diff --git "a/devign/alpaca/devign_1024-*_test.json" "b/devign/alpaca/devign_1024-*_test.json" new file mode 100644--- /dev/null +++ "b/devign/alpaca/devign_1024-*_test.json" @@ -0,0 +1,2144 @@ +[ + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "print_insn_ppi (int field_b, struct disassemble_info *info)\n\n{\n\n static const char *sx_tab[] = { \"x0\", \"x1\", \"a0\", \"a1\" };\n\n static const char *sy_tab[] = { \"y0\", \"y1\", \"m0\", \"m1\" };\n\n fprintf_ftype fprintf_fn = info->fprintf_func;\n\n void *stream = info->stream;\n\n unsigned int nib1, nib2, nib3;\n\n unsigned int altnib1, nib4;\n\n const char *dc = NULL;\n\n const sh_opcode_info *op;\n\n\n\n if ((field_b & 0xe800) == 0)\n\n {\n\n fprintf_fn (stream, \"psh%c\\t#%d,\",\n\n\t\t field_b & 0x1000 ? 'a' : 'l',\n\n\t\t (field_b >> 4) & 127);\n\n print_dsp_reg (field_b & 0xf, fprintf_fn, stream);\n\n return;\n\n }\n\n if ((field_b & 0xc000) == 0x4000 && (field_b & 0x3000) != 0x1000)\n\n {\n\n static const char *du_tab[] = { \"x0\", \"y0\", \"a0\", \"a1\" };\n\n static const char *se_tab[] = { \"x0\", \"x1\", \"y0\", \"a1\" };\n\n static const char *sf_tab[] = { \"y0\", \"y1\", \"x0\", \"a1\" };\n\n static const char *sg_tab[] = { \"m0\", \"m1\", \"a0\", \"a1\" };\n\n\n\n if (field_b & 0x2000)\n\n\t{\n\n\t fprintf_fn (stream, \"p%s %s,%s,%s\\t\",\n\n\t\t (field_b & 0x1000) ? \"add\" : \"sub\",\n\n\t\t sx_tab[(field_b >> 6) & 3],\n\n\t\t sy_tab[(field_b >> 4) & 3],\n\n\t\t du_tab[(field_b >> 0) & 3]);\n\n\t}\n\n else if ((field_b & 0xf0) == 0x10\n\n\t && info->mach != bfd_mach_sh_dsp\n\n\t && info->mach != bfd_mach_sh3_dsp)\n\n\t{\n\n\t fprintf_fn (stream, \"pclr %s \\t\", du_tab[(field_b >> 0) & 3]);\n\n\t}\n\n else if ((field_b & 0xf3) != 0)\n\n\t{\n\n\t fprintf_fn (stream, \".word 0x%x\\t\", field_b);\n\n\t}\n\n fprintf_fn (stream, \"pmuls%c%s,%s,%s\",\n\n\t\t field_b & 0x2000 ? ' ' : '\\t',\n\n\t\t se_tab[(field_b >> 10) & 3],\n\n\t\t sf_tab[(field_b >> 8) & 3],\n\n\t\t sg_tab[(field_b >> 2) & 3]);\n\n return;\n\n }\n\n\n\n nib1 = PPIC;\n\n nib2 = field_b >> 12 & 0xf;\n\n nib3 = field_b >> 8 & 0xf;\n\n nib4 = field_b >> 4 & 0xf;\n\n switch (nib3 & 0x3)\n\n {\n\n case 0:\n\n dc = \"\";\n\n nib1 = PPI3;\n\n break;\n\n case 1:\n\n dc = \"\";\n\n break;\n\n case 2:\n\n dc = \"dct \";\n\n nib3 -= 1;\n\n break;\n\n case 3:\n\n dc = \"dcf \";\n\n nib3 -= 2;\n\n break;\n\n }\n\n if (nib1 == PPI3)\n\n altnib1 = PPI3NC;\n\n else\n\n altnib1 = nib1;\n\n for (op = sh_table; op->name; op++)\n\n {\n\n if ((op->nibbles[1] == nib1 || op->nibbles[1] == altnib1)\n\n\t && op->nibbles[2] == nib2\n\n\t && op->nibbles[3] == nib3)\n\n\t{\n\n\t int n;\n\n\n\n\t switch (op->nibbles[4])\n\n\t {\n\n\t case HEX_0:\n\n\t break;\n\n\t case HEX_XX00:\n\n\t if ((nib4 & 3) != 0)\n\n\t\tcontinue;\n\n\t break;\n\n\t case HEX_1:\n\n\t if ((nib4 & 3) != 1)\n\n\t\tcontinue;\n\n\t break;\n\n\t case HEX_00YY:\n\n\t if ((nib4 & 0xc) != 0)\n\n\t\tcontinue;\n\n\t break;\n\n\t case HEX_4:\n\n\t if ((nib4 & 0xc) != 4)\n\n\t\tcontinue;\n\n\t break;\n\n\t default:\n\n\t abort ();\n\n\t }\n\n\t fprintf_fn (stream, \"%s%s\\t\", dc, op->name);\n\n\t for (n = 0; n < 3 && op->arg[n] != A_END; n++)\n\n\t {\n\n\t if (n && op->arg[1] != A_END)\n\n\t\tfprintf_fn (stream, \",\");\n\n\t switch (op->arg[n])\n\n\t\t{\n\n\t\tcase DSP_REG_N:\n\n\t\t print_dsp_reg (field_b & 0xf, fprintf_fn, stream);\n\n\t\t break;\n\n\t\tcase DSP_REG_X:\n\n\t\t fprintf_fn (stream, sx_tab[(field_b >> 6) & 3]);\n\n\t\t break;\n\n\t\tcase DSP_REG_Y:\n\n\t\t fprintf_fn (stream, sy_tab[(field_b >> 4) & 3]);\n\n\t\t break;\n\n\t\tcase A_MACH:\n\n\t\t fprintf_fn (stream, \"mach\");\n\n\t\t break;\n\n\t\tcase A_MACL:\n\n\t\t fprintf_fn (stream, \"macl\");\n\n\t\t break;\n\n\t\tdefault:\n\n\t\t abort ();\n\n\t\t}\n\n\t }\n\n\t return;\n\n\t}\n\n }\n\n /* Not found. */\n\n fprintf_fn (stream, \".word 0x%x\", field_b);\n\n}\n", + "output": "0", + "index": 21446 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void ibm_40p_init(MachineState *machine)\n\n{\n\n CPUPPCState *env = NULL;\n\n uint16_t cmos_checksum;\n\n PowerPCCPU *cpu;\n\n DeviceState *dev;\n\n SysBusDevice *pcihost;\n\n Nvram *m48t59 = NULL;\n\n PCIBus *pci_bus;\n\n ISABus *isa_bus;\n\n void *fw_cfg;\n\n int i;\n\n uint32_t kernel_base = 0, initrd_base = 0;\n\n long kernel_size = 0, initrd_size = 0;\n\n char boot_device;\n\n\n\n /* init CPU */\n\n if (!machine->cpu_model) {\n\n machine->cpu_model = \"604\";\n\n }\n\n cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU, machine->cpu_model));\n\n if (!cpu) {\n\n error_report(\"could not initialize CPU '%s'\",\n\n machine->cpu_model);\n\n exit(1);\n\n }\n\n env = &cpu->env;\n\n if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {\n\n error_report(\"only 6xx bus is supported on this machine\");\n\n exit(1);\n\n }\n\n\n\n if (env->flags & POWERPC_FLAG_RTC_CLK) {\n\n /* POWER / PowerPC 601 RTC clock frequency is 7.8125 MHz */\n\n cpu_ppc_tb_init(env, 7812500UL);\n\n } else {\n\n /* Set time-base frequency to 100 Mhz */\n\n cpu_ppc_tb_init(env, 100UL * 1000UL * 1000UL);\n\n }\n\n qemu_register_reset(ppc_prep_reset, cpu);\n\n\n\n /* PCI host */\n\n dev = qdev_create(NULL, \"raven-pcihost\");\n\n if (!bios_name) {\n\n bios_name = BIOS_FILENAME;\n\n }\n\n qdev_prop_set_string(dev, \"bios-name\", bios_name);\n\n qdev_prop_set_uint32(dev, \"elf-machine\", PPC_ELF_MACHINE);\n\n pcihost = SYS_BUS_DEVICE(dev);\n\n object_property_add_child(qdev_get_machine(), \"raven\", OBJECT(dev), NULL);\n\n qdev_init_nofail(dev);\n\n pci_bus = PCI_BUS(qdev_get_child_bus(dev, \"pci.0\"));\n\n if (!pci_bus) {\n\n error_report(\"could not create PCI host controller\");\n\n exit(1);\n\n }\n\n\n\n /* PCI -> ISA bridge */\n\n dev = DEVICE(pci_create_simple(pci_bus, PCI_DEVFN(11, 0), \"i82378\"));\n\n qdev_connect_gpio_out(dev, 0,\n\n cpu->env.irq_inputs[PPC6xx_INPUT_INT]);\n\n sysbus_connect_irq(pcihost, 0, qdev_get_gpio_in(dev, 15));\n\n sysbus_connect_irq(pcihost, 1, qdev_get_gpio_in(dev, 13));\n\n sysbus_connect_irq(pcihost, 2, qdev_get_gpio_in(dev, 15));\n\n sysbus_connect_irq(pcihost, 3, qdev_get_gpio_in(dev, 13));\n\n isa_bus = ISA_BUS(qdev_get_child_bus(dev, \"isa.0\"));\n\n\n\n /* Memory controller */\n\n dev = DEVICE(isa_create(isa_bus, \"rs6000-mc\"));\n\n qdev_prop_set_uint32(dev, \"ram-size\", machine->ram_size);\n\n qdev_init_nofail(dev);\n\n\n\n /* initialize CMOS checksums */\n\n cmos_checksum = 0x6aa9;\n\n qbus_walk_children(BUS(isa_bus), prep_set_cmos_checksum, NULL, NULL, NULL,\n\n &cmos_checksum);\n\n\n\n /* add some more devices */\n\n if (defaults_enabled()) {\n\n isa_create_simple(isa_bus, \"i8042\");\n\n m48t59 = NVRAM(isa_create_simple(isa_bus, \"isa-m48t59\"));\n\n\n\n dev = DEVICE(isa_create(isa_bus, \"cs4231a\"));\n\n qdev_prop_set_uint32(dev, \"iobase\", 0x830);\n\n qdev_prop_set_uint32(dev, \"irq\", 10);\n\n qdev_init_nofail(dev);\n\n\n\n dev = DEVICE(isa_create(isa_bus, \"pc87312\"));\n\n qdev_prop_set_uint32(dev, \"config\", 12);\n\n qdev_init_nofail(dev);\n\n\n\n dev = DEVICE(isa_create(isa_bus, \"prep-systemio\"));\n\n qdev_prop_set_uint32(dev, \"ibm-planar-id\", 0xfc);\n\n qdev_prop_set_uint32(dev, \"equipment\", 0xc0);\n\n qdev_init_nofail(dev);\n\n\n\n pci_create_simple(pci_bus, PCI_DEVFN(1, 0), \"lsi53c810\");\n\n\n\n /* XXX: s3-trio at PCI_DEVFN(2, 0) */\n\n pci_vga_init(pci_bus);\n\n\n\n for (i = 0; i < nb_nics; i++) {\n\n pci_nic_init_nofail(&nd_table[i], pci_bus, \"pcnet\",\n\n i == 0 ? \"3\" : NULL);\n\n }\n\n }\n\n\n\n /* Prepare firmware configuration for OpenBIOS */\n\n fw_cfg = fw_cfg_init_mem(CFG_ADDR, CFG_ADDR + 2);\n\n\n\n if (machine->kernel_filename) {\n\n /* load kernel */\n\n kernel_base = KERNEL_LOAD_ADDR;\n\n kernel_size = load_image_targphys(machine->kernel_filename,\n\n kernel_base,\n\n machine->ram_size - kernel_base);\n\n if (kernel_size < 0) {\n\n error_report(\"could not load kernel '%s'\",\n\n machine->kernel_filename);\n\n exit(1);\n\n }\n\n fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);\n\n fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);\n\n /* load initrd */\n\n if (machine->initrd_filename) {\n\n initrd_base = INITRD_LOAD_ADDR;\n\n initrd_size = load_image_targphys(machine->initrd_filename,\n\n initrd_base,\n\n machine->ram_size - initrd_base);\n\n if (initrd_size < 0) {\n\n error_report(\"could not load initial ram disk '%s'\",\n\n machine->initrd_filename);\n\n exit(1);\n\n }\n\n fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);\n\n fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);\n\n }\n\n if (machine->kernel_cmdline && *machine->kernel_cmdline) {\n\n fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, CMDLINE_ADDR);\n\n pstrcpy_targphys(\"cmdline\", CMDLINE_ADDR, TARGET_PAGE_SIZE,\n\n machine->kernel_cmdline);\n\n fw_cfg_add_string(fw_cfg, FW_CFG_CMDLINE_DATA,\n\n machine->kernel_cmdline);\n\n fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE,\n\n strlen(machine->kernel_cmdline) + 1);\n\n }\n\n boot_device = 'm';\n\n } else {\n\n boot_device = machine->boot_order[0];\n\n }\n\n\n\n fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)max_cpus);\n\n fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)machine->ram_size);\n\n fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_PREP);\n\n\n\n fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width);\n\n fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height);\n\n fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth);\n\n\n\n fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled());\n\n if (kvm_enabled()) {\n\n#ifdef CONFIG_KVM\n\n uint8_t *hypercall;\n\n\n\n fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, kvmppc_get_tbfreq());\n\n hypercall = g_malloc(16);\n\n kvmppc_get_hypercall(env, hypercall, 16);\n\n fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16);\n\n fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid());\n\n#endif\n\n } else {\n\n fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, NANOSECONDS_PER_SECOND);\n\n }\n\n fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, boot_device);\n\n qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);\n\n\n\n /* Prepare firmware configuration for Open Hack'Ware */\n\n if (m48t59) {\n\n PPC_NVRAM_set_params(m48t59, NVRAM_SIZE, \"PREP\", ram_size,\n\n boot_device,\n\n kernel_base, kernel_size,\n\n machine->kernel_cmdline,\n\n initrd_base, initrd_size,\n\n /* XXX: need an option to load a NVRAM image */\n\n 0,\n\n graphic_width, graphic_height, graphic_depth);\n\n }\n\n}\n", + "output": "1", + "index": 25746 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "inline static void RENAME(hcscale)(uint16_t *dst, int dstWidth,\n\n\t\t\t\tuint8_t *src1, uint8_t *src2, int srcW, int xInc)\n\n{\n\n#ifdef HAVE_MMX\n\n\t// use the new MMX scaler if th mmx2 cant be used (its faster than the x86asm one)\n\n if(sws_flags != SWS_FAST_BILINEAR || (!canMMX2BeUsed))\n\n#else\n\n if(sws_flags != SWS_FAST_BILINEAR)\n\n#endif\n\n {\n\n \tRENAME(hScale)(dst , dstWidth, src1, srcW, xInc, hChrFilter, hChrFilterPos, hChrFilterSize);\n\n \tRENAME(hScale)(dst+2048, dstWidth, src2, srcW, xInc, hChrFilter, hChrFilterPos, hChrFilterSize);\n\n }\n\n else // Fast Bilinear upscale / crap downscale\n\n {\n\n#ifdef ARCH_X86\n\n#ifdef HAVE_MMX2\n\n\tint i;\n\n\tif(canMMX2BeUsed)\n\n\t{\n\n\t\tasm volatile(\n\n\t\t\"pxor %%mm7, %%mm7\t\t\\n\\t\"\n\n\t\t\"pxor %%mm2, %%mm2\t\t\\n\\t\" // 2*xalpha\n\n\t\t\"movd %5, %%mm6\t\t\t\\n\\t\" // xInc&0xFFFF\n\n\t\t\"punpcklwd %%mm6, %%mm6\t\t\\n\\t\"\n\n\t\t\"punpcklwd %%mm6, %%mm6\t\t\\n\\t\"\n\n\t\t\"movq %%mm6, %%mm2\t\t\\n\\t\"\n\n\t\t\"psllq $16, %%mm2\t\t\\n\\t\"\n\n\t\t\"paddw %%mm6, %%mm2\t\t\\n\\t\"\n\n\t\t\"psllq $16, %%mm2\t\t\\n\\t\"\n\n\t\t\"paddw %%mm6, %%mm2\t\t\\n\\t\"\n\n\t\t\"psllq $16, %%mm2\t\t\\n\\t\" //0,t,2t,3t\t\tt=xInc&0xFFFF\n\n\t\t\"movq %%mm2, \"MANGLE(temp0)\"\t\\n\\t\"\n\n\t\t\"movd %4, %%mm6\t\t\t\\n\\t\" //(xInc*4)&0xFFFF\n\n\t\t\"punpcklwd %%mm6, %%mm6\t\t\\n\\t\"\n\n\t\t\"punpcklwd %%mm6, %%mm6\t\t\\n\\t\"\n\n\t\t\"xorl %%eax, %%eax\t\t\\n\\t\" // i\n\n\t\t\"movl %0, %%esi\t\t\t\\n\\t\" // src\n\n\t\t\"movl %1, %%edi\t\t\t\\n\\t\" // buf1\n\n\t\t\"movl %3, %%edx\t\t\t\\n\\t\" // (xInc*4)>>16\n\n\t\t\"xorl %%ecx, %%ecx\t\t\\n\\t\"\n\n\t\t\"xorl %%ebx, %%ebx\t\t\\n\\t\"\n\n\t\t\"movw %4, %%bx\t\t\t\\n\\t\" // (xInc*4)&0xFFFF\n\n\n\n#define FUNNYUVCODE \\\n\n\t\t\tPREFETCH\" 1024(%%esi)\t\t\\n\\t\"\\\n\n\t\t\tPREFETCH\" 1056(%%esi)\t\t\\n\\t\"\\\n\n\t\t\tPREFETCH\" 1088(%%esi)\t\t\\n\\t\"\\\n\n\t\t\t\"call \"MANGLE(funnyUVCode)\"\t\\n\\t\"\\\n\n\t\t\t\"movq \"MANGLE(temp0)\", %%mm2\t\\n\\t\"\\\n\n\t\t\t\"xorl %%ecx, %%ecx\t\t\\n\\t\"\n\n\n\nFUNNYUVCODE\n\nFUNNYUVCODE\n\nFUNNYUVCODE\n\nFUNNYUVCODE\n\n\n\nFUNNYUVCODE\n\nFUNNYUVCODE\n\nFUNNYUVCODE\n\nFUNNYUVCODE\n\n\t\t\"xorl %%eax, %%eax\t\t\\n\\t\" // i\n\n\t\t\"movl %6, %%esi\t\t\t\\n\\t\" // src\n\n\t\t\"movl %1, %%edi\t\t\t\\n\\t\" // buf1\n\n\t\t\"addl $4096, %%edi\t\t\\n\\t\"\n\n\n\nFUNNYUVCODE\n\nFUNNYUVCODE\n\nFUNNYUVCODE\n\nFUNNYUVCODE\n\n\n\nFUNNYUVCODE\n\nFUNNYUVCODE\n\nFUNNYUVCODE\n\nFUNNYUVCODE\n\n\n\n\t\t:: \"m\" (src1), \"m\" (dst), \"m\" (dstWidth), \"m\" ((xInc*4)>>16),\n\n\t\t \"m\" ((xInc*4)&0xFFFF), \"m\" (xInc&0xFFFF), \"m\" (src2)\n\n\t\t: \"%eax\", \"%ebx\", \"%ecx\", \"%edx\", \"%esi\", \"%edi\"\n\n\t);\n\n\t\tfor(i=dstWidth-1; (i*xInc)>>16 >=srcW-1; i--)\n\n\t\t{\n\n//\t\t\tprintf(\"%d %d %d\\n\", dstWidth, i, srcW);\n\n\t\t\tdst[i] = src1[srcW-1]*128;\n\n\t\t\tdst[i+2048] = src2[srcW-1]*128;\n\n\t\t}\n\n\t}\n\n\telse\n\n\t{\n\n#endif\n\n\tasm volatile(\n\n\t\t\"xorl %%eax, %%eax\t\t\\n\\t\" // i\n\n\t\t\"xorl %%ebx, %%ebx\t\t\\n\\t\" // xx\n\n\t\t\"xorl %%ecx, %%ecx\t\t\\n\\t\" // 2*xalpha\n\n\t\t\".balign 16\t\t\t\\n\\t\"\n\n\t\t\"1:\t\t\t\t\\n\\t\"\n\n\t\t\"movl %0, %%esi\t\t\t\\n\\t\"\n\n\t\t\"movzbl (%%esi, %%ebx), %%edi\t\\n\\t\" //src[xx]\n\n\t\t\"movzbl 1(%%esi, %%ebx), %%esi\t\\n\\t\" //src[xx+1]\n\n\t\t\"subl %%edi, %%esi\t\t\\n\\t\" //src[xx+1] - src[xx]\n\n\t\t\"imull %%ecx, %%esi\t\t\\n\\t\" //(src[xx+1] - src[xx])*2*xalpha\n\n\t\t\"shll $16, %%edi\t\t\\n\\t\"\n\n\t\t\"addl %%edi, %%esi\t\t\\n\\t\" //src[xx+1]*2*xalpha + src[xx]*(1-2*xalpha)\n\n\t\t\"movl %1, %%edi\t\t\t\\n\\t\"\n\n\t\t\"shrl $9, %%esi\t\t\t\\n\\t\"\n\n\t\t\"movw %%si, (%%edi, %%eax, 2)\t\\n\\t\"\n\n\n\n\t\t\"movzbl (%5, %%ebx), %%edi\t\\n\\t\" //src[xx]\n\n\t\t\"movzbl 1(%5, %%ebx), %%esi\t\\n\\t\" //src[xx+1]\n\n\t\t\"subl %%edi, %%esi\t\t\\n\\t\" //src[xx+1] - src[xx]\n\n\t\t\"imull %%ecx, %%esi\t\t\\n\\t\" //(src[xx+1] - src[xx])*2*xalpha\n\n\t\t\"shll $16, %%edi\t\t\\n\\t\"\n\n\t\t\"addl %%edi, %%esi\t\t\\n\\t\" //src[xx+1]*2*xalpha + src[xx]*(1-2*xalpha)\n\n\t\t\"movl %1, %%edi\t\t\t\\n\\t\"\n\n\t\t\"shrl $9, %%esi\t\t\t\\n\\t\"\n\n\t\t\"movw %%si, 4096(%%edi, %%eax, 2)\\n\\t\"\n\n\n\n\t\t\"addw %4, %%cx\t\t\t\\n\\t\" //2*xalpha += xInc&0xFF\n\n\t\t\"adcl %3, %%ebx\t\t\t\\n\\t\" //xx+= xInc>>8 + carry\n\n\t\t\"addl $1, %%eax\t\t\t\\n\\t\"\n\n\t\t\"cmpl %2, %%eax\t\t\t\\n\\t\"\n\n\t\t\" jb 1b\t\t\t\t\\n\\t\"\n\n\n\n\t\t:: \"m\" (src1), \"m\" (dst), \"m\" (dstWidth), \"m\" (xInc>>16), \"m\" (xInc&0xFFFF),\n\n\t\t\"r\" (src2)\n\n\t\t: \"%eax\", \"%ebx\", \"%ecx\", \"%edi\", \"%esi\"\n\n\t\t);\n\n#ifdef HAVE_MMX2\n\n\t} //if MMX2 cant be used\n\n#endif\n\n#else\n\n\tint i;\n\n\tunsigned int xpos=0;\n\n\tfor(i=0;i>16;\n\n\t\tregister unsigned int xalpha=(xpos&0xFFFF)>>9;\n\n\t\tdst[i]=(src1[xx]*(xalpha^127)+src1[xx+1]*xalpha);\n\n\t\tdst[i+2048]=(src2[xx]*(xalpha^127)+src2[xx+1]*xalpha);\n\n/* slower\n\n\t dst[i]= (src1[xx]<<7) + (src1[xx+1] - src1[xx])*xalpha;\n\n\t dst[i+2048]=(src2[xx]<<7) + (src2[xx+1] - src2[xx])*xalpha;\n\n*/\n\n\t\txpos+=xInc;\n\n\t}\n\n#endif\n\n }\n\n}\n", + "output": "1", + "index": 23676 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static inline int msmpeg4_decode_block(MpegEncContext * s, DCTELEM * block,\n\n int n, int coded)\n\n{\n\n int level, i, last, run, run_diff;\n\n int dc_pred_dir;\n\n RLTable *rl;\n\n RL_VLC_ELEM *rl_vlc;\n\n const UINT8 *scan_table;\n\n int qmul, qadd;\n\n\n\n if (s->mb_intra) {\n\n qmul=1;\n\n qadd=0;\n\n\n\n\t/* DC coef */\n\n set_stat(ST_DC);\n\n level = msmpeg4_decode_dc(s, n, &dc_pred_dir);\n\n#ifdef PRINT_MB\n\n{\n\n static int c;\n\n if(n==0) c=0;\n\n if(n==4) printf(\"%X\", c);\n\n c+= c +dc_pred_dir;\n\n}\n\n#endif\n\n if (level < 0){\n\n fprintf(stderr, \"dc overflow- block: %d qscale: %d//\\n\", n, s->qscale);\n\n if(s->inter_intra_pred) level=0;\n\n else return -1;\n\n }\n\n if (n < 4) {\n\n rl = &rl_table[s->rl_table_index];\n\n if(level > 256*s->y_dc_scale){\n\n fprintf(stderr, \"dc overflow+ L qscale: %d//\\n\", s->qscale);\n\n if(!s->inter_intra_pred) return -1;\n\n }\n\n } else {\n\n rl = &rl_table[3 + s->rl_chroma_table_index];\n\n if(level > 256*s->c_dc_scale){\n\n fprintf(stderr, \"dc overflow+ C qscale: %d//\\n\", s->qscale);\n\n if(!s->inter_intra_pred) return -1;\n\n }\n\n }\n\n block[0] = level;\n\n\n\n run_diff = 0;\n\n i = 0;\n\n if (!coded) {\n\n goto not_coded;\n\n }\n\n if (s->ac_pred) {\n\n if (dc_pred_dir == 0) \n\n scan_table = s->intra_v_scantable; /* left */\n\n else\n\n scan_table = s->intra_h_scantable; /* top */\n\n } else {\n\n scan_table = s->intra_scantable;\n\n }\n\n set_stat(ST_INTRA_AC);\n\n rl_vlc= rl->rl_vlc[0];\n\n } else {\n\n qmul = s->qscale << 1;\n\n qadd = (s->qscale - 1) | 1;\n\n i = -1;\n\n rl = &rl_table[3 + s->rl_table_index];\n\n\n\n if(s->msmpeg4_version==2)\n\n run_diff = 0;\n\n else\n\n run_diff = 1;\n\n\n\n if (!coded) {\n\n s->block_last_index[n] = i;\n\n return 0;\n\n }\n\n scan_table = s->inter_scantable;\n\n set_stat(ST_INTER_AC);\n\n rl_vlc= rl->rl_vlc[s->qscale];\n\n }\n\n {\n\n OPEN_READER(re, &s->gb);\n\n for(;;) {\n\n UPDATE_CACHE(re, &s->gb);\n\n GET_RL_VLC(level, run, re, &s->gb, rl_vlc, TEX_VLC_BITS, 2);\n\n if (level==0) {\n\n int cache;\n\n cache= GET_CACHE(re, &s->gb);\n\n /* escape */\n\n if (s->msmpeg4_version==1 || (cache&0x80000000)==0) {\n\n if (s->msmpeg4_version==1 || (cache&0x40000000)==0) {\n\n /* third escape */\n\n if(s->msmpeg4_version!=1) LAST_SKIP_BITS(re, &s->gb, 2);\n\n UPDATE_CACHE(re, &s->gb);\n\n if(s->msmpeg4_version<=3){\n\n last= SHOW_UBITS(re, &s->gb, 1); SKIP_CACHE(re, &s->gb, 1);\n\n run= SHOW_UBITS(re, &s->gb, 6); SKIP_CACHE(re, &s->gb, 6);\n\n level= SHOW_SBITS(re, &s->gb, 8); LAST_SKIP_CACHE(re, &s->gb, 8);\n\n SKIP_COUNTER(re, &s->gb, 1+6+8);\n\n }else{ \n\n int sign;\n\n last= SHOW_UBITS(re, &s->gb, 1); SKIP_BITS(re, &s->gb, 1);\n\n if(!s->esc3_level_length){\n\n int ll;\n\n //printf(\"ESC-3 %X at %d %d\\n\", show_bits(&s->gb, 24), s->mb_x, s->mb_y);\n\n if(s->qscale<8){\n\n ll= SHOW_UBITS(re, &s->gb, 3); SKIP_BITS(re, &s->gb, 3);\n\n if(ll==0){\n\n if(SHOW_UBITS(re, &s->gb, 1)) printf(\"cool a new vlc code ,contact the ffmpeg developers and upload the file\\n\");\n\n SKIP_BITS(re, &s->gb, 1);\n\n ll=8;\n\n }\n\n }else{\n\n ll=2;\n\n while(ll<8 && SHOW_UBITS(re, &s->gb, 1)==0){\n\n ll++;\n\n SKIP_BITS(re, &s->gb, 1);\n\n }\n\n if(ll<8) SKIP_BITS(re, &s->gb, 1);\n\n }\n\n\n\n s->esc3_level_length= ll;\n\n s->esc3_run_length= SHOW_UBITS(re, &s->gb, 2) + 3; SKIP_BITS(re, &s->gb, 2);\n\n//printf(\"level length:%d, run length: %d\\n\", ll, s->esc3_run_length);\n\n UPDATE_CACHE(re, &s->gb);\n\n }\n\n run= SHOW_UBITS(re, &s->gb, s->esc3_run_length); \n\n SKIP_BITS(re, &s->gb, s->esc3_run_length);\n\n \n\n sign= SHOW_UBITS(re, &s->gb, 1); \n\n SKIP_BITS(re, &s->gb, 1);\n\n \n\n level= SHOW_UBITS(re, &s->gb, s->esc3_level_length); \n\n SKIP_BITS(re, &s->gb, s->esc3_level_length);\n\n if(sign) level= -level;\n\n }\n\n//printf(\"level: %d, run: %d at %d %d\\n\", level, run, s->mb_x, s->mb_y);\n\n#if 0 // waste of time / this will detect very few errors\n\n {\n\n const int abs_level= ABS(level);\n\n const int run1= run - rl->max_run[last][abs_level] - run_diff;\n\n if(abs_level<=MAX_LEVEL && run<=MAX_RUN){\n\n if(abs_level <= rl->max_level[last][run]){\n\n fprintf(stderr, \"illegal 3. esc, vlc encoding possible\\n\");\n\n return DECODING_AC_LOST;\n\n }\n\n if(abs_level <= rl->max_level[last][run]*2){\n\n fprintf(stderr, \"illegal 3. esc, esc 1 encoding possible\\n\");\n\n return DECODING_AC_LOST;\n\n }\n\n if(run1>=0 && abs_level <= rl->max_level[last][run1]){\n\n fprintf(stderr, \"illegal 3. esc, esc 2 encoding possible\\n\");\n\n return DECODING_AC_LOST;\n\n }\n\n }\n\n }\n\n#endif\n\n\t\t //level = level * qmul + (level>0) * qadd - (level<=0) * qadd ;\n\n\t\t if (level>0) level= level * qmul + qadd;\n\n else level= level * qmul - qadd;\n\n#if 0 // waste of time too :(\n\n if(level>2048 || level<-2048){\n\n fprintf(stderr, \"|level| overflow in 3. esc\\n\");\n\n return DECODING_AC_LOST;\n\n }\n\n#endif\n\n i+= run + 1;\n\n if(last) i+=192;\n\n#ifdef ERROR_DETAILS\n\n if(run==66)\n\n fprintf(stderr, \"illegal vlc code in ESC3 level=%d\\n\", level);\n\n else if((i>62 && i<192) || i>192+63)\n\n fprintf(stderr, \"run overflow in ESC3 i=%d run=%d level=%d\\n\", i, run, level);\n\n#endif\n\n } else {\n\n /* second escape */\n\n#if MIN_CACHE_BITS < 23\n\n LAST_SKIP_BITS(re, &s->gb, 2);\n\n UPDATE_CACHE(re, &s->gb);\n\n#else\n\n SKIP_BITS(re, &s->gb, 2);\n\n#endif\n\n GET_RL_VLC(level, run, re, &s->gb, rl_vlc, TEX_VLC_BITS, 2);\n\n i+= run + rl->max_run[run>>7][level/qmul] + run_diff; //FIXME opt indexing\n\n level = (level ^ SHOW_SBITS(re, &s->gb, 1)) - SHOW_SBITS(re, &s->gb, 1);\n\n LAST_SKIP_BITS(re, &s->gb, 1);\n\n#ifdef ERROR_DETAILS\n\n if(run==66)\n\n fprintf(stderr, \"illegal vlc code in ESC2 level=%d\\n\", level);\n\n else if((i>62 && i<192) || i>192+63)\n\n fprintf(stderr, \"run overflow in ESC2 i=%d run=%d level=%d\\n\", i, run, level);\n\n#endif\n\n }\n\n } else {\n\n /* first escape */\n\n#if MIN_CACHE_BITS < 22\n\n LAST_SKIP_BITS(re, &s->gb, 1);\n\n UPDATE_CACHE(re, &s->gb);\n\n#else\n\n SKIP_BITS(re, &s->gb, 1);\n\n#endif\n\n GET_RL_VLC(level, run, re, &s->gb, rl_vlc, TEX_VLC_BITS, 2);\n\n i+= run;\n\n level = level + rl->max_level[run>>7][(run-1)&63] * qmul;//FIXME opt indexing\n\n level = (level ^ SHOW_SBITS(re, &s->gb, 1)) - SHOW_SBITS(re, &s->gb, 1);\n\n LAST_SKIP_BITS(re, &s->gb, 1);\n\n#ifdef ERROR_DETAILS\n\n if(run==66)\n\n fprintf(stderr, \"illegal vlc code in ESC1 level=%d\\n\", level);\n\n else if((i>62 && i<192) || i>192+63)\n\n fprintf(stderr, \"run overflow in ESC1 i=%d run=%d level=%d\\n\", i, run, level);\n\n#endif\n\n }\n\n } else {\n\n i+= run;\n\n level = (level ^ SHOW_SBITS(re, &s->gb, 1)) - SHOW_SBITS(re, &s->gb, 1);\n\n LAST_SKIP_BITS(re, &s->gb, 1);\n\n#ifdef ERROR_DETAILS\n\n if(run==66)\n\n fprintf(stderr, \"illegal vlc code level=%d\\n\", level);\n\n else if((i>62 && i<192) || i>192+63)\n\n fprintf(stderr, \"run overflow i=%d run=%d level=%d\\n\", i, run, level);\n\n#endif\n\n }\n\n if (i > 62){\n\n i-= 192;\n\n if(i&(~63)){\n\n if(i+192 == 64 && level/qmul==-1){\n\n fprintf(stderr, \"ignoring overflow at %d %d\\n\", s->mb_x, s->mb_y);\n\n break;\n\n }else{\n\n fprintf(stderr, \"ac-tex damaged at %d %d\\n\", s->mb_x, s->mb_y);\n\n return -1;\n\n }\n\n }\n\n\n\n block[scan_table[i]] = level;\n\n break;\n\n }\n\n\n\n block[scan_table[i]] = level;\n\n }\n\n CLOSE_READER(re, &s->gb);\n\n }\n\n not_coded:\n\n if (s->mb_intra) {\n\n mpeg4_pred_ac(s, block, n, dc_pred_dir);\n\n if (s->ac_pred) {\n\n i = 63; /* XXX: not optimal */\n\n }\n\n }\n\n if(s->msmpeg4_version==4 && i>0) i=63; //FIXME/XXX optimize\n\n s->block_last_index[n] = i;\n\n \n\n return 0;\n\n}\n", + "output": "0", + "index": 24469 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int genh_read_header(AVFormatContext *s)\n\n{\n\n unsigned start_offset, header_size, codec, coef_type, coef[2];\n\n GENHDemuxContext *c = s->priv_data;\n\n av_unused unsigned coef_splitted[2];\n\n int align, ch, ret;\n\n AVStream *st;\n\n\n\n avio_skip(s->pb, 4);\n\n\n\n st = avformat_new_stream(s, NULL);\n\n if (!st)\n\n return AVERROR(ENOMEM);\n\n\n\n st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;\n\n st->codecpar->channels = avio_rl32(s->pb);\n\n if (st->codecpar->channels <= 0)\n\n return AVERROR_INVALIDDATA;\n\n if (st->codecpar->channels == 1)\n\n st->codecpar->channel_layout = AV_CH_LAYOUT_MONO;\n\n else if (st->codecpar->channels == 2)\n\n st->codecpar->channel_layout = AV_CH_LAYOUT_STEREO;\n\n align =\n\n c->interleave_size = avio_rl32(s->pb);\n\n if (align < 0 || align > INT_MAX / st->codecpar->channels)\n\n return AVERROR_INVALIDDATA;\n\n st->codecpar->block_align = align * st->codecpar->channels;\n\n st->codecpar->sample_rate = avio_rl32(s->pb);\n\n avio_skip(s->pb, 4);\n\n st->duration = avio_rl32(s->pb);\n\n\n\n codec = avio_rl32(s->pb);\n\n switch (codec) {\n\n case 0: st->codecpar->codec_id = AV_CODEC_ID_ADPCM_PSX; break;\n\n case 1:\n\n case 11: st->codecpar->bits_per_coded_sample = 4;\n\n st->codecpar->block_align = 36 * st->codecpar->channels;\n\n st->codecpar->codec_id = AV_CODEC_ID_ADPCM_IMA_WAV; break;\n\n case 2: st->codecpar->codec_id = AV_CODEC_ID_ADPCM_DTK; break;\n\n case 3: st->codecpar->codec_id = st->codecpar->block_align > 0 ?\n\n AV_CODEC_ID_PCM_S16BE_PLANAR :\n\n AV_CODEC_ID_PCM_S16BE; break;\n\n case 4: st->codecpar->codec_id = st->codecpar->block_align > 0 ?\n\n AV_CODEC_ID_PCM_S16LE_PLANAR :\n\n AV_CODEC_ID_PCM_S16LE; break;\n\n case 5: st->codecpar->codec_id = st->codecpar->block_align > 0 ?\n\n AV_CODEC_ID_PCM_S8_PLANAR :\n\n AV_CODEC_ID_PCM_S8; break;\n\n case 6: st->codecpar->codec_id = AV_CODEC_ID_SDX2_DPCM; break;\n\n case 7: ret = ff_alloc_extradata(st->codecpar, 2);\n\n if (ret < 0)\n\n return ret;\n\n AV_WL16(st->codecpar->extradata, 3);\n\n st->codecpar->codec_id = AV_CODEC_ID_ADPCM_IMA_WS; break;\n\n case 10: st->codecpar->codec_id = AV_CODEC_ID_ADPCM_AICA; break;\n\n case 12: st->codecpar->codec_id = AV_CODEC_ID_ADPCM_THP; break;\n\n case 13: st->codecpar->codec_id = AV_CODEC_ID_PCM_U8; break;\n\n case 17: st->codecpar->codec_id = AV_CODEC_ID_ADPCM_IMA_QT; break;\n\n default:\n\n avpriv_request_sample(s, \"codec %d\", codec);\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n\n\n start_offset = avio_rl32(s->pb);\n\n header_size = avio_rl32(s->pb);\n\n\n\n if (header_size > start_offset)\n\n return AVERROR_INVALIDDATA;\n\n\n\n if (header_size == 0)\n\n start_offset = 0x800;\n\n\n\n coef[0] = avio_rl32(s->pb);\n\n coef[1] = avio_rl32(s->pb);\n\n c->dsp_int_type = avio_rl32(s->pb);\n\n coef_type = avio_rl32(s->pb);\n\n coef_splitted[0] = avio_rl32(s->pb);\n\n coef_splitted[1] = avio_rl32(s->pb);\n\n\n\n if (st->codecpar->codec_id == AV_CODEC_ID_ADPCM_THP) {\n\n if (st->codecpar->channels > 2) {\n\n avpriv_request_sample(s, \"channels %d>2\", st->codecpar->channels);\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n\n\n ff_alloc_extradata(st->codecpar, 32 * st->codecpar->channels);\n\n for (ch = 0; ch < st->codecpar->channels; ch++) {\n\n if (coef_type & 1) {\n\n avpriv_request_sample(s, \"coef_type & 1\");\n\n return AVERROR_PATCHWELCOME;\n\n } else {\n\n avio_seek(s->pb, coef[ch], SEEK_SET);\n\n avio_read(s->pb, st->codecpar->extradata + 32 * ch, 32);\n\n }\n\n }\n\n\n\n if (c->dsp_int_type == 1) {\n\n st->codecpar->block_align = 8 * st->codecpar->channels;\n\n if (c->interleave_size != 1 &&\n\n c->interleave_size != 2 &&\n\n c->interleave_size != 4)\n\n return AVERROR_INVALIDDATA;\n\n }\n\n }\n\n\n\n avio_skip(s->pb, start_offset - avio_tell(s->pb));\n\n\n\n avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate);\n\n\n\n return 0;\n\n}\n", + "output": "1", + "index": 18378 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void gmc1_motion(MpegEncContext *s,\n\n uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,\n\n uint8_t **ref_picture)\n\n{\n\n uint8_t *ptr;\n\n int offset, src_x, src_y, linesize, uvlinesize;\n\n int motion_x, motion_y;\n\n int emu=0;\n\n\n\n motion_x= s->sprite_offset[0][0];\n\n motion_y= s->sprite_offset[0][1];\n\n src_x = s->mb_x * 16 + (motion_x >> (s->sprite_warping_accuracy+1));\n\n src_y = s->mb_y * 16 + (motion_y >> (s->sprite_warping_accuracy+1));\n\n motion_x<<=(3-s->sprite_warping_accuracy);\n\n motion_y<<=(3-s->sprite_warping_accuracy);\n\n src_x = av_clip(src_x, -16, s->width);\n\n if (src_x == s->width)\n\n motion_x =0;\n\n src_y = av_clip(src_y, -16, s->height);\n\n if (src_y == s->height)\n\n motion_y =0;\n\n\n\n linesize = s->linesize;\n\n uvlinesize = s->uvlinesize;\n\n\n\n ptr = ref_picture[0] + (src_y * linesize) + src_x;\n\n\n\n if(s->flags&CODEC_FLAG_EMU_EDGE){\n\n if( (unsigned)src_x >= FFMAX(s->h_edge_pos - 17, 0)\n\n || (unsigned)src_y >= FFMAX(s->v_edge_pos - 17, 0)){\n\n s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr, linesize, 17, 17, src_x, src_y, s->h_edge_pos, s->v_edge_pos);\n\n ptr= s->edge_emu_buffer;\n\n }\n\n }\n\n\n\n if((motion_x|motion_y)&7){\n\n s->dsp.gmc1(dest_y , ptr , linesize, 16, motion_x&15, motion_y&15, 128 - s->no_rounding);\n\n s->dsp.gmc1(dest_y+8, ptr+8, linesize, 16, motion_x&15, motion_y&15, 128 - s->no_rounding);\n\n }else{\n\n int dxy;\n\n\n\n dxy= ((motion_x>>3)&1) | ((motion_y>>2)&2);\n\n if (s->no_rounding){\n\n s->hdsp.put_no_rnd_pixels_tab[0][dxy](dest_y, ptr, linesize, 16);\n\n }else{\n\n s->hdsp.put_pixels_tab [0][dxy](dest_y, ptr, linesize, 16);\n\n }\n\n }\n\n\n\n if(CONFIG_GRAY && s->flags&CODEC_FLAG_GRAY) return;\n\n\n\n motion_x= s->sprite_offset[1][0];\n\n motion_y= s->sprite_offset[1][1];\n\n src_x = s->mb_x * 8 + (motion_x >> (s->sprite_warping_accuracy+1));\n\n src_y = s->mb_y * 8 + (motion_y >> (s->sprite_warping_accuracy+1));\n\n motion_x<<=(3-s->sprite_warping_accuracy);\n\n motion_y<<=(3-s->sprite_warping_accuracy);\n\n src_x = av_clip(src_x, -8, s->width>>1);\n\n if (src_x == s->width>>1)\n\n motion_x =0;\n\n src_y = av_clip(src_y, -8, s->height>>1);\n\n if (src_y == s->height>>1)\n\n motion_y =0;\n\n\n\n offset = (src_y * uvlinesize) + src_x;\n\n ptr = ref_picture[1] + offset;\n\n if(s->flags&CODEC_FLAG_EMU_EDGE){\n\n if( (unsigned)src_x >= FFMAX((s->h_edge_pos>>1) - 9, 0)\n\n || (unsigned)src_y >= FFMAX((s->v_edge_pos>>1) - 9, 0)){\n\n s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr, uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1);\n\n ptr= s->edge_emu_buffer;\n\n emu=1;\n\n }\n\n }\n\n s->dsp.gmc1(dest_cb, ptr, uvlinesize, 8, motion_x&15, motion_y&15, 128 - s->no_rounding);\n\n\n\n ptr = ref_picture[2] + offset;\n\n if(emu){\n\n s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr, uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1);\n\n ptr= s->edge_emu_buffer;\n\n }\n\n s->dsp.gmc1(dest_cr, ptr, uvlinesize, 8, motion_x&15, motion_y&15, 128 - s->no_rounding);\n\n\n\n return;\n\n}\n", + "output": "0", + "index": 12051 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int ff_h264_decode_mb_cabac(const H264Context *h, H264SliceContext *sl)\n\n{\n\n int mb_xy;\n\n int mb_type, partition_count, cbp = 0;\n\n int dct8x8_allowed= h->pps.transform_8x8_mode;\n\n int decode_chroma = h->sps.chroma_format_idc == 1 || h->sps.chroma_format_idc == 2;\n\n const int pixel_shift = h->pixel_shift;\n\n\n\n mb_xy = sl->mb_xy = sl->mb_x + sl->mb_y*h->mb_stride;\n\n\n\n ff_tlog(h->avctx, \"pic:%d mb:%d/%d\\n\", h->frame_num, sl->mb_x, sl->mb_y);\n\n if (sl->slice_type_nos != AV_PICTURE_TYPE_I) {\n\n int skip;\n\n /* a skipped mb needs the aff flag from the following mb */\n\n if (FRAME_MBAFF(h) && (sl->mb_y & 1) == 1 && sl->prev_mb_skipped)\n\n skip = sl->next_mb_skipped;\n\n else\n\n skip = decode_cabac_mb_skip(h, sl, sl->mb_x, sl->mb_y );\n\n /* read skip flags */\n\n if( skip ) {\n\n if (FRAME_MBAFF(h) && (sl->mb_y & 1) == 0) {\n\n h->cur_pic.mb_type[mb_xy] = MB_TYPE_SKIP;\n\n sl->next_mb_skipped = decode_cabac_mb_skip(h, sl, sl->mb_x, sl->mb_y+1 );\n\n if(!sl->next_mb_skipped)\n\n sl->mb_mbaff = sl->mb_field_decoding_flag = decode_cabac_field_decoding_flag(h, sl);\n\n }\n\n\n\n decode_mb_skip(h, sl);\n\n\n\n h->cbp_table[mb_xy] = 0;\n\n h->chroma_pred_mode_table[mb_xy] = 0;\n\n sl->last_qscale_diff = 0;\n\n\n\n return 0;\n\n\n\n }\n\n }\n\n if (FRAME_MBAFF(h)) {\n\n if ((sl->mb_y & 1) == 0)\n\n sl->mb_mbaff =\n\n sl->mb_field_decoding_flag = decode_cabac_field_decoding_flag(h, sl);\n\n }\n\n\n\n sl->prev_mb_skipped = 0;\n\n\n\n fill_decode_neighbors(h, sl, -(MB_FIELD(sl)));\n\n\n\n if (sl->slice_type_nos == AV_PICTURE_TYPE_B) {\n\n int ctx = 0;\n\n av_assert2(sl->slice_type_nos == AV_PICTURE_TYPE_B);\n\n\n\n if (!IS_DIRECT(sl->left_type[LTOP] - 1))\n\n ctx++;\n\n if (!IS_DIRECT(sl->top_type - 1))\n\n ctx++;\n\n\n\n if( !get_cabac_noinline( &sl->cabac, &sl->cabac_state[27+ctx] ) ){\n\n mb_type= 0; /* B_Direct_16x16 */\n\n }else if( !get_cabac_noinline( &sl->cabac, &sl->cabac_state[27+3] ) ) {\n\n mb_type= 1 + get_cabac_noinline( &sl->cabac, &sl->cabac_state[27+5] ); /* B_L[01]_16x16 */\n\n }else{\n\n int bits;\n\n bits = get_cabac_noinline( &sl->cabac, &sl->cabac_state[27+4] ) << 3;\n\n bits+= get_cabac_noinline( &sl->cabac, &sl->cabac_state[27+5] ) << 2;\n\n bits+= get_cabac_noinline( &sl->cabac, &sl->cabac_state[27+5] ) << 1;\n\n bits+= get_cabac_noinline( &sl->cabac, &sl->cabac_state[27+5] );\n\n if( bits < 8 ){\n\n mb_type= bits + 3; /* B_Bi_16x16 through B_L1_L0_16x8 */\n\n }else if( bits == 13 ){\n\n mb_type = decode_cabac_intra_mb_type(sl, 32, 0);\n\n goto decode_intra_mb;\n\n }else if( bits == 14 ){\n\n mb_type= 11; /* B_L1_L0_8x16 */\n\n }else if( bits == 15 ){\n\n mb_type= 22; /* B_8x8 */\n\n }else{\n\n bits= ( bits<<1 ) + get_cabac_noinline( &sl->cabac, &sl->cabac_state[27+5] );\n\n mb_type= bits - 4; /* B_L0_Bi_* through B_Bi_Bi_* */\n\n }\n\n }\n\n partition_count= b_mb_type_info[mb_type].partition_count;\n\n mb_type= b_mb_type_info[mb_type].type;\n\n } else if (sl->slice_type_nos == AV_PICTURE_TYPE_P) {\n\n if( get_cabac_noinline( &sl->cabac, &sl->cabac_state[14] ) == 0 ) {\n\n /* P-type */\n\n if( get_cabac_noinline( &sl->cabac, &sl->cabac_state[15] ) == 0 ) {\n\n /* P_L0_D16x16, P_8x8 */\n\n mb_type= 3 * get_cabac_noinline( &sl->cabac, &sl->cabac_state[16] );\n\n } else {\n\n /* P_L0_D8x16, P_L0_D16x8 */\n\n mb_type= 2 - get_cabac_noinline( &sl->cabac, &sl->cabac_state[17] );\n\n }\n\n partition_count= p_mb_type_info[mb_type].partition_count;\n\n mb_type= p_mb_type_info[mb_type].type;\n\n } else {\n\n mb_type = decode_cabac_intra_mb_type(sl, 17, 0);\n\n goto decode_intra_mb;\n\n }\n\n } else {\n\n mb_type = decode_cabac_intra_mb_type(sl, 3, 1);\n\n if (sl->slice_type == AV_PICTURE_TYPE_SI && mb_type)\n\n mb_type--;\n\n av_assert2(sl->slice_type_nos == AV_PICTURE_TYPE_I);\n\ndecode_intra_mb:\n\n partition_count = 0;\n\n cbp= i_mb_type_info[mb_type].cbp;\n\n sl->intra16x16_pred_mode = i_mb_type_info[mb_type].pred_mode;\n\n mb_type= i_mb_type_info[mb_type].type;\n\n }\n\n if (MB_FIELD(sl))\n\n mb_type |= MB_TYPE_INTERLACED;\n\n\n\n h->slice_table[mb_xy] = sl->slice_num;\n\n\n\n if(IS_INTRA_PCM(mb_type)) {\n\n const int mb_size = ff_h264_mb_sizes[h->sps.chroma_format_idc] *\n\n h->sps.bit_depth_luma >> 3;\n\n const uint8_t *ptr;\n\n\n\n // We assume these blocks are very rare so we do not optimize it.\n\n // FIXME The two following lines get the bitstream position in the cabac\n\n // decode, I think it should be done by a function in cabac.h (or cabac.c).\n\n ptr= sl->cabac.bytestream;\n\n if(sl->cabac.low&0x1) ptr--;\n\n if(CABAC_BITS==16){\n\n if(sl->cabac.low&0x1FF) ptr--;\n\n }\n\n\n\n // The pixels are stored in the same order as levels in h->mb array.\n\n if ((int) (sl->cabac.bytestream_end - ptr) < mb_size)\n\n return -1;\n\n sl->intra_pcm_ptr = ptr;\n\n ptr += mb_size;\n\n\n\n ff_init_cabac_decoder(&sl->cabac, ptr, sl->cabac.bytestream_end - ptr);\n\n\n\n // All blocks are present\n\n h->cbp_table[mb_xy] = 0xf7ef;\n\n h->chroma_pred_mode_table[mb_xy] = 0;\n\n // In deblocking, the quantizer is 0\n\n h->cur_pic.qscale_table[mb_xy] = 0;\n\n // All coeffs are present\n\n memset(h->non_zero_count[mb_xy], 16, 48);\n\n h->cur_pic.mb_type[mb_xy] = mb_type;\n\n sl->last_qscale_diff = 0;\n\n return 0;\n\n }\n\n\n\n fill_decode_caches(h, sl, mb_type);\n\n\n\n if( IS_INTRA( mb_type ) ) {\n\n int i, pred_mode;\n\n if( IS_INTRA4x4( mb_type ) ) {\n\n if (dct8x8_allowed && get_cabac_noinline(&sl->cabac, &sl->cabac_state[399 + sl->neighbor_transform_size])) {\n\n mb_type |= MB_TYPE_8x8DCT;\n\n for( i = 0; i < 16; i+=4 ) {\n\n int pred = pred_intra_mode(h, sl, i);\n\n int mode = decode_cabac_mb_intra4x4_pred_mode(sl, pred);\n\n fill_rectangle(&sl->intra4x4_pred_mode_cache[scan8[i]], 2, 2, 8, mode, 1);\n\n }\n\n } else {\n\n for( i = 0; i < 16; i++ ) {\n\n int pred = pred_intra_mode(h, sl, i);\n\n sl->intra4x4_pred_mode_cache[scan8[i]] = decode_cabac_mb_intra4x4_pred_mode(sl, pred);\n\n\n\n ff_tlog(h->avctx, \"i4x4 pred=%d mode=%d\\n\", pred,\n\n sl->intra4x4_pred_mode_cache[scan8[i]]);\n\n }\n\n }\n\n write_back_intra_pred_mode(h, sl);\n\n if (ff_h264_check_intra4x4_pred_mode(h, sl) < 0 ) return -1;\n\n } else {\n\n sl->intra16x16_pred_mode = ff_h264_check_intra_pred_mode(h, sl, sl->intra16x16_pred_mode, 0);\n\n if (sl->intra16x16_pred_mode < 0) return -1;\n\n }\n\n if(decode_chroma){\n\n h->chroma_pred_mode_table[mb_xy] =\n\n pred_mode = decode_cabac_mb_chroma_pre_mode(h, sl);\n\n\n\n pred_mode= ff_h264_check_intra_pred_mode(h, sl, pred_mode, 1 );\n\n if( pred_mode < 0 ) return -1;\n\n sl->chroma_pred_mode = pred_mode;\n\n } else {\n\n sl->chroma_pred_mode = DC_128_PRED8x8;\n\n }\n\n } else if( partition_count == 4 ) {\n\n int i, j, sub_partition_count[4], list, ref[2][4];\n\n\n\n if (sl->slice_type_nos == AV_PICTURE_TYPE_B ) {\n\n for( i = 0; i < 4; i++ ) {\n\n sl->sub_mb_type[i] = decode_cabac_b_mb_sub_type(sl);\n\n sub_partition_count[i] = b_sub_mb_type_info[sl->sub_mb_type[i]].partition_count;\n\n sl->sub_mb_type[i] = b_sub_mb_type_info[sl->sub_mb_type[i]].type;\n\n }\n\n if (IS_DIRECT(sl->sub_mb_type[0] | sl->sub_mb_type[1] |\n\n sl->sub_mb_type[2] | sl->sub_mb_type[3])) {\n\n ff_h264_pred_direct_motion(h, sl, &mb_type);\n\n sl->ref_cache[0][scan8[4]] =\n\n sl->ref_cache[1][scan8[4]] =\n\n sl->ref_cache[0][scan8[12]] =\n\n sl->ref_cache[1][scan8[12]] = PART_NOT_AVAILABLE;\n\n for( i = 0; i < 4; i++ )\n\n fill_rectangle(&sl->direct_cache[scan8[4*i]], 2, 2, 8, (sl->sub_mb_type[i] >> 1) & 0xFF, 1);\n\n }\n\n } else {\n\n for( i = 0; i < 4; i++ ) {\n\n sl->sub_mb_type[i] = decode_cabac_p_mb_sub_type(sl);\n\n sub_partition_count[i] = p_sub_mb_type_info[sl->sub_mb_type[i]].partition_count;\n\n sl->sub_mb_type[i] = p_sub_mb_type_info[sl->sub_mb_type[i]].type;\n\n }\n\n }\n\n\n\n for( list = 0; list < sl->list_count; list++ ) {\n\n for( i = 0; i < 4; i++ ) {\n\n if(IS_DIRECT(sl->sub_mb_type[i])) continue;\n\n if(IS_DIR(sl->sub_mb_type[i], 0, list)){\n\n unsigned rc = sl->ref_count[list] << MB_MBAFF(sl);\n\n if (rc > 1) {\n\n ref[list][i] = decode_cabac_mb_ref(sl, list, 4 * i);\n\n if (ref[list][i] >= rc) {\n\n av_log(h->avctx, AV_LOG_ERROR, \"Reference %d >= %d\\n\", ref[list][i], rc);\n\n return -1;\n\n }\n\n }else\n\n ref[list][i] = 0;\n\n } else {\n\n ref[list][i] = -1;\n\n }\n\n sl->ref_cache[list][scan8[4 * i] + 1] =\n\n sl->ref_cache[list][scan8[4 * i] + 8] = sl->ref_cache[list][scan8[4 * i] + 9] = ref[list][i];\n\n }\n\n }\n\n\n\n if(dct8x8_allowed)\n\n dct8x8_allowed = get_dct8x8_allowed(h, sl);\n\n\n\n for (list = 0; list < sl->list_count; list++) {\n\n for(i=0; i<4; i++){\n\n sl->ref_cache[list][scan8[4 * i]] = sl->ref_cache[list][scan8[4 * i] + 1];\n\n if(IS_DIRECT(sl->sub_mb_type[i])){\n\n fill_rectangle(sl->mvd_cache[list][scan8[4*i]], 2, 2, 8, 0, 2);\n\n continue;\n\n }\n\n\n\n if(IS_DIR(sl->sub_mb_type[i], 0, list) && !IS_DIRECT(sl->sub_mb_type[i])){\n\n const int sub_mb_type= sl->sub_mb_type[i];\n\n const int block_width= (sub_mb_type & (MB_TYPE_16x16|MB_TYPE_16x8)) ? 2 : 1;\n\n for(j=0; jmv_cache[list][ scan8[index] ];\n\n uint8_t (* mvd_cache)[2]= &sl->mvd_cache[list][ scan8[index] ];\n\n pred_motion(h, sl, index, block_width, list, sl->ref_cache[list][ scan8[index] ], &mx, &my);\n\n DECODE_CABAC_MB_MVD(sl, list, index)\n\n ff_tlog(h->avctx, \"final mv:%d %d\\n\", mx, my);\n\n\n\n if(IS_SUB_8X8(sub_mb_type)){\n\n mv_cache[ 1 ][0]=\n\n mv_cache[ 8 ][0]= mv_cache[ 9 ][0]= mx;\n\n mv_cache[ 1 ][1]=\n\n mv_cache[ 8 ][1]= mv_cache[ 9 ][1]= my;\n\n\n\n mvd_cache[ 1 ][0]=\n\n mvd_cache[ 8 ][0]= mvd_cache[ 9 ][0]= mpx;\n\n mvd_cache[ 1 ][1]=\n\n mvd_cache[ 8 ][1]= mvd_cache[ 9 ][1]= mpy;\n\n }else if(IS_SUB_8X4(sub_mb_type)){\n\n mv_cache[ 1 ][0]= mx;\n\n mv_cache[ 1 ][1]= my;\n\n\n\n mvd_cache[ 1 ][0]= mpx;\n\n mvd_cache[ 1 ][1]= mpy;\n\n }else if(IS_SUB_4X8(sub_mb_type)){\n\n mv_cache[ 8 ][0]= mx;\n\n mv_cache[ 8 ][1]= my;\n\n\n\n mvd_cache[ 8 ][0]= mpx;\n\n mvd_cache[ 8 ][1]= mpy;\n\n }\n\n mv_cache[ 0 ][0]= mx;\n\n mv_cache[ 0 ][1]= my;\n\n\n\n mvd_cache[ 0 ][0]= mpx;\n\n mvd_cache[ 0 ][1]= mpy;\n\n }\n\n }else{\n\n fill_rectangle(sl->mv_cache [list][ scan8[4*i] ], 2, 2, 8, 0, 4);\n\n fill_rectangle(sl->mvd_cache[list][ scan8[4*i] ], 2, 2, 8, 0, 2);\n\n }\n\n }\n\n }\n\n } else if( IS_DIRECT(mb_type) ) {\n\n ff_h264_pred_direct_motion(h, sl, &mb_type);\n\n fill_rectangle(sl->mvd_cache[0][scan8[0]], 4, 4, 8, 0, 2);\n\n fill_rectangle(sl->mvd_cache[1][scan8[0]], 4, 4, 8, 0, 2);\n\n dct8x8_allowed &= h->sps.direct_8x8_inference_flag;\n\n } else {\n\n int list, i;\n\n if(IS_16X16(mb_type)){\n\n for (list = 0; list < sl->list_count; list++) {\n\n if(IS_DIR(mb_type, 0, list)){\n\n int ref;\n\n unsigned rc = sl->ref_count[list] << MB_MBAFF(sl);\n\n if (rc > 1) {\n\n ref= decode_cabac_mb_ref(sl, list, 0);\n\n if (ref >= rc) {\n\n av_log(h->avctx, AV_LOG_ERROR, \"Reference %d >= %d\\n\", ref, rc);\n\n return -1;\n\n }\n\n }else\n\n ref=0;\n\n fill_rectangle(&sl->ref_cache[list][ scan8[0] ], 4, 4, 8, ref, 1);\n\n }\n\n }\n\n for (list = 0; list < sl->list_count; list++) {\n\n if(IS_DIR(mb_type, 0, list)){\n\n int mx,my,mpx,mpy;\n\n pred_motion(h, sl, 0, 4, list, sl->ref_cache[list][ scan8[0] ], &mx, &my);\n\n DECODE_CABAC_MB_MVD(sl, list, 0)\n\n ff_tlog(h->avctx, \"final mv:%d %d\\n\", mx, my);\n\n\n\n fill_rectangle(sl->mvd_cache[list][ scan8[0] ], 4, 4, 8, pack8to16(mpx,mpy), 2);\n\n fill_rectangle(sl->mv_cache[list][ scan8[0] ], 4, 4, 8, pack16to32(mx,my), 4);\n\n }\n\n }\n\n }\n\n else if(IS_16X8(mb_type)){\n\n for (list = 0; list < sl->list_count; list++) {\n\n for(i=0; i<2; i++){\n\n if(IS_DIR(mb_type, i, list)){\n\n int ref;\n\n unsigned rc = sl->ref_count[list] << MB_MBAFF(sl);\n\n if (rc > 1) {\n\n ref= decode_cabac_mb_ref(sl, list, 8 * i);\n\n if (ref >= rc) {\n\n av_log(h->avctx, AV_LOG_ERROR, \"Reference %d >= %d\\n\", ref, rc);\n\n return -1;\n\n }\n\n }else\n\n ref=0;\n\n fill_rectangle(&sl->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, ref, 1);\n\n }else\n\n fill_rectangle(&sl->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, (LIST_NOT_USED&0xFF), 1);\n\n }\n\n }\n\n for (list = 0; list < sl->list_count; list++) {\n\n for(i=0; i<2; i++){\n\n if(IS_DIR(mb_type, i, list)){\n\n int mx,my,mpx,mpy;\n\n pred_16x8_motion(h, sl, 8*i, list, sl->ref_cache[list][scan8[0] + 16*i], &mx, &my);\n\n DECODE_CABAC_MB_MVD(sl, list, 8*i)\n\n ff_tlog(h->avctx, \"final mv:%d %d\\n\", mx, my);\n\n\n\n fill_rectangle(sl->mvd_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack8to16(mpx,mpy), 2);\n\n fill_rectangle(sl->mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack16to32(mx,my), 4);\n\n }else{\n\n fill_rectangle(sl->mvd_cache[list][ scan8[0] + 16*i ], 4, 2, 8, 0, 2);\n\n fill_rectangle(sl->mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, 0, 4);\n\n }\n\n }\n\n }\n\n }else{\n\n av_assert2(IS_8X16(mb_type));\n\n for (list = 0; list < sl->list_count; list++) {\n\n for(i=0; i<2; i++){\n\n if(IS_DIR(mb_type, i, list)){ //FIXME optimize\n\n int ref;\n\n unsigned rc = sl->ref_count[list] << MB_MBAFF(sl);\n\n if (rc > 1) {\n\n ref = decode_cabac_mb_ref(sl, list, 4 * i);\n\n if (ref >= rc) {\n\n av_log(h->avctx, AV_LOG_ERROR, \"Reference %d >= %d\\n\", ref, rc);\n\n return -1;\n\n }\n\n }else\n\n ref=0;\n\n fill_rectangle(&sl->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, ref, 1);\n\n }else\n\n fill_rectangle(&sl->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, (LIST_NOT_USED&0xFF), 1);\n\n }\n\n }\n\n for (list = 0; list < sl->list_count; list++) {\n\n for(i=0; i<2; i++){\n\n if(IS_DIR(mb_type, i, list)){\n\n int mx,my,mpx,mpy;\n\n pred_8x16_motion(h, sl, i*4, list, sl->ref_cache[list][ scan8[0] + 2*i ], &mx, &my);\n\n DECODE_CABAC_MB_MVD(sl, list, 4*i)\n\n\n\n ff_tlog(h->avctx, \"final mv:%d %d\\n\", mx, my);\n\n fill_rectangle(sl->mvd_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack8to16(mpx,mpy), 2);\n\n fill_rectangle(sl->mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack16to32(mx,my), 4);\n\n }else{\n\n fill_rectangle(sl->mvd_cache[list][ scan8[0] + 2*i ], 2, 4, 8, 0, 2);\n\n fill_rectangle(sl->mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, 0, 4);\n\n }\n\n }\n\n }\n\n }\n\n }\n\n\n\n if( IS_INTER( mb_type ) ) {\n\n h->chroma_pred_mode_table[mb_xy] = 0;\n\n write_back_motion(h, sl, mb_type);\n\n }\n\n\n\n if( !IS_INTRA16x16( mb_type ) ) {\n\n cbp = decode_cabac_mb_cbp_luma(sl);\n\n if(decode_chroma)\n\n cbp |= decode_cabac_mb_cbp_chroma(sl) << 4;\n\n } else {\n\n if (!decode_chroma && cbp>15) {\n\n av_log(h->avctx, AV_LOG_ERROR, \"gray chroma\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n }\n\n\n\n h->cbp_table[mb_xy] = sl->cbp = cbp;\n\n\n\n if( dct8x8_allowed && (cbp&15) && !IS_INTRA( mb_type ) ) {\n\n mb_type |= MB_TYPE_8x8DCT * get_cabac_noinline(&sl->cabac, &sl->cabac_state[399 + sl->neighbor_transform_size]);\n\n }\n\n\n\n /* It would be better to do this in fill_decode_caches, but we don't know\n\n * the transform mode of the current macroblock there. */\n\n if (CHROMA444(h) && IS_8x8DCT(mb_type)){\n\n int i;\n\n uint8_t *nnz_cache = sl->non_zero_count_cache;\n\n for (i = 0; i < 2; i++){\n\n if (sl->left_type[LEFT(i)] && !IS_8x8DCT(sl->left_type[LEFT(i)])) {\n\n nnz_cache[3+8* 1 + 2*8*i]=\n\n nnz_cache[3+8* 2 + 2*8*i]=\n\n nnz_cache[3+8* 6 + 2*8*i]=\n\n nnz_cache[3+8* 7 + 2*8*i]=\n\n nnz_cache[3+8*11 + 2*8*i]=\n\n nnz_cache[3+8*12 + 2*8*i]= IS_INTRA(mb_type) ? 64 : 0;\n\n }\n\n }\n\n if (sl->top_type && !IS_8x8DCT(sl->top_type)){\n\n uint32_t top_empty = CABAC(h) && !IS_INTRA(mb_type) ? 0 : 0x40404040;\n\n AV_WN32A(&nnz_cache[4+8* 0], top_empty);\n\n AV_WN32A(&nnz_cache[4+8* 5], top_empty);\n\n AV_WN32A(&nnz_cache[4+8*10], top_empty);\n\n }\n\n }\n\n h->cur_pic.mb_type[mb_xy] = mb_type;\n\n\n\n if( cbp || IS_INTRA16x16( mb_type ) ) {\n\n const uint8_t *scan, *scan8x8;\n\n const uint32_t *qmul;\n\n\n\n if(IS_INTERLACED(mb_type)){\n\n scan8x8 = sl->qscale ? h->field_scan8x8 : h->field_scan8x8_q0;\n\n scan = sl->qscale ? h->field_scan : h->field_scan_q0;\n\n }else{\n\n scan8x8 = sl->qscale ? h->zigzag_scan8x8 : h->zigzag_scan8x8_q0;\n\n scan = sl->qscale ? h->zigzag_scan : h->zigzag_scan_q0;\n\n }\n\n\n\n // decode_cabac_mb_dqp\n\n if(get_cabac_noinline( &sl->cabac, &sl->cabac_state[60 + (sl->last_qscale_diff != 0)])){\n\n int val = 1;\n\n int ctx= 2;\n\n const int max_qp = 51 + 6*(h->sps.bit_depth_luma-8);\n\n\n\n while( get_cabac_noinline( &sl->cabac, &sl->cabac_state[60 + ctx] ) ) {\n\n ctx= 3;\n\n val++;\n\n if(val > 2*max_qp){ //prevent infinite loop\n\n av_log(h->avctx, AV_LOG_ERROR, \"cabac decode of qscale diff failed at %d %d\\n\", sl->mb_x, sl->mb_y);\n\n return -1;\n\n }\n\n }\n\n\n\n if( val&0x01 )\n\n val= (val + 1)>>1 ;\n\n else\n\n val= -((val + 1)>>1);\n\n sl->last_qscale_diff = val;\n\n sl->qscale += val;\n\n if (((unsigned)sl->qscale) > max_qp){\n\n if (sl->qscale < 0) sl->qscale += max_qp + 1;\n\n else sl->qscale -= max_qp + 1;\n\n }\n\n sl->chroma_qp[0] = get_chroma_qp(h, 0, sl->qscale);\n\n sl->chroma_qp[1] = get_chroma_qp(h, 1, sl->qscale);\n\n }else\n\n sl->last_qscale_diff=0;\n\n\n\n decode_cabac_luma_residual(h, sl, scan, scan8x8, pixel_shift, mb_type, cbp, 0);\n\n if (CHROMA444(h)) {\n\n decode_cabac_luma_residual(h, sl, scan, scan8x8, pixel_shift, mb_type, cbp, 1);\n\n decode_cabac_luma_residual(h, sl, scan, scan8x8, pixel_shift, mb_type, cbp, 2);\n\n } else if (CHROMA422(h)) {\n\n if( cbp&0x30 ){\n\n int c;\n\n for (c = 0; c < 2; c++)\n\n decode_cabac_residual_dc_422(h, sl, sl->mb + ((256 + 16*16*c) << pixel_shift), 3,\n\n CHROMA_DC_BLOCK_INDEX + c,\n\n chroma422_dc_scan, 8);\n\n }\n\n\n\n if( cbp&0x20 ) {\n\n int c, i, i8x8;\n\n for( c = 0; c < 2; c++ ) {\n\n int16_t *mb = sl->mb + (16*(16 + 16*c) << pixel_shift);\n\n qmul = h->dequant4_coeff[c+1+(IS_INTRA( mb_type ) ? 0:3)][sl->chroma_qp[c]];\n\n for (i8x8 = 0; i8x8 < 2; i8x8++) {\n\n for (i = 0; i < 4; i++) {\n\n const int index = 16 + 16 * c + 8*i8x8 + i;\n\n decode_cabac_residual_nondc(h, sl, mb, 4, index, scan + 1, qmul, 15);\n\n mb += 16<non_zero_count_cache[scan8[16]], 4, 4, 8, 0, 1);\n\n fill_rectangle(&sl->non_zero_count_cache[scan8[32]], 4, 4, 8, 0, 1);\n\n }\n\n } else /* yuv420 */ {\n\n if( cbp&0x30 ){\n\n int c;\n\n for (c = 0; c < 2; c++)\n\n decode_cabac_residual_dc(h, sl, sl->mb + ((256 + 16*16*c) << pixel_shift), 3, CHROMA_DC_BLOCK_INDEX+c, chroma_dc_scan, 4);\n\n }\n\n\n\n if( cbp&0x20 ) {\n\n int c, i;\n\n for( c = 0; c < 2; c++ ) {\n\n qmul = h->dequant4_coeff[c+1+(IS_INTRA( mb_type ) ? 0:3)][sl->chroma_qp[c]];\n\n for( i = 0; i < 4; i++ ) {\n\n const int index = 16 + 16 * c + i;\n\n decode_cabac_residual_nondc(h, sl, sl->mb + (16*index << pixel_shift), 4, index, scan + 1, qmul, 15);\n\n }\n\n }\n\n } else {\n\n fill_rectangle(&sl->non_zero_count_cache[scan8[16]], 4, 4, 8, 0, 1);\n\n fill_rectangle(&sl->non_zero_count_cache[scan8[32]], 4, 4, 8, 0, 1);\n\n }\n\n }\n\n } else {\n\n fill_rectangle(&sl->non_zero_count_cache[scan8[ 0]], 4, 4, 8, 0, 1);\n\n fill_rectangle(&sl->non_zero_count_cache[scan8[16]], 4, 4, 8, 0, 1);\n\n fill_rectangle(&sl->non_zero_count_cache[scan8[32]], 4, 4, 8, 0, 1);\n\n sl->last_qscale_diff = 0;\n\n }\n\n\n\n h->cur_pic.qscale_table[mb_xy] = sl->qscale;\n\n write_back_non_zero_count(h, sl);\n\n\n\n return 0;\n\n}\n", + "output": "1", + "index": 22028 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int planarCopyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,\n\n int srcSliceH, uint8_t* dst[], int dstStride[])\n\n{\n\n int plane, i, j;\n\n for (plane=0; plane<4; plane++) {\n\n int length= (plane==0 || plane==3) ? c->srcW : -((-c->srcW )>>c->chrDstHSubSample);\n\n int y= (plane==0 || plane==3) ? srcSliceY: -((-srcSliceY)>>c->chrDstVSubSample);\n\n int height= (plane==0 || plane==3) ? srcSliceH: -((-srcSliceH)>>c->chrDstVSubSample);\n\n const uint8_t *srcPtr= src[plane];\n\n uint8_t *dstPtr= dst[plane] + dstStride[plane]*y;\n\n\n\n if (!dst[plane]) continue;\n\n // ignore palette for GRAY8\n\n if (plane == 1 && !dst[2]) continue;\n\n if (!src[plane] || (plane == 1 && !src[2])) {\n\n if(is16BPS(c->dstFormat))\n\n length*=2;\n\n fillPlane(dst[plane], dstStride[plane], length, height, y, (plane==3) ? 255 : 128);\n\n } else {\n\n if(is9_OR_10BPS(c->srcFormat)) {\n\n const int src_depth = av_pix_fmt_descriptors[c->srcFormat].comp[plane].depth_minus1+1;\n\n const int dst_depth = av_pix_fmt_descriptors[c->dstFormat].comp[plane].depth_minus1+1;\n\n const uint16_t *srcPtr2 = (const uint16_t*)srcPtr;\n\n\n\n if (is16BPS(c->dstFormat)) {\n\n uint16_t *dstPtr2 = (uint16_t*)dstPtr;\n\n#define COPY9_OR_10TO16(rfunc, wfunc) \\\n\n for (i = 0; i < height; i++) { \\\n\n for (j = 0; j < length; j++) { \\\n\n int srcpx = rfunc(&srcPtr2[j]); \\\n\n wfunc(&dstPtr2[j], (srcpx<<(16-src_depth)) | (srcpx>>(2*src_depth-16))); \\\n\n } \\\n\n dstPtr2 += dstStride[plane]/2; \\\n\n srcPtr2 += srcStride[plane]/2; \\\n\n }\n\n if (isBE(c->dstFormat)) {\n\n if (isBE(c->srcFormat)) {\n\n COPY9_OR_10TO16(AV_RB16, AV_WB16);\n\n } else {\n\n COPY9_OR_10TO16(AV_RL16, AV_WB16);\n\n }\n\n } else {\n\n if (isBE(c->srcFormat)) {\n\n COPY9_OR_10TO16(AV_RB16, AV_WL16);\n\n } else {\n\n COPY9_OR_10TO16(AV_RL16, AV_WL16);\n\n }\n\n }\n\n } else if (is9_OR_10BPS(c->dstFormat)) {\n\n uint16_t *dstPtr2 = (uint16_t*)dstPtr;\n\n#define COPY9_OR_10TO9_OR_10(loop) \\\n\n for (i = 0; i < height; i++) { \\\n\n for (j = 0; j < length; j++) { \\\n\n loop; \\\n\n } \\\n\n dstPtr2 += dstStride[plane]/2; \\\n\n srcPtr2 += srcStride[plane]/2; \\\n\n }\n\n#define COPY9_OR_10TO9_OR_10_2(rfunc, wfunc) \\\n\n if (dst_depth > src_depth) { \\\n\n COPY9_OR_10TO9_OR_10(int srcpx = rfunc(&srcPtr2[j]); \\\n\n wfunc(&dstPtr2[j], (srcpx << 1) | (srcpx >> 9))); \\\n\n } else if (dst_depth < src_depth) { \\\n\n DITHER_COPY(dstPtr2, dstStride[plane]/2, wfunc, \\\n\n srcPtr2, srcStride[plane]/2, rfunc, \\\n\n dither_8x8_1, 1); \\\n\n } else { \\\n\n COPY9_OR_10TO9_OR_10(wfunc(&dstPtr2[j], rfunc(&srcPtr2[j]))); \\\n\n }\n\n if (isBE(c->dstFormat)) {\n\n if (isBE(c->srcFormat)) {\n\n COPY9_OR_10TO9_OR_10_2(AV_RB16, AV_WB16);\n\n } else {\n\n COPY9_OR_10TO9_OR_10_2(AV_RL16, AV_WB16);\n\n }\n\n } else {\n\n if (isBE(c->srcFormat)) {\n\n COPY9_OR_10TO9_OR_10_2(AV_RB16, AV_WL16);\n\n } else {\n\n COPY9_OR_10TO9_OR_10_2(AV_RL16, AV_WL16);\n\n }\n\n }\n\n } else {\n\n#define W8(a, b) { *(a) = (b); }\n\n#define COPY9_OR_10TO8(rfunc) \\\n\n if (src_depth == 9) { \\\n\n DITHER_COPY(dstPtr, dstStride[plane], W8, \\\n\n srcPtr2, srcStride[plane]/2, rfunc, \\\n\n dither_8x8_1, 1); \\\n\n } else { \\\n\n DITHER_COPY(dstPtr, dstStride[plane], W8, \\\n\n srcPtr2, srcStride[plane]/2, rfunc, \\\n\n dither_8x8_3, 2); \\\n\n }\n\n if (isBE(c->srcFormat)) {\n\n COPY9_OR_10TO8(AV_RB16);\n\n } else {\n\n COPY9_OR_10TO8(AV_RL16);\n\n }\n\n }\n\n } else if(is9_OR_10BPS(c->dstFormat)) {\n\n const int dst_depth = av_pix_fmt_descriptors[c->dstFormat].comp[plane].depth_minus1+1;\n\n uint16_t *dstPtr2 = (uint16_t*)dstPtr;\n\n\n\n if (is16BPS(c->srcFormat)) {\n\n const uint16_t *srcPtr2 = (const uint16_t*)srcPtr;\n\n#define COPY16TO9_OR_10(rfunc, wfunc) \\\n\n if (dst_depth == 9) { \\\n\n DITHER_COPY(dstPtr2, dstStride[plane]/2, wfunc, \\\n\n srcPtr2, srcStride[plane]/2, rfunc, \\\n\n dither_8x8_128, 7); \\\n\n } else { \\\n\n DITHER_COPY(dstPtr2, dstStride[plane]/2, wfunc, \\\n\n srcPtr2, srcStride[plane]/2, rfunc, \\\n\n dither_8x8_64, 6); \\\n\n }\n\n if (isBE(c->dstFormat)) {\n\n if (isBE(c->srcFormat)) {\n\n COPY16TO9_OR_10(AV_RB16, AV_WB16);\n\n } else {\n\n COPY16TO9_OR_10(AV_RL16, AV_WB16);\n\n }\n\n } else {\n\n if (isBE(c->srcFormat)) {\n\n COPY16TO9_OR_10(AV_RB16, AV_WL16);\n\n } else {\n\n COPY16TO9_OR_10(AV_RL16, AV_WL16);\n\n }\n\n }\n\n } else /* 8bit */ {\n\n#define COPY8TO9_OR_10(wfunc) \\\n\n for (i = 0; i < height; i++) { \\\n\n for (j = 0; j < length; j++) { \\\n\n const int srcpx = srcPtr[j]; \\\n\n wfunc(&dstPtr2[j], (srcpx<<(dst_depth-8)) | (srcpx >> (16-dst_depth))); \\\n\n } \\\n\n dstPtr2 += dstStride[plane]/2; \\\n\n srcPtr += srcStride[plane]; \\\n\n }\n\n if (isBE(c->dstFormat)) {\n\n COPY8TO9_OR_10(AV_WB16);\n\n } else {\n\n COPY8TO9_OR_10(AV_WL16);\n\n }\n\n }\n\n } else if(is16BPS(c->srcFormat) && !is16BPS(c->dstFormat)) {\n\n const uint16_t *srcPtr2 = (const uint16_t*)srcPtr;\n\n#define COPY16TO8(rfunc) \\\n\n DITHER_COPY(dstPtr, dstStride[plane], W8, \\\n\n srcPtr2, srcStride[plane]/2, rfunc, \\\n\n dither_8x8_256, 8);\n\n if (isBE(c->srcFormat)) {\n\n COPY16TO8(AV_RB16);\n\n } else {\n\n COPY16TO8(AV_RL16);\n\n }\n\n } else if(!is16BPS(c->srcFormat) && is16BPS(c->dstFormat)) {\n\n for (i=0; isrcFormat) && is16BPS(c->dstFormat)\n\n && isBE(c->srcFormat) != isBE(c->dstFormat)) {\n\n\n\n for (i=0; i 0 && srcStride[plane] == length) {\n\n memcpy(dst[plane] + dstStride[plane]*y, src[plane],\n\n height*dstStride[plane]);\n\n } else {\n\n if(is16BPS(c->srcFormat) && is16BPS(c->dstFormat))\n\n length*=2;\n\n for (i=0; i> 32);\n\n#else\n\n tmp64 = ((helper_function)t0)(tci_read_reg(TCG_REG_R0),\n\n tci_read_reg(TCG_REG_R1),\n\n tci_read_reg(TCG_REG_R2),\n\n tci_read_reg(TCG_REG_R3),\n\n tci_read_reg(TCG_REG_R5));\n\n tci_write_reg(TCG_REG_R0, tmp64);\n\n#endif\n\n break;\n\n case INDEX_op_br:\n\n label = tci_read_label(&tb_ptr);\n\n assert(tb_ptr == old_code_ptr + op_size);\n\n tb_ptr = (uint8_t *)label;\n\n continue;\n\n case INDEX_op_setcond_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r32(&tb_ptr);\n\n t2 = tci_read_ri32(&tb_ptr);\n\n condition = *tb_ptr++;\n\n tci_write_reg32(t0, tci_compare32(t1, t2, condition));\n\n break;\n\n#if TCG_TARGET_REG_BITS == 32\n\n case INDEX_op_setcond2_i32:\n\n t0 = *tb_ptr++;\n\n tmp64 = tci_read_r64(&tb_ptr);\n\n v64 = tci_read_ri64(&tb_ptr);\n\n condition = *tb_ptr++;\n\n tci_write_reg32(t0, tci_compare64(tmp64, v64, condition));\n\n break;\n\n#elif TCG_TARGET_REG_BITS == 64\n\n case INDEX_op_setcond_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r64(&tb_ptr);\n\n t2 = tci_read_ri64(&tb_ptr);\n\n condition = *tb_ptr++;\n\n tci_write_reg64(t0, tci_compare64(t1, t2, condition));\n\n break;\n\n#endif\n\n case INDEX_op_mov_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r32(&tb_ptr);\n\n tci_write_reg32(t0, t1);\n\n break;\n\n case INDEX_op_movi_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_i32(&tb_ptr);\n\n tci_write_reg32(t0, t1);\n\n break;\n\n\n\n /* Load/store operations (32 bit). */\n\n\n\n case INDEX_op_ld8u_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r(&tb_ptr);\n\n t2 = tci_read_s32(&tb_ptr);\n\n tci_write_reg8(t0, *(uint8_t *)(t1 + t2));\n\n break;\n\n case INDEX_op_ld8s_i32:\n\n case INDEX_op_ld16u_i32:\n\n TODO();\n\n break;\n\n case INDEX_op_ld16s_i32:\n\n TODO();\n\n break;\n\n case INDEX_op_ld_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r(&tb_ptr);\n\n t2 = tci_read_s32(&tb_ptr);\n\n tci_write_reg32(t0, *(uint32_t *)(t1 + t2));\n\n break;\n\n case INDEX_op_st8_i32:\n\n t0 = tci_read_r8(&tb_ptr);\n\n t1 = tci_read_r(&tb_ptr);\n\n t2 = tci_read_s32(&tb_ptr);\n\n *(uint8_t *)(t1 + t2) = t0;\n\n break;\n\n case INDEX_op_st16_i32:\n\n t0 = tci_read_r16(&tb_ptr);\n\n t1 = tci_read_r(&tb_ptr);\n\n t2 = tci_read_s32(&tb_ptr);\n\n *(uint16_t *)(t1 + t2) = t0;\n\n break;\n\n case INDEX_op_st_i32:\n\n t0 = tci_read_r32(&tb_ptr);\n\n t1 = tci_read_r(&tb_ptr);\n\n t2 = tci_read_s32(&tb_ptr);\n\n assert(t1 != sp_value || (int32_t)t2 < 0);\n\n *(uint32_t *)(t1 + t2) = t0;\n\n break;\n\n\n\n /* Arithmetic operations (32 bit). */\n\n\n\n case INDEX_op_add_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri32(&tb_ptr);\n\n t2 = tci_read_ri32(&tb_ptr);\n\n tci_write_reg32(t0, t1 + t2);\n\n break;\n\n case INDEX_op_sub_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri32(&tb_ptr);\n\n t2 = tci_read_ri32(&tb_ptr);\n\n tci_write_reg32(t0, t1 - t2);\n\n break;\n\n case INDEX_op_mul_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri32(&tb_ptr);\n\n t2 = tci_read_ri32(&tb_ptr);\n\n tci_write_reg32(t0, t1 * t2);\n\n break;\n\n#if TCG_TARGET_HAS_div_i32\n\n case INDEX_op_div_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri32(&tb_ptr);\n\n t2 = tci_read_ri32(&tb_ptr);\n\n tci_write_reg32(t0, (int32_t)t1 / (int32_t)t2);\n\n break;\n\n case INDEX_op_divu_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri32(&tb_ptr);\n\n t2 = tci_read_ri32(&tb_ptr);\n\n tci_write_reg32(t0, t1 / t2);\n\n break;\n\n case INDEX_op_rem_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri32(&tb_ptr);\n\n t2 = tci_read_ri32(&tb_ptr);\n\n tci_write_reg32(t0, (int32_t)t1 % (int32_t)t2);\n\n break;\n\n case INDEX_op_remu_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri32(&tb_ptr);\n\n t2 = tci_read_ri32(&tb_ptr);\n\n tci_write_reg32(t0, t1 % t2);\n\n break;\n\n#elif TCG_TARGET_HAS_div2_i32\n\n case INDEX_op_div2_i32:\n\n case INDEX_op_divu2_i32:\n\n TODO();\n\n break;\n\n#endif\n\n case INDEX_op_and_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri32(&tb_ptr);\n\n t2 = tci_read_ri32(&tb_ptr);\n\n tci_write_reg32(t0, t1 & t2);\n\n break;\n\n case INDEX_op_or_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri32(&tb_ptr);\n\n t2 = tci_read_ri32(&tb_ptr);\n\n tci_write_reg32(t0, t1 | t2);\n\n break;\n\n case INDEX_op_xor_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri32(&tb_ptr);\n\n t2 = tci_read_ri32(&tb_ptr);\n\n tci_write_reg32(t0, t1 ^ t2);\n\n break;\n\n\n\n /* Shift/rotate operations (32 bit). */\n\n\n\n case INDEX_op_shl_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri32(&tb_ptr);\n\n t2 = tci_read_ri32(&tb_ptr);\n\n tci_write_reg32(t0, t1 << t2);\n\n break;\n\n case INDEX_op_shr_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri32(&tb_ptr);\n\n t2 = tci_read_ri32(&tb_ptr);\n\n tci_write_reg32(t0, t1 >> t2);\n\n break;\n\n case INDEX_op_sar_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri32(&tb_ptr);\n\n t2 = tci_read_ri32(&tb_ptr);\n\n tci_write_reg32(t0, ((int32_t)t1 >> t2));\n\n break;\n\n#if TCG_TARGET_HAS_rot_i32\n\n case INDEX_op_rotl_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri32(&tb_ptr);\n\n t2 = tci_read_ri32(&tb_ptr);\n\n tci_write_reg32(t0, rol32(t1, t2));\n\n break;\n\n case INDEX_op_rotr_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri32(&tb_ptr);\n\n t2 = tci_read_ri32(&tb_ptr);\n\n tci_write_reg32(t0, ror32(t1, t2));\n\n break;\n\n#endif\n\n#if TCG_TARGET_HAS_deposit_i32\n\n case INDEX_op_deposit_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r32(&tb_ptr);\n\n t2 = tci_read_r32(&tb_ptr);\n\n tmp16 = *tb_ptr++;\n\n tmp8 = *tb_ptr++;\n\n tmp32 = (((1 << tmp8) - 1) << tmp16);\n\n tci_write_reg32(t0, (t1 & ~tmp32) | ((t2 << tmp16) & tmp32));\n\n break;\n\n#endif\n\n case INDEX_op_brcond_i32:\n\n t0 = tci_read_r32(&tb_ptr);\n\n t1 = tci_read_ri32(&tb_ptr);\n\n condition = *tb_ptr++;\n\n label = tci_read_label(&tb_ptr);\n\n if (tci_compare32(t0, t1, condition)) {\n\n assert(tb_ptr == old_code_ptr + op_size);\n\n tb_ptr = (uint8_t *)label;\n\n continue;\n\n }\n\n break;\n\n#if TCG_TARGET_REG_BITS == 32\n\n case INDEX_op_add2_i32:\n\n t0 = *tb_ptr++;\n\n t1 = *tb_ptr++;\n\n tmp64 = tci_read_r64(&tb_ptr);\n\n tmp64 += tci_read_r64(&tb_ptr);\n\n tci_write_reg64(t1, t0, tmp64);\n\n break;\n\n case INDEX_op_sub2_i32:\n\n t0 = *tb_ptr++;\n\n t1 = *tb_ptr++;\n\n tmp64 = tci_read_r64(&tb_ptr);\n\n tmp64 -= tci_read_r64(&tb_ptr);\n\n tci_write_reg64(t1, t0, tmp64);\n\n break;\n\n case INDEX_op_brcond2_i32:\n\n tmp64 = tci_read_r64(&tb_ptr);\n\n v64 = tci_read_ri64(&tb_ptr);\n\n condition = *tb_ptr++;\n\n label = tci_read_label(&tb_ptr);\n\n if (tci_compare64(tmp64, v64, condition)) {\n\n assert(tb_ptr == old_code_ptr + op_size);\n\n tb_ptr = (uint8_t *)label;\n\n continue;\n\n }\n\n break;\n\n case INDEX_op_mulu2_i32:\n\n t0 = *tb_ptr++;\n\n t1 = *tb_ptr++;\n\n t2 = tci_read_r32(&tb_ptr);\n\n tmp64 = tci_read_r32(&tb_ptr);\n\n tci_write_reg64(t1, t0, t2 * tmp64);\n\n break;\n\n#endif /* TCG_TARGET_REG_BITS == 32 */\n\n#if TCG_TARGET_HAS_ext8s_i32\n\n case INDEX_op_ext8s_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r8s(&tb_ptr);\n\n tci_write_reg32(t0, t1);\n\n break;\n\n#endif\n\n#if TCG_TARGET_HAS_ext16s_i32\n\n case INDEX_op_ext16s_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r16s(&tb_ptr);\n\n tci_write_reg32(t0, t1);\n\n break;\n\n#endif\n\n#if TCG_TARGET_HAS_ext8u_i32\n\n case INDEX_op_ext8u_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r8(&tb_ptr);\n\n tci_write_reg32(t0, t1);\n\n break;\n\n#endif\n\n#if TCG_TARGET_HAS_ext16u_i32\n\n case INDEX_op_ext16u_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r16(&tb_ptr);\n\n tci_write_reg32(t0, t1);\n\n break;\n\n#endif\n\n#if TCG_TARGET_HAS_bswap16_i32\n\n case INDEX_op_bswap16_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r16(&tb_ptr);\n\n tci_write_reg32(t0, bswap16(t1));\n\n break;\n\n#endif\n\n#if TCG_TARGET_HAS_bswap32_i32\n\n case INDEX_op_bswap32_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r32(&tb_ptr);\n\n tci_write_reg32(t0, bswap32(t1));\n\n break;\n\n#endif\n\n#if TCG_TARGET_HAS_not_i32\n\n case INDEX_op_not_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r32(&tb_ptr);\n\n tci_write_reg32(t0, ~t1);\n\n break;\n\n#endif\n\n#if TCG_TARGET_HAS_neg_i32\n\n case INDEX_op_neg_i32:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r32(&tb_ptr);\n\n tci_write_reg32(t0, -t1);\n\n break;\n\n#endif\n\n#if TCG_TARGET_REG_BITS == 64\n\n case INDEX_op_mov_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r64(&tb_ptr);\n\n tci_write_reg64(t0, t1);\n\n break;\n\n case INDEX_op_movi_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_i64(&tb_ptr);\n\n tci_write_reg64(t0, t1);\n\n break;\n\n\n\n /* Load/store operations (64 bit). */\n\n\n\n case INDEX_op_ld8u_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r(&tb_ptr);\n\n t2 = tci_read_s32(&tb_ptr);\n\n tci_write_reg8(t0, *(uint8_t *)(t1 + t2));\n\n break;\n\n case INDEX_op_ld8s_i64:\n\n case INDEX_op_ld16u_i64:\n\n case INDEX_op_ld16s_i64:\n\n TODO();\n\n break;\n\n case INDEX_op_ld32u_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r(&tb_ptr);\n\n t2 = tci_read_s32(&tb_ptr);\n\n tci_write_reg32(t0, *(uint32_t *)(t1 + t2));\n\n break;\n\n case INDEX_op_ld32s_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r(&tb_ptr);\n\n t2 = tci_read_s32(&tb_ptr);\n\n tci_write_reg32s(t0, *(int32_t *)(t1 + t2));\n\n break;\n\n case INDEX_op_ld_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r(&tb_ptr);\n\n t2 = tci_read_s32(&tb_ptr);\n\n tci_write_reg64(t0, *(uint64_t *)(t1 + t2));\n\n break;\n\n case INDEX_op_st8_i64:\n\n t0 = tci_read_r8(&tb_ptr);\n\n t1 = tci_read_r(&tb_ptr);\n\n t2 = tci_read_s32(&tb_ptr);\n\n *(uint8_t *)(t1 + t2) = t0;\n\n break;\n\n case INDEX_op_st16_i64:\n\n t0 = tci_read_r16(&tb_ptr);\n\n t1 = tci_read_r(&tb_ptr);\n\n t2 = tci_read_s32(&tb_ptr);\n\n *(uint16_t *)(t1 + t2) = t0;\n\n break;\n\n case INDEX_op_st32_i64:\n\n t0 = tci_read_r32(&tb_ptr);\n\n t1 = tci_read_r(&tb_ptr);\n\n t2 = tci_read_s32(&tb_ptr);\n\n *(uint32_t *)(t1 + t2) = t0;\n\n break;\n\n case INDEX_op_st_i64:\n\n t0 = tci_read_r64(&tb_ptr);\n\n t1 = tci_read_r(&tb_ptr);\n\n t2 = tci_read_s32(&tb_ptr);\n\n assert(t1 != sp_value || (int32_t)t2 < 0);\n\n *(uint64_t *)(t1 + t2) = t0;\n\n break;\n\n\n\n /* Arithmetic operations (64 bit). */\n\n\n\n case INDEX_op_add_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri64(&tb_ptr);\n\n t2 = tci_read_ri64(&tb_ptr);\n\n tci_write_reg64(t0, t1 + t2);\n\n break;\n\n case INDEX_op_sub_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri64(&tb_ptr);\n\n t2 = tci_read_ri64(&tb_ptr);\n\n tci_write_reg64(t0, t1 - t2);\n\n break;\n\n case INDEX_op_mul_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri64(&tb_ptr);\n\n t2 = tci_read_ri64(&tb_ptr);\n\n tci_write_reg64(t0, t1 * t2);\n\n break;\n\n#if TCG_TARGET_HAS_div_i64\n\n case INDEX_op_div_i64:\n\n case INDEX_op_divu_i64:\n\n case INDEX_op_rem_i64:\n\n case INDEX_op_remu_i64:\n\n TODO();\n\n break;\n\n#elif TCG_TARGET_HAS_div2_i64\n\n case INDEX_op_div2_i64:\n\n case INDEX_op_divu2_i64:\n\n TODO();\n\n break;\n\n#endif\n\n case INDEX_op_and_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri64(&tb_ptr);\n\n t2 = tci_read_ri64(&tb_ptr);\n\n tci_write_reg64(t0, t1 & t2);\n\n break;\n\n case INDEX_op_or_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri64(&tb_ptr);\n\n t2 = tci_read_ri64(&tb_ptr);\n\n tci_write_reg64(t0, t1 | t2);\n\n break;\n\n case INDEX_op_xor_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri64(&tb_ptr);\n\n t2 = tci_read_ri64(&tb_ptr);\n\n tci_write_reg64(t0, t1 ^ t2);\n\n break;\n\n\n\n /* Shift/rotate operations (64 bit). */\n\n\n\n case INDEX_op_shl_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri64(&tb_ptr);\n\n t2 = tci_read_ri64(&tb_ptr);\n\n tci_write_reg64(t0, t1 << t2);\n\n break;\n\n case INDEX_op_shr_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri64(&tb_ptr);\n\n t2 = tci_read_ri64(&tb_ptr);\n\n tci_write_reg64(t0, t1 >> t2);\n\n break;\n\n case INDEX_op_sar_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri64(&tb_ptr);\n\n t2 = tci_read_ri64(&tb_ptr);\n\n tci_write_reg64(t0, ((int64_t)t1 >> t2));\n\n break;\n\n#if TCG_TARGET_HAS_rot_i64\n\n case INDEX_op_rotl_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri64(&tb_ptr);\n\n t2 = tci_read_ri64(&tb_ptr);\n\n tci_write_reg64(t0, rol64(t1, t2));\n\n break;\n\n case INDEX_op_rotr_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_ri64(&tb_ptr);\n\n t2 = tci_read_ri64(&tb_ptr);\n\n tci_write_reg64(t0, ror64(t1, t2));\n\n break;\n\n#endif\n\n#if TCG_TARGET_HAS_deposit_i64\n\n case INDEX_op_deposit_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r64(&tb_ptr);\n\n t2 = tci_read_r64(&tb_ptr);\n\n tmp16 = *tb_ptr++;\n\n tmp8 = *tb_ptr++;\n\n tmp64 = (((1ULL << tmp8) - 1) << tmp16);\n\n tci_write_reg64(t0, (t1 & ~tmp64) | ((t2 << tmp16) & tmp64));\n\n break;\n\n#endif\n\n case INDEX_op_brcond_i64:\n\n t0 = tci_read_r64(&tb_ptr);\n\n t1 = tci_read_ri64(&tb_ptr);\n\n condition = *tb_ptr++;\n\n label = tci_read_label(&tb_ptr);\n\n if (tci_compare64(t0, t1, condition)) {\n\n assert(tb_ptr == old_code_ptr + op_size);\n\n tb_ptr = (uint8_t *)label;\n\n continue;\n\n }\n\n break;\n\n#if TCG_TARGET_HAS_ext8u_i64\n\n case INDEX_op_ext8u_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r8(&tb_ptr);\n\n tci_write_reg64(t0, t1);\n\n break;\n\n#endif\n\n#if TCG_TARGET_HAS_ext8s_i64\n\n case INDEX_op_ext8s_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r8s(&tb_ptr);\n\n tci_write_reg64(t0, t1);\n\n break;\n\n#endif\n\n#if TCG_TARGET_HAS_ext16s_i64\n\n case INDEX_op_ext16s_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r16s(&tb_ptr);\n\n tci_write_reg64(t0, t1);\n\n break;\n\n#endif\n\n#if TCG_TARGET_HAS_ext16u_i64\n\n case INDEX_op_ext16u_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r16(&tb_ptr);\n\n tci_write_reg64(t0, t1);\n\n break;\n\n#endif\n\n#if TCG_TARGET_HAS_ext32s_i64\n\n case INDEX_op_ext32s_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r32s(&tb_ptr);\n\n tci_write_reg64(t0, t1);\n\n break;\n\n#endif\n\n#if TCG_TARGET_HAS_ext32u_i64\n\n case INDEX_op_ext32u_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r32(&tb_ptr);\n\n tci_write_reg64(t0, t1);\n\n break;\n\n#endif\n\n#if TCG_TARGET_HAS_bswap16_i64\n\n case INDEX_op_bswap16_i64:\n\n TODO();\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r16(&tb_ptr);\n\n tci_write_reg64(t0, bswap16(t1));\n\n break;\n\n#endif\n\n#if TCG_TARGET_HAS_bswap32_i64\n\n case INDEX_op_bswap32_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r32(&tb_ptr);\n\n tci_write_reg64(t0, bswap32(t1));\n\n break;\n\n#endif\n\n#if TCG_TARGET_HAS_bswap64_i64\n\n case INDEX_op_bswap64_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r64(&tb_ptr);\n\n tci_write_reg64(t0, bswap64(t1));\n\n break;\n\n#endif\n\n#if TCG_TARGET_HAS_not_i64\n\n case INDEX_op_not_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r64(&tb_ptr);\n\n tci_write_reg64(t0, ~t1);\n\n break;\n\n#endif\n\n#if TCG_TARGET_HAS_neg_i64\n\n case INDEX_op_neg_i64:\n\n t0 = *tb_ptr++;\n\n t1 = tci_read_r64(&tb_ptr);\n\n tci_write_reg64(t0, -t1);\n\n break;\n\n#endif\n\n#endif /* TCG_TARGET_REG_BITS == 64 */\n\n\n\n /* QEMU specific operations. */\n\n\n\n#if TARGET_LONG_BITS > TCG_TARGET_REG_BITS\n\n case INDEX_op_debug_insn_start:\n\n TODO();\n\n break;\n\n#else\n\n case INDEX_op_debug_insn_start:\n\n TODO();\n\n break;\n\n#endif\n\n case INDEX_op_exit_tb:\n\n next_tb = *(uint64_t *)tb_ptr;\n\n goto exit;\n\n break;\n\n case INDEX_op_goto_tb:\n\n t0 = tci_read_i32(&tb_ptr);\n\n assert(tb_ptr == old_code_ptr + op_size);\n\n tb_ptr += (int32_t)t0;\n\n continue;\n\n case INDEX_op_qemu_ld8u:\n\n t0 = *tb_ptr++;\n\n taddr = tci_read_ulong(&tb_ptr);\n\n#ifdef CONFIG_SOFTMMU\n\n tmp8 = helper_ldb_mmu(env, taddr, tci_read_i(&tb_ptr));\n\n#else\n\n host_addr = (tcg_target_ulong)taddr;\n\n tmp8 = *(uint8_t *)(host_addr + GUEST_BASE);\n\n#endif\n\n tci_write_reg8(t0, tmp8);\n\n break;\n\n case INDEX_op_qemu_ld8s:\n\n t0 = *tb_ptr++;\n\n taddr = tci_read_ulong(&tb_ptr);\n\n#ifdef CONFIG_SOFTMMU\n\n tmp8 = helper_ldb_mmu(env, taddr, tci_read_i(&tb_ptr));\n\n#else\n\n host_addr = (tcg_target_ulong)taddr;\n\n tmp8 = *(uint8_t *)(host_addr + GUEST_BASE);\n\n#endif\n\n tci_write_reg8s(t0, tmp8);\n\n break;\n\n case INDEX_op_qemu_ld16u:\n\n t0 = *tb_ptr++;\n\n taddr = tci_read_ulong(&tb_ptr);\n\n#ifdef CONFIG_SOFTMMU\n\n tmp16 = helper_ldw_mmu(env, taddr, tci_read_i(&tb_ptr));\n\n#else\n\n host_addr = (tcg_target_ulong)taddr;\n\n tmp16 = tswap16(*(uint16_t *)(host_addr + GUEST_BASE));\n\n#endif\n\n tci_write_reg16(t0, tmp16);\n\n break;\n\n case INDEX_op_qemu_ld16s:\n\n t0 = *tb_ptr++;\n\n taddr = tci_read_ulong(&tb_ptr);\n\n#ifdef CONFIG_SOFTMMU\n\n tmp16 = helper_ldw_mmu(env, taddr, tci_read_i(&tb_ptr));\n\n#else\n\n host_addr = (tcg_target_ulong)taddr;\n\n tmp16 = tswap16(*(uint16_t *)(host_addr + GUEST_BASE));\n\n#endif\n\n tci_write_reg16s(t0, tmp16);\n\n break;\n\n#if TCG_TARGET_REG_BITS == 64\n\n case INDEX_op_qemu_ld32u:\n\n t0 = *tb_ptr++;\n\n taddr = tci_read_ulong(&tb_ptr);\n\n#ifdef CONFIG_SOFTMMU\n\n tmp32 = helper_ldl_mmu(env, taddr, tci_read_i(&tb_ptr));\n\n#else\n\n host_addr = (tcg_target_ulong)taddr;\n\n tmp32 = tswap32(*(uint32_t *)(host_addr + GUEST_BASE));\n\n#endif\n\n tci_write_reg32(t0, tmp32);\n\n break;\n\n case INDEX_op_qemu_ld32s:\n\n t0 = *tb_ptr++;\n\n taddr = tci_read_ulong(&tb_ptr);\n\n#ifdef CONFIG_SOFTMMU\n\n tmp32 = helper_ldl_mmu(env, taddr, tci_read_i(&tb_ptr));\n\n#else\n\n host_addr = (tcg_target_ulong)taddr;\n\n tmp32 = tswap32(*(uint32_t *)(host_addr + GUEST_BASE));\n\n#endif\n\n tci_write_reg32s(t0, tmp32);\n\n break;\n\n#endif /* TCG_TARGET_REG_BITS == 64 */\n\n case INDEX_op_qemu_ld32:\n\n t0 = *tb_ptr++;\n\n taddr = tci_read_ulong(&tb_ptr);\n\n#ifdef CONFIG_SOFTMMU\n\n tmp32 = helper_ldl_mmu(env, taddr, tci_read_i(&tb_ptr));\n\n#else\n\n host_addr = (tcg_target_ulong)taddr;\n\n tmp32 = tswap32(*(uint32_t *)(host_addr + GUEST_BASE));\n\n#endif\n\n tci_write_reg32(t0, tmp32);\n\n break;\n\n case INDEX_op_qemu_ld64:\n\n t0 = *tb_ptr++;\n\n#if TCG_TARGET_REG_BITS == 32\n\n t1 = *tb_ptr++;\n\n#endif\n\n taddr = tci_read_ulong(&tb_ptr);\n\n#ifdef CONFIG_SOFTMMU\n\n tmp64 = helper_ldq_mmu(env, taddr, tci_read_i(&tb_ptr));\n\n#else\n\n host_addr = (tcg_target_ulong)taddr;\n\n tmp64 = tswap64(*(uint64_t *)(host_addr + GUEST_BASE));\n\n#endif\n\n tci_write_reg(t0, tmp64);\n\n#if TCG_TARGET_REG_BITS == 32\n\n tci_write_reg(t1, tmp64 >> 32);\n\n#endif\n\n break;\n\n case INDEX_op_qemu_st8:\n\n t0 = tci_read_r8(&tb_ptr);\n\n taddr = tci_read_ulong(&tb_ptr);\n\n#ifdef CONFIG_SOFTMMU\n\n t2 = tci_read_i(&tb_ptr);\n\n helper_stb_mmu(env, taddr, t0, t2);\n\n#else\n\n host_addr = (tcg_target_ulong)taddr;\n\n *(uint8_t *)(host_addr + GUEST_BASE) = t0;\n\n#endif\n\n break;\n\n case INDEX_op_qemu_st16:\n\n t0 = tci_read_r16(&tb_ptr);\n\n taddr = tci_read_ulong(&tb_ptr);\n\n#ifdef CONFIG_SOFTMMU\n\n t2 = tci_read_i(&tb_ptr);\n\n helper_stw_mmu(env, taddr, t0, t2);\n\n#else\n\n host_addr = (tcg_target_ulong)taddr;\n\n *(uint16_t *)(host_addr + GUEST_BASE) = tswap16(t0);\n\n#endif\n\n break;\n\n case INDEX_op_qemu_st32:\n\n t0 = tci_read_r32(&tb_ptr);\n\n taddr = tci_read_ulong(&tb_ptr);\n\n#ifdef CONFIG_SOFTMMU\n\n t2 = tci_read_i(&tb_ptr);\n\n helper_stl_mmu(env, taddr, t0, t2);\n\n#else\n\n host_addr = (tcg_target_ulong)taddr;\n\n *(uint32_t *)(host_addr + GUEST_BASE) = tswap32(t0);\n\n#endif\n\n break;\n\n case INDEX_op_qemu_st64:\n\n tmp64 = tci_read_r64(&tb_ptr);\n\n taddr = tci_read_ulong(&tb_ptr);\n\n#ifdef CONFIG_SOFTMMU\n\n t2 = tci_read_i(&tb_ptr);\n\n helper_stq_mmu(env, taddr, tmp64, t2);\n\n#else\n\n host_addr = (tcg_target_ulong)taddr;\n\n *(uint64_t *)(host_addr + GUEST_BASE) = tswap64(tmp64);\n\n#endif\n\n break;\n\n default:\n\n TODO();\n\n break;\n\n }\n\n assert(tb_ptr == old_code_ptr + op_size);\n\n }\n\nexit:\n\n return next_tb;\n\n}\n", + "output": "1", + "index": 15685 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int ff_h264_decode_slice_header(H264Context *h, H264SliceContext *sl, H264Context *h0)\n\n{\n\n unsigned int first_mb_in_slice;\n\n unsigned int pps_id;\n\n int ret;\n\n unsigned int slice_type, tmp, i, j;\n\n int default_ref_list_done = 0;\n\n int last_pic_structure, last_pic_droppable;\n\n int needs_reinit = 0;\n\n int field_pic_flag, bottom_field_flag;\n\n\n\n h->qpel_put = h->h264qpel.put_h264_qpel_pixels_tab;\n\n h->qpel_avg = h->h264qpel.avg_h264_qpel_pixels_tab;\n\n\n\n first_mb_in_slice = get_ue_golomb(&h->gb);\n\n\n\n if (first_mb_in_slice == 0) { // FIXME better field boundary detection\n\n if (h0->current_slice && h->cur_pic_ptr && FIELD_PICTURE(h)) {\n\n ff_h264_field_end(h, sl, 1);\n\n }\n\n\n\n h0->current_slice = 0;\n\n if (!h0->first_field) {\n\n if (h->cur_pic_ptr && !h->droppable) {\n\n ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,\n\n h->picture_structure == PICT_BOTTOM_FIELD);\n\n }\n\n h->cur_pic_ptr = NULL;\n\n }\n\n }\n\n\n\n slice_type = get_ue_golomb_31(&h->gb);\n\n if (slice_type > 9) {\n\n av_log(h->avctx, AV_LOG_ERROR,\n\n \"slice type %d too large at %d %d\\n\",\n\n slice_type, h->mb_x, h->mb_y);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n if (slice_type > 4) {\n\n slice_type -= 5;\n\n sl->slice_type_fixed = 1;\n\n } else\n\n sl->slice_type_fixed = 0;\n\n\n\n slice_type = golomb_to_pict_type[slice_type];\n\n if (slice_type == AV_PICTURE_TYPE_I ||\n\n (h0->current_slice != 0 && slice_type == h0->last_slice_type)) {\n\n default_ref_list_done = 1;\n\n }\n\n sl->slice_type = slice_type;\n\n sl->slice_type_nos = slice_type & 3;\n\n\n\n if (h->nal_unit_type == NAL_IDR_SLICE &&\n\n sl->slice_type_nos != AV_PICTURE_TYPE_I) {\n\n av_log(h->avctx, AV_LOG_ERROR, \"A non-intra slice in an IDR NAL unit.\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n // to make a few old functions happy, it's wrong though\n\n h->pict_type = sl->slice_type;\n\n\n\n pps_id = get_ue_golomb(&h->gb);\n\n if (pps_id >= MAX_PPS_COUNT) {\n\n av_log(h->avctx, AV_LOG_ERROR, \"pps_id %u out of range\\n\", pps_id);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n if (!h0->pps_buffers[pps_id]) {\n\n av_log(h->avctx, AV_LOG_ERROR,\n\n \"non-existing PPS %u referenced\\n\",\n\n pps_id);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n h->pps = *h0->pps_buffers[pps_id];\n\n\n\n if (!h0->sps_buffers[h->pps.sps_id]) {\n\n av_log(h->avctx, AV_LOG_ERROR,\n\n \"non-existing SPS %u referenced\\n\",\n\n h->pps.sps_id);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n if (h->pps.sps_id != h->sps.sps_id ||\n\n h0->sps_buffers[h->pps.sps_id]->new) {\n\n h0->sps_buffers[h->pps.sps_id]->new = 0;\n\n\n\n h->sps = *h0->sps_buffers[h->pps.sps_id];\n\n\n\n if (h->bit_depth_luma != h->sps.bit_depth_luma ||\n\n h->chroma_format_idc != h->sps.chroma_format_idc) {\n\n h->bit_depth_luma = h->sps.bit_depth_luma;\n\n h->chroma_format_idc = h->sps.chroma_format_idc;\n\n needs_reinit = 1;\n\n }\n\n if ((ret = ff_h264_set_parameter_from_sps(h)) < 0)\n\n return ret;\n\n }\n\n\n\n h->avctx->profile = ff_h264_get_profile(&h->sps);\n\n h->avctx->level = h->sps.level_idc;\n\n h->avctx->refs = h->sps.ref_frame_count;\n\n\n\n if (h->mb_width != h->sps.mb_width ||\n\n h->mb_height != h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag))\n\n needs_reinit = 1;\n\n\n\n h->mb_width = h->sps.mb_width;\n\n h->mb_height = h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag);\n\n h->mb_num = h->mb_width * h->mb_height;\n\n h->mb_stride = h->mb_width + 1;\n\n\n\n h->b_stride = h->mb_width * 4;\n\n\n\n h->chroma_y_shift = h->sps.chroma_format_idc <= 1; // 400 uses yuv420p\n\n\n\n h->width = 16 * h->mb_width;\n\n h->height = 16 * h->mb_height;\n\n\n\n ret = init_dimensions(h);\n\n if (ret < 0)\n\n return ret;\n\n\n\n if (h->sps.video_signal_type_present_flag) {\n\n h->avctx->color_range = h->sps.full_range ? AVCOL_RANGE_JPEG\n\n : AVCOL_RANGE_MPEG;\n\n if (h->sps.colour_description_present_flag) {\n\n if (h->avctx->colorspace != h->sps.colorspace)\n\n needs_reinit = 1;\n\n h->avctx->color_primaries = h->sps.color_primaries;\n\n h->avctx->color_trc = h->sps.color_trc;\n\n h->avctx->colorspace = h->sps.colorspace;\n\n }\n\n }\n\n\n\n if (h->context_initialized && needs_reinit) {\n\n if (h != h0) {\n\n av_log(h->avctx, AV_LOG_ERROR,\n\n \"changing width %d -> %d / height %d -> %d on \"\n\n \"slice %d\\n\",\n\n h->width, h->avctx->coded_width,\n\n h->height, h->avctx->coded_height,\n\n h0->current_slice + 1);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n ff_h264_flush_change(h);\n\n\n\n if ((ret = get_pixel_format(h)) < 0)\n\n return ret;\n\n h->avctx->pix_fmt = ret;\n\n\n\n av_log(h->avctx, AV_LOG_INFO, \"Reinit context to %dx%d, \"\n\n \"pix_fmt: %d\\n\", h->width, h->height, h->avctx->pix_fmt);\n\n\n\n if ((ret = h264_slice_header_init(h, 1)) < 0) {\n\n av_log(h->avctx, AV_LOG_ERROR,\n\n \"h264_slice_header_init() failed\\n\");\n\n return ret;\n\n }\n\n }\n\n if (!h->context_initialized) {\n\n if (h != h0) {\n\n av_log(h->avctx, AV_LOG_ERROR,\n\n \"Cannot (re-)initialize context during parallel decoding.\\n\");\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n\n\n if ((ret = get_pixel_format(h)) < 0)\n\n return ret;\n\n h->avctx->pix_fmt = ret;\n\n\n\n if ((ret = h264_slice_header_init(h, 0)) < 0) {\n\n av_log(h->avctx, AV_LOG_ERROR,\n\n \"h264_slice_header_init() failed\\n\");\n\n return ret;\n\n }\n\n }\n\n\n\n if (h == h0 && h->dequant_coeff_pps != pps_id) {\n\n h->dequant_coeff_pps = pps_id;\n\n h264_init_dequant_tables(h);\n\n }\n\n\n\n h->frame_num = get_bits(&h->gb, h->sps.log2_max_frame_num);\n\n\n\n h->mb_mbaff = 0;\n\n h->mb_aff_frame = 0;\n\n last_pic_structure = h0->picture_structure;\n\n last_pic_droppable = h0->droppable;\n\n h->droppable = h->nal_ref_idc == 0;\n\n if (h->sps.frame_mbs_only_flag) {\n\n h->picture_structure = PICT_FRAME;\n\n } else {\n\n field_pic_flag = get_bits1(&h->gb);\n\n if (field_pic_flag) {\n\n bottom_field_flag = get_bits1(&h->gb);\n\n h->picture_structure = PICT_TOP_FIELD + bottom_field_flag;\n\n } else {\n\n h->picture_structure = PICT_FRAME;\n\n h->mb_aff_frame = h->sps.mb_aff;\n\n }\n\n }\n\n h->mb_field_decoding_flag = h->picture_structure != PICT_FRAME;\n\n\n\n if (h0->current_slice != 0) {\n\n if (last_pic_structure != h->picture_structure ||\n\n last_pic_droppable != h->droppable) {\n\n av_log(h->avctx, AV_LOG_ERROR,\n\n \"Changing field mode (%d -> %d) between slices is not allowed\\n\",\n\n last_pic_structure, h->picture_structure);\n\n h->picture_structure = last_pic_structure;\n\n h->droppable = last_pic_droppable;\n\n return AVERROR_INVALIDDATA;\n\n } else if (!h0->cur_pic_ptr) {\n\n av_log(h->avctx, AV_LOG_ERROR,\n\n \"unset cur_pic_ptr on slice %d\\n\",\n\n h0->current_slice + 1);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n } else {\n\n /* Shorten frame num gaps so we don't have to allocate reference\n\n * frames just to throw them away */\n\n if (h->frame_num != h->prev_frame_num) {\n\n int unwrap_prev_frame_num = h->prev_frame_num;\n\n int max_frame_num = 1 << h->sps.log2_max_frame_num;\n\n\n\n if (unwrap_prev_frame_num > h->frame_num)\n\n unwrap_prev_frame_num -= max_frame_num;\n\n\n\n if ((h->frame_num - unwrap_prev_frame_num) > h->sps.ref_frame_count) {\n\n unwrap_prev_frame_num = (h->frame_num - h->sps.ref_frame_count) - 1;\n\n if (unwrap_prev_frame_num < 0)\n\n unwrap_prev_frame_num += max_frame_num;\n\n\n\n h->prev_frame_num = unwrap_prev_frame_num;\n\n }\n\n }\n\n\n\n /* See if we have a decoded first field looking for a pair...\n\n * Here, we're using that to see if we should mark previously\n\n * decode frames as \"finished\".\n\n * We have to do that before the \"dummy\" in-between frame allocation,\n\n * since that can modify s->current_picture_ptr. */\n\n if (h0->first_field) {\n\n assert(h0->cur_pic_ptr);\n\n assert(h0->cur_pic_ptr->f.buf[0]);\n\n assert(h0->cur_pic_ptr->reference != DELAYED_PIC_REF);\n\n\n\n /* figure out if we have a complementary field pair */\n\n if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {\n\n /* Previous field is unmatched. Don't display it, but let it\n\n * remain for reference if marked as such. */\n\n if (!last_pic_droppable && last_pic_structure != PICT_FRAME) {\n\n ff_thread_report_progress(&h0->cur_pic_ptr->tf, INT_MAX,\n\n last_pic_structure == PICT_TOP_FIELD);\n\n }\n\n } else {\n\n if (h0->cur_pic_ptr->frame_num != h->frame_num) {\n\n /* This and previous field were reference, but had\n\n * different frame_nums. Consider this field first in\n\n * pair. Throw away previous field except for reference\n\n * purposes. */\n\n if (!last_pic_droppable && last_pic_structure != PICT_FRAME) {\n\n ff_thread_report_progress(&h0->cur_pic_ptr->tf, INT_MAX,\n\n last_pic_structure == PICT_TOP_FIELD);\n\n }\n\n } else {\n\n /* Second field in complementary pair */\n\n if (!((last_pic_structure == PICT_TOP_FIELD &&\n\n h->picture_structure == PICT_BOTTOM_FIELD) ||\n\n (last_pic_structure == PICT_BOTTOM_FIELD &&\n\n h->picture_structure == PICT_TOP_FIELD))) {\n\n av_log(h->avctx, AV_LOG_ERROR,\n\n \"Invalid field mode combination %d/%d\\n\",\n\n last_pic_structure, h->picture_structure);\n\n h->picture_structure = last_pic_structure;\n\n h->droppable = last_pic_droppable;\n\n return AVERROR_INVALIDDATA;\n\n } else if (last_pic_droppable != h->droppable) {\n\n avpriv_request_sample(h->avctx,\n\n \"Found reference and non-reference fields in the same frame, which\");\n\n h->picture_structure = last_pic_structure;\n\n h->droppable = last_pic_droppable;\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n }\n\n }\n\n }\n\n\n\n while (h->frame_num != h->prev_frame_num &&\n\n h->frame_num != (h->prev_frame_num + 1) % (1 << h->sps.log2_max_frame_num)) {\n\n H264Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;\n\n av_log(h->avctx, AV_LOG_DEBUG, \"Frame num gap %d %d\\n\",\n\n h->frame_num, h->prev_frame_num);\n\n ret = h264_frame_start(h);\n\n if (ret < 0) {\n\n h0->first_field = 0;\n\n return ret;\n\n }\n\n\n\n h->prev_frame_num++;\n\n h->prev_frame_num %= 1 << h->sps.log2_max_frame_num;\n\n h->cur_pic_ptr->frame_num = h->prev_frame_num;\n\n ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);\n\n ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);\n\n ret = ff_generate_sliding_window_mmcos(h, 1);\n\n if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))\n\n return ret;\n\n ret = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);\n\n if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))\n\n return ret;\n\n /* Error concealment: If a ref is missing, copy the previous ref\n\n * in its place.\n\n * FIXME: Avoiding a memcpy would be nice, but ref handling makes\n\n * many assumptions about there being no actual duplicates.\n\n * FIXME: This does not copy padding for out-of-frame motion\n\n * vectors. Given we are concealing a lost frame, this probably\n\n * is not noticeable by comparison, but it should be fixed. */\n\n if (h->short_ref_count) {\n\n if (prev) {\n\n av_image_copy(h->short_ref[0]->f.data,\n\n h->short_ref[0]->f.linesize,\n\n (const uint8_t **)prev->f.data,\n\n prev->f.linesize,\n\n h->avctx->pix_fmt,\n\n h->mb_width * 16,\n\n h->mb_height * 16);\n\n h->short_ref[0]->poc = prev->poc + 2;\n\n }\n\n h->short_ref[0]->frame_num = h->prev_frame_num;\n\n }\n\n }\n\n\n\n /* See if we have a decoded first field looking for a pair...\n\n * We're using that to see whether to continue decoding in that\n\n * frame, or to allocate a new one. */\n\n if (h0->first_field) {\n\n assert(h0->cur_pic_ptr);\n\n assert(h0->cur_pic_ptr->f.buf[0]);\n\n assert(h0->cur_pic_ptr->reference != DELAYED_PIC_REF);\n\n\n\n /* figure out if we have a complementary field pair */\n\n if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {\n\n /* Previous field is unmatched. Don't display it, but let it\n\n * remain for reference if marked as such. */\n\n h0->cur_pic_ptr = NULL;\n\n h0->first_field = FIELD_PICTURE(h);\n\n } else {\n\n if (h0->cur_pic_ptr->frame_num != h->frame_num) {\n\n /* This and the previous field had different frame_nums.\n\n * Consider this field first in pair. Throw away previous\n\n * one except for reference purposes. */\n\n h0->first_field = 1;\n\n h0->cur_pic_ptr = NULL;\n\n } else {\n\n /* Second field in complementary pair */\n\n h0->first_field = 0;\n\n }\n\n }\n\n } else {\n\n /* Frame or first field in a potentially complementary pair */\n\n h0->first_field = FIELD_PICTURE(h);\n\n }\n\n\n\n if (!FIELD_PICTURE(h) || h0->first_field) {\n\n if (h264_frame_start(h) < 0) {\n\n h0->first_field = 0;\n\n return AVERROR_INVALIDDATA;\n\n }\n\n } else {\n\n release_unused_pictures(h, 0);\n\n }\n\n }\n\n if (h != h0 && (ret = clone_slice(h, h0)) < 0)\n\n return ret;\n\n\n\n h->cur_pic_ptr->frame_num = h->frame_num; // FIXME frame_num cleanup\n\n\n\n assert(h->mb_num == h->mb_width * h->mb_height);\n\n if (first_mb_in_slice << FIELD_OR_MBAFF_PICTURE(h) >= h->mb_num ||\n\n first_mb_in_slice >= h->mb_num) {\n\n av_log(h->avctx, AV_LOG_ERROR, \"first_mb_in_slice overflow\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n h->resync_mb_x = h->mb_x = first_mb_in_slice % h->mb_width;\n\n h->resync_mb_y = h->mb_y = (first_mb_in_slice / h->mb_width) <<\n\n FIELD_OR_MBAFF_PICTURE(h);\n\n if (h->picture_structure == PICT_BOTTOM_FIELD)\n\n h->resync_mb_y = h->mb_y = h->mb_y + 1;\n\n assert(h->mb_y < h->mb_height);\n\n\n\n if (h->picture_structure == PICT_FRAME) {\n\n h->curr_pic_num = h->frame_num;\n\n h->max_pic_num = 1 << h->sps.log2_max_frame_num;\n\n } else {\n\n h->curr_pic_num = 2 * h->frame_num + 1;\n\n h->max_pic_num = 1 << (h->sps.log2_max_frame_num + 1);\n\n }\n\n\n\n if (h->nal_unit_type == NAL_IDR_SLICE)\n\n get_ue_golomb(&h->gb); /* idr_pic_id */\n\n\n\n if (h->sps.poc_type == 0) {\n\n h->poc_lsb = get_bits(&h->gb, h->sps.log2_max_poc_lsb);\n\n\n\n if (h->pps.pic_order_present == 1 && h->picture_structure == PICT_FRAME)\n\n h->delta_poc_bottom = get_se_golomb(&h->gb);\n\n }\n\n\n\n if (h->sps.poc_type == 1 && !h->sps.delta_pic_order_always_zero_flag) {\n\n h->delta_poc[0] = get_se_golomb(&h->gb);\n\n\n\n if (h->pps.pic_order_present == 1 && h->picture_structure == PICT_FRAME)\n\n h->delta_poc[1] = get_se_golomb(&h->gb);\n\n }\n\n\n\n ff_init_poc(h, h->cur_pic_ptr->field_poc, &h->cur_pic_ptr->poc);\n\n\n\n if (h->pps.redundant_pic_cnt_present)\n\n h->redundant_pic_count = get_ue_golomb(&h->gb);\n\n\n\n ret = ff_set_ref_count(h, sl);\n\n if (ret < 0)\n\n return ret;\n\n else if (ret == 1)\n\n default_ref_list_done = 0;\n\n\n\n if (!default_ref_list_done)\n\n ff_h264_fill_default_ref_list(h, sl);\n\n\n\n if (sl->slice_type_nos != AV_PICTURE_TYPE_I) {\n\n ret = ff_h264_decode_ref_pic_list_reordering(h, sl);\n\n if (ret < 0) {\n\n sl->ref_count[1] = sl->ref_count[0] = 0;\n\n return ret;\n\n }\n\n }\n\n\n\n if ((h->pps.weighted_pred && sl->slice_type_nos == AV_PICTURE_TYPE_P) ||\n\n (h->pps.weighted_bipred_idc == 1 &&\n\n sl->slice_type_nos == AV_PICTURE_TYPE_B))\n\n ff_pred_weight_table(h, sl);\n\n else if (h->pps.weighted_bipred_idc == 2 &&\n\n sl->slice_type_nos == AV_PICTURE_TYPE_B) {\n\n implicit_weight_table(h, sl, -1);\n\n } else {\n\n sl->use_weight = 0;\n\n for (i = 0; i < 2; i++) {\n\n sl->luma_weight_flag[i] = 0;\n\n sl->chroma_weight_flag[i] = 0;\n\n }\n\n }\n\n\n\n // If frame-mt is enabled, only update mmco tables for the first slice\n\n // in a field. Subsequent slices can temporarily clobber h->mmco_index\n\n // or h->mmco, which will cause ref list mix-ups and decoding errors\n\n // further down the line. This may break decoding if the first slice is\n\n // corrupt, thus we only do this if frame-mt is enabled.\n\n if (h->nal_ref_idc) {\n\n ret = ff_h264_decode_ref_pic_marking(h0, &h->gb,\n\n !(h->avctx->active_thread_type & FF_THREAD_FRAME) ||\n\n h0->current_slice == 0);\n\n if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n if (FRAME_MBAFF(h)) {\n\n ff_h264_fill_mbaff_ref_list(h, sl);\n\n\n\n if (h->pps.weighted_bipred_idc == 2 && sl->slice_type_nos == AV_PICTURE_TYPE_B) {\n\n implicit_weight_table(h, sl, 0);\n\n implicit_weight_table(h, sl, 1);\n\n }\n\n }\n\n\n\n if (sl->slice_type_nos == AV_PICTURE_TYPE_B && !sl->direct_spatial_mv_pred)\n\n ff_h264_direct_dist_scale_factor(h, sl);\n\n ff_h264_direct_ref_list_init(h, sl);\n\n\n\n if (sl->slice_type_nos != AV_PICTURE_TYPE_I && h->pps.cabac) {\n\n tmp = get_ue_golomb_31(&h->gb);\n\n if (tmp > 2) {\n\n av_log(h->avctx, AV_LOG_ERROR, \"cabac_init_idc %u overflow\\n\", tmp);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n h->cabac_init_idc = tmp;\n\n }\n\n\n\n sl->last_qscale_diff = 0;\n\n tmp = h->pps.init_qp + get_se_golomb(&h->gb);\n\n if (tmp > 51 + 6 * (h->sps.bit_depth_luma - 8)) {\n\n av_log(h->avctx, AV_LOG_ERROR, \"QP %u out of range\\n\", tmp);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n sl->qscale = tmp;\n\n sl->chroma_qp[0] = get_chroma_qp(h, 0, sl->qscale);\n\n sl->chroma_qp[1] = get_chroma_qp(h, 1, sl->qscale);\n\n // FIXME qscale / qp ... stuff\n\n if (sl->slice_type == AV_PICTURE_TYPE_SP)\n\n get_bits1(&h->gb); /* sp_for_switch_flag */\n\n if (sl->slice_type == AV_PICTURE_TYPE_SP ||\n\n sl->slice_type == AV_PICTURE_TYPE_SI)\n\n get_se_golomb(&h->gb); /* slice_qs_delta */\n\n\n\n h->deblocking_filter = 1;\n\n h->slice_alpha_c0_offset = 0;\n\n h->slice_beta_offset = 0;\n\n if (h->pps.deblocking_filter_parameters_present) {\n\n tmp = get_ue_golomb_31(&h->gb);\n\n if (tmp > 2) {\n\n av_log(h->avctx, AV_LOG_ERROR,\n\n \"deblocking_filter_idc %u out of range\\n\", tmp);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n h->deblocking_filter = tmp;\n\n if (h->deblocking_filter < 2)\n\n h->deblocking_filter ^= 1; // 1<->0\n\n\n\n if (h->deblocking_filter) {\n\n h->slice_alpha_c0_offset = get_se_golomb(&h->gb) * 2;\n\n h->slice_beta_offset = get_se_golomb(&h->gb) * 2;\n\n if (h->slice_alpha_c0_offset > 12 ||\n\n h->slice_alpha_c0_offset < -12 ||\n\n h->slice_beta_offset > 12 ||\n\n h->slice_beta_offset < -12) {\n\n av_log(h->avctx, AV_LOG_ERROR,\n\n \"deblocking filter parameters %d %d out of range\\n\",\n\n h->slice_alpha_c0_offset, h->slice_beta_offset);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n }\n\n }\n\n\n\n if (h->avctx->skip_loop_filter >= AVDISCARD_ALL ||\n\n (h->avctx->skip_loop_filter >= AVDISCARD_NONKEY &&\n\n sl->slice_type_nos != AV_PICTURE_TYPE_I) ||\n\n (h->avctx->skip_loop_filter >= AVDISCARD_BIDIR &&\n\n sl->slice_type_nos == AV_PICTURE_TYPE_B) ||\n\n (h->avctx->skip_loop_filter >= AVDISCARD_NONREF &&\n\n h->nal_ref_idc == 0))\n\n h->deblocking_filter = 0;\n\n\n\n if (h->deblocking_filter == 1 && h0->max_contexts > 1) {\n\n if (h->avctx->flags2 & CODEC_FLAG2_FAST) {\n\n /* Cheat slightly for speed:\n\n * Do not bother to deblock across slices. */\n\n h->deblocking_filter = 2;\n\n } else {\n\n h0->max_contexts = 1;\n\n if (!h0->single_decode_warning) {\n\n av_log(h->avctx, AV_LOG_INFO,\n\n \"Cannot parallelize deblocking type 1, decoding such frames in sequential order\\n\");\n\n h0->single_decode_warning = 1;\n\n }\n\n if (h != h0) {\n\n av_log(h->avctx, AV_LOG_ERROR,\n\n \"Deblocking switched inside frame.\\n\");\n\n return 1;\n\n }\n\n }\n\n }\n\n sl->qp_thresh = 15 -\n\n FFMIN(h->slice_alpha_c0_offset, h->slice_beta_offset) -\n\n FFMAX3(0,\n\n h->pps.chroma_qp_index_offset[0],\n\n h->pps.chroma_qp_index_offset[1]) +\n\n 6 * (h->sps.bit_depth_luma - 8);\n\n\n\n h0->last_slice_type = slice_type;\n\n sl->slice_num = ++h0->current_slice;\n\n if (sl->slice_num >= MAX_SLICES) {\n\n av_log(h->avctx, AV_LOG_ERROR,\n\n \"Too many slices, increase MAX_SLICES and recompile\\n\");\n\n }\n\n\n\n for (j = 0; j < 2; j++) {\n\n int id_list[16];\n\n int *ref2frm = sl->ref2frm[sl->slice_num & (MAX_SLICES - 1)][j];\n\n for (i = 0; i < 16; i++) {\n\n id_list[i] = 60;\n\n if (j < sl->list_count && i < sl->ref_count[j] &&\n\n sl->ref_list[j][i].f.buf[0]) {\n\n int k;\n\n AVBuffer *buf = sl->ref_list[j][i].f.buf[0]->buffer;\n\n for (k = 0; k < h->short_ref_count; k++)\n\n if (h->short_ref[k]->f.buf[0]->buffer == buf) {\n\n id_list[i] = k;\n\n break;\n\n }\n\n for (k = 0; k < h->long_ref_count; k++)\n\n if (h->long_ref[k] && h->long_ref[k]->f.buf[0]->buffer == buf) {\n\n id_list[i] = h->short_ref_count + k;\n\n break;\n\n }\n\n }\n\n }\n\n\n\n ref2frm[0] =\n\n ref2frm[1] = -1;\n\n for (i = 0; i < 16; i++)\n\n ref2frm[i + 2] = 4 * id_list[i] + (sl->ref_list[j][i].reference & 3);\n\n ref2frm[18 + 0] =\n\n ref2frm[18 + 1] = -1;\n\n for (i = 16; i < 48; i++)\n\n ref2frm[i + 4] = 4 * id_list[(i - 16) >> 1] +\n\n (sl->ref_list[j][i].reference & 3);\n\n }\n\n\n\n if (h->avctx->debug & FF_DEBUG_PICT_INFO) {\n\n av_log(h->avctx, AV_LOG_DEBUG,\n\n \"slice:%d %s mb:%d %c%s%s pps:%u frame:%d poc:%d/%d ref:%d/%d qp:%d loop:%d:%d:%d weight:%d%s %s\\n\",\n\n sl->slice_num,\n\n (h->picture_structure == PICT_FRAME ? \"F\" : h->picture_structure == PICT_TOP_FIELD ? \"T\" : \"B\"),\n\n first_mb_in_slice,\n\n av_get_picture_type_char(sl->slice_type),\n\n sl->slice_type_fixed ? \" fix\" : \"\",\n\n h->nal_unit_type == NAL_IDR_SLICE ? \" IDR\" : \"\",\n\n pps_id, h->frame_num,\n\n h->cur_pic_ptr->field_poc[0],\n\n h->cur_pic_ptr->field_poc[1],\n\n sl->ref_count[0], sl->ref_count[1],\n\n sl->qscale,\n\n h->deblocking_filter,\n\n h->slice_alpha_c0_offset, h->slice_beta_offset,\n\n sl->use_weight,\n\n sl->use_weight == 1 && sl->use_weight_chroma ? \"c\" : \"\",\n\n sl->slice_type == AV_PICTURE_TYPE_B ? (sl->direct_spatial_mv_pred ? \"SPAT\" : \"TEMP\") : \"\");\n\n }\n\n\n\n return 0;\n\n}\n", + "output": "0", + "index": 25938 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int decode_mips16_opc (CPUState *env, DisasContext *ctx,\n\n int *is_branch)\n\n{\n\n int rx, ry;\n\n int sa;\n\n int op, cnvt_op, op1, offset;\n\n int funct;\n\n int n_bytes;\n\n\n\n op = (ctx->opcode >> 11) & 0x1f;\n\n sa = (ctx->opcode >> 2) & 0x7;\n\n sa = sa == 0 ? 8 : sa;\n\n rx = xlat((ctx->opcode >> 8) & 0x7);\n\n cnvt_op = (ctx->opcode >> 5) & 0x7;\n\n ry = xlat((ctx->opcode >> 5) & 0x7);\n\n op1 = offset = ctx->opcode & 0x1f;\n\n\n\n n_bytes = 2;\n\n\n\n switch (op) {\n\n case M16_OPC_ADDIUSP:\n\n {\n\n int16_t imm = ((uint8_t) ctx->opcode) << 2;\n\n\n\n gen_arith_imm(env, ctx, OPC_ADDIU, rx, 29, imm);\n\n }\n\n break;\n\n case M16_OPC_ADDIUPC:\n\n gen_addiupc(ctx, rx, ((uint8_t) ctx->opcode) << 2, 0, 0);\n\n break;\n\n case M16_OPC_B:\n\n offset = (ctx->opcode & 0x7ff) << 1;\n\n offset = (int16_t)(offset << 4) >> 4;\n\n gen_compute_branch(ctx, OPC_BEQ, 2, 0, 0, offset);\n\n /* No delay slot, so just process as a normal instruction */\n\n break;\n\n case M16_OPC_JAL:\n\n offset = lduw_code(ctx->pc + 2);\n\n offset = (((ctx->opcode & 0x1f) << 21)\n\n | ((ctx->opcode >> 5) & 0x1f) << 16\n\n | offset) << 2;\n\n op = ((ctx->opcode >> 10) & 0x1) ? OPC_JALX : OPC_JAL;\n\n gen_compute_branch(ctx, op, 4, rx, ry, offset);\n\n n_bytes = 4;\n\n *is_branch = 1;\n\n break;\n\n case M16_OPC_BEQZ:\n\n gen_compute_branch(ctx, OPC_BEQ, 2, rx, 0, ((int8_t)ctx->opcode) << 1);\n\n /* No delay slot, so just process as a normal instruction */\n\n break;\n\n case M16_OPC_BNEQZ:\n\n gen_compute_branch(ctx, OPC_BNE, 2, rx, 0, ((int8_t)ctx->opcode) << 1);\n\n /* No delay slot, so just process as a normal instruction */\n\n break;\n\n case M16_OPC_SHIFT:\n\n switch (ctx->opcode & 0x3) {\n\n case 0x0:\n\n gen_shift_imm(env, ctx, OPC_SLL, rx, ry, sa);\n\n break;\n\n case 0x1:\n\n#if defined(TARGET_MIPS64)\n\n check_mips_64(ctx);\n\n gen_shift_imm(env, ctx, OPC_DSLL, rx, ry, sa);\n\n#else\n\n generate_exception(ctx, EXCP_RI);\n\n#endif\n\n break;\n\n case 0x2:\n\n gen_shift_imm(env, ctx, OPC_SRL, rx, ry, sa);\n\n break;\n\n case 0x3:\n\n gen_shift_imm(env, ctx, OPC_SRA, rx, ry, sa);\n\n break;\n\n }\n\n break;\n\n#if defined(TARGET_MIPS64)\n\n case M16_OPC_LD:\n\n check_mips_64(ctx);\n\n gen_ldst(ctx, OPC_LD, ry, rx, offset << 3);\n\n break;\n\n#endif\n\n case M16_OPC_RRIA:\n\n {\n\n int16_t imm = (int8_t)((ctx->opcode & 0xf) << 4) >> 4;\n\n\n\n if ((ctx->opcode >> 4) & 1) {\n\n#if defined(TARGET_MIPS64)\n\n check_mips_64(ctx);\n\n gen_arith_imm(env, ctx, OPC_DADDIU, ry, rx, imm);\n\n#else\n\n generate_exception(ctx, EXCP_RI);\n\n#endif\n\n } else {\n\n gen_arith_imm(env, ctx, OPC_ADDIU, ry, rx, imm);\n\n }\n\n }\n\n break;\n\n case M16_OPC_ADDIU8:\n\n {\n\n int16_t imm = (int8_t) ctx->opcode;\n\n\n\n gen_arith_imm(env, ctx, OPC_ADDIU, rx, rx, imm);\n\n }\n\n break;\n\n case M16_OPC_SLTI:\n\n {\n\n int16_t imm = (uint8_t) ctx->opcode;\n\n\n\n gen_slt_imm(env, OPC_SLTI, 24, rx, imm);\n\n }\n\n break;\n\n case M16_OPC_SLTIU:\n\n {\n\n int16_t imm = (uint8_t) ctx->opcode;\n\n\n\n gen_slt_imm(env, OPC_SLTIU, 24, rx, imm);\n\n }\n\n break;\n\n case M16_OPC_I8:\n\n {\n\n int reg32;\n\n\n\n funct = (ctx->opcode >> 8) & 0x7;\n\n switch (funct) {\n\n case I8_BTEQZ:\n\n gen_compute_branch(ctx, OPC_BEQ, 2, 24, 0,\n\n ((int8_t)ctx->opcode) << 1);\n\n break;\n\n case I8_BTNEZ:\n\n gen_compute_branch(ctx, OPC_BNE, 2, 24, 0,\n\n ((int8_t)ctx->opcode) << 1);\n\n break;\n\n case I8_SWRASP:\n\n gen_ldst(ctx, OPC_SW, 31, 29, (ctx->opcode & 0xff) << 2);\n\n break;\n\n case I8_ADJSP:\n\n gen_arith_imm(env, ctx, OPC_ADDIU, 29, 29,\n\n ((int8_t)ctx->opcode) << 3);\n\n break;\n\n case I8_SVRS:\n\n {\n\n int do_ra = ctx->opcode & (1 << 6);\n\n int do_s0 = ctx->opcode & (1 << 5);\n\n int do_s1 = ctx->opcode & (1 << 4);\n\n int framesize = ctx->opcode & 0xf;\n\n\n\n if (framesize == 0) {\n\n framesize = 128;\n\n } else {\n\n framesize = framesize << 3;\n\n }\n\n\n\n if (ctx->opcode & (1 << 7)) {\n\n gen_mips16_save(ctx, 0, 0,\n\n do_ra, do_s0, do_s1, framesize);\n\n } else {\n\n gen_mips16_restore(ctx, 0, 0,\n\n do_ra, do_s0, do_s1, framesize);\n\n }\n\n }\n\n break;\n\n case I8_MOV32R:\n\n {\n\n int rz = xlat(ctx->opcode & 0x7);\n\n\n\n reg32 = (((ctx->opcode >> 3) & 0x3) << 3) |\n\n ((ctx->opcode >> 5) & 0x7);\n\n gen_arith(env, ctx, OPC_ADDU, reg32, rz, 0);\n\n }\n\n break;\n\n case I8_MOVR32:\n\n reg32 = ctx->opcode & 0x1f;\n\n gen_arith(env, ctx, OPC_ADDU, ry, reg32, 0);\n\n break;\n\n default:\n\n generate_exception(ctx, EXCP_RI);\n\n break;\n\n }\n\n }\n\n break;\n\n case M16_OPC_LI:\n\n {\n\n int16_t imm = (uint8_t) ctx->opcode;\n\n\n\n gen_arith_imm(env, ctx, OPC_ADDIU, rx, 0, imm);\n\n }\n\n break;\n\n case M16_OPC_CMPI:\n\n {\n\n int16_t imm = (uint8_t) ctx->opcode;\n\n\n\n gen_logic_imm(env, OPC_XORI, 24, rx, imm);\n\n }\n\n break;\n\n#if defined(TARGET_MIPS64)\n\n case M16_OPC_SD:\n\n check_mips_64(ctx);\n\n gen_ldst(ctx, OPC_SD, ry, rx, offset << 3);\n\n break;\n\n#endif\n\n case M16_OPC_LB:\n\n gen_ldst(ctx, OPC_LB, ry, rx, offset);\n\n break;\n\n case M16_OPC_LH:\n\n gen_ldst(ctx, OPC_LH, ry, rx, offset << 1);\n\n break;\n\n case M16_OPC_LWSP:\n\n gen_ldst(ctx, OPC_LW, rx, 29, ((uint8_t)ctx->opcode) << 2);\n\n break;\n\n case M16_OPC_LW:\n\n gen_ldst(ctx, OPC_LW, ry, rx, offset << 2);\n\n break;\n\n case M16_OPC_LBU:\n\n gen_ldst(ctx, OPC_LBU, ry, rx, offset);\n\n break;\n\n case M16_OPC_LHU:\n\n gen_ldst(ctx, OPC_LHU, ry, rx, offset << 1);\n\n break;\n\n case M16_OPC_LWPC:\n\n gen_ldst(ctx, OPC_LWPC, rx, 0, ((uint8_t)ctx->opcode) << 2);\n\n break;\n\n#if defined (TARGET_MIPS64)\n\n case M16_OPC_LWU:\n\n check_mips_64(ctx);\n\n gen_ldst(ctx, OPC_LWU, ry, rx, offset << 2);\n\n break;\n\n#endif\n\n case M16_OPC_SB:\n\n gen_ldst(ctx, OPC_SB, ry, rx, offset);\n\n break;\n\n case M16_OPC_SH:\n\n gen_ldst(ctx, OPC_SH, ry, rx, offset << 1);\n\n break;\n\n case M16_OPC_SWSP:\n\n gen_ldst(ctx, OPC_SW, rx, 29, ((uint8_t)ctx->opcode) << 2);\n\n break;\n\n case M16_OPC_SW:\n\n gen_ldst(ctx, OPC_SW, ry, rx, offset << 2);\n\n break;\n\n case M16_OPC_RRR:\n\n {\n\n int rz = xlat((ctx->opcode >> 2) & 0x7);\n\n int mips32_op;\n\n\n\n switch (ctx->opcode & 0x3) {\n\n case RRR_ADDU:\n\n mips32_op = OPC_ADDU;\n\n break;\n\n case RRR_SUBU:\n\n mips32_op = OPC_SUBU;\n\n break;\n\n#if defined(TARGET_MIPS64)\n\n case RRR_DADDU:\n\n mips32_op = OPC_DADDU;\n\n check_mips_64(ctx);\n\n break;\n\n case RRR_DSUBU:\n\n mips32_op = OPC_DSUBU;\n\n check_mips_64(ctx);\n\n break;\n\n#endif\n\n default:\n\n generate_exception(ctx, EXCP_RI);\n\n goto done;\n\n }\n\n\n\n gen_arith(env, ctx, mips32_op, rz, rx, ry);\n\n done:\n\n ;\n\n }\n\n break;\n\n case M16_OPC_RR:\n\n switch (op1) {\n\n case RR_JR:\n\n {\n\n int nd = (ctx->opcode >> 7) & 0x1;\n\n int link = (ctx->opcode >> 6) & 0x1;\n\n int ra = (ctx->opcode >> 5) & 0x1;\n\n\n\n if (link) {\n\n op = nd ? OPC_JALRC : OPC_JALR;\n\n } else {\n\n op = OPC_JR;\n\n }\n\n\n\n gen_compute_branch(ctx, op, 2, ra ? 31 : rx, 31, 0);\n\n if (!nd) {\n\n *is_branch = 1;\n\n }\n\n }\n\n break;\n\n case RR_SDBBP:\n\n /* XXX: not clear which exception should be raised\n\n * when in debug mode...\n\n */\n\n check_insn(env, ctx, ISA_MIPS32);\n\n if (!(ctx->hflags & MIPS_HFLAG_DM)) {\n\n generate_exception(ctx, EXCP_DBp);\n\n } else {\n\n generate_exception(ctx, EXCP_DBp);\n\n }\n\n break;\n\n case RR_SLT:\n\n gen_slt(env, OPC_SLT, 24, rx, ry);\n\n break;\n\n case RR_SLTU:\n\n gen_slt(env, OPC_SLTU, 24, rx, ry);\n\n break;\n\n case RR_BREAK:\n\n generate_exception(ctx, EXCP_BREAK);\n\n break;\n\n case RR_SLLV:\n\n gen_shift(env, ctx, OPC_SLLV, ry, rx, ry);\n\n break;\n\n case RR_SRLV:\n\n gen_shift(env, ctx, OPC_SRLV, ry, rx, ry);\n\n break;\n\n case RR_SRAV:\n\n gen_shift(env, ctx, OPC_SRAV, ry, rx, ry);\n\n break;\n\n#if defined (TARGET_MIPS64)\n\n case RR_DSRL:\n\n check_mips_64(ctx);\n\n gen_shift_imm(env, ctx, OPC_DSRL, ry, ry, sa);\n\n break;\n\n#endif\n\n case RR_CMP:\n\n gen_logic(env, OPC_XOR, 24, rx, ry);\n\n break;\n\n case RR_NEG:\n\n gen_arith(env, ctx, OPC_SUBU, rx, 0, ry);\n\n break;\n\n case RR_AND:\n\n gen_logic(env, OPC_AND, rx, rx, ry);\n\n break;\n\n case RR_OR:\n\n gen_logic(env, OPC_OR, rx, rx, ry);\n\n break;\n\n case RR_XOR:\n\n gen_logic(env, OPC_XOR, rx, rx, ry);\n\n break;\n\n case RR_NOT:\n\n gen_logic(env, OPC_NOR, rx, ry, 0);\n\n break;\n\n case RR_MFHI:\n\n gen_HILO(ctx, OPC_MFHI, rx);\n\n break;\n\n case RR_CNVT:\n\n switch (cnvt_op) {\n\n case RR_RY_CNVT_ZEB:\n\n tcg_gen_ext8u_tl(cpu_gpr[rx], cpu_gpr[rx]);\n\n break;\n\n case RR_RY_CNVT_ZEH:\n\n tcg_gen_ext16u_tl(cpu_gpr[rx], cpu_gpr[rx]);\n\n break;\n\n case RR_RY_CNVT_SEB:\n\n tcg_gen_ext8s_tl(cpu_gpr[rx], cpu_gpr[rx]);\n\n break;\n\n case RR_RY_CNVT_SEH:\n\n tcg_gen_ext16s_tl(cpu_gpr[rx], cpu_gpr[rx]);\n\n break;\n\n#if defined (TARGET_MIPS64)\n\n case RR_RY_CNVT_ZEW:\n\n check_mips_64(ctx);\n\n tcg_gen_ext32u_tl(cpu_gpr[rx], cpu_gpr[rx]);\n\n break;\n\n case RR_RY_CNVT_SEW:\n\n check_mips_64(ctx);\n\n tcg_gen_ext32s_tl(cpu_gpr[rx], cpu_gpr[rx]);\n\n break;\n\n#endif\n\n default:\n\n generate_exception(ctx, EXCP_RI);\n\n break;\n\n }\n\n break;\n\n case RR_MFLO:\n\n gen_HILO(ctx, OPC_MFLO, rx);\n\n break;\n\n#if defined (TARGET_MIPS64)\n\n case RR_DSRA:\n\n check_mips_64(ctx);\n\n gen_shift_imm(env, ctx, OPC_DSRA, ry, ry, sa);\n\n break;\n\n case RR_DSLLV:\n\n check_mips_64(ctx);\n\n gen_shift(env, ctx, OPC_DSLLV, ry, rx, ry);\n\n break;\n\n case RR_DSRLV:\n\n check_mips_64(ctx);\n\n gen_shift(env, ctx, OPC_DSRLV, ry, rx, ry);\n\n break;\n\n case RR_DSRAV:\n\n check_mips_64(ctx);\n\n gen_shift(env, ctx, OPC_DSRAV, ry, rx, ry);\n\n break;\n\n#endif\n\n case RR_MULT:\n\n gen_muldiv(ctx, OPC_MULT, rx, ry);\n\n break;\n\n case RR_MULTU:\n\n gen_muldiv(ctx, OPC_MULTU, rx, ry);\n\n break;\n\n case RR_DIV:\n\n gen_muldiv(ctx, OPC_DIV, rx, ry);\n\n break;\n\n case RR_DIVU:\n\n gen_muldiv(ctx, OPC_DIVU, rx, ry);\n\n break;\n\n#if defined (TARGET_MIPS64)\n\n case RR_DMULT:\n\n check_mips_64(ctx);\n\n gen_muldiv(ctx, OPC_DMULT, rx, ry);\n\n break;\n\n case RR_DMULTU:\n\n check_mips_64(ctx);\n\n gen_muldiv(ctx, OPC_DMULTU, rx, ry);\n\n break;\n\n case RR_DDIV:\n\n check_mips_64(ctx);\n\n gen_muldiv(ctx, OPC_DDIV, rx, ry);\n\n break;\n\n case RR_DDIVU:\n\n check_mips_64(ctx);\n\n gen_muldiv(ctx, OPC_DDIVU, rx, ry);\n\n break;\n\n#endif\n\n default:\n\n generate_exception(ctx, EXCP_RI);\n\n break;\n\n }\n\n break;\n\n case M16_OPC_EXTEND:\n\n decode_extended_mips16_opc(env, ctx, is_branch);\n\n n_bytes = 4;\n\n break;\n\n#if defined(TARGET_MIPS64)\n\n case M16_OPC_I64:\n\n funct = (ctx->opcode >> 8) & 0x7;\n\n decode_i64_mips16(env, ctx, ry, funct, offset, 0);\n\n break;\n\n#endif\n\n default:\n\n generate_exception(ctx, EXCP_RI);\n\n break;\n\n }\n\n\n\n return n_bytes;\n\n}\n", + "output": "0", + "index": 27050 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "void ff_h264_pred_init_x86(H264PredContext *h, int codec_id, const int bit_depth, const int chroma_format_idc)\n\n{\n\n#if HAVE_YASM\n\n int mm_flags = av_get_cpu_flags();\n\n\n\n if (bit_depth == 8) {\n\n if (mm_flags & AV_CPU_FLAG_MMX) {\n\n h->pred16x16[VERT_PRED8x8 ] = ff_pred16x16_vertical_mmx;\n\n h->pred16x16[HOR_PRED8x8 ] = ff_pred16x16_horizontal_mmx;\n\n if (chroma_format_idc == 1) {\n\n h->pred8x8 [VERT_PRED8x8 ] = ff_pred8x8_vertical_mmx;\n\n h->pred8x8 [HOR_PRED8x8 ] = ff_pred8x8_horizontal_mmx;\n\n }\n\n if (codec_id == AV_CODEC_ID_VP8) {\n\n h->pred16x16[PLANE_PRED8x8 ] = ff_pred16x16_tm_vp8_mmx;\n\n h->pred8x8 [PLANE_PRED8x8 ] = ff_pred8x8_tm_vp8_mmx;\n\n h->pred4x4 [TM_VP8_PRED ] = ff_pred4x4_tm_vp8_mmx;\n\n } else {\n\n if (chroma_format_idc == 1)\n\n h->pred8x8 [PLANE_PRED8x8] = ff_pred8x8_plane_mmx;\n\n if (codec_id == AV_CODEC_ID_SVQ3) {\n\n if (mm_flags & AV_CPU_FLAG_CMOV)\n\n h->pred16x16[PLANE_PRED8x8] = ff_pred16x16_plane_svq3_mmx;\n\n } else if (codec_id == AV_CODEC_ID_RV40) {\n\n h->pred16x16[PLANE_PRED8x8] = ff_pred16x16_plane_rv40_mmx;\n\n } else {\n\n h->pred16x16[PLANE_PRED8x8] = ff_pred16x16_plane_h264_mmx;\n\n }\n\n }\n\n }\n\n\n\n if (mm_flags & AV_CPU_FLAG_MMXEXT) {\n\n h->pred16x16[HOR_PRED8x8 ] = ff_pred16x16_horizontal_mmx2;\n\n h->pred16x16[DC_PRED8x8 ] = ff_pred16x16_dc_mmx2;\n\n if (chroma_format_idc == 1)\n\n h->pred8x8[HOR_PRED8x8 ] = ff_pred8x8_horizontal_mmx2;\n\n h->pred8x8l [TOP_DC_PRED ] = ff_pred8x8l_top_dc_mmxext;\n\n h->pred8x8l [DC_PRED ] = ff_pred8x8l_dc_mmxext;\n\n h->pred8x8l [HOR_PRED ] = ff_pred8x8l_horizontal_mmxext;\n\n h->pred8x8l [VERT_PRED ] = ff_pred8x8l_vertical_mmxext;\n\n h->pred8x8l [DIAG_DOWN_RIGHT_PRED ] = ff_pred8x8l_down_right_mmxext;\n\n h->pred8x8l [VERT_RIGHT_PRED ] = ff_pred8x8l_vertical_right_mmxext;\n\n h->pred8x8l [HOR_UP_PRED ] = ff_pred8x8l_horizontal_up_mmxext;\n\n h->pred8x8l [DIAG_DOWN_LEFT_PRED ] = ff_pred8x8l_down_left_mmxext;\n\n h->pred8x8l [HOR_DOWN_PRED ] = ff_pred8x8l_horizontal_down_mmxext;\n\n h->pred4x4 [DIAG_DOWN_RIGHT_PRED ] = ff_pred4x4_down_right_mmxext;\n\n h->pred4x4 [VERT_RIGHT_PRED ] = ff_pred4x4_vertical_right_mmxext;\n\n h->pred4x4 [HOR_DOWN_PRED ] = ff_pred4x4_horizontal_down_mmxext;\n\n h->pred4x4 [DC_PRED ] = ff_pred4x4_dc_mmxext;\n\n if (codec_id == AV_CODEC_ID_VP8 || codec_id == AV_CODEC_ID_H264) {\n\n h->pred4x4 [DIAG_DOWN_LEFT_PRED] = ff_pred4x4_down_left_mmxext;\n\n }\n\n if (codec_id == AV_CODEC_ID_SVQ3 || codec_id == AV_CODEC_ID_H264) {\n\n h->pred4x4 [VERT_LEFT_PRED ] = ff_pred4x4_vertical_left_mmxext;\n\n }\n\n if (codec_id != AV_CODEC_ID_RV40) {\n\n h->pred4x4 [HOR_UP_PRED ] = ff_pred4x4_horizontal_up_mmxext;\n\n }\n\n if (codec_id == AV_CODEC_ID_SVQ3 || codec_id == AV_CODEC_ID_H264) {\n\n if (chroma_format_idc == 1) {\n\n h->pred8x8[TOP_DC_PRED8x8 ] = ff_pred8x8_top_dc_mmxext;\n\n h->pred8x8[DC_PRED8x8 ] = ff_pred8x8_dc_mmxext;\n\n }\n\n }\n\n if (codec_id == AV_CODEC_ID_VP8) {\n\n h->pred16x16[PLANE_PRED8x8 ] = ff_pred16x16_tm_vp8_mmx2;\n\n h->pred8x8 [DC_PRED8x8 ] = ff_pred8x8_dc_rv40_mmxext;\n\n h->pred8x8 [PLANE_PRED8x8 ] = ff_pred8x8_tm_vp8_mmx2;\n\n h->pred4x4 [TM_VP8_PRED ] = ff_pred4x4_tm_vp8_mmx2;\n\n h->pred4x4 [VERT_PRED ] = ff_pred4x4_vertical_vp8_mmxext;\n\n } else {\n\n if (chroma_format_idc == 1)\n\n h->pred8x8 [PLANE_PRED8x8] = ff_pred8x8_plane_mmx2;\n\n if (codec_id == AV_CODEC_ID_SVQ3) {\n\n h->pred16x16[PLANE_PRED8x8 ] = ff_pred16x16_plane_svq3_mmx2;\n\n } else if (codec_id == AV_CODEC_ID_RV40) {\n\n h->pred16x16[PLANE_PRED8x8 ] = ff_pred16x16_plane_rv40_mmx2;\n\n } else {\n\n h->pred16x16[PLANE_PRED8x8 ] = ff_pred16x16_plane_h264_mmx2;\n\n }\n\n }\n\n }\n\n\n\n if (mm_flags & AV_CPU_FLAG_SSE) {\n\n h->pred16x16[VERT_PRED8x8] = ff_pred16x16_vertical_sse;\n\n }\n\n\n\n if (mm_flags & AV_CPU_FLAG_SSE2) {\n\n h->pred16x16[DC_PRED8x8 ] = ff_pred16x16_dc_sse2;\n\n h->pred8x8l [DIAG_DOWN_LEFT_PRED ] = ff_pred8x8l_down_left_sse2;\n\n h->pred8x8l [DIAG_DOWN_RIGHT_PRED ] = ff_pred8x8l_down_right_sse2;\n\n h->pred8x8l [VERT_RIGHT_PRED ] = ff_pred8x8l_vertical_right_sse2;\n\n h->pred8x8l [VERT_LEFT_PRED ] = ff_pred8x8l_vertical_left_sse2;\n\n h->pred8x8l [HOR_DOWN_PRED ] = ff_pred8x8l_horizontal_down_sse2;\n\n if (codec_id == AV_CODEC_ID_VP8) {\n\n h->pred16x16[PLANE_PRED8x8 ] = ff_pred16x16_tm_vp8_sse2;\n\n h->pred8x8 [PLANE_PRED8x8 ] = ff_pred8x8_tm_vp8_sse2;\n\n } else {\n\n if (chroma_format_idc == 1)\n\n h->pred8x8 [PLANE_PRED8x8] = ff_pred8x8_plane_sse2;\n\n if (codec_id == AV_CODEC_ID_SVQ3) {\n\n h->pred16x16[PLANE_PRED8x8] = ff_pred16x16_plane_svq3_sse2;\n\n } else if (codec_id == AV_CODEC_ID_RV40) {\n\n h->pred16x16[PLANE_PRED8x8] = ff_pred16x16_plane_rv40_sse2;\n\n } else {\n\n h->pred16x16[PLANE_PRED8x8] = ff_pred16x16_plane_h264_sse2;\n\n }\n\n }\n\n }\n\n\n\n if (mm_flags & AV_CPU_FLAG_SSSE3) {\n\n h->pred16x16[HOR_PRED8x8 ] = ff_pred16x16_horizontal_ssse3;\n\n h->pred16x16[DC_PRED8x8 ] = ff_pred16x16_dc_ssse3;\n\n if (chroma_format_idc == 1)\n\n h->pred8x8 [HOR_PRED8x8 ] = ff_pred8x8_horizontal_ssse3;\n\n h->pred8x8l [TOP_DC_PRED ] = ff_pred8x8l_top_dc_ssse3;\n\n h->pred8x8l [DC_PRED ] = ff_pred8x8l_dc_ssse3;\n\n h->pred8x8l [HOR_PRED ] = ff_pred8x8l_horizontal_ssse3;\n\n h->pred8x8l [VERT_PRED ] = ff_pred8x8l_vertical_ssse3;\n\n h->pred8x8l [DIAG_DOWN_LEFT_PRED ] = ff_pred8x8l_down_left_ssse3;\n\n h->pred8x8l [DIAG_DOWN_RIGHT_PRED ] = ff_pred8x8l_down_right_ssse3;\n\n h->pred8x8l [VERT_RIGHT_PRED ] = ff_pred8x8l_vertical_right_ssse3;\n\n h->pred8x8l [VERT_LEFT_PRED ] = ff_pred8x8l_vertical_left_ssse3;\n\n h->pred8x8l [HOR_UP_PRED ] = ff_pred8x8l_horizontal_up_ssse3;\n\n h->pred8x8l [HOR_DOWN_PRED ] = ff_pred8x8l_horizontal_down_ssse3;\n\n if (codec_id == AV_CODEC_ID_VP8) {\n\n h->pred8x8 [PLANE_PRED8x8 ] = ff_pred8x8_tm_vp8_ssse3;\n\n h->pred4x4 [TM_VP8_PRED ] = ff_pred4x4_tm_vp8_ssse3;\n\n } else {\n\n if (chroma_format_idc == 1)\n\n h->pred8x8 [PLANE_PRED8x8] = ff_pred8x8_plane_ssse3;\n\n if (codec_id == AV_CODEC_ID_SVQ3) {\n\n h->pred16x16[PLANE_PRED8x8] = ff_pred16x16_plane_svq3_ssse3;\n\n } else if (codec_id == AV_CODEC_ID_RV40) {\n\n h->pred16x16[PLANE_PRED8x8] = ff_pred16x16_plane_rv40_ssse3;\n\n } else {\n\n h->pred16x16[PLANE_PRED8x8] = ff_pred16x16_plane_h264_ssse3;\n\n }\n\n }\n\n }\n\n } else if (bit_depth == 10) {\n\n if (mm_flags & AV_CPU_FLAG_MMXEXT) {\n\n h->pred4x4[DC_PRED ] = ff_pred4x4_dc_10_mmxext;\n\n h->pred4x4[HOR_UP_PRED ] = ff_pred4x4_horizontal_up_10_mmxext;\n\n\n\n if (chroma_format_idc == 1)\n\n h->pred8x8[DC_PRED8x8 ] = ff_pred8x8_dc_10_mmxext;\n\n\n\n h->pred8x8l[DC_128_PRED ] = ff_pred8x8l_128_dc_10_mmxext;\n\n\n\n h->pred16x16[DC_PRED8x8 ] = ff_pred16x16_dc_10_mmxext;\n\n h->pred16x16[TOP_DC_PRED8x8 ] = ff_pred16x16_top_dc_10_mmxext;\n\n h->pred16x16[DC_128_PRED8x8 ] = ff_pred16x16_128_dc_10_mmxext;\n\n h->pred16x16[LEFT_DC_PRED8x8 ] = ff_pred16x16_left_dc_10_mmxext;\n\n h->pred16x16[VERT_PRED8x8 ] = ff_pred16x16_vertical_10_mmxext;\n\n h->pred16x16[HOR_PRED8x8 ] = ff_pred16x16_horizontal_10_mmxext;\n\n }\n\n if (mm_flags & AV_CPU_FLAG_SSE2) {\n\n h->pred4x4[DIAG_DOWN_LEFT_PRED ] = ff_pred4x4_down_left_10_sse2;\n\n h->pred4x4[DIAG_DOWN_RIGHT_PRED] = ff_pred4x4_down_right_10_sse2;\n\n h->pred4x4[VERT_LEFT_PRED ] = ff_pred4x4_vertical_left_10_sse2;\n\n h->pred4x4[VERT_RIGHT_PRED ] = ff_pred4x4_vertical_right_10_sse2;\n\n h->pred4x4[HOR_DOWN_PRED ] = ff_pred4x4_horizontal_down_10_sse2;\n\n\n\n if (chroma_format_idc == 1) {\n\n h->pred8x8[DC_PRED8x8 ] = ff_pred8x8_dc_10_sse2;\n\n h->pred8x8[TOP_DC_PRED8x8 ] = ff_pred8x8_top_dc_10_sse2;\n\n h->pred8x8[PLANE_PRED8x8 ] = ff_pred8x8_plane_10_sse2;\n\n h->pred8x8[VERT_PRED8x8 ] = ff_pred8x8_vertical_10_sse2;\n\n h->pred8x8[HOR_PRED8x8 ] = ff_pred8x8_horizontal_10_sse2;\n\n }\n\n\n\n h->pred8x8l[VERT_PRED ] = ff_pred8x8l_vertical_10_sse2;\n\n h->pred8x8l[HOR_PRED ] = ff_pred8x8l_horizontal_10_sse2;\n\n h->pred8x8l[DC_PRED ] = ff_pred8x8l_dc_10_sse2;\n\n h->pred8x8l[DC_128_PRED ] = ff_pred8x8l_128_dc_10_sse2;\n\n h->pred8x8l[TOP_DC_PRED ] = ff_pred8x8l_top_dc_10_sse2;\n\n h->pred8x8l[DIAG_DOWN_LEFT_PRED ] = ff_pred8x8l_down_left_10_sse2;\n\n h->pred8x8l[DIAG_DOWN_RIGHT_PRED] = ff_pred8x8l_down_right_10_sse2;\n\n h->pred8x8l[VERT_RIGHT_PRED ] = ff_pred8x8l_vertical_right_10_sse2;\n\n h->pred8x8l[HOR_UP_PRED ] = ff_pred8x8l_horizontal_up_10_sse2;\n\n\n\n h->pred16x16[DC_PRED8x8 ] = ff_pred16x16_dc_10_sse2;\n\n h->pred16x16[TOP_DC_PRED8x8 ] = ff_pred16x16_top_dc_10_sse2;\n\n h->pred16x16[DC_128_PRED8x8 ] = ff_pred16x16_128_dc_10_sse2;\n\n h->pred16x16[LEFT_DC_PRED8x8 ] = ff_pred16x16_left_dc_10_sse2;\n\n h->pred16x16[VERT_PRED8x8 ] = ff_pred16x16_vertical_10_sse2;\n\n h->pred16x16[HOR_PRED8x8 ] = ff_pred16x16_horizontal_10_sse2;\n\n }\n\n if (mm_flags & AV_CPU_FLAG_SSSE3) {\n\n h->pred4x4[DIAG_DOWN_RIGHT_PRED] = ff_pred4x4_down_right_10_ssse3;\n\n h->pred4x4[VERT_RIGHT_PRED ] = ff_pred4x4_vertical_right_10_ssse3;\n\n h->pred4x4[HOR_DOWN_PRED ] = ff_pred4x4_horizontal_down_10_ssse3;\n\n\n\n h->pred8x8l[HOR_PRED ] = ff_pred8x8l_horizontal_10_ssse3;\n\n h->pred8x8l[DIAG_DOWN_LEFT_PRED ] = ff_pred8x8l_down_left_10_ssse3;\n\n h->pred8x8l[DIAG_DOWN_RIGHT_PRED] = ff_pred8x8l_down_right_10_ssse3;\n\n h->pred8x8l[VERT_RIGHT_PRED ] = ff_pred8x8l_vertical_right_10_ssse3;\n\n h->pred8x8l[HOR_UP_PRED ] = ff_pred8x8l_horizontal_up_10_ssse3;\n\n }\n\n#if HAVE_AVX\n\n if (mm_flags & AV_CPU_FLAG_AVX) {\n\n h->pred4x4[DIAG_DOWN_LEFT_PRED ] = ff_pred4x4_down_left_10_avx;\n\n h->pred4x4[DIAG_DOWN_RIGHT_PRED] = ff_pred4x4_down_right_10_avx;\n\n h->pred4x4[VERT_LEFT_PRED ] = ff_pred4x4_vertical_left_10_avx;\n\n h->pred4x4[VERT_RIGHT_PRED ] = ff_pred4x4_vertical_right_10_avx;\n\n h->pred4x4[HOR_DOWN_PRED ] = ff_pred4x4_horizontal_down_10_avx;\n\n\n\n h->pred8x8l[VERT_PRED ] = ff_pred8x8l_vertical_10_avx;\n\n h->pred8x8l[HOR_PRED ] = ff_pred8x8l_horizontal_10_avx;\n\n h->pred8x8l[DC_PRED ] = ff_pred8x8l_dc_10_avx;\n\n h->pred8x8l[TOP_DC_PRED ] = ff_pred8x8l_top_dc_10_avx;\n\n h->pred8x8l[DIAG_DOWN_RIGHT_PRED] = ff_pred8x8l_down_right_10_avx;\n\n h->pred8x8l[DIAG_DOWN_LEFT_PRED ] = ff_pred8x8l_down_left_10_avx;\n\n h->pred8x8l[VERT_RIGHT_PRED ] = ff_pred8x8l_vertical_right_10_avx;\n\n h->pred8x8l[HOR_UP_PRED ] = ff_pred8x8l_horizontal_up_10_avx;\n\n }\n\n#endif /* HAVE_AVX */\n\n }\n\n#endif /* HAVE_YASM */\n\n}\n", + "output": "0", + "index": 20008 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void ppc_prep_init(MachineState *machine)\n\n{\n\n ram_addr_t ram_size = machine->ram_size;\n\n const char *kernel_filename = machine->kernel_filename;\n\n const char *kernel_cmdline = machine->kernel_cmdline;\n\n const char *initrd_filename = machine->initrd_filename;\n\n const char *boot_device = machine->boot_order;\n\n MemoryRegion *sysmem = get_system_memory();\n\n PowerPCCPU *cpu = NULL;\n\n CPUPPCState *env = NULL;\n\n Nvram *m48t59;\n\n#if 0\n\n MemoryRegion *xcsr = g_new(MemoryRegion, 1);\n\n#endif\n\n int linux_boot, i, nb_nics1;\n\n MemoryRegion *ram = g_new(MemoryRegion, 1);\n\n uint32_t kernel_base, initrd_base;\n\n long kernel_size, initrd_size;\n\n DeviceState *dev;\n\n PCIHostState *pcihost;\n\n PCIBus *pci_bus;\n\n PCIDevice *pci;\n\n ISABus *isa_bus;\n\n ISADevice *isa;\n\n int ppc_boot_device;\n\n DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];\n\n\n\n sysctrl = g_malloc0(sizeof(sysctrl_t));\n\n\n\n linux_boot = (kernel_filename != NULL);\n\n\n\n /* init CPUs */\n\n if (machine->cpu_model == NULL)\n\n machine->cpu_model = \"602\";\n\n for (i = 0; i < smp_cpus; i++) {\n\n cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU,\n\n machine->cpu_model));\n\n if (cpu == NULL) {\n\n fprintf(stderr, \"Unable to find PowerPC CPU definition\\n\");\n\n exit(1);\n\n }\n\n env = &cpu->env;\n\n\n\n if (env->flags & POWERPC_FLAG_RTC_CLK) {\n\n /* POWER / PowerPC 601 RTC clock frequency is 7.8125 MHz */\n\n cpu_ppc_tb_init(env, 7812500UL);\n\n } else {\n\n /* Set time-base frequency to 100 Mhz */\n\n cpu_ppc_tb_init(env, 100UL * 1000UL * 1000UL);\n\n }\n\n qemu_register_reset(ppc_prep_reset, cpu);\n\n }\n\n\n\n /* allocate RAM */\n\n memory_region_allocate_system_memory(ram, NULL, \"ppc_prep.ram\", ram_size);\n\n memory_region_add_subregion(sysmem, 0, ram);\n\n\n\n if (linux_boot) {\n\n kernel_base = KERNEL_LOAD_ADDR;\n\n /* now we can load the kernel */\n\n kernel_size = load_image_targphys(kernel_filename, kernel_base,\n\n ram_size - kernel_base);\n\n if (kernel_size < 0) {\n\n error_report(\"could not load kernel '%s'\", kernel_filename);\n\n exit(1);\n\n }\n\n /* load initrd */\n\n if (initrd_filename) {\n\n initrd_base = INITRD_LOAD_ADDR;\n\n initrd_size = load_image_targphys(initrd_filename, initrd_base,\n\n ram_size - initrd_base);\n\n if (initrd_size < 0) {\n\n error_report(\"could not load initial ram disk '%s'\",\n\n initrd_filename);\n\n exit(1);\n\n }\n\n } else {\n\n initrd_base = 0;\n\n initrd_size = 0;\n\n }\n\n ppc_boot_device = 'm';\n\n } else {\n\n kernel_base = 0;\n\n kernel_size = 0;\n\n initrd_base = 0;\n\n initrd_size = 0;\n\n ppc_boot_device = '\\0';\n\n /* For now, OHW cannot boot from the network. */\n\n for (i = 0; boot_device[i] != '\\0'; i++) {\n\n if (boot_device[i] >= 'a' && boot_device[i] <= 'f') {\n\n ppc_boot_device = boot_device[i];\n\n break;\n\n }\n\n }\n\n if (ppc_boot_device == '\\0') {\n\n fprintf(stderr, \"No valid boot device for Mac99 machine\\n\");\n\n exit(1);\n\n }\n\n }\n\n\n\n if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {\n\n error_report(\"Only 6xx bus is supported on PREP machine\");\n\n exit(1);\n\n }\n\n\n\n dev = qdev_create(NULL, \"raven-pcihost\");\n\n if (bios_name == NULL) {\n\n bios_name = BIOS_FILENAME;\n\n }\n\n qdev_prop_set_string(dev, \"bios-name\", bios_name);\n\n qdev_prop_set_uint32(dev, \"elf-machine\", PPC_ELF_MACHINE);\n\n pcihost = PCI_HOST_BRIDGE(dev);\n\n object_property_add_child(qdev_get_machine(), \"raven\", OBJECT(dev), NULL);\n\n qdev_init_nofail(dev);\n\n pci_bus = (PCIBus *)qdev_get_child_bus(dev, \"pci.0\");\n\n if (pci_bus == NULL) {\n\n fprintf(stderr, \"Couldn't create PCI host controller.\\n\");\n\n exit(1);\n\n }\n\n sysctrl->contiguous_map_irq = qdev_get_gpio_in(dev, 0);\n\n\n\n /* PCI -> ISA bridge */\n\n pci = pci_create_simple(pci_bus, PCI_DEVFN(1, 0), \"i82378\");\n\n cpu = POWERPC_CPU(first_cpu);\n\n qdev_connect_gpio_out(&pci->qdev, 0,\n\n cpu->env.irq_inputs[PPC6xx_INPUT_INT]);\n\n sysbus_connect_irq(&pcihost->busdev, 0, qdev_get_gpio_in(&pci->qdev, 9));\n\n sysbus_connect_irq(&pcihost->busdev, 1, qdev_get_gpio_in(&pci->qdev, 11));\n\n sysbus_connect_irq(&pcihost->busdev, 2, qdev_get_gpio_in(&pci->qdev, 9));\n\n sysbus_connect_irq(&pcihost->busdev, 3, qdev_get_gpio_in(&pci->qdev, 11));\n\n isa_bus = ISA_BUS(qdev_get_child_bus(DEVICE(pci), \"isa.0\"));\n\n\n\n /* Super I/O (parallel + serial ports) */\n\n isa = isa_create(isa_bus, TYPE_PC87312);\n\n dev = DEVICE(isa);\n\n qdev_prop_set_uint8(dev, \"config\", 13); /* fdc, ser0, ser1, par0 */\n\n qdev_init_nofail(dev);\n\n\n\n /* init basic PC hardware */\n\n pci_vga_init(pci_bus);\n\n\n\n nb_nics1 = nb_nics;\n\n if (nb_nics1 > NE2000_NB_MAX)\n\n nb_nics1 = NE2000_NB_MAX;\n\n for(i = 0; i < nb_nics1; i++) {\n\n if (nd_table[i].model == NULL) {\n\n\t nd_table[i].model = g_strdup(\"ne2k_isa\");\n\n }\n\n if (strcmp(nd_table[i].model, \"ne2k_isa\") == 0) {\n\n isa_ne2000_init(isa_bus, ne2000_io[i], ne2000_irq[i],\n\n &nd_table[i]);\n\n } else {\n\n pci_nic_init_nofail(&nd_table[i], pci_bus, \"ne2k_pci\", NULL);\n\n }\n\n }\n\n\n\n ide_drive_get(hd, ARRAY_SIZE(hd));\n\n for(i = 0; i < MAX_IDE_BUS; i++) {\n\n isa_ide_init(isa_bus, ide_iobase[i], ide_iobase2[i], ide_irq[i],\n\n hd[2 * i],\n\n\t\t hd[2 * i + 1]);\n\n }\n\n isa_create_simple(isa_bus, \"i8042\");\n\n\n\n cpu = POWERPC_CPU(first_cpu);\n\n sysctrl->reset_irq = cpu->env.irq_inputs[PPC6xx_INPUT_HRESET];\n\n\n\n portio_list_init(&prep_port_list, NULL, prep_portio_list, sysctrl, \"prep\");\n\n portio_list_add(&prep_port_list, isa_address_space_io(isa), 0x0);\n\n\n\n /* PowerPC control and status register group */\n\n#if 0\n\n memory_region_init_io(xcsr, NULL, &PPC_XCSR_ops, NULL, \"ppc-xcsr\", 0x1000);\n\n memory_region_add_subregion(sysmem, 0xFEFF0000, xcsr);\n\n#endif\n\n\n\n if (machine_usb(machine)) {\n\n pci_create_simple(pci_bus, -1, \"pci-ohci\");\n\n }\n\n\n\n m48t59 = m48t59_init_isa(isa_bus, 0x0074, NVRAM_SIZE, 2000, 59);\n\n if (m48t59 == NULL)\n\n return;\n\n sysctrl->nvram = m48t59;\n\n\n\n /* Initialise NVRAM */\n\n PPC_NVRAM_set_params(m48t59, NVRAM_SIZE, \"PREP\", ram_size,\n\n ppc_boot_device,\n\n kernel_base, kernel_size,\n\n kernel_cmdline,\n\n initrd_base, initrd_size,\n\n /* XXX: need an option to load a NVRAM image */\n\n 0,\n\n graphic_width, graphic_height, graphic_depth);\n\n}\n", + "output": "1", + "index": 12779 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void imx_eth_write(void *opaque, hwaddr offset, uint64_t value,\n\n unsigned size)\n\n{\n\n IMXFECState *s = IMX_FEC(opaque);\n\n uint32_t index = offset >> 2;\n\n\n\n FEC_PRINTF(\"reg[%s] <= 0x%\" PRIx32 \"\\n\", imx_eth_reg_name(s, index),\n\n (uint32_t)value);\n\n\n\n switch (index) {\n\n case ENET_EIR:\n\n s->regs[index] &= ~value;\n\n break;\n\n case ENET_EIMR:\n\n s->regs[index] = value;\n\n break;\n\n case ENET_RDAR:\n\n if (s->regs[ENET_ECR] & ENET_ECR_ETHEREN) {\n\n if (!s->regs[index]) {\n\n s->regs[index] = ENET_RDAR_RDAR;\n\n imx_eth_enable_rx(s);\n\n }\n\n } else {\n\n s->regs[index] = 0;\n\n }\n\n break;\n\n case ENET_TDAR:\n\n if (s->regs[ENET_ECR] & ENET_ECR_ETHEREN) {\n\n s->regs[index] = ENET_TDAR_TDAR;\n\n imx_eth_do_tx(s);\n\n }\n\n s->regs[index] = 0;\n\n break;\n\n case ENET_ECR:\n\n if (value & ENET_ECR_RESET) {\n\n return imx_eth_reset(DEVICE(s));\n\n }\n\n s->regs[index] = value;\n\n if ((s->regs[index] & ENET_ECR_ETHEREN) == 0) {\n\n s->regs[ENET_RDAR] = 0;\n\n s->rx_descriptor = s->regs[ENET_RDSR];\n\n s->regs[ENET_TDAR] = 0;\n\n s->tx_descriptor = s->regs[ENET_TDSR];\n\n }\n\n break;\n\n case ENET_MMFR:\n\n s->regs[index] = value;\n\n if (extract32(value, 29, 1)) {\n\n /* This is a read operation */\n\n s->regs[ENET_MMFR] = deposit32(s->regs[ENET_MMFR], 0, 16,\n\n do_phy_read(s,\n\n extract32(value,\n\n 18, 10)));\n\n } else {\n\n /* This a write operation */\n\n do_phy_write(s, extract32(value, 18, 10), extract32(value, 0, 16));\n\n }\n\n /* raise the interrupt as the PHY operation is done */\n\n s->regs[ENET_EIR] |= ENET_INT_MII;\n\n break;\n\n case ENET_MSCR:\n\n s->regs[index] = value & 0xfe;\n\n break;\n\n case ENET_MIBC:\n\n /* TODO: Implement MIB. */\n\n s->regs[index] = (value & 0x80000000) ? 0xc0000000 : 0;\n\n break;\n\n case ENET_RCR:\n\n s->regs[index] = value & 0x07ff003f;\n\n /* TODO: Implement LOOP mode. */\n\n break;\n\n case ENET_TCR:\n\n /* We transmit immediately, so raise GRA immediately. */\n\n s->regs[index] = value;\n\n if (value & 1) {\n\n s->regs[ENET_EIR] |= ENET_INT_GRA;\n\n }\n\n break;\n\n case ENET_PALR:\n\n s->regs[index] = value;\n\n s->conf.macaddr.a[0] = value >> 24;\n\n s->conf.macaddr.a[1] = value >> 16;\n\n s->conf.macaddr.a[2] = value >> 8;\n\n s->conf.macaddr.a[3] = value;\n\n break;\n\n case ENET_PAUR:\n\n s->regs[index] = (value | 0x0000ffff) & 0xffff8808;\n\n s->conf.macaddr.a[4] = value >> 24;\n\n s->conf.macaddr.a[5] = value >> 16;\n\n break;\n\n case ENET_OPD:\n\n s->regs[index] = (value & 0x0000ffff) | 0x00010000;\n\n break;\n\n case ENET_IAUR:\n\n case ENET_IALR:\n\n case ENET_GAUR:\n\n case ENET_GALR:\n\n /* TODO: implement MAC hash filtering. */\n\n break;\n\n case ENET_TFWR:\n\n if (s->is_fec) {\n\n s->regs[index] = value & 0x3;\n\n } else {\n\n s->regs[index] = value & 0x13f;\n\n }\n\n break;\n\n case ENET_RDSR:\n\n if (s->is_fec) {\n\n s->regs[index] = value & ~3;\n\n } else {\n\n s->regs[index] = value & ~7;\n\n }\n\n s->rx_descriptor = s->regs[index];\n\n break;\n\n case ENET_TDSR:\n\n if (s->is_fec) {\n\n s->regs[index] = value & ~3;\n\n } else {\n\n s->regs[index] = value & ~7;\n\n }\n\n s->tx_descriptor = s->regs[index];\n\n break;\n\n case ENET_MRBR:\n\n s->regs[index] = value & 0x00003ff0;\n\n break;\n\n default:\n\n if (s->is_fec) {\n\n imx_fec_write(s, index, value);\n\n } else {\n\n imx_enet_write(s, index, value);\n\n }\n\n return;\n\n }\n\n\n\n imx_eth_update(s);\n\n}\n", + "output": "1", + "index": 4376 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int ff_jpeg2000_init_component(Jpeg2000Component *comp,\n\n Jpeg2000CodingStyle *codsty,\n\n Jpeg2000QuantStyle *qntsty,\n\n int cbps, int dx, int dy,\n\n AVCodecContext *avctx)\n\n{\n\n uint8_t log2_band_prec_width, log2_band_prec_height;\n\n int reslevelno, bandno, gbandno = 0, ret, i, j;\n\n uint32_t csize = 1;\n\n\n\n if (!codsty->nreslevels2decode) {\n\n av_log(avctx, AV_LOG_ERROR, \"nreslevels2decode uninitialized\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n if (ret = ff_jpeg2000_dwt_init(&comp->dwt, comp->coord,\n\n codsty->nreslevels2decode - 1,\n\n codsty->transform))\n\n return ret;\n\n // component size comp->coord is uint16_t so ir cannot overflow\n\n csize = (comp->coord[0][1] - comp->coord[0][0]) *\n\n (comp->coord[1][1] - comp->coord[1][0]);\n\n\n\n comp->data = av_malloc_array(csize, sizeof(*comp->data));\n\n if (!comp->data)\n\n return AVERROR(ENOMEM);\n\n comp->reslevel = av_malloc_array(codsty->nreslevels, sizeof(*comp->reslevel));\n\n if (!comp->reslevel)\n\n return AVERROR(ENOMEM);\n\n /* LOOP on resolution levels */\n\n for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++) {\n\n int declvl = codsty->nreslevels - reslevelno; // N_L -r see ISO/IEC 15444-1:2002 B.5\n\n Jpeg2000ResLevel *reslevel = comp->reslevel + reslevelno;\n\n\n\n /* Compute borders for each resolution level.\n\n * Computation of trx_0, trx_1, try_0 and try_1.\n\n * see ISO/IEC 15444-1:2002 eq. B.5 and B-14 */\n\n for (i = 0; i < 2; i++)\n\n for (j = 0; j < 2; j++)\n\n reslevel->coord[i][j] =\n\n ff_jpeg2000_ceildivpow2(comp->coord_o[i][j], declvl - 1);\n\n // update precincts size: 2^n value\n\n reslevel->log2_prec_width = codsty->log2_prec_widths[reslevelno];\n\n reslevel->log2_prec_height = codsty->log2_prec_heights[reslevelno];\n\n\n\n /* Number of bands for each resolution level */\n\n if (reslevelno == 0)\n\n reslevel->nbands = 1;\n\n else\n\n reslevel->nbands = 3;\n\n\n\n /* Number of precincts wich span the tile for resolution level reslevelno\n\n * see B.6 in ISO/IEC 15444-1:2002 eq. B-16\n\n * num_precincts_x = |- trx_1 / 2 ^ log2_prec_width) -| - (trx_0 / 2 ^ log2_prec_width)\n\n * num_precincts_y = |- try_1 / 2 ^ log2_prec_width) -| - (try_0 / 2 ^ log2_prec_width)\n\n * for Dcinema profiles in JPEG 2000\n\n * num_precincts_x = |- trx_1 / 2 ^ log2_prec_width) -|\n\n * num_precincts_y = |- try_1 / 2 ^ log2_prec_width) -| */\n\n if (reslevel->coord[0][1] == reslevel->coord[0][0])\n\n reslevel->num_precincts_x = 0;\n\n else\n\n reslevel->num_precincts_x =\n\n ff_jpeg2000_ceildivpow2(reslevel->coord[0][1],\n\n reslevel->log2_prec_width) -\n\n (reslevel->coord[0][0] >> reslevel->log2_prec_width);\n\n\n\n if (reslevel->coord[1][1] == reslevel->coord[1][0])\n\n reslevel->num_precincts_y = 0;\n\n else\n\n reslevel->num_precincts_y =\n\n ff_jpeg2000_ceildivpow2(reslevel->coord[1][1],\n\n reslevel->log2_prec_height) -\n\n (reslevel->coord[1][0] >> reslevel->log2_prec_height);\n\n\n\n reslevel->band = av_malloc_array(reslevel->nbands, sizeof(*reslevel->band));\n\n if (!reslevel->band)\n\n return AVERROR(ENOMEM);\n\n\n\n for (bandno = 0; bandno < reslevel->nbands; bandno++, gbandno++) {\n\n Jpeg2000Band *band = reslevel->band + bandno;\n\n int cblkno, precno;\n\n int nb_precincts;\n\n\n\n /* TODO: Implementation of quantization step not finished,\n\n * see ISO/IEC 15444-1:2002 E.1 and A.6.4. */\n\n switch (qntsty->quantsty) {\n\n uint8_t gain;\n\n int numbps;\n\n case JPEG2000_QSTY_NONE:\n\n /* TODO: to verify. No quantization in this case */\n\n numbps = cbps +\n\n lut_gain[codsty->transform][bandno + reslevelno > 0];\n\n band->stepsize = (float)SHL(2048 + qntsty->mant[gbandno],\n\n 2 + numbps - qntsty->expn[gbandno]);\n\n break;\n\n case JPEG2000_QSTY_SI:\n\n /*TODO: Compute formula to implement. */\n\n band->stepsize = (float) (1 << 13);\n\n break;\n\n case JPEG2000_QSTY_SE:\n\n /* Exponent quantization step.\n\n * Formula:\n\n * delta_b = 2 ^ (R_b - expn_b) * (1 + (mant_b / 2 ^ 11))\n\n * R_b = R_I + log2 (gain_b )\n\n * see ISO/IEC 15444-1:2002 E.1.1 eqn. E-3 and E-4 */\n\n /* TODO/WARN: value of log2 (gain_b ) not taken into account\n\n * but it works (compared to OpenJPEG). Why?\n\n * Further investigation needed. */\n\n gain = cbps;\n\n band->stepsize = pow(2.0, gain - qntsty->expn[gbandno]);\n\n band->stepsize *= (float)qntsty->mant[gbandno] / 2048.0 + 1.0;\n\n /* FIXME: In openjepg code stespize = stepsize * 0.5. Why?\n\n * If not set output of entropic decoder is not correct. */\n\n band->stepsize *= 0.5;\n\n break;\n\n default:\n\n band->stepsize = 0;\n\n av_log(avctx, AV_LOG_ERROR, \"Unknown quantization format\\n\");\n\n break;\n\n }\n\n /* BITEXACT computing case --> convert to int */\n\n if (avctx->flags & CODEC_FLAG_BITEXACT)\n\n band->stepsize = (int32_t)(band->stepsize * (1 << 16));\n\n\n\n /* computation of tbx_0, tbx_1, tby_0, tby_1\n\n * see ISO/IEC 15444-1:2002 B.5 eq. B-15 and tbl B.1\n\n * codeblock width and height is computed for\n\n * DCI JPEG 2000 codeblock_width = codeblock_width = 32 = 2 ^ 5 */\n\n if (reslevelno == 0) {\n\n /* for reslevelno = 0, only one band, x0_b = y0_b = 0 */\n\n for (i = 0; i < 2; i++)\n\n for (j = 0; j < 2; j++)\n\n band->coord[i][j] =\n\n ff_jpeg2000_ceildivpow2(comp->coord_o[i][j],\n\n declvl - 1);\n\n\n\n log2_band_prec_width = reslevel->log2_prec_width;\n\n log2_band_prec_height = reslevel->log2_prec_height;\n\n /* see ISO/IEC 15444-1:2002 eq. B-17 and eq. B-15 */\n\n band->log2_cblk_width = FFMIN(codsty->log2_cblk_width,\n\n reslevel->log2_prec_width);\n\n band->log2_cblk_height = FFMIN(codsty->log2_cblk_height,\n\n reslevel->log2_prec_height);\n\n } else {\n\n /* 3 bands x0_b = 1 y0_b = 0; x0_b = 0 y0_b = 1; x0_b = y0_b = 1 */\n\n /* x0_b and y0_b are computed with ((bandno + 1 >> i) & 1) */\n\n for (i = 0; i < 2; i++)\n\n for (j = 0; j < 2; j++)\n\n /* Formula example for tbx_0 = ceildiv((tcx_0 - 2 ^ (declvl - 1) * x0_b) / declvl) */\n\n band->coord[i][j] =\n\n ff_jpeg2000_ceildivpow2(comp->coord_o[i][j] -\n\n (((bandno + 1 >> i) & 1) << declvl - 1),\n\n declvl);\n\n /* TODO: Manage case of 3 band offsets here or\n\n * in coding/decoding function? */\n\n\n\n /* see ISO/IEC 15444-1:2002 eq. B-17 and eq. B-15 */\n\n band->log2_cblk_width = FFMIN(codsty->log2_cblk_width,\n\n reslevel->log2_prec_width - 1);\n\n band->log2_cblk_height = FFMIN(codsty->log2_cblk_height,\n\n reslevel->log2_prec_height - 1);\n\n\n\n log2_band_prec_width = reslevel->log2_prec_width - 1;\n\n log2_band_prec_height = reslevel->log2_prec_height - 1;\n\n }\n\n\n\n band->prec = av_malloc_array(reslevel->num_precincts_x *\n\n reslevel->num_precincts_y,\n\n sizeof(*band->prec));\n\n if (!band->prec)\n\n return AVERROR(ENOMEM);\n\n\n\n nb_precincts = reslevel->num_precincts_x * reslevel->num_precincts_y;\n\n\n\n for (precno = 0; precno < nb_precincts; precno++) {\n\n Jpeg2000Prec *prec = band->prec + precno;\n\n\n\n /* TODO: Explain formula for JPEG200 DCINEMA. */\n\n /* TODO: Verify with previous count of codeblocks per band */\n\n\n\n /* Compute P_x0 */\n\n prec->coord[0][0] = (precno % reslevel->num_precincts_x) *\n\n (1 << log2_band_prec_width);\n\n prec->coord[0][0] = FFMAX(prec->coord[0][0], band->coord[0][0]);\n\n\n\n /* Compute P_y0 */\n\n prec->coord[1][0] = (precno / reslevel->num_precincts_x) *\n\n (1 << log2_band_prec_height);\n\n prec->coord[1][0] = FFMAX(prec->coord[1][0], band->coord[1][0]);\n\n\n\n /* Compute P_x1 */\n\n prec->coord[0][1] = prec->coord[0][0] +\n\n (1 << log2_band_prec_width);\n\n prec->coord[0][1] = FFMIN(prec->coord[0][1], band->coord[0][1]);\n\n\n\n /* Compute P_y1 */\n\n prec->coord[1][1] = prec->coord[1][0] +\n\n (1 << log2_band_prec_height);\n\n prec->coord[1][1] = FFMIN(prec->coord[1][1], band->coord[1][1]);\n\n\n\n prec->nb_codeblocks_width =\n\n ff_jpeg2000_ceildivpow2(prec->coord[0][1] -\n\n prec->coord[0][0],\n\n band->log2_cblk_width);\n\n prec->nb_codeblocks_height =\n\n ff_jpeg2000_ceildivpow2(prec->coord[1][1] -\n\n prec->coord[1][0],\n\n band->log2_cblk_height);\n\n\n\n /* Tag trees initialization */\n\n prec->cblkincl =\n\n ff_jpeg2000_tag_tree_init(prec->nb_codeblocks_width,\n\n prec->nb_codeblocks_height);\n\n if (!prec->cblkincl)\n\n return AVERROR(ENOMEM);\n\n\n\n prec->zerobits =\n\n ff_jpeg2000_tag_tree_init(prec->nb_codeblocks_width,\n\n prec->nb_codeblocks_height);\n\n if (!prec->zerobits)\n\n return AVERROR(ENOMEM);\n\n\n\n prec->cblk = av_malloc_array(prec->nb_codeblocks_width *\n\n prec->nb_codeblocks_height,\n\n sizeof(*prec->cblk));\n\n if (!prec->cblk)\n\n return AVERROR(ENOMEM);\n\n for (cblkno = 0; cblkno < prec->nb_codeblocks_width * prec->nb_codeblocks_height; cblkno++) {\n\n Jpeg2000Cblk *cblk = prec->cblk + cblkno;\n\n uint16_t Cx0, Cy0;\n\n\n\n /* Compute coordinates of codeblocks */\n\n /* Compute Cx0*/\n\n Cx0 = (prec->coord[0][0] >> band->log2_cblk_width) << band->log2_cblk_width;\n\n Cx0 = Cx0 + ((cblkno % prec->nb_codeblocks_width) << band->log2_cblk_width);\n\n cblk->coord[0][0] = FFMAX(Cx0, prec->coord[0][0]);\n\n\n\n /* Compute Cy0*/\n\n Cy0 = (prec->coord[1][0] >> band->log2_cblk_height) << band->log2_cblk_height;\n\n Cy0 = Cy0 + ((cblkno / prec->nb_codeblocks_width) << band->log2_cblk_height);\n\n cblk->coord[1][0] = FFMAX(Cy0, prec->coord[1][0]);\n\n\n\n /* Compute Cx1 */\n\n cblk->coord[0][1] = FFMIN(Cx0 + (1 << band->log2_cblk_width),\n\n prec->coord[0][1]);\n\n\n\n /* Compute Cy1 */\n\n cblk->coord[1][1] = FFMIN(Cy0 + (1 << band->log2_cblk_height),\n\n prec->coord[1][1]);\n\n cblk->zero = 0;\n\n cblk->lblock = 3;\n\n cblk->length = 0;\n\n cblk->lengthinc = 0;\n\n cblk->npasses = 0;\n\n }\n\n }\n\n }\n\n }\n\n return 0;\n\n}\n", + "output": "1", + "index": 5625 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int encode_q_branch(SnowContext *s, int level, int x, int y){\n\n uint8_t p_buffer[1024];\n\n uint8_t i_buffer[1024];\n\n uint8_t p_state[sizeof(s->block_state)];\n\n uint8_t i_state[sizeof(s->block_state)];\n\n RangeCoder pc, ic;\n\n uint8_t *pbbak= s->c.bytestream;\n\n uint8_t *pbbak_start= s->c.bytestream_start;\n\n int score, score2, iscore, i_len, p_len, block_s, sum, base_bits;\n\n const int w= s->b_width << s->block_max_depth;\n\n const int h= s->b_height << s->block_max_depth;\n\n const int rem_depth= s->block_max_depth - level;\n\n const int index= (x + y*w) << rem_depth;\n\n const int block_w= 1<<(LOG2_MB_SIZE - level);\n\n int trx= (x+1)<block[index-1] : &null_block;\n\n const BlockNode *top = y ? &s->block[index-w] : &null_block;\n\n const BlockNode *right = trxblock[index+1] : &null_block;\n\n const BlockNode *bottom= tryblock[index+w] : &null_block;\n\n const BlockNode *tl = y && x ? &s->block[index-w-1] : left;\n\n const BlockNode *tr = y && trxblock[index-w+(1<color[0];\n\n int pcb= left->color[1];\n\n int pcr= left->color[2];\n\n int pmx, pmy;\n\n int mx=0, my=0;\n\n int l,cr,cb;\n\n const int stride= s->current_picture->linesize[0];\n\n const int uvstride= s->current_picture->linesize[1];\n\n uint8_t *current_data[3]= { s->input_picture->data[0] + (x + y* stride)*block_w,\n\n s->input_picture->data[1] + ((x*block_w)>>s->chroma_h_shift) + ((y*uvstride*block_w)>>s->chroma_v_shift),\n\n s->input_picture->data[2] + ((x*block_w)>>s->chroma_h_shift) + ((y*uvstride*block_w)>>s->chroma_v_shift)};\n\n int P[10][2];\n\n int16_t last_mv[3][2];\n\n int qpel= !!(s->avctx->flags & AV_CODEC_FLAG_QPEL); //unused\n\n const int shift= 1+qpel;\n\n MotionEstContext *c= &s->m.me;\n\n int ref_context= av_log2(2*left->ref) + av_log2(2*top->ref);\n\n int mx_context= av_log2(2*FFABS(left->mx - top->mx));\n\n int my_context= av_log2(2*FFABS(left->my - top->my));\n\n int s_context= 2*left->level + 2*top->level + tl->level + tr->level;\n\n int ref, best_ref, ref_score, ref_mx, ref_my;\n\n\n\n av_assert0(sizeof(s->block_state) >= 256);\n\n if(s->keyframe){\n\n set_blocks(s, level, x, y, pl, pcb, pcr, 0, 0, 0, BLOCK_INTRA);\n\n return 0;\n\n }\n\n\n\n// clip predictors / edge ?\n\n\n\n P_LEFT[0]= left->mx;\n\n P_LEFT[1]= left->my;\n\n P_TOP [0]= top->mx;\n\n P_TOP [1]= top->my;\n\n P_TOPRIGHT[0]= tr->mx;\n\n P_TOPRIGHT[1]= tr->my;\n\n\n\n last_mv[0][0]= s->block[index].mx;\n\n last_mv[0][1]= s->block[index].my;\n\n last_mv[1][0]= right->mx;\n\n last_mv[1][1]= right->my;\n\n last_mv[2][0]= bottom->mx;\n\n last_mv[2][1]= bottom->my;\n\n\n\n s->m.mb_stride=2;\n\n s->m.mb_x=\n\n s->m.mb_y= 0;\n\n c->skip= 0;\n\n\n\n av_assert1(c-> stride == stride);\n\n av_assert1(c->uvstride == uvstride);\n\n\n\n c->penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_cmp);\n\n c->sub_penalty_factor= get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_sub_cmp);\n\n c->mb_penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->mb_cmp);\n\n c->current_mv_penalty= c->mv_penalty[s->m.f_code=1] + MAX_MV;\n\n\n\n c->xmin = - x*block_w - 16+3;\n\n c->ymin = - y*block_w - 16+3;\n\n c->xmax = - (x+1)*block_w + (w<<(LOG2_MB_SIZE - s->block_max_depth)) + 16-3;\n\n c->ymax = - (y+1)*block_w + (h<<(LOG2_MB_SIZE - s->block_max_depth)) + 16-3;\n\n\n\n if(P_LEFT[0] > (c->xmax<xmax< (c->ymax<ymax< (c->xmax<xmax< (c->ymax<ymax<xmin<xmin< (c->xmax<xmax< (c->ymax<ymax<pred_x= P_LEFT[0];\n\n c->pred_y= P_LEFT[1];\n\n } else {\n\n c->pred_x = P_MEDIAN[0];\n\n c->pred_y = P_MEDIAN[1];\n\n }\n\n\n\n score= INT_MAX;\n\n best_ref= 0;\n\n for(ref=0; refref_frames; ref++){\n\n init_ref(c, current_data, s->last_picture[ref]->data, NULL, block_w*x, block_w*y, 0);\n\n\n\n ref_score= ff_epzs_motion_search(&s->m, &ref_mx, &ref_my, P, 0, /*ref_index*/ 0, last_mv,\n\n (1<<16)>>shift, level-LOG2_MB_SIZE+4, block_w);\n\n\n\n av_assert2(ref_mx >= c->xmin);\n\n av_assert2(ref_mx <= c->xmax);\n\n av_assert2(ref_my >= c->ymin);\n\n av_assert2(ref_my <= c->ymax);\n\n\n\n ref_score= c->sub_motion_search(&s->m, &ref_mx, &ref_my, ref_score, 0, 0, level-LOG2_MB_SIZE+4, block_w);\n\n ref_score= ff_get_mb_score(&s->m, ref_mx, ref_my, 0, 0, level-LOG2_MB_SIZE+4, block_w, 0);\n\n ref_score+= 2*av_log2(2*ref)*c->penalty_factor;\n\n if(s->ref_mvs[ref]){\n\n s->ref_mvs[ref][index][0]= ref_mx;\n\n s->ref_mvs[ref][index][1]= ref_my;\n\n s->ref_scores[ref][index]= ref_score;\n\n }\n\n if(score > ref_score){\n\n score= ref_score;\n\n best_ref= ref;\n\n mx= ref_mx;\n\n my= ref_my;\n\n }\n\n }\n\n //FIXME if mb_cmp != SSE then intra cannot be compared currently and mb_penalty vs. lambda2\n\n\n\n // subpel search\n\n base_bits= get_rac_count(&s->c) - 8*(s->c.bytestream - s->c.bytestream_start);\n\n pc= s->c;\n\n pc.bytestream_start=\n\n pc.bytestream= p_buffer; //FIXME end/start? and at the other stoo\n\n memcpy(p_state, s->block_state, sizeof(s->block_state));\n\n\n\n if(level!=s->block_max_depth)\n\n put_rac(&pc, &p_state[4 + s_context], 1);\n\n put_rac(&pc, &p_state[1 + left->type + top->type], 0);\n\n if(s->ref_frames > 1)\n\n put_symbol(&pc, &p_state[128 + 1024 + 32*ref_context], best_ref, 0);\n\n pred_mv(s, &pmx, &pmy, best_ref, left, top, tr);\n\n put_symbol(&pc, &p_state[128 + 32*(mx_context + 16*!!best_ref)], mx - pmx, 1);\n\n put_symbol(&pc, &p_state[128 + 32*(my_context + 16*!!best_ref)], my - pmy, 1);\n\n p_len= pc.bytestream - pc.bytestream_start;\n\n score += (s->lambda2*(get_rac_count(&pc)-base_bits))>>FF_LAMBDA_SHIFT;\n\n\n\n block_s= block_w*block_w;\n\n sum = pix_sum(current_data[0], stride, block_w, block_w);\n\n l= (sum + block_s/2)/block_s;\n\n iscore = pix_norm1(current_data[0], stride, block_w) - 2*l*sum + l*l*block_s;\n\n\n\n if (s->nb_planes > 2) {\n\n block_s= block_w*block_w>>(s->chroma_h_shift + s->chroma_v_shift);\n\n sum = pix_sum(current_data[1], uvstride, block_w>>s->chroma_h_shift, block_w>>s->chroma_v_shift);\n\n cb= (sum + block_s/2)/block_s;\n\n // iscore += pix_norm1(¤t_mb[1][0], uvstride, block_w>>1) - 2*cb*sum + cb*cb*block_s;\n\n sum = pix_sum(current_data[2], uvstride, block_w>>s->chroma_h_shift, block_w>>s->chroma_v_shift);\n\n cr= (sum + block_s/2)/block_s;\n\n // iscore += pix_norm1(¤t_mb[2][0], uvstride, block_w>>1) - 2*cr*sum + cr*cr*block_s;\n\n }else\n\n cb = cr = 0;\n\n\n\n ic= s->c;\n\n ic.bytestream_start=\n\n ic.bytestream= i_buffer; //FIXME end/start? and at the other stoo\n\n memcpy(i_state, s->block_state, sizeof(s->block_state));\n\n if(level!=s->block_max_depth)\n\n put_rac(&ic, &i_state[4 + s_context], 1);\n\n put_rac(&ic, &i_state[1 + left->type + top->type], 1);\n\n put_symbol(&ic, &i_state[32], l-pl , 1);\n\n if (s->nb_planes > 2) {\n\n put_symbol(&ic, &i_state[64], cb-pcb, 1);\n\n put_symbol(&ic, &i_state[96], cr-pcr, 1);\n\n }\n\n i_len= ic.bytestream - ic.bytestream_start;\n\n iscore += (s->lambda2*(get_rac_count(&ic)-base_bits))>>FF_LAMBDA_SHIFT;\n\n\n\n av_assert1(iscore < 255*255*256 + s->lambda2*10);\n\n av_assert1(iscore >= 0);\n\n av_assert1(l>=0 && l<=255);\n\n av_assert1(pl>=0 && pl<=255);\n\n\n\n if(level==0){\n\n int varc= iscore >> 8;\n\n int vard= score >> 8;\n\n if (vard <= 64 || vard < varc)\n\n c->scene_change_score+= ff_sqrt(vard) - ff_sqrt(varc);\n\n else\n\n c->scene_change_score+= s->m.qscale;\n\n }\n\n\n\n if(level!=s->block_max_depth){\n\n put_rac(&s->c, &s->block_state[4 + s_context], 0);\n\n score2 = encode_q_branch(s, level+1, 2*x+0, 2*y+0);\n\n score2+= encode_q_branch(s, level+1, 2*x+1, 2*y+0);\n\n score2+= encode_q_branch(s, level+1, 2*x+0, 2*y+1);\n\n score2+= encode_q_branch(s, level+1, 2*x+1, 2*y+1);\n\n score2+= s->lambda2>>FF_LAMBDA_SHIFT; //FIXME exact split overhead\n\n\n\n if(score2 < score && score2 < iscore)\n\n return score2;\n\n }\n\n\n\n if(iscore < score){\n\n pred_mv(s, &pmx, &pmy, 0, left, top, tr);\n\n memcpy(pbbak, i_buffer, i_len);\n\n s->c= ic;\n\n s->c.bytestream_start= pbbak_start;\n\n s->c.bytestream= pbbak + i_len;\n\n set_blocks(s, level, x, y, l, cb, cr, pmx, pmy, 0, BLOCK_INTRA);\n\n memcpy(s->block_state, i_state, sizeof(s->block_state));\n\n return iscore;\n\n }else{\n\n memcpy(pbbak, p_buffer, p_len);\n\n s->c= pc;\n\n s->c.bytestream_start= pbbak_start;\n\n s->c.bytestream= pbbak + p_len;\n\n set_blocks(s, level, x, y, pl, pcb, pcr, mx, my, best_ref, 0);\n\n memcpy(s->block_state, p_state, sizeof(s->block_state));\n\n return score;\n\n }\n\n}\n", + "output": "0", + "index": 23717 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int vc1_decode_frame(AVCodecContext *avctx, void *data,\n int *data_size, AVPacket *avpkt)\n{\n const uint8_t *buf = avpkt->data;\n int buf_size = avpkt->size, n_slices = 0, i;\n VC1Context *v = avctx->priv_data;\n MpegEncContext *s = &v->s;\n AVFrame *pict = data;\n uint8_t *buf2 = NULL;\n const uint8_t *buf_start = buf, *buf_start_second_field = NULL;\n int mb_height, n_slices1=-1;\n struct {\n uint8_t *buf;\n GetBitContext gb;\n int mby_start;\n } *slices = NULL, *tmp;\n v->second_field = 0;\n if(s->flags & CODEC_FLAG_LOW_DELAY)\n s->low_delay = 1;\n /* no supplementary picture */\n if (buf_size == 0 || (buf_size == 4 && AV_RB32(buf) == VC1_CODE_ENDOFSEQ)) {\n /* special case for last picture */\n if (s->low_delay == 0 && s->next_picture_ptr) {\n *pict = s->next_picture_ptr->f;\n s->next_picture_ptr = NULL;\n *data_size = sizeof(AVFrame);\n return buf_size;\n if (s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU) {\n if (v->profile < PROFILE_ADVANCED)\n avctx->pix_fmt = AV_PIX_FMT_VDPAU_WMV3;\n else\n avctx->pix_fmt = AV_PIX_FMT_VDPAU_VC1;\n //for advanced profile we may need to parse and unescape data\n if (avctx->codec_id == AV_CODEC_ID_VC1 || avctx->codec_id == AV_CODEC_ID_VC1IMAGE) {\n int buf_size2 = 0;\n buf2 = av_mallocz(buf_size + FF_INPUT_BUFFER_PADDING_SIZE);\n if (IS_MARKER(AV_RB32(buf))) { /* frame starts with marker and needs to be parsed */\n const uint8_t *start, *end, *next;\n int size;\n next = buf;\n for (start = buf, end = buf + buf_size; next < end; start = next) {\n next = find_next_marker(start + 4, end);\n size = next - start - 4;\n if (size <= 0) continue;\n switch (AV_RB32(start)) {\n case VC1_CODE_FRAME:\n if (avctx->hwaccel ||\n s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)\n buf_start = start;\n buf_size2 = vc1_unescape_buffer(start + 4, size, buf2);\n break;\n case VC1_CODE_FIELD: {\n int buf_size3;\n if (avctx->hwaccel ||\n s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)\n buf_start_second_field = start;\n tmp = av_realloc(slices, sizeof(*slices) * (n_slices+1));\n if (!tmp)\n slices = tmp;\n slices[n_slices].buf = av_mallocz(buf_size + FF_INPUT_BUFFER_PADDING_SIZE);\n if (!slices[n_slices].buf)\n buf_size3 = vc1_unescape_buffer(start + 4, size,\n slices[n_slices].buf);\n init_get_bits(&slices[n_slices].gb, slices[n_slices].buf,\n buf_size3 << 3);\n /* assuming that the field marker is at the exact middle,\n hope it's correct */\n slices[n_slices].mby_start = s->mb_height >> 1;\n n_slices1 = n_slices - 1; // index of the last slice of the first field\n n_slices++;\n break;\n case VC1_CODE_ENTRYPOINT: /* it should be before frame data */\n buf_size2 = vc1_unescape_buffer(start + 4, size, buf2);\n init_get_bits(&s->gb, buf2, buf_size2 * 8);\n ff_vc1_decode_entry_point(avctx, v, &s->gb);\n break;\n case VC1_CODE_SLICE: {\n int buf_size3;\n tmp = av_realloc(slices, sizeof(*slices) * (n_slices+1));\n if (!tmp)\n slices = tmp;\n slices[n_slices].buf = av_mallocz(buf_size + FF_INPUT_BUFFER_PADDING_SIZE);\n if (!slices[n_slices].buf)\n buf_size3 = vc1_unescape_buffer(start + 4, size,\n slices[n_slices].buf);\n init_get_bits(&slices[n_slices].gb, slices[n_slices].buf,\n buf_size3 << 3);\n slices[n_slices].mby_start = get_bits(&slices[n_slices].gb, 9);\n n_slices++;\n break;\n } else if (v->interlace && ((buf[0] & 0xC0) == 0xC0)) { /* WVC1 interlaced stores both fields divided by marker */\n const uint8_t *divider;\n int buf_size3;\n divider = find_next_marker(buf, buf + buf_size);\n if ((divider == (buf + buf_size)) || AV_RB32(divider) != VC1_CODE_FIELD) {\n av_log(avctx, AV_LOG_ERROR, \"Error in WVC1 interlaced frame\\n\");\n } else { // found field marker, unescape second field\n if (avctx->hwaccel ||\n s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)\n buf_start_second_field = divider;\n tmp = av_realloc(slices, sizeof(*slices) * (n_slices+1));\n if (!tmp)\n slices = tmp;\n slices[n_slices].buf = av_mallocz(buf_size + FF_INPUT_BUFFER_PADDING_SIZE);\n if (!slices[n_slices].buf)\n buf_size3 = vc1_unescape_buffer(divider + 4, buf + buf_size - divider - 4, slices[n_slices].buf);\n init_get_bits(&slices[n_slices].gb, slices[n_slices].buf,\n buf_size3 << 3);\n slices[n_slices].mby_start = s->mb_height >> 1;\n n_slices1 = n_slices - 1;\n n_slices++;\n buf_size2 = vc1_unescape_buffer(buf, divider - buf, buf2);\n } else {\n buf_size2 = vc1_unescape_buffer(buf, buf_size, buf2);\n init_get_bits(&s->gb, buf2, buf_size2*8);\n } else\n init_get_bits(&s->gb, buf, buf_size*8);\n if (v->res_sprite) {\n v->new_sprite = !get_bits1(&s->gb);\n v->two_sprites = get_bits1(&s->gb);\n /* res_sprite means a Windows Media Image stream, AV_CODEC_ID_*IMAGE means\n we're using the sprite compositor. These are intentionally kept separate\n so you can get the raw sprites by using the wmv3 decoder for WMVP or\n the vc1 one for WVP2 */\n if (avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || avctx->codec_id == AV_CODEC_ID_VC1IMAGE) {\n if (v->new_sprite) {\n // switch AVCodecContext parameters to those of the sprites\n avctx->width = avctx->coded_width = v->sprite_width;\n avctx->height = avctx->coded_height = v->sprite_height;\n } else {\n goto image;\n if (s->context_initialized &&\n (s->width != avctx->coded_width ||\n s->height != avctx->coded_height)) {\n ff_vc1_decode_end(avctx);\n if (!s->context_initialized) {\n if (ff_msmpeg4_decode_init(avctx) < 0 || ff_vc1_decode_init_alloc_tables(v) < 0)\n s->low_delay = !avctx->has_b_frames || v->res_sprite;\n if (v->profile == PROFILE_ADVANCED) {\n s->h_edge_pos = avctx->coded_width;\n s->v_edge_pos = avctx->coded_height;\n /* We need to set current_picture_ptr before reading the header,\n * otherwise we cannot store anything in there. */\n if (s->current_picture_ptr == NULL || s->current_picture_ptr->f.data[0]) {\n int i = ff_find_unused_picture(s, 0);\n if (i < 0)\n s->current_picture_ptr = &s->picture[i];\n // do parse frame header\n v->pic_header_flag = 0;\n if (v->profile < PROFILE_ADVANCED) {\n if (ff_vc1_parse_frame_header(v, &s->gb) < 0) {\n } else {\n if (ff_vc1_parse_frame_header_adv(v, &s->gb) < 0) {\n if (avctx->debug & FF_DEBUG_PICT_INFO)\n av_log(v->s.avctx, AV_LOG_DEBUG, \"pict_type: %c\\n\", av_get_picture_type_char(s->pict_type));\n if ((avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || avctx->codec_id == AV_CODEC_ID_VC1IMAGE)\n && s->pict_type != AV_PICTURE_TYPE_I) {\n av_log(v->s.avctx, AV_LOG_ERROR, \"Sprite decoder: expected I-frame\\n\");\n // process pulldown flags\n s->current_picture_ptr->f.repeat_pict = 0;\n // Pulldown flags are only valid when 'broadcast' has been set.\n // So ticks_per_frame will be 2\n if (v->rff) {\n // repeat field\n s->current_picture_ptr->f.repeat_pict = 1;\n } else if (v->rptfrm) {\n // repeat frames\n s->current_picture_ptr->f.repeat_pict = v->rptfrm * 2;\n // for skipping the frame\n s->current_picture.f.pict_type = s->pict_type;\n s->current_picture.f.key_frame = s->pict_type == AV_PICTURE_TYPE_I;\n /* skip B-frames if we don't have reference frames */\n if (s->last_picture_ptr == NULL && (s->pict_type == AV_PICTURE_TYPE_B || s->dropable)) {\n if ((avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B) ||\n (avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I) ||\n avctx->skip_frame >= AVDISCARD_ALL) {\n goto end;\n if (s->next_p_frame_damaged) {\n if (s->pict_type == AV_PICTURE_TYPE_B)\n goto end;\n else\n s->next_p_frame_damaged = 0;\n if (ff_MPV_frame_start(s, avctx) < 0) {\n v->s.current_picture_ptr->f.interlaced_frame = (v->fcm != PROGRESSIVE);\n v->s.current_picture_ptr->f.top_field_first = v->tff;\n s->me.qpel_put = s->dsp.put_qpel_pixels_tab;\n s->me.qpel_avg = s->dsp.avg_qpel_pixels_tab;\n if ((CONFIG_VC1_VDPAU_DECODER)\n &&s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)\n ff_vdpau_vc1_decode_picture(s, buf_start, (buf + buf_size) - buf_start);\n else if (avctx->hwaccel) {\n if (v->field_mode && buf_start_second_field) {\n // decode first field\n s->picture_structure = PICT_BOTTOM_FIELD - v->tff;\n if (avctx->hwaccel->start_frame(avctx, buf_start, buf_start_second_field - buf_start) < 0)\n if (avctx->hwaccel->decode_slice(avctx, buf_start, buf_start_second_field - buf_start) < 0)\n if (avctx->hwaccel->end_frame(avctx) < 0)\n // decode second field\n s->gb = slices[n_slices1 + 1].gb;\n s->picture_structure = PICT_TOP_FIELD + v->tff;\n v->second_field = 1;\n v->pic_header_flag = 0;\n if (ff_vc1_parse_frame_header_adv(v, &s->gb) < 0) {\n av_log(avctx, AV_LOG_ERROR, \"parsing header for second field failed\");\n v->s.current_picture_ptr->f.pict_type = v->s.pict_type;\n if (avctx->hwaccel->start_frame(avctx, buf_start_second_field, (buf + buf_size) - buf_start_second_field) < 0)\n if (avctx->hwaccel->decode_slice(avctx, buf_start_second_field, (buf + buf_size) - buf_start_second_field) < 0)\n if (avctx->hwaccel->end_frame(avctx) < 0)\n } else {\n s->picture_structure = PICT_FRAME;\n if (avctx->hwaccel->start_frame(avctx, buf_start, (buf + buf_size) - buf_start) < 0)\n if (avctx->hwaccel->decode_slice(avctx, buf_start, (buf + buf_size) - buf_start) < 0)\n if (avctx->hwaccel->end_frame(avctx) < 0)\n } else {\n if (v->fcm == ILACE_FRAME && s->pict_type == AV_PICTURE_TYPE_B)\n goto err; // This codepath is still incomplete thus it is disabled\n ff_er_frame_start(s);\n v->bits = buf_size * 8;\n v->end_mb_x = s->mb_width;\n if (v->field_mode) {\n uint8_t *tmp[2];\n s->current_picture.f.linesize[0] <<= 1;\n s->current_picture.f.linesize[1] <<= 1;\n s->current_picture.f.linesize[2] <<= 1;\n s->linesize <<= 1;\n s->uvlinesize <<= 1;\n tmp[0] = v->mv_f_last[0];\n tmp[1] = v->mv_f_last[1];\n v->mv_f_last[0] = v->mv_f_next[0];\n v->mv_f_last[1] = v->mv_f_next[1];\n v->mv_f_next[0] = v->mv_f[0];\n v->mv_f_next[1] = v->mv_f[1];\n v->mv_f[0] = tmp[0];\n v->mv_f[1] = tmp[1];\n mb_height = s->mb_height >> v->field_mode;\n for (i = 0; i <= n_slices; i++) {\n if (i > 0 && slices[i - 1].mby_start >= mb_height) {\n if (v->field_mode <= 0) {\n av_log(v->s.avctx, AV_LOG_ERROR, \"Slice %d starts beyond \"\n \"picture boundary (%d >= %d)\\n\", i,\n slices[i - 1].mby_start, mb_height);\n continue;\n v->second_field = 1;\n v->blocks_off = s->mb_width * s->mb_height << 1;\n v->mb_off = s->mb_stride * s->mb_height >> 1;\n } else {\n v->second_field = 0;\n v->blocks_off = 0;\n v->mb_off = 0;\n if (i) {\n v->pic_header_flag = 0;\n if (v->field_mode && i == n_slices1 + 2) {\n if (ff_vc1_parse_frame_header_adv(v, &s->gb) < 0) {\n av_log(v->s.avctx, AV_LOG_ERROR, \"Field header damaged\\n\");\n continue;\n } else if (get_bits1(&s->gb)) {\n v->pic_header_flag = 1;\n if (ff_vc1_parse_frame_header_adv(v, &s->gb) < 0) {\n av_log(v->s.avctx, AV_LOG_ERROR, \"Slice header damaged\\n\");\n continue;\n s->start_mb_y = (i == 0) ? 0 : FFMAX(0, slices[i-1].mby_start % mb_height);\n if (!v->field_mode || v->second_field)\n s->end_mb_y = (i == n_slices ) ? mb_height : FFMIN(mb_height, slices[i].mby_start % mb_height);\n else\n s->end_mb_y = (i <= n_slices1 + 1) ? mb_height : FFMIN(mb_height, slices[i].mby_start % mb_height);\n if (s->end_mb_y <= s->start_mb_y) {\n av_log(v->s.avctx, AV_LOG_ERROR, \"end mb y %d %d invalid\\n\", s->end_mb_y, s->start_mb_y);\n continue;\n ff_vc1_decode_blocks(v);\n if (i != n_slices)\n s->gb = slices[i].gb;\n if (v->field_mode) {\n v->second_field = 0;\n if (s->pict_type == AV_PICTURE_TYPE_B) {\n memcpy(v->mv_f_base, v->mv_f_next_base,\n 2 * (s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride * (s->mb_height + 1) * 2));\n s->current_picture.f.linesize[0] >>= 1;\n s->current_picture.f.linesize[1] >>= 1;\n s->current_picture.f.linesize[2] >>= 1;\n s->linesize >>= 1;\n s->uvlinesize >>= 1;\n av_dlog(s->avctx, \"Consumed %i/%i bits\\n\",\n get_bits_count(&s->gb), s->gb.size_in_bits);\n// if (get_bits_count(&s->gb) > buf_size * 8)\n// return -1;\n if(s->error_occurred && s->pict_type == AV_PICTURE_TYPE_B)\n if(!v->field_mode)\n ff_er_frame_end(s);\n ff_MPV_frame_end(s);\n if (avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || avctx->codec_id == AV_CODEC_ID_VC1IMAGE) {\nimage:\n avctx->width = avctx->coded_width = v->output_width;\n avctx->height = avctx->coded_height = v->output_height;\n if (avctx->skip_frame >= AVDISCARD_NONREF)\n goto end;\n#if CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER\n if (vc1_decode_sprites(v, &s->gb))\n#endif\n *pict = v->sprite_output_frame;\n *data_size = sizeof(AVFrame);\n } else {\n if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay) {\n *pict = s->current_picture_ptr->f;\n } else if (s->last_picture_ptr != NULL) {\n *pict = s->last_picture_ptr->f;\n if (s->last_picture_ptr || s->low_delay) {\n *data_size = sizeof(AVFrame);\n ff_print_debug_info(s, pict);\nend:\n av_free(buf2);\n for (i = 0; i < n_slices; i++)\n av_free(slices[i].buf);\n av_free(slices);\n return buf_size;\nerr:\n av_free(buf2);\n for (i = 0; i < n_slices; i++)\n av_free(slices[i].buf);\n av_free(slices);\n return -1;", + "output": "1", + "index": 14512 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int flic_decode_frame_15_16BPP(AVCodecContext *avctx,\n\n void *data, int *data_size,\n\n uint8_t *buf, int buf_size)\n\n{\n\n /* Note, the only difference between the 15Bpp and 16Bpp */\n\n /* Format is the pixel format, the packets are processed the same. */\n\n FlicDecodeContext *s = (FlicDecodeContext *)avctx->priv_data;\n\n\n\n int stream_ptr = 0;\n\n int pixel_ptr;\n\n unsigned char palette_idx1;\n\n\n\n unsigned int frame_size;\n\n int num_chunks;\n\n\n\n unsigned int chunk_size;\n\n int chunk_type;\n\n\n\n int i, j;\n\n\n\n int lines;\n\n int compressed_lines;\n\n signed short line_packets;\n\n int y_ptr;\n\n int byte_run;\n\n int pixel_skip;\n\n int pixel_countdown;\n\n unsigned char *pixels;\n\n int pixel;\n\n int pixel_limit;\n\n\n\n s->frame.reference = 1;\n\n s->frame.buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE;\n\n if (avctx->reget_buffer(avctx, &s->frame) < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"reget_buffer() failed\\n\");\n\n return -1;\n\n }\n\n\n\n pixels = s->frame.data[0];\n\n pixel_limit = s->avctx->height * s->frame.linesize[0];\n\n\n\n frame_size = LE_32(&buf[stream_ptr]);\n\n stream_ptr += 6; /* skip the magic number */\n\n num_chunks = LE_16(&buf[stream_ptr]);\n\n stream_ptr += 10; /* skip padding */\n\n\n\n frame_size -= 16;\n\n\n\n /* iterate through the chunks */\n\n while ((frame_size > 0) && (num_chunks > 0)) {\n\n chunk_size = LE_32(&buf[stream_ptr]);\n\n stream_ptr += 4;\n\n chunk_type = LE_16(&buf[stream_ptr]);\n\n stream_ptr += 2;\n\n\n\n switch (chunk_type) {\n\n case FLI_256_COLOR:\n\n case FLI_COLOR:\n\n /* For some reason, it seems that non-paletised flics do include one of these */\n\n /* chunks in their first frame. Why i do not know, it seems rather extraneous */\n\n/* av_log(avctx, AV_LOG_ERROR, \"Unexpected Palette chunk %d in non-paletised FLC\\n\",chunk_type);*/\n\n stream_ptr = stream_ptr + chunk_size - 6;\n\n break;\n\n\n\n case FLI_DELTA:\n\n case FLI_DTA_LC:\n\n y_ptr = 0;\n\n compressed_lines = LE_16(&buf[stream_ptr]);\n\n stream_ptr += 2;\n\n while (compressed_lines > 0) {\n\n line_packets = LE_16(&buf[stream_ptr]);\n\n stream_ptr += 2;\n\n if (line_packets < 0) {\n\n line_packets = -line_packets;\n\n y_ptr += line_packets * s->frame.linesize[0];\n\n } else {\n\n compressed_lines--;\n\n pixel_ptr = y_ptr;\n\n pixel_countdown = s->avctx->width;\n\n for (i = 0; i < line_packets; i++) {\n\n /* account for the skip bytes */\n\n pixel_skip = buf[stream_ptr++];\n\n pixel_ptr += (pixel_skip*2); /* Pixel is 2 bytes wide */\n\n pixel_countdown -= pixel_skip;\n\n byte_run = (signed char)(buf[stream_ptr++]);\n\n if (byte_run < 0) {\n\n byte_run = -byte_run;\n\n pixel = LE_16(&buf[stream_ptr]);\n\n stream_ptr += 2;\n\n CHECK_PIXEL_PTR(byte_run);\n\n for (j = 0; j < byte_run; j++, pixel_countdown -= 2) {\n\n *((signed short*)(&pixels[pixel_ptr])) = pixel;\n\n pixel_ptr += 2;\n\n }\n\n } else {\n\n CHECK_PIXEL_PTR(byte_run);\n\n for (j = 0; j < byte_run; j++, pixel_countdown--) {\n\n *((signed short*)(&pixels[pixel_ptr])) = LE_16(&buf[stream_ptr]);\n\n stream_ptr += 2;\n\n pixel_ptr += 2;\n\n }\n\n }\n\n }\n\n\n\n y_ptr += s->frame.linesize[0];\n\n }\n\n }\n\n break;\n\n\n\n case FLI_LC:\n\n av_log(avctx, AV_LOG_ERROR, \"Unexpected FLI_LC chunk in non-paletised FLC\\n\");\n\n stream_ptr = stream_ptr + chunk_size - 6;\n\n break;\n\n\n\n case FLI_BLACK:\n\n /* set the whole frame to 0x0000 which is balck in both 15Bpp and 16Bpp modes. */\n\n memset(pixels, 0x0000,\n\n s->frame.linesize[0] * s->avctx->height * 2);\n\n break;\n\n\n\n case FLI_BRUN:\n\n y_ptr = 0;\n\n for (lines = 0; lines < s->avctx->height; lines++) {\n\n pixel_ptr = y_ptr;\n\n /* disregard the line packets; instead, iterate through all\n\n * pixels on a row */\n\n stream_ptr++;\n\n pixel_countdown = (s->avctx->width * 2);\n\n\n\n while (pixel_countdown > 0) {\n\n byte_run = (signed char)(buf[stream_ptr++]);\n\n if (byte_run > 0) {\n\n palette_idx1 = buf[stream_ptr++];\n\n CHECK_PIXEL_PTR(byte_run);\n\n for (j = 0; j < byte_run; j++) {\n\n pixels[pixel_ptr++] = palette_idx1;\n\n pixel_countdown--;\n\n if (pixel_countdown < 0)\n\n av_log(avctx, AV_LOG_ERROR, \"pixel_countdown < 0 (%d)\\n\",\n\n pixel_countdown);\n\n }\n\n } else { /* copy bytes if byte_run < 0 */\n\n byte_run = -byte_run;\n\n CHECK_PIXEL_PTR(byte_run);\n\n for (j = 0; j < byte_run; j++) {\n\n palette_idx1 = buf[stream_ptr++];\n\n pixels[pixel_ptr++] = palette_idx1;\n\n pixel_countdown--;\n\n if (pixel_countdown < 0)\n\n av_log(avctx, AV_LOG_ERROR, \"pixel_countdown < 0 (%d)\\n\",\n\n pixel_countdown);\n\n }\n\n }\n\n }\n\n\n\n /* Now FLX is strange, in that it is \"byte\" as opposed to \"pixel\" run length compressed.\n\n * This doesnt give us any good oportunity to perform word endian conversion\n\n * during decompression. So if its requried (ie, this isnt a LE target, we do\n\n * a second pass over the line here, swapping the bytes.\n\n */\n\n pixel = 0xFF00;\n\n if (0xFF00 != LE_16(&pixel)) /* Check if its not an LE Target */\n\n {\n\n pixel_ptr = y_ptr;\n\n pixel_countdown = s->avctx->width;\n\n while (pixel_countdown > 0) {\n\n *((signed short*)(&pixels[pixel_ptr])) = LE_16(&buf[pixel_ptr]);\n\n pixel_ptr += 2;\n\n }\n\n }\n\n y_ptr += s->frame.linesize[0];\n\n }\n\n break;\n\n\n\n case FLI_DTA_BRUN:\n\n y_ptr = 0;\n\n for (lines = 0; lines < s->avctx->height; lines++) {\n\n pixel_ptr = y_ptr;\n\n /* disregard the line packets; instead, iterate through all\n\n * pixels on a row */\n\n stream_ptr++;\n\n pixel_countdown = s->avctx->width; /* Width is in pixels, not bytes */\n\n\n\n while (pixel_countdown > 0) {\n\n byte_run = (signed char)(buf[stream_ptr++]);\n\n if (byte_run > 0) {\n\n pixel = LE_16(&buf[stream_ptr]);\n\n stream_ptr += 2;\n\n CHECK_PIXEL_PTR(byte_run);\n\n for (j = 0; j < byte_run; j++) {\n\n *((signed short*)(&pixels[pixel_ptr])) = pixel;\n\n pixel_ptr += 2;\n\n pixel_countdown--;\n\n if (pixel_countdown < 0)\n\n av_log(avctx, AV_LOG_ERROR, \"pixel_countdown < 0 (%d)\\n\",\n\n pixel_countdown);\n\n }\n\n } else { /* copy pixels if byte_run < 0 */\n\n byte_run = -byte_run;\n\n CHECK_PIXEL_PTR(byte_run);\n\n for (j = 0; j < byte_run; j++) {\n\n *((signed short*)(&pixels[pixel_ptr])) = LE_16(&buf[stream_ptr]);\n\n stream_ptr += 2;\n\n pixel_ptr += 2;\n\n pixel_countdown--;\n\n if (pixel_countdown < 0)\n\n av_log(avctx, AV_LOG_ERROR, \"pixel_countdown < 0 (%d)\\n\",\n\n pixel_countdown);\n\n }\n\n }\n\n }\n\n\n\n y_ptr += s->frame.linesize[0];\n\n }\n\n break;\n\n\n\n case FLI_COPY:\n\n case FLI_DTA_COPY:\n\n /* copy the chunk (uncompressed frame) */\n\n if (chunk_size - 6 > (unsigned int)(s->avctx->width * s->avctx->height)*2) {\n\n av_log(avctx, AV_LOG_ERROR, \"In chunk FLI_COPY : source data (%d bytes) \" \\\n\n \"bigger than image, skipping chunk\\n\", chunk_size - 6);\n\n stream_ptr += chunk_size - 6;\n\n } else {\n\n\n\n for (y_ptr = 0; y_ptr < s->frame.linesize[0] * s->avctx->height;\n\n y_ptr += s->frame.linesize[0]) {\n\n\n\n pixel_countdown = s->avctx->width;\n\n pixel_ptr = 0;\n\n while (pixel_countdown > 0) {\n\n *((signed short*)(&pixels[y_ptr + pixel_ptr])) = LE_16(&buf[stream_ptr+pixel_ptr]);\n\n pixel_ptr += 2;\n\n pixel_countdown--;\n\n }\n\n stream_ptr += s->avctx->width*2;\n\n }\n\n }\n\n break;\n\n\n\n case FLI_MINI:\n\n /* some sort of a thumbnail? disregard this chunk... */\n\n stream_ptr += chunk_size - 6;\n\n break;\n\n\n\n default:\n\n av_log(avctx, AV_LOG_ERROR, \"Unrecognized chunk type: %d\\n\", chunk_type);\n\n break;\n\n }\n\n\n\n frame_size -= chunk_size;\n\n num_chunks--;\n\n }\n\n\n\n /* by the end of the chunk, the stream ptr should equal the frame\n\n * size (minus 1, possibly); if it doesn't, issue a warning */\n\n if ((stream_ptr != buf_size) && (stream_ptr != buf_size - 1))\n\n av_log(avctx, AV_LOG_ERROR, \"Processed FLI chunk where chunk size = %d \" \\\n\n \"and final chunk ptr = %d\\n\", buf_size, stream_ptr);\n\n\n\n\n\n *data_size=sizeof(AVFrame);\n\n *(AVFrame*)data = s->frame;\n\n\n\n return buf_size;\n\n}\n", + "output": "1", + "index": 18029 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "inline static void RENAME(hcscale)(SwsContext *c, uint16_t *dst, long dstWidth, uint8_t *src1, uint8_t *src2,\n\n int srcW, int xInc, int flags, int canMMX2BeUsed, int16_t *hChrFilter,\n\n int16_t *hChrFilterPos, int hChrFilterSize, void *funnyUVCode,\n\n int srcFormat, uint8_t *formatConvBuffer, int16_t *mmx2Filter,\n\n int32_t *mmx2FilterPos, uint8_t *pal)\n\n{\n\n if (srcFormat==PIX_FMT_YUYV422)\n\n {\n\n RENAME(yuy2ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);\n\n src1= formatConvBuffer;\n\n src2= formatConvBuffer+VOFW;\n\n }\n\n else if (srcFormat==PIX_FMT_UYVY422)\n\n {\n\n RENAME(uyvyToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);\n\n src1= formatConvBuffer;\n\n src2= formatConvBuffer+VOFW;\n\n }\n\n else if (srcFormat==PIX_FMT_RGB32)\n\n {\n\n RENAME(bgr32ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);\n\n src1= formatConvBuffer;\n\n src2= formatConvBuffer+VOFW;\n\n }\n\n else if (srcFormat==PIX_FMT_RGB32_1)\n\n {\n\n RENAME(bgr32ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1+ALT32_CORR, src2+ALT32_CORR, srcW);\n\n src1= formatConvBuffer;\n\n src2= formatConvBuffer+VOFW;\n\n }\n\n else if (srcFormat==PIX_FMT_BGR24)\n\n {\n\n RENAME(bgr24ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);\n\n src1= formatConvBuffer;\n\n src2= formatConvBuffer+VOFW;\n\n }\n\n else if (srcFormat==PIX_FMT_BGR565)\n\n {\n\n RENAME(bgr16ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);\n\n src1= formatConvBuffer;\n\n src2= formatConvBuffer+VOFW;\n\n }\n\n else if (srcFormat==PIX_FMT_BGR555)\n\n {\n\n RENAME(bgr15ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);\n\n src1= formatConvBuffer;\n\n src2= formatConvBuffer+VOFW;\n\n }\n\n else if (srcFormat==PIX_FMT_BGR32)\n\n {\n\n RENAME(rgb32ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);\n\n src1= formatConvBuffer;\n\n src2= formatConvBuffer+VOFW;\n\n }\n\n else if (srcFormat==PIX_FMT_BGR32_1)\n\n {\n\n RENAME(rgb32ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1+ALT32_CORR, src2+ALT32_CORR, srcW);\n\n src1= formatConvBuffer;\n\n src2= formatConvBuffer+VOFW;\n\n }\n\n else if (srcFormat==PIX_FMT_RGB24)\n\n {\n\n RENAME(rgb24ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);\n\n src1= formatConvBuffer;\n\n src2= formatConvBuffer+VOFW;\n\n }\n\n else if (srcFormat==PIX_FMT_RGB565)\n\n {\n\n RENAME(rgb16ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);\n\n src1= formatConvBuffer;\n\n src2= formatConvBuffer+VOFW;\n\n }\n\n else if (srcFormat==PIX_FMT_RGB555)\n\n {\n\n RENAME(rgb15ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);\n\n src1= formatConvBuffer;\n\n src2= formatConvBuffer+VOFW;\n\n }\n\n else if (isGray(srcFormat))\n\n {\n\n return;\n\n }\n\n else if (srcFormat==PIX_FMT_RGB8 || srcFormat==PIX_FMT_BGR8 || srcFormat==PIX_FMT_PAL8 || srcFormat==PIX_FMT_BGR4_BYTE || srcFormat==PIX_FMT_RGB4_BYTE)\n\n {\n\n RENAME(palToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW, (uint32_t*)pal);\n\n src1= formatConvBuffer;\n\n src2= formatConvBuffer+VOFW;\n\n }\n\n\n\n#ifdef HAVE_MMX\n\n // Use the new MMX scaler if the MMX2 one can't be used (it is faster than the x86 ASM one).\n\n if (!(flags&SWS_FAST_BILINEAR) || (!canMMX2BeUsed))\n\n#else\n\n if (!(flags&SWS_FAST_BILINEAR))\n\n#endif\n\n {\n\n RENAME(hScale)(dst , dstWidth, src1, srcW, xInc, hChrFilter, hChrFilterPos, hChrFilterSize);\n\n RENAME(hScale)(dst+VOFW, dstWidth, src2, srcW, xInc, hChrFilter, hChrFilterPos, hChrFilterSize);\n\n }\n\n else // fast bilinear upscale / crap downscale\n\n {\n\n#if defined(ARCH_X86)\n\n#ifdef HAVE_MMX2\n\n int i;\n\n#if defined(PIC)\n\n uint64_t ebxsave __attribute__((aligned(8)));\n\n#endif\n\n if (canMMX2BeUsed)\n\n {\n\n asm volatile(\n\n#if defined(PIC)\n\n \"mov %%\"REG_b\", %6 \\n\\t\"\n\n#endif\n\n \"pxor %%mm7, %%mm7 \\n\\t\"\n\n \"mov %0, %%\"REG_c\" \\n\\t\"\n\n \"mov %1, %%\"REG_D\" \\n\\t\"\n\n \"mov %2, %%\"REG_d\" \\n\\t\"\n\n \"mov %3, %%\"REG_b\" \\n\\t\"\n\n \"xor %%\"REG_a\", %%\"REG_a\" \\n\\t\" // i\n\n PREFETCH\" (%%\"REG_c\") \\n\\t\"\n\n PREFETCH\" 32(%%\"REG_c\") \\n\\t\"\n\n PREFETCH\" 64(%%\"REG_c\") \\n\\t\"\n\n\n\n#ifdef ARCH_X86_64\n\n\n\n#define FUNNY_UV_CODE \\\n\n \"movl (%%\"REG_b\"), %%esi \\n\\t\"\\\n\n \"call *%4 \\n\\t\"\\\n\n \"movl (%%\"REG_b\", %%\"REG_a\"), %%esi \\n\\t\"\\\n\n \"add %%\"REG_S\", %%\"REG_c\" \\n\\t\"\\\n\n \"add %%\"REG_a\", %%\"REG_D\" \\n\\t\"\\\n\n \"xor %%\"REG_a\", %%\"REG_a\" \\n\\t\"\\\n\n\n\n#else\n\n\n\n#define FUNNY_UV_CODE \\\n\n \"movl (%%\"REG_b\"), %%esi \\n\\t\"\\\n\n \"call *%4 \\n\\t\"\\\n\n \"addl (%%\"REG_b\", %%\"REG_a\"), %%\"REG_c\" \\n\\t\"\\\n\n \"add %%\"REG_a\", %%\"REG_D\" \\n\\t\"\\\n\n \"xor %%\"REG_a\", %%\"REG_a\" \\n\\t\"\\\n\n\n\n#endif /* ARCH_X86_64 */\n\n\n\nFUNNY_UV_CODE\n\nFUNNY_UV_CODE\n\nFUNNY_UV_CODE\n\nFUNNY_UV_CODE\n\n \"xor %%\"REG_a\", %%\"REG_a\" \\n\\t\" // i\n\n \"mov %5, %%\"REG_c\" \\n\\t\" // src\n\n \"mov %1, %%\"REG_D\" \\n\\t\" // buf1\n\n \"add $\"AV_STRINGIFY(VOF)\", %%\"REG_D\" \\n\\t\"\n\n PREFETCH\" (%%\"REG_c\") \\n\\t\"\n\n PREFETCH\" 32(%%\"REG_c\") \\n\\t\"\n\n PREFETCH\" 64(%%\"REG_c\") \\n\\t\"\n\n\n\nFUNNY_UV_CODE\n\nFUNNY_UV_CODE\n\nFUNNY_UV_CODE\n\nFUNNY_UV_CODE\n\n\n\n#if defined(PIC)\n\n \"mov %6, %%\"REG_b\" \\n\\t\"\n\n#endif\n\n :: \"m\" (src1), \"m\" (dst), \"m\" (mmx2Filter), \"m\" (mmx2FilterPos),\n\n \"m\" (funnyUVCode), \"m\" (src2)\n\n#if defined(PIC)\n\n ,\"m\" (ebxsave)\n\n#endif\n\n : \"%\"REG_a, \"%\"REG_c, \"%\"REG_d, \"%\"REG_S, \"%\"REG_D\n\n#if !defined(PIC)\n\n ,\"%\"REG_b\n\n#endif\n\n );\n\n for (i=dstWidth-1; (i*xInc)>>16 >=srcW-1; i--)\n\n {\n\n //printf(\"%d %d %d\\n\", dstWidth, i, srcW);\n\n dst[i] = src1[srcW-1]*128;\n\n dst[i+VOFW] = src2[srcW-1]*128;\n\n }\n\n }\n\n else\n\n {\n\n#endif /* HAVE_MMX2 */\n\n long xInc_shr16 = (long) (xInc >> 16);\n\n uint16_t xInc_mask = xInc & 0xffff;\n\n asm volatile(\n\n \"xor %%\"REG_a\", %%\"REG_a\" \\n\\t\" // i\n\n \"xor %%\"REG_d\", %%\"REG_d\" \\n\\t\" // xx\n\n \"xorl %%ecx, %%ecx \\n\\t\" // 2*xalpha\n\n ASMALIGN(4)\n\n \"1: \\n\\t\"\n\n \"mov %0, %%\"REG_S\" \\n\\t\"\n\n \"movzbl (%%\"REG_S\", %%\"REG_d\"), %%edi \\n\\t\" //src[xx]\n\n \"movzbl 1(%%\"REG_S\", %%\"REG_d\"), %%esi \\n\\t\" //src[xx+1]\n\n \"subl %%edi, %%esi \\n\\t\" //src[xx+1] - src[xx]\n\n \"imull %%ecx, %%esi \\n\\t\" //(src[xx+1] - src[xx])*2*xalpha\n\n \"shll $16, %%edi \\n\\t\"\n\n \"addl %%edi, %%esi \\n\\t\" //src[xx+1]*2*xalpha + src[xx]*(1-2*xalpha)\n\n \"mov %1, %%\"REG_D\" \\n\\t\"\n\n \"shrl $9, %%esi \\n\\t\"\n\n \"movw %%si, (%%\"REG_D\", %%\"REG_a\", 2) \\n\\t\"\n\n\n\n \"movzbl (%5, %%\"REG_d\"), %%edi \\n\\t\" //src[xx]\n\n \"movzbl 1(%5, %%\"REG_d\"), %%esi \\n\\t\" //src[xx+1]\n\n \"subl %%edi, %%esi \\n\\t\" //src[xx+1] - src[xx]\n\n \"imull %%ecx, %%esi \\n\\t\" //(src[xx+1] - src[xx])*2*xalpha\n\n \"shll $16, %%edi \\n\\t\"\n\n \"addl %%edi, %%esi \\n\\t\" //src[xx+1]*2*xalpha + src[xx]*(1-2*xalpha)\n\n \"mov %1, %%\"REG_D\" \\n\\t\"\n\n \"shrl $9, %%esi \\n\\t\"\n\n \"movw %%si, \"AV_STRINGIFY(VOF)\"(%%\"REG_D\", %%\"REG_a\", 2) \\n\\t\"\n\n\n\n \"addw %4, %%cx \\n\\t\" //2*xalpha += xInc&0xFF\n\n \"adc %3, %%\"REG_d\" \\n\\t\" //xx+= xInc>>8 + carry\n\n \"add $1, %%\"REG_a\" \\n\\t\"\n\n \"cmp %2, %%\"REG_a\" \\n\\t\"\n\n \" jb 1b \\n\\t\"\n\n\n\n/* GCC 3.3 makes MPlayer crash on IA-32 machines when using \"g\" operand here,\n\n which is needed to support GCC 4.0. */\n\n#if defined(ARCH_X86_64) && ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))\n\n :: \"m\" (src1), \"m\" (dst), \"g\" ((long)dstWidth), \"m\" (xInc_shr16), \"m\" (xInc_mask),\n\n#else\n\n :: \"m\" (src1), \"m\" (dst), \"m\" ((long)dstWidth), \"m\" (xInc_shr16), \"m\" (xInc_mask),\n\n#endif\n\n \"r\" (src2)\n\n : \"%\"REG_a, \"%\"REG_d, \"%ecx\", \"%\"REG_D, \"%esi\"\n\n );\n\n#ifdef HAVE_MMX2\n\n } //if MMX2 can't be used\n\n#endif\n\n#else\n\n int i;\n\n unsigned int xpos=0;\n\n for (i=0;i>16;\n\n register unsigned int xalpha=(xpos&0xFFFF)>>9;\n\n dst[i]=(src1[xx]*(xalpha^127)+src1[xx+1]*xalpha);\n\n dst[i+VOFW]=(src2[xx]*(xalpha^127)+src2[xx+1]*xalpha);\n\n /* slower\n\n dst[i]= (src1[xx]<<7) + (src1[xx+1] - src1[xx])*xalpha;\n\n dst[i+VOFW]=(src2[xx]<<7) + (src2[xx+1] - src2[xx])*xalpha;\n\n */\n\n xpos+=xInc;\n\n }\n\n#endif /* defined(ARCH_X86) */\n\n }\n\n if(c->srcRange != c->dstRange && !(isRGB(c->dstFormat) || isBGR(c->dstFormat))){\n\n int i;\n\n //FIXME all pal and rgb srcFormats could do this convertion as well\n\n //FIXME all scalers more complex than bilinear could do half of this transform\n\n if(c->srcRange){\n\n for (i=0; i>11; //1469\n\n dst[i+VOFW]= (dst[i+VOFW]*1799 + 4081085)>>11; //1469\n\n }\n\n }else{\n\n for (i=0; i>12; //-264\n\n dst[i+VOFW]= (dst[i+VOFW]*4663 - 9289992)>>12; //-264\n\n }\n\n }\n\n }\n\n}\n", + "output": "1", + "index": 12506 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static inline void gen_intermediate_code_internal(TranslationBlock * tb,\n\n int spc, CPUSPARCState *env)\n\n{\n\n target_ulong pc_start, last_pc;\n\n uint16_t *gen_opc_end;\n\n DisasContext dc1, *dc = &dc1;\n\n CPUBreakpoint *bp;\n\n int j, lj = -1;\n\n int num_insns;\n\n int max_insns;\n\n\n\n memset(dc, 0, sizeof(DisasContext));\n\n dc->tb = tb;\n\n pc_start = tb->pc;\n\n dc->pc = pc_start;\n\n last_pc = dc->pc;\n\n dc->npc = (target_ulong) tb->cs_base;\n\n dc->cc_op = CC_OP_DYNAMIC;\n\n dc->mem_idx = cpu_mmu_index(env);\n\n dc->def = env->def;\n\n if ((dc->def->features & CPU_FEATURE_FLOAT))\n\n dc->fpu_enabled = cpu_fpu_enabled(env);\n\n else\n\n dc->fpu_enabled = 0;\n\n#ifdef TARGET_SPARC64\n\n dc->address_mask_32bit = env->pstate & PS_AM;\n\n#endif\n\n gen_opc_end = gen_opc_buf + OPC_MAX_SIZE;\n\n\n\n cpu_tmp0 = tcg_temp_new();\n\n cpu_tmp32 = tcg_temp_new_i32();\n\n cpu_tmp64 = tcg_temp_new_i64();\n\n\n\n cpu_dst = tcg_temp_local_new();\n\n\n\n // loads and stores\n\n cpu_val = tcg_temp_local_new();\n\n cpu_addr = tcg_temp_local_new();\n\n\n\n num_insns = 0;\n\n max_insns = tb->cflags & CF_COUNT_MASK;\n\n if (max_insns == 0)\n\n max_insns = CF_COUNT_MASK;\n\n gen_icount_start();\n\n do {\n\n if (unlikely(!TAILQ_EMPTY(&env->breakpoints))) {\n\n TAILQ_FOREACH(bp, &env->breakpoints, entry) {\n\n if (bp->pc == dc->pc) {\n\n if (dc->pc != pc_start)\n\n save_state(dc, cpu_cond);\n\n gen_helper_debug();\n\n tcg_gen_exit_tb(0);\n\n dc->is_br = 1;\n\n goto exit_gen_loop;\n\n }\n\n }\n\n }\n\n if (spc) {\n\n qemu_log(\"Search PC...\\n\");\n\n j = gen_opc_ptr - gen_opc_buf;\n\n if (lj < j) {\n\n lj++;\n\n while (lj < j)\n\n gen_opc_instr_start[lj++] = 0;\n\n gen_opc_pc[lj] = dc->pc;\n\n gen_opc_npc[lj] = dc->npc;\n\n gen_opc_instr_start[lj] = 1;\n\n gen_opc_icount[lj] = num_insns;\n\n }\n\n }\n\n if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO))\n\n gen_io_start();\n\n last_pc = dc->pc;\n\n disas_sparc_insn(dc);\n\n num_insns++;\n\n\n\n if (dc->is_br)\n\n break;\n\n /* if the next PC is different, we abort now */\n\n if (dc->pc != (last_pc + 4))\n\n break;\n\n /* if we reach a page boundary, we stop generation so that the\n\n PC of a TT_TFAULT exception is always in the right page */\n\n if ((dc->pc & (TARGET_PAGE_SIZE - 1)) == 0)\n\n break;\n\n /* if single step mode, we generate only one instruction and\n\n generate an exception */\n\n if (env->singlestep_enabled || singlestep) {\n\n tcg_gen_movi_tl(cpu_pc, dc->pc);\n\n tcg_gen_exit_tb(0);\n\n break;\n\n }\n\n } while ((gen_opc_ptr < gen_opc_end) &&\n\n (dc->pc - pc_start) < (TARGET_PAGE_SIZE - 32) &&\n\n num_insns < max_insns);\n\n\n\n exit_gen_loop:\n\n tcg_temp_free(cpu_addr);\n\n tcg_temp_free(cpu_val);\n\n tcg_temp_free(cpu_dst);\n\n tcg_temp_free_i64(cpu_tmp64);\n\n tcg_temp_free_i32(cpu_tmp32);\n\n tcg_temp_free(cpu_tmp0);\n\n if (tb->cflags & CF_LAST_IO)\n\n gen_io_end();\n\n if (!dc->is_br) {\n\n if (dc->pc != DYNAMIC_PC &&\n\n (dc->npc != DYNAMIC_PC && dc->npc != JUMP_PC)) {\n\n /* static PC and NPC: we can use direct chaining */\n\n gen_goto_tb(dc, 0, dc->pc, dc->npc);\n\n } else {\n\n if (dc->pc != DYNAMIC_PC)\n\n tcg_gen_movi_tl(cpu_pc, dc->pc);\n\n save_npc(dc, cpu_cond);\n\n tcg_gen_exit_tb(0);\n\n }\n\n }\n\n gen_icount_end(tb, num_insns);\n\n *gen_opc_ptr = INDEX_op_end;\n\n if (spc) {\n\n j = gen_opc_ptr - gen_opc_buf;\n\n lj++;\n\n while (lj <= j)\n\n gen_opc_instr_start[lj++] = 0;\n\n#if 0\n\n log_page_dump();\n\n#endif\n\n gen_opc_jump_pc[0] = dc->jump_pc[0];\n\n gen_opc_jump_pc[1] = dc->jump_pc[1];\n\n } else {\n\n tb->size = last_pc + 4 - pc_start;\n\n tb->icount = num_insns;\n\n }\n\n#ifdef DEBUG_DISAS\n\n if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {\n\n qemu_log(\"--------------\\n\");\n\n qemu_log(\"IN: %s\\n\", lookup_symbol(pc_start));\n\n log_target_disas(pc_start, last_pc + 4 - pc_start, 0);\n\n qemu_log(\"\\n\");\n\n }\n\n#endif\n\n}\n", + "output": "0", + "index": 16953 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int ff_vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb)\n\n{\n\n int pqindex, lowquant;\n\n int status;\n\n int mbmodetab, imvtab, icbptab, twomvbptab, fourmvbptab; /* useful only for debugging */\n\n int field_mode, fcm;\n\n\n\n v->numref = 0;\n\n v->p_frame_skipped = 0;\n\n if (v->second_field) {\n\n v->s.pict_type = (v->fptype & 1) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;\n\n if (v->fptype & 4)\n\n v->s.pict_type = (v->fptype & 1) ? AV_PICTURE_TYPE_BI : AV_PICTURE_TYPE_B;\n\n v->s.current_picture_ptr->f.pict_type = v->s.pict_type;\n\n if (!v->pic_header_flag)\n\n goto parse_common_info;\n\n }\n\n\n\n field_mode = 0;\n\n if (v->interlace) {\n\n fcm = decode012(gb);\n\n if (fcm) {\n\n if (fcm == ILACE_FIELD)\n\n field_mode = 1;\n\n }\n\n } else {\n\n fcm = PROGRESSIVE;\n\n }\n\n if (!v->first_pic_header_flag && v->field_mode != field_mode)\n\n return AVERROR_INVALIDDATA;\n\n v->field_mode = field_mode;\n\n v->fcm = fcm;\n\n\n\n if (v->field_mode) {\n\n v->s.mb_height = FFALIGN(v->s.height + 15 >> 4, 2);\n\n v->fptype = get_bits(gb, 3);\n\n v->s.pict_type = (v->fptype & 2) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;\n\n if (v->fptype & 4) // B-picture\n\n v->s.pict_type = (v->fptype & 2) ? AV_PICTURE_TYPE_BI : AV_PICTURE_TYPE_B;\n\n } else {\n\n v->s.mb_height = v->s.height + 15 >> 4;\n\n switch (get_unary(gb, 0, 4)) {\n\n case 0:\n\n v->s.pict_type = AV_PICTURE_TYPE_P;\n\n break;\n\n case 1:\n\n v->s.pict_type = AV_PICTURE_TYPE_B;\n\n break;\n\n case 2:\n\n v->s.pict_type = AV_PICTURE_TYPE_I;\n\n break;\n\n case 3:\n\n v->s.pict_type = AV_PICTURE_TYPE_BI;\n\n break;\n\n case 4:\n\n v->s.pict_type = AV_PICTURE_TYPE_P; // skipped pic\n\n v->p_frame_skipped = 1;\n\n break;\n\n }\n\n }\n\n if (v->tfcntrflag)\n\n skip_bits(gb, 8);\n\n if (v->broadcast) {\n\n if (!v->interlace || v->psf) {\n\n v->rptfrm = get_bits(gb, 2);\n\n } else {\n\n v->tff = get_bits1(gb);\n\n v->rff = get_bits1(gb);\n\n }\n\n }\n\n if (v->panscanflag) {\n\n avpriv_report_missing_feature(v->s.avctx, \"Pan-scan\");\n\n //...\n\n }\n\n if (v->p_frame_skipped) {\n\n return 0;\n\n }\n\n v->rnd = get_bits1(gb);\n\n if (v->interlace)\n\n v->uvsamp = get_bits1(gb);\n\n if (v->field_mode) {\n\n if (!v->refdist_flag)\n\n v->refdist = 0;\n\n else if ((v->s.pict_type != AV_PICTURE_TYPE_B) && (v->s.pict_type != AV_PICTURE_TYPE_BI)) {\n\n v->refdist = get_bits(gb, 2);\n\n if (v->refdist == 3)\n\n v->refdist += get_unary(gb, 0, 16);\n\n }\n\n if ((v->s.pict_type == AV_PICTURE_TYPE_B) || (v->s.pict_type == AV_PICTURE_TYPE_BI)) {\n\n v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);\n\n v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];\n\n v->frfd = (v->bfraction * v->refdist) >> 8;\n\n v->brfd = v->refdist - v->frfd - 1;\n\n if (v->brfd < 0)\n\n v->brfd = 0;\n\n }\n\n goto parse_common_info;\n\n }\n\n if (v->fcm == PROGRESSIVE) {\n\n if (v->finterpflag)\n\n v->interpfrm = get_bits1(gb);\n\n if (v->s.pict_type == AV_PICTURE_TYPE_B) {\n\n v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);\n\n v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];\n\n if (v->bfraction == 0) {\n\n v->s.pict_type = AV_PICTURE_TYPE_BI; /* XXX: should not happen here */\n\n }\n\n }\n\n }\n\n\n\n parse_common_info:\n\n if (v->field_mode)\n\n v->cur_field_type = !(v->tff ^ v->second_field);\n\n pqindex = get_bits(gb, 5);\n\n if (!pqindex)\n\n return -1;\n\n v->pqindex = pqindex;\n\n if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)\n\n v->pq = ff_vc1_pquant_table[0][pqindex];\n\n else\n\n v->pq = ff_vc1_pquant_table[1][pqindex];\n\n\n\n v->pquantizer = 1;\n\n if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)\n\n v->pquantizer = pqindex < 9;\n\n if (v->quantizer_mode == QUANT_NON_UNIFORM)\n\n v->pquantizer = 0;\n\n v->pqindex = pqindex;\n\n if (pqindex < 9)\n\n v->halfpq = get_bits1(gb);\n\n else\n\n v->halfpq = 0;\n\n if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)\n\n v->pquantizer = get_bits1(gb);\n\n if (v->postprocflag)\n\n v->postproc = get_bits(gb, 2);\n\n\n\n if (v->parse_only)\n\n return 0;\n\n\n\n if (v->first_pic_header_flag)\n\n rotate_luts(v);\n\n\n\n switch (v->s.pict_type) {\n\n case AV_PICTURE_TYPE_I:\n\n case AV_PICTURE_TYPE_BI:\n\n if (v->fcm == ILACE_FRAME) { //interlace frame picture\n\n status = bitplane_decoding(v->fieldtx_plane, &v->fieldtx_is_raw, v);\n\n if (status < 0)\n\n return -1;\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"FIELDTX plane encoding: \"\n\n \"Imode: %i, Invert: %i\\n\", status>>1, status&1);\n\n }\n\n status = bitplane_decoding(v->acpred_plane, &v->acpred_is_raw, v);\n\n if (status < 0)\n\n return -1;\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"ACPRED plane encoding: \"\n\n \"Imode: %i, Invert: %i\\n\", status>>1, status&1);\n\n v->condover = CONDOVER_NONE;\n\n if (v->overlap && v->pq <= 8) {\n\n v->condover = decode012(gb);\n\n if (v->condover == CONDOVER_SELECT) {\n\n status = bitplane_decoding(v->over_flags_plane, &v->overflg_is_raw, v);\n\n if (status < 0)\n\n return -1;\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"CONDOVER plane encoding: \"\n\n \"Imode: %i, Invert: %i\\n\", status>>1, status&1);\n\n }\n\n }\n\n break;\n\n case AV_PICTURE_TYPE_P:\n\n if (v->field_mode) {\n\n v->numref = get_bits1(gb);\n\n if (!v->numref) {\n\n v->reffield = get_bits1(gb);\n\n v->ref_field_type[0] = v->reffield ^ !v->cur_field_type;\n\n }\n\n }\n\n if (v->extended_mv)\n\n v->mvrange = get_unary(gb, 0, 3);\n\n else\n\n v->mvrange = 0;\n\n if (v->interlace) {\n\n if (v->extended_dmv)\n\n v->dmvrange = get_unary(gb, 0, 3);\n\n else\n\n v->dmvrange = 0;\n\n if (v->fcm == ILACE_FRAME) { // interlaced frame picture\n\n v->fourmvswitch = get_bits1(gb);\n\n v->intcomp = get_bits1(gb);\n\n if (v->intcomp) {\n\n v->lumscale = get_bits(gb, 6);\n\n v->lumshift = get_bits(gb, 6);\n\n INIT_LUT(v->lumscale, v->lumshift, v->last_luty[0], v->last_lutuv[0], 1);\n\n INIT_LUT(v->lumscale, v->lumshift, v->last_luty[1], v->last_lutuv[1], 1);\n\n v->last_use_ic = 1;\n\n }\n\n status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"SKIPMB plane encoding: \"\n\n \"Imode: %i, Invert: %i\\n\", status>>1, status&1);\n\n mbmodetab = get_bits(gb, 2);\n\n if (v->fourmvswitch)\n\n v->mbmode_vlc = &ff_vc1_intfr_4mv_mbmode_vlc[mbmodetab];\n\n else\n\n v->mbmode_vlc = &ff_vc1_intfr_non4mv_mbmode_vlc[mbmodetab];\n\n imvtab = get_bits(gb, 2);\n\n v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];\n\n // interlaced p-picture cbpcy range is [1, 63]\n\n icbptab = get_bits(gb, 3);\n\n v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];\n\n twomvbptab = get_bits(gb, 2);\n\n v->twomvbp_vlc = &ff_vc1_2mv_block_pattern_vlc[twomvbptab];\n\n if (v->fourmvswitch) {\n\n fourmvbptab = get_bits(gb, 2);\n\n v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];\n\n }\n\n }\n\n }\n\n v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13\n\n v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11\n\n v->range_x = 1 << (v->k_x - 1);\n\n v->range_y = 1 << (v->k_y - 1);\n\n\n\n if (v->pq < 5)\n\n v->tt_index = 0;\n\n else if (v->pq < 13)\n\n v->tt_index = 1;\n\n else\n\n v->tt_index = 2;\n\n if (v->fcm != ILACE_FRAME) {\n\n int mvmode;\n\n mvmode = get_unary(gb, 1, 4);\n\n lowquant = (v->pq > 12) ? 0 : 1;\n\n v->mv_mode = ff_vc1_mv_pmode_table[lowquant][mvmode];\n\n if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {\n\n int mvmode2;\n\n mvmode2 = get_unary(gb, 1, 3);\n\n v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][mvmode2];\n\n if (v->field_mode) {\n\n v->intcompfield = decode210(gb) ^ 3;\n\n } else\n\n v->intcompfield = 3;\n\n\n\n v->lumscale2 = v->lumscale = 32;\n\n v->lumshift2 = v->lumshift = 0;\n\n if (v->intcompfield & 1) {\n\n v->lumscale = get_bits(gb, 6);\n\n v->lumshift = get_bits(gb, 6);\n\n }\n\n if ((v->intcompfield & 2) && v->field_mode) {\n\n v->lumscale2 = get_bits(gb, 6);\n\n v->lumshift2 = get_bits(gb, 6);\n\n } else if(!v->field_mode) {\n\n v->lumscale2 = v->lumscale;\n\n v->lumshift2 = v->lumshift;\n\n }\n\n if (v->field_mode && v->second_field) {\n\n if (v->cur_field_type) {\n\n INIT_LUT(v->lumscale , v->lumshift , v->curr_luty[v->cur_field_type^1], v->curr_lutuv[v->cur_field_type^1], 0);\n\n INIT_LUT(v->lumscale2, v->lumshift2, v->last_luty[v->cur_field_type ], v->last_lutuv[v->cur_field_type ], 1);\n\n } else {\n\n INIT_LUT(v->lumscale2, v->lumshift2, v->curr_luty[v->cur_field_type^1], v->curr_lutuv[v->cur_field_type^1], 0);\n\n INIT_LUT(v->lumscale , v->lumshift , v->last_luty[v->cur_field_type ], v->last_lutuv[v->cur_field_type ], 1);\n\n }\n\n v->next_use_ic = v->curr_use_ic = 1;\n\n } else {\n\n INIT_LUT(v->lumscale , v->lumshift , v->last_luty[0], v->last_lutuv[0], 1);\n\n INIT_LUT(v->lumscale2, v->lumshift2, v->last_luty[1], v->last_lutuv[1], 1);\n\n }\n\n v->last_use_ic = 1;\n\n }\n\n v->qs_last = v->s.quarter_sample;\n\n if (v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)\n\n v->s.quarter_sample = 0;\n\n else if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {\n\n if (v->mv_mode2 == MV_PMODE_1MV_HPEL || v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)\n\n v->s.quarter_sample = 0;\n\n else\n\n v->s.quarter_sample = 1;\n\n } else\n\n v->s.quarter_sample = 1;\n\n v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN\n\n || (v->mv_mode == MV_PMODE_INTENSITY_COMP\n\n && v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN));\n\n }\n\n if (v->fcm == PROGRESSIVE) { // progressive\n\n if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&\n\n v->mv_mode2 == MV_PMODE_MIXED_MV)\n\n || v->mv_mode == MV_PMODE_MIXED_MV) {\n\n status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);\n\n if (status < 0)\n\n return -1;\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"MB MV Type plane encoding: \"\n\n \"Imode: %i, Invert: %i\\n\", status>>1, status&1);\n\n } else {\n\n v->mv_type_is_raw = 0;\n\n memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);\n\n }\n\n status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);\n\n if (status < 0)\n\n return -1;\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"MB Skip plane encoding: \"\n\n \"Imode: %i, Invert: %i\\n\", status>>1, status&1);\n\n\n\n /* Hopefully this is correct for P frames */\n\n v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables\n\n v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];\n\n } else if (v->fcm == ILACE_FRAME) { // frame interlaced\n\n v->qs_last = v->s.quarter_sample;\n\n v->s.quarter_sample = 1;\n\n v->s.mspel = 1;\n\n } else { // field interlaced\n\n mbmodetab = get_bits(gb, 3);\n\n imvtab = get_bits(gb, 2 + v->numref);\n\n if (!v->numref)\n\n v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];\n\n else\n\n v->imv_vlc = &ff_vc1_2ref_mvdata_vlc[imvtab];\n\n icbptab = get_bits(gb, 3);\n\n v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];\n\n if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&\n\n v->mv_mode2 == MV_PMODE_MIXED_MV) || v->mv_mode == MV_PMODE_MIXED_MV) {\n\n fourmvbptab = get_bits(gb, 2);\n\n v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];\n\n v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[mbmodetab];\n\n } else {\n\n v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[mbmodetab];\n\n }\n\n }\n\n if (v->dquant) {\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"VOP DQuant info\\n\");\n\n vop_dquant_decoding(v);\n\n }\n\n\n\n v->ttfrm = 0; //FIXME Is that so ?\n\n if (v->vstransform) {\n\n v->ttmbf = get_bits1(gb);\n\n if (v->ttmbf) {\n\n v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];\n\n }\n\n } else {\n\n v->ttmbf = 1;\n\n v->ttfrm = TT_8X8;\n\n }\n\n break;\n\n case AV_PICTURE_TYPE_B:\n\n if (v->fcm == ILACE_FRAME) {\n\n v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);\n\n v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];\n\n if (v->bfraction == 0) {\n\n return -1;\n\n }\n\n }\n\n if (v->extended_mv)\n\n v->mvrange = get_unary(gb, 0, 3);\n\n else\n\n v->mvrange = 0;\n\n v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13\n\n v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11\n\n v->range_x = 1 << (v->k_x - 1);\n\n v->range_y = 1 << (v->k_y - 1);\n\n\n\n if (v->pq < 5)\n\n v->tt_index = 0;\n\n else if (v->pq < 13)\n\n v->tt_index = 1;\n\n else\n\n v->tt_index = 2;\n\n\n\n if (v->field_mode) {\n\n int mvmode;\n\n if (v->extended_dmv)\n\n v->dmvrange = get_unary(gb, 0, 3);\n\n mvmode = get_unary(gb, 1, 3);\n\n lowquant = (v->pq > 12) ? 0 : 1;\n\n v->mv_mode = ff_vc1_mv_pmode_table2[lowquant][mvmode];\n\n v->qs_last = v->s.quarter_sample;\n\n v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV || v->mv_mode == MV_PMODE_MIXED_MV);\n\n v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN || v->mv_mode == MV_PMODE_1MV_HPEL);\n\n status = bitplane_decoding(v->forward_mb_plane, &v->fmb_is_raw, v);\n\n if (status < 0)\n\n return -1;\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"MB Forward Type plane encoding: \"\n\n \"Imode: %i, Invert: %i\\n\", status>>1, status&1);\n\n mbmodetab = get_bits(gb, 3);\n\n if (v->mv_mode == MV_PMODE_MIXED_MV)\n\n v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[mbmodetab];\n\n else\n\n v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[mbmodetab];\n\n imvtab = get_bits(gb, 3);\n\n v->imv_vlc = &ff_vc1_2ref_mvdata_vlc[imvtab];\n\n icbptab = get_bits(gb, 3);\n\n v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];\n\n if (v->mv_mode == MV_PMODE_MIXED_MV) {\n\n fourmvbptab = get_bits(gb, 2);\n\n v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];\n\n }\n\n v->numref = 1; // interlaced field B pictures are always 2-ref\n\n } else if (v->fcm == ILACE_FRAME) {\n\n if (v->extended_dmv)\n\n v->dmvrange = get_unary(gb, 0, 3);\n\n if (get_bits1(gb)) /* intcomp - present but shall always be 0 */\n\n av_log(v->s.avctx, AV_LOG_WARNING, \"Intensity compensation set for B picture\\n\");\n\n v->intcomp = 0;\n\n v->mv_mode = MV_PMODE_1MV;\n\n v->fourmvswitch = 0;\n\n v->qs_last = v->s.quarter_sample;\n\n v->s.quarter_sample = 1;\n\n v->s.mspel = 1;\n\n status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);\n\n if (status < 0)\n\n return -1;\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"MB Direct Type plane encoding: \"\n\n \"Imode: %i, Invert: %i\\n\", status>>1, status&1);\n\n status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);\n\n if (status < 0)\n\n return -1;\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"MB Skip plane encoding: \"\n\n \"Imode: %i, Invert: %i\\n\", status>>1, status&1);\n\n mbmodetab = get_bits(gb, 2);\n\n v->mbmode_vlc = &ff_vc1_intfr_non4mv_mbmode_vlc[mbmodetab];\n\n imvtab = get_bits(gb, 2);\n\n v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];\n\n // interlaced p/b-picture cbpcy range is [1, 63]\n\n icbptab = get_bits(gb, 3);\n\n v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];\n\n twomvbptab = get_bits(gb, 2);\n\n v->twomvbp_vlc = &ff_vc1_2mv_block_pattern_vlc[twomvbptab];\n\n fourmvbptab = get_bits(gb, 2);\n\n v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];\n\n } else {\n\n v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;\n\n v->qs_last = v->s.quarter_sample;\n\n v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);\n\n v->s.mspel = v->s.quarter_sample;\n\n status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);\n\n if (status < 0)\n\n return -1;\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"MB Direct Type plane encoding: \"\n\n \"Imode: %i, Invert: %i\\n\", status>>1, status&1);\n\n status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);\n\n if (status < 0)\n\n return -1;\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"MB Skip plane encoding: \"\n\n \"Imode: %i, Invert: %i\\n\", status>>1, status&1);\n\n v->s.mv_table_index = get_bits(gb, 2);\n\n v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];\n\n }\n\n\n\n if (v->dquant) {\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"VOP DQuant info\\n\");\n\n vop_dquant_decoding(v);\n\n }\n\n\n\n v->ttfrm = 0;\n\n if (v->vstransform) {\n\n v->ttmbf = get_bits1(gb);\n\n if (v->ttmbf) {\n\n v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];\n\n }\n\n } else {\n\n v->ttmbf = 1;\n\n v->ttfrm = TT_8X8;\n\n }\n\n break;\n\n }\n\n\n\n if (v->fcm != PROGRESSIVE && !v->s.quarter_sample) {\n\n v->range_x <<= 1;\n\n v->range_y <<= 1;\n\n }\n\n\n\n /* AC Syntax */\n\n v->c_ac_table_index = decode012(gb);\n\n if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI) {\n\n v->y_ac_table_index = decode012(gb);\n\n }\n\n /* DC Syntax */\n\n v->s.dc_table_index = get_bits1(gb);\n\n if ((v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)\n\n && v->dquant) {\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"VOP DQuant info\\n\");\n\n vop_dquant_decoding(v);\n\n }\n\n\n\n v->bi_type = 0;\n\n if (v->s.pict_type == AV_PICTURE_TYPE_BI) {\n\n v->s.pict_type = AV_PICTURE_TYPE_B;\n\n v->bi_type = 1;\n\n }\n\n return 0;\n\n}\n", + "output": "1", + "index": 17802 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void new_video_stream(AVFormatContext *oc, int file_idx)\n\n{\n\n AVStream *st;\n\n OutputStream *ost;\n\n AVCodecContext *video_enc;\n\n enum CodecID codec_id = CODEC_ID_NONE;\n\n AVCodec *codec= NULL;\n\n\n\n if(!video_stream_copy){\n\n if (video_codec_name) {\n\n codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,\n\n avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);\n\n codec = avcodec_find_encoder_by_name(video_codec_name);\n\n } else {\n\n codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);\n\n codec = avcodec_find_encoder(codec_id);\n\n }\n\n }\n\n\n\n ost = new_output_stream(oc, file_idx, codec);\n\n st = ost->st;\n\n if (!video_stream_copy) {\n\n ost->frame_aspect_ratio = frame_aspect_ratio;\n\n frame_aspect_ratio = 0;\n\n#if CONFIG_AVFILTER\n\n ost->avfilter= vfilters;\n\n vfilters = NULL;\n\n#endif\n\n }\n\n\n\n ost->bitstream_filters = video_bitstream_filters;\n\n video_bitstream_filters= NULL;\n\n\n\n st->codec->thread_count= thread_count;\n\n\n\n video_enc = st->codec;\n\n\n\n if(video_codec_tag)\n\n video_enc->codec_tag= video_codec_tag;\n\n\n\n if(oc->oformat->flags & AVFMT_GLOBALHEADER) {\n\n video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;\n\n }\n\n\n\n if (video_stream_copy) {\n\n st->stream_copy = 1;\n\n video_enc->codec_type = AVMEDIA_TYPE_VIDEO;\n\n video_enc->sample_aspect_ratio =\n\n st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);\n\n } else {\n\n const char *p;\n\n int i;\n\n\n\n if (frame_rate.num)\n\n ost->frame_rate = frame_rate;\n\n video_enc->codec_id = codec_id;\n\n set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);\n\n\n\n video_enc->width = frame_width;\n\n video_enc->height = frame_height;\n\n video_enc->pix_fmt = frame_pix_fmt;\n\n st->sample_aspect_ratio = video_enc->sample_aspect_ratio;\n\n\n\n if (intra_only)\n\n video_enc->gop_size = 0;\n\n if (video_qscale || same_quality) {\n\n video_enc->flags |= CODEC_FLAG_QSCALE;\n\n video_enc->global_quality = FF_QP2LAMBDA * video_qscale;\n\n }\n\n\n\n if(intra_matrix)\n\n video_enc->intra_matrix = intra_matrix;\n\n if(inter_matrix)\n\n video_enc->inter_matrix = inter_matrix;\n\n\n\n p= video_rc_override_string;\n\n for(i=0; p; i++){\n\n int start, end, q;\n\n int e=sscanf(p, \"%d,%d,%d\", &start, &end, &q);\n\n if(e!=3){\n\n fprintf(stderr, \"error parsing rc_override\\n\");\n\n ffmpeg_exit(1);\n\n }\n\n video_enc->rc_override=\n\n av_realloc(video_enc->rc_override,\n\n sizeof(RcOverride)*(i+1));\n\n video_enc->rc_override[i].start_frame= start;\n\n video_enc->rc_override[i].end_frame = end;\n\n if(q>0){\n\n video_enc->rc_override[i].qscale= q;\n\n video_enc->rc_override[i].quality_factor= 1.0;\n\n }\n\n else{\n\n video_enc->rc_override[i].qscale= 0;\n\n video_enc->rc_override[i].quality_factor= -q/100.0;\n\n }\n\n p= strchr(p, '/');\n\n if(p) p++;\n\n }\n\n video_enc->rc_override_count=i;\n\n if (!video_enc->rc_initial_buffer_occupancy)\n\n video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;\n\n video_enc->me_threshold= me_threshold;\n\n video_enc->intra_dc_precision= intra_dc_precision - 8;\n\n\n\n if (do_psnr)\n\n video_enc->flags|= CODEC_FLAG_PSNR;\n\n\n\n /* two pass mode */\n\n if (do_pass) {\n\n if (do_pass == 1) {\n\n video_enc->flags |= CODEC_FLAG_PASS1;\n\n } else {\n\n video_enc->flags |= CODEC_FLAG_PASS2;\n\n }\n\n }\n\n\n\n if (forced_key_frames)\n\n parse_forced_key_frames(forced_key_frames, ost, video_enc);\n\n }\n\n if (video_language) {\n\n av_dict_set(&st->metadata, \"language\", video_language, 0);\n\n av_freep(&video_language);\n\n }\n\n\n\n /* reset some key parameters */\n\n video_disable = 0;\n\n av_freep(&video_codec_name);\n\n av_freep(&forced_key_frames);\n\n video_stream_copy = 0;\n\n frame_pix_fmt = PIX_FMT_NONE;\n\n}\n", + "output": "0", + "index": 22993 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void gen_muldiv (DisasContext *ctx, uint32_t opc,\n\n int rs, int rt)\n\n{\n\n const char *opn = \"mul/div\";\n\n TCGv t0, t1;\n\n unsigned int acc;\n\n\n\n switch (opc) {\n\n case OPC_DIV:\n\n case OPC_DIVU:\n\n#if defined(TARGET_MIPS64)\n\n case OPC_DDIV:\n\n case OPC_DDIVU:\n\n#endif\n\n t0 = tcg_temp_local_new();\n\n t1 = tcg_temp_local_new();\n\n break;\n\n default:\n\n t0 = tcg_temp_new();\n\n t1 = tcg_temp_new();\n\n break;\n\n }\n\n\n\n gen_load_gpr(t0, rs);\n\n gen_load_gpr(t1, rt);\n\n switch (opc) {\n\n case OPC_DIV:\n\n {\n\n int l1 = gen_new_label();\n\n int l2 = gen_new_label();\n\n\n\n tcg_gen_ext32s_tl(t0, t0);\n\n tcg_gen_ext32s_tl(t1, t1);\n\n tcg_gen_brcondi_tl(TCG_COND_EQ, t1, 0, l1);\n\n tcg_gen_brcondi_tl(TCG_COND_NE, t0, INT_MIN, l2);\n\n tcg_gen_brcondi_tl(TCG_COND_NE, t1, -1, l2);\n\n\n\n tcg_gen_mov_tl(cpu_LO[0], t0);\n\n tcg_gen_movi_tl(cpu_HI[0], 0);\n\n tcg_gen_br(l1);\n\n gen_set_label(l2);\n\n tcg_gen_div_tl(cpu_LO[0], t0, t1);\n\n tcg_gen_rem_tl(cpu_HI[0], t0, t1);\n\n tcg_gen_ext32s_tl(cpu_LO[0], cpu_LO[0]);\n\n tcg_gen_ext32s_tl(cpu_HI[0], cpu_HI[0]);\n\n gen_set_label(l1);\n\n }\n\n opn = \"div\";\n\n break;\n\n case OPC_DIVU:\n\n {\n\n int l1 = gen_new_label();\n\n\n\n tcg_gen_ext32u_tl(t0, t0);\n\n tcg_gen_ext32u_tl(t1, t1);\n\n tcg_gen_brcondi_tl(TCG_COND_EQ, t1, 0, l1);\n\n tcg_gen_divu_tl(cpu_LO[0], t0, t1);\n\n tcg_gen_remu_tl(cpu_HI[0], t0, t1);\n\n tcg_gen_ext32s_tl(cpu_LO[0], cpu_LO[0]);\n\n tcg_gen_ext32s_tl(cpu_HI[0], cpu_HI[0]);\n\n gen_set_label(l1);\n\n }\n\n opn = \"divu\";\n\n break;\n\n case OPC_MULT:\n\n {\n\n TCGv_i64 t2 = tcg_temp_new_i64();\n\n TCGv_i64 t3 = tcg_temp_new_i64();\n\n acc = ((ctx->opcode) >> 11) & 0x03;\n\n if (acc != 0) {\n\n check_dsp(ctx);\n\n }\n\n\n\n tcg_gen_ext_tl_i64(t2, t0);\n\n tcg_gen_ext_tl_i64(t3, t1);\n\n tcg_gen_mul_i64(t2, t2, t3);\n\n tcg_temp_free_i64(t3);\n\n tcg_gen_trunc_i64_tl(t0, t2);\n\n tcg_gen_shri_i64(t2, t2, 32);\n\n tcg_gen_trunc_i64_tl(t1, t2);\n\n tcg_temp_free_i64(t2);\n\n tcg_gen_ext32s_tl(cpu_LO[acc], t0);\n\n tcg_gen_ext32s_tl(cpu_HI[acc], t1);\n\n }\n\n opn = \"mult\";\n\n break;\n\n case OPC_MULTU:\n\n {\n\n TCGv_i64 t2 = tcg_temp_new_i64();\n\n TCGv_i64 t3 = tcg_temp_new_i64();\n\n acc = ((ctx->opcode) >> 11) & 0x03;\n\n if (acc != 0) {\n\n check_dsp(ctx);\n\n }\n\n\n\n tcg_gen_ext32u_tl(t0, t0);\n\n tcg_gen_ext32u_tl(t1, t1);\n\n tcg_gen_extu_tl_i64(t2, t0);\n\n tcg_gen_extu_tl_i64(t3, t1);\n\n tcg_gen_mul_i64(t2, t2, t3);\n\n tcg_temp_free_i64(t3);\n\n tcg_gen_trunc_i64_tl(t0, t2);\n\n tcg_gen_shri_i64(t2, t2, 32);\n\n tcg_gen_trunc_i64_tl(t1, t2);\n\n tcg_temp_free_i64(t2);\n\n tcg_gen_ext32s_tl(cpu_LO[acc], t0);\n\n tcg_gen_ext32s_tl(cpu_HI[acc], t1);\n\n }\n\n opn = \"multu\";\n\n break;\n\n#if defined(TARGET_MIPS64)\n\n case OPC_DDIV:\n\n {\n\n int l1 = gen_new_label();\n\n int l2 = gen_new_label();\n\n\n\n tcg_gen_brcondi_tl(TCG_COND_EQ, t1, 0, l1);\n\n tcg_gen_brcondi_tl(TCG_COND_NE, t0, -1LL << 63, l2);\n\n tcg_gen_brcondi_tl(TCG_COND_NE, t1, -1LL, l2);\n\n tcg_gen_mov_tl(cpu_LO[0], t0);\n\n tcg_gen_movi_tl(cpu_HI[0], 0);\n\n tcg_gen_br(l1);\n\n gen_set_label(l2);\n\n tcg_gen_div_i64(cpu_LO[0], t0, t1);\n\n tcg_gen_rem_i64(cpu_HI[0], t0, t1);\n\n gen_set_label(l1);\n\n }\n\n opn = \"ddiv\";\n\n break;\n\n case OPC_DDIVU:\n\n {\n\n int l1 = gen_new_label();\n\n\n\n tcg_gen_brcondi_tl(TCG_COND_EQ, t1, 0, l1);\n\n tcg_gen_divu_i64(cpu_LO[0], t0, t1);\n\n tcg_gen_remu_i64(cpu_HI[0], t0, t1);\n\n gen_set_label(l1);\n\n }\n\n opn = \"ddivu\";\n\n break;\n\n case OPC_DMULT:\n\n gen_helper_dmult(cpu_env, t0, t1);\n\n opn = \"dmult\";\n\n break;\n\n case OPC_DMULTU:\n\n gen_helper_dmultu(cpu_env, t0, t1);\n\n opn = \"dmultu\";\n\n break;\n\n#endif\n\n case OPC_MADD:\n\n {\n\n TCGv_i64 t2 = tcg_temp_new_i64();\n\n TCGv_i64 t3 = tcg_temp_new_i64();\n\n acc = ((ctx->opcode) >> 11) & 0x03;\n\n if (acc != 0) {\n\n check_dsp(ctx);\n\n }\n\n\n\n tcg_gen_ext_tl_i64(t2, t0);\n\n tcg_gen_ext_tl_i64(t3, t1);\n\n tcg_gen_mul_i64(t2, t2, t3);\n\n tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]);\n\n tcg_gen_add_i64(t2, t2, t3);\n\n tcg_temp_free_i64(t3);\n\n tcg_gen_trunc_i64_tl(t0, t2);\n\n tcg_gen_shri_i64(t2, t2, 32);\n\n tcg_gen_trunc_i64_tl(t1, t2);\n\n tcg_temp_free_i64(t2);\n\n tcg_gen_ext32s_tl(cpu_LO[acc], t0);\n\n tcg_gen_ext32s_tl(cpu_HI[acc], t1);\n\n }\n\n opn = \"madd\";\n\n break;\n\n case OPC_MADDU:\n\n {\n\n TCGv_i64 t2 = tcg_temp_new_i64();\n\n TCGv_i64 t3 = tcg_temp_new_i64();\n\n acc = ((ctx->opcode) >> 11) & 0x03;\n\n if (acc != 0) {\n\n check_dsp(ctx);\n\n }\n\n\n\n tcg_gen_ext32u_tl(t0, t0);\n\n tcg_gen_ext32u_tl(t1, t1);\n\n tcg_gen_extu_tl_i64(t2, t0);\n\n tcg_gen_extu_tl_i64(t3, t1);\n\n tcg_gen_mul_i64(t2, t2, t3);\n\n tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]);\n\n tcg_gen_add_i64(t2, t2, t3);\n\n tcg_temp_free_i64(t3);\n\n tcg_gen_trunc_i64_tl(t0, t2);\n\n tcg_gen_shri_i64(t2, t2, 32);\n\n tcg_gen_trunc_i64_tl(t1, t2);\n\n tcg_temp_free_i64(t2);\n\n tcg_gen_ext32s_tl(cpu_LO[acc], t0);\n\n tcg_gen_ext32s_tl(cpu_HI[acc], t1);\n\n }\n\n opn = \"maddu\";\n\n break;\n\n case OPC_MSUB:\n\n {\n\n TCGv_i64 t2 = tcg_temp_new_i64();\n\n TCGv_i64 t3 = tcg_temp_new_i64();\n\n acc = ((ctx->opcode) >> 11) & 0x03;\n\n if (acc != 0) {\n\n check_dsp(ctx);\n\n }\n\n\n\n tcg_gen_ext_tl_i64(t2, t0);\n\n tcg_gen_ext_tl_i64(t3, t1);\n\n tcg_gen_mul_i64(t2, t2, t3);\n\n tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]);\n\n tcg_gen_sub_i64(t2, t3, t2);\n\n tcg_temp_free_i64(t3);\n\n tcg_gen_trunc_i64_tl(t0, t2);\n\n tcg_gen_shri_i64(t2, t2, 32);\n\n tcg_gen_trunc_i64_tl(t1, t2);\n\n tcg_temp_free_i64(t2);\n\n tcg_gen_ext32s_tl(cpu_LO[acc], t0);\n\n tcg_gen_ext32s_tl(cpu_HI[acc], t1);\n\n }\n\n opn = \"msub\";\n\n break;\n\n case OPC_MSUBU:\n\n {\n\n TCGv_i64 t2 = tcg_temp_new_i64();\n\n TCGv_i64 t3 = tcg_temp_new_i64();\n\n acc = ((ctx->opcode) >> 11) & 0x03;\n\n if (acc != 0) {\n\n check_dsp(ctx);\n\n }\n\n\n\n tcg_gen_ext32u_tl(t0, t0);\n\n tcg_gen_ext32u_tl(t1, t1);\n\n tcg_gen_extu_tl_i64(t2, t0);\n\n tcg_gen_extu_tl_i64(t3, t1);\n\n tcg_gen_mul_i64(t2, t2, t3);\n\n tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]);\n\n tcg_gen_sub_i64(t2, t3, t2);\n\n tcg_temp_free_i64(t3);\n\n tcg_gen_trunc_i64_tl(t0, t2);\n\n tcg_gen_shri_i64(t2, t2, 32);\n\n tcg_gen_trunc_i64_tl(t1, t2);\n\n tcg_temp_free_i64(t2);\n\n tcg_gen_ext32s_tl(cpu_LO[acc], t0);\n\n tcg_gen_ext32s_tl(cpu_HI[acc], t1);\n\n }\n\n opn = \"msubu\";\n\n break;\n\n default:\n\n MIPS_INVAL(opn);\n\n generate_exception(ctx, EXCP_RI);\n\n goto out;\n\n }\n\n (void)opn; /* avoid a compiler warning */\n\n MIPS_DEBUG(\"%s %s %s\", opn, regnames[rs], regnames[rt]);\n\n out:\n\n tcg_temp_free(t0);\n\n tcg_temp_free(t1);\n\n}\n", + "output": "1", + "index": 26865 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int smka_decode_frame(AVCodecContext *avctx, void *data,\n\n int *got_frame_ptr, AVPacket *avpkt)\n\n{\n\n SmackerAudioContext *s = avctx->priv_data;\n\n const uint8_t *buf = avpkt->data;\n\n int buf_size = avpkt->size;\n\n GetBitContext gb;\n\n HuffContext h[4] = { { 0 } };\n\n VLC vlc[4] = { { 0 } };\n\n int16_t *samples;\n\n uint8_t *samples8;\n\n int val;\n\n int i, res, ret;\n\n int unp_size;\n\n int bits, stereo;\n\n int pred[2] = {0, 0};\n\n\n\n if (buf_size <= 4) {\n\n av_log(avctx, AV_LOG_ERROR, \"packet is too small\\n\");\n\n return AVERROR(EINVAL);\n\n }\n\n\n\n unp_size = AV_RL32(buf);\n\n\n\n if (unp_size > (1U<<24)) {\n\n av_log(avctx, AV_LOG_ERROR, \"packet is too big\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n init_get_bits(&gb, buf + 4, (buf_size - 4) * 8);\n\n\n\n if(!get_bits1(&gb)){\n\n av_log(avctx, AV_LOG_INFO, \"Sound: no data\\n\");\n\n *got_frame_ptr = 0;\n\n return 1;\n\n }\n\n stereo = get_bits1(&gb);\n\n bits = get_bits1(&gb);\n\n if (stereo ^ (avctx->channels != 1)) {\n\n av_log(avctx, AV_LOG_ERROR, \"channels mismatch\\n\");\n\n return AVERROR(EINVAL);\n\n }\n\n if (bits && avctx->sample_fmt == AV_SAMPLE_FMT_U8) {\n\n av_log(avctx, AV_LOG_ERROR, \"sample format mismatch\\n\");\n\n return AVERROR(EINVAL);\n\n }\n\n\n\n /* get output buffer */\n\n s->frame.nb_samples = unp_size / (avctx->channels * (bits + 1));\n\n if ((ret = avctx->get_buffer(avctx, &s->frame)) < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"get_buffer() failed\\n\");\n\n return ret;\n\n }\n\n samples = (int16_t *)s->frame.data[0];\n\n samples8 = s->frame.data[0];\n\n\n\n // Initialize\n\n for(i = 0; i < (1 << (bits + stereo)); i++) {\n\n h[i].length = 256;\n\n h[i].maxlength = 0;\n\n h[i].current = 0;\n\n h[i].bits = av_mallocz(256 * 4);\n\n h[i].lengths = av_mallocz(256 * sizeof(int));\n\n h[i].values = av_mallocz(256 * sizeof(int));\n\n skip_bits1(&gb);\n\n smacker_decode_tree(&gb, &h[i], 0, 0);\n\n skip_bits1(&gb);\n\n if(h[i].current > 1) {\n\n res = init_vlc(&vlc[i], SMKTREE_BITS, h[i].length,\n\n h[i].lengths, sizeof(int), sizeof(int),\n\n h[i].bits, sizeof(uint32_t), sizeof(uint32_t), INIT_VLC_LE);\n\n if(res < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"Cannot build VLC table\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n }\n\n }\n\n if(bits) { //decode 16-bit data\n\n for(i = stereo; i >= 0; i--)\n\n pred[i] = sign_extend(av_bswap16(get_bits(&gb, 16)), 16);\n\n for(i = 0; i <= stereo; i++)\n\n *samples++ = pred[i];\n\n for(; i < unp_size / 2; i++) {\n\n if(get_bits_left(&gb)<0)\n\n return AVERROR_INVALIDDATA;\n\n if(i & stereo) {\n\n if(vlc[2].table)\n\n res = get_vlc2(&gb, vlc[2].table, SMKTREE_BITS, 3);\n\n else\n\n res = 0;\n\n if (res < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"invalid vlc\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n val = h[2].values[res];\n\n if(vlc[3].table)\n\n res = get_vlc2(&gb, vlc[3].table, SMKTREE_BITS, 3);\n\n else\n\n res = 0;\n\n if (res < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"invalid vlc\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n val |= h[3].values[res] << 8;\n\n pred[1] += sign_extend(val, 16);\n\n *samples++ = av_clip_int16(pred[1]);\n\n } else {\n\n if(vlc[0].table)\n\n res = get_vlc2(&gb, vlc[0].table, SMKTREE_BITS, 3);\n\n else\n\n res = 0;\n\n if (res < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"invalid vlc\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n val = h[0].values[res];\n\n if(vlc[1].table)\n\n res = get_vlc2(&gb, vlc[1].table, SMKTREE_BITS, 3);\n\n else\n\n res = 0;\n\n if (res < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"invalid vlc\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n val |= h[1].values[res] << 8;\n\n pred[0] += sign_extend(val, 16);\n\n *samples++ = av_clip_int16(pred[0]);\n\n }\n\n }\n\n } else { //8-bit data\n\n for(i = stereo; i >= 0; i--)\n\n pred[i] = get_bits(&gb, 8);\n\n for(i = 0; i <= stereo; i++)\n\n *samples8++ = pred[i];\n\n for(; i < unp_size; i++) {\n\n if(get_bits_left(&gb)<0)\n\n return AVERROR_INVALIDDATA;\n\n if(i & stereo){\n\n if(vlc[1].table)\n\n res = get_vlc2(&gb, vlc[1].table, SMKTREE_BITS, 3);\n\n else\n\n res = 0;\n\n if (res < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"invalid vlc\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n pred[1] += sign_extend(h[1].values[res], 8);\n\n *samples8++ = av_clip_uint8(pred[1]);\n\n } else {\n\n if(vlc[0].table)\n\n res = get_vlc2(&gb, vlc[0].table, SMKTREE_BITS, 3);\n\n else\n\n res = 0;\n\n if (res < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"invalid vlc\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n pred[0] += sign_extend(h[0].values[res], 8);\n\n *samples8++ = av_clip_uint8(pred[0]);\n\n }\n\n }\n\n }\n\n\n\n for(i = 0; i < 4; i++) {\n\n if(vlc[i].table)\n\n ff_free_vlc(&vlc[i]);\n\n av_free(h[i].bits);\n\n av_free(h[i].lengths);\n\n av_free(h[i].values);\n\n }\n\n\n\n *got_frame_ptr = 1;\n\n *(AVFrame *)data = s->frame;\n\n\n\n return buf_size;\n\n}\n", + "output": "0", + "index": 5024 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int libschroedinger_encode_init(AVCodecContext *avccontext)\n\n{\n\n FfmpegSchroEncoderParams* p_schro_params = avccontext->priv_data;\n\n SchroVideoFormatEnum preset;\n\n\n\n /* Initialize the libraries that libschroedinger depends on. */\n\n schro_init();\n\n\n\n /* Create an encoder object. */\n\n p_schro_params->encoder = schro_encoder_new();\n\n\n\n if (!p_schro_params->encoder) {\n\n av_log(avccontext, AV_LOG_ERROR,\n\n \"Unrecoverable Error: schro_encoder_new failed. \");\n\n return -1;\n\n }\n\n\n\n /* Initialize the format. */\n\n preset = ff_get_schro_video_format_preset(avccontext);\n\n p_schro_params->format =\n\n schro_encoder_get_video_format(p_schro_params->encoder);\n\n schro_video_format_set_std_video_format (p_schro_params->format, preset);\n\n p_schro_params->format->width = avccontext->width;\n\n p_schro_params->format->height = avccontext->height;\n\n\n\n if (SetSchroChromaFormat(avccontext) == -1)\n\n return -1;\n\n\n\n if (ff_get_schro_frame_format(p_schro_params->format->chroma_format,\n\n &p_schro_params->frame_format) == -1) {\n\n av_log (avccontext, AV_LOG_ERROR,\n\n \"This codec currently supports only planar YUV 4:2:0, 4:2:2\"\n\n \" and 4:4:4 formats.\\n\");\n\n return -1;\n\n }\n\n\n\n p_schro_params->format->frame_rate_numerator = avccontext->time_base.den;\n\n p_schro_params->format->frame_rate_denominator = avccontext->time_base.num;\n\n\n\n p_schro_params->frame_size = avpicture_get_size(avccontext->pix_fmt,\n\n avccontext->width,\n\n avccontext->height);\n\n\n\n avccontext->coded_frame = &p_schro_params->picture;\n\n\n\n if (avccontext->gop_size == 0){\n\n schro_encoder_setting_set_double (p_schro_params->encoder,\n\n \"gop_structure\",\n\n SCHRO_ENCODER_GOP_INTRA_ONLY);\n\n\n\n if (avccontext->coder_type == FF_CODER_TYPE_VLC) {\n\n schro_encoder_setting_set_double (p_schro_params->encoder,\n\n \"enable_noarith\", 1);\n\n }\n\n }\n\n else {\n\n schro_encoder_setting_set_double (p_schro_params->encoder,\n\n \"gop_structure\",\n\n SCHRO_ENCODER_GOP_BIREF);\n\n avccontext->has_b_frames = 1;\n\n }\n\n\n\n /* FIXME - Need to handle SCHRO_ENCODER_RATE_CONTROL_LOW_DELAY. */\n\n if (avccontext->flags & CODEC_FLAG_QSCALE) {\n\n if (avccontext->global_quality == 0) {\n\n /* lossless coding */\n\n schro_encoder_setting_set_double (p_schro_params->encoder,\n\n \"rate_control\",\n\n SCHRO_ENCODER_RATE_CONTROL_LOSSLESS);\n\n } else {\n\n int noise_threshold;\n\n schro_encoder_setting_set_double (p_schro_params->encoder,\n\n \"rate_control\",\n\n SCHRO_ENCODER_RATE_CONTROL_CONSTANT_NOISE_THRESHOLD);\n\n\n\n noise_threshold = avccontext->global_quality/FF_QP2LAMBDA;\n\n if (noise_threshold > 100)\n\n noise_threshold = 100;\n\n schro_encoder_setting_set_double (p_schro_params->encoder,\n\n \"noise_threshold\",\n\n noise_threshold);\n\n }\n\n }\n\n else {\n\n schro_encoder_setting_set_double ( p_schro_params->encoder,\n\n \"rate_control\",\n\n SCHRO_ENCODER_RATE_CONTROL_CONSTANT_BITRATE);\n\n\n\n schro_encoder_setting_set_double (p_schro_params->encoder,\n\n \"bitrate\",\n\n avccontext->bit_rate);\n\n\n\n }\n\n\n\n if (avccontext->flags & CODEC_FLAG_INTERLACED_ME) {\n\n /* All material can be coded as interlaced or progressive\n\n irrespective of the type of source material. */\n\n schro_encoder_setting_set_double (p_schro_params->encoder,\n\n \"interlaced_coding\", 1);\n\n }\n\n\n\n /* FIXME: Signal range hardcoded to 8-bit data until both libschroedinger\n\n * and libdirac support other bit-depth data. */\n\n schro_video_format_set_std_signal_range(p_schro_params->format,\n\n SCHRO_SIGNAL_RANGE_8BIT_VIDEO);\n\n\n\n\n\n /* Hardcode motion vector precision to quarter pixel. */\n\n schro_encoder_setting_set_double (p_schro_params->encoder,\n\n \"mv_precision\", 2);\n\n\n\n /* Set the encoder format. */\n\n schro_encoder_set_video_format(p_schro_params->encoder,\n\n p_schro_params->format);\n\n\n\n /* Set the debug level. */\n\n schro_debug_set_level (avccontext->debug);\n\n\n\n schro_encoder_start (p_schro_params->encoder);\n\n\n\n /* Initialize the encoded frame queue. */\n\n ff_dirac_schro_queue_init (&p_schro_params->enc_frame_queue);\n\n return 0 ;\n\n}\n", + "output": "1", + "index": 4665 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void print_report(OutputFile *output_files,\n\n OutputStream *ost_table, int nb_ostreams,\n\n int is_last_report, int64_t timer_start)\n\n{\n\n char buf[1024];\n\n OutputStream *ost;\n\n AVFormatContext *oc;\n\n int64_t total_size;\n\n AVCodecContext *enc;\n\n int frame_number, vid, i;\n\n double bitrate;\n\n int64_t pts = INT64_MAX;\n\n static int64_t last_time = -1;\n\n static int qp_histogram[52];\n\n int hours, mins, secs, us;\n\n\n\n if (!is_last_report) {\n\n int64_t cur_time;\n\n /* display the report every 0.5 seconds */\n\n cur_time = av_gettime();\n\n if (last_time == -1) {\n\n last_time = cur_time;\n\n return;\n\n }\n\n if ((cur_time - last_time) < 500000)\n\n return;\n\n last_time = cur_time;\n\n }\n\n\n\n\n\n oc = output_files[0].ctx;\n\n\n\n total_size = avio_size(oc->pb);\n\n if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too\n\n total_size= avio_tell(oc->pb);\n\n\n\n buf[0] = '\\0';\n\n vid = 0;\n\n for(i=0;ist->codec;\n\n if (!ost->st->stream_copy && enc->coded_frame)\n\n q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;\n\n if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {\n\n snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), \"q=%2.1f \", q);\n\n }\n\n if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {\n\n float t = (av_gettime()-timer_start) / 1000000.0;\n\n\n\n frame_number = ost->frame_number;\n\n snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), \"frame=%5d fps=%3d q=%3.1f \",\n\n frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);\n\n if(is_last_report)\n\n snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), \"L\");\n\n if(qp_hist){\n\n int j;\n\n int qp = lrintf(q);\n\n if(qp>=0 && qpflags&CODEC_FLAG_PSNR){\n\n int j;\n\n double error, error_sum=0;\n\n double scale, scale_sum=0;\n\n char type[3]= {'Y','U','V'};\n\n snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), \"PSNR=\");\n\n for(j=0; j<3; j++){\n\n if(is_last_report){\n\n error= enc->error[j];\n\n scale= enc->width*enc->height*255.0*255.0*frame_number;\n\n }else{\n\n error= enc->coded_frame->error[j];\n\n scale= enc->width*enc->height*255.0*255.0;\n\n }\n\n if(j) scale/=4;\n\n error_sum += error;\n\n scale_sum += scale;\n\n snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), \"%c:%2.2f \", type[j], psnr(error/scale));\n\n }\n\n snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), \"*:%2.2f \", psnr(error_sum/scale_sum));\n\n }\n\n vid = 1;\n\n }\n\n /* compute min output value */\n\n pts = FFMIN(pts, av_rescale_q(ost->st->pts.val,\n\n ost->st->time_base, AV_TIME_BASE_Q));\n\n }\n\n\n\n secs = pts / AV_TIME_BASE;\n\n us = pts % AV_TIME_BASE;\n\n mins = secs / 60;\n\n secs %= 60;\n\n hours = mins / 60;\n\n mins %= 60;\n\n\n\n bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0;\n\n\n\n snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),\n\n \"size=%8.0fkB time=\", total_size / 1024.0);\n\n snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),\n\n \"%02d:%02d:%02d.%02d \", hours, mins, secs,\n\n (100 * us) / AV_TIME_BASE);\n\n snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),\n\n \"bitrate=%6.1fkbits/s\", bitrate);\n\n\n\n if (nb_frames_dup || nb_frames_drop)\n\n snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), \" dup=%d drop=%d\",\n\n nb_frames_dup, nb_frames_drop);\n\n\n\n av_log(NULL, is_last_report ? AV_LOG_WARNING : AV_LOG_INFO, \"%s \\r\", buf);\n\n\n\n fflush(stderr);\n\n\n\n if (is_last_report) {\n\n int64_t raw= audio_size + video_size + extra_size;\n\n av_log(NULL, AV_LOG_INFO, \"\\n\");\n\n av_log(NULL, AV_LOG_INFO, \"video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\\n\",\n\n video_size/1024.0,\n\n audio_size/1024.0,\n\n extra_size/1024.0,\n\n 100.0*(total_size - raw)/raw\n\n );\n\n }\n\n}\n", + "output": "0", + "index": 18882 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int av_find_stream_info(AVFormatContext *ic)\n\n{\n\n int i, count, ret, read_size, j;\n\n AVStream *st;\n\n AVPacket pkt1, *pkt;\n\n AVPacketList *pktl=NULL, **ppktl;\n\n int64_t last_dts[MAX_STREAMS];\n\n int duration_count[MAX_STREAMS]={0};\n\n double duration_error[MAX_STREAMS][MAX_STD_TIMEBASES]={{0}}; //FIXME malloc()?\n\n offset_t old_offset = url_ftell(&ic->pb);\n\n\n\n for(i=0;inb_streams;i++) {\n\n st = ic->streams[i];\n\n if(st->codec->codec_type == CODEC_TYPE_VIDEO){\n\n/* if(!st->time_base.num)\n\n st->time_base= */\n\n if(!st->codec->time_base.num)\n\n st->codec->time_base= st->time_base;\n\n }\n\n //only for the split stuff\n\n if (!st->parser) {\n\n st->parser = av_parser_init(st->codec->codec_id);\n\n if(st->need_parsing == 2 && st->parser){\n\n st->parser->flags |= PARSER_FLAG_COMPLETE_FRAMES;\n\n }\n\n }\n\n }\n\n\n\n for(i=0;ipacket_buffer;\n\n for(;;) {\n\n /* check if one codec still needs to be handled */\n\n for(i=0;inb_streams;i++) {\n\n st = ic->streams[i];\n\n if (!has_codec_parameters(st->codec))\n\n break;\n\n /* variable fps and no guess at the real fps */\n\n if( st->codec->time_base.den >= 101LL*st->codec->time_base.num\n\n && duration_count[i]<20 && st->codec->codec_type == CODEC_TYPE_VIDEO)\n\n break;\n\n if(st->parser && st->parser->parser->split && !st->codec->extradata)\n\n break;\n\n }\n\n if (i == ic->nb_streams) {\n\n /* NOTE: if the format has no header, then we need to read\n\n some packets to get most of the streams, so we cannot\n\n stop here */\n\n if (!(ic->ctx_flags & AVFMTCTX_NOHEADER)) {\n\n /* if we found the info for all the codecs, we can stop */\n\n ret = count;\n\n break;\n\n }\n\n }\n\n /* we did not get all the codec info, but we read too much data */\n\n if (read_size >= MAX_READ_SIZE) {\n\n ret = count;\n\n break;\n\n }\n\n\n\n /* NOTE: a new stream can be added there if no header in file\n\n (AVFMTCTX_NOHEADER) */\n\n ret = av_read_frame_internal(ic, &pkt1);\n\n if (ret < 0) {\n\n /* EOF or error */\n\n ret = -1; /* we could not have all the codec parameters before EOF */\n\n for(i=0;inb_streams;i++) {\n\n st = ic->streams[i];\n\n if (!has_codec_parameters(st->codec)){\n\n char buf[256];\n\n avcodec_string(buf, sizeof(buf), st->codec, 0);\n\n av_log(ic, AV_LOG_INFO, \"Could not find codec parameters (%s)\\n\", buf);\n\n } else {\n\n ret = 0;\n\n }\n\n }\n\n break;\n\n }\n\n\n\n pktl = av_mallocz(sizeof(AVPacketList));\n\n if (!pktl) {\n\n ret = AVERROR_NOMEM;\n\n break;\n\n }\n\n\n\n /* add the packet in the buffered packet list */\n\n *ppktl = pktl;\n\n ppktl = &pktl->next;\n\n\n\n pkt = &pktl->pkt;\n\n *pkt = pkt1;\n\n\n\n /* duplicate the packet */\n\n if (av_dup_packet(pkt) < 0) {\n\n ret = AVERROR_NOMEM;\n\n break;\n\n }\n\n\n\n read_size += pkt->size;\n\n\n\n st = ic->streams[pkt->stream_index];\n\n if(st->codec_info_nb_frames>1) //FIXME move codec_info_nb_frames and codec_info_duration from AVStream into this func\n\n st->codec_info_duration += pkt->duration;\n\n if (pkt->duration != 0)\n\n st->codec_info_nb_frames++;\n\n\n\n {\n\n int index= pkt->stream_index;\n\n int64_t last= last_dts[index];\n\n int64_t duration= pkt->dts - last;\n\n\n\n if(pkt->dts != AV_NOPTS_VALUE && last != AV_NOPTS_VALUE && duration>0){\n\n double dur= duration * av_q2d(st->time_base);\n\n\n\n// if(st->codec->codec_type == CODEC_TYPE_VIDEO)\n\n// av_log(NULL, AV_LOG_ERROR, \"%f\\n\", dur);\n\n if(duration_count[index] < 2)\n\n memset(duration_error, 0, sizeof(duration_error));\n\n for(i=1; icodec_info_nb_frames == 0 && 0)\n\n st->codec_info_duration += duration;\n\n }\n\n if(last == AV_NOPTS_VALUE || duration_count[index]<=1)\n\n last_dts[pkt->stream_index]= pkt->dts;\n\n }\n\n if(st->parser && st->parser->parser->split && !st->codec->extradata){\n\n int i= st->parser->parser->split(st->codec, pkt->data, pkt->size);\n\n if(i){\n\n st->codec->extradata_size= i;\n\n st->codec->extradata= av_malloc(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);\n\n memcpy(st->codec->extradata, pkt->data, st->codec->extradata_size);\n\n memset(st->codec->extradata + i, 0, FF_INPUT_BUFFER_PADDING_SIZE);\n\n }\n\n }\n\n\n\n /* if still no information, we try to open the codec and to\n\n decompress the frame. We try to avoid that in most cases as\n\n it takes longer and uses more memory. For MPEG4, we need to\n\n decompress for Quicktime. */\n\n if (!has_codec_parameters(st->codec) /*&&\n\n (st->codec->codec_id == CODEC_ID_FLV1 ||\n\n st->codec->codec_id == CODEC_ID_H264 ||\n\n st->codec->codec_id == CODEC_ID_H263 ||\n\n st->codec->codec_id == CODEC_ID_H261 ||\n\n st->codec->codec_id == CODEC_ID_VORBIS ||\n\n st->codec->codec_id == CODEC_ID_MJPEG ||\n\n st->codec->codec_id == CODEC_ID_PNG ||\n\n st->codec->codec_id == CODEC_ID_PAM ||\n\n st->codec->codec_id == CODEC_ID_PGM ||\n\n st->codec->codec_id == CODEC_ID_PGMYUV ||\n\n st->codec->codec_id == CODEC_ID_PBM ||\n\n st->codec->codec_id == CODEC_ID_PPM ||\n\n st->codec->codec_id == CODEC_ID_SHORTEN ||\n\n (st->codec->codec_id == CODEC_ID_MPEG4 && !st->need_parsing))*/)\n\n try_decode_frame(st, pkt->data, pkt->size);\n\n\n\n if (av_rescale_q(st->codec_info_duration, st->time_base, AV_TIME_BASE_Q) >= ic->max_analyze_duration) {\n\n break;\n\n }\n\n count++;\n\n }\n\n\n\n // close codecs which where opened in try_decode_frame()\n\n for(i=0;inb_streams;i++) {\n\n st = ic->streams[i];\n\n if(st->codec->codec)\n\n avcodec_close(st->codec);\n\n }\n\n for(i=0;inb_streams;i++) {\n\n st = ic->streams[i];\n\n if (st->codec->codec_type == CODEC_TYPE_VIDEO) {\n\n if(st->codec->codec_id == CODEC_ID_RAWVIDEO && !st->codec->codec_tag && !st->codec->bits_per_sample)\n\n st->codec->codec_tag= avcodec_pix_fmt_to_codec_tag(st->codec->pix_fmt);\n\n\n\n if(duration_count[i]\n\n && (st->codec->time_base.num*101LL <= st->codec->time_base.den || st->codec->codec_id == CODEC_ID_MPEG2VIDEO) /*&&\n\n //FIXME we should not special case mpeg2, but this needs testing with non mpeg2 ...\n\n st->time_base.num*duration_sum[i]/duration_count[i]*101LL > st->time_base.den*/){\n\n double best_error= 2*av_q2d(st->time_base);\n\n best_error= best_error*best_error*duration_count[i]*1000*12*30;\n\n\n\n for(j=1; jcodec->codec_type == CODEC_TYPE_VIDEO)\n\n// av_log(NULL, AV_LOG_ERROR, \"%f %f\\n\", get_std_framerate(j) / 12.0/1001, error);\n\n if(error < best_error){\n\n best_error= error;\n\n av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den, get_std_framerate(j), 12*1001, INT_MAX);\n\n }\n\n }\n\n }\n\n\n\n if (!st->r_frame_rate.num){\n\n if( st->codec->time_base.den * (int64_t)st->time_base.num\n\n <= st->codec->time_base.num * (int64_t)st->time_base.den){\n\n st->r_frame_rate.num = st->codec->time_base.den;\n\n st->r_frame_rate.den = st->codec->time_base.num;\n\n }else{\n\n st->r_frame_rate.num = st->time_base.den;\n\n st->r_frame_rate.den = st->time_base.num;\n\n }\n\n }\n\n }else if(st->codec->codec_type == CODEC_TYPE_AUDIO) {\n\n if(!st->codec->bits_per_sample)\n\n st->codec->bits_per_sample= av_get_bits_per_sample(st->codec->codec_id);\n\n }\n\n }\n\n\n\n av_estimate_timings(ic, old_offset);\n\n#if 0\n\n /* correct DTS for b frame streams with no timestamps */\n\n for(i=0;inb_streams;i++) {\n\n st = ic->streams[i];\n\n if (st->codec->codec_type == CODEC_TYPE_VIDEO) {\n\n if(b-frames){\n\n ppktl = &ic->packet_buffer;\n\n while(ppkt1){\n\n if(ppkt1->stream_index != i)\n\n continue;\n\n if(ppkt1->pkt->dts < 0)\n\n break;\n\n if(ppkt1->pkt->pts != AV_NOPTS_VALUE)\n\n break;\n\n ppkt1->pkt->dts -= delta;\n\n ppkt1= ppkt1->next;\n\n }\n\n if(ppkt1)\n\n continue;\n\n st->cur_dts -= delta;\n\n }\n\n }\n\n }\n\n#endif\n\n return ret;\n\n}\n", + "output": "1", + "index": 2335 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static DriveInfo *blockdev_init(QDict *bs_opts,\n\n BlockInterfaceType type,\n\n DriveMediaType media)\n\n{\n\n const char *buf;\n\n const char *file = NULL;\n\n const char *serial;\n\n int ro = 0;\n\n int bdrv_flags = 0;\n\n int on_read_error, on_write_error;\n\n DriveInfo *dinfo;\n\n ThrottleConfig cfg;\n\n int snapshot = 0;\n\n bool copy_on_read;\n\n int ret;\n\n Error *error = NULL;\n\n QemuOpts *opts;\n\n const char *id;\n\n bool has_driver_specific_opts;\n\n BlockDriver *drv = NULL;\n\n\n\n /* Check common options by copying from bs_opts to opts, all other options\n\n * stay in bs_opts for processing by bdrv_open(). */\n\n id = qdict_get_try_str(bs_opts, \"id\");\n\n opts = qemu_opts_create(&qemu_common_drive_opts, id, 1, &error);\n\n if (error_is_set(&error)) {\n\n qerror_report_err(error);\n\n error_free(error);\n\n return NULL;\n\n }\n\n\n\n qemu_opts_absorb_qdict(opts, bs_opts, &error);\n\n if (error_is_set(&error)) {\n\n qerror_report_err(error);\n\n error_free(error);\n\n return NULL;\n\n }\n\n\n\n if (id) {\n\n qdict_del(bs_opts, \"id\");\n\n }\n\n\n\n has_driver_specific_opts = !!qdict_size(bs_opts);\n\n\n\n /* extract parameters */\n\n snapshot = qemu_opt_get_bool(opts, \"snapshot\", 0);\n\n ro = qemu_opt_get_bool(opts, \"read-only\", 0);\n\n copy_on_read = qemu_opt_get_bool(opts, \"copy-on-read\", false);\n\n\n\n file = qemu_opt_get(opts, \"file\");\n\n serial = qemu_opt_get(opts, \"serial\");\n\n\n\n if ((buf = qemu_opt_get(opts, \"discard\")) != NULL) {\n\n if (bdrv_parse_discard_flags(buf, &bdrv_flags) != 0) {\n\n error_report(\"invalid discard option\");\n\n return NULL;\n\n }\n\n }\n\n\n\n if (qemu_opt_get_bool(opts, \"cache.writeback\", true)) {\n\n bdrv_flags |= BDRV_O_CACHE_WB;\n\n }\n\n if (qemu_opt_get_bool(opts, \"cache.direct\", false)) {\n\n bdrv_flags |= BDRV_O_NOCACHE;\n\n }\n\n if (qemu_opt_get_bool(opts, \"cache.no-flush\", false)) {\n\n bdrv_flags |= BDRV_O_NO_FLUSH;\n\n }\n\n\n\n#ifdef CONFIG_LINUX_AIO\n\n if ((buf = qemu_opt_get(opts, \"aio\")) != NULL) {\n\n if (!strcmp(buf, \"native\")) {\n\n bdrv_flags |= BDRV_O_NATIVE_AIO;\n\n } else if (!strcmp(buf, \"threads\")) {\n\n /* this is the default */\n\n } else {\n\n error_report(\"invalid aio option\");\n\n return NULL;\n\n }\n\n }\n\n#endif\n\n\n\n if ((buf = qemu_opt_get(opts, \"format\")) != NULL) {\n\n if (is_help_option(buf)) {\n\n error_printf(\"Supported formats:\");\n\n bdrv_iterate_format(bdrv_format_print, NULL);\n\n error_printf(\"\\n\");\n\n return NULL;\n\n }\n\n\n\n drv = bdrv_find_format(buf);\n\n if (!drv) {\n\n error_report(\"'%s' invalid format\", buf);\n\n return NULL;\n\n }\n\n }\n\n\n\n /* disk I/O throttling */\n\n memset(&cfg, 0, sizeof(cfg));\n\n cfg.buckets[THROTTLE_BPS_TOTAL].avg =\n\n qemu_opt_get_number(opts, \"throttling.bps-total\", 0);\n\n cfg.buckets[THROTTLE_BPS_READ].avg =\n\n qemu_opt_get_number(opts, \"throttling.bps-read\", 0);\n\n cfg.buckets[THROTTLE_BPS_WRITE].avg =\n\n qemu_opt_get_number(opts, \"throttling.bps-write\", 0);\n\n cfg.buckets[THROTTLE_OPS_TOTAL].avg =\n\n qemu_opt_get_number(opts, \"throttling.iops-total\", 0);\n\n cfg.buckets[THROTTLE_OPS_READ].avg =\n\n qemu_opt_get_number(opts, \"throttling.iops-read\", 0);\n\n cfg.buckets[THROTTLE_OPS_WRITE].avg =\n\n qemu_opt_get_number(opts, \"throttling.iops-write\", 0);\n\n\n\n cfg.buckets[THROTTLE_BPS_TOTAL].max =\n\n qemu_opt_get_number(opts, \"throttling.bps-total-max\", 0);\n\n cfg.buckets[THROTTLE_BPS_READ].max =\n\n qemu_opt_get_number(opts, \"throttling.bps-read-max\", 0);\n\n cfg.buckets[THROTTLE_BPS_WRITE].max =\n\n qemu_opt_get_number(opts, \"throttling.bps-write-max\", 0);\n\n cfg.buckets[THROTTLE_OPS_TOTAL].max =\n\n qemu_opt_get_number(opts, \"throttling.iops-total-max\", 0);\n\n cfg.buckets[THROTTLE_OPS_READ].max =\n\n qemu_opt_get_number(opts, \"throttling.iops-read-max\", 0);\n\n cfg.buckets[THROTTLE_OPS_WRITE].max =\n\n qemu_opt_get_number(opts, \"throttling.iops-write-max\", 0);\n\n\n\n cfg.op_size = qemu_opt_get_number(opts, \"throttling.iops-size\", 0);\n\n\n\n if (!check_throttle_config(&cfg, &error)) {\n\n error_report(\"%s\", error_get_pretty(error));\n\n error_free(error);\n\n return NULL;\n\n }\n\n\n\n on_write_error = BLOCKDEV_ON_ERROR_ENOSPC;\n\n if ((buf = qemu_opt_get(opts, \"werror\")) != NULL) {\n\n if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO && type != IF_NONE) {\n\n error_report(\"werror is not supported by this bus type\");\n\n return NULL;\n\n }\n\n\n\n on_write_error = parse_block_error_action(buf, 0);\n\n if (on_write_error < 0) {\n\n return NULL;\n\n }\n\n }\n\n\n\n on_read_error = BLOCKDEV_ON_ERROR_REPORT;\n\n if ((buf = qemu_opt_get(opts, \"rerror\")) != NULL) {\n\n if (type != IF_IDE && type != IF_VIRTIO && type != IF_SCSI && type != IF_NONE) {\n\n error_report(\"rerror is not supported by this bus type\");\n\n return NULL;\n\n }\n\n\n\n on_read_error = parse_block_error_action(buf, 1);\n\n if (on_read_error < 0) {\n\n return NULL;\n\n }\n\n }\n\n\n\n /* init */\n\n dinfo = g_malloc0(sizeof(*dinfo));\n\n dinfo->id = g_strdup(qemu_opts_id(opts));\n\n dinfo->bdrv = bdrv_new(dinfo->id);\n\n dinfo->bdrv->open_flags = snapshot ? BDRV_O_SNAPSHOT : 0;\n\n dinfo->bdrv->read_only = ro;\n\n dinfo->type = type;\n\n dinfo->refcount = 1;\n\n if (serial != NULL) {\n\n dinfo->serial = g_strdup(serial);\n\n }\n\n QTAILQ_INSERT_TAIL(&drives, dinfo, next);\n\n\n\n bdrv_set_on_error(dinfo->bdrv, on_read_error, on_write_error);\n\n\n\n /* disk I/O throttling */\n\n if (throttle_enabled(&cfg)) {\n\n bdrv_io_limits_enable(dinfo->bdrv);\n\n bdrv_set_io_limits(dinfo->bdrv, &cfg);\n\n }\n\n\n\n switch(type) {\n\n case IF_IDE:\n\n case IF_SCSI:\n\n case IF_XEN:\n\n case IF_NONE:\n\n dinfo->media_cd = media == MEDIA_CDROM;\n\n break;\n\n case IF_SD:\n\n case IF_FLOPPY:\n\n case IF_PFLASH:\n\n case IF_MTD:\n\n case IF_VIRTIO:\n\n break;\n\n default:\n\n abort();\n\n }\n\n if (!file || !*file) {\n\n if (has_driver_specific_opts) {\n\n file = NULL;\n\n } else {\n\n return dinfo;\n\n }\n\n }\n\n if (snapshot) {\n\n /* always use cache=unsafe with snapshot */\n\n bdrv_flags &= ~BDRV_O_CACHE_MASK;\n\n bdrv_flags |= (BDRV_O_SNAPSHOT|BDRV_O_CACHE_WB|BDRV_O_NO_FLUSH);\n\n }\n\n\n\n if (copy_on_read) {\n\n bdrv_flags |= BDRV_O_COPY_ON_READ;\n\n }\n\n\n\n if (runstate_check(RUN_STATE_INMIGRATE)) {\n\n bdrv_flags |= BDRV_O_INCOMING;\n\n }\n\n\n\n if (media == MEDIA_CDROM) {\n\n /* CDROM is fine for any interface, don't check. */\n\n ro = 1;\n\n } else if (ro == 1) {\n\n if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY &&\n\n type != IF_NONE && type != IF_PFLASH) {\n\n error_report(\"read-only not supported by this bus type\");\n\n goto err;\n\n }\n\n }\n\n\n\n bdrv_flags |= ro ? 0 : BDRV_O_RDWR;\n\n\n\n if (ro && copy_on_read) {\n\n error_report(\"warning: disabling copy_on_read on read-only drive\");\n\n }\n\n\n\n QINCREF(bs_opts);\n\n ret = bdrv_open(dinfo->bdrv, file, bs_opts, bdrv_flags, drv, &error);\n\n\n\n if (ret < 0) {\n\n error_report(\"could not open disk image %s: %s\",\n\n file ?: dinfo->id, error_get_pretty(error));\n\n goto err;\n\n }\n\n\n\n if (bdrv_key_required(dinfo->bdrv))\n\n autostart = 0;\n\n\n\n QDECREF(bs_opts);\n\n qemu_opts_del(opts);\n\n\n\n return dinfo;\n\n\n\nerr:\n\n qemu_opts_del(opts);\n\n QDECREF(bs_opts);\n\n bdrv_unref(dinfo->bdrv);\n\n g_free(dinfo->id);\n\n QTAILQ_REMOVE(&drives, dinfo, next);\n\n g_free(dinfo);\n\n return NULL;\n\n}\n", + "output": "0", + "index": 26487 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int bdrv_qed_open(BlockDriverState *bs, QDict *options, int flags,\n\n Error **errp)\n\n{\n\n BDRVQEDState *s = bs->opaque;\n\n QEDHeader le_header;\n\n int64_t file_size;\n\n int ret;\n\n\n\n s->bs = bs;\n\n QSIMPLEQ_INIT(&s->allocating_write_reqs);\n\n\n\n ret = bdrv_pread(bs->file, 0, &le_header, sizeof(le_header));\n\n if (ret < 0) {\n\n return ret;\n\n }\n\n qed_header_le_to_cpu(&le_header, &s->header);\n\n\n\n if (s->header.magic != QED_MAGIC) {\n\n error_setg(errp, \"Image not in QED format\");\n\n return -EINVAL;\n\n }\n\n if (s->header.features & ~QED_FEATURE_MASK) {\n\n /* image uses unsupported feature bits */\n\n char buf[64];\n\n snprintf(buf, sizeof(buf), \"%\" PRIx64,\n\n s->header.features & ~QED_FEATURE_MASK);\n\n error_set(errp, QERR_UNKNOWN_BLOCK_FORMAT_FEATURE,\n\n bdrv_get_device_name(bs), \"QED\", buf);\n\n return -ENOTSUP;\n\n }\n\n if (!qed_is_cluster_size_valid(s->header.cluster_size)) {\n\n return -EINVAL;\n\n }\n\n\n\n /* Round down file size to the last cluster */\n\n file_size = bdrv_getlength(bs->file);\n\n if (file_size < 0) {\n\n return file_size;\n\n }\n\n s->file_size = qed_start_of_cluster(s, file_size);\n\n\n\n if (!qed_is_table_size_valid(s->header.table_size)) {\n\n return -EINVAL;\n\n }\n\n if (!qed_is_image_size_valid(s->header.image_size,\n\n s->header.cluster_size,\n\n s->header.table_size)) {\n\n return -EINVAL;\n\n }\n\n if (!qed_check_table_offset(s, s->header.l1_table_offset)) {\n\n return -EINVAL;\n\n }\n\n\n\n s->table_nelems = (s->header.cluster_size * s->header.table_size) /\n\n sizeof(uint64_t);\n\n s->l2_shift = ffs(s->header.cluster_size) - 1;\n\n s->l2_mask = s->table_nelems - 1;\n\n s->l1_shift = s->l2_shift + ffs(s->table_nelems) - 1;\n\n\n\n /* Header size calculation must not overflow uint32_t */\n\n if (s->header.header_size > UINT32_MAX / s->header.cluster_size) {\n\n return -EINVAL;\n\n }\n\n\n\n if ((s->header.features & QED_F_BACKING_FILE)) {\n\n if ((uint64_t)s->header.backing_filename_offset +\n\n s->header.backing_filename_size >\n\n s->header.cluster_size * s->header.header_size) {\n\n return -EINVAL;\n\n }\n\n\n\n ret = qed_read_string(bs->file, s->header.backing_filename_offset,\n\n s->header.backing_filename_size, bs->backing_file,\n\n sizeof(bs->backing_file));\n\n if (ret < 0) {\n\n return ret;\n\n }\n\n\n\n if (s->header.features & QED_F_BACKING_FORMAT_NO_PROBE) {\n\n pstrcpy(bs->backing_format, sizeof(bs->backing_format), \"raw\");\n\n }\n\n }\n\n\n\n /* Reset unknown autoclear feature bits. This is a backwards\n\n * compatibility mechanism that allows images to be opened by older\n\n * programs, which \"knock out\" unknown feature bits. When an image is\n\n * opened by a newer program again it can detect that the autoclear\n\n * feature is no longer valid.\n\n */\n\n if ((s->header.autoclear_features & ~QED_AUTOCLEAR_FEATURE_MASK) != 0 &&\n\n !bdrv_is_read_only(bs->file) && !(flags & BDRV_O_INCOMING)) {\n\n s->header.autoclear_features &= QED_AUTOCLEAR_FEATURE_MASK;\n\n\n\n ret = qed_write_header_sync(s);\n\n if (ret) {\n\n return ret;\n\n }\n\n\n\n /* From here on only known autoclear feature bits are valid */\n\n bdrv_flush(bs->file);\n\n }\n\n\n\n s->l1_table = qed_alloc_table(s);\n\n qed_init_l2_cache(&s->l2_cache);\n\n\n\n ret = qed_read_l1_table_sync(s);\n\n if (ret) {\n\n goto out;\n\n }\n\n\n\n /* If image was not closed cleanly, check consistency */\n\n if (!(flags & BDRV_O_CHECK) && (s->header.features & QED_F_NEED_CHECK)) {\n\n /* Read-only images cannot be fixed. There is no risk of corruption\n\n * since write operations are not possible. Therefore, allow\n\n * potentially inconsistent images to be opened read-only. This can\n\n * aid data recovery from an otherwise inconsistent image.\n\n */\n\n if (!bdrv_is_read_only(bs->file) &&\n\n !(flags & BDRV_O_INCOMING)) {\n\n BdrvCheckResult result = {0};\n\n\n\n ret = qed_check(s, &result, true);\n\n if (ret) {\n\n goto out;\n\n }\n\n }\n\n }\n\n\n\n bdrv_qed_attach_aio_context(bs, bdrv_get_aio_context(bs));\n\n\n\nout:\n\n if (ret) {\n\n qed_free_l2_cache(&s->l2_cache);\n\n qemu_vfree(s->l1_table);\n\n }\n\n return ret;\n\n}\n", + "output": "0", + "index": 17953 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static av_cold int vpx_init(AVCodecContext *avctx,\n\n const struct vpx_codec_iface *iface)\n\n{\n\n VP8Context *ctx = avctx->priv_data;\n\n struct vpx_codec_enc_cfg enccfg = { 0 };\n\n int res;\n\n\n\n av_log(avctx, AV_LOG_INFO, \"%s\\n\", vpx_codec_version_str());\n\n av_log(avctx, AV_LOG_VERBOSE, \"%s\\n\", vpx_codec_build_config());\n\n\n\n if ((res = vpx_codec_enc_config_default(iface, &enccfg, 0)) != VPX_CODEC_OK) {\n\n av_log(avctx, AV_LOG_ERROR, \"Failed to get config: %s\\n\",\n\n vpx_codec_err_to_string(res));\n\n return AVERROR(EINVAL);\n\n }\n\n dump_enc_cfg(avctx, &enccfg);\n\n\n\n enccfg.g_w = avctx->width;\n\n enccfg.g_h = avctx->height;\n\n enccfg.g_timebase.num = avctx->time_base.num;\n\n enccfg.g_timebase.den = avctx->time_base.den;\n\n enccfg.g_threads = avctx->thread_count;\n\n\n\n if (ctx->lag_in_frames >= 0)\n\n enccfg.g_lag_in_frames = ctx->lag_in_frames;\n\n\n\n if (avctx->flags & CODEC_FLAG_PASS1)\n\n enccfg.g_pass = VPX_RC_FIRST_PASS;\n\n else if (avctx->flags & CODEC_FLAG_PASS2)\n\n enccfg.g_pass = VPX_RC_LAST_PASS;\n\n else\n\n enccfg.g_pass = VPX_RC_ONE_PASS;\n\n\n\n if (!avctx->bit_rate)\n\n avctx->bit_rate = enccfg.rc_target_bitrate * 1000;\n\n else\n\n enccfg.rc_target_bitrate = av_rescale_rnd(avctx->bit_rate, 1, 1000,\n\n AV_ROUND_NEAR_INF);\n\n\n\n if (ctx->crf)\n\n enccfg.rc_end_usage = VPX_CQ;\n\n else if (avctx->rc_min_rate == avctx->rc_max_rate &&\n\n avctx->rc_min_rate == avctx->bit_rate)\n\n enccfg.rc_end_usage = VPX_CBR;\n\n\n\n if (avctx->qmin > 0)\n\n enccfg.rc_min_quantizer = avctx->qmin;\n\n if (avctx->qmax > 0)\n\n enccfg.rc_max_quantizer = avctx->qmax;\n\n enccfg.rc_dropframe_thresh = avctx->frame_skip_threshold;\n\n\n\n //0-100 (0 => CBR, 100 => VBR)\n\n enccfg.rc_2pass_vbr_bias_pct = round(avctx->qcompress * 100);\n\n enccfg.rc_2pass_vbr_minsection_pct =\n\n avctx->rc_min_rate * 100LL / avctx->bit_rate;\n\n if (avctx->rc_max_rate)\n\n enccfg.rc_2pass_vbr_maxsection_pct =\n\n avctx->rc_max_rate * 100LL / avctx->bit_rate;\n\n\n\n if (avctx->rc_buffer_size)\n\n enccfg.rc_buf_sz =\n\n avctx->rc_buffer_size * 1000LL / avctx->bit_rate;\n\n if (avctx->rc_initial_buffer_occupancy)\n\n enccfg.rc_buf_initial_sz =\n\n avctx->rc_initial_buffer_occupancy * 1000LL / avctx->bit_rate;\n\n enccfg.rc_buf_optimal_sz = enccfg.rc_buf_sz * 5 / 6;\n\n\n\n //_enc_init() will balk if kf_min_dist differs from max w/VPX_KF_AUTO\n\n if (avctx->keyint_min >= 0 && avctx->keyint_min == avctx->gop_size)\n\n enccfg.kf_min_dist = avctx->keyint_min;\n\n if (avctx->gop_size >= 0)\n\n enccfg.kf_max_dist = avctx->gop_size;\n\n\n\n if (enccfg.g_pass == VPX_RC_FIRST_PASS)\n\n enccfg.g_lag_in_frames = 0;\n\n else if (enccfg.g_pass == VPX_RC_LAST_PASS) {\n\n int decode_size, ret;\n\n\n\n if (!avctx->stats_in) {\n\n av_log(avctx, AV_LOG_ERROR, \"No stats file for second pass\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n ctx->twopass_stats.sz = strlen(avctx->stats_in) * 3 / 4;\n\n ret = av_reallocp(&ctx->twopass_stats.buf, ctx->twopass_stats.sz);\n\n if (ret < 0) {\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"Stat buffer alloc (%zu bytes) failed\\n\",\n\n ctx->twopass_stats.sz);\n\n return ret;\n\n }\n\n decode_size = av_base64_decode(ctx->twopass_stats.buf, avctx->stats_in,\n\n ctx->twopass_stats.sz);\n\n if (decode_size < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"Stat buffer decode failed\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n ctx->twopass_stats.sz = decode_size;\n\n enccfg.rc_twopass_stats_in = ctx->twopass_stats;\n\n }\n\n\n\n /* 0-3: For non-zero values the encoder increasingly optimizes for reduced\n\n complexity playback on low powered devices at the expense of encode\n\n quality. */\n\n if (avctx->profile != FF_PROFILE_UNKNOWN)\n\n enccfg.g_profile = avctx->profile;\n\n else if (avctx->pix_fmt == AV_PIX_FMT_YUV420P)\n\n avctx->profile = enccfg.g_profile = FF_PROFILE_VP9_0;\n\n else\n\n avctx->profile = enccfg.g_profile = FF_PROFILE_VP9_1;\n\n\n\n enccfg.g_error_resilient = ctx->error_resilient;\n\n\n\n dump_enc_cfg(avctx, &enccfg);\n\n /* Construct Encoder Context */\n\n res = vpx_codec_enc_init(&ctx->encoder, iface, &enccfg, 0);\n\n if (res != VPX_CODEC_OK) {\n\n log_encoder_error(avctx, \"Failed to initialize encoder\");\n\n return AVERROR(EINVAL);\n\n }\n\n\n\n //codec control failures are currently treated only as warnings\n\n av_log(avctx, AV_LOG_DEBUG, \"vpx_codec_control\\n\");\n\n if (ctx->cpu_used != INT_MIN)\n\n codecctl_int(avctx, VP8E_SET_CPUUSED, ctx->cpu_used);\n\n if (ctx->auto_alt_ref >= 0)\n\n codecctl_int(avctx, VP8E_SET_ENABLEAUTOALTREF, ctx->auto_alt_ref);\n\n if (ctx->arnr_max_frames >= 0)\n\n codecctl_int(avctx, VP8E_SET_ARNR_MAXFRAMES, ctx->arnr_max_frames);\n\n if (ctx->arnr_strength >= 0)\n\n codecctl_int(avctx, VP8E_SET_ARNR_STRENGTH, ctx->arnr_strength);\n\n if (ctx->arnr_type >= 0)\n\n codecctl_int(avctx, VP8E_SET_ARNR_TYPE, ctx->arnr_type);\n\n\n\n if (CONFIG_LIBVPX_VP8_ENCODER && iface == &vpx_codec_vp8_cx_algo) {\n\n codecctl_int(avctx, VP8E_SET_NOISE_SENSITIVITY, avctx->noise_reduction);\n\n codecctl_int(avctx, VP8E_SET_TOKEN_PARTITIONS, av_log2(avctx->slices));\n\n }\n\n#if FF_API_MPV_OPT\n\n FF_DISABLE_DEPRECATION_WARNINGS\n\n if (avctx->mb_threshold) {\n\n av_log(avctx, AV_LOG_WARNING, \"The mb_threshold option is deprecated, \"\n\n \"use the static-thresh private option instead.\\n\");\n\n ctx->static_thresh = avctx->mb_threshold;\n\n }\n\n FF_ENABLE_DEPRECATION_WARNINGS\n\n#endif\n\n codecctl_int(avctx, VP8E_SET_STATIC_THRESHOLD, ctx->static_thresh);\n\n codecctl_int(avctx, VP8E_SET_CQ_LEVEL, ctx->crf);\n\n\n\n //provide dummy value to initialize wrapper, values will be updated each _encode()\n\n vpx_img_wrap(&ctx->rawimg, ff_vpx_pixfmt_to_imgfmt(avctx->pix_fmt),\n\n avctx->width, avctx->height, 1, (unsigned char *)1);\n\n\n\n avctx->coded_frame = av_frame_alloc();\n\n if (!avctx->coded_frame) {\n\n av_log(avctx, AV_LOG_ERROR, \"Error allocating coded frame\\n\");\n\n vp8_free(avctx);\n\n return AVERROR(ENOMEM);\n\n }\n\n return 0;\n\n}\n", + "output": "0", + "index": 12601 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int nbd_negotiate_options(NBDClient *client, uint16_t myflags,\n Error **errp)\n{\n uint32_t flags;\n bool fixedNewstyle = false;\n bool no_zeroes = false;\n /* Client sends:\n [ 0 .. 3] client flags\n Then we loop until NBD_OPT_EXPORT_NAME or NBD_OPT_GO:\n [ 0 .. 7] NBD_OPTS_MAGIC\n [ 8 .. 11] NBD option\n [12 .. 15] Data length\n ... Rest of request\n [ 0 .. 7] NBD_OPTS_MAGIC\n [ 8 .. 11] Second NBD option\n [12 .. 15] Data length\n ... Rest of request\n */\n if (nbd_read(client->ioc, &flags, sizeof(flags), errp) < 0) {\n error_prepend(errp, \"read failed: \");\n return -EIO;\n be32_to_cpus(&flags);\n trace_nbd_negotiate_options_flags(flags);\n if (flags & NBD_FLAG_C_FIXED_NEWSTYLE) {\n fixedNewstyle = true;\n flags &= ~NBD_FLAG_C_FIXED_NEWSTYLE;\n if (flags & NBD_FLAG_C_NO_ZEROES) {\n no_zeroes = true;\n flags &= ~NBD_FLAG_C_NO_ZEROES;\n if (flags != 0) {\n error_setg(errp, \"Unknown client flags 0x%\" PRIx32 \" received\", flags);\n while (1) {\n int ret;\n uint32_t option, length;\n uint64_t magic;\n if (nbd_read(client->ioc, &magic, sizeof(magic), errp) < 0) {\n error_prepend(errp, \"read failed: \");\n magic = be64_to_cpu(magic);\n trace_nbd_negotiate_options_check_magic(magic);\n if (magic != NBD_OPTS_MAGIC) {\n error_setg(errp, \"Bad magic received\");\n if (nbd_read(client->ioc, &option,\n sizeof(option), errp) < 0) {\n error_prepend(errp, \"read failed: \");\n option = be32_to_cpu(option);\n if (nbd_read(client->ioc, &length, sizeof(length), errp) < 0) {\n error_prepend(errp, \"read failed: \");\n length = be32_to_cpu(length);\n trace_nbd_negotiate_options_check_option(option,\n nbd_opt_lookup(option));\n if (client->tlscreds &&\n client->ioc == (QIOChannel *)client->sioc) {\n QIOChannel *tioc;\n if (!fixedNewstyle) {\n error_setg(errp, \"Unsupported option 0x%\" PRIx32, option);\n switch (option) {\n case NBD_OPT_STARTTLS:\n if (length) {\n /* Unconditionally drop the connection if the client\n * can't start a TLS negotiation correctly */\n return nbd_reject_length(client, length, option, true,\n errp);\n tioc = nbd_negotiate_handle_starttls(client, errp);\n if (!tioc) {\n return -EIO;\n ret = 0;\n object_unref(OBJECT(client->ioc));\n client->ioc = QIO_CHANNEL(tioc);\n break;\n case NBD_OPT_EXPORT_NAME:\n /* No way to return an error to client, so drop connection */\n error_setg(errp, \"Option 0x%x not permitted before TLS\",\n option);\n default:\n if (nbd_drop(client->ioc, length, errp) < 0) {\n return -EIO;\n ret = nbd_negotiate_send_rep_err(client->ioc,\n NBD_REP_ERR_TLS_REQD,\n option, errp,\n \"Option 0x%\" PRIx32\n \"not permitted before TLS\",\n option);\n /* Let the client keep trying, unless they asked to\n * quit. In this mode, we've already sent an error, so\n * we can't ack the abort. */\n if (option == NBD_OPT_ABORT) {\n return 1;\n break;\n } else if (fixedNewstyle) {\n switch (option) {\n case NBD_OPT_LIST:\n if (length) {\n ret = nbd_reject_length(client, length, option, false,\n errp);\n } else {\n ret = nbd_negotiate_handle_list(client, errp);\n break;\n case NBD_OPT_ABORT:\n /* NBD spec says we must try to reply before\n * disconnecting, but that we must also tolerate\n * guests that don't wait for our reply. */\n nbd_negotiate_send_rep(client->ioc, NBD_REP_ACK, option, NULL);\n return 1;\n case NBD_OPT_EXPORT_NAME:\n return nbd_negotiate_handle_export_name(client, length,\n myflags, no_zeroes,\n errp);\n case NBD_OPT_INFO:\n case NBD_OPT_GO:\n ret = nbd_negotiate_handle_info(client, length, option,\n myflags, errp);\n if (ret == 1) {\n assert(option == NBD_OPT_GO);\n return 0;\n break;\n case NBD_OPT_STARTTLS:\n if (length) {\n ret = nbd_reject_length(client, length, option, false,\n errp);\n } else if (client->tlscreds) {\n ret = nbd_negotiate_send_rep_err(client->ioc,\n NBD_REP_ERR_INVALID,\n option, errp,\n \"TLS already enabled\");\n } else {\n ret = nbd_negotiate_send_rep_err(client->ioc,\n NBD_REP_ERR_POLICY,\n option, errp,\n \"TLS not configured\");\n break;\n case NBD_OPT_STRUCTURED_REPLY:\n if (length) {\n ret = nbd_reject_length(client, length, option, false,\n errp);\n } else if (client->structured_reply) {\n ret = nbd_negotiate_send_rep_err(\n client->ioc, NBD_REP_ERR_INVALID, option, errp,\n \"structured reply already negotiated\");\n } else {\n ret = nbd_negotiate_send_rep(client->ioc, NBD_REP_ACK,\n option, errp);\n client->structured_reply = true;\n myflags |= NBD_FLAG_SEND_DF;\n break;\n default:\n if (nbd_drop(client->ioc, length, errp) < 0) {\n return -EIO;\n ret = nbd_negotiate_send_rep_err(client->ioc,\n NBD_REP_ERR_UNSUP,\n option, errp,\n \"Unsupported option 0x%\"\n PRIx32 \" (%s)\", option,\n nbd_opt_lookup(option));\n break;\n } else {\n /*\n * If broken new-style we should drop the connection\n * for anything except NBD_OPT_EXPORT_NAME\n */\n switch (option) {\n case NBD_OPT_EXPORT_NAME:\n return nbd_negotiate_handle_export_name(client, length,\n myflags, no_zeroes,\n errp);\n default:\n error_setg(errp, \"Unsupported option 0x%\" PRIx32 \" (%s)\",\n option, nbd_opt_lookup(option));\n if (ret < 0) {\n return ret;", + "output": "1", + "index": 21932 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void mips_jazz_init(MemoryRegion *address_space,\n\n MemoryRegion *address_space_io,\n\n ram_addr_t ram_size,\n\n const char *cpu_model,\n\n enum jazz_model_e jazz_model)\n\n{\n\n char *filename;\n\n int bios_size, n;\n\n MIPSCPU *cpu;\n\n CPUMIPSState *env;\n\n qemu_irq *rc4030, *i8259;\n\n rc4030_dma *dmas;\n\n void* rc4030_opaque;\n\n MemoryRegion *rtc = g_new(MemoryRegion, 1);\n\n MemoryRegion *i8042 = g_new(MemoryRegion, 1);\n\n MemoryRegion *dma_dummy = g_new(MemoryRegion, 1);\n\n NICInfo *nd;\n\n DeviceState *dev;\n\n SysBusDevice *sysbus;\n\n ISABus *isa_bus;\n\n ISADevice *pit;\n\n DriveInfo *fds[MAX_FD];\n\n qemu_irq esp_reset, dma_enable;\n\n qemu_irq *cpu_exit_irq;\n\n MemoryRegion *ram = g_new(MemoryRegion, 1);\n\n MemoryRegion *bios = g_new(MemoryRegion, 1);\n\n MemoryRegion *bios2 = g_new(MemoryRegion, 1);\n\n\n\n /* init CPUs */\n\n if (cpu_model == NULL) {\n\n#ifdef TARGET_MIPS64\n\n cpu_model = \"R4000\";\n\n#else\n\n /* FIXME: All wrong, this maybe should be R3000 for the older JAZZs. */\n\n cpu_model = \"24Kf\";\n\n#endif\n\n }\n\n cpu = cpu_mips_init(cpu_model);\n\n if (cpu == NULL) {\n\n fprintf(stderr, \"Unable to find CPU definition\\n\");\n\n exit(1);\n\n }\n\n env = &cpu->env;\n\n qemu_register_reset(main_cpu_reset, cpu);\n\n\n\n /* allocate RAM */\n\n memory_region_init_ram(ram, \"mips_jazz.ram\", ram_size);\n\n vmstate_register_ram_global(ram);\n\n memory_region_add_subregion(address_space, 0, ram);\n\n\n\n memory_region_init_ram(bios, \"mips_jazz.bios\", MAGNUM_BIOS_SIZE);\n\n vmstate_register_ram_global(bios);\n\n memory_region_set_readonly(bios, true);\n\n memory_region_init_alias(bios2, \"mips_jazz.bios\", bios,\n\n 0, MAGNUM_BIOS_SIZE);\n\n memory_region_add_subregion(address_space, 0x1fc00000LL, bios);\n\n memory_region_add_subregion(address_space, 0xfff00000LL, bios2);\n\n\n\n /* load the BIOS image. */\n\n if (bios_name == NULL)\n\n bios_name = BIOS_FILENAME;\n\n filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);\n\n if (filename) {\n\n bios_size = load_image_targphys(filename, 0xfff00000LL,\n\n MAGNUM_BIOS_SIZE);\n\n g_free(filename);\n\n } else {\n\n bios_size = -1;\n\n }\n\n if (bios_size < 0 || bios_size > MAGNUM_BIOS_SIZE) {\n\n fprintf(stderr, \"qemu: Could not load MIPS bios '%s'\\n\",\n\n bios_name);\n\n exit(1);\n\n }\n\n\n\n /* Init CPU internal devices */\n\n cpu_mips_irq_init_cpu(env);\n\n cpu_mips_clock_init(env);\n\n\n\n /* Chipset */\n\n rc4030_opaque = rc4030_init(env->irq[6], env->irq[3], &rc4030, &dmas,\n\n address_space);\n\n memory_region_init_io(dma_dummy, &dma_dummy_ops, NULL, \"dummy_dma\", 0x1000);\n\n memory_region_add_subregion(address_space, 0x8000d000, dma_dummy);\n\n\n\n /* ISA devices */\n\n isa_bus = isa_bus_new(NULL, address_space_io);\n\n i8259 = i8259_init(isa_bus, env->irq[4]);\n\n isa_bus_irqs(isa_bus, i8259);\n\n cpu_exit_irq = qemu_allocate_irqs(cpu_request_exit, NULL, 1);\n\n DMA_init(0, cpu_exit_irq);\n\n pit = pit_init(isa_bus, 0x40, 0, NULL);\n\n pcspk_init(isa_bus, pit);\n\n\n\n /* ISA IO space at 0x90000000 */\n\n isa_mmio_init(0x90000000, 0x01000000);\n\n isa_mem_base = 0x11000000;\n\n\n\n /* Video card */\n\n switch (jazz_model) {\n\n case JAZZ_MAGNUM:\n\n dev = qdev_create(NULL, \"sysbus-g364\");\n\n qdev_init_nofail(dev);\n\n sysbus = sysbus_from_qdev(dev);\n\n sysbus_mmio_map(sysbus, 0, 0x60080000);\n\n sysbus_mmio_map(sysbus, 1, 0x40000000);\n\n sysbus_connect_irq(sysbus, 0, rc4030[3]);\n\n {\n\n /* Simple ROM, so user doesn't have to provide one */\n\n MemoryRegion *rom_mr = g_new(MemoryRegion, 1);\n\n memory_region_init_ram(rom_mr, \"g364fb.rom\", 0x80000);\n\n vmstate_register_ram_global(rom_mr);\n\n memory_region_set_readonly(rom_mr, true);\n\n uint8_t *rom = memory_region_get_ram_ptr(rom_mr);\n\n memory_region_add_subregion(address_space, 0x60000000, rom_mr);\n\n rom[0] = 0x10; /* Mips G364 */\n\n }\n\n break;\n\n case JAZZ_PICA61:\n\n isa_vga_mm_init(0x40000000, 0x60000000, 0, get_system_memory());\n\n break;\n\n default:\n\n break;\n\n }\n\n\n\n /* Network controller */\n\n for (n = 0; n < nb_nics; n++) {\n\n nd = &nd_table[n];\n\n if (!nd->model)\n\n nd->model = g_strdup(\"dp83932\");\n\n if (strcmp(nd->model, \"dp83932\") == 0) {\n\n dp83932_init(nd, 0x80001000, 2, get_system_memory(), rc4030[4],\n\n rc4030_opaque, rc4030_dma_memory_rw);\n\n break;\n\n } else if (strcmp(nd->model, \"?\") == 0) {\n\n fprintf(stderr, \"qemu: Supported NICs: dp83932\\n\");\n\n exit(1);\n\n } else {\n\n fprintf(stderr, \"qemu: Unsupported NIC: %s\\n\", nd->model);\n\n exit(1);\n\n }\n\n }\n\n\n\n /* SCSI adapter */\n\n esp_init(0x80002000, 0,\n\n rc4030_dma_read, rc4030_dma_write, dmas[0],\n\n rc4030[5], &esp_reset, &dma_enable);\n\n\n\n /* Floppy */\n\n if (drive_get_max_bus(IF_FLOPPY) >= MAX_FD) {\n\n fprintf(stderr, \"qemu: too many floppy drives\\n\");\n\n exit(1);\n\n }\n\n for (n = 0; n < MAX_FD; n++) {\n\n fds[n] = drive_get(IF_FLOPPY, 0, n);\n\n }\n\n fdctrl_init_sysbus(rc4030[1], 0, 0x80003000, fds);\n\n\n\n /* Real time clock */\n\n rtc_init(isa_bus, 1980, NULL);\n\n memory_region_init_io(rtc, &rtc_ops, NULL, \"rtc\", 0x1000);\n\n memory_region_add_subregion(address_space, 0x80004000, rtc);\n\n\n\n /* Keyboard (i8042) */\n\n i8042_mm_init(rc4030[6], rc4030[7], i8042, 0x1000, 0x1);\n\n memory_region_add_subregion(address_space, 0x80005000, i8042);\n\n\n\n /* Serial ports */\n\n if (serial_hds[0]) {\n\n serial_mm_init(address_space, 0x80006000, 0, rc4030[8], 8000000/16,\n\n serial_hds[0], DEVICE_NATIVE_ENDIAN);\n\n }\n\n if (serial_hds[1]) {\n\n serial_mm_init(address_space, 0x80007000, 0, rc4030[9], 8000000/16,\n\n serial_hds[1], DEVICE_NATIVE_ENDIAN);\n\n }\n\n\n\n /* Parallel port */\n\n if (parallel_hds[0])\n\n parallel_mm_init(address_space, 0x80008000, 0, rc4030[0],\n\n parallel_hds[0]);\n\n\n\n /* Sound card */\n\n /* FIXME: missing Jazz sound at 0x8000c000, rc4030[2] */\n\n audio_init(isa_bus, NULL);\n\n\n\n /* NVRAM */\n\n dev = qdev_create(NULL, \"ds1225y\");\n\n qdev_init_nofail(dev);\n\n sysbus = sysbus_from_qdev(dev);\n\n sysbus_mmio_map(sysbus, 0, 0x80009000);\n\n\n\n /* LED indicator */\n\n sysbus_create_simple(\"jazz-led\", 0x8000f000, NULL);\n\n}\n", + "output": "1", + "index": 4535 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void sun4uv_init(MemoryRegion *address_space_mem,\n\n MachineState *machine,\n\n const struct hwdef *hwdef)\n\n{\n\n SPARCCPU *cpu;\n\n Nvram *nvram;\n\n unsigned int i;\n\n uint64_t initrd_addr, initrd_size, kernel_addr, kernel_size, kernel_entry;\n\n PCIBus *pci_bus, *pci_bus2, *pci_bus3;\n\n ISABus *isa_bus;\n\n SysBusDevice *s;\n\n qemu_irq *ivec_irqs, *pbm_irqs;\n\n DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];\n\n DriveInfo *fd[MAX_FD];\n\n FWCfgState *fw_cfg;\n\n\n\n /* init CPUs */\n\n cpu = cpu_devinit(machine->cpu_model, hwdef);\n\n\n\n /* set up devices */\n\n ram_init(0, machine->ram_size);\n\n\n\n prom_init(hwdef->prom_addr, bios_name);\n\n\n\n ivec_irqs = qemu_allocate_irqs(cpu_set_ivec_irq, cpu, IVEC_MAX);\n\n pci_bus = pci_apb_init(APB_SPECIAL_BASE, APB_MEM_BASE, ivec_irqs, &pci_bus2,\n\n &pci_bus3, &pbm_irqs);\n\n pci_vga_init(pci_bus);\n\n\n\n // XXX Should be pci_bus3\n\n isa_bus = pci_ebus_init(pci_bus, -1, pbm_irqs);\n\n\n\n i = 0;\n\n if (hwdef->console_serial_base) {\n\n serial_mm_init(address_space_mem, hwdef->console_serial_base, 0,\n\n NULL, 115200, serial_hds[i], DEVICE_BIG_ENDIAN);\n\n i++;\n\n }\n\n\n\n serial_hds_isa_init(isa_bus, MAX_SERIAL_PORTS);\n\n parallel_hds_isa_init(isa_bus, MAX_PARALLEL_PORTS);\n\n\n\n for(i = 0; i < nb_nics; i++)\n\n pci_nic_init_nofail(&nd_table[i], pci_bus, \"ne2k_pci\", NULL);\n\n\n\n ide_drive_get(hd, ARRAY_SIZE(hd));\n\n\n\n pci_cmd646_ide_init(pci_bus, hd, 1);\n\n\n\n isa_create_simple(isa_bus, \"i8042\");\n\n for(i = 0; i < MAX_FD; i++) {\n\n fd[i] = drive_get(IF_FLOPPY, 0, i);\n\n }\n\n fdctrl_init_isa(isa_bus, fd);\n\n\n\n /* Map NVRAM into I/O (ebus) space */\n\n nvram = m48t59_init(NULL, 0, 0, NVRAM_SIZE, 1968, 59);\n\n s = SYS_BUS_DEVICE(nvram);\n\n memory_region_add_subregion(get_system_io(), 0x2000,\n\n sysbus_mmio_get_region(s, 0));\n\n \n\n initrd_size = 0;\n\n initrd_addr = 0;\n\n kernel_size = sun4u_load_kernel(machine->kernel_filename,\n\n machine->initrd_filename,\n\n ram_size, &initrd_size, &initrd_addr,\n\n &kernel_addr, &kernel_entry);\n\n\n\n sun4u_NVRAM_set_params(nvram, NVRAM_SIZE, \"Sun4u\", machine->ram_size,\n\n machine->boot_order,\n\n kernel_addr, kernel_size,\n\n machine->kernel_cmdline,\n\n initrd_addr, initrd_size,\n\n /* XXX: need an option to load a NVRAM image */\n\n 0,\n\n graphic_width, graphic_height, graphic_depth,\n\n (uint8_t *)&nd_table[0].macaddr);\n\n\n\n fw_cfg = fw_cfg_init_io(BIOS_CFG_IOPORT);\n\n fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)max_cpus);\n\n fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);\n\n fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);\n\n fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, hwdef->machine_id);\n\n fw_cfg_add_i64(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_entry);\n\n fw_cfg_add_i64(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);\n\n if (machine->kernel_cmdline) {\n\n fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE,\n\n strlen(machine->kernel_cmdline) + 1);\n\n fw_cfg_add_string(fw_cfg, FW_CFG_CMDLINE_DATA, machine->kernel_cmdline);\n\n } else {\n\n fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE, 0);\n\n }\n\n fw_cfg_add_i64(fw_cfg, FW_CFG_INITRD_ADDR, initrd_addr);\n\n fw_cfg_add_i64(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);\n\n fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, machine->boot_order[0]);\n\n\n\n fw_cfg_add_i16(fw_cfg, FW_CFG_SPARC64_WIDTH, graphic_width);\n\n fw_cfg_add_i16(fw_cfg, FW_CFG_SPARC64_HEIGHT, graphic_height);\n\n fw_cfg_add_i16(fw_cfg, FW_CFG_SPARC64_DEPTH, graphic_depth);\n\n\n\n qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);\n\n}\n", + "output": "0", + "index": 22775 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "void inter_predict(VP8Context *s, uint8_t *dst[3], VP8Macroblock *mb,\n\n int mb_x, int mb_y)\n\n{\n\n int x_off = mb_x << 4, y_off = mb_y << 4;\n\n int width = 16*s->mb_width, height = 16*s->mb_height;\n\n AVFrame *ref = s->framep[mb->ref_frame];\n\n VP56mv *bmv = mb->bmv;\n\n\n\n switch (mb->partitioning) {\n\n case VP8_SPLITMVMODE_NONE:\n\n vp8_mc_part(s, dst, ref, x_off, y_off,\n\n 0, 0, 16, 16, width, height, &mb->mv);\n\n break;\n\n case VP8_SPLITMVMODE_4x4: {\n\n int x, y;\n\n VP56mv uvmv;\n\n\n\n /* Y */\n\n for (y = 0; y < 4; y++) {\n\n for (x = 0; x < 4; x++) {\n\n vp8_mc(s, 1, dst[0] + 4*y*s->linesize + x*4,\n\n ref->data[0], &bmv[4*y + x],\n\n 4*x + x_off, 4*y + y_off, 4, 4,\n\n width, height, s->linesize,\n\n s->put_pixels_tab[2]);\n\n }\n\n }\n\n\n\n /* U/V */\n\n x_off >>= 1; y_off >>= 1; width >>= 1; height >>= 1;\n\n for (y = 0; y < 2; y++) {\n\n for (x = 0; x < 2; x++) {\n\n uvmv.x = mb->bmv[ 2*y * 4 + 2*x ].x +\n\n mb->bmv[ 2*y * 4 + 2*x+1].x +\n\n mb->bmv[(2*y+1) * 4 + 2*x ].x +\n\n mb->bmv[(2*y+1) * 4 + 2*x+1].x;\n\n uvmv.y = mb->bmv[ 2*y * 4 + 2*x ].y +\n\n mb->bmv[ 2*y * 4 + 2*x+1].y +\n\n mb->bmv[(2*y+1) * 4 + 2*x ].y +\n\n mb->bmv[(2*y+1) * 4 + 2*x+1].y;\n\n uvmv.x = (uvmv.x + 2 + (uvmv.x >> (INT_BIT-1))) >> 2;\n\n uvmv.y = (uvmv.y + 2 + (uvmv.y >> (INT_BIT-1))) >> 2;\n\n if (s->profile == 3) {\n\n uvmv.x &= ~7;\n\n uvmv.y &= ~7;\n\n }\n\n vp8_mc(s, 0, dst[1] + 4*y*s->uvlinesize + x*4,\n\n ref->data[1], &uvmv,\n\n 4*x + x_off, 4*y + y_off, 4, 4,\n\n width, height, s->uvlinesize,\n\n s->put_pixels_tab[2]);\n\n vp8_mc(s, 0, dst[2] + 4*y*s->uvlinesize + x*4,\n\n ref->data[2], &uvmv,\n\n 4*x + x_off, 4*y + y_off, 4, 4,\n\n width, height, s->uvlinesize,\n\n s->put_pixels_tab[2]);\n\n }\n\n }\n\n break;\n\n }\n\n case VP8_SPLITMVMODE_16x8:\n\n vp8_mc_part(s, dst, ref, x_off, y_off,\n\n 0, 0, 16, 8, width, height, &bmv[0]);\n\n vp8_mc_part(s, dst, ref, x_off, y_off,\n\n 0, 8, 16, 8, width, height, &bmv[1]);\n\n break;\n\n case VP8_SPLITMVMODE_8x16:\n\n vp8_mc_part(s, dst, ref, x_off, y_off,\n\n 0, 0, 8, 16, width, height, &bmv[0]);\n\n vp8_mc_part(s, dst, ref, x_off, y_off,\n\n 8, 0, 8, 16, width, height, &bmv[1]);\n\n break;\n\n case VP8_SPLITMVMODE_8x8:\n\n vp8_mc_part(s, dst, ref, x_off, y_off,\n\n 0, 0, 8, 8, width, height, &bmv[0]);\n\n vp8_mc_part(s, dst, ref, x_off, y_off,\n\n 8, 0, 8, 8, width, height, &bmv[1]);\n\n vp8_mc_part(s, dst, ref, x_off, y_off,\n\n 0, 8, 8, 8, width, height, &bmv[2]);\n\n vp8_mc_part(s, dst, ref, x_off, y_off,\n\n 8, 8, 8, 8, width, height, &bmv[3]);\n\n break;\n\n }\n\n}\n", + "output": "0", + "index": 10928 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void x86_cpu_realizefn(DeviceState *dev, Error **errp)\n\n{\n\n CPUState *cs = CPU(dev);\n\n X86CPU *cpu = X86_CPU(dev);\n\n X86CPUClass *xcc = X86_CPU_GET_CLASS(dev);\n\n CPUX86State *env = &cpu->env;\n\n Error *local_err = NULL;\n\n static bool ht_warned;\n\n\n\n if (xcc->kvm_required && !kvm_enabled()) {\n\n char *name = x86_cpu_class_get_model_name(xcc);\n\n error_setg(&local_err, \"CPU model '%s' requires KVM\", name);\n\n g_free(name);\n\n goto out;\n\n }\n\n\n\n if (cpu->apic_id == UNASSIGNED_APIC_ID) {\n\n error_setg(errp, \"apic-id property was not initialized properly\");\n\n return;\n\n }\n\n\n\n x86_cpu_load_features(cpu, &local_err);\n\n if (local_err) {\n\n goto out;\n\n }\n\n\n\n if (x86_cpu_filter_features(cpu) &&\n\n (cpu->check_cpuid || cpu->enforce_cpuid)) {\n\n x86_cpu_report_filtered_features(cpu);\n\n if (cpu->enforce_cpuid) {\n\n error_setg(&local_err,\n\n kvm_enabled() ?\n\n \"Host doesn't support requested features\" :\n\n \"TCG doesn't support requested features\");\n\n goto out;\n\n }\n\n }\n\n\n\n /* On AMD CPUs, some CPUID[8000_0001].EDX bits must match the bits on\n\n * CPUID[1].EDX.\n\n */\n\n if (IS_AMD_CPU(env)) {\n\n env->features[FEAT_8000_0001_EDX] &= ~CPUID_EXT2_AMD_ALIASES;\n\n env->features[FEAT_8000_0001_EDX] |= (env->features[FEAT_1_EDX]\n\n & CPUID_EXT2_AMD_ALIASES);\n\n }\n\n\n\n /* For 64bit systems think about the number of physical bits to present.\n\n * ideally this should be the same as the host; anything other than matching\n\n * the host can cause incorrect guest behaviour.\n\n * QEMU used to pick the magic value of 40 bits that corresponds to\n\n * consumer AMD devices but nothing else.\n\n */\n\n if (env->features[FEAT_8000_0001_EDX] & CPUID_EXT2_LM) {\n\n if (kvm_enabled()) {\n\n uint32_t host_phys_bits = x86_host_phys_bits();\n\n static bool warned;\n\n\n\n if (cpu->host_phys_bits) {\n\n /* The user asked for us to use the host physical bits */\n\n cpu->phys_bits = host_phys_bits;\n\n }\n\n\n\n /* Print a warning if the user set it to a value that's not the\n\n * host value.\n\n */\n\n if (cpu->phys_bits != host_phys_bits && cpu->phys_bits != 0 &&\n\n !warned) {\n\n error_report(\"Warning: Host physical bits (%u)\"\n\n \" does not match phys-bits property (%u)\",\n\n host_phys_bits, cpu->phys_bits);\n\n warned = true;\n\n }\n\n\n\n if (cpu->phys_bits &&\n\n (cpu->phys_bits > TARGET_PHYS_ADDR_SPACE_BITS ||\n\n cpu->phys_bits < 32)) {\n\n error_setg(errp, \"phys-bits should be between 32 and %u \"\n\n \" (but is %u)\",\n\n TARGET_PHYS_ADDR_SPACE_BITS, cpu->phys_bits);\n\n return;\n\n }\n\n } else {\n\n if (cpu->phys_bits && cpu->phys_bits != TCG_PHYS_ADDR_BITS) {\n\n error_setg(errp, \"TCG only supports phys-bits=%u\",\n\n TCG_PHYS_ADDR_BITS);\n\n return;\n\n }\n\n }\n\n /* 0 means it was not explicitly set by the user (or by machine\n\n * compat_props or by the host code above). In this case, the default\n\n * is the value used by TCG (40).\n\n */\n\n if (cpu->phys_bits == 0) {\n\n cpu->phys_bits = TCG_PHYS_ADDR_BITS;\n\n }\n\n } else {\n\n /* For 32 bit systems don't use the user set value, but keep\n\n * phys_bits consistent with what we tell the guest.\n\n */\n\n if (cpu->phys_bits != 0) {\n\n error_setg(errp, \"phys-bits is not user-configurable in 32 bit\");\n\n return;\n\n }\n\n\n\n if (env->features[FEAT_1_EDX] & CPUID_PSE36) {\n\n cpu->phys_bits = 36;\n\n } else {\n\n cpu->phys_bits = 32;\n\n }\n\n }\n\n cpu_exec_init(cs, &error_abort);\n\n\n\n if (tcg_enabled()) {\n\n tcg_x86_init();\n\n }\n\n\n\n#ifndef CONFIG_USER_ONLY\n\n qemu_register_reset(x86_cpu_machine_reset_cb, cpu);\n\n\n\n if (cpu->env.features[FEAT_1_EDX] & CPUID_APIC || smp_cpus > 1) {\n\n x86_cpu_apic_create(cpu, &local_err);\n\n if (local_err != NULL) {\n\n goto out;\n\n }\n\n }\n\n#endif\n\n\n\n mce_init(cpu);\n\n\n\n#ifndef CONFIG_USER_ONLY\n\n if (tcg_enabled()) {\n\n AddressSpace *newas = g_new(AddressSpace, 1);\n\n\n\n cpu->cpu_as_mem = g_new(MemoryRegion, 1);\n\n cpu->cpu_as_root = g_new(MemoryRegion, 1);\n\n\n\n /* Outer container... */\n\n memory_region_init(cpu->cpu_as_root, OBJECT(cpu), \"memory\", ~0ull);\n\n memory_region_set_enabled(cpu->cpu_as_root, true);\n\n\n\n /* ... with two regions inside: normal system memory with low\n\n * priority, and...\n\n */\n\n memory_region_init_alias(cpu->cpu_as_mem, OBJECT(cpu), \"memory\",\n\n get_system_memory(), 0, ~0ull);\n\n memory_region_add_subregion_overlap(cpu->cpu_as_root, 0, cpu->cpu_as_mem, 0);\n\n memory_region_set_enabled(cpu->cpu_as_mem, true);\n\n address_space_init(newas, cpu->cpu_as_root, \"CPU\");\n\n cs->num_ases = 1;\n\n cpu_address_space_init(cs, newas, 0);\n\n\n\n /* ... SMRAM with higher priority, linked from /machine/smram. */\n\n cpu->machine_done.notify = x86_cpu_machine_done;\n\n qemu_add_machine_init_done_notifier(&cpu->machine_done);\n\n }\n\n#endif\n\n\n\n qemu_init_vcpu(cs);\n\n\n\n /* Only Intel CPUs support hyperthreading. Even though QEMU fixes this\n\n * issue by adjusting CPUID_0000_0001_EBX and CPUID_8000_0008_ECX\n\n * based on inputs (sockets,cores,threads), it is still better to gives\n\n * users a warning.\n\n *\n\n * NOTE: the following code has to follow qemu_init_vcpu(). Otherwise\n\n * cs->nr_threads hasn't be populated yet and the checking is incorrect.\n\n */\n\n if (!IS_INTEL_CPU(env) && cs->nr_threads > 1 && !ht_warned) {\n\n error_report(\"AMD CPU doesn't support hyperthreading. Please configure\"\n\n \" -smp options properly.\");\n\n ht_warned = true;\n\n }\n\n\n\n x86_cpu_apic_realize(cpu, &local_err);\n\n if (local_err != NULL) {\n\n goto out;\n\n }\n\n cpu_reset(cs);\n\n\n\n xcc->parent_realize(dev, &local_err);\n\n\n\nout:\n\n if (local_err != NULL) {\n\n error_propagate(errp, local_err);\n\n return;\n\n }\n\n}\n", + "output": "1", + "index": 10098 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "DriveInfo *drive_init(QemuOpts *opts, void *opaque,\n\n int *fatal_error)\n\n{\n\n const char *buf;\n\n const char *file = NULL;\n\n char devname[128];\n\n const char *serial;\n\n const char *mediastr = \"\";\n\n BlockInterfaceType type;\n\n enum { MEDIA_DISK, MEDIA_CDROM } media;\n\n int bus_id, unit_id;\n\n int cyls, heads, secs, translation;\n\n BlockDriver *drv = NULL;\n\n QEMUMachine *machine = opaque;\n\n int max_devs;\n\n int index;\n\n int cache;\n\n int aio = 0;\n\n int bdrv_flags, onerror;\n\n const char *devaddr;\n\n DriveInfo *dinfo;\n\n int snapshot = 0;\n\n\n\n *fatal_error = 1;\n\n\n\n translation = BIOS_ATA_TRANSLATION_AUTO;\n\n cache = 1;\n\n\n\n if (machine && machine->use_scsi) {\n\n type = IF_SCSI;\n\n max_devs = MAX_SCSI_DEVS;\n\n pstrcpy(devname, sizeof(devname), \"scsi\");\n\n } else {\n\n type = IF_IDE;\n\n max_devs = MAX_IDE_DEVS;\n\n pstrcpy(devname, sizeof(devname), \"ide\");\n\n }\n\n media = MEDIA_DISK;\n\n\n\n /* extract parameters */\n\n bus_id = qemu_opt_get_number(opts, \"bus\", 0);\n\n unit_id = qemu_opt_get_number(opts, \"unit\", -1);\n\n index = qemu_opt_get_number(opts, \"index\", -1);\n\n\n\n cyls = qemu_opt_get_number(opts, \"cyls\", 0);\n\n heads = qemu_opt_get_number(opts, \"heads\", 0);\n\n secs = qemu_opt_get_number(opts, \"secs\", 0);\n\n\n\n snapshot = qemu_opt_get_bool(opts, \"snapshot\", 0);\n\n\n\n file = qemu_opt_get(opts, \"file\");\n\n serial = qemu_opt_get(opts, \"serial\");\n\n\n\n if ((buf = qemu_opt_get(opts, \"if\")) != NULL) {\n\n pstrcpy(devname, sizeof(devname), buf);\n\n if (!strcmp(buf, \"ide\")) {\n\n\t type = IF_IDE;\n\n max_devs = MAX_IDE_DEVS;\n\n } else if (!strcmp(buf, \"scsi\")) {\n\n\t type = IF_SCSI;\n\n max_devs = MAX_SCSI_DEVS;\n\n } else if (!strcmp(buf, \"floppy\")) {\n\n\t type = IF_FLOPPY;\n\n max_devs = 0;\n\n } else if (!strcmp(buf, \"pflash\")) {\n\n\t type = IF_PFLASH;\n\n max_devs = 0;\n\n\t} else if (!strcmp(buf, \"mtd\")) {\n\n\t type = IF_MTD;\n\n max_devs = 0;\n\n\t} else if (!strcmp(buf, \"sd\")) {\n\n\t type = IF_SD;\n\n max_devs = 0;\n\n } else if (!strcmp(buf, \"virtio\")) {\n\n type = IF_VIRTIO;\n\n max_devs = 0;\n\n\t} else if (!strcmp(buf, \"xen\")) {\n\n\t type = IF_XEN;\n\n max_devs = 0;\n\n\t} else if (!strcmp(buf, \"none\")) {\n\n\t type = IF_NONE;\n\n max_devs = 0;\n\n\t} else {\n\n fprintf(stderr, \"qemu: unsupported bus type '%s'\\n\", buf);\n\n return NULL;\n\n\t}\n\n }\n\n\n\n if (cyls || heads || secs) {\n\n if (cyls < 1 || cyls > 16383) {\n\n fprintf(stderr, \"qemu: '%s' invalid physical cyls number\\n\", buf);\n\n\t return NULL;\n\n\t}\n\n if (heads < 1 || heads > 16) {\n\n fprintf(stderr, \"qemu: '%s' invalid physical heads number\\n\", buf);\n\n\t return NULL;\n\n\t}\n\n if (secs < 1 || secs > 63) {\n\n fprintf(stderr, \"qemu: '%s' invalid physical secs number\\n\", buf);\n\n\t return NULL;\n\n\t}\n\n }\n\n\n\n if ((buf = qemu_opt_get(opts, \"trans\")) != NULL) {\n\n if (!cyls) {\n\n fprintf(stderr,\n\n \"qemu: '%s' trans must be used with cyls,heads and secs\\n\",\n\n buf);\n\n return NULL;\n\n }\n\n if (!strcmp(buf, \"none\"))\n\n translation = BIOS_ATA_TRANSLATION_NONE;\n\n else if (!strcmp(buf, \"lba\"))\n\n translation = BIOS_ATA_TRANSLATION_LBA;\n\n else if (!strcmp(buf, \"auto\"))\n\n translation = BIOS_ATA_TRANSLATION_AUTO;\n\n\telse {\n\n fprintf(stderr, \"qemu: '%s' invalid translation type\\n\", buf);\n\n\t return NULL;\n\n\t}\n\n }\n\n\n\n if ((buf = qemu_opt_get(opts, \"media\")) != NULL) {\n\n if (!strcmp(buf, \"disk\")) {\n\n\t media = MEDIA_DISK;\n\n\t} else if (!strcmp(buf, \"cdrom\")) {\n\n if (cyls || secs || heads) {\n\n fprintf(stderr,\n\n \"qemu: '%s' invalid physical CHS format\\n\", buf);\n\n\t return NULL;\n\n }\n\n\t media = MEDIA_CDROM;\n\n\t} else {\n\n\t fprintf(stderr, \"qemu: '%s' invalid media\\n\", buf);\n\n\t return NULL;\n\n\t}\n\n }\n\n\n\n if ((buf = qemu_opt_get(opts, \"cache\")) != NULL) {\n\n if (!strcmp(buf, \"off\") || !strcmp(buf, \"none\"))\n\n cache = 0;\n\n else if (!strcmp(buf, \"writethrough\"))\n\n cache = 1;\n\n else if (!strcmp(buf, \"writeback\"))\n\n cache = 2;\n\n else {\n\n fprintf(stderr, \"qemu: invalid cache option\\n\");\n\n return NULL;\n\n }\n\n }\n\n\n\n#ifdef CONFIG_LINUX_AIO\n\n if ((buf = qemu_opt_get(opts, \"aio\")) != NULL) {\n\n if (!strcmp(buf, \"threads\"))\n\n aio = 0;\n\n else if (!strcmp(buf, \"native\"))\n\n aio = 1;\n\n else {\n\n fprintf(stderr, \"qemu: invalid aio option\\n\");\n\n return NULL;\n\n }\n\n }\n\n#endif\n\n\n\n if ((buf = qemu_opt_get(opts, \"format\")) != NULL) {\n\n if (strcmp(buf, \"?\") == 0) {\n\n fprintf(stderr, \"qemu: Supported formats:\");\n\n bdrv_iterate_format(bdrv_format_print, NULL);\n\n fprintf(stderr, \"\\n\");\n\n\t return NULL;\n\n }\n\n drv = bdrv_find_format(buf);\n\n if (!drv) {\n\n fprintf(stderr, \"qemu: '%s' invalid format\\n\", buf);\n\n return NULL;\n\n }\n\n }\n\n\n\n onerror = BLOCK_ERR_STOP_ENOSPC;\n\n if ((buf = qemu_opt_get(opts, \"werror\")) != NULL) {\n\n if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) {\n\n fprintf(stderr, \"werror is no supported by this format\\n\");\n\n return NULL;\n\n }\n\n if (!strcmp(buf, \"ignore\"))\n\n onerror = BLOCK_ERR_IGNORE;\n\n else if (!strcmp(buf, \"enospc\"))\n\n onerror = BLOCK_ERR_STOP_ENOSPC;\n\n else if (!strcmp(buf, \"stop\"))\n\n onerror = BLOCK_ERR_STOP_ANY;\n\n else if (!strcmp(buf, \"report\"))\n\n onerror = BLOCK_ERR_REPORT;\n\n else {\n\n fprintf(stderr, \"qemu: '%s' invalid write error action\\n\", buf);\n\n return NULL;\n\n }\n\n }\n\n\n\n if ((devaddr = qemu_opt_get(opts, \"addr\")) != NULL) {\n\n if (type != IF_VIRTIO) {\n\n fprintf(stderr, \"addr is not supported\\n\");\n\n return NULL;\n\n }\n\n }\n\n\n\n /* compute bus and unit according index */\n\n\n\n if (index != -1) {\n\n if (bus_id != 0 || unit_id != -1) {\n\n fprintf(stderr,\n\n \"qemu: index cannot be used with bus and unit\\n\");\n\n return NULL;\n\n }\n\n if (max_devs == 0)\n\n {\n\n unit_id = index;\n\n bus_id = 0;\n\n } else {\n\n unit_id = index % max_devs;\n\n bus_id = index / max_devs;\n\n }\n\n }\n\n\n\n /* if user doesn't specify a unit_id,\n\n * try to find the first free\n\n */\n\n\n\n if (unit_id == -1) {\n\n unit_id = 0;\n\n while (drive_get(type, bus_id, unit_id) != NULL) {\n\n unit_id++;\n\n if (max_devs && unit_id >= max_devs) {\n\n unit_id -= max_devs;\n\n bus_id++;\n\n }\n\n }\n\n }\n\n\n\n /* check unit id */\n\n\n\n if (max_devs && unit_id >= max_devs) {\n\n fprintf(stderr, \"qemu: unit %d too big (max is %d)\\n\",\n\n unit_id, max_devs - 1);\n\n return NULL;\n\n }\n\n\n\n /*\n\n * ignore multiple definitions\n\n */\n\n\n\n if (drive_get(type, bus_id, unit_id) != NULL) {\n\n *fatal_error = 0;\n\n return NULL;\n\n }\n\n\n\n /* init */\n\n\n\n dinfo = qemu_mallocz(sizeof(*dinfo));\n\n if ((buf = qemu_opts_id(opts)) != NULL) {\n\n dinfo->id = qemu_strdup(buf);\n\n } else {\n\n /* no id supplied -> create one */\n\n dinfo->id = qemu_mallocz(32);\n\n if (type == IF_IDE || type == IF_SCSI)\n\n mediastr = (media == MEDIA_CDROM) ? \"-cd\" : \"-hd\";\n\n if (max_devs)\n\n snprintf(dinfo->id, 32, \"%s%i%s%i\",\n\n devname, bus_id, mediastr, unit_id);\n\n else\n\n snprintf(dinfo->id, 32, \"%s%s%i\",\n\n devname, mediastr, unit_id);\n\n }\n\n dinfo->bdrv = bdrv_new(dinfo->id);\n\n dinfo->devaddr = devaddr;\n\n dinfo->type = type;\n\n dinfo->bus = bus_id;\n\n dinfo->unit = unit_id;\n\n dinfo->onerror = onerror;\n\n dinfo->opts = opts;\n\n if (serial)\n\n strncpy(dinfo->serial, serial, sizeof(serial));\n\n TAILQ_INSERT_TAIL(&drives, dinfo, next);\n\n\n\n switch(type) {\n\n case IF_IDE:\n\n case IF_SCSI:\n\n case IF_XEN:\n\n switch(media) {\n\n\tcase MEDIA_DISK:\n\n if (cyls != 0) {\n\n bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);\n\n bdrv_set_translation_hint(dinfo->bdrv, translation);\n\n }\n\n\t break;\n\n\tcase MEDIA_CDROM:\n\n bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);\n\n\t break;\n\n\t}\n\n break;\n\n case IF_SD:\n\n /* FIXME: This isn't really a floppy, but it's a reasonable\n\n approximation. */\n\n case IF_FLOPPY:\n\n bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);\n\n break;\n\n case IF_PFLASH:\n\n case IF_MTD:\n\n case IF_NONE:\n\n break;\n\n case IF_VIRTIO:\n\n /* add virtio block device */\n\n opts = qemu_opts_create(&qemu_device_opts, NULL, 0);\n\n qemu_opt_set(opts, \"driver\", \"virtio-blk-pci\");\n\n qemu_opt_set(opts, \"drive\", dinfo->id);\n\n if (devaddr)\n\n qemu_opt_set(opts, \"addr\", devaddr);\n\n break;\n\n case IF_COUNT:\n\n abort();\n\n }\n\n if (!file) {\n\n *fatal_error = 0;\n\n return NULL;\n\n }\n\n bdrv_flags = 0;\n\n if (snapshot) {\n\n bdrv_flags |= BDRV_O_SNAPSHOT;\n\n cache = 2; /* always use write-back with snapshot */\n\n }\n\n if (cache == 0) /* no caching */\n\n bdrv_flags |= BDRV_O_NOCACHE;\n\n else if (cache == 2) /* write-back */\n\n bdrv_flags |= BDRV_O_CACHE_WB;\n\n\n\n if (aio == 1) {\n\n bdrv_flags |= BDRV_O_NATIVE_AIO;\n\n } else {\n\n bdrv_flags &= ~BDRV_O_NATIVE_AIO;\n\n }\n\n\n\n if (bdrv_open2(dinfo->bdrv, file, bdrv_flags, drv) < 0) {\n\n fprintf(stderr, \"qemu: could not open disk image %s\\n\",\n\n file);\n\n return NULL;\n\n }\n\n\n\n if (bdrv_key_required(dinfo->bdrv))\n\n autostart = 0;\n\n *fatal_error = 0;\n\n return dinfo;\n\n}\n", + "output": "0", + "index": 20288 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,\n\n const AVFrame *frame, int *got_packet)\n\n{\n\n SgiContext *s = avctx->priv_data;\n\n const AVFrame * const p = frame;\n\n PutByteContext pbc;\n\n uint8_t *in_buf, *encode_buf;\n\n int x, y, z, length, tablesize, ret;\n\n unsigned int width, height, depth, dimension;\n\n unsigned int bytes_per_channel, pixmax, put_be;\n\n\n\n#if FF_API_CODED_FRAME\n\nFF_DISABLE_DEPRECATION_WARNINGS\n\n avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;\n\n avctx->coded_frame->key_frame = 1;\n\nFF_ENABLE_DEPRECATION_WARNINGS\n\n#endif\n\n\n\n#if FF_API_CODER_TYPE\n\nFF_DISABLE_DEPRECATION_WARNINGS\n\n if (avctx->coder_type == FF_CODER_TYPE_RAW)\n\n s->rle = 0;\n\nFF_ENABLE_DEPRECATION_WARNINGS\n\n#endif\n\n\n\n width = avctx->width;\n\n height = avctx->height;\n\n bytes_per_channel = 1;\n\n pixmax = 0xFF;\n\n put_be = HAVE_BIGENDIAN;\n\n\n\n switch (avctx->pix_fmt) {\n\n case AV_PIX_FMT_GRAY8:\n\n dimension = SGI_SINGLE_CHAN;\n\n depth = SGI_GRAYSCALE;\n\n break;\n\n case AV_PIX_FMT_RGB24:\n\n dimension = SGI_MULTI_CHAN;\n\n depth = SGI_RGB;\n\n break;\n\n case AV_PIX_FMT_RGBA:\n\n dimension = SGI_MULTI_CHAN;\n\n depth = SGI_RGBA;\n\n break;\n\n case AV_PIX_FMT_GRAY16LE:\n\n put_be = !HAVE_BIGENDIAN;\n\n case AV_PIX_FMT_GRAY16BE:\n\n bytes_per_channel = 2;\n\n pixmax = 0xFFFF;\n\n dimension = SGI_SINGLE_CHAN;\n\n depth = SGI_GRAYSCALE;\n\n break;\n\n case AV_PIX_FMT_RGB48LE:\n\n put_be = !HAVE_BIGENDIAN;\n\n case AV_PIX_FMT_RGB48BE:\n\n bytes_per_channel = 2;\n\n pixmax = 0xFFFF;\n\n dimension = SGI_MULTI_CHAN;\n\n depth = SGI_RGB;\n\n break;\n\n case AV_PIX_FMT_RGBA64LE:\n\n put_be = !HAVE_BIGENDIAN;\n\n case AV_PIX_FMT_RGBA64BE:\n\n bytes_per_channel = 2;\n\n pixmax = 0xFFFF;\n\n dimension = SGI_MULTI_CHAN;\n\n depth = SGI_RGBA;\n\n break;\n\n default:\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n tablesize = depth * height * 4;\n\n length = SGI_HEADER_SIZE;\n\n if (!s->rle)\n\n length += depth * height * width;\n\n else // assume sgi_rle_encode() produces at most 2x size of input\n\n length += tablesize * 2 + depth * height * (2 * width + 1);\n\n\n\n if ((ret = ff_alloc_packet(pkt, bytes_per_channel * length)) < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"Error getting output packet of size %d.\\n\", length);\n\n return ret;\n\n }\n\n\n\n bytestream2_init_writer(&pbc, pkt->data, pkt->size);\n\n\n\n /* Encode header. */\n\n bytestream2_put_be16(&pbc, SGI_MAGIC);\n\n bytestream2_put_byte(&pbc, s->rle); /* RLE 1 - VERBATIM 0 */\n\n bytestream2_put_byte(&pbc, bytes_per_channel);\n\n bytestream2_put_be16(&pbc, dimension);\n\n bytestream2_put_be16(&pbc, width);\n\n bytestream2_put_be16(&pbc, height);\n\n bytestream2_put_be16(&pbc, depth);\n\n\n\n bytestream2_put_be32(&pbc, 0L); /* pixmin */\n\n bytestream2_put_be32(&pbc, pixmax);\n\n bytestream2_put_be32(&pbc, 0L); /* dummy */\n\n\n\n /* name */\n\n bytestream2_skip_p(&pbc, 80);\n\n\n\n /* colormap */\n\n bytestream2_put_be32(&pbc, 0L);\n\n\n\n /* The rest of the 512 byte header is unused. */\n\n bytestream2_skip_p(&pbc, 404);\n\n\n\n if (s->rle) {\n\n PutByteContext taboff_pcb, tablen_pcb;\n\n\n\n /* Skip RLE offset table. */\n\n bytestream2_init_writer(&taboff_pcb, pbc.buffer, tablesize);\n\n bytestream2_skip_p(&pbc, tablesize);\n\n\n\n /* Skip RLE length table. */\n\n bytestream2_init_writer(&tablen_pcb, pbc.buffer, tablesize);\n\n bytestream2_skip_p(&pbc, tablesize);\n\n\n\n /* Make an intermediate consecutive buffer. */\n\n if (!(encode_buf = av_malloc(width * bytes_per_channel)))\n\n return AVERROR(ENOMEM);\n\n\n\n for (z = 0; z < depth; z++) {\n\n in_buf = p->data[0] + p->linesize[0] * (height - 1) + z * bytes_per_channel;\n\n\n\n for (y = 0; y < height; y++) {\n\n bytestream2_put_be32(&taboff_pcb, bytestream2_tell_p(&pbc));\n\n\n\n for (x = 0; x < width * bytes_per_channel; x += bytes_per_channel)\n\n encode_buf[x] = in_buf[depth * x];\n\n\n\n length = sgi_rle_encode(&pbc, encode_buf, width,\n\n bytes_per_channel);\n\n if (length < 1) {\n\n av_free(encode_buf);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n bytestream2_put_be32(&tablen_pcb, length);\n\n in_buf -= p->linesize[0];\n\n }\n\n }\n\n\n\n av_free(encode_buf);\n\n } else {\n\n for (z = 0; z < depth; z++) {\n\n in_buf = p->data[0] + p->linesize[0] * (height - 1) + z * bytes_per_channel;\n\n\n\n for (y = 0; y < height; y++) {\n\n for (x = 0; x < width * depth; x += depth)\n\n if (bytes_per_channel == 1)\n\n bytestream2_put_byte(&pbc, in_buf[x]);\n\n else\n\n if (put_be)\n\n bytestream2_put_be16(&pbc, ((uint16_t *)in_buf)[x]);\n\n else\n\n bytestream2_put_le16(&pbc, ((uint16_t *)in_buf)[x]);\n\n\n\n in_buf -= p->linesize[0];\n\n }\n\n }\n\n }\n\n\n\n /* total length */\n\n pkt->size = bytestream2_tell_p(&pbc);\n\n pkt->flags |= AV_PKT_FLAG_KEY;\n\n *got_packet = 1;\n\n\n\n return 0;\n\n}\n", + "output": "0", + "index": 19382 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int img_convert(int argc, char **argv)\n\n{\n\n int c, n, n1, bs_n, bs_i, compress, cluster_sectors, skip_create;\n\n int64_t ret = 0;\n\n int progress = 0, flags;\n\n const char *fmt, *out_fmt, *cache, *out_baseimg, *out_filename;\n\n BlockDriver *drv, *proto_drv;\n\n BlockDriverState **bs = NULL, *out_bs = NULL;\n\n int64_t total_sectors, nb_sectors, sector_num, bs_offset;\n\n int64_t *bs_sectors = NULL;\n\n uint8_t * buf = NULL;\n\n size_t bufsectors = IO_BUF_SIZE / BDRV_SECTOR_SIZE;\n\n const uint8_t *buf1;\n\n BlockDriverInfo bdi;\n\n QemuOpts *opts = NULL;\n\n QemuOptsList *create_opts = NULL;\n\n const char *out_baseimg_param;\n\n char *options = NULL;\n\n const char *snapshot_name = NULL;\n\n int min_sparse = 8; /* Need at least 4k of zeros for sparse detection */\n\n bool quiet = false;\n\n Error *local_err = NULL;\n\n QemuOpts *sn_opts = NULL;\n\n\n\n fmt = NULL;\n\n out_fmt = \"raw\";\n\n cache = \"unsafe\";\n\n out_baseimg = NULL;\n\n compress = 0;\n\n skip_create = 0;\n\n for(;;) {\n\n c = getopt(argc, argv, \"f:O:B:s:hce6o:pS:t:qnl:\");\n\n if (c == -1) {\n\n break;\n\n }\n\n switch(c) {\n\n case '?':\n\n case 'h':\n\n help();\n\n break;\n\n case 'f':\n\n fmt = optarg;\n\n break;\n\n case 'O':\n\n out_fmt = optarg;\n\n break;\n\n case 'B':\n\n out_baseimg = optarg;\n\n break;\n\n case 'c':\n\n compress = 1;\n\n break;\n\n case 'e':\n\n error_report(\"option -e is deprecated, please use \\'-o \"\n\n \"encryption\\' instead!\");\n\n ret = -1;\n\n goto fail_getopt;\n\n case '6':\n\n error_report(\"option -6 is deprecated, please use \\'-o \"\n\n \"compat6\\' instead!\");\n\n ret = -1;\n\n goto fail_getopt;\n\n case 'o':\n\n if (!is_valid_option_list(optarg)) {\n\n error_report(\"Invalid option list: %s\", optarg);\n\n ret = -1;\n\n goto fail_getopt;\n\n }\n\n if (!options) {\n\n options = g_strdup(optarg);\n\n } else {\n\n char *old_options = options;\n\n options = g_strdup_printf(\"%s,%s\", options, optarg);\n\n g_free(old_options);\n\n }\n\n break;\n\n case 's':\n\n snapshot_name = optarg;\n\n break;\n\n case 'l':\n\n if (strstart(optarg, SNAPSHOT_OPT_BASE, NULL)) {\n\n sn_opts = qemu_opts_parse(&internal_snapshot_opts, optarg, 0);\n\n if (!sn_opts) {\n\n error_report(\"Failed in parsing snapshot param '%s'\",\n\n optarg);\n\n ret = -1;\n\n goto fail_getopt;\n\n }\n\n } else {\n\n snapshot_name = optarg;\n\n }\n\n break;\n\n case 'S':\n\n {\n\n int64_t sval;\n\n char *end;\n\n sval = strtosz_suffix(optarg, &end, STRTOSZ_DEFSUFFIX_B);\n\n if (sval < 0 || *end) {\n\n error_report(\"Invalid minimum zero buffer size for sparse output specified\");\n\n ret = -1;\n\n goto fail_getopt;\n\n }\n\n\n\n min_sparse = sval / BDRV_SECTOR_SIZE;\n\n break;\n\n }\n\n case 'p':\n\n progress = 1;\n\n break;\n\n case 't':\n\n cache = optarg;\n\n break;\n\n case 'q':\n\n quiet = true;\n\n break;\n\n case 'n':\n\n skip_create = 1;\n\n break;\n\n }\n\n }\n\n\n\n /* Initialize before goto out */\n\n if (quiet) {\n\n progress = 0;\n\n }\n\n qemu_progress_init(progress, 1.0);\n\n\n\n\n\n bs_n = argc - optind - 1;\n\n out_filename = bs_n >= 1 ? argv[argc - 1] : NULL;\n\n\n\n if (options && has_help_option(options)) {\n\n ret = print_block_option_help(out_filename, out_fmt);\n\n goto out;\n\n }\n\n\n\n if (bs_n < 1) {\n\n error_exit(\"Must specify image file name\");\n\n }\n\n\n\n\n\n if (bs_n > 1 && out_baseimg) {\n\n error_report(\"-B makes no sense when concatenating multiple input \"\n\n \"images\");\n\n ret = -1;\n\n goto out;\n\n }\n\n\n\n qemu_progress_print(0, 100);\n\n\n\n bs = g_new0(BlockDriverState *, bs_n);\n\n bs_sectors = g_new(int64_t, bs_n);\n\n\n\n total_sectors = 0;\n\n for (bs_i = 0; bs_i < bs_n; bs_i++) {\n\n char *id = bs_n > 1 ? g_strdup_printf(\"source %d\", bs_i)\n\n : g_strdup(\"source\");\n\n bs[bs_i] = bdrv_new_open(id, argv[optind + bs_i], fmt, BDRV_O_FLAGS,\n\n true, quiet);\n\n g_free(id);\n\n if (!bs[bs_i]) {\n\n error_report(\"Could not open '%s'\", argv[optind + bs_i]);\n\n ret = -1;\n\n goto out;\n\n }\n\n bs_sectors[bs_i] = bdrv_nb_sectors(bs[bs_i]);\n\n if (bs_sectors[bs_i] < 0) {\n\n error_report(\"Could not get size of %s: %s\",\n\n argv[optind + bs_i], strerror(-bs_sectors[bs_i]));\n\n ret = -1;\n\n goto out;\n\n }\n\n total_sectors += bs_sectors[bs_i];\n\n }\n\n\n\n if (sn_opts) {\n\n ret = bdrv_snapshot_load_tmp(bs[0],\n\n qemu_opt_get(sn_opts, SNAPSHOT_OPT_ID),\n\n qemu_opt_get(sn_opts, SNAPSHOT_OPT_NAME),\n\n &local_err);\n\n } else if (snapshot_name != NULL) {\n\n if (bs_n > 1) {\n\n error_report(\"No support for concatenating multiple snapshot\");\n\n ret = -1;\n\n goto out;\n\n }\n\n\n\n bdrv_snapshot_load_tmp_by_id_or_name(bs[0], snapshot_name, &local_err);\n\n }\n\n if (local_err) {\n\n error_report(\"Failed to load snapshot: %s\",\n\n error_get_pretty(local_err));\n\n error_free(local_err);\n\n ret = -1;\n\n goto out;\n\n }\n\n\n\n /* Find driver and parse its options */\n\n drv = bdrv_find_format(out_fmt);\n\n if (!drv) {\n\n error_report(\"Unknown file format '%s'\", out_fmt);\n\n ret = -1;\n\n goto out;\n\n }\n\n\n\n proto_drv = bdrv_find_protocol(out_filename, true);\n\n if (!proto_drv) {\n\n error_report(\"Unknown protocol '%s'\", out_filename);\n\n ret = -1;\n\n goto out;\n\n }\n\n\n\n create_opts = qemu_opts_append(create_opts, drv->create_opts);\n\n create_opts = qemu_opts_append(create_opts, proto_drv->create_opts);\n\n\n\n opts = qemu_opts_create(create_opts, NULL, 0, &error_abort);\n\n if (options && qemu_opts_do_parse(opts, options, NULL)) {\n\n error_report(\"Invalid options for file format '%s'\", out_fmt);\n\n ret = -1;\n\n goto out;\n\n }\n\n\n\n qemu_opt_set_number(opts, BLOCK_OPT_SIZE, total_sectors * 512);\n\n ret = add_old_style_options(out_fmt, opts, out_baseimg, NULL);\n\n if (ret < 0) {\n\n goto out;\n\n }\n\n\n\n /* Get backing file name if -o backing_file was used */\n\n out_baseimg_param = qemu_opt_get(opts, BLOCK_OPT_BACKING_FILE);\n\n if (out_baseimg_param) {\n\n out_baseimg = out_baseimg_param;\n\n }\n\n\n\n /* Check if compression is supported */\n\n if (compress) {\n\n bool encryption =\n\n qemu_opt_get_bool(opts, BLOCK_OPT_ENCRYPT, false);\n\n const char *preallocation =\n\n qemu_opt_get(opts, BLOCK_OPT_PREALLOC);\n\n\n\n if (!drv->bdrv_write_compressed) {\n\n error_report(\"Compression not supported for this file format\");\n\n ret = -1;\n\n goto out;\n\n }\n\n\n\n if (encryption) {\n\n error_report(\"Compression and encryption not supported at \"\n\n \"the same time\");\n\n ret = -1;\n\n goto out;\n\n }\n\n\n\n if (preallocation\n\n && strcmp(preallocation, \"off\"))\n\n {\n\n error_report(\"Compression and preallocation not supported at \"\n\n \"the same time\");\n\n ret = -1;\n\n goto out;\n\n }\n\n }\n\n\n\n if (!skip_create) {\n\n /* Create the new image */\n\n ret = bdrv_create(drv, out_filename, opts, &local_err);\n\n if (ret < 0) {\n\n error_report(\"%s: error while converting %s: %s\",\n\n out_filename, out_fmt, error_get_pretty(local_err));\n\n error_free(local_err);\n\n goto out;\n\n }\n\n }\n\n\n\n flags = min_sparse ? (BDRV_O_RDWR | BDRV_O_UNMAP) : BDRV_O_RDWR;\n\n ret = bdrv_parse_cache_flags(cache, &flags);\n\n if (ret < 0) {\n\n error_report(\"Invalid cache option: %s\", cache);\n\n goto out;\n\n }\n\n\n\n out_bs = bdrv_new_open(\"target\", out_filename, out_fmt, flags, true, quiet);\n\n if (!out_bs) {\n\n ret = -1;\n\n goto out;\n\n }\n\n\n\n bs_i = 0;\n\n bs_offset = 0;\n\n\n\n /* increase bufsectors from the default 4096 (2M) if opt_transfer_length\n\n * or discard_alignment of the out_bs is greater. Limit to 32768 (16MB)\n\n * as maximum. */\n\n bufsectors = MIN(32768,\n\n MAX(bufsectors, MAX(out_bs->bl.opt_transfer_length,\n\n out_bs->bl.discard_alignment))\n\n );\n\n\n\n buf = qemu_blockalign(out_bs, bufsectors * BDRV_SECTOR_SIZE);\n\n\n\n if (skip_create) {\n\n int64_t output_sectors = bdrv_nb_sectors(out_bs);\n\n if (output_sectors < 0) {\n\n error_report(\"unable to get output image length: %s\\n\",\n\n strerror(-output_sectors));\n\n ret = -1;\n\n goto out;\n\n } else if (output_sectors < total_sectors) {\n\n error_report(\"output file is smaller than input file\");\n\n ret = -1;\n\n goto out;\n\n }\n\n }\n\n\n\n cluster_sectors = 0;\n\n ret = bdrv_get_info(out_bs, &bdi);\n\n if (ret < 0) {\n\n if (compress) {\n\n error_report(\"could not get block driver info\");\n\n goto out;\n\n }\n\n } else {\n\n compress = compress || bdi.needs_compressed_writes;\n\n cluster_sectors = bdi.cluster_size / BDRV_SECTOR_SIZE;\n\n }\n\n\n\n if (compress) {\n\n if (cluster_sectors <= 0 || cluster_sectors > bufsectors) {\n\n error_report(\"invalid cluster size\");\n\n ret = -1;\n\n goto out;\n\n }\n\n sector_num = 0;\n\n\n\n nb_sectors = total_sectors;\n\n\n\n for(;;) {\n\n int64_t bs_num;\n\n int remainder;\n\n uint8_t *buf2;\n\n\n\n nb_sectors = total_sectors - sector_num;\n\n if (nb_sectors <= 0)\n\n break;\n\n if (nb_sectors >= cluster_sectors)\n\n n = cluster_sectors;\n\n else\n\n n = nb_sectors;\n\n\n\n bs_num = sector_num - bs_offset;\n\n assert (bs_num >= 0);\n\n remainder = n;\n\n buf2 = buf;\n\n while (remainder > 0) {\n\n int nlow;\n\n while (bs_num == bs_sectors[bs_i]) {\n\n bs_offset += bs_sectors[bs_i];\n\n bs_i++;\n\n assert (bs_i < bs_n);\n\n bs_num = 0;\n\n /* printf(\"changing part: sector_num=%\" PRId64 \", \"\n\n \"bs_i=%d, bs_offset=%\" PRId64 \", bs_sectors=%\" PRId64\n\n \"\\n\", sector_num, bs_i, bs_offset, bs_sectors[bs_i]); */\n\n }\n\n assert (bs_num < bs_sectors[bs_i]);\n\n\n\n nlow = remainder > bs_sectors[bs_i] - bs_num\n\n ? bs_sectors[bs_i] - bs_num : remainder;\n\n\n\n ret = bdrv_read(bs[bs_i], bs_num, buf2, nlow);\n\n if (ret < 0) {\n\n error_report(\"error while reading sector %\" PRId64 \": %s\",\n\n bs_num, strerror(-ret));\n\n goto out;\n\n }\n\n\n\n buf2 += nlow * 512;\n\n bs_num += nlow;\n\n\n\n remainder -= nlow;\n\n }\n\n assert (remainder == 0);\n\n\n\n if (!buffer_is_zero(buf, n * BDRV_SECTOR_SIZE)) {\n\n ret = bdrv_write_compressed(out_bs, sector_num, buf, n);\n\n if (ret != 0) {\n\n error_report(\"error while compressing sector %\" PRId64\n\n \": %s\", sector_num, strerror(-ret));\n\n goto out;\n\n }\n\n }\n\n sector_num += n;\n\n qemu_progress_print(100.0 * sector_num / total_sectors, 0);\n\n }\n\n /* signal EOF to align */\n\n bdrv_write_compressed(out_bs, 0, NULL, 0);\n\n } else {\n\n int64_t sectors_to_read, sectors_read, sector_num_next_status;\n\n bool count_allocated_sectors;\n\n int has_zero_init = min_sparse ? bdrv_has_zero_init(out_bs) : 0;\n\n\n\n if (!has_zero_init && bdrv_can_write_zeroes_with_unmap(out_bs)) {\n\n ret = bdrv_make_zero(out_bs, BDRV_REQ_MAY_UNMAP);\n\n if (ret < 0) {\n\n goto out;\n\n }\n\n has_zero_init = 1;\n\n }\n\n\n\n sectors_to_read = total_sectors;\n\n count_allocated_sectors = progress && (out_baseimg || has_zero_init);\n\nrestart:\n\n sector_num = 0; // total number of sectors converted so far\n\n sectors_read = 0;\n\n sector_num_next_status = 0;\n\n\n\n for(;;) {\n\n nb_sectors = total_sectors - sector_num;\n\n if (nb_sectors <= 0) {\n\n if (count_allocated_sectors) {\n\n sectors_to_read = sectors_read;\n\n count_allocated_sectors = false;\n\n goto restart;\n\n }\n\n ret = 0;\n\n break;\n\n }\n\n\n\n while (sector_num - bs_offset >= bs_sectors[bs_i]) {\n\n bs_offset += bs_sectors[bs_i];\n\n bs_i ++;\n\n assert (bs_i < bs_n);\n\n /* printf(\"changing part: sector_num=%\" PRId64 \", bs_i=%d, \"\n\n \"bs_offset=%\" PRId64 \", bs_sectors=%\" PRId64 \"\\n\",\n\n sector_num, bs_i, bs_offset, bs_sectors[bs_i]); */\n\n }\n\n\n\n if ((out_baseimg || has_zero_init) &&\n\n sector_num >= sector_num_next_status) {\n\n n = nb_sectors > INT_MAX ? INT_MAX : nb_sectors;\n\n ret = bdrv_get_block_status(bs[bs_i], sector_num - bs_offset,\n\n n, &n1);\n\n if (ret < 0) {\n\n error_report(\"error while reading block status of sector %\"\n\n PRId64 \": %s\", sector_num - bs_offset,\n\n strerror(-ret));\n\n goto out;\n\n }\n\n /* If the output image is zero initialized, we are not working\n\n * on a shared base and the input is zero we can skip the next\n\n * n1 sectors */\n\n if (has_zero_init && !out_baseimg && (ret & BDRV_BLOCK_ZERO)) {\n\n sector_num += n1;\n\n continue;\n\n }\n\n /* If the output image is being created as a copy on write\n\n * image, assume that sectors which are unallocated in the\n\n * input image are present in both the output's and input's\n\n * base images (no need to copy them). */\n\n if (out_baseimg) {\n\n if (!(ret & BDRV_BLOCK_DATA)) {\n\n sector_num += n1;\n\n continue;\n\n }\n\n /* The next 'n1' sectors are allocated in the input image.\n\n * Copy only those as they may be followed by unallocated\n\n * sectors. */\n\n nb_sectors = n1;\n\n }\n\n /* avoid redundant callouts to get_block_status */\n\n sector_num_next_status = sector_num + n1;\n\n }\n\n\n\n n = MIN(nb_sectors, bufsectors);\n\n\n\n /* round down request length to an aligned sector, but\n\n * do not bother doing this on short requests. They happen\n\n * when we found an all-zero area, and the next sector to\n\n * write will not be sector_num + n. */\n\n if (cluster_sectors > 0 && n >= cluster_sectors) {\n\n int64_t next_aligned_sector = (sector_num + n);\n\n next_aligned_sector -= next_aligned_sector % cluster_sectors;\n\n if (sector_num + n > next_aligned_sector) {\n\n n = next_aligned_sector - sector_num;\n\n }\n\n }\n\n\n\n n = MIN(n, bs_sectors[bs_i] - (sector_num - bs_offset));\n\n\n\n sectors_read += n;\n\n if (count_allocated_sectors) {\n\n sector_num += n;\n\n continue;\n\n }\n\n\n\n n1 = n;\n\n ret = bdrv_read(bs[bs_i], sector_num - bs_offset, buf, n);\n\n if (ret < 0) {\n\n error_report(\"error while reading sector %\" PRId64 \": %s\",\n\n sector_num - bs_offset, strerror(-ret));\n\n goto out;\n\n }\n\n /* NOTE: at the same time we convert, we do not write zero\n\n sectors to have a chance to compress the image. Ideally, we\n\n should add a specific call to have the info to go faster */\n\n buf1 = buf;\n\n while (n > 0) {\n\n if (!has_zero_init ||\n\n is_allocated_sectors_min(buf1, n, &n1, min_sparse)) {\n\n ret = bdrv_write(out_bs, sector_num, buf1, n1);\n\n if (ret < 0) {\n\n error_report(\"error while writing sector %\" PRId64\n\n \": %s\", sector_num, strerror(-ret));\n\n goto out;\n\n }\n\n }\n\n sector_num += n1;\n\n n -= n1;\n\n buf1 += n1 * 512;\n\n }\n\n qemu_progress_print(100.0 * sectors_read / sectors_to_read, 0);\n\n }\n\n }\n\nout:\n\n if (!ret) {\n\n qemu_progress_print(100, 0);\n\n }\n\n qemu_progress_end();\n\n qemu_opts_del(opts);\n\n qemu_opts_free(create_opts);\n\n qemu_vfree(buf);\n\n if (sn_opts) {\n\n qemu_opts_del(sn_opts);\n\n }\n\n if (out_bs) {\n\n bdrv_unref(out_bs);\n\n }\n\n if (bs) {\n\n for (bs_i = 0; bs_i < bs_n; bs_i++) {\n\n if (bs[bs_i]) {\n\n bdrv_unref(bs[bs_i]);\n\n }\n\n }\n\n g_free(bs);\n\n }\n\n g_free(bs_sectors);\n\nfail_getopt:\n\n g_free(options);\n\n\n\n if (ret) {\n\n return 1;\n\n }\n\n return 0;\n\n}\n", + "output": "0", + "index": 16899 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int ff_h264_decode_seq_parameter_set(H264Context *h){\n\n MpegEncContext * const s = &h->s;\n\n int profile_idc, level_idc, constraint_set_flags = 0;\n\n unsigned int sps_id;\n\n int i, log2_max_frame_num_minus4;\n\n SPS *sps;\n\n\n\n profile_idc= get_bits(&s->gb, 8);\n\n constraint_set_flags |= get_bits1(&s->gb) << 0; //constraint_set0_flag\n\n constraint_set_flags |= get_bits1(&s->gb) << 1; //constraint_set1_flag\n\n constraint_set_flags |= get_bits1(&s->gb) << 2; //constraint_set2_flag\n\n constraint_set_flags |= get_bits1(&s->gb) << 3; //constraint_set3_flag\n\n get_bits(&s->gb, 4); // reserved\n\n level_idc= get_bits(&s->gb, 8);\n\n sps_id= get_ue_golomb_31(&s->gb);\n\n\n\n if(sps_id >= MAX_SPS_COUNT) {\n\n av_log(h->s.avctx, AV_LOG_ERROR, \"sps_id (%d) out of range\\n\", sps_id);\n\n return -1;\n\n }\n\n sps= av_mallocz(sizeof(SPS));\n\n if(sps == NULL)\n\n return -1;\n\n\n\n sps->time_offset_length = 24;\n\n sps->profile_idc= profile_idc;\n\n sps->constraint_set_flags = constraint_set_flags;\n\n sps->level_idc= level_idc;\n\n\n\n memset(sps->scaling_matrix4, 16, sizeof(sps->scaling_matrix4));\n\n memset(sps->scaling_matrix8, 16, sizeof(sps->scaling_matrix8));\n\n sps->scaling_matrix_present = 0;\n\n\n\n if(sps->profile_idc >= 100){ //high profile\n\n sps->chroma_format_idc= get_ue_golomb_31(&s->gb);\n\n if(sps->chroma_format_idc > 3) {\n\n av_log(h->s.avctx, AV_LOG_ERROR, \"chroma_format_idc (%u) out of range\\n\", sps->chroma_format_idc);\n\n goto fail;\n\n } else if(sps->chroma_format_idc == 3) {\n\n sps->residual_color_transform_flag = get_bits1(&s->gb);\n\n }\n\n sps->bit_depth_luma = get_ue_golomb(&s->gb) + 8;\n\n sps->bit_depth_chroma = get_ue_golomb(&s->gb) + 8;\n\n sps->transform_bypass = get_bits1(&s->gb);\n\n decode_scaling_matrices(h, sps, NULL, 1, sps->scaling_matrix4, sps->scaling_matrix8);\n\n }else{\n\n sps->chroma_format_idc= 1;\n\n sps->bit_depth_luma = 8;\n\n sps->bit_depth_chroma = 8;\n\n }\n\n\n\n log2_max_frame_num_minus4 = get_ue_golomb(&s->gb);\n\n if (log2_max_frame_num_minus4 < MIN_LOG2_MAX_FRAME_NUM - 4 ||\n\n log2_max_frame_num_minus4 > MAX_LOG2_MAX_FRAME_NUM - 4) {\n\n av_log(h->s.avctx, AV_LOG_ERROR,\n\n \"log2_max_frame_num_minus4 out of range (0-12): %d\\n\",\n\n log2_max_frame_num_minus4);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n sps->log2_max_frame_num = log2_max_frame_num_minus4 + 4;\n\n\n\n sps->poc_type= get_ue_golomb_31(&s->gb);\n\n\n\n if(sps->poc_type == 0){ //FIXME #define\n\n sps->log2_max_poc_lsb= get_ue_golomb(&s->gb) + 4;\n\n } else if(sps->poc_type == 1){//FIXME #define\n\n sps->delta_pic_order_always_zero_flag= get_bits1(&s->gb);\n\n sps->offset_for_non_ref_pic= get_se_golomb(&s->gb);\n\n sps->offset_for_top_to_bottom_field= get_se_golomb(&s->gb);\n\n sps->poc_cycle_length = get_ue_golomb(&s->gb);\n\n\n\n if((unsigned)sps->poc_cycle_length >= FF_ARRAY_ELEMS(sps->offset_for_ref_frame)){\n\n av_log(h->s.avctx, AV_LOG_ERROR, \"poc_cycle_length overflow %u\\n\", sps->poc_cycle_length);\n\n goto fail;\n\n }\n\n\n\n for(i=0; ipoc_cycle_length; i++)\n\n sps->offset_for_ref_frame[i]= get_se_golomb(&s->gb);\n\n }else if(sps->poc_type != 2){\n\n av_log(h->s.avctx, AV_LOG_ERROR, \"illegal POC type %d\\n\", sps->poc_type);\n\n goto fail;\n\n }\n\n\n\n sps->ref_frame_count= get_ue_golomb_31(&s->gb);\n\n if(sps->ref_frame_count > MAX_PICTURE_COUNT-2 || sps->ref_frame_count >= 32U){\n\n av_log(h->s.avctx, AV_LOG_ERROR, \"too many reference frames\\n\");\n\n goto fail;\n\n }\n\n sps->gaps_in_frame_num_allowed_flag= get_bits1(&s->gb);\n\n sps->mb_width = get_ue_golomb(&s->gb) + 1;\n\n sps->mb_height= get_ue_golomb(&s->gb) + 1;\n\n if((unsigned)sps->mb_width >= INT_MAX/16 || (unsigned)sps->mb_height >= INT_MAX/16 ||\n\n av_image_check_size(16*sps->mb_width, 16*sps->mb_height, 0, h->s.avctx)){\n\n av_log(h->s.avctx, AV_LOG_ERROR, \"mb_width/height overflow\\n\");\n\n goto fail;\n\n }\n\n\n\n sps->frame_mbs_only_flag= get_bits1(&s->gb);\n\n if(!sps->frame_mbs_only_flag)\n\n sps->mb_aff= get_bits1(&s->gb);\n\n else\n\n sps->mb_aff= 0;\n\n\n\n sps->direct_8x8_inference_flag= get_bits1(&s->gb);\n\n if(!sps->frame_mbs_only_flag && !sps->direct_8x8_inference_flag){\n\n av_log(h->s.avctx, AV_LOG_ERROR, \"This stream was generated by a broken encoder, invalid 8x8 inference\\n\");\n\n goto fail;\n\n }\n\n\n\n#ifndef ALLOW_INTERLACE\n\n if(sps->mb_aff)\n\n av_log(h->s.avctx, AV_LOG_ERROR, \"MBAFF support not included; enable it at compile-time.\\n\");\n\n#endif\n\n sps->crop= get_bits1(&s->gb);\n\n if(sps->crop){\n\n int crop_vertical_limit = sps->chroma_format_idc & 2 ? 16 : 8;\n\n int crop_horizontal_limit = sps->chroma_format_idc == 3 ? 16 : 8;\n\n sps->crop_left = get_ue_golomb(&s->gb);\n\n sps->crop_right = get_ue_golomb(&s->gb);\n\n sps->crop_top = get_ue_golomb(&s->gb);\n\n sps->crop_bottom= get_ue_golomb(&s->gb);\n\n if(sps->crop_left || sps->crop_top){\n\n av_log(h->s.avctx, AV_LOG_ERROR, \"insane cropping not completely supported, this could look slightly wrong ...\\n\");\n\n }\n\n if(sps->crop_right >= crop_horizontal_limit || sps->crop_bottom >= crop_vertical_limit){\n\n av_log(h->s.avctx, AV_LOG_ERROR, \"brainfart cropping not supported, this could look slightly wrong ...\\n\");\n\n }\n\n }else{\n\n sps->crop_left =\n\n sps->crop_right =\n\n sps->crop_top =\n\n sps->crop_bottom= 0;\n\n }\n\n\n\n sps->vui_parameters_present_flag= get_bits1(&s->gb);\n\n if( sps->vui_parameters_present_flag )\n\n if (decode_vui_parameters(h, sps) < 0)\n\n goto fail;\n\n\n\n if(!sps->sar.den)\n\n sps->sar.den= 1;\n\n\n\n if(s->avctx->debug&FF_DEBUG_PICT_INFO){\n\n static const char csp[4][5] = { \"Gray\", \"420\", \"422\", \"444\" };\n\n av_log(h->s.avctx, AV_LOG_DEBUG, \"sps:%u profile:%d/%d poc:%d ref:%d %dx%d %s %s crop:%d/%d/%d/%d %s %s %d/%d\\n\",\n\n sps_id, sps->profile_idc, sps->level_idc,\n\n sps->poc_type,\n\n sps->ref_frame_count,\n\n sps->mb_width, sps->mb_height,\n\n sps->frame_mbs_only_flag ? \"FRM\" : (sps->mb_aff ? \"MB-AFF\" : \"PIC-AFF\"),\n\n sps->direct_8x8_inference_flag ? \"8B8\" : \"\",\n\n sps->crop_left, sps->crop_right,\n\n sps->crop_top, sps->crop_bottom,\n\n sps->vui_parameters_present_flag ? \"VUI\" : \"\",\n\n csp[sps->chroma_format_idc],\n\n sps->timing_info_present_flag ? sps->num_units_in_tick : 0,\n\n sps->timing_info_present_flag ? sps->time_scale : 0\n\n );\n\n }\n\n\n\n av_free(h->sps_buffers[sps_id]);\n\n h->sps_buffers[sps_id]= sps;\n\n h->sps = *sps;\n\n return 0;\n\nfail:\n\n av_free(sps);\n\n return -1;\n\n}\n", + "output": "1", + "index": 16928 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void gt64120_writel (void *opaque, target_phys_addr_t addr,\n\n uint32_t val)\n\n{\n\n GT64120State *s = opaque;\n\n uint32_t saddr;\n\n\n\n#ifdef TARGET_WORDS_BIGENDIAN\n\n val = bswap32(val);\n\n#endif\n\n\n\n saddr = (addr & 0xfff) >> 2;\n\n switch (saddr) {\n\n\n\n /* CPU Configuration */\n\n case GT_CPU:\n\n s->regs[GT_CPU] = val;\n\n break;\n\n case GT_MULTI:\n\n\t/* Read-only register as only one GT64xxx is present on the CPU bus */\n\n break;\n\n\n\n /* CPU Address Decode */\n\n case GT_PCI0IOLD:\n\n s->regs[GT_PCI0IOLD] = val & 0x00007fff;\n\n s->regs[GT_PCI0IOREMAP] = val & 0x000007ff;\n\n gt64120_pci_mapping(s);\n\n break;\n\n case GT_PCI0M0LD:\n\n s->regs[GT_PCI0M0LD] = val & 0x00007fff;\n\n s->regs[GT_PCI0M0REMAP] = val & 0x000007ff;\n\n break;\n\n case GT_PCI0M1LD:\n\n s->regs[GT_PCI0M1LD] = val & 0x00007fff;\n\n s->regs[GT_PCI0M1REMAP] = val & 0x000007ff;\n\n break;\n\n case GT_PCI1IOLD:\n\n s->regs[GT_PCI1IOLD] = val & 0x00007fff;\n\n s->regs[GT_PCI1IOREMAP] = val & 0x000007ff;\n\n break;\n\n case GT_PCI1M0LD:\n\n s->regs[GT_PCI1M0LD] = val & 0x00007fff;\n\n s->regs[GT_PCI1M0REMAP] = val & 0x000007ff;\n\n break;\n\n case GT_PCI1M1LD:\n\n s->regs[GT_PCI1M1LD] = val & 0x00007fff;\n\n s->regs[GT_PCI1M1REMAP] = val & 0x000007ff;\n\n break;\n\n case GT_PCI0IOHD:\n\n s->regs[saddr] = val & 0x0000007f;\n\n gt64120_pci_mapping(s);\n\n break;\n\n case GT_PCI0M0HD:\n\n case GT_PCI0M1HD:\n\n case GT_PCI1IOHD:\n\n case GT_PCI1M0HD:\n\n case GT_PCI1M1HD:\n\n s->regs[saddr] = val & 0x0000007f;\n\n break;\n\n case GT_ISD:\n\n s->regs[saddr] = val & 0x00007fff;\n\n gt64120_isd_mapping(s);\n\n break;\n\n\n\n case GT_PCI0IOREMAP:\n\n case GT_PCI0M0REMAP:\n\n case GT_PCI0M1REMAP:\n\n case GT_PCI1IOREMAP:\n\n case GT_PCI1M0REMAP:\n\n case GT_PCI1M1REMAP:\n\n s->regs[saddr] = val & 0x000007ff;\n\n break;\n\n\n\n /* CPU Error Report */\n\n case GT_CPUERR_ADDRLO:\n\n case GT_CPUERR_ADDRHI:\n\n case GT_CPUERR_DATALO:\n\n case GT_CPUERR_DATAHI:\n\n case GT_CPUERR_PARITY:\n\n\t/* Read-only registers, do nothing */\n\n break;\n\n\n\n /* CPU Sync Barrier */\n\n case GT_PCI0SYNC:\n\n case GT_PCI1SYNC:\n\n\t/* Read-only registers, do nothing */\n\n break;\n\n\n\n /* SDRAM and Device Address Decode */\n\n case GT_SCS0LD:\n\n case GT_SCS0HD:\n\n case GT_SCS1LD:\n\n case GT_SCS1HD:\n\n case GT_SCS2LD:\n\n case GT_SCS2HD:\n\n case GT_SCS3LD:\n\n case GT_SCS3HD:\n\n case GT_CS0LD:\n\n case GT_CS0HD:\n\n case GT_CS1LD:\n\n case GT_CS1HD:\n\n case GT_CS2LD:\n\n case GT_CS2HD:\n\n case GT_CS3LD:\n\n case GT_CS3HD:\n\n case GT_BOOTLD:\n\n case GT_BOOTHD:\n\n case GT_ADERR:\n\n /* SDRAM Configuration */\n\n case GT_SDRAM_CFG:\n\n case GT_SDRAM_OPMODE:\n\n case GT_SDRAM_BM:\n\n case GT_SDRAM_ADDRDECODE:\n\n /* Accept and ignore SDRAM interleave configuration */\n\n s->regs[saddr] = val;\n\n break;\n\n\n\n /* Device Parameters */\n\n case GT_DEV_B0:\n\n case GT_DEV_B1:\n\n case GT_DEV_B2:\n\n case GT_DEV_B3:\n\n case GT_DEV_BOOT:\n\n /* Not implemented */\n\n dprintf (\"Unimplemented device register offset 0x%x\\n\", saddr << 2);\n\n break;\n\n\n\n /* ECC */\n\n case GT_ECC_ERRDATALO:\n\n case GT_ECC_ERRDATAHI:\n\n case GT_ECC_MEM:\n\n case GT_ECC_CALC:\n\n case GT_ECC_ERRADDR:\n\n /* Read-only registers, do nothing */\n\n break;\n\n\n\n /* DMA Record */\n\n case GT_DMA0_CNT:\n\n case GT_DMA1_CNT:\n\n case GT_DMA2_CNT:\n\n case GT_DMA3_CNT:\n\n case GT_DMA0_SA:\n\n case GT_DMA1_SA:\n\n case GT_DMA2_SA:\n\n case GT_DMA3_SA:\n\n case GT_DMA0_DA:\n\n case GT_DMA1_DA:\n\n case GT_DMA2_DA:\n\n case GT_DMA3_DA:\n\n case GT_DMA0_NEXT:\n\n case GT_DMA1_NEXT:\n\n case GT_DMA2_NEXT:\n\n case GT_DMA3_NEXT:\n\n case GT_DMA0_CUR:\n\n case GT_DMA1_CUR:\n\n case GT_DMA2_CUR:\n\n case GT_DMA3_CUR:\n\n /* Not implemented */\n\n dprintf (\"Unimplemented DMA register offset 0x%x\\n\", saddr << 2);\n\n break;\n\n\n\n /* DMA Channel Control */\n\n case GT_DMA0_CTRL:\n\n case GT_DMA1_CTRL:\n\n case GT_DMA2_CTRL:\n\n case GT_DMA3_CTRL:\n\n /* Not implemented */\n\n dprintf (\"Unimplemented DMA register offset 0x%x\\n\", saddr << 2);\n\n break;\n\n\n\n /* DMA Arbiter */\n\n case GT_DMA_ARB:\n\n /* Not implemented */\n\n dprintf (\"Unimplemented DMA register offset 0x%x\\n\", saddr << 2);\n\n break;\n\n\n\n /* Timer/Counter */\n\n case GT_TC0:\n\n case GT_TC1:\n\n case GT_TC2:\n\n case GT_TC3:\n\n case GT_TC_CONTROL:\n\n /* Not implemented */\n\n dprintf (\"Unimplemented timer register offset 0x%x\\n\", saddr << 2);\n\n break;\n\n\n\n /* PCI Internal */\n\n case GT_PCI0_CMD:\n\n case GT_PCI1_CMD:\n\n s->regs[saddr] = val & 0x0401fc0f;\n\n break;\n\n case GT_PCI0_TOR:\n\n case GT_PCI0_BS_SCS10:\n\n case GT_PCI0_BS_SCS32:\n\n case GT_PCI0_BS_CS20:\n\n case GT_PCI0_BS_CS3BT:\n\n case GT_PCI1_IACK:\n\n case GT_PCI0_IACK:\n\n case GT_PCI0_BARE:\n\n case GT_PCI0_PREFMBR:\n\n case GT_PCI0_SCS10_BAR:\n\n case GT_PCI0_SCS32_BAR:\n\n case GT_PCI0_CS20_BAR:\n\n case GT_PCI0_CS3BT_BAR:\n\n case GT_PCI0_SSCS10_BAR:\n\n case GT_PCI0_SSCS32_BAR:\n\n case GT_PCI0_SCS3BT_BAR:\n\n case GT_PCI1_TOR:\n\n case GT_PCI1_BS_SCS10:\n\n case GT_PCI1_BS_SCS32:\n\n case GT_PCI1_BS_CS20:\n\n case GT_PCI1_BS_CS3BT:\n\n case GT_PCI1_BARE:\n\n case GT_PCI1_PREFMBR:\n\n case GT_PCI1_SCS10_BAR:\n\n case GT_PCI1_SCS32_BAR:\n\n case GT_PCI1_CS20_BAR:\n\n case GT_PCI1_CS3BT_BAR:\n\n case GT_PCI1_SSCS10_BAR:\n\n case GT_PCI1_SSCS32_BAR:\n\n case GT_PCI1_SCS3BT_BAR:\n\n case GT_PCI1_CFGADDR:\n\n case GT_PCI1_CFGDATA:\n\n /* not implemented */\n\n break;\n\n case GT_PCI0_CFGADDR:\n\n s->pci->config_reg = val & 0x80fffffc;\n\n break;\n\n case GT_PCI0_CFGDATA:\n\n if (s->pci->config_reg & (1u << 31))\n\n pci_host_data_writel(s->pci, 0, val);\n\n break;\n\n\n\n /* Interrupts */\n\n case GT_INTRCAUSE:\n\n /* not really implemented */\n\n s->regs[saddr] = ~(~(s->regs[saddr]) | ~(val & 0xfffffffe));\n\n s->regs[saddr] |= !!(s->regs[saddr] & 0xfffffffe);\n\n dprintf(\"INTRCAUSE %x\\n\", val);\n\n break;\n\n case GT_INTRMASK:\n\n s->regs[saddr] = val & 0x3c3ffffe;\n\n dprintf(\"INTRMASK %x\\n\", val);\n\n break;\n\n case GT_PCI0_ICMASK:\n\n s->regs[saddr] = val & 0x03fffffe;\n\n dprintf(\"ICMASK %x\\n\", val);\n\n break;\n\n case GT_PCI0_SERR0MASK:\n\n s->regs[saddr] = val & 0x0000003f;\n\n dprintf(\"SERR0MASK %x\\n\", val);\n\n break;\n\n\n\n /* Reserved when only PCI_0 is configured. */\n\n case GT_HINTRCAUSE:\n\n case GT_CPU_INTSEL:\n\n case GT_PCI0_INTSEL:\n\n case GT_HINTRMASK:\n\n case GT_PCI0_HICMASK:\n\n case GT_PCI1_SERR1MASK:\n\n /* not implemented */\n\n break;\n\n\n\n /* SDRAM Parameters */\n\n case GT_SDRAM_B0:\n\n case GT_SDRAM_B1:\n\n case GT_SDRAM_B2:\n\n case GT_SDRAM_B3:\n\n /* We don't simulate electrical parameters of the SDRAM.\n\n Accept, but ignore the values. */\n\n s->regs[saddr] = val;\n\n break;\n\n\n\n default:\n\n dprintf (\"Bad register offset 0x%x\\n\", (int)addr);\n\n break;\n\n }\n\n}\n", + "output": "0", + "index": 16086 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int tiff_decode_tag(TiffContext *s, AVFrame *frame)\n\n{\n\n unsigned tag, type, count, off, value = 0, value2 = 0;\n\n int i, start;\n\n int pos;\n\n int ret;\n\n double *dp;\n\n\n\n ret = ff_tread_tag(&s->gb, s->le, &tag, &type, &count, &start);\n\n if (ret < 0) {\n\n goto end;\n\n\n\n\n off = bytestream2_tell(&s->gb);\n\n if (count == 1) {\n\n switch (type) {\n\n case TIFF_BYTE:\n\n case TIFF_SHORT:\n\n case TIFF_LONG:\n\n value = ff_tget(&s->gb, type, s->le);\n\n break;\n\n case TIFF_RATIONAL:\n\n value = ff_tget(&s->gb, TIFF_LONG, s->le);\n\n value2 = ff_tget(&s->gb, TIFF_LONG, s->le);\n\n break;\n\n case TIFF_STRING:\n\n if (count <= 4) {\n\n break;\n\n\n default:\n\n value = UINT_MAX;\n\n\n\n\n\n switch (tag) {\n\n case TIFF_WIDTH:\n\n s->width = value;\n\n break;\n\n case TIFF_HEIGHT:\n\n s->height = value;\n\n break;\n\n case TIFF_BPP:\n\n if (count > 4U) {\n\n\n \"This format is not supported (bpp=%d, %d components)\\n\",\n\n value, count);\n\n\n\n s->bppcount = count;\n\n if (count == 1)\n\n s->bpp = value;\n\n else {\n\n switch (type) {\n\n case TIFF_BYTE:\n\n case TIFF_SHORT:\n\n case TIFF_LONG:\n\n s->bpp = 0;\n\n if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count)\n\n\n for (i = 0; i < count; i++)\n\n s->bpp += ff_tget(&s->gb, type, s->le);\n\n break;\n\n default:\n\n s->bpp = -1;\n\n\n\n break;\n\n case TIFF_SAMPLES_PER_PIXEL:\n\n if (count != 1) {\n\n\n \"Samples per pixel requires a single value, many provided\\n\");\n\n\n\n if (value > 4U) {\n\n\n \"Samples per pixel %d is too large\\n\", value);\n\n\n\n if (s->bppcount == 1)\n\n s->bpp *= value;\n\n s->bppcount = value;\n\n break;\n\n case TIFF_COMPR:\n\n s->compr = value;\n\n av_log(s->avctx, AV_LOG_DEBUG, \"compression: %d\\n\", s->compr);\n\n s->predictor = 0;\n\n switch (s->compr) {\n\n case TIFF_RAW:\n\n case TIFF_PACKBITS:\n\n case TIFF_LZW:\n\n case TIFF_CCITT_RLE:\n\n break;\n\n case TIFF_G3:\n\n case TIFF_G4:\n\n s->fax_opts = 0;\n\n break;\n\n case TIFF_DEFLATE:\n\n case TIFF_ADOBE_DEFLATE:\n\n#if CONFIG_ZLIB\n\n break;\n\n#else\n\n av_log(s->avctx, AV_LOG_ERROR, \"Deflate: ZLib not compiled in\\n\");\n\n return AVERROR(ENOSYS);\n\n#endif\n\n case TIFF_JPEG:\n\n case TIFF_NEWJPEG:\n\n avpriv_report_missing_feature(s->avctx, \"JPEG compression\");\n\n return AVERROR_PATCHWELCOME;\n\n case TIFF_LZMA:\n\n#if CONFIG_LZMA\n\n break;\n\n#else\n\n av_log(s->avctx, AV_LOG_ERROR, \"LZMA not compiled in\\n\");\n\n return AVERROR(ENOSYS);\n\n#endif\n\n default:\n\n av_log(s->avctx, AV_LOG_ERROR, \"Unknown compression method %i\\n\",\n\n s->compr);\n\n\n\n break;\n\n case TIFF_ROWSPERSTRIP:\n\n if (!value || (type == TIFF_LONG && value == UINT_MAX))\n\n value = s->height;\n\n s->rps = FFMIN(value, s->height);\n\n break;\n\n case TIFF_STRIP_OFFS:\n\n if (count == 1) {\n\n\n\n\n\n\n s->strippos = 0;\n\n s->stripoff = value;\n\n } else\n\n s->strippos = off;\n\n s->strips = count;\n\n if (s->strips == 1)\n\n s->rps = s->height;\n\n s->sot = type;\n\n break;\n\n case TIFF_STRIP_SIZE:\n\n if (count == 1) {\n\n\n\n \"stripsize %u too large\\n\", value);\n\n\n\n s->stripsizesoff = 0;\n\n s->stripsize = value;\n\n s->strips = 1;\n\n } else {\n\n s->stripsizesoff = off;\n\n\n s->strips = count;\n\n s->sstype = type;\n\n break;\n\n case TIFF_XRES:\n\n case TIFF_YRES:\n\n set_sar(s, tag, value, value2);\n\n break;\n\n case TIFF_TILE_BYTE_COUNTS:\n\n case TIFF_TILE_LENGTH:\n\n case TIFF_TILE_OFFSETS:\n\n case TIFF_TILE_WIDTH:\n\n av_log(s->avctx, AV_LOG_ERROR, \"Tiled images are not supported\\n\");\n\n return AVERROR_PATCHWELCOME;\n\n break;\n\n case TIFF_PREDICTOR:\n\n s->predictor = value;\n\n break;\n\n case TIFF_PHOTOMETRIC:\n\n switch (value) {\n\n case TIFF_PHOTOMETRIC_WHITE_IS_ZERO:\n\n case TIFF_PHOTOMETRIC_BLACK_IS_ZERO:\n\n case TIFF_PHOTOMETRIC_RGB:\n\n case TIFF_PHOTOMETRIC_PALETTE:\n\n case TIFF_PHOTOMETRIC_YCBCR:\n\n s->photometric = value;\n\n break;\n\n case TIFF_PHOTOMETRIC_ALPHA_MASK:\n\n case TIFF_PHOTOMETRIC_SEPARATED:\n\n case TIFF_PHOTOMETRIC_CIE_LAB:\n\n case TIFF_PHOTOMETRIC_ICC_LAB:\n\n case TIFF_PHOTOMETRIC_ITU_LAB:\n\n case TIFF_PHOTOMETRIC_CFA:\n\n case TIFF_PHOTOMETRIC_LOG_L:\n\n case TIFF_PHOTOMETRIC_LOG_LUV:\n\n case TIFF_PHOTOMETRIC_LINEAR_RAW:\n\n avpriv_report_missing_feature(s->avctx,\n\n \"PhotometricInterpretation 0x%04X\",\n\n value);\n\n return AVERROR_PATCHWELCOME;\n\n default:\n\n av_log(s->avctx, AV_LOG_ERROR, \"PhotometricInterpretation %u is \"\n\n \"unknown\\n\", value);\n\n\n\n break;\n\n case TIFF_FILL_ORDER:\n\n if (value < 1 || value > 2) {\n\n\n \"Unknown FillOrder value %d, trying default one\\n\", value);\n\n value = 1;\n\n\n s->fill_order = value - 1;\n\n break;\n\n case TIFF_PAL: {\n\n GetByteContext pal_gb[3];\n\n off = type_sizes[type];\n\n if (count / 3 > 256 ||\n\n bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3)\n\n\n\n\n pal_gb[0] = pal_gb[1] = pal_gb[2] = s->gb;\n\n bytestream2_skip(&pal_gb[1], count / 3 * off);\n\n bytestream2_skip(&pal_gb[2], count / 3 * off * 2);\n\n\n\n off = (type_sizes[type] - 1) << 3;\n\n if (off > 31U) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"palette shift %d is out of range\\n\", off);\n\n\n\n\n\n for (i = 0; i < count / 3; i++) {\n\n uint32_t p = 0xFF000000;\n\n p |= (ff_tget(&pal_gb[0], type, s->le) >> off) << 16;\n\n p |= (ff_tget(&pal_gb[1], type, s->le) >> off) << 8;\n\n p |= ff_tget(&pal_gb[2], type, s->le) >> off;\n\n s->palette[i] = p;\n\n\n s->palette_is_set = 1;\n\n break;\n\n\n case TIFF_PLANAR:\n\n s->planar = value == 2;\n\n break;\n\n case TIFF_YCBCR_SUBSAMPLING:\n\n if (count != 2) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"subsample count invalid\\n\");\n\n\n\n for (i = 0; i < count; i++) {\n\n s->subsampling[i] = ff_tget(&s->gb, type, s->le);\n\n if (s->subsampling[i] <= 0) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"subsampling %d is invalid\\n\", s->subsampling[i]);\n\n\n\n\n break;\n\n case TIFF_T4OPTIONS:\n\n if (s->compr == TIFF_G3)\n\n s->fax_opts = value;\n\n break;\n\n case TIFF_T6OPTIONS:\n\n if (s->compr == TIFF_G4)\n\n s->fax_opts = value;\n\n break;\n\n#define ADD_METADATA(count, name, sep)\\\n\n if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\\\n\n av_log(s->avctx, AV_LOG_ERROR, \"Error allocating temporary buffer\\n\");\\\n\n goto end;\\\n\n\n case TIFF_MODEL_PIXEL_SCALE:\n\n ADD_METADATA(count, \"ModelPixelScaleTag\", NULL);\n\n break;\n\n case TIFF_MODEL_TRANSFORMATION:\n\n ADD_METADATA(count, \"ModelTransformationTag\", NULL);\n\n break;\n\n case TIFF_MODEL_TIEPOINT:\n\n ADD_METADATA(count, \"ModelTiepointTag\", NULL);\n\n break;\n\n case TIFF_GEO_KEY_DIRECTORY:\n\n if (s->geotag_count) {\n\n avpriv_request_sample(s->avctx, \"Multiple geo key directories\\n\");\n\n\n\n ADD_METADATA(1, \"GeoTIFF_Version\", NULL);\n\n ADD_METADATA(2, \"GeoTIFF_Key_Revision\", \".\");\n\n s->geotag_count = ff_tget_short(&s->gb, s->le);\n\n if (s->geotag_count > count / 4 - 1) {\n\n s->geotag_count = count / 4 - 1;\n\n av_log(s->avctx, AV_LOG_WARNING, \"GeoTIFF key directory buffer shorter than specified\\n\");\n\n\n if (bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4) {\n\n s->geotag_count = 0;\n\n return -1;\n\n\n s->geotags = av_mallocz_array(s->geotag_count, sizeof(TiffGeoTag));\n\n if (!s->geotags) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"Error allocating temporary buffer\\n\");\n\n s->geotag_count = 0;\n\n goto end;\n\n\n for (i = 0; i < s->geotag_count; i++) {\n\n s->geotags[i].key = ff_tget_short(&s->gb, s->le);\n\n s->geotags[i].type = ff_tget_short(&s->gb, s->le);\n\n s->geotags[i].count = ff_tget_short(&s->gb, s->le);\n\n\n\n if (!s->geotags[i].type)\n\n s->geotags[i].val = get_geokey_val(s->geotags[i].key, ff_tget_short(&s->gb, s->le));\n\n else\n\n s->geotags[i].offset = ff_tget_short(&s->gb, s->le);\n\n\n break;\n\n case TIFF_GEO_DOUBLE_PARAMS:\n\n if (count >= INT_MAX / sizeof(int64_t))\n\n\n if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))\n\n\n dp = av_malloc_array(count, sizeof(double));\n\n if (!dp) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"Error allocating temporary buffer\\n\");\n\n goto end;\n\n\n for (i = 0; i < count; i++)\n\n dp[i] = ff_tget_double(&s->gb, s->le);\n\n for (i = 0; i < s->geotag_count; i++) {\n\n if (s->geotags[i].type == TIFF_GEO_DOUBLE_PARAMS) {\n\n if (s->geotags[i].count == 0\n\n || s->geotags[i].offset + s->geotags[i].count > count) {\n\n av_log(s->avctx, AV_LOG_WARNING, \"Invalid GeoTIFF key %d\\n\", s->geotags[i].key);\n\n } else {\n\n char *ap = doubles2str(&dp[s->geotags[i].offset], s->geotags[i].count, \", \");\n\n if (!ap) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"Error allocating temporary buffer\\n\");\n\n av_freep(&dp);\n\n return AVERROR(ENOMEM);\n\n\n s->geotags[i].val = ap;\n\n\n\n\n av_freep(&dp);\n\n break;\n\n case TIFF_GEO_ASCII_PARAMS:\n\n pos = bytestream2_tell(&s->gb);\n\n for (i = 0; i < s->geotag_count; i++) {\n\n if (s->geotags[i].type == TIFF_GEO_ASCII_PARAMS) {\n\n if (s->geotags[i].count == 0\n\n || s->geotags[i].offset + s->geotags[i].count > count) {\n\n av_log(s->avctx, AV_LOG_WARNING, \"Invalid GeoTIFF key %d\\n\", s->geotags[i].key);\n\n } else {\n\n char *ap;\n\n\n\n bytestream2_seek(&s->gb, pos + s->geotags[i].offset, SEEK_SET);\n\n if (bytestream2_get_bytes_left(&s->gb) < s->geotags[i].count)\n\n\n ap = av_malloc(s->geotags[i].count);\n\n if (!ap) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"Error allocating temporary buffer\\n\");\n\n return AVERROR(ENOMEM);\n\n\n bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count);\n\n ap[s->geotags[i].count - 1] = '\\0'; //replace the \"|\" delimiter with a 0 byte\n\n s->geotags[i].val = ap;\n\n\n\n\n break;\n\n case TIFF_ARTIST:\n\n ADD_METADATA(count, \"artist\", NULL);\n\n break;\n\n case TIFF_COPYRIGHT:\n\n ADD_METADATA(count, \"copyright\", NULL);\n\n break;\n\n case TIFF_DATE:\n\n ADD_METADATA(count, \"date\", NULL);\n\n break;\n\n case TIFF_DOCUMENT_NAME:\n\n ADD_METADATA(count, \"document_name\", NULL);\n\n break;\n\n case TIFF_HOST_COMPUTER:\n\n ADD_METADATA(count, \"computer\", NULL);\n\n break;\n\n case TIFF_IMAGE_DESCRIPTION:\n\n ADD_METADATA(count, \"description\", NULL);\n\n break;\n\n case TIFF_MAKE:\n\n ADD_METADATA(count, \"make\", NULL);\n\n break;\n\n case TIFF_MODEL:\n\n ADD_METADATA(count, \"model\", NULL);\n\n break;\n\n case TIFF_PAGE_NAME:\n\n ADD_METADATA(count, \"page_name\", NULL);\n\n break;\n\n case TIFF_PAGE_NUMBER:\n\n ADD_METADATA(count, \"page_number\", \" / \");\n\n break;\n\n case TIFF_SOFTWARE_NAME:\n\n ADD_METADATA(count, \"software\", NULL);\n\n break;\n\n default:\n\n if (s->avctx->err_recognition & AV_EF_EXPLODE) {\n\n\n \"Unknown or unsupported tag %d/0X%0X\\n\",\n\n tag, tag);\n\n\n\n\nend:\n\n if (s->bpp > 64U) {\n\n\n \"This format is not supported (bpp=%d, %d components)\\n\",\n\n s->bpp, count);\n\n s->bpp = 0;\n\n\n\n bytestream2_seek(&s->gb, start, SEEK_SET);\n\n return 0;\n", + "output": "1", + "index": 25418 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "build_dsdt(GArray *table_data, GArray *linker,\n\n AcpiPmInfo *pm, AcpiMiscInfo *misc,\n\n PcPciInfo *pci, MachineState *machine)\n\n{\n\n CrsRangeEntry *entry;\n\n Aml *dsdt, *sb_scope, *scope, *dev, *method, *field, *pkg, *crs;\n\n GPtrArray *mem_ranges = g_ptr_array_new_with_free_func(crs_range_free);\n\n GPtrArray *io_ranges = g_ptr_array_new_with_free_func(crs_range_free);\n\n PCMachineState *pcms = PC_MACHINE(machine);\n\n uint32_t nr_mem = machine->ram_slots;\n\n int root_bus_limit = 0xFF;\n\n PCIBus *bus = NULL;\n\n int i;\n\n\n\n dsdt = init_aml_allocator();\n\n\n\n /* Reserve space for header */\n\n acpi_data_push(dsdt->buf, sizeof(AcpiTableHeader));\n\n\n\n build_dbg_aml(dsdt);\n\n if (misc->is_piix4) {\n\n sb_scope = aml_scope(\"_SB\");\n\n dev = aml_device(\"PCI0\");\n\n aml_append(dev, aml_name_decl(\"_HID\", aml_eisaid(\"PNP0A03\")));\n\n aml_append(dev, aml_name_decl(\"_ADR\", aml_int(0)));\n\n aml_append(dev, aml_name_decl(\"_UID\", aml_int(1)));\n\n aml_append(sb_scope, dev);\n\n aml_append(dsdt, sb_scope);\n\n\n\n build_hpet_aml(dsdt);\n\n build_piix4_pm(dsdt);\n\n build_piix4_isa_bridge(dsdt);\n\n build_isa_devices_aml(dsdt);\n\n build_piix4_pci_hotplug(dsdt);\n\n build_piix4_pci0_int(dsdt);\n\n } else {\n\n sb_scope = aml_scope(\"_SB\");\n\n aml_append(sb_scope,\n\n aml_operation_region(\"PCST\", AML_SYSTEM_IO, aml_int(0xae00), 0x0c));\n\n aml_append(sb_scope,\n\n aml_operation_region(\"PCSB\", AML_SYSTEM_IO, aml_int(0xae0c), 0x01));\n\n field = aml_field(\"PCSB\", AML_ANY_ACC, AML_NOLOCK, AML_WRITE_AS_ZEROS);\n\n aml_append(field, aml_named_field(\"PCIB\", 8));\n\n aml_append(sb_scope, field);\n\n aml_append(dsdt, sb_scope);\n\n\n\n sb_scope = aml_scope(\"_SB\");\n\n dev = aml_device(\"PCI0\");\n\n aml_append(dev, aml_name_decl(\"_HID\", aml_eisaid(\"PNP0A08\")));\n\n aml_append(dev, aml_name_decl(\"_CID\", aml_eisaid(\"PNP0A03\")));\n\n aml_append(dev, aml_name_decl(\"_ADR\", aml_int(0)));\n\n aml_append(dev, aml_name_decl(\"_UID\", aml_int(1)));\n\n aml_append(dev, aml_name_decl(\"SUPP\", aml_int(0)));\n\n aml_append(dev, aml_name_decl(\"CTRL\", aml_int(0)));\n\n aml_append(dev, build_q35_osc_method());\n\n aml_append(sb_scope, dev);\n\n aml_append(dsdt, sb_scope);\n\n\n\n build_hpet_aml(dsdt);\n\n build_q35_isa_bridge(dsdt);\n\n build_isa_devices_aml(dsdt);\n\n build_q35_pci0_int(dsdt);\n\n }\n\n\n\n build_cpu_hotplug_aml(dsdt);\n\n build_memory_hotplug_aml(dsdt, nr_mem, pm->mem_hp_io_base,\n\n pm->mem_hp_io_len);\n\n\n\n scope = aml_scope(\"_GPE\");\n\n {\n\n aml_append(scope, aml_name_decl(\"_HID\", aml_string(\"ACPI0006\")));\n\n\n\n aml_append(scope, aml_method(\"_L00\", 0, AML_NOTSERIALIZED));\n\n\n\n if (misc->is_piix4) {\n\n method = aml_method(\"_E01\", 0, AML_NOTSERIALIZED);\n\n aml_append(method,\n\n aml_acquire(aml_name(\"\\\\_SB.PCI0.BLCK\"), 0xFFFF));\n\n aml_append(method, aml_call0(\"\\\\_SB.PCI0.PCNT\"));\n\n aml_append(method, aml_release(aml_name(\"\\\\_SB.PCI0.BLCK\")));\n\n aml_append(scope, method);\n\n } else {\n\n aml_append(scope, aml_method(\"_L01\", 0, AML_NOTSERIALIZED));\n\n }\n\n\n\n method = aml_method(\"_E02\", 0, AML_NOTSERIALIZED);\n\n aml_append(method, aml_call0(\"\\\\_SB.\" CPU_SCAN_METHOD));\n\n aml_append(scope, method);\n\n\n\n method = aml_method(\"_E03\", 0, AML_NOTSERIALIZED);\n\n aml_append(method, aml_call0(MEMORY_HOTPLUG_HANDLER_PATH));\n\n aml_append(scope, method);\n\n\n\n aml_append(scope, aml_method(\"_L04\", 0, AML_NOTSERIALIZED));\n\n aml_append(scope, aml_method(\"_L05\", 0, AML_NOTSERIALIZED));\n\n aml_append(scope, aml_method(\"_L06\", 0, AML_NOTSERIALIZED));\n\n aml_append(scope, aml_method(\"_L07\", 0, AML_NOTSERIALIZED));\n\n aml_append(scope, aml_method(\"_L08\", 0, AML_NOTSERIALIZED));\n\n aml_append(scope, aml_method(\"_L09\", 0, AML_NOTSERIALIZED));\n\n aml_append(scope, aml_method(\"_L0A\", 0, AML_NOTSERIALIZED));\n\n aml_append(scope, aml_method(\"_L0B\", 0, AML_NOTSERIALIZED));\n\n aml_append(scope, aml_method(\"_L0C\", 0, AML_NOTSERIALIZED));\n\n aml_append(scope, aml_method(\"_L0D\", 0, AML_NOTSERIALIZED));\n\n aml_append(scope, aml_method(\"_L0E\", 0, AML_NOTSERIALIZED));\n\n aml_append(scope, aml_method(\"_L0F\", 0, AML_NOTSERIALIZED));\n\n }\n\n aml_append(dsdt, scope);\n\n\n\n bus = PC_MACHINE(machine)->bus;\n\n if (bus) {\n\n QLIST_FOREACH(bus, &bus->child, sibling) {\n\n uint8_t bus_num = pci_bus_num(bus);\n\n uint8_t numa_node = pci_bus_numa_node(bus);\n\n\n\n /* look only for expander root buses */\n\n if (!pci_bus_is_root(bus)) {\n\n continue;\n\n }\n\n\n\n if (bus_num < root_bus_limit) {\n\n root_bus_limit = bus_num - 1;\n\n }\n\n\n\n scope = aml_scope(\"\\\\_SB\");\n\n dev = aml_device(\"PC%.02X\", bus_num);\n\n aml_append(dev, aml_name_decl(\"_UID\", aml_int(bus_num)));\n\n aml_append(dev, aml_name_decl(\"_HID\", aml_eisaid(\"PNP0A03\")));\n\n aml_append(dev, aml_name_decl(\"_BBN\", aml_int(bus_num)));\n\n\n\n if (numa_node != NUMA_NODE_UNASSIGNED) {\n\n aml_append(dev, aml_name_decl(\"_PXM\", aml_int(numa_node)));\n\n }\n\n\n\n aml_append(dev, build_prt(false));\n\n crs = build_crs(PCI_HOST_BRIDGE(BUS(bus)->parent),\n\n io_ranges, mem_ranges);\n\n aml_append(dev, aml_name_decl(\"_CRS\", crs));\n\n aml_append(scope, dev);\n\n aml_append(dsdt, scope);\n\n }\n\n }\n\n\n\n scope = aml_scope(\"\\\\_SB.PCI0\");\n\n /* build PCI0._CRS */\n\n crs = aml_resource_template();\n\n aml_append(crs,\n\n aml_word_bus_number(AML_MIN_FIXED, AML_MAX_FIXED, AML_POS_DECODE,\n\n 0x0000, 0x0, root_bus_limit,\n\n 0x0000, root_bus_limit + 1));\n\n aml_append(crs, aml_io(AML_DECODE16, 0x0CF8, 0x0CF8, 0x01, 0x08));\n\n\n\n aml_append(crs,\n\n aml_word_io(AML_MIN_FIXED, AML_MAX_FIXED,\n\n AML_POS_DECODE, AML_ENTIRE_RANGE,\n\n 0x0000, 0x0000, 0x0CF7, 0x0000, 0x0CF8));\n\n\n\n crs_replace_with_free_ranges(io_ranges, 0x0D00, 0xFFFF);\n\n for (i = 0; i < io_ranges->len; i++) {\n\n entry = g_ptr_array_index(io_ranges, i);\n\n aml_append(crs,\n\n aml_word_io(AML_MIN_FIXED, AML_MAX_FIXED,\n\n AML_POS_DECODE, AML_ENTIRE_RANGE,\n\n 0x0000, entry->base, entry->limit,\n\n 0x0000, entry->limit - entry->base + 1));\n\n }\n\n\n\n aml_append(crs,\n\n aml_dword_memory(AML_POS_DECODE, AML_MIN_FIXED, AML_MAX_FIXED,\n\n AML_CACHEABLE, AML_READ_WRITE,\n\n 0, 0x000A0000, 0x000BFFFF, 0, 0x00020000));\n\n\n\n crs_replace_with_free_ranges(mem_ranges, pci->w32.begin, pci->w32.end - 1);\n\n for (i = 0; i < mem_ranges->len; i++) {\n\n entry = g_ptr_array_index(mem_ranges, i);\n\n aml_append(crs,\n\n aml_dword_memory(AML_POS_DECODE, AML_MIN_FIXED, AML_MAX_FIXED,\n\n AML_NON_CACHEABLE, AML_READ_WRITE,\n\n 0, entry->base, entry->limit,\n\n 0, entry->limit - entry->base + 1));\n\n }\n\n\n\n if (pci->w64.begin) {\n\n aml_append(crs,\n\n aml_qword_memory(AML_POS_DECODE, AML_MIN_FIXED, AML_MAX_FIXED,\n\n AML_CACHEABLE, AML_READ_WRITE,\n\n 0, pci->w64.begin, pci->w64.end - 1, 0,\n\n pci->w64.end - pci->w64.begin));\n\n }\n\n\n\n if (misc->tpm_version != TPM_VERSION_UNSPEC) {\n\n aml_append(crs, aml_memory32_fixed(TPM_TIS_ADDR_BASE,\n\n TPM_TIS_ADDR_SIZE, AML_READ_WRITE));\n\n }\n\n aml_append(scope, aml_name_decl(\"_CRS\", crs));\n\n\n\n /* reserve GPE0 block resources */\n\n dev = aml_device(\"GPE0\");\n\n aml_append(dev, aml_name_decl(\"_HID\", aml_string(\"PNP0A06\")));\n\n aml_append(dev, aml_name_decl(\"_UID\", aml_string(\"GPE0 resources\")));\n\n /* device present, functioning, decoding, not shown in UI */\n\n aml_append(dev, aml_name_decl(\"_STA\", aml_int(0xB)));\n\n crs = aml_resource_template();\n\n aml_append(crs,\n\n aml_io(AML_DECODE16, pm->gpe0_blk, pm->gpe0_blk, 1, pm->gpe0_blk_len)\n\n );\n\n aml_append(dev, aml_name_decl(\"_CRS\", crs));\n\n aml_append(scope, dev);\n\n\n\n g_ptr_array_free(io_ranges, true);\n\n g_ptr_array_free(mem_ranges, true);\n\n\n\n /* reserve PCIHP resources */\n\n if (pm->pcihp_io_len) {\n\n dev = aml_device(\"PHPR\");\n\n aml_append(dev, aml_name_decl(\"_HID\", aml_string(\"PNP0A06\")));\n\n aml_append(dev,\n\n aml_name_decl(\"_UID\", aml_string(\"PCI Hotplug resources\")));\n\n /* device present, functioning, decoding, not shown in UI */\n\n aml_append(dev, aml_name_decl(\"_STA\", aml_int(0xB)));\n\n crs = aml_resource_template();\n\n aml_append(crs,\n\n aml_io(AML_DECODE16, pm->pcihp_io_base, pm->pcihp_io_base, 1,\n\n pm->pcihp_io_len)\n\n );\n\n aml_append(dev, aml_name_decl(\"_CRS\", crs));\n\n aml_append(scope, dev);\n\n }\n\n aml_append(dsdt, scope);\n\n\n\n /* create S3_ / S4_ / S5_ packages if necessary */\n\n scope = aml_scope(\"\\\\\");\n\n if (!pm->s3_disabled) {\n\n pkg = aml_package(4);\n\n aml_append(pkg, aml_int(1)); /* PM1a_CNT.SLP_TYP */\n\n aml_append(pkg, aml_int(1)); /* PM1b_CNT.SLP_TYP, FIXME: not impl. */\n\n aml_append(pkg, aml_int(0)); /* reserved */\n\n aml_append(pkg, aml_int(0)); /* reserved */\n\n aml_append(scope, aml_name_decl(\"_S3\", pkg));\n\n }\n\n\n\n if (!pm->s4_disabled) {\n\n pkg = aml_package(4);\n\n aml_append(pkg, aml_int(pm->s4_val)); /* PM1a_CNT.SLP_TYP */\n\n /* PM1b_CNT.SLP_TYP, FIXME: not impl. */\n\n aml_append(pkg, aml_int(pm->s4_val));\n\n aml_append(pkg, aml_int(0)); /* reserved */\n\n aml_append(pkg, aml_int(0)); /* reserved */\n\n aml_append(scope, aml_name_decl(\"_S4\", pkg));\n\n }\n\n\n\n pkg = aml_package(4);\n\n aml_append(pkg, aml_int(0)); /* PM1a_CNT.SLP_TYP */\n\n aml_append(pkg, aml_int(0)); /* PM1b_CNT.SLP_TYP not impl. */\n\n aml_append(pkg, aml_int(0)); /* reserved */\n\n aml_append(pkg, aml_int(0)); /* reserved */\n\n aml_append(scope, aml_name_decl(\"_S5\", pkg));\n\n aml_append(dsdt, scope);\n\n\n\n /* create fw_cfg node, unconditionally */\n\n {\n\n /* when using port i/o, the 8-bit data register *always* overlaps\n\n * with half of the 16-bit control register. Hence, the total size\n\n * of the i/o region used is FW_CFG_CTL_SIZE; when using DMA, the\n\n * DMA control register is located at FW_CFG_DMA_IO_BASE + 4 */\n\n uint8_t io_size = object_property_get_bool(OBJECT(pcms->fw_cfg),\n\n \"dma_enabled\", NULL) ?\n\n ROUND_UP(FW_CFG_CTL_SIZE, 4) + sizeof(dma_addr_t) :\n\n FW_CFG_CTL_SIZE;\n\n\n\n scope = aml_scope(\"\\\\_SB.PCI0\");\n\n dev = aml_device(\"FWCF\");\n\n\n\n aml_append(dev, aml_name_decl(\"_HID\", aml_string(\"QEMU0002\")));\n\n\n\n /* device present, functioning, decoding, not shown in UI */\n\n aml_append(dev, aml_name_decl(\"_STA\", aml_int(0xB)));\n\n\n\n crs = aml_resource_template();\n\n aml_append(crs,\n\n aml_io(AML_DECODE16, FW_CFG_IO_BASE, FW_CFG_IO_BASE, 0x01, io_size)\n\n );\n\n aml_append(dev, aml_name_decl(\"_CRS\", crs));\n\n\n\n aml_append(scope, dev);\n\n aml_append(dsdt, scope);\n\n }\n\n\n\n if (misc->applesmc_io_base) {\n\n scope = aml_scope(\"\\\\_SB.PCI0.ISA\");\n\n dev = aml_device(\"SMC\");\n\n\n\n aml_append(dev, aml_name_decl(\"_HID\", aml_eisaid(\"APP0001\")));\n\n /* device present, functioning, decoding, not shown in UI */\n\n aml_append(dev, aml_name_decl(\"_STA\", aml_int(0xB)));\n\n\n\n crs = aml_resource_template();\n\n aml_append(crs,\n\n aml_io(AML_DECODE16, misc->applesmc_io_base, misc->applesmc_io_base,\n\n 0x01, APPLESMC_MAX_DATA_LENGTH)\n\n );\n\n aml_append(crs, aml_irq_no_flags(6));\n\n aml_append(dev, aml_name_decl(\"_CRS\", crs));\n\n\n\n aml_append(scope, dev);\n\n aml_append(dsdt, scope);\n\n }\n\n\n\n if (misc->pvpanic_port) {\n\n scope = aml_scope(\"\\\\_SB.PCI0.ISA\");\n\n\n\n dev = aml_device(\"PEVT\");\n\n aml_append(dev, aml_name_decl(\"_HID\", aml_string(\"QEMU0001\")));\n\n\n\n crs = aml_resource_template();\n\n aml_append(crs,\n\n aml_io(AML_DECODE16, misc->pvpanic_port, misc->pvpanic_port, 1, 1)\n\n );\n\n aml_append(dev, aml_name_decl(\"_CRS\", crs));\n\n\n\n aml_append(dev, aml_operation_region(\"PEOR\", AML_SYSTEM_IO,\n\n aml_int(misc->pvpanic_port), 1));\n\n field = aml_field(\"PEOR\", AML_BYTE_ACC, AML_NOLOCK, AML_PRESERVE);\n\n aml_append(field, aml_named_field(\"PEPT\", 8));\n\n aml_append(dev, field);\n\n\n\n /* device present, functioning, decoding, shown in UI */\n\n aml_append(dev, aml_name_decl(\"_STA\", aml_int(0xF)));\n\n\n\n method = aml_method(\"RDPT\", 0, AML_NOTSERIALIZED);\n\n aml_append(method, aml_store(aml_name(\"PEPT\"), aml_local(0)));\n\n aml_append(method, aml_return(aml_local(0)));\n\n aml_append(dev, method);\n\n\n\n method = aml_method(\"WRPT\", 1, AML_NOTSERIALIZED);\n\n aml_append(method, aml_store(aml_arg(0), aml_name(\"PEPT\")));\n\n aml_append(dev, method);\n\n\n\n aml_append(scope, dev);\n\n aml_append(dsdt, scope);\n\n }\n\n\n\n sb_scope = aml_scope(\"\\\\_SB\");\n\n {\n\n build_processor_devices(sb_scope, machine, pm);\n\n\n\n build_memory_devices(sb_scope, nr_mem, pm->mem_hp_io_base,\n\n pm->mem_hp_io_len);\n\n\n\n {\n\n Object *pci_host;\n\n PCIBus *bus = NULL;\n\n\n\n pci_host = acpi_get_i386_pci_host();\n\n if (pci_host) {\n\n bus = PCI_HOST_BRIDGE(pci_host)->bus;\n\n }\n\n\n\n if (bus) {\n\n Aml *scope = aml_scope(\"PCI0\");\n\n /* Scan all PCI buses. Generate tables to support hotplug. */\n\n build_append_pci_bus_devices(scope, bus, pm->pcihp_bridge_en);\n\n\n\n if (misc->tpm_version != TPM_VERSION_UNSPEC) {\n\n dev = aml_device(\"ISA.TPM\");\n\n aml_append(dev, aml_name_decl(\"_HID\", aml_eisaid(\"PNP0C31\")));\n\n aml_append(dev, aml_name_decl(\"_STA\", aml_int(0xF)));\n\n crs = aml_resource_template();\n\n aml_append(crs, aml_memory32_fixed(TPM_TIS_ADDR_BASE,\n\n TPM_TIS_ADDR_SIZE, AML_READ_WRITE));\n\n aml_append(crs, aml_irq_no_flags(TPM_TIS_IRQ));\n\n aml_append(dev, aml_name_decl(\"_CRS\", crs));\n\n aml_append(scope, dev);\n\n }\n\n\n\n aml_append(sb_scope, scope);\n\n }\n\n }\n\n aml_append(dsdt, sb_scope);\n\n }\n\n\n\n /* copy AML table into ACPI tables blob and patch header there */\n\n g_array_append_vals(table_data, dsdt->buf->data, dsdt->buf->len);\n\n build_header(linker, table_data,\n\n (void *)(table_data->data + table_data->len - dsdt->buf->len),\n\n \"DSDT\", dsdt->buf->len, 1, NULL, NULL);\n\n free_aml_allocator();\n\n}\n", + "output": "1", + "index": 24254 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void do_interrupt_protected(int intno, int is_int, int error_code,\n\n unsigned int next_eip)\n\n{\n\n SegmentCache *dt;\n\n uint8_t *ptr, *ssp;\n\n int type, dpl, selector, ss_dpl;\n\n int has_error_code, new_stack, shift;\n\n uint32_t e1, e2, offset, ss, esp, ss_e1, ss_e2, push_size;\n\n uint32_t old_cs, old_ss, old_esp, old_eip;\n\n\n\n dt = &env->idt;\n\n if (intno * 8 + 7 > dt->limit)\n\n raise_exception_err(EXCP0D_GPF, intno * 8 + 2);\n\n ptr = dt->base + intno * 8;\n\n e1 = ldl(ptr);\n\n e2 = ldl(ptr + 4);\n\n /* check gate type */\n\n type = (e2 >> DESC_TYPE_SHIFT) & 0x1f;\n\n switch(type) {\n\n case 5: /* task gate */\n\n cpu_abort(env, \"task gate not supported\");\n\n break;\n\n case 6: /* 286 interrupt gate */\n\n case 7: /* 286 trap gate */\n\n case 14: /* 386 interrupt gate */\n\n case 15: /* 386 trap gate */\n\n break;\n\n default:\n\n raise_exception_err(EXCP0D_GPF, intno * 8 + 2);\n\n break;\n\n }\n\n dpl = (e2 >> DESC_DPL_SHIFT) & 3;\n\n /* check privledge if software int */\n\n if (is_int && dpl < env->cpl)\n\n raise_exception_err(EXCP0D_GPF, intno * 8 + 2);\n\n /* check valid bit */\n\n if (!(e2 & DESC_P_MASK))\n\n raise_exception_err(EXCP0B_NOSEG, intno * 8 + 2);\n\n selector = e1 >> 16;\n\n offset = (e2 & 0xffff0000) | (e1 & 0x0000ffff);\n\n if ((selector & 0xfffc) == 0)\n\n raise_exception_err(EXCP0D_GPF, 0);\n\n\n\n if (load_segment(&e1, &e2, selector) != 0)\n\n raise_exception_err(EXCP0D_GPF, selector & 0xfffc);\n\n if (!(e2 & DESC_S_MASK) || !(e2 & (DESC_CS_MASK)))\n\n raise_exception_err(EXCP0D_GPF, selector & 0xfffc);\n\n dpl = (e2 >> DESC_DPL_SHIFT) & 3;\n\n if (dpl > env->cpl)\n\n raise_exception_err(EXCP0D_GPF, selector & 0xfffc);\n\n if (!(e2 & DESC_P_MASK))\n\n raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);\n\n if (!(e2 & DESC_C_MASK) && dpl < env->cpl) {\n\n /* to inner priviledge */\n\n get_ss_esp_from_tss(&ss, &esp, dpl);\n\n if ((ss & 0xfffc) == 0)\n\n raise_exception_err(EXCP0A_TSS, ss & 0xfffc);\n\n if ((ss & 3) != dpl)\n\n raise_exception_err(EXCP0A_TSS, ss & 0xfffc);\n\n if (load_segment(&ss_e1, &ss_e2, ss) != 0)\n\n raise_exception_err(EXCP0A_TSS, ss & 0xfffc);\n\n ss_dpl = (ss_e2 >> DESC_DPL_SHIFT) & 3;\n\n if (ss_dpl != dpl)\n\n raise_exception_err(EXCP0A_TSS, ss & 0xfffc);\n\n if (!(ss_e2 & DESC_S_MASK) ||\n\n (ss_e2 & DESC_CS_MASK) ||\n\n !(ss_e2 & DESC_W_MASK))\n\n raise_exception_err(EXCP0A_TSS, ss & 0xfffc);\n\n if (!(ss_e2 & DESC_P_MASK))\n\n raise_exception_err(EXCP0A_TSS, ss & 0xfffc);\n\n new_stack = 1;\n\n } else if ((e2 & DESC_C_MASK) || dpl == env->cpl) {\n\n /* to same priviledge */\n\n new_stack = 0;\n\n } else {\n\n raise_exception_err(EXCP0D_GPF, selector & 0xfffc);\n\n new_stack = 0; /* avoid warning */\n\n }\n\n\n\n shift = type >> 3;\n\n has_error_code = 0;\n\n if (!is_int) {\n\n switch(intno) {\n\n case 8:\n\n case 10:\n\n case 11:\n\n case 12:\n\n case 13:\n\n case 14:\n\n case 17:\n\n has_error_code = 1;\n\n break;\n\n }\n\n }\n\n push_size = 6 + (new_stack << 2) + (has_error_code << 1);\n\n if (env->eflags & VM_MASK)\n\n push_size += 8;\n\n push_size <<= shift;\n\n\n\n /* XXX: check that enough room is available */\n\n if (new_stack) {\n\n old_esp = env->regs[R_ESP];\n\n old_ss = env->segs[R_SS].selector;\n\n load_seg(R_SS, ss, env->eip);\n\n } else {\n\n old_esp = 0;\n\n old_ss = 0;\n\n esp = env->regs[R_ESP];\n\n }\n\n if (is_int)\n\n old_eip = next_eip;\n\n else\n\n old_eip = env->eip;\n\n old_cs = env->segs[R_CS].selector;\n\n load_seg(R_CS, selector, env->eip);\n\n env->eip = offset;\n\n env->regs[R_ESP] = esp - push_size;\n\n ssp = env->segs[R_SS].base + esp;\n\n if (shift == 1) {\n\n int old_eflags;\n\n if (env->eflags & VM_MASK) {\n\n ssp -= 4;\n\n stl(ssp, env->segs[R_GS].selector);\n\n ssp -= 4;\n\n stl(ssp, env->segs[R_FS].selector);\n\n ssp -= 4;\n\n stl(ssp, env->segs[R_DS].selector);\n\n ssp -= 4;\n\n stl(ssp, env->segs[R_ES].selector);\n\n }\n\n if (new_stack) {\n\n ssp -= 4;\n\n stl(ssp, old_ss);\n\n ssp -= 4;\n\n stl(ssp, old_esp);\n\n }\n\n ssp -= 4;\n\n old_eflags = compute_eflags();\n\n stl(ssp, old_eflags);\n\n ssp -= 4;\n\n stl(ssp, old_cs);\n\n ssp -= 4;\n\n stl(ssp, old_eip);\n\n if (has_error_code) {\n\n ssp -= 4;\n\n stl(ssp, error_code);\n\n }\n\n } else {\n\n if (new_stack) {\n\n ssp -= 2;\n\n stw(ssp, old_ss);\n\n ssp -= 2;\n\n stw(ssp, old_esp);\n\n }\n\n ssp -= 2;\n\n stw(ssp, compute_eflags());\n\n ssp -= 2;\n\n stw(ssp, old_cs);\n\n ssp -= 2;\n\n stw(ssp, old_eip);\n\n if (has_error_code) {\n\n ssp -= 2;\n\n stw(ssp, error_code);\n\n }\n\n }\n\n \n\n /* interrupt gate clear IF mask */\n\n if ((type & 1) == 0) {\n\n env->eflags &= ~IF_MASK;\n\n }\n\n env->eflags &= ~(TF_MASK | VM_MASK | RF_MASK | NT_MASK);\n\n}\n", + "output": "0", + "index": 10035 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int mpeg_decode_slice(MpegEncContext *s, int mb_y,\n\n const uint8_t **buf, int buf_size)\n\n{\n\n AVCodecContext *avctx = s->avctx;\n\n const int lowres = s->avctx->lowres;\n\n const int field_pic = s->picture_structure != PICT_FRAME;\n\n int ret;\n\n\n\n s->resync_mb_x =\n\n s->resync_mb_y = -1;\n\n\n\n av_assert0(mb_y < s->mb_height);\n\n\n\n init_get_bits(&s->gb, *buf, buf_size * 8);\n\n if (s->codec_id != AV_CODEC_ID_MPEG1VIDEO && s->mb_height > 2800/16)\n\n skip_bits(&s->gb, 3);\n\n\n\n ff_mpeg1_clean_buffers(s);\n\n s->interlaced_dct = 0;\n\n\n\n s->qscale = get_qscale(s);\n\n\n\n if (s->qscale == 0) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"qscale == 0\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n /* extra slice info */\n\n if (skip_1stop_8data_bits(&s->gb) < 0)\n\n return AVERROR_INVALIDDATA;\n\n\n\n s->mb_x = 0;\n\n\n\n if (mb_y == 0 && s->codec_tag == AV_RL32(\"SLIF\")) {\n\n skip_bits1(&s->gb);\n\n } else {\n\n while (get_bits_left(&s->gb) > 0) {\n\n int code = get_vlc2(&s->gb, ff_mbincr_vlc.table,\n\n MBINCR_VLC_BITS, 2);\n\n if (code < 0) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"first mb_incr damaged\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n if (code >= 33) {\n\n if (code == 33)\n\n s->mb_x += 33;\n\n /* otherwise, stuffing, nothing to do */\n\n } else {\n\n s->mb_x += code;\n\n break;\n\n }\n\n }\n\n }\n\n\n\n if (s->mb_x >= (unsigned) s->mb_width) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"initial skip overflow\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n if (avctx->hwaccel && avctx->hwaccel->decode_slice) {\n\n const uint8_t *buf_end, *buf_start = *buf - 4; /* include start_code */\n\n int start_code = -1;\n\n buf_end = avpriv_find_start_code(buf_start + 2, *buf + buf_size, &start_code);\n\n if (buf_end < *buf + buf_size)\n\n buf_end -= 4;\n\n s->mb_y = mb_y;\n\n if (avctx->hwaccel->decode_slice(avctx, buf_start, buf_end - buf_start) < 0)\n\n return DECODE_SLICE_ERROR;\n\n *buf = buf_end;\n\n return DECODE_SLICE_OK;\n\n }\n\n\n\n s->resync_mb_x = s->mb_x;\n\n s->resync_mb_y = s->mb_y = mb_y;\n\n s->mb_skip_run = 0;\n\n ff_init_block_index(s);\n\n\n\n if (s->mb_y == 0 && s->mb_x == 0 && (s->first_field || s->picture_structure == PICT_FRAME)) {\n\n if (s->avctx->debug & FF_DEBUG_PICT_INFO) {\n\n av_log(s->avctx, AV_LOG_DEBUG,\n\n \"qp:%d fc:%2d%2d%2d%2d %s %s %s %s %s dc:%d pstruct:%d fdct:%d cmv:%d qtype:%d ivlc:%d rff:%d %s\\n\",\n\n s->qscale,\n\n s->mpeg_f_code[0][0], s->mpeg_f_code[0][1],\n\n s->mpeg_f_code[1][0], s->mpeg_f_code[1][1],\n\n s->pict_type == AV_PICTURE_TYPE_I ? \"I\" :\n\n (s->pict_type == AV_PICTURE_TYPE_P ? \"P\" :\n\n (s->pict_type == AV_PICTURE_TYPE_B ? \"B\" : \"S\")),\n\n s->progressive_sequence ? \"ps\" : \"\",\n\n s->progressive_frame ? \"pf\" : \"\",\n\n s->alternate_scan ? \"alt\" : \"\",\n\n s->top_field_first ? \"top\" : \"\",\n\n s->intra_dc_precision, s->picture_structure,\n\n s->frame_pred_frame_dct, s->concealment_motion_vectors,\n\n s->q_scale_type, s->intra_vlc_format,\n\n s->repeat_first_field, s->chroma_420_type ? \"420\" : \"\");\n\n }\n\n }\n\n\n\n for (;;) {\n\n // If 1, we memcpy blocks in xvmcvideo.\n\n if ((CONFIG_MPEG1_XVMC_HWACCEL || CONFIG_MPEG2_XVMC_HWACCEL) && s->pack_pblocks)\n\n ff_xvmc_init_block(s); // set s->block\n\n\n\n if ((ret = mpeg_decode_mb(s, s->block)) < 0)\n\n return ret;\n\n\n\n // Note motion_val is normally NULL unless we want to extract the MVs.\n\n if (s->current_picture.motion_val[0] && !s->encoding) {\n\n const int wrap = s->b8_stride;\n\n int xy = s->mb_x * 2 + s->mb_y * 2 * wrap;\n\n int b8_xy = 4 * (s->mb_x + s->mb_y * s->mb_stride);\n\n int motion_x, motion_y, dir, i;\n\n\n\n for (i = 0; i < 2; i++) {\n\n for (dir = 0; dir < 2; dir++) {\n\n if (s->mb_intra ||\n\n (dir == 1 && s->pict_type != AV_PICTURE_TYPE_B)) {\n\n motion_x = motion_y = 0;\n\n } else if (s->mv_type == MV_TYPE_16X16 ||\n\n (s->mv_type == MV_TYPE_FIELD && field_pic)) {\n\n motion_x = s->mv[dir][0][0];\n\n motion_y = s->mv[dir][0][1];\n\n } else { /* if ((s->mv_type == MV_TYPE_FIELD) || (s->mv_type == MV_TYPE_16X8)) */\n\n motion_x = s->mv[dir][i][0];\n\n motion_y = s->mv[dir][i][1];\n\n }\n\n\n\n s->current_picture.motion_val[dir][xy][0] = motion_x;\n\n s->current_picture.motion_val[dir][xy][1] = motion_y;\n\n s->current_picture.motion_val[dir][xy + 1][0] = motion_x;\n\n s->current_picture.motion_val[dir][xy + 1][1] = motion_y;\n\n s->current_picture.ref_index [dir][b8_xy] =\n\n s->current_picture.ref_index [dir][b8_xy + 1] = s->field_select[dir][i];\n\n av_assert2(s->field_select[dir][i] == 0 ||\n\n s->field_select[dir][i] == 1);\n\n }\n\n xy += wrap;\n\n b8_xy += 2;\n\n }\n\n }\n\n\n\n s->dest[0] += 16 >> lowres;\n\n s->dest[1] +=(16 >> lowres) >> s->chroma_x_shift;\n\n s->dest[2] +=(16 >> lowres) >> s->chroma_x_shift;\n\n\n\n ff_mpv_decode_mb(s, s->block);\n\n\n\n if (++s->mb_x >= s->mb_width) {\n\n const int mb_size = 16 >> s->avctx->lowres;\n\n\n\n ff_mpeg_draw_horiz_band(s, mb_size * (s->mb_y >> field_pic), mb_size);\n\n ff_mpv_report_decode_progress(s);\n\n\n\n s->mb_x = 0;\n\n s->mb_y += 1 << field_pic;\n\n\n\n if (s->mb_y >= s->mb_height) {\n\n int left = get_bits_left(&s->gb);\n\n int is_d10 = s->chroma_format == 2 &&\n\n s->pict_type == AV_PICTURE_TYPE_I &&\n\n avctx->profile == 0 && avctx->level == 5 &&\n\n s->intra_dc_precision == 2 &&\n\n s->q_scale_type == 1 && s->alternate_scan == 0 &&\n\n s->progressive_frame == 0\n\n /* vbv_delay == 0xBBB || 0xE10 */;\n\n\n\n if (left >= 32 && !is_d10) {\n\n GetBitContext gb = s->gb;\n\n align_get_bits(&gb);\n\n if (show_bits(&gb, 24) == 0x060E2B) {\n\n av_log(avctx, AV_LOG_DEBUG, \"Invalid MXF data found in video stream\\n\");\n\n is_d10 = 1;\n\n }\n\n }\n\n\n\n if (left < 0 ||\n\n (left && show_bits(&s->gb, FFMIN(left, 23)) && !is_d10) ||\n\n ((avctx->err_recognition & (AV_EF_BITSTREAM | AV_EF_AGGRESSIVE)) && left > 8)) {\n\n av_log(avctx, AV_LOG_ERROR, \"end mismatch left=%d %0X\\n\",\n\n left, show_bits(&s->gb, FFMIN(left, 23)));\n\n return AVERROR_INVALIDDATA;\n\n } else\n\n goto eos;\n\n }\n\n // There are some files out there which are missing the last slice\n\n // in cases where the slice is completely outside the visible\n\n // area, we detect this here instead of running into the end expecting\n\n // more data\n\n if (s->mb_y >= ((s->height + 15) >> 4) &&\n\n !s->progressive_sequence &&\n\n get_bits_left(&s->gb) <= 8 &&\n\n get_bits_left(&s->gb) >= 0 &&\n\n s->mb_skip_run == -1 &&\n\n show_bits(&s->gb, 8) == 0)\n\n goto eos;\n\n\n\n ff_init_block_index(s);\n\n }\n\n\n\n /* skip mb handling */\n\n if (s->mb_skip_run == -1) {\n\n /* read increment again */\n\n s->mb_skip_run = 0;\n\n for (;;) {\n\n int code = get_vlc2(&s->gb, ff_mbincr_vlc.table,\n\n MBINCR_VLC_BITS, 2);\n\n if (code < 0) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"mb incr damaged\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n if (code >= 33) {\n\n if (code == 33) {\n\n s->mb_skip_run += 33;\n\n } else if (code == 35) {\n\n if (s->mb_skip_run != 0 || show_bits(&s->gb, 15) != 0) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"slice mismatch\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n goto eos; /* end of slice */\n\n }\n\n /* otherwise, stuffing, nothing to do */\n\n } else {\n\n s->mb_skip_run += code;\n\n break;\n\n }\n\n }\n\n if (s->mb_skip_run) {\n\n int i;\n\n if (s->pict_type == AV_PICTURE_TYPE_I) {\n\n av_log(s->avctx, AV_LOG_ERROR,\n\n \"skipped MB in I frame at %d %d\\n\", s->mb_x, s->mb_y);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n /* skip mb */\n\n s->mb_intra = 0;\n\n for (i = 0; i < 12; i++)\n\n s->block_last_index[i] = -1;\n\n if (s->picture_structure == PICT_FRAME)\n\n s->mv_type = MV_TYPE_16X16;\n\n else\n\n s->mv_type = MV_TYPE_FIELD;\n\n if (s->pict_type == AV_PICTURE_TYPE_P) {\n\n /* if P type, zero motion vector is implied */\n\n s->mv_dir = MV_DIR_FORWARD;\n\n s->mv[0][0][0] = s->mv[0][0][1] = 0;\n\n s->last_mv[0][0][0] = s->last_mv[0][0][1] = 0;\n\n s->last_mv[0][1][0] = s->last_mv[0][1][1] = 0;\n\n s->field_select[0][0] = (s->picture_structure - 1) & 1;\n\n } else {\n\n /* if B type, reuse previous vectors and directions */\n\n s->mv[0][0][0] = s->last_mv[0][0][0];\n\n s->mv[0][0][1] = s->last_mv[0][0][1];\n\n s->mv[1][0][0] = s->last_mv[1][0][0];\n\n s->mv[1][0][1] = s->last_mv[1][0][1];\n\n }\n\n }\n\n }\n\n }\n\neos: // end of slice\n\n if (get_bits_left(&s->gb) < 0) {\n\n av_log(s, AV_LOG_ERROR, \"overread %d\\n\", -get_bits_left(&s->gb));\n\n return AVERROR_INVALIDDATA;\n\n }\n\n *buf += (get_bits_count(&s->gb) - 1) / 8;\n\n ff_dlog(s, \"Slice start:%d %d end:%d %d\\n\", s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y);\n\n return 0;\n\n}\n", + "output": "1", + "index": 3480 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int ff_rate_control_init(MpegEncContext *s)\n\n{\n\n RateControlContext *rcc= &s->rc_context;\n\n int i;\n\n char *error = NULL;\n\n static const char *const_names[]={\n\n \"PI\",\n\n \"E\",\n\n \"iTex\",\n\n \"pTex\",\n\n \"tex\",\n\n \"mv\",\n\n \"fCode\",\n\n \"iCount\",\n\n \"mcVar\",\n\n \"var\",\n\n \"isI\",\n\n \"isP\",\n\n \"isB\",\n\n \"avgQP\",\n\n \"qComp\",\n\n/* \"lastIQP\",\n\n \"lastPQP\",\n\n \"lastBQP\",\n\n \"nextNonBQP\",*/\n\n \"avgIITex\",\n\n \"avgPITex\",\n\n \"avgPPTex\",\n\n \"avgBPTex\",\n\n \"avgTex\",\n\n NULL\n\n };\n\n static double (*func1[])(void *, double)={\n\n (void *)bits2qp,\n\n (void *)qp2bits,\n\n NULL\n\n };\n\n static const char *func1_names[]={\n\n \"bits2qp\",\n\n \"qp2bits\",\n\n NULL\n\n };\n\n emms_c();\n\n\n\n rcc->rc_eq_eval = ff_parse(s->avctx->rc_eq, const_names, func1, func1_names, NULL, NULL, &error);\n\n if (!rcc->rc_eq_eval) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"Error parsing rc_eq \\\"%s\\\": %s\\n\", s->avctx->rc_eq, error? error : \"\");\n\n return -1;\n\n }\n\n\n\n for(i=0; i<5; i++){\n\n rcc->pred[i].coeff= FF_QP2LAMBDA * 7.0;\n\n rcc->pred[i].count= 1.0;\n\n\n\n rcc->pred[i].decay= 0.4;\n\n rcc->i_cplx_sum [i]=\n\n rcc->p_cplx_sum [i]=\n\n rcc->mv_bits_sum[i]=\n\n rcc->qscale_sum [i]=\n\n rcc->frame_count[i]= 1; // 1 is better cuz of 1/0 and such\n\n rcc->last_qscale_for[i]=FF_QP2LAMBDA * 5;\n\n }\n\n rcc->buffer_index= s->avctx->rc_initial_buffer_occupancy;\n\n\n\n if(s->flags&CODEC_FLAG_PASS2){\n\n int i;\n\n char *p;\n\n\n\n /* find number of pics */\n\n p= s->avctx->stats_in;\n\n for(i=-1; p; i++){\n\n p= strchr(p+1, ';');\n\n }\n\n i+= s->max_b_frames;\n\n if(i<=0 || i>=INT_MAX / sizeof(RateControlEntry))\n\n return -1;\n\n rcc->entry = (RateControlEntry*)av_mallocz(i*sizeof(RateControlEntry));\n\n rcc->num_entries= i;\n\n\n\n /* init all to skipped p frames (with b frames we might have a not encoded frame at the end FIXME) */\n\n for(i=0; inum_entries; i++){\n\n RateControlEntry *rce= &rcc->entry[i];\n\n rce->pict_type= rce->new_pict_type=P_TYPE;\n\n rce->qscale= rce->new_qscale=FF_QP2LAMBDA * 2;\n\n rce->misc_bits= s->mb_num + 10;\n\n rce->mb_var_sum= s->mb_num*100;\n\n }\n\n\n\n /* read stats */\n\n p= s->avctx->stats_in;\n\n for(i=0; inum_entries - s->max_b_frames; i++){\n\n RateControlEntry *rce;\n\n int picture_number;\n\n int e;\n\n char *next;\n\n\n\n next= strchr(p, ';');\n\n if(next){\n\n (*next)=0; //sscanf in unbelievably slow on looong strings //FIXME copy / do not write\n\n next++;\n\n }\n\n e= sscanf(p, \" in:%d \", &picture_number);\n\n\n\n assert(picture_number >= 0);\n\n assert(picture_number < rcc->num_entries);\n\n rce= &rcc->entry[picture_number];\n\n\n\n e+=sscanf(p, \" in:%*d out:%*d type:%d q:%f itex:%d ptex:%d mv:%d misc:%d fcode:%d bcode:%d mc-var:%d var:%d icount:%d skipcount:%d hbits:%d\",\n\n &rce->pict_type, &rce->qscale, &rce->i_tex_bits, &rce->p_tex_bits, &rce->mv_bits, &rce->misc_bits,\n\n &rce->f_code, &rce->b_code, &rce->mc_mb_var_sum, &rce->mb_var_sum, &rce->i_count, &rce->skip_count, &rce->header_bits);\n\n if(e!=14){\n\n av_log(s->avctx, AV_LOG_ERROR, \"statistics are damaged at line %d, parser out=%d\\n\", i, e);\n\n return -1;\n\n }\n\n\n\n p= next;\n\n }\n\n\n\n if(init_pass2(s) < 0) return -1;\n\n\n\n //FIXME maybe move to end\n\n if((s->flags&CODEC_FLAG_PASS2) && s->avctx->rc_strategy == FF_RC_STRATEGY_XVID) {\n\n#ifdef CONFIG_LIBXVID\n\n return ff_xvid_rate_control_init(s);\n\n#else\n\n av_log(s->avctx, AV_LOG_ERROR, \"XviD ratecontrol requires libavcodec compiled with XviD support\\n\");\n\n return -1;\n\n#endif\n\n }\n\n }\n\n\n\n if(!(s->flags&CODEC_FLAG_PASS2)){\n\n\n\n rcc->short_term_qsum=0.001;\n\n rcc->short_term_qcount=0.001;\n\n\n\n rcc->pass1_rc_eq_output_sum= 0.001;\n\n rcc->pass1_wanted_bits=0.001;\n\n\n\n if(s->avctx->qblur > 1.0){\n\n av_log(s->avctx, AV_LOG_ERROR, \"qblur too large\\n\");\n\n return -1;\n\n }\n\n /* init stuff with the user specified complexity */\n\n if(s->avctx->rc_initial_cplx){\n\n for(i=0; i<60*30; i++){\n\n double bits= s->avctx->rc_initial_cplx * (i/10000.0 + 1.0)*s->mb_num;\n\n RateControlEntry rce;\n\n double q;\n\n\n\n if (i%((s->gop_size+3)/4)==0) rce.pict_type= I_TYPE;\n\n else if(i%(s->max_b_frames+1)) rce.pict_type= B_TYPE;\n\n else rce.pict_type= P_TYPE;\n\n\n\n rce.new_pict_type= rce.pict_type;\n\n rce.mc_mb_var_sum= bits*s->mb_num/100000;\n\n rce.mb_var_sum = s->mb_num;\n\n rce.qscale = FF_QP2LAMBDA * 2;\n\n rce.f_code = 2;\n\n rce.b_code = 1;\n\n rce.misc_bits= 1;\n\n\n\n if(s->pict_type== I_TYPE){\n\n rce.i_count = s->mb_num;\n\n rce.i_tex_bits= bits;\n\n rce.p_tex_bits= 0;\n\n rce.mv_bits= 0;\n\n }else{\n\n rce.i_count = 0; //FIXME we do know this approx\n\n rce.i_tex_bits= 0;\n\n rce.p_tex_bits= bits*0.9;\n\n rce.mv_bits= bits*0.1;\n\n }\n\n rcc->i_cplx_sum [rce.pict_type] += rce.i_tex_bits*rce.qscale;\n\n rcc->p_cplx_sum [rce.pict_type] += rce.p_tex_bits*rce.qscale;\n\n rcc->mv_bits_sum[rce.pict_type] += rce.mv_bits;\n\n rcc->frame_count[rce.pict_type] ++;\n\n\n\n bits= rce.i_tex_bits + rce.p_tex_bits;\n\n\n\n q= get_qscale(s, &rce, rcc->pass1_wanted_bits/rcc->pass1_rc_eq_output_sum, i);\n\n rcc->pass1_wanted_bits+= s->bit_rate/(1/av_q2d(s->avctx->time_base)); //FIXME misbehaves a little for variable fps\n\n }\n\n }\n\n\n\n }\n\n\n\n return 0;\n\n}\n", + "output": "0", + "index": 18570 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int compute_pkt_fields2(AVFormatContext *s, AVStream *st, AVPacket *pkt)\n{\n int delay = FFMAX(st->codec->has_b_frames, st->codec->max_b_frames > 0);\n int num, den, frame_size, i;\n av_dlog(s, \"compute_pkt_fields2: pts:%s dts:%s cur_dts:%s b:%d size:%d st:%d\\n\",\n av_ts2str(pkt->pts), av_ts2str(pkt->dts), av_ts2str(st->cur_dts), delay, pkt->size, pkt->stream_index);\n /* duration field */\n if (pkt->duration == 0) {\n ff_compute_frame_duration(&num, &den, st, NULL, pkt);\n if (den && num) {\n pkt->duration = av_rescale(1, num * (int64_t)st->time_base.den * st->codec->ticks_per_frame, den * (int64_t)st->time_base.num);\n if (pkt->pts == AV_NOPTS_VALUE && pkt->dts != AV_NOPTS_VALUE && delay == 0)\n pkt->pts = pkt->dts;\n //XXX/FIXME this is a temporary hack until all encoders output pts\n if ((pkt->pts == 0 || pkt->pts == AV_NOPTS_VALUE) && pkt->dts == AV_NOPTS_VALUE && !delay) {\n static int warned;\n if (!warned) {\n av_log(s, AV_LOG_WARNING, \"Encoder did not produce proper pts, making some up.\\n\");\n warned = 1;\n pkt->dts =\n// pkt->pts= st->cur_dts;\n pkt->pts = st->pts.val;\n //calculate dts from pts\n if (pkt->pts != AV_NOPTS_VALUE && pkt->dts == AV_NOPTS_VALUE && delay <= MAX_REORDER_DELAY) {\n st->pts_buffer[0] = pkt->pts;\n for (i = 1; i < delay + 1 && st->pts_buffer[i] == AV_NOPTS_VALUE; i++)\n st->pts_buffer[i] = pkt->pts + (i - delay - 1) * pkt->duration;\n for (i = 0; ipts_buffer[i] > st->pts_buffer[i + 1]; i++)\n FFSWAP(int64_t, st->pts_buffer[i], st->pts_buffer[i + 1]);\n pkt->dts = st->pts_buffer[0];\n if (st->cur_dts && st->cur_dts != AV_NOPTS_VALUE &&\n ((!(s->oformat->flags & AVFMT_TS_NONSTRICT) &&\n st->cur_dts >= pkt->dts) || st->cur_dts > pkt->dts)) {\n av_log(s, AV_LOG_ERROR,\n \"Application provided invalid, non monotonically increasing dts to muxer in stream %d: %s >= %s\\n\",\n st->index, av_ts2str(st->cur_dts), av_ts2str(pkt->dts));\n return AVERROR(EINVAL);\n if (pkt->dts != AV_NOPTS_VALUE && pkt->pts != AV_NOPTS_VALUE && pkt->pts < pkt->dts) {\n av_log(s, AV_LOG_ERROR, \"pts (%s) < dts (%s) in stream %d\\n\",\n av_ts2str(pkt->pts), av_ts2str(pkt->dts), st->index);\n return AVERROR(EINVAL);\n av_dlog(s, \"av_write_frame: pts2:%s dts2:%s\\n\",\n av_ts2str(pkt->pts), av_ts2str(pkt->dts));\n st->cur_dts = pkt->dts;\n st->pts.val = pkt->dts;\n /* update pts */\n switch (st->codec->codec_type) {\n case AVMEDIA_TYPE_AUDIO:\n frame_size = (pkt->flags & AV_PKT_FLAG_UNCODED_FRAME) ?\n ((AVFrame *)pkt->data)->nb_samples :\n ff_get_audio_frame_size(st->codec, pkt->size, 1);\n /* HACK/FIXME, we skip the initial 0 size packets as they are most\n * likely equal to the encoder delay, but it would be better if we\n * had the real timestamps from the encoder */\n if (frame_size >= 0 && (pkt->size || st->pts.num != st->pts.den >> 1 || st->pts.val)) {\n frac_add(&st->pts, (int64_t)st->time_base.den * frame_size);\n break;\n case AVMEDIA_TYPE_VIDEO:\n frac_add(&st->pts, (int64_t)st->time_base.den * st->codec->time_base.num);\n break;\n default:\n break;\n return 0;", + "output": "1", + "index": 21380 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int decode_ics_info(AACContext *ac, IndividualChannelStream *ics,\n\n GetBitContext *gb)\n\n{\n\n const MPEG4AudioConfig *const m4ac = &ac->oc[1].m4ac;\n\n const int aot = m4ac->object_type;\n\n const int sampling_index = m4ac->sampling_index;\n\n if (aot != AOT_ER_AAC_ELD) {\n\n if (get_bits1(gb)) {\n\n av_log(ac->avctx, AV_LOG_ERROR, \"Reserved bit set.\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n ics->window_sequence[1] = ics->window_sequence[0];\n\n ics->window_sequence[0] = get_bits(gb, 2);\n\n if (aot == AOT_ER_AAC_LD &&\n\n ics->window_sequence[0] != ONLY_LONG_SEQUENCE) {\n\n av_log(ac->avctx, AV_LOG_ERROR,\n\n \"AAC LD is only defined for ONLY_LONG_SEQUENCE but \"\n\n \"window sequence %d found.\\n\", ics->window_sequence[0]);\n\n ics->window_sequence[0] = ONLY_LONG_SEQUENCE;\n\n return AVERROR_INVALIDDATA;\n\n }\n\n ics->use_kb_window[1] = ics->use_kb_window[0];\n\n ics->use_kb_window[0] = get_bits1(gb);\n\n }\n\n ics->num_window_groups = 1;\n\n ics->group_len[0] = 1;\n\n if (ics->window_sequence[0] == EIGHT_SHORT_SEQUENCE) {\n\n int i;\n\n ics->max_sfb = get_bits(gb, 4);\n\n for (i = 0; i < 7; i++) {\n\n if (get_bits1(gb)) {\n\n ics->group_len[ics->num_window_groups - 1]++;\n\n } else {\n\n ics->num_window_groups++;\n\n ics->group_len[ics->num_window_groups - 1] = 1;\n\n }\n\n }\n\n ics->num_windows = 8;\n\n ics->swb_offset = ff_swb_offset_128[sampling_index];\n\n ics->num_swb = ff_aac_num_swb_128[sampling_index];\n\n ics->tns_max_bands = ff_tns_max_bands_128[sampling_index];\n\n ics->predictor_present = 0;\n\n } else {\n\n ics->max_sfb = get_bits(gb, 6);\n\n ics->num_windows = 1;\n\n if (aot == AOT_ER_AAC_LD || aot == AOT_ER_AAC_ELD) {\n\n if (m4ac->frame_length_short) {\n\n ics->swb_offset = ff_swb_offset_480[sampling_index];\n\n ics->num_swb = ff_aac_num_swb_480[sampling_index];\n\n ics->tns_max_bands = ff_tns_max_bands_480[sampling_index];\n\n } else {\n\n ics->swb_offset = ff_swb_offset_512[sampling_index];\n\n ics->num_swb = ff_aac_num_swb_512[sampling_index];\n\n ics->tns_max_bands = ff_tns_max_bands_512[sampling_index];\n\n }\n\n if (!ics->num_swb || !ics->swb_offset)\n\n return AVERROR_BUG;\n\n } else {\n\n ics->swb_offset = ff_swb_offset_1024[sampling_index];\n\n ics->num_swb = ff_aac_num_swb_1024[sampling_index];\n\n ics->tns_max_bands = ff_tns_max_bands_1024[sampling_index];\n\n }\n\n if (aot != AOT_ER_AAC_ELD) {\n\n ics->predictor_present = get_bits1(gb);\n\n ics->predictor_reset_group = 0;\n\n }\n\n if (ics->predictor_present) {\n\n if (aot == AOT_AAC_MAIN) {\n\n if (decode_prediction(ac, ics, gb)) {\n\n return AVERROR_INVALIDDATA;\n\n }\n\n } else if (aot == AOT_AAC_LC ||\n\n aot == AOT_ER_AAC_LC) {\n\n av_log(ac->avctx, AV_LOG_ERROR,\n\n \"Prediction is not allowed in AAC-LC.\\n\");\n\n return AVERROR_INVALIDDATA;\n\n } else {\n\n if (aot == AOT_ER_AAC_LD) {\n\n av_log(ac->avctx, AV_LOG_ERROR,\n\n \"LTP in ER AAC LD not yet implemented.\\n\");\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n if ((ics->ltp.present = get_bits(gb, 1)))\n\n decode_ltp(&ics->ltp, gb, ics->max_sfb);\n\n }\n\n }\n\n }\n\n\n\n if (ics->max_sfb > ics->num_swb) {\n\n av_log(ac->avctx, AV_LOG_ERROR,\n\n \"Number of scalefactor bands in group (%d) \"\n\n \"exceeds limit (%d).\\n\",\n\n ics->max_sfb, ics->num_swb);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n return 0;\n\n}\n", + "output": "1", + "index": 26079 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void mips_fulong2e_init(MachineState *machine)\n\n{\n\n ram_addr_t ram_size = machine->ram_size;\n\n const char *cpu_model = machine->cpu_model;\n\n const char *kernel_filename = machine->kernel_filename;\n\n const char *kernel_cmdline = machine->kernel_cmdline;\n\n const char *initrd_filename = machine->initrd_filename;\n\n char *filename;\n\n MemoryRegion *address_space_mem = get_system_memory();\n\n MemoryRegion *ram = g_new(MemoryRegion, 1);\n\n MemoryRegion *bios = g_new(MemoryRegion, 1);\n\n long bios_size;\n\n int64_t kernel_entry;\n\n qemu_irq *i8259;\n\n qemu_irq *cpu_exit_irq;\n\n PCIBus *pci_bus;\n\n ISABus *isa_bus;\n\n I2CBus *smbus;\n\n DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];\n\n MIPSCPU *cpu;\n\n CPUMIPSState *env;\n\n\n\n /* init CPUs */\n\n if (cpu_model == NULL) {\n\n cpu_model = \"Loongson-2E\";\n\n }\n\n cpu = cpu_mips_init(cpu_model);\n\n if (cpu == NULL) {\n\n fprintf(stderr, \"Unable to find CPU definition\\n\");\n\n exit(1);\n\n }\n\n env = &cpu->env;\n\n\n\n qemu_register_reset(main_cpu_reset, cpu);\n\n\n\n /* fulong 2e has 256M ram. */\n\n ram_size = 256 * 1024 * 1024;\n\n\n\n /* fulong 2e has a 1M flash.Winbond W39L040AP70Z */\n\n bios_size = 1024 * 1024;\n\n\n\n /* allocate RAM */\n\n memory_region_allocate_system_memory(ram, NULL, \"fulong2e.ram\", ram_size);\n\n memory_region_init_ram(bios, NULL, \"fulong2e.bios\", bios_size,\n\n &error_abort);\n\n vmstate_register_ram_global(bios);\n\n memory_region_set_readonly(bios, true);\n\n\n\n memory_region_add_subregion(address_space_mem, 0, ram);\n\n memory_region_add_subregion(address_space_mem, 0x1fc00000LL, bios);\n\n\n\n /* We do not support flash operation, just loading pmon.bin as raw BIOS.\n\n * Please use -L to set the BIOS path and -bios to set bios name. */\n\n\n\n if (kernel_filename) {\n\n loaderparams.ram_size = ram_size;\n\n loaderparams.kernel_filename = kernel_filename;\n\n loaderparams.kernel_cmdline = kernel_cmdline;\n\n loaderparams.initrd_filename = initrd_filename;\n\n kernel_entry = load_kernel (env);\n\n write_bootloader(env, memory_region_get_ram_ptr(bios), kernel_entry);\n\n } else {\n\n if (bios_name == NULL) {\n\n bios_name = FULONG_BIOSNAME;\n\n }\n\n filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);\n\n if (filename) {\n\n bios_size = load_image_targphys(filename, 0x1fc00000LL,\n\n BIOS_SIZE);\n\n g_free(filename);\n\n } else {\n\n bios_size = -1;\n\n }\n\n\n\n if ((bios_size < 0 || bios_size > BIOS_SIZE) &&\n\n !kernel_filename && !qtest_enabled()) {\n\n error_report(\"Could not load MIPS bios '%s'\", bios_name);\n\n exit(1);\n\n }\n\n }\n\n\n\n /* Init internal devices */\n\n cpu_mips_irq_init_cpu(env);\n\n cpu_mips_clock_init(env);\n\n\n\n /* North bridge, Bonito --> IP2 */\n\n pci_bus = bonito_init((qemu_irq *)&(env->irq[2]));\n\n\n\n /* South bridge */\n\n ide_drive_get(hd, ARRAY_SIZE(hd));\n\n\n\n isa_bus = vt82c686b_init(pci_bus, PCI_DEVFN(FULONG2E_VIA_SLOT, 0));\n\n if (!isa_bus) {\n\n fprintf(stderr, \"vt82c686b_init error\\n\");\n\n exit(1);\n\n }\n\n\n\n /* Interrupt controller */\n\n /* The 8259 -> IP5 */\n\n i8259 = i8259_init(isa_bus, env->irq[5]);\n\n isa_bus_irqs(isa_bus, i8259);\n\n\n\n vt82c686b_ide_init(pci_bus, hd, PCI_DEVFN(FULONG2E_VIA_SLOT, 1));\n\n pci_create_simple(pci_bus, PCI_DEVFN(FULONG2E_VIA_SLOT, 2),\n\n \"vt82c686b-usb-uhci\");\n\n pci_create_simple(pci_bus, PCI_DEVFN(FULONG2E_VIA_SLOT, 3),\n\n \"vt82c686b-usb-uhci\");\n\n\n\n smbus = vt82c686b_pm_init(pci_bus, PCI_DEVFN(FULONG2E_VIA_SLOT, 4),\n\n 0xeee1, NULL);\n\n /* TODO: Populate SPD eeprom data. */\n\n smbus_eeprom_init(smbus, 1, eeprom_spd, sizeof(eeprom_spd));\n\n\n\n /* init other devices */\n\n pit = pit_init(isa_bus, 0x40, 0, NULL);\n\n cpu_exit_irq = qemu_allocate_irqs(cpu_request_exit, NULL, 1);\n\n DMA_init(0, cpu_exit_irq);\n\n\n\n /* Super I/O */\n\n isa_create_simple(isa_bus, \"i8042\");\n\n\n\n rtc_init(isa_bus, 2000, NULL);\n\n\n\n serial_hds_isa_init(isa_bus, MAX_SERIAL_PORTS);\n\n parallel_hds_isa_init(isa_bus, 1);\n\n\n\n /* Sound card */\n\n audio_init(pci_bus);\n\n /* Network card */\n\n network_init(pci_bus);\n\n}\n", + "output": "0", + "index": 3367 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void *file_ram_alloc(RAMBlock *block,\n\n ram_addr_t memory,\n\n const char *path,\n\n Error **errp)\n\n{\n\n bool unlink_on_error = false;\n\n char *filename;\n\n char *sanitized_name;\n\n char *c;\n\n void *area = MAP_FAILED;\n\n int fd = -1;\n\n int64_t file_size;\n\n\n\n if (kvm_enabled() && !kvm_has_sync_mmu()) {\n\n error_setg(errp,\n\n \"host lacks kvm mmu notifiers, -mem-path unsupported\");\n\n return NULL;\n\n }\n\n\n\n for (;;) {\n\n fd = open(path, O_RDWR);\n\n if (fd >= 0) {\n\n /* @path names an existing file, use it */\n\n break;\n\n }\n\n if (errno == ENOENT) {\n\n /* @path names a file that doesn't exist, create it */\n\n fd = open(path, O_RDWR | O_CREAT | O_EXCL, 0644);\n\n if (fd >= 0) {\n\n unlink_on_error = true;\n\n break;\n\n }\n\n } else if (errno == EISDIR) {\n\n /* @path names a directory, create a file there */\n\n /* Make name safe to use with mkstemp by replacing '/' with '_'. */\n\n sanitized_name = g_strdup(memory_region_name(block->mr));\n\n for (c = sanitized_name; *c != '\\0'; c++) {\n\n if (*c == '/') {\n\n *c = '_';\n\n }\n\n }\n\n\n\n filename = g_strdup_printf(\"%s/qemu_back_mem.%s.XXXXXX\", path,\n\n sanitized_name);\n\n g_free(sanitized_name);\n\n\n\n fd = mkstemp(filename);\n\n if (fd >= 0) {\n\n unlink(filename);\n\n g_free(filename);\n\n break;\n\n }\n\n g_free(filename);\n\n }\n\n if (errno != EEXIST && errno != EINTR) {\n\n error_setg_errno(errp, errno,\n\n \"can't open backing store %s for guest RAM\",\n\n path);\n\n goto error;\n\n }\n\n /*\n\n * Try again on EINTR and EEXIST. The latter happens when\n\n * something else creates the file between our two open().\n\n */\n\n }\n\n\n\n block->page_size = qemu_fd_getpagesize(fd);\n\n block->mr->align = block->page_size;\n\n#if defined(__s390x__)\n\n if (kvm_enabled()) {\n\n block->mr->align = MAX(block->mr->align, QEMU_VMALLOC_ALIGN);\n\n }\n\n#endif\n\n\n\n file_size = get_file_size(fd);\n\n\n\n if (memory < block->page_size) {\n\n error_setg(errp, \"memory size 0x\" RAM_ADDR_FMT \" must be equal to \"\n\n \"or larger than page size 0x%zx\",\n\n memory, block->page_size);\n\n goto error;\n\n }\n\n\n\n if (file_size > 0 && file_size < memory) {\n\n error_setg(errp, \"backing store %s size 0x%\" PRIx64\n\n \" does not match 'size' option 0x\" RAM_ADDR_FMT,\n\n path, file_size, memory);\n\n goto error;\n\n }\n\n\n\n memory = ROUND_UP(memory, block->page_size);\n\n\n\n /*\n\n * ftruncate is not supported by hugetlbfs in older\n\n * hosts, so don't bother bailing out on errors.\n\n * If anything goes wrong with it under other filesystems,\n\n * mmap will fail.\n\n *\n\n * Do not truncate the non-empty backend file to avoid corrupting\n\n * the existing data in the file. Disabling shrinking is not\n\n * enough. For example, the current vNVDIMM implementation stores\n\n * the guest NVDIMM labels at the end of the backend file. If the\n\n * backend file is later extended, QEMU will not be able to find\n\n * those labels. Therefore, extending the non-empty backend file\n\n * is disabled as well.\n\n */\n\n if (!file_size && ftruncate(fd, memory)) {\n\n perror(\"ftruncate\");\n\n }\n\n\n\n area = qemu_ram_mmap(fd, memory, block->mr->align,\n\n block->flags & RAM_SHARED);\n\n if (area == MAP_FAILED) {\n\n error_setg_errno(errp, errno,\n\n \"unable to map backing store for guest RAM\");\n\n goto error;\n\n }\n\n\n\n if (mem_prealloc) {\n\n os_mem_prealloc(fd, area, memory, errp);\n\n if (errp && *errp) {\n\n goto error;\n\n }\n\n }\n\n\n\n block->fd = fd;\n\n return area;\n\n\n\nerror:\n\n if (area != MAP_FAILED) {\n\n qemu_ram_munmap(area, memory);\n\n }\n\n if (unlink_on_error) {\n\n unlink(path);\n\n }\n\n if (fd != -1) {\n\n close(fd);\n\n }\n\n return NULL;\n\n}\n", + "output": "1", + "index": 5163 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "void main_loop_wait(int timeout)\n\n{\n\n IOHandlerRecord *ioh;\n\n fd_set rfds, wfds, xfds;\n\n int ret, nfds;\n\n#ifdef _WIN32\n\n int ret2, i;\n\n#endif\n\n struct timeval tv;\n\n PollingEntry *pe;\n\n\n\n\n\n /* XXX: need to suppress polling by better using win32 events */\n\n ret = 0;\n\n for(pe = first_polling_entry; pe != NULL; pe = pe->next) {\n\n ret |= pe->func(pe->opaque);\n\n }\n\n#ifdef _WIN32\n\n if (ret == 0) {\n\n int err;\n\n WaitObjects *w = &wait_objects;\n\n\n\n ret = WaitForMultipleObjects(w->num, w->events, FALSE, timeout);\n\n if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {\n\n if (w->func[ret - WAIT_OBJECT_0])\n\n w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);\n\n\n\n /* Check for additional signaled events */\n\n for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {\n\n\n\n /* Check if event is signaled */\n\n ret2 = WaitForSingleObject(w->events[i], 0);\n\n if(ret2 == WAIT_OBJECT_0) {\n\n if (w->func[i])\n\n w->func[i](w->opaque[i]);\n\n } else if (ret2 == WAIT_TIMEOUT) {\n\n } else {\n\n err = GetLastError();\n\n fprintf(stderr, \"WaitForSingleObject error %d %d\\n\", i, err);\n\n }\n\n }\n\n } else if (ret == WAIT_TIMEOUT) {\n\n } else {\n\n err = GetLastError();\n\n fprintf(stderr, \"WaitForMultipleObjects error %d %d\\n\", ret, err);\n\n }\n\n }\n\n#endif\n\n /* poll any events */\n\n /* XXX: separate device handlers from system ones */\n\n nfds = -1;\n\n FD_ZERO(&rfds);\n\n FD_ZERO(&wfds);\n\n FD_ZERO(&xfds);\n\n for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {\n\n if (ioh->deleted)\n\n continue;\n\n if (ioh->fd_read &&\n\n (!ioh->fd_read_poll ||\n\n ioh->fd_read_poll(ioh->opaque) != 0)) {\n\n FD_SET(ioh->fd, &rfds);\n\n if (ioh->fd > nfds)\n\n nfds = ioh->fd;\n\n }\n\n if (ioh->fd_write) {\n\n FD_SET(ioh->fd, &wfds);\n\n if (ioh->fd > nfds)\n\n nfds = ioh->fd;\n\n }\n\n }\n\n\n\n tv.tv_sec = 0;\n\n#ifdef _WIN32\n\n tv.tv_usec = 0;\n\n#else\n\n tv.tv_usec = timeout * 1000;\n\n#endif\n\n#if defined(CONFIG_SLIRP)\n\n if (slirp_inited) {\n\n slirp_select_fill(&nfds, &rfds, &wfds, &xfds);\n\n }\n\n#endif\n\n ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);\n\n if (ret > 0) {\n\n IOHandlerRecord **pioh;\n\n\n\n for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {\n\n if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {\n\n ioh->fd_read(ioh->opaque);\n\n }\n\n if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {\n\n ioh->fd_write(ioh->opaque);\n\n }\n\n }\n\n\n\n\t/* remove deleted IO handlers */\n\n\tpioh = &first_io_handler;\n\n\twhile (*pioh) {\n\n ioh = *pioh;\n\n if (ioh->deleted) {\n\n *pioh = ioh->next;\n\n qemu_free(ioh);\n\n } else\n\n pioh = &ioh->next;\n\n }\n\n }\n\n#if defined(CONFIG_SLIRP)\n\n if (slirp_inited) {\n\n if (ret < 0) {\n\n FD_ZERO(&rfds);\n\n FD_ZERO(&wfds);\n\n FD_ZERO(&xfds);\n\n }\n\n slirp_select_poll(&rfds, &wfds, &xfds);\n\n }\n\n#endif\n\n qemu_aio_poll();\n\n\n\n if (vm_running) {\n\n if (likely(!(cur_cpu->singlestep_enabled & SSTEP_NOTIMER)))\n\n qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL],\n\n qemu_get_clock(vm_clock));\n\n /* run dma transfers, if any */\n\n DMA_run();\n\n }\n\n\n\n /* real time timers */\n\n qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME],\n\n qemu_get_clock(rt_clock));\n\n\n\n if (alarm_timer->flags & ALARM_FLAG_EXPIRED) {\n\n alarm_timer->flags &= ~(ALARM_FLAG_EXPIRED);\n\n qemu_rearm_alarm_timer(alarm_timer);\n\n }\n\n\n\n /* Check bottom-halves last in case any of the earlier events triggered\n\n them. */\n\n qemu_bh_poll();\n\n\n\n}\n", + "output": "1", + "index": 13995 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int net_client_init(const char *str)\n\n{\n\n const char *p;\n\n char *q;\n\n char device[64];\n\n char buf[1024];\n\n int vlan_id, ret;\n\n VLANState *vlan;\n\n\n\n p = str;\n\n q = device;\n\n while (*p != '\\0' && *p != ',') {\n\n if ((q - device) < sizeof(device) - 1)\n\n *q++ = *p;\n\n p++;\n\n }\n\n *q = '\\0';\n\n if (*p == ',')\n\n p++;\n\n vlan_id = 0;\n\n if (get_param_value(buf, sizeof(buf), \"vlan\", p)) {\n\n vlan_id = strtol(buf, NULL, 0);\n\n }\n\n vlan = qemu_find_vlan(vlan_id);\n\n if (!vlan) {\n\n fprintf(stderr, \"Could not create vlan %d\\n\", vlan_id);\n\n return -1;\n\n }\n\n if (!strcmp(device, \"nic\")) {\n\n NICInfo *nd;\n\n uint8_t *macaddr;\n\n\n\n if (nb_nics >= MAX_NICS) {\n\n fprintf(stderr, \"Too Many NICs\\n\");\n\n return -1;\n\n }\n\n nd = &nd_table[nb_nics];\n\n macaddr = nd->macaddr;\n\n macaddr[0] = 0x52;\n\n macaddr[1] = 0x54;\n\n macaddr[2] = 0x00;\n\n macaddr[3] = 0x12;\n\n macaddr[4] = 0x34;\n\n macaddr[5] = 0x56 + nb_nics;\n\n\n\n if (get_param_value(buf, sizeof(buf), \"macaddr\", p)) {\n\n if (parse_macaddr(macaddr, buf) < 0) {\n\n fprintf(stderr, \"invalid syntax for ethernet address\\n\");\n\n return -1;\n\n }\n\n }\n\n if (get_param_value(buf, sizeof(buf), \"model\", p)) {\n\n nd->model = strdup(buf);\n\n }\n\n nd->vlan = vlan;\n\n nb_nics++;\n\n vlan->nb_guest_devs++;\n\n ret = 0;\n\n } else\n\n if (!strcmp(device, \"none\")) {\n\n /* does nothing. It is needed to signal that no network cards\n\n are wanted */\n\n ret = 0;\n\n } else\n\n#ifdef CONFIG_SLIRP\n\n if (!strcmp(device, \"user\")) {\n\n if (get_param_value(buf, sizeof(buf), \"hostname\", p)) {\n\n pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf);\n\n }\n\n\n ret = net_slirp_init(vlan);\n\n } else\n\n#endif\n\n#ifdef _WIN32\n\n if (!strcmp(device, \"tap\")) {\n\n char ifname[64];\n\n if (get_param_value(ifname, sizeof(ifname), \"ifname\", p) <= 0) {\n\n fprintf(stderr, \"tap: no interface name\\n\");\n\n return -1;\n\n }\n\n\n ret = tap_win32_init(vlan, ifname);\n\n } else\n\n#else\n\n if (!strcmp(device, \"tap\")) {\n\n char ifname[64];\n\n char setup_script[1024];\n\n int fd;\n\n if (get_param_value(buf, sizeof(buf), \"fd\", p) > 0) {\n\n fd = strtol(buf, NULL, 0);\n\n ret = -1;\n\n if (net_tap_fd_init(vlan, fd))\n\n ret = 0;\n\n } else {\n\n if (get_param_value(ifname, sizeof(ifname), \"ifname\", p) <= 0) {\n\n ifname[0] = '\\0';\n\n }\n\n if (get_param_value(setup_script, sizeof(setup_script), \"script\", p) == 0) {\n\n pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT);\n\n }\n\n\n ret = net_tap_init(vlan, ifname, setup_script);\n\n }\n\n } else\n\n#endif\n\n if (!strcmp(device, \"socket\")) {\n\n if (get_param_value(buf, sizeof(buf), \"fd\", p) > 0) {\n\n int fd;\n\n fd = strtol(buf, NULL, 0);\n\n ret = -1;\n\n if (net_socket_fd_init(vlan, fd, 1))\n\n ret = 0;\n\n } else if (get_param_value(buf, sizeof(buf), \"listen\", p) > 0) {\n\n ret = net_socket_listen_init(vlan, buf);\n\n } else if (get_param_value(buf, sizeof(buf), \"connect\", p) > 0) {\n\n ret = net_socket_connect_init(vlan, buf);\n\n } else if (get_param_value(buf, sizeof(buf), \"mcast\", p) > 0) {\n\n ret = net_socket_mcast_init(vlan, buf);\n\n } else {\n\n fprintf(stderr, \"Unknown socket options: %s\\n\", p);\n\n return -1;\n\n }\n\n\n } else\n\n {\n\n fprintf(stderr, \"Unknown network device: %s\\n\", device);\n\n return -1;\n\n }\n\n if (ret < 0) {\n\n fprintf(stderr, \"Could not initialize device '%s'\\n\", device);\n\n }\n\n \n\n return ret;\n\n}", + "output": "1", + "index": 26374 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void gic_dist_writeb(void *opaque, target_phys_addr_t offset,\n\n uint32_t value)\n\n{\n\n GICState *s = (GICState *)opaque;\n\n int irq;\n\n int i;\n\n int cpu;\n\n\n\n cpu = gic_get_current_cpu(s);\n\n if (offset < 0x100) {\n\n if (offset == 0) {\n\n s->enabled = (value & 1);\n\n DPRINTF(\"Distribution %sabled\\n\", s->enabled ? \"En\" : \"Dis\");\n\n } else if (offset < 4) {\n\n /* ignored. */\n\n } else if (offset >= 0x80) {\n\n /* Interrupt Security Registers, RAZ/WI */\n\n } else {\n\n goto bad_reg;\n\n }\n\n } else if (offset < 0x180) {\n\n /* Interrupt Set Enable. */\n\n irq = (offset - 0x100) * 8 + GIC_BASE_IRQ;\n\n if (irq >= s->num_irq)\n\n goto bad_reg;\n\n if (irq < 16)\n\n value = 0xff;\n\n for (i = 0; i < 8; i++) {\n\n if (value & (1 << i)) {\n\n int mask = (irq < GIC_INTERNAL) ? (1 << cpu) : GIC_TARGET(irq);\n\n int cm = (irq < GIC_INTERNAL) ? (1 << cpu) : ALL_CPU_MASK;\n\n\n\n if (!GIC_TEST_ENABLED(irq + i, cm)) {\n\n DPRINTF(\"Enabled IRQ %d\\n\", irq + i);\n\n }\n\n GIC_SET_ENABLED(irq + i, cm);\n\n /* If a raised level triggered IRQ enabled then mark\n\n is as pending. */\n\n if (GIC_TEST_LEVEL(irq + i, mask)\n\n && !GIC_TEST_TRIGGER(irq + i)) {\n\n DPRINTF(\"Set %d pending mask %x\\n\", irq + i, mask);\n\n GIC_SET_PENDING(irq + i, mask);\n\n }\n\n }\n\n }\n\n } else if (offset < 0x200) {\n\n /* Interrupt Clear Enable. */\n\n irq = (offset - 0x180) * 8 + GIC_BASE_IRQ;\n\n if (irq >= s->num_irq)\n\n goto bad_reg;\n\n if (irq < 16)\n\n value = 0;\n\n for (i = 0; i < 8; i++) {\n\n if (value & (1 << i)) {\n\n int cm = (irq < GIC_INTERNAL) ? (1 << cpu) : ALL_CPU_MASK;\n\n\n\n if (GIC_TEST_ENABLED(irq + i, cm)) {\n\n DPRINTF(\"Disabled IRQ %d\\n\", irq + i);\n\n }\n\n GIC_CLEAR_ENABLED(irq + i, cm);\n\n }\n\n }\n\n } else if (offset < 0x280) {\n\n /* Interrupt Set Pending. */\n\n irq = (offset - 0x200) * 8 + GIC_BASE_IRQ;\n\n if (irq >= s->num_irq)\n\n goto bad_reg;\n\n if (irq < 16)\n\n irq = 0;\n\n\n\n for (i = 0; i < 8; i++) {\n\n if (value & (1 << i)) {\n\n GIC_SET_PENDING(irq + i, GIC_TARGET(irq));\n\n }\n\n }\n\n } else if (offset < 0x300) {\n\n /* Interrupt Clear Pending. */\n\n irq = (offset - 0x280) * 8 + GIC_BASE_IRQ;\n\n if (irq >= s->num_irq)\n\n goto bad_reg;\n\n for (i = 0; i < 8; i++) {\n\n /* ??? This currently clears the pending bit for all CPUs, even\n\n for per-CPU interrupts. It's unclear whether this is the\n\n corect behavior. */\n\n if (value & (1 << i)) {\n\n GIC_CLEAR_PENDING(irq + i, ALL_CPU_MASK);\n\n }\n\n }\n\n } else if (offset < 0x400) {\n\n /* Interrupt Active. */\n\n goto bad_reg;\n\n } else if (offset < 0x800) {\n\n /* Interrupt Priority. */\n\n irq = (offset - 0x400) + GIC_BASE_IRQ;\n\n if (irq >= s->num_irq)\n\n goto bad_reg;\n\n if (irq < GIC_INTERNAL) {\n\n s->priority1[irq][cpu] = value;\n\n } else {\n\n s->priority2[irq - GIC_INTERNAL] = value;\n\n }\n\n } else if (offset < 0xc00) {\n\n /* Interrupt CPU Target. RAZ/WI on uniprocessor GICs, with the\n\n * annoying exception of the 11MPCore's GIC.\n\n */\n\n if (s->num_cpu != 1 || s->revision == REV_11MPCORE) {\n\n irq = (offset - 0x800) + GIC_BASE_IRQ;\n\n if (irq >= s->num_irq) {\n\n goto bad_reg;\n\n }\n\n if (irq < 29) {\n\n value = 0;\n\n } else if (irq < GIC_INTERNAL) {\n\n value = ALL_CPU_MASK;\n\n }\n\n s->irq_target[irq] = value & ALL_CPU_MASK;\n\n }\n\n } else if (offset < 0xf00) {\n\n /* Interrupt Configuration. */\n\n irq = (offset - 0xc00) * 4 + GIC_BASE_IRQ;\n\n if (irq >= s->num_irq)\n\n goto bad_reg;\n\n if (irq < GIC_INTERNAL)\n\n value |= 0xaa;\n\n for (i = 0; i < 4; i++) {\n\n if (value & (1 << (i * 2))) {\n\n GIC_SET_MODEL(irq + i);\n\n } else {\n\n GIC_CLEAR_MODEL(irq + i);\n\n }\n\n if (value & (2 << (i * 2))) {\n\n GIC_SET_TRIGGER(irq + i);\n\n } else {\n\n GIC_CLEAR_TRIGGER(irq + i);\n\n }\n\n }\n\n } else {\n\n /* 0xf00 is only handled for 32-bit writes. */\n\n goto bad_reg;\n\n }\n\n gic_update(s);\n\n return;\n\nbad_reg:\n\n hw_error(\"gic_dist_writeb: Bad offset %x\\n\", (int)offset);\n\n}\n", + "output": "0", + "index": 22190 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void dct_unquantize_mpeg1_mmx(MpegEncContext *s,\n\n DCTELEM *block, int n, int qscale)\n\n{\n\n int i, level;\n\n const UINT16 *quant_matrix;\n\n if (s->mb_intra) {\n\n if (n < 4) \n\n block[0] = block[0] * s->y_dc_scale;\n\n else\n\n block[0] = block[0] * s->c_dc_scale;\n\n if (s->out_format == FMT_H263) {\n\n i = 1;\n\n goto unquant_even;\n\n }\n\n /* XXX: only mpeg1 */\n\n quant_matrix = s->intra_matrix;\n\n\ti=1;\n\n\t/* Align on 4 elements boundary */\n\n\twhile(i&3)\n\n\t{\n\n level = block[i];\n\n if (level) {\n\n if (level < 0) level = -level;\n\n level = (int)(level * qscale * quant_matrix[i]) >> 3;\n\n level = (level - 1) | 1;\n\n if (block[i] < 0) level = -level;\n\n block[i] = level;\n\n }\n\n\t i++;\n\n\t}\n\n\t__asm __volatile(\n\n\t\"movd\t%0, %%mm6\\n\\t\" /* mm6 = qscale | 0 */\n\n\t\"punpckldq %%mm6, %%mm6\\n\\t\" /* mm6 = qscale | qscale */\n\n\t\"movq\t%2, %%mm4\\n\\t\"\n\n\t\"movq\t%%mm6, %%mm7\\n\\t\"\n\n\t\"movq\t%1, %%mm5\\n\\t\"\n\n\t\"packssdw %%mm6, %%mm7\\n\\t\" /* mm7 = qscale | qscale | qscale | qscale */\n\n\t\"pxor\t%%mm6, %%mm6\\n\\t\"\n\n\t::\"g\"(qscale),\"m\"(mm_wone),\"m\"(mm_wabs):\"memory\");\n\n for(;i<64;i+=4) {\n\n\t\t__asm __volatile(\n\n\t\t\t\"movq\t%1, %%mm0\\n\\t\"\n\n\t\t\t\"movq\t%%mm7, %%mm1\\n\\t\"\n\n\t\t\t\"movq\t%%mm0, %%mm2\\n\\t\"\n\n\t\t\t\"movq\t%%mm0, %%mm3\\n\\t\"\n\n\t\t\t\"pcmpgtw %%mm6, %%mm2\\n\\t\"\n\n\t\t\t\"pmullw\t%2, %%mm1\\n\\t\"\n\n\t\t\t\"pandn\t%%mm4, %%mm2\\n\\t\"\n\n\t\t\t\"por\t%%mm5, %%mm2\\n\\t\"\n\n\t\t\t\"pmullw\t%%mm2, %%mm0\\n\\t\" /* mm0 = abs(block[i]). */\n\n\n\n\t\t\t\"pcmpeqw %%mm6, %%mm3\\n\\t\"\n\n\t\t\t\"pmullw\t%%mm0, %%mm1\\n\\t\"\n\n\t\t\t\"psraw\t$3, %%mm1\\n\\t\"\n\n\t\t\t\"psubw\t%%mm5, %%mm1\\n\\t\" /* block[i] --; */\n\n\t\t\t\"pandn\t%%mm4, %%mm3\\n\\t\" /* fake of pcmpneqw : mm0 != 0 then mm1 = -1 */\n\n\t\t\t\"por\t%%mm5, %%mm1\\n\\t\" /* block[i] |= 1 */\n\n\t\t\t\"pmullw %%mm2, %%mm1\\n\\t\" /* change signs again */\n\n\n\n\t\t\t\"pand\t%%mm3, %%mm1\\n\\t\" /* nullify if was zero */\n\n\t\t\t\"movq\t%%mm1, %0\"\n\n\t\t\t:\"=m\"(block[i])\n\n\t\t\t:\"m\"(block[i]), \"m\"(quant_matrix[i])\n\n\t\t\t:\"memory\");\n\n }\n\n } else {\n\n i = 0;\n\n unquant_even:\n\n quant_matrix = s->non_intra_matrix;\n\n\t/* Align on 4 elements boundary */\n\n\twhile(i&7)\n\n\t{\n\n\t level = block[i];\n\n if (level) {\n\n if (level < 0) level = -level;\n\n level = (((level << 1) + 1) * qscale *\n\n ((int) quant_matrix[i])) >> 4;\n\n level = (level - 1) | 1;\n\n if(block[i] < 0) level = -level;\n\n block[i] = level;\n\n\t }\n\n\t i++;\n\n\t}\n\n\n\nasm volatile(\n\n\t\t\"pcmpeqw %%mm7, %%mm7\t\t\\n\\t\"\n\n\t\t\"psrlw $15, %%mm7\t\t\\n\\t\"\n\n\t\t\"movd %2, %%mm6\t\t\t\\n\\t\"\n\n\t\t\"packssdw %%mm6, %%mm6\t\t\\n\\t\"\n\n\t\t\"packssdw %%mm6, %%mm6\t\t\\n\\t\"\n\n\t\t\"1:\t\t\t\t\\n\\t\"\n\n\t\t\"movq (%0, %3), %%mm0\t\t\\n\\t\"\n\n\t\t\"movq 8(%0, %3), %%mm1\t\t\\n\\t\"\n\n\t\t\"movq (%1, %3), %%mm4\t\t\\n\\t\"\n\n\t\t\"movq 8(%1, %3), %%mm5\t\t\\n\\t\"\n\n\t\t\"pmullw %%mm6, %%mm4\t\t\\n\\t\" // q=qscale*quant_matrix[i]\n\n\t\t\"pmullw %%mm6, %%mm5\t\t\\n\\t\" // q=qscale*quant_matrix[i]\n\n\t\t\"pxor %%mm2, %%mm2\t\t\\n\\t\"\n\n\t\t\"pxor %%mm3, %%mm3\t\t\\n\\t\"\n\n\t\t\"pcmpgtw %%mm0, %%mm2\t\t\\n\\t\" // block[i] < 0 ? -1 : 0\n\n\t\t\"pcmpgtw %%mm1, %%mm3\t\t\\n\\t\" // block[i] < 0 ? -1 : 0\n\n\t\t\"pxor %%mm2, %%mm0\t\t\\n\\t\"\n\n\t\t\"pxor %%mm3, %%mm1\t\t\\n\\t\"\n\n\t\t\"psubw %%mm2, %%mm0\t\t\\n\\t\" // abs(block[i])\n\n\t\t\"psubw %%mm3, %%mm1\t\t\\n\\t\" // abs(block[i])\n\n\t\t\"paddw %%mm0, %%mm0\t\t\\n\\t\" // abs(block[i])*2\n\n\t\t\"paddw %%mm1, %%mm1\t\t\\n\\t\" // abs(block[i])*2\n\n\t\t\"paddw %%mm7, %%mm0\t\t\\n\\t\" // abs(block[i])*2 + 1\n\n\t\t\"paddw %%mm7, %%mm1\t\t\\n\\t\" // abs(block[i])*2 + 1\n\n\t\t\"pmullw %%mm4, %%mm0\t\t\\n\\t\" // (abs(block[i])*2 + 1)*q\n\n\t\t\"pmullw %%mm5, %%mm1\t\t\\n\\t\" // (abs(block[i])*2 + 1)*q\n\n\t\t\"pxor %%mm4, %%mm4\t\t\\n\\t\"\n\n\t\t\"pxor %%mm5, %%mm5\t\t\\n\\t\" // FIXME slow\n\n\t\t\"pcmpeqw (%0, %3), %%mm4\t\\n\\t\" // block[i] == 0 ? -1 : 0\n\n\t\t\"pcmpeqw 8(%0, %3), %%mm5\t\\n\\t\" // block[i] == 0 ? -1 : 0\n\n\t\t\"psraw $4, %%mm0\t\t\\n\\t\"\n\n\t\t\"psraw $4, %%mm1\t\t\\n\\t\"\n\n\t\t\"psubw %%mm7, %%mm0\t\t\\n\\t\"\n\n\t\t\"psubw %%mm7, %%mm1\t\t\\n\\t\"\n\n\t\t\"por %%mm7, %%mm0\t\t\\n\\t\"\n\n\t\t\"por %%mm7, %%mm1\t\t\\n\\t\"\n\n\t\t\"pxor %%mm2, %%mm0\t\t\\n\\t\"\n\n\t\t\"pxor %%mm3, %%mm1\t\t\\n\\t\"\n\n\t\t\"psubw %%mm2, %%mm0\t\t\\n\\t\"\n\n\t\t\"psubw %%mm3, %%mm1\t\t\\n\\t\"\n\n\t\t\"pandn %%mm0, %%mm4\t\t\\n\\t\"\n\n\t\t\"pandn %%mm1, %%mm5\t\t\\n\\t\"\n\n\t\t\"movq %%mm4, (%0, %3)\t\t\\n\\t\"\n\n\t\t\"movq %%mm5, 8(%0, %3)\t\t\\n\\t\"\n\n\n\n\t\t\"addl $16, %3\t\t\t\\n\\t\"\n\n\t\t\"cmpl $128, %3\t\t\t\\n\\t\"\n\n\t\t\"jb 1b\t\t\t\t\\n\\t\"\n\n\t\t::\"r\" (block), \"r\"(quant_matrix), \"g\" (qscale), \"r\" (2*i)\n\n\t\t: \"memory\"\n\n\t);\n\n\n\n#if 0\n\n\t__asm __volatile(\n\n\t\"movd\t%0, %%mm6\\n\\t\" /* mm6 = qscale | 0 */\n\n\t\"punpckldq %%mm6, %%mm6\\n\\t\" /* mm6 = qscale | qscale */\n\n\t\"movq\t%2, %%mm4\\n\\t\"\n\n\t\"movq\t%%mm6, %%mm7\\n\\t\"\n\n\t\"movq\t%1, %%mm5\\n\\t\"\n\n\t\"packssdw %%mm6, %%mm7\\n\\t\" /* mm7 = qscale | qscale | qscale | qscale */\n\n\t\"pxor\t%%mm6, %%mm6\\n\\t\"\n\n\t::\"g\"(qscale),\"m\"(mm_wone),\"m\"(mm_wabs));\n\n for(;i<64;i+=4) {\n\n\t\t__asm __volatile(\n\n\t\t\t\"movq\t%1, %%mm0\\n\\t\"\n\n\t\t\t\"movq\t%%mm7, %%mm1\\n\\t\"\n\n\t\t\t\"movq\t%%mm0, %%mm2\\n\\t\"\n\n\t\t\t\"movq\t%%mm0, %%mm3\\n\\t\"\n\n\t\t\t\"pcmpgtw %%mm6, %%mm2\\n\\t\"\n\n\t\t\t\"pmullw\t%2, %%mm1\\n\\t\"\n\n\t\t\t\"pandn\t%%mm4, %%mm2\\n\\t\"\n\n\t\t\t\"por\t%%mm5, %%mm2\\n\\t\"\n\n\t\t\t\"pmullw\t%%mm2, %%mm0\\n\\t\" /* mm0 = abs(block[i]). */\n\n\t\t\t\"psllw\t$1, %%mm0\\n\\t\" /* block[i] <<= 1 */\n\n\t\t\t\"paddw\t%%mm5, %%mm0\\n\\t\" /* block[i] ++ */\n\n\n\n\t\t\t\"pmullw\t%%mm0, %%mm1\\n\\t\"\n\n\t\t\t\"psraw\t$4, %%mm1\\n\\t\"\n\n\t\t\t\"pcmpeqw %%mm6, %%mm3\\n\\t\"\n\n\t\t\t\"psubw\t%%mm5, %%mm1\\n\\t\" /* block[i] --; */\n\n\t\t\t\"pandn\t%%mm4, %%mm3\\n\\t\" /* fake of pcmpneqw : mm0 != 0 then mm1 = -1 */\n\n\t\t\t\"por\t%%mm5, %%mm1\\n\\t\" /* block[i] |= 1 */\n\n\t\t\t\"pmullw %%mm2, %%mm1\\n\\t\" /* change signs again */\n\n\n\n\t\t\t\"pand\t%%mm3, %%mm1\\n\\t\" /* nullify if was zero */\n\n\t\t\t\"movq\t%%mm1, %0\"\n\n\t\t\t:\"=m\"(block[i])\n\n\t\t\t:\"m\"(block[i]), \"m\"(quant_matrix[i]));\n\n }\n\n#endif\n\n }\n\n}\n", + "output": "0", + "index": 400 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static inline int RENAME(yuv420_rgb16)(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,\n\n int srcSliceH, uint8_t* dst[], int dstStride[]){\n\n int y, h_size;\n\n\n\n if(c->srcFormat == PIX_FMT_YUV422P){\n\n\tsrcStride[1] *= 2;\n\n\tsrcStride[2] *= 2;\n\n }\n\n\n\n h_size= (c->dstW+7)&~7;\n\n if(h_size*2 > FFABS(dstStride[0])) h_size-=8;\n\n\n\n __asm__ __volatile__ (\"pxor %mm4, %mm4;\" /* zero mm4 */ );\n\n//printf(\"%X %X %X %X %X %X %X %X %X %X\\n\", (int)&c->redDither, (int)&b5Dither, (int)src[0], (int)src[1], (int)src[2], (int)dst[0],\n\n//srcStride[0],srcStride[1],srcStride[2],dstStride[0]);\n\n for (y= 0; y>1)*srcStride[1];\n\n\tuint8_t *_pv = src[2] + (y>>1)*srcStride[2];\n\n\tlong index= -h_size/2;\n\n\n\n\tb5Dither= dither8[y&1];\n\n\tg6Dither= dither4[y&1];\n\n\tg5Dither= dither8[y&1];\n\n\tr5Dither= dither8[(y+1)&1];\n\n\t /* this mmx assembly code deals with SINGLE scan line at a time, it convert 8\n\n\t pixels in each iteration */\n\n\t __asm__ __volatile__ (\n\n\t/* load data for start of next scan line */\n\n\t\t \"movd (%2, %0), %%mm0;\" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */\n\n\t\t \"movd (%3, %0), %%mm1;\" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */\n\n\t\t \"movq (%5, %0, 2), %%mm6;\" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */\n\n//\t\t \".balign 16\t\t\t\\n\\t\"\n\n\t\t \"1:\t\t\t\t\\n\\t\"\n\n/* no speed diference on my p3@500 with prefetch,\n\n * if it is faster for anyone with -benchmark then tell me\n\n\t\t\tPREFETCH\" 64(%0) \\n\\t\"\n\n\t\t\tPREFETCH\" 64(%1) \\n\\t\"\n\n\t\t\tPREFETCH\" 64(%2) \\n\\t\"\n\n*/\n\nYUV2RGB\n\n\n\n#ifdef DITHER1XBPP\n\n\t\t\t\"paddusb \"MANGLE(b5Dither)\", %%mm0;\"\n\n\t\t\t\"paddusb \"MANGLE(g6Dither)\", %%mm2;\"\n\n\t\t\t\"paddusb \"MANGLE(r5Dither)\", %%mm1;\"\n\n#endif\n\n\t\t /* mask unneeded bits off */\n\n\t\t \"pand \"MANGLE(mmx_redmask)\", %%mm0;\" /* b7b6b5b4 b3_0_0_0 b7b6b5b4 b3_0_0_0 */\n\n\t\t \"pand \"MANGLE(mmx_grnmask)\", %%mm2;\" /* g7g6g5g4 g3g2_0_0 g7g6g5g4 g3g2_0_0 */\n\n\t\t \"pand \"MANGLE(mmx_redmask)\", %%mm1;\" /* r7r6r5r4 r3_0_0_0 r7r6r5r4 r3_0_0_0 */\n\n\n\n\t\t \"psrlw $3,%%mm0;\" /* 0_0_0_b7 b6b5b4b3 0_0_0_b7 b6b5b4b3 */\n\n\t\t \"pxor %%mm4, %%mm4;\" /* zero mm4 */\n\n\n\n\t\t \"movq %%mm0, %%mm5;\" /* Copy B7-B0 */\n\n\t\t \"movq %%mm2, %%mm7;\" /* Copy G7-G0 */\n\n\n\n\t\t /* convert rgb24 plane to rgb16 pack for pixel 0-3 */\n\n\t\t \"punpcklbw %%mm4, %%mm2;\" /* 0_0_0_0 0_0_0_0 g7g6g5g4 g3g2_0_0 */\n\n\t\t \"punpcklbw %%mm1, %%mm0;\" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */\n\n\n\n\t\t \"psllw $3, %%mm2;\" /* 0_0_0_0 0_g7g6g5 g4g3g2_0 0_0_0_0 */\n\n\t\t \"por %%mm2, %%mm0;\" /* r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3 */\n\n\n\n\t\t \"movq 8 (%5, %0, 2), %%mm6;\" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */\n\n\t\t MOVNTQ \" %%mm0, (%1);\" /* store pixel 0-3 */\n\n\n\n\t\t /* convert rgb24 plane to rgb16 pack for pixel 0-3 */\n\n\t\t \"punpckhbw %%mm4, %%mm7;\" /* 0_0_0_0 0_0_0_0 g7g6g5g4 g3g2_0_0 */\n\n\t\t \"punpckhbw %%mm1, %%mm5;\" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */\n\n\n\n\t\t \"psllw $3, %%mm7;\" /* 0_0_0_0 0_g7g6g5 g4g3g2_0 0_0_0_0 */\n\n\t\t \"movd 4 (%2, %0), %%mm0;\" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */\n\n\n\n\t\t \"por %%mm7, %%mm5;\" /* r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3 */\n\n\t\t \"movd 4 (%3, %0), %%mm1;\" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */\n\n\n\n\t\t MOVNTQ \" %%mm5, 8 (%1);\" /* store pixel 4-7 */\n\n\n\n\t\t \"add $16, %1\t\t\t\\n\\t\"\n\n\t\t \"add $4, %0\t\t\t\\n\\t\"\n\n\t\t \" js 1b\t\t\t\t\\n\\t\"\n\n\n\n\t\t : \"+r\" (index), \"+r\" (_image)\n\n\t\t : \"r\" (_pu - index), \"r\" (_pv - index), \"r\"(&c->redDither), \"r\" (_py - 2*index)\n\n\t\t );\n\n }\n\n\n\n __asm__ __volatile__ (EMMS);\n\n\n\n return srcSliceH;\n\n}\n", + "output": "1", + "index": 9109 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int ff_mjpeg_decode_sos(MJpegDecodeContext *s)\n\n{\n\n int len, nb_components, i, h, v, predictor, point_transform;\n\n int index, id;\n\n const int block_size= s->lossless ? 1 : 8;\n\n int ilv, prev_shift;\n\n\n\n /* XXX: verify len field validity */\n\n len = get_bits(&s->gb, 16);\n\n nb_components = get_bits(&s->gb, 8);\n\n\n\n\n\n if (len != 6+2*nb_components)\n\n {\n\n av_log(s->avctx, AV_LOG_ERROR, \"decode_sos: invalid len (%d)\\n\", len);\n\n\n\n for(i=0;igb, 8) - 1;\n\n av_log(s->avctx, AV_LOG_DEBUG, \"component: %d\\n\", id);\n\n /* find component index */\n\n for(index=0;indexnb_components;index++)\n\n if (id == s->component_id[index])\n\n break;\n\n if (index == s->nb_components)\n\n {\n\n av_log(s->avctx, AV_LOG_ERROR, \"decode_sos: index(%d) out of components\\n\", index);\n\n\n\n\n\n s->comp_index[i] = index;\n\n\n\n s->nb_blocks[i] = s->h_count[index] * s->v_count[index];\n\n s->h_scount[i] = s->h_count[index];\n\n s->v_scount[i] = s->v_count[index];\n\n\n\n s->dc_index[i] = get_bits(&s->gb, 4);\n\n s->ac_index[i] = get_bits(&s->gb, 4);\n\n\n\n if (s->dc_index[i] < 0 || s->ac_index[i] < 0 ||\n\n s->dc_index[i] >= 4 || s->ac_index[i] >= 4)\n\n goto out_of_range;\n\n if (!s->vlcs[0][s->dc_index[i]].table || !s->vlcs[1][s->ac_index[i]].table)\n\n goto out_of_range;\n\n\n\n\n predictor= get_bits(&s->gb, 8); /* JPEG Ss / lossless JPEG predictor /JPEG-LS NEAR */\n\n ilv= get_bits(&s->gb, 8); /* JPEG Se / JPEG-LS ILV */\n\n prev_shift = get_bits(&s->gb, 4); /* Ah */\n\n point_transform= get_bits(&s->gb, 4); /* Al */\n\n\n\n for(i=0;ilast_dc[i] = 1024;\n\n\n\n if (nb_components > 1) {\n\n /* interleaved stream */\n\n s->mb_width = (s->width + s->h_max * block_size - 1) / (s->h_max * block_size);\n\n s->mb_height = (s->height + s->v_max * block_size - 1) / (s->v_max * block_size);\n\n } else if(!s->ls) { /* skip this for JPEG-LS */\n\n h = s->h_max / s->h_scount[0];\n\n v = s->v_max / s->v_scount[0];\n\n s->mb_width = (s->width + h * block_size - 1) / (h * block_size);\n\n s->mb_height = (s->height + v * block_size - 1) / (v * block_size);\n\n s->nb_blocks[0] = 1;\n\n s->h_scount[0] = 1;\n\n s->v_scount[0] = 1;\n\n\n\n\n if(s->avctx->debug & FF_DEBUG_PICT_INFO)\n\n av_log(s->avctx, AV_LOG_DEBUG, \"%s %s p:%d >>:%d ilv:%d bits:%d %s\\n\", s->lossless ? \"lossless\" : \"sequencial DCT\", s->rgb ? \"RGB\" : \"\",\n\n predictor, point_transform, ilv, s->bits,\n\n s->pegasus_rct ? \"PRCT\" : (s->rct ? \"RCT\" : \"\"));\n\n\n\n\n\n /* mjpeg-b can have padding bytes between sos and image data, skip them */\n\n for (i = s->mjpb_skiptosod; i > 0; i--)\n\n skip_bits(&s->gb, 8);\n\n\n\n if(s->lossless){\n\n if(CONFIG_JPEGLS_DECODER && s->ls){\n\n// for(){\n\n// reset_ls_coding_parameters(s, 0);\n\n\n\n if(ff_jpegls_decode_picture(s, predictor, point_transform, ilv) < 0)\n\n\n }else{\n\n if(s->rgb){\n\n if(ljpeg_decode_rgb_scan(s, predictor, point_transform) < 0)\n\n\n }else{\n\n if(ljpeg_decode_yuv_scan(s, predictor, point_transform) < 0)\n\n\n\n\n }else{\n\n if(s->progressive && predictor) {\n\n if(mjpeg_decode_scan_progressive_ac(s, predictor, ilv, prev_shift, point_transform) < 0)\n\n\n } else {\n\n if(mjpeg_decode_scan(s, nb_components, prev_shift, point_transform) < 0)\n\n\n\n\n emms_c();\n\n return 0;\n\n out_of_range:\n\n av_log(s->avctx, AV_LOG_ERROR, \"decode_sos: ac/dc index out of range\\n\");\n\n", + "output": "1", + "index": 19613 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void *migration_thread(void *opaque)\n\n{\n\n MigrationState *s = opaque;\n\n /* Used by the bandwidth calcs, updated later */\n\n int64_t initial_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);\n\n int64_t setup_start = qemu_clock_get_ms(QEMU_CLOCK_HOST);\n\n int64_t initial_bytes = 0;\n\n int64_t max_size = 0;\n\n int64_t start_time = initial_time;\n\n int64_t end_time;\n\n bool old_vm_running = false;\n\n bool entered_postcopy = false;\n\n /* The active state we expect to be in; ACTIVE or POSTCOPY_ACTIVE */\n\n enum MigrationStatus current_active_state = MIGRATION_STATUS_ACTIVE;\n\n\n\n rcu_register_thread();\n\n\n\n qemu_savevm_state_header(s->to_dst_file);\n\n\n\n if (migrate_postcopy_ram()) {\n\n /* Now tell the dest that it should open its end so it can reply */\n\n qemu_savevm_send_open_return_path(s->to_dst_file);\n\n\n\n /* And do a ping that will make stuff easier to debug */\n\n qemu_savevm_send_ping(s->to_dst_file, 1);\n\n\n\n /*\n\n * Tell the destination that we *might* want to do postcopy later;\n\n * if the other end can't do postcopy it should fail now, nice and\n\n * early.\n\n */\n\n qemu_savevm_send_postcopy_advise(s->to_dst_file);\n\n }\n\n\n\n qemu_savevm_state_begin(s->to_dst_file, &s->params);\n\n\n\n s->setup_time = qemu_clock_get_ms(QEMU_CLOCK_HOST) - setup_start;\n\n current_active_state = MIGRATION_STATUS_ACTIVE;\n\n migrate_set_state(&s->state, MIGRATION_STATUS_SETUP,\n\n MIGRATION_STATUS_ACTIVE);\n\n\n\n trace_migration_thread_setup_complete();\n\n\n\n while (s->state == MIGRATION_STATUS_ACTIVE ||\n\n s->state == MIGRATION_STATUS_POSTCOPY_ACTIVE) {\n\n int64_t current_time;\n\n uint64_t pending_size;\n\n\n\n if (!qemu_file_rate_limit(s->to_dst_file)) {\n\n uint64_t pend_post, pend_nonpost;\n\n\n\n qemu_savevm_state_pending(s->to_dst_file, max_size, &pend_nonpost,\n\n &pend_post);\n\n pending_size = pend_nonpost + pend_post;\n\n trace_migrate_pending(pending_size, max_size,\n\n pend_post, pend_nonpost);\n\n if (pending_size && pending_size >= max_size) {\n\n /* Still a significant amount to transfer */\n\n\n\n if (migrate_postcopy_ram() &&\n\n s->state != MIGRATION_STATUS_POSTCOPY_ACTIVE &&\n\n pend_nonpost <= max_size &&\n\n atomic_read(&s->start_postcopy)) {\n\n\n\n if (!postcopy_start(s, &old_vm_running)) {\n\n current_active_state = MIGRATION_STATUS_POSTCOPY_ACTIVE;\n\n entered_postcopy = true;\n\n }\n\n\n\n continue;\n\n }\n\n /* Just another iteration step */\n\n qemu_savevm_state_iterate(s->to_dst_file, entered_postcopy);\n\n } else {\n\n trace_migration_thread_low_pending(pending_size);\n\n migration_completion(s, current_active_state,\n\n &old_vm_running, &start_time);\n\n break;\n\n }\n\n }\n\n\n\n if (qemu_file_get_error(s->to_dst_file)) {\n\n migrate_set_state(&s->state, current_active_state,\n\n MIGRATION_STATUS_FAILED);\n\n trace_migration_thread_file_err();\n\n break;\n\n }\n\n current_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);\n\n if (current_time >= initial_time + BUFFER_DELAY) {\n\n uint64_t transferred_bytes = qemu_ftell(s->to_dst_file) -\n\n initial_bytes;\n\n uint64_t time_spent = current_time - initial_time;\n\n double bandwidth = (double)transferred_bytes / time_spent;\n\n max_size = bandwidth * migrate_max_downtime() / 1000000;\n\n\n\n s->mbps = (((double) transferred_bytes * 8.0) /\n\n ((double) time_spent / 1000.0)) / 1000.0 / 1000.0;\n\n\n\n trace_migrate_transferred(transferred_bytes, time_spent,\n\n bandwidth, max_size);\n\n /* if we haven't sent anything, we don't want to recalculate\n\n 10000 is a small enough number for our purposes */\n\n if (s->dirty_bytes_rate && transferred_bytes > 10000) {\n\n s->expected_downtime = s->dirty_bytes_rate / bandwidth;\n\n }\n\n\n\n qemu_file_reset_rate_limit(s->to_dst_file);\n\n initial_time = current_time;\n\n initial_bytes = qemu_ftell(s->to_dst_file);\n\n }\n\n if (qemu_file_rate_limit(s->to_dst_file)) {\n\n /* usleep expects microseconds */\n\n g_usleep((initial_time + BUFFER_DELAY - current_time)*1000);\n\n }\n\n }\n\n\n\n trace_migration_thread_after_loop();\n\n /* If we enabled cpu throttling for auto-converge, turn it off. */\n\n cpu_throttle_stop();\n\n end_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);\n\n\n\n qemu_mutex_lock_iothread();\n\n qemu_savevm_state_cleanup();\n\n if (s->state == MIGRATION_STATUS_COMPLETED) {\n\n uint64_t transferred_bytes = qemu_ftell(s->to_dst_file);\n\n s->total_time = end_time - s->total_time;\n\n if (!entered_postcopy) {\n\n s->downtime = end_time - start_time;\n\n }\n\n if (s->total_time) {\n\n s->mbps = (((double) transferred_bytes * 8.0) /\n\n ((double) s->total_time)) / 1000;\n\n }\n\n runstate_set(RUN_STATE_POSTMIGRATE);\n\n } else {\n\n if (old_vm_running && !entered_postcopy) {\n\n vm_start();\n\n } else {\n\n if (runstate_check(RUN_STATE_FINISH_MIGRATE)) {\n\n runstate_set(RUN_STATE_POSTMIGRATE);\n\n }\n\n }\n\n }\n\n qemu_bh_schedule(s->cleanup_bh);\n\n qemu_mutex_unlock_iothread();\n\n\n\n rcu_unregister_thread();\n\n return NULL;\n\n}\n", + "output": "0", + "index": 19574 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)\n\n{\n\n int ret = 0;\n\n AVDictionary *tmp = NULL;\n\n\n\n if (avcodec_is_open(avctx))\n\n return 0;\n\n\n\n if ((!codec && !avctx->codec)) {\n\n av_log(avctx, AV_LOG_ERROR, \"No codec provided to avcodec_open2()\\n\");\n\n return AVERROR(EINVAL);\n\n }\n\n if ((codec && avctx->codec && codec != avctx->codec)) {\n\n av_log(avctx, AV_LOG_ERROR, \"This AVCodecContext was allocated for %s, \"\n\n \"but %s passed to avcodec_open2()\\n\", avctx->codec->name, codec->name);\n\n return AVERROR(EINVAL);\n\n }\n\n if (!codec)\n\n codec = avctx->codec;\n\n\n\n if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)\n\n return AVERROR(EINVAL);\n\n\n\n if (options)\n\n av_dict_copy(&tmp, *options, 0);\n\n\n\n ret = ff_lock_avcodec(avctx);\n\n if (ret < 0)\n\n return ret;\n\n\n\n avctx->internal = av_mallocz(sizeof(AVCodecInternal));\n\n if (!avctx->internal) {\n\n ret = AVERROR(ENOMEM);\n\n goto end;\n\n }\n\n\n\n avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));\n\n if (!avctx->internal->pool) {\n\n ret = AVERROR(ENOMEM);\n\n goto free_and_end;\n\n }\n\n\n\n if (codec->priv_data_size > 0) {\n\n if (!avctx->priv_data) {\n\n avctx->priv_data = av_mallocz(codec->priv_data_size);\n\n if (!avctx->priv_data) {\n\n ret = AVERROR(ENOMEM);\n\n goto end;\n\n }\n\n if (codec->priv_class) {\n\n *(const AVClass **)avctx->priv_data = codec->priv_class;\n\n av_opt_set_defaults(avctx->priv_data);\n\n }\n\n }\n\n if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)\n\n goto free_and_end;\n\n } else {\n\n avctx->priv_data = NULL;\n\n }\n\n if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)\n\n goto free_and_end;\n\n\n\n //We only call avcodec_set_dimensions() for non h264 codecs so as not to overwrite previously setup dimensions\n\n if (!( avctx->coded_width && avctx->coded_height && avctx->width && avctx->height && avctx->codec_id == AV_CODEC_ID_H264)){\n\n\n\n if (avctx->coded_width && avctx->coded_height)\n\n avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);\n\n else if (avctx->width && avctx->height)\n\n avcodec_set_dimensions(avctx, avctx->width, avctx->height);\n\n }\n\n\n\n if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)\n\n && ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0\n\n || av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) {\n\n av_log(avctx, AV_LOG_WARNING, \"Ignoring invalid width/height values\\n\");\n\n avcodec_set_dimensions(avctx, 0, 0);\n\n }\n\n\n\n /* if the decoder init function was already called previously,\n\n * free the already allocated subtitle_header before overwriting it */\n\n if (av_codec_is_decoder(codec))\n\n av_freep(&avctx->subtitle_header);\n\n\n\n if (avctx->channels > FF_SANE_NB_CHANNELS) {\n\n ret = AVERROR(EINVAL);\n\n goto free_and_end;\n\n }\n\n\n\n avctx->codec = codec;\n\n if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&\n\n avctx->codec_id == AV_CODEC_ID_NONE) {\n\n avctx->codec_type = codec->type;\n\n avctx->codec_id = codec->id;\n\n }\n\n if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type\n\n && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {\n\n av_log(avctx, AV_LOG_ERROR, \"Codec type or id mismatches\\n\");\n\n ret = AVERROR(EINVAL);\n\n goto free_and_end;\n\n }\n\n avctx->frame_number = 0;\n\n avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);\n\n\n\n if (avctx->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&\n\n avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {\n\n const char *codec_string = av_codec_is_encoder(codec) ? \"encoder\" : \"decoder\";\n\n AVCodec *codec2;\n\n av_log(NULL, AV_LOG_ERROR,\n\n \"The %s '%s' is experimental but experimental codecs are not enabled, \"\n\n \"add '-strict %d' if you want to use it.\\n\",\n\n codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);\n\n codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);\n\n if (!(codec2->capabilities & CODEC_CAP_EXPERIMENTAL))\n\n av_log(NULL, AV_LOG_ERROR, \"Alternatively use the non experimental %s '%s'.\\n\",\n\n codec_string, codec2->name);\n\n ret = AVERROR_EXPERIMENTAL;\n\n goto free_and_end;\n\n }\n\n\n\n if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&\n\n (!avctx->time_base.num || !avctx->time_base.den)) {\n\n avctx->time_base.num = 1;\n\n avctx->time_base.den = avctx->sample_rate;\n\n }\n\n\n\n if (!HAVE_THREADS)\n\n av_log(avctx, AV_LOG_WARNING, \"Warning: not compiled with thread support, using thread emulation\\n\");\n\n\n\n if (HAVE_THREADS) {\n\n ff_unlock_avcodec(); //we will instanciate a few encoders thus kick the counter to prevent false detection of a problem\n\n ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);\n\n ff_lock_avcodec(avctx);\n\n if (ret < 0)\n\n goto free_and_end;\n\n }\n\n\n\n if (HAVE_THREADS && !avctx->thread_opaque\n\n && !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {\n\n ret = ff_thread_init(avctx);\n\n if (ret < 0) {\n\n goto free_and_end;\n\n }\n\n }\n\n if (!HAVE_THREADS && !(codec->capabilities & CODEC_CAP_AUTO_THREADS))\n\n avctx->thread_count = 1;\n\n\n\n if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"The maximum value for lowres supported by the decoder is %d\\n\",\n\n avctx->codec->max_lowres);\n\n ret = AVERROR(EINVAL);\n\n goto free_and_end;\n\n }\n\n\n\n if (av_codec_is_encoder(avctx->codec)) {\n\n int i;\n\n if (avctx->codec->sample_fmts) {\n\n for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {\n\n if (avctx->sample_fmt == avctx->codec->sample_fmts[i])\n\n break;\n\n if (avctx->channels == 1 &&\n\n av_get_planar_sample_fmt(avctx->sample_fmt) ==\n\n av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {\n\n avctx->sample_fmt = avctx->codec->sample_fmts[i];\n\n break;\n\n }\n\n }\n\n if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {\n\n char buf[128];\n\n snprintf(buf, sizeof(buf), \"%d\", avctx->sample_fmt);\n\n av_log(avctx, AV_LOG_ERROR, \"Specified sample format %s is invalid or not supported\\n\",\n\n (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));\n\n ret = AVERROR(EINVAL);\n\n goto free_and_end;\n\n }\n\n }\n\n if (avctx->codec->pix_fmts) {\n\n for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)\n\n if (avctx->pix_fmt == avctx->codec->pix_fmts[i])\n\n break;\n\n if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE\n\n && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)\n\n && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {\n\n char buf[128];\n\n snprintf(buf, sizeof(buf), \"%d\", avctx->pix_fmt);\n\n av_log(avctx, AV_LOG_ERROR, \"Specified pixel format %s is invalid or not supported\\n\",\n\n (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));\n\n ret = AVERROR(EINVAL);\n\n goto free_and_end;\n\n }\n\n }\n\n if (avctx->codec->supported_samplerates) {\n\n for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)\n\n if (avctx->sample_rate == avctx->codec->supported_samplerates[i])\n\n break;\n\n if (avctx->codec->supported_samplerates[i] == 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"Specified sample rate %d is not supported\\n\",\n\n avctx->sample_rate);\n\n ret = AVERROR(EINVAL);\n\n goto free_and_end;\n\n }\n\n }\n\n if (avctx->codec->channel_layouts) {\n\n if (!avctx->channel_layout) {\n\n av_log(avctx, AV_LOG_WARNING, \"Channel layout not specified\\n\");\n\n } else {\n\n for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)\n\n if (avctx->channel_layout == avctx->codec->channel_layouts[i])\n\n break;\n\n if (avctx->codec->channel_layouts[i] == 0) {\n\n char buf[512];\n\n av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);\n\n av_log(avctx, AV_LOG_ERROR, \"Specified channel layout '%s' is not supported\\n\", buf);\n\n ret = AVERROR(EINVAL);\n\n goto free_and_end;\n\n }\n\n }\n\n }\n\n if (avctx->channel_layout && avctx->channels) {\n\n int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);\n\n if (channels != avctx->channels) {\n\n char buf[512];\n\n av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"Channel layout '%s' with %d channels does not match number of specified channels %d\\n\",\n\n buf, channels, avctx->channels);\n\n ret = AVERROR(EINVAL);\n\n goto free_and_end;\n\n }\n\n } else if (avctx->channel_layout) {\n\n avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);\n\n }\n\n if(avctx->codec_type == AVMEDIA_TYPE_VIDEO &&\n\n avctx->codec_id != AV_CODEC_ID_PNG // For mplayer\n\n ) {\n\n if (avctx->width <= 0 || avctx->height <= 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"dimensions not set\\n\");\n\n ret = AVERROR(EINVAL);\n\n goto free_and_end;\n\n }\n\n }\n\n if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)\n\n && avctx->bit_rate>0 && avctx->bit_rate<1000) {\n\n av_log(avctx, AV_LOG_WARNING, \"Bitrate %d is extremely low, maybe you mean %dk\\n\", avctx->bit_rate, avctx->bit_rate);\n\n }\n\n\n\n if (!avctx->rc_initial_buffer_occupancy)\n\n avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3 / 4;\n\n }\n\n\n\n avctx->pts_correction_num_faulty_pts =\n\n avctx->pts_correction_num_faulty_dts = 0;\n\n avctx->pts_correction_last_pts =\n\n avctx->pts_correction_last_dts = INT64_MIN;\n\n\n\n if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)\n\n || avctx->internal->frame_thread_encoder)) {\n\n ret = avctx->codec->init(avctx);\n\n if (ret < 0) {\n\n goto free_and_end;\n\n }\n\n }\n\n\n\n ret=0;\n\n\n\n if (av_codec_is_decoder(avctx->codec)) {\n\n if (!avctx->bit_rate)\n\n avctx->bit_rate = get_bit_rate(avctx);\n\n /* validate channel layout from the decoder */\n\n if (avctx->channel_layout) {\n\n int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);\n\n if (!avctx->channels)\n\n avctx->channels = channels;\n\n else if (channels != avctx->channels) {\n\n char buf[512];\n\n av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);\n\n av_log(avctx, AV_LOG_WARNING,\n\n \"Channel layout '%s' with %d channels does not match specified number of channels %d: \"\n\n \"ignoring specified channel layout\\n\",\n\n buf, channels, avctx->channels);\n\n avctx->channel_layout = 0;\n\n }\n\n }\n\n if (avctx->channels && avctx->channels < 0 ||\n\n avctx->channels > FF_SANE_NB_CHANNELS) {\n\n ret = AVERROR(EINVAL);\n\n goto free_and_end;\n\n }\n\n if (avctx->sub_charenc) {\n\n if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {\n\n av_log(avctx, AV_LOG_ERROR, \"Character encoding is only \"\n\n \"supported with subtitles codecs\\n\");\n\n ret = AVERROR(EINVAL);\n\n goto free_and_end;\n\n } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {\n\n av_log(avctx, AV_LOG_WARNING, \"Codec '%s' is bitmap-based, \"\n\n \"subtitles character encoding will be ignored\\n\",\n\n avctx->codec_descriptor->name);\n\n avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;\n\n } else {\n\n /* input character encoding is set for a text based subtitle\n\n * codec at this point */\n\n if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)\n\n avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;\n\n\n\n if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {\n\n#if CONFIG_ICONV\n\n iconv_t cd = iconv_open(\"UTF-8\", avctx->sub_charenc);\n\n if (cd == (iconv_t)-1) {\n\n av_log(avctx, AV_LOG_ERROR, \"Unable to open iconv context \"\n\n \"with input character encoding \\\"%s\\\"\\n\", avctx->sub_charenc);\n\n ret = AVERROR(errno);\n\n goto free_and_end;\n\n }\n\n iconv_close(cd);\n\n#else\n\n av_log(avctx, AV_LOG_ERROR, \"Character encoding subtitles \"\n\n \"conversion needs a libavcodec built with iconv support \"\n\n \"for this codec\\n\");\n\n ret = AVERROR(ENOSYS);\n\n goto free_and_end;\n\n#endif\n\n }\n\n }\n\n }\n\n }\n\nend:\n\n ff_unlock_avcodec();\n\n if (options) {\n\n av_dict_free(options);\n\n *options = tmp;\n\n }\n\n\n\n return ret;\n\nfree_and_end:\n\n av_dict_free(&tmp);\n\n av_freep(&avctx->priv_data);\n\n if (avctx->internal)\n\n av_freep(&avctx->internal->pool);\n\n av_freep(&avctx->internal);\n\n avctx->codec = NULL;\n\n goto end;\n\n}\n", + "output": "0", + "index": 14948 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void virtio_ccw_device_realize(VirtioCcwDevice *dev, Error **errp)\n\n{\n\n unsigned int cssid = 0;\n\n unsigned int ssid = 0;\n\n unsigned int schid;\n\n unsigned int devno;\n\n bool have_devno = false;\n\n bool found = false;\n\n SubchDev *sch;\n\n int num;\n\n DeviceState *parent = DEVICE(dev);\n\n Error *err = NULL;\n\n VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_GET_CLASS(dev);\n\n VirtIODevice *vdev;\n\n\n\n sch = g_malloc0(sizeof(SubchDev));\n\n\n\n sch->driver_data = dev;\n\n dev->sch = sch;\n\n\n\n dev->indicators = NULL;\n\n\n\n /* Initialize subchannel structure. */\n\n sch->channel_prog = 0x0;\n\n sch->last_cmd_valid = false;\n\n sch->thinint_active = false;\n\n /*\n\n * Use a device number if provided. Otherwise, fall back to subchannel\n\n * number.\n\n */\n\n if (dev->bus_id) {\n\n num = sscanf(dev->bus_id, \"%x.%x.%04x\", &cssid, &ssid, &devno);\n\n if (num == 3) {\n\n if ((cssid > MAX_CSSID) || (ssid > MAX_SSID)) {\n\n error_setg(errp, \"Invalid cssid or ssid: cssid %x, ssid %x\",\n\n cssid, ssid);\n\n goto out_err;\n\n }\n\n /* Enforce use of virtual cssid. */\n\n if (cssid != VIRTUAL_CSSID) {\n\n error_setg(errp, \"cssid %x not valid for virtio devices\",\n\n cssid);\n\n goto out_err;\n\n }\n\n if (css_devno_used(cssid, ssid, devno)) {\n\n error_setg(errp, \"Device %x.%x.%04x already exists\",\n\n cssid, ssid, devno);\n\n goto out_err;\n\n }\n\n sch->cssid = cssid;\n\n sch->ssid = ssid;\n\n sch->devno = devno;\n\n have_devno = true;\n\n } else {\n\n error_setg(errp, \"Malformed devno parameter '%s'\", dev->bus_id);\n\n goto out_err;\n\n }\n\n }\n\n\n\n /* Find the next free id. */\n\n if (have_devno) {\n\n for (schid = 0; schid <= MAX_SCHID; schid++) {\n\n if (!css_find_subch(1, cssid, ssid, schid)) {\n\n sch->schid = schid;\n\n css_subch_assign(cssid, ssid, schid, devno, sch);\n\n found = true;\n\n break;\n\n }\n\n }\n\n if (!found) {\n\n error_setg(errp, \"No free subchannel found for %x.%x.%04x\",\n\n cssid, ssid, devno);\n\n goto out_err;\n\n }\n\n trace_virtio_ccw_new_device(cssid, ssid, schid, devno,\n\n \"user-configured\");\n\n } else {\n\n cssid = VIRTUAL_CSSID;\n\n for (ssid = 0; ssid <= MAX_SSID; ssid++) {\n\n for (schid = 0; schid <= MAX_SCHID; schid++) {\n\n if (!css_find_subch(1, cssid, ssid, schid)) {\n\n sch->cssid = cssid;\n\n sch->ssid = ssid;\n\n sch->schid = schid;\n\n devno = schid;\n\n /*\n\n * If the devno is already taken, look further in this\n\n * subchannel set.\n\n */\n\n while (css_devno_used(cssid, ssid, devno)) {\n\n if (devno == MAX_SCHID) {\n\n devno = 0;\n\n } else if (devno == schid - 1) {\n\n error_setg(errp, \"No free devno found\");\n\n goto out_err;\n\n } else {\n\n devno++;\n\n }\n\n }\n\n sch->devno = devno;\n\n css_subch_assign(cssid, ssid, schid, devno, sch);\n\n found = true;\n\n break;\n\n }\n\n }\n\n if (found) {\n\n break;\n\n }\n\n }\n\n if (!found) {\n\n error_setg(errp, \"Virtual channel subsystem is full!\");\n\n goto out_err;\n\n }\n\n trace_virtio_ccw_new_device(cssid, ssid, schid, devno,\n\n \"auto-configured\");\n\n }\n\n\n\n /* Build initial schib. */\n\n css_sch_build_virtual_schib(sch, 0, VIRTIO_CCW_CHPID_TYPE);\n\n\n\n sch->ccw_cb = virtio_ccw_cb;\n\n\n\n /* Build senseid data. */\n\n memset(&sch->id, 0, sizeof(SenseId));\n\n sch->id.reserved = 0xff;\n\n sch->id.cu_type = VIRTIO_CCW_CU_TYPE;\n\n\n\n if (k->realize) {\n\n k->realize(dev, &err);\n\n }\n\n if (err) {\n\n error_propagate(errp, err);\n\n css_subch_assign(cssid, ssid, schid, devno, NULL);\n\n goto out_err;\n\n }\n\n\n\n /* device_id is only set after vdev has been realized */\n\n vdev = virtio_ccw_get_vdev(sch);\n\n sch->id.cu_model = vdev->device_id;\n\n\n\n /* Only the first 32 feature bits are used. */\n\n dev->host_features[0] = virtio_bus_get_vdev_features(&dev->bus,\n\n dev->host_features[0]);\n\n\n\n virtio_add_feature(&dev->host_features[0], VIRTIO_F_NOTIFY_ON_EMPTY);\n\n virtio_add_feature(&dev->host_features[0], VIRTIO_F_BAD_FEATURE);\n\n\n\n css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid,\n\n parent->hotplugged, 1);\n\n return;\n\n\n\nout_err:\n\n dev->sch = NULL;\n\n g_free(sch);\n\n}\n", + "output": "0", + "index": 9744 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int jpeg2000_decode_packet(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile, int *tp_index,\n\n Jpeg2000CodingStyle *codsty,\n\n Jpeg2000ResLevel *rlevel, int precno,\n\n int layno, uint8_t *expn, int numgbits)\n\n{\n\n int bandno, cblkno, ret, nb_code_blocks;\n\n int cwsno;\n\n\n\n if (bytestream2_get_bytes_left(&s->g) == 0 && s->bit_index == 8) {\n\n if (*tp_index < FF_ARRAY_ELEMS(tile->tile_part) - 1) {\n\n s->g = tile->tile_part[++(*tp_index)].tpg;\n\n }\n\n }\n\n\n\n if (bytestream2_peek_be32(&s->g) == 0xFF910004)\n\n bytestream2_skip(&s->g, 6);\n\n\n\n if (!(ret = get_bits(s, 1))) {\n\n jpeg2000_flush(s);\n\n return 0;\n\n } else if (ret < 0)\n\n return ret;\n\n\n\n for (bandno = 0; bandno < rlevel->nbands; bandno++) {\n\n Jpeg2000Band *band = rlevel->band + bandno;\n\n Jpeg2000Prec *prec = band->prec + precno;\n\n\n\n if (band->coord[0][0] == band->coord[0][1] ||\n\n band->coord[1][0] == band->coord[1][1])\n\n continue;\n\n nb_code_blocks = prec->nb_codeblocks_height *\n\n prec->nb_codeblocks_width;\n\n for (cblkno = 0; cblkno < nb_code_blocks; cblkno++) {\n\n Jpeg2000Cblk *cblk = prec->cblk + cblkno;\n\n int incl, newpasses, llen;\n\n\n\n if (cblk->npasses)\n\n incl = get_bits(s, 1);\n\n else\n\n incl = tag_tree_decode(s, prec->cblkincl + cblkno, layno + 1) == layno;\n\n if (!incl)\n\n continue;\n\n else if (incl < 0)\n\n return incl;\n\n\n\n if (!cblk->npasses) {\n\n int v = expn[bandno] + numgbits - 1 -\n\n tag_tree_decode(s, prec->zerobits + cblkno, 100);\n\n if (v < 0) {\n\n av_log(s->avctx, AV_LOG_ERROR,\n\n \"nonzerobits %d invalid\\n\", v);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n cblk->nonzerobits = v;\n\n }\n\n if ((newpasses = getnpasses(s)) < 0)\n\n return newpasses;\n\n av_assert2(newpasses > 0);\n\n if (cblk->npasses + newpasses >= JPEG2000_MAX_PASSES) {\n\n avpriv_request_sample(s->avctx, \"Too many passes\\n\");\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n if ((llen = getlblockinc(s)) < 0)\n\n return llen;\n\n if (cblk->lblock + llen + av_log2(newpasses) > 16) {\n\n avpriv_request_sample(s->avctx,\n\n \"Block with length beyond 16 bits\\n\");\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n\n\n cblk->lblock += llen;\n\n\n\n cblk->nb_lengthinc = 0;\n\n cblk->nb_terminationsinc = 0;\n\n do {\n\n int newpasses1 = 0;\n\n\n\n while (newpasses1 < newpasses) {\n\n newpasses1 ++;\n\n if (needs_termination(codsty->cblk_style, cblk->npasses + newpasses1 - 1)) {\n\n cblk->nb_terminationsinc ++;\n\n break;\n\n }\n\n }\n\n\n\n if ((ret = get_bits(s, av_log2(newpasses1) + cblk->lblock)) < 0)\n\n return ret;\n\n if (ret > sizeof(cblk->data)) {\n\n avpriv_request_sample(s->avctx,\n\n \"Block with lengthinc greater than %\"SIZE_SPECIFIER\"\",\n\n sizeof(cblk->data));\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n cblk->lengthinc[cblk->nb_lengthinc++] = ret;\n\n cblk->npasses += newpasses1;\n\n newpasses -= newpasses1;\n\n } while(newpasses);\n\n }\n\n }\n\n jpeg2000_flush(s);\n\n\n\n if (codsty->csty & JPEG2000_CSTY_EPH) {\n\n if (bytestream2_peek_be16(&s->g) == JPEG2000_EPH)\n\n bytestream2_skip(&s->g, 2);\n\n else\n\n av_log(s->avctx, AV_LOG_ERROR, \"EPH marker not found.\\n\");\n\n }\n\n\n\n for (bandno = 0; bandno < rlevel->nbands; bandno++) {\n\n Jpeg2000Band *band = rlevel->band + bandno;\n\n Jpeg2000Prec *prec = band->prec + precno;\n\n\n\n nb_code_blocks = prec->nb_codeblocks_height * prec->nb_codeblocks_width;\n\n for (cblkno = 0; cblkno < nb_code_blocks; cblkno++) {\n\n Jpeg2000Cblk *cblk = prec->cblk + cblkno;\n\n for (cwsno = 0; cwsno < cblk->nb_lengthinc; cwsno ++) {\n\n if ( bytestream2_get_bytes_left(&s->g) < cblk->lengthinc[cwsno]\n\n || sizeof(cblk->data) < cblk->length + cblk->lengthinc[cwsno] + 4\n\n ) {\n\n av_log(s->avctx, AV_LOG_ERROR,\n\n \"Block length %\"PRIu16\" or lengthinc %d is too large, left %d\\n\",\n\n cblk->length, cblk->lengthinc[cwsno], bytestream2_get_bytes_left(&s->g));\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n bytestream2_get_bufferu(&s->g, cblk->data + cblk->length, cblk->lengthinc[cwsno]);\n\n cblk->length += cblk->lengthinc[cwsno];\n\n cblk->lengthinc[cwsno] = 0;\n\n if (cblk->nb_terminationsinc) {\n\n cblk->nb_terminationsinc--;\n\n cblk->nb_terminations++;\n\n cblk->data[cblk->length++] = 0xFF;\n\n cblk->data[cblk->length++] = 0xFF;\n\n cblk->data_start[cblk->nb_terminations] = cblk->length;\n\n }\n\n }\n\n }\n\n }\n\n return 0;\n\n}\n", + "output": "0", + "index": 22882 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void qdm2_decode_super_block(QDM2Context *q)\n\n{\n\n GetBitContext gb;\n\n QDM2SubPacket header, *packet;\n\n int i, packet_bytes, sub_packet_size, sub_packets_D;\n\n unsigned int next_index = 0;\n\n\n\n memset(q->tone_level_idx_hi1, 0, sizeof(q->tone_level_idx_hi1));\n\n memset(q->tone_level_idx_mid, 0, sizeof(q->tone_level_idx_mid));\n\n memset(q->tone_level_idx_hi2, 0, sizeof(q->tone_level_idx_hi2));\n\n\n\n q->sub_packets_B = 0;\n\n sub_packets_D = 0;\n\n\n\n average_quantized_coeffs(q); // average elements in quantized_coeffs[max_ch][10][8]\n\n\n\n init_get_bits(&gb, q->compressed_data, q->compressed_size * 8);\n\n qdm2_decode_sub_packet_header(&gb, &header);\n\n\n\n if (header.type < 2 || header.type >= 8) {\n\n q->has_errors = 1;\n\n av_log(NULL, AV_LOG_ERROR, \"bad superblock type\\n\");\n\n return;\n\n }\n\n\n\n q->superblocktype_2_3 = (header.type == 2 || header.type == 3);\n\n packet_bytes = (q->compressed_size - get_bits_count(&gb) / 8);\n\n\n\n init_get_bits(&gb, header.data, header.size * 8);\n\n\n\n if (header.type == 2 || header.type == 4 || header.type == 5) {\n\n int csum = 257 * get_bits(&gb, 8);\n\n csum += 2 * get_bits(&gb, 8);\n\n\n\n csum = qdm2_packet_checksum(q->compressed_data, q->checksum_size, csum);\n\n\n\n if (csum != 0) {\n\n q->has_errors = 1;\n\n av_log(NULL, AV_LOG_ERROR, \"bad packet checksum\\n\");\n\n return;\n\n }\n\n }\n\n\n\n q->sub_packet_list_B[0].packet = NULL;\n\n q->sub_packet_list_D[0].packet = NULL;\n\n\n\n for (i = 0; i < 6; i++)\n\n if (--q->fft_level_exp[i] < 0)\n\n q->fft_level_exp[i] = 0;\n\n\n\n for (i = 0; packet_bytes > 0; i++) {\n\n int j;\n\n\n\n if (i >= FF_ARRAY_ELEMS(q->sub_packet_list_A)) {\n\n SAMPLES_NEEDED_2(\"too many packet bytes\");\n\n return;\n\n }\n\n\n\n q->sub_packet_list_A[i].next = NULL;\n\n\n\n if (i > 0) {\n\n q->sub_packet_list_A[i - 1].next = &q->sub_packet_list_A[i];\n\n\n\n /* seek to next block */\n\n init_get_bits(&gb, header.data, header.size * 8);\n\n skip_bits(&gb, next_index * 8);\n\n\n\n if (next_index >= header.size)\n\n break;\n\n }\n\n\n\n /* decode subpacket */\n\n packet = &q->sub_packets[i];\n\n qdm2_decode_sub_packet_header(&gb, packet);\n\n next_index = packet->size + get_bits_count(&gb) / 8;\n\n sub_packet_size = ((packet->size > 0xff) ? 1 : 0) + packet->size + 2;\n\n\n\n if (packet->type == 0)\n\n break;\n\n\n\n if (sub_packet_size > packet_bytes) {\n\n if (packet->type != 10 && packet->type != 11 && packet->type != 12)\n\n break;\n\n packet->size += packet_bytes - sub_packet_size;\n\n }\n\n\n\n packet_bytes -= sub_packet_size;\n\n\n\n /* add subpacket to 'all subpackets' list */\n\n q->sub_packet_list_A[i].packet = packet;\n\n\n\n /* add subpacket to related list */\n\n if (packet->type == 8) {\n\n SAMPLES_NEEDED_2(\"packet type 8\");\n\n return;\n\n } else if (packet->type >= 9 && packet->type <= 12) {\n\n /* packets for MPEG Audio like Synthesis Filter */\n\n QDM2_LIST_ADD(q->sub_packet_list_D, sub_packets_D, packet);\n\n } else if (packet->type == 13) {\n\n for (j = 0; j < 6; j++)\n\n q->fft_level_exp[j] = get_bits(&gb, 6);\n\n } else if (packet->type == 14) {\n\n for (j = 0; j < 6; j++)\n\n q->fft_level_exp[j] = qdm2_get_vlc(&gb, &fft_level_exp_vlc, 0, 2);\n\n } else if (packet->type == 15) {\n\n SAMPLES_NEEDED_2(\"packet type 15\")\n\n return;\n\n } else if (packet->type >= 16 && packet->type < 48 &&\n\n !fft_subpackets[packet->type - 16]) {\n\n /* packets for FFT */\n\n QDM2_LIST_ADD(q->sub_packet_list_B, q->sub_packets_B, packet);\n\n }\n\n } // Packet bytes loop\n\n\n\n if (q->sub_packet_list_D[0].packet != NULL) {\n\n process_synthesis_subpackets(q, q->sub_packet_list_D);\n\n q->do_synth_filter = 1;\n\n } else if (q->do_synth_filter) {\n\n process_subpacket_10(q, NULL);\n\n process_subpacket_11(q, NULL);\n\n process_subpacket_12(q, NULL);\n\n }\n\n}\n", + "output": "0", + "index": 3290 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int film_read_header(AVFormatContext *s)\n\n{\n\n FilmDemuxContext *film = s->priv_data;\n\n AVIOContext *pb = s->pb;\n\n AVStream *st;\n\n unsigned char scratch[256];\n\n int i;\n\n unsigned int data_offset;\n\n unsigned int audio_frame_counter;\n\n\n\n film->sample_table = NULL;\n\n film->stereo_buffer = NULL;\n\n film->stereo_buffer_size = 0;\n\n\n\n /* load the main FILM header */\n\n if (avio_read(pb, scratch, 16) != 16)\n\n return AVERROR(EIO);\n\n data_offset = AV_RB32(&scratch[4]);\n\n film->version = AV_RB32(&scratch[8]);\n\n\n\n /* load the FDSC chunk */\n\n if (film->version == 0) {\n\n /* special case for Lemmings .film files; 20-byte header */\n\n if (avio_read(pb, scratch, 20) != 20)\n\n return AVERROR(EIO);\n\n /* make some assumptions about the audio parameters */\n\n film->audio_type = AV_CODEC_ID_PCM_S8;\n\n film->audio_samplerate = 22050;\n\n film->audio_channels = 1;\n\n film->audio_bits = 8;\n\n } else {\n\n /* normal Saturn .cpk files; 32-byte header */\n\n if (avio_read(pb, scratch, 32) != 32)\n\n return AVERROR(EIO);\n\n film->audio_samplerate = AV_RB16(&scratch[24]);\n\n film->audio_channels = scratch[21];\n\n if (!film->audio_channels || film->audio_channels > 2) {\n\n av_log(s, AV_LOG_ERROR,\n\n \"Invalid number of channels: %d\\n\", film->audio_channels);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n film->audio_bits = scratch[22];\n\n if (scratch[23] == 2)\n\n film->audio_type = AV_CODEC_ID_ADPCM_ADX;\n\n else if (film->audio_channels > 0) {\n\n if (film->audio_bits == 8)\n\n film->audio_type = AV_CODEC_ID_PCM_S8;\n\n else if (film->audio_bits == 16)\n\n film->audio_type = AV_CODEC_ID_PCM_S16BE;\n\n else\n\n film->audio_type = AV_CODEC_ID_NONE;\n\n } else\n\n film->audio_type = AV_CODEC_ID_NONE;\n\n }\n\n\n\n if (AV_RB32(&scratch[0]) != FDSC_TAG)\n\n return AVERROR_INVALIDDATA;\n\n\n\n if (AV_RB32(&scratch[8]) == CVID_TAG) {\n\n film->video_type = AV_CODEC_ID_CINEPAK;\n\n } else if (AV_RB32(&scratch[8]) == RAW_TAG) {\n\n film->video_type = AV_CODEC_ID_RAWVIDEO;\n\n } else {\n\n film->video_type = AV_CODEC_ID_NONE;\n\n }\n\n\n\n /* initialize the decoder streams */\n\n if (film->video_type) {\n\n st = avformat_new_stream(s, NULL);\n\n if (!st)\n\n return AVERROR(ENOMEM);\n\n film->video_stream_index = st->index;\n\n st->codec->codec_type = AVMEDIA_TYPE_VIDEO;\n\n st->codec->codec_id = film->video_type;\n\n st->codec->codec_tag = 0; /* no fourcc */\n\n st->codec->width = AV_RB32(&scratch[16]);\n\n st->codec->height = AV_RB32(&scratch[12]);\n\n\n\n if (film->video_type == AV_CODEC_ID_RAWVIDEO) {\n\n if (scratch[20] == 24) {\n\n st->codec->pix_fmt = AV_PIX_FMT_RGB24;\n\n } else {\n\n av_log(s, AV_LOG_ERROR, \"raw video is using unhandled %dbpp\\n\", scratch[20]);\n\n return -1;\n\n }\n\n }\n\n }\n\n\n\n if (film->audio_type) {\n\n st = avformat_new_stream(s, NULL);\n\n if (!st)\n\n return AVERROR(ENOMEM);\n\n film->audio_stream_index = st->index;\n\n st->codec->codec_type = AVMEDIA_TYPE_AUDIO;\n\n st->codec->codec_id = film->audio_type;\n\n st->codec->codec_tag = 1;\n\n st->codec->channels = film->audio_channels;\n\n st->codec->sample_rate = film->audio_samplerate;\n\n\n\n if (film->audio_type == AV_CODEC_ID_ADPCM_ADX) {\n\n st->codec->bits_per_coded_sample = 18 * 8 / 32;\n\n st->codec->block_align = st->codec->channels * 18;\n\n st->need_parsing = AVSTREAM_PARSE_FULL;\n\n } else {\n\n st->codec->bits_per_coded_sample = film->audio_bits;\n\n st->codec->block_align = st->codec->channels *\n\n st->codec->bits_per_coded_sample / 8;\n\n }\n\n\n\n st->codec->bit_rate = st->codec->channels * st->codec->sample_rate *\n\n st->codec->bits_per_coded_sample;\n\n }\n\n\n\n /* load the sample table */\n\n if (avio_read(pb, scratch, 16) != 16)\n\n return AVERROR(EIO);\n\n if (AV_RB32(&scratch[0]) != STAB_TAG)\n\n return AVERROR_INVALIDDATA;\n\n film->base_clock = AV_RB32(&scratch[8]);\n\n film->sample_count = AV_RB32(&scratch[12]);\n\n if(film->sample_count >= UINT_MAX / sizeof(film_sample))\n\n return -1;\n\n film->sample_table = av_malloc(film->sample_count * sizeof(film_sample));\n\n if (!film->sample_table)\n\n return AVERROR(ENOMEM);\n\n\n\n for (i = 0; i < s->nb_streams; i++) {\n\n st = s->streams[i];\n\n if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)\n\n avpriv_set_pts_info(st, 33, 1, film->base_clock);\n\n else\n\n avpriv_set_pts_info(st, 64, 1, film->audio_samplerate);\n\n }\n\n\n\n audio_frame_counter = 0;\n\n for (i = 0; i < film->sample_count; i++) {\n\n /* load the next sample record and transfer it to an internal struct */\n\n if (avio_read(pb, scratch, 16) != 16) {\n\n av_free(film->sample_table);\n\n return AVERROR(EIO);\n\n }\n\n film->sample_table[i].sample_offset =\n\n data_offset + AV_RB32(&scratch[0]);\n\n film->sample_table[i].sample_size = AV_RB32(&scratch[4]);\n\n if (film->sample_table[i].sample_size > INT_MAX / 4)\n\n return AVERROR_INVALIDDATA;\n\n if (AV_RB32(&scratch[8]) == 0xFFFFFFFF) {\n\n film->sample_table[i].stream = film->audio_stream_index;\n\n film->sample_table[i].pts = audio_frame_counter;\n\n\n\n if (film->audio_type == AV_CODEC_ID_ADPCM_ADX)\n\n audio_frame_counter += (film->sample_table[i].sample_size * 32 /\n\n (18 * film->audio_channels));\n\n else if (film->audio_type != AV_CODEC_ID_NONE)\n\n audio_frame_counter += (film->sample_table[i].sample_size /\n\n (film->audio_channels * film->audio_bits / 8));\n\n } else {\n\n film->sample_table[i].stream = film->video_stream_index;\n\n film->sample_table[i].pts = AV_RB32(&scratch[8]) & 0x7FFFFFFF;\n\n film->sample_table[i].keyframe = (scratch[8] & 0x80) ? 0 : 1;\n\n }\n\n }\n\n\n\n film->current_sample = 0;\n\n\n\n return 0;\n\n}\n", + "output": "1", + "index": 23715 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int net_slirp_init(NetClientState *peer, const char *model,\n\n const char *name, int restricted,\n\n const char *vnetwork, const char *vhost,\n\n const char *vhostname, const char *tftp_export,\n\n const char *bootfile, const char *vdhcp_start,\n\n const char *vnameserver, const char *smb_export,\n\n const char *vsmbserver, const char **dnssearch)\n\n{\n\n /* default settings according to historic slirp */\n\n struct in_addr net = { .s_addr = htonl(0x0a000200) }; /* 10.0.2.0 */\n\n struct in_addr mask = { .s_addr = htonl(0xffffff00) }; /* 255.255.255.0 */\n\n struct in_addr host = { .s_addr = htonl(0x0a000202) }; /* 10.0.2.2 */\n\n struct in_addr dhcp = { .s_addr = htonl(0x0a00020f) }; /* 10.0.2.15 */\n\n struct in_addr dns = { .s_addr = htonl(0x0a000203) }; /* 10.0.2.3 */\n\n#ifndef _WIN32\n\n struct in_addr smbsrv = { .s_addr = 0 };\n\n#endif\n\n NetClientState *nc;\n\n SlirpState *s;\n\n char buf[20];\n\n uint32_t addr;\n\n int shift;\n\n char *end;\n\n struct slirp_config_str *config;\n\n\n\n if (!tftp_export) {\n\n tftp_export = legacy_tftp_prefix;\n\n }\n\n if (!bootfile) {\n\n bootfile = legacy_bootp_filename;\n\n }\n\n\n\n if (vnetwork) {\n\n if (get_str_sep(buf, sizeof(buf), &vnetwork, '/') < 0) {\n\n if (!inet_aton(vnetwork, &net)) {\n\n return -1;\n\n }\n\n addr = ntohl(net.s_addr);\n\n if (!(addr & 0x80000000)) {\n\n mask.s_addr = htonl(0xff000000); /* class A */\n\n } else if ((addr & 0xfff00000) == 0xac100000) {\n\n mask.s_addr = htonl(0xfff00000); /* priv. 172.16.0.0/12 */\n\n } else if ((addr & 0xc0000000) == 0x80000000) {\n\n mask.s_addr = htonl(0xffff0000); /* class B */\n\n } else if ((addr & 0xffff0000) == 0xc0a80000) {\n\n mask.s_addr = htonl(0xffff0000); /* priv. 192.168.0.0/16 */\n\n } else if ((addr & 0xffff0000) == 0xc6120000) {\n\n mask.s_addr = htonl(0xfffe0000); /* tests 198.18.0.0/15 */\n\n } else if ((addr & 0xe0000000) == 0xe0000000) {\n\n mask.s_addr = htonl(0xffffff00); /* class C */\n\n } else {\n\n mask.s_addr = htonl(0xfffffff0); /* multicast/reserved */\n\n }\n\n } else {\n\n if (!inet_aton(buf, &net)) {\n\n return -1;\n\n }\n\n shift = strtol(vnetwork, &end, 10);\n\n if (*end != '\\0') {\n\n if (!inet_aton(vnetwork, &mask)) {\n\n return -1;\n\n }\n\n } else if (shift < 4 || shift > 32) {\n\n return -1;\n\n } else {\n\n mask.s_addr = htonl(0xffffffff << (32 - shift));\n\n }\n\n }\n\n net.s_addr &= mask.s_addr;\n\n host.s_addr = net.s_addr | (htonl(0x0202) & ~mask.s_addr);\n\n dhcp.s_addr = net.s_addr | (htonl(0x020f) & ~mask.s_addr);\n\n dns.s_addr = net.s_addr | (htonl(0x0203) & ~mask.s_addr);\n\n }\n\n\n\n if (vhost && !inet_aton(vhost, &host)) {\n\n return -1;\n\n }\n\n if ((host.s_addr & mask.s_addr) != net.s_addr) {\n\n return -1;\n\n }\n\n\n\n if (vdhcp_start && !inet_aton(vdhcp_start, &dhcp)) {\n\n return -1;\n\n }\n\n if ((dhcp.s_addr & mask.s_addr) != net.s_addr ||\n\n dhcp.s_addr == host.s_addr || dhcp.s_addr == dns.s_addr) {\n\n return -1;\n\n }\n\n\n\n if (vnameserver && !inet_aton(vnameserver, &dns)) {\n\n return -1;\n\n }\n\n if ((dns.s_addr & mask.s_addr) != net.s_addr ||\n\n dns.s_addr == host.s_addr) {\n\n return -1;\n\n }\n\n\n\n#ifndef _WIN32\n\n if (vsmbserver && !inet_aton(vsmbserver, &smbsrv)) {\n\n return -1;\n\n }\n\n#endif\n\n\n\n nc = qemu_new_net_client(&net_slirp_info, peer, model, name);\n\n\n\n snprintf(nc->info_str, sizeof(nc->info_str),\n\n \"net=%s,restrict=%s\", inet_ntoa(net),\n\n restricted ? \"on\" : \"off\");\n\n\n\n s = DO_UPCAST(SlirpState, nc, nc);\n\n\n\n s->slirp = slirp_init(restricted, net, mask, host, vhostname,\n\n tftp_export, bootfile, dhcp, dns, dnssearch, s);\n\n QTAILQ_INSERT_TAIL(&slirp_stacks, s, entry);\n\n\n\n for (config = slirp_configs; config; config = config->next) {\n\n if (config->flags & SLIRP_CFG_HOSTFWD) {\n\n if (slirp_hostfwd(s, config->str,\n\n config->flags & SLIRP_CFG_LEGACY) < 0)\n\n goto error;\n\n } else {\n\n if (slirp_guestfwd(s, config->str,\n\n config->flags & SLIRP_CFG_LEGACY) < 0)\n\n goto error;\n\n }\n\n }\n\n#ifndef _WIN32\n\n if (!smb_export) {\n\n smb_export = legacy_smb_export;\n\n }\n\n if (smb_export) {\n\n if (slirp_smb(s, smb_export, smbsrv) < 0)\n\n goto error;\n\n }\n\n#endif\n\n\n\n return 0;\n\n\n\nerror:\n\n qemu_del_net_client(nc);\n\n return -1;\n\n}\n", + "output": "0", + "index": 26247 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int flush_packet(AVFormatContext *ctx, int stream_index,\n\n int64_t pts, int64_t dts, int64_t scr, int trailer_size)\n\n{\n\n MpegMuxContext *s = ctx->priv_data;\n\n StreamInfo *stream = ctx->streams[stream_index]->priv_data;\n\n uint8_t *buf_ptr;\n\n int size, payload_size, startcode, id, stuffing_size, i, header_len;\n\n int packet_size;\n\n uint8_t buffer[128];\n\n int zero_trail_bytes = 0;\n\n int pad_packet_bytes = 0;\n\n int pes_flags;\n\n int general_pack = 0; /*\"general\" pack without data specific to one stream?*/\n\n int nb_frames;\n\n\n\n id = stream->id;\n\n\n\n#if 0\n\n printf(\"packet ID=%2x PTS=%0.3f\\n\",\n\n id, pts / 90000.0);\n\n#endif\n\n\n\n buf_ptr = buffer;\n\n\n\n if ((s->packet_number % s->pack_header_freq) == 0 || s->last_scr != scr) {\n\n /* output pack and systems header if needed */\n\n size = put_pack_header(ctx, buf_ptr, scr);\n\n buf_ptr += size;\n\n s->last_scr= scr;\n\n\n\n if (s->is_vcd) {\n\n /* there is exactly one system header for each stream in a VCD MPEG,\n\n One in the very first video packet and one in the very first\n\n audio packet (see VCD standard p. IV-7 and IV-8).*/\n\n\n\n if (stream->packet_number==0) {\n\n size = put_system_header(ctx, buf_ptr, id);\n\n buf_ptr += size;\n\n }\n\n } else if (s->is_dvd) {\n\n if (stream->align_iframe || s->packet_number == 0){\n\n int PES_bytes_to_fill = s->packet_size - size - 10;\n\n\n\n if (pts != AV_NOPTS_VALUE) {\n\n if (dts != pts)\n\n PES_bytes_to_fill -= 5 + 5;\n\n else\n\n PES_bytes_to_fill -= 5;\n\n }\n\n\n\n if (stream->bytes_to_iframe == 0 || s->packet_number == 0) {\n\n size = put_system_header(ctx, buf_ptr, 0);\n\n buf_ptr += size;\n\n size = buf_ptr - buffer;\n\n put_buffer(ctx->pb, buffer, size);\n\n\n\n put_be32(ctx->pb, PRIVATE_STREAM_2);\n\n put_be16(ctx->pb, 0x03d4); // length\n\n put_byte(ctx->pb, 0x00); // substream ID, 00=PCI\n\n for (i = 0; i < 979; i++)\n\n put_byte(ctx->pb, 0x00);\n\n\n\n put_be32(ctx->pb, PRIVATE_STREAM_2);\n\n put_be16(ctx->pb, 0x03fa); // length\n\n put_byte(ctx->pb, 0x01); // substream ID, 01=DSI\n\n for (i = 0; i < 1017; i++)\n\n put_byte(ctx->pb, 0x00);\n\n\n\n memset(buffer, 0, 128);\n\n buf_ptr = buffer;\n\n s->packet_number++;\n\n stream->align_iframe = 0;\n\n scr += s->packet_size*90000LL / (s->mux_rate*50LL); //FIXME rounding and first few bytes of each packet\n\n size = put_pack_header(ctx, buf_ptr, scr);\n\n s->last_scr= scr;\n\n buf_ptr += size;\n\n /* GOP Start */\n\n } else if (stream->bytes_to_iframe < PES_bytes_to_fill) {\n\n pad_packet_bytes = PES_bytes_to_fill - stream->bytes_to_iframe;\n\n }\n\n }\n\n } else {\n\n if ((s->packet_number % s->system_header_freq) == 0) {\n\n size = put_system_header(ctx, buf_ptr, 0);\n\n buf_ptr += size;\n\n }\n\n }\n\n }\n\n size = buf_ptr - buffer;\n\n put_buffer(ctx->pb, buffer, size);\n\n\n\n packet_size = s->packet_size - size;\n\n\n\n if (s->is_vcd && id == AUDIO_ID)\n\n /* The VCD standard demands that 20 zero bytes follow\n\n each audio pack (see standard p. IV-8).*/\n\n zero_trail_bytes += 20;\n\n\n\n if ((s->is_vcd && stream->packet_number==0)\n\n || (s->is_svcd && s->packet_number==0)) {\n\n /* for VCD the first pack of each stream contains only the pack header,\n\n the system header and lots of padding (see VCD standard p. IV-6).\n\n In the case of an audio pack, 20 zero bytes are also added at\n\n the end.*/\n\n /* For SVCD we fill the very first pack to increase compatibility with\n\n some DVD players. Not mandated by the standard.*/\n\n if (s->is_svcd)\n\n general_pack = 1; /* the system header refers to both streams and no stream data*/\n\n pad_packet_bytes = packet_size - zero_trail_bytes;\n\n }\n\n\n\n packet_size -= pad_packet_bytes + zero_trail_bytes;\n\n\n\n if (packet_size > 0) {\n\n\n\n /* packet header size */\n\n packet_size -= 6;\n\n\n\n /* packet header */\n\n if (s->is_mpeg2) {\n\n header_len = 3;\n\n if (stream->packet_number==0)\n\n header_len += 3; /* PES extension */\n\n header_len += 1; /* obligatory stuffing byte */\n\n } else {\n\n header_len = 0;\n\n }\n\n if (pts != AV_NOPTS_VALUE) {\n\n if (dts != pts)\n\n header_len += 5 + 5;\n\n else\n\n header_len += 5;\n\n } else {\n\n if (!s->is_mpeg2)\n\n header_len++;\n\n }\n\n\n\n payload_size = packet_size - header_len;\n\n if (id < 0xc0) {\n\n startcode = PRIVATE_STREAM_1;\n\n payload_size -= 1;\n\n if (id >= 0x40) {\n\n payload_size -= 3;\n\n if (id >= 0xa0)\n\n payload_size -= 3;\n\n }\n\n } else {\n\n startcode = 0x100 + id;\n\n }\n\n\n\n stuffing_size = payload_size - av_fifo_size(&stream->fifo);\n\n\n\n // first byte does not fit -> reset pts/dts + stuffing\n\n if(payload_size <= trailer_size && pts != AV_NOPTS_VALUE){\n\n int timestamp_len=0;\n\n if(dts != pts)\n\n timestamp_len += 5;\n\n if(pts != AV_NOPTS_VALUE)\n\n timestamp_len += s->is_mpeg2 ? 5 : 4;\n\n pts=dts= AV_NOPTS_VALUE;\n\n header_len -= timestamp_len;\n\n if (s->is_dvd && stream->align_iframe) {\n\n pad_packet_bytes += timestamp_len;\n\n packet_size -= timestamp_len;\n\n } else {\n\n payload_size += timestamp_len;\n\n }\n\n stuffing_size += timestamp_len;\n\n if(payload_size > trailer_size)\n\n stuffing_size += payload_size - trailer_size;\n\n }\n\n\n\n if (pad_packet_bytes > 0 && pad_packet_bytes <= 7) { // can't use padding, so use stuffing\n\n packet_size += pad_packet_bytes;\n\n payload_size += pad_packet_bytes; // undo the previous adjustment\n\n if (stuffing_size < 0) {\n\n stuffing_size = pad_packet_bytes;\n\n } else {\n\n stuffing_size += pad_packet_bytes;\n\n }\n\n pad_packet_bytes = 0;\n\n }\n\n\n\n if (stuffing_size < 0)\n\n stuffing_size = 0;\n\n if (stuffing_size > 16) { /*<=16 for MPEG-1, <=32 for MPEG-2*/\n\n pad_packet_bytes += stuffing_size;\n\n packet_size -= stuffing_size;\n\n payload_size -= stuffing_size;\n\n stuffing_size = 0;\n\n }\n\n\n\n nb_frames= get_nb_frames(ctx, stream, payload_size - stuffing_size);\n\n\n\n put_be32(ctx->pb, startcode);\n\n\n\n put_be16(ctx->pb, packet_size);\n\n\n\n if (!s->is_mpeg2)\n\n for(i=0;ipb, 0xff);\n\n\n\n if (s->is_mpeg2) {\n\n put_byte(ctx->pb, 0x80); /* mpeg2 id */\n\n\n\n pes_flags=0;\n\n\n\n if (pts != AV_NOPTS_VALUE) {\n\n pes_flags |= 0x80;\n\n if (dts != pts)\n\n pes_flags |= 0x40;\n\n }\n\n\n\n /* Both the MPEG-2 and the SVCD standards demand that the\n\n P-STD_buffer_size field be included in the first packet of\n\n every stream. (see SVCD standard p. 26 V.2.3.1 and V.2.3.2\n\n and MPEG-2 standard 2.7.7) */\n\n if (stream->packet_number == 0)\n\n pes_flags |= 0x01;\n\n\n\n put_byte(ctx->pb, pes_flags); /* flags */\n\n put_byte(ctx->pb, header_len - 3 + stuffing_size);\n\n\n\n if (pes_flags & 0x80) /*write pts*/\n\n put_timestamp(ctx->pb, (pes_flags & 0x40) ? 0x03 : 0x02, pts);\n\n if (pes_flags & 0x40) /*write dts*/\n\n put_timestamp(ctx->pb, 0x01, dts);\n\n\n\n if (pes_flags & 0x01) { /*write pes extension*/\n\n put_byte(ctx->pb, 0x10); /* flags */\n\n\n\n /* P-STD buffer info */\n\n if (id == AUDIO_ID)\n\n put_be16(ctx->pb, 0x4000 | stream->max_buffer_size/128);\n\n else\n\n put_be16(ctx->pb, 0x6000 | stream->max_buffer_size/1024);\n\n }\n\n\n\n } else {\n\n if (pts != AV_NOPTS_VALUE) {\n\n if (dts != pts) {\n\n put_timestamp(ctx->pb, 0x03, pts);\n\n put_timestamp(ctx->pb, 0x01, dts);\n\n } else {\n\n put_timestamp(ctx->pb, 0x02, pts);\n\n }\n\n } else {\n\n put_byte(ctx->pb, 0x0f);\n\n }\n\n }\n\n\n\n if (s->is_mpeg2) {\n\n /* special stuffing byte that is always written\n\n to prevent accidental generation of start codes. */\n\n put_byte(ctx->pb, 0xff);\n\n\n\n for(i=0;ipb, 0xff);\n\n }\n\n\n\n if (startcode == PRIVATE_STREAM_1) {\n\n put_byte(ctx->pb, id);\n\n if (id >= 0xa0) {\n\n /* LPCM (XXX: check nb_frames) */\n\n put_byte(ctx->pb, 7);\n\n put_be16(ctx->pb, 4); /* skip 3 header bytes */\n\n put_byte(ctx->pb, stream->lpcm_header[0]);\n\n put_byte(ctx->pb, stream->lpcm_header[1]);\n\n put_byte(ctx->pb, stream->lpcm_header[2]);\n\n } else if (id >= 0x40) {\n\n /* AC3 */\n\n put_byte(ctx->pb, nb_frames);\n\n put_be16(ctx->pb, trailer_size+1);\n\n }\n\n }\n\n\n\n /* output data */\n\n if(av_fifo_generic_read(&stream->fifo, payload_size - stuffing_size, &put_buffer, ctx->pb) < 0)\n\n return -1;\n\n stream->bytes_to_iframe -= payload_size - stuffing_size;\n\n }else{\n\n payload_size=\n\n stuffing_size= 0;\n\n }\n\n\n\n if (pad_packet_bytes > 0)\n\n put_padding_packet(ctx,ctx->pb, pad_packet_bytes);\n\n\n\n for(i=0;ipb, 0x00);\n\n\n\n put_flush_packet(ctx->pb);\n\n\n\n s->packet_number++;\n\n\n\n /* only increase the stream packet number if this pack actually contains\n\n something that is specific to this stream! I.e. a dedicated header\n\n or some data.*/\n\n if (!general_pack)\n\n stream->packet_number++;\n\n\n\n return payload_size - stuffing_size;\n\n}\n", + "output": "1", + "index": 2679 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int h264_handle_packet(AVFormatContext *ctx,\n PayloadContext *data,\n AVStream *st,\n AVPacket * pkt,\n uint32_t * timestamp,\n const uint8_t * buf,\n int len, int flags)\n{\n uint8_t nal = buf[0];\n uint8_t type = (nal & 0x1f);\n int result= 0;\n uint8_t start_sequence[]= {0, 0, 1};\n#ifdef DEBUG\n assert(data);\n assert(data->cookie == MAGIC_COOKIE);\n#endif\n assert(buf);\n if (type >= 1 && type <= 23)\n type = 1; // simplify the case. (these are all the nal types used internally by the h264 codec)\n switch (type) {\n case 0: // undefined;\n result= -1;\n break;\n case 1:\n av_new_packet(pkt, len+sizeof(start_sequence));\n memcpy(pkt->data, start_sequence, sizeof(start_sequence));\n memcpy(pkt->data+sizeof(start_sequence), buf, len);\n#ifdef DEBUG\n data->packet_types_received[nal & 0x1f]++;\n#endif\n break;\n case 24: // STAP-A (one packet, multiple nals)\n // consume the STAP-A NAL\n buf++;\n len--;\n // first we are going to figure out the total size....\n {\n int pass= 0;\n int total_length= 0;\n uint8_t *dst= NULL;\n for(pass= 0; pass<2; pass++) {\n const uint8_t *src= buf;\n int src_len= len;\n do {\n uint16_t nal_size = AV_RB16(src); // this going to be a problem if unaligned (can it be?)\n // consume the length of the aggregate...\n src += 2;\n src_len -= 2;\n if (nal_size <= src_len) {\n if(pass==0) {\n // counting...\n total_length+= sizeof(start_sequence)+nal_size;\n } else {\n // copying\n assert(dst);\n memcpy(dst, start_sequence, sizeof(start_sequence));\n dst+= sizeof(start_sequence);\n memcpy(dst, src, nal_size);\n#ifdef DEBUG\n data->packet_types_received[*src & 0x1f]++;\n#endif\n dst+= nal_size;\n }\n } else {\n av_log(ctx, AV_LOG_ERROR,\n \"nal size exceeds length: %d %d\\n\", nal_size, src_len);\n }\n // eat what we handled...\n src += nal_size;\n src_len -= nal_size;\n if (src_len < 0)\n av_log(ctx, AV_LOG_ERROR,\n \"Consumed more bytes than we got! (%d)\\n\", src_len);\n } while (src_len > 2); // because there could be rtp padding..\n if(pass==0) {\n // now we know the total size of the packet (with the start sequences added)\n av_new_packet(pkt, total_length);\n dst= pkt->data;\n } else {\n assert(dst-pkt->data==total_length);\n }\n }\n }\n break;\n case 25: // STAP-B\n case 26: // MTAP-16\n case 27: // MTAP-24\n case 29: // FU-B\n av_log(ctx, AV_LOG_ERROR,\n \"Unhandled type (%d) (See RFC for implementation details\\n\",\n type);\n result= -1;\n break;\n case 28: // FU-A (fragmented nal)\n buf++;\n len--; // skip the fu_indicator\n {\n // these are the same as above, we just redo them here for clarity...\n uint8_t fu_indicator = nal;\n uint8_t fu_header = *buf; // read the fu_header.\n uint8_t start_bit = fu_header >> 7;\n// uint8_t end_bit = (fu_header & 0x40) >> 6;\n uint8_t nal_type = (fu_header & 0x1f);\n uint8_t reconstructed_nal;\n // reconstruct this packet's true nal; only the data follows..\n reconstructed_nal = fu_indicator & (0xe0); // the original nal forbidden bit and NRI are stored in this packet's nal;\n reconstructed_nal |= nal_type;\n // skip the fu_header...\n buf++;\n len--;\n#ifdef DEBUG\n if (start_bit)\n data->packet_types_received[nal_type]++;\n#endif\n if(start_bit) {\n // copy in the start sequence, and the reconstructed nal....\n av_new_packet(pkt, sizeof(start_sequence)+sizeof(nal)+len);\n memcpy(pkt->data, start_sequence, sizeof(start_sequence));\n pkt->data[sizeof(start_sequence)]= reconstructed_nal;\n memcpy(pkt->data+sizeof(start_sequence)+sizeof(nal), buf, len);\n } else {\n av_new_packet(pkt, len);\n memcpy(pkt->data, buf, len);\n }\n }\n break;\n case 30: // undefined\n case 31: // undefined\n default:\n av_log(ctx, AV_LOG_ERROR, \"Undefined type (%d)\", type);\n result= -1;\n break;\n }\n return result;\n}", + "output": "1", + "index": 8519 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int encode_tile(Jpeg2000EncoderContext *s, Jpeg2000Tile *tile, int tileno)\n\n{\n\n int compno, reslevelno, bandno, ret;\n\n Jpeg2000T1Context t1;\n\n Jpeg2000CodingStyle *codsty = &s->codsty;\n\n for (compno = 0; compno < s->ncomponents; compno++){\n\n Jpeg2000Component *comp = s->tile[tileno].comp + compno;\n\n\n\n av_log(s->avctx, AV_LOG_DEBUG,\"dwt\\n\");\n\n if ((ret = ff_dwt_encode(&comp->dwt, comp->i_data)) < 0)\n\n return ret;\n\n av_log(s->avctx, AV_LOG_DEBUG,\"after dwt -> tier1\\n\");\n\n\n\n for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++){\n\n Jpeg2000ResLevel *reslevel = comp->reslevel + reslevelno;\n\n\n\n for (bandno = 0; bandno < reslevel->nbands ; bandno++){\n\n Jpeg2000Band *band = reslevel->band + bandno;\n\n Jpeg2000Prec *prec = band->prec; // we support only 1 precinct per band ATM in the encoder\n\n int cblkx, cblky, cblkno=0, xx0, x0, xx1, y0, yy0, yy1, bandpos;\n\n yy0 = bandno == 0 ? 0 : comp->reslevel[reslevelno-1].coord[1][1] - comp->reslevel[reslevelno-1].coord[1][0];\n\n y0 = yy0;\n\n yy1 = FFMIN(ff_jpeg2000_ceildivpow2(band->coord[1][0] + 1, band->log2_cblk_height) << band->log2_cblk_height,\n\n band->coord[1][1]) - band->coord[1][0] + yy0;\n\n\n\n if (band->coord[0][0] == band->coord[0][1] || band->coord[1][0] == band->coord[1][1])\n\n continue;\n\n\n\n bandpos = bandno + (reslevelno > 0);\n\n\n\n for (cblky = 0; cblky < prec->nb_codeblocks_height; cblky++){\n\n if (reslevelno == 0 || bandno == 1)\n\n xx0 = 0;\n\n else\n\n xx0 = comp->reslevel[reslevelno-1].coord[0][1] - comp->reslevel[reslevelno-1].coord[0][0];\n\n x0 = xx0;\n\n xx1 = FFMIN(ff_jpeg2000_ceildivpow2(band->coord[0][0] + 1, band->log2_cblk_width) << band->log2_cblk_width,\n\n band->coord[0][1]) - band->coord[0][0] + xx0;\n\n\n\n for (cblkx = 0; cblkx < prec->nb_codeblocks_width; cblkx++, cblkno++){\n\n int y, x;\n\n if (codsty->transform == FF_DWT53){\n\n for (y = yy0; y < yy1; y++){\n\n int *ptr = t1.data[y-yy0];\n\n for (x = xx0; x < xx1; x++){\n\n *ptr++ = comp->i_data[(comp->coord[0][1] - comp->coord[0][0]) * y + x] << NMSEDEC_FRACBITS;\n\n }\n\n }\n\n } else{\n\n for (y = yy0; y < yy1; y++){\n\n int *ptr = t1.data[y-yy0];\n\n for (x = xx0; x < xx1; x++){\n\n *ptr = (comp->i_data[(comp->coord[0][1] - comp->coord[0][0]) * y + x]);\n\n *ptr = (int64_t)*ptr * (int64_t)(16384 * 65536 / band->i_stepsize) >> 15 - NMSEDEC_FRACBITS;\n\n ptr++;\n\n }\n\n }\n\n }\n\n encode_cblk(s, &t1, prec->cblk + cblkno, tile, xx1 - xx0, yy1 - yy0,\n\n bandpos, codsty->nreslevels - reslevelno - 1);\n\n xx0 = xx1;\n\n xx1 = FFMIN(xx1 + (1 << band->log2_cblk_width), band->coord[0][1] - band->coord[0][0] + x0);\n\n }\n\n yy0 = yy1;\n\n yy1 = FFMIN(yy1 + (1 << band->log2_cblk_height), band->coord[1][1] - band->coord[1][0] + y0);\n\n }\n\n }\n\n }\n\n av_log(s->avctx, AV_LOG_DEBUG, \"after tier1\\n\");\n\n }\n\n\n\n av_log(s->avctx, AV_LOG_DEBUG, \"rate control\\n\");\n\n truncpasses(s, tile);\n\n if ((ret = encode_packets(s, tile, tileno)) < 0)\n\n return ret;\n\n av_log(s->avctx, AV_LOG_DEBUG, \"after rate control\\n\");\n\n return 0;\n\n}\n", + "output": "0", + "index": 26422 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static av_cold int tta_decode_init(AVCodecContext * avctx)\n\n{\n\n TTAContext *s = avctx->priv_data;\n\n int total_frames;\n\n\n\n s->avctx = avctx;\n\n\n\n // 30bytes includes TTA1 header\n\n if (avctx->extradata_size < 22)\n\n return AVERROR_INVALIDDATA;\n\n\n\n init_get_bits(&s->gb, avctx->extradata, avctx->extradata_size * 8);\n\n if (show_bits_long(&s->gb, 32) == AV_RL32(\"TTA1\"))\n\n {\n\n if (avctx->err_recognition & AV_EF_CRCCHECK) {\n\n s->crc_table = av_crc_get_table(AV_CRC_32_IEEE_LE);\n\n tta_check_crc(s, avctx->extradata, 18);\n\n }\n\n\n\n /* signature */\n\n skip_bits_long(&s->gb, 32);\n\n\n\n s->format = get_bits(&s->gb, 16);\n\n if (s->format > 2) {\n\n av_log(avctx, AV_LOG_ERROR, \"Invalid format\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n if (s->format == FORMAT_ENCRYPTED) {\n\n if (!s->pass) {\n\n av_log(avctx, AV_LOG_ERROR, \"Missing password for encrypted stream. Please use the -password option\\n\");\n\n return AVERROR(EINVAL);\n\n }\n\n AV_WL64(s->crc_pass, tta_check_crc64(s->pass));\n\n }\n\n avctx->channels = s->channels = get_bits(&s->gb, 16);\n\n if (s->channels > 1 && s->channels < 9)\n\n avctx->channel_layout = tta_channel_layouts[s->channels-2];\n\n avctx->bits_per_raw_sample = get_bits(&s->gb, 16);\n\n s->bps = (avctx->bits_per_raw_sample + 7) / 8;\n\n avctx->sample_rate = get_bits_long(&s->gb, 32);\n\n s->data_length = get_bits_long(&s->gb, 32);\n\n skip_bits_long(&s->gb, 32); // CRC32 of header\n\n\n\n if (s->channels == 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"Invalid number of channels\\n\");\n\n return AVERROR_INVALIDDATA;\n\n } else if (avctx->sample_rate == 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"Invalid samplerate\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n switch(s->bps) {\n\n case 1: avctx->sample_fmt = AV_SAMPLE_FMT_U8; break;\n\n case 2:\n\n avctx->sample_fmt = AV_SAMPLE_FMT_S16;\n\n break;\n\n case 3:\n\n avctx->sample_fmt = AV_SAMPLE_FMT_S32;\n\n break;\n\n //case 4: avctx->sample_fmt = AV_SAMPLE_FMT_S32; break;\n\n default:\n\n av_log(avctx, AV_LOG_ERROR, \"Invalid/unsupported sample format.\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n // prevent overflow\n\n if (avctx->sample_rate > 0x7FFFFFu) {\n\n av_log(avctx, AV_LOG_ERROR, \"sample_rate too large\\n\");\n\n return AVERROR(EINVAL);\n\n }\n\n s->frame_length = 256 * avctx->sample_rate / 245;\n\n\n\n s->last_frame_length = s->data_length % s->frame_length;\n\n total_frames = s->data_length / s->frame_length +\n\n (s->last_frame_length ? 1 : 0);\n\n\n\n av_log(avctx, AV_LOG_DEBUG, \"format: %d chans: %d bps: %d rate: %d block: %d\\n\",\n\n s->format, avctx->channels, avctx->bits_per_coded_sample, avctx->sample_rate,\n\n avctx->block_align);\n\n av_log(avctx, AV_LOG_DEBUG, \"data_length: %d frame_length: %d last: %d total: %d\\n\",\n\n s->data_length, s->frame_length, s->last_frame_length, total_frames);\n\n\n\n if(s->frame_length >= UINT_MAX / (s->channels * sizeof(int32_t))){\n\n av_log(avctx, AV_LOG_ERROR, \"frame_length too large\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n if (s->bps < 3) {\n\n s->decode_buffer = av_mallocz(sizeof(int32_t)*s->frame_length*s->channels);\n\n if (!s->decode_buffer)\n\n return AVERROR(ENOMEM);\n\n } else\n\n s->decode_buffer = NULL;\n\n s->ch_ctx = av_malloc(avctx->channels * sizeof(*s->ch_ctx));\n\n if (!s->ch_ctx) {\n\n av_freep(&s->decode_buffer);\n\n return AVERROR(ENOMEM);\n\n }\n\n } else {\n\n av_log(avctx, AV_LOG_ERROR, \"Wrong extradata present\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n return 0;\n\n}\n", + "output": "0", + "index": 20325 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void xhci_process_commands(XHCIState *xhci)\n\n{\n\n XHCITRB trb;\n\n TRBType type;\n\n XHCIEvent event = {ER_COMMAND_COMPLETE, CC_SUCCESS};\n\n dma_addr_t addr;\n\n unsigned int i, slotid = 0;\n\n\n\n DPRINTF(\"xhci_process_commands()\\n\");\n\n if (!xhci_running(xhci)) {\n\n DPRINTF(\"xhci_process_commands() called while xHC stopped or paused\\n\");\n\n return;\n\n }\n\n\n\n xhci->crcr_low |= CRCR_CRR;\n\n\n\n while ((type = xhci_ring_fetch(xhci, &xhci->cmd_ring, &trb, &addr))) {\n\n event.ptr = addr;\n\n switch (type) {\n\n case CR_ENABLE_SLOT:\n\n for (i = 0; i < xhci->numslots; i++) {\n\n if (!xhci->slots[i].enabled) {\n\n break;\n\n }\n\n }\n\n if (i >= xhci->numslots) {\n\n DPRINTF(\"xhci: no device slots available\\n\");\n\n event.ccode = CC_NO_SLOTS_ERROR;\n\n } else {\n\n slotid = i+1;\n\n event.ccode = xhci_enable_slot(xhci, slotid);\n\n }\n\n break;\n\n case CR_DISABLE_SLOT:\n\n slotid = xhci_get_slot(xhci, &event, &trb);\n\n if (slotid) {\n\n event.ccode = xhci_disable_slot(xhci, slotid);\n\n }\n\n break;\n\n case CR_ADDRESS_DEVICE:\n\n slotid = xhci_get_slot(xhci, &event, &trb);\n\n if (slotid) {\n\n event.ccode = xhci_address_slot(xhci, slotid, trb.parameter,\n\n trb.control & TRB_CR_BSR);\n\n }\n\n break;\n\n case CR_CONFIGURE_ENDPOINT:\n\n slotid = xhci_get_slot(xhci, &event, &trb);\n\n if (slotid) {\n\n event.ccode = xhci_configure_slot(xhci, slotid, trb.parameter,\n\n trb.control & TRB_CR_DC);\n\n }\n\n break;\n\n case CR_EVALUATE_CONTEXT:\n\n slotid = xhci_get_slot(xhci, &event, &trb);\n\n if (slotid) {\n\n event.ccode = xhci_evaluate_slot(xhci, slotid, trb.parameter);\n\n }\n\n break;\n\n case CR_STOP_ENDPOINT:\n\n slotid = xhci_get_slot(xhci, &event, &trb);\n\n if (slotid) {\n\n unsigned int epid = (trb.control >> TRB_CR_EPID_SHIFT)\n\n & TRB_CR_EPID_MASK;\n\n event.ccode = xhci_stop_ep(xhci, slotid, epid);\n\n }\n\n break;\n\n case CR_RESET_ENDPOINT:\n\n slotid = xhci_get_slot(xhci, &event, &trb);\n\n if (slotid) {\n\n unsigned int epid = (trb.control >> TRB_CR_EPID_SHIFT)\n\n & TRB_CR_EPID_MASK;\n\n event.ccode = xhci_reset_ep(xhci, slotid, epid);\n\n }\n\n break;\n\n case CR_SET_TR_DEQUEUE:\n\n slotid = xhci_get_slot(xhci, &event, &trb);\n\n if (slotid) {\n\n unsigned int epid = (trb.control >> TRB_CR_EPID_SHIFT)\n\n & TRB_CR_EPID_MASK;\n\n unsigned int streamid = (trb.status >> 16) & 0xffff;\n\n event.ccode = xhci_set_ep_dequeue(xhci, slotid,\n\n epid, streamid,\n\n trb.parameter);\n\n }\n\n break;\n\n case CR_RESET_DEVICE:\n\n slotid = xhci_get_slot(xhci, &event, &trb);\n\n if (slotid) {\n\n event.ccode = xhci_reset_slot(xhci, slotid);\n\n }\n\n break;\n\n case CR_GET_PORT_BANDWIDTH:\n\n event.ccode = xhci_get_port_bandwidth(xhci, trb.parameter);\n\n break;\n\n case CR_VENDOR_VIA_CHALLENGE_RESPONSE:\n\n xhci_via_challenge(xhci, trb.parameter);\n\n break;\n\n case CR_VENDOR_NEC_FIRMWARE_REVISION:\n\n event.type = 48; /* NEC reply */\n\n event.length = 0x3025;\n\n break;\n\n case CR_VENDOR_NEC_CHALLENGE_RESPONSE:\n\n {\n\n uint32_t chi = trb.parameter >> 32;\n\n uint32_t clo = trb.parameter;\n\n uint32_t val = xhci_nec_challenge(chi, clo);\n\n event.length = val & 0xFFFF;\n\n event.epid = val >> 16;\n\n slotid = val >> 24;\n\n event.type = 48; /* NEC reply */\n\n }\n\n break;\n\n default:\n\n trace_usb_xhci_unimplemented(\"command\", type);\n\n event.ccode = CC_TRB_ERROR;\n\n break;\n\n }\n\n event.slotid = slotid;\n\n xhci_event(xhci, &event, 0);\n\n }\n\n}\n", + "output": "1", + "index": 21634 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int flic_decode_frame_15_16BPP(AVCodecContext *avctx,\n\n void *data, int *got_frame,\n\n const uint8_t *buf, int buf_size)\n\n{\n\n /* Note, the only difference between the 15Bpp and 16Bpp */\n\n /* Format is the pixel format, the packets are processed the same. */\n\n FlicDecodeContext *s = avctx->priv_data;\n\n\n\n GetByteContext g2;\n\n int pixel_ptr;\n\n unsigned char palette_idx1;\n\n\n\n unsigned int frame_size;\n\n int num_chunks;\n\n\n\n unsigned int chunk_size;\n\n int chunk_type;\n\n\n\n int i, j, ret;\n\n\n\n int lines;\n\n int compressed_lines;\n\n signed short line_packets;\n\n int y_ptr;\n\n int byte_run;\n\n int pixel_skip;\n\n int pixel_countdown;\n\n unsigned char *pixels;\n\n int pixel;\n\n unsigned int pixel_limit;\n\n\n\n bytestream2_init(&g2, buf, buf_size);\n\n\n\n if ((ret = ff_reget_buffer(avctx, &s->frame)) < 0)\n\n return ret;\n\n\n\n pixels = s->frame.data[0];\n\n pixel_limit = s->avctx->height * s->frame.linesize[0];\n\n\n\n frame_size = bytestream2_get_le32(&g2);\n\n bytestream2_skip(&g2, 2); /* skip the magic number */\n\n num_chunks = bytestream2_get_le16(&g2);\n\n bytestream2_skip(&g2, 8); /* skip padding */\n\n if (frame_size > buf_size)\n\n frame_size = buf_size;\n\n\n\n frame_size -= 16;\n\n\n\n /* iterate through the chunks */\n\n while ((frame_size > 0) && (num_chunks > 0)) {\n\n int stream_ptr_after_chunk;\n\n chunk_size = bytestream2_get_le32(&g2);\n\n if (chunk_size > frame_size) {\n\n av_log(avctx, AV_LOG_WARNING,\n\n \"Invalid chunk_size = %u > frame_size = %u\\n\", chunk_size, frame_size);\n\n chunk_size = frame_size;\n\n }\n\n stream_ptr_after_chunk = bytestream2_tell(&g2) - 4 + chunk_size;\n\n\n\n chunk_type = bytestream2_get_le16(&g2);\n\n\n\n\n\n switch (chunk_type) {\n\n case FLI_256_COLOR:\n\n case FLI_COLOR:\n\n /* For some reason, it seems that non-palettized flics do\n\n * include one of these chunks in their first frame.\n\n * Why I do not know, it seems rather extraneous. */\n\n av_dlog(avctx,\n\n \"Unexpected Palette chunk %d in non-palettized FLC\\n\",\n\n chunk_type);\n\n bytestream2_skip(&g2, chunk_size - 6);\n\n break;\n\n\n\n case FLI_DELTA:\n\n case FLI_DTA_LC:\n\n y_ptr = 0;\n\n compressed_lines = bytestream2_get_le16(&g2);\n\n while (compressed_lines > 0) {\n\n if (bytestream2_tell(&g2) + 2 > stream_ptr_after_chunk)\n\n break;\n\n line_packets = bytestream2_get_le16(&g2);\n\n if (line_packets < 0) {\n\n line_packets = -line_packets;\n\n y_ptr += line_packets * s->frame.linesize[0];\n\n } else {\n\n compressed_lines--;\n\n pixel_ptr = y_ptr;\n\n CHECK_PIXEL_PTR(0);\n\n pixel_countdown = s->avctx->width;\n\n for (i = 0; i < line_packets; i++) {\n\n /* account for the skip bytes */\n\n if (bytestream2_tell(&g2) + 2 > stream_ptr_after_chunk)\n\n break;\n\n pixel_skip = bytestream2_get_byte(&g2);\n\n pixel_ptr += (pixel_skip*2); /* Pixel is 2 bytes wide */\n\n pixel_countdown -= pixel_skip;\n\n byte_run = sign_extend(bytestream2_get_byte(&g2), 8);\n\n if (byte_run < 0) {\n\n byte_run = -byte_run;\n\n pixel = bytestream2_get_le16(&g2);\n\n CHECK_PIXEL_PTR(2 * byte_run);\n\n for (j = 0; j < byte_run; j++, pixel_countdown -= 2) {\n\n *((signed short*)(&pixels[pixel_ptr])) = pixel;\n\n pixel_ptr += 2;\n\n }\n\n } else {\n\n if (bytestream2_tell(&g2) + 2*byte_run > stream_ptr_after_chunk)\n\n break;\n\n CHECK_PIXEL_PTR(2 * byte_run);\n\n for (j = 0; j < byte_run; j++, pixel_countdown--) {\n\n *((signed short*)(&pixels[pixel_ptr])) = bytestream2_get_le16(&g2);\n\n pixel_ptr += 2;\n\n }\n\n }\n\n }\n\n\n\n y_ptr += s->frame.linesize[0];\n\n }\n\n }\n\n break;\n\n\n\n case FLI_LC:\n\n av_log(avctx, AV_LOG_ERROR, \"Unexpected FLI_LC chunk in non-palettized FLC\\n\");\n\n bytestream2_skip(&g2, chunk_size - 6);\n\n break;\n\n\n\n case FLI_BLACK:\n\n /* set the whole frame to 0x0000 which is black in both 15Bpp and 16Bpp modes. */\n\n memset(pixels, 0x0000,\n\n s->frame.linesize[0] * s->avctx->height);\n\n break;\n\n\n\n case FLI_BRUN:\n\n y_ptr = 0;\n\n for (lines = 0; lines < s->avctx->height; lines++) {\n\n pixel_ptr = y_ptr;\n\n /* disregard the line packets; instead, iterate through all\n\n * pixels on a row */\n\n bytestream2_skip(&g2, 1);\n\n pixel_countdown = (s->avctx->width * 2);\n\n\n\n while (pixel_countdown > 0) {\n\n if (bytestream2_tell(&g2) + 1 > stream_ptr_after_chunk)\n\n break;\n\n byte_run = sign_extend(bytestream2_get_byte(&g2), 8);\n\n if (byte_run > 0) {\n\n palette_idx1 = bytestream2_get_byte(&g2);\n\n CHECK_PIXEL_PTR(byte_run);\n\n for (j = 0; j < byte_run; j++) {\n\n pixels[pixel_ptr++] = palette_idx1;\n\n pixel_countdown--;\n\n if (pixel_countdown < 0)\n\n av_log(avctx, AV_LOG_ERROR, \"pixel_countdown < 0 (%d) (linea%d)\\n\",\n\n pixel_countdown, lines);\n\n }\n\n } else { /* copy bytes if byte_run < 0 */\n\n byte_run = -byte_run;\n\n if (bytestream2_tell(&g2) + byte_run > stream_ptr_after_chunk)\n\n break;\n\n CHECK_PIXEL_PTR(byte_run);\n\n for (j = 0; j < byte_run; j++) {\n\n palette_idx1 = bytestream2_get_byte(&g2);\n\n pixels[pixel_ptr++] = palette_idx1;\n\n pixel_countdown--;\n\n if (pixel_countdown < 0)\n\n av_log(avctx, AV_LOG_ERROR, \"pixel_countdown < 0 (%d) at line %d\\n\",\n\n pixel_countdown, lines);\n\n }\n\n }\n\n }\n\n\n\n /* Now FLX is strange, in that it is \"byte\" as opposed to \"pixel\" run length compressed.\n\n * This does not give us any good opportunity to perform word endian conversion\n\n * during decompression. So if it is required (i.e., this is not a LE target, we do\n\n * a second pass over the line here, swapping the bytes.\n\n */\n\n#if HAVE_BIGENDIAN\n\n pixel_ptr = y_ptr;\n\n pixel_countdown = s->avctx->width;\n\n while (pixel_countdown > 0) {\n\n *((signed short*)(&pixels[pixel_ptr])) = AV_RL16(&buf[pixel_ptr]);\n\n pixel_ptr += 2;\n\n }\n\n#endif\n\n y_ptr += s->frame.linesize[0];\n\n }\n\n break;\n\n\n\n case FLI_DTA_BRUN:\n\n y_ptr = 0;\n\n for (lines = 0; lines < s->avctx->height; lines++) {\n\n pixel_ptr = y_ptr;\n\n /* disregard the line packets; instead, iterate through all\n\n * pixels on a row */\n\n bytestream2_skip(&g2, 1);\n\n pixel_countdown = s->avctx->width; /* Width is in pixels, not bytes */\n\n\n\n while (pixel_countdown > 0) {\n\n if (bytestream2_tell(&g2) + 1 > stream_ptr_after_chunk)\n\n break;\n\n byte_run = sign_extend(bytestream2_get_byte(&g2), 8);\n\n if (byte_run > 0) {\n\n pixel = bytestream2_get_le16(&g2);\n\n CHECK_PIXEL_PTR(2 * byte_run);\n\n for (j = 0; j < byte_run; j++) {\n\n *((signed short*)(&pixels[pixel_ptr])) = pixel;\n\n pixel_ptr += 2;\n\n pixel_countdown--;\n\n if (pixel_countdown < 0)\n\n av_log(avctx, AV_LOG_ERROR, \"pixel_countdown < 0 (%d)\\n\",\n\n pixel_countdown);\n\n }\n\n } else { /* copy pixels if byte_run < 0 */\n\n byte_run = -byte_run;\n\n if (bytestream2_tell(&g2) + 2 * byte_run > stream_ptr_after_chunk)\n\n break;\n\n CHECK_PIXEL_PTR(2 * byte_run);\n\n for (j = 0; j < byte_run; j++) {\n\n *((signed short*)(&pixels[pixel_ptr])) = bytestream2_get_le16(&g2);\n\n pixel_ptr += 2;\n\n pixel_countdown--;\n\n if (pixel_countdown < 0)\n\n av_log(avctx, AV_LOG_ERROR, \"pixel_countdown < 0 (%d)\\n\",\n\n pixel_countdown);\n\n }\n\n }\n\n }\n\n\n\n y_ptr += s->frame.linesize[0];\n\n }\n\n break;\n\n\n\n case FLI_COPY:\n\n case FLI_DTA_COPY:\n\n /* copy the chunk (uncompressed frame) */\n\n if (chunk_size - 6 > (unsigned int)(s->avctx->width * s->avctx->height)*2) {\n\n av_log(avctx, AV_LOG_ERROR, \"In chunk FLI_COPY : source data (%d bytes) \" \\\n\n \"bigger than image, skipping chunk\\n\", chunk_size - 6);\n\n bytestream2_skip(&g2, chunk_size - 6);\n\n } else {\n\n\n\n for (y_ptr = 0; y_ptr < s->frame.linesize[0] * s->avctx->height;\n\n y_ptr += s->frame.linesize[0]) {\n\n\n\n pixel_countdown = s->avctx->width;\n\n pixel_ptr = 0;\n\n while (pixel_countdown > 0) {\n\n *((signed short*)(&pixels[y_ptr + pixel_ptr])) = bytestream2_get_le16(&g2);\n\n pixel_ptr += 2;\n\n pixel_countdown--;\n\n }\n\n }\n\n }\n\n break;\n\n\n\n case FLI_MINI:\n\n /* some sort of a thumbnail? disregard this chunk... */\n\n bytestream2_skip(&g2, chunk_size - 6);\n\n break;\n\n\n\n default:\n\n av_log(avctx, AV_LOG_ERROR, \"Unrecognized chunk type: %d\\n\", chunk_type);\n\n break;\n\n }\n\n\n\n frame_size -= chunk_size;\n\n num_chunks--;\n\n }\n\n\n\n /* by the end of the chunk, the stream ptr should equal the frame\n\n * size (minus 1, possibly); if it doesn't, issue a warning */\n\n if ((bytestream2_get_bytes_left(&g2) != 0) && (bytestream2_get_bytes_left(&g2) != 1))\n\n av_log(avctx, AV_LOG_ERROR, \"Processed FLI chunk where chunk size = %d \" \\\n\n \"and final chunk ptr = %d\\n\", buf_size, bytestream2_tell(&g2));\n\n\n\n if ((ret = av_frame_ref(data, &s->frame)) < 0)\n\n return ret;\n\n\n\n *got_frame = 1;\n\n\n\n return buf_size;\n\n}\n", + "output": "0", + "index": 13250 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int ws_snd_decode_frame(AVCodecContext *avctx, void *data,\n\n int *got_frame_ptr, AVPacket *avpkt)\n\n{\n\n WSSndContext *s = avctx->priv_data;\n\n const uint8_t *buf = avpkt->data;\n\n int buf_size = avpkt->size;\n\n\n\n int in_size, out_size, ret;\n\n int sample = 128;\n\n uint8_t *samples;\n\n uint8_t *samples_end;\n\n\n\n if (!buf_size)\n\n return 0;\n\n\n\n if (buf_size < 4) {\n\n av_log(avctx, AV_LOG_ERROR, \"packet is too small\\n\");\n\n return AVERROR(EINVAL);\n\n }\n\n\n\n out_size = AV_RL16(&buf[0]);\n\n in_size = AV_RL16(&buf[2]);\n\n buf += 4;\n\n\n\n if (in_size > buf_size) {\n\n av_log(avctx, AV_LOG_ERROR, \"Frame data is larger than input buffer\\n\");\n\n return -1;\n\n }\n\n\n\n /* get output buffer */\n\n s->frame.nb_samples = out_size;\n\n if ((ret = avctx->get_buffer(avctx, &s->frame)) < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"get_buffer() failed\\n\");\n\n return ret;\n\n }\n\n samples = s->frame.data[0];\n\n samples_end = samples + out_size;\n\n\n\n if (in_size == out_size) {\n\n memcpy(samples, buf, out_size);\n\n *got_frame_ptr = 1;\n\n *(AVFrame *)data = s->frame;\n\n return buf_size;\n\n }\n\n\n\n while (samples < samples_end && buf - avpkt->data < buf_size) {\n\n int code, smp, size;\n\n uint8_t count;\n\n code = *buf >> 6;\n\n count = *buf & 0x3F;\n\n buf++;\n\n\n\n /* make sure we don't write past the output buffer */\n\n switch (code) {\n\n case 0: smp = 4; break;\n\n case 1: smp = 2; break;\n\n case 2: smp = (count & 0x20) ? 1 : count + 1; break;\n\n default: smp = count + 1; break;\n\n }\n\n if (samples_end - samples < smp)\n\n break;\n\n\n\n /* make sure we don't read past the input buffer */\n\n size = ((code == 2 && (count & 0x20)) || code == 3) ? 0 : count + 1;\n\n if ((buf - avpkt->data) + size > buf_size)\n\n break;\n\n\n\n switch (code) {\n\n case 0: /* ADPCM 2-bit */\n\n for (count++; count > 0; count--) {\n\n code = *buf++;\n\n sample += ( code & 0x3) - 2;\n\n sample = av_clip_uint8(sample);\n\n *samples++ = sample;\n\n sample += ((code >> 2) & 0x3) - 2;\n\n sample = av_clip_uint8(sample);\n\n *samples++ = sample;\n\n sample += ((code >> 4) & 0x3) - 2;\n\n sample = av_clip_uint8(sample);\n\n *samples++ = sample;\n\n sample += (code >> 6) - 2;\n\n sample = av_clip_uint8(sample);\n\n *samples++ = sample;\n\n }\n\n break;\n\n case 1: /* ADPCM 4-bit */\n\n for (count++; count > 0; count--) {\n\n code = *buf++;\n\n sample += ws_adpcm_4bit[code & 0xF];\n\n sample = av_clip_uint8(sample);\n\n *samples++ = sample;\n\n sample += ws_adpcm_4bit[code >> 4];\n\n sample = av_clip_uint8(sample);\n\n *samples++ = sample;\n\n }\n\n break;\n\n case 2: /* no compression */\n\n if (count & 0x20) { /* big delta */\n\n int8_t t;\n\n t = count;\n\n t <<= 3;\n\n sample += t >> 3;\n\n sample = av_clip_uint8(sample);\n\n *samples++ = sample;\n\n } else { /* copy */\n\n memcpy(samples, buf, smp);\n\n samples += smp;\n\n buf += smp;\n\n sample = buf[-1];\n\n }\n\n break;\n\n default: /* run */\n\n memset(samples, sample, smp);\n\n samples += smp;\n\n }\n\n }\n\n\n\n s->frame.nb_samples = samples - s->frame.data[0];\n\n *got_frame_ptr = 1;\n\n *(AVFrame *)data = s->frame;\n\n\n\n return buf_size;\n\n}\n", + "output": "1", + "index": 20606 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int init_prec(Jpeg2000Band *band,\n\n Jpeg2000ResLevel *reslevel,\n\n Jpeg2000Component *comp,\n\n int precno, int bandno, int reslevelno,\n\n int log2_band_prec_width,\n\n int log2_band_prec_height)\n\n{\n\n Jpeg2000Prec *prec = band->prec + precno;\n\n int nb_codeblocks, cblkno;\n\n\n\n prec->decoded_layers = 0;\n\n\n\n /* TODO: Explain formula for JPEG200 DCINEMA. */\n\n /* TODO: Verify with previous count of codeblocks per band */\n\n\n\n /* Compute P_x0 */\n\n prec->coord[0][0] = ((band->coord[0][0] >> log2_band_prec_width) + precno % reslevel->num_precincts_x) *\n\n (1 << log2_band_prec_width);\n\n\n\n /* Compute P_y0 */\n\n prec->coord[1][0] = ((band->coord[1][0] >> log2_band_prec_height) + precno / reslevel->num_precincts_x) *\n\n (1 << log2_band_prec_height);\n\n\n\n /* Compute P_x1 */\n\n prec->coord[0][1] = prec->coord[0][0] +\n\n (1 << log2_band_prec_width);\n\n prec->coord[0][0] = FFMAX(prec->coord[0][0], band->coord[0][0]);\n\n prec->coord[0][1] = FFMIN(prec->coord[0][1], band->coord[0][1]);\n\n\n\n /* Compute P_y1 */\n\n prec->coord[1][1] = prec->coord[1][0] +\n\n (1 << log2_band_prec_height);\n\n prec->coord[1][0] = FFMAX(prec->coord[1][0], band->coord[1][0]);\n\n prec->coord[1][1] = FFMIN(prec->coord[1][1], band->coord[1][1]);\n\n\n\n prec->nb_codeblocks_width =\n\n ff_jpeg2000_ceildivpow2(prec->coord[0][1],\n\n band->log2_cblk_width)\n\n - (prec->coord[0][0] >> band->log2_cblk_width);\n\n prec->nb_codeblocks_height =\n\n ff_jpeg2000_ceildivpow2(prec->coord[1][1],\n\n band->log2_cblk_height)\n\n - (prec->coord[1][0] >> band->log2_cblk_height);\n\n\n\n\n\n /* Tag trees initialization */\n\n prec->cblkincl =\n\n ff_jpeg2000_tag_tree_init(prec->nb_codeblocks_width,\n\n prec->nb_codeblocks_height);\n\n if (!prec->cblkincl)\n\n return AVERROR(ENOMEM);\n\n\n\n prec->zerobits =\n\n ff_jpeg2000_tag_tree_init(prec->nb_codeblocks_width,\n\n prec->nb_codeblocks_height);\n\n if (!prec->zerobits)\n\n return AVERROR(ENOMEM);\n\n\n\n if (prec->nb_codeblocks_width * (uint64_t)prec->nb_codeblocks_height > INT_MAX) {\n\n prec->cblk = NULL;\n\n return AVERROR(ENOMEM);\n\n }\n\n nb_codeblocks = prec->nb_codeblocks_width * prec->nb_codeblocks_height;\n\n prec->cblk = av_mallocz_array(nb_codeblocks, sizeof(*prec->cblk));\n\n if (!prec->cblk)\n\n return AVERROR(ENOMEM);\n\n for (cblkno = 0; cblkno < nb_codeblocks; cblkno++) {\n\n Jpeg2000Cblk *cblk = prec->cblk + cblkno;\n\n int Cx0, Cy0;\n\n\n\n /* Compute coordinates of codeblocks */\n\n /* Compute Cx0*/\n\n Cx0 = ((prec->coord[0][0]) >> band->log2_cblk_width) << band->log2_cblk_width;\n\n Cx0 = Cx0 + ((cblkno % prec->nb_codeblocks_width) << band->log2_cblk_width);\n\n cblk->coord[0][0] = FFMAX(Cx0, prec->coord[0][0]);\n\n\n\n /* Compute Cy0*/\n\n Cy0 = ((prec->coord[1][0]) >> band->log2_cblk_height) << band->log2_cblk_height;\n\n Cy0 = Cy0 + ((cblkno / prec->nb_codeblocks_width) << band->log2_cblk_height);\n\n cblk->coord[1][0] = FFMAX(Cy0, prec->coord[1][0]);\n\n\n\n /* Compute Cx1 */\n\n cblk->coord[0][1] = FFMIN(Cx0 + (1 << band->log2_cblk_width),\n\n prec->coord[0][1]);\n\n\n\n /* Compute Cy1 */\n\n cblk->coord[1][1] = FFMIN(Cy0 + (1 << band->log2_cblk_height),\n\n prec->coord[1][1]);\n\n /* Update code-blocks coordinates according sub-band position */\n\n if ((bandno + !!reslevelno) & 1) {\n\n cblk->coord[0][0] += comp->reslevel[reslevelno-1].coord[0][1] -\n\n comp->reslevel[reslevelno-1].coord[0][0];\n\n cblk->coord[0][1] += comp->reslevel[reslevelno-1].coord[0][1] -\n\n comp->reslevel[reslevelno-1].coord[0][0];\n\n }\n\n if ((bandno + !!reslevelno) & 2) {\n\n cblk->coord[1][0] += comp->reslevel[reslevelno-1].coord[1][1] -\n\n comp->reslevel[reslevelno-1].coord[1][0];\n\n cblk->coord[1][1] += comp->reslevel[reslevelno-1].coord[1][1] -\n\n comp->reslevel[reslevelno-1].coord[1][0];\n\n }\n\n\n\n cblk->zero = 0;\n\n cblk->lblock = 3;\n\n cblk->length = 0;\n\n memset(cblk->lengthinc, 0, sizeof(cblk->lengthinc));\n\n cblk->npasses = 0;\n\n }\n\n\n\n return 0;\n\n}\n", + "output": "1", + "index": 13553 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static av_cold int cook_decode_init(AVCodecContext *avctx)\n\n{\n\n COOKContext *q = avctx->priv_data;\n\n const uint8_t *edata_ptr = avctx->extradata;\n\n const uint8_t *edata_ptr_end = edata_ptr + avctx->extradata_size;\n\n int extradata_size = avctx->extradata_size;\n\n int s = 0;\n\n unsigned int channel_mask = 0;\n\n int samples_per_frame;\n\n int ret;\n\n q->avctx = avctx;\n\n\n\n /* Take care of the codec specific extradata. */\n\n if (extradata_size < 8) {\n\n av_log(avctx, AV_LOG_ERROR, \"Necessary extradata missing!\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n av_log(avctx, AV_LOG_DEBUG, \"codecdata_length=%d\\n\", avctx->extradata_size);\n\n\n\n /* Take data from the AVCodecContext (RM container). */\n\n if (!avctx->channels) {\n\n av_log(avctx, AV_LOG_ERROR, \"Invalid number of channels\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n /* Initialize RNG. */\n\n av_lfg_init(&q->random_state, 0);\n\n\n\n ff_audiodsp_init(&q->adsp);\n\n\n\n while (edata_ptr < edata_ptr_end) {\n\n /* 8 for mono, 16 for stereo, ? for multichannel\n\n Swap to right endianness so we don't need to care later on. */\n\n if (extradata_size >= 8) {\n\n q->subpacket[s].cookversion = bytestream_get_be32(&edata_ptr);\n\n samples_per_frame = bytestream_get_be16(&edata_ptr);\n\n q->subpacket[s].subbands = bytestream_get_be16(&edata_ptr);\n\n extradata_size -= 8;\n\n }\n\n if (extradata_size >= 8) {\n\n bytestream_get_be32(&edata_ptr); // Unknown unused\n\n q->subpacket[s].js_subband_start = bytestream_get_be16(&edata_ptr);\n\n q->subpacket[s].js_vlc_bits = bytestream_get_be16(&edata_ptr);\n\n extradata_size -= 8;\n\n }\n\n\n\n /* Initialize extradata related variables. */\n\n q->subpacket[s].samples_per_channel = samples_per_frame / avctx->channels;\n\n q->subpacket[s].bits_per_subpacket = avctx->block_align * 8;\n\n\n\n /* Initialize default data states. */\n\n q->subpacket[s].log2_numvector_size = 5;\n\n q->subpacket[s].total_subbands = q->subpacket[s].subbands;\n\n q->subpacket[s].num_channels = 1;\n\n\n\n /* Initialize version-dependent variables */\n\n\n\n av_log(avctx, AV_LOG_DEBUG, \"subpacket[%i].cookversion=%x\\n\", s,\n\n q->subpacket[s].cookversion);\n\n q->subpacket[s].joint_stereo = 0;\n\n switch (q->subpacket[s].cookversion) {\n\n case MONO:\n\n if (avctx->channels != 1) {\n\n avpriv_request_sample(avctx, \"Container channels != 1\");\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n av_log(avctx, AV_LOG_DEBUG, \"MONO\\n\");\n\n break;\n\n case STEREO:\n\n if (avctx->channels != 1) {\n\n q->subpacket[s].bits_per_subpdiv = 1;\n\n q->subpacket[s].num_channels = 2;\n\n }\n\n av_log(avctx, AV_LOG_DEBUG, \"STEREO\\n\");\n\n break;\n\n case JOINT_STEREO:\n\n if (avctx->channels != 2) {\n\n avpriv_request_sample(avctx, \"Container channels != 2\");\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n av_log(avctx, AV_LOG_DEBUG, \"JOINT_STEREO\\n\");\n\n if (avctx->extradata_size >= 16) {\n\n q->subpacket[s].total_subbands = q->subpacket[s].subbands +\n\n q->subpacket[s].js_subband_start;\n\n q->subpacket[s].joint_stereo = 1;\n\n q->subpacket[s].num_channels = 2;\n\n }\n\n if (q->subpacket[s].samples_per_channel > 256) {\n\n q->subpacket[s].log2_numvector_size = 6;\n\n }\n\n if (q->subpacket[s].samples_per_channel > 512) {\n\n q->subpacket[s].log2_numvector_size = 7;\n\n }\n\n break;\n\n case MC_COOK:\n\n av_log(avctx, AV_LOG_DEBUG, \"MULTI_CHANNEL\\n\");\n\n if (extradata_size >= 4)\n\n channel_mask |= q->subpacket[s].channel_mask = bytestream_get_be32(&edata_ptr);\n\n\n\n if (av_get_channel_layout_nb_channels(q->subpacket[s].channel_mask) > 1) {\n\n q->subpacket[s].total_subbands = q->subpacket[s].subbands +\n\n q->subpacket[s].js_subband_start;\n\n q->subpacket[s].joint_stereo = 1;\n\n q->subpacket[s].num_channels = 2;\n\n q->subpacket[s].samples_per_channel = samples_per_frame >> 1;\n\n\n\n if (q->subpacket[s].samples_per_channel > 256) {\n\n q->subpacket[s].log2_numvector_size = 6;\n\n }\n\n if (q->subpacket[s].samples_per_channel > 512) {\n\n q->subpacket[s].log2_numvector_size = 7;\n\n }\n\n } else\n\n q->subpacket[s].samples_per_channel = samples_per_frame;\n\n\n\n break;\n\n default:\n\n avpriv_request_sample(avctx, \"Cook version %d\",\n\n q->subpacket[s].cookversion);\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n\n\n if (s > 1 && q->subpacket[s].samples_per_channel != q->samples_per_channel) {\n\n av_log(avctx, AV_LOG_ERROR, \"different number of samples per channel!\\n\");\n\n return AVERROR_INVALIDDATA;\n\n } else\n\n q->samples_per_channel = q->subpacket[0].samples_per_channel;\n\n\n\n\n\n /* Initialize variable relations */\n\n q->subpacket[s].numvector_size = (1 << q->subpacket[s].log2_numvector_size);\n\n\n\n /* Try to catch some obviously faulty streams, otherwise it might be exploitable */\n\n if (q->subpacket[s].total_subbands > 53) {\n\n avpriv_request_sample(avctx, \"total_subbands > 53\");\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n\n\n if ((q->subpacket[s].js_vlc_bits > 6) ||\n\n (q->subpacket[s].js_vlc_bits < 2 * q->subpacket[s].joint_stereo)) {\n\n av_log(avctx, AV_LOG_ERROR, \"js_vlc_bits = %d, only >= %d and <= 6 allowed!\\n\",\n\n q->subpacket[s].js_vlc_bits, 2 * q->subpacket[s].joint_stereo);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n if (q->subpacket[s].subbands > 50) {\n\n avpriv_request_sample(avctx, \"subbands > 50\");\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n q->subpacket[s].gains1.now = q->subpacket[s].gain_1;\n\n q->subpacket[s].gains1.previous = q->subpacket[s].gain_2;\n\n q->subpacket[s].gains2.now = q->subpacket[s].gain_3;\n\n q->subpacket[s].gains2.previous = q->subpacket[s].gain_4;\n\n\n\n q->num_subpackets++;\n\n s++;\n\n if (s > MAX_SUBPACKETS) {\n\n avpriv_request_sample(avctx, \"subpackets > %d\", MAX_SUBPACKETS);\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n }\n\n /* Generate tables */\n\n init_pow2table();\n\n init_gain_table(q);\n\n init_cplscales_table(q);\n\n\n\n if ((ret = init_cook_vlc_tables(q)))\n\n return ret;\n\n\n\n\n\n if (avctx->block_align >= UINT_MAX / 2)\n\n return AVERROR(EINVAL);\n\n\n\n /* Pad the databuffer with:\n\n DECODE_BYTES_PAD1 or DECODE_BYTES_PAD2 for decode_bytes(),\n\n AV_INPUT_BUFFER_PADDING_SIZE, for the bitstreamreader. */\n\n q->decoded_bytes_buffer =\n\n av_mallocz(avctx->block_align\n\n + DECODE_BYTES_PAD1(avctx->block_align)\n\n + AV_INPUT_BUFFER_PADDING_SIZE);\n\n if (!q->decoded_bytes_buffer)\n\n return AVERROR(ENOMEM);\n\n\n\n /* Initialize transform. */\n\n if ((ret = init_cook_mlt(q)))\n\n return ret;\n\n\n\n /* Initialize COOK signal arithmetic handling */\n\n if (1) {\n\n q->scalar_dequant = scalar_dequant_float;\n\n q->decouple = decouple_float;\n\n q->imlt_window = imlt_window_float;\n\n q->interpolate = interpolate_float;\n\n q->saturate_output = saturate_output_float;\n\n }\n\n\n\n /* Try to catch some obviously faulty streams, otherwise it might be exploitable */\n\n if (q->samples_per_channel != 256 && q->samples_per_channel != 512 &&\n\n q->samples_per_channel != 1024) {\n\n avpriv_request_sample(avctx, \"samples_per_channel = %d\",\n\n q->samples_per_channel);\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n\n\n avctx->sample_fmt = AV_SAMPLE_FMT_FLTP;\n\n if (channel_mask)\n\n avctx->channel_layout = channel_mask;\n\n else\n\n avctx->channel_layout = (avctx->channels == 2) ? AV_CH_LAYOUT_STEREO : AV_CH_LAYOUT_MONO;\n\n\n\n#ifdef DEBUG\n\n dump_cook_context(q);\n\n#endif\n\n return 0;\n\n}\n", + "output": "1", + "index": 20695 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int mov_read_header(AVFormatContext *s)\n\n{\n\n MOVContext *mov = s->priv_data;\n\n AVIOContext *pb = s->pb;\n\n int j, err;\n\n MOVAtom atom = { AV_RL32(\"root\") };\n\n int i;\n\n\n\n if (mov->decryption_key_len != 0 && mov->decryption_key_len != AES_CTR_KEY_SIZE) {\n\n av_log(s, AV_LOG_ERROR, \"Invalid decryption key len %d expected %d\\n\",\n\n mov->decryption_key_len, AES_CTR_KEY_SIZE);\n\n return AVERROR(EINVAL);\n\n }\n\n\n\n mov->fc = s;\n\n mov->trak_index = -1;\n\n /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */\n\n if (pb->seekable)\n\n atom.size = avio_size(pb);\n\n else\n\n atom.size = INT64_MAX;\n\n\n\n /* check MOV header */\n\n do {\n\n if (mov->moov_retry)\n\n avio_seek(pb, 0, SEEK_SET);\n\n if ((err = mov_read_default(mov, pb, atom)) < 0) {\n\n av_log(s, AV_LOG_ERROR, \"error reading header\\n\");\n\n mov_read_close(s);\n\n return err;\n\n }\n\n } while (pb->seekable && !mov->found_moov && !mov->moov_retry++);\n\n if (!mov->found_moov) {\n\n av_log(s, AV_LOG_ERROR, \"moov atom not found\\n\");\n\n mov_read_close(s);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n av_log(mov->fc, AV_LOG_TRACE, \"on_parse_exit_offset=%\"PRId64\"\\n\", avio_tell(pb));\n\n\n\n if (pb->seekable) {\n\n if (mov->nb_chapter_tracks > 0 && !mov->ignore_chapters)\n\n mov_read_chapters(s);\n\n for (i = 0; i < s->nb_streams; i++)\n\n if (s->streams[i]->codecpar->codec_tag == AV_RL32(\"tmcd\")) {\n\n mov_read_timecode_track(s, s->streams[i]);\n\n } else if (s->streams[i]->codecpar->codec_tag == AV_RL32(\"rtmd\")) {\n\n mov_read_rtmd_track(s, s->streams[i]);\n\n }\n\n }\n\n\n\n /* copy timecode metadata from tmcd tracks to the related video streams */\n\n for (i = 0; i < s->nb_streams; i++) {\n\n AVStream *st = s->streams[i];\n\n MOVStreamContext *sc = st->priv_data;\n\n if (sc->timecode_track > 0) {\n\n AVDictionaryEntry *tcr;\n\n int tmcd_st_id = -1;\n\n\n\n for (j = 0; j < s->nb_streams; j++)\n\n if (s->streams[j]->id == sc->timecode_track)\n\n tmcd_st_id = j;\n\n\n\n if (tmcd_st_id < 0 || tmcd_st_id == i)\n\n continue;\n\n tcr = av_dict_get(s->streams[tmcd_st_id]->metadata, \"timecode\", NULL, 0);\n\n if (tcr)\n\n av_dict_set(&st->metadata, \"timecode\", tcr->value, 0);\n\n }\n\n }\n\n export_orphan_timecode(s);\n\n\n\n for (i = 0; i < s->nb_streams; i++) {\n\n AVStream *st = s->streams[i];\n\n MOVStreamContext *sc = st->priv_data;\n\n fix_timescale(mov, sc);\n\n if(st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && st->codecpar->codec_id == AV_CODEC_ID_AAC) {\n\n st->skip_samples = sc->start_pad;\n\n }\n\n if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && sc->nb_frames_for_fps > 0 && sc->duration_for_fps > 0)\n\n av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,\n\n sc->time_scale*(int64_t)sc->nb_frames_for_fps, sc->duration_for_fps, INT_MAX);\n\n if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {\n\n if (st->codecpar->width <= 0 || st->codecpar->height <= 0) {\n\n st->codecpar->width = sc->width;\n\n st->codecpar->height = sc->height;\n\n }\n\n if (st->codecpar->codec_id == AV_CODEC_ID_DVD_SUBTITLE) {\n\n if ((err = mov_rewrite_dvd_sub_extradata(st)) < 0)\n\n return err;\n\n }\n\n }\n\n if (mov->handbrake_version &&\n\n mov->handbrake_version <= 1000000*0 + 1000*10 + 2 && // 0.10.2\n\n st->codecpar->codec_id == AV_CODEC_ID_MP3\n\n ) {\n\n av_log(s, AV_LOG_VERBOSE, \"Forcing full parsing for mp3 stream\\n\");\n\n st->need_parsing = AVSTREAM_PARSE_FULL;\n\n }\n\n }\n\n\n\n if (mov->trex_data) {\n\n for (i = 0; i < s->nb_streams; i++) {\n\n AVStream *st = s->streams[i];\n\n MOVStreamContext *sc = st->priv_data;\n\n if (st->duration > 0)\n\n st->codecpar->bit_rate = sc->data_size * 8 * sc->time_scale / st->duration;\n\n }\n\n }\n\n\n\n if (mov->use_mfra_for > 0) {\n\n for (i = 0; i < s->nb_streams; i++) {\n\n AVStream *st = s->streams[i];\n\n MOVStreamContext *sc = st->priv_data;\n\n if (sc->duration_for_fps > 0) {\n\n st->codecpar->bit_rate = sc->data_size * 8 * sc->time_scale /\n\n sc->duration_for_fps;\n\n }\n\n }\n\n }\n\n\n\n for (i = 0; i < mov->bitrates_count && i < s->nb_streams; i++) {\n\n if (mov->bitrates[i]) {\n\n s->streams[i]->codecpar->bit_rate = mov->bitrates[i];\n\n }\n\n }\n\n\n\n ff_rfps_calculate(s);\n\n\n\n for (i = 0; i < s->nb_streams; i++) {\n\n AVStream *st = s->streams[i];\n\n MOVStreamContext *sc = st->priv_data;\n\n\n\n switch (st->codecpar->codec_type) {\n\n case AVMEDIA_TYPE_AUDIO:\n\n err = ff_replaygain_export(st, s->metadata);\n\n if (err < 0) {\n\n mov_read_close(s);\n\n return err;\n\n }\n\n break;\n\n case AVMEDIA_TYPE_VIDEO:\n\n if (sc->display_matrix) {\n\n err = av_stream_add_side_data(st, AV_PKT_DATA_DISPLAYMATRIX, (uint8_t*)sc->display_matrix,\n\n sizeof(int32_t) * 9);\n\n if (err < 0)\n\n return err;\n\n\n\n sc->display_matrix = NULL;\n\n }\n\n if (sc->stereo3d) {\n\n err = av_stream_add_side_data(st, AV_PKT_DATA_STEREO3D,\n\n (uint8_t *)sc->stereo3d,\n\n sizeof(*sc->stereo3d));\n\n if (err < 0)\n\n return err;\n\n\n\n sc->stereo3d = NULL;\n\n }\n\n if (sc->spherical) {\n\n err = av_stream_add_side_data(st, AV_PKT_DATA_SPHERICAL,\n\n (uint8_t *)sc->spherical,\n\n sc->spherical_size);\n\n if (err < 0)\n\n return err;\n\n\n\n sc->spherical = NULL;\n\n }\n\n break;\n\n }\n\n }\n\n ff_configure_buffers_for_index(s, AV_TIME_BASE);\n\n\n\n return 0;\n\n}\n", + "output": "1", + "index": 7709 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int blk_init(struct XenDevice *xendev)\n\n{\n\n struct XenBlkDev *blkdev = container_of(xendev, struct XenBlkDev, xendev);\n\n int index, qflags, have_barriers, info = 0;\n\n char *h;\n\n\n\n /* read xenstore entries */\n\n if (blkdev->params == NULL) {\n\n\tblkdev->params = xenstore_read_be_str(&blkdev->xendev, \"params\");\n\n h = strchr(blkdev->params, ':');\n\n\tif (h != NULL) {\n\n\t blkdev->fileproto = blkdev->params;\n\n\t blkdev->filename = h+1;\n\n\t *h = 0;\n\n\t} else {\n\n\t blkdev->fileproto = \"\";\n\n\t blkdev->filename = blkdev->params;\n\n\t}\n\n }\n\n if (blkdev->mode == NULL)\n\n\tblkdev->mode = xenstore_read_be_str(&blkdev->xendev, \"mode\");\n\n if (blkdev->type == NULL)\n\n\tblkdev->type = xenstore_read_be_str(&blkdev->xendev, \"type\");\n\n if (blkdev->dev == NULL)\n\n\tblkdev->dev = xenstore_read_be_str(&blkdev->xendev, \"dev\");\n\n if (blkdev->devtype == NULL)\n\n\tblkdev->devtype = xenstore_read_be_str(&blkdev->xendev, \"device-type\");\n\n\n\n /* do we have all we need? */\n\n if (blkdev->params == NULL ||\n\n\tblkdev->mode == NULL ||\n\n\tblkdev->type == NULL ||\n\n\tblkdev->dev == NULL)\n\n\treturn -1;\n\n\n\n /* read-only ? */\n\n if (strcmp(blkdev->mode, \"w\") == 0) {\n\n\tqflags = BDRV_O_RDWR;\n\n } else {\n\n\tqflags = 0;\n\n\tinfo |= VDISK_READONLY;\n\n }\n\n\n\n /* cdrom ? */\n\n if (blkdev->devtype && !strcmp(blkdev->devtype, \"cdrom\"))\n\n\tinfo |= VDISK_CDROM;\n\n\n\n /* init qemu block driver */\n\n index = (blkdev->xendev.dev - 202 * 256) / 16;\n\n blkdev->dinfo = drive_get(IF_XEN, 0, index);\n\n if (!blkdev->dinfo) {\n\n /* setup via xenbus -> create new block driver instance */\n\n xen_be_printf(&blkdev->xendev, 2, \"create new bdrv (xenbus setup)\\n\");\n\n\tblkdev->bs = bdrv_new(blkdev->dev);\n\n\tif (blkdev->bs) {\n\n\t if (bdrv_open(blkdev->bs, blkdev->filename, qflags,\n\n bdrv_find_whitelisted_format(blkdev->fileproto))\n\n != 0) {\n\n\t\tbdrv_delete(blkdev->bs);\n\n\t\tblkdev->bs = NULL;\n\n\t }\n\n\t}\n\n\tif (!blkdev->bs)\n\n\t return -1;\n\n } else {\n\n /* setup via qemu cmdline -> already setup for us */\n\n xen_be_printf(&blkdev->xendev, 2, \"get configured bdrv (cmdline setup)\\n\");\n\n\tblkdev->bs = blkdev->dinfo->bdrv;\n\n }\n\n blkdev->file_blk = BLOCK_SIZE;\n\n blkdev->file_size = bdrv_getlength(blkdev->bs);\n\n if (blkdev->file_size < 0) {\n\n xen_be_printf(&blkdev->xendev, 1, \"bdrv_getlength: %d (%s) | drv %s\\n\",\n\n (int)blkdev->file_size, strerror(-blkdev->file_size),\n\n blkdev->bs->drv ? blkdev->bs->drv->format_name : \"-\");\n\n\tblkdev->file_size = 0;\n\n }\n\n have_barriers = blkdev->bs->drv && blkdev->bs->drv->bdrv_flush ? 1 : 0;\n\n\n\n xen_be_printf(xendev, 1, \"type \\\"%s\\\", fileproto \\\"%s\\\", filename \\\"%s\\\",\"\n\n\t\t \" size %\" PRId64 \" (%\" PRId64 \" MB)\\n\",\n\n\t\t blkdev->type, blkdev->fileproto, blkdev->filename,\n\n\t\t blkdev->file_size, blkdev->file_size >> 20);\n\n\n\n /* fill info */\n\n xenstore_write_be_int(&blkdev->xendev, \"feature-barrier\", have_barriers);\n\n xenstore_write_be_int(&blkdev->xendev, \"info\", info);\n\n xenstore_write_be_int(&blkdev->xendev, \"sector-size\", blkdev->file_blk);\n\n xenstore_write_be_int(&blkdev->xendev, \"sectors\",\n\n\t\t\t blkdev->file_size / blkdev->file_blk);\n\n return 0;\n\n}\n", + "output": "0", + "index": 12682 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void taihu_405ep_init(ram_addr_t ram_size,\n\n const char *boot_device,\n\n const char *kernel_filename,\n\n const char *kernel_cmdline,\n\n const char *initrd_filename,\n\n const char *cpu_model)\n\n{\n\n char *filename;\n\n qemu_irq *pic;\n\n ram_addr_t bios_offset;\n\n target_phys_addr_t ram_bases[2], ram_sizes[2];\n\n long bios_size;\n\n target_ulong kernel_base, initrd_base;\n\n long kernel_size, initrd_size;\n\n int linux_boot;\n\n int fl_idx, fl_sectors;\n\n DriveInfo *dinfo;\n\n\n\n /* RAM is soldered to the board so the size cannot be changed */\n\n ram_bases[0] = qemu_ram_alloc(NULL, \"taihu_405ep.ram-0\", 0x04000000);\n\n ram_sizes[0] = 0x04000000;\n\n ram_bases[1] = qemu_ram_alloc(NULL, \"taihu_405ep.ram-1\", 0x04000000);\n\n ram_sizes[1] = 0x04000000;\n\n ram_size = 0x08000000;\n\n#ifdef DEBUG_BOARD_INIT\n\n printf(\"%s: register cpu\\n\", __func__);\n\n#endif\n\n ppc405ep_init(ram_bases, ram_sizes, 33333333, &pic,\n\n kernel_filename == NULL ? 0 : 1);\n\n /* allocate and load BIOS */\n\n#ifdef DEBUG_BOARD_INIT\n\n printf(\"%s: register BIOS\\n\", __func__);\n\n#endif\n\n fl_idx = 0;\n\n#if defined(USE_FLASH_BIOS)\n\n dinfo = drive_get(IF_PFLASH, 0, fl_idx);\n\n if (dinfo) {\n\n bios_size = bdrv_getlength(dinfo->bdrv);\n\n /* XXX: should check that size is 2MB */\n\n // bios_size = 2 * 1024 * 1024;\n\n fl_sectors = (bios_size + 65535) >> 16;\n\n bios_offset = qemu_ram_alloc(NULL, \"taihu_405ep.bios\", bios_size);\n\n#ifdef DEBUG_BOARD_INIT\n\n printf(\"Register parallel flash %d size %lx\"\n\n \" at offset %08lx addr %lx '%s' %d\\n\",\n\n fl_idx, bios_size, bios_offset, -bios_size,\n\n bdrv_get_device_name(dinfo->bdrv), fl_sectors);\n\n#endif\n\n pflash_cfi02_register((uint32_t)(-bios_size), bios_offset,\n\n dinfo->bdrv, 65536, fl_sectors, 1,\n\n 4, 0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA,\n\n 1);\n\n fl_idx++;\n\n } else\n\n#endif\n\n {\n\n#ifdef DEBUG_BOARD_INIT\n\n printf(\"Load BIOS from file\\n\");\n\n#endif\n\n if (bios_name == NULL)\n\n bios_name = BIOS_FILENAME;\n\n bios_offset = qemu_ram_alloc(NULL, \"taihu_405ep.bios\", BIOS_SIZE);\n\n filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);\n\n if (filename) {\n\n bios_size = load_image(filename, qemu_get_ram_ptr(bios_offset));\n\n\n } else {\n\n bios_size = -1;\n\n }\n\n if (bios_size < 0 || bios_size > BIOS_SIZE) {\n\n fprintf(stderr, \"qemu: could not load PowerPC bios '%s'\\n\",\n\n bios_name);\n\n exit(1);\n\n }\n\n bios_size = (bios_size + 0xfff) & ~0xfff;\n\n cpu_register_physical_memory((uint32_t)(-bios_size),\n\n bios_size, bios_offset | IO_MEM_ROM);\n\n }\n\n /* Register Linux flash */\n\n dinfo = drive_get(IF_PFLASH, 0, fl_idx);\n\n if (dinfo) {\n\n bios_size = bdrv_getlength(dinfo->bdrv);\n\n /* XXX: should check that size is 32MB */\n\n bios_size = 32 * 1024 * 1024;\n\n fl_sectors = (bios_size + 65535) >> 16;\n\n#ifdef DEBUG_BOARD_INIT\n\n printf(\"Register parallel flash %d size %lx\"\n\n \" at offset %08lx addr \" TARGET_FMT_lx \" '%s'\\n\",\n\n fl_idx, bios_size, bios_offset, (target_ulong)0xfc000000,\n\n bdrv_get_device_name(dinfo->bdrv));\n\n#endif\n\n bios_offset = qemu_ram_alloc(NULL, \"taihu_405ep.flash\", bios_size);\n\n pflash_cfi02_register(0xfc000000, bios_offset,\n\n dinfo->bdrv, 65536, fl_sectors, 1,\n\n 4, 0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA,\n\n 1);\n\n fl_idx++;\n\n }\n\n /* Register CLPD & LCD display */\n\n#ifdef DEBUG_BOARD_INIT\n\n printf(\"%s: register CPLD\\n\", __func__);\n\n#endif\n\n taihu_cpld_init(0x50100000);\n\n /* Load kernel */\n\n linux_boot = (kernel_filename != NULL);\n\n if (linux_boot) {\n\n#ifdef DEBUG_BOARD_INIT\n\n printf(\"%s: load kernel\\n\", __func__);\n\n#endif\n\n kernel_base = KERNEL_LOAD_ADDR;\n\n /* now we can load the kernel */\n\n kernel_size = load_image_targphys(kernel_filename, kernel_base,\n\n ram_size - kernel_base);\n\n if (kernel_size < 0) {\n\n fprintf(stderr, \"qemu: could not load kernel '%s'\\n\",\n\n kernel_filename);\n\n exit(1);\n\n }\n\n /* load initrd */\n\n if (initrd_filename) {\n\n initrd_base = INITRD_LOAD_ADDR;\n\n initrd_size = load_image_targphys(initrd_filename, initrd_base,\n\n ram_size - initrd_base);\n\n if (initrd_size < 0) {\n\n fprintf(stderr,\n\n \"qemu: could not load initial ram disk '%s'\\n\",\n\n initrd_filename);\n\n exit(1);\n\n }\n\n } else {\n\n initrd_base = 0;\n\n initrd_size = 0;\n\n }\n\n } else {\n\n kernel_base = 0;\n\n kernel_size = 0;\n\n initrd_base = 0;\n\n initrd_size = 0;\n\n }\n\n#ifdef DEBUG_BOARD_INIT\n\n printf(\"%s: Done\\n\", __func__);\n\n#endif\n\n}", + "output": "1", + "index": 16621 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int attribute_align_arg avcodec_open2(AVCodecContext *avctx, AVCodec *codec, AVDictionary **options)\n{\n int ret = 0;\n AVDictionary *tmp = NULL;\n if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)\n return AVERROR(EINVAL);\n if (options)\n av_dict_copy(&tmp, *options, 0);\n /* If there is a user-supplied mutex locking routine, call it. */\n if (ff_lockmgr_cb) {\n if ((*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))\n return -1;\n entangled_thread_counter++;\n if(entangled_thread_counter != 1){\n av_log(avctx, AV_LOG_ERROR, \"insufficient thread locking around avcodec_open/close()\\n\");\n goto end;\n if(avctx->codec || !codec) {\n ret = AVERROR(EINVAL);\n goto end;\n avctx->internal = av_mallocz(sizeof(AVCodecInternal));\n if (!avctx->internal) {\n ret = AVERROR(ENOMEM);\n goto end;\n if (codec->priv_data_size > 0) {\n if(!avctx->priv_data){\n avctx->priv_data = av_mallocz(codec->priv_data_size);\n if (!avctx->priv_data) {\n ret = AVERROR(ENOMEM);\n goto end;\n if (codec->priv_class) {\n *(AVClass**)avctx->priv_data= codec->priv_class;\n av_opt_set_defaults(avctx->priv_data);\n if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)\n } else {\n avctx->priv_data = NULL;\n if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)\n //We only call avcodec_set_dimensions() for non h264 codecs so as not to overwrite previously setup dimensions\n if(!( avctx->coded_width && avctx->coded_height && avctx->width && avctx->height && avctx->codec_id == CODEC_ID_H264)){\n if(avctx->coded_width && avctx->coded_height)\n avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);\n else if(avctx->width && avctx->height)\n avcodec_set_dimensions(avctx, avctx->width, avctx->height);\n if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)\n && ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0\n || av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) {\n av_log(avctx, AV_LOG_WARNING, \"ignoring invalid width/height values\\n\");\n avcodec_set_dimensions(avctx, 0, 0);\n /* if the decoder init function was already called previously,\n free the already allocated subtitle_header before overwriting it */\n if (codec->decode)\n av_freep(&avctx->subtitle_header);\n#define SANE_NB_CHANNELS 128U\n if (avctx->channels > SANE_NB_CHANNELS) {\n ret = AVERROR(EINVAL);\n avctx->codec = codec;\n if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&\n avctx->codec_id == CODEC_ID_NONE) {\n avctx->codec_type = codec->type;\n avctx->codec_id = codec->id;\n if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type\n && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {\n av_log(avctx, AV_LOG_ERROR, \"codec type or id mismatches\\n\");\n ret = AVERROR(EINVAL);\n avctx->frame_number = 0;\n#if FF_API_ER\n av_log(avctx, AV_LOG_DEBUG, \"err{or,}_recognition separate: %d; %X\\n\",\n avctx->error_recognition, avctx->err_recognition);\n switch(avctx->error_recognition){\n case FF_ER_EXPLODE : avctx->err_recognition |= AV_EF_EXPLODE | AV_EF_COMPLIANT | AV_EF_CAREFUL;\n break;\n case FF_ER_VERY_AGGRESSIVE:\n case FF_ER_AGGRESSIVE : avctx->err_recognition |= AV_EF_AGGRESSIVE;\n case FF_ER_COMPLIANT : avctx->err_recognition |= AV_EF_COMPLIANT;\n case FF_ER_CAREFUL : avctx->err_recognition |= AV_EF_CAREFUL;\n av_log(avctx, AV_LOG_DEBUG, \"err{or,}_recognition combined: %d; %X\\n\",\n avctx->error_recognition, avctx->err_recognition);\n#endif\n if (!HAVE_THREADS)\n av_log(avctx, AV_LOG_WARNING, \"Warning: not compiled with thread support, using thread emulation\\n\");\n if (HAVE_THREADS && !avctx->thread_opaque) {\n ret = ff_thread_init(avctx);\n if (ret < 0) {\n if (!HAVE_THREADS && !(codec->capabilities & CODEC_CAP_AUTO_THREADS))\n avctx->thread_count = 1;\n if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {\n av_log(avctx, AV_LOG_ERROR, \"The maximum value for lowres supported by the decoder is %d\\n\",\n avctx->codec->max_lowres);\n ret = AVERROR(EINVAL);\n if (avctx->codec->encode) {\n int i;\n if (avctx->codec->sample_fmts) {\n for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++)\n if (avctx->sample_fmt == avctx->codec->sample_fmts[i])\n break;\n if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {\n av_log(avctx, AV_LOG_ERROR, \"Specified sample_fmt is not supported.\\n\");\n ret = AVERROR(EINVAL);\n if (avctx->codec->supported_samplerates) {\n for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)\n if (avctx->sample_rate == avctx->codec->supported_samplerates[i])\n break;\n if (avctx->codec->supported_samplerates[i] == 0) {\n av_log(avctx, AV_LOG_ERROR, \"Specified sample_rate is not supported\\n\");\n ret = AVERROR(EINVAL);\n if (avctx->codec->channel_layouts) {\n if (!avctx->channel_layout) {\n av_log(avctx, AV_LOG_WARNING, \"channel_layout not specified\\n\");\n } else {\n for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)\n if (avctx->channel_layout == avctx->codec->channel_layouts[i])\n break;\n if (avctx->codec->channel_layouts[i] == 0) {\n av_log(avctx, AV_LOG_ERROR, \"Specified channel_layout is not supported\\n\");\n ret = AVERROR(EINVAL);\n if (avctx->channel_layout && avctx->channels) {\n if (av_get_channel_layout_nb_channels(avctx->channel_layout) != avctx->channels) {\n av_log(avctx, AV_LOG_ERROR, \"channel layout does not match number of channels\\n\");\n ret = AVERROR(EINVAL);\n } else if (avctx->channel_layout) {\n avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);\n avctx->pts_correction_num_faulty_pts =\n avctx->pts_correction_num_faulty_dts = 0;\n avctx->pts_correction_last_pts =\n avctx->pts_correction_last_dts = INT64_MIN;\n if(avctx->codec->init && !(avctx->active_thread_type&FF_THREAD_FRAME)){\n ret = avctx->codec->init(avctx);\n if (ret < 0) {\n ret=0;\nend:\n entangled_thread_counter--;\n /* Release any user-supplied mutex. */\n if (ff_lockmgr_cb) {\n (*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE);\n if (options) {\n av_dict_free(options);\n *options = tmp;\n return ret;\nfree_and_end:\n av_dict_free(&tmp);\n av_freep(&avctx->priv_data);\n av_freep(&avctx->internal);\n avctx->codec= NULL;\n goto end;", + "output": "1", + "index": 12228 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void RENAME(yuv2rgb32_1)(SwsContext *c, const int16_t *buf0,\n\n const int16_t *ubuf[2], const int16_t *bguf[2],\n\n const int16_t *abuf0, uint8_t *dest,\n\n int dstW, int uvalpha, int y)\n\n{\n\n const int16_t *ubuf0 = ubuf[0], *ubuf1 = ubuf[1];\n\n const int16_t *buf1= buf0; //FIXME needed for RGB1/BGR1\n\n\n\n if (uvalpha < 2048) { // note this is not correct (shifts chrominance by 0.5 pixels) but it is a bit faster\n\n if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) {\n\n __asm__ volatile(\n\n \"mov %%\"REG_b\", \"ESP_OFFSET\"(%5) \\n\\t\"\n\n \"mov %4, %%\"REG_b\" \\n\\t\"\n\n \"push %%\"REG_BP\" \\n\\t\"\n\n YSCALEYUV2RGB1(%%REGBP, %5)\n\n YSCALEYUV2RGB1_ALPHA(%%REGBP)\n\n WRITEBGR32(%%REGb, 8280(%5), %%REGBP, %%mm2, %%mm4, %%mm5, %%mm7, %%mm0, %%mm1, %%mm3, %%mm6)\n\n \"pop %%\"REG_BP\" \\n\\t\"\n\n \"mov \"ESP_OFFSET\"(%5), %%\"REG_b\" \\n\\t\"\n\n :: \"c\" (buf0), \"d\" (abuf0), \"S\" (ubuf0), \"D\" (ubuf1), \"m\" (dest),\n\n \"a\" (&c->redDither)\n\n );\n\n } else {\n\n __asm__ volatile(\n\n \"mov %%\"REG_b\", \"ESP_OFFSET\"(%5) \\n\\t\"\n\n \"mov %4, %%\"REG_b\" \\n\\t\"\n\n \"push %%\"REG_BP\" \\n\\t\"\n\n YSCALEYUV2RGB1(%%REGBP, %5)\n\n \"pcmpeqd %%mm7, %%mm7 \\n\\t\"\n\n WRITEBGR32(%%REGb, 8280(%5), %%REGBP, %%mm2, %%mm4, %%mm5, %%mm7, %%mm0, %%mm1, %%mm3, %%mm6)\n\n \"pop %%\"REG_BP\" \\n\\t\"\n\n \"mov \"ESP_OFFSET\"(%5), %%\"REG_b\" \\n\\t\"\n\n :: \"c\" (buf0), \"d\" (buf1), \"S\" (ubuf0), \"D\" (ubuf1), \"m\" (dest),\n\n \"a\" (&c->redDither)\n\n );\n\n }\n\n } else {\n\n if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) {\n\n __asm__ volatile(\n\n \"mov %%\"REG_b\", \"ESP_OFFSET\"(%5) \\n\\t\"\n\n \"mov %4, %%\"REG_b\" \\n\\t\"\n\n \"push %%\"REG_BP\" \\n\\t\"\n\n YSCALEYUV2RGB1b(%%REGBP, %5)\n\n YSCALEYUV2RGB1_ALPHA(%%REGBP)\n\n WRITEBGR32(%%REGb, 8280(%5), %%REGBP, %%mm2, %%mm4, %%mm5, %%mm7, %%mm0, %%mm1, %%mm3, %%mm6)\n\n \"pop %%\"REG_BP\" \\n\\t\"\n\n \"mov \"ESP_OFFSET\"(%5), %%\"REG_b\" \\n\\t\"\n\n :: \"c\" (buf0), \"d\" (abuf0), \"S\" (ubuf0), \"D\" (ubuf1), \"m\" (dest),\n\n \"a\" (&c->redDither)\n\n );\n\n } else {\n\n __asm__ volatile(\n\n \"mov %%\"REG_b\", \"ESP_OFFSET\"(%5) \\n\\t\"\n\n \"mov %4, %%\"REG_b\" \\n\\t\"\n\n \"push %%\"REG_BP\" \\n\\t\"\n\n YSCALEYUV2RGB1b(%%REGBP, %5)\n\n \"pcmpeqd %%mm7, %%mm7 \\n\\t\"\n\n WRITEBGR32(%%REGb, 8280(%5), %%REGBP, %%mm2, %%mm4, %%mm5, %%mm7, %%mm0, %%mm1, %%mm3, %%mm6)\n\n \"pop %%\"REG_BP\" \\n\\t\"\n\n \"mov \"ESP_OFFSET\"(%5), %%\"REG_b\" \\n\\t\"\n\n :: \"c\" (buf0), \"d\" (buf1), \"S\" (ubuf0), \"D\" (ubuf1), \"m\" (dest),\n\n \"a\" (&c->redDither)\n\n );\n\n }\n\n }\n\n}\n", + "output": "1", + "index": 16340 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs,\n\n BlockDriverState *target, int64_t speed,\n\n MirrorSyncMode sync_mode, BdrvDirtyBitmap *sync_bitmap,\n\n bool compress,\n\n BlockdevOnError on_source_error,\n\n BlockdevOnError on_target_error,\n\n int creation_flags,\n\n BlockCompletionFunc *cb, void *opaque,\n\n BlockJobTxn *txn, Error **errp)\n\n{\n\n int64_t len;\n\n BlockDriverInfo bdi;\n\n BackupBlockJob *job = NULL;\n\n int ret;\n\n\n\n assert(bs);\n\n assert(target);\n\n\n\n if (bs == target) {\n\n error_setg(errp, \"Source and target cannot be the same\");\n\n return NULL;\n\n }\n\n\n\n if (!bdrv_is_inserted(bs)) {\n\n error_setg(errp, \"Device is not inserted: %s\",\n\n bdrv_get_device_name(bs));\n\n return NULL;\n\n }\n\n\n\n if (!bdrv_is_inserted(target)) {\n\n error_setg(errp, \"Device is not inserted: %s\",\n\n bdrv_get_device_name(target));\n\n return NULL;\n\n }\n\n\n\n if (compress && target->drv->bdrv_co_pwritev_compressed == NULL) {\n\n error_setg(errp, \"Compression is not supported for this drive %s\",\n\n bdrv_get_device_name(target));\n\n return NULL;\n\n }\n\n\n\n if (bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_BACKUP_SOURCE, errp)) {\n\n return NULL;\n\n }\n\n\n\n if (bdrv_op_is_blocked(target, BLOCK_OP_TYPE_BACKUP_TARGET, errp)) {\n\n return NULL;\n\n }\n\n\n\n if (sync_mode == MIRROR_SYNC_MODE_INCREMENTAL) {\n\n if (!sync_bitmap) {\n\n error_setg(errp, \"must provide a valid bitmap name for \"\n\n \"\\\"incremental\\\" sync mode\");\n\n return NULL;\n\n }\n\n\n\n /* Create a new bitmap, and freeze/disable this one. */\n\n if (bdrv_dirty_bitmap_create_successor(bs, sync_bitmap, errp) < 0) {\n\n return NULL;\n\n }\n\n } else if (sync_bitmap) {\n\n error_setg(errp,\n\n \"a sync_bitmap was provided to backup_run, \"\n\n \"but received an incompatible sync_mode (%s)\",\n\n MirrorSyncMode_lookup[sync_mode]);\n\n return NULL;\n\n }\n\n\n\n len = bdrv_getlength(bs);\n\n if (len < 0) {\n\n error_setg_errno(errp, -len, \"unable to get length for '%s'\",\n\n bdrv_get_device_name(bs));\n\n goto error;\n\n }\n\n\n\n /* job->common.len is fixed, so we can't allow resize */\n\n job = block_job_create(job_id, &backup_job_driver, bs,\n\n BLK_PERM_CONSISTENT_READ,\n\n BLK_PERM_CONSISTENT_READ | BLK_PERM_WRITE |\n\n BLK_PERM_WRITE_UNCHANGED | BLK_PERM_GRAPH_MOD,\n\n speed, creation_flags, cb, opaque, errp);\n\n if (!job) {\n\n goto error;\n\n }\n\n\n\n /* The target must match the source in size, so no resize here either */\n\n job->target = blk_new(BLK_PERM_WRITE,\n\n BLK_PERM_CONSISTENT_READ | BLK_PERM_WRITE |\n\n BLK_PERM_WRITE_UNCHANGED | BLK_PERM_GRAPH_MOD);\n\n ret = blk_insert_bs(job->target, target, errp);\n\n if (ret < 0) {\n\n goto error;\n\n }\n\n\n\n job->on_source_error = on_source_error;\n\n job->on_target_error = on_target_error;\n\n job->sync_mode = sync_mode;\n\n job->sync_bitmap = sync_mode == MIRROR_SYNC_MODE_INCREMENTAL ?\n\n sync_bitmap : NULL;\n\n job->compress = compress;\n\n\n\n /* If there is no backing file on the target, we cannot rely on COW if our\n\n * backup cluster size is smaller than the target cluster size. Even for\n\n * targets with a backing file, try to avoid COW if possible. */\n\n ret = bdrv_get_info(target, &bdi);\n\n if (ret == -ENOTSUP && !target->backing) {\n\n /* Cluster size is not defined */\n\n error_report(\"WARNING: The target block device doesn't provide \"\n\n \"information about the block size and it doesn't have a \"\n\n \"backing file. The default block size of %u bytes is \"\n\n \"used. If the actual block size of the target exceeds \"\n\n \"this default, the backup may be unusable\",\n\n BACKUP_CLUSTER_SIZE_DEFAULT);\n\n job->cluster_size = BACKUP_CLUSTER_SIZE_DEFAULT;\n\n } else if (ret < 0 && !target->backing) {\n\n error_setg_errno(errp, -ret,\n\n \"Couldn't determine the cluster size of the target image, \"\n\n \"which has no backing file\");\n\n error_append_hint(errp,\n\n \"Aborting, since this may create an unusable destination image\\n\");\n\n goto error;\n\n } else if (ret < 0 && target->backing) {\n\n /* Not fatal; just trudge on ahead. */\n\n job->cluster_size = BACKUP_CLUSTER_SIZE_DEFAULT;\n\n } else {\n\n job->cluster_size = MAX(BACKUP_CLUSTER_SIZE_DEFAULT, bdi.cluster_size);\n\n }\n\n\n\n /* Required permissions are already taken with target's blk_new() */\n\n block_job_add_bdrv(&job->common, \"target\", target, 0, BLK_PERM_ALL,\n\n &error_abort);\n\n job->common.len = len;\n\n block_job_txn_add_job(txn, &job->common);\n\n\n\n return &job->common;\n\n\n\n error:\n\n if (sync_bitmap) {\n\n bdrv_reclaim_dirty_bitmap(bs, sync_bitmap, NULL);\n\n }\n\n if (job) {\n\n backup_clean(&job->common);\n\n block_job_early_fail(&job->common);\n\n }\n\n\n\n return NULL;\n\n}\n", + "output": "0", + "index": 6262 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int ff_jpegls_decode_picture(MJpegDecodeContext *s, int near,\n\n int point_transform, int ilv)\n\n{\n\n int i, t = 0;\n\n uint8_t *zero, *last, *cur;\n\n JLSState *state;\n\n int off = 0, stride = 1, width, shift, ret = 0;\n\n\n\n zero = av_mallocz(s->picture_ptr->linesize[0]);\n\n if (!zero)\n\n return AVERROR(ENOMEM);\n\n last = zero;\n\n cur = s->picture_ptr->data[0];\n\n\n\n state = av_mallocz(sizeof(JLSState));\n\n if (!state) {\n\n av_free(zero);\n\n return AVERROR(ENOMEM);\n\n }\n\n /* initialize JPEG-LS state from JPEG parameters */\n\n state->near = near;\n\n state->bpp = (s->bits < 2) ? 2 : s->bits;\n\n state->maxval = s->maxval;\n\n state->T1 = s->t1;\n\n state->T2 = s->t2;\n\n state->T3 = s->t3;\n\n state->reset = s->reset;\n\n ff_jpegls_reset_coding_parameters(state, 0);\n\n ff_jpegls_init_state(state);\n\n\n\n if (s->bits <= 8)\n\n shift = point_transform + (8 - s->bits);\n\n else\n\n shift = point_transform + (16 - s->bits);\n\n\n\n if (shift >= 16) {\n\n ret = AVERROR_INVALIDDATA;\n\n\n }\n\n\n\n if (s->avctx->debug & FF_DEBUG_PICT_INFO) {\n\n av_log(s->avctx, AV_LOG_DEBUG,\n\n \"JPEG-LS params: %ix%i NEAR=%i MV=%i T(%i,%i,%i) \"\n\n \"RESET=%i, LIMIT=%i, qbpp=%i, RANGE=%i\\n\",\n\n s->width, s->height, state->near, state->maxval,\n\n state->T1, state->T2, state->T3,\n\n state->reset, state->limit, state->qbpp, state->range);\n\n av_log(s->avctx, AV_LOG_DEBUG, \"JPEG params: ILV=%i Pt=%i BPP=%i, scan = %i\\n\",\n\n ilv, point_transform, s->bits, s->cur_scan);\n\n }\n\n if (get_bits_left(&s->gb) < s->height) {\n\n ret = AVERROR_INVALIDDATA;\n\n\n }\n\n if (ilv == 0) { /* separate planes */\n\n if (s->cur_scan > s->nb_components) {\n\n ret = AVERROR_INVALIDDATA;\n\n\n }\n\n stride = (s->nb_components > 1) ? 3 : 1;\n\n off = av_clip(s->cur_scan - 1, 0, stride - 1);\n\n width = s->width * stride;\n\n cur += off;\n\n for (i = 0; i < s->height; i++) {\n\n if (s->bits <= 8) {\n\n ls_decode_line(state, s, last, cur, t, width, stride, off, 8);\n\n t = last[0];\n\n } else {\n\n ls_decode_line(state, s, last, cur, t, width, stride, off, 16);\n\n t = *((uint16_t *)last);\n\n }\n\n last = cur;\n\n cur += s->picture_ptr->linesize[0];\n\n\n\n if (s->restart_interval && !--s->restart_count) {\n\n align_get_bits(&s->gb);\n\n skip_bits(&s->gb, 16); /* skip RSTn */\n\n }\n\n }\n\n } else if (ilv == 1) { /* line interleaving */\n\n int j;\n\n int Rc[3] = { 0, 0, 0 };\n\n stride = (s->nb_components > 1) ? 3 : 1;\n\n memset(cur, 0, s->picture_ptr->linesize[0]);\n\n width = s->width * stride;\n\n for (i = 0; i < s->height; i++) {\n\n for (j = 0; j < stride; j++) {\n\n ls_decode_line(state, s, last + j, cur + j,\n\n Rc[j], width, stride, j, 8);\n\n Rc[j] = last[j];\n\n\n\n if (s->restart_interval && !--s->restart_count) {\n\n align_get_bits(&s->gb);\n\n skip_bits(&s->gb, 16); /* skip RSTn */\n\n }\n\n }\n\n last = cur;\n\n cur += s->picture_ptr->linesize[0];\n\n }\n\n } else if (ilv == 2) { /* sample interleaving */\n\n avpriv_report_missing_feature(s->avctx, \"Sample interleaved images\");\n\n\n\n\n\n\n\n }\n\n\n\n if (s->xfrm && s->nb_components == 3) {\n\n int x, w;\n\n\n\n w = s->width * s->nb_components;\n\n\n\n if (s->bits <= 8) {\n\n uint8_t *src = s->picture_ptr->data[0];\n\n\n\n for (i = 0; i < s->height; i++) {\n\n switch(s->xfrm) {\n\n case 1:\n\n for (x = off; x < w; x += 3) {\n\n src[x ] += src[x+1] + 128;\n\n src[x+2] += src[x+1] + 128;\n\n }\n\n break;\n\n case 2:\n\n for (x = off; x < w; x += 3) {\n\n src[x ] += src[x+1] + 128;\n\n src[x+2] += ((src[x ] + src[x+1])>>1) + 128;\n\n }\n\n break;\n\n case 3:\n\n for (x = off; x < w; x += 3) {\n\n int g = src[x+0] - ((src[x+2]+src[x+1])>>2) + 64;\n\n src[x+0] = src[x+2] + g + 128;\n\n src[x+2] = src[x+1] + g + 128;\n\n src[x+1] = g;\n\n }\n\n break;\n\n case 4:\n\n for (x = off; x < w; x += 3) {\n\n int r = src[x+0] - (( 359 * (src[x+2]-128) + 490) >> 8);\n\n int g = src[x+0] - (( 88 * (src[x+1]-128) - 183 * (src[x+2]-128) + 30) >> 8);\n\n int b = src[x+0] + ((454 * (src[x+1]-128) + 574) >> 8);\n\n src[x+0] = av_clip_uint8(r);\n\n src[x+1] = av_clip_uint8(g);\n\n src[x+2] = av_clip_uint8(b);\n\n }\n\n break;\n\n }\n\n src += s->picture_ptr->linesize[0];\n\n }\n\n }else\n\n avpriv_report_missing_feature(s->avctx, \"16bit xfrm\");\n\n }\n\n\n\n if (shift) { /* we need to do point transform or normalize samples */\n\n int x, w;\n\n\n\n w = s->width * s->nb_components;\n\n\n\n if (s->bits <= 8) {\n\n uint8_t *src = s->picture_ptr->data[0];\n\n\n\n for (i = 0; i < s->height; i++) {\n\n for (x = off; x < w; x += stride)\n\n src[x] <<= shift;\n\n src += s->picture_ptr->linesize[0];\n\n }\n\n } else {\n\n uint16_t *src = (uint16_t *)s->picture_ptr->data[0];\n\n\n\n for (i = 0; i < s->height; i++) {\n\n for (x = 0; x < w; x++)\n\n src[x] <<= shift;\n\n src += s->picture_ptr->linesize[0] / 2;\n\n }\n\n }\n\n }\n\n\n\nend:\n\n av_free(state);\n\n av_free(zero);\n\n\n\n return ret;\n\n}", + "output": "1", + "index": 9502 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int qcow2_check_refcounts(BlockDriverState *bs, BdrvCheckResult *res,\n\n BdrvCheckMode fix)\n\n{\n\n BDRVQcowState *s = bs->opaque;\n\n int64_t size, i, highest_cluster;\n\n int nb_clusters, refcount1, refcount2;\n\n QCowSnapshot *sn;\n\n uint16_t *refcount_table;\n\n int ret;\n\n\n\n size = bdrv_getlength(bs->file);\n\n nb_clusters = size_to_clusters(s, size);\n\n refcount_table = g_malloc0(nb_clusters * sizeof(uint16_t));\n\n\n\n /* header */\n\n inc_refcounts(bs, res, refcount_table, nb_clusters,\n\n 0, s->cluster_size);\n\n\n\n /* current L1 table */\n\n ret = check_refcounts_l1(bs, res, refcount_table, nb_clusters,\n\n s->l1_table_offset, s->l1_size, 1);\n\n if (ret < 0) {\n\n goto fail;\n\n }\n\n\n\n /* snapshots */\n\n for(i = 0; i < s->nb_snapshots; i++) {\n\n sn = s->snapshots + i;\n\n ret = check_refcounts_l1(bs, res, refcount_table, nb_clusters,\n\n sn->l1_table_offset, sn->l1_size, 0);\n\n if (ret < 0) {\n\n goto fail;\n\n }\n\n }\n\n inc_refcounts(bs, res, refcount_table, nb_clusters,\n\n s->snapshots_offset, s->snapshots_size);\n\n\n\n /* refcount data */\n\n inc_refcounts(bs, res, refcount_table, nb_clusters,\n\n s->refcount_table_offset,\n\n s->refcount_table_size * sizeof(uint64_t));\n\n\n\n for(i = 0; i < s->refcount_table_size; i++) {\n\n uint64_t offset, cluster;\n\n offset = s->refcount_table[i];\n\n cluster = offset >> s->cluster_bits;\n\n\n\n /* Refcount blocks are cluster aligned */\n\n if (offset & (s->cluster_size - 1)) {\n\n fprintf(stderr, \"ERROR refcount block %\" PRId64 \" is not \"\n\n \"cluster aligned; refcount table entry corrupted\\n\", i);\n\n res->corruptions++;\n\n continue;\n\n }\n\n\n\n if (cluster >= nb_clusters) {\n\n fprintf(stderr, \"ERROR refcount block %\" PRId64\n\n \" is outside image\\n\", i);\n\n res->corruptions++;\n\n continue;\n\n }\n\n\n\n if (offset != 0) {\n\n inc_refcounts(bs, res, refcount_table, nb_clusters,\n\n offset, s->cluster_size);\n\n if (refcount_table[cluster] != 1) {\n\n fprintf(stderr, \"ERROR refcount block %\" PRId64\n\n \" refcount=%d\\n\",\n\n i, refcount_table[cluster]);\n\n res->corruptions++;\n\n }\n\n }\n\n }\n\n\n\n /* compare ref counts */\n\n for (i = 0, highest_cluster = 0; i < nb_clusters; i++) {\n\n refcount1 = get_refcount(bs, i);\n\n if (refcount1 < 0) {\n\n fprintf(stderr, \"Can't get refcount for cluster %\" PRId64 \": %s\\n\",\n\n i, strerror(-refcount1));\n\n res->check_errors++;\n\n continue;\n\n }\n\n\n\n refcount2 = refcount_table[i];\n\n\n\n if (refcount1 > 0 || refcount2 > 0) {\n\n highest_cluster = i;\n\n }\n\n\n\n if (refcount1 != refcount2) {\n\n\n\n /* Check if we're allowed to fix the mismatch */\n\n int *num_fixed = NULL;\n\n if (refcount1 > refcount2 && (fix & BDRV_FIX_LEAKS)) {\n\n num_fixed = &res->leaks_fixed;\n\n } else if (refcount1 < refcount2 && (fix & BDRV_FIX_ERRORS)) {\n\n num_fixed = &res->corruptions_fixed;\n\n }\n\n\n\n fprintf(stderr, \"%s cluster %\" PRId64 \" refcount=%d reference=%d\\n\",\n\n num_fixed != NULL ? \"Repairing\" :\n\n refcount1 < refcount2 ? \"ERROR\" :\n\n \"Leaked\",\n\n i, refcount1, refcount2);\n\n\n\n if (num_fixed) {\n\n ret = update_refcount(bs, i << s->cluster_bits, 1,\n\n refcount2 - refcount1);\n\n if (ret >= 0) {\n\n (*num_fixed)++;\n\n continue;\n\n }\n\n }\n\n\n\n /* And if we couldn't, print an error */\n\n if (refcount1 < refcount2) {\n\n res->corruptions++;\n\n } else {\n\n res->leaks++;\n\n }\n\n }\n\n }\n\n\n\n res->image_end_offset = (highest_cluster + 1) * s->cluster_size;\n\n ret = 0;\n\n\n\nfail:\n\n g_free(refcount_table);\n\n\n\n return ret;\n\n}\n", + "output": "0", + "index": 12123 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void versatile_init(ram_addr_t ram_size,\n\n const char *boot_device,\n\n const char *kernel_filename, const char *kernel_cmdline,\n\n const char *initrd_filename, const char *cpu_model,\n\n int board_id)\n\n{\n\n CPUState *env;\n\n ram_addr_t ram_offset;\n\n qemu_irq *cpu_pic;\n\n qemu_irq pic[32];\n\n qemu_irq sic[32];\n\n DeviceState *dev;\n\n PCIBus *pci_bus;\n\n NICInfo *nd;\n\n int n;\n\n int done_smc = 0;\n\n\n\n if (!cpu_model)\n\n cpu_model = \"arm926\";\n\n env = cpu_init(cpu_model);\n\n if (!env) {\n\n fprintf(stderr, \"Unable to find CPU definition\\n\");\n\n exit(1);\n\n }\n\n ram_offset = qemu_ram_alloc(NULL, \"versatile.ram\", ram_size);\n\n /* ??? RAM should repeat to fill physical memory space. */\n\n /* SDRAM at address zero. */\n\n cpu_register_physical_memory(0, ram_size, ram_offset | IO_MEM_RAM);\n\n\n\n arm_sysctl_init(0x10000000, 0x41007004, 0x02000000);\n\n cpu_pic = arm_pic_init_cpu(env);\n\n dev = sysbus_create_varargs(\"pl190\", 0x10140000,\n\n cpu_pic[0], cpu_pic[1], NULL);\n\n for (n = 0; n < 32; n++) {\n\n pic[n] = qdev_get_gpio_in(dev, n);\n\n }\n\n dev = sysbus_create_simple(\"versatilepb_sic\", 0x10003000, NULL);\n\n for (n = 0; n < 32; n++) {\n\n sysbus_connect_irq(sysbus_from_qdev(dev), n, pic[n]);\n\n sic[n] = qdev_get_gpio_in(dev, n);\n\n }\n\n\n\n sysbus_create_simple(\"pl050_keyboard\", 0x10006000, sic[3]);\n\n sysbus_create_simple(\"pl050_mouse\", 0x10007000, sic[4]);\n\n\n\n dev = sysbus_create_varargs(\"versatile_pci\", 0x40000000,\n\n sic[27], sic[28], sic[29], sic[30], NULL);\n\n pci_bus = (PCIBus *)qdev_get_child_bus(dev, \"pci\");\n\n\n\n /* The Versatile PCI bridge does not provide access to PCI IO space,\n\n so many of the qemu PCI devices are not useable. */\n\n for(n = 0; n < nb_nics; n++) {\n\n nd = &nd_table[n];\n\n\n\n if ((!nd->model && !done_smc) || strcmp(nd->model, \"smc91c111\") == 0) {\n\n smc91c111_init(nd, 0x10010000, sic[25]);\n\n done_smc = 1;\n\n } else {\n\n pci_nic_init_nofail(nd, \"rtl8139\", NULL);\n\n }\n\n }\n\n if (usb_enabled) {\n\n usb_ohci_init_pci(pci_bus, -1);\n\n }\n\n n = drive_get_max_bus(IF_SCSI);\n\n while (n >= 0) {\n\n pci_create_simple(pci_bus, -1, \"lsi53c895a\");\n\n n--;\n\n }\n\n\n\n sysbus_create_simple(\"pl011\", 0x101f1000, pic[12]);\n\n sysbus_create_simple(\"pl011\", 0x101f2000, pic[13]);\n\n sysbus_create_simple(\"pl011\", 0x101f3000, pic[14]);\n\n sysbus_create_simple(\"pl011\", 0x10009000, sic[6]);\n\n\n\n sysbus_create_simple(\"pl080\", 0x10130000, pic[17]);\n\n sysbus_create_simple(\"sp804\", 0x101e2000, pic[4]);\n\n sysbus_create_simple(\"sp804\", 0x101e3000, pic[5]);\n\n\n\n /* The versatile/PB actually has a modified Color LCD controller\n\n that includes hardware cursor support from the PL111. */\n\n sysbus_create_simple(\"pl110_versatile\", 0x10120000, pic[16]);\n\n\n\n sysbus_create_varargs(\"pl181\", 0x10005000, sic[22], sic[1], NULL);\n\n sysbus_create_varargs(\"pl181\", 0x1000b000, sic[23], sic[2], NULL);\n\n\n\n /* Add PL031 Real Time Clock. */\n\n sysbus_create_simple(\"pl031\", 0x101e8000, pic[10]);\n\n\n\n /* Memory map for Versatile/PB: */\n\n /* 0x10000000 System registers. */\n\n /* 0x10001000 PCI controller config registers. */\n\n /* 0x10002000 Serial bus interface. */\n\n /* 0x10003000 Secondary interrupt controller. */\n\n /* 0x10004000 AACI (audio). */\n\n /* 0x10005000 MMCI0. */\n\n /* 0x10006000 KMI0 (keyboard). */\n\n /* 0x10007000 KMI1 (mouse). */\n\n /* 0x10008000 Character LCD Interface. */\n\n /* 0x10009000 UART3. */\n\n /* 0x1000a000 Smart card 1. */\n\n /* 0x1000b000 MMCI1. */\n\n /* 0x10010000 Ethernet. */\n\n /* 0x10020000 USB. */\n\n /* 0x10100000 SSMC. */\n\n /* 0x10110000 MPMC. */\n\n /* 0x10120000 CLCD Controller. */\n\n /* 0x10130000 DMA Controller. */\n\n /* 0x10140000 Vectored interrupt controller. */\n\n /* 0x101d0000 AHB Monitor Interface. */\n\n /* 0x101e0000 System Controller. */\n\n /* 0x101e1000 Watchdog Interface. */\n\n /* 0x101e2000 Timer 0/1. */\n\n /* 0x101e3000 Timer 2/3. */\n\n /* 0x101e4000 GPIO port 0. */\n\n /* 0x101e5000 GPIO port 1. */\n\n /* 0x101e6000 GPIO port 2. */\n\n /* 0x101e7000 GPIO port 3. */\n\n /* 0x101e8000 RTC. */\n\n /* 0x101f0000 Smart card 0. */\n\n /* 0x101f1000 UART0. */\n\n /* 0x101f2000 UART1. */\n\n /* 0x101f3000 UART2. */\n\n /* 0x101f4000 SSPI. */\n\n\n\n versatile_binfo.ram_size = ram_size;\n\n versatile_binfo.kernel_filename = kernel_filename;\n\n versatile_binfo.kernel_cmdline = kernel_cmdline;\n\n versatile_binfo.initrd_filename = initrd_filename;\n\n versatile_binfo.board_id = board_id;\n\n arm_load_kernel(env, &versatile_binfo);\n\n}\n", + "output": "1", + "index": 22243 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,\n\n struct msghdr *msgh)\n\n{\n\n struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);\n\n abi_long msg_controllen;\n\n abi_ulong target_cmsg_addr;\n\n struct target_cmsghdr *target_cmsg, *target_cmsg_start;\n\n socklen_t space = 0;\n\n\n\n msg_controllen = tswapal(target_msgh->msg_controllen);\n\n if (msg_controllen < sizeof (struct target_cmsghdr)) \n\n goto the_end;\n\n target_cmsg_addr = tswapal(target_msgh->msg_control);\n\n target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0);\n\n target_cmsg_start = target_cmsg;\n\n if (!target_cmsg)\n\n return -TARGET_EFAULT;\n\n\n\n while (cmsg && target_cmsg) {\n\n void *data = CMSG_DATA(cmsg);\n\n void *target_data = TARGET_CMSG_DATA(target_cmsg);\n\n\n\n int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));\n\n int tgt_len, tgt_space;\n\n\n\n /* We never copy a half-header but may copy half-data;\n\n * this is Linux's behaviour in put_cmsg(). Note that\n\n * truncation here is a guest problem (which we report\n\n * to the guest via the CTRUNC bit), unlike truncation\n\n * in target_to_host_cmsg, which is a QEMU bug.\n\n */\n\n if (msg_controllen < sizeof(struct cmsghdr)) {\n\n target_msgh->msg_flags |= tswap32(MSG_CTRUNC);\n\n break;\n\n }\n\n\n\n if (cmsg->cmsg_level == SOL_SOCKET) {\n\n target_cmsg->cmsg_level = tswap32(TARGET_SOL_SOCKET);\n\n } else {\n\n target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);\n\n }\n\n target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);\n\n\n\n tgt_len = TARGET_CMSG_LEN(len);\n\n\n\n /* Payload types which need a different size of payload on\n\n * the target must adjust tgt_len here.\n\n */\n\n switch (cmsg->cmsg_level) {\n\n case SOL_SOCKET:\n\n switch (cmsg->cmsg_type) {\n\n case SO_TIMESTAMP:\n\n tgt_len = sizeof(struct target_timeval);\n\n break;\n\n default:\n\n break;\n\n }\n\n default:\n\n break;\n\n }\n\n\n\n if (msg_controllen < tgt_len) {\n\n target_msgh->msg_flags |= tswap32(MSG_CTRUNC);\n\n tgt_len = msg_controllen;\n\n }\n\n\n\n /* We must now copy-and-convert len bytes of payload\n\n * into tgt_len bytes of destination space. Bear in mind\n\n * that in both source and destination we may be dealing\n\n * with a truncated value!\n\n */\n\n switch (cmsg->cmsg_level) {\n\n case SOL_SOCKET:\n\n switch (cmsg->cmsg_type) {\n\n case SCM_RIGHTS:\n\n {\n\n int *fd = (int *)data;\n\n int *target_fd = (int *)target_data;\n\n int i, numfds = tgt_len / sizeof(int);\n\n\n\n for (i = 0; i < numfds; i++) {\n\n __put_user(fd[i], target_fd + i);\n\n }\n\n break;\n\n }\n\n case SO_TIMESTAMP:\n\n {\n\n struct timeval *tv = (struct timeval *)data;\n\n struct target_timeval *target_tv =\n\n (struct target_timeval *)target_data;\n\n\n\n if (len != sizeof(struct timeval) ||\n\n tgt_len != sizeof(struct target_timeval)) {\n\n goto unimplemented;\n\n }\n\n\n\n /* copy struct timeval to target */\n\n __put_user(tv->tv_sec, &target_tv->tv_sec);\n\n __put_user(tv->tv_usec, &target_tv->tv_usec);\n\n break;\n\n }\n\n case SCM_CREDENTIALS:\n\n {\n\n struct ucred *cred = (struct ucred *)data;\n\n struct target_ucred *target_cred =\n\n (struct target_ucred *)target_data;\n\n\n\n __put_user(cred->pid, &target_cred->pid);\n\n __put_user(cred->uid, &target_cred->uid);\n\n __put_user(cred->gid, &target_cred->gid);\n\n break;\n\n }\n\n default:\n\n goto unimplemented;\n\n }\n\n break;\n\n\n\n case SOL_IP:\n\n switch (cmsg->cmsg_type) {\n\n case IP_TTL:\n\n {\n\n uint32_t *v = (uint32_t *)data;\n\n uint32_t *t_int = (uint32_t *)target_data;\n\n\n\n __put_user(*v, t_int);\n\n break;\n\n }\n\n case IP_RECVERR:\n\n {\n\n struct errhdr_t {\n\n struct sock_extended_err ee;\n\n struct sockaddr_in offender;\n\n };\n\n struct errhdr_t *errh = (struct errhdr_t *)data;\n\n struct errhdr_t *target_errh =\n\n (struct errhdr_t *)target_data;\n\n\n\n __put_user(errh->ee.ee_errno, &target_errh->ee.ee_errno);\n\n __put_user(errh->ee.ee_origin, &target_errh->ee.ee_origin);\n\n __put_user(errh->ee.ee_type, &target_errh->ee.ee_type);\n\n __put_user(errh->ee.ee_code, &target_errh->ee.ee_code);\n\n __put_user(errh->ee.ee_pad, &target_errh->ee.ee_pad);\n\n __put_user(errh->ee.ee_info, &target_errh->ee.ee_info);\n\n __put_user(errh->ee.ee_data, &target_errh->ee.ee_data);\n\n host_to_target_sockaddr((unsigned long) &target_errh->offender,\n\n (void *) &errh->offender, sizeof(errh->offender));\n\n break;\n\n }\n\n default:\n\n goto unimplemented;\n\n }\n\n break;\n\n\n\n case SOL_IPV6:\n\n switch (cmsg->cmsg_type) {\n\n case IPV6_HOPLIMIT:\n\n {\n\n uint32_t *v = (uint32_t *)data;\n\n uint32_t *t_int = (uint32_t *)target_data;\n\n\n\n __put_user(*v, t_int);\n\n break;\n\n }\n\n case IPV6_RECVERR:\n\n {\n\n struct errhdr6_t {\n\n struct sock_extended_err ee;\n\n struct sockaddr_in6 offender;\n\n };\n\n struct errhdr6_t *errh = (struct errhdr6_t *)data;\n\n struct errhdr6_t *target_errh =\n\n (struct errhdr6_t *)target_data;\n\n\n\n __put_user(errh->ee.ee_errno, &target_errh->ee.ee_errno);\n\n __put_user(errh->ee.ee_origin, &target_errh->ee.ee_origin);\n\n __put_user(errh->ee.ee_type, &target_errh->ee.ee_type);\n\n __put_user(errh->ee.ee_code, &target_errh->ee.ee_code);\n\n __put_user(errh->ee.ee_pad, &target_errh->ee.ee_pad);\n\n __put_user(errh->ee.ee_info, &target_errh->ee.ee_info);\n\n __put_user(errh->ee.ee_data, &target_errh->ee.ee_data);\n\n host_to_target_sockaddr((unsigned long) &target_errh->offender,\n\n (void *) &errh->offender, sizeof(errh->offender));\n\n break;\n\n }\n\n default:\n\n goto unimplemented;\n\n }\n\n break;\n\n\n\n default:\n\n unimplemented:\n\n gemu_log(\"Unsupported ancillary data: %d/%d\\n\",\n\n cmsg->cmsg_level, cmsg->cmsg_type);\n\n memcpy(target_data, data, MIN(len, tgt_len));\n\n if (tgt_len > len) {\n\n memset(target_data + len, 0, tgt_len - len);\n\n }\n\n }\n\n\n\n target_cmsg->cmsg_len = tswapal(tgt_len);\n\n tgt_space = TARGET_CMSG_SPACE(len);\n\n if (msg_controllen < tgt_space) {\n\n tgt_space = msg_controllen;\n\n }\n\n msg_controllen -= tgt_space;\n\n space += tgt_space;\n\n cmsg = CMSG_NXTHDR(msgh, cmsg);\n\n target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg,\n\n target_cmsg_start);\n\n }\n\n unlock_user(target_cmsg, target_cmsg_addr, space);\n\n the_end:\n\n target_msgh->msg_controllen = tswapal(space);\n\n return 0;\n\n}\n", + "output": "1", + "index": 24470 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void ppc_prep_init(QEMUMachineInitArgs *args)\n\n{\n\n ram_addr_t ram_size = args->ram_size;\n\n const char *cpu_model = args->cpu_model;\n\n const char *kernel_filename = args->kernel_filename;\n\n const char *kernel_cmdline = args->kernel_cmdline;\n\n const char *initrd_filename = args->initrd_filename;\n\n const char *boot_device = args->boot_order;\n\n MemoryRegion *sysmem = get_system_memory();\n\n PowerPCCPU *cpu = NULL;\n\n CPUPPCState *env = NULL;\n\n nvram_t nvram;\n\n M48t59State *m48t59;\n\n PortioList *port_list = g_new(PortioList, 1);\n\n#if 0\n\n MemoryRegion *xcsr = g_new(MemoryRegion, 1);\n\n#endif\n\n int linux_boot, i, nb_nics1;\n\n MemoryRegion *ram = g_new(MemoryRegion, 1);\n\n MemoryRegion *vga = g_new(MemoryRegion, 1);\n\n uint32_t kernel_base, initrd_base;\n\n long kernel_size, initrd_size;\n\n DeviceState *dev;\n\n PCIHostState *pcihost;\n\n PCIBus *pci_bus;\n\n PCIDevice *pci;\n\n ISABus *isa_bus;\n\n ISADevice *isa;\n\n qemu_irq *cpu_exit_irq;\n\n int ppc_boot_device;\n\n DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];\n\n\n\n sysctrl = g_malloc0(sizeof(sysctrl_t));\n\n\n\n linux_boot = (kernel_filename != NULL);\n\n\n\n /* init CPUs */\n\n if (cpu_model == NULL)\n\n cpu_model = \"602\";\n\n for (i = 0; i < smp_cpus; i++) {\n\n cpu = cpu_ppc_init(cpu_model);\n\n if (cpu == NULL) {\n\n fprintf(stderr, \"Unable to find PowerPC CPU definition\\n\");\n\n exit(1);\n\n }\n\n env = &cpu->env;\n\n\n\n if (env->flags & POWERPC_FLAG_RTC_CLK) {\n\n /* POWER / PowerPC 601 RTC clock frequency is 7.8125 MHz */\n\n cpu_ppc_tb_init(env, 7812500UL);\n\n } else {\n\n /* Set time-base frequency to 100 Mhz */\n\n cpu_ppc_tb_init(env, 100UL * 1000UL * 1000UL);\n\n }\n\n qemu_register_reset(ppc_prep_reset, cpu);\n\n }\n\n\n\n /* allocate RAM */\n\n memory_region_init_ram(ram, NULL, \"ppc_prep.ram\", ram_size);\n\n vmstate_register_ram_global(ram);\n\n memory_region_add_subregion(sysmem, 0, ram);\n\n\n\n if (linux_boot) {\n\n kernel_base = KERNEL_LOAD_ADDR;\n\n /* now we can load the kernel */\n\n kernel_size = load_image_targphys(kernel_filename, kernel_base,\n\n ram_size - kernel_base);\n\n if (kernel_size < 0) {\n\n hw_error(\"qemu: could not load kernel '%s'\\n\", kernel_filename);\n\n exit(1);\n\n }\n\n /* load initrd */\n\n if (initrd_filename) {\n\n initrd_base = INITRD_LOAD_ADDR;\n\n initrd_size = load_image_targphys(initrd_filename, initrd_base,\n\n ram_size - initrd_base);\n\n if (initrd_size < 0) {\n\n hw_error(\"qemu: could not load initial ram disk '%s'\\n\",\n\n initrd_filename);\n\n }\n\n } else {\n\n initrd_base = 0;\n\n initrd_size = 0;\n\n }\n\n ppc_boot_device = 'm';\n\n } else {\n\n kernel_base = 0;\n\n kernel_size = 0;\n\n initrd_base = 0;\n\n initrd_size = 0;\n\n ppc_boot_device = '\\0';\n\n /* For now, OHW cannot boot from the network. */\n\n for (i = 0; boot_device[i] != '\\0'; i++) {\n\n if (boot_device[i] >= 'a' && boot_device[i] <= 'f') {\n\n ppc_boot_device = boot_device[i];\n\n break;\n\n }\n\n }\n\n if (ppc_boot_device == '\\0') {\n\n fprintf(stderr, \"No valid boot device for Mac99 machine\\n\");\n\n exit(1);\n\n }\n\n }\n\n\n\n if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {\n\n hw_error(\"Only 6xx bus is supported on PREP machine\\n\");\n\n }\n\n\n\n dev = qdev_create(NULL, \"raven-pcihost\");\n\n if (bios_name == NULL) {\n\n bios_name = BIOS_FILENAME;\n\n }\n\n qdev_prop_set_string(dev, \"bios-name\", bios_name);\n\n qdev_prop_set_uint32(dev, \"elf-machine\", ELF_MACHINE);\n\n pcihost = PCI_HOST_BRIDGE(dev);\n\n object_property_add_child(qdev_get_machine(), \"raven\", OBJECT(dev), NULL);\n\n qdev_init_nofail(dev);\n\n pci_bus = (PCIBus *)qdev_get_child_bus(dev, \"pci.0\");\n\n if (pci_bus == NULL) {\n\n fprintf(stderr, \"Couldn't create PCI host controller.\\n\");\n\n exit(1);\n\n }\n\n sysctrl->contiguous_map_irq = qdev_get_gpio_in(dev, 0);\n\n\n\n /* PCI -> ISA bridge */\n\n pci = pci_create_simple(pci_bus, PCI_DEVFN(1, 0), \"i82378\");\n\n cpu_exit_irq = qemu_allocate_irqs(cpu_request_exit, NULL, 1);\n\n cpu = POWERPC_CPU(first_cpu);\n\n qdev_connect_gpio_out(&pci->qdev, 0,\n\n cpu->env.irq_inputs[PPC6xx_INPUT_INT]);\n\n qdev_connect_gpio_out(&pci->qdev, 1, *cpu_exit_irq);\n\n sysbus_connect_irq(&pcihost->busdev, 0, qdev_get_gpio_in(&pci->qdev, 9));\n\n sysbus_connect_irq(&pcihost->busdev, 1, qdev_get_gpio_in(&pci->qdev, 11));\n\n sysbus_connect_irq(&pcihost->busdev, 2, qdev_get_gpio_in(&pci->qdev, 9));\n\n sysbus_connect_irq(&pcihost->busdev, 3, qdev_get_gpio_in(&pci->qdev, 11));\n\n isa_bus = ISA_BUS(qdev_get_child_bus(DEVICE(pci), \"isa.0\"));\n\n\n\n /* Super I/O (parallel + serial ports) */\n\n isa = isa_create(isa_bus, TYPE_PC87312);\n\n dev = DEVICE(isa);\n\n qdev_prop_set_uint8(dev, \"config\", 13); /* fdc, ser0, ser1, par0 */\n\n qdev_init_nofail(dev);\n\n\n\n /* init basic PC hardware */\n\n pci_vga_init(pci_bus);\n\n /* Open Hack'Ware hack: PCI BAR#0 is programmed to 0xf0000000.\n\n * While bios will access framebuffer at 0xf0000000, real physical\n\n * address is 0xf0000000 + 0xc0000000 (PCI memory base).\n\n * Alias the wrong memory accesses to the right place.\n\n */\n\n memory_region_init_alias(vga, NULL, \"vga-alias\", pci_address_space(pci),\n\n 0xf0000000, 0x1000000);\n\n memory_region_add_subregion_overlap(sysmem, 0xf0000000, vga, 10);\n\n\n\n nb_nics1 = nb_nics;\n\n if (nb_nics1 > NE2000_NB_MAX)\n\n nb_nics1 = NE2000_NB_MAX;\n\n for(i = 0; i < nb_nics1; i++) {\n\n if (nd_table[i].model == NULL) {\n\n\t nd_table[i].model = g_strdup(\"ne2k_isa\");\n\n }\n\n if (strcmp(nd_table[i].model, \"ne2k_isa\") == 0) {\n\n isa_ne2000_init(isa_bus, ne2000_io[i], ne2000_irq[i],\n\n &nd_table[i]);\n\n } else {\n\n pci_nic_init_nofail(&nd_table[i], pci_bus, \"ne2k_pci\", NULL);\n\n }\n\n }\n\n\n\n ide_drive_get(hd, MAX_IDE_BUS);\n\n for(i = 0; i < MAX_IDE_BUS; i++) {\n\n isa_ide_init(isa_bus, ide_iobase[i], ide_iobase2[i], ide_irq[i],\n\n hd[2 * i],\n\n\t\t hd[2 * i + 1]);\n\n }\n\n isa_create_simple(isa_bus, \"i8042\");\n\n\n\n cpu = POWERPC_CPU(first_cpu);\n\n sysctrl->reset_irq = cpu->env.irq_inputs[PPC6xx_INPUT_HRESET];\n\n\n\n portio_list_init(port_list, NULL, prep_portio_list, sysctrl, \"prep\");\n\n portio_list_add(port_list, isa_address_space_io(isa), 0x0);\n\n\n\n /* PowerPC control and status register group */\n\n#if 0\n\n memory_region_init_io(xcsr, NULL, &PPC_XCSR_ops, NULL, \"ppc-xcsr\", 0x1000);\n\n memory_region_add_subregion(sysmem, 0xFEFF0000, xcsr);\n\n#endif\n\n\n\n if (usb_enabled(false)) {\n\n pci_create_simple(pci_bus, -1, \"pci-ohci\");\n\n }\n\n\n\n m48t59 = m48t59_init_isa(isa_bus, 0x0074, NVRAM_SIZE, 59);\n\n if (m48t59 == NULL)\n\n return;\n\n sysctrl->nvram = m48t59;\n\n\n\n /* Initialise NVRAM */\n\n nvram.opaque = m48t59;\n\n nvram.read_fn = &m48t59_read;\n\n nvram.write_fn = &m48t59_write;\n\n PPC_NVRAM_set_params(&nvram, NVRAM_SIZE, \"PREP\", ram_size, ppc_boot_device,\n\n kernel_base, kernel_size,\n\n kernel_cmdline,\n\n initrd_base, initrd_size,\n\n /* XXX: need an option to load a NVRAM image */\n\n 0,\n\n graphic_width, graphic_height, graphic_depth);\n\n}\n", + "output": "1", + "index": 9331 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int ff_jpegls_decode_picture(MJpegDecodeContext *s, int near, int point_transform, int ilv){\n\n int i, t = 0;\n\n uint8_t *zero, *last, *cur;\n\n JLSState *state;\n\n int off = 0, stride = 1, width, shift;\n\n\n\n zero = av_mallocz(s->picture.linesize[0]);\n\n last = zero;\n\n cur = s->picture.data[0];\n\n\n\n state = av_mallocz(sizeof(JLSState));\n\n /* initialize JPEG-LS state from JPEG parameters */\n\n state->near = near;\n\n state->bpp = (s->bits < 2) ? 2 : s->bits;\n\n state->maxval = s->maxval;\n\n state->T1 = s->t1;\n\n state->T2 = s->t2;\n\n state->T3 = s->t3;\n\n state->reset = s->reset;\n\n ff_jpegls_reset_coding_parameters(state, 0);\n\n ff_jpegls_init_state(state);\n\n\n\n if(s->bits <= 8)\n\n shift = point_transform + (8 - s->bits);\n\n else\n\n shift = point_transform + (16 - s->bits);\n\n\n\n if (s->avctx->debug & FF_DEBUG_PICT_INFO) {\n\n av_log(s->avctx, AV_LOG_DEBUG, \"JPEG-LS params: %ix%i NEAR=%i MV=%i T(%i,%i,%i) RESET=%i, LIMIT=%i, qbpp=%i, RANGE=%i\\n\",\n\n s->width, s->height, state->near, state->maxval,\n\n state->T1, state->T2, state->T3,\n\n state->reset, state->limit, state->qbpp, state->range);\n\n av_log(s->avctx, AV_LOG_DEBUG, \"JPEG params: ILV=%i Pt=%i BPP=%i, scan = %i\\n\",\n\n ilv, point_transform, s->bits, s->cur_scan);\n\n }\n\n if(ilv == 0) { /* separate planes */\n\n stride = (s->nb_components > 1) ? 3 : 1;\n\n off = av_clip(s->cur_scan - 1, 0, stride);\n\n width = s->width * stride;\n\n cur += off;\n\n for(i = 0; i < s->height; i++) {\n\n if(s->bits <= 8){\n\n ls_decode_line(state, s, last, cur, t, width, stride, off, 8);\n\n t = last[0];\n\n }else{\n\n ls_decode_line(state, s, last, cur, t, width, stride, off, 16);\n\n t = *((uint16_t*)last);\n\n }\n\n last = cur;\n\n cur += s->picture.linesize[0];\n\n\n\n if (s->restart_interval && !--s->restart_count) {\n\n align_get_bits(&s->gb);\n\n skip_bits(&s->gb, 16); /* skip RSTn */\n\n }\n\n }\n\n } else if(ilv == 1) { /* line interleaving */\n\n int j;\n\n int Rc[3] = {0, 0, 0};\n\n stride = (s->nb_components > 1) ? 3 : 1;\n\n memset(cur, 0, s->picture.linesize[0]);\n\n width = s->width * stride;\n\n for(i = 0; i < s->height; i++) {\n\n for(j = 0; j < stride; j++) {\n\n ls_decode_line(state, s, last + j, cur + j, Rc[j], width, stride, j, 8);\n\n Rc[j] = last[j];\n\n\n\n if (s->restart_interval && !--s->restart_count) {\n\n align_get_bits(&s->gb);\n\n skip_bits(&s->gb, 16); /* skip RSTn */\n\n }\n\n }\n\n last = cur;\n\n cur += s->picture.linesize[0];\n\n }\n\n } else if(ilv == 2) { /* sample interleaving */\n\n av_log(s->avctx, AV_LOG_ERROR, \"Sample interleaved images are not supported.\\n\");\n\n av_free(state);\n\n av_free(zero);\n\n return -1;\n\n }\n\n\n\n if(shift){ /* we need to do point transform or normalize samples */\n\n int x, w;\n\n\n\n w = s->width * s->nb_components;\n\n\n\n if(s->bits <= 8){\n\n uint8_t *src = s->picture.data[0];\n\n\n\n for(i = 0; i < s->height; i++){\n\n for(x = off; x < w; x+= stride){\n\n src[x] <<= shift;\n\n }\n\n src += s->picture.linesize[0];\n\n }\n\n }else{\n\n uint16_t *src = (uint16_t*) s->picture.data[0];\n\n\n\n for(i = 0; i < s->height; i++){\n\n for(x = 0; x < w; x++){\n\n src[x] <<= shift;\n\n }\n\n src += s->picture.linesize[0]/2;\n\n }\n\n }\n\n }\n\n av_free(state);\n\n av_free(zero);\n\n\n\n return 0;\n\n}\n", + "output": "0", + "index": 19503 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "void intra_predict(VP8Context *s, uint8_t *dst[3], VP8Macroblock *mb,\n\n int mb_x, int mb_y)\n\n{\n\n AVCodecContext *avctx = s->avctx;\n\n int x, y, mode, nnz, tr;\n\n\n\n // for the first row, we need to run xchg_mb_border to init the top edge to 127\n\n // otherwise, skip it if we aren't going to deblock\n\n if (!(avctx->flags & CODEC_FLAG_EMU_EDGE && !mb_y) && (s->deblock_filter || !mb_y))\n\n xchg_mb_border(s->top_border[mb_x+1], dst[0], dst[1], dst[2],\n\n s->linesize, s->uvlinesize, mb_x, mb_y, s->mb_width,\n\n s->filter.simple, 1);\n\n\n\n if (mb->mode < MODE_I4x4) {\n\n if (avctx->flags & CODEC_FLAG_EMU_EDGE) { // tested\n\n mode = check_intra_pred8x8_mode_emuedge(mb->mode, mb_x, mb_y);\n\n } else {\n\n mode = check_intra_pred8x8_mode(mb->mode, mb_x, mb_y);\n\n }\n\n s->hpc.pred16x16[mode](dst[0], s->linesize);\n\n } else {\n\n uint8_t *ptr = dst[0];\n\n uint8_t *intra4x4 = s->intra4x4_pred_mode_mb;\n\n uint8_t tr_top[4] = { 127, 127, 127, 127 };\n\n\n\n // all blocks on the right edge of the macroblock use bottom edge\n\n // the top macroblock for their topright edge\n\n uint8_t *tr_right = ptr - s->linesize + 16;\n\n\n\n // if we're on the right edge of the frame, said edge is extended\n\n // from the top macroblock\n\n if (mb_x == s->mb_width-1) {\n\n tr = tr_right[-1]*0x01010101;\n\n tr_right = (uint8_t *)&tr;\n\n }\n\n\n\n if (mb->skip)\n\n AV_ZERO128(s->non_zero_count_cache);\n\n\n\n for (y = 0; y < 4; y++) {\n\n uint8_t *topright = ptr + 4 - s->linesize;\n\n for (x = 0; x < 4; x++) {\n\n int copy = 0, linesize = s->linesize;\n\n uint8_t *dst = ptr+4*x;\n\n DECLARE_ALIGNED(4, uint8_t, copy_dst)[5*8];\n\n\n\n if ((y == 0 || x == 3) && mb_y == 0 && avctx->flags & CODEC_FLAG_EMU_EDGE) {\n\n topright = tr_top;\n\n } else if (x == 3)\n\n topright = tr_right;\n\n\n\n if (avctx->flags & CODEC_FLAG_EMU_EDGE) { // mb_x+x or mb_y+y is a hack but works\n\n mode = check_intra_pred4x4_mode_emuedge(intra4x4[x], mb_x + x, mb_y + y, ©);\n\n if (copy) {\n\n dst = copy_dst + 12;\n\n linesize = 8;\n\n if (!(mb_y + y)) {\n\n copy_dst[3] = 127U;\n\n * (uint32_t *) (copy_dst + 4) = 127U * 0x01010101U;\n\n } else {\n\n * (uint32_t *) (copy_dst + 4) = * (uint32_t *) (ptr+4*x-s->linesize);\n\n if (!(mb_x + x)) {\n\n copy_dst[3] = 129U;\n\n } else {\n\n copy_dst[3] = ptr[4*x-s->linesize-1];\n\n }\n\n }\n\n if (!(mb_x + x)) {\n\n copy_dst[11] =\n\n copy_dst[19] =\n\n copy_dst[27] =\n\n copy_dst[35] = 129U;\n\n } else {\n\n copy_dst[11] = ptr[4*x -1];\n\n copy_dst[19] = ptr[4*x+s->linesize -1];\n\n copy_dst[27] = ptr[4*x+s->linesize*2-1];\n\n copy_dst[35] = ptr[4*x+s->linesize*3-1];\n\n }\n\n }\n\n } else {\n\n mode = intra4x4[x];\n\n }\n\n s->hpc.pred4x4[mode](dst, topright, linesize);\n\n if (copy) {\n\n * (uint32_t *) (ptr+4*x) = * (uint32_t *) (copy_dst + 12);\n\n * (uint32_t *) (ptr+4*x+s->linesize) = * (uint32_t *) (copy_dst + 20);\n\n * (uint32_t *) (ptr+4*x+s->linesize*2) = * (uint32_t *) (copy_dst + 28);\n\n * (uint32_t *) (ptr+4*x+s->linesize*3) = * (uint32_t *) (copy_dst + 36);\n\n }\n\n\n\n nnz = s->non_zero_count_cache[y][x];\n\n if (nnz) {\n\n if (nnz == 1)\n\n s->vp8dsp.vp8_idct_dc_add(ptr+4*x, s->block[y][x], s->linesize);\n\n else\n\n s->vp8dsp.vp8_idct_add(ptr+4*x, s->block[y][x], s->linesize);\n\n }\n\n topright += 4;\n\n }\n\n\n\n ptr += 4*s->linesize;\n\n intra4x4 += 4;\n\n }\n\n }\n\n\n\n if (avctx->flags & CODEC_FLAG_EMU_EDGE) {\n\n mode = check_intra_pred8x8_mode_emuedge(s->chroma_pred_mode, mb_x, mb_y);\n\n } else {\n\n mode = check_intra_pred8x8_mode(s->chroma_pred_mode, mb_x, mb_y);\n\n }\n\n s->hpc.pred8x8[mode](dst[1], s->uvlinesize);\n\n s->hpc.pred8x8[mode](dst[2], s->uvlinesize);\n\n\n\n if (!(avctx->flags & CODEC_FLAG_EMU_EDGE && !mb_y) && (s->deblock_filter || !mb_y))\n\n xchg_mb_border(s->top_border[mb_x+1], dst[0], dst[1], dst[2],\n\n s->linesize, s->uvlinesize, mb_x, mb_y, s->mb_width,\n\n s->filter.simple, 0);\n\n}\n", + "output": "1", + "index": 19977 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static float quantize_band_cost(struct AACEncContext *s, const float *in,\n\n const float *scaled, int size, int scale_idx,\n\n int cb, const float lambda, const float uplim,\n\n int *bits)\n\n{\n\n const float IQ = ff_aac_pow2sf_tab[200 + scale_idx - SCALE_ONE_POS + SCALE_DIV_512];\n\n const float Q = ff_aac_pow2sf_tab[200 - scale_idx + SCALE_ONE_POS - SCALE_DIV_512];\n\n const float CLIPPED_ESCAPE = 165140.0f*IQ;\n\n int i, j, k;\n\n float cost = 0;\n\n const int dim = cb < FIRST_PAIR_BT ? 4 : 2;\n\n int resbits = 0;\n\n#ifndef USE_REALLY_FULL_SEARCH\n\n const float Q34 = sqrtf(Q * sqrtf(Q));\n\n const int range = aac_cb_range[cb];\n\n const int maxval = aac_cb_maxval[cb];\n\n int offs[4];\n\n#endif /* USE_REALLY_FULL_SEARCH */\n\n\n\n if (!cb) {\n\n for (i = 0; i < size; i++)\n\n cost += in[i]*in[i];\n\n if (bits)\n\n *bits = 0;\n\n return cost * lambda;\n\n }\n\n#ifndef USE_REALLY_FULL_SEARCH\n\n offs[0] = 1;\n\n for (i = 1; i < dim; i++)\n\n offs[i] = offs[i-1]*range;\n\n quantize_bands(s->qcoefs, in, scaled, size, Q34, !IS_CODEBOOK_UNSIGNED(cb), maxval);\n\n#endif /* USE_REALLY_FULL_SEARCH */\n\n for (i = 0; i < size; i += dim) {\n\n float mincost;\n\n int minidx = 0;\n\n int minbits = 0;\n\n const float *vec;\n\n#ifndef USE_REALLY_FULL_SEARCH\n\n int (*quants)[2] = &s->qcoefs[i];\n\n mincost = 0.0f;\n\n for (j = 0; j < dim; j++)\n\n mincost += in[i+j]*in[i+j];\n\n minidx = IS_CODEBOOK_UNSIGNED(cb) ? 0 : 40;\n\n minbits = ff_aac_spectral_bits[cb-1][minidx];\n\n mincost = mincost * lambda + minbits;\n\n for (j = 0; j < (1<= CLIPPED_ESCAPE) {\n\n di = t - CLIPPED_ESCAPE;\n\n curbits += 21;\n\n } else {\n\n int c = av_clip(quant(t, Q), 0, 8191);\n\n di = t - c*cbrtf(c)*IQ;\n\n curbits += av_log2(c)*2 - 4 + 1;\n\n }\n\n } else {\n\n di = t - vec[k]*IQ;\n\n }\n\n if (vec[k] != 0.0f)\n\n curbits++;\n\n rd += di*di;\n\n }\n\n } else {\n\n for (k = 0; k < dim; k++) {\n\n float di = in[i+k] - vec[k]*IQ;\n\n rd += di*di;\n\n }\n\n }\n\n rd = rd * lambda + curbits;\n\n if (rd < mincost) {\n\n mincost = rd;\n\n minidx = j;\n\n minbits = curbits;\n\n }\n\n }\n\n cost += mincost;\n\n resbits += minbits;\n\n if (cost >= uplim)\n\n return uplim;\n\n }\n\n\n\n if (bits)\n\n *bits = resbits;\n\n return cost;\n\n}\n", + "output": "1", + "index": 13794 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "DriveInfo *drive_init(QemuOpts *opts, int default_to_scsi)\n\n{\n\n const char *buf;\n\n const char *file = NULL;\n\n char devname[128];\n\n const char *serial;\n\n const char *mediastr = \"\";\n\n BlockInterfaceType type;\n\n enum { MEDIA_DISK, MEDIA_CDROM } media;\n\n int bus_id, unit_id;\n\n int cyls, heads, secs, translation;\n\n BlockDriver *drv = NULL;\n\n int max_devs;\n\n int index;\n\n int ro = 0;\n\n int bdrv_flags = 0;\n\n int on_read_error, on_write_error;\n\n const char *devaddr;\n\n DriveInfo *dinfo;\n\n int snapshot = 0;\n\n int ret;\n\n\n\n translation = BIOS_ATA_TRANSLATION_AUTO;\n\n\n\n if (default_to_scsi) {\n\n type = IF_SCSI;\n\n pstrcpy(devname, sizeof(devname), \"scsi\");\n\n } else {\n\n type = IF_IDE;\n\n pstrcpy(devname, sizeof(devname), \"ide\");\n\n }\n\n media = MEDIA_DISK;\n\n\n\n /* extract parameters */\n\n bus_id = qemu_opt_get_number(opts, \"bus\", 0);\n\n unit_id = qemu_opt_get_number(opts, \"unit\", -1);\n\n index = qemu_opt_get_number(opts, \"index\", -1);\n\n\n\n cyls = qemu_opt_get_number(opts, \"cyls\", 0);\n\n heads = qemu_opt_get_number(opts, \"heads\", 0);\n\n secs = qemu_opt_get_number(opts, \"secs\", 0);\n\n\n\n snapshot = qemu_opt_get_bool(opts, \"snapshot\", 0);\n\n ro = qemu_opt_get_bool(opts, \"readonly\", 0);\n\n\n\n file = qemu_opt_get(opts, \"file\");\n\n serial = qemu_opt_get(opts, \"serial\");\n\n\n\n if ((buf = qemu_opt_get(opts, \"if\")) != NULL) {\n\n pstrcpy(devname, sizeof(devname), buf);\n\n for (type = 0; type < IF_COUNT && strcmp(buf, if_name[type]); type++)\n\n ;\n\n if (type == IF_COUNT) {\n\n error_report(\"unsupported bus type '%s'\", buf);\n\n return NULL;\n\n\t}\n\n }\n\n max_devs = if_max_devs[type];\n\n\n\n if (cyls || heads || secs) {\n\n if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {\n\n error_report(\"invalid physical cyls number\");\n\n\t return NULL;\n\n\t}\n\n if (heads < 1 || (type == IF_IDE && heads > 16)) {\n\n error_report(\"invalid physical heads number\");\n\n\t return NULL;\n\n\t}\n\n if (secs < 1 || (type == IF_IDE && secs > 63)) {\n\n error_report(\"invalid physical secs number\");\n\n\t return NULL;\n\n\t}\n\n }\n\n\n\n if ((buf = qemu_opt_get(opts, \"trans\")) != NULL) {\n\n if (!cyls) {\n\n error_report(\"'%s' trans must be used with cyls,heads and secs\",\n\n buf);\n\n return NULL;\n\n }\n\n if (!strcmp(buf, \"none\"))\n\n translation = BIOS_ATA_TRANSLATION_NONE;\n\n else if (!strcmp(buf, \"lba\"))\n\n translation = BIOS_ATA_TRANSLATION_LBA;\n\n else if (!strcmp(buf, \"auto\"))\n\n translation = BIOS_ATA_TRANSLATION_AUTO;\n\n\telse {\n\n error_report(\"'%s' invalid translation type\", buf);\n\n\t return NULL;\n\n\t}\n\n }\n\n\n\n if ((buf = qemu_opt_get(opts, \"media\")) != NULL) {\n\n if (!strcmp(buf, \"disk\")) {\n\n\t media = MEDIA_DISK;\n\n\t} else if (!strcmp(buf, \"cdrom\")) {\n\n if (cyls || secs || heads) {\n\n error_report(\"'%s' invalid physical CHS format\", buf);\n\n\t return NULL;\n\n }\n\n\t media = MEDIA_CDROM;\n\n\t} else {\n\n\t error_report(\"'%s' invalid media\", buf);\n\n\t return NULL;\n\n\t}\n\n }\n\n\n\n if ((buf = qemu_opt_get(opts, \"cache\")) != NULL) {\n\n if (!strcmp(buf, \"off\") || !strcmp(buf, \"none\")) {\n\n bdrv_flags |= BDRV_O_NOCACHE;\n\n } else if (!strcmp(buf, \"writeback\")) {\n\n bdrv_flags |= BDRV_O_CACHE_WB;\n\n } else if (!strcmp(buf, \"unsafe\")) {\n\n bdrv_flags |= BDRV_O_CACHE_WB;\n\n bdrv_flags |= BDRV_O_NO_FLUSH;\n\n } else if (!strcmp(buf, \"writethrough\")) {\n\n /* this is the default */\n\n } else {\n\n error_report(\"invalid cache option\");\n\n return NULL;\n\n }\n\n }\n\n\n\n#ifdef CONFIG_LINUX_AIO\n\n if ((buf = qemu_opt_get(opts, \"aio\")) != NULL) {\n\n if (!strcmp(buf, \"native\")) {\n\n bdrv_flags |= BDRV_O_NATIVE_AIO;\n\n } else if (!strcmp(buf, \"threads\")) {\n\n /* this is the default */\n\n } else {\n\n error_report(\"invalid aio option\");\n\n return NULL;\n\n }\n\n }\n\n#endif\n\n\n\n if ((buf = qemu_opt_get(opts, \"format\")) != NULL) {\n\n if (strcmp(buf, \"?\") == 0) {\n\n error_printf(\"Supported formats:\");\n\n bdrv_iterate_format(bdrv_format_print, NULL);\n\n error_printf(\"\\n\");\n\n return NULL;\n\n }\n\n drv = bdrv_find_whitelisted_format(buf);\n\n if (!drv) {\n\n error_report(\"'%s' invalid format\", buf);\n\n return NULL;\n\n }\n\n }\n\n\n\n on_write_error = BLOCK_ERR_STOP_ENOSPC;\n\n if ((buf = qemu_opt_get(opts, \"werror\")) != NULL) {\n\n if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO && type != IF_NONE) {\n\n error_report(\"werror is not supported by this bus type\");\n\n return NULL;\n\n }\n\n\n\n on_write_error = parse_block_error_action(buf, 0);\n\n if (on_write_error < 0) {\n\n return NULL;\n\n }\n\n }\n\n\n\n on_read_error = BLOCK_ERR_REPORT;\n\n if ((buf = qemu_opt_get(opts, \"rerror\")) != NULL) {\n\n if (type != IF_IDE && type != IF_VIRTIO && type != IF_SCSI && type != IF_NONE) {\n\n error_report(\"rerror is not supported by this bus type\");\n\n return NULL;\n\n }\n\n\n\n on_read_error = parse_block_error_action(buf, 1);\n\n if (on_read_error < 0) {\n\n return NULL;\n\n }\n\n }\n\n\n\n if ((devaddr = qemu_opt_get(opts, \"addr\")) != NULL) {\n\n if (type != IF_VIRTIO) {\n\n error_report(\"addr is not supported by this bus type\");\n\n return NULL;\n\n }\n\n }\n\n\n\n /* compute bus and unit according index */\n\n\n\n if (index != -1) {\n\n if (bus_id != 0 || unit_id != -1) {\n\n error_report(\"index cannot be used with bus and unit\");\n\n return NULL;\n\n }\n\n bus_id = drive_index_to_bus_id(type, index);\n\n unit_id = drive_index_to_unit_id(type, index);\n\n }\n\n\n\n /* if user doesn't specify a unit_id,\n\n * try to find the first free\n\n */\n\n\n\n if (unit_id == -1) {\n\n unit_id = 0;\n\n while (drive_get(type, bus_id, unit_id) != NULL) {\n\n unit_id++;\n\n if (max_devs && unit_id >= max_devs) {\n\n unit_id -= max_devs;\n\n bus_id++;\n\n }\n\n }\n\n }\n\n\n\n /* check unit id */\n\n\n\n if (max_devs && unit_id >= max_devs) {\n\n error_report(\"unit %d too big (max is %d)\",\n\n unit_id, max_devs - 1);\n\n return NULL;\n\n }\n\n\n\n /*\n\n * catch multiple definitions\n\n */\n\n\n\n if (drive_get(type, bus_id, unit_id) != NULL) {\n\n error_report(\"drive with bus=%d, unit=%d (index=%d) exists\",\n\n bus_id, unit_id, index);\n\n return NULL;\n\n }\n\n\n\n /* init */\n\n\n\n dinfo = qemu_mallocz(sizeof(*dinfo));\n\n if ((buf = qemu_opts_id(opts)) != NULL) {\n\n dinfo->id = qemu_strdup(buf);\n\n } else {\n\n /* no id supplied -> create one */\n\n dinfo->id = qemu_mallocz(32);\n\n if (type == IF_IDE || type == IF_SCSI)\n\n mediastr = (media == MEDIA_CDROM) ? \"-cd\" : \"-hd\";\n\n if (max_devs)\n\n snprintf(dinfo->id, 32, \"%s%i%s%i\",\n\n devname, bus_id, mediastr, unit_id);\n\n else\n\n snprintf(dinfo->id, 32, \"%s%s%i\",\n\n devname, mediastr, unit_id);\n\n }\n\n dinfo->bdrv = bdrv_new(dinfo->id);\n\n dinfo->devaddr = devaddr;\n\n dinfo->type = type;\n\n dinfo->bus = bus_id;\n\n dinfo->unit = unit_id;\n\n dinfo->opts = opts;\n\n dinfo->refcount = 1;\n\n if (serial)\n\n strncpy(dinfo->serial, serial, sizeof(dinfo->serial) - 1);\n\n QTAILQ_INSERT_TAIL(&drives, dinfo, next);\n\n\n\n bdrv_set_on_error(dinfo->bdrv, on_read_error, on_write_error);\n\n\n\n switch(type) {\n\n case IF_IDE:\n\n case IF_SCSI:\n\n case IF_XEN:\n\n case IF_NONE:\n\n switch(media) {\n\n\tcase MEDIA_DISK:\n\n if (cyls != 0) {\n\n bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);\n\n bdrv_set_translation_hint(dinfo->bdrv, translation);\n\n }\n\n\t break;\n\n\tcase MEDIA_CDROM:\n\n bdrv_set_removable(dinfo->bdrv, 1);\n\n dinfo->media_cd = 1;\n\n\t break;\n\n\t}\n\n break;\n\n case IF_SD:\n\n /* FIXME: This isn't really a floppy, but it's a reasonable\n\n approximation. */\n\n case IF_FLOPPY:\n\n bdrv_set_removable(dinfo->bdrv, 1);\n\n break;\n\n case IF_PFLASH:\n\n case IF_MTD:\n\n break;\n\n case IF_VIRTIO:\n\n /* add virtio block device */\n\n opts = qemu_opts_create(qemu_find_opts(\"device\"), NULL, 0);\n\n qemu_opt_set(opts, \"driver\", \"virtio-blk\");\n\n qemu_opt_set(opts, \"drive\", dinfo->id);\n\n if (devaddr)\n\n qemu_opt_set(opts, \"addr\", devaddr);\n\n break;\n\n default:\n\n abort();\n\n }\n\n if (!file || !*file) {\n\n return dinfo;\n\n }\n\n if (snapshot) {\n\n /* always use cache=unsafe with snapshot */\n\n bdrv_flags &= ~BDRV_O_CACHE_MASK;\n\n bdrv_flags |= (BDRV_O_SNAPSHOT|BDRV_O_CACHE_WB|BDRV_O_NO_FLUSH);\n\n }\n\n\n\n if (media == MEDIA_CDROM) {\n\n /* CDROM is fine for any interface, don't check. */\n\n ro = 1;\n\n } else if (ro == 1) {\n\n if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY && type != IF_NONE) {\n\n error_report(\"readonly not supported by this bus type\");\n\n goto err;\n\n }\n\n }\n\n\n\n bdrv_flags |= ro ? 0 : BDRV_O_RDWR;\n\n\n\n ret = bdrv_open(dinfo->bdrv, file, bdrv_flags, drv);\n\n if (ret < 0) {\n\n error_report(\"could not open disk image %s: %s\",\n\n file, strerror(-ret));\n\n goto err;\n\n }\n\n\n\n if (bdrv_key_required(dinfo->bdrv))\n\n autostart = 0;\n\n return dinfo;\n\n\n\nerr:\n\n bdrv_delete(dinfo->bdrv);\n\n qemu_free(dinfo->id);\n\n QTAILQ_REMOVE(&drives, dinfo, next);\n\n qemu_free(dinfo);\n\n return NULL;\n\n}\n", + "output": "0", + "index": 6038 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int vc1_decode_p_mb_intfr(VC1Context *v)\n\n{\n\n MpegEncContext *s = &v->s;\n\n GetBitContext *gb = &s->gb;\n\n int i;\n\n int mb_pos = s->mb_x + s->mb_y * s->mb_stride;\n\n int cbp = 0; /* cbp decoding stuff */\n\n int mqdiff, mquant; /* MB quantization */\n\n int ttmb = v->ttfrm; /* MB Transform type */\n\n\n\n int mb_has_coeffs = 1; /* last_flag */\n\n int dmv_x, dmv_y; /* Differential MV components */\n\n int val; /* temp value */\n\n int first_block = 1;\n\n int dst_idx, off;\n\n int skipped, fourmv = 0, twomv = 0;\n\n int block_cbp = 0, pat, block_tt = 0;\n\n int idx_mbmode = 0, mvbp;\n\n int stride_y, fieldtx;\n\n\n\n mquant = v->pq; /* Lossy initialization */\n\n\n\n if (v->skip_is_raw)\n\n skipped = get_bits1(gb);\n\n else\n\n skipped = v->s.mbskip_table[mb_pos];\n\n if (!skipped) {\n\n if (v->fourmvswitch)\n\n idx_mbmode = get_vlc2(gb, v->mbmode_vlc->table, VC1_INTFR_4MV_MBMODE_VLC_BITS, 2); // try getting this done\n\n else\n\n idx_mbmode = get_vlc2(gb, v->mbmode_vlc->table, VC1_INTFR_NON4MV_MBMODE_VLC_BITS, 2); // in a single line\n\n switch (ff_vc1_mbmode_intfrp[v->fourmvswitch][idx_mbmode][0]) {\n\n /* store the motion vector type in a flag (useful later) */\n\n case MV_PMODE_INTFR_4MV:\n\n fourmv = 1;\n\n v->blk_mv_type[s->block_index[0]] = 0;\n\n v->blk_mv_type[s->block_index[1]] = 0;\n\n v->blk_mv_type[s->block_index[2]] = 0;\n\n v->blk_mv_type[s->block_index[3]] = 0;\n\n break;\n\n case MV_PMODE_INTFR_4MV_FIELD:\n\n fourmv = 1;\n\n v->blk_mv_type[s->block_index[0]] = 1;\n\n v->blk_mv_type[s->block_index[1]] = 1;\n\n v->blk_mv_type[s->block_index[2]] = 1;\n\n v->blk_mv_type[s->block_index[3]] = 1;\n\n break;\n\n case MV_PMODE_INTFR_2MV_FIELD:\n\n twomv = 1;\n\n v->blk_mv_type[s->block_index[0]] = 1;\n\n v->blk_mv_type[s->block_index[1]] = 1;\n\n v->blk_mv_type[s->block_index[2]] = 1;\n\n v->blk_mv_type[s->block_index[3]] = 1;\n\n break;\n\n case MV_PMODE_INTFR_1MV:\n\n v->blk_mv_type[s->block_index[0]] = 0;\n\n v->blk_mv_type[s->block_index[1]] = 0;\n\n v->blk_mv_type[s->block_index[2]] = 0;\n\n v->blk_mv_type[s->block_index[3]] = 0;\n\n break;\n\n }\n\n if (ff_vc1_mbmode_intfrp[v->fourmvswitch][idx_mbmode][0] == MV_PMODE_INTFR_INTRA) { // intra MB\n\n for (i = 0; i < 4; i++) {\n\n s->current_picture.motion_val[1][s->block_index[i]][0] = 0;\n\n s->current_picture.motion_val[1][s->block_index[i]][1] = 0;\n\n }\n\n v->is_intra[s->mb_x] = 0x3f; // Set the bitfield to all 1.\n\n s->mb_intra = 1;\n\n s->current_picture.mb_type[mb_pos] = MB_TYPE_INTRA;\n\n fieldtx = v->fieldtx_plane[mb_pos] = get_bits1(gb);\n\n mb_has_coeffs = get_bits1(gb);\n\n if (mb_has_coeffs)\n\n cbp = 1 + get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2);\n\n v->s.ac_pred = v->acpred_plane[mb_pos] = get_bits1(gb);\n\n GET_MQUANT();\n\n s->current_picture.qscale_table[mb_pos] = mquant;\n\n /* Set DC scale - y and c use the same (not sure if necessary here) */\n\n s->y_dc_scale = s->y_dc_scale_table[mquant];\n\n s->c_dc_scale = s->c_dc_scale_table[mquant];\n\n dst_idx = 0;\n\n for (i = 0; i < 6; i++) {\n\n v->a_avail = v->c_avail = 0;\n\n v->mb_type[0][s->block_index[i]] = 1;\n\n s->dc_val[0][s->block_index[i]] = 0;\n\n dst_idx += i >> 2;\n\n val = ((cbp >> (5 - i)) & 1);\n\n if (i == 2 || i == 3 || !s->first_slice_line)\n\n v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]];\n\n if (i == 1 || i == 3 || s->mb_x)\n\n v->c_avail = v->mb_type[0][s->block_index[i] - 1];\n\n\n\n vc1_decode_intra_block(v, s->block[i], i, val, mquant,\n\n (i & 4) ? v->codingset2 : v->codingset);\n\n if ((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue;\n\n v->vc1dsp.vc1_inv_trans_8x8(s->block[i]);\n\n if (i < 4) {\n\n stride_y = s->linesize << fieldtx;\n\n off = (fieldtx) ? ((i & 1) * 8) + ((i & 2) >> 1) * s->linesize : (i & 1) * 8 + 4 * (i & 2) * s->linesize;\n\n } else {\n\n stride_y = s->uvlinesize;\n\n off = 0;\n\n }\n\n s->idsp.put_signed_pixels_clamped(s->block[i],\n\n s->dest[dst_idx] + off,\n\n stride_y);\n\n //TODO: loop filter\n\n }\n\n\n\n } else { // inter MB\n\n mb_has_coeffs = ff_vc1_mbmode_intfrp[v->fourmvswitch][idx_mbmode][3];\n\n if (mb_has_coeffs)\n\n cbp = 1 + get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2);\n\n if (ff_vc1_mbmode_intfrp[v->fourmvswitch][idx_mbmode][0] == MV_PMODE_INTFR_2MV_FIELD) {\n\n v->twomvbp = get_vlc2(gb, v->twomvbp_vlc->table, VC1_2MV_BLOCK_PATTERN_VLC_BITS, 1);\n\n } else {\n\n if ((ff_vc1_mbmode_intfrp[v->fourmvswitch][idx_mbmode][0] == MV_PMODE_INTFR_4MV)\n\n || (ff_vc1_mbmode_intfrp[v->fourmvswitch][idx_mbmode][0] == MV_PMODE_INTFR_4MV_FIELD)) {\n\n v->fourmvbp = get_vlc2(gb, v->fourmvbp_vlc->table, VC1_4MV_BLOCK_PATTERN_VLC_BITS, 1);\n\n }\n\n }\n\n s->mb_intra = v->is_intra[s->mb_x] = 0;\n\n for (i = 0; i < 6; i++)\n\n v->mb_type[0][s->block_index[i]] = 0;\n\n fieldtx = v->fieldtx_plane[mb_pos] = ff_vc1_mbmode_intfrp[v->fourmvswitch][idx_mbmode][1];\n\n /* for all motion vector read MVDATA and motion compensate each block */\n\n dst_idx = 0;\n\n if (fourmv) {\n\n mvbp = v->fourmvbp;\n\n for (i = 0; i < 6; i++) {\n\n if (i < 4) {\n\n dmv_x = dmv_y = 0;\n\n val = ((mvbp >> (3 - i)) & 1);\n\n if (val) {\n\n get_mvdata_interlaced(v, &dmv_x, &dmv_y, 0);\n\n }\n\n ff_vc1_pred_mv_intfr(v, i, dmv_x, dmv_y, 0, v->range_x, v->range_y, v->mb_type[0], 0);\n\n ff_vc1_mc_4mv_luma(v, i, 0, 0);\n\n } else if (i == 4) {\n\n ff_vc1_mc_4mv_chroma4(v, 0, 0, 0);\n\n }\n\n }\n\n } else if (twomv) {\n\n mvbp = v->twomvbp;\n\n dmv_x = dmv_y = 0;\n\n if (mvbp & 2) {\n\n get_mvdata_interlaced(v, &dmv_x, &dmv_y, 0);\n\n }\n\n ff_vc1_pred_mv_intfr(v, 0, dmv_x, dmv_y, 2, v->range_x, v->range_y, v->mb_type[0], 0);\n\n ff_vc1_mc_4mv_luma(v, 0, 0, 0);\n\n ff_vc1_mc_4mv_luma(v, 1, 0, 0);\n\n dmv_x = dmv_y = 0;\n\n if (mvbp & 1) {\n\n get_mvdata_interlaced(v, &dmv_x, &dmv_y, 0);\n\n }\n\n ff_vc1_pred_mv_intfr(v, 2, dmv_x, dmv_y, 2, v->range_x, v->range_y, v->mb_type[0], 0);\n\n ff_vc1_mc_4mv_luma(v, 2, 0, 0);\n\n ff_vc1_mc_4mv_luma(v, 3, 0, 0);\n\n ff_vc1_mc_4mv_chroma4(v, 0, 0, 0);\n\n } else {\n\n mvbp = ff_vc1_mbmode_intfrp[v->fourmvswitch][idx_mbmode][2];\n\n dmv_x = dmv_y = 0;\n\n if (mvbp) {\n\n get_mvdata_interlaced(v, &dmv_x, &dmv_y, 0);\n\n }\n\n ff_vc1_pred_mv_intfr(v, 0, dmv_x, dmv_y, 1, v->range_x, v->range_y, v->mb_type[0], 0);\n\n ff_vc1_mc_1mv(v, 0);\n\n }\n\n if (cbp)\n\n GET_MQUANT(); // p. 227\n\n s->current_picture.qscale_table[mb_pos] = mquant;\n\n if (!v->ttmbf && cbp)\n\n ttmb = get_vlc2(gb, ff_vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2);\n\n for (i = 0; i < 6; i++) {\n\n s->dc_val[0][s->block_index[i]] = 0;\n\n dst_idx += i >> 2;\n\n val = ((cbp >> (5 - i)) & 1);\n\n if (!fieldtx)\n\n off = (i & 4) ? 0 : ((i & 1) * 8 + (i & 2) * 4 * s->linesize);\n\n else\n\n off = (i & 4) ? 0 : ((i & 1) * 8 + ((i > 1) * s->linesize));\n\n if (val) {\n\n pat = vc1_decode_p_block(v, s->block[i], i, mquant, ttmb,\n\n first_block, s->dest[dst_idx] + off,\n\n (i & 4) ? s->uvlinesize : (s->linesize << fieldtx),\n\n (i & 4) && (s->flags & CODEC_FLAG_GRAY), &block_tt);\n\n block_cbp |= pat << (i << 2);\n\n if (!v->ttmbf && ttmb < 8)\n\n ttmb = -1;\n\n first_block = 0;\n\n }\n\n }\n\n }\n\n } else { // skipped\n\n s->mb_intra = v->is_intra[s->mb_x] = 0;\n\n for (i = 0; i < 6; i++) {\n\n v->mb_type[0][s->block_index[i]] = 0;\n\n s->dc_val[0][s->block_index[i]] = 0;\n\n }\n\n s->current_picture.mb_type[mb_pos] = MB_TYPE_SKIP;\n\n s->current_picture.qscale_table[mb_pos] = 0;\n\n v->blk_mv_type[s->block_index[0]] = 0;\n\n v->blk_mv_type[s->block_index[1]] = 0;\n\n v->blk_mv_type[s->block_index[2]] = 0;\n\n v->blk_mv_type[s->block_index[3]] = 0;\n\n ff_vc1_pred_mv_intfr(v, 0, 0, 0, 1, v->range_x, v->range_y, v->mb_type[0], 0);\n\n ff_vc1_mc_1mv(v, 0);\n\n }\n\n if (s->mb_x == s->mb_width - 1)\n\n memmove(v->is_intra_base, v->is_intra, sizeof(v->is_intra_base[0])*s->mb_stride);\n\n return 0;\n\n}\n", + "output": "0", + "index": 7912 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int decode_subpacket(COOKContext *q, uint8_t *inbuffer,\n\n int sub_packet_size, int16_t *outbuffer) {\n\n int i,j;\n\n int value;\n\n float* tmp_ptr;\n\n\n\n /* packet dump */\n\n// for (i=0 ; idecoded_bytes_buffer, sub_packet_size);\n\n init_get_bits(&q->gb, q->decoded_bytes_buffer, sub_packet_size*8);\n\n decode_gain_info(&q->gb, &q->gain_current);\n\n memcpy(&q->gain_copy, &q->gain_current ,sizeof(COOKgain)); //This copy does not seem to be used. FIXME\n\n\n\n if(q->nb_channels==2 && q->joint_stereo==1){\n\n joint_decode(q, q->decode_buf_ptr[0], q->decode_buf_ptr[2]);\n\n\n\n /* Swap buffer pointers. */\n\n tmp_ptr = q->decode_buf_ptr[1];\n\n q->decode_buf_ptr[1] = q->decode_buf_ptr[0];\n\n q->decode_buf_ptr[0] = tmp_ptr;\n\n tmp_ptr = q->decode_buf_ptr[3];\n\n q->decode_buf_ptr[3] = q->decode_buf_ptr[2];\n\n q->decode_buf_ptr[2] = tmp_ptr;\n\n\n\n /* FIXME: Rethink the gainbuffer handling, maybe a rename?\n\n now/previous swap */\n\n q->gain_now_ptr = &q->gain_now;\n\n q->gain_previous_ptr = &q->gain_previous;\n\n for (i=0 ; inb_channels ; i++){\n\n\n\n cook_imlt(q, q->decode_buf_ptr[i*2], q->mono_mdct_output, q->mlt_tmp);\n\n gain_compensate(q, q->mono_mdct_output, q->gain_now_ptr,\n\n q->gain_previous_ptr, q->previous_buffer_ptr[0]);\n\n\n\n /* Swap out the previous buffer. */\n\n tmp_ptr = q->previous_buffer_ptr[0];\n\n q->previous_buffer_ptr[0] = q->previous_buffer_ptr[1];\n\n q->previous_buffer_ptr[1] = tmp_ptr;\n\n\n\n /* Clip and convert the floats to 16 bits. */\n\n for (j=0 ; jsamples_per_frame ; j++){\n\n value = lrintf(q->mono_mdct_output[j]);\n\n if(value < -32768) value = -32768;\n\n else if(value > 32767) value = 32767;\n\n outbuffer[2*j+i] = value;\n\n }\n\n }\n\n\n\n memcpy(&q->gain_now, &q->gain_previous, sizeof(COOKgain));\n\n memcpy(&q->gain_previous, &q->gain_current, sizeof(COOKgain));\n\n\n\n } else if (q->nb_channels==2 && q->joint_stereo==0) {\n\n /* channel 0 */\n\n mono_decode(q, q->decode_buf_ptr[0]);\n\n\n\n tmp_ptr = q->decode_buf_ptr[0];\n\n q->decode_buf_ptr[0] = q->decode_buf_ptr[1];\n\n q->decode_buf_ptr[1] = q->decode_buf_ptr[2];\n\n q->decode_buf_ptr[2] = q->decode_buf_ptr[3];\n\n q->decode_buf_ptr[3] = tmp_ptr;\n\n\n\n q->gain_now_ptr = &q->gain_now;\n\n q->gain_previous_ptr = &q->gain_previous;\n\n\n\n cook_imlt(q, q->decode_buf_ptr[0], q->mono_mdct_output,q->mlt_tmp);\n\n gain_compensate(q, q->mono_mdct_output, q->gain_now_ptr,\n\n q->gain_previous_ptr, q->previous_buffer_ptr[0]);\n\n /* Swap out the previous buffer. */\n\n tmp_ptr = q->previous_buffer_ptr[0];\n\n q->previous_buffer_ptr[0] = q->previous_buffer_ptr[1];\n\n q->previous_buffer_ptr[1] = tmp_ptr;\n\n\n\n for (j=0 ; jsamples_per_frame ; j++){\n\n value = lrintf(q->mono_mdct_output[j]);\n\n if(value < -32768) value = -32768;\n\n else if(value > 32767) value = 32767;\n\n outbuffer[2*j+1] = value;\n\n }\n\n\n\n /* channel 1 */\n\n //av_log(NULL,AV_LOG_ERROR,\"bits = %d\\n\",get_bits_count(&q->gb));\n\n init_get_bits(&q->gb, q->decoded_bytes_buffer, sub_packet_size*8+q->bits_per_subpacket);\n\n decode_gain_info(&q->gb, &q->gain_current);\n\n //memcpy(&q->gain_copy, &q->gain_current ,sizeof(COOKgain));\n\n mono_decode(q, q->decode_buf_ptr[0]);\n\n tmp_ptr = q->decode_buf_ptr[0];\n\n q->decode_buf_ptr[1] = q->decode_buf_ptr[2];\n\n q->decode_buf_ptr[2] = q->decode_buf_ptr[3];\n\n q->decode_buf_ptr[3] = tmp_ptr;\n\n\n\n q->gain_now_ptr = &q->gain_now;\n\n q->gain_previous_ptr = &q->gain_previous;\n\n\n\n cook_imlt(q, q->decode_buf_ptr[0], q->mono_mdct_output,q->mlt_tmp);\n\n gain_compensate(q, q->mono_mdct_output, q->gain_now_ptr, q->gain_previous_ptr, q->previous_buffer_ptr[0]);\n\n\n\n /* Swap out the previous buffer. */\n\n tmp_ptr = q->previous_buffer_ptr[0];\n\n q->previous_buffer_ptr[0] = q->previous_buffer_ptr[1];\n\n q->previous_buffer_ptr[1] = tmp_ptr;\n\n\n\n for (j=0 ; jsamples_per_frame ; j++){\n\n value = lrintf(q->mono_mdct_output[j]);\n\n if(value < -32768) value = -32768;\n\n else if(value > 32767) value = 32767;\n\n outbuffer[2*j] = value;\n\n }\n\n\n\n\n\n /* Swap out the previous buffer. */\n\n memcpy(&q->gain_now, &q->gain_previous, sizeof(COOKgain));\n\n memcpy(&q->gain_previous, &q->gain_current, sizeof(COOKgain));\n\n\n\n } else {\n\n mono_decode(q, q->decode_buf_ptr[0]);\n\n\n\n /* Swap buffer pointers. */\n\n tmp_ptr = q->decode_buf_ptr[1];\n\n q->decode_buf_ptr[1] = q->decode_buf_ptr[0];\n\n q->decode_buf_ptr[0] = tmp_ptr;\n\n\n\n /* FIXME: Rethink the gainbuffer handling, maybe a rename?\n\n now/previous swap */\n\n q->gain_now_ptr = &q->gain_now;\n\n q->gain_previous_ptr = &q->gain_previous;\n\n\n\n cook_imlt(q, q->decode_buf_ptr[0], q->mono_mdct_output,q->mlt_tmp);\n\n gain_compensate(q, q->mono_mdct_output, q->gain_now_ptr,\n\n q->gain_previous_ptr, q->mono_previous_buffer1);\n\n\n\n /* Clip and convert the floats to 16 bits */\n\n for (j=0 ; jsamples_per_frame ; j++){\n\n value = lrintf(q->mono_mdct_output[j]);\n\n if(value < -32768) value = -32768;\n\n else if(value > 32767) value = 32767;\n\n outbuffer[j] = value;\n\n }\n\n memcpy(&q->gain_now, &q->gain_previous, sizeof(COOKgain));\n\n memcpy(&q->gain_previous, &q->gain_current, sizeof(COOKgain));\n\n }\n\n return q->samples_per_frame * sizeof(int16_t);\n\n}\n", + "output": "1", + "index": 20014 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int adpcm_decode_frame(AVCodecContext *avctx,\n\n void *data, int *data_size,\n\n AVPacket *avpkt)\n\n{\n\n const uint8_t *buf = avpkt->data;\n\n int buf_size = avpkt->size;\n\n ADPCMDecodeContext *c = avctx->priv_data;\n\n ADPCMChannelStatus *cs;\n\n int n, m, channel, i;\n\n int block_predictor[2];\n\n short *samples;\n\n short *samples_end;\n\n const uint8_t *src;\n\n int st; /* stereo */\n\n\n\n /* DK3 ADPCM accounting variables */\n\n unsigned char last_byte = 0;\n\n unsigned char nibble;\n\n int decode_top_nibble_next = 0;\n\n int diff_channel;\n\n\n\n /* EA ADPCM state variables */\n\n uint32_t samples_in_chunk;\n\n int32_t previous_left_sample, previous_right_sample;\n\n int32_t current_left_sample, current_right_sample;\n\n int32_t next_left_sample, next_right_sample;\n\n int32_t coeff1l, coeff2l, coeff1r, coeff2r;\n\n uint8_t shift_left, shift_right;\n\n int count1, count2;\n\n int coeff[2][2], shift[2];//used in EA MAXIS ADPCM\n\n\n\n if (!buf_size)\n\n return 0;\n\n\n\n //should protect all 4bit ADPCM variants\n\n //8 is needed for CODEC_ID_ADPCM_IMA_WAV with 2 channels\n\n //\n\n if(*data_size/4 < buf_size + 8)\n\n return -1;\n\n\n\n samples = data;\n\n samples_end= samples + *data_size/2;\n\n *data_size= 0;\n\n src = buf;\n\n\n\n st = avctx->channels == 2 ? 1 : 0;\n\n\n\n switch(avctx->codec->id) {\n\n case CODEC_ID_ADPCM_IMA_QT:\n\n n = buf_size - 2*avctx->channels;\n\n for (channel = 0; channel < avctx->channels; channel++) {\n\n int16_t predictor;\n\n int step_index;\n\n cs = &(c->status[channel]);\n\n /* (pppppp) (piiiiiii) */\n\n\n\n /* Bits 15-7 are the _top_ 9 bits of the 16-bit initial predictor value */\n\n predictor = AV_RB16(src);\n\n step_index = predictor & 0x7F;\n\n predictor &= 0xFF80;\n\n\n\n src += 2;\n\n\n\n if (cs->step_index == step_index) {\n\n int diff = (int)predictor - cs->predictor;\n\n if (diff < 0)\n\n diff = - diff;\n\n if (diff > 0x7f)\n\n goto update;\n\n } else {\n\n update:\n\n cs->step_index = step_index;\n\n cs->predictor = predictor;\n\n }\n\n\n\n if (cs->step_index > 88){\n\n av_log(avctx, AV_LOG_ERROR, \"ERROR: step_index = %i\\n\", cs->step_index);\n\n cs->step_index = 88;\n\n }\n\n\n\n samples = (short*)data + channel;\n\n\n\n for(m=32; n>0 && m>0; n--, m--) { /* in QuickTime, IMA is encoded by chuncks of 34 bytes (=64 samples) */\n\n *samples = adpcm_ima_qt_expand_nibble(cs, src[0] & 0x0F, 3);\n\n samples += avctx->channels;\n\n *samples = adpcm_ima_qt_expand_nibble(cs, src[0] >> 4 , 3);\n\n samples += avctx->channels;\n\n src ++;\n\n }\n\n }\n\n if (st)\n\n samples--;\n\n break;\n\n case CODEC_ID_ADPCM_IMA_WAV:\n\n if (avctx->block_align != 0 && buf_size > avctx->block_align)\n\n buf_size = avctx->block_align;\n\n\n\n// samples_per_block= (block_align-4*chanels)*8 / (bits_per_sample * chanels) + 1;\n\n\n\n for(i=0; ichannels; i++){\n\n cs = &(c->status[i]);\n\n cs->predictor = *samples++ = (int16_t)bytestream_get_le16(&src);\n\n\n\n cs->step_index = *src++;\n\n if (cs->step_index > 88){\n\n av_log(avctx, AV_LOG_ERROR, \"ERROR: step_index = %i\\n\", cs->step_index);\n\n cs->step_index = 88;\n\n }\n\n if (*src++) av_log(avctx, AV_LOG_ERROR, \"unused byte should be null but is %d!!\\n\", src[-1]); /* unused */\n\n }\n\n\n\n while(src < buf + buf_size){\n\n for(m=0; m<4; m++){\n\n for(i=0; i<=st; i++)\n\n *samples++ = adpcm_ima_expand_nibble(&c->status[i], src[4*i] & 0x0F, 3);\n\n for(i=0; i<=st; i++)\n\n *samples++ = adpcm_ima_expand_nibble(&c->status[i], src[4*i] >> 4 , 3);\n\n src++;\n\n }\n\n src += 4*st;\n\n }\n\n break;\n\n case CODEC_ID_ADPCM_4XM:\n\n cs = &(c->status[0]);\n\n c->status[0].predictor= (int16_t)bytestream_get_le16(&src);\n\n if(st){\n\n c->status[1].predictor= (int16_t)bytestream_get_le16(&src);\n\n }\n\n c->status[0].step_index= (int16_t)bytestream_get_le16(&src);\n\n if(st){\n\n c->status[1].step_index= (int16_t)bytestream_get_le16(&src);\n\n }\n\n if (cs->step_index < 0) cs->step_index = 0;\n\n if (cs->step_index > 88) cs->step_index = 88;\n\n\n\n m= (buf_size - (src - buf))>>st;\n\n for(i=0; istatus[0], src[i] & 0x0F, 4);\n\n if (st)\n\n *samples++ = adpcm_ima_expand_nibble(&c->status[1], src[i+m] & 0x0F, 4);\n\n *samples++ = adpcm_ima_expand_nibble(&c->status[0], src[i] >> 4, 4);\n\n if (st)\n\n *samples++ = adpcm_ima_expand_nibble(&c->status[1], src[i+m] >> 4, 4);\n\n }\n\n\n\n src += m<block_align != 0 && buf_size > avctx->block_align)\n\n buf_size = avctx->block_align;\n\n n = buf_size - 7 * avctx->channels;\n\n if (n < 0)\n\n return -1;\n\n block_predictor[0] = av_clip(*src++, 0, 6);\n\n block_predictor[1] = 0;\n\n if (st)\n\n block_predictor[1] = av_clip(*src++, 0, 6);\n\n c->status[0].idelta = (int16_t)bytestream_get_le16(&src);\n\n if (st){\n\n c->status[1].idelta = (int16_t)bytestream_get_le16(&src);\n\n }\n\n c->status[0].coeff1 = ff_adpcm_AdaptCoeff1[block_predictor[0]];\n\n c->status[0].coeff2 = ff_adpcm_AdaptCoeff2[block_predictor[0]];\n\n c->status[1].coeff1 = ff_adpcm_AdaptCoeff1[block_predictor[1]];\n\n c->status[1].coeff2 = ff_adpcm_AdaptCoeff2[block_predictor[1]];\n\n\n\n c->status[0].sample1 = bytestream_get_le16(&src);\n\n if (st) c->status[1].sample1 = bytestream_get_le16(&src);\n\n c->status[0].sample2 = bytestream_get_le16(&src);\n\n if (st) c->status[1].sample2 = bytestream_get_le16(&src);\n\n\n\n *samples++ = c->status[0].sample2;\n\n if (st) *samples++ = c->status[1].sample2;\n\n *samples++ = c->status[0].sample1;\n\n if (st) *samples++ = c->status[1].sample1;\n\n for(;n>0;n--) {\n\n *samples++ = adpcm_ms_expand_nibble(&c->status[0 ], src[0] >> 4 );\n\n *samples++ = adpcm_ms_expand_nibble(&c->status[st], src[0] & 0x0F);\n\n src ++;\n\n }\n\n break;\n\n case CODEC_ID_ADPCM_IMA_DK4:\n\n if (avctx->block_align != 0 && buf_size > avctx->block_align)\n\n buf_size = avctx->block_align;\n\n\n\n c->status[0].predictor = (int16_t)bytestream_get_le16(&src);\n\n c->status[0].step_index = *src++;\n\n src++;\n\n *samples++ = c->status[0].predictor;\n\n if (st) {\n\n c->status[1].predictor = (int16_t)bytestream_get_le16(&src);\n\n c->status[1].step_index = *src++;\n\n src++;\n\n *samples++ = c->status[1].predictor;\n\n }\n\n while (src < buf + buf_size) {\n\n\n\n /* take care of the top nibble (always left or mono channel) */\n\n *samples++ = adpcm_ima_expand_nibble(&c->status[0],\n\n src[0] >> 4, 3);\n\n\n\n /* take care of the bottom nibble, which is right sample for\n\n * stereo, or another mono sample */\n\n if (st)\n\n *samples++ = adpcm_ima_expand_nibble(&c->status[1],\n\n src[0] & 0x0F, 3);\n\n else\n\n *samples++ = adpcm_ima_expand_nibble(&c->status[0],\n\n src[0] & 0x0F, 3);\n\n\n\n src++;\n\n }\n\n break;\n\n case CODEC_ID_ADPCM_IMA_DK3:\n\n if (avctx->block_align != 0 && buf_size > avctx->block_align)\n\n buf_size = avctx->block_align;\n\n\n\n if(buf_size + 16 > (samples_end - samples)*3/8)\n\n return -1;\n\n\n\n c->status[0].predictor = (int16_t)AV_RL16(src + 10);\n\n c->status[1].predictor = (int16_t)AV_RL16(src + 12);\n\n c->status[0].step_index = src[14];\n\n c->status[1].step_index = src[15];\n\n /* sign extend the predictors */\n\n src += 16;\n\n diff_channel = c->status[1].predictor;\n\n\n\n /* the DK3_GET_NEXT_NIBBLE macro issues the break statement when\n\n * the buffer is consumed */\n\n while (1) {\n\n\n\n /* for this algorithm, c->status[0] is the sum channel and\n\n * c->status[1] is the diff channel */\n\n\n\n /* process the first predictor of the sum channel */\n\n DK3_GET_NEXT_NIBBLE();\n\n adpcm_ima_expand_nibble(&c->status[0], nibble, 3);\n\n\n\n /* process the diff channel predictor */\n\n DK3_GET_NEXT_NIBBLE();\n\n adpcm_ima_expand_nibble(&c->status[1], nibble, 3);\n\n\n\n /* process the first pair of stereo PCM samples */\n\n diff_channel = (diff_channel + c->status[1].predictor) / 2;\n\n *samples++ = c->status[0].predictor + c->status[1].predictor;\n\n *samples++ = c->status[0].predictor - c->status[1].predictor;\n\n\n\n /* process the second predictor of the sum channel */\n\n DK3_GET_NEXT_NIBBLE();\n\n adpcm_ima_expand_nibble(&c->status[0], nibble, 3);\n\n\n\n /* process the second pair of stereo PCM samples */\n\n diff_channel = (diff_channel + c->status[1].predictor) / 2;\n\n *samples++ = c->status[0].predictor + c->status[1].predictor;\n\n *samples++ = c->status[0].predictor - c->status[1].predictor;\n\n }\n\n break;\n\n case CODEC_ID_ADPCM_IMA_ISS:\n\n c->status[0].predictor = (int16_t)AV_RL16(src + 0);\n\n c->status[0].step_index = src[2];\n\n src += 4;\n\n if(st) {\n\n c->status[1].predictor = (int16_t)AV_RL16(src + 0);\n\n c->status[1].step_index = src[2];\n\n src += 4;\n\n }\n\n\n\n while (src < buf + buf_size) {\n\n\n\n if (st) {\n\n *samples++ = adpcm_ima_expand_nibble(&c->status[0],\n\n src[0] >> 4 , 3);\n\n *samples++ = adpcm_ima_expand_nibble(&c->status[1],\n\n src[0] & 0x0F, 3);\n\n } else {\n\n *samples++ = adpcm_ima_expand_nibble(&c->status[0],\n\n src[0] & 0x0F, 3);\n\n *samples++ = adpcm_ima_expand_nibble(&c->status[0],\n\n src[0] >> 4 , 3);\n\n }\n\n\n\n src++;\n\n }\n\n break;\n\n case CODEC_ID_ADPCM_IMA_WS:\n\n /* no per-block initialization; just start decoding the data */\n\n while (src < buf + buf_size) {\n\n\n\n if (st) {\n\n *samples++ = adpcm_ima_expand_nibble(&c->status[0],\n\n src[0] >> 4 , 3);\n\n *samples++ = adpcm_ima_expand_nibble(&c->status[1],\n\n src[0] & 0x0F, 3);\n\n } else {\n\n *samples++ = adpcm_ima_expand_nibble(&c->status[0],\n\n src[0] >> 4 , 3);\n\n *samples++ = adpcm_ima_expand_nibble(&c->status[0],\n\n src[0] & 0x0F, 3);\n\n }\n\n\n\n src++;\n\n }\n\n break;\n\n case CODEC_ID_ADPCM_XA:\n\n while (buf_size >= 128) {\n\n xa_decode(samples, src, &c->status[0], &c->status[1],\n\n avctx->channels);\n\n src += 128;\n\n samples += 28 * 8;\n\n buf_size -= 128;\n\n }\n\n break;\n\n case CODEC_ID_ADPCM_IMA_EA_EACS:\n\n samples_in_chunk = bytestream_get_le32(&src) >> (1-st);\n\n\n\n if (samples_in_chunk > buf_size-4-(8<status[i].step_index = bytestream_get_le32(&src);\n\n for (i=0; i<=st; i++)\n\n c->status[i].predictor = bytestream_get_le32(&src);\n\n\n\n for (; samples_in_chunk; samples_in_chunk--, src++) {\n\n *samples++ = adpcm_ima_expand_nibble(&c->status[0], *src>>4, 3);\n\n *samples++ = adpcm_ima_expand_nibble(&c->status[st], *src&0x0F, 3);\n\n }\n\n break;\n\n case CODEC_ID_ADPCM_IMA_EA_SEAD:\n\n for (; src < buf+buf_size; src++) {\n\n *samples++ = adpcm_ima_expand_nibble(&c->status[0], src[0] >> 4, 6);\n\n *samples++ = adpcm_ima_expand_nibble(&c->status[st],src[0]&0x0F, 6);\n\n }\n\n break;\n\n case CODEC_ID_ADPCM_EA:\n\n /* Each EA ADPCM frame has a 12-byte header followed by 30-byte pieces,\n\n each coding 28 stereo samples. */\n\n if (buf_size < 12) {\n\n av_log(avctx, AV_LOG_ERROR, \"frame too small\\n\");\n\n return AVERROR(EINVAL);\n\n }\n\n samples_in_chunk = AV_RL32(src);\n\n if (samples_in_chunk / 28 > (buf_size - 12) / 30) {\n\n av_log(avctx, AV_LOG_ERROR, \"invalid frame\\n\");\n\n return AVERROR(EINVAL);\n\n }\n\n src += 4;\n\n current_left_sample = (int16_t)bytestream_get_le16(&src);\n\n previous_left_sample = (int16_t)bytestream_get_le16(&src);\n\n current_right_sample = (int16_t)bytestream_get_le16(&src);\n\n previous_right_sample = (int16_t)bytestream_get_le16(&src);\n\n\n\n for (count1 = 0; count1 < samples_in_chunk/28;count1++) {\n\n coeff1l = ea_adpcm_table[ *src >> 4 ];\n\n coeff2l = ea_adpcm_table[(*src >> 4 ) + 4];\n\n coeff1r = ea_adpcm_table[*src & 0x0F];\n\n coeff2r = ea_adpcm_table[(*src & 0x0F) + 4];\n\n src++;\n\n\n\n shift_left = (*src >> 4 ) + 8;\n\n shift_right = (*src & 0x0F) + 8;\n\n src++;\n\n\n\n for (count2 = 0; count2 < 28; count2++) {\n\n next_left_sample = (int32_t)((*src & 0xF0) << 24) >> shift_left;\n\n next_right_sample = (int32_t)((*src & 0x0F) << 28) >> shift_right;\n\n src++;\n\n\n\n next_left_sample = (next_left_sample +\n\n (current_left_sample * coeff1l) +\n\n (previous_left_sample * coeff2l) + 0x80) >> 8;\n\n next_right_sample = (next_right_sample +\n\n (current_right_sample * coeff1r) +\n\n (previous_right_sample * coeff2r) + 0x80) >> 8;\n\n\n\n previous_left_sample = current_left_sample;\n\n current_left_sample = av_clip_int16(next_left_sample);\n\n previous_right_sample = current_right_sample;\n\n current_right_sample = av_clip_int16(next_right_sample);\n\n *samples++ = (unsigned short)current_left_sample;\n\n *samples++ = (unsigned short)current_right_sample;\n\n }\n\n }\n\n\n\n if (src - buf == buf_size - 2)\n\n src += 2; // Skip terminating 0x0000\n\n\n\n break;\n\n case CODEC_ID_ADPCM_EA_MAXIS_XA:\n\n for(channel = 0; channel < avctx->channels; channel++) {\n\n for (i=0; i<2; i++)\n\n coeff[channel][i] = ea_adpcm_table[(*src >> 4) + 4*i];\n\n shift[channel] = (*src & 0x0F) + 8;\n\n src++;\n\n }\n\n for (count1 = 0; count1 < (buf_size - avctx->channels) / avctx->channels; count1++) {\n\n for(i = 4; i >= 0; i-=4) { /* Pairwise samples LL RR (st) or LL LL (mono) */\n\n for(channel = 0; channel < avctx->channels; channel++) {\n\n int32_t sample = (int32_t)(((*(src+channel) >> i) & 0x0F) << 0x1C) >> shift[channel];\n\n sample = (sample +\n\n c->status[channel].sample1 * coeff[channel][0] +\n\n c->status[channel].sample2 * coeff[channel][1] + 0x80) >> 8;\n\n c->status[channel].sample2 = c->status[channel].sample1;\n\n c->status[channel].sample1 = av_clip_int16(sample);\n\n *samples++ = c->status[channel].sample1;\n\n }\n\n }\n\n src+=avctx->channels;\n\n }\n\n break;\n\n case CODEC_ID_ADPCM_EA_R1:\n\n case CODEC_ID_ADPCM_EA_R2:\n\n case CODEC_ID_ADPCM_EA_R3: {\n\n /* channel numbering\n\n 2chan: 0=fl, 1=fr\n\n 4chan: 0=fl, 1=rl, 2=fr, 3=rr\n\n 6chan: 0=fl, 1=c, 2=fr, 3=rl, 4=rr, 5=sub */\n\n const int big_endian = avctx->codec->id == CODEC_ID_ADPCM_EA_R3;\n\n int32_t previous_sample, current_sample, next_sample;\n\n int32_t coeff1, coeff2;\n\n uint8_t shift;\n\n unsigned int channel;\n\n uint16_t *samplesC;\n\n const uint8_t *srcC;\n\n const uint8_t *src_end = buf + buf_size;\n\n\n\n samples_in_chunk = (big_endian ? bytestream_get_be32(&src)\n\n : bytestream_get_le32(&src)) / 28;\n\n if (samples_in_chunk > UINT32_MAX/(28*avctx->channels) ||\n\n 28*samples_in_chunk*avctx->channels > samples_end-samples) {\n\n src += buf_size - 4;\n\n break;\n\n }\n\n\n\n for (channel=0; channelchannels; channel++) {\n\n int32_t offset = (big_endian ? bytestream_get_be32(&src)\n\n : bytestream_get_le32(&src))\n\n + (avctx->channels-channel-1) * 4;\n\n\n\n if ((offset < 0) || (offset >= src_end - src - 4)) break;\n\n srcC = src + offset;\n\n samplesC = samples + channel;\n\n\n\n if (avctx->codec->id == CODEC_ID_ADPCM_EA_R1) {\n\n current_sample = (int16_t)bytestream_get_le16(&srcC);\n\n previous_sample = (int16_t)bytestream_get_le16(&srcC);\n\n } else {\n\n current_sample = c->status[channel].predictor;\n\n previous_sample = c->status[channel].prev_sample;\n\n }\n\n\n\n for (count1=0; count1 src_end - 30*2) break;\n\n current_sample = (int16_t)bytestream_get_be16(&srcC);\n\n previous_sample = (int16_t)bytestream_get_be16(&srcC);\n\n\n\n for (count2=0; count2<28; count2++) {\n\n *samplesC = (int16_t)bytestream_get_be16(&srcC);\n\n samplesC += avctx->channels;\n\n }\n\n } else {\n\n coeff1 = ea_adpcm_table[ *srcC>>4 ];\n\n coeff2 = ea_adpcm_table[(*srcC>>4) + 4];\n\n shift = (*srcC++ & 0x0F) + 8;\n\n\n\n if (srcC > src_end - 14) break;\n\n for (count2=0; count2<28; count2++) {\n\n if (count2 & 1)\n\n next_sample = (int32_t)((*srcC++ & 0x0F) << 28) >> shift;\n\n else\n\n next_sample = (int32_t)((*srcC & 0xF0) << 24) >> shift;\n\n\n\n next_sample += (current_sample * coeff1) +\n\n (previous_sample * coeff2);\n\n next_sample = av_clip_int16(next_sample >> 8);\n\n\n\n previous_sample = current_sample;\n\n current_sample = next_sample;\n\n *samplesC = current_sample;\n\n samplesC += avctx->channels;\n\n }\n\n }\n\n }\n\n\n\n if (avctx->codec->id != CODEC_ID_ADPCM_EA_R1) {\n\n c->status[channel].predictor = current_sample;\n\n c->status[channel].prev_sample = previous_sample;\n\n }\n\n }\n\n\n\n src = src + buf_size - (4 + 4*avctx->channels);\n\n samples += 28 * samples_in_chunk * avctx->channels;\n\n break;\n\n }\n\n case CODEC_ID_ADPCM_EA_XAS:\n\n if (samples_end-samples < 32*4*avctx->channels\n\n || buf_size < (4+15)*4*avctx->channels) {\n\n src += buf_size;\n\n break;\n\n }\n\n for (channel=0; channelchannels; channel++) {\n\n int coeff[2][4], shift[4];\n\n short *s2, *s = &samples[channel];\n\n for (n=0; n<4; n++, s+=32*avctx->channels) {\n\n for (i=0; i<2; i++)\n\n coeff[i][n] = ea_adpcm_table[(src[0]&0x0F)+4*i];\n\n shift[n] = (src[2]&0x0F) + 8;\n\n for (s2=s, i=0; i<2; i++, src+=2, s2+=avctx->channels)\n\n s2[0] = (src[0]&0xF0) + (src[1]<<8);\n\n }\n\n\n\n for (m=2; m<32; m+=2) {\n\n s = &samples[m*avctx->channels + channel];\n\n for (n=0; n<4; n++, src++, s+=32*avctx->channels) {\n\n for (s2=s, i=0; i<8; i+=4, s2+=avctx->channels) {\n\n int level = (int32_t)((*src & (0xF0>>i)) << (24+i)) >> shift[n];\n\n int pred = s2[-1*avctx->channels] * coeff[0][n]\n\n + s2[-2*avctx->channels] * coeff[1][n];\n\n s2[0] = av_clip_int16((level + pred + 0x80) >> 8);\n\n }\n\n }\n\n }\n\n }\n\n samples += 32*4*avctx->channels;\n\n break;\n\n case CODEC_ID_ADPCM_IMA_AMV:\n\n case CODEC_ID_ADPCM_IMA_SMJPEG:\n\n c->status[0].predictor = (int16_t)bytestream_get_le16(&src);\n\n c->status[0].step_index = bytestream_get_le16(&src);\n\n\n\n if (avctx->codec->id == CODEC_ID_ADPCM_IMA_AMV)\n\n src+=4;\n\n\n\n while (src < buf + buf_size) {\n\n char hi, lo;\n\n lo = *src & 0x0F;\n\n hi = *src >> 4;\n\n\n\n if (avctx->codec->id == CODEC_ID_ADPCM_IMA_AMV)\n\n FFSWAP(char, hi, lo);\n\n\n\n *samples++ = adpcm_ima_expand_nibble(&c->status[0],\n\n lo, 3);\n\n *samples++ = adpcm_ima_expand_nibble(&c->status[0],\n\n hi, 3);\n\n src++;\n\n }\n\n break;\n\n case CODEC_ID_ADPCM_CT:\n\n while (src < buf + buf_size) {\n\n if (st) {\n\n *samples++ = adpcm_ct_expand_nibble(&c->status[0],\n\n src[0] >> 4);\n\n *samples++ = adpcm_ct_expand_nibble(&c->status[1],\n\n src[0] & 0x0F);\n\n } else {\n\n *samples++ = adpcm_ct_expand_nibble(&c->status[0],\n\n src[0] >> 4);\n\n *samples++ = adpcm_ct_expand_nibble(&c->status[0],\n\n src[0] & 0x0F);\n\n }\n\n src++;\n\n }\n\n break;\n\n case CODEC_ID_ADPCM_SBPRO_4:\n\n case CODEC_ID_ADPCM_SBPRO_3:\n\n case CODEC_ID_ADPCM_SBPRO_2:\n\n if (!c->status[0].step_index) {\n\n /* the first byte is a raw sample */\n\n *samples++ = 128 * (*src++ - 0x80);\n\n if (st)\n\n *samples++ = 128 * (*src++ - 0x80);\n\n c->status[0].step_index = 1;\n\n }\n\n if (avctx->codec->id == CODEC_ID_ADPCM_SBPRO_4) {\n\n while (src < buf + buf_size) {\n\n *samples++ = adpcm_sbpro_expand_nibble(&c->status[0],\n\n src[0] >> 4, 4, 0);\n\n *samples++ = adpcm_sbpro_expand_nibble(&c->status[st],\n\n src[0] & 0x0F, 4, 0);\n\n src++;\n\n }\n\n } else if (avctx->codec->id == CODEC_ID_ADPCM_SBPRO_3) {\n\n while (src < buf + buf_size && samples + 2 < samples_end) {\n\n *samples++ = adpcm_sbpro_expand_nibble(&c->status[0],\n\n src[0] >> 5 , 3, 0);\n\n *samples++ = adpcm_sbpro_expand_nibble(&c->status[0],\n\n (src[0] >> 2) & 0x07, 3, 0);\n\n *samples++ = adpcm_sbpro_expand_nibble(&c->status[0],\n\n src[0] & 0x03, 2, 0);\n\n src++;\n\n }\n\n } else {\n\n while (src < buf + buf_size && samples + 3 < samples_end) {\n\n *samples++ = adpcm_sbpro_expand_nibble(&c->status[0],\n\n src[0] >> 6 , 2, 2);\n\n *samples++ = adpcm_sbpro_expand_nibble(&c->status[st],\n\n (src[0] >> 4) & 0x03, 2, 2);\n\n *samples++ = adpcm_sbpro_expand_nibble(&c->status[0],\n\n (src[0] >> 2) & 0x03, 2, 2);\n\n *samples++ = adpcm_sbpro_expand_nibble(&c->status[st],\n\n src[0] & 0x03, 2, 2);\n\n src++;\n\n }\n\n }\n\n break;\n\n case CODEC_ID_ADPCM_SWF:\n\n {\n\n GetBitContext gb;\n\n const int *table;\n\n int k0, signmask, nb_bits, count;\n\n int size = buf_size*8;\n\n\n\n init_get_bits(&gb, buf, size);\n\n\n\n //read bits & initial values\n\n nb_bits = get_bits(&gb, 2)+2;\n\n //av_log(NULL,AV_LOG_INFO,\"nb_bits: %d\\n\", nb_bits);\n\n table = swf_index_tables[nb_bits-2];\n\n k0 = 1 << (nb_bits-2);\n\n signmask = 1 << (nb_bits-1);\n\n\n\n while (get_bits_count(&gb) <= size - 22*avctx->channels) {\n\n for (i = 0; i < avctx->channels; i++) {\n\n *samples++ = c->status[i].predictor = get_sbits(&gb, 16);\n\n c->status[i].step_index = get_bits(&gb, 6);\n\n }\n\n\n\n for (count = 0; get_bits_count(&gb) <= size - nb_bits*avctx->channels && count < 4095; count++) {\n\n int i;\n\n\n\n for (i = 0; i < avctx->channels; i++) {\n\n // similar to IMA adpcm\n\n int delta = get_bits(&gb, nb_bits);\n\n int step = ff_adpcm_step_table[c->status[i].step_index];\n\n long vpdiff = 0; // vpdiff = (delta+0.5)*step/4\n\n int k = k0;\n\n\n\n do {\n\n if (delta & k)\n\n vpdiff += step;\n\n step >>= 1;\n\n k >>= 1;\n\n } while(k);\n\n vpdiff += step;\n\n\n\n if (delta & signmask)\n\n c->status[i].predictor -= vpdiff;\n\n else\n\n c->status[i].predictor += vpdiff;\n\n\n\n c->status[i].step_index += table[delta & (~signmask)];\n\n\n\n c->status[i].step_index = av_clip(c->status[i].step_index, 0, 88);\n\n c->status[i].predictor = av_clip_int16(c->status[i].predictor);\n\n\n\n *samples++ = c->status[i].predictor;\n\n if (samples >= samples_end) {\n\n av_log(avctx, AV_LOG_ERROR, \"allocated output buffer is too small\\n\");\n\n return -1;\n\n }\n\n }\n\n }\n\n }\n\n src += buf_size;\n\n break;\n\n }\n\n case CODEC_ID_ADPCM_YAMAHA:\n\n while (src < buf + buf_size) {\n\n if (st) {\n\n *samples++ = adpcm_yamaha_expand_nibble(&c->status[0],\n\n src[0] & 0x0F);\n\n *samples++ = adpcm_yamaha_expand_nibble(&c->status[1],\n\n src[0] >> 4 );\n\n } else {\n\n *samples++ = adpcm_yamaha_expand_nibble(&c->status[0],\n\n src[0] & 0x0F);\n\n *samples++ = adpcm_yamaha_expand_nibble(&c->status[0],\n\n src[0] >> 4 );\n\n }\n\n src++;\n\n }\n\n break;\n\n case CODEC_ID_ADPCM_THP:\n\n {\n\n int table[2][16];\n\n unsigned int samplecnt;\n\n int prev[2][2];\n\n int ch;\n\n\n\n if (buf_size < 80) {\n\n av_log(avctx, AV_LOG_ERROR, \"frame too small\\n\");\n\n return -1;\n\n }\n\n\n\n src+=4;\n\n samplecnt = bytestream_get_be32(&src);\n\n\n\n for (i = 0; i < 32; i++)\n\n table[0][i] = (int16_t)bytestream_get_be16(&src);\n\n\n\n /* Initialize the previous sample. */\n\n for (i = 0; i < 4; i++)\n\n prev[0][i] = (int16_t)bytestream_get_be16(&src);\n\n\n\n if (samplecnt >= (samples_end - samples) / (st + 1)) {\n\n av_log(avctx, AV_LOG_ERROR, \"allocated output buffer is too small\\n\");\n\n return -1;\n\n }\n\n\n\n for (ch = 0; ch <= st; ch++) {\n\n samples = (unsigned short *) data + ch;\n\n\n\n /* Read in every sample for this channel. */\n\n for (i = 0; i < samplecnt / 14; i++) {\n\n int index = (*src >> 4) & 7;\n\n unsigned int exp = 28 - (*src++ & 15);\n\n int factor1 = table[ch][index * 2];\n\n int factor2 = table[ch][index * 2 + 1];\n\n\n\n /* Decode 14 samples. */\n\n for (n = 0; n < 14; n++) {\n\n int32_t sampledat;\n\n if(n&1) sampledat= *src++ <<28;\n\n else sampledat= (*src&0xF0)<<24;\n\n\n\n sampledat = ((prev[ch][0]*factor1\n\n + prev[ch][1]*factor2) >> 11) + (sampledat>>exp);\n\n *samples = av_clip_int16(sampledat);\n\n prev[ch][1] = prev[ch][0];\n\n prev[ch][0] = *samples++;\n\n\n\n /* In case of stereo, skip one sample, this sample\n\n is for the other channel. */\n\n samples += st;\n\n }\n\n }\n\n }\n\n\n\n /* In the previous loop, in case stereo is used, samples is\n\n increased exactly one time too often. */\n\n samples -= st;\n\n break;\n\n }\n\n\n\n default:\n\n return -1;\n\n }\n\n *data_size = (uint8_t *)samples - (uint8_t *)data;\n\n return src - buf;\n\n}\n", + "output": "1", + "index": 6318 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int qcow2_update_header(BlockDriverState *bs)\n\n{\n\n BDRVQcowState *s = bs->opaque;\n\n QCowHeader *header;\n\n char *buf;\n\n size_t buflen = s->cluster_size;\n\n int ret;\n\n uint64_t total_size;\n\n uint32_t refcount_table_clusters;\n\n size_t header_length;\n\n Qcow2UnknownHeaderExtension *uext;\n\n\n\n buf = qemu_blockalign(bs, buflen);\n\n\n\n /* Header structure */\n\n header = (QCowHeader*) buf;\n\n\n\n if (buflen < sizeof(*header)) {\n\n ret = -ENOSPC;\n\n goto fail;\n\n }\n\n\n\n header_length = sizeof(*header) + s->unknown_header_fields_size;\n\n total_size = bs->total_sectors * BDRV_SECTOR_SIZE;\n\n refcount_table_clusters = s->refcount_table_size >> (s->cluster_bits - 3);\n\n\n\n *header = (QCowHeader) {\n\n /* Version 2 fields */\n\n .magic = cpu_to_be32(QCOW_MAGIC),\n\n .version = cpu_to_be32(s->qcow_version),\n\n .backing_file_offset = 0,\n\n .backing_file_size = 0,\n\n .cluster_bits = cpu_to_be32(s->cluster_bits),\n\n .size = cpu_to_be64(total_size),\n\n .crypt_method = cpu_to_be32(s->crypt_method_header),\n\n .l1_size = cpu_to_be32(s->l1_size),\n\n .l1_table_offset = cpu_to_be64(s->l1_table_offset),\n\n .refcount_table_offset = cpu_to_be64(s->refcount_table_offset),\n\n .refcount_table_clusters = cpu_to_be32(refcount_table_clusters),\n\n .nb_snapshots = cpu_to_be32(s->nb_snapshots),\n\n .snapshots_offset = cpu_to_be64(s->snapshots_offset),\n\n\n\n /* Version 3 fields */\n\n .incompatible_features = cpu_to_be64(s->incompatible_features),\n\n .compatible_features = cpu_to_be64(s->compatible_features),\n\n .autoclear_features = cpu_to_be64(s->autoclear_features),\n\n .refcount_order = cpu_to_be32(3 + REFCOUNT_SHIFT),\n\n .header_length = cpu_to_be32(header_length),\n\n };\n\n\n\n /* For older versions, write a shorter header */\n\n switch (s->qcow_version) {\n\n case 2:\n\n ret = offsetof(QCowHeader, incompatible_features);\n\n break;\n\n case 3:\n\n ret = sizeof(*header);\n\n break;\n\n default:\n\n return -EINVAL;\n\n }\n\n\n\n buf += ret;\n\n buflen -= ret;\n\n memset(buf, 0, buflen);\n\n\n\n /* Preserve any unknown field in the header */\n\n if (s->unknown_header_fields_size) {\n\n if (buflen < s->unknown_header_fields_size) {\n\n ret = -ENOSPC;\n\n goto fail;\n\n }\n\n\n\n memcpy(buf, s->unknown_header_fields, s->unknown_header_fields_size);\n\n buf += s->unknown_header_fields_size;\n\n buflen -= s->unknown_header_fields_size;\n\n }\n\n\n\n /* Backing file format header extension */\n\n if (*bs->backing_format) {\n\n ret = header_ext_add(buf, QCOW2_EXT_MAGIC_BACKING_FORMAT,\n\n bs->backing_format, strlen(bs->backing_format),\n\n buflen);\n\n if (ret < 0) {\n\n goto fail;\n\n }\n\n\n\n buf += ret;\n\n buflen -= ret;\n\n }\n\n\n\n /* Feature table */\n\n Qcow2Feature features[] = {\n\n /* no feature defined yet */\n\n };\n\n\n\n ret = header_ext_add(buf, QCOW2_EXT_MAGIC_FEATURE_TABLE,\n\n features, sizeof(features), buflen);\n\n if (ret < 0) {\n\n goto fail;\n\n }\n\n buf += ret;\n\n buflen -= ret;\n\n\n\n /* Keep unknown header extensions */\n\n QLIST_FOREACH(uext, &s->unknown_header_ext, next) {\n\n ret = header_ext_add(buf, uext->magic, uext->data, uext->len, buflen);\n\n if (ret < 0) {\n\n goto fail;\n\n }\n\n\n\n buf += ret;\n\n buflen -= ret;\n\n }\n\n\n\n /* End of header extensions */\n\n ret = header_ext_add(buf, QCOW2_EXT_MAGIC_END, NULL, 0, buflen);\n\n if (ret < 0) {\n\n goto fail;\n\n }\n\n\n\n buf += ret;\n\n buflen -= ret;\n\n\n\n /* Backing file name */\n\n if (*bs->backing_file) {\n\n size_t backing_file_len = strlen(bs->backing_file);\n\n\n\n if (buflen < backing_file_len) {\n\n ret = -ENOSPC;\n\n goto fail;\n\n }\n\n\n\n strncpy(buf, bs->backing_file, buflen);\n\n\n\n header->backing_file_offset = cpu_to_be64(buf - ((char*) header));\n\n header->backing_file_size = cpu_to_be32(backing_file_len);\n\n }\n\n\n\n /* Write the new header */\n\n ret = bdrv_pwrite(bs->file, 0, header, s->cluster_size);\n\n if (ret < 0) {\n\n goto fail;\n\n }\n\n\n\n ret = 0;\n\nfail:\n\n qemu_vfree(header);\n\n return ret;\n\n}\n", + "output": "1", + "index": 710 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "print_insn_microblaze (bfd_vma memaddr, struct disassemble_info * info)\n\n{\n\n fprintf_ftype fprintf = info->fprintf_func;\n\n void * stream = info->stream;\n\n unsigned long inst, prev_inst;\n\n struct op_code_struct * op, *pop;\n\n int immval = 0;\n\n bfd_boolean immfound = FALSE;\n\n static bfd_vma prev_insn_addr = -1; /*init the prev insn addr */\n\n static int prev_insn_vma = -1; /*init the prev insn vma */\n\n int curr_insn_vma = info->buffer_vma;\n\n\n\n info->bytes_per_chunk = 4;\n\n\n\n inst = read_insn_microblaze (memaddr, info, &op);\n\n if (inst == 0) {\n\n return -1;\n\n }\n\n \n\n if (prev_insn_vma == curr_insn_vma) {\n\n if (memaddr-(info->bytes_per_chunk) == prev_insn_addr) {\n\n prev_inst = read_insn_microblaze (prev_insn_addr, info, &pop);\n\n if (prev_inst == 0)\n\n return -1;\n\n if (pop->instr == imm) {\n\n immval = (get_int_field_imm(prev_inst) << 16) & 0xffff0000;\n\n immfound = TRUE;\n\n }\n\n else {\n\n immval = 0;\n\n immfound = FALSE;\n\n }\n\n }\n\n }\n\n /* make curr insn as prev insn */\n\n prev_insn_addr = memaddr;\n\n prev_insn_vma = curr_insn_vma;\n\n\n\n if (op->name == 0) {\n\n fprintf (stream, \".short 0x%04lx\", inst);\n\n }\n\n else\n\n {\n\n fprintf (stream, \"%s\", op->name);\n\n \n\n switch (op->inst_type)\n\n\t{\n\n case INST_TYPE_RD_R1_R2:\n\n fprintf(stream, \"\\t%s, %s, %s\", get_field_rd(inst), get_field_r1(inst), get_field_r2(inst));\n\n break;\n\n case INST_TYPE_RD_R1_IMM:\n\n\t fprintf(stream, \"\\t%s, %s, %s\", get_field_rd(inst), get_field_r1(inst), get_field_imm(inst));\n\n\t if (info->print_address_func && get_int_field_r1(inst) == 0 && info->symbol_at_address_func) {\n\n\t if (immfound)\n\n\t immval |= (get_int_field_imm(inst) & 0x0000ffff);\n\n\t else {\n\n\t immval = get_int_field_imm(inst);\n\n\t if (immval & 0x8000)\n\n\t\timmval |= 0xFFFF0000;\n\n\t }\n\n\t if (immval > 0 && info->symbol_at_address_func(immval, info)) {\n\n\t fprintf (stream, \"\\t// \");\n\n\t info->print_address_func (immval, info);\n\n\t }\n\n\t }\n\n\t break;\n\n\tcase INST_TYPE_RD_R1_IMM5:\n\n\t fprintf(stream, \"\\t%s, %s, %s\", get_field_rd(inst), get_field_r1(inst), get_field_imm5(inst));\n\n\t break;\n\n\tcase INST_TYPE_RD_RFSL:\n\n\t fprintf(stream, \"\\t%s, %s\", get_field_rd(inst), get_field_rfsl(inst));\n\n\t break;\n\n\tcase INST_TYPE_R1_RFSL:\n\n\t fprintf(stream, \"\\t%s, %s\", get_field_r1(inst), get_field_rfsl(inst));\n\n\t break;\n\n\tcase INST_TYPE_RD_SPECIAL:\n\n\t fprintf(stream, \"\\t%s, %s\", get_field_rd(inst), get_field_special(inst, op));\n\n\t break;\n\n\tcase INST_TYPE_SPECIAL_R1:\n\n\t fprintf(stream, \"\\t%s, %s\", get_field_special(inst, op), get_field_r1(inst));\n\n\t break;\n\n\tcase INST_TYPE_RD_R1:\n\n\t fprintf(stream, \"\\t%s, %s\", get_field_rd(inst), get_field_r1(inst));\n\n\t break;\n\n\tcase INST_TYPE_R1_R2:\n\n\t fprintf(stream, \"\\t%s, %s\", get_field_r1(inst), get_field_r2(inst));\n\n\t break;\n\n\tcase INST_TYPE_R1_IMM:\n\n\t fprintf(stream, \"\\t%s, %s\", get_field_r1(inst), get_field_imm(inst));\n\n\t /* The non-pc relative instructions are returns, which shouldn't \n\n\t have a label printed */\n\n\t if (info->print_address_func && op->inst_offset_type == INST_PC_OFFSET && info->symbol_at_address_func) {\n\n\t if (immfound)\n\n\t immval |= (get_int_field_imm(inst) & 0x0000ffff);\n\n\t else {\n\n\t immval = get_int_field_imm(inst);\n\n\t if (immval & 0x8000)\n\n\t\timmval |= 0xFFFF0000;\n\n\t }\n\n\t immval += memaddr;\n\n\t if (immval > 0 && info->symbol_at_address_func(immval, info)) {\n\n\t fprintf (stream, \"\\t// \");\n\n\t info->print_address_func (immval, info);\n\n\t } else {\n\n\t fprintf (stream, \"\\t\\t// \");\n\n\t fprintf (stream, \"%x\", immval);\n\n\t }\n\n\t }\n\n\t break;\n\n case INST_TYPE_RD_IMM:\n\n\t fprintf(stream, \"\\t%s, %s\", get_field_rd(inst), get_field_imm(inst));\n\n\t if (info->print_address_func && info->symbol_at_address_func) {\n\n\t if (immfound)\n\n\t immval |= (get_int_field_imm(inst) & 0x0000ffff);\n\n\t else {\n\n\t immval = get_int_field_imm(inst);\n\n\t if (immval & 0x8000)\n\n\t\timmval |= 0xFFFF0000;\n\n\t }\n\n\t if (op->inst_offset_type == INST_PC_OFFSET)\n\n\t immval += (int) memaddr;\n\n\t if (info->symbol_at_address_func(immval, info)) {\n\n\t fprintf (stream, \"\\t// \");\n\n\t info->print_address_func (immval, info);\n\n\t } \n\n\t }\n\n\t break;\n\n case INST_TYPE_IMM:\n\n\t fprintf(stream, \"\\t%s\", get_field_imm(inst));\n\n\t if (info->print_address_func && info->symbol_at_address_func && op->instr != imm) {\n\n\t if (immfound)\n\n\t immval |= (get_int_field_imm(inst) & 0x0000ffff);\n\n\t else {\n\n\t immval = get_int_field_imm(inst);\n\n\t if (immval & 0x8000)\n\n\t\timmval |= 0xFFFF0000;\n\n\t }\n\n\t if (op->inst_offset_type == INST_PC_OFFSET)\n\n\t immval += (int) memaddr;\n\n\t if (immval > 0 && info->symbol_at_address_func(immval, info)) {\n\n\t fprintf (stream, \"\\t// \");\n\n\t info->print_address_func (immval, info);\n\n\t } else if (op->inst_offset_type == INST_PC_OFFSET) {\n\n\t fprintf (stream, \"\\t\\t// \");\n\n\t fprintf (stream, \"%x\", immval);\n\n\t }\n\n\t }\n\n\t break;\n\n case INST_TYPE_RD_R2:\n\n\t fprintf(stream, \"\\t%s, %s\", get_field_rd(inst), get_field_r2(inst));\n\n\t break;\n\n case INST_TYPE_R2:\n\n fprintf(stream, \"\\t%s\", get_field_r2(inst));\n\n break;\n\n case INST_TYPE_R1:\n\n fprintf(stream, \"\\t%s\", get_field_r1(inst));\n\n break;\n\n case INST_TYPE_RD_R1_SPECIAL:\n\n fprintf(stream, \"\\t%s, %s\", get_field_rd(inst), get_field_r2(inst));\n\n break;\n\n case INST_TYPE_RD_IMM15:\n\n fprintf(stream, \"\\t%s, %s\", get_field_rd(inst), get_field_imm15(inst));\n\n break;\n\n /* For tuqula instruction */\n\n case INST_TYPE_RD:\n\n fprintf(stream, \"\\t%s\", get_field_rd(inst));\n\n break;\n\n case INST_TYPE_RFSL:\n\n fprintf(stream, \"\\t%s\", get_field_rfsl(inst));\n\n break;\n\n default:\n\n\t /* if the disassembler lags the instruction set */\n\n\t fprintf (stream, \"\\tundecoded operands, inst is 0x%04lx\", inst);\n\n\t break;\n\n\t}\n\n }\n\n \n\n /* Say how many bytes we consumed? */\n\n return 4;\n\n}\n", + "output": "0", + "index": 7089 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void dump_stream_format(AVFormatContext *ic, int i,\n\n int index, int is_output)\n\n{\n\n char buf[256];\n\n int flags = (is_output ? ic->oformat->flags : ic->iformat->flags);\n\n AVStream *st = ic->streams[i];\n\n AVDictionaryEntry *lang = av_dict_get(st->metadata, \"language\", NULL, 0);\n\n char *separator = ic->dump_separator;\n\n char **codec_separator = av_opt_ptr(st->codec->av_class, st->codec, \"dump_separator\");\n\n int use_format_separator = !*codec_separator;\n\n\n\n if (use_format_separator)\n\n *codec_separator = av_strdup(separator);\n\n avcodec_string(buf, sizeof(buf), st->codec, is_output);\n\n if (use_format_separator)\n\n av_freep(codec_separator);\n\n av_log(NULL, AV_LOG_INFO, \" Stream #%d:%d\", index, i);\n\n\n\n /* the pid is an important information, so we display it */\n\n /* XXX: add a generic system */\n\n if (flags & AVFMT_SHOW_IDS)\n\n av_log(NULL, AV_LOG_INFO, \"[0x%x]\", st->id);\n\n if (lang)\n\n av_log(NULL, AV_LOG_INFO, \"(%s)\", lang->value);\n\n av_log(NULL, AV_LOG_DEBUG, \", %d, %d/%d\", st->codec_info_nb_frames,\n\n st->time_base.num, st->time_base.den);\n\n av_log(NULL, AV_LOG_INFO, \": %s\", buf);\n\n\n\n if (st->sample_aspect_ratio.num && // default\n\n av_cmp_q(st->sample_aspect_ratio, st->codec->sample_aspect_ratio)) {\n\n AVRational display_aspect_ratio;\n\n av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,\n\n st->codec->width * st->sample_aspect_ratio.num,\n\n st->codec->height * st->sample_aspect_ratio.den,\n\n 1024 * 1024);\n\n av_log(NULL, AV_LOG_INFO, \", SAR %d:%d DAR %d:%d\",\n\n st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,\n\n display_aspect_ratio.num, display_aspect_ratio.den);\n\n }\n\n\n\n if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {\n\n int fps = st->avg_frame_rate.den && st->avg_frame_rate.num;\n\n int tbr = st->r_frame_rate.den && st->r_frame_rate.num;\n\n int tbn = st->time_base.den && st->time_base.num;\n\n int tbc = st->codec->time_base.den && st->codec->time_base.num;\n\n\n\n if (fps || tbr || tbn || tbc)\n\n av_log(NULL, AV_LOG_INFO, \"%s\", separator);\n\n\n\n if (fps)\n\n print_fps(av_q2d(st->avg_frame_rate), tbr || tbn || tbc ? \"fps, \" : \"fps\");\n\n if (tbr)\n\n print_fps(av_q2d(st->r_frame_rate), tbn || tbc ? \"tbr, \" : \"tbr\");\n\n if (tbn)\n\n print_fps(1 / av_q2d(st->time_base), tbc ? \"tbn, \" : \"tbn\");\n\n if (tbc)\n\n print_fps(1 / av_q2d(st->codec->time_base), \"tbc\");\n\n }\n\n\n\n if (st->disposition & AV_DISPOSITION_DEFAULT)\n\n av_log(NULL, AV_LOG_INFO, \" (default)\");\n\n if (st->disposition & AV_DISPOSITION_DUB)\n\n av_log(NULL, AV_LOG_INFO, \" (dub)\");\n\n if (st->disposition & AV_DISPOSITION_ORIGINAL)\n\n av_log(NULL, AV_LOG_INFO, \" (original)\");\n\n if (st->disposition & AV_DISPOSITION_COMMENT)\n\n av_log(NULL, AV_LOG_INFO, \" (comment)\");\n\n if (st->disposition & AV_DISPOSITION_LYRICS)\n\n av_log(NULL, AV_LOG_INFO, \" (lyrics)\");\n\n if (st->disposition & AV_DISPOSITION_KARAOKE)\n\n av_log(NULL, AV_LOG_INFO, \" (karaoke)\");\n\n if (st->disposition & AV_DISPOSITION_FORCED)\n\n av_log(NULL, AV_LOG_INFO, \" (forced)\");\n\n if (st->disposition & AV_DISPOSITION_HEARING_IMPAIRED)\n\n av_log(NULL, AV_LOG_INFO, \" (hearing impaired)\");\n\n if (st->disposition & AV_DISPOSITION_VISUAL_IMPAIRED)\n\n av_log(NULL, AV_LOG_INFO, \" (visual impaired)\");\n\n if (st->disposition & AV_DISPOSITION_CLEAN_EFFECTS)\n\n av_log(NULL, AV_LOG_INFO, \" (clean effects)\");\n\n av_log(NULL, AV_LOG_INFO, \"\\n\");\n\n\n\n dump_metadata(NULL, st->metadata, \" \");\n\n\n\n dump_sidedata(NULL, st, \" \");\n\n}\n", + "output": "1", + "index": 4003 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static inline void RENAME(hScale)(int16_t *dst, int dstW, uint8_t *src, int srcW, int xInc,\n\n\t\t\t\t int16_t *filter, int16_t *filterPos, long filterSize)\n\n{\n\n#ifdef HAVE_MMX\n\n\tassert(filterSize % 4 == 0 && filterSize>0);\n\n\tif(filterSize==4) // Always true for upscaling, sometimes for down, too.\n\n\t{\n\n\t\tlong counter= -2*dstW;\n\n\t\tfilter-= counter*2;\n\n\t\tfilterPos-= counter/2;\n\n\t\tdst-= counter/2;\n\n\t\tasm volatile(\n\n#if defined(PIC)\n\n\t\t\t\"push %%\"REG_b\" \t\t\\n\\t\"\n\n#endif\n\n\t\t\t\"pxor %%mm7, %%mm7\t\t\\n\\t\"\n\n\t\t\t\"movq \"MANGLE(w02)\", %%mm6\t\\n\\t\"\n\n\t\t\t\"push %%\"REG_BP\"\t\t\\n\\t\" // we use 7 regs here ...\n\n\t\t\t\"mov %%\"REG_a\", %%\"REG_BP\"\t\\n\\t\"\n\n\t\t\tASMALIGN(4)\n\n\t\t\t\"1:\t\t\t\t\\n\\t\"\n\n\t\t\t\"movzwl (%2, %%\"REG_BP\"), %%eax\t\\n\\t\"\n\n\t\t\t\"movzwl 2(%2, %%\"REG_BP\"), %%ebx\\n\\t\"\n\n\t\t\t\"movq (%1, %%\"REG_BP\", 4), %%mm1\\n\\t\"\n\n\t\t\t\"movq 8(%1, %%\"REG_BP\", 4), %%mm3\\n\\t\"\n\n\t\t\t\"movd (%3, %%\"REG_a\"), %%mm0\t\\n\\t\"\n\n\t\t\t\"movd (%3, %%\"REG_b\"), %%mm2\t\\n\\t\"\n\n\t\t\t\"punpcklbw %%mm7, %%mm0\t\t\\n\\t\"\n\n\t\t\t\"punpcklbw %%mm7, %%mm2\t\t\\n\\t\"\n\n\t\t\t\"pmaddwd %%mm1, %%mm0\t\t\\n\\t\"\n\n\t\t\t\"pmaddwd %%mm2, %%mm3\t\t\\n\\t\"\n\n\t\t\t\"psrad $8, %%mm0\t\t\\n\\t\"\n\n\t\t\t\"psrad $8, %%mm3\t\t\\n\\t\"\n\n\t\t\t\"packssdw %%mm3, %%mm0\t\t\\n\\t\"\n\n\t\t\t\"pmaddwd %%mm6, %%mm0\t\t\\n\\t\"\n\n\t\t\t\"packssdw %%mm0, %%mm0\t\t\\n\\t\"\n\n\t\t\t\"movd %%mm0, (%4, %%\"REG_BP\")\t\\n\\t\"\n\n\t\t\t\"add $4, %%\"REG_BP\"\t\t\\n\\t\"\n\n\t\t\t\" jnc 1b\t\t\t\\n\\t\"\n\n\n\n\t\t\t\"pop %%\"REG_BP\"\t\t\t\\n\\t\"\n\n#if defined(PIC)\n\n\t\t\t\"pop %%\"REG_b\" \t\t\\n\\t\"\n\n#endif\n\n\t\t\t: \"+a\" (counter)\n\n\t\t\t: \"c\" (filter), \"d\" (filterPos), \"S\" (src), \"D\" (dst)\n\n#if !defined(PIC)\n\n\t\t\t: \"%\"REG_b\n\n#endif\n\n\t\t);\n\n\t}\n\n\telse if(filterSize==8)\n\n\t{\n\n\t\tlong counter= -2*dstW;\n\n\t\tfilter-= counter*4;\n\n\t\tfilterPos-= counter/2;\n\n\t\tdst-= counter/2;\n\n\t\tasm volatile(\n\n#if defined(PIC)\n\n\t\t\t\"push %%\"REG_b\" \t\t\\n\\t\"\n\n#endif\n\n\t\t\t\"pxor %%mm7, %%mm7\t\t\\n\\t\"\n\n\t\t\t\"movq \"MANGLE(w02)\", %%mm6\t\\n\\t\"\n\n\t\t\t\"push %%\"REG_BP\"\t\t\\n\\t\" // we use 7 regs here ...\n\n\t\t\t\"mov %%\"REG_a\", %%\"REG_BP\"\t\\n\\t\"\n\n\t\t\tASMALIGN(4)\n\n\t\t\t\"1:\t\t\t\t\\n\\t\"\n\n\t\t\t\"movzwl (%2, %%\"REG_BP\"), %%eax\t\\n\\t\"\n\n\t\t\t\"movzwl 2(%2, %%\"REG_BP\"), %%ebx\\n\\t\"\n\n\t\t\t\"movq (%1, %%\"REG_BP\", 8), %%mm1\\n\\t\"\n\n\t\t\t\"movq 16(%1, %%\"REG_BP\", 8), %%mm3\\n\\t\"\n\n\t\t\t\"movd (%3, %%\"REG_a\"), %%mm0\t\\n\\t\"\n\n\t\t\t\"movd (%3, %%\"REG_b\"), %%mm2\t\\n\\t\"\n\n\t\t\t\"punpcklbw %%mm7, %%mm0\t\t\\n\\t\"\n\n\t\t\t\"punpcklbw %%mm7, %%mm2\t\t\\n\\t\"\n\n\t\t\t\"pmaddwd %%mm1, %%mm0\t\t\\n\\t\"\n\n\t\t\t\"pmaddwd %%mm2, %%mm3\t\t\\n\\t\"\n\n\n\n\t\t\t\"movq 8(%1, %%\"REG_BP\", 8), %%mm1\\n\\t\"\n\n\t\t\t\"movq 24(%1, %%\"REG_BP\", 8), %%mm5\\n\\t\"\n\n\t\t\t\"movd 4(%3, %%\"REG_a\"), %%mm4\t\\n\\t\"\n\n\t\t\t\"movd 4(%3, %%\"REG_b\"), %%mm2\t\\n\\t\"\n\n\t\t\t\"punpcklbw %%mm7, %%mm4\t\t\\n\\t\"\n\n\t\t\t\"punpcklbw %%mm7, %%mm2\t\t\\n\\t\"\n\n\t\t\t\"pmaddwd %%mm1, %%mm4\t\t\\n\\t\"\n\n\t\t\t\"pmaddwd %%mm2, %%mm5\t\t\\n\\t\"\n\n\t\t\t\"paddd %%mm4, %%mm0\t\t\\n\\t\"\n\n\t\t\t\"paddd %%mm5, %%mm3\t\t\\n\\t\"\n\n\n\n\t\t\t\"psrad $8, %%mm0\t\t\\n\\t\"\n\n\t\t\t\"psrad $8, %%mm3\t\t\\n\\t\"\n\n\t\t\t\"packssdw %%mm3, %%mm0\t\t\\n\\t\"\n\n\t\t\t\"pmaddwd %%mm6, %%mm0\t\t\\n\\t\"\n\n\t\t\t\"packssdw %%mm0, %%mm0\t\t\\n\\t\"\n\n\t\t\t\"movd %%mm0, (%4, %%\"REG_BP\")\t\\n\\t\"\n\n\t\t\t\"add $4, %%\"REG_BP\"\t\t\\n\\t\"\n\n\t\t\t\" jnc 1b\t\t\t\\n\\t\"\n\n\n\n\t\t\t\"pop %%\"REG_BP\"\t\t\t\\n\\t\"\n\n#if defined(PIC)\n\n\t\t\t\"pop %%\"REG_b\" \t\t\\n\\t\"\n\n#endif\n\n\t\t\t: \"+a\" (counter)\n\n\t\t\t: \"c\" (filter), \"d\" (filterPos), \"S\" (src), \"D\" (dst)\n\n#if !defined(PIC)\n\n\t\t\t: \"%\"REG_b\n\n#endif\n\n\t\t);\n\n\t}\n\n\telse\n\n\t{\n\n\t\tuint8_t *offset = src+filterSize;\n\n\t\tlong counter= -2*dstW;\n\n//\t\tfilter-= counter*filterSize/2;\n\n\t\tfilterPos-= counter/2;\n\n\t\tdst-= counter/2;\n\n\t\tasm volatile(\n\n\t\t\t\"pxor %%mm7, %%mm7\t\t\\n\\t\"\n\n\t\t\t\"movq \"MANGLE(w02)\", %%mm6\t\\n\\t\"\n\n\t\t\tASMALIGN(4)\n\n\t\t\t\"1:\t\t\t\t\\n\\t\"\n\n\t\t\t\"mov %2, %%\"REG_c\"\t\t\\n\\t\"\n\n\t\t\t\"movzwl (%%\"REG_c\", %0), %%eax\t\\n\\t\"\n\n\t\t\t\"movzwl 2(%%\"REG_c\", %0), %%edx\t\\n\\t\"\n\n\t\t\t\"mov %5, %%\"REG_c\"\t\t\\n\\t\"\n\n\t\t\t\"pxor %%mm4, %%mm4\t\t\\n\\t\"\n\n\t\t\t\"pxor %%mm5, %%mm5\t\t\\n\\t\"\n\n\t\t\t\"2:\t\t\t\t\\n\\t\"\n\n\t\t\t\"movq (%1), %%mm1\t\t\\n\\t\"\n\n\t\t\t\"movq (%1, %6), %%mm3\t\t\\n\\t\"\n\n\t\t\t\"movd (%%\"REG_c\", %%\"REG_a\"), %%mm0\\n\\t\"\n\n\t\t\t\"movd (%%\"REG_c\", %%\"REG_d\"), %%mm2\\n\\t\"\n\n\t\t\t\"punpcklbw %%mm7, %%mm0\t\t\\n\\t\"\n\n\t\t\t\"punpcklbw %%mm7, %%mm2\t\t\\n\\t\"\n\n\t\t\t\"pmaddwd %%mm1, %%mm0\t\t\\n\\t\"\n\n\t\t\t\"pmaddwd %%mm2, %%mm3\t\t\\n\\t\"\n\n\t\t\t\"paddd %%mm3, %%mm5\t\t\\n\\t\"\n\n\t\t\t\"paddd %%mm0, %%mm4\t\t\\n\\t\"\n\n\t\t\t\"add $8, %1\t\t\t\\n\\t\"\n\n\t\t\t\"add $4, %%\"REG_c\"\t\t\\n\\t\"\n\n\t\t\t\"cmp %4, %%\"REG_c\"\t\t\\n\\t\"\n\n\t\t\t\" jb 2b\t\t\t\t\\n\\t\"\n\n\t\t\t\"add %6, %1\t\t\t\\n\\t\"\n\n\t\t\t\"psrad $8, %%mm4\t\t\\n\\t\"\n\n\t\t\t\"psrad $8, %%mm5\t\t\\n\\t\"\n\n\t\t\t\"packssdw %%mm5, %%mm4\t\t\\n\\t\"\n\n\t\t\t\"pmaddwd %%mm6, %%mm4\t\t\\n\\t\"\n\n\t\t\t\"packssdw %%mm4, %%mm4\t\t\\n\\t\"\n\n\t\t\t\"mov %3, %%\"REG_a\"\t\t\\n\\t\"\n\n\t\t\t\"movd %%mm4, (%%\"REG_a\", %0)\t\\n\\t\"\n\n\t\t\t\"add $4, %0\t\t\t\\n\\t\"\n\n\t\t\t\" jnc 1b\t\t\t\\n\\t\"\n\n\n\n\t\t\t: \"+r\" (counter), \"+r\" (filter)\n\n\t\t\t: \"m\" (filterPos), \"m\" (dst), \"m\"(offset),\n\n\t\t\t \"m\" (src), \"r\" (filterSize*2)\n\n\t\t\t: \"%\"REG_a, \"%\"REG_c, \"%\"REG_d\n\n\t\t);\n\n\t}\n\n#else\n\n#ifdef HAVE_ALTIVEC\n\n\thScale_altivec_real(dst, dstW, src, srcW, xInc, filter, filterPos, filterSize);\n\n#else\n\n\tint i;\n\n\tfor(i=0; i>7, 0, (1<<15)-1); // the cubic equation does overflow ...\n\n//\t\tdst[i] = val>>7;\n\n\t}\n\n#endif\n\n#endif\n\n}\n", + "output": "1", + "index": 16683 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int decode_simple_internal(AVCodecContext *avctx, AVFrame *frame)\n\n{\n\n AVCodecInternal *avci = avctx->internal;\n\n DecodeSimpleContext *ds = &avci->ds;\n\n AVPacket *pkt = ds->in_pkt;\n\n // copy to ensure we do not change pkt\n\n AVPacket tmp;\n\n int got_frame, actual_got_frame, did_split;\n\n int ret;\n\n\n\n if (!pkt->data && !avci->draining) {\n\n av_packet_unref(pkt);\n\n ret = ff_decode_get_packet(avctx, pkt);\n\n if (ret < 0 && ret != AVERROR_EOF)\n\n return ret;\n\n }\n\n\n\n // Some codecs (at least wma lossless) will crash when feeding drain packets\n\n // after EOF was signaled.\n\n if (avci->draining_done)\n\n return AVERROR_EOF;\n\n\n\n if (!pkt->data &&\n\n !(avctx->codec->capabilities & AV_CODEC_CAP_DELAY ||\n\n avctx->active_thread_type & FF_THREAD_FRAME))\n\n return AVERROR_EOF;\n\n\n\n tmp = *pkt;\n\n#if FF_API_MERGE_SD\n\nFF_DISABLE_DEPRECATION_WARNINGS\n\n did_split = av_packet_split_side_data(&tmp);\n\n\n\n if (did_split) {\n\n ret = extract_packet_props(avctx->internal, &tmp);\n\n if (ret < 0)\n\n return ret;\n\n\n\n ret = apply_param_change(avctx, &tmp);\n\n if (ret < 0)\n\n return ret;\n\n }\n\nFF_ENABLE_DEPRECATION_WARNINGS\n\n#endif\n\n\n\n got_frame = 0;\n\n\n\n if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME) {\n\n ret = ff_thread_decode_frame(avctx, frame, &got_frame, &tmp);\n\n } else {\n\n ret = avctx->codec->decode(avctx, frame, &got_frame, &tmp);\n\n\n\n if (avctx->codec->type == AVMEDIA_TYPE_VIDEO) {\n\n if (!(avctx->codec->caps_internal & FF_CODEC_CAP_SETS_PKT_DTS))\n\n frame->pkt_dts = pkt->dts;\n\n if(!avctx->has_b_frames)\n\n frame->pkt_pos = pkt->pos;\n\n //FIXME these should be under if(!avctx->has_b_frames)\n\n /* get_buffer is supposed to set frame parameters */\n\n if (!(avctx->codec->capabilities & AV_CODEC_CAP_DR1)) {\n\n if (!frame->sample_aspect_ratio.num) frame->sample_aspect_ratio = avctx->sample_aspect_ratio;\n\n if (!frame->width) frame->width = avctx->width;\n\n if (!frame->height) frame->height = avctx->height;\n\n if (frame->format == AV_PIX_FMT_NONE) frame->format = avctx->pix_fmt;\n\n }\n\n } else if (avctx->codec->type == AVMEDIA_TYPE_AUDIO) {\n\n frame->pkt_dts = pkt->dts;\n\n }\n\n }\n\n emms_c();\n\n actual_got_frame = got_frame;\n\n\n\n if (avctx->codec->type == AVMEDIA_TYPE_VIDEO) {\n\n if (frame->flags & AV_FRAME_FLAG_DISCARD)\n\n got_frame = 0;\n\n if (got_frame)\n\n frame->best_effort_timestamp = guess_correct_pts(avctx,\n\n frame->pts,\n\n frame->pkt_dts);\n\n } else if (avctx->codec->type == AVMEDIA_TYPE_AUDIO) {\n\n uint8_t *side;\n\n int side_size;\n\n uint32_t discard_padding = 0;\n\n uint8_t skip_reason = 0;\n\n uint8_t discard_reason = 0;\n\n\n\n if (ret >= 0 && got_frame) {\n\n frame->best_effort_timestamp = guess_correct_pts(avctx,\n\n frame->pts,\n\n frame->pkt_dts);\n\n if (frame->format == AV_SAMPLE_FMT_NONE)\n\n frame->format = avctx->sample_fmt;\n\n if (!frame->channel_layout)\n\n frame->channel_layout = avctx->channel_layout;\n\n if (!frame->channels)\n\n frame->channels = avctx->channels;\n\n if (!frame->sample_rate)\n\n frame->sample_rate = avctx->sample_rate;\n\n }\n\n\n\n side= av_packet_get_side_data(pkt, AV_PKT_DATA_SKIP_SAMPLES, &side_size);\n\n if(side && side_size>=10) {\n\n avctx->internal->skip_samples = AV_RL32(side) * avctx->internal->skip_samples_multiplier;\n\n discard_padding = AV_RL32(side + 4);\n\n av_log(avctx, AV_LOG_DEBUG, \"skip %d / discard %d samples due to side data\\n\",\n\n avctx->internal->skip_samples, (int)discard_padding);\n\n skip_reason = AV_RL8(side + 8);\n\n discard_reason = AV_RL8(side + 9);\n\n }\n\n\n\n if ((frame->flags & AV_FRAME_FLAG_DISCARD) && got_frame &&\n\n !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {\n\n avctx->internal->skip_samples = FFMAX(0, avctx->internal->skip_samples - frame->nb_samples);\n\n got_frame = 0;\n\n }\n\n\n\n if (avctx->internal->skip_samples > 0 && got_frame &&\n\n !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {\n\n if(frame->nb_samples <= avctx->internal->skip_samples){\n\n got_frame = 0;\n\n avctx->internal->skip_samples -= frame->nb_samples;\n\n av_log(avctx, AV_LOG_DEBUG, \"skip whole frame, skip left: %d\\n\",\n\n avctx->internal->skip_samples);\n\n } else {\n\n av_samples_copy(frame->extended_data, frame->extended_data, 0, avctx->internal->skip_samples,\n\n frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format);\n\n if(avctx->pkt_timebase.num && avctx->sample_rate) {\n\n int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples,\n\n (AVRational){1, avctx->sample_rate},\n\n avctx->pkt_timebase);\n\n if(frame->pts!=AV_NOPTS_VALUE)\n\n frame->pts += diff_ts;\n\n#if FF_API_PKT_PTS\n\nFF_DISABLE_DEPRECATION_WARNINGS\n\n if(frame->pkt_pts!=AV_NOPTS_VALUE)\n\n frame->pkt_pts += diff_ts;\n\nFF_ENABLE_DEPRECATION_WARNINGS\n\n#endif\n\n if(frame->pkt_dts!=AV_NOPTS_VALUE)\n\n frame->pkt_dts += diff_ts;\n\n if (frame->pkt_duration >= diff_ts)\n\n frame->pkt_duration -= diff_ts;\n\n } else {\n\n av_log(avctx, AV_LOG_WARNING, \"Could not update timestamps for skipped samples.\\n\");\n\n }\n\n av_log(avctx, AV_LOG_DEBUG, \"skip %d/%d samples\\n\",\n\n avctx->internal->skip_samples, frame->nb_samples);\n\n frame->nb_samples -= avctx->internal->skip_samples;\n\n avctx->internal->skip_samples = 0;\n\n }\n\n }\n\n\n\n if (discard_padding > 0 && discard_padding <= frame->nb_samples && got_frame &&\n\n !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {\n\n if (discard_padding == frame->nb_samples) {\n\n got_frame = 0;\n\n } else {\n\n if(avctx->pkt_timebase.num && avctx->sample_rate) {\n\n int64_t diff_ts = av_rescale_q(frame->nb_samples - discard_padding,\n\n (AVRational){1, avctx->sample_rate},\n\n avctx->pkt_timebase);\n\n frame->pkt_duration = diff_ts;\n\n } else {\n\n av_log(avctx, AV_LOG_WARNING, \"Could not update timestamps for discarded samples.\\n\");\n\n }\n\n av_log(avctx, AV_LOG_DEBUG, \"discard %d/%d samples\\n\",\n\n (int)discard_padding, frame->nb_samples);\n\n frame->nb_samples -= discard_padding;\n\n }\n\n }\n\n\n\n if ((avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL) && got_frame) {\n\n AVFrameSideData *fside = av_frame_new_side_data(frame, AV_FRAME_DATA_SKIP_SAMPLES, 10);\n\n if (fside) {\n\n AV_WL32(fside->data, avctx->internal->skip_samples);\n\n AV_WL32(fside->data + 4, discard_padding);\n\n AV_WL8(fside->data + 8, skip_reason);\n\n AV_WL8(fside->data + 9, discard_reason);\n\n avctx->internal->skip_samples = 0;\n\n }\n\n }\n\n }\n\n#if FF_API_MERGE_SD\n\n if (did_split) {\n\n av_packet_free_side_data(&tmp);\n\n if(ret == tmp.size)\n\n ret = pkt->size;\n\n }\n\n#endif\n\n\n\n if (avctx->codec->type == AVMEDIA_TYPE_AUDIO &&\n\n !avci->showed_multi_packet_warning &&\n\n ret >= 0 && ret != pkt->size && !(avctx->codec->capabilities & AV_CODEC_CAP_SUBFRAMES)) {\n\n av_log(avctx, AV_LOG_WARNING, \"Multiple frames in a packet.\\n\");\n\n avci->showed_multi_packet_warning = 1;\n\n }\n\n\n\n if (!got_frame)\n\n av_frame_unref(frame);\n\n\n\n if (ret >= 0 && avctx->codec->type == AVMEDIA_TYPE_VIDEO && !(avctx->flags & AV_CODEC_FLAG_TRUNCATED))\n\n ret = pkt->size;\n\n\n\n#if FF_API_AVCTX_TIMEBASE\n\n if (avctx->framerate.num > 0 && avctx->framerate.den > 0)\n\n avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));\n\n#endif\n\n\n\n /* do not stop draining when actual_got_frame != 0 or ret < 0 */\n\n /* got_frame == 0 but actual_got_frame != 0 when frame is discarded */\n\n if (avctx->internal->draining && !actual_got_frame) {\n\n if (ret < 0) {\n\n /* prevent infinite loop if a decoder wrongly always return error on draining */\n\n /* reasonable nb_errors_max = maximum b frames + thread count */\n\n int nb_errors_max = 20 + (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME ?\n\n avctx->thread_count : 1);\n\n\n\n if (avci->nb_draining_errors++ >= nb_errors_max) {\n\n av_log(avctx, AV_LOG_ERROR, \"Too many errors when draining, this is a bug. \"\n\n \"Stop draining and force EOF.\\n\");\n\n avci->draining_done = 1;\n\n ret = AVERROR_BUG;\n\n }\n\n } else {\n\n avci->draining_done = 1;\n\n }\n\n }\n\n\n\n avci->compat_decode_consumed += ret;\n\n\n\n if (ret >= pkt->size || ret < 0) {\n\n av_packet_unref(pkt);\n\n } else {\n\n int consumed = ret;\n\n\n\n pkt->data += consumed;\n\n pkt->size -= consumed;\n\n avci->last_pkt_props->size -= consumed; // See extract_packet_props() comment.\n\n pkt->pts = AV_NOPTS_VALUE;\n\n pkt->dts = AV_NOPTS_VALUE;\n\n avci->last_pkt_props->pts = AV_NOPTS_VALUE;\n\n avci->last_pkt_props->dts = AV_NOPTS_VALUE;\n\n }\n\n\n\n if (got_frame)\n\n av_assert0(frame->buf[0]);\n\n\n\n return ret < 0 ? ret : 0;\n\n}\n", + "output": "0", + "index": 16943 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "av_cold void ff_vp8dsp_init_neon(VP8DSPContext *dsp)\n\n{\n\n dsp->vp8_luma_dc_wht = ff_vp8_luma_dc_wht_neon;\n\n\n\n dsp->vp8_idct_add = ff_vp8_idct_add_neon;\n\n dsp->vp8_idct_dc_add = ff_vp8_idct_dc_add_neon;\n\n dsp->vp8_idct_dc_add4y = ff_vp8_idct_dc_add4y_neon;\n\n dsp->vp8_idct_dc_add4uv = ff_vp8_idct_dc_add4uv_neon;\n\n\n\n dsp->vp8_v_loop_filter16y = ff_vp8_v_loop_filter16_neon;\n\n dsp->vp8_h_loop_filter16y = ff_vp8_h_loop_filter16_neon;\n\n dsp->vp8_v_loop_filter8uv = ff_vp8_v_loop_filter8uv_neon;\n\n dsp->vp8_h_loop_filter8uv = ff_vp8_h_loop_filter8uv_neon;\n\n\n\n dsp->vp8_v_loop_filter16y_inner = ff_vp8_v_loop_filter16_inner_neon;\n\n dsp->vp8_h_loop_filter16y_inner = ff_vp8_h_loop_filter16_inner_neon;\n\n dsp->vp8_v_loop_filter8uv_inner = ff_vp8_v_loop_filter8uv_inner_neon;\n\n dsp->vp8_h_loop_filter8uv_inner = ff_vp8_h_loop_filter8uv_inner_neon;\n\n\n\n dsp->vp8_v_loop_filter_simple = ff_vp8_v_loop_filter16_simple_neon;\n\n dsp->vp8_h_loop_filter_simple = ff_vp8_h_loop_filter16_simple_neon;\n\n\n\n dsp->put_vp8_epel_pixels_tab[0][0][0] = ff_put_vp8_pixels16_neon;\n\n dsp->put_vp8_epel_pixels_tab[0][0][2] = ff_put_vp8_epel16_h6_neon;\n\n dsp->put_vp8_epel_pixels_tab[0][2][0] = ff_put_vp8_epel16_v6_neon;\n\n dsp->put_vp8_epel_pixels_tab[0][2][2] = ff_put_vp8_epel16_h6v6_neon;\n\n\n\n dsp->put_vp8_epel_pixels_tab[1][0][0] = ff_put_vp8_pixels8_neon;\n\n dsp->put_vp8_epel_pixels_tab[1][0][1] = ff_put_vp8_epel8_h4_neon;\n\n dsp->put_vp8_epel_pixels_tab[1][0][2] = ff_put_vp8_epel8_h6_neon;\n\n dsp->put_vp8_epel_pixels_tab[1][1][0] = ff_put_vp8_epel8_v4_neon;\n\n dsp->put_vp8_epel_pixels_tab[1][1][1] = ff_put_vp8_epel8_h4v4_neon;\n\n dsp->put_vp8_epel_pixels_tab[1][1][2] = ff_put_vp8_epel8_h6v4_neon;\n\n dsp->put_vp8_epel_pixels_tab[1][2][0] = ff_put_vp8_epel8_v6_neon;\n\n dsp->put_vp8_epel_pixels_tab[1][2][1] = ff_put_vp8_epel8_h4v6_neon;\n\n dsp->put_vp8_epel_pixels_tab[1][2][2] = ff_put_vp8_epel8_h6v6_neon;\n\n\n\n dsp->put_vp8_epel_pixels_tab[2][0][1] = ff_put_vp8_epel4_h4_neon;\n\n dsp->put_vp8_epel_pixels_tab[2][0][2] = ff_put_vp8_epel4_h6_neon;\n\n dsp->put_vp8_epel_pixels_tab[2][1][0] = ff_put_vp8_epel4_v4_neon;\n\n dsp->put_vp8_epel_pixels_tab[2][1][1] = ff_put_vp8_epel4_h4v4_neon;\n\n dsp->put_vp8_epel_pixels_tab[2][1][2] = ff_put_vp8_epel4_h6v4_neon;\n\n dsp->put_vp8_epel_pixels_tab[2][2][0] = ff_put_vp8_epel4_v6_neon;\n\n dsp->put_vp8_epel_pixels_tab[2][2][1] = ff_put_vp8_epel4_h4v6_neon;\n\n dsp->put_vp8_epel_pixels_tab[2][2][2] = ff_put_vp8_epel4_h6v6_neon;\n\n\n\n dsp->put_vp8_bilinear_pixels_tab[0][0][0] = ff_put_vp8_pixels16_neon;\n\n dsp->put_vp8_bilinear_pixels_tab[0][0][1] = ff_put_vp8_bilin16_h_neon;\n\n dsp->put_vp8_bilinear_pixels_tab[0][0][2] = ff_put_vp8_bilin16_h_neon;\n\n dsp->put_vp8_bilinear_pixels_tab[0][1][0] = ff_put_vp8_bilin16_v_neon;\n\n dsp->put_vp8_bilinear_pixels_tab[0][1][1] = ff_put_vp8_bilin16_hv_neon;\n\n dsp->put_vp8_bilinear_pixels_tab[0][1][2] = ff_put_vp8_bilin16_hv_neon;\n\n dsp->put_vp8_bilinear_pixels_tab[0][2][0] = ff_put_vp8_bilin16_v_neon;\n\n dsp->put_vp8_bilinear_pixels_tab[0][2][1] = ff_put_vp8_bilin16_hv_neon;\n\n dsp->put_vp8_bilinear_pixels_tab[0][2][2] = ff_put_vp8_bilin16_hv_neon;\n\n\n\n dsp->put_vp8_bilinear_pixels_tab[1][0][0] = ff_put_vp8_pixels8_neon;\n\n dsp->put_vp8_bilinear_pixels_tab[1][0][1] = ff_put_vp8_bilin8_h_neon;\n\n dsp->put_vp8_bilinear_pixels_tab[1][0][2] = ff_put_vp8_bilin8_h_neon;\n\n dsp->put_vp8_bilinear_pixels_tab[1][1][0] = ff_put_vp8_bilin8_v_neon;\n\n dsp->put_vp8_bilinear_pixels_tab[1][1][1] = ff_put_vp8_bilin8_hv_neon;\n\n dsp->put_vp8_bilinear_pixels_tab[1][1][2] = ff_put_vp8_bilin8_hv_neon;\n\n dsp->put_vp8_bilinear_pixels_tab[1][2][0] = ff_put_vp8_bilin8_v_neon;\n\n dsp->put_vp8_bilinear_pixels_tab[1][2][1] = ff_put_vp8_bilin8_hv_neon;\n\n dsp->put_vp8_bilinear_pixels_tab[1][2][2] = ff_put_vp8_bilin8_hv_neon;\n\n\n\n dsp->put_vp8_bilinear_pixels_tab[2][0][1] = ff_put_vp8_bilin4_h_neon;\n\n dsp->put_vp8_bilinear_pixels_tab[2][0][2] = ff_put_vp8_bilin4_h_neon;\n\n dsp->put_vp8_bilinear_pixels_tab[2][1][0] = ff_put_vp8_bilin4_v_neon;\n\n dsp->put_vp8_bilinear_pixels_tab[2][1][1] = ff_put_vp8_bilin4_hv_neon;\n\n dsp->put_vp8_bilinear_pixels_tab[2][1][2] = ff_put_vp8_bilin4_hv_neon;\n\n dsp->put_vp8_bilinear_pixels_tab[2][2][0] = ff_put_vp8_bilin4_v_neon;\n\n dsp->put_vp8_bilinear_pixels_tab[2][2][1] = ff_put_vp8_bilin4_hv_neon;\n\n dsp->put_vp8_bilinear_pixels_tab[2][2][2] = ff_put_vp8_bilin4_hv_neon;\n\n}\n", + "output": "1", + "index": 19770 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static inline int RENAME(yuv420_rgb32)(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,\n\n int srcSliceH, uint8_t* dst[], int dstStride[]){\n\n int y, h_size;\n\n\n\n if(c->srcFormat == PIX_FMT_YUV422P){\n\n\tsrcStride[1] *= 2;\n\n\tsrcStride[2] *= 2;\n\n }\n\n\n\n h_size= (c->dstW+7)&~7;\n\n if(h_size*4 > FFABS(dstStride[0])) h_size-=8;\n\n\n\n __asm__ __volatile__ (\"pxor %mm4, %mm4;\" /* zero mm4 */ );\n\n\n\n for (y= 0; y>1)*srcStride[1];\n\n\tuint8_t *_pv = src[2] + (y>>1)*srcStride[2];\n\n\tlong index= -h_size/2;\n\n\n\n\t /* this mmx assembly code deals with SINGLE scan line at a time, it convert 8\n\n\t pixels in each iteration */\n\n\t __asm__ __volatile__ (\n\n\t/* load data for start of next scan line */\n\n\t\t \"movd (%2, %0), %%mm0;\" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */\n\n\t\t \"movd (%3, %0), %%mm1;\" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */\n\n\t\t \"movq (%5, %0, 2), %%mm6;\" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */\n\n//\t\t \".balign 16\t\t\t\\n\\t\"\n\n\t\t \"1:\t\t\t\t\\n\\t\"\n\nYUV2RGB\n\n\t\t /* convert RGB plane to RGB packed format,\n\n\t\t\tmm0 -> B, mm1 -> R, mm2 -> G, mm3 -> 0,\n\n\t\t\tmm4 -> GB, mm5 -> AR pixel 4-7,\n\n\t\t\tmm6 -> GB, mm7 -> AR pixel 0-3 */\n\n\t\t \"pxor %%mm3, %%mm3;\" /* zero mm3 */\n\n\n\n\t\t \"movq %%mm0, %%mm6;\" /* B7 B6 B5 B4 B3 B2 B1 B0 */\n\n\t\t \"movq %%mm1, %%mm7;\" /* R7 R6 R5 R4 R3 R2 R1 R0 */\n\n\n\n\t\t \"movq %%mm0, %%mm4;\" /* B7 B6 B5 B4 B3 B2 B1 B0 */\n\n\t\t \"movq %%mm1, %%mm5;\" /* R7 R6 R5 R4 R3 R2 R1 R0 */\n\n\n\n\t\t \"punpcklbw %%mm2, %%mm6;\" /* G3 B3 G2 B2 G1 B1 G0 B0 */\n\n\t\t \"punpcklbw %%mm3, %%mm7;\" /* 00 R3 00 R2 00 R1 00 R0 */\n\n\n\n\t\t \"punpcklwd %%mm7, %%mm6;\" /* 00 R1 B1 G1 00 R0 B0 G0 */\n\n\t\t MOVNTQ \" %%mm6, (%1);\" /* Store ARGB1 ARGB0 */\n\n\n\n\t\t \"movq %%mm0, %%mm6;\" /* B7 B6 B5 B4 B3 B2 B1 B0 */\n\n\t\t \"punpcklbw %%mm2, %%mm6;\" /* G3 B3 G2 B2 G1 B1 G0 B0 */\n\n\n\n\t\t \"punpckhwd %%mm7, %%mm6;\" /* 00 R3 G3 B3 00 R2 B3 G2 */\n\n\t\t MOVNTQ \" %%mm6, 8 (%1);\" /* Store ARGB3 ARGB2 */\n\n\n\n\t\t \"punpckhbw %%mm2, %%mm4;\" /* G7 B7 G6 B6 G5 B5 G4 B4 */\n\n\t\t \"punpckhbw %%mm3, %%mm5;\" /* 00 R7 00 R6 00 R5 00 R4 */\n\n\n\n\t\t \"punpcklwd %%mm5, %%mm4;\" /* 00 R5 B5 G5 00 R4 B4 G4 */\n\n\t\t MOVNTQ \" %%mm4, 16 (%1);\" /* Store ARGB5 ARGB4 */\n\n\n\n\t\t \"movq %%mm0, %%mm4;\" /* B7 B6 B5 B4 B3 B2 B1 B0 */\n\n\t\t \"punpckhbw %%mm2, %%mm4;\" /* G7 B7 G6 B6 G5 B5 G4 B4 */\n\n\n\n\t\t \"punpckhwd %%mm5, %%mm4;\" /* 00 R7 G7 B7 00 R6 B6 G6 */\n\n\t\t MOVNTQ \" %%mm4, 24 (%1);\" /* Store ARGB7 ARGB6 */\n\n\n\n\t\t \"movd 4 (%2, %0), %%mm0;\" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */\n\n\t\t \"movd 4 (%3, %0), %%mm1;\" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */\n\n\n\n\t\t \"pxor %%mm4, %%mm4;\" /* zero mm4 */\n\n\t\t \"movq 8 (%5, %0, 2), %%mm6;\" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */\n\n\n\n\t\t \"add $32, %1\t\t\t\\n\\t\"\n\n\t\t \"add $4, %0\t\t\t\\n\\t\"\n\n\t\t \" js 1b\t\t\t\t\\n\\t\"\n\n\n\n\t\t : \"+r\" (index), \"+r\" (_image)\n\n\t\t : \"r\" (_pu - index), \"r\" (_pv - index), \"r\"(&c->redDither), \"r\" (_py - 2*index)\n\n\t\t );\n\n }\n\n\n\n __asm__ __volatile__ (EMMS);\n\n return srcSliceH;\n\n}\n", + "output": "1", + "index": 5993 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static TCGArg *tcg_constant_folding(TCGContext *s, uint16_t *tcg_opc_ptr,\n TCGArg *args, TCGOpDef *tcg_op_defs)\n{\n int i, nb_ops, op_index, nb_temps, nb_globals, nb_call_args;\n TCGOpcode op;\n const TCGOpDef *def;\n TCGArg *gen_args;\n TCGArg tmp;\n TCGCond cond;\n /* Array VALS has an element for each temp.\n If this temp holds a constant then its value is kept in VALS' element.\n If this temp is a copy of other ones then the other copies are\n available through the doubly linked circular list. */\n nb_temps = s->nb_temps;\n nb_globals = s->nb_globals;\n memset(temps, 0, nb_temps * sizeof(struct tcg_temp_info));\n nb_ops = tcg_opc_ptr - gen_opc_buf;\n gen_args = args;\n for (op_index = 0; op_index < nb_ops; op_index++) {\n op = gen_opc_buf[op_index];\n def = &tcg_op_defs[op];\n /* Do copy propagation */\n if (op == INDEX_op_call) {\n int nb_oargs = args[0] >> 16;\n int nb_iargs = args[0] & 0xffff;\n for (i = nb_oargs + 1; i < nb_oargs + nb_iargs + 1; i++) {\n if (temps[args[i]].state == TCG_TEMP_COPY) {\n args[i] = find_better_copy(s, args[i]);\n } else {\n for (i = def->nb_oargs; i < def->nb_oargs + def->nb_iargs; i++) {\n if (temps[args[i]].state == TCG_TEMP_COPY) {\n args[i] = find_better_copy(s, args[i]);\n /* For commutative operations make constant second argument */\n CASE_OP_32_64(add):\n CASE_OP_32_64(mul):\n CASE_OP_32_64(and):\n CASE_OP_32_64(or):\n CASE_OP_32_64(eqv):\n CASE_OP_32_64(nand):\n CASE_OP_32_64(nor):\n if (temps[args[1]].state == TCG_TEMP_CONST) {\n tmp = args[1];\n args[1] = args[2];\n args[2] = tmp;\n CASE_OP_32_64(brcond):\n if (temps[args[0]].state == TCG_TEMP_CONST\n && temps[args[1]].state != TCG_TEMP_CONST) {\n tmp = args[0];\n args[0] = args[1];\n args[1] = tmp;\n args[2] = tcg_swap_cond(args[2]);\n CASE_OP_32_64(setcond):\n if (temps[args[1]].state == TCG_TEMP_CONST\n && temps[args[2]].state != TCG_TEMP_CONST) {\n tmp = args[1];\n args[1] = args[2];\n args[2] = tmp;\n args[3] = tcg_swap_cond(args[3]);\n CASE_OP_32_64(movcond):\n cond = args[5];\n if (temps[args[1]].state == TCG_TEMP_CONST\n && temps[args[2]].state != TCG_TEMP_CONST) {\n tmp = args[1];\n args[1] = args[2];\n args[2] = tmp;\n cond = tcg_swap_cond(cond);\n /* For movcond, we canonicalize the \"false\" input reg to match\n the destination reg so that the tcg backend can implement\n a \"move if true\" operation. */\n if (args[0] == args[3]) {\n tmp = args[3];\n args[3] = args[4];\n args[4] = tmp;\n cond = tcg_invert_cond(cond);\n args[5] = cond;\n /* Simplify expressions for \"shift/rot r, 0, a => movi r, 0\" */\n CASE_OP_32_64(shl):\n CASE_OP_32_64(shr):\n CASE_OP_32_64(sar):\n CASE_OP_32_64(rotl):\n CASE_OP_32_64(rotr):\n if (temps[args[1]].state == TCG_TEMP_CONST\n && temps[args[1]].val == 0) {\n /* Simplify expression for \"op r, a, 0 => mov r, a\" cases */\n CASE_OP_32_64(add):\n CASE_OP_32_64(shl):\n CASE_OP_32_64(shr):\n CASE_OP_32_64(sar):\n CASE_OP_32_64(rotl):\n CASE_OP_32_64(rotr):\n CASE_OP_32_64(or):\n if (temps[args[1]].state == TCG_TEMP_CONST) {\n /* Proceed with possible constant folding. */\n if (temps[args[2]].state == TCG_TEMP_CONST\n && temps[args[2]].val == 0) {\n if (temps_are_copies(args[0], args[1])) {\n gen_opc_buf[op_index] = INDEX_op_nop;\n } else {\n gen_opc_buf[op_index] = op_to_mov(op);\n tcg_opt_gen_mov(s, gen_args, args[0], args[1]);\n /* Simplify expression for \"op r, a, 0 => movi r, 0\" cases */\n CASE_OP_32_64(and):\n CASE_OP_32_64(mul):\n if ((temps[args[2]].state == TCG_TEMP_CONST\n && temps[args[2]].val == 0)) {\n /* Simplify expression for \"op r, a, a => mov r, a\" cases */\n CASE_OP_32_64(or):\n CASE_OP_32_64(and):\n if (temps_are_copies(args[0], args[1])) {\n gen_opc_buf[op_index] = INDEX_op_nop;\n } else {\n gen_opc_buf[op_index] = op_to_mov(op);\n tcg_opt_gen_mov(s, gen_args, args[0], args[1]);\n /* Propagate constants through copy operations and do constant\n folding. Constants will be substituted to arguments by register\n allocator where needed and possible. Also detect copies. */\n CASE_OP_32_64(mov):\n if (temps_are_copies(args[0], args[1])) {\n args += 2;\n gen_opc_buf[op_index] = INDEX_op_nop;\n if (temps[args[1]].state != TCG_TEMP_CONST) {\n tcg_opt_gen_mov(s, gen_args, args[0], args[1]);\n args += 2;\n /* Source argument is constant. Rewrite the operation and\n let movi case handle it. */\n op = op_to_movi(op);\n gen_opc_buf[op_index] = op;\n args[1] = temps[args[1]].val;\n /* fallthrough */\n CASE_OP_32_64(movi):\n tcg_opt_gen_movi(gen_args, args[0], args[1]);\n args += 2;\n CASE_OP_32_64(not):\n CASE_OP_32_64(neg):\n CASE_OP_32_64(ext8s):\n CASE_OP_32_64(ext8u):\n CASE_OP_32_64(ext16s):\n CASE_OP_32_64(ext16u):\n case INDEX_op_ext32s_i64:\n case INDEX_op_ext32u_i64:\n if (temps[args[1]].state == TCG_TEMP_CONST) {\n tmp = do_constant_folding(op, temps[args[1]].val, 0);\n tcg_opt_gen_movi(gen_args, args[0], tmp);\n } else {\n reset_temp(args[0]);\n gen_args[0] = args[0];\n gen_args[1] = args[1];\n args += 2;\n CASE_OP_32_64(add):\n CASE_OP_32_64(mul):\n CASE_OP_32_64(or):\n CASE_OP_32_64(and):\n CASE_OP_32_64(shl):\n CASE_OP_32_64(shr):\n CASE_OP_32_64(sar):\n CASE_OP_32_64(rotl):\n CASE_OP_32_64(rotr):\n CASE_OP_32_64(andc):\n CASE_OP_32_64(orc):\n CASE_OP_32_64(eqv):\n CASE_OP_32_64(nand):\n CASE_OP_32_64(nor):\n if (temps[args[1]].state == TCG_TEMP_CONST\n && temps[args[2]].state == TCG_TEMP_CONST) {\n tmp = do_constant_folding(op, temps[args[1]].val,\n temps[args[2]].val);\n tcg_opt_gen_movi(gen_args, args[0], tmp);\n } else {\n reset_temp(args[0]);\n gen_args[0] = args[0];\n gen_args[1] = args[1];\n gen_args[2] = args[2];\n gen_args += 3;\n CASE_OP_32_64(setcond):\n if (temps[args[1]].state == TCG_TEMP_CONST\n && temps[args[2]].state == TCG_TEMP_CONST) {\n tmp = do_constant_folding_cond(op, temps[args[1]].val,\n temps[args[2]].val, args[3]);\n tcg_opt_gen_movi(gen_args, args[0], tmp);\n } else {\n reset_temp(args[0]);\n gen_args[0] = args[0];\n gen_args[1] = args[1];\n gen_args[2] = args[2];\n gen_args[3] = args[3];\n gen_args += 4;\n args += 4;\n CASE_OP_32_64(brcond):\n if (temps[args[0]].state == TCG_TEMP_CONST\n && temps[args[1]].state == TCG_TEMP_CONST) {\n if (do_constant_folding_cond(op, temps[args[0]].val,\n temps[args[1]].val, args[2])) {\n memset(temps, 0, nb_temps * sizeof(struct tcg_temp_info));\n gen_opc_buf[op_index] = INDEX_op_br;\n gen_args[0] = args[3];\n gen_args += 1;\n } else {\n gen_opc_buf[op_index] = INDEX_op_nop;\n } else {\n memset(temps, 0, nb_temps * sizeof(struct tcg_temp_info));\n reset_temp(args[0]);\n gen_args[0] = args[0];\n gen_args[1] = args[1];\n gen_args[2] = args[2];\n gen_args[3] = args[3];\n gen_args += 4;\n args += 4;\n CASE_OP_32_64(movcond):\n if (temps[args[1]].state == TCG_TEMP_CONST\n && temps[args[2]].state == TCG_TEMP_CONST) {\n tmp = do_constant_folding_cond(op, temps[args[1]].val,\n temps[args[2]].val, args[5]);\n if (temps_are_copies(args[0], args[4-tmp])) {\n gen_opc_buf[op_index] = INDEX_op_nop;\n } else if (temps[args[4-tmp]].state == TCG_TEMP_CONST) {\n tcg_opt_gen_movi(gen_args, args[0], temps[args[4-tmp]].val);\n } else {\n gen_opc_buf[op_index] = op_to_mov(op);\n tcg_opt_gen_mov(s, gen_args, args[0], args[4-tmp]);\n } else {\n reset_temp(args[0]);\n gen_args[0] = args[0];\n gen_args[1] = args[1];\n gen_args[2] = args[2];\n gen_args[3] = args[3];\n gen_args[4] = args[4];\n gen_args[5] = args[5];\n gen_args += 6;\n args += 6;\n case INDEX_op_call:\n nb_call_args = (args[0] >> 16) + (args[0] & 0xffff);\n if (!(args[nb_call_args + 1] & (TCG_CALL_CONST | TCG_CALL_PURE))) {\n for (i = 0; i < nb_globals; i++) {\n reset_temp(i);\n for (i = 0; i < (args[0] >> 16); i++) {\n reset_temp(args[i + 1]);\n i = nb_call_args + 3;\n while (i) {\n *gen_args = *args;\n args++;\n gen_args++;\n i--;\n /* Default case: we do know nothing about operation so no\n propagation is done. We trash everything if the operation\n is the end of a basic block, otherwise we only trash the\n output args. */\n if (def->flags & TCG_OPF_BB_END) {\n memset(temps, 0, nb_temps * sizeof(struct tcg_temp_info));\n } else {\n for (i = 0; i < def->nb_oargs; i++) {\n reset_temp(args[i]);\n for (i = 0; i < def->nb_args; i++) {\n gen_args[i] = args[i];\n args += def->nb_args;\n gen_args += def->nb_args;\n return gen_args;", + "output": "1", + "index": 15388 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "void handle_vm86_fault(CPUX86State *env)\n\n{\n\n TaskState *ts = env->opaque;\n\n uint8_t *csp, *pc, *ssp;\n\n unsigned int ip, sp, newflags, newip, newcs, opcode, intno;\n\n int data32, pref_done;\n\n\n\n csp = (uint8_t *)(env->segs[R_CS] << 4);\n\n ip = env->eip & 0xffff;\n\n pc = csp + ip;\n\n \n\n ssp = (uint8_t *)(env->segs[R_SS] << 4);\n\n sp = env->regs[R_ESP] & 0xffff;\n\n\n\n#if defined(DEBUG_VM86)\n\n fprintf(logfile, \"VM86 exception %04x:%08x %02x %02x\\n\",\n\n env->segs[R_CS], env->eip, pc[0], pc[1]);\n\n#endif\n\n\n\n data32 = 0;\n\n pref_done = 0;\n\n do {\n\n opcode = csp[ip];\n\n ADD16(ip, 1);\n\n switch (opcode) {\n\n case 0x66: /* 32-bit data */ data32=1; break;\n\n case 0x67: /* 32-bit address */ break;\n\n case 0x2e: /* CS */ break;\n\n case 0x3e: /* DS */ break;\n\n case 0x26: /* ES */ break;\n\n case 0x36: /* SS */ break;\n\n case 0x65: /* GS */ break;\n\n case 0x64: /* FS */ break;\n\n case 0xf2: /* repnz */\t break;\n\n case 0xf3: /* rep */ break;\n\n default: pref_done = 1;\n\n }\n\n } while (!pref_done);\n\n\n\n /* VM86 mode */\n\n switch(opcode) {\n\n case 0x9c: /* pushf */\n\n ADD16(env->eip, 2);\n\n if (data32) {\n\n vm_putl(ssp, sp - 4, get_vflags(env));\n\n ADD16(env->regs[R_ESP], -4);\n\n } else {\n\n vm_putw(ssp, sp - 2, get_vflags(env));\n\n ADD16(env->regs[R_ESP], -2);\n\n }\n\n env->eip = ip;\n\n VM86_FAULT_RETURN;\n\n\n\n case 0x9d: /* popf */\n\n if (data32) {\n\n newflags = vm_getl(ssp, sp);\n\n ADD16(env->regs[R_ESP], 4);\n\n } else {\n\n newflags = vm_getw(ssp, sp);\n\n ADD16(env->regs[R_ESP], 2);\n\n }\n\n env->eip = ip;\n\n CHECK_IF_IN_TRAP();\n\n if (data32) {\n\n if (set_vflags_long(newflags, env))\n\n return;\n\n } else {\n\n if (set_vflags_short(newflags, env))\n\n return;\n\n }\n\n VM86_FAULT_RETURN;\n\n\n\n case 0xcd: /* int */\n\n intno = csp[ip];\n\n ADD16(ip, 1);\n\n env->eip = ip;\n\n if (ts->vm86plus.vm86plus.flags & TARGET_vm86dbg_active) {\n\n if ( (ts->vm86plus.vm86plus.vm86dbg_intxxtab[intno >> 3] >> \n\n (intno &7)) & 1) {\n\n return_to_32bit(env, TARGET_VM86_INTx + (intno << 8));\n\n return;\n\n }\n\n }\n\n do_int(env, intno);\n\n break;\n\n\n\n case 0xcf: /* iret */\n\n if (data32) {\n\n newip = vm_getl(ssp, sp) & 0xffff;\n\n newcs = vm_getl(ssp, sp + 4) & 0xffff;\n\n newflags = vm_getl(ssp, sp + 8);\n\n ADD16(env->regs[R_ESP], 12);\n\n } else {\n\n newip = vm_getw(ssp, sp);\n\n newcs = vm_getw(ssp, sp + 2);\n\n newflags = vm_getw(ssp, sp + 4);\n\n ADD16(env->regs[R_ESP], 6);\n\n }\n\n env->eip = newip;\n\n cpu_x86_load_seg(env, R_CS, newcs);\n\n CHECK_IF_IN_TRAP();\n\n if (data32) {\n\n if (set_vflags_long(newflags, env))\n\n return;\n\n } else {\n\n if (set_vflags_short(newflags, env))\n\n return;\n\n }\n\n VM86_FAULT_RETURN;\n\n \n\n case 0xfa: /* cli */\n\n env->eip = ip;\n\n clear_IF(env);\n\n VM86_FAULT_RETURN;\n\n \n\n case 0xfb: /* sti */\n\n env->eip = ip;\n\n if (set_IF(env))\n\n return;\n\n VM86_FAULT_RETURN;\n\n\n\n default:\n\n /* real VM86 GPF exception */\n\n return_to_32bit(env, TARGET_VM86_UNKNOWN);\n\n break;\n\n }\n\n}\n", + "output": "0", + "index": 21544 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int hls_coding_unit(HEVCContext *s, int x0, int y0, int log2_cb_size)\n\n{\n\n int cb_size = 1 << log2_cb_size;\n\n HEVCLocalContext *lc = &s->HEVClc;\n\n int log2_min_cb_size = s->sps->log2_min_cb_size;\n\n int length = cb_size >> log2_min_cb_size;\n\n int min_cb_width = s->sps->min_cb_width;\n\n int x_cb = x0 >> log2_min_cb_size;\n\n int y_cb = y0 >> log2_min_cb_size;\n\n int x, y;\n\n\n\n lc->cu.x = x0;\n\n lc->cu.y = y0;\n\n lc->cu.rqt_root_cbf = 1;\n\n lc->cu.pred_mode = MODE_INTRA;\n\n lc->cu.part_mode = PART_2Nx2N;\n\n lc->cu.intra_split_flag = 0;\n\n lc->cu.pcm_flag = 0;\n\n\n\n SAMPLE_CTB(s->skip_flag, x_cb, y_cb) = 0;\n\n for (x = 0; x < 4; x++)\n\n lc->pu.intra_pred_mode[x] = 1;\n\n if (s->pps->transquant_bypass_enable_flag) {\n\n lc->cu.cu_transquant_bypass_flag = ff_hevc_cu_transquant_bypass_flag_decode(s);\n\n if (lc->cu.cu_transquant_bypass_flag)\n\n set_deblocking_bypass(s, x0, y0, log2_cb_size);\n\n } else\n\n lc->cu.cu_transquant_bypass_flag = 0;\n\n\n\n if (s->sh.slice_type != I_SLICE) {\n\n uint8_t skip_flag = ff_hevc_skip_flag_decode(s, x0, y0, x_cb, y_cb);\n\n\n\n lc->cu.pred_mode = MODE_SKIP;\n\n x = y_cb * min_cb_width + x_cb;\n\n for (y = 0; y < length; y++) {\n\n memset(&s->skip_flag[x], skip_flag, length);\n\n x += min_cb_width;\n\n }\n\n lc->cu.pred_mode = skip_flag ? MODE_SKIP : MODE_INTER;\n\n }\n\n\n\n if (SAMPLE_CTB(s->skip_flag, x_cb, y_cb)) {\n\n hls_prediction_unit(s, x0, y0, cb_size, cb_size, log2_cb_size, 0);\n\n intra_prediction_unit_default_value(s, x0, y0, log2_cb_size);\n\n\n\n if (!s->sh.disable_deblocking_filter_flag)\n\n ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size,\n\n lc->slice_or_tiles_up_boundary,\n\n lc->slice_or_tiles_left_boundary);\n\n } else {\n\n if (s->sh.slice_type != I_SLICE)\n\n lc->cu.pred_mode = ff_hevc_pred_mode_decode(s);\n\n if (lc->cu.pred_mode != MODE_INTRA ||\n\n log2_cb_size == s->sps->log2_min_cb_size) {\n\n lc->cu.part_mode = ff_hevc_part_mode_decode(s, log2_cb_size);\n\n lc->cu.intra_split_flag = lc->cu.part_mode == PART_NxN &&\n\n lc->cu.pred_mode == MODE_INTRA;\n\n }\n\n\n\n if (lc->cu.pred_mode == MODE_INTRA) {\n\n if (lc->cu.part_mode == PART_2Nx2N && s->sps->pcm_enabled_flag &&\n\n log2_cb_size >= s->sps->pcm.log2_min_pcm_cb_size &&\n\n log2_cb_size <= s->sps->pcm.log2_max_pcm_cb_size) {\n\n lc->cu.pcm_flag = ff_hevc_pcm_flag_decode(s);\n\n }\n\n if (lc->cu.pcm_flag) {\n\n int ret;\n\n intra_prediction_unit_default_value(s, x0, y0, log2_cb_size);\n\n ret = hls_pcm_sample(s, x0, y0, log2_cb_size);\n\n if (s->sps->pcm.loop_filter_disable_flag)\n\n set_deblocking_bypass(s, x0, y0, log2_cb_size);\n\n\n\n if (ret < 0)\n\n return ret;\n\n } else {\n\n intra_prediction_unit(s, x0, y0, log2_cb_size);\n\n }\n\n } else {\n\n intra_prediction_unit_default_value(s, x0, y0, log2_cb_size);\n\n switch (lc->cu.part_mode) {\n\n case PART_2Nx2N:\n\n hls_prediction_unit(s, x0, y0, cb_size, cb_size, log2_cb_size, 0);\n\n break;\n\n case PART_2NxN:\n\n hls_prediction_unit(s, x0, y0, cb_size, cb_size / 2, log2_cb_size, 0);\n\n hls_prediction_unit(s, x0, y0 + cb_size / 2, cb_size, cb_size / 2, log2_cb_size, 1);\n\n break;\n\n case PART_Nx2N:\n\n hls_prediction_unit(s, x0, y0, cb_size / 2, cb_size, log2_cb_size, 0);\n\n hls_prediction_unit(s, x0 + cb_size / 2, y0, cb_size / 2, cb_size, log2_cb_size, 1);\n\n break;\n\n case PART_2NxnU:\n\n hls_prediction_unit(s, x0, y0, cb_size, cb_size / 4, log2_cb_size, 0);\n\n hls_prediction_unit(s, x0, y0 + cb_size / 4, cb_size, cb_size * 3 / 4, log2_cb_size, 1);\n\n break;\n\n case PART_2NxnD:\n\n hls_prediction_unit(s, x0, y0, cb_size, cb_size * 3 / 4, log2_cb_size, 0);\n\n hls_prediction_unit(s, x0, y0 + cb_size * 3 / 4, cb_size, cb_size / 4, log2_cb_size, 1);\n\n break;\n\n case PART_nLx2N:\n\n hls_prediction_unit(s, x0, y0, cb_size / 4, cb_size, log2_cb_size, 0);\n\n hls_prediction_unit(s, x0 + cb_size / 4, y0, cb_size * 3 / 4, cb_size, log2_cb_size, 1);\n\n break;\n\n case PART_nRx2N:\n\n hls_prediction_unit(s, x0, y0, cb_size * 3 / 4, cb_size, log2_cb_size, 0);\n\n hls_prediction_unit(s, x0 + cb_size * 3 / 4, y0, cb_size / 4, cb_size, log2_cb_size, 1);\n\n break;\n\n case PART_NxN:\n\n hls_prediction_unit(s, x0, y0, cb_size / 2, cb_size / 2, log2_cb_size, 0);\n\n hls_prediction_unit(s, x0 + cb_size / 2, y0, cb_size / 2, cb_size / 2, log2_cb_size, 1);\n\n hls_prediction_unit(s, x0, y0 + cb_size / 2, cb_size / 2, cb_size / 2, log2_cb_size, 2);\n\n hls_prediction_unit(s, x0 + cb_size / 2, y0 + cb_size / 2, cb_size / 2, cb_size / 2, log2_cb_size, 3);\n\n break;\n\n }\n\n }\n\n\n\n if (!lc->cu.pcm_flag) {\n\n if (lc->cu.pred_mode != MODE_INTRA &&\n\n !(lc->cu.part_mode == PART_2Nx2N && lc->pu.merge_flag)) {\n\n lc->cu.rqt_root_cbf = ff_hevc_no_residual_syntax_flag_decode(s);\n\n }\n\n if (lc->cu.rqt_root_cbf) {\n\n lc->cu.max_trafo_depth = lc->cu.pred_mode == MODE_INTRA ?\n\n s->sps->max_transform_hierarchy_depth_intra + lc->cu.intra_split_flag :\n\n s->sps->max_transform_hierarchy_depth_inter;\n\n hls_transform_tree(s, x0, y0, x0, y0, x0, y0, log2_cb_size,\n\n log2_cb_size, 0, 0);\n\n } else {\n\n if (!s->sh.disable_deblocking_filter_flag)\n\n ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size,\n\n lc->slice_or_tiles_up_boundary,\n\n lc->slice_or_tiles_left_boundary);\n\n }\n\n }\n\n }\n\n\n\n if (s->pps->cu_qp_delta_enabled_flag && lc->tu.is_cu_qp_delta_coded == 0)\n\n ff_hevc_set_qPy(s, x0, y0, x0, y0, log2_cb_size);\n\n\n\n x = y_cb * min_cb_width + x_cb;\n\n for (y = 0; y < length; y++) {\n\n memset(&s->qp_y_tab[x], lc->qp_y, length);\n\n x += min_cb_width;\n\n }\n\n\n\n set_ct_depth(s, x0, y0, log2_cb_size, lc->ct.depth);\n\n\n\n return 0;\n\n}\n", + "output": "0", + "index": 20133 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int qxl_init_common(PCIQXLDevice *qxl)\n\n{\n\n uint8_t* config = qxl->pci.config;\n\n uint32_t pci_device_rev;\n\n uint32_t io_size;\n\n\n\n qxl->mode = QXL_MODE_UNDEFINED;\n\n qxl->generation = 1;\n\n qxl->num_memslots = NUM_MEMSLOTS;\n\n qemu_mutex_init(&qxl->track_lock);\n\n qemu_mutex_init(&qxl->async_lock);\n\n qxl->current_async = QXL_UNDEFINED_IO;\n\n qxl->guest_bug = 0;\n\n\n\n switch (qxl->revision) {\n\n case 1: /* spice 0.4 -- qxl-1 */\n\n pci_device_rev = QXL_REVISION_STABLE_V04;\n\n io_size = 8;\n\n break;\n\n case 2: /* spice 0.6 -- qxl-2 */\n\n pci_device_rev = QXL_REVISION_STABLE_V06;\n\n io_size = 16;\n\n break;\n\n case 3: /* qxl-3 */\n\n pci_device_rev = QXL_REVISION_STABLE_V10;\n\n io_size = 32; /* PCI region size must be pow2 */\n\n break;\n\n/* 0x000b01 == 0.11.1 */\n\n#if SPICE_SERVER_VERSION >= 0x000b01 && \\\n\n defined(CONFIG_QXL_IO_MONITORS_CONFIG_ASYNC)\n\n case 4: /* qxl-4 */\n\n pci_device_rev = QXL_REVISION_STABLE_V12;\n\n io_size = msb_mask(QXL_IO_RANGE_SIZE * 2 - 1);\n\n break;\n\n#endif\n\n default:\n\n error_report(\"Invalid revision %d for qxl device (max %d)\",\n\n qxl->revision, QXL_DEFAULT_REVISION);\n\n return -1;\n\n }\n\n\n\n pci_set_byte(&config[PCI_REVISION_ID], pci_device_rev);\n\n pci_set_byte(&config[PCI_INTERRUPT_PIN], 1);\n\n\n\n qxl->rom_size = qxl_rom_size();\n\n memory_region_init_ram(&qxl->rom_bar, \"qxl.vrom\", qxl->rom_size);\n\n vmstate_register_ram(&qxl->rom_bar, &qxl->pci.qdev);\n\n init_qxl_rom(qxl);\n\n init_qxl_ram(qxl);\n\n\n\n qxl->guest_surfaces.cmds = g_new0(QXLPHYSICAL, qxl->ssd.num_surfaces);\n\n memory_region_init_ram(&qxl->vram_bar, \"qxl.vram\", qxl->vram_size);\n\n vmstate_register_ram(&qxl->vram_bar, &qxl->pci.qdev);\n\n memory_region_init_alias(&qxl->vram32_bar, \"qxl.vram32\", &qxl->vram_bar,\n\n 0, qxl->vram32_size);\n\n\n\n memory_region_init_io(&qxl->io_bar, &qxl_io_ops, qxl,\n\n \"qxl-ioports\", io_size);\n\n if (qxl->id == 0) {\n\n vga_dirty_log_start(&qxl->vga);\n\n }\n\n memory_region_set_flush_coalesced(&qxl->io_bar);\n\n\n\n\n\n pci_register_bar(&qxl->pci, QXL_IO_RANGE_INDEX,\n\n PCI_BASE_ADDRESS_SPACE_IO, &qxl->io_bar);\n\n\n\n pci_register_bar(&qxl->pci, QXL_ROM_RANGE_INDEX,\n\n PCI_BASE_ADDRESS_SPACE_MEMORY, &qxl->rom_bar);\n\n\n\n pci_register_bar(&qxl->pci, QXL_RAM_RANGE_INDEX,\n\n PCI_BASE_ADDRESS_SPACE_MEMORY, &qxl->vga.vram);\n\n\n\n pci_register_bar(&qxl->pci, QXL_VRAM_RANGE_INDEX,\n\n PCI_BASE_ADDRESS_SPACE_MEMORY, &qxl->vram32_bar);\n\n\n\n if (qxl->vram32_size < qxl->vram_size) {\n\n /*\n\n * Make the 64bit vram bar show up only in case it is\n\n * configured to be larger than the 32bit vram bar.\n\n */\n\n pci_register_bar(&qxl->pci, QXL_VRAM64_RANGE_INDEX,\n\n PCI_BASE_ADDRESS_SPACE_MEMORY |\n\n PCI_BASE_ADDRESS_MEM_TYPE_64 |\n\n PCI_BASE_ADDRESS_MEM_PREFETCH,\n\n &qxl->vram_bar);\n\n }\n\n\n\n /* print pci bar details */\n\n dprint(qxl, 1, \"ram/%s: %d MB [region 0]\\n\",\n\n qxl->id == 0 ? \"pri\" : \"sec\",\n\n qxl->vga.vram_size / (1024*1024));\n\n dprint(qxl, 1, \"vram/32: %d MB [region 1]\\n\",\n\n qxl->vram32_size / (1024*1024));\n\n dprint(qxl, 1, \"vram/64: %d MB %s\\n\",\n\n qxl->vram_size / (1024*1024),\n\n qxl->vram32_size < qxl->vram_size ? \"[region 4]\" : \"[unmapped]\");\n\n\n\n qxl->ssd.qxl.base.sif = &qxl_interface.base;\n\n qxl->ssd.qxl.id = qxl->id;\n\n qemu_spice_add_interface(&qxl->ssd.qxl.base);\n\n qemu_add_vm_change_state_handler(qxl_vm_change_state_handler, qxl);\n\n\n\n init_pipe_signaling(qxl);\n\n qxl_reset_state(qxl);\n\n\n\n qxl->update_area_bh = qemu_bh_new(qxl_render_update_area_bh, qxl);\n\n\n\n return 0;\n\n}\n", + "output": "1", + "index": 19980 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "build_dsdt(GArray *table_data, GArray *linker,\n AcpiPmInfo *pm, AcpiMiscInfo *misc,\n PcPciInfo *pci, MachineState *machine)\n{\n CrsRangeEntry *entry;\n Aml *dsdt, *sb_scope, *scope, *dev, *method, *field, *pkg, *crs;\n GPtrArray *mem_ranges = g_ptr_array_new_with_free_func(crs_range_free);\n GPtrArray *io_ranges = g_ptr_array_new_with_free_func(crs_range_free);\n PCMachineState *pcms = PC_MACHINE(machine);\n uint32_t nr_mem = machine->ram_slots;\n int root_bus_limit = 0xFF;\n PCIBus *bus = NULL;\n int i;\n dsdt = init_aml_allocator();\n /* Reserve space for header */\n acpi_data_push(dsdt->buf, sizeof(AcpiTableHeader));\n build_dbg_aml(dsdt);\n if (misc->is_piix4) {\n sb_scope = aml_scope(\"_SB\");\n dev = aml_device(\"PCI0\");\n aml_append(dev, aml_name_decl(\"_HID\", aml_eisaid(\"PNP0A03\")));\n aml_append(dev, aml_name_decl(\"_ADR\", aml_int(0)));\n aml_append(dev, aml_name_decl(\"_UID\", aml_int(1)));\n aml_append(sb_scope, dev);\n aml_append(dsdt, sb_scope);\n build_hpet_aml(dsdt);\n build_piix4_pm(dsdt);\n build_piix4_isa_bridge(dsdt);\n build_isa_devices_aml(dsdt);\n build_piix4_pci_hotplug(dsdt);\n build_piix4_pci0_int(dsdt);\n } else {\n sb_scope = aml_scope(\"_SB\");\n aml_append(sb_scope,\n aml_operation_region(\"PCST\", AML_SYSTEM_IO, aml_int(0xae00), 0x0c));\n aml_append(sb_scope,\n aml_operation_region(\"PCSB\", AML_SYSTEM_IO, aml_int(0xae0c), 0x01));\n field = aml_field(\"PCSB\", AML_ANY_ACC, AML_NOLOCK, AML_WRITE_AS_ZEROS);\n aml_append(field, aml_named_field(\"PCIB\", 8));\n aml_append(sb_scope, field);\n aml_append(dsdt, sb_scope);\n sb_scope = aml_scope(\"_SB\");\n dev = aml_device(\"PCI0\");\n aml_append(dev, aml_name_decl(\"_HID\", aml_eisaid(\"PNP0A08\")));\n aml_append(dev, aml_name_decl(\"_CID\", aml_eisaid(\"PNP0A03\")));\n aml_append(dev, aml_name_decl(\"_ADR\", aml_int(0)));\n aml_append(dev, aml_name_decl(\"_UID\", aml_int(1)));\n aml_append(dev, aml_name_decl(\"SUPP\", aml_int(0)));\n aml_append(dev, aml_name_decl(\"CTRL\", aml_int(0)));\n aml_append(dev, build_q35_osc_method());\n aml_append(sb_scope, dev);\n aml_append(dsdt, sb_scope);\n build_hpet_aml(dsdt);\n build_q35_isa_bridge(dsdt);\n build_isa_devices_aml(dsdt);\n build_q35_pci0_int(dsdt);\n build_cpu_hotplug_aml(dsdt);\n build_memory_hotplug_aml(dsdt, nr_mem, pm->mem_hp_io_base,\n pm->mem_hp_io_len);\n scope = aml_scope(\"_GPE\");\n {\n aml_append(scope, aml_name_decl(\"_HID\", aml_string(\"ACPI0006\")));\n aml_append(scope, aml_method(\"_L00\", 0, AML_NOTSERIALIZED));\n if (misc->is_piix4) {\n method = aml_method(\"_E01\", 0, AML_NOTSERIALIZED);\n aml_append(method,\n aml_acquire(aml_name(\"\\\\_SB.PCI0.BLCK\"), 0xFFFF));\n aml_append(method, aml_call0(\"\\\\_SB.PCI0.PCNT\"));\n aml_append(method, aml_release(aml_name(\"\\\\_SB.PCI0.BLCK\")));\n aml_append(scope, method);\n } else {\n aml_append(scope, aml_method(\"_L01\", 0, AML_NOTSERIALIZED));\n method = aml_method(\"_E02\", 0, AML_NOTSERIALIZED);\n aml_append(method, aml_call0(\"\\\\_SB.\" CPU_SCAN_METHOD));\n aml_append(scope, method);\n method = aml_method(\"_E03\", 0, AML_NOTSERIALIZED);\n aml_append(method, aml_call0(MEMORY_HOTPLUG_HANDLER_PATH));\n aml_append(scope, method);\n aml_append(scope, aml_method(\"_L04\", 0, AML_NOTSERIALIZED));\n aml_append(scope, aml_method(\"_L05\", 0, AML_NOTSERIALIZED));\n aml_append(scope, aml_method(\"_L06\", 0, AML_NOTSERIALIZED));\n aml_append(scope, aml_method(\"_L07\", 0, AML_NOTSERIALIZED));\n aml_append(scope, aml_method(\"_L08\", 0, AML_NOTSERIALIZED));\n aml_append(scope, aml_method(\"_L09\", 0, AML_NOTSERIALIZED));\n aml_append(scope, aml_method(\"_L0A\", 0, AML_NOTSERIALIZED));\n aml_append(scope, aml_method(\"_L0B\", 0, AML_NOTSERIALIZED));\n aml_append(scope, aml_method(\"_L0C\", 0, AML_NOTSERIALIZED));\n aml_append(scope, aml_method(\"_L0D\", 0, AML_NOTSERIALIZED));\n aml_append(scope, aml_method(\"_L0E\", 0, AML_NOTSERIALIZED));\n aml_append(scope, aml_method(\"_L0F\", 0, AML_NOTSERIALIZED));\n aml_append(dsdt, scope);\n bus = PC_MACHINE(machine)->bus;\n if (bus) {\n QLIST_FOREACH(bus, &bus->child, sibling) {\n uint8_t bus_num = pci_bus_num(bus);\n uint8_t numa_node = pci_bus_numa_node(bus);\n /* look only for expander root buses */\n if (!pci_bus_is_root(bus)) {\n continue;\n if (bus_num < root_bus_limit) {\n root_bus_limit = bus_num - 1;\n scope = aml_scope(\"\\\\_SB\");\n dev = aml_device(\"PC%.02X\", bus_num);\n aml_append(dev, aml_name_decl(\"_UID\", aml_int(bus_num)));\n aml_append(dev, aml_name_decl(\"_HID\", aml_eisaid(\"PNP0A03\")));\n aml_append(dev, aml_name_decl(\"_BBN\", aml_int(bus_num)));\n if (numa_node != NUMA_NODE_UNASSIGNED) {\n aml_append(dev, aml_name_decl(\"_PXM\", aml_int(numa_node)));\n aml_append(dev, build_prt(false));\n crs = build_crs(PCI_HOST_BRIDGE(BUS(bus)->parent),\n io_ranges, mem_ranges);\n aml_append(dev, aml_name_decl(\"_CRS\", crs));\n aml_append(scope, dev);\n aml_append(dsdt, scope);\n scope = aml_scope(\"\\\\_SB.PCI0\");\n /* build PCI0._CRS */\n crs = aml_resource_template();\n aml_append(crs,\n aml_word_bus_number(AML_MIN_FIXED, AML_MAX_FIXED, AML_POS_DECODE,\n 0x0000, 0x0, root_bus_limit,\n 0x0000, root_bus_limit + 1));\n aml_append(crs, aml_io(AML_DECODE16, 0x0CF8, 0x0CF8, 0x01, 0x08));\n aml_append(crs,\n aml_word_io(AML_MIN_FIXED, AML_MAX_FIXED,\n AML_POS_DECODE, AML_ENTIRE_RANGE,\n 0x0000, 0x0000, 0x0CF7, 0x0000, 0x0CF8));\n crs_replace_with_free_ranges(io_ranges, 0x0D00, 0xFFFF);\n for (i = 0; i < io_ranges->len; i++) {\n entry = g_ptr_array_index(io_ranges, i);\n aml_append(crs,\n aml_word_io(AML_MIN_FIXED, AML_MAX_FIXED,\n AML_POS_DECODE, AML_ENTIRE_RANGE,\n 0x0000, entry->base, entry->limit,\n 0x0000, entry->limit - entry->base + 1));\n aml_append(crs,\n aml_dword_memory(AML_POS_DECODE, AML_MIN_FIXED, AML_MAX_FIXED,\n AML_CACHEABLE, AML_READ_WRITE,\n 0, 0x000A0000, 0x000BFFFF, 0, 0x00020000));\n crs_replace_with_free_ranges(mem_ranges, pci->w32.begin, pci->w32.end - 1);\n for (i = 0; i < mem_ranges->len; i++) {\n entry = g_ptr_array_index(mem_ranges, i);\n aml_append(crs,\n aml_dword_memory(AML_POS_DECODE, AML_MIN_FIXED, AML_MAX_FIXED,\n AML_NON_CACHEABLE, AML_READ_WRITE,\n 0, entry->base, entry->limit,\n 0, entry->limit - entry->base + 1));\n if (pci->w64.begin) {\n aml_append(crs,\n aml_qword_memory(AML_POS_DECODE, AML_MIN_FIXED, AML_MAX_FIXED,\n AML_CACHEABLE, AML_READ_WRITE,\n 0, pci->w64.begin, pci->w64.end - 1, 0,\n pci->w64.end - pci->w64.begin));\n aml_append(scope, aml_name_decl(\"_CRS\", crs));\n /* reserve GPE0 block resources */\n dev = aml_device(\"GPE0\");\n aml_append(dev, aml_name_decl(\"_HID\", aml_string(\"PNP0A06\")));\n aml_append(dev, aml_name_decl(\"_UID\", aml_string(\"GPE0 resources\")));\n /* device present, functioning, decoding, not shown in UI */\n aml_append(dev, aml_name_decl(\"_STA\", aml_int(0xB)));\n crs = aml_resource_template();\n aml_append(crs,\n aml_io(AML_DECODE16, pm->gpe0_blk, pm->gpe0_blk, 1, pm->gpe0_blk_len)\n );\n aml_append(dev, aml_name_decl(\"_CRS\", crs));\n aml_append(scope, dev);\n g_ptr_array_free(io_ranges, true);\n g_ptr_array_free(mem_ranges, true);\n /* reserve PCIHP resources */\n if (pm->pcihp_io_len) {\n dev = aml_device(\"PHPR\");\n aml_append(dev, aml_name_decl(\"_HID\", aml_string(\"PNP0A06\")));\n aml_append(dev,\n aml_name_decl(\"_UID\", aml_string(\"PCI Hotplug resources\")));\n /* device present, functioning, decoding, not shown in UI */\n aml_append(dev, aml_name_decl(\"_STA\", aml_int(0xB)));\n crs = aml_resource_template();\n aml_append(crs,\n aml_io(AML_DECODE16, pm->pcihp_io_base, pm->pcihp_io_base, 1,\n pm->pcihp_io_len)\n );\n aml_append(dev, aml_name_decl(\"_CRS\", crs));\n aml_append(scope, dev);\n aml_append(dsdt, scope);\n /* create S3_ / S4_ / S5_ packages if necessary */\n scope = aml_scope(\"\\\\\");\n if (!pm->s3_disabled) {\n pkg = aml_package(4);\n aml_append(pkg, aml_int(1)); /* PM1a_CNT.SLP_TYP */\n aml_append(pkg, aml_int(1)); /* PM1b_CNT.SLP_TYP, FIXME: not impl. */\n aml_append(pkg, aml_int(0)); /* reserved */\n aml_append(pkg, aml_int(0)); /* reserved */\n aml_append(scope, aml_name_decl(\"_S3\", pkg));\n if (!pm->s4_disabled) {\n pkg = aml_package(4);\n aml_append(pkg, aml_int(pm->s4_val)); /* PM1a_CNT.SLP_TYP */\n /* PM1b_CNT.SLP_TYP, FIXME: not impl. */\n aml_append(pkg, aml_int(pm->s4_val));\n aml_append(pkg, aml_int(0)); /* reserved */\n aml_append(pkg, aml_int(0)); /* reserved */\n aml_append(scope, aml_name_decl(\"_S4\", pkg));\n pkg = aml_package(4);\n aml_append(pkg, aml_int(0)); /* PM1a_CNT.SLP_TYP */\n aml_append(pkg, aml_int(0)); /* PM1b_CNT.SLP_TYP not impl. */\n aml_append(pkg, aml_int(0)); /* reserved */\n aml_append(pkg, aml_int(0)); /* reserved */\n aml_append(scope, aml_name_decl(\"_S5\", pkg));\n aml_append(dsdt, scope);\n /* create fw_cfg node, unconditionally */\n {\n /* when using port i/o, the 8-bit data register *always* overlaps\n * with half of the 16-bit control register. Hence, the total size\n * of the i/o region used is FW_CFG_CTL_SIZE; when using DMA, the\n * DMA control register is located at FW_CFG_DMA_IO_BASE + 4 */\n uint8_t io_size = object_property_get_bool(OBJECT(pcms->fw_cfg),\n \"dma_enabled\", NULL) ?\n ROUND_UP(FW_CFG_CTL_SIZE, 4) + sizeof(dma_addr_t) :\n FW_CFG_CTL_SIZE;\n scope = aml_scope(\"\\\\_SB.PCI0\");\n dev = aml_device(\"FWCF\");\n aml_append(dev, aml_name_decl(\"_HID\", aml_string(\"QEMU0002\")));\n /* device present, functioning, decoding, not shown in UI */\n aml_append(dev, aml_name_decl(\"_STA\", aml_int(0xB)));\n crs = aml_resource_template();\n aml_append(crs,\n aml_io(AML_DECODE16, FW_CFG_IO_BASE, FW_CFG_IO_BASE, 0x01, io_size)\n );\n aml_append(dev, aml_name_decl(\"_CRS\", crs));\n aml_append(scope, dev);\n aml_append(dsdt, scope);\n if (misc->applesmc_io_base) {\n scope = aml_scope(\"\\\\_SB.PCI0.ISA\");\n dev = aml_device(\"SMC\");\n aml_append(dev, aml_name_decl(\"_HID\", aml_eisaid(\"APP0001\")));\n /* device present, functioning, decoding, not shown in UI */\n aml_append(dev, aml_name_decl(\"_STA\", aml_int(0xB)));\n crs = aml_resource_template();\n aml_append(crs,\n aml_io(AML_DECODE16, misc->applesmc_io_base, misc->applesmc_io_base,\n 0x01, APPLESMC_MAX_DATA_LENGTH)\n );\n aml_append(crs, aml_irq_no_flags(6));\n aml_append(dev, aml_name_decl(\"_CRS\", crs));\n aml_append(scope, dev);\n aml_append(dsdt, scope);\n if (misc->pvpanic_port) {\n scope = aml_scope(\"\\\\_SB.PCI0.ISA\");\n dev = aml_device(\"PEVT\");\n aml_append(dev, aml_name_decl(\"_HID\", aml_string(\"QEMU0001\")));\n crs = aml_resource_template();\n aml_append(crs,\n aml_io(AML_DECODE16, misc->pvpanic_port, misc->pvpanic_port, 1, 1)\n );\n aml_append(dev, aml_name_decl(\"_CRS\", crs));\n aml_append(dev, aml_operation_region(\"PEOR\", AML_SYSTEM_IO,\n aml_int(misc->pvpanic_port), 1));\n field = aml_field(\"PEOR\", AML_BYTE_ACC, AML_NOLOCK, AML_PRESERVE);\n aml_append(field, aml_named_field(\"PEPT\", 8));\n aml_append(dev, field);\n /* device present, functioning, decoding, shown in UI */\n aml_append(dev, aml_name_decl(\"_STA\", aml_int(0xF)));\n method = aml_method(\"RDPT\", 0, AML_NOTSERIALIZED);\n aml_append(method, aml_store(aml_name(\"PEPT\"), aml_local(0)));\n aml_append(method, aml_return(aml_local(0)));\n aml_append(dev, method);\n method = aml_method(\"WRPT\", 1, AML_NOTSERIALIZED);\n aml_append(method, aml_store(aml_arg(0), aml_name(\"PEPT\")));\n aml_append(dev, method);\n aml_append(scope, dev);\n aml_append(dsdt, scope);\n sb_scope = aml_scope(\"\\\\_SB\");\n {\n build_processor_devices(sb_scope, machine, pm);\n build_memory_devices(sb_scope, nr_mem, pm->mem_hp_io_base,\n pm->mem_hp_io_len);\n {\n Object *pci_host;\n PCIBus *bus = NULL;\n pci_host = acpi_get_i386_pci_host();\n if (pci_host) {\n bus = PCI_HOST_BRIDGE(pci_host)->bus;\n if (bus) {\n Aml *scope = aml_scope(\"PCI0\");\n /* Scan all PCI buses. Generate tables to support hotplug. */\n build_append_pci_bus_devices(scope, bus, pm->pcihp_bridge_en);\n dev = aml_device(\"ISA.TPM\");\n aml_append(dev, aml_name_decl(\"_HID\", aml_eisaid(\"PNP0C31\")));\n aml_append(dev, aml_name_decl(\"_STA\", aml_int(0xF)));\n crs = aml_resource_template();\n aml_append(crs, aml_irq_no_flags(TPM_TIS_IRQ));\n aml_append(dev, aml_name_decl(\"_CRS\", crs));\n aml_append(scope, dev);\n aml_append(sb_scope, scope);\n aml_append(dsdt, sb_scope);\n /* copy AML table into ACPI tables blob and patch header there */\n g_array_append_vals(table_data, dsdt->buf->data, dsdt->buf->len);\n build_header(linker, table_data,\n (void *)(table_data->data + table_data->len - dsdt->buf->len),\n \"DSDT\", dsdt->buf->len, 1, NULL, NULL);\n free_aml_allocator();", + "output": "1", + "index": 22973 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static bool get_vt_profile_level(AVCodecContext *avctx,\n\n CFStringRef *profile_level_val)\n\n{\n\n VTEncContext *vtctx = avctx->priv_data;\n\n int64_t profile = vtctx->profile;\n\n\n\n if (profile == H264_PROF_AUTO && vtctx->level) {\n\n //Need to pick a profile if level is not auto-selected.\n\n profile = vtctx->has_b_frames ? H264_PROF_MAIN : H264_PROF_BASELINE;\n\n }\n\n\n\n *profile_level_val = NULL;\n\n\n\n switch (profile) {\n\n case H264_PROF_AUTO:\n\n return true;\n\n\n\n case H264_PROF_BASELINE:\n\n switch (vtctx->level) {\n\n case 0: *profile_level_val = kVTProfileLevel_H264_Baseline_AutoLevel; break;\n\n case 13: *profile_level_val = kVTProfileLevel_H264_Baseline_1_3; break;\n\n case 30: *profile_level_val = kVTProfileLevel_H264_Baseline_3_0; break;\n\n case 31: *profile_level_val = kVTProfileLevel_H264_Baseline_3_1; break;\n\n case 32: *profile_level_val = kVTProfileLevel_H264_Baseline_3_2; break;\n\n case 40: *profile_level_val = kVTProfileLevel_H264_Baseline_4_0; break;\n\n case 41: *profile_level_val = kVTProfileLevel_H264_Baseline_4_1; break;\n\n case 42: *profile_level_val = kVTProfileLevel_H264_Baseline_4_2; break;\n\n case 50: *profile_level_val = kVTProfileLevel_H264_Baseline_5_0; break;\n\n case 51: *profile_level_val = kVTProfileLevel_H264_Baseline_5_1; break;\n\n case 52: *profile_level_val = kVTProfileLevel_H264_Baseline_5_2; break;\n\n }\n\n break;\n\n\n\n case H264_PROF_MAIN:\n\n switch (vtctx->level) {\n\n case 0: *profile_level_val = kVTProfileLevel_H264_Main_AutoLevel; break;\n\n case 30: *profile_level_val = kVTProfileLevel_H264_Main_3_0; break;\n\n case 31: *profile_level_val = kVTProfileLevel_H264_Main_3_1; break;\n\n case 32: *profile_level_val = kVTProfileLevel_H264_Main_3_2; break;\n\n case 40: *profile_level_val = kVTProfileLevel_H264_Main_4_0; break;\n\n case 41: *profile_level_val = kVTProfileLevel_H264_Main_4_1; break;\n\n case 42: *profile_level_val = kVTProfileLevel_H264_Main_4_2; break;\n\n case 50: *profile_level_val = kVTProfileLevel_H264_Main_5_0; break;\n\n case 51: *profile_level_val = kVTProfileLevel_H264_Main_5_1; break;\n\n case 52: *profile_level_val = kVTProfileLevel_H264_Main_5_2; break;\n\n }\n\n break;\n\n\n\n case H264_PROF_HIGH:\n\n switch (vtctx->level) {\n\n case 0: *profile_level_val = kVTProfileLevel_H264_High_AutoLevel; break;\n\n case 30: *profile_level_val = kVTProfileLevel_H264_High_3_0; break;\n\n case 31: *profile_level_val = kVTProfileLevel_H264_High_3_1; break;\n\n case 32: *profile_level_val = kVTProfileLevel_H264_High_3_2; break;\n\n case 40: *profile_level_val = kVTProfileLevel_H264_High_4_0; break;\n\n case 41: *profile_level_val = kVTProfileLevel_H264_High_4_1; break;\n\n case 42: *profile_level_val = kVTProfileLevel_H264_High_4_2; break;\n\n case 50: *profile_level_val = kVTProfileLevel_H264_High_5_0; break;\n\n case 51: *profile_level_val = kVTProfileLevel_H264_High_5_1; break;\n\n case 52: *profile_level_val = kVTProfileLevel_H264_High_5_2; break;\n\n }\n\n break;\n\n }\n\n\n\n if (!*profile_level_val) {\n\n av_log(avctx, AV_LOG_ERROR, \"Invalid Profile/Level.\\n\");\n\n return false;\n\n }\n\n\n\n return true;\n\n}\n", + "output": "0", + "index": 4177 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int h264_field_start(H264Context *h, const H264SliceContext *sl,\n\n const H2645NAL *nal, int first_slice)\n\n{\n\n int i;\n\n const SPS *sps;\n\n\n\n int last_pic_structure, last_pic_droppable, ret;\n\n\n\n ret = h264_init_ps(h, sl, first_slice);\n\n if (ret < 0)\n\n return ret;\n\n\n\n sps = h->ps.sps;\n\n\n\n last_pic_droppable = h->droppable;\n\n last_pic_structure = h->picture_structure;\n\n h->droppable = (nal->ref_idc == 0);\n\n h->picture_structure = sl->picture_structure;\n\n\n\n h->poc.frame_num = sl->frame_num;\n\n h->poc.poc_lsb = sl->poc_lsb;\n\n h->poc.delta_poc_bottom = sl->delta_poc_bottom;\n\n h->poc.delta_poc[0] = sl->delta_poc[0];\n\n h->poc.delta_poc[1] = sl->delta_poc[1];\n\n\n\n /* Shorten frame num gaps so we don't have to allocate reference\n\n * frames just to throw them away */\n\n if (h->poc.frame_num != h->poc.prev_frame_num) {\n\n int unwrap_prev_frame_num = h->poc.prev_frame_num;\n\n int max_frame_num = 1 << sps->log2_max_frame_num;\n\n\n\n if (unwrap_prev_frame_num > h->poc.frame_num)\n\n unwrap_prev_frame_num -= max_frame_num;\n\n\n\n if ((h->poc.frame_num - unwrap_prev_frame_num) > sps->ref_frame_count) {\n\n unwrap_prev_frame_num = (h->poc.frame_num - sps->ref_frame_count) - 1;\n\n if (unwrap_prev_frame_num < 0)\n\n unwrap_prev_frame_num += max_frame_num;\n\n\n\n h->poc.prev_frame_num = unwrap_prev_frame_num;\n\n }\n\n }\n\n\n\n /* See if we have a decoded first field looking for a pair...\n\n * Here, we're using that to see if we should mark previously\n\n * decode frames as \"finished\".\n\n * We have to do that before the \"dummy\" in-between frame allocation,\n\n * since that can modify h->cur_pic_ptr. */\n\n if (h->first_field) {\n\n av_assert0(h->cur_pic_ptr);\n\n av_assert0(h->cur_pic_ptr->f->buf[0]);\n\n assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);\n\n\n\n /* Mark old field/frame as completed */\n\n if (h->cur_pic_ptr->tf.owner == h->avctx) {\n\n ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,\n\n last_pic_structure == PICT_BOTTOM_FIELD);\n\n }\n\n\n\n /* figure out if we have a complementary field pair */\n\n if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {\n\n /* Previous field is unmatched. Don't display it, but let it\n\n * remain for reference if marked as such. */\n\n if (last_pic_structure != PICT_FRAME) {\n\n ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,\n\n last_pic_structure == PICT_TOP_FIELD);\n\n }\n\n } else {\n\n if (h->cur_pic_ptr->frame_num != h->poc.frame_num) {\n\n /* This and previous field were reference, but had\n\n * different frame_nums. Consider this field first in\n\n * pair. Throw away previous field except for reference\n\n * purposes. */\n\n if (last_pic_structure != PICT_FRAME) {\n\n ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,\n\n last_pic_structure == PICT_TOP_FIELD);\n\n }\n\n } else {\n\n /* Second field in complementary pair */\n\n if (!((last_pic_structure == PICT_TOP_FIELD &&\n\n h->picture_structure == PICT_BOTTOM_FIELD) ||\n\n (last_pic_structure == PICT_BOTTOM_FIELD &&\n\n h->picture_structure == PICT_TOP_FIELD))) {\n\n av_log(h->avctx, AV_LOG_ERROR,\n\n \"Invalid field mode combination %d/%d\\n\",\n\n last_pic_structure, h->picture_structure);\n\n h->picture_structure = last_pic_structure;\n\n h->droppable = last_pic_droppable;\n\n return AVERROR_INVALIDDATA;\n\n } else if (last_pic_droppable != h->droppable) {\n\n avpriv_request_sample(h->avctx,\n\n \"Found reference and non-reference fields in the same frame, which\");\n\n h->picture_structure = last_pic_structure;\n\n h->droppable = last_pic_droppable;\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n }\n\n }\n\n }\n\n\n\n while (h->poc.frame_num != h->poc.prev_frame_num && !h->first_field &&\n\n h->poc.frame_num != (h->poc.prev_frame_num + 1) % (1 << sps->log2_max_frame_num)) {\n\n H264Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;\n\n av_log(h->avctx, AV_LOG_DEBUG, \"Frame num gap %d %d\\n\",\n\n h->poc.frame_num, h->poc.prev_frame_num);\n\n if (!sps->gaps_in_frame_num_allowed_flag)\n\n for(i=0; ilast_pocs); i++)\n\n h->last_pocs[i] = INT_MIN;\n\n ret = h264_frame_start(h);\n\n if (ret < 0) {\n\n h->first_field = 0;\n\n return ret;\n\n }\n\n\n\n h->poc.prev_frame_num++;\n\n h->poc.prev_frame_num %= 1 << sps->log2_max_frame_num;\n\n h->cur_pic_ptr->frame_num = h->poc.prev_frame_num;\n\n h->cur_pic_ptr->invalid_gap = !sps->gaps_in_frame_num_allowed_flag;\n\n ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);\n\n ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);\n\n\n\n h->explicit_ref_marking = 0;\n\n ret = ff_h264_execute_ref_pic_marking(h);\n\n if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))\n\n return ret;\n\n /* Error concealment: If a ref is missing, copy the previous ref\n\n * in its place.\n\n * FIXME: Avoiding a memcpy would be nice, but ref handling makes\n\n * many assumptions about there being no actual duplicates.\n\n * FIXME: This does not copy padding for out-of-frame motion\n\n * vectors. Given we are concealing a lost frame, this probably\n\n * is not noticeable by comparison, but it should be fixed. */\n\n if (h->short_ref_count) {\n\n if (prev &&\n\n h->short_ref[0]->f->width == prev->f->width &&\n\n h->short_ref[0]->f->height == prev->f->height &&\n\n h->short_ref[0]->f->format == prev->f->format) {\n\n ff_thread_await_progress(&prev->tf, INT_MAX, 0);\n\n if (prev->field_picture)\n\n ff_thread_await_progress(&prev->tf, INT_MAX, 1);\n\n av_image_copy(h->short_ref[0]->f->data,\n\n h->short_ref[0]->f->linesize,\n\n (const uint8_t **)prev->f->data,\n\n prev->f->linesize,\n\n prev->f->format,\n\n prev->f->width,\n\n prev->f->height);\n\n h->short_ref[0]->poc = prev->poc + 2;\n\n }\n\n h->short_ref[0]->frame_num = h->poc.prev_frame_num;\n\n }\n\n }\n\n\n\n /* See if we have a decoded first field looking for a pair...\n\n * We're using that to see whether to continue decoding in that\n\n * frame, or to allocate a new one. */\n\n if (h->first_field) {\n\n av_assert0(h->cur_pic_ptr);\n\n av_assert0(h->cur_pic_ptr->f->buf[0]);\n\n assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);\n\n\n\n /* figure out if we have a complementary field pair */\n\n if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {\n\n /* Previous field is unmatched. Don't display it, but let it\n\n * remain for reference if marked as such. */\n\n h->missing_fields ++;\n\n h->cur_pic_ptr = NULL;\n\n h->first_field = FIELD_PICTURE(h);\n\n } else {\n\n h->missing_fields = 0;\n\n if (h->cur_pic_ptr->frame_num != h->poc.frame_num) {\n\n ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,\n\n h->picture_structure==PICT_BOTTOM_FIELD);\n\n /* This and the previous field had different frame_nums.\n\n * Consider this field first in pair. Throw away previous\n\n * one except for reference purposes. */\n\n h->first_field = 1;\n\n h->cur_pic_ptr = NULL;\n\n } else {\n\n /* Second field in complementary pair */\n\n h->first_field = 0;\n\n }\n\n }\n\n } else {\n\n /* Frame or first field in a potentially complementary pair */\n\n h->first_field = FIELD_PICTURE(h);\n\n }\n\n\n\n if (!FIELD_PICTURE(h) || h->first_field) {\n\n if (h264_frame_start(h) < 0) {\n\n h->first_field = 0;\n\n return AVERROR_INVALIDDATA;\n\n }\n\n } else {\n\n release_unused_pictures(h, 0);\n\n }\n\n /* Some macroblocks can be accessed before they're available in case\n\n * of lost slices, MBAFF or threading. */\n\n if (FIELD_PICTURE(h)) {\n\n for(i = (h->picture_structure == PICT_BOTTOM_FIELD); imb_height; i++)\n\n memset(h->slice_table + i*h->mb_stride, -1, (h->mb_stride - (i+1==h->mb_height)) * sizeof(*h->slice_table));\n\n } else {\n\n memset(h->slice_table, -1,\n\n (h->mb_height * h->mb_stride - 1) * sizeof(*h->slice_table));\n\n }\n\n\n\n ff_h264_init_poc(h->cur_pic_ptr->field_poc, &h->cur_pic_ptr->poc,\n\n h->ps.sps, &h->poc, h->picture_structure, nal->ref_idc);\n\n\n\n memcpy(h->mmco, sl->mmco, sl->nb_mmco * sizeof(*h->mmco));\n\n h->nb_mmco = sl->nb_mmco;\n\n h->explicit_ref_marking = sl->explicit_ref_marking;\n\n\n\n h->picture_idr = nal->type == H264_NAL_IDR_SLICE;\n\n\n\n if (h->sei.recovery_point.recovery_frame_cnt >= 0) {\n\n const int sei_recovery_frame_cnt = h->sei.recovery_point.recovery_frame_cnt;\n\n\n\n if (h->poc.frame_num != sei_recovery_frame_cnt || sl->slice_type_nos != AV_PICTURE_TYPE_I)\n\n h->valid_recovery_point = 1;\n\n\n\n if ( h->recovery_frame < 0\n\n || av_mod_uintp2(h->recovery_frame - h->poc.frame_num, h->ps.sps->log2_max_frame_num) > sei_recovery_frame_cnt) {\n\n h->recovery_frame = av_mod_uintp2(h->poc.frame_num + sei_recovery_frame_cnt, h->ps.sps->log2_max_frame_num);\n\n\n\n if (!h->valid_recovery_point)\n\n h->recovery_frame = h->poc.frame_num;\n\n }\n\n }\n\n\n\n h->cur_pic_ptr->f->key_frame |= (nal->type == H264_NAL_IDR_SLICE);\n\n\n\n if (nal->type == H264_NAL_IDR_SLICE ||\n\n (h->recovery_frame == h->poc.frame_num && nal->ref_idc)) {\n\n h->recovery_frame = -1;\n\n h->cur_pic_ptr->recovered = 1;\n\n }\n\n // If we have an IDR, all frames after it in decoded order are\n\n // \"recovered\".\n\n if (nal->type == H264_NAL_IDR_SLICE)\n\n h->frame_recovered |= FRAME_RECOVERED_IDR;\n\n#if 1\n\n h->cur_pic_ptr->recovered |= h->frame_recovered;\n\n#else\n\n h->cur_pic_ptr->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_IDR);\n\n#endif\n\n\n\n /* Set the frame properties/side data. Only done for the second field in\n\n * field coded frames, since some SEI information is present for each field\n\n * and is merged by the SEI parsing code. */\n\n if (!FIELD_PICTURE(h) || !h->first_field || h->missing_fields > 1) {\n\n ret = h264_export_frame_props(h);\n\n if (ret < 0)\n\n return ret;\n\n\n\n ret = h264_select_output_frame(h);\n\n if (ret < 0)\n\n return ret;\n\n }\n\n\n\n return 0;\n\n}\n", + "output": "1", + "index": 3609 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int swScale(SwsContext *c, const uint8_t *src[],\n\n int srcStride[], int srcSliceY,\n\n int srcSliceH, uint8_t *dst[], int dstStride[])\n\n{\n\n /* load a few things into local vars to make the code more readable?\n\n * and faster */\n\n const int srcW = c->srcW;\n\n const int dstW = c->dstW;\n\n const int dstH = c->dstH;\n\n const int chrDstW = c->chrDstW;\n\n const int chrSrcW = c->chrSrcW;\n\n const int lumXInc = c->lumXInc;\n\n const int chrXInc = c->chrXInc;\n\n const enum PixelFormat dstFormat = c->dstFormat;\n\n const int flags = c->flags;\n\n int32_t *vLumFilterPos = c->vLumFilterPos;\n\n int32_t *vChrFilterPos = c->vChrFilterPos;\n\n int32_t *hLumFilterPos = c->hLumFilterPos;\n\n int32_t *hChrFilterPos = c->hChrFilterPos;\n\n int16_t *vLumFilter = c->vLumFilter;\n\n int16_t *vChrFilter = c->vChrFilter;\n\n int16_t *hLumFilter = c->hLumFilter;\n\n int16_t *hChrFilter = c->hChrFilter;\n\n int32_t *lumMmxFilter = c->lumMmxFilter;\n\n int32_t *chrMmxFilter = c->chrMmxFilter;\n\n const int vLumFilterSize = c->vLumFilterSize;\n\n const int vChrFilterSize = c->vChrFilterSize;\n\n const int hLumFilterSize = c->hLumFilterSize;\n\n const int hChrFilterSize = c->hChrFilterSize;\n\n int16_t **lumPixBuf = c->lumPixBuf;\n\n int16_t **chrUPixBuf = c->chrUPixBuf;\n\n int16_t **chrVPixBuf = c->chrVPixBuf;\n\n int16_t **alpPixBuf = c->alpPixBuf;\n\n const int vLumBufSize = c->vLumBufSize;\n\n const int vChrBufSize = c->vChrBufSize;\n\n uint8_t *formatConvBuffer = c->formatConvBuffer;\n\n uint32_t *pal = c->pal_yuv;\n\n yuv2planar1_fn yuv2plane1 = c->yuv2plane1;\n\n yuv2planarX_fn yuv2planeX = c->yuv2planeX;\n\n yuv2interleavedX_fn yuv2nv12cX = c->yuv2nv12cX;\n\n yuv2packed1_fn yuv2packed1 = c->yuv2packed1;\n\n yuv2packed2_fn yuv2packed2 = c->yuv2packed2;\n\n yuv2packedX_fn yuv2packedX = c->yuv2packedX;\n\n const int chrSrcSliceY = srcSliceY >> c->chrSrcVSubSample;\n\n const int chrSrcSliceH = -((-srcSliceH) >> c->chrSrcVSubSample);\n\n int should_dither = is9_OR_10BPS(c->srcFormat) ||\n\n is16BPS(c->srcFormat);\n\n int lastDstY;\n\n\n\n /* vars which will change and which we need to store back in the context */\n\n int dstY = c->dstY;\n\n int lumBufIndex = c->lumBufIndex;\n\n int chrBufIndex = c->chrBufIndex;\n\n int lastInLumBuf = c->lastInLumBuf;\n\n int lastInChrBuf = c->lastInChrBuf;\n\n\n\n if (isPacked(c->srcFormat)) {\n\n src[0] =\n\n src[1] =\n\n src[2] =\n\n src[3] = src[0];\n\n srcStride[0] =\n\n srcStride[1] =\n\n srcStride[2] =\n\n srcStride[3] = srcStride[0];\n\n }\n\n srcStride[1] <<= c->vChrDrop;\n\n srcStride[2] <<= c->vChrDrop;\n\n\n\n DEBUG_BUFFERS(\"swScale() %p[%d] %p[%d] %p[%d] %p[%d] -> %p[%d] %p[%d] %p[%d] %p[%d]\\n\",\n\n src[0], srcStride[0], src[1], srcStride[1],\n\n src[2], srcStride[2], src[3], srcStride[3],\n\n dst[0], dstStride[0], dst[1], dstStride[1],\n\n dst[2], dstStride[2], dst[3], dstStride[3]);\n\n DEBUG_BUFFERS(\"srcSliceY: %d srcSliceH: %d dstY: %d dstH: %d\\n\",\n\n srcSliceY, srcSliceH, dstY, dstH);\n\n DEBUG_BUFFERS(\"vLumFilterSize: %d vLumBufSize: %d vChrFilterSize: %d vChrBufSize: %d\\n\",\n\n vLumFilterSize, vLumBufSize, vChrFilterSize, vChrBufSize);\n\n\n\n if (dstStride[0] % 8 != 0 || dstStride[1] % 8 != 0 ||\n\n dstStride[2] % 8 != 0 || dstStride[3] % 8 != 0) {\n\n static int warnedAlready = 0; // FIXME maybe move this into the context\n\n if (flags & SWS_PRINT_INFO && !warnedAlready) {\n\n av_log(c, AV_LOG_WARNING,\n\n \"Warning: dstStride is not aligned!\\n\"\n\n \" ->cannot do aligned memory accesses anymore\\n\");\n\n warnedAlready = 1;\n\n }\n\n }\n\n\n\n /* Note the user might start scaling the picture in the middle so this\n\n * will not get executed. This is not really intended but works\n\n * currently, so people might do it. */\n\n if (srcSliceY == 0) {\n\n lumBufIndex = -1;\n\n chrBufIndex = -1;\n\n dstY = 0;\n\n lastInLumBuf = -1;\n\n lastInChrBuf = -1;\n\n }\n\n\n\n if (!should_dither) {\n\n c->chrDither8 = c->lumDither8 = ff_sws_pb_64;\n\n }\n\n lastDstY = dstY;\n\n\n\n for (; dstY < dstH; dstY++) {\n\n const int chrDstY = dstY >> c->chrDstVSubSample;\n\n uint8_t *dest[4] = {\n\n dst[0] + dstStride[0] * dstY,\n\n dst[1] + dstStride[1] * chrDstY,\n\n dst[2] + dstStride[2] * chrDstY,\n\n (CONFIG_SWSCALE_ALPHA && alpPixBuf) ? dst[3] + dstStride[3] * dstY : NULL,\n\n };\n\n\n\n // First line needed as input\n\n const int firstLumSrcY = FFMAX(1 - vLumFilterSize, vLumFilterPos[dstY]);\n\n const int firstLumSrcY2 = FFMAX(1 - vLumFilterSize, vLumFilterPos[FFMIN(dstY | ((1 << c->chrDstVSubSample) - 1), dstH - 1)]);\n\n // First line needed as input\n\n const int firstChrSrcY = FFMAX(1 - vChrFilterSize, vChrFilterPos[chrDstY]);\n\n\n\n // Last line needed as input\n\n int lastLumSrcY = FFMIN(c->srcH, firstLumSrcY + vLumFilterSize) - 1;\n\n int lastLumSrcY2 = FFMIN(c->srcH, firstLumSrcY2 + vLumFilterSize) - 1;\n\n int lastChrSrcY = FFMIN(c->chrSrcH, firstChrSrcY + vChrFilterSize) - 1;\n\n int enough_lines;\n\n\n\n // handle holes (FAST_BILINEAR & weird filters)\n\n if (firstLumSrcY > lastInLumBuf)\n\n lastInLumBuf = firstLumSrcY - 1;\n\n if (firstChrSrcY > lastInChrBuf)\n\n lastInChrBuf = firstChrSrcY - 1;\n\n assert(firstLumSrcY >= lastInLumBuf - vLumBufSize + 1);\n\n assert(firstChrSrcY >= lastInChrBuf - vChrBufSize + 1);\n\n\n\n DEBUG_BUFFERS(\"dstY: %d\\n\", dstY);\n\n DEBUG_BUFFERS(\"\\tfirstLumSrcY: %d lastLumSrcY: %d lastInLumBuf: %d\\n\",\n\n firstLumSrcY, lastLumSrcY, lastInLumBuf);\n\n DEBUG_BUFFERS(\"\\tfirstChrSrcY: %d lastChrSrcY: %d lastInChrBuf: %d\\n\",\n\n firstChrSrcY, lastChrSrcY, lastInChrBuf);\n\n\n\n // Do we have enough lines in this slice to output the dstY line\n\n enough_lines = lastLumSrcY2 < srcSliceY + srcSliceH &&\n\n lastChrSrcY < -((-srcSliceY - srcSliceH) >> c->chrSrcVSubSample);\n\n\n\n if (!enough_lines) {\n\n lastLumSrcY = srcSliceY + srcSliceH - 1;\n\n lastChrSrcY = chrSrcSliceY + chrSrcSliceH - 1;\n\n DEBUG_BUFFERS(\"buffering slice: lastLumSrcY %d lastChrSrcY %d\\n\",\n\n lastLumSrcY, lastChrSrcY);\n\n }\n\n\n\n // Do horizontal scaling\n\n while (lastInLumBuf < lastLumSrcY) {\n\n const uint8_t *src1[4] = {\n\n src[0] + (lastInLumBuf + 1 - srcSliceY) * srcStride[0],\n\n src[1] + (lastInLumBuf + 1 - srcSliceY) * srcStride[1],\n\n src[2] + (lastInLumBuf + 1 - srcSliceY) * srcStride[2],\n\n src[3] + (lastInLumBuf + 1 - srcSliceY) * srcStride[3],\n\n };\n\n lumBufIndex++;\n\n assert(lumBufIndex < 2 * vLumBufSize);\n\n assert(lastInLumBuf + 1 - srcSliceY < srcSliceH);\n\n assert(lastInLumBuf + 1 - srcSliceY >= 0);\n\n hyscale(c, lumPixBuf[lumBufIndex], dstW, src1, srcW, lumXInc,\n\n hLumFilter, hLumFilterPos, hLumFilterSize,\n\n formatConvBuffer, pal, 0);\n\n if (CONFIG_SWSCALE_ALPHA && alpPixBuf)\n\n hyscale(c, alpPixBuf[lumBufIndex], dstW, src1, srcW,\n\n lumXInc, hLumFilter, hLumFilterPos, hLumFilterSize,\n\n formatConvBuffer, pal, 1);\n\n lastInLumBuf++;\n\n DEBUG_BUFFERS(\"\\t\\tlumBufIndex %d: lastInLumBuf: %d\\n\",\n\n lumBufIndex, lastInLumBuf);\n\n }\n\n while (lastInChrBuf < lastChrSrcY) {\n\n const uint8_t *src1[4] = {\n\n src[0] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[0],\n\n src[1] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[1],\n\n src[2] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[2],\n\n src[3] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[3],\n\n };\n\n chrBufIndex++;\n\n assert(chrBufIndex < 2 * vChrBufSize);\n\n assert(lastInChrBuf + 1 - chrSrcSliceY < (chrSrcSliceH));\n\n assert(lastInChrBuf + 1 - chrSrcSliceY >= 0);\n\n // FIXME replace parameters through context struct (some at least)\n\n\n\n if (c->needs_hcscale)\n\n hcscale(c, chrUPixBuf[chrBufIndex], chrVPixBuf[chrBufIndex],\n\n chrDstW, src1, chrSrcW, chrXInc,\n\n hChrFilter, hChrFilterPos, hChrFilterSize,\n\n formatConvBuffer, pal);\n\n lastInChrBuf++;\n\n DEBUG_BUFFERS(\"\\t\\tchrBufIndex %d: lastInChrBuf: %d\\n\",\n\n chrBufIndex, lastInChrBuf);\n\n }\n\n // wrap buf index around to stay inside the ring buffer\n\n if (lumBufIndex >= vLumBufSize)\n\n lumBufIndex -= vLumBufSize;\n\n if (chrBufIndex >= vChrBufSize)\n\n chrBufIndex -= vChrBufSize;\n\n if (!enough_lines)\n\n break; // we can't output a dstY line so let's try with the next slice\n\n\n\n#if HAVE_MMX\n\n updateMMXDitherTables(c, dstY, lumBufIndex, chrBufIndex,\n\n lastInLumBuf, lastInChrBuf);\n\n#endif\n\n if (should_dither) {\n\n c->chrDither8 = dither_8x8_128[chrDstY & 7];\n\n c->lumDither8 = dither_8x8_128[dstY & 7];\n\n }\n\n if (dstY >= dstH - 2) {\n\n /* hmm looks like we can't use MMX here without overwriting\n\n * this array's tail */\n\n ff_sws_init_output_funcs(c, &yuv2plane1, &yuv2planeX, &yuv2nv12cX,\n\n &yuv2packed1, &yuv2packed2, &yuv2packedX);\n\n }\n\n\n\n {\n\n const int16_t **lumSrcPtr = (const int16_t **)lumPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize;\n\n const int16_t **chrUSrcPtr = (const int16_t **)chrUPixBuf + chrBufIndex + firstChrSrcY - lastInChrBuf + vChrBufSize;\n\n const int16_t **chrVSrcPtr = (const int16_t **)chrVPixBuf + chrBufIndex + firstChrSrcY - lastInChrBuf + vChrBufSize;\n\n const int16_t **alpSrcPtr = (CONFIG_SWSCALE_ALPHA && alpPixBuf) ?\n\n (const int16_t **)alpPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize : NULL;\n\n\n\n if (firstLumSrcY < 0 || firstLumSrcY + vLumFilterSize > c->srcH) {\n\n const int16_t **tmpY = (const int16_t **)lumPixBuf +\n\n 2 * vLumBufSize;\n\n int neg = -firstLumSrcY, i;\n\n int end = FFMIN(c->srcH - firstLumSrcY, vLumFilterSize);\n\n for (i = 0; i < neg; i++)\n\n tmpY[i] = lumSrcPtr[neg];\n\n for (; i < end; i++)\n\n tmpY[i] = lumSrcPtr[i];\n\n for (; i < vLumFilterSize; i++)\n\n tmpY[i] = tmpY[i - 1];\n\n lumSrcPtr = tmpY;\n\n\n\n if (alpSrcPtr) {\n\n const int16_t **tmpA = (const int16_t **)alpPixBuf +\n\n 2 * vLumBufSize;\n\n for (i = 0; i < neg; i++)\n\n tmpA[i] = alpSrcPtr[neg];\n\n for (; i < end; i++)\n\n tmpA[i] = alpSrcPtr[i];\n\n for (; i < vLumFilterSize; i++)\n\n tmpA[i] = tmpA[i - 1];\n\n alpSrcPtr = tmpA;\n\n }\n\n }\n\n if (firstChrSrcY < 0 ||\n\n firstChrSrcY + vChrFilterSize > c->chrSrcH) {\n\n const int16_t **tmpU = (const int16_t **)chrUPixBuf + 2 * vChrBufSize,\n\n **tmpV = (const int16_t **)chrVPixBuf + 2 * vChrBufSize;\n\n int neg = -firstChrSrcY, i;\n\n int end = FFMIN(c->chrSrcH - firstChrSrcY, vChrFilterSize);\n\n for (i = 0; i < neg; i++) {\n\n tmpU[i] = chrUSrcPtr[neg];\n\n tmpV[i] = chrVSrcPtr[neg];\n\n }\n\n for (; i < end; i++) {\n\n tmpU[i] = chrUSrcPtr[i];\n\n tmpV[i] = chrVSrcPtr[i];\n\n }\n\n for (; i < vChrFilterSize; i++) {\n\n tmpU[i] = tmpU[i - 1];\n\n tmpV[i] = tmpV[i - 1];\n\n }\n\n chrUSrcPtr = tmpU;\n\n chrVSrcPtr = tmpV;\n\n }\n\n\n\n if (isPlanarYUV(dstFormat) ||\n\n (isGray(dstFormat) && !isALPHA(dstFormat))) { // YV12 like\n\n const int chrSkipMask = (1 << c->chrDstVSubSample) - 1;\n\n\n\n if (vLumFilterSize == 1) {\n\n yuv2plane1(lumSrcPtr[0], dest[0], dstW, c->lumDither8, 0);\n\n } else {\n\n yuv2planeX(vLumFilter + dstY * vLumFilterSize,\n\n vLumFilterSize, lumSrcPtr, dest[0],\n\n dstW, c->lumDither8, 0);\n\n }\n\n\n\n if (!((dstY & chrSkipMask) || isGray(dstFormat))) {\n\n if (yuv2nv12cX) {\n\n yuv2nv12cX(c, vChrFilter + chrDstY * vChrFilterSize,\n\n vChrFilterSize, chrUSrcPtr, chrVSrcPtr,\n\n dest[1], chrDstW);\n\n } else if (vChrFilterSize == 1) {\n\n yuv2plane1(chrUSrcPtr[0], dest[1], chrDstW, c->chrDither8, 0);\n\n yuv2plane1(chrVSrcPtr[0], dest[2], chrDstW, c->chrDither8, 3);\n\n } else {\n\n yuv2planeX(vChrFilter + chrDstY * vChrFilterSize,\n\n vChrFilterSize, chrUSrcPtr, dest[1],\n\n chrDstW, c->chrDither8, 0);\n\n yuv2planeX(vChrFilter + chrDstY * vChrFilterSize,\n\n vChrFilterSize, chrVSrcPtr, dest[2],\n\n chrDstW, c->chrDither8, 3);\n\n }\n\n }\n\n\n\n if (CONFIG_SWSCALE_ALPHA && alpPixBuf) {\n\n if (vLumFilterSize == 1) {\n\n yuv2plane1(alpSrcPtr[0], dest[3], dstW,\n\n c->lumDither8, 0);\n\n } else {\n\n yuv2planeX(vLumFilter + dstY * vLumFilterSize,\n\n vLumFilterSize, alpSrcPtr, dest[3],\n\n dstW, c->lumDither8, 0);\n\n }\n\n }\n\n } else {\n\n assert(lumSrcPtr + vLumFilterSize - 1 < lumPixBuf + vLumBufSize * 2);\n\n assert(chrUSrcPtr + vChrFilterSize - 1 < chrUPixBuf + vChrBufSize * 2);\n\n if (c->yuv2packed1 && vLumFilterSize == 1 &&\n\n vChrFilterSize <= 2) { // unscaled RGB\n\n int chrAlpha = vChrFilterSize == 1 ? 0 : vChrFilter[2 * dstY + 1];\n\n yuv2packed1(c, *lumSrcPtr, chrUSrcPtr, chrVSrcPtr,\n\n alpPixBuf ? *alpSrcPtr : NULL,\n\n dest[0], dstW, chrAlpha, dstY);\n\n } else if (c->yuv2packed2 && vLumFilterSize == 2 &&\n\n vChrFilterSize == 2) { // bilinear upscale RGB\n\n int lumAlpha = vLumFilter[2 * dstY + 1];\n\n int chrAlpha = vChrFilter[2 * dstY + 1];\n\n lumMmxFilter[2] =\n\n lumMmxFilter[3] = vLumFilter[2 * dstY] * 0x10001;\n\n chrMmxFilter[2] =\n\n chrMmxFilter[3] = vChrFilter[2 * chrDstY] * 0x10001;\n\n yuv2packed2(c, lumSrcPtr, chrUSrcPtr, chrVSrcPtr,\n\n alpPixBuf ? alpSrcPtr : NULL,\n\n dest[0], dstW, lumAlpha, chrAlpha, dstY);\n\n } else { // general RGB\n\n yuv2packedX(c, vLumFilter + dstY * vLumFilterSize,\n\n lumSrcPtr, vLumFilterSize,\n\n vChrFilter + dstY * vChrFilterSize,\n\n chrUSrcPtr, chrVSrcPtr, vChrFilterSize,\n\n alpSrcPtr, dest[0], dstW, dstY);\n\n }\n\n }\n\n }\n\n }\n\n\n\n if (isPlanar(dstFormat) && isALPHA(dstFormat) && !alpPixBuf)\n\n fillPlane(dst[3], dstStride[3], dstW, dstY - lastDstY, lastDstY, 255);\n\n\n\n#if HAVE_MMX2\n\n if (av_get_cpu_flags() & AV_CPU_FLAG_MMX2)\n\n __asm__ volatile (\"sfence\" ::: \"memory\");\n\n#endif\n\n emms_c();\n\n\n\n /* store changed local vars back in the context */\n\n c->dstY = dstY;\n\n c->lumBufIndex = lumBufIndex;\n\n c->chrBufIndex = chrBufIndex;\n\n c->lastInLumBuf = lastInLumBuf;\n\n c->lastInChrBuf = lastInChrBuf;\n\n\n\n return dstY - lastDstY;\n\n}\n", + "output": "0", + "index": 24972 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "void ff_hevc_deblocking_boundary_strengths(HEVCContext *s, int x0, int y0,\n\n int log2_trafo_size,\n\n int slice_or_tiles_up_boundary,\n\n int slice_or_tiles_left_boundary)\n\n{\n\n MvField *tab_mvf = s->ref->tab_mvf;\n\n int log2_min_pu_size = s->sps->log2_min_pu_size;\n\n int log2_min_tu_size = s->sps->log2_min_tb_size;\n\n int min_pu_width = s->sps->min_pu_width;\n\n int min_tu_width = s->sps->min_tb_width;\n\n int is_intra = tab_mvf[(y0 >> log2_min_pu_size) * min_pu_width +\n\n (x0 >> log2_min_pu_size)].is_intra;\n\n int i, j, bs;\n\n\n\n if (y0 > 0 && (y0 & 7) == 0) {\n\n int yp_pu = (y0 - 1) >> log2_min_pu_size;\n\n int yq_pu = y0 >> log2_min_pu_size;\n\n int yp_tu = (y0 - 1) >> log2_min_tu_size;\n\n int yq_tu = y0 >> log2_min_tu_size;\n\n\n\n for (i = 0; i < (1 << log2_trafo_size); i += 4) {\n\n int x_pu = (x0 + i) >> log2_min_pu_size;\n\n int x_tu = (x0 + i) >> log2_min_tu_size;\n\n MvField *top = &tab_mvf[yp_pu * min_pu_width + x_pu];\n\n MvField *curr = &tab_mvf[yq_pu * min_pu_width + x_pu];\n\n uint8_t top_cbf_luma = s->cbf_luma[yp_tu * min_tu_width + x_tu];\n\n uint8_t curr_cbf_luma = s->cbf_luma[yq_tu * min_tu_width + x_tu];\n\n RefPicList *top_refPicList = ff_hevc_get_ref_list(s, s->ref,\n\n x0 + i, y0 - 1);\n\n\n\n bs = boundary_strength(s, curr, curr_cbf_luma,\n\n top, top_cbf_luma, top_refPicList, 1);\n\n if (!s->sh.slice_loop_filter_across_slices_enabled_flag &&\n\n (slice_or_tiles_up_boundary & 1) &&\n\n (y0 % (1 << s->sps->log2_ctb_size)) == 0)\n\n bs = 0;\n\n else if (!s->pps->loop_filter_across_tiles_enabled_flag &&\n\n (slice_or_tiles_up_boundary & 2) &&\n\n (y0 % (1 << s->sps->log2_ctb_size)) == 0)\n\n bs = 0;\n\n if (y0 == 0 || s->sh.disable_deblocking_filter_flag == 1)\n\n bs = 0;\n\n if (bs)\n\n s->horizontal_bs[((x0 + i) + y0 * s->bs_width) >> 2] = bs;\n\n }\n\n }\n\n\n\n // bs for TU internal horizontal PU boundaries\n\n if (log2_trafo_size > s->sps->log2_min_pu_size && !is_intra)\n\n for (j = 8; j < (1 << log2_trafo_size); j += 8) {\n\n int yp_pu = (y0 + j - 1) >> log2_min_pu_size;\n\n int yq_pu = (y0 + j) >> log2_min_pu_size;\n\n int yp_tu = (y0 + j - 1) >> log2_min_tu_size;\n\n int yq_tu = (y0 + j) >> log2_min_tu_size;\n\n\n\n for (i = 0; i < (1 << log2_trafo_size); i += 4) {\n\n int x_pu = (x0 + i) >> log2_min_pu_size;\n\n int x_tu = (x0 + i) >> log2_min_tu_size;\n\n MvField *top = &tab_mvf[yp_pu * min_pu_width + x_pu];\n\n MvField *curr = &tab_mvf[yq_pu * min_pu_width + x_pu];\n\n uint8_t top_cbf_luma = s->cbf_luma[yp_tu * min_tu_width + x_tu];\n\n uint8_t curr_cbf_luma = s->cbf_luma[yq_tu * min_tu_width + x_tu];\n\n RefPicList *top_refPicList = ff_hevc_get_ref_list(s, s->ref,\n\n x0 + i,\n\n y0 + j - 1);\n\n\n\n bs = boundary_strength(s, curr, curr_cbf_luma,\n\n top, top_cbf_luma, top_refPicList, 0);\n\n if (s->sh.disable_deblocking_filter_flag == 1)\n\n bs = 0;\n\n if (bs)\n\n s->horizontal_bs[((x0 + i) + (y0 + j) * s->bs_width) >> 2] = bs;\n\n }\n\n }\n\n\n\n // bs for vertical TU boundaries\n\n if (x0 > 0 && (x0 & 7) == 0) {\n\n int xp_pu = (x0 - 1) >> log2_min_pu_size;\n\n int xq_pu = x0 >> log2_min_pu_size;\n\n int xp_tu = (x0 - 1) >> log2_min_tu_size;\n\n int xq_tu = x0 >> log2_min_tu_size;\n\n\n\n for (i = 0; i < (1 << log2_trafo_size); i += 4) {\n\n int y_pu = (y0 + i) >> log2_min_pu_size;\n\n int y_tu = (y0 + i) >> log2_min_tu_size;\n\n MvField *left = &tab_mvf[y_pu * min_pu_width + xp_pu];\n\n MvField *curr = &tab_mvf[y_pu * min_pu_width + xq_pu];\n\n\n\n uint8_t left_cbf_luma = s->cbf_luma[y_tu * min_tu_width + xp_tu];\n\n uint8_t curr_cbf_luma = s->cbf_luma[y_tu * min_tu_width + xq_tu];\n\n RefPicList *left_refPicList = ff_hevc_get_ref_list(s, s->ref,\n\n x0 - 1, y0 + i);\n\n\n\n bs = boundary_strength(s, curr, curr_cbf_luma,\n\n left, left_cbf_luma, left_refPicList, 1);\n\n if (!s->sh.slice_loop_filter_across_slices_enabled_flag &&\n\n (slice_or_tiles_left_boundary & 1) &&\n\n (x0 % (1 << s->sps->log2_ctb_size)) == 0)\n\n bs = 0;\n\n else if (!s->pps->loop_filter_across_tiles_enabled_flag &&\n\n (slice_or_tiles_left_boundary & 2) &&\n\n (x0 % (1 << s->sps->log2_ctb_size)) == 0)\n\n bs = 0;\n\n if (x0 == 0 || s->sh.disable_deblocking_filter_flag == 1)\n\n bs = 0;\n\n if (bs)\n\n s->vertical_bs[(x0 >> 3) + ((y0 + i) >> 2) * s->bs_width] = bs;\n\n }\n\n }\n\n\n\n // bs for TU internal vertical PU boundaries\n\n if (log2_trafo_size > log2_min_pu_size && !is_intra)\n\n for (j = 0; j < (1 << log2_trafo_size); j += 4) {\n\n int y_pu = (y0 + j) >> log2_min_pu_size;\n\n int y_tu = (y0 + j) >> log2_min_tu_size;\n\n\n\n for (i = 8; i < (1 << log2_trafo_size); i += 8) {\n\n int xp_pu = (x0 + i - 1) >> log2_min_pu_size;\n\n int xq_pu = (x0 + i) >> log2_min_pu_size;\n\n int xp_tu = (x0 + i - 1) >> log2_min_tu_size;\n\n int xq_tu = (x0 + i) >> log2_min_tu_size;\n\n MvField *left = &tab_mvf[y_pu * min_pu_width + xp_pu];\n\n MvField *curr = &tab_mvf[y_pu * min_pu_width + xq_pu];\n\n uint8_t left_cbf_luma = s->cbf_luma[y_tu * min_tu_width + xp_tu];\n\n uint8_t curr_cbf_luma = s->cbf_luma[y_tu * min_tu_width + xq_tu];\n\n RefPicList *left_refPicList = ff_hevc_get_ref_list(s, s->ref,\n\n x0 + i - 1,\n\n y0 + j);\n\n\n\n bs = boundary_strength(s, curr, curr_cbf_luma,\n\n left, left_cbf_luma, left_refPicList, 0);\n\n if (s->sh.disable_deblocking_filter_flag == 1)\n\n bs = 0;\n\n if (bs)\n\n s->vertical_bs[((x0 + i) >> 3) + ((y0 + j) >> 2) * s->bs_width] = bs;\n\n }\n\n }\n\n}\n", + "output": "0", + "index": 22665 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int vp8_handle_packet(AVFormatContext *ctx, PayloadContext *vp8,\n\n AVStream *st, AVPacket *pkt, uint32_t *timestamp,\n\n const uint8_t *buf, int len, uint16_t seq,\n\n int flags)\n\n{\n\n int start_partition, end_packet;\n\n int extended_bits, part_id;\n\n int pictureid_present = 0, tl0picidx_present = 0, tid_present = 0,\n\n keyidx_present = 0;\n\n int pictureid = -1, pictureid_mask = 0;\n\n int returned_old_frame = 0;\n\n uint32_t old_timestamp;\n\n\n\n if (!buf) {\n\n if (vp8->data) {\n\n int ret = ff_rtp_finalize_packet(pkt, &vp8->data, st->index);\n\n if (ret < 0)\n\n return ret;\n\n *timestamp = vp8->timestamp;\n\n if (vp8->sequence_dirty)\n\n pkt->flags |= AV_PKT_FLAG_CORRUPT;\n\n return 0;\n\n }\n\n return AVERROR(EAGAIN);\n\n }\n\n\n\n if (len < 1)\n\n return AVERROR_INVALIDDATA;\n\n\n\n extended_bits = buf[0] & 0x80;\n\n start_partition = buf[0] & 0x10;\n\n part_id = buf[0] & 0x0f;\n\n end_packet = flags & RTP_FLAG_MARKER;\n\n buf++;\n\n len--;\n\n if (extended_bits) {\n\n if (len < 1)\n\n return AVERROR_INVALIDDATA;\n\n pictureid_present = buf[0] & 0x80;\n\n tl0picidx_present = buf[0] & 0x40;\n\n tid_present = buf[0] & 0x20;\n\n keyidx_present = buf[0] & 0x10;\n\n buf++;\n\n len--;\n\n }\n\n if (pictureid_present) {\n\n if (len < 1)\n\n return AVERROR_INVALIDDATA;\n\n if (buf[0] & 0x80) {\n\n if (len < 2)\n\n return AVERROR_INVALIDDATA;\n\n pictureid = AV_RB16(buf) & 0x7fff;\n\n pictureid_mask = 0x7fff;\n\n buf += 2;\n\n len -= 2;\n\n } else {\n\n pictureid = buf[0] & 0x7f;\n\n pictureid_mask = 0x7f;\n\n buf++;\n\n len--;\n\n }\n\n }\n\n if (tl0picidx_present) {\n\n // Ignoring temporal level zero index\n\n buf++;\n\n len--;\n\n }\n\n if (tid_present || keyidx_present) {\n\n // Ignoring temporal layer index, layer sync bit and keyframe index\n\n buf++;\n\n len--;\n\n }\n\n if (len < 1)\n\n return AVERROR_INVALIDDATA;\n\n\n\n if (start_partition && part_id == 0 && len >= 3) {\n\n int res;\n\n int non_key = buf[0] & 0x01;\n\n if (!non_key) {\n\n vp8_free_buffer(vp8);\n\n // Keyframe, decoding ok again\n\n vp8->sequence_ok = 1;\n\n vp8->sequence_dirty = 0;\n\n vp8->got_keyframe = 1;\n\n } else {\n\n int can_continue = vp8->data && !vp8->is_keyframe &&\n\n avio_tell(vp8->data) >= vp8->first_part_size;\n\n if (!vp8->sequence_ok)\n\n return AVERROR(EAGAIN);\n\n if (!vp8->got_keyframe)\n\n return vp8_broken_sequence(ctx, vp8, \"Keyframe missing\\n\");\n\n if (pictureid >= 0) {\n\n if (pictureid != ((vp8->prev_pictureid + 1) & pictureid_mask)) {\n\n return vp8_broken_sequence(ctx, vp8,\n\n \"Missed a picture, sequence broken\\n\");\n\n } else {\n\n if (vp8->data && !can_continue)\n\n return vp8_broken_sequence(ctx, vp8,\n\n \"Missed a picture, sequence broken\\n\");\n\n }\n\n } else {\n\n uint16_t expected_seq = vp8->prev_seq + 1;\n\n int16_t diff = seq - expected_seq;\n\n if (vp8->data) {\n\n // No picture id, so we can't know if missed packets\n\n // contained any new frames. If diff == 0, we did get\n\n // later packets from the same frame (matching timestamp),\n\n // so we know we didn't miss any frame. If diff == 1 and\n\n // we still have data (not flushed by the end of frame\n\n // marker), the single missed packet must have been part\n\n // of the same frame.\n\n if ((diff == 0 || diff == 1) && can_continue) {\n\n // Proceed with what we have\n\n } else {\n\n return vp8_broken_sequence(ctx, vp8,\n\n \"Missed too much, sequence broken\\n\");\n\n }\n\n } else {\n\n if (diff != 0)\n\n return vp8_broken_sequence(ctx, vp8,\n\n \"Missed unknown data, sequence broken\\n\");\n\n }\n\n }\n\n if (vp8->data) {\n\n vp8->sequence_dirty = 1;\n\n if (avio_tell(vp8->data) >= vp8->first_part_size) {\n\n int ret = ff_rtp_finalize_packet(pkt, &vp8->data, st->index);\n\n if (ret < 0)\n\n return ret;\n\n pkt->flags |= AV_PKT_FLAG_CORRUPT;\n\n returned_old_frame = 1;\n\n old_timestamp = vp8->timestamp;\n\n } else {\n\n // Shouldn't happen\n\n vp8_free_buffer(vp8);\n\n }\n\n }\n\n }\n\n vp8->first_part_size = (AV_RL16(&buf[1]) << 3 | buf[0] >> 5) + 3;\n\n if ((res = avio_open_dyn_buf(&vp8->data)) < 0)\n\n return res;\n\n vp8->timestamp = *timestamp;\n\n vp8->broken_frame = 0;\n\n vp8->prev_pictureid = pictureid;\n\n vp8->is_keyframe = !non_key;\n\n } else {\n\n uint16_t expected_seq = vp8->prev_seq + 1;\n\n\n\n if (!vp8->sequence_ok)\n\n return AVERROR(EAGAIN);\n\n\n\n if (vp8->timestamp != *timestamp) {\n\n // Missed the start of the new frame, sequence broken\n\n return vp8_broken_sequence(ctx, vp8,\n\n \"Received no start marker; dropping frame\\n\");\n\n }\n\n\n\n if (seq != expected_seq) {\n\n if (vp8->is_keyframe) {\n\n return vp8_broken_sequence(ctx, vp8,\n\n \"Missed part of a keyframe, sequence broken\\n\");\n\n } else if (vp8->data && avio_tell(vp8->data) >= vp8->first_part_size) {\n\n vp8->broken_frame = 1;\n\n vp8->sequence_dirty = 1;\n\n } else {\n\n return vp8_broken_sequence(ctx, vp8,\n\n \"Missed part of the first partition, sequence broken\\n\");\n\n }\n\n }\n\n }\n\n\n\n if (!vp8->data)\n\n return vp8_broken_sequence(ctx, vp8, \"Received no start marker\\n\");\n\n\n\n vp8->prev_seq = seq;\n\n if (!vp8->broken_frame)\n\n avio_write(vp8->data, buf, len);\n\n\n\n if (returned_old_frame) {\n\n *timestamp = old_timestamp;\n\n return end_packet ? 1 : 0;\n\n }\n\n\n\n if (end_packet) {\n\n int ret;\n\n ret = ff_rtp_finalize_packet(pkt, &vp8->data, st->index);\n\n if (ret < 0)\n\n return ret;\n\n if (vp8->sequence_dirty)\n\n pkt->flags |= AV_PKT_FLAG_CORRUPT;\n\n return 0;\n\n }\n\n\n\n return AVERROR(EAGAIN);\n\n}\n", + "output": "1", + "index": 11330 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int encode_block(SVQ1Context *s, uint8_t *src, uint8_t *ref, uint8_t *decoded, int stride, int level, int threshold, int lambda, int intra){\n\n int count, y, x, i, j, split, best_mean, best_score, best_count;\n\n int best_vector[6];\n\n int block_sum[7]= {0, 0, 0, 0, 0, 0};\n\n int w= 2<<((level+2)>>1);\n\n int h= 2<<((level+1)>>1);\n\n int size=w*h;\n\n int16_t block[7][256];\n\n const int8_t *codebook_sum, *codebook;\n\n const uint16_t (*mean_vlc)[2];\n\n const uint8_t (*multistage_vlc)[2];\n\n\n\n best_score=0;\n\n //FIXME optimize, this doenst need to be done multiple times\n\n if(intra){\n\n codebook_sum= svq1_intra_codebook_sum[level];\n\n codebook= ff_svq1_intra_codebooks[level];\n\n mean_vlc= ff_svq1_intra_mean_vlc;\n\n multistage_vlc= ff_svq1_intra_multistage_vlc[level];\n\n for(y=0; y>(level+3));\n\n best_mean= (block_sum[0] + (size>>1)) >> (level+3);\n\n\n\n if(level<4){\n\n for(count=1; count<7; count++){\n\n int best_vector_score= INT_MAX;\n\n int best_vector_sum=-999, best_vector_mean=-999;\n\n const int stage= count-1;\n\n const int8_t *vector;\n\n\n\n for(i=0; i<16; i++){\n\n int sum= codebook_sum[stage*16 + i];\n\n int sqr, diff, score;\n\n\n\n vector = codebook + stage*size*16 + i*size;\n\n sqr = s->dsp.ssd_int8_vs_int16(vector, block[stage], size);\n\n diff= block_sum[stage] - sum;\n\n score= sqr - ((diff*(int64_t)diff)>>(level+3)); //FIXME 64bit slooow\n\n if(score < best_vector_score){\n\n int mean= (diff + (size>>1)) >> (level+3);\n\n assert(mean >-300 && mean<300);\n\n mean= av_clip(mean, intra?0:-256, 255);\n\n best_vector_score= score;\n\n best_vector[stage]= i;\n\n best_vector_sum= sum;\n\n best_vector_mean= mean;\n\n }\n\n }\n\n assert(best_vector_mean != -999);\n\n vector= codebook + stage*size*16 + best_vector[stage]*size;\n\n for(j=0; j threshold && level){\n\n int score=0;\n\n int offset= (level&1) ? stride*h/2 : w/2;\n\n PutBitContext backup[6];\n\n\n\n for(i=level-1; i>=0; i--){\n\n backup[i]= s->reorder_pb[i];\n\n }\n\n score += encode_block(s, src , ref , decoded , stride, level-1, threshold>>1, lambda, intra);\n\n score += encode_block(s, src + offset, ref + offset, decoded + offset, stride, level-1, threshold>>1, lambda, intra);\n\n score += lambda;\n\n\n\n if(score < best_score){\n\n best_score= score;\n\n split=1;\n\n }else{\n\n for(i=level-1; i>=0; i--){\n\n s->reorder_pb[i]= backup[i];\n\n }\n\n }\n\n }\n\n if (level > 0)\n\n put_bits(&s->reorder_pb[level], 1, split);\n\n\n\n if(!split){\n\n assert((best_mean >= 0 && best_mean<256) || !intra);\n\n assert(best_mean >= -256 && best_mean<256);\n\n assert(best_count >=0 && best_count<7);\n\n assert(level<4 || best_count==0);\n\n\n\n /* output the encoding */\n\n put_bits(&s->reorder_pb[level],\n\n multistage_vlc[1 + best_count][1],\n\n multistage_vlc[1 + best_count][0]);\n\n put_bits(&s->reorder_pb[level], mean_vlc[best_mean][1],\n\n mean_vlc[best_mean][0]);\n\n\n\n for (i = 0; i < best_count; i++){\n\n assert(best_vector[i]>=0 && best_vector[i]<16);\n\n put_bits(&s->reorder_pb[level], 4, best_vector[i]);\n\n }\n\n\n\n for(y=0; ypc);\n\n }\n\n\n\n opc = GET_FIELD(insn, 0, 1);\n\n\n\n rd = GET_FIELD(insn, 2, 6);\n\n\n\n cpu_tmp1 = cpu_src1 = tcg_temp_new();\n\n cpu_tmp2 = cpu_src2 = tcg_temp_new();\n\n\n\n switch (opc) {\n\n case 0: /* branches/sethi */\n\n {\n\n unsigned int xop = GET_FIELD(insn, 7, 9);\n\n int32_t target;\n\n switch (xop) {\n\n#ifdef TARGET_SPARC64\n\n case 0x1: /* V9 BPcc */\n\n {\n\n int cc;\n\n\n\n target = GET_FIELD_SP(insn, 0, 18);\n\n target = sign_extend(target, 19);\n\n target <<= 2;\n\n cc = GET_FIELD_SP(insn, 20, 21);\n\n if (cc == 0)\n\n do_branch(dc, target, insn, 0);\n\n else if (cc == 2)\n\n do_branch(dc, target, insn, 1);\n\n else\n\n goto illegal_insn;\n\n goto jmp_insn;\n\n }\n\n case 0x3: /* V9 BPr */\n\n {\n\n target = GET_FIELD_SP(insn, 0, 13) |\n\n (GET_FIELD_SP(insn, 20, 21) << 14);\n\n target = sign_extend(target, 16);\n\n target <<= 2;\n\n cpu_src1 = get_src1(dc, insn);\n\n do_branch_reg(dc, target, insn, cpu_src1);\n\n goto jmp_insn;\n\n }\n\n case 0x5: /* V9 FBPcc */\n\n {\n\n int cc = GET_FIELD_SP(insn, 20, 21);\n\n if (gen_trap_ifnofpu(dc)) {\n\n goto jmp_insn;\n\n }\n\n target = GET_FIELD_SP(insn, 0, 18);\n\n target = sign_extend(target, 19);\n\n target <<= 2;\n\n do_fbranch(dc, target, insn, cc);\n\n goto jmp_insn;\n\n }\n\n#else\n\n case 0x7: /* CBN+x */\n\n {\n\n goto ncp_insn;\n\n }\n\n#endif\n\n case 0x2: /* BN+x */\n\n {\n\n target = GET_FIELD(insn, 10, 31);\n\n target = sign_extend(target, 22);\n\n target <<= 2;\n\n do_branch(dc, target, insn, 0);\n\n goto jmp_insn;\n\n }\n\n case 0x6: /* FBN+x */\n\n {\n\n if (gen_trap_ifnofpu(dc)) {\n\n goto jmp_insn;\n\n }\n\n target = GET_FIELD(insn, 10, 31);\n\n target = sign_extend(target, 22);\n\n target <<= 2;\n\n do_fbranch(dc, target, insn, 0);\n\n goto jmp_insn;\n\n }\n\n case 0x4: /* SETHI */\n\n /* Special-case %g0 because that's the canonical nop. */\n\n if (rd) {\n\n uint32_t value = GET_FIELD(insn, 10, 31);\n\n TCGv t = gen_dest_gpr(dc, rd);\n\n tcg_gen_movi_tl(t, value << 10);\n\n gen_store_gpr(dc, rd, t);\n\n }\n\n break;\n\n case 0x0: /* UNIMPL */\n\n default:\n\n goto illegal_insn;\n\n }\n\n break;\n\n }\n\n break;\n\n case 1: /*CALL*/\n\n {\n\n target_long target = GET_FIELDs(insn, 2, 31) << 2;\n\n TCGv o7 = gen_dest_gpr(dc, 15);\n\n\n\n tcg_gen_movi_tl(o7, dc->pc);\n\n gen_store_gpr(dc, 15, o7);\n\n target += dc->pc;\n\n gen_mov_pc_npc(dc);\n\n#ifdef TARGET_SPARC64\n\n if (unlikely(AM_CHECK(dc))) {\n\n target &= 0xffffffffULL;\n\n }\n\n#endif\n\n dc->npc = target;\n\n }\n\n goto jmp_insn;\n\n case 2: /* FPU & Logical Operations */\n\n {\n\n unsigned int xop = GET_FIELD(insn, 7, 12);\n\n if (xop == 0x3a) { /* generate trap */\n\n int cond = GET_FIELD(insn, 3, 6);\n\n TCGv_i32 trap;\n\n int l1 = -1, mask;\n\n\n\n if (cond == 0) {\n\n /* Trap never. */\n\n break;\n\n }\n\n\n\n save_state(dc);\n\n\n\n if (cond != 8) {\n\n /* Conditional trap. */\n\n DisasCompare cmp;\n\n#ifdef TARGET_SPARC64\n\n /* V9 icc/xcc */\n\n int cc = GET_FIELD_SP(insn, 11, 12);\n\n if (cc == 0) {\n\n gen_compare(&cmp, 0, cond, dc);\n\n } else if (cc == 2) {\n\n gen_compare(&cmp, 1, cond, dc);\n\n } else {\n\n goto illegal_insn;\n\n }\n\n#else\n\n gen_compare(&cmp, 0, cond, dc);\n\n#endif\n\n l1 = gen_new_label();\n\n tcg_gen_brcond_tl(tcg_invert_cond(cmp.cond),\n\n cmp.c1, cmp.c2, l1);\n\n free_compare(&cmp);\n\n }\n\n\n\n mask = ((dc->def->features & CPU_FEATURE_HYPV) && supervisor(dc)\n\n ? UA2005_HTRAP_MASK : V8_TRAP_MASK);\n\n\n\n /* Don't use the normal temporaries, as they may well have\n\n gone out of scope with the branch above. While we're\n\n doing that we might as well pre-truncate to 32-bit. */\n\n trap = tcg_temp_new_i32();\n\n\n\n rs1 = GET_FIELD_SP(insn, 14, 18);\n\n if (IS_IMM) {\n\n rs2 = GET_FIELD_SP(insn, 0, 6);\n\n if (rs1 == 0) {\n\n tcg_gen_movi_i32(trap, (rs2 & mask) + TT_TRAP);\n\n /* Signal that the trap value is fully constant. */\n\n mask = 0;\n\n } else {\n\n TCGv t1 = gen_load_gpr(dc, rs1);\n\n tcg_gen_trunc_tl_i32(trap, t1);\n\n tcg_gen_addi_i32(trap, trap, rs2);\n\n }\n\n } else {\n\n TCGv t1, t2;\n\n rs2 = GET_FIELD_SP(insn, 0, 4);\n\n t1 = gen_load_gpr(dc, rs1);\n\n t2 = gen_load_gpr(dc, rs2);\n\n tcg_gen_add_tl(t1, t1, t2);\n\n tcg_gen_trunc_tl_i32(trap, t1);\n\n }\n\n if (mask != 0) {\n\n tcg_gen_andi_i32(trap, trap, mask);\n\n tcg_gen_addi_i32(trap, trap, TT_TRAP);\n\n }\n\n\n\n gen_helper_raise_exception(cpu_env, trap);\n\n tcg_temp_free_i32(trap);\n\n\n\n if (cond == 8) {\n\n /* An unconditional trap ends the TB. */\n\n dc->is_br = 1;\n\n goto jmp_insn;\n\n } else {\n\n /* A conditional trap falls through to the next insn. */\n\n gen_set_label(l1);\n\n break;\n\n }\n\n } else if (xop == 0x28) {\n\n rs1 = GET_FIELD(insn, 13, 17);\n\n switch(rs1) {\n\n case 0: /* rdy */\n\n#ifndef TARGET_SPARC64\n\n case 0x01 ... 0x0e: /* undefined in the SPARCv8\n\n manual, rdy on the microSPARC\n\n II */\n\n case 0x0f: /* stbar in the SPARCv8 manual,\n\n rdy on the microSPARC II */\n\n case 0x10 ... 0x1f: /* implementation-dependent in the\n\n SPARCv8 manual, rdy on the\n\n microSPARC II */\n\n /* Read Asr17 */\n\n if (rs1 == 0x11 && dc->def->features & CPU_FEATURE_ASR17) {\n\n TCGv t = gen_dest_gpr(dc, rd);\n\n /* Read Asr17 for a Leon3 monoprocessor */\n\n tcg_gen_movi_tl(t, (1 << 8) | (dc->def->nwindows - 1));\n\n gen_store_gpr(dc, rd, t);\n\n break;\n\n }\n\n#endif\n\n gen_store_gpr(dc, rd, cpu_y);\n\n break;\n\n#ifdef TARGET_SPARC64\n\n case 0x2: /* V9 rdccr */\n\n update_psr(dc);\n\n gen_helper_rdccr(cpu_dst, cpu_env);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x3: /* V9 rdasi */\n\n tcg_gen_ext_i32_tl(cpu_dst, cpu_asi);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x4: /* V9 rdtick */\n\n {\n\n TCGv_ptr r_tickptr;\n\n\n\n r_tickptr = tcg_temp_new_ptr();\n\n tcg_gen_ld_ptr(r_tickptr, cpu_env,\n\n offsetof(CPUSPARCState, tick));\n\n gen_helper_tick_get_count(cpu_dst, r_tickptr);\n\n tcg_temp_free_ptr(r_tickptr);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n }\n\n break;\n\n case 0x5: /* V9 rdpc */\n\n {\n\n TCGv t = gen_dest_gpr(dc, rd);\n\n if (unlikely(AM_CHECK(dc))) {\n\n tcg_gen_movi_tl(t, dc->pc & 0xffffffffULL);\n\n } else {\n\n tcg_gen_movi_tl(t, dc->pc);\n\n }\n\n gen_store_gpr(dc, rd, t);\n\n }\n\n break;\n\n case 0x6: /* V9 rdfprs */\n\n tcg_gen_ext_i32_tl(cpu_dst, cpu_fprs);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0xf: /* V9 membar */\n\n break; /* no effect */\n\n case 0x13: /* Graphics Status */\n\n if (gen_trap_ifnofpu(dc)) {\n\n goto jmp_insn;\n\n }\n\n gen_store_gpr(dc, rd, cpu_gsr);\n\n break;\n\n case 0x16: /* Softint */\n\n tcg_gen_ext_i32_tl(cpu_dst, cpu_softint);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x17: /* Tick compare */\n\n gen_store_gpr(dc, rd, cpu_tick_cmpr);\n\n break;\n\n case 0x18: /* System tick */\n\n {\n\n TCGv_ptr r_tickptr;\n\n\n\n r_tickptr = tcg_temp_new_ptr();\n\n tcg_gen_ld_ptr(r_tickptr, cpu_env,\n\n offsetof(CPUSPARCState, stick));\n\n gen_helper_tick_get_count(cpu_dst, r_tickptr);\n\n tcg_temp_free_ptr(r_tickptr);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n }\n\n break;\n\n case 0x19: /* System tick compare */\n\n gen_store_gpr(dc, rd, cpu_stick_cmpr);\n\n break;\n\n case 0x10: /* Performance Control */\n\n case 0x11: /* Performance Instrumentation Counter */\n\n case 0x12: /* Dispatch Control */\n\n case 0x14: /* Softint set, WO */\n\n case 0x15: /* Softint clear, WO */\n\n#endif\n\n default:\n\n goto illegal_insn;\n\n }\n\n#if !defined(CONFIG_USER_ONLY)\n\n } else if (xop == 0x29) { /* rdpsr / UA2005 rdhpr */\n\n#ifndef TARGET_SPARC64\n\n if (!supervisor(dc)) {\n\n goto priv_insn;\n\n }\n\n update_psr(dc);\n\n gen_helper_rdpsr(cpu_dst, cpu_env);\n\n#else\n\n CHECK_IU_FEATURE(dc, HYPV);\n\n if (!hypervisor(dc))\n\n goto priv_insn;\n\n rs1 = GET_FIELD(insn, 13, 17);\n\n switch (rs1) {\n\n case 0: // hpstate\n\n // gen_op_rdhpstate();\n\n break;\n\n case 1: // htstate\n\n // gen_op_rdhtstate();\n\n break;\n\n case 3: // hintp\n\n tcg_gen_mov_tl(cpu_dst, cpu_hintp);\n\n break;\n\n case 5: // htba\n\n tcg_gen_mov_tl(cpu_dst, cpu_htba);\n\n break;\n\n case 6: // hver\n\n tcg_gen_mov_tl(cpu_dst, cpu_hver);\n\n break;\n\n case 31: // hstick_cmpr\n\n tcg_gen_mov_tl(cpu_dst, cpu_hstick_cmpr);\n\n break;\n\n default:\n\n goto illegal_insn;\n\n }\n\n#endif\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n } else if (xop == 0x2a) { /* rdwim / V9 rdpr */\n\n if (!supervisor(dc))\n\n goto priv_insn;\n\n#ifdef TARGET_SPARC64\n\n rs1 = GET_FIELD(insn, 13, 17);\n\n switch (rs1) {\n\n case 0: // tpc\n\n {\n\n TCGv_ptr r_tsptr;\n\n\n\n r_tsptr = tcg_temp_new_ptr();\n\n gen_load_trap_state_at_tl(r_tsptr, cpu_env);\n\n tcg_gen_ld_tl(cpu_tmp0, r_tsptr,\n\n offsetof(trap_state, tpc));\n\n tcg_temp_free_ptr(r_tsptr);\n\n }\n\n break;\n\n case 1: // tnpc\n\n {\n\n TCGv_ptr r_tsptr;\n\n\n\n r_tsptr = tcg_temp_new_ptr();\n\n gen_load_trap_state_at_tl(r_tsptr, cpu_env);\n\n tcg_gen_ld_tl(cpu_tmp0, r_tsptr,\n\n offsetof(trap_state, tnpc));\n\n tcg_temp_free_ptr(r_tsptr);\n\n }\n\n break;\n\n case 2: // tstate\n\n {\n\n TCGv_ptr r_tsptr;\n\n\n\n r_tsptr = tcg_temp_new_ptr();\n\n gen_load_trap_state_at_tl(r_tsptr, cpu_env);\n\n tcg_gen_ld_tl(cpu_tmp0, r_tsptr,\n\n offsetof(trap_state, tstate));\n\n tcg_temp_free_ptr(r_tsptr);\n\n }\n\n break;\n\n case 3: // tt\n\n {\n\n TCGv_ptr r_tsptr;\n\n\n\n r_tsptr = tcg_temp_new_ptr();\n\n gen_load_trap_state_at_tl(r_tsptr, cpu_env);\n\n tcg_gen_ld_i32(cpu_tmp32, r_tsptr,\n\n offsetof(trap_state, tt));\n\n tcg_temp_free_ptr(r_tsptr);\n\n tcg_gen_ext_i32_tl(cpu_tmp0, cpu_tmp32);\n\n }\n\n break;\n\n case 4: // tick\n\n {\n\n TCGv_ptr r_tickptr;\n\n\n\n r_tickptr = tcg_temp_new_ptr();\n\n tcg_gen_ld_ptr(r_tickptr, cpu_env,\n\n offsetof(CPUSPARCState, tick));\n\n gen_helper_tick_get_count(cpu_tmp0, r_tickptr);\n\n tcg_temp_free_ptr(r_tickptr);\n\n }\n\n break;\n\n case 5: // tba\n\n tcg_gen_mov_tl(cpu_tmp0, cpu_tbr);\n\n break;\n\n case 6: // pstate\n\n tcg_gen_ld_i32(cpu_tmp32, cpu_env,\n\n offsetof(CPUSPARCState, pstate));\n\n tcg_gen_ext_i32_tl(cpu_tmp0, cpu_tmp32);\n\n break;\n\n case 7: // tl\n\n tcg_gen_ld_i32(cpu_tmp32, cpu_env,\n\n offsetof(CPUSPARCState, tl));\n\n tcg_gen_ext_i32_tl(cpu_tmp0, cpu_tmp32);\n\n break;\n\n case 8: // pil\n\n tcg_gen_ld_i32(cpu_tmp32, cpu_env,\n\n offsetof(CPUSPARCState, psrpil));\n\n tcg_gen_ext_i32_tl(cpu_tmp0, cpu_tmp32);\n\n break;\n\n case 9: // cwp\n\n gen_helper_rdcwp(cpu_tmp0, cpu_env);\n\n break;\n\n case 10: // cansave\n\n tcg_gen_ld_i32(cpu_tmp32, cpu_env,\n\n offsetof(CPUSPARCState, cansave));\n\n tcg_gen_ext_i32_tl(cpu_tmp0, cpu_tmp32);\n\n break;\n\n case 11: // canrestore\n\n tcg_gen_ld_i32(cpu_tmp32, cpu_env,\n\n offsetof(CPUSPARCState, canrestore));\n\n tcg_gen_ext_i32_tl(cpu_tmp0, cpu_tmp32);\n\n break;\n\n case 12: // cleanwin\n\n tcg_gen_ld_i32(cpu_tmp32, cpu_env,\n\n offsetof(CPUSPARCState, cleanwin));\n\n tcg_gen_ext_i32_tl(cpu_tmp0, cpu_tmp32);\n\n break;\n\n case 13: // otherwin\n\n tcg_gen_ld_i32(cpu_tmp32, cpu_env,\n\n offsetof(CPUSPARCState, otherwin));\n\n tcg_gen_ext_i32_tl(cpu_tmp0, cpu_tmp32);\n\n break;\n\n case 14: // wstate\n\n tcg_gen_ld_i32(cpu_tmp32, cpu_env,\n\n offsetof(CPUSPARCState, wstate));\n\n tcg_gen_ext_i32_tl(cpu_tmp0, cpu_tmp32);\n\n break;\n\n case 16: // UA2005 gl\n\n CHECK_IU_FEATURE(dc, GL);\n\n tcg_gen_ld_i32(cpu_tmp32, cpu_env,\n\n offsetof(CPUSPARCState, gl));\n\n tcg_gen_ext_i32_tl(cpu_tmp0, cpu_tmp32);\n\n break;\n\n case 26: // UA2005 strand status\n\n CHECK_IU_FEATURE(dc, HYPV);\n\n if (!hypervisor(dc))\n\n goto priv_insn;\n\n tcg_gen_mov_tl(cpu_tmp0, cpu_ssr);\n\n break;\n\n case 31: // ver\n\n tcg_gen_mov_tl(cpu_tmp0, cpu_ver);\n\n break;\n\n case 15: // fq\n\n default:\n\n goto illegal_insn;\n\n }\n\n#else\n\n tcg_gen_ext_i32_tl(cpu_tmp0, cpu_wim);\n\n#endif\n\n gen_store_gpr(dc, rd, cpu_tmp0);\n\n break;\n\n } else if (xop == 0x2b) { /* rdtbr / V9 flushw */\n\n#ifdef TARGET_SPARC64\n\n save_state(dc);\n\n gen_helper_flushw(cpu_env);\n\n#else\n\n if (!supervisor(dc))\n\n goto priv_insn;\n\n gen_store_gpr(dc, rd, cpu_tbr);\n\n#endif\n\n break;\n\n#endif\n\n } else if (xop == 0x34) { /* FPU Operations */\n\n if (gen_trap_ifnofpu(dc)) {\n\n goto jmp_insn;\n\n }\n\n gen_op_clear_ieee_excp_and_FTT();\n\n rs1 = GET_FIELD(insn, 13, 17);\n\n rs2 = GET_FIELD(insn, 27, 31);\n\n xop = GET_FIELD(insn, 18, 26);\n\n save_state(dc);\n\n switch (xop) {\n\n case 0x1: /* fmovs */\n\n cpu_src1_32 = gen_load_fpr_F(dc, rs2);\n\n gen_store_fpr_F(dc, rd, cpu_src1_32);\n\n break;\n\n case 0x5: /* fnegs */\n\n gen_ne_fop_FF(dc, rd, rs2, gen_helper_fnegs);\n\n break;\n\n case 0x9: /* fabss */\n\n gen_ne_fop_FF(dc, rd, rs2, gen_helper_fabss);\n\n break;\n\n case 0x29: /* fsqrts */\n\n CHECK_FPU_FEATURE(dc, FSQRT);\n\n gen_fop_FF(dc, rd, rs2, gen_helper_fsqrts);\n\n break;\n\n case 0x2a: /* fsqrtd */\n\n CHECK_FPU_FEATURE(dc, FSQRT);\n\n gen_fop_DD(dc, rd, rs2, gen_helper_fsqrtd);\n\n break;\n\n case 0x2b: /* fsqrtq */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n gen_fop_QQ(dc, rd, rs2, gen_helper_fsqrtq);\n\n break;\n\n case 0x41: /* fadds */\n\n gen_fop_FFF(dc, rd, rs1, rs2, gen_helper_fadds);\n\n break;\n\n case 0x42: /* faddd */\n\n gen_fop_DDD(dc, rd, rs1, rs2, gen_helper_faddd);\n\n break;\n\n case 0x43: /* faddq */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n gen_fop_QQQ(dc, rd, rs1, rs2, gen_helper_faddq);\n\n break;\n\n case 0x45: /* fsubs */\n\n gen_fop_FFF(dc, rd, rs1, rs2, gen_helper_fsubs);\n\n break;\n\n case 0x46: /* fsubd */\n\n gen_fop_DDD(dc, rd, rs1, rs2, gen_helper_fsubd);\n\n break;\n\n case 0x47: /* fsubq */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n gen_fop_QQQ(dc, rd, rs1, rs2, gen_helper_fsubq);\n\n break;\n\n case 0x49: /* fmuls */\n\n CHECK_FPU_FEATURE(dc, FMUL);\n\n gen_fop_FFF(dc, rd, rs1, rs2, gen_helper_fmuls);\n\n break;\n\n case 0x4a: /* fmuld */\n\n CHECK_FPU_FEATURE(dc, FMUL);\n\n gen_fop_DDD(dc, rd, rs1, rs2, gen_helper_fmuld);\n\n break;\n\n case 0x4b: /* fmulq */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n CHECK_FPU_FEATURE(dc, FMUL);\n\n gen_fop_QQQ(dc, rd, rs1, rs2, gen_helper_fmulq);\n\n break;\n\n case 0x4d: /* fdivs */\n\n gen_fop_FFF(dc, rd, rs1, rs2, gen_helper_fdivs);\n\n break;\n\n case 0x4e: /* fdivd */\n\n gen_fop_DDD(dc, rd, rs1, rs2, gen_helper_fdivd);\n\n break;\n\n case 0x4f: /* fdivq */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n gen_fop_QQQ(dc, rd, rs1, rs2, gen_helper_fdivq);\n\n break;\n\n case 0x69: /* fsmuld */\n\n CHECK_FPU_FEATURE(dc, FSMULD);\n\n gen_fop_DFF(dc, rd, rs1, rs2, gen_helper_fsmuld);\n\n break;\n\n case 0x6e: /* fdmulq */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n gen_fop_QDD(dc, rd, rs1, rs2, gen_helper_fdmulq);\n\n break;\n\n case 0xc4: /* fitos */\n\n gen_fop_FF(dc, rd, rs2, gen_helper_fitos);\n\n break;\n\n case 0xc6: /* fdtos */\n\n gen_fop_FD(dc, rd, rs2, gen_helper_fdtos);\n\n break;\n\n case 0xc7: /* fqtos */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n gen_fop_FQ(dc, rd, rs2, gen_helper_fqtos);\n\n break;\n\n case 0xc8: /* fitod */\n\n gen_ne_fop_DF(dc, rd, rs2, gen_helper_fitod);\n\n break;\n\n case 0xc9: /* fstod */\n\n gen_ne_fop_DF(dc, rd, rs2, gen_helper_fstod);\n\n break;\n\n case 0xcb: /* fqtod */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n gen_fop_DQ(dc, rd, rs2, gen_helper_fqtod);\n\n break;\n\n case 0xcc: /* fitoq */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n gen_ne_fop_QF(dc, rd, rs2, gen_helper_fitoq);\n\n break;\n\n case 0xcd: /* fstoq */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n gen_ne_fop_QF(dc, rd, rs2, gen_helper_fstoq);\n\n break;\n\n case 0xce: /* fdtoq */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n gen_ne_fop_QD(dc, rd, rs2, gen_helper_fdtoq);\n\n break;\n\n case 0xd1: /* fstoi */\n\n gen_fop_FF(dc, rd, rs2, gen_helper_fstoi);\n\n break;\n\n case 0xd2: /* fdtoi */\n\n gen_fop_FD(dc, rd, rs2, gen_helper_fdtoi);\n\n break;\n\n case 0xd3: /* fqtoi */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n gen_fop_FQ(dc, rd, rs2, gen_helper_fqtoi);\n\n break;\n\n#ifdef TARGET_SPARC64\n\n case 0x2: /* V9 fmovd */\n\n cpu_src1_64 = gen_load_fpr_D(dc, rs2);\n\n gen_store_fpr_D(dc, rd, cpu_src1_64);\n\n break;\n\n case 0x3: /* V9 fmovq */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n gen_move_Q(rd, rs2);\n\n break;\n\n case 0x6: /* V9 fnegd */\n\n gen_ne_fop_DD(dc, rd, rs2, gen_helper_fnegd);\n\n break;\n\n case 0x7: /* V9 fnegq */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n gen_ne_fop_QQ(dc, rd, rs2, gen_helper_fnegq);\n\n break;\n\n case 0xa: /* V9 fabsd */\n\n gen_ne_fop_DD(dc, rd, rs2, gen_helper_fabsd);\n\n break;\n\n case 0xb: /* V9 fabsq */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n gen_ne_fop_QQ(dc, rd, rs2, gen_helper_fabsq);\n\n break;\n\n case 0x81: /* V9 fstox */\n\n gen_fop_DF(dc, rd, rs2, gen_helper_fstox);\n\n break;\n\n case 0x82: /* V9 fdtox */\n\n gen_fop_DD(dc, rd, rs2, gen_helper_fdtox);\n\n break;\n\n case 0x83: /* V9 fqtox */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n gen_fop_DQ(dc, rd, rs2, gen_helper_fqtox);\n\n break;\n\n case 0x84: /* V9 fxtos */\n\n gen_fop_FD(dc, rd, rs2, gen_helper_fxtos);\n\n break;\n\n case 0x88: /* V9 fxtod */\n\n gen_fop_DD(dc, rd, rs2, gen_helper_fxtod);\n\n break;\n\n case 0x8c: /* V9 fxtoq */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n gen_ne_fop_QD(dc, rd, rs2, gen_helper_fxtoq);\n\n break;\n\n#endif\n\n default:\n\n goto illegal_insn;\n\n }\n\n } else if (xop == 0x35) { /* FPU Operations */\n\n#ifdef TARGET_SPARC64\n\n int cond;\n\n#endif\n\n if (gen_trap_ifnofpu(dc)) {\n\n goto jmp_insn;\n\n }\n\n gen_op_clear_ieee_excp_and_FTT();\n\n rs1 = GET_FIELD(insn, 13, 17);\n\n rs2 = GET_FIELD(insn, 27, 31);\n\n xop = GET_FIELD(insn, 18, 26);\n\n save_state(dc);\n\n\n\n#ifdef TARGET_SPARC64\n\n#define FMOVR(sz) \\\n\n do { \\\n\n DisasCompare cmp; \\\n\n cond = GET_FIELD_SP(insn, 14, 17); \\\n\n cpu_src1 = get_src1(dc, insn); \\\n\n gen_compare_reg(&cmp, cond, cpu_src1); \\\n\n gen_fmov##sz(dc, &cmp, rd, rs2); \\\n\n free_compare(&cmp); \\\n\n } while (0)\n\n\n\n if ((xop & 0x11f) == 0x005) { /* V9 fmovsr */\n\n FMOVR(s);\n\n break;\n\n } else if ((xop & 0x11f) == 0x006) { // V9 fmovdr\n\n FMOVR(d);\n\n break;\n\n } else if ((xop & 0x11f) == 0x007) { // V9 fmovqr\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n FMOVR(q);\n\n break;\n\n }\n\n#undef FMOVR\n\n#endif\n\n switch (xop) {\n\n#ifdef TARGET_SPARC64\n\n#define FMOVCC(fcc, sz) \\\n\n do { \\\n\n DisasCompare cmp; \\\n\n cond = GET_FIELD_SP(insn, 14, 17); \\\n\n gen_fcompare(&cmp, fcc, cond); \\\n\n gen_fmov##sz(dc, &cmp, rd, rs2); \\\n\n free_compare(&cmp); \\\n\n } while (0)\n\n\n\n case 0x001: /* V9 fmovscc %fcc0 */\n\n FMOVCC(0, s);\n\n break;\n\n case 0x002: /* V9 fmovdcc %fcc0 */\n\n FMOVCC(0, d);\n\n break;\n\n case 0x003: /* V9 fmovqcc %fcc0 */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n FMOVCC(0, q);\n\n break;\n\n case 0x041: /* V9 fmovscc %fcc1 */\n\n FMOVCC(1, s);\n\n break;\n\n case 0x042: /* V9 fmovdcc %fcc1 */\n\n FMOVCC(1, d);\n\n break;\n\n case 0x043: /* V9 fmovqcc %fcc1 */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n FMOVCC(1, q);\n\n break;\n\n case 0x081: /* V9 fmovscc %fcc2 */\n\n FMOVCC(2, s);\n\n break;\n\n case 0x082: /* V9 fmovdcc %fcc2 */\n\n FMOVCC(2, d);\n\n break;\n\n case 0x083: /* V9 fmovqcc %fcc2 */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n FMOVCC(2, q);\n\n break;\n\n case 0x0c1: /* V9 fmovscc %fcc3 */\n\n FMOVCC(3, s);\n\n break;\n\n case 0x0c2: /* V9 fmovdcc %fcc3 */\n\n FMOVCC(3, d);\n\n break;\n\n case 0x0c3: /* V9 fmovqcc %fcc3 */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n FMOVCC(3, q);\n\n break;\n\n#undef FMOVCC\n\n#define FMOVCC(xcc, sz) \\\n\n do { \\\n\n DisasCompare cmp; \\\n\n cond = GET_FIELD_SP(insn, 14, 17); \\\n\n gen_compare(&cmp, xcc, cond, dc); \\\n\n gen_fmov##sz(dc, &cmp, rd, rs2); \\\n\n free_compare(&cmp); \\\n\n } while (0)\n\n\n\n case 0x101: /* V9 fmovscc %icc */\n\n FMOVCC(0, s);\n\n break;\n\n case 0x102: /* V9 fmovdcc %icc */\n\n FMOVCC(0, d);\n\n break;\n\n case 0x103: /* V9 fmovqcc %icc */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n FMOVCC(0, q);\n\n break;\n\n case 0x181: /* V9 fmovscc %xcc */\n\n FMOVCC(1, s);\n\n break;\n\n case 0x182: /* V9 fmovdcc %xcc */\n\n FMOVCC(1, d);\n\n break;\n\n case 0x183: /* V9 fmovqcc %xcc */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n FMOVCC(1, q);\n\n break;\n\n#undef FMOVCC\n\n#endif\n\n case 0x51: /* fcmps, V9 %fcc */\n\n cpu_src1_32 = gen_load_fpr_F(dc, rs1);\n\n cpu_src2_32 = gen_load_fpr_F(dc, rs2);\n\n gen_op_fcmps(rd & 3, cpu_src1_32, cpu_src2_32);\n\n break;\n\n case 0x52: /* fcmpd, V9 %fcc */\n\n cpu_src1_64 = gen_load_fpr_D(dc, rs1);\n\n cpu_src2_64 = gen_load_fpr_D(dc, rs2);\n\n gen_op_fcmpd(rd & 3, cpu_src1_64, cpu_src2_64);\n\n break;\n\n case 0x53: /* fcmpq, V9 %fcc */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n gen_op_load_fpr_QT0(QFPREG(rs1));\n\n gen_op_load_fpr_QT1(QFPREG(rs2));\n\n gen_op_fcmpq(rd & 3);\n\n break;\n\n case 0x55: /* fcmpes, V9 %fcc */\n\n cpu_src1_32 = gen_load_fpr_F(dc, rs1);\n\n cpu_src2_32 = gen_load_fpr_F(dc, rs2);\n\n gen_op_fcmpes(rd & 3, cpu_src1_32, cpu_src2_32);\n\n break;\n\n case 0x56: /* fcmped, V9 %fcc */\n\n cpu_src1_64 = gen_load_fpr_D(dc, rs1);\n\n cpu_src2_64 = gen_load_fpr_D(dc, rs2);\n\n gen_op_fcmped(rd & 3, cpu_src1_64, cpu_src2_64);\n\n break;\n\n case 0x57: /* fcmpeq, V9 %fcc */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n gen_op_load_fpr_QT0(QFPREG(rs1));\n\n gen_op_load_fpr_QT1(QFPREG(rs2));\n\n gen_op_fcmpeq(rd & 3);\n\n break;\n\n default:\n\n goto illegal_insn;\n\n }\n\n } else if (xop == 0x2) {\n\n TCGv dst = gen_dest_gpr(dc, rd);\n\n rs1 = GET_FIELD(insn, 13, 17);\n\n if (rs1 == 0) {\n\n /* clr/mov shortcut : or %g0, x, y -> mov x, y */\n\n if (IS_IMM) { /* immediate */\n\n simm = GET_FIELDs(insn, 19, 31);\n\n tcg_gen_movi_tl(dst, simm);\n\n gen_store_gpr(dc, rd, dst);\n\n } else { /* register */\n\n rs2 = GET_FIELD(insn, 27, 31);\n\n if (rs2 == 0) {\n\n tcg_gen_movi_tl(dst, 0);\n\n gen_store_gpr(dc, rd, dst);\n\n } else {\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n gen_store_gpr(dc, rd, cpu_src2);\n\n }\n\n }\n\n } else {\n\n cpu_src1 = get_src1(dc, insn);\n\n if (IS_IMM) { /* immediate */\n\n simm = GET_FIELDs(insn, 19, 31);\n\n tcg_gen_ori_tl(dst, cpu_src1, simm);\n\n gen_store_gpr(dc, rd, dst);\n\n } else { /* register */\n\n rs2 = GET_FIELD(insn, 27, 31);\n\n if (rs2 == 0) {\n\n /* mov shortcut: or x, %g0, y -> mov x, y */\n\n gen_store_gpr(dc, rd, cpu_src1);\n\n } else {\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n tcg_gen_or_tl(dst, cpu_src1, cpu_src2);\n\n gen_store_gpr(dc, rd, dst);\n\n }\n\n }\n\n }\n\n#ifdef TARGET_SPARC64\n\n } else if (xop == 0x25) { /* sll, V9 sllx */\n\n cpu_src1 = get_src1(dc, insn);\n\n if (IS_IMM) { /* immediate */\n\n simm = GET_FIELDs(insn, 20, 31);\n\n if (insn & (1 << 12)) {\n\n tcg_gen_shli_i64(cpu_dst, cpu_src1, simm & 0x3f);\n\n } else {\n\n tcg_gen_shli_i64(cpu_dst, cpu_src1, simm & 0x1f);\n\n }\n\n } else { /* register */\n\n rs2 = GET_FIELD(insn, 27, 31);\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n if (insn & (1 << 12)) {\n\n tcg_gen_andi_i64(cpu_tmp0, cpu_src2, 0x3f);\n\n } else {\n\n tcg_gen_andi_i64(cpu_tmp0, cpu_src2, 0x1f);\n\n }\n\n tcg_gen_shl_i64(cpu_dst, cpu_src1, cpu_tmp0);\n\n }\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n } else if (xop == 0x26) { /* srl, V9 srlx */\n\n cpu_src1 = get_src1(dc, insn);\n\n if (IS_IMM) { /* immediate */\n\n simm = GET_FIELDs(insn, 20, 31);\n\n if (insn & (1 << 12)) {\n\n tcg_gen_shri_i64(cpu_dst, cpu_src1, simm & 0x3f);\n\n } else {\n\n tcg_gen_andi_i64(cpu_dst, cpu_src1, 0xffffffffULL);\n\n tcg_gen_shri_i64(cpu_dst, cpu_dst, simm & 0x1f);\n\n }\n\n } else { /* register */\n\n rs2 = GET_FIELD(insn, 27, 31);\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n if (insn & (1 << 12)) {\n\n tcg_gen_andi_i64(cpu_tmp0, cpu_src2, 0x3f);\n\n tcg_gen_shr_i64(cpu_dst, cpu_src1, cpu_tmp0);\n\n } else {\n\n tcg_gen_andi_i64(cpu_tmp0, cpu_src2, 0x1f);\n\n tcg_gen_andi_i64(cpu_dst, cpu_src1, 0xffffffffULL);\n\n tcg_gen_shr_i64(cpu_dst, cpu_dst, cpu_tmp0);\n\n }\n\n }\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n } else if (xop == 0x27) { /* sra, V9 srax */\n\n cpu_src1 = get_src1(dc, insn);\n\n if (IS_IMM) { /* immediate */\n\n simm = GET_FIELDs(insn, 20, 31);\n\n if (insn & (1 << 12)) {\n\n tcg_gen_sari_i64(cpu_dst, cpu_src1, simm & 0x3f);\n\n } else {\n\n tcg_gen_ext32s_i64(cpu_dst, cpu_src1);\n\n tcg_gen_sari_i64(cpu_dst, cpu_dst, simm & 0x1f);\n\n }\n\n } else { /* register */\n\n rs2 = GET_FIELD(insn, 27, 31);\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n if (insn & (1 << 12)) {\n\n tcg_gen_andi_i64(cpu_tmp0, cpu_src2, 0x3f);\n\n tcg_gen_sar_i64(cpu_dst, cpu_src1, cpu_tmp0);\n\n } else {\n\n tcg_gen_andi_i64(cpu_tmp0, cpu_src2, 0x1f);\n\n tcg_gen_ext32s_i64(cpu_dst, cpu_src1);\n\n tcg_gen_sar_i64(cpu_dst, cpu_dst, cpu_tmp0);\n\n }\n\n }\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n#endif\n\n } else if (xop < 0x36) {\n\n if (xop < 0x20) {\n\n cpu_src1 = get_src1(dc, insn);\n\n cpu_src2 = get_src2(dc, insn);\n\n switch (xop & ~0x10) {\n\n case 0x0: /* add */\n\n if (xop & 0x10) {\n\n gen_op_add_cc(cpu_dst, cpu_src1, cpu_src2);\n\n tcg_gen_movi_i32(cpu_cc_op, CC_OP_ADD);\n\n dc->cc_op = CC_OP_ADD;\n\n } else {\n\n tcg_gen_add_tl(cpu_dst, cpu_src1, cpu_src2);\n\n }\n\n break;\n\n case 0x1: /* and */\n\n tcg_gen_and_tl(cpu_dst, cpu_src1, cpu_src2);\n\n if (xop & 0x10) {\n\n tcg_gen_mov_tl(cpu_cc_dst, cpu_dst);\n\n tcg_gen_movi_i32(cpu_cc_op, CC_OP_LOGIC);\n\n dc->cc_op = CC_OP_LOGIC;\n\n }\n\n break;\n\n case 0x2: /* or */\n\n tcg_gen_or_tl(cpu_dst, cpu_src1, cpu_src2);\n\n if (xop & 0x10) {\n\n tcg_gen_mov_tl(cpu_cc_dst, cpu_dst);\n\n tcg_gen_movi_i32(cpu_cc_op, CC_OP_LOGIC);\n\n dc->cc_op = CC_OP_LOGIC;\n\n }\n\n break;\n\n case 0x3: /* xor */\n\n tcg_gen_xor_tl(cpu_dst, cpu_src1, cpu_src2);\n\n if (xop & 0x10) {\n\n tcg_gen_mov_tl(cpu_cc_dst, cpu_dst);\n\n tcg_gen_movi_i32(cpu_cc_op, CC_OP_LOGIC);\n\n dc->cc_op = CC_OP_LOGIC;\n\n }\n\n break;\n\n case 0x4: /* sub */\n\n if (xop & 0x10) {\n\n gen_op_sub_cc(cpu_dst, cpu_src1, cpu_src2);\n\n tcg_gen_movi_i32(cpu_cc_op, CC_OP_SUB);\n\n dc->cc_op = CC_OP_SUB;\n\n } else {\n\n tcg_gen_sub_tl(cpu_dst, cpu_src1, cpu_src2);\n\n }\n\n break;\n\n case 0x5: /* andn */\n\n tcg_gen_andc_tl(cpu_dst, cpu_src1, cpu_src2);\n\n if (xop & 0x10) {\n\n tcg_gen_mov_tl(cpu_cc_dst, cpu_dst);\n\n tcg_gen_movi_i32(cpu_cc_op, CC_OP_LOGIC);\n\n dc->cc_op = CC_OP_LOGIC;\n\n }\n\n break;\n\n case 0x6: /* orn */\n\n tcg_gen_orc_tl(cpu_dst, cpu_src1, cpu_src2);\n\n if (xop & 0x10) {\n\n tcg_gen_mov_tl(cpu_cc_dst, cpu_dst);\n\n tcg_gen_movi_i32(cpu_cc_op, CC_OP_LOGIC);\n\n dc->cc_op = CC_OP_LOGIC;\n\n }\n\n break;\n\n case 0x7: /* xorn */\n\n tcg_gen_eqv_tl(cpu_dst, cpu_src1, cpu_src2);\n\n if (xop & 0x10) {\n\n tcg_gen_mov_tl(cpu_cc_dst, cpu_dst);\n\n tcg_gen_movi_i32(cpu_cc_op, CC_OP_LOGIC);\n\n dc->cc_op = CC_OP_LOGIC;\n\n }\n\n break;\n\n case 0x8: /* addx, V9 addc */\n\n gen_op_addx_int(dc, cpu_dst, cpu_src1, cpu_src2,\n\n (xop & 0x10));\n\n break;\n\n#ifdef TARGET_SPARC64\n\n case 0x9: /* V9 mulx */\n\n tcg_gen_mul_i64(cpu_dst, cpu_src1, cpu_src2);\n\n break;\n\n#endif\n\n case 0xa: /* umul */\n\n CHECK_IU_FEATURE(dc, MUL);\n\n gen_op_umul(cpu_dst, cpu_src1, cpu_src2);\n\n if (xop & 0x10) {\n\n tcg_gen_mov_tl(cpu_cc_dst, cpu_dst);\n\n tcg_gen_movi_i32(cpu_cc_op, CC_OP_LOGIC);\n\n dc->cc_op = CC_OP_LOGIC;\n\n }\n\n break;\n\n case 0xb: /* smul */\n\n CHECK_IU_FEATURE(dc, MUL);\n\n gen_op_smul(cpu_dst, cpu_src1, cpu_src2);\n\n if (xop & 0x10) {\n\n tcg_gen_mov_tl(cpu_cc_dst, cpu_dst);\n\n tcg_gen_movi_i32(cpu_cc_op, CC_OP_LOGIC);\n\n dc->cc_op = CC_OP_LOGIC;\n\n }\n\n break;\n\n case 0xc: /* subx, V9 subc */\n\n gen_op_subx_int(dc, cpu_dst, cpu_src1, cpu_src2,\n\n (xop & 0x10));\n\n break;\n\n#ifdef TARGET_SPARC64\n\n case 0xd: /* V9 udivx */\n\n gen_helper_udivx(cpu_dst, cpu_env, cpu_src1, cpu_src2);\n\n break;\n\n#endif\n\n case 0xe: /* udiv */\n\n CHECK_IU_FEATURE(dc, DIV);\n\n if (xop & 0x10) {\n\n gen_helper_udiv_cc(cpu_dst, cpu_env, cpu_src1,\n\n cpu_src2);\n\n dc->cc_op = CC_OP_DIV;\n\n } else {\n\n gen_helper_udiv(cpu_dst, cpu_env, cpu_src1,\n\n cpu_src2);\n\n }\n\n break;\n\n case 0xf: /* sdiv */\n\n CHECK_IU_FEATURE(dc, DIV);\n\n if (xop & 0x10) {\n\n gen_helper_sdiv_cc(cpu_dst, cpu_env, cpu_src1,\n\n cpu_src2);\n\n dc->cc_op = CC_OP_DIV;\n\n } else {\n\n gen_helper_sdiv(cpu_dst, cpu_env, cpu_src1,\n\n cpu_src2);\n\n }\n\n break;\n\n default:\n\n goto illegal_insn;\n\n }\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n } else {\n\n cpu_src1 = get_src1(dc, insn);\n\n cpu_src2 = get_src2(dc, insn);\n\n switch (xop) {\n\n case 0x20: /* taddcc */\n\n gen_op_add_cc(cpu_dst, cpu_src1, cpu_src2);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n tcg_gen_movi_i32(cpu_cc_op, CC_OP_TADD);\n\n dc->cc_op = CC_OP_TADD;\n\n break;\n\n case 0x21: /* tsubcc */\n\n gen_op_sub_cc(cpu_dst, cpu_src1, cpu_src2);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n tcg_gen_movi_i32(cpu_cc_op, CC_OP_TSUB);\n\n dc->cc_op = CC_OP_TSUB;\n\n break;\n\n case 0x22: /* taddcctv */\n\n gen_helper_taddcctv(cpu_dst, cpu_env,\n\n cpu_src1, cpu_src2);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n dc->cc_op = CC_OP_TADDTV;\n\n break;\n\n case 0x23: /* tsubcctv */\n\n gen_helper_tsubcctv(cpu_dst, cpu_env,\n\n cpu_src1, cpu_src2);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n dc->cc_op = CC_OP_TSUBTV;\n\n break;\n\n case 0x24: /* mulscc */\n\n update_psr(dc);\n\n gen_op_mulscc(cpu_dst, cpu_src1, cpu_src2);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n tcg_gen_movi_i32(cpu_cc_op, CC_OP_ADD);\n\n dc->cc_op = CC_OP_ADD;\n\n break;\n\n#ifndef TARGET_SPARC64\n\n case 0x25: /* sll */\n\n if (IS_IMM) { /* immediate */\n\n simm = GET_FIELDs(insn, 20, 31);\n\n tcg_gen_shli_tl(cpu_dst, cpu_src1, simm & 0x1f);\n\n } else { /* register */\n\n tcg_gen_andi_tl(cpu_tmp0, cpu_src2, 0x1f);\n\n tcg_gen_shl_tl(cpu_dst, cpu_src1, cpu_tmp0);\n\n }\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x26: /* srl */\n\n if (IS_IMM) { /* immediate */\n\n simm = GET_FIELDs(insn, 20, 31);\n\n tcg_gen_shri_tl(cpu_dst, cpu_src1, simm & 0x1f);\n\n } else { /* register */\n\n tcg_gen_andi_tl(cpu_tmp0, cpu_src2, 0x1f);\n\n tcg_gen_shr_tl(cpu_dst, cpu_src1, cpu_tmp0);\n\n }\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x27: /* sra */\n\n if (IS_IMM) { /* immediate */\n\n simm = GET_FIELDs(insn, 20, 31);\n\n tcg_gen_sari_tl(cpu_dst, cpu_src1, simm & 0x1f);\n\n } else { /* register */\n\n tcg_gen_andi_tl(cpu_tmp0, cpu_src2, 0x1f);\n\n tcg_gen_sar_tl(cpu_dst, cpu_src1, cpu_tmp0);\n\n }\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n#endif\n\n case 0x30:\n\n {\n\n switch(rd) {\n\n case 0: /* wry */\n\n tcg_gen_xor_tl(cpu_tmp0, cpu_src1, cpu_src2);\n\n tcg_gen_andi_tl(cpu_y, cpu_tmp0, 0xffffffff);\n\n break;\n\n#ifndef TARGET_SPARC64\n\n case 0x01 ... 0x0f: /* undefined in the\n\n SPARCv8 manual, nop\n\n on the microSPARC\n\n II */\n\n case 0x10 ... 0x1f: /* implementation-dependent\n\n in the SPARCv8\n\n manual, nop on the\n\n microSPARC II */\n\n break;\n\n#else\n\n case 0x2: /* V9 wrccr */\n\n tcg_gen_xor_tl(cpu_dst, cpu_src1, cpu_src2);\n\n gen_helper_wrccr(cpu_env, cpu_dst);\n\n tcg_gen_movi_i32(cpu_cc_op, CC_OP_FLAGS);\n\n dc->cc_op = CC_OP_FLAGS;\n\n break;\n\n case 0x3: /* V9 wrasi */\n\n tcg_gen_xor_tl(cpu_dst, cpu_src1, cpu_src2);\n\n tcg_gen_andi_tl(cpu_dst, cpu_dst, 0xff);\n\n tcg_gen_trunc_tl_i32(cpu_asi, cpu_dst);\n\n break;\n\n case 0x6: /* V9 wrfprs */\n\n tcg_gen_xor_tl(cpu_dst, cpu_src1, cpu_src2);\n\n tcg_gen_trunc_tl_i32(cpu_fprs, cpu_dst);\n\n save_state(dc);\n\n gen_op_next_insn();\n\n tcg_gen_exit_tb(0);\n\n dc->is_br = 1;\n\n break;\n\n case 0xf: /* V9 sir, nop if user */\n\n#if !defined(CONFIG_USER_ONLY)\n\n if (supervisor(dc)) {\n\n ; // XXX\n\n }\n\n#endif\n\n break;\n\n case 0x13: /* Graphics Status */\n\n if (gen_trap_ifnofpu(dc)) {\n\n goto jmp_insn;\n\n }\n\n tcg_gen_xor_tl(cpu_gsr, cpu_src1, cpu_src2);\n\n break;\n\n case 0x14: /* Softint set */\n\n if (!supervisor(dc))\n\n goto illegal_insn;\n\n tcg_gen_xor_tl(cpu_tmp64, cpu_src1, cpu_src2);\n\n gen_helper_set_softint(cpu_env, cpu_tmp64);\n\n break;\n\n case 0x15: /* Softint clear */\n\n if (!supervisor(dc))\n\n goto illegal_insn;\n\n tcg_gen_xor_tl(cpu_tmp64, cpu_src1, cpu_src2);\n\n gen_helper_clear_softint(cpu_env, cpu_tmp64);\n\n break;\n\n case 0x16: /* Softint write */\n\n if (!supervisor(dc))\n\n goto illegal_insn;\n\n tcg_gen_xor_tl(cpu_tmp64, cpu_src1, cpu_src2);\n\n gen_helper_write_softint(cpu_env, cpu_tmp64);\n\n break;\n\n case 0x17: /* Tick compare */\n\n#if !defined(CONFIG_USER_ONLY)\n\n if (!supervisor(dc))\n\n goto illegal_insn;\n\n#endif\n\n {\n\n TCGv_ptr r_tickptr;\n\n\n\n tcg_gen_xor_tl(cpu_tick_cmpr, cpu_src1,\n\n cpu_src2);\n\n r_tickptr = tcg_temp_new_ptr();\n\n tcg_gen_ld_ptr(r_tickptr, cpu_env,\n\n offsetof(CPUSPARCState, tick));\n\n gen_helper_tick_set_limit(r_tickptr,\n\n cpu_tick_cmpr);\n\n tcg_temp_free_ptr(r_tickptr);\n\n }\n\n break;\n\n case 0x18: /* System tick */\n\n#if !defined(CONFIG_USER_ONLY)\n\n if (!supervisor(dc))\n\n goto illegal_insn;\n\n#endif\n\n {\n\n TCGv_ptr r_tickptr;\n\n\n\n tcg_gen_xor_tl(cpu_dst, cpu_src1,\n\n cpu_src2);\n\n r_tickptr = tcg_temp_new_ptr();\n\n tcg_gen_ld_ptr(r_tickptr, cpu_env,\n\n offsetof(CPUSPARCState, stick));\n\n gen_helper_tick_set_count(r_tickptr,\n\n cpu_dst);\n\n tcg_temp_free_ptr(r_tickptr);\n\n }\n\n break;\n\n case 0x19: /* System tick compare */\n\n#if !defined(CONFIG_USER_ONLY)\n\n if (!supervisor(dc))\n\n goto illegal_insn;\n\n#endif\n\n {\n\n TCGv_ptr r_tickptr;\n\n\n\n tcg_gen_xor_tl(cpu_stick_cmpr, cpu_src1,\n\n cpu_src2);\n\n r_tickptr = tcg_temp_new_ptr();\n\n tcg_gen_ld_ptr(r_tickptr, cpu_env,\n\n offsetof(CPUSPARCState, stick));\n\n gen_helper_tick_set_limit(r_tickptr,\n\n cpu_stick_cmpr);\n\n tcg_temp_free_ptr(r_tickptr);\n\n }\n\n break;\n\n\n\n case 0x10: /* Performance Control */\n\n case 0x11: /* Performance Instrumentation\n\n Counter */\n\n case 0x12: /* Dispatch Control */\n\n#endif\n\n default:\n\n goto illegal_insn;\n\n }\n\n }\n\n break;\n\n#if !defined(CONFIG_USER_ONLY)\n\n case 0x31: /* wrpsr, V9 saved, restored */\n\n {\n\n if (!supervisor(dc))\n\n goto priv_insn;\n\n#ifdef TARGET_SPARC64\n\n switch (rd) {\n\n case 0:\n\n gen_helper_saved(cpu_env);\n\n break;\n\n case 1:\n\n gen_helper_restored(cpu_env);\n\n break;\n\n case 2: /* UA2005 allclean */\n\n case 3: /* UA2005 otherw */\n\n case 4: /* UA2005 normalw */\n\n case 5: /* UA2005 invalw */\n\n // XXX\n\n default:\n\n goto illegal_insn;\n\n }\n\n#else\n\n tcg_gen_xor_tl(cpu_dst, cpu_src1, cpu_src2);\n\n gen_helper_wrpsr(cpu_env, cpu_dst);\n\n tcg_gen_movi_i32(cpu_cc_op, CC_OP_FLAGS);\n\n dc->cc_op = CC_OP_FLAGS;\n\n save_state(dc);\n\n gen_op_next_insn();\n\n tcg_gen_exit_tb(0);\n\n dc->is_br = 1;\n\n#endif\n\n }\n\n break;\n\n case 0x32: /* wrwim, V9 wrpr */\n\n {\n\n if (!supervisor(dc))\n\n goto priv_insn;\n\n tcg_gen_xor_tl(cpu_tmp0, cpu_src1, cpu_src2);\n\n#ifdef TARGET_SPARC64\n\n switch (rd) {\n\n case 0: // tpc\n\n {\n\n TCGv_ptr r_tsptr;\n\n\n\n r_tsptr = tcg_temp_new_ptr();\n\n gen_load_trap_state_at_tl(r_tsptr, cpu_env);\n\n tcg_gen_st_tl(cpu_tmp0, r_tsptr,\n\n offsetof(trap_state, tpc));\n\n tcg_temp_free_ptr(r_tsptr);\n\n }\n\n break;\n\n case 1: // tnpc\n\n {\n\n TCGv_ptr r_tsptr;\n\n\n\n r_tsptr = tcg_temp_new_ptr();\n\n gen_load_trap_state_at_tl(r_tsptr, cpu_env);\n\n tcg_gen_st_tl(cpu_tmp0, r_tsptr,\n\n offsetof(trap_state, tnpc));\n\n tcg_temp_free_ptr(r_tsptr);\n\n }\n\n break;\n\n case 2: // tstate\n\n {\n\n TCGv_ptr r_tsptr;\n\n\n\n r_tsptr = tcg_temp_new_ptr();\n\n gen_load_trap_state_at_tl(r_tsptr, cpu_env);\n\n tcg_gen_st_tl(cpu_tmp0, r_tsptr,\n\n offsetof(trap_state,\n\n tstate));\n\n tcg_temp_free_ptr(r_tsptr);\n\n }\n\n break;\n\n case 3: // tt\n\n {\n\n TCGv_ptr r_tsptr;\n\n\n\n r_tsptr = tcg_temp_new_ptr();\n\n gen_load_trap_state_at_tl(r_tsptr, cpu_env);\n\n tcg_gen_trunc_tl_i32(cpu_tmp32, cpu_tmp0);\n\n tcg_gen_st_i32(cpu_tmp32, r_tsptr,\n\n offsetof(trap_state, tt));\n\n tcg_temp_free_ptr(r_tsptr);\n\n }\n\n break;\n\n case 4: // tick\n\n {\n\n TCGv_ptr r_tickptr;\n\n\n\n r_tickptr = tcg_temp_new_ptr();\n\n tcg_gen_ld_ptr(r_tickptr, cpu_env,\n\n offsetof(CPUSPARCState, tick));\n\n gen_helper_tick_set_count(r_tickptr,\n\n cpu_tmp0);\n\n tcg_temp_free_ptr(r_tickptr);\n\n }\n\n break;\n\n case 5: // tba\n\n tcg_gen_mov_tl(cpu_tbr, cpu_tmp0);\n\n break;\n\n case 6: // pstate\n\n save_state(dc);\n\n gen_helper_wrpstate(cpu_env, cpu_tmp0);\n\n dc->npc = DYNAMIC_PC;\n\n break;\n\n case 7: // tl\n\n save_state(dc);\n\n tcg_gen_trunc_tl_i32(cpu_tmp32, cpu_tmp0);\n\n tcg_gen_st_i32(cpu_tmp32, cpu_env,\n\n offsetof(CPUSPARCState, tl));\n\n dc->npc = DYNAMIC_PC;\n\n break;\n\n case 8: // pil\n\n gen_helper_wrpil(cpu_env, cpu_tmp0);\n\n break;\n\n case 9: // cwp\n\n gen_helper_wrcwp(cpu_env, cpu_tmp0);\n\n break;\n\n case 10: // cansave\n\n tcg_gen_trunc_tl_i32(cpu_tmp32, cpu_tmp0);\n\n tcg_gen_st_i32(cpu_tmp32, cpu_env,\n\n offsetof(CPUSPARCState,\n\n cansave));\n\n break;\n\n case 11: // canrestore\n\n tcg_gen_trunc_tl_i32(cpu_tmp32, cpu_tmp0);\n\n tcg_gen_st_i32(cpu_tmp32, cpu_env,\n\n offsetof(CPUSPARCState,\n\n canrestore));\n\n break;\n\n case 12: // cleanwin\n\n tcg_gen_trunc_tl_i32(cpu_tmp32, cpu_tmp0);\n\n tcg_gen_st_i32(cpu_tmp32, cpu_env,\n\n offsetof(CPUSPARCState,\n\n cleanwin));\n\n break;\n\n case 13: // otherwin\n\n tcg_gen_trunc_tl_i32(cpu_tmp32, cpu_tmp0);\n\n tcg_gen_st_i32(cpu_tmp32, cpu_env,\n\n offsetof(CPUSPARCState,\n\n otherwin));\n\n break;\n\n case 14: // wstate\n\n tcg_gen_trunc_tl_i32(cpu_tmp32, cpu_tmp0);\n\n tcg_gen_st_i32(cpu_tmp32, cpu_env,\n\n offsetof(CPUSPARCState,\n\n wstate));\n\n break;\n\n case 16: // UA2005 gl\n\n CHECK_IU_FEATURE(dc, GL);\n\n tcg_gen_trunc_tl_i32(cpu_tmp32, cpu_tmp0);\n\n tcg_gen_st_i32(cpu_tmp32, cpu_env,\n\n offsetof(CPUSPARCState, gl));\n\n break;\n\n case 26: // UA2005 strand status\n\n CHECK_IU_FEATURE(dc, HYPV);\n\n if (!hypervisor(dc))\n\n goto priv_insn;\n\n tcg_gen_mov_tl(cpu_ssr, cpu_tmp0);\n\n break;\n\n default:\n\n goto illegal_insn;\n\n }\n\n#else\n\n tcg_gen_trunc_tl_i32(cpu_tmp32, cpu_tmp0);\n\n if (dc->def->nwindows != 32)\n\n tcg_gen_andi_tl(cpu_tmp32, cpu_tmp32,\n\n (1 << dc->def->nwindows) - 1);\n\n tcg_gen_mov_i32(cpu_wim, cpu_tmp32);\n\n#endif\n\n }\n\n break;\n\n case 0x33: /* wrtbr, UA2005 wrhpr */\n\n {\n\n#ifndef TARGET_SPARC64\n\n if (!supervisor(dc))\n\n goto priv_insn;\n\n tcg_gen_xor_tl(cpu_tbr, cpu_src1, cpu_src2);\n\n#else\n\n CHECK_IU_FEATURE(dc, HYPV);\n\n if (!hypervisor(dc))\n\n goto priv_insn;\n\n tcg_gen_xor_tl(cpu_tmp0, cpu_src1, cpu_src2);\n\n switch (rd) {\n\n case 0: // hpstate\n\n // XXX gen_op_wrhpstate();\n\n save_state(dc);\n\n gen_op_next_insn();\n\n tcg_gen_exit_tb(0);\n\n dc->is_br = 1;\n\n break;\n\n case 1: // htstate\n\n // XXX gen_op_wrhtstate();\n\n break;\n\n case 3: // hintp\n\n tcg_gen_mov_tl(cpu_hintp, cpu_tmp0);\n\n break;\n\n case 5: // htba\n\n tcg_gen_mov_tl(cpu_htba, cpu_tmp0);\n\n break;\n\n case 31: // hstick_cmpr\n\n {\n\n TCGv_ptr r_tickptr;\n\n\n\n tcg_gen_mov_tl(cpu_hstick_cmpr, cpu_tmp0);\n\n r_tickptr = tcg_temp_new_ptr();\n\n tcg_gen_ld_ptr(r_tickptr, cpu_env,\n\n offsetof(CPUSPARCState, hstick));\n\n gen_helper_tick_set_limit(r_tickptr,\n\n cpu_hstick_cmpr);\n\n tcg_temp_free_ptr(r_tickptr);\n\n }\n\n break;\n\n case 6: // hver readonly\n\n default:\n\n goto illegal_insn;\n\n }\n\n#endif\n\n }\n\n break;\n\n#endif\n\n#ifdef TARGET_SPARC64\n\n case 0x2c: /* V9 movcc */\n\n {\n\n int cc = GET_FIELD_SP(insn, 11, 12);\n\n int cond = GET_FIELD_SP(insn, 14, 17);\n\n DisasCompare cmp;\n\n TCGv dst;\n\n\n\n if (insn & (1 << 18)) {\n\n if (cc == 0) {\n\n gen_compare(&cmp, 0, cond, dc);\n\n } else if (cc == 2) {\n\n gen_compare(&cmp, 1, cond, dc);\n\n } else {\n\n goto illegal_insn;\n\n }\n\n } else {\n\n gen_fcompare(&cmp, cc, cond);\n\n }\n\n\n\n /* The get_src2 above loaded the normal 13-bit\n\n immediate field, not the 11-bit field we have\n\n in movcc. But it did handle the reg case. */\n\n if (IS_IMM) {\n\n simm = GET_FIELD_SPs(insn, 0, 10);\n\n tcg_gen_movi_tl(cpu_src2, simm);\n\n }\n\n\n\n dst = gen_load_gpr(dc, rd);\n\n tcg_gen_movcond_tl(cmp.cond, dst,\n\n cmp.c1, cmp.c2,\n\n cpu_src2, dst);\n\n free_compare(&cmp);\n\n gen_store_gpr(dc, rd, dst);\n\n break;\n\n }\n\n case 0x2d: /* V9 sdivx */\n\n gen_helper_sdivx(cpu_dst, cpu_env, cpu_src1, cpu_src2);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x2e: /* V9 popc */\n\n gen_helper_popc(cpu_dst, cpu_src2);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x2f: /* V9 movr */\n\n {\n\n int cond = GET_FIELD_SP(insn, 10, 12);\n\n DisasCompare cmp;\n\n TCGv dst;\n\n\n\n gen_compare_reg(&cmp, cond, cpu_src1);\n\n\n\n /* The get_src2 above loaded the normal 13-bit\n\n immediate field, not the 10-bit field we have\n\n in movr. But it did handle the reg case. */\n\n if (IS_IMM) {\n\n simm = GET_FIELD_SPs(insn, 0, 9);\n\n tcg_gen_movi_tl(cpu_src2, simm);\n\n }\n\n\n\n dst = gen_load_gpr(dc, rd);\n\n tcg_gen_movcond_tl(cmp.cond, dst,\n\n cmp.c1, cmp.c2,\n\n cpu_src2, dst);\n\n free_compare(&cmp);\n\n gen_store_gpr(dc, rd, dst);\n\n break;\n\n }\n\n#endif\n\n default:\n\n goto illegal_insn;\n\n }\n\n }\n\n } else if (xop == 0x36) { /* UltraSparc shutdown, VIS, V8 CPop1 */\n\n#ifdef TARGET_SPARC64\n\n int opf = GET_FIELD_SP(insn, 5, 13);\n\n rs1 = GET_FIELD(insn, 13, 17);\n\n rs2 = GET_FIELD(insn, 27, 31);\n\n if (gen_trap_ifnofpu(dc)) {\n\n goto jmp_insn;\n\n }\n\n\n\n switch (opf) {\n\n case 0x000: /* VIS I edge8cc */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_src1 = gen_load_gpr(dc, rs1);\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n gen_edge(dc, cpu_dst, cpu_src1, cpu_src2, 8, 1, 0);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x001: /* VIS II edge8n */\n\n CHECK_FPU_FEATURE(dc, VIS2);\n\n cpu_src1 = gen_load_gpr(dc, rs1);\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n gen_edge(dc, cpu_dst, cpu_src1, cpu_src2, 8, 0, 0);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x002: /* VIS I edge8lcc */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_src1 = gen_load_gpr(dc, rs1);\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n gen_edge(dc, cpu_dst, cpu_src1, cpu_src2, 8, 1, 1);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x003: /* VIS II edge8ln */\n\n CHECK_FPU_FEATURE(dc, VIS2);\n\n cpu_src1 = gen_load_gpr(dc, rs1);\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n gen_edge(dc, cpu_dst, cpu_src1, cpu_src2, 8, 0, 1);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x004: /* VIS I edge16cc */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_src1 = gen_load_gpr(dc, rs1);\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n gen_edge(dc, cpu_dst, cpu_src1, cpu_src2, 16, 1, 0);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x005: /* VIS II edge16n */\n\n CHECK_FPU_FEATURE(dc, VIS2);\n\n cpu_src1 = gen_load_gpr(dc, rs1);\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n gen_edge(dc, cpu_dst, cpu_src1, cpu_src2, 16, 0, 0);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x006: /* VIS I edge16lcc */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_src1 = gen_load_gpr(dc, rs1);\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n gen_edge(dc, cpu_dst, cpu_src1, cpu_src2, 16, 1, 1);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x007: /* VIS II edge16ln */\n\n CHECK_FPU_FEATURE(dc, VIS2);\n\n cpu_src1 = gen_load_gpr(dc, rs1);\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n gen_edge(dc, cpu_dst, cpu_src1, cpu_src2, 16, 0, 1);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x008: /* VIS I edge32cc */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_src1 = gen_load_gpr(dc, rs1);\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n gen_edge(dc, cpu_dst, cpu_src1, cpu_src2, 32, 1, 0);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x009: /* VIS II edge32n */\n\n CHECK_FPU_FEATURE(dc, VIS2);\n\n cpu_src1 = gen_load_gpr(dc, rs1);\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n gen_edge(dc, cpu_dst, cpu_src1, cpu_src2, 32, 0, 0);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x00a: /* VIS I edge32lcc */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_src1 = gen_load_gpr(dc, rs1);\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n gen_edge(dc, cpu_dst, cpu_src1, cpu_src2, 32, 1, 1);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x00b: /* VIS II edge32ln */\n\n CHECK_FPU_FEATURE(dc, VIS2);\n\n cpu_src1 = gen_load_gpr(dc, rs1);\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n gen_edge(dc, cpu_dst, cpu_src1, cpu_src2, 32, 0, 1);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x010: /* VIS I array8 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_src1 = gen_load_gpr(dc, rs1);\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n gen_helper_array8(cpu_dst, cpu_src1, cpu_src2);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x012: /* VIS I array16 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_src1 = gen_load_gpr(dc, rs1);\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n gen_helper_array8(cpu_dst, cpu_src1, cpu_src2);\n\n tcg_gen_shli_i64(cpu_dst, cpu_dst, 1);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x014: /* VIS I array32 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_src1 = gen_load_gpr(dc, rs1);\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n gen_helper_array8(cpu_dst, cpu_src1, cpu_src2);\n\n tcg_gen_shli_i64(cpu_dst, cpu_dst, 2);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x018: /* VIS I alignaddr */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_src1 = gen_load_gpr(dc, rs1);\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n gen_alignaddr(cpu_dst, cpu_src1, cpu_src2, 0);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x01a: /* VIS I alignaddrl */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_src1 = gen_load_gpr(dc, rs1);\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n gen_alignaddr(cpu_dst, cpu_src1, cpu_src2, 1);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x019: /* VIS II bmask */\n\n CHECK_FPU_FEATURE(dc, VIS2);\n\n cpu_src1 = gen_load_gpr(dc, rs1);\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n tcg_gen_add_tl(cpu_dst, cpu_src1, cpu_src2);\n\n tcg_gen_deposit_tl(cpu_gsr, cpu_gsr, cpu_dst, 32, 32);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x020: /* VIS I fcmple16 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_src1_64 = gen_load_fpr_D(dc, rs1);\n\n cpu_src2_64 = gen_load_fpr_D(dc, rs2);\n\n gen_helper_fcmple16(cpu_dst, cpu_src1_64, cpu_src2_64);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x022: /* VIS I fcmpne16 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_src1_64 = gen_load_fpr_D(dc, rs1);\n\n cpu_src2_64 = gen_load_fpr_D(dc, rs2);\n\n gen_helper_fcmpne16(cpu_dst, cpu_src1_64, cpu_src2_64);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x024: /* VIS I fcmple32 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_src1_64 = gen_load_fpr_D(dc, rs1);\n\n cpu_src2_64 = gen_load_fpr_D(dc, rs2);\n\n gen_helper_fcmple32(cpu_dst, cpu_src1_64, cpu_src2_64);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x026: /* VIS I fcmpne32 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_src1_64 = gen_load_fpr_D(dc, rs1);\n\n cpu_src2_64 = gen_load_fpr_D(dc, rs2);\n\n gen_helper_fcmpne32(cpu_dst, cpu_src1_64, cpu_src2_64);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x028: /* VIS I fcmpgt16 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_src1_64 = gen_load_fpr_D(dc, rs1);\n\n cpu_src2_64 = gen_load_fpr_D(dc, rs2);\n\n gen_helper_fcmpgt16(cpu_dst, cpu_src1_64, cpu_src2_64);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x02a: /* VIS I fcmpeq16 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_src1_64 = gen_load_fpr_D(dc, rs1);\n\n cpu_src2_64 = gen_load_fpr_D(dc, rs2);\n\n gen_helper_fcmpeq16(cpu_dst, cpu_src1_64, cpu_src2_64);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x02c: /* VIS I fcmpgt32 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_src1_64 = gen_load_fpr_D(dc, rs1);\n\n cpu_src2_64 = gen_load_fpr_D(dc, rs2);\n\n gen_helper_fcmpgt32(cpu_dst, cpu_src1_64, cpu_src2_64);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x02e: /* VIS I fcmpeq32 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_src1_64 = gen_load_fpr_D(dc, rs1);\n\n cpu_src2_64 = gen_load_fpr_D(dc, rs2);\n\n gen_helper_fcmpeq32(cpu_dst, cpu_src1_64, cpu_src2_64);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x031: /* VIS I fmul8x16 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DDD(dc, rd, rs1, rs2, gen_helper_fmul8x16);\n\n break;\n\n case 0x033: /* VIS I fmul8x16au */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DDD(dc, rd, rs1, rs2, gen_helper_fmul8x16au);\n\n break;\n\n case 0x035: /* VIS I fmul8x16al */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DDD(dc, rd, rs1, rs2, gen_helper_fmul8x16al);\n\n break;\n\n case 0x036: /* VIS I fmul8sux16 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DDD(dc, rd, rs1, rs2, gen_helper_fmul8sux16);\n\n break;\n\n case 0x037: /* VIS I fmul8ulx16 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DDD(dc, rd, rs1, rs2, gen_helper_fmul8ulx16);\n\n break;\n\n case 0x038: /* VIS I fmuld8sux16 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DDD(dc, rd, rs1, rs2, gen_helper_fmuld8sux16);\n\n break;\n\n case 0x039: /* VIS I fmuld8ulx16 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DDD(dc, rd, rs1, rs2, gen_helper_fmuld8ulx16);\n\n break;\n\n case 0x03a: /* VIS I fpack32 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_gsr_fop_DDD(dc, rd, rs1, rs2, gen_helper_fpack32);\n\n break;\n\n case 0x03b: /* VIS I fpack16 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_src1_64 = gen_load_fpr_D(dc, rs2);\n\n cpu_dst_32 = gen_dest_fpr_F();\n\n gen_helper_fpack16(cpu_dst_32, cpu_gsr, cpu_src1_64);\n\n gen_store_fpr_F(dc, rd, cpu_dst_32);\n\n break;\n\n case 0x03d: /* VIS I fpackfix */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_src1_64 = gen_load_fpr_D(dc, rs2);\n\n cpu_dst_32 = gen_dest_fpr_F();\n\n gen_helper_fpackfix(cpu_dst_32, cpu_gsr, cpu_src1_64);\n\n gen_store_fpr_F(dc, rd, cpu_dst_32);\n\n break;\n\n case 0x03e: /* VIS I pdist */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DDDD(dc, rd, rs1, rs2, gen_helper_pdist);\n\n break;\n\n case 0x048: /* VIS I faligndata */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_gsr_fop_DDD(dc, rd, rs1, rs2, gen_faligndata);\n\n break;\n\n case 0x04b: /* VIS I fpmerge */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DDD(dc, rd, rs1, rs2, gen_helper_fpmerge);\n\n break;\n\n case 0x04c: /* VIS II bshuffle */\n\n CHECK_FPU_FEATURE(dc, VIS2);\n\n gen_gsr_fop_DDD(dc, rd, rs1, rs2, gen_helper_bshuffle);\n\n break;\n\n case 0x04d: /* VIS I fexpand */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DDD(dc, rd, rs1, rs2, gen_helper_fexpand);\n\n break;\n\n case 0x050: /* VIS I fpadd16 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DDD(dc, rd, rs1, rs2, gen_helper_fpadd16);\n\n break;\n\n case 0x051: /* VIS I fpadd16s */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_FFF(dc, rd, rs1, rs2, gen_helper_fpadd16s);\n\n break;\n\n case 0x052: /* VIS I fpadd32 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DDD(dc, rd, rs1, rs2, gen_helper_fpadd32);\n\n break;\n\n case 0x053: /* VIS I fpadd32s */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_FFF(dc, rd, rs1, rs2, tcg_gen_add_i32);\n\n break;\n\n case 0x054: /* VIS I fpsub16 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DDD(dc, rd, rs1, rs2, gen_helper_fpsub16);\n\n break;\n\n case 0x055: /* VIS I fpsub16s */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_FFF(dc, rd, rs1, rs2, gen_helper_fpsub16s);\n\n break;\n\n case 0x056: /* VIS I fpsub32 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DDD(dc, rd, rs1, rs2, gen_helper_fpsub32);\n\n break;\n\n case 0x057: /* VIS I fpsub32s */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_FFF(dc, rd, rs1, rs2, tcg_gen_sub_i32);\n\n break;\n\n case 0x060: /* VIS I fzero */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_dst_64 = gen_dest_fpr_D();\n\n tcg_gen_movi_i64(cpu_dst_64, 0);\n\n gen_store_fpr_D(dc, rd, cpu_dst_64);\n\n break;\n\n case 0x061: /* VIS I fzeros */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_dst_32 = gen_dest_fpr_F();\n\n tcg_gen_movi_i32(cpu_dst_32, 0);\n\n gen_store_fpr_F(dc, rd, cpu_dst_32);\n\n break;\n\n case 0x062: /* VIS I fnor */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DDD(dc, rd, rs1, rs2, tcg_gen_nor_i64);\n\n break;\n\n case 0x063: /* VIS I fnors */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_FFF(dc, rd, rs1, rs2, tcg_gen_nor_i32);\n\n break;\n\n case 0x064: /* VIS I fandnot2 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DDD(dc, rd, rs1, rs2, tcg_gen_andc_i64);\n\n break;\n\n case 0x065: /* VIS I fandnot2s */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_FFF(dc, rd, rs1, rs2, tcg_gen_andc_i32);\n\n break;\n\n case 0x066: /* VIS I fnot2 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DD(dc, rd, rs2, tcg_gen_not_i64);\n\n break;\n\n case 0x067: /* VIS I fnot2s */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_FF(dc, rd, rs2, tcg_gen_not_i32);\n\n break;\n\n case 0x068: /* VIS I fandnot1 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DDD(dc, rd, rs2, rs1, tcg_gen_andc_i64);\n\n break;\n\n case 0x069: /* VIS I fandnot1s */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_FFF(dc, rd, rs2, rs1, tcg_gen_andc_i32);\n\n break;\n\n case 0x06a: /* VIS I fnot1 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DD(dc, rd, rs1, tcg_gen_not_i64);\n\n break;\n\n case 0x06b: /* VIS I fnot1s */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_FF(dc, rd, rs1, tcg_gen_not_i32);\n\n break;\n\n case 0x06c: /* VIS I fxor */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DDD(dc, rd, rs1, rs2, tcg_gen_xor_i64);\n\n break;\n\n case 0x06d: /* VIS I fxors */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_FFF(dc, rd, rs1, rs2, tcg_gen_xor_i32);\n\n break;\n\n case 0x06e: /* VIS I fnand */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DDD(dc, rd, rs1, rs2, tcg_gen_nand_i64);\n\n break;\n\n case 0x06f: /* VIS I fnands */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_FFF(dc, rd, rs1, rs2, tcg_gen_nand_i32);\n\n break;\n\n case 0x070: /* VIS I fand */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DDD(dc, rd, rs1, rs2, tcg_gen_and_i64);\n\n break;\n\n case 0x071: /* VIS I fands */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_FFF(dc, rd, rs1, rs2, tcg_gen_and_i32);\n\n break;\n\n case 0x072: /* VIS I fxnor */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DDD(dc, rd, rs1, rs2, tcg_gen_eqv_i64);\n\n break;\n\n case 0x073: /* VIS I fxnors */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_FFF(dc, rd, rs1, rs2, tcg_gen_eqv_i32);\n\n break;\n\n case 0x074: /* VIS I fsrc1 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_src1_64 = gen_load_fpr_D(dc, rs1);\n\n gen_store_fpr_D(dc, rd, cpu_src1_64);\n\n break;\n\n case 0x075: /* VIS I fsrc1s */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_src1_32 = gen_load_fpr_F(dc, rs1);\n\n gen_store_fpr_F(dc, rd, cpu_src1_32);\n\n break;\n\n case 0x076: /* VIS I fornot2 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DDD(dc, rd, rs1, rs2, tcg_gen_orc_i64);\n\n break;\n\n case 0x077: /* VIS I fornot2s */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_FFF(dc, rd, rs1, rs2, tcg_gen_orc_i32);\n\n break;\n\n case 0x078: /* VIS I fsrc2 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_src1_64 = gen_load_fpr_D(dc, rs2);\n\n gen_store_fpr_D(dc, rd, cpu_src1_64);\n\n break;\n\n case 0x079: /* VIS I fsrc2s */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_src1_32 = gen_load_fpr_F(dc, rs2);\n\n gen_store_fpr_F(dc, rd, cpu_src1_32);\n\n break;\n\n case 0x07a: /* VIS I fornot1 */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DDD(dc, rd, rs2, rs1, tcg_gen_orc_i64);\n\n break;\n\n case 0x07b: /* VIS I fornot1s */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_FFF(dc, rd, rs2, rs1, tcg_gen_orc_i32);\n\n break;\n\n case 0x07c: /* VIS I for */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_DDD(dc, rd, rs1, rs2, tcg_gen_or_i64);\n\n break;\n\n case 0x07d: /* VIS I fors */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n gen_ne_fop_FFF(dc, rd, rs1, rs2, tcg_gen_or_i32);\n\n break;\n\n case 0x07e: /* VIS I fone */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_dst_64 = gen_dest_fpr_D();\n\n tcg_gen_movi_i64(cpu_dst_64, -1);\n\n gen_store_fpr_D(dc, rd, cpu_dst_64);\n\n break;\n\n case 0x07f: /* VIS I fones */\n\n CHECK_FPU_FEATURE(dc, VIS1);\n\n cpu_dst_32 = gen_dest_fpr_F();\n\n tcg_gen_movi_i32(cpu_dst_32, -1);\n\n gen_store_fpr_F(dc, rd, cpu_dst_32);\n\n break;\n\n case 0x080: /* VIS I shutdown */\n\n case 0x081: /* VIS II siam */\n\n // XXX\n\n goto illegal_insn;\n\n default:\n\n goto illegal_insn;\n\n }\n\n#else\n\n goto ncp_insn;\n\n#endif\n\n } else if (xop == 0x37) { /* V8 CPop2, V9 impdep2 */\n\n#ifdef TARGET_SPARC64\n\n goto illegal_insn;\n\n#else\n\n goto ncp_insn;\n\n#endif\n\n#ifdef TARGET_SPARC64\n\n } else if (xop == 0x39) { /* V9 return */\n\n TCGv_i32 r_const;\n\n\n\n save_state(dc);\n\n cpu_src1 = get_src1(dc, insn);\n\n if (IS_IMM) { /* immediate */\n\n simm = GET_FIELDs(insn, 19, 31);\n\n tcg_gen_addi_tl(cpu_dst, cpu_src1, simm);\n\n } else { /* register */\n\n rs2 = GET_FIELD(insn, 27, 31);\n\n if (rs2) {\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n tcg_gen_add_tl(cpu_dst, cpu_src1, cpu_src2);\n\n } else {\n\n tcg_gen_mov_tl(cpu_dst, cpu_src1);\n\n }\n\n }\n\n gen_helper_restore(cpu_env);\n\n gen_mov_pc_npc(dc);\n\n r_const = tcg_const_i32(3);\n\n gen_helper_check_align(cpu_env, cpu_dst, r_const);\n\n tcg_temp_free_i32(r_const);\n\n tcg_gen_mov_tl(cpu_npc, cpu_dst);\n\n dc->npc = DYNAMIC_PC;\n\n goto jmp_insn;\n\n#endif\n\n } else {\n\n cpu_src1 = get_src1(dc, insn);\n\n if (IS_IMM) { /* immediate */\n\n simm = GET_FIELDs(insn, 19, 31);\n\n tcg_gen_addi_tl(cpu_dst, cpu_src1, simm);\n\n } else { /* register */\n\n rs2 = GET_FIELD(insn, 27, 31);\n\n if (rs2) {\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n tcg_gen_add_tl(cpu_dst, cpu_src1, cpu_src2);\n\n } else {\n\n tcg_gen_mov_tl(cpu_dst, cpu_src1);\n\n }\n\n }\n\n switch (xop) {\n\n case 0x38: /* jmpl */\n\n {\n\n TCGv t;\n\n TCGv_i32 r_const;\n\n\n\n t = gen_dest_gpr(dc, rd);\n\n tcg_gen_movi_tl(t, dc->pc);\n\n gen_store_gpr(dc, rd, t);\n\n gen_mov_pc_npc(dc);\n\n r_const = tcg_const_i32(3);\n\n gen_helper_check_align(cpu_env, cpu_dst, r_const);\n\n tcg_temp_free_i32(r_const);\n\n gen_address_mask(dc, cpu_dst);\n\n tcg_gen_mov_tl(cpu_npc, cpu_dst);\n\n dc->npc = DYNAMIC_PC;\n\n }\n\n goto jmp_insn;\n\n#if !defined(CONFIG_USER_ONLY) && !defined(TARGET_SPARC64)\n\n case 0x39: /* rett, V9 return */\n\n {\n\n TCGv_i32 r_const;\n\n\n\n if (!supervisor(dc))\n\n goto priv_insn;\n\n gen_mov_pc_npc(dc);\n\n r_const = tcg_const_i32(3);\n\n gen_helper_check_align(cpu_env, cpu_dst, r_const);\n\n tcg_temp_free_i32(r_const);\n\n tcg_gen_mov_tl(cpu_npc, cpu_dst);\n\n dc->npc = DYNAMIC_PC;\n\n gen_helper_rett(cpu_env);\n\n }\n\n goto jmp_insn;\n\n#endif\n\n case 0x3b: /* flush */\n\n if (!((dc)->def->features & CPU_FEATURE_FLUSH))\n\n goto unimp_flush;\n\n /* nop */\n\n break;\n\n case 0x3c: /* save */\n\n save_state(dc);\n\n gen_helper_save(cpu_env);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n case 0x3d: /* restore */\n\n save_state(dc);\n\n gen_helper_restore(cpu_env);\n\n gen_store_gpr(dc, rd, cpu_dst);\n\n break;\n\n#if !defined(CONFIG_USER_ONLY) && defined(TARGET_SPARC64)\n\n case 0x3e: /* V9 done/retry */\n\n {\n\n switch (rd) {\n\n case 0:\n\n if (!supervisor(dc))\n\n goto priv_insn;\n\n dc->npc = DYNAMIC_PC;\n\n dc->pc = DYNAMIC_PC;\n\n gen_helper_done(cpu_env);\n\n goto jmp_insn;\n\n case 1:\n\n if (!supervisor(dc))\n\n goto priv_insn;\n\n dc->npc = DYNAMIC_PC;\n\n dc->pc = DYNAMIC_PC;\n\n gen_helper_retry(cpu_env);\n\n goto jmp_insn;\n\n default:\n\n goto illegal_insn;\n\n }\n\n }\n\n break;\n\n#endif\n\n default:\n\n goto illegal_insn;\n\n }\n\n }\n\n break;\n\n }\n\n break;\n\n case 3: /* load/store instructions */\n\n {\n\n unsigned int xop = GET_FIELD(insn, 7, 12);\n\n\n\n cpu_src1 = get_src1(dc, insn);\n\n if (xop == 0x3c || xop == 0x3e) { // V9 casa/casxa\n\n rs2 = GET_FIELD(insn, 27, 31);\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n tcg_gen_mov_tl(cpu_addr, cpu_src1);\n\n } else if (IS_IMM) { /* immediate */\n\n simm = GET_FIELDs(insn, 19, 31);\n\n tcg_gen_addi_tl(cpu_addr, cpu_src1, simm);\n\n } else { /* register */\n\n rs2 = GET_FIELD(insn, 27, 31);\n\n if (rs2 != 0) {\n\n cpu_src2 = gen_load_gpr(dc, rs2);\n\n tcg_gen_add_tl(cpu_addr, cpu_src1, cpu_src2);\n\n } else {\n\n tcg_gen_mov_tl(cpu_addr, cpu_src1);\n\n }\n\n }\n\n if (xop < 4 || (xop > 7 && xop < 0x14 && xop != 0x0e) ||\n\n (xop > 0x17 && xop <= 0x1d ) ||\n\n (xop > 0x2c && xop <= 0x33) || xop == 0x1f || xop == 0x3d) {\n\n TCGv cpu_val = gen_dest_gpr(dc, rd);\n\n\n\n switch (xop) {\n\n case 0x0: /* ld, V9 lduw, load unsigned word */\n\n gen_address_mask(dc, cpu_addr);\n\n tcg_gen_qemu_ld32u(cpu_val, cpu_addr, dc->mem_idx);\n\n break;\n\n case 0x1: /* ldub, load unsigned byte */\n\n gen_address_mask(dc, cpu_addr);\n\n tcg_gen_qemu_ld8u(cpu_val, cpu_addr, dc->mem_idx);\n\n break;\n\n case 0x2: /* lduh, load unsigned halfword */\n\n gen_address_mask(dc, cpu_addr);\n\n tcg_gen_qemu_ld16u(cpu_val, cpu_addr, dc->mem_idx);\n\n break;\n\n case 0x3: /* ldd, load double word */\n\n if (rd & 1)\n\n goto illegal_insn;\n\n else {\n\n TCGv_i32 r_const;\n\n\n\n save_state(dc);\n\n r_const = tcg_const_i32(7);\n\n /* XXX remove alignment check */\n\n gen_helper_check_align(cpu_env, cpu_addr, r_const);\n\n tcg_temp_free_i32(r_const);\n\n gen_address_mask(dc, cpu_addr);\n\n tcg_gen_qemu_ld64(cpu_tmp64, cpu_addr, dc->mem_idx);\n\n tcg_gen_trunc_i64_tl(cpu_tmp0, cpu_tmp64);\n\n tcg_gen_andi_tl(cpu_tmp0, cpu_tmp0, 0xffffffffULL);\n\n gen_store_gpr(dc, rd + 1, cpu_tmp0);\n\n tcg_gen_shri_i64(cpu_tmp64, cpu_tmp64, 32);\n\n tcg_gen_trunc_i64_tl(cpu_val, cpu_tmp64);\n\n tcg_gen_andi_tl(cpu_val, cpu_val, 0xffffffffULL);\n\n }\n\n break;\n\n case 0x9: /* ldsb, load signed byte */\n\n gen_address_mask(dc, cpu_addr);\n\n tcg_gen_qemu_ld8s(cpu_val, cpu_addr, dc->mem_idx);\n\n break;\n\n case 0xa: /* ldsh, load signed halfword */\n\n gen_address_mask(dc, cpu_addr);\n\n tcg_gen_qemu_ld16s(cpu_val, cpu_addr, dc->mem_idx);\n\n break;\n\n case 0xd: /* ldstub -- XXX: should be atomically */\n\n {\n\n TCGv r_const;\n\n\n\n gen_address_mask(dc, cpu_addr);\n\n tcg_gen_qemu_ld8s(cpu_val, cpu_addr, dc->mem_idx);\n\n r_const = tcg_const_tl(0xff);\n\n tcg_gen_qemu_st8(r_const, cpu_addr, dc->mem_idx);\n\n tcg_temp_free(r_const);\n\n }\n\n break;\n\n case 0x0f: /* swap, swap register with memory. Also\n\n atomically */\n\n CHECK_IU_FEATURE(dc, SWAP);\n\n cpu_src1 = gen_load_gpr(dc, rd);\n\n gen_address_mask(dc, cpu_addr);\n\n tcg_gen_qemu_ld32u(cpu_tmp0, cpu_addr, dc->mem_idx);\n\n tcg_gen_qemu_st32(cpu_src1, cpu_addr, dc->mem_idx);\n\n tcg_gen_mov_tl(cpu_val, cpu_tmp0);\n\n break;\n\n#if !defined(CONFIG_USER_ONLY) || defined(TARGET_SPARC64)\n\n case 0x10: /* lda, V9 lduwa, load word alternate */\n\n#ifndef TARGET_SPARC64\n\n if (IS_IMM)\n\n goto illegal_insn;\n\n if (!supervisor(dc))\n\n goto priv_insn;\n\n#endif\n\n save_state(dc);\n\n gen_ld_asi(cpu_val, cpu_addr, insn, 4, 0);\n\n break;\n\n case 0x11: /* lduba, load unsigned byte alternate */\n\n#ifndef TARGET_SPARC64\n\n if (IS_IMM)\n\n goto illegal_insn;\n\n if (!supervisor(dc))\n\n goto priv_insn;\n\n#endif\n\n save_state(dc);\n\n gen_ld_asi(cpu_val, cpu_addr, insn, 1, 0);\n\n break;\n\n case 0x12: /* lduha, load unsigned halfword alternate */\n\n#ifndef TARGET_SPARC64\n\n if (IS_IMM)\n\n goto illegal_insn;\n\n if (!supervisor(dc))\n\n goto priv_insn;\n\n#endif\n\n save_state(dc);\n\n gen_ld_asi(cpu_val, cpu_addr, insn, 2, 0);\n\n break;\n\n case 0x13: /* ldda, load double word alternate */\n\n#ifndef TARGET_SPARC64\n\n if (IS_IMM)\n\n goto illegal_insn;\n\n if (!supervisor(dc))\n\n goto priv_insn;\n\n#endif\n\n if (rd & 1)\n\n goto illegal_insn;\n\n save_state(dc);\n\n gen_ldda_asi(dc, cpu_val, cpu_addr, insn, rd);\n\n goto skip_move;\n\n case 0x19: /* ldsba, load signed byte alternate */\n\n#ifndef TARGET_SPARC64\n\n if (IS_IMM)\n\n goto illegal_insn;\n\n if (!supervisor(dc))\n\n goto priv_insn;\n\n#endif\n\n save_state(dc);\n\n gen_ld_asi(cpu_val, cpu_addr, insn, 1, 1);\n\n break;\n\n case 0x1a: /* ldsha, load signed halfword alternate */\n\n#ifndef TARGET_SPARC64\n\n if (IS_IMM)\n\n goto illegal_insn;\n\n if (!supervisor(dc))\n\n goto priv_insn;\n\n#endif\n\n save_state(dc);\n\n gen_ld_asi(cpu_val, cpu_addr, insn, 2, 1);\n\n break;\n\n case 0x1d: /* ldstuba -- XXX: should be atomically */\n\n#ifndef TARGET_SPARC64\n\n if (IS_IMM)\n\n goto illegal_insn;\n\n if (!supervisor(dc))\n\n goto priv_insn;\n\n#endif\n\n save_state(dc);\n\n gen_ldstub_asi(cpu_val, cpu_addr, insn);\n\n break;\n\n case 0x1f: /* swapa, swap reg with alt. memory. Also\n\n atomically */\n\n CHECK_IU_FEATURE(dc, SWAP);\n\n#ifndef TARGET_SPARC64\n\n if (IS_IMM)\n\n goto illegal_insn;\n\n if (!supervisor(dc))\n\n goto priv_insn;\n\n#endif\n\n save_state(dc);\n\n cpu_src1 = gen_load_gpr(dc, rd);\n\n gen_swap_asi(cpu_val, cpu_src1, cpu_addr, insn);\n\n break;\n\n\n\n#ifndef TARGET_SPARC64\n\n case 0x30: /* ldc */\n\n case 0x31: /* ldcsr */\n\n case 0x33: /* lddc */\n\n goto ncp_insn;\n\n#endif\n\n#endif\n\n#ifdef TARGET_SPARC64\n\n case 0x08: /* V9 ldsw */\n\n gen_address_mask(dc, cpu_addr);\n\n tcg_gen_qemu_ld32s(cpu_val, cpu_addr, dc->mem_idx);\n\n break;\n\n case 0x0b: /* V9 ldx */\n\n gen_address_mask(dc, cpu_addr);\n\n tcg_gen_qemu_ld64(cpu_val, cpu_addr, dc->mem_idx);\n\n break;\n\n case 0x18: /* V9 ldswa */\n\n save_state(dc);\n\n gen_ld_asi(cpu_val, cpu_addr, insn, 4, 1);\n\n break;\n\n case 0x1b: /* V9 ldxa */\n\n save_state(dc);\n\n gen_ld_asi(cpu_val, cpu_addr, insn, 8, 0);\n\n break;\n\n case 0x2d: /* V9 prefetch, no effect */\n\n goto skip_move;\n\n case 0x30: /* V9 ldfa */\n\n if (gen_trap_ifnofpu(dc)) {\n\n goto jmp_insn;\n\n }\n\n save_state(dc);\n\n gen_ldf_asi(cpu_addr, insn, 4, rd);\n\n gen_update_fprs_dirty(rd);\n\n goto skip_move;\n\n case 0x33: /* V9 lddfa */\n\n if (gen_trap_ifnofpu(dc)) {\n\n goto jmp_insn;\n\n }\n\n save_state(dc);\n\n gen_ldf_asi(cpu_addr, insn, 8, DFPREG(rd));\n\n gen_update_fprs_dirty(DFPREG(rd));\n\n goto skip_move;\n\n case 0x3d: /* V9 prefetcha, no effect */\n\n goto skip_move;\n\n case 0x32: /* V9 ldqfa */\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n if (gen_trap_ifnofpu(dc)) {\n\n goto jmp_insn;\n\n }\n\n save_state(dc);\n\n gen_ldf_asi(cpu_addr, insn, 16, QFPREG(rd));\n\n gen_update_fprs_dirty(QFPREG(rd));\n\n goto skip_move;\n\n#endif\n\n default:\n\n goto illegal_insn;\n\n }\n\n gen_store_gpr(dc, rd, cpu_val);\n\n#if !defined(CONFIG_USER_ONLY) || defined(TARGET_SPARC64)\n\n skip_move: ;\n\n#endif\n\n } else if (xop >= 0x20 && xop < 0x24) {\n\n if (gen_trap_ifnofpu(dc)) {\n\n goto jmp_insn;\n\n }\n\n save_state(dc);\n\n switch (xop) {\n\n case 0x20: /* ldf, load fpreg */\n\n gen_address_mask(dc, cpu_addr);\n\n tcg_gen_qemu_ld32u(cpu_tmp0, cpu_addr, dc->mem_idx);\n\n cpu_dst_32 = gen_dest_fpr_F();\n\n tcg_gen_trunc_tl_i32(cpu_dst_32, cpu_tmp0);\n\n gen_store_fpr_F(dc, rd, cpu_dst_32);\n\n break;\n\n case 0x21: /* ldfsr, V9 ldxfsr */\n\n#ifdef TARGET_SPARC64\n\n gen_address_mask(dc, cpu_addr);\n\n if (rd == 1) {\n\n tcg_gen_qemu_ld64(cpu_tmp64, cpu_addr, dc->mem_idx);\n\n gen_helper_ldxfsr(cpu_env, cpu_tmp64);\n\n } else {\n\n tcg_gen_qemu_ld32u(cpu_tmp0, cpu_addr, dc->mem_idx);\n\n tcg_gen_trunc_tl_i32(cpu_tmp32, cpu_tmp0);\n\n gen_helper_ldfsr(cpu_env, cpu_tmp32);\n\n }\n\n#else\n\n {\n\n tcg_gen_qemu_ld32u(cpu_tmp32, cpu_addr, dc->mem_idx);\n\n gen_helper_ldfsr(cpu_env, cpu_tmp32);\n\n }\n\n#endif\n\n break;\n\n case 0x22: /* ldqf, load quad fpreg */\n\n {\n\n TCGv_i32 r_const;\n\n\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n r_const = tcg_const_i32(dc->mem_idx);\n\n gen_address_mask(dc, cpu_addr);\n\n gen_helper_ldqf(cpu_env, cpu_addr, r_const);\n\n tcg_temp_free_i32(r_const);\n\n gen_op_store_QT0_fpr(QFPREG(rd));\n\n gen_update_fprs_dirty(QFPREG(rd));\n\n }\n\n break;\n\n case 0x23: /* lddf, load double fpreg */\n\n gen_address_mask(dc, cpu_addr);\n\n cpu_dst_64 = gen_dest_fpr_D();\n\n tcg_gen_qemu_ld64(cpu_dst_64, cpu_addr, dc->mem_idx);\n\n gen_store_fpr_D(dc, rd, cpu_dst_64);\n\n break;\n\n default:\n\n goto illegal_insn;\n\n }\n\n } else if (xop < 8 || (xop >= 0x14 && xop < 0x18) ||\n\n xop == 0xe || xop == 0x1e) {\n\n TCGv cpu_val = gen_load_gpr(dc, rd);\n\n\n\n switch (xop) {\n\n case 0x4: /* st, store word */\n\n gen_address_mask(dc, cpu_addr);\n\n tcg_gen_qemu_st32(cpu_val, cpu_addr, dc->mem_idx);\n\n break;\n\n case 0x5: /* stb, store byte */\n\n gen_address_mask(dc, cpu_addr);\n\n tcg_gen_qemu_st8(cpu_val, cpu_addr, dc->mem_idx);\n\n break;\n\n case 0x6: /* sth, store halfword */\n\n gen_address_mask(dc, cpu_addr);\n\n tcg_gen_qemu_st16(cpu_val, cpu_addr, dc->mem_idx);\n\n break;\n\n case 0x7: /* std, store double word */\n\n if (rd & 1)\n\n goto illegal_insn;\n\n else {\n\n TCGv_i32 r_const;\n\n TCGv lo;\n\n\n\n save_state(dc);\n\n gen_address_mask(dc, cpu_addr);\n\n r_const = tcg_const_i32(7);\n\n /* XXX remove alignment check */\n\n gen_helper_check_align(cpu_env, cpu_addr, r_const);\n\n tcg_temp_free_i32(r_const);\n\n lo = gen_load_gpr(dc, rd + 1);\n\n tcg_gen_concat_tl_i64(cpu_tmp64, lo, cpu_val);\n\n tcg_gen_qemu_st64(cpu_tmp64, cpu_addr, dc->mem_idx);\n\n }\n\n break;\n\n#if !defined(CONFIG_USER_ONLY) || defined(TARGET_SPARC64)\n\n case 0x14: /* sta, V9 stwa, store word alternate */\n\n#ifndef TARGET_SPARC64\n\n if (IS_IMM)\n\n goto illegal_insn;\n\n if (!supervisor(dc))\n\n goto priv_insn;\n\n#endif\n\n save_state(dc);\n\n gen_st_asi(cpu_val, cpu_addr, insn, 4);\n\n dc->npc = DYNAMIC_PC;\n\n break;\n\n case 0x15: /* stba, store byte alternate */\n\n#ifndef TARGET_SPARC64\n\n if (IS_IMM)\n\n goto illegal_insn;\n\n if (!supervisor(dc))\n\n goto priv_insn;\n\n#endif\n\n save_state(dc);\n\n gen_st_asi(cpu_val, cpu_addr, insn, 1);\n\n dc->npc = DYNAMIC_PC;\n\n break;\n\n case 0x16: /* stha, store halfword alternate */\n\n#ifndef TARGET_SPARC64\n\n if (IS_IMM)\n\n goto illegal_insn;\n\n if (!supervisor(dc))\n\n goto priv_insn;\n\n#endif\n\n save_state(dc);\n\n gen_st_asi(cpu_val, cpu_addr, insn, 2);\n\n dc->npc = DYNAMIC_PC;\n\n break;\n\n case 0x17: /* stda, store double word alternate */\n\n#ifndef TARGET_SPARC64\n\n if (IS_IMM)\n\n goto illegal_insn;\n\n if (!supervisor(dc))\n\n goto priv_insn;\n\n#endif\n\n if (rd & 1)\n\n goto illegal_insn;\n\n else {\n\n save_state(dc);\n\n gen_stda_asi(dc, cpu_val, cpu_addr, insn, rd);\n\n }\n\n break;\n\n#endif\n\n#ifdef TARGET_SPARC64\n\n case 0x0e: /* V9 stx */\n\n gen_address_mask(dc, cpu_addr);\n\n tcg_gen_qemu_st64(cpu_val, cpu_addr, dc->mem_idx);\n\n break;\n\n case 0x1e: /* V9 stxa */\n\n save_state(dc);\n\n gen_st_asi(cpu_val, cpu_addr, insn, 8);\n\n dc->npc = DYNAMIC_PC;\n\n break;\n\n#endif\n\n default:\n\n goto illegal_insn;\n\n }\n\n } else if (xop > 0x23 && xop < 0x28) {\n\n if (gen_trap_ifnofpu(dc)) {\n\n goto jmp_insn;\n\n }\n\n save_state(dc);\n\n switch (xop) {\n\n case 0x24: /* stf, store fpreg */\n\n gen_address_mask(dc, cpu_addr);\n\n cpu_src1_32 = gen_load_fpr_F(dc, rd);\n\n tcg_gen_ext_i32_tl(cpu_tmp0, cpu_src1_32);\n\n tcg_gen_qemu_st32(cpu_tmp0, cpu_addr, dc->mem_idx);\n\n break;\n\n case 0x25: /* stfsr, V9 stxfsr */\n\n#ifdef TARGET_SPARC64\n\n gen_address_mask(dc, cpu_addr);\n\n tcg_gen_ld_i64(cpu_tmp64, cpu_env, offsetof(CPUSPARCState, fsr));\n\n if (rd == 1)\n\n tcg_gen_qemu_st64(cpu_tmp64, cpu_addr, dc->mem_idx);\n\n else\n\n tcg_gen_qemu_st32(cpu_tmp64, cpu_addr, dc->mem_idx);\n\n#else\n\n tcg_gen_ld_i32(cpu_tmp32, cpu_env, offsetof(CPUSPARCState, fsr));\n\n tcg_gen_qemu_st32(cpu_tmp32, cpu_addr, dc->mem_idx);\n\n#endif\n\n break;\n\n case 0x26:\n\n#ifdef TARGET_SPARC64\n\n /* V9 stqf, store quad fpreg */\n\n {\n\n TCGv_i32 r_const;\n\n\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n gen_op_load_fpr_QT0(QFPREG(rd));\n\n r_const = tcg_const_i32(dc->mem_idx);\n\n gen_address_mask(dc, cpu_addr);\n\n gen_helper_stqf(cpu_env, cpu_addr, r_const);\n\n tcg_temp_free_i32(r_const);\n\n }\n\n break;\n\n#else /* !TARGET_SPARC64 */\n\n /* stdfq, store floating point queue */\n\n#if defined(CONFIG_USER_ONLY)\n\n goto illegal_insn;\n\n#else\n\n if (!supervisor(dc))\n\n goto priv_insn;\n\n if (gen_trap_ifnofpu(dc)) {\n\n goto jmp_insn;\n\n }\n\n goto nfq_insn;\n\n#endif\n\n#endif\n\n case 0x27: /* stdf, store double fpreg */\n\n gen_address_mask(dc, cpu_addr);\n\n cpu_src1_64 = gen_load_fpr_D(dc, rd);\n\n tcg_gen_qemu_st64(cpu_src1_64, cpu_addr, dc->mem_idx);\n\n break;\n\n default:\n\n goto illegal_insn;\n\n }\n\n } else if (xop > 0x33 && xop < 0x3f) {\n\n save_state(dc);\n\n switch (xop) {\n\n#ifdef TARGET_SPARC64\n\n case 0x34: /* V9 stfa */\n\n if (gen_trap_ifnofpu(dc)) {\n\n goto jmp_insn;\n\n }\n\n gen_stf_asi(cpu_addr, insn, 4, rd);\n\n break;\n\n case 0x36: /* V9 stqfa */\n\n {\n\n TCGv_i32 r_const;\n\n\n\n CHECK_FPU_FEATURE(dc, FLOAT128);\n\n if (gen_trap_ifnofpu(dc)) {\n\n goto jmp_insn;\n\n }\n\n r_const = tcg_const_i32(7);\n\n gen_helper_check_align(cpu_env, cpu_addr, r_const);\n\n tcg_temp_free_i32(r_const);\n\n gen_stf_asi(cpu_addr, insn, 16, QFPREG(rd));\n\n }\n\n break;\n\n case 0x37: /* V9 stdfa */\n\n if (gen_trap_ifnofpu(dc)) {\n\n goto jmp_insn;\n\n }\n\n gen_stf_asi(cpu_addr, insn, 8, DFPREG(rd));\n\n break;\n\n case 0x3c: /* V9 casa */\n\n gen_cas_asi(dc, cpu_addr, cpu_src2, insn, rd);\n\n break;\n\n case 0x3e: /* V9 casxa */\n\n gen_casx_asi(dc, cpu_addr, cpu_src2, insn, rd);\n\n break;\n\n#else\n\n case 0x34: /* stc */\n\n case 0x35: /* stcsr */\n\n case 0x36: /* stdcq */\n\n case 0x37: /* stdc */\n\n goto ncp_insn;\n\n#endif\n\n default:\n\n goto illegal_insn;\n\n }\n\n } else\n\n goto illegal_insn;\n\n }\n\n break;\n\n }\n\n /* default case for non jump instructions */\n\n if (dc->npc == DYNAMIC_PC) {\n\n dc->pc = DYNAMIC_PC;\n\n gen_op_next_insn();\n\n } else if (dc->npc == JUMP_PC) {\n\n /* we can do a static jump */\n\n gen_branch2(dc, dc->jump_pc[0], dc->jump_pc[1], cpu_cond);\n\n dc->is_br = 1;\n\n } else {\n\n dc->pc = dc->npc;\n\n dc->npc = dc->npc + 4;\n\n }\n\n jmp_insn:\n\n goto egress;\n\n illegal_insn:\n\n {\n\n TCGv_i32 r_const;\n\n\n\n save_state(dc);\n\n r_const = tcg_const_i32(TT_ILL_INSN);\n\n gen_helper_raise_exception(cpu_env, r_const);\n\n tcg_temp_free_i32(r_const);\n\n dc->is_br = 1;\n\n }\n\n goto egress;\n\n unimp_flush:\n\n {\n\n TCGv_i32 r_const;\n\n\n\n save_state(dc);\n\n r_const = tcg_const_i32(TT_UNIMP_FLUSH);\n\n gen_helper_raise_exception(cpu_env, r_const);\n\n tcg_temp_free_i32(r_const);\n\n dc->is_br = 1;\n\n }\n\n goto egress;\n\n#if !defined(CONFIG_USER_ONLY)\n\n priv_insn:\n\n {\n\n TCGv_i32 r_const;\n\n\n\n save_state(dc);\n\n r_const = tcg_const_i32(TT_PRIV_INSN);\n\n gen_helper_raise_exception(cpu_env, r_const);\n\n tcg_temp_free_i32(r_const);\n\n dc->is_br = 1;\n\n }\n\n goto egress;\n\n#endif\n\n nfpu_insn:\n\n save_state(dc);\n\n gen_op_fpexception_im(FSR_FTT_UNIMPFPOP);\n\n dc->is_br = 1;\n\n goto egress;\n\n#if !defined(CONFIG_USER_ONLY) && !defined(TARGET_SPARC64)\n\n nfq_insn:\n\n save_state(dc);\n\n gen_op_fpexception_im(FSR_FTT_SEQ_ERROR);\n\n dc->is_br = 1;\n\n goto egress;\n\n#endif\n\n#ifndef TARGET_SPARC64\n\n ncp_insn:\n\n {\n\n TCGv r_const;\n\n\n\n save_state(dc);\n\n r_const = tcg_const_i32(TT_NCP_INSN);\n\n gen_helper_raise_exception(cpu_env, r_const);\n\n tcg_temp_free(r_const);\n\n dc->is_br = 1;\n\n }\n\n goto egress;\n\n#endif\n\n egress:\n\n tcg_temp_free(cpu_tmp1);\n\n tcg_temp_free(cpu_tmp2);\n\n if (dc->n_t32 != 0) {\n\n int i;\n\n for (i = dc->n_t32 - 1; i >= 0; --i) {\n\n tcg_temp_free_i32(dc->t32[i]);\n\n }\n\n dc->n_t32 = 0;\n\n }\n\n if (dc->n_ttl != 0) {\n\n int i;\n\n for (i = dc->n_ttl - 1; i >= 0; --i) {\n\n tcg_temp_free(dc->ttl[i]);\n\n }\n\n dc->n_ttl = 0;\n\n }\n\n}\n", + "output": "1", + "index": 13133 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "build_ssdt(GArray *table_data, GArray *linker,\n\n AcpiCpuInfo *cpu, AcpiPmInfo *pm, AcpiMiscInfo *misc,\n\n PcPciInfo *pci, PcGuestInfo *guest_info)\n\n{\n\n MachineState *machine = MACHINE(qdev_get_machine());\n\n uint32_t nr_mem = machine->ram_slots;\n\n unsigned acpi_cpus = guest_info->apic_id_limit;\n\n Aml *ssdt, *sb_scope, *scope, *pkg, *dev, *method, *crs, *field, *ifctx;\n\n PCIBus *bus = NULL;\n\n GPtrArray *io_ranges = g_ptr_array_new_with_free_func(crs_range_free);\n\n GPtrArray *mem_ranges = g_ptr_array_new_with_free_func(crs_range_free);\n\n CrsRangeEntry *entry;\n\n int root_bus_limit = 0xFF;\n\n int i;\n\n\n\n ssdt = init_aml_allocator();\n\n /* The current AML generator can cover the APIC ID range [0..255],\n\n * inclusive, for VCPU hotplug. */\n\n QEMU_BUILD_BUG_ON(ACPI_CPU_HOTPLUG_ID_LIMIT > 256);\n\n g_assert(acpi_cpus <= ACPI_CPU_HOTPLUG_ID_LIMIT);\n\n\n\n /* Reserve space for header */\n\n acpi_data_push(ssdt->buf, sizeof(AcpiTableHeader));\n\n\n\n /* Extra PCI root buses are implemented only for i440fx */\n\n bus = find_i440fx();\n\n if (bus) {\n\n QLIST_FOREACH(bus, &bus->child, sibling) {\n\n uint8_t bus_num = pci_bus_num(bus);\n\n uint8_t numa_node = pci_bus_numa_node(bus);\n\n\n\n /* look only for expander root buses */\n\n if (!pci_bus_is_root(bus)) {\n\n continue;\n\n }\n\n\n\n if (bus_num < root_bus_limit) {\n\n root_bus_limit = bus_num - 1;\n\n }\n\n\n\n scope = aml_scope(\"\\\\_SB\");\n\n dev = aml_device(\"PC%.02X\", bus_num);\n\n aml_append(dev, aml_name_decl(\"_UID\", aml_int(bus_num)));\n\n aml_append(dev, aml_name_decl(\"_HID\", aml_eisaid(\"PNP0A03\")));\n\n aml_append(dev, aml_name_decl(\"_BBN\", aml_int(bus_num)));\n\n\n\n if (numa_node != NUMA_NODE_UNASSIGNED) {\n\n aml_append(dev, aml_name_decl(\"_PXM\", aml_int(numa_node)));\n\n }\n\n\n\n aml_append(dev, build_prt());\n\n crs = build_crs(PCI_HOST_BRIDGE(BUS(bus)->parent),\n\n io_ranges, mem_ranges);\n\n aml_append(dev, aml_name_decl(\"_CRS\", crs));\n\n aml_append(scope, dev);\n\n aml_append(ssdt, scope);\n\n }\n\n }\n\n\n\n scope = aml_scope(\"\\\\_SB.PCI0\");\n\n /* build PCI0._CRS */\n\n crs = aml_resource_template();\n\n aml_append(crs,\n\n aml_word_bus_number(AML_MIN_FIXED, AML_MAX_FIXED, AML_POS_DECODE,\n\n 0x0000, 0x0, root_bus_limit,\n\n 0x0000, root_bus_limit + 1));\n\n aml_append(crs, aml_io(AML_DECODE16, 0x0CF8, 0x0CF8, 0x01, 0x08));\n\n\n\n aml_append(crs,\n\n aml_word_io(AML_MIN_FIXED, AML_MAX_FIXED,\n\n AML_POS_DECODE, AML_ENTIRE_RANGE,\n\n 0x0000, 0x0000, 0x0CF7, 0x0000, 0x0CF8));\n\n\n\n crs_replace_with_free_ranges(io_ranges, 0x0D00, 0xFFFF);\n\n for (i = 0; i < io_ranges->len; i++) {\n\n entry = g_ptr_array_index(io_ranges, i);\n\n aml_append(crs,\n\n aml_word_io(AML_MIN_FIXED, AML_MAX_FIXED,\n\n AML_POS_DECODE, AML_ENTIRE_RANGE,\n\n 0x0000, entry->base, entry->limit,\n\n 0x0000, entry->limit - entry->base + 1));\n\n }\n\n\n\n aml_append(crs,\n\n aml_dword_memory(AML_POS_DECODE, AML_MIN_FIXED, AML_MAX_FIXED,\n\n AML_CACHEABLE, AML_READ_WRITE,\n\n 0, 0x000A0000, 0x000BFFFF, 0, 0x00020000));\n\n\n\n crs_replace_with_free_ranges(mem_ranges, pci->w32.begin, pci->w32.end - 1);\n\n for (i = 0; i < mem_ranges->len; i++) {\n\n entry = g_ptr_array_index(mem_ranges, i);\n\n aml_append(crs,\n\n aml_dword_memory(AML_POS_DECODE, AML_MIN_FIXED, AML_MAX_FIXED,\n\n AML_NON_CACHEABLE, AML_READ_WRITE,\n\n 0, entry->base, entry->limit,\n\n 0, entry->limit - entry->base + 1));\n\n }\n\n\n\n if (pci->w64.begin) {\n\n aml_append(crs,\n\n aml_qword_memory(AML_POS_DECODE, AML_MIN_FIXED, AML_MAX_FIXED,\n\n AML_CACHEABLE, AML_READ_WRITE,\n\n 0, pci->w64.begin, pci->w64.end - 1, 0,\n\n pci->w64.end - pci->w64.begin));\n\n }\n\n aml_append(scope, aml_name_decl(\"_CRS\", crs));\n\n\n\n /* reserve GPE0 block resources */\n\n dev = aml_device(\"GPE0\");\n\n aml_append(dev, aml_name_decl(\"_HID\", aml_string(\"PNP0A06\")));\n\n aml_append(dev, aml_name_decl(\"_UID\", aml_string(\"GPE0 resources\")));\n\n /* device present, functioning, decoding, not shown in UI */\n\n aml_append(dev, aml_name_decl(\"_STA\", aml_int(0xB)));\n\n crs = aml_resource_template();\n\n aml_append(crs,\n\n aml_io(AML_DECODE16, pm->gpe0_blk, pm->gpe0_blk, 1, pm->gpe0_blk_len)\n\n );\n\n aml_append(dev, aml_name_decl(\"_CRS\", crs));\n\n aml_append(scope, dev);\n\n\n\n g_ptr_array_free(io_ranges, true);\n\n g_ptr_array_free(mem_ranges, true);\n\n\n\n /* reserve PCIHP resources */\n\n if (pm->pcihp_io_len) {\n\n dev = aml_device(\"PHPR\");\n\n aml_append(dev, aml_name_decl(\"_HID\", aml_string(\"PNP0A06\")));\n\n aml_append(dev,\n\n aml_name_decl(\"_UID\", aml_string(\"PCI Hotplug resources\")));\n\n /* device present, functioning, decoding, not shown in UI */\n\n aml_append(dev, aml_name_decl(\"_STA\", aml_int(0xB)));\n\n crs = aml_resource_template();\n\n aml_append(crs,\n\n aml_io(AML_DECODE16, pm->pcihp_io_base, pm->pcihp_io_base, 1,\n\n pm->pcihp_io_len)\n\n );\n\n aml_append(dev, aml_name_decl(\"_CRS\", crs));\n\n aml_append(scope, dev);\n\n }\n\n aml_append(ssdt, scope);\n\n\n\n /* create S3_ / S4_ / S5_ packages if necessary */\n\n scope = aml_scope(\"\\\\\");\n\n if (!pm->s3_disabled) {\n\n pkg = aml_package(4);\n\n aml_append(pkg, aml_int(1)); /* PM1a_CNT.SLP_TYP */\n\n aml_append(pkg, aml_int(1)); /* PM1b_CNT.SLP_TYP, FIXME: not impl. */\n\n aml_append(pkg, aml_int(0)); /* reserved */\n\n aml_append(pkg, aml_int(0)); /* reserved */\n\n aml_append(scope, aml_name_decl(\"_S3\", pkg));\n\n }\n\n\n\n if (!pm->s4_disabled) {\n\n pkg = aml_package(4);\n\n aml_append(pkg, aml_int(pm->s4_val)); /* PM1a_CNT.SLP_TYP */\n\n /* PM1b_CNT.SLP_TYP, FIXME: not impl. */\n\n aml_append(pkg, aml_int(pm->s4_val));\n\n aml_append(pkg, aml_int(0)); /* reserved */\n\n aml_append(pkg, aml_int(0)); /* reserved */\n\n aml_append(scope, aml_name_decl(\"_S4\", pkg));\n\n }\n\n\n\n pkg = aml_package(4);\n\n aml_append(pkg, aml_int(0)); /* PM1a_CNT.SLP_TYP */\n\n aml_append(pkg, aml_int(0)); /* PM1b_CNT.SLP_TYP not impl. */\n\n aml_append(pkg, aml_int(0)); /* reserved */\n\n aml_append(pkg, aml_int(0)); /* reserved */\n\n aml_append(scope, aml_name_decl(\"_S5\", pkg));\n\n aml_append(ssdt, scope);\n\n\n\n if (misc->applesmc_io_base) {\n\n scope = aml_scope(\"\\\\_SB.PCI0.ISA\");\n\n dev = aml_device(\"SMC\");\n\n\n\n aml_append(dev, aml_name_decl(\"_HID\", aml_eisaid(\"APP0001\")));\n\n /* device present, functioning, decoding, not shown in UI */\n\n aml_append(dev, aml_name_decl(\"_STA\", aml_int(0xB)));\n\n\n\n crs = aml_resource_template();\n\n aml_append(crs,\n\n aml_io(AML_DECODE16, misc->applesmc_io_base, misc->applesmc_io_base,\n\n 0x01, APPLESMC_MAX_DATA_LENGTH)\n\n );\n\n aml_append(crs, aml_irq_no_flags(6));\n\n aml_append(dev, aml_name_decl(\"_CRS\", crs));\n\n\n\n aml_append(scope, dev);\n\n aml_append(ssdt, scope);\n\n }\n\n\n\n if (misc->pvpanic_port) {\n\n scope = aml_scope(\"\\\\_SB.PCI0.ISA\");\n\n\n\n dev = aml_device(\"PEVT\");\n\n aml_append(dev, aml_name_decl(\"_HID\", aml_string(\"QEMU0001\")));\n\n\n\n crs = aml_resource_template();\n\n aml_append(crs,\n\n aml_io(AML_DECODE16, misc->pvpanic_port, misc->pvpanic_port, 1, 1)\n\n );\n\n aml_append(dev, aml_name_decl(\"_CRS\", crs));\n\n\n\n aml_append(dev, aml_operation_region(\"PEOR\", AML_SYSTEM_IO,\n\n misc->pvpanic_port, 1));\n\n field = aml_field(\"PEOR\", AML_BYTE_ACC, AML_PRESERVE);\n\n aml_append(field, aml_named_field(\"PEPT\", 8));\n\n aml_append(dev, field);\n\n\n\n /* device present, functioning, decoding, not shown in UI */\n\n aml_append(dev, aml_name_decl(\"_STA\", aml_int(0xB)));\n\n\n\n method = aml_method(\"RDPT\", 0);\n\n aml_append(method, aml_store(aml_name(\"PEPT\"), aml_local(0)));\n\n aml_append(method, aml_return(aml_local(0)));\n\n aml_append(dev, method);\n\n\n\n method = aml_method(\"WRPT\", 1);\n\n aml_append(method, aml_store(aml_arg(0), aml_name(\"PEPT\")));\n\n aml_append(dev, method);\n\n\n\n aml_append(scope, dev);\n\n aml_append(ssdt, scope);\n\n }\n\n\n\n sb_scope = aml_scope(\"\\\\_SB\");\n\n {\n\n /* create PCI0.PRES device and its _CRS to reserve CPU hotplug MMIO */\n\n dev = aml_device(\"PCI0.\" stringify(CPU_HOTPLUG_RESOURCE_DEVICE));\n\n aml_append(dev, aml_name_decl(\"_HID\", aml_eisaid(\"PNP0A06\")));\n\n aml_append(dev,\n\n aml_name_decl(\"_UID\", aml_string(\"CPU Hotplug resources\"))\n\n );\n\n /* device present, functioning, decoding, not shown in UI */\n\n aml_append(dev, aml_name_decl(\"_STA\", aml_int(0xB)));\n\n crs = aml_resource_template();\n\n aml_append(crs,\n\n aml_io(AML_DECODE16, pm->cpu_hp_io_base, pm->cpu_hp_io_base, 1,\n\n pm->cpu_hp_io_len)\n\n );\n\n aml_append(dev, aml_name_decl(\"_CRS\", crs));\n\n aml_append(sb_scope, dev);\n\n /* declare CPU hotplug MMIO region and PRS field to access it */\n\n aml_append(sb_scope, aml_operation_region(\n\n \"PRST\", AML_SYSTEM_IO, pm->cpu_hp_io_base, pm->cpu_hp_io_len));\n\n field = aml_field(\"PRST\", AML_BYTE_ACC, AML_PRESERVE);\n\n aml_append(field, aml_named_field(\"PRS\", 256));\n\n aml_append(sb_scope, field);\n\n\n\n /* build Processor object for each processor */\n\n for (i = 0; i < acpi_cpus; i++) {\n\n dev = aml_processor(i, 0, 0, \"CP%.02X\", i);\n\n\n\n method = aml_method(\"_MAT\", 0);\n\n aml_append(method, aml_return(aml_call1(\"CPMA\", aml_int(i))));\n\n aml_append(dev, method);\n\n\n\n method = aml_method(\"_STA\", 0);\n\n aml_append(method, aml_return(aml_call1(\"CPST\", aml_int(i))));\n\n aml_append(dev, method);\n\n\n\n method = aml_method(\"_EJ0\", 1);\n\n aml_append(method,\n\n aml_return(aml_call2(\"CPEJ\", aml_int(i), aml_arg(0)))\n\n );\n\n aml_append(dev, method);\n\n\n\n aml_append(sb_scope, dev);\n\n }\n\n\n\n /* build this code:\n\n * Method(NTFY, 2) {If (LEqual(Arg0, 0x00)) {Notify(CP00, Arg1)} ...}\n\n */\n\n /* Arg0 = Processor ID = APIC ID */\n\n method = aml_method(\"NTFY\", 2);\n\n for (i = 0; i < acpi_cpus; i++) {\n\n ifctx = aml_if(aml_equal(aml_arg(0), aml_int(i)));\n\n aml_append(ifctx,\n\n aml_notify(aml_name(\"CP%.02X\", i), aml_arg(1))\n\n );\n\n aml_append(method, ifctx);\n\n }\n\n aml_append(sb_scope, method);\n\n\n\n /* build \"Name(CPON, Package() { One, One, ..., Zero, Zero, ... })\"\n\n *\n\n * Note: The ability to create variable-sized packages was first\n\n * introduced in ACPI 2.0. ACPI 1.0 only allowed fixed-size packages\n\n * ith up to 255 elements. Windows guests up to win2k8 fail when\n\n * VarPackageOp is used.\n\n */\n\n pkg = acpi_cpus <= 255 ? aml_package(acpi_cpus) :\n\n aml_varpackage(acpi_cpus);\n\n\n\n for (i = 0; i < acpi_cpus; i++) {\n\n uint8_t b = test_bit(i, cpu->found_cpus) ? 0x01 : 0x00;\n\n aml_append(pkg, aml_int(b));\n\n }\n\n aml_append(sb_scope, aml_name_decl(\"CPON\", pkg));\n\n\n\n /* build memory devices */\n\n assert(nr_mem <= ACPI_MAX_RAM_SLOTS);\n\n scope = aml_scope(\"\\\\_SB.PCI0.\" stringify(MEMORY_HOTPLUG_DEVICE));\n\n aml_append(scope,\n\n aml_name_decl(stringify(MEMORY_SLOTS_NUMBER), aml_int(nr_mem))\n\n );\n\n\n\n crs = aml_resource_template();\n\n aml_append(crs,\n\n aml_io(AML_DECODE16, pm->mem_hp_io_base, pm->mem_hp_io_base, 0,\n\n pm->mem_hp_io_len)\n\n );\n\n aml_append(scope, aml_name_decl(\"_CRS\", crs));\n\n\n\n aml_append(scope, aml_operation_region(\n\n stringify(MEMORY_HOTPLUG_IO_REGION), AML_SYSTEM_IO,\n\n pm->mem_hp_io_base, pm->mem_hp_io_len)\n\n );\n\n\n\n field = aml_field(stringify(MEMORY_HOTPLUG_IO_REGION), AML_DWORD_ACC,\n\n AML_PRESERVE);\n\n aml_append(field, /* read only */\n\n aml_named_field(stringify(MEMORY_SLOT_ADDR_LOW), 32));\n\n aml_append(field, /* read only */\n\n aml_named_field(stringify(MEMORY_SLOT_ADDR_HIGH), 32));\n\n aml_append(field, /* read only */\n\n aml_named_field(stringify(MEMORY_SLOT_SIZE_LOW), 32));\n\n aml_append(field, /* read only */\n\n aml_named_field(stringify(MEMORY_SLOT_SIZE_HIGH), 32));\n\n aml_append(field, /* read only */\n\n aml_named_field(stringify(MEMORY_SLOT_PROXIMITY), 32));\n\n aml_append(scope, field);\n\n\n\n field = aml_field(stringify(MEMORY_HOTPLUG_IO_REGION), AML_BYTE_ACC,\n\n AML_WRITE_AS_ZEROS);\n\n aml_append(field, aml_reserved_field(160 /* bits, Offset(20) */));\n\n aml_append(field, /* 1 if enabled, read only */\n\n aml_named_field(stringify(MEMORY_SLOT_ENABLED), 1));\n\n aml_append(field,\n\n /*(read) 1 if has a insert event. (write) 1 to clear event */\n\n aml_named_field(stringify(MEMORY_SLOT_INSERT_EVENT), 1));\n\n aml_append(field,\n\n /* (read) 1 if has a remove event. (write) 1 to clear event */\n\n aml_named_field(stringify(MEMORY_SLOT_REMOVE_EVENT), 1));\n\n aml_append(field,\n\n /* initiates device eject, write only */\n\n aml_named_field(stringify(MEMORY_SLOT_EJECT), 1));\n\n aml_append(scope, field);\n\n\n\n field = aml_field(stringify(MEMORY_HOTPLUG_IO_REGION), AML_DWORD_ACC,\n\n AML_PRESERVE);\n\n aml_append(field, /* DIMM selector, write only */\n\n aml_named_field(stringify(MEMORY_SLOT_SLECTOR), 32));\n\n aml_append(field, /* _OST event code, write only */\n\n aml_named_field(stringify(MEMORY_SLOT_OST_EVENT), 32));\n\n aml_append(field, /* _OST status code, write only */\n\n aml_named_field(stringify(MEMORY_SLOT_OST_STATUS), 32));\n\n aml_append(scope, field);\n\n\n\n aml_append(sb_scope, scope);\n\n\n\n for (i = 0; i < nr_mem; i++) {\n\n #define BASEPATH \"\\\\_SB.PCI0.\" stringify(MEMORY_HOTPLUG_DEVICE) \".\"\n\n const char *s;\n\n\n\n dev = aml_device(\"MP%02X\", i);\n\n aml_append(dev, aml_name_decl(\"_UID\", aml_string(\"0x%02X\", i)));\n\n aml_append(dev, aml_name_decl(\"_HID\", aml_eisaid(\"PNP0C80\")));\n\n\n\n method = aml_method(\"_CRS\", 0);\n\n s = BASEPATH stringify(MEMORY_SLOT_CRS_METHOD);\n\n aml_append(method, aml_return(aml_call1(s, aml_name(\"_UID\"))));\n\n aml_append(dev, method);\n\n\n\n method = aml_method(\"_STA\", 0);\n\n s = BASEPATH stringify(MEMORY_SLOT_STATUS_METHOD);\n\n aml_append(method, aml_return(aml_call1(s, aml_name(\"_UID\"))));\n\n aml_append(dev, method);\n\n\n\n method = aml_method(\"_PXM\", 0);\n\n s = BASEPATH stringify(MEMORY_SLOT_PROXIMITY_METHOD);\n\n aml_append(method, aml_return(aml_call1(s, aml_name(\"_UID\"))));\n\n aml_append(dev, method);\n\n\n\n method = aml_method(\"_OST\", 3);\n\n s = BASEPATH stringify(MEMORY_SLOT_OST_METHOD);\n\n aml_append(method, aml_return(aml_call4(\n\n s, aml_name(\"_UID\"), aml_arg(0), aml_arg(1), aml_arg(2)\n\n )));\n\n aml_append(dev, method);\n\n\n\n method = aml_method(\"_EJ0\", 1);\n\n s = BASEPATH stringify(MEMORY_SLOT_EJECT_METHOD);\n\n aml_append(method, aml_return(aml_call2(\n\n s, aml_name(\"_UID\"), aml_arg(0))));\n\n aml_append(dev, method);\n\n\n\n aml_append(sb_scope, dev);\n\n }\n\n\n\n /* build Method(MEMORY_SLOT_NOTIFY_METHOD, 2) {\n\n * If (LEqual(Arg0, 0x00)) {Notify(MP00, Arg1)} ... }\n\n */\n\n method = aml_method(stringify(MEMORY_SLOT_NOTIFY_METHOD), 2);\n\n for (i = 0; i < nr_mem; i++) {\n\n ifctx = aml_if(aml_equal(aml_arg(0), aml_int(i)));\n\n aml_append(ifctx,\n\n aml_notify(aml_name(\"MP%.02X\", i), aml_arg(1))\n\n );\n\n aml_append(method, ifctx);\n\n }\n\n aml_append(sb_scope, method);\n\n\n\n {\n\n Object *pci_host;\n\n PCIBus *bus = NULL;\n\n\n\n pci_host = acpi_get_i386_pci_host();\n\n if (pci_host) {\n\n bus = PCI_HOST_BRIDGE(pci_host)->bus;\n\n }\n\n\n\n if (bus) {\n\n Aml *scope = aml_scope(\"PCI0\");\n\n /* Scan all PCI buses. Generate tables to support hotplug. */\n\n build_append_pci_bus_devices(scope, bus, pm->pcihp_bridge_en);\n\n\n\n if (misc->tpm_version != TPM_VERSION_UNSPEC) {\n\n dev = aml_device(\"ISA.TPM\");\n\n aml_append(dev, aml_name_decl(\"_HID\", aml_eisaid(\"PNP0C31\")));\n\n aml_append(dev, aml_name_decl(\"_STA\", aml_int(0xF)));\n\n crs = aml_resource_template();\n\n aml_append(crs, aml_memory32_fixed(TPM_TIS_ADDR_BASE,\n\n TPM_TIS_ADDR_SIZE, AML_READ_WRITE));\n\n aml_append(crs, aml_irq_no_flags(TPM_TIS_IRQ));\n\n aml_append(dev, aml_name_decl(\"_CRS\", crs));\n\n aml_append(scope, dev);\n\n }\n\n\n\n aml_append(sb_scope, scope);\n\n }\n\n }\n\n aml_append(ssdt, sb_scope);\n\n }\n\n\n\n /* copy AML table into ACPI tables blob and patch header there */\n\n g_array_append_vals(table_data, ssdt->buf->data, ssdt->buf->len);\n\n build_header(linker, table_data,\n\n (void *)(table_data->data + table_data->len - ssdt->buf->len),\n\n \"SSDT\", ssdt->buf->len, 1);\n\n free_aml_allocator();\n\n}\n", + "output": "1", + "index": 1037 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "void slirp_select_poll(fd_set *readfds, fd_set *writefds, fd_set *xfds)\n\n{\n\n struct socket *so, *so_next;\n\n int ret;\n\n\n\n global_readfds = readfds;\n\n global_writefds = writefds;\n\n global_xfds = xfds;\n\n\n\n\t/* Update time */\n\n\tupdtime();\n\n\n\n\t/*\n\n\t * See if anything has timed out\n\n\t */\n\n\tif (link_up) {\n\n\t\tif (time_fasttimo && ((curtime - time_fasttimo) >= 2)) {\n\n\t\t\ttcp_fasttimo();\n\n\t\t\ttime_fasttimo = 0;\n\n\t\t}\n\n\t\tif (do_slowtimo && ((curtime - last_slowtimo) >= 499)) {\n\n\t\t\tip_slowtimo();\n\n\t\t\ttcp_slowtimo();\n\n\t\t\tlast_slowtimo = curtime;\n\n\t\t}\n\n\t}\n\n\n\n\t/*\n\n\t * Check sockets\n\n\t */\n\n\tif (link_up) {\n\n\t\t/*\n\n\t\t * Check TCP sockets\n\n\t\t */\n\n\t\tfor (so = tcb.so_next; so != &tcb; so = so_next) {\n\n\t\t\tso_next = so->so_next;\n\n\n\n\t\t\t/*\n\n\t\t\t * FD_ISSET is meaningless on these sockets\n\n\t\t\t * (and they can crash the program)\n\n\t\t\t */\n\n\t\t\tif (so->so_state & SS_NOFDREF || so->s == -1)\n\n\t\t\t continue;\n\n\n\n\t\t\t/*\n\n\t\t\t * Check for URG data\n\n\t\t\t * This will soread as well, so no need to\n\n\t\t\t * test for readfds below if this succeeds\n\n\t\t\t */\n\n\t\t\tif (FD_ISSET(so->s, xfds))\n\n\t\t\t sorecvoob(so);\n\n\t\t\t/*\n\n\t\t\t * Check sockets for reading\n\n\t\t\t */\n\n\t\t\telse if (FD_ISSET(so->s, readfds)) {\n\n\t\t\t\t/*\n\n\t\t\t\t * Check for incoming connections\n\n\t\t\t\t */\n\n\t\t\t\tif (so->so_state & SS_FACCEPTCONN) {\n\n\t\t\t\t\ttcp_connect(so);\n\n\t\t\t\t\tcontinue;\n\n\t\t\t\t} /* else */\n\n\t\t\t\tret = soread(so);\n\n\n\n\t\t\t\t/* Output it if we read something */\n\n\t\t\t\tif (ret > 0)\n\n\t\t\t\t tcp_output(sototcpcb(so));\n\n\t\t\t}\n\n\n\n\t\t\t/*\n\n\t\t\t * Check sockets for writing\n\n\t\t\t */\n\n\t\t\tif (FD_ISSET(so->s, writefds)) {\n\n\t\t\t /*\n\n\t\t\t * Check for non-blocking, still-connecting sockets\n\n\t\t\t */\n\n\t\t\t if (so->so_state & SS_ISFCONNECTING) {\n\n\t\t\t /* Connected */\n\n\t\t\t so->so_state &= ~SS_ISFCONNECTING;\n\n\n\n\t\t\t ret = send(so->s, (const void *) &ret, 0, 0);\n\n\t\t\t if (ret < 0) {\n\n\t\t\t /* XXXXX Must fix, zero bytes is a NOP */\n\n\t\t\t if (errno == EAGAIN || errno == EWOULDBLOCK ||\n\n\t\t\t\t errno == EINPROGRESS || errno == ENOTCONN)\n\n\t\t\t\tcontinue;\n\n\n\n\t\t\t /* else failed */\n\n\t\t\t so->so_state &= SS_PERSISTENT_MASK;\n\n\t\t\t so->so_state |= SS_NOFDREF;\n\n\t\t\t }\n\n\t\t\t /* else so->so_state &= ~SS_ISFCONNECTING; */\n\n\n\n\t\t\t /*\n\n\t\t\t * Continue tcp_input\n\n\t\t\t */\n\n\t\t\t tcp_input((struct mbuf *)NULL, sizeof(struct ip), so);\n\n\t\t\t /* continue; */\n\n\t\t\t } else\n\n\t\t\t ret = sowrite(so);\n\n\t\t\t /*\n\n\t\t\t * XXXXX If we wrote something (a lot), there\n\n\t\t\t * could be a need for a window update.\n\n\t\t\t * In the worst case, the remote will send\n\n\t\t\t * a window probe to get things going again\n\n\t\t\t */\n\n\t\t\t}\n\n\n\n\t\t\t/*\n\n\t\t\t * Probe a still-connecting, non-blocking socket\n\n\t\t\t * to check if it's still alive\n\n\t \t \t */\n\n#ifdef PROBE_CONN\n\n\t\t\tif (so->so_state & SS_ISFCONNECTING) {\n\n\t\t\t ret = recv(so->s, (char *)&ret, 0,0);\n\n\n\n\t\t\t if (ret < 0) {\n\n\t\t\t /* XXX */\n\n\t\t\t if (errno == EAGAIN || errno == EWOULDBLOCK ||\n\n\t\t\t\terrno == EINPROGRESS || errno == ENOTCONN)\n\n\t\t\t continue; /* Still connecting, continue */\n\n\n\n\t\t\t /* else failed */\n\n\t\t\t so->so_state &= SS_PERSISTENT_MASK;\n\n\t\t\t so->so_state |= SS_NOFDREF;\n\n\n\n\t\t\t /* tcp_input will take care of it */\n\n\t\t\t } else {\n\n\t\t\t ret = send(so->s, &ret, 0,0);\n\n\t\t\t if (ret < 0) {\n\n\t\t\t /* XXX */\n\n\t\t\t if (errno == EAGAIN || errno == EWOULDBLOCK ||\n\n\t\t\t\t errno == EINPROGRESS || errno == ENOTCONN)\n\n\t\t\t\tcontinue;\n\n\t\t\t /* else failed */\n\n\t\t\t so->so_state &= SS_PERSISTENT_MASK;\n\n\t\t\t so->so_state |= SS_NOFDREF;\n\n\t\t\t } else\n\n\t\t\t so->so_state &= ~SS_ISFCONNECTING;\n\n\n\n\t\t\t }\n\n\t\t\t tcp_input((struct mbuf *)NULL, sizeof(struct ip),so);\n\n\t\t\t} /* SS_ISFCONNECTING */\n\n#endif\n\n\t\t}\n\n\n\n\t\t/*\n\n\t\t * Now UDP sockets.\n\n\t\t * Incoming packets are sent straight away, they're not buffered.\n\n\t\t * Incoming UDP data isn't buffered either.\n\n\t\t */\n\n\t\tfor (so = udb.so_next; so != &udb; so = so_next) {\n\n\t\t\tso_next = so->so_next;\n\n\n\n\t\t\tif (so->s != -1 && FD_ISSET(so->s, readfds)) {\n\n sorecvfrom(so);\n\n }\n\n\t\t}\n\n\t}\n\n\n\n\t/*\n\n\t * See if we can start outputting\n\n\t */\n\n\tif (if_queued && link_up)\n\n\t if_start();\n\n\n\n\t/* clear global file descriptor sets.\n\n\t * these reside on the stack in vl.c\n\n\t * so they're unusable if we're not in\n\n\t * slirp_select_fill or slirp_select_poll.\n\n\t */\n\n\t global_readfds = NULL;\n\n\t global_writefds = NULL;\n\n\t global_xfds = NULL;\n\n}\n", + "output": "0", + "index": 11639 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int doTest(uint8_t *ref[4], int refStride[4], int w, int h,\n\n enum PixelFormat srcFormat, enum PixelFormat dstFormat,\n\n int srcW, int srcH, int dstW, int dstH, int flags)\n\n{\n\n uint8_t *src[4] = {0};\n\n uint8_t *dst[4] = {0};\n\n uint8_t *out[4] = {0};\n\n int srcStride[4], dstStride[4];\n\n int i;\n\n uint64_t ssdY, ssdU=0, ssdV=0, ssdA=0;\n\n struct SwsContext *srcContext = NULL, *dstContext = NULL,\n\n *outContext = NULL;\n\n int res;\n\n\n\n res = 0;\n\n for (i=0; i<4; i++) {\n\n // avoid stride % bpp != 0\n\n if (srcFormat==PIX_FMT_RGB24 || srcFormat==PIX_FMT_BGR24)\n\n srcStride[i]= srcW*3;\n\n else if (srcFormat==PIX_FMT_RGB48BE || srcFormat==PIX_FMT_RGB48LE)\n\n srcStride[i]= srcW*6;\n\n else\n\n srcStride[i]= srcW*4;\n\n\n\n if (dstFormat==PIX_FMT_RGB24 || dstFormat==PIX_FMT_BGR24)\n\n dstStride[i]= dstW*3;\n\n else if (dstFormat==PIX_FMT_RGB48BE || dstFormat==PIX_FMT_RGB48LE)\n\n dstStride[i]= dstW*6;\n\n else\n\n dstStride[i]= dstW*4;\n\n\n\n /* Image buffers passed into libswscale can be allocated any way you\n\n * prefer, as long as they're aligned enough for the architecture, and\n\n * they're freed appropriately (such as using av_free for buffers\n\n * allocated with av_malloc). */\n\n /* An extra 16 bytes is being allocated because some scalers may write\n\n * out of bounds. */\n\n src[i]= av_mallocz(srcStride[i]*srcH+16);\n\n dst[i]= av_mallocz(dstStride[i]*dstH+16);\n\n out[i]= av_mallocz(refStride[i]*h);\n\n if (!src[i] || !dst[i] || !out[i]) {\n\n perror(\"Malloc\");\n\n res = -1;\n\n\n\n goto end;\n\n }\n\n }\n\n\n\n srcContext= sws_getContext(w, h, PIX_FMT_YUVA420P, srcW, srcH, srcFormat, flags, NULL, NULL, NULL);\n\n if (!srcContext) {\n\n fprintf(stderr, \"Failed to get %s ---> %s\\n\",\n\n av_pix_fmt_descriptors[PIX_FMT_YUVA420P].name,\n\n av_pix_fmt_descriptors[srcFormat].name);\n\n res = -1;\n\n\n\n goto end;\n\n }\n\n dstContext= sws_getContext(srcW, srcH, srcFormat, dstW, dstH, dstFormat, flags, NULL, NULL, NULL);\n\n if (!dstContext) {\n\n fprintf(stderr, \"Failed to get %s ---> %s\\n\",\n\n av_pix_fmt_descriptors[srcFormat].name,\n\n av_pix_fmt_descriptors[dstFormat].name);\n\n res = -1;\n\n\n\n goto end;\n\n }\n\n outContext= sws_getContext(dstW, dstH, dstFormat, w, h, PIX_FMT_YUVA420P, flags, NULL, NULL, NULL);\n\n if (!outContext) {\n\n fprintf(stderr, \"Failed to get %s ---> %s\\n\",\n\n av_pix_fmt_descriptors[dstFormat].name,\n\n av_pix_fmt_descriptors[PIX_FMT_YUVA420P].name);\n\n res = -1;\n\n\n\n goto end;\n\n }\n\n// printf(\"test %X %X %X -> %X %X %X\\n\", (int)ref[0], (int)ref[1], (int)ref[2],\n\n// (int)src[0], (int)src[1], (int)src[2]);\n\n\n\n sws_scale(srcContext, ref, refStride, 0, h , src, srcStride);\n\n sws_scale(dstContext, src, srcStride, 0, srcH, dst, dstStride);\n\n sws_scale(outContext, dst, dstStride, 0, dstH, out, refStride);\n\n\n\n ssdY= getSSD(ref[0], out[0], refStride[0], refStride[0], w, h);\n\n if (hasChroma(srcFormat) && hasChroma(dstFormat)) {\n\n //FIXME check that output is really gray\n\n ssdU= getSSD(ref[1], out[1], refStride[1], refStride[1], (w+1)>>1, (h+1)>>1);\n\n ssdV= getSSD(ref[2], out[2], refStride[2], refStride[2], (w+1)>>1, (h+1)>>1);\n\n }\n\n if (isALPHA(srcFormat) && isALPHA(dstFormat))\n\n ssdA= getSSD(ref[3], out[3], refStride[3], refStride[3], w, h);\n\n\n\n ssdY/= w*h;\n\n ssdU/= w*h/4;\n\n ssdV/= w*h/4;\n\n ssdA/= w*h;\n\n\n\n printf(\" %s %dx%d -> %s %4dx%4d flags=%2d SSD=%5\"PRId64\",%5\"PRId64\",%5\"PRId64\",%5\"PRId64\"\\n\",\n\n av_pix_fmt_descriptors[srcFormat].name, srcW, srcH,\n\n av_pix_fmt_descriptors[dstFormat].name, dstW, dstH,\n\n flags, ssdY, ssdU, ssdV, ssdA);\n\n fflush(stdout);\n\n\n\nend:\n\n\n\n sws_freeContext(srcContext);\n\n sws_freeContext(dstContext);\n\n sws_freeContext(outContext);\n\n\n\n for (i=0; i<4; i++) {\n\n av_free(src[i]);\n\n av_free(dst[i]);\n\n av_free(out[i]);\n\n }\n\n\n\n return res;\n\n}\n", + "output": "1", + "index": 8478 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "void ff_mjpeg_encode_picture_header(AVCodecContext *avctx, PutBitContext *pb,\n\n ScanTable *intra_scantable,\n\n uint16_t intra_matrix[64])\n\n{\n\n int chroma_h_shift, chroma_v_shift;\n\n const int lossless = avctx->codec_id != AV_CODEC_ID_MJPEG;\n\n int hsample[3], vsample[3];\n\n\n\n av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift,\n\n &chroma_v_shift);\n\n\n\n if (avctx->codec->id == AV_CODEC_ID_LJPEG &&\n\n avctx->pix_fmt == AV_PIX_FMT_BGR24) {\n\n vsample[0] = hsample[0] =\n\n vsample[1] = hsample[1] =\n\n vsample[2] = hsample[2] = 1;\n\n } else {\n\n vsample[0] = 2;\n\n vsample[1] = 2 >> chroma_v_shift;\n\n vsample[2] = 2 >> chroma_v_shift;\n\n hsample[0] = 2;\n\n hsample[1] = 2 >> chroma_h_shift;\n\n hsample[2] = 2 >> chroma_h_shift;\n\n }\n\n\n\n put_marker(pb, SOI);\n\n\n\n jpeg_put_comments(avctx, pb);\n\n\n\n jpeg_table_header(pb, intra_scantable, intra_matrix);\n\n\n\n switch (avctx->codec_id) {\n\n case AV_CODEC_ID_MJPEG: put_marker(pb, SOF0 ); break;\n\n case AV_CODEC_ID_LJPEG: put_marker(pb, SOF3 ); break;\n\n default: assert(0);\n\n }\n\n\n\n put_bits(pb, 16, 17);\n\n if (lossless && avctx->pix_fmt == AV_PIX_FMT_BGR24)\n\n put_bits(pb, 8, 9); /* 9 bits/component RCT */\n\n else\n\n put_bits(pb, 8, 8); /* 8 bits/component */\n\n put_bits(pb, 16, avctx->height);\n\n put_bits(pb, 16, avctx->width);\n\n put_bits(pb, 8, 3); /* 3 components */\n\n\n\n /* Y component */\n\n put_bits(pb, 8, 1); /* component number */\n\n put_bits(pb, 4, hsample[0]); /* H factor */\n\n put_bits(pb, 4, vsample[0]); /* V factor */\n\n put_bits(pb, 8, 0); /* select matrix */\n\n\n\n /* Cb component */\n\n put_bits(pb, 8, 2); /* component number */\n\n put_bits(pb, 4, hsample[1]); /* H factor */\n\n put_bits(pb, 4, vsample[1]); /* V factor */\n\n put_bits(pb, 8, 0); /* select matrix */\n\n\n\n /* Cr component */\n\n put_bits(pb, 8, 3); /* component number */\n\n put_bits(pb, 4, hsample[2]); /* H factor */\n\n put_bits(pb, 4, vsample[2]); /* V factor */\n\n put_bits(pb, 8, 0); /* select matrix */\n\n\n\n /* scan header */\n\n put_marker(pb, SOS);\n\n put_bits(pb, 16, 12); /* length */\n\n put_bits(pb, 8, 3); /* 3 components */\n\n\n\n /* Y component */\n\n put_bits(pb, 8, 1); /* index */\n\n put_bits(pb, 4, 0); /* DC huffman table index */\n\n put_bits(pb, 4, 0); /* AC huffman table index */\n\n\n\n /* Cb component */\n\n put_bits(pb, 8, 2); /* index */\n\n put_bits(pb, 4, 1); /* DC huffman table index */\n\n put_bits(pb, 4, lossless ? 0 : 1); /* AC huffman table index */\n\n\n\n /* Cr component */\n\n put_bits(pb, 8, 3); /* index */\n\n put_bits(pb, 4, 1); /* DC huffman table index */\n\n put_bits(pb, 4, lossless ? 0 : 1); /* AC huffman table index */\n\n\n\n put_bits(pb, 8, lossless ? avctx->prediction_method + 1 : 0); /* Ss (not used) */\n\n\n\n switch (avctx->codec_id) {\n\n case AV_CODEC_ID_MJPEG: put_bits(pb, 8, 63); break; /* Se (not used) */\n\n case AV_CODEC_ID_LJPEG: put_bits(pb, 8, 0); break; /* not used */\n\n default: assert(0);\n\n }\n\n\n\n put_bits(pb, 8, 0); /* Ah/Al (not used) */\n\n}\n", + "output": "0", + "index": 1175 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static av_cold int decode_init(AVCodecContext * avctx)\n\n{\n\n MPADecodeContext *s = avctx->priv_data;\n\n static int init=0;\n\n int i, j, k;\n\n\n\n s->avctx = avctx;\n\n\n\n ff_mpadsp_init(&s->mpadsp);\n\n\n\n avctx->sample_fmt= OUT_FMT;\n\n s->error_recognition= avctx->error_recognition;\n\n\n\n if (!init && !avctx->parse_only) {\n\n int offset;\n\n\n\n /* scale factors table for layer 1/2 */\n\n for(i=0;i<64;i++) {\n\n int shift, mod;\n\n /* 1.0 (i = 3) is normalized to 2 ^ FRAC_BITS */\n\n shift = (i / 3);\n\n mod = i % 3;\n\n scale_factor_modshift[i] = mod | (shift << 2);\n\n }\n\n\n\n /* scale factor multiply for layer 1 */\n\n for(i=0;i<15;i++) {\n\n int n, norm;\n\n n = i + 2;\n\n norm = ((INT64_C(1) << n) * FRAC_ONE) / ((1 << n) - 1);\n\n scale_factor_mult[i][0] = MULLx(norm, FIXR(1.0 * 2.0), FRAC_BITS);\n\n scale_factor_mult[i][1] = MULLx(norm, FIXR(0.7937005259 * 2.0), FRAC_BITS);\n\n scale_factor_mult[i][2] = MULLx(norm, FIXR(0.6299605249 * 2.0), FRAC_BITS);\n\n av_dlog(avctx, \"%d: norm=%x s=%x %x %x\\n\",\n\n i, norm,\n\n scale_factor_mult[i][0],\n\n scale_factor_mult[i][1],\n\n scale_factor_mult[i][2]);\n\n }\n\n\n\n RENAME(ff_mpa_synth_init)(RENAME(ff_mpa_synth_window));\n\n\n\n /* huffman decode tables */\n\n offset = 0;\n\n for(i=1;i<16;i++) {\n\n const HuffTable *h = &mpa_huff_tables[i];\n\n int xsize, x, y;\n\n uint8_t tmp_bits [512];\n\n uint16_t tmp_codes[512];\n\n\n\n memset(tmp_bits , 0, sizeof(tmp_bits ));\n\n memset(tmp_codes, 0, sizeof(tmp_codes));\n\n\n\n xsize = h->xsize;\n\n\n\n j = 0;\n\n for(x=0;xbits [j ];\n\n tmp_codes[(x << 5) | y | ((x&&y)<<4)]= h->codes[j++];\n\n }\n\n }\n\n\n\n /* XXX: fail test */\n\n huff_vlc[i].table = huff_vlc_tables+offset;\n\n huff_vlc[i].table_allocated = huff_vlc_tables_sizes[i];\n\n init_vlc(&huff_vlc[i], 7, 512,\n\n tmp_bits, 1, 1, tmp_codes, 2, 2,\n\n INIT_VLC_USE_NEW_STATIC);\n\n offset += huff_vlc_tables_sizes[i];\n\n }\n\n assert(offset == FF_ARRAY_ELEMS(huff_vlc_tables));\n\n\n\n offset = 0;\n\n for(i=0;i<2;i++) {\n\n huff_quad_vlc[i].table = huff_quad_vlc_tables+offset;\n\n huff_quad_vlc[i].table_allocated = huff_quad_vlc_tables_sizes[i];\n\n init_vlc(&huff_quad_vlc[i], i == 0 ? 7 : 4, 16,\n\n mpa_quad_bits[i], 1, 1, mpa_quad_codes[i], 1, 1,\n\n INIT_VLC_USE_NEW_STATIC);\n\n offset += huff_quad_vlc_tables_sizes[i];\n\n }\n\n assert(offset == FF_ARRAY_ELEMS(huff_quad_vlc_tables));\n\n\n\n for(i=0;i<9;i++) {\n\n k = 0;\n\n for(j=0;j<22;j++) {\n\n band_index_long[i][j] = k;\n\n k += band_size_long[i][j];\n\n }\n\n band_index_long[i][22] = k;\n\n }\n\n\n\n /* compute n ^ (4/3) and store it in mantissa/exp format */\n\n\n\n int_pow_init();\n\n mpegaudio_tableinit();\n\n\n\n for (i = 0; i < 4; i++)\n\n if (ff_mpa_quant_bits[i] < 0)\n\n for (j = 0; j < (1<<(-ff_mpa_quant_bits[i]+1)); j++) {\n\n int val1, val2, val3, steps;\n\n int val = j;\n\n steps = ff_mpa_quant_steps[i];\n\n val1 = val % steps;\n\n val /= steps;\n\n val2 = val % steps;\n\n val3 = val / steps;\n\n division_tabs[i][j] = val1 + (val2 << 4) + (val3 << 8);\n\n }\n\n\n\n\n\n for(i=0;i<7;i++) {\n\n float f;\n\n INTFLOAT v;\n\n if (i != 6) {\n\n f = tan((double)i * M_PI / 12.0);\n\n v = FIXR(f / (1.0 + f));\n\n } else {\n\n v = FIXR(1.0);\n\n }\n\n is_table[0][i] = v;\n\n is_table[1][6 - i] = v;\n\n }\n\n /* invalid values */\n\n for(i=7;i<16;i++)\n\n is_table[0][i] = is_table[1][i] = 0.0;\n\n\n\n for(i=0;i<16;i++) {\n\n double f;\n\n int e, k;\n\n\n\n for(j=0;j<2;j++) {\n\n e = -(j + 1) * ((i + 1) >> 1);\n\n f = pow(2.0, e / 4.0);\n\n k = i & 1;\n\n is_table_lsf[j][k ^ 1][i] = FIXR(f);\n\n is_table_lsf[j][k][i] = FIXR(1.0);\n\n av_dlog(avctx, \"is_table_lsf %d %d: %x %x\\n\",\n\n i, j, is_table_lsf[j][0][i], is_table_lsf[j][1][i]);\n\n }\n\n }\n\n\n\n for(i=0;i<8;i++) {\n\n float ci, cs, ca;\n\n ci = ci_table[i];\n\n cs = 1.0 / sqrt(1.0 + ci * ci);\n\n ca = cs * ci;\n\n csa_table[i][0] = FIXHR(cs/4);\n\n csa_table[i][1] = FIXHR(ca/4);\n\n csa_table[i][2] = FIXHR(ca/4) + FIXHR(cs/4);\n\n csa_table[i][3] = FIXHR(ca/4) - FIXHR(cs/4);\n\n csa_table_float[i][0] = cs;\n\n csa_table_float[i][1] = ca;\n\n csa_table_float[i][2] = ca + cs;\n\n csa_table_float[i][3] = ca - cs;\n\n }\n\n\n\n /* compute mdct windows */\n\n for(i=0;i<36;i++) {\n\n for(j=0; j<4; j++){\n\n double d;\n\n\n\n if(j==2 && i%3 != 1)\n\n continue;\n\n\n\n d= sin(M_PI * (i + 0.5) / 36.0);\n\n if(j==1){\n\n if (i>=30) d= 0;\n\n else if(i>=24) d= sin(M_PI * (i - 18 + 0.5) / 12.0);\n\n else if(i>=18) d= 1;\n\n }else if(j==3){\n\n if (i< 6) d= 0;\n\n else if(i< 12) d= sin(M_PI * (i - 6 + 0.5) / 12.0);\n\n else if(i< 18) d= 1;\n\n }\n\n //merge last stage of imdct into the window coefficients\n\n d*= 0.5 / cos(M_PI*(2*i + 19)/72);\n\n\n\n if(j==2)\n\n mdct_win[j][i/3] = FIXHR((d / (1<<5)));\n\n else\n\n mdct_win[j][i ] = FIXHR((d / (1<<5)));\n\n }\n\n }\n\n\n\n /* NOTE: we do frequency inversion adter the MDCT by changing\n\n the sign of the right window coefs */\n\n for(j=0;j<4;j++) {\n\n for(i=0;i<36;i+=2) {\n\n mdct_win[j + 4][i] = mdct_win[j][i];\n\n mdct_win[j + 4][i + 1] = -mdct_win[j][i + 1];\n\n }\n\n }\n\n\n\n init = 1;\n\n }\n\n\n\n if (avctx->codec_id == CODEC_ID_MP3ADU)\n\n s->adu_mode = 1;\n\n return 0;\n\n}\n", + "output": "0", + "index": 8482 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static ssize_t gem_receive(NetClientState *nc, const uint8_t *buf, size_t size)\n\n{\n\n unsigned desc[2];\n\n target_phys_addr_t packet_desc_addr, last_desc_addr;\n\n GemState *s;\n\n unsigned rxbufsize, bytes_to_copy;\n\n unsigned rxbuf_offset;\n\n uint8_t rxbuf[2048];\n\n uint8_t *rxbuf_ptr;\n\n\n\n s = DO_UPCAST(NICState, nc, nc)->opaque;\n\n\n\n /* Do nothing if receive is not enabled. */\n\n if (!(s->regs[GEM_NWCTRL] & GEM_NWCTRL_RXENA)) {\n\n return -1;\n\n }\n\n\n\n /* Is this destination MAC address \"for us\" ? */\n\n if (gem_mac_address_filter(s, buf) == GEM_RX_REJECT) {\n\n return -1;\n\n }\n\n\n\n /* Discard packets with receive length error enabled ? */\n\n if (s->regs[GEM_NWCFG] & GEM_NWCFG_LERR_DISC) {\n\n unsigned type_len;\n\n\n\n /* Fish the ethertype / length field out of the RX packet */\n\n type_len = buf[12] << 8 | buf[13];\n\n /* It is a length field, not an ethertype */\n\n if (type_len < 0x600) {\n\n if (size < type_len) {\n\n /* discard */\n\n return -1;\n\n }\n\n }\n\n }\n\n\n\n /*\n\n * Determine configured receive buffer offset (probably 0)\n\n */\n\n rxbuf_offset = (s->regs[GEM_NWCFG] & GEM_NWCFG_BUFF_OFST_M) >>\n\n GEM_NWCFG_BUFF_OFST_S;\n\n\n\n /* The configure size of each receive buffer. Determines how many\n\n * buffers needed to hold this packet.\n\n */\n\n rxbufsize = ((s->regs[GEM_DMACFG] & GEM_DMACFG_RBUFSZ_M) >>\n\n GEM_DMACFG_RBUFSZ_S) * GEM_DMACFG_RBUFSZ_MUL;\n\n bytes_to_copy = size;\n\n\n\n /* Strip of FCS field ? (usually yes) */\n\n if (s->regs[GEM_NWCFG] & GEM_NWCFG_STRIP_FCS) {\n\n rxbuf_ptr = (void *)buf;\n\n } else {\n\n unsigned crc_val;\n\n int crc_offset;\n\n\n\n /* The application wants the FCS field, which QEMU does not provide.\n\n * We must try and caclculate one.\n\n */\n\n\n\n memcpy(rxbuf, buf, size);\n\n memset(rxbuf + size, 0, sizeof(rxbuf) - size);\n\n rxbuf_ptr = rxbuf;\n\n crc_val = cpu_to_le32(crc32(0, rxbuf, MAX(size, 60)));\n\n if (size < 60) {\n\n crc_offset = 60;\n\n } else {\n\n crc_offset = size;\n\n }\n\n memcpy(rxbuf + crc_offset, &crc_val, sizeof(crc_val));\n\n\n\n bytes_to_copy += 4;\n\n size += 4;\n\n }\n\n\n\n /* Pad to minimum length */\n\n if (size < 64) {\n\n size = 64;\n\n }\n\n\n\n DB_PRINT(\"config bufsize: %d packet size: %ld\\n\", rxbufsize, size);\n\n\n\n packet_desc_addr = s->rx_desc_addr;\n\n while (1) {\n\n DB_PRINT(\"read descriptor 0x%x\\n\", packet_desc_addr);\n\n /* read current descriptor */\n\n cpu_physical_memory_read(packet_desc_addr,\n\n (uint8_t *)&desc[0], sizeof(desc));\n\n\n\n /* Descriptor owned by software ? */\n\n if (rx_desc_get_ownership(desc) == 1) {\n\n DB_PRINT(\"descriptor 0x%x owned by sw.\\n\", packet_desc_addr);\n\n s->regs[GEM_RXSTATUS] |= GEM_RXSTATUS_NOBUF;\n\n /* Handle interrupt consequences */\n\n gem_update_int_status(s);\n\n return -1;\n\n }\n\n\n\n DB_PRINT(\"copy %d bytes to 0x%x\\n\", MIN(bytes_to_copy, rxbufsize),\n\n rx_desc_get_buffer(desc));\n\n\n\n /*\n\n * Let's have QEMU lend a helping hand.\n\n */\n\n if (rx_desc_get_buffer(desc) == 0) {\n\n DB_PRINT(\"Invalid RX buffer (NULL) for descriptor 0x%x\\n\",\n\n packet_desc_addr);\n\n break;\n\n }\n\n\n\n /* Copy packet data to emulated DMA buffer */\n\n cpu_physical_memory_write(rx_desc_get_buffer(desc) + rxbuf_offset,\n\n rxbuf_ptr, MIN(bytes_to_copy, rxbufsize));\n\n bytes_to_copy -= MIN(bytes_to_copy, rxbufsize);\n\n rxbuf_ptr += MIN(bytes_to_copy, rxbufsize);\n\n if (bytes_to_copy == 0) {\n\n break;\n\n }\n\n\n\n /* Next descriptor */\n\n if (rx_desc_get_wrap(desc)) {\n\n packet_desc_addr = s->regs[GEM_RXQBASE];\n\n } else {\n\n packet_desc_addr += 8;\n\n }\n\n }\n\n\n\n DB_PRINT(\"set length: %ld, EOF on descriptor 0x%x\\n\", size,\n\n (unsigned)packet_desc_addr);\n\n\n\n /* Update last descriptor with EOF and total length */\n\n rx_desc_set_eof(desc);\n\n rx_desc_set_length(desc, size);\n\n cpu_physical_memory_write(packet_desc_addr,\n\n (uint8_t *)&desc[0], sizeof(desc));\n\n\n\n /* Advance RX packet descriptor Q */\n\n last_desc_addr = packet_desc_addr;\n\n packet_desc_addr = s->rx_desc_addr;\n\n s->rx_desc_addr = last_desc_addr;\n\n if (rx_desc_get_wrap(desc)) {\n\n s->rx_desc_addr = s->regs[GEM_RXQBASE];\n\n } else {\n\n s->rx_desc_addr += 8;\n\n }\n\n\n\n DB_PRINT(\"set SOF, OWN on descriptor 0x%08x\\n\", packet_desc_addr);\n\n\n\n /* Count it */\n\n gem_receive_updatestats(s, buf, size);\n\n\n\n /* Update first descriptor (which could also be the last) */\n\n /* read descriptor */\n\n cpu_physical_memory_read(packet_desc_addr,\n\n (uint8_t *)&desc[0], sizeof(desc));\n\n rx_desc_set_sof(desc);\n\n rx_desc_set_ownership(desc);\n\n cpu_physical_memory_write(packet_desc_addr,\n\n (uint8_t *)&desc[0], sizeof(desc));\n\n\n\n s->regs[GEM_RXSTATUS] |= GEM_RXSTATUS_FRMRCVD;\n\n\n\n /* Handle interrupt consequences */\n\n gem_update_int_status(s);\n\n\n\n return size;\n\n}\n", + "output": "0", + "index": 5887 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb)\n\n{\n\n int pqindex, lowquant;\n\n int status;\n\n int mbmodetab, imvtab, icbptab, twomvbptab, fourmvbptab; /* useful only for debugging */\n\n int scale, shift, i; /* for initializing LUT for intensity compensation */\n\n\n\n v->numref=0;\n\n v->fcm=0;\n\n v->field_mode=0;\n\n v->p_frame_skipped = 0;\n\n if (v->second_field) {\n\n v->s.pict_type = (v->fptype & 1) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;\n\n if (v->fptype & 4)\n\n v->s.pict_type = (v->fptype & 1) ? AV_PICTURE_TYPE_BI : AV_PICTURE_TYPE_B;\n\n v->s.current_picture_ptr->f.pict_type = v->s.pict_type;\n\n if (!v->pic_header_flag)\n\n goto parse_common_info;\n\n }\n\n\n\n if (v->interlace) {\n\n v->fcm = decode012(gb);\n\n if (v->fcm) {\n\n if (v->fcm == 2)\n\n v->field_mode = 1;\n\n else\n\n v->field_mode = 0;\n\n if (!v->warn_interlaced++)\n\n av_log(v->s.avctx, AV_LOG_ERROR,\n\n \"Interlaced frames/fields support is incomplete\\n\");\n\n }\n\n }\n\n\n\n if (v->field_mode) {\n\n v->fptype = get_bits(gb, 3);\n\n v->s.pict_type = (v->fptype & 2) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;\n\n if (v->fptype & 4) // B-picture\n\n v->s.pict_type = (v->fptype & 2) ? AV_PICTURE_TYPE_BI : AV_PICTURE_TYPE_B;\n\n } else {\n\n switch (get_unary(gb, 0, 4)) {\n\n case 0:\n\n v->s.pict_type = AV_PICTURE_TYPE_P;\n\n break;\n\n case 1:\n\n v->s.pict_type = AV_PICTURE_TYPE_B;\n\n break;\n\n case 2:\n\n v->s.pict_type = AV_PICTURE_TYPE_I;\n\n break;\n\n case 3:\n\n v->s.pict_type = AV_PICTURE_TYPE_BI;\n\n break;\n\n case 4:\n\n v->s.pict_type = AV_PICTURE_TYPE_P; // skipped pic\n\n v->p_frame_skipped = 1;\n\n break;\n\n }\n\n }\n\n if (v->tfcntrflag)\n\n skip_bits(gb, 8);\n\n if (v->broadcast) {\n\n if (!v->interlace || v->psf) {\n\n v->rptfrm = get_bits(gb, 2);\n\n } else {\n\n v->tff = get_bits1(gb);\n\n v->rff = get_bits1(gb);\n\n }\n\n }\n\n if (v->panscanflag) {\n\n av_log_missing_feature(v->s.avctx, \"Pan-scan\", 0);\n\n //...\n\n }\n\n if (v->p_frame_skipped) {\n\n return 0;\n\n }\n\n v->rnd = get_bits1(gb);\n\n if (v->interlace)\n\n v->uvsamp = get_bits1(gb);\n\n if (v->field_mode) {\n\n if (!v->refdist_flag)\n\n v->refdist = 0;\n\n else {\n\n if ((v->s.pict_type != AV_PICTURE_TYPE_B)\n\n && (v->s.pict_type != AV_PICTURE_TYPE_BI)) {\n\n v->refdist = get_bits(gb, 2);\n\n if (v->refdist == 3)\n\n v->refdist += get_unary(gb, 0, 16);\n\n } else {\n\n v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);\n\n v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];\n\n v->frfd = (v->bfraction * v->refdist) >> 8;\n\n v->brfd = v->refdist - v->frfd - 1;\n\n if (v->brfd < 0)\n\n v->brfd = 0;\n\n }\n\n }\n\n goto parse_common_info;\n\n }\n\n if (v->finterpflag)\n\n v->interpfrm = get_bits1(gb);\n\n if (v->s.pict_type == AV_PICTURE_TYPE_B) {\n\n v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);\n\n v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];\n\n if (v->bfraction == 0) {\n\n v->s.pict_type = AV_PICTURE_TYPE_BI; /* XXX: should not happen here */\n\n }\n\n }\n\n\n\n parse_common_info:\n\n if (v->field_mode)\n\n v->cur_field_type = !(v->tff ^ v->second_field);\n\n pqindex = get_bits(gb, 5);\n\n if (!pqindex)\n\n return -1;\n\n v->pqindex = pqindex;\n\n if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)\n\n v->pq = ff_vc1_pquant_table[0][pqindex];\n\n else\n\n v->pq = ff_vc1_pquant_table[1][pqindex];\n\n\n\n v->pquantizer = 1;\n\n if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)\n\n v->pquantizer = pqindex < 9;\n\n if (v->quantizer_mode == QUANT_NON_UNIFORM)\n\n v->pquantizer = 0;\n\n v->pqindex = pqindex;\n\n if (pqindex < 9)\n\n v->halfpq = get_bits1(gb);\n\n else\n\n v->halfpq = 0;\n\n if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)\n\n v->pquantizer = get_bits1(gb);\n\n if (v->postprocflag)\n\n v->postproc = get_bits(gb, 2);\n\n\n\n if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_P)\n\n v->use_ic = 0;\n\n\n\n if (v->parse_only)\n\n return 0;\n\n\n\n switch (v->s.pict_type) {\n\n case AV_PICTURE_TYPE_I:\n\n case AV_PICTURE_TYPE_BI:\n\n if (v->fcm == 1) { //interlace frame picture\n\n status = bitplane_decoding(v->fieldtx_plane, &v->fieldtx_is_raw, v);\n\n if (status < 0)\n\n return -1;\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"FIELDTX plane encoding: \"\n\n \"Imode: %i, Invert: %i\\n\", status>>1, status&1);\n\n }\n\n status = bitplane_decoding(v->acpred_plane, &v->acpred_is_raw, v);\n\n if (status < 0)\n\n return -1;\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"ACPRED plane encoding: \"\n\n \"Imode: %i, Invert: %i\\n\", status>>1, status&1);\n\n v->condover = CONDOVER_NONE;\n\n if (v->overlap && v->pq <= 8) {\n\n v->condover = decode012(gb);\n\n if (v->condover == CONDOVER_SELECT) {\n\n status = bitplane_decoding(v->over_flags_plane, &v->overflg_is_raw, v);\n\n if (status < 0)\n\n return -1;\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"CONDOVER plane encoding: \"\n\n \"Imode: %i, Invert: %i\\n\", status>>1, status&1);\n\n }\n\n }\n\n break;\n\n case AV_PICTURE_TYPE_P:\n\n if (v->field_mode) {\n\n av_log(v->s.avctx, AV_LOG_ERROR, \"P Fields do not work currently\\n\");\n\n return -1;\n\n v->numref = get_bits1(gb);\n\n if (!v->numref) {\n\n v->reffield = get_bits1(gb);\n\n v->ref_field_type[0] = v->reffield ^ !v->cur_field_type;\n\n }\n\n }\n\n if (v->extended_mv)\n\n v->mvrange = get_unary(gb, 0, 3);\n\n else\n\n v->mvrange = 0;\n\n if (v->interlace) {\n\n if (v->extended_dmv)\n\n v->dmvrange = get_unary(gb, 0, 3);\n\n else\n\n v->dmvrange = 0;\n\n if (v->fcm == 1) { // interlaced frame picture\n\n v->fourmvswitch = get_bits1(gb);\n\n v->intcomp = get_bits1(gb);\n\n if (v->intcomp) {\n\n v->lumscale = get_bits(gb, 6);\n\n v->lumshift = get_bits(gb, 6);\n\n INIT_LUT(v->lumscale, v->lumshift, v->luty, v->lutuv);\n\n }\n\n status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"SKIPMB plane encoding: \"\n\n \"Imode: %i, Invert: %i\\n\", status>>1, status&1);\n\n mbmodetab = get_bits(gb, 2);\n\n if (v->fourmvswitch)\n\n v->mbmode_vlc = &ff_vc1_intfr_4mv_mbmode_vlc[mbmodetab];\n\n else\n\n v->mbmode_vlc = &ff_vc1_intfr_non4mv_mbmode_vlc[mbmodetab];\n\n imvtab = get_bits(gb, 2);\n\n v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];\n\n // interlaced p-picture cbpcy range is [1, 63]\n\n icbptab = get_bits(gb, 3);\n\n v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];\n\n twomvbptab = get_bits(gb, 2);\n\n v->twomvbp_vlc = &ff_vc1_2mv_block_pattern_vlc[twomvbptab];\n\n if (v->fourmvswitch) {\n\n fourmvbptab = get_bits(gb, 2);\n\n v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];\n\n }\n\n }\n\n }\n\n v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13\n\n v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11\n\n v->range_x = 1 << (v->k_x - 1);\n\n v->range_y = 1 << (v->k_y - 1);\n\n\n\n if (v->pq < 5)\n\n v->tt_index = 0;\n\n else if (v->pq < 13)\n\n v->tt_index = 1;\n\n else\n\n v->tt_index = 2;\n\n if (v->fcm != 1) {\n\n int mvmode;\n\n mvmode = get_unary(gb, 1, 4);\n\n lowquant = (v->pq > 12) ? 0 : 1;\n\n v->mv_mode = ff_vc1_mv_pmode_table[lowquant][mvmode];\n\n if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {\n\n int mvmode2;\n\n mvmode2 = get_unary(gb, 1, 3);\n\n v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][mvmode2];\n\n if (v->field_mode)\n\n v->intcompfield = decode210(gb);\n\n v->lumscale = get_bits(gb, 6);\n\n v->lumshift = get_bits(gb, 6);\n\n INIT_LUT(v->lumscale, v->lumshift, v->luty, v->lutuv);\n\n if ((v->field_mode) && !v->intcompfield) {\n\n v->lumscale2 = get_bits(gb, 6);\n\n v->lumshift2 = get_bits(gb, 6);\n\n INIT_LUT(v->lumscale2, v->lumshift2, v->luty2, v->lutuv2);\n\n }\n\n v->use_ic = 1;\n\n }\n\n v->qs_last = v->s.quarter_sample;\n\n if (v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)\n\n v->s.quarter_sample = 0;\n\n else if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {\n\n if (v->mv_mode2 == MV_PMODE_1MV_HPEL || v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)\n\n v->s.quarter_sample = 0;\n\n else\n\n v->s.quarter_sample = 1;\n\n } else\n\n v->s.quarter_sample = 1;\n\n v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN\n\n || (v->mv_mode == MV_PMODE_INTENSITY_COMP\n\n && v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN));\n\n }\n\n if (v->fcm == 0) { // progressive\n\n if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&\n\n v->mv_mode2 == MV_PMODE_MIXED_MV)\n\n || v->mv_mode == MV_PMODE_MIXED_MV) {\n\n status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);\n\n if (status < 0)\n\n return -1;\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"MB MV Type plane encoding: \"\n\n \"Imode: %i, Invert: %i\\n\", status>>1, status&1);\n\n } else {\n\n v->mv_type_is_raw = 0;\n\n memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);\n\n }\n\n status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);\n\n if (status < 0)\n\n return -1;\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"MB Skip plane encoding: \"\n\n \"Imode: %i, Invert: %i\\n\", status>>1, status&1);\n\n\n\n /* Hopefully this is correct for P frames */\n\n v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables\n\n v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];\n\n } else if (v->fcm == 1) { // frame interlaced\n\n v->qs_last = v->s.quarter_sample;\n\n v->s.quarter_sample = 1;\n\n v->s.mspel = 1;\n\n } else { // field interlaced\n\n mbmodetab = get_bits(gb, 3);\n\n imvtab = get_bits(gb, 2 + v->numref);\n\n if (!v->numref)\n\n v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];\n\n else\n\n v->imv_vlc = &ff_vc1_2ref_mvdata_vlc[imvtab];\n\n icbptab = get_bits(gb, 3);\n\n v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];\n\n if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&\n\n v->mv_mode2 == MV_PMODE_MIXED_MV) || v->mv_mode == MV_PMODE_MIXED_MV) {\n\n fourmvbptab = get_bits(gb, 2);\n\n v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];\n\n v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[mbmodetab];\n\n } else {\n\n v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[mbmodetab];\n\n }\n\n }\n\n if (v->dquant) {\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"VOP DQuant info\\n\");\n\n vop_dquant_decoding(v);\n\n }\n\n\n\n v->ttfrm = 0; //FIXME Is that so ?\n\n if (v->vstransform) {\n\n v->ttmbf = get_bits1(gb);\n\n if (v->ttmbf) {\n\n v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];\n\n }\n\n } else {\n\n v->ttmbf = 1;\n\n v->ttfrm = TT_8X8;\n\n }\n\n break;\n\n case AV_PICTURE_TYPE_B:\n\n // TODO: implement interlaced frame B picture decoding\n\n if (v->fcm == 1)\n\n return -1;\n\n if (v->extended_mv)\n\n v->mvrange = get_unary(gb, 0, 3);\n\n else\n\n v->mvrange = 0;\n\n v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13\n\n v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11\n\n v->range_x = 1 << (v->k_x - 1);\n\n v->range_y = 1 << (v->k_y - 1);\n\n\n\n if (v->pq < 5)\n\n v->tt_index = 0;\n\n else if (v->pq < 13)\n\n v->tt_index = 1;\n\n else\n\n v->tt_index = 2;\n\n\n\n if (v->field_mode) {\n\n int mvmode;\n\n av_log(v->s.avctx, AV_LOG_ERROR, \"B Fields do not work currently\\n\");\n\n return -1;\n\n if (v->extended_dmv)\n\n v->dmvrange = get_unary(gb, 0, 3);\n\n mvmode = get_unary(gb, 1, 3);\n\n lowquant = (v->pq > 12) ? 0 : 1;\n\n v->mv_mode = ff_vc1_mv_pmode_table2[lowquant][mvmode];\n\n v->qs_last = v->s.quarter_sample;\n\n v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV || v->mv_mode == MV_PMODE_MIXED_MV);\n\n v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN || v->mv_mode == MV_PMODE_1MV_HPEL);\n\n status = bitplane_decoding(v->forward_mb_plane, &v->fmb_is_raw, v);\n\n if (status < 0)\n\n return -1;\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"MB Forward Type plane encoding: \"\n\n \"Imode: %i, Invert: %i\\n\", status>>1, status&1);\n\n mbmodetab = get_bits(gb, 3);\n\n if (v->mv_mode == MV_PMODE_MIXED_MV)\n\n v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[mbmodetab];\n\n else\n\n v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[mbmodetab];\n\n imvtab = get_bits(gb, 3);\n\n v->imv_vlc = &ff_vc1_2ref_mvdata_vlc[imvtab];\n\n icbptab = get_bits(gb, 3);\n\n v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];\n\n if (v->mv_mode == MV_PMODE_MIXED_MV) {\n\n fourmvbptab = get_bits(gb, 2);\n\n v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];\n\n }\n\n v->numref = 1; // interlaced field B pictures are always 2-ref\n\n } else {\n\n v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;\n\n v->qs_last = v->s.quarter_sample;\n\n v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);\n\n v->s.mspel = v->s.quarter_sample;\n\n status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);\n\n if (status < 0)\n\n return -1;\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"MB Direct Type plane encoding: \"\n\n \"Imode: %i, Invert: %i\\n\", status>>1, status&1);\n\n status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);\n\n if (status < 0)\n\n return -1;\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"MB Skip plane encoding: \"\n\n \"Imode: %i, Invert: %i\\n\", status>>1, status&1);\n\n v->s.mv_table_index = get_bits(gb, 2);\n\n v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];\n\n }\n\n\n\n if (v->dquant) {\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"VOP DQuant info\\n\");\n\n vop_dquant_decoding(v);\n\n }\n\n\n\n v->ttfrm = 0;\n\n if (v->vstransform) {\n\n v->ttmbf = get_bits1(gb);\n\n if (v->ttmbf) {\n\n v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];\n\n }\n\n } else {\n\n v->ttmbf = 1;\n\n v->ttfrm = TT_8X8;\n\n }\n\n break;\n\n }\n\n\n\n /* AC Syntax */\n\n v->c_ac_table_index = decode012(gb);\n\n if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI) {\n\n v->y_ac_table_index = decode012(gb);\n\n }\n\n /* DC Syntax */\n\n v->s.dc_table_index = get_bits1(gb);\n\n if ((v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)\n\n && v->dquant) {\n\n av_log(v->s.avctx, AV_LOG_DEBUG, \"VOP DQuant info\\n\");\n\n vop_dquant_decoding(v);\n\n }\n\n\n\n v->bi_type = 0;\n\n if (v->s.pict_type == AV_PICTURE_TYPE_BI) {\n\n v->s.pict_type = AV_PICTURE_TYPE_B;\n\n v->bi_type = 1;\n\n }\n\n return 0;\n\n}\n", + "output": "1", + "index": 25380 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int decode_type1(GetByteContext *gb, PutByteContext *pb)\n\n{\n\n unsigned opcode, len;\n\n int high = 0;\n\n int i, pos;\n\n\n\n while (bytestream2_get_bytes_left(gb) > 0) {\n\n GetByteContext gbc;\n\n\n\n while (bytestream2_get_bytes_left(gb) > 0) {\n\n while (bytestream2_get_bytes_left(gb) > 0) {\n\n opcode = bytestream2_get_byte(gb);\n\n high = opcode >= 0x20;\n\n if (high)\n\n break;\n\n if (opcode)\n\n break;\n\n opcode = bytestream2_get_byte(gb);\n\n if (opcode < 0xF8) {\n\n opcode = opcode + 32;\n\n break;\n\n }\n\n i = opcode - 0xF8;\n\n if (i) {\n\n len = 256;\n\n do {\n\n len *= 2;\n\n --i;\n\n } while (i);\n\n } else {\n\n len = 280;\n\n }\n\n do {\n\n bytestream2_put_le32(pb, bytestream2_get_le32(gb));\n\n bytestream2_put_le32(pb, bytestream2_get_le32(gb));\n\n len -= 8;\n\n } while (len && bytestream2_get_bytes_left(gb) > 0);\n\n }\n\n\n\n if (!high) {\n\n do {\n\n bytestream2_put_byte(pb, bytestream2_get_byte(gb));\n\n --opcode;\n\n } while (opcode && bytestream2_get_bytes_left(gb) > 0);\n\n\n\n while (bytestream2_get_bytes_left(gb) > 0) {\n\n GetByteContext gbc;\n\n\n\n opcode = bytestream2_get_byte(gb);\n\n if (opcode >= 0x20)\n\n break;\n\n bytestream2_init(&gbc, pb->buffer_start, pb->buffer_end - pb->buffer_start);\n\n\n\n pos = -(opcode | 32 * bytestream2_get_byte(gb)) - 1;\n\n bytestream2_seek(&gbc, bytestream2_tell_p(pb) + pos, SEEK_SET);\n\n bytestream2_put_byte(pb, bytestream2_get_byte(&gbc));\n\n bytestream2_put_byte(pb, bytestream2_get_byte(&gbc));\n\n bytestream2_put_byte(pb, bytestream2_get_byte(&gbc));\n\n bytestream2_put_byte(pb, bytestream2_get_byte(gb));\n\n }\n\n }\n\n high = 0;\n\n if (opcode < 0x40)\n\n break;\n\n bytestream2_init(&gbc, pb->buffer_start, pb->buffer_end - pb->buffer_start);\n\n pos = (-((opcode & 0x1F) | 32 * bytestream2_get_byte(gb)) - 1);\n\n bytestream2_seek(&gbc, bytestream2_tell_p(pb) + pos, SEEK_SET);\n\n bytestream2_put_byte(pb, bytestream2_get_byte(&gbc));\n\n bytestream2_put_byte(pb, bytestream2_get_byte(&gbc));\n\n len = (opcode >> 5) - 1;\n\n do {\n\n bytestream2_put_byte(pb, bytestream2_get_byte(&gbc));\n\n --len;\n\n } while (len && bytestream2_get_bytes_left(&gbc) > 0);\n\n }\n\n len = opcode & 0x1F;\n\n if (!len) {\n\n if (!bytestream2_peek_byte(gb)) {\n\n do {\n\n bytestream2_skip(gb, 1);\n\n len += 255;\n\n } while (!bytestream2_peek_byte(gb) && bytestream2_get_bytes_left(gb) > 0);\n\n }\n\n len += bytestream2_get_byte(gb) + 31;\n\n }\n\n pos = -bytestream2_get_byte(gb);\n\n bytestream2_init(&gbc, pb->buffer_start, pb->buffer_end - pb->buffer_start);\n\n bytestream2_seek(&gbc, bytestream2_tell_p(pb) + pos - (bytestream2_get_byte(gb) << 8), SEEK_SET);\n\n if (bytestream2_tell_p(pb) == bytestream2_tell(&gbc))\n\n break;\n\n if (len < 5 || bytestream2_tell_p(pb) - bytestream2_tell(&gbc) < 4) {\n\n bytestream2_put_byte(pb, bytestream2_get_byte(&gbc));\n\n bytestream2_put_byte(pb, bytestream2_get_byte(&gbc));\n\n bytestream2_put_byte(pb, bytestream2_get_byte(&gbc));\n\n do {\n\n bytestream2_put_byte(pb, bytestream2_get_byte(&gbc));\n\n --len;\n\n } while (len && bytestream2_get_bytes_left(&gbc) > 0);\n\n } else {\n\n bytestream2_put_le32(pb, bytestream2_get_le32(&gbc));\n\n len--;\n\n do {\n\n bytestream2_put_byte(pb, bytestream2_get_byte(&gbc));\n\n len--;\n\n } while (len && bytestream2_get_bytes_left(&gbc) > 0);\n\n }\n\n }\n\n\n\n return 0;\n\n}\n", + "output": "0", + "index": 3110 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void disas_simd_mod_imm(DisasContext *s, uint32_t insn)\n\n{\n\n int rd = extract32(insn, 0, 5);\n\n int cmode = extract32(insn, 12, 4);\n\n int cmode_3_1 = extract32(cmode, 1, 3);\n\n int cmode_0 = extract32(cmode, 0, 1);\n\n int o2 = extract32(insn, 11, 1);\n\n uint64_t abcdefgh = extract32(insn, 5, 5) | (extract32(insn, 16, 3) << 5);\n\n bool is_neg = extract32(insn, 29, 1);\n\n bool is_q = extract32(insn, 30, 1);\n\n uint64_t imm = 0;\n\n TCGv_i64 tcg_rd, tcg_imm;\n\n int i;\n\n\n\n if (o2 != 0 || ((cmode == 0xf) && is_neg && !is_q)) {\n\n unallocated_encoding(s);\n\n return;\n\n }\n\n\n\n if (!fp_access_check(s)) {\n\n return;\n\n }\n\n\n\n /* See AdvSIMDExpandImm() in ARM ARM */\n\n switch (cmode_3_1) {\n\n case 0: /* Replicate(Zeros(24):imm8, 2) */\n\n case 1: /* Replicate(Zeros(16):imm8:Zeros(8), 2) */\n\n case 2: /* Replicate(Zeros(8):imm8:Zeros(16), 2) */\n\n case 3: /* Replicate(imm8:Zeros(24), 2) */\n\n {\n\n int shift = cmode_3_1 * 8;\n\n imm = bitfield_replicate(abcdefgh << shift, 32);\n\n break;\n\n }\n\n case 4: /* Replicate(Zeros(8):imm8, 4) */\n\n case 5: /* Replicate(imm8:Zeros(8), 4) */\n\n {\n\n int shift = (cmode_3_1 & 0x1) * 8;\n\n imm = bitfield_replicate(abcdefgh << shift, 16);\n\n break;\n\n }\n\n case 6:\n\n if (cmode_0) {\n\n /* Replicate(Zeros(8):imm8:Ones(16), 2) */\n\n imm = (abcdefgh << 16) | 0xffff;\n\n } else {\n\n /* Replicate(Zeros(16):imm8:Ones(8), 2) */\n\n imm = (abcdefgh << 8) | 0xff;\n\n }\n\n imm = bitfield_replicate(imm, 32);\n\n break;\n\n case 7:\n\n if (!cmode_0 && !is_neg) {\n\n imm = bitfield_replicate(abcdefgh, 8);\n\n } else if (!cmode_0 && is_neg) {\n\n int i;\n\n imm = 0;\n\n for (i = 0; i < 8; i++) {\n\n if ((abcdefgh) & (1 << i)) {\n\n imm |= 0xffULL << (i * 8);\n\n }\n\n }\n\n } else if (cmode_0) {\n\n if (is_neg) {\n\n imm = (abcdefgh & 0x3f) << 48;\n\n if (abcdefgh & 0x80) {\n\n imm |= 0x8000000000000000ULL;\n\n }\n\n if (abcdefgh & 0x40) {\n\n imm |= 0x3fc0000000000000ULL;\n\n } else {\n\n imm |= 0x4000000000000000ULL;\n\n }\n\n } else {\n\n imm = (abcdefgh & 0x3f) << 19;\n\n if (abcdefgh & 0x80) {\n\n imm |= 0x80000000;\n\n }\n\n if (abcdefgh & 0x40) {\n\n imm |= 0x3e000000;\n\n } else {\n\n imm |= 0x40000000;\n\n }\n\n imm |= (imm << 32);\n\n }\n\n }\n\n break;\n\n }\n\n\n\n if (cmode_3_1 != 7 && is_neg) {\n\n imm = ~imm;\n\n }\n\n\n\n tcg_imm = tcg_const_i64(imm);\n\n tcg_rd = new_tmp_a64(s);\n\n\n\n for (i = 0; i < 2; i++) {\n\n int foffs = i ? fp_reg_hi_offset(rd) : fp_reg_offset(rd, MO_64);\n\n\n\n if (i == 1 && !is_q) {\n\n /* non-quad ops clear high half of vector */\n\n tcg_gen_movi_i64(tcg_rd, 0);\n\n } else if ((cmode & 0x9) == 0x1 || (cmode & 0xd) == 0x9) {\n\n tcg_gen_ld_i64(tcg_rd, cpu_env, foffs);\n\n if (is_neg) {\n\n /* AND (BIC) */\n\n tcg_gen_and_i64(tcg_rd, tcg_rd, tcg_imm);\n\n } else {\n\n /* ORR */\n\n tcg_gen_or_i64(tcg_rd, tcg_rd, tcg_imm);\n\n }\n\n } else {\n\n /* MOVI */\n\n tcg_gen_mov_i64(tcg_rd, tcg_imm);\n\n }\n\n tcg_gen_st_i64(tcg_rd, cpu_env, foffs);\n\n }\n\n\n\n tcg_temp_free_i64(tcg_imm);\n\n}\n", + "output": "0", + "index": 15649 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void uhci_frame_timer(void *opaque)\n\n{\n\n UHCIState *s = opaque;\n\n int64_t expire_time;\n\n uint32_t frame_addr, link, old_td_ctrl, val, int_mask;\n\n int cnt, ret;\n\n UHCI_TD td;\n\n UHCI_QH qh;\n\n uint32_t old_async_qh;\n\n\n\n if (!(s->cmd & UHCI_CMD_RS)) {\n\n qemu_del_timer(s->frame_timer);\n\n /* set hchalted bit in status - UHCI11D 2.1.2 */\n\n s->status |= UHCI_STS_HCHALTED;\n\n return;\n\n }\n\n /* Complete the previous frame. */\n\n s->frnum = (s->frnum + 1) & 0x7ff;\n\n if (s->pending_int_mask) {\n\n s->status2 |= s->pending_int_mask;\n\n s->status |= UHCI_STS_USBINT;\n\n uhci_update_irq(s);\n\n }\n\n old_async_qh = s->async_qh;\n\n frame_addr = s->fl_base_addr + ((s->frnum & 0x3ff) << 2);\n\n cpu_physical_memory_read(frame_addr, (uint8_t *)&link, 4);\n\n le32_to_cpus(&link);\n\n int_mask = 0;\n\n cnt = FRAME_MAX_LOOPS;\n\n while ((link & 1) == 0) {\n\n if (--cnt == 0)\n\n break;\n\n /* valid frame */\n\n if (link & 2) {\n\n /* QH */\n\n if (link == s->async_qh) {\n\n /* We've found a previously issues packet.\n\n Nothing else to do. */\n\n old_async_qh = 0;\n\n break;\n\n }\n\n cpu_physical_memory_read(link & ~0xf, (uint8_t *)&qh, sizeof(qh));\n\n le32_to_cpus(&qh.link);\n\n le32_to_cpus(&qh.el_link);\n\n depth_first:\n\n if (qh.el_link & 1) {\n\n /* no element : go to next entry */\n\n link = qh.link;\n\n } else if (qh.el_link & 2) {\n\n /* QH */\n\n link = qh.el_link;\n\n } else if (s->async_qh) {\n\n /* We can only cope with one pending packet. Keep looking\n\n for the previously issued packet. */\n\n link = qh.link;\n\n } else {\n\n /* TD */\n\n if (--cnt == 0)\n\n break;\n\n cpu_physical_memory_read(qh.el_link & ~0xf,\n\n (uint8_t *)&td, sizeof(td));\n\n le32_to_cpus(&td.link);\n\n le32_to_cpus(&td.ctrl);\n\n le32_to_cpus(&td.token);\n\n le32_to_cpus(&td.buffer);\n\n old_td_ctrl = td.ctrl;\n\n ret = uhci_handle_td(s, &td, &int_mask, 0);\n\n\n\n /* update the status bits of the TD */\n\n if (old_td_ctrl != td.ctrl) {\n\n val = cpu_to_le32(td.ctrl);\n\n cpu_physical_memory_write((qh.el_link & ~0xf) + 4,\n\n (const uint8_t *)&val,\n\n sizeof(val));\n\n }\n\n if (ret < 0)\n\n break; /* interrupted frame */\n\n if (ret == 2) {\n\n s->async_qh = link;\n\n } else if (ret == 0) {\n\n /* update qh element link */\n\n qh.el_link = td.link;\n\n val = cpu_to_le32(qh.el_link);\n\n cpu_physical_memory_write((link & ~0xf) + 4,\n\n (const uint8_t *)&val,\n\n sizeof(val));\n\n if (qh.el_link & 4) {\n\n /* depth first */\n\n goto depth_first;\n\n }\n\n }\n\n /* go to next entry */\n\n link = qh.link;\n\n }\n\n } else {\n\n /* TD */\n\n cpu_physical_memory_read(link & ~0xf, (uint8_t *)&td, sizeof(td));\n\n le32_to_cpus(&td.link);\n\n le32_to_cpus(&td.ctrl);\n\n le32_to_cpus(&td.token);\n\n le32_to_cpus(&td.buffer);\n\n\n\n /* Handle isochonous transfer. */\n\n /* FIXME: might be more than one isoc in frame */\n\n old_td_ctrl = td.ctrl;\n\n ret = uhci_handle_td(s, &td, &int_mask, 0);\n\n\n\n /* update the status bits of the TD */\n\n if (old_td_ctrl != td.ctrl) {\n\n val = cpu_to_le32(td.ctrl);\n\n cpu_physical_memory_write((link & ~0xf) + 4,\n\n (const uint8_t *)&val,\n\n sizeof(val));\n\n }\n\n if (ret < 0)\n\n break; /* interrupted frame */\n\n if (ret == 2) {\n\n s->async_frame_addr = frame_addr;\n\n }\n\n link = td.link;\n\n }\n\n }\n\n s->pending_int_mask = int_mask;\n\n if (old_async_qh) {\n\n /* A previously started transfer has disappeared from the transfer\n\n list. There's nothing useful we can do with it now, so just\n\n discard the packet and hope it wasn't too important. */\n\n#ifdef DEBUG\n\n printf(\"Discarding USB packet\\n\");\n\n#endif\n\n usb_cancel_packet(&s->usb_packet);\n\n s->async_qh = 0;\n\n }\n\n\n\n /* prepare the timer for the next frame */\n\n expire_time = qemu_get_clock(vm_clock) +\n\n (ticks_per_sec / FRAME_TIMER_FREQ);\n\n qemu_mod_timer(s->frame_timer, expire_time);\n\n}\n", + "output": "0", + "index": 18683 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int init_poc(H264Context *h){\n\n MpegEncContext * const s = &h->s;\n\n const int max_frame_num= 1<sps.log2_max_frame_num;\n\n int field_poc[2];\n\n\n\n if(h->nal_unit_type == NAL_IDR_SLICE){\n\n h->frame_num_offset= 0;\n\n }else{\n\n if(h->frame_num < h->prev_frame_num)\n\n h->frame_num_offset= h->prev_frame_num_offset + max_frame_num;\n\n else\n\n h->frame_num_offset= h->prev_frame_num_offset;\n\n }\n\n\n\n if(h->sps.poc_type==0){\n\n const int max_poc_lsb= 1<sps.log2_max_poc_lsb;\n\n\n\n if(h->nal_unit_type == NAL_IDR_SLICE){\n\n h->prev_poc_msb=\n\n h->prev_poc_lsb= 0;\n\n }\n\n\n\n if (h->poc_lsb < h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb >= max_poc_lsb/2)\n\n h->poc_msb = h->prev_poc_msb + max_poc_lsb;\n\n else if(h->poc_lsb > h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb < -max_poc_lsb/2)\n\n h->poc_msb = h->prev_poc_msb - max_poc_lsb;\n\n else\n\n h->poc_msb = h->prev_poc_msb;\n\n//printf(\"poc: %d %d\\n\", h->poc_msb, h->poc_lsb);\n\n field_poc[0] =\n\n field_poc[1] = h->poc_msb + h->poc_lsb;\n\n if(s->picture_structure == PICT_FRAME)\n\n field_poc[1] += h->delta_poc_bottom;\n\n }else if(h->sps.poc_type==1){\n\n int abs_frame_num, expected_delta_per_poc_cycle, expectedpoc;\n\n int i;\n\n\n\n if(h->sps.poc_cycle_length != 0)\n\n abs_frame_num = h->frame_num_offset + h->frame_num;\n\n else\n\n abs_frame_num = 0;\n\n\n\n if(h->nal_ref_idc==0 && abs_frame_num > 0)\n\n abs_frame_num--;\n\n\n\n expected_delta_per_poc_cycle = 0;\n\n for(i=0; i < h->sps.poc_cycle_length; i++)\n\n expected_delta_per_poc_cycle += h->sps.offset_for_ref_frame[ i ]; //FIXME integrate during sps parse\n\n\n\n if(abs_frame_num > 0){\n\n int poc_cycle_cnt = (abs_frame_num - 1) / h->sps.poc_cycle_length;\n\n int frame_num_in_poc_cycle = (abs_frame_num - 1) % h->sps.poc_cycle_length;\n\n\n\n expectedpoc = poc_cycle_cnt * expected_delta_per_poc_cycle;\n\n for(i = 0; i <= frame_num_in_poc_cycle; i++)\n\n expectedpoc = expectedpoc + h->sps.offset_for_ref_frame[ i ];\n\n } else\n\n expectedpoc = 0;\n\n\n\n if(h->nal_ref_idc == 0)\n\n expectedpoc = expectedpoc + h->sps.offset_for_non_ref_pic;\n\n\n\n field_poc[0] = expectedpoc + h->delta_poc[0];\n\n field_poc[1] = field_poc[0] + h->sps.offset_for_top_to_bottom_field;\n\n\n\n if(s->picture_structure == PICT_FRAME)\n\n field_poc[1] += h->delta_poc[1];\n\n }else{\n\n int poc;\n\n if(h->nal_unit_type == NAL_IDR_SLICE){\n\n poc= 0;\n\n }else{\n\n if(h->nal_ref_idc) poc= 2*(h->frame_num_offset + h->frame_num);\n\n else poc= 2*(h->frame_num_offset + h->frame_num) - 1;\n\n }\n\n field_poc[0]= poc;\n\n field_poc[1]= poc;\n\n }\n\n\n\n if(s->picture_structure != PICT_BOTTOM_FIELD)\n\n s->current_picture_ptr->field_poc[0]= field_poc[0];\n\n if(s->picture_structure != PICT_TOP_FIELD)\n\n s->current_picture_ptr->field_poc[1]= field_poc[1];\n\n if(s->picture_structure == PICT_FRAME) // FIXME field pix?\n\n s->current_picture_ptr->poc= FFMIN(field_poc[0], field_poc[1]);\n\n\n\n return 0;\n\n}\n", + "output": "0", + "index": 5265 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int tm2_read_stream(TM2Context *ctx, const uint8_t *buf, int stream_id, int buf_size)\n\n{\n\n int i;\n\n int skip = 0;\n\n int len, toks, pos;\n\n TM2Codes codes;\n\n GetByteContext gb;\n\n\n\n if (buf_size < 4) {\n\n av_log(ctx->avctx, AV_LOG_ERROR, \"not enough space for len left\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n /* get stream length in dwords */\n\n bytestream2_init(&gb, buf, buf_size);\n\n len = bytestream2_get_be32(&gb);\n\n skip = len * 4 + 4;\n\n\n\n if(len == 0)\n\n return 4;\n\n\n\n if (len >= INT_MAX/4-1 || len < 0 || skip > buf_size) {\n\n av_log(ctx->avctx, AV_LOG_ERROR, \"invalid stream size\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n toks = bytestream2_get_be32(&gb);\n\n if(toks & 1) {\n\n len = bytestream2_get_be32(&gb);\n\n if(len == TM2_ESCAPE) {\n\n len = bytestream2_get_be32(&gb);\n\n }\n\n if(len > 0) {\n\n pos = bytestream2_tell(&gb);\n\n if (skip <= pos)\n\n return AVERROR_INVALIDDATA;\n\n init_get_bits(&ctx->gb, buf + pos, (skip - pos) * 8);\n\n if(tm2_read_deltas(ctx, stream_id) == -1)\n\n return AVERROR_INVALIDDATA;\n\n bytestream2_skip(&gb, ((get_bits_count(&ctx->gb) + 31) >> 5) << 2);\n\n }\n\n }\n\n /* skip unused fields */\n\n len = bytestream2_get_be32(&gb);\n\n if(len == TM2_ESCAPE) { /* some unknown length - could be escaped too */\n\n bytestream2_skip(&gb, 8); /* unused by decoder */\n\n } else {\n\n bytestream2_skip(&gb, 4); /* unused by decoder */\n\n }\n\n\n\n pos = bytestream2_tell(&gb);\n\n if (skip <= pos)\n\n return AVERROR_INVALIDDATA;\n\n init_get_bits(&ctx->gb, buf + pos, (skip - pos) * 8);\n\n if(tm2_build_huff_table(ctx, &codes) == -1)\n\n return AVERROR_INVALIDDATA;\n\n bytestream2_skip(&gb, ((get_bits_count(&ctx->gb) + 31) >> 5) << 2);\n\n\n\n toks >>= 1;\n\n /* check if we have sane number of tokens */\n\n if((toks < 0) || (toks > 0xFFFFFF)){\n\n av_log(ctx->avctx, AV_LOG_ERROR, \"Incorrect number of tokens: %i\\n\", toks);\n\n tm2_free_codes(&codes);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n ctx->tokens[stream_id] = av_realloc(ctx->tokens[stream_id], toks * sizeof(int));\n\n ctx->tok_lens[stream_id] = toks;\n\n len = bytestream2_get_be32(&gb);\n\n if(len > 0) {\n\n pos = bytestream2_tell(&gb);\n\n if (skip <= pos)\n\n return AVERROR_INVALIDDATA;\n\n init_get_bits(&ctx->gb, buf + pos, (skip - pos) * 8);\n\n for(i = 0; i < toks; i++) {\n\n if (get_bits_left(&ctx->gb) <= 0) {\n\n av_log(ctx->avctx, AV_LOG_ERROR, \"Incorrect number of tokens: %i\\n\", toks);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n ctx->tokens[stream_id][i] = tm2_get_token(&ctx->gb, &codes);\n\n if (stream_id <= TM2_MOT && ctx->tokens[stream_id][i] >= TM2_DELTAS) {\n\n av_log(ctx->avctx, AV_LOG_ERROR, \"Invalid delta token index %d for type %d, n=%d\\n\",\n\n ctx->tokens[stream_id][i], stream_id, i);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n }\n\n } else {\n\n for(i = 0; i < toks; i++) {\n\n ctx->tokens[stream_id][i] = codes.recode[0];\n\n if (stream_id <= TM2_MOT && ctx->tokens[stream_id][i] >= TM2_DELTAS) {\n\n av_log(ctx->avctx, AV_LOG_ERROR, \"Invalid delta token index %d for type %d, n=%d\\n\",\n\n ctx->tokens[stream_id][i], stream_id, i);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n }\n\n }\n\n tm2_free_codes(&codes);\n\n\n\n return skip;\n\n}\n", + "output": "0", + "index": 22820 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static inline void RENAME(bgr24ToY)(uint8_t *dst, uint8_t *src, long width)\n\n{\n\n#ifdef HAVE_MMX\n\n\tasm volatile(\n\n\t\t\"mov %2, %%\"REG_a\"\t\t\\n\\t\"\n\n\t\t\"movq \"MANGLE(bgr2YCoeff)\", %%mm6\t\t\\n\\t\"\n\n\t\t\"movq \"MANGLE(w1111)\", %%mm5\t\t\\n\\t\"\n\n\t\t\"pxor %%mm7, %%mm7\t\t\\n\\t\"\n\n\t\t\"lea (%%\"REG_a\", %%\"REG_a\", 2), %%\"REG_b\"\\n\\t\"\n\n\t\tASMALIGN16\n\n\t\t\"1:\t\t\t\t\\n\\t\"\n\n\t\tPREFETCH\" 64(%0, %%\"REG_b\")\t\\n\\t\"\n\n\t\t\"movd (%0, %%\"REG_b\"), %%mm0\t\\n\\t\"\n\n\t\t\"movd 3(%0, %%\"REG_b\"), %%mm1\t\\n\\t\"\n\n\t\t\"punpcklbw %%mm7, %%mm0\t\t\\n\\t\"\n\n\t\t\"punpcklbw %%mm7, %%mm1\t\t\\n\\t\"\n\n\t\t\"movd 6(%0, %%\"REG_b\"), %%mm2\t\\n\\t\"\n\n\t\t\"movd 9(%0, %%\"REG_b\"), %%mm3\t\\n\\t\"\n\n\t\t\"punpcklbw %%mm7, %%mm2\t\t\\n\\t\"\n\n\t\t\"punpcklbw %%mm7, %%mm3\t\t\\n\\t\"\n\n\t\t\"pmaddwd %%mm6, %%mm0\t\t\\n\\t\"\n\n\t\t\"pmaddwd %%mm6, %%mm1\t\t\\n\\t\"\n\n\t\t\"pmaddwd %%mm6, %%mm2\t\t\\n\\t\"\n\n\t\t\"pmaddwd %%mm6, %%mm3\t\t\\n\\t\"\n\n#ifndef FAST_BGR2YV12\n\n\t\t\"psrad $8, %%mm0\t\t\\n\\t\"\n\n\t\t\"psrad $8, %%mm1\t\t\\n\\t\"\n\n\t\t\"psrad $8, %%mm2\t\t\\n\\t\"\n\n\t\t\"psrad $8, %%mm3\t\t\\n\\t\"\n\n#endif\n\n\t\t\"packssdw %%mm1, %%mm0\t\t\\n\\t\"\n\n\t\t\"packssdw %%mm3, %%mm2\t\t\\n\\t\"\n\n\t\t\"pmaddwd %%mm5, %%mm0\t\t\\n\\t\"\n\n\t\t\"pmaddwd %%mm5, %%mm2\t\t\\n\\t\"\n\n\t\t\"packssdw %%mm2, %%mm0\t\t\\n\\t\"\n\n\t\t\"psraw $7, %%mm0\t\t\\n\\t\"\n\n\n\n\t\t\"movd 12(%0, %%\"REG_b\"), %%mm4\t\\n\\t\"\n\n\t\t\"movd 15(%0, %%\"REG_b\"), %%mm1\t\\n\\t\"\n\n\t\t\"punpcklbw %%mm7, %%mm4\t\t\\n\\t\"\n\n\t\t\"punpcklbw %%mm7, %%mm1\t\t\\n\\t\"\n\n\t\t\"movd 18(%0, %%\"REG_b\"), %%mm2\t\\n\\t\"\n\n\t\t\"movd 21(%0, %%\"REG_b\"), %%mm3\t\\n\\t\"\n\n\t\t\"punpcklbw %%mm7, %%mm2\t\t\\n\\t\"\n\n\t\t\"punpcklbw %%mm7, %%mm3\t\t\\n\\t\"\n\n\t\t\"pmaddwd %%mm6, %%mm4\t\t\\n\\t\"\n\n\t\t\"pmaddwd %%mm6, %%mm1\t\t\\n\\t\"\n\n\t\t\"pmaddwd %%mm6, %%mm2\t\t\\n\\t\"\n\n\t\t\"pmaddwd %%mm6, %%mm3\t\t\\n\\t\"\n\n#ifndef FAST_BGR2YV12\n\n\t\t\"psrad $8, %%mm4\t\t\\n\\t\"\n\n\t\t\"psrad $8, %%mm1\t\t\\n\\t\"\n\n\t\t\"psrad $8, %%mm2\t\t\\n\\t\"\n\n\t\t\"psrad $8, %%mm3\t\t\\n\\t\"\n\n#endif\n\n\t\t\"packssdw %%mm1, %%mm4\t\t\\n\\t\"\n\n\t\t\"packssdw %%mm3, %%mm2\t\t\\n\\t\"\n\n\t\t\"pmaddwd %%mm5, %%mm4\t\t\\n\\t\"\n\n\t\t\"pmaddwd %%mm5, %%mm2\t\t\\n\\t\"\n\n\t\t\"add $24, %%\"REG_b\"\t\t\\n\\t\"\n\n\t\t\"packssdw %%mm2, %%mm4\t\t\\n\\t\"\n\n\t\t\"psraw $7, %%mm4\t\t\\n\\t\"\n\n\n\n\t\t\"packuswb %%mm4, %%mm0\t\t\\n\\t\"\n\n\t\t\"paddusb \"MANGLE(bgr2YOffset)\", %%mm0\t\\n\\t\"\n\n\n\n\t\t\"movq %%mm0, (%1, %%\"REG_a\")\t\\n\\t\"\n\n\t\t\"add $8, %%\"REG_a\"\t\t\\n\\t\"\n\n\t\t\" js 1b\t\t\t\t\\n\\t\"\n\n\t\t: : \"r\" (src+width*3), \"r\" (dst+width), \"g\" (-width)\n\n\t\t: \"%\"REG_a, \"%\"REG_b\n\n\t);\n\n#else\n\n\tint i;\n\n\tfor(i=0; i>RGB2YUV_SHIFT);\n\n\t}\n\n#endif\n\n}\n", + "output": "0", + "index": 11441 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int make_completely_empty(BlockDriverState *bs)\n\n{\n\n BDRVQcow2State *s = bs->opaque;\n\n int ret, l1_clusters;\n\n int64_t offset;\n\n uint64_t *new_reftable = NULL;\n\n uint64_t rt_entry, l1_size2;\n\n struct {\n\n uint64_t l1_offset;\n\n uint64_t reftable_offset;\n\n uint32_t reftable_clusters;\n\n } QEMU_PACKED l1_ofs_rt_ofs_cls;\n\n\n\n ret = qcow2_cache_empty(bs, s->l2_table_cache);\n\n if (ret < 0) {\n\n goto fail;\n\n }\n\n\n\n ret = qcow2_cache_empty(bs, s->refcount_block_cache);\n\n if (ret < 0) {\n\n goto fail;\n\n }\n\n\n\n /* Refcounts will be broken utterly */\n\n ret = qcow2_mark_dirty(bs);\n\n if (ret < 0) {\n\n goto fail;\n\n }\n\n\n\n BLKDBG_EVENT(bs->file, BLKDBG_L1_UPDATE);\n\n\n\n l1_clusters = DIV_ROUND_UP(s->l1_size, s->cluster_size / sizeof(uint64_t));\n\n l1_size2 = (uint64_t)s->l1_size * sizeof(uint64_t);\n\n\n\n /* After this call, neither the in-memory nor the on-disk refcount\n\n * information accurately describe the actual references */\n\n\n\n ret = bdrv_pwrite_zeroes(bs->file, s->l1_table_offset,\n\n l1_clusters * s->cluster_size, 0);\n\n if (ret < 0) {\n\n goto fail_broken_refcounts;\n\n }\n\n memset(s->l1_table, 0, l1_size2);\n\n\n\n BLKDBG_EVENT(bs->file, BLKDBG_EMPTY_IMAGE_PREPARE);\n\n\n\n /* Overwrite enough clusters at the beginning of the sectors to place\n\n * the refcount table, a refcount block and the L1 table in; this may\n\n * overwrite parts of the existing refcount and L1 table, which is not\n\n * an issue because the dirty flag is set, complete data loss is in fact\n\n * desired and partial data loss is consequently fine as well */\n\n ret = bdrv_pwrite_zeroes(bs->file, s->cluster_size,\n\n (2 + l1_clusters) * s->cluster_size, 0);\n\n /* This call (even if it failed overall) may have overwritten on-disk\n\n * refcount structures; in that case, the in-memory refcount information\n\n * will probably differ from the on-disk information which makes the BDS\n\n * unusable */\n\n if (ret < 0) {\n\n goto fail_broken_refcounts;\n\n }\n\n\n\n BLKDBG_EVENT(bs->file, BLKDBG_L1_UPDATE);\n\n BLKDBG_EVENT(bs->file, BLKDBG_REFTABLE_UPDATE);\n\n\n\n /* \"Create\" an empty reftable (one cluster) directly after the image\n\n * header and an empty L1 table three clusters after the image header;\n\n * the cluster between those two will be used as the first refblock */\n\n l1_ofs_rt_ofs_cls.l1_offset = cpu_to_be64(3 * s->cluster_size);\n\n l1_ofs_rt_ofs_cls.reftable_offset = cpu_to_be64(s->cluster_size);\n\n l1_ofs_rt_ofs_cls.reftable_clusters = cpu_to_be32(1);\n\n ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, l1_table_offset),\n\n &l1_ofs_rt_ofs_cls, sizeof(l1_ofs_rt_ofs_cls));\n\n if (ret < 0) {\n\n goto fail_broken_refcounts;\n\n }\n\n\n\n s->l1_table_offset = 3 * s->cluster_size;\n\n\n\n new_reftable = g_try_new0(uint64_t, s->cluster_size / sizeof(uint64_t));\n\n if (!new_reftable) {\n\n ret = -ENOMEM;\n\n goto fail_broken_refcounts;\n\n }\n\n\n\n s->refcount_table_offset = s->cluster_size;\n\n s->refcount_table_size = s->cluster_size / sizeof(uint64_t);\n\n\n\n\n g_free(s->refcount_table);\n\n s->refcount_table = new_reftable;\n\n new_reftable = NULL;\n\n\n\n /* Now the in-memory refcount information again corresponds to the on-disk\n\n * information (reftable is empty and no refblocks (the refblock cache is\n\n * empty)); however, this means some clusters (e.g. the image header) are\n\n * referenced, but not refcounted, but the normal qcow2 code assumes that\n\n * the in-memory information is always correct */\n\n\n\n BLKDBG_EVENT(bs->file, BLKDBG_REFBLOCK_ALLOC);\n\n\n\n /* Enter the first refblock into the reftable */\n\n rt_entry = cpu_to_be64(2 * s->cluster_size);\n\n ret = bdrv_pwrite_sync(bs->file, s->cluster_size,\n\n &rt_entry, sizeof(rt_entry));\n\n if (ret < 0) {\n\n goto fail_broken_refcounts;\n\n }\n\n s->refcount_table[0] = 2 * s->cluster_size;\n\n\n\n s->free_cluster_index = 0;\n\n assert(3 + l1_clusters <= s->refcount_block_size);\n\n offset = qcow2_alloc_clusters(bs, 3 * s->cluster_size + l1_size2);\n\n if (offset < 0) {\n\n ret = offset;\n\n goto fail_broken_refcounts;\n\n } else if (offset > 0) {\n\n error_report(\"First cluster in emptied image is in use\");\n\n abort();\n\n }\n\n\n\n /* Now finally the in-memory information corresponds to the on-disk\n\n * structures and is correct */\n\n ret = qcow2_mark_clean(bs);\n\n if (ret < 0) {\n\n goto fail;\n\n }\n\n\n\n ret = bdrv_truncate(bs->file->bs, (3 + l1_clusters) * s->cluster_size);\n\n if (ret < 0) {\n\n goto fail;\n\n }\n\n\n\n return 0;\n\n\n\nfail_broken_refcounts:\n\n /* The BDS is unusable at this point. If we wanted to make it usable, we\n\n * would have to call qcow2_refcount_close(), qcow2_refcount_init(),\n\n * qcow2_check_refcounts(), qcow2_refcount_close() and qcow2_refcount_init()\n\n * again. However, because the functions which could have caused this error\n\n * path to be taken are used by those functions as well, it's very likely\n\n * that that sequence will fail as well. Therefore, just eject the BDS. */\n\n bs->drv = NULL;\n\n\n\nfail:\n\n g_free(new_reftable);\n\n return ret;\n\n}", + "output": "1", + "index": 15390 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int ff_hevc_decode_nal_pps(GetBitContext *gb, AVCodecContext *avctx,\n\n HEVCParamSets *ps)\n\n{\n\n HEVCSPS *sps = NULL;\n\n int i, ret = 0;\n\n unsigned int pps_id = 0;\n\n ptrdiff_t nal_size;\n\n\n\n AVBufferRef *pps_buf;\n\n HEVCPPS *pps = av_mallocz(sizeof(*pps));\n\n\n\n if (!pps)\n\n return AVERROR(ENOMEM);\n\n\n\n pps_buf = av_buffer_create((uint8_t *)pps, sizeof(*pps),\n\n hevc_pps_free, NULL, 0);\n\n if (!pps_buf) {\n\n av_freep(&pps);\n\n return AVERROR(ENOMEM);\n\n }\n\n\n\n av_log(avctx, AV_LOG_DEBUG, \"Decoding PPS\\n\");\n\n\n\n nal_size = gb->buffer_end - gb->buffer;\n\n if (nal_size > sizeof(pps->data)) {\n\n av_log(avctx, AV_LOG_WARNING, \"Truncating likely oversized PPS \"\n\n \"(%\"PTRDIFF_SPECIFIER\" > %\"SIZE_SPECIFIER\")\\n\",\n\n nal_size, sizeof(pps->data));\n\n pps->data_size = sizeof(pps->data);\n\n } else {\n\n pps->data_size = nal_size;\n\n }\n\n memcpy(pps->data, gb->buffer, pps->data_size);\n\n\n\n // Default values\n\n pps->loop_filter_across_tiles_enabled_flag = 1;\n\n pps->num_tile_columns = 1;\n\n pps->num_tile_rows = 1;\n\n pps->uniform_spacing_flag = 1;\n\n pps->disable_dbf = 0;\n\n pps->beta_offset = 0;\n\n pps->tc_offset = 0;\n\n pps->log2_max_transform_skip_block_size = 2;\n\n\n\n // Coded parameters\n\n pps_id = get_ue_golomb_long(gb);\n\n if (pps_id >= HEVC_MAX_PPS_COUNT) {\n\n av_log(avctx, AV_LOG_ERROR, \"PPS id out of range: %d\\n\", pps_id);\n\n ret = AVERROR_INVALIDDATA;\n\n goto err;\n\n }\n\n pps->sps_id = get_ue_golomb_long(gb);\n\n if (pps->sps_id >= HEVC_MAX_SPS_COUNT) {\n\n av_log(avctx, AV_LOG_ERROR, \"SPS id out of range: %d\\n\", pps->sps_id);\n\n ret = AVERROR_INVALIDDATA;\n\n goto err;\n\n }\n\n if (!ps->sps_list[pps->sps_id]) {\n\n av_log(avctx, AV_LOG_ERROR, \"SPS %u does not exist.\\n\", pps->sps_id);\n\n ret = AVERROR_INVALIDDATA;\n\n goto err;\n\n }\n\n sps = (HEVCSPS *)ps->sps_list[pps->sps_id]->data;\n\n\n\n pps->dependent_slice_segments_enabled_flag = get_bits1(gb);\n\n pps->output_flag_present_flag = get_bits1(gb);\n\n pps->num_extra_slice_header_bits = get_bits(gb, 3);\n\n\n\n pps->sign_data_hiding_flag = get_bits1(gb);\n\n\n\n pps->cabac_init_present_flag = get_bits1(gb);\n\n\n\n pps->num_ref_idx_l0_default_active = get_ue_golomb_long(gb) + 1;\n\n pps->num_ref_idx_l1_default_active = get_ue_golomb_long(gb) + 1;\n\n\n\n pps->pic_init_qp_minus26 = get_se_golomb(gb);\n\n\n\n pps->constrained_intra_pred_flag = get_bits1(gb);\n\n pps->transform_skip_enabled_flag = get_bits1(gb);\n\n\n\n pps->cu_qp_delta_enabled_flag = get_bits1(gb);\n\n pps->diff_cu_qp_delta_depth = 0;\n\n if (pps->cu_qp_delta_enabled_flag)\n\n pps->diff_cu_qp_delta_depth = get_ue_golomb_long(gb);\n\n\n\n if (pps->diff_cu_qp_delta_depth < 0 ||\n\n pps->diff_cu_qp_delta_depth > sps->log2_diff_max_min_coding_block_size) {\n\n av_log(avctx, AV_LOG_ERROR, \"diff_cu_qp_delta_depth %d is invalid\\n\",\n\n pps->diff_cu_qp_delta_depth);\n\n ret = AVERROR_INVALIDDATA;\n\n goto err;\n\n }\n\n\n\n pps->cb_qp_offset = get_se_golomb(gb);\n\n if (pps->cb_qp_offset < -12 || pps->cb_qp_offset > 12) {\n\n av_log(avctx, AV_LOG_ERROR, \"pps_cb_qp_offset out of range: %d\\n\",\n\n pps->cb_qp_offset);\n\n ret = AVERROR_INVALIDDATA;\n\n goto err;\n\n }\n\n pps->cr_qp_offset = get_se_golomb(gb);\n\n if (pps->cr_qp_offset < -12 || pps->cr_qp_offset > 12) {\n\n av_log(avctx, AV_LOG_ERROR, \"pps_cr_qp_offset out of range: %d\\n\",\n\n pps->cr_qp_offset);\n\n ret = AVERROR_INVALIDDATA;\n\n goto err;\n\n }\n\n pps->pic_slice_level_chroma_qp_offsets_present_flag = get_bits1(gb);\n\n\n\n pps->weighted_pred_flag = get_bits1(gb);\n\n pps->weighted_bipred_flag = get_bits1(gb);\n\n\n\n pps->transquant_bypass_enable_flag = get_bits1(gb);\n\n pps->tiles_enabled_flag = get_bits1(gb);\n\n pps->entropy_coding_sync_enabled_flag = get_bits1(gb);\n\n\n\n if (pps->tiles_enabled_flag) {\n\n pps->num_tile_columns = get_ue_golomb_long(gb) + 1;\n\n pps->num_tile_rows = get_ue_golomb_long(gb) + 1;\n\n if (pps->num_tile_columns <= 0 ||\n\n pps->num_tile_columns >= sps->width) {\n\n av_log(avctx, AV_LOG_ERROR, \"num_tile_columns_minus1 out of range: %d\\n\",\n\n pps->num_tile_columns - 1);\n\n ret = AVERROR_INVALIDDATA;\n\n goto err;\n\n }\n\n if (pps->num_tile_rows <= 0 ||\n\n pps->num_tile_rows >= sps->height) {\n\n av_log(avctx, AV_LOG_ERROR, \"num_tile_rows_minus1 out of range: %d\\n\",\n\n pps->num_tile_rows - 1);\n\n ret = AVERROR_INVALIDDATA;\n\n goto err;\n\n }\n\n\n\n pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));\n\n pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));\n\n if (!pps->column_width || !pps->row_height) {\n\n ret = AVERROR(ENOMEM);\n\n goto err;\n\n }\n\n\n\n pps->uniform_spacing_flag = get_bits1(gb);\n\n if (!pps->uniform_spacing_flag) {\n\n uint64_t sum = 0;\n\n for (i = 0; i < pps->num_tile_columns - 1; i++) {\n\n pps->column_width[i] = get_ue_golomb_long(gb) + 1;\n\n sum += pps->column_width[i];\n\n }\n\n if (sum >= sps->ctb_width) {\n\n av_log(avctx, AV_LOG_ERROR, \"Invalid tile widths.\\n\");\n\n ret = AVERROR_INVALIDDATA;\n\n goto err;\n\n }\n\n pps->column_width[pps->num_tile_columns - 1] = sps->ctb_width - sum;\n\n\n\n sum = 0;\n\n for (i = 0; i < pps->num_tile_rows - 1; i++) {\n\n pps->row_height[i] = get_ue_golomb_long(gb) + 1;\n\n sum += pps->row_height[i];\n\n }\n\n if (sum >= sps->ctb_height) {\n\n av_log(avctx, AV_LOG_ERROR, \"Invalid tile heights.\\n\");\n\n ret = AVERROR_INVALIDDATA;\n\n goto err;\n\n }\n\n pps->row_height[pps->num_tile_rows - 1] = sps->ctb_height - sum;\n\n }\n\n pps->loop_filter_across_tiles_enabled_flag = get_bits1(gb);\n\n }\n\n\n\n pps->seq_loop_filter_across_slices_enabled_flag = get_bits1(gb);\n\n\n\n pps->deblocking_filter_control_present_flag = get_bits1(gb);\n\n if (pps->deblocking_filter_control_present_flag) {\n\n pps->deblocking_filter_override_enabled_flag = get_bits1(gb);\n\n pps->disable_dbf = get_bits1(gb);\n\n if (!pps->disable_dbf) {\n\n int beta_offset_div2 = get_se_golomb(gb);\n\n int tc_offset_div2 = get_se_golomb(gb) ;\n\n if (beta_offset_div2 < -6 || beta_offset_div2 > 6) {\n\n av_log(avctx, AV_LOG_ERROR, \"pps_beta_offset_div2 out of range: %d\\n\",\n\n beta_offset_div2);\n\n ret = AVERROR_INVALIDDATA;\n\n goto err;\n\n }\n\n if (tc_offset_div2 < -6 || tc_offset_div2 > 6) {\n\n av_log(avctx, AV_LOG_ERROR, \"pps_tc_offset_div2 out of range: %d\\n\",\n\n tc_offset_div2);\n\n ret = AVERROR_INVALIDDATA;\n\n goto err;\n\n }\n\n pps->beta_offset = 2 * beta_offset_div2;\n\n pps->tc_offset = 2 * tc_offset_div2;\n\n }\n\n }\n\n\n\n pps->scaling_list_data_present_flag = get_bits1(gb);\n\n if (pps->scaling_list_data_present_flag) {\n\n set_default_scaling_list_data(&pps->scaling_list);\n\n ret = scaling_list_data(gb, avctx, &pps->scaling_list, sps);\n\n if (ret < 0)\n\n goto err;\n\n }\n\n pps->lists_modification_present_flag = get_bits1(gb);\n\n pps->log2_parallel_merge_level = get_ue_golomb_long(gb) + 2;\n\n if (pps->log2_parallel_merge_level > sps->log2_ctb_size) {\n\n av_log(avctx, AV_LOG_ERROR, \"log2_parallel_merge_level_minus2 out of range: %d\\n\",\n\n pps->log2_parallel_merge_level - 2);\n\n ret = AVERROR_INVALIDDATA;\n\n goto err;\n\n }\n\n\n\n pps->slice_header_extension_present_flag = get_bits1(gb);\n\n\n\n if (get_bits1(gb)) { // pps_extension_present_flag\n\n int pps_range_extensions_flag = get_bits1(gb);\n\n /* int pps_extension_7bits = */ get_bits(gb, 7);\n\n if (sps->ptl.general_ptl.profile_idc == FF_PROFILE_HEVC_REXT && pps_range_extensions_flag) {\n\n if ((ret = pps_range_extensions(gb, avctx, pps, sps)) < 0)\n\n goto err;\n\n }\n\n }\n\n\n\n ret = setup_pps(avctx, gb, pps, sps);\n\n if (ret < 0)\n\n goto err;\n\n\n\n if (get_bits_left(gb) < 0) {\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"Overread PPS by %d bits\\n\", -get_bits_left(gb));\n\n goto err;\n\n }\n\n\n\n remove_pps(ps, pps_id);\n\n ps->pps_list[pps_id] = pps_buf;\n\n\n\n return 0;\n\n\n\nerr:\n\n av_buffer_unref(&pps_buf);\n\n return ret;\n\n}\n", + "output": "1", + "index": 7151 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void vga_draw_text(VGAState *s, int full_update)\n\n{\n\n int cx, cy, cheight, cw, ch, cattr, height, width, ch_attr;\n\n int cx_min, cx_max, linesize, x_incr;\n\n uint32_t offset, fgcol, bgcol, v, cursor_offset;\n\n uint8_t *d1, *d, *src, *s1, *dest, *cursor_ptr;\n\n const uint8_t *font_ptr, *font_base[2];\n\n int dup9, line_offset, depth_index;\n\n uint32_t *palette;\n\n uint32_t *ch_attr_ptr;\n\n vga_draw_glyph8_func *vga_draw_glyph8;\n\n vga_draw_glyph9_func *vga_draw_glyph9;\n\n\n\n vga_dirty_log_stop(s);\n\n\n\n /* compute font data address (in plane 2) */\n\n v = s->sr[3];\n\n offset = (((v >> 4) & 1) | ((v << 1) & 6)) * 8192 * 4 + 2;\n\n if (offset != s->font_offsets[0]) {\n\n s->font_offsets[0] = offset;\n\n full_update = 1;\n\n }\n\n font_base[0] = s->vram_ptr + offset;\n\n\n\n offset = (((v >> 5) & 1) | ((v >> 1) & 6)) * 8192 * 4 + 2;\n\n font_base[1] = s->vram_ptr + offset;\n\n if (offset != s->font_offsets[1]) {\n\n s->font_offsets[1] = offset;\n\n full_update = 1;\n\n }\n\n if (s->plane_updated & (1 << 2)) {\n\n /* if the plane 2 was modified since the last display, it\n\n indicates the font may have been modified */\n\n s->plane_updated = 0;\n\n full_update = 1;\n\n }\n\n full_update |= update_basic_params(s);\n\n\n\n line_offset = s->line_offset;\n\n s1 = s->vram_ptr + (s->start_addr * 4);\n\n\n\n vga_get_text_resolution(s, &width, &height, &cw, &cheight);\n\n x_incr = cw * ((ds_get_bits_per_pixel(s->ds) + 7) >> 3);\n\n if ((height * width) > CH_ATTR_SIZE) {\n\n /* better than nothing: exit if transient size is too big */\n\n return;\n\n }\n\n\n\n if (width != s->last_width || height != s->last_height ||\n\n cw != s->last_cw || cheight != s->last_ch || s->last_depth) {\n\n s->last_scr_width = width * cw;\n\n s->last_scr_height = height * cheight;\n\n qemu_console_resize(s->ds, s->last_scr_width, s->last_scr_height);\n\n s->last_depth = 0;\n\n s->last_width = width;\n\n s->last_height = height;\n\n s->last_ch = cheight;\n\n s->last_cw = cw;\n\n full_update = 1;\n\n }\n\n s->rgb_to_pixel =\n\n rgb_to_pixel_dup_table[get_depth_index(s->ds)];\n\n full_update |= update_palette16(s);\n\n palette = s->last_palette;\n\n x_incr = cw * ((ds_get_bits_per_pixel(s->ds) + 7) >> 3);\n\n\n\n cursor_offset = ((s->cr[0x0e] << 8) | s->cr[0x0f]) - s->start_addr;\n\n if (cursor_offset != s->cursor_offset ||\n\n s->cr[0xa] != s->cursor_start ||\n\n s->cr[0xb] != s->cursor_end) {\n\n /* if the cursor position changed, we update the old and new\n\n chars */\n\n if (s->cursor_offset < CH_ATTR_SIZE)\n\n s->last_ch_attr[s->cursor_offset] = -1;\n\n if (cursor_offset < CH_ATTR_SIZE)\n\n s->last_ch_attr[cursor_offset] = -1;\n\n s->cursor_offset = cursor_offset;\n\n s->cursor_start = s->cr[0xa];\n\n s->cursor_end = s->cr[0xb];\n\n }\n\n cursor_ptr = s->vram_ptr + (s->start_addr + cursor_offset) * 4;\n\n\n\n depth_index = get_depth_index(s->ds);\n\n if (cw == 16)\n\n vga_draw_glyph8 = vga_draw_glyph16_table[depth_index];\n\n else\n\n vga_draw_glyph8 = vga_draw_glyph8_table[depth_index];\n\n vga_draw_glyph9 = vga_draw_glyph9_table[depth_index];\n\n\n\n dest = ds_get_data(s->ds);\n\n linesize = ds_get_linesize(s->ds);\n\n ch_attr_ptr = s->last_ch_attr;\n\n for(cy = 0; cy < height; cy++) {\n\n d1 = dest;\n\n src = s1;\n\n cx_min = width;\n\n cx_max = -1;\n\n for(cx = 0; cx < width; cx++) {\n\n ch_attr = *(uint16_t *)src;\n\n if (full_update || ch_attr != *ch_attr_ptr) {\n\n if (cx < cx_min)\n\n cx_min = cx;\n\n if (cx > cx_max)\n\n cx_max = cx;\n\n *ch_attr_ptr = ch_attr;\n\n#ifdef WORDS_BIGENDIAN\n\n ch = ch_attr >> 8;\n\n cattr = ch_attr & 0xff;\n\n#else\n\n ch = ch_attr & 0xff;\n\n cattr = ch_attr >> 8;\n\n#endif\n\n font_ptr = font_base[(cattr >> 3) & 1];\n\n font_ptr += 32 * 4 * ch;\n\n bgcol = palette[cattr >> 4];\n\n fgcol = palette[cattr & 0x0f];\n\n if (cw != 9) {\n\n vga_draw_glyph8(d1, linesize,\n\n font_ptr, cheight, fgcol, bgcol);\n\n } else {\n\n dup9 = 0;\n\n if (ch >= 0xb0 && ch <= 0xdf && (s->ar[0x10] & 0x04))\n\n dup9 = 1;\n\n vga_draw_glyph9(d1, linesize,\n\n font_ptr, cheight, fgcol, bgcol, dup9);\n\n }\n\n if (src == cursor_ptr &&\n\n !(s->cr[0x0a] & 0x20)) {\n\n int line_start, line_last, h;\n\n /* draw the cursor */\n\n line_start = s->cr[0x0a] & 0x1f;\n\n line_last = s->cr[0x0b] & 0x1f;\n\n /* XXX: check that */\n\n if (line_last > cheight - 1)\n\n line_last = cheight - 1;\n\n if (line_last >= line_start && line_start < cheight) {\n\n h = line_last - line_start + 1;\n\n d = d1 + linesize * line_start;\n\n if (cw != 9) {\n\n vga_draw_glyph8(d, linesize,\n\n cursor_glyph, h, fgcol, bgcol);\n\n } else {\n\n vga_draw_glyph9(d, linesize,\n\n cursor_glyph, h, fgcol, bgcol, 1);\n\n }\n\n }\n\n }\n\n }\n\n d1 += x_incr;\n\n src += 4;\n\n ch_attr_ptr++;\n\n }\n\n if (cx_max != -1) {\n\n dpy_update(s->ds, cx_min * cw, cy * cheight,\n\n (cx_max - cx_min + 1) * cw, cheight);\n\n }\n\n dest += linesize * cheight;\n\n s1 += line_offset;\n\n }\n\n}\n", + "output": "1", + "index": 22988 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int encode_apng(AVCodecContext *avctx, AVPacket *pkt,\n\n const AVFrame *pict, int *got_packet)\n\n{\n\n PNGEncContext *s = avctx->priv_data;\n\n int ret;\n\n int enc_row_size;\n\n size_t max_packet_size;\n\n APNGFctlChunk fctl_chunk;\n\n\n\n if (pict && avctx->codec_id == AV_CODEC_ID_APNG && s->color_type == PNG_COLOR_TYPE_PALETTE) {\n\n uint32_t checksum = ~av_crc(av_crc_get_table(AV_CRC_32_IEEE_LE), ~0U, pict->data[1], 256 * sizeof(uint32_t));\n\n\n\n if (avctx->frame_number == 0) {\n\n s->palette_checksum = checksum;\n\n } else if (checksum != s->palette_checksum) {\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"Input contains more than one unique palette. APNG does not support multiple palettes.\\n\");\n\n return -1;\n\n }\n\n }\n\n\n\n enc_row_size = deflateBound(&s->zstream, (avctx->width * s->bits_per_pixel + 7) >> 3);\n\n max_packet_size =\n\n AV_INPUT_BUFFER_MIN_SIZE + // headers\n\n avctx->height * (\n\n enc_row_size +\n\n (4 + 12) * (((int64_t)enc_row_size + IOBUF_SIZE - 1) / IOBUF_SIZE) // fdAT * ceil(enc_row_size / IOBUF_SIZE)\n\n );\n\n if (max_packet_size > INT_MAX)\n\n return AVERROR(ENOMEM);\n\n\n\n if (avctx->frame_number == 0) {\n\n s->bytestream = avctx->extradata = av_malloc(FF_MIN_BUFFER_SIZE);\n\n if (!avctx->extradata)\n\n return AVERROR(ENOMEM);\n\n\n\n ret = encode_headers(avctx, pict);\n\n if (ret < 0)\n\n return ret;\n\n\n\n avctx->extradata_size = s->bytestream - avctx->extradata;\n\n\n\n s->last_frame_packet = av_malloc(max_packet_size);\n\n if (!s->last_frame_packet)\n\n return AVERROR(ENOMEM);\n\n } else if (s->last_frame) {\n\n ret = ff_alloc_packet2(avctx, pkt, max_packet_size, 0);\n\n if (ret < 0)\n\n return ret;\n\n\n\n memcpy(pkt->data, s->last_frame_packet, s->last_frame_packet_size);\n\n pkt->size = s->last_frame_packet_size;\n\n pkt->pts = pkt->dts = s->last_frame->pts;\n\n }\n\n\n\n if (pict) {\n\n s->bytestream_start =\n\n s->bytestream = s->last_frame_packet;\n\n s->bytestream_end = s->bytestream + max_packet_size;\n\n\n\n // We're encoding the frame first, so we have to do a bit of shuffling around\n\n // to have the image data write to the correct place in the buffer\n\n fctl_chunk.sequence_number = s->sequence_number;\n\n ++s->sequence_number;\n\n s->bytestream += 26 + 12;\n\n\n\n ret = apng_encode_frame(avctx, pict, &fctl_chunk, &s->last_frame_fctl);\n\n if (ret < 0)\n\n return ret;\n\n\n\n fctl_chunk.delay_num = 0; // delay filled in during muxing\n\n fctl_chunk.delay_den = 0;\n\n } else {\n\n s->last_frame_fctl.dispose_op = APNG_DISPOSE_OP_NONE;\n\n }\n\n\n\n if (s->last_frame) {\n\n uint8_t* last_fctl_chunk_start = pkt->data;\n\n uint8_t buf[26];\n\n\n\n AV_WB32(buf + 0, s->last_frame_fctl.sequence_number);\n\n AV_WB32(buf + 4, s->last_frame_fctl.width);\n\n AV_WB32(buf + 8, s->last_frame_fctl.height);\n\n AV_WB32(buf + 12, s->last_frame_fctl.x_offset);\n\n AV_WB32(buf + 16, s->last_frame_fctl.y_offset);\n\n AV_WB16(buf + 20, s->last_frame_fctl.delay_num);\n\n AV_WB16(buf + 22, s->last_frame_fctl.delay_den);\n\n buf[24] = s->last_frame_fctl.dispose_op;\n\n buf[25] = s->last_frame_fctl.blend_op;\n\n png_write_chunk(&last_fctl_chunk_start, MKTAG('f', 'c', 'T', 'L'), buf, 26);\n\n\n\n *got_packet = 1;\n\n }\n\n\n\n if (pict) {\n\n if (!s->last_frame) {\n\n s->last_frame = av_frame_alloc();\n\n if (!s->last_frame)\n\n return AVERROR(ENOMEM);\n\n } else if (s->last_frame_fctl.dispose_op != APNG_DISPOSE_OP_PREVIOUS) {\n\n if (!s->prev_frame) {\n\n s->prev_frame = av_frame_alloc();\n\n if (!s->prev_frame)\n\n return AVERROR(ENOMEM);\n\n\n\n s->prev_frame->format = pict->format;\n\n s->prev_frame->width = pict->width;\n\n s->prev_frame->height = pict->height;\n\n if ((ret = av_frame_get_buffer(s->prev_frame, 32)) < 0)\n\n return ret;\n\n }\n\n\n\n // Do disposal, but not blending\n\n memcpy(s->prev_frame->data[0], s->last_frame->data[0],\n\n s->last_frame->linesize[0] * s->last_frame->height);\n\n if (s->last_frame_fctl.dispose_op == APNG_DISPOSE_OP_BACKGROUND) {\n\n uint32_t y;\n\n uint8_t bpp = (s->bits_per_pixel + 7) >> 3;\n\n for (y = s->last_frame_fctl.y_offset; y < s->last_frame_fctl.y_offset + s->last_frame_fctl.height; ++y) {\n\n size_t row_start = s->last_frame->linesize[0] * y + bpp * s->last_frame_fctl.x_offset;\n\n memset(s->prev_frame->data[0] + row_start, 0, bpp * s->last_frame_fctl.width);\n\n }\n\n }\n\n }\n\n\n\n av_frame_unref(s->last_frame);\n\n ret = av_frame_ref(s->last_frame, (AVFrame*)pict);\n\n if (ret < 0)\n\n return ret;\n\n\n\n s->last_frame_fctl = fctl_chunk;\n\n s->last_frame_packet_size = s->bytestream - s->bytestream_start;\n\n } else {\n\n av_frame_free(&s->last_frame);\n\n }\n\n\n\n return 0;\n\n}\n", + "output": "1", + "index": 22057 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void arm_cpu_realizefn(DeviceState *dev, Error **errp)\n\n{\n\n CPUState *cs = CPU(dev);\n\n ARMCPU *cpu = ARM_CPU(dev);\n\n ARMCPUClass *acc = ARM_CPU_GET_CLASS(dev);\n\n CPUARMState *env = &cpu->env;\n\n int pagebits;\n\n Error *local_err = NULL;\n\n\n\n cpu_exec_realizefn(cs, &local_err);\n\n if (local_err != NULL) {\n\n error_propagate(errp, local_err);\n\n return;\n\n }\n\n\n\n /* Some features automatically imply others: */\n\n if (arm_feature(env, ARM_FEATURE_V8)) {\n\n set_feature(env, ARM_FEATURE_V7);\n\n set_feature(env, ARM_FEATURE_ARM_DIV);\n\n set_feature(env, ARM_FEATURE_LPAE);\n\n }\n\n if (arm_feature(env, ARM_FEATURE_V7)) {\n\n set_feature(env, ARM_FEATURE_VAPA);\n\n set_feature(env, ARM_FEATURE_THUMB2);\n\n set_feature(env, ARM_FEATURE_MPIDR);\n\n if (!arm_feature(env, ARM_FEATURE_M)) {\n\n set_feature(env, ARM_FEATURE_V6K);\n\n } else {\n\n set_feature(env, ARM_FEATURE_V6);\n\n }\n\n\n\n /* Always define VBAR for V7 CPUs even if it doesn't exist in\n\n * non-EL3 configs. This is needed by some legacy boards.\n\n */\n\n set_feature(env, ARM_FEATURE_VBAR);\n\n }\n\n if (arm_feature(env, ARM_FEATURE_V6K)) {\n\n set_feature(env, ARM_FEATURE_V6);\n\n set_feature(env, ARM_FEATURE_MVFR);\n\n }\n\n if (arm_feature(env, ARM_FEATURE_V6)) {\n\n set_feature(env, ARM_FEATURE_V5);\n\n\n if (!arm_feature(env, ARM_FEATURE_M)) {\n\n set_feature(env, ARM_FEATURE_AUXCR);\n\n }\n\n }\n\n if (arm_feature(env, ARM_FEATURE_V5)) {\n\n set_feature(env, ARM_FEATURE_V4T);\n\n }\n\n if (arm_feature(env, ARM_FEATURE_M)) {\n\n set_feature(env, ARM_FEATURE_THUMB_DIV);\n\n }\n\n if (arm_feature(env, ARM_FEATURE_ARM_DIV)) {\n\n set_feature(env, ARM_FEATURE_THUMB_DIV);\n\n }\n\n if (arm_feature(env, ARM_FEATURE_VFP4)) {\n\n set_feature(env, ARM_FEATURE_VFP3);\n\n set_feature(env, ARM_FEATURE_VFP_FP16);\n\n }\n\n if (arm_feature(env, ARM_FEATURE_VFP3)) {\n\n set_feature(env, ARM_FEATURE_VFP);\n\n }\n\n if (arm_feature(env, ARM_FEATURE_LPAE)) {\n\n set_feature(env, ARM_FEATURE_V7MP);\n\n set_feature(env, ARM_FEATURE_PXN);\n\n }\n\n if (arm_feature(env, ARM_FEATURE_CBAR_RO)) {\n\n set_feature(env, ARM_FEATURE_CBAR);\n\n }\n\n if (arm_feature(env, ARM_FEATURE_THUMB2) &&\n\n !arm_feature(env, ARM_FEATURE_M)) {\n\n set_feature(env, ARM_FEATURE_THUMB_DSP);\n\n }\n\n\n\n if (arm_feature(env, ARM_FEATURE_V7) &&\n\n !arm_feature(env, ARM_FEATURE_M) &&\n\n !arm_feature(env, ARM_FEATURE_PMSA)) {\n\n /* v7VMSA drops support for the old ARMv5 tiny pages, so we\n\n * can use 4K pages.\n\n */\n\n pagebits = 12;\n\n } else {\n\n /* For CPUs which might have tiny 1K pages, or which have an\n\n * MPU and might have small region sizes, stick with 1K pages.\n\n */\n\n pagebits = 10;\n\n }\n\n if (!set_preferred_target_page_bits(pagebits)) {\n\n /* This can only ever happen for hotplugging a CPU, or if\n\n * the board code incorrectly creates a CPU which it has\n\n * promised via minimum_page_size that it will not.\n\n */\n\n error_setg(errp, \"This CPU requires a smaller page size than the \"\n\n \"system is using\");\n\n return;\n\n }\n\n\n\n /* This cpu-id-to-MPIDR affinity is used only for TCG; KVM will override it.\n\n * We don't support setting cluster ID ([16..23]) (known as Aff2\n\n * in later ARM ARM versions), or any of the higher affinity level fields,\n\n * so these bits always RAZ.\n\n */\n\n if (cpu->mp_affinity == ARM64_AFFINITY_INVALID) {\n\n cpu->mp_affinity = arm_cpu_mp_affinity(cs->cpu_index,\n\n ARM_DEFAULT_CPUS_PER_CLUSTER);\n\n }\n\n\n\n if (cpu->reset_hivecs) {\n\n cpu->reset_sctlr |= (1 << 13);\n\n }\n\n\n\n if (cpu->cfgend) {\n\n if (arm_feature(&cpu->env, ARM_FEATURE_V7)) {\n\n cpu->reset_sctlr |= SCTLR_EE;\n\n } else {\n\n cpu->reset_sctlr |= SCTLR_B;\n\n }\n\n }\n\n\n\n if (!cpu->has_el3) {\n\n /* If the has_el3 CPU property is disabled then we need to disable the\n\n * feature.\n\n */\n\n unset_feature(env, ARM_FEATURE_EL3);\n\n\n\n /* Disable the security extension feature bits in the processor feature\n\n * registers as well. These are id_pfr1[7:4] and id_aa64pfr0[15:12].\n\n */\n\n cpu->id_pfr1 &= ~0xf0;\n\n cpu->id_aa64pfr0 &= ~0xf000;\n\n }\n\n\n\n if (!cpu->has_el2) {\n\n unset_feature(env, ARM_FEATURE_EL2);\n\n }\n\n\n\n if (!cpu->has_pmu) {\n\n unset_feature(env, ARM_FEATURE_PMU);\n\n cpu->id_aa64dfr0 &= ~0xf00;\n\n }\n\n\n\n if (!arm_feature(env, ARM_FEATURE_EL2)) {\n\n /* Disable the hypervisor feature bits in the processor feature\n\n * registers if we don't have EL2. These are id_pfr1[15:12] and\n\n * id_aa64pfr0_el1[11:8].\n\n */\n\n cpu->id_aa64pfr0 &= ~0xf00;\n\n cpu->id_pfr1 &= ~0xf000;\n\n }\n\n\n\n /* MPU can be configured out of a PMSA CPU either by setting has-mpu\n\n * to false or by setting pmsav7-dregion to 0.\n\n */\n\n if (!cpu->has_mpu) {\n\n cpu->pmsav7_dregion = 0;\n\n }\n\n if (cpu->pmsav7_dregion == 0) {\n\n cpu->has_mpu = false;\n\n }\n\n\n\n if (arm_feature(env, ARM_FEATURE_PMSA) &&\n\n arm_feature(env, ARM_FEATURE_V7)) {\n\n uint32_t nr = cpu->pmsav7_dregion;\n\n\n\n if (nr > 0xff) {\n\n error_setg(errp, \"PMSAv7 MPU #regions invalid %\" PRIu32, nr);\n\n return;\n\n }\n\n\n\n if (nr) {\n\n if (arm_feature(env, ARM_FEATURE_V8)) {\n\n /* PMSAv8 */\n\n env->pmsav8.rbar[M_REG_NS] = g_new0(uint32_t, nr);\n\n env->pmsav8.rlar[M_REG_NS] = g_new0(uint32_t, nr);\n\n if (arm_feature(env, ARM_FEATURE_M_SECURITY)) {\n\n env->pmsav8.rbar[M_REG_S] = g_new0(uint32_t, nr);\n\n env->pmsav8.rlar[M_REG_S] = g_new0(uint32_t, nr);\n\n }\n\n } else {\n\n env->pmsav7.drbar = g_new0(uint32_t, nr);\n\n env->pmsav7.drsr = g_new0(uint32_t, nr);\n\n env->pmsav7.dracr = g_new0(uint32_t, nr);\n\n }\n\n }\n\n }\n\n\n\n if (arm_feature(env, ARM_FEATURE_EL3)) {\n\n set_feature(env, ARM_FEATURE_VBAR);\n\n }\n\n\n\n register_cp_regs_for_features(cpu);\n\n arm_cpu_register_gdb_regs_for_features(cpu);\n\n\n\n init_cpreg_list(cpu);\n\n\n\n#ifndef CONFIG_USER_ONLY\n\n if (cpu->has_el3 || arm_feature(env, ARM_FEATURE_M_SECURITY)) {\n\n AddressSpace *as;\n\n\n\n cs->num_ases = 2;\n\n\n\n if (!cpu->secure_memory) {\n\n cpu->secure_memory = cs->memory;\n\n }\n\n as = address_space_init_shareable(cpu->secure_memory,\n\n \"cpu-secure-memory\");\n\n cpu_address_space_init(cs, as, ARMASIdx_S);\n\n } else {\n\n cs->num_ases = 1;\n\n }\n\n\n\n cpu_address_space_init(cs,\n\n address_space_init_shareable(cs->memory,\n\n \"cpu-memory\"),\n\n ARMASIdx_NS);\n\n#endif\n\n\n\n qemu_init_vcpu(cs);\n\n cpu_reset(cs);\n\n\n\n acc->parent_realize(dev, errp);\n\n}", + "output": "1", + "index": 9439 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int roq_read_packet(AVFormatContext *s,\n\n AVPacket *pkt)\n\n{\n\n RoqDemuxContext *roq = s->priv_data;\n\n AVIOContext *pb = s->pb;\n\n int ret = 0;\n\n unsigned int chunk_size;\n\n unsigned int chunk_type;\n\n unsigned int codebook_size;\n\n unsigned char preamble[RoQ_CHUNK_PREAMBLE_SIZE];\n\n int packet_read = 0;\n\n int64_t codebook_offset;\n\n\n\n while (!packet_read) {\n\n\n\n if (avio_feof(s->pb))\n\n return AVERROR(EIO);\n\n\n\n /* get the next chunk preamble */\n\n if ((ret = avio_read(pb, preamble, RoQ_CHUNK_PREAMBLE_SIZE)) !=\n\n RoQ_CHUNK_PREAMBLE_SIZE)\n\n return AVERROR(EIO);\n\n\n\n chunk_type = AV_RL16(&preamble[0]);\n\n chunk_size = AV_RL32(&preamble[2]);\n\n if(chunk_size > INT_MAX)\n\n return AVERROR_INVALIDDATA;\n\n\n\n chunk_size = ffio_limit(pb, chunk_size);\n\n\n\n switch (chunk_type) {\n\n\n\n case RoQ_INFO:\n\n if (roq->video_stream_index == -1) {\n\n AVStream *st = avformat_new_stream(s, NULL);\n\n if (!st)\n\n return AVERROR(ENOMEM);\n\n avpriv_set_pts_info(st, 63, 1, roq->frame_rate);\n\n roq->video_stream_index = st->index;\n\n st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;\n\n st->codecpar->codec_id = AV_CODEC_ID_ROQ;\n\n st->codecpar->codec_tag = 0; /* no fourcc */\n\n\n\n if (avio_read(pb, preamble, RoQ_CHUNK_PREAMBLE_SIZE) != RoQ_CHUNK_PREAMBLE_SIZE)\n\n return AVERROR(EIO);\n\n st->codecpar->width = roq->width = AV_RL16(preamble);\n\n st->codecpar->height = roq->height = AV_RL16(preamble + 2);\n\n break;\n\n }\n\n /* don't care about this chunk anymore */\n\n avio_skip(pb, RoQ_CHUNK_PREAMBLE_SIZE);\n\n break;\n\n\n\n case RoQ_QUAD_CODEBOOK:\n\n if (roq->video_stream_index < 0)\n\n return AVERROR_INVALIDDATA;\n\n /* packet needs to contain both this codebook and next VQ chunk */\n\n codebook_offset = avio_tell(pb) - RoQ_CHUNK_PREAMBLE_SIZE;\n\n codebook_size = chunk_size;\n\n avio_skip(pb, codebook_size);\n\n if (avio_read(pb, preamble, RoQ_CHUNK_PREAMBLE_SIZE) !=\n\n RoQ_CHUNK_PREAMBLE_SIZE)\n\n return AVERROR(EIO);\n\n chunk_size = AV_RL32(&preamble[2]) + RoQ_CHUNK_PREAMBLE_SIZE * 2 +\n\n codebook_size;\n\n\n\n if (chunk_size > INT_MAX)\n\n return AVERROR_INVALIDDATA;\n\n\n\n /* rewind */\n\n avio_seek(pb, codebook_offset, SEEK_SET);\n\n\n\n /* load up the packet */\n\n ret= av_get_packet(pb, pkt, chunk_size);\n\n if (ret != chunk_size)\n\n return AVERROR(EIO);\n\n pkt->stream_index = roq->video_stream_index;\n\n pkt->pts = roq->video_pts++;\n\n\n\n packet_read = 1;\n\n break;\n\n\n\n case RoQ_SOUND_MONO:\n\n case RoQ_SOUND_STEREO:\n\n if (roq->audio_stream_index == -1) {\n\n AVStream *st = avformat_new_stream(s, NULL);\n\n if (!st)\n\n return AVERROR(ENOMEM);\n\n avpriv_set_pts_info(st, 32, 1, RoQ_AUDIO_SAMPLE_RATE);\n\n roq->audio_stream_index = st->index;\n\n st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;\n\n st->codecpar->codec_id = AV_CODEC_ID_ROQ_DPCM;\n\n st->codecpar->codec_tag = 0; /* no tag */\n\n if (chunk_type == RoQ_SOUND_STEREO) {\n\n st->codecpar->channels = 2;\n\n st->codecpar->channel_layout = AV_CH_LAYOUT_STEREO;\n\n } else {\n\n st->codecpar->channels = 1;\n\n st->codecpar->channel_layout = AV_CH_LAYOUT_MONO;\n\n }\n\n roq->audio_channels = st->codecpar->channels;\n\n st->codecpar->sample_rate = RoQ_AUDIO_SAMPLE_RATE;\n\n st->codecpar->bits_per_coded_sample = 16;\n\n st->codecpar->bit_rate = st->codecpar->channels * st->codecpar->sample_rate *\n\n st->codecpar->bits_per_coded_sample;\n\n st->codecpar->block_align = st->codecpar->channels * st->codecpar->bits_per_coded_sample;\n\n }\n\n case RoQ_QUAD_VQ:\n\n if (chunk_type == RoQ_QUAD_VQ) {\n\n if (roq->video_stream_index < 0)\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n /* load up the packet */\n\n if (av_new_packet(pkt, chunk_size + RoQ_CHUNK_PREAMBLE_SIZE))\n\n return AVERROR(EIO);\n\n /* copy over preamble */\n\n memcpy(pkt->data, preamble, RoQ_CHUNK_PREAMBLE_SIZE);\n\n\n\n if (chunk_type == RoQ_QUAD_VQ) {\n\n pkt->stream_index = roq->video_stream_index;\n\n pkt->pts = roq->video_pts++;\n\n } else {\n\n pkt->stream_index = roq->audio_stream_index;\n\n pkt->pts = roq->audio_frame_count;\n\n roq->audio_frame_count += (chunk_size / roq->audio_channels);\n\n }\n\n\n\n pkt->pos= avio_tell(pb);\n\n ret = avio_read(pb, pkt->data + RoQ_CHUNK_PREAMBLE_SIZE,\n\n chunk_size);\n\n if (ret != chunk_size)\n\n ret = AVERROR(EIO);\n\n\n\n packet_read = 1;\n\n break;\n\n\n\n default:\n\n av_log(s, AV_LOG_ERROR, \" unknown RoQ chunk (%04X)\\n\", chunk_type);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n }\n\n\n\n return ret;\n\n}\n", + "output": "1", + "index": 22426 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static ssize_t eth_rx(NetClientState *nc, const uint8_t *buf, size_t size)\n\n{\n\n XilinxAXIEnet *s = qemu_get_nic_opaque(nc);\n\n static const unsigned char sa_bcast[6] = {0xff, 0xff, 0xff,\n\n 0xff, 0xff, 0xff};\n\n static const unsigned char sa_ipmcast[3] = {0x01, 0x00, 0x52};\n\n uint32_t app[6] = {0};\n\n int promisc = s->fmi & (1 << 31);\n\n int unicast, broadcast, multicast, ip_multicast = 0;\n\n uint32_t csum32;\n\n uint16_t csum16;\n\n int i;\n\n\n\n DENET(qemu_log(\"%s: %zd bytes\\n\", __func__, size));\n\n\n\n unicast = ~buf[0] & 0x1;\n\n broadcast = memcmp(buf, sa_bcast, 6) == 0;\n\n multicast = !unicast && !broadcast;\n\n if (multicast && (memcmp(sa_ipmcast, buf, sizeof sa_ipmcast) == 0)) {\n\n ip_multicast = 1;\n\n }\n\n\n\n /* Jumbo or vlan sizes ? */\n\n if (!(s->rcw[1] & RCW1_JUM)) {\n\n if (size > 1518 && size <= 1522 && !(s->rcw[1] & RCW1_VLAN)) {\n\n return size;\n\n }\n\n }\n\n\n\n /* Basic Address filters. If you want to use the extended filters\n\n you'll generally have to place the ethernet mac into promiscuous mode\n\n to avoid the basic filtering from dropping most frames. */\n\n if (!promisc) {\n\n if (unicast) {\n\n if (!enet_match_addr(buf, s->uaw[0], s->uaw[1])) {\n\n return size;\n\n }\n\n } else {\n\n if (broadcast) {\n\n /* Broadcast. */\n\n if (s->regs[R_RAF] & RAF_BCAST_REJ) {\n\n return size;\n\n }\n\n } else {\n\n int drop = 1;\n\n\n\n /* Multicast. */\n\n if (s->regs[R_RAF] & RAF_MCAST_REJ) {\n\n return size;\n\n }\n\n\n\n for (i = 0; i < 4; i++) {\n\n if (enet_match_addr(buf, s->maddr[i][0], s->maddr[i][1])) {\n\n drop = 0;\n\n break;\n\n }\n\n }\n\n\n\n if (drop) {\n\n return size;\n\n }\n\n }\n\n }\n\n }\n\n\n\n /* Extended mcast filtering enabled? */\n\n if (axienet_newfunc_enabled(s) && axienet_extmcf_enabled(s)) {\n\n if (unicast) {\n\n if (!enet_match_addr(buf, s->ext_uaw[0], s->ext_uaw[1])) {\n\n return size;\n\n }\n\n } else {\n\n if (broadcast) {\n\n /* Broadcast. ??? */\n\n if (s->regs[R_RAF] & RAF_BCAST_REJ) {\n\n return size;\n\n }\n\n } else {\n\n int idx, bit;\n\n\n\n /* Multicast. */\n\n if (!memcmp(buf, sa_ipmcast, 3)) {\n\n return size;\n\n }\n\n\n\n idx = (buf[4] & 0x7f) << 8;\n\n idx |= buf[5];\n\n\n\n bit = 1 << (idx & 0x1f);\n\n idx >>= 5;\n\n\n\n if (!(s->ext_mtable[idx] & bit)) {\n\n return size;\n\n }\n\n }\n\n }\n\n }\n\n\n\n if (size < 12) {\n\n s->regs[R_IS] |= IS_RX_REJECT;\n\n enet_update_irq(s);\n\n return -1;\n\n }\n\n\n\n if (size > (s->c_rxmem - 4)) {\n\n size = s->c_rxmem - 4;\n\n }\n\n\n\n memcpy(s->rxmem, buf, size);\n\n memset(s->rxmem + size, 0, 4); /* Clear the FCS. */\n\n\n\n if (s->rcw[1] & RCW1_FCS) {\n\n size += 4; /* fcs is inband. */\n\n }\n\n\n\n app[0] = 5 << 28;\n\n csum32 = net_checksum_add(size - 14, (uint8_t *)s->rxmem + 14);\n\n /* Fold it once. */\n\n csum32 = (csum32 & 0xffff) + (csum32 >> 16);\n\n /* And twice to get rid of possible carries. */\n\n csum16 = (csum32 & 0xffff) + (csum32 >> 16);\n\n app[3] = csum16;\n\n app[4] = size & 0xffff;\n\n\n\n s->stats.rx_bytes += size;\n\n s->stats.rx++;\n\n if (multicast) {\n\n s->stats.rx_mcast++;\n\n app[2] |= 1 | (ip_multicast << 1);\n\n } else if (broadcast) {\n\n s->stats.rx_bcast++;\n\n app[2] |= 1 << 3;\n\n }\n\n\n\n /* Good frame. */\n\n app[2] |= 1 << 6;\n\n\n\n s->rxsize = size;\n\n s->rxpos = 0;\n\n s->rxapp = g_memdup(app, sizeof(app));\n\n axienet_eth_rx_notify(s);\n\n\n\n enet_update_irq(s);\n\n return size;\n\n}\n", + "output": "0", + "index": 12379 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int decode_band_hdr(IVI45DecContext *ctx, IVIBandDesc *band,\n\n AVCodecContext *avctx)\n\n{\n\n int plane, band_num, indx, transform_id, scan_indx;\n\n int i;\n\n\n\n plane = get_bits(&ctx->gb, 2);\n\n band_num = get_bits(&ctx->gb, 4);\n\n if (band->plane != plane || band->band_num != band_num) {\n\n av_log(avctx, AV_LOG_ERROR, \"Invalid band header sequence!\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n band->is_empty = get_bits1(&ctx->gb);\n\n if (!band->is_empty) {\n\n int old_blk_size = band->blk_size;\n\n /* skip header size\n\n * If header size is not given, header size is 4 bytes. */\n\n if (get_bits1(&ctx->gb))\n\n skip_bits(&ctx->gb, 16);\n\n\n\n band->is_halfpel = get_bits(&ctx->gb, 2);\n\n if (band->is_halfpel >= 2) {\n\n av_log(avctx, AV_LOG_ERROR, \"Invalid/unsupported mv resolution: %d!\\n\",\n\n band->is_halfpel);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n#if IVI4_STREAM_ANALYSER\n\n if (!band->is_halfpel)\n\n ctx->uses_fullpel = 1;\n\n#endif\n\n\n\n band->checksum_present = get_bits1(&ctx->gb);\n\n if (band->checksum_present)\n\n band->checksum = get_bits(&ctx->gb, 16);\n\n\n\n indx = get_bits(&ctx->gb, 2);\n\n if (indx == 3) {\n\n av_log(avctx, AV_LOG_ERROR, \"Invalid block size!\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n band->mb_size = 16 >> indx;\n\n band->blk_size = 8 >> (indx >> 1);\n\n\n\n band->inherit_mv = get_bits1(&ctx->gb);\n\n band->inherit_qdelta = get_bits1(&ctx->gb);\n\n\n\n band->glob_quant = get_bits(&ctx->gb, 5);\n\n\n\n if (!get_bits1(&ctx->gb) || ctx->frame_type == IVI4_FRAMETYPE_INTRA) {\n\n transform_id = get_bits(&ctx->gb, 5);\n\n if (transform_id >= FF_ARRAY_ELEMS(transforms) ||\n\n !transforms[transform_id].inv_trans) {\n\n avpriv_request_sample(avctx, \"Transform %d\", transform_id);\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n if ((transform_id >= 7 && transform_id <= 9) ||\n\n transform_id == 17) {\n\n avpriv_request_sample(avctx, \"DCT transform\");\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n\n\n#if IVI4_STREAM_ANALYSER\n\n if ((transform_id >= 0 && transform_id <= 2) || transform_id == 10)\n\n ctx->uses_haar = 1;\n\n#endif\n\n\n\n band->inv_transform = transforms[transform_id].inv_trans;\n\n band->dc_transform = transforms[transform_id].dc_trans;\n\n band->is_2d_trans = transforms[transform_id].is_2d_trans;\n\n if (transform_id < 10)\n\n band->transform_size = 8;\n\n else\n\n band->transform_size = 4;\n\n\n\n if (band->blk_size != band->transform_size)\n\n return AVERROR_INVALIDDATA;\n\n\n\n scan_indx = get_bits(&ctx->gb, 4);\n\n if (scan_indx == 15) {\n\n av_log(avctx, AV_LOG_ERROR, \"Custom scan pattern encountered!\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n if (scan_indx > 4 && scan_indx < 10) {\n\n if (band->blk_size != 4)\n\n return AVERROR_INVALIDDATA;\n\n } else if (band->blk_size != 8)\n\n return AVERROR_INVALIDDATA;\n\n\n\n band->scan = scan_index_to_tab[scan_indx];\n\n\n\n band->quant_mat = get_bits(&ctx->gb, 5);\n\n if (band->quant_mat >= FF_ARRAY_ELEMS(quant_index_to_tab)) {\n\n\n\n if (band->quant_mat == 31)\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"Custom quant matrix encountered!\\n\");\n\n else\n\n avpriv_request_sample(avctx, \"Quantization matrix %d\",\n\n band->quant_mat);\n\n band->quant_mat = -1;\n\n return AVERROR_INVALIDDATA;\n\n }\n\n } else {\n\n if (old_blk_size != band->blk_size) {\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"The band block size does not match the configuration \"\n\n \"inherited\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n if (band->quant_mat < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"Invalid quant_mat inherited\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n }\n\n\n\n /* decode block huffman codebook */\n\n if (!get_bits1(&ctx->gb))\n\n band->blk_vlc.tab = ctx->blk_vlc.tab;\n\n else\n\n if (ff_ivi_dec_huff_desc(&ctx->gb, 1, IVI_BLK_HUFF,\n\n &band->blk_vlc, avctx))\n\n return AVERROR_INVALIDDATA;\n\n\n\n /* select appropriate rvmap table for this band */\n\n band->rvmap_sel = get_bits1(&ctx->gb) ? get_bits(&ctx->gb, 3) : 8;\n\n\n\n /* decode rvmap probability corrections if any */\n\n band->num_corr = 0; /* there is no corrections */\n\n if (get_bits1(&ctx->gb)) {\n\n band->num_corr = get_bits(&ctx->gb, 8); /* get number of correction pairs */\n\n if (band->num_corr > 61) {\n\n av_log(avctx, AV_LOG_ERROR, \"Too many corrections: %d\\n\",\n\n band->num_corr);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n /* read correction pairs */\n\n for (i = 0; i < band->num_corr * 2; i++)\n\n band->corr[i] = get_bits(&ctx->gb, 8);\n\n }\n\n }\n\n\n\n if (band->blk_size == 8) {\n\n band->intra_base = &ivi4_quant_8x8_intra[quant_index_to_tab[band->quant_mat]][0];\n\n band->inter_base = &ivi4_quant_8x8_inter[quant_index_to_tab[band->quant_mat]][0];\n\n } else {\n\n band->intra_base = &ivi4_quant_4x4_intra[quant_index_to_tab[band->quant_mat]][0];\n\n band->inter_base = &ivi4_quant_4x4_inter[quant_index_to_tab[band->quant_mat]][0];\n\n }\n\n\n\n /* Indeo 4 doesn't use scale tables */\n\n band->intra_scale = NULL;\n\n band->inter_scale = NULL;\n\n\n\n align_get_bits(&ctx->gb);\n\n\n\n return 0;\n\n}\n", + "output": "0", + "index": 14263 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int build_feed_streams(void)\n\n{\n\n FFServerStream *stream, *feed;\n\n int i;\n\n\n\n /* gather all streams */\n\n for(stream = config.first_stream; stream; stream = stream->next) {\n\n feed = stream->feed;\n\n if (!feed)\n\n continue;\n\n\n\n if (stream->is_feed) {\n\n for(i=0;inb_streams;i++)\n\n stream->feed_streams[i] = i;\n\n } else {\n\n /* we handle a stream coming from a feed */\n\n for(i=0;inb_streams;i++)\n\n stream->feed_streams[i] = add_av_stream(feed,\n\n stream->streams[i]);\n\n }\n\n }\n\n\n\n /* create feed files if needed */\n\n for(feed = config.first_feed; feed; feed = feed->next_feed) {\n\n int fd;\n\n\n\n if (avio_check(feed->feed_filename, AVIO_FLAG_READ) > 0) {\n\n /* See if it matches */\n\n AVFormatContext *s = NULL;\n\n int matches = 0;\n\n\n\n if (avformat_open_input(&s, feed->feed_filename, NULL, NULL) >= 0) {\n\n /* set buffer size */\n\n int ret = ffio_set_buf_size(s->pb, FFM_PACKET_SIZE);\n\n if (ret < 0) {\n\n http_log(\"Failed to set buffer size\\n\");\n\n goto bail;\n\n }\n\n\n\n /* Now see if it matches */\n\n if (s->nb_streams == feed->nb_streams) {\n\n matches = 1;\n\n for(i=0;inb_streams;i++) {\n\n AVStream *sf, *ss;\n\n sf = feed->streams[i];\n\n ss = s->streams[i];\n\n\n\n if (sf->index != ss->index ||\n\n sf->id != ss->id) {\n\n http_log(\"Index & Id do not match for stream %d (%s)\\n\",\n\n i, feed->feed_filename);\n\n matches = 0;\n\n } else {\n\n AVCodecContext *ccf, *ccs;\n\n\n\n ccf = sf->codec;\n\n ccs = ss->codec;\n\n#define CHECK_CODEC(x) (ccf->x != ccs->x)\n\n\n\n if (CHECK_CODEC(codec_id) || CHECK_CODEC(codec_type)) {\n\n http_log(\"Codecs do not match for stream %d\\n\", i);\n\n matches = 0;\n\n } else if (CHECK_CODEC(bit_rate) || CHECK_CODEC(flags)) {\n\n http_log(\"Codec bitrates do not match for stream %d\\n\", i);\n\n matches = 0;\n\n } else if (ccf->codec_type == AVMEDIA_TYPE_VIDEO) {\n\n if (CHECK_CODEC(time_base.den) ||\n\n CHECK_CODEC(time_base.num) ||\n\n CHECK_CODEC(width) ||\n\n CHECK_CODEC(height)) {\n\n http_log(\"Codec width, height and framerate do not match for stream %d\\n\", i);\n\n matches = 0;\n\n }\n\n } else if (ccf->codec_type == AVMEDIA_TYPE_AUDIO) {\n\n if (CHECK_CODEC(sample_rate) ||\n\n CHECK_CODEC(channels) ||\n\n CHECK_CODEC(frame_size)) {\n\n http_log(\"Codec sample_rate, channels, frame_size do not match for stream %d\\n\", i);\n\n matches = 0;\n\n }\n\n } else {\n\n http_log(\"Unknown codec type\\n\");\n\n matches = 0;\n\n }\n\n }\n\n if (!matches)\n\n break;\n\n }\n\n } else\n\n http_log(\"Deleting feed file '%s' as stream counts differ (%d != %d)\\n\",\n\n feed->feed_filename, s->nb_streams, feed->nb_streams);\n\n\n\n avformat_close_input(&s);\n\n } else\n\n http_log(\"Deleting feed file '%s' as it appears to be corrupt\\n\",\n\n feed->feed_filename);\n\n\n\n if (!matches) {\n\n if (feed->readonly) {\n\n http_log(\"Unable to delete feed file '%s' as it is marked readonly\\n\",\n\n feed->feed_filename);\n\n goto bail;\n\n }\n\n unlink(feed->feed_filename);\n\n }\n\n }\n\n if (avio_check(feed->feed_filename, AVIO_FLAG_WRITE) <= 0) {\n\n AVFormatContext *s = avformat_alloc_context();\n\n\n\n if (!s) {\n\n http_log(\"Failed to allocate context\\n\");\n\n goto bail;\n\n }\n\n\n\n if (feed->readonly) {\n\n http_log(\"Unable to create feed file '%s' as it is marked readonly\\n\",\n\n feed->feed_filename);\n\n goto bail;\n\n }\n\n\n\n /* only write the header of the ffm file */\n\n if (avio_open(&s->pb, feed->feed_filename, AVIO_FLAG_WRITE) < 0) {\n\n http_log(\"Could not open output feed file '%s'\\n\",\n\n feed->feed_filename);\n\n goto bail;\n\n }\n\n s->oformat = feed->fmt;\n\n s->nb_streams = feed->nb_streams;\n\n s->streams = feed->streams;\n\n if (avformat_write_header(s, NULL) < 0) {\n\n http_log(\"Container doesn't support the required parameters\\n\");\n\n goto bail;\n\n }\n\n /* XXX: need better API */\n\n av_freep(&s->priv_data);\n\n avio_closep(&s->pb);\n\n s->streams = NULL;\n\n s->nb_streams = 0;\n\n avformat_free_context(s);\n\n }\n\n /* get feed size and write index */\n\n fd = open(feed->feed_filename, O_RDONLY);\n\n if (fd < 0) {\n\n http_log(\"Could not open output feed file '%s'\\n\",\n\n feed->feed_filename);\n\n goto bail;\n\n }\n\n\n\n feed->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE);\n\n feed->feed_size = lseek(fd, 0, SEEK_END);\n\n /* ensure that we do not wrap before the end of file */\n\n if (feed->feed_max_size && feed->feed_max_size < feed->feed_size)\n\n feed->feed_max_size = feed->feed_size;\n\n\n\n close(fd);\n\n }\n\n return 0;\n\n\n\nbail:\n\n return -1;\n\n}\n", + "output": "0", + "index": 17997 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void disas_thumb_insn(CPUState *env, DisasContext *s)\n\n{\n\n uint32_t val, insn, op, rm, rn, rd, shift, cond;\n\n int32_t offset;\n\n int i;\n\n TCGv tmp;\n\n TCGv tmp2;\n\n TCGv addr;\n\n\n\n if (s->condexec_mask) {\n\n cond = s->condexec_cond;\n\n if (cond != 0x0e) { /* Skip conditional when condition is AL. */\n\n s->condlabel = gen_new_label();\n\n gen_test_cc(cond ^ 1, s->condlabel);\n\n s->condjmp = 1;\n\n }\n\n }\n\n\n\n insn = lduw_code(s->pc);\n\n s->pc += 2;\n\n\n\n switch (insn >> 12) {\n\n case 0: case 1:\n\n\n\n rd = insn & 7;\n\n op = (insn >> 11) & 3;\n\n if (op == 3) {\n\n /* add/subtract */\n\n rn = (insn >> 3) & 7;\n\n tmp = load_reg(s, rn);\n\n if (insn & (1 << 10)) {\n\n /* immediate */\n\n tmp2 = new_tmp();\n\n tcg_gen_movi_i32(tmp2, (insn >> 6) & 7);\n\n } else {\n\n /* reg */\n\n rm = (insn >> 6) & 7;\n\n tmp2 = load_reg(s, rm);\n\n }\n\n if (insn & (1 << 9)) {\n\n if (s->condexec_mask)\n\n tcg_gen_sub_i32(tmp, tmp, tmp2);\n\n else\n\n gen_helper_sub_cc(tmp, tmp, tmp2);\n\n } else {\n\n if (s->condexec_mask)\n\n tcg_gen_add_i32(tmp, tmp, tmp2);\n\n else\n\n gen_helper_add_cc(tmp, tmp, tmp2);\n\n }\n\n dead_tmp(tmp2);\n\n store_reg(s, rd, tmp);\n\n } else {\n\n /* shift immediate */\n\n rm = (insn >> 3) & 7;\n\n shift = (insn >> 6) & 0x1f;\n\n tmp = load_reg(s, rm);\n\n gen_arm_shift_im(tmp, op, shift, s->condexec_mask == 0);\n\n if (!s->condexec_mask)\n\n gen_logic_CC(tmp);\n\n store_reg(s, rd, tmp);\n\n }\n\n break;\n\n case 2: case 3:\n\n /* arithmetic large immediate */\n\n op = (insn >> 11) & 3;\n\n rd = (insn >> 8) & 0x7;\n\n if (op == 0) { /* mov */\n\n tmp = new_tmp();\n\n tcg_gen_movi_i32(tmp, insn & 0xff);\n\n if (!s->condexec_mask)\n\n gen_logic_CC(tmp);\n\n store_reg(s, rd, tmp);\n\n } else {\n\n tmp = load_reg(s, rd);\n\n tmp2 = new_tmp();\n\n tcg_gen_movi_i32(tmp2, insn & 0xff);\n\n switch (op) {\n\n case 1: /* cmp */\n\n gen_helper_sub_cc(tmp, tmp, tmp2);\n\n dead_tmp(tmp);\n\n dead_tmp(tmp2);\n\n break;\n\n case 2: /* add */\n\n if (s->condexec_mask)\n\n tcg_gen_add_i32(tmp, tmp, tmp2);\n\n else\n\n gen_helper_add_cc(tmp, tmp, tmp2);\n\n dead_tmp(tmp2);\n\n store_reg(s, rd, tmp);\n\n break;\n\n case 3: /* sub */\n\n if (s->condexec_mask)\n\n tcg_gen_sub_i32(tmp, tmp, tmp2);\n\n else\n\n gen_helper_sub_cc(tmp, tmp, tmp2);\n\n dead_tmp(tmp2);\n\n store_reg(s, rd, tmp);\n\n break;\n\n }\n\n }\n\n break;\n\n case 4:\n\n if (insn & (1 << 11)) {\n\n rd = (insn >> 8) & 7;\n\n /* load pc-relative. Bit 1 of PC is ignored. */\n\n val = s->pc + 2 + ((insn & 0xff) * 4);\n\n val &= ~(uint32_t)2;\n\n addr = new_tmp();\n\n tcg_gen_movi_i32(addr, val);\n\n tmp = gen_ld32(addr, IS_USER(s));\n\n dead_tmp(addr);\n\n store_reg(s, rd, tmp);\n\n break;\n\n }\n\n if (insn & (1 << 10)) {\n\n /* data processing extended or blx */\n\n rd = (insn & 7) | ((insn >> 4) & 8);\n\n rm = (insn >> 3) & 0xf;\n\n op = (insn >> 8) & 3;\n\n switch (op) {\n\n case 0: /* add */\n\n tmp = load_reg(s, rd);\n\n tmp2 = load_reg(s, rm);\n\n tcg_gen_add_i32(tmp, tmp, tmp2);\n\n dead_tmp(tmp2);\n\n store_reg(s, rd, tmp);\n\n break;\n\n case 1: /* cmp */\n\n tmp = load_reg(s, rd);\n\n tmp2 = load_reg(s, rm);\n\n gen_helper_sub_cc(tmp, tmp, tmp2);\n\n dead_tmp(tmp2);\n\n dead_tmp(tmp);\n\n break;\n\n case 2: /* mov/cpy */\n\n tmp = load_reg(s, rm);\n\n store_reg(s, rd, tmp);\n\n break;\n\n case 3:/* branch [and link] exchange thumb register */\n\n tmp = load_reg(s, rm);\n\n if (insn & (1 << 7)) {\n\n val = (uint32_t)s->pc | 1;\n\n tmp2 = new_tmp();\n\n tcg_gen_movi_i32(tmp2, val);\n\n store_reg(s, 14, tmp2);\n\n }\n\n gen_bx(s, tmp);\n\n break;\n\n }\n\n break;\n\n }\n\n\n\n /* data processing register */\n\n rd = insn & 7;\n\n rm = (insn >> 3) & 7;\n\n op = (insn >> 6) & 0xf;\n\n if (op == 2 || op == 3 || op == 4 || op == 7) {\n\n /* the shift/rotate ops want the operands backwards */\n\n val = rm;\n\n rm = rd;\n\n rd = val;\n\n val = 1;\n\n } else {\n\n val = 0;\n\n }\n\n\n\n if (op == 9) { /* neg */\n\n tmp = new_tmp();\n\n tcg_gen_movi_i32(tmp, 0);\n\n } else if (op != 0xf) { /* mvn doesn't read its first operand */\n\n tmp = load_reg(s, rd);\n\n } else {\n\n TCGV_UNUSED(tmp);\n\n }\n\n\n\n tmp2 = load_reg(s, rm);\n\n switch (op) {\n\n case 0x0: /* and */\n\n tcg_gen_and_i32(tmp, tmp, tmp2);\n\n if (!s->condexec_mask)\n\n gen_logic_CC(tmp);\n\n break;\n\n case 0x1: /* eor */\n\n tcg_gen_xor_i32(tmp, tmp, tmp2);\n\n if (!s->condexec_mask)\n\n gen_logic_CC(tmp);\n\n break;\n\n case 0x2: /* lsl */\n\n if (s->condexec_mask) {\n\n gen_helper_shl(tmp2, tmp2, tmp);\n\n } else {\n\n gen_helper_shl_cc(tmp2, tmp2, tmp);\n\n gen_logic_CC(tmp2);\n\n }\n\n break;\n\n case 0x3: /* lsr */\n\n if (s->condexec_mask) {\n\n gen_helper_shr(tmp2, tmp2, tmp);\n\n } else {\n\n gen_helper_shr_cc(tmp2, tmp2, tmp);\n\n gen_logic_CC(tmp2);\n\n }\n\n break;\n\n case 0x4: /* asr */\n\n if (s->condexec_mask) {\n\n gen_helper_sar(tmp2, tmp2, tmp);\n\n } else {\n\n gen_helper_sar_cc(tmp2, tmp2, tmp);\n\n gen_logic_CC(tmp2);\n\n }\n\n break;\n\n case 0x5: /* adc */\n\n if (s->condexec_mask)\n\n gen_adc(tmp, tmp2);\n\n else\n\n gen_helper_adc_cc(tmp, tmp, tmp2);\n\n break;\n\n case 0x6: /* sbc */\n\n if (s->condexec_mask)\n\n gen_sub_carry(tmp, tmp, tmp2);\n\n else\n\n gen_helper_sbc_cc(tmp, tmp, tmp2);\n\n break;\n\n case 0x7: /* ror */\n\n if (s->condexec_mask) {\n\n tcg_gen_andi_i32(tmp, tmp, 0x1f);\n\n tcg_gen_rotr_i32(tmp2, tmp2, tmp);\n\n } else {\n\n gen_helper_ror_cc(tmp2, tmp2, tmp);\n\n gen_logic_CC(tmp2);\n\n }\n\n break;\n\n case 0x8: /* tst */\n\n tcg_gen_and_i32(tmp, tmp, tmp2);\n\n gen_logic_CC(tmp);\n\n rd = 16;\n\n break;\n\n case 0x9: /* neg */\n\n if (s->condexec_mask)\n\n tcg_gen_neg_i32(tmp, tmp2);\n\n else\n\n gen_helper_sub_cc(tmp, tmp, tmp2);\n\n break;\n\n case 0xa: /* cmp */\n\n gen_helper_sub_cc(tmp, tmp, tmp2);\n\n rd = 16;\n\n break;\n\n case 0xb: /* cmn */\n\n gen_helper_add_cc(tmp, tmp, tmp2);\n\n rd = 16;\n\n break;\n\n case 0xc: /* orr */\n\n tcg_gen_or_i32(tmp, tmp, tmp2);\n\n if (!s->condexec_mask)\n\n gen_logic_CC(tmp);\n\n break;\n\n case 0xd: /* mul */\n\n tcg_gen_mul_i32(tmp, tmp, tmp2);\n\n if (!s->condexec_mask)\n\n gen_logic_CC(tmp);\n\n break;\n\n case 0xe: /* bic */\n\n tcg_gen_andc_i32(tmp, tmp, tmp2);\n\n if (!s->condexec_mask)\n\n gen_logic_CC(tmp);\n\n break;\n\n case 0xf: /* mvn */\n\n tcg_gen_not_i32(tmp2, tmp2);\n\n if (!s->condexec_mask)\n\n gen_logic_CC(tmp2);\n\n val = 1;\n\n rm = rd;\n\n break;\n\n }\n\n if (rd != 16) {\n\n if (val) {\n\n store_reg(s, rm, tmp2);\n\n if (op != 0xf)\n\n dead_tmp(tmp);\n\n } else {\n\n store_reg(s, rd, tmp);\n\n dead_tmp(tmp2);\n\n }\n\n } else {\n\n dead_tmp(tmp);\n\n dead_tmp(tmp2);\n\n }\n\n break;\n\n\n\n case 5:\n\n /* load/store register offset. */\n\n rd = insn & 7;\n\n rn = (insn >> 3) & 7;\n\n rm = (insn >> 6) & 7;\n\n op = (insn >> 9) & 7;\n\n addr = load_reg(s, rn);\n\n tmp = load_reg(s, rm);\n\n tcg_gen_add_i32(addr, addr, tmp);\n\n dead_tmp(tmp);\n\n\n\n if (op < 3) /* store */\n\n tmp = load_reg(s, rd);\n\n\n\n switch (op) {\n\n case 0: /* str */\n\n gen_st32(tmp, addr, IS_USER(s));\n\n break;\n\n case 1: /* strh */\n\n gen_st16(tmp, addr, IS_USER(s));\n\n break;\n\n case 2: /* strb */\n\n gen_st8(tmp, addr, IS_USER(s));\n\n break;\n\n case 3: /* ldrsb */\n\n tmp = gen_ld8s(addr, IS_USER(s));\n\n break;\n\n case 4: /* ldr */\n\n tmp = gen_ld32(addr, IS_USER(s));\n\n break;\n\n case 5: /* ldrh */\n\n tmp = gen_ld16u(addr, IS_USER(s));\n\n break;\n\n case 6: /* ldrb */\n\n tmp = gen_ld8u(addr, IS_USER(s));\n\n break;\n\n case 7: /* ldrsh */\n\n tmp = gen_ld16s(addr, IS_USER(s));\n\n break;\n\n }\n\n if (op >= 3) /* load */\n\n store_reg(s, rd, tmp);\n\n dead_tmp(addr);\n\n break;\n\n\n\n case 6:\n\n /* load/store word immediate offset */\n\n rd = insn & 7;\n\n rn = (insn >> 3) & 7;\n\n addr = load_reg(s, rn);\n\n val = (insn >> 4) & 0x7c;\n\n tcg_gen_addi_i32(addr, addr, val);\n\n\n\n if (insn & (1 << 11)) {\n\n /* load */\n\n tmp = gen_ld32(addr, IS_USER(s));\n\n store_reg(s, rd, tmp);\n\n } else {\n\n /* store */\n\n tmp = load_reg(s, rd);\n\n gen_st32(tmp, addr, IS_USER(s));\n\n }\n\n dead_tmp(addr);\n\n break;\n\n\n\n case 7:\n\n /* load/store byte immediate offset */\n\n rd = insn & 7;\n\n rn = (insn >> 3) & 7;\n\n addr = load_reg(s, rn);\n\n val = (insn >> 6) & 0x1f;\n\n tcg_gen_addi_i32(addr, addr, val);\n\n\n\n if (insn & (1 << 11)) {\n\n /* load */\n\n tmp = gen_ld8u(addr, IS_USER(s));\n\n store_reg(s, rd, tmp);\n\n } else {\n\n /* store */\n\n tmp = load_reg(s, rd);\n\n gen_st8(tmp, addr, IS_USER(s));\n\n }\n\n dead_tmp(addr);\n\n break;\n\n\n\n case 8:\n\n /* load/store halfword immediate offset */\n\n rd = insn & 7;\n\n rn = (insn >> 3) & 7;\n\n addr = load_reg(s, rn);\n\n val = (insn >> 5) & 0x3e;\n\n tcg_gen_addi_i32(addr, addr, val);\n\n\n\n if (insn & (1 << 11)) {\n\n /* load */\n\n tmp = gen_ld16u(addr, IS_USER(s));\n\n store_reg(s, rd, tmp);\n\n } else {\n\n /* store */\n\n tmp = load_reg(s, rd);\n\n gen_st16(tmp, addr, IS_USER(s));\n\n }\n\n dead_tmp(addr);\n\n break;\n\n\n\n case 9:\n\n /* load/store from stack */\n\n rd = (insn >> 8) & 7;\n\n addr = load_reg(s, 13);\n\n val = (insn & 0xff) * 4;\n\n tcg_gen_addi_i32(addr, addr, val);\n\n\n\n if (insn & (1 << 11)) {\n\n /* load */\n\n tmp = gen_ld32(addr, IS_USER(s));\n\n store_reg(s, rd, tmp);\n\n } else {\n\n /* store */\n\n tmp = load_reg(s, rd);\n\n gen_st32(tmp, addr, IS_USER(s));\n\n }\n\n dead_tmp(addr);\n\n break;\n\n\n\n case 10:\n\n /* add to high reg */\n\n rd = (insn >> 8) & 7;\n\n if (insn & (1 << 11)) {\n\n /* SP */\n\n tmp = load_reg(s, 13);\n\n } else {\n\n /* PC. bit 1 is ignored. */\n\n tmp = new_tmp();\n\n tcg_gen_movi_i32(tmp, (s->pc + 2) & ~(uint32_t)2);\n\n }\n\n val = (insn & 0xff) * 4;\n\n tcg_gen_addi_i32(tmp, tmp, val);\n\n store_reg(s, rd, tmp);\n\n break;\n\n\n\n case 11:\n\n /* misc */\n\n op = (insn >> 8) & 0xf;\n\n switch (op) {\n\n case 0:\n\n /* adjust stack pointer */\n\n tmp = load_reg(s, 13);\n\n val = (insn & 0x7f) * 4;\n\n if (insn & (1 << 7))\n\n val = -(int32_t)val;\n\n tcg_gen_addi_i32(tmp, tmp, val);\n\n store_reg(s, 13, tmp);\n\n break;\n\n\n\n case 2: /* sign/zero extend. */\n\n ARCH(6);\n\n rd = insn & 7;\n\n rm = (insn >> 3) & 7;\n\n tmp = load_reg(s, rm);\n\n switch ((insn >> 6) & 3) {\n\n case 0: gen_sxth(tmp); break;\n\n case 1: gen_sxtb(tmp); break;\n\n case 2: gen_uxth(tmp); break;\n\n case 3: gen_uxtb(tmp); break;\n\n }\n\n store_reg(s, rd, tmp);\n\n break;\n\n case 4: case 5: case 0xc: case 0xd:\n\n /* push/pop */\n\n addr = load_reg(s, 13);\n\n if (insn & (1 << 8))\n\n offset = 4;\n\n else\n\n offset = 0;\n\n for (i = 0; i < 8; i++) {\n\n if (insn & (1 << i))\n\n offset += 4;\n\n }\n\n if ((insn & (1 << 11)) == 0) {\n\n tcg_gen_addi_i32(addr, addr, -offset);\n\n }\n\n for (i = 0; i < 8; i++) {\n\n if (insn & (1 << i)) {\n\n if (insn & (1 << 11)) {\n\n /* pop */\n\n tmp = gen_ld32(addr, IS_USER(s));\n\n store_reg(s, i, tmp);\n\n } else {\n\n /* push */\n\n tmp = load_reg(s, i);\n\n gen_st32(tmp, addr, IS_USER(s));\n\n }\n\n /* advance to the next address. */\n\n tcg_gen_addi_i32(addr, addr, 4);\n\n }\n\n }\n\n TCGV_UNUSED(tmp);\n\n if (insn & (1 << 8)) {\n\n if (insn & (1 << 11)) {\n\n /* pop pc */\n\n tmp = gen_ld32(addr, IS_USER(s));\n\n /* don't set the pc until the rest of the instruction\n\n has completed */\n\n } else {\n\n /* push lr */\n\n tmp = load_reg(s, 14);\n\n gen_st32(tmp, addr, IS_USER(s));\n\n }\n\n tcg_gen_addi_i32(addr, addr, 4);\n\n }\n\n if ((insn & (1 << 11)) == 0) {\n\n tcg_gen_addi_i32(addr, addr, -offset);\n\n }\n\n /* write back the new stack pointer */\n\n store_reg(s, 13, addr);\n\n /* set the new PC value */\n\n if ((insn & 0x0900) == 0x0900)\n\n gen_bx(s, tmp);\n\n break;\n\n\n\n case 1: case 3: case 9: case 11: /* czb */\n\n rm = insn & 7;\n\n tmp = load_reg(s, rm);\n\n s->condlabel = gen_new_label();\n\n s->condjmp = 1;\n\n if (insn & (1 << 11))\n\n tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, s->condlabel);\n\n else\n\n tcg_gen_brcondi_i32(TCG_COND_NE, tmp, 0, s->condlabel);\n\n dead_tmp(tmp);\n\n offset = ((insn & 0xf8) >> 2) | (insn & 0x200) >> 3;\n\n val = (uint32_t)s->pc + 2;\n\n val += offset;\n\n gen_jmp(s, val);\n\n break;\n\n\n\n case 15: /* IT, nop-hint. */\n\n if ((insn & 0xf) == 0) {\n\n gen_nop_hint(s, (insn >> 4) & 0xf);\n\n break;\n\n }\n\n /* If Then. */\n\n s->condexec_cond = (insn >> 4) & 0xe;\n\n s->condexec_mask = insn & 0x1f;\n\n /* No actual code generated for this insn, just setup state. */\n\n break;\n\n\n\n case 0xe: /* bkpt */\n\n gen_exception_insn(s, 2, EXCP_BKPT);\n\n break;\n\n\n\n case 0xa: /* rev */\n\n ARCH(6);\n\n rn = (insn >> 3) & 0x7;\n\n rd = insn & 0x7;\n\n tmp = load_reg(s, rn);\n\n switch ((insn >> 6) & 3) {\n\n case 0: tcg_gen_bswap32_i32(tmp, tmp); break;\n\n case 1: gen_rev16(tmp); break;\n\n case 3: gen_revsh(tmp); break;\n\n default: goto illegal_op;\n\n }\n\n store_reg(s, rd, tmp);\n\n break;\n\n\n\n case 6: /* cps */\n\n ARCH(6);\n\n if (IS_USER(s))\n\n break;\n\n if (IS_M(env)) {\n\n tmp = tcg_const_i32((insn & (1 << 4)) != 0);\n\n /* PRIMASK */\n\n if (insn & 1) {\n\n addr = tcg_const_i32(16);\n\n gen_helper_v7m_msr(cpu_env, addr, tmp);\n\n tcg_temp_free_i32(addr);\n\n }\n\n /* FAULTMASK */\n\n if (insn & 2) {\n\n addr = tcg_const_i32(17);\n\n gen_helper_v7m_msr(cpu_env, addr, tmp);\n\n tcg_temp_free_i32(addr);\n\n }\n\n tcg_temp_free_i32(tmp);\n\n gen_lookup_tb(s);\n\n } else {\n\n if (insn & (1 << 4))\n\n shift = CPSR_A | CPSR_I | CPSR_F;\n\n else\n\n shift = 0;\n\n gen_set_psr_im(s, ((insn & 7) << 6), 0, shift);\n\n }\n\n break;\n\n\n\n default:\n\n goto undef;\n\n }\n\n break;\n\n\n\n case 12:\n\n /* load/store multiple */\n\n rn = (insn >> 8) & 0x7;\n\n addr = load_reg(s, rn);\n\n for (i = 0; i < 8; i++) {\n\n if (insn & (1 << i)) {\n\n if (insn & (1 << 11)) {\n\n /* load */\n\n tmp = gen_ld32(addr, IS_USER(s));\n\n store_reg(s, i, tmp);\n\n } else {\n\n /* store */\n\n tmp = load_reg(s, i);\n\n gen_st32(tmp, addr, IS_USER(s));\n\n }\n\n /* advance to the next address */\n\n tcg_gen_addi_i32(addr, addr, 4);\n\n }\n\n }\n\n /* Base register writeback. */\n\n if ((insn & (1 << rn)) == 0) {\n\n store_reg(s, rn, addr);\n\n } else {\n\n dead_tmp(addr);\n\n }\n\n break;\n\n\n\n case 13:\n\n /* conditional branch or swi */\n\n cond = (insn >> 8) & 0xf;\n\n if (cond == 0xe)\n\n goto undef;\n\n\n\n if (cond == 0xf) {\n\n /* swi */\n\n gen_set_pc_im(s->pc);\n\n s->is_jmp = DISAS_SWI;\n\n break;\n\n }\n\n /* generate a conditional jump to next instruction */\n\n s->condlabel = gen_new_label();\n\n gen_test_cc(cond ^ 1, s->condlabel);\n\n s->condjmp = 1;\n\n\n\n /* jump to the offset */\n\n val = (uint32_t)s->pc + 2;\n\n offset = ((int32_t)insn << 24) >> 24;\n\n val += offset << 1;\n\n gen_jmp(s, val);\n\n break;\n\n\n\n case 14:\n\n if (insn & (1 << 11)) {\n\n if (disas_thumb2_insn(env, s, insn))\n\n goto undef32;\n\n break;\n\n }\n\n /* unconditional branch */\n\n val = (uint32_t)s->pc;\n\n offset = ((int32_t)insn << 21) >> 21;\n\n val += (offset << 1) + 2;\n\n gen_jmp(s, val);\n\n break;\n\n\n\n case 15:\n\n if (disas_thumb2_insn(env, s, insn))\n\n goto undef32;\n\n break;\n\n }\n\n return;\n\nundef32:\n\n gen_exception_insn(s, 4, EXCP_UDEF);\n\n return;\n\nillegal_op:\n\nundef:\n\n gen_exception_insn(s, 2, EXCP_UDEF);\n\n}\n", + "output": "1", + "index": 3894 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int cine_read_header(AVFormatContext *avctx)\n\n{\n\n AVIOContext *pb = avctx->pb;\n\n AVStream *st;\n\n unsigned int version, compression, offImageHeader, offSetup, offImageOffsets, biBitCount, length, CFA;\n\n int vflip;\n\n char *description;\n\n uint64_t i;\n\n\n\n st = avformat_new_stream(avctx, NULL);\n\n if (!st)\n\n return AVERROR(ENOMEM);\n\n st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;\n\n st->codecpar->codec_id = AV_CODEC_ID_RAWVIDEO;\n\n st->codecpar->codec_tag = 0;\n\n\n\n /* CINEFILEHEADER structure */\n\n avio_skip(pb, 4); // Type, Headersize\n\n\n\n compression = avio_rl16(pb);\n\n version = avio_rl16(pb);\n\n if (version != 1) {\n\n avpriv_request_sample(avctx, \"unknown version %i\", version);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n avio_skip(pb, 12); // FirstMovieImage, TotalImageCount, FirstImageNumber\n\n\n\n st->duration = avio_rl32(pb);\n\n offImageHeader = avio_rl32(pb);\n\n offSetup = avio_rl32(pb);\n\n offImageOffsets = avio_rl32(pb);\n\n\n\n avio_skip(pb, 8); // TriggerTime\n\n\n\n /* BITMAPINFOHEADER structure */\n\n avio_seek(pb, offImageHeader, SEEK_SET);\n\n avio_skip(pb, 4); //biSize\n\n st->codecpar->width = avio_rl32(pb);\n\n st->codecpar->height = avio_rl32(pb);\n\n\n\n if (avio_rl16(pb) != 1) // biPlanes\n\n return AVERROR_INVALIDDATA;\n\n\n\n biBitCount = avio_rl16(pb);\n\n if (biBitCount != 8 && biBitCount != 16 && biBitCount != 24 && biBitCount != 48) {\n\n avpriv_request_sample(avctx, \"unsupported biBitCount %i\", biBitCount);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n switch (avio_rl32(pb)) {\n\n case BMP_RGB:\n\n vflip = 0;\n\n break;\n\n case 0x100: /* BI_PACKED */\n\n st->codecpar->codec_tag = MKTAG('B', 'I', 'T', 0);\n\n vflip = 1;\n\n break;\n\n default:\n\n avpriv_request_sample(avctx, \"unknown bitmap compression\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n avio_skip(pb, 4); // biSizeImage\n\n\n\n /* parse SETUP structure */\n\n avio_seek(pb, offSetup, SEEK_SET);\n\n avio_skip(pb, 140); // FrameRatae16 .. descriptionOld\n\n if (avio_rl16(pb) != 0x5453)\n\n return AVERROR_INVALIDDATA;\n\n length = avio_rl16(pb);\n\n if (length < 0x163C) {\n\n avpriv_request_sample(avctx, \"short SETUP header\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n avio_skip(pb, 616); // Binning .. bFlipH\n\n if (!avio_rl32(pb) ^ vflip) {\n\n st->codecpar->extradata = av_strdup(\"BottomUp\");\n\n st->codecpar->extradata_size = 9;\n\n }\n\n\n\n avio_skip(pb, 4); // Grid\n\n\n\n avpriv_set_pts_info(st, 64, 1, avio_rl32(pb));\n\n\n\n avio_skip(pb, 20); // Shutter .. bEnableColor\n\n\n\n set_metadata_int(&st->metadata, \"camera_version\", avio_rl32(pb), 0);\n\n set_metadata_int(&st->metadata, \"firmware_version\", avio_rl32(pb), 0);\n\n set_metadata_int(&st->metadata, \"software_version\", avio_rl32(pb), 0);\n\n set_metadata_int(&st->metadata, \"recording_timezone\", avio_rl32(pb), 0);\n\n\n\n CFA = avio_rl32(pb);\n\n\n\n set_metadata_int(&st->metadata, \"brightness\", avio_rl32(pb), 1);\n\n set_metadata_int(&st->metadata, \"contrast\", avio_rl32(pb), 1);\n\n set_metadata_int(&st->metadata, \"gamma\", avio_rl32(pb), 1);\n\n\n\n avio_skip(pb, 12 + 16); // Reserved1 .. AutoExpRect\n\n set_metadata_float(&st->metadata, \"wbgain[0].r\", av_int2float(avio_rl32(pb)), 1);\n\n set_metadata_float(&st->metadata, \"wbgain[0].b\", av_int2float(avio_rl32(pb)), 1);\n\n avio_skip(pb, 36); // WBGain[1].. WBView\n\n\n\n st->codecpar->bits_per_coded_sample = avio_rl32(pb);\n\n\n\n if (compression == CC_RGB) {\n\n if (biBitCount == 8) {\n\n st->codecpar->format = AV_PIX_FMT_GRAY8;\n\n } else if (biBitCount == 16) {\n\n st->codecpar->format = AV_PIX_FMT_GRAY16LE;\n\n } else if (biBitCount == 24) {\n\n st->codecpar->format = AV_PIX_FMT_BGR24;\n\n } else if (biBitCount == 48) {\n\n st->codecpar->format = AV_PIX_FMT_BGR48LE;\n\n } else {\n\n avpriv_request_sample(avctx, \"unsupported biBitCount %i\", biBitCount);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n } else if (compression == CC_UNINT) {\n\n switch (CFA & 0xFFFFFF) {\n\n case CFA_BAYER:\n\n if (biBitCount == 8) {\n\n st->codecpar->format = AV_PIX_FMT_BAYER_GBRG8;\n\n } else if (biBitCount == 16) {\n\n st->codecpar->format = AV_PIX_FMT_BAYER_GBRG16LE;\n\n } else {\n\n avpriv_request_sample(avctx, \"unsupported biBitCount %i\", biBitCount);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n break;\n\n case CFA_BAYERFLIP:\n\n if (biBitCount == 8) {\n\n st->codecpar->format = AV_PIX_FMT_BAYER_RGGB8;\n\n } else if (biBitCount == 16) {\n\n st->codecpar->format = AV_PIX_FMT_BAYER_RGGB16LE;\n\n } else {\n\n avpriv_request_sample(avctx, \"unsupported biBitCount %i\", biBitCount);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n break;\n\n default:\n\n avpriv_request_sample(avctx, \"unsupported Color Field Array (CFA) %i\", CFA & 0xFFFFFF);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n } else { //CC_LEAD\n\n avpriv_request_sample(avctx, \"unsupported compression %i\", compression);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n avio_skip(pb, 668); // Conv8Min ... Sensor\n\n\n\n set_metadata_int(&st->metadata, \"shutter_ns\", avio_rl32(pb), 0);\n\n\n\n avio_skip(pb, 24); // EDRShutterNs ... ImHeightAcq\n\n\n\n#define DESCRIPTION_SIZE 4096\n\n description = av_malloc(DESCRIPTION_SIZE + 1);\n\n if (!description)\n\n return AVERROR(ENOMEM);\n\n i = avio_get_str(pb, DESCRIPTION_SIZE, description, DESCRIPTION_SIZE + 1);\n\n if (i < DESCRIPTION_SIZE)\n\n avio_skip(pb, DESCRIPTION_SIZE - i);\n\n if (description[0])\n\n av_dict_set(&st->metadata, \"description\", description, AV_DICT_DONT_STRDUP_VAL);\n\n else\n\n av_free(description);\n\n\n\n avio_skip(pb, 1176); // RisingEdge ... cmUser\n\n\n\n set_metadata_int(&st->metadata, \"enable_crop\", avio_rl32(pb), 1);\n\n set_metadata_int(&st->metadata, \"crop_left\", avio_rl32(pb), 1);\n\n set_metadata_int(&st->metadata, \"crop_top\", avio_rl32(pb), 1);\n\n set_metadata_int(&st->metadata, \"crop_right\", avio_rl32(pb), 1);\n\n set_metadata_int(&st->metadata, \"crop_bottom\", avio_rl32(pb), 1);\n\n\n\n /* parse image offsets */\n\n avio_seek(pb, offImageOffsets, SEEK_SET);\n\n for (i = 0; i < st->duration; i++)\n\n av_add_index_entry(st, avio_rl64(pb), i, 0, 0, AVINDEX_KEYFRAME);\n\n\n\n return 0;\n\n}\n", + "output": "1", + "index": 2312 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static av_cold int dnxhd_encode_init(AVCodecContext *avctx)\n\n{\n\n DNXHDEncContext *ctx = avctx->priv_data;\n\n int i, index, bit_depth, ret;\n\n\n\n switch (avctx->pix_fmt) {\n\n case AV_PIX_FMT_YUV422P:\n\n bit_depth = 8;\n\n break;\n\n case AV_PIX_FMT_YUV422P10:\n\n bit_depth = 10;\n\n break;\n\n default:\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"pixel format is incompatible with DNxHD\\n\");\n\n return AVERROR(EINVAL);\n\n }\n\n\n\n ctx->cid = ff_dnxhd_find_cid(avctx, bit_depth);\n\n if (!ctx->cid) {\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"video parameters incompatible with DNxHD\\n\");\n\n return AVERROR(EINVAL);\n\n }\n\n av_log(avctx, AV_LOG_DEBUG, \"cid %d\\n\", ctx->cid);\n\n\n\n index = ff_dnxhd_get_cid_table(ctx->cid);\n\n if (index < 0)\n\n return index;\n\n ctx->cid_table = &ff_dnxhd_cid_table[index];\n\n\n\n ctx->m.avctx = avctx;\n\n ctx->m.mb_intra = 1;\n\n ctx->m.h263_aic = 1;\n\n\n\n avctx->bits_per_raw_sample = ctx->cid_table->bit_depth;\n\n\n\n ff_blockdsp_init(&ctx->bdsp, avctx);\n\n ff_fdctdsp_init(&ctx->m.fdsp, avctx);\n\n ff_mpv_idct_init(&ctx->m);\n\n ff_mpegvideoencdsp_init(&ctx->m.mpvencdsp, avctx);\n\n ff_pixblockdsp_init(&ctx->m.pdsp, avctx);\n\n if (!ctx->m.dct_quantize)\n\n ctx->m.dct_quantize = ff_dct_quantize_c;\n\n\n\n if (ctx->cid_table->bit_depth == 10) {\n\n ctx->m.dct_quantize = dnxhd_10bit_dct_quantize;\n\n ctx->get_pixels_8x4_sym = dnxhd_10bit_get_pixels_8x4_sym;\n\n ctx->block_width_l2 = 4;\n\n } else {\n\n ctx->get_pixels_8x4_sym = dnxhd_8bit_get_pixels_8x4_sym;\n\n ctx->block_width_l2 = 3;\n\n }\n\n\n\n if (ARCH_X86)\n\n ff_dnxhdenc_init_x86(ctx);\n\n\n\n ctx->m.mb_height = (avctx->height + 15) / 16;\n\n ctx->m.mb_width = (avctx->width + 15) / 16;\n\n\n\n if (avctx->flags & AV_CODEC_FLAG_INTERLACED_DCT) {\n\n ctx->interlaced = 1;\n\n ctx->m.mb_height /= 2;\n\n }\n\n\n\n ctx->m.mb_num = ctx->m.mb_height * ctx->m.mb_width;\n\n\n\n#if FF_API_QUANT_BIAS\n\nFF_DISABLE_DEPRECATION_WARNINGS\n\n if (ctx->intra_quant_bias == FF_DEFAULT_QUANT_BIAS &&\n\n avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)\n\n ctx->intra_quant_bias = avctx->intra_quant_bias;\n\nFF_ENABLE_DEPRECATION_WARNINGS\n\n#endif\n\n // XXX tune lbias/cbias\n\n if ((ret = dnxhd_init_qmat(ctx, ctx->intra_quant_bias, 0)) < 0)\n\n return ret;\n\n\n\n /* Avid Nitris hardware decoder requires a minimum amount of padding\n\n * in the coding unit payload */\n\n if (ctx->nitris_compat)\n\n ctx->min_padding = 1600;\n\n\n\n if ((ret = dnxhd_init_vlc(ctx)) < 0)\n\n return ret;\n\n if ((ret = dnxhd_init_rc(ctx)) < 0)\n\n return ret;\n\n\n\n FF_ALLOCZ_OR_GOTO(ctx->m.avctx, ctx->slice_size,\n\n ctx->m.mb_height * sizeof(uint32_t), fail);\n\n FF_ALLOCZ_OR_GOTO(ctx->m.avctx, ctx->slice_offs,\n\n ctx->m.mb_height * sizeof(uint32_t), fail);\n\n FF_ALLOCZ_OR_GOTO(ctx->m.avctx, ctx->mb_bits,\n\n ctx->m.mb_num * sizeof(uint16_t), fail);\n\n FF_ALLOCZ_OR_GOTO(ctx->m.avctx, ctx->mb_qscale,\n\n ctx->m.mb_num * sizeof(uint8_t), fail);\n\n\n\n#if FF_API_CODED_FRAME\n\nFF_DISABLE_DEPRECATION_WARNINGS\n\n avctx->coded_frame->key_frame = 1;\n\n avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;\n\nFF_ENABLE_DEPRECATION_WARNINGS\n\n#endif\n\n\n\n if (avctx->thread_count > MAX_THREADS) {\n\n av_log(avctx, AV_LOG_ERROR, \"too many threads\\n\");\n\n return AVERROR(EINVAL);\n\n }\n\n\n\n ctx->thread[0] = ctx;\n\n for (i = 1; i < avctx->thread_count; i++) {\n\n ctx->thread[i] = av_malloc(sizeof(DNXHDEncContext));\n\n memcpy(ctx->thread[i], ctx, sizeof(DNXHDEncContext));\n\n }\n\n\n\n return 0;\n\nfail: // for FF_ALLOCZ_OR_GOTO\n\n return AVERROR(ENOMEM);\n\n}\n", + "output": "0", + "index": 5539 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int mpeg4_decode_mb(MpegEncContext *s, int16_t block[6][64])\n\n{\n\n Mpeg4DecContext *ctx = (Mpeg4DecContext *)s;\n\n int cbpc, cbpy, i, cbp, pred_x, pred_y, mx, my, dquant;\n\n int16_t *mot_val;\n\n static const int8_t quant_tab[4] = { -1, -2, 1, 2 };\n\n const int xy = s->mb_x + s->mb_y * s->mb_stride;\n\n\n\n av_assert2(s->h263_pred);\n\n\n\n if (s->pict_type == AV_PICTURE_TYPE_P ||\n\n s->pict_type == AV_PICTURE_TYPE_S) {\n\n do {\n\n if (get_bits1(&s->gb)) {\n\n /* skip mb */\n\n s->mb_intra = 0;\n\n for (i = 0; i < 6; i++)\n\n s->block_last_index[i] = -1;\n\n s->mv_dir = MV_DIR_FORWARD;\n\n s->mv_type = MV_TYPE_16X16;\n\n if (s->pict_type == AV_PICTURE_TYPE_S &&\n\n ctx->vol_sprite_usage == GMC_SPRITE) {\n\n s->current_picture.mb_type[xy] = MB_TYPE_SKIP |\n\n MB_TYPE_GMC |\n\n MB_TYPE_16x16 |\n\n MB_TYPE_L0;\n\n s->mcsel = 1;\n\n s->mv[0][0][0] = get_amv(ctx, 0);\n\n s->mv[0][0][1] = get_amv(ctx, 1);\n\n s->mb_skipped = 0;\n\n } else {\n\n s->current_picture.mb_type[xy] = MB_TYPE_SKIP |\n\n MB_TYPE_16x16 |\n\n MB_TYPE_L0;\n\n s->mcsel = 0;\n\n s->mv[0][0][0] = 0;\n\n s->mv[0][0][1] = 0;\n\n s->mb_skipped = 1;\n\n\n goto end;\n\n\n cbpc = get_vlc2(&s->gb, ff_h263_inter_MCBPC_vlc.table, INTER_MCBPC_VLC_BITS, 2);\n\n if (cbpc < 0) {\n\n\n \"mcbpc damaged at %d %d\\n\", s->mb_x, s->mb_y);\n\n return -1;\n\n\n } while (cbpc == 20);\n\n\n\n s->bdsp.clear_blocks(s->block[0]);\n\n dquant = cbpc & 8;\n\n s->mb_intra = ((cbpc & 4) != 0);\n\n if (s->mb_intra)\n\n goto intra;\n\n\n\n if (s->pict_type == AV_PICTURE_TYPE_S &&\n\n ctx->vol_sprite_usage == GMC_SPRITE && (cbpc & 16) == 0)\n\n s->mcsel = get_bits1(&s->gb);\n\n else\n\n s->mcsel = 0;\n\n cbpy = get_vlc2(&s->gb, ff_h263_cbpy_vlc.table, CBPY_VLC_BITS, 1) ^ 0x0F;\n\n\n\n\n\n\n\n\n cbp = (cbpc & 3) | (cbpy << 2);\n\n if (dquant)\n\n ff_set_qscale(s, s->qscale + quant_tab[get_bits(&s->gb, 2)]);\n\n if ((!s->progressive_sequence) &&\n\n (cbp || (s->workaround_bugs & FF_BUG_XVID_ILACE)))\n\n s->interlaced_dct = get_bits1(&s->gb);\n\n\n\n s->mv_dir = MV_DIR_FORWARD;\n\n if ((cbpc & 16) == 0) {\n\n if (s->mcsel) {\n\n s->current_picture.mb_type[xy] = MB_TYPE_GMC |\n\n MB_TYPE_16x16 |\n\n MB_TYPE_L0;\n\n /* 16x16 global motion prediction */\n\n s->mv_type = MV_TYPE_16X16;\n\n mx = get_amv(ctx, 0);\n\n my = get_amv(ctx, 1);\n\n s->mv[0][0][0] = mx;\n\n s->mv[0][0][1] = my;\n\n } else if ((!s->progressive_sequence) && get_bits1(&s->gb)) {\n\n s->current_picture.mb_type[xy] = MB_TYPE_16x8 |\n\n MB_TYPE_L0 |\n\n MB_TYPE_INTERLACED;\n\n /* 16x8 field motion prediction */\n\n s->mv_type = MV_TYPE_FIELD;\n\n\n\n s->field_select[0][0] = get_bits1(&s->gb);\n\n s->field_select[0][1] = get_bits1(&s->gb);\n\n\n\n ff_h263_pred_motion(s, 0, 0, &pred_x, &pred_y);\n\n\n\n for (i = 0; i < 2; i++) {\n\n mx = ff_h263_decode_motion(s, pred_x, s->f_code);\n\n if (mx >= 0xffff)\n\n return -1;\n\n\n\n my = ff_h263_decode_motion(s, pred_y / 2, s->f_code);\n\n if (my >= 0xffff)\n\n return -1;\n\n\n\n s->mv[0][i][0] = mx;\n\n s->mv[0][i][1] = my;\n\n\n } else {\n\n s->current_picture.mb_type[xy] = MB_TYPE_16x16 | MB_TYPE_L0;\n\n /* 16x16 motion prediction */\n\n s->mv_type = MV_TYPE_16X16;\n\n ff_h263_pred_motion(s, 0, 0, &pred_x, &pred_y);\n\n mx = ff_h263_decode_motion(s, pred_x, s->f_code);\n\n\n\n if (mx >= 0xffff)\n\n return -1;\n\n\n\n my = ff_h263_decode_motion(s, pred_y, s->f_code);\n\n\n\n if (my >= 0xffff)\n\n return -1;\n\n s->mv[0][0][0] = mx;\n\n s->mv[0][0][1] = my;\n\n\n } else {\n\n s->current_picture.mb_type[xy] = MB_TYPE_8x8 | MB_TYPE_L0;\n\n s->mv_type = MV_TYPE_8X8;\n\n for (i = 0; i < 4; i++) {\n\n mot_val = ff_h263_pred_motion(s, i, 0, &pred_x, &pred_y);\n\n mx = ff_h263_decode_motion(s, pred_x, s->f_code);\n\n if (mx >= 0xffff)\n\n return -1;\n\n\n\n my = ff_h263_decode_motion(s, pred_y, s->f_code);\n\n if (my >= 0xffff)\n\n return -1;\n\n s->mv[0][i][0] = mx;\n\n s->mv[0][i][1] = my;\n\n mot_val[0] = mx;\n\n mot_val[1] = my;\n\n\n\n } else if (s->pict_type == AV_PICTURE_TYPE_B) {\n\n int modb1; // first bit of modb\n\n int modb2; // second bit of modb\n\n int mb_type;\n\n\n\n s->mb_intra = 0; // B-frames never contain intra blocks\n\n s->mcsel = 0; // ... true gmc blocks\n\n\n\n if (s->mb_x == 0) {\n\n for (i = 0; i < 2; i++) {\n\n s->last_mv[i][0][0] =\n\n s->last_mv[i][0][1] =\n\n s->last_mv[i][1][0] =\n\n s->last_mv[i][1][1] = 0;\n\n\n\n\n ff_thread_await_progress(&s->next_picture_ptr->tf, s->mb_y, 0);\n\n\n\n\n /* if we skipped it in the future P Frame than skip it now too */\n\n s->mb_skipped = s->next_picture.mbskip_table[s->mb_y * s->mb_stride + s->mb_x]; // Note, skiptab=0 if last was GMC\n\n\n\n if (s->mb_skipped) {\n\n /* skip mb */\n\n for (i = 0; i < 6; i++)\n\n s->block_last_index[i] = -1;\n\n\n\n s->mv_dir = MV_DIR_FORWARD;\n\n s->mv_type = MV_TYPE_16X16;\n\n s->mv[0][0][0] =\n\n s->mv[0][0][1] =\n\n s->mv[1][0][0] =\n\n s->mv[1][0][1] = 0;\n\n s->current_picture.mb_type[xy] = MB_TYPE_SKIP |\n\n MB_TYPE_16x16 |\n\n MB_TYPE_L0;\n\n goto end;\n\n\n\n\n modb1 = get_bits1(&s->gb);\n\n if (modb1) {\n\n // like MB_TYPE_B_DIRECT but no vectors coded\n\n mb_type = MB_TYPE_DIRECT2 | MB_TYPE_SKIP | MB_TYPE_L0L1;\n\n cbp = 0;\n\n } else {\n\n modb2 = get_bits1(&s->gb);\n\n mb_type = get_vlc2(&s->gb, mb_type_b_vlc.table, MB_TYPE_B_VLC_BITS, 1);\n\n if (mb_type < 0) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"illegal MB_type\\n\");\n\n return -1;\n\n\n mb_type = mb_type_b_map[mb_type];\n\n if (modb2) {\n\n cbp = 0;\n\n } else {\n\n s->bdsp.clear_blocks(s->block[0]);\n\n cbp = get_bits(&s->gb, 6);\n\n\n\n\n if ((!IS_DIRECT(mb_type)) && cbp) {\n\n if (get_bits1(&s->gb))\n\n ff_set_qscale(s, s->qscale + get_bits1(&s->gb) * 4 - 2);\n\n\n\n\n if (!s->progressive_sequence) {\n\n if (cbp)\n\n s->interlaced_dct = get_bits1(&s->gb);\n\n\n\n if (!IS_DIRECT(mb_type) && get_bits1(&s->gb)) {\n\n mb_type |= MB_TYPE_16x8 | MB_TYPE_INTERLACED;\n\n mb_type &= ~MB_TYPE_16x16;\n\n\n\n if (USES_LIST(mb_type, 0)) {\n\n s->field_select[0][0] = get_bits1(&s->gb);\n\n s->field_select[0][1] = get_bits1(&s->gb);\n\n\n if (USES_LIST(mb_type, 1)) {\n\n s->field_select[1][0] = get_bits1(&s->gb);\n\n s->field_select[1][1] = get_bits1(&s->gb);\n\n\n\n\n\n\n s->mv_dir = 0;\n\n if ((mb_type & (MB_TYPE_DIRECT2 | MB_TYPE_INTERLACED)) == 0) {\n\n s->mv_type = MV_TYPE_16X16;\n\n\n\n if (USES_LIST(mb_type, 0)) {\n\n s->mv_dir = MV_DIR_FORWARD;\n\n\n\n mx = ff_h263_decode_motion(s, s->last_mv[0][0][0], s->f_code);\n\n my = ff_h263_decode_motion(s, s->last_mv[0][0][1], s->f_code);\n\n s->last_mv[0][1][0] =\n\n s->last_mv[0][0][0] =\n\n s->mv[0][0][0] = mx;\n\n s->last_mv[0][1][1] =\n\n s->last_mv[0][0][1] =\n\n s->mv[0][0][1] = my;\n\n\n\n\n if (USES_LIST(mb_type, 1)) {\n\n s->mv_dir |= MV_DIR_BACKWARD;\n\n\n\n mx = ff_h263_decode_motion(s, s->last_mv[1][0][0], s->b_code);\n\n my = ff_h263_decode_motion(s, s->last_mv[1][0][1], s->b_code);\n\n s->last_mv[1][1][0] =\n\n s->last_mv[1][0][0] =\n\n s->mv[1][0][0] = mx;\n\n s->last_mv[1][1][1] =\n\n s->last_mv[1][0][1] =\n\n s->mv[1][0][1] = my;\n\n\n } else if (!IS_DIRECT(mb_type)) {\n\n s->mv_type = MV_TYPE_FIELD;\n\n\n\n if (USES_LIST(mb_type, 0)) {\n\n s->mv_dir = MV_DIR_FORWARD;\n\n\n\n for (i = 0; i < 2; i++) {\n\n mx = ff_h263_decode_motion(s, s->last_mv[0][i][0], s->f_code);\n\n my = ff_h263_decode_motion(s, s->last_mv[0][i][1] / 2, s->f_code);\n\n s->last_mv[0][i][0] =\n\n s->mv[0][i][0] = mx;\n\n s->last_mv[0][i][1] = (s->mv[0][i][1] = my) * 2;\n\n\n\n\n\n if (USES_LIST(mb_type, 1)) {\n\n s->mv_dir |= MV_DIR_BACKWARD;\n\n\n\n for (i = 0; i < 2; i++) {\n\n mx = ff_h263_decode_motion(s, s->last_mv[1][i][0], s->b_code);\n\n my = ff_h263_decode_motion(s, s->last_mv[1][i][1] / 2, s->b_code);\n\n s->last_mv[1][i][0] =\n\n s->mv[1][i][0] = mx;\n\n s->last_mv[1][i][1] = (s->mv[1][i][1] = my) * 2;\n\n\n\n\n\n\n\n if (IS_DIRECT(mb_type)) {\n\n if (IS_SKIP(mb_type)) {\n\n mx =\n\n my = 0;\n\n } else {\n\n mx = ff_h263_decode_motion(s, 0, 1);\n\n my = ff_h263_decode_motion(s, 0, 1);\n\n\n\n\n s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;\n\n mb_type |= ff_mpeg4_set_direct_mv(s, mx, my);\n\n\n s->current_picture.mb_type[xy] = mb_type;\n\n } else { /* I-Frame */\n\n do {\n\n cbpc = get_vlc2(&s->gb, ff_h263_intra_MCBPC_vlc.table, INTRA_MCBPC_VLC_BITS, 2);\n\n if (cbpc < 0) {\n\n\n \"I cbpc damaged at %d %d\\n\", s->mb_x, s->mb_y);\n\n return -1;\n\n\n } while (cbpc == 8);\n\n\n\n dquant = cbpc & 4;\n\n s->mb_intra = 1;\n\n\n\nintra:\n\n s->ac_pred = get_bits1(&s->gb);\n\n if (s->ac_pred)\n\n s->current_picture.mb_type[xy] = MB_TYPE_INTRA | MB_TYPE_ACPRED;\n\n else\n\n s->current_picture.mb_type[xy] = MB_TYPE_INTRA;\n\n\n\n cbpy = get_vlc2(&s->gb, ff_h263_cbpy_vlc.table, CBPY_VLC_BITS, 1);\n\n\n\n \"I cbpy damaged at %d %d\\n\", s->mb_x, s->mb_y);\n\n return -1;\n\n\n cbp = (cbpc & 3) | (cbpy << 2);\n\n\n\n ctx->use_intra_dc_vlc = s->qscale < ctx->intra_dc_threshold;\n\n\n\n if (dquant)\n\n ff_set_qscale(s, s->qscale + quant_tab[get_bits(&s->gb, 2)]);\n\n\n\n if (!s->progressive_sequence)\n\n s->interlaced_dct = get_bits1(&s->gb);\n\n\n\n s->bdsp.clear_blocks(s->block[0]);\n\n /* decode each block */\n\n for (i = 0; i < 6; i++) {\n\n if (mpeg4_decode_block(ctx, block[i], i, cbp & 32, 1, 0) < 0)\n\n return -1;\n\n cbp += cbp;\n\n\n goto end;\n\n\n\n\n /* decode each block */\n\n for (i = 0; i < 6; i++) {\n\n if (mpeg4_decode_block(ctx, block[i], i, cbp & 32, 0, 0) < 0)\n\n return -1;\n\n cbp += cbp;\n\n\n\n\nend:\n\n /* per-MB end of slice check */\n\n if (s->codec_id == AV_CODEC_ID_MPEG4) {\n\n int next = mpeg4_is_resync(ctx);\n\n if (next) {\n\n if (s->mb_x + s->mb_y*s->mb_width + 1 > next && (s->avctx->err_recognition & AV_EF_AGGRESSIVE)) {\n\n return -1;\n\n } else if (s->mb_x + s->mb_y*s->mb_width + 1 >= next)\n\n return SLICE_END;\n\n\n\n if (s->pict_type == AV_PICTURE_TYPE_B) {\n\n const int delta= s->mb_x + 1 == s->mb_width ? 2 : 1;\n\n ff_thread_await_progress(&s->next_picture_ptr->tf,\n\n (s->mb_x + delta >= s->mb_width)\n\n ? FFMIN(s->mb_y + 1, s->mb_height - 1)\n\n : s->mb_y, 0);\n\n if (s->next_picture.mbskip_table[xy + delta])\n\n return SLICE_OK;\n\n\n\n\n return SLICE_END;\n\n\n\n\n\n return SLICE_OK;\n", + "output": "1", + "index": 9427 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int qcow2_open(BlockDriverState *bs, int flags)\n\n{\n\n BDRVQcowState *s = bs->opaque;\n\n int len, i, ret = 0;\n\n QCowHeader header;\n\n uint64_t ext_end;\n\n\n\n ret = bdrv_pread(bs->file, 0, &header, sizeof(header));\n\n if (ret < 0) {\n\n goto fail;\n\n }\n\n be32_to_cpus(&header.magic);\n\n be32_to_cpus(&header.version);\n\n be64_to_cpus(&header.backing_file_offset);\n\n be32_to_cpus(&header.backing_file_size);\n\n be64_to_cpus(&header.size);\n\n be32_to_cpus(&header.cluster_bits);\n\n be32_to_cpus(&header.crypt_method);\n\n be64_to_cpus(&header.l1_table_offset);\n\n be32_to_cpus(&header.l1_size);\n\n be64_to_cpus(&header.refcount_table_offset);\n\n be32_to_cpus(&header.refcount_table_clusters);\n\n be64_to_cpus(&header.snapshots_offset);\n\n be32_to_cpus(&header.nb_snapshots);\n\n\n\n if (header.magic != QCOW_MAGIC) {\n\n ret = -EINVAL;\n\n goto fail;\n\n }\n\n if (header.version < 2 || header.version > 3) {\n\n report_unsupported(bs, \"QCOW version %d\", header.version);\n\n ret = -ENOTSUP;\n\n goto fail;\n\n }\n\n\n\n s->qcow_version = header.version;\n\n\n\n /* Initialise version 3 header fields */\n\n if (header.version == 2) {\n\n header.incompatible_features = 0;\n\n header.compatible_features = 0;\n\n header.autoclear_features = 0;\n\n header.refcount_order = 4;\n\n header.header_length = 72;\n\n } else {\n\n be64_to_cpus(&header.incompatible_features);\n\n be64_to_cpus(&header.compatible_features);\n\n be64_to_cpus(&header.autoclear_features);\n\n be32_to_cpus(&header.refcount_order);\n\n be32_to_cpus(&header.header_length);\n\n }\n\n\n\n if (header.header_length > sizeof(header)) {\n\n s->unknown_header_fields_size = header.header_length - sizeof(header);\n\n s->unknown_header_fields = g_malloc(s->unknown_header_fields_size);\n\n ret = bdrv_pread(bs->file, sizeof(header), s->unknown_header_fields,\n\n s->unknown_header_fields_size);\n\n if (ret < 0) {\n\n goto fail;\n\n }\n\n }\n\n\n\n if (header.backing_file_offset) {\n\n ext_end = header.backing_file_offset;\n\n } else {\n\n ext_end = 1 << header.cluster_bits;\n\n }\n\n\n\n /* Handle feature bits */\n\n s->incompatible_features = header.incompatible_features;\n\n s->compatible_features = header.compatible_features;\n\n s->autoclear_features = header.autoclear_features;\n\n\n\n if (s->incompatible_features != 0) {\n\n void *feature_table = NULL;\n\n qcow2_read_extensions(bs, header.header_length, ext_end,\n\n &feature_table);\n\n report_unsupported_feature(bs, feature_table,\n\n s->incompatible_features);\n\n ret = -ENOTSUP;\n\n goto fail;\n\n }\n\n\n\n /* Check support for various header values */\n\n if (header.refcount_order != 4) {\n\n report_unsupported(bs, \"%d bit reference counts\",\n\n 1 << header.refcount_order);\n\n ret = -ENOTSUP;\n\n goto fail;\n\n }\n\n\n\n if (header.cluster_bits < MIN_CLUSTER_BITS ||\n\n header.cluster_bits > MAX_CLUSTER_BITS) {\n\n ret = -EINVAL;\n\n goto fail;\n\n }\n\n if (header.crypt_method > QCOW_CRYPT_AES) {\n\n ret = -EINVAL;\n\n goto fail;\n\n }\n\n s->crypt_method_header = header.crypt_method;\n\n if (s->crypt_method_header) {\n\n bs->encrypted = 1;\n\n }\n\n s->cluster_bits = header.cluster_bits;\n\n s->cluster_size = 1 << s->cluster_bits;\n\n s->cluster_sectors = 1 << (s->cluster_bits - 9);\n\n s->l2_bits = s->cluster_bits - 3; /* L2 is always one cluster */\n\n s->l2_size = 1 << s->l2_bits;\n\n bs->total_sectors = header.size / 512;\n\n s->csize_shift = (62 - (s->cluster_bits - 8));\n\n s->csize_mask = (1 << (s->cluster_bits - 8)) - 1;\n\n s->cluster_offset_mask = (1LL << s->csize_shift) - 1;\n\n s->refcount_table_offset = header.refcount_table_offset;\n\n s->refcount_table_size =\n\n header.refcount_table_clusters << (s->cluster_bits - 3);\n\n\n\n s->snapshots_offset = header.snapshots_offset;\n\n s->nb_snapshots = header.nb_snapshots;\n\n\n\n /* read the level 1 table */\n\n s->l1_size = header.l1_size;\n\n s->l1_vm_state_index = size_to_l1(s, header.size);\n\n /* the L1 table must contain at least enough entries to put\n\n header.size bytes */\n\n if (s->l1_size < s->l1_vm_state_index) {\n\n ret = -EINVAL;\n\n goto fail;\n\n }\n\n s->l1_table_offset = header.l1_table_offset;\n\n if (s->l1_size > 0) {\n\n s->l1_table = g_malloc0(\n\n align_offset(s->l1_size * sizeof(uint64_t), 512));\n\n ret = bdrv_pread(bs->file, s->l1_table_offset, s->l1_table,\n\n s->l1_size * sizeof(uint64_t));\n\n if (ret < 0) {\n\n goto fail;\n\n }\n\n for(i = 0;i < s->l1_size; i++) {\n\n be64_to_cpus(&s->l1_table[i]);\n\n }\n\n }\n\n\n\n /* alloc L2 table/refcount block cache */\n\n s->l2_table_cache = qcow2_cache_create(bs, L2_CACHE_SIZE);\n\n s->refcount_block_cache = qcow2_cache_create(bs, REFCOUNT_CACHE_SIZE);\n\n\n\n s->cluster_cache = g_malloc(s->cluster_size);\n\n /* one more sector for decompressed data alignment */\n\n s->cluster_data = qemu_blockalign(bs, QCOW_MAX_CRYPT_CLUSTERS * s->cluster_size\n\n + 512);\n\n s->cluster_cache_offset = -1;\n\n s->flags = flags;\n\n\n\n ret = qcow2_refcount_init(bs);\n\n if (ret != 0) {\n\n goto fail;\n\n }\n\n\n\n QLIST_INIT(&s->cluster_allocs);\n\n\n\n /* read qcow2 extensions */\n\n if (qcow2_read_extensions(bs, header.header_length, ext_end, NULL)) {\n\n ret = -EINVAL;\n\n goto fail;\n\n }\n\n\n\n /* read the backing file name */\n\n if (header.backing_file_offset != 0) {\n\n len = header.backing_file_size;\n\n if (len > 1023) {\n\n len = 1023;\n\n }\n\n ret = bdrv_pread(bs->file, header.backing_file_offset,\n\n bs->backing_file, len);\n\n if (ret < 0) {\n\n goto fail;\n\n }\n\n bs->backing_file[len] = '\\0';\n\n }\n\n\n\n ret = qcow2_read_snapshots(bs);\n\n if (ret < 0) {\n\n goto fail;\n\n }\n\n\n\n /* Clear unknown autoclear feature bits */\n\n if (!bs->read_only && s->autoclear_features != 0) {\n\n s->autoclear_features = 0;\n\n ret = qcow2_update_header(bs);\n\n if (ret < 0) {\n\n goto fail;\n\n }\n\n }\n\n\n\n /* Initialise locks */\n\n qemu_co_mutex_init(&s->lock);\n\n\n\n#ifdef DEBUG_ALLOC\n\n {\n\n BdrvCheckResult result = {0};\n\n qcow2_check_refcounts(bs, &result);\n\n }\n\n#endif\n\n return ret;\n\n\n\n fail:\n\n g_free(s->unknown_header_fields);\n\n cleanup_unknown_header_ext(bs);\n\n qcow2_free_snapshots(bs);\n\n qcow2_refcount_close(bs);\n\n g_free(s->l1_table);\n\n if (s->l2_table_cache) {\n\n qcow2_cache_destroy(bs, s->l2_table_cache);\n\n }\n\n g_free(s->cluster_cache);\n\n qemu_vfree(s->cluster_data);\n\n return ret;\n\n}\n", + "output": "1", + "index": 26324 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int parse_optional_info(DCACoreDecoder *s)\n\n{\n\n DCAContext *dca = s->avctx->priv_data;\n\n int ret = -1;\n\n\n\n // Time code stamp\n\n if (s->ts_present)\n\n skip_bits_long(&s->gb, 32);\n\n\n\n // Auxiliary data\n\n if (s->aux_present && (ret = parse_aux_data(s)) < 0\n\n && (s->avctx->err_recognition & AV_EF_EXPLODE))\n\n return ret;\n\n\n\n if (ret < 0)\n\n s->prim_dmix_embedded = 0;\n\n\n\n // Core extensions\n\n if (s->ext_audio_present && !dca->core_only) {\n\n int sync_pos = FFMIN(s->frame_size / 4, s->gb.size_in_bits / 32) - 1;\n\n int last_pos = get_bits_count(&s->gb) / 32;\n\n int size, dist;\n\n\n\n // Search for extension sync words aligned on 4-byte boundary. Search\n\n // must be done backwards from the end of core frame to work around\n\n // sync word aliasing issues.\n\n switch (s->ext_audio_type) {\n\n case EXT_AUDIO_XCH:\n\n if (dca->request_channel_layout)\n\n break;\n\n\n\n // The distance between XCH sync word and end of the core frame\n\n // must be equal to XCH frame size. Off by one error is allowed for\n\n // compatibility with legacy bitstreams. Minimum XCH frame size is\n\n // 96 bytes. AMODE and PCHS are further checked to reduce\n\n // probability of alias sync detection.\n\n for (; sync_pos >= last_pos; sync_pos--) {\n\n if (AV_RB32(s->gb.buffer + sync_pos * 4) == DCA_SYNCWORD_XCH) {\n\n s->gb.index = (sync_pos + 1) * 32;\n\n size = get_bits(&s->gb, 10) + 1;\n\n dist = s->frame_size - sync_pos * 4;\n\n if (size >= 96\n\n && (size == dist || size - 1 == dist)\n\n && get_bits(&s->gb, 7) == 0x08) {\n\n s->xch_pos = get_bits_count(&s->gb);\n\n break;\n\n }\n\n }\n\n }\n\n\n\n if (s->avctx->err_recognition & AV_EF_EXPLODE) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"XCH sync word not found\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n break;\n\n\n\n case EXT_AUDIO_X96:\n\n // The distance between X96 sync word and end of the core frame\n\n // must be equal to X96 frame size. Minimum X96 frame size is 96\n\n // bytes.\n\n for (; sync_pos >= last_pos; sync_pos--) {\n\n if (AV_RB32(s->gb.buffer + sync_pos * 4) == DCA_SYNCWORD_X96) {\n\n s->gb.index = (sync_pos + 1) * 32;\n\n size = get_bits(&s->gb, 12) + 1;\n\n dist = s->frame_size - sync_pos * 4;\n\n if (size >= 96 && size == dist) {\n\n s->x96_pos = get_bits_count(&s->gb);\n\n break;\n\n }\n\n }\n\n }\n\n\n\n if (s->avctx->err_recognition & AV_EF_EXPLODE) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"X96 sync word not found\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n break;\n\n\n\n case EXT_AUDIO_XXCH:\n\n if (dca->request_channel_layout)\n\n break;\n\n\n\n // XXCH frame header CRC must be valid. Minimum XXCH frame header\n\n // size is 11 bytes.\n\n for (; sync_pos >= last_pos; sync_pos--) {\n\n if (AV_RB32(s->gb.buffer + sync_pos * 4) == DCA_SYNCWORD_XXCH) {\n\n s->gb.index = (sync_pos + 1) * 32;\n\n size = get_bits(&s->gb, 6) + 1;\n\n if (size >= 11 &&\n\n !ff_dca_check_crc(&s->gb, (sync_pos + 1) * 32,\n\n sync_pos * 32 + size * 8)) {\n\n s->xxch_pos = sync_pos * 32;\n\n break;\n\n }\n\n }\n\n }\n\n\n\n if (s->avctx->err_recognition & AV_EF_EXPLODE) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"XXCH sync word not found\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n break;\n\n }\n\n }\n\n\n\n return 0;\n\n}\n", + "output": "0", + "index": 22159 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void ppc_prep_init (ram_addr_t ram_size,\n\n const char *boot_device,\n\n const char *kernel_filename,\n\n const char *kernel_cmdline,\n\n const char *initrd_filename,\n\n const char *cpu_model)\n\n{\n\n CPUState *env = NULL;\n\n char *filename;\n\n nvram_t nvram;\n\n M48t59State *m48t59;\n\n int PPC_io_memory;\n\n int linux_boot, i, nb_nics1, bios_size;\n\n ram_addr_t ram_offset, bios_offset;\n\n uint32_t kernel_base, initrd_base;\n\n long kernel_size, initrd_size;\n\n PCIBus *pci_bus;\n\n qemu_irq *i8259;\n\n qemu_irq *cpu_exit_irq;\n\n int ppc_boot_device;\n\n DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];\n\n DriveInfo *fd[MAX_FD];\n\n\n\n sysctrl = qemu_mallocz(sizeof(sysctrl_t));\n\n\n\n linux_boot = (kernel_filename != NULL);\n\n\n\n /* init CPUs */\n\n if (cpu_model == NULL)\n\n cpu_model = \"602\";\n\n for (i = 0; i < smp_cpus; i++) {\n\n env = cpu_init(cpu_model);\n\n if (!env) {\n\n fprintf(stderr, \"Unable to find PowerPC CPU definition\\n\");\n\n exit(1);\n\n }\n\n if (env->flags & POWERPC_FLAG_RTC_CLK) {\n\n /* POWER / PowerPC 601 RTC clock frequency is 7.8125 MHz */\n\n cpu_ppc_tb_init(env, 7812500UL);\n\n } else {\n\n /* Set time-base frequency to 100 Mhz */\n\n cpu_ppc_tb_init(env, 100UL * 1000UL * 1000UL);\n\n }\n\n qemu_register_reset((QEMUResetHandler*)&cpu_reset, env);\n\n }\n\n\n\n /* allocate RAM */\n\n ram_offset = qemu_ram_alloc(NULL, \"ppc_prep.ram\", ram_size);\n\n cpu_register_physical_memory(0, ram_size, ram_offset);\n\n\n\n /* allocate and load BIOS */\n\n bios_offset = qemu_ram_alloc(NULL, \"ppc_prep.bios\", BIOS_SIZE);\n\n if (bios_name == NULL)\n\n bios_name = BIOS_FILENAME;\n\n filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);\n\n if (filename) {\n\n bios_size = get_image_size(filename);\n\n } else {\n\n bios_size = -1;\n\n }\n\n if (bios_size > 0 && bios_size <= BIOS_SIZE) {\n\n target_phys_addr_t bios_addr;\n\n bios_size = (bios_size + 0xfff) & ~0xfff;\n\n bios_addr = (uint32_t)(-bios_size);\n\n cpu_register_physical_memory(bios_addr, bios_size,\n\n bios_offset | IO_MEM_ROM);\n\n bios_size = load_image_targphys(filename, bios_addr, bios_size);\n\n }\n\n if (bios_size < 0 || bios_size > BIOS_SIZE) {\n\n hw_error(\"qemu: could not load PPC PREP bios '%s'\\n\", bios_name);\n\n }\n\n if (filename) {\n\n qemu_free(filename);\n\n }\n\n\n\n if (linux_boot) {\n\n kernel_base = KERNEL_LOAD_ADDR;\n\n /* now we can load the kernel */\n\n kernel_size = load_image_targphys(kernel_filename, kernel_base,\n\n ram_size - kernel_base);\n\n if (kernel_size < 0) {\n\n hw_error(\"qemu: could not load kernel '%s'\\n\", kernel_filename);\n\n exit(1);\n\n }\n\n /* load initrd */\n\n if (initrd_filename) {\n\n initrd_base = INITRD_LOAD_ADDR;\n\n initrd_size = load_image_targphys(initrd_filename, initrd_base,\n\n ram_size - initrd_base);\n\n if (initrd_size < 0) {\n\n hw_error(\"qemu: could not load initial ram disk '%s'\\n\",\n\n initrd_filename);\n\n }\n\n } else {\n\n initrd_base = 0;\n\n initrd_size = 0;\n\n }\n\n ppc_boot_device = 'm';\n\n } else {\n\n kernel_base = 0;\n\n kernel_size = 0;\n\n initrd_base = 0;\n\n initrd_size = 0;\n\n ppc_boot_device = '\\0';\n\n /* For now, OHW cannot boot from the network. */\n\n for (i = 0; boot_device[i] != '\\0'; i++) {\n\n if (boot_device[i] >= 'a' && boot_device[i] <= 'f') {\n\n ppc_boot_device = boot_device[i];\n\n break;\n\n }\n\n }\n\n if (ppc_boot_device == '\\0') {\n\n fprintf(stderr, \"No valid boot device for Mac99 machine\\n\");\n\n exit(1);\n\n }\n\n }\n\n\n\n isa_mem_base = 0xc0000000;\n\n if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {\n\n hw_error(\"Only 6xx bus is supported on PREP machine\\n\");\n\n }\n\n i8259 = i8259_init(first_cpu->irq_inputs[PPC6xx_INPUT_INT]);\n\n pci_bus = pci_prep_init(i8259);\n\n /* Hmm, prep has no pci-isa bridge ??? */\n\n isa_bus_new(NULL);\n\n isa_bus_irqs(i8259);\n\n // pci_bus = i440fx_init();\n\n /* Register 8 MB of ISA IO space (needed for non-contiguous map) */\n\n PPC_io_memory = cpu_register_io_memory(PPC_prep_io_read,\n\n PPC_prep_io_write, sysctrl,\n\n DEVICE_LITTLE_ENDIAN);\n\n cpu_register_physical_memory(0x80000000, 0x00800000, PPC_io_memory);\n\n\n\n /* init basic PC hardware */\n\n pci_vga_init(pci_bus);\n\n // openpic = openpic_init(0x00000000, 0xF0000000, 1);\n\n // pit = pit_init(0x40, i8259[0]);\n\n rtc_init(2000, NULL);\n\n\n\n if (serial_hds[0])\n\n serial_isa_init(0, serial_hds[0]);\n\n nb_nics1 = nb_nics;\n\n if (nb_nics1 > NE2000_NB_MAX)\n\n nb_nics1 = NE2000_NB_MAX;\n\n for(i = 0; i < nb_nics1; i++) {\n\n if (nd_table[i].model == NULL) {\n\n\t nd_table[i].model = qemu_strdup(\"ne2k_isa\");\n\n }\n\n if (strcmp(nd_table[i].model, \"ne2k_isa\") == 0) {\n\n isa_ne2000_init(ne2000_io[i], ne2000_irq[i], &nd_table[i]);\n\n } else {\n\n pci_nic_init_nofail(&nd_table[i], \"ne2k_pci\", NULL);\n\n }\n\n }\n\n\n\n if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {\n\n fprintf(stderr, \"qemu: too many IDE bus\\n\");\n\n exit(1);\n\n }\n\n\n\n for(i = 0; i < MAX_IDE_BUS * MAX_IDE_DEVS; i++) {\n\n hd[i] = drive_get(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS);\n\n }\n\n\n\n for(i = 0; i < 1/*MAX_IDE_BUS*/; i++) {\n\n isa_ide_init(ide_iobase[i], ide_iobase2[i], ide_irq[i],\n\n hd[2 * i],\n\n\t\t hd[2 * i + 1]);\n\n }\n\n isa_create_simple(\"i8042\");\n\n\n\n cpu_exit_irq = qemu_allocate_irqs(cpu_request_exit, NULL, 1);\n\n DMA_init(1, cpu_exit_irq);\n\n\n\n // SB16_init();\n\n\n\n for(i = 0; i < MAX_FD; i++) {\n\n fd[i] = drive_get(IF_FLOPPY, 0, i);\n\n }\n\n fdctrl_init_isa(fd);\n\n\n\n /* Register speaker port */\n\n register_ioport_read(0x61, 1, 1, speaker_ioport_read, NULL);\n\n register_ioport_write(0x61, 1, 1, speaker_ioport_write, NULL);\n\n /* Register fake IO ports for PREP */\n\n sysctrl->reset_irq = first_cpu->irq_inputs[PPC6xx_INPUT_HRESET];\n\n register_ioport_read(0x398, 2, 1, &PREP_io_read, sysctrl);\n\n register_ioport_write(0x398, 2, 1, &PREP_io_write, sysctrl);\n\n /* System control ports */\n\n register_ioport_read(0x0092, 0x01, 1, &PREP_io_800_readb, sysctrl);\n\n register_ioport_write(0x0092, 0x01, 1, &PREP_io_800_writeb, sysctrl);\n\n register_ioport_read(0x0800, 0x52, 1, &PREP_io_800_readb, sysctrl);\n\n register_ioport_write(0x0800, 0x52, 1, &PREP_io_800_writeb, sysctrl);\n\n /* PCI intack location */\n\n PPC_io_memory = cpu_register_io_memory(PPC_intack_read,\n\n PPC_intack_write, NULL,\n\n DEVICE_LITTLE_ENDIAN);\n\n cpu_register_physical_memory(0xBFFFFFF0, 0x4, PPC_io_memory);\n\n /* PowerPC control and status register group */\n\n#if 0\n\n PPC_io_memory = cpu_register_io_memory(PPC_XCSR_read, PPC_XCSR_write,\n\n NULL, DEVICE_LITTLE_ENDIAN);\n\n cpu_register_physical_memory(0xFEFF0000, 0x1000, PPC_io_memory);\n\n#endif\n\n\n\n if (usb_enabled) {\n\n usb_ohci_init_pci(pci_bus, -1);\n\n }\n\n\n\n m48t59 = m48t59_init(i8259[8], 0, 0x0074, NVRAM_SIZE, 59);\n\n if (m48t59 == NULL)\n\n return;\n\n sysctrl->nvram = m48t59;\n\n\n\n /* Initialise NVRAM */\n\n nvram.opaque = m48t59;\n\n nvram.read_fn = &m48t59_read;\n\n nvram.write_fn = &m48t59_write;\n\n PPC_NVRAM_set_params(&nvram, NVRAM_SIZE, \"PREP\", ram_size, ppc_boot_device,\n\n kernel_base, kernel_size,\n\n kernel_cmdline,\n\n initrd_base, initrd_size,\n\n /* XXX: need an option to load a NVRAM image */\n\n 0,\n\n graphic_width, graphic_height, graphic_depth);\n\n\n\n /* Special port to get debug messages from Open-Firmware */\n\n register_ioport_write(0x0F00, 4, 1, &PPC_debug_write, NULL);\n\n}\n", + "output": "0", + "index": 6605 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static av_cold int flac_encode_init(AVCodecContext *avctx)\n\n{\n\n int freq = avctx->sample_rate;\n\n int channels = avctx->channels;\n\n FlacEncodeContext *s = avctx->priv_data;\n\n int i, level;\n\n uint8_t *streaminfo;\n\n\n\n s->avctx = avctx;\n\n\n\n dsputil_init(&s->dsp, avctx);\n\n\n\n if (avctx->sample_fmt != SAMPLE_FMT_S16)\n\n return -1;\n\n\n\n if (channels < 1 || channels > FLAC_MAX_CHANNELS)\n\n return -1;\n\n s->channels = channels;\n\n\n\n /* find samplerate in table */\n\n if (freq < 1)\n\n return -1;\n\n for (i = 4; i < 12; i++) {\n\n if (freq == ff_flac_sample_rate_table[i]) {\n\n s->samplerate = ff_flac_sample_rate_table[i];\n\n s->sr_code[0] = i;\n\n s->sr_code[1] = 0;\n\n break;\n\n }\n\n }\n\n /* if not in table, samplerate is non-standard */\n\n if (i == 12) {\n\n if (freq % 1000 == 0 && freq < 255000) {\n\n s->sr_code[0] = 12;\n\n s->sr_code[1] = freq / 1000;\n\n } else if (freq % 10 == 0 && freq < 655350) {\n\n s->sr_code[0] = 14;\n\n s->sr_code[1] = freq / 10;\n\n } else if (freq < 65535) {\n\n s->sr_code[0] = 13;\n\n s->sr_code[1] = freq;\n\n } else {\n\n return -1;\n\n }\n\n s->samplerate = freq;\n\n }\n\n\n\n /* set compression option defaults based on avctx->compression_level */\n\n if (avctx->compression_level < 0)\n\n s->options.compression_level = 5;\n\n else\n\n s->options.compression_level = avctx->compression_level;\n\n av_log(avctx, AV_LOG_DEBUG, \" compression: %d\\n\", s->options.compression_level);\n\n\n\n level = s->options.compression_level;\n\n if (level > 12) {\n\n av_log(avctx, AV_LOG_ERROR, \"invalid compression level: %d\\n\",\n\n s->options.compression_level);\n\n return -1;\n\n }\n\n\n\n s->options.block_time_ms = ((int[]){ 27, 27, 27,105,105,105,105,105,105,105,105,105,105})[level];\n\n\n\n s->options.lpc_type = ((int[]){ AV_LPC_TYPE_FIXED, AV_LPC_TYPE_FIXED, AV_LPC_TYPE_FIXED,\n\n AV_LPC_TYPE_LEVINSON, AV_LPC_TYPE_LEVINSON, AV_LPC_TYPE_LEVINSON,\n\n AV_LPC_TYPE_LEVINSON, AV_LPC_TYPE_LEVINSON, AV_LPC_TYPE_LEVINSON,\n\n AV_LPC_TYPE_LEVINSON, AV_LPC_TYPE_LEVINSON, AV_LPC_TYPE_LEVINSON,\n\n AV_LPC_TYPE_LEVINSON})[level];\n\n\n\n s->options.min_prediction_order = ((int[]){ 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1})[level];\n\n s->options.max_prediction_order = ((int[]){ 3, 4, 4, 6, 8, 8, 8, 8, 12, 12, 12, 32, 32})[level];\n\n\n\n s->options.prediction_order_method = ((int[]){ ORDER_METHOD_EST, ORDER_METHOD_EST, ORDER_METHOD_EST,\n\n ORDER_METHOD_EST, ORDER_METHOD_EST, ORDER_METHOD_EST,\n\n ORDER_METHOD_4LEVEL, ORDER_METHOD_LOG, ORDER_METHOD_4LEVEL,\n\n ORDER_METHOD_LOG, ORDER_METHOD_SEARCH, ORDER_METHOD_LOG,\n\n ORDER_METHOD_SEARCH})[level];\n\n\n\n s->options.min_partition_order = ((int[]){ 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0})[level];\n\n s->options.max_partition_order = ((int[]){ 2, 2, 3, 3, 3, 8, 8, 8, 8, 8, 8, 8, 8})[level];\n\n\n\n /* set compression option overrides from AVCodecContext */\n\n#if LIBAVCODEC_VERSION_MAJOR < 53\n\n /* for compatibility with deprecated AVCodecContext.use_lpc */\n\n if (avctx->use_lpc == 0) {\n\n s->options.lpc_type = AV_LPC_TYPE_FIXED;\n\n } else if (avctx->use_lpc == 1) {\n\n s->options.lpc_type = AV_LPC_TYPE_LEVINSON;\n\n } else if (avctx->use_lpc > 1) {\n\n s->options.lpc_type = AV_LPC_TYPE_CHOLESKY;\n\n s->options.lpc_passes = avctx->use_lpc - 1;\n\n }\n\n#endif\n\n if (avctx->lpc_type > AV_LPC_TYPE_DEFAULT) {\n\n if (avctx->lpc_type > AV_LPC_TYPE_CHOLESKY) {\n\n av_log(avctx, AV_LOG_ERROR, \"unknown lpc type: %d\\n\", avctx->lpc_type);\n\n return -1;\n\n }\n\n s->options.lpc_type = avctx->lpc_type;\n\n if (s->options.lpc_type == AV_LPC_TYPE_CHOLESKY) {\n\n if (avctx->lpc_passes < 0) {\n\n // default number of passes for Cholesky\n\n s->options.lpc_passes = 2;\n\n } else if (avctx->lpc_passes == 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"invalid number of lpc passes: %d\\n\",\n\n avctx->lpc_passes);\n\n return -1;\n\n } else {\n\n s->options.lpc_passes = avctx->lpc_passes;\n\n }\n\n }\n\n }\n\n switch (s->options.lpc_type) {\n\n case AV_LPC_TYPE_NONE:\n\n av_log(avctx, AV_LOG_DEBUG, \" lpc type: None\\n\");\n\n break;\n\n case AV_LPC_TYPE_FIXED:\n\n av_log(avctx, AV_LOG_DEBUG, \" lpc type: Fixed pre-defined coefficients\\n\");\n\n break;\n\n case AV_LPC_TYPE_LEVINSON:\n\n av_log(avctx, AV_LOG_DEBUG, \" lpc type: Levinson-Durbin recursion with Welch window\\n\");\n\n break;\n\n case AV_LPC_TYPE_CHOLESKY:\n\n av_log(avctx, AV_LOG_DEBUG, \" lpc type: Cholesky factorization, %d pass%s\\n\",\n\n s->options.lpc_passes, s->options.lpc_passes==1?\"\":\"es\");\n\n break;\n\n }\n\n\n\n if (s->options.lpc_type == AV_LPC_TYPE_NONE) {\n\n s->options.min_prediction_order = 0;\n\n } else if (avctx->min_prediction_order >= 0) {\n\n if (s->options.lpc_type == AV_LPC_TYPE_FIXED) {\n\n if (avctx->min_prediction_order > MAX_FIXED_ORDER) {\n\n av_log(avctx, AV_LOG_ERROR, \"invalid min prediction order: %d\\n\",\n\n avctx->min_prediction_order);\n\n return -1;\n\n }\n\n } else if (avctx->min_prediction_order < MIN_LPC_ORDER ||\n\n avctx->min_prediction_order > MAX_LPC_ORDER) {\n\n av_log(avctx, AV_LOG_ERROR, \"invalid min prediction order: %d\\n\",\n\n avctx->min_prediction_order);\n\n return -1;\n\n }\n\n s->options.min_prediction_order = avctx->min_prediction_order;\n\n }\n\n if (s->options.lpc_type == AV_LPC_TYPE_NONE) {\n\n s->options.max_prediction_order = 0;\n\n } else if (avctx->max_prediction_order >= 0) {\n\n if (s->options.lpc_type == AV_LPC_TYPE_FIXED) {\n\n if (avctx->max_prediction_order > MAX_FIXED_ORDER) {\n\n av_log(avctx, AV_LOG_ERROR, \"invalid max prediction order: %d\\n\",\n\n avctx->max_prediction_order);\n\n return -1;\n\n }\n\n } else if (avctx->max_prediction_order < MIN_LPC_ORDER ||\n\n avctx->max_prediction_order > MAX_LPC_ORDER) {\n\n av_log(avctx, AV_LOG_ERROR, \"invalid max prediction order: %d\\n\",\n\n avctx->max_prediction_order);\n\n return -1;\n\n }\n\n s->options.max_prediction_order = avctx->max_prediction_order;\n\n }\n\n if (s->options.max_prediction_order < s->options.min_prediction_order) {\n\n av_log(avctx, AV_LOG_ERROR, \"invalid prediction orders: min=%d max=%d\\n\",\n\n s->options.min_prediction_order, s->options.max_prediction_order);\n\n return -1;\n\n }\n\n av_log(avctx, AV_LOG_DEBUG, \" prediction order: %d, %d\\n\",\n\n s->options.min_prediction_order, s->options.max_prediction_order);\n\n\n\n if (avctx->prediction_order_method >= 0) {\n\n if (avctx->prediction_order_method > ORDER_METHOD_LOG) {\n\n av_log(avctx, AV_LOG_ERROR, \"invalid prediction order method: %d\\n\",\n\n avctx->prediction_order_method);\n\n return -1;\n\n }\n\n s->options.prediction_order_method = avctx->prediction_order_method;\n\n }\n\n switch (s->options.prediction_order_method) {\n\n case ORDER_METHOD_EST: av_log(avctx, AV_LOG_DEBUG, \" order method: %s\\n\",\n\n \"estimate\"); break;\n\n case ORDER_METHOD_2LEVEL: av_log(avctx, AV_LOG_DEBUG, \" order method: %s\\n\",\n\n \"2-level\"); break;\n\n case ORDER_METHOD_4LEVEL: av_log(avctx, AV_LOG_DEBUG, \" order method: %s\\n\",\n\n \"4-level\"); break;\n\n case ORDER_METHOD_8LEVEL: av_log(avctx, AV_LOG_DEBUG, \" order method: %s\\n\",\n\n \"8-level\"); break;\n\n case ORDER_METHOD_SEARCH: av_log(avctx, AV_LOG_DEBUG, \" order method: %s\\n\",\n\n \"full search\"); break;\n\n case ORDER_METHOD_LOG: av_log(avctx, AV_LOG_DEBUG, \" order method: %s\\n\",\n\n \"log search\"); break;\n\n }\n\n\n\n if (avctx->min_partition_order >= 0) {\n\n if (avctx->min_partition_order > MAX_PARTITION_ORDER) {\n\n av_log(avctx, AV_LOG_ERROR, \"invalid min partition order: %d\\n\",\n\n avctx->min_partition_order);\n\n return -1;\n\n }\n\n s->options.min_partition_order = avctx->min_partition_order;\n\n }\n\n if (avctx->max_partition_order >= 0) {\n\n if (avctx->max_partition_order > MAX_PARTITION_ORDER) {\n\n av_log(avctx, AV_LOG_ERROR, \"invalid max partition order: %d\\n\",\n\n avctx->max_partition_order);\n\n return -1;\n\n }\n\n s->options.max_partition_order = avctx->max_partition_order;\n\n }\n\n if (s->options.max_partition_order < s->options.min_partition_order) {\n\n av_log(avctx, AV_LOG_ERROR, \"invalid partition orders: min=%d max=%d\\n\",\n\n s->options.min_partition_order, s->options.max_partition_order);\n\n return -1;\n\n }\n\n av_log(avctx, AV_LOG_DEBUG, \" partition order: %d, %d\\n\",\n\n s->options.min_partition_order, s->options.max_partition_order);\n\n\n\n if (avctx->frame_size > 0) {\n\n if (avctx->frame_size < FLAC_MIN_BLOCKSIZE ||\n\n avctx->frame_size > FLAC_MAX_BLOCKSIZE) {\n\n av_log(avctx, AV_LOG_ERROR, \"invalid block size: %d\\n\",\n\n avctx->frame_size);\n\n return -1;\n\n }\n\n } else {\n\n s->avctx->frame_size = select_blocksize(s->samplerate, s->options.block_time_ms);\n\n }\n\n s->max_blocksize = s->avctx->frame_size;\n\n av_log(avctx, AV_LOG_DEBUG, \" block size: %d\\n\", s->avctx->frame_size);\n\n\n\n /* set LPC precision */\n\n if (avctx->lpc_coeff_precision > 0) {\n\n if (avctx->lpc_coeff_precision > MAX_LPC_PRECISION) {\n\n av_log(avctx, AV_LOG_ERROR, \"invalid lpc coeff precision: %d\\n\",\n\n avctx->lpc_coeff_precision);\n\n return -1;\n\n }\n\n s->options.lpc_coeff_precision = avctx->lpc_coeff_precision;\n\n } else {\n\n /* default LPC precision */\n\n s->options.lpc_coeff_precision = 15;\n\n }\n\n av_log(avctx, AV_LOG_DEBUG, \" lpc precision: %d\\n\",\n\n s->options.lpc_coeff_precision);\n\n\n\n /* set maximum encoded frame size in verbatim mode */\n\n s->max_framesize = ff_flac_get_max_frame_size(s->avctx->frame_size,\n\n s->channels, 16);\n\n\n\n /* initialize MD5 context */\n\n s->md5ctx = av_malloc(av_md5_size);\n\n if (!s->md5ctx)\n\n\n av_md5_init(s->md5ctx);\n\n\n\n streaminfo = av_malloc(FLAC_STREAMINFO_SIZE);\n\n if (!streaminfo)\n\n\n write_streaminfo(s, streaminfo);\n\n avctx->extradata = streaminfo;\n\n avctx->extradata_size = FLAC_STREAMINFO_SIZE;\n\n\n\n s->frame_count = 0;\n\n s->min_framesize = s->max_framesize;\n\n\n\n avctx->coded_frame = avcodec_alloc_frame();\n\n\n\n avctx->coded_frame->key_frame = 1;\n\n\n\n return 0;\n\n}", + "output": "1", + "index": 6337 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void gem_write(void *opaque, hwaddr offset, uint64_t val,\n\n unsigned size)\n\n{\n\n CadenceGEMState *s = (CadenceGEMState *)opaque;\n\n uint32_t readonly;\n\n int i;\n\n\n\n DB_PRINT(\"offset: 0x%04x write: 0x%08x \", (unsigned)offset, (unsigned)val);\n\n offset >>= 2;\n\n\n\n /* Squash bits which are read only in write value */\n\n val &= ~(s->regs_ro[offset]);\n\n /* Preserve (only) bits which are read only and wtc in register */\n\n readonly = s->regs[offset] & (s->regs_ro[offset] | s->regs_w1c[offset]);\n\n\n\n /* Copy register write to backing store */\n\n s->regs[offset] = (val & ~s->regs_w1c[offset]) | readonly;\n\n\n\n /* do w1c */\n\n s->regs[offset] &= ~(s->regs_w1c[offset] & val);\n\n\n\n /* Handle register write side effects */\n\n switch (offset) {\n\n case GEM_NWCTRL:\n\n if (val & GEM_NWCTRL_RXENA) {\n\n for (i = 0; i < s->num_priority_queues; ++i) {\n\n gem_get_rx_desc(s, i);\n\n }\n\n }\n\n if (val & GEM_NWCTRL_TXSTART) {\n\n gem_transmit(s);\n\n }\n\n if (!(val & GEM_NWCTRL_TXENA)) {\n\n /* Reset to start of Q when transmit disabled. */\n\n for (i = 0; i < s->num_priority_queues; i++) {\n\n s->tx_desc_addr[i] = s->regs[GEM_TXQBASE];\n\n }\n\n }\n\n if (gem_can_receive(qemu_get_queue(s->nic))) {\n\n qemu_flush_queued_packets(qemu_get_queue(s->nic));\n\n }\n\n break;\n\n\n\n case GEM_TXSTATUS:\n\n gem_update_int_status(s);\n\n break;\n\n case GEM_RXQBASE:\n\n s->rx_desc_addr[0] = val;\n\n break;\n\n case GEM_RECEIVE_Q1_PTR ... GEM_RECEIVE_Q15_PTR:\n\n s->rx_desc_addr[offset - GEM_RECEIVE_Q1_PTR + 1] = val;\n\n break;\n\n case GEM_TXQBASE:\n\n s->tx_desc_addr[0] = val;\n\n break;\n\n case GEM_TRANSMIT_Q1_PTR ... GEM_TRANSMIT_Q15_PTR:\n\n s->tx_desc_addr[offset - GEM_TRANSMIT_Q1_PTR + 1] = val;\n\n break;\n\n case GEM_RXSTATUS:\n\n gem_update_int_status(s);\n\n break;\n\n case GEM_IER:\n\n s->regs[GEM_IMR] &= ~val;\n\n gem_update_int_status(s);\n\n break;\n\n case GEM_INT_Q1_ENABLE ... GEM_INT_Q7_ENABLE:\n\n s->regs[GEM_INT_Q1_MASK + offset - GEM_INT_Q1_ENABLE] &= ~val;\n\n gem_update_int_status(s);\n\n break;\n\n case GEM_INT_Q8_ENABLE ... GEM_INT_Q15_ENABLE:\n\n s->regs[GEM_INT_Q8_MASK + offset - GEM_INT_Q8_ENABLE] &= ~val;\n\n gem_update_int_status(s);\n\n break;\n\n case GEM_IDR:\n\n s->regs[GEM_IMR] |= val;\n\n gem_update_int_status(s);\n\n break;\n\n case GEM_INT_Q1_DISABLE ... GEM_INT_Q7_DISABLE:\n\n s->regs[GEM_INT_Q1_MASK + offset - GEM_INT_Q1_DISABLE] |= val;\n\n gem_update_int_status(s);\n\n break;\n\n case GEM_INT_Q8_DISABLE ... GEM_INT_Q15_DISABLE:\n\n s->regs[GEM_INT_Q8_MASK + offset - GEM_INT_Q8_DISABLE] |= val;\n\n gem_update_int_status(s);\n\n break;\n\n case GEM_SPADDR1LO:\n\n case GEM_SPADDR2LO:\n\n case GEM_SPADDR3LO:\n\n case GEM_SPADDR4LO:\n\n s->sar_active[(offset - GEM_SPADDR1LO) / 2] = false;\n\n break;\n\n case GEM_SPADDR1HI:\n\n case GEM_SPADDR2HI:\n\n case GEM_SPADDR3HI:\n\n case GEM_SPADDR4HI:\n\n s->sar_active[(offset - GEM_SPADDR1HI) / 2] = true;\n\n break;\n\n case GEM_PHYMNTNC:\n\n if (val & GEM_PHYMNTNC_OP_W) {\n\n uint32_t phy_addr, reg_num;\n\n\n\n phy_addr = (val & GEM_PHYMNTNC_ADDR) >> GEM_PHYMNTNC_ADDR_SHFT;\n\n if (phy_addr == BOARD_PHY_ADDRESS || phy_addr == 0) {\n\n reg_num = (val & GEM_PHYMNTNC_REG) >> GEM_PHYMNTNC_REG_SHIFT;\n\n gem_phy_write(s, reg_num, val);\n\n }\n\n }\n\n break;\n\n }\n\n\n\n DB_PRINT(\"newval: 0x%08x\\n\", s->regs[offset]);\n\n}\n", + "output": "1", + "index": 17442 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void id3v2_parse(AVFormatContext *s, int len, uint8_t version,\n\n uint8_t flags, ID3v2ExtraMeta **extra_meta)\n\n{\n\n int isv34, tlen, unsync;\n\n char tag[5];\n\n int64_t next, end = avio_tell(s->pb) + len;\n\n int taghdrlen;\n\n const char *reason = NULL;\n\n AVIOContext pb;\n\n AVIOContext *pbx;\n\n unsigned char *buffer = NULL;\n\n int buffer_size = 0;\n\n const ID3v2EMFunc *extra_func;\n\n\n\n switch (version) {\n\n case 2:\n\n if (flags & 0x40) {\n\n reason = \"compression\";\n\n goto error;\n\n }\n\n isv34 = 0;\n\n taghdrlen = 6;\n\n break;\n\n\n\n case 3:\n\n case 4:\n\n isv34 = 1;\n\n taghdrlen = 10;\n\n break;\n\n\n\n default:\n\n reason = \"version\";\n\n goto error;\n\n }\n\n\n\n unsync = flags & 0x80;\n\n\n\n if (isv34 && flags & 0x40) { /* Extended header present, just skip over it */\n\n int extlen = get_size(s->pb, 4);\n\n if (version == 4)\n\n /* In v2.4 the length includes the length field we just read. */\n\n extlen -= 4;\n\n\n\n if (extlen < 0) {\n\n reason = \"invalid extended header length\";\n\n goto error;\n\n }\n\n avio_skip(s->pb, extlen);\n\n }\n\n\n\n while (len >= taghdrlen) {\n\n unsigned int tflags = 0;\n\n int tunsync = 0;\n\n\n\n if (isv34) {\n\n avio_read(s->pb, tag, 4);\n\n tag[4] = 0;\n\n if (version == 3) {\n\n tlen = avio_rb32(s->pb);\n\n } else\n\n tlen = get_size(s->pb, 4);\n\n tflags = avio_rb16(s->pb);\n\n tunsync = tflags & ID3v2_FLAG_UNSYNCH;\n\n } else {\n\n avio_read(s->pb, tag, 3);\n\n tag[3] = 0;\n\n tlen = avio_rb24(s->pb);\n\n }\n\n if (tlen < 0 || tlen > len - taghdrlen) {\n\n av_log(s, AV_LOG_WARNING,\n\n \"Invalid size in frame %s, skipping the rest of tag.\\n\",\n\n tag);\n\n break;\n\n }\n\n len -= taghdrlen + tlen;\n\n next = avio_tell(s->pb) + tlen;\n\n\n\n if (!tlen) {\n\n if (tag[0])\n\n av_log(s, AV_LOG_DEBUG, \"Invalid empty frame %s, skipping.\\n\",\n\n tag);\n\n continue;\n\n }\n\n\n\n if (tflags & ID3v2_FLAG_DATALEN) {\n\n avio_rb32(s->pb);\n\n tlen -= 4;\n\n }\n\n\n\n if (tflags & (ID3v2_FLAG_ENCRYPTION | ID3v2_FLAG_COMPRESSION)) {\n\n av_log(s, AV_LOG_WARNING,\n\n \"Skipping encrypted/compressed ID3v2 frame %s.\\n\", tag);\n\n avio_skip(s->pb, tlen);\n\n /* check for text tag or supported special meta tag */\n\n } else if (tag[0] == 'T' ||\n\n (extra_meta &&\n\n (extra_func = get_extra_meta_func(tag, isv34)))) {\n\n if (unsync || tunsync) {\n\n int64_t end = avio_tell(s->pb) + tlen;\n\n uint8_t *b;\n\n av_fast_malloc(&buffer, &buffer_size, tlen);\n\n if (!buffer) {\n\n av_log(s, AV_LOG_ERROR, \"Failed to alloc %d bytes\\n\", tlen);\n\n goto seek;\n\n }\n\n b = buffer;\n\n while (avio_tell(s->pb) < end) {\n\n *b++ = avio_r8(s->pb);\n\n if (*(b - 1) == 0xff && avio_tell(s->pb) < end - 1) {\n\n uint8_t val = avio_r8(s->pb);\n\n *b++ = val ? val : avio_r8(s->pb);\n\n }\n\n }\n\n ffio_init_context(&pb, buffer, b - buffer, 0, NULL, NULL, NULL,\n\n NULL);\n\n tlen = b - buffer;\n\n pbx = &pb; // read from sync buffer\n\n } else {\n\n pbx = s->pb; // read straight from input\n\n }\n\n if (tag[0] == 'T')\n\n /* parse text tag */\n\n read_ttag(s, pbx, tlen, tag);\n\n else\n\n /* parse special meta tag */\n\n extra_func->read(s, pbx, tlen, tag, extra_meta);\n\n } else if (!tag[0]) {\n\n if (tag[1])\n\n av_log(s, AV_LOG_WARNING, \"invalid frame id, assuming padding\");\n\n avio_skip(s->pb, tlen);\n\n break;\n\n }\n\n /* Skip to end of tag */\n\nseek:\n\n avio_seek(s->pb, next, SEEK_SET);\n\n }\n\n\n\n /* Footer preset, always 10 bytes, skip over it */\n\n if (version == 4 && flags & 0x10)\n\n end += 10;\n\n\n\nerror:\n\n if (reason)\n\n av_log(s, AV_LOG_INFO, \"ID3v2.%d tag skipped, cannot handle %s\\n\",\n\n version, reason);\n\n avio_seek(s->pb, end, SEEK_SET);\n\n av_free(buffer);\n\n return;\n\n}\n", + "output": "0", + "index": 14021 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void avc_loopfilter_luma_intra_edge_hor_msa(uint8_t *data,\n\n uint8_t alpha_in,\n\n uint8_t beta_in,\n\n uint32_t img_width)\n\n{\n\n v16u8 p2_asub_p0, q2_asub_q0, p0_asub_q0;\n\n v16u8 alpha, beta;\n\n v16u8 is_less_than, is_less_than_beta, negate_is_less_than_beta;\n\n v16u8 p2, p1, p0, q0, q1, q2;\n\n v16u8 p3_org, p2_org, p1_org, p0_org, q0_org, q1_org, q2_org, q3_org;\n\n v8i16 p1_org_r, p0_org_r, q0_org_r, q1_org_r;\n\n v8i16 p1_org_l, p0_org_l, q0_org_l, q1_org_l;\n\n v8i16 p2_r = { 0 };\n\n v8i16 p1_r = { 0 };\n\n v8i16 p0_r = { 0 };\n\n v8i16 q0_r = { 0 };\n\n v8i16 q1_r = { 0 };\n\n v8i16 q2_r = { 0 };\n\n v8i16 p2_l = { 0 };\n\n v8i16 p1_l = { 0 };\n\n v8i16 p0_l = { 0 };\n\n v8i16 q0_l = { 0 };\n\n v8i16 q1_l = { 0 };\n\n v8i16 q2_l = { 0 };\n\n v16u8 tmp_flag;\n\n v16i8 zero = { 0 };\n\n\n\n alpha = (v16u8) __msa_fill_b(alpha_in);\n\n beta = (v16u8) __msa_fill_b(beta_in);\n\n\n\n p1_org = LOAD_UB(data - (img_width << 1));\n\n p0_org = LOAD_UB(data - img_width);\n\n q0_org = LOAD_UB(data);\n\n q1_org = LOAD_UB(data + img_width);\n\n\n\n {\n\n v16u8 p1_asub_p0, q1_asub_q0, is_less_than_alpha;\n\n\n\n p0_asub_q0 = __msa_asub_u_b(p0_org, q0_org);\n\n p1_asub_p0 = __msa_asub_u_b(p1_org, p0_org);\n\n q1_asub_q0 = __msa_asub_u_b(q1_org, q0_org);\n\n\n\n is_less_than_alpha = (p0_asub_q0 < alpha);\n\n is_less_than_beta = (p1_asub_p0 < beta);\n\n is_less_than = is_less_than_beta & is_less_than_alpha;\n\n is_less_than_beta = (q1_asub_q0 < beta);\n\n is_less_than = is_less_than_beta & is_less_than;\n\n }\n\n\n\n if (!__msa_test_bz_v(is_less_than)) {\n\n q2_org = LOAD_UB(data + (2 * img_width));\n\n p3_org = LOAD_UB(data - (img_width << 2));\n\n p2_org = LOAD_UB(data - (3 * img_width));\n\n\n\n p1_org_r = (v8i16) __msa_ilvr_b(zero, (v16i8) p1_org);\n\n p0_org_r = (v8i16) __msa_ilvr_b(zero, (v16i8) p0_org);\n\n q0_org_r = (v8i16) __msa_ilvr_b(zero, (v16i8) q0_org);\n\n\n\n p1_org_l = (v8i16) __msa_ilvl_b(zero, (v16i8) p1_org);\n\n p0_org_l = (v8i16) __msa_ilvl_b(zero, (v16i8) p0_org);\n\n q0_org_l = (v8i16) __msa_ilvl_b(zero, (v16i8) q0_org);\n\n\n\n tmp_flag = alpha >> 2;\n\n tmp_flag = tmp_flag + 2;\n\n tmp_flag = (p0_asub_q0 < tmp_flag);\n\n\n\n p2_asub_p0 = __msa_asub_u_b(p2_org, p0_org);\n\n is_less_than_beta = (p2_asub_p0 < beta);\n\n is_less_than_beta = is_less_than_beta & tmp_flag;\n\n\n\n negate_is_less_than_beta = __msa_xori_b(is_less_than_beta, 0xff);\n\n is_less_than_beta = is_less_than_beta & is_less_than;\n\n negate_is_less_than_beta = negate_is_less_than_beta & is_less_than;\n\n\n\n {\n\n v8u16 is_less_than_beta_l, is_less_than_beta_r;\n\n\n\n q1_org_r = (v8i16) __msa_ilvr_b(zero, (v16i8) q1_org);\n\n\n\n is_less_than_beta_r =\n\n (v8u16) __msa_sldi_b((v16i8) is_less_than_beta, zero, 8);\n\n if (!__msa_test_bz_v((v16u8) is_less_than_beta_r)) {\n\n v8i16 p3_org_r;\n\n\n\n p3_org_r = (v8i16) __msa_ilvr_b(zero, (v16i8) p3_org);\n\n p2_r = (v8i16) __msa_ilvr_b(zero, (v16i8) p2_org);\n\n\n\n AVC_LOOP_FILTER_P0P1P2_OR_Q0Q1Q2(p3_org_r, p0_org_r,\n\n q0_org_r, p1_org_r,\n\n p2_r, q1_org_r,\n\n p0_r, p1_r, p2_r);\n\n }\n\n\n\n q1_org_l = (v8i16) __msa_ilvl_b(zero, (v16i8) q1_org);\n\n\n\n is_less_than_beta_l =\n\n (v8u16) __msa_sldi_b(zero, (v16i8) is_less_than_beta, 8);\n\n\n\n if (!__msa_test_bz_v((v16u8) is_less_than_beta_l)) {\n\n v8i16 p3_org_l;\n\n\n\n p3_org_l = (v8i16) __msa_ilvl_b(zero, (v16i8) p3_org);\n\n p2_l = (v8i16) __msa_ilvl_b(zero, (v16i8) p2_org);\n\n\n\n AVC_LOOP_FILTER_P0P1P2_OR_Q0Q1Q2(p3_org_l, p0_org_l,\n\n q0_org_l, p1_org_l,\n\n p2_l, q1_org_l,\n\n p0_l, p1_l, p2_l);\n\n }\n\n }\n\n\n\n /* combine and store */\n\n if (!__msa_test_bz_v(is_less_than_beta)) {\n\n p0 = (v16u8) __msa_pckev_b((v16i8) p0_l, (v16i8) p0_r);\n\n p1 = (v16u8) __msa_pckev_b((v16i8) p1_l, (v16i8) p1_r);\n\n p2 = (v16u8) __msa_pckev_b((v16i8) p2_l, (v16i8) p2_r);\n\n\n\n p0_org = __msa_bmnz_v(p0_org, p0, is_less_than_beta);\n\n p1_org = __msa_bmnz_v(p1_org, p1, is_less_than_beta);\n\n p2_org = __msa_bmnz_v(p2_org, p2, is_less_than_beta);\n\n\n\n STORE_UB(p1_org, data - (2 * img_width));\n\n STORE_UB(p2_org, data - (3 * img_width));\n\n }\n\n\n\n {\n\n v8u16 negate_is_less_than_beta_r, negate_is_less_than_beta_l;\n\n\n\n negate_is_less_than_beta_r =\n\n (v8u16) __msa_sldi_b((v16i8) negate_is_less_than_beta, zero, 8);\n\n if (!__msa_test_bz_v((v16u8) negate_is_less_than_beta_r)) {\n\n AVC_LOOP_FILTER_P0_OR_Q0(p0_org_r, q1_org_r, p1_org_r, p0_r);\n\n }\n\n\n\n negate_is_less_than_beta_l =\n\n (v8u16) __msa_sldi_b(zero, (v16i8) negate_is_less_than_beta, 8);\n\n if (!__msa_test_bz_v((v16u8) negate_is_less_than_beta_l)) {\n\n AVC_LOOP_FILTER_P0_OR_Q0(p0_org_l, q1_org_l, p1_org_l, p0_l);\n\n }\n\n }\n\n\n\n /* combine */\n\n if (!__msa_test_bz_v(negate_is_less_than_beta)) {\n\n p0 = (v16u8) __msa_pckev_b((v16i8) p0_l, (v16i8) p0_r);\n\n p0_org = __msa_bmnz_v(p0_org, p0, negate_is_less_than_beta);\n\n }\n\n\n\n STORE_UB(p0_org, data - img_width);\n\n\n\n /* if (tmpFlag && (unsigned)ABS(q2-q0) < thresholds->beta_in) */\n\n\n\n q3_org = LOAD_UB(data + (3 * img_width));\n\n\n\n q2_asub_q0 = __msa_asub_u_b(q2_org, q0_org);\n\n is_less_than_beta = (q2_asub_q0 < beta);\n\n is_less_than_beta = is_less_than_beta & tmp_flag;\n\n negate_is_less_than_beta = __msa_xori_b(is_less_than_beta, 0xff);\n\n is_less_than_beta = is_less_than_beta & is_less_than;\n\n negate_is_less_than_beta = negate_is_less_than_beta & is_less_than;\n\n\n\n {\n\n v8u16 is_less_than_beta_l, is_less_than_beta_r;\n\n\n\n is_less_than_beta_r =\n\n (v8u16) __msa_sldi_b((v16i8) is_less_than_beta, zero, 8);\n\n if (!__msa_test_bz_v((v16u8) is_less_than_beta_r)) {\n\n v8i16 q3_org_r;\n\n\n\n q3_org_r = (v8i16) __msa_ilvr_b(zero, (v16i8) q3_org);\n\n q2_r = (v8i16) __msa_ilvr_b(zero, (v16i8) q2_org);\n\n\n\n AVC_LOOP_FILTER_P0P1P2_OR_Q0Q1Q2(q3_org_r, q0_org_r,\n\n p0_org_r, q1_org_r,\n\n q2_r, p1_org_r,\n\n q0_r, q1_r, q2_r);\n\n }\n\n\n\n is_less_than_beta_l =\n\n (v8u16) __msa_sldi_b(zero, (v16i8) is_less_than_beta, 8);\n\n if (!__msa_test_bz_v((v16u8) is_less_than_beta_l)) {\n\n v8i16 q3_org_l;\n\n\n\n q3_org_l = (v8i16) __msa_ilvl_b(zero, (v16i8) q3_org);\n\n q2_l = (v8i16) __msa_ilvl_b(zero, (v16i8) q2_org);\n\n\n\n AVC_LOOP_FILTER_P0P1P2_OR_Q0Q1Q2(q3_org_l, q0_org_l,\n\n p0_org_l, q1_org_l,\n\n q2_l, p1_org_l,\n\n q0_l, q1_l, q2_l);\n\n }\n\n }\n\n\n\n /* combine and store */\n\n if (!__msa_test_bz_v(is_less_than_beta)) {\n\n q0 = (v16u8) __msa_pckev_b((v16i8) q0_l, (v16i8) q0_r);\n\n q1 = (v16u8) __msa_pckev_b((v16i8) q1_l, (v16i8) q1_r);\n\n q2 = (v16u8) __msa_pckev_b((v16i8) q2_l, (v16i8) q2_r);\n\n\n\n q0_org = __msa_bmnz_v(q0_org, q0, is_less_than_beta);\n\n q1_org = __msa_bmnz_v(q1_org, q1, is_less_than_beta);\n\n q2_org = __msa_bmnz_v(q2_org, q2, is_less_than_beta);\n\n\n\n STORE_UB(q1_org, data + img_width);\n\n STORE_UB(q2_org, data + 2 * img_width);\n\n }\n\n\n\n {\n\n v8u16 negate_is_less_than_beta_r, negate_is_less_than_beta_l;\n\n\n\n negate_is_less_than_beta_r =\n\n (v8u16) __msa_sldi_b((v16i8) negate_is_less_than_beta, zero, 8);\n\n if (!__msa_test_bz_v((v16u8) negate_is_less_than_beta_r)) {\n\n AVC_LOOP_FILTER_P0_OR_Q0(q0_org_r, p1_org_r, q1_org_r, q0_r);\n\n }\n\n\n\n negate_is_less_than_beta_l =\n\n (v8u16) __msa_sldi_b(zero, (v16i8) negate_is_less_than_beta, 8);\n\n if (!__msa_test_bz_v((v16u8) negate_is_less_than_beta_l)) {\n\n AVC_LOOP_FILTER_P0_OR_Q0(q0_org_l, p1_org_l, q1_org_l, q0_l);\n\n }\n\n }\n\n\n\n /* combine */\n\n if (!__msa_test_bz_v(negate_is_less_than_beta)) {\n\n q0 = (v16u8) __msa_pckev_b((v16i8) q0_l, (v16i8) q0_r);\n\n q0_org = __msa_bmnz_v(q0_org, q0, negate_is_less_than_beta);\n\n }\n\n\n\n STORE_UB(q0_org, data);\n\n }\n\n}\n", + "output": "0", + "index": 5007 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "void ff_snow_horizontal_compose97i_sse2(IDWTELEM *b, int width){\n\n const int w2= (width+1)>>1;\n\n // SSE2 code runs faster with pointers aligned on a 32-byte boundary.\n\n IDWTELEM temp_buf[(width>>1) + 4];\n\n IDWTELEM * const temp = temp_buf + 4 - (((int)temp_buf & 0xF) >> 2);\n\n const int w_l= (width>>1);\n\n const int w_r= w2 - 1;\n\n int i;\n\n\n\n { // Lift 0\n\n IDWTELEM * const ref = b + w2 - 1;\n\n IDWTELEM b_0 = b[0]; //By allowing the first entry in b[0] to be calculated twice\n\n // (the first time erroneously), we allow the SSE2 code to run an extra pass.\n\n // The savings in code and time are well worth having to store this value and\n\n // calculate b[0] correctly afterwards.\n\n\n\n i = 0;\n\n asm volatile(\n\n \"pcmpeqd %%xmm7, %%xmm7 \\n\\t\"\n\n \"pcmpeqd %%xmm3, %%xmm3 \\n\\t\"\n\n \"psllw $1, %%xmm3 \\n\\t\"\n\n \"paddw %%xmm7, %%xmm3 \\n\\t\"\n\n \"psllw $13, %%xmm3 \\n\\t\"\n\n ::);\n\n for(; i>W_DS);\n\n }\n\n\n\n { // Lift 1\n\n IDWTELEM * const dst = b+w2;\n\n\n\n i = 0;\n\n for(; (((long)&dst[i]) & 0x1F) && i> W_BS);\n\n }\n\n\n\n { // Lift 3\n\n IDWTELEM * const src = b+w2;\n\n\n\n i = 0;\n\n for(; (((long)&temp[i]) & 0x1F) && i>W_AS);\n\n }\n\n for(; i>1];\n\n b[i] = b[i>>1];\n\n }\n\n for (i-=62; i>=0; i-=64){\n\n asm volatile(\n\n \"movdqa (%1), %%xmm0 \\n\\t\"\n\n \"movdqa 16(%1), %%xmm2 \\n\\t\"\n\n \"movdqa 32(%1), %%xmm4 \\n\\t\"\n\n \"movdqa 48(%1), %%xmm6 \\n\\t\"\n\n \"movdqa (%1), %%xmm1 \\n\\t\"\n\n \"movdqa 16(%1), %%xmm3 \\n\\t\"\n\n \"movdqa 32(%1), %%xmm5 \\n\\t\"\n\n \"movdqa 48(%1), %%xmm7 \\n\\t\"\n\n \"punpcklwd (%2), %%xmm0 \\n\\t\"\n\n \"punpcklwd 16(%2), %%xmm2 \\n\\t\"\n\n \"punpcklwd 32(%2), %%xmm4 \\n\\t\"\n\n \"punpcklwd 48(%2), %%xmm6 \\n\\t\"\n\n \"movdqa %%xmm0, (%0) \\n\\t\"\n\n \"movdqa %%xmm2, 32(%0) \\n\\t\"\n\n \"movdqa %%xmm4, 64(%0) \\n\\t\"\n\n \"movdqa %%xmm6, 96(%0) \\n\\t\"\n\n \"punpckhwd (%2), %%xmm1 \\n\\t\"\n\n \"punpckhwd 16(%2), %%xmm3 \\n\\t\"\n\n \"punpckhwd 32(%2), %%xmm5 \\n\\t\"\n\n \"punpckhwd 48(%2), %%xmm7 \\n\\t\"\n\n \"movdqa %%xmm1, 16(%0) \\n\\t\"\n\n \"movdqa %%xmm3, 48(%0) \\n\\t\"\n\n \"movdqa %%xmm5, 80(%0) \\n\\t\"\n\n \"movdqa %%xmm7, 112(%0) \\n\\t\"\n\n :: \"r\"(&(b)[i]), \"r\"(&(b)[i>>1]), \"r\"(&(temp)[i>>1])\n\n : \"memory\"\n\n );\n\n }\n\n }\n\n}\n", + "output": "1", + "index": 16210 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int swScale(SwsContext *c, const uint8_t* src[],\n\n int srcStride[], int srcSliceY,\n\n int srcSliceH, uint8_t* dst[], int dstStride[])\n\n{\n\n /* load a few things into local vars to make the code more readable? and faster */\n\n const int srcW= c->srcW;\n\n const int dstW= c->dstW;\n\n const int dstH= c->dstH;\n\n const int chrDstW= c->chrDstW;\n\n const int chrSrcW= c->chrSrcW;\n\n const int lumXInc= c->lumXInc;\n\n const int chrXInc= c->chrXInc;\n\n const enum PixelFormat dstFormat= c->dstFormat;\n\n const int flags= c->flags;\n\n int16_t *vLumFilterPos= c->vLumFilterPos;\n\n int16_t *vChrFilterPos= c->vChrFilterPos;\n\n int16_t *hLumFilterPos= c->hLumFilterPos;\n\n int16_t *hChrFilterPos= c->hChrFilterPos;\n\n int16_t *vLumFilter= c->vLumFilter;\n\n int16_t *vChrFilter= c->vChrFilter;\n\n int16_t *hLumFilter= c->hLumFilter;\n\n int16_t *hChrFilter= c->hChrFilter;\n\n int32_t *lumMmxFilter= c->lumMmxFilter;\n\n int32_t *chrMmxFilter= c->chrMmxFilter;\n\n const int vLumFilterSize= c->vLumFilterSize;\n\n const int vChrFilterSize= c->vChrFilterSize;\n\n const int hLumFilterSize= c->hLumFilterSize;\n\n const int hChrFilterSize= c->hChrFilterSize;\n\n int16_t **lumPixBuf= c->lumPixBuf;\n\n int16_t **chrUPixBuf= c->chrUPixBuf;\n\n int16_t **chrVPixBuf= c->chrVPixBuf;\n\n int16_t **alpPixBuf= c->alpPixBuf;\n\n const int vLumBufSize= c->vLumBufSize;\n\n const int vChrBufSize= c->vChrBufSize;\n\n uint8_t *formatConvBuffer= c->formatConvBuffer;\n\n const int chrSrcSliceY= srcSliceY >> c->chrSrcVSubSample;\n\n const int chrSrcSliceH= -((-srcSliceH) >> c->chrSrcVSubSample);\n\n int lastDstY;\n\n uint32_t *pal=c->pal_yuv;\n\n yuv2planar1_fn yuv2plane1 = c->yuv2plane1;\n\n yuv2planarX_fn yuv2planeX = c->yuv2planeX;\n\n yuv2interleavedX_fn yuv2nv12cX = c->yuv2nv12cX;\n\n yuv2packed1_fn yuv2packed1 = c->yuv2packed1;\n\n yuv2packed2_fn yuv2packed2 = c->yuv2packed2;\n\n yuv2packedX_fn yuv2packedX = c->yuv2packedX;\n\n int should_dither = is9_OR_10BPS(c->srcFormat) || is16BPS(c->srcFormat);\n\n\n\n /* vars which will change and which we need to store back in the context */\n\n int dstY= c->dstY;\n\n int lumBufIndex= c->lumBufIndex;\n\n int chrBufIndex= c->chrBufIndex;\n\n int lastInLumBuf= c->lastInLumBuf;\n\n int lastInChrBuf= c->lastInChrBuf;\n\n\n\n if (isPacked(c->srcFormat)) {\n\n src[0]=\n\n src[1]=\n\n src[2]=\n\n src[3]= src[0];\n\n srcStride[0]=\n\n srcStride[1]=\n\n srcStride[2]=\n\n srcStride[3]= srcStride[0];\n\n }\n\n srcStride[1]<<= c->vChrDrop;\n\n srcStride[2]<<= c->vChrDrop;\n\n\n\n DEBUG_BUFFERS(\"swScale() %p[%d] %p[%d] %p[%d] %p[%d] -> %p[%d] %p[%d] %p[%d] %p[%d]\\n\",\n\n src[0], srcStride[0], src[1], srcStride[1], src[2], srcStride[2], src[3], srcStride[3],\n\n dst[0], dstStride[0], dst[1], dstStride[1], dst[2], dstStride[2], dst[3], dstStride[3]);\n\n DEBUG_BUFFERS(\"srcSliceY: %d srcSliceH: %d dstY: %d dstH: %d\\n\",\n\n srcSliceY, srcSliceH, dstY, dstH);\n\n DEBUG_BUFFERS(\"vLumFilterSize: %d vLumBufSize: %d vChrFilterSize: %d vChrBufSize: %d\\n\",\n\n vLumFilterSize, vLumBufSize, vChrFilterSize, vChrBufSize);\n\n\n\n if (dstStride[0]%8 !=0 || dstStride[1]%8 !=0 || dstStride[2]%8 !=0 || dstStride[3]%8 != 0) {\n\n static int warnedAlready=0; //FIXME move this into the context perhaps\n\n if (flags & SWS_PRINT_INFO && !warnedAlready) {\n\n av_log(c, AV_LOG_WARNING, \"Warning: dstStride is not aligned!\\n\"\n\n \" ->cannot do aligned memory accesses anymore\\n\");\n\n warnedAlready=1;\n\n }\n\n }\n\n\n\n /* Note the user might start scaling the picture in the middle so this\n\n will not get executed. This is not really intended but works\n\n currently, so people might do it. */\n\n if (srcSliceY ==0) {\n\n lumBufIndex=-1;\n\n chrBufIndex=-1;\n\n dstY=0;\n\n lastInLumBuf= -1;\n\n lastInChrBuf= -1;\n\n }\n\n\n\n if (!should_dither) {\n\n c->chrDither8 = c->lumDither8 = ff_sws_pb_64;\n\n }\n\n lastDstY= dstY;\n\n\n\n for (;dstY < dstH; dstY++) {\n\n const int chrDstY= dstY>>c->chrDstVSubSample;\n\n uint8_t *dest[4] = {\n\n dst[0] + dstStride[0] * dstY,\n\n dst[1] + dstStride[1] * chrDstY,\n\n dst[2] + dstStride[2] * chrDstY,\n\n (CONFIG_SWSCALE_ALPHA && alpPixBuf) ? dst[3] + dstStride[3] * dstY : NULL,\n\n };\n\n\n\n const int firstLumSrcY= FFMAX(1 - vLumFilterSize, vLumFilterPos[dstY]); //First line needed as input\n\n const int firstLumSrcY2= FFMAX(1 - vLumFilterSize, vLumFilterPos[FFMIN(dstY | ((1<chrDstVSubSample) - 1), dstH-1)]);\n\n const int firstChrSrcY= FFMAX(1 - vChrFilterSize, vChrFilterPos[chrDstY]); //First line needed as input\n\n\n\n // Last line needed as input\n\n int lastLumSrcY = FFMIN(c->srcH, firstLumSrcY + vLumFilterSize) - 1;\n\n int lastLumSrcY2 = FFMIN(c->srcH, firstLumSrcY2 + vLumFilterSize) - 1;\n\n int lastChrSrcY = FFMIN(c->chrSrcH, firstChrSrcY + vChrFilterSize) - 1;\n\n int enough_lines;\n\n\n\n //handle holes (FAST_BILINEAR & weird filters)\n\n if (firstLumSrcY > lastInLumBuf) lastInLumBuf= firstLumSrcY-1;\n\n if (firstChrSrcY > lastInChrBuf) lastInChrBuf= firstChrSrcY-1;\n\n assert(firstLumSrcY >= lastInLumBuf - vLumBufSize + 1);\n\n assert(firstChrSrcY >= lastInChrBuf - vChrBufSize + 1);\n\n\n\n DEBUG_BUFFERS(\"dstY: %d\\n\", dstY);\n\n DEBUG_BUFFERS(\"\\tfirstLumSrcY: %d lastLumSrcY: %d lastInLumBuf: %d\\n\",\n\n firstLumSrcY, lastLumSrcY, lastInLumBuf);\n\n DEBUG_BUFFERS(\"\\tfirstChrSrcY: %d lastChrSrcY: %d lastInChrBuf: %d\\n\",\n\n firstChrSrcY, lastChrSrcY, lastInChrBuf);\n\n\n\n // Do we have enough lines in this slice to output the dstY line\n\n enough_lines = lastLumSrcY2 < srcSliceY + srcSliceH && lastChrSrcY < -((-srcSliceY - srcSliceH)>>c->chrSrcVSubSample);\n\n\n\n if (!enough_lines) {\n\n lastLumSrcY = srcSliceY + srcSliceH - 1;\n\n lastChrSrcY = chrSrcSliceY + chrSrcSliceH - 1;\n\n DEBUG_BUFFERS(\"buffering slice: lastLumSrcY %d lastChrSrcY %d\\n\",\n\n lastLumSrcY, lastChrSrcY);\n\n }\n\n\n\n //Do horizontal scaling\n\n while(lastInLumBuf < lastLumSrcY) {\n\n const uint8_t *src1[4] = {\n\n src[0] + (lastInLumBuf + 1 - srcSliceY) * srcStride[0],\n\n src[1] + (lastInLumBuf + 1 - srcSliceY) * srcStride[1],\n\n src[2] + (lastInLumBuf + 1 - srcSliceY) * srcStride[2],\n\n src[3] + (lastInLumBuf + 1 - srcSliceY) * srcStride[3],\n\n };\n\n lumBufIndex++;\n\n assert(lumBufIndex < 2*vLumBufSize);\n\n assert(lastInLumBuf + 1 - srcSliceY < srcSliceH);\n\n assert(lastInLumBuf + 1 - srcSliceY >= 0);\n\n hyscale(c, lumPixBuf[ lumBufIndex ], dstW, src1, srcW, lumXInc,\n\n hLumFilter, hLumFilterPos, hLumFilterSize,\n\n formatConvBuffer,\n\n pal, 0);\n\n if (CONFIG_SWSCALE_ALPHA && alpPixBuf)\n\n hyscale(c, alpPixBuf[ lumBufIndex ], dstW, src1, srcW,\n\n lumXInc, hLumFilter, hLumFilterPos, hLumFilterSize,\n\n formatConvBuffer,\n\n pal, 1);\n\n lastInLumBuf++;\n\n DEBUG_BUFFERS(\"\\t\\tlumBufIndex %d: lastInLumBuf: %d\\n\",\n\n lumBufIndex, lastInLumBuf);\n\n }\n\n while(lastInChrBuf < lastChrSrcY) {\n\n const uint8_t *src1[4] = {\n\n src[0] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[0],\n\n src[1] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[1],\n\n src[2] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[2],\n\n src[3] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[3],\n\n };\n\n chrBufIndex++;\n\n assert(chrBufIndex < 2*vChrBufSize);\n\n assert(lastInChrBuf + 1 - chrSrcSliceY < (chrSrcSliceH));\n\n assert(lastInChrBuf + 1 - chrSrcSliceY >= 0);\n\n //FIXME replace parameters through context struct (some at least)\n\n\n\n if (c->needs_hcscale)\n\n hcscale(c, chrUPixBuf[chrBufIndex], chrVPixBuf[chrBufIndex],\n\n chrDstW, src1, chrSrcW, chrXInc,\n\n hChrFilter, hChrFilterPos, hChrFilterSize,\n\n formatConvBuffer, pal);\n\n lastInChrBuf++;\n\n DEBUG_BUFFERS(\"\\t\\tchrBufIndex %d: lastInChrBuf: %d\\n\",\n\n chrBufIndex, lastInChrBuf);\n\n }\n\n //wrap buf index around to stay inside the ring buffer\n\n if (lumBufIndex >= vLumBufSize) lumBufIndex-= vLumBufSize;\n\n if (chrBufIndex >= vChrBufSize) chrBufIndex-= vChrBufSize;\n\n if (!enough_lines)\n\n break; //we can't output a dstY line so let's try with the next slice\n\n\n\n#if HAVE_MMX\n\n updateMMXDitherTables(c, dstY, lumBufIndex, chrBufIndex, lastInLumBuf, lastInChrBuf);\n\n#endif\n\n if (should_dither) {\n\n c->chrDither8 = dither_8x8_128[chrDstY & 7];\n\n c->lumDither8 = dither_8x8_128[dstY & 7];\n\n }\n\n if (dstY >= dstH-2) {\n\n // hmm looks like we can't use MMX here without overwriting this array's tail\n\n ff_sws_init_output_funcs(c, &yuv2plane1, &yuv2planeX, &yuv2nv12cX,\n\n &yuv2packed1, &yuv2packed2, &yuv2packedX);\n\n }\n\n\n\n {\n\n const int16_t **lumSrcPtr= (const int16_t **) lumPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize;\n\n const int16_t **chrUSrcPtr= (const int16_t **) chrUPixBuf + chrBufIndex + firstChrSrcY - lastInChrBuf + vChrBufSize;\n\n const int16_t **chrVSrcPtr= (const int16_t **) chrVPixBuf + chrBufIndex + firstChrSrcY - lastInChrBuf + vChrBufSize;\n\n const int16_t **alpSrcPtr= (CONFIG_SWSCALE_ALPHA && alpPixBuf) ? (const int16_t **) alpPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize : NULL;\n\n\n\n if (firstLumSrcY < 0 || firstLumSrcY + vLumFilterSize > c->srcH) {\n\n const int16_t **tmpY = (const int16_t **) lumPixBuf + 2 * vLumBufSize;\n\n int neg = -firstLumSrcY, i, end = FFMIN(c->srcH - firstLumSrcY, vLumFilterSize);\n\n for (i = 0; i < neg; i++)\n\n tmpY[i] = lumSrcPtr[neg];\n\n for ( ; i < end; i++)\n\n tmpY[i] = lumSrcPtr[i];\n\n for ( ; i < vLumFilterSize; i++)\n\n tmpY[i] = tmpY[i-1];\n\n lumSrcPtr = tmpY;\n\n\n\n if (alpSrcPtr) {\n\n const int16_t **tmpA = (const int16_t **) alpPixBuf + 2 * vLumBufSize;\n\n for (i = 0; i < neg; i++)\n\n tmpA[i] = alpSrcPtr[neg];\n\n for ( ; i < end; i++)\n\n tmpA[i] = alpSrcPtr[i];\n\n for ( ; i < vLumFilterSize; i++)\n\n tmpA[i] = tmpA[i - 1];\n\n alpSrcPtr = tmpA;\n\n }\n\n }\n\n if (firstChrSrcY < 0 || firstChrSrcY + vChrFilterSize > c->chrSrcH) {\n\n const int16_t **tmpU = (const int16_t **) chrUPixBuf + 2 * vChrBufSize,\n\n **tmpV = (const int16_t **) chrVPixBuf + 2 * vChrBufSize;\n\n int neg = -firstChrSrcY, i, end = FFMIN(c->chrSrcH - firstChrSrcY, vChrFilterSize);\n\n for (i = 0; i < neg; i++) {\n\n tmpU[i] = chrUSrcPtr[neg];\n\n tmpV[i] = chrVSrcPtr[neg];\n\n }\n\n for ( ; i < end; i++) {\n\n tmpU[i] = chrUSrcPtr[i];\n\n tmpV[i] = chrVSrcPtr[i];\n\n }\n\n for ( ; i < vChrFilterSize; i++) {\n\n tmpU[i] = tmpU[i - 1];\n\n tmpV[i] = tmpV[i - 1];\n\n }\n\n chrUSrcPtr = tmpU;\n\n chrVSrcPtr = tmpV;\n\n }\n\n\n\n if (isPlanarYUV(dstFormat) || (isGray(dstFormat) && !isALPHA(dstFormat))) { //YV12 like\n\n const int chrSkipMask= (1<chrDstVSubSample)-1;\n\n\n\n if (vLumFilterSize == 1) {\n\n yuv2plane1(lumSrcPtr[0], dest[0], dstW, c->lumDither8, 0);\n\n } else {\n\n yuv2planeX(vLumFilter + dstY * vLumFilterSize, vLumFilterSize,\n\n lumSrcPtr, dest[0], dstW, c->lumDither8, 0);\n\n }\n\n\n\n if (!((dstY&chrSkipMask) || isGray(dstFormat))) {\n\n if (yuv2nv12cX) {\n\n yuv2nv12cX(c, vChrFilter + chrDstY * vChrFilterSize, vChrFilterSize, chrUSrcPtr, chrVSrcPtr, dest[1], chrDstW);\n\n } else if (vChrFilterSize == 1) {\n\n yuv2plane1(chrUSrcPtr[0], dest[1], chrDstW, c->chrDither8, 0);\n\n yuv2plane1(chrVSrcPtr[0], dest[2], chrDstW, c->chrDither8, 3);\n\n } else {\n\n yuv2planeX(vChrFilter + chrDstY * vChrFilterSize, vChrFilterSize,\n\n chrUSrcPtr, dest[1], chrDstW, c->chrDither8, 0);\n\n yuv2planeX(vChrFilter + chrDstY * vChrFilterSize, vChrFilterSize,\n\n chrVSrcPtr, dest[2], chrDstW, c->chrDither8, 3);\n\n }\n\n }\n\n\n\n if (CONFIG_SWSCALE_ALPHA && alpPixBuf){\n\n if (vLumFilterSize == 1) {\n\n yuv2plane1(alpSrcPtr[0], dest[3], dstW, c->lumDither8, 0);\n\n } else {\n\n yuv2planeX(vLumFilter + dstY * vLumFilterSize, vLumFilterSize,\n\n alpSrcPtr, dest[3], dstW, c->lumDither8, 0);\n\n }\n\n }\n\n } else {\n\n assert(lumSrcPtr + vLumFilterSize - 1 < lumPixBuf + vLumBufSize*2);\n\n assert(chrUSrcPtr + vChrFilterSize - 1 < chrUPixBuf + vChrBufSize*2);\n\n if (c->yuv2packed1 && vLumFilterSize == 1 && vChrFilterSize <= 2) { //unscaled RGB\n\n int chrAlpha = vChrFilterSize == 1 ? 0 : vChrFilter[2 * dstY + 1];\n\n yuv2packed1(c, *lumSrcPtr, chrUSrcPtr, chrVSrcPtr,\n\n alpPixBuf ? *alpSrcPtr : NULL,\n\n dest[0], dstW, chrAlpha, dstY);\n\n } else if (c->yuv2packed2 && vLumFilterSize == 2 && vChrFilterSize == 2) { //bilinear upscale RGB\n\n int lumAlpha = vLumFilter[2 * dstY + 1];\n\n int chrAlpha = vChrFilter[2 * dstY + 1];\n\n lumMmxFilter[2] =\n\n lumMmxFilter[3] = vLumFilter[2 * dstY ] * 0x10001;\n\n chrMmxFilter[2] =\n\n chrMmxFilter[3] = vChrFilter[2 * chrDstY] * 0x10001;\n\n yuv2packed2(c, lumSrcPtr, chrUSrcPtr, chrVSrcPtr,\n\n alpPixBuf ? alpSrcPtr : NULL,\n\n dest[0], dstW, lumAlpha, chrAlpha, dstY);\n\n } else { //general RGB\n\n yuv2packedX(c, vLumFilter + dstY * vLumFilterSize,\n\n lumSrcPtr, vLumFilterSize,\n\n vChrFilter + dstY * vChrFilterSize,\n\n chrUSrcPtr, chrVSrcPtr, vChrFilterSize,\n\n alpSrcPtr, dest[0], dstW, dstY);\n\n }\n\n }\n\n }\n\n }\n\n\n\n if (isPlanar(dstFormat) && isALPHA(dstFormat) && !alpPixBuf)\n\n fillPlane(dst[3], dstStride[3], dstW, dstY-lastDstY, lastDstY, 255);\n\n\n\n#if HAVE_MMX2\n\n if (av_get_cpu_flags() & AV_CPU_FLAG_MMX2)\n\n __asm__ volatile(\"sfence\":::\"memory\");\n\n#endif\n\n emms_c();\n\n\n\n /* store changed local vars back in the context */\n\n c->dstY= dstY;\n\n c->lumBufIndex= lumBufIndex;\n\n c->chrBufIndex= chrBufIndex;\n\n c->lastInLumBuf= lastInLumBuf;\n\n c->lastInChrBuf= lastInChrBuf;\n\n\n\n return dstY - lastDstY;\n\n}\n", + "output": "1", + "index": 6576 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)\n\n{\n\n int i, count, ret = 0, j;\n\n int64_t read_size;\n\n AVStream *st;\n\n AVPacket pkt1, *pkt;\n\n int64_t old_offset = avio_tell(ic->pb);\n\n int orig_nb_streams = ic->nb_streams; // new streams might appear, no options for those\n\n int flush_codecs = ic->probesize > 0;\n\n\n\n if(ic->pb)\n\n av_log(ic, AV_LOG_DEBUG, \"File position before avformat_find_stream_info() is %\"PRId64\"\\n\", avio_tell(ic->pb));\n\n\n\n for(i=0;inb_streams;i++) {\n\n const AVCodec *codec;\n\n AVDictionary *thread_opt = NULL;\n\n st = ic->streams[i];\n\n\n\n if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||\n\n st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {\n\n/* if(!st->time_base.num)\n\n st->time_base= */\n\n if(!st->codec->time_base.num)\n\n st->codec->time_base= st->time_base;\n\n }\n\n //only for the split stuff\n\n if (!st->parser && !(ic->flags & AVFMT_FLAG_NOPARSE)) {\n\n st->parser = av_parser_init(st->codec->codec_id);\n\n if(st->parser){\n\n if(st->need_parsing == AVSTREAM_PARSE_HEADERS){\n\n st->parser->flags |= PARSER_FLAG_COMPLETE_FRAMES;\n\n } else if(st->need_parsing == AVSTREAM_PARSE_FULL_RAW) {\n\n st->parser->flags |= PARSER_FLAG_USE_CODEC_TS;\n\n }\n\n } else if (st->need_parsing) {\n\n av_log(ic, AV_LOG_VERBOSE, \"parser not found for codec \"\n\n \"%s, packets or times may be invalid.\\n\",\n\n avcodec_get_name(st->codec->codec_id));\n\n }\n\n }\n\n codec = st->codec->codec ? st->codec->codec :\n\n avcodec_find_decoder(st->codec->codec_id);\n\n\n\n /* force thread count to 1 since the h264 decoder will not extract SPS\n\n * and PPS to extradata during multi-threaded decoding */\n\n av_dict_set(options ? &options[i] : &thread_opt, \"threads\", \"1\", 0);\n\n\n\n /* Ensure that subtitle_header is properly set. */\n\n if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE\n\n && codec && !st->codec->codec)\n\n avcodec_open2(st->codec, codec, options ? &options[i]\n\n : &thread_opt);\n\n\n\n //try to just open decoders, in case this is enough to get parameters\n\n if (!has_codec_parameters(st, NULL) && st->request_probe <= 0) {\n\n if (codec && !st->codec->codec)\n\n avcodec_open2(st->codec, codec, options ? &options[i]\n\n : &thread_opt);\n\n }\n\n if (!options)\n\n av_dict_free(&thread_opt);\n\n }\n\n\n\n for (i=0; inb_streams; i++) {\n\n#if FF_API_R_FRAME_RATE\n\n ic->streams[i]->info->last_dts = AV_NOPTS_VALUE;\n\n#endif\n\n ic->streams[i]->info->fps_first_dts = AV_NOPTS_VALUE;\n\n ic->streams[i]->info->fps_last_dts = AV_NOPTS_VALUE;\n\n }\n\n\n\n count = 0;\n\n read_size = 0;\n\n for(;;) {\n\n if (ff_check_interrupt(&ic->interrupt_callback)){\n\n ret= AVERROR_EXIT;\n\n av_log(ic, AV_LOG_DEBUG, \"interrupted\\n\");\n\n break;\n\n }\n\n\n\n /* check if one codec still needs to be handled */\n\n for(i=0;inb_streams;i++) {\n\n int fps_analyze_framecount = 20;\n\n\n\n st = ic->streams[i];\n\n if (!has_codec_parameters(st, NULL))\n\n break;\n\n /* if the timebase is coarse (like the usual millisecond precision\n\n of mkv), we need to analyze more frames to reliably arrive at\n\n the correct fps */\n\n if (av_q2d(st->time_base) > 0.0005)\n\n fps_analyze_framecount *= 2;\n\n if (ic->fps_probe_size >= 0)\n\n fps_analyze_framecount = ic->fps_probe_size;\n\n if (st->disposition & AV_DISPOSITION_ATTACHED_PIC)\n\n fps_analyze_framecount = 0;\n\n /* variable fps and no guess at the real fps */\n\n if( tb_unreliable(st->codec) && !(st->r_frame_rate.num && st->avg_frame_rate.num)\n\n && st->info->duration_count < fps_analyze_framecount\n\n && st->codec->codec_type == AVMEDIA_TYPE_VIDEO)\n\n break;\n\n if(st->parser && st->parser->parser->split && !st->codec->extradata)\n\n break;\n\n if (st->first_dts == AV_NOPTS_VALUE &&\n\n (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||\n\n st->codec->codec_type == AVMEDIA_TYPE_AUDIO))\n\n break;\n\n }\n\n if (i == ic->nb_streams) {\n\n /* NOTE: if the format has no header, then we need to read\n\n some packets to get most of the streams, so we cannot\n\n stop here */\n\n if (!(ic->ctx_flags & AVFMTCTX_NOHEADER)) {\n\n /* if we found the info for all the codecs, we can stop */\n\n ret = count;\n\n av_log(ic, AV_LOG_DEBUG, \"All info found\\n\");\n\n flush_codecs = 0;\n\n break;\n\n }\n\n }\n\n /* we did not get all the codec info, but we read too much data */\n\n if (read_size >= ic->probesize) {\n\n ret = count;\n\n av_log(ic, AV_LOG_DEBUG, \"Probe buffer size limit of %d bytes reached\\n\", ic->probesize);\n\n for (i = 0; i < ic->nb_streams; i++)\n\n if (!ic->streams[i]->r_frame_rate.num &&\n\n ic->streams[i]->info->duration_count <= 1)\n\n av_log(ic, AV_LOG_WARNING,\n\n \"Stream #%d: not enough frames to estimate rate; \"\n\n \"consider increasing probesize\\n\", i);\n\n break;\n\n }\n\n\n\n /* NOTE: a new stream can be added there if no header in file\n\n (AVFMTCTX_NOHEADER) */\n\n ret = read_frame_internal(ic, &pkt1);\n\n if (ret == AVERROR(EAGAIN))\n\n continue;\n\n\n\n if (ret < 0) {\n\n /* EOF or error*/\n\n break;\n\n }\n\n\n\n if (ic->flags & AVFMT_FLAG_NOBUFFER) {\n\n pkt = &pkt1;\n\n } else {\n\n pkt = add_to_pktbuf(&ic->packet_buffer, &pkt1,\n\n &ic->packet_buffer_end);\n\n if ((ret = av_dup_packet(pkt)) < 0)\n\n goto find_stream_info_err;\n\n }\n\n\n\n read_size += pkt->size;\n\n\n\n st = ic->streams[pkt->stream_index];\n\n if (pkt->dts != AV_NOPTS_VALUE && st->codec_info_nb_frames > 1) {\n\n /* check for non-increasing dts */\n\n if (st->info->fps_last_dts != AV_NOPTS_VALUE &&\n\n st->info->fps_last_dts >= pkt->dts) {\n\n av_log(ic, AV_LOG_DEBUG, \"Non-increasing DTS in stream %d: \"\n\n \"packet %d with DTS %\"PRId64\", packet %d with DTS \"\n\n \"%\"PRId64\"\\n\", st->index, st->info->fps_last_dts_idx,\n\n st->info->fps_last_dts, st->codec_info_nb_frames, pkt->dts);\n\n st->info->fps_first_dts = st->info->fps_last_dts = AV_NOPTS_VALUE;\n\n }\n\n /* check for a discontinuity in dts - if the difference in dts\n\n * is more than 1000 times the average packet duration in the sequence,\n\n * we treat it as a discontinuity */\n\n if (st->info->fps_last_dts != AV_NOPTS_VALUE &&\n\n st->info->fps_last_dts_idx > st->info->fps_first_dts_idx &&\n\n (pkt->dts - st->info->fps_last_dts) / 1000 >\n\n (st->info->fps_last_dts - st->info->fps_first_dts) / (st->info->fps_last_dts_idx - st->info->fps_first_dts_idx)) {\n\n av_log(ic, AV_LOG_WARNING, \"DTS discontinuity in stream %d: \"\n\n \"packet %d with DTS %\"PRId64\", packet %d with DTS \"\n\n \"%\"PRId64\"\\n\", st->index, st->info->fps_last_dts_idx,\n\n st->info->fps_last_dts, st->codec_info_nb_frames, pkt->dts);\n\n st->info->fps_first_dts = st->info->fps_last_dts = AV_NOPTS_VALUE;\n\n }\n\n\n\n /* update stored dts values */\n\n if (st->info->fps_first_dts == AV_NOPTS_VALUE) {\n\n st->info->fps_first_dts = pkt->dts;\n\n st->info->fps_first_dts_idx = st->codec_info_nb_frames;\n\n }\n\n st->info->fps_last_dts = pkt->dts;\n\n st->info->fps_last_dts_idx = st->codec_info_nb_frames;\n\n }\n\n if (st->codec_info_nb_frames>1) {\n\n int64_t t=0;\n\n if (st->time_base.den > 0)\n\n t = av_rescale_q(st->info->codec_info_duration, st->time_base, AV_TIME_BASE_Q);\n\n if (st->avg_frame_rate.num > 0)\n\n t = FFMAX(t, av_rescale_q(st->codec_info_nb_frames, av_inv_q(st->avg_frame_rate), AV_TIME_BASE_Q));\n\n\n\n if ( t==0\n\n && st->codec_info_nb_frames>15\n\n && st->codec->codec_type == AVMEDIA_TYPE_VIDEO\n\n && ( !strcmp(ic->iformat->name, \"mpeg\") // this breaks some flvs thus use only for mpegps/ts for now (for ts we have a sample that needs it)\n\n || !strcmp(ic->iformat->name, \"mpegts\"))\n\n && st->info->fps_first_dts != AV_NOPTS_VALUE\n\n && st->info->fps_last_dts != AV_NOPTS_VALUE)\n\n t = FFMAX(t, av_rescale_q(st->info->fps_last_dts - st->info->fps_first_dts, st->time_base, AV_TIME_BASE_Q));\n\n\n\n if (t >= ic->max_analyze_duration) {\n\n av_log(ic, AV_LOG_VERBOSE, \"max_analyze_duration %d reached at %\"PRId64\" microseconds\\n\", ic->max_analyze_duration, t);\n\n break;\n\n }\n\n if (pkt->duration) {\n\n st->info->codec_info_duration += pkt->duration;\n\n st->info->codec_info_duration_fields += st->parser && st->codec->ticks_per_frame==2 ? st->parser->repeat_pict + 1 : 2;\n\n }\n\n }\n\n#if FF_API_R_FRAME_RATE\n\n {\n\n int64_t last = st->info->last_dts;\n\n\n\n if( pkt->dts != AV_NOPTS_VALUE && last != AV_NOPTS_VALUE && pkt->dts > last\n\n && pkt->dts - (uint64_t)last < INT64_MAX){\n\n double dts= (is_relative(pkt->dts) ? pkt->dts - RELATIVE_TS_BASE : pkt->dts) * av_q2d(st->time_base);\n\n int64_t duration= pkt->dts - last;\n\n\n\n if (!st->info->duration_error)\n\n st->info->duration_error = av_mallocz(sizeof(st->info->duration_error[0])*2);\n\n\n\n// if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO)\n\n// av_log(NULL, AV_LOG_ERROR, \"%f\\n\", dts);\n\n for (i=0; iinfo->duration_error[j][0][i] += error;\n\n st->info->duration_error[j][1][i] += error*error;\n\n }\n\n }\n\n st->info->duration_count++;\n\n // ignore the first 4 values, they might have some random jitter\n\n if (st->info->duration_count > 3 && is_relative(pkt->dts) == is_relative(last))\n\n st->info->duration_gcd = av_gcd(st->info->duration_gcd, duration);\n\n }\n\n if (pkt->dts != AV_NOPTS_VALUE)\n\n st->info->last_dts = pkt->dts;\n\n }\n\n#endif\n\n if(st->parser && st->parser->parser->split && !st->codec->extradata){\n\n int i= st->parser->parser->split(st->codec, pkt->data, pkt->size);\n\n if (i > 0 && i < FF_MAX_EXTRADATA_SIZE) {\n\n st->codec->extradata_size= i;\n\n st->codec->extradata= av_malloc(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);\n\n if (!st->codec->extradata)\n\n return AVERROR(ENOMEM);\n\n memcpy(st->codec->extradata, pkt->data, st->codec->extradata_size);\n\n memset(st->codec->extradata + i, 0, FF_INPUT_BUFFER_PADDING_SIZE);\n\n }\n\n }\n\n\n\n /* if still no information, we try to open the codec and to\n\n decompress the frame. We try to avoid that in most cases as\n\n it takes longer and uses more memory. For MPEG-4, we need to\n\n decompress for QuickTime.\n\n\n\n If CODEC_CAP_CHANNEL_CONF is set this will force decoding of at\n\n least one frame of codec data, this makes sure the codec initializes\n\n the channel configuration and does not only trust the values from the container.\n\n */\n\n try_decode_frame(st, pkt, (options && i < orig_nb_streams ) ? &options[i] : NULL);\n\n\n\n st->codec_info_nb_frames++;\n\n count++;\n\n }\n\n\n\n if (flush_codecs) {\n\n AVPacket empty_pkt = { 0 };\n\n int err = 0;\n\n av_init_packet(&empty_pkt);\n\n\n\n for(i=0;inb_streams;i++) {\n\n\n\n st = ic->streams[i];\n\n\n\n /* flush the decoders */\n\n if (st->info->found_decoder == 1) {\n\n do {\n\n err = try_decode_frame(st, &empty_pkt,\n\n (options && i < orig_nb_streams) ?\n\n &options[i] : NULL);\n\n } while (err > 0 && !has_codec_parameters(st, NULL));\n\n\n\n if (err < 0) {\n\n av_log(ic, AV_LOG_INFO,\n\n \"decoding for stream %d failed\\n\", st->index);\n\n }\n\n }\n\n }\n\n }\n\n\n\n // close codecs which were opened in try_decode_frame()\n\n for(i=0;inb_streams;i++) {\n\n st = ic->streams[i];\n\n avcodec_close(st->codec);\n\n }\n\n for(i=0;inb_streams;i++) {\n\n st = ic->streams[i];\n\n if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {\n\n if(st->codec->codec_id == AV_CODEC_ID_RAWVIDEO && !st->codec->codec_tag && !st->codec->bits_per_coded_sample){\n\n uint32_t tag= avcodec_pix_fmt_to_codec_tag(st->codec->pix_fmt);\n\n if (avpriv_find_pix_fmt(ff_raw_pix_fmt_tags, tag) == st->codec->pix_fmt)\n\n st->codec->codec_tag= tag;\n\n }\n\n\n\n /* estimate average framerate if not set by demuxer */\n\n if (st->info->codec_info_duration_fields && !st->avg_frame_rate.num && st->info->codec_info_duration) {\n\n int best_fps = 0;\n\n double best_error = 0.01;\n\n\n\n av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,\n\n st->info->codec_info_duration_fields*(int64_t)st->time_base.den,\n\n st->info->codec_info_duration*2*(int64_t)st->time_base.num, 60000);\n\n\n\n /* round guessed framerate to a \"standard\" framerate if it's\n\n * within 1% of the original estimate*/\n\n for (j = 1; j < MAX_STD_TIMEBASES; j++) {\n\n AVRational std_fps = { get_std_framerate(j), 12*1001 };\n\n double error = fabs(av_q2d(st->avg_frame_rate) / av_q2d(std_fps) - 1);\n\n\n\n if (error < best_error) {\n\n best_error = error;\n\n best_fps = std_fps.num;\n\n }\n\n }\n\n if (best_fps) {\n\n av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,\n\n best_fps, 12*1001, INT_MAX);\n\n }\n\n }\n\n // the check for tb_unreliable() is not completely correct, since this is not about handling\n\n // a unreliable/inexact time base, but a time base that is finer than necessary, as e.g.\n\n // ipmovie.c produces.\n\n if (tb_unreliable(st->codec) && st->info->duration_count > 15 && st->info->duration_gcd > FFMAX(1, st->time_base.den/(500LL*st->time_base.num)) && !st->r_frame_rate.num)\n\n av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den, st->time_base.den, st->time_base.num * st->info->duration_gcd, INT_MAX);\n\n if (st->info->duration_count>1 && !st->r_frame_rate.num\n\n && tb_unreliable(st->codec)) {\n\n int num = 0;\n\n double best_error= 0.01;\n\n\n\n for (j=0; jinfo->codec_info_duration && st->info->codec_info_duration*av_q2d(st->time_base) < (1001*12.0)/get_std_framerate(j))\n\n continue;\n\n if(!st->info->codec_info_duration && 1.0 < (1001*12.0)/get_std_framerate(j))\n\n continue;\n\n for(k=0; k<2; k++){\n\n int n= st->info->duration_count;\n\n double a= st->info->duration_error[k][0][j] / n;\n\n double error= st->info->duration_error[k][1][j]/n - a*a;\n\n\n\n if(error < best_error && best_error> 0.000000001){\n\n best_error= error;\n\n num = get_std_framerate(j);\n\n }\n\n if(error < 0.02)\n\n av_log(NULL, AV_LOG_DEBUG, \"rfps: %f %f\\n\", get_std_framerate(j) / 12.0/1001, error);\n\n }\n\n }\n\n // do not increase frame rate by more than 1 % in order to match a standard rate.\n\n if (num && (!st->r_frame_rate.num || (double)num/(12*1001) < 1.01 * av_q2d(st->r_frame_rate)))\n\n av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den, num, 12*1001, INT_MAX);\n\n }\n\n\n\n if (!st->r_frame_rate.num){\n\n if( st->codec->time_base.den * (int64_t)st->time_base.num\n\n <= st->codec->time_base.num * st->codec->ticks_per_frame * (int64_t)st->time_base.den){\n\n st->r_frame_rate.num = st->codec->time_base.den;\n\n st->r_frame_rate.den = st->codec->time_base.num * st->codec->ticks_per_frame;\n\n }else{\n\n st->r_frame_rate.num = st->time_base.den;\n\n st->r_frame_rate.den = st->time_base.num;\n\n }\n\n }\n\n }else if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {\n\n if(!st->codec->bits_per_coded_sample)\n\n st->codec->bits_per_coded_sample= av_get_bits_per_sample(st->codec->codec_id);\n\n // set stream disposition based on audio service type\n\n switch (st->codec->audio_service_type) {\n\n case AV_AUDIO_SERVICE_TYPE_EFFECTS:\n\n st->disposition = AV_DISPOSITION_CLEAN_EFFECTS; break;\n\n case AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED:\n\n st->disposition = AV_DISPOSITION_VISUAL_IMPAIRED; break;\n\n case AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED:\n\n st->disposition = AV_DISPOSITION_HEARING_IMPAIRED; break;\n\n case AV_AUDIO_SERVICE_TYPE_COMMENTARY:\n\n st->disposition = AV_DISPOSITION_COMMENT; break;\n\n case AV_AUDIO_SERVICE_TYPE_KARAOKE:\n\n st->disposition = AV_DISPOSITION_KARAOKE; break;\n\n }\n\n }\n\n }\n\n\n\n if(ic->probesize)\n\n estimate_timings(ic, old_offset);\n\n\n\n if (ret >= 0 && ic->nb_streams)\n\n ret = -1; /* we could not have all the codec parameters before EOF */\n\n for(i=0;inb_streams;i++) {\n\n const char *errmsg;\n\n st = ic->streams[i];\n\n if (!has_codec_parameters(st, &errmsg)) {\n\n char buf[256];\n\n avcodec_string(buf, sizeof(buf), st->codec, 0);\n\n av_log(ic, AV_LOG_WARNING,\n\n \"Could not find codec parameters for stream %d (%s): %s\\n\"\n\n \"Consider increasing the value for the 'analyzeduration' and 'probesize' options\\n\",\n\n i, buf, errmsg);\n\n } else {\n\n ret = 0;\n\n }\n\n }\n\n\n\n compute_chapters_end(ic);\n\n\n\n find_stream_info_err:\n\n for (i=0; i < ic->nb_streams; i++) {\n\n st = ic->streams[i];\n\n if (ic->streams[i]->codec && ic->streams[i]->codec->codec_type != AVMEDIA_TYPE_AUDIO)\n\n ic->streams[i]->codec->thread_count = 0;\n\n if (st->info)\n\n av_freep(&st->info->duration_error);\n\n av_freep(&ic->streams[i]->info);\n\n }\n\n if(ic->pb)\n\n av_log(ic, AV_LOG_DEBUG, \"File position after avformat_find_stream_info() is %\"PRId64\"\\n\", avio_tell(ic->pb));\n\n return ret;\n\n}\n", + "output": "1", + "index": 9826 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int img_rebase(int argc, char **argv)\n\n{\n\n BlockDriverState *bs, *bs_old_backing = NULL, *bs_new_backing = NULL;\n\n BlockDriver *old_backing_drv, *new_backing_drv;\n\n char *filename;\n\n const char *fmt, *cache, *out_basefmt, *out_baseimg;\n\n int c, flags, ret;\n\n int unsafe = 0;\n\n int progress = 0;\n\n\n\n /* Parse commandline parameters */\n\n fmt = NULL;\n\n cache = BDRV_DEFAULT_CACHE;\n\n out_baseimg = NULL;\n\n out_basefmt = NULL;\n\n for(;;) {\n\n c = getopt(argc, argv, \"uhf:F:b:pt:\");\n\n if (c == -1) {\n\n break;\n\n }\n\n switch(c) {\n\n case '?':\n\n case 'h':\n\n help();\n\n return 0;\n\n case 'f':\n\n fmt = optarg;\n\n break;\n\n case 'F':\n\n out_basefmt = optarg;\n\n break;\n\n case 'b':\n\n out_baseimg = optarg;\n\n break;\n\n case 'u':\n\n unsafe = 1;\n\n break;\n\n case 'p':\n\n progress = 1;\n\n break;\n\n case 't':\n\n cache = optarg;\n\n break;\n\n }\n\n }\n\n\n\n if ((optind >= argc) || (!unsafe && !out_baseimg)) {\n\n help();\n\n }\n\n filename = argv[optind++];\n\n\n\n qemu_progress_init(progress, 2.0);\n\n qemu_progress_print(0, 100);\n\n\n\n flags = BDRV_O_RDWR | (unsafe ? BDRV_O_NO_BACKING : 0);\n\n ret = bdrv_parse_cache_flags(cache, &flags);\n\n if (ret < 0) {\n\n error_report(\"Invalid cache option: %s\", cache);\n\n return -1;\n\n }\n\n\n\n /*\n\n * Open the images.\n\n *\n\n * Ignore the old backing file for unsafe rebase in case we want to correct\n\n * the reference to a renamed or moved backing file.\n\n */\n\n bs = bdrv_new_open(filename, fmt, flags);\n\n if (!bs) {\n\n return 1;\n\n }\n\n\n\n /* Find the right drivers for the backing files */\n\n old_backing_drv = NULL;\n\n new_backing_drv = NULL;\n\n\n\n if (!unsafe && bs->backing_format[0] != '\\0') {\n\n old_backing_drv = bdrv_find_format(bs->backing_format);\n\n if (old_backing_drv == NULL) {\n\n error_report(\"Invalid format name: '%s'\", bs->backing_format);\n\n ret = -1;\n\n goto out;\n\n }\n\n }\n\n\n\n if (out_basefmt != NULL) {\n\n new_backing_drv = bdrv_find_format(out_basefmt);\n\n if (new_backing_drv == NULL) {\n\n error_report(\"Invalid format name: '%s'\", out_basefmt);\n\n ret = -1;\n\n goto out;\n\n }\n\n }\n\n\n\n /* For safe rebasing we need to compare old and new backing file */\n\n if (unsafe) {\n\n /* Make the compiler happy */\n\n bs_old_backing = NULL;\n\n bs_new_backing = NULL;\n\n } else {\n\n char backing_name[1024];\n\n\n\n bs_old_backing = bdrv_new(\"old_backing\");\n\n bdrv_get_backing_filename(bs, backing_name, sizeof(backing_name));\n\n ret = bdrv_open(bs_old_backing, backing_name, BDRV_O_FLAGS,\n\n old_backing_drv);\n\n if (ret) {\n\n error_report(\"Could not open old backing file '%s'\", backing_name);\n\n goto out;\n\n }\n\n\n\n bs_new_backing = bdrv_new(\"new_backing\");\n\n ret = bdrv_open(bs_new_backing, out_baseimg, BDRV_O_FLAGS,\n\n new_backing_drv);\n\n if (ret) {\n\n error_report(\"Could not open new backing file '%s'\", out_baseimg);\n\n goto out;\n\n }\n\n }\n\n\n\n /*\n\n * Check each unallocated cluster in the COW file. If it is unallocated,\n\n * accesses go to the backing file. We must therefore compare this cluster\n\n * in the old and new backing file, and if they differ we need to copy it\n\n * from the old backing file into the COW file.\n\n *\n\n * If qemu-img crashes during this step, no harm is done. The content of\n\n * the image is the same as the original one at any time.\n\n */\n\n if (!unsafe) {\n\n uint64_t num_sectors;\n\n uint64_t old_backing_num_sectors;\n\n uint64_t new_backing_num_sectors;\n\n uint64_t sector;\n\n int n;\n\n uint8_t * buf_old;\n\n uint8_t * buf_new;\n\n float local_progress;\n\n\n\n buf_old = qemu_blockalign(bs, IO_BUF_SIZE);\n\n buf_new = qemu_blockalign(bs, IO_BUF_SIZE);\n\n\n\n bdrv_get_geometry(bs, &num_sectors);\n\n bdrv_get_geometry(bs_old_backing, &old_backing_num_sectors);\n\n bdrv_get_geometry(bs_new_backing, &new_backing_num_sectors);\n\n\n\n local_progress = (float)100 /\n\n (num_sectors / MIN(num_sectors, IO_BUF_SIZE / 512));\n\n for (sector = 0; sector < num_sectors; sector += n) {\n\n\n\n /* How many sectors can we handle with the next read? */\n\n if (sector + (IO_BUF_SIZE / 512) <= num_sectors) {\n\n n = (IO_BUF_SIZE / 512);\n\n } else {\n\n n = num_sectors - sector;\n\n }\n\n\n\n /* If the cluster is allocated, we don't need to take action */\n\n ret = bdrv_is_allocated(bs, sector, n, &n);\n\n if (ret) {\n\n continue;\n\n }\n\n\n\n /*\n\n * Read old and new backing file and take into consideration that\n\n * backing files may be smaller than the COW image.\n\n */\n\n if (sector >= old_backing_num_sectors) {\n\n memset(buf_old, 0, n * BDRV_SECTOR_SIZE);\n\n } else {\n\n if (sector + n > old_backing_num_sectors) {\n\n n = old_backing_num_sectors - sector;\n\n }\n\n\n\n ret = bdrv_read(bs_old_backing, sector, buf_old, n);\n\n if (ret < 0) {\n\n error_report(\"error while reading from old backing file\");\n\n goto out;\n\n }\n\n }\n\n\n\n if (sector >= new_backing_num_sectors) {\n\n memset(buf_new, 0, n * BDRV_SECTOR_SIZE);\n\n } else {\n\n if (sector + n > new_backing_num_sectors) {\n\n n = new_backing_num_sectors - sector;\n\n }\n\n\n\n ret = bdrv_read(bs_new_backing, sector, buf_new, n);\n\n if (ret < 0) {\n\n error_report(\"error while reading from new backing file\");\n\n goto out;\n\n }\n\n }\n\n\n\n /* If they differ, we need to write to the COW file */\n\n uint64_t written = 0;\n\n\n\n while (written < n) {\n\n int pnum;\n\n\n\n if (compare_sectors(buf_old + written * 512,\n\n buf_new + written * 512, n - written, &pnum))\n\n {\n\n ret = bdrv_write(bs, sector + written,\n\n buf_old + written * 512, pnum);\n\n if (ret < 0) {\n\n error_report(\"Error while writing to COW image: %s\",\n\n strerror(-ret));\n\n goto out;\n\n }\n\n }\n\n\n\n written += pnum;\n\n }\n\n qemu_progress_print(local_progress, 100);\n\n }\n\n\n\n qemu_vfree(buf_old);\n\n qemu_vfree(buf_new);\n\n }\n\n\n\n /*\n\n * Change the backing file. All clusters that are different from the old\n\n * backing file are overwritten in the COW file now, so the visible content\n\n * doesn't change when we switch the backing file.\n\n */\n\n ret = bdrv_change_backing_file(bs, out_baseimg, out_basefmt);\n\n if (ret == -ENOSPC) {\n\n error_report(\"Could not change the backing file to '%s': No \"\n\n \"space left in the file header\", out_baseimg);\n\n } else if (ret < 0) {\n\n error_report(\"Could not change the backing file to '%s': %s\",\n\n out_baseimg, strerror(-ret));\n\n }\n\n\n\n qemu_progress_print(100, 0);\n\n /*\n\n * TODO At this point it is possible to check if any clusters that are\n\n * allocated in the COW file are the same in the backing file. If so, they\n\n * could be dropped from the COW file. Don't do this before switching the\n\n * backing file, in case of a crash this would lead to corruption.\n\n */\n\nout:\n\n qemu_progress_end();\n\n /* Cleanup */\n\n if (!unsafe) {\n\n if (bs_old_backing != NULL) {\n\n bdrv_delete(bs_old_backing);\n\n }\n\n if (bs_new_backing != NULL) {\n\n bdrv_delete(bs_new_backing);\n\n }\n\n }\n\n\n\n bdrv_delete(bs);\n\n if (ret) {\n\n return 1;\n\n }\n\n return 0;\n\n}\n", + "output": "0", + "index": 15496 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int raw_decode(AVCodecContext *avctx, void *data, int *got_frame,\n\n AVPacket *avpkt)\n\n{\n\n const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);\n\n RawVideoContext *context = avctx->priv_data;\n\n const uint8_t *buf = avpkt->data;\n\n int buf_size = avpkt->size;\n\n int linesize_align = 4;\n\n int res, len;\n\n int need_copy = !avpkt->buf || context->is_2_4_bpp || context->is_yuv2;\n\n\n\n AVFrame *frame = data;\n\n AVPicture *picture = data;\n\n\n\n frame->pict_type = AV_PICTURE_TYPE_I;\n\n frame->key_frame = 1;\n\n frame->reordered_opaque = avctx->reordered_opaque;\n\n frame->pkt_pts = avctx->pkt->pts;\n\n av_frame_set_pkt_pos (frame, avctx->pkt->pos);\n\n av_frame_set_pkt_duration(frame, avctx->pkt->duration);\n\n\n\n if (context->tff >= 0) {\n\n frame->interlaced_frame = 1;\n\n frame->top_field_first = context->tff;\n\n }\n\n\n\n if ((res = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0)\n\n return res;\n\n\n\n if (need_copy)\n\n frame->buf[0] = av_buffer_alloc(context->frame_size);\n\n else\n\n frame->buf[0] = av_buffer_ref(avpkt->buf);\n\n if (!frame->buf[0])\n\n return AVERROR(ENOMEM);\n\n\n\n //2bpp and 4bpp raw in avi and mov (yes this is ugly ...)\n\n if (context->is_2_4_bpp) {\n\n int i;\n\n uint8_t *dst = frame->buf[0]->data;\n\n buf_size = context->frame_size - AVPALETTE_SIZE;\n\n if (avctx->bits_per_coded_sample == 4) {\n\n for (i = 0; 2 * i + 1 < buf_size && isize; i++) {\n\n dst[2 * i + 0] = buf[i] >> 4;\n\n dst[2 * i + 1] = buf[i] & 15;\n\n }\n\n linesize_align = 8;\n\n } else {\n\n av_assert0(avctx->bits_per_coded_sample == 2);\n\n for (i = 0; 4 * i + 3 < buf_size && isize; i++) {\n\n dst[4 * i + 0] = buf[i] >> 6;\n\n dst[4 * i + 1] = buf[i] >> 4 & 3;\n\n dst[4 * i + 2] = buf[i] >> 2 & 3;\n\n dst[4 * i + 3] = buf[i] & 3;\n\n }\n\n linesize_align = 16;\n\n }\n\n buf = dst;\n\n } else if (need_copy) {\n\n memcpy(frame->buf[0]->data, buf, FFMIN(buf_size, context->frame_size));\n\n buf = frame->buf[0]->data;\n\n }\n\n\n\n if (avctx->codec_tag == MKTAG('A', 'V', '1', 'x') ||\n\n avctx->codec_tag == MKTAG('A', 'V', 'u', 'p'))\n\n buf += buf_size - context->frame_size;\n\n\n\n len = context->frame_size - (avctx->pix_fmt==AV_PIX_FMT_PAL8 ? AVPALETTE_SIZE : 0);\n\n if (buf_size < len) {\n\n av_log(avctx, AV_LOG_ERROR, \"Invalid buffer size, packet size %d < expected frame_size %d\\n\", buf_size, len);\n\n av_buffer_unref(&frame->buf[0]);\n\n return AVERROR(EINVAL);\n\n }\n\n\n\n if ((res = avpicture_fill(picture, buf, avctx->pix_fmt,\n\n avctx->width, avctx->height)) < 0) {\n\n av_buffer_unref(&frame->buf[0]);\n\n return res;\n\n }\n\n\n\n if (avctx->pix_fmt == AV_PIX_FMT_PAL8) {\n\n const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE,\n\n NULL);\n\n\n\n if (pal) {\n\n av_buffer_unref(&context->palette);\n\n context->palette = av_buffer_alloc(AVPALETTE_SIZE);\n\n if (!context->palette) {\n\n av_buffer_unref(&frame->buf[0]);\n\n return AVERROR(ENOMEM);\n\n }\n\n memcpy(context->palette->data, pal, AVPALETTE_SIZE);\n\n frame->palette_has_changed = 1;\n\n }\n\n }\n\n\n\n if ((avctx->pix_fmt==AV_PIX_FMT_BGR24 ||\n\n avctx->pix_fmt==AV_PIX_FMT_GRAY8 ||\n\n avctx->pix_fmt==AV_PIX_FMT_RGB555LE ||\n\n avctx->pix_fmt==AV_PIX_FMT_RGB555BE ||\n\n avctx->pix_fmt==AV_PIX_FMT_RGB565LE ||\n\n avctx->pix_fmt==AV_PIX_FMT_MONOWHITE ||\n\n avctx->pix_fmt==AV_PIX_FMT_PAL8) &&\n\n FFALIGN(frame->linesize[0], linesize_align) * avctx->height <= buf_size)\n\n frame->linesize[0] = FFALIGN(frame->linesize[0], linesize_align);\n\n\n\n if (avctx->pix_fmt == AV_PIX_FMT_NV12 && avctx->codec_tag == MKTAG('N', 'V', '1', '2') &&\n\n FFALIGN(frame->linesize[0], linesize_align) * avctx->height +\n\n FFALIGN(frame->linesize[1], linesize_align) * ((avctx->height + 1) / 2) <= buf_size) {\n\n int la0 = FFALIGN(frame->linesize[0], linesize_align);\n\n frame->data[1] += (la0 - frame->linesize[0]) * avctx->height;\n\n frame->linesize[0] = la0;\n\n frame->linesize[1] = FFALIGN(frame->linesize[1], linesize_align);\n\n }\n\n\n\n if ((avctx->pix_fmt == AV_PIX_FMT_PAL8 && buf_size < context->frame_size) ||\n\n (desc->flags & AV_PIX_FMT_FLAG_PSEUDOPAL)) {\n\n frame->buf[1] = av_buffer_ref(context->palette);\n\n if (!frame->buf[1]) {\n\n av_buffer_unref(&frame->buf[0]);\n\n return AVERROR(ENOMEM);\n\n }\n\n frame->data[1] = frame->buf[1]->data;\n\n }\n\n\n\n if (avctx->pix_fmt == AV_PIX_FMT_BGR24 &&\n\n ((frame->linesize[0] + 3) & ~3) * avctx->height <= buf_size)\n\n frame->linesize[0] = (frame->linesize[0] + 3) & ~3;\n\n\n\n if (context->flip)\n\n flip(avctx, picture);\n\n\n\n if (avctx->codec_tag == MKTAG('Y', 'V', '1', '2') ||\n\n avctx->codec_tag == MKTAG('Y', 'V', '1', '6') ||\n\n avctx->codec_tag == MKTAG('Y', 'V', '2', '4') ||\n\n avctx->codec_tag == MKTAG('Y', 'V', 'U', '9'))\n\n FFSWAP(uint8_t *, picture->data[1], picture->data[2]);\n\n\n\n if (avctx->codec_tag == AV_RL32(\"I420\") && (avctx->width+1)*(avctx->height+1) * 3/2 == buf_size) {\n\n picture->data[1] = picture->data[1] + (avctx->width+1)*(avctx->height+1) -avctx->width*avctx->height;\n\n picture->data[2] = picture->data[2] + ((avctx->width+1)*(avctx->height+1) -avctx->width*avctx->height)*5/4;\n\n }\n\n\n\n if (avctx->codec_tag == AV_RL32(\"yuv2\") &&\n\n avctx->pix_fmt == AV_PIX_FMT_YUYV422) {\n\n int x, y;\n\n uint8_t *line = picture->data[0];\n\n for (y = 0; y < avctx->height; y++) {\n\n for (x = 0; x < avctx->width; x++)\n\n line[2 * x + 1] ^= 0x80;\n\n line += picture->linesize[0];\n\n }\n\n }\n\n if (avctx->codec_tag == AV_RL32(\"YVYU\") &&\n\n avctx->pix_fmt == AV_PIX_FMT_YUYV422) {\n\n int x, y;\n\n uint8_t *line = picture->data[0];\n\n for(y = 0; y < avctx->height; y++) {\n\n for(x = 0; x < avctx->width - 1; x += 2)\n\n FFSWAP(uint8_t, line[2*x + 1], line[2*x + 3]);\n\n line += picture->linesize[0];\n\n }\n\n }\n\n\n\n if (avctx->field_order > AV_FIELD_PROGRESSIVE) { /* we have interlaced material flagged in container */\n\n frame->interlaced_frame = 1;\n\n if (avctx->field_order == AV_FIELD_TT || avctx->field_order == AV_FIELD_TB)\n\n frame->top_field_first = 1;\n\n }\n\n\n\n *got_frame = 1;\n\n return buf_size;\n\n}\n", + "output": "1", + "index": 25405 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static inline void RENAME(yuvPlanartouyvy)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst,\n\n long width, long height,\n\n long lumStride, long chromStride, long dstStride, long vertLumPerChroma)\n\n{\n\n long y;\n\n const x86_reg chromWidth= width>>1;\n\n for (y=0; yyuy2\n\n\n\n#if HAVE_FAST_64BIT\n\n int i;\n\n uint64_t *ldst = (uint64_t *) dst;\n\n const uint8_t *yc = ysrc, *uc = usrc, *vc = vsrc;\n\n for (i = 0; i < chromWidth; i += 2) {\n\n uint64_t k, l;\n\n k = uc[0] + (yc[0] << 8) +\n\n (vc[0] << 16) + (yc[1] << 24);\n\n l = uc[1] + (yc[2] << 8) +\n\n (vc[1] << 16) + (yc[3] << 24);\n\n *ldst++ = k + (l << 32);\n\n yc += 4;\n\n uc += 2;\n\n vc += 2;\n\n }\n\n\n\n#else\n\n int i, *idst = (int32_t *) dst;\n\n const uint8_t *yc = ysrc, *uc = usrc, *vc = vsrc;\n\n for (i = 0; i < chromWidth; i++) {\n\n#if HAVE_BIGENDIAN\n\n *idst++ = (uc[0] << 24)+ (yc[0] << 16) +\n\n (vc[0] << 8) + (yc[1] << 0);\n\n#else\n\n *idst++ = uc[0] + (yc[0] << 8) +\n\n (vc[0] << 16) + (yc[1] << 24);\n\n#endif\n\n yc += 2;\n\n uc++;\n\n vc++;\n\n }\n\n#endif\n\n#endif\n\n if ((y&(vertLumPerChroma-1)) == vertLumPerChroma-1) {\n\n usrc += chromStride;\n\n vsrc += chromStride;\n\n }\n\n ysrc += lumStride;\n\n dst += dstStride;\n\n }\n\n#if COMPILE_TEMPLATE_MMX\n\n __asm__(EMMS\" \\n\\t\"\n\n SFENCE\" \\n\\t\"\n\n :::\"memory\");\n\n#endif\n\n}\n", + "output": "0", + "index": 98 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int write_manifest(AVFormatContext *s, int final)\n\n{\n\n DASHContext *c = s->priv_data;\n\n AVIOContext *out;\n\n char temp_filename[1024];\n\n int ret, i;\n\n const char *proto = avio_find_protocol_name(s->filename);\n\n int use_rename = proto && !strcmp(proto, \"file\");\n\n static unsigned int warned_non_file = 0;\n\n AVDictionaryEntry *title = av_dict_get(s->metadata, \"title\", NULL, 0);\n\n\n\n if (!use_rename && !warned_non_file++)\n\n av_log(s, AV_LOG_ERROR, \"Cannot use rename on non file protocol, this may lead to races and temporary partial files\\n\");\n\n\n\n snprintf(temp_filename, sizeof(temp_filename), use_rename ? \"%s.tmp\" : \"%s\", s->filename);\n\n ret = s->io_open(s, &out, temp_filename, AVIO_FLAG_WRITE, NULL);\n\n if (ret < 0) {\n\n av_log(s, AV_LOG_ERROR, \"Unable to open %s for writing\\n\", temp_filename);\n\n return ret;\n\n }\n\n avio_printf(out, \"\\n\");\n\n avio_printf(out, \"total_duration);\n\n avio_printf(out, \"\\\"\\n\");\n\n } else {\n\n int64_t update_period = c->last_duration / AV_TIME_BASE;\n\n char now_str[100];\n\n if (c->use_template && !c->use_timeline)\n\n update_period = 500;\n\n avio_printf(out, \"\\tminimumUpdatePeriod=\\\"PT%\"PRId64\"S\\\"\\n\", update_period);\n\n avio_printf(out, \"\\tsuggestedPresentationDelay=\\\"PT%\"PRId64\"S\\\"\\n\", c->last_duration / AV_TIME_BASE);\n\n if (!c->availability_start_time[0] && s->nb_streams > 0 && c->streams[0].nb_segments > 0) {\n\n format_date_now(c->availability_start_time, sizeof(c->availability_start_time));\n\n }\n\n if (c->availability_start_time[0])\n\n avio_printf(out, \"\\tavailabilityStartTime=\\\"%s\\\"\\n\", c->availability_start_time);\n\n format_date_now(now_str, sizeof(now_str));\n\n if (now_str[0])\n\n avio_printf(out, \"\\tpublishTime=\\\"%s\\\"\\n\", now_str);\n\n if (c->window_size && c->use_template) {\n\n avio_printf(out, \"\\ttimeShiftBufferDepth=\\\"\");\n\n write_time(out, c->last_duration * c->window_size);\n\n avio_printf(out, \"\\\"\\n\");\n\n }\n\n }\n\n avio_printf(out, \"\\tminBufferTime=\\\"\");\n\n write_time(out, c->last_duration * 2);\n\n avio_printf(out, \"\\\">\\n\");\n\n avio_printf(out, \"\\t\\n\");\n\n if (title) {\n\n char *escaped = xmlescape(title->value);\n\n avio_printf(out, \"\\t\\t%s\\n\", escaped);\n\n av_free(escaped);\n\n }\n\n avio_printf(out, \"\\t\\n\");\n\n\n\n if (c->window_size && s->nb_streams > 0 && c->streams[0].nb_segments > 0 && !c->use_template) {\n\n OutputStream *os = &c->streams[0];\n\n int start_index = FFMAX(os->nb_segments - c->window_size, 0);\n\n int64_t start_time = av_rescale_q(os->segments[start_index]->time, s->streams[0]->time_base, AV_TIME_BASE_Q);\n\n avio_printf(out, \"\\t\\n\");\n\n } else {\n\n avio_printf(out, \"\\t\\n\");\n\n }\n\n\n\n for (i = 0; i < c->nb_as; i++) {\n\n if ((ret = write_adaptation_set(s, out, i)) < 0)\n\n return ret;\n\n }\n\n avio_printf(out, \"\\t\\n\");\n\n\n\n if (c->utc_timing_url)\n\n avio_printf(out, \"\\t\\n\", c->utc_timing_url);\n\n\n\n avio_printf(out, \"\\n\");\n\n avio_flush(out);\n\n ff_format_io_close(s, &out);\n\n\n\n if (use_rename)\n\n return avpriv_io_move(temp_filename, s->filename);\n\n\n\n return 0;\n\n}\n", + "output": "0", + "index": 15487 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int init_opencl_env(GPUEnv *gpu_env, AVOpenCLExternalEnv *ext_opencl_env)\n\n{\n\n size_t device_length;\n\n cl_int status;\n\n cl_uint num_platforms, num_devices;\n\n cl_platform_id *platform_ids = NULL;\n\n cl_context_properties cps[3];\n\n char platform_name[100];\n\n int i, ret = 0;\n\n cl_device_type device_type[] = {CL_DEVICE_TYPE_GPU, CL_DEVICE_TYPE_CPU, CL_DEVICE_TYPE_DEFAULT};\n\n if (ext_opencl_env) {\n\n if (gpu_env->is_user_created)\n\n return 0;\n\n gpu_env->platform_id = ext_opencl_env->platform_id;\n\n gpu_env->is_user_created = 1;\n\n gpu_env->command_queue = ext_opencl_env->command_queue;\n\n gpu_env->context = ext_opencl_env->context;\n\n gpu_env->device_ids = ext_opencl_env->device_ids;\n\n gpu_env->device_id = ext_opencl_env->device_id;\n\n gpu_env->device_type = ext_opencl_env->device_type;\n\n } else {\n\n if (!gpu_env->is_user_created) {\n\n status = clGetPlatformIDs(0, NULL, &num_platforms);\n\n if (status != CL_SUCCESS) {\n\n av_log(&openclutils, AV_LOG_ERROR, \"Could not get OpenCL platform ids: %s\\n\", opencl_errstr(status));\n\n return AVERROR_EXTERNAL;\n\n }\n\n if (gpu_env->usr_spec_dev_info.platform_idx >= 0) {\n\n if (num_platforms < gpu_env->usr_spec_dev_info.platform_idx + 1) {\n\n av_log(&openclutils, AV_LOG_ERROR, \"User set platform index not exist\\n\");\n\n return AVERROR(EINVAL);\n\n }\n\n }\n\n if (num_platforms > 0) {\n\n platform_ids = av_mallocz(num_platforms * sizeof(cl_platform_id));\n\n if (!platform_ids) {\n\n ret = AVERROR(ENOMEM);\n\n goto end;\n\n }\n\n status = clGetPlatformIDs(num_platforms, platform_ids, NULL);\n\n if (status != CL_SUCCESS) {\n\n av_log(&openclutils, AV_LOG_ERROR, \"Could not get OpenCL platform ids: %s\\n\", opencl_errstr(status));\n\n ret = AVERROR_EXTERNAL;\n\n goto end;\n\n }\n\n i = 0;\n\n if (gpu_env->usr_spec_dev_info.platform_idx >= 0) {\n\n i = gpu_env->usr_spec_dev_info.platform_idx;\n\n }\n\n while (i < num_platforms) {\n\n status = clGetPlatformInfo(platform_ids[i], CL_PLATFORM_VENDOR,\n\n sizeof(platform_name), platform_name,\n\n NULL);\n\n\n\n if (status != CL_SUCCESS) {\n\n av_log(&openclutils, AV_LOG_ERROR, \"Could not get OpenCL platform info: %s\\n\", opencl_errstr(status));\n\n ret = AVERROR_EXTERNAL;\n\n goto end;\n\n }\n\n gpu_env->platform_id = platform_ids[i];\n\n status = clGetDeviceIDs(gpu_env->platform_id, CL_DEVICE_TYPE_GPU,\n\n 0, NULL, &num_devices);\n\n if (status != CL_SUCCESS) {\n\n av_log(&openclutils, AV_LOG_ERROR, \"Could not get OpenCL device number:%s\\n\", opencl_errstr(status));\n\n ret = AVERROR_EXTERNAL;\n\n goto end;\n\n }\n\n if (num_devices == 0) {\n\n //find CPU device\n\n status = clGetDeviceIDs(gpu_env->platform_id, CL_DEVICE_TYPE_CPU,\n\n 0, NULL, &num_devices);\n\n }\n\n if (status != CL_SUCCESS) {\n\n av_log(&openclutils, AV_LOG_ERROR, \"Could not get OpenCL device ids: %s\\n\", opencl_errstr(status));\n\n ret = AVERROR(EINVAL);\n\n goto end;\n\n }\n\n if (num_devices)\n\n break;\n\n if (gpu_env->usr_spec_dev_info.platform_idx >= 0) {\n\n av_log(&openclutils, AV_LOG_ERROR, \"Device number of user set platform is 0\\n\");\n\n ret = AVERROR_EXTERNAL;\n\n goto end;\n\n }\n\n i++;\n\n\n\n }\n\n }\n\n if (!gpu_env->platform_id) {\n\n av_log(&openclutils, AV_LOG_ERROR, \"Could not get OpenCL platforms\\n\");\n\n ret = AVERROR_EXTERNAL;\n\n goto end;\n\n }\n\n if (gpu_env->usr_spec_dev_info.dev_idx >= 0) {\n\n if (num_devices < gpu_env->usr_spec_dev_info.dev_idx + 1) {\n\n av_log(&openclutils, AV_LOG_ERROR, \"Could not get OpenCL device idx in the user set platform\\n\");\n\n ret = AVERROR(EINVAL);\n\n goto end;\n\n }\n\n }\n\n\n\n /*\n\n * Use available platform.\n\n */\n\n\n\n av_log(&openclutils, AV_LOG_VERBOSE, \"Platform Name: %s\\n\", platform_name);\n\n cps[0] = CL_CONTEXT_PLATFORM;\n\n cps[1] = (cl_context_properties)gpu_env->platform_id;\n\n cps[2] = 0;\n\n /* Check for GPU. */\n\n\n\n for (i = 0; i < sizeof(device_type); i++) {\n\n gpu_env->device_type = device_type[i];\n\n gpu_env->context = clCreateContextFromType(cps, gpu_env->device_type,\n\n NULL, NULL, &status);\n\n if (status != CL_SUCCESS) {\n\n av_log(&openclutils, AV_LOG_ERROR, \"Could not get OpenCL context from device type: %s\\n\", opencl_errstr(status));\n\n ret = AVERROR_EXTERNAL;\n\n goto end;\n\n }\n\n if (gpu_env->context)\n\n break;\n\n }\n\n if (!gpu_env->context) {\n\n av_log(&openclutils, AV_LOG_ERROR, \"Could not get OpenCL context from device type\\n\");\n\n ret = AVERROR_EXTERNAL;\n\n goto end;\n\n }\n\n /* Detect OpenCL devices. */\n\n /* First, get the size of device list data */\n\n status = clGetContextInfo(gpu_env->context, CL_CONTEXT_DEVICES,\n\n 0, NULL, &device_length);\n\n if (status != CL_SUCCESS) {\n\n av_log(&openclutils, AV_LOG_ERROR, \"Could not get OpenCL device length: %s\\n\", opencl_errstr(status));\n\n ret = AVERROR_EXTERNAL;\n\n goto end;\n\n }\n\n if (device_length == 0) {\n\n av_log(&openclutils, AV_LOG_ERROR, \"Could not get OpenCL device length\\n\");\n\n ret = AVERROR_EXTERNAL;\n\n goto end;\n\n }\n\n /* Now allocate memory for device list based on the size we got earlier */\n\n gpu_env->device_ids = av_mallocz(device_length);\n\n if (!gpu_env->device_ids) {\n\n ret = AVERROR(ENOMEM);\n\n goto end;\n\n }\n\n /* Now, get the device list data */\n\n status = clGetContextInfo(gpu_env->context, CL_CONTEXT_DEVICES, device_length,\n\n gpu_env->device_ids, NULL);\n\n if (status != CL_SUCCESS) {\n\n av_log(&openclutils, AV_LOG_ERROR, \"Could not get OpenCL context info: %s\\n\", opencl_errstr(status));\n\n ret = AVERROR_EXTERNAL;\n\n goto end;\n\n }\n\n /* Create OpenCL command queue. */\n\n i = 0;\n\n if (gpu_env->usr_spec_dev_info.dev_idx >= 0) {\n\n i = gpu_env->usr_spec_dev_info.dev_idx;\n\n }\n\n gpu_env->command_queue = clCreateCommandQueue(gpu_env->context, gpu_env->device_ids[i],\n\n 0, &status);\n\n if (status != CL_SUCCESS) {\n\n av_log(&openclutils, AV_LOG_ERROR, \"Could not create OpenCL command queue: %s\\n\", opencl_errstr(status));\n\n ret = AVERROR_EXTERNAL;\n\n goto end;\n\n }\n\n }\n\n }\n\nend:\n\n av_free(platform_ids);\n\n return ret;\n\n}\n", + "output": "0", + "index": 10866 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int lag_decode_frame(AVCodecContext *avctx,\n\n void *data, int *data_size, AVPacket *avpkt)\n\n{\n\n const uint8_t *buf = avpkt->data;\n\n int buf_size = avpkt->size;\n\n LagarithContext *l = avctx->priv_data;\n\n AVFrame *const p = &l->picture;\n\n uint8_t frametype = 0;\n\n uint32_t offset_gu = 0, offset_bv = 0, offset_ry = 9;\n\n uint32_t offs[4];\n\n uint8_t *srcs[4], *dst;\n\n int i, j, planes = 3;\n\n\n\n AVFrame *picture = data;\n\n\n\n if (p->data[0])\n\n avctx->release_buffer(avctx, p);\n\n\n\n p->reference = 0;\n\n p->key_frame = 1;\n\n\n\n frametype = buf[0];\n\n\n\n offset_gu = AV_RL32(buf + 1);\n\n offset_bv = AV_RL32(buf + 5);\n\n\n\n switch (frametype) {\n\n case FRAME_SOLID_RGBA:\n\n avctx->pix_fmt = PIX_FMT_RGB32;\n\n\n\n if (avctx->get_buffer(avctx, p) < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"get_buffer() failed\\n\");\n\n return -1;\n\n }\n\n\n\n dst = p->data[0];\n\n for (j = 0; j < avctx->height; j++) {\n\n for (i = 0; i < avctx->width; i++)\n\n AV_WN32(dst + i * 4, offset_gu);\n\n dst += p->linesize[0];\n\n }\n\n break;\n\n case FRAME_ARITH_RGBA:\n\n avctx->pix_fmt = PIX_FMT_RGB32;\n\n planes = 4;\n\n offset_ry += 4;\n\n offs[3] = AV_RL32(buf + 9);\n\n case FRAME_ARITH_RGB24:\n\n case FRAME_U_RGB24:\n\n if (frametype == FRAME_ARITH_RGB24 || frametype == FRAME_U_RGB24)\n\n avctx->pix_fmt = PIX_FMT_RGB24;\n\n\n\n if (avctx->get_buffer(avctx, p) < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"get_buffer() failed\\n\");\n\n return -1;\n\n }\n\n\n\n offs[0] = offset_bv;\n\n offs[1] = offset_gu;\n\n offs[2] = offset_ry;\n\n\n\n if (!l->rgb_planes) {\n\n l->rgb_stride = FFALIGN(avctx->width, 16);\n\n l->rgb_planes = av_malloc(l->rgb_stride * avctx->height * planes);\n\n if (!l->rgb_planes) {\n\n av_log(avctx, AV_LOG_ERROR, \"cannot allocate temporary buffer\\n\");\n\n return AVERROR(ENOMEM);\n\n }\n\n }\n\n for (i = 0; i < planes; i++)\n\n srcs[i] = l->rgb_planes + (i + 1) * l->rgb_stride * avctx->height - l->rgb_stride;\n\n if (offset_ry >= buf_size ||\n\n offset_gu >= buf_size ||\n\n offset_bv >= buf_size ||\n\n (planes == 4 && offs[3] >= buf_size)) {\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"Invalid frame offsets\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n for (i = 0; i < planes; i++)\n\n lag_decode_arith_plane(l, srcs[i],\n\n avctx->width, avctx->height,\n\n -l->rgb_stride, buf + offs[i],\n\n buf_size - offs[i]);\n\n dst = p->data[0];\n\n for (i = 0; i < planes; i++)\n\n srcs[i] = l->rgb_planes + i * l->rgb_stride * avctx->height;\n\n for (j = 0; j < avctx->height; j++) {\n\n for (i = 0; i < avctx->width; i++) {\n\n uint8_t r, g, b, a;\n\n r = srcs[0][i];\n\n g = srcs[1][i];\n\n b = srcs[2][i];\n\n r += g;\n\n b += g;\n\n if (frametype == FRAME_ARITH_RGBA) {\n\n a = srcs[3][i];\n\n AV_WN32(dst + i * 4, MKBETAG(a, r, g, b));\n\n } else {\n\n dst[i * 3 + 0] = r;\n\n dst[i * 3 + 1] = g;\n\n dst[i * 3 + 2] = b;\n\n }\n\n }\n\n dst += p->linesize[0];\n\n for (i = 0; i < planes; i++)\n\n srcs[i] += l->rgb_stride;\n\n }\n\n break;\n\n case FRAME_ARITH_YUY2:\n\n avctx->pix_fmt = PIX_FMT_YUV422P;\n\n\n\n if (avctx->get_buffer(avctx, p) < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"get_buffer() failed\\n\");\n\n return -1;\n\n }\n\n\n\n if (offset_ry >= buf_size ||\n\n offset_gu >= buf_size ||\n\n offset_bv >= buf_size) {\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"Invalid frame offsets\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n lag_decode_arith_plane(l, p->data[0], avctx->width, avctx->height,\n\n p->linesize[0], buf + offset_ry,\n\n buf_size - offset_ry);\n\n lag_decode_arith_plane(l, p->data[2], avctx->width / 2,\n\n avctx->height, p->linesize[2],\n\n buf + offset_gu, buf_size - offset_gu);\n\n lag_decode_arith_plane(l, p->data[1], avctx->width / 2,\n\n avctx->height, p->linesize[1],\n\n buf + offset_bv, buf_size - offset_bv);\n\n break;\n\n case FRAME_ARITH_YV12:\n\n avctx->pix_fmt = PIX_FMT_YUV420P;\n\n\n\n if (avctx->get_buffer(avctx, p) < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"get_buffer() failed\\n\");\n\n return -1;\n\n }\n\n\n\n if (offset_ry >= buf_size ||\n\n offset_gu >= buf_size ||\n\n offset_bv >= buf_size) {\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"Invalid frame offsets\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n lag_decode_arith_plane(l, p->data[0], avctx->width, avctx->height,\n\n p->linesize[0], buf + offset_ry,\n\n buf_size - offset_ry);\n\n lag_decode_arith_plane(l, p->data[2], avctx->width / 2,\n\n avctx->height / 2, p->linesize[2],\n\n buf + offset_gu, buf_size - offset_gu);\n\n lag_decode_arith_plane(l, p->data[1], avctx->width / 2,\n\n avctx->height / 2, p->linesize[1],\n\n buf + offset_bv, buf_size - offset_bv);\n\n break;\n\n default:\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"Unsupported Lagarith frame type: %#x\\n\", frametype);\n\n return -1;\n\n }\n\n\n\n *picture = *p;\n\n *data_size = sizeof(AVFrame);\n\n\n\n return buf_size;\n\n}\n", + "output": "1", + "index": 16375 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int asf_write_header1(AVFormatContext *s, int64_t file_size,\n\n int64_t data_chunk_size)\n\n{\n\n ASFContext *asf = s->priv_data;\n\n AVIOContext *pb = s->pb;\n\n AVDictionaryEntry *tags[5];\n\n int header_size, n, extra_size, extra_size2, wav_extra_size, file_time;\n\n int has_title, has_aspect_ratio = 0;\n\n int metadata_count;\n\n AVCodecContext *enc;\n\n int64_t header_offset, cur_pos, hpos;\n\n int bit_rate;\n\n int64_t duration;\n\n\n\n ff_metadata_conv(&s->metadata, ff_asf_metadata_conv, NULL);\n\n\n\n tags[0] = av_dict_get(s->metadata, \"title\", NULL, 0);\n\n tags[1] = av_dict_get(s->metadata, \"author\", NULL, 0);\n\n tags[2] = av_dict_get(s->metadata, \"copyright\", NULL, 0);\n\n tags[3] = av_dict_get(s->metadata, \"comment\", NULL, 0);\n\n tags[4] = av_dict_get(s->metadata, \"rating\", NULL, 0);\n\n\n\n duration = asf->duration + PREROLL_TIME * 10000;\n\n has_title = tags[0] || tags[1] || tags[2] || tags[3] || tags[4];\n\n metadata_count = av_dict_count(s->metadata);\n\n\n\n bit_rate = 0;\n\n for (n = 0; n < s->nb_streams; n++) {\n\n enc = s->streams[n]->codec;\n\n\n\n avpriv_set_pts_info(s->streams[n], 32, 1, 1000); /* 32 bit pts in ms */\n\n\n\n bit_rate += enc->bit_rate;\n\n if ( enc->codec_type == AVMEDIA_TYPE_VIDEO\n\n && enc->sample_aspect_ratio.num > 0\n\n && enc->sample_aspect_ratio.den > 0)\n\n has_aspect_ratio++;\n\n }\n\n\n\n if (asf->is_streamed) {\n\n put_chunk(s, 0x4824, 0, 0xc00); /* start of stream (length will be patched later) */\n\n }\n\n\n\n ff_put_guid(pb, &ff_asf_header);\n\n avio_wl64(pb, -1); /* header length, will be patched after */\n\n avio_wl32(pb, 3 + has_title + !!metadata_count + s->nb_streams); /* number of chunks in header */\n\n avio_w8(pb, 1); /* ??? */\n\n avio_w8(pb, 2); /* ??? */\n\n\n\n /* file header */\n\n header_offset = avio_tell(pb);\n\n hpos = put_header(pb, &ff_asf_file_header);\n\n ff_put_guid(pb, &ff_asf_my_guid);\n\n avio_wl64(pb, file_size);\n\n file_time = 0;\n\n avio_wl64(pb, unix_to_file_time(file_time));\n\n avio_wl64(pb, asf->nb_packets); /* number of packets */\n\n avio_wl64(pb, duration); /* end time stamp (in 100ns units) */\n\n avio_wl64(pb, asf->duration); /* duration (in 100ns units) */\n\n avio_wl64(pb, PREROLL_TIME); /* start time stamp */\n\n avio_wl32(pb, (asf->is_streamed || !pb->seekable) ? 3 : 2); /* ??? */\n\n avio_wl32(pb, s->packet_size); /* packet size */\n\n avio_wl32(pb, s->packet_size); /* packet size */\n\n avio_wl32(pb, bit_rate ? bit_rate : -1); /* Maximum data rate in bps */\n\n end_header(pb, hpos);\n\n\n\n /* unknown headers */\n\n hpos = put_header(pb, &ff_asf_head1_guid);\n\n ff_put_guid(pb, &ff_asf_head2_guid);\n\n avio_wl16(pb, 6);\n\n if (has_aspect_ratio) {\n\n int64_t hpos2;\n\n avio_wl32(pb, 26 + has_aspect_ratio * 84);\n\n hpos2 = put_header(pb, &ff_asf_metadata_header);\n\n avio_wl16(pb, 2 * has_aspect_ratio);\n\n for (n = 0; n < s->nb_streams; n++) {\n\n enc = s->streams[n]->codec;\n\n if ( enc->codec_type == AVMEDIA_TYPE_VIDEO\n\n && enc->sample_aspect_ratio.num > 0\n\n && enc->sample_aspect_ratio.den > 0) {\n\n AVRational sar = enc->sample_aspect_ratio;\n\n avio_wl16(pb, 0);\n\n // the stream number is set like this below\n\n avio_wl16(pb, n + 1);\n\n avio_wl16(pb, 26); // name_len\n\n avio_wl16(pb, 3); // value_type\n\n avio_wl32(pb, 4); // value_len\n\n avio_put_str16le(pb, \"AspectRatioX\");\n\n avio_wl32(pb, sar.num);\n\n avio_wl16(pb, 0);\n\n // the stream number is set like this below\n\n avio_wl16(pb, n + 1);\n\n avio_wl16(pb, 26); // name_len\n\n avio_wl16(pb, 3); // value_type\n\n avio_wl32(pb, 4); // value_len\n\n avio_put_str16le(pb, \"AspectRatioY\");\n\n avio_wl32(pb, sar.den);\n\n }\n\n }\n\n end_header(pb, hpos2);\n\n } else {\n\n avio_wl32(pb, 0);\n\n }\n\n end_header(pb, hpos);\n\n\n\n /* title and other infos */\n\n if (has_title) {\n\n int len;\n\n uint8_t *buf;\n\n AVIOContext *dyn_buf;\n\n\n\n if (avio_open_dyn_buf(&dyn_buf) < 0)\n\n return AVERROR(ENOMEM);\n\n\n\n hpos = put_header(pb, &ff_asf_comment_header);\n\n\n\n for (n = 0; n < FF_ARRAY_ELEMS(tags); n++) {\n\n len = tags[n] ? avio_put_str16le(dyn_buf, tags[n]->value) : 0;\n\n avio_wl16(pb, len);\n\n }\n\n len = avio_close_dyn_buf(dyn_buf, &buf);\n\n avio_write(pb, buf, len);\n\n av_freep(&buf);\n\n end_header(pb, hpos);\n\n }\n\n if (metadata_count) {\n\n AVDictionaryEntry *tag = NULL;\n\n hpos = put_header(pb, &ff_asf_extended_content_header);\n\n avio_wl16(pb, metadata_count);\n\n while ((tag = av_dict_get(s->metadata, \"\", tag, AV_DICT_IGNORE_SUFFIX))) {\n\n put_str16(pb, tag->key);\n\n avio_wl16(pb, 0);\n\n put_str16(pb, tag->value);\n\n }\n\n end_header(pb, hpos);\n\n }\n\n /* chapters using ASF markers */\n\n if (!asf->is_streamed && s->nb_chapters) {\n\n int ret;\n\n if (ret = asf_write_markers(s))\n\n return ret;\n\n }\n\n /* stream headers */\n\n for (n = 0; n < s->nb_streams; n++) {\n\n int64_t es_pos;\n\n // ASFStream *stream = &asf->streams[n];\n\n\n\n enc = s->streams[n]->codec;\n\n asf->streams[n].num = n + 1;\n\n asf->streams[n].seq = 1;\n\n\n\n switch (enc->codec_type) {\n\n case AVMEDIA_TYPE_AUDIO:\n\n wav_extra_size = 0;\n\n extra_size = 18 + wav_extra_size;\n\n extra_size2 = 8;\n\n break;\n\n default:\n\n case AVMEDIA_TYPE_VIDEO:\n\n wav_extra_size = enc->extradata_size;\n\n extra_size = 0x33 + wav_extra_size;\n\n extra_size2 = 0;\n\n break;\n\n }\n\n\n\n hpos = put_header(pb, &ff_asf_stream_header);\n\n if (enc->codec_type == AVMEDIA_TYPE_AUDIO) {\n\n ff_put_guid(pb, &ff_asf_audio_stream);\n\n ff_put_guid(pb, &ff_asf_audio_conceal_spread);\n\n } else {\n\n ff_put_guid(pb, &ff_asf_video_stream);\n\n ff_put_guid(pb, &ff_asf_video_conceal_none);\n\n }\n\n avio_wl64(pb, 0); /* ??? */\n\n es_pos = avio_tell(pb);\n\n avio_wl32(pb, extra_size); /* wav header len */\n\n avio_wl32(pb, extra_size2); /* additional data len */\n\n avio_wl16(pb, n + 1); /* stream number */\n\n avio_wl32(pb, 0); /* ??? */\n\n\n\n if (enc->codec_type == AVMEDIA_TYPE_AUDIO) {\n\n /* WAVEFORMATEX header */\n\n int wavsize = ff_put_wav_header(pb, enc, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX);\n\n\n\n if (wavsize < 0)\n\n return -1;\n\n if (wavsize != extra_size) {\n\n cur_pos = avio_tell(pb);\n\n avio_seek(pb, es_pos, SEEK_SET);\n\n avio_wl32(pb, wavsize); /* wav header len */\n\n avio_seek(pb, cur_pos, SEEK_SET);\n\n }\n\n /* ERROR Correction */\n\n avio_w8(pb, 0x01);\n\n if (enc->codec_id == AV_CODEC_ID_ADPCM_G726 || !enc->block_align) {\n\n avio_wl16(pb, 0x0190);\n\n avio_wl16(pb, 0x0190);\n\n } else {\n\n avio_wl16(pb, enc->block_align);\n\n avio_wl16(pb, enc->block_align);\n\n }\n\n avio_wl16(pb, 0x01);\n\n avio_w8(pb, 0x00);\n\n } else {\n\n avio_wl32(pb, enc->width);\n\n avio_wl32(pb, enc->height);\n\n avio_w8(pb, 2); /* ??? */\n\n avio_wl16(pb, 40 + enc->extradata_size); /* size */\n\n\n\n /* BITMAPINFOHEADER header */\n\n ff_put_bmp_header(pb, enc, ff_codec_bmp_tags, 1, 0);\n\n }\n\n end_header(pb, hpos);\n\n }\n\n\n\n /* media comments */\n\n\n\n hpos = put_header(pb, &ff_asf_codec_comment_header);\n\n ff_put_guid(pb, &ff_asf_codec_comment1_header);\n\n avio_wl32(pb, s->nb_streams);\n\n for (n = 0; n < s->nb_streams; n++) {\n\n const AVCodecDescriptor *codec_desc;\n\n const char *desc;\n\n\n\n enc = s->streams[n]->codec;\n\n codec_desc = avcodec_descriptor_get(enc->codec_id);\n\n\n\n if (enc->codec_type == AVMEDIA_TYPE_AUDIO)\n\n avio_wl16(pb, 2);\n\n else if (enc->codec_type == AVMEDIA_TYPE_VIDEO)\n\n avio_wl16(pb, 1);\n\n else\n\n avio_wl16(pb, -1);\n\n\n\n if (enc->codec_id == AV_CODEC_ID_WMAV2)\n\n desc = \"Windows Media Audio V8\";\n\n else\n\n desc = codec_desc ? codec_desc->name : NULL;\n\n\n\n if (desc) {\n\n AVIOContext *dyn_buf;\n\n uint8_t *buf;\n\n int len;\n\n\n\n if (avio_open_dyn_buf(&dyn_buf) < 0)\n\n return AVERROR(ENOMEM);\n\n\n\n avio_put_str16le(dyn_buf, desc);\n\n len = avio_close_dyn_buf(dyn_buf, &buf);\n\n avio_wl16(pb, len / 2); // \"number of characters\" = length in bytes / 2\n\n\n\n avio_write(pb, buf, len);\n\n av_freep(&buf);\n\n } else\n\n avio_wl16(pb, 0);\n\n\n\n avio_wl16(pb, 0); /* no parameters */\n\n\n\n /* id */\n\n if (enc->codec_type == AVMEDIA_TYPE_AUDIO) {\n\n avio_wl16(pb, 2);\n\n avio_wl16(pb, enc->codec_tag);\n\n } else {\n\n avio_wl16(pb, 4);\n\n avio_wl32(pb, enc->codec_tag);\n\n }\n\n if (!enc->codec_tag)\n\n return -1;\n\n }\n\n end_header(pb, hpos);\n\n\n\n /* patch the header size fields */\n\n\n\n cur_pos = avio_tell(pb);\n\n header_size = cur_pos - header_offset;\n\n if (asf->is_streamed) {\n\n header_size += 8 + 30 + DATA_HEADER_SIZE;\n\n\n\n avio_seek(pb, header_offset - 10 - 30, SEEK_SET);\n\n avio_wl16(pb, header_size);\n\n avio_seek(pb, header_offset - 2 - 30, SEEK_SET);\n\n avio_wl16(pb, header_size);\n\n\n\n header_size -= 8 + 30 + DATA_HEADER_SIZE;\n\n }\n\n header_size += 24 + 6;\n\n avio_seek(pb, header_offset - 14, SEEK_SET);\n\n avio_wl64(pb, header_size);\n\n avio_seek(pb, cur_pos, SEEK_SET);\n\n\n\n /* movie chunk, followed by packets of packet_size */\n\n asf->data_offset = cur_pos;\n\n ff_put_guid(pb, &ff_asf_data_header);\n\n avio_wl64(pb, data_chunk_size);\n\n ff_put_guid(pb, &ff_asf_my_guid);\n\n avio_wl64(pb, asf->nb_packets); /* nb packets */\n\n avio_w8(pb, 1); /* ??? */\n\n avio_w8(pb, 1); /* ??? */\n\n return 0;\n\n}\n", + "output": "0", + "index": 3197 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int ff_h264_decode_seq_parameter_set(H264Context *h)\n\n{\n\n int profile_idc, level_idc, constraint_set_flags = 0;\n\n unsigned int sps_id;\n\n int i, log2_max_frame_num_minus4;\n\n SPS *sps;\n\n\n\n profile_idc = get_bits(&h->gb, 8);\n\n constraint_set_flags |= get_bits1(&h->gb) << 0; // constraint_set0_flag\n\n constraint_set_flags |= get_bits1(&h->gb) << 1; // constraint_set1_flag\n\n constraint_set_flags |= get_bits1(&h->gb) << 2; // constraint_set2_flag\n\n constraint_set_flags |= get_bits1(&h->gb) << 3; // constraint_set3_flag\n\n constraint_set_flags |= get_bits1(&h->gb) << 4; // constraint_set4_flag\n\n constraint_set_flags |= get_bits1(&h->gb) << 5; // constraint_set5_flag\n\n skip_bits(&h->gb, 2); // reserved_zero_2bits\n\n level_idc = get_bits(&h->gb, 8);\n\n sps_id = get_ue_golomb_31(&h->gb);\n\n\n\n if (sps_id >= MAX_SPS_COUNT) {\n\n av_log(h->avctx, AV_LOG_ERROR, \"sps_id %u out of range\\n\", sps_id);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n sps = av_mallocz(sizeof(SPS));\n\n if (!sps)\n\n return AVERROR(ENOMEM);\n\n\n\n sps->sps_id = sps_id;\n\n sps->time_offset_length = 24;\n\n sps->profile_idc = profile_idc;\n\n sps->constraint_set_flags = constraint_set_flags;\n\n sps->level_idc = level_idc;\n\n\n\n memset(sps->scaling_matrix4, 16, sizeof(sps->scaling_matrix4));\n\n memset(sps->scaling_matrix8, 16, sizeof(sps->scaling_matrix8));\n\n sps->scaling_matrix_present = 0;\n\n\n\n if (sps->profile_idc == 100 || // High profile\n\n sps->profile_idc == 110 || // High10 profile\n\n sps->profile_idc == 122 || // High422 profile\n\n sps->profile_idc == 244 || // High444 Predictive profile\n\n sps->profile_idc == 44 || // Cavlc444 profile\n\n sps->profile_idc == 83 || // Scalable Constrained High profile (SVC)\n\n sps->profile_idc == 86 || // Scalable High Intra profile (SVC)\n\n sps->profile_idc == 118 || // Stereo High profile (MVC)\n\n sps->profile_idc == 128 || // Multiview High profile (MVC)\n\n sps->profile_idc == 138 || // Multiview Depth High profile (MVCD)\n\n sps->profile_idc == 144) { // old High444 profile\n\n sps->chroma_format_idc = get_ue_golomb_31(&h->gb);\n\n if (sps->chroma_format_idc > 3) {\n\n avpriv_request_sample(h->avctx, \"chroma_format_idc %u\",\n\n sps->chroma_format_idc);\n\n goto fail;\n\n } else if (sps->chroma_format_idc == 3) {\n\n sps->residual_color_transform_flag = get_bits1(&h->gb);\n\n }\n\n sps->bit_depth_luma = get_ue_golomb(&h->gb) + 8;\n\n sps->bit_depth_chroma = get_ue_golomb(&h->gb) + 8;\n\n if (sps->bit_depth_chroma != sps->bit_depth_luma) {\n\n avpriv_request_sample(h->avctx,\n\n \"Different chroma and luma bit depth\");\n\n goto fail;\n\n }\n\n sps->transform_bypass = get_bits1(&h->gb);\n\n decode_scaling_matrices(h, sps, NULL, 1,\n\n sps->scaling_matrix4, sps->scaling_matrix8);\n\n } else {\n\n sps->chroma_format_idc = 1;\n\n sps->bit_depth_luma = 8;\n\n sps->bit_depth_chroma = 8;\n\n }\n\n\n\n log2_max_frame_num_minus4 = get_ue_golomb(&h->gb);\n\n if (log2_max_frame_num_minus4 < MIN_LOG2_MAX_FRAME_NUM - 4 ||\n\n log2_max_frame_num_minus4 > MAX_LOG2_MAX_FRAME_NUM - 4) {\n\n av_log(h->avctx, AV_LOG_ERROR,\n\n \"log2_max_frame_num_minus4 out of range (0-12): %d\\n\",\n\n log2_max_frame_num_minus4);\n\n goto fail;\n\n }\n\n sps->log2_max_frame_num = log2_max_frame_num_minus4 + 4;\n\n\n\n sps->poc_type = get_ue_golomb_31(&h->gb);\n\n\n\n if (sps->poc_type == 0) { // FIXME #define\n\n sps->log2_max_poc_lsb = get_ue_golomb(&h->gb) + 4;\n\n } else if (sps->poc_type == 1) { // FIXME #define\n\n sps->delta_pic_order_always_zero_flag = get_bits1(&h->gb);\n\n sps->offset_for_non_ref_pic = get_se_golomb(&h->gb);\n\n sps->offset_for_top_to_bottom_field = get_se_golomb(&h->gb);\n\n sps->poc_cycle_length = get_ue_golomb(&h->gb);\n\n\n\n if ((unsigned)sps->poc_cycle_length >=\n\n FF_ARRAY_ELEMS(sps->offset_for_ref_frame)) {\n\n av_log(h->avctx, AV_LOG_ERROR,\n\n \"poc_cycle_length overflow %d\\n\", sps->poc_cycle_length);\n\n goto fail;\n\n }\n\n\n\n for (i = 0; i < sps->poc_cycle_length; i++)\n\n sps->offset_for_ref_frame[i] = get_se_golomb(&h->gb);\n\n } else if (sps->poc_type != 2) {\n\n av_log(h->avctx, AV_LOG_ERROR, \"illegal POC type %d\\n\", sps->poc_type);\n\n goto fail;\n\n }\n\n\n\n sps->ref_frame_count = get_ue_golomb_31(&h->gb);\n\n if (sps->ref_frame_count > H264_MAX_PICTURE_COUNT - 2 ||\n\n sps->ref_frame_count >= 32U) {\n\n av_log(h->avctx, AV_LOG_ERROR,\n\n \"too many reference frames %d\\n\", sps->ref_frame_count);\n\n goto fail;\n\n }\n\n sps->gaps_in_frame_num_allowed_flag = get_bits1(&h->gb);\n\n sps->mb_width = get_ue_golomb(&h->gb) + 1;\n\n sps->mb_height = get_ue_golomb(&h->gb) + 1;\n\n if ((unsigned)sps->mb_width >= INT_MAX / 16 ||\n\n (unsigned)sps->mb_height >= INT_MAX / 16 ||\n\n av_image_check_size(16 * sps->mb_width,\n\n 16 * sps->mb_height, 0, h->avctx)) {\n\n av_log(h->avctx, AV_LOG_ERROR, \"mb_width/height overflow\\n\");\n\n goto fail;\n\n }\n\n\n\n sps->frame_mbs_only_flag = get_bits1(&h->gb);\n\n if (!sps->frame_mbs_only_flag)\n\n sps->mb_aff = get_bits1(&h->gb);\n\n else\n\n sps->mb_aff = 0;\n\n\n\n sps->direct_8x8_inference_flag = get_bits1(&h->gb);\n\n if (!sps->frame_mbs_only_flag && !sps->direct_8x8_inference_flag) {\n\n av_log(h->avctx, AV_LOG_ERROR,\n\n \"This stream was generated by a broken encoder, invalid 8x8 inference\\n\");\n\n goto fail;\n\n }\n\n\n\n#ifndef ALLOW_INTERLACE\n\n if (sps->mb_aff)\n\n av_log(h->avctx, AV_LOG_ERROR,\n\n \"MBAFF support not included; enable it at compile-time.\\n\");\n\n#endif\n\n sps->crop = get_bits1(&h->gb);\n\n if (sps->crop) {\n\n unsigned int crop_left = get_ue_golomb(&h->gb);\n\n unsigned int crop_right = get_ue_golomb(&h->gb);\n\n unsigned int crop_top = get_ue_golomb(&h->gb);\n\n unsigned int crop_bottom = get_ue_golomb(&h->gb);\n\n\n\n if (h->avctx->flags2 & AV_CODEC_FLAG2_IGNORE_CROP) {\n\n av_log(h->avctx, AV_LOG_DEBUG, \"discarding sps cropping, original \"\n\n \"values are l:%d r:%d t:%d b:%d\\n\",\n\n crop_left, crop_right, crop_top, crop_bottom);\n\n\n\n sps->crop_left =\n\n sps->crop_right =\n\n sps->crop_top =\n\n sps->crop_bottom = 0;\n\n } else {\n\n int vsub = (sps->chroma_format_idc == 1) ? 1 : 0;\n\n int hsub = (sps->chroma_format_idc == 1 ||\n\n sps->chroma_format_idc == 2) ? 1 : 0;\n\n int step_x = 1 << hsub;\n\n int step_y = (2 - sps->frame_mbs_only_flag) << vsub;\n\n\n\n if (crop_left & (0x1F >> (sps->bit_depth_luma > 8)) &&\n\n !(h->avctx->flags & AV_CODEC_FLAG_UNALIGNED)) {\n\n crop_left &= ~(0x1F >> (sps->bit_depth_luma > 8));\n\n av_log(h->avctx, AV_LOG_WARNING,\n\n \"Reducing left cropping to %d \"\n\n \"chroma samples to preserve alignment.\\n\",\n\n crop_left);\n\n }\n\n\n\n if (INT_MAX / step_x <= crop_left ||\n\n INT_MAX / step_x - crop_left <= crop_right ||\n\n 16 * sps->mb_width <= step_x * (crop_left + crop_right) ||\n\n INT_MAX / step_y <= crop_top ||\n\n INT_MAX / step_y - crop_top <= crop_bottom ||\n\n 16 * sps->mb_height <= step_y * (crop_top + crop_bottom)) {\n\n av_log(h->avctx, AV_LOG_WARNING, \"Invalid crop parameters\\n\");\n\n if (h->avctx->err_recognition & AV_EF_EXPLODE)\n\n goto fail;\n\n crop_left = crop_right = crop_top = crop_bottom = 0;\n\n }\n\n\n\n sps->crop_left = crop_left * step_x;\n\n sps->crop_right = crop_right * step_x;\n\n sps->crop_top = crop_top * step_y;\n\n sps->crop_bottom = crop_bottom * step_y;\n\n }\n\n } else {\n\n sps->crop_left =\n\n sps->crop_right =\n\n sps->crop_top =\n\n sps->crop_bottom =\n\n sps->crop = 0;\n\n }\n\n\n\n sps->vui_parameters_present_flag = get_bits1(&h->gb);\n\n if (sps->vui_parameters_present_flag) {\n\n int ret = decode_vui_parameters(h, sps);\n\n if (ret < 0 && h->avctx->err_recognition & AV_EF_EXPLODE)\n\n goto fail;\n\n }\n\n\n\n /* if the maximum delay is not stored in the SPS, derive it based on the\n\n * level */\n\n if (!sps->bitstream_restriction_flag) {\n\n sps->num_reorder_frames = MAX_DELAYED_PIC_COUNT - 1;\n\n for (i = 0; i < FF_ARRAY_ELEMS(level_max_dpb_mbs); i++) {\n\n if (level_max_dpb_mbs[i][0] == sps->level_idc) {\n\n sps->num_reorder_frames = FFMIN(level_max_dpb_mbs[i][1] / (sps->mb_width * sps->mb_height),\n\n sps->num_reorder_frames);\n\n break;\n\n }\n\n }\n\n }\n\n\n\n if (!sps->sar.den)\n\n sps->sar.den = 1;\n\n\n\n if (h->avctx->debug & FF_DEBUG_PICT_INFO) {\n\n static const char csp[4][5] = { \"Gray\", \"420\", \"422\", \"444\" };\n\n av_log(h->avctx, AV_LOG_DEBUG,\n\n \"sps:%u profile:%d/%d poc:%d ref:%d %dx%d %s %s crop:%u/%u/%u/%u %s %s %\"PRId32\"/%\"PRId32\"\\n\",\n\n sps_id, sps->profile_idc, sps->level_idc,\n\n sps->poc_type,\n\n sps->ref_frame_count,\n\n sps->mb_width, sps->mb_height,\n\n sps->frame_mbs_only_flag ? \"FRM\" : (sps->mb_aff ? \"MB-AFF\" : \"PIC-AFF\"),\n\n sps->direct_8x8_inference_flag ? \"8B8\" : \"\",\n\n sps->crop_left, sps->crop_right,\n\n sps->crop_top, sps->crop_bottom,\n\n sps->vui_parameters_present_flag ? \"VUI\" : \"\",\n\n csp[sps->chroma_format_idc],\n\n sps->timing_info_present_flag ? sps->num_units_in_tick : 0,\n\n sps->timing_info_present_flag ? sps->time_scale : 0);\n\n }\n\n sps->new = 1;\n\n\n\n av_free(h->sps_buffers[sps_id]);\n\n h->sps_buffers[sps_id] = sps;\n\n h->sps = *sps;\n\n\n\n return 0;\n\n\n\nfail:\n\n av_free(sps);\n\n return AVERROR_INVALIDDATA;\n\n}\n", + "output": "0", + "index": 17788 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int ff_rtsp_fetch_packet(AVFormatContext *s, AVPacket *pkt)\n\n{\n\n RTSPState *rt = s->priv_data;\n\n int ret, len;\n\n RTSPStream *rtsp_st, *first_queue_st = NULL;\n\n int64_t wait_end = 0;\n\n\n\n if (rt->nb_byes == rt->nb_rtsp_streams)\n\n return AVERROR_EOF;\n\n\n\n /* get next frames from the same RTP packet */\n\n if (rt->cur_transport_priv) {\n\n if (rt->transport == RTSP_TRANSPORT_RDT) {\n\n ret = ff_rdt_parse_packet(rt->cur_transport_priv, pkt, NULL, 0);\n\n } else if (rt->transport == RTSP_TRANSPORT_RTP) {\n\n ret = ff_rtp_parse_packet(rt->cur_transport_priv, pkt, NULL, 0);\n\n } else if (rt->ts && CONFIG_RTPDEC) {\n\n ret = ff_mpegts_parse_packet(rt->ts, pkt, rt->recvbuf + rt->recvbuf_pos, rt->recvbuf_len - rt->recvbuf_pos);\n\n if (ret >= 0) {\n\n rt->recvbuf_pos += ret;\n\n ret = rt->recvbuf_pos < rt->recvbuf_len;\n\n }\n\n } else\n\n ret = -1;\n\n if (ret == 0) {\n\n rt->cur_transport_priv = NULL;\n\n return 0;\n\n } else if (ret == 1) {\n\n return 0;\n\n } else\n\n rt->cur_transport_priv = NULL;\n\n }\n\n\n\nredo:\n\n if (rt->transport == RTSP_TRANSPORT_RTP) {\n\n int i;\n\n int64_t first_queue_time = 0;\n\n for (i = 0; i < rt->nb_rtsp_streams; i++) {\n\n RTPDemuxContext *rtpctx = rt->rtsp_streams[i]->transport_priv;\n\n int64_t queue_time;\n\n if (!rtpctx)\n\n continue;\n\n queue_time = ff_rtp_queued_packet_time(rtpctx);\n\n if (queue_time && (queue_time - first_queue_time < 0 ||\n\n !first_queue_time)) {\n\n first_queue_time = queue_time;\n\n first_queue_st = rt->rtsp_streams[i];\n\n }\n\n }\n\n if (first_queue_time) {\n\n wait_end = first_queue_time + s->max_delay;\n\n } else {\n\n wait_end = 0;\n\n first_queue_st = NULL;\n\n }\n\n }\n\n\n\n /* read next RTP packet */\n\n if (!rt->recvbuf) {\n\n rt->recvbuf = av_malloc(RECVBUF_SIZE);\n\n if (!rt->recvbuf)\n\n return AVERROR(ENOMEM);\n\n }\n\n\n\n switch(rt->lower_transport) {\n\n default:\n\n#if CONFIG_RTSP_DEMUXER\n\n case RTSP_LOWER_TRANSPORT_TCP:\n\n len = ff_rtsp_tcp_read_packet(s, &rtsp_st, rt->recvbuf, RECVBUF_SIZE);\n\n break;\n\n#endif\n\n case RTSP_LOWER_TRANSPORT_UDP:\n\n case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:\n\n len = udp_read_packet(s, &rtsp_st, rt->recvbuf, RECVBUF_SIZE, wait_end);\n\n if (len > 0 && rtsp_st->transport_priv && rt->transport == RTSP_TRANSPORT_RTP)\n\n ff_rtp_check_and_send_back_rr(rtsp_st->transport_priv, rtsp_st->rtp_handle, NULL, len);\n\n break;\n\n case RTSP_LOWER_TRANSPORT_CUSTOM:\n\n if (first_queue_st && rt->transport == RTSP_TRANSPORT_RTP &&\n\n wait_end && wait_end < av_gettime_relative())\n\n len = AVERROR(EAGAIN);\n\n else\n\n len = ffio_read_partial(s->pb, rt->recvbuf, RECVBUF_SIZE);\n\n len = pick_stream(s, &rtsp_st, rt->recvbuf, len);\n\n if (len > 0 && rtsp_st->transport_priv && rt->transport == RTSP_TRANSPORT_RTP)\n\n ff_rtp_check_and_send_back_rr(rtsp_st->transport_priv, NULL, s->pb, len);\n\n break;\n\n }\n\n if (len == AVERROR(EAGAIN) && first_queue_st &&\n\n rt->transport == RTSP_TRANSPORT_RTP) {\n\n rtsp_st = first_queue_st;\n\n ret = ff_rtp_parse_packet(rtsp_st->transport_priv, pkt, NULL, 0);\n\n goto end;\n\n }\n\n if (len < 0)\n\n return len;\n\n if (len == 0)\n\n return AVERROR_EOF;\n\n if (rt->transport == RTSP_TRANSPORT_RDT) {\n\n ret = ff_rdt_parse_packet(rtsp_st->transport_priv, pkt, &rt->recvbuf, len);\n\n } else if (rt->transport == RTSP_TRANSPORT_RTP) {\n\n ret = ff_rtp_parse_packet(rtsp_st->transport_priv, pkt, &rt->recvbuf, len);\n\n if (rtsp_st->feedback) {\n\n AVIOContext *pb = NULL;\n\n if (rt->lower_transport == RTSP_LOWER_TRANSPORT_CUSTOM)\n\n pb = s->pb;\n\n ff_rtp_send_rtcp_feedback(rtsp_st->transport_priv, rtsp_st->rtp_handle, pb);\n\n }\n\n if (ret < 0) {\n\n /* Either bad packet, or a RTCP packet. Check if the\n\n * first_rtcp_ntp_time field was initialized. */\n\n RTPDemuxContext *rtpctx = rtsp_st->transport_priv;\n\n if (rtpctx->first_rtcp_ntp_time != AV_NOPTS_VALUE) {\n\n /* first_rtcp_ntp_time has been initialized for this stream,\n\n * copy the same value to all other uninitialized streams,\n\n * in order to map their timestamp origin to the same ntp time\n\n * as this one. */\n\n int i;\n\n AVStream *st = NULL;\n\n if (rtsp_st->stream_index >= 0)\n\n st = s->streams[rtsp_st->stream_index];\n\n for (i = 0; i < rt->nb_rtsp_streams; i++) {\n\n RTPDemuxContext *rtpctx2 = rt->rtsp_streams[i]->transport_priv;\n\n AVStream *st2 = NULL;\n\n if (rt->rtsp_streams[i]->stream_index >= 0)\n\n st2 = s->streams[rt->rtsp_streams[i]->stream_index];\n\n if (rtpctx2 && st && st2 &&\n\n rtpctx2->first_rtcp_ntp_time == AV_NOPTS_VALUE) {\n\n rtpctx2->first_rtcp_ntp_time = rtpctx->first_rtcp_ntp_time;\n\n rtpctx2->rtcp_ts_offset = av_rescale_q(\n\n rtpctx->rtcp_ts_offset, st->time_base,\n\n st2->time_base);\n\n }\n\n }\n\n }\n\n if (ret == -RTCP_BYE) {\n\n rt->nb_byes++;\n\n\n\n av_log(s, AV_LOG_DEBUG, \"Received BYE for stream %d (%d/%d)\\n\",\n\n rtsp_st->stream_index, rt->nb_byes, rt->nb_rtsp_streams);\n\n\n\n if (rt->nb_byes == rt->nb_rtsp_streams)\n\n return AVERROR_EOF;\n\n }\n\n }\n\n } else if (rt->ts && CONFIG_RTPDEC) {\n\n ret = ff_mpegts_parse_packet(rt->ts, pkt, rt->recvbuf, len);\n\n if (ret >= 0) {\n\n if (ret < len) {\n\n rt->recvbuf_len = len;\n\n rt->recvbuf_pos = ret;\n\n rt->cur_transport_priv = rt->ts;\n\n return 1;\n\n } else {\n\n ret = 0;\n\n }\n\n }\n\n } else {\n\n return AVERROR_INVALIDDATA;\n\n }\n\nend:\n\n if (ret < 0)\n\n goto redo;\n\n if (ret == 1)\n\n /* more packets may follow, so we save the RTP context */\n\n rt->cur_transport_priv = rtsp_st->transport_priv;\n\n\n\n return ret;\n\n}\n", + "output": "1", + "index": 4779 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "PXA2xxState *pxa255_init(unsigned int sdram_size)\n\n{\n\n PXA2xxState *s;\n\n int iomemtype, i;\n\n DriveInfo *dinfo;\n\n\n\n s = (PXA2xxState *) qemu_mallocz(sizeof(PXA2xxState));\n\n\n\n s->env = cpu_init(\"pxa255\");\n\n if (!s->env) {\n\n fprintf(stderr, \"Unable to find CPU definition\\n\");\n\n exit(1);\n\n }\n\n s->reset = qemu_allocate_irqs(pxa2xx_reset, s, 1)[0];\n\n\n\n /* SDRAM & Internal Memory Storage */\n\n cpu_register_physical_memory(PXA2XX_SDRAM_BASE, sdram_size,\n\n qemu_ram_alloc(NULL, \"pxa255.sdram\",\n\n sdram_size) | IO_MEM_RAM);\n\n cpu_register_physical_memory(PXA2XX_INTERNAL_BASE, PXA2XX_INTERNAL_SIZE,\n\n qemu_ram_alloc(NULL, \"pxa255.internal\",\n\n PXA2XX_INTERNAL_SIZE) | IO_MEM_RAM);\n\n\n\n s->pic = pxa2xx_pic_init(0x40d00000, s->env);\n\n\n\n s->dma = pxa255_dma_init(0x40000000, s->pic[PXA2XX_PIC_DMA]);\n\n\n\n pxa25x_timer_init(0x40a00000, &s->pic[PXA2XX_PIC_OST_0]);\n\n\n\n s->gpio = pxa2xx_gpio_init(0x40e00000, s->env, s->pic, 85);\n\n\n\n dinfo = drive_get(IF_SD, 0, 0);\n\n if (!dinfo) {\n\n fprintf(stderr, \"qemu: missing SecureDigital device\\n\");\n\n exit(1);\n\n }\n\n s->mmc = pxa2xx_mmci_init(0x41100000, dinfo->bdrv,\n\n s->pic[PXA2XX_PIC_MMC], s->dma);\n\n\n\n for (i = 0; pxa255_serial[i].io_base; i ++)\n\n if (serial_hds[i]) {\n\n#ifdef TARGET_WORDS_BIGENDIAN\n\n serial_mm_init(pxa255_serial[i].io_base, 2,\n\n s->pic[pxa255_serial[i].irqn], 14745600/16,\n\n serial_hds[i], 1, 1);\n\n#else\n\n serial_mm_init(pxa255_serial[i].io_base, 2,\n\n s->pic[pxa255_serial[i].irqn], 14745600/16,\n\n serial_hds[i], 1, 0);\n\n#endif\n\n } else {\n\n break;\n\n }\n\n if (serial_hds[i])\n\n s->fir = pxa2xx_fir_init(0x40800000, s->pic[PXA2XX_PIC_ICP],\n\n s->dma, serial_hds[i]);\n\n\n\n s->lcd = pxa2xx_lcdc_init(0x44000000, s->pic[PXA2XX_PIC_LCD]);\n\n\n\n s->cm_base = 0x41300000;\n\n s->cm_regs[CCCR >> 2] = 0x02000210;\t/* 416.0 MHz */\n\n s->clkcfg = 0x00000009;\t\t/* Turbo mode active */\n\n iomemtype = cpu_register_io_memory(pxa2xx_cm_readfn,\n\n pxa2xx_cm_writefn, s, DEVICE_NATIVE_ENDIAN);\n\n cpu_register_physical_memory(s->cm_base, 0x1000, iomemtype);\n\n register_savevm(NULL, \"pxa2xx_cm\", 0, 0, pxa2xx_cm_save, pxa2xx_cm_load, s);\n\n\n\n cpu_arm_set_cp_io(s->env, 14, pxa2xx_cp14_read, pxa2xx_cp14_write, s);\n\n\n\n s->mm_base = 0x48000000;\n\n s->mm_regs[MDMRS >> 2] = 0x00020002;\n\n s->mm_regs[MDREFR >> 2] = 0x03ca4000;\n\n s->mm_regs[MECR >> 2] = 0x00000001;\t/* Two PC Card sockets */\n\n iomemtype = cpu_register_io_memory(pxa2xx_mm_readfn,\n\n pxa2xx_mm_writefn, s, DEVICE_NATIVE_ENDIAN);\n\n cpu_register_physical_memory(s->mm_base, 0x1000, iomemtype);\n\n register_savevm(NULL, \"pxa2xx_mm\", 0, 0, pxa2xx_mm_save, pxa2xx_mm_load, s);\n\n\n\n s->pm_base = 0x40f00000;\n\n iomemtype = cpu_register_io_memory(pxa2xx_pm_readfn,\n\n pxa2xx_pm_writefn, s, DEVICE_NATIVE_ENDIAN);\n\n cpu_register_physical_memory(s->pm_base, 0x100, iomemtype);\n\n register_savevm(NULL, \"pxa2xx_pm\", 0, 0, pxa2xx_pm_save, pxa2xx_pm_load, s);\n\n\n\n for (i = 0; pxa255_ssp[i].io_base; i ++);\n\n s->ssp = (SSIBus **)qemu_mallocz(sizeof(SSIBus *) * i);\n\n for (i = 0; pxa255_ssp[i].io_base; i ++) {\n\n DeviceState *dev;\n\n dev = sysbus_create_simple(\"pxa2xx-ssp\", pxa255_ssp[i].io_base,\n\n s->pic[pxa255_ssp[i].irqn]);\n\n s->ssp[i] = (SSIBus *)qdev_get_child_bus(dev, \"ssi\");\n\n }\n\n\n\n if (usb_enabled) {\n\n sysbus_create_simple(\"sysbus-ohci\", 0x4c000000,\n\n s->pic[PXA2XX_PIC_USBH1]);\n\n }\n\n\n\n s->pcmcia[0] = pxa2xx_pcmcia_init(0x20000000);\n\n s->pcmcia[1] = pxa2xx_pcmcia_init(0x30000000);\n\n\n\n s->rtc_base = 0x40900000;\n\n iomemtype = cpu_register_io_memory(pxa2xx_rtc_readfn,\n\n pxa2xx_rtc_writefn, s, DEVICE_NATIVE_ENDIAN);\n\n cpu_register_physical_memory(s->rtc_base, 0x1000, iomemtype);\n\n pxa2xx_rtc_init(s);\n\n register_savevm(NULL, \"pxa2xx_rtc\", 0, 0, pxa2xx_rtc_save,\n\n pxa2xx_rtc_load, s);\n\n\n\n s->i2c[0] = pxa2xx_i2c_init(0x40301600, s->pic[PXA2XX_PIC_I2C], 0xffff);\n\n s->i2c[1] = pxa2xx_i2c_init(0x40f00100, s->pic[PXA2XX_PIC_PWRI2C], 0xff);\n\n\n\n s->i2s = pxa2xx_i2s_init(0x40400000, s->pic[PXA2XX_PIC_I2S], s->dma);\n\n\n\n /* GPIO1 resets the processor */\n\n /* The handler can be overridden by board-specific code */\n\n qdev_connect_gpio_out(s->gpio, 1, s->reset);\n\n return s;\n\n}\n", + "output": "0", + "index": 1119 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int decompress_i(AVCodecContext *avctx, uint32_t *dst, int linesize)\n\n{\n\n SCPRContext *s = avctx->priv_data;\n\n GetByteContext *gb = &s->gb;\n\n int cx = 0, cx1 = 0, k = 0, clr = 0;\n\n int run, r, g, b, off, y = 0, x = 0, z, ret;\n\n unsigned backstep = linesize - avctx->width;\n\n const int cxshift = s->cxshift;\n\n unsigned lx, ly, ptype;\n\n\n\n reinit_tables(s);\n\n bytestream2_skip(gb, 2);\n\n init_rangecoder(&s->rc, gb);\n\n\n\n while (k < avctx->width + 1) {\n\n ret = decode_unit(s, &s->pixel_model[0][cx + cx1], 400, &r);\n\n if (ret < 0)\n\n return ret;\n\n\n\n cx1 = (cx << 6) & 0xFC0;\n\n cx = r >> cxshift;\n\n ret = decode_unit(s, &s->pixel_model[1][cx + cx1], 400, &g);\n\n if (ret < 0)\n\n return ret;\n\n\n\n cx1 = (cx << 6) & 0xFC0;\n\n cx = g >> cxshift;\n\n ret = decode_unit(s, &s->pixel_model[2][cx + cx1], 400, &b);\n\n if (ret < 0)\n\n return ret;\n\n\n\n cx1 = (cx << 6) & 0xFC0;\n\n cx = b >> cxshift;\n\n\n\n ret = decode_value(s, s->run_model[0], 256, 400, &run);\n\n if (ret < 0)\n\n return ret;\n\n\n\n clr = (b << 16) + (g << 8) + r;\n\n k += run;\n\n while (run-- > 0) {\n\n if (y >= avctx->height)\n\n return AVERROR_INVALIDDATA;\n\n\n\n dst[y * linesize + x] = clr;\n\n lx = x;\n\n ly = y;\n\n x++;\n\n if (x >= avctx->width) {\n\n x = 0;\n\n y++;\n\n }\n\n }\n\n }\n\n off = -linesize - 1;\n\n ptype = 0;\n\n\n\n while (x < avctx->width && y < avctx->height) {\n\n ret = decode_value(s, s->op_model[ptype], 6, 1000, &ptype);\n\n if (ret < 0)\n\n return ret;\n\n if (ptype == 0) {\n\n ret = decode_unit(s, &s->pixel_model[0][cx + cx1], 400, &r);\n\n if (ret < 0)\n\n return ret;\n\n\n\n cx1 = (cx << 6) & 0xFC0;\n\n cx = r >> cxshift;\n\n ret = decode_unit(s, &s->pixel_model[1][cx + cx1], 400, &g);\n\n if (ret < 0)\n\n return ret;\n\n\n\n cx1 = (cx << 6) & 0xFC0;\n\n cx = g >> cxshift;\n\n ret = decode_unit(s, &s->pixel_model[2][cx + cx1], 400, &b);\n\n if (ret < 0)\n\n return ret;\n\n\n\n clr = (b << 16) + (g << 8) + r;\n\n }\n\n if (ptype > 5)\n\n return AVERROR_INVALIDDATA;\n\n ret = decode_value(s, s->run_model[ptype], 256, 400, &run);\n\n if (ret < 0)\n\n return ret;\n\n\n\n switch (ptype) {\n\n case 0:\n\n while (run-- > 0) {\n\n if (y >= avctx->height)\n\n return AVERROR_INVALIDDATA;\n\n\n\n dst[y * linesize + x] = clr;\n\n lx = x;\n\n ly = y;\n\n x++;\n\n if (x >= avctx->width) {\n\n x = 0;\n\n y++;\n\n }\n\n }\n\n break;\n\n case 1:\n\n while (run-- > 0) {\n\n if (y >= avctx->height)\n\n return AVERROR_INVALIDDATA;\n\n\n\n dst[y * linesize + x] = dst[ly * linesize + lx];\n\n lx = x;\n\n ly = y;\n\n x++;\n\n if (x >= avctx->width) {\n\n x = 0;\n\n y++;\n\n }\n\n }\n\n clr = dst[ly * linesize + lx];\n\n break;\n\n case 2:\n\n while (run-- > 0) {\n\n if (y < 1 || y >= avctx->height)\n\n return AVERROR_INVALIDDATA;\n\n\n\n clr = dst[y * linesize + x + off + 1];\n\n dst[y * linesize + x] = clr;\n\n lx = x;\n\n ly = y;\n\n x++;\n\n if (x >= avctx->width) {\n\n x = 0;\n\n y++;\n\n }\n\n }\n\n break;\n\n case 4:\n\n while (run-- > 0) {\n\n uint8_t *odst = (uint8_t *)dst;\n\n\n\n if (y < 1 || y >= avctx->height ||\n\n (y == 1 && x == 0))\n\n return AVERROR_INVALIDDATA;\n\n\n\n if (x == 0) {\n\n z = backstep;\n\n } else {\n\n z = 0;\n\n }\n\n\n\n r = odst[(ly * linesize + lx) * 4] +\n\n odst[((y * linesize + x) + off - z) * 4 + 4] -\n\n odst[((y * linesize + x) + off - z) * 4];\n\n g = odst[(ly * linesize + lx) * 4 + 1] +\n\n odst[((y * linesize + x) + off - z) * 4 + 5] -\n\n odst[((y * linesize + x) + off - z) * 4 + 1];\n\n b = odst[(ly * linesize + lx) * 4 + 2] +\n\n odst[((y * linesize + x) + off - z) * 4 + 6] -\n\n odst[((y * linesize + x) + off - z) * 4 + 2];\n\n clr = ((b & 0xFF) << 16) + ((g & 0xFF) << 8) + (r & 0xFF);\n\n dst[y * linesize + x] = clr;\n\n lx = x;\n\n ly = y;\n\n x++;\n\n if (x >= avctx->width) {\n\n x = 0;\n\n y++;\n\n }\n\n }\n\n break;\n\n case 5:\n\n while (run-- > 0) {\n\n if (y < 1 || y >= avctx->height ||\n\n (y == 1 && x == 0))\n\n return AVERROR_INVALIDDATA;\n\n\n\n if (x == 0) {\n\n z = backstep;\n\n } else {\n\n z = 0;\n\n }\n\n\n\n clr = dst[y * linesize + x + off - z];\n\n dst[y * linesize + x] = clr;\n\n lx = x;\n\n ly = y;\n\n x++;\n\n if (x >= avctx->width) {\n\n x = 0;\n\n y++;\n\n }\n\n }\n\n break;\n\n }\n\n\n\n if (avctx->bits_per_coded_sample == 16) {\n\n cx1 = (clr & 0x3F00) >> 2;\n\n cx = (clr & 0xFFFFFF) >> 16;\n\n } else {\n\n cx1 = (clr & 0xFC00) >> 4;\n\n cx = (clr & 0xFFFFFF) >> 18;\n\n }\n\n }\n\n\n\n return 0;\n\n}\n", + "output": "1", + "index": 10111 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void spapr_populate_cpu_dt(CPUState *cs, void *fdt, int offset,\n\n sPAPRMachineState *spapr)\n\n{\n\n PowerPCCPU *cpu = POWERPC_CPU(cs);\n\n CPUPPCState *env = &cpu->env;\n\n PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cs);\n\n int index = ppc_get_vcpu_dt_id(cpu);\n\n uint32_t segs[] = {cpu_to_be32(28), cpu_to_be32(40),\n\n 0xffffffff, 0xffffffff};\n\n uint32_t tbfreq = kvm_enabled() ? kvmppc_get_tbfreq()\n\n : SPAPR_TIMEBASE_FREQ;\n\n uint32_t cpufreq = kvm_enabled() ? kvmppc_get_clockfreq() : 1000000000;\n\n uint32_t page_sizes_prop[64];\n\n size_t page_sizes_prop_size;\n\n uint32_t vcpus_per_socket = smp_threads * smp_cores;\n\n uint32_t pft_size_prop[] = {0, cpu_to_be32(spapr->htab_shift)};\n\n int compat_smt = MIN(smp_threads, ppc_compat_max_threads(cpu));\n\n sPAPRDRConnector *drc;\n\n sPAPRDRConnectorClass *drck;\n\n int drc_index;\n\n uint32_t radix_AP_encodings[PPC_PAGE_SIZES_MAX_SZ];\n\n int i;\n\n\n\n drc = spapr_dr_connector_by_id(SPAPR_DR_CONNECTOR_TYPE_CPU, index);\n\n if (drc) {\n\n drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);\n\n drc_index = drck->get_index(drc);\n\n _FDT((fdt_setprop_cell(fdt, offset, \"ibm,my-drc-index\", drc_index)));\n\n }\n\n\n\n _FDT((fdt_setprop_cell(fdt, offset, \"reg\", index)));\n\n _FDT((fdt_setprop_string(fdt, offset, \"device_type\", \"cpu\")));\n\n\n\n _FDT((fdt_setprop_cell(fdt, offset, \"cpu-version\", env->spr[SPR_PVR])));\n\n _FDT((fdt_setprop_cell(fdt, offset, \"d-cache-block-size\",\n\n env->dcache_line_size)));\n\n _FDT((fdt_setprop_cell(fdt, offset, \"d-cache-line-size\",\n\n env->dcache_line_size)));\n\n _FDT((fdt_setprop_cell(fdt, offset, \"i-cache-block-size\",\n\n env->icache_line_size)));\n\n _FDT((fdt_setprop_cell(fdt, offset, \"i-cache-line-size\",\n\n env->icache_line_size)));\n\n\n\n if (pcc->l1_dcache_size) {\n\n _FDT((fdt_setprop_cell(fdt, offset, \"d-cache-size\",\n\n pcc->l1_dcache_size)));\n\n } else {\n\n error_report(\"Warning: Unknown L1 dcache size for cpu\");\n\n }\n\n if (pcc->l1_icache_size) {\n\n _FDT((fdt_setprop_cell(fdt, offset, \"i-cache-size\",\n\n pcc->l1_icache_size)));\n\n } else {\n\n error_report(\"Warning: Unknown L1 icache size for cpu\");\n\n }\n\n\n\n _FDT((fdt_setprop_cell(fdt, offset, \"timebase-frequency\", tbfreq)));\n\n _FDT((fdt_setprop_cell(fdt, offset, \"clock-frequency\", cpufreq)));\n\n _FDT((fdt_setprop_cell(fdt, offset, \"slb-size\", env->slb_nr)));\n\n _FDT((fdt_setprop_cell(fdt, offset, \"ibm,slb-size\", env->slb_nr)));\n\n _FDT((fdt_setprop_string(fdt, offset, \"status\", \"okay\")));\n\n _FDT((fdt_setprop(fdt, offset, \"64-bit\", NULL, 0)));\n\n\n\n if (env->spr_cb[SPR_PURR].oea_read) {\n\n _FDT((fdt_setprop(fdt, offset, \"ibm,purr\", NULL, 0)));\n\n }\n\n\n\n if (env->mmu_model & POWERPC_MMU_1TSEG) {\n\n _FDT((fdt_setprop(fdt, offset, \"ibm,processor-segment-sizes\",\n\n segs, sizeof(segs))));\n\n }\n\n\n\n /* Advertise VMX/VSX (vector extensions) if available\n\n * 0 / no property == no vector extensions\n\n * 1 == VMX / Altivec available\n\n * 2 == VSX available */\n\n if (env->insns_flags & PPC_ALTIVEC) {\n\n uint32_t vmx = (env->insns_flags2 & PPC2_VSX) ? 2 : 1;\n\n\n\n _FDT((fdt_setprop_cell(fdt, offset, \"ibm,vmx\", vmx)));\n\n }\n\n\n\n /* Advertise DFP (Decimal Floating Point) if available\n\n * 0 / no property == no DFP\n\n * 1 == DFP available */\n\n if (env->insns_flags2 & PPC2_DFP) {\n\n _FDT((fdt_setprop_cell(fdt, offset, \"ibm,dfp\", 1)));\n\n }\n\n\n\n page_sizes_prop_size = ppc_create_page_sizes_prop(env, page_sizes_prop,\n\n sizeof(page_sizes_prop));\n\n if (page_sizes_prop_size) {\n\n _FDT((fdt_setprop(fdt, offset, \"ibm,segment-page-sizes\",\n\n page_sizes_prop, page_sizes_prop_size)));\n\n }\n\n\n\n spapr_populate_pa_features(env, fdt, offset);\n\n\n\n _FDT((fdt_setprop_cell(fdt, offset, \"ibm,chip-id\",\n\n cs->cpu_index / vcpus_per_socket)));\n\n\n\n _FDT((fdt_setprop(fdt, offset, \"ibm,pft-size\",\n\n pft_size_prop, sizeof(pft_size_prop))));\n\n\n\n _FDT(spapr_fixup_cpu_numa_dt(fdt, offset, cs));\n\n\n\n _FDT(spapr_fixup_cpu_smt_dt(fdt, offset, cpu, compat_smt));\n\n\n\n if (pcc->radix_page_info) {\n\n for (i = 0; i < pcc->radix_page_info->count; i++) {\n\n radix_AP_encodings[i] =\n\n cpu_to_be32(pcc->radix_page_info->entries[i]);\n\n }\n\n _FDT((fdt_setprop(fdt, offset, \"ibm,processor-radix-AP-encodings\",\n\n radix_AP_encodings,\n\n pcc->radix_page_info->count *\n\n sizeof(radix_AP_encodings[0]))));\n\n }\n\n}\n", + "output": "1", + "index": 24648 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int ra144_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,\n\n const AVFrame *frame, int *got_packet_ptr)\n\n{\n\n static const uint8_t sizes[LPC_ORDER] = {64, 32, 32, 16, 16, 8, 8, 8, 8, 4};\n\n static const uint8_t bit_sizes[LPC_ORDER] = {6, 5, 5, 4, 4, 3, 3, 3, 3, 2};\n\n RA144Context *ractx = avctx->priv_data;\n\n PutBitContext pb;\n\n int32_t lpc_data[NBLOCKS * BLOCKSIZE];\n\n int32_t lpc_coefs[LPC_ORDER][MAX_LPC_ORDER];\n\n int shift[LPC_ORDER];\n\n int16_t block_coefs[NBLOCKS][LPC_ORDER];\n\n int lpc_refl[LPC_ORDER]; /**< reflection coefficients of the frame */\n\n unsigned int refl_rms[NBLOCKS]; /**< RMS of the reflection coefficients */\n\n const int16_t *samples = frame ? (const int16_t *)frame->data[0] : NULL;\n\n int energy = 0;\n\n int i, idx, ret;\n\n\n\n if (ractx->last_frame)\n\n return 0;\n\n\n\n if ((ret = ff_alloc_packet2(avctx, avpkt, FRAMESIZE)))\n\n return ret;\n\n\n\n /**\n\n * Since the LPC coefficients are calculated on a frame centered over the\n\n * fourth subframe, to encode a given frame, data from the next frame is\n\n * needed. In each call to this function, the previous frame (whose data are\n\n * saved in the encoder context) is encoded, and data from the current frame\n\n * are saved in the encoder context to be used in the next function call.\n\n */\n\n for (i = 0; i < (2 * BLOCKSIZE + BLOCKSIZE / 2); i++) {\n\n lpc_data[i] = ractx->curr_block[BLOCKSIZE + BLOCKSIZE / 2 + i];\n\n energy += (lpc_data[i] * lpc_data[i]) >> 4;\n\n }\n\n if (frame) {\n\n int j;\n\n for (j = 0; j < frame->nb_samples && i < NBLOCKS * BLOCKSIZE; i++, j++) {\n\n lpc_data[i] = samples[j] >> 2;\n\n energy += (lpc_data[i] * lpc_data[i]) >> 4;\n\n }\n\n }\n\n if (i < NBLOCKS * BLOCKSIZE)\n\n memset(&lpc_data[i], 0, (NBLOCKS * BLOCKSIZE - i) * sizeof(*lpc_data));\n\n energy = ff_energy_tab[quantize(ff_t_sqrt(energy >> 5) >> 10, ff_energy_tab,\n\n 32)];\n\n\n\n ff_lpc_calc_coefs(&ractx->lpc_ctx, lpc_data, NBLOCKS * BLOCKSIZE, LPC_ORDER,\n\n LPC_ORDER, 16, lpc_coefs, shift, FF_LPC_TYPE_LEVINSON,\n\n 0, ORDER_METHOD_EST, 12, 0);\n\n for (i = 0; i < LPC_ORDER; i++)\n\n block_coefs[NBLOCKS - 1][i] = -(lpc_coefs[LPC_ORDER - 1][i] <<\n\n (12 - shift[LPC_ORDER - 1]));\n\n\n\n /**\n\n * TODO: apply perceptual weighting of the input speech through bandwidth\n\n * expansion of the LPC filter.\n\n */\n\n\n\n if (ff_eval_refl(lpc_refl, block_coefs[NBLOCKS - 1], avctx)) {\n\n /**\n\n * The filter is unstable: use the coefficients of the previous frame.\n\n */\n\n ff_int_to_int16(block_coefs[NBLOCKS - 1], ractx->lpc_coef[1]);\n\n if (ff_eval_refl(lpc_refl, block_coefs[NBLOCKS - 1], avctx)) {\n\n /* the filter is still unstable. set reflection coeffs to zero. */\n\n memset(lpc_refl, 0, sizeof(lpc_refl));\n\n }\n\n }\n\n init_put_bits(&pb, avpkt->data, avpkt->size);\n\n for (i = 0; i < LPC_ORDER; i++) {\n\n idx = quantize(lpc_refl[i], ff_lpc_refl_cb[i], sizes[i]);\n\n put_bits(&pb, bit_sizes[i], idx);\n\n lpc_refl[i] = ff_lpc_refl_cb[i][idx];\n\n }\n\n ractx->lpc_refl_rms[0] = ff_rms(lpc_refl);\n\n ff_eval_coefs(ractx->lpc_coef[0], lpc_refl);\n\n refl_rms[0] = ff_interp(ractx, block_coefs[0], 1, 1, ractx->old_energy);\n\n refl_rms[1] = ff_interp(ractx, block_coefs[1], 2,\n\n energy <= ractx->old_energy,\n\n ff_t_sqrt(energy * ractx->old_energy) >> 12);\n\n refl_rms[2] = ff_interp(ractx, block_coefs[2], 3, 0, energy);\n\n refl_rms[3] = ff_rescale_rms(ractx->lpc_refl_rms[0], energy);\n\n ff_int_to_int16(block_coefs[NBLOCKS - 1], ractx->lpc_coef[0]);\n\n put_bits(&pb, 5, quantize(energy, ff_energy_tab, 32));\n\n for (i = 0; i < NBLOCKS; i++)\n\n ra144_encode_subblock(ractx, ractx->curr_block + i * BLOCKSIZE,\n\n block_coefs[i], refl_rms[i], &pb);\n\n flush_put_bits(&pb);\n\n ractx->old_energy = energy;\n\n ractx->lpc_refl_rms[1] = ractx->lpc_refl_rms[0];\n\n FFSWAP(unsigned int *, ractx->lpc_coef[0], ractx->lpc_coef[1]);\n\n\n\n /* copy input samples to current block for processing in next call */\n\n i = 0;\n\n if (frame) {\n\n for (; i < frame->nb_samples; i++)\n\n ractx->curr_block[i] = samples[i] >> 2;\n\n\n\n if ((ret = ff_af_queue_add(&ractx->afq, frame)) < 0)\n\n return ret;\n\n } else\n\n ractx->last_frame = 1;\n\n memset(&ractx->curr_block[i], 0,\n\n (NBLOCKS * BLOCKSIZE - i) * sizeof(*ractx->curr_block));\n\n\n\n /* Get the next frame pts/duration */\n\n ff_af_queue_remove(&ractx->afq, avctx->frame_size, &avpkt->pts,\n\n &avpkt->duration);\n\n\n\n avpkt->size = FRAMESIZE;\n\n *got_packet_ptr = 1;\n\n return 0;\n\n}\n", + "output": "0", + "index": 6586 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int ff_h264_decode_picture_parameter_set(H264Context *h, int bit_length){\n\n MpegEncContext * const s = &h->s;\n\n unsigned int pps_id= get_ue_golomb(&s->gb);\n\n PPS *pps;\n\n const int qp_bd_offset = 6*(h->sps.bit_depth_luma-8);\n\n int bits_left;\n\n\n\n if(pps_id >= MAX_PPS_COUNT) {\n\n av_log(h->s.avctx, AV_LOG_ERROR, \"pps_id (%d) out of range\\n\", pps_id);\n\n return -1;\n\n }\n\n\n\n pps= av_mallocz(sizeof(PPS));\n\n if(pps == NULL)\n\n return -1;\n\n pps->sps_id= get_ue_golomb_31(&s->gb);\n\n if((unsigned)pps->sps_id>=MAX_SPS_COUNT || h->sps_buffers[pps->sps_id] == NULL){\n\n av_log(h->s.avctx, AV_LOG_ERROR, \"sps_id out of range\\n\");\n\n goto fail;\n\n }\n\n\n\n pps->cabac= get_bits1(&s->gb);\n\n pps->pic_order_present= get_bits1(&s->gb);\n\n pps->slice_group_count= get_ue_golomb(&s->gb) + 1;\n\n if(pps->slice_group_count > 1 ){\n\n pps->mb_slice_group_map_type= get_ue_golomb(&s->gb);\n\n av_log(h->s.avctx, AV_LOG_ERROR, \"FMO not supported\\n\");\n\n switch(pps->mb_slice_group_map_type){\n\n case 0:\n\n#if 0\n\n| for( i = 0; i <= num_slice_groups_minus1; i++ ) | | |\n\n| run_length[ i ] |1 |ue(v) |\n\n#endif\n\n break;\n\n case 2:\n\n#if 0\n\n| for( i = 0; i < num_slice_groups_minus1; i++ ) | | |\n\n|{ | | |\n\n| top_left_mb[ i ] |1 |ue(v) |\n\n| bottom_right_mb[ i ] |1 |ue(v) |\n\n| } | | |\n\n#endif\n\n break;\n\n case 3:\n\n case 4:\n\n case 5:\n\n#if 0\n\n| slice_group_change_direction_flag |1 |u(1) |\n\n| slice_group_change_rate_minus1 |1 |ue(v) |\n\n#endif\n\n break;\n\n case 6:\n\n#if 0\n\n| slice_group_id_cnt_minus1 |1 |ue(v) |\n\n| for( i = 0; i <= slice_group_id_cnt_minus1; i++ | | |\n\n|) | | |\n\n| slice_group_id[ i ] |1 |u(v) |\n\n#endif\n\n break;\n\n }\n\n }\n\n pps->ref_count[0]= get_ue_golomb(&s->gb) + 1;\n\n pps->ref_count[1]= get_ue_golomb(&s->gb) + 1;\n\n if(pps->ref_count[0]-1 > 32-1 || pps->ref_count[1]-1 > 32-1){\n\n av_log(h->s.avctx, AV_LOG_ERROR, \"reference overflow (pps)\\n\");\n\n goto fail;\n\n }\n\n\n\n pps->weighted_pred= get_bits1(&s->gb);\n\n pps->weighted_bipred_idc= get_bits(&s->gb, 2);\n\n pps->init_qp= get_se_golomb(&s->gb) + 26 + qp_bd_offset;\n\n pps->init_qs= get_se_golomb(&s->gb) + 26 + qp_bd_offset;\n\n pps->chroma_qp_index_offset[0]= get_se_golomb(&s->gb);\n\n pps->deblocking_filter_parameters_present= get_bits1(&s->gb);\n\n pps->constrained_intra_pred= get_bits1(&s->gb);\n\n pps->redundant_pic_cnt_present = get_bits1(&s->gb);\n\n\n\n pps->transform_8x8_mode= 0;\n\n h->dequant_coeff_pps= -1; //contents of sps/pps can change even if id doesn't, so reinit\n\n memcpy(pps->scaling_matrix4, h->sps_buffers[pps->sps_id]->scaling_matrix4, sizeof(pps->scaling_matrix4));\n\n memcpy(pps->scaling_matrix8, h->sps_buffers[pps->sps_id]->scaling_matrix8, sizeof(pps->scaling_matrix8));\n\n\n\n bits_left = bit_length - get_bits_count(&s->gb);\n\n if(bits_left > 0){\n\n pps->transform_8x8_mode= get_bits1(&s->gb);\n\n decode_scaling_matrices(h, h->sps_buffers[pps->sps_id], pps, 0, pps->scaling_matrix4, pps->scaling_matrix8);\n\n pps->chroma_qp_index_offset[1]= get_se_golomb(&s->gb); //second_chroma_qp_index_offset\n\n } else {\n\n pps->chroma_qp_index_offset[1]= pps->chroma_qp_index_offset[0];\n\n }\n\n\n\n build_qp_table(pps, 0, pps->chroma_qp_index_offset[0], h->sps.bit_depth_luma);\n\n build_qp_table(pps, 1, pps->chroma_qp_index_offset[1], h->sps.bit_depth_luma);\n\n if(pps->chroma_qp_index_offset[0] != pps->chroma_qp_index_offset[1])\n\n pps->chroma_qp_diff= 1;\n\n\n\n if(s->avctx->debug&FF_DEBUG_PICT_INFO){\n\n av_log(h->s.avctx, AV_LOG_DEBUG, \"pps:%u sps:%u %s slice_groups:%d ref:%d/%d %s qp:%d/%d/%d/%d %s %s %s %s\\n\",\n\n pps_id, pps->sps_id,\n\n pps->cabac ? \"CABAC\" : \"CAVLC\",\n\n pps->slice_group_count,\n\n pps->ref_count[0], pps->ref_count[1],\n\n pps->weighted_pred ? \"weighted\" : \"\",\n\n pps->init_qp, pps->init_qs, pps->chroma_qp_index_offset[0], pps->chroma_qp_index_offset[1],\n\n pps->deblocking_filter_parameters_present ? \"LPAR\" : \"\",\n\n pps->constrained_intra_pred ? \"CONSTR\" : \"\",\n\n pps->redundant_pic_cnt_present ? \"REDU\" : \"\",\n\n pps->transform_8x8_mode ? \"8x8DCT\" : \"\"\n\n );\n\n }\n\n\n\n av_free(h->pps_buffers[pps_id]);\n\n h->pps_buffers[pps_id]= pps;\n\n return 0;\n\nfail:\n\n av_free(pps);\n\n return -1;\n\n}\n", + "output": "0", + "index": 195 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void check_loopfilter()\n\n{\n\n LOCAL_ALIGNED_32(uint8_t, base0, [32 + 16 * 16 * 2]);\n\n LOCAL_ALIGNED_32(uint8_t, base1, [32 + 16 * 16 * 2]);\n\n VP9DSPContext dsp;\n\n int dir, wd, wd2, bit_depth;\n\n static const char *const dir_name[2] = { \"h\", \"v\" };\n\n int E[2] = { 20, 28 }, I[2] = { 10, 16 }, H[2] = { 7, 11 }, F[2] = { 1, 1 };\n\n declare_func(void, uint8_t *dst, ptrdiff_t stride, int E, int I, int H);\n\n\n\n for (bit_depth = 8; bit_depth <= 12; bit_depth += 2) {\n\n ff_vp9dsp_init(&dsp, bit_depth, 0);\n\n\n\n for (dir = 0; dir < 2; dir++) {\n\n uint8_t *buf0, *buf1;\n\n int midoff = (dir ? 8 * 8 : 8) * SIZEOF_PIXEL;\n\n int midoff_aligned = (dir ? 8 * 8 : 16) * SIZEOF_PIXEL;\n\n\n\n buf0 = base0 + midoff_aligned;\n\n buf1 = base1 + midoff_aligned;\n\n\n\n for (wd = 0; wd < 3; wd++) {\n\n // 4/8/16wd_8px\n\n if (check_func(dsp.loop_filter_8[wd][dir],\n\n \"vp9_loop_filter_%s_%d_8_%dbpp\",\n\n dir_name[dir], 4 << wd, bit_depth)) {\n\n randomize_buffers(0, 0, 8);\n\n memcpy(buf1 - midoff, buf0 - midoff,\n\n 16 * 8 * SIZEOF_PIXEL);\n\n call_ref(buf0, 16 * SIZEOF_PIXEL >> dir, E[0], I[0], H[0]);\n\n call_new(buf1, 16 * SIZEOF_PIXEL >> dir, E[0], I[0], H[0]);\n\n if (memcmp(buf0 - midoff, buf1 - midoff, 16 * 8 * SIZEOF_PIXEL))\n\n fail();\n\n bench_new(buf1, 16 * SIZEOF_PIXEL >> dir, E[0], I[0], H[0]);\n\n }\n\n }\n\n\n\n midoff = (dir ? 16 * 8 : 8) * SIZEOF_PIXEL;\n\n midoff_aligned = (dir ? 16 * 8 : 16) * SIZEOF_PIXEL;\n\n\n\n // 16wd_16px loopfilter\n\n if (check_func(dsp.loop_filter_16[dir],\n\n \"vp9_loop_filter_%s_16_16_%dbpp\",\n\n dir_name[dir], bit_depth)) {\n\n randomize_buffers(0, 0, 16);\n\n randomize_buffers(0, 8, 16);\n\n memcpy(buf1 - midoff, buf0 - midoff, 16 * 16 * SIZEOF_PIXEL);\n\n call_ref(buf0, 16 * SIZEOF_PIXEL, E[0], I[0], H[0]);\n\n call_new(buf1, 16 * SIZEOF_PIXEL, E[0], I[0], H[0]);\n\n if (memcmp(buf0 - midoff, buf1 - midoff, 16 * 16 * SIZEOF_PIXEL))\n\n fail();\n\n bench_new(buf1, 16 * SIZEOF_PIXEL, E[0], I[0], H[0]);\n\n }\n\n\n\n for (wd = 0; wd < 2; wd++) {\n\n for (wd2 = 0; wd2 < 2; wd2++) {\n\n // mix2 loopfilter\n\n if (check_func(dsp.loop_filter_mix2[wd][wd2][dir],\n\n \"vp9_loop_filter_mix2_%s_%d%d_16_%dbpp\",\n\n dir_name[dir], 4 << wd, 4 << wd2, bit_depth)) {\n\n randomize_buffers(0, 0, 16);\n\n randomize_buffers(1, 8, 16);\n\n memcpy(buf1 - midoff, buf0 - midoff, 16 * 16 * SIZEOF_PIXEL);\n\n#define M(a) ((a[1] << 8) | a[0])\n\n call_ref(buf0, 16 * SIZEOF_PIXEL, M(E), M(I), M(H));\n\n call_new(buf1, 16 * SIZEOF_PIXEL, M(E), M(I), M(H));\n\n if (memcmp(buf0 - midoff, buf1 - midoff, 16 * 16 * SIZEOF_PIXEL))\n\n fail();\n\n bench_new(buf1, 16 * SIZEOF_PIXEL, M(E), M(I), M(H));\n\n#undef M\n\n }\n\n }\n\n }\n\n }\n\n }\n\n report(\"loopfilter\");\n\n}\n", + "output": "0", + "index": 17183 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int ff_vp56_decode_frame(AVCodecContext *avctx, void *data, int *data_size,\n\n AVPacket *avpkt)\n\n{\n\n const uint8_t *buf = avpkt->data;\n\n VP56Context *s = avctx->priv_data;\n\n AVFrame *const p = s->framep[VP56_FRAME_CURRENT];\n\n int remaining_buf_size = avpkt->size;\n\n int is_alpha, av_uninit(alpha_offset);\n\n\n\n if (s->has_alpha) {\n\n if (remaining_buf_size < 3)\n\n return -1;\n\n alpha_offset = bytestream_get_be24(&buf);\n\n remaining_buf_size -= 3;\n\n if (remaining_buf_size < alpha_offset)\n\n return -1;\n\n }\n\n\n\n for (is_alpha=0; is_alpha < 1+s->has_alpha; is_alpha++) {\n\n int mb_row, mb_col, mb_row_flip, mb_offset = 0;\n\n int block, y, uv, stride_y, stride_uv;\n\n int golden_frame = 0;\n\n int res;\n\n\n\n s->modelp = &s->models[is_alpha];\n\n\n\n res = s->parse_header(s, buf, remaining_buf_size, &golden_frame);\n\n if (!res)\n\n return -1;\n\n\n\n if (res == 2) {\n\n int i;\n\n for (i = 0; i < 4; i++) {\n\n if (s->frames[i].data[0])\n\n avctx->release_buffer(avctx, &s->frames[i]);\n\n }\n\n if (is_alpha)\n\n return -1;\n\n }\n\n\n\n if (!is_alpha) {\n\n p->reference = 1;\n\n if (avctx->get_buffer(avctx, p) < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"get_buffer() failed\\n\");\n\n return -1;\n\n }\n\n\n\n if (res == 2)\n\n if (vp56_size_changed(avctx)) {\n\n avctx->release_buffer(avctx, p);\n\n return -1;\n\n }\n\n }\n\n\n\n if (p->key_frame) {\n\n p->pict_type = AV_PICTURE_TYPE_I;\n\n s->default_models_init(s);\n\n for (block=0; blockmb_height*s->mb_width; block++)\n\n s->macroblocks[block].type = VP56_MB_INTRA;\n\n } else {\n\n p->pict_type = AV_PICTURE_TYPE_P;\n\n vp56_parse_mb_type_models(s);\n\n s->parse_vector_models(s);\n\n s->mb_type = VP56_MB_INTER_NOVEC_PF;\n\n }\n\n\n\n s->parse_coeff_models(s);\n\n\n\n memset(s->prev_dc, 0, sizeof(s->prev_dc));\n\n s->prev_dc[1][VP56_FRAME_CURRENT] = 128;\n\n s->prev_dc[2][VP56_FRAME_CURRENT] = 128;\n\n\n\n for (block=0; block < 4*s->mb_width+6; block++) {\n\n s->above_blocks[block].ref_frame = VP56_FRAME_NONE;\n\n s->above_blocks[block].dc_coeff = 0;\n\n s->above_blocks[block].not_null_dc = 0;\n\n }\n\n s->above_blocks[2*s->mb_width + 2].ref_frame = VP56_FRAME_CURRENT;\n\n s->above_blocks[3*s->mb_width + 4].ref_frame = VP56_FRAME_CURRENT;\n\n\n\n stride_y = p->linesize[0];\n\n stride_uv = p->linesize[1];\n\n\n\n if (s->flip < 0)\n\n mb_offset = 7;\n\n\n\n /* main macroblocks loop */\n\n for (mb_row=0; mb_rowmb_height; mb_row++) {\n\n if (s->flip < 0)\n\n mb_row_flip = s->mb_height - mb_row - 1;\n\n else\n\n mb_row_flip = mb_row;\n\n\n\n for (block=0; block<4; block++) {\n\n s->left_block[block].ref_frame = VP56_FRAME_NONE;\n\n s->left_block[block].dc_coeff = 0;\n\n s->left_block[block].not_null_dc = 0;\n\n }\n\n memset(s->coeff_ctx, 0, sizeof(s->coeff_ctx));\n\n memset(s->coeff_ctx_last, 24, sizeof(s->coeff_ctx_last));\n\n\n\n s->above_block_idx[0] = 1;\n\n s->above_block_idx[1] = 2;\n\n s->above_block_idx[2] = 1;\n\n s->above_block_idx[3] = 2;\n\n s->above_block_idx[4] = 2*s->mb_width + 2 + 1;\n\n s->above_block_idx[5] = 3*s->mb_width + 4 + 1;\n\n\n\n s->block_offset[s->frbi] = (mb_row_flip*16 + mb_offset) * stride_y;\n\n s->block_offset[s->srbi] = s->block_offset[s->frbi] + 8*stride_y;\n\n s->block_offset[1] = s->block_offset[0] + 8;\n\n s->block_offset[3] = s->block_offset[2] + 8;\n\n s->block_offset[4] = (mb_row_flip*8 + mb_offset) * stride_uv;\n\n s->block_offset[5] = s->block_offset[4];\n\n\n\n for (mb_col=0; mb_colmb_width; mb_col++) {\n\n vp56_decode_mb(s, mb_row, mb_col, is_alpha);\n\n\n\n for (y=0; y<4; y++) {\n\n s->above_block_idx[y] += 2;\n\n s->block_offset[y] += 16;\n\n }\n\n\n\n for (uv=4; uv<6; uv++) {\n\n s->above_block_idx[uv] += 1;\n\n s->block_offset[uv] += 8;\n\n }\n\n }\n\n }\n\n\n\n if (p->key_frame || golden_frame) {\n\n if (s->framep[VP56_FRAME_GOLDEN]->data[0] &&\n\n s->framep[VP56_FRAME_GOLDEN] != s->framep[VP56_FRAME_GOLDEN2])\n\n avctx->release_buffer(avctx, s->framep[VP56_FRAME_GOLDEN]);\n\n s->framep[VP56_FRAME_GOLDEN] = p;\n\n }\n\n\n\n if (s->has_alpha) {\n\n FFSWAP(AVFrame *, s->framep[VP56_FRAME_GOLDEN],\n\n s->framep[VP56_FRAME_GOLDEN2]);\n\n buf += alpha_offset;\n\n remaining_buf_size -= alpha_offset;\n\n }\n\n }\n\n\n\n if (s->framep[VP56_FRAME_PREVIOUS] == s->framep[VP56_FRAME_GOLDEN] ||\n\n s->framep[VP56_FRAME_PREVIOUS] == s->framep[VP56_FRAME_GOLDEN2]) {\n\n if (s->framep[VP56_FRAME_UNUSED] != s->framep[VP56_FRAME_GOLDEN] &&\n\n s->framep[VP56_FRAME_UNUSED] != s->framep[VP56_FRAME_GOLDEN2])\n\n FFSWAP(AVFrame *, s->framep[VP56_FRAME_PREVIOUS],\n\n s->framep[VP56_FRAME_UNUSED]);\n\n else\n\n FFSWAP(AVFrame *, s->framep[VP56_FRAME_PREVIOUS],\n\n s->framep[VP56_FRAME_UNUSED2]);\n\n } else if (s->framep[VP56_FRAME_PREVIOUS]->data[0])\n\n avctx->release_buffer(avctx, s->framep[VP56_FRAME_PREVIOUS]);\n\n FFSWAP(AVFrame *, s->framep[VP56_FRAME_CURRENT],\n\n s->framep[VP56_FRAME_PREVIOUS]);\n\n\n\n p->qstride = 0;\n\n p->qscale_table = s->qscale_table;\n\n p->qscale_type = FF_QSCALE_TYPE_VP56;\n\n *(AVFrame*)data = *p;\n\n *data_size = sizeof(AVFrame);\n\n\n\n return avpkt->size;\n\n}\n", + "output": "0", + "index": 23906 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int rv10_decode_packet(AVCodecContext *avctx, const uint8_t *buf,\n\n int buf_size, int buf_size2)\n\n{\n\n RVDecContext *rv = avctx->priv_data;\n\n MpegEncContext *s = &rv->m;\n\n int mb_count, mb_pos, left, start_mb_x, active_bits_size, ret;\n\n\n\n active_bits_size = buf_size * 8;\n\n init_get_bits(&s->gb, buf, FFMAX(buf_size, buf_size2) * 8);\n\n if (s->codec_id == AV_CODEC_ID_RV10)\n\n mb_count = rv10_decode_picture_header(s);\n\n else\n\n mb_count = rv20_decode_picture_header(rv);\n\n if (mb_count < 0) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"HEADER ERROR\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n if (s->mb_x >= s->mb_width ||\n\n s->mb_y >= s->mb_height) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"POS ERROR %d %d\\n\", s->mb_x, s->mb_y);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n mb_pos = s->mb_y * s->mb_width + s->mb_x;\n\n left = s->mb_width * s->mb_height - mb_pos;\n\n if (mb_count > left) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"COUNT ERROR\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n if ((s->mb_x == 0 && s->mb_y == 0) || s->current_picture_ptr == NULL) {\n\n // FIXME write parser so we always have complete frames?\n\n if (s->current_picture_ptr) {\n\n ff_er_frame_end(&s->er);\n\n ff_mpv_frame_end(s);\n\n s->mb_x = s->mb_y = s->resync_mb_x = s->resync_mb_y = 0;\n\n }\n\n if ((ret = ff_mpv_frame_start(s, avctx)) < 0)\n\n return ret;\n\n ff_mpeg_er_frame_start(s);\n\n } else {\n\n if (s->current_picture_ptr->f->pict_type != s->pict_type) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"Slice type mismatch\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n }\n\n\n\n av_dlog(avctx, \"qscale=%d\\n\", s->qscale);\n\n\n\n /* default quantization values */\n\n if (s->codec_id == AV_CODEC_ID_RV10) {\n\n if (s->mb_y == 0)\n\n s->first_slice_line = 1;\n\n } else {\n\n s->first_slice_line = 1;\n\n s->resync_mb_x = s->mb_x;\n\n }\n\n start_mb_x = s->mb_x;\n\n s->resync_mb_y = s->mb_y;\n\n if (s->h263_aic) {\n\n s->y_dc_scale_table =\n\n s->c_dc_scale_table = ff_aic_dc_scale_table;\n\n } else {\n\n s->y_dc_scale_table =\n\n s->c_dc_scale_table = ff_mpeg1_dc_scale_table;\n\n }\n\n\n\n if (s->modified_quant)\n\n s->chroma_qscale_table = ff_h263_chroma_qscale_table;\n\n\n\n ff_set_qscale(s, s->qscale);\n\n\n\n s->rv10_first_dc_coded[0] = 0;\n\n s->rv10_first_dc_coded[1] = 0;\n\n s->rv10_first_dc_coded[2] = 0;\n\n s->block_wrap[0] =\n\n s->block_wrap[1] =\n\n s->block_wrap[2] =\n\n s->block_wrap[3] = s->b8_stride;\n\n s->block_wrap[4] =\n\n s->block_wrap[5] = s->mb_stride;\n\n ff_init_block_index(s);\n\n\n\n /* decode each macroblock */\n\n for (s->mb_num_left = mb_count; s->mb_num_left > 0; s->mb_num_left--) {\n\n int ret;\n\n ff_update_block_index(s);\n\n av_dlog(avctx, \"**mb x=%d y=%d\\n\", s->mb_x, s->mb_y);\n\n\n\n s->mv_dir = MV_DIR_FORWARD;\n\n s->mv_type = MV_TYPE_16X16;\n\n ret = ff_h263_decode_mb(s, s->block);\n\n\n\n // Repeat the slice end check from ff_h263_decode_mb with our active\n\n // bitstream size\n\n if (ret != SLICE_ERROR) {\n\n int v = show_bits(&s->gb, 16);\n\n\n\n if (get_bits_count(&s->gb) + 16 > active_bits_size)\n\n v >>= get_bits_count(&s->gb) + 16 - active_bits_size;\n\n\n\n if (!v)\n\n ret = SLICE_END;\n\n }\n\n if (ret != SLICE_ERROR && active_bits_size < get_bits_count(&s->gb) &&\n\n 8 * buf_size2 >= get_bits_count(&s->gb)) {\n\n active_bits_size = buf_size2 * 8;\n\n av_log(avctx, AV_LOG_DEBUG, \"update size from %d to %d\\n\",\n\n 8 * buf_size, active_bits_size);\n\n ret = SLICE_OK;\n\n }\n\n\n\n if (ret == SLICE_ERROR || active_bits_size < get_bits_count(&s->gb)) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"ERROR at MB %d %d\\n\", s->mb_x,\n\n s->mb_y);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n if (s->pict_type != AV_PICTURE_TYPE_B)\n\n ff_h263_update_motion_val(s);\n\n ff_mpv_decode_mb(s, s->block);\n\n if (s->loop_filter)\n\n ff_h263_loop_filter(s);\n\n\n\n if (++s->mb_x == s->mb_width) {\n\n s->mb_x = 0;\n\n s->mb_y++;\n\n ff_init_block_index(s);\n\n }\n\n if (s->mb_x == s->resync_mb_x)\n\n s->first_slice_line = 0;\n\n if (ret == SLICE_END)\n\n break;\n\n }\n\n\n\n ff_er_add_slice(&s->er, start_mb_x, s->resync_mb_y, s->mb_x - 1, s->mb_y,\n\n ER_MB_END);\n\n\n\n return active_bits_size;\n\n}\n", + "output": "0", + "index": 16185 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "void pc_basic_device_init(ISABus *isa_bus, qemu_irq *gsi,\n\n ISADevice **rtc_state,\n\n bool create_fdctrl,\n\n bool no_vmport,\n\n uint32 hpet_irqs)\n\n{\n\n int i;\n\n DriveInfo *fd[MAX_FD];\n\n DeviceState *hpet = NULL;\n\n int pit_isa_irq = 0;\n\n qemu_irq pit_alt_irq = NULL;\n\n qemu_irq rtc_irq = NULL;\n\n qemu_irq *a20_line;\n\n ISADevice *i8042, *port92, *vmmouse, *pit = NULL;\n\n qemu_irq *cpu_exit_irq;\n\n MemoryRegion *ioport80_io = g_new(MemoryRegion, 1);\n\n MemoryRegion *ioportF0_io = g_new(MemoryRegion, 1);\n\n\n\n memory_region_init_io(ioport80_io, NULL, &ioport80_io_ops, NULL, \"ioport80\", 1);\n\n memory_region_add_subregion(isa_bus->address_space_io, 0x80, ioport80_io);\n\n\n\n memory_region_init_io(ioportF0_io, NULL, &ioportF0_io_ops, NULL, \"ioportF0\", 1);\n\n memory_region_add_subregion(isa_bus->address_space_io, 0xf0, ioportF0_io);\n\n\n\n /*\n\n * Check if an HPET shall be created.\n\n *\n\n * Without KVM_CAP_PIT_STATE2, we cannot switch off the in-kernel PIT\n\n * when the HPET wants to take over. Thus we have to disable the latter.\n\n */\n\n if (!no_hpet && (!kvm_irqchip_in_kernel() || kvm_has_pit_state2())) {\n\n /* In order to set property, here not using sysbus_try_create_simple */\n\n hpet = qdev_try_create(NULL, TYPE_HPET);\n\n if (hpet) {\n\n /* For pc-piix-*, hpet's intcap is always IRQ2. For pc-q35-1.7\n\n * and earlier, use IRQ2 for compat. Otherwise, use IRQ16~23,\n\n * IRQ8 and IRQ2.\n\n */\n\n uint8_t compat = object_property_get_int(OBJECT(hpet),\n\n HPET_INTCAP, NULL);\n\n if (!compat) {\n\n qdev_prop_set_uint32(hpet, HPET_INTCAP, hpet_irqs);\n\n }\n\n qdev_init_nofail(hpet);\n\n sysbus_mmio_map(SYS_BUS_DEVICE(hpet), 0, HPET_BASE);\n\n\n\n for (i = 0; i < GSI_NUM_PINS; i++) {\n\n sysbus_connect_irq(SYS_BUS_DEVICE(hpet), i, gsi[i]);\n\n }\n\n pit_isa_irq = -1;\n\n pit_alt_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_PIT_INT);\n\n rtc_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_RTC_INT);\n\n }\n\n }\n\n *rtc_state = rtc_init(isa_bus, 2000, rtc_irq);\n\n\n\n qemu_register_boot_set(pc_boot_set, *rtc_state);\n\n\n\n if (!xen_enabled()) {\n\n if (kvm_irqchip_in_kernel()) {\n\n pit = kvm_pit_init(isa_bus, 0x40);\n\n } else {\n\n pit = pit_init(isa_bus, 0x40, pit_isa_irq, pit_alt_irq);\n\n }\n\n if (hpet) {\n\n /* connect PIT to output control line of the HPET */\n\n qdev_connect_gpio_out(hpet, 0, qdev_get_gpio_in(DEVICE(pit), 0));\n\n }\n\n pcspk_init(isa_bus, pit);\n\n }\n\n\n\n serial_hds_isa_init(isa_bus, MAX_SERIAL_PORTS);\n\n parallel_hds_isa_init(isa_bus, MAX_PARALLEL_PORTS);\n\n\n\n a20_line = qemu_allocate_irqs(handle_a20_line_change, first_cpu, 2);\n\n i8042 = isa_create_simple(isa_bus, \"i8042\");\n\n i8042_setup_a20_line(i8042, &a20_line[0]);\n\n if (!no_vmport) {\n\n vmport_init(isa_bus);\n\n vmmouse = isa_try_create(isa_bus, \"vmmouse\");\n\n } else {\n\n vmmouse = NULL;\n\n }\n\n if (vmmouse) {\n\n DeviceState *dev = DEVICE(vmmouse);\n\n qdev_prop_set_ptr(dev, \"ps2_mouse\", i8042);\n\n qdev_init_nofail(dev);\n\n }\n\n port92 = isa_create_simple(isa_bus, \"port92\");\n\n port92_init(port92, &a20_line[1]);\n\n\n\n cpu_exit_irq = qemu_allocate_irqs(cpu_request_exit, NULL, 1);\n\n DMA_init(0, cpu_exit_irq);\n\n\n\n for(i = 0; i < MAX_FD; i++) {\n\n fd[i] = drive_get(IF_FLOPPY, 0, i);\n\n create_fdctrl |= !!fd[i];\n\n }\n\n if (create_fdctrl) {\n\n fdctrl_init_isa(isa_bus, fd);\n\n }\n\n}\n", + "output": "0", + "index": 24321 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static uint64_t omap_eac_read(void *opaque, target_phys_addr_t addr,\n\n unsigned size)\n\n{\n\n struct omap_eac_s *s = (struct omap_eac_s *) opaque;\n\n uint32_t ret;\n\n\n\n if (size != 2) {\n\n return omap_badwidth_read16(opaque, addr);\n\n }\n\n\n\n switch (addr) {\n\n case 0x000:\t/* CPCFR1 */\n\n return s->config[0];\n\n case 0x004:\t/* CPCFR2 */\n\n return s->config[1];\n\n case 0x008:\t/* CPCFR3 */\n\n return s->config[2];\n\n case 0x00c:\t/* CPCFR4 */\n\n return s->config[3];\n\n\n\n case 0x010:\t/* CPTCTL */\n\n return s->control | ((s->codec.rxavail + s->codec.rxlen > 0) << 7) |\n\n ((s->codec.txlen < s->codec.txavail) << 5);\n\n\n\n case 0x014:\t/* CPTTADR */\n\n return s->address;\n\n case 0x018:\t/* CPTDATL */\n\n return s->data & 0xff;\n\n case 0x01c:\t/* CPTDATH */\n\n return s->data >> 8;\n\n case 0x020:\t/* CPTVSLL */\n\n return s->vtol;\n\n case 0x024:\t/* CPTVSLH */\n\n return s->vtsl | (3 << 5);\t/* CRDY1 | CRDY2 */\n\n case 0x040:\t/* MPCTR */\n\n return s->modem.control;\n\n case 0x044:\t/* MPMCCFR */\n\n return s->modem.config;\n\n case 0x060:\t/* BPCTR */\n\n return s->bt.control;\n\n case 0x064:\t/* BPMCCFR */\n\n return s->bt.config;\n\n case 0x080:\t/* AMSCFR */\n\n return s->mixer;\n\n case 0x084:\t/* AMVCTR */\n\n return s->gain[0];\n\n case 0x088:\t/* AM1VCTR */\n\n return s->gain[1];\n\n case 0x08c:\t/* AM2VCTR */\n\n return s->gain[2];\n\n case 0x090:\t/* AM3VCTR */\n\n return s->gain[3];\n\n case 0x094:\t/* ASTCTR */\n\n return s->att;\n\n case 0x098:\t/* APD1LCR */\n\n return s->max[0];\n\n case 0x09c:\t/* APD1RCR */\n\n return s->max[1];\n\n case 0x0a0:\t/* APD2LCR */\n\n return s->max[2];\n\n case 0x0a4:\t/* APD2RCR */\n\n return s->max[3];\n\n case 0x0a8:\t/* APD3LCR */\n\n return s->max[4];\n\n case 0x0ac:\t/* APD3RCR */\n\n return s->max[5];\n\n case 0x0b0:\t/* APD4R */\n\n return s->max[6];\n\n case 0x0b4:\t/* ADWR */\n\n /* This should be write-only? Docs list it as read-only. */\n\n return 0x0000;\n\n case 0x0b8:\t/* ADRDR */\n\n if (likely(s->codec.rxlen > 1)) {\n\n ret = s->codec.rxbuf[s->codec.rxoff ++];\n\n s->codec.rxlen --;\n\n s->codec.rxoff &= EAC_BUF_LEN - 1;\n\n return ret;\n\n } else if (s->codec.rxlen) {\n\n ret = s->codec.rxbuf[s->codec.rxoff ++];\n\n s->codec.rxlen --;\n\n s->codec.rxoff &= EAC_BUF_LEN - 1;\n\n if (s->codec.rxavail)\n\n omap_eac_in_refill(s);\n\n omap_eac_in_dmarequest_update(s);\n\n return ret;\n\n }\n\n return 0x0000;\n\n case 0x0bc:\t/* AGCFR */\n\n return s->codec.config[0];\n\n case 0x0c0:\t/* AGCTR */\n\n return s->codec.config[1] | ((s->codec.config[1] & 2) << 14);\n\n case 0x0c4:\t/* AGCFR2 */\n\n return s->codec.config[2];\n\n case 0x0c8:\t/* AGCFR3 */\n\n return s->codec.config[3];\n\n case 0x0cc:\t/* MBPDMACTR */\n\n case 0x0d0:\t/* MPDDMARR */\n\n case 0x0d8:\t/* MPUDMARR */\n\n case 0x0e4:\t/* BPDDMARR */\n\n case 0x0ec:\t/* BPUDMARR */\n\n return 0x0000;\n\n\n\n case 0x100:\t/* VERSION_NUMBER */\n\n return 0x0010;\n\n\n\n case 0x104:\t/* SYSCONFIG */\n\n return s->sysconfig;\n\n\n\n case 0x108:\t/* SYSSTATUS */\n\n return 1 | 0xe;\t\t\t\t\t/* RESETDONE | stuff */\n\n }\n\n\n\n OMAP_BAD_REG(addr);\n\n return 0;\n\n}\n", + "output": "0", + "index": 5057 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int build_filter(ResampleContext *c, void *filter, double factor, int tap_count, int alloc, int phase_count, int scale,\n\n int filter_type, double kaiser_beta){\n\n int ph, i;\n\n double x, y, w, t;\n\n double *tab = av_malloc_array(tap_count+1, sizeof(*tab));\n\n const int center= (tap_count-1)/2;\n\n\n\n if (!tab)\n\n return AVERROR(ENOMEM);\n\n\n\n /* if upsampling, only need to interpolate, no filter */\n\n if (factor > 1.0)\n\n factor = 1.0;\n\n\n\n av_assert0(phase_count == 1 || phase_count % 2 == 0);\n\n for(ph = 0; ph <= phase_count / 2; ph++) {\n\n double norm = 0;\n\n for(i=0;i<=tap_count;i++) {\n\n x = M_PI * ((double)(i - center) - (double)ph / phase_count) * factor;\n\n if (x == 0) y = 1.0;\n\n else y = sin(x) / x;\n\n switch(filter_type){\n\n case SWR_FILTER_TYPE_CUBIC:{\n\n const float d= -0.5; //first order derivative = -0.5\n\n x = fabs(((double)(i - center) - (double)ph / phase_count) * factor);\n\n if(x<1.0) y= 1 - 3*x*x + 2*x*x*x + d*( -x*x + x*x*x);\n\n else y= d*(-4 + 8*x - 5*x*x + x*x*x);\n\n break;}\n\n case SWR_FILTER_TYPE_BLACKMAN_NUTTALL:\n\n w = 2.0*x / (factor*tap_count) + M_PI;\n\n t = cos(w);\n\n y *= 0.3635819 - 0.4891775 * t + 0.1365995 * (2*t*t-1) - 0.0106411 * (4*t*t*t - 3*t);\n\n break;\n\n case SWR_FILTER_TYPE_KAISER:\n\n w = 2.0*x / (factor*tap_count*M_PI);\n\n y *= bessel(kaiser_beta*sqrt(FFMAX(1-w*w, 0)));\n\n break;\n\n default:\n\n av_assert0(0);\n\n }\n\n\n\n tab[i] = y;\n\n if (i < tap_count)\n\n norm += y;\n\n }\n\n\n\n /* normalize so that an uniform color remains the same */\n\n switch(c->format){\n\n case AV_SAMPLE_FMT_S16P:\n\n for(i=0;igop_flags = get_bits(&ctx->gb, 8);\n\n\n\n ctx->gop_hdr_size = (ctx->gop_flags & 1) ? get_bits(&ctx->gb, 16) : 0;\n\n\n\n if (ctx->gop_flags & IVI5_IS_PROTECTED)\n\n ctx->lock_word = get_bits_long(&ctx->gb, 32);\n\n\n\n tile_size = (ctx->gop_flags & 0x40) ? 64 << get_bits(&ctx->gb, 2) : 0;\n\n if (tile_size > 256) {\n\n av_log(avctx, AV_LOG_ERROR, \"Invalid tile size: %d\\n\", tile_size);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n /* decode number of wavelet bands */\n\n /* num_levels * 3 + 1 */\n\n pic_conf.luma_bands = get_bits(&ctx->gb, 2) * 3 + 1;\n\n pic_conf.chroma_bands = get_bits1(&ctx->gb) * 3 + 1;\n\n is_scalable = pic_conf.luma_bands != 1 || pic_conf.chroma_bands != 1;\n\n if (is_scalable && (pic_conf.luma_bands != 4 || pic_conf.chroma_bands != 1)) {\n\n av_log(avctx, AV_LOG_ERROR, \"Scalability: unsupported subdivision! Luma bands: %d, chroma bands: %d\\n\",\n\n pic_conf.luma_bands, pic_conf.chroma_bands);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n pic_size_indx = get_bits(&ctx->gb, 4);\n\n if (pic_size_indx == IVI5_PIC_SIZE_ESC) {\n\n pic_conf.pic_height = get_bits(&ctx->gb, 13);\n\n pic_conf.pic_width = get_bits(&ctx->gb, 13);\n\n } else {\n\n pic_conf.pic_height = ivi5_common_pic_sizes[pic_size_indx * 2 + 1] << 2;\n\n pic_conf.pic_width = ivi5_common_pic_sizes[pic_size_indx * 2 ] << 2;\n\n }\n\n\n\n if (ctx->gop_flags & 2) {\n\n avpriv_report_missing_feature(avctx, \"YV12 picture format\");\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n\n\n pic_conf.chroma_height = (pic_conf.pic_height + 3) >> 2;\n\n pic_conf.chroma_width = (pic_conf.pic_width + 3) >> 2;\n\n\n\n if (!tile_size) {\n\n pic_conf.tile_height = pic_conf.pic_height;\n\n pic_conf.tile_width = pic_conf.pic_width;\n\n } else {\n\n pic_conf.tile_height = pic_conf.tile_width = tile_size;\n\n }\n\n\n\n /* check if picture layout was changed and reallocate buffers */\n\n if (ivi_pic_config_cmp(&pic_conf, &ctx->pic_conf) || ctx->gop_invalid) {\n\n result = ff_ivi_init_planes(ctx->planes, &pic_conf, 0);\n\n if (result < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"Couldn't reallocate color planes!\\n\");\n\n return result;\n\n }\n\n ctx->pic_conf = pic_conf;\n\n ctx->is_scalable = is_scalable;\n\n blk_size_changed = 1; /* force reallocation of the internal structures */\n\n }\n\n\n\n for (p = 0; p <= 1; p++) {\n\n for (i = 0; i < (!p ? pic_conf.luma_bands : pic_conf.chroma_bands); i++) {\n\n band = &ctx->planes[p].bands[i];\n\n\n\n band->is_halfpel = get_bits1(&ctx->gb);\n\n\n\n mb_size = get_bits1(&ctx->gb);\n\n blk_size = 8 >> get_bits1(&ctx->gb);\n\n mb_size = blk_size << !mb_size;\n\n\n\n if (p==0 && blk_size==4) {\n\n av_log(avctx, AV_LOG_ERROR, \"4x4 luma blocks are unsupported!\\n\");\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n\n\n blk_size_changed = mb_size != band->mb_size || blk_size != band->blk_size;\n\n if (blk_size_changed) {\n\n band->mb_size = mb_size;\n\n band->blk_size = blk_size;\n\n }\n\n\n\n if (get_bits1(&ctx->gb)) {\n\n avpriv_report_missing_feature(avctx, \"Extended transform info\");\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n\n\n /* select transform function and scan pattern according to plane and band number */\n\n switch ((p << 2) + i) {\n\n case 0:\n\n band->inv_transform = ff_ivi_inverse_slant_8x8;\n\n band->dc_transform = ff_ivi_dc_slant_2d;\n\n band->scan = ff_zigzag_direct;\n\n band->transform_size = 8;\n\n break;\n\n\n\n case 1:\n\n band->inv_transform = ff_ivi_row_slant8;\n\n band->dc_transform = ff_ivi_dc_row_slant;\n\n band->scan = ff_ivi_vertical_scan_8x8;\n\n band->transform_size = 8;\n\n break;\n\n\n\n case 2:\n\n band->inv_transform = ff_ivi_col_slant8;\n\n band->dc_transform = ff_ivi_dc_col_slant;\n\n band->scan = ff_ivi_horizontal_scan_8x8;\n\n band->transform_size = 8;\n\n break;\n\n\n\n case 3:\n\n band->inv_transform = ff_ivi_put_pixels_8x8;\n\n band->dc_transform = ff_ivi_put_dc_pixel_8x8;\n\n band->scan = ff_ivi_horizontal_scan_8x8;\n\n band->transform_size = 8;\n\n break;\n\n\n\n case 4:\n\n band->inv_transform = ff_ivi_inverse_slant_4x4;\n\n band->dc_transform = ff_ivi_dc_slant_2d;\n\n band->scan = ff_ivi_direct_scan_4x4;\n\n band->transform_size = 4;\n\n break;\n\n }\n\n\n\n band->is_2d_trans = band->inv_transform == ff_ivi_inverse_slant_8x8 ||\n\n band->inv_transform == ff_ivi_inverse_slant_4x4;\n\n\n\n if (band->transform_size != band->blk_size) {\n\n av_log(avctx, AV_LOG_ERROR, \"transform and block size mismatch (%d != %d)\\n\", band->transform_size, band->blk_size);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n /* select dequant matrix according to plane and band number */\n\n if (!p) {\n\n quant_mat = (pic_conf.luma_bands > 1) ? i+1 : 0;\n\n } else {\n\n quant_mat = 5;\n\n }\n\n\n\n if (band->blk_size == 8) {\n\n if(quant_mat >= 5){\n\n av_log(avctx, AV_LOG_ERROR, \"quant_mat %d too large!\\n\", quant_mat);\n\n return -1;\n\n }\n\n band->intra_base = &ivi5_base_quant_8x8_intra[quant_mat][0];\n\n band->inter_base = &ivi5_base_quant_8x8_inter[quant_mat][0];\n\n band->intra_scale = &ivi5_scale_quant_8x8_intra[quant_mat][0];\n\n band->inter_scale = &ivi5_scale_quant_8x8_inter[quant_mat][0];\n\n } else {\n\n band->intra_base = ivi5_base_quant_4x4_intra;\n\n band->inter_base = ivi5_base_quant_4x4_inter;\n\n band->intra_scale = ivi5_scale_quant_4x4_intra;\n\n band->inter_scale = ivi5_scale_quant_4x4_inter;\n\n }\n\n\n\n if (get_bits(&ctx->gb, 2)) {\n\n av_log(avctx, AV_LOG_ERROR, \"End marker missing!\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n }\n\n }\n\n\n\n /* copy chroma parameters into the 2nd chroma plane */\n\n for (i = 0; i < pic_conf.chroma_bands; i++) {\n\n band1 = &ctx->planes[1].bands[i];\n\n band2 = &ctx->planes[2].bands[i];\n\n\n\n band2->width = band1->width;\n\n band2->height = band1->height;\n\n band2->mb_size = band1->mb_size;\n\n band2->blk_size = band1->blk_size;\n\n band2->is_halfpel = band1->is_halfpel;\n\n band2->intra_base = band1->intra_base;\n\n band2->inter_base = band1->inter_base;\n\n band2->intra_scale = band1->intra_scale;\n\n band2->inter_scale = band1->inter_scale;\n\n band2->scan = band1->scan;\n\n band2->inv_transform = band1->inv_transform;\n\n band2->dc_transform = band1->dc_transform;\n\n band2->is_2d_trans = band1->is_2d_trans;\n\n band2->transform_size= band1->transform_size;\n\n }\n\n\n\n /* reallocate internal structures if needed */\n\n if (blk_size_changed) {\n\n result = ff_ivi_init_tiles(ctx->planes, pic_conf.tile_width,\n\n pic_conf.tile_height);\n\n if (result < 0) {\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"Couldn't reallocate internal structures!\\n\");\n\n return result;\n\n }\n\n }\n\n\n\n if (ctx->gop_flags & 8) {\n\n if (get_bits(&ctx->gb, 3)) {\n\n av_log(avctx, AV_LOG_ERROR, \"Alignment bits are not zero!\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n if (get_bits1(&ctx->gb))\n\n skip_bits_long(&ctx->gb, 24); /* skip transparency fill color */\n\n }\n\n\n\n align_get_bits(&ctx->gb);\n\n\n\n skip_bits(&ctx->gb, 23); /* FIXME: unknown meaning */\n\n\n\n /* skip GOP extension if any */\n\n if (get_bits1(&ctx->gb)) {\n\n do {\n\n i = get_bits(&ctx->gb, 16);\n\n } while (i & 0x8000);\n\n }\n\n\n\n align_get_bits(&ctx->gb);\n\n\n\n return 0;\n\n}\n", + "output": "1", + "index": 18414 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int ff_hevc_decode_short_term_rps(HEVCContext *s, ShortTermRPS *rps,\n\n const HEVCSPS *sps, int is_slice_header)\n\n{\n\n HEVCLocalContext *lc = s->HEVClc;\n\n uint8_t rps_predict = 0;\n\n int delta_poc;\n\n int k0 = 0;\n\n int k1 = 0;\n\n int k = 0;\n\n int i;\n\n\n\n GetBitContext *gb = &lc->gb;\n\n\n\n if (rps != sps->st_rps && sps->nb_st_rps)\n\n rps_predict = get_bits1(gb);\n\n\n\n if (rps_predict) {\n\n const ShortTermRPS *rps_ridx;\n\n int delta_rps, abs_delta_rps;\n\n uint8_t use_delta_flag = 0;\n\n uint8_t delta_rps_sign;\n\n\n\n if (is_slice_header) {\n\n unsigned int delta_idx = get_ue_golomb_long(gb) + 1;\n\n if (delta_idx > sps->nb_st_rps) {\n\n av_log(s->avctx, AV_LOG_ERROR,\n\n \"Invalid value of delta_idx in slice header RPS: %d > %d.\\n\",\n\n delta_idx, sps->nb_st_rps);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n rps_ridx = &sps->st_rps[sps->nb_st_rps - delta_idx];\n\n } else\n\n rps_ridx = &sps->st_rps[rps - sps->st_rps - 1];\n\n\n\n delta_rps_sign = get_bits1(gb);\n\n abs_delta_rps = get_ue_golomb_long(gb) + 1;\n\n delta_rps = (1 - (delta_rps_sign << 1)) * abs_delta_rps;\n\n for (i = 0; i <= rps_ridx->num_delta_pocs; i++) {\n\n int used = rps->used[k] = get_bits1(gb);\n\n\n\n if (!used)\n\n use_delta_flag = get_bits1(gb);\n\n\n\n if (used || use_delta_flag) {\n\n if (i < rps_ridx->num_delta_pocs)\n\n delta_poc = delta_rps + rps_ridx->delta_poc[i];\n\n else\n\n delta_poc = delta_rps;\n\n rps->delta_poc[k] = delta_poc;\n\n if (delta_poc < 0)\n\n k0++;\n\n else\n\n k1++;\n\n k++;\n\n }\n\n }\n\n\n\n rps->num_delta_pocs = k;\n\n rps->num_negative_pics = k0;\n\n // sort in increasing order (smallest first)\n\n if (rps->num_delta_pocs != 0) {\n\n int used, tmp;\n\n for (i = 1; i < rps->num_delta_pocs; i++) {\n\n delta_poc = rps->delta_poc[i];\n\n used = rps->used[i];\n\n for (k = i - 1; k >= 0; k--) {\n\n tmp = rps->delta_poc[k];\n\n if (delta_poc < tmp) {\n\n rps->delta_poc[k + 1] = tmp;\n\n rps->used[k + 1] = rps->used[k];\n\n rps->delta_poc[k] = delta_poc;\n\n rps->used[k] = used;\n\n }\n\n }\n\n }\n\n }\n\n if ((rps->num_negative_pics >> 1) != 0) {\n\n int used;\n\n k = rps->num_negative_pics - 1;\n\n // flip the negative values to largest first\n\n for (i = 0; i < rps->num_negative_pics >> 1; i++) {\n\n delta_poc = rps->delta_poc[i];\n\n used = rps->used[i];\n\n rps->delta_poc[i] = rps->delta_poc[k];\n\n rps->used[i] = rps->used[k];\n\n rps->delta_poc[k] = delta_poc;\n\n rps->used[k] = used;\n\n k--;\n\n }\n\n }\n\n } else {\n\n unsigned int prev, nb_positive_pics;\n\n rps->num_negative_pics = get_ue_golomb_long(gb);\n\n nb_positive_pics = get_ue_golomb_long(gb);\n\n\n\n if (rps->num_negative_pics >= MAX_REFS ||\n\n nb_positive_pics >= MAX_REFS) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"Too many refs in a short term RPS.\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n rps->num_delta_pocs = rps->num_negative_pics + nb_positive_pics;\n\n if (rps->num_delta_pocs) {\n\n prev = 0;\n\n for (i = 0; i < rps->num_negative_pics; i++) {\n\n delta_poc = get_ue_golomb_long(gb) + 1;\n\n prev -= delta_poc;\n\n rps->delta_poc[i] = prev;\n\n rps->used[i] = get_bits1(gb);\n\n }\n\n prev = 0;\n\n for (i = 0; i < nb_positive_pics; i++) {\n\n delta_poc = get_ue_golomb_long(gb) + 1;\n\n prev += delta_poc;\n\n rps->delta_poc[rps->num_negative_pics + i] = prev;\n\n rps->used[rps->num_negative_pics + i] = get_bits1(gb);\n\n }\n\n }\n\n }\n\n return 0;\n\n}\n", + "output": "1", + "index": 24834 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void vga_update_text(void *opaque, console_ch_t *chardata)\n\n{\n\n VGACommonState *s = opaque;\n\n int graphic_mode, i, cursor_offset, cursor_visible;\n\n int cw, cheight, width, height, size, c_min, c_max;\n\n uint32_t *src;\n\n console_ch_t *dst, val;\n\n char msg_buffer[80];\n\n int full_update = 0;\n\n\n\n qemu_flush_coalesced_mmio_buffer();\n\n\n\n if (!(s->ar_index & 0x20)) {\n\n graphic_mode = GMODE_BLANK;\n\n } else {\n\n graphic_mode = s->gr[VGA_GFX_MISC] & VGA_GR06_GRAPHICS_MODE;\n\n }\n\n if (graphic_mode != s->graphic_mode) {\n\n s->graphic_mode = graphic_mode;\n\n full_update = 1;\n\n }\n\n if (s->last_width == -1) {\n\n s->last_width = 0;\n\n full_update = 1;\n\n }\n\n\n\n switch (graphic_mode) {\n\n case GMODE_TEXT:\n\n /* TODO: update palette */\n\n full_update |= update_basic_params(s);\n\n\n\n /* total width & height */\n\n cheight = (s->cr[VGA_CRTC_MAX_SCAN] & 0x1f) + 1;\n\n cw = 8;\n\n if (!(s->sr[VGA_SEQ_CLOCK_MODE] & VGA_SR01_CHAR_CLK_8DOTS)) {\n\n cw = 9;\n\n }\n\n if (s->sr[VGA_SEQ_CLOCK_MODE] & 0x08) {\n\n cw = 16; /* NOTE: no 18 pixel wide */\n\n }\n\n width = (s->cr[VGA_CRTC_H_DISP] + 1);\n\n if (s->cr[VGA_CRTC_V_TOTAL] == 100) {\n\n /* ugly hack for CGA 160x100x16 - explain me the logic */\n\n height = 100;\n\n } else {\n\n height = s->cr[VGA_CRTC_V_DISP_END] |\n\n ((s->cr[VGA_CRTC_OVERFLOW] & 0x02) << 7) |\n\n ((s->cr[VGA_CRTC_OVERFLOW] & 0x40) << 3);\n\n height = (height + 1) / cheight;\n\n }\n\n\n\n size = (height * width);\n\n if (size > CH_ATTR_SIZE) {\n\n if (!full_update)\n\n return;\n\n\n\n snprintf(msg_buffer, sizeof(msg_buffer), \"%i x %i Text mode\",\n\n width, height);\n\n break;\n\n }\n\n\n\n if (width != s->last_width || height != s->last_height ||\n\n cw != s->last_cw || cheight != s->last_ch) {\n\n s->last_scr_width = width * cw;\n\n s->last_scr_height = height * cheight;\n\n qemu_console_resize(s->con, s->last_scr_width, s->last_scr_height);\n\n dpy_text_resize(s->con, width, height);\n\n s->last_depth = 0;\n\n s->last_width = width;\n\n s->last_height = height;\n\n s->last_ch = cheight;\n\n s->last_cw = cw;\n\n full_update = 1;\n\n }\n\n\n\n if (full_update) {\n\n s->full_update_gfx = 1;\n\n }\n\n if (s->full_update_text) {\n\n s->full_update_text = 0;\n\n full_update |= 1;\n\n }\n\n\n\n /* Update \"hardware\" cursor */\n\n cursor_offset = ((s->cr[VGA_CRTC_CURSOR_HI] << 8) |\n\n s->cr[VGA_CRTC_CURSOR_LO]) - s->start_addr;\n\n if (cursor_offset != s->cursor_offset ||\n\n s->cr[VGA_CRTC_CURSOR_START] != s->cursor_start ||\n\n s->cr[VGA_CRTC_CURSOR_END] != s->cursor_end || full_update) {\n\n cursor_visible = !(s->cr[VGA_CRTC_CURSOR_START] & 0x20);\n\n if (cursor_visible && cursor_offset < size && cursor_offset >= 0)\n\n dpy_text_cursor(s->con,\n\n TEXTMODE_X(cursor_offset),\n\n TEXTMODE_Y(cursor_offset));\n\n else\n\n dpy_text_cursor(s->con, -1, -1);\n\n s->cursor_offset = cursor_offset;\n\n s->cursor_start = s->cr[VGA_CRTC_CURSOR_START];\n\n s->cursor_end = s->cr[VGA_CRTC_CURSOR_END];\n\n }\n\n\n\n src = (uint32_t *) s->vram_ptr + s->start_addr;\n\n dst = chardata;\n\n\n\n if (full_update) {\n\n for (i = 0; i < size; src ++, dst ++, i ++)\n\n console_write_ch(dst, VMEM2CHTYPE(le32_to_cpu(*src)));\n\n\n\n dpy_text_update(s->con, 0, 0, width, height);\n\n } else {\n\n c_max = 0;\n\n\n\n for (i = 0; i < size; src ++, dst ++, i ++) {\n\n console_write_ch(&val, VMEM2CHTYPE(le32_to_cpu(*src)));\n\n if (*dst != val) {\n\n *dst = val;\n\n c_max = i;\n\n break;\n\n }\n\n }\n\n c_min = i;\n\n for (; i < size; src ++, dst ++, i ++) {\n\n console_write_ch(&val, VMEM2CHTYPE(le32_to_cpu(*src)));\n\n if (*dst != val) {\n\n *dst = val;\n\n c_max = i;\n\n }\n\n }\n\n\n\n if (c_min <= c_max) {\n\n i = TEXTMODE_Y(c_min);\n\n dpy_text_update(s->con, 0, i, width, TEXTMODE_Y(c_max) - i + 1);\n\n }\n\n }\n\n\n\n return;\n\n case GMODE_GRAPH:\n\n if (!full_update)\n\n return;\n\n\n\n s->get_resolution(s, &width, &height);\n\n snprintf(msg_buffer, sizeof(msg_buffer), \"%i x %i Graphic mode\",\n\n width, height);\n\n break;\n\n case GMODE_BLANK:\n\n default:\n\n if (!full_update)\n\n return;\n\n\n\n snprintf(msg_buffer, sizeof(msg_buffer), \"VGA Blank mode\");\n\n break;\n\n }\n\n\n\n /* Display a message */\n\n s->last_width = 60;\n\n s->last_height = height = 3;\n\n dpy_text_cursor(s->con, -1, -1);\n\n dpy_text_resize(s->con, s->last_width, height);\n\n\n\n for (dst = chardata, i = 0; i < s->last_width * height; i ++)\n\n console_write_ch(dst ++, ' ');\n\n\n\n size = strlen(msg_buffer);\n\n width = (s->last_width - size) / 2;\n\n dst = chardata + s->last_width + width;\n\n for (i = 0; i < size; i ++)\n\n console_write_ch(dst ++, 0x00200100 | msg_buffer[i]);\n\n\n\n dpy_text_update(s->con, 0, 0, s->last_width, height);\n\n}\n", + "output": "0", + "index": 5207 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void decode_mb_i(AVSContext *h) {\n\n GetBitContext *gb = &h->s.gb;\n\n int block, pred_mode_uv;\n\n uint8_t top[18];\n\n uint8_t left[18];\n\n uint8_t *d;\n\n\n\n init_mb(h);\n\n\n\n /* get intra prediction modes from stream */\n\n for(block=0;block<4;block++) {\n\n int nA,nB,predpred;\n\n int pos = scan3x3[block];\n\n\n\n nA = h->pred_mode_Y[pos-1];\n\n nB = h->pred_mode_Y[pos-3];\n\n if((nA == NOT_AVAIL) || (nB == NOT_AVAIL))\n\n predpred = 2;\n\n else\n\n predpred = FFMIN(nA,nB);\n\n if(get_bits1(gb))\n\n h->pred_mode_Y[pos] = predpred;\n\n else {\n\n h->pred_mode_Y[pos] = get_bits(gb,2);\n\n if(h->pred_mode_Y[pos] >= predpred)\n\n h->pred_mode_Y[pos]++;\n\n }\n\n }\n\n pred_mode_uv = get_ue_golomb(gb);\n\n if(pred_mode_uv > 6) {\n\n av_log(h->s.avctx, AV_LOG_ERROR, \"illegal intra chroma pred mode\\n\");\n\n pred_mode_uv = 0;\n\n }\n\n\n\n /* save pred modes before they get modified */\n\n h->pred_mode_Y[3] = h->pred_mode_Y[5];\n\n h->pred_mode_Y[6] = h->pred_mode_Y[8];\n\n h->top_pred_Y[h->mbx*2+0] = h->pred_mode_Y[7];\n\n h->top_pred_Y[h->mbx*2+1] = h->pred_mode_Y[8];\n\n\n\n /* modify pred modes according to availability of neighbour samples */\n\n if(!(h->flags & A_AVAIL)) {\n\n modify_pred(left_modifier_l, &h->pred_mode_Y[4] );\n\n modify_pred(left_modifier_l, &h->pred_mode_Y[7] );\n\n modify_pred(left_modifier_c, &pred_mode_uv );\n\n }\n\n if(!(h->flags & B_AVAIL)) {\n\n modify_pred(top_modifier_l, &h->pred_mode_Y[4] );\n\n modify_pred(top_modifier_l, &h->pred_mode_Y[5] );\n\n modify_pred(top_modifier_c, &pred_mode_uv );\n\n }\n\n\n\n /* get coded block pattern */\n\n if(h->pic_type == FF_I_TYPE)\n\n h->cbp = cbp_tab[get_ue_golomb(gb)][0];\n\n if(h->cbp && !h->qp_fixed)\n\n h->qp += get_se_golomb(gb); //qp_delta\n\n\n\n /* luma intra prediction interleaved with residual decode/transform/add */\n\n for(block=0;block<4;block++) {\n\n d = h->cy + h->luma_scan[block];\n\n load_intra_pred_luma(h, top, left, block);\n\n h->intra_pred_l[h->pred_mode_Y[scan3x3[block]]]\n\n (d, top, left, h->l_stride);\n\n if(h->cbp & (1<qp,d,h->l_stride);\n\n }\n\n\n\n /* chroma intra prediction */\n\n /* extend borders by one pixel */\n\n h->left_border_u[9] = h->left_border_u[8];\n\n h->left_border_v[9] = h->left_border_v[8];\n\n h->top_border_u[h->mbx*10+9] = h->top_border_u[h->mbx*10+8];\n\n h->top_border_v[h->mbx*10+9] = h->top_border_v[h->mbx*10+8];\n\n if(h->mbx && h->mby) {\n\n h->top_border_u[h->mbx*10] = h->left_border_u[0] = h->topleft_border_u;\n\n h->top_border_v[h->mbx*10] = h->left_border_v[0] = h->topleft_border_v;\n\n } else {\n\n h->left_border_u[0] = h->left_border_u[1];\n\n h->left_border_v[0] = h->left_border_v[1];\n\n h->top_border_u[h->mbx*10] = h->top_border_u[h->mbx*10+1];\n\n h->top_border_v[h->mbx*10] = h->top_border_v[h->mbx*10+1];\n\n }\n\n h->intra_pred_c[pred_mode_uv](h->cu, &h->top_border_u[h->mbx*10],\n\n h->left_border_u, h->c_stride);\n\n h->intra_pred_c[pred_mode_uv](h->cv, &h->top_border_v[h->mbx*10],\n\n h->left_border_v, h->c_stride);\n\n\n\n decode_residual_chroma(h);\n\n filter_mb(h,I_8X8);\n\n\n\n /* mark motion vectors as intra */\n\n h->mv[MV_FWD_X0] = intra_mv;\n\n set_mvs(&h->mv[MV_FWD_X0], BLK_16X16);\n\n h->mv[MV_BWD_X0] = intra_mv;\n\n set_mvs(&h->mv[MV_BWD_X0], BLK_16X16);\n\n if(h->pic_type != FF_B_TYPE)\n\n *h->col_type = I_8X8;\n\n}\n", + "output": "0", + "index": 16497 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void to_json(const QObject *obj, QString *str, int pretty, int indent)\n\n{\n\n switch (qobject_type(obj)) {\n\n case QTYPE_QINT: {\n\n QInt *val = qobject_to_qint(obj);\n\n char buffer[1024];\n\n\n\n snprintf(buffer, sizeof(buffer), \"%\" PRId64, qint_get_int(val));\n\n qstring_append(str, buffer);\n\n break;\n\n }\n\n case QTYPE_QSTRING: {\n\n QString *val = qobject_to_qstring(obj);\n\n const char *ptr;\n\n\n\n ptr = qstring_get_str(val);\n\n qstring_append(str, \"\\\"\");\n\n while (*ptr) {\n\n if ((ptr[0] & 0xE0) == 0xE0 &&\n\n (ptr[1] & 0x80) && (ptr[2] & 0x80)) {\n\n uint16_t wchar;\n\n char escape[7];\n\n\n\n wchar = (ptr[0] & 0x0F) << 12;\n\n wchar |= (ptr[1] & 0x3F) << 6;\n\n wchar |= (ptr[2] & 0x3F);\n\n ptr += 2;\n\n\n\n snprintf(escape, sizeof(escape), \"\\\\u%04X\", wchar);\n\n qstring_append(str, escape);\n\n } else if ((ptr[0] & 0xE0) == 0xC0 && (ptr[1] & 0x80)) {\n\n uint16_t wchar;\n\n char escape[7];\n\n\n\n wchar = (ptr[0] & 0x1F) << 6;\n\n wchar |= (ptr[1] & 0x3F);\n\n ptr++;\n\n\n\n snprintf(escape, sizeof(escape), \"\\\\u%04X\", wchar);\n\n qstring_append(str, escape);\n\n } else switch (ptr[0]) {\n\n case '\\\"':\n\n qstring_append(str, \"\\\\\\\"\");\n\n break;\n\n case '\\\\':\n\n qstring_append(str, \"\\\\\\\\\");\n\n break;\n\n case '\\b':\n\n qstring_append(str, \"\\\\b\");\n\n break;\n\n case '\\f':\n\n qstring_append(str, \"\\\\f\");\n\n break;\n\n case '\\n':\n\n qstring_append(str, \"\\\\n\");\n\n break;\n\n case '\\r':\n\n qstring_append(str, \"\\\\r\");\n\n break;\n\n case '\\t':\n\n qstring_append(str, \"\\\\t\");\n\n break;\n\n default: {\n\n if (ptr[0] <= 0x1F) {\n\n char escape[7];\n\n snprintf(escape, sizeof(escape), \"\\\\u%04X\", ptr[0]);\n\n qstring_append(str, escape);\n\n } else {\n\n char buf[2] = { ptr[0], 0 };\n\n qstring_append(str, buf);\n\n }\n\n break;\n\n }\n\n }\n\n ptr++;\n\n }\n\n qstring_append(str, \"\\\"\");\n\n break;\n\n }\n\n case QTYPE_QDICT: {\n\n ToJsonIterState s;\n\n QDict *val = qobject_to_qdict(obj);\n\n\n\n s.count = 0;\n\n s.str = str;\n\n s.indent = indent + 1;\n\n s.pretty = pretty;\n\n qstring_append(str, \"{\");\n\n qdict_iter(val, to_json_dict_iter, &s);\n\n if (pretty) {\n\n int j;\n\n qstring_append(str, \"\\n\");\n\n for (j = 0 ; j < indent ; j++)\n\n qstring_append(str, \" \");\n\n }\n\n qstring_append(str, \"}\");\n\n break;\n\n }\n\n case QTYPE_QLIST: {\n\n ToJsonIterState s;\n\n QList *val = qobject_to_qlist(obj);\n\n\n\n s.count = 0;\n\n s.str = str;\n\n s.indent = indent + 1;\n\n s.pretty = pretty;\n\n qstring_append(str, \"[\");\n\n qlist_iter(val, (void *)to_json_list_iter, &s);\n\n if (pretty) {\n\n int j;\n\n qstring_append(str, \"\\n\");\n\n for (j = 0 ; j < indent ; j++)\n\n qstring_append(str, \" \");\n\n }\n\n qstring_append(str, \"]\");\n\n break;\n\n }\n\n case QTYPE_QFLOAT: {\n\n QFloat *val = qobject_to_qfloat(obj);\n\n char buffer[1024];\n\n int len;\n\n\n\n len = snprintf(buffer, sizeof(buffer), \"%f\", qfloat_get_double(val));\n\n while (len > 0 && buffer[len - 1] == '0') {\n\n len--;\n\n }\n\n\n\n if (len && buffer[len - 1] == '.') {\n\n buffer[len - 1] = 0;\n\n } else {\n\n buffer[len] = 0;\n\n }\n\n \n\n qstring_append(str, buffer);\n\n break;\n\n }\n\n case QTYPE_QBOOL: {\n\n QBool *val = qobject_to_qbool(obj);\n\n\n\n if (qbool_get_int(val)) {\n\n qstring_append(str, \"true\");\n\n } else {\n\n qstring_append(str, \"false\");\n\n }\n\n break;\n\n }\n\n case QTYPE_QERROR:\n\n /* XXX: should QError be emitted? */\n\n case QTYPE_NONE:\n\n break;\n\n }\n\n}\n", + "output": "0", + "index": 1907 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int wm8750_tx(I2CSlave *i2c, uint8_t data)\n\n{\n\n WM8750State *s = (WM8750State *) i2c;\n\n uint8_t cmd;\n\n uint16_t value;\n\n\n\n if (s->i2c_len >= 2) {\n\n printf(\"%s: long message (%i bytes)\\n\", __FUNCTION__, s->i2c_len);\n\n#ifdef VERBOSE\n\n return 1;\n\n#endif\n\n }\n\n s->i2c_data[s->i2c_len ++] = data;\n\n if (s->i2c_len != 2)\n\n return 0;\n\n\n\n cmd = s->i2c_data[0] >> 1;\n\n value = ((s->i2c_data[0] << 8) | s->i2c_data[1]) & 0x1ff;\n\n\n\n switch (cmd) {\n\n case WM8750_LADCIN:\t/* ADC Signal Path Control (Left) */\n\n s->diff[0] = (((value >> 6) & 3) == 3);\t/* LINSEL */\n\n if (s->diff[0])\n\n s->in[0] = &s->adc_voice[0 + s->ds * 1];\n\n else\n\n s->in[0] = &s->adc_voice[((value >> 6) & 3) * 1 + 0];\n\n break;\n\n\n\n case WM8750_RADCIN:\t/* ADC Signal Path Control (Right) */\n\n s->diff[1] = (((value >> 6) & 3) == 3);\t/* RINSEL */\n\n if (s->diff[1])\n\n s->in[1] = &s->adc_voice[0 + s->ds * 1];\n\n else\n\n s->in[1] = &s->adc_voice[((value >> 6) & 3) * 1 + 0];\n\n break;\n\n\n\n case WM8750_ADCIN:\t/* ADC Input Mode */\n\n s->ds = (value >> 8) & 1;\t/* DS */\n\n if (s->diff[0])\n\n s->in[0] = &s->adc_voice[0 + s->ds * 1];\n\n if (s->diff[1])\n\n s->in[1] = &s->adc_voice[0 + s->ds * 1];\n\n s->monomix[0] = (value >> 6) & 3;\t/* MONOMIX */\n\n break;\n\n\n\n case WM8750_ADCTL1:\t/* Additional Control (1) */\n\n s->monomix[1] = (value >> 1) & 1;\t/* DMONOMIX */\n\n break;\n\n\n\n case WM8750_PWR1:\t/* Power Management (1) */\n\n s->enable = ((value >> 6) & 7) == 3;\t/* VMIDSEL, VREF */\n\n wm8750_set_format(s);\n\n break;\n\n\n\n case WM8750_LINVOL:\t/* Left Channel PGA */\n\n s->invol[0] = value & 0x3f;\t\t/* LINVOL */\n\n s->inmute[0] = (value >> 7) & 1;\t/* LINMUTE */\n\n wm8750_vol_update(s);\n\n break;\n\n\n\n case WM8750_RINVOL:\t/* Right Channel PGA */\n\n s->invol[1] = value & 0x3f;\t\t/* RINVOL */\n\n s->inmute[1] = (value >> 7) & 1;\t/* RINMUTE */\n\n wm8750_vol_update(s);\n\n break;\n\n\n\n case WM8750_ADCDAC:\t/* ADC and DAC Control */\n\n s->pol = (value >> 5) & 3;\t\t/* ADCPOL */\n\n s->mute = (value >> 3) & 1;\t\t/* DACMU */\n\n wm8750_vol_update(s);\n\n break;\n\n\n\n case WM8750_ADCTL3:\t/* Additional Control (3) */\n\n break;\n\n\n\n case WM8750_LADC:\t/* Left ADC Digital Volume */\n\n s->invol[2] = value & 0xff;\t\t/* LADCVOL */\n\n wm8750_vol_update(s);\n\n break;\n\n\n\n case WM8750_RADC:\t/* Right ADC Digital Volume */\n\n s->invol[3] = value & 0xff;\t\t/* RADCVOL */\n\n wm8750_vol_update(s);\n\n break;\n\n\n\n case WM8750_ALC1:\t/* ALC Control (1) */\n\n s->alc = (value >> 7) & 3;\t\t/* ALCSEL */\n\n break;\n\n\n\n case WM8750_NGATE:\t/* Noise Gate Control */\n\n case WM8750_3D:\t/* 3D enhance */\n\n break;\n\n\n\n case WM8750_LDAC:\t/* Left Channel Digital Volume */\n\n s->outvol[0] = value & 0xff;\t\t/* LDACVOL */\n\n wm8750_vol_update(s);\n\n break;\n\n\n\n case WM8750_RDAC:\t/* Right Channel Digital Volume */\n\n s->outvol[1] = value & 0xff;\t\t/* RDACVOL */\n\n wm8750_vol_update(s);\n\n break;\n\n\n\n case WM8750_BASS:\t/* Bass Control */\n\n break;\n\n\n\n case WM8750_LOUTM1:\t/* Left Mixer Control (1) */\n\n s->path[0] = (value >> 8) & 1;\t\t/* LD2LO */\n\n /* TODO: mute/unmute respective paths */\n\n wm8750_vol_update(s);\n\n break;\n\n\n\n case WM8750_LOUTM2:\t/* Left Mixer Control (2) */\n\n s->path[1] = (value >> 8) & 1;\t\t/* RD2LO */\n\n /* TODO: mute/unmute respective paths */\n\n wm8750_vol_update(s);\n\n break;\n\n\n\n case WM8750_ROUTM1:\t/* Right Mixer Control (1) */\n\n s->path[2] = (value >> 8) & 1;\t\t/* LD2RO */\n\n /* TODO: mute/unmute respective paths */\n\n wm8750_vol_update(s);\n\n break;\n\n\n\n case WM8750_ROUTM2:\t/* Right Mixer Control (2) */\n\n s->path[3] = (value >> 8) & 1;\t\t/* RD2RO */\n\n /* TODO: mute/unmute respective paths */\n\n wm8750_vol_update(s);\n\n break;\n\n\n\n case WM8750_MOUTM1:\t/* Mono Mixer Control (1) */\n\n s->mpath[0] = (value >> 8) & 1;\t\t/* LD2MO */\n\n /* TODO: mute/unmute respective paths */\n\n wm8750_vol_update(s);\n\n break;\n\n\n\n case WM8750_MOUTM2:\t/* Mono Mixer Control (2) */\n\n s->mpath[1] = (value >> 8) & 1;\t\t/* RD2MO */\n\n /* TODO: mute/unmute respective paths */\n\n wm8750_vol_update(s);\n\n break;\n\n\n\n case WM8750_LOUT1V:\t/* LOUT1 Volume */\n\n s->outvol[2] = value & 0x7f;\t\t/* LOUT1VOL */\n\n wm8750_vol_update(s);\n\n break;\n\n\n\n case WM8750_LOUT2V:\t/* LOUT2 Volume */\n\n s->outvol[4] = value & 0x7f;\t\t/* LOUT2VOL */\n\n wm8750_vol_update(s);\n\n break;\n\n\n\n case WM8750_ROUT1V:\t/* ROUT1 Volume */\n\n s->outvol[3] = value & 0x7f;\t\t/* ROUT1VOL */\n\n wm8750_vol_update(s);\n\n break;\n\n\n\n case WM8750_ROUT2V:\t/* ROUT2 Volume */\n\n s->outvol[5] = value & 0x7f;\t\t/* ROUT2VOL */\n\n wm8750_vol_update(s);\n\n break;\n\n\n\n case WM8750_MOUTV:\t/* MONOOUT Volume */\n\n s->outvol[6] = value & 0x7f;\t\t/* MONOOUTVOL */\n\n wm8750_vol_update(s);\n\n break;\n\n\n\n case WM8750_ADCTL2:\t/* Additional Control (2) */\n\n break;\n\n\n\n case WM8750_PWR2:\t/* Power Management (2) */\n\n s->power = value & 0x7e;\n\n /* TODO: mute/unmute respective paths */\n\n wm8750_vol_update(s);\n\n break;\n\n\n\n case WM8750_IFACE:\t/* Digital Audio Interface Format */\n\n s->format = value;\n\n s->master = (value >> 6) & 1;\t\t\t/* MS */\n\n wm8750_clk_update(s, s->master);\n\n break;\n\n\n\n case WM8750_SRATE:\t/* Clocking and Sample Rate Control */\n\n s->rate = &wm_rate_table[(value >> 1) & 0x1f];\n\n wm8750_clk_update(s, 0);\n\n break;\n\n\n\n case WM8750_RESET:\t/* Reset */\n\n wm8750_reset(&s->i2c);\n\n break;\n\n\n\n#ifdef VERBOSE\n\n default:\n\n printf(\"%s: unknown register %02x\\n\", __FUNCTION__, cmd);\n\n#endif\n\n }\n\n\n\n return 0;\n\n}\n", + "output": "1", + "index": 12797 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int swf_read_packet(AVFormatContext *s, AVPacket *pkt)\n\n{\n\n SWFContext *swf = s->priv_data;\n\n AVIOContext *pb = s->pb;\n\n AVStream *vst = NULL, *ast = NULL, *st = 0;\n\n int tag, len, i, frame, v;\n\n\n\n for(;;) {\n\n uint64_t pos = avio_tell(pb);\n\n tag = get_swf_tag(pb, &len);\n\n if (tag < 0)\n\n return AVERROR(EIO);\n\n if (tag == TAG_VIDEOSTREAM) {\n\n int ch_id = avio_rl16(pb);\n\n len -= 2;\n\n\n\n for (i=0; inb_streams; i++) {\n\n st = s->streams[i];\n\n if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && st->id == ch_id)\n\n goto skip;\n\n }\n\n\n\n avio_rl16(pb);\n\n avio_rl16(pb);\n\n avio_rl16(pb);\n\n avio_r8(pb);\n\n /* Check for FLV1 */\n\n vst = av_new_stream(s, ch_id);\n\n if (!vst)\n\n return -1;\n\n vst->codec->codec_type = AVMEDIA_TYPE_VIDEO;\n\n vst->codec->codec_id = ff_codec_get_id(swf_codec_tags, avio_r8(pb));\n\n av_set_pts_info(vst, 16, 256, swf->frame_rate);\n\n vst->codec->time_base = (AVRational){ 256, swf->frame_rate };\n\n len -= 8;\n\n } else if (tag == TAG_STREAMHEAD || tag == TAG_STREAMHEAD2) {\n\n /* streaming found */\n\n int sample_rate_code;\n\n\n\n for (i=0; inb_streams; i++) {\n\n st = s->streams[i];\n\n if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && st->id == -1)\n\n goto skip;\n\n }\n\n\n\n avio_r8(pb);\n\n v = avio_r8(pb);\n\n swf->samples_per_frame = avio_rl16(pb);\n\n ast = av_new_stream(s, -1); /* -1 to avoid clash with video stream ch_id */\n\n if (!ast)\n\n return -1;\n\n ast->codec->channels = 1 + (v&1);\n\n ast->codec->codec_type = AVMEDIA_TYPE_AUDIO;\n\n ast->codec->codec_id = ff_codec_get_id(swf_audio_codec_tags, (v>>4) & 15);\n\n ast->need_parsing = AVSTREAM_PARSE_FULL;\n\n sample_rate_code= (v>>2) & 3;\n\n if (!sample_rate_code)\n\n return AVERROR(EIO);\n\n ast->codec->sample_rate = 11025 << (sample_rate_code-1);\n\n av_set_pts_info(ast, 64, 1, ast->codec->sample_rate);\n\n len -= 4;\n\n } else if (tag == TAG_VIDEOFRAME) {\n\n int ch_id = avio_rl16(pb);\n\n len -= 2;\n\n for(i=0; inb_streams; i++) {\n\n st = s->streams[i];\n\n if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && st->id == ch_id) {\n\n frame = avio_rl16(pb);\n\n av_get_packet(pb, pkt, len-2);\n\n pkt->pos = pos;\n\n pkt->pts = frame;\n\n pkt->stream_index = st->index;\n\n return pkt->size;\n\n }\n\n }\n\n } else if (tag == TAG_STREAMBLOCK) {\n\n for (i = 0; i < s->nb_streams; i++) {\n\n st = s->streams[i];\n\n if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && st->id == -1) {\n\n if (st->codec->codec_id == CODEC_ID_MP3) {\n\n avio_skip(pb, 4);\n\n av_get_packet(pb, pkt, len-4);\n\n } else { // ADPCM, PCM\n\n av_get_packet(pb, pkt, len);\n\n }\n\n pkt->pos = pos;\n\n pkt->stream_index = st->index;\n\n return pkt->size;\n\n }\n\n }\n\n } else if (tag == TAG_JPEG2) {\n\n for (i=0; inb_streams; i++) {\n\n st = s->streams[i];\n\n if (st->codec->codec_id == CODEC_ID_MJPEG && st->id == -2)\n\n break;\n\n }\n\n if (i == s->nb_streams) {\n\n vst = av_new_stream(s, -2); /* -2 to avoid clash with video stream and audio stream */\n\n if (!vst)\n\n return -1;\n\n vst->codec->codec_type = AVMEDIA_TYPE_VIDEO;\n\n vst->codec->codec_id = CODEC_ID_MJPEG;\n\n av_set_pts_info(vst, 64, 256, swf->frame_rate);\n\n vst->codec->time_base = (AVRational){ 256, swf->frame_rate };\n\n st = vst;\n\n }\n\n avio_rl16(pb); /* BITMAP_ID */\n\n av_new_packet(pkt, len-2);\n\n avio_read(pb, pkt->data, 4);\n\n if (AV_RB32(pkt->data) == 0xffd8ffd9 ||\n\n AV_RB32(pkt->data) == 0xffd9ffd8) {\n\n /* old SWF files containing SOI/EOI as data start */\n\n /* files created by swink have reversed tag */\n\n pkt->size -= 4;\n\n avio_read(pb, pkt->data, pkt->size);\n\n } else {\n\n avio_read(pb, pkt->data + 4, pkt->size - 4);\n\n }\n\n pkt->pos = pos;\n\n pkt->stream_index = st->index;\n\n return pkt->size;\n\n }\n\n skip:\n\n avio_skip(pb, len);\n\n }\n\n return 0;\n\n}\n", + "output": "0", + "index": 7064 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int rv10_decode_packet(AVCodecContext *avctx,\n\n const uint8_t *buf, int buf_size, int buf_size2)\n\n{\n\n MpegEncContext *s = avctx->priv_data;\n\n int mb_count, mb_pos, left, start_mb_x;\n\n\n\n init_get_bits(&s->gb, buf, buf_size*8);\n\n if(s->codec_id ==CODEC_ID_RV10)\n\n mb_count = rv10_decode_picture_header(s);\n\n else\n\n mb_count = rv20_decode_picture_header(s);\n\n if (mb_count < 0) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"HEADER ERROR\\n\");\n\n return -1;\n\n }\n\n\n\n if (s->mb_x >= s->mb_width ||\n\n s->mb_y >= s->mb_height) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"POS ERROR %d %d\\n\", s->mb_x, s->mb_y);\n\n return -1;\n\n }\n\n mb_pos = s->mb_y * s->mb_width + s->mb_x;\n\n left = s->mb_width * s->mb_height - mb_pos;\n\n if (mb_count > left) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"COUNT ERROR\\n\");\n\n return -1;\n\n }\n\n\n\n if ((s->mb_x == 0 && s->mb_y == 0) || s->current_picture_ptr==NULL) {\n\n if(s->current_picture_ptr){ //FIXME write parser so we always have complete frames?\n\n ff_er_frame_end(s);\n\n ff_MPV_frame_end(s);\n\n s->mb_x= s->mb_y = s->resync_mb_x = s->resync_mb_y= 0;\n\n }\n\n if(ff_MPV_frame_start(s, avctx) < 0)\n\n return -1;\n\n ff_er_frame_start(s);\n\n } else {\n\n if (s->current_picture_ptr->f.pict_type != s->pict_type) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"Slice type mismatch\\n\");\n\n return -1;\n\n }\n\n }\n\n\n\n av_dlog(avctx, \"qscale=%d\\n\", s->qscale);\n\n\n\n /* default quantization values */\n\n if(s->codec_id== CODEC_ID_RV10){\n\n if(s->mb_y==0) s->first_slice_line=1;\n\n }else{\n\n s->first_slice_line=1;\n\n s->resync_mb_x= s->mb_x;\n\n }\n\n start_mb_x= s->mb_x;\n\n s->resync_mb_y= s->mb_y;\n\n if(s->h263_aic){\n\n s->y_dc_scale_table=\n\n s->c_dc_scale_table= ff_aic_dc_scale_table;\n\n }else{\n\n s->y_dc_scale_table=\n\n s->c_dc_scale_table= ff_mpeg1_dc_scale_table;\n\n }\n\n\n\n if(s->modified_quant)\n\n s->chroma_qscale_table= ff_h263_chroma_qscale_table;\n\n\n\n ff_set_qscale(s, s->qscale);\n\n\n\n s->rv10_first_dc_coded[0] = 0;\n\n s->rv10_first_dc_coded[1] = 0;\n\n s->rv10_first_dc_coded[2] = 0;\n\n s->block_wrap[0]=\n\n s->block_wrap[1]=\n\n s->block_wrap[2]=\n\n s->block_wrap[3]= s->b8_stride;\n\n s->block_wrap[4]=\n\n s->block_wrap[5]= s->mb_stride;\n\n ff_init_block_index(s);\n\n /* decode each macroblock */\n\n\n\n for(s->mb_num_left= mb_count; s->mb_num_left>0; s->mb_num_left--) {\n\n int ret;\n\n ff_update_block_index(s);\n\n av_dlog(avctx, \"**mb x=%d y=%d\\n\", s->mb_x, s->mb_y);\n\n\n\n s->mv_dir = MV_DIR_FORWARD;\n\n s->mv_type = MV_TYPE_16X16;\n\n ret=ff_h263_decode_mb(s, s->block);\n\n\n\n if (ret != SLICE_ERROR && s->gb.size_in_bits < get_bits_count(&s->gb) && 8*buf_size2 >= get_bits_count(&s->gb)){\n\n av_log(avctx, AV_LOG_DEBUG, \"update size from %d to %d\\n\", s->gb.size_in_bits, 8*buf_size2);\n\n s->gb.size_in_bits= 8*buf_size2;\n\n ret= SLICE_OK;\n\n }\n\n\n\n if (ret == SLICE_ERROR || s->gb.size_in_bits < get_bits_count(&s->gb)) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"ERROR at MB %d %d\\n\", s->mb_x, s->mb_y);\n\n return -1;\n\n }\n\n if(s->pict_type != AV_PICTURE_TYPE_B)\n\n ff_h263_update_motion_val(s);\n\n ff_MPV_decode_mb(s, s->block);\n\n if(s->loop_filter)\n\n ff_h263_loop_filter(s);\n\n\n\n if (++s->mb_x == s->mb_width) {\n\n s->mb_x = 0;\n\n s->mb_y++;\n\n ff_init_block_index(s);\n\n }\n\n if(s->mb_x == s->resync_mb_x)\n\n s->first_slice_line=0;\n\n if(ret == SLICE_END) break;\n\n }\n\n\n\n ff_er_add_slice(s, start_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, ER_MB_END);\n\n\n\n return s->gb.size_in_bits;\n\n}\n", + "output": "1", + "index": 25907 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static target_ulong h_client_architecture_support(PowerPCCPU *cpu,\n\n sPAPRMachineState *spapr,\n\n target_ulong opcode,\n\n target_ulong *args)\n\n{\n\n /* Working address in data buffer */\n\n target_ulong addr = ppc64_phys_to_real(args[0]);\n\n target_ulong ov_table;\n\n uint32_t cas_pvr;\n\n sPAPROptionVector *ov1_guest, *ov5_guest, *ov5_cas_old, *ov5_updates;\n\n bool guest_radix;\n\n Error *local_err = NULL;\n\n bool raw_mode_supported = false;\n\n\n\n cas_pvr = cas_check_pvr(spapr, cpu, &addr, &raw_mode_supported, &local_err);\n\n if (local_err) {\n\n error_report_err(local_err);\n\n return H_HARDWARE;\n\n }\n\n\n\n /* Update CPUs */\n\n if (cpu->compat_pvr != cas_pvr) {\n\n ppc_set_compat_all(cas_pvr, &local_err);\n\n if (local_err) {\n\n /* We fail to set compat mode (likely because running with KVM PR),\n\n * but maybe we can fallback to raw mode if the guest supports it.\n\n */\n\n if (!raw_mode_supported) {\n\n error_report_err(local_err);\n\n return H_HARDWARE;\n\n }\n\n local_err = NULL;\n\n }\n\n }\n\n\n\n /* For the future use: here @ov_table points to the first option vector */\n\n ov_table = addr;\n\n\n\n ov1_guest = spapr_ovec_parse_vector(ov_table, 1);\n\n ov5_guest = spapr_ovec_parse_vector(ov_table, 5);\n\n if (spapr_ovec_test(ov5_guest, OV5_MMU_BOTH)) {\n\n error_report(\"guest requested hash and radix MMU, which is invalid.\");\n\n exit(EXIT_FAILURE);\n\n }\n\n /* The radix/hash bit in byte 24 requires special handling: */\n\n guest_radix = spapr_ovec_test(ov5_guest, OV5_MMU_RADIX_300);\n\n spapr_ovec_clear(ov5_guest, OV5_MMU_RADIX_300);\n\n\n\n /*\n\n * HPT resizing is a bit of a special case, because when enabled\n\n * we assume an HPT guest will support it until it says it\n\n * doesn't, instead of assuming it won't support it until it says\n\n * it does. Strictly speaking that approach could break for\n\n * guests which don't make a CAS call, but those are so old we\n\n * don't care about them. Without that assumption we'd have to\n\n * make at least a temporary allocation of an HPT sized for max\n\n * memory, which could be impossibly difficult under KVM HV if\n\n * maxram is large.\n\n */\n\n if (!guest_radix && !spapr_ovec_test(ov5_guest, OV5_HPT_RESIZE)) {\n\n int maxshift = spapr_hpt_shift_for_ramsize(MACHINE(spapr)->maxram_size);\n\n\n\n if (spapr->resize_hpt == SPAPR_RESIZE_HPT_REQUIRED) {\n\n error_report(\n\n \"h_client_architecture_support: Guest doesn't support HPT resizing, but resize-hpt=required\");\n\n exit(1);\n\n }\n\n\n\n if (spapr->htab_shift < maxshift) {\n\n /* Guest doesn't know about HPT resizing, so we\n\n * pre-emptively resize for the maximum permitted RAM. At\n\n * the point this is called, nothing should have been\n\n * entered into the existing HPT */\n\n spapr_reallocate_hpt(spapr, maxshift, &error_fatal);\n\n if (kvm_enabled()) {\n\n /* For KVM PR, update the HPT pointer */\n\n target_ulong sdr1 = (target_ulong)(uintptr_t)spapr->htab\n\n | (spapr->htab_shift - 18);\n\n kvmppc_update_sdr1(sdr1);\n\n }\n\n }\n\n }\n\n\n\n /* NOTE: there are actually a number of ov5 bits where input from the\n\n * guest is always zero, and the platform/QEMU enables them independently\n\n * of guest input. To model these properly we'd want some sort of mask,\n\n * but since they only currently apply to memory migration as defined\n\n * by LoPAPR 1.1, 14.5.4.8, which QEMU doesn't implement, we don't need\n\n * to worry about this for now.\n\n */\n\n ov5_cas_old = spapr_ovec_clone(spapr->ov5_cas);\n\n\n\n /* also clear the radix/hash bit from the current ov5_cas bits to\n\n * be in sync with the newly ov5 bits. Else the radix bit will be\n\n * seen as being removed and this will generate a reset loop\n\n */\n\n spapr_ovec_clear(ov5_cas_old, OV5_MMU_RADIX_300);\n\n\n\n /* full range of negotiated ov5 capabilities */\n\n spapr_ovec_intersect(spapr->ov5_cas, spapr->ov5, ov5_guest);\n\n spapr_ovec_cleanup(ov5_guest);\n\n /* capabilities that have been added since CAS-generated guest reset.\n\n * if capabilities have since been removed, generate another reset\n\n */\n\n ov5_updates = spapr_ovec_new();\n\n spapr->cas_reboot = spapr_ovec_diff(ov5_updates,\n\n ov5_cas_old, spapr->ov5_cas);\n\n /* Now that processing is finished, set the radix/hash bit for the\n\n * guest if it requested a valid mode; otherwise terminate the boot. */\n\n if (guest_radix) {\n\n if (kvm_enabled() && !kvmppc_has_cap_mmu_radix()) {\n\n error_report(\"Guest requested unavailable MMU mode (radix).\");\n\n exit(EXIT_FAILURE);\n\n }\n\n spapr_ovec_set(spapr->ov5_cas, OV5_MMU_RADIX_300);\n\n } else {\n\n if (kvm_enabled() && kvmppc_has_cap_mmu_radix()\n\n && !kvmppc_has_cap_mmu_hash_v3()) {\n\n error_report(\"Guest requested unavailable MMU mode (hash).\");\n\n exit(EXIT_FAILURE);\n\n }\n\n }\n\n spapr->cas_legacy_guest_workaround = !spapr_ovec_test(ov1_guest,\n\n OV1_PPC_3_00);\n\n if (!spapr->cas_reboot) {\n\n spapr->cas_reboot =\n\n (spapr_h_cas_compose_response(spapr, args[1], args[2],\n\n ov5_updates) != 0);\n\n }\n\n spapr_ovec_cleanup(ov5_updates);\n\n\n\n if (spapr->cas_reboot) {\n\n qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);\n\n } else {\n\n /* If ppc_spapr_reset() did not set up a HPT but one is necessary\n\n * (because the guest isn't going to use radix) then set it up here. */\n\n if ((spapr->patb_entry & PATBE1_GR) && !guest_radix) {\n\n /* legacy hash or new hash: */\n\n spapr_setup_hpt_and_vrma(spapr);\n\n }\n\n }\n\n\n\n return H_SUCCESS;\n\n}\n", + "output": "0", + "index": 15038 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int cpu_sparc_handle_mmu_fault (CPUState *env, uint32_t address, int rw,\n\n int is_user, int is_softmmu)\n\n{\n\n int exception = 0;\n\n int access_type, access_perms = 0, access_index = 0;\n\n uint8_t *pde_ptr;\n\n uint32_t pde, virt_addr;\n\n int error_code = 0, is_dirty, prot, ret = 0;\n\n unsigned long paddr, vaddr, page_offset;\n\n\n\n access_type = env->access_type;\n\n if (env->user_mode_only) {\n\n /* user mode only emulation */\n\n ret = -2;\n\n goto do_fault;\n\n }\n\n\n\n virt_addr = address & TARGET_PAGE_MASK;\n\n if ((env->mmuregs[0] & MMU_E) == 0) { /* MMU disabled */\n\n\tpaddr = address;\n\n\tpage_offset = address & (TARGET_PAGE_SIZE - 1);\n\n prot = PAGE_READ | PAGE_WRITE;\n\n goto do_mapping;\n\n }\n\n\n\n /* SPARC reference MMU table walk: Context table->L1->L2->PTE */\n\n /* Context base + context number */\n\n pde_ptr = phys_ram_base + (env->mmuregs[1] << 4) + (env->mmuregs[2] << 4);\n\n env->access_type = ACCESS_MMU;\n\n pde = ldl_raw(pde_ptr);\n\n\n\n /* Ctx pde */\n\n switch (pde & PTE_ENTRYTYPE_MASK) {\n\n case 0: /* Invalid */\n\n error_code = 1;\n\n goto do_fault;\n\n case 2: /* PTE, maybe should not happen? */\n\n case 3: /* Reserved */\n\n error_code = 4;\n\n goto do_fault;\n\n case 1: /* L1 PDE */\n\n\tpde_ptr = phys_ram_base + ((address >> 22) & ~3) + ((pde & ~3) << 4);\n\n\tpde = ldl_raw(pde_ptr);\n\n\n\n\tswitch (pde & PTE_ENTRYTYPE_MASK) {\n\n\tcase 0: /* Invalid */\n\n\t error_code = 1;\n\n\t goto do_fault;\n\n\tcase 3: /* Reserved */\n\n\t error_code = 4;\n\n\t goto do_fault;\n\n\tcase 1: /* L2 PDE */\n\n\t pde_ptr = phys_ram_base + ((address & 0xfc0000) >> 16) + ((pde & ~3) << 4);\n\n\t pde = ldl_raw(pde_ptr);\n\n\n\n\t switch (pde & PTE_ENTRYTYPE_MASK) {\n\n\t case 0: /* Invalid */\n\n\t\terror_code = 1;\n\n\t\tgoto do_fault;\n\n\t case 3: /* Reserved */\n\n\t\terror_code = 4;\n\n\t\tgoto do_fault;\n\n\t case 1: /* L3 PDE */\n\n\t\tpde_ptr = phys_ram_base + ((address & 0x3f000) >> 10) + ((pde & ~3) << 4);\n\n\t\tpde = ldl_raw(pde_ptr);\n\n\n\n\t\tswitch (pde & PTE_ENTRYTYPE_MASK) {\n\n\t\tcase 0: /* Invalid */\n\n\t\t error_code = 1;\n\n\t\t goto do_fault;\n\n\t\tcase 1: /* PDE, should not happen */\n\n\t\tcase 3: /* Reserved */\n\n\t\t error_code = 4;\n\n\t\t goto do_fault;\n\n\t\tcase 2: /* L3 PTE */\n\n\t\t virt_addr = address & TARGET_PAGE_MASK;\n\n\t\t page_offset = (address & TARGET_PAGE_MASK) & (TARGET_PAGE_SIZE - 1);\n\n\t\t}\n\n\t\tbreak;\n\n\t case 2: /* L2 PTE */\n\n\t\tvirt_addr = address & ~0x3ffff;\n\n\t\tpage_offset = address & 0x3ffff;\n\n\t }\n\n\t break;\n\n\tcase 2: /* L1 PTE */\n\n\t virt_addr = address & ~0xffffff;\n\n\t page_offset = address & 0xffffff;\n\n\t}\n\n }\n\n\n\n /* update page modified and dirty bits */\n\n is_dirty = rw && !(pde & PG_MODIFIED_MASK);\n\n if (!(pde & PG_ACCESSED_MASK) || is_dirty) {\n\n\tpde |= PG_ACCESSED_MASK;\n\n\tif (is_dirty)\n\n\t pde |= PG_MODIFIED_MASK;\n\n\tstl_raw(pde_ptr, pde);\n\n }\n\n\n\n /* check access */\n\n access_index = (rw << 2) | ((access_type == ACCESS_CODE)? 2 : 0) | (is_user? 0 : 1);\n\n access_perms = (pde & PTE_ACCESS_MASK) >> PTE_ACCESS_SHIFT;\n\n error_code = access_table[access_index][access_perms];\n\n if (error_code)\n\n\tgoto do_fault;\n\n\n\n /* the page can be put in the TLB */\n\n prot = PAGE_READ;\n\n if (pde & PG_MODIFIED_MASK) {\n\n /* only set write access if already dirty... otherwise wait\n\n for dirty access */\n\n\tif (rw_table[is_user][access_perms])\n\n\t prot |= PAGE_WRITE;\n\n }\n\n\n\n /* Even if large ptes, we map only one 4KB page in the cache to\n\n avoid filling it too fast */\n\n virt_addr = address & TARGET_PAGE_MASK;\n\n paddr = ((pde & PTE_ADDR_MASK) << 4) + page_offset;\n\n\n\n do_mapping:\n\n env->access_type = access_type;\n\n vaddr = virt_addr + ((address & TARGET_PAGE_MASK) & (TARGET_PAGE_SIZE - 1));\n\n\n\n ret = tlb_set_page(env, vaddr, paddr, prot, is_user, is_softmmu);\n\n return ret;\n\n\n\n do_fault:\n\n env->access_type = access_type;\n\n if (env->mmuregs[3]) /* Fault status register */\n\n\tenv->mmuregs[3] = 1; /* overflow (not read before another fault) */\n\n env->mmuregs[3] |= (access_index << 5) | (error_code << 2) | 2;\n\n env->mmuregs[4] = address; /* Fault address register */\n\n\n\n if (env->mmuregs[0] & MMU_NF) // No fault\n\n\treturn 0;\n\n\n\n env->exception_index = exception;\n\n env->error_code = error_code;\n\n return error_code;\n\n}\n", + "output": "0", + "index": 1554 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int decode_mb_info(IVI4DecContext *ctx, IVIBandDesc *band,\n\n IVITile *tile, AVCodecContext *avctx)\n\n{\n\n int x, y, mv_x, mv_y, mv_delta, offs, mb_offset, blks_per_mb,\n\n mv_scale, mb_type_bits;\n\n IVIMbInfo *mb, *ref_mb;\n\n int row_offset = band->mb_size * band->pitch;\n\n\n\n mb = tile->mbs;\n\n ref_mb = tile->ref_mbs;\n\n offs = tile->ypos * band->pitch + tile->xpos;\n\n\n\n blks_per_mb = band->mb_size != band->blk_size ? 4 : 1;\n\n mb_type_bits = ctx->frame_type == FRAMETYPE_BIDIR ? 2 : 1;\n\n\n\n /* scale factor for motion vectors */\n\n mv_scale = (ctx->planes[0].bands[0].mb_size >> 3) - (band->mb_size >> 3);\n\n mv_x = mv_y = 0;\n\n\n\n for (y = tile->ypos; y < tile->ypos + tile->height; y += band->mb_size) {\n\n mb_offset = offs;\n\n\n\n for (x = tile->xpos; x < tile->xpos + tile->width; x += band->mb_size) {\n\n mb->xpos = x;\n\n mb->ypos = y;\n\n mb->buf_offs = mb_offset;\n\n\n\n if (get_bits1(&ctx->gb)) {\n\n if (ctx->frame_type == FRAMETYPE_INTRA) {\n\n av_log(avctx, AV_LOG_ERROR, \"Empty macroblock in an INTRA picture!\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n mb->type = 1; /* empty macroblocks are always INTER */\n\n mb->cbp = 0; /* all blocks are empty */\n\n\n\n mb->q_delta = 0;\n\n if (!band->plane && !band->band_num && ctx->in_q) {\n\n mb->q_delta = get_vlc2(&ctx->gb, ctx->mb_vlc.tab->table,\n\n IVI_VLC_BITS, 1);\n\n mb->q_delta = IVI_TOSIGNED(mb->q_delta);\n\n }\n\n\n\n mb->mv_x = mb->mv_y = 0; /* no motion vector coded */\n\n if (band->inherit_mv) {\n\n /* motion vector inheritance */\n\n if (mv_scale) {\n\n mb->mv_x = ivi_scale_mv(ref_mb->mv_x, mv_scale);\n\n mb->mv_y = ivi_scale_mv(ref_mb->mv_y, mv_scale);\n\n } else {\n\n mb->mv_x = ref_mb->mv_x;\n\n mb->mv_y = ref_mb->mv_y;\n\n }\n\n }\n\n } else {\n\n if (band->inherit_mv) {\n\n mb->type = ref_mb->type; /* copy mb_type from corresponding reference mb */\n\n } else if (ctx->frame_type == FRAMETYPE_INTRA) {\n\n mb->type = 0; /* mb_type is always INTRA for intra-frames */\n\n } else {\n\n mb->type = get_bits(&ctx->gb, mb_type_bits);\n\n }\n\n\n\n mb->cbp = get_bits(&ctx->gb, blks_per_mb);\n\n\n\n mb->q_delta = 0;\n\n if (band->inherit_qdelta) {\n\n if (ref_mb) mb->q_delta = ref_mb->q_delta;\n\n } else if (mb->cbp || (!band->plane && !band->band_num &&\n\n ctx->in_q)) {\n\n mb->q_delta = get_vlc2(&ctx->gb, ctx->mb_vlc.tab->table,\n\n IVI_VLC_BITS, 1);\n\n mb->q_delta = IVI_TOSIGNED(mb->q_delta);\n\n }\n\n\n\n if (!mb->type) {\n\n mb->mv_x = mb->mv_y = 0; /* there is no motion vector in intra-macroblocks */\n\n } else {\n\n if (band->inherit_mv) {\n\n /* motion vector inheritance */\n\n if (mv_scale) {\n\n mb->mv_x = ivi_scale_mv(ref_mb->mv_x, mv_scale);\n\n mb->mv_y = ivi_scale_mv(ref_mb->mv_y, mv_scale);\n\n } else {\n\n mb->mv_x = ref_mb->mv_x;\n\n mb->mv_y = ref_mb->mv_y;\n\n }\n\n } else {\n\n /* decode motion vector deltas */\n\n mv_delta = get_vlc2(&ctx->gb, ctx->mb_vlc.tab->table,\n\n IVI_VLC_BITS, 1);\n\n mv_y += IVI_TOSIGNED(mv_delta);\n\n mv_delta = get_vlc2(&ctx->gb, ctx->mb_vlc.tab->table,\n\n IVI_VLC_BITS, 1);\n\n mv_x += IVI_TOSIGNED(mv_delta);\n\n mb->mv_x = mv_x;\n\n mb->mv_y = mv_y;\n\n }\n\n }\n\n }\n\n\n\n mb++;\n\n if (ref_mb)\n\n ref_mb++;\n\n mb_offset += band->mb_size;\n\n }\n\n\n\n offs += row_offset;\n\n }\n\n\n\n align_get_bits(&ctx->gb);\n\n\n\n return 0;\n\n}\n", + "output": "0", + "index": 11065 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int mpc8544_load_device_tree(CPUPPCState *env,\n\n target_phys_addr_t addr,\n\n target_phys_addr_t ramsize,\n\n target_phys_addr_t initrd_base,\n\n target_phys_addr_t initrd_size,\n\n const char *kernel_cmdline)\n\n{\n\n int ret = -1;\n\n uint32_t mem_reg_property[] = {0, cpu_to_be32(ramsize)};\n\n int fdt_size;\n\n void *fdt;\n\n uint8_t hypercall[16];\n\n uint32_t clock_freq = 400000000;\n\n uint32_t tb_freq = 400000000;\n\n int i;\n\n char compatible[] = \"MPC8544DS\\0MPC85xxDS\";\n\n char model[] = \"MPC8544DS\";\n\n char soc[128];\n\n char ser0[128];\n\n char ser1[128];\n\n char mpic[128];\n\n uint32_t mpic_ph;\n\n char gutil[128];\n\n char pci[128];\n\n uint32_t pci_map[7 * 8];\n\n uint32_t pci_ranges[12] = { 0x2000000, 0x0, 0xc0000000, 0xc0000000, 0x0,\n\n 0x20000000, 0x1000000, 0x0, 0x0, 0xe1000000,\n\n 0x0, 0x10000 };\n\n QemuOpts *machine_opts;\n\n const char *dumpdtb = NULL;\n\n\n\n fdt = create_device_tree(&fdt_size);\n\n if (fdt == NULL) {\n\n goto out;\n\n }\n\n\n\n /* Manipulate device tree in memory. */\n\n qemu_devtree_setprop_string(fdt, \"/\", \"model\", model);\n\n qemu_devtree_setprop(fdt, \"/\", \"compatible\", compatible,\n\n sizeof(compatible));\n\n qemu_devtree_setprop_cell(fdt, \"/\", \"#address-cells\", 1);\n\n qemu_devtree_setprop_cell(fdt, \"/\", \"#size-cells\", 1);\n\n\n\n qemu_devtree_add_subnode(fdt, \"/memory\");\n\n qemu_devtree_setprop_string(fdt, \"/memory\", \"device_type\", \"memory\");\n\n qemu_devtree_setprop(fdt, \"/memory\", \"reg\", mem_reg_property,\n\n sizeof(mem_reg_property));\n\n\n\n qemu_devtree_add_subnode(fdt, \"/chosen\");\n\n if (initrd_size) {\n\n ret = qemu_devtree_setprop_cell(fdt, \"/chosen\", \"linux,initrd-start\",\n\n initrd_base);\n\n if (ret < 0) {\n\n fprintf(stderr, \"couldn't set /chosen/linux,initrd-start\\n\");\n\n }\n\n\n\n ret = qemu_devtree_setprop_cell(fdt, \"/chosen\", \"linux,initrd-end\",\n\n (initrd_base + initrd_size));\n\n if (ret < 0) {\n\n fprintf(stderr, \"couldn't set /chosen/linux,initrd-end\\n\");\n\n }\n\n }\n\n\n\n ret = qemu_devtree_setprop_string(fdt, \"/chosen\", \"bootargs\",\n\n kernel_cmdline);\n\n if (ret < 0)\n\n fprintf(stderr, \"couldn't set /chosen/bootargs\\n\");\n\n\n\n if (kvm_enabled()) {\n\n /* Read out host's frequencies */\n\n clock_freq = kvmppc_get_clockfreq();\n\n tb_freq = kvmppc_get_tbfreq();\n\n\n\n /* indicate KVM hypercall interface */\n\n qemu_devtree_add_subnode(fdt, \"/hypervisor\");\n\n qemu_devtree_setprop_string(fdt, \"/hypervisor\", \"compatible\",\n\n \"linux,kvm\");\n\n kvmppc_get_hypercall(env, hypercall, sizeof(hypercall));\n\n qemu_devtree_setprop(fdt, \"/hypervisor\", \"hcall-instructions\",\n\n hypercall, sizeof(hypercall));\n\n }\n\n\n\n /* Create CPU nodes */\n\n qemu_devtree_add_subnode(fdt, \"/cpus\");\n\n qemu_devtree_setprop_cell(fdt, \"/cpus\", \"#address-cells\", 1);\n\n qemu_devtree_setprop_cell(fdt, \"/cpus\", \"#size-cells\", 0);\n\n\n\n /* We need to generate the cpu nodes in reverse order, so Linux can pick\n\n the first node as boot node and be happy */\n\n for (i = smp_cpus - 1; i >= 0; i--) {\n\n char cpu_name[128];\n\n uint64_t cpu_release_addr = MPC8544_SPIN_BASE + (i * 0x20);\n\n\n\n for (env = first_cpu; env != NULL; env = env->next_cpu) {\n\n if (env->cpu_index == i) {\n\n break;\n\n }\n\n }\n\n\n\n if (!env) {\n\n continue;\n\n }\n\n\n\n snprintf(cpu_name, sizeof(cpu_name), \"/cpus/PowerPC,8544@%x\", env->cpu_index);\n\n qemu_devtree_add_subnode(fdt, cpu_name);\n\n qemu_devtree_setprop_cell(fdt, cpu_name, \"clock-frequency\", clock_freq);\n\n qemu_devtree_setprop_cell(fdt, cpu_name, \"timebase-frequency\", tb_freq);\n\n qemu_devtree_setprop_string(fdt, cpu_name, \"device_type\", \"cpu\");\n\n qemu_devtree_setprop_cell(fdt, cpu_name, \"reg\", env->cpu_index);\n\n qemu_devtree_setprop_cell(fdt, cpu_name, \"d-cache-line-size\",\n\n env->dcache_line_size);\n\n qemu_devtree_setprop_cell(fdt, cpu_name, \"i-cache-line-size\",\n\n env->icache_line_size);\n\n qemu_devtree_setprop_cell(fdt, cpu_name, \"d-cache-size\", 0x8000);\n\n qemu_devtree_setprop_cell(fdt, cpu_name, \"i-cache-size\", 0x8000);\n\n qemu_devtree_setprop_cell(fdt, cpu_name, \"bus-frequency\", 0);\n\n if (env->cpu_index) {\n\n qemu_devtree_setprop_string(fdt, cpu_name, \"status\", \"disabled\");\n\n qemu_devtree_setprop_string(fdt, cpu_name, \"enable-method\", \"spin-table\");\n\n qemu_devtree_setprop_u64(fdt, cpu_name, \"cpu-release-addr\",\n\n cpu_release_addr);\n\n } else {\n\n qemu_devtree_setprop_string(fdt, cpu_name, \"status\", \"okay\");\n\n }\n\n }\n\n\n\n qemu_devtree_add_subnode(fdt, \"/aliases\");\n\n /* XXX These should go into their respective devices' code */\n\n snprintf(soc, sizeof(soc), \"/soc8544@%x\", MPC8544_CCSRBAR_BASE);\n\n qemu_devtree_add_subnode(fdt, soc);\n\n qemu_devtree_setprop_string(fdt, soc, \"device_type\", \"soc\");\n\n qemu_devtree_setprop_string(fdt, soc, \"compatible\", \"simple-bus\");\n\n qemu_devtree_setprop_cell(fdt, soc, \"#address-cells\", 1);\n\n qemu_devtree_setprop_cell(fdt, soc, \"#size-cells\", 1);\n\n qemu_devtree_setprop_cells(fdt, soc, \"ranges\", 0x0, MPC8544_CCSRBAR_BASE,\n\n MPC8544_CCSRBAR_SIZE);\n\n qemu_devtree_setprop_cells(fdt, soc, \"reg\", MPC8544_CCSRBAR_BASE,\n\n MPC8544_CCSRBAR_REGSIZE);\n\n /* XXX should contain a reasonable value */\n\n qemu_devtree_setprop_cell(fdt, soc, \"bus-frequency\", 0);\n\n\n\n snprintf(mpic, sizeof(mpic), \"%s/pic@%x\", soc,\n\n MPC8544_MPIC_REGS_BASE - MPC8544_CCSRBAR_BASE);\n\n qemu_devtree_add_subnode(fdt, mpic);\n\n qemu_devtree_setprop_string(fdt, mpic, \"device_type\", \"open-pic\");\n\n qemu_devtree_setprop_string(fdt, mpic, \"compatible\", \"chrp,open-pic\");\n\n qemu_devtree_setprop_cells(fdt, mpic, \"reg\", MPC8544_MPIC_REGS_BASE -\n\n MPC8544_CCSRBAR_BASE, 0x40000);\n\n qemu_devtree_setprop_cell(fdt, mpic, \"#address-cells\", 0);\n\n qemu_devtree_setprop_cell(fdt, mpic, \"#interrupt-cells\", 2);\n\n mpic_ph = qemu_devtree_alloc_phandle(fdt);\n\n qemu_devtree_setprop_cell(fdt, mpic, \"phandle\", mpic_ph);\n\n qemu_devtree_setprop_cell(fdt, mpic, \"linux,phandle\", mpic_ph);\n\n qemu_devtree_setprop(fdt, mpic, \"interrupt-controller\", NULL, 0);\n\n\n\n /*\n\n * We have to generate ser1 first, because Linux takes the first\n\n * device it finds in the dt as serial output device. And we generate\n\n * devices in reverse order to the dt.\n\n */\n\n snprintf(ser1, sizeof(ser1), \"%s/serial@%x\", soc,\n\n MPC8544_SERIAL1_REGS_BASE - MPC8544_CCSRBAR_BASE);\n\n qemu_devtree_add_subnode(fdt, ser1);\n\n qemu_devtree_setprop_string(fdt, ser1, \"device_type\", \"serial\");\n\n qemu_devtree_setprop_string(fdt, ser1, \"compatible\", \"ns16550\");\n\n qemu_devtree_setprop_cells(fdt, ser1, \"reg\", MPC8544_SERIAL1_REGS_BASE -\n\n MPC8544_CCSRBAR_BASE, 0x100);\n\n qemu_devtree_setprop_cell(fdt, ser1, \"cell-index\", 1);\n\n qemu_devtree_setprop_cell(fdt, ser1, \"clock-frequency\", 0);\n\n qemu_devtree_setprop_cells(fdt, ser1, \"interrupts\", 42, 2);\n\n qemu_devtree_setprop_phandle(fdt, ser1, \"interrupt-parent\", mpic);\n\n qemu_devtree_setprop_string(fdt, \"/aliases\", \"serial1\", ser1);\n\n\n\n snprintf(ser0, sizeof(ser0), \"%s/serial@%x\", soc,\n\n MPC8544_SERIAL0_REGS_BASE - MPC8544_CCSRBAR_BASE);\n\n qemu_devtree_add_subnode(fdt, ser0);\n\n qemu_devtree_setprop_string(fdt, ser0, \"device_type\", \"serial\");\n\n qemu_devtree_setprop_string(fdt, ser0, \"compatible\", \"ns16550\");\n\n qemu_devtree_setprop_cells(fdt, ser0, \"reg\", MPC8544_SERIAL0_REGS_BASE -\n\n MPC8544_CCSRBAR_BASE, 0x100);\n\n qemu_devtree_setprop_cell(fdt, ser0, \"cell-index\", 0);\n\n qemu_devtree_setprop_cell(fdt, ser0, \"clock-frequency\", 0);\n\n qemu_devtree_setprop_cells(fdt, ser0, \"interrupts\", 42, 2);\n\n qemu_devtree_setprop_phandle(fdt, ser0, \"interrupt-parent\", mpic);\n\n qemu_devtree_setprop_string(fdt, \"/aliases\", \"serial0\", ser0);\n\n qemu_devtree_setprop_string(fdt, \"/chosen\", \"linux,stdout-path\", ser0);\n\n\n\n snprintf(gutil, sizeof(gutil), \"%s/global-utilities@%x\", soc,\n\n MPC8544_UTIL_BASE - MPC8544_CCSRBAR_BASE);\n\n qemu_devtree_add_subnode(fdt, gutil);\n\n qemu_devtree_setprop_string(fdt, gutil, \"compatible\", \"fsl,mpc8544-guts\");\n\n qemu_devtree_setprop_cells(fdt, gutil, \"reg\", MPC8544_UTIL_BASE -\n\n MPC8544_CCSRBAR_BASE, 0x1000);\n\n qemu_devtree_setprop(fdt, gutil, \"fsl,has-rstcr\", NULL, 0);\n\n\n\n snprintf(pci, sizeof(pci), \"/pci@%x\", MPC8544_PCI_REGS_BASE);\n\n qemu_devtree_add_subnode(fdt, pci);\n\n qemu_devtree_setprop_cell(fdt, pci, \"cell-index\", 0);\n\n qemu_devtree_setprop_string(fdt, pci, \"compatible\", \"fsl,mpc8540-pci\");\n\n qemu_devtree_setprop_string(fdt, pci, \"device_type\", \"pci\");\n\n qemu_devtree_setprop_cells(fdt, pci, \"interrupt-map-mask\", 0xf800, 0x0,\n\n 0x0, 0x7);\n\n pci_map_create(fdt, pci_map, qemu_devtree_get_phandle(fdt, mpic));\n\n qemu_devtree_setprop(fdt, pci, \"interrupt-map\", pci_map, sizeof(pci_map));\n\n qemu_devtree_setprop_phandle(fdt, pci, \"interrupt-parent\", mpic);\n\n qemu_devtree_setprop_cells(fdt, pci, \"interrupts\", 24, 2);\n\n qemu_devtree_setprop_cells(fdt, pci, \"bus-range\", 0, 255);\n\n for (i = 0; i < 12; i++) {\n\n pci_ranges[i] = cpu_to_be32(pci_ranges[i]);\n\n }\n\n qemu_devtree_setprop(fdt, pci, \"ranges\", pci_ranges, sizeof(pci_ranges));\n\n qemu_devtree_setprop_cells(fdt, pci, \"reg\", MPC8544_PCI_REGS_BASE,\n\n 0x1000);\n\n qemu_devtree_setprop_cell(fdt, pci, \"clock-frequency\", 66666666);\n\n qemu_devtree_setprop_cell(fdt, pci, \"#interrupt-cells\", 1);\n\n qemu_devtree_setprop_cell(fdt, pci, \"#size-cells\", 2);\n\n qemu_devtree_setprop_cell(fdt, pci, \"#address-cells\", 3);\n\n qemu_devtree_setprop_string(fdt, \"/aliases\", \"pci0\", pci);\n\n\n\n machine_opts = qemu_opts_find(qemu_find_opts(\"machine\"), 0);\n\n if (machine_opts) {\n\n dumpdtb = qemu_opt_get(machine_opts, \"dumpdtb\");\n\n }\n\n if (dumpdtb) {\n\n /* Dump the dtb to a file and quit */\n\n FILE *f = fopen(dumpdtb, \"wb\");\n\n size_t len;\n\n len = fwrite(fdt, fdt_size, 1, f);\n\n fclose(f);\n\n if (len != fdt_size) {\n\n exit(1);\n\n }\n\n exit(0);\n\n }\n\n\n\n ret = rom_add_blob_fixed(BINARY_DEVICE_TREE_FILE, fdt, fdt_size, addr);\n\n if (ret < 0) {\n\n goto out;\n\n }\n\n g_free(fdt);\n\n ret = fdt_size;\n\n\n\nout:\n\n\n\n return ret;\n\n}\n", + "output": "0", + "index": 18047 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void mov_fix_index(MOVContext *mov, AVStream *st)\n\n{\n\n MOVStreamContext *msc = st->priv_data;\n\n AVIndexEntry *e_old = st->index_entries;\n\n int nb_old = st->nb_index_entries;\n\n const AVIndexEntry *e_old_end = e_old + nb_old;\n\n const AVIndexEntry *current = NULL;\n\n MOVStts *ctts_data_old = msc->ctts_data;\n\n int64_t ctts_index_old = 0;\n\n int64_t ctts_sample_old = 0;\n\n int64_t ctts_count_old = msc->ctts_count;\n\n int64_t edit_list_media_time = 0;\n\n int64_t edit_list_duration = 0;\n\n int64_t frame_duration = 0;\n\n int64_t edit_list_dts_counter = 0;\n\n int64_t edit_list_dts_entry_end = 0;\n\n int64_t edit_list_start_ctts_sample = 0;\n\n int64_t curr_cts;\n\n int64_t curr_ctts = 0;\n\n int64_t min_corrected_pts = -1;\n\n int64_t empty_edits_sum_duration = 0;\n\n int64_t edit_list_index = 0;\n\n int64_t index;\n\n int flags;\n\n int64_t start_dts = 0;\n\n int64_t edit_list_start_encountered = 0;\n\n int64_t search_timestamp = 0;\n\n int64_t* frame_duration_buffer = NULL;\n\n int num_discarded_begin = 0;\n\n int first_non_zero_audio_edit = -1;\n\n int packet_skip_samples = 0;\n\n MOVIndexRange *current_index_range;\n\n int i;\n\n int found_keyframe_after_edit = 0;\n\n\n\n if (!msc->elst_data || msc->elst_count <= 0 || nb_old <= 0) {\n\n return;\n\n }\n\n\n\n // allocate the index ranges array\n\n msc->index_ranges = av_malloc((msc->elst_count + 1) * sizeof(msc->index_ranges[0]));\n\n if (!msc->index_ranges) {\n\n av_log(mov->fc, AV_LOG_ERROR, \"Cannot allocate index ranges buffer\\n\");\n\n return;\n\n }\n\n msc->current_index_range = msc->index_ranges;\n\n current_index_range = msc->index_ranges - 1;\n\n\n\n // Clean AVStream from traces of old index\n\n st->index_entries = NULL;\n\n st->index_entries_allocated_size = 0;\n\n st->nb_index_entries = 0;\n\n\n\n // Clean ctts fields of MOVStreamContext\n\n msc->ctts_data = NULL;\n\n msc->ctts_count = 0;\n\n msc->ctts_index = 0;\n\n msc->ctts_sample = 0;\n\n msc->ctts_allocated_size = 0;\n\n\n\n // If the dts_shift is positive (in case of negative ctts values in mov),\n\n // then negate the DTS by dts_shift\n\n if (msc->dts_shift > 0) {\n\n edit_list_dts_entry_end -= msc->dts_shift;\n\n av_log(mov->fc, AV_LOG_DEBUG, \"Shifting DTS by %d because of negative CTTS.\\n\", msc->dts_shift);\n\n }\n\n\n\n start_dts = edit_list_dts_entry_end;\n\n\n\n while (get_edit_list_entry(mov, msc, edit_list_index, &edit_list_media_time,\n\n &edit_list_duration, mov->time_scale)) {\n\n av_log(mov->fc, AV_LOG_DEBUG, \"Processing st: %d, edit list %\"PRId64\" - media time: %\"PRId64\", duration: %\"PRId64\"\\n\",\n\n st->index, edit_list_index, edit_list_media_time, edit_list_duration);\n\n edit_list_index++;\n\n edit_list_dts_counter = edit_list_dts_entry_end;\n\n edit_list_dts_entry_end += edit_list_duration;\n\n num_discarded_begin = 0;\n\n if (edit_list_media_time == -1) {\n\n empty_edits_sum_duration += edit_list_duration;\n\n continue;\n\n }\n\n\n\n // If we encounter a non-negative edit list reset the skip_samples/start_pad fields and set them\n\n // according to the edit list below.\n\n if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {\n\n if (first_non_zero_audio_edit < 0) {\n\n first_non_zero_audio_edit = 1;\n\n } else {\n\n first_non_zero_audio_edit = 0;\n\n }\n\n\n\n if (first_non_zero_audio_edit > 0)\n\n st->skip_samples = msc->start_pad = 0;\n\n }\n\n\n\n // While reordering frame index according to edit list we must handle properly\n\n // the scenario when edit list entry starts from none key frame.\n\n // We find closest previous key frame and preserve it and consequent frames in index.\n\n // All frames which are outside edit list entry time boundaries will be dropped after decoding.\n\n search_timestamp = edit_list_media_time;\n\n if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {\n\n // Audio decoders like AAC need need a decoder delay samples previous to the current sample,\n\n // to correctly decode this frame. Hence for audio we seek to a frame 1 sec. before the\n\n // edit_list_media_time to cover the decoder delay.\n\n search_timestamp = FFMAX(search_timestamp - msc->time_scale, e_old[0].timestamp);\n\n }\n\n\n\n if (find_prev_closest_index(st, e_old, nb_old, ctts_data_old, ctts_count_old, search_timestamp, 0,\n\n &index, &ctts_index_old, &ctts_sample_old) < 0) {\n\n av_log(mov->fc, AV_LOG_WARNING,\n\n \"st: %d edit list: %\"PRId64\" Missing key frame while searching for timestamp: %\"PRId64\"\\n\",\n\n st->index, edit_list_index, search_timestamp);\n\n if (find_prev_closest_index(st, e_old, nb_old, ctts_data_old, ctts_count_old, search_timestamp, AVSEEK_FLAG_ANY,\n\n &index, &ctts_index_old, &ctts_sample_old) < 0) {\n\n av_log(mov->fc, AV_LOG_WARNING,\n\n \"st: %d edit list %\"PRId64\" Cannot find an index entry before timestamp: %\"PRId64\".\\n\",\n\n st->index, edit_list_index, search_timestamp);\n\n index = 0;\n\n ctts_index_old = 0;\n\n ctts_sample_old = 0;\n\n }\n\n }\n\n current = e_old + index;\n\n edit_list_start_ctts_sample = ctts_sample_old;\n\n\n\n // Iterate over index and arrange it according to edit list\n\n edit_list_start_encountered = 0;\n\n found_keyframe_after_edit = 0;\n\n for (; current < e_old_end; current++, index++) {\n\n // check if frame outside edit list mark it for discard\n\n frame_duration = (current + 1 < e_old_end) ?\n\n ((current + 1)->timestamp - current->timestamp) : edit_list_duration;\n\n\n\n flags = current->flags;\n\n\n\n // frames (pts) before or after edit list\n\n curr_cts = current->timestamp + msc->dts_shift;\n\n curr_ctts = 0;\n\n\n\n if (ctts_data_old && ctts_index_old < ctts_count_old) {\n\n curr_ctts = ctts_data_old[ctts_index_old].duration;\n\n av_log(mov->fc, AV_LOG_DEBUG, \"stts: %\"PRId64\" ctts: %\"PRId64\", ctts_index: %\"PRId64\", ctts_count: %\"PRId64\"\\n\",\n\n curr_cts, curr_ctts, ctts_index_old, ctts_count_old);\n\n curr_cts += curr_ctts;\n\n ctts_sample_old++;\n\n if (ctts_sample_old == ctts_data_old[ctts_index_old].count) {\n\n if (add_ctts_entry(&msc->ctts_data, &msc->ctts_count,\n\n &msc->ctts_allocated_size,\n\n ctts_data_old[ctts_index_old].count - edit_list_start_ctts_sample,\n\n ctts_data_old[ctts_index_old].duration) == -1) {\n\n av_log(mov->fc, AV_LOG_ERROR, \"Cannot add CTTS entry %\"PRId64\" - {%\"PRId64\", %d}\\n\",\n\n ctts_index_old,\n\n ctts_data_old[ctts_index_old].count - edit_list_start_ctts_sample,\n\n ctts_data_old[ctts_index_old].duration);\n\n break;\n\n }\n\n ctts_index_old++;\n\n ctts_sample_old = 0;\n\n edit_list_start_ctts_sample = 0;\n\n }\n\n }\n\n\n\n if (curr_cts < edit_list_media_time || curr_cts >= (edit_list_duration + edit_list_media_time)) {\n\n if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && st->codecpar->codec_id != AV_CODEC_ID_VORBIS &&\n\n curr_cts < edit_list_media_time && curr_cts + frame_duration > edit_list_media_time &&\n\n first_non_zero_audio_edit > 0) {\n\n packet_skip_samples = edit_list_media_time - curr_cts;\n\n st->skip_samples += packet_skip_samples;\n\n\n\n // Shift the index entry timestamp by packet_skip_samples to be correct.\n\n edit_list_dts_counter -= packet_skip_samples;\n\n if (edit_list_start_encountered == 0) {\n\n edit_list_start_encountered = 1;\n\n // Make timestamps strictly monotonically increasing for audio, by rewriting timestamps for\n\n // discarded packets.\n\n if (frame_duration_buffer) {\n\n fix_index_entry_timestamps(st, st->nb_index_entries, edit_list_dts_counter,\n\n frame_duration_buffer, num_discarded_begin);\n\n\n }\n\n }\n\n\n\n av_log(mov->fc, AV_LOG_DEBUG, \"skip %d audio samples from curr_cts: %\"PRId64\"\\n\", packet_skip_samples, curr_cts);\n\n } else {\n\n flags |= AVINDEX_DISCARD_FRAME;\n\n av_log(mov->fc, AV_LOG_DEBUG, \"drop a frame at curr_cts: %\"PRId64\" @ %\"PRId64\"\\n\", curr_cts, index);\n\n\n\n if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && edit_list_start_encountered == 0) {\n\n num_discarded_begin++;\n\n frame_duration_buffer = av_realloc(frame_duration_buffer,\n\n num_discarded_begin * sizeof(int64_t));\n\n if (!frame_duration_buffer) {\n\n av_log(mov->fc, AV_LOG_ERROR, \"Cannot reallocate frame duration buffer\\n\");\n\n break;\n\n }\n\n frame_duration_buffer[num_discarded_begin - 1] = frame_duration;\n\n\n\n // Increment skip_samples for the first non-zero audio edit list\n\n if (first_non_zero_audio_edit > 0 && st->codecpar->codec_id != AV_CODEC_ID_VORBIS) {\n\n st->skip_samples += frame_duration;\n\n }\n\n }\n\n }\n\n } else {\n\n if (min_corrected_pts < 0) {\n\n min_corrected_pts = edit_list_dts_counter + curr_ctts + msc->dts_shift;\n\n } else {\n\n min_corrected_pts = FFMIN(min_corrected_pts, edit_list_dts_counter + curr_ctts + msc->dts_shift);\n\n }\n\n if (edit_list_start_encountered == 0) {\n\n edit_list_start_encountered = 1;\n\n // Make timestamps strictly monotonically increasing for audio, by rewriting timestamps for\n\n // discarded packets.\n\n if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && frame_duration_buffer) {\n\n fix_index_entry_timestamps(st, st->nb_index_entries, edit_list_dts_counter,\n\n frame_duration_buffer, num_discarded_begin);\n\n\n }\n\n }\n\n }\n\n\n\n if (add_index_entry(st, current->pos, edit_list_dts_counter, current->size,\n\n current->min_distance, flags) == -1) {\n\n av_log(mov->fc, AV_LOG_ERROR, \"Cannot add index entry\\n\");\n\n break;\n\n }\n\n\n\n // Update the index ranges array\n\n if (current_index_range < msc->index_ranges || index != current_index_range->end) {\n\n current_index_range++;\n\n current_index_range->start = index;\n\n }\n\n current_index_range->end = index + 1;\n\n\n\n // Only start incrementing DTS in frame_duration amounts, when we encounter a frame in edit list.\n\n if (edit_list_start_encountered > 0) {\n\n edit_list_dts_counter = edit_list_dts_counter + frame_duration;\n\n }\n\n\n\n // Break when found first key frame after edit entry completion\n\n if ((curr_cts + frame_duration >= (edit_list_duration + edit_list_media_time)) &&\n\n ((flags & AVINDEX_KEYFRAME) || ((st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)))) {\n\n if (ctts_data_old) {\n\n // If we have CTTS and this is the the first keyframe after edit elist,\n\n // wait for one more, because there might be trailing B-frames after this I-frame\n\n // that do belong to the edit.\n\n if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO && found_keyframe_after_edit == 0) {\n\n found_keyframe_after_edit = 1;\n\n continue;\n\n }\n\n if (ctts_sample_old != 0) {\n\n if (add_ctts_entry(&msc->ctts_data, &msc->ctts_count,\n\n &msc->ctts_allocated_size,\n\n ctts_sample_old - edit_list_start_ctts_sample,\n\n ctts_data_old[ctts_index_old].duration) == -1) {\n\n av_log(mov->fc, AV_LOG_ERROR, \"Cannot add CTTS entry %\"PRId64\" - {%\"PRId64\", %d}\\n\",\n\n ctts_index_old, ctts_sample_old - edit_list_start_ctts_sample,\n\n ctts_data_old[ctts_index_old].duration);\n\n break;\n\n }\n\n }\n\n }\n\n break;\n\n }\n\n }\n\n }\n\n // If there are empty edits, then min_corrected_pts might be positive intentionally. So we subtract the\n\n // sum duration of emtpy edits here.\n\n min_corrected_pts -= empty_edits_sum_duration;\n\n\n\n // If the minimum pts turns out to be greater than zero after fixing the index, then we subtract the\n\n // dts by that amount to make the first pts zero.\n\n if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && min_corrected_pts > 0) {\n\n av_log(mov->fc, AV_LOG_DEBUG, \"Offset DTS by %\"PRId64\" to make first pts zero.\\n\", min_corrected_pts);\n\n for (i = 0; i < st->nb_index_entries; ++i) {\n\n st->index_entries[i].timestamp -= min_corrected_pts;\n\n }\n\n }\n\n\n\n // Update av stream length\n\n st->duration = edit_list_dts_entry_end - start_dts;\n\n msc->start_pad = st->skip_samples;\n\n\n\n // Free the old index and the old CTTS structures\n\n av_free(e_old);\n\n av_free(ctts_data_old);\n\n\n\n\n // Null terminate the index ranges array\n\n current_index_range++;\n\n current_index_range->start = 0;\n\n current_index_range->end = 0;\n\n msc->current_index = msc->index_ranges[0].start;\n\n}", + "output": "1", + "index": 3694 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void *spapr_create_fdt_skel(hwaddr initrd_base,\n\n hwaddr initrd_size,\n\n hwaddr kernel_size,\n\n bool little_endian,\n\n const char *kernel_cmdline,\n\n uint32_t epow_irq)\n\n{\n\n void *fdt;\n\n uint32_t start_prop = cpu_to_be32(initrd_base);\n\n uint32_t end_prop = cpu_to_be32(initrd_base + initrd_size);\n\n GString *hypertas = g_string_sized_new(256);\n\n GString *qemu_hypertas = g_string_sized_new(256);\n\n uint32_t refpoints[] = {cpu_to_be32(0x4), cpu_to_be32(0x4)};\n\n uint32_t interrupt_server_ranges_prop[] = {0, cpu_to_be32(max_cpus)};\n\n unsigned char vec5[] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x80};\n\n char *buf;\n\n\n\n add_str(hypertas, \"hcall-pft\");\n\n add_str(hypertas, \"hcall-term\");\n\n add_str(hypertas, \"hcall-dabr\");\n\n add_str(hypertas, \"hcall-interrupt\");\n\n add_str(hypertas, \"hcall-tce\");\n\n add_str(hypertas, \"hcall-vio\");\n\n add_str(hypertas, \"hcall-splpar\");\n\n add_str(hypertas, \"hcall-bulk\");\n\n add_str(hypertas, \"hcall-set-mode\");\n\n add_str(qemu_hypertas, \"hcall-memop1\");\n\n\n\n fdt = g_malloc0(FDT_MAX_SIZE);\n\n _FDT((fdt_create(fdt, FDT_MAX_SIZE)));\n\n\n\n if (kernel_size) {\n\n _FDT((fdt_add_reservemap_entry(fdt, KERNEL_LOAD_ADDR, kernel_size)));\n\n }\n\n if (initrd_size) {\n\n _FDT((fdt_add_reservemap_entry(fdt, initrd_base, initrd_size)));\n\n }\n\n _FDT((fdt_finish_reservemap(fdt)));\n\n\n\n /* Root node */\n\n _FDT((fdt_begin_node(fdt, \"\")));\n\n _FDT((fdt_property_string(fdt, \"device_type\", \"chrp\")));\n\n _FDT((fdt_property_string(fdt, \"model\", \"IBM pSeries (emulated by qemu)\")));\n\n _FDT((fdt_property_string(fdt, \"compatible\", \"qemu,pseries\")));\n\n\n\n /*\n\n * Add info to guest to indentify which host is it being run on\n\n * and what is the uuid of the guest\n\n */\n\n if (kvmppc_get_host_model(&buf)) {\n\n _FDT((fdt_property_string(fdt, \"host-model\", buf)));\n\n g_free(buf);\n\n }\n\n if (kvmppc_get_host_serial(&buf)) {\n\n _FDT((fdt_property_string(fdt, \"host-serial\", buf)));\n\n g_free(buf);\n\n }\n\n\n\n buf = g_strdup_printf(UUID_FMT, qemu_uuid[0], qemu_uuid[1],\n\n qemu_uuid[2], qemu_uuid[3], qemu_uuid[4],\n\n qemu_uuid[5], qemu_uuid[6], qemu_uuid[7],\n\n qemu_uuid[8], qemu_uuid[9], qemu_uuid[10],\n\n qemu_uuid[11], qemu_uuid[12], qemu_uuid[13],\n\n qemu_uuid[14], qemu_uuid[15]);\n\n\n\n _FDT((fdt_property_string(fdt, \"vm,uuid\", buf)));\n\n if (qemu_uuid_set) {\n\n _FDT((fdt_property_string(fdt, \"system-id\", buf)));\n\n }\n\n g_free(buf);\n\n\n\n if (qemu_get_vm_name()) {\n\n _FDT((fdt_property_string(fdt, \"ibm,partition-name\",\n\n qemu_get_vm_name())));\n\n }\n\n\n\n _FDT((fdt_property_cell(fdt, \"#address-cells\", 0x2)));\n\n _FDT((fdt_property_cell(fdt, \"#size-cells\", 0x2)));\n\n\n\n /* /chosen */\n\n _FDT((fdt_begin_node(fdt, \"chosen\")));\n\n\n\n /* Set Form1_affinity */\n\n _FDT((fdt_property(fdt, \"ibm,architecture-vec-5\", vec5, sizeof(vec5))));\n\n\n\n _FDT((fdt_property_string(fdt, \"bootargs\", kernel_cmdline)));\n\n _FDT((fdt_property(fdt, \"linux,initrd-start\",\n\n &start_prop, sizeof(start_prop))));\n\n _FDT((fdt_property(fdt, \"linux,initrd-end\",\n\n &end_prop, sizeof(end_prop))));\n\n if (kernel_size) {\n\n uint64_t kprop[2] = { cpu_to_be64(KERNEL_LOAD_ADDR),\n\n cpu_to_be64(kernel_size) };\n\n\n\n _FDT((fdt_property(fdt, \"qemu,boot-kernel\", &kprop, sizeof(kprop))));\n\n if (little_endian) {\n\n _FDT((fdt_property(fdt, \"qemu,boot-kernel-le\", NULL, 0)));\n\n }\n\n }\n\n if (boot_menu) {\n\n _FDT((fdt_property_cell(fdt, \"qemu,boot-menu\", boot_menu)));\n\n }\n\n _FDT((fdt_property_cell(fdt, \"qemu,graphic-width\", graphic_width)));\n\n _FDT((fdt_property_cell(fdt, \"qemu,graphic-height\", graphic_height)));\n\n _FDT((fdt_property_cell(fdt, \"qemu,graphic-depth\", graphic_depth)));\n\n\n\n _FDT((fdt_end_node(fdt)));\n\n\n\n /* RTAS */\n\n _FDT((fdt_begin_node(fdt, \"rtas\")));\n\n\n\n if (!kvm_enabled() || kvmppc_spapr_use_multitce()) {\n\n add_str(hypertas, \"hcall-multi-tce\");\n\n }\n\n _FDT((fdt_property(fdt, \"ibm,hypertas-functions\", hypertas->str,\n\n hypertas->len)));\n\n g_string_free(hypertas, TRUE);\n\n _FDT((fdt_property(fdt, \"qemu,hypertas-functions\", qemu_hypertas->str,\n\n qemu_hypertas->len)));\n\n g_string_free(qemu_hypertas, TRUE);\n\n\n\n _FDT((fdt_property(fdt, \"ibm,associativity-reference-points\",\n\n refpoints, sizeof(refpoints))));\n\n\n\n _FDT((fdt_property_cell(fdt, \"rtas-error-log-max\", RTAS_ERROR_LOG_MAX)));\n\n _FDT((fdt_property_cell(fdt, \"rtas-event-scan-rate\",\n\n RTAS_EVENT_SCAN_RATE)));\n\n\n\n if (msi_nonbroken) {\n\n _FDT((fdt_property(fdt, \"ibm,change-msix-capable\", NULL, 0)));\n\n }\n\n\n\n /*\n\n * According to PAPR, rtas ibm,os-term does not guarantee a return\n\n * back to the guest cpu.\n\n *\n\n * While an additional ibm,extended-os-term property indicates that\n\n * rtas call return will always occur. Set this property.\n\n */\n\n _FDT((fdt_property(fdt, \"ibm,extended-os-term\", NULL, 0)));\n\n\n\n _FDT((fdt_end_node(fdt)));\n\n\n\n /* interrupt controller */\n\n _FDT((fdt_begin_node(fdt, \"interrupt-controller\")));\n\n\n\n _FDT((fdt_property_string(fdt, \"device_type\",\n\n \"PowerPC-External-Interrupt-Presentation\")));\n\n _FDT((fdt_property_string(fdt, \"compatible\", \"IBM,ppc-xicp\")));\n\n _FDT((fdt_property(fdt, \"interrupt-controller\", NULL, 0)));\n\n _FDT((fdt_property(fdt, \"ibm,interrupt-server-ranges\",\n\n interrupt_server_ranges_prop,\n\n sizeof(interrupt_server_ranges_prop))));\n\n _FDT((fdt_property_cell(fdt, \"#interrupt-cells\", 2)));\n\n _FDT((fdt_property_cell(fdt, \"linux,phandle\", PHANDLE_XICP)));\n\n _FDT((fdt_property_cell(fdt, \"phandle\", PHANDLE_XICP)));\n\n\n\n _FDT((fdt_end_node(fdt)));\n\n\n\n /* vdevice */\n\n _FDT((fdt_begin_node(fdt, \"vdevice\")));\n\n\n\n _FDT((fdt_property_string(fdt, \"device_type\", \"vdevice\")));\n\n _FDT((fdt_property_string(fdt, \"compatible\", \"IBM,vdevice\")));\n\n _FDT((fdt_property_cell(fdt, \"#address-cells\", 0x1)));\n\n _FDT((fdt_property_cell(fdt, \"#size-cells\", 0x0)));\n\n _FDT((fdt_property_cell(fdt, \"#interrupt-cells\", 0x2)));\n\n _FDT((fdt_property(fdt, \"interrupt-controller\", NULL, 0)));\n\n\n\n _FDT((fdt_end_node(fdt)));\n\n\n\n /* event-sources */\n\n spapr_events_fdt_skel(fdt, epow_irq);\n\n\n\n /* /hypervisor node */\n\n if (kvm_enabled()) {\n\n uint8_t hypercall[16];\n\n\n\n /* indicate KVM hypercall interface */\n\n _FDT((fdt_begin_node(fdt, \"hypervisor\")));\n\n _FDT((fdt_property_string(fdt, \"compatible\", \"linux,kvm\")));\n\n if (kvmppc_has_cap_fixup_hcalls()) {\n\n /*\n\n * Older KVM versions with older guest kernels were broken with the\n\n * magic page, don't allow the guest to map it.\n\n */\n\n kvmppc_get_hypercall(first_cpu->env_ptr, hypercall,\n\n sizeof(hypercall));\n\n _FDT((fdt_property(fdt, \"hcall-instructions\", hypercall,\n\n sizeof(hypercall))));\n\n }\n\n _FDT((fdt_end_node(fdt)));\n\n }\n\n\n\n _FDT((fdt_end_node(fdt))); /* close root node */\n\n _FDT((fdt_finish(fdt)));\n\n\n\n return fdt;\n\n}\n", + "output": "1", + "index": 17186 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int decode_frame(AVCodecContext *avctx,\n\n void *data,\n\n int *got_frame,\n\n AVPacket *avpkt)\n\n{\n\n const uint8_t *buf = avpkt->data;\n\n unsigned int buf_size = avpkt->size;\n\n const uint8_t *buf_end = buf + buf_size;\n\n\n\n const AVPixFmtDescriptor *desc;\n\n EXRContext *const s = avctx->priv_data;\n\n AVFrame *picture = data;\n\n AVFrame *const p = &s->picture;\n\n uint8_t *ptr;\n\n\n\n int i, x, y, stride, magic_number, version, flags, ret;\n\n int w = 0;\n\n int h = 0;\n\n unsigned int xmin = ~0;\n\n unsigned int xmax = ~0;\n\n unsigned int ymin = ~0;\n\n unsigned int ymax = ~0;\n\n unsigned int xdelta = ~0;\n\n\n\n int out_line_size;\n\n int bxmin, axmax;\n\n int scan_lines_per_block;\n\n unsigned long scan_line_size;\n\n unsigned long uncompressed_size;\n\n\n\n unsigned int current_channel_offset = 0;\n\n\n\n s->channel_offsets[0] = -1;\n\n s->channel_offsets[1] = -1;\n\n s->channel_offsets[2] = -1;\n\n s->channel_offsets[3] = -1;\n\n s->bits_per_color_id = -1;\n\n s->compr = -1;\n\n\n\n if (buf_size < 10) {\n\n av_log(avctx, AV_LOG_ERROR, \"Too short header to parse\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n magic_number = bytestream_get_le32(&buf);\n\n if (magic_number != 20000630) { // As per documentation of OpenEXR it's supposed to be int 20000630 little-endian\n\n av_log(avctx, AV_LOG_ERROR, \"Wrong magic number %d\\n\", magic_number);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n version = bytestream_get_byte(&buf);\n\n if (version != 2) {\n\n av_log(avctx, AV_LOG_ERROR, \"Unsupported version %d\\n\", version);\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n\n\n flags = bytestream_get_le24(&buf);\n\n if (flags & 0x2) {\n\n av_log(avctx, AV_LOG_ERROR, \"Tile based images are not supported\\n\");\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n\n\n // Parse the header\n\n while (buf < buf_end && buf[0]) {\n\n unsigned int variable_buffer_data_size;\n\n // Process the channel list\n\n if (check_header_variable(avctx, &buf, buf_end, \"channels\", \"chlist\", 38, &variable_buffer_data_size) >= 0) {\n\n const uint8_t *channel_list_end;\n\n if (!variable_buffer_data_size)\n\n return AVERROR_INVALIDDATA;\n\n\n\n channel_list_end = buf + variable_buffer_data_size;\n\n while (channel_list_end - buf >= 19) {\n\n int current_bits_per_color_id = -1;\n\n int channel_index = -1;\n\n\n\n if (!strcmp(buf, \"R\"))\n\n channel_index = 0;\n\n else if (!strcmp(buf, \"G\"))\n\n channel_index = 1;\n\n else if (!strcmp(buf, \"B\"))\n\n channel_index = 2;\n\n else if (!strcmp(buf, \"A\"))\n\n channel_index = 3;\n\n else\n\n av_log(avctx, AV_LOG_WARNING, \"Unsupported channel %.256s\\n\", buf);\n\n\n\n while (bytestream_get_byte(&buf) && buf < channel_list_end)\n\n continue; /* skip */\n\n\n\n if (channel_list_end - * &buf < 4) {\n\n av_log(avctx, AV_LOG_ERROR, \"Incomplete header\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n current_bits_per_color_id = bytestream_get_le32(&buf);\n\n if (current_bits_per_color_id > 2) {\n\n av_log(avctx, AV_LOG_ERROR, \"Unknown color format\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n if (channel_index >= 0) {\n\n if (s->bits_per_color_id != -1 && s->bits_per_color_id != current_bits_per_color_id) {\n\n av_log(avctx, AV_LOG_ERROR, \"RGB channels not of the same depth\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n s->bits_per_color_id = current_bits_per_color_id;\n\n s->channel_offsets[channel_index] = current_channel_offset;\n\n }\n\n\n\n current_channel_offset += 1 << current_bits_per_color_id;\n\n buf += 12;\n\n }\n\n\n\n /* Check if all channels are set with an offset or if the channels\n\n * are causing an overflow */\n\n\n\n if (FFMIN3(s->channel_offsets[0],\n\n s->channel_offsets[1],\n\n s->channel_offsets[2]) < 0) {\n\n if (s->channel_offsets[0] < 0)\n\n av_log(avctx, AV_LOG_ERROR, \"Missing red channel\\n\");\n\n if (s->channel_offsets[1] < 0)\n\n av_log(avctx, AV_LOG_ERROR, \"Missing green channel\\n\");\n\n if (s->channel_offsets[2] < 0)\n\n av_log(avctx, AV_LOG_ERROR, \"Missing blue channel\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n buf = channel_list_end;\n\n continue;\n\n } else if (check_header_variable(avctx, &buf, buf_end, \"dataWindow\", \"box2i\", 31, &variable_buffer_data_size) >= 0) {\n\n if (!variable_buffer_data_size)\n\n return AVERROR_INVALIDDATA;\n\n\n\n xmin = AV_RL32(buf);\n\n ymin = AV_RL32(buf + 4);\n\n xmax = AV_RL32(buf + 8);\n\n ymax = AV_RL32(buf + 12);\n\n xdelta = (xmax-xmin) + 1;\n\n\n\n buf += variable_buffer_data_size;\n\n continue;\n\n } else if (check_header_variable(avctx, &buf, buf_end, \"displayWindow\", \"box2i\", 34, &variable_buffer_data_size) >= 0) {\n\n if (!variable_buffer_data_size)\n\n return AVERROR_INVALIDDATA;\n\n\n\n w = AV_RL32(buf + 8) + 1;\n\n h = AV_RL32(buf + 12) + 1;\n\n\n\n buf += variable_buffer_data_size;\n\n continue;\n\n } else if (check_header_variable(avctx, &buf, buf_end, \"lineOrder\", \"lineOrder\", 25, &variable_buffer_data_size) >= 0) {\n\n if (!variable_buffer_data_size)\n\n return AVERROR_INVALIDDATA;\n\n\n\n if (*buf) {\n\n av_log(avctx, AV_LOG_ERROR, \"Doesn't support this line order : %d\\n\", *buf);\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n\n\n buf += variable_buffer_data_size;\n\n continue;\n\n } else if (check_header_variable(avctx, &buf, buf_end, \"pixelAspectRatio\", \"float\", 31, &variable_buffer_data_size) >= 0) {\n\n if (!variable_buffer_data_size)\n\n return AVERROR_INVALIDDATA;\n\n\n\n avctx->sample_aspect_ratio = av_d2q(av_int2float(AV_RL32(buf)), 255);\n\n\n\n buf += variable_buffer_data_size;\n\n continue;\n\n } else if (check_header_variable(avctx, &buf, buf_end, \"compression\", \"compression\", 29, &variable_buffer_data_size) >= 0) {\n\n if (!variable_buffer_data_size)\n\n return AVERROR_INVALIDDATA;\n\n\n\n if (s->compr == -1)\n\n s->compr = *buf;\n\n else\n\n av_log(avctx, AV_LOG_WARNING, \"Found more than one compression attribute\\n\");\n\n\n\n buf += variable_buffer_data_size;\n\n continue;\n\n }\n\n\n\n // Check if there is enough bytes for a header\n\n if (buf_end - buf <= 9) {\n\n av_log(avctx, AV_LOG_ERROR, \"Incomplete header\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n // Process unknown variables\n\n for (i = 0; i < 2; i++) {\n\n // Skip variable name/type\n\n while (++buf < buf_end)\n\n if (buf[0] == 0x0)\n\n break;\n\n }\n\n buf++;\n\n // Skip variable length\n\n if (buf_end - buf >= 5) {\n\n variable_buffer_data_size = get_header_variable_length(&buf, buf_end);\n\n if (!variable_buffer_data_size) {\n\n av_log(avctx, AV_LOG_ERROR, \"Incomplete header\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n buf += variable_buffer_data_size;\n\n }\n\n }\n\n\n\n if (s->compr == -1) {\n\n av_log(avctx, AV_LOG_ERROR, \"Missing compression attribute\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n if (buf >= buf_end) {\n\n av_log(avctx, AV_LOG_ERROR, \"Incomplete frame\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n buf++;\n\n\n\n switch (s->bits_per_color_id) {\n\n case 2: // 32-bit\n\n case 1: // 16-bit\n\n if (s->channel_offsets[3] >= 0)\n\n avctx->pix_fmt = AV_PIX_FMT_RGBA64;\n\n else\n\n avctx->pix_fmt = AV_PIX_FMT_RGB48;\n\n break;\n\n // 8-bit\n\n case 0:\n\n av_log_missing_feature(avctx, \"8-bit OpenEXR\", 1);\n\n return AVERROR_PATCHWELCOME;\n\n default:\n\n av_log(avctx, AV_LOG_ERROR, \"Unknown color format : %d\\n\", s->bits_per_color_id);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n switch (s->compr) {\n\n case EXR_RAW:\n\n case EXR_RLE:\n\n case EXR_ZIP1:\n\n scan_lines_per_block = 1;\n\n break;\n\n case EXR_ZIP16:\n\n scan_lines_per_block = 16;\n\n break;\n\n default:\n\n av_log(avctx, AV_LOG_ERROR, \"Compression type %d is not supported\\n\", s->compr);\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n\n\n if (s->picture.data[0])\n\n ff_thread_release_buffer(avctx, &s->picture);\n\n if (av_image_check_size(w, h, 0, avctx))\n\n return AVERROR_INVALIDDATA;\n\n\n\n // Verify the xmin, xmax, ymin, ymax and xdelta before setting the actual image size\n\n if (xmin > xmax || ymin > ymax || xdelta != xmax - xmin + 1 || xmax >= w || ymax >= h) {\n\n av_log(avctx, AV_LOG_ERROR, \"Wrong sizing or missing size information\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n if (w != avctx->width || h != avctx->height) {\n\n avcodec_set_dimensions(avctx, w, h);\n\n }\n\n\n\n desc = av_pix_fmt_desc_get(avctx->pix_fmt);\n\n bxmin = xmin * 2 * desc->nb_components;\n\n axmax = (avctx->width - (xmax + 1)) * 2 * desc->nb_components;\n\n out_line_size = avctx->width * 2 * desc->nb_components;\n\n scan_line_size = xdelta * current_channel_offset;\n\n uncompressed_size = scan_line_size * scan_lines_per_block;\n\n\n\n if (s->compr != EXR_RAW) {\n\n av_fast_padded_malloc(&s->uncompressed_data, &s->uncompressed_size, uncompressed_size);\n\n av_fast_padded_malloc(&s->tmp, &s->tmp_size, uncompressed_size);\n\n if (!s->uncompressed_data || !s->tmp)\n\n return AVERROR(ENOMEM);\n\n }\n\n\n\n if ((ret = ff_thread_get_buffer(avctx, p)) < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"get_buffer() failed\\n\");\n\n return ret;\n\n }\n\n\n\n ptr = p->data[0];\n\n stride = p->linesize[0];\n\n\n\n // Zero out the start if ymin is not 0\n\n for (y = 0; y < ymin; y++) {\n\n memset(ptr, 0, out_line_size);\n\n ptr += stride;\n\n }\n\n\n\n // Process the actual scan line blocks\n\n for (y = ymin; y <= ymax; y += scan_lines_per_block) {\n\n uint16_t *ptr_x = (uint16_t *)ptr;\n\n if (buf_end - buf > 8) {\n\n /* Read the lineoffset from the line offset table and add 8 bytes\n\n to skip the coordinates and data size fields */\n\n const uint64_t line_offset = bytestream_get_le64(&buf) + 8;\n\n int32_t data_size;\n\n\n\n // Check if the buffer has the required bytes needed from the offset\n\n if ((line_offset > buf_size) ||\n\n (s->compr == EXR_RAW && line_offset > avpkt->size - xdelta * current_channel_offset) ||\n\n (s->compr != EXR_RAW && line_offset > buf_size - (data_size = AV_RL32(avpkt->data + line_offset - 4)))) {\n\n // Line offset is probably wrong and not inside the buffer\n\n av_log(avctx, AV_LOG_WARNING, \"Line offset for line %d is out of reach setting it to black\\n\", y);\n\n for (i = 0; i < scan_lines_per_block && y + i <= ymax; i++, ptr += stride) {\n\n ptr_x = (uint16_t *)ptr;\n\n memset(ptr_x, 0, out_line_size);\n\n }\n\n } else {\n\n const uint8_t *red_channel_buffer, *green_channel_buffer, *blue_channel_buffer, *alpha_channel_buffer = 0;\n\n\n\n if (scan_lines_per_block > 1)\n\n uncompressed_size = scan_line_size * FFMIN(scan_lines_per_block, ymax - y + 1);\n\n if ((s->compr == EXR_ZIP1 || s->compr == EXR_ZIP16) && data_size < uncompressed_size) {\n\n unsigned long dest_len = uncompressed_size;\n\n\n\n if (uncompress(s->tmp, &dest_len, avpkt->data + line_offset, data_size) != Z_OK ||\n\n dest_len != uncompressed_size) {\n\n av_log(avctx, AV_LOG_ERROR, \"error during zlib decompression\\n\");\n\n return AVERROR(EINVAL);\n\n }\n\n } else if (s->compr == EXR_RLE && data_size < uncompressed_size) {\n\n if (rle_uncompress(avpkt->data + line_offset, data_size, s->tmp, uncompressed_size)) {\n\n av_log(avctx, AV_LOG_ERROR, \"error during rle decompression\\n\");\n\n return AVERROR(EINVAL);\n\n }\n\n }\n\n\n\n if (s->compr != EXR_RAW && data_size < uncompressed_size) {\n\n predictor(s->tmp, uncompressed_size);\n\n reorder_pixels(s->tmp, s->uncompressed_data, uncompressed_size);\n\n\n\n red_channel_buffer = s->uncompressed_data + xdelta * s->channel_offsets[0];\n\n green_channel_buffer = s->uncompressed_data + xdelta * s->channel_offsets[1];\n\n blue_channel_buffer = s->uncompressed_data + xdelta * s->channel_offsets[2];\n\n if (s->channel_offsets[3] >= 0)\n\n alpha_channel_buffer = s->uncompressed_data + xdelta * s->channel_offsets[3];\n\n } else {\n\n red_channel_buffer = avpkt->data + line_offset + xdelta * s->channel_offsets[0];\n\n green_channel_buffer = avpkt->data + line_offset + xdelta * s->channel_offsets[1];\n\n blue_channel_buffer = avpkt->data + line_offset + xdelta * s->channel_offsets[2];\n\n if (s->channel_offsets[3] >= 0)\n\n alpha_channel_buffer = avpkt->data + line_offset + xdelta * s->channel_offsets[3];\n\n }\n\n\n\n for (i = 0; i < scan_lines_per_block && y + i <= ymax; i++, ptr += stride) {\n\n const uint8_t *r, *g, *b, *a;\n\n\n\n r = red_channel_buffer;\n\n g = green_channel_buffer;\n\n b = blue_channel_buffer;\n\n if (alpha_channel_buffer)\n\n a = alpha_channel_buffer;\n\n\n\n ptr_x = (uint16_t *)ptr;\n\n\n\n // Zero out the start if xmin is not 0\n\n memset(ptr_x, 0, bxmin);\n\n ptr_x += xmin * desc->nb_components;\n\n if (s->bits_per_color_id == 2) {\n\n // 32-bit\n\n for (x = 0; x < xdelta; x++) {\n\n *ptr_x++ = exr_flt2uint(bytestream_get_le32(&r));\n\n *ptr_x++ = exr_flt2uint(bytestream_get_le32(&g));\n\n *ptr_x++ = exr_flt2uint(bytestream_get_le32(&b));\n\n if (alpha_channel_buffer)\n\n *ptr_x++ = exr_flt2uint(bytestream_get_le32(&a));\n\n }\n\n } else {\n\n // 16-bit\n\n for (x = 0; x < xdelta; x++) {\n\n *ptr_x++ = exr_halflt2uint(bytestream_get_le16(&r));\n\n *ptr_x++ = exr_halflt2uint(bytestream_get_le16(&g));\n\n *ptr_x++ = exr_halflt2uint(bytestream_get_le16(&b));\n\n if (alpha_channel_buffer)\n\n *ptr_x++ = exr_halflt2uint(bytestream_get_le16(&a));\n\n }\n\n }\n\n\n\n // Zero out the end if xmax+1 is not w\n\n memset(ptr_x, 0, axmax);\n\n\n\n red_channel_buffer += scan_line_size;\n\n green_channel_buffer += scan_line_size;\n\n blue_channel_buffer += scan_line_size;\n\n if (alpha_channel_buffer)\n\n alpha_channel_buffer += scan_line_size;\n\n }\n\n }\n\n }\n\n }\n\n\n\n // Zero out the end if ymax+1 is not h\n\n for (y = ymax + 1; y < avctx->height; y++) {\n\n memset(ptr, 0, out_line_size);\n\n ptr += stride;\n\n }\n\n\n\n *picture = s->picture;\n\n *got_frame = 1;\n\n\n\n return buf_size;\n\n}\n", + "output": "1", + "index": 10842 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void OPLWriteReg(FM_OPL *OPL, int r, int v)\n\n{\n\n\tOPL_CH *CH;\n\n\tint slot;\n\n\tint block_fnum;\n\n\n\n\tswitch(r&0xe0)\n\n\t{\n\n\tcase 0x00: /* 00-1f:control */\n\n\t\tswitch(r&0x1f)\n\n\t\t{\n\n\t\tcase 0x01:\n\n\t\t\t/* wave selector enable */\n\n\t\t\tif(OPL->type&OPL_TYPE_WAVESEL)\n\n\t\t\t{\n\n\t\t\t\tOPL->wavesel = v&0x20;\n\n\t\t\t\tif(!OPL->wavesel)\n\n\t\t\t\t{\n\n\t\t\t\t\t/* preset compatible mode */\n\n\t\t\t\t\tint c;\n\n\t\t\t\t\tfor(c=0;cmax_ch;c++)\n\n\t\t\t\t\t{\n\n\t\t\t\t\t\tOPL->P_CH[c].SLOT[SLOT1].wavetable = &SIN_TABLE[0];\n\n\t\t\t\t\t\tOPL->P_CH[c].SLOT[SLOT2].wavetable = &SIN_TABLE[0];\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn;\n\n\t\tcase 0x02:\t/* Timer 1 */\n\n\t\t\tOPL->T[0] = (256-v)*4;\n\n\t\t\tbreak;\n\n\t\tcase 0x03:\t/* Timer 2 */\n\n\t\t\tOPL->T[1] = (256-v)*16;\n\n\t\t\treturn;\n\n\t\tcase 0x04:\t/* IRQ clear / mask and Timer enable */\n\n\t\t\tif(v&0x80)\n\n\t\t\t{\t/* IRQ flag clear */\n\n\t\t\t\tOPL_STATUS_RESET(OPL,0x7f);\n\n\t\t\t}\n\n\t\t\telse\n\n\t\t\t{\t/* set IRQ mask ,timer enable*/\n\n\t\t\t\tUINT8 st1 = v&1;\n\n\t\t\t\tUINT8 st2 = (v>>1)&1;\n\n\t\t\t\t/* IRQRST,T1MSK,t2MSK,EOSMSK,BRMSK,x,ST2,ST1 */\n\n\t\t\t\tOPL_STATUS_RESET(OPL,v&0x78);\n\n\t\t\t\tOPL_STATUSMASK_SET(OPL,((~v)&0x78)|0x01);\n\n\t\t\t\t/* timer 2 */\n\n\t\t\t\tif(OPL->st[1] != st2)\n\n\t\t\t\t{\n\n\t\t\t\t\tdouble interval = st2 ? (double)OPL->T[1]*OPL->TimerBase : 0.0;\n\n\t\t\t\t\tOPL->st[1] = st2;\n\n\t\t\t\t\tif (OPL->TimerHandler) (OPL->TimerHandler)(OPL->TimerParam+1,interval);\n\n\t\t\t\t}\n\n\t\t\t\t/* timer 1 */\n\n\t\t\t\tif(OPL->st[0] != st1)\n\n\t\t\t\t{\n\n\t\t\t\t\tdouble interval = st1 ? (double)OPL->T[0]*OPL->TimerBase : 0.0;\n\n\t\t\t\t\tOPL->st[0] = st1;\n\n\t\t\t\t\tif (OPL->TimerHandler) (OPL->TimerHandler)(OPL->TimerParam+0,interval);\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn;\n\n#if BUILD_Y8950\n\n\t\tcase 0x06:\t\t/* Key Board OUT */\n\n\t\t\tif(OPL->type&OPL_TYPE_KEYBOARD)\n\n\t\t\t{\n\n\t\t\t\tif(OPL->keyboardhandler_w)\n\n\t\t\t\t\tOPL->keyboardhandler_w(OPL->keyboard_param,v);\n\n\t\t\t\telse\n\n\t\t\t\t\tLOG(LOG_WAR,(\"OPL:write unmapped KEYBOARD port\\n\"));\n\n\t\t\t}\n\n\t\t\treturn;\n\n\t\tcase 0x07:\t/* DELTA-T control : START,REC,MEMDATA,REPT,SPOFF,x,x,RST */\n\n\t\t\tif(OPL->type&OPL_TYPE_ADPCM)\n\n\t\t\t\tYM_DELTAT_ADPCM_Write(OPL->deltat,r-0x07,v);\n\n\t\t\treturn;\n\n\t\tcase 0x08:\t/* MODE,DELTA-T : CSM,NOTESEL,x,x,smpl,da/ad,64k,rom */\n\n\t\t\tOPL->mode = v;\n\n\t\t\tv&=0x1f;\t/* for DELTA-T unit */\n\n\t\tcase 0x09:\t\t/* START ADD */\n\n\t\tcase 0x0a:\n\n\t\tcase 0x0b:\t\t/* STOP ADD */\n\n\t\tcase 0x0c:\n\n\t\tcase 0x0d:\t\t/* PRESCALE */\n\n\t\tcase 0x0e:\n\n\t\tcase 0x0f:\t\t/* ADPCM data */\n\n\t\tcase 0x10: \t\t/* DELTA-N */\n\n\t\tcase 0x11: \t\t/* DELTA-N */\n\n\t\tcase 0x12: \t\t/* EG-CTRL */\n\n\t\t\tif(OPL->type&OPL_TYPE_ADPCM)\n\n\t\t\t\tYM_DELTAT_ADPCM_Write(OPL->deltat,r-0x07,v);\n\n\t\t\treturn;\n\n#if 0\n\n\t\tcase 0x15:\t\t/* DAC data */\n\n\t\tcase 0x16:\n\n\t\tcase 0x17:\t\t/* SHIFT */\n\n\t\t\treturn;\n\n\t\tcase 0x18:\t\t/* I/O CTRL (Direction) */\n\n\t\t\tif(OPL->type&OPL_TYPE_IO)\n\n\t\t\t\tOPL->portDirection = v&0x0f;\n\n\t\t\treturn;\n\n\t\tcase 0x19:\t\t/* I/O DATA */\n\n\t\t\tif(OPL->type&OPL_TYPE_IO)\n\n\t\t\t{\n\n\t\t\t\tOPL->portLatch = v;\n\n\t\t\t\tif(OPL->porthandler_w)\n\n\t\t\t\t\tOPL->porthandler_w(OPL->port_param,v&OPL->portDirection);\n\n\t\t\t}\n\n\t\t\treturn;\n\n\t\tcase 0x1a:\t\t/* PCM data */\n\n\t\t\treturn;\n\n#endif\n\n#endif\n\n\t\t}\n\n\t\tbreak;\n\n\tcase 0x20:\t/* am,vib,ksr,eg type,mul */\n\n\t\tslot = slot_array[r&0x1f];\n\n\t\tif(slot == -1) return;\n\n\t\tset_mul(OPL,slot,v);\n\n\t\treturn;\n\n\tcase 0x40:\n\n\t\tslot = slot_array[r&0x1f];\n\n\t\tif(slot == -1) return;\n\n\t\tset_ksl_tl(OPL,slot,v);\n\n\t\treturn;\n\n\tcase 0x60:\n\n\t\tslot = slot_array[r&0x1f];\n\n\t\tif(slot == -1) return;\n\n\t\tset_ar_dr(OPL,slot,v);\n\n\t\treturn;\n\n\tcase 0x80:\n\n\t\tslot = slot_array[r&0x1f];\n\n\t\tif(slot == -1) return;\n\n\t\tset_sl_rr(OPL,slot,v);\n\n\t\treturn;\n\n\tcase 0xa0:\n\n\t\tswitch(r)\n\n\t\t{\n\n\t\tcase 0xbd:\n\n\t\t\t/* amsep,vibdep,r,bd,sd,tom,tc,hh */\n\n\t\t\t{\n\n\t\t\tUINT8 rkey = OPL->rythm^v;\n\n\t\t\tOPL->ams_table = &AMS_TABLE[v&0x80 ? AMS_ENT : 0];\n\n\t\t\tOPL->vib_table = &VIB_TABLE[v&0x40 ? VIB_ENT : 0];\n\n\t\t\tOPL->rythm = v&0x3f;\n\n\t\t\tif(OPL->rythm&0x20)\n\n\t\t\t{\n\n#if 0\n\n\t\t\t\tusrintf_showmessage(\"OPL Rythm mode select\");\n\n#endif\n\n\t\t\t\t/* BD key on/off */\n\n\t\t\t\tif(rkey&0x10)\n\n\t\t\t\t{\n\n\t\t\t\t\tif(v&0x10)\n\n\t\t\t\t\t{\n\n\t\t\t\t\t\tOPL->P_CH[6].op1_out[0] = OPL->P_CH[6].op1_out[1] = 0;\n\n\t\t\t\t\t\tOPL_KEYON(&OPL->P_CH[6].SLOT[SLOT1]);\n\n\t\t\t\t\t\tOPL_KEYON(&OPL->P_CH[6].SLOT[SLOT2]);\n\n\t\t\t\t\t}\n\n\t\t\t\t\telse\n\n\t\t\t\t\t{\n\n\t\t\t\t\t\tOPL_KEYOFF(&OPL->P_CH[6].SLOT[SLOT1]);\n\n\t\t\t\t\t\tOPL_KEYOFF(&OPL->P_CH[6].SLOT[SLOT2]);\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\t/* SD key on/off */\n\n\t\t\t\tif(rkey&0x08)\n\n\t\t\t\t{\n\n\t\t\t\t\tif(v&0x08) OPL_KEYON(&OPL->P_CH[7].SLOT[SLOT2]);\n\n\t\t\t\t\telse OPL_KEYOFF(&OPL->P_CH[7].SLOT[SLOT2]);\n\n\t\t\t\t}/* TAM key on/off */\n\n\t\t\t\tif(rkey&0x04)\n\n\t\t\t\t{\n\n\t\t\t\t\tif(v&0x04) OPL_KEYON(&OPL->P_CH[8].SLOT[SLOT1]);\n\n\t\t\t\t\telse OPL_KEYOFF(&OPL->P_CH[8].SLOT[SLOT1]);\n\n\t\t\t\t}\n\n\t\t\t\t/* TOP-CY key on/off */\n\n\t\t\t\tif(rkey&0x02)\n\n\t\t\t\t{\n\n\t\t\t\t\tif(v&0x02) OPL_KEYON(&OPL->P_CH[8].SLOT[SLOT2]);\n\n\t\t\t\t\telse OPL_KEYOFF(&OPL->P_CH[8].SLOT[SLOT2]);\n\n\t\t\t\t}\n\n\t\t\t\t/* HH key on/off */\n\n\t\t\t\tif(rkey&0x01)\n\n\t\t\t\t{\n\n\t\t\t\t\tif(v&0x01) OPL_KEYON(&OPL->P_CH[7].SLOT[SLOT1]);\n\n\t\t\t\t\telse OPL_KEYOFF(&OPL->P_CH[7].SLOT[SLOT1]);\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn;\n\n\t\t}\n\n\t\t/* keyon,block,fnum */\n\n\t\tif( (r&0x0f) > 8) return;\n\n\t\tCH = &OPL->P_CH[r&0x0f];\n\n\t\tif(!(r&0x10))\n\n\t\t{\t/* a0-a8 */\n\n\t\t\tblock_fnum = (CH->block_fnum&0x1f00) | v;\n\n\t\t}\n\n\t\telse\n\n\t\t{\t/* b0-b8 */\n\n\t\t\tint keyon = (v>>5)&1;\n\n\t\t\tblock_fnum = ((v&0x1f)<<8) | (CH->block_fnum&0xff);\n\n\t\t\tif(CH->keyon != keyon)\n\n\t\t\t{\n\n\t\t\t\tif( (CH->keyon=keyon) )\n\n\t\t\t\t{\n\n\t\t\t\t\tCH->op1_out[0] = CH->op1_out[1] = 0;\n\n\t\t\t\t\tOPL_KEYON(&CH->SLOT[SLOT1]);\n\n\t\t\t\t\tOPL_KEYON(&CH->SLOT[SLOT2]);\n\n\t\t\t\t}\n\n\t\t\t\telse\n\n\t\t\t\t{\n\n\t\t\t\t\tOPL_KEYOFF(&CH->SLOT[SLOT1]);\n\n\t\t\t\t\tOPL_KEYOFF(&CH->SLOT[SLOT2]);\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\t/* update */\n\n\t\tif(CH->block_fnum != block_fnum)\n\n\t\t{\n\n\t\t\tint blockRv = 7-(block_fnum>>10);\n\n\t\t\tint fnum = block_fnum&0x3ff;\n\n\t\t\tCH->block_fnum = block_fnum;\n\n\n\n\t\t\tCH->ksl_base = KSL_TABLE[block_fnum>>6];\n\n\t\t\tCH->fc = OPL->FN_TABLE[fnum]>>blockRv;\n\n\t\t\tCH->kcode = CH->block_fnum>>9;\n\n\t\t\tif( (OPL->mode&0x40) && CH->block_fnum&0x100) CH->kcode |=1;\n\n\t\t\tCALC_FCSLOT(CH,&CH->SLOT[SLOT1]);\n\n\t\t\tCALC_FCSLOT(CH,&CH->SLOT[SLOT2]);\n\n\t\t}\n\n\t\treturn;\n\n\tcase 0xc0:\n\n\t\t/* FB,C */\n\n\t\tif( (r&0x0f) > 8) return;\n\n\t\tCH = &OPL->P_CH[r&0x0f];\n\n\t\t{\n\n\t\tint feedback = (v>>1)&7;\n\n\t\tCH->FB = feedback ? (8+1) - feedback : 0;\n\n\t\tCH->CON = v&1;\n\n\t\tset_algorythm(CH);\n\n\t\t}\n\n\t\treturn;\n\n\tcase 0xe0: /* wave type */\n\n\t\tslot = slot_array[r&0x1f];\n\n\t\tif(slot == -1) return;\n\n\t\tCH = &OPL->P_CH[slot/2];\n\n\t\tif(OPL->wavesel)\n\n\t\t{\n\n\t\t\t/* LOG(LOG_INF,(\"OPL SLOT %d wave select %d\\n\",slot,v&3)); */\n\n\t\t\tCH->SLOT[slot&1].wavetable = &SIN_TABLE[(v&0x03)*SIN_ENT];\n\n\t\t}\n\n\t\treturn;\n\n\t}\n\n}\n", + "output": "0", + "index": 12762 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void gen_farith (DisasContext *ctx, uint32_t op1, int ft,\n\n int fs, int fd, int cc)\n\n{\n\n const char *opn = \"farith\";\n\n const char *condnames[] = {\n\n \"c.f\",\n\n \"c.un\",\n\n \"c.eq\",\n\n \"c.ueq\",\n\n \"c.olt\",\n\n \"c.ult\",\n\n \"c.ole\",\n\n \"c.ule\",\n\n \"c.sf\",\n\n \"c.ngle\",\n\n \"c.seq\",\n\n \"c.ngl\",\n\n \"c.lt\",\n\n \"c.nge\",\n\n \"c.le\",\n\n \"c.ngt\",\n\n };\n\n const char *condnames_abs[] = {\n\n \"cabs.f\",\n\n \"cabs.un\",\n\n \"cabs.eq\",\n\n \"cabs.ueq\",\n\n \"cabs.olt\",\n\n \"cabs.ult\",\n\n \"cabs.ole\",\n\n \"cabs.ule\",\n\n \"cabs.sf\",\n\n \"cabs.ngle\",\n\n \"cabs.seq\",\n\n \"cabs.ngl\",\n\n \"cabs.lt\",\n\n \"cabs.nge\",\n\n \"cabs.le\",\n\n \"cabs.ngt\",\n\n };\n\n enum { BINOP, CMPOP, OTHEROP } optype = OTHEROP;\n\n uint32_t func = ctx->opcode & 0x3f;\n\n\n\n switch (ctx->opcode & FOP(0x3f, 0x1f)) {\n\n case FOP(0, 16):\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WT1, ft);\n\n gen_op_float_add_s();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"add.s\";\n\n optype = BINOP;\n\n break;\n\n case FOP(1, 16):\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WT1, ft);\n\n gen_op_float_sub_s();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"sub.s\";\n\n optype = BINOP;\n\n break;\n\n case FOP(2, 16):\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WT1, ft);\n\n gen_op_float_mul_s();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"mul.s\";\n\n optype = BINOP;\n\n break;\n\n case FOP(3, 16):\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WT1, ft);\n\n gen_op_float_div_s();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"div.s\";\n\n optype = BINOP;\n\n break;\n\n case FOP(4, 16):\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n gen_op_float_sqrt_s();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"sqrt.s\";\n\n break;\n\n case FOP(5, 16):\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n gen_op_float_abs_s();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"abs.s\";\n\n break;\n\n case FOP(6, 16):\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n gen_op_float_mov_s();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"mov.s\";\n\n break;\n\n case FOP(7, 16):\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n gen_op_float_chs_s();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"neg.s\";\n\n break;\n\n case FOP(8, 16):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n gen_op_float_roundl_s();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"round.l.s\";\n\n break;\n\n case FOP(9, 16):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n gen_op_float_truncl_s();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"trunc.l.s\";\n\n break;\n\n case FOP(10, 16):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n gen_op_float_ceill_s();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"ceil.l.s\";\n\n break;\n\n case FOP(11, 16):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n gen_op_float_floorl_s();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"floor.l.s\";\n\n break;\n\n case FOP(12, 16):\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n gen_op_float_roundw_s();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"round.w.s\";\n\n break;\n\n case FOP(13, 16):\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n gen_op_float_truncw_s();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"trunc.w.s\";\n\n break;\n\n case FOP(14, 16):\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n gen_op_float_ceilw_s();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"ceil.w.s\";\n\n break;\n\n case FOP(15, 16):\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n gen_op_float_floorw_s();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"floor.w.s\";\n\n break;\n\n case FOP(17, 16):\n\n GEN_LOAD_REG_TN(T0, ft);\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WT2, fd);\n\n gen_movcf_s(ctx, (ft >> 2) & 0x7, ft & 0x1);\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"movcf.s\";\n\n break;\n\n case FOP(18, 16):\n\n GEN_LOAD_REG_TN(T0, ft);\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WT2, fd);\n\n gen_op_float_movz_s();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"movz.s\";\n\n break;\n\n case FOP(19, 16):\n\n GEN_LOAD_REG_TN(T0, ft);\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WT2, fd);\n\n gen_op_float_movn_s();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"movn.s\";\n\n break;\n\n case FOP(21, 16):\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n gen_op_float_recip_s();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"recip.s\";\n\n break;\n\n case FOP(22, 16):\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n gen_op_float_rsqrt_s();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"rsqrt.s\";\n\n break;\n\n case FOP(28, 16):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WT2, fd);\n\n gen_op_float_recip2_s();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"recip2.s\";\n\n break;\n\n case FOP(29, 16):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n gen_op_float_recip1_s();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"recip1.s\";\n\n break;\n\n case FOP(30, 16):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n gen_op_float_rsqrt1_s();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"rsqrt1.s\";\n\n break;\n\n case FOP(31, 16):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WT2, fd);\n\n gen_op_float_rsqrt2_s();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"rsqrt2.s\";\n\n break;\n\n case FOP(33, 16):\n\n gen_op_cp1_registers(fd);\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n gen_op_float_cvtd_s();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"cvt.d.s\";\n\n break;\n\n case FOP(36, 16):\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n gen_op_float_cvtw_s();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"cvt.w.s\";\n\n break;\n\n case FOP(37, 16):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n gen_op_float_cvtl_s();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"cvt.l.s\";\n\n break;\n\n case FOP(38, 16):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT1, fs);\n\n GEN_LOAD_FREG_FTN(WT0, ft);\n\n gen_op_float_cvtps_s();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"cvt.ps.s\";\n\n break;\n\n case FOP(48, 16):\n\n case FOP(49, 16):\n\n case FOP(50, 16):\n\n case FOP(51, 16):\n\n case FOP(52, 16):\n\n case FOP(53, 16):\n\n case FOP(54, 16):\n\n case FOP(55, 16):\n\n case FOP(56, 16):\n\n case FOP(57, 16):\n\n case FOP(58, 16):\n\n case FOP(59, 16):\n\n case FOP(60, 16):\n\n case FOP(61, 16):\n\n case FOP(62, 16):\n\n case FOP(63, 16):\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WT1, ft);\n\n if (ctx->opcode & (1 << 6)) {\n\n gen_op_cp1_64bitmode();\n\n gen_cmpabs_s(func-48, cc);\n\n opn = condnames_abs[func-48];\n\n } else {\n\n gen_cmp_s(func-48, cc);\n\n opn = condnames[func-48];\n\n }\n\n break;\n\n case FOP(0, 17):\n\n gen_op_cp1_registers(fs | ft | fd);\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n GEN_LOAD_FREG_FTN(DT1, ft);\n\n gen_op_float_add_d();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"add.d\";\n\n optype = BINOP;\n\n break;\n\n case FOP(1, 17):\n\n gen_op_cp1_registers(fs | ft | fd);\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n GEN_LOAD_FREG_FTN(DT1, ft);\n\n gen_op_float_sub_d();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"sub.d\";\n\n optype = BINOP;\n\n break;\n\n case FOP(2, 17):\n\n gen_op_cp1_registers(fs | ft | fd);\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n GEN_LOAD_FREG_FTN(DT1, ft);\n\n gen_op_float_mul_d();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"mul.d\";\n\n optype = BINOP;\n\n break;\n\n case FOP(3, 17):\n\n gen_op_cp1_registers(fs | ft | fd);\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n GEN_LOAD_FREG_FTN(DT1, ft);\n\n gen_op_float_div_d();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"div.d\";\n\n optype = BINOP;\n\n break;\n\n case FOP(4, 17):\n\n gen_op_cp1_registers(fs | fd);\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n gen_op_float_sqrt_d();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"sqrt.d\";\n\n break;\n\n case FOP(5, 17):\n\n gen_op_cp1_registers(fs | fd);\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n gen_op_float_abs_d();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"abs.d\";\n\n break;\n\n case FOP(6, 17):\n\n gen_op_cp1_registers(fs | fd);\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n gen_op_float_mov_d();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"mov.d\";\n\n break;\n\n case FOP(7, 17):\n\n gen_op_cp1_registers(fs | fd);\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n gen_op_float_chs_d();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"neg.d\";\n\n break;\n\n case FOP(8, 17):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n gen_op_float_roundl_d();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"round.l.d\";\n\n break;\n\n case FOP(9, 17):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n gen_op_float_truncl_d();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"trunc.l.d\";\n\n break;\n\n case FOP(10, 17):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n gen_op_float_ceill_d();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"ceil.l.d\";\n\n break;\n\n case FOP(11, 17):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n gen_op_float_floorl_d();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"floor.l.d\";\n\n break;\n\n case FOP(12, 17):\n\n gen_op_cp1_registers(fs);\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n gen_op_float_roundw_d();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"round.w.d\";\n\n break;\n\n case FOP(13, 17):\n\n gen_op_cp1_registers(fs);\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n gen_op_float_truncw_d();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"trunc.w.d\";\n\n break;\n\n case FOP(14, 17):\n\n gen_op_cp1_registers(fs);\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n gen_op_float_ceilw_d();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"ceil.w.d\";\n\n break;\n\n case FOP(15, 17):\n\n gen_op_cp1_registers(fs);\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n gen_op_float_floorw_d();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"floor.w.d\";\n\n break;\n\n case FOP(17, 17):\n\n GEN_LOAD_REG_TN(T0, ft);\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n GEN_LOAD_FREG_FTN(DT2, fd);\n\n gen_movcf_d(ctx, (ft >> 2) & 0x7, ft & 0x1);\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"movcf.d\";\n\n break;\n\n case FOP(18, 17):\n\n GEN_LOAD_REG_TN(T0, ft);\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n GEN_LOAD_FREG_FTN(DT2, fd);\n\n gen_op_float_movz_d();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"movz.d\";\n\n break;\n\n case FOP(19, 17):\n\n GEN_LOAD_REG_TN(T0, ft);\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n GEN_LOAD_FREG_FTN(DT2, fd);\n\n gen_op_float_movn_d();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"movn.d\";\n\n break;\n\n case FOP(21, 17):\n\n gen_op_cp1_registers(fs | fd);\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n gen_op_float_recip_d();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"recip.d\";\n\n break;\n\n case FOP(22, 17):\n\n gen_op_cp1_registers(fs | fd);\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n gen_op_float_rsqrt_d();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"rsqrt.d\";\n\n break;\n\n case FOP(28, 17):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n GEN_LOAD_FREG_FTN(DT2, ft);\n\n gen_op_float_recip2_d();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"recip2.d\";\n\n break;\n\n case FOP(29, 17):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n gen_op_float_recip1_d();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"recip1.d\";\n\n break;\n\n case FOP(30, 17):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n gen_op_float_rsqrt1_d();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"rsqrt1.d\";\n\n break;\n\n case FOP(31, 17):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n GEN_LOAD_FREG_FTN(DT2, ft);\n\n gen_op_float_rsqrt2_d();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"rsqrt2.d\";\n\n break;\n\n case FOP(48, 17):\n\n case FOP(49, 17):\n\n case FOP(50, 17):\n\n case FOP(51, 17):\n\n case FOP(52, 17):\n\n case FOP(53, 17):\n\n case FOP(54, 17):\n\n case FOP(55, 17):\n\n case FOP(56, 17):\n\n case FOP(57, 17):\n\n case FOP(58, 17):\n\n case FOP(59, 17):\n\n case FOP(60, 17):\n\n case FOP(61, 17):\n\n case FOP(62, 17):\n\n case FOP(63, 17):\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n GEN_LOAD_FREG_FTN(DT1, ft);\n\n if (ctx->opcode & (1 << 6)) {\n\n gen_op_cp1_64bitmode();\n\n gen_cmpabs_d(func-48, cc);\n\n opn = condnames_abs[func-48];\n\n } else {\n\n gen_op_cp1_registers(fs | ft);\n\n gen_cmp_d(func-48, cc);\n\n opn = condnames[func-48];\n\n }\n\n break;\n\n case FOP(32, 17):\n\n gen_op_cp1_registers(fs);\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n gen_op_float_cvts_d();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"cvt.s.d\";\n\n break;\n\n case FOP(36, 17):\n\n gen_op_cp1_registers(fs);\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n gen_op_float_cvtw_d();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"cvt.w.d\";\n\n break;\n\n case FOP(37, 17):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n gen_op_float_cvtl_d();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"cvt.l.d\";\n\n break;\n\n case FOP(32, 20):\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n gen_op_float_cvts_w();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"cvt.s.w\";\n\n break;\n\n case FOP(33, 20):\n\n gen_op_cp1_registers(fd);\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n gen_op_float_cvtd_w();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"cvt.d.w\";\n\n break;\n\n case FOP(32, 21):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n gen_op_float_cvts_l();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"cvt.s.l\";\n\n break;\n\n case FOP(33, 21):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(DT0, fs);\n\n gen_op_float_cvtd_l();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"cvt.d.l\";\n\n break;\n\n case FOP(38, 20):\n\n case FOP(38, 21):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WTH0, fs);\n\n gen_op_float_cvtps_pw();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n GEN_STORE_FTN_FREG(fd, WTH2);\n\n opn = \"cvt.ps.pw\";\n\n break;\n\n case FOP(0, 22):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WTH0, fs);\n\n GEN_LOAD_FREG_FTN(WT1, ft);\n\n GEN_LOAD_FREG_FTN(WTH1, ft);\n\n gen_op_float_add_ps();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n GEN_STORE_FTN_FREG(fd, WTH2);\n\n opn = \"add.ps\";\n\n break;\n\n case FOP(1, 22):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WTH0, fs);\n\n GEN_LOAD_FREG_FTN(WT1, ft);\n\n GEN_LOAD_FREG_FTN(WTH1, ft);\n\n gen_op_float_sub_ps();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n GEN_STORE_FTN_FREG(fd, WTH2);\n\n opn = \"sub.ps\";\n\n break;\n\n case FOP(2, 22):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WTH0, fs);\n\n GEN_LOAD_FREG_FTN(WT1, ft);\n\n GEN_LOAD_FREG_FTN(WTH1, ft);\n\n gen_op_float_mul_ps();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n GEN_STORE_FTN_FREG(fd, WTH2);\n\n opn = \"mul.ps\";\n\n break;\n\n case FOP(5, 22):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WTH0, fs);\n\n gen_op_float_abs_ps();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n GEN_STORE_FTN_FREG(fd, WTH2);\n\n opn = \"abs.ps\";\n\n break;\n\n case FOP(6, 22):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WTH0, fs);\n\n gen_op_float_mov_ps();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n GEN_STORE_FTN_FREG(fd, WTH2);\n\n opn = \"mov.ps\";\n\n break;\n\n case FOP(7, 22):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WTH0, fs);\n\n gen_op_float_chs_ps();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n GEN_STORE_FTN_FREG(fd, WTH2);\n\n opn = \"neg.ps\";\n\n break;\n\n case FOP(17, 22):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_REG_TN(T0, ft);\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WTH0, fs);\n\n GEN_LOAD_FREG_FTN(WT2, fd);\n\n GEN_LOAD_FREG_FTN(WTH2, fd);\n\n gen_movcf_ps(ctx, (ft >> 2) & 0x7, ft & 0x1);\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n GEN_STORE_FTN_FREG(fd, WTH2);\n\n opn = \"movcf.ps\";\n\n break;\n\n case FOP(18, 22):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_REG_TN(T0, ft);\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WTH0, fs);\n\n GEN_LOAD_FREG_FTN(WT2, fd);\n\n GEN_LOAD_FREG_FTN(WTH2, fd);\n\n gen_op_float_movz_ps();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n GEN_STORE_FTN_FREG(fd, WTH2);\n\n opn = \"movz.ps\";\n\n break;\n\n case FOP(19, 22):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_REG_TN(T0, ft);\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WTH0, fs);\n\n GEN_LOAD_FREG_FTN(WT2, fd);\n\n GEN_LOAD_FREG_FTN(WTH2, fd);\n\n gen_op_float_movn_ps();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n GEN_STORE_FTN_FREG(fd, WTH2);\n\n opn = \"movn.ps\";\n\n break;\n\n case FOP(24, 22):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, ft);\n\n GEN_LOAD_FREG_FTN(WTH0, ft);\n\n GEN_LOAD_FREG_FTN(WT1, fs);\n\n GEN_LOAD_FREG_FTN(WTH1, fs);\n\n gen_op_float_addr_ps();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n GEN_STORE_FTN_FREG(fd, WTH2);\n\n opn = \"addr.ps\";\n\n break;\n\n case FOP(26, 22):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, ft);\n\n GEN_LOAD_FREG_FTN(WTH0, ft);\n\n GEN_LOAD_FREG_FTN(WT1, fs);\n\n GEN_LOAD_FREG_FTN(WTH1, fs);\n\n gen_op_float_mulr_ps();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n GEN_STORE_FTN_FREG(fd, WTH2);\n\n opn = \"mulr.ps\";\n\n break;\n\n case FOP(28, 22):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WTH0, fs);\n\n GEN_LOAD_FREG_FTN(WT2, fd);\n\n GEN_LOAD_FREG_FTN(WTH2, fd);\n\n gen_op_float_recip2_ps();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n GEN_STORE_FTN_FREG(fd, WTH2);\n\n opn = \"recip2.ps\";\n\n break;\n\n case FOP(29, 22):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WTH0, fs);\n\n gen_op_float_recip1_ps();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n GEN_STORE_FTN_FREG(fd, WTH2);\n\n opn = \"recip1.ps\";\n\n break;\n\n case FOP(30, 22):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WTH0, fs);\n\n gen_op_float_rsqrt1_ps();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n GEN_STORE_FTN_FREG(fd, WTH2);\n\n opn = \"rsqrt1.ps\";\n\n break;\n\n case FOP(31, 22):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WTH0, fs);\n\n GEN_LOAD_FREG_FTN(WT2, fd);\n\n GEN_LOAD_FREG_FTN(WTH2, fd);\n\n gen_op_float_rsqrt2_ps();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n GEN_STORE_FTN_FREG(fd, WTH2);\n\n opn = \"rsqrt2.ps\";\n\n break;\n\n case FOP(32, 22):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WTH0, fs);\n\n gen_op_float_cvts_pu();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"cvt.s.pu\";\n\n break;\n\n case FOP(36, 22):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WTH0, fs);\n\n gen_op_float_cvtpw_ps();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n GEN_STORE_FTN_FREG(fd, WTH2);\n\n opn = \"cvt.pw.ps\";\n\n break;\n\n case FOP(40, 22):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n gen_op_float_cvts_pl();\n\n GEN_STORE_FTN_FREG(fd, WT2);\n\n opn = \"cvt.s.pl\";\n\n break;\n\n case FOP(44, 22):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WT1, ft);\n\n gen_op_float_pll_ps();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"pll.ps\";\n\n break;\n\n case FOP(45, 22):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WTH1, ft);\n\n gen_op_float_plu_ps();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"plu.ps\";\n\n break;\n\n case FOP(46, 22):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WTH0, fs);\n\n GEN_LOAD_FREG_FTN(WT1, ft);\n\n gen_op_float_pul_ps();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"pul.ps\";\n\n break;\n\n case FOP(47, 22):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WTH0, fs);\n\n GEN_LOAD_FREG_FTN(WTH1, ft);\n\n gen_op_float_puu_ps();\n\n GEN_STORE_FTN_FREG(fd, DT2);\n\n opn = \"puu.ps\";\n\n break;\n\n case FOP(48, 22):\n\n case FOP(49, 22):\n\n case FOP(50, 22):\n\n case FOP(51, 22):\n\n case FOP(52, 22):\n\n case FOP(53, 22):\n\n case FOP(54, 22):\n\n case FOP(55, 22):\n\n case FOP(56, 22):\n\n case FOP(57, 22):\n\n case FOP(58, 22):\n\n case FOP(59, 22):\n\n case FOP(60, 22):\n\n case FOP(61, 22):\n\n case FOP(62, 22):\n\n case FOP(63, 22):\n\n gen_op_cp1_64bitmode();\n\n GEN_LOAD_FREG_FTN(WT0, fs);\n\n GEN_LOAD_FREG_FTN(WTH0, fs);\n\n GEN_LOAD_FREG_FTN(WT1, ft);\n\n GEN_LOAD_FREG_FTN(WTH1, ft);\n\n if (ctx->opcode & (1 << 6)) {\n\n gen_cmpabs_ps(func-48, cc);\n\n opn = condnames_abs[func-48];\n\n } else {\n\n gen_cmp_ps(func-48, cc);\n\n opn = condnames[func-48];\n\n }\n\n break;\n\n default:\n\n MIPS_INVAL(opn);\n\n generate_exception (ctx, EXCP_RI);\n\n return;\n\n }\n\n switch (optype) {\n\n case BINOP:\n\n MIPS_DEBUG(\"%s %s, %s, %s\", opn, fregnames[fd], fregnames[fs], fregnames[ft]);\n\n break;\n\n case CMPOP:\n\n MIPS_DEBUG(\"%s %s,%s\", opn, fregnames[fs], fregnames[ft]);\n\n break;\n\n default:\n\n MIPS_DEBUG(\"%s %s,%s\", opn, fregnames[fd], fregnames[fs]);\n\n break;\n\n }\n\n}\n", + "output": "0", + "index": 19391 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "sdhci_write(void *opaque, hwaddr offset, uint64_t val, unsigned size)\n\n{\n\n SDHCIState *s = (SDHCIState *)opaque;\n\n unsigned shift = 8 * (offset & 0x3);\n\n uint32_t mask = ~(((1ULL << (size * 8)) - 1) << shift);\n\n uint32_t value = val;\n\n value <<= shift;\n\n\n\n switch (offset & ~0x3) {\n\n case SDHC_SYSAD:\n\n s->sdmasysad = (s->sdmasysad & mask) | value;\n\n MASKED_WRITE(s->sdmasysad, mask, value);\n\n /* Writing to last byte of sdmasysad might trigger transfer */\n\n if (!(mask & 0xFF000000) && TRANSFERRING_DATA(s->prnsts) && s->blkcnt &&\n\n s->blksize && SDHC_DMA_TYPE(s->hostctl) == SDHC_CTRL_SDMA) {\n\n sdhci_sdma_transfer_multi_blocks(s);\n\n }\n\n break;\n\n case SDHC_BLKSIZE:\n\n if (!TRANSFERRING_DATA(s->prnsts)) {\n\n MASKED_WRITE(s->blksize, mask, value);\n\n MASKED_WRITE(s->blkcnt, mask >> 16, value >> 16);\n\n }\n\n\n\n /* Limit block size to the maximum buffer size */\n\n if (extract32(s->blksize, 0, 12) > s->buf_maxsz) {\n\n qemu_log_mask(LOG_GUEST_ERROR, \"%s: Size 0x%x is larger than \" \\\n\n \"the maximum buffer 0x%x\", __func__, s->blksize,\n\n s->buf_maxsz);\n\n\n\n s->blksize = deposit32(s->blksize, 0, 12, s->buf_maxsz);\n\n }\n\n\n\n break;\n\n case SDHC_ARGUMENT:\n\n MASKED_WRITE(s->argument, mask, value);\n\n break;\n\n case SDHC_TRNMOD:\n\n /* DMA can be enabled only if it is supported as indicated by\n\n * capabilities register */\n\n if (!(s->capareg & SDHC_CAN_DO_DMA)) {\n\n value &= ~SDHC_TRNS_DMA;\n\n }\n\n MASKED_WRITE(s->trnmod, mask, value);\n\n MASKED_WRITE(s->cmdreg, mask >> 16, value >> 16);\n\n\n\n /* Writing to the upper byte of CMDREG triggers SD command generation */\n\n if ((mask & 0xFF000000) || !sdhci_can_issue_command(s)) {\n\n break;\n\n }\n\n\n\n sdhci_send_command(s);\n\n break;\n\n case SDHC_BDATA:\n\n if (sdhci_buff_access_is_sequential(s, offset - SDHC_BDATA)) {\n\n sdhci_write_dataport(s, value >> shift, size);\n\n }\n\n break;\n\n case SDHC_HOSTCTL:\n\n if (!(mask & 0xFF0000)) {\n\n sdhci_blkgap_write(s, value >> 16);\n\n }\n\n MASKED_WRITE(s->hostctl, mask, value);\n\n MASKED_WRITE(s->pwrcon, mask >> 8, value >> 8);\n\n MASKED_WRITE(s->wakcon, mask >> 24, value >> 24);\n\n if (!(s->prnsts & SDHC_CARD_PRESENT) || ((s->pwrcon >> 1) & 0x7) < 5 ||\n\n !(s->capareg & (1 << (31 - ((s->pwrcon >> 1) & 0x7))))) {\n\n s->pwrcon &= ~SDHC_POWER_ON;\n\n }\n\n break;\n\n case SDHC_CLKCON:\n\n if (!(mask & 0xFF000000)) {\n\n sdhci_reset_write(s, value >> 24);\n\n }\n\n MASKED_WRITE(s->clkcon, mask, value);\n\n MASKED_WRITE(s->timeoutcon, mask >> 16, value >> 16);\n\n if (s->clkcon & SDHC_CLOCK_INT_EN) {\n\n s->clkcon |= SDHC_CLOCK_INT_STABLE;\n\n } else {\n\n s->clkcon &= ~SDHC_CLOCK_INT_STABLE;\n\n }\n\n break;\n\n case SDHC_NORINTSTS:\n\n if (s->norintstsen & SDHC_NISEN_CARDINT) {\n\n value &= ~SDHC_NIS_CARDINT;\n\n }\n\n s->norintsts &= mask | ~value;\n\n s->errintsts &= (mask >> 16) | ~(value >> 16);\n\n if (s->errintsts) {\n\n s->norintsts |= SDHC_NIS_ERR;\n\n } else {\n\n s->norintsts &= ~SDHC_NIS_ERR;\n\n }\n\n sdhci_update_irq(s);\n\n break;\n\n case SDHC_NORINTSTSEN:\n\n MASKED_WRITE(s->norintstsen, mask, value);\n\n MASKED_WRITE(s->errintstsen, mask >> 16, value >> 16);\n\n s->norintsts &= s->norintstsen;\n\n s->errintsts &= s->errintstsen;\n\n if (s->errintsts) {\n\n s->norintsts |= SDHC_NIS_ERR;\n\n } else {\n\n s->norintsts &= ~SDHC_NIS_ERR;\n\n }\n\n /* Quirk for Raspberry Pi: pending card insert interrupt\n\n * appears when first enabled after power on */\n\n if ((s->norintstsen & SDHC_NISEN_INSERT) && s->pending_insert_state) {\n\n assert(s->pending_insert_quirk);\n\n s->norintsts |= SDHC_NIS_INSERT;\n\n s->pending_insert_state = false;\n\n }\n\n sdhci_update_irq(s);\n\n break;\n\n case SDHC_NORINTSIGEN:\n\n MASKED_WRITE(s->norintsigen, mask, value);\n\n MASKED_WRITE(s->errintsigen, mask >> 16, value >> 16);\n\n sdhci_update_irq(s);\n\n break;\n\n case SDHC_ADMAERR:\n\n MASKED_WRITE(s->admaerr, mask, value);\n\n break;\n\n case SDHC_ADMASYSADDR:\n\n s->admasysaddr = (s->admasysaddr & (0xFFFFFFFF00000000ULL |\n\n (uint64_t)mask)) | (uint64_t)value;\n\n break;\n\n case SDHC_ADMASYSADDR + 4:\n\n s->admasysaddr = (s->admasysaddr & (0x00000000FFFFFFFFULL |\n\n ((uint64_t)mask << 32))) | ((uint64_t)value << 32);\n\n break;\n\n case SDHC_FEAER:\n\n s->acmd12errsts |= value;\n\n s->errintsts |= (value >> 16) & s->errintstsen;\n\n if (s->acmd12errsts) {\n\n s->errintsts |= SDHC_EIS_CMD12ERR;\n\n }\n\n if (s->errintsts) {\n\n s->norintsts |= SDHC_NIS_ERR;\n\n }\n\n sdhci_update_irq(s);\n\n break;\n\n default:\n\n ERRPRINT(\"bad %ub write offset: addr[0x%04x] <- %u(0x%x)\\n\",\n\n size, (int)offset, value >> shift, value >> shift);\n\n break;\n\n }\n\n DPRINT_L2(\"write %ub: addr[0x%04x] <- %u(0x%x)\\n\",\n\n size, (int)offset, value >> shift, value >> shift);\n\n}\n", + "output": "0", + "index": 16265 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int config_input(AVFilterLink *inlink)\n\n{\n\n AVFilterContext *ctx = inlink->dst;\n\n PadContext *s = ctx->priv;\n\n const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(inlink->format);\n\n uint8_t rgba_color[4];\n\n int ret, is_packed_rgba;\n\n double var_values[VARS_NB], res;\n\n char *expr;\n\n\n\n s->hsub = pix_desc->log2_chroma_w;\n\n s->vsub = pix_desc->log2_chroma_h;\n\n\n\n var_values[VAR_PI] = M_PI;\n\n var_values[VAR_PHI] = M_PHI;\n\n var_values[VAR_E] = M_E;\n\n var_values[VAR_IN_W] = var_values[VAR_IW] = inlink->w;\n\n var_values[VAR_IN_H] = var_values[VAR_IH] = inlink->h;\n\n var_values[VAR_OUT_W] = var_values[VAR_OW] = NAN;\n\n var_values[VAR_OUT_H] = var_values[VAR_OH] = NAN;\n\n var_values[VAR_A] = (double) inlink->w / inlink->h;\n\n var_values[VAR_HSUB] = 1<hsub;\n\n var_values[VAR_VSUB] = 1<vsub;\n\n\n\n /* evaluate width and height */\n\n if ((ret = av_expr_parse_and_eval(&res, (expr = s->w_expr),\n\n var_names, var_values,\n\n NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)\n\n goto eval_fail;\n\n s->w = var_values[VAR_OUT_W] = var_values[VAR_OW] = res;\n\n if ((ret = av_expr_parse_and_eval(&res, (expr = s->h_expr),\n\n var_names, var_values,\n\n NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)\n\n goto eval_fail;\n\n s->h = var_values[VAR_OUT_H] = var_values[VAR_OH] = res;\n\n /* evaluate the width again, as it may depend on the evaluated output height */\n\n if ((ret = av_expr_parse_and_eval(&res, (expr = s->w_expr),\n\n var_names, var_values,\n\n NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)\n\n goto eval_fail;\n\n s->w = var_values[VAR_OUT_W] = var_values[VAR_OW] = res;\n\n\n\n /* evaluate x and y */\n\n if ((ret = av_expr_parse_and_eval(&res, (expr = s->x_expr),\n\n var_names, var_values,\n\n NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)\n\n goto eval_fail;\n\n s->x = var_values[VAR_X] = res;\n\n if ((ret = av_expr_parse_and_eval(&res, (expr = s->y_expr),\n\n var_names, var_values,\n\n NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)\n\n goto eval_fail;\n\n s->y = var_values[VAR_Y] = res;\n\n /* evaluate x again, as it may depend on the evaluated y value */\n\n if ((ret = av_expr_parse_and_eval(&res, (expr = s->x_expr),\n\n var_names, var_values,\n\n NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)\n\n goto eval_fail;\n\n s->x = var_values[VAR_X] = res;\n\n\n\n /* sanity check params */\n\n if (s->w < 0 || s->h < 0 || s->x < 0 || s->y < 0) {\n\n av_log(ctx, AV_LOG_ERROR, \"Negative values are not acceptable.\\n\");\n\n return AVERROR(EINVAL);\n\n }\n\n\n\n if (!s->w)\n\n s->w = inlink->w;\n\n if (!s->h)\n\n s->h = inlink->h;\n\n\n\n s->w &= ~((1 << s->hsub) - 1);\n\n s->h &= ~((1 << s->vsub) - 1);\n\n s->x &= ~((1 << s->hsub) - 1);\n\n s->y &= ~((1 << s->vsub) - 1);\n\n\n\n s->in_w = inlink->w & ~((1 << s->hsub) - 1);\n\n s->in_h = inlink->h & ~((1 << s->vsub) - 1);\n\n\n\n memcpy(rgba_color, s->color, sizeof(rgba_color));\n\n ff_fill_line_with_color(s->line, s->line_step, s->w, s->color,\n\n inlink->format, rgba_color, &is_packed_rgba, NULL);\n\n\n\n av_log(ctx, AV_LOG_VERBOSE, \"w:%d h:%d -> w:%d h:%d x:%d y:%d color:0x%02X%02X%02X%02X[%s]\\n\",\n\n inlink->w, inlink->h, s->w, s->h, s->x, s->y,\n\n s->color[0], s->color[1], s->color[2], s->color[3],\n\n is_packed_rgba ? \"rgba\" : \"yuva\");\n\n\n\n if (s->x < 0 || s->y < 0 ||\n\n s->w <= 0 || s->h <= 0 ||\n\n (unsigned)s->x + (unsigned)inlink->w > s->w ||\n\n (unsigned)s->y + (unsigned)inlink->h > s->h) {\n\n av_log(ctx, AV_LOG_ERROR,\n\n \"Input area %d:%d:%d:%d not within the padded area 0:0:%d:%d or zero-sized\\n\",\n\n s->x, s->y, s->x + inlink->w, s->y + inlink->h, s->w, s->h);\n\n return AVERROR(EINVAL);\n\n }\n\n\n\n return 0;\n\n\n\neval_fail:\n\n av_log(NULL, AV_LOG_ERROR,\n\n \"Error when evaluating the expression '%s'\\n\", expr);\n\n return ret;\n\n\n\n}\n", + "output": "0", + "index": 14172 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void cchip_write(void *opaque, target_phys_addr_t addr,\n\n uint64_t v32, unsigned size)\n\n{\n\n TyphoonState *s = opaque;\n\n uint64_t val, oldval, newval;\n\n\n\n if (addr & 4) {\n\n val = v32 << 32 | s->latch_tmp;\n\n addr ^= 4;\n\n } else {\n\n s->latch_tmp = v32;\n\n return;\n\n }\n\n\n\n switch (addr) {\n\n case 0x0000:\n\n /* CSC: Cchip System Configuration Register. */\n\n /* All sorts of data here; nothing relevant RW. */\n\n break;\n\n\n\n case 0x0040:\n\n /* MTR: Memory Timing Register. */\n\n /* All sorts of stuff related to real DRAM. */\n\n break;\n\n\n\n case 0x0080:\n\n /* MISC: Miscellaneous Register. */\n\n newval = oldval = s->cchip.misc;\n\n newval &= ~(val & 0x10000ff0); /* W1C fields */\n\n if (val & 0x100000) {\n\n newval &= ~0xff0000ull; /* ACL clears ABT and ABW */\n\n } else {\n\n newval |= val & 0x00f00000; /* ABT field is W1S */\n\n if ((newval & 0xf0000) == 0) {\n\n newval |= val & 0xf0000; /* ABW field is W1S iff zero */\n\n }\n\n }\n\n newval |= (val & 0xf000) >> 4; /* IPREQ field sets IPINTR. */\n\n\n\n newval &= ~0xf0000000000ull; /* WO and RW fields */\n\n newval |= val & 0xf0000000000ull;\n\n s->cchip.misc = newval;\n\n\n\n /* Pass on changes to IPI and ITI state. */\n\n if ((newval ^ oldval) & 0xff0) {\n\n int i;\n\n for (i = 0; i < 4; ++i) {\n\n CPUAlphaState *env = s->cchip.cpu[i];\n\n if (env) {\n\n /* IPI can be either cleared or set by the write. */\n\n if (newval & (1 << (i + 8))) {\n\n cpu_interrupt(env, CPU_INTERRUPT_SMP);\n\n } else {\n\n cpu_reset_interrupt(env, CPU_INTERRUPT_SMP);\n\n }\n\n\n\n /* ITI can only be cleared by the write. */\n\n if ((newval & (1 << (i + 4))) == 0) {\n\n cpu_reset_interrupt(env, CPU_INTERRUPT_TIMER);\n\n }\n\n }\n\n }\n\n }\n\n break;\n\n\n\n case 0x00c0:\n\n /* MPD: Memory Presence Detect Register. */\n\n break;\n\n\n\n case 0x0100: /* AAR0 */\n\n case 0x0140: /* AAR1 */\n\n case 0x0180: /* AAR2 */\n\n case 0x01c0: /* AAR3 */\n\n /* AAR: Array Address Register. */\n\n /* All sorts of information about DRAM. */\n\n break;\n\n\n\n case 0x0200: /* DIM0 */\n\n /* DIM: Device Interrupt Mask Register, CPU0. */\n\n s->cchip.dim[0] = val;\n\n cpu_irq_change(s->cchip.cpu[0], val & s->cchip.drir);\n\n break;\n\n case 0x0240: /* DIM1 */\n\n /* DIM: Device Interrupt Mask Register, CPU1. */\n\n s->cchip.dim[0] = val;\n\n cpu_irq_change(s->cchip.cpu[1], val & s->cchip.drir);\n\n break;\n\n\n\n case 0x0280: /* DIR0 (RO) */\n\n case 0x02c0: /* DIR1 (RO) */\n\n case 0x0300: /* DRIR (RO) */\n\n break;\n\n\n\n case 0x0340:\n\n /* PRBEN: Probe Enable Register. */\n\n break;\n\n\n\n case 0x0380: /* IIC0 */\n\n s->cchip.iic[0] = val & 0xffffff;\n\n break;\n\n case 0x03c0: /* IIC1 */\n\n s->cchip.iic[1] = val & 0xffffff;\n\n break;\n\n\n\n case 0x0400: /* MPR0 */\n\n case 0x0440: /* MPR1 */\n\n case 0x0480: /* MPR2 */\n\n case 0x04c0: /* MPR3 */\n\n /* MPR: Memory Programming Register. */\n\n break;\n\n\n\n case 0x0580:\n\n /* TTR: TIGbus Timing Register. */\n\n /* All sorts of stuff related to interrupt delivery timings. */\n\n break;\n\n case 0x05c0:\n\n /* TDR: TIGbug Device Timing Register. */\n\n break;\n\n\n\n case 0x0600:\n\n /* DIM2: Device Interrupt Mask Register, CPU2. */\n\n s->cchip.dim[2] = val;\n\n cpu_irq_change(s->cchip.cpu[2], val & s->cchip.drir);\n\n break;\n\n case 0x0640:\n\n /* DIM3: Device Interrupt Mask Register, CPU3. */\n\n s->cchip.dim[3] = val;\n\n cpu_irq_change(s->cchip.cpu[3], val & s->cchip.drir);\n\n break;\n\n\n\n case 0x0680: /* DIR2 (RO) */\n\n case 0x06c0: /* DIR3 (RO) */\n\n break;\n\n\n\n case 0x0700: /* IIC2 */\n\n s->cchip.iic[2] = val & 0xffffff;\n\n break;\n\n case 0x0740: /* IIC3 */\n\n s->cchip.iic[3] = val & 0xffffff;\n\n break;\n\n\n\n case 0x0780:\n\n /* PWR: Power Management Control. */\n\n break;\n\n \n\n case 0x0c00: /* CMONCTLA */\n\n case 0x0c40: /* CMONCTLB */\n\n case 0x0c80: /* CMONCNT01 */\n\n case 0x0cc0: /* CMONCNT23 */\n\n break;\n\n\n\n default:\n\n cpu_unassigned_access(cpu_single_env, addr, 1, 0, 0, size);\n\n return;\n\n }\n\n}\n", + "output": "0", + "index": 5800 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int decode_gop_header(IVI5DecContext *ctx, AVCodecContext *avctx)\n\n{\n\n int result, i, p, tile_size, pic_size_indx, mb_size, blk_size;\n\n int quant_mat, blk_size_changed = 0;\n\n IVIBandDesc *band, *band1, *band2;\n\n IVIPicConfig pic_conf;\n\n\n\n ctx->gop_flags = get_bits(&ctx->gb, 8);\n\n\n\n ctx->gop_hdr_size = (ctx->gop_flags & 1) ? get_bits(&ctx->gb, 16) : 0;\n\n\n\n if (ctx->gop_flags & IVI5_IS_PROTECTED)\n\n ctx->lock_word = get_bits_long(&ctx->gb, 32);\n\n\n\n tile_size = (ctx->gop_flags & 0x40) ? 64 << get_bits(&ctx->gb, 2) : 0;\n\n if (tile_size > 256) {\n\n av_log(avctx, AV_LOG_ERROR, \"Invalid tile size: %d\\n\", tile_size);\n\n return -1;\n\n }\n\n\n\n /* decode number of wavelet bands */\n\n /* num_levels * 3 + 1 */\n\n pic_conf.luma_bands = get_bits(&ctx->gb, 2) * 3 + 1;\n\n pic_conf.chroma_bands = get_bits1(&ctx->gb) * 3 + 1;\n\n ctx->is_scalable = pic_conf.luma_bands != 1 || pic_conf.chroma_bands != 1;\n\n if (ctx->is_scalable && (pic_conf.luma_bands != 4 || pic_conf.chroma_bands != 1)) {\n\n av_log(avctx, AV_LOG_ERROR, \"Scalability: unsupported subdivision! Luma bands: %d, chroma bands: %d\\n\",\n\n pic_conf.luma_bands, pic_conf.chroma_bands);\n\n return -1;\n\n }\n\n\n\n pic_size_indx = get_bits(&ctx->gb, 4);\n\n if (pic_size_indx == IVI5_PIC_SIZE_ESC) {\n\n pic_conf.pic_height = get_bits(&ctx->gb, 13);\n\n pic_conf.pic_width = get_bits(&ctx->gb, 13);\n\n } else {\n\n pic_conf.pic_height = ivi5_common_pic_sizes[pic_size_indx * 2 + 1] << 2;\n\n pic_conf.pic_width = ivi5_common_pic_sizes[pic_size_indx * 2 ] << 2;\n\n }\n\n\n\n if (ctx->gop_flags & 2) {\n\n av_log(avctx, AV_LOG_ERROR, \"YV12 picture format not supported!\\n\");\n\n return -1;\n\n }\n\n\n\n pic_conf.chroma_height = (pic_conf.pic_height + 3) >> 2;\n\n pic_conf.chroma_width = (pic_conf.pic_width + 3) >> 2;\n\n\n\n if (!tile_size) {\n\n pic_conf.tile_height = pic_conf.pic_height;\n\n pic_conf.tile_width = pic_conf.pic_width;\n\n } else {\n\n pic_conf.tile_height = pic_conf.tile_width = tile_size;\n\n }\n\n\n\n /* check if picture layout was changed and reallocate buffers */\n\n if (ivi_pic_config_cmp(&pic_conf, &ctx->pic_conf)) {\n\n result = ff_ivi_init_planes(ctx->planes, &pic_conf);\n\n if (result) {\n\n av_log(avctx, AV_LOG_ERROR, \"Couldn't reallocate color planes!\\n\");\n\n return -1;\n\n }\n\n ctx->pic_conf = pic_conf;\n\n blk_size_changed = 1; /* force reallocation of the internal structures */\n\n }\n\n\n\n for (p = 0; p <= 1; p++) {\n\n for (i = 0; i < (!p ? pic_conf.luma_bands : pic_conf.chroma_bands); i++) {\n\n band = &ctx->planes[p].bands[i];\n\n\n\n band->is_halfpel = get_bits1(&ctx->gb);\n\n\n\n mb_size = get_bits1(&ctx->gb);\n\n blk_size = 8 >> get_bits1(&ctx->gb);\n\n mb_size = blk_size << !mb_size;\n\n\n\n blk_size_changed = mb_size != band->mb_size || blk_size != band->blk_size;\n\n if (blk_size_changed) {\n\n band->mb_size = mb_size;\n\n band->blk_size = blk_size;\n\n }\n\n\n\n if (get_bits1(&ctx->gb)) {\n\n av_log(avctx, AV_LOG_ERROR, \"Extended transform info encountered!\\n\");\n\n return -1;\n\n }\n\n\n\n /* select transform function and scan pattern according to plane and band number */\n\n switch ((p << 2) + i) {\n\n case 0:\n\n band->inv_transform = ff_ivi_inverse_slant_8x8;\n\n band->dc_transform = ff_ivi_dc_slant_2d;\n\n band->scan = ff_zigzag_direct;\n\n break;\n\n\n\n case 1:\n\n band->inv_transform = ff_ivi_row_slant8;\n\n band->dc_transform = ff_ivi_dc_row_slant;\n\n band->scan = ff_ivi_vertical_scan_8x8;\n\n break;\n\n\n\n case 2:\n\n band->inv_transform = ff_ivi_col_slant8;\n\n band->dc_transform = ff_ivi_dc_col_slant;\n\n band->scan = ff_ivi_horizontal_scan_8x8;\n\n break;\n\n\n\n case 3:\n\n band->inv_transform = ff_ivi_put_pixels_8x8;\n\n band->dc_transform = ff_ivi_put_dc_pixel_8x8;\n\n band->scan = ff_ivi_horizontal_scan_8x8;\n\n break;\n\n\n\n case 4:\n\n band->inv_transform = ff_ivi_inverse_slant_4x4;\n\n band->dc_transform = ff_ivi_dc_slant_2d;\n\n band->scan = ff_ivi_direct_scan_4x4;\n\n break;\n\n }\n\n\n\n band->is_2d_trans = band->inv_transform == ff_ivi_inverse_slant_8x8 ||\n\n band->inv_transform == ff_ivi_inverse_slant_4x4;\n\n\n\n /* select dequant matrix according to plane and band number */\n\n if (!p) {\n\n quant_mat = (pic_conf.luma_bands > 1) ? i+1 : 0;\n\n } else {\n\n quant_mat = 5;\n\n }\n\n\n\n if (band->blk_size == 8) {\n\n band->intra_base = &ivi5_base_quant_8x8_intra[quant_mat][0];\n\n band->inter_base = &ivi5_base_quant_8x8_inter[quant_mat][0];\n\n band->intra_scale = &ivi5_scale_quant_8x8_intra[quant_mat][0];\n\n band->inter_scale = &ivi5_scale_quant_8x8_inter[quant_mat][0];\n\n } else {\n\n band->intra_base = ivi5_base_quant_4x4_intra;\n\n band->inter_base = ivi5_base_quant_4x4_inter;\n\n band->intra_scale = ivi5_scale_quant_4x4_intra;\n\n band->inter_scale = ivi5_scale_quant_4x4_inter;\n\n }\n\n\n\n if (get_bits(&ctx->gb, 2)) {\n\n av_log(avctx, AV_LOG_ERROR, \"End marker missing!\\n\");\n\n return -1;\n\n }\n\n }\n\n }\n\n\n\n /* copy chroma parameters into the 2nd chroma plane */\n\n for (i = 0; i < pic_conf.chroma_bands; i++) {\n\n band1 = &ctx->planes[1].bands[i];\n\n band2 = &ctx->planes[2].bands[i];\n\n\n\n band2->width = band1->width;\n\n band2->height = band1->height;\n\n band2->mb_size = band1->mb_size;\n\n band2->blk_size = band1->blk_size;\n\n band2->is_halfpel = band1->is_halfpel;\n\n band2->intra_base = band1->intra_base;\n\n band2->inter_base = band1->inter_base;\n\n band2->intra_scale = band1->intra_scale;\n\n band2->inter_scale = band1->inter_scale;\n\n band2->scan = band1->scan;\n\n band2->inv_transform = band1->inv_transform;\n\n band2->dc_transform = band1->dc_transform;\n\n band2->is_2d_trans = band1->is_2d_trans;\n\n }\n\n\n\n /* reallocate internal structures if needed */\n\n if (blk_size_changed) {\n\n result = ff_ivi_init_tiles(ctx->planes, pic_conf.tile_width,\n\n pic_conf.tile_height);\n\n if (result) {\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"Couldn't reallocate internal structures!\\n\");\n\n return -1;\n\n }\n\n }\n\n\n\n if (ctx->gop_flags & 8) {\n\n if (get_bits(&ctx->gb, 3)) {\n\n av_log(avctx, AV_LOG_ERROR, \"Alignment bits are not zero!\\n\");\n\n return -1;\n\n }\n\n\n\n if (get_bits1(&ctx->gb))\n\n skip_bits_long(&ctx->gb, 24); /* skip transparency fill color */\n\n }\n\n\n\n align_get_bits(&ctx->gb);\n\n\n\n skip_bits(&ctx->gb, 23); /* FIXME: unknown meaning */\n\n\n\n /* skip GOP extension if any */\n\n if (get_bits1(&ctx->gb)) {\n\n do {\n\n i = get_bits(&ctx->gb, 16);\n\n } while (i & 0x8000);\n\n }\n\n\n\n align_get_bits(&ctx->gb);\n\n\n\n return 0;\n\n}\n", + "output": "1", + "index": 7126 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int transcode_init(void)\n\n{\n\n int ret = 0, i, j, k;\n\n AVFormatContext *oc;\n\n AVCodecContext *codec, *icodec;\n\n OutputStream *ost;\n\n InputStream *ist;\n\n char error[1024];\n\n int want_sdp = 1;\n\n\n\n /* init framerate emulation */\n\n for (i = 0; i < nb_input_files; i++) {\n\n InputFile *ifile = input_files[i];\n\n if (ifile->rate_emu)\n\n for (j = 0; j < ifile->nb_streams; j++)\n\n input_streams[j + ifile->ist_index]->start = av_gettime();\n\n }\n\n\n\n /* output stream init */\n\n for (i = 0; i < nb_output_files; i++) {\n\n oc = output_files[i]->ctx;\n\n if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {\n\n av_dump_format(oc, i, oc->filename, 1);\n\n av_log(NULL, AV_LOG_ERROR, \"Output file #%d does not contain any stream\\n\", i);\n\n return AVERROR(EINVAL);\n\n }\n\n }\n\n\n\n /* init complex filtergraphs */\n\n for (i = 0; i < nb_filtergraphs; i++)\n\n if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)\n\n return ret;\n\n\n\n /* for each output stream, we compute the right encoding parameters */\n\n for (i = 0; i < nb_output_streams; i++) {\n\n ost = output_streams[i];\n\n oc = output_files[ost->file_index]->ctx;\n\n ist = get_input_stream(ost);\n\n\n\n if (ost->attachment_filename)\n\n continue;\n\n\n\n codec = ost->st->codec;\n\n\n\n if (ist) {\n\n icodec = ist->st->codec;\n\n\n\n ost->st->disposition = ist->st->disposition;\n\n codec->bits_per_raw_sample = icodec->bits_per_raw_sample;\n\n codec->chroma_sample_location = icodec->chroma_sample_location;\n\n }\n\n\n\n if (ost->stream_copy) {\n\n uint64_t extra_size;\n\n\n\n av_assert0(ist && !ost->filter);\n\n\n\n extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;\n\n\n\n if (extra_size > INT_MAX) {\n\n return AVERROR(EINVAL);\n\n }\n\n\n\n /* if stream_copy is selected, no need to decode or encode */\n\n codec->codec_id = icodec->codec_id;\n\n codec->codec_type = icodec->codec_type;\n\n\n\n if (!codec->codec_tag) {\n\n if (!oc->oformat->codec_tag ||\n\n av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||\n\n av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)\n\n codec->codec_tag = icodec->codec_tag;\n\n }\n\n\n\n codec->bit_rate = icodec->bit_rate;\n\n codec->rc_max_rate = icodec->rc_max_rate;\n\n codec->rc_buffer_size = icodec->rc_buffer_size;\n\n codec->field_order = icodec->field_order;\n\n codec->extradata = av_mallocz(extra_size);\n\n if (!codec->extradata) {\n\n return AVERROR(ENOMEM);\n\n }\n\n memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);\n\n codec->extradata_size = icodec->extradata_size;\n\n if (!copy_tb) {\n\n codec->time_base = icodec->time_base;\n\n codec->time_base.num *= icodec->ticks_per_frame;\n\n av_reduce(&codec->time_base.num, &codec->time_base.den,\n\n codec->time_base.num, codec->time_base.den, INT_MAX);\n\n } else\n\n codec->time_base = ist->st->time_base;\n\n\n\n switch (codec->codec_type) {\n\n case AVMEDIA_TYPE_AUDIO:\n\n if (audio_volume != 256) {\n\n av_log(NULL, AV_LOG_FATAL, \"-acodec copy and -vol are incompatible (frames are not decoded)\\n\");\n\n exit_program(1);\n\n }\n\n codec->channel_layout = icodec->channel_layout;\n\n codec->sample_rate = icodec->sample_rate;\n\n codec->channels = icodec->channels;\n\n codec->frame_size = icodec->frame_size;\n\n codec->audio_service_type = icodec->audio_service_type;\n\n codec->block_align = icodec->block_align;\n\n break;\n\n case AVMEDIA_TYPE_VIDEO:\n\n codec->pix_fmt = icodec->pix_fmt;\n\n codec->width = icodec->width;\n\n codec->height = icodec->height;\n\n codec->has_b_frames = icodec->has_b_frames;\n\n if (!codec->sample_aspect_ratio.num) {\n\n codec->sample_aspect_ratio =\n\n ost->st->sample_aspect_ratio =\n\n ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :\n\n ist->st->codec->sample_aspect_ratio.num ?\n\n ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};\n\n }\n\n break;\n\n case AVMEDIA_TYPE_SUBTITLE:\n\n codec->width = icodec->width;\n\n codec->height = icodec->height;\n\n break;\n\n case AVMEDIA_TYPE_DATA:\n\n case AVMEDIA_TYPE_ATTACHMENT:\n\n break;\n\n default:\n\n abort();\n\n }\n\n } else {\n\n if (!ost->enc) {\n\n /* should only happen when a default codec is not present. */\n\n snprintf(error, sizeof(error), \"Automatic encoder selection \"\n\n \"failed for output stream #%d:%d. Default encoder for \"\n\n \"format %s is probably disabled. Please choose an \"\n\n \"encoder manually.\\n\", ost->file_index, ost->index,\n\n oc->oformat->name);\n\n ret = AVERROR(EINVAL);\n\n goto dump_format;\n\n }\n\n\n\n if (ist)\n\n ist->decoding_needed = 1;\n\n ost->encoding_needed = 1;\n\n\n\n switch (codec->codec_type) {\n\n case AVMEDIA_TYPE_AUDIO:\n\n ost->fifo = av_fifo_alloc(1024);\n\n if (!ost->fifo) {\n\n return AVERROR(ENOMEM);\n\n }\n\n\n\n if (!codec->sample_rate)\n\n codec->sample_rate = icodec->sample_rate;\n\n choose_sample_rate(ost->st, ost->enc);\n\n codec->time_base = (AVRational){ 1, codec->sample_rate };\n\n\n\n if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)\n\n codec->sample_fmt = icodec->sample_fmt;\n\n choose_sample_fmt(ost->st, ost->enc);\n\n\n\n if (!codec->channels)\n\n codec->channels = icodec->channels;\n\n if (!codec->channel_layout)\n\n codec->channel_layout = icodec->channel_layout;\n\n if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)\n\n codec->channel_layout = 0;\n\n\n\n icodec->request_channels = codec-> channels;\n\n ost->resample_sample_fmt = icodec->sample_fmt;\n\n ost->resample_sample_rate = icodec->sample_rate;\n\n ost->resample_channels = icodec->channels;\n\n ost->resample_channel_layout = icodec->channel_layout;\n\n break;\n\n case AVMEDIA_TYPE_VIDEO:\n\n if (!ost->filter) {\n\n FilterGraph *fg;\n\n fg = init_simple_filtergraph(ist, ost);\n\n if (configure_video_filters(fg)) {\n\n av_log(NULL, AV_LOG_FATAL, \"Error opening filters!\\n\");\n\n exit(1);\n\n }\n\n }\n\n\n\n /*\n\n * We want CFR output if and only if one of those is true:\n\n * 1) user specified output framerate with -r\n\n * 2) user specified -vsync cfr\n\n * 3) output format is CFR and the user didn't force vsync to\n\n * something else than CFR\n\n *\n\n * in such a case, set ost->frame_rate\n\n */\n\n if (!ost->frame_rate.num && ist &&\n\n (video_sync_method == VSYNC_CFR ||\n\n (video_sync_method == VSYNC_AUTO &&\n\n !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {\n\n ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};\n\n if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {\n\n int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);\n\n ost->frame_rate = ost->enc->supported_framerates[idx];\n\n }\n\n }\n\n if (ost->frame_rate.num) {\n\n codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};\n\n video_sync_method = VSYNC_CFR;\n\n } else if (ist)\n\n codec->time_base = ist->st->time_base;\n\n else\n\n codec->time_base = ost->filter->filter->inputs[0]->time_base;\n\n\n\n codec->width = ost->filter->filter->inputs[0]->w;\n\n codec->height = ost->filter->filter->inputs[0]->h;\n\n codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =\n\n ost->frame_aspect_ratio ? // overridden by the -aspect cli option\n\n av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :\n\n ost->filter->filter->inputs[0]->sample_aspect_ratio;\n\n codec->pix_fmt = ost->filter->filter->inputs[0]->format;\n\n\n\n if (codec->width != icodec->width ||\n\n codec->height != icodec->height ||\n\n codec->pix_fmt != icodec->pix_fmt) {\n\n codec->bits_per_raw_sample = 0;\n\n }\n\n\n\n break;\n\n case AVMEDIA_TYPE_SUBTITLE:\n\n codec->time_base = (AVRational){1, 1000};\n\n break;\n\n default:\n\n abort();\n\n break;\n\n }\n\n /* two pass mode */\n\n if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {\n\n char logfilename[1024];\n\n FILE *f;\n\n\n\n snprintf(logfilename, sizeof(logfilename), \"%s-%d.log\",\n\n pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,\n\n i);\n\n if (!strcmp(ost->enc->name, \"libx264\")) {\n\n av_dict_set(&ost->opts, \"stats\", logfilename, AV_DICT_DONT_OVERWRITE);\n\n } else {\n\n if (codec->flags & CODEC_FLAG_PASS1) {\n\n f = fopen(logfilename, \"wb\");\n\n if (!f) {\n\n av_log(NULL, AV_LOG_FATAL, \"Cannot write log file '%s' for pass-1 encoding: %s\\n\",\n\n logfilename, strerror(errno));\n\n exit_program(1);\n\n }\n\n ost->logfile = f;\n\n } else {\n\n char *logbuffer;\n\n size_t logbuffer_size;\n\n if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {\n\n av_log(NULL, AV_LOG_FATAL, \"Error reading log file '%s' for pass-2 encoding\\n\",\n\n logfilename);\n\n exit_program(1);\n\n }\n\n codec->stats_in = logbuffer;\n\n }\n\n }\n\n }\n\n }\n\n }\n\n\n\n /* open each encoder */\n\n for (i = 0; i < nb_output_streams; i++) {\n\n ost = output_streams[i];\n\n if (ost->encoding_needed) {\n\n AVCodec *codec = ost->enc;\n\n AVCodecContext *dec = NULL;\n\n\n\n if ((ist = get_input_stream(ost)))\n\n dec = ist->st->codec;\n\n if (dec && dec->subtitle_header) {\n\n ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);\n\n if (!ost->st->codec->subtitle_header) {\n\n ret = AVERROR(ENOMEM);\n\n goto dump_format;\n\n }\n\n memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);\n\n ost->st->codec->subtitle_header_size = dec->subtitle_header_size;\n\n }\n\n if (!av_dict_get(ost->opts, \"threads\", NULL, 0))\n\n av_dict_set(&ost->opts, \"threads\", \"auto\", 0);\n\n if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {\n\n snprintf(error, sizeof(error), \"Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height\",\n\n ost->file_index, ost->index);\n\n ret = AVERROR(EINVAL);\n\n goto dump_format;\n\n }\n\n assert_codec_experimental(ost->st->codec, 1);\n\n assert_avoptions(ost->opts);\n\n if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)\n\n av_log(NULL, AV_LOG_WARNING, \"The bitrate parameter is set too low.\"\n\n \"It takes bits/s as argument, not kbits/s\\n\");\n\n extra_size += ost->st->codec->extradata_size;\n\n\n\n if (ost->st->codec->me_threshold)\n\n input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;\n\n }\n\n }\n\n\n\n /* init input streams */\n\n for (i = 0; i < nb_input_streams; i++)\n\n if ((ret = init_input_stream(i, error, sizeof(error))) < 0)\n\n goto dump_format;\n\n\n\n /* discard unused programs */\n\n for (i = 0; i < nb_input_files; i++) {\n\n InputFile *ifile = input_files[i];\n\n for (j = 0; j < ifile->ctx->nb_programs; j++) {\n\n AVProgram *p = ifile->ctx->programs[j];\n\n int discard = AVDISCARD_ALL;\n\n\n\n for (k = 0; k < p->nb_stream_indexes; k++)\n\n if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {\n\n discard = AVDISCARD_DEFAULT;\n\n break;\n\n }\n\n p->discard = discard;\n\n }\n\n }\n\n\n\n /* open files and write file headers */\n\n for (i = 0; i < nb_output_files; i++) {\n\n oc = output_files[i]->ctx;\n\n oc->interrupt_callback = int_cb;\n\n if (avformat_write_header(oc, &output_files[i]->opts) < 0) {\n\n snprintf(error, sizeof(error), \"Could not write header for output file #%d (incorrect codec parameters ?)\", i);\n\n ret = AVERROR(EINVAL);\n\n goto dump_format;\n\n }\n\n assert_avoptions(output_files[i]->opts);\n\n if (strcmp(oc->oformat->name, \"rtp\")) {\n\n want_sdp = 0;\n\n }\n\n }\n\n\n\n dump_format:\n\n /* dump the file output parameters - cannot be done before in case\n\n of stream copy */\n\n for (i = 0; i < nb_output_files; i++) {\n\n av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);\n\n }\n\n\n\n /* dump the stream mapping */\n\n av_log(NULL, AV_LOG_INFO, \"Stream mapping:\\n\");\n\n for (i = 0; i < nb_input_streams; i++) {\n\n ist = input_streams[i];\n\n\n\n for (j = 0; j < ist->nb_filters; j++) {\n\n AVFilterLink *link = ist->filters[j]->filter->outputs[0];\n\n if (ist->filters[j]->graph->graph_desc) {\n\n av_log(NULL, AV_LOG_INFO, \" Stream #%d:%d (%s) -> %s\",\n\n ist->file_index, ist->st->index, ist->dec ? ist->dec->name : \"?\",\n\n link->dst->filter->name);\n\n if (link->dst->input_count > 1)\n\n av_log(NULL, AV_LOG_INFO, \":%s\", link->dstpad->name);\n\n if (nb_filtergraphs > 1)\n\n av_log(NULL, AV_LOG_INFO, \" (graph %d)\", ist->filters[j]->graph->index);\n\n av_log(NULL, AV_LOG_INFO, \"\\n\");\n\n }\n\n }\n\n }\n\n\n\n for (i = 0; i < nb_output_streams; i++) {\n\n ost = output_streams[i];\n\n\n\n if (ost->attachment_filename) {\n\n /* an attached file */\n\n av_log(NULL, AV_LOG_INFO, \" File %s -> Stream #%d:%d\\n\",\n\n ost->attachment_filename, ost->file_index, ost->index);\n\n continue;\n\n }\n\n\n\n if (ost->filter && ost->filter->graph->graph_desc) {\n\n /* output from a complex graph */\n\n AVFilterLink *link = ost->filter->filter->inputs[0];\n\n av_log(NULL, AV_LOG_INFO, \" %s\", link->src->filter->name);\n\n if (link->src->output_count > 1)\n\n av_log(NULL, AV_LOG_INFO, \":%s\", link->srcpad->name);\n\n if (nb_filtergraphs > 1)\n\n av_log(NULL, AV_LOG_INFO, \" (graph %d)\", ost->filter->graph->index);\n\n\n\n av_log(NULL, AV_LOG_INFO, \" -> Stream #%d:%d (%s)\\n\", ost->file_index,\n\n ost->index, ost->enc ? ost->enc->name : \"?\");\n\n continue;\n\n }\n\n\n\n av_log(NULL, AV_LOG_INFO, \" Stream #%d:%d -> #%d:%d\",\n\n input_streams[ost->source_index]->file_index,\n\n input_streams[ost->source_index]->st->index,\n\n ost->file_index,\n\n ost->index);\n\n if (ost->sync_ist != input_streams[ost->source_index])\n\n av_log(NULL, AV_LOG_INFO, \" [sync #%d:%d]\",\n\n ost->sync_ist->file_index,\n\n ost->sync_ist->st->index);\n\n if (ost->stream_copy)\n\n av_log(NULL, AV_LOG_INFO, \" (copy)\");\n\n else\n\n av_log(NULL, AV_LOG_INFO, \" (%s -> %s)\", input_streams[ost->source_index]->dec ?\n\n input_streams[ost->source_index]->dec->name : \"?\",\n\n ost->enc ? ost->enc->name : \"?\");\n\n av_log(NULL, AV_LOG_INFO, \"\\n\");\n\n }\n\n\n\n if (ret) {\n\n av_log(NULL, AV_LOG_ERROR, \"%s\\n\", error);\n\n return ret;\n\n }\n\n\n\n if (want_sdp) {\n\n print_sdp();\n\n }\n\n\n\n return 0;\n\n}\n", + "output": "1", + "index": 3629 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int update_prob(VP56RangeCoder *c, int p)\n\n{\n\n static const int inv_map_table[254] = {\n\n 7, 20, 33, 46, 59, 72, 85, 98, 111, 124, 137, 150, 163, 176,\n\n 189, 202, 215, 228, 241, 254, 1, 2, 3, 4, 5, 6, 8, 9,\n\n 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24,\n\n 25, 26, 27, 28, 29, 30, 31, 32, 34, 35, 36, 37, 38, 39,\n\n 40, 41, 42, 43, 44, 45, 47, 48, 49, 50, 51, 52, 53, 54,\n\n 55, 56, 57, 58, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69,\n\n 70, 71, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84,\n\n 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 99, 100,\n\n 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 112, 113, 114, 115,\n\n 116, 117, 118, 119, 120, 121, 122, 123, 125, 126, 127, 128, 129, 130,\n\n 131, 132, 133, 134, 135, 136, 138, 139, 140, 141, 142, 143, 144, 145,\n\n 146, 147, 148, 149, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160,\n\n 161, 162, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175,\n\n 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 190, 191,\n\n 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 203, 204, 205, 206,\n\n 207, 208, 209, 210, 211, 212, 213, 214, 216, 217, 218, 219, 220, 221,\n\n 222, 223, 224, 225, 226, 227, 229, 230, 231, 232, 233, 234, 235, 236,\n\n 237, 238, 239, 240, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251,\n\n 252, 253,\n\n };\n\n int d;\n\n\n\n /* This code is trying to do a differential probability update. For a\n\n * current probability A in the range [1, 255], the difference to a new\n\n * probability of any value can be expressed differentially as 1-A,255-A\n\n * where some part of this (absolute range) exists both in positive as\n\n * well as the negative part, whereas another part only exists in one\n\n * half. We're trying to code this shared part differentially, i.e.\n\n * times two where the value of the lowest bit specifies the sign, and\n\n * the single part is then coded on top of this. This absolute difference\n\n * then again has a value of [0,254], but a bigger value in this range\n\n * indicates that we're further away from the original value A, so we\n\n * can code this as a VLC code, since higher values are increasingly\n\n * unlikely. The first 20 values in inv_map_table[] allow 'cheap, rough'\n\n * updates vs. the 'fine, exact' updates further down the range, which\n\n * adds one extra dimension to this differential update model. */\n\n\n\n if (!vp8_rac_get(c)) {\n\n d = vp8_rac_get_uint(c, 4) + 0;\n\n } else if (!vp8_rac_get(c)) {\n\n d = vp8_rac_get_uint(c, 4) + 16;\n\n } else if (!vp8_rac_get(c)) {\n\n d = vp8_rac_get_uint(c, 5) + 32;\n\n } else {\n\n d = vp8_rac_get_uint(c, 7);\n\n if (d >= 65)\n\n d = (d << 1) - 65 + vp8_rac_get(c);\n\n d += 64;\n\n }\n\n\n\n return p <= 128 ? 1 + inv_recenter_nonneg(inv_map_table[d], p - 1) :\n\n 255 - inv_recenter_nonneg(inv_map_table[d], 255 - p);\n\n}\n", + "output": "1", + "index": 22814 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void iv_Decode_Chunk(Indeo3DecodeContext *s,\n\n uint8_t *cur, uint8_t *ref, int width, int height,\n\n const uint8_t *buf1, long cb_offset, const uint8_t *hdr,\n\n const uint8_t *buf2, int min_width_160)\n\n{\n\n uint8_t bit_buf;\n\n unsigned long bit_pos, lv, lv1, lv2;\n\n long *width_tbl, width_tbl_arr[10];\n\n const signed char *ref_vectors;\n\n uint8_t *cur_frm_pos, *ref_frm_pos, *cp, *cp2;\n\n uint32_t *cur_lp, *ref_lp;\n\n const uint32_t *correction_lp[2], *correctionloworder_lp[2], *correctionhighorder_lp[2];\n\n uint8_t *correction_type_sp[2];\n\n struct ustr strip_tbl[20], *strip;\n\n int i, j, k, lp1, lp2, flag1, cmd, blks_width, blks_height, region_160_width,\n\n rle_v1, rle_v2, rle_v3;\n\n unsigned short res;\n\n\n\n bit_buf = 0;\n\n ref_vectors = NULL;\n\n\n\n width_tbl = width_tbl_arr + 1;\n\n i = (width < 0 ? width + 3 : width)/4;\n\n for(j = -1; j < 8; j++)\n\n width_tbl[j] = i * j;\n\n\n\n strip = strip_tbl;\n\n\n\n for(region_160_width = 0; region_160_width < (width - min_width_160); region_160_width += min_width_160);\n\n\n\n strip->ypos = strip->xpos = 0;\n\n for(strip->width = min_width_160; width > strip->width; strip->width *= 2);\n\n strip->height = height;\n\n strip->split_direction = 0;\n\n strip->split_flag = 0;\n\n strip->usl7 = 0;\n\n\n\n bit_pos = 0;\n\n\n\n rle_v1 = rle_v2 = rle_v3 = 0;\n\n\n\n while(strip >= strip_tbl) {\n\n if(bit_pos <= 0) {\n\n bit_pos = 8;\n\n bit_buf = *buf1++;\n\n\n\n\n bit_pos -= 2;\n\n cmd = (bit_buf >> bit_pos) & 0x03;\n\n\n\n if(cmd == 0) {\n\n strip++;\n\n\n\n\n\n memcpy(strip, strip-1, sizeof(*strip));\n\n strip->split_flag = 1;\n\n strip->split_direction = 0;\n\n strip->height = (strip->height > 8 ? ((strip->height+8)>>4)<<3 : 4);\n\n continue;\n\n } else if(cmd == 1) {\n\n strip++;\n\n\n\n\n\n memcpy(strip, strip-1, sizeof(*strip));\n\n strip->split_flag = 1;\n\n strip->split_direction = 1;\n\n strip->width = (strip->width > 8 ? ((strip->width+8)>>4)<<3 : 4);\n\n continue;\n\n } else if(cmd == 2) {\n\n if(strip->usl7 == 0) {\n\n strip->usl7 = 1;\n\n ref_vectors = NULL;\n\n continue;\n\n\n } else if(cmd == 3) {\n\n if(strip->usl7 == 0) {\n\n strip->usl7 = 1;\n\n ref_vectors = (const signed char*)buf2 + (*buf1 * 2);\n\n buf1++;\n\n continue;\n\n\n\n\n\n cur_frm_pos = cur + width * strip->ypos + strip->xpos;\n\n\n\n if((blks_width = strip->width) < 0)\n\n blks_width += 3;\n\n blks_width >>= 2;\n\n blks_height = strip->height;\n\n\n\n if(ref_vectors != NULL) {\n\n ref_frm_pos = ref + (ref_vectors[0] + strip->ypos) * width +\n\n ref_vectors[1] + strip->xpos;\n\n } else\n\n ref_frm_pos = cur_frm_pos - width_tbl[4];\n\n\n\n if(cmd == 2) {\n\n if(bit_pos <= 0) {\n\n bit_pos = 8;\n\n bit_buf = *buf1++;\n\n\n\n\n bit_pos -= 2;\n\n cmd = (bit_buf >> bit_pos) & 0x03;\n\n\n\n if(cmd == 0 || ref_vectors != NULL) {\n\n for(lp1 = 0; lp1 < blks_width; lp1++) {\n\n for(i = 0, j = 0; i < blks_height; i++, j += width_tbl[1])\n\n ((uint32_t *)cur_frm_pos)[j] = ((uint32_t *)ref_frm_pos)[j];\n\n cur_frm_pos += 4;\n\n ref_frm_pos += 4;\n\n\n } else if(cmd != 1)\n\n return;\n\n } else {\n\n k = *buf1 >> 4;\n\n j = *buf1 & 0x0f;\n\n buf1++;\n\n lv = j + cb_offset;\n\n\n\n if((lv - 8) <= 7 && (k == 0 || k == 3 || k == 10)) {\n\n cp2 = s->ModPred + ((lv - 8) << 7);\n\n cp = ref_frm_pos;\n\n for(i = 0; i < blks_width << 2; i++) {\n\n int v = *cp >> 1;\n\n *(cp++) = cp2[v];\n\n\n\n\n\n if(k == 1 || k == 4) {\n\n lv = (hdr[j] & 0xf) + cb_offset;\n\n correction_type_sp[0] = s->corrector_type + (lv << 8);\n\n correction_lp[0] = correction + (lv << 8);\n\n lv = (hdr[j] >> 4) + cb_offset;\n\n correction_lp[1] = correction + (lv << 8);\n\n correction_type_sp[1] = s->corrector_type + (lv << 8);\n\n } else {\n\n correctionloworder_lp[0] = correctionloworder_lp[1] = correctionloworder + (lv << 8);\n\n correctionhighorder_lp[0] = correctionhighorder_lp[1] = correctionhighorder + (lv << 8);\n\n correction_type_sp[0] = correction_type_sp[1] = s->corrector_type + (lv << 8);\n\n correction_lp[0] = correction_lp[1] = correction + (lv << 8);\n\n\n\n\n switch(k) {\n\n case 1:\n\n case 0: /********** CASE 0 **********/\n\n for( ; blks_height > 0; blks_height -= 4) {\n\n for(lp1 = 0; lp1 < blks_width; lp1++) {\n\n for(lp2 = 0; lp2 < 4; ) {\n\n k = *buf1++;\n\n cur_lp = ((uint32_t *)cur_frm_pos) + width_tbl[lp2];\n\n ref_lp = ((uint32_t *)ref_frm_pos) + width_tbl[lp2];\n\n\n\n switch(correction_type_sp[0][k]) {\n\n case 0:\n\n *cur_lp = le2me_32(((le2me_32(*ref_lp) >> 1) + correction_lp[lp2 & 0x01][k]) << 1);\n\n lp2++;\n\n\n case 1:\n\n res = ((le2me_16(((unsigned short *)(ref_lp))[0]) >> 1) + correction_lp[lp2 & 0x01][*buf1]) << 1;\n\n ((unsigned short *)cur_lp)[0] = le2me_16(res);\n\n res = ((le2me_16(((unsigned short *)(ref_lp))[1]) >> 1) + correction_lp[lp2 & 0x01][k]) << 1;\n\n ((unsigned short *)cur_lp)[1] = le2me_16(res);\n\n buf1++;\n\n lp2++;\n\n\n case 2:\n\n if(lp2 == 0) {\n\n for(i = 0, j = 0; i < 2; i++, j += width_tbl[1])\n\n cur_lp[j] = ref_lp[j];\n\n lp2 += 2;\n\n\n\n case 3:\n\n if(lp2 < 2) {\n\n for(i = 0, j = 0; i < (3 - lp2); i++, j += width_tbl[1])\n\n cur_lp[j] = ref_lp[j];\n\n lp2 = 3;\n\n\n\n case 8:\n\n if(lp2 == 0) {\n\n RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3)\n\n\n\n if(rle_v1 == 1 || ref_vectors != NULL) {\n\n for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])\n\n cur_lp[j] = ref_lp[j];\n\n\n\n\n RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2)\n\n\n } else {\n\n rle_v1 = 1;\n\n rle_v2 = *buf1 - 1;\n\n\n case 5:\n\n LP2_CHECK(buf1,rle_v3,lp2)\n\n case 4:\n\n for(i = 0, j = 0; i < (4 - lp2); i++, j += width_tbl[1])\n\n cur_lp[j] = ref_lp[j];\n\n lp2 = 4;\n\n\n\n\n case 7:\n\n if(rle_v3 != 0)\n\n rle_v3 = 0;\n\n else {\n\n buf1--;\n\n rle_v3 = 1;\n\n\n case 6:\n\n if(ref_vectors != NULL) {\n\n for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])\n\n cur_lp[j] = ref_lp[j];\n\n\n lp2 = 4;\n\n\n\n\n case 9:\n\n lv1 = *buf1++;\n\n lv = (lv1 & 0x7F) << 1;\n\n lv += (lv << 8);\n\n lv += (lv << 16);\n\n for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])\n\n cur_lp[j] = lv;\n\n\n\n LV1_CHECK(buf1,rle_v3,lv1,lp2)\n\n\n default:\n\n return;\n\n\n\n\n\n cur_frm_pos += 4;\n\n ref_frm_pos += 4;\n\n\n\n\n cur_frm_pos += ((width - blks_width) * 4);\n\n ref_frm_pos += ((width - blks_width) * 4);\n\n\n\n\n\n case 4:\n\n case 3: /********** CASE 3 **********/\n\n if(ref_vectors != NULL)\n\n return;\n\n flag1 = 1;\n\n\n\n for( ; blks_height > 0; blks_height -= 8) {\n\n for(lp1 = 0; lp1 < blks_width; lp1++) {\n\n for(lp2 = 0; lp2 < 4; ) {\n\n k = *buf1++;\n\n\n\n cur_lp = ((uint32_t *)cur_frm_pos) + width_tbl[lp2 * 2];\n\n ref_lp = ((uint32_t *)cur_frm_pos) + width_tbl[(lp2 * 2) - 1];\n\n\n\n switch(correction_type_sp[lp2 & 0x01][k]) {\n\n case 0:\n\n cur_lp[width_tbl[1]] = le2me_32(((le2me_32(*ref_lp) >> 1) + correction_lp[lp2 & 0x01][k]) << 1);\n\n if(lp2 > 0 || flag1 == 0 || strip->ypos != 0)\n\n cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;\n\n else\n\n cur_lp[0] = le2me_32(((le2me_32(*ref_lp) >> 1) + correction_lp[lp2 & 0x01][k]) << 1);\n\n lp2++;\n\n\n\n\n case 1:\n\n res = ((le2me_16(((unsigned short *)ref_lp)[0]) >> 1) + correction_lp[lp2 & 0x01][*buf1]) << 1;\n\n ((unsigned short *)cur_lp)[width_tbl[2]] = le2me_16(res);\n\n res = ((le2me_16(((unsigned short *)ref_lp)[1]) >> 1) + correction_lp[lp2 & 0x01][k]) << 1;\n\n ((unsigned short *)cur_lp)[width_tbl[2]+1] = le2me_16(res);\n\n\n\n if(lp2 > 0 || flag1 == 0 || strip->ypos != 0)\n\n cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;\n\n else\n\n cur_lp[0] = cur_lp[width_tbl[1]];\n\n buf1++;\n\n lp2++;\n\n\n\n\n case 2:\n\n if(lp2 == 0) {\n\n for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])\n\n cur_lp[j] = *ref_lp;\n\n lp2 += 2;\n\n\n\n\n\n case 3:\n\n if(lp2 < 2) {\n\n for(i = 0, j = 0; i < 6 - (lp2 * 2); i++, j += width_tbl[1])\n\n cur_lp[j] = *ref_lp;\n\n lp2 = 3;\n\n\n\n\n\n case 6:\n\n lp2 = 4;\n\n\n\n\n case 7:\n\n if(rle_v3 != 0)\n\n rle_v3 = 0;\n\n else {\n\n buf1--;\n\n rle_v3 = 1;\n\n\n lp2 = 4;\n\n\n\n\n case 8:\n\n if(lp2 == 0) {\n\n RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3)\n\n\n\n if(rle_v1 == 1) {\n\n for(i = 0, j = 0; i < 8; i++, j += width_tbl[1])\n\n cur_lp[j] = ref_lp[j];\n\n\n\n\n RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2)\n\n\n } else {\n\n rle_v2 = (*buf1) - 1;\n\n rle_v1 = 1;\n\n\n case 5:\n\n LP2_CHECK(buf1,rle_v3,lp2)\n\n case 4:\n\n for(i = 0, j = 0; i < 8 - (lp2 * 2); i++, j += width_tbl[1])\n\n cur_lp[j] = *ref_lp;\n\n lp2 = 4;\n\n\n\n\n case 9:\n\n av_log(s->avctx, AV_LOG_ERROR, \"UNTESTED.\\n\");\n\n lv1 = *buf1++;\n\n lv = (lv1 & 0x7F) << 1;\n\n lv += (lv << 8);\n\n lv += (lv << 16);\n\n\n\n for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])\n\n cur_lp[j] = lv;\n\n\n\n LV1_CHECK(buf1,rle_v3,lv1,lp2)\n\n\n\n\n default:\n\n return;\n\n\n\n\n\n cur_frm_pos += 4;\n\n\n\n\n cur_frm_pos += (((width * 2) - blks_width) * 4);\n\n flag1 = 0;\n\n\n\n\n\n case 10: /********** CASE 10 **********/\n\n if(ref_vectors == NULL) {\n\n flag1 = 1;\n\n\n\n for( ; blks_height > 0; blks_height -= 8) {\n\n for(lp1 = 0; lp1 < blks_width; lp1 += 2) {\n\n for(lp2 = 0; lp2 < 4; ) {\n\n k = *buf1++;\n\n cur_lp = ((uint32_t *)cur_frm_pos) + width_tbl[lp2 * 2];\n\n ref_lp = ((uint32_t *)cur_frm_pos) + width_tbl[(lp2 * 2) - 1];\n\n lv1 = ref_lp[0];\n\n lv2 = ref_lp[1];\n\n if(lp2 == 0 && flag1 != 0) {\n\n#ifdef WORDS_BIGENDIAN\n\n lv1 = lv1 & 0xFF00FF00;\n\n lv1 = (lv1 >> 8) | lv1;\n\n lv2 = lv2 & 0xFF00FF00;\n\n lv2 = (lv2 >> 8) | lv2;\n\n#else\n\n lv1 = lv1 & 0x00FF00FF;\n\n lv1 = (lv1 << 8) | lv1;\n\n lv2 = lv2 & 0x00FF00FF;\n\n lv2 = (lv2 << 8) | lv2;\n\n#endif\n\n\n\n\n switch(correction_type_sp[lp2 & 0x01][k]) {\n\n case 0:\n\n cur_lp[width_tbl[1]] = le2me_32(((le2me_32(lv1) >> 1) + correctionloworder_lp[lp2 & 0x01][k]) << 1);\n\n cur_lp[width_tbl[1]+1] = le2me_32(((le2me_32(lv2) >> 1) + correctionhighorder_lp[lp2 & 0x01][k]) << 1);\n\n if(lp2 > 0 || strip->ypos != 0 || flag1 == 0) {\n\n cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;\n\n cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;\n\n } else {\n\n cur_lp[0] = cur_lp[width_tbl[1]];\n\n cur_lp[1] = cur_lp[width_tbl[1]+1];\n\n\n lp2++;\n\n\n\n\n case 1:\n\n cur_lp[width_tbl[1]] = le2me_32(((le2me_32(lv1) >> 1) + correctionloworder_lp[lp2 & 0x01][*buf1]) << 1);\n\n cur_lp[width_tbl[1]+1] = le2me_32(((le2me_32(lv2) >> 1) + correctionloworder_lp[lp2 & 0x01][k]) << 1);\n\n if(lp2 > 0 || strip->ypos != 0 || flag1 == 0) {\n\n cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;\n\n cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;\n\n } else {\n\n cur_lp[0] = cur_lp[width_tbl[1]];\n\n cur_lp[1] = cur_lp[width_tbl[1]+1];\n\n\n buf1++;\n\n lp2++;\n\n\n\n\n case 2:\n\n if(lp2 == 0) {\n\n if(flag1 != 0) {\n\n for(i = 0, j = width_tbl[1]; i < 3; i++, j += width_tbl[1]) {\n\n cur_lp[j] = lv1;\n\n cur_lp[j+1] = lv2;\n\n\n cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;\n\n cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;\n\n } else {\n\n for(i = 0, j = 0; i < 4; i++, j += width_tbl[1]) {\n\n cur_lp[j] = lv1;\n\n cur_lp[j+1] = lv2;\n\n\n\n lp2 += 2;\n\n\n\n\n\n case 3:\n\n if(lp2 < 2) {\n\n if(lp2 == 0 && flag1 != 0) {\n\n for(i = 0, j = width_tbl[1]; i < 5; i++, j += width_tbl[1]) {\n\n cur_lp[j] = lv1;\n\n cur_lp[j+1] = lv2;\n\n\n cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;\n\n cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;\n\n } else {\n\n for(i = 0, j = 0; i < 6 - (lp2 * 2); i++, j += width_tbl[1]) {\n\n cur_lp[j] = lv1;\n\n cur_lp[j+1] = lv2;\n\n\n\n lp2 = 3;\n\n\n\n\n\n case 8:\n\n if(lp2 == 0) {\n\n RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3)\n\n if(rle_v1 == 1) {\n\n if(flag1 != 0) {\n\n for(i = 0, j = width_tbl[1]; i < 7; i++, j += width_tbl[1]) {\n\n cur_lp[j] = lv1;\n\n cur_lp[j+1] = lv2;\n\n\n cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;\n\n cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;\n\n } else {\n\n for(i = 0, j = 0; i < 8; i++, j += width_tbl[1]) {\n\n cur_lp[j] = lv1;\n\n cur_lp[j+1] = lv2;\n\n\n\n\n RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2)\n\n\n } else {\n\n rle_v1 = 1;\n\n rle_v2 = (*buf1) - 1;\n\n\n case 5:\n\n LP2_CHECK(buf1,rle_v3,lp2)\n\n case 4:\n\n if(lp2 == 0 && flag1 != 0) {\n\n for(i = 0, j = width_tbl[1]; i < 7; i++, j += width_tbl[1]) {\n\n cur_lp[j] = lv1;\n\n cur_lp[j+1] = lv2;\n\n\n cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;\n\n cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;\n\n } else {\n\n for(i = 0, j = 0; i < 8 - (lp2 * 2); i++, j += width_tbl[1]) {\n\n cur_lp[j] = lv1;\n\n cur_lp[j+1] = lv2;\n\n\n\n lp2 = 4;\n\n\n\n\n case 6:\n\n lp2 = 4;\n\n\n\n\n case 7:\n\n if(lp2 == 0) {\n\n if(rle_v3 != 0)\n\n rle_v3 = 0;\n\n else {\n\n buf1--;\n\n rle_v3 = 1;\n\n\n lp2 = 4;\n\n\n\n\n\n case 9:\n\n av_log(s->avctx, AV_LOG_ERROR, \"UNTESTED.\\n\");\n\n lv1 = *buf1;\n\n lv = (lv1 & 0x7F) << 1;\n\n lv += (lv << 8);\n\n lv += (lv << 16);\n\n for(i = 0, j = 0; i < 8; i++, j += width_tbl[1])\n\n cur_lp[j] = lv;\n\n LV1_CHECK(buf1,rle_v3,lv1,lp2)\n\n\n\n\n default:\n\n return;\n\n\n\n\n\n cur_frm_pos += 8;\n\n\n\n\n cur_frm_pos += (((width * 2) - blks_width) * 4);\n\n flag1 = 0;\n\n\n } else {\n\n for( ; blks_height > 0; blks_height -= 8) {\n\n for(lp1 = 0; lp1 < blks_width; lp1 += 2) {\n\n for(lp2 = 0; lp2 < 4; ) {\n\n k = *buf1++;\n\n cur_lp = ((uint32_t *)cur_frm_pos) + width_tbl[lp2 * 2];\n\n ref_lp = ((uint32_t *)ref_frm_pos) + width_tbl[lp2 * 2];\n\n\n\n switch(correction_type_sp[lp2 & 0x01][k]) {\n\n case 0:\n\n lv1 = correctionloworder_lp[lp2 & 0x01][k];\n\n lv2 = correctionhighorder_lp[lp2 & 0x01][k];\n\n cur_lp[0] = le2me_32(((le2me_32(ref_lp[0]) >> 1) + lv1) << 1);\n\n cur_lp[1] = le2me_32(((le2me_32(ref_lp[1]) >> 1) + lv2) << 1);\n\n cur_lp[width_tbl[1]] = le2me_32(((le2me_32(ref_lp[width_tbl[1]]) >> 1) + lv1) << 1);\n\n cur_lp[width_tbl[1]+1] = le2me_32(((le2me_32(ref_lp[width_tbl[1]+1]) >> 1) + lv2) << 1);\n\n lp2++;\n\n\n\n\n case 1:\n\n lv1 = correctionloworder_lp[lp2 & 0x01][*buf1++];\n\n lv2 = correctionloworder_lp[lp2 & 0x01][k];\n\n cur_lp[0] = le2me_32(((le2me_32(ref_lp[0]) >> 1) + lv1) << 1);\n\n cur_lp[1] = le2me_32(((le2me_32(ref_lp[1]) >> 1) + lv2) << 1);\n\n cur_lp[width_tbl[1]] = le2me_32(((le2me_32(ref_lp[width_tbl[1]]) >> 1) + lv1) << 1);\n\n cur_lp[width_tbl[1]+1] = le2me_32(((le2me_32(ref_lp[width_tbl[1]+1]) >> 1) + lv2) << 1);\n\n lp2++;\n\n\n\n\n case 2:\n\n if(lp2 == 0) {\n\n for(i = 0, j = 0; i < 4; i++, j += width_tbl[1]) {\n\n cur_lp[j] = ref_lp[j];\n\n cur_lp[j+1] = ref_lp[j+1];\n\n\n lp2 += 2;\n\n\n\n\n\n case 3:\n\n if(lp2 < 2) {\n\n for(i = 0, j = 0; i < 6 - (lp2 * 2); i++, j += width_tbl[1]) {\n\n cur_lp[j] = ref_lp[j];\n\n cur_lp[j+1] = ref_lp[j+1];\n\n\n lp2 = 3;\n\n\n\n\n\n case 8:\n\n if(lp2 == 0) {\n\n RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3)\n\n for(i = 0, j = 0; i < 8; i++, j += width_tbl[1]) {\n\n ((uint32_t *)cur_frm_pos)[j] = ((uint32_t *)ref_frm_pos)[j];\n\n ((uint32_t *)cur_frm_pos)[j+1] = ((uint32_t *)ref_frm_pos)[j+1];\n\n\n RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2)\n\n\n } else {\n\n rle_v1 = 1;\n\n rle_v2 = (*buf1) - 1;\n\n\n case 5:\n\n case 7:\n\n LP2_CHECK(buf1,rle_v3,lp2)\n\n case 6:\n\n case 4:\n\n for(i = 0, j = 0; i < 8 - (lp2 * 2); i++, j += width_tbl[1]) {\n\n cur_lp[j] = ref_lp[j];\n\n cur_lp[j+1] = ref_lp[j+1];\n\n\n lp2 = 4;\n\n\n\n\n case 9:\n\n av_log(s->avctx, AV_LOG_ERROR, \"UNTESTED.\\n\");\n\n lv1 = *buf1;\n\n lv = (lv1 & 0x7F) << 1;\n\n lv += (lv << 8);\n\n lv += (lv << 16);\n\n for(i = 0, j = 0; i < 8; i++, j += width_tbl[1])\n\n ((uint32_t *)cur_frm_pos)[j] = ((uint32_t *)cur_frm_pos)[j+1] = lv;\n\n LV1_CHECK(buf1,rle_v3,lv1,lp2)\n\n\n\n\n default:\n\n return;\n\n\n\n\n\n cur_frm_pos += 8;\n\n ref_frm_pos += 8;\n\n\n\n\n cur_frm_pos += (((width * 2) - blks_width) * 4);\n\n ref_frm_pos += (((width * 2) - blks_width) * 4);\n\n\n\n\n\n\n case 11: /********** CASE 11 **********/\n\n if(ref_vectors == NULL)\n\n return;\n\n\n\n for( ; blks_height > 0; blks_height -= 8) {\n\n for(lp1 = 0; lp1 < blks_width; lp1++) {\n\n for(lp2 = 0; lp2 < 4; ) {\n\n k = *buf1++;\n\n cur_lp = ((uint32_t *)cur_frm_pos) + width_tbl[lp2 * 2];\n\n ref_lp = ((uint32_t *)ref_frm_pos) + width_tbl[lp2 * 2];\n\n\n\n switch(correction_type_sp[lp2 & 0x01][k]) {\n\n case 0:\n\n cur_lp[0] = le2me_32(((le2me_32(*ref_lp) >> 1) + correction_lp[lp2 & 0x01][k]) << 1);\n\n cur_lp[width_tbl[1]] = le2me_32(((le2me_32(ref_lp[width_tbl[1]]) >> 1) + correction_lp[lp2 & 0x01][k]) << 1);\n\n lp2++;\n\n\n\n\n case 1:\n\n lv1 = (unsigned short)(correction_lp[lp2 & 0x01][*buf1++]);\n\n lv2 = (unsigned short)(correction_lp[lp2 & 0x01][k]);\n\n res = (unsigned short)(((le2me_16(((unsigned short *)ref_lp)[0]) >> 1) + lv1) << 1);\n\n ((unsigned short *)cur_lp)[0] = le2me_16(res);\n\n res = (unsigned short)(((le2me_16(((unsigned short *)ref_lp)[1]) >> 1) + lv2) << 1);\n\n ((unsigned short *)cur_lp)[1] = le2me_16(res);\n\n res = (unsigned short)(((le2me_16(((unsigned short *)ref_lp)[width_tbl[2]]) >> 1) + lv1) << 1);\n\n ((unsigned short *)cur_lp)[width_tbl[2]] = le2me_16(res);\n\n res = (unsigned short)(((le2me_16(((unsigned short *)ref_lp)[width_tbl[2]+1]) >> 1) + lv2) << 1);\n\n ((unsigned short *)cur_lp)[width_tbl[2]+1] = le2me_16(res);\n\n lp2++;\n\n\n\n\n case 2:\n\n if(lp2 == 0) {\n\n for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])\n\n cur_lp[j] = ref_lp[j];\n\n lp2 += 2;\n\n\n\n\n\n case 3:\n\n if(lp2 < 2) {\n\n for(i = 0, j = 0; i < 6 - (lp2 * 2); i++, j += width_tbl[1])\n\n cur_lp[j] = ref_lp[j];\n\n lp2 = 3;\n\n\n\n\n\n case 8:\n\n if(lp2 == 0) {\n\n RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3)\n\n\n\n for(i = 0, j = 0; i < 8; i++, j += width_tbl[1])\n\n cur_lp[j] = ref_lp[j];\n\n\n\n RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2)\n\n\n } else {\n\n rle_v1 = 1;\n\n rle_v2 = (*buf1) - 1;\n\n\n case 5:\n\n case 7:\n\n LP2_CHECK(buf1,rle_v3,lp2)\n\n case 4:\n\n case 6:\n\n for(i = 0, j = 0; i < 8 - (lp2 * 2); i++, j += width_tbl[1])\n\n cur_lp[j] = ref_lp[j];\n\n lp2 = 4;\n\n\n\n\n case 9:\n\n av_log(s->avctx, AV_LOG_ERROR, \"UNTESTED.\\n\");\n\n lv1 = *buf1++;\n\n lv = (lv1 & 0x7F) << 1;\n\n lv += (lv << 8);\n\n lv += (lv << 16);\n\n for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])\n\n cur_lp[j] = lv;\n\n LV1_CHECK(buf1,rle_v3,lv1,lp2)\n\n\n\n\n default:\n\n return;\n\n\n\n\n\n cur_frm_pos += 4;\n\n ref_frm_pos += 4;\n\n\n\n\n cur_frm_pos += (((width * 2) - blks_width) * 4);\n\n ref_frm_pos += (((width * 2) - blks_width) * 4);\n\n\n\n\n\n default:\n\n return;\n\n\n\n\n\n if(strip < strip_tbl)\n\n return;\n\n\n\n for( ; strip >= strip_tbl; strip--) {\n\n if(strip->split_flag != 0) {\n\n strip->split_flag = 0;\n\n strip->usl7 = (strip-1)->usl7;\n\n\n\n if(strip->split_direction) {\n\n strip->xpos += strip->width;\n\n strip->width = (strip-1)->width - strip->width;\n\n if(region_160_width <= strip->xpos && width < strip->width + strip->xpos)\n\n strip->width = width - strip->xpos;\n\n } else {\n\n strip->ypos += strip->height;\n\n strip->height = (strip-1)->height - strip->height;\n\n\n\n\n\n", + "output": "1", + "index": 6349 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int handle_p_frame_apng(AVCodecContext *avctx, PNGDecContext *s,\n\n AVFrame *p)\n\n{\n\n size_t x, y;\n\n uint8_t *buffer = av_malloc(s->image_linesize * s->height);\n\n\n\n if (!buffer)\n\n return AVERROR(ENOMEM);\n\n\n\n if (s->blend_op == APNG_BLEND_OP_OVER &&\n\n avctx->pix_fmt != AV_PIX_FMT_RGBA &&\n\n avctx->pix_fmt != AV_PIX_FMT_GRAY8A &&\n\n avctx->pix_fmt != AV_PIX_FMT_PAL8) {\n\n avpriv_request_sample(avctx, \"Blending with pixel format %s\",\n\n av_get_pix_fmt_name(avctx->pix_fmt));\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n\n\n // Do the disposal operation specified by the last frame on the frame\n\n if (s->last_dispose_op != APNG_DISPOSE_OP_PREVIOUS) {\n\n ff_thread_await_progress(&s->last_picture, INT_MAX, 0);\n\n memcpy(buffer, s->last_picture.f->data[0], s->image_linesize * s->height);\n\n\n\n if (s->last_dispose_op == APNG_DISPOSE_OP_BACKGROUND)\n\n for (y = s->last_y_offset; y < s->last_y_offset + s->last_h; ++y)\n\n memset(buffer + s->image_linesize * y + s->bpp * s->last_x_offset, 0, s->bpp * s->last_w);\n\n\n\n memcpy(s->previous_picture.f->data[0], buffer, s->image_linesize * s->height);\n\n ff_thread_report_progress(&s->previous_picture, INT_MAX, 0);\n\n } else {\n\n ff_thread_await_progress(&s->previous_picture, INT_MAX, 0);\n\n memcpy(buffer, s->previous_picture.f->data[0], s->image_linesize * s->height);\n\n }\n\n\n\n // Perform blending\n\n if (s->blend_op == APNG_BLEND_OP_SOURCE) {\n\n for (y = s->y_offset; y < s->y_offset + s->cur_h; ++y) {\n\n size_t row_start = s->image_linesize * y + s->bpp * s->x_offset;\n\n memcpy(buffer + row_start, p->data[0] + row_start, s->bpp * s->cur_w);\n\n }\n\n } else { // APNG_BLEND_OP_OVER\n\n for (y = s->y_offset; y < s->y_offset + s->cur_h; ++y) {\n\n uint8_t *foreground = p->data[0] + s->image_linesize * y + s->bpp * s->x_offset;\n\n uint8_t *background = buffer + s->image_linesize * y + s->bpp * s->x_offset;\n\n for (x = s->x_offset; x < s->x_offset + s->cur_w; ++x, foreground += s->bpp, background += s->bpp) {\n\n size_t b;\n\n uint8_t foreground_alpha, background_alpha, output_alpha;\n\n uint8_t output[4];\n\n\n\n // Since we might be blending alpha onto alpha, we use the following equations:\n\n // output_alpha = foreground_alpha + (1 - foreground_alpha) * background_alpha\n\n // output = (foreground_alpha * foreground + (1 - foreground_alpha) * background_alpha * background) / output_alpha\n\n\n\n switch (avctx->pix_fmt) {\n\n case AV_PIX_FMT_RGBA:\n\n foreground_alpha = foreground[3];\n\n background_alpha = background[3];\n\n break;\n\n\n\n case AV_PIX_FMT_GRAY8A:\n\n foreground_alpha = foreground[1];\n\n background_alpha = background[1];\n\n break;\n\n\n\n case AV_PIX_FMT_PAL8:\n\n foreground_alpha = s->palette[foreground[0]] >> 24;\n\n background_alpha = s->palette[background[0]] >> 24;\n\n break;\n\n }\n\n\n\n if (foreground_alpha == 0)\n\n continue;\n\n\n\n if (foreground_alpha == 255) {\n\n memcpy(background, foreground, s->bpp);\n\n continue;\n\n }\n\n\n\n if (avctx->pix_fmt == AV_PIX_FMT_PAL8) {\n\n // TODO: Alpha blending with PAL8 will likely need the entire image converted over to RGBA first\n\n avpriv_request_sample(avctx, \"Alpha blending palette samples\");\n\n background[0] = foreground[0];\n\n continue;\n\n }\n\n\n\n output_alpha = foreground_alpha + FAST_DIV255((255 - foreground_alpha) * background_alpha);\n\n\n\n for (b = 0; b < s->bpp - 1; ++b) {\n\n if (output_alpha == 0) {\n\n output[b] = 0;\n\n } else if (background_alpha == 255) {\n\n output[b] = FAST_DIV255(foreground_alpha * foreground[b] + (255 - foreground_alpha) * background[b]);\n\n } else {\n\n output[b] = (255 * foreground_alpha * foreground[b] + (255 - foreground_alpha) * background_alpha * background[b]) / (255 * output_alpha);\n\n }\n\n }\n\n output[b] = output_alpha;\n\n memcpy(background, output, s->bpp);\n\n }\n\n }\n\n }\n\n\n\n // Copy blended buffer into the frame and free\n\n memcpy(p->data[0], buffer, s->image_linesize * s->height);\n\n av_free(buffer);\n\n\n\n return 0;\n\n}\n", + "output": "1", + "index": 7772 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void fill_caches(H264Context *h, int mb_type, int for_deblock){\n\n MpegEncContext * const s = &h->s;\n\n const int mb_xy= h->mb_xy;\n\n int topleft_xy, top_xy, topright_xy, left_xy[2];\n\n int topleft_type, top_type, topright_type, left_type[2];\n\n int * left_block;\n\n int topleft_partition= -1;\n\n int i;\n\n\n\n top_xy = mb_xy - (s->mb_stride << FIELD_PICTURE);\n\n\n\n //FIXME deblocking could skip the intra and nnz parts.\n\n if(for_deblock && (h->slice_num == 1 || h->slice_table[mb_xy] == h->slice_table[top_xy]) && !FRAME_MBAFF)\n\n return;\n\n\n\n /* Wow, what a mess, why didn't they simplify the interlacing & intra\n\n * stuff, I can't imagine that these complex rules are worth it. */\n\n\n\n topleft_xy = top_xy - 1;\n\n topright_xy= top_xy + 1;\n\n left_xy[1] = left_xy[0] = mb_xy-1;\n\n left_block = left_block_options[0];\n\n if(FRAME_MBAFF){\n\n const int pair_xy = s->mb_x + (s->mb_y & ~1)*s->mb_stride;\n\n const int top_pair_xy = pair_xy - s->mb_stride;\n\n const int topleft_pair_xy = top_pair_xy - 1;\n\n const int topright_pair_xy = top_pair_xy + 1;\n\n const int topleft_mb_frame_flag = !IS_INTERLACED(s->current_picture.mb_type[topleft_pair_xy]);\n\n const int top_mb_frame_flag = !IS_INTERLACED(s->current_picture.mb_type[top_pair_xy]);\n\n const int topright_mb_frame_flag = !IS_INTERLACED(s->current_picture.mb_type[topright_pair_xy]);\n\n const int left_mb_frame_flag = !IS_INTERLACED(s->current_picture.mb_type[pair_xy-1]);\n\n const int curr_mb_frame_flag = !IS_INTERLACED(mb_type);\n\n const int bottom = (s->mb_y & 1);\n\n tprintf(s->avctx, \"fill_caches: curr_mb_frame_flag:%d, left_mb_frame_flag:%d, topleft_mb_frame_flag:%d, top_mb_frame_flag:%d, topright_mb_frame_flag:%d\\n\", curr_mb_frame_flag, left_mb_frame_flag, topleft_mb_frame_flag, top_mb_frame_flag, topright_mb_frame_flag);\n\n if (bottom\n\n ? !curr_mb_frame_flag // bottom macroblock\n\n : (!curr_mb_frame_flag && !top_mb_frame_flag) // top macroblock\n\n ) {\n\n top_xy -= s->mb_stride;\n\n }\n\n if (bottom\n\n ? !curr_mb_frame_flag // bottom macroblock\n\n : (!curr_mb_frame_flag && !topleft_mb_frame_flag) // top macroblock\n\n ) {\n\n topleft_xy -= s->mb_stride;\n\n } else if(bottom && curr_mb_frame_flag && !left_mb_frame_flag) {\n\n topleft_xy += s->mb_stride;\n\n // take top left mv from the middle of the mb, as opposed to all other modes which use the bottom right partition\n\n topleft_partition = 0;\n\n }\n\n if (bottom\n\n ? !curr_mb_frame_flag // bottom macroblock\n\n : (!curr_mb_frame_flag && !topright_mb_frame_flag) // top macroblock\n\n ) {\n\n topright_xy -= s->mb_stride;\n\n }\n\n if (left_mb_frame_flag != curr_mb_frame_flag) {\n\n left_xy[1] = left_xy[0] = pair_xy - 1;\n\n if (curr_mb_frame_flag) {\n\n if (bottom) {\n\n left_block = left_block_options[1];\n\n } else {\n\n left_block= left_block_options[2];\n\n }\n\n } else {\n\n left_xy[1] += s->mb_stride;\n\n left_block = left_block_options[3];\n\n }\n\n }\n\n }\n\n\n\n h->top_mb_xy = top_xy;\n\n h->left_mb_xy[0] = left_xy[0];\n\n h->left_mb_xy[1] = left_xy[1];\n\n if(for_deblock){\n\n topleft_type = 0;\n\n topright_type = 0;\n\n top_type = h->slice_table[top_xy ] < 255 ? s->current_picture.mb_type[top_xy] : 0;\n\n left_type[0] = h->slice_table[left_xy[0] ] < 255 ? s->current_picture.mb_type[left_xy[0]] : 0;\n\n left_type[1] = h->slice_table[left_xy[1] ] < 255 ? s->current_picture.mb_type[left_xy[1]] : 0;\n\n\n\n if(FRAME_MBAFF && !IS_INTRA(mb_type)){\n\n int list;\n\n for(list=0; listlist_count; list++){\n\n if(USES_LIST(mb_type,list)){\n\n int8_t *ref = &s->current_picture.ref_index[list][h->mb2b8_xy[mb_xy]];\n\n *(uint32_t*)&h->ref_cache[list][scan8[ 0]] =\n\n *(uint32_t*)&h->ref_cache[list][scan8[ 2]] = pack16to32(ref[0],ref[1])*0x0101;\n\n ref += h->b8_stride;\n\n *(uint32_t*)&h->ref_cache[list][scan8[ 8]] =\n\n *(uint32_t*)&h->ref_cache[list][scan8[10]] = pack16to32(ref[0],ref[1])*0x0101;\n\n }else{\n\n fill_rectangle(&h-> mv_cache[list][scan8[ 0]], 4, 4, 8, 0, 4);\n\n fill_rectangle(&h->ref_cache[list][scan8[ 0]], 4, 4, 8, (uint8_t)LIST_NOT_USED, 1);\n\n }\n\n }\n\n }\n\n }else{\n\n topleft_type = h->slice_table[topleft_xy ] == h->slice_num ? s->current_picture.mb_type[topleft_xy] : 0;\n\n top_type = h->slice_table[top_xy ] == h->slice_num ? s->current_picture.mb_type[top_xy] : 0;\n\n topright_type= h->slice_table[topright_xy] == h->slice_num ? s->current_picture.mb_type[topright_xy]: 0;\n\n left_type[0] = h->slice_table[left_xy[0] ] == h->slice_num ? s->current_picture.mb_type[left_xy[0]] : 0;\n\n left_type[1] = h->slice_table[left_xy[1] ] == h->slice_num ? s->current_picture.mb_type[left_xy[1]] : 0;\n\n }\n\n\n\n if(IS_INTRA(mb_type)){\n\n h->topleft_samples_available=\n\n h->top_samples_available=\n\n h->left_samples_available= 0xFFFF;\n\n h->topright_samples_available= 0xEEEA;\n\n\n\n if(!IS_INTRA(top_type) && (top_type==0 || h->pps.constrained_intra_pred)){\n\n h->topleft_samples_available= 0xB3FF;\n\n h->top_samples_available= 0x33FF;\n\n h->topright_samples_available= 0x26EA;\n\n }\n\n for(i=0; i<2; i++){\n\n if(!IS_INTRA(left_type[i]) && (left_type[i]==0 || h->pps.constrained_intra_pred)){\n\n h->topleft_samples_available&= 0xDF5F;\n\n h->left_samples_available&= 0x5F5F;\n\n }\n\n }\n\n\n\n if(!IS_INTRA(topleft_type) && (topleft_type==0 || h->pps.constrained_intra_pred))\n\n h->topleft_samples_available&= 0x7FFF;\n\n\n\n if(!IS_INTRA(topright_type) && (topright_type==0 || h->pps.constrained_intra_pred))\n\n h->topright_samples_available&= 0xFBFF;\n\n\n\n if(IS_INTRA4x4(mb_type)){\n\n if(IS_INTRA4x4(top_type)){\n\n h->intra4x4_pred_mode_cache[4+8*0]= h->intra4x4_pred_mode[top_xy][4];\n\n h->intra4x4_pred_mode_cache[5+8*0]= h->intra4x4_pred_mode[top_xy][5];\n\n h->intra4x4_pred_mode_cache[6+8*0]= h->intra4x4_pred_mode[top_xy][6];\n\n h->intra4x4_pred_mode_cache[7+8*0]= h->intra4x4_pred_mode[top_xy][3];\n\n }else{\n\n int pred;\n\n if(!top_type || (IS_INTER(top_type) && h->pps.constrained_intra_pred))\n\n pred= -1;\n\n else{\n\n pred= 2;\n\n }\n\n h->intra4x4_pred_mode_cache[4+8*0]=\n\n h->intra4x4_pred_mode_cache[5+8*0]=\n\n h->intra4x4_pred_mode_cache[6+8*0]=\n\n h->intra4x4_pred_mode_cache[7+8*0]= pred;\n\n }\n\n for(i=0; i<2; i++){\n\n if(IS_INTRA4x4(left_type[i])){\n\n h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[0+2*i]];\n\n h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[1+2*i]];\n\n }else{\n\n int pred;\n\n if(!left_type[i] || (IS_INTER(left_type[i]) && h->pps.constrained_intra_pred))\n\n pred= -1;\n\n else{\n\n pred= 2;\n\n }\n\n h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]=\n\n h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= pred;\n\n }\n\n }\n\n }\n\n }\n\n\n\n\n\n/*\n\n0 . T T. T T T T\n\n1 L . .L . . . .\n\n2 L . .L . . . .\n\n3 . T TL . . . .\n\n4 L . .L . . . .\n\n5 L . .. . . . .\n\n*/\n\n//FIXME constraint_intra_pred & partitioning & nnz (let us hope this is just a typo in the spec)\n\n if(top_type){\n\n h->non_zero_count_cache[4+8*0]= h->non_zero_count[top_xy][4];\n\n h->non_zero_count_cache[5+8*0]= h->non_zero_count[top_xy][5];\n\n h->non_zero_count_cache[6+8*0]= h->non_zero_count[top_xy][6];\n\n h->non_zero_count_cache[7+8*0]= h->non_zero_count[top_xy][3];\n\n\n\n h->non_zero_count_cache[1+8*0]= h->non_zero_count[top_xy][9];\n\n h->non_zero_count_cache[2+8*0]= h->non_zero_count[top_xy][8];\n\n\n\n h->non_zero_count_cache[1+8*3]= h->non_zero_count[top_xy][12];\n\n h->non_zero_count_cache[2+8*3]= h->non_zero_count[top_xy][11];\n\n\n\n }else{\n\n h->non_zero_count_cache[4+8*0]=\n\n h->non_zero_count_cache[5+8*0]=\n\n h->non_zero_count_cache[6+8*0]=\n\n h->non_zero_count_cache[7+8*0]=\n\n\n\n h->non_zero_count_cache[1+8*0]=\n\n h->non_zero_count_cache[2+8*0]=\n\n\n\n h->non_zero_count_cache[1+8*3]=\n\n h->non_zero_count_cache[2+8*3]= h->pps.cabac && !IS_INTRA(mb_type) ? 0 : 64;\n\n\n\n }\n\n\n\n for (i=0; i<2; i++) {\n\n if(left_type[i]){\n\n h->non_zero_count_cache[3+8*1 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[0+2*i]];\n\n h->non_zero_count_cache[3+8*2 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[1+2*i]];\n\n h->non_zero_count_cache[0+8*1 + 8*i]= h->non_zero_count[left_xy[i]][left_block[4+2*i]];\n\n h->non_zero_count_cache[0+8*4 + 8*i]= h->non_zero_count[left_xy[i]][left_block[5+2*i]];\n\n }else{\n\n h->non_zero_count_cache[3+8*1 + 2*8*i]=\n\n h->non_zero_count_cache[3+8*2 + 2*8*i]=\n\n h->non_zero_count_cache[0+8*1 + 8*i]=\n\n h->non_zero_count_cache[0+8*4 + 8*i]= h->pps.cabac && !IS_INTRA(mb_type) ? 0 : 64;\n\n }\n\n }\n\n\n\n if( h->pps.cabac ) {\n\n // top_cbp\n\n if(top_type) {\n\n h->top_cbp = h->cbp_table[top_xy];\n\n } else if(IS_INTRA(mb_type)) {\n\n h->top_cbp = 0x1C0;\n\n } else {\n\n h->top_cbp = 0;\n\n }\n\n // left_cbp\n\n if (left_type[0]) {\n\n h->left_cbp = h->cbp_table[left_xy[0]] & 0x1f0;\n\n } else if(IS_INTRA(mb_type)) {\n\n h->left_cbp = 0x1C0;\n\n } else {\n\n h->left_cbp = 0;\n\n }\n\n if (left_type[0]) {\n\n h->left_cbp |= ((h->cbp_table[left_xy[0]]>>((left_block[0]&(~1))+1))&0x1) << 1;\n\n }\n\n if (left_type[1]) {\n\n h->left_cbp |= ((h->cbp_table[left_xy[1]]>>((left_block[2]&(~1))+1))&0x1) << 3;\n\n }\n\n }\n\n\n\n#if 1\n\n if(IS_INTER(mb_type) || IS_DIRECT(mb_type)){\n\n int list;\n\n for(list=0; listlist_count; list++){\n\n if(!USES_LIST(mb_type, list) && !IS_DIRECT(mb_type) && !h->deblocking_filter){\n\n /*if(!h->mv_cache_clean[list]){\n\n memset(h->mv_cache [list], 0, 8*5*2*sizeof(int16_t)); //FIXME clean only input? clean at all?\n\n memset(h->ref_cache[list], PART_NOT_AVAILABLE, 8*5*sizeof(int8_t));\n\n h->mv_cache_clean[list]= 1;\n\n }*/\n\n continue;\n\n }\n\n h->mv_cache_clean[list]= 0;\n\n\n\n if(USES_LIST(top_type, list)){\n\n const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;\n\n const int b8_xy= h->mb2b8_xy[top_xy] + h->b8_stride;\n\n *(uint32_t*)h->mv_cache[list][scan8[0] + 0 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 0];\n\n *(uint32_t*)h->mv_cache[list][scan8[0] + 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 1];\n\n *(uint32_t*)h->mv_cache[list][scan8[0] + 2 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 2];\n\n *(uint32_t*)h->mv_cache[list][scan8[0] + 3 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 3];\n\n h->ref_cache[list][scan8[0] + 0 - 1*8]=\n\n h->ref_cache[list][scan8[0] + 1 - 1*8]= s->current_picture.ref_index[list][b8_xy + 0];\n\n h->ref_cache[list][scan8[0] + 2 - 1*8]=\n\n h->ref_cache[list][scan8[0] + 3 - 1*8]= s->current_picture.ref_index[list][b8_xy + 1];\n\n }else{\n\n *(uint32_t*)h->mv_cache [list][scan8[0] + 0 - 1*8]=\n\n *(uint32_t*)h->mv_cache [list][scan8[0] + 1 - 1*8]=\n\n *(uint32_t*)h->mv_cache [list][scan8[0] + 2 - 1*8]=\n\n *(uint32_t*)h->mv_cache [list][scan8[0] + 3 - 1*8]= 0;\n\n *(uint32_t*)&h->ref_cache[list][scan8[0] + 0 - 1*8]= ((top_type ? LIST_NOT_USED : PART_NOT_AVAILABLE)&0xFF)*0x01010101;\n\n }\n\n\n\n for(i=0; i<2; i++){\n\n int cache_idx = scan8[0] - 1 + i*2*8;\n\n if(USES_LIST(left_type[i], list)){\n\n const int b_xy= h->mb2b_xy[left_xy[i]] + 3;\n\n const int b8_xy= h->mb2b8_xy[left_xy[i]] + 1;\n\n *(uint32_t*)h->mv_cache[list][cache_idx ]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[0+i*2]];\n\n *(uint32_t*)h->mv_cache[list][cache_idx+8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[1+i*2]];\n\n h->ref_cache[list][cache_idx ]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[0+i*2]>>1)];\n\n h->ref_cache[list][cache_idx+8]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[1+i*2]>>1)];\n\n }else{\n\n *(uint32_t*)h->mv_cache [list][cache_idx ]=\n\n *(uint32_t*)h->mv_cache [list][cache_idx+8]= 0;\n\n h->ref_cache[list][cache_idx ]=\n\n h->ref_cache[list][cache_idx+8]= left_type[i] ? LIST_NOT_USED : PART_NOT_AVAILABLE;\n\n }\n\n }\n\n\n\n if((for_deblock || (IS_DIRECT(mb_type) && !h->direct_spatial_mv_pred)) && !FRAME_MBAFF)\n\n continue;\n\n\n\n if(USES_LIST(topleft_type, list)){\n\n const int b_xy = h->mb2b_xy[topleft_xy] + 3 + h->b_stride + (topleft_partition & 2*h->b_stride);\n\n const int b8_xy= h->mb2b8_xy[topleft_xy] + 1 + (topleft_partition & h->b8_stride);\n\n *(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy];\n\n h->ref_cache[list][scan8[0] - 1 - 1*8]= s->current_picture.ref_index[list][b8_xy];\n\n }else{\n\n *(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= 0;\n\n h->ref_cache[list][scan8[0] - 1 - 1*8]= topleft_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;\n\n }\n\n\n\n if(USES_LIST(topright_type, list)){\n\n const int b_xy= h->mb2b_xy[topright_xy] + 3*h->b_stride;\n\n const int b8_xy= h->mb2b8_xy[topright_xy] + h->b8_stride;\n\n *(uint32_t*)h->mv_cache[list][scan8[0] + 4 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy];\n\n h->ref_cache[list][scan8[0] + 4 - 1*8]= s->current_picture.ref_index[list][b8_xy];\n\n }else{\n\n *(uint32_t*)h->mv_cache [list][scan8[0] + 4 - 1*8]= 0;\n\n h->ref_cache[list][scan8[0] + 4 - 1*8]= topright_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;\n\n }\n\n\n\n if((IS_SKIP(mb_type) || IS_DIRECT(mb_type)) && !FRAME_MBAFF)\n\n continue;\n\n\n\n h->ref_cache[list][scan8[5 ]+1] =\n\n h->ref_cache[list][scan8[7 ]+1] =\n\n h->ref_cache[list][scan8[13]+1] = //FIXME remove past 3 (init somewhere else)\n\n h->ref_cache[list][scan8[4 ]] =\n\n h->ref_cache[list][scan8[12]] = PART_NOT_AVAILABLE;\n\n *(uint32_t*)h->mv_cache [list][scan8[5 ]+1]=\n\n *(uint32_t*)h->mv_cache [list][scan8[7 ]+1]=\n\n *(uint32_t*)h->mv_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewhere else)\n\n *(uint32_t*)h->mv_cache [list][scan8[4 ]]=\n\n *(uint32_t*)h->mv_cache [list][scan8[12]]= 0;\n\n\n\n if( h->pps.cabac ) {\n\n /* XXX beurk, Load mvd */\n\n if(USES_LIST(top_type, list)){\n\n const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;\n\n *(uint32_t*)h->mvd_cache[list][scan8[0] + 0 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 0];\n\n *(uint32_t*)h->mvd_cache[list][scan8[0] + 1 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 1];\n\n *(uint32_t*)h->mvd_cache[list][scan8[0] + 2 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 2];\n\n *(uint32_t*)h->mvd_cache[list][scan8[0] + 3 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 3];\n\n }else{\n\n *(uint32_t*)h->mvd_cache [list][scan8[0] + 0 - 1*8]=\n\n *(uint32_t*)h->mvd_cache [list][scan8[0] + 1 - 1*8]=\n\n *(uint32_t*)h->mvd_cache [list][scan8[0] + 2 - 1*8]=\n\n *(uint32_t*)h->mvd_cache [list][scan8[0] + 3 - 1*8]= 0;\n\n }\n\n if(USES_LIST(left_type[0], list)){\n\n const int b_xy= h->mb2b_xy[left_xy[0]] + 3;\n\n *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 0*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[0]];\n\n *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[1]];\n\n }else{\n\n *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 0*8]=\n\n *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 1*8]= 0;\n\n }\n\n if(USES_LIST(left_type[1], list)){\n\n const int b_xy= h->mb2b_xy[left_xy[1]] + 3;\n\n *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 2*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[2]];\n\n *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 3*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[3]];\n\n }else{\n\n *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 2*8]=\n\n *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 3*8]= 0;\n\n }\n\n *(uint32_t*)h->mvd_cache [list][scan8[5 ]+1]=\n\n *(uint32_t*)h->mvd_cache [list][scan8[7 ]+1]=\n\n *(uint32_t*)h->mvd_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewhere else)\n\n *(uint32_t*)h->mvd_cache [list][scan8[4 ]]=\n\n *(uint32_t*)h->mvd_cache [list][scan8[12]]= 0;\n\n\n\n if(h->slice_type_nos == FF_B_TYPE){\n\n fill_rectangle(&h->direct_cache[scan8[0]], 4, 4, 8, 0, 1);\n\n\n\n if(IS_DIRECT(top_type)){\n\n *(uint32_t*)&h->direct_cache[scan8[0] - 1*8]= 0x01010101;\n\n }else if(IS_8X8(top_type)){\n\n int b8_xy = h->mb2b8_xy[top_xy] + h->b8_stride;\n\n h->direct_cache[scan8[0] + 0 - 1*8]= h->direct_table[b8_xy];\n\n h->direct_cache[scan8[0] + 2 - 1*8]= h->direct_table[b8_xy + 1];\n\n }else{\n\n *(uint32_t*)&h->direct_cache[scan8[0] - 1*8]= 0;\n\n }\n\n\n\n if(IS_DIRECT(left_type[0]))\n\n h->direct_cache[scan8[0] - 1 + 0*8]= 1;\n\n else if(IS_8X8(left_type[0]))\n\n h->direct_cache[scan8[0] - 1 + 0*8]= h->direct_table[h->mb2b8_xy[left_xy[0]] + 1 + h->b8_stride*(left_block[0]>>1)];\n\n else\n\n h->direct_cache[scan8[0] - 1 + 0*8]= 0;\n\n\n\n if(IS_DIRECT(left_type[1]))\n\n h->direct_cache[scan8[0] - 1 + 2*8]= 1;\n\n else if(IS_8X8(left_type[1]))\n\n h->direct_cache[scan8[0] - 1 + 2*8]= h->direct_table[h->mb2b8_xy[left_xy[1]] + 1 + h->b8_stride*(left_block[2]>>1)];\n\n else\n\n h->direct_cache[scan8[0] - 1 + 2*8]= 0;\n\n }\n\n }\n\n\n\n if(FRAME_MBAFF){\n\n#define MAP_MVS\\\n\n MAP_F2F(scan8[0] - 1 - 1*8, topleft_type)\\\n\n MAP_F2F(scan8[0] + 0 - 1*8, top_type)\\\n\n MAP_F2F(scan8[0] + 1 - 1*8, top_type)\\\n\n MAP_F2F(scan8[0] + 2 - 1*8, top_type)\\\n\n MAP_F2F(scan8[0] + 3 - 1*8, top_type)\\\n\n MAP_F2F(scan8[0] + 4 - 1*8, topright_type)\\\n\n MAP_F2F(scan8[0] - 1 + 0*8, left_type[0])\\\n\n MAP_F2F(scan8[0] - 1 + 1*8, left_type[0])\\\n\n MAP_F2F(scan8[0] - 1 + 2*8, left_type[1])\\\n\n MAP_F2F(scan8[0] - 1 + 3*8, left_type[1])\n\n if(MB_FIELD){\n\n#define MAP_F2F(idx, mb_type)\\\n\n if(!IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\\\n\n h->ref_cache[list][idx] <<= 1;\\\n\n h->mv_cache[list][idx][1] /= 2;\\\n\n h->mvd_cache[list][idx][1] /= 2;\\\n\n }\n\n MAP_MVS\n\n#undef MAP_F2F\n\n }else{\n\n#define MAP_F2F(idx, mb_type)\\\n\n if(IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\\\n\n h->ref_cache[list][idx] >>= 1;\\\n\n h->mv_cache[list][idx][1] <<= 1;\\\n\n h->mvd_cache[list][idx][1] <<= 1;\\\n\n }\n\n MAP_MVS\n\n#undef MAP_F2F\n\n }\n\n }\n\n }\n\n }\n\n#endif\n\n\n\n h->neighbor_transform_size= !!IS_8x8DCT(top_type) + !!IS_8x8DCT(left_type[0]);\n\n}\n", + "output": "1", + "index": 4664 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int ff_wma_init(AVCodecContext * avctx, int flags2)\n{\n WMACodecContext *s = avctx->priv_data;\n int i;\n float *window;\n float bps1, high_freq;\n volatile float bps;\n int sample_rate1;\n int coef_vlc_table;\n s->sample_rate = avctx->sample_rate;\n s->nb_channels = avctx->channels;\n s->bit_rate = avctx->bit_rate;\n s->block_align = avctx->block_align;\n dsputil_init(&s->dsp, avctx);\n if (avctx->codec->id == CODEC_ID_WMAV1) {\n s->version = 1;\n } else {\n s->version = 2;\n }\n /* compute MDCT block size */\n if (s->sample_rate <= 16000) {\n s->frame_len_bits = 9;\n } else if (s->sample_rate <= 22050 ||\n (s->sample_rate <= 32000 && s->version == 1)) {\n s->frame_len_bits = 10;\n } else {\n s->frame_len_bits = 11;\n }\n s->frame_len = 1 << s->frame_len_bits;\n if (s->use_variable_block_len) {\n int nb_max, nb;\n nb = ((flags2 >> 3) & 3) + 1;\n if ((s->bit_rate / s->nb_channels) >= 32000)\n nb += 2;\n nb_max = s->frame_len_bits - BLOCK_MIN_BITS;\n if (nb > nb_max)\n nb = nb_max;\n s->nb_block_sizes = nb + 1;\n } else {\n s->nb_block_sizes = 1;\n }\n /* init rate dependent parameters */\n s->use_noise_coding = 1;\n high_freq = s->sample_rate * 0.5;\n /* if version 2, then the rates are normalized */\n sample_rate1 = s->sample_rate;\n if (s->version == 2) {\n if (sample_rate1 >= 44100)\n sample_rate1 = 44100;\n else if (sample_rate1 >= 22050)\n sample_rate1 = 22050;\n else if (sample_rate1 >= 16000)\n sample_rate1 = 16000;\n else if (sample_rate1 >= 11025)\n sample_rate1 = 11025;\n else if (sample_rate1 >= 8000)\n sample_rate1 = 8000;\n }\n bps = (float)s->bit_rate / (float)(s->nb_channels * s->sample_rate);\n s->byte_offset_bits = av_log2((int)(bps * s->frame_len / 8.0 + 0.5)) + 2;\n /* compute high frequency value and choose if noise coding should\n be activated */\n bps1 = bps;\n if (s->nb_channels == 2)\n bps1 = bps * 1.6;\n if (sample_rate1 == 44100) {\n if (bps1 >= 0.61)\n s->use_noise_coding = 0;\n else\n high_freq = high_freq * 0.4;\n } else if (sample_rate1 == 22050) {\n if (bps1 >= 1.16)\n s->use_noise_coding = 0;\n else if (bps1 >= 0.72)\n high_freq = high_freq * 0.7;\n else\n high_freq = high_freq * 0.6;\n } else if (sample_rate1 == 16000) {\n if (bps > 0.5)\n high_freq = high_freq * 0.5;\n else\n high_freq = high_freq * 0.3;\n } else if (sample_rate1 == 11025) {\n high_freq = high_freq * 0.7;\n } else if (sample_rate1 == 8000) {\n if (bps <= 0.625) {\n high_freq = high_freq * 0.5;\n } else if (bps > 0.75) {\n s->use_noise_coding = 0;\n } else {\n high_freq = high_freq * 0.65;\n }\n } else {\n if (bps >= 0.8) {\n high_freq = high_freq * 0.75;\n } else if (bps >= 0.6) {\n high_freq = high_freq * 0.6;\n } else {\n high_freq = high_freq * 0.5;\n }\n }\n dprintf(s->avctx, \"flags2=0x%x\\n\", flags2);\n dprintf(s->avctx, \"version=%d channels=%d sample_rate=%d bitrate=%d block_align=%d\\n\",\n s->version, s->nb_channels, s->sample_rate, s->bit_rate,\n s->block_align);\n dprintf(s->avctx, \"bps=%f bps1=%f high_freq=%f bitoffset=%d\\n\",\n bps, bps1, high_freq, s->byte_offset_bits);\n dprintf(s->avctx, \"use_noise_coding=%d use_exp_vlc=%d nb_block_sizes=%d\\n\",\n s->use_noise_coding, s->use_exp_vlc, s->nb_block_sizes);\n /* compute the scale factor band sizes for each MDCT block size */\n {\n int a, b, pos, lpos, k, block_len, i, j, n;\n const uint8_t *table;\n if (s->version == 1) {\n s->coefs_start = 3;\n } else {\n s->coefs_start = 0;\n }\n for(k = 0; k < s->nb_block_sizes; k++) {\n block_len = s->frame_len >> k;\n if (s->version == 1) {\n lpos = 0;\n for(i=0;i<25;i++) {\n a = wma_critical_freqs[i];\n b = s->sample_rate;\n pos = ((block_len * 2 * a) + (b >> 1)) / b;\n if (pos > block_len)\n pos = block_len;\n s->exponent_bands[0][i] = pos - lpos;\n if (pos >= block_len) {\n i++;\n break;\n }\n lpos = pos;\n }\n s->exponent_sizes[0] = i;\n } else {\n /* hardcoded tables */\n table = NULL;\n a = s->frame_len_bits - BLOCK_MIN_BITS - k;\n if (a < 3) {\n if (s->sample_rate >= 44100)\n table = exponent_band_44100[a];\n else if (s->sample_rate >= 32000)\n table = exponent_band_32000[a];\n else if (s->sample_rate >= 22050)\n table = exponent_band_22050[a];\n }\n if (table) {\n n = *table++;\n for(i=0;iexponent_bands[k][i] = table[i];\n s->exponent_sizes[k] = n;\n } else {\n j = 0;\n lpos = 0;\n for(i=0;i<25;i++) {\n a = wma_critical_freqs[i];\n b = s->sample_rate;\n pos = ((block_len * 2 * a) + (b << 1)) / (4 * b);\n pos <<= 2;\n if (pos > block_len)\n pos = block_len;\n if (pos > lpos)\n s->exponent_bands[k][j++] = pos - lpos;\n if (pos >= block_len)\n break;\n lpos = pos;\n }\n s->exponent_sizes[k] = j;\n }\n }\n /* max number of coefs */\n s->coefs_end[k] = (s->frame_len - ((s->frame_len * 9) / 100)) >> k;\n /* high freq computation */\n s->high_band_start[k] = (int)((block_len * 2 * high_freq) /\n s->sample_rate + 0.5);\n n = s->exponent_sizes[k];\n j = 0;\n pos = 0;\n for(i=0;iexponent_bands[k][i];\n end = pos;\n if (start < s->high_band_start[k])\n start = s->high_band_start[k];\n if (end > s->coefs_end[k])\n end = s->coefs_end[k];\n if (end > start)\n s->exponent_high_bands[k][j++] = end - start;\n }\n s->exponent_high_sizes[k] = j;\n#if 0\n tprintf(s->avctx, \"%5d: coefs_end=%d high_band_start=%d nb_high_bands=%d: \",\n s->frame_len >> k,\n s->coefs_end[k],\n s->high_band_start[k],\n s->exponent_high_sizes[k]);\n for(j=0;jexponent_high_sizes[k];j++)\n tprintf(s->avctx, \" %d\", s->exponent_high_bands[k][j]);\n tprintf(s->avctx, \"\\n\");\n#endif\n }\n }\n#ifdef TRACE\n {\n int i, j;\n for(i = 0; i < s->nb_block_sizes; i++) {\n tprintf(s->avctx, \"%5d: n=%2d:\",\n s->frame_len >> i,\n s->exponent_sizes[i]);\n for(j=0;jexponent_sizes[i];j++)\n tprintf(s->avctx, \" %d\", s->exponent_bands[i][j]);\n tprintf(s->avctx, \"\\n\");\n }\n }\n#endif\n /* init MDCT windows : simple sinus window */\n for(i = 0; i < s->nb_block_sizes; i++) {\n int n, j;\n float alpha;\n n = 1 << (s->frame_len_bits - i);\n window = av_malloc(sizeof(float) * n);\n alpha = M_PI / (2.0 * n);\n for(j=0;jwindows[i] = window;\n }\n s->reset_block_lengths = 1;\n if (s->use_noise_coding) {\n /* init the noise generator */\n if (s->use_exp_vlc)\n s->noise_mult = 0.02;\n else\n s->noise_mult = 0.04;\n#ifdef TRACE\n for(i=0;inoise_table[i] = 1.0 * s->noise_mult;\n#else\n {\n unsigned int seed;\n float norm;\n seed = 1;\n norm = (1.0 / (float)(1LL << 31)) * sqrt(3) * s->noise_mult;\n for(i=0;inoise_table[i] = (float)((int)seed) * norm;\n }\n }\n#endif\n }\n /* choose the VLC tables for the coefficients */\n coef_vlc_table = 2;\n if (s->sample_rate >= 32000) {\n if (bps1 < 0.72)\n coef_vlc_table = 0;\n else if (bps1 < 1.16)\n coef_vlc_table = 1;\n }\n s->coef_vlcs[0]= &coef_vlcs[coef_vlc_table * 2 ];\n s->coef_vlcs[1]= &coef_vlcs[coef_vlc_table * 2 + 1];\n init_coef_vlc(&s->coef_vlc[0], &s->run_table[0], &s->level_table[0], &s->int_table[0],\n s->coef_vlcs[0]);\n init_coef_vlc(&s->coef_vlc[1], &s->run_table[1], &s->level_table[1], &s->int_table[1],\n s->coef_vlcs[1]);\n return 0;\n}", + "output": "1", + "index": 18525 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int xmv_read_header(AVFormatContext *s)\n\n{\n\n XMVDemuxContext *xmv = s->priv_data;\n\n AVIOContext *pb = s->pb;\n\n AVStream *vst = NULL;\n\n\n\n uint32_t file_version;\n\n uint32_t this_packet_size;\n\n uint16_t audio_track;\n\n int ret;\n\n\n\n avio_skip(pb, 4); /* Next packet size */\n\n\n\n this_packet_size = avio_rl32(pb);\n\n\n\n avio_skip(pb, 4); /* Max packet size */\n\n avio_skip(pb, 4); /* \"xobX\" */\n\n\n\n file_version = avio_rl32(pb);\n\n if ((file_version != 4) && (file_version != 2))\n\n avpriv_request_sample(s, \"Uncommon version %d\", file_version);\n\n\n\n\n\n /* Video track */\n\n\n\n vst = avformat_new_stream(s, NULL);\n\n if (!vst)\n\n return AVERROR(ENOMEM);\n\n\n\n avpriv_set_pts_info(vst, 32, 1, 1000);\n\n\n\n vst->codec->codec_type = AVMEDIA_TYPE_VIDEO;\n\n vst->codec->codec_id = AV_CODEC_ID_WMV2;\n\n vst->codec->codec_tag = MKBETAG('W', 'M', 'V', '2');\n\n vst->codec->width = avio_rl32(pb);\n\n vst->codec->height = avio_rl32(pb);\n\n\n\n vst->duration = avio_rl32(pb);\n\n\n\n xmv->video.stream_index = vst->index;\n\n\n\n /* Audio tracks */\n\n\n\n xmv->audio_track_count = avio_rl16(pb);\n\n\n\n avio_skip(pb, 2); /* Unknown (padding?) */\n\n\n\n xmv->audio_tracks = av_malloc(xmv->audio_track_count * sizeof(XMVAudioTrack));\n\n if (!xmv->audio_tracks)\n\n return AVERROR(ENOMEM);\n\n\n\n xmv->audio = av_malloc(xmv->audio_track_count * sizeof(XMVAudioPacket));\n\n if (!xmv->audio)\n\n return AVERROR(ENOMEM);\n\n\n\n for (audio_track = 0; audio_track < xmv->audio_track_count; audio_track++) {\n\n XMVAudioTrack *track = &xmv->audio_tracks[audio_track];\n\n XMVAudioPacket *packet = &xmv->audio [audio_track];\n\n AVStream *ast = NULL;\n\n\n\n track->compression = avio_rl16(pb);\n\n track->channels = avio_rl16(pb);\n\n track->sample_rate = avio_rl32(pb);\n\n track->bits_per_sample = avio_rl16(pb);\n\n track->flags = avio_rl16(pb);\n\n\n\n track->bit_rate = track->bits_per_sample *\n\n track->sample_rate *\n\n track->channels;\n\n track->block_align = 36 * track->channels;\n\n track->block_samples = 64;\n\n track->codec_id = ff_wav_codec_get_id(track->compression,\n\n track->bits_per_sample);\n\n\n\n packet->track = track;\n\n packet->stream_index = -1;\n\n\n\n packet->frame_size = 0;\n\n packet->block_count = 0;\n\n\n\n /* TODO: ADPCM'd 5.1 sound is encoded in three separate streams.\n\n * Those need to be interleaved to a proper 5.1 stream. */\n\n if (track->flags & XMV_AUDIO_ADPCM51)\n\n av_log(s, AV_LOG_WARNING, \"Unsupported 5.1 ADPCM audio stream \"\n\n \"(0x%04X)\\n\", track->flags);\n\n\n\n if (!track->channels || !track->sample_rate) {\n\n av_log(s, AV_LOG_ERROR, \"Invalid parameters for audio track %d.\\n\",\n\n audio_track);\n\n ret = AVERROR_INVALIDDATA;\n\n goto fail;\n\n }\n\n\n\n ast = avformat_new_stream(s, NULL);\n\n if (!ast)\n\n return AVERROR(ENOMEM);\n\n\n\n ast->codec->codec_type = AVMEDIA_TYPE_AUDIO;\n\n ast->codec->codec_id = track->codec_id;\n\n ast->codec->codec_tag = track->compression;\n\n ast->codec->channels = track->channels;\n\n ast->codec->sample_rate = track->sample_rate;\n\n ast->codec->bits_per_coded_sample = track->bits_per_sample;\n\n ast->codec->bit_rate = track->bit_rate;\n\n ast->codec->block_align = 36 * track->channels;\n\n\n\n avpriv_set_pts_info(ast, 32, track->block_samples, track->sample_rate);\n\n\n\n packet->stream_index = ast->index;\n\n\n\n ast->duration = vst->duration;\n\n }\n\n\n\n\n\n /** Initialize the packet context */\n\n\n\n xmv->next_packet_offset = avio_tell(pb);\n\n xmv->next_packet_size = this_packet_size - xmv->next_packet_offset;\n\n xmv->stream_count = xmv->audio_track_count + 1;\n\n\n\n return 0;\n\n\n\nfail:\n\n xmv_read_close(s);\n\n return ret;\n\n}\n", + "output": "1", + "index": 20621 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static inline int svq3_mc_dir(SVQ3Context *s, int size, int mode,\n\n int dir, int avg)\n\n{\n\n int i, j, k, mx, my, dx, dy, x, y;\n\n const int part_width = ((size & 5) == 4) ? 4 : 16 >> (size & 1);\n\n const int part_height = 16 >> ((unsigned)(size + 1) / 3);\n\n const int extra_width = (mode == PREDICT_MODE) ? -16 * 6 : 0;\n\n const int h_edge_pos = 6 * (s->h_edge_pos - part_width) - extra_width;\n\n const int v_edge_pos = 6 * (s->v_edge_pos - part_height) - extra_width;\n\n\n\n for (i = 0; i < 16; i += part_height)\n\n for (j = 0; j < 16; j += part_width) {\n\n const int b_xy = (4 * s->mb_x + (j >> 2)) +\n\n (4 * s->mb_y + (i >> 2)) * s->b_stride;\n\n int dxy;\n\n x = 16 * s->mb_x + j;\n\n y = 16 * s->mb_y + i;\n\n k = (j >> 2 & 1) + (i >> 1 & 2) +\n\n (j >> 1 & 4) + (i & 8);\n\n\n\n if (mode != PREDICT_MODE) {\n\n svq3_pred_motion(s, k, part_width >> 2, dir, 1, &mx, &my);\n\n } else {\n\n mx = s->next_pic->motion_val[0][b_xy][0] << 1;\n\n my = s->next_pic->motion_val[0][b_xy][1] << 1;\n\n\n\n if (dir == 0) {\n\n mx = mx * s->frame_num_offset /\n\n s->prev_frame_num_offset + 1 >> 1;\n\n my = my * s->frame_num_offset /\n\n s->prev_frame_num_offset + 1 >> 1;\n\n } else {\n\n mx = mx * (s->frame_num_offset - s->prev_frame_num_offset) /\n\n s->prev_frame_num_offset + 1 >> 1;\n\n my = my * (s->frame_num_offset - s->prev_frame_num_offset) /\n\n s->prev_frame_num_offset + 1 >> 1;\n\n }\n\n }\n\n\n\n /* clip motion vector prediction to frame border */\n\n mx = av_clip(mx, extra_width - 6 * x, h_edge_pos - 6 * x);\n\n my = av_clip(my, extra_width - 6 * y, v_edge_pos - 6 * y);\n\n\n\n /* get (optional) motion vector differential */\n\n if (mode == PREDICT_MODE) {\n\n dx = dy = 0;\n\n } else {\n\n dy = get_interleaved_se_golomb(&s->gb_slice);\n\n dx = get_interleaved_se_golomb(&s->gb_slice);\n\n\n\n if (dx != (int16_t)dx || dy != (int16_t)dy) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"invalid MV vlc\\n\");\n\n return -1;\n\n }\n\n }\n\n\n\n /* compute motion vector */\n\n if (mode == THIRDPEL_MODE) {\n\n int fx, fy;\n\n mx = (mx + 1 >> 1) + dx;\n\n my = (my + 1 >> 1) + dy;\n\n fx = (unsigned)(mx + 0x30000) / 3 - 0x10000;\n\n fy = (unsigned)(my + 0x30000) / 3 - 0x10000;\n\n dxy = (mx - 3 * fx) + 4 * (my - 3 * fy);\n\n\n\n svq3_mc_dir_part(s, x, y, part_width, part_height,\n\n fx, fy, dxy, 1, dir, avg);\n\n mx += mx;\n\n my += my;\n\n } else if (mode == HALFPEL_MODE || mode == PREDICT_MODE) {\n\n mx = (unsigned)(mx + 1 + 0x30000) / 3 + dx - 0x10000;\n\n my = (unsigned)(my + 1 + 0x30000) / 3 + dy - 0x10000;\n\n dxy = (mx & 1) + 2 * (my & 1);\n\n\n\n svq3_mc_dir_part(s, x, y, part_width, part_height,\n\n mx >> 1, my >> 1, dxy, 0, dir, avg);\n\n mx *= 3;\n\n my *= 3;\n\n } else {\n\n mx = (unsigned)(mx + 3 + 0x60000) / 6 + dx - 0x10000;\n\n my = (unsigned)(my + 3 + 0x60000) / 6 + dy - 0x10000;\n\n\n\n svq3_mc_dir_part(s, x, y, part_width, part_height,\n\n mx, my, 0, 0, dir, avg);\n\n mx *= 6;\n\n my *= 6;\n\n }\n\n\n\n /* update mv_cache */\n\n if (mode != PREDICT_MODE) {\n\n int32_t mv = pack16to32(mx, my);\n\n\n\n if (part_height == 8 && i < 8) {\n\n AV_WN32A(s->mv_cache[dir][scan8[k] + 1 * 8], mv);\n\n\n\n if (part_width == 8 && j < 8)\n\n AV_WN32A(s->mv_cache[dir][scan8[k] + 1 + 1 * 8], mv);\n\n }\n\n if (part_width == 8 && j < 8)\n\n AV_WN32A(s->mv_cache[dir][scan8[k] + 1], mv);\n\n if (part_width == 4 || part_height == 4)\n\n AV_WN32A(s->mv_cache[dir][scan8[k]], mv);\n\n }\n\n\n\n /* write back motion vectors */\n\n fill_rectangle(s->cur_pic->motion_val[dir][b_xy],\n\n part_width >> 2, part_height >> 2, s->b_stride,\n\n pack16to32(mx, my), 4);\n\n }\n\n\n\n return 0;\n\n}\n", + "output": "1", + "index": 2868 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int adpcm_encode_frame(AVCodecContext *avctx,\n\n unsigned char *frame, int buf_size, void *data)\n\n{\n\n int n, i, st;\n\n short *samples;\n\n unsigned char *dst;\n\n ADPCMContext *c = avctx->priv_data;\n\n\n\n dst = frame;\n\n samples = (short *)data;\n\n st= avctx->channels == 2;\n\n/* n = (BLKSIZE - 4 * avctx->channels) / (2 * 8 * avctx->channels); */\n\n\n\n switch(avctx->codec->id) {\n\n case CODEC_ID_ADPCM_IMA_QT: /* XXX: can't test until we get .mov writer */\n\n break;\n\n case CODEC_ID_ADPCM_IMA_WAV:\n\n n = avctx->frame_size / 8;\n\n c->status[0].prev_sample = (signed short)samples[0]; /* XXX */\n\n/* c->status[0].step_index = 0; *//* XXX: not sure how to init the state machine */\n\n bytestream_put_le16(&dst, c->status[0].prev_sample);\n\n *dst++ = (unsigned char)c->status[0].step_index;\n\n *dst++ = 0; /* unknown */\n\n samples++;\n\n if (avctx->channels == 2) {\n\n c->status[1].prev_sample = (signed short)samples[1];\n\n/* c->status[1].step_index = 0; */\n\n bytestream_put_le16(&dst, c->status[1].prev_sample);\n\n *dst++ = (unsigned char)c->status[1].step_index;\n\n *dst++ = 0;\n\n samples++;\n\n }\n\n\n\n /* stereo: 4 bytes (8 samples) for left, 4 bytes for right, 4 bytes left, ... */\n\n if(avctx->trellis > 0) {\n\n uint8_t buf[2][n*8];\n\n adpcm_compress_trellis(avctx, samples, buf[0], &c->status[0], n*8);\n\n if(avctx->channels == 2)\n\n adpcm_compress_trellis(avctx, samples+1, buf[1], &c->status[1], n*8);\n\n for(i=0; ichannels == 2) {\n\n *dst++ = buf[1][8*i+0] | (buf[1][8*i+1] << 4);\n\n *dst++ = buf[1][8*i+2] | (buf[1][8*i+3] << 4);\n\n *dst++ = buf[1][8*i+4] | (buf[1][8*i+5] << 4);\n\n *dst++ = buf[1][8*i+6] | (buf[1][8*i+7] << 4);\n\n }\n\n }\n\n } else\n\n for (; n>0; n--) {\n\n *dst = adpcm_ima_compress_sample(&c->status[0], samples[0]) & 0x0F;\n\n *dst |= (adpcm_ima_compress_sample(&c->status[0], samples[avctx->channels]) << 4) & 0xF0;\n\n dst++;\n\n *dst = adpcm_ima_compress_sample(&c->status[0], samples[avctx->channels * 2]) & 0x0F;\n\n *dst |= (adpcm_ima_compress_sample(&c->status[0], samples[avctx->channels * 3]) << 4) & 0xF0;\n\n dst++;\n\n *dst = adpcm_ima_compress_sample(&c->status[0], samples[avctx->channels * 4]) & 0x0F;\n\n *dst |= (adpcm_ima_compress_sample(&c->status[0], samples[avctx->channels * 5]) << 4) & 0xF0;\n\n dst++;\n\n *dst = adpcm_ima_compress_sample(&c->status[0], samples[avctx->channels * 6]) & 0x0F;\n\n *dst |= (adpcm_ima_compress_sample(&c->status[0], samples[avctx->channels * 7]) << 4) & 0xF0;\n\n dst++;\n\n /* right channel */\n\n if (avctx->channels == 2) {\n\n *dst = adpcm_ima_compress_sample(&c->status[1], samples[1]);\n\n *dst |= adpcm_ima_compress_sample(&c->status[1], samples[3]) << 4;\n\n dst++;\n\n *dst = adpcm_ima_compress_sample(&c->status[1], samples[5]);\n\n *dst |= adpcm_ima_compress_sample(&c->status[1], samples[7]) << 4;\n\n dst++;\n\n *dst = adpcm_ima_compress_sample(&c->status[1], samples[9]);\n\n *dst |= adpcm_ima_compress_sample(&c->status[1], samples[11]) << 4;\n\n dst++;\n\n *dst = adpcm_ima_compress_sample(&c->status[1], samples[13]);\n\n *dst |= adpcm_ima_compress_sample(&c->status[1], samples[15]) << 4;\n\n dst++;\n\n }\n\n samples += 8 * avctx->channels;\n\n }\n\n break;\n\n case CODEC_ID_ADPCM_SWF:\n\n {\n\n int i;\n\n PutBitContext pb;\n\n init_put_bits(&pb, dst, buf_size*8);\n\n\n\n n = avctx->frame_size-1;\n\n\n\n //Store AdpcmCodeSize\n\n put_bits(&pb, 2, 2); //Set 4bits flash adpcm format\n\n\n\n //Init the encoder state\n\n for(i=0; ichannels; i++){\n\n c->status[i].step_index = av_clip(c->status[i].step_index, 0, 63); // clip step so it fits 6 bits\n\n put_bits(&pb, 16, samples[i] & 0xFFFF);\n\n put_bits(&pb, 6, c->status[i].step_index);\n\n c->status[i].prev_sample = (signed short)samples[i];\n\n }\n\n\n\n if(avctx->trellis > 0) {\n\n uint8_t buf[2][n];\n\n adpcm_compress_trellis(avctx, samples+2, buf[0], &c->status[0], n);\n\n if (avctx->channels == 2)\n\n adpcm_compress_trellis(avctx, samples+3, buf[1], &c->status[1], n);\n\n for(i=0; ichannels == 2)\n\n put_bits(&pb, 4, buf[1][i]);\n\n }\n\n } else {\n\n for (i=1; iframe_size; i++) {\n\n put_bits(&pb, 4, adpcm_ima_compress_sample(&c->status[0], samples[avctx->channels*i]) & 0xF);\n\n if (avctx->channels == 2)\n\n put_bits(&pb, 4, adpcm_ima_compress_sample(&c->status[1], samples[2*i+1]) & 0xF);\n\n }\n\n }\n\n flush_put_bits(&pb);\n\n dst += put_bits_count(&pb)>>3;\n\n break;\n\n }\n\n case CODEC_ID_ADPCM_MS:\n\n for(i=0; ichannels; i++){\n\n int predictor=0;\n\n\n\n *dst++ = predictor;\n\n c->status[i].coeff1 = AdaptCoeff1[predictor];\n\n c->status[i].coeff2 = AdaptCoeff2[predictor];\n\n }\n\n for(i=0; ichannels; i++){\n\n if (c->status[i].idelta < 16)\n\n c->status[i].idelta = 16;\n\n\n\n bytestream_put_le16(&dst, c->status[i].idelta);\n\n }\n\n for(i=0; ichannels; i++){\n\n c->status[i].sample1= *samples++;\n\n\n\n bytestream_put_le16(&dst, c->status[i].sample1);\n\n }\n\n for(i=0; ichannels; i++){\n\n c->status[i].sample2= *samples++;\n\n\n\n bytestream_put_le16(&dst, c->status[i].sample2);\n\n }\n\n\n\n if(avctx->trellis > 0) {\n\n int n = avctx->block_align - 7*avctx->channels;\n\n uint8_t buf[2][n];\n\n if(avctx->channels == 1) {\n\n n *= 2;\n\n adpcm_compress_trellis(avctx, samples, buf[0], &c->status[0], n);\n\n for(i=0; istatus[0], n);\n\n adpcm_compress_trellis(avctx, samples+1, buf[1], &c->status[1], n);\n\n for(i=0; ichannels; iblock_align; i++) {\n\n int nibble;\n\n nibble = adpcm_ms_compress_sample(&c->status[ 0], *samples++)<<4;\n\n nibble|= adpcm_ms_compress_sample(&c->status[st], *samples++);\n\n *dst++ = nibble;\n\n }\n\n break;\n\n case CODEC_ID_ADPCM_YAMAHA:\n\n n = avctx->frame_size / 2;\n\n if(avctx->trellis > 0) {\n\n uint8_t buf[2][n*2];\n\n n *= 2;\n\n if(avctx->channels == 1) {\n\n adpcm_compress_trellis(avctx, samples, buf[0], &c->status[0], n);\n\n for(i=0; istatus[0], n);\n\n adpcm_compress_trellis(avctx, samples+1, buf[1], &c->status[1], n);\n\n for(i=0; i0; n--) {\n\n for(i = 0; i < avctx->channels; i++) {\n\n int nibble;\n\n nibble = adpcm_yamaha_compress_sample(&c->status[i], samples[i]);\n\n nibble |= adpcm_yamaha_compress_sample(&c->status[i], samples[i+avctx->channels]) << 4;\n\n *dst++ = nibble;\n\n }\n\n samples += 2 * avctx->channels;\n\n }\n\n break;\n\n default:\n\n return -1;\n\n }\n\n return dst - frame;\n\n}\n", + "output": "0", + "index": 4188 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int net_client_init(Monitor *mon, const char *device, const char *p)\n\n{\n\n char buf[1024];\n\n int vlan_id, ret;\n\n VLANState *vlan;\n\n char *name = NULL;\n\n\n\n vlan_id = 0;\n\n if (get_param_value(buf, sizeof(buf), \"vlan\", p)) {\n\n vlan_id = strtol(buf, NULL, 0);\n\n }\n\n vlan = qemu_find_vlan(vlan_id, 1);\n\n\n\n if (get_param_value(buf, sizeof(buf), \"name\", p)) {\n\n name = qemu_strdup(buf);\n\n }\n\n if (!strcmp(device, \"nic\")) {\n\n static const char * const nic_params[] = {\n\n \"vlan\", \"name\", \"macaddr\", \"model\", \"addr\", \"id\", \"vectors\", NULL\n\n };\n\n NICInfo *nd;\n\n uint8_t *macaddr;\n\n int idx = nic_get_free_idx();\n\n\n\n if (check_params(buf, sizeof(buf), nic_params, p) < 0) {\n\n config_error(mon, \"invalid parameter '%s' in '%s'\\n\", buf, p);\n\n ret = -1;\n\n goto out;\n\n }\n\n if (idx == -1 || nb_nics >= MAX_NICS) {\n\n config_error(mon, \"Too Many NICs\\n\");\n\n ret = -1;\n\n goto out;\n\n }\n\n nd = &nd_table[idx];\n\n memset(nd, 0, sizeof(*nd));\n\n macaddr = nd->macaddr;\n\n macaddr[0] = 0x52;\n\n macaddr[1] = 0x54;\n\n macaddr[2] = 0x00;\n\n macaddr[3] = 0x12;\n\n macaddr[4] = 0x34;\n\n macaddr[5] = 0x56 + idx;\n\n\n\n if (get_param_value(buf, sizeof(buf), \"macaddr\", p)) {\n\n if (parse_macaddr(macaddr, buf) < 0) {\n\n config_error(mon, \"invalid syntax for ethernet address\\n\");\n\n ret = -1;\n\n goto out;\n\n }\n\n }\n\n if (get_param_value(buf, sizeof(buf), \"model\", p)) {\n\n nd->model = qemu_strdup(buf);\n\n }\n\n if (get_param_value(buf, sizeof(buf), \"addr\", p)) {\n\n nd->devaddr = qemu_strdup(buf);\n\n }\n\n if (get_param_value(buf, sizeof(buf), \"id\", p)) {\n\n nd->id = qemu_strdup(buf);\n\n }\n\n nd->nvectors = NIC_NVECTORS_UNSPECIFIED;\n\n if (get_param_value(buf, sizeof(buf), \"vectors\", p)) {\n\n char *endptr;\n\n long vectors = strtol(buf, &endptr, 0);\n\n if (*endptr) {\n\n config_error(mon, \"invalid syntax for # of vectors\\n\");\n\n ret = -1;\n\n goto out;\n\n }\n\n if (vectors < 0 || vectors > 0x7ffffff) {\n\n config_error(mon, \"invalid # of vectors\\n\");\n\n ret = -1;\n\n goto out;\n\n }\n\n nd->nvectors = vectors;\n\n }\n\n nd->vlan = vlan;\n\n nd->name = name;\n\n nd->used = 1;\n\n name = NULL;\n\n nb_nics++;\n\n vlan->nb_guest_devs++;\n\n ret = idx;\n\n } else\n\n if (!strcmp(device, \"none\")) {\n\n if (*p != '\\0') {\n\n config_error(mon, \"'none' takes no parameters\\n\");\n\n ret = -1;\n\n goto out;\n\n }\n\n /* does nothing. It is needed to signal that no network cards\n\n are wanted */\n\n ret = 0;\n\n } else\n\n#ifdef CONFIG_SLIRP\n\n if (!strcmp(device, \"user\")) {\n\n static const char * const slirp_params[] = {\n\n \"vlan\", \"name\", \"hostname\", \"restrict\", \"ip\", \"net\", \"host\",\n\n \"tftp\", \"bootfile\", \"dhcpstart\", \"dns\", \"smb\", \"smbserver\",\n\n \"hostfwd\", \"guestfwd\", NULL\n\n };\n\n struct slirp_config_str *config;\n\n int restricted = 0;\n\n char *vnet = NULL;\n\n char *vhost = NULL;\n\n char *vhostname = NULL;\n\n char *tftp_export = NULL;\n\n char *bootfile = NULL;\n\n char *vdhcp_start = NULL;\n\n char *vnamesrv = NULL;\n\n char *smb_export = NULL;\n\n char *vsmbsrv = NULL;\n\n const char *q;\n\n\n\n if (check_params(buf, sizeof(buf), slirp_params, p) < 0) {\n\n config_error(mon, \"invalid parameter '%s' in '%s'\\n\", buf, p);\n\n ret = -1;\n\n goto out;\n\n }\n\n if (get_param_value(buf, sizeof(buf), \"ip\", p)) {\n\n int vnet_buflen = strlen(buf) + strlen(\"/24\") + 1;\n\n /* emulate legacy parameter */\n\n vnet = qemu_malloc(vnet_buflen);\n\n pstrcpy(vnet, vnet_buflen, buf);\n\n pstrcat(vnet, vnet_buflen, \"/24\");\n\n }\n\n if (get_param_value(buf, sizeof(buf), \"net\", p)) {\n\n vnet = qemu_strdup(buf);\n\n }\n\n if (get_param_value(buf, sizeof(buf), \"host\", p)) {\n\n vhost = qemu_strdup(buf);\n\n }\n\n if (get_param_value(buf, sizeof(buf), \"hostname\", p)) {\n\n vhostname = qemu_strdup(buf);\n\n }\n\n if (get_param_value(buf, sizeof(buf), \"restrict\", p)) {\n\n restricted = (buf[0] == 'y') ? 1 : 0;\n\n }\n\n if (get_param_value(buf, sizeof(buf), \"dhcpstart\", p)) {\n\n vdhcp_start = qemu_strdup(buf);\n\n }\n\n if (get_param_value(buf, sizeof(buf), \"dns\", p)) {\n\n vnamesrv = qemu_strdup(buf);\n\n }\n\n if (get_param_value(buf, sizeof(buf), \"tftp\", p)) {\n\n tftp_export = qemu_strdup(buf);\n\n }\n\n if (get_param_value(buf, sizeof(buf), \"bootfile\", p)) {\n\n bootfile = qemu_strdup(buf);\n\n }\n\n if (get_param_value(buf, sizeof(buf), \"smb\", p)) {\n\n smb_export = qemu_strdup(buf);\n\n if (get_param_value(buf, sizeof(buf), \"smbserver\", p)) {\n\n vsmbsrv = qemu_strdup(buf);\n\n }\n\n }\n\n q = p;\n\n while (1) {\n\n config = qemu_malloc(sizeof(*config));\n\n if (!get_next_param_value(config->str, sizeof(config->str),\n\n \"hostfwd\", &q)) {\n\n break;\n\n }\n\n config->flags = SLIRP_CFG_HOSTFWD;\n\n config->next = slirp_configs;\n\n slirp_configs = config;\n\n config = NULL;\n\n }\n\n q = p;\n\n while (1) {\n\n config = qemu_malloc(sizeof(*config));\n\n if (!get_next_param_value(config->str, sizeof(config->str),\n\n \"guestfwd\", &q)) {\n\n break;\n\n }\n\n config->flags = 0;\n\n config->next = slirp_configs;\n\n slirp_configs = config;\n\n config = NULL;\n\n }\n\n qemu_free(config);\n\n vlan->nb_host_devs++;\n\n ret = net_slirp_init(mon, vlan, device, name, restricted, vnet, vhost,\n\n vhostname, tftp_export, bootfile, vdhcp_start,\n\n vnamesrv, smb_export, vsmbsrv);\n\n while (slirp_configs) {\n\n config = slirp_configs;\n\n slirp_configs = config->next;\n\n qemu_free(config);\n\n }\n\n qemu_free(vnet);\n\n qemu_free(vhost);\n\n qemu_free(vhostname);\n\n qemu_free(tftp_export);\n\n qemu_free(bootfile);\n\n qemu_free(vdhcp_start);\n\n qemu_free(vnamesrv);\n\n qemu_free(smb_export);\n\n qemu_free(vsmbsrv);\n\n } else if (!strcmp(device, \"channel\")) {\n\n if (QTAILQ_EMPTY(&slirp_stacks)) {\n\n struct slirp_config_str *config;\n\n\n\n config = qemu_malloc(sizeof(*config));\n\n pstrcpy(config->str, sizeof(config->str), p);\n\n config->flags = SLIRP_CFG_LEGACY;\n\n config->next = slirp_configs;\n\n slirp_configs = config;\n\n } else {\n\n slirp_guestfwd(QTAILQ_FIRST(&slirp_stacks), mon, p, 1);\n\n }\n\n ret = 0;\n\n } else\n\n#endif\n\n#ifdef _WIN32\n\n if (!strcmp(device, \"tap\")) {\n\n static const char * const tap_params[] = {\n\n \"vlan\", \"name\", \"ifname\", NULL\n\n };\n\n char ifname[64];\n\n\n\n if (check_params(buf, sizeof(buf), tap_params, p) < 0) {\n\n config_error(mon, \"invalid parameter '%s' in '%s'\\n\", buf, p);\n\n ret = -1;\n\n goto out;\n\n }\n\n if (get_param_value(ifname, sizeof(ifname), \"ifname\", p) <= 0) {\n\n config_error(mon, \"tap: no interface name\\n\");\n\n ret = -1;\n\n goto out;\n\n }\n\n vlan->nb_host_devs++;\n\n ret = tap_win32_init(vlan, device, name, ifname);\n\n } else\n\n#elif defined (_AIX)\n\n#else\n\n if (!strcmp(device, \"tap\")) {\n\n char ifname[64], chkbuf[64];\n\n char setup_script[1024], down_script[1024];\n\n TAPState *s;\n\n int fd;\n\n vlan->nb_host_devs++;\n\n if (get_param_value(buf, sizeof(buf), \"fd\", p) > 0) {\n\n static const char * const fd_params[] = {\n\n \"vlan\", \"name\", \"fd\", \"sndbuf\", NULL\n\n };\n\n ret = -1;\n\n if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {\n\n config_error(mon, \"invalid parameter '%s' in '%s'\\n\", chkbuf, p);\n\n goto out;\n\n }\n\n fd = net_handle_fd_param(mon, buf);\n\n if (fd == -1) {\n\n goto out;\n\n }\n\n fcntl(fd, F_SETFL, O_NONBLOCK);\n\n s = net_tap_fd_init(vlan, device, name, fd);\n\n if (!s) {\n\n close(fd);\n\n }\n\n } else {\n\n static const char * const tap_params[] = {\n\n \"vlan\", \"name\", \"ifname\", \"script\", \"downscript\", \"sndbuf\", NULL\n\n };\n\n if (check_params(chkbuf, sizeof(chkbuf), tap_params, p) < 0) {\n\n config_error(mon, \"invalid parameter '%s' in '%s'\\n\", chkbuf, p);\n\n ret = -1;\n\n goto out;\n\n }\n\n if (get_param_value(ifname, sizeof(ifname), \"ifname\", p) <= 0) {\n\n ifname[0] = '\\0';\n\n }\n\n if (get_param_value(setup_script, sizeof(setup_script), \"script\", p) == 0) {\n\n pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT);\n\n }\n\n if (get_param_value(down_script, sizeof(down_script), \"downscript\", p) == 0) {\n\n pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT);\n\n }\n\n s = net_tap_init(vlan, device, name, ifname, setup_script, down_script);\n\n }\n\n if (s != NULL) {\n\n const char *sndbuf_str = NULL;\n\n if (get_param_value(buf, sizeof(buf), \"sndbuf\", p)) {\n\n sndbuf_str = buf;\n\n }\n\n tap_set_sndbuf(s, sndbuf_str, mon);\n\n ret = 0;\n\n } else {\n\n ret = -1;\n\n }\n\n } else\n\n#endif\n\n if (!strcmp(device, \"socket\")) {\n\n char chkbuf[64];\n\n if (get_param_value(buf, sizeof(buf), \"fd\", p) > 0) {\n\n static const char * const fd_params[] = {\n\n \"vlan\", \"name\", \"fd\", NULL\n\n };\n\n int fd;\n\n ret = -1;\n\n if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {\n\n config_error(mon, \"invalid parameter '%s' in '%s'\\n\", chkbuf, p);\n\n goto out;\n\n }\n\n fd = net_handle_fd_param(mon, buf);\n\n if (fd == -1) {\n\n goto out;\n\n }\n\n if (!net_socket_fd_init(vlan, device, name, fd, 1)) {\n\n close(fd);\n\n goto out;\n\n }\n\n ret = 0;\n\n } else if (get_param_value(buf, sizeof(buf), \"listen\", p) > 0) {\n\n static const char * const listen_params[] = {\n\n \"vlan\", \"name\", \"listen\", NULL\n\n };\n\n if (check_params(chkbuf, sizeof(chkbuf), listen_params, p) < 0) {\n\n config_error(mon, \"invalid parameter '%s' in '%s'\\n\", chkbuf, p);\n\n ret = -1;\n\n goto out;\n\n }\n\n ret = net_socket_listen_init(vlan, device, name, buf);\n\n } else if (get_param_value(buf, sizeof(buf), \"connect\", p) > 0) {\n\n static const char * const connect_params[] = {\n\n \"vlan\", \"name\", \"connect\", NULL\n\n };\n\n if (check_params(chkbuf, sizeof(chkbuf), connect_params, p) < 0) {\n\n config_error(mon, \"invalid parameter '%s' in '%s'\\n\", chkbuf, p);\n\n ret = -1;\n\n goto out;\n\n }\n\n ret = net_socket_connect_init(vlan, device, name, buf);\n\n } else if (get_param_value(buf, sizeof(buf), \"mcast\", p) > 0) {\n\n static const char * const mcast_params[] = {\n\n \"vlan\", \"name\", \"mcast\", NULL\n\n };\n\n if (check_params(chkbuf, sizeof(chkbuf), mcast_params, p) < 0) {\n\n config_error(mon, \"invalid parameter '%s' in '%s'\\n\", chkbuf, p);\n\n ret = -1;\n\n goto out;\n\n }\n\n ret = net_socket_mcast_init(vlan, device, name, buf);\n\n } else {\n\n config_error(mon, \"Unknown socket options: %s\\n\", p);\n\n ret = -1;\n\n goto out;\n\n }\n\n vlan->nb_host_devs++;\n\n } else\n\n#ifdef CONFIG_VDE\n\n if (!strcmp(device, \"vde\")) {\n\n static const char * const vde_params[] = {\n\n \"vlan\", \"name\", \"sock\", \"port\", \"group\", \"mode\", NULL\n\n };\n\n char vde_sock[1024], vde_group[512];\n\n\tint vde_port, vde_mode;\n\n\n\n if (check_params(buf, sizeof(buf), vde_params, p) < 0) {\n\n config_error(mon, \"invalid parameter '%s' in '%s'\\n\", buf, p);\n\n ret = -1;\n\n goto out;\n\n }\n\n vlan->nb_host_devs++;\n\n if (get_param_value(vde_sock, sizeof(vde_sock), \"sock\", p) <= 0) {\n\n\t vde_sock[0] = '\\0';\n\n\t}\n\n\tif (get_param_value(buf, sizeof(buf), \"port\", p) > 0) {\n\n\t vde_port = strtol(buf, NULL, 10);\n\n\t} else {\n\n\t vde_port = 0;\n\n\t}\n\n\tif (get_param_value(vde_group, sizeof(vde_group), \"group\", p) <= 0) {\n\n\t vde_group[0] = '\\0';\n\n\t}\n\n\tif (get_param_value(buf, sizeof(buf), \"mode\", p) > 0) {\n\n\t vde_mode = strtol(buf, NULL, 8);\n\n\t} else {\n\n\t vde_mode = 0700;\n\n\t}\n\n\tret = net_vde_init(vlan, device, name, vde_sock, vde_port, vde_group, vde_mode);\n\n } else\n\n#endif\n\n if (!strcmp(device, \"dump\")) {\n\n int len = 65536;\n\n\n\n if (get_param_value(buf, sizeof(buf), \"len\", p) > 0) {\n\n len = strtol(buf, NULL, 0);\n\n }\n\n if (!get_param_value(buf, sizeof(buf), \"file\", p)) {\n\n snprintf(buf, sizeof(buf), \"qemu-vlan%d.pcap\", vlan_id);\n\n }\n\n ret = net_dump_init(mon, vlan, device, name, buf, len);\n\n } else {\n\n config_error(mon, \"Unknown network device: %s\\n\", device);\n\n ret = -1;\n\n goto out;\n\n }\n\n if (ret < 0) {\n\n config_error(mon, \"Could not initialize device '%s'\\n\", device);\n\n }\n\nout:\n\n qemu_free(name);\n\n return ret;\n\n}\n", + "output": "1", + "index": 7202 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int pci_ivshmem_init(PCIDevice *dev)\n\n{\n\n IVShmemState *s = DO_UPCAST(IVShmemState, dev, dev);\n\n uint8_t *pci_conf;\n\n\n\n if (s->sizearg == NULL)\n\n s->ivshmem_size = 4 << 20; /* 4 MB default */\n\n else {\n\n s->ivshmem_size = ivshmem_get_size(s);\n\n }\n\n\n\n register_savevm(&s->dev.qdev, \"ivshmem\", 0, 0, ivshmem_save, ivshmem_load,\n\n dev);\n\n\n\n /* IRQFD requires MSI */\n\n if (ivshmem_has_feature(s, IVSHMEM_IOEVENTFD) &&\n\n !ivshmem_has_feature(s, IVSHMEM_MSI)) {\n\n fprintf(stderr, \"ivshmem: ioeventfd/irqfd requires MSI\\n\");\n\n exit(1);\n\n }\n\n\n\n /* check that role is reasonable */\n\n if (s->role) {\n\n if (strncmp(s->role, \"peer\", 5) == 0) {\n\n s->role_val = IVSHMEM_PEER;\n\n } else if (strncmp(s->role, \"master\", 7) == 0) {\n\n s->role_val = IVSHMEM_MASTER;\n\n } else {\n\n fprintf(stderr, \"ivshmem: 'role' must be 'peer' or 'master'\\n\");\n\n exit(1);\n\n }\n\n } else {\n\n s->role_val = IVSHMEM_MASTER; /* default */\n\n }\n\n\n\n if (s->role_val == IVSHMEM_PEER) {\n\n register_device_unmigratable(&s->dev.qdev, \"ivshmem\", s);\n\n }\n\n\n\n pci_conf = s->dev.config;\n\n pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_REDHAT_QUMRANET);\n\n pci_conf[0x02] = 0x10;\n\n pci_conf[0x03] = 0x11;\n\n pci_conf[PCI_COMMAND] = PCI_COMMAND_IO | PCI_COMMAND_MEMORY;\n\n pci_config_set_class(pci_conf, PCI_CLASS_MEMORY_RAM);\n\n pci_conf[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL;\n\n\n\n pci_config_set_interrupt_pin(pci_conf, 1);\n\n\n\n s->shm_pci_addr = 0;\n\n s->ivshmem_offset = 0;\n\n s->shm_fd = 0;\n\n\n\n s->ivshmem_mmio_io_addr = cpu_register_io_memory(ivshmem_mmio_read,\n\n ivshmem_mmio_write, s, DEVICE_NATIVE_ENDIAN);\n\n /* region for registers*/\n\n pci_register_bar(&s->dev, 0, IVSHMEM_REG_BAR_SIZE,\n\n PCI_BASE_ADDRESS_SPACE_MEMORY, ivshmem_mmio_map);\n\n\n\n if ((s->server_chr != NULL) &&\n\n (strncmp(s->server_chr->filename, \"unix:\", 5) == 0)) {\n\n /* if we get a UNIX socket as the parameter we will talk\n\n * to the ivshmem server to receive the memory region */\n\n\n\n if (s->shmobj != NULL) {\n\n fprintf(stderr, \"WARNING: do not specify both 'chardev' \"\n\n \"and 'shm' with ivshmem\\n\");\n\n }\n\n\n\n IVSHMEM_DPRINTF(\"using shared memory server (socket = %s)\\n\",\n\n s->server_chr->filename);\n\n\n\n if (ivshmem_has_feature(s, IVSHMEM_MSI)) {\n\n ivshmem_setup_msi(s);\n\n }\n\n\n\n /* we allocate enough space for 16 guests and grow as needed */\n\n s->nb_peers = 16;\n\n s->vm_id = -1;\n\n\n\n /* allocate/initialize space for interrupt handling */\n\n s->peers = qemu_mallocz(s->nb_peers * sizeof(Peer));\n\n\n\n pci_register_bar(&s->dev, 2, s->ivshmem_size,\n\n PCI_BASE_ADDRESS_SPACE_MEMORY, ivshmem_map);\n\n\n\n s->eventfd_chr = qemu_mallocz(s->vectors * sizeof(CharDriverState *));\n\n\n\n qemu_chr_add_handlers(s->server_chr, ivshmem_can_receive, ivshmem_read,\n\n ivshmem_event, s);\n\n } else {\n\n /* just map the file immediately, we're not using a server */\n\n int fd;\n\n\n\n if (s->shmobj == NULL) {\n\n fprintf(stderr, \"Must specify 'chardev' or 'shm' to ivshmem\\n\");\n\n }\n\n\n\n IVSHMEM_DPRINTF(\"using shm_open (shm object = %s)\\n\", s->shmobj);\n\n\n\n /* try opening with O_EXCL and if it succeeds zero the memory\n\n * by truncating to 0 */\n\n if ((fd = shm_open(s->shmobj, O_CREAT|O_RDWR|O_EXCL,\n\n S_IRWXU|S_IRWXG|S_IRWXO)) > 0) {\n\n /* truncate file to length PCI device's memory */\n\n if (ftruncate(fd, s->ivshmem_size) != 0) {\n\n fprintf(stderr, \"ivshmem: could not truncate shared file\\n\");\n\n }\n\n\n\n } else if ((fd = shm_open(s->shmobj, O_CREAT|O_RDWR,\n\n S_IRWXU|S_IRWXG|S_IRWXO)) < 0) {\n\n fprintf(stderr, \"ivshmem: could not open shared file\\n\");\n\n exit(-1);\n\n\n\n }\n\n\n\n if (check_shm_size(s, fd) == -1) {\n\n exit(-1);\n\n }\n\n\n\n create_shared_memory_BAR(s, fd);\n\n\n\n }\n\n\n\n return 0;\n\n}\n", + "output": "0", + "index": 25280 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int cpu_load_old(QEMUFile *f, void *opaque, int version_id)\n\n{\n\n PowerPCCPU *cpu = opaque;\n\n CPUPPCState *env = &cpu->env;\n\n unsigned int i, j;\n\n target_ulong sdr1;\n\n uint32_t fpscr;\n\n target_ulong xer;\n\n\n\n for (i = 0; i < 32; i++)\n\n qemu_get_betls(f, &env->gpr[i]);\n\n#if !defined(TARGET_PPC64)\n\n for (i = 0; i < 32; i++)\n\n qemu_get_betls(f, &env->gprh[i]);\n\n#endif\n\n qemu_get_betls(f, &env->lr);\n\n qemu_get_betls(f, &env->ctr);\n\n for (i = 0; i < 8; i++)\n\n qemu_get_be32s(f, &env->crf[i]);\n\n qemu_get_betls(f, &xer);\n\n cpu_write_xer(env, xer);\n\n qemu_get_betls(f, &env->reserve_addr);\n\n qemu_get_betls(f, &env->msr);\n\n for (i = 0; i < 4; i++)\n\n qemu_get_betls(f, &env->tgpr[i]);\n\n for (i = 0; i < 32; i++) {\n\n union {\n\n float64 d;\n\n uint64_t l;\n\n } u;\n\n u.l = qemu_get_be64(f);\n\n env->fpr[i] = u.d;\n\n }\n\n qemu_get_be32s(f, &fpscr);\n\n env->fpscr = fpscr;\n\n qemu_get_sbe32s(f, &env->access_type);\n\n#if defined(TARGET_PPC64)\n\n qemu_get_betls(f, &env->spr[SPR_ASR]);\n\n qemu_get_sbe32s(f, &env->slb_nr);\n\n#endif\n\n qemu_get_betls(f, &sdr1);\n\n for (i = 0; i < 32; i++)\n\n qemu_get_betls(f, &env->sr[i]);\n\n for (i = 0; i < 2; i++)\n\n for (j = 0; j < 8; j++)\n\n qemu_get_betls(f, &env->DBAT[i][j]);\n\n for (i = 0; i < 2; i++)\n\n for (j = 0; j < 8; j++)\n\n qemu_get_betls(f, &env->IBAT[i][j]);\n\n qemu_get_sbe32s(f, &env->nb_tlb);\n\n qemu_get_sbe32s(f, &env->tlb_per_way);\n\n qemu_get_sbe32s(f, &env->nb_ways);\n\n qemu_get_sbe32s(f, &env->last_way);\n\n qemu_get_sbe32s(f, &env->id_tlbs);\n\n qemu_get_sbe32s(f, &env->nb_pids);\n\n if (env->tlb.tlb6) {\n\n // XXX assumes 6xx\n\n for (i = 0; i < env->nb_tlb; i++) {\n\n qemu_get_betls(f, &env->tlb.tlb6[i].pte0);\n\n qemu_get_betls(f, &env->tlb.tlb6[i].pte1);\n\n qemu_get_betls(f, &env->tlb.tlb6[i].EPN);\n\n }\n\n }\n\n for (i = 0; i < 4; i++)\n\n qemu_get_betls(f, &env->pb[i]);\n\n for (i = 0; i < 1024; i++)\n\n qemu_get_betls(f, &env->spr[i]);\n\n ppc_store_sdr1(env, sdr1);\n\n qemu_get_be32s(f, &env->vscr);\n\n qemu_get_be64s(f, &env->spe_acc);\n\n qemu_get_be32s(f, &env->spe_fscr);\n\n qemu_get_betls(f, &env->msr_mask);\n\n qemu_get_be32s(f, &env->flags);\n\n qemu_get_sbe32s(f, &env->error_code);\n\n qemu_get_be32s(f, &env->pending_interrupts);\n\n qemu_get_be32s(f, &env->irq_input_state);\n\n for (i = 0; i < POWERPC_EXCP_NB; i++)\n\n qemu_get_betls(f, &env->excp_vectors[i]);\n\n qemu_get_betls(f, &env->excp_prefix);\n\n qemu_get_betls(f, &env->ivor_mask);\n\n qemu_get_betls(f, &env->ivpr_mask);\n\n qemu_get_betls(f, &env->hreset_vector);\n\n qemu_get_betls(f, &env->nip);\n\n qemu_get_betls(f, &env->hflags);\n\n qemu_get_betls(f, &env->hflags_nmsr);\n\n qemu_get_sbe32s(f, &env->mmu_idx);\n\n qemu_get_sbe32(f); /* Discard unused power_mode */\n\n\n\n return 0;\n\n}\n", + "output": "1", + "index": 13130 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int avi_read_packet(AVFormatContext *s, AVPacket *pkt)\n\n{\n\n AVIContext *avi = s->priv_data;\n\n ByteIOContext *pb = &s->pb;\n\n int n, d[8], size;\n\n offset_t i;\n\n void* dstr;\n\n\n\n memset(d, -1, sizeof(int)*8);\n\n \n\n if (avi->dv_demux) {\n\n size = dv_get_packet(avi->dv_demux, pkt);\n\n\tif (size >= 0)\n\n\t return size;\n\n }\n\n \n\n for(i=url_ftell(pb); !url_feof(pb); i++) {\n\n int j;\n\n\n\n\tif (i >= avi->movi_end) {\n\n\t if (avi->is_odml) {\n\n\t\turl_fskip(pb, avi->riff_end - i);\n\n\t avi->riff_end = avi->movi_end = url_filesize(url_fileno(pb));\n\n\t } else\n\n\t break;\n\n\t}\n\n\n\n for(j=0; j<7; j++)\n\n d[j]= d[j+1];\n\n d[7]= get_byte(pb);\n\n \n\n size= d[4] + (d[5]<<8) + (d[6]<<16) + (d[7]<<24);\n\n \n\n //parse ix##\n\n n= (d[2] - '0') * 10 + (d[3] - '0');\n\n if( d[2] >= '0' && d[2] <= '9'\n\n && d[3] >= '0' && d[3] <= '9'\n\n && d[0] == 'i' && d[1] == 'x'\n\n && n < s->nb_streams\n\n && i + size <= avi->movi_end){\n\n \n\n url_fskip(pb, size);\n\n }\n\n\n\n\t//parse JUNK\n\n if(d[0] == 'J' && d[1] == 'U' && d[2] == 'N' && d[3] == 'K' &&\n\n i + size <= avi->movi_end) {\n\n \n\n url_fskip(pb, size);\n\n }\n\n \n\n //parse ##dc/##wb\n\n n= (d[0] - '0') * 10 + (d[1] - '0');\n\n if( d[0] >= '0' && d[0] <= '9'\n\n && d[1] >= '0' && d[1] <= '9'\n\n && ((d[2] == 'd' && d[3] == 'c') || \n\n\t (d[2] == 'w' && d[3] == 'b') || \n\n\t\t(d[2] == 'd' && d[3] == 'b') ||\n\n\t\t(d[2] == '_' && d[3] == '_'))\n\n && n < s->nb_streams\n\n && i + size <= avi->movi_end) {\n\n \n\n av_new_packet(pkt, size);\n\n get_buffer(pb, pkt->data, size);\n\n if (size & 1) {\n\n get_byte(pb);\n\n\t\tsize++;\n\n\t }\n\n\t\n\n\t if (avi->dv_demux) {\n\n\t dstr = pkt->destruct;\n\n\t size = dv_produce_packet(avi->dv_demux, pkt,\n\n\t\t pkt->data, pkt->size);\n\n\t\tpkt->destruct = dstr;\n\n pkt->flags |= PKT_FLAG_KEY;\n\n\t } else {\n\n AVStream *st;\n\n AVIStream *ast;\n\n st = s->streams[n];\n\n ast = st->priv_data;\n\n \n\n /* XXX: how to handle B frames in avi ? */\n\n pkt->dts = ast->frame_offset;\n\n// pkt->dts += ast->start;\n\n if(ast->sample_size)\n\n pkt->dts /= ast->sample_size;\n\n//av_log(NULL, AV_LOG_DEBUG, \"dts:%Ld offset:%d %d/%d smpl_siz:%d base:%d st:%d size:%d\\n\", pkt->dts, ast->frame_offset, ast->scale, ast->rate, ast->sample_size, AV_TIME_BASE, n, size);\n\n pkt->stream_index = n;\n\n /* FIXME: We really should read index for that */\n\n if (st->codec.codec_type == CODEC_TYPE_VIDEO) {\n\n if (ast->frame_offset < ast->nb_index_entries) {\n\n if (ast->index_entries[ast->frame_offset].flags & AVIIF_INDEX)\n\n pkt->flags |= PKT_FLAG_KEY; \n\n } else {\n\n /* if no index, better to say that all frames\n\n are key frames */\n\n pkt->flags |= PKT_FLAG_KEY;\n\n }\n\n } else {\n\n pkt->flags |= PKT_FLAG_KEY; \n\n }\n\n if(ast->sample_size)\n\n ast->frame_offset += pkt->size;\n\n else\n\n ast->frame_offset++;\n\n\t }\n\n return size;\n\n }\n\n }\n\n return -1;\n\n}\n", + "output": "0", + "index": 24790 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static av_cold int read_specific_config(ALSDecContext *ctx)\n\n{\n\n GetBitContext gb;\n\n uint64_t ht_size;\n\n int i, config_offset;\n\n MPEG4AudioConfig m4ac;\n\n ALSSpecificConfig *sconf = &ctx->sconf;\n\n AVCodecContext *avctx = ctx->avctx;\n\n uint32_t als_id, header_size, trailer_size;\n\n\n\n init_get_bits(&gb, avctx->extradata, avctx->extradata_size * 8);\n\n\n\n config_offset = avpriv_mpeg4audio_get_config(&m4ac, avctx->extradata,\n\n avctx->extradata_size * 8, 1);\n\n\n\n if (config_offset < 0)\n\n return -1;\n\n\n\n skip_bits_long(&gb, config_offset);\n\n\n\n if (get_bits_left(&gb) < (30 << 3))\n\n return -1;\n\n\n\n // read the fixed items\n\n als_id = get_bits_long(&gb, 32);\n\n avctx->sample_rate = m4ac.sample_rate;\n\n skip_bits_long(&gb, 32); // sample rate already known\n\n sconf->samples = get_bits_long(&gb, 32);\n\n avctx->channels = m4ac.channels;\n\n skip_bits(&gb, 16); // number of channels already known\n\n skip_bits(&gb, 3); // skip file_type\n\n sconf->resolution = get_bits(&gb, 3);\n\n sconf->floating = get_bits1(&gb);\n\n sconf->msb_first = get_bits1(&gb);\n\n sconf->frame_length = get_bits(&gb, 16) + 1;\n\n sconf->ra_distance = get_bits(&gb, 8);\n\n sconf->ra_flag = get_bits(&gb, 2);\n\n sconf->adapt_order = get_bits1(&gb);\n\n sconf->coef_table = get_bits(&gb, 2);\n\n sconf->long_term_prediction = get_bits1(&gb);\n\n sconf->max_order = get_bits(&gb, 10);\n\n sconf->block_switching = get_bits(&gb, 2);\n\n sconf->bgmc = get_bits1(&gb);\n\n sconf->sb_part = get_bits1(&gb);\n\n sconf->joint_stereo = get_bits1(&gb);\n\n sconf->mc_coding = get_bits1(&gb);\n\n sconf->chan_config = get_bits1(&gb);\n\n sconf->chan_sort = get_bits1(&gb);\n\n sconf->crc_enabled = get_bits1(&gb);\n\n sconf->rlslms = get_bits1(&gb);\n\n skip_bits(&gb, 5); // skip 5 reserved bits\n\n skip_bits1(&gb); // skip aux_data_enabled\n\n\n\n\n\n // check for ALSSpecificConfig struct\n\n if (als_id != MKBETAG('A','L','S','\\0'))\n\n return -1;\n\n\n\n ctx->cur_frame_length = sconf->frame_length;\n\n\n\n // read channel config\n\n if (sconf->chan_config)\n\n sconf->chan_config_info = get_bits(&gb, 16);\n\n // TODO: use this to set avctx->channel_layout\n\n\n\n\n\n // read channel sorting\n\n if (sconf->chan_sort && avctx->channels > 1) {\n\n int chan_pos_bits = av_ceil_log2(avctx->channels);\n\n int bits_needed = avctx->channels * chan_pos_bits + 7;\n\n if (get_bits_left(&gb) < bits_needed)\n\n return -1;\n\n\n\n if (!(sconf->chan_pos = av_malloc(avctx->channels * sizeof(*sconf->chan_pos))))\n\n return AVERROR(ENOMEM);\n\n\n\n ctx->cs_switch = 1;\n\n\n\n for (i = 0; i < avctx->channels; i++) {\n\n int idx;\n\n\n\n idx = get_bits(&gb, chan_pos_bits);\n\n if (idx >= avctx->channels) {\n\n av_log(avctx, AV_LOG_WARNING, \"Invalid channel reordering.\\n\");\n\n ctx->cs_switch = 0;\n\n break;\n\n }\n\n sconf->chan_pos[idx] = i;\n\n }\n\n\n\n align_get_bits(&gb);\n\n }\n\n\n\n\n\n // read fixed header and trailer sizes,\n\n // if size = 0xFFFFFFFF then there is no data field!\n\n if (get_bits_left(&gb) < 64)\n\n return -1;\n\n\n\n header_size = get_bits_long(&gb, 32);\n\n trailer_size = get_bits_long(&gb, 32);\n\n if (header_size == 0xFFFFFFFF)\n\n header_size = 0;\n\n if (trailer_size == 0xFFFFFFFF)\n\n trailer_size = 0;\n\n\n\n ht_size = ((int64_t)(header_size) + (int64_t)(trailer_size)) << 3;\n\n\n\n\n\n // skip the header and trailer data\n\n if (get_bits_left(&gb) < ht_size)\n\n return -1;\n\n\n\n if (ht_size > INT32_MAX)\n\n return -1;\n\n\n\n skip_bits_long(&gb, ht_size);\n\n\n\n\n\n // initialize CRC calculation\n\n if (sconf->crc_enabled) {\n\n if (get_bits_left(&gb) < 32)\n\n return -1;\n\n\n\n if (avctx->err_recognition & (AV_EF_CRCCHECK|AV_EF_CAREFUL)) {\n\n ctx->crc_table = av_crc_get_table(AV_CRC_32_IEEE_LE);\n\n ctx->crc = 0xFFFFFFFF;\n\n ctx->crc_org = ~get_bits_long(&gb, 32);\n\n } else\n\n skip_bits_long(&gb, 32);\n\n }\n\n\n\n\n\n // no need to read the rest of ALSSpecificConfig (ra_unit_size & aux data)\n\n\n\n dprint_specific_config(ctx);\n\n\n\n return 0;\n\n}\n", + "output": "1", + "index": 14055 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void vga_draw_graphic(VGAState *s, int full_update)\n\n{\n\n int y1, y, update, page_min, page_max, linesize, y_start, double_scan, mask, depth;\n\n int width, height, shift_control, line_offset, page0, page1, bwidth, bits;\n\n int disp_width, multi_scan, multi_run;\n\n uint8_t *d;\n\n uint32_t v, addr1, addr;\n\n vga_draw_line_func *vga_draw_line;\n\n\n\n full_update |= update_basic_params(s);\n\n\n\n if (!full_update)\n\n vga_sync_dirty_bitmap(s);\n\n\n\n s->get_resolution(s, &width, &height);\n\n disp_width = width;\n\n\n\n shift_control = (s->gr[0x05] >> 5) & 3;\n\n double_scan = (s->cr[0x09] >> 7);\n\n if (shift_control != 1) {\n\n multi_scan = (((s->cr[0x09] & 0x1f) + 1) << double_scan) - 1;\n\n } else {\n\n /* in CGA modes, multi_scan is ignored */\n\n /* XXX: is it correct ? */\n\n multi_scan = double_scan;\n\n }\n\n multi_run = multi_scan;\n\n if (shift_control != s->shift_control ||\n\n double_scan != s->double_scan) {\n\n full_update = 1;\n\n s->shift_control = shift_control;\n\n s->double_scan = double_scan;\n\n }\n\n\n\n depth = s->get_bpp(s);\n\n if (s->line_offset != s->last_line_offset ||\n\n disp_width != s->last_width ||\n\n height != s->last_height ||\n\n s->last_depth != depth) {\n\n#if defined(WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN)\n\n if (depth == 16 || depth == 32) {\n\n#else\n\n if (depth == 32) {\n\n#endif\n\n if (is_graphic_console()) {\n\n qemu_free_displaysurface(s->ds);\n\n s->ds->surface = qemu_create_displaysurface_from(disp_width, height, depth,\n\n s->line_offset,\n\n s->vram_ptr + (s->start_addr * 4));\n\n#if defined(WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)\n\n s->ds->surface->pf = qemu_different_endianness_pixelformat(depth);\n\n#endif\n\n dpy_resize(s->ds);\n\n } else {\n\n qemu_console_resize(s->ds, disp_width, height);\n\n }\n\n } else {\n\n qemu_console_resize(s->ds, disp_width, height);\n\n }\n\n s->last_scr_width = disp_width;\n\n s->last_scr_height = height;\n\n s->last_width = disp_width;\n\n s->last_height = height;\n\n s->last_line_offset = s->line_offset;\n\n s->last_depth = depth;\n\n full_update = 1;\n\n } else if (is_graphic_console() && is_buffer_shared(s->ds->surface) &&\n\n (full_update || s->ds->surface->data != s->vram_ptr + (s->start_addr * 4))) {\n\n s->ds->surface->data = s->vram_ptr + (s->start_addr * 4);\n\n dpy_setdata(s->ds);\n\n }\n\n\n\n s->rgb_to_pixel =\n\n rgb_to_pixel_dup_table[get_depth_index(s->ds)];\n\n\n\n if (shift_control == 0) {\n\n full_update |= update_palette16(s);\n\n if (s->sr[0x01] & 8) {\n\n v = VGA_DRAW_LINE4D2;\n\n disp_width <<= 1;\n\n } else {\n\n v = VGA_DRAW_LINE4;\n\n }\n\n bits = 4;\n\n } else if (shift_control == 1) {\n\n full_update |= update_palette16(s);\n\n if (s->sr[0x01] & 8) {\n\n v = VGA_DRAW_LINE2D2;\n\n disp_width <<= 1;\n\n } else {\n\n v = VGA_DRAW_LINE2;\n\n }\n\n bits = 4;\n\n } else {\n\n switch(s->get_bpp(s)) {\n\n default:\n\n case 0:\n\n full_update |= update_palette256(s);\n\n v = VGA_DRAW_LINE8D2;\n\n bits = 4;\n\n break;\n\n case 8:\n\n full_update |= update_palette256(s);\n\n v = VGA_DRAW_LINE8;\n\n bits = 8;\n\n break;\n\n case 15:\n\n v = VGA_DRAW_LINE15;\n\n bits = 16;\n\n break;\n\n case 16:\n\n v = VGA_DRAW_LINE16;\n\n bits = 16;\n\n break;\n\n case 24:\n\n v = VGA_DRAW_LINE24;\n\n bits = 24;\n\n break;\n\n case 32:\n\n v = VGA_DRAW_LINE32;\n\n bits = 32;\n\n break;\n\n }\n\n }\n\n vga_draw_line = vga_draw_line_table[v * NB_DEPTHS + get_depth_index(s->ds)];\n\n\n\n if (!is_buffer_shared(s->ds->surface) && s->cursor_invalidate)\n\n s->cursor_invalidate(s);\n\n\n\n line_offset = s->line_offset;\n\n#if 0\n\n printf(\"w=%d h=%d v=%d line_offset=%d cr[0x09]=0x%02x cr[0x17]=0x%02x linecmp=%d sr[0x01]=0x%02x\\n\",\n\n width, height, v, line_offset, s->cr[9], s->cr[0x17], s->line_compare, s->sr[0x01]);\n\n#endif\n\n addr1 = (s->start_addr * 4);\n\n bwidth = (width * bits + 7) / 8;\n\n y_start = -1;\n\n page_min = 0x7fffffff;\n\n page_max = -1;\n\n d = ds_get_data(s->ds);\n\n linesize = ds_get_linesize(s->ds);\n\n y1 = 0;\n\n for(y = 0; y < height; y++) {\n\n addr = addr1;\n\n if (!(s->cr[0x17] & 1)) {\n\n int shift;\n\n /* CGA compatibility handling */\n\n shift = 14 + ((s->cr[0x17] >> 6) & 1);\n\n addr = (addr & ~(1 << shift)) | ((y1 & 1) << shift);\n\n }\n\n if (!(s->cr[0x17] & 2)) {\n\n addr = (addr & ~0x8000) | ((y1 & 2) << 14);\n\n }\n\n page0 = s->vram_offset + (addr & TARGET_PAGE_MASK);\n\n page1 = s->vram_offset + ((addr + bwidth - 1) & TARGET_PAGE_MASK);\n\n update = full_update |\n\n cpu_physical_memory_get_dirty(page0, VGA_DIRTY_FLAG) |\n\n cpu_physical_memory_get_dirty(page1, VGA_DIRTY_FLAG);\n\n if ((page1 - page0) > TARGET_PAGE_SIZE) {\n\n /* if wide line, can use another page */\n\n update |= cpu_physical_memory_get_dirty(page0 + TARGET_PAGE_SIZE,\n\n VGA_DIRTY_FLAG);\n\n }\n\n /* explicit invalidation for the hardware cursor */\n\n update |= (s->invalidated_y_table[y >> 5] >> (y & 0x1f)) & 1;\n\n if (update) {\n\n if (y_start < 0)\n\n y_start = y;\n\n if (page0 < page_min)\n\n page_min = page0;\n\n if (page1 > page_max)\n\n page_max = page1;\n\n if (!(is_buffer_shared(s->ds->surface))) {\n\n vga_draw_line(s, d, s->vram_ptr + addr, width);\n\n if (s->cursor_draw_line)\n\n s->cursor_draw_line(s, d, y);\n\n }\n\n } else {\n\n if (y_start >= 0) {\n\n /* flush to display */\n\n dpy_update(s->ds, 0, y_start,\n\n disp_width, y - y_start);\n\n y_start = -1;\n\n }\n\n }\n\n if (!multi_run) {\n\n mask = (s->cr[0x17] & 3) ^ 3;\n\n if ((y1 & mask) == mask)\n\n addr1 += line_offset;\n\n y1++;\n\n multi_run = multi_scan;\n\n } else {\n\n multi_run--;\n\n }\n\n /* line compare acts on the displayed lines */\n\n if (y == s->line_compare)\n\n addr1 = 0;\n\n d += linesize;\n\n }\n\n if (y_start >= 0) {\n\n /* flush to display */\n\n dpy_update(s->ds, 0, y_start,\n\n disp_width, y - y_start);\n\n }\n\n /* reset modified pages */\n\n if (page_max != -1) {\n\n cpu_physical_memory_reset_dirty(page_min, page_max + TARGET_PAGE_SIZE,\n\n VGA_DIRTY_FLAG);\n\n }\n\n memset(s->invalidated_y_table, 0, ((height + 31) >> 5) * 4);\n\n}\n", + "output": "0", + "index": 26949 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int rtl8139_cplus_transmit_one(RTL8139State *s)\n\n{\n\n if (!rtl8139_transmitter_enabled(s))\n\n {\n\n DPRINTF(\"+++ C+ mode: transmitter disabled\\n\");\n\n return 0;\n\n }\n\n\n\n if (!rtl8139_cp_transmitter_enabled(s))\n\n {\n\n DPRINTF(\"+++ C+ mode: C+ transmitter disabled\\n\");\n\n return 0 ;\n\n }\n\n\n\n int descriptor = s->currCPlusTxDesc;\n\n\n\n dma_addr_t cplus_tx_ring_desc = rtl8139_addr64(s->TxAddr[0], s->TxAddr[1]);\n\n\n\n /* Normal priority ring */\n\n cplus_tx_ring_desc += 16 * descriptor;\n\n\n\n DPRINTF(\"+++ C+ mode reading TX descriptor %d from host memory at \"\n\n \"%08x %08x = 0x\"DMA_ADDR_FMT\"\\n\", descriptor, s->TxAddr[1],\n\n s->TxAddr[0], cplus_tx_ring_desc);\n\n\n\n uint32_t val, txdw0,txdw1,txbufLO,txbufHI;\n\n\n\n pci_dma_read(&s->dev, cplus_tx_ring_desc, (uint8_t *)&val, 4);\n\n txdw0 = le32_to_cpu(val);\n\n pci_dma_read(&s->dev, cplus_tx_ring_desc+4, (uint8_t *)&val, 4);\n\n txdw1 = le32_to_cpu(val);\n\n pci_dma_read(&s->dev, cplus_tx_ring_desc+8, (uint8_t *)&val, 4);\n\n txbufLO = le32_to_cpu(val);\n\n pci_dma_read(&s->dev, cplus_tx_ring_desc+12, (uint8_t *)&val, 4);\n\n txbufHI = le32_to_cpu(val);\n\n\n\n DPRINTF(\"+++ C+ mode TX descriptor %d %08x %08x %08x %08x\\n\", descriptor,\n\n txdw0, txdw1, txbufLO, txbufHI);\n\n\n\n/* w0 ownership flag */\n\n#define CP_TX_OWN (1<<31)\n\n/* w0 end of ring flag */\n\n#define CP_TX_EOR (1<<30)\n\n/* first segment of received packet flag */\n\n#define CP_TX_FS (1<<29)\n\n/* last segment of received packet flag */\n\n#define CP_TX_LS (1<<28)\n\n/* large send packet flag */\n\n#define CP_TX_LGSEN (1<<27)\n\n/* large send MSS mask, bits 16...25 */\n\n#define CP_TC_LGSEN_MSS_MASK ((1 << 12) - 1)\n\n\n\n/* IP checksum offload flag */\n\n#define CP_TX_IPCS (1<<18)\n\n/* UDP checksum offload flag */\n\n#define CP_TX_UDPCS (1<<17)\n\n/* TCP checksum offload flag */\n\n#define CP_TX_TCPCS (1<<16)\n\n\n\n/* w0 bits 0...15 : buffer size */\n\n#define CP_TX_BUFFER_SIZE (1<<16)\n\n#define CP_TX_BUFFER_SIZE_MASK (CP_TX_BUFFER_SIZE - 1)\n\n/* w1 add tag flag */\n\n#define CP_TX_TAGC (1<<17)\n\n/* w1 bits 0...15 : VLAN tag (big endian) */\n\n#define CP_TX_VLAN_TAG_MASK ((1<<16) - 1)\n\n/* w2 low 32bit of Rx buffer ptr */\n\n/* w3 high 32bit of Rx buffer ptr */\n\n\n\n/* set after transmission */\n\n/* FIFO underrun flag */\n\n#define CP_TX_STATUS_UNF (1<<25)\n\n/* transmit error summary flag, valid if set any of three below */\n\n#define CP_TX_STATUS_TES (1<<23)\n\n/* out-of-window collision flag */\n\n#define CP_TX_STATUS_OWC (1<<22)\n\n/* link failure flag */\n\n#define CP_TX_STATUS_LNKF (1<<21)\n\n/* excessive collisions flag */\n\n#define CP_TX_STATUS_EXC (1<<20)\n\n\n\n if (!(txdw0 & CP_TX_OWN))\n\n {\n\n DPRINTF(\"C+ Tx mode : descriptor %d is owned by host\\n\", descriptor);\n\n return 0 ;\n\n }\n\n\n\n DPRINTF(\"+++ C+ Tx mode : transmitting from descriptor %d\\n\", descriptor);\n\n\n\n if (txdw0 & CP_TX_FS)\n\n {\n\n DPRINTF(\"+++ C+ Tx mode : descriptor %d is first segment \"\n\n \"descriptor\\n\", descriptor);\n\n\n\n /* reset internal buffer offset */\n\n s->cplus_txbuffer_offset = 0;\n\n }\n\n\n\n int txsize = txdw0 & CP_TX_BUFFER_SIZE_MASK;\n\n dma_addr_t tx_addr = rtl8139_addr64(txbufLO, txbufHI);\n\n\n\n /* make sure we have enough space to assemble the packet */\n\n if (!s->cplus_txbuffer)\n\n {\n\n s->cplus_txbuffer_len = CP_TX_BUFFER_SIZE;\n\n s->cplus_txbuffer = g_malloc(s->cplus_txbuffer_len);\n\n s->cplus_txbuffer_offset = 0;\n\n\n\n DPRINTF(\"+++ C+ mode transmission buffer allocated space %d\\n\",\n\n s->cplus_txbuffer_len);\n\n }\n\n\n\n while (s->cplus_txbuffer && s->cplus_txbuffer_offset + txsize >= s->cplus_txbuffer_len)\n\n {\n\n s->cplus_txbuffer_len += CP_TX_BUFFER_SIZE;\n\n s->cplus_txbuffer = g_realloc(s->cplus_txbuffer, s->cplus_txbuffer_len);\n\n\n\n DPRINTF(\"+++ C+ mode transmission buffer space changed to %d\\n\",\n\n s->cplus_txbuffer_len);\n\n }\n\n\n\n if (!s->cplus_txbuffer)\n\n {\n\n /* out of memory */\n\n\n\n DPRINTF(\"+++ C+ mode transmiter failed to reallocate %d bytes\\n\",\n\n s->cplus_txbuffer_len);\n\n\n\n /* update tally counter */\n\n ++s->tally_counters.TxERR;\n\n ++s->tally_counters.TxAbt;\n\n\n\n return 0;\n\n }\n\n\n\n /* append more data to the packet */\n\n\n\n DPRINTF(\"+++ C+ mode transmit reading %d bytes from host memory at \"\n\n DMA_ADDR_FMT\" to offset %d\\n\", txsize, tx_addr,\n\n s->cplus_txbuffer_offset);\n\n\n\n pci_dma_read(&s->dev, tx_addr,\n\n s->cplus_txbuffer + s->cplus_txbuffer_offset, txsize);\n\n s->cplus_txbuffer_offset += txsize;\n\n\n\n /* seek to next Rx descriptor */\n\n if (txdw0 & CP_TX_EOR)\n\n {\n\n s->currCPlusTxDesc = 0;\n\n }\n\n else\n\n {\n\n ++s->currCPlusTxDesc;\n\n if (s->currCPlusTxDesc >= 64)\n\n s->currCPlusTxDesc = 0;\n\n }\n\n\n\n /* transfer ownership to target */\n\n txdw0 &= ~CP_RX_OWN;\n\n\n\n /* reset error indicator bits */\n\n txdw0 &= ~CP_TX_STATUS_UNF;\n\n txdw0 &= ~CP_TX_STATUS_TES;\n\n txdw0 &= ~CP_TX_STATUS_OWC;\n\n txdw0 &= ~CP_TX_STATUS_LNKF;\n\n txdw0 &= ~CP_TX_STATUS_EXC;\n\n\n\n /* update ring data */\n\n val = cpu_to_le32(txdw0);\n\n pci_dma_write(&s->dev, cplus_tx_ring_desc, (uint8_t *)&val, 4);\n\n\n\n /* Now decide if descriptor being processed is holding the last segment of packet */\n\n if (txdw0 & CP_TX_LS)\n\n {\n\n uint8_t dot1q_buffer_space[VLAN_HLEN];\n\n uint16_t *dot1q_buffer;\n\n\n\n DPRINTF(\"+++ C+ Tx mode : descriptor %d is last segment descriptor\\n\",\n\n descriptor);\n\n\n\n /* can transfer fully assembled packet */\n\n\n\n uint8_t *saved_buffer = s->cplus_txbuffer;\n\n int saved_size = s->cplus_txbuffer_offset;\n\n int saved_buffer_len = s->cplus_txbuffer_len;\n\n\n\n /* create vlan tag */\n\n if (txdw1 & CP_TX_TAGC) {\n\n /* the vlan tag is in BE byte order in the descriptor\n\n * BE + le_to_cpu() + ~swap()~ = cpu */\n\n DPRINTF(\"+++ C+ Tx mode : inserting vlan tag with \"\"tci: %u\\n\",\n\n bswap16(txdw1 & CP_TX_VLAN_TAG_MASK));\n\n\n\n dot1q_buffer = (uint16_t *) dot1q_buffer_space;\n\n dot1q_buffer[0] = cpu_to_be16(ETH_P_8021Q);\n\n /* BE + le_to_cpu() + ~cpu_to_le()~ = BE */\n\n dot1q_buffer[1] = cpu_to_le16(txdw1 & CP_TX_VLAN_TAG_MASK);\n\n } else {\n\n dot1q_buffer = NULL;\n\n }\n\n\n\n /* reset the card space to protect from recursive call */\n\n s->cplus_txbuffer = NULL;\n\n s->cplus_txbuffer_offset = 0;\n\n s->cplus_txbuffer_len = 0;\n\n\n\n if (txdw0 & (CP_TX_IPCS | CP_TX_UDPCS | CP_TX_TCPCS | CP_TX_LGSEN))\n\n {\n\n DPRINTF(\"+++ C+ mode offloaded task checksum\\n\");\n\n\n\n /* ip packet header */\n\n ip_header *ip = NULL;\n\n int hlen = 0;\n\n uint8_t ip_protocol = 0;\n\n uint16_t ip_data_len = 0;\n\n\n\n uint8_t *eth_payload_data = NULL;\n\n size_t eth_payload_len = 0;\n\n\n\n int proto = be16_to_cpu(*(uint16_t *)(saved_buffer + 12));\n\n if (proto == ETH_P_IP)\n\n {\n\n DPRINTF(\"+++ C+ mode has IP packet\\n\");\n\n\n\n /* not aligned */\n\n eth_payload_data = saved_buffer + ETH_HLEN;\n\n eth_payload_len = saved_size - ETH_HLEN;\n\n\n\n ip = (ip_header*)eth_payload_data;\n\n\n\n if (IP_HEADER_VERSION(ip) != IP_HEADER_VERSION_4) {\n\n DPRINTF(\"+++ C+ mode packet has bad IP version %d \"\n\n \"expected %d\\n\", IP_HEADER_VERSION(ip),\n\n IP_HEADER_VERSION_4);\n\n ip = NULL;\n\n } else {\n\n hlen = IP_HEADER_LENGTH(ip);\n\n ip_protocol = ip->ip_p;\n\n ip_data_len = be16_to_cpu(ip->ip_len) - hlen;\n\n }\n\n }\n\n\n\n if (ip)\n\n {\n\n if (txdw0 & CP_TX_IPCS)\n\n {\n\n DPRINTF(\"+++ C+ mode need IP checksum\\n\");\n\n\n\n if (hleneth_payload_len) {/* min header length */\n\n /* bad packet header len */\n\n /* or packet too short */\n\n }\n\n else\n\n {\n\n ip->ip_sum = 0;\n\n ip->ip_sum = ip_checksum(ip, hlen);\n\n DPRINTF(\"+++ C+ mode IP header len=%d checksum=%04x\\n\",\n\n hlen, ip->ip_sum);\n\n }\n\n }\n\n\n\n if ((txdw0 & CP_TX_LGSEN) && ip_protocol == IP_PROTO_TCP)\n\n {\n\n int large_send_mss = (txdw0 >> 16) & CP_TC_LGSEN_MSS_MASK;\n\n\n\n DPRINTF(\"+++ C+ mode offloaded task TSO MTU=%d IP data %d \"\n\n \"frame data %d specified MSS=%d\\n\", ETH_MTU,\n\n ip_data_len, saved_size - ETH_HLEN, large_send_mss);\n\n\n\n int tcp_send_offset = 0;\n\n int send_count = 0;\n\n\n\n /* maximum IP header length is 60 bytes */\n\n uint8_t saved_ip_header[60];\n\n\n\n /* save IP header template; data area is used in tcp checksum calculation */\n\n memcpy(saved_ip_header, eth_payload_data, hlen);\n\n\n\n /* a placeholder for checksum calculation routine in tcp case */\n\n uint8_t *data_to_checksum = eth_payload_data + hlen - 12;\n\n // size_t data_to_checksum_len = eth_payload_len - hlen + 12;\n\n\n\n /* pointer to TCP header */\n\n tcp_header *p_tcp_hdr = (tcp_header*)(eth_payload_data + hlen);\n\n\n\n int tcp_hlen = TCP_HEADER_DATA_OFFSET(p_tcp_hdr);\n\n\n\n /* ETH_MTU = ip header len + tcp header len + payload */\n\n int tcp_data_len = ip_data_len - tcp_hlen;\n\n int tcp_chunk_size = ETH_MTU - hlen - tcp_hlen;\n\n\n\n DPRINTF(\"+++ C+ mode TSO IP data len %d TCP hlen %d TCP \"\n\n \"data len %d TCP chunk size %d\\n\", ip_data_len,\n\n tcp_hlen, tcp_data_len, tcp_chunk_size);\n\n\n\n /* note the cycle below overwrites IP header data,\n\n but restores it from saved_ip_header before sending packet */\n\n\n\n int is_last_frame = 0;\n\n\n\n for (tcp_send_offset = 0; tcp_send_offset < tcp_data_len; tcp_send_offset += tcp_chunk_size)\n\n {\n\n uint16_t chunk_size = tcp_chunk_size;\n\n\n\n /* check if this is the last frame */\n\n if (tcp_send_offset + tcp_chunk_size >= tcp_data_len)\n\n {\n\n is_last_frame = 1;\n\n chunk_size = tcp_data_len - tcp_send_offset;\n\n }\n\n\n\n DPRINTF(\"+++ C+ mode TSO TCP seqno %08x\\n\",\n\n be32_to_cpu(p_tcp_hdr->th_seq));\n\n\n\n /* add 4 TCP pseudoheader fields */\n\n /* copy IP source and destination fields */\n\n memcpy(data_to_checksum, saved_ip_header + 12, 8);\n\n\n\n DPRINTF(\"+++ C+ mode TSO calculating TCP checksum for \"\n\n \"packet with %d bytes data\\n\", tcp_hlen +\n\n chunk_size);\n\n\n\n if (tcp_send_offset)\n\n {\n\n memcpy((uint8_t*)p_tcp_hdr + tcp_hlen, (uint8_t*)p_tcp_hdr + tcp_hlen + tcp_send_offset, chunk_size);\n\n }\n\n\n\n /* keep PUSH and FIN flags only for the last frame */\n\n if (!is_last_frame)\n\n {\n\n TCP_HEADER_CLEAR_FLAGS(p_tcp_hdr, TCP_FLAG_PUSH|TCP_FLAG_FIN);\n\n }\n\n\n\n /* recalculate TCP checksum */\n\n ip_pseudo_header *p_tcpip_hdr = (ip_pseudo_header *)data_to_checksum;\n\n p_tcpip_hdr->zeros = 0;\n\n p_tcpip_hdr->ip_proto = IP_PROTO_TCP;\n\n p_tcpip_hdr->ip_payload = cpu_to_be16(tcp_hlen + chunk_size);\n\n\n\n p_tcp_hdr->th_sum = 0;\n\n\n\n int tcp_checksum = ip_checksum(data_to_checksum, tcp_hlen + chunk_size + 12);\n\n DPRINTF(\"+++ C+ mode TSO TCP checksum %04x\\n\",\n\n tcp_checksum);\n\n\n\n p_tcp_hdr->th_sum = tcp_checksum;\n\n\n\n /* restore IP header */\n\n memcpy(eth_payload_data, saved_ip_header, hlen);\n\n\n\n /* set IP data length and recalculate IP checksum */\n\n ip->ip_len = cpu_to_be16(hlen + tcp_hlen + chunk_size);\n\n\n\n /* increment IP id for subsequent frames */\n\n ip->ip_id = cpu_to_be16(tcp_send_offset/tcp_chunk_size + be16_to_cpu(ip->ip_id));\n\n\n\n ip->ip_sum = 0;\n\n ip->ip_sum = ip_checksum(eth_payload_data, hlen);\n\n DPRINTF(\"+++ C+ mode TSO IP header len=%d \"\n\n \"checksum=%04x\\n\", hlen, ip->ip_sum);\n\n\n\n int tso_send_size = ETH_HLEN + hlen + tcp_hlen + chunk_size;\n\n DPRINTF(\"+++ C+ mode TSO transferring packet size \"\n\n \"%d\\n\", tso_send_size);\n\n rtl8139_transfer_frame(s, saved_buffer, tso_send_size,\n\n 0, (uint8_t *) dot1q_buffer);\n\n\n\n /* add transferred count to TCP sequence number */\n\n p_tcp_hdr->th_seq = cpu_to_be32(chunk_size + be32_to_cpu(p_tcp_hdr->th_seq));\n\n ++send_count;\n\n }\n\n\n\n /* Stop sending this frame */\n\n saved_size = 0;\n\n }\n\n else if (txdw0 & (CP_TX_TCPCS|CP_TX_UDPCS))\n\n {\n\n DPRINTF(\"+++ C+ mode need TCP or UDP checksum\\n\");\n\n\n\n /* maximum IP header length is 60 bytes */\n\n uint8_t saved_ip_header[60];\n\n memcpy(saved_ip_header, eth_payload_data, hlen);\n\n\n\n uint8_t *data_to_checksum = eth_payload_data + hlen - 12;\n\n // size_t data_to_checksum_len = eth_payload_len - hlen + 12;\n\n\n\n /* add 4 TCP pseudoheader fields */\n\n /* copy IP source and destination fields */\n\n memcpy(data_to_checksum, saved_ip_header + 12, 8);\n\n\n\n if ((txdw0 & CP_TX_TCPCS) && ip_protocol == IP_PROTO_TCP)\n\n {\n\n DPRINTF(\"+++ C+ mode calculating TCP checksum for \"\n\n \"packet with %d bytes data\\n\", ip_data_len);\n\n\n\n ip_pseudo_header *p_tcpip_hdr = (ip_pseudo_header *)data_to_checksum;\n\n p_tcpip_hdr->zeros = 0;\n\n p_tcpip_hdr->ip_proto = IP_PROTO_TCP;\n\n p_tcpip_hdr->ip_payload = cpu_to_be16(ip_data_len);\n\n\n\n tcp_header* p_tcp_hdr = (tcp_header *) (data_to_checksum+12);\n\n\n\n p_tcp_hdr->th_sum = 0;\n\n\n\n int tcp_checksum = ip_checksum(data_to_checksum, ip_data_len + 12);\n\n DPRINTF(\"+++ C+ mode TCP checksum %04x\\n\",\n\n tcp_checksum);\n\n\n\n p_tcp_hdr->th_sum = tcp_checksum;\n\n }\n\n else if ((txdw0 & CP_TX_UDPCS) && ip_protocol == IP_PROTO_UDP)\n\n {\n\n DPRINTF(\"+++ C+ mode calculating UDP checksum for \"\n\n \"packet with %d bytes data\\n\", ip_data_len);\n\n\n\n ip_pseudo_header *p_udpip_hdr = (ip_pseudo_header *)data_to_checksum;\n\n p_udpip_hdr->zeros = 0;\n\n p_udpip_hdr->ip_proto = IP_PROTO_UDP;\n\n p_udpip_hdr->ip_payload = cpu_to_be16(ip_data_len);\n\n\n\n udp_header *p_udp_hdr = (udp_header *) (data_to_checksum+12);\n\n\n\n p_udp_hdr->uh_sum = 0;\n\n\n\n int udp_checksum = ip_checksum(data_to_checksum, ip_data_len + 12);\n\n DPRINTF(\"+++ C+ mode UDP checksum %04x\\n\",\n\n udp_checksum);\n\n\n\n p_udp_hdr->uh_sum = udp_checksum;\n\n }\n\n\n\n /* restore IP header */\n\n memcpy(eth_payload_data, saved_ip_header, hlen);\n\n }\n\n }\n\n }\n\n\n\n /* update tally counter */\n\n ++s->tally_counters.TxOk;\n\n\n\n DPRINTF(\"+++ C+ mode transmitting %d bytes packet\\n\", saved_size);\n\n\n\n rtl8139_transfer_frame(s, saved_buffer, saved_size, 1,\n\n (uint8_t *) dot1q_buffer);\n\n\n\n /* restore card space if there was no recursion and reset offset */\n\n if (!s->cplus_txbuffer)\n\n {\n\n s->cplus_txbuffer = saved_buffer;\n\n s->cplus_txbuffer_len = saved_buffer_len;\n\n s->cplus_txbuffer_offset = 0;\n\n }\n\n else\n\n {\n\n g_free(saved_buffer);\n\n }\n\n }\n\n else\n\n {\n\n DPRINTF(\"+++ C+ mode transmission continue to next descriptor\\n\");\n\n }\n\n\n\n return 1;\n\n}\n", + "output": "1", + "index": 6317 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int vqf_read_header(AVFormatContext *s)\n\n{\n\n VqfContext *c = s->priv_data;\n\n AVStream *st = avformat_new_stream(s, NULL);\n\n int chunk_tag;\n\n int rate_flag = -1;\n\n int header_size;\n\n int read_bitrate = 0;\n\n int size;\n\n uint8_t comm_chunk[12];\n\n\n\n if (!st)\n\n return AVERROR(ENOMEM);\n\n\n\n avio_skip(s->pb, 12);\n\n\n\n header_size = avio_rb32(s->pb);\n\n\n\n st->codec->codec_type = AVMEDIA_TYPE_AUDIO;\n\n st->codec->codec_id = AV_CODEC_ID_TWINVQ;\n\n st->start_time = 0;\n\n\n\n do {\n\n int len;\n\n chunk_tag = avio_rl32(s->pb);\n\n\n\n if (chunk_tag == MKTAG('D','A','T','A'))\n\n break;\n\n\n\n len = avio_rb32(s->pb);\n\n\n\n if ((unsigned) len > INT_MAX/2) {\n\n av_log(s, AV_LOG_ERROR, \"Malformed header\\n\");\n\n\n\n\n\n header_size -= 8;\n\n\n\n switch(chunk_tag){\n\n case MKTAG('C','O','M','M'):\n\n avio_read(s->pb, comm_chunk, 12);\n\n st->codec->channels = AV_RB32(comm_chunk ) + 1;\n\n read_bitrate = AV_RB32(comm_chunk + 4);\n\n rate_flag = AV_RB32(comm_chunk + 8);\n\n avio_skip(s->pb, len-12);\n\n\n\n st->codec->bit_rate = read_bitrate*1000;\n\n break;\n\n case MKTAG('D','S','I','Z'): // size of compressed data\n\n {\n\n char buf[8] = {0};\n\n int size = avio_rb32(s->pb);\n\n\n\n snprintf(buf, sizeof(buf), \"%d\", size);\n\n av_dict_set(&s->metadata, \"size\", buf, 0);\n\n\n break;\n\n case MKTAG('Y','E','A','R'): // recording date\n\n case MKTAG('E','N','C','D'): // compression date\n\n case MKTAG('E','X','T','R'): // reserved\n\n case MKTAG('_','Y','M','H'): // reserved\n\n case MKTAG('_','N','T','T'): // reserved\n\n case MKTAG('_','I','D','3'): // reserved for ID3 tags\n\n avio_skip(s->pb, FFMIN(len, header_size));\n\n break;\n\n default:\n\n add_metadata(s, chunk_tag, len, header_size);\n\n break;\n\n\n\n\n header_size -= len;\n\n\n\n } while (header_size >= 0);\n\n\n\n switch (rate_flag) {\n\n case -1:\n\n av_log(s, AV_LOG_ERROR, \"COMM tag not found!\\n\");\n\n\n case 44:\n\n st->codec->sample_rate = 44100;\n\n break;\n\n case 22:\n\n st->codec->sample_rate = 22050;\n\n break;\n\n case 11:\n\n st->codec->sample_rate = 11025;\n\n break;\n\n default:\n\n st->codec->sample_rate = rate_flag*1000;\n\n\n\n\n\n break;\n\n\n\n\n switch (((st->codec->sample_rate/1000) << 8) +\n\n read_bitrate/st->codec->channels) {\n\n case (11<<8) + 8 :\n\n case (8 <<8) + 8 :\n\n case (11<<8) + 10:\n\n case (22<<8) + 32:\n\n size = 512;\n\n break;\n\n case (16<<8) + 16:\n\n case (22<<8) + 20:\n\n case (22<<8) + 24:\n\n size = 1024;\n\n break;\n\n case (44<<8) + 40:\n\n case (44<<8) + 48:\n\n size = 2048;\n\n break;\n\n default:\n\n av_log(s, AV_LOG_ERROR, \"Mode not suported: %d Hz, %d kb/s.\\n\",\n\n st->codec->sample_rate, st->codec->bit_rate);\n\n\n\n c->frame_bit_len = st->codec->bit_rate*size/st->codec->sample_rate;\n\n avpriv_set_pts_info(st, 64, size, st->codec->sample_rate);\n\n\n\n /* put first 12 bytes of COMM chunk in extradata */\n\n if (!(st->codec->extradata = av_malloc(12 + FF_INPUT_BUFFER_PADDING_SIZE)))\n\n return AVERROR(ENOMEM);\n\n st->codec->extradata_size = 12;\n\n memcpy(st->codec->extradata, comm_chunk, 12);\n\n\n\n ff_metadata_conv_ctx(s, NULL, vqf_metadata_conv);\n\n\n\n return 0;\n", + "output": "1", + "index": 5515 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void gen_farith (DisasContext *ctx, uint32_t op1,\n\n int ft, int fs, int fd, int cc)\n\n{\n\n const char *opn = \"farith\";\n\n const char *condnames[] = {\n\n \"c.f\",\n\n \"c.un\",\n\n \"c.eq\",\n\n \"c.ueq\",\n\n \"c.olt\",\n\n \"c.ult\",\n\n \"c.ole\",\n\n \"c.ule\",\n\n \"c.sf\",\n\n \"c.ngle\",\n\n \"c.seq\",\n\n \"c.ngl\",\n\n \"c.lt\",\n\n \"c.nge\",\n\n \"c.le\",\n\n \"c.ngt\",\n\n };\n\n const char *condnames_abs[] = {\n\n \"cabs.f\",\n\n \"cabs.un\",\n\n \"cabs.eq\",\n\n \"cabs.ueq\",\n\n \"cabs.olt\",\n\n \"cabs.ult\",\n\n \"cabs.ole\",\n\n \"cabs.ule\",\n\n \"cabs.sf\",\n\n \"cabs.ngle\",\n\n \"cabs.seq\",\n\n \"cabs.ngl\",\n\n \"cabs.lt\",\n\n \"cabs.nge\",\n\n \"cabs.le\",\n\n \"cabs.ngt\",\n\n };\n\n enum { BINOP, CMPOP, OTHEROP } optype = OTHEROP;\n\n uint32_t func = ctx->opcode & 0x3f;\n\n\n\n switch (ctx->opcode & FOP(0x3f, 0x1f)) {\n\n case FOP(0, 16):\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n TCGv_i32 fp1 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32(fp0, fs);\n\n gen_load_fpr32(fp1, ft);\n\n gen_helper_float_add_s(fp0, fp0, fp1);\n\n tcg_temp_free_i32(fp1);\n\n gen_store_fpr32(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n }\n\n opn = \"add.s\";\n\n optype = BINOP;\n\n break;\n\n case FOP(1, 16):\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n TCGv_i32 fp1 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32(fp0, fs);\n\n gen_load_fpr32(fp1, ft);\n\n gen_helper_float_sub_s(fp0, fp0, fp1);\n\n tcg_temp_free_i32(fp1);\n\n gen_store_fpr32(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n }\n\n opn = \"sub.s\";\n\n optype = BINOP;\n\n break;\n\n case FOP(2, 16):\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n TCGv_i32 fp1 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32(fp0, fs);\n\n gen_load_fpr32(fp1, ft);\n\n gen_helper_float_mul_s(fp0, fp0, fp1);\n\n tcg_temp_free_i32(fp1);\n\n gen_store_fpr32(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n }\n\n opn = \"mul.s\";\n\n optype = BINOP;\n\n break;\n\n case FOP(3, 16):\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n TCGv_i32 fp1 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32(fp0, fs);\n\n gen_load_fpr32(fp1, ft);\n\n gen_helper_float_div_s(fp0, fp0, fp1);\n\n tcg_temp_free_i32(fp1);\n\n gen_store_fpr32(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n }\n\n opn = \"div.s\";\n\n optype = BINOP;\n\n break;\n\n case FOP(4, 16):\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32(fp0, fs);\n\n gen_helper_float_sqrt_s(fp0, fp0);\n\n gen_store_fpr32(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n }\n\n opn = \"sqrt.s\";\n\n break;\n\n case FOP(5, 16):\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32(fp0, fs);\n\n gen_helper_float_abs_s(fp0, fp0);\n\n gen_store_fpr32(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n }\n\n opn = \"abs.s\";\n\n break;\n\n case FOP(6, 16):\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32(fp0, fs);\n\n gen_store_fpr32(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n }\n\n opn = \"mov.s\";\n\n break;\n\n case FOP(7, 16):\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32(fp0, fs);\n\n gen_helper_float_chs_s(fp0, fp0);\n\n gen_store_fpr32(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n }\n\n opn = \"neg.s\";\n\n break;\n\n case FOP(8, 16):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i32 fp32 = tcg_temp_new_i32();\n\n TCGv_i64 fp64 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr32(fp32, fs);\n\n gen_helper_float_roundl_s(fp64, fp32);\n\n tcg_temp_free_i32(fp32);\n\n gen_store_fpr64(ctx, fp64, fd);\n\n tcg_temp_free_i64(fp64);\n\n }\n\n opn = \"round.l.s\";\n\n break;\n\n case FOP(9, 16):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i32 fp32 = tcg_temp_new_i32();\n\n TCGv_i64 fp64 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr32(fp32, fs);\n\n gen_helper_float_truncl_s(fp64, fp32);\n\n tcg_temp_free_i32(fp32);\n\n gen_store_fpr64(ctx, fp64, fd);\n\n tcg_temp_free_i64(fp64);\n\n }\n\n opn = \"trunc.l.s\";\n\n break;\n\n case FOP(10, 16):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i32 fp32 = tcg_temp_new_i32();\n\n TCGv_i64 fp64 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr32(fp32, fs);\n\n gen_helper_float_ceill_s(fp64, fp32);\n\n tcg_temp_free_i32(fp32);\n\n gen_store_fpr64(ctx, fp64, fd);\n\n tcg_temp_free_i64(fp64);\n\n }\n\n opn = \"ceil.l.s\";\n\n break;\n\n case FOP(11, 16):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i32 fp32 = tcg_temp_new_i32();\n\n TCGv_i64 fp64 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr32(fp32, fs);\n\n gen_helper_float_floorl_s(fp64, fp32);\n\n tcg_temp_free_i32(fp32);\n\n gen_store_fpr64(ctx, fp64, fd);\n\n tcg_temp_free_i64(fp64);\n\n }\n\n opn = \"floor.l.s\";\n\n break;\n\n case FOP(12, 16):\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32(fp0, fs);\n\n gen_helper_float_roundw_s(fp0, fp0);\n\n gen_store_fpr32(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n }\n\n opn = \"round.w.s\";\n\n break;\n\n case FOP(13, 16):\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32(fp0, fs);\n\n gen_helper_float_truncw_s(fp0, fp0);\n\n gen_store_fpr32(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n }\n\n opn = \"trunc.w.s\";\n\n break;\n\n case FOP(14, 16):\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32(fp0, fs);\n\n gen_helper_float_ceilw_s(fp0, fp0);\n\n gen_store_fpr32(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n }\n\n opn = \"ceil.w.s\";\n\n break;\n\n case FOP(15, 16):\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32(fp0, fs);\n\n gen_helper_float_floorw_s(fp0, fp0);\n\n gen_store_fpr32(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n }\n\n opn = \"floor.w.s\";\n\n break;\n\n case FOP(17, 16):\n\n gen_movcf_s(fs, fd, (ft >> 2) & 0x7, ft & 0x1);\n\n opn = \"movcf.s\";\n\n break;\n\n case FOP(18, 16):\n\n {\n\n int l1 = gen_new_label();\n\n TCGv_i32 fp0;\n\n\n\n if (ft != 0) {\n\n tcg_gen_brcondi_tl(TCG_COND_NE, cpu_gpr[ft], 0, l1);\n\n }\n\n fp0 = tcg_temp_new_i32();\n\n gen_load_fpr32(fp0, fs);\n\n gen_store_fpr32(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n gen_set_label(l1);\n\n }\n\n opn = \"movz.s\";\n\n break;\n\n case FOP(19, 16):\n\n {\n\n int l1 = gen_new_label();\n\n TCGv_i32 fp0;\n\n\n\n if (ft != 0) {\n\n tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_gpr[ft], 0, l1);\n\n fp0 = tcg_temp_new_i32();\n\n gen_load_fpr32(fp0, fs);\n\n gen_store_fpr32(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n gen_set_label(l1);\n\n }\n\n }\n\n opn = \"movn.s\";\n\n break;\n\n case FOP(21, 16):\n\n check_cop1x(ctx);\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32(fp0, fs);\n\n gen_helper_float_recip_s(fp0, fp0);\n\n gen_store_fpr32(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n }\n\n opn = \"recip.s\";\n\n break;\n\n case FOP(22, 16):\n\n check_cop1x(ctx);\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32(fp0, fs);\n\n gen_helper_float_rsqrt_s(fp0, fp0);\n\n gen_store_fpr32(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n }\n\n opn = \"rsqrt.s\";\n\n break;\n\n case FOP(28, 16):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n TCGv_i32 fp1 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32(fp0, fs);\n\n gen_load_fpr32(fp1, fd);\n\n gen_helper_float_recip2_s(fp0, fp0, fp1);\n\n tcg_temp_free_i32(fp1);\n\n gen_store_fpr32(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n }\n\n opn = \"recip2.s\";\n\n break;\n\n case FOP(29, 16):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32(fp0, fs);\n\n gen_helper_float_recip1_s(fp0, fp0);\n\n gen_store_fpr32(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n }\n\n opn = \"recip1.s\";\n\n break;\n\n case FOP(30, 16):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32(fp0, fs);\n\n gen_helper_float_rsqrt1_s(fp0, fp0);\n\n gen_store_fpr32(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n }\n\n opn = \"rsqrt1.s\";\n\n break;\n\n case FOP(31, 16):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n TCGv_i32 fp1 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32(fp0, fs);\n\n gen_load_fpr32(fp1, ft);\n\n gen_helper_float_rsqrt2_s(fp0, fp0, fp1);\n\n tcg_temp_free_i32(fp1);\n\n gen_store_fpr32(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n }\n\n opn = \"rsqrt2.s\";\n\n break;\n\n case FOP(33, 16):\n\n check_cp1_registers(ctx, fd);\n\n {\n\n TCGv_i32 fp32 = tcg_temp_new_i32();\n\n TCGv_i64 fp64 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr32(fp32, fs);\n\n gen_helper_float_cvtd_s(fp64, fp32);\n\n tcg_temp_free_i32(fp32);\n\n gen_store_fpr64(ctx, fp64, fd);\n\n tcg_temp_free_i64(fp64);\n\n }\n\n opn = \"cvt.d.s\";\n\n break;\n\n case FOP(36, 16):\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32(fp0, fs);\n\n gen_helper_float_cvtw_s(fp0, fp0);\n\n gen_store_fpr32(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n }\n\n opn = \"cvt.w.s\";\n\n break;\n\n case FOP(37, 16):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i32 fp32 = tcg_temp_new_i32();\n\n TCGv_i64 fp64 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr32(fp32, fs);\n\n gen_helper_float_cvtl_s(fp64, fp32);\n\n tcg_temp_free_i32(fp32);\n\n gen_store_fpr64(ctx, fp64, fd);\n\n tcg_temp_free_i64(fp64);\n\n }\n\n opn = \"cvt.l.s\";\n\n break;\n\n case FOP(38, 16):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp64 = tcg_temp_new_i64();\n\n TCGv_i32 fp32_0 = tcg_temp_new_i32();\n\n TCGv_i32 fp32_1 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32(fp32_0, fs);\n\n gen_load_fpr32(fp32_1, ft);\n\n tcg_gen_concat_i32_i64(fp64, fp32_0, fp32_1);\n\n tcg_temp_free_i32(fp32_1);\n\n tcg_temp_free_i32(fp32_0);\n\n gen_store_fpr64(ctx, fp64, fd);\n\n tcg_temp_free_i64(fp64);\n\n }\n\n opn = \"cvt.ps.s\";\n\n break;\n\n case FOP(48, 16):\n\n case FOP(49, 16):\n\n case FOP(50, 16):\n\n case FOP(51, 16):\n\n case FOP(52, 16):\n\n case FOP(53, 16):\n\n case FOP(54, 16):\n\n case FOP(55, 16):\n\n case FOP(56, 16):\n\n case FOP(57, 16):\n\n case FOP(58, 16):\n\n case FOP(59, 16):\n\n case FOP(60, 16):\n\n case FOP(61, 16):\n\n case FOP(62, 16):\n\n case FOP(63, 16):\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n TCGv_i32 fp1 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32(fp0, fs);\n\n gen_load_fpr32(fp1, ft);\n\n if (ctx->opcode & (1 << 6)) {\n\n check_cop1x(ctx);\n\n gen_cmpabs_s(func-48, fp0, fp1, cc);\n\n opn = condnames_abs[func-48];\n\n } else {\n\n gen_cmp_s(func-48, fp0, fp1, cc);\n\n opn = condnames[func-48];\n\n }\n\n tcg_temp_free_i32(fp0);\n\n tcg_temp_free_i32(fp1);\n\n }\n\n break;\n\n case FOP(0, 17):\n\n check_cp1_registers(ctx, fs | ft | fd);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n TCGv_i64 fp1 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_load_fpr64(ctx, fp1, ft);\n\n gen_helper_float_add_d(fp0, fp0, fp1);\n\n tcg_temp_free_i64(fp1);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"add.d\";\n\n optype = BINOP;\n\n break;\n\n case FOP(1, 17):\n\n check_cp1_registers(ctx, fs | ft | fd);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n TCGv_i64 fp1 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_load_fpr64(ctx, fp1, ft);\n\n gen_helper_float_sub_d(fp0, fp0, fp1);\n\n tcg_temp_free_i64(fp1);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"sub.d\";\n\n optype = BINOP;\n\n break;\n\n case FOP(2, 17):\n\n check_cp1_registers(ctx, fs | ft | fd);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n TCGv_i64 fp1 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_load_fpr64(ctx, fp1, ft);\n\n gen_helper_float_mul_d(fp0, fp0, fp1);\n\n tcg_temp_free_i64(fp1);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"mul.d\";\n\n optype = BINOP;\n\n break;\n\n case FOP(3, 17):\n\n check_cp1_registers(ctx, fs | ft | fd);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n TCGv_i64 fp1 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_load_fpr64(ctx, fp1, ft);\n\n gen_helper_float_div_d(fp0, fp0, fp1);\n\n tcg_temp_free_i64(fp1);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"div.d\";\n\n optype = BINOP;\n\n break;\n\n case FOP(4, 17):\n\n check_cp1_registers(ctx, fs | fd);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_helper_float_sqrt_d(fp0, fp0);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"sqrt.d\";\n\n break;\n\n case FOP(5, 17):\n\n check_cp1_registers(ctx, fs | fd);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_helper_float_abs_d(fp0, fp0);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"abs.d\";\n\n break;\n\n case FOP(6, 17):\n\n check_cp1_registers(ctx, fs | fd);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"mov.d\";\n\n break;\n\n case FOP(7, 17):\n\n check_cp1_registers(ctx, fs | fd);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_helper_float_chs_d(fp0, fp0);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"neg.d\";\n\n break;\n\n case FOP(8, 17):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_helper_float_roundl_d(fp0, fp0);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"round.l.d\";\n\n break;\n\n case FOP(9, 17):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_helper_float_truncl_d(fp0, fp0);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"trunc.l.d\";\n\n break;\n\n case FOP(10, 17):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_helper_float_ceill_d(fp0, fp0);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"ceil.l.d\";\n\n break;\n\n case FOP(11, 17):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_helper_float_floorl_d(fp0, fp0);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"floor.l.d\";\n\n break;\n\n case FOP(12, 17):\n\n check_cp1_registers(ctx, fs);\n\n {\n\n TCGv_i32 fp32 = tcg_temp_new_i32();\n\n TCGv_i64 fp64 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp64, fs);\n\n gen_helper_float_roundw_d(fp32, fp64);\n\n tcg_temp_free_i64(fp64);\n\n gen_store_fpr32(fp32, fd);\n\n tcg_temp_free_i32(fp32);\n\n }\n\n opn = \"round.w.d\";\n\n break;\n\n case FOP(13, 17):\n\n check_cp1_registers(ctx, fs);\n\n {\n\n TCGv_i32 fp32 = tcg_temp_new_i32();\n\n TCGv_i64 fp64 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp64, fs);\n\n gen_helper_float_truncw_d(fp32, fp64);\n\n tcg_temp_free_i64(fp64);\n\n gen_store_fpr32(fp32, fd);\n\n tcg_temp_free_i32(fp32);\n\n }\n\n opn = \"trunc.w.d\";\n\n break;\n\n case FOP(14, 17):\n\n check_cp1_registers(ctx, fs);\n\n {\n\n TCGv_i32 fp32 = tcg_temp_new_i32();\n\n TCGv_i64 fp64 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp64, fs);\n\n gen_helper_float_ceilw_d(fp32, fp64);\n\n tcg_temp_free_i64(fp64);\n\n gen_store_fpr32(fp32, fd);\n\n tcg_temp_free_i32(fp32);\n\n }\n\n opn = \"ceil.w.d\";\n\n break;\n\n case FOP(15, 17):\n\n check_cp1_registers(ctx, fs);\n\n {\n\n TCGv_i32 fp32 = tcg_temp_new_i32();\n\n TCGv_i64 fp64 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp64, fs);\n\n gen_helper_float_floorw_d(fp32, fp64);\n\n tcg_temp_free_i64(fp64);\n\n gen_store_fpr32(fp32, fd);\n\n tcg_temp_free_i32(fp32);\n\n }\n\n opn = \"floor.w.d\";\n\n break;\n\n case FOP(17, 17):\n\n gen_movcf_d(ctx, fs, fd, (ft >> 2) & 0x7, ft & 0x1);\n\n opn = \"movcf.d\";\n\n break;\n\n case FOP(18, 17):\n\n {\n\n int l1 = gen_new_label();\n\n TCGv_i64 fp0;\n\n\n\n if (ft != 0) {\n\n tcg_gen_brcondi_tl(TCG_COND_NE, cpu_gpr[ft], 0, l1);\n\n }\n\n fp0 = tcg_temp_new_i64();\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n gen_set_label(l1);\n\n }\n\n opn = \"movz.d\";\n\n break;\n\n case FOP(19, 17):\n\n {\n\n int l1 = gen_new_label();\n\n TCGv_i64 fp0;\n\n\n\n if (ft != 0) {\n\n tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_gpr[ft], 0, l1);\n\n fp0 = tcg_temp_new_i64();\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n gen_set_label(l1);\n\n }\n\n }\n\n opn = \"movn.d\";\n\n break;\n\n case FOP(21, 17):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_helper_float_recip_d(fp0, fp0);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"recip.d\";\n\n break;\n\n case FOP(22, 17):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_helper_float_rsqrt_d(fp0, fp0);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"rsqrt.d\";\n\n break;\n\n case FOP(28, 17):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n TCGv_i64 fp1 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_load_fpr64(ctx, fp1, ft);\n\n gen_helper_float_recip2_d(fp0, fp0, fp1);\n\n tcg_temp_free_i64(fp1);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"recip2.d\";\n\n break;\n\n case FOP(29, 17):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_helper_float_recip1_d(fp0, fp0);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"recip1.d\";\n\n break;\n\n case FOP(30, 17):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_helper_float_rsqrt1_d(fp0, fp0);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"rsqrt1.d\";\n\n break;\n\n case FOP(31, 17):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n TCGv_i64 fp1 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_load_fpr64(ctx, fp1, ft);\n\n gen_helper_float_rsqrt2_d(fp0, fp0, fp1);\n\n tcg_temp_free_i64(fp1);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"rsqrt2.d\";\n\n break;\n\n case FOP(48, 17):\n\n case FOP(49, 17):\n\n case FOP(50, 17):\n\n case FOP(51, 17):\n\n case FOP(52, 17):\n\n case FOP(53, 17):\n\n case FOP(54, 17):\n\n case FOP(55, 17):\n\n case FOP(56, 17):\n\n case FOP(57, 17):\n\n case FOP(58, 17):\n\n case FOP(59, 17):\n\n case FOP(60, 17):\n\n case FOP(61, 17):\n\n case FOP(62, 17):\n\n case FOP(63, 17):\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n TCGv_i64 fp1 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_load_fpr64(ctx, fp1, ft);\n\n if (ctx->opcode & (1 << 6)) {\n\n check_cop1x(ctx);\n\n check_cp1_registers(ctx, fs | ft);\n\n gen_cmpabs_d(func-48, fp0, fp1, cc);\n\n opn = condnames_abs[func-48];\n\n } else {\n\n check_cp1_registers(ctx, fs | ft);\n\n gen_cmp_d(func-48, fp0, fp1, cc);\n\n opn = condnames[func-48];\n\n }\n\n tcg_temp_free_i64(fp0);\n\n tcg_temp_free_i64(fp1);\n\n }\n\n break;\n\n case FOP(32, 17):\n\n check_cp1_registers(ctx, fs);\n\n {\n\n TCGv_i32 fp32 = tcg_temp_new_i32();\n\n TCGv_i64 fp64 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp64, fs);\n\n gen_helper_float_cvts_d(fp32, fp64);\n\n tcg_temp_free_i64(fp64);\n\n gen_store_fpr32(fp32, fd);\n\n tcg_temp_free_i32(fp32);\n\n }\n\n opn = \"cvt.s.d\";\n\n break;\n\n case FOP(36, 17):\n\n check_cp1_registers(ctx, fs);\n\n {\n\n TCGv_i32 fp32 = tcg_temp_new_i32();\n\n TCGv_i64 fp64 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp64, fs);\n\n gen_helper_float_cvtw_d(fp32, fp64);\n\n tcg_temp_free_i64(fp64);\n\n gen_store_fpr32(fp32, fd);\n\n tcg_temp_free_i32(fp32);\n\n }\n\n opn = \"cvt.w.d\";\n\n break;\n\n case FOP(37, 17):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_helper_float_cvtl_d(fp0, fp0);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"cvt.l.d\";\n\n break;\n\n case FOP(32, 20):\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32(fp0, fs);\n\n gen_helper_float_cvts_w(fp0, fp0);\n\n gen_store_fpr32(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n }\n\n opn = \"cvt.s.w\";\n\n break;\n\n case FOP(33, 20):\n\n check_cp1_registers(ctx, fd);\n\n {\n\n TCGv_i32 fp32 = tcg_temp_new_i32();\n\n TCGv_i64 fp64 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr32(fp32, fs);\n\n gen_helper_float_cvtd_w(fp64, fp32);\n\n tcg_temp_free_i32(fp32);\n\n gen_store_fpr64(ctx, fp64, fd);\n\n tcg_temp_free_i64(fp64);\n\n }\n\n opn = \"cvt.d.w\";\n\n break;\n\n case FOP(32, 21):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i32 fp32 = tcg_temp_new_i32();\n\n TCGv_i64 fp64 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp64, fs);\n\n gen_helper_float_cvts_l(fp32, fp64);\n\n tcg_temp_free_i64(fp64);\n\n gen_store_fpr32(fp32, fd);\n\n tcg_temp_free_i32(fp32);\n\n }\n\n opn = \"cvt.s.l\";\n\n break;\n\n case FOP(33, 21):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_helper_float_cvtd_l(fp0, fp0);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"cvt.d.l\";\n\n break;\n\n case FOP(38, 20):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_helper_float_cvtps_pw(fp0, fp0);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"cvt.ps.pw\";\n\n break;\n\n case FOP(0, 22):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n TCGv_i64 fp1 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_load_fpr64(ctx, fp1, ft);\n\n gen_helper_float_add_ps(fp0, fp0, fp1);\n\n tcg_temp_free_i64(fp1);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"add.ps\";\n\n break;\n\n case FOP(1, 22):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n TCGv_i64 fp1 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_load_fpr64(ctx, fp1, ft);\n\n gen_helper_float_sub_ps(fp0, fp0, fp1);\n\n tcg_temp_free_i64(fp1);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"sub.ps\";\n\n break;\n\n case FOP(2, 22):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n TCGv_i64 fp1 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_load_fpr64(ctx, fp1, ft);\n\n gen_helper_float_mul_ps(fp0, fp0, fp1);\n\n tcg_temp_free_i64(fp1);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"mul.ps\";\n\n break;\n\n case FOP(5, 22):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_helper_float_abs_ps(fp0, fp0);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"abs.ps\";\n\n break;\n\n case FOP(6, 22):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"mov.ps\";\n\n break;\n\n case FOP(7, 22):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_helper_float_chs_ps(fp0, fp0);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"neg.ps\";\n\n break;\n\n case FOP(17, 22):\n\n check_cp1_64bitmode(ctx);\n\n gen_movcf_ps(fs, fd, (ft >> 2) & 0x7, ft & 0x1);\n\n opn = \"movcf.ps\";\n\n break;\n\n case FOP(18, 22):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n int l1 = gen_new_label();\n\n TCGv_i64 fp0;\n\n\n\n if (ft != 0)\n\n tcg_gen_brcondi_tl(TCG_COND_NE, cpu_gpr[ft], 0, l1);\n\n fp0 = tcg_temp_new_i64();\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n gen_set_label(l1);\n\n }\n\n opn = \"movz.ps\";\n\n break;\n\n case FOP(19, 22):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n int l1 = gen_new_label();\n\n TCGv_i64 fp0;\n\n\n\n if (ft != 0) {\n\n tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_gpr[ft], 0, l1);\n\n fp0 = tcg_temp_new_i64();\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n gen_set_label(l1);\n\n }\n\n }\n\n opn = \"movn.ps\";\n\n break;\n\n case FOP(24, 22):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n TCGv_i64 fp1 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, ft);\n\n gen_load_fpr64(ctx, fp1, fs);\n\n gen_helper_float_addr_ps(fp0, fp0, fp1);\n\n tcg_temp_free_i64(fp1);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"addr.ps\";\n\n break;\n\n case FOP(26, 22):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n TCGv_i64 fp1 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, ft);\n\n gen_load_fpr64(ctx, fp1, fs);\n\n gen_helper_float_mulr_ps(fp0, fp0, fp1);\n\n tcg_temp_free_i64(fp1);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"mulr.ps\";\n\n break;\n\n case FOP(28, 22):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n TCGv_i64 fp1 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_load_fpr64(ctx, fp1, fd);\n\n gen_helper_float_recip2_ps(fp0, fp0, fp1);\n\n tcg_temp_free_i64(fp1);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"recip2.ps\";\n\n break;\n\n case FOP(29, 22):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_helper_float_recip1_ps(fp0, fp0);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"recip1.ps\";\n\n break;\n\n case FOP(30, 22):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_helper_float_rsqrt1_ps(fp0, fp0);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"rsqrt1.ps\";\n\n break;\n\n case FOP(31, 22):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n TCGv_i64 fp1 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_load_fpr64(ctx, fp1, ft);\n\n gen_helper_float_rsqrt2_ps(fp0, fp0, fp1);\n\n tcg_temp_free_i64(fp1);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"rsqrt2.ps\";\n\n break;\n\n case FOP(32, 22):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32h(fp0, fs);\n\n gen_helper_float_cvts_pu(fp0, fp0);\n\n gen_store_fpr32(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n }\n\n opn = \"cvt.s.pu\";\n\n break;\n\n case FOP(36, 22):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_helper_float_cvtpw_ps(fp0, fp0);\n\n gen_store_fpr64(ctx, fp0, fd);\n\n tcg_temp_free_i64(fp0);\n\n }\n\n opn = \"cvt.pw.ps\";\n\n break;\n\n case FOP(40, 22):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32(fp0, fs);\n\n gen_helper_float_cvts_pl(fp0, fp0);\n\n gen_store_fpr32(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n }\n\n opn = \"cvt.s.pl\";\n\n break;\n\n case FOP(44, 22):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n TCGv_i32 fp1 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32(fp0, fs);\n\n gen_load_fpr32(fp1, ft);\n\n gen_store_fpr32h(fp0, fd);\n\n gen_store_fpr32(fp1, fd);\n\n tcg_temp_free_i32(fp0);\n\n tcg_temp_free_i32(fp1);\n\n }\n\n opn = \"pll.ps\";\n\n break;\n\n case FOP(45, 22):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n TCGv_i32 fp1 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32(fp0, fs);\n\n gen_load_fpr32h(fp1, ft);\n\n gen_store_fpr32(fp1, fd);\n\n gen_store_fpr32h(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n tcg_temp_free_i32(fp1);\n\n }\n\n opn = \"plu.ps\";\n\n break;\n\n case FOP(46, 22):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n TCGv_i32 fp1 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32h(fp0, fs);\n\n gen_load_fpr32(fp1, ft);\n\n gen_store_fpr32(fp1, fd);\n\n gen_store_fpr32h(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n tcg_temp_free_i32(fp1);\n\n }\n\n opn = \"pul.ps\";\n\n break;\n\n case FOP(47, 22):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i32 fp0 = tcg_temp_new_i32();\n\n TCGv_i32 fp1 = tcg_temp_new_i32();\n\n\n\n gen_load_fpr32h(fp0, fs);\n\n gen_load_fpr32h(fp1, ft);\n\n gen_store_fpr32(fp1, fd);\n\n gen_store_fpr32h(fp0, fd);\n\n tcg_temp_free_i32(fp0);\n\n tcg_temp_free_i32(fp1);\n\n }\n\n opn = \"puu.ps\";\n\n break;\n\n case FOP(48, 22):\n\n case FOP(49, 22):\n\n case FOP(50, 22):\n\n case FOP(51, 22):\n\n case FOP(52, 22):\n\n case FOP(53, 22):\n\n case FOP(54, 22):\n\n case FOP(55, 22):\n\n case FOP(56, 22):\n\n case FOP(57, 22):\n\n case FOP(58, 22):\n\n case FOP(59, 22):\n\n case FOP(60, 22):\n\n case FOP(61, 22):\n\n case FOP(62, 22):\n\n case FOP(63, 22):\n\n check_cp1_64bitmode(ctx);\n\n {\n\n TCGv_i64 fp0 = tcg_temp_new_i64();\n\n TCGv_i64 fp1 = tcg_temp_new_i64();\n\n\n\n gen_load_fpr64(ctx, fp0, fs);\n\n gen_load_fpr64(ctx, fp1, ft);\n\n if (ctx->opcode & (1 << 6)) {\n\n gen_cmpabs_ps(func-48, fp0, fp1, cc);\n\n opn = condnames_abs[func-48];\n\n } else {\n\n gen_cmp_ps(func-48, fp0, fp1, cc);\n\n opn = condnames[func-48];\n\n }\n\n tcg_temp_free_i64(fp0);\n\n tcg_temp_free_i64(fp1);\n\n }\n\n break;\n\n default:\n\n MIPS_INVAL(opn);\n\n generate_exception (ctx, EXCP_RI);\n\n return;\n\n }\n\n switch (optype) {\n\n case BINOP:\n\n MIPS_DEBUG(\"%s %s, %s, %s\", opn, fregnames[fd], fregnames[fs], fregnames[ft]);\n\n break;\n\n case CMPOP:\n\n MIPS_DEBUG(\"%s %s,%s\", opn, fregnames[fs], fregnames[ft]);\n\n break;\n\n default:\n\n MIPS_DEBUG(\"%s %s,%s\", opn, fregnames[fd], fregnames[fs]);\n\n break;\n\n }\n\n}\n", + "output": "0", + "index": 1559 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int decode_cell(Indeo3DecodeContext *ctx, AVCodecContext *avctx,\n\n Plane *plane, Cell *cell, const uint8_t *data_ptr,\n\n const uint8_t *last_ptr)\n\n{\n\n int x, mv_x, mv_y, mode, vq_index, prim_indx, second_indx;\n\n int zoom_fac;\n\n int offset, error = 0, swap_quads[2];\n\n uint8_t code, *block, *ref_block = 0;\n\n const vqEntry *delta[2];\n\n const uint8_t *data_start = data_ptr;\n\n\n\n /* get coding mode and VQ table index from the VQ descriptor byte */\n\n code = *data_ptr++;\n\n mode = code >> 4;\n\n vq_index = code & 0xF;\n\n\n\n /* setup output and reference pointers */\n\n offset = (cell->ypos << 2) * plane->pitch + (cell->xpos << 2);\n\n block = plane->pixels[ctx->buf_sel] + offset;\n\n if (!cell->mv_ptr) {\n\n /* use previous line as reference for INTRA cells */\n\n ref_block = block - plane->pitch;\n\n } else if (mode >= 10) {\n\n /* for mode 10 and 11 INTER first copy the predicted cell into the current one */\n\n /* so we don't need to do data copying for each RLE code later */\n\n copy_cell(ctx, plane, cell);\n\n } else {\n\n /* set the pointer to the reference pixels for modes 0-4 INTER */\n\n mv_y = cell->mv_ptr[0];\n\n mv_x = cell->mv_ptr[1];\n\n\n\n\n\n\n\n\n offset += mv_y * plane->pitch + mv_x;\n\n ref_block = plane->pixels[ctx->buf_sel ^ 1] + offset;\n\n\n\n\n /* select VQ tables as follows: */\n\n /* modes 0 and 3 use only the primary table for all lines in a block */\n\n /* while modes 1 and 4 switch between primary and secondary tables on alternate lines */\n\n if (mode == 1 || mode == 4) {\n\n code = ctx->alt_quant[vq_index];\n\n prim_indx = (code >> 4) + ctx->cb_offset;\n\n second_indx = (code & 0xF) + ctx->cb_offset;\n\n } else {\n\n vq_index += ctx->cb_offset;\n\n prim_indx = second_indx = vq_index;\n\n\n\n\n if (prim_indx >= 24 || second_indx >= 24) {\n\n av_log(avctx, AV_LOG_ERROR, \"Invalid VQ table indexes! Primary: %d, secondary: %d!\\n\",\n\n prim_indx, second_indx);\n\n\n\n\n\n delta[0] = &vq_tab[second_indx];\n\n delta[1] = &vq_tab[prim_indx];\n\n swap_quads[0] = second_indx >= 16;\n\n swap_quads[1] = prim_indx >= 16;\n\n\n\n /* requantize the prediction if VQ index of this cell differs from VQ index */\n\n /* of the predicted cell in order to avoid overflows. */\n\n if (vq_index >= 8 && ref_block) {\n\n for (x = 0; x < cell->width << 2; x++)\n\n ref_block[x] = requant_tab[vq_index & 7][ref_block[x]];\n\n\n\n\n error = IV3_NOERR;\n\n\n\n switch (mode) {\n\n case 0: /*------------------ MODES 0 & 1 (4x4 block processing) --------------------*/\n\n case 1:\n\n case 3: /*------------------ MODES 3 & 4 (4x8 block processing) --------------------*/\n\n case 4:\n\n if (mode >= 3 && cell->mv_ptr) {\n\n av_log(avctx, AV_LOG_ERROR, \"Attempt to apply Mode 3/4 to an INTER cell!\\n\");\n\n\n\n\n\n zoom_fac = mode >= 3;\n\n error = decode_cell_data(cell, block, ref_block, plane->pitch, 0, zoom_fac,\n\n mode, delta, swap_quads, &data_ptr, last_ptr);\n\n break;\n\n case 10: /*-------------------- MODE 10 (8x8 block processing) ---------------------*/\n\n case 11: /*----------------- MODE 11 (4x8 INTER block processing) ------------------*/\n\n if (mode == 10 && !cell->mv_ptr) { /* MODE 10 INTRA processing */\n\n error = decode_cell_data(cell, block, ref_block, plane->pitch, 1, 1,\n\n mode, delta, swap_quads, &data_ptr, last_ptr);\n\n } else { /* mode 10 and 11 INTER processing */\n\n if (mode == 11 && !cell->mv_ptr) {\n\n av_log(avctx, AV_LOG_ERROR, \"Attempt to use Mode 11 for an INTRA cell!\\n\");\n\n\n\n\n\n zoom_fac = mode == 10;\n\n error = decode_cell_data(cell, block, ref_block, plane->pitch,\n\n zoom_fac, 1, mode, delta, swap_quads,\n\n &data_ptr, last_ptr);\n\n\n break;\n\n default:\n\n av_log(avctx, AV_LOG_ERROR, \"Unsupported coding mode: %d\\n\", mode);\n\n\n }//switch mode\n\n\n\n switch (error) {\n\n case IV3_BAD_RLE:\n\n av_log(avctx, AV_LOG_ERROR, \"Mode %d: RLE code %X is not allowed at the current line\\n\",\n\n mode, data_ptr[-1]);\n\n\n case IV3_BAD_DATA:\n\n av_log(avctx, AV_LOG_ERROR, \"Mode %d: invalid VQ data\\n\", mode);\n\n\n case IV3_BAD_COUNTER:\n\n av_log(avctx, AV_LOG_ERROR, \"Mode %d: RLE-FB invalid counter: %d\\n\", mode, code);\n\n\n case IV3_UNSUPPORTED:\n\n av_log(avctx, AV_LOG_ERROR, \"Mode %d: unsupported RLE code: %X\\n\", mode, data_ptr[-1]);\n\n\n case IV3_OUT_OF_DATA:\n\n av_log(avctx, AV_LOG_ERROR, \"Mode %d: attempt to read past end of buffer\\n\", mode);\n\n\n\n\n\n return data_ptr - data_start; /* report number of bytes consumed from the input buffer */\n", + "output": "1", + "index": 26635 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void coroutine_fn v9fs_create(void *opaque)\n\n{\n\n int32_t fid;\n\n int err = 0;\n\n size_t offset = 7;\n\n V9fsFidState *fidp;\n\n V9fsQID qid;\n\n int32_t perm;\n\n int8_t mode;\n\n V9fsPath path;\n\n struct stat stbuf;\n\n V9fsString name;\n\n V9fsString extension;\n\n int iounit;\n\n V9fsPDU *pdu = opaque;\n\n\n\n v9fs_path_init(&path);\n\n v9fs_string_init(&name);\n\n v9fs_string_init(&extension);\n\n err = pdu_unmarshal(pdu, offset, \"dsdbs\", &fid, &name,\n\n &perm, &mode, &extension);\n\n if (err < 0) {\n\n goto out_nofid;\n\n\n trace_v9fs_create(pdu->tag, pdu->id, fid, name.data, perm, mode);\n\n\n\n if (name_is_illegal(name.data)) {\n\n err = -ENOENT;\n\n goto out_nofid;\n\n\n\n\n if (!strcmp(\".\", name.data) || !strcmp(\"..\", name.data)) {\n\n err = -EEXIST;\n\n goto out_nofid;\n\n\n\n\n fidp = get_fid(pdu, fid);\n\n if (fidp == NULL) {\n\n\n goto out_nofid;\n\n\n\n\n\n\n if (perm & P9_STAT_MODE_DIR) {\n\n err = v9fs_co_mkdir(pdu, fidp, &name, perm & 0777,\n\n fidp->uid, -1, &stbuf);\n\n if (err < 0) {\n\n\n\n err = v9fs_co_name_to_path(pdu, &fidp->path, name.data, &path);\n\n if (err < 0) {\n\n\n\n v9fs_path_copy(&fidp->path, &path);\n\n err = v9fs_co_opendir(pdu, fidp);\n\n if (err < 0) {\n\n\n\n fidp->fid_type = P9_FID_DIR;\n\n } else if (perm & P9_STAT_MODE_SYMLINK) {\n\n err = v9fs_co_symlink(pdu, fidp, &name,\n\n extension.data, -1 , &stbuf);\n\n if (err < 0) {\n\n\n\n err = v9fs_co_name_to_path(pdu, &fidp->path, name.data, &path);\n\n if (err < 0) {\n\n\n\n v9fs_path_copy(&fidp->path, &path);\n\n } else if (perm & P9_STAT_MODE_LINK) {\n\n int32_t ofid = atoi(extension.data);\n\n V9fsFidState *ofidp = get_fid(pdu, ofid);\n\n if (ofidp == NULL) {\n\n\n\n\n err = v9fs_co_link(pdu, ofidp, fidp, &name);\n\n put_fid(pdu, ofidp);\n\n if (err < 0) {\n\n\n\n err = v9fs_co_name_to_path(pdu, &fidp->path, name.data, &path);\n\n if (err < 0) {\n\n fidp->fid_type = P9_FID_NONE;\n\n\n\n v9fs_path_copy(&fidp->path, &path);\n\n err = v9fs_co_lstat(pdu, &fidp->path, &stbuf);\n\n if (err < 0) {\n\n fidp->fid_type = P9_FID_NONE;\n\n\n\n } else if (perm & P9_STAT_MODE_DEVICE) {\n\n char ctype;\n\n uint32_t major, minor;\n\n mode_t nmode = 0;\n\n\n\n if (sscanf(extension.data, \"%c %u %u\", &ctype, &major, &minor) != 3) {\n\n err = -errno;\n\n\n\n\n\n switch (ctype) {\n\n case 'c':\n\n nmode = S_IFCHR;\n\n break;\n\n case 'b':\n\n nmode = S_IFBLK;\n\n break;\n\n default:\n\n err = -EIO;\n\n\n\n\n\n nmode |= perm & 0777;\n\n err = v9fs_co_mknod(pdu, fidp, &name, fidp->uid, -1,\n\n makedev(major, minor), nmode, &stbuf);\n\n if (err < 0) {\n\n\n\n err = v9fs_co_name_to_path(pdu, &fidp->path, name.data, &path);\n\n if (err < 0) {\n\n\n\n v9fs_path_copy(&fidp->path, &path);\n\n } else if (perm & P9_STAT_MODE_NAMED_PIPE) {\n\n err = v9fs_co_mknod(pdu, fidp, &name, fidp->uid, -1,\n\n 0, S_IFIFO | (perm & 0777), &stbuf);\n\n if (err < 0) {\n\n\n\n err = v9fs_co_name_to_path(pdu, &fidp->path, name.data, &path);\n\n if (err < 0) {\n\n\n\n v9fs_path_copy(&fidp->path, &path);\n\n } else if (perm & P9_STAT_MODE_SOCKET) {\n\n err = v9fs_co_mknod(pdu, fidp, &name, fidp->uid, -1,\n\n 0, S_IFSOCK | (perm & 0777), &stbuf);\n\n if (err < 0) {\n\n\n\n err = v9fs_co_name_to_path(pdu, &fidp->path, name.data, &path);\n\n if (err < 0) {\n\n\n\n v9fs_path_copy(&fidp->path, &path);\n\n } else {\n\n err = v9fs_co_open2(pdu, fidp, &name, -1,\n\n omode_to_uflags(mode)|O_CREAT, perm, &stbuf);\n\n if (err < 0) {\n\n\n\n fidp->fid_type = P9_FID_FILE;\n\n fidp->open_flags = omode_to_uflags(mode);\n\n if (fidp->open_flags & O_EXCL) {\n\n /*\n\n * We let the host file system do O_EXCL check\n\n * We should not reclaim such fd\n\n */\n\n fidp->flags |= FID_NON_RECLAIMABLE;\n\n\n\n iounit = get_iounit(pdu, &fidp->path);\n\n stat_to_qid(&stbuf, &qid);\n\n err = pdu_marshal(pdu, offset, \"Qd\", &qid, iounit);\n\n if (err < 0) {\n\n\n\n err += offset;\n\n trace_v9fs_create_return(pdu->tag, pdu->id,\n\n qid.type, qid.version, qid.path, iounit);\n\nout:\n\n put_fid(pdu, fidp);\n\nout_nofid:\n\n pdu_complete(pdu, err);\n\n v9fs_string_free(&name);\n\n v9fs_string_free(&extension);\n\n v9fs_path_free(&path);\n", + "output": "1", + "index": 6897 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int xsub_encode(AVCodecContext *avctx, unsigned char *buf,\n\n int bufsize, void *data)\n\n{\n\n AVSubtitle *h = data;\n\n uint64_t startTime = h->pts / 1000; // FIXME: need better solution...\n\n uint64_t endTime = startTime + h->end_display_time - h->start_display_time;\n\n int start_tc[4], end_tc[4];\n\n uint8_t *hdr = buf + 27; // Point behind the timestamp\n\n uint8_t *rlelenptr;\n\n uint16_t width, height;\n\n int i;\n\n PutBitContext pb;\n\n\n\n if (bufsize < 27 + 7*2 + 4*3) {\n\n av_log(avctx, AV_LOG_ERROR, \"Buffer too small for XSUB header.\\n\");\n\n return -1;\n\n }\n\n\n\n // TODO: support multiple rects\n\n if (h->num_rects > 1)\n\n av_log(avctx, AV_LOG_WARNING, \"Only single rects supported (%d in subtitle.)\\n\", h->num_rects);\n\n\n\n // TODO: render text-based subtitles into bitmaps\n\n if (!h->rects[0]->pict.data[0] || !h->rects[0]->pict.data[1]) {\n\n av_log(avctx, AV_LOG_WARNING, \"No subtitle bitmap available.\\n\");\n\n return -1;\n\n }\n\n\n\n // TODO: color reduction, similar to dvdsub encoder\n\n if (h->rects[0]->nb_colors > 4)\n\n av_log(avctx, AV_LOG_WARNING, \"No more than 4 subtitle colors supported (%d found.)\\n\", h->rects[0]->nb_colors);\n\n\n\n // TODO: Palette swapping if color zero is not transparent\n\n if (((uint32_t *)h->rects[0]->pict.data[1])[0] & 0xff)\n\n av_log(avctx, AV_LOG_WARNING, \"Color index 0 is not transparent. Transparency will be messed up.\\n\");\n\n\n\n if (make_tc(startTime, start_tc) || make_tc(endTime, end_tc)) {\n\n av_log(avctx, AV_LOG_WARNING, \"Time code >= 100 hours.\\n\");\n\n return -1;\n\n }\n\n\n\n snprintf(buf, 28,\n\n \"[%02d:%02d:%02d.%03d-%02d:%02d:%02d.%03d]\",\n\n start_tc[3], start_tc[2], start_tc[1], start_tc[0],\n\n end_tc[3], end_tc[2], end_tc[1], end_tc[0]);\n\n\n\n // Width and height must probably be multiples of 2.\n\n // 2 pixels required on either side of subtitle.\n\n // Possibly due to limitations of hardware renderers.\n\n // TODO: check if the bitmap is already padded\n\n width = FFALIGN(h->rects[0]->w, 2) + PADDING * 2;\n\n height = FFALIGN(h->rects[0]->h, 2);\n\n\n\n bytestream_put_le16(&hdr, width);\n\n bytestream_put_le16(&hdr, height);\n\n bytestream_put_le16(&hdr, h->rects[0]->x);\n\n bytestream_put_le16(&hdr, h->rects[0]->y);\n\n bytestream_put_le16(&hdr, h->rects[0]->x + width);\n\n bytestream_put_le16(&hdr, h->rects[0]->y + height);\n\n\n\n rlelenptr = hdr; // Will store length of first field here later.\n\n hdr+=2;\n\n\n\n // Palette\n\n for (i=0; i<4; i++)\n\n bytestream_put_be24(&hdr, ((uint32_t *)h->rects[0]->pict.data[1])[i]);\n\n\n\n // Bitmap\n\n // RLE buffer. Reserve 2 bytes for possible padding after the last row.\n\n init_put_bits(&pb, hdr, bufsize - (hdr - buf) - 2);\n\n if (xsub_encode_rle(&pb, h->rects[0]->pict.data[0],\n\n h->rects[0]->pict.linesize[0]*2,\n\n h->rects[0]->w, (h->rects[0]->h + 1) >> 1))\n\n return -1;\n\n bytestream_put_le16(&rlelenptr, put_bits_count(&pb) >> 3); // Length of first field\n\n\n\n if (xsub_encode_rle(&pb, h->rects[0]->pict.data[0] + h->rects[0]->pict.linesize[0],\n\n h->rects[0]->pict.linesize[0]*2,\n\n h->rects[0]->w, h->rects[0]->h >> 1))\n\n return -1;\n\n\n\n // Enforce total height to be be multiple of 2\n\n if (h->rects[0]->h & 1) {\n\n put_xsub_rle(&pb, h->rects[0]->w, PADDING_COLOR);\n\n align_put_bits(&pb);\n\n }\n\n\n\n flush_put_bits(&pb);\n\n\n\n return hdr - buf + put_bits_count(&pb)/8;\n\n}\n", + "output": "1", + "index": 19703 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void ref405ep_init(MachineState *machine)\n\n{\n\n ram_addr_t ram_size = machine->ram_size;\n\n const char *kernel_filename = machine->kernel_filename;\n\n const char *kernel_cmdline = machine->kernel_cmdline;\n\n const char *initrd_filename = machine->initrd_filename;\n\n char *filename;\n\n ppc4xx_bd_info_t bd;\n\n CPUPPCState *env;\n\n qemu_irq *pic;\n\n MemoryRegion *bios;\n\n MemoryRegion *sram = g_new(MemoryRegion, 1);\n\n ram_addr_t bdloc;\n\n MemoryRegion *ram_memories = g_malloc(2 * sizeof(*ram_memories));\n\n hwaddr ram_bases[2], ram_sizes[2];\n\n target_ulong sram_size;\n\n long bios_size;\n\n //int phy_addr = 0;\n\n //static int phy_addr = 1;\n\n target_ulong kernel_base, initrd_base;\n\n long kernel_size, initrd_size;\n\n int linux_boot;\n\n int fl_idx, fl_sectors, len;\n\n DriveInfo *dinfo;\n\n MemoryRegion *sysmem = get_system_memory();\n\n\n\n /* XXX: fix this */\n\n memory_region_allocate_system_memory(&ram_memories[0], NULL, \"ef405ep.ram\",\n\n 0x08000000);\n\n ram_bases[0] = 0;\n\n ram_sizes[0] = 0x08000000;\n\n memory_region_init(&ram_memories[1], NULL, \"ef405ep.ram1\", 0);\n\n ram_bases[1] = 0x00000000;\n\n ram_sizes[1] = 0x00000000;\n\n ram_size = 128 * 1024 * 1024;\n\n#ifdef DEBUG_BOARD_INIT\n\n printf(\"%s: register cpu\\n\", __func__);\n\n#endif\n\n env = ppc405ep_init(sysmem, ram_memories, ram_bases, ram_sizes,\n\n 33333333, &pic, kernel_filename == NULL ? 0 : 1);\n\n /* allocate SRAM */\n\n sram_size = 512 * 1024;\n\n memory_region_init_ram(sram, NULL, \"ef405ep.sram\", sram_size, &error_abort);\n\n vmstate_register_ram_global(sram);\n\n memory_region_add_subregion(sysmem, 0xFFF00000, sram);\n\n /* allocate and load BIOS */\n\n#ifdef DEBUG_BOARD_INIT\n\n printf(\"%s: register BIOS\\n\", __func__);\n\n#endif\n\n fl_idx = 0;\n\n#ifdef USE_FLASH_BIOS\n\n dinfo = drive_get(IF_PFLASH, 0, fl_idx);\n\n if (dinfo) {\n\n BlockBackend *blk = blk_by_legacy_dinfo(dinfo);\n\n\n\n bios_size = blk_getlength(blk);\n\n fl_sectors = (bios_size + 65535) >> 16;\n\n#ifdef DEBUG_BOARD_INIT\n\n printf(\"Register parallel flash %d size %lx\"\n\n \" at addr %lx '%s' %d\\n\",\n\n fl_idx, bios_size, -bios_size,\n\n blk_name(blk), fl_sectors);\n\n#endif\n\n pflash_cfi02_register((uint32_t)(-bios_size),\n\n NULL, \"ef405ep.bios\", bios_size,\n\n blk, 65536, fl_sectors, 1,\n\n 2, 0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA,\n\n 1);\n\n fl_idx++;\n\n } else\n\n#endif\n\n {\n\n#ifdef DEBUG_BOARD_INIT\n\n printf(\"Load BIOS from file\\n\");\n\n#endif\n\n bios = g_new(MemoryRegion, 1);\n\n memory_region_init_ram(bios, NULL, \"ef405ep.bios\", BIOS_SIZE,\n\n &error_abort);\n\n vmstate_register_ram_global(bios);\n\n\n\n if (bios_name == NULL)\n\n bios_name = BIOS_FILENAME;\n\n filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);\n\n if (filename) {\n\n bios_size = load_image(filename, memory_region_get_ram_ptr(bios));\n\n g_free(filename);\n\n if (bios_size < 0 || bios_size > BIOS_SIZE) {\n\n error_report(\"Could not load PowerPC BIOS '%s'\", bios_name);\n\n exit(1);\n\n }\n\n bios_size = (bios_size + 0xfff) & ~0xfff;\n\n memory_region_add_subregion(sysmem, (uint32_t)(-bios_size), bios);\n\n } else if (!qtest_enabled() || kernel_filename != NULL) {\n\n error_report(\"Could not load PowerPC BIOS '%s'\", bios_name);\n\n exit(1);\n\n } else {\n\n /* Avoid an uninitialized variable warning */\n\n bios_size = -1;\n\n }\n\n memory_region_set_readonly(bios, true);\n\n }\n\n /* Register FPGA */\n\n#ifdef DEBUG_BOARD_INIT\n\n printf(\"%s: register FPGA\\n\", __func__);\n\n#endif\n\n ref405ep_fpga_init(sysmem, 0xF0300000);\n\n /* Register NVRAM */\n\n#ifdef DEBUG_BOARD_INIT\n\n printf(\"%s: register NVRAM\\n\", __func__);\n\n#endif\n\n m48t59_init(NULL, 0xF0000000, 0, 8192, 1968, 8);\n\n /* Load kernel */\n\n linux_boot = (kernel_filename != NULL);\n\n if (linux_boot) {\n\n#ifdef DEBUG_BOARD_INIT\n\n printf(\"%s: load kernel\\n\", __func__);\n\n#endif\n\n memset(&bd, 0, sizeof(bd));\n\n bd.bi_memstart = 0x00000000;\n\n bd.bi_memsize = ram_size;\n\n bd.bi_flashstart = -bios_size;\n\n bd.bi_flashsize = -bios_size;\n\n bd.bi_flashoffset = 0;\n\n bd.bi_sramstart = 0xFFF00000;\n\n bd.bi_sramsize = sram_size;\n\n bd.bi_bootflags = 0;\n\n bd.bi_intfreq = 133333333;\n\n bd.bi_busfreq = 33333333;\n\n bd.bi_baudrate = 115200;\n\n bd.bi_s_version[0] = 'Q';\n\n bd.bi_s_version[1] = 'M';\n\n bd.bi_s_version[2] = 'U';\n\n bd.bi_s_version[3] = '\\0';\n\n bd.bi_r_version[0] = 'Q';\n\n bd.bi_r_version[1] = 'E';\n\n bd.bi_r_version[2] = 'M';\n\n bd.bi_r_version[3] = 'U';\n\n bd.bi_r_version[4] = '\\0';\n\n bd.bi_procfreq = 133333333;\n\n bd.bi_plb_busfreq = 33333333;\n\n bd.bi_pci_busfreq = 33333333;\n\n bd.bi_opbfreq = 33333333;\n\n bdloc = ppc405_set_bootinfo(env, &bd, 0x00000001);\n\n env->gpr[3] = bdloc;\n\n kernel_base = KERNEL_LOAD_ADDR;\n\n /* now we can load the kernel */\n\n kernel_size = load_image_targphys(kernel_filename, kernel_base,\n\n ram_size - kernel_base);\n\n if (kernel_size < 0) {\n\n fprintf(stderr, \"qemu: could not load kernel '%s'\\n\",\n\n kernel_filename);\n\n exit(1);\n\n }\n\n printf(\"Load kernel size %ld at \" TARGET_FMT_lx,\n\n kernel_size, kernel_base);\n\n /* load initrd */\n\n if (initrd_filename) {\n\n initrd_base = INITRD_LOAD_ADDR;\n\n initrd_size = load_image_targphys(initrd_filename, initrd_base,\n\n ram_size - initrd_base);\n\n if (initrd_size < 0) {\n\n fprintf(stderr, \"qemu: could not load initial ram disk '%s'\\n\",\n\n initrd_filename);\n\n exit(1);\n\n }\n\n } else {\n\n initrd_base = 0;\n\n initrd_size = 0;\n\n }\n\n env->gpr[4] = initrd_base;\n\n env->gpr[5] = initrd_size;\n\n if (kernel_cmdline != NULL) {\n\n len = strlen(kernel_cmdline);\n\n bdloc -= ((len + 255) & ~255);\n\n cpu_physical_memory_write(bdloc, kernel_cmdline, len + 1);\n\n env->gpr[6] = bdloc;\n\n env->gpr[7] = bdloc + len;\n\n } else {\n\n env->gpr[6] = 0;\n\n env->gpr[7] = 0;\n\n }\n\n env->nip = KERNEL_LOAD_ADDR;\n\n } else {\n\n kernel_base = 0;\n\n kernel_size = 0;\n\n initrd_base = 0;\n\n initrd_size = 0;\n\n bdloc = 0;\n\n }\n\n#ifdef DEBUG_BOARD_INIT\n\n printf(\"bdloc \" RAM_ADDR_FMT \"\\n\", bdloc);\n\n printf(\"%s: Done\\n\", __func__);\n\n#endif\n\n}\n", + "output": "1", + "index": 20649 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int decode_frame(AVCodecContext *avctx,\n\n void *data, int *got_frame,\n\n AVPacket *avpkt)\n\n{\n\n PNGDecContext *const s = avctx->priv_data;\n\n const uint8_t *buf = avpkt->data;\n\n int buf_size = avpkt->size;\n\n AVFrame *p = data;\n\n uint8_t *crow_buf_base = NULL;\n\n uint32_t tag, length;\n\n int ret;\n\n\n\n /* check signature */\n\n if (buf_size < 8 ||\n\n memcmp(buf, ff_pngsig, 8) != 0 &&\n\n memcmp(buf, ff_mngsig, 8) != 0)\n\n return -1;\n\n\n\n bytestream2_init(&s->gb, buf + 8, buf_size - 8);\n\n s->y = s->state = 0;\n\n\n\n /* init the zlib */\n\n s->zstream.zalloc = ff_png_zalloc;\n\n s->zstream.zfree = ff_png_zfree;\n\n s->zstream.opaque = NULL;\n\n ret = inflateInit(&s->zstream);\n\n if (ret != Z_OK)\n\n return -1;\n\n for (;;) {\n\n if (bytestream2_get_bytes_left(&s->gb) <= 0)\n\n goto fail;\n\n length = bytestream2_get_be32(&s->gb);\n\n if (length > 0x7fffffff)\n\n goto fail;\n\n tag = bytestream2_get_le32(&s->gb);\n\n av_dlog(avctx, \"png: tag=%c%c%c%c length=%u\\n\",\n\n (tag & 0xff),\n\n ((tag >> 8) & 0xff),\n\n ((tag >> 16) & 0xff),\n\n ((tag >> 24) & 0xff), length);\n\n switch (tag) {\n\n case MKTAG('I', 'H', 'D', 'R'):\n\n if (length != 13)\n\n goto fail;\n\n s->width = bytestream2_get_be32(&s->gb);\n\n s->height = bytestream2_get_be32(&s->gb);\n\n if (av_image_check_size(s->width, s->height, 0, avctx)) {\n\n s->width = s->height = 0;\n\n goto fail;\n\n }\n\n s->bit_depth = bytestream2_get_byte(&s->gb);\n\n s->color_type = bytestream2_get_byte(&s->gb);\n\n s->compression_type = bytestream2_get_byte(&s->gb);\n\n s->filter_type = bytestream2_get_byte(&s->gb);\n\n s->interlace_type = bytestream2_get_byte(&s->gb);\n\n bytestream2_skip(&s->gb, 4); /* crc */\n\n s->state |= PNG_IHDR;\n\n av_dlog(avctx, \"width=%d height=%d depth=%d color_type=%d \"\n\n \"compression_type=%d filter_type=%d interlace_type=%d\\n\",\n\n s->width, s->height, s->bit_depth, s->color_type,\n\n s->compression_type, s->filter_type, s->interlace_type);\n\n break;\n\n case MKTAG('I', 'D', 'A', 'T'):\n\n if (!(s->state & PNG_IHDR))\n\n goto fail;\n\n if (!(s->state & PNG_IDAT)) {\n\n /* init image info */\n\n avctx->width = s->width;\n\n avctx->height = s->height;\n\n\n\n s->channels = ff_png_get_nb_channels(s->color_type);\n\n s->bits_per_pixel = s->bit_depth * s->channels;\n\n s->bpp = (s->bits_per_pixel + 7) >> 3;\n\n s->row_size = (avctx->width * s->bits_per_pixel + 7) >> 3;\n\n\n\n if (s->bit_depth == 8 &&\n\n s->color_type == PNG_COLOR_TYPE_RGB) {\n\n avctx->pix_fmt = AV_PIX_FMT_RGB24;\n\n } else if (s->bit_depth == 8 &&\n\n s->color_type == PNG_COLOR_TYPE_RGB_ALPHA) {\n\n avctx->pix_fmt = AV_PIX_FMT_RGB32;\n\n } else if (s->bit_depth == 8 &&\n\n s->color_type == PNG_COLOR_TYPE_GRAY) {\n\n avctx->pix_fmt = AV_PIX_FMT_GRAY8;\n\n } else if (s->bit_depth == 16 &&\n\n s->color_type == PNG_COLOR_TYPE_GRAY) {\n\n avctx->pix_fmt = AV_PIX_FMT_GRAY16BE;\n\n } else if (s->bit_depth == 16 &&\n\n s->color_type == PNG_COLOR_TYPE_RGB) {\n\n avctx->pix_fmt = AV_PIX_FMT_RGB48BE;\n\n } else if (s->bit_depth == 1 &&\n\n s->color_type == PNG_COLOR_TYPE_GRAY) {\n\n avctx->pix_fmt = AV_PIX_FMT_MONOBLACK;\n\n } else if (s->bit_depth == 8 &&\n\n s->color_type == PNG_COLOR_TYPE_PALETTE) {\n\n avctx->pix_fmt = AV_PIX_FMT_PAL8;\n\n } else if (s->bit_depth == 8 &&\n\n s->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) {\n\n avctx->pix_fmt = AV_PIX_FMT_YA8;\n\n } else if (s->bit_depth == 16 &&\n\n s->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) {\n\n avctx->pix_fmt = AV_PIX_FMT_YA16BE;\n\n } else {\n\n goto fail;\n\n }\n\n\n\n if (ff_get_buffer(avctx, p, AV_GET_BUFFER_FLAG_REF) < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"get_buffer() failed\\n\");\n\n goto fail;\n\n }\n\n p->pict_type = AV_PICTURE_TYPE_I;\n\n p->key_frame = 1;\n\n p->interlaced_frame = !!s->interlace_type;\n\n\n\n /* compute the compressed row size */\n\n if (!s->interlace_type) {\n\n s->crow_size = s->row_size + 1;\n\n } else {\n\n s->pass = 0;\n\n s->pass_row_size = ff_png_pass_row_size(s->pass,\n\n s->bits_per_pixel,\n\n s->width);\n\n s->crow_size = s->pass_row_size + 1;\n\n }\n\n av_dlog(avctx, \"row_size=%d crow_size =%d\\n\",\n\n s->row_size, s->crow_size);\n\n s->image_buf = p->data[0];\n\n s->image_linesize = p->linesize[0];\n\n /* copy the palette if needed */\n\n if (s->color_type == PNG_COLOR_TYPE_PALETTE)\n\n memcpy(p->data[1], s->palette, 256 * sizeof(uint32_t));\n\n /* empty row is used if differencing to the first row */\n\n s->last_row = av_mallocz(s->row_size);\n\n if (!s->last_row)\n\n goto fail;\n\n if (s->interlace_type ||\n\n s->color_type == PNG_COLOR_TYPE_RGB_ALPHA) {\n\n s->tmp_row = av_malloc(s->row_size);\n\n if (!s->tmp_row)\n\n goto fail;\n\n }\n\n /* compressed row */\n\n crow_buf_base = av_malloc(s->row_size + 16);\n\n if (!crow_buf_base)\n\n goto fail;\n\n\n\n /* we want crow_buf+1 to be 16-byte aligned */\n\n s->crow_buf = crow_buf_base + 15;\n\n s->zstream.avail_out = s->crow_size;\n\n s->zstream.next_out = s->crow_buf;\n\n }\n\n s->state |= PNG_IDAT;\n\n if (png_decode_idat(s, length) < 0)\n\n goto fail;\n\n bytestream2_skip(&s->gb, 4); /* crc */\n\n break;\n\n case MKTAG('P', 'L', 'T', 'E'):\n\n {\n\n int n, i, r, g, b;\n\n\n\n if ((length % 3) != 0 || length > 256 * 3)\n\n goto skip_tag;\n\n /* read the palette */\n\n n = length / 3;\n\n for (i = 0; i < n; i++) {\n\n r = bytestream2_get_byte(&s->gb);\n\n g = bytestream2_get_byte(&s->gb);\n\n b = bytestream2_get_byte(&s->gb);\n\n s->palette[i] = (0xff << 24) | (r << 16) | (g << 8) | b;\n\n }\n\n for (; i < 256; i++)\n\n s->palette[i] = (0xff << 24);\n\n s->state |= PNG_PLTE;\n\n bytestream2_skip(&s->gb, 4); /* crc */\n\n }\n\n break;\n\n case MKTAG('t', 'R', 'N', 'S'):\n\n {\n\n int v, i;\n\n\n\n /* read the transparency. XXX: Only palette mode supported */\n\n if (s->color_type != PNG_COLOR_TYPE_PALETTE ||\n\n length > 256 ||\n\n !(s->state & PNG_PLTE))\n\n goto skip_tag;\n\n for (i = 0; i < length; i++) {\n\n v = bytestream2_get_byte(&s->gb);\n\n s->palette[i] = (s->palette[i] & 0x00ffffff) | (v << 24);\n\n }\n\n bytestream2_skip(&s->gb, 4); /* crc */\n\n }\n\n break;\n\n case MKTAG('I', 'E', 'N', 'D'):\n\n if (!(s->state & PNG_ALLIMAGE))\n\n goto fail;\n\n bytestream2_skip(&s->gb, 4); /* crc */\n\n goto exit_loop;\n\n default:\n\n /* skip tag */\n\nskip_tag:\n\n bytestream2_skip(&s->gb, length + 4);\n\n break;\n\n }\n\n }\n\nexit_loop:\n\n /* handle p-frames only if a predecessor frame is available */\n\n if (s->prev->data[0]) {\n\n if (!(avpkt->flags & AV_PKT_FLAG_KEY)) {\n\n int i, j;\n\n uint8_t *pd = p->data[0];\n\n uint8_t *pd_last = s->prev->data[0];\n\n\n\n for (j = 0; j < s->height; j++) {\n\n for (i = 0; i < s->width * s->bpp; i++)\n\n pd[i] += pd_last[i];\n\n pd += s->image_linesize;\n\n pd_last += s->image_linesize;\n\n }\n\n }\n\n }\n\n\n\n av_frame_unref(s->prev);\n\n if ((ret = av_frame_ref(s->prev, p)) < 0)\n\n goto fail;\n\n\n\n *got_frame = 1;\n\n\n\n ret = bytestream2_tell(&s->gb);\n\nthe_end:\n\n inflateEnd(&s->zstream);\n\n av_free(crow_buf_base);\n\n s->crow_buf = NULL;\n\n av_freep(&s->last_row);\n\n av_freep(&s->tmp_row);\n\n return ret;\n\nfail:\n\n ret = -1;\n\n goto the_end;\n\n}\n", + "output": "0", + "index": 1543 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int ff_rm_read_mdpr_codecdata(AVFormatContext *s, AVIOContext *pb,\n\n AVStream *st, RMStream *rst,\n\n unsigned int codec_data_size, const uint8_t *mime)\n\n{\n\n unsigned int v;\n\n int size;\n\n int64_t codec_pos;\n\n int ret;\n\n\n\n if (codec_data_size > INT_MAX)\n\n return AVERROR_INVALIDDATA;\n\n\n\n avpriv_set_pts_info(st, 64, 1, 1000);\n\n codec_pos = avio_tell(pb);\n\n v = avio_rb32(pb);\n\n\n\n if (v == MKBETAG('M', 'L', 'T', 'I')) {\n\n int number_of_streams = avio_rb16(pb);\n\n int number_of_mdpr;\n\n int i;\n\n for (i = 0; icodec, codec_data_size)) < 0)\n\n return ret;\n\n\n\n st->codec->codec_type = AVMEDIA_TYPE_AUDIO;\n\n st->codec->codec_tag = AV_RL32(st->codec->extradata);\n\n st->codec->codec_id = ff_codec_get_id(ff_rm_codec_tags,\n\n st->codec->codec_tag);\n\n } else if(mime && !strcmp(mime, \"logical-fileinfo\")){\n\n int stream_count, rule_count, property_count, i;\n\n ff_free_stream(s, st);\n\n if (avio_rb16(pb) != 0) {\n\n av_log(s, AV_LOG_WARNING, \"Unsupported version\\n\");\n\n goto skip;\n\n }\n\n stream_count = avio_rb16(pb);\n\n avio_skip(pb, 6*stream_count);\n\n rule_count = avio_rb16(pb);\n\n avio_skip(pb, 2*rule_count);\n\n property_count = avio_rb16(pb);\n\n for(i=0; imetadata, name, val, 0);\n\n break;\n\n default: avio_skip(pb, avio_rb16(pb));\n\n }\n\n }\n\n } else {\n\n int fps;\n\n if (avio_rl32(pb) != MKTAG('V', 'I', 'D', 'O')) {\n\n fail1:\n\n av_log(s, AV_LOG_WARNING, \"Unsupported stream type %08x\\n\", v);\n\n goto skip;\n\n }\n\n st->codec->codec_tag = avio_rl32(pb);\n\n st->codec->codec_id = ff_codec_get_id(ff_rm_codec_tags,\n\n st->codec->codec_tag);\n\n av_dlog(s, \"%X %X\\n\", st->codec->codec_tag, MKTAG('R', 'V', '2', '0'));\n\n if (st->codec->codec_id == AV_CODEC_ID_NONE)\n\n goto fail1;\n\n st->codec->width = avio_rb16(pb);\n\n st->codec->height = avio_rb16(pb);\n\n avio_skip(pb, 2); // looks like bits per sample\n\n avio_skip(pb, 4); // always zero?\n\n st->codec->codec_type = AVMEDIA_TYPE_VIDEO;\n\n st->need_parsing = AVSTREAM_PARSE_TIMESTAMPS;\n\n fps = avio_rb32(pb);\n\n\n\n if ((ret = rm_read_extradata(pb, st->codec, codec_data_size - (avio_tell(pb) - codec_pos))) < 0)\n\n return ret;\n\n\n\n if (fps > 0) {\n\n av_reduce(&st->avg_frame_rate.den, &st->avg_frame_rate.num,\n\n 0x10000, fps, (1 << 30) - 1);\n\n#if FF_API_R_FRAME_RATE\n\n st->r_frame_rate = st->avg_frame_rate;\n\n#endif\n\n } else if (s->error_recognition & AV_EF_EXPLODE) {\n\n av_log(s, AV_LOG_ERROR, \"Invalid framerate\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n }\n\n\n\nskip:\n\n /* skip codec info */\n\n size = avio_tell(pb) - codec_pos;\n\n avio_skip(pb, codec_data_size - size);\n\n\n\n return 0;\n\n}\n", + "output": "1", + "index": 9301 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int bdrv_qed_open(BlockDriverState *bs, QDict *options, int flags,\n Error **errp)\n{\n BDRVQEDState *s = bs->opaque;\n QEDHeader le_header;\n int64_t file_size;\n int ret;\n s->bs = bs;\n QSIMPLEQ_INIT(&s->allocating_write_reqs);\n ret = bdrv_pread(bs->file, 0, &le_header, sizeof(le_header));\n if (ret < 0) {\n return ret;\n qed_header_le_to_cpu(&le_header, &s->header);\n if (s->header.magic != QED_MAGIC) {\n error_setg(errp, \"Image not in QED format\");\n if (s->header.features & ~QED_FEATURE_MASK) {\n /* image uses unsupported feature bits */\n char buf[64];\n snprintf(buf, sizeof(buf), \"%\" PRIx64,\n s->header.features & ~QED_FEATURE_MASK);\n error_set(errp, QERR_UNKNOWN_BLOCK_FORMAT_FEATURE,\n bdrv_get_device_name(bs), \"QED\", buf);\n return -ENOTSUP;\n if (!qed_is_cluster_size_valid(s->header.cluster_size)) {\n /* Round down file size to the last cluster */\n file_size = bdrv_getlength(bs->file);\n if (file_size < 0) {\n return file_size;\n s->file_size = qed_start_of_cluster(s, file_size);\n if (!qed_is_table_size_valid(s->header.table_size)) {\n if (!qed_is_image_size_valid(s->header.image_size,\n s->header.cluster_size,\n s->header.table_size)) {\n if (!qed_check_table_offset(s, s->header.l1_table_offset)) {\n s->table_nelems = (s->header.cluster_size * s->header.table_size) /\n sizeof(uint64_t);\n s->l2_shift = ffs(s->header.cluster_size) - 1;\n s->l2_mask = s->table_nelems - 1;\n s->l1_shift = s->l2_shift + ffs(s->table_nelems) - 1;\n if ((s->header.features & QED_F_BACKING_FILE)) {\n if ((uint64_t)s->header.backing_filename_offset +\n s->header.backing_filename_size >\n s->header.cluster_size * s->header.header_size) {\n ret = qed_read_string(bs->file, s->header.backing_filename_offset,\n s->header.backing_filename_size, bs->backing_file,\n sizeof(bs->backing_file));\n if (ret < 0) {\n return ret;\n if (s->header.features & QED_F_BACKING_FORMAT_NO_PROBE) {\n pstrcpy(bs->backing_format, sizeof(bs->backing_format), \"raw\");\n /* Reset unknown autoclear feature bits. This is a backwards\n * compatibility mechanism that allows images to be opened by older\n * programs, which \"knock out\" unknown feature bits. When an image is\n * opened by a newer program again it can detect that the autoclear\n * feature is no longer valid.\n */\n if ((s->header.autoclear_features & ~QED_AUTOCLEAR_FEATURE_MASK) != 0 &&\n !bdrv_is_read_only(bs->file) && !(flags & BDRV_O_INCOMING)) {\n s->header.autoclear_features &= QED_AUTOCLEAR_FEATURE_MASK;\n ret = qed_write_header_sync(s);\n if (ret) {\n return ret;\n /* From here on only known autoclear feature bits are valid */\n bdrv_flush(bs->file);\n s->l1_table = qed_alloc_table(s);\n qed_init_l2_cache(&s->l2_cache);\n ret = qed_read_l1_table_sync(s);\n if (ret) {\n goto out;\n /* If image was not closed cleanly, check consistency */\n if (!(flags & BDRV_O_CHECK) && (s->header.features & QED_F_NEED_CHECK)) {\n /* Read-only images cannot be fixed. There is no risk of corruption\n * since write operations are not possible. Therefore, allow\n * potentially inconsistent images to be opened read-only. This can\n * aid data recovery from an otherwise inconsistent image.\n */\n if (!bdrv_is_read_only(bs->file) &&\n !(flags & BDRV_O_INCOMING)) {\n BdrvCheckResult result = {0};\n ret = qed_check(s, &result, true);\n if (ret) {\n goto out;\n bdrv_qed_attach_aio_context(bs, bdrv_get_aio_context(bs));\nout:\n if (ret) {\n qed_free_l2_cache(&s->l2_cache);\n qemu_vfree(s->l1_table);\n return ret;", + "output": "1", + "index": 17827 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int vorbis_floor1_decode(vorbis_context *vc,\n\n vorbis_floor_data *vfu, float *vec)\n\n{\n\n vorbis_floor1 *vf = &vfu->t1;\n\n GetBitContext *gb = &vc->gb;\n\n uint16_t range_v[4] = { 256, 128, 86, 64 };\n\n unsigned range = range_v[vf->multiplier - 1];\n\n uint16_t floor1_Y[258];\n\n uint16_t floor1_Y_final[258];\n\n int floor1_flag[258];\n\n unsigned partition_class, cdim, cbits, csub, cval, offset, i, j;\n\n int book, adx, ady, dy, off, predicted, err;\n\n\n\n\n\n if (!get_bits1(gb)) // silence\n\n return 1;\n\n\n\n// Read values (or differences) for the floor's points\n\n\n\n floor1_Y[0] = get_bits(gb, ilog(range - 1));\n\n floor1_Y[1] = get_bits(gb, ilog(range - 1));\n\n\n\n av_dlog(NULL, \"floor 0 Y %d floor 1 Y %d \\n\", floor1_Y[0], floor1_Y[1]);\n\n\n\n offset = 2;\n\n for (i = 0; i < vf->partitions; ++i) {\n\n partition_class = vf->partition_class[i];\n\n cdim = vf->class_dimensions[partition_class];\n\n cbits = vf->class_subclasses[partition_class];\n\n csub = (1 << cbits) - 1;\n\n cval = 0;\n\n\n\n av_dlog(NULL, \"Cbits %u\\n\", cbits);\n\n\n\n if (cbits) // this reads all subclasses for this partition's class\n\n cval = get_vlc2(gb, vc->codebooks[vf->class_masterbook[partition_class]].vlc.table,\n\n vc->codebooks[vf->class_masterbook[partition_class]].nb_bits, 3);\n\n\n\n for (j = 0; j < cdim; ++j) {\n\n book = vf->subclass_books[partition_class][cval & csub];\n\n\n\n av_dlog(NULL, \"book %d Cbits %u cval %u bits:%d\\n\",\n\n book, cbits, cval, get_bits_count(gb));\n\n\n\n cval = cval >> cbits;\n\n if (book > -1) {\n\n floor1_Y[offset+j] = get_vlc2(gb, vc->codebooks[book].vlc.table,\n\n vc->codebooks[book].nb_bits, 3);\n\n } else {\n\n floor1_Y[offset+j] = 0;\n\n }\n\n\n\n av_dlog(NULL, \" floor(%d) = %d \\n\",\n\n vf->list[offset+j].x, floor1_Y[offset+j]);\n\n }\n\n offset+=cdim;\n\n }\n\n\n\n// Amplitude calculation from the differences\n\n\n\n floor1_flag[0] = 1;\n\n floor1_flag[1] = 1;\n\n floor1_Y_final[0] = floor1_Y[0];\n\n floor1_Y_final[1] = floor1_Y[1];\n\n\n\n for (i = 2; i < vf->x_list_dim; ++i) {\n\n unsigned val, highroom, lowroom, room, high_neigh_offs, low_neigh_offs;\n\n\n\n low_neigh_offs = vf->list[i].low;\n\n high_neigh_offs = vf->list[i].high;\n\n dy = floor1_Y_final[high_neigh_offs] - floor1_Y_final[low_neigh_offs]; // render_point begin\n\n adx = vf->list[high_neigh_offs].x - vf->list[low_neigh_offs].x;\n\n ady = FFABS(dy);\n\n err = ady * (vf->list[i].x - vf->list[low_neigh_offs].x);\n\n off = err / adx;\n\n if (dy < 0) {\n\n predicted = floor1_Y_final[low_neigh_offs] - off;\n\n } else {\n\n predicted = floor1_Y_final[low_neigh_offs] + off;\n\n } // render_point end\n\n\n\n val = floor1_Y[i];\n\n highroom = range-predicted;\n\n lowroom = predicted;\n\n if (highroom < lowroom) {\n\n room = highroom * 2;\n\n } else {\n\n room = lowroom * 2; // SPEC misspelling\n\n }\n\n if (val) {\n\n floor1_flag[low_neigh_offs] = 1;\n\n floor1_flag[high_neigh_offs] = 1;\n\n floor1_flag[i] = 1;\n\n if (val >= room) {\n\n if (highroom > lowroom) {\n\n floor1_Y_final[i] = av_clip_uint16(val - lowroom + predicted);\n\n } else {\n\n floor1_Y_final[i] = av_clip_uint16(predicted - val + highroom - 1);\n\n }\n\n } else {\n\n if (val & 1) {\n\n floor1_Y_final[i] = av_clip_uint16(predicted - (val + 1) / 2);\n\n } else {\n\n floor1_Y_final[i] = av_clip_uint16(predicted + val / 2);\n\n }\n\n }\n\n } else {\n\n floor1_flag[i] = 0;\n\n floor1_Y_final[i] = av_clip_uint16(predicted);\n\n }\n\n\n\n av_dlog(NULL, \" Decoded floor(%d) = %u / val %u\\n\",\n\n vf->list[i].x, floor1_Y_final[i], val);\n\n }\n\n\n\n// Curve synth - connect the calculated dots and convert from dB scale FIXME optimize ?\n\n\n\n ff_vorbis_floor1_render_list(vf->list, vf->x_list_dim, floor1_Y_final, floor1_flag, vf->multiplier, vec, vf->list[1].x);\n\n\n\n av_dlog(NULL, \" Floor decoded\\n\");\n\n\n\n return 0;\n\n}\n", + "output": "0", + "index": 8041 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void new_video_stream(AVFormatContext *oc)\n\n{\n\n AVStream *st;\n\n AVCodecContext *video_enc;\n\n enum CodecID codec_id;\n\n AVCodec *codec= NULL;\n\n\n\n st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);\n\n if (!st) {\n\n fprintf(stderr, \"Could not alloc stream\\n\");\n\n ffmpeg_exit(1);\n\n }\n\n\n\n output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);\n\n if(!video_stream_copy){\n\n if (video_codec_name) {\n\n codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,\n\n avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);\n\n codec = avcodec_find_encoder_by_name(video_codec_name);\n\n output_codecs[nb_output_codecs-1] = codec;\n\n } else {\n\n codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);\n\n codec = avcodec_find_encoder(codec_id);\n\n }\n\n }\n\n\n\n avcodec_get_context_defaults3(st->codec, codec);\n\n bitstream_filters[nb_output_files] =\n\n grow_array(bitstream_filters[nb_output_files],\n\n sizeof(*bitstream_filters[nb_output_files]),\n\n &nb_bitstream_filters[nb_output_files], oc->nb_streams);\n\n bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;\n\n video_bitstream_filters= NULL;\n\n\n\n avcodec_thread_init(st->codec, thread_count);\n\n\n\n video_enc = st->codec;\n\n\n\n if(video_codec_tag)\n\n video_enc->codec_tag= video_codec_tag;\n\n\n\n if( (video_global_header&1)\n\n || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){\n\n video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;\n\n avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;\n\n }\n\n if(video_global_header&2){\n\n video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;\n\n avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;\n\n }\n\n\n\n if (video_stream_copy) {\n\n st->stream_copy = 1;\n\n video_enc->codec_type = AVMEDIA_TYPE_VIDEO;\n\n video_enc->sample_aspect_ratio =\n\n st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);\n\n } else {\n\n const char *p;\n\n int i;\n\n AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};\n\n\n\n video_enc->codec_id = codec_id;\n\n set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);\n\n\n\n if (codec && codec->supported_framerates && !force_fps)\n\n fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];\n\n video_enc->time_base.den = fps.num;\n\n video_enc->time_base.num = fps.den;\n\n\n\n video_enc->width = frame_width;\n\n video_enc->height = frame_height;\n\n video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);\n\n video_enc->pix_fmt = frame_pix_fmt;\n\n st->sample_aspect_ratio = video_enc->sample_aspect_ratio;\n\n\n\n choose_pixel_fmt(st, codec);\n\n\n\n if (intra_only)\n\n video_enc->gop_size = 0;\n\n if (video_qscale || same_quality) {\n\n video_enc->flags |= CODEC_FLAG_QSCALE;\n\n video_enc->global_quality=\n\n st->quality = FF_QP2LAMBDA * video_qscale;\n\n }\n\n\n\n if(intra_matrix)\n\n video_enc->intra_matrix = intra_matrix;\n\n if(inter_matrix)\n\n video_enc->inter_matrix = inter_matrix;\n\n\n\n p= video_rc_override_string;\n\n for(i=0; p; i++){\n\n int start, end, q;\n\n int e=sscanf(p, \"%d,%d,%d\", &start, &end, &q);\n\n if(e!=3){\n\n fprintf(stderr, \"error parsing rc_override\\n\");\n\n ffmpeg_exit(1);\n\n }\n\n video_enc->rc_override=\n\n av_realloc(video_enc->rc_override,\n\n sizeof(RcOverride)*(i+1));\n\n video_enc->rc_override[i].start_frame= start;\n\n video_enc->rc_override[i].end_frame = end;\n\n if(q>0){\n\n video_enc->rc_override[i].qscale= q;\n\n video_enc->rc_override[i].quality_factor= 1.0;\n\n }\n\n else{\n\n video_enc->rc_override[i].qscale= 0;\n\n video_enc->rc_override[i].quality_factor= -q/100.0;\n\n }\n\n p= strchr(p, '/');\n\n if(p) p++;\n\n }\n\n video_enc->rc_override_count=i;\n\n if (!video_enc->rc_initial_buffer_occupancy)\n\n video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;\n\n video_enc->me_threshold= me_threshold;\n\n video_enc->intra_dc_precision= intra_dc_precision - 8;\n\n\n\n if (do_psnr)\n\n video_enc->flags|= CODEC_FLAG_PSNR;\n\n\n\n /* two pass mode */\n\n if (do_pass) {\n\n if (do_pass == 1) {\n\n video_enc->flags |= CODEC_FLAG_PASS1;\n\n } else {\n\n video_enc->flags |= CODEC_FLAG_PASS2;\n\n }\n\n }\n\n }\n\n if (video_language) {\n\n av_metadata_set2(&st->metadata, \"language\", video_language, 0);\n\n av_freep(&video_language);\n\n }\n\n\n\n /* reset some key parameters */\n\n video_disable = 0;\n\n av_freep(&video_codec_name);\n\n video_stream_copy = 0;\n\n frame_pix_fmt = PIX_FMT_NONE;\n\n}\n", + "output": "1", + "index": 19671 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int read_thread(void *arg)\n\n{\n\n VideoState *is = arg;\n\n AVFormatContext *ic = NULL;\n\n int err, i, ret;\n\n int st_index[AVMEDIA_TYPE_NB];\n\n AVPacket pkt1, *pkt = &pkt1;\n\n int64_t stream_start_time;\n\n int pkt_in_play_range = 0;\n\n AVDictionaryEntry *t;\n\n AVDictionary **opts;\n\n int orig_nb_streams;\n\n SDL_mutex *wait_mutex = SDL_CreateMutex();\n\n int scan_all_pmts_set = 0;\n\n int64_t pkt_ts;\n\n\n\n if (!wait_mutex) {\n\n av_log(NULL, AV_LOG_FATAL, \"SDL_CreateMutex(): %s\\n\", SDL_GetError());\n\n ret = AVERROR(ENOMEM);\n\n goto fail;\n\n }\n\n\n\n memset(st_index, -1, sizeof(st_index));\n\n is->last_video_stream = is->video_stream = -1;\n\n is->last_audio_stream = is->audio_stream = -1;\n\n is->last_subtitle_stream = is->subtitle_stream = -1;\n\n is->eof = 0;\n\n\n\n ic = avformat_alloc_context();\n\n if (!ic) {\n\n av_log(NULL, AV_LOG_FATAL, \"Could not allocate context.\\n\");\n\n ret = AVERROR(ENOMEM);\n\n goto fail;\n\n }\n\n ic->interrupt_callback.callback = decode_interrupt_cb;\n\n ic->interrupt_callback.opaque = is;\n\n if (!av_dict_get(format_opts, \"scan_all_pmts\", NULL, AV_DICT_MATCH_CASE)) {\n\n av_dict_set(&format_opts, \"scan_all_pmts\", \"1\", AV_DICT_DONT_OVERWRITE);\n\n scan_all_pmts_set = 1;\n\n }\n\n err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);\n\n if (err < 0) {\n\n print_error(is->filename, err);\n\n ret = -1;\n\n goto fail;\n\n }\n\n if (scan_all_pmts_set)\n\n av_dict_set(&format_opts, \"scan_all_pmts\", NULL, AV_DICT_MATCH_CASE);\n\n\n\n if ((t = av_dict_get(format_opts, \"\", NULL, AV_DICT_IGNORE_SUFFIX))) {\n\n av_log(NULL, AV_LOG_ERROR, \"Option %s not found.\\n\", t->key);\n\n ret = AVERROR_OPTION_NOT_FOUND;\n\n goto fail;\n\n }\n\n is->ic = ic;\n\n\n\n if (genpts)\n\n ic->flags |= AVFMT_FLAG_GENPTS;\n\n\n\n av_format_inject_global_side_data(ic);\n\n\n\n opts = setup_find_stream_info_opts(ic, codec_opts);\n\n orig_nb_streams = ic->nb_streams;\n\n\n\n err = avformat_find_stream_info(ic, opts);\n\n\n\n for (i = 0; i < orig_nb_streams; i++)\n\n av_dict_free(&opts[i]);\n\n av_freep(&opts);\n\n\n\n if (err < 0) {\n\n av_log(NULL, AV_LOG_WARNING,\n\n \"%s: could not find codec parameters\\n\", is->filename);\n\n ret = -1;\n\n goto fail;\n\n }\n\n\n\n if (ic->pb)\n\n ic->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use avio_feof() to test for the end\n\n\n\n if (seek_by_bytes < 0)\n\n seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT) && strcmp(\"ogg\", ic->iformat->name);\n\n\n\n is->max_frame_duration = (ic->iformat->flags & AVFMT_TS_DISCONT) ? 10.0 : 3600.0;\n\n\n\n if (!window_title && (t = av_dict_get(ic->metadata, \"title\", NULL, 0)))\n\n window_title = av_asprintf(\"%s - %s\", t->value, input_filename);\n\n\n\n /* if seeking requested, we execute it */\n\n if (start_time != AV_NOPTS_VALUE) {\n\n int64_t timestamp;\n\n\n\n timestamp = start_time;\n\n /* add the stream start time */\n\n if (ic->start_time != AV_NOPTS_VALUE)\n\n timestamp += ic->start_time;\n\n ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);\n\n if (ret < 0) {\n\n av_log(NULL, AV_LOG_WARNING, \"%s: could not seek to position %0.3f\\n\",\n\n is->filename, (double)timestamp / AV_TIME_BASE);\n\n }\n\n }\n\n\n\n is->realtime = is_realtime(ic);\n\n\n\n if (show_status)\n\n av_dump_format(ic, 0, is->filename, 0);\n\n\n\n for (i = 0; i < ic->nb_streams; i++) {\n\n AVStream *st = ic->streams[i];\n\n enum AVMediaType type = st->codec->codec_type;\n\n st->discard = AVDISCARD_ALL;\n\n if (wanted_stream_spec[type] && st_index[type] == -1)\n\n if (avformat_match_stream_specifier(ic, st, wanted_stream_spec[type]) > 0)\n\n st_index[type] = i;\n\n }\n\n for (i = 0; i < AVMEDIA_TYPE_NB; i++) {\n\n if (wanted_stream_spec[i] && st_index[i] == -1) {\n\n av_log(NULL, AV_LOG_ERROR, \"Stream specifier %s does not match any %s stream\\n\", wanted_stream_spec[i], av_get_media_type_string(i));\n\n st_index[i] = INT_MAX;\n\n }\n\n }\n\n\n\n if (!video_disable)\n\n st_index[AVMEDIA_TYPE_VIDEO] =\n\n av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,\n\n st_index[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);\n\n if (!audio_disable)\n\n st_index[AVMEDIA_TYPE_AUDIO] =\n\n av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,\n\n st_index[AVMEDIA_TYPE_AUDIO],\n\n st_index[AVMEDIA_TYPE_VIDEO],\n\n NULL, 0);\n\n if (!video_disable && !subtitle_disable)\n\n st_index[AVMEDIA_TYPE_SUBTITLE] =\n\n av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,\n\n st_index[AVMEDIA_TYPE_SUBTITLE],\n\n (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?\n\n st_index[AVMEDIA_TYPE_AUDIO] :\n\n st_index[AVMEDIA_TYPE_VIDEO]),\n\n NULL, 0);\n\n\n\n is->show_mode = show_mode;\n\n if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {\n\n AVStream *st = ic->streams[st_index[AVMEDIA_TYPE_VIDEO]];\n\n AVCodecContext *avctx = st->codec;\n\n AVRational sar = av_guess_sample_aspect_ratio(ic, st, NULL);\n\n if (avctx->width)\n\n set_default_window_size(avctx->width, avctx->height, sar);\n\n }\n\n\n\n /* open the streams */\n\n if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {\n\n stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);\n\n }\n\n\n\n ret = -1;\n\n if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {\n\n ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);\n\n }\n\n if (is->show_mode == SHOW_MODE_NONE)\n\n is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT;\n\n\n\n if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {\n\n stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);\n\n }\n\n\n\n if (is->video_stream < 0 && is->audio_stream < 0) {\n\n av_log(NULL, AV_LOG_FATAL, \"Failed to open file '%s' or configure filtergraph\\n\",\n\n is->filename);\n\n ret = -1;\n\n goto fail;\n\n }\n\n\n\n if (infinite_buffer < 0 && is->realtime)\n\n infinite_buffer = 1;\n\n\n\n for (;;) {\n\n if (is->abort_request)\n\n break;\n\n if (is->paused != is->last_paused) {\n\n is->last_paused = is->paused;\n\n if (is->paused)\n\n is->read_pause_return = av_read_pause(ic);\n\n else\n\n av_read_play(ic);\n\n }\n\n#if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL\n\n if (is->paused &&\n\n (!strcmp(ic->iformat->name, \"rtsp\") ||\n\n (ic->pb && !strncmp(input_filename, \"mmsh:\", 5)))) {\n\n /* wait 10 ms to avoid trying to get another packet */\n\n /* XXX: horrible */\n\n SDL_Delay(10);\n\n continue;\n\n }\n\n#endif\n\n if (is->seek_req) {\n\n int64_t seek_target = is->seek_pos;\n\n int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;\n\n int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;\n\n// FIXME the +-2 is due to rounding being not done in the correct direction in generation\n\n// of the seek_pos/seek_rel variables\n\n\n\n ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);\n\n if (ret < 0) {\n\n av_log(NULL, AV_LOG_ERROR,\n\n \"%s: error while seeking\\n\", is->ic->filename);\n\n } else {\n\n if (is->audio_stream >= 0) {\n\n packet_queue_flush(&is->audioq);\n\n packet_queue_put(&is->audioq, &flush_pkt);\n\n }\n\n if (is->subtitle_stream >= 0) {\n\n packet_queue_flush(&is->subtitleq);\n\n packet_queue_put(&is->subtitleq, &flush_pkt);\n\n }\n\n if (is->video_stream >= 0) {\n\n packet_queue_flush(&is->videoq);\n\n packet_queue_put(&is->videoq, &flush_pkt);\n\n }\n\n if (is->seek_flags & AVSEEK_FLAG_BYTE) {\n\n set_clock(&is->extclk, NAN, 0);\n\n } else {\n\n set_clock(&is->extclk, seek_target / (double)AV_TIME_BASE, 0);\n\n }\n\n }\n\n is->seek_req = 0;\n\n is->queue_attachments_req = 1;\n\n is->eof = 0;\n\n if (is->paused)\n\n step_to_next_frame(is);\n\n }\n\n if (is->queue_attachments_req) {\n\n if (is->video_st && is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC) {\n\n AVPacket copy;\n\n if ((ret = av_copy_packet(©, &is->video_st->attached_pic)) < 0)\n\n goto fail;\n\n packet_queue_put(&is->videoq, ©);\n\n packet_queue_put_nullpacket(&is->videoq, is->video_stream);\n\n }\n\n is->queue_attachments_req = 0;\n\n }\n\n\n\n /* if the queue are full, no need to read more */\n\n if (infinite_buffer<1 &&\n\n (is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE\n\n || ( (is->audioq .nb_packets > MIN_FRAMES || is->audio_stream < 0 || is->audioq.abort_request)\n\n && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream < 0 || is->videoq.abort_request\n\n || (is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC))\n\n && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream < 0 || is->subtitleq.abort_request)))) {\n\n /* wait 10 ms */\n\n SDL_LockMutex(wait_mutex);\n\n SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10);\n\n SDL_UnlockMutex(wait_mutex);\n\n continue;\n\n }\n\n if (!is->paused &&\n\n (!is->audio_st || (is->auddec.finished == is->audioq.serial && frame_queue_nb_remaining(&is->sampq) == 0)) &&\n\n (!is->video_st || (is->viddec.finished == is->videoq.serial && frame_queue_nb_remaining(&is->pictq) == 0))) {\n\n if (loop != 1 && (!loop || --loop)) {\n\n stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);\n\n } else if (autoexit) {\n\n ret = AVERROR_EOF;\n\n goto fail;\n\n }\n\n }\n\n ret = av_read_frame(ic, pkt);\n\n if (ret < 0) {\n\n if ((ret == AVERROR_EOF || avio_feof(ic->pb)) && !is->eof) {\n\n if (is->video_stream >= 0)\n\n packet_queue_put_nullpacket(&is->videoq, is->video_stream);\n\n if (is->audio_stream >= 0)\n\n packet_queue_put_nullpacket(&is->audioq, is->audio_stream);\n\n if (is->subtitle_stream >= 0)\n\n packet_queue_put_nullpacket(&is->subtitleq, is->subtitle_stream);\n\n is->eof = 1;\n\n }\n\n if (ic->pb && ic->pb->error)\n\n break;\n\n SDL_LockMutex(wait_mutex);\n\n SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10);\n\n SDL_UnlockMutex(wait_mutex);\n\n continue;\n\n } else {\n\n is->eof = 0;\n\n }\n\n /* check if packet is in play range specified by user, then queue, otherwise discard */\n\n stream_start_time = ic->streams[pkt->stream_index]->start_time;\n\n pkt_ts = pkt->pts == AV_NOPTS_VALUE ? pkt->dts : pkt->pts;\n\n pkt_in_play_range = duration == AV_NOPTS_VALUE ||\n\n (pkt_ts - (stream_start_time != AV_NOPTS_VALUE ? stream_start_time : 0)) *\n\n av_q2d(ic->streams[pkt->stream_index]->time_base) -\n\n (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000\n\n <= ((double)duration / 1000000);\n\n if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {\n\n packet_queue_put(&is->audioq, pkt);\n\n } else if (pkt->stream_index == is->video_stream && pkt_in_play_range\n\n && !(is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC)) {\n\n packet_queue_put(&is->videoq, pkt);\n\n } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {\n\n packet_queue_put(&is->subtitleq, pkt);\n\n } else {\n\n av_free_packet(pkt);\n\n }\n\n }\n\n /* wait until the end */\n\n while (!is->abort_request) {\n\n SDL_Delay(100);\n\n }\n\n\n\n ret = 0;\n\n fail:\n\n /* close each stream */\n\n if (is->audio_stream >= 0)\n\n stream_component_close(is, is->audio_stream);\n\n if (is->video_stream >= 0)\n\n stream_component_close(is, is->video_stream);\n\n if (is->subtitle_stream >= 0)\n\n stream_component_close(is, is->subtitle_stream);\n\n if (ic) {\n\n avformat_close_input(&ic);\n\n is->ic = NULL;\n\n }\n\n\n\n if (ret != 0) {\n\n SDL_Event event;\n\n\n\n event.type = FF_QUIT_EVENT;\n\n event.user.data1 = is;\n\n SDL_PushEvent(&event);\n\n }\n\n SDL_DestroyMutex(wait_mutex);\n\n return 0;\n\n}\n", + "output": "1", + "index": 21141 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void pflash_cfi01_realize(DeviceState *dev, Error **errp)\n{\n pflash_t *pfl = CFI_PFLASH01(dev);\n uint64_t total_len;\n int ret;\n uint64_t blocks_per_device, device_len;\n int num_devices;\n Error *local_err = NULL;\n total_len = pfl->sector_len * pfl->nb_blocs;\n /* These are only used to expose the parameters of each device\n * in the cfi_table[].\n */\n num_devices = pfl->device_width ? (pfl->bank_width / pfl->device_width) : 1;\n blocks_per_device = pfl->nb_blocs / num_devices;\n device_len = pfl->sector_len * blocks_per_device;\n /* XXX: to be fixed */\n#if 0\n if (total_len != (8 * 1024 * 1024) && total_len != (16 * 1024 * 1024) &&\n total_len != (32 * 1024 * 1024) && total_len != (64 * 1024 * 1024))\n return NULL;\n#endif\n memory_region_init_rom_device(\n &pfl->mem, OBJECT(dev),\n &pflash_cfi01_ops,\n pfl,\n pfl->name, total_len, &local_err);\n if (local_err) {\n error_propagate(errp, local_err);\n vmstate_register_ram(&pfl->mem, DEVICE(pfl));\n pfl->storage = memory_region_get_ram_ptr(&pfl->mem);\n sysbus_init_mmio(SYS_BUS_DEVICE(dev), &pfl->mem);\n if (pfl->blk) {\n /* read the initial flash content */\n ret = blk_pread(pfl->blk, 0, pfl->storage, total_len);\n if (ret < 0) {\n vmstate_unregister_ram(&pfl->mem, DEVICE(pfl));\n error_setg(errp, \"failed to read the initial flash content\");\n if (pfl->blk) {\n pfl->ro = blk_is_read_only(pfl->blk);\n } else {\n pfl->ro = 0;\n /* Default to devices being used at their maximum device width. This was\n * assumed before the device_width support was added.\n */\n if (!pfl->max_device_width) {\n pfl->max_device_width = pfl->device_width;\n pfl->timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, pflash_timer, pfl);\n pfl->wcycle = 0;\n pfl->cmd = 0;\n pfl->status = 0;\n /* Hardcoded CFI table */\n pfl->cfi_len = 0x52;\n /* Standard \"QRY\" string */\n pfl->cfi_table[0x10] = 'Q';\n pfl->cfi_table[0x11] = 'R';\n pfl->cfi_table[0x12] = 'Y';\n /* Command set (Intel) */\n pfl->cfi_table[0x13] = 0x01;\n pfl->cfi_table[0x14] = 0x00;\n /* Primary extended table address (none) */\n pfl->cfi_table[0x15] = 0x31;\n pfl->cfi_table[0x16] = 0x00;\n /* Alternate command set (none) */\n pfl->cfi_table[0x17] = 0x00;\n pfl->cfi_table[0x18] = 0x00;\n /* Alternate extended table (none) */\n pfl->cfi_table[0x19] = 0x00;\n pfl->cfi_table[0x1A] = 0x00;\n /* Vcc min */\n pfl->cfi_table[0x1B] = 0x45;\n /* Vcc max */\n pfl->cfi_table[0x1C] = 0x55;\n /* Vpp min (no Vpp pin) */\n pfl->cfi_table[0x1D] = 0x00;\n /* Vpp max (no Vpp pin) */\n pfl->cfi_table[0x1E] = 0x00;\n /* Reserved */\n pfl->cfi_table[0x1F] = 0x07;\n /* Timeout for min size buffer write */\n pfl->cfi_table[0x20] = 0x07;\n /* Typical timeout for block erase */\n pfl->cfi_table[0x21] = 0x0a;\n /* Typical timeout for full chip erase (4096 ms) */\n pfl->cfi_table[0x22] = 0x00;\n /* Reserved */\n pfl->cfi_table[0x23] = 0x04;\n /* Max timeout for buffer write */\n pfl->cfi_table[0x24] = 0x04;\n /* Max timeout for block erase */\n pfl->cfi_table[0x25] = 0x04;\n /* Max timeout for chip erase */\n pfl->cfi_table[0x26] = 0x00;\n /* Device size */\n pfl->cfi_table[0x27] = ctz32(device_len); /* + 1; */\n /* Flash device interface (8 & 16 bits) */\n pfl->cfi_table[0x28] = 0x02;\n pfl->cfi_table[0x29] = 0x00;\n /* Max number of bytes in multi-bytes write */\n if (pfl->bank_width == 1) {\n pfl->cfi_table[0x2A] = 0x08;\n } else {\n pfl->cfi_table[0x2A] = 0x0B;\n pfl->writeblock_size = 1 << pfl->cfi_table[0x2A];\n pfl->cfi_table[0x2B] = 0x00;\n /* Number of erase block regions (uniform) */\n pfl->cfi_table[0x2C] = 0x01;\n /* Erase block region 1 */\n pfl->cfi_table[0x2D] = blocks_per_device - 1;\n pfl->cfi_table[0x2E] = (blocks_per_device - 1) >> 8;\n pfl->cfi_table[0x2F] = pfl->sector_len >> 8;\n pfl->cfi_table[0x30] = pfl->sector_len >> 16;\n /* Extended */\n pfl->cfi_table[0x31] = 'P';\n pfl->cfi_table[0x32] = 'R';\n pfl->cfi_table[0x33] = 'I';\n pfl->cfi_table[0x34] = '1';\n pfl->cfi_table[0x35] = '0';\n pfl->cfi_table[0x36] = 0x00;\n pfl->cfi_table[0x37] = 0x00;\n pfl->cfi_table[0x38] = 0x00;\n pfl->cfi_table[0x39] = 0x00;\n pfl->cfi_table[0x3a] = 0x00;\n pfl->cfi_table[0x3b] = 0x00;\n pfl->cfi_table[0x3c] = 0x00;\n pfl->cfi_table[0x3f] = 0x01; /* Number of protection fields */", + "output": "1", + "index": 17988 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void build_pci_bus_end(PCIBus *bus, void *bus_state)\n\n{\n\n AcpiBuildPciBusHotplugState *child = bus_state;\n\n AcpiBuildPciBusHotplugState *parent = child->parent;\n\n GArray *bus_table = build_alloc_array();\n\n DECLARE_BITMAP(slot_hotplug_enable, PCI_SLOT_MAX);\n\n DECLARE_BITMAP(slot_device_present, PCI_SLOT_MAX);\n\n DECLARE_BITMAP(slot_device_system, PCI_SLOT_MAX);\n\n DECLARE_BITMAP(slot_device_vga, PCI_SLOT_MAX);\n\n DECLARE_BITMAP(slot_device_qxl, PCI_SLOT_MAX);\n\n uint8_t op;\n\n int i;\n\n QObject *bsel;\n\n GArray *method;\n\n bool bus_hotplug_support = false;\n\n\n\n /*\n\n * Skip bridge subtree creation if bridge hotplug is disabled\n\n * to make acpi tables compatible with legacy machine types.\n\n * Skip creation for hotplugged bridges as well.\n\n */\n\n if (bus->parent_dev && (!child->pcihp_bridge_en ||\n\n DEVICE(bus->parent_dev)->hotplugged)) {\n\n build_free_array(bus_table);\n\n build_pci_bus_state_cleanup(child);\n\n g_free(child);\n\n return;\n\n }\n\n\n\n if (bus->parent_dev) {\n\n op = 0x82; /* DeviceOp */\n\n build_append_namestring(bus_table, \"S%.02X\",\n\n bus->parent_dev->devfn);\n\n build_append_byte(bus_table, 0x08); /* NameOp */\n\n build_append_namestring(bus_table, \"_SUN\");\n\n build_append_int(bus_table, PCI_SLOT(bus->parent_dev->devfn));\n\n build_append_byte(bus_table, 0x08); /* NameOp */\n\n build_append_namestring(bus_table, \"_ADR\");\n\n build_append_int(bus_table, (PCI_SLOT(bus->parent_dev->devfn) << 16) |\n\n PCI_FUNC(bus->parent_dev->devfn));\n\n } else {\n\n op = 0x10; /* ScopeOp */;\n\n build_append_namestring(bus_table, \"PCI0\");\n\n }\n\n\n\n bsel = object_property_get_qobject(OBJECT(bus), ACPI_PCIHP_PROP_BSEL, NULL);\n\n if (bsel) {\n\n build_append_byte(bus_table, 0x08); /* NameOp */\n\n build_append_namestring(bus_table, \"BSEL\");\n\n build_append_int(bus_table, qint_get_int(qobject_to_qint(bsel)));\n\n memset(slot_hotplug_enable, 0xff, sizeof slot_hotplug_enable);\n\n } else {\n\n /* No bsel - no slots are hot-pluggable */\n\n memset(slot_hotplug_enable, 0x00, sizeof slot_hotplug_enable);\n\n }\n\n\n\n memset(slot_device_present, 0x00, sizeof slot_device_present);\n\n memset(slot_device_system, 0x00, sizeof slot_device_present);\n\n memset(slot_device_vga, 0x00, sizeof slot_device_vga);\n\n memset(slot_device_qxl, 0x00, sizeof slot_device_qxl);\n\n\n\n for (i = 0; i < ARRAY_SIZE(bus->devices); i += PCI_FUNC_MAX) {\n\n DeviceClass *dc;\n\n PCIDeviceClass *pc;\n\n PCIDevice *pdev = bus->devices[i];\n\n int slot = PCI_SLOT(i);\n\n bool bridge_in_acpi;\n\n\n\n if (!pdev) {\n\n continue;\n\n }\n\n\n\n set_bit(slot, slot_device_present);\n\n pc = PCI_DEVICE_GET_CLASS(pdev);\n\n dc = DEVICE_GET_CLASS(pdev);\n\n\n\n /* When hotplug for bridges is enabled, bridges are\n\n * described in ACPI separately (see build_pci_bus_end).\n\n * In this case they aren't themselves hot-pluggable.\n\n * Hotplugged bridges *are* hot-pluggable.\n\n */\n\n bridge_in_acpi = pc->is_bridge && child->pcihp_bridge_en &&\n\n !DEVICE(pdev)->hotplugged;\n\n\n\n if (pc->class_id == PCI_CLASS_BRIDGE_ISA || bridge_in_acpi) {\n\n set_bit(slot, slot_device_system);\n\n }\n\n\n\n if (pc->class_id == PCI_CLASS_DISPLAY_VGA) {\n\n set_bit(slot, slot_device_vga);\n\n\n\n if (object_dynamic_cast(OBJECT(pdev), \"qxl-vga\")) {\n\n set_bit(slot, slot_device_qxl);\n\n }\n\n }\n\n\n\n if (!dc->hotpluggable || bridge_in_acpi) {\n\n clear_bit(slot, slot_hotplug_enable);\n\n }\n\n }\n\n\n\n /* Append Device object for each slot */\n\n for (i = 0; i < PCI_SLOT_MAX; i++) {\n\n bool can_eject = test_bit(i, slot_hotplug_enable);\n\n bool present = test_bit(i, slot_device_present);\n\n bool vga = test_bit(i, slot_device_vga);\n\n bool qxl = test_bit(i, slot_device_qxl);\n\n bool system = test_bit(i, slot_device_system);\n\n if (can_eject) {\n\n void *pcihp = acpi_data_push(bus_table,\n\n ACPI_PCIHP_SIZEOF);\n\n memcpy(pcihp, ACPI_PCIHP_AML, ACPI_PCIHP_SIZEOF);\n\n patch_pcihp(i, pcihp);\n\n bus_hotplug_support = true;\n\n } else if (qxl) {\n\n void *pcihp = acpi_data_push(bus_table,\n\n ACPI_PCIQXL_SIZEOF);\n\n memcpy(pcihp, ACPI_PCIQXL_AML, ACPI_PCIQXL_SIZEOF);\n\n patch_pciqxl(i, pcihp);\n\n } else if (vga) {\n\n void *pcihp = acpi_data_push(bus_table,\n\n ACPI_PCIVGA_SIZEOF);\n\n memcpy(pcihp, ACPI_PCIVGA_AML, ACPI_PCIVGA_SIZEOF);\n\n patch_pcivga(i, pcihp);\n\n } else if (system) {\n\n /* Nothing to do: system devices are in DSDT or in SSDT above. */\n\n } else if (present) {\n\n void *pcihp = acpi_data_push(bus_table,\n\n ACPI_PCINOHP_SIZEOF);\n\n memcpy(pcihp, ACPI_PCINOHP_AML, ACPI_PCINOHP_SIZEOF);\n\n patch_pcinohp(i, pcihp);\n\n }\n\n }\n\n\n\n if (bsel) {\n\n method = build_alloc_method(\"DVNT\", 2);\n\n\n\n for (i = 0; i < PCI_SLOT_MAX; i++) {\n\n GArray *notify;\n\n uint8_t op;\n\n\n\n if (!test_bit(i, slot_hotplug_enable)) {\n\n continue;\n\n }\n\n\n\n notify = build_alloc_array();\n\n op = 0xA0; /* IfOp */\n\n\n\n build_append_byte(notify, 0x7B); /* AndOp */\n\n build_append_byte(notify, 0x68); /* Arg0Op */\n\n build_append_int(notify, 0x1U << i);\n\n build_append_byte(notify, 0x00); /* NullName */\n\n build_append_byte(notify, 0x86); /* NotifyOp */\n\n build_append_namestring(notify, \"S%.02X\", PCI_DEVFN(i, 0));\n\n build_append_byte(notify, 0x69); /* Arg1Op */\n\n\n\n /* Pack it up */\n\n build_package(notify, op);\n\n\n\n build_append_array(method, notify);\n\n\n\n build_free_array(notify);\n\n }\n\n\n\n build_append_and_cleanup_method(bus_table, method);\n\n }\n\n\n\n /* Append PCNT method to notify about events on local and child buses.\n\n * Add unconditionally for root since DSDT expects it.\n\n */\n\n if (bus_hotplug_support || child->notify_table->len || !bus->parent_dev) {\n\n method = build_alloc_method(\"PCNT\", 0);\n\n\n\n /* If bus supports hotplug select it and notify about local events */\n\n if (bsel) {\n\n build_append_byte(method, 0x70); /* StoreOp */\n\n build_append_int(method, qint_get_int(qobject_to_qint(bsel)));\n\n build_append_namestring(method, \"BNUM\");\n\n build_append_namestring(method, \"DVNT\");\n\n build_append_namestring(method, \"PCIU\");\n\n build_append_int(method, 1); /* Device Check */\n\n build_append_namestring(method, \"DVNT\");\n\n build_append_namestring(method, \"PCID\");\n\n build_append_int(method, 3); /* Eject Request */\n\n }\n\n\n\n /* Notify about child bus events in any case */\n\n build_append_array(method, child->notify_table);\n\n\n\n build_append_and_cleanup_method(bus_table, method);\n\n\n\n /* Append description of child buses */\n\n build_append_array(bus_table, child->device_table);\n\n\n\n /* Pack it up */\n\n if (bus->parent_dev) {\n\n build_extop_package(bus_table, op);\n\n } else {\n\n build_package(bus_table, op);\n\n }\n\n\n\n /* Append our bus description to parent table */\n\n build_append_array(parent->device_table, bus_table);\n\n\n\n /* Also tell parent how to notify us, invoking PCNT method.\n\n * At the moment this is not needed for root as we have a single root.\n\n */\n\n if (bus->parent_dev) {\n\n build_append_namestring(parent->notify_table, \"^PCNT.S%.02X\",\n\n bus->parent_dev->devfn);\n\n }\n\n }\n\n\n\n qobject_decref(bsel);\n\n build_free_array(bus_table);\n\n build_pci_bus_state_cleanup(child);\n\n g_free(child);\n\n}\n", + "output": "0", + "index": 19271 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void search_for_pns(AACEncContext *s, AVCodecContext *avctx, SingleChannelElement *sce)\n\n{\n\n FFPsyBand *band;\n\n int w, g, w2, i;\n\n float *PNS = &s->scoefs[0*128], *PNS34 = &s->scoefs[1*128];\n\n float *NOR34 = &s->scoefs[3*128];\n\n const float lambda = s->lambda;\n\n const float freq_mult = avctx->sample_rate/(1024.0f/sce->ics.num_windows)/2.0f;\n\n const float thr_mult = NOISE_LAMBDA_REPLACE*(100.0f/lambda);\n\n const float spread_threshold = NOISE_SPREAD_THRESHOLD*(lambda/100.f);\n\n\n\n if (sce->ics.window_sequence[0] == EIGHT_SHORT_SEQUENCE)\n\n return;\n\n\n\n for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {\n\n for (g = 0; g < sce->ics.num_swb; g++) {\n\n int noise_sfi;\n\n float dist1 = 0.0f, dist2 = 0.0f, noise_amp;\n\n float pns_energy = 0.0f, energy_ratio, dist_thresh;\n\n float sfb_energy = 0.0f, threshold = 0.0f, spread = 0.0f;\n\n const int start = sce->ics.swb_offset[w*16+g];\n\n const float freq = start*freq_mult;\n\n const float freq_boost = FFMAX(0.88f*freq/NOISE_LOW_LIMIT, 1.0f);\n\n if (freq < NOISE_LOW_LIMIT || avctx->cutoff && freq >= avctx->cutoff)\n\n continue;\n\n for (w2 = 0; w2 < sce->ics.group_len[w]; w2++) {\n\n band = &s->psy.ch[s->cur_channel].psy_bands[(w+w2)*16+g];\n\n sfb_energy += band->energy;\n\n spread += band->spread;\n\n threshold += band->threshold;\n\n }\n\n\n\n /* Ramps down at ~8000Hz and loosens the dist threshold */\n\n dist_thresh = FFMIN(2.5f*NOISE_LOW_LIMIT/freq, 1.27f);\n\n\n\n if (sce->zeroes[w*16+g] || spread < spread_threshold ||\n\n sfb_energy > threshold*thr_mult*freq_boost) {\n\n sce->pns_ener[w*16+g] = sfb_energy;\n\n continue;\n\n }\n\n\n\n noise_sfi = av_clip(roundf(log2f(sfb_energy)*2), -100, 155); /* Quantize */\n\n noise_amp = -ff_aac_pow2sf_tab[noise_sfi + POW_SF2_ZERO]; /* Dequantize */\n\n for (w2 = 0; w2 < sce->ics.group_len[w]; w2++) {\n\n float band_energy, scale;\n\n const int start_c = sce->ics.swb_offset[(w+w2)*16+g];\n\n band = &s->psy.ch[s->cur_channel].psy_bands[(w+w2)*16+g];\n\n for (i = 0; i < sce->ics.swb_sizes[g]; i++)\n\n PNS[i] = s->random_state = lcg_random(s->random_state);\n\n band_energy = s->fdsp->scalarproduct_float(PNS, PNS, sce->ics.swb_sizes[g]);\n\n scale = noise_amp/sqrtf(band_energy);\n\n s->fdsp->vector_fmul_scalar(PNS, PNS, scale, sce->ics.swb_sizes[g]);\n\n pns_energy += s->fdsp->scalarproduct_float(PNS, PNS, sce->ics.swb_sizes[g]);\n\n abs_pow34_v(NOR34, &sce->coeffs[start_c], sce->ics.swb_sizes[g]);\n\n abs_pow34_v(PNS34, PNS, sce->ics.swb_sizes[g]);\n\n dist1 += quantize_band_cost(s, &sce->coeffs[start_c],\n\n NOR34,\n\n sce->ics.swb_sizes[g],\n\n sce->sf_idx[(w+w2)*16+g],\n\n sce->band_alt[(w+w2)*16+g],\n\n lambda/band->threshold, INFINITY, NULL, 0);\n\n dist2 += quantize_band_cost(s, PNS,\n\n PNS34,\n\n sce->ics.swb_sizes[g],\n\n noise_sfi,\n\n NOISE_BT,\n\n lambda/band->threshold, INFINITY, NULL, 0);\n\n }\n\n energy_ratio = sfb_energy/pns_energy; /* Compensates for quantization error */\n\n sce->pns_ener[w*16+g] = energy_ratio*sfb_energy;\n\n if (energy_ratio > 0.85f && energy_ratio < 1.25f && dist1/dist2 > dist_thresh) {\n\n sce->band_type[w*16+g] = NOISE_BT;\n\n sce->zeroes[w*16+g] = 0;\n\n if (sce->band_type[w*16+g-1] != NOISE_BT && /* Prevent holes */\n\n sce->band_type[w*16+g-2] == NOISE_BT) {\n\n sce->band_type[w*16+g-1] = NOISE_BT;\n\n sce->zeroes[w*16+g-1] = 0;\n\n }\n\n }\n\n }\n\n }\n\n}\n", + "output": "1", + "index": 11697 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int get_siz(Jpeg2000DecoderContext *s)\n\n{\n\n int i;\n\n\n\n if (bytestream2_get_bytes_left(&s->g) < 36)\n\n return AVERROR(EINVAL);\n\n\n\n s->avctx->profile = bytestream2_get_be16u(&s->g); // Rsiz\n\n s->width = bytestream2_get_be32u(&s->g); // Width\n\n s->height = bytestream2_get_be32u(&s->g); // Height\n\n s->image_offset_x = bytestream2_get_be32u(&s->g); // X0Siz\n\n s->image_offset_y = bytestream2_get_be32u(&s->g); // Y0Siz\n\n s->tile_width = bytestream2_get_be32u(&s->g); // XTSiz\n\n s->tile_height = bytestream2_get_be32u(&s->g); // YTSiz\n\n s->tile_offset_x = bytestream2_get_be32u(&s->g); // XT0Siz\n\n s->tile_offset_y = bytestream2_get_be32u(&s->g); // YT0Siz\n\n s->ncomponents = bytestream2_get_be16u(&s->g); // CSiz\n\n\n\n if (s->ncomponents <= 0 || s->ncomponents > 4) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"unsupported/invalid ncomponents: %d\\n\", s->ncomponents);\n\n return AVERROR(EINVAL);\n\n }\n\n if (s->tile_width<=0 || s->tile_height<=0)\n\n return AVERROR(EINVAL);\n\n\n\n if (bytestream2_get_bytes_left(&s->g) < 3 * s->ncomponents)\n\n return AVERROR(EINVAL);\n\n\n\n for (i = 0; i < s->ncomponents; i++) { // Ssiz_i XRsiz_i, YRsiz_i\n\n uint8_t x = bytestream2_get_byteu(&s->g);\n\n s->cbps[i] = (x & 0x7f) + 1;\n\n s->precision = FFMAX(s->cbps[i], s->precision);\n\n s->sgnd[i] = !!(x & 0x80);\n\n s->cdx[i] = bytestream2_get_byteu(&s->g);\n\n s->cdy[i] = bytestream2_get_byteu(&s->g);\n\n if (s->cdx[i] != 1 || s->cdy[i] != 1) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"unsupported/ CDxy values %d %d for component %d\\n\", s->cdx[i], s->cdy[i], i);\n\n if (!s->cdx[i] || !s->cdy[i])\n\n return AVERROR_INVALIDDATA;\n\n }\n\n }\n\n\n\n s->numXtiles = ff_jpeg2000_ceildiv(s->width - s->tile_offset_x, s->tile_width);\n\n s->numYtiles = ff_jpeg2000_ceildiv(s->height - s->tile_offset_y, s->tile_height);\n\n\n\n if (s->numXtiles * (uint64_t)s->numYtiles > INT_MAX/sizeof(Jpeg2000Tile))\n\n return AVERROR(EINVAL);\n\n\n\n s->tile = av_mallocz(s->numXtiles * s->numYtiles * sizeof(*s->tile));\n\n if (!s->tile)\n\n return AVERROR(ENOMEM);\n\n\n\n for (i = 0; i < s->numXtiles * s->numYtiles; i++) {\n\n Jpeg2000Tile *tile = s->tile + i;\n\n\n\n tile->comp = av_mallocz(s->ncomponents * sizeof(*tile->comp));\n\n if (!tile->comp)\n\n return AVERROR(ENOMEM);\n\n }\n\n\n\n /* compute image size with reduction factor */\n\n s->avctx->width = ff_jpeg2000_ceildivpow2(s->width - s->image_offset_x,\n\n s->reduction_factor);\n\n s->avctx->height = ff_jpeg2000_ceildivpow2(s->height - s->image_offset_y,\n\n s->reduction_factor);\n\n\n\n switch(s->ncomponents) {\n\n case 1:\n\n if (s->precision > 8)\n\n s->avctx->pix_fmt = AV_PIX_FMT_GRAY16;\n\n else\n\n s->avctx->pix_fmt = AV_PIX_FMT_GRAY8;\n\n break;\n\n case 3:\n\n switch (s->avctx->profile) {\n\n case FF_PROFILE_JPEG2000_DCINEMA_2K:\n\n case FF_PROFILE_JPEG2000_DCINEMA_4K:\n\n /* XYZ color-space for digital cinema profiles */\n\n s->avctx->pix_fmt = AV_PIX_FMT_XYZ12;\n\n break;\n\n default:\n\n if (s->precision > 8)\n\n s->avctx->pix_fmt = AV_PIX_FMT_RGB48;\n\n else\n\n s->avctx->pix_fmt = AV_PIX_FMT_RGB24;\n\n break;\n\n }\n\n break;\n\n case 4:\n\n s->avctx->pix_fmt = AV_PIX_FMT_RGBA;\n\n break;\n\n default:\n\n /* pixel format can not be identified */\n\n s->avctx->pix_fmt = AV_PIX_FMT_NONE;\n\n break;\n\n }\n\n return 0;\n\n}\n", + "output": "0", + "index": 5783 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void do_transmit_packets(dp8393xState *s)\n\n{\n\n uint16_t data[12];\n\n int width, size;\n\n int tx_len, len;\n\n uint16_t i;\n\n\n\n width = (s->regs[SONIC_DCR] & SONIC_DCR_DW) ? 2 : 1;\n\n\n\n while (1) {\n\n /* Read memory */\n\n DPRINTF(\"Transmit packet at %08x\\n\",\n\n (s->regs[SONIC_UTDA] << 16) | s->regs[SONIC_CTDA]);\n\n size = sizeof(uint16_t) * 6 * width;\n\n s->regs[SONIC_TTDA] = s->regs[SONIC_CTDA];\n\n s->memory_rw(s->mem_opaque,\n\n ((s->regs[SONIC_UTDA] << 16) | s->regs[SONIC_TTDA]) + sizeof(uint16_t) * width,\n\n (uint8_t *)data, size, 0);\n\n tx_len = 0;\n\n\n\n /* Update registers */\n\n s->regs[SONIC_TCR] = data[0 * width] & 0xf000;\n\n s->regs[SONIC_TPS] = data[1 * width];\n\n s->regs[SONIC_TFC] = data[2 * width];\n\n s->regs[SONIC_TSA0] = data[3 * width];\n\n s->regs[SONIC_TSA1] = data[4 * width];\n\n s->regs[SONIC_TFS] = data[5 * width];\n\n\n\n /* Handle programmable interrupt */\n\n if (s->regs[SONIC_TCR] & SONIC_TCR_PINT) {\n\n s->regs[SONIC_ISR] |= SONIC_ISR_PINT;\n\n } else {\n\n s->regs[SONIC_ISR] &= ~SONIC_ISR_PINT;\n\n }\n\n\n\n for (i = 0; i < s->regs[SONIC_TFC]; ) {\n\n /* Append fragment */\n\n len = s->regs[SONIC_TFS];\n\n if (tx_len + len > sizeof(s->tx_buffer)) {\n\n len = sizeof(s->tx_buffer) - tx_len;\n\n }\n\n s->memory_rw(s->mem_opaque,\n\n (s->regs[SONIC_TSA1] << 16) | s->regs[SONIC_TSA0],\n\n &s->tx_buffer[tx_len], len, 0);\n\n tx_len += len;\n\n\n\n i++;\n\n if (i != s->regs[SONIC_TFC]) {\n\n /* Read next fragment details */\n\n size = sizeof(uint16_t) * 3 * width;\n\n s->memory_rw(s->mem_opaque,\n\n ((s->regs[SONIC_UTDA] << 16) | s->regs[SONIC_TTDA]) + sizeof(uint16_t) * (4 + 3 * i) * width,\n\n (uint8_t *)data, size, 0);\n\n s->regs[SONIC_TSA0] = data[0 * width];\n\n s->regs[SONIC_TSA1] = data[1 * width];\n\n s->regs[SONIC_TFS] = data[2 * width];\n\n }\n\n }\n\n\n\n /* Handle Ethernet checksum */\n\n if (!(s->regs[SONIC_TCR] & SONIC_TCR_CRCI)) {\n\n /* Don't append FCS there, to look like slirp packets\n\n * which don't have one */\n\n } else {\n\n /* Remove existing FCS */\n\n tx_len -= 4;\n\n }\n\n\n\n if (s->regs[SONIC_RCR] & (SONIC_RCR_LB1 | SONIC_RCR_LB0)) {\n\n /* Loopback */\n\n s->regs[SONIC_TCR] |= SONIC_TCR_CRSL;\n\n if (s->vc->fd_can_read(s)) {\n\n s->loopback_packet = 1;\n\n s->vc->receive(s, s->tx_buffer, tx_len);\n\n }\n\n } else {\n\n /* Transmit packet */\n\n qemu_send_packet(s->vc, s->tx_buffer, tx_len);\n\n }\n\n s->regs[SONIC_TCR] |= SONIC_TCR_PTX;\n\n\n\n /* Write status */\n\n data[0 * width] = s->regs[SONIC_TCR] & 0x0fff; /* status */\n\n size = sizeof(uint16_t) * width;\n\n s->memory_rw(s->mem_opaque,\n\n (s->regs[SONIC_UTDA] << 16) | s->regs[SONIC_TTDA],\n\n (uint8_t *)data, size, 1);\n\n\n\n if (!(s->regs[SONIC_CR] & SONIC_CR_HTX)) {\n\n /* Read footer of packet */\n\n size = sizeof(uint16_t) * width;\n\n s->memory_rw(s->mem_opaque,\n\n ((s->regs[SONIC_UTDA] << 16) | s->regs[SONIC_TTDA]) + sizeof(uint16_t) * (4 + 3 * s->regs[SONIC_TFC]) * width,\n\n (uint8_t *)data, size, 0);\n\n s->regs[SONIC_CTDA] = data[0 * width] & ~0x1;\n\n if (data[0 * width] & 0x1) {\n\n /* EOL detected */\n\n break;\n\n }\n\n }\n\n }\n\n\n\n /* Done */\n\n s->regs[SONIC_CR] &= ~SONIC_CR_TXP;\n\n s->regs[SONIC_ISR] |= SONIC_ISR_TXDN;\n\n dp8393x_update_irq(s);\n\n}\n", + "output": "0", + "index": 15357 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int transcode(OutputFile *output_files,\n\n int nb_output_files,\n\n InputFile *input_files,\n\n int nb_input_files)\n\n{\n\n int ret, i;\n\n AVFormatContext *is, *os;\n\n OutputStream *ost;\n\n InputStream *ist;\n\n uint8_t *no_packet;\n\n int no_packet_count=0;\n\n int64_t timer_start;\n\n int key;\n\n\n\n if (!(no_packet = av_mallocz(nb_input_files)))\n\n exit_program(1);\n\n\n\n ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);\n\n if (ret < 0)\n\n goto fail;\n\n\n\n if (!using_stdin) {\n\n if(verbose >= 0)\n\n fprintf(stderr, \"Press [q] to stop, [?] for help\\n\");\n\n avio_set_interrupt_cb(decode_interrupt_cb);\n\n }\n\n term_init();\n\n\n\n timer_start = av_gettime();\n\n\n\n for(; received_sigterm == 0;) {\n\n int file_index, ist_index;\n\n AVPacket pkt;\n\n int64_t ipts_min;\n\n double opts_min;\n\n\n\n redo:\n\n ipts_min= INT64_MAX;\n\n opts_min= 1e100;\n\n /* if 'q' pressed, exits */\n\n if (!using_stdin) {\n\n if (q_pressed)\n\n break;\n\n /* read_key() returns 0 on EOF */\n\n key = read_key();\n\n if (key == 'q')\n\n break;\n\n if (key == '+') verbose++;\n\n if (key == '-') verbose--;\n\n if (key == 's') qp_hist ^= 1;\n\n if (key == 'h'){\n\n if (do_hex_dump){\n\n do_hex_dump = do_pkt_dump = 0;\n\n } else if(do_pkt_dump){\n\n do_hex_dump = 1;\n\n } else\n\n do_pkt_dump = 1;\n\n av_log_set_level(AV_LOG_DEBUG);\n\n }\n\n if (key == 'c' || key == 'C'){\n\n char ret[4096], target[64], cmd[256], arg[256]={0};\n\n double ts;\n\n fprintf(stderr, \"\\nEnter command: