diff --git "a/devign/alpaca/devign_1024-*_validate.json" "b/devign/alpaca/devign_1024-*_validate.json" new file mode 100644--- /dev/null +++ "b/devign/alpaca/devign_1024-*_validate.json" @@ -0,0 +1,2144 @@ +[ + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int MPV_encode_init(AVCodecContext *avctx)\n\n{\n\n MpegEncContext *s = avctx->priv_data;\n\n int i;\n\n\n\n avctx->pix_fmt = PIX_FMT_YUV420P;\n\n\n\n s->bit_rate = avctx->bit_rate;\n\n s->bit_rate_tolerance = avctx->bit_rate_tolerance;\n\n s->frame_rate = avctx->frame_rate;\n\n s->width = avctx->width;\n\n s->height = avctx->height;\n\n s->gop_size = avctx->gop_size;\n\n s->rtp_mode = avctx->rtp_mode;\n\n s->rtp_payload_size = avctx->rtp_payload_size;\n\n if (avctx->rtp_callback)\n\n s->rtp_callback = avctx->rtp_callback;\n\n s->qmin= avctx->qmin;\n\n s->qmax= avctx->qmax;\n\n s->max_qdiff= avctx->max_qdiff;\n\n s->qcompress= avctx->qcompress;\n\n s->qblur= avctx->qblur;\n\n s->b_quant_factor= avctx->b_quant_factor;\n\n s->avctx = avctx;\n\n s->aspect_ratio_info= avctx->aspect_ratio_info;\n\n s->flags= avctx->flags;\n\n s->max_b_frames= avctx->max_b_frames;\n\n s->rc_strategy= avctx->rc_strategy;\n\n s->b_frame_strategy= avctx->b_frame_strategy;\n\n s->codec_id= avctx->codec->id;\n\n\n\n if (s->gop_size <= 1) {\n\n s->intra_only = 1;\n\n s->gop_size = 12;\n\n } else {\n\n s->intra_only = 0;\n\n }\n\n \n\n /* ME algorithm */\n\n if (avctx->me_method == 0)\n\n /* For compatibility */\n\n s->me_method = motion_estimation_method;\n\n else\n\n s->me_method = avctx->me_method;\n\n \n\n /* Fixed QSCALE */\n\n s->fixed_qscale = (avctx->flags & CODEC_FLAG_QSCALE);\n\n \n\n switch(avctx->codec->id) {\n\n case CODEC_ID_MPEG1VIDEO:\n\n s->out_format = FMT_MPEG1;\n\n avctx->delay=0; //FIXME not sure, should check the spec\n\n break;\n\n case CODEC_ID_MJPEG:\n\n s->out_format = FMT_MJPEG;\n\n s->intra_only = 1; /* force intra only for jpeg */\n\n s->mjpeg_write_tables = 1; /* write all tables */\n\n\ts->mjpeg_data_only_frames = 0; /* write all the needed headers */\n\n s->mjpeg_vsample[0] = 2; /* set up default sampling factors */\n\n s->mjpeg_vsample[1] = 1; /* the only currently supported values */\n\n s->mjpeg_vsample[2] = 1; \n\n s->mjpeg_hsample[0] = 2;\n\n s->mjpeg_hsample[1] = 1; \n\n s->mjpeg_hsample[2] = 1; \n\n if (mjpeg_init(s) < 0)\n\n return -1;\n\n avctx->delay=0;\n\n break;\n\n case CODEC_ID_H263:\n\n if (h263_get_picture_format(s->width, s->height) == 7) {\n\n printf(\"Input picture size isn't suitable for h263 codec! try h263+\\n\");\n\n return -1;\n\n }\n\n s->out_format = FMT_H263;\n\n avctx->delay=0;\n\n break;\n\n case CODEC_ID_H263P:\n\n s->out_format = FMT_H263;\n\n s->rtp_mode = 1;\n\n s->rtp_payload_size = 1200; \n\n s->h263_plus = 1;\n\n s->unrestricted_mv = 1;\n\n s->h263_aic = 1;\n\n \n\n /* These are just to be sure */\n\n s->umvplus = 0;\n\n s->umvplus_dec = 0;\n\n avctx->delay=0;\n\n break;\n\n case CODEC_ID_RV10:\n\n s->out_format = FMT_H263;\n\n s->h263_rv10 = 1;\n\n avctx->delay=0;\n\n break;\n\n case CODEC_ID_MPEG4:\n\n s->out_format = FMT_H263;\n\n s->h263_pred = 1;\n\n s->unrestricted_mv = 1;\n\n s->has_b_frames= s->max_b_frames ? 1 : 0;\n\n s->low_delay=0;\n\n avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1); \n\n break;\n\n case CODEC_ID_MSMPEG4V1:\n\n s->out_format = FMT_H263;\n\n s->h263_msmpeg4 = 1;\n\n s->h263_pred = 1;\n\n s->unrestricted_mv = 1;\n\n s->msmpeg4_version= 1;\n\n avctx->delay=0;\n\n break;\n\n case CODEC_ID_MSMPEG4V2:\n\n s->out_format = FMT_H263;\n\n s->h263_msmpeg4 = 1;\n\n s->h263_pred = 1;\n\n s->unrestricted_mv = 1;\n\n s->msmpeg4_version= 2;\n\n avctx->delay=0;\n\n break;\n\n case CODEC_ID_MSMPEG4V3:\n\n s->out_format = FMT_H263;\n\n s->h263_msmpeg4 = 1;\n\n s->h263_pred = 1;\n\n s->unrestricted_mv = 1;\n\n s->msmpeg4_version= 3;\n\n avctx->delay=0;\n\n break;\n\n default:\n\n return -1;\n\n }\n\n \n\n if((s->flags&CODEC_FLAG_4MV) && !(s->flags&CODEC_FLAG_HQ)){\n\n printf(\"4MV is currently only supported in HQ mode\\n\");\n\n return -1;\n\n }\n\n\n\n { /* set up some save defaults, some codecs might override them later */\n\n static int done=0;\n\n if(!done){\n\n int i;\n\n done=1;\n\n memset(default_mv_penalty, 0, sizeof(UINT16)*(MAX_FCODE+1)*(2*MAX_MV+1));\n\n memset(default_fcode_tab , 0, sizeof(UINT8)*(2*MAX_MV+1));\n\n\n\n for(i=-16; i<16; i++){\n\n default_fcode_tab[i + MAX_MV]= 1;\n\n }\n\n }\n\n }\n\n s->mv_penalty= default_mv_penalty;\n\n s->fcode_tab= default_fcode_tab;\n\n\n\n if (s->out_format == FMT_H263)\n\n h263_encode_init(s);\n\n else if (s->out_format == FMT_MPEG1)\n\n mpeg1_encode_init(s);\n\n\n\n /* dont use mv_penalty table for crap MV as it would be confused */\n\n if (s->me_method < ME_EPZS) s->mv_penalty = default_mv_penalty;\n\n\n\n s->encoding = 1;\n\n\n\n /* init */\n\n if (MPV_common_init(s) < 0)\n\n return -1;\n\n \n\n /* init default q matrix */\n\n for(i=0;i<64;i++) {\n\n if(s->out_format == FMT_H263)\n\n s->intra_matrix[i] = default_non_intra_matrix[i];\n\n else\n\n s->intra_matrix[i] = default_intra_matrix[i];\n\n\n\n s->inter_matrix[i] = default_non_intra_matrix[i];\n\n }\n\n\n\n /* precompute matrix */\n\n /* for mjpeg, we do include qscale in the matrix */\n\n if (s->out_format != FMT_MJPEG) {\n\n convert_matrix(s->q_intra_matrix, s->q_intra_matrix16, s->q_intra_matrix16_bias, \n\n s->intra_matrix, s->intra_quant_bias);\n\n convert_matrix(s->q_inter_matrix, s->q_inter_matrix16, s->q_inter_matrix16_bias, \n\n s->inter_matrix, s->inter_quant_bias);\n\n }\n\n\n\n if(ff_rate_control_init(s) < 0)\n\n return -1;\n\n\n\n s->picture_number = 0;\n\n s->picture_in_gop_number = 0;\n\n s->fake_picture_number = 0;\n\n /* motion detector init */\n\n s->f_code = 1;\n\n s->b_code = 1;\n\n\n\n return 0;\n\n}\n", + "output": "0", + "index": 20136 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static inline void RENAME(hyscale)(uint16_t *dst, long dstWidth, uint8_t *src, int srcW, int xInc,\n\n\t\t\t\t int flags, int canMMX2BeUsed, int16_t *hLumFilter,\n\n\t\t\t\t int16_t *hLumFilterPos, int hLumFilterSize, void *funnyYCode,\n\n\t\t\t\t int srcFormat, uint8_t *formatConvBuffer, int16_t *mmx2Filter,\n\n\t\t\t\t int32_t *mmx2FilterPos, uint8_t *pal)\n\n{\n\n if(srcFormat==PIX_FMT_YUYV422 || srcFormat==PIX_FMT_GRAY16BE)\n\n {\n\n\tRENAME(yuy2ToY)(formatConvBuffer, src, srcW);\n\n\tsrc= formatConvBuffer;\n\n }\n\n else if(srcFormat==PIX_FMT_UYVY422 || srcFormat==PIX_FMT_GRAY16LE)\n\n {\n\n\tRENAME(uyvyToY)(formatConvBuffer, src, srcW);\n\n\tsrc= formatConvBuffer;\n\n }\n\n else if(srcFormat==PIX_FMT_RGB32)\n\n {\n\n\tRENAME(bgr32ToY)(formatConvBuffer, src, srcW);\n\n\tsrc= formatConvBuffer;\n\n }\n\n else if(srcFormat==PIX_FMT_BGR24)\n\n {\n\n\tRENAME(bgr24ToY)(formatConvBuffer, src, srcW);\n\n\tsrc= formatConvBuffer;\n\n }\n\n else if(srcFormat==PIX_FMT_BGR565)\n\n {\n\n\tRENAME(bgr16ToY)(formatConvBuffer, src, srcW);\n\n\tsrc= formatConvBuffer;\n\n }\n\n else if(srcFormat==PIX_FMT_BGR555)\n\n {\n\n\tRENAME(bgr15ToY)(formatConvBuffer, src, srcW);\n\n\tsrc= formatConvBuffer;\n\n }\n\n else if(srcFormat==PIX_FMT_BGR32)\n\n {\n\n\tRENAME(rgb32ToY)(formatConvBuffer, src, srcW);\n\n\tsrc= formatConvBuffer;\n\n }\n\n else if(srcFormat==PIX_FMT_RGB24)\n\n {\n\n\tRENAME(rgb24ToY)(formatConvBuffer, src, srcW);\n\n\tsrc= formatConvBuffer;\n\n }\n\n else if(srcFormat==PIX_FMT_RGB565)\n\n {\n\n\tRENAME(rgb16ToY)(formatConvBuffer, src, srcW);\n\n\tsrc= formatConvBuffer;\n\n }\n\n else if(srcFormat==PIX_FMT_RGB555)\n\n {\n\n\tRENAME(rgb15ToY)(formatConvBuffer, src, srcW);\n\n\tsrc= formatConvBuffer;\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\tRENAME(palToY)(formatConvBuffer, src, srcW, pal);\n\n\tsrc= formatConvBuffer;\n\n }\n\n\n\n#ifdef HAVE_MMX\n\n\t// use the new MMX scaler if the mmx2 can't be used (its faster than the x86asm 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 \tRENAME(hScale)(dst, dstWidth, src, srcW, xInc, hLumFilter, hLumFilterPos, hLumFilterSize);\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\tint i;\n\n#if defined(PIC)\n\n\tuint64_t ebxsave __attribute__((aligned(8)));\n\n#endif\n\n\tif(canMMX2BeUsed)\n\n\t{\n\n\t\tasm volatile(\n\n#if defined(PIC)\n\n\t\t\t\"mov %%\"REG_b\", %5 \\n\\t\"\n\n#endif\n\n\t\t\t\"pxor %%mm7, %%mm7\t\t\\n\\t\"\n\n\t\t\t\"mov %0, %%\"REG_c\"\t\t\\n\\t\"\n\n\t\t\t\"mov %1, %%\"REG_D\"\t\t\\n\\t\"\n\n\t\t\t\"mov %2, %%\"REG_d\"\t\t\\n\\t\"\n\n\t\t\t\"mov %3, %%\"REG_b\"\t\t\\n\\t\"\n\n\t\t\t\"xor %%\"REG_a\", %%\"REG_a\"\t\\n\\t\" // i\n\n\t\t\tPREFETCH\" (%%\"REG_c\")\t\t\\n\\t\"\n\n\t\t\tPREFETCH\" 32(%%\"REG_c\")\t\t\\n\\t\"\n\n\t\t\tPREFETCH\" 64(%%\"REG_c\")\t\t\\n\\t\"\n\n\n\n#ifdef ARCH_X86_64\n\n\n\n#define FUNNY_Y_CODE \\\n\n\t\t\t\"movl (%%\"REG_b\"), %%esi\t\\n\\t\"\\\n\n\t\t\t\"call *%4\t\t\t\\n\\t\"\\\n\n\t\t\t\"movl (%%\"REG_b\", %%\"REG_a\"), %%esi\\n\\t\"\\\n\n\t\t\t\"add %%\"REG_S\", %%\"REG_c\"\t\\n\\t\"\\\n\n\t\t\t\"add %%\"REG_a\", %%\"REG_D\"\t\\n\\t\"\\\n\n\t\t\t\"xor %%\"REG_a\", %%\"REG_a\"\t\\n\\t\"\\\n\n\n\n#else\n\n\n\n#define FUNNY_Y_CODE \\\n\n\t\t\t\"movl (%%\"REG_b\"), %%esi\t\\n\\t\"\\\n\n\t\t\t\"call *%4\t\t\t\\n\\t\"\\\n\n\t\t\t\"addl (%%\"REG_b\", %%\"REG_a\"), %%\"REG_c\"\\n\\t\"\\\n\n\t\t\t\"add %%\"REG_a\", %%\"REG_D\"\t\\n\\t\"\\\n\n\t\t\t\"xor %%\"REG_a\", %%\"REG_a\"\t\\n\\t\"\\\n\n\n\n#endif\n\n\n\nFUNNY_Y_CODE\n\nFUNNY_Y_CODE\n\nFUNNY_Y_CODE\n\nFUNNY_Y_CODE\n\nFUNNY_Y_CODE\n\nFUNNY_Y_CODE\n\nFUNNY_Y_CODE\n\nFUNNY_Y_CODE\n\n\n\n#if defined(PIC)\n\n\t\t\t\"mov %5, %%\"REG_b\" \\n\\t\"\n\n#endif\n\n\t\t\t:: \"m\" (src), \"m\" (dst), \"m\" (mmx2Filter), \"m\" (mmx2FilterPos),\n\n\t\t\t\"m\" (funnyYCode)\n\n#if defined(PIC)\n\n\t\t\t,\"m\" (ebxsave)\n\n#endif\n\n\t\t\t: \"%\"REG_a, \"%\"REG_c, \"%\"REG_d, \"%\"REG_S, \"%\"REG_D\n\n#if !defined(PIC)\n\n\t\t\t,\"%\"REG_b\n\n#endif\n\n\t\t);\n\n\t\tfor(i=dstWidth-1; (i*xInc)>>16 >=srcW-1; i--) dst[i] = src[srcW-1]*128;\n\n\t}\n\n\telse\n\n\t{\n\n#endif\n\n\tlong xInc_shr16 = xInc >> 16;\n\n\tuint16_t xInc_mask = xInc & 0xffff;\n\n\t//NO MMX just normal asm ...\n\n\tasm volatile(\n\n\t\t\"xor %%\"REG_a\", %%\"REG_a\"\t\\n\\t\" // i\n\n\t\t\"xor %%\"REG_d\", %%\"REG_d\"\t\\n\\t\" // xx\n\n\t\t\"xorl %%ecx, %%ecx\t\t\\n\\t\" // 2*xalpha\n\n\t\tASMALIGN(4)\n\n\t\t\"1:\t\t\t\t\\n\\t\"\n\n\t\t\"movzbl (%0, %%\"REG_d\"), %%edi\t\\n\\t\" //src[xx]\n\n\t\t\"movzbl 1(%0, %%\"REG_d\"), %%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\"mov %1, %%\"REG_D\"\t\t\\n\\t\"\n\n\t\t\"shrl $9, %%esi\t\t\t\\n\\t\"\n\n\t\t\"movw %%si, (%%\"REG_D\", %%\"REG_a\", 2)\\n\\t\"\n\n\t\t\"addw %4, %%cx\t\t\t\\n\\t\" //2*xalpha += xInc&0xFF\n\n\t\t\"adc %3, %%\"REG_d\"\t\t\\n\\t\" //xx+= xInc>>8 + carry\n\n\n\n\t\t\"movzbl (%0, %%\"REG_d\"), %%edi\t\\n\\t\" //src[xx]\n\n\t\t\"movzbl 1(%0, %%\"REG_d\"), %%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\"mov %1, %%\"REG_D\"\t\t\\n\\t\"\n\n\t\t\"shrl $9, %%esi\t\t\t\\n\\t\"\n\n\t\t\"movw %%si, 2(%%\"REG_D\", %%\"REG_a\", 2)\\n\\t\"\n\n\t\t\"addw %4, %%cx\t\t\t\\n\\t\" //2*xalpha += xInc&0xFF\n\n\t\t\"adc %3, %%\"REG_d\"\t\t\\n\\t\" //xx+= xInc>>8 + carry\n\n\n\n\n\n\t\t\"add $2, %%\"REG_a\"\t\t\\n\\t\"\n\n\t\t\"cmp %2, %%\"REG_a\"\t\t\\n\\t\"\n\n\t\t\" jb 1b\t\t\t\t\\n\\t\"\n\n\n\n\n\n\t\t:: \"r\" (src), \"m\" (dst), \"m\" (dstWidth), \"m\" (xInc_shr16), \"m\" (xInc_mask)\n\n\t\t: \"%\"REG_a, \"%\"REG_d, \"%ecx\", \"%\"REG_D, \"%esi\"\n\n\t\t);\n\n#ifdef HAVE_MMX2\n\n\t} //if MMX2 can't 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]= (src[xx]<<7) + (src[xx+1] - src[xx])*xalpha;\n\n\t\txpos+=xInc;\n\n\t}\n\n#endif\n\n }\n\n}\n", + "output": "1", + "index": 12808 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int decode_frame(AVCodecContext * avctx,\n\n\t\t\tvoid *data, int *data_size,\n\n\t\t\tUINT8 * buf, int buf_size)\n\n{\n\n MPADecodeContext *s = avctx->priv_data;\n\n UINT32 header;\n\n UINT8 *buf_ptr;\n\n int len, out_size;\n\n short *out_samples = data;\n\n\n\n *data_size = 0;\n\n buf_ptr = buf;\n\n while (buf_size > 0) {\n\n\tlen = s->inbuf_ptr - s->inbuf;\n\n\tif (s->frame_size == 0) {\n\n /* special case for next header for first frame in free\n\n format case (XXX: find a simpler method) */\n\n if (s->free_format_next_header != 0) {\n\n s->inbuf[0] = s->free_format_next_header >> 24;\n\n s->inbuf[1] = s->free_format_next_header >> 16;\n\n s->inbuf[2] = s->free_format_next_header >> 8;\n\n s->inbuf[3] = s->free_format_next_header;\n\n s->inbuf_ptr = s->inbuf + 4;\n\n s->free_format_next_header = 0;\n\n goto got_header;\n\n }\n\n\t /* no header seen : find one. We need at least HEADER_SIZE\n\n bytes to parse it */\n\n\t len = HEADER_SIZE - len;\n\n\t if (len > buf_size)\n\n\t\tlen = buf_size;\n\n\t if (len > 0) {\n\n\t\tmemcpy(s->inbuf_ptr, buf_ptr, len);\n\n\t\tbuf_ptr += len;\n\n\t\tbuf_size -= len;\n\n\t\ts->inbuf_ptr += len;\n\n\t }\n\n\t if ((s->inbuf_ptr - s->inbuf) >= HEADER_SIZE) {\n\n got_header:\n\n\t\theader = (s->inbuf[0] << 24) | (s->inbuf[1] << 16) |\n\n\t\t (s->inbuf[2] << 8) | s->inbuf[3];\n\n\n\n\t\tif (check_header(header) < 0) {\n\n\t\t /* no sync found : move by one byte (inefficient, but simple!) */\n\n\t\t memcpy(s->inbuf, s->inbuf + 1, s->inbuf_ptr - s->inbuf - 1);\n\n\t\t s->inbuf_ptr--;\n\n dprintf(\"skip %x\\n\", header);\n\n /* reset free format frame size to give a chance\n\n to get a new bitrate */\n\n s->free_format_frame_size = 0;\n\n\t\t} else {\n\n\t\t if (decode_header(s, header) == 1) {\n\n /* free format: compute frame size */\n\n\t\t\ts->frame_size = -1;\n\n\t\t\tmemcpy(s->inbuf, s->inbuf + 1, s->inbuf_ptr - s->inbuf - 1);\n\n\t\t\ts->inbuf_ptr--;\n\n } else {\n\n /* update codec info */\n\n avctx->sample_rate = s->sample_rate;\n\n avctx->channels = s->nb_channels;\n\n\t\t\tavctx->bit_rate = s->bit_rate;\n\n\t\t\tavctx->frame_size = s->frame_size;\n\n }\n\n\t\t}\n\n\t }\n\n } else if (s->frame_size == -1) {\n\n /* free format : find next sync to compute frame size */\n\n\t len = MPA_MAX_CODED_FRAME_SIZE - len;\n\n\t if (len > buf_size)\n\n\t\tlen = buf_size;\n\n if (len == 0) {\n\n /* frame too long: resync */\n\n s->frame_size = 0;\n\n } else {\n\n UINT8 *p, *pend;\n\n UINT32 header1;\n\n int padding;\n\n\n\n memcpy(s->inbuf_ptr, buf_ptr, len);\n\n /* check for header */\n\n p = s->inbuf_ptr - 3;\n\n pend = s->inbuf_ptr + len - 4;\n\n while (p <= pend) {\n\n header = (p[0] << 24) | (p[1] << 16) |\n\n (p[2] << 8) | p[3];\n\n header1 = (s->inbuf[0] << 24) | (s->inbuf[1] << 16) |\n\n (s->inbuf[2] << 8) | s->inbuf[3];\n\n /* check with high probability that we have a\n\n valid header */\n\n if ((header & SAME_HEADER_MASK) ==\n\n (header1 & SAME_HEADER_MASK)) {\n\n /* header found: update pointers */\n\n len = (p + 4) - s->inbuf_ptr;\n\n buf_ptr += len;\n\n buf_size -= len;\n\n s->inbuf_ptr = p;\n\n /* compute frame size */\n\n s->free_format_next_header = header;\n\n s->free_format_frame_size = s->inbuf_ptr - s->inbuf;\n\n padding = (header1 >> 9) & 1;\n\n if (s->layer == 1)\n\n s->free_format_frame_size -= padding * 4;\n\n else\n\n s->free_format_frame_size -= padding;\n\n dprintf(\"free frame size=%d padding=%d\\n\", \n\n s->free_format_frame_size, padding);\n\n decode_header(s, header1);\n\n goto next_data;\n\n }\n\n p++;\n\n }\n\n /* not found: simply increase pointers */\n\n buf_ptr += len;\n\n s->inbuf_ptr += len;\n\n buf_size -= len;\n\n }\n\n\t} else if (len < s->frame_size) {\n\n if (s->frame_size > MPA_MAX_CODED_FRAME_SIZE)\n\n s->frame_size = MPA_MAX_CODED_FRAME_SIZE;\n\n\t len = s->frame_size - len;\n\n\t if (len > buf_size)\n\n\t\tlen = buf_size;\n\n\t else if (len < 4)\n\n\t\tlen = buf_size > 4 ? 4 : buf_size;\n\n\t memcpy(s->inbuf_ptr, buf_ptr, len);\n\n\t buf_ptr += len;\n\n\t s->inbuf_ptr += len;\n\n\t buf_size -= len;\n\n\t} else {\n\n out_size = mp_decode_frame(s, out_samples);\n\n\t s->inbuf_ptr = s->inbuf;\n\n\t s->frame_size = 0;\n\n\t *data_size = out_size;\n\n\t break;\n\n\t}\n\n next_data:\n\n }\n\n return buf_ptr - buf;\n\n}\n", + "output": "0", + "index": 22648 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void x86_cpu_initfn(Object *obj)\n{\n CPUState *cs = CPU(obj);\n X86CPU *cpu = X86_CPU(obj);\n X86CPUClass *xcc = X86_CPU_GET_CLASS(obj);\n CPUX86State *env = &cpu->env;\n FeatureWord w;\n cs->env_ptr = env;\n object_property_add(obj, \"family\", \"int\",\n x86_cpuid_version_get_family,\n x86_cpuid_version_set_family, NULL, NULL, NULL);\n object_property_add(obj, \"model\", \"int\",\n x86_cpuid_version_get_model,\n x86_cpuid_version_set_model, NULL, NULL, NULL);\n object_property_add(obj, \"stepping\", \"int\",\n x86_cpuid_version_get_stepping,\n x86_cpuid_version_set_stepping, NULL, NULL, NULL);\n object_property_add_str(obj, \"vendor\",\n x86_cpuid_get_vendor,\n x86_cpuid_set_vendor, NULL);\n object_property_add_str(obj, \"model-id\",\n x86_cpuid_get_model_id,\n x86_cpuid_set_model_id, NULL);\n object_property_add(obj, \"tsc-frequency\", \"int\",\n x86_cpuid_get_tsc_freq,\n x86_cpuid_set_tsc_freq, NULL, NULL, NULL);\n object_property_add(obj, \"feature-words\", \"X86CPUFeatureWordInfo\",\n x86_cpu_get_feature_words,\n NULL, NULL, (void *)env->features, NULL);\n object_property_add(obj, \"filtered-features\", \"X86CPUFeatureWordInfo\",\n x86_cpu_get_feature_words,\n NULL, NULL, (void *)cpu->filtered_features, NULL);\n cpu->hyperv_spinlock_attempts = HYPERV_SPINLOCK_NEVER_RETRY;\n for (w = 0; w < FEATURE_WORDS; w++) {\n int bitnr;\n for (bitnr = 0; bitnr < 32; bitnr++) {\n x86_cpu_register_feature_bit_props(cpu, w, bitnr);\n }\n }\n object_property_add_alias(obj, \"sse3\", obj, \"pni\", &error_abort);\n object_property_add_alias(obj, \"pclmuldq\", obj, \"pclmulqdq\", &error_abort);\n object_property_add_alias(obj, \"sse4-1\", obj, \"sse4.1\", &error_abort);\n object_property_add_alias(obj, \"sse4-2\", obj, \"sse4.2\", &error_abort);\n object_property_add_alias(obj, \"xd\", obj, \"nx\", &error_abort);\n object_property_add_alias(obj, \"ffxsr\", obj, \"fxsr-opt\", &error_abort);\n object_property_add_alias(obj, \"i64\", obj, \"lm\", &error_abort);\n object_property_add_alias(obj, \"ds_cpl\", obj, \"ds-cpl\", &error_abort);\n object_property_add_alias(obj, \"tsc_adjust\", obj, \"tsc-adjust\", &error_abort);\n object_property_add_alias(obj, \"fxsr_opt\", obj, \"fxsr-opt\", &error_abort);\n object_property_add_alias(obj, \"lahf_lm\", obj, \"lahf-lm\", &error_abort);\n object_property_add_alias(obj, \"cmp_legacy\", obj, \"cmp-legacy\", &error_abort);\n object_property_add_alias(obj, \"nodeid_msr\", obj, \"nodeid-msr\", &error_abort);\n object_property_add_alias(obj, \"perfctr_core\", obj, \"perfctr-core\", &error_abort);\n object_property_add_alias(obj, \"perfctr_nb\", obj, \"perfctr-nb\", &error_abort);\n object_property_add_alias(obj, \"kvm_nopiodelay\", obj, \"kvm-nopiodelay\", &error_abort);\n object_property_add_alias(obj, \"kvm_mmu\", obj, \"kvm-mmu\", &error_abort);\n object_property_add_alias(obj, \"kvm_asyncpf\", obj, \"kvm-asyncpf\", &error_abort);\n object_property_add_alias(obj, \"kvm_steal_time\", obj, \"kvm-steal-time\", &error_abort);\n object_property_add_alias(obj, \"kvm_pv_eoi\", obj, \"kvm-pv-eoi\", &error_abort);\n object_property_add_alias(obj, \"kvm_pv_unhalt\", obj, \"kvm-pv-unhalt\", &error_abort);\n object_property_add_alias(obj, \"svm_lock\", obj, \"svm-lock\", &error_abort);\n object_property_add_alias(obj, \"nrip_save\", obj, \"nrip-save\", &error_abort);\n object_property_add_alias(obj, \"tsc_scale\", obj, \"tsc-scale\", &error_abort);\n object_property_add_alias(obj, \"vmcb_clean\", obj, \"vmcb-clean\", &error_abort);\n object_property_add_alias(obj, \"pause_filter\", obj, \"pause-filter\", &error_abort);\n object_property_add_alias(obj, \"sse4_1\", obj, \"sse4.1\", &error_abort);\n object_property_add_alias(obj, \"sse4_2\", obj, \"sse4.2\", &error_abort);\n x86_cpu_load_def(cpu, xcc->cpu_def, &error_abort);\n}", + "output": "1", + "index": 20859 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static inline void yuv2rgbXinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,\n\n\t\t\t\t int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,\n\n\t\t\t\t uint8_t *dest, int dstW, int dstbpp)\n\n{\n\n\tif(dstbpp==32)\n\n\t{\n\n\t\tint i;\n\n\t\tfor(i=0; i<(dstW>>1); i++){\n\n\t\t\tint j;\n\n\t\t\tint Y1=0;\n\n\t\t\tint Y2=0;\n\n\t\t\tint U=0;\n\n\t\t\tint V=0;\n\n\t\t\tint Cb, Cr, Cg;\n\n\t\t\tfor(j=0; j>19) + 256 ];\n\n\t\t\tY2= clip_yuvtab_2568[ (Y2>>19) + 256 ];\n\n\t\t\tU >>= 19;\n\n\t\t\tV >>= 19;\n\n\n\n\t\t\tCb= clip_yuvtab_40cf[U+ 256];\n\n\t\t\tCg= clip_yuvtab_1a1e[V+ 256] + yuvtab_0c92[U+ 256];\n\n\t\t\tCr= clip_yuvtab_3343[V+ 256];\n\n\n\n\t\t\tdest[8*i+0]=clip_table[((Y1 + Cb) >>13)];\n\n\t\t\tdest[8*i+1]=clip_table[((Y1 + Cg) >>13)];\n\n\t\t\tdest[8*i+2]=clip_table[((Y1 + Cr) >>13)];\n\n\n\n\t\t\tdest[8*i+4]=clip_table[((Y2 + Cb) >>13)];\n\n\t\t\tdest[8*i+5]=clip_table[((Y2 + Cg) >>13)];\n\n\t\t\tdest[8*i+6]=clip_table[((Y2 + Cr) >>13)];\n\n\t\t}\n\n\t}\n\n\telse if(dstbpp==24)\n\n\t{\n\n\t\tint i;\n\n\t\tfor(i=0; i<(dstW>>1); i++){\n\n\t\t\tint j;\n\n\t\t\tint Y1=0;\n\n\t\t\tint Y2=0;\n\n\t\t\tint U=0;\n\n\t\t\tint V=0;\n\n\t\t\tint Cb, Cr, Cg;\n\n\t\t\tfor(j=0; j>19) + 256 ];\n\n\t\t\tY2= clip_yuvtab_2568[ (Y2>>19) + 256 ];\n\n\t\t\tU >>= 19;\n\n\t\t\tV >>= 19;\n\n\n\n\t\t\tCb= clip_yuvtab_40cf[U+ 256];\n\n\t\t\tCg= clip_yuvtab_1a1e[V+ 256] + yuvtab_0c92[U+ 256];\n\n\t\t\tCr= clip_yuvtab_3343[V+ 256];\n\n\n\n\t\t\tdest[0]=clip_table[((Y1 + Cb) >>13)];\n\n\t\t\tdest[1]=clip_table[((Y1 + Cg) >>13)];\n\n\t\t\tdest[2]=clip_table[((Y1 + Cr) >>13)];\n\n\n\n\t\t\tdest[3]=clip_table[((Y2 + Cb) >>13)];\n\n\t\t\tdest[4]=clip_table[((Y2 + Cg) >>13)];\n\n\t\t\tdest[5]=clip_table[((Y2 + Cr) >>13)];\n\n\t\t\tdest+=6;\n\n\t\t}\n\n\t}\n\n\telse if(dstbpp==16)\n\n\t{\n\n\t\tint i;\n\n\t\tfor(i=0; i<(dstW>>1); i++){\n\n\t\t\tint j;\n\n\t\t\tint Y1=0;\n\n\t\t\tint Y2=0;\n\n\t\t\tint U=0;\n\n\t\t\tint V=0;\n\n\t\t\tint Cb, Cr, Cg;\n\n\t\t\tfor(j=0; j>19) + 256 ];\n\n\t\t\tY2= clip_yuvtab_2568[ (Y2>>19) + 256 ];\n\n\t\t\tU >>= 19;\n\n\t\t\tV >>= 19;\n\n\n\n\t\t\tCb= clip_yuvtab_40cf[U+ 256];\n\n\t\t\tCg= clip_yuvtab_1a1e[V+ 256] + yuvtab_0c92[U+ 256];\n\n\t\t\tCr= clip_yuvtab_3343[V+ 256];\n\n\n\n\t\t\t((uint16_t*)dest)[2*i] =\n\n\t\t\t\tclip_table16b[(Y1 + Cb) >>13] |\n\n\t\t\t\tclip_table16g[(Y1 + Cg) >>13] |\n\n\t\t\t\tclip_table16r[(Y1 + Cr) >>13];\n\n\n\n\t\t\t((uint16_t*)dest)[2*i+1] =\n\n\t\t\t\tclip_table16b[(Y2 + Cb) >>13] |\n\n\t\t\t\tclip_table16g[(Y2 + Cg) >>13] |\n\n\t\t\t\tclip_table16r[(Y2 + Cr) >>13];\n\n\t\t}\n\n\t}\n\n\telse if(dstbpp==15)\n\n\t{\n\n\t\tint i;\n\n\t\tfor(i=0; i<(dstW>>1); i++){\n\n\t\t\tint j;\n\n\t\t\tint Y1=0;\n\n\t\t\tint Y2=0;\n\n\t\t\tint U=0;\n\n\t\t\tint V=0;\n\n\t\t\tint Cb, Cr, Cg;\n\n\t\t\tfor(j=0; j>19) + 256 ];\n\n\t\t\tY2= clip_yuvtab_2568[ (Y2>>19) + 256 ];\n\n\t\t\tU >>= 19;\n\n\t\t\tV >>= 19;\n\n\n\n\t\t\tCb= clip_yuvtab_40cf[U+ 256];\n\n\t\t\tCg= clip_yuvtab_1a1e[V+ 256] + yuvtab_0c92[U+ 256];\n\n\t\t\tCr= clip_yuvtab_3343[V+ 256];\n\n\n\n\t\t\t((uint16_t*)dest)[2*i] =\n\n\t\t\t\tclip_table15b[(Y1 + Cb) >>13] |\n\n\t\t\t\tclip_table15g[(Y1 + Cg) >>13] |\n\n\t\t\t\tclip_table15r[(Y1 + Cr) >>13];\n\n\n\n\t\t\t((uint16_t*)dest)[2*i+1] =\n\n\t\t\t\tclip_table15b[(Y2 + Cb) >>13] |\n\n\t\t\t\tclip_table15g[(Y2 + Cg) >>13] |\n\n\t\t\t\tclip_table15r[(Y2 + Cr) >>13];\n\n\t\t}\n\n\t}\n\n}\n", + "output": "1", + "index": 21693 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int xen_9pfs_connect(struct XenDevice *xendev)\n\n{\n\n int i;\n\n Xen9pfsDev *xen_9pdev = container_of(xendev, Xen9pfsDev, xendev);\n\n V9fsState *s = &xen_9pdev->state;\n\n QemuOpts *fsdev;\n\n\n\n if (xenstore_read_fe_int(&xen_9pdev->xendev, \"num-rings\",\n\n &xen_9pdev->num_rings) == -1 ||\n\n xen_9pdev->num_rings > MAX_RINGS || xen_9pdev->num_rings < 1) {\n\n return -1;\n\n }\n\n\n\n xen_9pdev->rings = g_malloc0(xen_9pdev->num_rings * sizeof(Xen9pfsRing));\n\n for (i = 0; i < xen_9pdev->num_rings; i++) {\n\n char *str;\n\n int ring_order;\n\n\n\n xen_9pdev->rings[i].priv = xen_9pdev;\n\n xen_9pdev->rings[i].evtchn = -1;\n\n xen_9pdev->rings[i].local_port = -1;\n\n\n\n str = g_strdup_printf(\"ring-ref%u\", i);\n\n if (xenstore_read_fe_int(&xen_9pdev->xendev, str,\n\n &xen_9pdev->rings[i].ref) == -1) {\n\n g_free(str);\n\n goto out;\n\n }\n\n g_free(str);\n\n str = g_strdup_printf(\"event-channel-%u\", i);\n\n if (xenstore_read_fe_int(&xen_9pdev->xendev, str,\n\n &xen_9pdev->rings[i].evtchn) == -1) {\n\n g_free(str);\n\n goto out;\n\n }\n\n g_free(str);\n\n\n\n xen_9pdev->rings[i].intf = xengnttab_map_grant_ref(\n\n xen_9pdev->xendev.gnttabdev,\n\n xen_9pdev->xendev.dom,\n\n xen_9pdev->rings[i].ref,\n\n PROT_READ | PROT_WRITE);\n\n if (!xen_9pdev->rings[i].intf) {\n\n goto out;\n\n }\n\n ring_order = xen_9pdev->rings[i].intf->ring_order;\n\n if (ring_order > MAX_RING_ORDER) {\n\n goto out;\n\n }\n\n xen_9pdev->rings[i].ring_order = ring_order;\n\n xen_9pdev->rings[i].data = xengnttab_map_domain_grant_refs(\n\n xen_9pdev->xendev.gnttabdev,\n\n (1 << ring_order),\n\n xen_9pdev->xendev.dom,\n\n xen_9pdev->rings[i].intf->ref,\n\n PROT_READ | PROT_WRITE);\n\n if (!xen_9pdev->rings[i].data) {\n\n goto out;\n\n }\n\n xen_9pdev->rings[i].ring.in = xen_9pdev->rings[i].data;\n\n xen_9pdev->rings[i].ring.out = xen_9pdev->rings[i].data +\n\n XEN_FLEX_RING_SIZE(ring_order);\n\n\n\n xen_9pdev->rings[i].bh = qemu_bh_new(xen_9pfs_bh, &xen_9pdev->rings[i]);\n\n xen_9pdev->rings[i].out_cons = 0;\n\n xen_9pdev->rings[i].out_size = 0;\n\n xen_9pdev->rings[i].inprogress = false;\n\n\n\n\n\n xen_9pdev->rings[i].evtchndev = xenevtchn_open(NULL, 0);\n\n if (xen_9pdev->rings[i].evtchndev == NULL) {\n\n goto out;\n\n }\n\n fcntl(xenevtchn_fd(xen_9pdev->rings[i].evtchndev), F_SETFD, FD_CLOEXEC);\n\n xen_9pdev->rings[i].local_port = xenevtchn_bind_interdomain\n\n (xen_9pdev->rings[i].evtchndev,\n\n xendev->dom,\n\n xen_9pdev->rings[i].evtchn);\n\n if (xen_9pdev->rings[i].local_port == -1) {\n\n xen_pv_printf(xendev, 0,\n\n \"xenevtchn_bind_interdomain failed port=%d\\n\",\n\n xen_9pdev->rings[i].evtchn);\n\n goto out;\n\n }\n\n xen_pv_printf(xendev, 2, \"bind evtchn port %d\\n\", xendev->local_port);\n\n qemu_set_fd_handler(xenevtchn_fd(xen_9pdev->rings[i].evtchndev),\n\n xen_9pfs_evtchn_event, NULL, &xen_9pdev->rings[i]);\n\n }\n\n\n\n xen_9pdev->security_model = xenstore_read_be_str(xendev, \"security_model\");\n\n xen_9pdev->path = xenstore_read_be_str(xendev, \"path\");\n\n xen_9pdev->id = s->fsconf.fsdev_id =\n\n g_strdup_printf(\"xen9p%d\", xendev->dev);\n\n xen_9pdev->tag = s->fsconf.tag = xenstore_read_fe_str(xendev, \"tag\");\n\n v9fs_register_transport(s, &xen_9p_transport);\n\n fsdev = qemu_opts_create(qemu_find_opts(\"fsdev\"),\n\n s->fsconf.tag,\n\n 1, NULL);\n\n qemu_opt_set(fsdev, \"fsdriver\", \"local\", NULL);\n\n qemu_opt_set(fsdev, \"path\", xen_9pdev->path, NULL);\n\n qemu_opt_set(fsdev, \"security_model\", xen_9pdev->security_model, NULL);\n\n qemu_opts_set_id(fsdev, s->fsconf.fsdev_id);\n\n qemu_fsdev_add(fsdev);\n\n v9fs_device_realize_common(s, NULL);\n\n\n\n return 0;\n\n\n\nout:\n\n xen_9pfs_free(xendev);\n\n return -1;\n\n}\n", + "output": "0", + "index": 19490 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "void ff_snow_horizontal_compose97i_sse2(DWTELEM *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 DWTELEM temp_buf[(width>>1) + 4];\n\n DWTELEM * 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 DWTELEM * const ref = b + w2 - 1;\n\n DWTELEM 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 \"pslld $31, %%xmm7 \\n\\t\"\n\n \"psrld $29, %%xmm7 \\n\\t\"\n\n ::);\n\n for(; i>W_DS);\n\n }\n\n\n\n { // Lift 1\n\n DWTELEM * const dst = b+w2;\n\n\n\n i = 0;\n\n for(; (((long)&dst[i]) & 0xF) && i> W_BS);\n\n }\n\n\n\n { // Lift 3\n\n DWTELEM * const src = b+w2;\n\n\n\n i = 0;\n\n for(; (((long)&temp[i]) & 0xF) && i>W_AS);\n\n }\n\n for(; i>1];\n\n b[i] = b[i>>1];\n\n }\n\n for (i-=30; i>=0; i-=32){\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 \"punpckldq (%2), %%xmm0 \\n\\t\"\n\n \"punpckldq 16(%2), %%xmm2 \\n\\t\"\n\n \"punpckldq 32(%2), %%xmm4 \\n\\t\"\n\n \"punpckldq 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 \"punpckhdq (%2), %%xmm1 \\n\\t\"\n\n \"punpckhdq 16(%2), %%xmm3 \\n\\t\"\n\n \"punpckhdq 32(%2), %%xmm5 \\n\\t\"\n\n \"punpckhdq 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": 10799 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "make_setup_request (AVFormatContext *s, const char *host, int port,\n\n int lower_transport, const char *real_challenge)\n\n{\n\n RTSPState *rt = s->priv_data;\n\n int rtx, j, i, err, interleave = 0;\n\n RTSPStream *rtsp_st;\n\n RTSPMessageHeader reply1, *reply = &reply1;\n\n char cmd[2048];\n\n const char *trans_pref;\n\n\n\n if (rt->transport == RTSP_TRANSPORT_RDT)\n\n trans_pref = \"x-pn-tng\";\n\n else\n\n trans_pref = \"RTP/AVP\";\n\n\n\n /* default timeout: 1 minute */\n\n rt->timeout = 60;\n\n\n\n /* for each stream, make the setup request */\n\n /* XXX: we assume the same server is used for the control of each\n\n RTSP stream */\n\n\n\n for(j = RTSP_RTP_PORT_MIN, i = 0; i < rt->nb_rtsp_streams; ++i) {\n\n char transport[2048];\n\n\n\n /**\n\n * WMS serves all UDP data over a single connection, the RTX, which\n\n * isn't necessarily the first in the SDP but has to be the first\n\n * to be set up, else the second/third SETUP will fail with a 461.\n\n */\n\n if (lower_transport == RTSP_LOWER_TRANSPORT_UDP &&\n\n rt->server_type == RTSP_SERVER_WMS) {\n\n if (i == 0) {\n\n /* rtx first */\n\n for (rtx = 0; rtx < rt->nb_rtsp_streams; rtx++) {\n\n int len = strlen(rt->rtsp_streams[rtx]->control_url);\n\n if (len >= 4 &&\n\n !strcmp(rt->rtsp_streams[rtx]->control_url + len - 4, \"/rtx\"))\n\n break;\n\n }\n\n if (rtx == rt->nb_rtsp_streams)\n\n return -1; /* no RTX found */\n\n rtsp_st = rt->rtsp_streams[rtx];\n\n } else\n\n rtsp_st = rt->rtsp_streams[i > rtx ? i : i - 1];\n\n } else\n\n rtsp_st = rt->rtsp_streams[i];\n\n\n\n /* RTP/UDP */\n\n if (lower_transport == RTSP_LOWER_TRANSPORT_UDP) {\n\n char buf[256];\n\n\n\n if (rt->server_type == RTSP_SERVER_WMS && i > 1) {\n\n port = reply->transports[0].client_port_min;\n\n goto have_port;\n\n }\n\n\n\n /* first try in specified port range */\n\n if (RTSP_RTP_PORT_MIN != 0) {\n\n while(j <= RTSP_RTP_PORT_MAX) {\n\n snprintf(buf, sizeof(buf), \"rtp://%s?localport=%d\", host, j);\n\n j += 2; /* we will use two port by rtp stream (rtp and rtcp) */\n\n if (url_open(&rtsp_st->rtp_handle, buf, URL_RDWR) == 0) {\n\n goto rtp_opened;\n\n }\n\n }\n\n }\n\n\n\n/* then try on any port\n\n** if (url_open(&rtsp_st->rtp_handle, \"rtp://\", URL_RDONLY) < 0) {\n\n** err = AVERROR_INVALIDDATA;\n\n** goto fail;\n\n** }\n\n*/\n\n\n\n rtp_opened:\n\n port = rtp_get_local_port(rtsp_st->rtp_handle);\n\n have_port:\n\n snprintf(transport, sizeof(transport) - 1,\n\n \"%s/UDP;\", trans_pref);\n\n if (rt->server_type != RTSP_SERVER_REAL)\n\n av_strlcat(transport, \"unicast;\", sizeof(transport));\n\n av_strlcatf(transport, sizeof(transport),\n\n \"client_port=%d\", port);\n\n if (rt->transport == RTSP_TRANSPORT_RTP &&\n\n !(rt->server_type == RTSP_SERVER_WMS && i > 0))\n\n av_strlcatf(transport, sizeof(transport), \"-%d\", port + 1);\n\n }\n\n\n\n /* RTP/TCP */\n\n else if (lower_transport == RTSP_LOWER_TRANSPORT_TCP) {\n\n /** For WMS streams, the application streams are only used for\n\n * UDP. When trying to set it up for TCP streams, the server\n\n * will return an error. Therefore, we skip those streams. */\n\n if (rt->server_type == RTSP_SERVER_WMS &&\n\n s->streams[rtsp_st->stream_index]->codec->codec_type == CODEC_TYPE_DATA)\n\n continue;\n\n snprintf(transport, sizeof(transport) - 1,\n\n \"%s/TCP;\", trans_pref);\n\n if (rt->server_type == RTSP_SERVER_WMS)\n\n av_strlcat(transport, \"unicast;\", sizeof(transport));\n\n av_strlcatf(transport, sizeof(transport),\n\n \"interleaved=%d-%d\",\n\n interleave, interleave + 1);\n\n interleave += 2;\n\n }\n\n\n\n else if (lower_transport == RTSP_LOWER_TRANSPORT_UDP_MULTICAST) {\n\n snprintf(transport, sizeof(transport) - 1,\n\n \"%s/UDP;multicast\", trans_pref);\n\n }\n\n if (rt->server_type == RTSP_SERVER_REAL ||\n\n rt->server_type == RTSP_SERVER_WMS)\n\n av_strlcat(transport, \";mode=play\", sizeof(transport));\n\n snprintf(cmd, sizeof(cmd),\n\n \"SETUP %s RTSP/1.0\\r\\n\"\n\n \"Transport: %s\\r\\n\",\n\n rtsp_st->control_url, transport);\n\n if (i == 0 && rt->server_type == RTSP_SERVER_REAL) {\n\n char real_res[41], real_csum[9];\n\n ff_rdt_calc_response_and_checksum(real_res, real_csum,\n\n real_challenge);\n\n av_strlcatf(cmd, sizeof(cmd),\n\n \"If-Match: %s\\r\\n\"\n\n \"RealChallenge2: %s, sd=%s\\r\\n\",\n\n rt->session_id, real_res, real_csum);\n\n }\n\n rtsp_send_cmd(s, cmd, reply, NULL);\n\n if (reply->status_code == 461 /* Unsupported protocol */ && i == 0) {\n\n err = 1;\n\n goto fail;\n\n } else if (reply->status_code != RTSP_STATUS_OK ||\n\n reply->nb_transports != 1) {\n\n err = AVERROR_INVALIDDATA;\n\n goto fail;\n\n }\n\n\n\n /* XXX: same protocol for all streams is required */\n\n if (i > 0) {\n\n if (reply->transports[0].lower_transport != rt->lower_transport ||\n\n reply->transports[0].transport != rt->transport) {\n\n err = AVERROR_INVALIDDATA;\n\n goto fail;\n\n }\n\n } else {\n\n rt->lower_transport = reply->transports[0].lower_transport;\n\n rt->transport = reply->transports[0].transport;\n\n }\n\n\n\n /* close RTP connection if not choosen */\n\n if (reply->transports[0].lower_transport != RTSP_LOWER_TRANSPORT_UDP &&\n\n (lower_transport == RTSP_LOWER_TRANSPORT_UDP)) {\n\n url_close(rtsp_st->rtp_handle);\n\n rtsp_st->rtp_handle = NULL;\n\n }\n\n\n\n switch(reply->transports[0].lower_transport) {\n\n case RTSP_LOWER_TRANSPORT_TCP:\n\n rtsp_st->interleaved_min = reply->transports[0].interleaved_min;\n\n rtsp_st->interleaved_max = reply->transports[0].interleaved_max;\n\n break;\n\n\n\n case RTSP_LOWER_TRANSPORT_UDP:\n\n {\n\n char url[1024];\n\n\n\n /* XXX: also use address if specified */\n\n snprintf(url, sizeof(url), \"rtp://%s:%d\",\n\n host, reply->transports[0].server_port_min);\n\n if (!(rt->server_type == RTSP_SERVER_WMS && i > 1) &&\n\n rtp_set_remote_url(rtsp_st->rtp_handle, url) < 0) {\n\n err = AVERROR_INVALIDDATA;\n\n goto fail;\n\n }\n\n }\n\n break;\n\n case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:\n\n {\n\n char url[1024];\n\n struct in_addr in;\n\n int port, ttl;\n\n\n\n if (reply->transports[0].destination) {\n\n in.s_addr = htonl(reply->transports[0].destination);\n\n port = reply->transports[0].port_min;\n\n ttl = reply->transports[0].ttl;\n\n } else {\n\n in = rtsp_st->sdp_ip;\n\n port = rtsp_st->sdp_port;\n\n ttl = rtsp_st->sdp_ttl;\n\n }\n\n snprintf(url, sizeof(url), \"rtp://%s:%d?ttl=%d\",\n\n inet_ntoa(in), port, ttl);\n\n if (url_open(&rtsp_st->rtp_handle, url, URL_RDWR) < 0) {\n\n err = AVERROR_INVALIDDATA;\n\n goto fail;\n\n }\n\n }\n\n break;\n\n }\n\n\n\n if ((err = rtsp_open_transport_ctx(s, rtsp_st)))\n\n goto fail;\n\n }\n\n\n\n if (reply->timeout > 0)\n\n rt->timeout = reply->timeout;\n\n\n\n if (rt->server_type == RTSP_SERVER_REAL)\n\n rt->need_subscription = 1;\n\n\n\n return 0;\n\n\n\nfail:\n\n for (i=0; inb_rtsp_streams; i++) {\n\n if (rt->rtsp_streams[i]->rtp_handle) {\n\n url_close(rt->rtsp_streams[i]->rtp_handle);\n\n rt->rtsp_streams[i]->rtp_handle = NULL;\n\n }\n\n }\n\n return err;\n\n}\n", + "output": "0", + "index": 16647 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int qcow_open(BlockDriverState *bs, QDict *options, int flags,\n\n Error **errp)\n\n{\n\n BDRVQcowState *s = bs->opaque;\n\n int len, i, shift, ret;\n\n QCowHeader header;\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 be32_to_cpus(&header.mtime);\n\n be64_to_cpus(&header.size);\n\n be32_to_cpus(&header.crypt_method);\n\n be64_to_cpus(&header.l1_table_offset);\n\n\n\n if (header.magic != QCOW_MAGIC) {\n\n error_setg(errp, \"Image not in qcow format\");\n\n ret = -EINVAL;\n\n goto fail;\n\n }\n\n if (header.version != QCOW_VERSION) {\n\n char version[64];\n\n snprintf(version, sizeof(version), \"QCOW version %\" PRIu32,\n\n header.version);\n\n error_set(errp, QERR_UNKNOWN_BLOCK_FORMAT_FEATURE,\n\n bs->device_name, \"qcow\", version);\n\n ret = -ENOTSUP;\n\n goto fail;\n\n }\n\n\n\n if (header.size <= 1) {\n\n error_setg(errp, \"Image size is too small (must be at least 2 bytes)\");\n\n ret = -EINVAL;\n\n goto fail;\n\n }\n\n if (header.cluster_bits < 9 || header.cluster_bits > 16) {\n\n error_setg(errp, \"Cluster size must be between 512 and 64k\");\n\n ret = -EINVAL;\n\n goto fail;\n\n }\n\n\n\n /* l2_bits specifies number of entries; storing a uint64_t in each entry,\n\n * so bytes = num_entries << 3. */\n\n if (header.l2_bits < 9 - 3 || header.l2_bits > 16 - 3) {\n\n error_setg(errp, \"L2 table size must be between 512 and 64k\");\n\n ret = -EINVAL;\n\n goto fail;\n\n }\n\n\n\n if (header.crypt_method > QCOW_CRYPT_AES) {\n\n error_setg(errp, \"invalid encryption method in qcow header\");\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 = header.l2_bits;\n\n s->l2_size = 1 << s->l2_bits;\n\n bs->total_sectors = header.size / 512;\n\n s->cluster_offset_mask = (1LL << (63 - s->cluster_bits)) - 1;\n\n\n\n /* read the level 1 table */\n\n shift = s->cluster_bits + s->l2_bits;\n\n if (header.size > UINT64_MAX - (1LL << shift)) {\n\n error_setg(errp, \"Image too large\");\n\n ret = -EINVAL;\n\n goto fail;\n\n } else {\n\n uint64_t l1_size = (header.size + (1LL << shift) - 1) >> shift;\n\n if (l1_size > INT_MAX / sizeof(uint64_t)) {\n\n error_setg(errp, \"Image too large\");\n\n ret = -EINVAL;\n\n goto fail;\n\n }\n\n s->l1_size = l1_size;\n\n }\n\n\n\n s->l1_table_offset = header.l1_table_offset;\n\n s->l1_table = g_malloc(s->l1_size * sizeof(uint64_t));\n\n\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\n\n for(i = 0;i < s->l1_size; i++) {\n\n be64_to_cpus(&s->l1_table[i]);\n\n }\n\n /* alloc L2 cache */\n\n s->l2_cache = g_malloc(s->l2_size * L2_CACHE_SIZE * sizeof(uint64_t));\n\n s->cluster_cache = g_malloc(s->cluster_size);\n\n s->cluster_data = g_malloc(s->cluster_size);\n\n s->cluster_cache_offset = -1;\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 /* Disable migration when qcow images are used */\n\n error_set(&s->migration_blocker,\n\n QERR_BLOCK_FORMAT_FEATURE_NOT_SUPPORTED,\n\n \"qcow\", bs->device_name, \"live migration\");\n\n migrate_add_blocker(s->migration_blocker);\n\n\n\n qemu_co_mutex_init(&s->lock);\n\n return 0;\n\n\n\n fail:\n\n g_free(s->l1_table);\n\n g_free(s->l2_cache);\n\n g_free(s->cluster_cache);\n\n g_free(s->cluster_data);\n\n return ret;\n\n}\n", + "output": "1", + "index": 383 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int bdrv_open_common(BlockDriverState *bs, BlockDriverState *file,\n QDict *options, int flags, BlockDriver *drv, Error **errp)\n{\n int ret, open_flags;\n const char *filename;\n const char *node_name = NULL;\n Error *local_err = NULL;\n assert(drv != NULL);\n assert(bs->file == NULL);\n assert(options != NULL && bs->options != options);\n if (file != NULL) {\n filename = file->filename;\n } else {\n filename = qdict_get_try_str(options, \"filename\");\n if (drv->bdrv_needs_filename && !filename) {\n error_setg(errp, \"The '%s' block driver requires a file name\",\n drv->format_name);\n return -EINVAL;\n trace_bdrv_open_common(bs, filename ?: \"\", flags, drv->format_name);\n node_name = qdict_get_try_str(options, \"node-name\");\n bdrv_assign_node_name(bs, node_name, &local_err);\n if (local_err) {\n error_propagate(errp, local_err);\n return -EINVAL;\n qdict_del(options, \"node-name\");\n /* bdrv_open() with directly using a protocol as drv. This layer is already\n * opened, so assign it to bs (while file becomes a closed BlockDriverState)\n * and return immediately. */\n if (file != NULL && drv->bdrv_file_open) {\n bdrv_swap(file, bs);\n return 0;\n bs->open_flags = flags;\n bs->guest_block_size = 512;\n bs->request_alignment = 512;\n bs->zero_beyond_eof = true;\n open_flags = bdrv_open_flags(bs, flags);\n bs->read_only = !(open_flags & BDRV_O_RDWR);\n if (use_bdrv_whitelist && !bdrv_is_whitelisted(drv, bs->read_only)) {\n error_setg(errp,\n !bs->read_only && bdrv_is_whitelisted(drv, true)\n ? \"Driver '%s' can only be used for read-only devices\"\n : \"Driver '%s' is not whitelisted\",\n drv->format_name);\n return -ENOTSUP;\n assert(bs->copy_on_read == 0); /* bdrv_new() and bdrv_close() make it so */\n if (flags & BDRV_O_COPY_ON_READ) {\n if (!bs->read_only) {\n bdrv_enable_copy_on_read(bs);\n } else {\n error_setg(errp, \"Can't use copy-on-read on read-only device\");\n return -EINVAL;\n if (filename != NULL) {\n pstrcpy(bs->filename, sizeof(bs->filename), filename);\n } else {\n bs->filename[0] = '\\0';\n pstrcpy(bs->exact_filename, sizeof(bs->exact_filename), bs->filename);\n bs->drv = drv;\n bs->opaque = g_malloc0(drv->instance_size);\n bs->enable_write_cache = !!(flags & BDRV_O_CACHE_WB);\n /* Open the image, either directly or using a protocol */\n if (drv->bdrv_file_open) {\n assert(file == NULL);\n assert(!drv->bdrv_needs_filename || filename != NULL);\n ret = drv->bdrv_file_open(bs, options, open_flags, &local_err);\n } else {\n if (file == NULL) {\n error_setg(errp, \"Can't use '%s' as a block driver for the \"\n \"protocol level\", drv->format_name);\n ret = -EINVAL;\n goto free_and_fail;\n bs->file = file;\n ret = drv->bdrv_open(bs, options, open_flags, &local_err);\n if (ret < 0) {\n if (local_err) {\n error_propagate(errp, local_err);\n } else if (bs->filename[0]) {\n error_setg_errno(errp, -ret, \"Could not open '%s'\", bs->filename);\n } else {\n error_setg_errno(errp, -ret, \"Could not open image\");\n goto free_and_fail;\n ret = refresh_total_sectors(bs, bs->total_sectors);\n if (ret < 0) {\n error_setg_errno(errp, -ret, \"Could not refresh total sector count\");\n goto free_and_fail;\n bdrv_refresh_limits(bs, &local_err);\n if (local_err) {\n error_propagate(errp, local_err);\n ret = -EINVAL;\n goto free_and_fail;\n assert(bdrv_opt_mem_align(bs) != 0);\n assert((bs->request_alignment != 0) || bs->sg);\n return 0;\nfree_and_fail:\n bs->file = NULL;\n g_free(bs->opaque);\n bs->opaque = NULL;\n bs->drv = NULL;\n return ret;", + "output": "1", + "index": 21382 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int ulti_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 UltimotionDecodeContext *s=avctx->priv_data;\n\n int modifier = 0;\n\n int uniq = 0;\n\n int mode = 0;\n\n int blocks = 0;\n\n int done = 0;\n\n int x = 0, y = 0;\n\n int i;\n\n int skip;\n\n int tmp;\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 while(!done) {\n\n int idx;\n\n if(blocks >= s->blocks || y >= s->height)\n\n break;//all blocks decoded\n\n\n\n idx = *buf++;\n\n if((idx & 0xF8) == 0x70) {\n\n switch(idx) {\n\n case 0x70: //change modifier\n\n modifier = *buf++;\n\n if(modifier>1)\n\n av_log(avctx, AV_LOG_INFO, \"warning: modifier must be 0 or 1, got %i\\n\", modifier);\n\n break;\n\n case 0x71: // set uniq flag\n\n uniq = 1;\n\n break;\n\n case 0x72: //toggle mode\n\n mode = !mode;\n\n break;\n\n case 0x73: //end-of-frame\n\n done = 1;\n\n break;\n\n case 0x74: //skip some blocks\n\n skip = *buf++;\n\n if ((blocks + skip) >= s->blocks)\n\n break;\n\n blocks += skip;\n\n x += skip * 8;\n\n while(x >= s->width) {\n\n x -= s->width;\n\n y += 8;\n\n }\n\n break;\n\n default:\n\n av_log(avctx, AV_LOG_INFO, \"warning: unknown escape 0x%02X\\n\", idx);\n\n }\n\n } else { //handle one block\n\n int code;\n\n int cf;\n\n int angle = 0;\n\n uint8_t Y[4]; // luma samples of block\n\n int tx = 0, ty = 0; //coords of subblock\n\n int chroma = 0;\n\n if (mode || uniq) {\n\n uniq = 0;\n\n cf = 1;\n\n chroma = 0;\n\n } else {\n\n cf = 0;\n\n if (idx)\n\n chroma = *buf++;\n\n }\n\n for (i = 0; i < 4; i++) { // for every subblock\n\n code = (idx >> (6 - i*2)) & 3; //extract 2 bits\n\n if(!code) //skip subblock\n\n continue;\n\n if(cf)\n\n chroma = *buf++;\n\n tx = x + block_coords[i * 2];\n\n ty = y + block_coords[(i * 2) + 1];\n\n switch(code) {\n\n case 1:\n\n tmp = *buf++;\n\n\n\n angle = angle_by_index[(tmp >> 6) & 0x3];\n\n\n\n Y[0] = tmp & 0x3F;\n\n Y[1] = Y[0];\n\n\n\n if (angle) {\n\n Y[2] = Y[0]+1;\n\n if (Y[2] > 0x3F)\n\n Y[2] = 0x3F;\n\n Y[3] = Y[2];\n\n } else {\n\n Y[2] = Y[0];\n\n Y[3] = Y[0];\n\n }\n\n break;\n\n\n\n case 2:\n\n if (modifier) { // unpack four luma samples\n\n tmp = bytestream_get_be24(&buf);\n\n\n\n Y[0] = (tmp >> 18) & 0x3F;\n\n Y[1] = (tmp >> 12) & 0x3F;\n\n Y[2] = (tmp >> 6) & 0x3F;\n\n Y[3] = tmp & 0x3F;\n\n angle = 16;\n\n } else { // retrieve luma samples from codebook\n\n tmp = bytestream_get_be16(&buf);\n\n\n\n angle = (tmp >> 12) & 0xF;\n\n tmp &= 0xFFF;\n\n tmp <<= 2;\n\n Y[0] = s->ulti_codebook[tmp];\n\n Y[1] = s->ulti_codebook[tmp + 1];\n\n Y[2] = s->ulti_codebook[tmp + 2];\n\n Y[3] = s->ulti_codebook[tmp + 3];\n\n }\n\n break;\n\n\n\n case 3:\n\n if (modifier) { // all 16 luma samples\n\n uint8_t Luma[16];\n\n\n\n tmp = bytestream_get_be24(&buf);\n\n Luma[0] = (tmp >> 18) & 0x3F;\n\n Luma[1] = (tmp >> 12) & 0x3F;\n\n Luma[2] = (tmp >> 6) & 0x3F;\n\n Luma[3] = tmp & 0x3F;\n\n\n\n tmp = bytestream_get_be24(&buf);\n\n Luma[4] = (tmp >> 18) & 0x3F;\n\n Luma[5] = (tmp >> 12) & 0x3F;\n\n Luma[6] = (tmp >> 6) & 0x3F;\n\n Luma[7] = tmp & 0x3F;\n\n\n\n tmp = bytestream_get_be24(&buf);\n\n Luma[8] = (tmp >> 18) & 0x3F;\n\n Luma[9] = (tmp >> 12) & 0x3F;\n\n Luma[10] = (tmp >> 6) & 0x3F;\n\n Luma[11] = tmp & 0x3F;\n\n\n\n tmp = bytestream_get_be24(&buf);\n\n Luma[12] = (tmp >> 18) & 0x3F;\n\n Luma[13] = (tmp >> 12) & 0x3F;\n\n Luma[14] = (tmp >> 6) & 0x3F;\n\n Luma[15] = tmp & 0x3F;\n\n\n\n ulti_convert_yuv(&s->frame, tx, ty, Luma, chroma);\n\n } else {\n\n tmp = *buf++;\n\n if(tmp & 0x80) {\n\n angle = (tmp >> 4) & 0x7;\n\n tmp = (tmp << 8) + *buf++;\n\n Y[0] = (tmp >> 6) & 0x3F;\n\n Y[1] = tmp & 0x3F;\n\n Y[2] = (*buf++) & 0x3F;\n\n Y[3] = (*buf++) & 0x3F;\n\n ulti_grad(&s->frame, tx, ty, Y, chroma, angle); //draw block\n\n } else { // some patterns\n\n int f0, f1;\n\n f0 = *buf++;\n\n f1 = tmp;\n\n Y[0] = (*buf++) & 0x3F;\n\n Y[1] = (*buf++) & 0x3F;\n\n ulti_pattern(&s->frame, tx, ty, f1, f0, Y[0], Y[1], chroma);\n\n }\n\n }\n\n break;\n\n }\n\n if(code != 3)\n\n ulti_grad(&s->frame, tx, ty, Y, chroma, angle); // draw block\n\n }\n\n blocks++;\n\n x += 8;\n\n if(x >= s->width) {\n\n x = 0;\n\n y += 8;\n\n }\n\n }\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": 17729 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static av_cold int atrac3_decode_init(AVCodecContext *avctx)\n\n{\n\n int i, ret;\n\n int version, delay, samples_per_frame, frame_factor;\n\n const uint8_t *edata_ptr = avctx->extradata;\n\n ATRAC3Context *q = avctx->priv_data;\n\n\n\n if (avctx->channels <= 0 || avctx->channels > 2) {\n\n av_log(avctx, AV_LOG_ERROR, \"Channel configuration error!\\n\");\n\n\n }\n\n\n\n /* Take care of the codec-specific extradata. */\n\n if (avctx->extradata_size == 14) {\n\n /* Parse the extradata, WAV format */\n\n av_log(avctx, AV_LOG_DEBUG, \"[0-1] %d\\n\",\n\n bytestream_get_le16(&edata_ptr)); // Unknown value always 1\n\n edata_ptr += 4; // samples per channel\n\n q->coding_mode = bytestream_get_le16(&edata_ptr);\n\n av_log(avctx, AV_LOG_DEBUG,\"[8-9] %d\\n\",\n\n bytestream_get_le16(&edata_ptr)); //Dupe of coding mode\n\n frame_factor = bytestream_get_le16(&edata_ptr); // Unknown always 1\n\n av_log(avctx, AV_LOG_DEBUG,\"[12-13] %d\\n\",\n\n bytestream_get_le16(&edata_ptr)); // Unknown always 0\n\n\n\n /* setup */\n\n samples_per_frame = SAMPLES_PER_FRAME * avctx->channels;\n\n version = 4;\n\n delay = 0x88E;\n\n q->coding_mode = q->coding_mode ? JOINT_STEREO : STEREO;\n\n q->scrambled_stream = 0;\n\n\n\n if (avctx->block_align != 96 * avctx->channels * frame_factor &&\n\n avctx->block_align != 152 * avctx->channels * frame_factor &&\n\n avctx->block_align != 192 * avctx->channels * frame_factor) {\n\n av_log(avctx, AV_LOG_ERROR, \"Unknown frame/channel/frame_factor \"\n\n \"configuration %d/%d/%d\\n\", avctx->block_align,\n\n avctx->channels, frame_factor);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n } else if (avctx->extradata_size == 10) {\n\n /* Parse the extradata, RM format. */\n\n version = bytestream_get_be32(&edata_ptr);\n\n samples_per_frame = bytestream_get_be16(&edata_ptr);\n\n delay = bytestream_get_be16(&edata_ptr);\n\n q->coding_mode = bytestream_get_be16(&edata_ptr);\n\n q->scrambled_stream = 1;\n\n\n\n } else {\n\n av_log(NULL, AV_LOG_ERROR, \"Unknown extradata size %d.\\n\",\n\n avctx->extradata_size);\n\n\n }\n\n\n\n /* Check the extradata */\n\n\n\n if (version != 4) {\n\n av_log(avctx, AV_LOG_ERROR, \"Version %d != 4.\\n\", version);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n if (samples_per_frame != SAMPLES_PER_FRAME &&\n\n samples_per_frame != SAMPLES_PER_FRAME * 2) {\n\n av_log(avctx, AV_LOG_ERROR, \"Unknown amount of samples per frame %d.\\n\",\n\n samples_per_frame);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n if (delay != 0x88E) {\n\n av_log(avctx, AV_LOG_ERROR, \"Unknown amount of delay %x != 0x88E.\\n\",\n\n delay);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n if (q->coding_mode == STEREO)\n\n av_log(avctx, AV_LOG_DEBUG, \"Normal stereo detected.\\n\");\n\n else if (q->coding_mode == JOINT_STEREO)\n\n av_log(avctx, AV_LOG_DEBUG, \"Joint stereo detected.\\n\");\n\n else {\n\n av_log(avctx, AV_LOG_ERROR, \"Unknown channel coding mode %x!\\n\",\n\n q->coding_mode);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n if (avctx->block_align >= UINT_MAX / 2)\n\n\n\n\n q->decoded_bytes_buffer = av_mallocz(FFALIGN(avctx->block_align, 4) +\n\n FF_INPUT_BUFFER_PADDING_SIZE);\n\n if (q->decoded_bytes_buffer == NULL)\n\n return AVERROR(ENOMEM);\n\n\n\n avctx->sample_fmt = AV_SAMPLE_FMT_FLTP;\n\n\n\n /* initialize the MDCT transform */\n\n if ((ret = ff_mdct_init(&q->mdct_ctx, 9, 1, 1.0 / 32768)) < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"Error initializing MDCT\\n\");\n\n av_freep(&q->decoded_bytes_buffer);\n\n return ret;\n\n }\n\n\n\n /* init the joint-stereo decoding data */\n\n q->weighting_delay[0] = 0;\n\n q->weighting_delay[1] = 7;\n\n q->weighting_delay[2] = 0;\n\n q->weighting_delay[3] = 7;\n\n q->weighting_delay[4] = 0;\n\n q->weighting_delay[5] = 7;\n\n\n\n for (i = 0; i < 4; i++) {\n\n q->matrix_coeff_index_prev[i] = 3;\n\n q->matrix_coeff_index_now[i] = 3;\n\n q->matrix_coeff_index_next[i] = 3;\n\n }\n\n\n\n avpriv_float_dsp_init(&q->fdsp, avctx->flags & CODEC_FLAG_BITEXACT);\n\n ff_fmt_convert_init(&q->fmt_conv, avctx);\n\n\n\n q->units = av_mallocz(sizeof(*q->units) * avctx->channels);\n\n if (!q->units) {\n\n atrac3_decode_close(avctx);\n\n return AVERROR(ENOMEM);\n\n }\n\n\n\n avcodec_get_frame_defaults(&q->frame);\n\n avctx->coded_frame = &q->frame;\n\n\n\n return 0;\n\n}", + "output": "1", + "index": 26512 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int get_qPy_pred(HEVCContext *s, int xC, int yC,\n\n int xBase, int yBase, int log2_cb_size)\n\n{\n\n HEVCLocalContext *lc = s->HEVClc;\n\n int ctb_size_mask = (1 << s->sps->log2_ctb_size) - 1;\n\n int MinCuQpDeltaSizeMask = (1 << (s->sps->log2_ctb_size -\n\n s->pps->diff_cu_qp_delta_depth)) - 1;\n\n int xQgBase = xBase - (xBase & MinCuQpDeltaSizeMask);\n\n int yQgBase = yBase - (yBase & MinCuQpDeltaSizeMask);\n\n int min_cb_width = s->sps->min_cb_width;\n\n int min_cb_height = s->sps->min_cb_height;\n\n int x_cb = xQgBase >> s->sps->log2_min_cb_size;\n\n int y_cb = yQgBase >> s->sps->log2_min_cb_size;\n\n int availableA = (xBase & ctb_size_mask) &&\n\n (xQgBase & ctb_size_mask);\n\n int availableB = (yBase & ctb_size_mask) &&\n\n (yQgBase & ctb_size_mask);\n\n int qPy_pred, qPy_a, qPy_b;\n\n\n\n // qPy_pred\n\n if (lc->first_qp_group || (!xQgBase && !yQgBase)) {\n\n lc->first_qp_group = !lc->tu.is_cu_qp_delta_coded;\n\n qPy_pred = s->sh.slice_qp;\n\n } else {\n\n qPy_pred = lc->qp_y;\n\n if (log2_cb_size < s->sps->log2_ctb_size -\n\n s->pps->diff_cu_qp_delta_depth) {\n\n static const int offsetX[8][8] = {\n\n { -1, 1, 3, 1, 7, 1, 3, 1 },\n\n { 0, 0, 0, 0, 0, 0, 0, 0 },\n\n { 1, 3, 1, 3, 1, 3, 1, 3 },\n\n { 2, 2, 2, 2, 2, 2, 2, 2 },\n\n { 3, 5, 7, 5, 3, 5, 7, 5 },\n\n { 4, 4, 4, 4, 4, 4, 4, 4 },\n\n { 5, 7, 5, 7, 5, 7, 5, 7 },\n\n { 6, 6, 6, 6, 6, 6, 6, 6 }\n\n };\n\n static const int offsetY[8][8] = {\n\n { 7, 0, 1, 2, 3, 4, 5, 6 },\n\n { 0, 1, 2, 3, 4, 5, 6, 7 },\n\n { 1, 0, 3, 2, 5, 4, 7, 6 },\n\n { 0, 1, 2, 3, 4, 5, 6, 7 },\n\n { 3, 0, 1, 2, 7, 4, 5, 6 },\n\n { 0, 1, 2, 3, 4, 5, 6, 7 },\n\n { 1, 0, 3, 2, 5, 4, 7, 6 },\n\n { 0, 1, 2, 3, 4, 5, 6, 7 }\n\n };\n\n int xC0b = (xC - (xC & ctb_size_mask)) >> s->sps->log2_min_cb_size;\n\n int yC0b = (yC - (yC & ctb_size_mask)) >> s->sps->log2_min_cb_size;\n\n int idxX = (xQgBase & ctb_size_mask) >> s->sps->log2_min_cb_size;\n\n int idxY = (yQgBase & ctb_size_mask) >> s->sps->log2_min_cb_size;\n\n int idx_mask = ctb_size_mask >> s->sps->log2_min_cb_size;\n\n int x, y;\n\n\n\n x = FFMIN(xC0b + offsetX[idxX][idxY], min_cb_width - 1);\n\n y = FFMIN(yC0b + (offsetY[idxX][idxY] & idx_mask), min_cb_height - 1);\n\n\n\n if (xC0b == (lc->start_of_tiles_x >> s->sps->log2_min_cb_size) &&\n\n offsetX[idxX][idxY] == -1) {\n\n x = (lc->end_of_tiles_x >> s->sps->log2_min_cb_size) - 1;\n\n y = yC0b - 1;\n\n }\n\n qPy_pred = s->qp_y_tab[y * min_cb_width + x];\n\n }\n\n }\n\n\n\n // qPy_a\n\n if (availableA == 0)\n\n qPy_a = qPy_pred;\n\n else\n\n qPy_a = s->qp_y_tab[(x_cb - 1) + y_cb * min_cb_width];\n\n\n\n // qPy_b\n\n if (availableB == 0)\n\n qPy_b = qPy_pred;\n\n else\n\n qPy_b = s->qp_y_tab[x_cb + (y_cb - 1) * min_cb_width];\n\n\n\n av_assert2(qPy_a >= -s->sps->qp_bd_offset && qPy_a < 52);\n\n av_assert2(qPy_b >= -s->sps->qp_bd_offset && qPy_b < 52);\n\n\n\n return (qPy_a + qPy_b + 1) >> 1;\n\n}\n", + "output": "1", + "index": 12492 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int mjpeg_decode_scan(MJpegDecodeContext *s, int nb_components, int Ah, int Al,\n\n const uint8_t *mb_bitmask, const AVFrame *reference){\n\n int i, mb_x, mb_y;\n\n uint8_t* data[MAX_COMPONENTS];\n\n const uint8_t *reference_data[MAX_COMPONENTS];\n\n int linesize[MAX_COMPONENTS];\n\n GetBitContext mb_bitmask_gb;\n\n\n\n if (mb_bitmask) {\n\n init_get_bits(&mb_bitmask_gb, mb_bitmask, s->mb_width*s->mb_height);\n\n }\n\n\n\n if(s->flipped && s->avctx->flags & CODEC_FLAG_EMU_EDGE) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"Can not flip image with CODEC_FLAG_EMU_EDGE set!\\n\");\n\n s->flipped = 0;\n\n }\n\n for(i=0; i < nb_components; i++) {\n\n int c = s->comp_index[i];\n\n data[c] = s->picture_ptr->data[c];\n\n reference_data[c] = reference ? reference->data[c] : NULL;\n\n linesize[c]=s->linesize[c];\n\n s->coefs_finished[c] |= 1;\n\n if(s->flipped) {\n\n //picture should be flipped upside-down for this codec\n\n int offset = (linesize[c] * (s->v_scount[i] * (8 * s->mb_height -((s->height/s->v_max)&7)) - 1 ));\n\n data[c] += offset;\n\n reference_data[c] += offset;\n\n linesize[c] *= -1;\n\n }\n\n }\n\n\n\n for(mb_y = 0; mb_y < s->mb_height; mb_y++) {\n\n for(mb_x = 0; mb_x < s->mb_width; mb_x++) {\n\n const int copy_mb = mb_bitmask && !get_bits1(&mb_bitmask_gb);\n\n\n\n if (s->restart_interval && !s->restart_count)\n\n s->restart_count = s->restart_interval;\n\n\n\n if(get_bits_count(&s->gb)>s->gb.size_in_bits){\n\n av_log(s->avctx, AV_LOG_ERROR, \"overread %d\\n\", get_bits_count(&s->gb) - s->gb.size_in_bits);\n\n return -1;\n\n }\n\n for(i=0;inb_blocks[i];\n\n c = s->comp_index[i];\n\n h = s->h_scount[i];\n\n v = s->v_scount[i];\n\n x = 0;\n\n y = 0;\n\n for(j=0;j> s->avctx->lowres);\n\n\n\n if(s->interlaced && s->bottom_field)\n\n block_offset += linesize[c] >> 1;\n\n ptr = data[c] + block_offset;\n\n if(!s->progressive) {\n\n if (copy_mb) {\n\n mjpeg_copy_block(ptr, reference_data[c] + block_offset, linesize[c], s->avctx->lowres);\n\n } else {\n\n s->dsp.clear_block(s->block);\n\n if(decode_block(s, s->block, i,\n\n s->dc_index[i], s->ac_index[i],\n\n s->quant_matrixes[ s->quant_index[c] ]) < 0) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"error y=%d x=%d\\n\", mb_y, mb_x);\n\n return -1;\n\n }\n\n s->dsp.idct_put(ptr, linesize[c], s->block);\n\n }\n\n } else {\n\n int block_idx = s->block_stride[c] * (v * mb_y + y) + (h * mb_x + x);\n\n DCTELEM *block = s->blocks[c][block_idx];\n\n if(Ah)\n\n block[0] += get_bits1(&s->gb) * s->quant_matrixes[ s->quant_index[c] ][0] << Al;\n\n else if(decode_dc_progressive(s, block, i, s->dc_index[i], s->quant_matrixes[ s->quant_index[c] ], Al) < 0) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"error y=%d x=%d\\n\", mb_y, mb_x);\n\n return -1;\n\n }\n\n }\n\n// av_log(s->avctx, AV_LOG_DEBUG, \"mb: %d %d processed\\n\", mb_y, mb_x);\n\n//av_log(NULL, AV_LOG_DEBUG, \"%d %d %d %d %d %d %d %d \\n\", mb_x, mb_y, x, y, c, s->bottom_field, (v * mb_y + y) * 8, (h * mb_x + x) * 8);\n\n if (++x == h) {\n\n x = 0;\n\n y++;\n\n }\n\n }\n\n }\n\n\n\n if (s->restart_interval && show_bits(&s->gb, 8) == 0xFF){ /* skip RSTn */\n\n --s->restart_count;\n\n align_get_bits(&s->gb);\n\n while(show_bits(&s->gb, 8) == 0xFF)\n\n skip_bits(&s->gb, 8);\n\n skip_bits(&s->gb, 8);\n\n for (i=0; ilast_dc[i] = 1024;\n\n }\n\n }\n\n }\n\n return 0;\n\n}\n", + "output": "0", + "index": 24077 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "void axisdev88_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 CRISCPU *cpu;\n\n CPUCRISState *env;\n\n DeviceState *dev;\n\n SysBusDevice *s;\n\n DriveInfo *nand;\n\n qemu_irq irq[30], nmi[2];\n\n void *etraxfs_dmac;\n\n struct etraxfs_dma_client *dma_eth;\n\n int i;\n\n MemoryRegion *address_space_mem = get_system_memory();\n\n MemoryRegion *phys_ram = g_new(MemoryRegion, 1);\n\n MemoryRegion *phys_intmem = g_new(MemoryRegion, 1);\n\n\n\n /* init CPUs */\n\n if (cpu_model == NULL) {\n\n cpu_model = \"crisv32\";\n\n }\n\n cpu = cpu_cris_init(cpu_model);\n\n env = &cpu->env;\n\n\n\n /* allocate RAM */\n\n memory_region_allocate_system_memory(phys_ram, NULL, \"axisdev88.ram\",\n\n ram_size);\n\n memory_region_add_subregion(address_space_mem, 0x40000000, phys_ram);\n\n\n\n /* The ETRAX-FS has 128Kb on chip ram, the docs refer to it as the \n\n internal memory. */\n\n memory_region_init_ram(phys_intmem, NULL, \"axisdev88.chipram\", INTMEM_SIZE,\n\n &error_abort);\n\n vmstate_register_ram_global(phys_intmem);\n\n memory_region_add_subregion(address_space_mem, 0x38000000, phys_intmem);\n\n\n\n /* Attach a NAND flash to CS1. */\n\n nand = drive_get(IF_MTD, 0, 0);\n\n nand_state.nand = nand_init(nand ? blk_by_legacy_dinfo(nand) : NULL,\n\n NAND_MFR_STMICRO, 0x39);\n\n memory_region_init_io(&nand_state.iomem, NULL, &nand_ops, &nand_state,\n\n \"nand\", 0x05000000);\n\n memory_region_add_subregion(address_space_mem, 0x10000000,\n\n &nand_state.iomem);\n\n\n\n gpio_state.nand = &nand_state;\n\n memory_region_init_io(&gpio_state.iomem, NULL, &gpio_ops, &gpio_state,\n\n \"gpio\", 0x5c);\n\n memory_region_add_subregion(address_space_mem, 0x3001a000,\n\n &gpio_state.iomem);\n\n\n\n\n\n dev = qdev_create(NULL, \"etraxfs,pic\");\n\n /* FIXME: Is there a proper way to signal vectors to the CPU core? */\n\n qdev_prop_set_ptr(dev, \"interrupt_vector\", &env->interrupt_vector);\n\n qdev_init_nofail(dev);\n\n s = SYS_BUS_DEVICE(dev);\n\n sysbus_mmio_map(s, 0, 0x3001c000);\n\n sysbus_connect_irq(s, 0, qdev_get_gpio_in(DEVICE(cpu), CRIS_CPU_IRQ));\n\n sysbus_connect_irq(s, 1, qdev_get_gpio_in(DEVICE(cpu), CRIS_CPU_NMI));\n\n for (i = 0; i < 30; i++) {\n\n irq[i] = qdev_get_gpio_in(dev, i);\n\n }\n\n nmi[0] = qdev_get_gpio_in(dev, 30);\n\n nmi[1] = qdev_get_gpio_in(dev, 31);\n\n\n\n etraxfs_dmac = etraxfs_dmac_init(0x30000000, 10);\n\n for (i = 0; i < 10; i++) {\n\n /* On ETRAX, odd numbered channels are inputs. */\n\n etraxfs_dmac_connect(etraxfs_dmac, i, irq + 7 + i, i & 1);\n\n }\n\n\n\n /* Add the two ethernet blocks. */\n\n dma_eth = g_malloc0(sizeof dma_eth[0] * 4); /* Allocate 4 channels. */\n\n etraxfs_eth_init(&nd_table[0], 0x30034000, 1, &dma_eth[0], &dma_eth[1]);\n\n if (nb_nics > 1) {\n\n etraxfs_eth_init(&nd_table[1], 0x30036000, 2, &dma_eth[2], &dma_eth[3]);\n\n }\n\n\n\n /* The DMA Connector block is missing, hardwire things for now. */\n\n etraxfs_dmac_connect_client(etraxfs_dmac, 0, &dma_eth[0]);\n\n etraxfs_dmac_connect_client(etraxfs_dmac, 1, &dma_eth[1]);\n\n if (nb_nics > 1) {\n\n etraxfs_dmac_connect_client(etraxfs_dmac, 6, &dma_eth[2]);\n\n etraxfs_dmac_connect_client(etraxfs_dmac, 7, &dma_eth[3]);\n\n }\n\n\n\n /* 2 timers. */\n\n sysbus_create_varargs(\"etraxfs,timer\", 0x3001e000, irq[0x1b], nmi[1], NULL);\n\n sysbus_create_varargs(\"etraxfs,timer\", 0x3005e000, irq[0x1b], nmi[1], NULL);\n\n\n\n for (i = 0; i < 4; i++) {\n\n sysbus_create_simple(\"etraxfs,serial\", 0x30026000 + i * 0x2000,\n\n irq[0x14 + i]);\n\n }\n\n\n\n if (kernel_filename) {\n\n li.image_filename = kernel_filename;\n\n li.cmdline = kernel_cmdline;\n\n cris_load_image(cpu, &li);\n\n } else if (!qtest_enabled()) {\n\n fprintf(stderr, \"Kernel image must be specified\\n\");\n\n exit(1);\n\n }\n\n}\n", + "output": "1", + "index": 15146 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "qcrypto_block_luks_create(QCryptoBlock *block,\n\n QCryptoBlockCreateOptions *options,\n\n const char *optprefix,\n\n QCryptoBlockInitFunc initfunc,\n\n QCryptoBlockWriteFunc writefunc,\n\n void *opaque,\n\n Error **errp)\n\n{\n\n QCryptoBlockLUKS *luks;\n\n QCryptoBlockCreateOptionsLUKS luks_opts;\n\n Error *local_err = NULL;\n\n uint8_t *masterkey = NULL;\n\n uint8_t *slotkey = NULL;\n\n uint8_t *splitkey = NULL;\n\n size_t splitkeylen = 0;\n\n size_t i;\n\n QCryptoCipher *cipher = NULL;\n\n QCryptoIVGen *ivgen = NULL;\n\n char *password;\n\n const char *cipher_alg;\n\n const char *cipher_mode;\n\n const char *ivgen_alg;\n\n const char *ivgen_hash_alg = NULL;\n\n const char *hash_alg;\n\n char *cipher_mode_spec = NULL;\n\n QCryptoCipherAlgorithm ivcipheralg = 0;\n\n uint64_t iters;\n\n\n\n memcpy(&luks_opts, &options->u.luks, sizeof(luks_opts));\n\n if (!luks_opts.has_iter_time) {\n\n luks_opts.iter_time = 2000;\n\n }\n\n if (!luks_opts.has_cipher_alg) {\n\n luks_opts.cipher_alg = QCRYPTO_CIPHER_ALG_AES_256;\n\n }\n\n if (!luks_opts.has_cipher_mode) {\n\n luks_opts.cipher_mode = QCRYPTO_CIPHER_MODE_XTS;\n\n }\n\n if (!luks_opts.has_ivgen_alg) {\n\n luks_opts.ivgen_alg = QCRYPTO_IVGEN_ALG_PLAIN64;\n\n }\n\n if (!luks_opts.has_hash_alg) {\n\n luks_opts.hash_alg = QCRYPTO_HASH_ALG_SHA256;\n\n }\n\n if (luks_opts.ivgen_alg == QCRYPTO_IVGEN_ALG_ESSIV) {\n\n if (!luks_opts.has_ivgen_hash_alg) {\n\n luks_opts.ivgen_hash_alg = QCRYPTO_HASH_ALG_SHA256;\n\n luks_opts.has_ivgen_hash_alg = true;\n\n }\n\n }\n\n /* Note we're allowing ivgen_hash_alg to be set even for\n\n * non-essiv iv generators that don't need a hash. It will\n\n * be silently ignored, for compatibility with dm-crypt */\n\n\n\n if (!options->u.luks.key_secret) {\n\n error_setg(errp, \"Parameter '%skey-secret' is required for cipher\",\n\n optprefix ? optprefix : \"\");\n\n return -1;\n\n }\n\n password = qcrypto_secret_lookup_as_utf8(luks_opts.key_secret, errp);\n\n if (!password) {\n\n return -1;\n\n }\n\n\n\n luks = g_new0(QCryptoBlockLUKS, 1);\n\n block->opaque = luks;\n\n\n\n memcpy(luks->header.magic, qcrypto_block_luks_magic,\n\n QCRYPTO_BLOCK_LUKS_MAGIC_LEN);\n\n\n\n /* We populate the header in native endianness initially and\n\n * then convert everything to big endian just before writing\n\n * it out to disk\n\n */\n\n luks->header.version = QCRYPTO_BLOCK_LUKS_VERSION;\n\n qcrypto_block_luks_uuid_gen(luks->header.uuid);\n\n\n\n cipher_alg = qcrypto_block_luks_cipher_alg_lookup(luks_opts.cipher_alg,\n\n errp);\n\n if (!cipher_alg) {\n\n goto error;\n\n }\n\n\n\n cipher_mode = QCryptoCipherMode_str(luks_opts.cipher_mode);\n\n ivgen_alg = QCryptoIVGenAlgorithm_str(luks_opts.ivgen_alg);\n\n if (luks_opts.has_ivgen_hash_alg) {\n\n ivgen_hash_alg = QCryptoHashAlgorithm_str(luks_opts.ivgen_hash_alg);\n\n cipher_mode_spec = g_strdup_printf(\"%s-%s:%s\", cipher_mode, ivgen_alg,\n\n ivgen_hash_alg);\n\n } else {\n\n cipher_mode_spec = g_strdup_printf(\"%s-%s\", cipher_mode, ivgen_alg);\n\n }\n\n hash_alg = QCryptoHashAlgorithm_str(luks_opts.hash_alg);\n\n\n\n\n\n if (strlen(cipher_alg) >= QCRYPTO_BLOCK_LUKS_CIPHER_NAME_LEN) {\n\n error_setg(errp, \"Cipher name '%s' is too long for LUKS header\",\n\n cipher_alg);\n\n goto error;\n\n }\n\n if (strlen(cipher_mode_spec) >= QCRYPTO_BLOCK_LUKS_CIPHER_MODE_LEN) {\n\n error_setg(errp, \"Cipher mode '%s' is too long for LUKS header\",\n\n cipher_mode_spec);\n\n goto error;\n\n }\n\n if (strlen(hash_alg) >= QCRYPTO_BLOCK_LUKS_HASH_SPEC_LEN) {\n\n error_setg(errp, \"Hash name '%s' is too long for LUKS header\",\n\n hash_alg);\n\n goto error;\n\n }\n\n\n\n if (luks_opts.ivgen_alg == QCRYPTO_IVGEN_ALG_ESSIV) {\n\n ivcipheralg = qcrypto_block_luks_essiv_cipher(luks_opts.cipher_alg,\n\n luks_opts.ivgen_hash_alg,\n\n &local_err);\n\n if (local_err) {\n\n error_propagate(errp, local_err);\n\n goto error;\n\n }\n\n } else {\n\n ivcipheralg = luks_opts.cipher_alg;\n\n }\n\n\n\n strcpy(luks->header.cipher_name, cipher_alg);\n\n strcpy(luks->header.cipher_mode, cipher_mode_spec);\n\n strcpy(luks->header.hash_spec, hash_alg);\n\n\n\n luks->header.key_bytes = qcrypto_cipher_get_key_len(luks_opts.cipher_alg);\n\n if (luks_opts.cipher_mode == QCRYPTO_CIPHER_MODE_XTS) {\n\n luks->header.key_bytes *= 2;\n\n }\n\n\n\n /* Generate the salt used for hashing the master key\n\n * with PBKDF later\n\n */\n\n if (qcrypto_random_bytes(luks->header.master_key_salt,\n\n QCRYPTO_BLOCK_LUKS_SALT_LEN,\n\n errp) < 0) {\n\n goto error;\n\n }\n\n\n\n /* Generate random master key */\n\n masterkey = g_new0(uint8_t, luks->header.key_bytes);\n\n if (qcrypto_random_bytes(masterkey,\n\n luks->header.key_bytes, errp) < 0) {\n\n goto error;\n\n }\n\n\n\n\n\n /* Setup the block device payload encryption objects */\n\n block->cipher = qcrypto_cipher_new(luks_opts.cipher_alg,\n\n luks_opts.cipher_mode,\n\n masterkey, luks->header.key_bytes,\n\n errp);\n\n if (!block->cipher) {\n\n goto error;\n\n }\n\n\n\n block->kdfhash = luks_opts.hash_alg;\n\n block->niv = qcrypto_cipher_get_iv_len(luks_opts.cipher_alg,\n\n luks_opts.cipher_mode);\n\n block->ivgen = qcrypto_ivgen_new(luks_opts.ivgen_alg,\n\n ivcipheralg,\n\n luks_opts.ivgen_hash_alg,\n\n masterkey, luks->header.key_bytes,\n\n errp);\n\n\n\n if (!block->ivgen) {\n\n goto error;\n\n }\n\n\n\n\n\n /* Determine how many iterations we need to hash the master\n\n * key, in order to have 1 second of compute time used\n\n */\n\n iters = qcrypto_pbkdf2_count_iters(luks_opts.hash_alg,\n\n masterkey, luks->header.key_bytes,\n\n luks->header.master_key_salt,\n\n QCRYPTO_BLOCK_LUKS_SALT_LEN,\n\n QCRYPTO_BLOCK_LUKS_DIGEST_LEN,\n\n &local_err);\n\n if (local_err) {\n\n error_propagate(errp, local_err);\n\n goto error;\n\n }\n\n\n\n if (iters > (ULLONG_MAX / luks_opts.iter_time)) {\n\n error_setg_errno(errp, ERANGE,\n\n \"PBKDF iterations %llu too large to scale\",\n\n (unsigned long long)iters);\n\n goto error;\n\n }\n\n\n\n /* iter_time was in millis, but count_iters reported for secs */\n\n iters = iters * luks_opts.iter_time / 1000;\n\n\n\n /* Why /= 8 ? That matches cryptsetup, but there's no\n\n * explanation why they chose /= 8... Probably so that\n\n * if all 8 keyslots are active we only spend 1 second\n\n * in total time to check all keys */\n\n iters /= 8;\n\n if (iters > UINT32_MAX) {\n\n error_setg_errno(errp, ERANGE,\n\n \"PBKDF iterations %llu larger than %u\",\n\n (unsigned long long)iters, UINT32_MAX);\n\n goto error;\n\n }\n\n iters = MAX(iters, QCRYPTO_BLOCK_LUKS_MIN_MASTER_KEY_ITERS);\n\n luks->header.master_key_iterations = iters;\n\n\n\n /* Hash the master key, saving the result in the LUKS\n\n * header. This hash is used when opening the encrypted\n\n * device to verify that the user password unlocked a\n\n * valid master key\n\n */\n\n if (qcrypto_pbkdf2(luks_opts.hash_alg,\n\n masterkey, luks->header.key_bytes,\n\n luks->header.master_key_salt,\n\n QCRYPTO_BLOCK_LUKS_SALT_LEN,\n\n luks->header.master_key_iterations,\n\n luks->header.master_key_digest,\n\n QCRYPTO_BLOCK_LUKS_DIGEST_LEN,\n\n errp) < 0) {\n\n goto error;\n\n }\n\n\n\n\n\n /* Although LUKS has multiple key slots, we're just going\n\n * to use the first key slot */\n\n splitkeylen = luks->header.key_bytes * QCRYPTO_BLOCK_LUKS_STRIPES;\n\n for (i = 0; i < QCRYPTO_BLOCK_LUKS_NUM_KEY_SLOTS; i++) {\n\n luks->header.key_slots[i].active = i == 0 ?\n\n QCRYPTO_BLOCK_LUKS_KEY_SLOT_ENABLED :\n\n QCRYPTO_BLOCK_LUKS_KEY_SLOT_DISABLED;\n\n luks->header.key_slots[i].stripes = QCRYPTO_BLOCK_LUKS_STRIPES;\n\n\n\n /* This calculation doesn't match that shown in the spec,\n\n * but instead follows the cryptsetup implementation.\n\n */\n\n luks->header.key_slots[i].key_offset =\n\n (QCRYPTO_BLOCK_LUKS_KEY_SLOT_OFFSET /\n\n QCRYPTO_BLOCK_LUKS_SECTOR_SIZE) +\n\n (ROUND_UP(DIV_ROUND_UP(splitkeylen, QCRYPTO_BLOCK_LUKS_SECTOR_SIZE),\n\n (QCRYPTO_BLOCK_LUKS_KEY_SLOT_OFFSET /\n\n QCRYPTO_BLOCK_LUKS_SECTOR_SIZE)) * i);\n\n }\n\n\n\n if (qcrypto_random_bytes(luks->header.key_slots[0].salt,\n\n QCRYPTO_BLOCK_LUKS_SALT_LEN,\n\n errp) < 0) {\n\n goto error;\n\n }\n\n\n\n /* Again we determine how many iterations are required to\n\n * hash the user password while consuming 1 second of compute\n\n * time */\n\n iters = qcrypto_pbkdf2_count_iters(luks_opts.hash_alg,\n\n (uint8_t *)password, strlen(password),\n\n luks->header.key_slots[0].salt,\n\n QCRYPTO_BLOCK_LUKS_SALT_LEN,\n\n luks->header.key_bytes,\n\n &local_err);\n\n if (local_err) {\n\n error_propagate(errp, local_err);\n\n goto error;\n\n }\n\n\n\n if (iters > (ULLONG_MAX / luks_opts.iter_time)) {\n\n error_setg_errno(errp, ERANGE,\n\n \"PBKDF iterations %llu too large to scale\",\n\n (unsigned long long)iters);\n\n goto error;\n\n }\n\n\n\n /* iter_time was in millis, but count_iters reported for secs */\n\n iters = iters * luks_opts.iter_time / 1000;\n\n\n\n if (iters > UINT32_MAX) {\n\n error_setg_errno(errp, ERANGE,\n\n \"PBKDF iterations %llu larger than %u\",\n\n (unsigned long long)iters, UINT32_MAX);\n\n goto error;\n\n }\n\n\n\n luks->header.key_slots[0].iterations =\n\n MAX(iters, QCRYPTO_BLOCK_LUKS_MIN_SLOT_KEY_ITERS);\n\n\n\n\n\n /* Generate a key that we'll use to encrypt the master\n\n * key, from the user's password\n\n */\n\n slotkey = g_new0(uint8_t, luks->header.key_bytes);\n\n if (qcrypto_pbkdf2(luks_opts.hash_alg,\n\n (uint8_t *)password, strlen(password),\n\n luks->header.key_slots[0].salt,\n\n QCRYPTO_BLOCK_LUKS_SALT_LEN,\n\n luks->header.key_slots[0].iterations,\n\n slotkey, luks->header.key_bytes,\n\n errp) < 0) {\n\n goto error;\n\n }\n\n\n\n\n\n /* Setup the encryption objects needed to encrypt the\n\n * master key material\n\n */\n\n cipher = qcrypto_cipher_new(luks_opts.cipher_alg,\n\n luks_opts.cipher_mode,\n\n slotkey, luks->header.key_bytes,\n\n errp);\n\n if (!cipher) {\n\n goto error;\n\n }\n\n\n\n ivgen = qcrypto_ivgen_new(luks_opts.ivgen_alg,\n\n ivcipheralg,\n\n luks_opts.ivgen_hash_alg,\n\n slotkey, luks->header.key_bytes,\n\n errp);\n\n if (!ivgen) {\n\n goto error;\n\n }\n\n\n\n /* Before storing the master key, we need to vastly\n\n * increase its size, as protection against forensic\n\n * disk data recovery */\n\n splitkey = g_new0(uint8_t, splitkeylen);\n\n\n\n if (qcrypto_afsplit_encode(luks_opts.hash_alg,\n\n luks->header.key_bytes,\n\n luks->header.key_slots[0].stripes,\n\n masterkey,\n\n splitkey,\n\n errp) < 0) {\n\n goto error;\n\n }\n\n\n\n /* Now we encrypt the split master key with the key generated\n\n * from the user's password, before storing it */\n\n if (qcrypto_block_encrypt_helper(cipher, block->niv, ivgen,\n\n QCRYPTO_BLOCK_LUKS_SECTOR_SIZE,\n\n 0,\n\n splitkey,\n\n splitkeylen,\n\n errp) < 0) {\n\n goto error;\n\n }\n\n\n\n\n\n /* The total size of the LUKS headers is the partition header + key\n\n * slot headers, rounded up to the nearest sector, combined with\n\n * the size of each master key material region, also rounded up\n\n * to the nearest sector */\n\n luks->header.payload_offset =\n\n (QCRYPTO_BLOCK_LUKS_KEY_SLOT_OFFSET /\n\n QCRYPTO_BLOCK_LUKS_SECTOR_SIZE) +\n\n (ROUND_UP(DIV_ROUND_UP(splitkeylen, QCRYPTO_BLOCK_LUKS_SECTOR_SIZE),\n\n (QCRYPTO_BLOCK_LUKS_KEY_SLOT_OFFSET /\n\n QCRYPTO_BLOCK_LUKS_SECTOR_SIZE)) *\n\n QCRYPTO_BLOCK_LUKS_NUM_KEY_SLOTS);\n\n\n\n block->payload_offset = luks->header.payload_offset *\n\n QCRYPTO_BLOCK_LUKS_SECTOR_SIZE;\n\n\n\n /* Reserve header space to match payload offset */\n\n initfunc(block, block->payload_offset, opaque, &local_err);\n\n if (local_err) {\n\n error_propagate(errp, local_err);\n\n goto error;\n\n }\n\n\n\n /* Everything on disk uses Big Endian, so flip header fields\n\n * before writing them */\n\n cpu_to_be16s(&luks->header.version);\n\n cpu_to_be32s(&luks->header.payload_offset);\n\n cpu_to_be32s(&luks->header.key_bytes);\n\n cpu_to_be32s(&luks->header.master_key_iterations);\n\n\n\n for (i = 0; i < QCRYPTO_BLOCK_LUKS_NUM_KEY_SLOTS; i++) {\n\n cpu_to_be32s(&luks->header.key_slots[i].active);\n\n cpu_to_be32s(&luks->header.key_slots[i].iterations);\n\n cpu_to_be32s(&luks->header.key_slots[i].key_offset);\n\n cpu_to_be32s(&luks->header.key_slots[i].stripes);\n\n }\n\n\n\n\n\n /* Write out the partition header and key slot headers */\n\n writefunc(block, 0,\n\n (const uint8_t *)&luks->header,\n\n sizeof(luks->header),\n\n opaque,\n\n &local_err);\n\n\n\n /* Delay checking local_err until we've byte-swapped */\n\n\n\n /* Byte swap the header back to native, in case we need\n\n * to read it again later */\n\n be16_to_cpus(&luks->header.version);\n\n be32_to_cpus(&luks->header.payload_offset);\n\n be32_to_cpus(&luks->header.key_bytes);\n\n be32_to_cpus(&luks->header.master_key_iterations);\n\n\n\n for (i = 0; i < QCRYPTO_BLOCK_LUKS_NUM_KEY_SLOTS; i++) {\n\n be32_to_cpus(&luks->header.key_slots[i].active);\n\n be32_to_cpus(&luks->header.key_slots[i].iterations);\n\n be32_to_cpus(&luks->header.key_slots[i].key_offset);\n\n be32_to_cpus(&luks->header.key_slots[i].stripes);\n\n }\n\n\n\n if (local_err) {\n\n error_propagate(errp, local_err);\n\n goto error;\n\n }\n\n\n\n /* Write out the master key material, starting at the\n\n * sector immediately following the partition header. */\n\n if (writefunc(block,\n\n luks->header.key_slots[0].key_offset *\n\n QCRYPTO_BLOCK_LUKS_SECTOR_SIZE,\n\n splitkey, splitkeylen,\n\n opaque,\n\n errp) != splitkeylen) {\n\n goto error;\n\n }\n\n\n\n luks->cipher_alg = luks_opts.cipher_alg;\n\n luks->cipher_mode = luks_opts.cipher_mode;\n\n luks->ivgen_alg = luks_opts.ivgen_alg;\n\n luks->ivgen_hash_alg = luks_opts.ivgen_hash_alg;\n\n luks->hash_alg = luks_opts.hash_alg;\n\n\n\n memset(masterkey, 0, luks->header.key_bytes);\n\n g_free(masterkey);\n\n memset(slotkey, 0, luks->header.key_bytes);\n\n g_free(slotkey);\n\n g_free(splitkey);\n\n g_free(password);\n\n g_free(cipher_mode_spec);\n\n\n\n qcrypto_ivgen_free(ivgen);\n\n qcrypto_cipher_free(cipher);\n\n\n\n return 0;\n\n\n\n error:\n\n if (masterkey) {\n\n memset(masterkey, 0, luks->header.key_bytes);\n\n }\n\n g_free(masterkey);\n\n if (slotkey) {\n\n memset(slotkey, 0, luks->header.key_bytes);\n\n }\n\n g_free(slotkey);\n\n g_free(splitkey);\n\n g_free(password);\n\n g_free(cipher_mode_spec);\n\n\n\n qcrypto_ivgen_free(ivgen);\n\n qcrypto_cipher_free(cipher);\n\n\n\n g_free(luks);\n\n return -1;\n\n}\n", + "output": "0", + "index": 26193 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void gen_mfc0 (CPUState *env, DisasContext *ctx, int reg, int sel)\n\n{\n\n const char *rn = \"invalid\";\n\n\n\n if (sel != 0)\n\n check_insn(env, ctx, ISA_MIPS32);\n\n\n\n switch (reg) {\n\n case 0:\n\n switch (sel) {\n\n case 0:\n\n gen_op_mfc0_index();\n\n rn = \"Index\";\n\n break;\n\n case 1:\n\n check_mips_mt(env, ctx);\n\n gen_op_mfc0_mvpcontrol();\n\n rn = \"MVPControl\";\n\n break;\n\n case 2:\n\n check_mips_mt(env, ctx);\n\n gen_op_mfc0_mvpconf0();\n\n rn = \"MVPConf0\";\n\n break;\n\n case 3:\n\n check_mips_mt(env, ctx);\n\n gen_op_mfc0_mvpconf1();\n\n rn = \"MVPConf1\";\n\n break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 1:\n\n switch (sel) {\n\n case 0:\n\n gen_op_mfc0_random();\n\n rn = \"Random\";\n\n break;\n\n case 1:\n\n check_mips_mt(env, ctx);\n\n gen_op_mfc0_vpecontrol();\n\n rn = \"VPEControl\";\n\n break;\n\n case 2:\n\n check_mips_mt(env, ctx);\n\n gen_op_mfc0_vpeconf0();\n\n rn = \"VPEConf0\";\n\n break;\n\n case 3:\n\n check_mips_mt(env, ctx);\n\n gen_op_mfc0_vpeconf1();\n\n rn = \"VPEConf1\";\n\n break;\n\n case 4:\n\n check_mips_mt(env, ctx);\n\n gen_op_mfc0_yqmask();\n\n rn = \"YQMask\";\n\n break;\n\n case 5:\n\n check_mips_mt(env, ctx);\n\n gen_op_mfc0_vpeschedule();\n\n rn = \"VPESchedule\";\n\n break;\n\n case 6:\n\n check_mips_mt(env, ctx);\n\n gen_op_mfc0_vpeschefback();\n\n rn = \"VPEScheFBack\";\n\n break;\n\n case 7:\n\n check_mips_mt(env, ctx);\n\n gen_op_mfc0_vpeopt();\n\n rn = \"VPEOpt\";\n\n break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 2:\n\n switch (sel) {\n\n case 0:\n\n gen_op_mfc0_entrylo0();\n\n rn = \"EntryLo0\";\n\n break;\n\n case 1:\n\n check_mips_mt(env, ctx);\n\n gen_op_mfc0_tcstatus();\n\n rn = \"TCStatus\";\n\n break;\n\n case 2:\n\n check_mips_mt(env, ctx);\n\n gen_op_mfc0_tcbind();\n\n rn = \"TCBind\";\n\n break;\n\n case 3:\n\n check_mips_mt(env, ctx);\n\n gen_op_mfc0_tcrestart();\n\n rn = \"TCRestart\";\n\n break;\n\n case 4:\n\n check_mips_mt(env, ctx);\n\n gen_op_mfc0_tchalt();\n\n rn = \"TCHalt\";\n\n break;\n\n case 5:\n\n check_mips_mt(env, ctx);\n\n gen_op_mfc0_tccontext();\n\n rn = \"TCContext\";\n\n break;\n\n case 6:\n\n check_mips_mt(env, ctx);\n\n gen_op_mfc0_tcschedule();\n\n rn = \"TCSchedule\";\n\n break;\n\n case 7:\n\n check_mips_mt(env, ctx);\n\n gen_op_mfc0_tcschefback();\n\n rn = \"TCScheFBack\";\n\n break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 3:\n\n switch (sel) {\n\n case 0:\n\n gen_op_mfc0_entrylo1();\n\n rn = \"EntryLo1\";\n\n break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 4:\n\n switch (sel) {\n\n case 0:\n\n gen_op_mfc0_context();\n\n rn = \"Context\";\n\n break;\n\n case 1:\n\n// gen_op_mfc0_contextconfig(); /* SmartMIPS ASE */\n\n rn = \"ContextConfig\";\n\n// break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 5:\n\n switch (sel) {\n\n case 0:\n\n gen_op_mfc0_pagemask();\n\n rn = \"PageMask\";\n\n break;\n\n case 1:\n\n check_insn(env, ctx, ISA_MIPS32R2);\n\n gen_op_mfc0_pagegrain();\n\n rn = \"PageGrain\";\n\n break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 6:\n\n switch (sel) {\n\n case 0:\n\n gen_op_mfc0_wired();\n\n rn = \"Wired\";\n\n break;\n\n case 1:\n\n check_insn(env, ctx, ISA_MIPS32R2);\n\n gen_op_mfc0_srsconf0();\n\n rn = \"SRSConf0\";\n\n break;\n\n case 2:\n\n check_insn(env, ctx, ISA_MIPS32R2);\n\n gen_op_mfc0_srsconf1();\n\n rn = \"SRSConf1\";\n\n break;\n\n case 3:\n\n check_insn(env, ctx, ISA_MIPS32R2);\n\n gen_op_mfc0_srsconf2();\n\n rn = \"SRSConf2\";\n\n break;\n\n case 4:\n\n check_insn(env, ctx, ISA_MIPS32R2);\n\n gen_op_mfc0_srsconf3();\n\n rn = \"SRSConf3\";\n\n break;\n\n case 5:\n\n check_insn(env, ctx, ISA_MIPS32R2);\n\n gen_op_mfc0_srsconf4();\n\n rn = \"SRSConf4\";\n\n break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 7:\n\n switch (sel) {\n\n case 0:\n\n check_insn(env, ctx, ISA_MIPS32R2);\n\n gen_op_mfc0_hwrena();\n\n rn = \"HWREna\";\n\n break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 8:\n\n switch (sel) {\n\n case 0:\n\n gen_op_mfc0_badvaddr();\n\n rn = \"BadVaddr\";\n\n break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 9:\n\n switch (sel) {\n\n case 0:\n\n gen_op_mfc0_count();\n\n rn = \"Count\";\n\n break;\n\n /* 6,7 are implementation dependent */\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 10:\n\n switch (sel) {\n\n case 0:\n\n gen_op_mfc0_entryhi();\n\n rn = \"EntryHi\";\n\n break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 11:\n\n switch (sel) {\n\n case 0:\n\n gen_op_mfc0_compare();\n\n rn = \"Compare\";\n\n break;\n\n /* 6,7 are implementation dependent */\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 12:\n\n switch (sel) {\n\n case 0:\n\n gen_op_mfc0_status();\n\n rn = \"Status\";\n\n break;\n\n case 1:\n\n check_insn(env, ctx, ISA_MIPS32R2);\n\n gen_op_mfc0_intctl();\n\n rn = \"IntCtl\";\n\n break;\n\n case 2:\n\n check_insn(env, ctx, ISA_MIPS32R2);\n\n gen_op_mfc0_srsctl();\n\n rn = \"SRSCtl\";\n\n break;\n\n case 3:\n\n check_insn(env, ctx, ISA_MIPS32R2);\n\n gen_op_mfc0_srsmap();\n\n rn = \"SRSMap\";\n\n break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 13:\n\n switch (sel) {\n\n case 0:\n\n gen_op_mfc0_cause();\n\n rn = \"Cause\";\n\n break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 14:\n\n switch (sel) {\n\n case 0:\n\n gen_op_mfc0_epc();\n\n rn = \"EPC\";\n\n break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 15:\n\n switch (sel) {\n\n case 0:\n\n gen_op_mfc0_prid();\n\n rn = \"PRid\";\n\n break;\n\n case 1:\n\n check_insn(env, ctx, ISA_MIPS32R2);\n\n gen_op_mfc0_ebase();\n\n rn = \"EBase\";\n\n break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 16:\n\n switch (sel) {\n\n case 0:\n\n gen_op_mfc0_config0();\n\n rn = \"Config\";\n\n break;\n\n case 1:\n\n gen_op_mfc0_config1();\n\n rn = \"Config1\";\n\n break;\n\n case 2:\n\n gen_op_mfc0_config2();\n\n rn = \"Config2\";\n\n break;\n\n case 3:\n\n gen_op_mfc0_config3();\n\n rn = \"Config3\";\n\n break;\n\n /* 4,5 are reserved */\n\n /* 6,7 are implementation dependent */\n\n case 6:\n\n gen_op_mfc0_config6();\n\n rn = \"Config6\";\n\n break;\n\n case 7:\n\n gen_op_mfc0_config7();\n\n rn = \"Config7\";\n\n break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 17:\n\n switch (sel) {\n\n case 0:\n\n gen_op_mfc0_lladdr();\n\n rn = \"LLAddr\";\n\n break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 18:\n\n switch (sel) {\n\n case 0 ... 7:\n\n gen_op_mfc0_watchlo(sel);\n\n rn = \"WatchLo\";\n\n break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 19:\n\n switch (sel) {\n\n case 0 ...7:\n\n gen_op_mfc0_watchhi(sel);\n\n rn = \"WatchHi\";\n\n break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 20:\n\n switch (sel) {\n\n case 0:\n\n#if defined(TARGET_MIPSN32) || defined(TARGET_MIPS64)\n\n check_insn(env, ctx, ISA_MIPS3);\n\n gen_op_mfc0_xcontext();\n\n rn = \"XContext\";\n\n break;\n\n#endif\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 21:\n\n /* Officially reserved, but sel 0 is used for R1x000 framemask */\n\n switch (sel) {\n\n case 0:\n\n gen_op_mfc0_framemask();\n\n rn = \"Framemask\";\n\n break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 22:\n\n /* ignored */\n\n rn = \"'Diagnostic\"; /* implementation dependent */\n\n break;\n\n case 23:\n\n switch (sel) {\n\n case 0:\n\n gen_op_mfc0_debug(); /* EJTAG support */\n\n rn = \"Debug\";\n\n break;\n\n case 1:\n\n// gen_op_mfc0_tracecontrol(); /* PDtrace support */\n\n rn = \"TraceControl\";\n\n// break;\n\n case 2:\n\n// gen_op_mfc0_tracecontrol2(); /* PDtrace support */\n\n rn = \"TraceControl2\";\n\n// break;\n\n case 3:\n\n// gen_op_mfc0_usertracedata(); /* PDtrace support */\n\n rn = \"UserTraceData\";\n\n// break;\n\n case 4:\n\n// gen_op_mfc0_debug(); /* PDtrace support */\n\n rn = \"TraceBPC\";\n\n// break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 24:\n\n switch (sel) {\n\n case 0:\n\n gen_op_mfc0_depc(); /* EJTAG support */\n\n rn = \"DEPC\";\n\n break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 25:\n\n switch (sel) {\n\n case 0:\n\n gen_op_mfc0_performance0();\n\n rn = \"Performance0\";\n\n break;\n\n case 1:\n\n// gen_op_mfc0_performance1();\n\n rn = \"Performance1\";\n\n// break;\n\n case 2:\n\n// gen_op_mfc0_performance2();\n\n rn = \"Performance2\";\n\n// break;\n\n case 3:\n\n// gen_op_mfc0_performance3();\n\n rn = \"Performance3\";\n\n// break;\n\n case 4:\n\n// gen_op_mfc0_performance4();\n\n rn = \"Performance4\";\n\n// break;\n\n case 5:\n\n// gen_op_mfc0_performance5();\n\n rn = \"Performance5\";\n\n// break;\n\n case 6:\n\n// gen_op_mfc0_performance6();\n\n rn = \"Performance6\";\n\n// break;\n\n case 7:\n\n// gen_op_mfc0_performance7();\n\n rn = \"Performance7\";\n\n// break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 26:\n\n rn = \"ECC\";\n\n break;\n\n case 27:\n\n switch (sel) {\n\n /* ignored */\n\n case 0 ... 3:\n\n rn = \"CacheErr\";\n\n break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 28:\n\n switch (sel) {\n\n case 0:\n\n case 2:\n\n case 4:\n\n case 6:\n\n gen_op_mfc0_taglo();\n\n rn = \"TagLo\";\n\n break;\n\n case 1:\n\n case 3:\n\n case 5:\n\n case 7:\n\n gen_op_mfc0_datalo();\n\n rn = \"DataLo\";\n\n break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 29:\n\n switch (sel) {\n\n case 0:\n\n case 2:\n\n case 4:\n\n case 6:\n\n gen_op_mfc0_taghi();\n\n rn = \"TagHi\";\n\n break;\n\n case 1:\n\n case 3:\n\n case 5:\n\n case 7:\n\n gen_op_mfc0_datahi();\n\n rn = \"DataHi\";\n\n break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 30:\n\n switch (sel) {\n\n case 0:\n\n gen_op_mfc0_errorepc();\n\n rn = \"ErrorEPC\";\n\n break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n case 31:\n\n switch (sel) {\n\n case 0:\n\n gen_op_mfc0_desave(); /* EJTAG support */\n\n rn = \"DESAVE\";\n\n break;\n\n default:\n\n goto die;\n\n }\n\n break;\n\n default:\n\n goto die;\n\n }\n\n#if defined MIPS_DEBUG_DISAS\n\n if (loglevel & CPU_LOG_TB_IN_ASM) {\n\n fprintf(logfile, \"mfc0 %s (reg %d sel %d)\\n\",\n\n rn, reg, sel);\n\n }\n\n#endif\n\n return;\n\n\n\ndie:\n\n#if defined MIPS_DEBUG_DISAS\n\n if (loglevel & CPU_LOG_TB_IN_ASM) {\n\n fprintf(logfile, \"mfc0 %s (reg %d sel %d)\\n\",\n\n rn, reg, sel);\n\n }\n\n#endif\n\n generate_exception(ctx, EXCP_RI);\n\n}\n", + "output": "0", + "index": 1189 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void qcow_aio_read_cb(void *opaque, int ret)\n\n{\n\n QCowAIOCB *acb = opaque;\n\n BlockDriverState *bs = acb->common.bs;\n\n BDRVQcowState *s = bs->opaque;\n\n int index_in_cluster, n1;\n\n\n\n acb->hd_aiocb = NULL;\n\n if (ret < 0)\n\n goto done;\n\n\n\n /* post process the read buffer */\n\n if (!acb->cluster_offset) {\n\n /* nothing to do */\n\n } else if (acb->cluster_offset & QCOW_OFLAG_COMPRESSED) {\n\n /* nothing to do */\n\n } else {\n\n if (s->crypt_method) {\n\n qcow2_encrypt_sectors(s, acb->sector_num, acb->buf, acb->buf,\n\n acb->cur_nr_sectors, 0,\n\n &s->aes_decrypt_key);\n\n }\n\n }\n\n\n\n acb->remaining_sectors -= acb->cur_nr_sectors;\n\n acb->sector_num += acb->cur_nr_sectors;\n\n acb->buf += acb->cur_nr_sectors * 512;\n\n\n\n if (acb->remaining_sectors == 0) {\n\n /* request completed */\n\n ret = 0;\n\n goto done;\n\n }\n\n\n\n /* prepare next AIO request */\n\n acb->cur_nr_sectors = acb->remaining_sectors;\n\n acb->cluster_offset = qcow2_get_cluster_offset(bs, acb->sector_num << 9,\n\n &acb->cur_nr_sectors);\n\n index_in_cluster = acb->sector_num & (s->cluster_sectors - 1);\n\n\n\n if (!acb->cluster_offset) {\n\n if (bs->backing_hd) {\n\n /* read from the base image */\n\n n1 = qcow2_backing_read1(bs->backing_hd, acb->sector_num,\n\n acb->buf, acb->cur_nr_sectors);\n\n if (n1 > 0) {\n\n acb->hd_iov.iov_base = (void *)acb->buf;\n\n acb->hd_iov.iov_len = acb->cur_nr_sectors * 512;\n\n qemu_iovec_init_external(&acb->hd_qiov, &acb->hd_iov, 1);\n\n BLKDBG_EVENT(bs->file, BLKDBG_READ_BACKING_AIO);\n\n acb->hd_aiocb = bdrv_aio_readv(bs->backing_hd, acb->sector_num,\n\n &acb->hd_qiov, acb->cur_nr_sectors,\n\n\t\t\t\t qcow_aio_read_cb, acb);\n\n if (acb->hd_aiocb == NULL)\n\n goto done;\n\n } else {\n\n ret = qcow_schedule_bh(qcow_aio_read_bh, acb);\n\n if (ret < 0)\n\n goto done;\n\n }\n\n } else {\n\n /* Note: in this case, no need to wait */\n\n memset(acb->buf, 0, 512 * acb->cur_nr_sectors);\n\n ret = qcow_schedule_bh(qcow_aio_read_bh, acb);\n\n if (ret < 0)\n\n goto done;\n\n }\n\n } else if (acb->cluster_offset & QCOW_OFLAG_COMPRESSED) {\n\n /* add AIO support for compressed blocks ? */\n\n if (qcow2_decompress_cluster(bs, acb->cluster_offset) < 0)\n\n goto done;\n\n memcpy(acb->buf, s->cluster_cache + index_in_cluster * 512,\n\n 512 * acb->cur_nr_sectors);\n\n ret = qcow_schedule_bh(qcow_aio_read_bh, acb);\n\n if (ret < 0)\n\n goto done;\n\n } else {\n\n if ((acb->cluster_offset & 511) != 0) {\n\n ret = -EIO;\n\n goto done;\n\n }\n\n\n\n acb->hd_iov.iov_base = (void *)acb->buf;\n\n acb->hd_iov.iov_len = acb->cur_nr_sectors * 512;\n\n qemu_iovec_init_external(&acb->hd_qiov, &acb->hd_iov, 1);\n\n BLKDBG_EVENT(bs->file, BLKDBG_READ_AIO);\n\n acb->hd_aiocb = bdrv_aio_readv(bs->file,\n\n (acb->cluster_offset >> 9) + index_in_cluster,\n\n &acb->hd_qiov, acb->cur_nr_sectors,\n\n qcow_aio_read_cb, acb);\n\n if (acb->hd_aiocb == NULL) {\n\n ret = -EIO;\n\n goto done;\n\n }\n\n }\n\n\n\n return;\n\ndone:\n\n if (acb->qiov->niov > 1) {\n\n qemu_iovec_from_buffer(acb->qiov, acb->orig_buf, acb->qiov->size);\n\n qemu_vfree(acb->orig_buf);\n\n }\n\n acb->common.cb(acb->common.opaque, ret);\n\n qemu_aio_release(acb);\n\n}\n", + "output": "0", + "index": 26953 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int virtio_scsi_do_tmf(VirtIOSCSI *s, VirtIOSCSIReq *req)\n\n{\n\n SCSIDevice *d = virtio_scsi_device_find(s, req->req.tmf.lun);\n\n SCSIRequest *r, *next;\n\n BusChild *kid;\n\n int target;\n\n int ret = 0;\n\n\n\n if (s->dataplane_started) {\n\n assert(blk_get_aio_context(d->conf.blk) == s->ctx);\n\n }\n\n /* Here VIRTIO_SCSI_S_OK means \"FUNCTION COMPLETE\". */\n\n req->resp.tmf.response = VIRTIO_SCSI_S_OK;\n\n\n\n virtio_tswap32s(VIRTIO_DEVICE(s), &req->req.tmf.subtype);\n\n switch (req->req.tmf.subtype) {\n\n case VIRTIO_SCSI_T_TMF_ABORT_TASK:\n\n case VIRTIO_SCSI_T_TMF_QUERY_TASK:\n\n if (!d) {\n\n goto fail;\n\n }\n\n if (d->lun != virtio_scsi_get_lun(req->req.tmf.lun)) {\n\n goto incorrect_lun;\n\n }\n\n QTAILQ_FOREACH_SAFE(r, &d->requests, next, next) {\n\n VirtIOSCSIReq *cmd_req = r->hba_private;\n\n if (cmd_req && cmd_req->req.cmd.tag == req->req.tmf.tag) {\n\n break;\n\n }\n\n }\n\n if (r) {\n\n /*\n\n * Assert that the request has not been completed yet, we\n\n * check for it in the loop above.\n\n */\n\n assert(r->hba_private);\n\n if (req->req.tmf.subtype == VIRTIO_SCSI_T_TMF_QUERY_TASK) {\n\n /* \"If the specified command is present in the task set, then\n\n * return a service response set to FUNCTION SUCCEEDED\".\n\n */\n\n req->resp.tmf.response = VIRTIO_SCSI_S_FUNCTION_SUCCEEDED;\n\n } else {\n\n VirtIOSCSICancelNotifier *notifier;\n\n\n\n req->remaining = 1;\n\n notifier = g_new(VirtIOSCSICancelNotifier, 1);\n\n notifier->tmf_req = req;\n\n notifier->notifier.notify = virtio_scsi_cancel_notify;\n\n scsi_req_cancel_async(r, ¬ifier->notifier);\n\n ret = -EINPROGRESS;\n\n }\n\n }\n\n break;\n\n\n\n case VIRTIO_SCSI_T_TMF_LOGICAL_UNIT_RESET:\n\n if (!d) {\n\n goto fail;\n\n }\n\n if (d->lun != virtio_scsi_get_lun(req->req.tmf.lun)) {\n\n goto incorrect_lun;\n\n }\n\n s->resetting++;\n\n qdev_reset_all(&d->qdev);\n\n s->resetting--;\n\n break;\n\n\n\n case VIRTIO_SCSI_T_TMF_ABORT_TASK_SET:\n\n case VIRTIO_SCSI_T_TMF_CLEAR_TASK_SET:\n\n case VIRTIO_SCSI_T_TMF_QUERY_TASK_SET:\n\n if (!d) {\n\n goto fail;\n\n }\n\n if (d->lun != virtio_scsi_get_lun(req->req.tmf.lun)) {\n\n goto incorrect_lun;\n\n }\n\n\n\n /* Add 1 to \"remaining\" until virtio_scsi_do_tmf returns.\n\n * This way, if the bus starts calling back to the notifiers\n\n * even before we finish the loop, virtio_scsi_cancel_notify\n\n * will not complete the TMF too early.\n\n */\n\n req->remaining = 1;\n\n QTAILQ_FOREACH_SAFE(r, &d->requests, next, next) {\n\n if (r->hba_private) {\n\n if (req->req.tmf.subtype == VIRTIO_SCSI_T_TMF_QUERY_TASK_SET) {\n\n /* \"If there is any command present in the task set, then\n\n * return a service response set to FUNCTION SUCCEEDED\".\n\n */\n\n req->resp.tmf.response = VIRTIO_SCSI_S_FUNCTION_SUCCEEDED;\n\n break;\n\n } else {\n\n VirtIOSCSICancelNotifier *notifier;\n\n\n\n req->remaining++;\n\n notifier = g_new(VirtIOSCSICancelNotifier, 1);\n\n notifier->notifier.notify = virtio_scsi_cancel_notify;\n\n notifier->tmf_req = req;\n\n scsi_req_cancel_async(r, ¬ifier->notifier);\n\n }\n\n }\n\n }\n\n if (--req->remaining > 0) {\n\n ret = -EINPROGRESS;\n\n }\n\n break;\n\n\n\n case VIRTIO_SCSI_T_TMF_I_T_NEXUS_RESET:\n\n target = req->req.tmf.lun[1];\n\n s->resetting++;\n\n QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {\n\n d = DO_UPCAST(SCSIDevice, qdev, kid->child);\n\n if (d->channel == 0 && d->id == target) {\n\n qdev_reset_all(&d->qdev);\n\n }\n\n }\n\n s->resetting--;\n\n break;\n\n\n\n case VIRTIO_SCSI_T_TMF_CLEAR_ACA:\n\n default:\n\n req->resp.tmf.response = VIRTIO_SCSI_S_FUNCTION_REJECTED;\n\n break;\n\n }\n\n\n\n return ret;\n\n\n\nincorrect_lun:\n\n req->resp.tmf.response = VIRTIO_SCSI_S_INCORRECT_LUN;\n\n return ret;\n\n\n\nfail:\n\n req->resp.tmf.response = VIRTIO_SCSI_S_BAD_TARGET;\n\n return ret;\n\n}\n", + "output": "1", + "index": 208 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int cris_mmu_translate_page(struct cris_mmu_result_t *res,\n\n\t\t\t\t CPUState *env, uint32_t vaddr,\n\n\t\t\t\t int rw, int usermode)\n\n{\n\n\tunsigned int vpage;\n\n\tunsigned int idx;\n\n\tuint32_t lo, hi;\n\n\tuint32_t tlb_vpn, tlb_pfn = 0;\n\n\tint tlb_pid, tlb_g, tlb_v, tlb_k, tlb_w, tlb_x;\n\n\tint cfg_v, cfg_k, cfg_w, cfg_x;\t\n\n\tint set, match = 0;\n\n\tuint32_t r_cause;\n\n\tuint32_t r_cfg;\n\n\tint rwcause;\n\n\tint mmu = 1; /* Data mmu is default. */\n\n\tint vect_base;\n\n\n\n\tr_cause = env->sregs[SFR_R_MM_CAUSE];\n\n\tr_cfg = env->sregs[SFR_RW_MM_CFG];\n\n\n\n\tswitch (rw) {\n\n\t\tcase 2: rwcause = CRIS_MMU_ERR_EXEC; mmu = 0; break;\n\n\t\tcase 1: rwcause = CRIS_MMU_ERR_WRITE; break;\n\n\t\tdefault:\n\n\t\tcase 0: rwcause = CRIS_MMU_ERR_READ; break;\n\n\t}\n\n\n\n\t/* I exception vectors 4 - 7, D 8 - 11. */\n\n\tvect_base = (mmu + 1) * 4;\n\n\n\n\tvpage = vaddr >> 13;\n\n\n\n\t/* We know the index which to check on each set.\n\n\t Scan both I and D. */\n\n#if 0\n\n\tfor (set = 0; set < 4; set++) {\n\n\t\tfor (idx = 0; idx < 16; idx++) {\n\n\t\t\tlo = env->tlbsets[mmu][set][idx].lo;\n\n\t\t\thi = env->tlbsets[mmu][set][idx].hi;\n\n\t\t\ttlb_vpn = EXTRACT_FIELD(hi, 13, 31);\n\n\t\t\ttlb_pfn = EXTRACT_FIELD(lo, 13, 31);\n\n\n\n\t\t\tprintf (\"TLB: [%d][%d] hi=%x lo=%x v=%x p=%x\\n\", \n\n\t\t\t\t\tset, idx, hi, lo, tlb_vpn, tlb_pfn);\n\n\t\t}\n\n\t}\n\n#endif\n\n\n\n\tidx = vpage & 15;\n\n\tfor (set = 0; set < 4; set++)\n\n\t{\n\n\t\tlo = env->tlbsets[mmu][set][idx].lo;\n\n\t\thi = env->tlbsets[mmu][set][idx].hi;\n\n\n\n\t\ttlb_vpn = EXTRACT_FIELD(hi, 13, 31);\n\n\t\ttlb_pfn = EXTRACT_FIELD(lo, 13, 31);\n\n\n\n\t\tD(printf(\"TLB[%d][%d] v=%x vpage=%x -> pfn=%x lo=%x hi=%x\\n\", \n\n\t\t\t\ti, idx, tlb_vpn, vpage, tlb_pfn, lo, hi));\n\n\t\tif (tlb_vpn == vpage) {\n\n\t\t\tmatch = 1;\n\n\t\t\tbreak;\n\n\t\t}\n\n\t}\n\n\n\n\tres->bf_vec = vect_base;\n\n\tif (match) {\n\n\t\tcfg_w = EXTRACT_FIELD(r_cfg, 19, 19);\n\n\t\tcfg_k = EXTRACT_FIELD(r_cfg, 18, 18);\n\n\t\tcfg_x = EXTRACT_FIELD(r_cfg, 17, 17);\n\n\t\tcfg_v = EXTRACT_FIELD(r_cfg, 16, 16);\n\n\n\n\t\ttlb_pid = EXTRACT_FIELD(hi, 0, 7);\n\n\t\ttlb_pfn = EXTRACT_FIELD(lo, 13, 31);\n\n\t\ttlb_g = EXTRACT_FIELD(lo, 4, 4);\n\n\t\ttlb_v = EXTRACT_FIELD(lo, 3, 3);\n\n\t\ttlb_k = EXTRACT_FIELD(lo, 2, 2);\n\n\t\ttlb_w = EXTRACT_FIELD(lo, 1, 1);\n\n\t\ttlb_x = EXTRACT_FIELD(lo, 0, 0);\n\n\n\n\t\t/*\n\n\t\tset_exception_vector(0x04, i_mmu_refill);\n\n\t\tset_exception_vector(0x05, i_mmu_invalid);\n\n\t\tset_exception_vector(0x06, i_mmu_access);\n\n\t\tset_exception_vector(0x07, i_mmu_execute);\n\n\t\tset_exception_vector(0x08, d_mmu_refill);\n\n\t\tset_exception_vector(0x09, d_mmu_invalid);\n\n\t\tset_exception_vector(0x0a, d_mmu_access);\n\n\t\tset_exception_vector(0x0b, d_mmu_write);\n\n\t\t*/\n\n\t\tif (!tlb_g \n\n\t\t && tlb_pid != (env->pregs[PR_PID] & 0xff)) {\n\n\t\t\tD(printf (\"tlb: wrong pid %x %x pc=%x\\n\", \n\n\t\t\t\t tlb_pid, env->pregs[PR_PID], env->pc));\n\n\t\t\tmatch = 0;\n\n\t\t\tres->bf_vec = vect_base;\n\n\t\t} else if (rw == 1 && cfg_w && !tlb_w) {\n\n\t\t\tD(printf (\"tlb: write protected %x lo=%x\\n\", \n\n\t\t\t\tvaddr, lo));\n\n\t\t\tmatch = 0;\n\n\t\t\tres->bf_vec = vect_base + 3;\n\n\t\t} else if (cfg_v && !tlb_v) {\n\n\t\t\tD(printf (\"tlb: invalid %x\\n\", vaddr));\n\n\t\t\tset_field(&r_cause, rwcause, 8, 9);\n\n\t\t\tmatch = 0;\n\n\t\t\tres->bf_vec = vect_base + 1;\n\n\t\t}\n\n\n\n\t\tres->prot = 0;\n\n\t\tif (match) {\n\n\t\t\tres->prot |= PAGE_READ;\n\n\t\t\tif (tlb_w)\n\n\t\t\t\tres->prot |= PAGE_WRITE;\n\n\t\t\tif (tlb_x)\n\n\t\t\t\tres->prot |= PAGE_EXEC;\n\n\t\t}\n\n\t\telse\n\n\t\t\tD(dump_tlb(env, mmu));\n\n\n\n\t\tenv->sregs[SFR_RW_MM_TLB_HI] = hi;\n\n\t\tenv->sregs[SFR_RW_MM_TLB_LO] = lo;\n\n\t}\n\n\n\n\tif (!match) {\n\n\t\t/* miss. */\n\n\t\tidx = vpage & 15;\n\n\t\tset = 0;\n\n\n\n\t\t/* Update RW_MM_TLB_SEL. */\n\n\t\tenv->sregs[SFR_RW_MM_TLB_SEL] = 0;\n\n\t\tset_field(&env->sregs[SFR_RW_MM_TLB_SEL], idx, 0, 4);\n\n\t\tset_field(&env->sregs[SFR_RW_MM_TLB_SEL], set, 4, 5);\n\n\n\n\t\t/* Update RW_MM_CAUSE. */\n\n\t\tset_field(&r_cause, rwcause, 8, 2);\n\n\t\tset_field(&r_cause, vpage, 13, 19);\n\n\t\tset_field(&r_cause, env->pregs[PR_PID], 0, 8);\n\n\t\tenv->sregs[SFR_R_MM_CAUSE] = r_cause;\n\n\t\tD(printf(\"refill vaddr=%x pc=%x\\n\", vaddr, env->pc));\n\n\t}\n\n\n\n\n\n\tD(printf (\"%s rw=%d mtch=%d pc=%x va=%x vpn=%x tlbvpn=%x pfn=%x pid=%x\"\n\n\t\t \" %x cause=%x sel=%x sp=%x %x %x\\n\",\n\n\t\t __func__, rw, match, env->pc,\n\n\t\t vaddr, vpage,\n\n\t\t tlb_vpn, tlb_pfn, tlb_pid, \n\n\t\t env->pregs[PR_PID],\n\n\t\t r_cause,\n\n\t\t env->sregs[SFR_RW_MM_TLB_SEL],\n\n\t\t env->regs[R_SP], env->pregs[PR_USP], env->ksp));\n\n\n\n\tres->pfn = tlb_pfn;\n\n\treturn !match;\n\n}\n", + "output": "0", + "index": 22397 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "int ff_h264_decode_slice_header(H264Context *h, H264SliceContext *sl)\n\n{\n\n const SPS *sps;\n\n const PPS *pps;\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 last_pic_structure, last_pic_droppable;\n\n int needs_reinit = 0;\n\n int field_pic_flag, bottom_field_flag;\n\n int frame_num, droppable, picture_structure;\n\n int mb_aff_frame = 0;\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(&sl->gb);\n\n\n\n if (first_mb_in_slice == 0) { // FIXME better field boundary detection\n\n if (h->current_slice && h->cur_pic_ptr && FIELD_PICTURE(h)) {\n\n ff_h264_field_end(h, sl, 1);\n\n }\n\n\n\n h->current_slice = 0;\n\n if (!h->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(&sl->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\\n\",\n\n slice_type, first_mb_in_slice);\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 = ff_h264_golomb_to_pict_type[slice_type];\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 if (!h->setup_finished)\n\n h->pict_type = sl->slice_type;\n\n\n\n pps_id = get_ue_golomb(&sl->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 (!h->ps.pps_list[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 if (!h->setup_finished) {\n\n h->ps.pps = (const PPS*)h->ps.pps_list[pps_id]->data;\n\n } else if (h->ps.pps != (const PPS*)h->ps.pps_list[pps_id]->data) {\n\n av_log(h->avctx, AV_LOG_ERROR, \"PPS changed between slices\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n if (!h->ps.sps_list[h->ps.pps->sps_id]) {\n\n av_log(h->avctx, AV_LOG_ERROR,\n\n \"non-existing SPS %u referenced\\n\",\n\n h->ps.pps->sps_id);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n\n\n if (h->ps.sps != (const SPS*)h->ps.sps_list[h->ps.pps->sps_id]->data) {\n\n h->ps.sps = (SPS*)h->ps.sps_list[h->ps.pps->sps_id]->data;\n\n\n\n if (h->bit_depth_luma != h->ps.sps->bit_depth_luma ||\n\n h->chroma_format_idc != h->ps.sps->chroma_format_idc)\n\n needs_reinit = 1;\n\n\n\n if (h->flags & AV_CODEC_FLAG_LOW_DELAY ||\n\n (h->ps.sps->bitstream_restriction_flag &&\n\n !h->ps.sps->num_reorder_frames)) {\n\n if (h->avctx->has_b_frames > 1 || h->delayed_pic[0])\n\n av_log(h->avctx, AV_LOG_WARNING, \"Delayed frames seen. \"\n\n \"Reenabling low delay requires a codec flush.\\n\");\n\n else\n\n h->low_delay = 1;\n\n }\n\n\n\n if (h->avctx->has_b_frames < 2)\n\n h->avctx->has_b_frames = !h->low_delay;\n\n\n\n }\n\n\n\n pps = h->ps.pps;\n\n sps = h->ps.sps;\n\n\n\n if (!h->setup_finished) {\n\n h->avctx->profile = ff_h264_get_profile(sps);\n\n h->avctx->level = sps->level_idc;\n\n h->avctx->refs = sps->ref_frame_count;\n\n\n\n if (h->mb_width != sps->mb_width ||\n\n h->mb_height != sps->mb_height * (2 - sps->frame_mbs_only_flag))\n\n needs_reinit = 1;\n\n\n\n h->mb_width = sps->mb_width;\n\n h->mb_height = sps->mb_height * (2 - 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 = 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 (sps->video_signal_type_present_flag) {\n\n h->avctx->color_range = sps->full_range ? AVCOL_RANGE_JPEG\n\n : AVCOL_RANGE_MPEG;\n\n if (sps->colour_description_present_flag) {\n\n if (h->avctx->colorspace != sps->colorspace)\n\n needs_reinit = 1;\n\n h->avctx->color_primaries = sps->color_primaries;\n\n h->avctx->color_trc = sps->color_trc;\n\n h->avctx->colorspace = sps->colorspace;\n\n }\n\n }\n\n }\n\n\n\n if (h->context_initialized && needs_reinit) {\n\n h->context_initialized = 0;\n\n if (sl != h->slice_ctx) {\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 h->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)) < 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 (sl != h->slice_ctx) {\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) {\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 frame_num = get_bits(&sl->gb, sps->log2_max_frame_num);\n\n if (!h->setup_finished)\n\n h->frame_num = frame_num;\n\n\n\n sl->mb_mbaff = 0;\n\n\n\n last_pic_structure = h->picture_structure;\n\n last_pic_droppable = h->droppable;\n\n\n\n droppable = h->nal_ref_idc == 0;\n\n if (sps->frame_mbs_only_flag) {\n\n picture_structure = PICT_FRAME;\n\n } else {\n\n field_pic_flag = get_bits1(&sl->gb);\n\n if (field_pic_flag) {\n\n bottom_field_flag = get_bits1(&sl->gb);\n\n picture_structure = PICT_TOP_FIELD + bottom_field_flag;\n\n } else {\n\n picture_structure = PICT_FRAME;\n\n mb_aff_frame = sps->mb_aff;\n\n }\n\n }\n\n if (!h->setup_finished) {\n\n h->droppable = droppable;\n\n h->picture_structure = picture_structure;\n\n h->mb_aff_frame = mb_aff_frame;\n\n }\n\n sl->mb_field_decoding_flag = h->picture_structure != PICT_FRAME;\n\n\n\n if (h->current_slice != 0) {\n\n if (last_pic_structure != picture_structure ||\n\n last_pic_droppable != 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 return AVERROR_INVALIDDATA;\n\n } else if (!h->cur_pic_ptr) {\n\n av_log(h->avctx, AV_LOG_ERROR,\n\n \"unset cur_pic_ptr on slice %d\\n\",\n\n h->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 << 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) > sps->ref_frame_count) {\n\n unwrap_prev_frame_num = (h->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->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 (h->first_field) {\n\n assert(h->cur_pic_ptr);\n\n assert(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 if (!last_pic_droppable && 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->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(&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->frame_num != h->prev_frame_num &&\n\n h->frame_num != (h->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->frame_num, h->prev_frame_num);\n\n ret = initialize_cur_frame(h);\n\n if (ret < 0) {\n\n h->first_field = 0;\n\n return ret;\n\n }\n\n\n\n h->prev_frame_num++;\n\n h->prev_frame_num %= 1 << 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 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 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 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 (h->first_field) {\n\n assert(h->cur_pic_ptr);\n\n assert(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->cur_pic_ptr = NULL;\n\n h->first_field = FIELD_PICTURE(h);\n\n } else {\n\n if (h->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 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 }\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 sl->resync_mb_x = sl->mb_x = first_mb_in_slice % h->mb_width;\n\n sl->resync_mb_y = sl->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 sl->resync_mb_y = sl->mb_y = sl->mb_y + 1;\n\n assert(sl->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 << 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 << (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(&sl->gb); /* idr_pic_id */\n\n\n\n if (sps->poc_type == 0) {\n\n int poc_lsb = get_bits(&sl->gb, sps->log2_max_poc_lsb);\n\n\n\n if (!h->setup_finished)\n\n h->poc_lsb = poc_lsb;\n\n\n\n if (pps->pic_order_present == 1 && h->picture_structure == PICT_FRAME) {\n\n int delta_poc_bottom = get_se_golomb(&sl->gb);\n\n if (!h->setup_finished)\n\n h->delta_poc_bottom = delta_poc_bottom;\n\n }\n\n }\n\n\n\n if (sps->poc_type == 1 && !sps->delta_pic_order_always_zero_flag) {\n\n int delta_poc = get_se_golomb(&sl->gb);\n\n\n\n if (!h->setup_finished)\n\n h->delta_poc[0] = delta_poc;\n\n\n\n if (pps->pic_order_present == 1 && h->picture_structure == PICT_FRAME) {\n\n delta_poc = get_se_golomb(&sl->gb);\n\n\n\n if (!h->setup_finished)\n\n h->delta_poc[1] = delta_poc;\n\n }\n\n }\n\n\n\n if (!h->setup_finished)\n\n ff_init_poc(h, h->cur_pic_ptr->field_poc, &h->cur_pic_ptr->poc);\n\n\n\n if (pps->redundant_pic_cnt_present)\n\n sl->redundant_pic_count = get_ue_golomb(&sl->gb);\n\n\n\n if (sl->slice_type_nos == AV_PICTURE_TYPE_B)\n\n sl->direct_spatial_mv_pred = get_bits1(&sl->gb);\n\n\n\n ret = ff_h264_parse_ref_count(&sl->list_count, sl->ref_count,\n\n &sl->gb, pps, sl->slice_type_nos,\n\n h->picture_structure);\n\n if (ret < 0)\n\n return ret;\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 ((pps->weighted_pred && sl->slice_type_nos == AV_PICTURE_TYPE_P) ||\n\n (pps->weighted_bipred_idc == 1 &&\n\n sl->slice_type_nos == AV_PICTURE_TYPE_B))\n\n ff_h264_pred_weight_table(&sl->gb, sps, sl->ref_count,\n\n sl->slice_type_nos, &sl->pwt);\n\n else if (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->pwt.use_weight = 0;\n\n for (i = 0; i < 2; i++) {\n\n sl->pwt.luma_weight_flag[i] = 0;\n\n sl->pwt.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(h, &sl->gb,\n\n !(h->avctx->active_thread_type & FF_THREAD_FRAME) ||\n\n h->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 (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 && pps->cabac) {\n\n tmp = get_ue_golomb_31(&sl->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 sl->cabac_init_idc = tmp;\n\n }\n\n\n\n sl->last_qscale_diff = 0;\n\n tmp = pps->init_qp + get_se_golomb(&sl->gb);\n\n if (tmp > 51 + 6 * (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(&sl->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(&sl->gb); /* slice_qs_delta */\n\n\n\n sl->deblocking_filter = 1;\n\n sl->slice_alpha_c0_offset = 0;\n\n sl->slice_beta_offset = 0;\n\n if (pps->deblocking_filter_parameters_present) {\n\n tmp = get_ue_golomb_31(&sl->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 sl->deblocking_filter = tmp;\n\n if (sl->deblocking_filter < 2)\n\n sl->deblocking_filter ^= 1; // 1<->0\n\n\n\n if (sl->deblocking_filter) {\n\n sl->slice_alpha_c0_offset = get_se_golomb(&sl->gb) * 2;\n\n sl->slice_beta_offset = get_se_golomb(&sl->gb) * 2;\n\n if (sl->slice_alpha_c0_offset > 12 ||\n\n sl->slice_alpha_c0_offset < -12 ||\n\n sl->slice_beta_offset > 12 ||\n\n sl->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 sl->slice_alpha_c0_offset, sl->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 sl->deblocking_filter = 0;\n\n\n\n if (sl->deblocking_filter == 1 && h->max_contexts > 1) {\n\n if (h->avctx->flags2 & AV_CODEC_FLAG2_FAST) {\n\n /* Cheat slightly for speed:\n\n * Do not bother to deblock across slices. */\n\n sl->deblocking_filter = 2;\n\n } else {\n\n h->max_contexts = 1;\n\n if (!h->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 h->single_decode_warning = 1;\n\n }\n\n if (sl != h->slice_ctx) {\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(sl->slice_alpha_c0_offset, sl->slice_beta_offset) -\n\n FFMAX3(0,\n\n pps->chroma_qp_index_offset[0],\n\n pps->chroma_qp_index_offset[1]) +\n\n 6 * (sps->bit_depth_luma - 8);\n\n\n\n sl->slice_num = ++h->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].parent->f->buf[0]) {\n\n int k;\n\n AVBuffer *buf = sl->ref_list[j][i].parent->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 sl->deblocking_filter,\n\n sl->slice_alpha_c0_offset, sl->slice_beta_offset,\n\n sl->pwt.use_weight,\n\n sl->pwt.use_weight == 1 && sl->pwt.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": 21431 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int decode_dvd_subtitles(DVDSubContext *ctx, AVSubtitle *sub_header,\n\n const uint8_t *buf, int buf_size)\n\n{\n\n int cmd_pos, pos, cmd, x1, y1, x2, y2, offset1, offset2, next_cmd_pos;\n\n int big_offsets, offset_size, is_8bit = 0;\n\n const uint8_t *yuv_palette = 0;\n\n uint8_t colormap[4] = { 0 }, alpha[256] = { 0 };\n\n int date;\n\n int i;\n\n int is_menu = 0;\n\n\n\n if (buf_size < 10)\n\n return -1;\n\n memset(sub_header, 0, sizeof(*sub_header));\n\n\n\n if (AV_RB16(buf) == 0) { /* HD subpicture with 4-byte offsets */\n\n big_offsets = 1;\n\n offset_size = 4;\n\n cmd_pos = 6;\n\n } else {\n\n big_offsets = 0;\n\n offset_size = 2;\n\n cmd_pos = 2;\n\n }\n\n\n\n cmd_pos = READ_OFFSET(buf + cmd_pos);\n\n\n\n while (cmd_pos > 0 && cmd_pos < buf_size - 2 - offset_size) {\n\n date = AV_RB16(buf + cmd_pos);\n\n next_cmd_pos = READ_OFFSET(buf + cmd_pos + 2);\n\n av_dlog(NULL, \"cmd_pos=0x%04x next=0x%04x date=%d\\n\",\n\n cmd_pos, next_cmd_pos, date);\n\n pos = cmd_pos + 2 + offset_size;\n\n offset1 = -1;\n\n offset2 = -1;\n\n x1 = y1 = x2 = y2 = 0;\n\n while (pos < buf_size) {\n\n cmd = buf[pos++];\n\n av_dlog(NULL, \"cmd=%02x\\n\", cmd);\n\n switch(cmd) {\n\n case 0x00:\n\n /* menu subpicture */\n\n is_menu = 1;\n\n break;\n\n case 0x01:\n\n /* set start date */\n\n sub_header->start_display_time = (date << 10) / 90;\n\n break;\n\n case 0x02:\n\n /* set end date */\n\n sub_header->end_display_time = (date << 10) / 90;\n\n break;\n\n case 0x03:\n\n /* set colormap */\n\n if ((buf_size - pos) < 2)\n\n goto fail;\n\n colormap[3] = buf[pos] >> 4;\n\n colormap[2] = buf[pos] & 0x0f;\n\n colormap[1] = buf[pos + 1] >> 4;\n\n colormap[0] = buf[pos + 1] & 0x0f;\n\n pos += 2;\n\n break;\n\n case 0x04:\n\n /* set alpha */\n\n if ((buf_size - pos) < 2)\n\n goto fail;\n\n alpha[3] = buf[pos] >> 4;\n\n alpha[2] = buf[pos] & 0x0f;\n\n alpha[1] = buf[pos + 1] >> 4;\n\n alpha[0] = buf[pos + 1] & 0x0f;\n\n pos += 2;\n\n av_dlog(NULL, \"alpha=%x%x%x%x\\n\", alpha[0],alpha[1],alpha[2],alpha[3]);\n\n break;\n\n case 0x05:\n\n case 0x85:\n\n if ((buf_size - pos) < 6)\n\n goto fail;\n\n x1 = (buf[pos] << 4) | (buf[pos + 1] >> 4);\n\n x2 = ((buf[pos + 1] & 0x0f) << 8) | buf[pos + 2];\n\n y1 = (buf[pos + 3] << 4) | (buf[pos + 4] >> 4);\n\n y2 = ((buf[pos + 4] & 0x0f) << 8) | buf[pos + 5];\n\n if (cmd & 0x80)\n\n is_8bit = 1;\n\n av_dlog(NULL, \"x1=%d x2=%d y1=%d y2=%d\\n\", x1, x2, y1, y2);\n\n pos += 6;\n\n break;\n\n case 0x06:\n\n if ((buf_size - pos) < 4)\n\n goto fail;\n\n offset1 = AV_RB16(buf + pos);\n\n offset2 = AV_RB16(buf + pos + 2);\n\n av_dlog(NULL, \"offset1=0x%04x offset2=0x%04x\\n\", offset1, offset2);\n\n pos += 4;\n\n break;\n\n case 0x86:\n\n if ((buf_size - pos) < 8)\n\n goto fail;\n\n offset1 = AV_RB32(buf + pos);\n\n offset2 = AV_RB32(buf + pos + 4);\n\n av_dlog(NULL, \"offset1=0x%04x offset2=0x%04x\\n\", offset1, offset2);\n\n pos += 8;\n\n break;\n\n\n\n case 0x83:\n\n /* HD set palette */\n\n if ((buf_size - pos) < 768)\n\n goto fail;\n\n yuv_palette = buf + pos;\n\n pos += 768;\n\n break;\n\n case 0x84:\n\n /* HD set contrast (alpha) */\n\n if ((buf_size - pos) < 256)\n\n goto fail;\n\n for (i = 0; i < 256; i++)\n\n alpha[i] = 0xFF - buf[pos+i];\n\n pos += 256;\n\n break;\n\n\n\n case 0xff:\n\n goto the_end;\n\n default:\n\n av_dlog(NULL, \"unrecognised subpicture command 0x%x\\n\", cmd);\n\n goto the_end;\n\n }\n\n }\n\n the_end:\n\n if (offset1 >= 0) {\n\n int w, h;\n\n uint8_t *bitmap;\n\n\n\n /* decode the bitmap */\n\n w = x2 - x1 + 1;\n\n if (w < 0)\n\n w = 0;\n\n h = y2 - y1;\n\n if (h < 0)\n\n h = 0;\n\n if (w > 0 && h > 0) {\n\n if (sub_header->rects != NULL) {\n\n for (i = 0; i < sub_header->num_rects; i++) {\n\n av_freep(&sub_header->rects[i]->pict.data[0]);\n\n av_freep(&sub_header->rects[i]->pict.data[1]);\n\n av_freep(&sub_header->rects[i]);\n\n }\n\n av_freep(&sub_header->rects);\n\n sub_header->num_rects = 0;\n\n }\n\n\n\n bitmap = av_malloc(w * h);\n\n sub_header->rects = av_mallocz(sizeof(*sub_header->rects));\n\n sub_header->rects[0] = av_mallocz(sizeof(AVSubtitleRect));\n\n sub_header->num_rects = 1;\n\n sub_header->rects[0]->pict.data[0] = bitmap;\n\n decode_rle(bitmap, w * 2, w, (h + 1) / 2,\n\n buf, offset1, buf_size, is_8bit);\n\n decode_rle(bitmap + w, w * 2, w, h / 2,\n\n buf, offset2, buf_size, is_8bit);\n\n sub_header->rects[0]->pict.data[1] = av_mallocz(AVPALETTE_SIZE);\n\n if (is_8bit) {\n\n if (yuv_palette == 0)\n\n goto fail;\n\n sub_header->rects[0]->nb_colors = 256;\n\n yuv_a_to_rgba(yuv_palette, alpha, (uint32_t*)sub_header->rects[0]->pict.data[1], 256);\n\n } else {\n\n sub_header->rects[0]->nb_colors = 4;\n\n guess_palette(ctx,\n\n (uint32_t*)sub_header->rects[0]->pict.data[1],\n\n colormap, alpha, 0xffff00);\n\n }\n\n sub_header->rects[0]->x = x1;\n\n sub_header->rects[0]->y = y1;\n\n sub_header->rects[0]->w = w;\n\n sub_header->rects[0]->h = h;\n\n sub_header->rects[0]->type = SUBTITLE_BITMAP;\n\n sub_header->rects[0]->pict.linesize[0] = w;\n\n }\n\n }\n\n if (next_cmd_pos == cmd_pos)\n\n break;\n\n cmd_pos = next_cmd_pos;\n\n }\n\n if (sub_header->num_rects > 0)\n\n return is_menu;\n\n fail:\n\n if (sub_header->rects != NULL) {\n\n for (i = 0; i < sub_header->num_rects; i++) {\n\n av_freep(&sub_header->rects[i]->pict.data[0]);\n\n av_freep(&sub_header->rects[i]->pict.data[1]);\n\n av_freep(&sub_header->rects[i]);\n\n }\n\n av_freep(&sub_header->rects);\n\n sub_header->num_rects = 0;\n\n }\n\n return -1;\n\n}\n", + "output": "0", + "index": 13601 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost)\n\n{\n\n AVFormatContext *s = of->ctx;\n\n AVStream *st = ost->st;\n\n int ret;\n\n\n\n if (!of->header_written) {\n\n AVPacket tmp_pkt = {0};\n\n /* the muxer is not initialized yet, buffer the packet */\n\n if (!av_fifo_space(ost->muxing_queue)) {\n\n int new_size = FFMIN(2 * av_fifo_size(ost->muxing_queue),\n\n ost->max_muxing_queue_size);\n\n if (new_size <= av_fifo_size(ost->muxing_queue)) {\n\n av_log(NULL, AV_LOG_ERROR,\n\n \"Too many packets buffered for output stream %d:%d.\\n\",\n\n ost->file_index, ost->st->index);\n\n exit_program(1);\n\n }\n\n ret = av_fifo_realloc2(ost->muxing_queue, new_size);\n\n if (ret < 0)\n\n exit_program(1);\n\n }\n\n ret = av_packet_ref(&tmp_pkt, pkt);\n\n if (ret < 0)\n\n exit_program(1);\n\n av_fifo_generic_write(ost->muxing_queue, &tmp_pkt, sizeof(tmp_pkt), NULL);\n\n av_packet_unref(pkt);\n\n return;\n\n }\n\n\n\n if ((st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||\n\n (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))\n\n pkt->pts = pkt->dts = AV_NOPTS_VALUE;\n\n\n\n /*\n\n * Audio encoders may split the packets -- #frames in != #packets out.\n\n * But there is no reordering, so we can limit the number of output packets\n\n * by simply dropping them here.\n\n * Counting encoded video frames needs to be done separately because of\n\n * reordering, see do_video_out()\n\n */\n\n if (!(st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && ost->encoding_needed)) {\n\n if (ost->frame_number >= ost->max_frames) {\n\n av_packet_unref(pkt);\n\n return;\n\n }\n\n ost->frame_number++;\n\n }\n\n if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {\n\n int i;\n\n uint8_t *sd = av_packet_get_side_data(pkt, AV_PKT_DATA_QUALITY_STATS,\n\n NULL);\n\n ost->quality = sd ? AV_RL32(sd) : -1;\n\n ost->pict_type = sd ? sd[4] : AV_PICTURE_TYPE_NONE;\n\n\n\n for (i = 0; ierror); i++) {\n\n if (sd && i < sd[5])\n\n ost->error[i] = AV_RL64(sd + 8 + 8*i);\n\n else\n\n ost->error[i] = -1;\n\n }\n\n\n\n if (ost->frame_rate.num && ost->is_cfr) {\n\n if (pkt->duration > 0)\n\n av_log(NULL, AV_LOG_WARNING, \"Overriding packet duration by frame rate, this should not happen\\n\");\n\n pkt->duration = av_rescale_q(1, av_inv_q(ost->frame_rate),\n\n ost->mux_timebase);\n\n }\n\n }\n\n\n\n av_packet_rescale_ts(pkt, ost->mux_timebase, ost->st->time_base);\n\n\n\n if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS)) {\n\n if (pkt->dts != AV_NOPTS_VALUE &&\n\n pkt->pts != AV_NOPTS_VALUE &&\n\n pkt->dts > pkt->pts) {\n\n av_log(s, AV_LOG_WARNING, \"Invalid DTS: %\"PRId64\" PTS: %\"PRId64\" in output stream %d:%d, replacing by guess\\n\",\n\n pkt->dts, pkt->pts,\n\n ost->file_index, ost->st->index);\n\n pkt->pts =\n\n pkt->dts = pkt->pts + pkt->dts + ost->last_mux_dts + 1\n\n - FFMIN3(pkt->pts, pkt->dts, ost->last_mux_dts + 1)\n\n - FFMAX3(pkt->pts, pkt->dts, ost->last_mux_dts + 1);\n\n }\n\n if ((st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO || st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) &&\n\n pkt->dts != AV_NOPTS_VALUE &&\n\n !(st->codecpar->codec_id == AV_CODEC_ID_VP9 && ost->stream_copy) &&\n\n ost->last_mux_dts != AV_NOPTS_VALUE) {\n\n int64_t max = ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);\n\n if (pkt->dts < max) {\n\n int loglevel = max - pkt->dts > 2 || st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG;\n\n av_log(s, loglevel, \"Non-monotonous DTS in output stream \"\n\n \"%d:%d; previous: %\"PRId64\", current: %\"PRId64\"; \",\n\n ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);\n\n if (exit_on_error) {\n\n av_log(NULL, AV_LOG_FATAL, \"aborting.\\n\");\n\n exit_program(1);\n\n }\n\n av_log(s, loglevel, \"changing to %\"PRId64\". This may result \"\n\n \"in incorrect timestamps in the output file.\\n\",\n\n max);\n\n if (pkt->pts >= pkt->dts)\n\n pkt->pts = FFMAX(pkt->pts, max);\n\n pkt->dts = max;\n\n }\n\n }\n\n }\n\n ost->last_mux_dts = pkt->dts;\n\n\n\n ost->data_size += pkt->size;\n\n ost->packets_written++;\n\n\n\n pkt->stream_index = ost->index;\n\n\n\n if (debug_ts) {\n\n av_log(NULL, AV_LOG_INFO, \"muxer <- type:%s \"\n\n \"pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\\n\",\n\n av_get_media_type_string(ost->enc_ctx->codec_type),\n\n av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),\n\n av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),\n\n pkt->size\n\n );\n\n }\n\n\n\n ret = av_interleaved_write_frame(s, pkt);\n\n if (ret < 0) {\n\n print_error(\"av_interleaved_write_frame()\", ret);\n\n main_return_code = 1;\n\n close_all_output_streams(ost, MUXER_FINISHED | ENCODER_FINISHED, ENCODER_FINISHED);\n\n }\n\n av_packet_unref(pkt);\n\n}\n", + "output": "0", + "index": 15919 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int elf_core_dump(int signr, const CPUState *env)\n\n{\n\n const TaskState *ts = (const TaskState *)env->opaque;\n\n struct vm_area_struct *vma = NULL;\n\n char corefile[PATH_MAX];\n\n struct elf_note_info info;\n\n struct elfhdr elf;\n\n struct elf_phdr phdr;\n\n struct rlimit dumpsize;\n\n struct mm_struct *mm = NULL;\n\n off_t offset = 0, data_offset = 0;\n\n int segs = 0;\n\n int fd = -1;\n\n\n\n errno = 0;\n\n getrlimit(RLIMIT_CORE, &dumpsize);\n\n if (dumpsize.rlim_cur == 0)\n\n return 0;\n\n\n\n if (core_dump_filename(ts, corefile, sizeof (corefile)) < 0)\n\n return (-errno);\n\n\n\n if ((fd = open(corefile, O_WRONLY | O_CREAT,\n\n S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH)) < 0)\n\n return (-errno);\n\n\n\n /*\n\n * Walk through target process memory mappings and\n\n * set up structure containing this information. After\n\n * this point vma_xxx functions can be used.\n\n */\n\n if ((mm = vma_init()) == NULL)\n\n goto out;\n\n\n\n walk_memory_regions(mm, vma_walker);\n\n segs = vma_get_mapping_count(mm);\n\n\n\n /*\n\n * Construct valid coredump ELF header. We also\n\n * add one more segment for notes.\n\n */\n\n fill_elf_header(&elf, segs + 1, ELF_MACHINE, 0);\n\n if (dump_write(fd, &elf, sizeof (elf)) != 0)\n\n goto out;\n\n\n\n /* fill in in-memory version of notes */\n\n if (fill_note_info(&info, signr, env) < 0)\n\n goto out;\n\n\n\n offset += sizeof (elf); /* elf header */\n\n offset += (segs + 1) * sizeof (struct elf_phdr); /* program headers */\n\n\n\n /* write out notes program header */\n\n fill_elf_note_phdr(&phdr, info.notes_size, offset);\n\n\n\n offset += info.notes_size;\n\n if (dump_write(fd, &phdr, sizeof (phdr)) != 0)\n\n goto out;\n\n\n\n /*\n\n * ELF specification wants data to start at page boundary so\n\n * we align it here.\n\n */\n\n offset = roundup(offset, ELF_EXEC_PAGESIZE);\n\n\n\n /*\n\n * Write program headers for memory regions mapped in\n\n * the target process.\n\n */\n\n for (vma = vma_first(mm); vma != NULL; vma = vma_next(vma)) {\n\n (void) memset(&phdr, 0, sizeof (phdr));\n\n\n\n phdr.p_type = PT_LOAD;\n\n phdr.p_offset = offset;\n\n phdr.p_vaddr = vma->vma_start;\n\n phdr.p_paddr = 0;\n\n phdr.p_filesz = vma_dump_size(vma);\n\n offset += phdr.p_filesz;\n\n phdr.p_memsz = vma->vma_end - vma->vma_start;\n\n phdr.p_flags = vma->vma_flags & PROT_READ ? PF_R : 0;\n\n if (vma->vma_flags & PROT_WRITE)\n\n phdr.p_flags |= PF_W;\n\n if (vma->vma_flags & PROT_EXEC)\n\n phdr.p_flags |= PF_X;\n\n phdr.p_align = ELF_EXEC_PAGESIZE;\n\n\n\n dump_write(fd, &phdr, sizeof (phdr));\n\n }\n\n\n\n /*\n\n * Next we write notes just after program headers. No\n\n * alignment needed here.\n\n */\n\n if (write_note_info(&info, fd) < 0)\n\n goto out;\n\n\n\n /* align data to page boundary */\n\n data_offset = lseek(fd, 0, SEEK_CUR);\n\n data_offset = TARGET_PAGE_ALIGN(data_offset);\n\n if (lseek(fd, data_offset, SEEK_SET) != data_offset)\n\n goto out;\n\n\n\n /*\n\n * Finally we can dump process memory into corefile as well.\n\n */\n\n for (vma = vma_first(mm); vma != NULL; vma = vma_next(vma)) {\n\n abi_ulong addr;\n\n abi_ulong end;\n\n\n\n end = vma->vma_start + vma_dump_size(vma);\n\n\n\n for (addr = vma->vma_start; addr < end;\n\n addr += TARGET_PAGE_SIZE) {\n\n char page[TARGET_PAGE_SIZE];\n\n int error;\n\n\n\n /*\n\n * Read in page from target process memory and\n\n * write it to coredump file.\n\n */\n\n error = copy_from_user(page, addr, sizeof (page));\n\n if (error != 0) {\n\n (void) fprintf(stderr, \"unable to dump \" TARGET_ABI_FMT_lx \"\\n\",\n\n addr);\n\n errno = -error;\n\n goto out;\n\n }\n\n if (dump_write(fd, page, TARGET_PAGE_SIZE) < 0)\n\n goto out;\n\n }\n\n }\n\n\n\n out:\n\n free_note_info(&info);\n\n if (mm != NULL)\n\n vma_delete(mm);\n\n (void) close(fd);\n\n\n\n if (errno != 0)\n\n return (-errno);\n\n return (0);\n\n}\n", + "output": "0", + "index": 18856 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static inline void RENAME(yvu9_to_yuy2)(const uint8_t *src1, const uint8_t *src2, const uint8_t *src3,\n\n\t\t\tuint8_t *dst,\n\n\t\t\tlong width, long height,\n\n\t\t\tlong srcStride1, long srcStride2,\n\n\t\t\tlong srcStride3, long dstStride)\n\n{\n\n long y,x,w,h;\n\n w=width/2; h=height;\n\n for(y=0;y>2);\n\n\tconst uint8_t* vp=src3+srcStride3*(y>>2);\n\n\tuint8_t* d=dst+dstStride*y;\n\n\tx=0;\n\n#ifdef HAVE_MMX\n\n\tfor(;xsysconfig = value & 1;\n\n break;\n\n\n\n case 0x018:\t/* PRCM_IRQSTATUS_MPU */\n\n s->irqst[0] &= ~value;\n\n omap_prcm_int_update(s, 0);\n\n break;\n\n case 0x01c:\t/* PRCM_IRQENABLE_MPU */\n\n s->irqen[0] = value & 0x3f;\n\n omap_prcm_int_update(s, 0);\n\n break;\n\n\n\n case 0x050:\t/* PRCM_VOLTCTRL */\n\n s->voltctrl = value & 0xf1c3;\n\n break;\n\n\n\n case 0x060:\t/* PRCM_CLKSRC_CTRL */\n\n s->clksrc[0] = value & 0xdb;\n\n /* TODO update clocks */\n\n break;\n\n\n\n case 0x070:\t/* PRCM_CLKOUT_CTRL */\n\n s->clkout[0] = value & 0xbbbb;\n\n /* TODO update clocks */\n\n break;\n\n\n\n case 0x078:\t/* PRCM_CLKEMUL_CTRL */\n\n s->clkemul[0] = value & 1;\n\n /* TODO update clocks */\n\n break;\n\n\n\n case 0x080:\t/* PRCM_CLKCFG_CTRL */\n\n break;\n\n\n\n case 0x090:\t/* PRCM_VOLTSETUP */\n\n s->setuptime[0] = value & 0xffff;\n\n break;\n\n case 0x094:\t/* PRCM_CLKSSETUP */\n\n s->setuptime[1] = value & 0xffff;\n\n break;\n\n\n\n case 0x098:\t/* PRCM_POLCTRL */\n\n s->clkpol[0] = value & 0x701;\n\n break;\n\n\n\n case 0x0b0:\t/* GENERAL_PURPOSE1 */\n\n case 0x0b4:\t/* GENERAL_PURPOSE2 */\n\n case 0x0b8:\t/* GENERAL_PURPOSE3 */\n\n case 0x0bc:\t/* GENERAL_PURPOSE4 */\n\n case 0x0c0:\t/* GENERAL_PURPOSE5 */\n\n case 0x0c4:\t/* GENERAL_PURPOSE6 */\n\n case 0x0c8:\t/* GENERAL_PURPOSE7 */\n\n case 0x0cc:\t/* GENERAL_PURPOSE8 */\n\n case 0x0d0:\t/* GENERAL_PURPOSE9 */\n\n case 0x0d4:\t/* GENERAL_PURPOSE10 */\n\n case 0x0d8:\t/* GENERAL_PURPOSE11 */\n\n case 0x0dc:\t/* GENERAL_PURPOSE12 */\n\n case 0x0e0:\t/* GENERAL_PURPOSE13 */\n\n case 0x0e4:\t/* GENERAL_PURPOSE14 */\n\n case 0x0e8:\t/* GENERAL_PURPOSE15 */\n\n case 0x0ec:\t/* GENERAL_PURPOSE16 */\n\n case 0x0f0:\t/* GENERAL_PURPOSE17 */\n\n case 0x0f4:\t/* GENERAL_PURPOSE18 */\n\n case 0x0f8:\t/* GENERAL_PURPOSE19 */\n\n case 0x0fc:\t/* GENERAL_PURPOSE20 */\n\n s->scratch[(addr - 0xb0) >> 2] = value;\n\n break;\n\n\n\n case 0x140:\t/* CM_CLKSEL_MPU */\n\n s->clksel[0] = value & 0x1f;\n\n /* TODO update clocks */\n\n break;\n\n case 0x148:\t/* CM_CLKSTCTRL_MPU */\n\n s->clkctrl[0] = value & 0x1f;\n\n break;\n\n\n\n case 0x158:\t/* RM_RSTST_MPU */\n\n s->rst[0] &= ~value;\n\n break;\n\n case 0x1c8:\t/* PM_WKDEP_MPU */\n\n s->wkup[0] = value & 0x15;\n\n break;\n\n\n\n case 0x1d4:\t/* PM_EVGENCTRL_MPU */\n\n s->ev = value & 0x1f;\n\n break;\n\n case 0x1d8:\t/* PM_EVEGENONTIM_MPU */\n\n s->evtime[0] = value;\n\n break;\n\n case 0x1dc:\t/* PM_EVEGENOFFTIM_MPU */\n\n s->evtime[1] = value;\n\n break;\n\n\n\n case 0x1e0:\t/* PM_PWSTCTRL_MPU */\n\n s->power[0] = value & 0xc0f;\n\n break;\n\n\n\n case 0x200:\t/* CM_FCLKEN1_CORE */\n\n s->clken[0] = value & 0xbfffffff;\n\n /* TODO update clocks */\n\n /* The EN_EAC bit only gets/puts func_96m_clk. */\n\n break;\n\n case 0x204:\t/* CM_FCLKEN2_CORE */\n\n s->clken[1] = value & 0x00000007;\n\n /* TODO update clocks */\n\n break;\n\n case 0x210:\t/* CM_ICLKEN1_CORE */\n\n s->clken[2] = value & 0xfffffff9;\n\n /* TODO update clocks */\n\n /* The EN_EAC bit only gets/puts core_l4_iclk. */\n\n break;\n\n case 0x214:\t/* CM_ICLKEN2_CORE */\n\n s->clken[3] = value & 0x00000007;\n\n /* TODO update clocks */\n\n break;\n\n case 0x21c:\t/* CM_ICLKEN4_CORE */\n\n s->clken[4] = value & 0x0000001f;\n\n /* TODO update clocks */\n\n break;\n\n\n\n case 0x230:\t/* CM_AUTOIDLE1_CORE */\n\n s->clkidle[0] = value & 0xfffffff9;\n\n /* TODO update clocks */\n\n break;\n\n case 0x234:\t/* CM_AUTOIDLE2_CORE */\n\n s->clkidle[1] = value & 0x00000007;\n\n /* TODO update clocks */\n\n break;\n\n case 0x238:\t/* CM_AUTOIDLE3_CORE */\n\n s->clkidle[2] = value & 0x00000007;\n\n /* TODO update clocks */\n\n break;\n\n case 0x23c:\t/* CM_AUTOIDLE4_CORE */\n\n s->clkidle[3] = value & 0x0000001f;\n\n /* TODO update clocks */\n\n break;\n\n\n\n case 0x240:\t/* CM_CLKSEL1_CORE */\n\n s->clksel[1] = value & 0x0fffbf7f;\n\n /* TODO update clocks */\n\n break;\n\n\n\n case 0x244:\t/* CM_CLKSEL2_CORE */\n\n s->clksel[2] = value & 0x00fffffc;\n\n /* TODO update clocks */\n\n break;\n\n\n\n case 0x248:\t/* CM_CLKSTCTRL_CORE */\n\n s->clkctrl[1] = value & 0x7;\n\n break;\n\n\n\n case 0x2a0:\t/* PM_WKEN1_CORE */\n\n s->wken[0] = value & 0x04667ff8;\n\n break;\n\n case 0x2a4:\t/* PM_WKEN2_CORE */\n\n s->wken[1] = value & 0x00000005;\n\n break;\n\n\n\n case 0x2b0:\t/* PM_WKST1_CORE */\n\n s->wkst[0] &= ~value;\n\n break;\n\n case 0x2b4:\t/* PM_WKST2_CORE */\n\n s->wkst[1] &= ~value;\n\n break;\n\n\n\n case 0x2e0:\t/* PM_PWSTCTRL_CORE */\n\n s->power[1] = (value & 0x00fc3f) | (1 << 2);\n\n break;\n\n\n\n case 0x300:\t/* CM_FCLKEN_GFX */\n\n s->clken[5] = value & 6;\n\n /* TODO update clocks */\n\n break;\n\n case 0x310:\t/* CM_ICLKEN_GFX */\n\n s->clken[6] = value & 1;\n\n /* TODO update clocks */\n\n break;\n\n case 0x340:\t/* CM_CLKSEL_GFX */\n\n s->clksel[3] = value & 7;\n\n /* TODO update clocks */\n\n break;\n\n case 0x348:\t/* CM_CLKSTCTRL_GFX */\n\n s->clkctrl[2] = value & 1;\n\n break;\n\n case 0x350:\t/* RM_RSTCTRL_GFX */\n\n s->rstctrl[0] = value & 1;\n\n /* TODO: reset */\n\n break;\n\n case 0x358:\t/* RM_RSTST_GFX */\n\n s->rst[1] &= ~value;\n\n break;\n\n case 0x3c8:\t/* PM_WKDEP_GFX */\n\n s->wkup[1] = value & 0x13;\n\n break;\n\n case 0x3e0:\t/* PM_PWSTCTRL_GFX */\n\n s->power[2] = (value & 0x00c0f) | (3 << 2);\n\n break;\n\n\n\n case 0x400:\t/* CM_FCLKEN_WKUP */\n\n s->clken[7] = value & 0xd;\n\n /* TODO update clocks */\n\n break;\n\n case 0x410:\t/* CM_ICLKEN_WKUP */\n\n s->clken[8] = value & 0x3f;\n\n /* TODO update clocks */\n\n break;\n\n case 0x430:\t/* CM_AUTOIDLE_WKUP */\n\n s->clkidle[4] = value & 0x0000003f;\n\n /* TODO update clocks */\n\n break;\n\n case 0x440:\t/* CM_CLKSEL_WKUP */\n\n s->clksel[4] = value & 3;\n\n /* TODO update clocks */\n\n break;\n\n case 0x450:\t/* RM_RSTCTRL_WKUP */\n\n /* TODO: reset */\n\n if (value & 2)\n\n qemu_system_reset_request();\n\n break;\n\n case 0x454:\t/* RM_RSTTIME_WKUP */\n\n s->rsttime_wkup = value & 0x1fff;\n\n break;\n\n case 0x458:\t/* RM_RSTST_WKUP */\n\n s->rst[2] &= ~value;\n\n break;\n\n case 0x4a0:\t/* PM_WKEN_WKUP */\n\n s->wken[2] = value & 0x00000005;\n\n break;\n\n case 0x4b0:\t/* PM_WKST_WKUP */\n\n s->wkst[2] &= ~value;\n\n break;\n\n\n\n case 0x500:\t/* CM_CLKEN_PLL */\n\n if (value & 0xffffff30)\n\n fprintf(stderr, \"%s: write 0s in CM_CLKEN_PLL for \"\n\n \"future compatibility\\n\", __FUNCTION__);\n\n if ((s->clken[9] ^ value) & 0xcc) {\n\n s->clken[9] &= ~0xcc;\n\n s->clken[9] |= value & 0xcc;\n\n omap_prcm_apll_update(s);\n\n }\n\n if ((s->clken[9] ^ value) & 3) {\n\n s->clken[9] &= ~3;\n\n s->clken[9] |= value & 3;\n\n omap_prcm_dpll_update(s);\n\n }\n\n break;\n\n case 0x530:\t/* CM_AUTOIDLE_PLL */\n\n s->clkidle[5] = value & 0x000000cf;\n\n /* TODO update clocks */\n\n break;\n\n case 0x540:\t/* CM_CLKSEL1_PLL */\n\n if (value & 0xfc4000d7)\n\n fprintf(stderr, \"%s: write 0s in CM_CLKSEL1_PLL for \"\n\n \"future compatibility\\n\", __FUNCTION__);\n\n if ((s->clksel[5] ^ value) & 0x003fff00) {\n\n s->clksel[5] = value & 0x03bfff28;\n\n omap_prcm_dpll_update(s);\n\n }\n\n /* TODO update the other clocks */\n\n\n\n s->clksel[5] = value & 0x03bfff28;\n\n break;\n\n case 0x544:\t/* CM_CLKSEL2_PLL */\n\n if (value & ~3)\n\n fprintf(stderr, \"%s: write 0s in CM_CLKSEL2_PLL[31:2] for \"\n\n \"future compatibility\\n\", __FUNCTION__);\n\n if (s->clksel[6] != (value & 3)) {\n\n s->clksel[6] = value & 3;\n\n omap_prcm_dpll_update(s);\n\n }\n\n break;\n\n\n\n case 0x800:\t/* CM_FCLKEN_DSP */\n\n s->clken[10] = value & 0x501;\n\n /* TODO update clocks */\n\n break;\n\n case 0x810:\t/* CM_ICLKEN_DSP */\n\n s->clken[11] = value & 0x2;\n\n /* TODO update clocks */\n\n break;\n\n case 0x830:\t/* CM_AUTOIDLE_DSP */\n\n s->clkidle[6] = value & 0x2;\n\n /* TODO update clocks */\n\n break;\n\n case 0x840:\t/* CM_CLKSEL_DSP */\n\n s->clksel[7] = value & 0x3fff;\n\n /* TODO update clocks */\n\n break;\n\n case 0x848:\t/* CM_CLKSTCTRL_DSP */\n\n s->clkctrl[3] = value & 0x101;\n\n break;\n\n case 0x850:\t/* RM_RSTCTRL_DSP */\n\n /* TODO: reset */\n\n break;\n\n case 0x858:\t/* RM_RSTST_DSP */\n\n s->rst[3] &= ~value;\n\n break;\n\n case 0x8c8:\t/* PM_WKDEP_DSP */\n\n s->wkup[2] = value & 0x13;\n\n break;\n\n case 0x8e0:\t/* PM_PWSTCTRL_DSP */\n\n s->power[3] = (value & 0x03017) | (3 << 2);\n\n break;\n\n\n\n case 0x8f0:\t/* PRCM_IRQSTATUS_DSP */\n\n s->irqst[1] &= ~value;\n\n omap_prcm_int_update(s, 1);\n\n break;\n\n case 0x8f4:\t/* PRCM_IRQENABLE_DSP */\n\n s->irqen[1] = value & 0x7;\n\n omap_prcm_int_update(s, 1);\n\n break;\n\n\n\n case 0x8f8:\t/* PRCM_IRQSTATUS_IVA */\n\n s->irqst[2] &= ~value;\n\n omap_prcm_int_update(s, 2);\n\n break;\n\n case 0x8fc:\t/* PRCM_IRQENABLE_IVA */\n\n s->irqen[2] = value & 0x7;\n\n omap_prcm_int_update(s, 2);\n\n break;\n\n\n\n default:\n\n OMAP_BAD_REG(addr);\n\n return;\n\n }\n\n}\n", + "output": "0", + "index": 15661 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "void ff_htmlmarkup_to_ass(void *log_ctx, AVBPrint *dst, const char *in)\n\n{\n\n char *param, buffer[128], tmp[128];\n\n int len, tag_close, sptr = 1, line_start = 1, an = 0, end = 0;\n\n SrtStack stack[16];\n\n\n\n stack[0].tag[0] = 0;\n\n strcpy(stack[0].param[PARAM_SIZE], \"{\\\\fs}\");\n\n strcpy(stack[0].param[PARAM_COLOR], \"{\\\\c}\");\n\n strcpy(stack[0].param[PARAM_FACE], \"{\\\\fn}\");\n\n\n\n for (; !end && *in; in++) {\n\n switch (*in) {\n\n case '\\r':\n\n break;\n\n case '\\n':\n\n if (line_start) {\n\n end = 1;\n\n break;\n\n }\n\n rstrip_spaces_buf(dst);\n\n av_bprintf(dst, \"\\\\N\");\n\n line_start = 1;\n\n break;\n\n case ' ':\n\n if (!line_start)\n\n av_bprint_chars(dst, *in, 1);\n\n break;\n\n case '{': /* skip all {\\xxx} substrings except for {\\an%d}\n\n and all microdvd like styles such as {Y:xxx} */\n\n len = 0;\n\n an += sscanf(in, \"{\\\\an%*1u}%n\", &len) >= 0 && len > 0;\n\n if ((an != 1 && (len = 0, sscanf(in, \"{\\\\%*[^}]}%n\", &len) >= 0 && len > 0)) ||\n\n (len = 0, sscanf(in, \"{%*1[CcFfoPSsYy]:%*[^}]}%n\", &len) >= 0 && len > 0)) {\n\n in += len - 1;\n\n } else\n\n av_bprint_chars(dst, *in, 1);\n\n break;\n\n case '<':\n\n tag_close = in[1] == '/';\n\n len = 0;\n\n if (sscanf(in+tag_close+1, \"%127[^>]>%n\", buffer, &len) >= 1 && len > 0) {\n\n const char *tagname = buffer;\n\n while (*tagname == ' ')\n\n tagname++;\n\n if ((param = strchr(tagname, ' ')))\n\n *param++ = 0;\n\n if ((!tag_close && sptr < FF_ARRAY_ELEMS(stack)) ||\n\n ( tag_close && sptr > 0 && !strcmp(stack[sptr-1].tag, tagname))) {\n\n int i, j, unknown = 0;\n\n in += len + tag_close;\n\n if (!tag_close)\n\n memset(stack+sptr, 0, sizeof(*stack));\n\n if (!strcmp(tagname, \"font\")) {\n\n if (tag_close) {\n\n for (i=PARAM_NUMBER-1; i>=0; i--)\n\n if (stack[sptr-1].param[i][0])\n\n for (j=sptr-2; j>=0; j--)\n\n if (stack[j].param[i][0]) {\n\n av_bprintf(dst, \"%s\", stack[j].param[i]);\n\n break;\n\n }\n\n } else {\n\n while (param) {\n\n if (!strncmp(param, \"size=\", 5)) {\n\n unsigned font_size;\n\n param += 5 + (param[5] == '\"');\n\n if (sscanf(param, \"%u\", &font_size) == 1) {\n\n snprintf(stack[sptr].param[PARAM_SIZE],\n\n sizeof(stack[0].param[PARAM_SIZE]),\n\n \"{\\\\fs%u}\", font_size);\n\n }\n\n } else if (!strncmp(param, \"color=\", 6)) {\n\n param += 6 + (param[6] == '\"');\n\n snprintf(stack[sptr].param[PARAM_COLOR],\n\n sizeof(stack[0].param[PARAM_COLOR]),\n\n \"{\\\\c&H%X&}\",\n\n html_color_parse(log_ctx, param));\n\n } else if (!strncmp(param, \"face=\", 5)) {\n\n param += 5 + (param[5] == '\"');\n\n len = strcspn(param,\n\n param[-1] == '\"' ? \"\\\"\" :\" \");\n\n av_strlcpy(tmp, param,\n\n FFMIN(sizeof(tmp), len+1));\n\n param += len;\n\n snprintf(stack[sptr].param[PARAM_FACE],\n\n sizeof(stack[0].param[PARAM_FACE]),\n\n \"{\\\\fn%s}\", tmp);\n\n }\n\n if ((param = strchr(param, ' ')))\n\n param++;\n\n }\n\n for (i=0; i\", tagname);\n\n }\n\n if (tag_close) {\n\n sptr--;\n\n } else if (unknown && !strstr(in, tmp)) {\n\n in -= len + tag_close;\n\n av_bprint_chars(dst, *in, 1);\n\n } else\n\n av_strlcpy(stack[sptr++].tag, tagname,\n\n sizeof(stack[0].tag));\n\n break;\n\n }\n\n }\n\n default:\n\n av_bprint_chars(dst, *in, 1);\n\n break;\n\n }\n\n if (*in != ' ' && *in != '\\r' && *in != '\\n')\n\n line_start = 0;\n\n }\n\n\n\n while (dst->len >= 2 && !strncmp(&dst->str[dst->len - 2], \"\\\\N\", 2))\n\n dst->len -= 2;\n\n dst->str[dst->len] = 0;\n\n rstrip_spaces_buf(dst);\n\n}\n", + "output": "1", + "index": 2456 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "void mpv_decode_mb_internal(MpegEncContext *s, int16_t block[12][64],\n\n int is_mpeg12)\n\n{\n\n const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;\n\n\n\n#if FF_API_XVMC\n\nFF_DISABLE_DEPRECATION_WARNINGS\n\n if(CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration){\n\n ff_xvmc_decode_mb(s);//xvmc uses pblocks\n\n return;\n\n }\n\nFF_ENABLE_DEPRECATION_WARNINGS\n\n#endif /* FF_API_XVMC */\n\n\n\n if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {\n\n /* print DCT coefficients */\n\n int i,j;\n\n av_log(s->avctx, AV_LOG_DEBUG, \"DCT coeffs of MB at %dx%d:\\n\", s->mb_x, s->mb_y);\n\n for(i=0; i<6; i++){\n\n for(j=0; j<64; j++){\n\n av_log(s->avctx, AV_LOG_DEBUG, \"%5d\",\n\n block[i][s->idsp.idct_permutation[j]]);\n\n }\n\n av_log(s->avctx, AV_LOG_DEBUG, \"\\n\");\n\n }\n\n }\n\n\n\n s->current_picture.qscale_table[mb_xy] = s->qscale;\n\n\n\n /* update DC predictors for P macroblocks */\n\n if (!s->mb_intra) {\n\n if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {\n\n if(s->mbintra_table[mb_xy])\n\n ff_clean_intra_table_entries(s);\n\n } else {\n\n s->last_dc[0] =\n\n s->last_dc[1] =\n\n s->last_dc[2] = 128 << s->intra_dc_precision;\n\n }\n\n }\n\n else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))\n\n s->mbintra_table[mb_xy]=1;\n\n\n\n if ((s->avctx->flags & AV_CODEC_FLAG_PSNR) ||\n\n !(s->encoding && (s->intra_only || s->pict_type == AV_PICTURE_TYPE_B) &&\n\n s->avctx->mb_decision != FF_MB_DECISION_RD)) { // FIXME precalc\n\n uint8_t *dest_y, *dest_cb, *dest_cr;\n\n int dct_linesize, dct_offset;\n\n op_pixels_func (*op_pix)[4];\n\n qpel_mc_func (*op_qpix)[16];\n\n const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics\n\n const int uvlinesize = s->current_picture.f->linesize[1];\n\n const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band;\n\n const int block_size = 8;\n\n\n\n /* avoid copy if macroblock skipped in last frame too */\n\n /* skip only during decoding as we might trash the buffers during encoding a bit */\n\n if(!s->encoding){\n\n uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];\n\n\n\n if (s->mb_skipped) {\n\n s->mb_skipped= 0;\n\n assert(s->pict_type!=AV_PICTURE_TYPE_I);\n\n *mbskip_ptr = 1;\n\n } else if(!s->current_picture.reference) {\n\n *mbskip_ptr = 1;\n\n } else{\n\n *mbskip_ptr = 0; /* not skipped */\n\n }\n\n }\n\n\n\n dct_linesize = linesize << s->interlaced_dct;\n\n dct_offset = s->interlaced_dct ? linesize : linesize * block_size;\n\n\n\n if(readable){\n\n dest_y= s->dest[0];\n\n dest_cb= s->dest[1];\n\n dest_cr= s->dest[2];\n\n }else{\n\n dest_y = s->sc.b_scratchpad;\n\n dest_cb= s->sc.b_scratchpad+16*linesize;\n\n dest_cr= s->sc.b_scratchpad+32*linesize;\n\n }\n\n\n\n if (!s->mb_intra) {\n\n /* motion handling */\n\n /* decoding or more than one mb_type (MC was already done otherwise) */\n\n if(!s->encoding){\n\n\n\n if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {\n\n if (s->mv_dir & MV_DIR_FORWARD) {\n\n ff_thread_await_progress(&s->last_picture_ptr->tf,\n\n lowest_referenced_row(s, 0),\n\n 0);\n\n }\n\n if (s->mv_dir & MV_DIR_BACKWARD) {\n\n ff_thread_await_progress(&s->next_picture_ptr->tf,\n\n lowest_referenced_row(s, 1),\n\n 0);\n\n }\n\n }\n\n\n\n op_qpix= s->me.qpel_put;\n\n if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){\n\n op_pix = s->hdsp.put_pixels_tab;\n\n }else{\n\n op_pix = s->hdsp.put_no_rnd_pixels_tab;\n\n }\n\n if (s->mv_dir & MV_DIR_FORWARD) {\n\n ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix, op_qpix);\n\n op_pix = s->hdsp.avg_pixels_tab;\n\n op_qpix= s->me.qpel_avg;\n\n }\n\n if (s->mv_dir & MV_DIR_BACKWARD) {\n\n ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix, op_qpix);\n\n }\n\n }\n\n\n\n /* skip dequant / idct if we are really late ;) */\n\n if(s->avctx->skip_idct){\n\n if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)\n\n ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)\n\n || s->avctx->skip_idct >= AVDISCARD_ALL)\n\n goto skip_idct;\n\n }\n\n\n\n /* add dct residue */\n\n if(s->encoding || !( s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO\n\n || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){\n\n add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);\n\n add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);\n\n add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);\n\n add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);\n\n\n\n if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {\n\n if (s->chroma_y_shift){\n\n add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);\n\n add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);\n\n }else{\n\n dct_linesize >>= 1;\n\n dct_offset >>=1;\n\n add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);\n\n add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);\n\n add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);\n\n add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);\n\n }\n\n }\n\n } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){\n\n add_dct(s, block[0], 0, dest_y , dct_linesize);\n\n add_dct(s, block[1], 1, dest_y + block_size, dct_linesize);\n\n add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);\n\n add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);\n\n\n\n if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {\n\n if(s->chroma_y_shift){//Chroma420\n\n add_dct(s, block[4], 4, dest_cb, uvlinesize);\n\n add_dct(s, block[5], 5, dest_cr, uvlinesize);\n\n }else{\n\n //chroma422\n\n dct_linesize = uvlinesize << s->interlaced_dct;\n\n dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize * 8;\n\n\n\n add_dct(s, block[4], 4, dest_cb, dct_linesize);\n\n add_dct(s, block[5], 5, dest_cr, dct_linesize);\n\n add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);\n\n add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);\n\n if(!s->chroma_x_shift){//Chroma444\n\n add_dct(s, block[8], 8, dest_cb+8, dct_linesize);\n\n add_dct(s, block[9], 9, dest_cr+8, dct_linesize);\n\n add_dct(s, block[10], 10, dest_cb+8+dct_offset, dct_linesize);\n\n add_dct(s, block[11], 11, dest_cr+8+dct_offset, dct_linesize);\n\n }\n\n }\n\n }//fi gray\n\n }\n\n else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {\n\n ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);\n\n }\n\n } else {\n\n /* dct only in intra block */\n\n if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){\n\n put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);\n\n put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);\n\n put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);\n\n put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);\n\n\n\n if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {\n\n if(s->chroma_y_shift){\n\n put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);\n\n put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);\n\n }else{\n\n dct_offset >>=1;\n\n dct_linesize >>=1;\n\n put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);\n\n put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);\n\n put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);\n\n put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);\n\n }\n\n }\n\n }else{\n\n s->idsp.idct_put(dest_y, dct_linesize, block[0]);\n\n s->idsp.idct_put(dest_y + block_size, dct_linesize, block[1]);\n\n s->idsp.idct_put(dest_y + dct_offset, dct_linesize, block[2]);\n\n s->idsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);\n\n\n\n if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {\n\n if(s->chroma_y_shift){\n\n s->idsp.idct_put(dest_cb, uvlinesize, block[4]);\n\n s->idsp.idct_put(dest_cr, uvlinesize, block[5]);\n\n }else{\n\n\n\n dct_linesize = uvlinesize << s->interlaced_dct;\n\n dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize * 8;\n\n\n\n s->idsp.idct_put(dest_cb, dct_linesize, block[4]);\n\n s->idsp.idct_put(dest_cr, dct_linesize, block[5]);\n\n s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);\n\n s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);\n\n if(!s->chroma_x_shift){//Chroma444\n\n s->idsp.idct_put(dest_cb + 8, dct_linesize, block[8]);\n\n s->idsp.idct_put(dest_cr + 8, dct_linesize, block[9]);\n\n s->idsp.idct_put(dest_cb + 8 + dct_offset, dct_linesize, block[10]);\n\n s->idsp.idct_put(dest_cr + 8 + dct_offset, dct_linesize, block[11]);\n\n }\n\n }\n\n }//gray\n\n }\n\n }\n\nskip_idct:\n\n if(!readable){\n\n s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16);\n\n s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);\n\n s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);\n\n }\n\n }\n\n}\n", + "output": "0", + "index": 129 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "void ff_h264_filter_mb_fast( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize) {\n\n MpegEncContext * const s = &h->s;\n\n int mb_xy;\n\n int mb_type, left_type, top_type;\n\n int qp, qp0, qp1, qpc, qpc0, qpc1, qp_thresh;\n\n int chroma = !(CONFIG_GRAY && (s->flags&CODEC_FLAG_GRAY));\n\n int chroma444 = CHROMA444;\n\n\n\n mb_xy = h->mb_xy;\n\n\n\n if(!h->h264dsp.h264_loop_filter_strength || h->pps.chroma_qp_diff) {\n\n ff_h264_filter_mb(h, mb_x, mb_y, img_y, img_cb, img_cr, linesize, uvlinesize);\n\n return;\n\n }\n\n assert(!FRAME_MBAFF);\n\n left_type= h->left_type[LTOP];\n\n top_type= h->top_type;\n\n\n\n mb_type = s->current_picture.mb_type[mb_xy];\n\n qp = s->current_picture.qscale_table[mb_xy];\n\n qp0 = s->current_picture.qscale_table[mb_xy-1];\n\n qp1 = s->current_picture.qscale_table[h->top_mb_xy];\n\n qpc = get_chroma_qp( h, 0, qp );\n\n qpc0 = get_chroma_qp( h, 0, qp0 );\n\n qpc1 = get_chroma_qp( h, 0, qp1 );\n\n qp0 = (qp + qp0 + 1) >> 1;\n\n qp1 = (qp + qp1 + 1) >> 1;\n\n qpc0 = (qpc + qpc0 + 1) >> 1;\n\n qpc1 = (qpc + qpc1 + 1) >> 1;\n\n qp_thresh = 15+52 - h->slice_alpha_c0_offset;\n\n if(qp <= qp_thresh && qp0 <= qp_thresh && qp1 <= qp_thresh &&\n\n qpc <= qp_thresh && qpc0 <= qp_thresh && qpc1 <= qp_thresh)\n\n return;\n\n\n\n if( IS_INTRA(mb_type) ) {\n\n int16_t bS4[4] = {4,4,4,4};\n\n int16_t bS3[4] = {3,3,3,3};\n\n int16_t *bSH = FIELD_PICTURE ? bS3 : bS4;\n\n if(left_type)\n\n filter_mb_edgev( &img_y[4*0], linesize, bS4, qp0, h);\n\n if( IS_8x8DCT(mb_type) ) {\n\n filter_mb_edgev( &img_y[4*2], linesize, bS3, qp, h);\n\n if(top_type){\n\n filter_mb_edgeh( &img_y[4*0*linesize], linesize, bSH, qp1, h);\n\n }\n\n filter_mb_edgeh( &img_y[4*2*linesize], linesize, bS3, qp, h);\n\n } else {\n\n filter_mb_edgev( &img_y[4*1], linesize, bS3, qp, h);\n\n filter_mb_edgev( &img_y[4*2], linesize, bS3, qp, h);\n\n filter_mb_edgev( &img_y[4*3], linesize, bS3, qp, h);\n\n if(top_type){\n\n filter_mb_edgeh( &img_y[4*0*linesize], linesize, bSH, qp1, h);\n\n }\n\n filter_mb_edgeh( &img_y[4*1*linesize], linesize, bS3, qp, h);\n\n filter_mb_edgeh( &img_y[4*2*linesize], linesize, bS3, qp, h);\n\n filter_mb_edgeh( &img_y[4*3*linesize], linesize, bS3, qp, h);\n\n }\n\n if(chroma){\n\n if(chroma444){\n\n if(left_type){\n\n filter_mb_edgev( &img_cb[4*0], linesize, bS4, qpc0, h);\n\n filter_mb_edgev( &img_cr[4*0], linesize, bS4, qpc0, h);\n\n }\n\n if( IS_8x8DCT(mb_type) ) {\n\n filter_mb_edgev( &img_cb[4*2], linesize, bS3, qpc, h);\n\n filter_mb_edgev( &img_cr[4*2], linesize, bS3, qpc, h);\n\n if(top_type){\n\n filter_mb_edgeh( &img_cb[4*0*linesize], linesize, bSH, qpc1, h);\n\n filter_mb_edgeh( &img_cr[4*0*linesize], linesize, bSH, qpc1, h);\n\n }\n\n filter_mb_edgeh( &img_cb[4*2*linesize], linesize, bS3, qpc, h);\n\n filter_mb_edgeh( &img_cr[4*2*linesize], linesize, bS3, qpc, h);\n\n } else {\n\n filter_mb_edgev( &img_cb[4*1], linesize, bS3, qpc, h);\n\n filter_mb_edgev( &img_cr[4*1], linesize, bS3, qpc, h);\n\n filter_mb_edgev( &img_cb[4*2], linesize, bS3, qpc, h);\n\n filter_mb_edgev( &img_cr[4*2], linesize, bS3, qpc, h);\n\n filter_mb_edgev( &img_cb[4*3], linesize, bS3, qpc, h);\n\n filter_mb_edgev( &img_cr[4*3], linesize, bS3, qpc, h);\n\n if(top_type){\n\n filter_mb_edgeh( &img_cb[4*0*linesize], linesize, bSH, qpc1, h);\n\n filter_mb_edgeh( &img_cr[4*0*linesize], linesize, bSH, qpc1, h);\n\n }\n\n filter_mb_edgeh( &img_cb[4*1*linesize], linesize, bS3, qpc, h);\n\n filter_mb_edgeh( &img_cr[4*1*linesize], linesize, bS3, qpc, h);\n\n filter_mb_edgeh( &img_cb[4*2*linesize], linesize, bS3, qpc, h);\n\n filter_mb_edgeh( &img_cr[4*2*linesize], linesize, bS3, qpc, h);\n\n filter_mb_edgeh( &img_cb[4*3*linesize], linesize, bS3, qpc, h);\n\n filter_mb_edgeh( &img_cr[4*3*linesize], linesize, bS3, qpc, h);\n\n }\n\n }else{\n\n if(left_type){\n\n filter_mb_edgecv( &img_cb[2*0], uvlinesize, bS4, qpc0, h);\n\n filter_mb_edgecv( &img_cr[2*0], uvlinesize, bS4, qpc0, h);\n\n }\n\n filter_mb_edgecv( &img_cb[2*2], uvlinesize, bS3, qpc, h);\n\n filter_mb_edgecv( &img_cr[2*2], uvlinesize, bS3, qpc, h);\n\n if(top_type){\n\n filter_mb_edgech( &img_cb[2*0*uvlinesize], uvlinesize, bSH, qpc1, h);\n\n filter_mb_edgech( &img_cr[2*0*uvlinesize], uvlinesize, bSH, qpc1, h);\n\n }\n\n filter_mb_edgech( &img_cb[2*2*uvlinesize], uvlinesize, bS3, qpc, h);\n\n filter_mb_edgech( &img_cr[2*2*uvlinesize], uvlinesize, bS3, qpc, h);\n\n }\n\n }\n\n return;\n\n } else {\n\n LOCAL_ALIGNED_8(int16_t, bS, [2], [4][4]);\n\n int edges;\n\n if( IS_8x8DCT(mb_type) && (h->cbp&7) == 7 ) {\n\n edges = 4;\n\n AV_WN64A(bS[0][0], 0x0002000200020002ULL);\n\n AV_WN64A(bS[0][2], 0x0002000200020002ULL);\n\n AV_WN64A(bS[1][0], 0x0002000200020002ULL);\n\n AV_WN64A(bS[1][2], 0x0002000200020002ULL);\n\n } else {\n\n int mask_edge1 = (3*(((5*mb_type)>>5)&1)) | (mb_type>>4); //(mb_type & (MB_TYPE_16x16 | MB_TYPE_8x16)) ? 3 : (mb_type & MB_TYPE_16x8) ? 1 : 0;\n\n int mask_edge0 = 3*((mask_edge1>>1) & ((5*left_type)>>5)&1); // (mb_type & (MB_TYPE_16x16 | MB_TYPE_8x16)) && (h->left_type[LTOP] & (MB_TYPE_16x16 | MB_TYPE_8x16)) ? 3 : 0;\n\n int step = 1+(mb_type>>24); //IS_8x8DCT(mb_type) ? 2 : 1;\n\n edges = 4 - 3*((mb_type>>3) & !(h->cbp & 15)); //(mb_type & MB_TYPE_16x16) && !(h->cbp & 15) ? 1 : 4;\n\n h->h264dsp.h264_loop_filter_strength( bS, h->non_zero_count_cache, h->ref_cache, h->mv_cache,\n\n h->list_count==2, edges, step, mask_edge0, mask_edge1, FIELD_PICTURE);\n\n }\n\n if( IS_INTRA(left_type) )\n\n AV_WN64A(bS[0][0], 0x0004000400040004ULL);\n\n if( IS_INTRA(top_type) )\n\n AV_WN64A(bS[1][0], FIELD_PICTURE ? 0x0003000300030003ULL : 0x0004000400040004ULL);\n\n\n\n#define FILTER(hv,dir,edge)\\\n\n if(AV_RN64A(bS[dir][edge])) { \\\n\n filter_mb_edge##hv( &img_y[4*edge*(dir?linesize:1)], linesize, bS[dir][edge], edge ? qp : qp##dir, h );\\\n\n if(chroma){\\\n\n if(chroma444){\\\n\n filter_mb_edge##hv( &img_cb[4*edge*(dir?linesize:1)], linesize, bS[dir][edge], edge ? qpc : qpc##dir, h );\\\n\n filter_mb_edge##hv( &img_cr[4*edge*(dir?linesize:1)], linesize, bS[dir][edge], edge ? qpc : qpc##dir, h );\\\n\n } else if(!(edge&1)) {\\\n\n filter_mb_edgec##hv( &img_cb[2*edge*(dir?uvlinesize:1)], uvlinesize, bS[dir][edge], edge ? qpc : qpc##dir, h );\\\n\n filter_mb_edgec##hv( &img_cr[2*edge*(dir?uvlinesize:1)], uvlinesize, bS[dir][edge], edge ? qpc : qpc##dir, h );\\\n\n }\\\n\n }\\\n\n }\n\n if(left_type)\n\n FILTER(v,0,0);\n\n if( edges == 1 ) {\n\n if(top_type)\n\n FILTER(h,1,0);\n\n } else if( IS_8x8DCT(mb_type) ) {\n\n FILTER(v,0,2);\n\n if(top_type)\n\n FILTER(h,1,0);\n\n FILTER(h,1,2);\n\n } else {\n\n FILTER(v,0,1);\n\n FILTER(v,0,2);\n\n FILTER(v,0,3);\n\n if(top_type)\n\n FILTER(h,1,0);\n\n FILTER(h,1,1);\n\n FILTER(h,1,2);\n\n FILTER(h,1,3);\n\n }\n\n#undef FILTER\n\n }\n\n}\n", + "output": "0", + "index": 15042 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void init_proc_e500 (CPUPPCState *env, int version)\n\n{\n\n uint32_t tlbncfg[2];\n\n uint64_t ivor_mask = 0x0000000F0000FFFFULL;\n\n#if !defined(CONFIG_USER_ONLY)\n\n int i;\n\n#endif\n\n\n\n /* Time base */\n\n gen_tbl(env);\n\n /*\n\n * XXX The e500 doesn't implement IVOR7 and IVOR9, but doesn't\n\n * complain when accessing them.\n\n * gen_spr_BookE(env, 0x0000000F0000FD7FULL);\n\n */\n\n if (version == fsl_e500mc) {\n\n ivor_mask = 0x000003FE0000FFFFULL;\n\n }\n\n gen_spr_BookE(env, ivor_mask);\n\n /* Processor identification */\n\n spr_register(env, SPR_BOOKE_PIR, \"PIR\",\n\n SPR_NOACCESS, SPR_NOACCESS,\n\n &spr_read_generic, &spr_write_pir,\n\n 0x00000000);\n\n /* XXX : not implemented */\n\n spr_register(env, SPR_BOOKE_SPEFSCR, \"SPEFSCR\",\n\n &spr_read_spefscr, &spr_write_spefscr,\n\n &spr_read_spefscr, &spr_write_spefscr,\n\n 0x00000000);\n\n /* Memory management */\n\n#if !defined(CONFIG_USER_ONLY)\n\n env->nb_pids = 3;\n\n env->nb_ways = 2;\n\n env->id_tlbs = 0;\n\n switch (version) {\n\n case fsl_e500v1:\n\n /* e500v1 */\n\n tlbncfg[0] = gen_tlbncfg(2, 1, 1, 0, 256);\n\n tlbncfg[1] = gen_tlbncfg(16, 1, 9, TLBnCFG_AVAIL | TLBnCFG_IPROT, 16);\n\n env->dcache_line_size = 32;\n\n env->icache_line_size = 32;\n\n break;\n\n case fsl_e500v2:\n\n /* e500v2 */\n\n tlbncfg[0] = gen_tlbncfg(4, 1, 1, 0, 512);\n\n tlbncfg[1] = gen_tlbncfg(16, 1, 12, TLBnCFG_AVAIL | TLBnCFG_IPROT, 16);\n\n env->dcache_line_size = 32;\n\n env->icache_line_size = 32;\n\n break;\n\n case fsl_e500mc:\n\n /* e500mc */\n\n tlbncfg[0] = gen_tlbncfg(4, 1, 1, 0, 512);\n\n tlbncfg[1] = gen_tlbncfg(64, 1, 12, TLBnCFG_AVAIL | TLBnCFG_IPROT, 64);\n\n env->dcache_line_size = 64;\n\n env->icache_line_size = 64;\n\n break;\n\n default:\n\n cpu_abort(env, \"Unknown CPU: \" TARGET_FMT_lx \"\\n\", env->spr[SPR_PVR]);\n\n }\n\n#endif\n\n gen_spr_BookE206(env, 0x000000DF, tlbncfg);\n\n /* XXX : not implemented */\n\n spr_register(env, SPR_HID0, \"HID0\",\n\n SPR_NOACCESS, SPR_NOACCESS,\n\n &spr_read_generic, &spr_write_generic,\n\n 0x00000000);\n\n /* XXX : not implemented */\n\n spr_register(env, SPR_HID1, \"HID1\",\n\n SPR_NOACCESS, SPR_NOACCESS,\n\n &spr_read_generic, &spr_write_generic,\n\n 0x00000000);\n\n /* XXX : not implemented */\n\n spr_register(env, SPR_Exxx_BBEAR, \"BBEAR\",\n\n SPR_NOACCESS, SPR_NOACCESS,\n\n &spr_read_generic, &spr_write_generic,\n\n 0x00000000);\n\n /* XXX : not implemented */\n\n spr_register(env, SPR_Exxx_BBTAR, \"BBTAR\",\n\n SPR_NOACCESS, SPR_NOACCESS,\n\n &spr_read_generic, &spr_write_generic,\n\n 0x00000000);\n\n /* XXX : not implemented */\n\n spr_register(env, SPR_Exxx_MCAR, \"MCAR\",\n\n SPR_NOACCESS, SPR_NOACCESS,\n\n &spr_read_generic, &spr_write_generic,\n\n 0x00000000);\n\n /* XXX : not implemented */\n\n spr_register(env, SPR_BOOKE_MCSR, \"MCSR\",\n\n SPR_NOACCESS, SPR_NOACCESS,\n\n &spr_read_generic, &spr_write_generic,\n\n 0x00000000);\n\n /* XXX : not implemented */\n\n spr_register(env, SPR_Exxx_NPIDR, \"NPIDR\",\n\n SPR_NOACCESS, SPR_NOACCESS,\n\n &spr_read_generic, &spr_write_generic,\n\n 0x00000000);\n\n /* XXX : not implemented */\n\n spr_register(env, SPR_Exxx_BUCSR, \"BUCSR\",\n\n SPR_NOACCESS, SPR_NOACCESS,\n\n &spr_read_generic, &spr_write_generic,\n\n 0x00000000);\n\n /* XXX : not implemented */\n\n spr_register(env, SPR_Exxx_L1CFG0, \"L1CFG0\",\n\n SPR_NOACCESS, SPR_NOACCESS,\n\n &spr_read_generic, &spr_write_generic,\n\n 0x00000000);\n\n /* XXX : not implemented */\n\n spr_register(env, SPR_Exxx_L1CSR0, \"L1CSR0\",\n\n SPR_NOACCESS, SPR_NOACCESS,\n\n &spr_read_generic, &spr_write_e500_l1csr0,\n\n 0x00000000);\n\n /* XXX : not implemented */\n\n spr_register(env, SPR_Exxx_L1CSR1, \"L1CSR1\",\n\n SPR_NOACCESS, SPR_NOACCESS,\n\n &spr_read_generic, &spr_write_generic,\n\n 0x00000000);\n\n spr_register(env, SPR_BOOKE_MCSRR0, \"MCSRR0\",\n\n SPR_NOACCESS, SPR_NOACCESS,\n\n &spr_read_generic, &spr_write_generic,\n\n 0x00000000);\n\n spr_register(env, SPR_BOOKE_MCSRR1, \"MCSRR1\",\n\n SPR_NOACCESS, SPR_NOACCESS,\n\n &spr_read_generic, &spr_write_generic,\n\n 0x00000000);\n\n spr_register(env, SPR_MMUCSR0, \"MMUCSR0\",\n\n SPR_NOACCESS, SPR_NOACCESS,\n\n &spr_read_generic, &spr_write_booke206_mmucsr0,\n\n 0x00000000);\n\n\n\n#if !defined(CONFIG_USER_ONLY)\n\n env->nb_tlb = 0;\n\n env->tlb_type = TLB_MAS;\n\n for (i = 0; i < BOOKE206_MAX_TLBN; i++) {\n\n env->nb_tlb += booke206_tlb_size(env, i);\n\n }\n\n#endif\n\n\n\n init_excp_e200(env);\n\n /* Allocate hardware IRQ controller */\n\n ppce500_irq_init(env);\n\n}\n", + "output": "1", + "index": 18558 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int elf_core_dump(int signr, const CPUArchState *env)\n\n{\n\n const CPUState *cpu = ENV_GET_CPU((CPUArchState *)env);\n\n const TaskState *ts = (const TaskState *)cpu->opaque;\n\n struct vm_area_struct *vma = NULL;\n\n char corefile[PATH_MAX];\n\n struct elf_note_info info;\n\n struct elfhdr elf;\n\n struct elf_phdr phdr;\n\n struct rlimit dumpsize;\n\n struct mm_struct *mm = NULL;\n\n off_t offset = 0, data_offset = 0;\n\n int segs = 0;\n\n int fd = -1;\n\n\n\n init_note_info(&info);\n\n\n\n errno = 0;\n\n getrlimit(RLIMIT_CORE, &dumpsize);\n\n if (dumpsize.rlim_cur == 0)\n\n return 0;\n\n\n\n if (core_dump_filename(ts, corefile, sizeof (corefile)) < 0)\n\n return (-errno);\n\n\n\n if ((fd = open(corefile, O_WRONLY | O_CREAT,\n\n S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH)) < 0)\n\n return (-errno);\n\n\n\n /*\n\n * Walk through target process memory mappings and\n\n * set up structure containing this information. After\n\n * this point vma_xxx functions can be used.\n\n */\n\n if ((mm = vma_init()) == NULL)\n\n goto out;\n\n\n\n walk_memory_regions(mm, vma_walker);\n\n segs = vma_get_mapping_count(mm);\n\n\n\n /*\n\n * Construct valid coredump ELF header. We also\n\n * add one more segment for notes.\n\n */\n\n fill_elf_header(&elf, segs + 1, ELF_MACHINE, 0);\n\n if (dump_write(fd, &elf, sizeof (elf)) != 0)\n\n goto out;\n\n\n\n /* fill in the in-memory version of notes */\n\n if (fill_note_info(&info, signr, env) < 0)\n\n goto out;\n\n\n\n offset += sizeof (elf); /* elf header */\n\n offset += (segs + 1) * sizeof (struct elf_phdr); /* program headers */\n\n\n\n /* write out notes program header */\n\n fill_elf_note_phdr(&phdr, info.notes_size, offset);\n\n\n\n offset += info.notes_size;\n\n if (dump_write(fd, &phdr, sizeof (phdr)) != 0)\n\n goto out;\n\n\n\n /*\n\n * ELF specification wants data to start at page boundary so\n\n * we align it here.\n\n */\n\n data_offset = offset = roundup(offset, ELF_EXEC_PAGESIZE);\n\n\n\n /*\n\n * Write program headers for memory regions mapped in\n\n * the target process.\n\n */\n\n for (vma = vma_first(mm); vma != NULL; vma = vma_next(vma)) {\n\n (void) memset(&phdr, 0, sizeof (phdr));\n\n\n\n phdr.p_type = PT_LOAD;\n\n phdr.p_offset = offset;\n\n phdr.p_vaddr = vma->vma_start;\n\n phdr.p_paddr = 0;\n\n phdr.p_filesz = vma_dump_size(vma);\n\n offset += phdr.p_filesz;\n\n phdr.p_memsz = vma->vma_end - vma->vma_start;\n\n phdr.p_flags = vma->vma_flags & PROT_READ ? PF_R : 0;\n\n if (vma->vma_flags & PROT_WRITE)\n\n phdr.p_flags |= PF_W;\n\n if (vma->vma_flags & PROT_EXEC)\n\n phdr.p_flags |= PF_X;\n\n phdr.p_align = ELF_EXEC_PAGESIZE;\n\n\n\n bswap_phdr(&phdr, 1);\n\n dump_write(fd, &phdr, sizeof (phdr));\n\n }\n\n\n\n /*\n\n * Next we write notes just after program headers. No\n\n * alignment needed here.\n\n */\n\n if (write_note_info(&info, fd) < 0)\n\n goto out;\n\n\n\n /* align data to page boundary */\n\n if (lseek(fd, data_offset, SEEK_SET) != data_offset)\n\n goto out;\n\n\n\n /*\n\n * Finally we can dump process memory into corefile as well.\n\n */\n\n for (vma = vma_first(mm); vma != NULL; vma = vma_next(vma)) {\n\n abi_ulong addr;\n\n abi_ulong end;\n\n\n\n end = vma->vma_start + vma_dump_size(vma);\n\n\n\n for (addr = vma->vma_start; addr < end;\n\n addr += TARGET_PAGE_SIZE) {\n\n char page[TARGET_PAGE_SIZE];\n\n int error;\n\n\n\n /*\n\n * Read in page from target process memory and\n\n * write it to coredump file.\n\n */\n\n error = copy_from_user(page, addr, sizeof (page));\n\n if (error != 0) {\n\n (void) fprintf(stderr, \"unable to dump \" TARGET_ABI_FMT_lx \"\\n\",\n\n addr);\n\n errno = -error;\n\n goto out;\n\n }\n\n if (dump_write(fd, page, TARGET_PAGE_SIZE) < 0)\n\n goto out;\n\n }\n\n }\n\n\n\n out:\n\n free_note_info(&info);\n\n if (mm != NULL)\n\n vma_delete(mm);\n\n (void) close(fd);\n\n\n\n if (errno != 0)\n\n return (-errno);\n\n return (0);\n\n}\n", + "output": "1", + "index": 21813 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void gen_compute_compact_branch(DisasContext *ctx, uint32_t opc,\n\n int rs, int rt, int32_t offset)\n\n{\n\n int bcond_compute = 0;\n\n TCGv t0 = tcg_temp_new();\n\n TCGv t1 = tcg_temp_new();\n\n\n\n if (ctx->hflags & MIPS_HFLAG_BMASK) {\n\n#ifdef MIPS_DEBUG_DISAS\n\n LOG_DISAS(\"Branch in delay / forbidden slot at PC 0x\" TARGET_FMT_lx\n\n \"\\n\", ctx->pc);\n\n#endif\n\n generate_exception(ctx, EXCP_RI);\n\n goto out;\n\n }\n\n\n\n /* Load needed operands and calculate btarget */\n\n switch (opc) {\n\n /* compact branch */\n\n case OPC_BOVC: /* OPC_BEQZALC, OPC_BEQC */\n\n case OPC_BNVC: /* OPC_BNEZALC, OPC_BNEC */\n\n gen_load_gpr(t0, rs);\n\n gen_load_gpr(t1, rt);\n\n bcond_compute = 1;\n\n ctx->btarget = addr_add(ctx, ctx->pc + 4, offset);\n\n if (rs <= rt && rs == 0) {\n\n /* OPC_BEQZALC, OPC_BNEZALC */\n\n tcg_gen_movi_tl(cpu_gpr[31], ctx->pc + 4);\n\n }\n\n break;\n\n case OPC_BLEZC: /* OPC_BGEZC, OPC_BGEC */\n\n case OPC_BGTZC: /* OPC_BLTZC, OPC_BLTC */\n\n gen_load_gpr(t0, rs);\n\n gen_load_gpr(t1, rt);\n\n bcond_compute = 1;\n\n ctx->btarget = addr_add(ctx, ctx->pc + 4, offset);\n\n break;\n\n case OPC_BLEZALC: /* OPC_BGEZALC, OPC_BGEUC */\n\n case OPC_BGTZALC: /* OPC_BLTZALC, OPC_BLTUC */\n\n if (rs == 0 || rs == rt) {\n\n /* OPC_BLEZALC, OPC_BGEZALC */\n\n /* OPC_BGTZALC, OPC_BLTZALC */\n\n tcg_gen_movi_tl(cpu_gpr[31], ctx->pc + 4);\n\n }\n\n gen_load_gpr(t0, rs);\n\n gen_load_gpr(t1, rt);\n\n bcond_compute = 1;\n\n ctx->btarget = addr_add(ctx, ctx->pc + 4, offset);\n\n break;\n\n case OPC_BC:\n\n case OPC_BALC:\n\n ctx->btarget = addr_add(ctx, ctx->pc + 4, offset);\n\n break;\n\n case OPC_BEQZC:\n\n case OPC_BNEZC:\n\n if (rs != 0) {\n\n /* OPC_BEQZC, OPC_BNEZC */\n\n gen_load_gpr(t0, rs);\n\n bcond_compute = 1;\n\n ctx->btarget = addr_add(ctx, ctx->pc + 4, offset);\n\n } else {\n\n /* OPC_JIC, OPC_JIALC */\n\n TCGv tbase = tcg_temp_new();\n\n TCGv toffset = tcg_temp_new();\n\n\n\n gen_load_gpr(tbase, rt);\n\n tcg_gen_movi_tl(toffset, offset);\n\n gen_op_addr_add(ctx, btarget, tbase, toffset);\n\n tcg_temp_free(tbase);\n\n tcg_temp_free(toffset);\n\n }\n\n break;\n\n default:\n\n MIPS_INVAL(\"Compact branch/jump\");\n\n generate_exception(ctx, EXCP_RI);\n\n goto out;\n\n }\n\n\n\n if (bcond_compute == 0) {\n\n /* Uncoditional compact branch */\n\n switch (opc) {\n\n case OPC_JIALC:\n\n tcg_gen_movi_tl(cpu_gpr[31], ctx->pc + 4);\n\n /* Fallthrough */\n\n case OPC_JIC:\n\n ctx->hflags |= MIPS_HFLAG_BR;\n\n break;\n\n case OPC_BALC:\n\n tcg_gen_movi_tl(cpu_gpr[31], ctx->pc + 4);\n\n /* Fallthrough */\n\n case OPC_BC:\n\n ctx->hflags |= MIPS_HFLAG_B;\n\n break;\n\n default:\n\n MIPS_INVAL(\"Compact branch/jump\");\n\n generate_exception(ctx, EXCP_RI);\n\n goto out;\n\n }\n\n\n\n /* Generating branch here as compact branches don't have delay slot */\n\n gen_branch(ctx, 4);\n\n } else {\n\n /* Conditional compact branch */\n\n int fs = gen_new_label();\n\n save_cpu_state(ctx, 0);\n\n\n\n switch (opc) {\n\n case OPC_BLEZALC: /* OPC_BGEZALC, OPC_BGEUC */\n\n if (rs == 0 && rt != 0) {\n\n /* OPC_BLEZALC */\n\n tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_LE), t1, 0, fs);\n\n } else if (rs != 0 && rt != 0 && rs == rt) {\n\n /* OPC_BGEZALC */\n\n tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_GE), t1, 0, fs);\n\n } else {\n\n /* OPC_BGEUC */\n\n tcg_gen_brcond_tl(tcg_invert_cond(TCG_COND_GEU), t0, t1, fs);\n\n }\n\n break;\n\n case OPC_BGTZALC: /* OPC_BLTZALC, OPC_BLTUC */\n\n if (rs == 0 && rt != 0) {\n\n /* OPC_BGTZALC */\n\n tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_GT), t1, 0, fs);\n\n } else if (rs != 0 && rt != 0 && rs == rt) {\n\n /* OPC_BLTZALC */\n\n tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_LT), t1, 0, fs);\n\n } else {\n\n /* OPC_BLTUC */\n\n tcg_gen_brcond_tl(tcg_invert_cond(TCG_COND_LTU), t0, t1, fs);\n\n }\n\n break;\n\n case OPC_BLEZC: /* OPC_BGEZC, OPC_BGEC */\n\n if (rs == 0 && rt != 0) {\n\n /* OPC_BLEZC */\n\n tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_LE), t1, 0, fs);\n\n } else if (rs != 0 && rt != 0 && rs == rt) {\n\n /* OPC_BGEZC */\n\n tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_GE), t1, 0, fs);\n\n } else {\n\n /* OPC_BGEC */\n\n tcg_gen_brcond_tl(tcg_invert_cond(TCG_COND_GE), t0, t1, fs);\n\n }\n\n break;\n\n case OPC_BGTZC: /* OPC_BLTZC, OPC_BLTC */\n\n if (rs == 0 && rt != 0) {\n\n /* OPC_BGTZC */\n\n tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_GT), t1, 0, fs);\n\n } else if (rs != 0 && rt != 0 && rs == rt) {\n\n /* OPC_BLTZC */\n\n tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_LT), t1, 0, fs);\n\n } else {\n\n /* OPC_BLTC */\n\n tcg_gen_brcond_tl(tcg_invert_cond(TCG_COND_LT), t0, t1, fs);\n\n }\n\n break;\n\n case OPC_BOVC: /* OPC_BEQZALC, OPC_BEQC */\n\n case OPC_BNVC: /* OPC_BNEZALC, OPC_BNEC */\n\n if (rs >= rt) {\n\n /* OPC_BOVC, OPC_BNVC */\n\n TCGv t2 = tcg_temp_new();\n\n TCGv t3 = tcg_temp_new();\n\n TCGv t4 = tcg_temp_new();\n\n TCGv input_overflow = tcg_temp_new();\n\n\n\n gen_load_gpr(t0, rs);\n\n gen_load_gpr(t1, rt);\n\n tcg_gen_ext32s_tl(t2, t0);\n\n tcg_gen_setcond_tl(TCG_COND_NE, input_overflow, t2, t0);\n\n tcg_gen_ext32s_tl(t3, t1);\n\n tcg_gen_setcond_tl(TCG_COND_NE, t4, t3, t1);\n\n tcg_gen_or_tl(input_overflow, input_overflow, t4);\n\n\n\n tcg_gen_add_tl(t4, t2, t3);\n\n tcg_gen_ext32s_tl(t4, t4);\n\n tcg_gen_xor_tl(t2, t2, t3);\n\n tcg_gen_xor_tl(t3, t4, t3);\n\n tcg_gen_andc_tl(t2, t3, t2);\n\n tcg_gen_setcondi_tl(TCG_COND_LT, t4, t2, 0);\n\n tcg_gen_or_tl(t4, t4, input_overflow);\n\n if (opc == OPC_BOVC) {\n\n /* OPC_BOVC */\n\n tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_NE), t4, 0, fs);\n\n } else {\n\n /* OPC_BNVC */\n\n tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_EQ), t4, 0, fs);\n\n }\n\n tcg_temp_free(input_overflow);\n\n tcg_temp_free(t4);\n\n tcg_temp_free(t3);\n\n tcg_temp_free(t2);\n\n } else if (rs < rt && rs == 0) {\n\n /* OPC_BEQZALC, OPC_BNEZALC */\n\n if (opc == OPC_BEQZALC) {\n\n /* OPC_BEQZALC */\n\n tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_EQ), t1, 0, fs);\n\n } else {\n\n /* OPC_BNEZALC */\n\n tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_NE), t1, 0, fs);\n\n }\n\n } else {\n\n /* OPC_BEQC, OPC_BNEC */\n\n if (opc == OPC_BEQC) {\n\n /* OPC_BEQC */\n\n tcg_gen_brcond_tl(tcg_invert_cond(TCG_COND_EQ), t0, t1, fs);\n\n } else {\n\n /* OPC_BNEC */\n\n tcg_gen_brcond_tl(tcg_invert_cond(TCG_COND_NE), t0, t1, fs);\n\n }\n\n }\n\n break;\n\n case OPC_BEQZC:\n\n tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_EQ), t0, 0, fs);\n\n break;\n\n case OPC_BNEZC:\n\n tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_NE), t0, 0, fs);\n\n break;\n\n default:\n\n MIPS_INVAL(\"Compact conditional branch/jump\");\n\n generate_exception(ctx, EXCP_RI);\n\n goto out;\n\n }\n\n\n\n /* Generating branch here as compact branches don't have delay slot */\n\n gen_goto_tb(ctx, 1, ctx->btarget);\n\n gen_set_label(fs);\n\n\n\n ctx->hflags |= MIPS_HFLAG_FBNSLOT;\n\n MIPS_DEBUG(\"Compact conditional branch\");\n\n }\n\n\n\nout:\n\n tcg_temp_free(t0);\n\n tcg_temp_free(t1);\n\n}\n", + "output": "0", + "index": 18251 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void RENAME(postProcess)(const uint8_t src[], int srcStride, uint8_t dst[], int dstStride, int width, int height,\n\n const QP_STORE_T QPs[], int QPStride, int isColor, PPContext *c2)\n\n{\n\n DECLARE_ALIGNED(8, PPContext, c)= *c2; //copy to stack for faster access\n\n int x,y;\n\n#ifdef TEMPLATE_PP_TIME_MODE\n\n const int mode= TEMPLATE_PP_TIME_MODE;\n\n#else\n\n const int mode= isColor ? c.ppMode.chromMode : c.ppMode.lumMode;\n\n#endif\n\n int black=0, white=255; // blackest black and whitest white in the picture\n\n int QPCorrecture= 256*256;\n\n\n\n int copyAhead;\n\n#if TEMPLATE_PP_MMX\n\n int i;\n\n#endif\n\n\n\n const int qpHShift= isColor ? 4-c.hChromaSubSample : 4;\n\n const int qpVShift= isColor ? 4-c.vChromaSubSample : 4;\n\n\n\n //FIXME remove\n\n uint64_t * const yHistogram= c.yHistogram;\n\n uint8_t * const tempSrc= srcStride > 0 ? c.tempSrc : c.tempSrc - 23*srcStride;\n\n uint8_t * const tempDst= (dstStride > 0 ? c.tempDst : c.tempDst - 23*dstStride) + 32;\n\n //const int mbWidth= isColor ? (width+7)>>3 : (width+15)>>4;\n\n\n\n if (mode & VISUALIZE){\n\n if(!(mode & (V_A_DEBLOCK | H_A_DEBLOCK)) || TEMPLATE_PP_MMX) {\n\n av_log(c2, AV_LOG_WARNING, \"Visualization is currently only supported with the accurate deblock filter without SIMD\\n\");\n\n }\n\n }\n\n\n\n#if TEMPLATE_PP_MMX\n\n for(i=0; i<57; i++){\n\n int offset= ((i*c.ppMode.baseDcDiff)>>8) + 1;\n\n int threshold= offset*2 + 1;\n\n c.mmxDcOffset[i]= 0x7F - offset;\n\n c.mmxDcThreshold[i]= 0x7F - threshold;\n\n c.mmxDcOffset[i]*= 0x0101010101010101LL;\n\n c.mmxDcThreshold[i]*= 0x0101010101010101LL;\n\n }\n\n#endif\n\n\n\n if(mode & CUBIC_IPOL_DEINT_FILTER) copyAhead=16;\n\n else if( (mode & LINEAR_BLEND_DEINT_FILTER)\n\n || (mode & FFMPEG_DEINT_FILTER)\n\n || (mode & LOWPASS5_DEINT_FILTER)) copyAhead=14;\n\n else if( (mode & V_DEBLOCK)\n\n || (mode & LINEAR_IPOL_DEINT_FILTER)\n\n || (mode & MEDIAN_DEINT_FILTER)\n\n || (mode & V_A_DEBLOCK)) copyAhead=13;\n\n else if(mode & V_X1_FILTER) copyAhead=11;\n\n// else if(mode & V_RK1_FILTER) copyAhead=10;\n\n else if(mode & DERING) copyAhead=9;\n\n else copyAhead=8;\n\n\n\n copyAhead-= 8;\n\n\n\n if(!isColor){\n\n uint64_t sum= 0;\n\n int i;\n\n uint64_t maxClipped;\n\n uint64_t clipped;\n\n double scale;\n\n\n\n c.frameNum++;\n\n // first frame is fscked so we ignore it\n\n if(c.frameNum == 1) yHistogram[0]= width*(uint64_t)height/64*15/256;\n\n\n\n for(i=0; i<256; i++){\n\n sum+= yHistogram[i];\n\n }\n\n\n\n /* We always get a completely black picture first. */\n\n maxClipped= (uint64_t)(sum * c.ppMode.maxClippedThreshold);\n\n\n\n clipped= sum;\n\n for(black=255; black>0; black--){\n\n if(clipped < maxClipped) break;\n\n clipped-= yHistogram[black];\n\n }\n\n\n\n clipped= sum;\n\n for(white=0; white<256; white++){\n\n if(clipped < maxClipped) break;\n\n clipped-= yHistogram[white];\n\n }\n\n\n\n scale= (double)(c.ppMode.maxAllowedY - c.ppMode.minAllowedY) / (double)(white-black);\n\n\n\n#if TEMPLATE_PP_MMXEXT\n\n c.packedYScale= (uint16_t)(scale*256.0 + 0.5);\n\n c.packedYOffset= (((black*c.packedYScale)>>8) - c.ppMode.minAllowedY) & 0xFFFF;\n\n#else\n\n c.packedYScale= (uint16_t)(scale*1024.0 + 0.5);\n\n c.packedYOffset= (black - c.ppMode.minAllowedY) & 0xFFFF;\n\n#endif\n\n\n\n c.packedYOffset|= c.packedYOffset<<32;\n\n c.packedYOffset|= c.packedYOffset<<16;\n\n\n\n c.packedYScale|= c.packedYScale<<32;\n\n c.packedYScale|= c.packedYScale<<16;\n\n\n\n if(mode & LEVEL_FIX) QPCorrecture= (int)(scale*256*256 + 0.5);\n\n else QPCorrecture= 256*256;\n\n }else{\n\n c.packedYScale= 0x0100010001000100LL;\n\n c.packedYOffset= 0;\n\n QPCorrecture= 256*256;\n\n }\n\n\n\n /* copy & deinterlace first row of blocks */\n\n y=-BLOCK_SIZE;\n\n {\n\n const uint8_t *srcBlock= &(src[y*srcStride]);\n\n uint8_t *dstBlock= tempDst + dstStride;\n\n\n\n // From this point on it is guaranteed that we can read and write 16 lines downward\n\n // finish 1 block before the next otherwise we might have a problem\n\n // with the L1 Cache of the P4 ... or only a few blocks at a time or something\n\n for(x=0; x>2)&6) + 5)*srcStride + 32);\n\n prefetchnta(srcBlock + (((x>>2)&6) + 6)*srcStride + 32);\n\n prefetcht0(dstBlock + (((x>>2)&6) + 5)*dstStride + 32);\n\n prefetcht0(dstBlock + (((x>>2)&6) + 6)*dstStride + 32);\n\n*/\n\n\n\n __asm__(\n\n \"mov %4, %%\"REG_a\" \\n\\t\"\n\n \"shr $2, %%\"REG_a\" \\n\\t\"\n\n \"and $6, %%\"REG_a\" \\n\\t\"\n\n \"add %5, %%\"REG_a\" \\n\\t\"\n\n \"mov %%\"REG_a\", %%\"REG_d\" \\n\\t\"\n\n \"imul %1, %%\"REG_a\" \\n\\t\"\n\n \"imul %3, %%\"REG_d\" \\n\\t\"\n\n \"prefetchnta 32(%%\"REG_a\", %0) \\n\\t\"\n\n \"prefetcht0 32(%%\"REG_d\", %2) \\n\\t\"\n\n \"add %1, %%\"REG_a\" \\n\\t\"\n\n \"add %3, %%\"REG_d\" \\n\\t\"\n\n \"prefetchnta 32(%%\"REG_a\", %0) \\n\\t\"\n\n \"prefetcht0 32(%%\"REG_d\", %2) \\n\\t\"\n\n :: \"r\" (srcBlock), \"r\" ((x86_reg)srcStride), \"r\" (dstBlock), \"r\" ((x86_reg)dstStride),\n\n \"g\" ((x86_reg)x), \"g\" ((x86_reg)copyAhead)\n\n : \"%\"REG_a, \"%\"REG_d\n\n );\n\n\n\n#elif TEMPLATE_PP_3DNOW\n\n//FIXME check if this is faster on an 3dnow chip or if it is faster without the prefetch or ...\n\n/* prefetch(srcBlock + (((x>>3)&3) + 5)*srcStride + 32);\n\n prefetch(srcBlock + (((x>>3)&3) + 9)*srcStride + 32);\n\n prefetchw(dstBlock + (((x>>3)&3) + 5)*dstStride + 32);\n\n prefetchw(dstBlock + (((x>>3)&3) + 9)*dstStride + 32);\n\n*/\n\n#endif\n\n\n\n RENAME(blockCopy)(dstBlock + dstStride*8, dstStride,\n\n srcBlock + srcStride*8, srcStride, mode & LEVEL_FIX, &c.packedYOffset);\n\n\n\n RENAME(duplicate)(dstBlock + dstStride*8, dstStride);\n\n\n\n if(mode & LINEAR_IPOL_DEINT_FILTER)\n\n RENAME(deInterlaceInterpolateLinear)(dstBlock, dstStride);\n\n else if(mode & LINEAR_BLEND_DEINT_FILTER)\n\n RENAME(deInterlaceBlendLinear)(dstBlock, dstStride, c.deintTemp + x);\n\n else if(mode & MEDIAN_DEINT_FILTER)\n\n RENAME(deInterlaceMedian)(dstBlock, dstStride);\n\n else if(mode & CUBIC_IPOL_DEINT_FILTER)\n\n RENAME(deInterlaceInterpolateCubic)(dstBlock, dstStride);\n\n else if(mode & FFMPEG_DEINT_FILTER)\n\n RENAME(deInterlaceFF)(dstBlock, dstStride, c.deintTemp + x);\n\n else if(mode & LOWPASS5_DEINT_FILTER)\n\n RENAME(deInterlaceL5)(dstBlock, dstStride, c.deintTemp + x, c.deintTemp + width + x);\n\n/* else if(mode & CUBIC_BLEND_DEINT_FILTER)\n\n RENAME(deInterlaceBlendCubic)(dstBlock, dstStride);\n\n*/\n\n dstBlock+=8;\n\n srcBlock+=8;\n\n }\n\n if(width==FFABS(dstStride))\n\n linecpy(dst, tempDst + 9*dstStride, copyAhead, dstStride);\n\n else{\n\n int i;\n\n for(i=0; i>qpVShift)*QPStride];\n\n int8_t *nonBQPptr= &c.nonBQPTable[(y>>qpVShift)*FFABS(QPStride)];\n\n int QP=0;\n\n /* can we mess with a 8x16 block from srcBlock/dstBlock downwards and 1 line upwards\n\n if not than use a temporary buffer */\n\n if(y+15 >= height){\n\n int i;\n\n /* copy from line (copyAhead) to (copyAhead+7) of src, these will be copied with\n\n blockcopy to dst later */\n\n linecpy(tempSrc + srcStride*copyAhead, srcBlock + srcStride*copyAhead,\n\n FFMAX(height-y-copyAhead, 0), srcStride);\n\n\n\n /* duplicate last line of src to fill the void up to line (copyAhead+7) */\n\n for(i=FFMAX(height-y, 8); i>qpHShift];\n\n c.nonBQP= nonBQPptr[x>>qpHShift];\n\n }else{\n\n QP= QPptr[x>>4];\n\n QP= (QP* QPCorrecture + 256*128)>>16;\n\n c.nonBQP= nonBQPptr[x>>4];\n\n c.nonBQP= (c.nonBQP* QPCorrecture + 256*128)>>16;\n\n yHistogram[ srcBlock[srcStride*12 + 4] ]++;\n\n }\n\n c.QP= QP;\n\n#if TEMPLATE_PP_MMX\n\n __asm__ volatile(\n\n \"movd %1, %%mm7 \\n\\t\"\n\n \"packuswb %%mm7, %%mm7 \\n\\t\" // 0, 0, 0, QP, 0, 0, 0, QP\n\n \"packuswb %%mm7, %%mm7 \\n\\t\" // 0,QP, 0, QP, 0,QP, 0, QP\n\n \"packuswb %%mm7, %%mm7 \\n\\t\" // QP,..., QP\n\n \"movq %%mm7, %0 \\n\\t\"\n\n : \"=m\" (c.pQPb)\n\n : \"r\" (QP)\n\n );\n\n#endif\n\n\n\n\n\n#if TEMPLATE_PP_MMXEXT && HAVE_6REGS\n\n/*\n\n prefetchnta(srcBlock + (((x>>2)&6) + 5)*srcStride + 32);\n\n prefetchnta(srcBlock + (((x>>2)&6) + 6)*srcStride + 32);\n\n prefetcht0(dstBlock + (((x>>2)&6) + 5)*dstStride + 32);\n\n prefetcht0(dstBlock + (((x>>2)&6) + 6)*dstStride + 32);\n\n*/\n\n\n\n __asm__(\n\n \"mov %4, %%\"REG_a\" \\n\\t\"\n\n \"shr $2, %%\"REG_a\" \\n\\t\"\n\n \"and $6, %%\"REG_a\" \\n\\t\"\n\n \"add %5, %%\"REG_a\" \\n\\t\"\n\n \"mov %%\"REG_a\", %%\"REG_d\" \\n\\t\"\n\n \"imul %1, %%\"REG_a\" \\n\\t\"\n\n \"imul %3, %%\"REG_d\" \\n\\t\"\n\n \"prefetchnta 32(%%\"REG_a\", %0) \\n\\t\"\n\n \"prefetcht0 32(%%\"REG_d\", %2) \\n\\t\"\n\n \"add %1, %%\"REG_a\" \\n\\t\"\n\n \"add %3, %%\"REG_d\" \\n\\t\"\n\n \"prefetchnta 32(%%\"REG_a\", %0) \\n\\t\"\n\n \"prefetcht0 32(%%\"REG_d\", %2) \\n\\t\"\n\n :: \"r\" (srcBlock), \"r\" ((x86_reg)srcStride), \"r\" (dstBlock), \"r\" ((x86_reg)dstStride),\n\n \"g\" ((x86_reg)x), \"g\" ((x86_reg)copyAhead)\n\n : \"%\"REG_a, \"%\"REG_d\n\n );\n\n\n\n#elif TEMPLATE_PP_3DNOW\n\n//FIXME check if this is faster on an 3dnow chip or if it is faster without the prefetch or ...\n\n/* prefetch(srcBlock + (((x>>3)&3) + 5)*srcStride + 32);\n\n prefetch(srcBlock + (((x>>3)&3) + 9)*srcStride + 32);\n\n prefetchw(dstBlock + (((x>>3)&3) + 5)*dstStride + 32);\n\n prefetchw(dstBlock + (((x>>3)&3) + 9)*dstStride + 32);\n\n*/\n\n#endif\n\n\n\n RENAME(blockCopy)(dstBlock + dstStride*copyAhead, dstStride,\n\n srcBlock + srcStride*copyAhead, srcStride, mode & LEVEL_FIX, &c.packedYOffset);\n\n\n\n if(mode & LINEAR_IPOL_DEINT_FILTER)\n\n RENAME(deInterlaceInterpolateLinear)(dstBlock, dstStride);\n\n else if(mode & LINEAR_BLEND_DEINT_FILTER)\n\n RENAME(deInterlaceBlendLinear)(dstBlock, dstStride, c.deintTemp + x);\n\n else if(mode & MEDIAN_DEINT_FILTER)\n\n RENAME(deInterlaceMedian)(dstBlock, dstStride);\n\n else if(mode & CUBIC_IPOL_DEINT_FILTER)\n\n RENAME(deInterlaceInterpolateCubic)(dstBlock, dstStride);\n\n else if(mode & FFMPEG_DEINT_FILTER)\n\n RENAME(deInterlaceFF)(dstBlock, dstStride, c.deintTemp + x);\n\n else if(mode & LOWPASS5_DEINT_FILTER)\n\n RENAME(deInterlaceL5)(dstBlock, dstStride, c.deintTemp + x, c.deintTemp + width + x);\n\n/* else if(mode & CUBIC_BLEND_DEINT_FILTER)\n\n RENAME(deInterlaceBlendCubic)(dstBlock, dstStride);\n\n*/\n\n\n\n /* only deblock if we have 2 blocks */\n\n if(y + 8 < height){\n\n if(mode & V_X1_FILTER)\n\n RENAME(vertX1Filter)(dstBlock, stride, &c);\n\n else if(mode & V_DEBLOCK){\n\n const int t= RENAME(vertClassify)(dstBlock, stride, &c);\n\n\n\n if(t==1)\n\n RENAME(doVertLowPass)(dstBlock, stride, &c);\n\n else if(t==2)\n\n RENAME(doVertDefFilter)(dstBlock, stride, &c);\n\n }else if(mode & V_A_DEBLOCK){\n\n RENAME(do_a_deblock)(dstBlock, stride, 1, &c, mode);\n\n }\n\n }\n\n\n\n#if TEMPLATE_PP_MMX\n\n RENAME(transpose1)(tempBlock1, tempBlock2, dstBlock, dstStride);\n\n#endif\n\n /* check if we have a previous block to deblock it with dstBlock */\n\n if(x - 8 >= 0){\n\n#if TEMPLATE_PP_MMX\n\n if(mode & H_X1_FILTER)\n\n RENAME(vertX1Filter)(tempBlock1, 16, &c);\n\n else if(mode & H_DEBLOCK){\n\n//START_TIMER\n\n const int t= RENAME(vertClassify)(tempBlock1, 16, &c);\n\n//STOP_TIMER(\"dc & minmax\")\n\n if(t==1)\n\n RENAME(doVertLowPass)(tempBlock1, 16, &c);\n\n else if(t==2)\n\n RENAME(doVertDefFilter)(tempBlock1, 16, &c);\n\n }else if(mode & H_A_DEBLOCK){\n\n RENAME(do_a_deblock)(tempBlock1, 16, 1, &c, mode);\n\n }\n\n\n\n RENAME(transpose2)(dstBlock-4, dstStride, tempBlock1 + 4*16);\n\n\n\n#else\n\n if(mode & H_X1_FILTER)\n\n horizX1Filter(dstBlock-4, stride, QP);\n\n else if(mode & H_DEBLOCK){\n\n#if TEMPLATE_PP_ALTIVEC\n\n DECLARE_ALIGNED(16, unsigned char, tempBlock)[272];\n\n int t;\n\n transpose_16x8_char_toPackedAlign_altivec(tempBlock, dstBlock - (4 + 1), stride);\n\n\n\n t = vertClassify_altivec(tempBlock-48, 16, &c);\n\n if(t==1) {\n\n doVertLowPass_altivec(tempBlock-48, 16, &c);\n\n transpose_8x16_char_fromPackedAlign_altivec(dstBlock - (4 + 1), tempBlock, stride);\n\n }\n\n else if(t==2) {\n\n doVertDefFilter_altivec(tempBlock-48, 16, &c);\n\n transpose_8x16_char_fromPackedAlign_altivec(dstBlock - (4 + 1), tempBlock, stride);\n\n }\n\n#else\n\n const int t= RENAME(horizClassify)(dstBlock-4, stride, &c);\n\n\n\n if(t==1)\n\n RENAME(doHorizLowPass)(dstBlock-4, stride, &c);\n\n else if(t==2)\n\n RENAME(doHorizDefFilter)(dstBlock-4, stride, &c);\n\n#endif\n\n }else if(mode & H_A_DEBLOCK){\n\n RENAME(do_a_deblock)(dstBlock-8, 1, stride, &c, mode);\n\n }\n\n#endif //TEMPLATE_PP_MMX\n\n if(mode & DERING){\n\n //FIXME filter first line\n\n if(y>0) RENAME(dering)(dstBlock - stride - 8, stride, &c);\n\n }\n\n\n\n if(mode & TEMP_NOISE_FILTER)\n\n {\n\n RENAME(tempNoiseReducer)(dstBlock-8, stride,\n\n c.tempBlurred[isColor] + y*dstStride + x,\n\n c.tempBlurredPast[isColor] + (y>>3)*256 + (x>>3) + 256,\n\n c.ppMode.maxTmpNoise);\n\n }\n\n }\n\n\n\n dstBlock+=8;\n\n srcBlock+=8;\n\n\n\n#if TEMPLATE_PP_MMX\n\n tmpXchg= tempBlock1;\n\n tempBlock1= tempBlock2;\n\n tempBlock2 = tmpXchg;\n\n#endif\n\n }\n\n\n\n if(mode & DERING){\n\n if(y > 0) RENAME(dering)(dstBlock - dstStride - 8, dstStride, &c);\n\n }\n\n\n\n if((mode & TEMP_NOISE_FILTER)){\n\n RENAME(tempNoiseReducer)(dstBlock-8, dstStride,\n\n c.tempBlurred[isColor] + y*dstStride + x,\n\n c.tempBlurredPast[isColor] + (y>>3)*256 + (x>>3) + 256,\n\n c.ppMode.maxTmpNoise);\n\n }\n\n\n\n /* did we use a tmp buffer for the last lines*/\n\n if(y+15 >= height){\n\n uint8_t *dstBlock= &(dst[y*dstStride]);\n\n if(width==FFABS(dstStride))\n\n linecpy(dstBlock, tempDst + dstStride, height-y, dstStride);\n\n else{\n\n int i;\n\n for(i=0; i max) max=yHistogram[i];\n\n\n\n for(i=1; i<256; i++){\n\n int x;\n\n int start=yHistogram[i-1]/(max/256+1);\n\n int end=yHistogram[i]/(max/256+1);\n\n int inc= end > start ? 1 : -1;\n\n for(x=start; x!=end+inc; x+=inc)\n\n dst[ i*dstStride + x]+=128;\n\n }\n\n\n\n for(i=0; i<100; i+=2){\n\n dst[ (white)*dstStride + i]+=128;\n\n dst[ (black)*dstStride + i]+=128;\n\n }\n\n }\n\n#endif\n\n\n\n *c2= c; //copy local context back\n\n\n\n}\n", + "output": "0", + "index": 27294 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static av_cold int encode_init(AVCodecContext* avc_context)\n\n{\n\n th_info t_info;\n\n th_comment t_comment;\n\n ogg_packet o_packet;\n\n unsigned int offset;\n\n TheoraContext *h = avc_context->priv_data;\n\n uint32_t gop_size = avc_context->gop_size;\n\n\n\n /* Set up the theora_info struct */\n\n th_info_init(&t_info);\n\n t_info.frame_width = FFALIGN(avc_context->width, 16);\n\n t_info.frame_height = FFALIGN(avc_context->height, 16);\n\n t_info.pic_width = avc_context->width;\n\n t_info.pic_height = avc_context->height;\n\n t_info.pic_x = 0;\n\n t_info.pic_y = 0;\n\n /* Swap numerator and denominator as time_base in AVCodecContext gives the\n\n * time period between frames, but theora_info needs the framerate. */\n\n t_info.fps_numerator = avc_context->time_base.den;\n\n t_info.fps_denominator = avc_context->time_base.num;\n\n if (avc_context->sample_aspect_ratio.num) {\n\n t_info.aspect_numerator = avc_context->sample_aspect_ratio.num;\n\n t_info.aspect_denominator = avc_context->sample_aspect_ratio.den;\n\n } else {\n\n t_info.aspect_numerator = 1;\n\n t_info.aspect_denominator = 1;\n\n }\n\n\n\n if (avc_context->color_primaries == AVCOL_PRI_BT470M)\n\n t_info.colorspace = TH_CS_ITU_REC_470M;\n\n else if (avc_context->color_primaries == AVCOL_PRI_BT470BG)\n\n t_info.colorspace = TH_CS_ITU_REC_470BG;\n\n else\n\n t_info.colorspace = TH_CS_UNSPECIFIED;\n\n\n\n if (avc_context->pix_fmt == AV_PIX_FMT_YUV420P)\n\n t_info.pixel_fmt = TH_PF_420;\n\n else if (avc_context->pix_fmt == AV_PIX_FMT_YUV422P)\n\n t_info.pixel_fmt = TH_PF_422;\n\n else if (avc_context->pix_fmt == AV_PIX_FMT_YUV444P)\n\n t_info.pixel_fmt = TH_PF_444;\n\n else {\n\n av_log(avc_context, AV_LOG_ERROR, \"Unsupported pix_fmt\\n\");\n\n return -1;\n\n }\n\n av_pix_fmt_get_chroma_sub_sample(avc_context->pix_fmt,\n\n &h->uv_hshift, &h->uv_vshift);\n\n\n\n if (avc_context->flags & CODEC_FLAG_QSCALE) {\n\n /* to be constant with the libvorbis implementation, clip global_quality to 0 - 10\n\n Theora accepts a quality parameter p, which is:\n\n * 0 <= p <=63\n\n * an int value\n\n */\n\n t_info.quality = av_clipf(avc_context->global_quality / (float)FF_QP2LAMBDA, 0, 10) * 6.3;\n\n t_info.target_bitrate = 0;\n\n } else {\n\n t_info.target_bitrate = avc_context->bit_rate;\n\n t_info.quality = 0;\n\n }\n\n\n\n /* Now initialise libtheora */\n\n h->t_state = th_encode_alloc(&t_info);\n\n if (!h->t_state) {\n\n av_log(avc_context, AV_LOG_ERROR, \"theora_encode_init failed\\n\");\n\n return -1;\n\n }\n\n\n\n h->keyframe_mask = (1 << t_info.keyframe_granule_shift) - 1;\n\n /* Clear up theora_info struct */\n\n th_info_clear(&t_info);\n\n\n\n if (th_encode_ctl(h->t_state, TH_ENCCTL_SET_KEYFRAME_FREQUENCY_FORCE,\n\n &gop_size, sizeof(gop_size))) {\n\n av_log(avc_context, AV_LOG_ERROR, \"Error setting GOP size\\n\");\n\n return -1;\n\n }\n\n\n\n // need to enable 2 pass (via TH_ENCCTL_2PASS_) before encoding headers\n\n if (avc_context->flags & CODEC_FLAG_PASS1) {\n\n if (get_stats(avc_context, 0))\n\n return -1;\n\n } else if (avc_context->flags & CODEC_FLAG_PASS2) {\n\n if (submit_stats(avc_context))\n\n return -1;\n\n }\n\n\n\n /*\n\n Output first header packet consisting of theora\n\n header, comment, and tables.\n\n\n\n Each one is prefixed with a 16bit size, then they\n\n are concatenated together into libavcodec's extradata.\n\n */\n\n offset = 0;\n\n\n\n /* Headers */\n\n th_comment_init(&t_comment);\n\n\n\n while (th_encode_flushheader(h->t_state, &t_comment, &o_packet))\n\n if (concatenate_packet(&offset, avc_context, &o_packet))\n\n return -1;\n\n\n\n th_comment_clear(&t_comment);\n\n\n\n /* Set up the output AVFrame */\n\n avc_context->coded_frame = av_frame_alloc();\n\n if (!avc_context->coded_frame)\n\n return AVERROR(ENOMEM);\n\n\n\n return 0;\n\n}\n", + "output": "0", + "index": 16572 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static float get_band_cost_SPAIR_mips(struct AACEncContext *s,\n\n PutBitContext *pb, 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 Q34 = ff_aac_pow34sf_tab[POW_SF2_ZERO - scale_idx + SCALE_ONE_POS - SCALE_DIV_512];\n\n const float IQ = ff_aac_pow2sf_tab [POW_SF2_ZERO + scale_idx - SCALE_ONE_POS + SCALE_DIV_512];\n\n int i;\n\n float cost = 0;\n\n int qc1, qc2, qc3, qc4;\n\n int curbits = 0;\n\n\n\n uint8_t *p_bits = (uint8_t *)ff_aac_spectral_bits[cb-1];\n\n float *p_codes = (float *)ff_aac_codebook_vectors[cb-1];\n\n\n\n for (i = 0; i < size; i += 4) {\n\n const float *vec, *vec2;\n\n int curidx, curidx2;\n\n int *in_int = (int *)&in[i];\n\n float *in_pos = (float *)&in[i];\n\n float di0, di1, di2, di3;\n\n int t0, t1, t2, t3, t4, t5, t6, t7;\n\n\n\n qc1 = scaled[i ] * Q34 + ROUND_STANDARD;\n\n qc2 = scaled[i+1] * Q34 + ROUND_STANDARD;\n\n qc3 = scaled[i+2] * Q34 + ROUND_STANDARD;\n\n qc4 = scaled[i+3] * Q34 + ROUND_STANDARD;\n\n\n\n __asm__ volatile (\n\n \".set push \\n\\t\"\n\n \".set noreorder \\n\\t\"\n\n\n\n \"ori %[t4], $zero, 4 \\n\\t\"\n\n \"slt %[t0], %[t4], %[qc1] \\n\\t\"\n\n \"slt %[t1], %[t4], %[qc2] \\n\\t\"\n\n \"slt %[t2], %[t4], %[qc3] \\n\\t\"\n\n \"slt %[t3], %[t4], %[qc4] \\n\\t\"\n\n \"movn %[qc1], %[t4], %[t0] \\n\\t\"\n\n \"movn %[qc2], %[t4], %[t1] \\n\\t\"\n\n \"movn %[qc3], %[t4], %[t2] \\n\\t\"\n\n \"movn %[qc4], %[t4], %[t3] \\n\\t\"\n\n \"lw %[t0], 0(%[in_int]) \\n\\t\"\n\n \"lw %[t1], 4(%[in_int]) \\n\\t\"\n\n \"lw %[t2], 8(%[in_int]) \\n\\t\"\n\n \"lw %[t3], 12(%[in_int]) \\n\\t\"\n\n \"srl %[t0], %[t0], 31 \\n\\t\"\n\n \"srl %[t1], %[t1], 31 \\n\\t\"\n\n \"srl %[t2], %[t2], 31 \\n\\t\"\n\n \"srl %[t3], %[t3], 31 \\n\\t\"\n\n \"subu %[t4], $zero, %[qc1] \\n\\t\"\n\n \"subu %[t5], $zero, %[qc2] \\n\\t\"\n\n \"subu %[t6], $zero, %[qc3] \\n\\t\"\n\n \"subu %[t7], $zero, %[qc4] \\n\\t\"\n\n \"movn %[qc1], %[t4], %[t0] \\n\\t\"\n\n \"movn %[qc2], %[t5], %[t1] \\n\\t\"\n\n \"movn %[qc3], %[t6], %[t2] \\n\\t\"\n\n \"movn %[qc4], %[t7], %[t3] \\n\\t\"\n\n\n\n \".set pop \\n\\t\"\n\n\n\n : [qc1]\"+r\"(qc1), [qc2]\"+r\"(qc2),\n\n [qc3]\"+r\"(qc3), [qc4]\"+r\"(qc4),\n\n [t0]\"=&r\"(t0), [t1]\"=&r\"(t1), [t2]\"=&r\"(t2), [t3]\"=&r\"(t3),\n\n [t4]\"=&r\"(t4), [t5]\"=&r\"(t5), [t6]\"=&r\"(t6), [t7]\"=&r\"(t7)\n\n : [in_int]\"r\"(in_int)\n\n : \"memory\"\n\n );\n\n\n\n curidx = 9 * qc1;\n\n curidx += qc2 + 40;\n\n\n\n curidx2 = 9 * qc3;\n\n curidx2 += qc4 + 40;\n\n\n\n curbits += p_bits[curidx];\n\n curbits += p_bits[curidx2];\n\n\n\n vec = &p_codes[curidx*2];\n\n vec2 = &p_codes[curidx2*2];\n\n\n\n __asm__ volatile (\n\n \".set push \\n\\t\"\n\n \".set noreorder \\n\\t\"\n\n\n\n \"lwc1 $f0, 0(%[in_pos]) \\n\\t\"\n\n \"lwc1 $f1, 0(%[vec]) \\n\\t\"\n\n \"lwc1 $f2, 4(%[in_pos]) \\n\\t\"\n\n \"lwc1 $f3, 4(%[vec]) \\n\\t\"\n\n \"lwc1 $f4, 8(%[in_pos]) \\n\\t\"\n\n \"lwc1 $f5, 0(%[vec2]) \\n\\t\"\n\n \"lwc1 $f6, 12(%[in_pos]) \\n\\t\"\n\n \"lwc1 $f7, 4(%[vec2]) \\n\\t\"\n\n \"nmsub.s %[di0], $f0, $f1, %[IQ] \\n\\t\"\n\n \"nmsub.s %[di1], $f2, $f3, %[IQ] \\n\\t\"\n\n \"nmsub.s %[di2], $f4, $f5, %[IQ] \\n\\t\"\n\n \"nmsub.s %[di3], $f6, $f7, %[IQ] \\n\\t\"\n\n\n\n \".set pop \\n\\t\"\n\n\n\n : [di0]\"=&f\"(di0), [di1]\"=&f\"(di1),\n\n [di2]\"=&f\"(di2), [di3]\"=&f\"(di3)\n\n : [in_pos]\"r\"(in_pos), [vec]\"r\"(vec),\n\n [vec2]\"r\"(vec2), [IQ]\"f\"(IQ)\n\n : \"$f0\", \"$f1\", \"$f2\", \"$f3\",\n\n \"$f4\", \"$f5\", \"$f6\", \"$f7\",\n\n \"memory\"\n\n );\n\n\n\n cost += di0 * di0 + di1 * di1\n\n + di2 * di2 + di3 * di3;\n\n }\n\n\n\n if (bits)\n\n *bits = curbits;\n\n return cost * lambda + curbits;\n\n}\n", + "output": "1", + "index": 17943 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static uint64_t coroutine_fn mirror_iteration(MirrorBlockJob *s)\n\n{\n\n BlockDriverState *source = blk_bs(s->common.blk);\n\n int64_t sector_num, first_chunk;\n\n uint64_t delay_ns = 0;\n\n /* At least the first dirty chunk is mirrored in one iteration. */\n\n int nb_chunks = 1;\n\n int64_t end = s->bdev_length / BDRV_SECTOR_SIZE;\n\n int sectors_per_chunk = s->granularity >> BDRV_SECTOR_BITS;\n\n bool write_zeroes_ok = bdrv_can_write_zeroes_with_unmap(blk_bs(s->target));\n\n\n\n sector_num = hbitmap_iter_next(&s->hbi);\n\n if (sector_num < 0) {\n\n bdrv_dirty_iter_init(s->dirty_bitmap, &s->hbi);\n\n sector_num = hbitmap_iter_next(&s->hbi);\n\n trace_mirror_restart_iter(s, bdrv_get_dirty_count(s->dirty_bitmap));\n\n assert(sector_num >= 0);\n\n }\n\n\n\n first_chunk = sector_num / sectors_per_chunk;\n\n while (test_bit(first_chunk, s->in_flight_bitmap)) {\n\n trace_mirror_yield_in_flight(s, sector_num, s->in_flight);\n\n mirror_wait_for_io(s);\n\n }\n\n\n\n block_job_pause_point(&s->common);\n\n\n\n /* Find the number of consective dirty chunks following the first dirty\n\n * one, and wait for in flight requests in them. */\n\n while (nb_chunks * sectors_per_chunk < (s->buf_size >> BDRV_SECTOR_BITS)) {\n\n int64_t hbitmap_next;\n\n int64_t next_sector = sector_num + nb_chunks * sectors_per_chunk;\n\n int64_t next_chunk = next_sector / sectors_per_chunk;\n\n if (next_sector >= end ||\n\n !bdrv_get_dirty(source, s->dirty_bitmap, next_sector)) {\n\n break;\n\n }\n\n if (test_bit(next_chunk, s->in_flight_bitmap)) {\n\n break;\n\n }\n\n\n\n hbitmap_next = hbitmap_iter_next(&s->hbi);\n\n if (hbitmap_next > next_sector || hbitmap_next < 0) {\n\n /* The bitmap iterator's cache is stale, refresh it */\n\n bdrv_set_dirty_iter(&s->hbi, next_sector);\n\n hbitmap_next = hbitmap_iter_next(&s->hbi);\n\n }\n\n assert(hbitmap_next == next_sector);\n\n nb_chunks++;\n\n }\n\n\n\n /* Clear dirty bits before querying the block status, because\n\n * calling bdrv_get_block_status_above could yield - if some blocks are\n\n * marked dirty in this window, we need to know.\n\n */\n\n bdrv_reset_dirty_bitmap(s->dirty_bitmap, sector_num,\n\n nb_chunks * sectors_per_chunk);\n\n bitmap_set(s->in_flight_bitmap, sector_num / sectors_per_chunk, nb_chunks);\n\n while (nb_chunks > 0 && sector_num < end) {\n\n int ret;\n\n int io_sectors, io_sectors_acct;\n\n BlockDriverState *file;\n\n enum MirrorMethod {\n\n MIRROR_METHOD_COPY,\n\n MIRROR_METHOD_ZERO,\n\n MIRROR_METHOD_DISCARD\n\n } mirror_method = MIRROR_METHOD_COPY;\n\n\n\n assert(!(sector_num % sectors_per_chunk));\n\n ret = bdrv_get_block_status_above(source, NULL, sector_num,\n\n nb_chunks * sectors_per_chunk,\n\n &io_sectors, &file);\n\n if (ret < 0) {\n\n io_sectors = nb_chunks * sectors_per_chunk;\n\n }\n\n\n\n io_sectors -= io_sectors % sectors_per_chunk;\n\n if (io_sectors < sectors_per_chunk) {\n\n io_sectors = sectors_per_chunk;\n\n } else if (ret >= 0 && !(ret & BDRV_BLOCK_DATA)) {\n\n int64_t target_sector_num;\n\n int target_nb_sectors;\n\n bdrv_round_sectors_to_clusters(blk_bs(s->target), sector_num,\n\n io_sectors, &target_sector_num,\n\n &target_nb_sectors);\n\n if (target_sector_num == sector_num &&\n\n target_nb_sectors == io_sectors) {\n\n mirror_method = ret & BDRV_BLOCK_ZERO ?\n\n MIRROR_METHOD_ZERO :\n\n MIRROR_METHOD_DISCARD;\n\n }\n\n }\n\n\n\n while (s->in_flight >= MAX_IN_FLIGHT) {\n\n trace_mirror_yield_in_flight(s, sector_num, s->in_flight);\n\n mirror_wait_for_io(s);\n\n }\n\n\n\n mirror_clip_sectors(s, sector_num, &io_sectors);\n\n switch (mirror_method) {\n\n case MIRROR_METHOD_COPY:\n\n io_sectors = mirror_do_read(s, sector_num, io_sectors);\n\n io_sectors_acct = io_sectors;\n\n break;\n\n case MIRROR_METHOD_ZERO:\n\n case MIRROR_METHOD_DISCARD:\n\n mirror_do_zero_or_discard(s, sector_num, io_sectors,\n\n mirror_method == MIRROR_METHOD_DISCARD);\n\n if (write_zeroes_ok) {\n\n io_sectors_acct = 0;\n\n } else {\n\n io_sectors_acct = io_sectors;\n\n }\n\n break;\n\n default:\n\n abort();\n\n }\n\n assert(io_sectors);\n\n sector_num += io_sectors;\n\n nb_chunks -= DIV_ROUND_UP(io_sectors, sectors_per_chunk);\n\n if (s->common.speed) {\n\n delay_ns = ratelimit_calculate_delay(&s->limit, io_sectors_acct);\n\n }\n\n }\n\n return delay_ns;\n\n}\n", + "output": "0", + "index": 10305 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void disas_xtensa_insn(DisasContext *dc)\n\n{\n\n#define HAS_OPTION(opt) do { \\\n\n if (!option_enabled(dc, opt)) { \\\n\n qemu_log(\"Option %d is not enabled %s:%d\\n\", \\\n\n (opt), __FILE__, __LINE__); \\\n\n goto invalid_opcode; \\\n\n } \\\n\n } while (0)\n\n\n\n#ifdef TARGET_WORDS_BIGENDIAN\n\n#define OP0 (((b0) & 0xf0) >> 4)\n\n#define OP1 (((b2) & 0xf0) >> 4)\n\n#define OP2 ((b2) & 0xf)\n\n#define RRR_R ((b1) & 0xf)\n\n#define RRR_S (((b1) & 0xf0) >> 4)\n\n#define RRR_T ((b0) & 0xf)\n\n#else\n\n#define OP0 (((b0) & 0xf))\n\n#define OP1 (((b2) & 0xf))\n\n#define OP2 (((b2) & 0xf0) >> 4)\n\n#define RRR_R (((b1) & 0xf0) >> 4)\n\n#define RRR_S (((b1) & 0xf))\n\n#define RRR_T (((b0) & 0xf0) >> 4)\n\n#endif\n\n\n\n#define RRRN_R RRR_R\n\n#define RRRN_S RRR_S\n\n#define RRRN_T RRR_T\n\n\n\n#define RRI8_R RRR_R\n\n#define RRI8_S RRR_S\n\n#define RRI8_T RRR_T\n\n#define RRI8_IMM8 (b2)\n\n#define RRI8_IMM8_SE ((((b2) & 0x80) ? 0xffffff00 : 0) | RRI8_IMM8)\n\n\n\n#ifdef TARGET_WORDS_BIGENDIAN\n\n#define RI16_IMM16 (((b1) << 8) | (b2))\n\n#else\n\n#define RI16_IMM16 (((b2) << 8) | (b1))\n\n#endif\n\n\n\n#ifdef TARGET_WORDS_BIGENDIAN\n\n#define CALL_N (((b0) & 0xc) >> 2)\n\n#define CALL_OFFSET ((((b0) & 0x3) << 16) | ((b1) << 8) | (b2))\n\n#else\n\n#define CALL_N (((b0) & 0x30) >> 4)\n\n#define CALL_OFFSET ((((b0) & 0xc0) >> 6) | ((b1) << 2) | ((b2) << 10))\n\n#endif\n\n#define CALL_OFFSET_SE \\\n\n (((CALL_OFFSET & 0x20000) ? 0xfffc0000 : 0) | CALL_OFFSET)\n\n\n\n#define CALLX_N CALL_N\n\n#ifdef TARGET_WORDS_BIGENDIAN\n\n#define CALLX_M ((b0) & 0x3)\n\n#else\n\n#define CALLX_M (((b0) & 0xc0) >> 6)\n\n#endif\n\n#define CALLX_S RRR_S\n\n\n\n#define BRI12_M CALLX_M\n\n#define BRI12_S RRR_S\n\n#ifdef TARGET_WORDS_BIGENDIAN\n\n#define BRI12_IMM12 ((((b1) & 0xf) << 8) | (b2))\n\n#else\n\n#define BRI12_IMM12 ((((b1) & 0xf0) >> 4) | ((b2) << 4))\n\n#endif\n\n#define BRI12_IMM12_SE (((BRI12_IMM12 & 0x800) ? 0xfffff000 : 0) | BRI12_IMM12)\n\n\n\n#define BRI8_M BRI12_M\n\n#define BRI8_R RRI8_R\n\n#define BRI8_S RRI8_S\n\n#define BRI8_IMM8 RRI8_IMM8\n\n#define BRI8_IMM8_SE RRI8_IMM8_SE\n\n\n\n#define RSR_SR (b1)\n\n\n\n uint8_t b0 = ldub_code(dc->pc);\n\n uint8_t b1 = ldub_code(dc->pc + 1);\n\n uint8_t b2 = ldub_code(dc->pc + 2);\n\n\n\n static const uint32_t B4CONST[] = {\n\n 0xffffffff, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 16, 32, 64, 128, 256\n\n };\n\n\n\n static const uint32_t B4CONSTU[] = {\n\n 32768, 65536, 2, 3, 4, 5, 6, 7, 8, 10, 12, 16, 32, 64, 128, 256\n\n };\n\n\n\n if (OP0 >= 8) {\n\n dc->next_pc = dc->pc + 2;\n\n HAS_OPTION(XTENSA_OPTION_CODE_DENSITY);\n\n } else {\n\n dc->next_pc = dc->pc + 3;\n\n }\n\n\n\n switch (OP0) {\n\n case 0: /*QRST*/\n\n switch (OP1) {\n\n case 0: /*RST0*/\n\n switch (OP2) {\n\n case 0: /*ST0*/\n\n if ((RRR_R & 0xc) == 0x8) {\n\n HAS_OPTION(XTENSA_OPTION_BOOLEAN);\n\n }\n\n\n\n switch (RRR_R) {\n\n case 0: /*SNM0*/\n\n switch (CALLX_M) {\n\n case 0: /*ILL*/\n\n break;\n\n\n\n case 1: /*reserved*/\n\n break;\n\n\n\n case 2: /*JR*/\n\n switch (CALLX_N) {\n\n case 0: /*RET*/\n\n case 2: /*JX*/\n\n gen_jump(dc, cpu_R[CALLX_S]);\n\n break;\n\n\n\n case 1: /*RETWw*/\n\n HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);\n\n break;\n\n\n\n case 3: /*reserved*/\n\n break;\n\n }\n\n break;\n\n\n\n case 3: /*CALLX*/\n\n switch (CALLX_N) {\n\n case 0: /*CALLX0*/\n\n {\n\n TCGv_i32 tmp = tcg_temp_new_i32();\n\n tcg_gen_mov_i32(tmp, cpu_R[CALLX_S]);\n\n tcg_gen_movi_i32(cpu_R[0], dc->next_pc);\n\n gen_jump(dc, tmp);\n\n tcg_temp_free(tmp);\n\n }\n\n break;\n\n\n\n case 1: /*CALLX4w*/\n\n case 2: /*CALLX8w*/\n\n case 3: /*CALLX12w*/\n\n HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);\n\n break;\n\n }\n\n break;\n\n }\n\n break;\n\n\n\n case 1: /*MOVSPw*/\n\n HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);\n\n break;\n\n\n\n case 2: /*SYNC*/\n\n break;\n\n\n\n case 3:\n\n break;\n\n\n\n }\n\n break;\n\n\n\n case 1: /*AND*/\n\n tcg_gen_and_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);\n\n break;\n\n\n\n case 2: /*OR*/\n\n tcg_gen_or_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);\n\n break;\n\n\n\n case 3: /*XOR*/\n\n tcg_gen_xor_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);\n\n break;\n\n\n\n case 4: /*ST1*/\n\n switch (RRR_R) {\n\n case 0: /*SSR*/\n\n gen_right_shift_sar(dc, cpu_R[RRR_S]);\n\n break;\n\n\n\n case 1: /*SSL*/\n\n gen_left_shift_sar(dc, cpu_R[RRR_S]);\n\n break;\n\n\n\n case 2: /*SSA8L*/\n\n {\n\n TCGv_i32 tmp = tcg_temp_new_i32();\n\n tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3);\n\n gen_right_shift_sar(dc, tmp);\n\n tcg_temp_free(tmp);\n\n }\n\n break;\n\n\n\n case 3: /*SSA8B*/\n\n {\n\n TCGv_i32 tmp = tcg_temp_new_i32();\n\n tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3);\n\n gen_left_shift_sar(dc, tmp);\n\n tcg_temp_free(tmp);\n\n }\n\n break;\n\n\n\n case 4: /*SSAI*/\n\n {\n\n TCGv_i32 tmp = tcg_const_i32(\n\n RRR_S | ((RRR_T & 1) << 4));\n\n gen_right_shift_sar(dc, tmp);\n\n tcg_temp_free(tmp);\n\n }\n\n break;\n\n\n\n case 6: /*RER*/\n\n break;\n\n\n\n case 7: /*WER*/\n\n break;\n\n\n\n case 8: /*ROTWw*/\n\n HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);\n\n break;\n\n\n\n case 14: /*NSAu*/\n\n HAS_OPTION(XTENSA_OPTION_MISC_OP);\n\n gen_helper_nsa(cpu_R[RRR_T], cpu_R[RRR_S]);\n\n break;\n\n\n\n case 15: /*NSAUu*/\n\n HAS_OPTION(XTENSA_OPTION_MISC_OP);\n\n gen_helper_nsau(cpu_R[RRR_T], cpu_R[RRR_S]);\n\n break;\n\n\n\n default: /*reserved*/\n\n break;\n\n }\n\n break;\n\n\n\n case 5: /*TLB*/\n\n break;\n\n\n\n case 6: /*RT0*/\n\n switch (RRR_S) {\n\n case 0: /*NEG*/\n\n tcg_gen_neg_i32(cpu_R[RRR_R], cpu_R[RRR_T]);\n\n break;\n\n\n\n case 1: /*ABS*/\n\n {\n\n int label = gen_new_label();\n\n tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_T]);\n\n tcg_gen_brcondi_i32(\n\n TCG_COND_GE, cpu_R[RRR_R], 0, label);\n\n tcg_gen_neg_i32(cpu_R[RRR_R], cpu_R[RRR_T]);\n\n gen_set_label(label);\n\n }\n\n break;\n\n\n\n default: /*reserved*/\n\n break;\n\n }\n\n break;\n\n\n\n case 7: /*reserved*/\n\n break;\n\n\n\n case 8: /*ADD*/\n\n tcg_gen_add_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);\n\n break;\n\n\n\n case 9: /*ADD**/\n\n case 10:\n\n case 11:\n\n {\n\n TCGv_i32 tmp = tcg_temp_new_i32();\n\n tcg_gen_shli_i32(tmp, cpu_R[RRR_S], OP2 - 8);\n\n tcg_gen_add_i32(cpu_R[RRR_R], tmp, cpu_R[RRR_T]);\n\n tcg_temp_free(tmp);\n\n }\n\n break;\n\n\n\n case 12: /*SUB*/\n\n tcg_gen_sub_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);\n\n break;\n\n\n\n case 13: /*SUB**/\n\n case 14:\n\n case 15:\n\n {\n\n TCGv_i32 tmp = tcg_temp_new_i32();\n\n tcg_gen_shli_i32(tmp, cpu_R[RRR_S], OP2 - 12);\n\n tcg_gen_sub_i32(cpu_R[RRR_R], tmp, cpu_R[RRR_T]);\n\n tcg_temp_free(tmp);\n\n }\n\n break;\n\n }\n\n break;\n\n\n\n case 1: /*RST1*/\n\n switch (OP2) {\n\n case 0: /*SLLI*/\n\n case 1:\n\n tcg_gen_shli_i32(cpu_R[RRR_R], cpu_R[RRR_S],\n\n 32 - (RRR_T | ((OP2 & 1) << 4)));\n\n break;\n\n\n\n case 2: /*SRAI*/\n\n case 3:\n\n tcg_gen_sari_i32(cpu_R[RRR_R], cpu_R[RRR_T],\n\n RRR_S | ((OP2 & 1) << 4));\n\n break;\n\n\n\n case 4: /*SRLI*/\n\n tcg_gen_shri_i32(cpu_R[RRR_R], cpu_R[RRR_T], RRR_S);\n\n break;\n\n\n\n case 6: /*XSR*/\n\n {\n\n TCGv_i32 tmp = tcg_temp_new_i32();\n\n tcg_gen_mov_i32(tmp, cpu_R[RRR_T]);\n\n gen_rsr(dc, cpu_R[RRR_T], RSR_SR);\n\n gen_wsr(dc, RSR_SR, tmp);\n\n tcg_temp_free(tmp);\n\n }\n\n break;\n\n\n\n /*\n\n * Note: 64 bit ops are used here solely because SAR values\n\n * have range 0..63\n\n */\n\n#define gen_shift_reg(cmd, reg) do { \\\n\n TCGv_i64 tmp = tcg_temp_new_i64(); \\\n\n tcg_gen_extu_i32_i64(tmp, reg); \\\n\n tcg_gen_##cmd##_i64(v, v, tmp); \\\n\n tcg_gen_trunc_i64_i32(cpu_R[RRR_R], v); \\\n\n tcg_temp_free_i64(v); \\\n\n tcg_temp_free_i64(tmp); \\\n\n } while (0)\n\n\n\n#define gen_shift(cmd) gen_shift_reg(cmd, cpu_SR[SAR])\n\n\n\n case 8: /*SRC*/\n\n {\n\n TCGv_i64 v = tcg_temp_new_i64();\n\n tcg_gen_concat_i32_i64(v, cpu_R[RRR_T], cpu_R[RRR_S]);\n\n gen_shift(shr);\n\n }\n\n break;\n\n\n\n case 9: /*SRL*/\n\n if (dc->sar_5bit) {\n\n tcg_gen_shr_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]);\n\n } else {\n\n TCGv_i64 v = tcg_temp_new_i64();\n\n tcg_gen_extu_i32_i64(v, cpu_R[RRR_T]);\n\n gen_shift(shr);\n\n }\n\n break;\n\n\n\n case 10: /*SLL*/\n\n if (dc->sar_m32_5bit) {\n\n tcg_gen_shl_i32(cpu_R[RRR_R], cpu_R[RRR_S], dc->sar_m32);\n\n } else {\n\n TCGv_i64 v = tcg_temp_new_i64();\n\n TCGv_i32 s = tcg_const_i32(32);\n\n tcg_gen_sub_i32(s, s, cpu_SR[SAR]);\n\n tcg_gen_andi_i32(s, s, 0x3f);\n\n tcg_gen_extu_i32_i64(v, cpu_R[RRR_S]);\n\n gen_shift_reg(shl, s);\n\n tcg_temp_free(s);\n\n }\n\n break;\n\n\n\n case 11: /*SRA*/\n\n if (dc->sar_5bit) {\n\n tcg_gen_sar_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]);\n\n } else {\n\n TCGv_i64 v = tcg_temp_new_i64();\n\n tcg_gen_ext_i32_i64(v, cpu_R[RRR_T]);\n\n gen_shift(sar);\n\n }\n\n break;\n\n#undef gen_shift\n\n#undef gen_shift_reg\n\n\n\n case 12: /*MUL16U*/\n\n HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL);\n\n {\n\n TCGv_i32 v1 = tcg_temp_new_i32();\n\n TCGv_i32 v2 = tcg_temp_new_i32();\n\n tcg_gen_ext16u_i32(v1, cpu_R[RRR_S]);\n\n tcg_gen_ext16u_i32(v2, cpu_R[RRR_T]);\n\n tcg_gen_mul_i32(cpu_R[RRR_R], v1, v2);\n\n tcg_temp_free(v2);\n\n tcg_temp_free(v1);\n\n }\n\n break;\n\n\n\n case 13: /*MUL16S*/\n\n HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL);\n\n {\n\n TCGv_i32 v1 = tcg_temp_new_i32();\n\n TCGv_i32 v2 = tcg_temp_new_i32();\n\n tcg_gen_ext16s_i32(v1, cpu_R[RRR_S]);\n\n tcg_gen_ext16s_i32(v2, cpu_R[RRR_T]);\n\n tcg_gen_mul_i32(cpu_R[RRR_R], v1, v2);\n\n tcg_temp_free(v2);\n\n tcg_temp_free(v1);\n\n }\n\n break;\n\n\n\n default: /*reserved*/\n\n break;\n\n }\n\n break;\n\n\n\n case 2: /*RST2*/\n\n break;\n\n\n\n case 3: /*RST3*/\n\n switch (OP2) {\n\n case 0: /*RSR*/\n\n gen_rsr(dc, cpu_R[RRR_T], RSR_SR);\n\n break;\n\n\n\n case 1: /*WSR*/\n\n gen_wsr(dc, RSR_SR, cpu_R[RRR_T]);\n\n break;\n\n\n\n case 2: /*SEXTu*/\n\n HAS_OPTION(XTENSA_OPTION_MISC_OP);\n\n {\n\n int shift = 24 - RRR_T;\n\n\n\n if (shift == 24) {\n\n tcg_gen_ext8s_i32(cpu_R[RRR_R], cpu_R[RRR_S]);\n\n } else if (shift == 16) {\n\n tcg_gen_ext16s_i32(cpu_R[RRR_R], cpu_R[RRR_S]);\n\n } else {\n\n TCGv_i32 tmp = tcg_temp_new_i32();\n\n tcg_gen_shli_i32(tmp, cpu_R[RRR_S], shift);\n\n tcg_gen_sari_i32(cpu_R[RRR_R], tmp, shift);\n\n tcg_temp_free(tmp);\n\n }\n\n }\n\n break;\n\n\n\n case 3: /*CLAMPSu*/\n\n HAS_OPTION(XTENSA_OPTION_MISC_OP);\n\n {\n\n TCGv_i32 tmp1 = tcg_temp_new_i32();\n\n TCGv_i32 tmp2 = tcg_temp_new_i32();\n\n int label = gen_new_label();\n\n\n\n tcg_gen_sari_i32(tmp1, cpu_R[RRR_S], 24 - RRR_T);\n\n tcg_gen_xor_i32(tmp2, tmp1, cpu_R[RRR_S]);\n\n tcg_gen_andi_i32(tmp2, tmp2, 0xffffffff << (RRR_T + 7));\n\n tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_S]);\n\n tcg_gen_brcondi_i32(TCG_COND_EQ, tmp2, 0, label);\n\n\n\n tcg_gen_sari_i32(tmp1, cpu_R[RRR_S], 31);\n\n tcg_gen_xori_i32(cpu_R[RRR_R], tmp1,\n\n 0xffffffff >> (25 - RRR_T));\n\n\n\n gen_set_label(label);\n\n\n\n tcg_temp_free(tmp1);\n\n tcg_temp_free(tmp2);\n\n }\n\n break;\n\n\n\n case 4: /*MINu*/\n\n case 5: /*MAXu*/\n\n case 6: /*MINUu*/\n\n case 7: /*MAXUu*/\n\n HAS_OPTION(XTENSA_OPTION_MISC_OP);\n\n {\n\n static const TCGCond cond[] = {\n\n TCG_COND_LE,\n\n TCG_COND_GE,\n\n TCG_COND_LEU,\n\n TCG_COND_GEU\n\n };\n\n int label = gen_new_label();\n\n\n\n if (RRR_R != RRR_T) {\n\n tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_S]);\n\n tcg_gen_brcond_i32(cond[OP2 - 4],\n\n cpu_R[RRR_S], cpu_R[RRR_T], label);\n\n tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_T]);\n\n } else {\n\n tcg_gen_brcond_i32(cond[OP2 - 4],\n\n cpu_R[RRR_T], cpu_R[RRR_S], label);\n\n tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_S]);\n\n }\n\n gen_set_label(label);\n\n }\n\n break;\n\n\n\n case 8: /*MOVEQZ*/\n\n case 9: /*MOVNEZ*/\n\n case 10: /*MOVLTZ*/\n\n case 11: /*MOVGEZ*/\n\n {\n\n static const TCGCond cond[] = {\n\n TCG_COND_NE,\n\n TCG_COND_EQ,\n\n TCG_COND_GE,\n\n TCG_COND_LT\n\n };\n\n int label = gen_new_label();\n\n tcg_gen_brcondi_i32(cond[OP2 - 8], cpu_R[RRR_T], 0, label);\n\n tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_S]);\n\n gen_set_label(label);\n\n }\n\n break;\n\n\n\n case 12: /*MOVFp*/\n\n HAS_OPTION(XTENSA_OPTION_BOOLEAN);\n\n break;\n\n\n\n case 13: /*MOVTp*/\n\n HAS_OPTION(XTENSA_OPTION_BOOLEAN);\n\n break;\n\n\n\n case 14: /*RUR*/\n\n {\n\n int st = (RRR_S << 4) + RRR_T;\n\n if (uregnames[st]) {\n\n tcg_gen_mov_i32(cpu_R[RRR_R], cpu_UR[st]);\n\n } else {\n\n qemu_log(\"RUR %d not implemented, \", st);\n\n }\n\n }\n\n break;\n\n\n\n case 15: /*WUR*/\n\n {\n\n if (uregnames[RSR_SR]) {\n\n tcg_gen_mov_i32(cpu_UR[RSR_SR], cpu_R[RRR_T]);\n\n } else {\n\n qemu_log(\"WUR %d not implemented, \", RSR_SR);\n\n }\n\n }\n\n break;\n\n\n\n }\n\n break;\n\n\n\n case 4: /*EXTUI*/\n\n case 5:\n\n {\n\n int shiftimm = RRR_S | (OP1 << 4);\n\n int maskimm = (1 << (OP2 + 1)) - 1;\n\n\n\n TCGv_i32 tmp = tcg_temp_new_i32();\n\n tcg_gen_shri_i32(tmp, cpu_R[RRR_T], shiftimm);\n\n tcg_gen_andi_i32(cpu_R[RRR_R], tmp, maskimm);\n\n tcg_temp_free(tmp);\n\n }\n\n break;\n\n\n\n case 6: /*CUST0*/\n\n break;\n\n\n\n case 7: /*CUST1*/\n\n break;\n\n\n\n case 8: /*LSCXp*/\n\n HAS_OPTION(XTENSA_OPTION_COPROCESSOR);\n\n break;\n\n\n\n case 9: /*LSC4*/\n\n break;\n\n\n\n case 10: /*FP0*/\n\n HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR);\n\n break;\n\n\n\n case 11: /*FP1*/\n\n HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR);\n\n break;\n\n\n\n default: /*reserved*/\n\n break;\n\n }\n\n break;\n\n\n\n case 1: /*L32R*/\n\n {\n\n TCGv_i32 tmp = tcg_const_i32(\n\n (0xfffc0000 | (RI16_IMM16 << 2)) +\n\n ((dc->pc + 3) & ~3));\n\n\n\n /* no ext L32R */\n\n\n\n tcg_gen_qemu_ld32u(cpu_R[RRR_T], tmp, 0);\n\n tcg_temp_free(tmp);\n\n }\n\n break;\n\n\n\n case 2: /*LSAI*/\n\n#define gen_load_store(type, shift) do { \\\n\n TCGv_i32 addr = tcg_temp_new_i32(); \\\n\n tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << shift); \\\n\n tcg_gen_qemu_##type(cpu_R[RRI8_T], addr, 0); \\\n\n tcg_temp_free(addr); \\\n\n } while (0)\n\n\n\n switch (RRI8_R) {\n\n case 0: /*L8UI*/\n\n gen_load_store(ld8u, 0);\n\n break;\n\n\n\n case 1: /*L16UI*/\n\n gen_load_store(ld16u, 1);\n\n break;\n\n\n\n case 2: /*L32I*/\n\n gen_load_store(ld32u, 2);\n\n break;\n\n\n\n case 4: /*S8I*/\n\n gen_load_store(st8, 0);\n\n break;\n\n\n\n case 5: /*S16I*/\n\n gen_load_store(st16, 1);\n\n break;\n\n\n\n case 6: /*S32I*/\n\n gen_load_store(st32, 2);\n\n break;\n\n\n\n case 7: /*CACHEc*/\n\n break;\n\n\n\n case 9: /*L16SI*/\n\n gen_load_store(ld16s, 1);\n\n break;\n\n\n\n case 10: /*MOVI*/\n\n tcg_gen_movi_i32(cpu_R[RRI8_T],\n\n RRI8_IMM8 | (RRI8_S << 8) |\n\n ((RRI8_S & 0x8) ? 0xfffff000 : 0));\n\n break;\n\n\n\n case 11: /*L32AIy*/\n\n HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO);\n\n gen_load_store(ld32u, 2); /*TODO acquire?*/\n\n break;\n\n\n\n case 12: /*ADDI*/\n\n tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S], RRI8_IMM8_SE);\n\n break;\n\n\n\n case 13: /*ADDMI*/\n\n tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S], RRI8_IMM8_SE << 8);\n\n break;\n\n\n\n case 14: /*S32C1Iy*/\n\n HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO);\n\n {\n\n int label = gen_new_label();\n\n TCGv_i32 tmp = tcg_temp_local_new_i32();\n\n TCGv_i32 addr = tcg_temp_local_new_i32();\n\n\n\n tcg_gen_mov_i32(tmp, cpu_R[RRI8_T]);\n\n tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2);\n\n tcg_gen_qemu_ld32u(cpu_R[RRI8_T], addr, 0);\n\n tcg_gen_brcond_i32(TCG_COND_NE, cpu_R[RRI8_T],\n\n cpu_SR[SCOMPARE1], label);\n\n\n\n tcg_gen_qemu_st32(tmp, addr, 0);\n\n\n\n gen_set_label(label);\n\n tcg_temp_free(addr);\n\n tcg_temp_free(tmp);\n\n }\n\n break;\n\n\n\n case 15: /*S32RIy*/\n\n HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO);\n\n gen_load_store(st32, 2); /*TODO release?*/\n\n break;\n\n\n\n default: /*reserved*/\n\n break;\n\n }\n\n break;\n\n#undef gen_load_store\n\n\n\n case 3: /*LSCIp*/\n\n HAS_OPTION(XTENSA_OPTION_COPROCESSOR);\n\n break;\n\n\n\n case 4: /*MAC16d*/\n\n HAS_OPTION(XTENSA_OPTION_MAC16);\n\n break;\n\n\n\n case 5: /*CALLN*/\n\n switch (CALL_N) {\n\n case 0: /*CALL0*/\n\n tcg_gen_movi_i32(cpu_R[0], dc->next_pc);\n\n gen_jumpi(dc, (dc->pc & ~3) + (CALL_OFFSET_SE << 2) + 4, 0);\n\n break;\n\n\n\n case 1: /*CALL4w*/\n\n case 2: /*CALL8w*/\n\n case 3: /*CALL12w*/\n\n HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);\n\n break;\n\n }\n\n break;\n\n\n\n case 6: /*SI*/\n\n switch (CALL_N) {\n\n case 0: /*J*/\n\n gen_jumpi(dc, dc->pc + 4 + CALL_OFFSET_SE, 0);\n\n break;\n\n\n\n case 1: /*BZ*/\n\n {\n\n static const TCGCond cond[] = {\n\n TCG_COND_EQ, /*BEQZ*/\n\n TCG_COND_NE, /*BNEZ*/\n\n TCG_COND_LT, /*BLTZ*/\n\n TCG_COND_GE, /*BGEZ*/\n\n };\n\n\n\n gen_brcondi(dc, cond[BRI12_M & 3], cpu_R[BRI12_S], 0,\n\n 4 + BRI12_IMM12_SE);\n\n }\n\n break;\n\n\n\n case 2: /*BI0*/\n\n {\n\n static const TCGCond cond[] = {\n\n TCG_COND_EQ, /*BEQI*/\n\n TCG_COND_NE, /*BNEI*/\n\n TCG_COND_LT, /*BLTI*/\n\n TCG_COND_GE, /*BGEI*/\n\n };\n\n\n\n gen_brcondi(dc, cond[BRI8_M & 3],\n\n cpu_R[BRI8_S], B4CONST[BRI8_R], 4 + BRI8_IMM8_SE);\n\n }\n\n break;\n\n\n\n case 3: /*BI1*/\n\n switch (BRI8_M) {\n\n case 0: /*ENTRYw*/\n\n HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);\n\n break;\n\n\n\n case 1: /*B1*/\n\n switch (BRI8_R) {\n\n case 0: /*BFp*/\n\n HAS_OPTION(XTENSA_OPTION_BOOLEAN);\n\n break;\n\n\n\n case 1: /*BTp*/\n\n HAS_OPTION(XTENSA_OPTION_BOOLEAN);\n\n break;\n\n\n\n case 8: /*LOOP*/\n\n break;\n\n\n\n case 9: /*LOOPNEZ*/\n\n break;\n\n\n\n case 10: /*LOOPGTZ*/\n\n break;\n\n\n\n default: /*reserved*/\n\n break;\n\n\n\n }\n\n break;\n\n\n\n case 2: /*BLTUI*/\n\n case 3: /*BGEUI*/\n\n gen_brcondi(dc, BRI8_M == 2 ? TCG_COND_LTU : TCG_COND_GEU,\n\n cpu_R[BRI8_S], B4CONSTU[BRI8_R], 4 + BRI8_IMM8_SE);\n\n break;\n\n }\n\n break;\n\n\n\n }\n\n break;\n\n\n\n case 7: /*B*/\n\n {\n\n TCGCond eq_ne = (RRI8_R & 8) ? TCG_COND_NE : TCG_COND_EQ;\n\n\n\n switch (RRI8_R & 7) {\n\n case 0: /*BNONE*/ /*BANY*/\n\n {\n\n TCGv_i32 tmp = tcg_temp_new_i32();\n\n tcg_gen_and_i32(tmp, cpu_R[RRI8_S], cpu_R[RRI8_T]);\n\n gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE);\n\n tcg_temp_free(tmp);\n\n }\n\n break;\n\n\n\n case 1: /*BEQ*/ /*BNE*/\n\n case 2: /*BLT*/ /*BGE*/\n\n case 3: /*BLTU*/ /*BGEU*/\n\n {\n\n static const TCGCond cond[] = {\n\n [1] = TCG_COND_EQ,\n\n [2] = TCG_COND_LT,\n\n [3] = TCG_COND_LTU,\n\n [9] = TCG_COND_NE,\n\n [10] = TCG_COND_GE,\n\n [11] = TCG_COND_GEU,\n\n };\n\n gen_brcond(dc, cond[RRI8_R], cpu_R[RRI8_S], cpu_R[RRI8_T],\n\n 4 + RRI8_IMM8_SE);\n\n }\n\n break;\n\n\n\n case 4: /*BALL*/ /*BNALL*/\n\n {\n\n TCGv_i32 tmp = tcg_temp_new_i32();\n\n tcg_gen_and_i32(tmp, cpu_R[RRI8_S], cpu_R[RRI8_T]);\n\n gen_brcond(dc, eq_ne, tmp, cpu_R[RRI8_T],\n\n 4 + RRI8_IMM8_SE);\n\n tcg_temp_free(tmp);\n\n }\n\n break;\n\n\n\n case 5: /*BBC*/ /*BBS*/\n\n {\n\n TCGv_i32 bit = tcg_const_i32(1);\n\n TCGv_i32 tmp = tcg_temp_new_i32();\n\n tcg_gen_andi_i32(tmp, cpu_R[RRI8_T], 0x1f);\n\n tcg_gen_shl_i32(bit, bit, tmp);\n\n tcg_gen_and_i32(tmp, cpu_R[RRI8_S], bit);\n\n gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE);\n\n tcg_temp_free(tmp);\n\n tcg_temp_free(bit);\n\n }\n\n break;\n\n\n\n case 6: /*BBCI*/ /*BBSI*/\n\n case 7:\n\n {\n\n TCGv_i32 tmp = tcg_temp_new_i32();\n\n tcg_gen_andi_i32(tmp, cpu_R[RRI8_S],\n\n 1 << (((RRI8_R & 1) << 4) | RRI8_T));\n\n gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE);\n\n tcg_temp_free(tmp);\n\n }\n\n break;\n\n\n\n }\n\n }\n\n break;\n\n\n\n#define gen_narrow_load_store(type) do { \\\n\n TCGv_i32 addr = tcg_temp_new_i32(); \\\n\n tcg_gen_addi_i32(addr, cpu_R[RRRN_S], RRRN_R << 2); \\\n\n tcg_gen_qemu_##type(cpu_R[RRRN_T], addr, 0); \\\n\n tcg_temp_free(addr); \\\n\n } while (0)\n\n\n\n case 8: /*L32I.Nn*/\n\n gen_narrow_load_store(ld32u);\n\n break;\n\n\n\n case 9: /*S32I.Nn*/\n\n gen_narrow_load_store(st32);\n\n break;\n\n#undef gen_narrow_load_store\n\n\n\n case 10: /*ADD.Nn*/\n\n tcg_gen_add_i32(cpu_R[RRRN_R], cpu_R[RRRN_S], cpu_R[RRRN_T]);\n\n break;\n\n\n\n case 11: /*ADDI.Nn*/\n\n tcg_gen_addi_i32(cpu_R[RRRN_R], cpu_R[RRRN_S], RRRN_T ? RRRN_T : -1);\n\n break;\n\n\n\n case 12: /*ST2n*/\n\n if (RRRN_T < 8) { /*MOVI.Nn*/\n\n tcg_gen_movi_i32(cpu_R[RRRN_S],\n\n RRRN_R | (RRRN_T << 4) |\n\n ((RRRN_T & 6) == 6 ? 0xffffff80 : 0));\n\n } else { /*BEQZ.Nn*/ /*BNEZ.Nn*/\n\n TCGCond eq_ne = (RRRN_T & 4) ? TCG_COND_NE : TCG_COND_EQ;\n\n\n\n gen_brcondi(dc, eq_ne, cpu_R[RRRN_S], 0,\n\n 4 + (RRRN_R | ((RRRN_T & 3) << 4)));\n\n }\n\n break;\n\n\n\n case 13: /*ST3n*/\n\n switch (RRRN_R) {\n\n case 0: /*MOV.Nn*/\n\n tcg_gen_mov_i32(cpu_R[RRRN_T], cpu_R[RRRN_S]);\n\n break;\n\n\n\n case 15: /*S3*/\n\n switch (RRRN_T) {\n\n case 0: /*RET.Nn*/\n\n gen_jump(dc, cpu_R[0]);\n\n break;\n\n\n\n case 1: /*RETW.Nn*/\n\n break;\n\n\n\n case 2: /*BREAK.Nn*/\n\n break;\n\n\n\n case 3: /*NOP.Nn*/\n\n break;\n\n\n\n case 6: /*ILL.Nn*/\n\n break;\n\n\n\n default: /*reserved*/\n\n break;\n\n }\n\n break;\n\n\n\n default: /*reserved*/\n\n break;\n\n }\n\n break;\n\n\n\n default: /*reserved*/\n\n break;\n\n }\n\n\n\n dc->pc = dc->next_pc;\n\n return;\n\n\n\ninvalid_opcode:\n\n qemu_log(\"INVALID(pc = %08x)\\n\", dc->pc);\n\n dc->pc = dc->next_pc;\n\n#undef HAS_OPTION\n\n}\n", + "output": "1", + "index": 24780 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int pcm_decode_frame(AVCodecContext *avctx,\n\n void *data, int *data_size,\n\n uint8_t *buf, int buf_size)\n\n{\n\n PCMDecode *s = avctx->priv_data;\n\n int c, n;\n\n short *samples;\n\n uint8_t *src, *src2[MAX_CHANNELS];\n\n\n\n samples = data;\n\n src = buf;\n\n\n\n n= av_get_bits_per_sample(avctx->codec_id)/8;\n\n if((n && buf_size % n) || avctx->channels > MAX_CHANNELS){\n\n av_log(avctx, AV_LOG_ERROR, \"invalid PCM packet\\n\");\n\n return -1;\n\n }\n\n\n\n buf_size= FFMIN(buf_size, *data_size/2);\n\n *data_size=0;\n\n\n\n n = buf_size/avctx->channels;\n\n for(c=0;cchannels;c++)\n\n src2[c] = &src[c*n];\n\n\n\n switch(avctx->codec->id) {\n\n case CODEC_ID_PCM_S32LE:\n\n decode_to16(4, 1, 0, &src, &samples, buf_size);\n\n break;\n\n case CODEC_ID_PCM_S32BE:\n\n decode_to16(4, 0, 0, &src, &samples, buf_size);\n\n break;\n\n case CODEC_ID_PCM_U32LE:\n\n decode_to16(4, 1, 1, &src, &samples, buf_size);\n\n break;\n\n case CODEC_ID_PCM_U32BE:\n\n decode_to16(4, 0, 1, &src, &samples, buf_size);\n\n break;\n\n case CODEC_ID_PCM_S24LE:\n\n decode_to16(3, 1, 0, &src, &samples, buf_size);\n\n break;\n\n case CODEC_ID_PCM_S24BE:\n\n decode_to16(3, 0, 0, &src, &samples, buf_size);\n\n break;\n\n case CODEC_ID_PCM_U24LE:\n\n decode_to16(3, 1, 1, &src, &samples, buf_size);\n\n break;\n\n case CODEC_ID_PCM_U24BE:\n\n decode_to16(3, 0, 1, &src, &samples, buf_size);\n\n break;\n\n case CODEC_ID_PCM_S24DAUD:\n\n n = buf_size / 3;\n\n for(;n>0;n--) {\n\n uint32_t v = bytestream_get_be24(&src);\n\n v >>= 4; // sync flags are here\n\n *samples++ = ff_reverse[(v >> 8) & 0xff] +\n\n (ff_reverse[v & 0xff] << 8);\n\n }\n\n break;\n\n case CODEC_ID_PCM_S16LE:\n\n n = buf_size >> 1;\n\n for(;n>0;n--) {\n\n *samples++ = bytestream_get_le16(&src);\n\n }\n\n break;\n\n case CODEC_ID_PCM_S16LE_PLANAR:\n\n for(n>>=1;n>0;n--)\n\n for(c=0;cchannels;c++)\n\n *samples++ = bytestream_get_le16(&src2[c]);\n\n src = src2[avctx->channels-1];\n\n break;\n\n case CODEC_ID_PCM_S16BE:\n\n n = buf_size >> 1;\n\n for(;n>0;n--) {\n\n *samples++ = bytestream_get_be16(&src);\n\n }\n\n break;\n\n case CODEC_ID_PCM_U16LE:\n\n n = buf_size >> 1;\n\n for(;n>0;n--) {\n\n *samples++ = bytestream_get_le16(&src) - 0x8000;\n\n }\n\n break;\n\n case CODEC_ID_PCM_U16BE:\n\n n = buf_size >> 1;\n\n for(;n>0;n--) {\n\n *samples++ = bytestream_get_be16(&src) - 0x8000;\n\n }\n\n break;\n\n case CODEC_ID_PCM_S8:\n\n n = buf_size;\n\n for(;n>0;n--) {\n\n *samples++ = *src++ << 8;\n\n }\n\n break;\n\n case CODEC_ID_PCM_U8:\n\n n = buf_size;\n\n for(;n>0;n--) {\n\n *samples++ = ((int)*src++ - 128) << 8;\n\n }\n\n break;\n\n case CODEC_ID_PCM_ZORK:\n\n n = buf_size;\n\n for(;n>0;n--) {\n\n int x= *src++;\n\n if(x&128) x-= 128;\n\n else x = -x;\n\n *samples++ = x << 8;\n\n }\n\n break;\n\n case CODEC_ID_PCM_ALAW:\n\n case CODEC_ID_PCM_MULAW:\n\n n = buf_size;\n\n for(;n>0;n--) {\n\n *samples++ = s->table[*src++];\n\n }\n\n break;\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": 4805 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "unsigned int DoubleCPDO(const unsigned int opcode)\n\n{\n\n FPA11 *fpa11 = GET_FPA11();\n\n float64 rFm, rFn = 0;\n\n unsigned int Fd, Fm, Fn, nRc = 1;\n\n\n\n //printk(\"DoubleCPDO(0x%08x)\\n\",opcode);\n\n\n\n Fm = getFm(opcode);\n\n if (CONSTANT_FM(opcode))\n\n {\n\n rFm = getDoubleConstant(Fm);\n\n }\n\n else\n\n {\n\n switch (fpa11->fType[Fm])\n\n {\n\n case typeSingle:\n\n rFm = float32_to_float64(fpa11->fpreg[Fm].fSingle, &fpa11->fp_status);\n\n break;\n\n\n\n case typeDouble:\n\n rFm = fpa11->fpreg[Fm].fDouble;\n\n break;\n\n\n\n case typeExtended:\n\n // !! patb\n\n\t //printk(\"not implemented! why not?\\n\");\n\n //!! ScottB\n\n // should never get here, if extended involved\n\n // then other operand should be promoted then\n\n // ExtendedCPDO called.\n\n break;\n\n\n\n default: return 0;\n\n }\n\n }\n\n\n\n if (!MONADIC_INSTRUCTION(opcode))\n\n {\n\n Fn = getFn(opcode);\n\n switch (fpa11->fType[Fn])\n\n {\n\n case typeSingle:\n\n rFn = float32_to_float64(fpa11->fpreg[Fn].fSingle, &fpa11->fp_status);\n\n break;\n\n\n\n case typeDouble:\n\n rFn = fpa11->fpreg[Fn].fDouble;\n\n break;\n\n\n\n default: return 0;\n\n }\n\n }\n\n\n\n Fd = getFd(opcode);\n\n /* !! this switch isn't optimized; better (opcode & MASK_ARITHMETIC_OPCODE)>>24, sort of */\n\n switch (opcode & MASK_ARITHMETIC_OPCODE)\n\n {\n\n /* dyadic opcodes */\n\n case ADF_CODE:\n\n fpa11->fpreg[Fd].fDouble = float64_add(rFn,rFm, &fpa11->fp_status);\n\n break;\n\n\n\n case MUF_CODE:\n\n case FML_CODE:\n\n fpa11->fpreg[Fd].fDouble = float64_mul(rFn,rFm, &fpa11->fp_status);\n\n break;\n\n\n\n case SUF_CODE:\n\n fpa11->fpreg[Fd].fDouble = float64_sub(rFn,rFm, &fpa11->fp_status);\n\n break;\n\n\n\n case RSF_CODE:\n\n fpa11->fpreg[Fd].fDouble = float64_sub(rFm,rFn, &fpa11->fp_status);\n\n break;\n\n\n\n case DVF_CODE:\n\n case FDV_CODE:\n\n fpa11->fpreg[Fd].fDouble = float64_div(rFn,rFm, &fpa11->fp_status);\n\n break;\n\n\n\n case RDF_CODE:\n\n case FRD_CODE:\n\n fpa11->fpreg[Fd].fDouble = float64_div(rFm,rFn, &fpa11->fp_status);\n\n break;\n\n\n\n#if 0\n\n case POW_CODE:\n\n fpa11->fpreg[Fd].fDouble = float64_pow(rFn,rFm);\n\n break;\n\n\n\n case RPW_CODE:\n\n fpa11->fpreg[Fd].fDouble = float64_pow(rFm,rFn);\n\n break;\n\n#endif\n\n\n\n case RMF_CODE:\n\n fpa11->fpreg[Fd].fDouble = float64_rem(rFn,rFm, &fpa11->fp_status);\n\n break;\n\n\n\n#if 0\n\n case POL_CODE:\n\n fpa11->fpreg[Fd].fDouble = float64_pol(rFn,rFm);\n\n break;\n\n#endif\n\n\n\n /* monadic opcodes */\n\n case MVF_CODE:\n\n fpa11->fpreg[Fd].fDouble = rFm;\n\n break;\n\n\n\n case MNF_CODE:\n\n {\n\n unsigned int *p = (unsigned int*)&rFm;\n\n#ifdef WORDS_BIGENDIAN\n\n p[0] ^= 0x80000000;\n\n#else\n\n p[1] ^= 0x80000000;\n\n#endif\n\n fpa11->fpreg[Fd].fDouble = rFm;\n\n }\n\n break;\n\n\n\n case ABS_CODE:\n\n {\n\n unsigned int *p = (unsigned int*)&rFm;\n\n#ifdef WORDS_BIGENDIAN\n\n p[0] &= 0x7fffffff;\n\n#else\n\n p[1] &= 0x7fffffff;\n\n#endif\n\n fpa11->fpreg[Fd].fDouble = rFm;\n\n }\n\n break;\n\n\n\n case RND_CODE:\n\n case URD_CODE:\n\n fpa11->fpreg[Fd].fDouble = float64_round_to_int(rFm, &fpa11->fp_status);\n\n break;\n\n\n\n case SQT_CODE:\n\n fpa11->fpreg[Fd].fDouble = float64_sqrt(rFm, &fpa11->fp_status);\n\n break;\n\n\n\n#if 0\n\n case LOG_CODE:\n\n fpa11->fpreg[Fd].fDouble = float64_log(rFm);\n\n break;\n\n\n\n case LGN_CODE:\n\n fpa11->fpreg[Fd].fDouble = float64_ln(rFm);\n\n break;\n\n\n\n case EXP_CODE:\n\n fpa11->fpreg[Fd].fDouble = float64_exp(rFm);\n\n break;\n\n\n\n case SIN_CODE:\n\n fpa11->fpreg[Fd].fDouble = float64_sin(rFm);\n\n break;\n\n\n\n case COS_CODE:\n\n fpa11->fpreg[Fd].fDouble = float64_cos(rFm);\n\n break;\n\n\n\n case TAN_CODE:\n\n fpa11->fpreg[Fd].fDouble = float64_tan(rFm);\n\n break;\n\n\n\n case ASN_CODE:\n\n fpa11->fpreg[Fd].fDouble = float64_arcsin(rFm);\n\n break;\n\n\n\n case ACS_CODE:\n\n fpa11->fpreg[Fd].fDouble = float64_arccos(rFm);\n\n break;\n\n\n\n case ATN_CODE:\n\n fpa11->fpreg[Fd].fDouble = float64_arctan(rFm);\n\n break;\n\n#endif\n\n\n\n case NRM_CODE:\n\n break;\n\n\n\n default:\n\n {\n\n nRc = 0;\n\n }\n\n }\n\n\n\n if (0 != nRc) fpa11->fType[Fd] = typeDouble;\n\n return nRc;\n\n}\n", + "output": "0", + "index": 12435 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int dpcm_decode_frame(AVCodecContext *avctx, void *data,\n\n int *got_frame_ptr, AVPacket *avpkt)\n\n{\n\n const uint8_t *buf = avpkt->data;\n\n int buf_size = avpkt->size;\n\n const uint8_t *buf_end = buf + buf_size;\n\n DPCMContext *s = avctx->priv_data;\n\n int out = 0, ret;\n\n int predictor[2];\n\n int ch = 0;\n\n int stereo = s->channels - 1;\n\n int16_t *output_samples;\n\n\n\n /* calculate output size */\n\n switch(avctx->codec->id) {\n\n case CODEC_ID_ROQ_DPCM:\n\n out = buf_size - 8;\n\n break;\n\n case CODEC_ID_INTERPLAY_DPCM:\n\n out = buf_size - 6 - s->channels;\n\n break;\n\n case CODEC_ID_XAN_DPCM:\n\n out = buf_size - 2 * s->channels;\n\n break;\n\n case CODEC_ID_SOL_DPCM:\n\n if (avctx->codec_tag != 3)\n\n out = buf_size * 2;\n\n else\n\n out = buf_size;\n\n break;\n\n }\n\n if (out <= 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"packet is too small\\n\");\n\n return AVERROR(EINVAL);\n\n }\n\n\n\n /* get output buffer */\n\n s->frame.nb_samples = out / s->channels;\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 output_samples = (int16_t *)s->frame.data[0];\n\n\n\n switch(avctx->codec->id) {\n\n\n\n case CODEC_ID_ROQ_DPCM:\n\n buf += 6;\n\n\n\n if (stereo) {\n\n predictor[1] = (int16_t)(bytestream_get_byte(&buf) << 8);\n\n predictor[0] = (int16_t)(bytestream_get_byte(&buf) << 8);\n\n } else {\n\n predictor[0] = (int16_t)bytestream_get_le16(&buf);\n\n }\n\n\n\n /* decode the samples */\n\n while (buf < buf_end) {\n\n predictor[ch] += s->roq_square_array[*buf++];\n\n predictor[ch] = av_clip_int16(predictor[ch]);\n\n *output_samples++ = predictor[ch];\n\n\n\n /* toggle channel */\n\n ch ^= stereo;\n\n }\n\n break;\n\n\n\n case CODEC_ID_INTERPLAY_DPCM:\n\n buf += 6; /* skip over the stream mask and stream length */\n\n\n\n for (ch = 0; ch < s->channels; ch++) {\n\n predictor[ch] = (int16_t)bytestream_get_le16(&buf);\n\n *output_samples++ = predictor[ch];\n\n }\n\n\n\n ch = 0;\n\n while (buf < buf_end) {\n\n predictor[ch] += interplay_delta_table[*buf++];\n\n predictor[ch] = av_clip_int16(predictor[ch]);\n\n *output_samples++ = predictor[ch];\n\n\n\n /* toggle channel */\n\n ch ^= stereo;\n\n }\n\n break;\n\n\n\n case CODEC_ID_XAN_DPCM:\n\n {\n\n int shift[2] = { 4, 4 };\n\n\n\n for (ch = 0; ch < s->channels; ch++)\n\n predictor[ch] = (int16_t)bytestream_get_le16(&buf);\n\n\n\n ch = 0;\n\n while (buf < buf_end) {\n\n uint8_t n = *buf++;\n\n int16_t diff = (n & 0xFC) << 8;\n\n if ((n & 0x03) == 3)\n\n shift[ch]++;\n\n else\n\n shift[ch] -= (2 * (n & 3));\n\n /* saturate the shifter to a lower limit of 0 */\n\n if (shift[ch] < 0)\n\n shift[ch] = 0;\n\n\n\n diff >>= shift[ch];\n\n predictor[ch] += diff;\n\n\n\n predictor[ch] = av_clip_int16(predictor[ch]);\n\n *output_samples++ = predictor[ch];\n\n\n\n /* toggle channel */\n\n ch ^= stereo;\n\n }\n\n break;\n\n }\n\n case CODEC_ID_SOL_DPCM:\n\n if (avctx->codec_tag != 3) {\n\n uint8_t *output_samples_u8 = data;\n\n while (buf < buf_end) {\n\n uint8_t n = *buf++;\n\n\n\n s->sample[0] += s->sol_table[n >> 4];\n\n s->sample[0] = av_clip_uint8(s->sample[0]);\n\n *output_samples_u8++ = s->sample[0];\n\n\n\n s->sample[stereo] += s->sol_table[n & 0x0F];\n\n s->sample[stereo] = av_clip_uint8(s->sample[stereo]);\n\n *output_samples_u8++ = s->sample[stereo];\n\n }\n\n } else {\n\n while (buf < buf_end) {\n\n uint8_t n = *buf++;\n\n if (n & 0x80) s->sample[ch] -= sol_table_16[n & 0x7F];\n\n else s->sample[ch] += sol_table_16[n & 0x7F];\n\n s->sample[ch] = av_clip_int16(s->sample[ch]);\n\n *output_samples++ = s->sample[ch];\n\n /* toggle channel */\n\n ch ^= stereo;\n\n }\n\n }\n\n break;\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": "1", + "index": 24797 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static ssize_t sdp_svc_search_attr_get(struct bt_l2cap_sdp_state_s *sdp,\n\n uint8_t *rsp, const uint8_t *req, ssize_t len)\n\n{\n\n ssize_t seqlen;\n\n int i, j, start, end, max;\n\n struct sdp_service_record_s *record;\n\n uint8_t *lst;\n\n\n\n /* Perform the search */\n\n for (i = 0; i < sdp->services; i ++) {\n\n sdp->service_list[i].match = 0;\n\n for (j = 0; j < sdp->service_list[i].attributes; j ++)\n\n sdp->service_list[i].attribute_list[j].match = 0;\n\n }\n\n\n\n if (len < 1)\n\n return -SDP_INVALID_SYNTAX;\n\n if ((*req & ~SDP_DSIZE_MASK) == SDP_DTYPE_SEQ) {\n\n seqlen = sdp_datalen(&req, &len);\n\n if (seqlen < 3 || len < seqlen)\n\n return -SDP_INVALID_SYNTAX;\n\n len -= seqlen;\n\n\n\n while (seqlen)\n\n if (sdp_svc_match(sdp, &req, &seqlen))\n\n return -SDP_INVALID_SYNTAX;\n\n } else if (sdp_svc_match(sdp, &req, &seqlen))\n\n return -SDP_INVALID_SYNTAX;\n\n\n\n if (len < 3)\n\n return -SDP_INVALID_SYNTAX;\n\n max = (req[0] << 8) | req[1];\n\n req += 2;\n\n len -= 2;\n\n if (max < 0x0007)\n\n return -SDP_INVALID_SYNTAX;\n\n\n\n if ((*req & ~SDP_DSIZE_MASK) == SDP_DTYPE_SEQ) {\n\n seqlen = sdp_datalen(&req, &len);\n\n if (seqlen < 3 || len < seqlen)\n\n return -SDP_INVALID_SYNTAX;\n\n len -= seqlen;\n\n\n\n while (seqlen)\n\n if (sdp_svc_attr_match(sdp, &req, &seqlen))\n\n return -SDP_INVALID_SYNTAX;\n\n } else if (sdp_svc_attr_match(sdp, &req, &seqlen))\n\n return -SDP_INVALID_SYNTAX;\n\n\n\n if (len < 1)\n\n return -SDP_INVALID_SYNTAX;\n\n\n\n if (*req) {\n\n if (len <= sizeof(int))\n\n return -SDP_INVALID_SYNTAX;\n\n len -= sizeof(int);\n\n memcpy(&start, req + 1, sizeof(int));\n\n } else\n\n start = 0;\n\n\n\n if (len > 1)\n\n return -SDP_INVALID_SYNTAX;\n\n\n\n /* Output the results */\n\n /* This assumes empty attribute lists are never to be returned even\n\n * for matching Service Records. In practice this shouldn't happen\n\n * as the requestor will usually include the always present\n\n * ServiceRecordHandle AttributeID in AttributeIDList. */\n\n lst = rsp + 2;\n\n max = MIN(max, MAX_RSP_PARAM_SIZE);\n\n len = 3 - start;\n\n end = 0;\n\n for (i = 0; i < sdp->services; i ++)\n\n if ((record = &sdp->service_list[i])->match) {\n\n len += 3;\n\n seqlen = len;\n\n for (j = 0; j < record->attributes; j ++)\n\n if (record->attribute_list[j].match) {\n\n if (len >= 0)\n\n if (len + record->attribute_list[j].len < max) {\n\n memcpy(lst + len, record->attribute_list[j].pair,\n\n record->attribute_list[j].len);\n\n end = len + record->attribute_list[j].len;\n\n }\n\n len += record->attribute_list[j].len;\n\n }\n\n if (seqlen == len)\n\n len -= 3;\n\n else if (seqlen >= 3 && seqlen < max) {\n\n lst[seqlen - 3] = SDP_DTYPE_SEQ | SDP_DSIZE_NEXT2;\n\n lst[seqlen - 2] = (len - seqlen) >> 8;\n\n lst[seqlen - 1] = (len - seqlen) & 0xff;\n\n }\n\n }\n\n if (len == 3 - start)\n\n len -= 3;\n\n else if (0 >= start) {\n\n lst[0] = SDP_DTYPE_SEQ | SDP_DSIZE_NEXT2;\n\n lst[1] = (len + start - 3) >> 8;\n\n lst[2] = (len + start - 3) & 0xff;\n\n }\n\n\n\n rsp[0] = end >> 8;\n\n rsp[1] = end & 0xff;\n\n\n\n if (end < len) {\n\n len = end + start;\n\n lst[end ++] = sizeof(int);\n\n memcpy(lst + end, &len, sizeof(int));\n\n end += sizeof(int);\n\n } else\n\n lst[end ++] = 0;\n\n\n\n return end + 2;\n\n}\n", + "output": "1", + "index": 13483 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int libschroedinger_encode_frame(AVCodecContext *avctx, AVPacket *pkt,\n\n const AVFrame *frame, int *got_packet)\n\n{\n\n int enc_size = 0;\n\n SchroEncoderParams *p_schro_params = avctx->priv_data;\n\n SchroEncoder *encoder = p_schro_params->encoder;\n\n struct FFSchroEncodedFrame *p_frame_output = NULL;\n\n int go = 1;\n\n SchroBuffer *enc_buf;\n\n int presentation_frame;\n\n int parse_code;\n\n int last_frame_in_sequence = 0;\n\n int pkt_size, ret;\n\n\n\n if (!frame) {\n\n /* Push end of sequence if not already signalled. */\n\n if (!p_schro_params->eos_signalled) {\n\n schro_encoder_end_of_stream(encoder);\n\n p_schro_params->eos_signalled = 1;\n\n }\n\n } else {\n\n /* Allocate frame data to schro input buffer. */\n\n SchroFrame *in_frame = libschroedinger_frame_from_data(avctx, frame);\n\n if (!in_frame)\n\n return AVERROR(ENOMEM);\n\n /* Load next frame. */\n\n schro_encoder_push_frame(encoder, in_frame);\n\n }\n\n\n\n if (p_schro_params->eos_pulled)\n\n go = 0;\n\n\n\n /* Now check to see if we have any output from the encoder. */\n\n while (go) {\n\n int err;\n\n SchroStateEnum state;\n\n state = schro_encoder_wait(encoder);\n\n switch (state) {\n\n case SCHRO_STATE_HAVE_BUFFER:\n\n case SCHRO_STATE_END_OF_STREAM:\n\n enc_buf = schro_encoder_pull(encoder, &presentation_frame);\n\n if (enc_buf->length <= 0)\n\n return AVERROR_BUG;\n\n parse_code = enc_buf->data[4];\n\n\n\n /* All non-frame data is prepended to actual frame data to\n\n * be able to set the pts correctly. So we don't write data\n\n * to the frame output queue until we actually have a frame\n\n */\n\n if ((err = av_reallocp(&p_schro_params->enc_buf,\n\n p_schro_params->enc_buf_size +\n\n enc_buf->length)) < 0) {\n\n p_schro_params->enc_buf_size = 0;\n\n return err;\n\n }\n\n\n\n memcpy(p_schro_params->enc_buf + p_schro_params->enc_buf_size,\n\n enc_buf->data, enc_buf->length);\n\n p_schro_params->enc_buf_size += enc_buf->length;\n\n\n\n\n\n if (state == SCHRO_STATE_END_OF_STREAM) {\n\n p_schro_params->eos_pulled = 1;\n\n go = 0;\n\n }\n\n\n\n if (!SCHRO_PARSE_CODE_IS_PICTURE(parse_code)) {\n\n schro_buffer_unref(enc_buf);\n\n break;\n\n }\n\n\n\n /* Create output frame. */\n\n p_frame_output = av_mallocz(sizeof(FFSchroEncodedFrame));\n\n if (!p_frame_output)\n\n return AVERROR(ENOMEM);\n\n /* Set output data. */\n\n p_frame_output->size = p_schro_params->enc_buf_size;\n\n p_frame_output->p_encbuf = p_schro_params->enc_buf;\n\n if (SCHRO_PARSE_CODE_IS_INTRA(parse_code) &&\n\n SCHRO_PARSE_CODE_IS_REFERENCE(parse_code))\n\n p_frame_output->key_frame = 1;\n\n\n\n /* Parse the coded frame number from the bitstream. Bytes 14\n\n * through 17 represent the frame number. */\n\n p_frame_output->frame_num = AV_RB32(enc_buf->data + 13);\n\n\n\n ff_schro_queue_push_back(&p_schro_params->enc_frame_queue,\n\n p_frame_output);\n\n p_schro_params->enc_buf_size = 0;\n\n p_schro_params->enc_buf = NULL;\n\n\n\n schro_buffer_unref(enc_buf);\n\n\n\n break;\n\n\n\n case SCHRO_STATE_NEED_FRAME:\n\n go = 0;\n\n break;\n\n\n\n case SCHRO_STATE_AGAIN:\n\n break;\n\n\n\n default:\n\n av_log(avctx, AV_LOG_ERROR, \"Unknown Schro Encoder state\\n\");\n\n return -1;\n\n }\n\n }\n\n\n\n /* Copy 'next' frame in queue. */\n\n\n\n if (p_schro_params->enc_frame_queue.size == 1 &&\n\n p_schro_params->eos_pulled)\n\n last_frame_in_sequence = 1;\n\n\n\n p_frame_output = ff_schro_queue_pop(&p_schro_params->enc_frame_queue);\n\n\n\n if (!p_frame_output)\n\n return 0;\n\n\n\n pkt_size = p_frame_output->size;\n\n if (last_frame_in_sequence && p_schro_params->enc_buf_size > 0)\n\n pkt_size += p_schro_params->enc_buf_size;\n\n if ((ret = ff_alloc_packet2(avctx, pkt, pkt_size, 0)) < 0)\n\n goto error;\n\n\n\n memcpy(pkt->data, p_frame_output->p_encbuf, p_frame_output->size);\n\n#if FF_API_CODED_FRAME\n\nFF_DISABLE_DEPRECATION_WARNINGS\n\n avctx->coded_frame->key_frame = p_frame_output->key_frame;\n\n avctx->coded_frame->pts = p_frame_output->frame_num;\n\nFF_ENABLE_DEPRECATION_WARNINGS\n\n#endif\n\n /* Use the frame number of the encoded frame as the pts. It is OK to\n\n * do so since Dirac is a constant frame rate codec. It expects input\n\n * to be of constant frame rate. */\n\n pkt->pts = p_frame_output->frame_num;\n\n pkt->dts = p_schro_params->dts++;\n\n enc_size = p_frame_output->size;\n\n\n\n /* Append the end of sequence information to the last frame in the\n\n * sequence. */\n\n if (last_frame_in_sequence && p_schro_params->enc_buf_size > 0) {\n\n memcpy(pkt->data + enc_size, p_schro_params->enc_buf,\n\n p_schro_params->enc_buf_size);\n\n enc_size += p_schro_params->enc_buf_size;\n\n av_freep(&p_schro_params->enc_buf);\n\n p_schro_params->enc_buf_size = 0;\n\n }\n\n\n\n if (p_frame_output->key_frame)\n\n pkt->flags |= AV_PKT_FLAG_KEY;\n\n *got_packet = 1;\n\n\n\nerror:\n\n /* free frame */\n\n libschroedinger_free_frame(p_frame_output);\n\n return ret;\n\n}\n", + "output": "1", + "index": 21917 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static inline void RENAME(uyvytoyv12)(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst,\n\n\tlong width, long height,\n\n\tlong lumStride, long chromStride, long srcStride)\n\n{\n\n\tlong y;\n\n\tconst long chromWidth= width>>1;\n\n\tfor(y=0; ypriv_data;\n\n int ret;\n\n AVFrame *pict = data;\n\n\n\n#ifdef PRINT_FRAME_TIME\n\nuint64_t time= rdtsc();\n\n#endif\n\n#ifdef DEBUG\n\n av_log(avctx, AV_LOG_DEBUG, \"*****frame %d size=%d\\n\", avctx->frame_number, buf_size);\n\n if(buf_size>0)\n\n av_log(avctx, AV_LOG_DEBUG, \"bytes=%x %x %x %x\\n\", buf[0], buf[1], buf[2], buf[3]);\n\n#endif\n\n s->flags= avctx->flags;\n\n s->flags2= avctx->flags2;\n\n\n\n /* no supplementary picture */\n\n if (buf_size == 0) {\n\n /* special case for last picture */\n\n if (s->low_delay==0 && s->next_picture_ptr) {\n\n *pict= *(AVFrame*)s->next_picture_ptr;\n\n s->next_picture_ptr= NULL;\n\n\n\n *data_size = sizeof(AVFrame);\n\n }\n\n\n\n return 0;\n\n }\n\n\n\n if(s->flags&CODEC_FLAG_TRUNCATED){\n\n int next;\n\n\n\n if(CONFIG_MPEG4_DECODER && s->codec_id==CODEC_ID_MPEG4){\n\n next= ff_mpeg4_find_frame_end(&s->parse_context, buf, buf_size);\n\n }else if(CONFIG_H263_DECODER && s->codec_id==CODEC_ID_H263){\n\n next= ff_h263_find_frame_end(&s->parse_context, buf, buf_size);\n\n }else{\n\n av_log(s->avctx, AV_LOG_ERROR, \"this codec does not support truncated bitstreams\\n\");\n\n return -1;\n\n }\n\n\n\n if( ff_combine_frame(&s->parse_context, next, (const uint8_t **)&buf, &buf_size) < 0 )\n\n return buf_size;\n\n }\n\n\n\n\n\nretry:\n\n\n\n if(s->bitstream_buffer_size && (s->divx_packed || buf_size<20)){ //divx 5.01+/xvid frame reorder\n\n init_get_bits(&s->gb, s->bitstream_buffer, s->bitstream_buffer_size*8);\n\n }else\n\n init_get_bits(&s->gb, buf, buf_size*8);\n\n s->bitstream_buffer_size=0;\n\n\n\n if (!s->context_initialized) {\n\n if (MPV_common_init(s) < 0) //we need the idct permutaton for reading a custom matrix\n\n return -1;\n\n }\n\n\n\n /* We need to set current_picture_ptr before reading the header,\n\n * otherwise we cannot store anyting in there */\n\n if(s->current_picture_ptr==NULL || s->current_picture_ptr->data[0]){\n\n int i= ff_find_unused_picture(s, 0);\n\n s->current_picture_ptr= &s->picture[i];\n\n }\n\n\n\n /* let's go :-) */\n\n if (CONFIG_WMV2_DECODER && s->msmpeg4_version==5) {\n\n ret= ff_wmv2_decode_picture_header(s);\n\n } else if (CONFIG_MSMPEG4_DECODER && s->msmpeg4_version) {\n\n ret = msmpeg4_decode_picture_header(s);\n\n } else if (s->h263_pred) {\n\n if(s->avctx->extradata_size && s->picture_number==0){\n\n GetBitContext gb;\n\n\n\n init_get_bits(&gb, s->avctx->extradata, s->avctx->extradata_size*8);\n\n ret = ff_mpeg4_decode_picture_header(s, &gb);\n\n }\n\n ret = ff_mpeg4_decode_picture_header(s, &s->gb);\n\n } else if (s->codec_id == CODEC_ID_H263I) {\n\n ret = intel_h263_decode_picture_header(s);\n\n } else if (s->h263_flv) {\n\n ret = flv_h263_decode_picture_header(s);\n\n } else {\n\n ret = h263_decode_picture_header(s);\n\n }\n\n\n\n if(ret==FRAME_SKIPPED) return get_consumed_bytes(s, buf_size);\n\n\n\n /* skip if the header was thrashed */\n\n if (ret < 0){\n\n av_log(s->avctx, AV_LOG_ERROR, \"header damaged\\n\");\n\n return -1;\n\n }\n\n\n\n avctx->has_b_frames= !s->low_delay;\n\n\n\n if(s->xvid_build==0 && s->divx_version==0 && s->lavc_build==0){\n\n if(s->stream_codec_tag == AV_RL32(\"XVID\") ||\n\n s->codec_tag == AV_RL32(\"XVID\") || s->codec_tag == AV_RL32(\"XVIX\") ||\n\n s->codec_tag == AV_RL32(\"RMP4\"))\n\n s->xvid_build= -1;\n\n#if 0\n\n if(s->codec_tag == AV_RL32(\"DIVX\") && s->vo_type==0 && s->vol_control_parameters==1\n\n && s->padding_bug_score > 0 && s->low_delay) // XVID with modified fourcc\n\n s->xvid_build= -1;\n\n#endif\n\n }\n\n\n\n if(s->xvid_build==0 && s->divx_version==0 && s->lavc_build==0){\n\n if(s->codec_tag == AV_RL32(\"DIVX\") && s->vo_type==0 && s->vol_control_parameters==0)\n\n s->divx_version= 400; //divx 4\n\n }\n\n\n\n if(s->xvid_build && s->divx_version){\n\n s->divx_version=\n\n s->divx_build= 0;\n\n }\n\n\n\n if(s->workaround_bugs&FF_BUG_AUTODETECT){\n\n if(s->codec_tag == AV_RL32(\"XVIX\"))\n\n s->workaround_bugs|= FF_BUG_XVID_ILACE;\n\n\n\n if(s->codec_tag == AV_RL32(\"UMP4\")){\n\n s->workaround_bugs|= FF_BUG_UMP4;\n\n }\n\n\n\n if(s->divx_version>=500 && s->divx_build<1814){\n\n s->workaround_bugs|= FF_BUG_QPEL_CHROMA;\n\n }\n\n\n\n if(s->divx_version>502 && s->divx_build<1814){\n\n s->workaround_bugs|= FF_BUG_QPEL_CHROMA2;\n\n }\n\n\n\n if(s->xvid_build && s->xvid_build<=3)\n\n s->padding_bug_score= 256*256*256*64;\n\n\n\n if(s->xvid_build && s->xvid_build<=1)\n\n s->workaround_bugs|= FF_BUG_QPEL_CHROMA;\n\n\n\n if(s->xvid_build && s->xvid_build<=12)\n\n s->workaround_bugs|= FF_BUG_EDGE;\n\n\n\n if(s->xvid_build && s->xvid_build<=32)\n\n s->workaround_bugs|= FF_BUG_DC_CLIP;\n\n\n\n#define SET_QPEL_FUNC(postfix1, postfix2) \\\n\n s->dsp.put_ ## postfix1 = ff_put_ ## postfix2;\\\n\n s->dsp.put_no_rnd_ ## postfix1 = ff_put_no_rnd_ ## postfix2;\\\n\n s->dsp.avg_ ## postfix1 = ff_avg_ ## postfix2;\n\n\n\n if(s->lavc_build && s->lavc_build<4653)\n\n s->workaround_bugs|= FF_BUG_STD_QPEL;\n\n\n\n if(s->lavc_build && s->lavc_build<4655)\n\n s->workaround_bugs|= FF_BUG_DIRECT_BLOCKSIZE;\n\n\n\n if(s->lavc_build && s->lavc_build<4670){\n\n s->workaround_bugs|= FF_BUG_EDGE;\n\n }\n\n\n\n if(s->lavc_build && s->lavc_build<=4712)\n\n s->workaround_bugs|= FF_BUG_DC_CLIP;\n\n\n\n if(s->divx_version)\n\n s->workaround_bugs|= FF_BUG_DIRECT_BLOCKSIZE;\n\n//printf(\"padding_bug_score: %d\\n\", s->padding_bug_score);\n\n if(s->divx_version==501 && s->divx_build==20020416)\n\n s->padding_bug_score= 256*256*256*64;\n\n\n\n if(s->divx_version && s->divx_version<500){\n\n s->workaround_bugs|= FF_BUG_EDGE;\n\n }\n\n\n\n if(s->divx_version)\n\n s->workaround_bugs|= FF_BUG_HPEL_CHROMA;\n\n#if 0\n\n if(s->divx_version==500)\n\n s->padding_bug_score= 256*256*256*64;\n\n\n\n /* very ugly XVID padding bug detection FIXME/XXX solve this differently\n\n * Let us hope this at least works.\n\n */\n\n if( s->resync_marker==0 && s->data_partitioning==0 && s->divx_version==0\n\n && s->codec_id==CODEC_ID_MPEG4 && s->vo_type==0)\n\n s->workaround_bugs|= FF_BUG_NO_PADDING;\n\n\n\n if(s->lavc_build && s->lavc_build<4609) //FIXME not sure about the version num but a 4609 file seems ok\n\n s->workaround_bugs|= FF_BUG_NO_PADDING;\n\n#endif\n\n }\n\n\n\n if(s->workaround_bugs& FF_BUG_STD_QPEL){\n\n SET_QPEL_FUNC(qpel_pixels_tab[0][ 5], qpel16_mc11_old_c)\n\n SET_QPEL_FUNC(qpel_pixels_tab[0][ 7], qpel16_mc31_old_c)\n\n SET_QPEL_FUNC(qpel_pixels_tab[0][ 9], qpel16_mc12_old_c)\n\n SET_QPEL_FUNC(qpel_pixels_tab[0][11], qpel16_mc32_old_c)\n\n SET_QPEL_FUNC(qpel_pixels_tab[0][13], qpel16_mc13_old_c)\n\n SET_QPEL_FUNC(qpel_pixels_tab[0][15], qpel16_mc33_old_c)\n\n\n\n SET_QPEL_FUNC(qpel_pixels_tab[1][ 5], qpel8_mc11_old_c)\n\n SET_QPEL_FUNC(qpel_pixels_tab[1][ 7], qpel8_mc31_old_c)\n\n SET_QPEL_FUNC(qpel_pixels_tab[1][ 9], qpel8_mc12_old_c)\n\n SET_QPEL_FUNC(qpel_pixels_tab[1][11], qpel8_mc32_old_c)\n\n SET_QPEL_FUNC(qpel_pixels_tab[1][13], qpel8_mc13_old_c)\n\n SET_QPEL_FUNC(qpel_pixels_tab[1][15], qpel8_mc33_old_c)\n\n }\n\n\n\n if(avctx->debug & FF_DEBUG_BUGS)\n\n av_log(s->avctx, AV_LOG_DEBUG, \"bugs: %X lavc_build:%d xvid_build:%d divx_version:%d divx_build:%d %s\\n\",\n\n s->workaround_bugs, s->lavc_build, s->xvid_build, s->divx_version, s->divx_build,\n\n s->divx_packed ? \"p\" : \"\");\n\n\n\n#if 0 // dump bits per frame / qp / complexity\n\n{\n\n static FILE *f=NULL;\n\n if(!f) f=fopen(\"rate_qp_cplx.txt\", \"w\");\n\n fprintf(f, \"%d %d %f\\n\", buf_size, s->qscale, buf_size*(double)s->qscale);\n\n}\n\n#endif\n\n\n\n#if HAVE_MMX\n\n if(s->codec_id == CODEC_ID_MPEG4 && s->xvid_build && avctx->idct_algo == FF_IDCT_AUTO && (mm_flags & FF_MM_MMX)){\n\n avctx->idct_algo= FF_IDCT_XVIDMMX;\n\n avctx->coded_width= 0; // force reinit\n\n// dsputil_init(&s->dsp, avctx);\n\n s->picture_number=0;\n\n }\n\n#endif\n\n\n\n /* After H263 & mpeg4 header decode we have the height, width,*/\n\n /* and other parameters. So then we could init the picture */\n\n /* FIXME: By the way H263 decoder is evolving it should have */\n\n /* an H263EncContext */\n\n\n\n if ( s->width != avctx->coded_width\n\n || s->height != avctx->coded_height) {\n\n /* H.263 could change picture size any time */\n\n ParseContext pc= s->parse_context; //FIXME move these demuxng hack to avformat\n\n s->parse_context.buffer=0;\n\n MPV_common_end(s);\n\n s->parse_context= pc;\n\n }\n\n if (!s->context_initialized) {\n\n avcodec_set_dimensions(avctx, s->width, s->height);\n\n\n\n goto retry;\n\n }\n\n\n\n if((s->codec_id==CODEC_ID_H263 || s->codec_id==CODEC_ID_H263P))\n\n s->gob_index = ff_h263_get_gob_height(s);\n\n\n\n // for hurry_up==5\n\n s->current_picture.pict_type= s->pict_type;\n\n s->current_picture.key_frame= s->pict_type == FF_I_TYPE;\n\n\n\n /* skip B-frames if we don't have reference frames */\n\n if(s->last_picture_ptr==NULL && (s->pict_type==FF_B_TYPE || s->dropable)) return get_consumed_bytes(s, buf_size);\n\n /* skip b frames if we are in a hurry */\n\n if(avctx->hurry_up && s->pict_type==FF_B_TYPE) return get_consumed_bytes(s, buf_size);\n\n if( (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type==FF_B_TYPE)\n\n || (avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type!=FF_I_TYPE)\n\n || avctx->skip_frame >= AVDISCARD_ALL)\n\n return get_consumed_bytes(s, buf_size);\n\n /* skip everything if we are in a hurry>=5 */\n\n if(avctx->hurry_up>=5) return get_consumed_bytes(s, buf_size);\n\n\n\n if(s->next_p_frame_damaged){\n\n if(s->pict_type==FF_B_TYPE)\n\n return get_consumed_bytes(s, buf_size);\n\n else\n\n s->next_p_frame_damaged=0;\n\n }\n\n\n\n if((s->avctx->flags2 & CODEC_FLAG2_FAST) && s->pict_type==FF_B_TYPE){\n\n s->me.qpel_put= s->dsp.put_2tap_qpel_pixels_tab;\n\n s->me.qpel_avg= s->dsp.avg_2tap_qpel_pixels_tab;\n\n }else if((!s->no_rounding) || s->pict_type==FF_B_TYPE){\n\n s->me.qpel_put= s->dsp.put_qpel_pixels_tab;\n\n s->me.qpel_avg= s->dsp.avg_qpel_pixels_tab;\n\n }else{\n\n s->me.qpel_put= s->dsp.put_no_rnd_qpel_pixels_tab;\n\n s->me.qpel_avg= s->dsp.avg_qpel_pixels_tab;\n\n }\n\n\n\n if(MPV_frame_start(s, avctx) < 0)\n\n return -1;\n\n\n\n#ifdef DEBUG\n\n av_log(avctx, AV_LOG_DEBUG, \"qscale=%d\\n\", s->qscale);\n\n#endif\n\n\n\n ff_er_frame_start(s);\n\n\n\n //the second part of the wmv2 header contains the MB skip bits which are stored in current_picture->mb_type\n\n //which is not available before MPV_frame_start()\n\n if (CONFIG_WMV2_DECODER && s->msmpeg4_version==5){\n\n ret = ff_wmv2_decode_secondary_picture_header(s);\n\n if(ret<0) return ret;\n\n if(ret==1) goto intrax8_decoded;\n\n }\n\n\n\n /* decode each macroblock */\n\n s->mb_x=0;\n\n s->mb_y=0;\n\n\n\n decode_slice(s);\n\n while(s->mb_ymb_height){\n\n if(s->msmpeg4_version){\n\n if(s->slice_height==0 || s->mb_x!=0 || (s->mb_y%s->slice_height)!=0 || get_bits_count(&s->gb) > s->gb.size_in_bits)\n\n break;\n\n }else{\n\n if(ff_h263_resync(s)<0)\n\n break;\n\n }\n\n\n\n if(s->msmpeg4_version<4 && s->h263_pred)\n\n ff_mpeg4_clean_buffers(s);\n\n\n\n decode_slice(s);\n\n }\n\n\n\n if (s->h263_msmpeg4 && s->msmpeg4_version<4 && s->pict_type==FF_I_TYPE)\n\n if(!CONFIG_MSMPEG4_DECODER || msmpeg4_decode_ext_header(s, buf_size) < 0){\n\n s->error_status_table[s->mb_num-1]= AC_ERROR|DC_ERROR|MV_ERROR;\n\n }\n\n\n\n /* divx 5.01+ bistream reorder stuff */\n\n if(s->codec_id==CODEC_ID_MPEG4 && s->bitstream_buffer_size==0 && s->divx_packed){\n\n int current_pos= get_bits_count(&s->gb)>>3;\n\n int startcode_found=0;\n\n\n\n if(buf_size - current_pos > 5){\n\n int i;\n\n for(i=current_pos; igb.buffer == s->bitstream_buffer && buf_size>20){ //xvid style\n\n startcode_found=1;\n\n current_pos=0;\n\n }\n\n\n\n if(startcode_found){\n\n s->bitstream_buffer= av_fast_realloc(\n\n s->bitstream_buffer,\n\n &s->allocated_bitstream_buffer_size,\n\n buf_size - current_pos + FF_INPUT_BUFFER_PADDING_SIZE);\n\n memcpy(s->bitstream_buffer, buf + current_pos, buf_size - current_pos);\n\n s->bitstream_buffer_size= buf_size - current_pos;\n\n }\n\n }\n\n\n\nintrax8_decoded:\n\n ff_er_frame_end(s);\n\n\n\n MPV_frame_end(s);\n\n\n\nassert(s->current_picture.pict_type == s->current_picture_ptr->pict_type);\n\nassert(s->current_picture.pict_type == s->pict_type);\n\n if (s->pict_type == FF_B_TYPE || s->low_delay) {\n\n *pict= *(AVFrame*)s->current_picture_ptr;\n\n } else if (s->last_picture_ptr != NULL) {\n\n *pict= *(AVFrame*)s->last_picture_ptr;\n\n }\n\n\n\n if(s->last_picture_ptr || s->low_delay){\n\n *data_size = sizeof(AVFrame);\n\n ff_print_debug_info(s, pict);\n\n }\n\n\n\n /* Return the Picture timestamp as the frame number */\n\n /* we subtract 1 because it is added on utils.c */\n\n avctx->frame_number = s->picture_number - 1;\n\n\n\n#ifdef PRINT_FRAME_TIME\n\nav_log(avctx, AV_LOG_DEBUG, \"%\"PRId64\"\\n\", rdtsc()-time);\n\n#endif\n\n\n\n return get_consumed_bytes(s, buf_size);\n\n}\n", + "output": "0", + "index": 23720 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int vfio_pci_hot_reset(VFIOPCIDevice *vdev, bool single)\n\n{\n\n VFIOGroup *group;\n\n struct vfio_pci_hot_reset_info *info;\n\n struct vfio_pci_dependent_device *devices;\n\n struct vfio_pci_hot_reset *reset;\n\n int32_t *fds;\n\n int ret, i, count;\n\n bool multi = false;\n\n\n\n trace_vfio_pci_hot_reset(vdev->vbasedev.name, single ? \"one\" : \"multi\");\n\n\n\n vfio_pci_pre_reset(vdev);\n\n vdev->vbasedev.needs_reset = false;\n\n\n\n info = g_malloc0(sizeof(*info));\n\n info->argsz = sizeof(*info);\n\n\n\n ret = ioctl(vdev->vbasedev.fd, VFIO_DEVICE_GET_PCI_HOT_RESET_INFO, info);\n\n if (ret && errno != ENOSPC) {\n\n ret = -errno;\n\n if (!vdev->has_pm_reset) {\n\n error_report(\"vfio: Cannot reset device %04x:%02x:%02x.%x, \"\n\n \"no available reset mechanism.\", vdev->host.domain,\n\n vdev->host.bus, vdev->host.slot, vdev->host.function);\n\n }\n\n goto out_single;\n\n }\n\n\n\n count = info->count;\n\n info = g_realloc(info, sizeof(*info) + (count * sizeof(*devices)));\n\n info->argsz = sizeof(*info) + (count * sizeof(*devices));\n\n devices = &info->devices[0];\n\n\n\n ret = ioctl(vdev->vbasedev.fd, VFIO_DEVICE_GET_PCI_HOT_RESET_INFO, info);\n\n if (ret) {\n\n ret = -errno;\n\n error_report(\"vfio: hot reset info failed: %m\");\n\n goto out_single;\n\n }\n\n\n\n trace_vfio_pci_hot_reset_has_dep_devices(vdev->vbasedev.name);\n\n\n\n /* Verify that we have all the groups required */\n\n for (i = 0; i < info->count; i++) {\n\n PCIHostDeviceAddress host;\n\n VFIOPCIDevice *tmp;\n\n VFIODevice *vbasedev_iter;\n\n\n\n host.domain = devices[i].segment;\n\n host.bus = devices[i].bus;\n\n host.slot = PCI_SLOT(devices[i].devfn);\n\n host.function = PCI_FUNC(devices[i].devfn);\n\n\n\n trace_vfio_pci_hot_reset_dep_devices(host.domain,\n\n host.bus, host.slot, host.function, devices[i].group_id);\n\n\n\n if (vfio_pci_host_match(&host, &vdev->host)) {\n\n continue;\n\n }\n\n\n\n QLIST_FOREACH(group, &vfio_group_list, next) {\n\n if (group->groupid == devices[i].group_id) {\n\n break;\n\n }\n\n }\n\n\n\n if (!group) {\n\n if (!vdev->has_pm_reset) {\n\n error_report(\"vfio: Cannot reset device %s, \"\n\n \"depends on group %d which is not owned.\",\n\n vdev->vbasedev.name, devices[i].group_id);\n\n }\n\n ret = -EPERM;\n\n goto out;\n\n }\n\n\n\n /* Prep dependent devices for reset and clear our marker. */\n\n QLIST_FOREACH(vbasedev_iter, &group->device_list, next) {\n\n if (vbasedev_iter->type != VFIO_DEVICE_TYPE_PCI) {\n\n continue;\n\n }\n\n tmp = container_of(vbasedev_iter, VFIOPCIDevice, vbasedev);\n\n if (vfio_pci_host_match(&host, &tmp->host)) {\n\n if (single) {\n\n ret = -EINVAL;\n\n goto out_single;\n\n }\n\n vfio_pci_pre_reset(tmp);\n\n tmp->vbasedev.needs_reset = false;\n\n multi = true;\n\n break;\n\n }\n\n }\n\n }\n\n\n\n if (!single && !multi) {\n\n ret = -EINVAL;\n\n goto out_single;\n\n }\n\n\n\n /* Determine how many group fds need to be passed */\n\n count = 0;\n\n QLIST_FOREACH(group, &vfio_group_list, next) {\n\n for (i = 0; i < info->count; i++) {\n\n if (group->groupid == devices[i].group_id) {\n\n count++;\n\n break;\n\n }\n\n }\n\n }\n\n\n\n reset = g_malloc0(sizeof(*reset) + (count * sizeof(*fds)));\n\n reset->argsz = sizeof(*reset) + (count * sizeof(*fds));\n\n fds = &reset->group_fds[0];\n\n\n\n /* Fill in group fds */\n\n QLIST_FOREACH(group, &vfio_group_list, next) {\n\n for (i = 0; i < info->count; i++) {\n\n if (group->groupid == devices[i].group_id) {\n\n fds[reset->count++] = group->fd;\n\n break;\n\n }\n\n }\n\n }\n\n\n\n /* Bus reset! */\n\n ret = ioctl(vdev->vbasedev.fd, VFIO_DEVICE_PCI_HOT_RESET, reset);\n\n g_free(reset);\n\n\n\n trace_vfio_pci_hot_reset_result(vdev->vbasedev.name,\n\n ret ? \"%m\" : \"Success\");\n\n\n\nout:\n\n /* Re-enable INTx on affected devices */\n\n for (i = 0; i < info->count; i++) {\n\n PCIHostDeviceAddress host;\n\n VFIOPCIDevice *tmp;\n\n VFIODevice *vbasedev_iter;\n\n\n\n host.domain = devices[i].segment;\n\n host.bus = devices[i].bus;\n\n host.slot = PCI_SLOT(devices[i].devfn);\n\n host.function = PCI_FUNC(devices[i].devfn);\n\n\n\n if (vfio_pci_host_match(&host, &vdev->host)) {\n\n continue;\n\n }\n\n\n\n QLIST_FOREACH(group, &vfio_group_list, next) {\n\n if (group->groupid == devices[i].group_id) {\n\n break;\n\n }\n\n }\n\n\n\n if (!group) {\n\n break;\n\n }\n\n\n\n QLIST_FOREACH(vbasedev_iter, &group->device_list, next) {\n\n if (vbasedev_iter->type != VFIO_DEVICE_TYPE_PCI) {\n\n continue;\n\n }\n\n tmp = container_of(vbasedev_iter, VFIOPCIDevice, vbasedev);\n\n if (vfio_pci_host_match(&host, &tmp->host)) {\n\n vfio_pci_post_reset(tmp);\n\n break;\n\n }\n\n }\n\n }\n\nout_single:\n\n vfio_pci_post_reset(vdev);\n\n g_free(info);\n\n\n\n return ret;\n\n}\n", + "output": "0", + "index": 16796 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static inline void RENAME(bgr24ToY)(uint8_t *dst, uint8_t *src, int 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\t\".balign 16\t\t\t\\n\\t\"\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\" ((long)-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": "1", + "index": 15121 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void sdhci_do_adma(SDHCIState *s)\n\n{\n\n unsigned int n, begin, length;\n\n const uint16_t block_size = s->blksize & 0x0fff;\n\n ADMADescr dscr;\n\n int i;\n\n\n\n for (i = 0; i < SDHC_ADMA_DESCS_PER_DELAY; ++i) {\n\n s->admaerr &= ~SDHC_ADMAERR_LENGTH_MISMATCH;\n\n\n\n get_adma_description(s, &dscr);\n\n DPRINT_L2(\"ADMA loop: addr=\" TARGET_FMT_plx \", len=%d, attr=%x\\n\",\n\n dscr.addr, dscr.length, dscr.attr);\n\n\n\n if ((dscr.attr & SDHC_ADMA_ATTR_VALID) == 0) {\n\n /* Indicate that error occurred in ST_FDS state */\n\n s->admaerr &= ~SDHC_ADMAERR_STATE_MASK;\n\n s->admaerr |= SDHC_ADMAERR_STATE_ST_FDS;\n\n\n\n /* Generate ADMA error interrupt */\n\n if (s->errintstsen & SDHC_EISEN_ADMAERR) {\n\n s->errintsts |= SDHC_EIS_ADMAERR;\n\n s->norintsts |= SDHC_NIS_ERR;\n\n }\n\n\n\n sdhci_update_irq(s);\n\n return;\n\n }\n\n\n\n length = dscr.length ? dscr.length : 65536;\n\n\n\n switch (dscr.attr & SDHC_ADMA_ATTR_ACT_MASK) {\n\n case SDHC_ADMA_ATTR_ACT_TRAN: /* data transfer */\n\n\n\n if (s->trnmod & SDHC_TRNS_READ) {\n\n while (length) {\n\n if (s->data_count == 0) {\n\n for (n = 0; n < block_size; n++) {\n\n s->fifo_buffer[n] = sdbus_read_data(&s->sdbus);\n\n }\n\n }\n\n begin = s->data_count;\n\n if ((length + begin) < block_size) {\n\n s->data_count = length + begin;\n\n length = 0;\n\n } else {\n\n s->data_count = block_size;\n\n length -= block_size - begin;\n\n }\n\n dma_memory_write(&address_space_memory, dscr.addr,\n\n &s->fifo_buffer[begin],\n\n s->data_count - begin);\n\n dscr.addr += s->data_count - begin;\n\n if (s->data_count == block_size) {\n\n s->data_count = 0;\n\n if (s->trnmod & SDHC_TRNS_BLK_CNT_EN) {\n\n s->blkcnt--;\n\n if (s->blkcnt == 0) {\n\n break;\n\n }\n\n }\n\n }\n\n }\n\n } else {\n\n while (length) {\n\n begin = s->data_count;\n\n if ((length + begin) < block_size) {\n\n s->data_count = length + begin;\n\n length = 0;\n\n } else {\n\n s->data_count = block_size;\n\n length -= block_size - begin;\n\n }\n\n dma_memory_read(&address_space_memory, dscr.addr,\n\n &s->fifo_buffer[begin],\n\n s->data_count - begin);\n\n dscr.addr += s->data_count - begin;\n\n if (s->data_count == block_size) {\n\n for (n = 0; n < block_size; n++) {\n\n sdbus_write_data(&s->sdbus, s->fifo_buffer[n]);\n\n }\n\n s->data_count = 0;\n\n if (s->trnmod & SDHC_TRNS_BLK_CNT_EN) {\n\n s->blkcnt--;\n\n if (s->blkcnt == 0) {\n\n break;\n\n }\n\n }\n\n }\n\n }\n\n }\n\n s->admasysaddr += dscr.incr;\n\n break;\n\n case SDHC_ADMA_ATTR_ACT_LINK: /* link to next descriptor table */\n\n s->admasysaddr = dscr.addr;\n\n DPRINT_L1(\"ADMA link: admasysaddr=0x%\" PRIx64 \"\\n\",\n\n s->admasysaddr);\n\n break;\n\n default:\n\n s->admasysaddr += dscr.incr;\n\n break;\n\n }\n\n\n\n if (dscr.attr & SDHC_ADMA_ATTR_INT) {\n\n DPRINT_L1(\"ADMA interrupt: admasysaddr=0x%\" PRIx64 \"\\n\",\n\n s->admasysaddr);\n\n if (s->norintstsen & SDHC_NISEN_DMA) {\n\n s->norintsts |= SDHC_NIS_DMA;\n\n }\n\n\n\n sdhci_update_irq(s);\n\n }\n\n\n\n /* ADMA transfer terminates if blkcnt == 0 or by END attribute */\n\n if (((s->trnmod & SDHC_TRNS_BLK_CNT_EN) &&\n\n (s->blkcnt == 0)) || (dscr.attr & SDHC_ADMA_ATTR_END)) {\n\n DPRINT_L2(\"ADMA transfer completed\\n\");\n\n if (length || ((dscr.attr & SDHC_ADMA_ATTR_END) &&\n\n (s->trnmod & SDHC_TRNS_BLK_CNT_EN) &&\n\n s->blkcnt != 0)) {\n\n ERRPRINT(\"SD/MMC host ADMA length mismatch\\n\");\n\n s->admaerr |= SDHC_ADMAERR_LENGTH_MISMATCH |\n\n SDHC_ADMAERR_STATE_ST_TFR;\n\n if (s->errintstsen & SDHC_EISEN_ADMAERR) {\n\n ERRPRINT(\"Set ADMA error flag\\n\");\n\n s->errintsts |= SDHC_EIS_ADMAERR;\n\n s->norintsts |= SDHC_NIS_ERR;\n\n }\n\n\n\n sdhci_update_irq(s);\n\n }\n\n sdhci_end_transfer(s);\n\n return;\n\n }\n\n\n\n }\n\n\n\n /* we have unfinished business - reschedule to continue ADMA */\n\n timer_mod(s->transfer_timer,\n\n qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + SDHC_TRANSFER_DELAY);\n\n}\n", + "output": "1", + "index": 13255 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static QDict *monitor_parse_arguments(Monitor *mon,\n\n const char **endp,\n\n const mon_cmd_t *cmd)\n\n{\n\n const char *typestr;\n\n char *key;\n\n int c;\n\n const char *p = *endp;\n\n char buf[1024];\n\n QDict *qdict = qdict_new();\n\n\n\n /* parse the parameters */\n\n typestr = cmd->args_type;\n\n for(;;) {\n\n typestr = key_get_info(typestr, &key);\n\n if (!typestr)\n\n break;\n\n c = *typestr;\n\n typestr++;\n\n switch(c) {\n\n case 'F':\n\n case 'B':\n\n case 's':\n\n {\n\n int ret;\n\n\n\n while (qemu_isspace(*p))\n\n p++;\n\n if (*typestr == '?') {\n\n typestr++;\n\n if (*p == '\\0') {\n\n /* no optional string: NULL argument */\n\n break;\n\n }\n\n }\n\n ret = get_str(buf, sizeof(buf), &p);\n\n if (ret < 0) {\n\n switch(c) {\n\n case 'F':\n\n monitor_printf(mon, \"%s: filename expected\\n\",\n\n cmd->name);\n\n break;\n\n case 'B':\n\n monitor_printf(mon, \"%s: block device name expected\\n\",\n\n cmd->name);\n\n break;\n\n default:\n\n monitor_printf(mon, \"%s: string expected\\n\", cmd->name);\n\n break;\n\n }\n\n goto fail;\n\n }\n\n qdict_put(qdict, key, qstring_from_str(buf));\n\n }\n\n break;\n\n case 'O':\n\n {\n\n QemuOptsList *opts_list;\n\n QemuOpts *opts;\n\n\n\n opts_list = qemu_find_opts(key);\n\n if (!opts_list || opts_list->desc->name) {\n\n goto bad_type;\n\n }\n\n while (qemu_isspace(*p)) {\n\n p++;\n\n }\n\n if (!*p)\n\n break;\n\n if (get_str(buf, sizeof(buf), &p) < 0) {\n\n goto fail;\n\n }\n\n opts = qemu_opts_parse_noisily(opts_list, buf, true);\n\n if (!opts) {\n\n goto fail;\n\n }\n\n qemu_opts_to_qdict(opts, qdict);\n\n qemu_opts_del(opts);\n\n }\n\n break;\n\n case '/':\n\n {\n\n int count, format, size;\n\n\n\n while (qemu_isspace(*p))\n\n p++;\n\n if (*p == '/') {\n\n /* format found */\n\n p++;\n\n count = 1;\n\n if (qemu_isdigit(*p)) {\n\n count = 0;\n\n while (qemu_isdigit(*p)) {\n\n count = count * 10 + (*p - '0');\n\n p++;\n\n }\n\n }\n\n size = -1;\n\n format = -1;\n\n for(;;) {\n\n switch(*p) {\n\n case 'o':\n\n case 'd':\n\n case 'u':\n\n case 'x':\n\n case 'i':\n\n case 'c':\n\n format = *p++;\n\n break;\n\n case 'b':\n\n size = 1;\n\n p++;\n\n break;\n\n case 'h':\n\n size = 2;\n\n p++;\n\n break;\n\n case 'w':\n\n size = 4;\n\n p++;\n\n break;\n\n case 'g':\n\n case 'L':\n\n size = 8;\n\n p++;\n\n break;\n\n default:\n\n goto next;\n\n }\n\n }\n\n next:\n\n if (*p != '\\0' && !qemu_isspace(*p)) {\n\n monitor_printf(mon, \"invalid char in format: '%c'\\n\",\n\n *p);\n\n goto fail;\n\n }\n\n if (format < 0)\n\n format = default_fmt_format;\n\n if (format != 'i') {\n\n /* for 'i', not specifying a size gives -1 as size */\n\n if (size < 0)\n\n size = default_fmt_size;\n\n default_fmt_size = size;\n\n }\n\n default_fmt_format = format;\n\n } else {\n\n count = 1;\n\n format = default_fmt_format;\n\n if (format != 'i') {\n\n size = default_fmt_size;\n\n } else {\n\n size = -1;\n\n }\n\n }\n\n qdict_put(qdict, \"count\", qint_from_int(count));\n\n qdict_put(qdict, \"format\", qint_from_int(format));\n\n qdict_put(qdict, \"size\", qint_from_int(size));\n\n }\n\n break;\n\n case 'i':\n\n case 'l':\n\n case 'M':\n\n {\n\n int64_t val;\n\n\n\n while (qemu_isspace(*p))\n\n p++;\n\n if (*typestr == '?' || *typestr == '.') {\n\n if (*typestr == '?') {\n\n if (*p == '\\0') {\n\n typestr++;\n\n break;\n\n }\n\n } else {\n\n if (*p == '.') {\n\n p++;\n\n while (qemu_isspace(*p))\n\n p++;\n\n } else {\n\n typestr++;\n\n break;\n\n }\n\n }\n\n typestr++;\n\n }\n\n if (get_expr(mon, &val, &p))\n\n goto fail;\n\n /* Check if 'i' is greater than 32-bit */\n\n if ((c == 'i') && ((val >> 32) & 0xffffffff)) {\n\n monitor_printf(mon, \"\\'%s\\' has failed: \", cmd->name);\n\n monitor_printf(mon, \"integer is for 32-bit values\\n\");\n\n goto fail;\n\n } else if (c == 'M') {\n\n if (val < 0) {\n\n monitor_printf(mon, \"enter a positive value\\n\");\n\n goto fail;\n\n }\n\n val <<= 20;\n\n }\n\n qdict_put(qdict, key, qint_from_int(val));\n\n }\n\n break;\n\n case 'o':\n\n {\n\n int64_t val;\n\n char *end;\n\n\n\n while (qemu_isspace(*p)) {\n\n p++;\n\n }\n\n if (*typestr == '?') {\n\n typestr++;\n\n if (*p == '\\0') {\n\n break;\n\n }\n\n }\n\n val = qemu_strtosz_MiB(p, &end);\n\n if (val < 0) {\n\n monitor_printf(mon, \"invalid size\\n\");\n\n goto fail;\n\n }\n\n qdict_put(qdict, key, qint_from_int(val));\n\n p = end;\n\n }\n\n break;\n\n case 'T':\n\n {\n\n double val;\n\n\n\n while (qemu_isspace(*p))\n\n p++;\n\n if (*typestr == '?') {\n\n typestr++;\n\n if (*p == '\\0') {\n\n break;\n\n }\n\n }\n\n if (get_double(mon, &val, &p) < 0) {\n\n goto fail;\n\n }\n\n if (p[0] && p[1] == 's') {\n\n switch (*p) {\n\n case 'm':\n\n val /= 1e3; p += 2; break;\n\n case 'u':\n\n val /= 1e6; p += 2; break;\n\n case 'n':\n\n val /= 1e9; p += 2; break;\n\n }\n\n }\n\n if (*p && !qemu_isspace(*p)) {\n\n monitor_printf(mon, \"Unknown unit suffix\\n\");\n\n goto fail;\n\n }\n\n qdict_put(qdict, key, qfloat_from_double(val));\n\n }\n\n break;\n\n case 'b':\n\n {\n\n const char *beg;\n\n bool val;\n\n\n\n while (qemu_isspace(*p)) {\n\n p++;\n\n }\n\n beg = p;\n\n while (qemu_isgraph(*p)) {\n\n p++;\n\n }\n\n if (p - beg == 2 && !memcmp(beg, \"on\", p - beg)) {\n\n val = true;\n\n } else if (p - beg == 3 && !memcmp(beg, \"off\", p - beg)) {\n\n val = false;\n\n } else {\n\n monitor_printf(mon, \"Expected 'on' or 'off'\\n\");\n\n goto fail;\n\n }\n\n qdict_put(qdict, key, qbool_from_bool(val));\n\n }\n\n break;\n\n case '-':\n\n {\n\n const char *tmp = p;\n\n int skip_key = 0;\n\n /* option */\n\n\n\n c = *typestr++;\n\n if (c == '\\0')\n\n goto bad_type;\n\n while (qemu_isspace(*p))\n\n p++;\n\n if (*p == '-') {\n\n p++;\n\n if(c != *p) {\n\n if(!is_valid_option(p, typestr)) {\n\n \n\n monitor_printf(mon, \"%s: unsupported option -%c\\n\",\n\n cmd->name, *p);\n\n goto fail;\n\n } else {\n\n skip_key = 1;\n\n }\n\n }\n\n if(skip_key) {\n\n p = tmp;\n\n } else {\n\n /* has option */\n\n p++;\n\n qdict_put(qdict, key, qbool_from_bool(true));\n\n }\n\n }\n\n }\n\n break;\n\n case 'S':\n\n {\n\n /* package all remaining string */\n\n int len;\n\n\n\n while (qemu_isspace(*p)) {\n\n p++;\n\n }\n\n if (*typestr == '?') {\n\n typestr++;\n\n if (*p == '\\0') {\n\n /* no remaining string: NULL argument */\n\n break;\n\n }\n\n }\n\n len = strlen(p);\n\n if (len <= 0) {\n\n monitor_printf(mon, \"%s: string expected\\n\",\n\n cmd->name);\n\n goto fail;\n\n }\n\n qdict_put(qdict, key, qstring_from_str(p));\n\n p += len;\n\n }\n\n break;\n\n default:\n\n bad_type:\n\n monitor_printf(mon, \"%s: unknown type '%c'\\n\", cmd->name, c);\n\n goto fail;\n\n }\n\n g_free(key);\n\n key = NULL;\n\n }\n\n /* check that all arguments were parsed */\n\n while (qemu_isspace(*p))\n\n p++;\n\n if (*p != '\\0') {\n\n monitor_printf(mon, \"%s: extraneous characters at the end of line\\n\",\n\n cmd->name);\n\n goto fail;\n\n }\n\n\n\n return qdict;\n\n\n\nfail:\n\n QDECREF(qdict);\n\n g_free(key);\n\n return NULL;\n\n}\n", + "output": "0", + "index": 25927 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int ac3_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 int buf_size = avpkt->size;\n\n AC3DecodeContext *s = avctx->priv_data;\n\n int16_t *out_samples = (int16_t *)data;\n\n int blk, ch, err;\n\n const uint8_t *channel_map;\n\n const float *output[AC3_MAX_CHANNELS];\n\n\n\n /* initialize the GetBitContext with the start of valid AC-3 Frame */\n\n if (s->input_buffer) {\n\n /* copy input buffer to decoder context to avoid reading past the end\n\n of the buffer, which can be caused by a damaged input stream. */\n\n memcpy(s->input_buffer, buf, FFMIN(buf_size, AC3_FRAME_BUFFER_SIZE));\n\n init_get_bits(&s->gbc, s->input_buffer, buf_size * 8);\n\n } else {\n\n init_get_bits(&s->gbc, buf, buf_size * 8);\n\n }\n\n\n\n /* parse the syncinfo */\n\n *data_size = 0;\n\n err = parse_frame_header(s);\n\n\n\n /* check that reported frame size fits in input buffer */\n\n if(s->frame_size > buf_size) {\n\n av_log(avctx, AV_LOG_ERROR, \"incomplete frame\\n\");\n\n err = AAC_AC3_PARSE_ERROR_FRAME_SIZE;\n\n }\n\n\n\n /* check for crc mismatch */\n\n if(err != AAC_AC3_PARSE_ERROR_FRAME_SIZE && avctx->error_recognition >= FF_ER_CAREFUL) {\n\n if(av_crc(av_crc_get_table(AV_CRC_16_ANSI), 0, &buf[2], s->frame_size-2)) {\n\n av_log(avctx, AV_LOG_ERROR, \"frame CRC mismatch\\n\");\n\n err = AAC_AC3_PARSE_ERROR_CRC;\n\n }\n\n }\n\n\n\n if(err && err != AAC_AC3_PARSE_ERROR_CRC) {\n\n switch(err) {\n\n case AAC_AC3_PARSE_ERROR_SYNC:\n\n av_log(avctx, AV_LOG_ERROR, \"frame sync error\\n\");\n\n return -1;\n\n case AAC_AC3_PARSE_ERROR_BSID:\n\n av_log(avctx, AV_LOG_ERROR, \"invalid bitstream id\\n\");\n\n break;\n\n case AAC_AC3_PARSE_ERROR_SAMPLE_RATE:\n\n av_log(avctx, AV_LOG_ERROR, \"invalid sample rate\\n\");\n\n break;\n\n case AAC_AC3_PARSE_ERROR_FRAME_SIZE:\n\n av_log(avctx, AV_LOG_ERROR, \"invalid frame size\\n\");\n\n break;\n\n case AAC_AC3_PARSE_ERROR_FRAME_TYPE:\n\n /* skip frame if CRC is ok. otherwise use error concealment. */\n\n /* TODO: add support for substreams and dependent frames */\n\n if(s->frame_type == EAC3_FRAME_TYPE_DEPENDENT || s->substreamid) {\n\n av_log(avctx, AV_LOG_ERROR, \"unsupported frame type : skipping frame\\n\");\n\n return s->frame_size;\n\n } else {\n\n av_log(avctx, AV_LOG_ERROR, \"invalid frame type\\n\");\n\n }\n\n break;\n\n default:\n\n av_log(avctx, AV_LOG_ERROR, \"invalid header\\n\");\n\n break;\n\n }\n\n }\n\n\n\n /* if frame is ok, set audio parameters */\n\n if (!err) {\n\n avctx->sample_rate = s->sample_rate;\n\n avctx->bit_rate = s->bit_rate;\n\n\n\n /* channel config */\n\n s->out_channels = s->channels;\n\n s->output_mode = s->channel_mode;\n\n if(s->lfe_on)\n\n s->output_mode |= AC3_OUTPUT_LFEON;\n\n if (avctx->request_channels > 0 && avctx->request_channels <= 2 &&\n\n avctx->request_channels < s->channels) {\n\n s->out_channels = avctx->request_channels;\n\n s->output_mode = avctx->request_channels == 1 ? AC3_CHMODE_MONO : AC3_CHMODE_STEREO;\n\n s->channel_layout = ff_ac3_channel_layout_tab[s->output_mode];\n\n }\n\n avctx->channels = s->out_channels;\n\n avctx->channel_layout = s->channel_layout;\n\n\n\n /* set downmixing coefficients if needed */\n\n if(s->channels != s->out_channels && !((s->output_mode & AC3_OUTPUT_LFEON) &&\n\n s->fbw_channels == s->out_channels)) {\n\n set_downmix_coeffs(s);\n\n }\n\n } else if (!s->out_channels) {\n\n s->out_channels = avctx->channels;\n\n if(s->out_channels < s->channels)\n\n s->output_mode = s->out_channels == 1 ? AC3_CHMODE_MONO : AC3_CHMODE_STEREO;\n\n }\n\n\n\n /* decode the audio blocks */\n\n channel_map = ff_ac3_dec_channel_map[s->output_mode & ~AC3_OUTPUT_LFEON][s->lfe_on];\n\n for (ch = 0; ch < s->out_channels; ch++)\n\n output[ch] = s->output[channel_map[ch]];\n\n for (blk = 0; blk < s->num_blocks; blk++) {\n\n if (!err && decode_audio_block(s, blk)) {\n\n av_log(avctx, AV_LOG_ERROR, \"error decoding the audio block\\n\");\n\n err = 1;\n\n }\n\n s->dsp.float_to_int16_interleave(out_samples, output, 256, s->out_channels);\n\n out_samples += 256 * s->out_channels;\n\n }\n\n *data_size = s->num_blocks * 256 * avctx->channels * sizeof (int16_t);\n\n return s->frame_size;\n\n}\n", + "output": "0", + "index": 22358 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int disas_vfp_insn(CPUState * env, DisasContext *s, uint32_t insn)\n\n{\n\n uint32_t rd, rn, rm, op, i, n, offset, delta_d, delta_m, bank_mask;\n\n int dp, veclen;\n\n TCGv addr;\n\n TCGv tmp;\n\n TCGv tmp2;\n\n\n\n if (!arm_feature(env, ARM_FEATURE_VFP))\n\n return 1;\n\n\n\n if (!vfp_enabled(env)) {\n\n /* VFP disabled. Only allow fmxr/fmrx to/from some control regs. */\n\n if ((insn & 0x0fe00fff) != 0x0ee00a10)\n\n return 1;\n\n rn = (insn >> 16) & 0xf;\n\n if (rn != ARM_VFP_FPSID && rn != ARM_VFP_FPEXC\n\n && rn != ARM_VFP_MVFR1 && rn != ARM_VFP_MVFR0)\n\n return 1;\n\n }\n\n dp = ((insn & 0xf00) == 0xb00);\n\n switch ((insn >> 24) & 0xf) {\n\n case 0xe:\n\n if (insn & (1 << 4)) {\n\n /* single register transfer */\n\n rd = (insn >> 12) & 0xf;\n\n if (dp) {\n\n int size;\n\n int pass;\n\n\n\n VFP_DREG_N(rn, insn);\n\n if (insn & 0xf)\n\n return 1;\n\n if (insn & 0x00c00060\n\n && !arm_feature(env, ARM_FEATURE_NEON))\n\n return 1;\n\n\n\n pass = (insn >> 21) & 1;\n\n if (insn & (1 << 22)) {\n\n size = 0;\n\n offset = ((insn >> 5) & 3) * 8;\n\n } else if (insn & (1 << 5)) {\n\n size = 1;\n\n offset = (insn & (1 << 6)) ? 16 : 0;\n\n } else {\n\n size = 2;\n\n offset = 0;\n\n }\n\n if (insn & ARM_CP_RW_BIT) {\n\n /* vfp->arm */\n\n tmp = neon_load_reg(rn, pass);\n\n switch (size) {\n\n case 0:\n\n if (offset)\n\n tcg_gen_shri_i32(tmp, tmp, offset);\n\n if (insn & (1 << 23))\n\n gen_uxtb(tmp);\n\n else\n\n gen_sxtb(tmp);\n\n break;\n\n case 1:\n\n if (insn & (1 << 23)) {\n\n if (offset) {\n\n tcg_gen_shri_i32(tmp, tmp, 16);\n\n } else {\n\n gen_uxth(tmp);\n\n }\n\n } else {\n\n if (offset) {\n\n tcg_gen_sari_i32(tmp, tmp, 16);\n\n } else {\n\n gen_sxth(tmp);\n\n }\n\n }\n\n break;\n\n case 2:\n\n break;\n\n }\n\n store_reg(s, rd, tmp);\n\n } else {\n\n /* arm->vfp */\n\n tmp = load_reg(s, rd);\n\n if (insn & (1 << 23)) {\n\n /* VDUP */\n\n if (size == 0) {\n\n gen_neon_dup_u8(tmp, 0);\n\n } else if (size == 1) {\n\n gen_neon_dup_low16(tmp);\n\n }\n\n for (n = 0; n <= pass * 2; n++) {\n\n tmp2 = new_tmp();\n\n tcg_gen_mov_i32(tmp2, tmp);\n\n neon_store_reg(rn, n, tmp2);\n\n }\n\n neon_store_reg(rn, n, tmp);\n\n } else {\n\n /* VMOV */\n\n switch (size) {\n\n case 0:\n\n tmp2 = neon_load_reg(rn, pass);\n\n gen_bfi(tmp, tmp2, tmp, offset, 0xff);\n\n dead_tmp(tmp2);\n\n break;\n\n case 1:\n\n tmp2 = neon_load_reg(rn, pass);\n\n gen_bfi(tmp, tmp2, tmp, offset, 0xffff);\n\n dead_tmp(tmp2);\n\n break;\n\n case 2:\n\n break;\n\n }\n\n neon_store_reg(rn, pass, tmp);\n\n }\n\n }\n\n } else { /* !dp */\n\n if ((insn & 0x6f) != 0x00)\n\n return 1;\n\n rn = VFP_SREG_N(insn);\n\n if (insn & ARM_CP_RW_BIT) {\n\n /* vfp->arm */\n\n if (insn & (1 << 21)) {\n\n /* system register */\n\n rn >>= 1;\n\n\n\n switch (rn) {\n\n case ARM_VFP_FPSID:\n\n /* VFP2 allows access to FSID from userspace.\n\n VFP3 restricts all id registers to privileged\n\n accesses. */\n\n if (IS_USER(s)\n\n && arm_feature(env, ARM_FEATURE_VFP3))\n\n return 1;\n\n tmp = load_cpu_field(vfp.xregs[rn]);\n\n break;\n\n case ARM_VFP_FPEXC:\n\n if (IS_USER(s))\n\n return 1;\n\n tmp = load_cpu_field(vfp.xregs[rn]);\n\n break;\n\n case ARM_VFP_FPINST:\n\n case ARM_VFP_FPINST2:\n\n /* Not present in VFP3. */\n\n if (IS_USER(s)\n\n || arm_feature(env, ARM_FEATURE_VFP3))\n\n return 1;\n\n tmp = load_cpu_field(vfp.xregs[rn]);\n\n break;\n\n case ARM_VFP_FPSCR:\n\n if (rd == 15) {\n\n tmp = load_cpu_field(vfp.xregs[ARM_VFP_FPSCR]);\n\n tcg_gen_andi_i32(tmp, tmp, 0xf0000000);\n\n } else {\n\n tmp = new_tmp();\n\n gen_helper_vfp_get_fpscr(tmp, cpu_env);\n\n }\n\n break;\n\n case ARM_VFP_MVFR0:\n\n case ARM_VFP_MVFR1:\n\n if (IS_USER(s)\n\n || !arm_feature(env, ARM_FEATURE_VFP3))\n\n return 1;\n\n tmp = load_cpu_field(vfp.xregs[rn]);\n\n break;\n\n default:\n\n return 1;\n\n }\n\n } else {\n\n gen_mov_F0_vreg(0, rn);\n\n tmp = gen_vfp_mrs();\n\n }\n\n if (rd == 15) {\n\n /* Set the 4 flag bits in the CPSR. */\n\n gen_set_nzcv(tmp);\n\n dead_tmp(tmp);\n\n } else {\n\n store_reg(s, rd, tmp);\n\n }\n\n } else {\n\n /* arm->vfp */\n\n tmp = load_reg(s, rd);\n\n if (insn & (1 << 21)) {\n\n rn >>= 1;\n\n /* system register */\n\n switch (rn) {\n\n case ARM_VFP_FPSID:\n\n case ARM_VFP_MVFR0:\n\n case ARM_VFP_MVFR1:\n\n /* Writes are ignored. */\n\n break;\n\n case ARM_VFP_FPSCR:\n\n gen_helper_vfp_set_fpscr(cpu_env, tmp);\n\n dead_tmp(tmp);\n\n gen_lookup_tb(s);\n\n break;\n\n case ARM_VFP_FPEXC:\n\n if (IS_USER(s))\n\n return 1;\n\n\n\n\n store_cpu_field(tmp, vfp.xregs[rn]);\n\n gen_lookup_tb(s);\n\n break;\n\n case ARM_VFP_FPINST:\n\n case ARM_VFP_FPINST2:\n\n store_cpu_field(tmp, vfp.xregs[rn]);\n\n break;\n\n default:\n\n return 1;\n\n }\n\n } else {\n\n gen_vfp_msr(tmp);\n\n gen_mov_vreg_F0(0, rn);\n\n }\n\n }\n\n }\n\n } else {\n\n /* data processing */\n\n /* The opcode is in bits 23, 21, 20 and 6. */\n\n op = ((insn >> 20) & 8) | ((insn >> 19) & 6) | ((insn >> 6) & 1);\n\n if (dp) {\n\n if (op == 15) {\n\n /* rn is opcode */\n\n rn = ((insn >> 15) & 0x1e) | ((insn >> 7) & 1);\n\n } else {\n\n /* rn is register number */\n\n VFP_DREG_N(rn, insn);\n\n }\n\n\n\n if (op == 15 && (rn == 15 || rn > 17)) {\n\n /* Integer or single precision destination. */\n\n rd = VFP_SREG_D(insn);\n\n } else {\n\n VFP_DREG_D(rd, insn);\n\n }\n\n\n\n if (op == 15 && (rn == 16 || rn == 17)) {\n\n /* Integer source. */\n\n rm = ((insn << 1) & 0x1e) | ((insn >> 5) & 1);\n\n } else {\n\n VFP_DREG_M(rm, insn);\n\n }\n\n } else {\n\n rn = VFP_SREG_N(insn);\n\n if (op == 15 && rn == 15) {\n\n /* Double precision destination. */\n\n VFP_DREG_D(rd, insn);\n\n } else {\n\n rd = VFP_SREG_D(insn);\n\n }\n\n rm = VFP_SREG_M(insn);\n\n }\n\n\n\n veclen = env->vfp.vec_len;\n\n if (op == 15 && rn > 3)\n\n veclen = 0;\n\n\n\n /* Shut up compiler warnings. */\n\n delta_m = 0;\n\n delta_d = 0;\n\n bank_mask = 0;\n\n\n\n if (veclen > 0) {\n\n if (dp)\n\n bank_mask = 0xc;\n\n else\n\n bank_mask = 0x18;\n\n\n\n /* Figure out what type of vector operation this is. */\n\n if ((rd & bank_mask) == 0) {\n\n /* scalar */\n\n veclen = 0;\n\n } else {\n\n if (dp)\n\n delta_d = (env->vfp.vec_stride >> 1) + 1;\n\n else\n\n delta_d = env->vfp.vec_stride + 1;\n\n\n\n if ((rm & bank_mask) == 0) {\n\n /* mixed scalar/vector */\n\n delta_m = 0;\n\n } else {\n\n /* vector */\n\n delta_m = delta_d;\n\n }\n\n }\n\n }\n\n\n\n /* Load the initial operands. */\n\n if (op == 15) {\n\n switch (rn) {\n\n case 16:\n\n case 17:\n\n /* Integer source */\n\n gen_mov_F0_vreg(0, rm);\n\n break;\n\n case 8:\n\n case 9:\n\n /* Compare */\n\n gen_mov_F0_vreg(dp, rd);\n\n gen_mov_F1_vreg(dp, rm);\n\n break;\n\n case 10:\n\n case 11:\n\n /* Compare with zero */\n\n gen_mov_F0_vreg(dp, rd);\n\n gen_vfp_F1_ld0(dp);\n\n break;\n\n case 20:\n\n case 21:\n\n case 22:\n\n case 23:\n\n case 28:\n\n case 29:\n\n case 30:\n\n case 31:\n\n /* Source and destination the same. */\n\n gen_mov_F0_vreg(dp, rd);\n\n break;\n\n default:\n\n /* One source operand. */\n\n gen_mov_F0_vreg(dp, rm);\n\n break;\n\n }\n\n } else {\n\n /* Two source operands. */\n\n gen_mov_F0_vreg(dp, rn);\n\n gen_mov_F1_vreg(dp, rm);\n\n }\n\n\n\n for (;;) {\n\n /* Perform the calculation. */\n\n switch (op) {\n\n case 0: /* mac: fd + (fn * fm) */\n\n gen_vfp_mul(dp);\n\n gen_mov_F1_vreg(dp, rd);\n\n gen_vfp_add(dp);\n\n break;\n\n case 1: /* nmac: fd - (fn * fm) */\n\n gen_vfp_mul(dp);\n\n gen_vfp_neg(dp);\n\n gen_mov_F1_vreg(dp, rd);\n\n gen_vfp_add(dp);\n\n break;\n\n case 2: /* msc: -fd + (fn * fm) */\n\n gen_vfp_mul(dp);\n\n gen_mov_F1_vreg(dp, rd);\n\n gen_vfp_sub(dp);\n\n break;\n\n case 3: /* nmsc: -fd - (fn * fm) */\n\n gen_vfp_mul(dp);\n\n gen_vfp_neg(dp);\n\n gen_mov_F1_vreg(dp, rd);\n\n gen_vfp_sub(dp);\n\n break;\n\n case 4: /* mul: fn * fm */\n\n gen_vfp_mul(dp);\n\n break;\n\n case 5: /* nmul: -(fn * fm) */\n\n gen_vfp_mul(dp);\n\n gen_vfp_neg(dp);\n\n break;\n\n case 6: /* add: fn + fm */\n\n gen_vfp_add(dp);\n\n break;\n\n case 7: /* sub: fn - fm */\n\n gen_vfp_sub(dp);\n\n break;\n\n case 8: /* div: fn / fm */\n\n gen_vfp_div(dp);\n\n break;\n\n case 14: /* fconst */\n\n if (!arm_feature(env, ARM_FEATURE_VFP3))\n\n return 1;\n\n\n\n n = (insn << 12) & 0x80000000;\n\n i = ((insn >> 12) & 0x70) | (insn & 0xf);\n\n if (dp) {\n\n if (i & 0x40)\n\n i |= 0x3f80;\n\n else\n\n i |= 0x4000;\n\n n |= i << 16;\n\n tcg_gen_movi_i64(cpu_F0d, ((uint64_t)n) << 32);\n\n } else {\n\n if (i & 0x40)\n\n i |= 0x780;\n\n else\n\n i |= 0x800;\n\n n |= i << 19;\n\n tcg_gen_movi_i32(cpu_F0s, n);\n\n }\n\n break;\n\n case 15: /* extension space */\n\n switch (rn) {\n\n case 0: /* cpy */\n\n /* no-op */\n\n break;\n\n case 1: /* abs */\n\n gen_vfp_abs(dp);\n\n break;\n\n case 2: /* neg */\n\n gen_vfp_neg(dp);\n\n break;\n\n case 3: /* sqrt */\n\n gen_vfp_sqrt(dp);\n\n break;\n\n case 8: /* cmp */\n\n gen_vfp_cmp(dp);\n\n break;\n\n case 9: /* cmpe */\n\n gen_vfp_cmpe(dp);\n\n break;\n\n case 10: /* cmpz */\n\n gen_vfp_cmp(dp);\n\n break;\n\n case 11: /* cmpez */\n\n gen_vfp_F1_ld0(dp);\n\n gen_vfp_cmpe(dp);\n\n break;\n\n case 15: /* single<->double conversion */\n\n if (dp)\n\n gen_helper_vfp_fcvtsd(cpu_F0s, cpu_F0d, cpu_env);\n\n else\n\n gen_helper_vfp_fcvtds(cpu_F0d, cpu_F0s, cpu_env);\n\n break;\n\n case 16: /* fuito */\n\n gen_vfp_uito(dp);\n\n break;\n\n case 17: /* fsito */\n\n gen_vfp_sito(dp);\n\n break;\n\n case 20: /* fshto */\n\n if (!arm_feature(env, ARM_FEATURE_VFP3))\n\n return 1;\n\n gen_vfp_shto(dp, 16 - rm);\n\n break;\n\n case 21: /* fslto */\n\n if (!arm_feature(env, ARM_FEATURE_VFP3))\n\n return 1;\n\n gen_vfp_slto(dp, 32 - rm);\n\n break;\n\n case 22: /* fuhto */\n\n if (!arm_feature(env, ARM_FEATURE_VFP3))\n\n return 1;\n\n gen_vfp_uhto(dp, 16 - rm);\n\n break;\n\n case 23: /* fulto */\n\n if (!arm_feature(env, ARM_FEATURE_VFP3))\n\n return 1;\n\n gen_vfp_ulto(dp, 32 - rm);\n\n break;\n\n case 24: /* ftoui */\n\n gen_vfp_toui(dp);\n\n break;\n\n case 25: /* ftouiz */\n\n gen_vfp_touiz(dp);\n\n break;\n\n case 26: /* ftosi */\n\n gen_vfp_tosi(dp);\n\n break;\n\n case 27: /* ftosiz */\n\n gen_vfp_tosiz(dp);\n\n break;\n\n case 28: /* ftosh */\n\n if (!arm_feature(env, ARM_FEATURE_VFP3))\n\n return 1;\n\n gen_vfp_tosh(dp, 16 - rm);\n\n break;\n\n case 29: /* ftosl */\n\n if (!arm_feature(env, ARM_FEATURE_VFP3))\n\n return 1;\n\n gen_vfp_tosl(dp, 32 - rm);\n\n break;\n\n case 30: /* ftouh */\n\n if (!arm_feature(env, ARM_FEATURE_VFP3))\n\n return 1;\n\n gen_vfp_touh(dp, 16 - rm);\n\n break;\n\n case 31: /* ftoul */\n\n if (!arm_feature(env, ARM_FEATURE_VFP3))\n\n return 1;\n\n gen_vfp_toul(dp, 32 - rm);\n\n break;\n\n default: /* undefined */\n\n printf (\"rn:%d\\n\", rn);\n\n return 1;\n\n }\n\n break;\n\n default: /* undefined */\n\n printf (\"op:%d\\n\", op);\n\n return 1;\n\n }\n\n\n\n /* Write back the result. */\n\n if (op == 15 && (rn >= 8 && rn <= 11))\n\n ; /* Comparison, do nothing. */\n\n else if (op == 15 && rn > 17)\n\n /* Integer result. */\n\n gen_mov_vreg_F0(0, rd);\n\n else if (op == 15 && rn == 15)\n\n /* conversion */\n\n gen_mov_vreg_F0(!dp, rd);\n\n else\n\n gen_mov_vreg_F0(dp, rd);\n\n\n\n /* break out of the loop if we have finished */\n\n if (veclen == 0)\n\n break;\n\n\n\n if (op == 15 && delta_m == 0) {\n\n /* single source one-many */\n\n while (veclen--) {\n\n rd = ((rd + delta_d) & (bank_mask - 1))\n\n | (rd & bank_mask);\n\n gen_mov_vreg_F0(dp, rd);\n\n }\n\n break;\n\n }\n\n /* Setup the next operands. */\n\n veclen--;\n\n rd = ((rd + delta_d) & (bank_mask - 1))\n\n | (rd & bank_mask);\n\n\n\n if (op == 15) {\n\n /* One source operand. */\n\n rm = ((rm + delta_m) & (bank_mask - 1))\n\n | (rm & bank_mask);\n\n gen_mov_F0_vreg(dp, rm);\n\n } else {\n\n /* Two source operands. */\n\n rn = ((rn + delta_d) & (bank_mask - 1))\n\n | (rn & bank_mask);\n\n gen_mov_F0_vreg(dp, rn);\n\n if (delta_m) {\n\n rm = ((rm + delta_m) & (bank_mask - 1))\n\n | (rm & bank_mask);\n\n gen_mov_F1_vreg(dp, rm);\n\n }\n\n }\n\n }\n\n }\n\n break;\n\n case 0xc:\n\n case 0xd:\n\n if (dp && (insn & 0x03e00000) == 0x00400000) {\n\n /* two-register transfer */\n\n rn = (insn >> 16) & 0xf;\n\n rd = (insn >> 12) & 0xf;\n\n if (dp) {\n\n VFP_DREG_M(rm, insn);\n\n } else {\n\n rm = VFP_SREG_M(insn);\n\n }\n\n\n\n if (insn & ARM_CP_RW_BIT) {\n\n /* vfp->arm */\n\n if (dp) {\n\n gen_mov_F0_vreg(0, rm * 2);\n\n tmp = gen_vfp_mrs();\n\n store_reg(s, rd, tmp);\n\n gen_mov_F0_vreg(0, rm * 2 + 1);\n\n tmp = gen_vfp_mrs();\n\n store_reg(s, rn, tmp);\n\n } else {\n\n gen_mov_F0_vreg(0, rm);\n\n tmp = gen_vfp_mrs();\n\n store_reg(s, rn, tmp);\n\n gen_mov_F0_vreg(0, rm + 1);\n\n tmp = gen_vfp_mrs();\n\n store_reg(s, rd, tmp);\n\n }\n\n } else {\n\n /* arm->vfp */\n\n if (dp) {\n\n tmp = load_reg(s, rd);\n\n gen_vfp_msr(tmp);\n\n gen_mov_vreg_F0(0, rm * 2);\n\n tmp = load_reg(s, rn);\n\n gen_vfp_msr(tmp);\n\n gen_mov_vreg_F0(0, rm * 2 + 1);\n\n } else {\n\n tmp = load_reg(s, rn);\n\n gen_vfp_msr(tmp);\n\n gen_mov_vreg_F0(0, rm);\n\n tmp = load_reg(s, rd);\n\n gen_vfp_msr(tmp);\n\n gen_mov_vreg_F0(0, rm + 1);\n\n }\n\n }\n\n } else {\n\n /* Load/store */\n\n rn = (insn >> 16) & 0xf;\n\n if (dp)\n\n VFP_DREG_D(rd, insn);\n\n else\n\n rd = VFP_SREG_D(insn);\n\n if (s->thumb && rn == 15) {\n\n addr = new_tmp();\n\n tcg_gen_movi_i32(addr, s->pc & ~2);\n\n } else {\n\n addr = load_reg(s, rn);\n\n }\n\n if ((insn & 0x01200000) == 0x01000000) {\n\n /* Single load/store */\n\n offset = (insn & 0xff) << 2;\n\n if ((insn & (1 << 23)) == 0)\n\n offset = -offset;\n\n tcg_gen_addi_i32(addr, addr, offset);\n\n if (insn & (1 << 20)) {\n\n gen_vfp_ld(s, dp, addr);\n\n gen_mov_vreg_F0(dp, rd);\n\n } else {\n\n gen_mov_F0_vreg(dp, rd);\n\n gen_vfp_st(s, dp, addr);\n\n }\n\n dead_tmp(addr);\n\n } else {\n\n /* load/store multiple */\n\n if (dp)\n\n n = (insn >> 1) & 0x7f;\n\n else\n\n n = insn & 0xff;\n\n\n\n if (insn & (1 << 24)) /* pre-decrement */\n\n tcg_gen_addi_i32(addr, addr, -((insn & 0xff) << 2));\n\n\n\n if (dp)\n\n offset = 8;\n\n else\n\n offset = 4;\n\n for (i = 0; i < n; i++) {\n\n if (insn & ARM_CP_RW_BIT) {\n\n /* load */\n\n gen_vfp_ld(s, dp, addr);\n\n gen_mov_vreg_F0(dp, rd + i);\n\n } else {\n\n /* store */\n\n gen_mov_F0_vreg(dp, rd + i);\n\n gen_vfp_st(s, dp, addr);\n\n }\n\n tcg_gen_addi_i32(addr, addr, offset);\n\n }\n\n if (insn & (1 << 21)) {\n\n /* writeback */\n\n if (insn & (1 << 24))\n\n offset = -offset * n;\n\n else if (dp && (insn & 1))\n\n offset = 4;\n\n else\n\n offset = 0;\n\n\n\n if (offset != 0)\n\n tcg_gen_addi_i32(addr, addr, offset);\n\n store_reg(s, rn, addr);\n\n } else {\n\n dead_tmp(addr);\n\n }\n\n }\n\n }\n\n break;\n\n default:\n\n /* Should never happen. */\n\n return 1;\n\n }\n\n return 0;\n\n}", + "output": "1", + "index": 27111 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "av_cold int ff_mpv_encode_init(AVCodecContext *avctx)\n\n{\n\n MpegEncContext *s = avctx->priv_data;\n\n int i, ret, format_supported;\n\n\n\n mpv_encode_defaults(s);\n\n\n\n switch (avctx->codec_id) {\n\n case AV_CODEC_ID_MPEG2VIDEO:\n\n if (avctx->pix_fmt != AV_PIX_FMT_YUV420P &&\n\n avctx->pix_fmt != AV_PIX_FMT_YUV422P) {\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"only YUV420 and YUV422 are supported\\n\");\n\n return -1;\n\n }\n\n break;\n\n case AV_CODEC_ID_MJPEG:\n\n format_supported = 0;\n\n /* JPEG color space */\n\n if (avctx->pix_fmt == AV_PIX_FMT_YUVJ420P ||\n\n avctx->pix_fmt == AV_PIX_FMT_YUVJ422P ||\n\n (avctx->color_range == AVCOL_RANGE_JPEG &&\n\n (avctx->pix_fmt == AV_PIX_FMT_YUV420P ||\n\n avctx->pix_fmt == AV_PIX_FMT_YUV422P)))\n\n format_supported = 1;\n\n /* MPEG color space */\n\n else if (avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL &&\n\n (avctx->pix_fmt == AV_PIX_FMT_YUV420P ||\n\n avctx->pix_fmt == AV_PIX_FMT_YUV422P))\n\n format_supported = 1;\n\n\n\n if (!format_supported) {\n\n av_log(avctx, AV_LOG_ERROR, \"colorspace not supported in jpeg\\n\");\n\n return -1;\n\n }\n\n break;\n\n default:\n\n if (avctx->pix_fmt != AV_PIX_FMT_YUV420P) {\n\n av_log(avctx, AV_LOG_ERROR, \"only YUV420 is supported\\n\");\n\n return -1;\n\n }\n\n }\n\n\n\n switch (avctx->pix_fmt) {\n\n case AV_PIX_FMT_YUVJ422P:\n\n case AV_PIX_FMT_YUV422P:\n\n s->chroma_format = CHROMA_422;\n\n break;\n\n case AV_PIX_FMT_YUVJ420P:\n\n case AV_PIX_FMT_YUV420P:\n\n default:\n\n s->chroma_format = CHROMA_420;\n\n break;\n\n }\n\n\n\n s->bit_rate = avctx->bit_rate;\n\n s->width = avctx->width;\n\n s->height = avctx->height;\n\n if (avctx->gop_size > 600 &&\n\n avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"Warning keyframe interval too large! reducing it ...\\n\");\n\n avctx->gop_size = 600;\n\n }\n\n s->gop_size = avctx->gop_size;\n\n s->avctx = avctx;\n\n if (avctx->max_b_frames > MAX_B_FRAMES) {\n\n av_log(avctx, AV_LOG_ERROR, \"Too many B-frames requested, maximum \"\n\n \"is %d.\\n\", MAX_B_FRAMES);\n\n }\n\n s->max_b_frames = avctx->max_b_frames;\n\n s->codec_id = avctx->codec->id;\n\n s->strict_std_compliance = avctx->strict_std_compliance;\n\n s->quarter_sample = (avctx->flags & AV_CODEC_FLAG_QPEL) != 0;\n\n s->mpeg_quant = avctx->mpeg_quant;\n\n s->rtp_mode = !!avctx->rtp_payload_size;\n\n s->intra_dc_precision = avctx->intra_dc_precision;\n\n s->user_specified_pts = AV_NOPTS_VALUE;\n\n\n\n if (s->gop_size <= 1) {\n\n s->intra_only = 1;\n\n s->gop_size = 12;\n\n } else {\n\n s->intra_only = 0;\n\n }\n\n\n\n#if FF_API_MOTION_EST\n\nFF_DISABLE_DEPRECATION_WARNINGS\n\n s->me_method = avctx->me_method;\n\nFF_ENABLE_DEPRECATION_WARNINGS\n\n#endif\n\n\n\n /* Fixed QSCALE */\n\n s->fixed_qscale = !!(avctx->flags & AV_CODEC_FLAG_QSCALE);\n\n\n\n#if FF_API_MPV_OPT\n\n FF_DISABLE_DEPRECATION_WARNINGS\n\n if (avctx->border_masking != 0.0)\n\n s->border_masking = avctx->border_masking;\n\n FF_ENABLE_DEPRECATION_WARNINGS\n\n#endif\n\n\n\n s->adaptive_quant = (s->avctx->lumi_masking ||\n\n s->avctx->dark_masking ||\n\n s->avctx->temporal_cplx_masking ||\n\n s->avctx->spatial_cplx_masking ||\n\n s->avctx->p_masking ||\n\n s->border_masking ||\n\n (s->mpv_flags & FF_MPV_FLAG_QP_RD)) &&\n\n !s->fixed_qscale;\n\n\n\n s->loop_filter = !!(s->avctx->flags & AV_CODEC_FLAG_LOOP_FILTER);\n\n\n\n if (avctx->rc_max_rate && !avctx->rc_buffer_size) {\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"a vbv buffer size is needed, \"\n\n \"for encoding with a maximum bitrate\\n\");\n\n return -1;\n\n }\n\n\n\n if (avctx->rc_min_rate && avctx->rc_max_rate != avctx->rc_min_rate) {\n\n av_log(avctx, AV_LOG_INFO,\n\n \"Warning min_rate > 0 but min_rate != max_rate isn't recommended!\\n\");\n\n }\n\n\n\n if (avctx->rc_min_rate && avctx->rc_min_rate > avctx->bit_rate) {\n\n av_log(avctx, AV_LOG_ERROR, \"bitrate below min bitrate\\n\");\n\n return -1;\n\n }\n\n\n\n if (avctx->rc_max_rate && avctx->rc_max_rate < avctx->bit_rate) {\n\n av_log(avctx, AV_LOG_INFO, \"bitrate above max bitrate\\n\");\n\n return -1;\n\n }\n\n\n\n if (avctx->rc_max_rate &&\n\n avctx->rc_max_rate == avctx->bit_rate &&\n\n avctx->rc_max_rate != avctx->rc_min_rate) {\n\n av_log(avctx, AV_LOG_INFO,\n\n \"impossible bitrate constraints, this will fail\\n\");\n\n }\n\n\n\n if (avctx->rc_buffer_size &&\n\n avctx->bit_rate * (int64_t)avctx->time_base.num >\n\n avctx->rc_buffer_size * (int64_t)avctx->time_base.den) {\n\n av_log(avctx, AV_LOG_ERROR, \"VBV buffer too small for bitrate\\n\");\n\n return -1;\n\n }\n\n\n\n if (!s->fixed_qscale &&\n\n avctx->bit_rate * av_q2d(avctx->time_base) >\n\n avctx->bit_rate_tolerance) {\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"bitrate tolerance too small for bitrate\\n\");\n\n return -1;\n\n }\n\n\n\n if (s->avctx->rc_max_rate &&\n\n s->avctx->rc_min_rate == s->avctx->rc_max_rate &&\n\n (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||\n\n s->codec_id == AV_CODEC_ID_MPEG2VIDEO) &&\n\n 90000LL * (avctx->rc_buffer_size - 1) >\n\n s->avctx->rc_max_rate * 0xFFFFLL) {\n\n av_log(avctx, AV_LOG_INFO,\n\n \"Warning vbv_delay will be set to 0xFFFF (=VBR) as the \"\n\n \"specified vbv buffer is too large for the given bitrate!\\n\");\n\n }\n\n\n\n if ((s->avctx->flags & AV_CODEC_FLAG_4MV) && s->codec_id != AV_CODEC_ID_MPEG4 &&\n\n s->codec_id != AV_CODEC_ID_H263 && s->codec_id != AV_CODEC_ID_H263P &&\n\n s->codec_id != AV_CODEC_ID_FLV1) {\n\n av_log(avctx, AV_LOG_ERROR, \"4MV not supported by codec\\n\");\n\n return -1;\n\n }\n\n\n\n if (s->obmc && s->avctx->mb_decision != FF_MB_DECISION_SIMPLE) {\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"OBMC is only supported with simple mb decision\\n\");\n\n return -1;\n\n }\n\n\n\n if (s->quarter_sample && s->codec_id != AV_CODEC_ID_MPEG4) {\n\n av_log(avctx, AV_LOG_ERROR, \"qpel not supported by codec\\n\");\n\n return -1;\n\n }\n\n\n\n if (s->max_b_frames &&\n\n s->codec_id != AV_CODEC_ID_MPEG4 &&\n\n s->codec_id != AV_CODEC_ID_MPEG1VIDEO &&\n\n s->codec_id != AV_CODEC_ID_MPEG2VIDEO) {\n\n av_log(avctx, AV_LOG_ERROR, \"b frames not supported by codec\\n\");\n\n return -1;\n\n }\n\n\n\n if ((s->codec_id == AV_CODEC_ID_MPEG4 ||\n\n s->codec_id == AV_CODEC_ID_H263 ||\n\n s->codec_id == AV_CODEC_ID_H263P) &&\n\n (avctx->sample_aspect_ratio.num > 255 ||\n\n avctx->sample_aspect_ratio.den > 255)) {\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"Invalid pixel aspect ratio %i/%i, limit is 255/255\\n\",\n\n avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den);\n\n return -1;\n\n }\n\n\n\n if ((s->avctx->flags & (AV_CODEC_FLAG_INTERLACED_DCT | AV_CODEC_FLAG_INTERLACED_ME)) &&\n\n s->codec_id != AV_CODEC_ID_MPEG4 && s->codec_id != AV_CODEC_ID_MPEG2VIDEO) {\n\n av_log(avctx, AV_LOG_ERROR, \"interlacing not supported by codec\\n\");\n\n return -1;\n\n }\n\n\n\n // FIXME mpeg2 uses that too\n\n if (s->mpeg_quant && s->codec_id != AV_CODEC_ID_MPEG4) {\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"mpeg2 style quantization not supported by codec\\n\");\n\n return -1;\n\n }\n\n\n\n if ((s->mpv_flags & FF_MPV_FLAG_CBP_RD) && !avctx->trellis) {\n\n av_log(avctx, AV_LOG_ERROR, \"CBP RD needs trellis quant\\n\");\n\n return -1;\n\n }\n\n\n\n if ((s->mpv_flags & FF_MPV_FLAG_QP_RD) &&\n\n s->avctx->mb_decision != FF_MB_DECISION_RD) {\n\n av_log(avctx, AV_LOG_ERROR, \"QP RD needs mbd=2\\n\");\n\n return -1;\n\n }\n\n\n\n if (s->avctx->scenechange_threshold < 1000000000 &&\n\n (s->avctx->flags & AV_CODEC_FLAG_CLOSED_GOP)) {\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"closed gop with scene change detection are not supported yet, \"\n\n \"set threshold to 1000000000\\n\");\n\n return -1;\n\n }\n\n\n\n if (s->avctx->flags & AV_CODEC_FLAG_LOW_DELAY) {\n\n if (s->codec_id != AV_CODEC_ID_MPEG2VIDEO) {\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"low delay forcing is only available for mpeg2\\n\");\n\n return -1;\n\n }\n\n if (s->max_b_frames != 0) {\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"b frames cannot be used with low delay\\n\");\n\n return -1;\n\n }\n\n }\n\n\n\n if (s->q_scale_type == 1) {\n\n if (avctx->qmax > 12) {\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"non linear quant only supports qmax <= 12 currently\\n\");\n\n return -1;\n\n }\n\n }\n\n\n\n if (avctx->slices > 1 &&\n\n (avctx->codec_id == AV_CODEC_ID_FLV1 || avctx->codec_id == AV_CODEC_ID_H261)) {\n\n av_log(avctx, AV_LOG_ERROR, \"Multiple slices are not supported by this codec\\n\");\n\n return AVERROR(EINVAL);\n\n }\n\n\n\n if (s->avctx->thread_count > 1 &&\n\n s->codec_id != AV_CODEC_ID_MPEG4 &&\n\n s->codec_id != AV_CODEC_ID_MPEG1VIDEO &&\n\n s->codec_id != AV_CODEC_ID_MPEG2VIDEO &&\n\n (s->codec_id != AV_CODEC_ID_H263P)) {\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"multi threaded encoding not supported by codec\\n\");\n\n return -1;\n\n }\n\n\n\n if (s->avctx->thread_count < 1) {\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"automatic thread number detection not supported by codec,\"\n\n \"patch welcome\\n\");\n\n return -1;\n\n }\n\n\n\n if (s->avctx->thread_count > 1)\n\n s->rtp_mode = 1;\n\n\n\n if (!avctx->time_base.den || !avctx->time_base.num) {\n\n av_log(avctx, AV_LOG_ERROR, \"framerate not set\\n\");\n\n return -1;\n\n }\n\n\n\n if (avctx->b_frame_strategy && (avctx->flags & AV_CODEC_FLAG_PASS2)) {\n\n av_log(avctx, AV_LOG_INFO,\n\n \"notice: b_frame_strategy only affects the first pass\\n\");\n\n avctx->b_frame_strategy = 0;\n\n }\n\n\n\n i = av_gcd(avctx->time_base.den, avctx->time_base.num);\n\n if (i > 1) {\n\n av_log(avctx, AV_LOG_INFO, \"removing common factors from framerate\\n\");\n\n avctx->time_base.den /= i;\n\n avctx->time_base.num /= i;\n\n //return -1;\n\n }\n\n\n\n if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||\n\n s->codec_id == AV_CODEC_ID_MPEG2VIDEO || s->codec_id == AV_CODEC_ID_MJPEG) {\n\n // (a + x * 3 / 8) / x\n\n s->intra_quant_bias = 3 << (QUANT_BIAS_SHIFT - 3);\n\n s->inter_quant_bias = 0;\n\n } else {\n\n s->intra_quant_bias = 0;\n\n // (a - x / 4) / x\n\n s->inter_quant_bias = -(1 << (QUANT_BIAS_SHIFT - 2));\n\n }\n\n\n\n#if FF_API_QUANT_BIAS\n\nFF_DISABLE_DEPRECATION_WARNINGS\n\n if (avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)\n\n s->intra_quant_bias = avctx->intra_quant_bias;\n\n if (avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS)\n\n s->inter_quant_bias = avctx->inter_quant_bias;\n\nFF_ENABLE_DEPRECATION_WARNINGS\n\n#endif\n\n\n\n if (avctx->codec_id == AV_CODEC_ID_MPEG4 &&\n\n s->avctx->time_base.den > (1 << 16) - 1) {\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"timebase %d/%d not supported by MPEG 4 standard, \"\n\n \"the maximum admitted value for the timebase denominator \"\n\n \"is %d\\n\", s->avctx->time_base.num, s->avctx->time_base.den,\n\n (1 << 16) - 1);\n\n return -1;\n\n }\n\n s->time_increment_bits = av_log2(s->avctx->time_base.den - 1) + 1;\n\n\n\n switch (avctx->codec->id) {\n\n case AV_CODEC_ID_MPEG1VIDEO:\n\n s->out_format = FMT_MPEG1;\n\n s->low_delay = !!(s->avctx->flags & AV_CODEC_FLAG_LOW_DELAY);\n\n avctx->delay = s->low_delay ? 0 : (s->max_b_frames + 1);\n\n break;\n\n case AV_CODEC_ID_MPEG2VIDEO:\n\n s->out_format = FMT_MPEG1;\n\n s->low_delay = !!(s->avctx->flags & AV_CODEC_FLAG_LOW_DELAY);\n\n avctx->delay = s->low_delay ? 0 : (s->max_b_frames + 1);\n\n s->rtp_mode = 1;\n\n break;\n\n case AV_CODEC_ID_MJPEG:\n\n s->out_format = FMT_MJPEG;\n\n s->intra_only = 1; /* force intra only for jpeg */\n\n if (!CONFIG_MJPEG_ENCODER ||\n\n ff_mjpeg_encode_init(s) < 0)\n\n return -1;\n\n avctx->delay = 0;\n\n s->low_delay = 1;\n\n break;\n\n case AV_CODEC_ID_H261:\n\n if (!CONFIG_H261_ENCODER)\n\n return -1;\n\n if (ff_h261_get_picture_format(s->width, s->height) < 0) {\n\n av_log(avctx, AV_LOG_ERROR,\n\n \"The specified picture size of %dx%d is not valid for the \"\n\n \"H.261 codec.\\nValid sizes are 176x144, 352x288\\n\",\n\n s->width, s->height);\n\n return -1;\n\n }\n\n s->out_format = FMT_H261;\n\n avctx->delay = 0;\n\n s->low_delay = 1;\n\n s->rtp_mode = 0; /* Sliced encoding not supported */\n\n break;\n\n case AV_CODEC_ID_H263:\n\n if (!CONFIG_H263_ENCODER)\n\n return -1;\n\n if (ff_match_2uint16(ff_h263_format, FF_ARRAY_ELEMS(ff_h263_format),\n\n s->width, s->height) == 8) {\n\n av_log(avctx, AV_LOG_INFO,\n\n \"The specified picture size of %dx%d is not valid for \"\n\n \"the H.263 codec.\\nValid sizes are 128x96, 176x144, \"\n\n \"352x288, 704x576, and 1408x1152.\"\n\n \"Try H.263+.\\n\", s->width, s->height);\n\n return -1;\n\n }\n\n s->out_format = FMT_H263;\n\n avctx->delay = 0;\n\n s->low_delay = 1;\n\n break;\n\n case AV_CODEC_ID_H263P:\n\n s->out_format = FMT_H263;\n\n s->h263_plus = 1;\n\n /* Fx */\n\n s->h263_aic = (avctx->flags & AV_CODEC_FLAG_AC_PRED) ? 1 : 0;\n\n s->modified_quant = s->h263_aic;\n\n s->loop_filter = (avctx->flags & AV_CODEC_FLAG_LOOP_FILTER) ? 1 : 0;\n\n s->unrestricted_mv = s->obmc || s->loop_filter || s->umvplus;\n\n\n\n /* /Fx */\n\n /* These are just to be sure */\n\n avctx->delay = 0;\n\n s->low_delay = 1;\n\n break;\n\n case AV_CODEC_ID_FLV1:\n\n s->out_format = FMT_H263;\n\n s->h263_flv = 2; /* format = 1; 11-bit codes */\n\n s->unrestricted_mv = 1;\n\n s->rtp_mode = 0; /* don't allow GOB */\n\n avctx->delay = 0;\n\n s->low_delay = 1;\n\n break;\n\n case AV_CODEC_ID_RV10:\n\n s->out_format = FMT_H263;\n\n avctx->delay = 0;\n\n s->low_delay = 1;\n\n break;\n\n case AV_CODEC_ID_RV20:\n\n s->out_format = FMT_H263;\n\n avctx->delay = 0;\n\n s->low_delay = 1;\n\n s->modified_quant = 1;\n\n s->h263_aic = 1;\n\n s->h263_plus = 1;\n\n s->loop_filter = 1;\n\n s->unrestricted_mv = 0;\n\n break;\n\n case AV_CODEC_ID_MPEG4:\n\n s->out_format = FMT_H263;\n\n s->h263_pred = 1;\n\n s->unrestricted_mv = 1;\n\n s->low_delay = s->max_b_frames ? 0 : 1;\n\n avctx->delay = s->low_delay ? 0 : (s->max_b_frames + 1);\n\n break;\n\n case AV_CODEC_ID_MSMPEG4V2:\n\n s->out_format = FMT_H263;\n\n s->h263_pred = 1;\n\n s->unrestricted_mv = 1;\n\n s->msmpeg4_version = 2;\n\n avctx->delay = 0;\n\n s->low_delay = 1;\n\n break;\n\n case AV_CODEC_ID_MSMPEG4V3:\n\n s->out_format = FMT_H263;\n\n s->h263_pred = 1;\n\n s->unrestricted_mv = 1;\n\n s->msmpeg4_version = 3;\n\n s->flipflop_rounding = 1;\n\n avctx->delay = 0;\n\n s->low_delay = 1;\n\n break;\n\n case AV_CODEC_ID_WMV1:\n\n s->out_format = FMT_H263;\n\n s->h263_pred = 1;\n\n s->unrestricted_mv = 1;\n\n s->msmpeg4_version = 4;\n\n s->flipflop_rounding = 1;\n\n avctx->delay = 0;\n\n s->low_delay = 1;\n\n break;\n\n case AV_CODEC_ID_WMV2:\n\n s->out_format = FMT_H263;\n\n s->h263_pred = 1;\n\n s->unrestricted_mv = 1;\n\n s->msmpeg4_version = 5;\n\n s->flipflop_rounding = 1;\n\n avctx->delay = 0;\n\n s->low_delay = 1;\n\n break;\n\n default:\n\n return -1;\n\n }\n\n\n\n avctx->has_b_frames = !s->low_delay;\n\n\n\n s->encoding = 1;\n\n\n\n s->progressive_frame =\n\n s->progressive_sequence = !(avctx->flags & (AV_CODEC_FLAG_INTERLACED_DCT |\n\n AV_CODEC_FLAG_INTERLACED_ME) ||\n\n s->alternate_scan);\n\n\n\n /* init */\n\n ff_mpv_idct_init(s);\n\n if (ff_mpv_common_init(s) < 0)\n\n return -1;\n\n\n\n if (ARCH_X86)\n\n ff_mpv_encode_init_x86(s);\n\n\n\n ff_fdctdsp_init(&s->fdsp, avctx);\n\n ff_me_cmp_init(&s->mecc, avctx);\n\n ff_mpegvideoencdsp_init(&s->mpvencdsp, avctx);\n\n ff_pixblockdsp_init(&s->pdsp, avctx);\n\n ff_qpeldsp_init(&s->qdsp);\n\n\n\n if (s->msmpeg4_version) {\n\n FF_ALLOCZ_OR_GOTO(s->avctx, s->ac_stats,\n\n 2 * 2 * (MAX_LEVEL + 1) *\n\n (MAX_RUN + 1) * 2 * sizeof(int), fail);\n\n }\n\n FF_ALLOCZ_OR_GOTO(s->avctx, s->avctx->stats_out, 256, fail);\n\n\n\n FF_ALLOCZ_OR_GOTO(s->avctx, s->q_intra_matrix, 64 * 32 * sizeof(int), fail);\n\n FF_ALLOCZ_OR_GOTO(s->avctx, s->q_inter_matrix, 64 * 32 * sizeof(int), fail);\n\n FF_ALLOCZ_OR_GOTO(s->avctx, s->q_intra_matrix16, 64 * 32 * 2 * sizeof(uint16_t), fail);\n\n FF_ALLOCZ_OR_GOTO(s->avctx, s->q_inter_matrix16, 64 * 32 * 2 * sizeof(uint16_t), fail);\n\n FF_ALLOCZ_OR_GOTO(s->avctx, s->input_picture,\n\n MAX_PICTURE_COUNT * sizeof(Picture *), fail);\n\n FF_ALLOCZ_OR_GOTO(s->avctx, s->reordered_input_picture,\n\n MAX_PICTURE_COUNT * sizeof(Picture *), fail);\n\n\n\n if (s->avctx->noise_reduction) {\n\n FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_offset,\n\n 2 * 64 * sizeof(uint16_t), fail);\n\n }\n\n\n\n if (CONFIG_H263_ENCODER)\n\n ff_h263dsp_init(&s->h263dsp);\n\n if (!s->dct_quantize)\n\n s->dct_quantize = ff_dct_quantize_c;\n\n if (!s->denoise_dct)\n\n s->denoise_dct = denoise_dct_c;\n\n s->fast_dct_quantize = s->dct_quantize;\n\n if (avctx->trellis)\n\n s->dct_quantize = dct_quantize_trellis_c;\n\n\n\n if ((CONFIG_H263P_ENCODER || CONFIG_RV20_ENCODER) && s->modified_quant)\n\n s->chroma_qscale_table = ff_h263_chroma_qscale_table;\n\n\n\n s->quant_precision = 5;\n\n\n\n ff_set_cmp(&s->mecc, s->mecc.ildct_cmp, s->avctx->ildct_cmp);\n\n ff_set_cmp(&s->mecc, s->mecc.frame_skip_cmp, s->avctx->frame_skip_cmp);\n\n\n\n if (CONFIG_H261_ENCODER && s->out_format == FMT_H261)\n\n ff_h261_encode_init(s);\n\n if (CONFIG_H263_ENCODER && s->out_format == FMT_H263)\n\n ff_h263_encode_init(s);\n\n if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version)\n\n if ((ret = ff_msmpeg4_encode_init(s)) < 0)\n\n return ret;\n\n if ((CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)\n\n && s->out_format == FMT_MPEG1)\n\n ff_mpeg1_encode_init(s);\n\n\n\n /* init q matrix */\n\n for (i = 0; i < 64; i++) {\n\n int j = s->idsp.idct_permutation[i];\n\n if (CONFIG_MPEG4_ENCODER && s->codec_id == AV_CODEC_ID_MPEG4 &&\n\n s->mpeg_quant) {\n\n s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i];\n\n s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i];\n\n } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {\n\n s->intra_matrix[j] =\n\n s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];\n\n } else {\n\n /* mpeg1/2 */\n\n s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];\n\n s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];\n\n }\n\n if (s->avctx->intra_matrix)\n\n s->intra_matrix[j] = s->avctx->intra_matrix[i];\n\n if (s->avctx->inter_matrix)\n\n s->inter_matrix[j] = s->avctx->inter_matrix[i];\n\n }\n\n\n\n /* precompute matrix */\n\n /* for mjpeg, we do include qscale in the matrix */\n\n if (s->out_format != FMT_MJPEG) {\n\n ff_convert_matrix(s, s->q_intra_matrix, s->q_intra_matrix16,\n\n s->intra_matrix, s->intra_quant_bias, avctx->qmin,\n\n 31, 1);\n\n ff_convert_matrix(s, s->q_inter_matrix, s->q_inter_matrix16,\n\n s->inter_matrix, s->inter_quant_bias, avctx->qmin,\n\n 31, 0);\n\n }\n\n\n\n if (ff_rate_control_init(s) < 0)\n\n return -1;\n\n\n\n#if FF_API_ERROR_RATE\n\n FF_DISABLE_DEPRECATION_WARNINGS\n\n if (avctx->error_rate)\n\n s->error_rate = avctx->error_rate;\n\n FF_ENABLE_DEPRECATION_WARNINGS;\n\n#endif\n\n\n\n#if FF_API_NORMALIZE_AQP\n\n FF_DISABLE_DEPRECATION_WARNINGS\n\n if (avctx->flags & CODEC_FLAG_NORMALIZE_AQP)\n\n s->mpv_flags |= FF_MPV_FLAG_NAQ;\n\n FF_ENABLE_DEPRECATION_WARNINGS;\n\n#endif\n\n\n\n#if FF_API_MV0\n\n FF_DISABLE_DEPRECATION_WARNINGS\n\n if (avctx->flags & CODEC_FLAG_MV0)\n\n s->mpv_flags |= FF_MPV_FLAG_MV0;\n\n FF_ENABLE_DEPRECATION_WARNINGS\n\n#endif\n\n\n\n#if FF_API_MPV_OPT\n\n FF_DISABLE_DEPRECATION_WARNINGS\n\n if (avctx->rc_qsquish != 0.0)\n\n s->rc_qsquish = avctx->rc_qsquish;\n\n if (avctx->rc_qmod_amp != 0.0)\n\n s->rc_qmod_amp = avctx->rc_qmod_amp;\n\n if (avctx->rc_qmod_freq)\n\n s->rc_qmod_freq = avctx->rc_qmod_freq;\n\n if (avctx->rc_buffer_aggressivity != 1.0)\n\n s->rc_buffer_aggressivity = avctx->rc_buffer_aggressivity;\n\n if (avctx->rc_initial_cplx != 0.0)\n\n s->rc_initial_cplx = avctx->rc_initial_cplx;\n\n if (avctx->lmin)\n\n s->lmin = avctx->lmin;\n\n if (avctx->lmax)\n\n s->lmax = avctx->lmax;\n\n\n\n if (avctx->rc_eq) {\n\n av_freep(&s->rc_eq);\n\n s->rc_eq = av_strdup(avctx->rc_eq);\n\n if (!s->rc_eq)\n\n return AVERROR(ENOMEM);\n\n }\n\n FF_ENABLE_DEPRECATION_WARNINGS\n\n#endif\n\n\n\n if (avctx->b_frame_strategy == 2) {\n\n for (i = 0; i < s->max_b_frames + 2; i++) {\n\n s->tmp_frames[i] = av_frame_alloc();\n\n if (!s->tmp_frames[i])\n\n return AVERROR(ENOMEM);\n\n\n\n s->tmp_frames[i]->format = AV_PIX_FMT_YUV420P;\n\n s->tmp_frames[i]->width = s->width >> avctx->brd_scale;\n\n s->tmp_frames[i]->height = s->height >> avctx->brd_scale;\n\n\n\n ret = av_frame_get_buffer(s->tmp_frames[i], 32);\n\n if (ret < 0)\n\n return ret;\n\n }\n\n }\n\n\n\n return 0;\n\nfail:\n\n ff_mpv_encode_end(avctx);\n\n return AVERROR_UNKNOWN;\n\n}\n", + "output": "1", + "index": 8796 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void decode_bo_addrmode_post_pre_base(CPUTriCoreState *env,\n\n DisasContext *ctx)\n\n{\n\n uint32_t op2;\n\n uint32_t off10;\n\n int32_t r1, r2;\n\n TCGv temp;\n\n\n\n r1 = MASK_OP_BO_S1D(ctx->opcode);\n\n r2 = MASK_OP_BO_S2(ctx->opcode);\n\n off10 = MASK_OP_BO_OFF10_SEXT(ctx->opcode);\n\n op2 = MASK_OP_BO_OP2(ctx->opcode);\n\n\n\n switch (op2) {\n\n case OPC2_32_BO_CACHEA_WI_SHORTOFF:\n\n case OPC2_32_BO_CACHEA_W_SHORTOFF:\n\n case OPC2_32_BO_CACHEA_I_SHORTOFF:\n\n /* instruction to access the cache */\n\n break;\n\n case OPC2_32_BO_CACHEA_WI_POSTINC:\n\n case OPC2_32_BO_CACHEA_W_POSTINC:\n\n case OPC2_32_BO_CACHEA_I_POSTINC:\n\n /* instruction to access the cache, but we still need to handle\n\n the addressing mode */\n\n tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);\n\n break;\n\n case OPC2_32_BO_CACHEA_WI_PREINC:\n\n case OPC2_32_BO_CACHEA_W_PREINC:\n\n case OPC2_32_BO_CACHEA_I_PREINC:\n\n /* instruction to access the cache, but we still need to handle\n\n the addressing mode */\n\n tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);\n\n break;\n\n case OPC2_32_BO_CACHEI_WI_SHORTOFF:\n\n case OPC2_32_BO_CACHEI_W_SHORTOFF:\n\n /* TODO: Raise illegal opcode trap,\n\n if !tricore_feature(TRICORE_FEATURE_131) */\n\n break;\n\n case OPC2_32_BO_CACHEI_W_POSTINC:\n\n case OPC2_32_BO_CACHEI_WI_POSTINC:\n\n if (tricore_feature(env, TRICORE_FEATURE_131)) {\n\n tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);\n\n } /* TODO: else raise illegal opcode trap */\n\n break;\n\n case OPC2_32_BO_CACHEI_W_PREINC:\n\n case OPC2_32_BO_CACHEI_WI_PREINC:\n\n if (tricore_feature(env, TRICORE_FEATURE_131)) {\n\n tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);\n\n } /* TODO: else raise illegal opcode trap */\n\n break;\n\n case OPC2_32_BO_ST_A_SHORTOFF:\n\n gen_offset_st(ctx, cpu_gpr_a[r1], cpu_gpr_a[r2], off10, MO_LESL);\n\n break;\n\n case OPC2_32_BO_ST_A_POSTINC:\n\n tcg_gen_qemu_st_tl(cpu_gpr_a[r1], cpu_gpr_a[r2], ctx->mem_idx,\n\n MO_LESL);\n\n tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);\n\n break;\n\n case OPC2_32_BO_ST_A_PREINC:\n\n gen_st_preincr(ctx, cpu_gpr_a[r1], cpu_gpr_a[r2], off10, MO_LESL);\n\n break;\n\n case OPC2_32_BO_ST_B_SHORTOFF:\n\n gen_offset_st(ctx, cpu_gpr_d[r1], cpu_gpr_a[r2], off10, MO_UB);\n\n break;\n\n case OPC2_32_BO_ST_B_POSTINC:\n\n tcg_gen_qemu_st_tl(cpu_gpr_d[r1], cpu_gpr_a[r2], ctx->mem_idx,\n\n MO_UB);\n\n tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);\n\n break;\n\n case OPC2_32_BO_ST_B_PREINC:\n\n gen_st_preincr(ctx, cpu_gpr_d[r1], cpu_gpr_a[r2], off10, MO_UB);\n\n break;\n\n case OPC2_32_BO_ST_D_SHORTOFF:\n\n gen_offset_st_2regs(cpu_gpr_d[r1+1], cpu_gpr_d[r1], cpu_gpr_a[r2],\n\n off10, ctx);\n\n break;\n\n case OPC2_32_BO_ST_D_POSTINC:\n\n gen_st_2regs_64(cpu_gpr_d[r1+1], cpu_gpr_d[r1], cpu_gpr_a[r2], ctx);\n\n tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);\n\n break;\n\n case OPC2_32_BO_ST_D_PREINC:\n\n temp = tcg_temp_new();\n\n tcg_gen_addi_tl(temp, cpu_gpr_a[r2], off10);\n\n gen_st_2regs_64(cpu_gpr_d[r1+1], cpu_gpr_d[r1], temp, ctx);\n\n tcg_gen_mov_tl(cpu_gpr_a[r2], temp);\n\n tcg_temp_free(temp);\n\n break;\n\n case OPC2_32_BO_ST_DA_SHORTOFF:\n\n gen_offset_st_2regs(cpu_gpr_a[r1+1], cpu_gpr_a[r1], cpu_gpr_a[r2],\n\n off10, ctx);\n\n break;\n\n case OPC2_32_BO_ST_DA_POSTINC:\n\n gen_st_2regs_64(cpu_gpr_a[r1+1], cpu_gpr_a[r1], cpu_gpr_a[r2], ctx);\n\n tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);\n\n break;\n\n case OPC2_32_BO_ST_DA_PREINC:\n\n temp = tcg_temp_new();\n\n tcg_gen_addi_tl(temp, cpu_gpr_a[r2], off10);\n\n gen_st_2regs_64(cpu_gpr_a[r1+1], cpu_gpr_a[r1], temp, ctx);\n\n tcg_gen_mov_tl(cpu_gpr_a[r2], temp);\n\n tcg_temp_free(temp);\n\n break;\n\n case OPC2_32_BO_ST_H_SHORTOFF:\n\n gen_offset_st(ctx, cpu_gpr_d[r1], cpu_gpr_a[r2], off10, MO_LEUW);\n\n break;\n\n case OPC2_32_BO_ST_H_POSTINC:\n\n tcg_gen_qemu_st_tl(cpu_gpr_d[r1], cpu_gpr_a[r2], ctx->mem_idx,\n\n MO_LEUW);\n\n tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);\n\n break;\n\n case OPC2_32_BO_ST_H_PREINC:\n\n gen_st_preincr(ctx, cpu_gpr_d[r1], cpu_gpr_a[r2], off10, MO_LEUW);\n\n break;\n\n case OPC2_32_BO_ST_Q_SHORTOFF:\n\n temp = tcg_temp_new();\n\n tcg_gen_shri_tl(temp, cpu_gpr_d[r1], 16);\n\n gen_offset_st(ctx, temp, cpu_gpr_a[r2], off10, MO_LEUW);\n\n tcg_temp_free(temp);\n\n break;\n\n case OPC2_32_BO_ST_Q_POSTINC:\n\n temp = tcg_temp_new();\n\n tcg_gen_shri_tl(temp, cpu_gpr_d[r1], 16);\n\n tcg_gen_qemu_st_tl(temp, cpu_gpr_a[r2], ctx->mem_idx,\n\n MO_LEUW);\n\n tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);\n\n tcg_temp_free(temp);\n\n break;\n\n case OPC2_32_BO_ST_Q_PREINC:\n\n temp = tcg_temp_new();\n\n tcg_gen_shri_tl(temp, cpu_gpr_d[r1], 16);\n\n gen_st_preincr(ctx, temp, cpu_gpr_a[r2], off10, MO_LEUW);\n\n tcg_temp_free(temp);\n\n break;\n\n case OPC2_32_BO_ST_W_SHORTOFF:\n\n gen_offset_st(ctx, cpu_gpr_d[r1], cpu_gpr_a[r2], off10, MO_LEUL);\n\n break;\n\n case OPC2_32_BO_ST_W_POSTINC:\n\n tcg_gen_qemu_st_tl(cpu_gpr_d[r1], cpu_gpr_a[r2], ctx->mem_idx,\n\n MO_LEUL);\n\n tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);\n\n break;\n\n case OPC2_32_BO_ST_W_PREINC:\n\n gen_st_preincr(ctx, cpu_gpr_d[r1], cpu_gpr_a[r2], off10, MO_LEUL);\n\n break;\n\n }\n\n}\n", + "output": "1", + "index": 1965 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void gen_lea_modrm(DisasContext *s, int modrm, int *reg_ptr, int *offset_ptr)\n\n{\n\n int havesib;\n\n int base, disp;\n\n int index;\n\n int scale;\n\n int opreg;\n\n int mod, rm, code, override, must_add_seg;\n\n\n\n /* XXX: add a generation time variable to tell if base == 0 in DS/ES/SS */\n\n override = -1;\n\n must_add_seg = s->addseg;\n\n if (s->prefix & (PREFIX_CS | PREFIX_SS | PREFIX_DS | \n\n PREFIX_ES | PREFIX_FS | PREFIX_GS)) {\n\n if (s->prefix & PREFIX_ES)\n\n override = R_ES;\n\n else if (s->prefix & PREFIX_CS)\n\n override = R_CS;\n\n else if (s->prefix & PREFIX_SS)\n\n override = R_SS;\n\n else if (s->prefix & PREFIX_DS)\n\n override = R_DS;\n\n else if (s->prefix & PREFIX_FS)\n\n override = R_FS;\n\n else\n\n override = R_GS;\n\n must_add_seg = 1;\n\n }\n\n\n\n mod = (modrm >> 6) & 3;\n\n rm = modrm & 7;\n\n\n\n if (s->aflag) {\n\n\n\n havesib = 0;\n\n base = rm;\n\n index = 0;\n\n scale = 0;\n\n \n\n if (base == 4) {\n\n havesib = 1;\n\n code = ldub(s->pc++);\n\n scale = (code >> 6) & 3;\n\n index = (code >> 3) & 7;\n\n base = code & 7;\n\n }\n\n\n\n switch (mod) {\n\n case 0:\n\n if (base == 5) {\n\n base = -1;\n\n disp = ldl(s->pc);\n\n s->pc += 4;\n\n } else {\n\n disp = 0;\n\n }\n\n break;\n\n case 1:\n\n disp = (int8_t)ldub(s->pc++);\n\n break;\n\n default:\n\n case 2:\n\n disp = ldl(s->pc);\n\n s->pc += 4;\n\n break;\n\n }\n\n \n\n if (base >= 0) {\n\n gen_op_movl_A0_reg[base]();\n\n if (disp != 0)\n\n gen_op_addl_A0_im(disp);\n\n } else {\n\n gen_op_movl_A0_im(disp);\n\n }\n\n if (havesib && (index != 4 || scale != 0)) {\n\n gen_op_addl_A0_reg_sN[scale][index]();\n\n }\n\n if (must_add_seg) {\n\n if (override < 0) {\n\n if (base == R_EBP || base == R_ESP)\n\n override = R_SS;\n\n else\n\n override = R_DS;\n\n }\n\n gen_op_addl_A0_seg(offsetof(CPUX86State,seg_cache[override].base));\n\n }\n\n } else {\n\n switch (mod) {\n\n case 0:\n\n if (rm == 6) {\n\n disp = lduw(s->pc);\n\n s->pc += 2;\n\n gen_op_movl_A0_im(disp);\n\n rm = 0; /* avoid SS override */\n\n goto no_rm;\n\n } else {\n\n disp = 0;\n\n }\n\n break;\n\n case 1:\n\n disp = (int8_t)ldub(s->pc++);\n\n break;\n\n default:\n\n case 2:\n\n disp = lduw(s->pc);\n\n s->pc += 2;\n\n break;\n\n }\n\n switch(rm) {\n\n case 0:\n\n gen_op_movl_A0_reg[R_EBX]();\n\n gen_op_addl_A0_reg_sN[0][R_ESI]();\n\n break;\n\n case 1:\n\n gen_op_movl_A0_reg[R_EBX]();\n\n gen_op_addl_A0_reg_sN[0][R_EDI]();\n\n break;\n\n case 2:\n\n gen_op_movl_A0_reg[R_EBP]();\n\n gen_op_addl_A0_reg_sN[0][R_ESI]();\n\n break;\n\n case 3:\n\n gen_op_movl_A0_reg[R_EBP]();\n\n gen_op_addl_A0_reg_sN[0][R_EDI]();\n\n break;\n\n case 4:\n\n gen_op_movl_A0_reg[R_ESI]();\n\n break;\n\n case 5:\n\n gen_op_movl_A0_reg[R_EDI]();\n\n break;\n\n case 6:\n\n gen_op_movl_A0_reg[R_EBP]();\n\n break;\n\n default:\n\n case 7:\n\n gen_op_movl_A0_reg[R_EBX]();\n\n break;\n\n }\n\n if (disp != 0)\n\n gen_op_addl_A0_im(disp);\n\n gen_op_andl_A0_ffff();\n\n no_rm:\n\n if (must_add_seg) {\n\n if (override < 0) {\n\n if (rm == 2 || rm == 3 || rm == 6)\n\n override = R_SS;\n\n else\n\n override = R_DS;\n\n }\n\n gen_op_addl_A0_seg(offsetof(CPUX86State,seg_cache[override].base));\n\n }\n\n }\n\n\n\n opreg = OR_A0;\n\n disp = 0;\n\n *reg_ptr = opreg;\n\n *offset_ptr = disp;\n\n}\n", + "output": "0", + "index": 17135 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int bdrv_qed_do_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 qemu_co_queue_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 error_setg(errp, \"Unsupported QED features: %\" PRIx64,\n\n s->header.features & ~QED_FEATURE_MASK);\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->bs);\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 = ctz32(s->header.cluster_size);\n\n s->l2_mask = s->table_nelems - 1;\n\n s->l1_shift = s->l2_shift + ctz32(s->table_nelems);\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->bs) && !(flags & BDRV_O_INACTIVE)) {\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->bs);\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->bs) &&\n\n !(flags & BDRV_O_INACTIVE)) {\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": 2270 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static av_always_inline void hl_decode_mb_internal(H264Context *h, int simple){\n\n MpegEncContext * const s = &h->s;\n\n const int mb_x= s->mb_x;\n\n const int mb_y= s->mb_y;\n\n const int mb_xy= h->mb_xy;\n\n const int mb_type= s->current_picture.mb_type[mb_xy];\n\n uint8_t *dest_y, *dest_cb, *dest_cr;\n\n int linesize, uvlinesize /*dct_offset*/;\n\n int i;\n\n int *block_offset = &h->block_offset[0];\n\n const int transform_bypass = !simple && (s->qscale == 0 && h->sps.transform_bypass);\n\n const int is_h264 = simple || s->codec_id == CODEC_ID_H264;\n\n void (*idct_add)(uint8_t *dst, DCTELEM *block, int stride);\n\n void (*idct_dc_add)(uint8_t *dst, DCTELEM *block, int stride);\n\n\n\n dest_y = s->current_picture.data[0] + (mb_x + mb_y * s->linesize ) * 16;\n\n dest_cb = s->current_picture.data[1] + (mb_x + mb_y * s->uvlinesize) * 8;\n\n dest_cr = s->current_picture.data[2] + (mb_x + mb_y * s->uvlinesize) * 8;\n\n\n\n s->dsp.prefetch(dest_y + (s->mb_x&3)*4*s->linesize + 64, s->linesize, 4);\n\n s->dsp.prefetch(dest_cb + (s->mb_x&7)*s->uvlinesize + 64, dest_cr - dest_cb, 2);\n\n\n\n if (!simple && MB_FIELD) {\n\n linesize = h->mb_linesize = s->linesize * 2;\n\n uvlinesize = h->mb_uvlinesize = s->uvlinesize * 2;\n\n block_offset = &h->block_offset[24];\n\n if(mb_y&1){ //FIXME move out of this function?\n\n dest_y -= s->linesize*15;\n\n dest_cb-= s->uvlinesize*7;\n\n dest_cr-= s->uvlinesize*7;\n\n }\n\n if(FRAME_MBAFF) {\n\n int list;\n\n for(list=0; listlist_count; list++){\n\n if(!USES_LIST(mb_type, list))\n\n continue;\n\n if(IS_16X16(mb_type)){\n\n int8_t *ref = &h->ref_cache[list][scan8[0]];\n\n fill_rectangle(ref, 4, 4, 8, (16+*ref)^(s->mb_y&1), 1);\n\n }else{\n\n for(i=0; i<16; i+=4){\n\n int ref = h->ref_cache[list][scan8[i]];\n\n if(ref >= 0)\n\n fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2, 8, (16+ref)^(s->mb_y&1), 1);\n\n }\n\n }\n\n }\n\n }\n\n } else {\n\n linesize = h->mb_linesize = s->linesize;\n\n uvlinesize = h->mb_uvlinesize = s->uvlinesize;\n\n// dct_offset = s->linesize * 16;\n\n }\n\n\n\n if (!simple && IS_INTRA_PCM(mb_type)) {\n\n for (i=0; i<16; i++) {\n\n memcpy(dest_y + i* linesize, h->mb + i*8, 16);\n\n }\n\n for (i=0; i<8; i++) {\n\n memcpy(dest_cb+ i*uvlinesize, h->mb + 128 + i*4, 8);\n\n memcpy(dest_cr+ i*uvlinesize, h->mb + 160 + i*4, 8);\n\n }\n\n } else {\n\n if(IS_INTRA(mb_type)){\n\n if(h->deblocking_filter)\n\n xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 1, simple);\n\n\n\n if(simple || !ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){\n\n h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cb, uvlinesize);\n\n h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cr, uvlinesize);\n\n }\n\n\n\n if(IS_INTRA4x4(mb_type)){\n\n if(simple || !s->encoding){\n\n if(IS_8x8DCT(mb_type)){\n\n if(transform_bypass){\n\n idct_dc_add =\n\n idct_add = s->dsp.add_pixels8;\n\n }else if(IS_8x8DCT(mb_type)){\n\n idct_dc_add = s->dsp.h264_idct8_dc_add;\n\n idct_add = s->dsp.h264_idct8_add;\n\n }\n\n for(i=0; i<16; i+=4){\n\n uint8_t * const ptr= dest_y + block_offset[i];\n\n const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ];\n\n if(transform_bypass && h->sps.profile_idc==244 && dir<=1){\n\n h->hpc.pred8x8l_add[dir](ptr, h->mb + i*16, linesize);\n\n }else{\n\n const int nnz = h->non_zero_count_cache[ scan8[i] ];\n\n h->hpc.pred8x8l[ dir ](ptr, (h->topleft_samples_available<topright_samples_available<mb[i*16])\n\n idct_dc_add(ptr, h->mb + i*16, linesize);\n\n else\n\n idct_add (ptr, h->mb + i*16, linesize);\n\n }\n\n }\n\n }\n\n }else{\n\n if(transform_bypass){\n\n idct_dc_add =\n\n idct_add = s->dsp.add_pixels4;\n\n }else{\n\n idct_dc_add = s->dsp.h264_idct_dc_add;\n\n idct_add = s->dsp.h264_idct_add;\n\n }\n\n for(i=0; i<16; i++){\n\n uint8_t * const ptr= dest_y + block_offset[i];\n\n const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ];\n\n\n\n if(transform_bypass && h->sps.profile_idc==244 && dir<=1){\n\n h->hpc.pred4x4_add[dir](ptr, h->mb + i*16, linesize);\n\n }else{\n\n uint8_t *topright;\n\n int nnz, tr;\n\n if(dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED){\n\n const int topright_avail= (h->topright_samples_available<hpc.pred4x4[ dir ](ptr, topright, linesize);\n\n nnz = h->non_zero_count_cache[ scan8[i] ];\n\n if(nnz){\n\n if(is_h264){\n\n if(nnz == 1 && h->mb[i*16])\n\n idct_dc_add(ptr, h->mb + i*16, linesize);\n\n else\n\n idct_add (ptr, h->mb + i*16, linesize);\n\n }else\n\n svq3_add_idct_c(ptr, h->mb + i*16, linesize, s->qscale, 0);\n\n }\n\n }\n\n }\n\n }\n\n }\n\n }else{\n\n h->hpc.pred16x16[ h->intra16x16_pred_mode ](dest_y , linesize);\n\n if(is_h264){\n\n if(!transform_bypass)\n\n h264_luma_dc_dequant_idct_c(h->mb, s->qscale, h->dequant4_coeff[0][s->qscale][0]);\n\n }else\n\n svq3_luma_dc_dequant_idct_c(h->mb, s->qscale);\n\n }\n\n if(h->deblocking_filter)\n\n xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 0, simple);\n\n }else if(is_h264){\n\n hl_motion(h, dest_y, dest_cb, dest_cr,\n\n s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab,\n\n s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab,\n\n s->dsp.weight_h264_pixels_tab, s->dsp.biweight_h264_pixels_tab);\n\n }\n\n\n\n\n\n if(!IS_INTRA4x4(mb_type)){\n\n if(is_h264){\n\n if(IS_INTRA16x16(mb_type)){\n\n if(transform_bypass){\n\n if(h->sps.profile_idc==244 && (h->intra16x16_pred_mode==VERT_PRED8x8 || h->intra16x16_pred_mode==HOR_PRED8x8)){\n\n h->hpc.pred16x16_add[h->intra16x16_pred_mode](dest_y, block_offset, h->mb, linesize);\n\n }else{\n\n for(i=0; i<16; i++){\n\n if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16])\n\n s->dsp.add_pixels4(dest_y + block_offset[i], h->mb + i*16, linesize);\n\n }\n\n }\n\n }else{\n\n s->dsp.h264_idct_add16intra(dest_y, block_offset, h->mb, linesize, h->non_zero_count_cache);\n\n }\n\n }else if(h->cbp&15){\n\n if(transform_bypass){\n\n const int di = IS_8x8DCT(mb_type) ? 4 : 1;\n\n idct_add= IS_8x8DCT(mb_type) ? s->dsp.add_pixels8 : s->dsp.add_pixels4;\n\n for(i=0; i<16; i+=di){\n\n if(h->non_zero_count_cache[ scan8[i] ]){\n\n idct_add(dest_y + block_offset[i], h->mb + i*16, linesize);\n\n }\n\n }\n\n }else{\n\n if(IS_8x8DCT(mb_type)){\n\n s->dsp.h264_idct8_add4(dest_y, block_offset, h->mb, linesize, h->non_zero_count_cache);\n\n }else{\n\n s->dsp.h264_idct_add16(dest_y, block_offset, h->mb, linesize, h->non_zero_count_cache);\n\n }\n\n }\n\n }\n\n }else{\n\n for(i=0; i<16; i++){\n\n if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){ //FIXME benchmark weird rule, & below\n\n uint8_t * const ptr= dest_y + block_offset[i];\n\n svq3_add_idct_c(ptr, h->mb + i*16, linesize, s->qscale, IS_INTRA(mb_type) ? 1 : 0);\n\n }\n\n }\n\n }\n\n }\n\n\n\n if((simple || !ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)) && (h->cbp&0x30)){\n\n uint8_t *dest[2] = {dest_cb, dest_cr};\n\n if(transform_bypass){\n\n idct_add = idct_dc_add = s->dsp.add_pixels4;\n\n }else{\n\n idct_add = s->dsp.h264_idct_add;\n\n idct_dc_add = s->dsp.h264_idct_dc_add;\n\n chroma_dc_dequant_idct_c(h->mb + 16*16, h->chroma_qp[0], h->dequant4_coeff[IS_INTRA(mb_type) ? 1:4][h->chroma_qp[0]][0]);\n\n chroma_dc_dequant_idct_c(h->mb + 16*16+4*16, h->chroma_qp[1], h->dequant4_coeff[IS_INTRA(mb_type) ? 2:5][h->chroma_qp[1]][0]);\n\n }\n\n if(is_h264){\n\n if(transform_bypass && IS_INTRA(mb_type) && h->sps.profile_idc==244 && (h->chroma_pred_mode==VERT_PRED8x8 || h->chroma_pred_mode==HOR_PRED8x8)){\n\n h->hpc.pred8x8_add[h->chroma_pred_mode](dest[0], block_offset + 16, h->mb + 16*16, uvlinesize);\n\n h->hpc.pred8x8_add[h->chroma_pred_mode](dest[1], block_offset + 20, h->mb + 20*16, uvlinesize);\n\n }else{\n\n for(i=16; i<16+8; i++){\n\n if(h->non_zero_count_cache[ scan8[i] ])\n\n idct_add (dest[(i&4)>>2] + block_offset[i], h->mb + i*16, uvlinesize);\n\n else if(h->mb[i*16])\n\n idct_dc_add(dest[(i&4)>>2] + block_offset[i], h->mb + i*16, uvlinesize);\n\n }\n\n }\n\n }else{\n\n for(i=16; i<16+8; i++){\n\n if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){\n\n uint8_t * const ptr= dest[(i&4)>>2] + block_offset[i];\n\n svq3_add_idct_c(ptr, h->mb + i*16, uvlinesize, chroma_qp[s->qscale + 12] - 12, 2);\n\n }\n\n }\n\n }\n\n }\n\n }\n\n if(h->deblocking_filter) {\n\n backup_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, simple);\n\n fill_caches(h, mb_type, 1); //FIXME don't fill stuff which isn't used by filter_mb\n\n h->chroma_qp[0] = get_chroma_qp(h, 0, s->current_picture.qscale_table[mb_xy]);\n\n h->chroma_qp[1] = get_chroma_qp(h, 1, s->current_picture.qscale_table[mb_xy]);\n\n if (!simple && FRAME_MBAFF) {\n\n filter_mb (h, mb_x, mb_y, dest_y, dest_cb, dest_cr, linesize, uvlinesize);\n\n } else {\n\n filter_mb_fast(h, mb_x, mb_y, dest_y, dest_cb, dest_cr, linesize, uvlinesize);\n\n }\n\n }\n\n}\n", + "output": "0", + "index": 5761 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void spapr_populate_pa_features(CPUPPCState *env, void *fdt, int offset)\n\n{\n\n uint8_t pa_features_206[] = { 6, 0,\n\n 0xf6, 0x1f, 0xc7, 0x00, 0x80, 0xc0 };\n\n uint8_t pa_features_207[] = { 24, 0,\n\n 0xf6, 0x1f, 0xc7, 0xc0, 0x80, 0xf0,\n\n 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,\n\n 0x00, 0x00, 0x00, 0x00, 0x80, 0x00,\n\n 0x80, 0x00, 0x80, 0x00, 0x00, 0x00 };\n\n uint8_t pa_features_300[] = { 66, 0,\n\n /* 0: MMU|FPU|SLB|RUN|DABR|NX, 1: fri[nzpm]|DABRX|SPRG3|SLB0|PP110 */\n\n /* 2: VPM|DS205|PPR|DS202|DS206, 3: LSD|URG, SSO, 5: LE|CFAR|EB|LSQ */\n\n 0xf6, 0x1f, 0xc7, 0xc0, 0x80, 0xf0, /* 0 - 5 */\n\n /* 6: DS207 */\n\n 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, /* 6 - 11 */\n\n /* 16: Vector */\n\n 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, /* 12 - 17 */\n\n /* 18: Vec. Scalar, 20: Vec. XOR, 22: HTM */\n\n 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 18 - 23 */\n\n /* 24: Ext. Dec, 26: 64 bit ftrs, 28: PM ftrs */\n\n 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 24 - 29 */\n\n /* 30: MMR, 32: LE atomic, 34: EBB + ext EBB */\n\n 0x80, 0x00, 0x80, 0x00, 0xC0, 0x00, /* 30 - 35 */\n\n /* 36: SPR SO, 38: Copy/Paste, 40: Radix MMU */\n\n 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 36 - 41 */\n\n /* 42: PM, 44: PC RA, 46: SC vec'd */\n\n 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 42 - 47 */\n\n /* 48: SIMD, 50: QP BFP, 52: String */\n\n 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 48 - 53 */\n\n /* 54: DecFP, 56: DecI, 58: SHA */\n\n 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 54 - 59 */\n\n /* 60: NM atomic, 62: RNG */\n\n 0x80, 0x00, 0x80, 0x00, 0x00, 0x00, /* 60 - 65 */\n\n };\n\n uint8_t *pa_features;\n\n size_t pa_size;\n\n\n\n switch (POWERPC_MMU_VER(env->mmu_model)) {\n\n case POWERPC_MMU_VER_2_06:\n\n pa_features = pa_features_206;\n\n pa_size = sizeof(pa_features_206);\n\n break;\n\n case POWERPC_MMU_VER_2_07:\n\n pa_features = pa_features_207;\n\n pa_size = sizeof(pa_features_207);\n\n break;\n\n case POWERPC_MMU_VER_3_00:\n\n pa_features = pa_features_300;\n\n pa_size = sizeof(pa_features_300);\n\n break;\n\n default:\n\n return;\n\n }\n\n\n\n if (env->ci_large_pages) {\n\n /*\n\n * Note: we keep CI large pages off by default because a 64K capable\n\n * guest provisioned with large pages might otherwise try to map a qemu\n\n * framebuffer (or other kind of memory mapped PCI BAR) using 64K pages\n\n * even if that qemu runs on a 4k host.\n\n * We dd this bit back here if we are confident this is not an issue\n\n */\n\n pa_features[3] |= 0x20;\n\n }\n\n if (kvmppc_has_cap_htm() && pa_size > 24) {\n\n pa_features[24] |= 0x80; /* Transactional memory support */\n\n }\n\n\n\n _FDT((fdt_setprop(fdt, offset, \"ibm,pa-features\", pa_features, pa_size)));\n\n}\n", + "output": "1", + "index": 3688 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void exynos4210_fimd_write(void *opaque, target_phys_addr_t offset,\n\n uint64_t val, unsigned size)\n\n{\n\n Exynos4210fimdState *s = (Exynos4210fimdState *)opaque;\n\n unsigned w, i;\n\n uint32_t old_value;\n\n\n\n DPRINT_L2(\"write offset 0x%08x, value=%llu(0x%08llx)\\n\", offset,\n\n (long long unsigned int)val, (long long unsigned int)val);\n\n\n\n switch (offset) {\n\n case FIMD_VIDCON0:\n\n if ((val & FIMD_VIDCON0_ENVID_MASK) == FIMD_VIDCON0_ENVID_MASK) {\n\n exynos4210_fimd_enable(s, true);\n\n } else {\n\n if ((val & FIMD_VIDCON0_ENVID) == 0) {\n\n exynos4210_fimd_enable(s, false);\n\n }\n\n }\n\n s->vidcon[0] = val;\n\n break;\n\n case FIMD_VIDCON1:\n\n /* Leave read-only bits as is */\n\n val = (val & (~FIMD_VIDCON1_ROMASK)) |\n\n (s->vidcon[1] & FIMD_VIDCON1_ROMASK);\n\n s->vidcon[1] = val;\n\n break;\n\n case FIMD_VIDCON2 ... FIMD_VIDCON3:\n\n s->vidcon[(offset) >> 2] = val;\n\n break;\n\n case FIMD_VIDTCON_START ... FIMD_VIDTCON_END:\n\n s->vidtcon[(offset - FIMD_VIDTCON_START) >> 2] = val;\n\n break;\n\n case FIMD_WINCON_START ... FIMD_WINCON_END:\n\n w = (offset - FIMD_WINCON_START) >> 2;\n\n /* Window's current buffer ID */\n\n i = fimd_get_buffer_id(&s->window[w]);\n\n old_value = s->window[w].wincon;\n\n val = (val & ~FIMD_WINCON_ROMASK) |\n\n (s->window[w].wincon & FIMD_WINCON_ROMASK);\n\n if (w == 0) {\n\n /* Window 0 wincon ALPHA_MUL bit must always be 0 */\n\n val &= ~FIMD_WINCON_ALPHA_MUL;\n\n }\n\n exynos4210_fimd_trace_bppmode(s, w, val);\n\n switch (val & FIMD_WINCON_BUFSELECT) {\n\n case FIMD_WINCON_BUF0_SEL:\n\n val &= ~FIMD_WINCON_BUFSTATUS;\n\n break;\n\n case FIMD_WINCON_BUF1_SEL:\n\n val = (val & ~FIMD_WINCON_BUFSTAT_H) | FIMD_WINCON_BUFSTAT_L;\n\n break;\n\n case FIMD_WINCON_BUF2_SEL:\n\n if (val & FIMD_WINCON_BUFMODE) {\n\n val = (val & ~FIMD_WINCON_BUFSTAT_L) | FIMD_WINCON_BUFSTAT_H;\n\n }\n\n break;\n\n default:\n\n break;\n\n }\n\n s->window[w].wincon = val;\n\n exynos4210_fimd_update_win_bppmode(s, w);\n\n fimd_update_get_alpha(s, w);\n\n if ((i != fimd_get_buffer_id(&s->window[w])) ||\n\n (!(old_value & FIMD_WINCON_ENWIN) && (s->window[w].wincon &\n\n FIMD_WINCON_ENWIN))) {\n\n fimd_update_memory_section(s, w);\n\n }\n\n break;\n\n case FIMD_SHADOWCON:\n\n old_value = s->shadowcon;\n\n s->shadowcon = val;\n\n for (w = 0; w < NUM_OF_WINDOWS; w++) {\n\n if (FIMD_WINDOW_PROTECTED(old_value, w) &&\n\n !FIMD_WINDOW_PROTECTED(s->shadowcon, w)) {\n\n fimd_update_memory_section(s, w);\n\n }\n\n }\n\n break;\n\n case FIMD_WINCHMAP:\n\n s->winchmap = val;\n\n break;\n\n case FIMD_VIDOSD_START ... FIMD_VIDOSD_END:\n\n w = (offset - FIMD_VIDOSD_START) >> 4;\n\n i = ((offset - FIMD_VIDOSD_START) & 0xF) >> 2;\n\n switch (i) {\n\n case 0:\n\n old_value = s->window[w].lefttop_y;\n\n s->window[w].lefttop_x = (val >> FIMD_VIDOSD_HOR_SHIFT) &\n\n FIMD_VIDOSD_COORD_MASK;\n\n s->window[w].lefttop_y = (val >> FIMD_VIDOSD_VER_SHIFT) &\n\n FIMD_VIDOSD_COORD_MASK;\n\n if (s->window[w].lefttop_y != old_value) {\n\n fimd_update_memory_section(s, w);\n\n }\n\n break;\n\n case 1:\n\n old_value = s->window[w].rightbot_y;\n\n s->window[w].rightbot_x = (val >> FIMD_VIDOSD_HOR_SHIFT) &\n\n FIMD_VIDOSD_COORD_MASK;\n\n s->window[w].rightbot_y = (val >> FIMD_VIDOSD_VER_SHIFT) &\n\n FIMD_VIDOSD_COORD_MASK;\n\n if (s->window[w].rightbot_y != old_value) {\n\n fimd_update_memory_section(s, w);\n\n }\n\n break;\n\n case 2:\n\n if (w == 0) {\n\n s->window[w].osdsize = val;\n\n } else {\n\n s->window[w].alpha_val[0] =\n\n unpack_upper_4((val & FIMD_VIDOSD_ALPHA_AEN0) >>\n\n FIMD_VIDOSD_AEN0_SHIFT) |\n\n (s->window[w].alpha_val[0] & FIMD_VIDALPHA_ALPHA_LOWER);\n\n s->window[w].alpha_val[1] =\n\n unpack_upper_4(val & FIMD_VIDOSD_ALPHA_AEN1) |\n\n (s->window[w].alpha_val[1] & FIMD_VIDALPHA_ALPHA_LOWER);\n\n }\n\n break;\n\n case 3:\n\n if (w != 1 && w != 2) {\n\n DPRINT_ERROR(\"Bad write offset 0x%08x\\n\", offset);\n\n return;\n\n }\n\n s->window[w].osdsize = val;\n\n break;\n\n }\n\n break;\n\n case FIMD_VIDWADD0_START ... FIMD_VIDWADD0_END:\n\n w = (offset - FIMD_VIDWADD0_START) >> 3;\n\n i = ((offset - FIMD_VIDWADD0_START) >> 2) & 1;\n\n if (i == fimd_get_buffer_id(&s->window[w]) &&\n\n s->window[w].buf_start[i] != val) {\n\n s->window[w].buf_start[i] = val;\n\n fimd_update_memory_section(s, w);\n\n break;\n\n }\n\n s->window[w].buf_start[i] = val;\n\n break;\n\n case FIMD_VIDWADD1_START ... FIMD_VIDWADD1_END:\n\n w = (offset - FIMD_VIDWADD1_START) >> 3;\n\n i = ((offset - FIMD_VIDWADD1_START) >> 2) & 1;\n\n s->window[w].buf_end[i] = val;\n\n break;\n\n case FIMD_VIDWADD2_START ... FIMD_VIDWADD2_END:\n\n w = (offset - FIMD_VIDWADD2_START) >> 2;\n\n if (((val & FIMD_VIDWADD2_PAGEWIDTH) != s->window[w].virtpage_width) ||\n\n (((val >> FIMD_VIDWADD2_OFFSIZE_SHIFT) & FIMD_VIDWADD2_OFFSIZE) !=\n\n s->window[w].virtpage_offsize)) {\n\n s->window[w].virtpage_width = val & FIMD_VIDWADD2_PAGEWIDTH;\n\n s->window[w].virtpage_offsize =\n\n (val >> FIMD_VIDWADD2_OFFSIZE_SHIFT) & FIMD_VIDWADD2_OFFSIZE;\n\n fimd_update_memory_section(s, w);\n\n }\n\n break;\n\n case FIMD_VIDINTCON0:\n\n s->vidintcon[0] = val;\n\n break;\n\n case FIMD_VIDINTCON1:\n\n s->vidintcon[1] &= ~(val & 7);\n\n exynos4210_fimd_update_irq(s);\n\n break;\n\n case FIMD_WKEYCON_START ... FIMD_WKEYCON_END:\n\n w = ((offset - FIMD_WKEYCON_START) >> 3) + 1;\n\n i = ((offset - FIMD_WKEYCON_START) >> 2) & 1;\n\n s->window[w].keycon[i] = val;\n\n break;\n\n case FIMD_WKEYALPHA_START ... FIMD_WKEYALPHA_END:\n\n w = ((offset - FIMD_WKEYALPHA_START) >> 2) + 1;\n\n s->window[w].keyalpha = val;\n\n break;\n\n case FIMD_DITHMODE:\n\n s->dithmode = val;\n\n break;\n\n case FIMD_WINMAP_START ... FIMD_WINMAP_END:\n\n w = (offset - FIMD_WINMAP_START) >> 2;\n\n old_value = s->window[w].winmap;\n\n s->window[w].winmap = val;\n\n if ((val & FIMD_WINMAP_EN) ^ (old_value & FIMD_WINMAP_EN)) {\n\n exynos4210_fimd_invalidate(s);\n\n exynos4210_fimd_update_win_bppmode(s, w);\n\n exynos4210_fimd_trace_bppmode(s, w, 0xFFFFFFFF);\n\n exynos4210_fimd_update(s);\n\n }\n\n break;\n\n case FIMD_WPALCON_HIGH ... FIMD_WPALCON_LOW:\n\n i = (offset - FIMD_WPALCON_HIGH) >> 2;\n\n s->wpalcon[i] = val;\n\n if (s->wpalcon[1] & FIMD_WPALCON_UPDATEEN) {\n\n for (w = 0; w < NUM_OF_WINDOWS; w++) {\n\n exynos4210_fimd_update_win_bppmode(s, w);\n\n fimd_update_get_alpha(s, w);\n\n }\n\n }\n\n break;\n\n case FIMD_TRIGCON:\n\n val = (val & ~FIMD_TRIGCON_ROMASK) | (s->trigcon & FIMD_TRIGCON_ROMASK);\n\n s->trigcon = val;\n\n break;\n\n case FIMD_I80IFCON_START ... FIMD_I80IFCON_END:\n\n s->i80ifcon[(offset - FIMD_I80IFCON_START) >> 2] = val;\n\n break;\n\n case FIMD_COLORGAINCON:\n\n s->colorgaincon = val;\n\n break;\n\n case FIMD_LDI_CMDCON0 ... FIMD_LDI_CMDCON1:\n\n s->ldi_cmdcon[(offset - FIMD_LDI_CMDCON0) >> 2] = val;\n\n break;\n\n case FIMD_SIFCCON0 ... FIMD_SIFCCON2:\n\n i = (offset - FIMD_SIFCCON0) >> 2;\n\n if (i != 2) {\n\n s->sifccon[i] = val;\n\n }\n\n break;\n\n case FIMD_HUECOEFCR_START ... FIMD_HUECOEFCR_END:\n\n i = (offset - FIMD_HUECOEFCR_START) >> 2;\n\n s->huecoef_cr[i] = val;\n\n break;\n\n case FIMD_HUECOEFCB_START ... FIMD_HUECOEFCB_END:\n\n i = (offset - FIMD_HUECOEFCB_START) >> 2;\n\n s->huecoef_cb[i] = val;\n\n break;\n\n case FIMD_HUEOFFSET:\n\n s->hueoffset = val;\n\n break;\n\n case FIMD_VIDWALPHA_START ... FIMD_VIDWALPHA_END:\n\n w = ((offset - FIMD_VIDWALPHA_START) >> 3);\n\n i = ((offset - FIMD_VIDWALPHA_START) >> 2) & 1;\n\n if (w == 0) {\n\n s->window[w].alpha_val[i] = val;\n\n } else {\n\n s->window[w].alpha_val[i] = (val & FIMD_VIDALPHA_ALPHA_LOWER) |\n\n (s->window[w].alpha_val[i] & FIMD_VIDALPHA_ALPHA_UPPER);\n\n }\n\n break;\n\n case FIMD_BLENDEQ_START ... FIMD_BLENDEQ_END:\n\n s->window[(offset - FIMD_BLENDEQ_START) >> 2].blendeq = val;\n\n break;\n\n case FIMD_BLENDCON:\n\n old_value = s->blendcon;\n\n s->blendcon = val;\n\n if ((s->blendcon & FIMD_ALPHA_8BIT) != (old_value & FIMD_ALPHA_8BIT)) {\n\n for (w = 0; w < NUM_OF_WINDOWS; w++) {\n\n fimd_update_get_alpha(s, w);\n\n }\n\n }\n\n break;\n\n case FIMD_WRTQOSCON_START ... FIMD_WRTQOSCON_END:\n\n s->window[(offset - FIMD_WRTQOSCON_START) >> 2].rtqoscon = val;\n\n break;\n\n case FIMD_I80IFCMD_START ... FIMD_I80IFCMD_END:\n\n s->i80ifcmd[(offset - FIMD_I80IFCMD_START) >> 2] = val;\n\n break;\n\n case FIMD_VIDW0ADD0_B2 ... FIMD_VIDW4ADD0_B2:\n\n if (offset & 0x0004) {\n\n DPRINT_ERROR(\"bad write offset 0x%08x\\n\", offset);\n\n break;\n\n }\n\n w = (offset - FIMD_VIDW0ADD0_B2) >> 3;\n\n if (fimd_get_buffer_id(&s->window[w]) == 2 &&\n\n s->window[w].buf_start[2] != val) {\n\n s->window[w].buf_start[2] = val;\n\n fimd_update_memory_section(s, w);\n\n break;\n\n }\n\n s->window[w].buf_start[2] = val;\n\n break;\n\n case FIMD_SHD_ADD0_START ... FIMD_SHD_ADD0_END:\n\n if (offset & 0x0004) {\n\n DPRINT_ERROR(\"bad write offset 0x%08x\\n\", offset);\n\n break;\n\n }\n\n s->window[(offset - FIMD_SHD_ADD0_START) >> 3].shadow_buf_start = val;\n\n break;\n\n case FIMD_SHD_ADD1_START ... FIMD_SHD_ADD1_END:\n\n if (offset & 0x0004) {\n\n DPRINT_ERROR(\"bad write offset 0x%08x\\n\", offset);\n\n break;\n\n }\n\n s->window[(offset - FIMD_SHD_ADD1_START) >> 3].shadow_buf_end = val;\n\n break;\n\n case FIMD_SHD_ADD2_START ... FIMD_SHD_ADD2_END:\n\n s->window[(offset - FIMD_SHD_ADD2_START) >> 2].shadow_buf_size = val;\n\n break;\n\n case FIMD_PAL_MEM_START ... FIMD_PAL_MEM_END:\n\n w = (offset - FIMD_PAL_MEM_START) >> 10;\n\n i = ((offset - FIMD_PAL_MEM_START) >> 2) & 0xFF;\n\n s->window[w].palette[i] = val;\n\n break;\n\n case FIMD_PALMEM_AL_START ... FIMD_PALMEM_AL_END:\n\n /* Palette memory aliases for windows 0 and 1 */\n\n w = (offset - FIMD_PALMEM_AL_START) >> 10;\n\n i = ((offset - FIMD_PALMEM_AL_START) >> 2) & 0xFF;\n\n s->window[w].palette[i] = val;\n\n break;\n\n default:\n\n DPRINT_ERROR(\"bad write offset 0x%08x\\n\", offset);\n\n break;\n\n }\n\n}\n", + "output": "0", + "index": 1842 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int qcow2_do_open(BlockDriverState *bs, QDict *options, int flags,\n Error **errp)\n{\n BDRVQcow2State *s = bs->opaque;\n unsigned int len, i;\n int ret = 0;\n QCowHeader header;\n Error *local_err = NULL;\n uint64_t ext_end;\n uint64_t l1_vm_state_index;\n bool update_header = false;\n ret = bdrv_pread(bs->file, 0, &header, sizeof(header));\n if (ret < 0) {\n error_setg_errno(errp, -ret, \"Could not read qcow2 header\");\n be32_to_cpus(&header.magic);\n be32_to_cpus(&header.version);\n be64_to_cpus(&header.backing_file_offset);\n be32_to_cpus(&header.backing_file_size);\n be64_to_cpus(&header.size);\n be32_to_cpus(&header.cluster_bits);\n be32_to_cpus(&header.crypt_method);\n be64_to_cpus(&header.l1_table_offset);\n be32_to_cpus(&header.l1_size);\n be64_to_cpus(&header.refcount_table_offset);\n be32_to_cpus(&header.refcount_table_clusters);\n be64_to_cpus(&header.snapshots_offset);\n be32_to_cpus(&header.nb_snapshots);\n if (header.magic != QCOW_MAGIC) {\n error_setg(errp, \"Image is not in qcow2 format\");\n if (header.version < 2 || header.version > 3) {\n error_setg(errp, \"Unsupported qcow2 version %\" PRIu32, header.version);\n ret = -ENOTSUP;\n s->qcow_version = header.version;\n /* Initialise cluster size */\n if (header.cluster_bits < MIN_CLUSTER_BITS ||\n header.cluster_bits > MAX_CLUSTER_BITS) {\n error_setg(errp, \"Unsupported cluster size: 2^%\" PRIu32,\n header.cluster_bits);\n s->cluster_bits = header.cluster_bits;\n s->cluster_size = 1 << s->cluster_bits;\n s->cluster_sectors = 1 << (s->cluster_bits - BDRV_SECTOR_BITS);\n /* Initialise version 3 header fields */\n if (header.version == 2) {\n header.incompatible_features = 0;\n header.compatible_features = 0;\n header.autoclear_features = 0;\n header.refcount_order = 4;\n header.header_length = 72;\n } else {\n be64_to_cpus(&header.incompatible_features);\n be64_to_cpus(&header.compatible_features);\n be64_to_cpus(&header.autoclear_features);\n be32_to_cpus(&header.refcount_order);\n be32_to_cpus(&header.header_length);\n if (header.header_length < 104) {\n error_setg(errp, \"qcow2 header too short\");\n if (header.header_length > s->cluster_size) {\n error_setg(errp, \"qcow2 header exceeds cluster size\");\n if (header.header_length > sizeof(header)) {\n s->unknown_header_fields_size = header.header_length - sizeof(header);\n s->unknown_header_fields = g_malloc(s->unknown_header_fields_size);\n ret = bdrv_pread(bs->file, sizeof(header), s->unknown_header_fields,\n s->unknown_header_fields_size);\n if (ret < 0) {\n error_setg_errno(errp, -ret, \"Could not read unknown qcow2 header \"\n \"fields\");\n if (header.backing_file_offset > s->cluster_size) {\n error_setg(errp, \"Invalid backing file offset\");\n if (header.backing_file_offset) {\n ext_end = header.backing_file_offset;\n } else {\n ext_end = 1 << header.cluster_bits;\n /* Handle feature bits */\n s->incompatible_features = header.incompatible_features;\n s->compatible_features = header.compatible_features;\n s->autoclear_features = header.autoclear_features;\n if (s->incompatible_features & ~QCOW2_INCOMPAT_MASK) {\n void *feature_table = NULL;\n qcow2_read_extensions(bs, header.header_length, ext_end,\n &feature_table, flags, NULL, NULL);\n report_unsupported_feature(errp, feature_table,\n s->incompatible_features &\n ~QCOW2_INCOMPAT_MASK);\n ret = -ENOTSUP;\n g_free(feature_table);\n if (s->incompatible_features & QCOW2_INCOMPAT_CORRUPT) {\n /* Corrupt images may not be written to unless they are being repaired\n */\n if ((flags & BDRV_O_RDWR) && !(flags & BDRV_O_CHECK)) {\n error_setg(errp, \"qcow2: Image is corrupt; cannot be opened \"\n \"read/write\");\n ret = -EACCES;\n /* Check support for various header values */\n if (header.refcount_order > 6) {\n error_setg(errp, \"Reference count entry width too large; may not \"\n \"exceed 64 bits\");\n s->refcount_order = header.refcount_order;\n s->refcount_bits = 1 << s->refcount_order;\n s->refcount_max = UINT64_C(1) << (s->refcount_bits - 1);\n s->refcount_max += s->refcount_max - 1;\n s->crypt_method_header = header.crypt_method;\n if (s->crypt_method_header) {\n if (bdrv_uses_whitelist() &&\n s->crypt_method_header == QCOW_CRYPT_AES) {\n error_setg(errp,\n \"Use of AES-CBC encrypted qcow2 images is no longer \"\n \"supported in system emulators\");\n error_append_hint(errp,\n \"You can use 'qemu-img convert' to convert your \"\n \"image to an alternative supported format, such \"\n \"as unencrypted qcow2, or raw with the LUKS \"\n \"format instead.\\n\");\n ret = -ENOSYS;\n if (s->crypt_method_header == QCOW_CRYPT_AES) {\n s->crypt_physical_offset = false;\n } else {\n /* Assuming LUKS and any future crypt methods we\n * add will all use physical offsets, due to the\n * fact that the alternative is insecure... */\n s->crypt_physical_offset = true;\n bs->encrypted = true;\n s->l2_bits = s->cluster_bits - 3; /* L2 is always one cluster */\n s->l2_size = 1 << s->l2_bits;\n /* 2^(s->refcount_order - 3) is the refcount width in bytes */\n s->refcount_block_bits = s->cluster_bits - (s->refcount_order - 3);\n s->refcount_block_size = 1 << s->refcount_block_bits;\n bs->total_sectors = header.size / 512;\n s->csize_shift = (62 - (s->cluster_bits - 8));\n s->csize_mask = (1 << (s->cluster_bits - 8)) - 1;\n s->cluster_offset_mask = (1LL << s->csize_shift) - 1;\n s->refcount_table_offset = header.refcount_table_offset;\n s->refcount_table_size =\n header.refcount_table_clusters << (s->cluster_bits - 3);\n if (header.refcount_table_clusters > qcow2_max_refcount_clusters(s)) {\n error_setg(errp, \"Reference count table too large\");\n ret = validate_table_offset(bs, s->refcount_table_offset,\n s->refcount_table_size, sizeof(uint64_t));\n if (ret < 0) {\n error_setg(errp, \"Invalid reference count table offset\");\n /* Snapshot table offset/length */\n if (header.nb_snapshots > QCOW_MAX_SNAPSHOTS) {\n error_setg(errp, \"Too many snapshots\");\n ret = validate_table_offset(bs, header.snapshots_offset,\n header.nb_snapshots,\n sizeof(QCowSnapshotHeader));\n if (ret < 0) {\n error_setg(errp, \"Invalid snapshot table offset\");\n /* read the level 1 table */\n if (header.l1_size > QCOW_MAX_L1_SIZE / sizeof(uint64_t)) {\n error_setg(errp, \"Active L1 table too large\");\n ret = -EFBIG;\n s->l1_size = header.l1_size;\n l1_vm_state_index = size_to_l1(s, header.size);\n if (l1_vm_state_index > INT_MAX) {\n error_setg(errp, \"Image is too big\");\n ret = -EFBIG;\n s->l1_vm_state_index = l1_vm_state_index;\n /* the L1 table must contain at least enough entries to put\n header.size bytes */\n if (s->l1_size < s->l1_vm_state_index) {\n error_setg(errp, \"L1 table is too small\");\n ret = validate_table_offset(bs, header.l1_table_offset,\n header.l1_size, sizeof(uint64_t));\n if (ret < 0) {\n error_setg(errp, \"Invalid L1 table offset\");\n s->l1_table_offset = header.l1_table_offset;\n if (s->l1_size > 0) {\n s->l1_table = qemu_try_blockalign(bs->file->bs,\n align_offset(s->l1_size * sizeof(uint64_t), 512));\n if (s->l1_table == NULL) {\n error_setg(errp, \"Could not allocate L1 table\");\n ret = -ENOMEM;\n ret = bdrv_pread(bs->file, s->l1_table_offset, s->l1_table,\n s->l1_size * sizeof(uint64_t));\n if (ret < 0) {\n error_setg_errno(errp, -ret, \"Could not read L1 table\");\n for(i = 0;i < s->l1_size; i++) {\n be64_to_cpus(&s->l1_table[i]);\n /* Parse driver-specific options */\n ret = qcow2_update_options(bs, options, flags, errp);\n if (ret < 0) {\n s->cluster_cache_offset = -1;\n s->flags = flags;\n ret = qcow2_refcount_init(bs);\n if (ret != 0) {\n error_setg_errno(errp, -ret, \"Could not initialize refcount handling\");\n QLIST_INIT(&s->cluster_allocs);\n QTAILQ_INIT(&s->discards);\n /* read qcow2 extensions */\n if (qcow2_read_extensions(bs, header.header_length, ext_end, NULL,\n flags, &update_header, &local_err)) {\n error_propagate(errp, local_err);\n /* qcow2_read_extension may have set up the crypto context\n * if the crypt method needs a header region, some methods\n * don't need header extensions, so must check here\n */\n if (s->crypt_method_header && !s->crypto) {\n if (s->crypt_method_header == QCOW_CRYPT_AES) {\n unsigned int cflags = 0;\n if (flags & BDRV_O_NO_IO) {\n cflags |= QCRYPTO_BLOCK_OPEN_NO_IO;\n s->crypto = qcrypto_block_open(s->crypto_opts, \"encrypt.\",\n NULL, NULL, cflags, errp);\n if (!s->crypto) {\n } else if (!(flags & BDRV_O_NO_IO)) {\n error_setg(errp, \"Missing CRYPTO header for crypt method %d\",\n s->crypt_method_header);\n /* read the backing file name */\n if (header.backing_file_offset != 0) {\n len = header.backing_file_size;\n if (len > MIN(1023, s->cluster_size - header.backing_file_offset) ||\n len >= sizeof(bs->backing_file)) {\n error_setg(errp, \"Backing file name too long\");\n ret = bdrv_pread(bs->file, header.backing_file_offset,\n bs->backing_file, len);\n if (ret < 0) {\n error_setg_errno(errp, -ret, \"Could not read backing file name\");\n bs->backing_file[len] = '\\0';\n s->image_backing_file = g_strdup(bs->backing_file);\n /* Internal snapshots */\n s->snapshots_offset = header.snapshots_offset;\n s->nb_snapshots = header.nb_snapshots;\n ret = qcow2_read_snapshots(bs);\n if (ret < 0) {\n error_setg_errno(errp, -ret, \"Could not read snapshots\");\n /* Clear unknown autoclear feature bits */\n update_header |= s->autoclear_features & ~QCOW2_AUTOCLEAR_MASK;\n update_header =\n update_header && !bs->read_only && !(flags & BDRV_O_INACTIVE);\n if (update_header) {\n s->autoclear_features &= QCOW2_AUTOCLEAR_MASK;\n if (qcow2_load_autoloading_dirty_bitmaps(bs, &local_err)) {\n update_header = false;\n if (local_err != NULL) {\n error_propagate(errp, local_err);\n if (update_header) {\n ret = qcow2_update_header(bs);\n if (ret < 0) {\n error_setg_errno(errp, -ret, \"Could not update qcow2 header\");\n /* Initialise locks */\n qemu_co_mutex_init(&s->lock);\n bs->supported_zero_flags = BDRV_REQ_MAY_UNMAP;\n /* Repair image if dirty */\n if (!(flags & (BDRV_O_CHECK | BDRV_O_INACTIVE)) && !bs->read_only &&\n (s->incompatible_features & QCOW2_INCOMPAT_DIRTY)) {\n BdrvCheckResult result = {0};\n ret = qcow2_check(bs, &result, BDRV_FIX_ERRORS | BDRV_FIX_LEAKS);\n if (ret < 0) {\n error_setg_errno(errp, -ret, \"Could not repair dirty image\");\n#ifdef DEBUG_ALLOC\n {\n BdrvCheckResult result = {0};\n qcow2_check_refcounts(bs, &result, 0);\n#endif\n return ret;\n fail:\n g_free(s->unknown_header_fields);\n cleanup_unknown_header_ext(bs);\n qcow2_free_snapshots(bs);\n qcow2_refcount_close(bs);\n qemu_vfree(s->l1_table);\n /* else pre-write overlap checks in cache_destroy may crash */\n s->l1_table = NULL;\n cache_clean_timer_del(bs);\n if (s->l2_table_cache) {\n qcow2_cache_destroy(bs, s->l2_table_cache);\n if (s->refcount_block_cache) {\n qcow2_cache_destroy(bs, s->refcount_block_cache);\n qcrypto_block_free(s->crypto);\n qapi_free_QCryptoBlockOpenOptions(s->crypto_opts);\n return ret;", + "output": "1", + "index": 20311 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int ljpeg_decode_yuv_scan(MJpegDecodeContext *s, int predictor,\n\n int point_transform, int nb_components)\n\n{\n\n int i, mb_x, mb_y, mask;\n\n int bits= (s->bits+7)&~7;\n\n int resync_mb_y = 0;\n\n int resync_mb_x = 0;\n\n\n\n point_transform += bits - s->bits;\n\n mask = ((1 << s->bits) - 1) << point_transform;\n\n\n\n av_assert0(nb_components>=1 && nb_components<=4);\n\n\n\n for (mb_y = 0; mb_y < s->mb_height; mb_y++) {\n\n for (mb_x = 0; mb_x < s->mb_width; mb_x++) {\n\n if (get_bits_left(&s->gb) < 1) {\n\n av_log(s->avctx, AV_LOG_ERROR, \"bitstream end in yuv_scan\\n\");\n\n return AVERROR_INVALIDDATA;\n\n }\n\n if (s->restart_interval && !s->restart_count){\n\n s->restart_count = s->restart_interval;\n\n resync_mb_x = mb_x;\n\n resync_mb_y = mb_y;\n\n }\n\n\n\n if(!mb_x || mb_y == resync_mb_y || mb_y == resync_mb_y+1 && mb_x < resync_mb_x || s->interlaced){\n\n int toprow = mb_y == resync_mb_y || mb_y == resync_mb_y+1 && mb_x < resync_mb_x;\n\n int leftcol = !mb_x || mb_y == resync_mb_y && mb_x == resync_mb_x;\n\n for (i = 0; i < nb_components; i++) {\n\n uint8_t *ptr;\n\n uint16_t *ptr16;\n\n int n, h, v, x, y, c, j, linesize;\n\n n = s->nb_blocks[i];\n\n c = s->comp_index[i];\n\n h = s->h_scount[i];\n\n v = s->v_scount[i];\n\n x = 0;\n\n y = 0;\n\n linesize= s->linesize[c];\n\n\n\n if(bits>8) linesize /= 2;\n\n\n\n for(j=0; jdc_index[i]);\n\n if(dc == 0xFFFFF)\n\n return -1;\n\n if ( h * mb_x + x >= s->width\n\n || v * mb_y + y >= s->height) {\n\n // Nothing to do\n\n } else if (bits<=8) {\n\n ptr = s->picture_ptr->data[c] + (linesize * (v * mb_y + y)) + (h * mb_x + x); //FIXME optimize this crap\n\n if(y==0 && toprow){\n\n if(x==0 && leftcol){\n\n pred= 1 << (bits - 1);\n\n }else{\n\n pred= ptr[-1];\n\n }\n\n }else{\n\n if(x==0 && leftcol){\n\n pred= ptr[-linesize];\n\n }else{\n\n PREDICT(pred, ptr[-linesize-1], ptr[-linesize], ptr[-1], predictor);\n\n }\n\n }\n\n\n\n if (s->interlaced && s->bottom_field)\n\n ptr += linesize >> 1;\n\n pred &= mask;\n\n *ptr= pred + ((unsigned)dc << point_transform);\n\n }else{\n\n ptr16 = (uint16_t*)(s->picture_ptr->data[c] + 2*(linesize * (v * mb_y + y)) + 2*(h * mb_x + x)); //FIXME optimize this crap\n\n if(y==0 && toprow){\n\n if(x==0 && leftcol){\n\n pred= 1 << (bits - 1);\n\n }else{\n\n pred= ptr16[-1];\n\n }\n\n }else{\n\n if(x==0 && leftcol){\n\n pred= ptr16[-linesize];\n\n }else{\n\n PREDICT(pred, ptr16[-linesize-1], ptr16[-linesize], ptr16[-1], predictor);\n\n }\n\n }\n\n\n\n if (s->interlaced && s->bottom_field)\n\n ptr16 += linesize >> 1;\n\n pred &= mask;\n\n *ptr16= pred + (dc << point_transform);\n\n }\n\n if (++x == h) {\n\n x = 0;\n\n y++;\n\n }\n\n }\n\n }\n\n } else {\n\n for (i = 0; i < nb_components; i++) {\n\n uint8_t *ptr;\n\n uint16_t *ptr16;\n\n int n, h, v, x, y, c, j, linesize, dc;\n\n n = s->nb_blocks[i];\n\n c = s->comp_index[i];\n\n h = s->h_scount[i];\n\n v = s->v_scount[i];\n\n x = 0;\n\n y = 0;\n\n linesize = s->linesize[c];\n\n\n\n if(bits>8) linesize /= 2;\n\n\n\n for (j = 0; j < n; j++) {\n\n int pred;\n\n\n\n dc = mjpeg_decode_dc(s, s->dc_index[i]);\n\n if(dc == 0xFFFFF)\n\n return -1;\n\n if ( h * mb_x + x >= s->width\n\n || v * mb_y + y >= s->height) {\n\n // Nothing to do\n\n } else if (bits<=8) {\n\n ptr = s->picture_ptr->data[c] +\n\n (linesize * (v * mb_y + y)) +\n\n (h * mb_x + x); //FIXME optimize this crap\n\n PREDICT(pred, ptr[-linesize-1], ptr[-linesize], ptr[-1], predictor);\n\n\n\n pred &= mask;\n\n *ptr = pred + (dc << point_transform);\n\n }else{\n\n ptr16 = (uint16_t*)(s->picture_ptr->data[c] + 2*(linesize * (v * mb_y + y)) + 2*(h * mb_x + x)); //FIXME optimize this crap\n\n PREDICT(pred, ptr16[-linesize-1], ptr16[-linesize], ptr16[-1], predictor);\n\n\n\n pred &= mask;\n\n *ptr16= pred + (dc << point_transform);\n\n }\n\n\n\n if (++x == h) {\n\n x = 0;\n\n y++;\n\n }\n\n }\n\n }\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 }\n\n return 0;\n\n}\n", + "output": "1", + "index": 3897 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int decode_frame_byterun1(AVCodecContext *avctx,\n\n void *data, int *data_size,\n\n AVPacket *avpkt)\n\n{\n\n IffContext *s = avctx->priv_data;\n\n const uint8_t *buf = avpkt->size >= 2 ? avpkt->data + AV_RB16(avpkt->data) : NULL;\n\n const int buf_size = avpkt->size >= 2 ? avpkt->size - AV_RB16(avpkt->data) : 0;\n\n const uint8_t *buf_end = buf+buf_size;\n\n int y, plane, res;\n\n\n\n if ((res = extract_header(avctx, avpkt)) < 0)\n\n return res;\n\n if (s->init) {\n\n if ((res = avctx->reget_buffer(avctx, &s->frame)) < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"reget_buffer() failed\\n\");\n\n return res;\n\n }\n\n } else if ((res = avctx->get_buffer(avctx, &s->frame)) < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"get_buffer() failed\\n\");\n\n return res;\n\n } else if (avctx->bits_per_coded_sample <= 8 && avctx->pix_fmt != PIX_FMT_GRAY8) {\n\n if ((res = ff_cmap_read_palette(avctx, (uint32_t*)s->frame.data[1])) < 0)\n\n return res;\n\n }\n\n s->init = 1;\n\n\n\n if (avctx->codec_tag == MKTAG('I','L','B','M')) { //interleaved\n\n if (avctx->pix_fmt == PIX_FMT_PAL8 || avctx->pix_fmt == PIX_FMT_GRAY8) {\n\n for(y = 0; y < avctx->height ; y++ ) {\n\n uint8_t *row = &s->frame.data[0][ y*s->frame.linesize[0] ];\n\n memset(row, 0, avctx->width);\n\n for (plane = 0; plane < s->bpp; plane++) {\n\n buf += decode_byterun(s->planebuf, s->planesize, buf, buf_end);\n\n decodeplane8(row, s->planebuf, s->planesize, plane);\n\n }\n\n }\n\n } else if (s->ham) { // HAM to PIX_FMT_BGR32\n\n for (y = 0; y < avctx->height ; y++) {\n\n uint8_t *row = &s->frame.data[0][y*s->frame.linesize[0]];\n\n memset(s->ham_buf, 0, avctx->width);\n\n for (plane = 0; plane < s->bpp; plane++) {\n\n buf += decode_byterun(s->planebuf, s->planesize, buf, buf_end);\n\n decodeplane8(s->ham_buf, s->planebuf, s->planesize, plane);\n\n }\n\n decode_ham_plane32((uint32_t *) row, s->ham_buf, s->ham_palbuf, s->planesize);\n\n }\n\n } else { //PIX_FMT_BGR32\n\n for(y = 0; y < avctx->height ; y++ ) {\n\n uint8_t *row = &s->frame.data[0][y*s->frame.linesize[0]];\n\n memset(row, 0, avctx->width << 2);\n\n for (plane = 0; plane < s->bpp; plane++) {\n\n buf += decode_byterun(s->planebuf, s->planesize, buf, buf_end);\n\n decodeplane32((uint32_t *) row, s->planebuf, s->planesize, plane);\n\n }\n\n }\n\n }\n\n } else if (avctx->pix_fmt == PIX_FMT_PAL8 || avctx->pix_fmt == PIX_FMT_GRAY8) { // IFF-PBM\n\n for(y = 0; y < avctx->height ; y++ ) {\n\n uint8_t *row = &s->frame.data[0][y*s->frame.linesize[0]];\n\n buf += decode_byterun(row, avctx->width, buf, buf_end);\n\n }\n\n } else { // IFF-PBM: HAM to PIX_FMT_BGR32\n\n for (y = 0; y < avctx->height ; y++) {\n\n uint8_t *row = &s->frame.data[0][y*s->frame.linesize[0]];\n\n buf += decode_byterun(s->ham_buf, avctx->width, buf, buf_end);\n\n decode_ham_plane32((uint32_t *) row, s->ham_buf, s->ham_palbuf, avctx->width);\n\n }\n\n }\n\n\n\n *data_size = sizeof(AVFrame);\n\n *(AVFrame*)data = s->frame;\n\n return buf_size;\n\n}\n", + "output": "1", + "index": 10665 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int decode_element(AVCodecContext *avctx, void *data, int ch_index,\n\n int channels)\n\n{\n\n ALACContext *alac = avctx->priv_data;\n\n int has_size, bps, is_compressed, decorr_shift, decorr_left_weight, ret;\n\n uint32_t output_samples;\n\n int i, ch;\n\n\n\n skip_bits(&alac->gb, 4); /* element instance tag */\n\n skip_bits(&alac->gb, 12); /* unused header bits */\n\n\n\n /* the number of output samples is stored in the frame */\n\n has_size = get_bits1(&alac->gb);\n\n\n\n alac->extra_bits = get_bits(&alac->gb, 2) << 3;\n\n bps = alac->sample_size - alac->extra_bits + channels - 1;\n\n if (bps > 32) {\n\n av_log(avctx, AV_LOG_ERROR, \"bps is unsupported: %d\\n\", bps);\n\n return AVERROR_PATCHWELCOME;\n\n }\n\n\n\n /* whether the frame is compressed */\n\n is_compressed = !get_bits1(&alac->gb);\n\n\n\n if (has_size)\n\n output_samples = get_bits_long(&alac->gb, 32);\n\n else\n\n output_samples = alac->max_samples_per_frame;\n\n if (!output_samples || output_samples > alac->max_samples_per_frame) {\n\n av_log(avctx, AV_LOG_ERROR, \"invalid samples per frame: %d\\n\",\n\n output_samples);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n if (!alac->nb_samples) {\n\n /* get output buffer */\n\n alac->frame.nb_samples = output_samples;\n\n if ((ret = avctx->get_buffer(avctx, &alac->frame)) < 0) {\n\n av_log(avctx, AV_LOG_ERROR, \"get_buffer() failed\\n\");\n\n return ret;\n\n }\n\n } else if (output_samples != alac->nb_samples) {\n\n av_log(avctx, AV_LOG_ERROR, \"sample count mismatch: %u != %d\\n\",\n\n output_samples, alac->nb_samples);\n\n return AVERROR_INVALIDDATA;\n\n }\n\n alac->nb_samples = output_samples;\n\n if (alac->direct_output) {\n\n for (ch = 0; ch < channels; ch++)\n\n alac->output_samples_buffer[ch] = (int32_t *)alac->frame.extended_data[ch_index + ch];\n\n }\n\n\n\n if (is_compressed) {\n\n int16_t lpc_coefs[2][32];\n\n int lpc_order[2];\n\n int prediction_type[2];\n\n int lpc_quant[2];\n\n int rice_history_mult[2];\n\n\n\n decorr_shift = get_bits(&alac->gb, 8);\n\n decorr_left_weight = get_bits(&alac->gb, 8);\n\n\n\n for (ch = 0; ch < channels; ch++) {\n\n prediction_type[ch] = get_bits(&alac->gb, 4);\n\n lpc_quant[ch] = get_bits(&alac->gb, 4);\n\n rice_history_mult[ch] = get_bits(&alac->gb, 3);\n\n lpc_order[ch] = get_bits(&alac->gb, 5);\n\n\n\n /* read the predictor table */\n\n for (i = lpc_order[ch] - 1; i >= 0; i--)\n\n lpc_coefs[ch][i] = get_sbits(&alac->gb, 16);\n\n }\n\n\n\n if (alac->extra_bits) {\n\n for (i = 0; i < alac->nb_samples; i++) {\n\n if(get_bits_left(&alac->gb) <= 0)\n\n return -1;\n\n for (ch = 0; ch < channels; ch++)\n\n alac->extra_bits_buffer[ch][i] = get_bits(&alac->gb, alac->extra_bits);\n\n }\n\n }\n\n for (ch = 0; ch < channels; ch++) {\n\n int ret=rice_decompress(alac, alac->predict_error_buffer[ch],\n\n alac->nb_samples, bps,\n\n rice_history_mult[ch] * alac->rice_history_mult / 4);\n\n if(ret<0)\n\n return ret;\n\n\n\n /* adaptive FIR filter */\n\n if (prediction_type[ch] == 15) {\n\n /* Prediction type 15 runs the adaptive FIR twice.\n\n * The first pass uses the special-case coef_num = 31, while\n\n * the second pass uses the coefs from the bitstream.\n\n *\n\n * However, this prediction type is not currently used by the\n\n * reference encoder.\n\n */\n\n lpc_prediction(alac->predict_error_buffer[ch],\n\n alac->predict_error_buffer[ch],\n\n alac->nb_samples, bps, NULL, 31, 0);\n\n } else if (prediction_type[ch] > 0) {\n\n av_log(avctx, AV_LOG_WARNING, \"unknown prediction type: %i\\n\",\n\n prediction_type[ch]);\n\n }\n\n lpc_prediction(alac->predict_error_buffer[ch],\n\n alac->output_samples_buffer[ch], alac->nb_samples,\n\n bps, lpc_coefs[ch], lpc_order[ch], lpc_quant[ch]);\n\n }\n\n } else {\n\n /* not compressed, easy case */\n\n for (i = 0; i < alac->nb_samples; i++) {\n\n if(get_bits_left(&alac->gb) <= 0)\n\n return -1;\n\n for (ch = 0; ch < channels; ch++) {\n\n alac->output_samples_buffer[ch][i] =\n\n get_sbits_long(&alac->gb, alac->sample_size);\n\n }\n\n }\n\n alac->extra_bits = 0;\n\n decorr_shift = 0;\n\n decorr_left_weight = 0;\n\n }\n\n\n\n if (channels == 2 && decorr_left_weight) {\n\n decorrelate_stereo(alac->output_samples_buffer, alac->nb_samples,\n\n decorr_shift, decorr_left_weight);\n\n }\n\n\n\n if (alac->extra_bits) {\n\n append_extra_bits(alac->output_samples_buffer, alac->extra_bits_buffer,\n\n alac->extra_bits, channels, alac->nb_samples);\n\n }\n\n\n\n if(av_sample_fmt_is_planar(avctx->sample_fmt)) {\n\n switch(alac->sample_size) {\n\n case 16: {\n\n for (ch = 0; ch < channels; ch++) {\n\n int16_t *outbuffer = (int16_t *)alac->frame.extended_data[ch_index + ch];\n\n for (i = 0; i < alac->nb_samples; i++)\n\n *outbuffer++ = alac->output_samples_buffer[ch][i];\n\n }}\n\n break;\n\n case 24: {\n\n for (ch = 0; ch < channels; ch++) {\n\n for (i = 0; i < alac->nb_samples; i++)\n\n alac->output_samples_buffer[ch][i] <<= 8;\n\n }}\n\n break;\n\n }\n\n }else{\n\n switch(alac->sample_size) {\n\n case 16: {\n\n int16_t *outbuffer = ((int16_t *)alac->frame.extended_data[0]) + ch_index;\n\n for (i = 0; i < alac->nb_samples; i++) {\n\n for (ch = 0; ch < channels; ch++)\n\n *outbuffer++ = alac->output_samples_buffer[ch][i];\n\n outbuffer += alac->channels - channels;\n\n }\n\n }\n\n break;\n\n case 24: {\n\n int32_t *outbuffer = ((int32_t *)alac->frame.extended_data[0]) + ch_index;\n\n for (i = 0; i < alac->nb_samples; i++) {\n\n for (ch = 0; ch < channels; ch++)\n\n *outbuffer++ = alac->output_samples_buffer[ch][i] << 8;\n\n outbuffer += alac->channels - channels;\n\n }\n\n }\n\n break;\n\n case 32: {\n\n int32_t *outbuffer = ((int32_t *)alac->frame.extended_data[0]) + ch_index;\n\n for (i = 0; i < alac->nb_samples; i++) {\n\n for (ch = 0; ch < channels; ch++)\n\n *outbuffer++ = alac->output_samples_buffer[ch][i];\n\n outbuffer += alac->channels - channels;\n\n }\n\n }\n\n break;\n\n }\n\n }\n\n\n\n return 0;\n\n}\n", + "output": "0", + "index": 10750 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict, uint8_t *mbskip_table,\n\n uint32_t *mbtype_table, int8_t *qscale_table, int16_t (*motion_val[2])[2],\n\n int *low_delay,\n\n int mb_width, int mb_height, int mb_stride, int quarter_sample)\n\n{\n\n if ((avctx->flags2 & AV_CODEC_FLAG2_EXPORT_MVS) && mbtype_table && motion_val[0]) {\n\n const int shift = 1 + quarter_sample;\n\n const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;\n\n const int mv_stride = (mb_width << mv_sample_log2) +\n\n (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);\n\n int mb_x, mb_y, mbcount = 0;\n\n\n\n /* size is width * height * 2 * 4 where 2 is for directions and 4 is\n\n * for the maximum number of MB (4 MB in case of IS_8x8) */\n\n AVMotionVector *mvs = av_malloc_array(mb_width * mb_height, 2 * 4 * sizeof(AVMotionVector));\n\n if (!mvs)\n\n return;\n\n\n\n for (mb_y = 0; mb_y < mb_height; mb_y++) {\n\n for (mb_x = 0; mb_x < mb_width; mb_x++) {\n\n int i, direction, mb_type = mbtype_table[mb_x + mb_y * mb_stride];\n\n for (direction = 0; direction < 2; direction++) {\n\n if (!USES_LIST(mb_type, direction))\n\n continue;\n\n if (IS_8X8(mb_type)) {\n\n for (i = 0; i < 4; i++) {\n\n int sx = mb_x * 16 + 4 + 8 * (i & 1);\n\n int sy = mb_y * 16 + 4 + 8 * (i >> 1);\n\n int xy = (mb_x * 2 + (i & 1) +\n\n (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);\n\n int mx = (motion_val[direction][xy][0] >> shift) + sx;\n\n int my = (motion_val[direction][xy][1] >> shift) + sy;\n\n mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, direction);\n\n }\n\n } else if (IS_16X8(mb_type)) {\n\n for (i = 0; i < 2; i++) {\n\n int sx = mb_x * 16 + 8;\n\n int sy = mb_y * 16 + 4 + 8 * i;\n\n int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1);\n\n int mx = (motion_val[direction][xy][0] >> shift);\n\n int my = (motion_val[direction][xy][1] >> shift);\n\n\n\n if (IS_INTERLACED(mb_type))\n\n my *= 2;\n\n\n\n mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx + sx, my + sy, direction);\n\n }\n\n } else if (IS_8X16(mb_type)) {\n\n for (i = 0; i < 2; i++) {\n\n int sx = mb_x * 16 + 4 + 8 * i;\n\n int sy = mb_y * 16 + 8;\n\n int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1);\n\n int mx = motion_val[direction][xy][0] >> shift;\n\n int my = motion_val[direction][xy][1] >> shift;\n\n\n\n if (IS_INTERLACED(mb_type))\n\n my *= 2;\n\n\n\n mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx + sx, my + sy, direction);\n\n }\n\n } else {\n\n int sx = mb_x * 16 + 8;\n\n int sy = mb_y * 16 + 8;\n\n int xy = (mb_x + mb_y * mv_stride) << mv_sample_log2;\n\n int mx = (motion_val[direction][xy][0]>>shift) + sx;\n\n int my = (motion_val[direction][xy][1]>>shift) + sy;\n\n mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, direction);\n\n }\n\n }\n\n }\n\n }\n\n\n\n if (mbcount) {\n\n AVFrameSideData *sd;\n\n\n\n av_log(avctx, AV_LOG_DEBUG, \"Adding %d MVs info to frame %d\\n\", mbcount, avctx->frame_number);\n\n sd = av_frame_new_side_data(pict, AV_FRAME_DATA_MOTION_VECTORS, mbcount * sizeof(AVMotionVector));\n\n if (!sd) {\n\n av_freep(&mvs);\n\n return;\n\n }\n\n memcpy(sd->data, mvs, mbcount * sizeof(AVMotionVector));\n\n }\n\n\n\n av_freep(&mvs);\n\n }\n\n\n\n /* TODO: export all the following to make them accessible for users (and filters) */\n\n if (avctx->hwaccel || !mbtype_table\n\n#if FF_API_CAP_VDPAU\n\n || (avctx->codec->capabilities&AV_CODEC_CAP_HWACCEL_VDPAU)\n\n#endif\n\n )\n\n return;\n\n\n\n\n\n if (avctx->debug & (FF_DEBUG_SKIP | FF_DEBUG_QP | FF_DEBUG_MB_TYPE)) {\n\n int x,y;\n\n\n\n av_log(avctx, AV_LOG_DEBUG, \"New frame, type: %c\\n\",\n\n av_get_picture_type_char(pict->pict_type));\n\n for (y = 0; y < mb_height; y++) {\n\n for (x = 0; x < mb_width; x++) {\n\n if (avctx->debug & FF_DEBUG_SKIP) {\n\n int count = mbskip_table ? mbskip_table[x + y * mb_stride] : 0;\n\n if (count > 9)\n\n count = 9;\n\n av_log(avctx, AV_LOG_DEBUG, \"%1d\", count);\n\n }\n\n if (avctx->debug & FF_DEBUG_QP) {\n\n av_log(avctx, AV_LOG_DEBUG, \"%2d\",\n\n qscale_table[x + y * mb_stride]);\n\n }\n\n if (avctx->debug & FF_DEBUG_MB_TYPE) {\n\n int mb_type = mbtype_table[x + y * mb_stride];\n\n // Type & MV direction\n\n if (IS_PCM(mb_type))\n\n av_log(avctx, AV_LOG_DEBUG, \"P\");\n\n else if (IS_INTRA(mb_type) && IS_ACPRED(mb_type))\n\n av_log(avctx, AV_LOG_DEBUG, \"A\");\n\n else if (IS_INTRA4x4(mb_type))\n\n av_log(avctx, AV_LOG_DEBUG, \"i\");\n\n else if (IS_INTRA16x16(mb_type))\n\n av_log(avctx, AV_LOG_DEBUG, \"I\");\n\n else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type))\n\n av_log(avctx, AV_LOG_DEBUG, \"d\");\n\n else if (IS_DIRECT(mb_type))\n\n av_log(avctx, AV_LOG_DEBUG, \"D\");\n\n else if (IS_GMC(mb_type) && IS_SKIP(mb_type))\n\n av_log(avctx, AV_LOG_DEBUG, \"g\");\n\n else if (IS_GMC(mb_type))\n\n av_log(avctx, AV_LOG_DEBUG, \"G\");\n\n else if (IS_SKIP(mb_type))\n\n av_log(avctx, AV_LOG_DEBUG, \"S\");\n\n else if (!USES_LIST(mb_type, 1))\n\n av_log(avctx, AV_LOG_DEBUG, \">\");\n\n else if (!USES_LIST(mb_type, 0))\n\n av_log(avctx, AV_LOG_DEBUG, \"<\");\n\n else {\n\n av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));\n\n av_log(avctx, AV_LOG_DEBUG, \"X\");\n\n }\n\n\n\n // segmentation\n\n if (IS_8X8(mb_type))\n\n av_log(avctx, AV_LOG_DEBUG, \"+\");\n\n else if (IS_16X8(mb_type))\n\n av_log(avctx, AV_LOG_DEBUG, \"-\");\n\n else if (IS_8X16(mb_type))\n\n av_log(avctx, AV_LOG_DEBUG, \"|\");\n\n else if (IS_INTRA(mb_type) || IS_16X16(mb_type))\n\n av_log(avctx, AV_LOG_DEBUG, \" \");\n\n else\n\n av_log(avctx, AV_LOG_DEBUG, \"?\");\n\n\n\n\n\n if (IS_INTERLACED(mb_type))\n\n av_log(avctx, AV_LOG_DEBUG, \"=\");\n\n else\n\n av_log(avctx, AV_LOG_DEBUG, \" \");\n\n }\n\n }\n\n av_log(avctx, AV_LOG_DEBUG, \"\\n\");\n\n }\n\n }\n\n\n\n if ((avctx->debug & (FF_DEBUG_VIS_QP | FF_DEBUG_VIS_MB_TYPE)) ||\n\n (avctx->debug_mv)) {\n\n int mb_y;\n\n int i;\n\n int h_chroma_shift, v_chroma_shift, block_height;\n\n#if FF_API_VISMV\n\n const int shift = 1 + quarter_sample;\n\n uint8_t *ptr;\n\n const int width = avctx->width;\n\n const int height = avctx->height;\n\n#endif\n\n const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;\n\n const int mv_stride = (mb_width << mv_sample_log2) +\n\n (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);\n\n\n\n *low_delay = 0; // needed to see the vectors without trashing the buffers\n\n\n\n avcodec_get_chroma_sub_sample(avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);\n\n\n\n av_frame_make_writable(pict);\n\n\n\n pict->opaque = NULL;\n\n#if FF_API_VISMV\n\n ptr = pict->data[0];\n\n#endif\n\n block_height = 16 >> v_chroma_shift;\n\n\n\n for (mb_y = 0; mb_y < mb_height; mb_y++) {\n\n int mb_x;\n\n for (mb_x = 0; mb_x < mb_width; mb_x++) {\n\n const int mb_index = mb_x + mb_y * mb_stride;\n\n#if FF_API_VISMV\n\n if ((avctx->debug_mv) && motion_val[0]) {\n\n int type;\n\n for (type = 0; type < 3; type++) {\n\n int direction = 0;\n\n switch (type) {\n\n case 0:\n\n if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_P_FOR)) ||\n\n (pict->pict_type!= AV_PICTURE_TYPE_P))\n\n continue;\n\n direction = 0;\n\n break;\n\n case 1:\n\n if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_FOR)) ||\n\n (pict->pict_type!= AV_PICTURE_TYPE_B))\n\n continue;\n\n direction = 0;\n\n break;\n\n case 2:\n\n if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_BACK)) ||\n\n (pict->pict_type!= AV_PICTURE_TYPE_B))\n\n continue;\n\n direction = 1;\n\n break;\n\n }\n\n if (!USES_LIST(mbtype_table[mb_index], direction))\n\n continue;\n\n\n\n if (IS_8X8(mbtype_table[mb_index])) {\n\n int i;\n\n for (i = 0; i < 4; i++) {\n\n int sx = mb_x * 16 + 4 + 8 * (i & 1);\n\n int sy = mb_y * 16 + 4 + 8 * (i >> 1);\n\n int xy = (mb_x * 2 + (i & 1) +\n\n (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);\n\n int mx = (motion_val[direction][xy][0] >> shift) + sx;\n\n int my = (motion_val[direction][xy][1] >> shift) + sy;\n\n draw_arrow(ptr, sx, sy, mx, my, width,\n\n height, pict->linesize[0], 100, 0, direction);\n\n }\n\n } else if (IS_16X8(mbtype_table[mb_index])) {\n\n int i;\n\n for (i = 0; i < 2; i++) {\n\n int sx = mb_x * 16 + 8;\n\n int sy = mb_y * 16 + 4 + 8 * i;\n\n int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1);\n\n int mx = (motion_val[direction][xy][0] >> shift);\n\n int my = (motion_val[direction][xy][1] >> shift);\n\n\n\n if (IS_INTERLACED(mbtype_table[mb_index]))\n\n my *= 2;\n\n\n\n draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,\n\n height, pict->linesize[0], 100, 0, direction);\n\n }\n\n } else if (IS_8X16(mbtype_table[mb_index])) {\n\n int i;\n\n for (i = 0; i < 2; i++) {\n\n int sx = mb_x * 16 + 4 + 8 * i;\n\n int sy = mb_y * 16 + 8;\n\n int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1);\n\n int mx = motion_val[direction][xy][0] >> shift;\n\n int my = motion_val[direction][xy][1] >> shift;\n\n\n\n if (IS_INTERLACED(mbtype_table[mb_index]))\n\n my *= 2;\n\n\n\n draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,\n\n height, pict->linesize[0], 100, 0, direction);\n\n }\n\n } else {\n\n int sx= mb_x * 16 + 8;\n\n int sy= mb_y * 16 + 8;\n\n int xy= (mb_x + mb_y * mv_stride) << mv_sample_log2;\n\n int mx= (motion_val[direction][xy][0]>>shift) + sx;\n\n int my= (motion_val[direction][xy][1]>>shift) + sy;\n\n draw_arrow(ptr, sx, sy, mx, my, width, height, pict->linesize[0], 100, 0, direction);\n\n }\n\n }\n\n }\n\n#endif\n\n if ((avctx->debug & FF_DEBUG_VIS_QP)) {\n\n uint64_t c = (qscale_table[mb_index] * 128 / 31) *\n\n 0x0101010101010101ULL;\n\n int y;\n\n for (y = 0; y < block_height; y++) {\n\n *(uint64_t *)(pict->data[1] + 8 * mb_x +\n\n (block_height * mb_y + y) *\n\n pict->linesize[1]) = c;\n\n *(uint64_t *)(pict->data[2] + 8 * mb_x +\n\n (block_height * mb_y + y) *\n\n pict->linesize[2]) = c;\n\n }\n\n }\n\n if ((avctx->debug & FF_DEBUG_VIS_MB_TYPE) &&\n\n motion_val[0]) {\n\n int mb_type = mbtype_table[mb_index];\n\n uint64_t u,v;\n\n int y;\n\n#define COLOR(theta, r) \\\n\n u = (int)(128 + r * cos(theta * 3.141592 / 180)); \\\n\n v = (int)(128 + r * sin(theta * 3.141592 / 180));\n\n\n\n\n\n u = v = 128;\n\n if (IS_PCM(mb_type)) {\n\n COLOR(120, 48)\n\n } else if ((IS_INTRA(mb_type) && IS_ACPRED(mb_type)) ||\n\n IS_INTRA16x16(mb_type)) {\n\n COLOR(30, 48)\n\n } else if (IS_INTRA4x4(mb_type)) {\n\n COLOR(90, 48)\n\n } else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type)) {\n\n // COLOR(120, 48)\n\n } else if (IS_DIRECT(mb_type)) {\n\n COLOR(150, 48)\n\n } else if (IS_GMC(mb_type) && IS_SKIP(mb_type)) {\n\n COLOR(170, 48)\n\n } else if (IS_GMC(mb_type)) {\n\n COLOR(190, 48)\n\n } else if (IS_SKIP(mb_type)) {\n\n // COLOR(180, 48)\n\n } else if (!USES_LIST(mb_type, 1)) {\n\n COLOR(240, 48)\n\n } else if (!USES_LIST(mb_type, 0)) {\n\n COLOR(0, 48)\n\n } else {\n\n av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));\n\n COLOR(300,48)\n\n }\n\n\n\n u *= 0x0101010101010101ULL;\n\n v *= 0x0101010101010101ULL;\n\n for (y = 0; y < block_height; y++) {\n\n *(uint64_t *)(pict->data[1] + 8 * mb_x +\n\n (block_height * mb_y + y) * pict->linesize[1]) = u;\n\n *(uint64_t *)(pict->data[2] + 8 * mb_x +\n\n (block_height * mb_y + y) * pict->linesize[2]) = v;\n\n }\n\n\n\n // segmentation\n\n if (IS_8X8(mb_type) || IS_16X8(mb_type)) {\n\n *(uint64_t *)(pict->data[0] + 16 * mb_x + 0 +\n\n (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;\n\n *(uint64_t *)(pict->data[0] + 16 * mb_x + 8 +\n\n (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;\n\n }\n\n if (IS_8X8(mb_type) || IS_8X16(mb_type)) {\n\n for (y = 0; y < 16; y++)\n\n pict->data[0][16 * mb_x + 8 + (16 * mb_y + y) *\n\n pict->linesize[0]] ^= 0x80;\n\n }\n\n if (IS_8X8(mb_type) && mv_sample_log2 >= 2) {\n\n int dm = 1 << (mv_sample_log2 - 2);\n\n for (i = 0; i < 4; i++) {\n\n int sx = mb_x * 16 + 8 * (i & 1);\n\n int sy = mb_y * 16 + 8 * (i >> 1);\n\n int xy = (mb_x * 2 + (i & 1) +\n\n (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);\n\n // FIXME bidir\n\n int32_t *mv = (int32_t *) &motion_val[0][xy];\n\n if (mv[0] != mv[dm] ||\n\n mv[dm * mv_stride] != mv[dm * (mv_stride + 1)])\n\n for (y = 0; y < 8; y++)\n\n pict->data[0][sx + 4 + (sy + y) * pict->linesize[0]] ^= 0x80;\n\n if (mv[0] != mv[dm * mv_stride] || mv[dm] != mv[dm * (mv_stride + 1)])\n\n *(uint64_t *)(pict->data[0] + sx + (sy + 4) *\n\n pict->linesize[0]) ^= 0x8080808080808080ULL;\n\n }\n\n }\n\n\n\n if (IS_INTERLACED(mb_type) &&\n\n avctx->codec->id == AV_CODEC_ID_H264) {\n\n // hmm\n\n }\n\n }\n\n if (mbskip_table)\n\n mbskip_table[mb_index] = 0;\n\n }\n\n }\n\n }\n\n}\n", + "output": "0", + "index": 3678 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int RENAME(epzs_motion_search4)(MpegEncContext * s,\n\n int *mx_ptr, int *my_ptr,\n\n int P[10][2], int pred_x, int pred_y,\n\n uint8_t *src_data[3], \n\n uint8_t *ref_data[3], int stride, int uvstride, int16_t (*last_mv)[2], \n\n int ref_mv_scale, uint8_t * const mv_penalty)\n\n{\n\n int best[2]={0, 0};\n\n int d, dmin; \n\n const int shift= 1+s->quarter_sample;\n\n uint32_t *map= s->me.map;\n\n int map_generation;\n\n const int penalty_factor= s->me.penalty_factor;\n\n const int size=1;\n\n const int h=8;\n\n const int ref_mv_stride= s->mb_stride;\n\n const int ref_mv_xy= s->mb_x + s->mb_y *ref_mv_stride;\n\n me_cmp_func cmp, chroma_cmp;\n\n LOAD_COMMON\n\n \n\n cmp= s->dsp.me_cmp[size];\n\n chroma_cmp= s->dsp.me_cmp[size+1];\n\n\n\n map_generation= update_map_generation(s);\n\n\n\n dmin = 1000000;\n\n//printf(\"%d %d %d %d //\",xmin, ymin, xmax, ymax); \n\n /* first line */\n\n if (s->first_slice_line) {\n\n\tCHECK_MV(P_LEFT[0]>>shift, P_LEFT[1]>>shift)\n\n CHECK_CLIPED_MV((last_mv[ref_mv_xy][0]*ref_mv_scale + (1<<15))>>16, \n\n (last_mv[ref_mv_xy][1]*ref_mv_scale + (1<<15))>>16)\n\n CHECK_MV(P_MV1[0]>>shift, P_MV1[1]>>shift)\n\n }else{\n\n CHECK_MV(P_MV1[0]>>shift, P_MV1[1]>>shift)\n\n //FIXME try some early stop\n\n if(dmin>64*2){\n\n CHECK_MV(P_MEDIAN[0]>>shift, P_MEDIAN[1]>>shift)\n\n CHECK_MV(P_LEFT[0]>>shift, P_LEFT[1]>>shift)\n\n CHECK_MV(P_TOP[0]>>shift, P_TOP[1]>>shift)\n\n CHECK_MV(P_TOPRIGHT[0]>>shift, P_TOPRIGHT[1]>>shift)\n\n CHECK_CLIPED_MV((last_mv[ref_mv_xy][0]*ref_mv_scale + (1<<15))>>16, \n\n (last_mv[ref_mv_xy][1]*ref_mv_scale + (1<<15))>>16)\n\n }\n\n }\n\n if(dmin>64*4){\n\n CHECK_CLIPED_MV((last_mv[ref_mv_xy+1][0]*ref_mv_scale + (1<<15))>>16, \n\n (last_mv[ref_mv_xy+1][1]*ref_mv_scale + (1<<15))>>16)\n\n if(s->end_mb_y == s->mb_height || s->mb_y+1end_mb_y) //FIXME replace at least with last_slice_line\n\n CHECK_CLIPED_MV((last_mv[ref_mv_xy+ref_mv_stride][0]*ref_mv_scale + (1<<15))>>16, \n\n (last_mv[ref_mv_xy+ref_mv_stride][1]*ref_mv_scale + (1<<15))>>16)\n\n }\n\n\n\n if(s->me.dia_size==-1)\n\n dmin= RENAME(funny_diamond_search)(s, best, dmin, src_data, ref_data, stride, uvstride,\n\n pred_x, pred_y, penalty_factor, \n\n\t\t\t\t shift, map, map_generation, size, h, mv_penalty);\n\n else if(s->me.dia_size<-1)\n\n dmin= RENAME(sab_diamond_search)(s, best, dmin, src_data, ref_data, stride, uvstride,\n\n pred_x, pred_y, penalty_factor, \n\n\t\t\t\t shift, map, map_generation, size, h, mv_penalty);\n\n else if(s->me.dia_size<2)\n\n dmin= RENAME(small_diamond_search)(s, best, dmin, src_data, ref_data, stride, uvstride,\n\n pred_x, pred_y, penalty_factor, \n\n\t\t\t\t shift, map, map_generation, size, h, mv_penalty);\n\n else\n\n dmin= RENAME(var_diamond_search)(s, best, dmin, src_data, ref_data, stride, uvstride,\n\n pred_x, pred_y, penalty_factor, \n\n\t\t\t\t shift, map, map_generation, size, h, mv_penalty);\n\n\n\n\n\n *mx_ptr= best[0];\n\n *my_ptr= best[1]; \n\n\n\n// printf(\"%d %d %d \\n\", best[0], best[1], dmin);\n\n return dmin;\n\n}\n", + "output": "0", + "index": 14109 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void av_always_inline filter_mb_dir(H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize, int mb_xy, int mb_type, int mvy_limit, int first_vertical_edge_done, int dir) {\n\n MpegEncContext * const s = &h->s;\n\n int edge;\n\n const int mbm_xy = dir == 0 ? mb_xy -1 : h->top_mb_xy;\n\n const int mbm_type = s->current_picture.mb_type[mbm_xy];\n\n int (*ref2frm) [64] = h->ref2frm[ h->slice_num &(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);\n\n int (*ref2frmm)[64] = h->ref2frm[ h->slice_table[mbm_xy]&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);\n\n int start = h->slice_table[mbm_xy] == 0xFFFF ? 1 : 0;\n\n\n\n const int edges = (mb_type & (MB_TYPE_16x16|MB_TYPE_SKIP))\n\n == (MB_TYPE_16x16|MB_TYPE_SKIP) ? 1 : 4;\n\n // how often to recheck mv-based bS when iterating between edges\n\n const int mask_edge = (mb_type & (MB_TYPE_16x16 | (MB_TYPE_16x8 << dir))) ? 3 :\n\n (mb_type & (MB_TYPE_8x16 >> dir)) ? 1 : 0;\n\n // how often to recheck mv-based bS when iterating along each edge\n\n const int mask_par0 = mb_type & (MB_TYPE_16x16 | (MB_TYPE_8x16 >> dir));\n\n\n\n if (first_vertical_edge_done) {\n\n start = 1;\n\n }\n\n\n\n if (h->deblocking_filter==2 && h->slice_table[mbm_xy] != h->slice_table[mb_xy])\n\n start = 1;\n\n\n\n if (FRAME_MBAFF && (dir == 1) && ((mb_y&1) == 0) && start == 0\n\n && !IS_INTERLACED(mb_type)\n\n && IS_INTERLACED(mbm_type)\n\n ) {\n\n // This is a special case in the norm where the filtering must\n\n // be done twice (one each of the field) even if we are in a\n\n // frame macroblock.\n\n //\n\n static const int nnz_idx[4] = {4,5,6,3};\n\n unsigned int tmp_linesize = 2 * linesize;\n\n unsigned int tmp_uvlinesize = 2 * uvlinesize;\n\n int mbn_xy = mb_xy - 2 * s->mb_stride;\n\n int qp;\n\n int i, j;\n\n int16_t bS[4];\n\n\n\n for(j=0; j<2; j++, mbn_xy += s->mb_stride){\n\n if( IS_INTRA(mb_type) ||\n\n IS_INTRA(s->current_picture.mb_type[mbn_xy]) ) {\n\n bS[0] = bS[1] = bS[2] = bS[3] = 3;\n\n } else {\n\n const uint8_t *mbn_nnz = h->non_zero_count[mbn_xy];\n\n for( i = 0; i < 4; i++ ) {\n\n if( h->non_zero_count_cache[scan8[0]+i] != 0 ||\n\n mbn_nnz[nnz_idx[i]] != 0 )\n\n bS[i] = 2;\n\n else\n\n bS[i] = 1;\n\n }\n\n }\n\n // Do not use s->qscale as luma quantizer because it has not the same\n\n // value in IPCM macroblocks.\n\n qp = ( s->current_picture.qscale_table[mb_xy] + s->current_picture.qscale_table[mbn_xy] + 1 ) >> 1;\n\n tprintf(s->avctx, \"filter mb:%d/%d dir:%d edge:%d, QPy:%d ls:%d uvls:%d\", mb_x, mb_y, dir, edge, qp, tmp_linesize, tmp_uvlinesize);\n\n { int i; for (i = 0; i < 4; i++) tprintf(s->avctx, \" bS[%d]:%d\", i, bS[i]); tprintf(s->avctx, \"\\n\"); }\n\n filter_mb_edgeh( h, &img_y[j*linesize], tmp_linesize, bS, qp );\n\n filter_mb_edgech( h, &img_cb[j*uvlinesize], tmp_uvlinesize, bS,\n\n ( h->chroma_qp[0] + get_chroma_qp( h, 0, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1);\n\n filter_mb_edgech( h, &img_cr[j*uvlinesize], tmp_uvlinesize, bS,\n\n ( h->chroma_qp[1] + get_chroma_qp( h, 1, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1);\n\n }\n\n\n\n start = 1;\n\n }\n\n\n\n /* Calculate bS */\n\n for( edge = start; edge < edges; edge++ ) {\n\n /* mbn_xy: neighbor macroblock */\n\n const int mbn_xy = edge > 0 ? mb_xy : mbm_xy;\n\n const int mbn_type = s->current_picture.mb_type[mbn_xy];\n\n int (*ref2frmn)[64] = edge > 0 ? ref2frm : ref2frmm;\n\n int16_t bS[4];\n\n int qp;\n\n\n\n if( (edge&1) && IS_8x8DCT(mb_type) )\n\n continue;\n\n\n\n if( IS_INTRA(mb_type) ||\n\n IS_INTRA(mbn_type) ) {\n\n int value;\n\n if (edge == 0) {\n\n if ( (!IS_INTERLACED(mb_type) && !IS_INTERLACED(mbm_type))\n\n || ((FRAME_MBAFF || (s->picture_structure != PICT_FRAME)) && (dir == 0))\n\n ) {\n\n value = 4;\n\n } else {\n\n value = 3;\n\n }\n\n } else {\n\n value = 3;\n\n }\n\n bS[0] = bS[1] = bS[2] = bS[3] = value;\n\n } else {\n\n int i, l;\n\n int mv_done;\n\n\n\n if( edge & mask_edge ) {\n\n bS[0] = bS[1] = bS[2] = bS[3] = 0;\n\n mv_done = 1;\n\n }\n\n else if( FRAME_MBAFF && IS_INTERLACED(mb_type ^ mbn_type)) {\n\n bS[0] = bS[1] = bS[2] = bS[3] = 1;\n\n mv_done = 1;\n\n }\n\n else if( mask_par0 && (edge || (mbn_type & (MB_TYPE_16x16 | (MB_TYPE_8x16 >> dir)))) ) {\n\n int b_idx= 8 + 4 + edge * (dir ? 8:1);\n\n int bn_idx= b_idx - (dir ? 8:1);\n\n int v = 0;\n\n\n\n for( l = 0; !v && l < 1 + (h->slice_type_nos == FF_B_TYPE); l++ ) {\n\n v |= ref2frm[l][h->ref_cache[l][b_idx]] != ref2frmn[l][h->ref_cache[l][bn_idx]] ||\n\n FFABS( h->mv_cache[l][b_idx][0] - h->mv_cache[l][bn_idx][0] ) >= 4 ||\n\n FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[l][bn_idx][1] ) >= mvy_limit;\n\n }\n\n\n\n if(h->slice_type_nos == FF_B_TYPE && v){\n\n v=0;\n\n for( l = 0; !v && l < 2; l++ ) {\n\n int ln= 1-l;\n\n v |= ref2frm[l][h->ref_cache[l][b_idx]] != ref2frmn[ln][h->ref_cache[ln][bn_idx]] ||\n\n FFABS( h->mv_cache[l][b_idx][0] - h->mv_cache[ln][bn_idx][0] ) >= 4 ||\n\n FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[ln][bn_idx][1] ) >= mvy_limit;\n\n }\n\n }\n\n\n\n bS[0] = bS[1] = bS[2] = bS[3] = v;\n\n mv_done = 1;\n\n }\n\n else\n\n mv_done = 0;\n\n\n\n for( i = 0; i < 4; i++ ) {\n\n int x = dir == 0 ? edge : i;\n\n int y = dir == 0 ? i : edge;\n\n int b_idx= 8 + 4 + x + 8*y;\n\n int bn_idx= b_idx - (dir ? 8:1);\n\n\n\n if( h->non_zero_count_cache[b_idx] != 0 ||\n\n h->non_zero_count_cache[bn_idx] != 0 ) {\n\n bS[i] = 2;\n\n }\n\n else if(!mv_done)\n\n {\n\n bS[i] = 0;\n\n for( l = 0; l < 1 + (h->slice_type_nos == FF_B_TYPE); l++ ) {\n\n if( ref2frm[l][h->ref_cache[l][b_idx]] != ref2frmn[l][h->ref_cache[l][bn_idx]] ||\n\n FFABS( h->mv_cache[l][b_idx][0] - h->mv_cache[l][bn_idx][0] ) >= 4 ||\n\n FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[l][bn_idx][1] ) >= mvy_limit ) {\n\n bS[i] = 1;\n\n break;\n\n }\n\n }\n\n\n\n if(h->slice_type_nos == FF_B_TYPE && bS[i]){\n\n bS[i] = 0;\n\n for( l = 0; l < 2; l++ ) {\n\n int ln= 1-l;\n\n if( ref2frm[l][h->ref_cache[l][b_idx]] != ref2frmn[ln][h->ref_cache[ln][bn_idx]] ||\n\n FFABS( h->mv_cache[l][b_idx][0] - h->mv_cache[ln][bn_idx][0] ) >= 4 ||\n\n FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[ln][bn_idx][1] ) >= mvy_limit ) {\n\n bS[i] = 1;\n\n break;\n\n }\n\n }\n\n }\n\n }\n\n }\n\n\n\n if(bS[0]+bS[1]+bS[2]+bS[3] == 0)\n\n continue;\n\n }\n\n\n\n /* Filter edge */\n\n // Do not use s->qscale as luma quantizer because it has not the same\n\n // value in IPCM macroblocks.\n\n qp = ( s->current_picture.qscale_table[mb_xy] + s->current_picture.qscale_table[mbn_xy] + 1 ) >> 1;\n\n //tprintf(s->avctx, \"filter mb:%d/%d dir:%d edge:%d, QPy:%d, QPc:%d, QPcn:%d\\n\", mb_x, mb_y, dir, edge, qp, h->chroma_qp, s->current_picture.qscale_table[mbn_xy]);\n\n tprintf(s->avctx, \"filter mb:%d/%d dir:%d edge:%d, QPy:%d ls:%d uvls:%d\", mb_x, mb_y, dir, edge, qp, linesize, uvlinesize);\n\n { int i; for (i = 0; i < 4; i++) tprintf(s->avctx, \" bS[%d]:%d\", i, bS[i]); tprintf(s->avctx, \"\\n\"); }\n\n if( dir == 0 ) {\n\n filter_mb_edgev( h, &img_y[4*edge], linesize, bS, qp );\n\n if( (edge&1) == 0 ) {\n\n filter_mb_edgecv( h, &img_cb[2*edge], uvlinesize, bS,\n\n ( h->chroma_qp[0] + get_chroma_qp( h, 0, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1);\n\n filter_mb_edgecv( h, &img_cr[2*edge], uvlinesize, bS,\n\n ( h->chroma_qp[1] + get_chroma_qp( h, 1, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1);\n\n }\n\n } else {\n\n filter_mb_edgeh( h, &img_y[4*edge*linesize], linesize, bS, qp );\n\n if( (edge&1) == 0 ) {\n\n filter_mb_edgech( h, &img_cb[2*edge*uvlinesize], uvlinesize, bS,\n\n ( h->chroma_qp[0] + get_chroma_qp( h, 0, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1);\n\n filter_mb_edgech( h, &img_cr[2*edge*uvlinesize], uvlinesize, bS,\n\n ( h->chroma_qp[1] + get_chroma_qp( h, 1, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1);\n\n }\n\n }\n\n }\n\n}\n", + "output": "0", + "index": 5195 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "abi_long do_syscall(void *cpu_env, int num, abi_long arg1,\n\n abi_long arg2, abi_long arg3, abi_long arg4,\n\n abi_long arg5, abi_long arg6, abi_long arg7,\n\n abi_long arg8)\n\n{\n\n abi_long ret;\n\n struct stat st;\n\n struct statfs stfs;\n\n void *p;\n\n\n\n#ifdef DEBUG\n\n gemu_log(\"syscall %d\", num);\n\n#endif\n\n if(do_strace)\n\n print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);\n\n\n\n switch(num) {\n\n case TARGET_NR_exit:\n\n#ifdef CONFIG_USE_NPTL\n\n /* In old applications this may be used to implement _exit(2).\n\n However in threaded applictions it is used for thread termination,\n\n and _exit_group is used for application termination.\n\n Do thread termination if we have more then one thread. */\n\n /* FIXME: This probably breaks if a signal arrives. We should probably\n\n be disabling signals. */\n\n if (first_cpu->next_cpu) {\n\n TaskState *ts;\n\n CPUArchState **lastp;\n\n CPUArchState *p;\n\n\n\n cpu_list_lock();\n\n lastp = &first_cpu;\n\n p = first_cpu;\n\n while (p && p != (CPUArchState *)cpu_env) {\n\n lastp = &p->next_cpu;\n\n p = p->next_cpu;\n\n }\n\n /* If we didn't find the CPU for this thread then something is\n\n horribly wrong. */\n\n if (!p)\n\n abort();\n\n /* Remove the CPU from the list. */\n\n *lastp = p->next_cpu;\n\n cpu_list_unlock();\n\n ts = ((CPUArchState *)cpu_env)->opaque;\n\n if (ts->child_tidptr) {\n\n put_user_u32(0, ts->child_tidptr);\n\n sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX,\n\n NULL, NULL, 0);\n\n }\n\n thread_env = NULL;\n\n object_delete(OBJECT(ENV_GET_CPU(cpu_env)));\n\n g_free(ts);\n\n pthread_exit(NULL);\n\n }\n\n#endif\n\n#ifdef TARGET_GPROF\n\n _mcleanup();\n\n#endif\n\n gdb_exit(cpu_env, arg1);\n\n _exit(arg1);\n\n ret = 0; /* avoid warning */\n\n break;\n\n case TARGET_NR_read:\n\n if (arg3 == 0)\n\n ret = 0;\n\n else {\n\n if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))\n\n goto efault;\n\n ret = get_errno(read(arg1, p, arg3));\n\n unlock_user(p, arg2, ret);\n\n }\n\n break;\n\n case TARGET_NR_write:\n\n if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))\n\n goto efault;\n\n ret = get_errno(write(arg1, p, arg3));\n\n unlock_user(p, arg2, 0);\n\n break;\n\n case TARGET_NR_open:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(do_open(cpu_env, p,\n\n target_to_host_bitmask(arg2, fcntl_flags_tbl),\n\n arg3));\n\n unlock_user(p, arg1, 0);\n\n break;\n\n#if defined(TARGET_NR_openat) && defined(__NR_openat)\n\n case TARGET_NR_openat:\n\n if (!(p = lock_user_string(arg2)))\n\n goto efault;\n\n ret = get_errno(sys_openat(arg1,\n\n path(p),\n\n target_to_host_bitmask(arg3, fcntl_flags_tbl),\n\n arg4));\n\n unlock_user(p, arg2, 0);\n\n break;\n\n#endif\n\n case TARGET_NR_close:\n\n ret = get_errno(close(arg1));\n\n break;\n\n case TARGET_NR_brk:\n\n ret = do_brk(arg1);\n\n break;\n\n case TARGET_NR_fork:\n\n ret = get_errno(do_fork(cpu_env, SIGCHLD, 0, 0, 0, 0));\n\n break;\n\n#ifdef TARGET_NR_waitpid\n\n case TARGET_NR_waitpid:\n\n {\n\n int status;\n\n ret = get_errno(waitpid(arg1, &status, arg3));\n\n if (!is_error(ret) && arg2 && ret\n\n && put_user_s32(host_to_target_waitstatus(status), arg2))\n\n goto efault;\n\n }\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_waitid\n\n case TARGET_NR_waitid:\n\n {\n\n siginfo_t info;\n\n info.si_pid = 0;\n\n ret = get_errno(waitid(arg1, arg2, &info, arg4));\n\n if (!is_error(ret) && arg3 && info.si_pid != 0) {\n\n if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0)))\n\n goto efault;\n\n host_to_target_siginfo(p, &info);\n\n unlock_user(p, arg3, sizeof(target_siginfo_t));\n\n }\n\n }\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_creat /* not on alpha */\n\n case TARGET_NR_creat:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(creat(p, arg2));\n\n unlock_user(p, arg1, 0);\n\n break;\n\n#endif\n\n case TARGET_NR_link:\n\n {\n\n void * p2;\n\n p = lock_user_string(arg1);\n\n p2 = lock_user_string(arg2);\n\n if (!p || !p2)\n\n ret = -TARGET_EFAULT;\n\n else\n\n ret = get_errno(link(p, p2));\n\n unlock_user(p2, arg2, 0);\n\n unlock_user(p, arg1, 0);\n\n }\n\n break;\n\n#if defined(TARGET_NR_linkat) && defined(__NR_linkat)\n\n case TARGET_NR_linkat:\n\n {\n\n void * p2 = NULL;\n\n if (!arg2 || !arg4)\n\n goto efault;\n\n p = lock_user_string(arg2);\n\n p2 = lock_user_string(arg4);\n\n if (!p || !p2)\n\n ret = -TARGET_EFAULT;\n\n else\n\n ret = get_errno(sys_linkat(arg1, p, arg3, p2, arg5));\n\n unlock_user(p, arg2, 0);\n\n unlock_user(p2, arg4, 0);\n\n }\n\n break;\n\n#endif\n\n case TARGET_NR_unlink:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(unlink(p));\n\n unlock_user(p, arg1, 0);\n\n break;\n\n#if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat)\n\n case TARGET_NR_unlinkat:\n\n if (!(p = lock_user_string(arg2)))\n\n goto efault;\n\n ret = get_errno(sys_unlinkat(arg1, p, arg3));\n\n unlock_user(p, arg2, 0);\n\n break;\n\n#endif\n\n case TARGET_NR_execve:\n\n {\n\n char **argp, **envp;\n\n int argc, envc;\n\n abi_ulong gp;\n\n abi_ulong guest_argp;\n\n abi_ulong guest_envp;\n\n abi_ulong addr;\n\n char **q;\n\n int total_size = 0;\n\n\n\n argc = 0;\n\n guest_argp = arg2;\n\n for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) {\n\n if (get_user_ual(addr, gp))\n\n goto efault;\n\n if (!addr)\n\n break;\n\n argc++;\n\n }\n\n envc = 0;\n\n guest_envp = arg3;\n\n for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) {\n\n if (get_user_ual(addr, gp))\n\n goto efault;\n\n if (!addr)\n\n break;\n\n envc++;\n\n }\n\n\n\n argp = alloca((argc + 1) * sizeof(void *));\n\n envp = alloca((envc + 1) * sizeof(void *));\n\n\n\n for (gp = guest_argp, q = argp; gp;\n\n gp += sizeof(abi_ulong), q++) {\n\n if (get_user_ual(addr, gp))\n\n goto execve_efault;\n\n if (!addr)\n\n break;\n\n if (!(*q = lock_user_string(addr)))\n\n goto execve_efault;\n\n total_size += strlen(*q) + 1;\n\n }\n\n *q = NULL;\n\n\n\n for (gp = guest_envp, q = envp; gp;\n\n gp += sizeof(abi_ulong), q++) {\n\n if (get_user_ual(addr, gp))\n\n goto execve_efault;\n\n if (!addr)\n\n break;\n\n if (!(*q = lock_user_string(addr)))\n\n goto execve_efault;\n\n total_size += strlen(*q) + 1;\n\n }\n\n *q = NULL;\n\n\n\n /* This case will not be caught by the host's execve() if its\n\n page size is bigger than the target's. */\n\n if (total_size > MAX_ARG_PAGES * TARGET_PAGE_SIZE) {\n\n ret = -TARGET_E2BIG;\n\n goto execve_end;\n\n }\n\n if (!(p = lock_user_string(arg1)))\n\n goto execve_efault;\n\n ret = get_errno(execve(p, argp, envp));\n\n unlock_user(p, arg1, 0);\n\n\n\n goto execve_end;\n\n\n\n execve_efault:\n\n ret = -TARGET_EFAULT;\n\n\n\n execve_end:\n\n for (gp = guest_argp, q = argp; *q;\n\n gp += sizeof(abi_ulong), q++) {\n\n if (get_user_ual(addr, gp)\n\n || !addr)\n\n break;\n\n unlock_user(*q, addr, 0);\n\n }\n\n for (gp = guest_envp, q = envp; *q;\n\n gp += sizeof(abi_ulong), q++) {\n\n if (get_user_ual(addr, gp)\n\n || !addr)\n\n break;\n\n unlock_user(*q, addr, 0);\n\n }\n\n }\n\n break;\n\n case TARGET_NR_chdir:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(chdir(p));\n\n unlock_user(p, arg1, 0);\n\n break;\n\n#ifdef TARGET_NR_time\n\n case TARGET_NR_time:\n\n {\n\n time_t host_time;\n\n ret = get_errno(time(&host_time));\n\n if (!is_error(ret)\n\n && arg1\n\n && put_user_sal(host_time, arg1))\n\n goto efault;\n\n }\n\n break;\n\n#endif\n\n case TARGET_NR_mknod:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(mknod(p, arg2, arg3));\n\n unlock_user(p, arg1, 0);\n\n break;\n\n#if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)\n\n case TARGET_NR_mknodat:\n\n if (!(p = lock_user_string(arg2)))\n\n goto efault;\n\n ret = get_errno(sys_mknodat(arg1, p, arg3, arg4));\n\n unlock_user(p, arg2, 0);\n\n break;\n\n#endif\n\n case TARGET_NR_chmod:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(chmod(p, arg2));\n\n unlock_user(p, arg1, 0);\n\n break;\n\n#ifdef TARGET_NR_break\n\n case TARGET_NR_break:\n\n goto unimplemented;\n\n#endif\n\n#ifdef TARGET_NR_oldstat\n\n case TARGET_NR_oldstat:\n\n goto unimplemented;\n\n#endif\n\n case TARGET_NR_lseek:\n\n ret = get_errno(lseek(arg1, arg2, arg3));\n\n break;\n\n#if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA)\n\n /* Alpha specific */\n\n case TARGET_NR_getxpid:\n\n ((CPUAlphaState *)cpu_env)->ir[IR_A4] = getppid();\n\n ret = get_errno(getpid());\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_getpid\n\n case TARGET_NR_getpid:\n\n ret = get_errno(getpid());\n\n break;\n\n#endif\n\n case TARGET_NR_mount:\n\n\t\t{\n\n\t\t\t/* need to look at the data field */\n\n\t\t\tvoid *p2, *p3;\n\n\t\t\tp = lock_user_string(arg1);\n\n\t\t\tp2 = lock_user_string(arg2);\n\n\t\t\tp3 = lock_user_string(arg3);\n\n if (!p || !p2 || !p3)\n\n ret = -TARGET_EFAULT;\n\n else {\n\n /* FIXME - arg5 should be locked, but it isn't clear how to\n\n * do that since it's not guaranteed to be a NULL-terminated\n\n * string.\n\n */\n\n if ( ! arg5 )\n\n ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, NULL));\n\n else\n\n ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, g2h(arg5)));\n\n }\n\n unlock_user(p, arg1, 0);\n\n unlock_user(p2, arg2, 0);\n\n unlock_user(p3, arg3, 0);\n\n\t\t\tbreak;\n\n\t\t}\n\n#ifdef TARGET_NR_umount\n\n case TARGET_NR_umount:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(umount(p));\n\n unlock_user(p, arg1, 0);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_stime /* not on alpha */\n\n case TARGET_NR_stime:\n\n {\n\n time_t host_time;\n\n if (get_user_sal(host_time, arg1))\n\n goto efault;\n\n ret = get_errno(stime(&host_time));\n\n }\n\n break;\n\n#endif\n\n case TARGET_NR_ptrace:\n\n goto unimplemented;\n\n#ifdef TARGET_NR_alarm /* not on alpha */\n\n case TARGET_NR_alarm:\n\n ret = alarm(arg1);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_oldfstat\n\n case TARGET_NR_oldfstat:\n\n goto unimplemented;\n\n#endif\n\n#ifdef TARGET_NR_pause /* not on alpha */\n\n case TARGET_NR_pause:\n\n ret = get_errno(pause());\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_utime\n\n case TARGET_NR_utime:\n\n {\n\n struct utimbuf tbuf, *host_tbuf;\n\n struct target_utimbuf *target_tbuf;\n\n if (arg2) {\n\n if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1))\n\n goto efault;\n\n tbuf.actime = tswapal(target_tbuf->actime);\n\n tbuf.modtime = tswapal(target_tbuf->modtime);\n\n unlock_user_struct(target_tbuf, arg2, 0);\n\n host_tbuf = &tbuf;\n\n } else {\n\n host_tbuf = NULL;\n\n }\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(utime(p, host_tbuf));\n\n unlock_user(p, arg1, 0);\n\n }\n\n break;\n\n#endif\n\n case TARGET_NR_utimes:\n\n {\n\n struct timeval *tvp, tv[2];\n\n if (arg2) {\n\n if (copy_from_user_timeval(&tv[0], arg2)\n\n || copy_from_user_timeval(&tv[1],\n\n arg2 + sizeof(struct target_timeval)))\n\n goto efault;\n\n tvp = tv;\n\n } else {\n\n tvp = NULL;\n\n }\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(utimes(p, tvp));\n\n unlock_user(p, arg1, 0);\n\n }\n\n break;\n\n#if defined(TARGET_NR_futimesat) && defined(__NR_futimesat)\n\n case TARGET_NR_futimesat:\n\n {\n\n struct timeval *tvp, tv[2];\n\n if (arg3) {\n\n if (copy_from_user_timeval(&tv[0], arg3)\n\n || copy_from_user_timeval(&tv[1],\n\n arg3 + sizeof(struct target_timeval)))\n\n goto efault;\n\n tvp = tv;\n\n } else {\n\n tvp = NULL;\n\n }\n\n if (!(p = lock_user_string(arg2)))\n\n goto efault;\n\n ret = get_errno(sys_futimesat(arg1, path(p), tvp));\n\n unlock_user(p, arg2, 0);\n\n }\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_stty\n\n case TARGET_NR_stty:\n\n goto unimplemented;\n\n#endif\n\n#ifdef TARGET_NR_gtty\n\n case TARGET_NR_gtty:\n\n goto unimplemented;\n\n#endif\n\n case TARGET_NR_access:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(access(path(p), arg2));\n\n unlock_user(p, arg1, 0);\n\n break;\n\n#if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)\n\n case TARGET_NR_faccessat:\n\n if (!(p = lock_user_string(arg2)))\n\n goto efault;\n\n ret = get_errno(sys_faccessat(arg1, p, arg3));\n\n unlock_user(p, arg2, 0);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_nice /* not on alpha */\n\n case TARGET_NR_nice:\n\n ret = get_errno(nice(arg1));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_ftime\n\n case TARGET_NR_ftime:\n\n goto unimplemented;\n\n#endif\n\n case TARGET_NR_sync:\n\n sync();\n\n ret = 0;\n\n break;\n\n case TARGET_NR_kill:\n\n ret = get_errno(kill(arg1, target_to_host_signal(arg2)));\n\n break;\n\n case TARGET_NR_rename:\n\n {\n\n void *p2;\n\n p = lock_user_string(arg1);\n\n p2 = lock_user_string(arg2);\n\n if (!p || !p2)\n\n ret = -TARGET_EFAULT;\n\n else\n\n ret = get_errno(rename(p, p2));\n\n unlock_user(p2, arg2, 0);\n\n unlock_user(p, arg1, 0);\n\n }\n\n break;\n\n#if defined(TARGET_NR_renameat) && defined(__NR_renameat)\n\n case TARGET_NR_renameat:\n\n {\n\n void *p2;\n\n p = lock_user_string(arg2);\n\n p2 = lock_user_string(arg4);\n\n if (!p || !p2)\n\n ret = -TARGET_EFAULT;\n\n else\n\n ret = get_errno(sys_renameat(arg1, p, arg3, p2));\n\n unlock_user(p2, arg4, 0);\n\n unlock_user(p, arg2, 0);\n\n }\n\n break;\n\n#endif\n\n case TARGET_NR_mkdir:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(mkdir(p, arg2));\n\n unlock_user(p, arg1, 0);\n\n break;\n\n#if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)\n\n case TARGET_NR_mkdirat:\n\n if (!(p = lock_user_string(arg2)))\n\n goto efault;\n\n ret = get_errno(sys_mkdirat(arg1, p, arg3));\n\n unlock_user(p, arg2, 0);\n\n break;\n\n#endif\n\n case TARGET_NR_rmdir:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(rmdir(p));\n\n unlock_user(p, arg1, 0);\n\n break;\n\n case TARGET_NR_dup:\n\n ret = get_errno(dup(arg1));\n\n break;\n\n case TARGET_NR_pipe:\n\n ret = do_pipe(cpu_env, arg1, 0, 0);\n\n break;\n\n#ifdef TARGET_NR_pipe2\n\n case TARGET_NR_pipe2:\n\n ret = do_pipe(cpu_env, arg1,\n\n target_to_host_bitmask(arg2, fcntl_flags_tbl), 1);\n\n break;\n\n#endif\n\n case TARGET_NR_times:\n\n {\n\n struct target_tms *tmsp;\n\n struct tms tms;\n\n ret = get_errno(times(&tms));\n\n if (arg1) {\n\n tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0);\n\n if (!tmsp)\n\n goto efault;\n\n tmsp->tms_utime = tswapal(host_to_target_clock_t(tms.tms_utime));\n\n tmsp->tms_stime = tswapal(host_to_target_clock_t(tms.tms_stime));\n\n tmsp->tms_cutime = tswapal(host_to_target_clock_t(tms.tms_cutime));\n\n tmsp->tms_cstime = tswapal(host_to_target_clock_t(tms.tms_cstime));\n\n }\n\n if (!is_error(ret))\n\n ret = host_to_target_clock_t(ret);\n\n }\n\n break;\n\n#ifdef TARGET_NR_prof\n\n case TARGET_NR_prof:\n\n goto unimplemented;\n\n#endif\n\n#ifdef TARGET_NR_signal\n\n case TARGET_NR_signal:\n\n goto unimplemented;\n\n#endif\n\n case TARGET_NR_acct:\n\n if (arg1 == 0) {\n\n ret = get_errno(acct(NULL));\n\n } else {\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(acct(path(p)));\n\n unlock_user(p, arg1, 0);\n\n }\n\n break;\n\n#ifdef TARGET_NR_umount2 /* not on alpha */\n\n case TARGET_NR_umount2:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(umount2(p, arg2));\n\n unlock_user(p, arg1, 0);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_lock\n\n case TARGET_NR_lock:\n\n goto unimplemented;\n\n#endif\n\n case TARGET_NR_ioctl:\n\n ret = do_ioctl(arg1, arg2, arg3);\n\n break;\n\n case TARGET_NR_fcntl:\n\n ret = do_fcntl(arg1, arg2, arg3);\n\n break;\n\n#ifdef TARGET_NR_mpx\n\n case TARGET_NR_mpx:\n\n goto unimplemented;\n\n#endif\n\n case TARGET_NR_setpgid:\n\n ret = get_errno(setpgid(arg1, arg2));\n\n break;\n\n#ifdef TARGET_NR_ulimit\n\n case TARGET_NR_ulimit:\n\n goto unimplemented;\n\n#endif\n\n#ifdef TARGET_NR_oldolduname\n\n case TARGET_NR_oldolduname:\n\n goto unimplemented;\n\n#endif\n\n case TARGET_NR_umask:\n\n ret = get_errno(umask(arg1));\n\n break;\n\n case TARGET_NR_chroot:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(chroot(p));\n\n unlock_user(p, arg1, 0);\n\n break;\n\n case TARGET_NR_ustat:\n\n goto unimplemented;\n\n case TARGET_NR_dup2:\n\n ret = get_errno(dup2(arg1, arg2));\n\n break;\n\n#if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3)\n\n case TARGET_NR_dup3:\n\n ret = get_errno(dup3(arg1, arg2, arg3));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_getppid /* not on alpha */\n\n case TARGET_NR_getppid:\n\n ret = get_errno(getppid());\n\n break;\n\n#endif\n\n case TARGET_NR_getpgrp:\n\n ret = get_errno(getpgrp());\n\n break;\n\n case TARGET_NR_setsid:\n\n ret = get_errno(setsid());\n\n break;\n\n#ifdef TARGET_NR_sigaction\n\n case TARGET_NR_sigaction:\n\n {\n\n#if defined(TARGET_ALPHA)\n\n struct target_sigaction act, oact, *pact = 0;\n\n struct target_old_sigaction *old_act;\n\n if (arg2) {\n\n if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))\n\n goto efault;\n\n act._sa_handler = old_act->_sa_handler;\n\n target_siginitset(&act.sa_mask, old_act->sa_mask);\n\n act.sa_flags = old_act->sa_flags;\n\n act.sa_restorer = 0;\n\n unlock_user_struct(old_act, arg2, 0);\n\n pact = &act;\n\n }\n\n ret = get_errno(do_sigaction(arg1, pact, &oact));\n\n if (!is_error(ret) && arg3) {\n\n if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))\n\n goto efault;\n\n old_act->_sa_handler = oact._sa_handler;\n\n old_act->sa_mask = oact.sa_mask.sig[0];\n\n old_act->sa_flags = oact.sa_flags;\n\n unlock_user_struct(old_act, arg3, 1);\n\n }\n\n#elif defined(TARGET_MIPS)\n\n\t struct target_sigaction act, oact, *pact, *old_act;\n\n\n\n\t if (arg2) {\n\n if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))\n\n goto efault;\n\n\t\tact._sa_handler = old_act->_sa_handler;\n\n\t\ttarget_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);\n\n\t\tact.sa_flags = old_act->sa_flags;\n\n\t\tunlock_user_struct(old_act, arg2, 0);\n\n\t\tpact = &act;\n\n\t } else {\n\n\t\tpact = NULL;\n\n\t }\n\n\n\n\t ret = get_errno(do_sigaction(arg1, pact, &oact));\n\n\n\n\t if (!is_error(ret) && arg3) {\n\n if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))\n\n goto efault;\n\n\t\told_act->_sa_handler = oact._sa_handler;\n\n\t\told_act->sa_flags = oact.sa_flags;\n\n\t\told_act->sa_mask.sig[0] = oact.sa_mask.sig[0];\n\n\t\told_act->sa_mask.sig[1] = 0;\n\n\t\told_act->sa_mask.sig[2] = 0;\n\n\t\told_act->sa_mask.sig[3] = 0;\n\n\t\tunlock_user_struct(old_act, arg3, 1);\n\n\t }\n\n#else\n\n struct target_old_sigaction *old_act;\n\n struct target_sigaction act, oact, *pact;\n\n if (arg2) {\n\n if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))\n\n goto efault;\n\n act._sa_handler = old_act->_sa_handler;\n\n target_siginitset(&act.sa_mask, old_act->sa_mask);\n\n act.sa_flags = old_act->sa_flags;\n\n act.sa_restorer = old_act->sa_restorer;\n\n unlock_user_struct(old_act, arg2, 0);\n\n pact = &act;\n\n } else {\n\n pact = NULL;\n\n }\n\n ret = get_errno(do_sigaction(arg1, pact, &oact));\n\n if (!is_error(ret) && arg3) {\n\n if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))\n\n goto efault;\n\n old_act->_sa_handler = oact._sa_handler;\n\n old_act->sa_mask = oact.sa_mask.sig[0];\n\n old_act->sa_flags = oact.sa_flags;\n\n old_act->sa_restorer = oact.sa_restorer;\n\n unlock_user_struct(old_act, arg3, 1);\n\n }\n\n#endif\n\n }\n\n break;\n\n#endif\n\n case TARGET_NR_rt_sigaction:\n\n {\n\n#if defined(TARGET_ALPHA)\n\n struct target_sigaction act, oact, *pact = 0;\n\n struct target_rt_sigaction *rt_act;\n\n /* ??? arg4 == sizeof(sigset_t). */\n\n if (arg2) {\n\n if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1))\n\n goto efault;\n\n act._sa_handler = rt_act->_sa_handler;\n\n act.sa_mask = rt_act->sa_mask;\n\n act.sa_flags = rt_act->sa_flags;\n\n act.sa_restorer = arg5;\n\n unlock_user_struct(rt_act, arg2, 0);\n\n pact = &act;\n\n }\n\n ret = get_errno(do_sigaction(arg1, pact, &oact));\n\n if (!is_error(ret) && arg3) {\n\n if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0))\n\n goto efault;\n\n rt_act->_sa_handler = oact._sa_handler;\n\n rt_act->sa_mask = oact.sa_mask;\n\n rt_act->sa_flags = oact.sa_flags;\n\n unlock_user_struct(rt_act, arg3, 1);\n\n }\n\n#else\n\n struct target_sigaction *act;\n\n struct target_sigaction *oact;\n\n\n\n if (arg2) {\n\n if (!lock_user_struct(VERIFY_READ, act, arg2, 1))\n\n goto efault;\n\n } else\n\n act = NULL;\n\n if (arg3) {\n\n if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {\n\n ret = -TARGET_EFAULT;\n\n goto rt_sigaction_fail;\n\n }\n\n } else\n\n oact = NULL;\n\n ret = get_errno(do_sigaction(arg1, act, oact));\n\n\trt_sigaction_fail:\n\n if (act)\n\n unlock_user_struct(act, arg2, 0);\n\n if (oact)\n\n unlock_user_struct(oact, arg3, 1);\n\n#endif\n\n }\n\n break;\n\n#ifdef TARGET_NR_sgetmask /* not on alpha */\n\n case TARGET_NR_sgetmask:\n\n {\n\n sigset_t cur_set;\n\n abi_ulong target_set;\n\n sigprocmask(0, NULL, &cur_set);\n\n host_to_target_old_sigset(&target_set, &cur_set);\n\n ret = target_set;\n\n }\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_ssetmask /* not on alpha */\n\n case TARGET_NR_ssetmask:\n\n {\n\n sigset_t set, oset, cur_set;\n\n abi_ulong target_set = arg1;\n\n sigprocmask(0, NULL, &cur_set);\n\n target_to_host_old_sigset(&set, &target_set);\n\n sigorset(&set, &set, &cur_set);\n\n sigprocmask(SIG_SETMASK, &set, &oset);\n\n host_to_target_old_sigset(&target_set, &oset);\n\n ret = target_set;\n\n }\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_sigprocmask\n\n case TARGET_NR_sigprocmask:\n\n {\n\n#if defined(TARGET_ALPHA)\n\n sigset_t set, oldset;\n\n abi_ulong mask;\n\n int how;\n\n\n\n switch (arg1) {\n\n case TARGET_SIG_BLOCK:\n\n how = SIG_BLOCK;\n\n break;\n\n case TARGET_SIG_UNBLOCK:\n\n how = SIG_UNBLOCK;\n\n break;\n\n case TARGET_SIG_SETMASK:\n\n how = SIG_SETMASK;\n\n break;\n\n default:\n\n ret = -TARGET_EINVAL;\n\n goto fail;\n\n }\n\n mask = arg2;\n\n target_to_host_old_sigset(&set, &mask);\n\n\n\n ret = get_errno(sigprocmask(how, &set, &oldset));\n\n if (!is_error(ret)) {\n\n host_to_target_old_sigset(&mask, &oldset);\n\n ret = mask;\n\n ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0; /* force no error */\n\n }\n\n#else\n\n sigset_t set, oldset, *set_ptr;\n\n int how;\n\n\n\n if (arg2) {\n\n switch (arg1) {\n\n case TARGET_SIG_BLOCK:\n\n how = SIG_BLOCK;\n\n break;\n\n case TARGET_SIG_UNBLOCK:\n\n how = SIG_UNBLOCK;\n\n break;\n\n case TARGET_SIG_SETMASK:\n\n how = SIG_SETMASK;\n\n break;\n\n default:\n\n ret = -TARGET_EINVAL;\n\n goto fail;\n\n }\n\n if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))\n\n goto efault;\n\n target_to_host_old_sigset(&set, p);\n\n unlock_user(p, arg2, 0);\n\n set_ptr = &set;\n\n } else {\n\n how = 0;\n\n set_ptr = NULL;\n\n }\n\n ret = get_errno(sigprocmask(how, set_ptr, &oldset));\n\n if (!is_error(ret) && arg3) {\n\n if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))\n\n goto efault;\n\n host_to_target_old_sigset(p, &oldset);\n\n unlock_user(p, arg3, sizeof(target_sigset_t));\n\n }\n\n#endif\n\n }\n\n break;\n\n#endif\n\n case TARGET_NR_rt_sigprocmask:\n\n {\n\n int how = arg1;\n\n sigset_t set, oldset, *set_ptr;\n\n\n\n if (arg2) {\n\n switch(how) {\n\n case TARGET_SIG_BLOCK:\n\n how = SIG_BLOCK;\n\n break;\n\n case TARGET_SIG_UNBLOCK:\n\n how = SIG_UNBLOCK;\n\n break;\n\n case TARGET_SIG_SETMASK:\n\n how = SIG_SETMASK;\n\n break;\n\n default:\n\n ret = -TARGET_EINVAL;\n\n goto fail;\n\n }\n\n if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))\n\n goto efault;\n\n target_to_host_sigset(&set, p);\n\n unlock_user(p, arg2, 0);\n\n set_ptr = &set;\n\n } else {\n\n how = 0;\n\n set_ptr = NULL;\n\n }\n\n ret = get_errno(sigprocmask(how, set_ptr, &oldset));\n\n if (!is_error(ret) && arg3) {\n\n if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))\n\n goto efault;\n\n host_to_target_sigset(p, &oldset);\n\n unlock_user(p, arg3, sizeof(target_sigset_t));\n\n }\n\n }\n\n break;\n\n#ifdef TARGET_NR_sigpending\n\n case TARGET_NR_sigpending:\n\n {\n\n sigset_t set;\n\n ret = get_errno(sigpending(&set));\n\n if (!is_error(ret)) {\n\n if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))\n\n goto efault;\n\n host_to_target_old_sigset(p, &set);\n\n unlock_user(p, arg1, sizeof(target_sigset_t));\n\n }\n\n }\n\n break;\n\n#endif\n\n case TARGET_NR_rt_sigpending:\n\n {\n\n sigset_t set;\n\n ret = get_errno(sigpending(&set));\n\n if (!is_error(ret)) {\n\n if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))\n\n goto efault;\n\n host_to_target_sigset(p, &set);\n\n unlock_user(p, arg1, sizeof(target_sigset_t));\n\n }\n\n }\n\n break;\n\n#ifdef TARGET_NR_sigsuspend\n\n case TARGET_NR_sigsuspend:\n\n {\n\n sigset_t set;\n\n#if defined(TARGET_ALPHA)\n\n abi_ulong mask = arg1;\n\n target_to_host_old_sigset(&set, &mask);\n\n#else\n\n if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))\n\n goto efault;\n\n target_to_host_old_sigset(&set, p);\n\n unlock_user(p, arg1, 0);\n\n#endif\n\n ret = get_errno(sigsuspend(&set));\n\n }\n\n break;\n\n#endif\n\n case TARGET_NR_rt_sigsuspend:\n\n {\n\n sigset_t set;\n\n if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))\n\n goto efault;\n\n target_to_host_sigset(&set, p);\n\n unlock_user(p, arg1, 0);\n\n ret = get_errno(sigsuspend(&set));\n\n }\n\n break;\n\n case TARGET_NR_rt_sigtimedwait:\n\n {\n\n sigset_t set;\n\n struct timespec uts, *puts;\n\n siginfo_t uinfo;\n\n\n\n if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))\n\n goto efault;\n\n target_to_host_sigset(&set, p);\n\n unlock_user(p, arg1, 0);\n\n if (arg3) {\n\n puts = &uts;\n\n target_to_host_timespec(puts, arg3);\n\n } else {\n\n puts = NULL;\n\n }\n\n ret = get_errno(sigtimedwait(&set, &uinfo, puts));\n\n if (!is_error(ret) && arg2) {\n\n if (!(p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t), 0)))\n\n goto efault;\n\n host_to_target_siginfo(p, &uinfo);\n\n unlock_user(p, arg2, sizeof(target_siginfo_t));\n\n }\n\n }\n\n break;\n\n case TARGET_NR_rt_sigqueueinfo:\n\n {\n\n siginfo_t uinfo;\n\n if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1)))\n\n goto efault;\n\n target_to_host_siginfo(&uinfo, p);\n\n unlock_user(p, arg1, 0);\n\n ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));\n\n }\n\n break;\n\n#ifdef TARGET_NR_sigreturn\n\n case TARGET_NR_sigreturn:\n\n /* NOTE: ret is eax, so not transcoding must be done */\n\n ret = do_sigreturn(cpu_env);\n\n break;\n\n#endif\n\n case TARGET_NR_rt_sigreturn:\n\n /* NOTE: ret is eax, so not transcoding must be done */\n\n ret = do_rt_sigreturn(cpu_env);\n\n break;\n\n case TARGET_NR_sethostname:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(sethostname(p, arg2));\n\n unlock_user(p, arg1, 0);\n\n break;\n\n case TARGET_NR_setrlimit:\n\n {\n\n int resource = target_to_host_resource(arg1);\n\n struct target_rlimit *target_rlim;\n\n struct rlimit rlim;\n\n if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))\n\n goto efault;\n\n rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur);\n\n rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max);\n\n unlock_user_struct(target_rlim, arg2, 0);\n\n ret = get_errno(setrlimit(resource, &rlim));\n\n }\n\n break;\n\n case TARGET_NR_getrlimit:\n\n {\n\n int resource = target_to_host_resource(arg1);\n\n struct target_rlimit *target_rlim;\n\n struct rlimit rlim;\n\n\n\n ret = get_errno(getrlimit(resource, &rlim));\n\n if (!is_error(ret)) {\n\n if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))\n\n goto efault;\n\n target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);\n\n target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);\n\n unlock_user_struct(target_rlim, arg2, 1);\n\n }\n\n }\n\n break;\n\n case TARGET_NR_getrusage:\n\n {\n\n struct rusage rusage;\n\n ret = get_errno(getrusage(arg1, &rusage));\n\n if (!is_error(ret)) {\n\n host_to_target_rusage(arg2, &rusage);\n\n }\n\n }\n\n break;\n\n case TARGET_NR_gettimeofday:\n\n {\n\n struct timeval tv;\n\n ret = get_errno(gettimeofday(&tv, NULL));\n\n if (!is_error(ret)) {\n\n if (copy_to_user_timeval(arg1, &tv))\n\n goto efault;\n\n }\n\n }\n\n break;\n\n case TARGET_NR_settimeofday:\n\n {\n\n struct timeval tv;\n\n if (copy_from_user_timeval(&tv, arg1))\n\n goto efault;\n\n ret = get_errno(settimeofday(&tv, NULL));\n\n }\n\n break;\n\n#if defined(TARGET_NR_select) && !defined(TARGET_S390X) && !defined(TARGET_S390)\n\n case TARGET_NR_select:\n\n {\n\n struct target_sel_arg_struct *sel;\n\n abi_ulong inp, outp, exp, tvp;\n\n long nsel;\n\n\n\n if (!lock_user_struct(VERIFY_READ, sel, arg1, 1))\n\n goto efault;\n\n nsel = tswapal(sel->n);\n\n inp = tswapal(sel->inp);\n\n outp = tswapal(sel->outp);\n\n exp = tswapal(sel->exp);\n\n tvp = tswapal(sel->tvp);\n\n unlock_user_struct(sel, arg1, 0);\n\n ret = do_select(nsel, inp, outp, exp, tvp);\n\n }\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_pselect6\n\n case TARGET_NR_pselect6:\n\n {\n\n abi_long rfd_addr, wfd_addr, efd_addr, n, ts_addr;\n\n fd_set rfds, wfds, efds;\n\n fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;\n\n struct timespec ts, *ts_ptr;\n\n\n\n /*\n\n * The 6th arg is actually two args smashed together,\n\n * so we cannot use the C library.\n\n */\n\n sigset_t set;\n\n struct {\n\n sigset_t *set;\n\n size_t size;\n\n } sig, *sig_ptr;\n\n\n\n abi_ulong arg_sigset, arg_sigsize, *arg7;\n\n target_sigset_t *target_sigset;\n\n\n\n n = arg1;\n\n rfd_addr = arg2;\n\n wfd_addr = arg3;\n\n efd_addr = arg4;\n\n ts_addr = arg5;\n\n\n\n ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);\n\n if (ret) {\n\n goto fail;\n\n }\n\n ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);\n\n if (ret) {\n\n goto fail;\n\n }\n\n ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);\n\n if (ret) {\n\n goto fail;\n\n }\n\n\n\n /*\n\n * This takes a timespec, and not a timeval, so we cannot\n\n * use the do_select() helper ...\n\n */\n\n if (ts_addr) {\n\n if (target_to_host_timespec(&ts, ts_addr)) {\n\n goto efault;\n\n }\n\n ts_ptr = &ts;\n\n } else {\n\n ts_ptr = NULL;\n\n }\n\n\n\n /* Extract the two packed args for the sigset */\n\n if (arg6) {\n\n sig_ptr = &sig;\n\n sig.size = _NSIG / 8;\n\n\n\n arg7 = lock_user(VERIFY_READ, arg6, sizeof(*arg7) * 2, 1);\n\n if (!arg7) {\n\n goto efault;\n\n }\n\n arg_sigset = tswapal(arg7[0]);\n\n arg_sigsize = tswapal(arg7[1]);\n\n unlock_user(arg7, arg6, 0);\n\n\n\n if (arg_sigset) {\n\n sig.set = &set;\n\n if (arg_sigsize != sizeof(*target_sigset)) {\n\n /* Like the kernel, we enforce correct size sigsets */\n\n ret = -TARGET_EINVAL;\n\n goto fail;\n\n }\n\n target_sigset = lock_user(VERIFY_READ, arg_sigset,\n\n sizeof(*target_sigset), 1);\n\n if (!target_sigset) {\n\n goto efault;\n\n }\n\n target_to_host_sigset(&set, target_sigset);\n\n unlock_user(target_sigset, arg_sigset, 0);\n\n } else {\n\n sig.set = NULL;\n\n }\n\n } else {\n\n sig_ptr = NULL;\n\n }\n\n\n\n ret = get_errno(sys_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,\n\n ts_ptr, sig_ptr));\n\n\n\n if (!is_error(ret)) {\n\n if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))\n\n goto efault;\n\n if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))\n\n goto efault;\n\n if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))\n\n goto efault;\n\n\n\n if (ts_addr && host_to_target_timespec(ts_addr, &ts))\n\n goto efault;\n\n }\n\n }\n\n break;\n\n#endif\n\n case TARGET_NR_symlink:\n\n {\n\n void *p2;\n\n p = lock_user_string(arg1);\n\n p2 = lock_user_string(arg2);\n\n if (!p || !p2)\n\n ret = -TARGET_EFAULT;\n\n else\n\n ret = get_errno(symlink(p, p2));\n\n unlock_user(p2, arg2, 0);\n\n unlock_user(p, arg1, 0);\n\n }\n\n break;\n\n#if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)\n\n case TARGET_NR_symlinkat:\n\n {\n\n void *p2;\n\n p = lock_user_string(arg1);\n\n p2 = lock_user_string(arg3);\n\n if (!p || !p2)\n\n ret = -TARGET_EFAULT;\n\n else\n\n ret = get_errno(sys_symlinkat(p, arg2, p2));\n\n unlock_user(p2, arg3, 0);\n\n unlock_user(p, arg1, 0);\n\n }\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_oldlstat\n\n case TARGET_NR_oldlstat:\n\n goto unimplemented;\n\n#endif\n\n case TARGET_NR_readlink:\n\n {\n\n void *p2, *temp;\n\n p = lock_user_string(arg1);\n\n p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);\n\n if (!p || !p2)\n\n ret = -TARGET_EFAULT;\n\n else {\n\n if (strncmp((const char *)p, \"/proc/self/exe\", 14) == 0) {\n\n char real[PATH_MAX];\n\n temp = realpath(exec_path,real);\n\n ret = (temp==NULL) ? get_errno(-1) : strlen(real) ;\n\n snprintf((char *)p2, arg3, \"%s\", real);\n\n }\n\n else\n\n ret = get_errno(readlink(path(p), p2, arg3));\n\n }\n\n unlock_user(p2, arg2, ret);\n\n unlock_user(p, arg1, 0);\n\n }\n\n break;\n\n#if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)\n\n case TARGET_NR_readlinkat:\n\n {\n\n void *p2;\n\n p = lock_user_string(arg2);\n\n p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);\n\n if (!p || !p2)\n\n \tret = -TARGET_EFAULT;\n\n else\n\n ret = get_errno(sys_readlinkat(arg1, path(p), p2, arg4));\n\n unlock_user(p2, arg3, ret);\n\n unlock_user(p, arg2, 0);\n\n }\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_uselib\n\n case TARGET_NR_uselib:\n\n goto unimplemented;\n\n#endif\n\n#ifdef TARGET_NR_swapon\n\n case TARGET_NR_swapon:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(swapon(p, arg2));\n\n unlock_user(p, arg1, 0);\n\n break;\n\n#endif\n\n case TARGET_NR_reboot:\n\n if (!(p = lock_user_string(arg4)))\n\n goto efault;\n\n ret = reboot(arg1, arg2, arg3, p);\n\n unlock_user(p, arg4, 0);\n\n break;\n\n#ifdef TARGET_NR_readdir\n\n case TARGET_NR_readdir:\n\n goto unimplemented;\n\n#endif\n\n#ifdef TARGET_NR_mmap\n\n case TARGET_NR_mmap:\n\n#if (defined(TARGET_I386) && defined(TARGET_ABI32)) || defined(TARGET_ARM) || \\\n\n defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) \\\n\n || defined(TARGET_S390X)\n\n {\n\n abi_ulong *v;\n\n abi_ulong v1, v2, v3, v4, v5, v6;\n\n if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))\n\n goto efault;\n\n v1 = tswapal(v[0]);\n\n v2 = tswapal(v[1]);\n\n v3 = tswapal(v[2]);\n\n v4 = tswapal(v[3]);\n\n v5 = tswapal(v[4]);\n\n v6 = tswapal(v[5]);\n\n unlock_user(v, arg1, 0);\n\n ret = get_errno(target_mmap(v1, v2, v3,\n\n target_to_host_bitmask(v4, mmap_flags_tbl),\n\n v5, v6));\n\n }\n\n#else\n\n ret = get_errno(target_mmap(arg1, arg2, arg3,\n\n target_to_host_bitmask(arg4, mmap_flags_tbl),\n\n arg5,\n\n arg6));\n\n#endif\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_mmap2\n\n case TARGET_NR_mmap2:\n\n#ifndef MMAP_SHIFT\n\n#define MMAP_SHIFT 12\n\n#endif\n\n ret = get_errno(target_mmap(arg1, arg2, arg3,\n\n target_to_host_bitmask(arg4, mmap_flags_tbl),\n\n arg5,\n\n arg6 << MMAP_SHIFT));\n\n break;\n\n#endif\n\n case TARGET_NR_munmap:\n\n ret = get_errno(target_munmap(arg1, arg2));\n\n break;\n\n case TARGET_NR_mprotect:\n\n {\n\n TaskState *ts = ((CPUArchState *)cpu_env)->opaque;\n\n /* Special hack to detect libc making the stack executable. */\n\n if ((arg3 & PROT_GROWSDOWN)\n\n && arg1 >= ts->info->stack_limit\n\n && arg1 <= ts->info->start_stack) {\n\n arg3 &= ~PROT_GROWSDOWN;\n\n arg2 = arg2 + arg1 - ts->info->stack_limit;\n\n arg1 = ts->info->stack_limit;\n\n }\n\n }\n\n ret = get_errno(target_mprotect(arg1, arg2, arg3));\n\n break;\n\n#ifdef TARGET_NR_mremap\n\n case TARGET_NR_mremap:\n\n ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));\n\n break;\n\n#endif\n\n /* ??? msync/mlock/munlock are broken for softmmu. */\n\n#ifdef TARGET_NR_msync\n\n case TARGET_NR_msync:\n\n ret = get_errno(msync(g2h(arg1), arg2, arg3));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_mlock\n\n case TARGET_NR_mlock:\n\n ret = get_errno(mlock(g2h(arg1), arg2));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_munlock\n\n case TARGET_NR_munlock:\n\n ret = get_errno(munlock(g2h(arg1), arg2));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_mlockall\n\n case TARGET_NR_mlockall:\n\n ret = get_errno(mlockall(arg1));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_munlockall\n\n case TARGET_NR_munlockall:\n\n ret = get_errno(munlockall());\n\n break;\n\n#endif\n\n case TARGET_NR_truncate:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(truncate(p, arg2));\n\n unlock_user(p, arg1, 0);\n\n break;\n\n case TARGET_NR_ftruncate:\n\n ret = get_errno(ftruncate(arg1, arg2));\n\n break;\n\n case TARGET_NR_fchmod:\n\n ret = get_errno(fchmod(arg1, arg2));\n\n break;\n\n#if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)\n\n case TARGET_NR_fchmodat:\n\n if (!(p = lock_user_string(arg2)))\n\n goto efault;\n\n ret = get_errno(sys_fchmodat(arg1, p, arg3));\n\n unlock_user(p, arg2, 0);\n\n break;\n\n#endif\n\n case TARGET_NR_getpriority:\n\n /* Note that negative values are valid for getpriority, so we must\n\n differentiate based on errno settings. */\n\n errno = 0;\n\n ret = getpriority(arg1, arg2);\n\n if (ret == -1 && errno != 0) {\n\n ret = -host_to_target_errno(errno);\n\n break;\n\n }\n\n#ifdef TARGET_ALPHA\n\n /* Return value is the unbiased priority. Signal no error. */\n\n ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0;\n\n#else\n\n /* Return value is a biased priority to avoid negative numbers. */\n\n ret = 20 - ret;\n\n#endif\n\n break;\n\n case TARGET_NR_setpriority:\n\n ret = get_errno(setpriority(arg1, arg2, arg3));\n\n break;\n\n#ifdef TARGET_NR_profil\n\n case TARGET_NR_profil:\n\n goto unimplemented;\n\n#endif\n\n case TARGET_NR_statfs:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(statfs(path(p), &stfs));\n\n unlock_user(p, arg1, 0);\n\n convert_statfs:\n\n if (!is_error(ret)) {\n\n struct target_statfs *target_stfs;\n\n\n\n if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))\n\n goto efault;\n\n __put_user(stfs.f_type, &target_stfs->f_type);\n\n __put_user(stfs.f_bsize, &target_stfs->f_bsize);\n\n __put_user(stfs.f_blocks, &target_stfs->f_blocks);\n\n __put_user(stfs.f_bfree, &target_stfs->f_bfree);\n\n __put_user(stfs.f_bavail, &target_stfs->f_bavail);\n\n __put_user(stfs.f_files, &target_stfs->f_files);\n\n __put_user(stfs.f_ffree, &target_stfs->f_ffree);\n\n __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);\n\n __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);\n\n __put_user(stfs.f_namelen, &target_stfs->f_namelen);\n\n __put_user(stfs.f_frsize, &target_stfs->f_frsize);\n\n memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));\n\n unlock_user_struct(target_stfs, arg2, 1);\n\n }\n\n break;\n\n case TARGET_NR_fstatfs:\n\n ret = get_errno(fstatfs(arg1, &stfs));\n\n goto convert_statfs;\n\n#ifdef TARGET_NR_statfs64\n\n case TARGET_NR_statfs64:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(statfs(path(p), &stfs));\n\n unlock_user(p, arg1, 0);\n\n convert_statfs64:\n\n if (!is_error(ret)) {\n\n struct target_statfs64 *target_stfs;\n\n\n\n if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))\n\n goto efault;\n\n __put_user(stfs.f_type, &target_stfs->f_type);\n\n __put_user(stfs.f_bsize, &target_stfs->f_bsize);\n\n __put_user(stfs.f_blocks, &target_stfs->f_blocks);\n\n __put_user(stfs.f_bfree, &target_stfs->f_bfree);\n\n __put_user(stfs.f_bavail, &target_stfs->f_bavail);\n\n __put_user(stfs.f_files, &target_stfs->f_files);\n\n __put_user(stfs.f_ffree, &target_stfs->f_ffree);\n\n __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);\n\n __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);\n\n __put_user(stfs.f_namelen, &target_stfs->f_namelen);\n\n __put_user(stfs.f_frsize, &target_stfs->f_frsize);\n\n memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));\n\n unlock_user_struct(target_stfs, arg3, 1);\n\n }\n\n break;\n\n case TARGET_NR_fstatfs64:\n\n ret = get_errno(fstatfs(arg1, &stfs));\n\n goto convert_statfs64;\n\n#endif\n\n#ifdef TARGET_NR_ioperm\n\n case TARGET_NR_ioperm:\n\n goto unimplemented;\n\n#endif\n\n#ifdef TARGET_NR_socketcall\n\n case TARGET_NR_socketcall:\n\n ret = do_socketcall(arg1, arg2);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_accept\n\n case TARGET_NR_accept:\n\n ret = do_accept(arg1, arg2, arg3);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_bind\n\n case TARGET_NR_bind:\n\n ret = do_bind(arg1, arg2, arg3);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_connect\n\n case TARGET_NR_connect:\n\n ret = do_connect(arg1, arg2, arg3);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_getpeername\n\n case TARGET_NR_getpeername:\n\n ret = do_getpeername(arg1, arg2, arg3);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_getsockname\n\n case TARGET_NR_getsockname:\n\n ret = do_getsockname(arg1, arg2, arg3);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_getsockopt\n\n case TARGET_NR_getsockopt:\n\n ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_listen\n\n case TARGET_NR_listen:\n\n ret = get_errno(listen(arg1, arg2));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_recv\n\n case TARGET_NR_recv:\n\n ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_recvfrom\n\n case TARGET_NR_recvfrom:\n\n ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_recvmsg\n\n case TARGET_NR_recvmsg:\n\n ret = do_sendrecvmsg(arg1, arg2, arg3, 0);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_send\n\n case TARGET_NR_send:\n\n ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_sendmsg\n\n case TARGET_NR_sendmsg:\n\n ret = do_sendrecvmsg(arg1, arg2, arg3, 1);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_sendto\n\n case TARGET_NR_sendto:\n\n ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_shutdown\n\n case TARGET_NR_shutdown:\n\n ret = get_errno(shutdown(arg1, arg2));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_socket\n\n case TARGET_NR_socket:\n\n ret = do_socket(arg1, arg2, arg3);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_socketpair\n\n case TARGET_NR_socketpair:\n\n ret = do_socketpair(arg1, arg2, arg3, arg4);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_setsockopt\n\n case TARGET_NR_setsockopt:\n\n ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);\n\n break;\n\n#endif\n\n\n\n case TARGET_NR_syslog:\n\n if (!(p = lock_user_string(arg2)))\n\n goto efault;\n\n ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));\n\n unlock_user(p, arg2, 0);\n\n break;\n\n\n\n case TARGET_NR_setitimer:\n\n {\n\n struct itimerval value, ovalue, *pvalue;\n\n\n\n if (arg2) {\n\n pvalue = &value;\n\n if (copy_from_user_timeval(&pvalue->it_interval, arg2)\n\n || copy_from_user_timeval(&pvalue->it_value,\n\n arg2 + sizeof(struct target_timeval)))\n\n goto efault;\n\n } else {\n\n pvalue = NULL;\n\n }\n\n ret = get_errno(setitimer(arg1, pvalue, &ovalue));\n\n if (!is_error(ret) && arg3) {\n\n if (copy_to_user_timeval(arg3,\n\n &ovalue.it_interval)\n\n || copy_to_user_timeval(arg3 + sizeof(struct target_timeval),\n\n &ovalue.it_value))\n\n goto efault;\n\n }\n\n }\n\n break;\n\n case TARGET_NR_getitimer:\n\n {\n\n struct itimerval value;\n\n\n\n ret = get_errno(getitimer(arg1, &value));\n\n if (!is_error(ret) && arg2) {\n\n if (copy_to_user_timeval(arg2,\n\n &value.it_interval)\n\n || copy_to_user_timeval(arg2 + sizeof(struct target_timeval),\n\n &value.it_value))\n\n goto efault;\n\n }\n\n }\n\n break;\n\n case TARGET_NR_stat:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(stat(path(p), &st));\n\n unlock_user(p, arg1, 0);\n\n goto do_stat;\n\n case TARGET_NR_lstat:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(lstat(path(p), &st));\n\n unlock_user(p, arg1, 0);\n\n goto do_stat;\n\n case TARGET_NR_fstat:\n\n {\n\n ret = get_errno(fstat(arg1, &st));\n\n do_stat:\n\n if (!is_error(ret)) {\n\n struct target_stat *target_st;\n\n\n\n if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))\n\n goto efault;\n\n memset(target_st, 0, sizeof(*target_st));\n\n __put_user(st.st_dev, &target_st->st_dev);\n\n __put_user(st.st_ino, &target_st->st_ino);\n\n __put_user(st.st_mode, &target_st->st_mode);\n\n __put_user(st.st_uid, &target_st->st_uid);\n\n __put_user(st.st_gid, &target_st->st_gid);\n\n __put_user(st.st_nlink, &target_st->st_nlink);\n\n __put_user(st.st_rdev, &target_st->st_rdev);\n\n __put_user(st.st_size, &target_st->st_size);\n\n __put_user(st.st_blksize, &target_st->st_blksize);\n\n __put_user(st.st_blocks, &target_st->st_blocks);\n\n __put_user(st.st_atime, &target_st->target_st_atime);\n\n __put_user(st.st_mtime, &target_st->target_st_mtime);\n\n __put_user(st.st_ctime, &target_st->target_st_ctime);\n\n unlock_user_struct(target_st, arg2, 1);\n\n }\n\n }\n\n break;\n\n#ifdef TARGET_NR_olduname\n\n case TARGET_NR_olduname:\n\n goto unimplemented;\n\n#endif\n\n#ifdef TARGET_NR_iopl\n\n case TARGET_NR_iopl:\n\n goto unimplemented;\n\n#endif\n\n case TARGET_NR_vhangup:\n\n ret = get_errno(vhangup());\n\n break;\n\n#ifdef TARGET_NR_idle\n\n case TARGET_NR_idle:\n\n goto unimplemented;\n\n#endif\n\n#ifdef TARGET_NR_syscall\n\n case TARGET_NR_syscall:\n\n ret = do_syscall(cpu_env, arg1 & 0xffff, arg2, arg3, arg4, arg5,\n\n arg6, arg7, arg8, 0);\n\n break;\n\n#endif\n\n case TARGET_NR_wait4:\n\n {\n\n int status;\n\n abi_long status_ptr = arg2;\n\n struct rusage rusage, *rusage_ptr;\n\n abi_ulong target_rusage = arg4;\n\n if (target_rusage)\n\n rusage_ptr = &rusage;\n\n else\n\n rusage_ptr = NULL;\n\n ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));\n\n if (!is_error(ret)) {\n\n if (status_ptr && ret) {\n\n status = host_to_target_waitstatus(status);\n\n if (put_user_s32(status, status_ptr))\n\n goto efault;\n\n }\n\n if (target_rusage)\n\n host_to_target_rusage(target_rusage, &rusage);\n\n }\n\n }\n\n break;\n\n#ifdef TARGET_NR_swapoff\n\n case TARGET_NR_swapoff:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(swapoff(p));\n\n unlock_user(p, arg1, 0);\n\n break;\n\n#endif\n\n case TARGET_NR_sysinfo:\n\n {\n\n struct target_sysinfo *target_value;\n\n struct sysinfo value;\n\n ret = get_errno(sysinfo(&value));\n\n if (!is_error(ret) && arg1)\n\n {\n\n if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))\n\n goto efault;\n\n __put_user(value.uptime, &target_value->uptime);\n\n __put_user(value.loads[0], &target_value->loads[0]);\n\n __put_user(value.loads[1], &target_value->loads[1]);\n\n __put_user(value.loads[2], &target_value->loads[2]);\n\n __put_user(value.totalram, &target_value->totalram);\n\n __put_user(value.freeram, &target_value->freeram);\n\n __put_user(value.sharedram, &target_value->sharedram);\n\n __put_user(value.bufferram, &target_value->bufferram);\n\n __put_user(value.totalswap, &target_value->totalswap);\n\n __put_user(value.freeswap, &target_value->freeswap);\n\n __put_user(value.procs, &target_value->procs);\n\n __put_user(value.totalhigh, &target_value->totalhigh);\n\n __put_user(value.freehigh, &target_value->freehigh);\n\n __put_user(value.mem_unit, &target_value->mem_unit);\n\n unlock_user_struct(target_value, arg1, 1);\n\n }\n\n }\n\n break;\n\n#ifdef TARGET_NR_ipc\n\n case TARGET_NR_ipc:\n\n\tret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);\n\n\tbreak;\n\n#endif\n\n#ifdef TARGET_NR_semget\n\n case TARGET_NR_semget:\n\n ret = get_errno(semget(arg1, arg2, arg3));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_semop\n\n case TARGET_NR_semop:\n\n ret = get_errno(do_semop(arg1, arg2, arg3));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_semctl\n\n case TARGET_NR_semctl:\n\n ret = do_semctl(arg1, arg2, arg3, (union target_semun)(abi_ulong)arg4);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_msgctl\n\n case TARGET_NR_msgctl:\n\n ret = do_msgctl(arg1, arg2, arg3);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_msgget\n\n case TARGET_NR_msgget:\n\n ret = get_errno(msgget(arg1, arg2));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_msgrcv\n\n case TARGET_NR_msgrcv:\n\n ret = do_msgrcv(arg1, arg2, arg3, arg4, arg5);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_msgsnd\n\n case TARGET_NR_msgsnd:\n\n ret = do_msgsnd(arg1, arg2, arg3, arg4);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_shmget\n\n case TARGET_NR_shmget:\n\n ret = get_errno(shmget(arg1, arg2, arg3));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_shmctl\n\n case TARGET_NR_shmctl:\n\n ret = do_shmctl(arg1, arg2, arg3);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_shmat\n\n case TARGET_NR_shmat:\n\n ret = do_shmat(arg1, arg2, arg3);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_shmdt\n\n case TARGET_NR_shmdt:\n\n ret = do_shmdt(arg1);\n\n break;\n\n#endif\n\n case TARGET_NR_fsync:\n\n ret = get_errno(fsync(arg1));\n\n break;\n\n case TARGET_NR_clone:\n\n#if defined(TARGET_SH4) || defined(TARGET_ALPHA)\n\n ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4));\n\n#elif defined(TARGET_CRIS)\n\n ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg4, arg5));\n\n#elif defined(TARGET_S390X)\n\n ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg5, arg4));\n\n#else\n\n ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5));\n\n#endif\n\n break;\n\n#ifdef __NR_exit_group\n\n /* new thread calls */\n\n case TARGET_NR_exit_group:\n\n#ifdef TARGET_GPROF\n\n _mcleanup();\n\n#endif\n\n gdb_exit(cpu_env, arg1);\n\n ret = get_errno(exit_group(arg1));\n\n break;\n\n#endif\n\n case TARGET_NR_setdomainname:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(setdomainname(p, arg2));\n\n unlock_user(p, arg1, 0);\n\n break;\n\n case TARGET_NR_uname:\n\n /* no need to transcode because we use the linux syscall */\n\n {\n\n struct new_utsname * buf;\n\n\n\n if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))\n\n goto efault;\n\n ret = get_errno(sys_uname(buf));\n\n if (!is_error(ret)) {\n\n /* Overrite the native machine name with whatever is being\n\n emulated. */\n\n strcpy (buf->machine, cpu_to_uname_machine(cpu_env));\n\n /* Allow the user to override the reported release. */\n\n if (qemu_uname_release && *qemu_uname_release)\n\n strcpy (buf->release, qemu_uname_release);\n\n }\n\n unlock_user_struct(buf, arg1, 1);\n\n }\n\n break;\n\n#ifdef TARGET_I386\n\n case TARGET_NR_modify_ldt:\n\n ret = do_modify_ldt(cpu_env, arg1, arg2, arg3);\n\n break;\n\n#if !defined(TARGET_X86_64)\n\n case TARGET_NR_vm86old:\n\n goto unimplemented;\n\n case TARGET_NR_vm86:\n\n ret = do_vm86(cpu_env, arg1, arg2);\n\n break;\n\n#endif\n\n#endif\n\n case TARGET_NR_adjtimex:\n\n goto unimplemented;\n\n#ifdef TARGET_NR_create_module\n\n case TARGET_NR_create_module:\n\n#endif\n\n case TARGET_NR_init_module:\n\n case TARGET_NR_delete_module:\n\n#ifdef TARGET_NR_get_kernel_syms\n\n case TARGET_NR_get_kernel_syms:\n\n#endif\n\n goto unimplemented;\n\n case TARGET_NR_quotactl:\n\n goto unimplemented;\n\n case TARGET_NR_getpgid:\n\n ret = get_errno(getpgid(arg1));\n\n break;\n\n case TARGET_NR_fchdir:\n\n ret = get_errno(fchdir(arg1));\n\n break;\n\n#ifdef TARGET_NR_bdflush /* not on x86_64 */\n\n case TARGET_NR_bdflush:\n\n goto unimplemented;\n\n#endif\n\n#ifdef TARGET_NR_sysfs\n\n case TARGET_NR_sysfs:\n\n goto unimplemented;\n\n#endif\n\n case TARGET_NR_personality:\n\n ret = get_errno(personality(arg1));\n\n break;\n\n#ifdef TARGET_NR_afs_syscall\n\n case TARGET_NR_afs_syscall:\n\n goto unimplemented;\n\n#endif\n\n#ifdef TARGET_NR__llseek /* Not on alpha */\n\n case TARGET_NR__llseek:\n\n {\n\n int64_t res;\n\n#if !defined(__NR_llseek)\n\n res = lseek(arg1, ((uint64_t)arg2 << 32) | arg3, arg5);\n\n if (res == -1) {\n\n ret = get_errno(res);\n\n } else {\n\n ret = 0;\n\n }\n\n#else\n\n ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));\n\n#endif\n\n if ((ret == 0) && put_user_s64(res, arg4)) {\n\n goto efault;\n\n }\n\n }\n\n break;\n\n#endif\n\n case TARGET_NR_getdents:\n\n#if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64\n\n {\n\n struct target_dirent *target_dirp;\n\n struct linux_dirent *dirp;\n\n abi_long count = arg3;\n\n\n\n\t dirp = malloc(count);\n\n\t if (!dirp) {\n\n ret = -TARGET_ENOMEM;\n\n goto fail;\n\n }\n\n\n\n ret = get_errno(sys_getdents(arg1, dirp, count));\n\n if (!is_error(ret)) {\n\n struct linux_dirent *de;\n\n\t\tstruct target_dirent *tde;\n\n int len = ret;\n\n int reclen, treclen;\n\n\t\tint count1, tnamelen;\n\n\n\n\t\tcount1 = 0;\n\n de = dirp;\n\n if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))\n\n goto efault;\n\n\t\ttde = target_dirp;\n\n while (len > 0) {\n\n reclen = de->d_reclen;\n\n tnamelen = reclen - offsetof(struct linux_dirent, d_name);\n\n assert(tnamelen >= 0);\n\n treclen = tnamelen + offsetof(struct target_dirent, d_name);\n\n assert(count1 + treclen <= count);\n\n tde->d_reclen = tswap16(treclen);\n\n tde->d_ino = tswapal(de->d_ino);\n\n tde->d_off = tswapal(de->d_off);\n\n memcpy(tde->d_name, de->d_name, tnamelen);\n\n de = (struct linux_dirent *)((char *)de + reclen);\n\n len -= reclen;\n\n tde = (struct target_dirent *)((char *)tde + treclen);\n\n\t\t count1 += treclen;\n\n }\n\n\t\tret = count1;\n\n unlock_user(target_dirp, arg2, ret);\n\n }\n\n\t free(dirp);\n\n }\n\n#else\n\n {\n\n struct linux_dirent *dirp;\n\n abi_long count = arg3;\n\n\n\n if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))\n\n goto efault;\n\n ret = get_errno(sys_getdents(arg1, dirp, count));\n\n if (!is_error(ret)) {\n\n struct linux_dirent *de;\n\n int len = ret;\n\n int reclen;\n\n de = dirp;\n\n while (len > 0) {\n\n reclen = de->d_reclen;\n\n if (reclen > len)\n\n break;\n\n de->d_reclen = tswap16(reclen);\n\n tswapls(&de->d_ino);\n\n tswapls(&de->d_off);\n\n de = (struct linux_dirent *)((char *)de + reclen);\n\n len -= reclen;\n\n }\n\n }\n\n unlock_user(dirp, arg2, ret);\n\n }\n\n#endif\n\n break;\n\n#if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)\n\n case TARGET_NR_getdents64:\n\n {\n\n struct linux_dirent64 *dirp;\n\n abi_long count = arg3;\n\n if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))\n\n goto efault;\n\n ret = get_errno(sys_getdents64(arg1, dirp, count));\n\n if (!is_error(ret)) {\n\n struct linux_dirent64 *de;\n\n int len = ret;\n\n int reclen;\n\n de = dirp;\n\n while (len > 0) {\n\n reclen = de->d_reclen;\n\n if (reclen > len)\n\n break;\n\n de->d_reclen = tswap16(reclen);\n\n tswap64s((uint64_t *)&de->d_ino);\n\n tswap64s((uint64_t *)&de->d_off);\n\n de = (struct linux_dirent64 *)((char *)de + reclen);\n\n len -= reclen;\n\n }\n\n }\n\n unlock_user(dirp, arg2, ret);\n\n }\n\n break;\n\n#endif /* TARGET_NR_getdents64 */\n\n#if defined(TARGET_NR__newselect) || defined(TARGET_S390X)\n\n#ifdef TARGET_S390X\n\n case TARGET_NR_select:\n\n#else\n\n case TARGET_NR__newselect:\n\n#endif\n\n ret = do_select(arg1, arg2, arg3, arg4, arg5);\n\n break;\n\n#endif\n\n#if defined(TARGET_NR_poll) || defined(TARGET_NR_ppoll)\n\n# ifdef TARGET_NR_poll\n\n case TARGET_NR_poll:\n\n# endif\n\n# ifdef TARGET_NR_ppoll\n\n case TARGET_NR_ppoll:\n\n# endif\n\n {\n\n struct target_pollfd *target_pfd;\n\n unsigned int nfds = arg2;\n\n int timeout = arg3;\n\n struct pollfd *pfd;\n\n unsigned int i;\n\n\n\n target_pfd = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_pollfd) * nfds, 1);\n\n if (!target_pfd)\n\n goto efault;\n\n\n\n pfd = alloca(sizeof(struct pollfd) * nfds);\n\n for(i = 0; i < nfds; i++) {\n\n pfd[i].fd = tswap32(target_pfd[i].fd);\n\n pfd[i].events = tswap16(target_pfd[i].events);\n\n }\n\n\n\n# ifdef TARGET_NR_ppoll\n\n if (num == TARGET_NR_ppoll) {\n\n struct timespec _timeout_ts, *timeout_ts = &_timeout_ts;\n\n target_sigset_t *target_set;\n\n sigset_t _set, *set = &_set;\n\n\n\n if (arg3) {\n\n if (target_to_host_timespec(timeout_ts, arg3)) {\n\n unlock_user(target_pfd, arg1, 0);\n\n goto efault;\n\n }\n\n } else {\n\n timeout_ts = NULL;\n\n }\n\n\n\n if (arg4) {\n\n target_set = lock_user(VERIFY_READ, arg4, sizeof(target_sigset_t), 1);\n\n if (!target_set) {\n\n unlock_user(target_pfd, arg1, 0);\n\n goto efault;\n\n }\n\n target_to_host_sigset(set, target_set);\n\n } else {\n\n set = NULL;\n\n }\n\n\n\n ret = get_errno(sys_ppoll(pfd, nfds, timeout_ts, set, _NSIG/8));\n\n\n\n if (!is_error(ret) && arg3) {\n\n host_to_target_timespec(arg3, timeout_ts);\n\n }\n\n if (arg4) {\n\n unlock_user(target_set, arg4, 0);\n\n }\n\n } else\n\n# endif\n\n ret = get_errno(poll(pfd, nfds, timeout));\n\n\n\n if (!is_error(ret)) {\n\n for(i = 0; i < nfds; i++) {\n\n target_pfd[i].revents = tswap16(pfd[i].revents);\n\n }\n\n }\n\n unlock_user(target_pfd, arg1, sizeof(struct target_pollfd) * nfds);\n\n }\n\n break;\n\n#endif\n\n case TARGET_NR_flock:\n\n /* NOTE: the flock constant seems to be the same for every\n\n Linux platform */\n\n ret = get_errno(flock(arg1, arg2));\n\n break;\n\n case TARGET_NR_readv:\n\n {\n\n int count = arg3;\n\n struct iovec *vec;\n\n\n\n vec = alloca(count * sizeof(struct iovec));\n\n if (lock_iovec(VERIFY_WRITE, vec, arg2, count, 0) < 0)\n\n goto efault;\n\n ret = get_errno(readv(arg1, vec, count));\n\n unlock_iovec(vec, arg2, count, 1);\n\n }\n\n break;\n\n case TARGET_NR_writev:\n\n {\n\n int count = arg3;\n\n struct iovec *vec;\n\n\n\n vec = alloca(count * sizeof(struct iovec));\n\n if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0)\n\n goto efault;\n\n ret = get_errno(writev(arg1, vec, count));\n\n unlock_iovec(vec, arg2, count, 0);\n\n }\n\n break;\n\n case TARGET_NR_getsid:\n\n ret = get_errno(getsid(arg1));\n\n break;\n\n#if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */\n\n case TARGET_NR_fdatasync:\n\n ret = get_errno(fdatasync(arg1));\n\n break;\n\n#endif\n\n case TARGET_NR__sysctl:\n\n /* We don't implement this, but ENOTDIR is always a safe\n\n return value. */\n\n ret = -TARGET_ENOTDIR;\n\n break;\n\n case TARGET_NR_sched_getaffinity:\n\n {\n\n unsigned int mask_size;\n\n unsigned long *mask;\n\n\n\n /*\n\n * sched_getaffinity needs multiples of ulong, so need to take\n\n * care of mismatches between target ulong and host ulong sizes.\n\n */\n\n if (arg2 & (sizeof(abi_ulong) - 1)) {\n\n ret = -TARGET_EINVAL;\n\n break;\n\n }\n\n mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);\n\n\n\n mask = alloca(mask_size);\n\n ret = get_errno(sys_sched_getaffinity(arg1, mask_size, mask));\n\n\n\n if (!is_error(ret)) {\n\n if (copy_to_user(arg3, mask, ret)) {\n\n goto efault;\n\n }\n\n }\n\n }\n\n break;\n\n case TARGET_NR_sched_setaffinity:\n\n {\n\n unsigned int mask_size;\n\n unsigned long *mask;\n\n\n\n /*\n\n * sched_setaffinity needs multiples of ulong, so need to take\n\n * care of mismatches between target ulong and host ulong sizes.\n\n */\n\n if (arg2 & (sizeof(abi_ulong) - 1)) {\n\n ret = -TARGET_EINVAL;\n\n break;\n\n }\n\n mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);\n\n\n\n mask = alloca(mask_size);\n\n if (!lock_user_struct(VERIFY_READ, p, arg3, 1)) {\n\n goto efault;\n\n }\n\n memcpy(mask, p, arg2);\n\n unlock_user_struct(p, arg2, 0);\n\n\n\n ret = get_errno(sys_sched_setaffinity(arg1, mask_size, mask));\n\n }\n\n break;\n\n case TARGET_NR_sched_setparam:\n\n {\n\n struct sched_param *target_schp;\n\n struct sched_param schp;\n\n\n\n if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1))\n\n goto efault;\n\n schp.sched_priority = tswap32(target_schp->sched_priority);\n\n unlock_user_struct(target_schp, arg2, 0);\n\n ret = get_errno(sched_setparam(arg1, &schp));\n\n }\n\n break;\n\n case TARGET_NR_sched_getparam:\n\n {\n\n struct sched_param *target_schp;\n\n struct sched_param schp;\n\n ret = get_errno(sched_getparam(arg1, &schp));\n\n if (!is_error(ret)) {\n\n if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))\n\n goto efault;\n\n target_schp->sched_priority = tswap32(schp.sched_priority);\n\n unlock_user_struct(target_schp, arg2, 1);\n\n }\n\n }\n\n break;\n\n case TARGET_NR_sched_setscheduler:\n\n {\n\n struct sched_param *target_schp;\n\n struct sched_param schp;\n\n if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1))\n\n goto efault;\n\n schp.sched_priority = tswap32(target_schp->sched_priority);\n\n unlock_user_struct(target_schp, arg3, 0);\n\n ret = get_errno(sched_setscheduler(arg1, arg2, &schp));\n\n }\n\n break;\n\n case TARGET_NR_sched_getscheduler:\n\n ret = get_errno(sched_getscheduler(arg1));\n\n break;\n\n case TARGET_NR_sched_yield:\n\n ret = get_errno(sched_yield());\n\n break;\n\n case TARGET_NR_sched_get_priority_max:\n\n ret = get_errno(sched_get_priority_max(arg1));\n\n break;\n\n case TARGET_NR_sched_get_priority_min:\n\n ret = get_errno(sched_get_priority_min(arg1));\n\n break;\n\n case TARGET_NR_sched_rr_get_interval:\n\n {\n\n struct timespec ts;\n\n ret = get_errno(sched_rr_get_interval(arg1, &ts));\n\n if (!is_error(ret)) {\n\n host_to_target_timespec(arg2, &ts);\n\n }\n\n }\n\n break;\n\n case TARGET_NR_nanosleep:\n\n {\n\n struct timespec req, rem;\n\n target_to_host_timespec(&req, arg1);\n\n ret = get_errno(nanosleep(&req, &rem));\n\n if (is_error(ret) && arg2) {\n\n host_to_target_timespec(arg2, &rem);\n\n }\n\n }\n\n break;\n\n#ifdef TARGET_NR_query_module\n\n case TARGET_NR_query_module:\n\n goto unimplemented;\n\n#endif\n\n#ifdef TARGET_NR_nfsservctl\n\n case TARGET_NR_nfsservctl:\n\n goto unimplemented;\n\n#endif\n\n case TARGET_NR_prctl:\n\n switch (arg1) {\n\n case PR_GET_PDEATHSIG:\n\n {\n\n int deathsig;\n\n ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));\n\n if (!is_error(ret) && arg2\n\n && put_user_ual(deathsig, arg2)) {\n\n goto efault;\n\n }\n\n break;\n\n }\n\n#ifdef PR_GET_NAME\n\n case PR_GET_NAME:\n\n {\n\n void *name = lock_user(VERIFY_WRITE, arg2, 16, 1);\n\n if (!name) {\n\n goto efault;\n\n }\n\n ret = get_errno(prctl(arg1, (unsigned long)name,\n\n arg3, arg4, arg5));\n\n unlock_user(name, arg2, 16);\n\n break;\n\n }\n\n case PR_SET_NAME:\n\n {\n\n void *name = lock_user(VERIFY_READ, arg2, 16, 1);\n\n if (!name) {\n\n goto efault;\n\n }\n\n ret = get_errno(prctl(arg1, (unsigned long)name,\n\n arg3, arg4, arg5));\n\n unlock_user(name, arg2, 0);\n\n break;\n\n }\n\n#endif\n\n default:\n\n /* Most prctl options have no pointer arguments */\n\n ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5));\n\n break;\n\n }\n\n break;\n\n#ifdef TARGET_NR_arch_prctl\n\n case TARGET_NR_arch_prctl:\n\n#if defined(TARGET_I386) && !defined(TARGET_ABI32)\n\n ret = do_arch_prctl(cpu_env, arg1, arg2);\n\n break;\n\n#else\n\n goto unimplemented;\n\n#endif\n\n#endif\n\n#ifdef TARGET_NR_pread\n\n case TARGET_NR_pread:\n\n if (regpairs_aligned(cpu_env))\n\n arg4 = arg5;\n\n if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))\n\n goto efault;\n\n ret = get_errno(pread(arg1, p, arg3, arg4));\n\n unlock_user(p, arg2, ret);\n\n break;\n\n case TARGET_NR_pwrite:\n\n if (regpairs_aligned(cpu_env))\n\n arg4 = arg5;\n\n if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))\n\n goto efault;\n\n ret = get_errno(pwrite(arg1, p, arg3, arg4));\n\n unlock_user(p, arg2, 0);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_pread64\n\n case TARGET_NR_pread64:\n\n if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))\n\n goto efault;\n\n ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));\n\n unlock_user(p, arg2, ret);\n\n break;\n\n case TARGET_NR_pwrite64:\n\n if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))\n\n goto efault;\n\n ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));\n\n unlock_user(p, arg2, 0);\n\n break;\n\n#endif\n\n case TARGET_NR_getcwd:\n\n if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))\n\n goto efault;\n\n ret = get_errno(sys_getcwd1(p, arg2));\n\n unlock_user(p, arg1, ret);\n\n break;\n\n case TARGET_NR_capget:\n\n goto unimplemented;\n\n case TARGET_NR_capset:\n\n goto unimplemented;\n\n case TARGET_NR_sigaltstack:\n\n#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \\\n\n defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) || \\\n\n defined(TARGET_M68K) || defined(TARGET_S390X) || defined(TARGET_OPENRISC)\n\n ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUArchState *)cpu_env));\n\n break;\n\n#else\n\n goto unimplemented;\n\n#endif\n\n case TARGET_NR_sendfile:\n\n goto unimplemented;\n\n#ifdef TARGET_NR_getpmsg\n\n case TARGET_NR_getpmsg:\n\n goto unimplemented;\n\n#endif\n\n#ifdef TARGET_NR_putpmsg\n\n case TARGET_NR_putpmsg:\n\n goto unimplemented;\n\n#endif\n\n#ifdef TARGET_NR_vfork\n\n case TARGET_NR_vfork:\n\n ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD,\n\n 0, 0, 0, 0));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_ugetrlimit\n\n case TARGET_NR_ugetrlimit:\n\n {\n\n\tstruct rlimit rlim;\n\n\tint resource = target_to_host_resource(arg1);\n\n\tret = get_errno(getrlimit(resource, &rlim));\n\n\tif (!is_error(ret)) {\n\n\t struct target_rlimit *target_rlim;\n\n if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))\n\n goto efault;\n\n\t target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);\n\n\t target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);\n\n unlock_user_struct(target_rlim, arg2, 1);\n\n\t}\n\n\tbreak;\n\n }\n\n#endif\n\n#ifdef TARGET_NR_truncate64\n\n case TARGET_NR_truncate64:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n\tret = target_truncate64(cpu_env, p, arg2, arg3, arg4);\n\n unlock_user(p, arg1, 0);\n\n\tbreak;\n\n#endif\n\n#ifdef TARGET_NR_ftruncate64\n\n case TARGET_NR_ftruncate64:\n\n\tret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);\n\n\tbreak;\n\n#endif\n\n#ifdef TARGET_NR_stat64\n\n case TARGET_NR_stat64:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(stat(path(p), &st));\n\n unlock_user(p, arg1, 0);\n\n if (!is_error(ret))\n\n ret = host_to_target_stat64(cpu_env, arg2, &st);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_lstat64\n\n case TARGET_NR_lstat64:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(lstat(path(p), &st));\n\n unlock_user(p, arg1, 0);\n\n if (!is_error(ret))\n\n ret = host_to_target_stat64(cpu_env, arg2, &st);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_fstat64\n\n case TARGET_NR_fstat64:\n\n ret = get_errno(fstat(arg1, &st));\n\n if (!is_error(ret))\n\n ret = host_to_target_stat64(cpu_env, arg2, &st);\n\n break;\n\n#endif\n\n#if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)) && \\\n\n (defined(__NR_fstatat64) || defined(__NR_newfstatat))\n\n#ifdef TARGET_NR_fstatat64\n\n case TARGET_NR_fstatat64:\n\n#endif\n\n#ifdef TARGET_NR_newfstatat\n\n case TARGET_NR_newfstatat:\n\n#endif\n\n if (!(p = lock_user_string(arg2)))\n\n goto efault;\n\n#ifdef __NR_fstatat64\n\n ret = get_errno(sys_fstatat64(arg1, path(p), &st, arg4));\n\n#else\n\n ret = get_errno(sys_newfstatat(arg1, path(p), &st, arg4));\n\n#endif\n\n if (!is_error(ret))\n\n ret = host_to_target_stat64(cpu_env, arg3, &st);\n\n break;\n\n#endif\n\n case TARGET_NR_lchown:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));\n\n unlock_user(p, arg1, 0);\n\n break;\n\n#ifdef TARGET_NR_getuid\n\n case TARGET_NR_getuid:\n\n ret = get_errno(high2lowuid(getuid()));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_getgid\n\n case TARGET_NR_getgid:\n\n ret = get_errno(high2lowgid(getgid()));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_geteuid\n\n case TARGET_NR_geteuid:\n\n ret = get_errno(high2lowuid(geteuid()));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_getegid\n\n case TARGET_NR_getegid:\n\n ret = get_errno(high2lowgid(getegid()));\n\n break;\n\n#endif\n\n case TARGET_NR_setreuid:\n\n ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));\n\n break;\n\n case TARGET_NR_setregid:\n\n ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));\n\n break;\n\n case TARGET_NR_getgroups:\n\n {\n\n int gidsetsize = arg1;\n\n target_id *target_grouplist;\n\n gid_t *grouplist;\n\n int i;\n\n\n\n grouplist = alloca(gidsetsize * sizeof(gid_t));\n\n ret = get_errno(getgroups(gidsetsize, grouplist));\n\n if (gidsetsize == 0)\n\n break;\n\n if (!is_error(ret)) {\n\n target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 2, 0);\n\n if (!target_grouplist)\n\n goto efault;\n\n for(i = 0;i < ret; i++)\n\n target_grouplist[i] = tswapid(high2lowgid(grouplist[i]));\n\n unlock_user(target_grouplist, arg2, gidsetsize * 2);\n\n }\n\n }\n\n break;\n\n case TARGET_NR_setgroups:\n\n {\n\n int gidsetsize = arg1;\n\n target_id *target_grouplist;\n\n gid_t *grouplist;\n\n int i;\n\n\n\n grouplist = alloca(gidsetsize * sizeof(gid_t));\n\n target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 2, 1);\n\n if (!target_grouplist) {\n\n ret = -TARGET_EFAULT;\n\n goto fail;\n\n }\n\n for(i = 0;i < gidsetsize; i++)\n\n grouplist[i] = low2highgid(tswapid(target_grouplist[i]));\n\n unlock_user(target_grouplist, arg2, 0);\n\n ret = get_errno(setgroups(gidsetsize, grouplist));\n\n }\n\n break;\n\n case TARGET_NR_fchown:\n\n ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));\n\n break;\n\n#if defined(TARGET_NR_fchownat) && defined(__NR_fchownat)\n\n case TARGET_NR_fchownat:\n\n if (!(p = lock_user_string(arg2))) \n\n goto efault;\n\n ret = get_errno(sys_fchownat(arg1, p, low2highuid(arg3), low2highgid(arg4), arg5));\n\n unlock_user(p, arg2, 0);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_setresuid\n\n case TARGET_NR_setresuid:\n\n ret = get_errno(setresuid(low2highuid(arg1),\n\n low2highuid(arg2),\n\n low2highuid(arg3)));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_getresuid\n\n case TARGET_NR_getresuid:\n\n {\n\n uid_t ruid, euid, suid;\n\n ret = get_errno(getresuid(&ruid, &euid, &suid));\n\n if (!is_error(ret)) {\n\n if (put_user_u16(high2lowuid(ruid), arg1)\n\n || put_user_u16(high2lowuid(euid), arg2)\n\n || put_user_u16(high2lowuid(suid), arg3))\n\n goto efault;\n\n }\n\n }\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_getresgid\n\n case TARGET_NR_setresgid:\n\n ret = get_errno(setresgid(low2highgid(arg1),\n\n low2highgid(arg2),\n\n low2highgid(arg3)));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_getresgid\n\n case TARGET_NR_getresgid:\n\n {\n\n gid_t rgid, egid, sgid;\n\n ret = get_errno(getresgid(&rgid, &egid, &sgid));\n\n if (!is_error(ret)) {\n\n if (put_user_u16(high2lowgid(rgid), arg1)\n\n || put_user_u16(high2lowgid(egid), arg2)\n\n || put_user_u16(high2lowgid(sgid), arg3))\n\n goto efault;\n\n }\n\n }\n\n break;\n\n#endif\n\n case TARGET_NR_chown:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));\n\n unlock_user(p, arg1, 0);\n\n break;\n\n case TARGET_NR_setuid:\n\n ret = get_errno(setuid(low2highuid(arg1)));\n\n break;\n\n case TARGET_NR_setgid:\n\n ret = get_errno(setgid(low2highgid(arg1)));\n\n break;\n\n case TARGET_NR_setfsuid:\n\n ret = get_errno(setfsuid(arg1));\n\n break;\n\n case TARGET_NR_setfsgid:\n\n ret = get_errno(setfsgid(arg1));\n\n break;\n\n\n\n#ifdef TARGET_NR_lchown32\n\n case TARGET_NR_lchown32:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(lchown(p, arg2, arg3));\n\n unlock_user(p, arg1, 0);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_getuid32\n\n case TARGET_NR_getuid32:\n\n ret = get_errno(getuid());\n\n break;\n\n#endif\n\n\n\n#if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)\n\n /* Alpha specific */\n\n case TARGET_NR_getxuid:\n\n {\n\n uid_t euid;\n\n euid=geteuid();\n\n ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid;\n\n }\n\n ret = get_errno(getuid());\n\n break;\n\n#endif\n\n#if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)\n\n /* Alpha specific */\n\n case TARGET_NR_getxgid:\n\n {\n\n uid_t egid;\n\n egid=getegid();\n\n ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid;\n\n }\n\n ret = get_errno(getgid());\n\n break;\n\n#endif\n\n#if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA)\n\n /* Alpha specific */\n\n case TARGET_NR_osf_getsysinfo:\n\n ret = -TARGET_EOPNOTSUPP;\n\n switch (arg1) {\n\n case TARGET_GSI_IEEE_FP_CONTROL:\n\n {\n\n uint64_t swcr, fpcr = cpu_alpha_load_fpcr (cpu_env);\n\n\n\n /* Copied from linux ieee_fpcr_to_swcr. */\n\n swcr = (fpcr >> 35) & SWCR_STATUS_MASK;\n\n swcr |= (fpcr >> 36) & SWCR_MAP_DMZ;\n\n swcr |= (~fpcr >> 48) & (SWCR_TRAP_ENABLE_INV\n\n | SWCR_TRAP_ENABLE_DZE\n\n | SWCR_TRAP_ENABLE_OVF);\n\n swcr |= (~fpcr >> 57) & (SWCR_TRAP_ENABLE_UNF\n\n | SWCR_TRAP_ENABLE_INE);\n\n swcr |= (fpcr >> 47) & SWCR_MAP_UMZ;\n\n swcr |= (~fpcr >> 41) & SWCR_TRAP_ENABLE_DNO;\n\n\n\n if (put_user_u64 (swcr, arg2))\n\n goto efault;\n\n ret = 0;\n\n }\n\n break;\n\n\n\n /* case GSI_IEEE_STATE_AT_SIGNAL:\n\n -- Not implemented in linux kernel.\n\n case GSI_UACPROC:\n\n -- Retrieves current unaligned access state; not much used.\n\n case GSI_PROC_TYPE:\n\n -- Retrieves implver information; surely not used.\n\n case GSI_GET_HWRPB:\n\n -- Grabs a copy of the HWRPB; surely not used.\n\n */\n\n }\n\n break;\n\n#endif\n\n#if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA)\n\n /* Alpha specific */\n\n case TARGET_NR_osf_setsysinfo:\n\n ret = -TARGET_EOPNOTSUPP;\n\n switch (arg1) {\n\n case TARGET_SSI_IEEE_FP_CONTROL:\n\n {\n\n uint64_t swcr, fpcr, orig_fpcr;\n\n\n\n if (get_user_u64 (swcr, arg2)) {\n\n goto efault;\n\n }\n\n orig_fpcr = cpu_alpha_load_fpcr(cpu_env);\n\n fpcr = orig_fpcr & FPCR_DYN_MASK;\n\n\n\n /* Copied from linux ieee_swcr_to_fpcr. */\n\n fpcr |= (swcr & SWCR_STATUS_MASK) << 35;\n\n fpcr |= (swcr & SWCR_MAP_DMZ) << 36;\n\n fpcr |= (~swcr & (SWCR_TRAP_ENABLE_INV\n\n | SWCR_TRAP_ENABLE_DZE\n\n | SWCR_TRAP_ENABLE_OVF)) << 48;\n\n fpcr |= (~swcr & (SWCR_TRAP_ENABLE_UNF\n\n | SWCR_TRAP_ENABLE_INE)) << 57;\n\n fpcr |= (swcr & SWCR_MAP_UMZ ? FPCR_UNDZ | FPCR_UNFD : 0);\n\n fpcr |= (~swcr & SWCR_TRAP_ENABLE_DNO) << 41;\n\n\n\n cpu_alpha_store_fpcr(cpu_env, fpcr);\n\n ret = 0;\n\n }\n\n break;\n\n\n\n case TARGET_SSI_IEEE_RAISE_EXCEPTION:\n\n {\n\n uint64_t exc, fpcr, orig_fpcr;\n\n int si_code;\n\n\n\n if (get_user_u64(exc, arg2)) {\n\n goto efault;\n\n }\n\n\n\n orig_fpcr = cpu_alpha_load_fpcr(cpu_env);\n\n\n\n /* We only add to the exception status here. */\n\n fpcr = orig_fpcr | ((exc & SWCR_STATUS_MASK) << 35);\n\n\n\n cpu_alpha_store_fpcr(cpu_env, fpcr);\n\n ret = 0;\n\n\n\n /* Old exceptions are not signaled. */\n\n fpcr &= ~(orig_fpcr & FPCR_STATUS_MASK);\n\n\n\n /* If any exceptions set by this call,\n\n and are unmasked, send a signal. */\n\n si_code = 0;\n\n if ((fpcr & (FPCR_INE | FPCR_INED)) == FPCR_INE) {\n\n si_code = TARGET_FPE_FLTRES;\n\n }\n\n if ((fpcr & (FPCR_UNF | FPCR_UNFD)) == FPCR_UNF) {\n\n si_code = TARGET_FPE_FLTUND;\n\n }\n\n if ((fpcr & (FPCR_OVF | FPCR_OVFD)) == FPCR_OVF) {\n\n si_code = TARGET_FPE_FLTOVF;\n\n }\n\n if ((fpcr & (FPCR_DZE | FPCR_DZED)) == FPCR_DZE) {\n\n si_code = TARGET_FPE_FLTDIV;\n\n }\n\n if ((fpcr & (FPCR_INV | FPCR_INVD)) == FPCR_INV) {\n\n si_code = TARGET_FPE_FLTINV;\n\n }\n\n if (si_code != 0) {\n\n target_siginfo_t info;\n\n info.si_signo = SIGFPE;\n\n info.si_errno = 0;\n\n info.si_code = si_code;\n\n info._sifields._sigfault._addr\n\n = ((CPUArchState *)cpu_env)->pc;\n\n queue_signal((CPUArchState *)cpu_env, info.si_signo, &info);\n\n }\n\n }\n\n break;\n\n\n\n /* case SSI_NVPAIRS:\n\n -- Used with SSIN_UACPROC to enable unaligned accesses.\n\n case SSI_IEEE_STATE_AT_SIGNAL:\n\n case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:\n\n -- Not implemented in linux kernel\n\n */\n\n }\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_osf_sigprocmask\n\n /* Alpha specific. */\n\n case TARGET_NR_osf_sigprocmask:\n\n {\n\n abi_ulong mask;\n\n int how;\n\n sigset_t set, oldset;\n\n\n\n switch(arg1) {\n\n case TARGET_SIG_BLOCK:\n\n how = SIG_BLOCK;\n\n break;\n\n case TARGET_SIG_UNBLOCK:\n\n how = SIG_UNBLOCK;\n\n break;\n\n case TARGET_SIG_SETMASK:\n\n how = SIG_SETMASK;\n\n break;\n\n default:\n\n ret = -TARGET_EINVAL;\n\n goto fail;\n\n }\n\n mask = arg2;\n\n target_to_host_old_sigset(&set, &mask);\n\n sigprocmask(how, &set, &oldset);\n\n host_to_target_old_sigset(&mask, &oldset);\n\n ret = mask;\n\n }\n\n break;\n\n#endif\n\n\n\n#ifdef TARGET_NR_getgid32\n\n case TARGET_NR_getgid32:\n\n ret = get_errno(getgid());\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_geteuid32\n\n case TARGET_NR_geteuid32:\n\n ret = get_errno(geteuid());\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_getegid32\n\n case TARGET_NR_getegid32:\n\n ret = get_errno(getegid());\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_setreuid32\n\n case TARGET_NR_setreuid32:\n\n ret = get_errno(setreuid(arg1, arg2));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_setregid32\n\n case TARGET_NR_setregid32:\n\n ret = get_errno(setregid(arg1, arg2));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_getgroups32\n\n case TARGET_NR_getgroups32:\n\n {\n\n int gidsetsize = arg1;\n\n uint32_t *target_grouplist;\n\n gid_t *grouplist;\n\n int i;\n\n\n\n grouplist = alloca(gidsetsize * sizeof(gid_t));\n\n ret = get_errno(getgroups(gidsetsize, grouplist));\n\n if (gidsetsize == 0)\n\n break;\n\n if (!is_error(ret)) {\n\n target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0);\n\n if (!target_grouplist) {\n\n ret = -TARGET_EFAULT;\n\n goto fail;\n\n }\n\n for(i = 0;i < ret; i++)\n\n target_grouplist[i] = tswap32(grouplist[i]);\n\n unlock_user(target_grouplist, arg2, gidsetsize * 4);\n\n }\n\n }\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_setgroups32\n\n case TARGET_NR_setgroups32:\n\n {\n\n int gidsetsize = arg1;\n\n uint32_t *target_grouplist;\n\n gid_t *grouplist;\n\n int i;\n\n\n\n grouplist = alloca(gidsetsize * sizeof(gid_t));\n\n target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1);\n\n if (!target_grouplist) {\n\n ret = -TARGET_EFAULT;\n\n goto fail;\n\n }\n\n for(i = 0;i < gidsetsize; i++)\n\n grouplist[i] = tswap32(target_grouplist[i]);\n\n unlock_user(target_grouplist, arg2, 0);\n\n ret = get_errno(setgroups(gidsetsize, grouplist));\n\n }\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_fchown32\n\n case TARGET_NR_fchown32:\n\n ret = get_errno(fchown(arg1, arg2, arg3));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_setresuid32\n\n case TARGET_NR_setresuid32:\n\n ret = get_errno(setresuid(arg1, arg2, arg3));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_getresuid32\n\n case TARGET_NR_getresuid32:\n\n {\n\n uid_t ruid, euid, suid;\n\n ret = get_errno(getresuid(&ruid, &euid, &suid));\n\n if (!is_error(ret)) {\n\n if (put_user_u32(ruid, arg1)\n\n || put_user_u32(euid, arg2)\n\n || put_user_u32(suid, arg3))\n\n goto efault;\n\n }\n\n }\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_setresgid32\n\n case TARGET_NR_setresgid32:\n\n ret = get_errno(setresgid(arg1, arg2, arg3));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_getresgid32\n\n case TARGET_NR_getresgid32:\n\n {\n\n gid_t rgid, egid, sgid;\n\n ret = get_errno(getresgid(&rgid, &egid, &sgid));\n\n if (!is_error(ret)) {\n\n if (put_user_u32(rgid, arg1)\n\n || put_user_u32(egid, arg2)\n\n || put_user_u32(sgid, arg3))\n\n goto efault;\n\n }\n\n }\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_chown32\n\n case TARGET_NR_chown32:\n\n if (!(p = lock_user_string(arg1)))\n\n goto efault;\n\n ret = get_errno(chown(p, arg2, arg3));\n\n unlock_user(p, arg1, 0);\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_setuid32\n\n case TARGET_NR_setuid32:\n\n ret = get_errno(setuid(arg1));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_setgid32\n\n case TARGET_NR_setgid32:\n\n ret = get_errno(setgid(arg1));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_setfsuid32\n\n case TARGET_NR_setfsuid32:\n\n ret = get_errno(setfsuid(arg1));\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_setfsgid32\n\n case TARGET_NR_setfsgid32:\n\n ret = get_errno(setfsgid(arg1));\n\n break;\n\n#endif\n\n\n\n case TARGET_NR_pivot_root:\n\n goto unimplemented;\n\n#ifdef TARGET_NR_mincore\n\n case TARGET_NR_mincore:\n\n {\n\n void *a;\n\n ret = -TARGET_EFAULT;\n\n if (!(a = lock_user(VERIFY_READ, arg1,arg2, 0)))\n\n goto efault;\n\n if (!(p = lock_user_string(arg3)))\n\n goto mincore_fail;\n\n ret = get_errno(mincore(a, arg2, p));\n\n unlock_user(p, arg3, ret);\n\n mincore_fail:\n\n unlock_user(a, arg1, 0);\n\n }\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_arm_fadvise64_64\n\n case TARGET_NR_arm_fadvise64_64:\n\n\t{\n\n\t\t/*\n\n\t\t * arm_fadvise64_64 looks like fadvise64_64 but\n\n\t\t * with different argument order\n\n\t\t */\n\n\t\tabi_long temp;\n\n\t\ttemp = arg3;\n\n\t\targ3 = arg4;\n\n\t\targ4 = temp;\n\n\t}\n\n#endif\n\n#if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_arm_fadvise64_64) || defined(TARGET_NR_fadvise64)\n\n#ifdef TARGET_NR_fadvise64_64\n\n case TARGET_NR_fadvise64_64:\n\n#endif\n\n#ifdef TARGET_NR_fadvise64\n\n case TARGET_NR_fadvise64:\n\n#endif\n\n#ifdef TARGET_S390X\n\n switch (arg4) {\n\n case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */\n\n case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */\n\n case 6: arg4 = POSIX_FADV_DONTNEED; break;\n\n case 7: arg4 = POSIX_FADV_NOREUSE; break;\n\n default: break;\n\n }\n\n#endif\n\n ret = -posix_fadvise(arg1, arg2, arg3, arg4);\n\n\tbreak;\n\n#endif\n\n#ifdef TARGET_NR_madvise\n\n case TARGET_NR_madvise:\n\n /* A straight passthrough may not be safe because qemu sometimes\n\n turns private flie-backed mappings into anonymous mappings.\n\n This will break MADV_DONTNEED.\n\n This is a hint, so ignoring and returning success is ok. */\n\n ret = get_errno(0);\n\n break;\n\n#endif\n\n#if TARGET_ABI_BITS == 32\n\n case TARGET_NR_fcntl64:\n\n {\n\n\tint cmd;\n\n\tstruct flock64 fl;\n\n\tstruct target_flock64 *target_fl;\n\n#ifdef TARGET_ARM\n\n\tstruct target_eabi_flock64 *target_efl;\n\n#endif\n\n\n\n\tcmd = target_to_host_fcntl_cmd(arg2);\n\n if (cmd == -TARGET_EINVAL) {\n\n ret = cmd;\n\n break;\n\n }\n\n\n\n switch(arg2) {\n\n case TARGET_F_GETLK64:\n\n#ifdef TARGET_ARM\n\n if (((CPUARMState *)cpu_env)->eabi) {\n\n if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1)) \n\n goto efault;\n\n fl.l_type = tswap16(target_efl->l_type);\n\n fl.l_whence = tswap16(target_efl->l_whence);\n\n fl.l_start = tswap64(target_efl->l_start);\n\n fl.l_len = tswap64(target_efl->l_len);\n\n fl.l_pid = tswap32(target_efl->l_pid);\n\n unlock_user_struct(target_efl, arg3, 0);\n\n } else\n\n#endif\n\n {\n\n if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1)) \n\n goto efault;\n\n fl.l_type = tswap16(target_fl->l_type);\n\n fl.l_whence = tswap16(target_fl->l_whence);\n\n fl.l_start = tswap64(target_fl->l_start);\n\n fl.l_len = tswap64(target_fl->l_len);\n\n fl.l_pid = tswap32(target_fl->l_pid);\n\n unlock_user_struct(target_fl, arg3, 0);\n\n }\n\n ret = get_errno(fcntl(arg1, cmd, &fl));\n\n\t if (ret == 0) {\n\n#ifdef TARGET_ARM\n\n if (((CPUARMState *)cpu_env)->eabi) {\n\n if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0)) \n\n goto efault;\n\n target_efl->l_type = tswap16(fl.l_type);\n\n target_efl->l_whence = tswap16(fl.l_whence);\n\n target_efl->l_start = tswap64(fl.l_start);\n\n target_efl->l_len = tswap64(fl.l_len);\n\n target_efl->l_pid = tswap32(fl.l_pid);\n\n unlock_user_struct(target_efl, arg3, 1);\n\n } else\n\n#endif\n\n {\n\n if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0)) \n\n goto efault;\n\n target_fl->l_type = tswap16(fl.l_type);\n\n target_fl->l_whence = tswap16(fl.l_whence);\n\n target_fl->l_start = tswap64(fl.l_start);\n\n target_fl->l_len = tswap64(fl.l_len);\n\n target_fl->l_pid = tswap32(fl.l_pid);\n\n unlock_user_struct(target_fl, arg3, 1);\n\n }\n\n\t }\n\n\t break;\n\n\n\n case TARGET_F_SETLK64:\n\n case TARGET_F_SETLKW64:\n\n#ifdef TARGET_ARM\n\n if (((CPUARMState *)cpu_env)->eabi) {\n\n if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1)) \n\n goto efault;\n\n fl.l_type = tswap16(target_efl->l_type);\n\n fl.l_whence = tswap16(target_efl->l_whence);\n\n fl.l_start = tswap64(target_efl->l_start);\n\n fl.l_len = tswap64(target_efl->l_len);\n\n fl.l_pid = tswap32(target_efl->l_pid);\n\n unlock_user_struct(target_efl, arg3, 0);\n\n } else\n\n#endif\n\n {\n\n if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1)) \n\n goto efault;\n\n fl.l_type = tswap16(target_fl->l_type);\n\n fl.l_whence = tswap16(target_fl->l_whence);\n\n fl.l_start = tswap64(target_fl->l_start);\n\n fl.l_len = tswap64(target_fl->l_len);\n\n fl.l_pid = tswap32(target_fl->l_pid);\n\n unlock_user_struct(target_fl, arg3, 0);\n\n }\n\n ret = get_errno(fcntl(arg1, cmd, &fl));\n\n\t break;\n\n default:\n\n ret = do_fcntl(arg1, arg2, arg3);\n\n break;\n\n }\n\n\tbreak;\n\n }\n\n#endif\n\n#ifdef TARGET_NR_cacheflush\n\n case TARGET_NR_cacheflush:\n\n /* self-modifying code is handled automatically, so nothing needed */\n\n ret = 0;\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_security\n\n case TARGET_NR_security:\n\n goto unimplemented;\n\n#endif\n\n#ifdef TARGET_NR_getpagesize\n\n case TARGET_NR_getpagesize:\n\n ret = TARGET_PAGE_SIZE;\n\n break;\n\n#endif\n\n case TARGET_NR_gettid:\n\n ret = get_errno(gettid());\n\n break;\n\n#ifdef TARGET_NR_readahead\n\n case TARGET_NR_readahead:\n\n#if TARGET_ABI_BITS == 32\n\n if (regpairs_aligned(cpu_env)) {\n\n arg2 = arg3;\n\n arg3 = arg4;\n\n arg4 = arg5;\n\n }\n\n ret = get_errno(readahead(arg1, ((off64_t)arg3 << 32) | arg2, arg4));\n\n#else\n\n ret = get_errno(readahead(arg1, arg2, arg3));\n\n#endif\n\n break;\n\n#endif\n\n#ifdef CONFIG_ATTR\n\n#ifdef TARGET_NR_setxattr\n\n case TARGET_NR_listxattr:\n\n case TARGET_NR_llistxattr:\n\n {\n\n void *p, *b = 0;\n\n if (arg2) {\n\n b = lock_user(VERIFY_WRITE, arg2, arg3, 0);\n\n if (!b) {\n\n ret = -TARGET_EFAULT;\n\n break;\n\n }\n\n }\n\n p = lock_user_string(arg1);\n\n if (p) {\n\n if (num == TARGET_NR_listxattr) {\n\n ret = get_errno(listxattr(p, b, arg3));\n\n } else {\n\n ret = get_errno(llistxattr(p, b, arg3));\n\n }\n\n } else {\n\n ret = -TARGET_EFAULT;\n\n }\n\n unlock_user(p, arg1, 0);\n\n unlock_user(b, arg2, arg3);\n\n break;\n\n }\n\n case TARGET_NR_flistxattr:\n\n {\n\n void *b = 0;\n\n if (arg2) {\n\n b = lock_user(VERIFY_WRITE, arg2, arg3, 0);\n\n if (!b) {\n\n ret = -TARGET_EFAULT;\n\n break;\n\n }\n\n }\n\n ret = get_errno(flistxattr(arg1, b, arg3));\n\n unlock_user(b, arg2, arg3);\n\n break;\n\n }\n\n case TARGET_NR_setxattr:\n\n case TARGET_NR_lsetxattr:\n\n {\n\n void *p, *n, *v = 0;\n\n if (arg3) {\n\n v = lock_user(VERIFY_READ, arg3, arg4, 1);\n\n if (!v) {\n\n ret = -TARGET_EFAULT;\n\n break;\n\n }\n\n }\n\n p = lock_user_string(arg1);\n\n n = lock_user_string(arg2);\n\n if (p && n) {\n\n if (num == TARGET_NR_setxattr) {\n\n ret = get_errno(setxattr(p, n, v, arg4, arg5));\n\n } else {\n\n ret = get_errno(lsetxattr(p, n, v, arg4, arg5));\n\n }\n\n } else {\n\n ret = -TARGET_EFAULT;\n\n }\n\n unlock_user(p, arg1, 0);\n\n unlock_user(n, arg2, 0);\n\n unlock_user(v, arg3, 0);\n\n }\n\n break;\n\n case TARGET_NR_fsetxattr:\n\n {\n\n void *n, *v = 0;\n\n if (arg3) {\n\n v = lock_user(VERIFY_READ, arg3, arg4, 1);\n\n if (!v) {\n\n ret = -TARGET_EFAULT;\n\n break;\n\n }\n\n }\n\n n = lock_user_string(arg2);\n\n if (n) {\n\n ret = get_errno(fsetxattr(arg1, n, v, arg4, arg5));\n\n } else {\n\n ret = -TARGET_EFAULT;\n\n }\n\n unlock_user(n, arg2, 0);\n\n unlock_user(v, arg3, 0);\n\n }\n\n break;\n\n case TARGET_NR_getxattr:\n\n case TARGET_NR_lgetxattr:\n\n {\n\n void *p, *n, *v = 0;\n\n if (arg3) {\n\n v = lock_user(VERIFY_WRITE, arg3, arg4, 0);\n\n if (!v) {\n\n ret = -TARGET_EFAULT;\n\n break;\n\n }\n\n }\n\n p = lock_user_string(arg1);\n\n n = lock_user_string(arg2);\n\n if (p && n) {\n\n if (num == TARGET_NR_getxattr) {\n\n ret = get_errno(getxattr(p, n, v, arg4));\n\n } else {\n\n ret = get_errno(lgetxattr(p, n, v, arg4));\n\n }\n\n } else {\n\n ret = -TARGET_EFAULT;\n\n }\n\n unlock_user(p, arg1, 0);\n\n unlock_user(n, arg2, 0);\n\n unlock_user(v, arg3, arg4);\n\n }\n\n break;\n\n case TARGET_NR_fgetxattr:\n\n {\n\n void *n, *v = 0;\n\n if (arg3) {\n\n v = lock_user(VERIFY_WRITE, arg3, arg4, 0);\n\n if (!v) {\n\n ret = -TARGET_EFAULT;\n\n break;\n\n }\n\n }\n\n n = lock_user_string(arg2);\n\n if (n) {\n\n ret = get_errno(fgetxattr(arg1, n, v, arg4));\n\n } else {\n\n ret = -TARGET_EFAULT;\n\n }\n\n unlock_user(n, arg2, 0);\n\n unlock_user(v, arg3, arg4);\n\n }\n\n break;\n\n case TARGET_NR_removexattr:\n\n case TARGET_NR_lremovexattr:\n\n {\n\n void *p, *n;\n\n p = lock_user_string(arg1);\n\n n = lock_user_string(arg2);\n\n if (p && n) {\n\n if (num == TARGET_NR_removexattr) {\n\n ret = get_errno(removexattr(p, n));\n\n } else {\n\n ret = get_errno(lremovexattr(p, n));\n\n }\n\n } else {\n\n ret = -TARGET_EFAULT;\n\n }\n\n unlock_user(p, arg1, 0);\n\n unlock_user(n, arg2, 0);\n\n }\n\n break;\n\n case TARGET_NR_fremovexattr:\n\n {\n\n void *n;\n\n n = lock_user_string(arg2);\n\n if (n) {\n\n ret = get_errno(fremovexattr(arg1, n));\n\n } else {\n\n ret = -TARGET_EFAULT;\n\n }\n\n unlock_user(n, arg2, 0);\n\n }\n\n break;\n\n#endif\n\n#endif /* CONFIG_ATTR */\n\n#ifdef TARGET_NR_set_thread_area\n\n case TARGET_NR_set_thread_area:\n\n#if defined(TARGET_MIPS)\n\n ((CPUMIPSState *) cpu_env)->tls_value = arg1;\n\n ret = 0;\n\n break;\n\n#elif defined(TARGET_CRIS)\n\n if (arg1 & 0xff)\n\n ret = -TARGET_EINVAL;\n\n else {\n\n ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1;\n\n ret = 0;\n\n }\n\n break;\n\n#elif defined(TARGET_I386) && defined(TARGET_ABI32)\n\n ret = do_set_thread_area(cpu_env, arg1);\n\n break;\n\n#else\n\n goto unimplemented_nowarn;\n\n#endif\n\n#endif\n\n#ifdef TARGET_NR_get_thread_area\n\n case TARGET_NR_get_thread_area:\n\n#if defined(TARGET_I386) && defined(TARGET_ABI32)\n\n ret = do_get_thread_area(cpu_env, arg1);\n\n#else\n\n goto unimplemented_nowarn;\n\n#endif\n\n#endif\n\n#ifdef TARGET_NR_getdomainname\n\n case TARGET_NR_getdomainname:\n\n goto unimplemented_nowarn;\n\n#endif\n\n\n\n#ifdef TARGET_NR_clock_gettime\n\n case TARGET_NR_clock_gettime:\n\n {\n\n struct timespec ts;\n\n ret = get_errno(clock_gettime(arg1, &ts));\n\n if (!is_error(ret)) {\n\n host_to_target_timespec(arg2, &ts);\n\n }\n\n break;\n\n }\n\n#endif\n\n#ifdef TARGET_NR_clock_getres\n\n case TARGET_NR_clock_getres:\n\n {\n\n struct timespec ts;\n\n ret = get_errno(clock_getres(arg1, &ts));\n\n if (!is_error(ret)) {\n\n host_to_target_timespec(arg2, &ts);\n\n }\n\n break;\n\n }\n\n#endif\n\n#ifdef TARGET_NR_clock_nanosleep\n\n case TARGET_NR_clock_nanosleep:\n\n {\n\n struct timespec ts;\n\n target_to_host_timespec(&ts, arg3);\n\n ret = get_errno(clock_nanosleep(arg1, arg2, &ts, arg4 ? &ts : NULL));\n\n if (arg4)\n\n host_to_target_timespec(arg4, &ts);\n\n break;\n\n }\n\n#endif\n\n\n\n#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)\n\n case TARGET_NR_set_tid_address:\n\n ret = get_errno(set_tid_address((int *)g2h(arg1)));\n\n break;\n\n#endif\n\n\n\n#if defined(TARGET_NR_tkill) && defined(__NR_tkill)\n\n case TARGET_NR_tkill:\n\n ret = get_errno(sys_tkill((int)arg1, target_to_host_signal(arg2)));\n\n break;\n\n#endif\n\n\n\n#if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)\n\n case TARGET_NR_tgkill:\n\n\tret = get_errno(sys_tgkill((int)arg1, (int)arg2,\n\n target_to_host_signal(arg3)));\n\n\tbreak;\n\n#endif\n\n\n\n#ifdef TARGET_NR_set_robust_list\n\n case TARGET_NR_set_robust_list:\n\n\tgoto unimplemented_nowarn;\n\n#endif\n\n\n\n#if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)\n\n case TARGET_NR_utimensat:\n\n {\n\n struct timespec *tsp, ts[2];\n\n if (!arg3) {\n\n tsp = NULL;\n\n } else {\n\n target_to_host_timespec(ts, arg3);\n\n target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));\n\n tsp = ts;\n\n }\n\n if (!arg2)\n\n ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));\n\n else {\n\n if (!(p = lock_user_string(arg2))) {\n\n ret = -TARGET_EFAULT;\n\n goto fail;\n\n }\n\n ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));\n\n unlock_user(p, arg2, 0);\n\n }\n\n }\n\n\tbreak;\n\n#endif\n\n#if defined(CONFIG_USE_NPTL)\n\n case TARGET_NR_futex:\n\n ret = do_futex(arg1, arg2, arg3, arg4, arg5, arg6);\n\n break;\n\n#endif\n\n#if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)\n\n case TARGET_NR_inotify_init:\n\n ret = get_errno(sys_inotify_init());\n\n break;\n\n#endif\n\n#ifdef CONFIG_INOTIFY1\n\n#if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)\n\n case TARGET_NR_inotify_init1:\n\n ret = get_errno(sys_inotify_init1(arg1));\n\n break;\n\n#endif\n\n#endif\n\n#if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)\n\n case TARGET_NR_inotify_add_watch:\n\n p = lock_user_string(arg2);\n\n ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3));\n\n unlock_user(p, arg2, 0);\n\n break;\n\n#endif\n\n#if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)\n\n case TARGET_NR_inotify_rm_watch:\n\n ret = get_errno(sys_inotify_rm_watch(arg1, arg2));\n\n break;\n\n#endif\n\n\n\n#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)\n\n case TARGET_NR_mq_open:\n\n {\n\n struct mq_attr posix_mq_attr;\n\n\n\n p = lock_user_string(arg1 - 1);\n\n if (arg4 != 0)\n\n copy_from_user_mq_attr (&posix_mq_attr, arg4);\n\n ret = get_errno(mq_open(p, arg2, arg3, &posix_mq_attr));\n\n unlock_user (p, arg1, 0);\n\n }\n\n break;\n\n\n\n case TARGET_NR_mq_unlink:\n\n p = lock_user_string(arg1 - 1);\n\n ret = get_errno(mq_unlink(p));\n\n unlock_user (p, arg1, 0);\n\n break;\n\n\n\n case TARGET_NR_mq_timedsend:\n\n {\n\n struct timespec ts;\n\n\n\n p = lock_user (VERIFY_READ, arg2, arg3, 1);\n\n if (arg5 != 0) {\n\n target_to_host_timespec(&ts, arg5);\n\n ret = get_errno(mq_timedsend(arg1, p, arg3, arg4, &ts));\n\n host_to_target_timespec(arg5, &ts);\n\n }\n\n else\n\n ret = get_errno(mq_send(arg1, p, arg3, arg4));\n\n unlock_user (p, arg2, arg3);\n\n }\n\n break;\n\n\n\n case TARGET_NR_mq_timedreceive:\n\n {\n\n struct timespec ts;\n\n unsigned int prio;\n\n\n\n p = lock_user (VERIFY_READ, arg2, arg3, 1);\n\n if (arg5 != 0) {\n\n target_to_host_timespec(&ts, arg5);\n\n ret = get_errno(mq_timedreceive(arg1, p, arg3, &prio, &ts));\n\n host_to_target_timespec(arg5, &ts);\n\n }\n\n else\n\n ret = get_errno(mq_receive(arg1, p, arg3, &prio));\n\n unlock_user (p, arg2, arg3);\n\n if (arg4 != 0)\n\n put_user_u32(prio, arg4);\n\n }\n\n break;\n\n\n\n /* Not implemented for now... */\n\n/* case TARGET_NR_mq_notify: */\n\n/* break; */\n\n\n\n case TARGET_NR_mq_getsetattr:\n\n {\n\n struct mq_attr posix_mq_attr_in, posix_mq_attr_out;\n\n ret = 0;\n\n if (arg3 != 0) {\n\n ret = mq_getattr(arg1, &posix_mq_attr_out);\n\n copy_to_user_mq_attr(arg3, &posix_mq_attr_out);\n\n }\n\n if (arg2 != 0) {\n\n copy_from_user_mq_attr(&posix_mq_attr_in, arg2);\n\n ret |= mq_setattr(arg1, &posix_mq_attr_in, &posix_mq_attr_out);\n\n }\n\n\n\n }\n\n break;\n\n#endif\n\n\n\n#ifdef CONFIG_SPLICE\n\n#ifdef TARGET_NR_tee\n\n case TARGET_NR_tee:\n\n {\n\n ret = get_errno(tee(arg1,arg2,arg3,arg4));\n\n }\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_splice\n\n case TARGET_NR_splice:\n\n {\n\n loff_t loff_in, loff_out;\n\n loff_t *ploff_in = NULL, *ploff_out = NULL;\n\n if(arg2) {\n\n get_user_u64(loff_in, arg2);\n\n ploff_in = &loff_in;\n\n }\n\n if(arg4) {\n\n get_user_u64(loff_out, arg2);\n\n ploff_out = &loff_out;\n\n }\n\n ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6));\n\n }\n\n break;\n\n#endif\n\n#ifdef TARGET_NR_vmsplice\n\n\tcase TARGET_NR_vmsplice:\n\n {\n\n int count = arg3;\n\n struct iovec *vec;\n\n\n\n vec = alloca(count * sizeof(struct iovec));\n\n if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0)\n\n goto efault;\n\n ret = get_errno(vmsplice(arg1, vec, count, arg4));\n\n unlock_iovec(vec, arg2, count, 0);\n\n }\n\n break;\n\n#endif\n\n#endif /* CONFIG_SPLICE */\n\n#ifdef CONFIG_EVENTFD\n\n#if defined(TARGET_NR_eventfd)\n\n case TARGET_NR_eventfd:\n\n ret = get_errno(eventfd(arg1, 0));\n\n break;\n\n#endif\n\n#if defined(TARGET_NR_eventfd2)\n\n case TARGET_NR_eventfd2:\n\n ret = get_errno(eventfd(arg1, arg2));\n\n break;\n\n#endif\n\n#endif /* CONFIG_EVENTFD */\n\n#if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate)\n\n case TARGET_NR_fallocate:\n\n#if TARGET_ABI_BITS == 32\n\n ret = get_errno(fallocate(arg1, arg2, target_offset64(arg3, arg4),\n\n target_offset64(arg5, arg6)));\n\n#else\n\n ret = get_errno(fallocate(arg1, arg2, arg3, arg4));\n\n#endif\n\n break;\n\n#endif\n\n#if defined(CONFIG_SYNC_FILE_RANGE)\n\n#if defined(TARGET_NR_sync_file_range)\n\n case TARGET_NR_sync_file_range:\n\n#if TARGET_ABI_BITS == 32\n\n#if defined(TARGET_MIPS)\n\n ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),\n\n target_offset64(arg5, arg6), arg7));\n\n#else\n\n ret = get_errno(sync_file_range(arg1, target_offset64(arg2, arg3),\n\n target_offset64(arg4, arg5), arg6));\n\n#endif /* !TARGET_MIPS */\n\n#else\n\n ret = get_errno(sync_file_range(arg1, arg2, arg3, arg4));\n\n#endif\n\n break;\n\n#endif\n\n#if defined(TARGET_NR_sync_file_range2)\n\n case TARGET_NR_sync_file_range2:\n\n /* This is like sync_file_range but the arguments are reordered */\n\n#if TARGET_ABI_BITS == 32\n\n ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),\n\n target_offset64(arg5, arg6), arg2));\n\n#else\n\n ret = get_errno(sync_file_range(arg1, arg3, arg4, arg2));\n\n#endif\n\n break;\n\n#endif\n\n#endif\n\n#if defined(CONFIG_EPOLL)\n\n#if defined(TARGET_NR_epoll_create)\n\n case TARGET_NR_epoll_create:\n\n ret = get_errno(epoll_create(arg1));\n\n break;\n\n#endif\n\n#if defined(TARGET_NR_epoll_create1) && defined(CONFIG_EPOLL_CREATE1)\n\n case TARGET_NR_epoll_create1:\n\n ret = get_errno(epoll_create1(arg1));\n\n break;\n\n#endif\n\n#if defined(TARGET_NR_epoll_ctl)\n\n case TARGET_NR_epoll_ctl:\n\n {\n\n struct epoll_event ep;\n\n struct epoll_event *epp = 0;\n\n if (arg4) {\n\n struct target_epoll_event *target_ep;\n\n if (!lock_user_struct(VERIFY_READ, target_ep, arg4, 1)) {\n\n goto efault;\n\n }\n\n ep.events = tswap32(target_ep->events);\n\n /* The epoll_data_t union is just opaque data to the kernel,\n\n * so we transfer all 64 bits across and need not worry what\n\n * actual data type it is.\n\n */\n\n ep.data.u64 = tswap64(target_ep->data.u64);\n\n unlock_user_struct(target_ep, arg4, 0);\n\n epp = &ep;\n\n }\n\n ret = get_errno(epoll_ctl(arg1, arg2, arg3, epp));\n\n break;\n\n }\n\n#endif\n\n\n\n#if defined(TARGET_NR_epoll_pwait) && defined(CONFIG_EPOLL_PWAIT)\n\n#define IMPLEMENT_EPOLL_PWAIT\n\n#endif\n\n#if defined(TARGET_NR_epoll_wait) || defined(IMPLEMENT_EPOLL_PWAIT)\n\n#if defined(TARGET_NR_epoll_wait)\n\n case TARGET_NR_epoll_wait:\n\n#endif\n\n#if defined(IMPLEMENT_EPOLL_PWAIT)\n\n case TARGET_NR_epoll_pwait:\n\n#endif\n\n {\n\n struct target_epoll_event *target_ep;\n\n struct epoll_event *ep;\n\n int epfd = arg1;\n\n int maxevents = arg3;\n\n int timeout = arg4;\n\n\n\n target_ep = lock_user(VERIFY_WRITE, arg2,\n\n maxevents * sizeof(struct target_epoll_event), 1);\n\n if (!target_ep) {\n\n goto efault;\n\n }\n\n\n\n ep = alloca(maxevents * sizeof(struct epoll_event));\n\n\n\n switch (num) {\n\n#if defined(IMPLEMENT_EPOLL_PWAIT)\n\n case TARGET_NR_epoll_pwait:\n\n {\n\n target_sigset_t *target_set;\n\n sigset_t _set, *set = &_set;\n\n\n\n if (arg5) {\n\n target_set = lock_user(VERIFY_READ, arg5,\n\n sizeof(target_sigset_t), 1);\n\n if (!target_set) {\n\n unlock_user(target_ep, arg2, 0);\n\n goto efault;\n\n }\n\n target_to_host_sigset(set, target_set);\n\n unlock_user(target_set, arg5, 0);\n\n } else {\n\n set = NULL;\n\n }\n\n\n\n ret = get_errno(epoll_pwait(epfd, ep, maxevents, timeout, set));\n\n break;\n\n }\n\n#endif\n\n#if defined(TARGET_NR_epoll_wait)\n\n case TARGET_NR_epoll_wait:\n\n ret = get_errno(epoll_wait(epfd, ep, maxevents, timeout));\n\n break;\n\n#endif\n\n default:\n\n ret = -TARGET_ENOSYS;\n\n }\n\n if (!is_error(ret)) {\n\n int i;\n\n for (i = 0; i < ret; i++) {\n\n target_ep[i].events = tswap32(ep[i].events);\n\n target_ep[i].data.u64 = tswap64(ep[i].data.u64);\n\n }\n\n }\n\n unlock_user(target_ep, arg2, ret * sizeof(struct target_epoll_event));\n\n break;\n\n }\n\n#endif\n\n#endif\n\n#ifdef TARGET_NR_prlimit64\n\n case TARGET_NR_prlimit64:\n\n {\n\n /* args: pid, resource number, ptr to new rlimit, ptr to old rlimit */\n\n struct target_rlimit64 *target_rnew, *target_rold;\n\n struct host_rlimit64 rnew, rold, *rnewp = 0;\n\n if (arg3) {\n\n if (!lock_user_struct(VERIFY_READ, target_rnew, arg3, 1)) {\n\n goto efault;\n\n }\n\n rnew.rlim_cur = tswap64(target_rnew->rlim_cur);\n\n rnew.rlim_max = tswap64(target_rnew->rlim_max);\n\n unlock_user_struct(target_rnew, arg3, 0);\n\n rnewp = &rnew;\n\n }\n\n\n\n ret = get_errno(sys_prlimit64(arg1, arg2, rnewp, arg4 ? &rold : 0));\n\n if (!is_error(ret) && arg4) {\n\n if (!lock_user_struct(VERIFY_WRITE, target_rold, arg4, 1)) {\n\n goto efault;\n\n }\n\n target_rold->rlim_cur = tswap64(rold.rlim_cur);\n\n target_rold->rlim_max = tswap64(rold.rlim_max);\n\n unlock_user_struct(target_rold, arg4, 1);\n\n }\n\n break;\n\n }\n\n#endif\n\n default:\n\n unimplemented:\n\n gemu_log(\"qemu: Unsupported syscall: %d\\n\", num);\n\n#if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list)\n\n unimplemented_nowarn:\n\n#endif\n\n ret = -TARGET_ENOSYS;\n\n break;\n\n }\n\nfail:\n\n#ifdef DEBUG\n\n gemu_log(\" = \" TARGET_ABI_FMT_ld \"\\n\", ret);\n\n#endif\n\n if(do_strace)\n\n print_syscall_ret(num, ret);\n\n return ret;\n\nefault:\n\n ret = -TARGET_EFAULT;\n\n goto fail;\n\n}\n", + "output": "0", + "index": 22174 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static void mips_jazz_init(MachineState *machine,\n\n enum jazz_model_e jazz_model)\n\n{\n\n MemoryRegion *address_space = get_system_memory();\n\n const char *cpu_model = machine->cpu_model;\n\n char *filename;\n\n int bios_size, n;\n\n MIPSCPU *cpu;\n\n CPUClass *cc;\n\n CPUMIPSState *env;\n\n qemu_irq *i8259;\n\n rc4030_dma *dmas;\n\n MemoryRegion *rc4030_dma_mr;\n\n MemoryRegion *isa_mem = g_new(MemoryRegion, 1);\n\n MemoryRegion *isa_io = g_new(MemoryRegion, 1);\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, *rc4030;\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 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 cpu_model = \"R4000\";\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 /* Chipset returns 0 in invalid reads and do not raise data exceptions.\n\n * However, we can't simply add a global memory region to catch\n\n * everything, as memory core directly call unassigned_mem_read/write\n\n * on some invalid accesses, which call do_unassigned_access on the\n\n * CPU, which raise an exception.\n\n * Handle that case by hijacking the do_unassigned_access method on\n\n * the CPU, and do not raise exceptions for data access. */\n\n cc = CPU_GET_CLASS(cpu);\n\n real_do_unassigned_access = cc->do_unassigned_access;\n\n cc->do_unassigned_access = mips_jazz_do_unassigned_access;\n\n\n\n /* allocate RAM */\n\n memory_region_allocate_system_memory(ram, NULL, \"mips_jazz.ram\",\n\n machine->ram_size);\n\n memory_region_add_subregion(address_space, 0, ram);\n\n\n\n memory_region_init_ram(bios, NULL, \"mips_jazz.bios\", MAGNUM_BIOS_SIZE,\n\n &error_abort);\n\n vmstate_register_ram_global(bios);\n\n memory_region_set_readonly(bios, true);\n\n memory_region_init_alias(bios2, NULL, \"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) && !qtest_enabled()) {\n\n error_report(\"Could not load MIPS bios '%s'\", 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 = rc4030_init(&dmas, &rc4030_dma_mr);\n\n sysbus = SYS_BUS_DEVICE(rc4030);\n\n sysbus_connect_irq(sysbus, 0, env->irq[6]);\n\n sysbus_connect_irq(sysbus, 1, env->irq[3]);\n\n memory_region_add_subregion(address_space, 0x80000000,\n\n sysbus_mmio_get_region(sysbus, 0));\n\n memory_region_add_subregion(address_space, 0xf0000000,\n\n sysbus_mmio_get_region(sysbus, 1));\n\n memory_region_init_io(dma_dummy, NULL, &dma_dummy_ops, NULL, \"dummy_dma\", 0x1000);\n\n memory_region_add_subregion(address_space, 0x8000d000, dma_dummy);\n\n\n\n /* ISA bus: IO space at 0x90000000, mem space at 0x91000000 */\n\n memory_region_init(isa_io, NULL, \"isa-io\", 0x00010000);\n\n memory_region_init(isa_mem, NULL, \"isa-mem\", 0x01000000);\n\n memory_region_add_subregion(address_space, 0x90000000, isa_io);\n\n memory_region_add_subregion(address_space, 0x91000000, isa_mem);\n\n isa_bus = isa_bus_new(NULL, isa_mem, isa_io);\n\n\n\n /* ISA devices */\n\n i8259 = i8259_init(isa_bus, env->irq[4]);\n\n isa_bus_irqs(isa_bus, i8259);\n\n DMA_init(0);\n\n pit = pit_init(isa_bus, 0x40, 0, NULL);\n\n pcspk_init(isa_bus, pit);\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 = SYS_BUS_DEVICE(dev);\n\n sysbus_mmio_map(sysbus, 0, 0x60080000);\n\n sysbus_mmio_map(sysbus, 1, 0x40000000);\n\n sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in(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, NULL, \"g364fb.rom\", 0x80000,\n\n &error_abort);\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 qemu_check_nic_model(nd, \"dp83932\");\n\n\n\n dev = qdev_create(NULL, \"dp8393x\");\n\n qdev_set_nic_properties(dev, nd);\n\n qdev_prop_set_uint8(dev, \"it_shift\", 2);\n\n qdev_prop_set_ptr(dev, \"dma_mr\", rc4030_dma_mr);\n\n qdev_init_nofail(dev);\n\n sysbus = SYS_BUS_DEVICE(dev);\n\n sysbus_mmio_map(sysbus, 0, 0x80001000);\n\n sysbus_mmio_map(sysbus, 1, 0x8000b000);\n\n sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in(rc4030, 4));\n\n break;\n\n } else if (is_help_option(nd->model)) {\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 qdev_get_gpio_in(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(qdev_get_gpio_in(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, NULL, &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(qdev_get_gpio_in(rc4030, 6), qdev_get_gpio_in(rc4030, 7),\n\n 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,\n\n qdev_get_gpio_in(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,\n\n qdev_get_gpio_in(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,\n\n qdev_get_gpio_in(rc4030, 0), parallel_hds[0]);\n\n\n\n /* FIXME: missing Jazz sound at 0x8000c000, rc4030[2] */\n\n\n\n /* NVRAM */\n\n dev = qdev_create(NULL, \"ds1225y\");\n\n qdev_init_nofail(dev);\n\n sysbus = SYS_BUS_DEVICE(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": 8584 + }, + { + "instruction": "Detect whether the following code contains vulnerabilities.", + "input": "static int mpeg_decode_slice(AVCodecContext *avctx, \n\n AVFrame *pict,\n\n int start_code,\n\n UINT8 *buf, int buf_size)\n\n{\n\n Mpeg1Context *s1 = avctx->priv_data;\n\n MpegEncContext *s = &s1->mpeg_enc_ctx;\n\n int ret;\n\n\n\n start_code = (start_code - 1) & 0xff;\n\n if (start_code >= s->mb_height){\n\n fprintf(stderr, \"slice below image (%d >= %d)\\n\", start_code, s->mb_height);\n\n return DECODE_SLICE_ERROR;\n\n }\n\n s->last_dc[0] = 1 << (7 + s->intra_dc_precision);\n\n s->last_dc[1] = s->last_dc[0];\n\n s->last_dc[2] = s->last_dc[0];\n\n memset(s->last_mv, 0, sizeof(s->last_mv));\n\n /* start frame decoding */\n\n if (s->first_slice) {\n\n s->first_slice = 0;\n\n if(MPV_frame_start(s, avctx) < 0)\n\n return DECODE_SLICE_FATAL_ERROR;\n\n \n\n if(s->avctx->debug&FF_DEBUG_PICT_INFO){\n\n printf(\"qp:%d fc:%2d%2d%2d%2d %s %s %s %s dc:%d pstruct:%d fdct:%d cmv:%d qtype:%d ivlc:%d rff:%d %s\\n\", \n\n s->qscale, s->mpeg_f_code[0][0],s->mpeg_f_code[0][1],s->mpeg_f_code[1][0],s->mpeg_f_code[1][1],\n\n s->pict_type == I_TYPE ? \"I\" : (s->pict_type == P_TYPE ? \"P\" : (s->pict_type == B_TYPE ? \"B\" : \"S\")), \n\n s->progressive_sequence ? \"pro\" :\"\", s->alternate_scan ? \"alt\" :\"\", s->top_field_first ? \"top\" :\"\", \n\n s->intra_dc_precision, s->picture_structure, s->frame_pred_frame_dct, s->concealment_motion_vectors,\n\n s->q_scale_type, s->intra_vlc_format, s->repeat_first_field, s->chroma_420_type ? \"420\" :\"\");\n\n }\n\n }\n\n\n\n init_get_bits(&s->gb, buf, buf_size);\n\n\n\n s->qscale = get_qscale(s);\n\n /* extra slice info */\n\n while (get_bits1(&s->gb) != 0) {\n\n skip_bits(&s->gb, 8);\n\n }\n\n\n\n s->mb_x=0;\n\n for(;;) {\n\n int code = get_vlc2(&s->gb, mbincr_vlc.table, MBINCR_VLC_BITS, 2);\n\n if (code < 0)\n\n return -1; /* error = end of slice, but empty slice is bad or?*/\n\n if (code >= 33) {\n\n if (code == 33) {\n\n s->mb_x += 33;\n\n }\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 s->mb_y = start_code;\n\n s->mb_incr= 1;\n\n\n\n for(;;) {\n\n\ts->dsp.clear_blocks(s->block[0]);\n\n \n\n ret = mpeg_decode_mb(s, s->block);\n\n dprintf(\"ret=%d\\n\", ret);\n\n if (ret < 0)\n\n return -1;\n\n \n\n MPV_decode_mb(s, s->block);\n\n\n\n if (++s->mb_x >= s->mb_width) {\n\n ff_draw_horiz_band(s);\n\n\n\n s->mb_x = 0;\n\n s->mb_y++;\n\n PRINT_QP(\"%s\", \"\\n\");\n\n }\n\n PRINT_QP(\"%2d\", s->qscale);\n\n\n\n /* skip mb handling */\n\n if (s->mb_incr == 0) {\n\n /* read again increment */\n\n s->mb_incr = 1;\n\n for(;;) {\n\n int code = get_vlc2(&s->gb, mbincr_vlc.table, MBINCR_VLC_BITS, 2);\n\n if (code < 0)\n\n goto eos; /* error = end of slice */\n\n if (code >= 33) {\n\n if (code == 33) {\n\n s->mb_incr += 33;\n\n }\n\n /* otherwise, stuffing, nothing to do */\n\n } else {\n\n s->mb_incr += code;\n\n break;\n\n }\n\n }\n\n }\n\n if(s->mb_y >= s->mb_height){\n\n fprintf(stderr, \"slice too long\\n\");\n\n return DECODE_SLICE_ERROR;\n\n }\n\n }\n\neos: //end of slice\n\n \n\n emms_c();\n\n\n\n /* end of slice reached */\n\n if (/*s->mb_x == 0 &&*/\n\n s->mb_y == s->mb_height) {\n\n /* end of image */\n\n\n\n if(s->mpeg2)\n\n s->qscale >>=1;\n\n\n\n MPV_frame_end(s);\n\n\n\n if (s->pict_type == B_TYPE || s->low_delay) {\n\n *pict= *(AVFrame*)&s->current_picture;\n\n } else {\n\n s->picture_number++;\n\n /* latency of 1 frame for I and P frames */\n\n /* XXX: use another variable than picture_number */\n\n if (s->last_picture.data[0] == NULL) {\n\n return DECODE_SLICE_OK;\n\n } else {\n\n *pict= *(AVFrame*)&s->last_picture;\n\n }\n\n }\n\n return DECODE_SLICE_EOP;\n\n } else {\n\n return DECODE_SLICE_OK;\n\n }\n\n}\n", + "output": "0", + "index": 8422 + }, + { + "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 = 0, i;\n\n AVFormatContext *is, *os;\n\n AVCodecContext *codec, *icodec;\n\n OutputStream *ost;\n\n InputStream *ist;\n\n char error[1024];\n\n int key;\n\n int want_sdp = 1;\n\n uint8_t *no_packet;\n\n int no_packet_count=0;\n\n int64_t timer_start;\n\n\n\n if (!(no_packet = av_mallocz(nb_input_files)))\n\n exit_program(1);\n\n\n\n if (rate_emu)\n\n for (i = 0; i < nb_input_streams; i++)\n\n input_streams[i].start = av_gettime();\n\n\n\n /* output stream init */\n\n for(i=0;inb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {\n\n av_dump_format(os, i, os->filename, 1);\n\n fprintf(stderr, \"Output file #%d does not contain any stream\\n\", i);\n\n ret = AVERROR(EINVAL);\n\n goto fail;\n\n }\n\n }\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 os = output_files[ost->file_index].ctx;\n\n ist = &input_streams[ost->source_index];\n\n\n\n codec = ost->st->codec;\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 if (ost->st->stream_copy) {\n\n uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;\n\n\n\n if (extra_size > INT_MAX) {\n\n ret = AVERROR(EINVAL);\n\n goto fail;\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( !os->oformat->codec_tag\n\n || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id\n\n || av_codec_get_tag(os->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->extradata= av_mallocz(extra_size);\n\n if (!codec->extradata) {\n\n ret = AVERROR(ENOMEM);\n\n goto fail;\n\n }\n\n memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);\n\n codec->extradata_size= icodec->extradata_size;\n\n\n\n codec->time_base = ist->st->time_base;\n\n if(!strcmp(os->oformat->name, \"avi\")) {\n\n if(!copy_tb && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500){\n\n codec->time_base = icodec->time_base;\n\n codec->time_base.num *= icodec->ticks_per_frame;\n\n codec->time_base.den *= 2;\n\n }\n\n } else if(!(os->oformat->flags & AVFMT_VARIABLE_FPS)) {\n\n if(!copy_tb && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500){\n\n codec->time_base = icodec->time_base;\n\n codec->time_base.num *= icodec->ticks_per_frame;\n\n }\n\n }\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\n\n switch(codec->codec_type) {\n\n case AVMEDIA_TYPE_AUDIO:\n\n if(audio_volume != 256) {\n\n fprintf(stderr,\"-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 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)\n\n codec->block_align= 0;\n\n if(codec->codec_id == CODEC_ID_AC3)\n\n codec->block_align= 0;\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 break;\n\n default:\n\n abort();\n\n }\n\n } else {\n\n if (!ost->enc)\n\n ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);\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 ret = AVERROR(ENOMEM);\n\n goto fail;\n\n }\n\n ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);\n\n if (!codec->sample_rate) {\n\n codec->sample_rate = icodec->sample_rate;\n\n }\n\n choose_sample_rate(ost->st, ost->enc);\n\n codec->time_base = (AVRational){1, codec->sample_rate};\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 if (!codec->channels) {\n\n codec->channels = icodec->channels;\n\n codec->channel_layout = icodec->channel_layout;\n\n }\n\n if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)\n\n codec->channel_layout = 0;\n\n ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;\n\n icodec->request_channels = codec->channels;\n\n ist->decoding_needed = 1;\n\n ost->encoding_needed = 1;\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 break;\n\n case AVMEDIA_TYPE_VIDEO:\n\n if (codec->pix_fmt == PIX_FMT_NONE)\n\n codec->pix_fmt = icodec->pix_fmt;\n\n choose_pixel_fmt(ost->st, ost->enc);\n\n\n\n if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {\n\n fprintf(stderr, \"Video pixel format is unknown, stream cannot be encoded\\n\");\n\n exit_program(1);\n\n }\n\n\n\n if (!codec->width || !codec->height) {\n\n codec->width = icodec->width;\n\n codec->height = icodec->height;\n\n }\n\n\n\n ost->video_resample = codec->width != icodec->width ||\n\n codec->height != icodec->height ||\n\n codec->pix_fmt != icodec->pix_fmt;\n\n if (ost->video_resample) {\n\n codec->bits_per_raw_sample= frame_bits_per_raw_sample;\n\n }\n\n\n\n ost->resample_height = icodec->height;\n\n ost->resample_width = icodec->width;\n\n ost->resample_pix_fmt= icodec->pix_fmt;\n\n ost->encoding_needed = 1;\n\n ist->decoding_needed = 1;\n\n\n\n if (!ost->frame_rate.num)\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 && !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 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};\n\n if( av_q2d(codec->time_base) < 0.001 && video_sync_method\n\n && (video_sync_method==1 || (video_sync_method<0 && !(os->oformat->flags & AVFMT_VARIABLE_FPS)))){\n\n av_log(os, AV_LOG_WARNING, \"Frame rate very high for a muxer not effciciently supporting it.\\n\"\n\n \"Please consider specifiying a lower framerate, a different muxer or -vsync 2\\n\");\n\n }\n\n\n\n#if CONFIG_AVFILTER\n\n if (configure_video_filters(ist, ost)) {\n\n fprintf(stderr, \"Error opening filters!\\n\");\n\n exit(1);\n\n }\n\n#endif\n\n break;\n\n case AVMEDIA_TYPE_SUBTITLE:\n\n ost->encoding_needed = 1;\n\n ist->decoding_needed = 1;\n\n break;\n\n default:\n\n abort();\n\n break;\n\n }\n\n /* two pass mode */\n\n if (ost->encoding_needed && codec->codec_id != CODEC_ID_H264 &&\n\n (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 (codec->flags & CODEC_FLAG_PASS1) {\n\n f = fopen(logfilename, \"wb\");\n\n if (!f) {\n\n fprintf(stderr, \"Cannot write log file '%s' for pass-1 encoding: %s\\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 (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {\n\n fprintf(stderr, \"Error reading log file '%s' for pass-2 encoding\\n\", logfilename);\n\n exit_program(1);\n\n }\n\n codec->stats_in = logbuffer;\n\n }\n\n }\n\n }\n\n if(codec->codec_type == AVMEDIA_TYPE_VIDEO){\n\n /* maximum video buffer size is 6-bytes per pixel, plus DPX header size */\n\n int size= codec->width * codec->height;\n\n bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 1664);\n\n }\n\n }\n\n\n\n if (!bit_buffer)\n\n bit_buffer = av_malloc(bit_buffer_size);\n\n if (!bit_buffer) {\n\n fprintf(stderr, \"Cannot allocate %d bytes output buffer\\n\",\n\n bit_buffer_size);\n\n ret = AVERROR(ENOMEM);\n\n goto fail;\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 = input_streams[ost->source_index].st->codec;\n\n if (!codec) {\n\n snprintf(error, sizeof(error), \"Encoder (codec %s) not found for output stream #%d.%d\",\n\n avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);\n\n ret = AVERROR(EINVAL);\n\n goto dump_format;\n\n }\n\n if (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 (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 }\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, output_streams, nb_output_streams, error, sizeof(error)) < 0))\n\n goto dump_format;\n\n\n\n /* open files and write file headers */\n\n for (i = 0; i < nb_output_files; i++) {\n\n os = output_files[i].ctx;\n\n if (avformat_write_header(os, &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(os->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;ifilename, 1);\n\n }\n\n\n\n /* dump the stream mapping */\n\n if (verbose >= 0) {\n\n fprintf(stderr, \"Stream mapping:\\n\");\n\n for (i = 0; i < nb_output_streams;i ++) {\n\n ost = &output_streams[i];\n\n fprintf(stderr, \" 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 fprintf(stderr, \" [sync #%d.%d]\",\n\n ost->sync_ist->file_index,\n\n ost->sync_ist->st->index);\n\n if(ost->encoding_needed)\n\n fprintf(stderr, \": %s -> %s\",\n\n input_streams[ost->source_index].dec ?\n\n input_streams[ost->source_index].dec->name : \"?\",\n\n ost->enc ? ost->enc->name : \"?\");\n\n else\n\n fprintf(stderr, \": copy\");\n\n fprintf(stderr, \"\\n\");\n\n }\n\n }\n\n\n\n if (ret) {\n\n fprintf(stderr, \"%s\\n\", error);\n\n goto fail;\n\n }\n\n\n\n if (want_sdp) {\n\n print_sdp(output_files, nb_output_files);\n\n }\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: