text: /*
   * Copyright (C) 2008 The Android Open Source Project
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *  * Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *  * Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
   * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
   * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
   * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
   * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
   * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   */
  
  #define _LARGEFILE64_SOURCE
  
  #include <stdio.h>
  #include <stdlib.h>
  #include <stdarg.h>
  #include <stdbool.h>
  #include <stdint.h>
  #include <string.h>
  #include <errno.h>
  #include <fcntl.h>
  #include <unistd.h>
  #include <limits.h>
  #include <ctype.h>
  #include <getopt.h>
  
  #include <sys/time.h>
  #include <sys/types.h>
  
  #include <bootimg.h>
  #include <sparse/sparse.h>
  #include <zipfile/zipfile.h>
  
  #include "fastboot.h"
  
  #ifndef O_BINARY
  #define O_BINARY 0
  #endif
  
  char cur_product[FB_RESPONSE_SZ + 1];
  
  void bootimg_set_cmdline(boot_img_hdr *h, const char *cmdline);
  
  boot_img_hdr *mkbootimg(void *kernel, unsigned kernel_size, unsigned kernel_offset,
                          void *ramdisk, unsigned ramdisk_size, unsigned ramdisk_offset,
                          void *second, unsigned second_size, unsigned second_offset,
                          unsigned page_size, unsigned base, unsigned tags_offset,
                          unsigned *bootimg_size);
  
  static usb_handle *usb = 0;
  static const char *serial = 0;
  static const char *product = 0;
  static const char *cmdline = 0;
  static int wipe_data = 0;
  static unsigned short vendor_id = 0;
  static int long_listing = 0;
  static int64_t sparse_limit = -1;
  static int64_t target_sparse_limit = -1;
  
  unsigned page_size = 2048;
  unsigned base_addr      = 0x10000000;
  unsigned kernel_offset  = 0x00008000;
  unsigned ramdisk_offset = 0x01000000;
  unsigned second_offset  = 0x00f00000;
  unsigned tags_offset    = 0x00000100;
  
  
  void die(const char *fmt, ...)
  {
      va_list ap;
      va_start(ap, fmt);
      fprintf(stderr,"error: ");
      vfprintf(stderr, fmt, ap);
      fprintf(stderr,"\n");
      va_end(ap);
      exit(1);
  }
  
  void get_my_path(char *path);
  
  char *find_item(const char *item, const char *product)
  {
      char *dir;
      char *fn;
      char path[PATH_MAX + 128];
  
      if(!strcmp(item,"boot")) {
          fn = "boot.img";
      } else if(!strcmp(item,"recovery")) {
          fn = "recovery.img";
      } else if(!strcmp(item,"system")) {
          fn = "system.img";
      } else if(!strcmp(item,"userdata")) {
          fn = "userdata.img";
      } else if(!strcmp(item,"cache")) {
          fn = "cache.img";
      } else if(!strcmp(item,"info")) {
          fn = "android-info.txt";
      } else {
          fprintf(stderr,"unknown partition '%s'\n", item);
          return 0;
      }
  
      if(product) {
          get_my_path(path);
          sprintf(path + strlen(path),
                  "../../../target/product/%s/%s", product, fn);
          return strdup(path);
      }
  
      dir = getenv("ANDROID_PRODUCT_OUT");
      if((dir == 0) || (dir[0] == 0)) {
          die("neither -p product specified nor ANDROID_PRODUCT_OUT set");
          return 0;
      }
  
      sprintf(path, "%s/%s", dir, fn);
      return strdup(path);
  }
  
  #ifdef _WIN32
  void *load_file(const char *fn, unsigned *_sz);
  int64_t file_size(const char *fn);
  #else
  #if defined(__APPLE__) && defined(__MACH__)
  #define lseek64 lseek
  #define off64_t off_t
  #endif
  
  int64_t file_size(const char *fn)
  {
      off64_t off;
      int fd;
  
      fd = open(fn, O_RDONLY);
      if (fd < 0) return -1;
  
      off = lseek64(fd, 0, SEEK_END);
      close(fd);
  
      return off;
  }
  
  void *load_file(const char *fn, unsigned *_sz)
  {
      char *data;
      int sz;
      int fd;
      int errno_tmp;
  
      data = 0;
      fd = open(fn, O_RDONLY);
      if(fd < 0) return 0;
  
      sz = lseek(fd, 0, SEEK_END);
      if(sz < 0) goto oops;
  
      if(lseek(fd, 0, SEEK_SET) != 0) goto oops;
  
      data = (char*) malloc(sz);
      if(data == 0) goto oops;
  
      if(read(fd, data, sz) != sz) goto oops;
      close(fd);
  
      if(_sz) *_sz = sz;
      return data;
  
  oops:
      errno_tmp = errno;
      close(fd);
      if(data != 0) free(data);
      errno = errno_tmp;
      return 0;
  }
  #endif
  
  int match_fastboot_with_serial(usb_ifc_info *info, const char *local_serial)
  {
      if(!(vendor_id && (info->dev_vendor == vendor_id)) &&
         (info->dev_vendor != 0x18d1) &&  // Google
         (info->dev_vendor != 0x8087) &&  // Intel
         (info->dev_vendor != 0x0451) &&
         (info->dev_vendor != 0x0502) &&
         (info->dev_vendor != 0x0fce) &&  // Sony Ericsson
         (info->dev_vendor != 0x05c6) &&  // Qualcomm
         (info->dev_vendor != 0x22b8) &&  // Motorola
         (info->dev_vendor != 0x0955) &&  // Nvidia
         (info->dev_vendor != 0x413c) &&  // DELL
         (info->dev_vendor != 0x2314) &&  // INQ Mobile
         (info->dev_vendor != 0x0b05) &&  // Asus
         (info->dev_vendor != 0x0bb4))    // HTC
              return -1;
      if(info->ifc_class != 0xff) return -1;
      if(info->ifc_subclass != 0x42) return -1;
      if(info->ifc_protocol != 0x03) return -1;
      // require matching serial number or device path if requested
      // at the command line with the -s option.
      if (local_serial && (strcmp(local_serial, info->serial_number) != 0 &&
                     strcmp(local_serial, info->device_path) != 0)) return -1;
      return 0;
  }
  
  int match_fastboot(usb_ifc_info *info)
  {
      return match_fastboot_with_serial(info, serial);
  }
  
  int list_devices_callback(usb_ifc_info *info)
  {
      if (match_fastboot_with_serial(info, NULL) == 0) {
          char* serial = info->serial_number;
          if (!info->writable) {
              serial = "no permissions"; // like "adb devices"
          }
          if (!serial[0]) {
              serial = "????????????";
          }
          // output compatible with "adb devices"
          if (!long_listing) {
              printf("%s\tfastboot\n", serial);
          } else if (!info->device_path) {
              printf("%-22s fastboot\n", serial);
          } else {
              printf("%-22s fastboot %s\n", serial, info->device_path);
          }
      }
  
      return -1;
  }
  
  usb_handle *open_device(void)
  {
      static usb_handle *usb = 0;
      int announce = 1;
  
      if(usb) return usb;
  
      for(;;) {
          usb = usb_open(match_fastboot);
          if(usb) return usb;
          if(announce) {
              announce = 0;
              fprintf(stderr,"< waiting for device >\n");
          }
          sleep(1);
      }
  }
  
  void list_devices(void) {
      // We don't actually open a USB device here,
      // just getting our callback called so we can
      // list all the connected devices.
      usb_open(list_devices_callback);
  }
  
  void usage(void)
  {
      fprintf(stderr,
  /*           1234567890123456789012345678901234567890123456789012345678901234567890123456 */
              "usage: fastboot [ <option> ] <command>\n"
              "\n"
              "commands:\n"
              "  update <filename>                        reflash device from update.zip\n"
              "  flashall                                 flash boot + recovery + system\n"
              "  flash <partition> [ <filename> ]         write a file to a flash partition\n"
              "  erase <partition>                        erase a flash partition\n"
              "  format <partition>                       format a flash partition \n"
              "  getvar <variable>                        display a bootloader variable\n"
              "  boot <kernel> [ <ramdisk> ]              download and boot kernel\n"
              "  flash:raw boot <kernel> [ <ramdisk> ]    create bootimage and flash it\n"
              "  devices                                  list all connected devices\n"
              "  continue                                 continue with autoboot\n"
              "  reboot                                   reboot device normally\n"
              "  reboot-bootloader                        reboot device into bootloader\n"
              "  help                                     show this help message\n"
              "\n"
              "options:\n"
              "  -w                                       erase userdata and cache (and format\n"
              "                                           if supported by partition type)\n"
              "  -u                                       do not first erase partition before\n"
              "                                           formatting\n"
              "  -s <specific device>                     specify device serial number\n"
              "                                           or path to device port\n"
              "  -l                                       with \"devices\", lists device paths\n"
              "  -p <product>                             specify product name\n"
              "  -c <cmdline>                             override kernel commandline\n"
              "  -i <vendor id>                           specify a custom USB vendor id\n"
              "  -b <base_addr>                           specify a custom kernel base address. default: 0x10000000\n"
              "  -n <page size>                           specify the nand page size. default: 2048\n"
              "  -S <size>[K|M|G]                         automatically sparse files greater than\n"
              "                                           size.  0 to disable\n"
          );
  }
  
  void *load_bootable_image(const char *kernel, const char *ramdisk,
                            unsigned *sz, const char *cmdline)
  {
      void *kdata = 0, *rdata = 0;
      unsigned ksize = 0, rsize = 0;
      void *bdata;
      unsigned bsize;
  
      if(kernel == 0) {
          fprintf(stderr, "no image specified\n");
          return 0;
      }
  
      kdata = load_file(kernel, &ksize);
      if(kdata == 0) {
          fprintf(stderr, "cannot load '%s': %s\n", kernel, strerror(errno));
          return 0;
      }
  
          /* is this actually a boot image? */
      if(!memcmp(kdata, BOOT_MAGIC, BOOT_MAGIC_SIZE)) {
          if(cmdline) bootimg_set_cmdline((boot_img_hdr*) kdata, cmdline);
  
          if(ramdisk) {
              fprintf(stderr, "cannot boot a boot.img *and* ramdisk\n");
              return 0;
          }
  
          *sz = ksize;
          return kdata;
      }
  
      if(ramdisk) {
          rdata = load_file(ramdisk, &rsize);
          if(rdata == 0) {
              fprintf(stderr,"cannot load '%s': %s\n", ramdisk, strerror(errno));
              return  0;
          }
      }
  
      fprintf(stderr,"creating boot image...\n");
      bdata = mkbootimg(kdata, ksize, kernel_offset,
                        rdata, rsize, ramdisk_offset,
                        0, 0, second_offset,
                        page_size, base_addr, tags_offset, &bsize);
      if(bdata == 0) {
          fprintf(stderr,"failed to create boot.img\n");
          return 0;
      }
      if(cmdline) bootimg_set_cmdline((boot_img_hdr*) bdata, cmdline);
      fprintf(stderr,"creating boot image - %d bytes\n", bsize);
      *sz = bsize;
  
      return bdata;
  }
  
  void *unzip_file(zipfile_t zip, const char *name, unsigned *sz)
  {
      void *data;
      zipentry_t entry;
      unsigned datasz;
  
      entry = lookup_zipentry(zip, name);
      if (entry == NULL) {
          fprintf(stderr, "archive does not contain '%s'\n", name);
          return 0;
      }
  
      *sz = get_zipentry_size(entry);
  
      datasz = *sz * 1.001;
      data = malloc(datasz);
  
      if(data == 0) {
          fprintf(stderr, "failed to allocate %d bytes\n", *sz);
          return 0;
      }
  
      if (decompress_zipentry(entry, data, datasz)) {
          fprintf(stderr, "failed to unzip '%s' from archive\n", name);
          free(data);
          return 0;
      }
  
      return data;
  }
  
  static char *strip(char *s)
  {
      int n;
      while(*s && isspace(*s)) s++;
      n = strlen(s);
      while(n-- > 0) {
          if(!isspace(s[n])) break;
          s[n] = 0;
      }
      return s;
  }
  
  #define MAX_OPTIONS 32
  static int setup_requirement_line(char *name)
  {
      char *val[MAX_OPTIONS];
      const char **out;
      char *prod = NULL;
      unsigned n, count;
      char *x;
      int invert = 0;
  
      if (!strncmp(name, "reject ", 7)) {
          name += 7;
          invert = 1;
      } else if (!strncmp(name, "require ", 8)) {
          name += 8;
          invert = 0;
      } else if (!strncmp(name, "require-for-product:", 20)) {
          // Get the product and point name past it
          prod = name + 20;
          name = strchr(name, ' ');
          if (!name) return -1;
          *name = 0;
          name += 1;
          invert = 0;
      }
  
      x = strchr(name, '=');
      if (x == 0) return 0;
      *x = 0;
      val[0] = x + 1;
  
      for(count = 1; count < MAX_OPTIONS; count++) {
          x = strchr(val[count - 1],'|');
          if (x == 0) break;
          *x = 0;
          val[count] = x + 1;
      }
  
      name = strip(name);
      for(n = 0; n < count; n++) val[n] = strip(val[n]);
  
      name = strip(name);
      if (name == 0) return -1;
  
          /* work around an unfortunate name mismatch */
      if (!strcmp(name,"board")) name = "product";
  
      out = malloc(sizeof(char*) * count);
      if (out == 0) return -1;
  
      for(n = 0; n < count; n++) {
          out[n] = strdup(strip(val[n]));
          if (out[n] == 0) return -1;
      }
  
      fb_queue_require(prod, name, invert, n, out);
      return 0;
  }
  
  static void setup_requirements(char *data, unsigned sz)
  {
      char *s;
  
      s = data;
      while (sz-- > 0) {
          if(*s == '\n') {
              *s++ = 0;
              if (setup_requirement_line(data)) {
                  die("out of memory");
              }
              data = s;
          } else {
              s++;
          }
      }
  }
  
  void queue_info_dump(void)
  {
      fb_queue_notice("--------------------------------------------");
      fb_queue_display("version-bootloader", "Bootloader Version...");
      fb_queue_display("version-baseband",   "Baseband Version.....");
      fb_queue_display("serialno",           "Serial Number........");
      fb_queue_notice("--------------------------------------------");
  }
  
  
  struct sparse_file **load_sparse_files(const char *fname, int max_size)
  {
      int fd;
      struct sparse_file *s;
      int files;
      struct sparse_file **out_s;
  
      fd = open(fname, O_RDONLY | O_BINARY);
      if (fd < 0) {
          die("cannot open '%s'\n", fname);
      }
  
      s = sparse_file_import_auto(fd, false);
      if (!s) {
          die("cannot sparse read file '%s'\n", fname);
      }
  
      files = sparse_file_resparse(s, max_size, NULL, 0);
      if (files < 0) {
          die("Failed to resparse '%s'\n", fname);
      }
  
      out_s = calloc(sizeof(struct sparse_file *), files + 1);
      if (!out_s) {
          die("Failed to allocate sparse file array\n");
      }
  
      files = sparse_file_resparse(s, max_size, out_s, files);
      if (files < 0) {
          die("Failed to resparse '%s'\n", fname);
      }
  
      return out_s;
  }
  
  static int64_t get_target_sparse_limit(struct usb_handle *usb)
  {
      int64_t limit = 0;
      char response[FB_RESPONSE_SZ + 1];
      int status = fb_getvar(usb, response, "max-download-size");
  
      if (!status) {
          limit = strtoul(response, NULL, 0);
          if (limit > 0) {
              fprintf(stderr, "target reported max download size of %lld bytes\n",
                      limit);
          }
      }
  
      return limit;
  }
  
  static int64_t get_sparse_limit(struct usb_handle *usb, int64_t size)
  {
      int64_t limit;
  
      if (sparse_limit == 0) {
          return 0;
      } else if (sparse_limit > 0) {
          limit = sparse_limit;
      } else {
          if (target_sparse_limit == -1) {
              target_sparse_limit = get_target_sparse_limit(usb);
          }
          if (target_sparse_limit > 0) {
              limit = target_sparse_limit;
          } else {
              return 0;
          }
      }
  
      if (size > limit) {
          return limit;
      }
  
      return 0;
  }
  
  /* Until we get lazy inode table init working in make_ext4fs, we need to
   * erase partitions of type ext4 before flashing a filesystem so no stale
   * inodes are left lying around.  Otherwise, e2fsck gets very upset.
   */
  static int needs_erase(const char *part)
  {
      /* The function fb_format_supported() currently returns the value
       * we want, so just call it.
       */
       return fb_format_supported(usb, part);
  }
  
  void do_flash(usb_handle *usb, const char *pname, const char *fname)
  {
      int64_t sz64;
      void *data;
      int64_t limit;
  
      sz64 = file_size(fname);
      limit = get_sparse_limit(usb, sz64);
      if (limit) {
          struct sparse_file **s = load_sparse_files(fname, limit);
          if (s == NULL) {
              die("cannot sparse load '%s'\n", fname);
          }
          while (*s) {
              sz64 = sparse_file_len(*s, true, false);
              fb_queue_flash_sparse(pname, *s++, sz64);
          }
      } else {
          unsigned int sz;
          data = load_file(fname, &sz);
          if (data == 0) die("cannot load '%s': %s\n", fname, strerror(errno));
          fb_queue_flash(pname, data, sz);
      }
  }
  
  void do_update_signature(zipfile_t zip, char *fn)
  {
      void *data;
      unsigned sz;
      data = unzip_file(zip, fn, &sz);
      if (data == 0) return;
      fb_queue_download("signature", data, sz);
      fb_queue_command("signature", "installing signature");
  }
  
  void do_update(char *fn, int erase_first)
  {
      void *zdata;
      unsigned zsize;
      void *data;
      unsigned sz;
      zipfile_t zip;
  
      queue_info_dump();
  
      fb_queue_query_save("product", cur_product, sizeof(cur_product));
  
      zdata = load_file(fn, &zsize);
      if (zdata == 0) die("failed to load '%s': %s", fn, strerror(errno));
  
      zip = init_zipfile(zdata, zsize);
      if(zip == 0) die("failed to access zipdata in '%s'");
  
      data = unzip_file(zip, "android-info.txt", &sz);
      if (data == 0) {
          char *tmp;
              /* fallback for older zipfiles */
          data = unzip_file(zip, "android-product.txt", &sz);
          if ((data == 0) || (sz < 1)) {
              die("update package has no android-info.txt or android-product.txt");
          }
          tmp = malloc(sz + 128);
          if (tmp == 0) die("out of memory");
          sprintf(tmp,"board=%sversion-baseband=0.66.04.19\n",(char*)data);
          data = tmp;
          sz = strlen(tmp);
      }
  
      setup_requirements(data, sz);
  
      data = unzip_file(zip, "boot.img", &sz);
      if (data == 0) die("update package missing boot.img");
      do_update_signature(zip, "boot.sig");
      if (erase_first && needs_erase("boot")) {
          fb_queue_erase("boot");
      }
      fb_queue_flash("boot", data, sz);
  
      data = unzip_file(zip, "recovery.img", &sz);
      if (data != 0) {
          do_update_signature(zip, "recovery.sig");
          if (erase_first && needs_erase("recovery")) {
              fb_queue_erase("recovery");
          }
          fb_queue_flash("recovery", data, sz);
      }
  
      data = unzip_file(zip, "system.img", &sz);
      if (data == 0) die("update package missing system.img");
      do_update_signature(zip, "system.sig");
      if (erase_first && needs_erase("system")) {
          fb_queue_erase("system");
      }
      fb_queue_flash("system", data, sz);
  }
  
  void do_send_signature(char *fn)
  {
      void *data;
      unsigned sz;
      char *xtn;
  
      xtn = strrchr(fn, '.');
      if (!xtn) return;
      if (strcmp(xtn, ".img")) return;
  
      strcpy(xtn,".sig");
      data = load_file(fn, &sz);
      strcpy(xtn,".img");
      if (data == 0) return;
      fb_queue_download("signature", data, sz);
      fb_queue_command("signature", "installing signature");
  }
  
  void do_flashall(int erase_first)
  {
      char *fname;
      void *data;
      unsigned sz;
  
      queue_info_dump();
  
      fb_queue_query_save("product", cur_product, sizeof(cur_product));
  
      fname = find_item("info", product);
      if (fname == 0) die("cannot find android-info.txt");
      data = load_file(fname, &sz);
      if (data == 0) die("could not load android-info.txt: %s", strerror(errno));
      setup_requirements(data, sz);
  
      fname = find_item("boot", product);
      data = load_file(fname, &sz);
      if (data == 0) die("could not load boot.img: %s", strerror(errno));
      do_send_signature(fname);
      if (erase_first && needs_erase("boot")) {
          fb_queue_erase("boot");
      }
      fb_queue_flash("boot", data, sz);
  
      fname = find_item("recovery", product);
      data = load_file(fname, &sz);
      if (data != 0) {
          do_send_signature(fname);
          if (erase_first && needs_erase("recovery")) {
              fb_queue_erase("recovery");
          }
          fb_queue_flash("recovery", data, sz);
      }
  
      fname = find_item("system", product);
      data = load_file(fname, &sz);
      if (data == 0) die("could not load system.img: %s", strerror(errno));
      do_send_signature(fname);
      if (erase_first && needs_erase("system")) {
          fb_queue_erase("system");
      }
      fb_queue_flash("system", data, sz);
  }
  
  #define skip(n) do { argc -= (n); argv += (n); } while (0)
  #define require(n) do { if (argc < (n)) {usage(); exit(1);}} while (0)
  
  int do_oem_command(int argc, char **argv)
  {
      int i;
      char command[256];
      if (argc <= 1) return 0;
  
      command[0] = 0;
      while(1) {
          strcat(command,*argv);
          skip(1);
          if(argc == 0) break;
          strcat(command," ");
      }
  
      fb_queue_command(command,"");
      return 0;
  }
  
  static int64_t parse_num(const char *arg)
  {
      char *endptr;
      unsigned long long num;
  
      num = strtoull(arg, &endptr, 0);
      if (endptr == arg) {
          return -1;
      }
  
      if (*endptr == 'k' || *endptr == 'K') {
          if (num >= (-1ULL) / 1024) {
              return -1;
          }
          num *= 1024LL;
          endptr++;
      } else if (*endptr == 'm' || *endptr == 'M') {
          if (num >= (-1ULL) / (1024 * 1024)) {
              return -1;
          }
          num *= 1024LL * 1024LL;
          endptr++;
      } else if (*endptr == 'g' || *endptr == 'G') {
          if (num >= (-1ULL) / (1024 * 1024 * 1024)) {
              return -1;
          }
          num *= 1024LL * 1024LL * 1024LL;
          endptr++;
      }
  
      if (*endptr != '\0') {
          return -1;
      }
  
      if (num > INT64_MAX) {
          return -1;
      }
  
      return num;
  }
  
  int main(int argc, char **argv)
  {
      int wants_wipe = 0;
      int wants_reboot = 0;
      int wants_reboot_bootloader = 0;
      int erase_first = 1;
      void *data;
      unsigned sz;
      int status;
      int c;
      int r;
  
      const struct option longopts[] = {
          {"base", required_argument, 0, 'b'},
          {"kernel_offset", required_argument, 0, 'k'},
          {"page_size", required_argument, 0, 'n'},
          {"ramdisk_offset", required_argument, 0, 'r'},
          {"help", 0, 0, 'h'},
          {0, 0, 0, 0}
      };
  
      serial = getenv("ANDROID_SERIAL");
  
      while (1) {
          int option_index = 0;
          c = getopt_long(argc, argv, "wub:k:n:r:s:S:lp:c:i:m:h", longopts, NULL);
          if (c < 0) {
              break;
          }
          /* Alphabetical cases */
          switch (c) {
          case 'b':
              base_addr = strtoul(optarg, 0, 16);
              break;
          case 'c':
              cmdline = optarg;
              break;
          case 'h':
              usage();
              return 1;
          case 'i': {
                  char *endptr = NULL;
                  unsigned long val;
  
                  val = strtoul(optarg, &endptr, 0);
                  if (!endptr || *endptr != '\0' || (val & ~0xffff))
                      die("invalid vendor id '%s'", optarg);
                  vendor_id = (unsigned short)val;
                  break;
              }
          case 'k':
              kernel_offset = strtoul(optarg, 0, 16);
              break;
          case 'l':
              long_listing = 1;
              break;
          case 'n':
              page_size = (unsigned)strtoul(optarg, NULL, 0);
              if (!page_size) die("invalid page size");
              break;
          case 'p':
              product = optarg;
              break;
          case 'r':
              ramdisk_offset = strtoul(optarg, 0, 16);
              break;
          case 's':
              serial = optarg;
              break;
          case 'S':
              sparse_limit = parse_num(optarg);
              if (sparse_limit < 0) {
                      die("invalid sparse limit");
              }
              break;
          case 'u':
              erase_first = 0;
              break;
          case 'w':
              wants_wipe = 1;
              break;
          case '?':
              return 1;
          default:
              abort();
          }
      }
  
      argc -= optind;
      argv += optind;
  
      if (argc == 0 && !wants_wipe) {
          usage();
          return 1;
      }
  
      if (argc > 0 && !strcmp(*argv, "devices")) {
          skip(1);
          list_devices();
          return 0;
      }
  
      if (argc > 0 && !strcmp(*argv, "help")) {
          usage();
          return 0;
      }
  
      usb = open_device();
  
      while (argc > 0) {
          if(!strcmp(*argv, "getvar")) {
              require(2);
              fb_queue_display(argv[1], argv[1]);
              skip(2);
          } else if(!strcmp(*argv, "erase")) {
              require(2);
  
              if (fb_format_supported(usb, argv[1])) {
                  fprintf(stderr, "******** Did you mean to fastboot format this partition?\n");
              }
  
              fb_queue_erase(argv[1]);
              skip(2);
          } else if(!strcmp(*argv, "format")) {
              require(2);
              if (erase_first && needs_erase(argv[1])) {
                  fb_queue_erase(argv[1]);
              }
              fb_queue_format(argv[1], 0);
              skip(2);
          } else if(!strcmp(*argv, "signature")) {
              require(2);
              data = load_file(argv[1], &sz);
              if (data == 0) die("could not load '%s': %s", argv[1], strerror(errno));
              if (sz != 256) die("signature must be 256 bytes");
              fb_queue_download("signature", data, sz);
              fb_queue_command("signature", "installing signature");
              skip(2);
          } else if(!strcmp(*argv, "reboot")) {
              wants_reboot = 1;
              skip(1);
          } else if(!strcmp(*argv, "reboot-bootloader")) {
              wants_reboot_bootloader = 1;
              skip(1);
          } else if (!strcmp(*argv, "continue")) {
              fb_queue_command("continue", "resuming boot");
              skip(1);
          } else if(!strcmp(*argv, "boot")) {
              char *kname = 0;
              char *rname = 0;
              skip(1);
              if (argc > 0) {
                  kname = argv[0];
                  skip(1);
              }
              if (argc > 0) {
                  rname = argv[0];
                  skip(1);
              }
              data = load_bootable_image(kname, rname, &sz, cmdline);
              if (data == 0) return 1;
              fb_queue_download("boot.img", data, sz);
              fb_queue_command("boot", "booting");
          } else if(!strcmp(*argv, "flash")) {
              char *pname = argv[1];
              char *fname = 0;
              require(2);
              if (argc > 2) {
                  fname = argv[2];
                  skip(3);
              } else {
                  fname = find_item(pname, product);
                  skip(2);
              }
              if (fname == 0) die("cannot determine image filename for '%s'", pname);
              if (erase_first && needs_erase(pname)) {
                  fb_queue_erase(pname);
              }
              do_flash(usb, pname, fname);
          } else if(!strcmp(*argv, "flash:raw")) {
              char *pname = argv[1];
              char *kname = argv[2];
              char *rname = 0;
              require(3);
              if(argc > 3) {
                  rname = argv[3];
                  skip(4);
              } else {
                  skip(3);
              }
              data = load_bootable_image(kname, rname, &sz, cmdline);
              if (data == 0) die("cannot load bootable image");
              fb_queue_flash(pname, data, sz);
          } else if(!strcmp(*argv, "flashall")) {
              skip(1);
              do_flashall(erase_first);
              wants_reboot = 1;
          } else if(!strcmp(*argv, "update")) {
              if (argc > 1) {
                  do_update(argv[1], erase_first);
                  skip(2);
              } else {
                  do_update("update.zip", erase_first);
                  skip(1);
              }
              wants_reboot = 1;
          } else if(!strcmp(*argv, "oem")) {
              argc = do_oem_command(argc, argv);
          } else {
              usage();
              return 1;
          }
      }
  
      if (wants_wipe) {
          fb_queue_erase("userdata");
          fb_queue_format("userdata", 1);
          fb_queue_erase("cache");
          fb_queue_format("cache", 1);
      }
      if (wants_reboot) {
          fb_queue_reboot();
      } else if (wants_reboot_bootloader) {
          fb_queue_command("reboot-bootloader", "rebooting into bootloader");
      }
  
      if (fb_queue_is_empty())
          return 0;
  
      status = fb_execute_queue(usb);
      return (status) ? 1 : 0;
  }
  