Function sim_deviceimage

arch/sim/src/sim/sim_deviceimage.c:274–381

 ****************************************************************************/

char *sim_deviceimage(void)
{
  char    *pbuffer;
  int      bufsize = 1024 * 1024;
  int      offset  = 0;
  z_stream strm;
  int      ret;

  /* Initialize inflate state */

  strm.zalloc   = Z_NULL;
  strm.zfree    = Z_NULL;
  strm.opaque   = Z_NULL;
  strm.avail_in = 0;
  strm.next_in  = Z_NULL;
  ret           = inflateInit(&strm);
  if (ret != Z_OK)
    {
      serr("ERROR: inflateInit FAILED: ret=%d msg=\"%s\"\n",
           ret, strm.msg ? strm.msg : "No message");
      return NULL;
    }

  /* Allocate a buffer to hold the decompressed buffer.  We may have to
   * reallocate this a few times to get the size right.
   */

  pbuffer = kmm_malloc(bufsize);

  /* Set up the input buffer */

  strm.avail_in = sizeof(g_vfatdata);
  strm.next_in = (Bytef *)g_vfatdata;

  /* Run inflate() on input until output buffer not full */

  do
    {
      /* Set up to catch the next output chunk in the output buffer */

      strm.avail_out = bufsize - offset;
      strm.next_out  = (Bytef *)&pbuffer[offset];

      /* inflate */

      ret = inflate(&strm, Z_NO_FLUSH);

      /* Handle inflate() error return values */

      switch (ret)
        {
          case Z_NEED_DICT:
          case Z_DATA_ERROR:
          case Z_MEM_ERROR:
          case Z_STREAM_ERROR:
              serr("ERROR: inflate FAILED: ret=%d msg=\"%s\"\n",
                    ret, strm.msg ? strm.msg : "No message");
              inflateEnd(&strm);