Function CreateCRCFileName

Descent3/pilot.cpp:2191–2216

CreateCRCFileName Given a filename, this function will open the file, make a CRC of the data and then fill in dest buffer with _ where is the original filename and is the converted string of the CRC in hex. returns true on success. dest should be size of src + 9 (for the _ & CRC)

//	returns true on success.
//	dest should be size of src + 9 (for the _ & CRC)
bool CreateCRCFileName(const char *src, char *dest) {
  ASSERT(src);
  ASSERT(dest);

  if (cfexist(src) != CFES_ON_DISK)
    return false;

  uint32_t crc_value = cf_GetfileCRC((char *)src);
  if (crc_value == 0) {
    mprintf(0, "CRC WARNING: A CRC of 0 HAS BEEN GENERATED!\n");
  }
  char hex_string[10];
  snprintf(hex_string, sizeof(hex_string), "_%08X", crc_value);

  char ext[256];
  ddio_SplitPath(src, NULL, NULL, ext);

  // now create the full filename
  // first strip any possible CRC on the file
  StripCRCFileName(src, dest);
  dest[strlen(dest) - strlen(ext)] = '\0'; // lose the extension
  strcat(dest, hex_string);
  strcat(dest, ext); // put extension back

  return true;
}

//	CreateCRCFileName
//