Function SetupTempDirectory

Descent3/init.cpp:1976–2064

}

void SetupTempDirectory(void) {
  // NOTE: No string tables are available at this point
  //--------------------------------------------------

  mprintf(0, "Setting up temp directory\n");

  int t_arg = FindArg("-tempdir");
  if (t_arg) {
    strcpy(Descent3_temp_directory, GameArgs[t_arg + 1]);
  } else {
    std::error_code ec;
    std::filesystem::path tempPath = std::filesystem::temp_directory_path(ec);
    if (ec) {
      Error("Could not find temporary directory: \"%s\"", ec.message().c_str() );
      exit(1);
    }
    ddio_MakePath(Descent3_temp_directory, tempPath.u8string().c_str(), "Descent3",
                  "cache", NULL);
  }

  std::error_code ec;
  std::filesystem::create_directories(Descent3_temp_directory, ec);
  if (ec) {
    Error("Could not create temporary directory: \"%s\"", Descent3_temp_directory);
    exit(1);
  }

  // verify that temp directory exists
  if (!ddio_SetWorkingDir(Descent3_temp_directory)) {
    Error("Unable to set temporary directory to: \"%s\"", Descent3_temp_directory);
    exit(1);
  }

  char tempfilename[_MAX_PATH];

  // verify that we can write to the temp directory
  if (!ddio_GetTempFileName(Descent3_temp_directory, "d3t", tempfilename)) {
    mprintf(0, "Unable to get temp file name\n");
    Error("Unable to set temporary directory to: \"%s\"", Descent3_temp_directory);
    exit(1);
  }

  // try to create a file in temp directory
  CFILE *file = cfopen(tempfilename, "wb");
  if (!file) {
    // unable to open file for writing
    mprintf(0, "Unable to open temp file name for writing\n");
    Error("Unable to set temporary directory to: \"%s\"", Descent3_temp_directory);
    exit(1);
  }

  cf_WriteInt(file, 0x56);
  cfclose(file);

  // now open up the file and make sure it is correct
  file = cfopen(tempfilename, "rb");
  if (!file) {
    // unable to open file for reading