rem: read_input (char *dest, int max_n_bytes)
add: read_input (char *dest, size_t max_n_bytes)
context: read_input (char *dest, int max_n_bytes){  size_t bytes_read;  if (max_n_bytes == 0)    return 0;  bytes_read = safe_read (input_desc, dest, max_n_bytes);  if (bytes_read == 0)    have_read_eof = TRUE;  if (bytes_read == SAFE_READ_ERROR)    {      error (0, errno, _("read error"));      cleanup_fatal ();    }  return bytes_read;}