}
FILE *maildir_open_find_message (const char *folder, const char *msg){  char unique[_POSIX_PATH_MAX];  FILE *fp;  maildir_canon_filename (unique, msg, sizeof (unique));    if ((fp = _maildir_open_find_message (folder, unique, "new")) || errno != ENOENT)    return fp;  if ((fp = _maildir_open_find_message (folder, unique, "cur")) || errno != ENOENT)    return fp;    return NULL;  }