return __hurd_fail (EGRATUITOUS);
return __hurd_fail (ENOTTY);
fioclex (int fd,	 int request){  int flag;  switch (request)    {    default:      return __hurd_fail (EGRATUITOUS);    case FIOCLEX:      flag = FD_CLOEXEC;      break;    case FIONCLEX:      flag = 0;      break;    }  return __fcntl (fd, F_SETFD, flag);}