445 err_closed(void)  in err_closed()  function
462         return err_closed();  in fileio_fileno()
470         return err_closed();  in fileio_readable()
478         return err_closed();  in fileio_writable()
486         return err_closed();  in fileio_seekable()
507         return err_closed();  in fileio_readinto()
582         return err_closed();  in fileio_readall()
660         return err_closed();  in fileio_read()
715         return err_closed();  in fileio_write()
815         return err_closed();  in fileio_seek()
827         return err_closed();  in fileio_tell()
845         return err_closed();  in fileio_truncate()
990         return err_closed();  in fileio_isatty()