mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-23 19:30:10 +00:00
110215a9a7
1999-07-08 Andreas Schwab <schwab@suse.de> * libio/iofopncook.c (fopencookie): Set _fileno to -2. * libio/libioP.h (_IO_file_is_open): Only check for -1, not all negative numbers. * libio/fileops.c (_IO_new_file_close_it): Set _fileno to -1, not EOF. * libio/oldfileops.c (_IO_old_file_close_it): Likewise. 1999-07-08 Andreas Schwab <schwab@suse.de> * stdio-common/vfprintf.c (buffered_vfprintf): Initialize _mode. 1999-07-08 Andreas Schwab <schwab@suse.de> * libio/fileno.c: Return -1 instead of EOF and set errno if the stream is not a real file stream. 1999-07-08 Andreas Schwab <schwab@suse.de> * manual/charset.texi: Fix typos.
53 lines
1.7 KiB
C
53 lines
1.7 KiB
C
/* Copyright (C) 1993, 1995, 1996, 1997 Free Software Foundation, Inc.
|
|
This file is part of the GNU IO Library.
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License as
|
|
published by the Free Software Foundation; either version 2, or (at
|
|
your option) any later version.
|
|
|
|
This library is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this library; see the file COPYING. If not, write to
|
|
the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
|
|
MA 02111-1307, USA.
|
|
|
|
As a special exception, if you link this library with files
|
|
compiled with a GNU compiler to produce an executable, this does
|
|
not cause the resulting executable to be covered by the GNU General
|
|
Public License. This exception does not however invalidate any
|
|
other reasons why the executable file might be covered by the GNU
|
|
General Public License. */
|
|
|
|
#include "libioP.h"
|
|
#include "stdio.h"
|
|
|
|
int
|
|
fileno (fp)
|
|
_IO_FILE* fp;
|
|
{
|
|
CHECK_FILE (fp, EOF);
|
|
|
|
if (!(fp->_flags & _IO_IS_FILEBUF) || _IO_fileno (fp) < 0)
|
|
{
|
|
__set_errno (EBADF);
|
|
return -1;
|
|
}
|
|
|
|
return _IO_fileno (fp);
|
|
}
|
|
|
|
#ifdef _IO_MTSAFE_IO
|
|
#ifdef weak_alias
|
|
/* The fileno implementation for libio does not require locking because
|
|
it only accesses once a single variable and this is already atomic
|
|
(at least at thread level). */
|
|
|
|
weak_alias (fileno, fileno_unlocked)
|
|
#endif
|
|
#endif
|