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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.
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This file is part of the GNU IO Library.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2, or (at
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your option) any later version.
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This library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this library; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
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MA 02111-1307, USA.
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As a special exception, if you link this library with files
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compiled with a GNU compiler to produce an executable, this does
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not cause the resulting executable to be covered by the GNU General
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Public License. This exception does not however invalidate any
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other reasons why the executable file might be covered by the GNU
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General Public License. */
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#include "libioP.h"
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#include "stdio.h"
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int
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fileno (fp)
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_IO_FILE* fp;
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{
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CHECK_FILE (fp, EOF);
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if (!(fp->_flags & _IO_IS_FILEBUF) || _IO_fileno (fp) < 0)
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{
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__set_errno (EBADF);
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return -1;
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}
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return _IO_fileno (fp);
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}
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#ifdef _IO_MTSAFE_IO
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#ifdef weak_alias
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/* The fileno implementation for libio does not require locking because
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it only accesses once a single variable and this is already atomic
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(at least at thread level). */
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weak_alias (fileno, fileno_unlocked)
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#endif
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#endif
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