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1b1d36792e
2004-11-18 Ulrich Drepper <drepper@redhat.com> * libio/libio.h (_IO_FLAGS2_FORTIFY): Renamed from _IO_FLAGS2_CHECK_PERCENT_N. * debug/fprintff_chk.c: Adjust all users. * debug/printf_chk.c: Likewise. * debug/vfprintf_chk.c: Likewise. * debug/vprintf_chk.c: Likewise. * debug/vsnprintf_chk.c: Likewise. * debug/vsprintf_chk.c: Likewise. * stdio-common/vfprintf.c: Likewise. Detect missing %N$ formats. * debug/tst-chk1.c: Test detection of missing %N$ formats.
46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
/* Copyright (C) 1991, 1995, 1996, 1997, 2001, 2004
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Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <stdarg.h>
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#include <stdio.h>
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#include "../libio/libioP.h"
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/* Write formatted output to stdout from the format string FORMAT. */
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int
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__printf_chk (int flag, const char *format, ...)
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{
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va_list ap;
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int done;
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_IO_acquire_lock (stdout);
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if (flag > 0)
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stdout->_flags2 |= _IO_FLAGS2_FORTIFY;
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va_start (ap, format);
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done = vfprintf (stdout, format, ap);
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va_end (ap);
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if (flag > 0)
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stdout->_flags2 &= ~_IO_FLAGS2_FORTIFY;
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_IO_release_lock (stdout);
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return done;
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}
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