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[glibc/history.git] / debug / vfprintf_chk.c
blob7146986d5e0608228c563af09c7c9959ce2674fb
1 /* Copyright (C) 1991, 1995, 1996, 1997, 2001, 2004, 2005, 2006, 2007
2 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
20 #include <stdarg.h>
21 #include <stdio.h>
22 #include "../libio/libioP.h"
25 /* Write formatted output to FP from the format string FORMAT. */
26 int
27 ___vfprintf_chk (FILE *fp, int flag, const char *format, va_list ap)
29 int done;
31 _IO_acquire_lock_clear_flags2 (fp);
32 if (flag > 0)
33 fp->_flags2 |= _IO_FLAGS2_FORTIFY;
35 done = vfprintf (fp, format, ap);
37 if (flag > 0)
38 fp->_flags2 &= ~_IO_FLAGS2_FORTIFY;
39 _IO_release_lock (fp);
41 return done;
43 ldbl_hidden_def (___vfprintf_chk, __vfprintf_chk)
44 ldbl_strong_alias (___vfprintf_chk, __vfprintf_chk)