Back to index

glibc  2.9
vprintf_chk.c
Go to the documentation of this file.
00001 /* Copyright (C) 1991, 1995, 1996, 1997, 2001, 2004, 2006, 2007
00002    Free Software Foundation, Inc.
00003    This file is part of the GNU C Library.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 #include <stdarg.h>
00021 #include <stdio.h>
00022 #include "../libio/libioP.h"
00023 
00024 
00025 /* Write formatted output to stdout from the format string FORMAT.  */
00026 int
00027 ___vprintf_chk (int flag, const char *format, va_list ap)
00028 {
00029   int done;
00030 
00031   _IO_acquire_lock_clear_flags2 (stdout);
00032   if (flag > 0)
00033     stdout->_flags2 |= _IO_FLAGS2_FORTIFY;
00034 
00035   done = vfprintf (stdout, format, ap);
00036 
00037   if (flag > 0)
00038     stdout->_flags2 &= ~_IO_FLAGS2_FORTIFY;
00039   _IO_release_lock (stdout);
00040 
00041   return done;
00042 }
00043 ldbl_strong_alias (___vprintf_chk, __vprintf_chk)