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vprintf_chk.c

/* Copyright (C) 1991, 1995, 1996, 1997, 2001, 2004
   Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C 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
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#include <stdarg.h>
#include <stdio.h>
#include "../libio/libioP.h"


/* Write formatted output to stdout from the format string FORMAT.  */
int
__vprintf_chk (int flag, const char *format, va_list ap)
{
  int done;

  _IO_acquire_lock (stdout);
  if (flag > 0)
    stdout->_flags2 |= _IO_FLAGS2_FORTIFY;

  done = vfprintf (stdout, format, ap);

  if (flag > 0)
    stdout->_flags2 &= ~_IO_FLAGS2_FORTIFY;
  _IO_release_lock (stdout);

  return done;
}

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