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glibc  2.9
fprintf_chk.c File Reference
#include <stdarg.h>
#include <stdio.h>
#include "../libio/libioP.h"

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int ___fprintf_chk (FILE *fp, int flag, const char *format,...)

Function Documentation

int ___fprintf_chk ( FILE fp,
int  flag,
const char *  format,

Definition at line 27 of file fprintf_chk.c.

  va_list ap;
  int done;

  _IO_acquire_lock_clear_flags2 (fp);
  if (flag > 0)
    fp->_flags2 |= _IO_FLAGS2_FORTIFY;

  va_start (ap, format);
  done = vfprintf (fp, format, ap);
  va_end (ap);

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

  return done;