1  /* Copyright (C) 1991-2023 Free Software Foundation, Inc.
       2     This file is part of the GNU C Library.
       3  
       4     The GNU C Library is free software; you can redistribute it and/or
       5     modify it under the terms of the GNU Lesser General Public
       6     License as published by the Free Software Foundation; either
       7     version 2.1 of the License, or (at your option) any later version.
       8  
       9     The GNU C Library is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12     Lesser General Public License for more details.
      13  
      14     You should have received a copy of the GNU Lesser General Public
      15     License along with the GNU C Library; if not, see
      16     <https://www.gnu.org/licenses/>.  */
      17  
      18  #include <stdarg.h>
      19  #include <libio/libioP.h>
      20  
      21  
      22  /* Write formatted output to FP from the format string FORMAT.  */
      23  int
      24  ___fprintf_chk (FILE *fp, int flag, const char *format, ...)
      25  {
      26    /* For flag > 0 (i.e. __USE_FORTIFY_LEVEL > 1) request that %n
      27       can only come from read-only format strings.  */
      28    unsigned int mode = (flag > 0) ? PRINTF_FORTIFY : 0;
      29    va_list ap;
      30    int ret;
      31  
      32    va_start (ap, format);
      33    ret = __vfprintf_internal (fp, format, ap, mode);
      34    va_end (ap);
      35  
      36    return ret;
      37  }
      38  ldbl_hidden_def (___fprintf_chk, __fprintf_chk)
      39  ldbl_strong_alias (___fprintf_chk, __fprintf_chk)