sysdeps/ieee754/ldbl-128ibm-compat/ieee128-vsprintf_chk.c

   1 /* Wrapper for __vsprintf_chk.  IEEE128 version.
   2    Copyright (C) 2019-2020 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   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.
   9
  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.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <libio/libioP.h>
  20
  21 extern int
  22 ___ieee128_vsprintf_chk (char *string, int flag, size_t slen,
  23                         const char *format, va_list ap)
  24 {
  25   unsigned int mode = PRINTF_LDBL_USES_FLOAT128;
  26   if (flag > 0)
  27     mode |= PRINTF_FORTIFY;
  28
  29   /* Regardless of the value of flag, let __vsprintf_internal know that
  30      this is a call from *printf_chk.  */
  31   mode |= PRINTF_CHK;
  32
  33   if (slen == 0)
  34     __chk_fail ();
  35
  36   return __vsprintf_internal (string, slen, format, ap, mode);
  37 }
  38 strong_alias (___ieee128_vsprintf_chk, __vsprintf_chkieee128)