lib/fprintf.c

   1 /* Formatted output to a stream.
   2    Copyright (C) 2004, 2006-2024 Free Software Foundation, Inc.
   3
   4    This file is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU Lesser General Public License as
   6    published by the Free Software Foundation, either version 3 of the
   7    License, or (at your option) any later version.
   8
   9    This file 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
  12    GNU Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public License
  15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16
  17 #ifdef HAVE_CONFIG_H
  18 # include <config.h>
  19 #endif
  20
  21 /* Specification.  */
  22 #include <stdio.h>
  23
  24 #include <errno.h>
  25 #include <limits.h>
  26 #include <stdarg.h>
  27
  28 #include "fseterr.h"
  29 #include "intprops.h"
  30
  31 int
  32 fprintf (FILE *fp, const char *format, ...)
  33 {
  34   va_list args;
  35   off64_t ret;
  36
  37   va_start (args, format);
  38   ret = vfzprintf (fp, format, args);
  39   va_end (args);
  40
  41   if (TYPE_MAXIMUM (off64_t) > INT_MAX && ret > INT_MAX)
  42     {
  43       fseterr (fp);
  44       errno = EOVERFLOW;
  45       return -1;
  46     }
  47
  48   return ret;
  49 }