stdio-common/snprintf.c

   1 /* Copyright (C) 1991, 1995 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 Library General Public License as
   6 published by the Free Software Foundation; either version 2 of the
   7 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 Library General Public License for more details.
  13
  14 You should have received a copy of the GNU Library General Public
  15 License along with the GNU C Library; see the file COPYING.LIB.  If
  16 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
  17 Cambridge, MA 02139, USA.  */
  18
  19 #include <stdarg.h>
  20 #include <stdio.h>
  21
  22 #ifdef USE_IN_LIBIO
  23 # define vsnprintf _IO_vsnprintf
  24 #endif
  25
  26 /* Write formatted output into S, according to the format
  27    string FORMAT, writing no more than MAXLEN characters.  */
  28 /* VARARGS3 */
  29 int
  30 snprintf (s, maxlen, format)
  31       char *s;
  32       size_t maxlen;
  33       const char *format;
  34 {
  35   va_list arg;
  36   int done;
  37
  38   va_start (arg, format);
  39   done = vsnprintf (s, maxlen, format, arg);
  40   va_end (arg);
  41
  42   return done;
  43 }