root/libglibc/snprintf.c(264.html)

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DEFINITIONS

This source file includes following definitions.
  1. snprintf

/* Copyright (C) 1991, 1995, 1997, 1998 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
   Boston, MA  02110-1301  USA. */
#ifdef HAVE_CONFIG_H #include <config.h> #endif #include <stdarg.h> #include <stdio.h> /* * drived from GNU C Library and modified at 2001/10/09. * * This is the simplest version of snprintf, that is, it just exits after * writing over MAXLEN characters. It is used in the system which doesn't * have snprintf(3). */
#ifndef HAVE_SNPRINTF /* Write formatted output into S, according to the format string FORMAT, writing no more than MAXLEN characters. */
/* VARARGS3 */
int snprintf (char *s, size_t maxlen, const char *format, ...) { va_list arg; int done; va_start (arg, format); /* done = __vsnprintf (s, maxlen, format, arg); */
done = vsprintf (s, format, arg); if (done >= maxlen) { fprintf(stderr, "This program exit because vsprintf(3) destroy memory.\n"); fprintf(stderr, "You should install snprintf(3) instead.\n"); exit(1); } va_end (arg); return done; } #endif /* HAVE_SNPRINTF */

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