strnlen.c

来自「Intercom 是一个 Unix系统上灵活的语音传输软件。支持标准音频压缩比如」· C语言 代码 · 共 37 行

/*  strnlen.c -- substitution for the strnlen Glibc function
    Copyright (C) 2001-2003  Shane Wegner
    This file is part of Intercom.

    Intercom is free software; you can redistribute it and/or modify it
    under the terms of version 2 of the GNU General Public License as
    published by the Free Software Foundation.

    Intercom 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
    General Public License for more details.

    You should have received a copy of version 2 of the GNU General Public
    License along with Intercom; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

    To contact the author, please send email to [e-mail].
    */

/* $Id: strnlen.c,v 1.4 2003/02/13 20:22:49 shane Exp $ */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <string.h>

size_t strnlen(const char *s, size_t maxlen)
{
size_t n = 0;
while(s[n])
if (n == maxlen)
return n;
return n - 1;
}