strncmp.c

UBOOT源码,希望能给大家一点帮助,费了好大心思弄来的.

/*
 * strncmp.c: compare two strings
 *
 * Copyright (C) 2001  Erik Mouw ([e-mail])
 *
 * $Id: strncmp.c,v 1.2 2002/01/06 17:04:36 erikm Exp $
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#ident "$Id: strncmp.c,v 1.2 2002/01/06 17:04:36 erikm Exp $"

#ifdef HAVE_CONFIG_H
# include <blob/config.h>
#endif

#include <blob/util.h>




int strncmp(const char *s1, const char *s2, size_t maxlen) 
{
	int i;

	for(i = 0; i < maxlen; i++) {
		if(s1[i] != s2[i])
			return ((int) s1[i]) - ((int) s2[i]);
		if(s1[i] == 0)
			return 0;
	}

	return 0;
}