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/* $Id: strncasecmp.c,v 1.6 2009/06/03 01:10:52 ellson Exp $ $Revision: 1.6 $ */
/* vim:set shiftwidth=4 ts=8: */
/**********************************************************
* This software is part of the graphviz package *
* http://www.graphviz.org/ *
* *
* Copyright (c) 1994-2004 AT&T Corp. *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Corp. *
* *
* Information and Software Systems Research *
* AT&T Research, Florham Park NJ *
**********************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include <ctype.h>
int strncasecmp(const char *s1, const char *s2, unsigned int n)
{
if (n == 0)
return 0;
while ((n-- != 0)
&& (tolower(*(unsigned char *) s1) ==
tolower(*(unsigned char *) s2))) {
if (n == 0 || *s1 == '\0' || *s2 == '\0')
return 0;
s1++;
s2++;
}
return tolower(*(unsigned char *) s1) - tolower(*(unsigned char *) s2);
}
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