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/*
* Copyright (c) 1997-2006 Motoyuki Kasahara
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <sys/types.h>
/*
* Compare strings.
* Cases in the strings are insensitive.
*/
int
strcasecmp(const char *string1, const char *string2)
{
const unsigned char *string1_p = (const unsigned char *)string1;
const unsigned char *string2_p = (const unsigned char *)string2;
int c1, c2;
while (*string1_p != '\0') {
if ('a' <= *string1_p && *string1_p <= 'z')
c1 = *string1_p - ('a' - 'A');
else
c1 = *string1_p;
if ('a' <= *string2_p && *string2_p <= 'z')
c2 = *string2_p - ('a' - 'A');
else
c2 = *string2_p;
if (c1 != c2)
return c1 - c2;
string1_p++;
string2_p++;
}
return -(*string2_p);
}
/*
* Compare strings within `n' characters.
* Cases in the strings are insensitive.
*/
int
strncasecmp(const char *string1, const char *string2, size_t n)
{
const unsigned char *string1_p = (const unsigned char *)string1;
const unsigned char *string2_p = (const unsigned char *)string2;
size_t i = n;
int c1, c2;
if (i <= 0)
return 0;
while (*string1_p != '\0') {
if ('a' <= *string1_p && *string1_p <= 'z')
c1 = *string1_p - ('a' - 'A');
else
c1 = *string1_p;
if ('a' <= *string2_p && *string2_p <= 'z')
c2 = *string2_p - ('a' - 'A');
else
c2 = *string2_p;
if (c1 != c2)
return c1 - c2;
string1_p++;
string2_p++;
i--;
if (i <= 0)
return 0;
}
return -(*string2_p);
}
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