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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1992, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright 2013 Garrett D'Amore <garrett@damore.org>
* Copyright 2016 Joyent, Inc.
*/
/*
* Compare strings ignoring case difference.
* returns: s1>s2: >0 s1==s2: 0 s1<s2: <0
* All letters are converted to the lowercase and compared.
*/
#include "lint.h"
#include <stdlib.h>
#include <wchar.h>
#include <locale.h>
#include "libc.h"
/* Legacy Sun interfaces */
#pragma weak wscasecmp = wcscasecmp
#pragma weak wsncasecmp = wcsncasecmp
int
wcscasecmp_l(const wchar_t *s1, const wchar_t *s2, locale_t loc)
{
if (s1 == s2)
return (0);
while (towlower_l(*s1, loc) == towlower_l(*s2, loc)) {
if (*s1 == 0)
return (0);
s1++;
s2++;
}
return (towlower_l(*s1, loc) - towlower_l(*s2, loc));
}
int
wcscasecmp(const wchar_t *s1, const wchar_t *s2)
{
return (wcscasecmp_l(s1, s2, uselocale(NULL)));
}
int
wcsncasecmp_l(const wchar_t *s1, const wchar_t *s2, size_t n, locale_t loc)
{
if (s1 == s2 || n == 0)
return (0);
while ((towlower_l(*s1, loc) == towlower_l(*s2, loc)) && --n) {
if (*s1 == 0)
return (0);
s1++;
s2++;
}
return (towlower_l(*s1, loc) - towlower_l(*s2, loc));
}
int
wcsncasecmp(const wchar_t *s1, const wchar_t *s2, size_t n)
{
return (wcsncasecmp_l(s1, s2, n, uselocale(NULL)));
}
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