11573Srgrimes/*
21573Srgrimes * Copyright (c) 1987, 1993
31573Srgrimes *	The Regents of the University of California.  All rights reserved.
41573Srgrimes *
5227753Stheraven * Copyright (c) 2011 The FreeBSD Foundation
6227753Stheraven * All rights reserved.
7227753Stheraven * Portions of this software were developed by David Chisnall
8227753Stheraven * under sponsorship from the FreeBSD Foundation.
9227753Stheraven *
101573Srgrimes * Redistribution and use in source and binary forms, with or without
111573Srgrimes * modification, are permitted provided that the following conditions
121573Srgrimes * are met:
131573Srgrimes * 1. Redistributions of source code must retain the above copyright
141573Srgrimes *    notice, this list of conditions and the following disclaimer.
151573Srgrimes * 2. Redistributions in binary form must reproduce the above copyright
161573Srgrimes *    notice, this list of conditions and the following disclaimer in the
171573Srgrimes *    documentation and/or other materials provided with the distribution.
18251069Semaste * 3. Neither the name of the University nor the names of its contributors
191573Srgrimes *    may be used to endorse or promote products derived from this software
201573Srgrimes *    without specific prior written permission.
211573Srgrimes *
221573Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
231573Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
241573Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
251573Srgrimes * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
261573Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
271573Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
281573Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
291573Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
301573Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
311573Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
321573Srgrimes * SUCH DAMAGE.
331573Srgrimes */
341573Srgrimes
3577117Sobrien#if defined(LIBC_SCCS) && !defined(lint)
3677117Sobrienstatic char sccsid[] = "@(#)strcasecmp.c	8.1 (Berkeley) 6/4/93";
3777117Sobrien#endif /* LIBC_SCCS and not lint */
3886170Sobrien#include <sys/cdefs.h>
3986170Sobrien__FBSDID("$FreeBSD$");
4077117Sobrien
41102624Srobert#include <strings.h>
4216250Sache#include <ctype.h>
43227753Stheraven#include "xlocale_private.h"
441573Srgrimes
451573Srgrimesint
46227753Stheravenstrcasecmp_l(const char *s1, const char *s2, locale_t locale)
471573Srgrimes{
4892889Sobrien	const u_char
491573Srgrimes			*us1 = (const u_char *)s1,
501573Srgrimes			*us2 = (const u_char *)s2;
51227753Stheraven	FIX_LOCALE(locale);
521573Srgrimes
53227753Stheraven	while (tolower_l(*us1, locale) == tolower_l(*us2++, locale))
541573Srgrimes		if (*us1++ == '\0')
551573Srgrimes			return (0);
56227753Stheraven	return (tolower_l(*us1, locale) - tolower_l(*--us2, locale));
571573Srgrimes}
58227753Stheravenint
59227753Stheravenstrcasecmp(const char *s1, const char *s2)
60227753Stheraven{
61227753Stheraven	return strcasecmp_l(s1, s2, __get_locale());
62227753Stheraven}
631573Srgrimes
641573Srgrimesint
65227753Stheravenstrncasecmp_l(const char *s1, const char *s2, size_t n, locale_t locale)
661573Srgrimes{
67227753Stheraven	FIX_LOCALE(locale);
68228202Seadler	if (n != 0) {
69228202Seadler		const u_char
70228202Seadler				*us1 = (const u_char *)s1,
71228202Seadler				*us2 = (const u_char *)s2;
721573Srgrimes
73228202Seadler		do {
74228202Seadler			if (tolower_l(*us1, locale) != tolower_l(*us2++, locale))
75228202Seadler				return (tolower_l(*us1, locale) - tolower_l(*--us2, locale));
76228202Seadler			if (*us1++ == '\0')
77228202Seadler				break;
78228202Seadler		} while (--n != 0);
79228202Seadler	}
801573Srgrimes	return (0);
811573Srgrimes}
82227753Stheraven
83227753Stheravenint
84227753Stheravenstrncasecmp(const char *s1, const char *s2, size_t n)
85227753Stheraven{
86227753Stheraven	return strncasecmp_l(s1, s2, n, __get_locale());
87227753Stheraven}
88