[apple/libc.git] / string / strcasecmp-fbsd.c

/*
 * Copyright (c) 1987, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)strcasecmp.c	8.1 (Berkeley) 6/4/93";
#endif /* LIBC_SCCS and not lint */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/lib/libc/string/strcasecmp.c,v 1.6 2002/08/30 15:40:01 robert Exp $");

#include "xlocale_private.h"

#include <strings.h>
#include <ctype.h>

typedef unsigned char u_char;

int
strcasecmp_l(s1, s2, loc)
	const char *s1, *s2;
	locale_t loc;
{
	const u_char
			*us1 = (const u_char *)s1,
			*us2 = (const u_char *)s2;

	NORMALIZE_LOCALE(loc);
	while (tolower_l(*us1, loc) == tolower_l(*us2++, loc))
		if (*us1++ == '\0')
			return (0);
	return (tolower_l(*us1, loc) - tolower_l(*--us2, loc));
}

int
strcasecmp(s1, s2)
	const char *s1, *s2;
{
	return strcasecmp_l(s1, s2, __current_locale());
}

int
strncasecmp_l(s1, s2, n, loc)
	const char *s1, *s2;
	size_t n;
	locale_t loc;
{
	NORMALIZE_LOCALE(loc);
	if (n != 0) {
		const u_char
				*us1 = (const u_char *)s1,
				*us2 = (const u_char *)s2;

		do {
			if (tolower_l(*us1, loc) != tolower_l(*us2++, loc))
				return (tolower_l(*us1, loc) - tolower_l(*--us2, loc));
			if (*us1++ == '\0')
				break;
		} while (--n != 0);
	}
	return (0);
}

int
strncasecmp(s1, s2, n)
	const char *s1, *s2;
	size_t n;
{
	return strncasecmp_l(s1, s2, n, __current_locale());
}
Commit	Line	Data
224c7076 A	1	/*
224c7076 A	2	* Copyright (c) 1987, 1993
e9ce8d39 A	3	* The Regents of the University of California. All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	* 3. All advertising materials mentioning features or use of this software
	14	* must display the following acknowledgement:
	15	* This product includes software developed by the University of
	16	* California, Berkeley and its contributors.
	17	* 4. Neither the name of the University nor the names of its contributors
	18	* may be used to endorse or promote products derived from this software
	19	* without specific prior written permission.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	24	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	31	* SUCH DAMAGE.
	32	*/
	33
5b2abdfb	34	#if defined(LIBC_SCCS) && !defined(lint)
224c7076	35	static char sccsid[] = "@(#)strcasecmp.c 8.1 (Berkeley) 6/4/93";
5b2abdfb	36	#endif /* LIBC_SCCS and not lint */
9385eb3d	37	#include <sys/cdefs.h>
224c7076 A	38	__FBSDID("$FreeBSD: src/lib/libc/string/strcasecmp.c,v 1.6 2002/08/30 15:40:01 robert Exp $");
	39
	40	#include "xlocale_private.h"
e9ce8d39	41
9385eb3d	42	#include <strings.h>
224c7076 A	43	#include <ctype.h>
	44
	45	typedef unsigned char u_char;
	46
	47	int
	48	strcasecmp_l(s1, s2, loc)
	49	const char s1, s2;
	50	locale_t loc;
	51	{
	52	const u_char
	53	us1 = (const u_char )s1,
	54	us2 = (const u_char )s2;
	55
	56	NORMALIZE_LOCALE(loc);
	57	while (tolower_l(us1, loc) == tolower_l(us2++, loc))
	58	if (*us1++ == '\0')
	59	return (0);
	60	return (tolower_l(us1, loc) - tolower_l(--us2, loc));
	61	}
	62
	63	int
	64	strcasecmp(s1, s2)
	65	const char s1, s2;
	66	{
	67	return strcasecmp_l(s1, s2, __current_locale());
	68	}
e9ce8d39	69
9385eb3d	70	int
224c7076 A	71	strncasecmp_l(s1, s2, n, loc)
	72	const char s1, s2;
	73	size_t n;
	74	locale_t loc;
e9ce8d39	75	{
224c7076 A	76	NORMALIZE_LOCALE(loc);
	77	if (n != 0) {
	78	const u_char
	79	us1 = (const u_char )s1,
	80	us2 = (const u_char )s2;
e9ce8d39	81
224c7076 A	82	do {
	83	if (tolower_l(us1, loc) != tolower_l(us2++, loc))
	84	return (tolower_l(us1, loc) - tolower_l(--us2, loc));
	85	if (*us1++ == '\0')
	86	break;
	87	} while (--n != 0);
	88	}
	89	return (0);
	90	}
	91
	92	int
	93	strncasecmp(s1, s2, n)
	94	const char s1, s2;
	95	size_t n;
	96	{
	97	return strncasecmp_l(s1, s2, n, __current_locale());
e9ce8d39	98	}