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mirror of https://git.FreeBSD.org/src.git synced 2024-12-14 10:09:48 +00:00
freebsd/lib/libc/string/strcasecmp.c
Ed Maste 5b5fa75acf libc: drop "All rights reserved" from Foundation copyrights
This has already been done for most files that have the Foundation as
the only listed copyright holder.  Do it now for files that list
multiple copyright holders, but have the Foundation copyright in its own
section.

Sponsored by:	The FreeBSD Foundation
2022-08-04 16:57:50 -04:00

90 lines
2.9 KiB
C

/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 1987, 1993
* The Regents of the University of California. All rights reserved.
*
* Copyright (c) 2011 The FreeBSD Foundation
*
* Portions of this software were developed by David Chisnall
* under sponsorship from the FreeBSD Foundation.
*
* 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 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("$FreeBSD$");
#include <strings.h>
#include <ctype.h>
#include "xlocale_private.h"
int
strcasecmp_l(const char *s1, const char *s2, locale_t locale)
{
const u_char
*us1 = (const u_char *)s1,
*us2 = (const u_char *)s2;
FIX_LOCALE(locale);
while (tolower_l(*us1, locale) == tolower_l(*us2++, locale))
if (*us1++ == '\0')
return (0);
return (tolower_l(*us1, locale) - tolower_l(*--us2, locale));
}
int
strcasecmp(const char *s1, const char *s2)
{
return strcasecmp_l(s1, s2, __get_locale());
}
int
strncasecmp_l(const char *s1, const char *s2, size_t n, locale_t locale)
{
FIX_LOCALE(locale);
if (n != 0) {
const u_char
*us1 = (const u_char *)s1,
*us2 = (const u_char *)s2;
do {
if (tolower_l(*us1, locale) != tolower_l(*us2++, locale))
return (tolower_l(*us1, locale) - tolower_l(*--us2, locale));
if (*us1++ == '\0')
break;
} while (--n != 0);
}
return (0);
}
int
strncasecmp(const char *s1, const char *s2, size_t n)
{
return strncasecmp_l(s1, s2, n, __get_locale());
}