libc/uuid/uuid_equal.c

1.2.8.2  plunky /*	$NetBSD: uuid_equal.c,v 1.2.8.2 2008/04/23 07:52:33 plunky Exp $	*/
1.2.8.2  plunky
1.2.8.2  plunky /*-
1.2.8.2  plunky  * Copyright (c) 2002 Marcel Moolenaar
1.2.8.2  plunky  * Copyright (c) 2002 Hiten Mahesh Pandya
1.2.8.2  plunky  * All rights reserved.
1.2.8.2  plunky  *
1.2.8.2  plunky  * Redistribution and use in source and binary forms, with or without
1.2.8.2  plunky  * modification, are permitted provided that the following conditions
1.2.8.2  plunky  * are met:
1.2.8.2  plunky  * 1. Redistributions of source code must retain the above copyright
1.2.8.2  plunky  *    notice, this list of conditions and the following disclaimer.
1.2.8.2  plunky  * 2. Redistributions in binary form must reproduce the above copyright
1.2.8.2  plunky  *    notice, this list of conditions and the following disclaimer in the
1.2.8.2  plunky  *    documentation and/or other materials provided with the distribution.
1.2.8.2  plunky  *
1.2.8.2  plunky  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1.2.8.2  plunky  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.2.8.2  plunky  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.2.8.2  plunky  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
1.2.8.2  plunky  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1.2.8.2  plunky  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
1.2.8.2  plunky  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1.2.8.2  plunky  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
1.2.8.2  plunky  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
1.2.8.2  plunky  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
1.2.8.2  plunky  * SUCH DAMAGE.
1.2.8.2  plunky  *
1.2.8.2  plunky  * $FreeBSD: src/lib/libc/uuid/uuid_equal.c,v 1.2 2003/08/08 19:18:43 marcel Exp $
1.2.8.2  plunky  */
1.2.8.2  plunky
1.2.8.2  plunky #include <sys/cdefs.h>
1.2.8.2  plunky #if defined(LIBC_SCCS) && !defined(lint)
1.2.8.2  plunky __RCSID("$NetBSD: uuid_equal.c,v 1.2.8.2 2008/04/23 07:52:33 plunky Exp $");
1.2.8.2  plunky #endif
1.2.8.2  plunky
1.2.8.2  plunky #include "namespace.h"
1.2.8.2  plunky
1.2.8.2  plunky #include <string.h>
1.2.8.2  plunky #include <uuid.h>
1.2.8.2  plunky
1.2.8.2  plunky /*
1.2.8.2  plunky  * uuid_equal() - compare for equality.
1.2.8.2  plunky  * See also:
1.2.8.2  plunky  *	http://www.opengroup.org/onlinepubs/009629399/uuid_equal.htm
1.2.8.2  plunky  */
1.2.8.2  plunky int32_t
1.2.8.2  plunky uuid_equal(const uuid_t *a, const uuid_t *b, uint32_t *status)
1.2.8.2  plunky {
1.2.8.2  plunky
1.2.8.2  plunky 	if (status != NULL)
1.2.8.2  plunky 		*status = uuid_s_ok;
1.2.8.2  plunky
1.2.8.2  plunky 	/* Deal with equal or NULL pointers. */
1.2.8.2  plunky 	if (a == b)
1.2.8.2  plunky 		return (1);
1.2.8.2  plunky 	if (a == NULL)
1.2.8.2  plunky 		return (uuid_is_nil(b, NULL));
1.2.8.2  plunky 	if (b == NULL)
1.2.8.2  plunky 		return (uuid_is_nil(a, NULL));
1.2.8.2  plunky
1.2.8.2  plunky 	/* Do a byte for byte comparison. */
1.2.8.2  plunky 	return ((memcmp(a, b, sizeof(uuid_t))) ? 0 : 1);
1.2.8.2  plunky }