1 |
|
|
/* $OpenBSD: uuid_equal.c,v 1.2 2015/09/10 18:13:46 guenther Exp $ */ |
2 |
|
|
/* $NetBSD: uuid_equal.c,v 1.2 2008/04/23 07:52:32 plunky Exp $ */ |
3 |
|
|
|
4 |
|
|
/* |
5 |
|
|
* Copyright (c) 2002 Marcel Moolenaar |
6 |
|
|
* Copyright (c) 2002 Hiten Mahesh Pandya |
7 |
|
|
* All rights reserved. |
8 |
|
|
* |
9 |
|
|
* Redistribution and use in source and binary forms, with or without |
10 |
|
|
* modification, are permitted provided that the following conditions |
11 |
|
|
* are met: |
12 |
|
|
* 1. Redistributions of source code must retain the above copyright |
13 |
|
|
* notice, this list of conditions and the following disclaimer. |
14 |
|
|
* 2. Redistributions in binary form must reproduce the above copyright |
15 |
|
|
* notice, this list of conditions and the following disclaimer in the |
16 |
|
|
* documentation and/or other materials provided with the distribution. |
17 |
|
|
* |
18 |
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
19 |
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
20 |
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
21 |
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
22 |
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
23 |
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
24 |
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
25 |
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
26 |
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
27 |
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
28 |
|
|
* SUCH DAMAGE. |
29 |
|
|
* |
30 |
|
|
* $FreeBSD: src/lib/libc/uuid/uuid_equal.c,v 1.2 2003/08/08 19:18:43 marcel Exp $ |
31 |
|
|
*/ |
32 |
|
|
|
33 |
|
|
#include <string.h> |
34 |
|
|
#include <uuid.h> |
35 |
|
|
|
36 |
|
|
/* |
37 |
|
|
* uuid_equal() - compare for equality. |
38 |
|
|
* See also: |
39 |
|
|
* http://www.opengroup.org/onlinepubs/009629399/uuid_equal.htm |
40 |
|
|
*/ |
41 |
|
|
int32_t |
42 |
|
|
uuid_equal(const uuid_t *a, const uuid_t *b, uint32_t *status) |
43 |
|
|
{ |
44 |
|
|
if (status != NULL) |
45 |
|
|
*status = uuid_s_ok; |
46 |
|
|
|
47 |
|
|
/* Deal with equal or NULL pointers. */ |
48 |
|
|
if (a == b) |
49 |
|
|
return (1); |
50 |
|
|
if (a == NULL) |
51 |
|
|
return (uuid_is_nil(b, NULL)); |
52 |
|
|
if (b == NULL) |
53 |
|
|
return (uuid_is_nil(a, NULL)); |
54 |
|
|
|
55 |
|
|
/* Do a byte for byte comparison. */ |
56 |
|
|
return ((memcmp(a, b, sizeof(uuid_t))) ? 0 : 1); |
57 |
|
|
} |