1 /* $NetBSD: gss_oid_equal.c,v 1.2 2017/01/28 21:31:46 christos Exp $ */
2
3 /*
4 * Copyright (c) 2006 Kungliga Tekniska Högskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of the Institute nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #include "mech_locl.h"
37
38 /**
39 * Compare two GSS-API OIDs with each other.
40 *
41 * GSS_C_NO_OID matches nothing, not even it-self.
42 *
43 * @param a first oid to compare
44 * @param b second oid to compare
45 *
46 * @return non-zero when both oid are the same OID, zero when they are
47 * not the same.
48 *
49 * @ingroup gssapi
50 */
51
52 GSSAPI_LIB_FUNCTION int GSSAPI_LIB_CALL
gss_oid_equal(gss_const_OID a,gss_const_OID b)53 gss_oid_equal(gss_const_OID a, gss_const_OID b)
54 {
55 if (a == b && a != GSS_C_NO_OID)
56 return 1;
57 if (a == GSS_C_NO_OID || b == GSS_C_NO_OID || a->length != b->length)
58 return 0;
59 return memcmp(a->elements, b->elements, a->length) == 0;
60 }
61