1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#pragma ident	"%Z%%M%	%I%	%E% SMI"
28
29#include <sys/types.h>
30#include <sys/param.h>
31#include <sys/mdesc.h>
32#include <sys/mdesc_impl.h>
33
34mde_cookie_t
35md_find_node_prop(md_impl_t *mdp,
36	mde_cookie_t node,
37	mde_str_cookie_t prop_name,
38	int tag_type)
39{
40	md_element_t *mdep;
41	int idx;
42
43	if (node == MDE_INVAL_ELEM_COOKIE ||
44	    prop_name == MDE_INVAL_STR_COOKIE) {
45		return (MDE_INVAL_ELEM_COOKIE);
46	}
47
48	idx = (int)node;
49	mdep = &(mdp->mdep[idx]);
50
51		/* Skip over any empty elements */
52	while (MDE_TAG(mdep) == MDET_NULL) {
53		idx++;
54		mdep++;
55	}
56
57		/* see if cookie is infact a node */
58	if (MDE_TAG(mdep) != MDET_NODE) {
59		return (MDE_INVAL_ELEM_COOKIE);
60	}
61
62	/*
63	 * Simply walk the elements in the node
64	 * looking for a property with a matching name.
65	 */
66
67	for (idx++, mdep++; MDE_TAG(mdep) != MDET_NODE_END; idx++, mdep++) {
68		if (MDE_TAG(mdep) == tag_type) {
69			if (MDE_NAME(mdep) == prop_name) {
70				return ((mde_cookie_t)idx);
71			}
72		}
73	}
74
75	return (MDE_INVAL_ELEM_COOKIE);	/* no such property name */
76}
77