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
34 mde_cookie_t
md_find_node_prop(md_impl_t * mdp,mde_cookie_t node,mde_str_cookie_t prop_name,int tag_type)35 md_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