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/mdesc.h>
31 #include <sys/mdesc_impl.h>
32 
33 int
34 md_get_prop_data(md_t *ptr, mde_cookie_t node, char *namep,
35 	uint8_t **datap, int *lenp)
36 {
37 	mde_str_cookie_t prop_name;
38 	md_impl_t *mdp;
39 	mde_cookie_t	elem;
40 
41 	mdp = (md_impl_t *)ptr;
42 
43 	if (node == MDE_INVAL_ELEM_COOKIE) {
44 		return (-1);
45 	}
46 
47 	prop_name = md_find_name(ptr, namep);
48 	if (prop_name == MDE_INVAL_STR_COOKIE) {
49 		return (-1);
50 	}
51 
52 	elem = md_find_node_prop(mdp, node, prop_name, MDET_PROP_DAT);
53 
54 	if (elem != MDE_INVAL_ELEM_COOKIE) {
55 		md_element_t *mdep;
56 		mdep = &(mdp->mdep[(int)elem]);
57 
58 		*lenp = (int)MDE_PROP_DATA_LEN(mdep);
59 		*datap = mdp->datap+(int)MDE_PROP_DATA_OFFSET(mdep);
60 		return (0);
61 	}
62 
63 	return (-1);	/* no such property name */
64 }
65