xref: /onnv-gate/usr/src/common/mdesc/mdesc_getpropdata.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
28*0Sstevel@tonic-gate 
29*0Sstevel@tonic-gate #include <sys/types.h>
30*0Sstevel@tonic-gate #include <sys/mdesc.h>
31*0Sstevel@tonic-gate #include <sys/mdesc_impl.h>
32*0Sstevel@tonic-gate 
33*0Sstevel@tonic-gate int
md_get_prop_data(md_t * ptr,mde_cookie_t node,char * namep,uint8_t ** datap,int * lenp)34*0Sstevel@tonic-gate md_get_prop_data(md_t *ptr, mde_cookie_t node, char *namep,
35*0Sstevel@tonic-gate 	uint8_t **datap, int *lenp)
36*0Sstevel@tonic-gate {
37*0Sstevel@tonic-gate 	mde_str_cookie_t prop_name;
38*0Sstevel@tonic-gate 	md_impl_t *mdp;
39*0Sstevel@tonic-gate 	mde_cookie_t	elem;
40*0Sstevel@tonic-gate 
41*0Sstevel@tonic-gate 	mdp = (md_impl_t *)ptr;
42*0Sstevel@tonic-gate 
43*0Sstevel@tonic-gate 	if (node == MDE_INVAL_ELEM_COOKIE) {
44*0Sstevel@tonic-gate 		return (-1);
45*0Sstevel@tonic-gate 	}
46*0Sstevel@tonic-gate 
47*0Sstevel@tonic-gate 	prop_name = md_find_name(ptr, namep);
48*0Sstevel@tonic-gate 	if (prop_name == MDE_INVAL_STR_COOKIE) {
49*0Sstevel@tonic-gate 		return (-1);
50*0Sstevel@tonic-gate 	}
51*0Sstevel@tonic-gate 
52*0Sstevel@tonic-gate 	elem = md_find_node_prop(mdp, node, prop_name, MDET_PROP_DAT);
53*0Sstevel@tonic-gate 
54*0Sstevel@tonic-gate 	if (elem != MDE_INVAL_ELEM_COOKIE) {
55*0Sstevel@tonic-gate 		md_element_t *mdep;
56*0Sstevel@tonic-gate 		mdep = &(mdp->mdep[(int)elem]);
57*0Sstevel@tonic-gate 
58*0Sstevel@tonic-gate 		*lenp = (int)MDE_PROP_DATA_LEN(mdep);
59*0Sstevel@tonic-gate 		*datap = mdp->datap+(int)MDE_PROP_DATA_OFFSET(mdep);
60*0Sstevel@tonic-gate 		return (0);
61*0Sstevel@tonic-gate 	}
62*0Sstevel@tonic-gate 
63*0Sstevel@tonic-gate 	return (-1);	/* no such property name */
64*0Sstevel@tonic-gate }
65