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      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 
     30 #include <sys/types.h>
     31 #ifdef _KERNEL
     32 #include <sys/systm.h>
     33 #else
     34 #include <strings.h>
     35 #endif
     36 
     37 #include <sys/mdesc.h>
     38 #include <sys/mdesc_impl.h>
     39 
     40 int
     41 md_get_prop_val(md_t *ptr, mde_cookie_t node, char *namep, uint64_t *valp)
     42 {
     43 	mde_str_cookie_t prop_name;
     44 	md_impl_t	*mdp;
     45 	mde_cookie_t	elem;
     46 
     47 	mdp = (md_impl_t *)ptr;
     48 
     49 	if (node == MDE_INVAL_ELEM_COOKIE) {
     50 		return (-1);
     51 	}
     52 
     53 	prop_name = md_find_name(ptr, namep);
     54 	if (prop_name == MDE_INVAL_STR_COOKIE) {
     55 		return (-1);
     56 	}
     57 
     58 	elem = md_find_node_prop(mdp, node, prop_name, MDET_PROP_VAL);
     59 
     60 	if (elem != MDE_INVAL_ELEM_COOKIE) {
     61 		md_element_t *mdep;
     62 		mdep = &(mdp->mdep[(int)elem]);
     63 
     64 		*valp = MDE_PROP_VALUE(mdep);
     65 		return (0);
     66 	}
     67 
     68 	return (-1);	/* no such property name */
     69 }
     70