xref: /illumos-gate/usr/src/common/mdesc/mdesc_findname.c (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
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 
32 #ifdef _KERNEL
33 #include <sys/systm.h>
34 #else
35 #include <strings.h>
36 #endif
37 
38 #include <sys/mdesc.h>
39 #include <sys/mdesc_impl.h>
40 
41 mde_str_cookie_t
42 md_find_name(md_t *ptr, char *namep)
43 {
44 	int idx, len;
45 	md_impl_t *mdp;
46 
47 	mdp = (md_impl_t *)ptr;
48 
49 	/*
50 	 * At some point init should build a local hash table to
51 	 * speed these name searches ... for now use brute force
52 	 * because the machien descriptions are so small anyway.
53 	 */
54 
55 	for (idx = 0; idx < mdp->name_blk_size; idx += len) {
56 		char *p;
57 
58 		p = &(mdp->namep[idx]);
59 
60 		len = strlen(p)+1;
61 
62 		if (strcmp(p, namep) == 0)
63 			return ((mde_str_cookie_t)idx);
64 	}
65 
66 	return (MDE_INVAL_STR_COOKIE);
67 }
68