xref: /illumos-gate/usr/src/common/mdesc/mdesc_findname.c (revision ddb365bfc9e868ad24ccdcb0dc91af18b10df082)
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 #include <sys/types.h>
28 
29 #ifdef _KERNEL
30 #include <sys/systm.h>
31 #else
32 #include <strings.h>
33 #endif
34 
35 #include <sys/mdesc.h>
36 #include <sys/mdesc_impl.h>
37 
38 mde_str_cookie_t
39 md_find_name(md_t *ptr, char *namep)
40 {
41 	int idx, len;
42 	md_impl_t *mdp;
43 
44 	mdp = (md_impl_t *)ptr;
45 
46 	/*
47 	 * At some point init should build a local hash table to
48 	 * speed these name searches ... for now use brute force
49 	 * because the machien descriptions are so small anyway.
50 	 */
51 
52 	for (idx = 0; idx < mdp->name_blk_size; idx += len) {
53 		char *p;
54 
55 		p = &(mdp->namep[idx]);
56 
57 		len = strlen(p)+1;
58 
59 		if (strcmp(p, namep) == 0)
60 			return ((mde_str_cookie_t)idx);
61 	}
62 
63 	return (MDE_INVAL_STR_COOKIE);
64 }
65