xref: /titanic_50/usr/src/cmd/cmd-crypto/cryptoadm/adm_util.c (revision e5dcf7beb7c949f9234713d5818b581ec3825443)
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 <ctype.h>
30 #include <strings.h>
31 #include "cryptoadm.h"
32 
33 
34 /*
35  * Create one item of type mechlist_t with the mechanism name.  A null is
36  * returned to indicate that the storage space available is insufficient.
37  */
38 mechlist_t *
39 create_mech(char *name)
40 {
41 	mechlist_t *pres = NULL;
42 	char *first, *last;
43 
44 	if (name == NULL) {
45 		return (NULL);
46 	}
47 
48 	pres = malloc(sizeof (mechlist_t));
49 	if (pres == NULL) {
50 		cryptodebug("out of memory.");
51 		return (NULL);
52 	}
53 
54 	first = name;
55 	while (isspace(*first)) /* nuke leading whitespace */
56 	    first++;
57 	(void) strlcpy(pres->name, first, sizeof (pres->name));
58 
59 	last = strrchr(pres->name, '\0');
60 	last--;
61 	while (isspace(*last))  /* nuke trailing whitespace */
62 	    *last-- = '\0';
63 
64 	pres->next = NULL;
65 
66 	return (pres);
67 }
68 
69 
70 
71 void
72 free_mechlist(mechlist_t *plist)
73 {
74 	mechlist_t *pnext;
75 
76 	while (plist != NULL) {
77 		pnext = plist->next;
78 		free(plist);
79 		plist = pnext;
80 	}
81 }
82 
83 
84 
85 /*
86  * Check if the mechanism is in the mechanism list.
87  */
88 boolean_t
89 is_in_list(char *mechname, mechlist_t *plist)
90 {
91 	boolean_t found = B_FALSE;
92 
93 	if (mechname == NULL) {
94 		return (B_FALSE);
95 	}
96 
97 	while (plist != NULL) {
98 		if (strcmp(plist->name, mechname) == 0) {
99 			found = B_TRUE;
100 			break;
101 		}
102 		plist = plist->next;
103 	}
104 
105 	return (found);
106 }
107