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 (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #include <sys/types.h>
28 #include "sharemgr.h"
29 #include <stdlib.h>
30 #include <stdio.h>
31 #include <string.h>
32
33 /*
34 * Utility functions shared by sharemgr and sharectl.
35 */
36
37 /*
38 * add_opt(optlist, optarg, security?)
39 * Add a new parsed option to the option list provided.
40 * If the option is a security option, only add if we are
41 * processing security options.
42 */
43 int
add_opt(struct options ** optlistp,char * optarg,int unset)44 add_opt(struct options **optlistp, char *optarg, int unset)
45 {
46 struct options *newopt, *tmp, *optlist;
47 char *optname;
48 char *optvalue;
49
50 optlist = *optlistp;
51 newopt = (struct options *)malloc(sizeof (struct options));
52 if (newopt == NULL)
53 return (OPT_ADD_MEMORY);
54
55 /* extract property/value pair */
56 optname = optarg;
57 if (!unset) {
58 optvalue = strchr(optname, '=');
59 if (optvalue == NULL) {
60 free(newopt);
61 return (OPT_ADD_SYNTAX);
62 }
63 *optvalue++ = '\0'; /* separate the halves */
64 } else {
65 optvalue = NULL;
66 }
67
68 newopt->optname = optname;
69 newopt->optvalue = optvalue;
70 newopt->next = NULL;
71 if (optlist == NULL) {
72 optlist = newopt;
73 } else {
74 for (tmp = optlist; tmp->next != NULL;
75 tmp = tmp->next) {
76 /*
77 * Check to see if this is a duplicate
78 * value. We want to replace the first
79 * instance with the second.
80 */
81 if (strcmp(tmp->optname, optname) == 0) {
82 tmp->optvalue = optvalue;
83 free(newopt);
84 goto done;
85 }
86 }
87 tmp->next = newopt;
88 }
89 done:
90 *optlistp = optlist;
91 return (OPT_ADD_OK);
92 }
93