xref: /titanic_51/usr/src/cmd/dfs.cmds/sharemgr/shareutil.c (revision 546405c3c5a146c88705b0b02a469d1bd57f2b53)
16185db85Sdougm /*
26185db85Sdougm  * CDDL HEADER START
36185db85Sdougm  *
46185db85Sdougm  * The contents of this file are subject to the terms of the
56185db85Sdougm  * Common Development and Distribution License (the "License").
66185db85Sdougm  * You may not use this file except in compliance with the License.
76185db85Sdougm  *
86185db85Sdougm  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
96185db85Sdougm  * or http://www.opensolaris.org/os/licensing.
106185db85Sdougm  * See the License for the specific language governing permissions
116185db85Sdougm  * and limitations under the License.
126185db85Sdougm  *
136185db85Sdougm  * When distributing Covered Code, include this CDDL HEADER in each
146185db85Sdougm  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
156185db85Sdougm  * If applicable, add the following below this CDDL HEADER, with the
166185db85Sdougm  * fields enclosed by brackets "[]" replaced with your own identifying
176185db85Sdougm  * information: Portions Copyright [yyyy] [name of copyright owner]
186185db85Sdougm  *
196185db85Sdougm  * CDDL HEADER END
206185db85Sdougm  */
216185db85Sdougm 
226185db85Sdougm /*
23*546405c3Sdougm  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
246185db85Sdougm  * Use is subject to license terms.
256185db85Sdougm  */
266185db85Sdougm 
276185db85Sdougm #pragma ident	"%Z%%M%	%I%	%E% SMI"
286185db85Sdougm 
296185db85Sdougm #include <sys/types.h>
306185db85Sdougm #include "sharemgr.h"
316185db85Sdougm #include <stdlib.h>
326185db85Sdougm #include <stdio.h>
336185db85Sdougm #include <string.h>
346185db85Sdougm 
356185db85Sdougm /*
366185db85Sdougm  * Utility functions shared by sharemgr and sharectl.
376185db85Sdougm  */
386185db85Sdougm 
396185db85Sdougm /*
406185db85Sdougm  * add_opt(optlist, optarg, security?)
416185db85Sdougm  *	Add a new parsed option to the option list provided.
426185db85Sdougm  *	If the option is a security option, only add if we are
436185db85Sdougm  *	processing security options.
446185db85Sdougm  */
456185db85Sdougm int
466185db85Sdougm add_opt(struct options **optlistp, char *optarg, int unset)
476185db85Sdougm {
486185db85Sdougm 	struct options *newopt, *tmp, *optlist;
49*546405c3Sdougm 	char *optname;
50*546405c3Sdougm 	char *optvalue;
516185db85Sdougm 
526185db85Sdougm 	optlist = *optlistp;
536185db85Sdougm 	newopt = (struct options *)malloc(sizeof (struct options));
54*546405c3Sdougm 	if (newopt == NULL)
55*546405c3Sdougm 		return (OPT_ADD_MEMORY);
566185db85Sdougm 
576185db85Sdougm 	/* extract property/value pair */
586185db85Sdougm 	optname = optarg;
596185db85Sdougm 	if (!unset) {
606185db85Sdougm 		optvalue = strchr(optname, '=');
616185db85Sdougm 		if (optvalue == NULL) {
626185db85Sdougm 			free(newopt);
636185db85Sdougm 			return (OPT_ADD_SYNTAX);
646185db85Sdougm 		}
656185db85Sdougm 		*optvalue++ = '\0'; /* separate the halves */
666185db85Sdougm 	} else {
676185db85Sdougm 		optvalue = NULL;
686185db85Sdougm 	}
696185db85Sdougm 
706185db85Sdougm 	newopt->optname = optname;
716185db85Sdougm 	newopt->optvalue = optvalue;
726185db85Sdougm 	newopt->next = NULL;
736185db85Sdougm 	if (optlist == NULL) {
746185db85Sdougm 		optlist = newopt;
756185db85Sdougm 	} else {
766185db85Sdougm 		for (tmp = optlist; tmp->next != NULL;
776185db85Sdougm 		    tmp = tmp->next) {
78*546405c3Sdougm 			/*
79*546405c3Sdougm 			 * Check to see if this is a duplicate
80*546405c3Sdougm 			 * value. We want to replace the first
81*546405c3Sdougm 			 * instance with the second.
82*546405c3Sdougm 			 */
83*546405c3Sdougm 			if (strcmp(tmp->optname, optname) == 0) {
84*546405c3Sdougm 				tmp->optvalue = optvalue;
85*546405c3Sdougm 				free(newopt);
86*546405c3Sdougm 				goto done;
87*546405c3Sdougm 			}
886185db85Sdougm 		}
896185db85Sdougm 		tmp->next = newopt;
906185db85Sdougm 	}
91*546405c3Sdougm done:
926185db85Sdougm 	*optlistp = optlist;
936185db85Sdougm 	return (OPT_ADD_OK);
946185db85Sdougm }
95