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      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 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     28 
     29 #include <stdlib.h>
     30 #include <stdio.h>
     31 #include <string.h>
     32 #include <ctype.h>
     33 #include <unistd.h>
     34 #include <getopt.h>
     35 #include <libgen.h>
     36 
     37 #include <libshare.h>
     38 #include "sharemgr.h"
     39 #include <libintl.h>
     40 #include <locale.h>
     41 
     42 char *protocol = NULL;
     43 static int help = 0;
     44 
     45 static int run_command(char *, int, char **, char *, sa_handle_t);
     46 extern sa_command_t *sa_lookup(char *, char *);
     47 extern void sub_command_help(char *proto);
     48 
     49 static void
     50 global_help()
     51 {
     52 	(void) printf(gettext("usage: sharemgr [-h | <command> [options]]\n"));
     53 	sub_command_help(NULL);
     54 }
     55 
     56 int
     57 main(int argc, char *argv[])
     58 {
     59 	int c;
     60 	int rval;
     61 	char *command = NULL;
     62 	sa_handle_t handle;
     63 
     64 	/*
     65 	 * make sure locale and gettext domain is setup
     66 	 */
     67 	(void) setlocale(LC_ALL, "");
     68 	(void) textdomain(TEXT_DOMAIN);
     69 
     70 	/*
     71 	 * parse enough of command line to get protocol, if any.
     72 	 * Note that options need to come "after" the subcommand.
     73 	 */
     74 	command = basename(argv[0]);
     75 	if (strcmp(command, "share") != 0 && strcmp(command, "unshare") != 0) {
     76 		while ((c = getopt(argc, argv, "h?")) != EOF) {
     77 			switch (c) {
     78 			default:
     79 			case 'h':
     80 			case '?':
     81 				help = 1;
     82 				break;
     83 			}
     84 		}
     85 		if (argc == 1)
     86 			help = 1;
     87 	}
     88 
     89 	if (strcmp(command, "sharemgr") == 0) {
     90 		command = argv[optind];
     91 		argv++;
     92 		argc--;
     93 	}
     94 
     95 	if (help) {
     96 		/* no subcommand */
     97 		global_help();
     98 		exit(SA_OK);
     99 	}
    100 
    101 	/*
    102 	 * now have enough to parse rest of command line
    103 	 *
    104 	 * First, initialize the plugin architecture.
    105 	 * Plugins are needed in the event of a global help
    106 	 * request.
    107 	 *
    108 	 * reset optind to 1 so the parsing that takes place in
    109 	 * sa_init() will work correctly.
    110 	 */
    111 
    112 	optind = 1;
    113 	handle = sa_init(SA_INIT_SHARE_API);
    114 
    115 	/*
    116 	 * reset optind again since we will start parsing all over in
    117 	 * the sub-commands.
    118 	 */
    119 	optind = 1;
    120 	rval = run_command(command, argc, argv, protocol, handle);
    121 
    122 	sa_fini(handle);
    123 	return (rval);
    124 }
    125 
    126 static int
    127 run_command(char *command, int argc, char *argv[], char *proto,
    128 		sa_handle_t handle)
    129 {
    130 	sa_command_t *cmdvec;
    131 	int ret;
    132 
    133 	/*
    134 	 * To get here, we know there should be a command due to the
    135 	 * preprocessing done earlier.  Need to find the protocol
    136 	 * that is being affected. If no protocol, then it is ALL
    137 	 * protocols.
    138 	 *
    139 	 * We don't currently use the protocol here at this point. It
    140 	 * is left in as a placeholder for the future addition of
    141 	 * protocol specific sub-commands.
    142 	 *
    143 	 * Known sub-commands are handled at this level. An unknown
    144 	 * command will be passed down to the shared object that
    145 	 * actually implements it. We can do this since the semantics
    146 	 * of the common sub-commands is well defined.
    147 	 */
    148 
    149 	cmdvec = sa_lookup(command, proto);
    150 	if (cmdvec == NULL) {
    151 		(void) printf(gettext("command %s not found\n"), command);
    152 		exit(1);
    153 	}
    154 	/*
    155 	 * need to check priviledges and restrict what can be done
    156 	 * based on least priviledge and sub-command so pass this in
    157 	 * as a flag.
    158 	 */
    159 	ret = cmdvec->cmdfunc(handle, cmdvec->priv, argc, argv);
    160 	return (ret);
    161 }
    162