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  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.

    23  * Use is subject to license terms.

    24  */

    25 

    26 #pragma ident	"%Z%%M%	%I%	%E% SMI"

    27 

    28 #include <stdio.h>

    29 #include <stdlib.h>

    30 #include <string.h>

    31 #include <libintl.h>

    32 #include <errno.h>

    33 #include <sys/fstyp.h>

    34 #include <sys/fsid.h>

    35 #include <sys/mntent.h>

    36 #include <sys/mnttab.h>

    37 #include <sys/mount.h>

    38 #include <sys/signal.h>

    39 #include <sys/stat.h>

    40 #include <fslib.h>

    41 #include <locale.h>

    42 

    43 #define	RET_OK		0

    44 #define	RET_ERR		33

    45 #define	EXIT_MAGIC	2

    46 

    47 static void usage(void);

    48 

    49 static char  optbuf[MAX_MNTOPT_STR] = { '\0', };

    50 static int   optsize = 0;

    51 

    52 static char fstype[] = "sharefs";

    53 

    54 /*

    55  * usage: mount [-Ormq] [-o options] special mountp

    56  *

    57  * This mount program is exec'ed by /usr/sbin/mount if '-F sharefs' is

    58  * specified.

    59  */

    60 int

    61 main(int argc, char *argv[])

    62 {

    63 	int c;

    64 	char *special;		/* Entity being mounted */

    65 	char *mountp;		/* Entity being mounted on */

    66 	char *savedoptbuf;

    67 	char *myname;

    68 	char *typename;

    69 	int flags = 0;

    70 	int error_flag = 0;

    71 	int q_flag = 0;

    72 

    73 	int len;

    74 

    75 	(void) setlocale(LC_ALL, "");

    76 

    77 #if !defined(TEXT_DOMAIN)

    78 #define	TEXT_DOMAIN "SYS_TEST"

    79 #endif

    80 	(void) textdomain(TEXT_DOMAIN);

    81 

    82 

    83 	myname = strrchr(argv[0], '/');

    84 	myname = myname ? myname + 1 : argv[0];

    85 

    86 	len = strlen(fstype) + 1 + strlen(myname);

    87 	typename = malloc(len + 1);

    88 	if (!typename) {

    89 		(void) fprintf(stderr, gettext("%s: out of memory\n"),

    90 		    myname);

    91 		return (EXIT_MAGIC);

    92 	}

    93 

    94 	(void) snprintf(typename, len, "%s %s", fstype, myname);

    95 	argv[0] = typename;

    96 

    97 	while ((c = getopt(argc, argv, "o:rmOq")) != EOF) {

    98 		switch (c) {

    99 		case '?':

   100 			error_flag = 1;

   101 			break;

   102 

   103 		case 'o':

   104 			if (strlcpy(optbuf, optarg, sizeof (optbuf)) >=

   105 			    sizeof (optbuf)) {

   106 				(void) fprintf(stderr,

   107 				    gettext("%s: Invalid argument: %s\n"),

   108 				    myname, optarg);

   109 				free(typename);

   110 				return (EXIT_MAGIC);

   111 			}

   112 			optsize = strlen(optbuf);

   113 			break;

   114 		case 'O':

   115 			flags |= MS_OVERLAY;

   116 			break;

   117 		case 'r':

   118 			flags |= MS_RDONLY;

   119 			break;

   120 

   121 		case 'm':

   122 			flags |= MS_NOMNTTAB;

   123 			break;

   124 

   125 		case 'q':

   126 			q_flag = 1;

   127 			break;

   128 

   129 		default:

   130 			usage();

   131 		}

   132 	}

   133 	if ((argc - optind != 2) || error_flag) {

   134 		usage();

   135 	}

   136 	special = argv[argc - 2];

   137 	mountp = argv[argc - 1];

   138 

   139 	if ((savedoptbuf = strdup(optbuf)) == NULL) {

   140 		(void) fprintf(stderr, gettext("%s: out of memory\n"),

   141 		    myname);

   142 		free(typename);

   143 		exit(EXIT_MAGIC);

   144 	}

   145 	if (mount(special, mountp, flags | MS_OPTIONSTR, fstype, NULL, 0,

   146 	    optbuf, MAX_MNTOPT_STR)) {

   147 		(void) fprintf(stderr, "mount: ");

   148 		perror(special);

   149 		free(typename);

   150 		exit(RET_ERR);

   151 	}

   152 	if (optsize && !q_flag)

   153 		cmp_requested_to_actual_options(savedoptbuf, optbuf,

   154 		    special, mountp);

   155 	free(typename);

   156 	return (RET_OK);

   157 }

   158 

   159 static void

   160 usage(void)

   161 {

   162 	(void) fprintf(stderr,

   163 	    gettext("Usage: mount [-Ormq] [-o options] special mountpoint\n"));

   164 	exit(RET_ERR);

   165 }