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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, 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 2004 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  */
     26 
     27 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
     28 /*	  All Rights Reserved  	*/
     29 
     30 
     31 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     32 
     33 #include	<stdio.h>
     34 #include	<stdlib.h>
     35 #include	<signal.h>
     36 #include	<string.h>
     37 #include	<unistd.h>
     38 #include	<errno.h>
     39 #include	<sys/mnttab.h>
     40 #include	<sys/mount.h>
     41 #include	<sys/types.h>
     42 #include	<locale.h>
     43 #include	<fslib.h>
     44 
     45 #define	NAME_MAX	64	/* sizeof "fstype myname" */
     46 
     47 #define	FSTYPE		"fd"
     48 
     49 static char  optbuf[MAX_MNTOPT_STR] = { '\0', };
     50 static int   optsize = 0;
     51 
     52 static int	flags = 0;
     53 static int	mflg = 0;
     54 static int	qflg = 0;
     55 
     56 static char	typename[NAME_MAX], *myname;
     57 static char	fstype[] = FSTYPE;
     58 
     59 static void usage(void);
     60 static void do_mount(char *, char *, int);
     61 
     62 int
     63 main(int argc, char **argv)
     64 {
     65 	char	*special, *mountp;
     66 	int	errflag = 0;
     67 	int	cc;
     68 
     69 	(void) setlocale(LC_ALL, "");
     70 
     71 #if !defined(TEXT_DOMAIN)
     72 #define	TEXT_DOMAIN "SYS_TEST"
     73 #endif
     74 	(void) textdomain(TEXT_DOMAIN);
     75 
     76 	myname = strrchr(argv[0], '/');
     77 	if (myname)
     78 		myname++;
     79 	else
     80 		myname = argv[0];
     81 	(void) snprintf(typename, sizeof (typename), "%s %s", fstype, myname);
     82 	argv[0] = typename;
     83 
     84 	/*
     85 	 *	check for proper arguments
     86 	 */
     87 
     88 	while ((cc = getopt(argc, argv, "o:rmOq")) != -1)
     89 		switch (cc) {
     90 		case 'r':
     91 			if (flags & MS_RDONLY)
     92 				errflag = 1;
     93 			else
     94 				flags |= MS_RDONLY;
     95 			break;
     96 		case 'O':
     97 			flags |= MS_OVERLAY;
     98 			break;
     99 		case 'q':
    100 			qflg = 1;
    101 			break;
    102 		case 'm':
    103 			mflg++;
    104 			break;
    105 		case 'o':
    106 			if (strlcpy(optbuf, optarg, sizeof (optbuf)) >=
    107 			    sizeof (optbuf)) {
    108 				(void) fprintf(stderr,
    109 				    gettext("%s: Invalid argument: %s\n"),
    110 				    myname, optarg);
    111 				return (2);
    112 			}
    113 			optsize = strlen(optbuf);
    114 			break;
    115 		default:
    116 		case '?':
    117 			errflag = 1;
    118 			break;
    119 		}
    120 
    121 	/*
    122 	 *	There must be at least 2 more arguments, the
    123 	 *	special file and the directory.
    124 	 */
    125 
    126 	if (((argc - optind) != 2) || (errflag))
    127 		usage();
    128 
    129 	special = argv[optind++];
    130 	mountp = argv[optind++];
    131 
    132 	/*
    133 	 *	Perform the mount.
    134 	 *	Only the low-order bit of "flags" is used by the system
    135 	 *	calls (to denote read-only or read-write).
    136 	 */
    137 	if (mflg)
    138 		flags |= MS_NOMNTTAB;
    139 	do_mount(special, mountp, flags);
    140 	exit(0);
    141 	/* NOTREACHED */
    142 }
    143 
    144 static void
    145 rpterr(char *bs, char *mp)
    146 {
    147 	switch (errno) {
    148 	case EPERM:
    149 		(void) fprintf(stderr,
    150 		    gettext("%s: insufficient privileges\n"), myname);
    151 		break;
    152 	case ENXIO:
    153 		(void) fprintf(stderr,
    154 			gettext("%s: %s no such device\n"), myname, bs);
    155 		break;
    156 	case ENOTDIR:
    157 		(void) fprintf(stderr,
    158 		    gettext("%s: %s not a directory\n"
    159 		    "\tor a component of %s is not a directory\n"),
    160 			myname, mp, bs);
    161 		break;
    162 	case ENOENT:
    163 		(void) fprintf(stderr,
    164 			gettext("%s: %s or %s, no such file or directory\n"),
    165 			myname, bs, mp);
    166 		break;
    167 	case EINVAL:
    168 		(void) fprintf(stderr, gettext("%s: %s is not this fstype.\n"),
    169 			myname, bs);
    170 		break;
    171 	case EBUSY:
    172 		(void) fprintf(stderr,
    173 			gettext("%s: %s is already mounted or %s is busy\n"),
    174 			myname, bs, mp);
    175 		break;
    176 	case ENOTBLK:
    177 		(void) fprintf(stderr, gettext("%s: %s not a block device\n"),
    178 			myname, bs);
    179 		break;
    180 	case EROFS:
    181 		(void) fprintf(stderr,
    182 			gettext("%s: %s write-protected\n"), myname, bs);
    183 		break;
    184 	case ENOSPC:
    185 		(void) fprintf(stderr,
    186 			gettext("%s: the state of %s is not okay\n"
    187 			    "\tand it was attempted to mount read/write\n"),
    188 			myname, bs);
    189 		break;
    190 	default:
    191 		perror(myname);
    192 		(void) fprintf(stderr, gettext("%s: cannot mount %s\n"),
    193 		    myname, bs);
    194 	}
    195 }
    196 
    197 
    198 static void
    199 do_mount(char *special, char *mountp, int rflag)
    200 {
    201 	char *savedoptbuf;
    202 
    203 	if ((savedoptbuf = strdup(optbuf)) == NULL) {
    204 		(void) fprintf(stderr, gettext("%s: out of memory\n"),
    205 		    myname);
    206 		exit(2);
    207 	}
    208 	if (mount(special, mountp, rflag | MS_OPTIONSTR,
    209 		fstype, NULL, 0, optbuf, MAX_MNTOPT_STR)) {
    210 		rpterr(special, mountp);
    211 		exit(2);
    212 	}
    213 	if (optsize && !qflg)
    214 		cmp_requested_to_actual_options(savedoptbuf, optbuf,
    215 		    special, mountp);
    216 }
    217 
    218 
    219 static void
    220 usage(void)
    221 {
    222 	(void) fprintf(stderr,
    223 		gettext("Usage: %s [-rmOq] [-o specific_options]"
    224 		" special mount_point\n"), myname);
    225 	exit(1);
    226 }
    227