xref: /illumos-gate/usr/src/cmd/fs.d/udfs/mount/mount.c (revision 7c478bd9)
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 2003 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 <ctype.h>
30 #include <string.h>
31 #include <stdio.h>
32 #include <stdlib.h>	/* for getopt(3) */
33 #include <signal.h>
34 #include <locale.h>
35 #include <fslib.h>
36 #include <errno.h>
37 #include <sys/types.h>
38 #include <sys/mnttab.h>
39 #include <sys/mount.h>
40 
41 #define	FSTYPE		"udfs"
42 #define	NAME_MAX	64
43 
44 static int roflag = 0;
45 static int mflag = 0;
46 static int Oflag = 0;
47 static int qflag = 0;
48 
49 static char  optbuf[MAX_MNTOPT_STR] = { '\0', };
50 static int   optsize = 0;
51 
52 static char fstype[] = FSTYPE;
53 
54 static char typename[NAME_MAX], *myname;
55 
56 static void do_mount(char *, char *, int);
57 static void rpterr(char *, char *);
58 static void usage(void);
59 
60 int
main(int argc,char ** argv)61 main(int argc, char **argv)
62 {
63 	char *special, *mountp;
64 	int flags = 0;
65 	int c;
66 
67 	(void) setlocale(LC_ALL, "");
68 
69 #if !defined(TEXT_DOMAIN)
70 #define	TEXT_DOMAIN "SYS_TEST"
71 #endif
72 	(void) textdomain(TEXT_DOMAIN);
73 
74 	myname = strrchr(argv[0], '/');
75 	if (myname) {
76 		myname++;
77 	} else {
78 		myname = argv[0];
79 	}
80 	(void) snprintf(typename, sizeof (typename), "%s %s", fstype, myname);
81 	argv[0] = typename;
82 
83 	/* check for proper arguments */
84 
85 	while ((c = getopt(argc, argv, "mo:rOq")) != EOF) {
86 		switch (c) {
87 		case 'm':
88 			mflag++;
89 			break;
90 		case 'o':
91 			if (strlcpy(optbuf, optarg, sizeof (optbuf)) >=
92 			    sizeof (optbuf)) {
93 				(void) fprintf(stderr,
94 				    gettext("%s: Invalid argument: %s\n"),
95 				    myname, optarg);
96 				return (2);
97 			}
98 			optsize = strlen(optbuf);
99 			break;
100 		case 'r':
101 			roflag++;
102 			break;
103 		case 'O':
104 			Oflag++;
105 			break;
106 		case 'q':
107 			qflag = 1;
108 			break;
109 		default :
110 			break;
111 		}
112 	}
113 
114 	if ((argc - optind) != 2)
115 		usage();
116 
117 	special = argv[optind++];
118 	mountp = argv[optind++];
119 
120 	if (roflag)
121 		flags = MS_RDONLY;
122 
123 	if (optsize > 0) {
124 		struct mnttab m;
125 
126 		m.mnt_mntopts = optbuf;
127 		if (hasmntopt(&m, "m"))
128 			mflag++;
129 	}
130 
131 	flags |= (Oflag ? MS_OVERLAY : 0);
132 	flags |= (mflag ? MS_NOMNTTAB : 0);
133 
134 
135 	/*
136 	 *	Perform the mount.
137 	 *	Only the low-order bit of "roflag" is used by the system
138 	 *	calls (to denote read-only or read-write).
139 	 */
140 	do_mount(special, mountp, flags);
141 	return (0);
142 }
143 
144 
145 static void
rpterr(char * bs,char * mp)146 rpterr(char *bs, char *mp)
147 {
148 	switch (errno) {
149 	case EPERM:
150 		(void) fprintf(stderr,
151 			gettext("%s: insufficient privileges\n"), myname);
152 		break;
153 	case ENXIO:
154 		(void) fprintf(stderr,
155 			gettext("%s: %s no such device\n"), myname, bs);
156 		break;
157 	case ENOTDIR:
158 		(void) fprintf(stderr,
159 			gettext("%s: %s not a directory\n\t"
160 				"or a component of %s is not a directory\n"),
161 		    myname, mp, bs);
162 		break;
163 	case ENOENT:
164 		(void) fprintf(stderr,
165 			gettext("%s: %s or %s, no such file or directory\n"),
166 			myname, bs, mp);
167 		break;
168 	case EINVAL:
169 		(void) fprintf(stderr,
170 			gettext("%s: %s is not an udfs file system.\n"),
171 			typename, bs);
172 		break;
173 	case EBUSY:
174 		(void) fprintf(stderr,
175 			gettext("%s: %s is already mounted or %s is busy\n"),
176 			myname, bs, mp);
177 		break;
178 	case ENOTBLK:
179 		(void) fprintf(stderr,
180 			gettext("%s: %s not a block device\n"), myname, bs);
181 		break;
182 	case EROFS:
183 		(void) fprintf(stderr,
184 			gettext("%s: %s write-protected\n"),
185 			myname, bs);
186 		break;
187 	case ENOSPC:
188 		(void) fprintf(stderr,
189 			gettext("%s: %s is corrupted. needs checking\n"),
190 			myname, bs);
191 		break;
192 	default:
193 		perror(myname);
194 		(void) fprintf(stderr,
195 			gettext("%s: cannot mount %s\n"), myname, bs);
196 	}
197 }
198 
199 
200 static void
do_mount(char * special,char * mountp,int flag)201 do_mount(char *special, char *mountp, int flag)
202 {
203 	char *savedoptbuf;
204 
205 	if ((savedoptbuf = strdup(optbuf)) == NULL) {
206 		(void) fprintf(stderr, gettext("%s: out of memory\n"),
207 		    myname);
208 		exit(2);
209 	}
210 	if (mount(special, mountp, flag | MS_DATA | MS_OPTIONSTR,
211 	    fstype, NULL, 0, optbuf, MAX_MNTOPT_STR) == -1) {
212 		rpterr(special, mountp);
213 		exit(31+2);
214 	}
215 	if (optsize && !qflag)
216 		cmp_requested_to_actual_options(savedoptbuf, optbuf,
217 		    special, mountp);
218 }
219 
220 
221 static void
usage(void)222 usage(void)
223 {
224 	(void) fprintf(stdout, gettext("udfs usage:\n"
225 			"mount [-F udfs] [generic options] "
226 			"[-o suboptions] {special | mount_point}\n"));
227 	(void) fprintf(stdout, gettext("\tsuboptions are: \n"
228 			"\t	ro,rw,nosuid,remount,m\n"));
229 	(void) fprintf(stdout, gettext(
230 			"\t	only one of ro, rw can be "
231 			"used at the same time\n"));
232 	(void) fprintf(stdout, gettext(
233 			"\t	remount can be used only with rw\n"));
234 
235 	exit(32);
236 }
237