xref: /illumos-gate/usr/src/cmd/fs.d/udfs/mount/mount.c (revision 12fb9219923f41528f673d4f31667db2c3f103ff)
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 #include <ctype.h>
28 #include <string.h>
29 #include <stdio.h>
30 #include <stdlib.h>	/* for getopt(3) */
31 #include <signal.h>
32 #include <locale.h>
33 #include <fslib.h>
34 #include <errno.h>
35 #include <sys/types.h>
36 #include <sys/mnttab.h>
37 #include <sys/mount.h>
38 
39 #define	FSTYPE		"udfs"
40 #define	NAME_MAX	64
41 
42 static int roflag = 0;
43 static int mflag = 0;
44 static int Oflag = 0;
45 static int qflag = 0;
46 
47 static char  optbuf[MAX_MNTOPT_STR] = { '\0', };
48 static int   optsize = 0;
49 
50 static char fstype[] = FSTYPE;
51 
52 static char typename[NAME_MAX], *myname;
53 
54 static void do_mount(char *, char *, int);
55 static void rpterr(char *, char *);
56 static void usage(void);
57 
58 int
59 main(int argc, char **argv)
60 {
61 	char *special, *mountp;
62 	int flags = 0;
63 	int c;
64 
65 	(void) setlocale(LC_ALL, "");
66 
67 #if !defined(TEXT_DOMAIN)
68 #define	TEXT_DOMAIN "SYS_TEST"
69 #endif
70 	(void) textdomain(TEXT_DOMAIN);
71 
72 	myname = strrchr(argv[0], '/');
73 	if (myname) {
74 		myname++;
75 	} else {
76 		myname = argv[0];
77 	}
78 	(void) snprintf(typename, sizeof (typename), "%s %s", fstype, myname);
79 	argv[0] = typename;
80 
81 	/* check for proper arguments */
82 
83 	while ((c = getopt(argc, argv, "mo:rOq")) != EOF) {
84 		switch (c) {
85 		case 'm':
86 			mflag++;
87 			break;
88 		case 'o':
89 			if (strlcpy(optbuf, optarg, sizeof (optbuf)) >=
90 			    sizeof (optbuf)) {
91 				(void) fprintf(stderr,
92 				    gettext("%s: Invalid argument: %s\n"),
93 				    myname, optarg);
94 				return (2);
95 			}
96 			optsize = strlen(optbuf);
97 			break;
98 		case 'r':
99 			roflag++;
100 			break;
101 		case 'O':
102 			Oflag++;
103 			break;
104 		case 'q':
105 			qflag = 1;
106 			break;
107 		default :
108 			break;
109 		}
110 	}
111 
112 	if ((argc - optind) != 2)
113 		usage();
114 
115 	special = argv[optind++];
116 	mountp = argv[optind++];
117 
118 	if (roflag)
119 		flags = MS_RDONLY;
120 
121 	if (optsize > 0) {
122 		struct mnttab m;
123 
124 		m.mnt_mntopts = optbuf;
125 		if (hasmntopt(&m, "m"))
126 			mflag++;
127 	}
128 
129 	flags |= (Oflag ? MS_OVERLAY : 0);
130 	flags |= (mflag ? MS_NOMNTTAB : 0);
131 
132 
133 	/*
134 	 *	Perform the mount.
135 	 *	Only the low-order bit of "roflag" is used by the system
136 	 *	calls (to denote read-only or read-write).
137 	 */
138 	do_mount(special, mountp, flags);
139 	return (0);
140 }
141 
142 
143 static void
144 rpterr(char *bs, char *mp)
145 {
146 	switch (errno) {
147 	case EPERM:
148 		(void) fprintf(stderr,
149 			gettext("%s: insufficient privileges\n"), myname);
150 		break;
151 	case ENXIO:
152 		(void) fprintf(stderr,
153 			gettext("%s: %s no such device\n"), myname, bs);
154 		break;
155 	case ENOTDIR:
156 		(void) fprintf(stderr,
157 			gettext("%s: %s not a directory\n\t"
158 				"or a component of %s is not a directory\n"),
159 		    myname, mp, bs);
160 		break;
161 	case ENOENT:
162 		(void) fprintf(stderr,
163 			gettext("%s: %s or %s, no such file or directory\n"),
164 			myname, bs, mp);
165 		break;
166 	case EINVAL:
167 		(void) fprintf(stderr,
168 			gettext("%s: %s is not an udfs file system.\n"),
169 			typename, 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,
178 			gettext("%s: %s not a block device\n"), myname, bs);
179 		break;
180 	case EROFS:
181 		(void) fprintf(stderr,
182 			gettext("%s: %s write-protected\n"),
183 			myname, bs);
184 		break;
185 	case ENOSPC:
186 		(void) fprintf(stderr,
187 			gettext("%s: %s is corrupted. needs checking\n"),
188 			myname, bs);
189 		break;
190 	default:
191 		perror(myname);
192 		(void) fprintf(stderr,
193 			gettext("%s: cannot mount %s\n"), myname, bs);
194 	}
195 }
196 
197 
198 static void
199 do_mount(char *special, char *mountp, int flag)
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, flag | MS_DATA | MS_OPTIONSTR,
209 	    fstype, NULL, 0, optbuf, MAX_MNTOPT_STR) == -1) {
210 		rpterr(special, mountp);
211 		exit(31+2);
212 	}
213 	if (optsize && !qflag)
214 		cmp_requested_to_actual_options(savedoptbuf, optbuf,
215 		    special, mountp);
216 }
217 
218 
219 static void
220 usage(void)
221 {
222 	(void) fprintf(stdout, gettext("udfs usage:\n"
223 			"mount [-F udfs] [generic options] "
224 			"[-o suboptions] {special | mount_point}\n"));
225 	(void) fprintf(stdout, gettext("\tsuboptions are: \n"
226 			"\t	ro,rw,nosuid,remount,m\n"));
227 	(void) fprintf(stdout, gettext(
228 			"\t	only one of ro, rw can be "
229 			"used at the same time\n"));
230 	(void) fprintf(stdout, gettext(
231 			"\t	remount can be used only with rw\n"));
232 
233 	exit(32);
234 }
235