xref: /titanic_41/usr/src/cmd/fs.d/pcfs/mount/mount.c (revision 0eb822a1c0c2bea495647510b75f77f0e57633eb)
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 #pragma ident	"%Z%%M%	%I%	%E% SMI"
22 
23 /*
24  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
25  * Use is subject to license terms.
26  */
27 
28 #include <sys/types.h>
29 #include <locale.h>
30 #include <stdio.h>
31 #include <time.h>
32 #include <signal.h>
33 #include <string.h>
34 #include <unistd.h>
35 #include <stdlib.h>
36 #include <errno.h>
37 #include <sys/mntent.h>
38 #include <sys/mnttab.h>
39 #include <sys/mount.h>
40 #include <sys/fs/pc_fs.h>
41 #include <fslib.h>
42 
43 extern int	daylight;
44 
45 /*
46  * The "hidden/nohidden" option is private. It is not approved for
47  * use (see PSARC/1996/443), which is why it is not in the usage message.
48  */
49 static int roflag = 0;
50 static char optbuf[MAX_MNTOPT_STR] = { '\0', };
51 static int optsize = 0;
52 
53 static struct pcfs_args tz;
54 
55 int
56 main(int argc, char *argv[])
57 {
58 	char *mnt_special;
59 	char *mnt_mountp;
60 	int c;
61 	char *myname;
62 	char typename[64];
63 	char *savedoptbuf;
64 	extern int optind;
65 	extern char *optarg;
66 	int error = 0;
67 	int verbose = 0;
68 	int mflg = 0;
69 	int qflg = 0;
70 	int optcnt = 0;
71 
72 	myname = strrchr(argv[0], '/');
73 	myname = myname ? myname + 1 : argv[0];
74 	(void) snprintf(typename, sizeof (typename), "%s_%s",
75 	    MNTTYPE_PCFS, myname);
76 	argv[0] = typename;
77 
78 	while ((c = getopt(argc, argv, "Vvmr?o:Oq")) != EOF) {
79 		switch (c) {
80 		case 'V':
81 		case 'v':
82 			verbose++;
83 			break;
84 		case '?':
85 			error++;
86 			break;
87 		case 'r':
88 			roflag++;
89 			break;
90 		case 'm':
91 			mflg |= MS_NOMNTTAB;
92 			break;
93 		case 'o':
94 			if (strlcpy(optbuf, optarg, sizeof (optbuf)) >=
95 			    sizeof (optbuf)) {
96 				(void) fprintf(stderr,
97 				    gettext("%s: Invalid argument: %s\n"),
98 				    myname, optarg);
99 				return (2);
100 			}
101 			optsize = strlen(optbuf);
102 			break;
103 		case 'O':
104 			mflg |= MS_OVERLAY;
105 			break;
106 		case 'q':
107 			qflg = 1;
108 			break;
109 		}
110 	}
111 
112 	if (verbose && !error) {
113 		char *optptr;
114 
115 		(void) fprintf(stderr, "%s", typename);
116 		for (optcnt = 1; optcnt < argc; optcnt++) {
117 			optptr = argv[optcnt];
118 			if (optptr)
119 				(void) fprintf(stderr, " %s", optptr);
120 		}
121 		(void) fprintf(stderr, "\n");
122 	}
123 
124 	if (argc - optind != 2 || error) {
125 		/*
126 		 * don't hint at options yet (none are really supported)
127 		 */
128 		(void) fprintf(stderr, gettext(
129 		    "Usage: %s [generic options] [-o suboptions] "
130 		    "special mount_point\n"), typename);
131 		(void) fprintf(stderr, gettext(
132 		    "\tpcfs-specific suboptions are:\n"
133 		    "\t     clamptime,noclamptime\n"
134 		    "\t     foldcase,nofoldcase\n"));
135 		exit(32);
136 	}
137 
138 	mnt_special = argv[optind++];
139 	mnt_mountp = argv[optind++];
140 
141 	(void) tzset();
142 	tz.secondswest = timezone;
143 	tz.dsttime = daylight;
144 	mflg |= MS_DATA;
145 	if (roflag)
146 		mflg |= MS_RDONLY;
147 
148 	if ((savedoptbuf = strdup(optbuf)) == NULL) {
149 		(void) fprintf(stderr, gettext("%s: out of memory\n"),
150 		    myname);
151 		exit(2);
152 	}
153 	(void) signal(SIGHUP,  SIG_IGN);
154 	(void) signal(SIGQUIT, SIG_IGN);
155 	(void) signal(SIGINT,  SIG_IGN);
156 
157 	if (verbose) {
158 		(void) fprintf(stderr, "mount(%s, \"%s\", %d, %s",
159 		    mnt_special, mnt_mountp, mflg, MNTTYPE_PCFS);
160 	}
161 	if (mount(mnt_special, mnt_mountp, mflg | MS_OPTIONSTR, MNTTYPE_PCFS,
162 	    (char *)&tz, sizeof (struct pcfs_args), optbuf, MAX_MNTOPT_STR)) {
163 		if (errno == EBUSY) {
164 			(void) fprintf(stderr, gettext(
165 			    "mount: %s is already mounted or %s is busy\n"),
166 			    mnt_special, mnt_mountp);
167 		} else if (errno == EINVAL) {
168 			(void) fprintf(stderr, gettext(
169 			    "mount: %s is not a DOS filesystem.\n"),
170 			    mnt_special);
171 		} else {
172 			perror("mount");
173 		}
174 		exit(32);
175 	}
176 
177 	if (optsize && !qflg)
178 		cmp_requested_to_actual_options(savedoptbuf, optbuf,
179 		    mnt_special, mnt_mountp);
180 	return (0);
181 }
182