xref: /titanic_41/usr/src/cmd/fs.d/pcfs/mount/mount.c (revision 29949e866e40b95795203f3ee46f44a197c946e4)
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 #pragma ident	"%Z%%M%	%I%	%E% SMI"
23 
24 /*
25  * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
26  * Use is subject to license terms.
27  */
28 
29 #include <sys/types.h>
30 #include <locale.h>
31 #include <stdio.h>
32 #include <time.h>
33 #include <signal.h>
34 #include <string.h>
35 #include <unistd.h>
36 #include <stdlib.h>
37 #include <errno.h>
38 #include <sys/mntent.h>
39 #include <sys/mnttab.h>
40 #include <sys/mount.h>
41 #include <sys/fs/pc_fs.h>
42 #include <fslib.h>
43 
44 extern int	daylight;
45 
46 /*
47  * The "hidden/nohidden" option is private. It is not approved for
48  * use (see PSARC/1996/443), which is why it is not in the usage message.
49  */
50 static int roflag = 0;
51 static char optbuf[MAX_MNTOPT_STR] = { '\0', };
52 static int optsize = 0;
53 
54 static struct pcfs_args tz;
55 
56 int
57 main(int argc, char *argv[])
58 {
59 	char *mnt_special;
60 	char *mnt_mountp;
61 	int c;
62 	char *myname;
63 	char typename[64];
64 	char *savedoptbuf;
65 	extern int optind;
66 	extern char *optarg;
67 	int error = 0;
68 	int verbose = 0;
69 	int mflg = 0;
70 	int qflg = 0;
71 	int optcnt = 0;
72 
73 	myname = strrchr(argv[0], '/');
74 	myname = myname ? myname + 1 : argv[0];
75 	(void) snprintf(typename, sizeof (typename), "%s_%s",
76 	    MNTTYPE_PCFS, myname);
77 	argv[0] = typename;
78 
79 	while ((c = getopt(argc, argv, "Vvmr?o:Oq")) != EOF) {
80 		switch (c) {
81 		case 'V':
82 		case 'v':
83 			verbose++;
84 			break;
85 		case '?':
86 			error++;
87 			break;
88 		case 'r':
89 			roflag++;
90 			break;
91 		case 'm':
92 			mflg |= MS_NOMNTTAB;
93 			break;
94 		case 'o':
95 			if (strlcpy(optbuf, optarg, sizeof (optbuf)) >=
96 			    sizeof (optbuf)) {
97 				(void) fprintf(stderr,
98 				    gettext("%s: Invalid argument: %s\n"),
99 				    myname, optarg);
100 				return (2);
101 			}
102 			optsize = strlen(optbuf);
103 			break;
104 		case 'O':
105 			mflg |= MS_OVERLAY;
106 			break;
107 		case 'q':
108 			qflg = 1;
109 			break;
110 		}
111 	}
112 
113 	if (verbose && !error) {
114 		char *optptr;
115 
116 		(void) fprintf(stderr, "%s", typename);
117 		for (optcnt = 1; optcnt < argc; optcnt++) {
118 			optptr = argv[optcnt];
119 			if (optptr)
120 				(void) fprintf(stderr, " %s", optptr);
121 		}
122 		(void) fprintf(stderr, "\n");
123 	}
124 
125 	if (argc - optind != 2 || error) {
126 		/*
127 		 * don't hint at options yet (none are really supported)
128 		 */
129 		(void) fprintf(stderr, gettext(
130 		    "Usage: %s [generic options] [-o suboptions] "
131 		    "special mount_point\n"), typename);
132 		(void) fprintf(stderr, gettext(
133 		    "\tpcfs-specific suboptions are:\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