xref: /titanic_41/usr/src/cmd/fs.d/volcopy.c (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
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 	<limits.h>
35 #include	<errno.h>
36 #include	<stdarg.h>
37 #include	<sys/vfstab.h>
38 
39 #include	<locale.h>
40 
41 static int perr(const char *fmt, ...);
42 
43 #define	ARGV_MAX	1024
44 #define	FSTYPE_MAX	8
45 
46 #define	VFS_PATH	"/usr/lib/fs"
47 
48 #define	EQ(X,Y,Z)	!strncmp(X,Y,Z)
49 #define	NEWARG()\
50 	(nargv[nargc++] = &argv[1][0],\
51 	 nargc == ARGV_MAX ? perr("volcopy:  too many arguments.\n") : 1)
52 
53 extern char	*default_fstype();
54 
55 char	*nargv[ARGV_MAX];
56 int	nargc = 2;
57 
58 char	vfstab[] = VFSTAB;
59 
60 main(argc, argv)
61 	int	argc;
62 	char	**argv;
63 {
64 	register char	cc;
65 	register int	ii, Vflg = 0, Fflg = 0;
66 	register char	*fstype = NULL;
67 	register FILE	*fd;
68 	struct vfstab	vget, vref;
69 
70 	(void) setlocale(LC_ALL,"");
71 #if !defined(TEXT_DOMAIN)
72 #define TEXT_DOMAIN "SYS_TEST"
73 #endif
74 	(void) textdomain(TEXT_DOMAIN);
75 
76 	while (argc > 1 && argv[1][0] == '-') {
77 		if (EQ(argv[1], "-a", 2)) {
78 			NEWARG();
79 		} else if (EQ(argv[1], "-e", 2)) {
80 			NEWARG();
81 		} else if (EQ(argv[1], "-s", 2)) {
82 			NEWARG();
83 		} else if (EQ(argv[1], "-y", 2)) {
84 			NEWARG();
85 		} else if (EQ(argv[1], "-buf", 4)) {
86 			NEWARG();
87 		} else if (EQ(argv[1], "-bpi", 4)) {
88 			NEWARG();
89 			if ((cc = argv[1][4]) < '0' || cc > '9') {
90 				++argv;
91 				--argc;
92 				NEWARG();
93 			}
94 		} else if (EQ(argv[1], "-feet", 5)) {
95 			NEWARG();
96 			if ((cc = argv[1][5]) < '0' || cc > '9') {
97 				++argv;
98 				--argc;
99 				NEWARG();
100 			}
101 		} else if (EQ(argv[1], "-reel", 5)) {
102 			NEWARG();
103 			if ((cc = argv[1][5]) < '0' || cc > '9') {
104 				++argv;
105 				--argc;
106 				NEWARG();
107 			}
108 		} else if (EQ(argv[1], "-r", 2)) { /* 3b15 only */
109 			NEWARG();
110 			if ((cc = argv[1][2]) < '0' || cc > '9') {
111 				++argv;
112 				--argc;
113 				NEWARG();
114 			}
115 		} else if (EQ(argv[1], "-block", 6)) { /* 3b15 only */
116 			NEWARG();
117 			if ((cc = argv[1][6]) < '0' || cc > '9') {
118 				++argv;
119 				--argc;
120 				NEWARG();
121 			}
122 		} else if (EQ(argv[1], "-V", 2)) {
123 			Vflg++;
124 		} else if (EQ(argv[1], "-F", 2)) {
125 			if (Fflg)
126 				perr("volcopy: More than one FSType specified.\nUsage:\nvolcopy [-F FSType] [-V] [current_options] [-o specific_options] operands\n");
127 			Fflg++;
128 			if (argv[1][2] == '\0') {
129 				++argv;
130 				--argc;
131 				if (argc == 1)
132 					perr("Usage:\nvolcopy [-F FSType] [-V] [current_options] [-o specific_options] operands\n");
133 				fstype = &argv[1][0];
134 			} else
135 				fstype = &argv[1][2];
136 			if (strlen(fstype) > FSTYPE_MAX)
137 				perr("volcopy: FSType %s exceeds %d characters\n", fstype, FSTYPE_MAX);
138 		} else if (EQ(argv[1], "-o", 2)) {
139 			NEWARG();
140 			if (argv[1][2] == '\0') {
141 				++argv;
142 				--argc;
143 				NEWARG();
144 			}
145 			if (Fflg && strlen(fstype) > FSTYPE_MAX)
146 				perr("volcopy: FSType %s exceeds %d characters.\nUsage:\nvolcopy [-F FSType] [-V] [current_options] [-o specific_options] operands\n",fstype, FSTYPE_MAX);
147 		} else if (EQ(argv[1], "-nosh", 5)) { /* 3b15 only */
148 			NEWARG();
149 		} else if (EQ(argv[1], "-?", 2)) {
150 			if (Fflg) {
151 				nargv[2] = "-?";
152 				doexec(fstype, nargv);
153 			}
154 			else {
155 				perr("Usage:\nvolcopy [-F FSType] [-V] [current_options] [-o specific_options] operands\n");
156 		}
157 		} else
158 			perr("<%s> invalid option\nUsage:\nvolcopy [-F FSType] [-V] [current_options] [-o specific_options] operands\n",argv[1]);
159 		++argv;
160 		--argc;
161 	} /* argv[1][0] == '-' */
162 
163 	if (argc != 6) /* if mandatory fields not present */
164 		perr("Usage:\nvolcopy [-F FSType] [-V] [current_options] [-o specific_options] operands\n");
165 
166 	if (nargc + 5 >= ARGV_MAX)
167 		perr("volcopy: too many arguments.\n");
168 
169 	for (ii = 0; ii < 5; ii++)
170 		nargv[nargc++] = argv[ii+1];
171 
172 	if (fstype == NULL) {
173 		if ((fd = fopen(vfstab, "r")) == NULL)
174 			perr("volcopy: cannot open %s.\n", vfstab);
175 
176 		vfsnull(&vref);
177 		vref.vfs_special = argv[2];
178 		ii = getvfsany(fd, &vget, &vref);
179 		if (ii == -1) {
180 			rewind(fd);
181 			vfsnull(&vref);
182 			vref.vfs_fsckdev = argv[2];
183 			ii = getvfsany(fd, &vget, &vref);
184 		}
185 
186 		fclose(fd);
187 
188 		switch (ii) {
189 		case -1:
190 			fstype = default_fstype(argv[2]);
191 			break;
192 		case 0:
193 			fstype = vget.vfs_fstype;
194 			break;
195 		case VFS_TOOLONG:
196 			perr("volcopy: line in vfstab exceeds %d characters\n", VFS_LINE_MAX-2);
197 			break;
198 		case VFS_TOOFEW:
199 			perr("volcopy: line in vfstab has too few entries\n");
200 			break;
201 		case VFS_TOOMANY:
202 			perr("volcopy: line in vfstab has too many entries\n");
203 			break;
204 		}
205 	}
206 
207 	if (Vflg) {
208 		printf("volcopy -F %s", fstype);
209 		for (ii = 2; nargv[ii]; ii++)
210 			printf(" %s", nargv[ii]);
211 		printf("\n");
212 		exit(0);
213 	}
214 
215 	doexec(fstype, nargv);
216 }
217 
218 doexec(fstype, nargv)
219 	char	*fstype, *nargv[];
220 {
221 	char	full_path[PATH_MAX];
222 	char	*vfs_path = VFS_PATH;
223 
224 	/* build the full pathname of the fstype dependent command. */
225 	sprintf(full_path, "%s/%s/volcopy", vfs_path, fstype);
226 
227 	/* set the new argv[0] to the filename */
228 	nargv[1] = "volcopy";
229 
230 	/* Try to exec the fstype dependent portion of the mount. */
231 	execv(full_path, &nargv[1]);
232 	if (errno == EACCES) {
233 		perr("volcopy: cannot execute %s - permission denied\n", full_path);
234 		exit(1);
235 	}
236 	if (errno == ENOEXEC) {
237 		nargv[0] = "sh";
238 		nargv[1] = full_path;
239 		execv("/sbin/sh", &nargv[0]);
240 	}
241 	perr("volcopy: Operation not applicable for FSType %s\n", fstype);
242 	exit(1);
243 }
244 
245 /*
246  * perr:  Print error messages.
247  */
248 
249 static int
250 perr(const char *fmt, ...)
251 {
252 	va_list ap;
253 
254 	va_start(ap, fmt);
255 	(void)vfprintf(stderr, gettext(fmt), ap);
256 	va_end(ap);
257 	exit(1);
258 	return (0);
259 }
260