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1227625a SP |
1 | /* |
2 | * Ported to Linux's Second Extended File System as part of the | |
3 | * dump and restore backup suit | |
b45f51d6 SP |
4 | * Remy Card <card@Linux.EU.Org>, 1994-1997 |
5 | * Stelian Pop <pop@cybercable.fr>, 1999 | |
1227625a SP |
6 | * |
7 | */ | |
8 | ||
9 | /* | |
10 | * Copyright (c) 1983, 1993 | |
11 | * The Regents of the University of California. All rights reserved. | |
12 | * | |
13 | * Redistribution and use in source and binary forms, with or without | |
14 | * modification, are permitted provided that the following conditions | |
15 | * are met: | |
16 | * 1. Redistributions of source code must retain the above copyright | |
17 | * notice, this list of conditions and the following disclaimer. | |
18 | * 2. Redistributions in binary form must reproduce the above copyright | |
19 | * notice, this list of conditions and the following disclaimer in the | |
20 | * documentation and/or other materials provided with the distribution. | |
21 | * 3. All advertising materials mentioning features or use of this software | |
22 | * must display the following acknowledgement: | |
23 | * This product includes software developed by the University of | |
24 | * California, Berkeley and its contributors. | |
25 | * 4. Neither the name of the University nor the names of its contributors | |
26 | * may be used to endorse or promote products derived from this software | |
27 | * without specific prior written permission. | |
28 | * | |
29 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
30 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
31 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
32 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
33 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
34 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
35 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
36 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
37 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
38 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
39 | * SUCH DAMAGE. | |
ec387a12 SP |
40 | * |
41 | * $Id: main.c,v 1.5 1999/10/11 13:31:13 stelian Exp $ | |
1227625a SP |
42 | */ |
43 | ||
1227625a | 44 | #include <sys/param.h> |
1227625a | 45 | #include <sys/stat.h> |
b45f51d6 | 46 | #include <errno.h> |
1227625a SP |
47 | |
48 | #ifdef __linux__ | |
49 | #include <linux/ext2_fs.h> | |
50 | #include <bsdcompat.h> | |
b45f51d6 SP |
51 | #include <signal.h> |
52 | #include <string.h> | |
1227625a SP |
53 | #else /* __linux__ */ |
54 | #include <ufs/ufs/dinode.h> | |
1227625a SP |
55 | #endif /* __linux__ */ |
56 | #include <protocols/dumprestore.h> | |
57 | ||
ddd2ef55 | 58 | #include <compaterr.h> |
1227625a SP |
59 | #include <stdio.h> |
60 | #include <stdlib.h> | |
1227625a SP |
61 | #include <unistd.h> |
62 | ||
63 | #ifdef __linux__ | |
64 | #include <ext2fs/ext2fs.h> | |
65 | #include <getopt.h> | |
66 | #endif | |
67 | ||
68 | #include "pathnames.h" | |
69 | #include "restore.h" | |
70 | #include "extern.h" | |
71 | ||
72 | int bflag = 0, cvtflag = 0, dflag = 0, vflag = 0, yflag = 0; | |
73 | int hflag = 1, mflag = 1, Nflag = 0; | |
b45f51d6 SP |
74 | int uflag = 0; |
75 | int dokerberos = 0; | |
1227625a SP |
76 | char command = '\0'; |
77 | long dumpnum = 1; | |
78 | long volno = 0; | |
79 | long ntrec; | |
80 | char *dumpmap; | |
81 | char *usedinomap; | |
82 | ino_t maxino; | |
83 | time_t dumptime; | |
84 | time_t dumpdate; | |
85 | FILE *terminal; | |
ddd2ef55 | 86 | char *tmpdir; |
1227625a SP |
87 | int compare_ignore_not_found; |
88 | char *filesys = NULL; | |
1227625a SP |
89 | |
90 | #ifdef __linux__ | |
91 | char *__progname; | |
92 | #endif | |
93 | ||
94 | static void obsolete __P((int *, char **[])); | |
95 | static void usage __P((void)); | |
96 | ||
97 | int | |
ddd2ef55 | 98 | main(int argc, char *argv[]) |
1227625a SP |
99 | { |
100 | int ch; | |
101 | ino_t ino; | |
ddd2ef55 | 102 | char *inputdev = _PATH_DEFTAPE; |
1227625a SP |
103 | char *symtbl = "./restoresymtable"; |
104 | char *p, name[MAXPATHLEN]; | |
105 | ||
b45f51d6 SP |
106 | /* Temp files should *not* be readable. We set permissions later. */ |
107 | (void) umask(077); | |
1227625a SP |
108 | |
109 | #ifdef __linux__ | |
110 | __progname = argv[0]; | |
111 | #endif | |
112 | ||
b45f51d6 SP |
113 | if (argc < 2) |
114 | usage(); | |
115 | ||
116 | if ((inputdev = getenv("TAPE")) == NULL) | |
117 | inputdev = _PATH_DEFTAPE; | |
ddd2ef55 SP |
118 | if ((tmpdir = getenv("TMPDIR")) == NULL) |
119 | tmpdir = _PATH_TMP; | |
120 | if ((tmpdir = strdup(tmpdir)) == NULL) | |
121 | err(1, "malloc tmpdir"); | |
122 | for (p = tmpdir + strlen(tmpdir) - 1; p >= tmpdir && *p == '/'; p--) | |
123 | ; | |
1227625a | 124 | obsolete(&argc, &argv); |
b45f51d6 | 125 | #ifdef KERBEROS |
ddd2ef55 | 126 | #define optlist "b:CcdD:f:hikmNRrs:tT:uvxy" |
b45f51d6 | 127 | #else |
ddd2ef55 | 128 | #define optlist "b:CcdD:f:himNRrs:tT:uvxy" |
b45f51d6 SP |
129 | #endif |
130 | while ((ch = getopt(argc, argv, optlist)) != -1) | |
1227625a SP |
131 | switch(ch) { |
132 | case 'b': | |
133 | /* Change default tape blocksize. */ | |
134 | bflag = 1; | |
135 | ntrec = strtol(optarg, &p, 10); | |
136 | if (*p) | |
137 | errx(1, "illegal blocksize -- %s", optarg); | |
138 | if (ntrec <= 0) | |
139 | errx(1, "block size must be greater than 0"); | |
140 | break; | |
141 | case 'c': | |
142 | cvtflag = 1; | |
143 | break; | |
144 | case 'D': | |
145 | filesys = optarg; | |
146 | break; | |
147 | case 'T': | |
148 | tmpdir = optarg; | |
149 | break; | |
150 | case 'd': | |
151 | dflag = 1; | |
152 | break; | |
153 | case 'f': | |
154 | inputdev = optarg; | |
155 | break; | |
156 | case 'h': | |
157 | hflag = 0; | |
158 | break; | |
b45f51d6 SP |
159 | #ifdef KERBEROS |
160 | case 'k': | |
161 | dokerberos = 1; | |
162 | break; | |
163 | #endif | |
1227625a SP |
164 | case 'C': |
165 | case 'i': | |
166 | case 'R': | |
167 | case 'r': | |
168 | case 't': | |
169 | case 'x': | |
170 | if (command != '\0') | |
171 | errx(1, | |
172 | "%c and %c options are mutually exclusive", | |
173 | ch, command); | |
174 | command = ch; | |
175 | break; | |
176 | case 'm': | |
177 | mflag = 0; | |
178 | break; | |
179 | case 'N': | |
180 | Nflag = 1; | |
181 | break; | |
182 | case 's': | |
183 | /* Dumpnum (skip to) for multifile dump tapes. */ | |
184 | dumpnum = strtol(optarg, &p, 10); | |
185 | if (*p) | |
186 | errx(1, "illegal dump number -- %s", optarg); | |
187 | if (dumpnum <= 0) | |
188 | errx(1, "dump number must be greater than 0"); | |
189 | break; | |
b45f51d6 SP |
190 | case 'u': |
191 | uflag = 1; | |
192 | break; | |
1227625a SP |
193 | case 'v': |
194 | vflag = 1; | |
195 | break; | |
196 | case 'y': | |
197 | yflag = 1; | |
198 | break; | |
199 | default: | |
200 | usage(); | |
201 | } | |
202 | argc -= optind; | |
203 | argv += optind; | |
204 | ||
205 | if (command == '\0') | |
206 | errx(1, "none of C, i, R, r, t or x options specified"); | |
207 | ||
208 | if (signal(SIGINT, onintr) == SIG_IGN) | |
209 | (void) signal(SIGINT, SIG_IGN); | |
210 | if (signal(SIGTERM, onintr) == SIG_IGN) | |
211 | (void) signal(SIGTERM, SIG_IGN); | |
212 | setlinebuf(stderr); | |
213 | ||
ddd2ef55 SP |
214 | atexit(cleanup); |
215 | ||
1227625a SP |
216 | setinput(inputdev); |
217 | ||
218 | if (argc == 0) { | |
219 | argc = 1; | |
220 | *--argv = "."; | |
221 | } | |
222 | ||
223 | switch (command) { | |
224 | /* | |
225 | * Compare contents of tape. | |
226 | */ | |
227 | case 'C': { | |
228 | struct stat stbuf; | |
229 | ||
ddd2ef55 | 230 | Vprintf(stdout, "Begin compare restore\n"); |
1227625a SP |
231 | compare_ignore_not_found = 0; |
232 | setup(); | |
233 | printf("filesys = %s\n", filesys); | |
ddd2ef55 SP |
234 | if (stat(filesys, &stbuf) < 0) |
235 | err(1, "cannot stat directory %s", filesys); | |
236 | if (chdir(filesys) < 0) | |
237 | err(1, "cannot cd to %s", filesys); | |
1227625a SP |
238 | compare_ignore_not_found = dumptime > 0; |
239 | initsymtable((char *)0); | |
240 | extractdirs(0); | |
241 | treescan(".", ROOTINO, nodeupdates); | |
242 | compareleaves(); | |
243 | checkrestore(); | |
244 | break; | |
245 | } | |
246 | ||
247 | /* | |
248 | * Interactive mode. | |
249 | */ | |
250 | case 'i': | |
251 | setup(); | |
252 | extractdirs(1); | |
253 | initsymtable(NULL); | |
254 | runcmdshell(); | |
255 | break; | |
256 | /* | |
257 | * Incremental restoration of a file system. | |
258 | */ | |
259 | case 'r': | |
260 | setup(); | |
261 | if (dumptime > 0) { | |
262 | /* | |
263 | * This is an incremental dump tape. | |
264 | */ | |
ddd2ef55 | 265 | Vprintf(stdout, "Begin incremental restore\n"); |
1227625a SP |
266 | initsymtable(symtbl); |
267 | extractdirs(1); | |
268 | removeoldleaves(); | |
ddd2ef55 | 269 | Vprintf(stdout, "Calculate node updates.\n"); |
1227625a SP |
270 | treescan(".", ROOTINO, nodeupdates); |
271 | findunreflinks(); | |
272 | removeoldnodes(); | |
273 | } else { | |
274 | /* | |
275 | * This is a level zero dump tape. | |
276 | */ | |
ddd2ef55 | 277 | Vprintf(stdout, "Begin level 0 restore\n"); |
1227625a SP |
278 | initsymtable((char *)0); |
279 | extractdirs(1); | |
ddd2ef55 | 280 | Vprintf(stdout, "Calculate extraction list.\n"); |
1227625a SP |
281 | treescan(".", ROOTINO, nodeupdates); |
282 | } | |
283 | createleaves(symtbl); | |
284 | createlinks(); | |
285 | setdirmodes(FORCE); | |
286 | checkrestore(); | |
287 | if (dflag) { | |
ddd2ef55 | 288 | Vprintf(stdout, "Verify the directory structure\n"); |
1227625a SP |
289 | treescan(".", ROOTINO, verifyfile); |
290 | } | |
291 | dumpsymtable(symtbl, (long)1); | |
292 | break; | |
293 | /* | |
294 | * Resume an incremental file system restoration. | |
295 | */ | |
296 | case 'R': | |
297 | initsymtable(symtbl); | |
298 | skipmaps(); | |
299 | skipdirs(); | |
300 | createleaves(symtbl); | |
301 | createlinks(); | |
302 | setdirmodes(FORCE); | |
303 | checkrestore(); | |
304 | dumpsymtable(symtbl, (long)1); | |
305 | break; | |
306 | /* | |
307 | * List contents of tape. | |
308 | */ | |
309 | case 't': | |
310 | setup(); | |
311 | extractdirs(0); | |
312 | initsymtable((char *)0); | |
313 | while (argc--) { | |
b45f51d6 | 314 | canon(*argv++, name, sizeof(name)); |
1227625a SP |
315 | ino = dirlookup(name); |
316 | if (ino == 0) | |
317 | continue; | |
318 | treescan(name, ino, listfile); | |
319 | } | |
320 | break; | |
321 | /* | |
322 | * Batch extraction of tape contents. | |
323 | */ | |
324 | case 'x': | |
325 | setup(); | |
326 | extractdirs(1); | |
327 | initsymtable((char *)0); | |
328 | while (argc--) { | |
b45f51d6 | 329 | canon(*argv++, name, sizeof(name)); |
1227625a SP |
330 | ino = dirlookup(name); |
331 | if (ino == 0) | |
332 | continue; | |
333 | if (mflag) | |
334 | pathcheck(name); | |
335 | treescan(name, ino, addfile); | |
336 | } | |
337 | createfiles(); | |
338 | createlinks(); | |
339 | setdirmodes(0); | |
340 | if (dflag) | |
341 | checkrestore(); | |
342 | break; | |
343 | } | |
ddd2ef55 | 344 | exit(0); |
1227625a | 345 | /* NOTREACHED */ |
ddd2ef55 | 346 | return 0; /* gcc shut up */ |
1227625a SP |
347 | } |
348 | ||
349 | static void | |
ddd2ef55 | 350 | usage(void) |
1227625a | 351 | { |
8d4197bb SP |
352 | #ifdef KERBEROS |
353 | #define kerbflag "k" | |
354 | #else | |
355 | #define kerbflag | |
356 | #endif | |
1227625a | 357 | (void)fprintf(stderr, "usage:\t%s\n\t%s\n\t%s\n\t%s\n\t%s\n", |
8d4197bb SP |
358 | "restore -i [-ch" kerbflag "muvy] [-b blocksize] [-f file] [-s fileno]", |
359 | "restore -r [-c" kerbflag "uvy] [-b blocksize] [-f file] [-s fileno]", | |
360 | "restore -R [-c" kerbflag "uvy] [-b blocksize] [-f file] [-s fileno]", | |
361 | "restore -x [-ch" kerbflag "muvy] [-b blocksize] [-f file] [-s fileno] [file ...]", | |
362 | "restore -t [-ch" kerbflag "kuvy] [-b blocksize] [-f file] [-s fileno] [file ...]"); | |
ddd2ef55 | 363 | exit(1); |
1227625a SP |
364 | } |
365 | ||
366 | /* | |
367 | * obsolete -- | |
368 | * Change set of key letters and ordered arguments into something | |
369 | * getopt(3) will like. | |
370 | */ | |
371 | static void | |
ddd2ef55 | 372 | obsolete(int *argcp, char **argvp[]) |
1227625a SP |
373 | { |
374 | int argc, flags; | |
ddd2ef55 | 375 | char *ap, **argv, *flagsp = NULL, **nargv, *p = NULL; |
1227625a SP |
376 | |
377 | /* Setup. */ | |
378 | argv = *argvp; | |
379 | argc = *argcp; | |
380 | ||
381 | /* Return if no arguments or first argument has leading dash. */ | |
382 | ap = argv[1]; | |
383 | if (argc == 1 || *ap == '-') | |
384 | return; | |
385 | ||
386 | /* Allocate space for new arguments. */ | |
387 | if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || | |
388 | (p = flagsp = malloc(strlen(ap) + 2)) == NULL) | |
ddd2ef55 | 389 | err(1, "malloc args"); |
1227625a SP |
390 | |
391 | *nargv++ = *argv; | |
b45f51d6 | 392 | argv += 2, argc -= 2; |
1227625a SP |
393 | |
394 | for (flags = 0; *ap; ++ap) { | |
395 | switch (*ap) { | |
396 | case 'b': | |
397 | case 'f': | |
398 | case 's': | |
399 | if (*argv == NULL) { | |
400 | warnx("option requires an argument -- %c", *ap); | |
401 | usage(); | |
402 | } | |
403 | if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) | |
ddd2ef55 | 404 | err(1, "malloc arg"); |
1227625a SP |
405 | nargv[0][0] = '-'; |
406 | nargv[0][1] = *ap; | |
407 | (void)strcpy(&nargv[0][2], *argv); | |
408 | ++argv; | |
409 | ++nargv; | |
410 | break; | |
411 | default: | |
412 | if (!flags) { | |
413 | *p++ = '-'; | |
414 | flags = 1; | |
415 | } | |
416 | *p++ = *ap; | |
417 | break; | |
418 | } | |
419 | } | |
420 | ||
421 | /* Terminate flags. */ | |
422 | if (flags) { | |
423 | *p = '\0'; | |
424 | *nargv++ = flagsp; | |
425 | } | |
426 | ||
427 | /* Copy remaining arguments. */ | |
b45f51d6 | 428 | while ((*nargv++ = *argv++)); |
1227625a SP |
429 | |
430 | /* Update argument count. */ | |
431 | *argcp = nargv - *argvp - 1; | |
432 | } |