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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. | |
40 | */ | |
41 | ||
42 | #ifndef lint | |
b45f51d6 | 43 | static const char copyright[] = |
1227625a SP |
44 | "@(#) Copyright (c) 1983, 1993\n\ |
45 | The Regents of the University of California. All rights reserved.\n"; | |
46 | #endif /* not lint */ | |
47 | ||
48 | #ifndef lint | |
b45f51d6 | 49 | #if 0 |
1227625a | 50 | static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/4/95"; |
b45f51d6 SP |
51 | #endif |
52 | static const char rcsid[] = | |
53 | "$Id: main.c,v 1.2 1999/10/11 12:53:23 stelian Exp $"; | |
1227625a SP |
54 | #endif /* not lint */ |
55 | ||
56 | #include <sys/param.h> | |
1227625a | 57 | #include <sys/stat.h> |
b45f51d6 | 58 | #include <errno.h> |
1227625a SP |
59 | |
60 | #ifdef __linux__ | |
61 | #include <linux/ext2_fs.h> | |
62 | #include <bsdcompat.h> | |
b45f51d6 SP |
63 | #include <signal.h> |
64 | #include <string.h> | |
1227625a SP |
65 | #else /* __linux__ */ |
66 | #include <ufs/ufs/dinode.h> | |
1227625a SP |
67 | #endif /* __linux__ */ |
68 | #include <protocols/dumprestore.h> | |
69 | ||
70 | #include <err.h> | |
1227625a SP |
71 | #include <stdio.h> |
72 | #include <stdlib.h> | |
1227625a SP |
73 | #include <unistd.h> |
74 | ||
75 | #ifdef __linux__ | |
76 | #include <ext2fs/ext2fs.h> | |
77 | #include <getopt.h> | |
78 | #endif | |
79 | ||
80 | #include "pathnames.h" | |
81 | #include "restore.h" | |
82 | #include "extern.h" | |
83 | ||
84 | int bflag = 0, cvtflag = 0, dflag = 0, vflag = 0, yflag = 0; | |
85 | int hflag = 1, mflag = 1, Nflag = 0; | |
b45f51d6 SP |
86 | int uflag = 0; |
87 | int dokerberos = 0; | |
1227625a SP |
88 | char command = '\0'; |
89 | long dumpnum = 1; | |
90 | long volno = 0; | |
91 | long ntrec; | |
92 | char *dumpmap; | |
93 | char *usedinomap; | |
94 | ino_t maxino; | |
95 | time_t dumptime; | |
96 | time_t dumpdate; | |
97 | FILE *terminal; | |
98 | int compare_ignore_not_found; | |
99 | char *filesys = NULL; | |
100 | char *tmpdir = _PATH_TMP; | |
101 | ||
102 | #ifdef __linux__ | |
103 | char *__progname; | |
104 | #endif | |
105 | ||
106 | static void obsolete __P((int *, char **[])); | |
107 | static void usage __P((void)); | |
108 | ||
109 | int | |
110 | main(argc, argv) | |
111 | int argc; | |
112 | char *argv[]; | |
113 | { | |
114 | int ch; | |
115 | ino_t ino; | |
b45f51d6 | 116 | char *inputdev; |
1227625a SP |
117 | char *symtbl = "./restoresymtable"; |
118 | char *p, name[MAXPATHLEN]; | |
119 | ||
b45f51d6 SP |
120 | /* Temp files should *not* be readable. We set permissions later. */ |
121 | (void) umask(077); | |
1227625a SP |
122 | |
123 | #ifdef __linux__ | |
124 | __progname = argv[0]; | |
125 | #endif | |
126 | ||
b45f51d6 SP |
127 | if (argc < 2) |
128 | usage(); | |
129 | ||
130 | if ((inputdev = getenv("TAPE")) == NULL) | |
131 | inputdev = _PATH_DEFTAPE; | |
1227625a | 132 | obsolete(&argc, &argv); |
b45f51d6 SP |
133 | #ifdef KERBEROS |
134 | #define optlist "b:CcdDf:hikmNRrs:tTuvxy" | |
135 | #else | |
136 | #define optlist "b:CcdDf:himNRrs:tTuvxy" | |
137 | #endif | |
138 | while ((ch = getopt(argc, argv, optlist)) != -1) | |
1227625a SP |
139 | switch(ch) { |
140 | case 'b': | |
141 | /* Change default tape blocksize. */ | |
142 | bflag = 1; | |
143 | ntrec = strtol(optarg, &p, 10); | |
144 | if (*p) | |
145 | errx(1, "illegal blocksize -- %s", optarg); | |
146 | if (ntrec <= 0) | |
147 | errx(1, "block size must be greater than 0"); | |
148 | break; | |
149 | case 'c': | |
150 | cvtflag = 1; | |
151 | break; | |
152 | case 'D': | |
153 | filesys = optarg; | |
154 | break; | |
155 | case 'T': | |
156 | tmpdir = optarg; | |
157 | break; | |
158 | case 'd': | |
159 | dflag = 1; | |
160 | break; | |
161 | case 'f': | |
162 | inputdev = optarg; | |
163 | break; | |
164 | case 'h': | |
165 | hflag = 0; | |
166 | break; | |
b45f51d6 SP |
167 | #ifdef KERBEROS |
168 | case 'k': | |
169 | dokerberos = 1; | |
170 | break; | |
171 | #endif | |
1227625a SP |
172 | case 'C': |
173 | case 'i': | |
174 | case 'R': | |
175 | case 'r': | |
176 | case 't': | |
177 | case 'x': | |
178 | if (command != '\0') | |
179 | errx(1, | |
180 | "%c and %c options are mutually exclusive", | |
181 | ch, command); | |
182 | command = ch; | |
183 | break; | |
184 | case 'm': | |
185 | mflag = 0; | |
186 | break; | |
187 | case 'N': | |
188 | Nflag = 1; | |
189 | break; | |
190 | case 's': | |
191 | /* Dumpnum (skip to) for multifile dump tapes. */ | |
192 | dumpnum = strtol(optarg, &p, 10); | |
193 | if (*p) | |
194 | errx(1, "illegal dump number -- %s", optarg); | |
195 | if (dumpnum <= 0) | |
196 | errx(1, "dump number must be greater than 0"); | |
197 | break; | |
b45f51d6 SP |
198 | case 'u': |
199 | uflag = 1; | |
200 | break; | |
1227625a SP |
201 | case 'v': |
202 | vflag = 1; | |
203 | break; | |
204 | case 'y': | |
205 | yflag = 1; | |
206 | break; | |
207 | default: | |
208 | usage(); | |
209 | } | |
210 | argc -= optind; | |
211 | argv += optind; | |
212 | ||
213 | if (command == '\0') | |
214 | errx(1, "none of C, i, R, r, t or x options specified"); | |
215 | ||
216 | if (signal(SIGINT, onintr) == SIG_IGN) | |
217 | (void) signal(SIGINT, SIG_IGN); | |
218 | if (signal(SIGTERM, onintr) == SIG_IGN) | |
219 | (void) signal(SIGTERM, SIG_IGN); | |
220 | setlinebuf(stderr); | |
221 | ||
222 | setinput(inputdev); | |
223 | ||
224 | if (argc == 0) { | |
225 | argc = 1; | |
226 | *--argv = "."; | |
227 | } | |
228 | ||
229 | switch (command) { | |
230 | /* | |
231 | * Compare contents of tape. | |
232 | */ | |
233 | case 'C': { | |
234 | struct stat stbuf; | |
235 | ||
236 | vprintf(stdout, "Begin compare restore\n"); | |
237 | compare_ignore_not_found = 0; | |
238 | setup(); | |
239 | printf("filesys = %s\n", filesys); | |
240 | if (stat(filesys, &stbuf) < 0) { | |
241 | fprintf(stderr, "cannot stat directory %s: %s\n", | |
242 | filesys, strerror(errno)); | |
243 | exit(1); | |
244 | } else { | |
245 | if (chdir(filesys) < 0) { | |
246 | fprintf(stderr, "cannot cd to %s: %s\n", | |
247 | filesys, strerror(errno)); | |
248 | exit(1); | |
249 | } | |
250 | } | |
251 | compare_ignore_not_found = dumptime > 0; | |
252 | initsymtable((char *)0); | |
253 | extractdirs(0); | |
254 | treescan(".", ROOTINO, nodeupdates); | |
255 | compareleaves(); | |
256 | checkrestore(); | |
257 | break; | |
258 | } | |
259 | ||
260 | /* | |
261 | * Interactive mode. | |
262 | */ | |
263 | case 'i': | |
264 | setup(); | |
265 | extractdirs(1); | |
266 | initsymtable(NULL); | |
267 | runcmdshell(); | |
268 | break; | |
269 | /* | |
270 | * Incremental restoration of a file system. | |
271 | */ | |
272 | case 'r': | |
273 | setup(); | |
274 | if (dumptime > 0) { | |
275 | /* | |
276 | * This is an incremental dump tape. | |
277 | */ | |
278 | vprintf(stdout, "Begin incremental restore\n"); | |
279 | initsymtable(symtbl); | |
280 | extractdirs(1); | |
281 | removeoldleaves(); | |
282 | vprintf(stdout, "Calculate node updates.\n"); | |
283 | treescan(".", ROOTINO, nodeupdates); | |
284 | findunreflinks(); | |
285 | removeoldnodes(); | |
286 | } else { | |
287 | /* | |
288 | * This is a level zero dump tape. | |
289 | */ | |
290 | vprintf(stdout, "Begin level 0 restore\n"); | |
291 | initsymtable((char *)0); | |
292 | extractdirs(1); | |
293 | vprintf(stdout, "Calculate extraction list.\n"); | |
294 | treescan(".", ROOTINO, nodeupdates); | |
295 | } | |
296 | createleaves(symtbl); | |
297 | createlinks(); | |
298 | setdirmodes(FORCE); | |
299 | checkrestore(); | |
300 | if (dflag) { | |
301 | vprintf(stdout, "Verify the directory structure\n"); | |
302 | treescan(".", ROOTINO, verifyfile); | |
303 | } | |
304 | dumpsymtable(symtbl, (long)1); | |
305 | break; | |
306 | /* | |
307 | * Resume an incremental file system restoration. | |
308 | */ | |
309 | case 'R': | |
310 | initsymtable(symtbl); | |
311 | skipmaps(); | |
312 | skipdirs(); | |
313 | createleaves(symtbl); | |
314 | createlinks(); | |
315 | setdirmodes(FORCE); | |
316 | checkrestore(); | |
317 | dumpsymtable(symtbl, (long)1); | |
318 | break; | |
319 | /* | |
320 | * List contents of tape. | |
321 | */ | |
322 | case 't': | |
323 | setup(); | |
324 | extractdirs(0); | |
325 | initsymtable((char *)0); | |
326 | while (argc--) { | |
b45f51d6 | 327 | canon(*argv++, name, sizeof(name)); |
1227625a SP |
328 | ino = dirlookup(name); |
329 | if (ino == 0) | |
330 | continue; | |
331 | treescan(name, ino, listfile); | |
332 | } | |
333 | break; | |
334 | /* | |
335 | * Batch extraction of tape contents. | |
336 | */ | |
337 | case 'x': | |
338 | setup(); | |
339 | extractdirs(1); | |
340 | initsymtable((char *)0); | |
341 | while (argc--) { | |
b45f51d6 | 342 | canon(*argv++, name, sizeof(name)); |
1227625a SP |
343 | ino = dirlookup(name); |
344 | if (ino == 0) | |
345 | continue; | |
346 | if (mflag) | |
347 | pathcheck(name); | |
348 | treescan(name, ino, addfile); | |
349 | } | |
350 | createfiles(); | |
351 | createlinks(); | |
352 | setdirmodes(0); | |
353 | if (dflag) | |
354 | checkrestore(); | |
355 | break; | |
356 | } | |
357 | done(0); | |
358 | /* NOTREACHED */ | |
b45f51d6 | 359 | exit(1); /* gcc shut up */ |
1227625a SP |
360 | } |
361 | ||
362 | static void | |
363 | usage() | |
364 | { | |
365 | (void)fprintf(stderr, "usage:\t%s\n\t%s\n\t%s\n\t%s\n\t%s\n", | |
b45f51d6 SP |
366 | "restore -i [-chkmuvy] [-b blocksize] [-f file] [-s fileno]", |
367 | "restore -r [-ckuvy] [-b blocksize] [-f file] [-s fileno]", | |
368 | "restore -R [-ckuvy] [-b blocksize] [-f file] [-s fileno]", | |
369 | "restore -x [-chkmuvy] [-b blocksize] [-f file] [-s fileno] [file ...]", | |
370 | "restore -t [-chkuvy] [-b blocksize] [-f file] [-s fileno] [file ...]"); | |
1227625a SP |
371 | done(1); |
372 | } | |
373 | ||
374 | /* | |
375 | * obsolete -- | |
376 | * Change set of key letters and ordered arguments into something | |
377 | * getopt(3) will like. | |
378 | */ | |
379 | static void | |
380 | obsolete(argcp, argvp) | |
381 | int *argcp; | |
382 | char **argvp[]; | |
383 | { | |
384 | int argc, flags; | |
b45f51d6 | 385 | char *ap, **argv, *flagsp=NULL, **nargv, *p=NULL; |
1227625a SP |
386 | |
387 | /* Setup. */ | |
388 | argv = *argvp; | |
389 | argc = *argcp; | |
390 | ||
391 | /* Return if no arguments or first argument has leading dash. */ | |
392 | ap = argv[1]; | |
393 | if (argc == 1 || *ap == '-') | |
394 | return; | |
395 | ||
396 | /* Allocate space for new arguments. */ | |
397 | if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || | |
398 | (p = flagsp = malloc(strlen(ap) + 2)) == NULL) | |
399 | err(1, NULL); | |
400 | ||
401 | *nargv++ = *argv; | |
b45f51d6 | 402 | argv += 2, argc -= 2; |
1227625a SP |
403 | |
404 | for (flags = 0; *ap; ++ap) { | |
405 | switch (*ap) { | |
406 | case 'b': | |
407 | case 'f': | |
408 | case 's': | |
409 | if (*argv == NULL) { | |
410 | warnx("option requires an argument -- %c", *ap); | |
411 | usage(); | |
412 | } | |
413 | if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) | |
414 | err(1, NULL); | |
415 | nargv[0][0] = '-'; | |
416 | nargv[0][1] = *ap; | |
417 | (void)strcpy(&nargv[0][2], *argv); | |
418 | ++argv; | |
419 | ++nargv; | |
420 | break; | |
421 | default: | |
422 | if (!flags) { | |
423 | *p++ = '-'; | |
424 | flags = 1; | |
425 | } | |
426 | *p++ = *ap; | |
427 | break; | |
428 | } | |
429 | } | |
430 | ||
431 | /* Terminate flags. */ | |
432 | if (flags) { | |
433 | *p = '\0'; | |
434 | *nargv++ = flagsp; | |
435 | } | |
436 | ||
437 | /* Copy remaining arguments. */ | |
b45f51d6 | 438 | while ((*nargv++ = *argv++)); |
1227625a SP |
439 | |
440 | /* Update argument count. */ | |
441 | *argcp = nargv - *argvp - 1; | |
442 | } |