Commit | Line | Data |
---|---|---|
7d4dda01 KM |
1 | /* Copyright (c) 1981 Regents of the University of California */ |
2 | ||
bcfabedf | 3 | char version[] = "@(#)main.c 1.6 %G%"; |
7d4dda01 KM |
4 | |
5 | /* Modified to include h option (recursively extract all files within | |
6 | * a subtree) and m option (recreate the heirarchical structure of | |
7 | * that subtree and move extracted files to their proper homes). | |
8 | * 8/29/80 by Mike Litzkow | |
9 | * | |
10 | * Includes the s (skip files) option for use with multiple dumps on | |
11 | * a single tape. | |
12 | */ | |
13 | ||
e077bab5 | 14 | /* static char *sccsid = "@(#)restor.c 4.3 (Berkeley) 6/3/81"; */ |
7d4dda01 KM |
15 | |
16 | #define MAXINO 3000 | |
17 | #define BITS 8 | |
18 | #define NCACHE 3 | |
7d4dda01 KM |
19 | #define SIZEINC 10 |
20 | ||
21 | #ifndef STANDALONE | |
22 | #include <stdio.h> | |
23 | #include <signal.h> | |
24 | #endif | |
003a2a9e KM |
25 | #include "../h/param.h" |
26 | #include "../h/inode.h" | |
27 | #include "../h/fs.h" | |
28 | #include "../h/buf.h" | |
29 | #include "../h/dir.h" | |
30 | #include "../h/user.h" | |
31 | #include "../h/dumprestor.h" | |
7d4dda01 KM |
32 | |
33 | #define MWORD(m,i) (m[(unsigned)(i-1)/MLEN]) | |
34 | #define MBIT(i) (1<<((unsigned)(i-1)%MLEN)) | |
35 | #define BIS(i,w) (MWORD(w,i) |= MBIT(i)) | |
36 | #define BIC(i,w) (MWORD(w,i) &= ~MBIT(i)) | |
37 | #define BIT(i,w) (MWORD(w,i) & MBIT(i)) | |
38 | ||
003a2a9e | 39 | ino_t ino, maxi; |
7d4dda01 | 40 | |
19ac1bc8 KM |
41 | int mt; |
42 | ||
bcfabedf | 43 | int eflag = 0, hflag = 0, mflag = 0; |
7d4dda01 | 44 | |
003a2a9e KM |
45 | char mounted = 0; |
46 | dev_t dev = 0; | |
7d4dda01 KM |
47 | char tapename[] = "/dev/rmt8"; |
48 | char *magtape = tapename; | |
49 | ||
50 | #ifdef STANDALONE | |
51 | char mbuf[50]; | |
52 | #endif | |
53 | ||
7d4dda01 | 54 | daddr_t seekpt; |
0841dbb0 KM |
55 | FILE *df; |
56 | int ofile; | |
7d4dda01 KM |
57 | char dirfile[] = "rstXXXXXX"; |
58 | ||
0841dbb0 KM |
59 | #define INOHASH(val) (val % MAXINO) |
60 | struct inotab { | |
61 | struct inotab *t_next; | |
7d4dda01 KM |
62 | ino_t t_ino; |
63 | daddr_t t_seekpt; | |
0841dbb0 | 64 | } *inotab[MAXINO]; |
7d4dda01 | 65 | |
0841dbb0 | 66 | #define XISDIR 1 |
7d4dda01 KM |
67 | #define XTRACTD 2 |
68 | #define XINUSE 4 | |
0841dbb0 | 69 | #define XLINKED 8 |
7d4dda01 | 70 | struct xtrlist { |
0841dbb0 KM |
71 | struct xtrlist *x_next; |
72 | struct xtrlist *x_linkedto; | |
0841dbb0 | 73 | time_t x_timep[2]; |
bcfabedf | 74 | ino_t x_ino; |
0841dbb0 | 75 | char x_flags; |
bcfabedf KM |
76 | char x_name[1]; |
77 | /* actually longer */ | |
0841dbb0 | 78 | } *xtrlist[MAXINO]; |
19ac1bc8 | 79 | int xtrcnt = 0; |
7d4dda01 | 80 | |
7d4dda01 KM |
81 | #include <sys/mtio.h> |
82 | struct mtop tcom; | |
83 | ||
7d4dda01 KM |
84 | int dumpnum = 1; |
85 | int volno = 1; | |
86 | ||
003a2a9e | 87 | struct inode *cur_ip; |
7d4dda01 KM |
88 | |
89 | short dumpmap[MSIZ]; | |
90 | short clrimap[MSIZ]; | |
003a2a9e | 91 | char clearedbuf[BSIZE]; |
7d4dda01 | 92 | |
19ac1bc8 KM |
93 | int curblk = 0; |
94 | ||
7d4dda01 | 95 | int bct = NTREC+1; |
19ac1bc8 | 96 | char tbf[NTREC*TP_BSIZE]; |
7d4dda01 | 97 | |
0841dbb0 | 98 | extern char *ctime(); |
bcfabedf | 99 | ino_t search(); |
003a2a9e | 100 | char **envp; |
7d4dda01 | 101 | |
003a2a9e KM |
102 | main(argc, argv, arge) |
103 | int argc; | |
104 | char *argv[]; | |
105 | char **arge; | |
7d4dda01 KM |
106 | { |
107 | register char *cp; | |
108 | char command; | |
003a2a9e | 109 | int (*signal())(); |
7d4dda01 KM |
110 | int done(); |
111 | ||
bcfabedf KM |
112 | if (signal(SIGINT, done) == SIG_IGN) |
113 | signal(SIGINT, SIG_IGN); | |
114 | if (signal(SIGTERM, done) == SIG_IGN) | |
115 | signal(SIGTERM, SIG_IGN); | |
7d4dda01 | 116 | #ifndef STANDALONE |
003a2a9e KM |
117 | envp = arge; |
118 | mktmp(dirfile); | |
7d4dda01 KM |
119 | if (argc < 2) { |
120 | usage: | |
0841dbb0 | 121 | fprintf(stderr, "Usage: restor x[s|m|h|v] file file..., restor r|R filesys, or restor t\n"); |
003a2a9e | 122 | done(1); |
7d4dda01 KM |
123 | } |
124 | argv++; | |
125 | argc -= 2; | |
126 | for (cp = *argv++; *cp; cp++) { | |
127 | switch (*cp) { | |
128 | case '-': | |
129 | break; | |
130 | case 'f': | |
131 | magtape = *argv++; | |
132 | argc--; | |
133 | break; | |
134 | /* s dumpnum (skip to) for multifile dump tapes */ | |
135 | case 's': | |
136 | dumpnum = atoi(*argv++); | |
137 | if(dumpnum <= 0) { | |
003a2a9e KM |
138 | fprintf(stderr, "Dump number must be a positive integer\n"); |
139 | done(1); | |
7d4dda01 KM |
140 | } |
141 | argc--; | |
142 | break; | |
143 | case 'h': | |
144 | hflag++; | |
145 | break; | |
146 | case 'm': | |
147 | mflag++; | |
148 | break; | |
149 | case 'r': | |
150 | case 'R': | |
151 | case 't': | |
152 | case 'x': | |
153 | command = *cp; | |
154 | break; | |
155 | default: | |
003a2a9e | 156 | fprintf(stderr, "Bad key character %c\n", *cp); |
7d4dda01 KM |
157 | goto usage; |
158 | } | |
159 | } | |
160 | if (command == 'x') { | |
0841dbb0 KM |
161 | df = fopen(dirfile, "w"); |
162 | if (df == 0) { | |
003a2a9e KM |
163 | fprintf(stderr, "restor: %s - cannot create directory temporary\n", dirfile); |
164 | done(1); | |
7d4dda01 | 165 | } |
003a2a9e KM |
166 | xmount(envp); |
167 | mounted++; | |
7d4dda01 KM |
168 | } |
169 | doit(command, argc, argv); | |
003a2a9e | 170 | done(0); |
7d4dda01 KM |
171 | #else |
172 | magtape = "tape"; | |
173 | doit('r', 1, 0); | |
174 | #endif | |
175 | } | |
176 | ||
177 | doit(command, argc, argv) | |
003a2a9e KM |
178 | char command; |
179 | int argc; | |
180 | char *argv[]; | |
7d4dda01 | 181 | { |
7d4dda01 | 182 | #ifndef STANDALONE |
7d4dda01 | 183 | if ((mt = open(magtape, 0)) < 0) { |
003a2a9e KM |
184 | fprintf(stderr, "%s: cannot open tape\n", magtape); |
185 | done(1); | |
7d4dda01 | 186 | } |
bcfabedf | 187 | if (dumpnum != 1) { |
7d4dda01 KM |
188 | tcom.mt_op = MTFSF; |
189 | tcom.mt_count = dumpnum -1; | |
bcfabedf | 190 | if (ioctl(mt,MTIOCTOP,&tcom) < 0) |
7d4dda01 KM |
191 | perror("ioctl MTFSF"); |
192 | } | |
193 | #else | |
194 | do { | |
003a2a9e | 195 | fprintf(stderr, "Tape? "); |
7d4dda01 KM |
196 | gets(mbuf); |
197 | mt = open(mbuf, 0); | |
198 | } while (mt == -1); | |
199 | magtape = mbuf; | |
003a2a9e | 200 | clearbuf(clearedbuf); |
7d4dda01 KM |
201 | #endif |
202 | switch(command) { | |
203 | #ifndef STANDALONE | |
204 | case 't': | |
205 | if (readhdr(&spcl) == 0) { | |
003a2a9e KM |
206 | fprintf(stderr, "Tape is not a dump tape\n"); |
207 | done(1); | |
7d4dda01 | 208 | } |
bcfabedf KM |
209 | fprintf(stdout, "Dump date: %s", ctime(&spcl.c_date)); |
210 | fprintf(stdout, "Dumped from: %s", ctime(&spcl.c_ddate)); | |
7d4dda01 KM |
211 | return; |
212 | case 'x': | |
0841dbb0 KM |
213 | extractfiles(argc, argv); |
214 | return; | |
215 | case 'r': | |
216 | case 'R': | |
217 | restorfiles(command, argv); | |
218 | return; | |
219 | } | |
220 | #endif | |
221 | } | |
222 | ||
223 | #ifndef STANDALONE | |
224 | extractfiles(argc, argv) | |
225 | int argc; | |
226 | char **argv; | |
227 | { | |
bcfabedf | 228 | char *ststore(); |
0841dbb0 KM |
229 | register struct xtrlist *xp; |
230 | struct xtrlist **xpp; | |
231 | ino_t d; | |
232 | int xtrfile(), skip(), null(); | |
bcfabedf KM |
233 | int mode; |
234 | char name[BUFSIZ + 1]; | |
0841dbb0 KM |
235 | |
236 | if (readhdr(&spcl) == 0) { | |
237 | fprintf(stderr, "Tape is not a dump tape\n"); | |
238 | done(1); | |
239 | } | |
240 | if (checkvol(&spcl, 1) == 0) { | |
241 | fprintf(stderr, "Tape is not volume 1 of the dump\n"); | |
242 | } | |
243 | pass1(); /* This sets the various maps on the way by */ | |
bcfabedf | 244 | while (argc--) { |
0841dbb0 | 245 | if ((d = psearch(*argv)) == 0 || BIT(d,dumpmap) == 0) { |
bcfabedf | 246 | fprintf(stdout, "%s: not on tape\n", *argv++); |
0841dbb0 | 247 | continue; |
7d4dda01 | 248 | } |
bcfabedf KM |
249 | if (mflag) |
250 | checkdir(*argv); | |
0841dbb0 KM |
251 | if(hflag) |
252 | getleaves(d, *argv++); | |
bcfabedf KM |
253 | else |
254 | allocxtr(d, *argv++, XINUSE); | |
0841dbb0 | 255 | } |
7d4dda01 KM |
256 | |
257 | ||
0841dbb0 KM |
258 | if(dumpnum > 1) |
259 | tcom.mt_op = MTBSF; | |
260 | else tcom.mt_op = MTREW; | |
261 | tcom.mt_count = 1; | |
7d4dda01 KM |
262 | |
263 | newvol: | |
0841dbb0 KM |
264 | flsht(); |
265 | ioctl(mt,MTIOCTOP,&tcom); | |
bcfabedf | 266 | if (dumpnum > 1) { |
0841dbb0 KM |
267 | tcom.mt_op = MTFSF; |
268 | tcom.mt_count = 1; | |
7d4dda01 | 269 | ioctl(mt,MTIOCTOP,&tcom); |
0841dbb0 KM |
270 | } |
271 | lseek(mt, (long)0, 0); | |
7d4dda01 KM |
272 | |
273 | ||
274 | getvol: | |
0841dbb0 KM |
275 | fprintf(stderr, "Mount desired tape volume: Specify volume #: "); |
276 | if (gets(tbf) == NULL) | |
277 | return; | |
278 | volno = atoi(tbf); | |
279 | if (volno <= 0) { | |
280 | fprintf(stderr, "Volume numbers are positive numerics\n"); | |
281 | goto getvol; | |
282 | } | |
283 | if (readhdr(&spcl) == 0) { | |
284 | fprintf(stderr, "tape is not dump tape\n"); | |
285 | goto newvol; | |
286 | } | |
287 | if (checkvol(&spcl, volno) == 0) { | |
288 | fprintf(stderr, "Wrong volume (%d)\n", spcl.c_volume); | |
289 | goto newvol; | |
290 | } | |
7d4dda01 | 291 | rbits: |
0841dbb0 KM |
292 | while (gethead(&spcl) == 0) |
293 | ; | |
294 | if (checktype(&spcl, TS_INODE) == 1) { | |
295 | fprintf(stderr, "Can't find inode mask!\n"); | |
296 | goto newvol; | |
297 | } | |
298 | if (checktype(&spcl, TS_BITS) == 0) | |
299 | goto rbits; | |
300 | readbits(dumpmap); | |
301 | while (xtrcnt > 0) { | |
302 | again: | |
303 | if (ishead(&spcl) == 0) | |
304 | while(gethead(&spcl) == 0) | |
305 | ; | |
306 | if (checktype(&spcl, TS_END) == 1) { | |
307 | fprintf(stderr, "end of tape\n"); | |
308 | break; | |
7d4dda01 | 309 | } |
0841dbb0 KM |
310 | if (checktype(&spcl, TS_INODE) == 0) { |
311 | gethead(&spcl); | |
312 | goto again; | |
7d4dda01 | 313 | } |
0841dbb0 KM |
314 | d = spcl.c_inumber; |
315 | for (xp = xtrlist[INOHASH(d)]; xp; xp = xp->x_next) { | |
316 | if (d != xp->x_ino) | |
317 | continue; | |
318 | if (xp->x_flags & XLINKED) | |
319 | continue; | |
320 | xp->x_timep[0] = spcl.c_dinode.di_atime; | |
321 | xp->x_timep[1] = spcl.c_dinode.di_mtime; | |
322 | mode = spcl.c_dinode.di_mode; | |
323 | if (mflag) | |
bcfabedf | 324 | strcpy(name, xp->x_name); |
0841dbb0 KM |
325 | else |
326 | sprintf(name, "%u", xp->x_ino); | |
327 | switch (mode & IFMT) { | |
328 | default: | |
bcfabedf | 329 | fprintf(stderr, "%s: unknown file type\n", name); |
0841dbb0 KM |
330 | xp->x_flags |= XTRACTD; |
331 | xtrcnt--; | |
332 | goto skipfile; | |
333 | case IFCHR: | |
334 | case IFBLK: | |
bcfabedf | 335 | fprintf(stdout, "extract special file %s\n", name); |
0841dbb0 KM |
336 | if (xmknod(name, mode, spcl.c_dinode.di_rdev)) { |
337 | fprintf(stderr, "%s: cannot create special file\n", name); | |
338 | xp->x_flags |= XTRACTD; | |
339 | xtrcnt--; | |
340 | goto skipfile; | |
19ac1bc8 | 341 | } |
0841dbb0 KM |
342 | getfile(null, null, spcl.c_dinode.di_size); |
343 | break; | |
344 | case IFDIR: | |
345 | if (mflag) { | |
bcfabedf | 346 | fprintf(stdout, "extract directory %s\n", name); |
0841dbb0 | 347 | strncat(name, "/.", BUFSIZ); |
bcfabedf KM |
348 | checkdir(name); |
349 | xchown(xp->x_name, spcl.c_dinode.di_uid, spcl.c_dinode.di_gid); | |
0841dbb0 KM |
350 | getfile(null, null, spcl.c_dinode.di_size); |
351 | break; | |
352 | } | |
353 | /* else fall through */ | |
354 | case IFREG: | |
bcfabedf | 355 | fprintf(stdout, "extract file %s\n", name); |
0841dbb0 KM |
356 | if ((ofile = xcreat(name, 0666)) < 0) { |
357 | fprintf(stderr, "%s: cannot create file\n", name); | |
358 | xp->x_flags |= XTRACTD; | |
359 | xtrcnt--; | |
360 | goto skipfile; | |
7d4dda01 | 361 | } |
0841dbb0 KM |
362 | xchown(name, spcl.c_dinode.di_uid, spcl.c_dinode.di_gid); |
363 | getfile(xtrfile, skip, spcl.c_dinode.di_size); | |
364 | xclose(ofile); | |
365 | break; | |
7d4dda01 | 366 | } |
0841dbb0 KM |
367 | xchmod(name, mode); |
368 | xutime(name, xp->x_timep); | |
369 | xp->x_flags |= XTRACTD; | |
370 | xtrcnt--; | |
371 | goto finished; | |
372 | } | |
373 | skipfile: | |
374 | getfile(null, null, spcl.c_dinode.di_size); | |
003a2a9e | 375 | finished: |
0841dbb0 KM |
376 | ; |
377 | } | |
378 | if (xtrcnt == 0 && !mflag) | |
379 | return; | |
380 | for (xpp = xtrlist; xpp < &xtrlist[MAXINO]; xpp++) { | |
381 | for (xp = *xpp; xp; xp = xp->x_next) { | |
382 | if (mflag && (xp->x_flags & XISDIR)) | |
383 | xutime(xp->x_name, xp->x_timep); | |
384 | if (xp->x_flags & XTRACTD) | |
385 | continue; | |
386 | if ((xp->x_flags & XLINKED) == 0) { | |
387 | fprintf(stderr, "cannot find file %s\n", | |
388 | xp->x_name); | |
389 | continue; | |
390 | } | |
bcfabedf KM |
391 | if (!mflag) |
392 | continue; | |
393 | fprintf(stdout, "link %s to %s\n", | |
394 | xp->x_linkedto->x_name, xp->x_name); | |
0841dbb0 | 395 | if (xlink(xp->x_linkedto->x_name, xp->x_name) < 0) |
bcfabedf KM |
396 | fprintf(stderr, "link %s to %s failed\n", |
397 | xp->x_linkedto->x_name, xp->x_name); | |
7d4dda01 | 398 | } |
0841dbb0 KM |
399 | } |
400 | } | |
7d4dda01 | 401 | #endif |
0841dbb0 KM |
402 | |
403 | restorfiles(command, argv) | |
404 | char command; | |
405 | char **argv; | |
406 | { | |
407 | int rstrfile(), rstrskip(); | |
408 | register struct dinode *dp; | |
409 | register struct inode *ip; | |
410 | struct fs *fs; | |
411 | int mode; | |
412 | char mount[BUFSIZ + 1]; | |
413 | char *ptr[2]; | |
414 | ||
7d4dda01 | 415 | #ifndef STANDALONE |
0841dbb0 KM |
416 | mount[0] = '\0'; |
417 | strcpy(mount, "MOUNT="); | |
418 | strncat(mount, *argv, BUFSIZ); | |
419 | ptr[0] = mount; | |
420 | ptr[1] = 0; | |
421 | xmount(ptr); | |
422 | iput(u.u_cdir); /* release root inode */ | |
423 | iput(u.u_rdir); /* release root inode */ | |
424 | mounted++; | |
7d4dda01 | 425 | #else |
0841dbb0 KM |
426 | do { |
427 | fprintf(stderr, "Disk? "); | |
428 | gets(mount); | |
429 | fi = open(mount, 2); | |
430 | } while (fi == -1); | |
7d4dda01 KM |
431 | #endif |
432 | #ifndef STANDALONE | |
0841dbb0 KM |
433 | if (command == 'R') { |
434 | fprintf(stderr, "Enter starting volume number: "); | |
435 | if (gets(tbf) == EOF) { | |
436 | volno = 1; | |
437 | fprintf(stderr, "\n"); | |
7d4dda01 KM |
438 | } |
439 | else | |
0841dbb0 KM |
440 | volno = atoi(tbf); |
441 | } | |
442 | else | |
7d4dda01 | 443 | #endif |
0841dbb0 KM |
444 | volno = 1; |
445 | fprintf(stderr, "Last chance before scribbling on %s. ", | |
7d4dda01 | 446 | #ifdef STANDALONE |
0841dbb0 | 447 | "disk"); |
7d4dda01 | 448 | #else |
0841dbb0 | 449 | *argv); |
7d4dda01 | 450 | #endif |
0841dbb0 KM |
451 | while (getchar() != '\n'); |
452 | fs = getfs(dev); | |
453 | maxi = fs->fs_ipg * fs->fs_ncg; | |
454 | if (readhdr(&spcl) == 0) { | |
455 | fprintf(stderr, "Missing volume record\n"); | |
456 | done(1); | |
457 | } | |
458 | if (checkvol(&spcl, volno) == 0) { | |
459 | fprintf(stderr, "Tape is not volume %d\n", volno); | |
460 | done(1); | |
461 | } | |
462 | gethead(&spcl); | |
463 | for (;;) { | |
464 | ragain: | |
465 | if (ishead(&spcl) == 0) { | |
466 | fprintf(stderr, "Missing header block\n"); | |
467 | while (gethead(&spcl) == 0) | |
468 | ; | |
469 | eflag++; | |
7d4dda01 | 470 | } |
0841dbb0 KM |
471 | if (checktype(&spcl, TS_END) == 1) { |
472 | fprintf(stderr, "End of tape\n"); | |
473 | close(mt); | |
474 | return; | |
7d4dda01 | 475 | } |
0841dbb0 KM |
476 | if (checktype(&spcl, TS_CLRI) == 1) { |
477 | readbits(clrimap); | |
478 | for (ino = 1; ino <= maxi; ino++) | |
479 | if (BIT(ino, clrimap) == 0) { | |
480 | if (!iexist(dev, ino)) | |
481 | continue; | |
482 | ip = iget(dev, ino); | |
483 | if (ip == NULL) { | |
484 | fprintf(stderr, "can't find inode %u\n", ino); | |
485 | done(1); | |
7d4dda01 | 486 | } |
0841dbb0 KM |
487 | ip->i_nlink = 0; |
488 | ip->i_flag |= ICHG; | |
489 | iput(ip); | |
003a2a9e | 490 | } |
0841dbb0 KM |
491 | goto ragain; |
492 | } | |
493 | if (checktype(&spcl, TS_BITS) == 1) { | |
494 | readbits(dumpmap); | |
495 | goto ragain; | |
496 | } | |
497 | if (checktype(&spcl, TS_INODE) == 0) { | |
498 | fprintf(stderr, "Unknown header type\n"); | |
499 | eflag++; | |
500 | gethead(&spcl); | |
501 | goto ragain; | |
502 | } | |
503 | ino = spcl.c_inumber; | |
504 | if (eflag) | |
505 | fprintf(stderr, "Resynced at inode %u\n", ino); | |
506 | eflag = 0; | |
507 | if (ino > maxi) { | |
508 | fprintf(stderr, "%u: ilist too small\n", ino); | |
509 | gethead(&spcl); | |
510 | goto ragain; | |
511 | } | |
512 | if (iexist(dev, ino)) { | |
513 | ip = iget(dev, ino); | |
514 | if (ip == NULL) { | |
515 | fprintf(stderr, "can't find inode %u\n", | |
516 | ino); | |
003a2a9e KM |
517 | done(1); |
518 | } | |
0841dbb0 | 519 | ip->i_nlink = 0; |
003a2a9e KM |
520 | ip->i_flag |= ICHG; |
521 | iput(ip); | |
7d4dda01 | 522 | } |
0841dbb0 KM |
523 | dp = &spcl.c_dinode; |
524 | ip = ialloc(dev, ino, dp->di_mode); | |
525 | if (ip == NULL || ip->i_number != ino) { | |
526 | fprintf(stderr, "can't create inode %u\n", ino); | |
527 | done(1); | |
528 | } | |
529 | ip->i_mode = mode = dp->di_mode; | |
530 | ip->i_nlink = dp->di_nlink; | |
531 | ip->i_uid = dp->di_uid; | |
532 | ip->i_gid = dp->di_gid; | |
533 | ip->i_atime = dp->di_atime; | |
534 | ip->i_mtime = dp->di_mtime; | |
535 | ip->i_ctime = dp->di_ctime; | |
536 | if ((ip->i_mode & IFMT) == IFCHR || | |
537 | (ip->i_mode & IFMT) == IFBLK) | |
538 | ip->i_rdev = dp->di_rdev; | |
539 | ip->i_size = 0; | |
540 | cur_ip = ip; | |
541 | u.u_offset = 0; | |
542 | u.u_segflg = 1; | |
543 | getfile(rstrfile, rstrskip, dp->di_size); | |
544 | ip->i_mode = mode; | |
545 | ip->i_flag &= ~(IUPD|IACC); | |
546 | ip->i_flag |= ICHG; | |
547 | iput(ip); | |
7d4dda01 KM |
548 | } |
549 | } | |
550 | ||
551 | /* | |
552 | * Read the tape, bulding up a directory structure for extraction | |
553 | * by name | |
554 | */ | |
555 | #ifndef STANDALONE | |
556 | pass1() | |
557 | { | |
19ac1bc8 | 558 | register int i; |
0841dbb0 KM |
559 | register struct dinode *ip; |
560 | struct direct nulldir; | |
7d4dda01 KM |
561 | int putdir(), null(); |
562 | ||
0841dbb0 KM |
563 | nulldir.d_ino = 0; |
564 | strncpy(nulldir.d_name, "/", DIRSIZ); | |
7d4dda01 | 565 | while (gethead(&spcl) == 0) { |
003a2a9e | 566 | fprintf(stderr, "Can't find directory header!\n"); |
7d4dda01 KM |
567 | } |
568 | for (;;) { | |
569 | if (checktype(&spcl, TS_BITS) == 1) { | |
570 | readbits(dumpmap); | |
571 | continue; | |
572 | } | |
573 | if (checktype(&spcl, TS_CLRI) == 1) { | |
574 | readbits(clrimap); | |
575 | continue; | |
576 | } | |
577 | if (checktype(&spcl, TS_INODE) == 0) { | |
578 | finish: | |
7d4dda01 KM |
579 | /* |
580 | close(mt); | |
581 | */ | |
0841dbb0 | 582 | freopen(dirfile, "r", df); |
7d4dda01 KM |
583 | return; |
584 | } | |
585 | ip = &spcl.c_dinode; | |
586 | i = ip->di_mode & IFMT; | |
587 | if (i != IFDIR) { | |
588 | goto finish; | |
589 | } | |
bcfabedf | 590 | allocinotab(spcl.c_inumber, seekpt); |
003a2a9e | 591 | getfile(putdir, null, spcl.c_dinode.di_size); |
0841dbb0 | 592 | putent(&nulldir); |
7d4dda01 KM |
593 | } |
594 | } | |
595 | #endif | |
596 | ||
bcfabedf KM |
597 | /* |
598 | * Put the directory entries in the directory file | |
599 | */ | |
600 | #ifndef STANDALONE | |
601 | putdir(buf, size) | |
602 | char *buf; | |
603 | int size; | |
604 | { | |
605 | register struct direct *dp; | |
606 | register int i; | |
607 | ||
608 | for (dp = (struct direct *)buf, i = 0; i < size; dp++, i += sizeof(*dp)) | |
609 | if (dp->d_ino != 0) | |
610 | putent(dp); | |
611 | } | |
612 | ||
613 | putent(dp) | |
614 | struct direct *dp; | |
615 | { | |
616 | fwrite(dp, 1, sizeof(struct direct), df); | |
617 | seekpt = ftell(df); | |
618 | } | |
619 | ||
620 | /* | |
621 | * Recursively find names and inumbers of all files in subtree | |
622 | * pname and put them in xtrlist[] | |
623 | */ | |
624 | getleaves(ino, pname) | |
625 | ino_t ino; | |
626 | char *pname; | |
627 | { | |
628 | register struct inotab *itp; | |
629 | int namelen; | |
630 | daddr_t bpt; | |
631 | struct direct dir; | |
632 | char locname[BUFSIZ + 1]; | |
633 | ||
634 | if (BIT(ino, dumpmap) == 0) { | |
635 | fprintf(stdout, "%s: not on the tape\n", pname); | |
636 | return; | |
637 | } | |
638 | for (itp = inotab[INOHASH(ino)]; itp; itp = itp->t_next) { | |
639 | if (itp->t_ino != ino) | |
640 | continue; | |
641 | /* | |
642 | * pname is a directory name | |
643 | */ | |
644 | allocxtr(ino, pname, XISDIR); | |
645 | /* | |
646 | * begin search through the directory | |
647 | * skipping over "." and ".." | |
648 | */ | |
649 | strncpy(locname, pname, BUFSIZ); | |
650 | strncat(locname, "/", BUFSIZ); | |
651 | namelen = strlen(locname); | |
652 | fseek(df, itp->t_seekpt, 0); | |
653 | fread(&dir, 1, sizeof(struct direct), df); | |
654 | fread(&dir, 1, sizeof(struct direct), df); | |
655 | fread(&dir, 1, sizeof(struct direct), df); | |
656 | bpt = ftell(df); | |
657 | /* | |
658 | * "/" signals end of directory | |
659 | */ | |
660 | while (strncmp(dir.d_name, "/", DIRSIZ)) { | |
661 | locname[namelen] = '\0'; | |
662 | strncat(locname, dir.d_name, DIRSIZ); | |
663 | if (strlen(locname) >= BUFSIZ) { | |
664 | fprintf(stderr, "%s: name exceedes %d char\n", | |
665 | locname, BUFSIZ); | |
666 | continue; | |
667 | } | |
668 | getleaves(dir.d_ino, locname); | |
669 | fseek(df, bpt, 0); | |
670 | fread(&dir, 1, sizeof(struct direct), df); | |
671 | bpt = ftell(df); | |
672 | } | |
673 | return; | |
674 | } | |
675 | /* | |
676 | * locname is name of a simple file | |
677 | */ | |
678 | allocxtr(ino, pname, XINUSE); | |
679 | } | |
680 | ||
681 | /* | |
682 | * Search the directory tree rooted at inode ROOTINO | |
683 | * for the path pointed at by n | |
684 | */ | |
685 | psearch(n) | |
686 | char *n; | |
687 | { | |
688 | register char *cp, *cp1; | |
689 | char c; | |
690 | ||
691 | ino = ROOTINO; | |
692 | if (*(cp = n) == '/') | |
693 | cp++; | |
694 | next: | |
695 | cp1 = cp + 1; | |
696 | while (*cp1 != '/' && *cp1) | |
697 | cp1++; | |
698 | c = *cp1; | |
699 | *cp1 = 0; | |
700 | ino = search(ino, cp); | |
701 | if (ino == 0) { | |
702 | *cp1 = c; | |
703 | return(0); | |
704 | } | |
705 | *cp1 = c; | |
706 | if (c == '/') { | |
707 | cp = cp1+1; | |
708 | goto next; | |
709 | } | |
710 | return(ino); | |
711 | } | |
712 | ||
713 | /* | |
714 | * search the directory inode ino | |
715 | * looking for entry cp | |
716 | */ | |
717 | ino_t | |
718 | search(inum, cp) | |
719 | ino_t inum; | |
720 | char *cp; | |
721 | { | |
722 | struct direct dir; | |
723 | register struct inotab *itp; | |
724 | ||
725 | for (itp = inotab[INOHASH(inum)]; itp; itp = itp->t_next) | |
726 | if (itp->t_ino == inum) | |
727 | goto found; | |
728 | return(0); | |
729 | found: | |
730 | fseek(df, itp->t_seekpt, 0); | |
731 | do { | |
732 | fread(&dir, 1, sizeof(struct direct), df); | |
733 | if (!strncmp(dir.d_name, "/", DIRSIZ)) | |
734 | return(0); | |
735 | } while (strncmp(dir.d_name, cp, DIRSIZ)); | |
736 | return(dir.d_ino); | |
737 | } | |
738 | #endif | |
739 | ||
7d4dda01 KM |
740 | /* |
741 | * Do the file extraction, calling the supplied functions | |
742 | * with the blocks | |
743 | */ | |
003a2a9e KM |
744 | getfile(f1, f2, size) |
745 | int (*f2)(), (*f1)(); | |
746 | long size; | |
7d4dda01 | 747 | { |
19ac1bc8 | 748 | register int i; |
19ac1bc8 | 749 | char buf[BLKING * FRAG][TP_BSIZE]; |
0841dbb0 KM |
750 | union u_spcl addrblk; |
751 | # define addrblock addrblk.s_spcl | |
7d4dda01 | 752 | |
0841dbb0 | 753 | addrblock = spcl; |
7d4dda01 | 754 | for (;;) { |
0841dbb0 KM |
755 | for (i = 0; i < addrblock.c_count; i++) { |
756 | if (addrblock.c_addr[i]) { | |
19ac1bc8 KM |
757 | readtape(&buf[curblk++][0]); |
758 | if (curblk == BLKING * FRAG) { | |
759 | (*f1)(buf, size > TP_BSIZE ? | |
760 | (long) (BLKING * FRAG * TP_BSIZE) : | |
761 | (curblk - 1) * TP_BSIZE + size); | |
762 | curblk = 0; | |
763 | } | |
7d4dda01 KM |
764 | } |
765 | else { | |
19ac1bc8 KM |
766 | if (curblk > 0) { |
767 | (*f1)(buf, size > TP_BSIZE ? | |
768 | (long) (curblk * TP_BSIZE) : | |
769 | (curblk - 1) * TP_BSIZE + size); | |
770 | curblk = 0; | |
771 | } | |
772 | (*f2)(clearedbuf, size > TP_BSIZE ? (long) TP_BSIZE : size); | |
7d4dda01 | 773 | } |
19ac1bc8 | 774 | if ((size -= TP_BSIZE) <= 0) { |
7d4dda01 KM |
775 | eloop: |
776 | while (gethead(&spcl) == 0) | |
777 | ; | |
778 | if (checktype(&spcl, TS_ADDR) == 1) | |
779 | goto eloop; | |
19ac1bc8 | 780 | goto out; |
7d4dda01 KM |
781 | } |
782 | } | |
0841dbb0 | 783 | if (gethead(&addrblock) == 0) { |
19ac1bc8 | 784 | fprintf(stderr, "Missing address (header) block, ino%u\n", ino); |
003a2a9e KM |
785 | goto eloop; |
786 | } | |
0841dbb0 KM |
787 | if (checktype(&addrblock, TS_ADDR) == 0) { |
788 | spcl = addrblock; | |
19ac1bc8 | 789 | goto out; |
003a2a9e | 790 | } |
7d4dda01 | 791 | } |
19ac1bc8 KM |
792 | out: |
793 | if (curblk > 0) { | |
794 | (*f1)(buf, (curblk * TP_BSIZE) + size); | |
795 | curblk = 0; | |
796 | } | |
7d4dda01 KM |
797 | } |
798 | ||
bcfabedf KM |
799 | /* |
800 | * The next routines are called during file extraction to | |
801 | * put the data into the right form and place. | |
802 | */ | |
803 | #ifndef STANDALONE | |
804 | xtrfile(buf, size) | |
805 | char *buf; | |
806 | long size; | |
807 | { | |
808 | if (xwrite(ofile, buf, (int) size) == -1) { | |
809 | perror("extract write:"); | |
810 | done(1); | |
811 | } | |
812 | } | |
813 | ||
814 | skip(buf, size) | |
815 | char *buf; | |
816 | long size; | |
817 | { | |
818 | if (xseek(ofile, size, 1) == -1) { | |
819 | perror("extract seek:"); | |
820 | done(1); | |
821 | } | |
822 | } | |
823 | #endif | |
824 | ||
825 | ||
826 | rstrfile(buf, size) | |
827 | char *buf; | |
828 | long size; | |
829 | { | |
830 | u.u_base = buf; | |
831 | u.u_count = size; | |
832 | writei(cur_ip); | |
833 | if (u.u_error) { | |
834 | perror("restor write:"); | |
835 | done(1); | |
836 | } | |
837 | } | |
838 | ||
839 | rstrskip(buf, size) | |
840 | char *buf; | |
841 | long size; | |
842 | { | |
843 | u.u_offset += size; | |
844 | } | |
845 | ||
846 | null() {;} | |
847 | ||
7d4dda01 | 848 | /* |
19ac1bc8 | 849 | * Do the tape i/o, dealing with volume changes |
7d4dda01 KM |
850 | * etc.. |
851 | */ | |
852 | readtape(b) | |
003a2a9e | 853 | char *b; |
7d4dda01 | 854 | { |
19ac1bc8 | 855 | register int i; |
0841dbb0 | 856 | struct s_spcl tmpbuf; |
7d4dda01 KM |
857 | |
858 | if (bct >= NTREC) { | |
859 | for (i = 0; i < NTREC; i++) | |
19ac1bc8 | 860 | ((struct s_spcl *)&tbf[i*TP_BSIZE])->c_magic = 0; |
7d4dda01 | 861 | bct = 0; |
19ac1bc8 | 862 | if ((i = read(mt, tbf, NTREC*TP_BSIZE)) < 0) { |
003a2a9e | 863 | perror("Tape read error"); |
7d4dda01 | 864 | eflag++; |
003a2a9e | 865 | done(1); |
7d4dda01 KM |
866 | } |
867 | if (i == 0) { | |
868 | bct = NTREC + 1; | |
869 | volno++; | |
870 | loop: | |
871 | flsht(); | |
872 | close(mt); | |
003a2a9e | 873 | fprintf(stderr, "Mount volume %d\n", volno); |
7d4dda01 KM |
874 | while (getchar() != '\n') |
875 | ; | |
876 | if ((mt = open(magtape, 0)) == -1) { | |
003a2a9e | 877 | fprintf(stderr, "Cannot open tape!\n"); |
7d4dda01 KM |
878 | goto loop; |
879 | } | |
880 | if (readhdr(&tmpbuf) == 0) { | |
003a2a9e | 881 | fprintf(stderr, "Not a dump tape.Try again\n"); |
7d4dda01 KM |
882 | goto loop; |
883 | } | |
884 | if (checkvol(&tmpbuf, volno) == 0) { | |
003a2a9e | 885 | fprintf(stderr, "Wrong tape. Try again\n"); |
7d4dda01 KM |
886 | goto loop; |
887 | } | |
888 | readtape(b); | |
889 | return; | |
890 | } | |
891 | } | |
19ac1bc8 | 892 | copy(&tbf[(bct++*TP_BSIZE)], b, TP_BSIZE); |
7d4dda01 KM |
893 | } |
894 | ||
895 | flsht() | |
896 | { | |
897 | bct = NTREC+1; | |
898 | } | |
899 | ||
900 | copy(f, t, s) | |
003a2a9e | 901 | register char *f, *t; |
7d4dda01 | 902 | { |
19ac1bc8 | 903 | register int i; |
7d4dda01 KM |
904 | |
905 | i = s; | |
906 | do | |
907 | *t++ = *f++; | |
908 | while (--i); | |
909 | } | |
910 | ||
bcfabedf KM |
911 | checkvol(b, t) |
912 | struct s_spcl *b; | |
913 | int t; | |
7d4dda01 | 914 | { |
bcfabedf KM |
915 | if (b->c_volume == t) |
916 | return(1); | |
7d4dda01 | 917 | return(0); |
7d4dda01 KM |
918 | } |
919 | ||
bcfabedf KM |
920 | readhdr(b) |
921 | struct s_spcl *b; | |
7d4dda01 | 922 | { |
bcfabedf | 923 | if (gethead(b) == 0) |
7d4dda01 | 924 | return(0); |
bcfabedf KM |
925 | if (checktype(b, TS_TAPE) == 0) |
926 | return(0); | |
927 | return(1); | |
7d4dda01 | 928 | } |
7d4dda01 | 929 | |
7d4dda01 KM |
930 | /* |
931 | * read the tape into buf, then return whether or | |
932 | * or not it is a header block. | |
933 | */ | |
934 | gethead(buf) | |
0841dbb0 | 935 | struct s_spcl *buf; |
7d4dda01 KM |
936 | { |
937 | readtape((char *)buf); | |
0841dbb0 | 938 | if (buf->c_magic != MAGIC || checksum((int *)buf) == 0) |
7d4dda01 KM |
939 | return(0); |
940 | return(1); | |
941 | } | |
942 | ||
943 | /* | |
944 | * return whether or not the buffer contains a header block | |
945 | */ | |
946 | ishead(buf) | |
0841dbb0 | 947 | struct s_spcl *buf; |
7d4dda01 | 948 | { |
0841dbb0 | 949 | if (buf->c_magic != MAGIC || checksum((int *)buf) == 0) |
7d4dda01 KM |
950 | return(0); |
951 | return(1); | |
952 | } | |
953 | ||
954 | checktype(b, t) | |
0841dbb0 | 955 | struct s_spcl *b; |
003a2a9e | 956 | int t; |
7d4dda01 | 957 | { |
0841dbb0 | 958 | return(b->c_type == t); |
7d4dda01 KM |
959 | } |
960 | ||
961 | ||
962 | checksum(b) | |
003a2a9e | 963 | int *b; |
7d4dda01 | 964 | { |
19ac1bc8 | 965 | register int i, j; |
7d4dda01 | 966 | |
19ac1bc8 | 967 | j = sizeof(union u_spcl) / sizeof(int); |
7d4dda01 KM |
968 | i = 0; |
969 | do | |
970 | i += *b++; | |
971 | while (--j); | |
972 | if (i != CHECKSUM) { | |
19ac1bc8 | 973 | fprintf(stderr, "Checksum error %o, ino %u\n", i, ino); |
7d4dda01 KM |
974 | return(0); |
975 | } | |
976 | return(1); | |
977 | } | |
978 | ||
003a2a9e KM |
979 | /* |
980 | * tell whether an inode is allocated | |
981 | * this is drawn from ialloccg in sys/alloc.c | |
982 | */ | |
983 | iexist(dev, ino) | |
984 | dev_t dev; | |
985 | ino_t ino; | |
7d4dda01 | 986 | { |
003a2a9e KM |
987 | register struct fs *fs; |
988 | register struct cg *cgp; | |
989 | register struct buf *bp; | |
990 | int cg; | |
991 | ||
992 | fs = getfs(dev); | |
993 | if ((unsigned)ino >= fs->fs_ipg*fs->fs_ncg) | |
994 | return (0); | |
995 | cg = itog(ino, fs); | |
996 | bp = bread(dev, cgtod(cg, fs), BSIZE); | |
997 | if (bp->b_flags & B_ERROR) | |
998 | return(0); | |
999 | cgp = bp->b_un.b_cg; | |
1000 | ino %= fs->fs_ipg; | |
1001 | if (isclr(cgp->cg_iused, ino)) { | |
1002 | brelse(bp); | |
1003 | return(0); | |
1004 | } | |
1005 | brelse(bp); | |
1006 | return (1); | |
7d4dda01 KM |
1007 | } |
1008 | ||
7d4dda01 KM |
1009 | /* |
1010 | * read a bit mask from the tape into m. | |
1011 | */ | |
1012 | readbits(m) | |
003a2a9e | 1013 | short *m; |
7d4dda01 | 1014 | { |
19ac1bc8 | 1015 | register int i; |
7d4dda01 KM |
1016 | |
1017 | i = spcl.c_count; | |
1018 | ||
1019 | while (i--) { | |
1020 | readtape((char *) m); | |
19ac1bc8 | 1021 | m += (TP_BSIZE/(MLEN/BITS)); |
7d4dda01 KM |
1022 | } |
1023 | while (gethead(&spcl) == 0) | |
1024 | ; | |
1025 | } | |
1026 | ||
003a2a9e KM |
1027 | done(exitcode) |
1028 | int exitcode; | |
7d4dda01 KM |
1029 | { |
1030 | #ifndef STANDALONE | |
1031 | unlink(dirfile); | |
1032 | #endif | |
003a2a9e KM |
1033 | if (mounted) |
1034 | xumount(); | |
1035 | exit(exitcode); | |
7d4dda01 KM |
1036 | } |
1037 | ||
bcfabedf | 1038 | allocinotab(ino, seekpt) |
0841dbb0 | 1039 | ino_t ino; |
bcfabedf | 1040 | daddr_t seekpt; |
7d4dda01 | 1041 | { |
0841dbb0 | 1042 | register struct inotab *itp; |
19ac1bc8 | 1043 | |
0841dbb0 KM |
1044 | itp = (struct inotab *)calloc(1, sizeof(struct inotab)); |
1045 | itp->t_next = inotab[INOHASH(ino)]; | |
1046 | inotab[INOHASH(ino)] = itp; | |
1047 | itp->t_ino = ino; | |
bcfabedf | 1048 | itp->t_seekpt = seekpt; |
7d4dda01 KM |
1049 | } |
1050 | ||
bcfabedf | 1051 | allocxtr(ino, name, flags) |
0841dbb0 | 1052 | ino_t ino; |
bcfabedf KM |
1053 | char *name; |
1054 | char flags; | |
7d4dda01 | 1055 | { |
bcfabedf | 1056 | register struct xtrlist *xp, *pxp; |
0841dbb0 | 1057 | |
bcfabedf | 1058 | xp = (struct xtrlist *)calloc(1, sizeof(struct xtrlist) + strlen(name)); |
0841dbb0 KM |
1059 | xp->x_next = xtrlist[INOHASH(ino)]; |
1060 | xtrlist[INOHASH(ino)] = xp; | |
1061 | xp->x_ino = ino; | |
bcfabedf | 1062 | strcpy(xp->x_name, name); |
0841dbb0 | 1063 | xtrcnt++; |
bcfabedf KM |
1064 | xp->x_flags = flags; |
1065 | for (pxp = xp->x_next; pxp; pxp = pxp->x_next) | |
1066 | if (pxp->x_ino == ino && (pxp->x_flags & XLINKED) == 0) { | |
1067 | xp->x_flags |= XLINKED; | |
1068 | xp->x_linkedto = pxp; | |
1069 | xtrcnt--; | |
1070 | break; | |
1071 | } | |
1072 | if (xp->x_flags & XLINKED) | |
1073 | fprintf(stdout, "%s: linked to %s\n", xp->x_name, pxp->x_name); | |
1074 | else if (xp->x_flags & XISDIR) | |
1075 | fprintf(stdout, "%s: directory inode %u\n", xp->x_name, ino); | |
1076 | else | |
1077 | fprintf(stdout, "%s: inode %u\n", xp->x_name, ino); | |
7d4dda01 KM |
1078 | } |
1079 | ||
1080 | /* | |
1081 | * Check for access into each directory in the pathname of an extracted | |
1082 | * file and create such a directory if needed in preparation for moving | |
1083 | * the file to its proper home. | |
1084 | */ | |
1085 | checkdir(name) | |
003a2a9e | 1086 | register char *name; |
7d4dda01 KM |
1087 | { |
1088 | register char *cp; | |
1089 | int i; | |
19ac1bc8 | 1090 | |
7d4dda01 KM |
1091 | for (cp = name; *cp; cp++) { |
1092 | if (*cp == '/') { | |
1093 | *cp = '\0'; | |
003a2a9e | 1094 | if (xaccess(name, 01) < 0) { |
7d4dda01 KM |
1095 | register int pid, rp; |
1096 | ||
003a2a9e | 1097 | xumount(); |
7d4dda01 | 1098 | if ((pid = fork()) == 0) { |
003a2a9e KM |
1099 | execl("/bin/xmkdir", "xmkdir", name, 0); |
1100 | execl("/usr/bin/xmkdir", "xmkdir", name, 0); | |
1101 | execl("./xmkdir", "xmkdir", name, 0); | |
1102 | fprintf(stderr, "xrestor: cannot find xmkdir!\n"); | |
7d4dda01 KM |
1103 | done(0); |
1104 | } | |
1105 | while ((rp = wait(&i)) >= 0 && rp != pid) | |
1106 | ; | |
003a2a9e | 1107 | xmount(envp); |
7d4dda01 KM |
1108 | } |
1109 | *cp = '/'; | |
1110 | } | |
1111 | } | |
1112 | } |