Commit | Line | Data |
---|---|---|
7d4dda01 KM |
1 | /* Copyright (c) 1981 Regents of the University of California */ |
2 | ||
b6407c9d | 3 | char version[] = "@(#)main.c 1.8 %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" | |
b88e54cb KM |
32 | #include <sys/mtio.h> |
33 | ||
34 | struct odirect { | |
35 | u_short d_ino; | |
36 | char d_name[DIRSIZ]; | |
37 | }; | |
7d4dda01 | 38 | |
b6407c9d KM |
39 | #define MWORD(m,i) (m[(unsigned)(i-1)/NBBY]) |
40 | #define MBIT(i) (1<<((unsigned)(i-1)%NBBY)) | |
7d4dda01 KM |
41 | #define BIS(i,w) (MWORD(w,i) |= MBIT(i)) |
42 | #define BIC(i,w) (MWORD(w,i) &= ~MBIT(i)) | |
43 | #define BIT(i,w) (MWORD(w,i) & MBIT(i)) | |
44 | ||
003a2a9e | 45 | ino_t ino, maxi; |
b88e54cb | 46 | struct inode *cur_ip; |
7d4dda01 | 47 | |
b88e54cb | 48 | int eflag = 0, hflag = 0, mflag = 0, cvtdir = 0; |
7d4dda01 | 49 | |
003a2a9e KM |
50 | char mounted = 0; |
51 | dev_t dev = 0; | |
7d4dda01 KM |
52 | char tapename[] = "/dev/rmt8"; |
53 | char *magtape = tapename; | |
b88e54cb KM |
54 | int mt; |
55 | int dumpnum = 1; | |
56 | int volno = 1; | |
57 | int curblk = 0; | |
58 | int bct = NTREC+1; | |
59 | char tbf[NTREC*TP_BSIZE]; | |
7d4dda01 KM |
60 | |
61 | #ifdef STANDALONE | |
62 | char mbuf[50]; | |
63 | #endif | |
64 | ||
7d4dda01 | 65 | daddr_t seekpt; |
0841dbb0 KM |
66 | FILE *df; |
67 | int ofile; | |
7d4dda01 KM |
68 | char dirfile[] = "rstXXXXXX"; |
69 | ||
0841dbb0 KM |
70 | #define INOHASH(val) (val % MAXINO) |
71 | struct inotab { | |
72 | struct inotab *t_next; | |
7d4dda01 KM |
73 | ino_t t_ino; |
74 | daddr_t t_seekpt; | |
0841dbb0 | 75 | } *inotab[MAXINO]; |
7d4dda01 | 76 | |
0841dbb0 | 77 | #define XISDIR 1 |
7d4dda01 KM |
78 | #define XTRACTD 2 |
79 | #define XINUSE 4 | |
0841dbb0 | 80 | #define XLINKED 8 |
7d4dda01 | 81 | struct xtrlist { |
0841dbb0 KM |
82 | struct xtrlist *x_next; |
83 | struct xtrlist *x_linkedto; | |
0841dbb0 | 84 | time_t x_timep[2]; |
bcfabedf | 85 | ino_t x_ino; |
0841dbb0 | 86 | char x_flags; |
bcfabedf KM |
87 | char x_name[1]; |
88 | /* actually longer */ | |
0841dbb0 | 89 | } *xtrlist[MAXINO]; |
19ac1bc8 | 90 | int xtrcnt = 0; |
7d4dda01 | 91 | |
b6407c9d KM |
92 | #ifdef STANDALONE |
93 | #define msiz 8192 | |
94 | char dumpmap[msiz]; | |
95 | char clrimap[msiz]; | |
96 | #else | |
97 | int msiz; | |
98 | char *dumpmap; | |
99 | char *clrimap; | |
100 | #endif | |
101 | ||
102 | char clearedbuf[MAXBSIZE]; | |
7d4dda01 | 103 | |
0841dbb0 | 104 | extern char *ctime(); |
bcfabedf | 105 | ino_t search(); |
003a2a9e | 106 | char **envp; |
7d4dda01 | 107 | |
003a2a9e KM |
108 | main(argc, argv, arge) |
109 | int argc; | |
110 | char *argv[]; | |
111 | char **arge; | |
7d4dda01 KM |
112 | { |
113 | register char *cp; | |
114 | char command; | |
003a2a9e | 115 | int (*signal())(); |
7d4dda01 KM |
116 | int done(); |
117 | ||
bcfabedf KM |
118 | if (signal(SIGINT, done) == SIG_IGN) |
119 | signal(SIGINT, SIG_IGN); | |
120 | if (signal(SIGTERM, done) == SIG_IGN) | |
121 | signal(SIGTERM, SIG_IGN); | |
7d4dda01 | 122 | #ifndef STANDALONE |
003a2a9e KM |
123 | envp = arge; |
124 | mktmp(dirfile); | |
7d4dda01 KM |
125 | if (argc < 2) { |
126 | usage: | |
0841dbb0 | 127 | fprintf(stderr, "Usage: restor x[s|m|h|v] file file..., restor r|R filesys, or restor t\n"); |
003a2a9e | 128 | done(1); |
7d4dda01 KM |
129 | } |
130 | argv++; | |
131 | argc -= 2; | |
132 | for (cp = *argv++; *cp; cp++) { | |
133 | switch (*cp) { | |
134 | case '-': | |
135 | break; | |
136 | case 'f': | |
137 | magtape = *argv++; | |
138 | argc--; | |
139 | break; | |
140 | /* s dumpnum (skip to) for multifile dump tapes */ | |
141 | case 's': | |
142 | dumpnum = atoi(*argv++); | |
143 | if(dumpnum <= 0) { | |
003a2a9e KM |
144 | fprintf(stderr, "Dump number must be a positive integer\n"); |
145 | done(1); | |
7d4dda01 KM |
146 | } |
147 | argc--; | |
148 | break; | |
149 | case 'h': | |
150 | hflag++; | |
151 | break; | |
152 | case 'm': | |
153 | mflag++; | |
154 | break; | |
155 | case 'r': | |
156 | case 'R': | |
157 | case 't': | |
158 | case 'x': | |
159 | command = *cp; | |
160 | break; | |
161 | default: | |
003a2a9e | 162 | fprintf(stderr, "Bad key character %c\n", *cp); |
7d4dda01 KM |
163 | goto usage; |
164 | } | |
165 | } | |
166 | if (command == 'x') { | |
0841dbb0 KM |
167 | df = fopen(dirfile, "w"); |
168 | if (df == 0) { | |
003a2a9e KM |
169 | fprintf(stderr, "restor: %s - cannot create directory temporary\n", dirfile); |
170 | done(1); | |
7d4dda01 | 171 | } |
003a2a9e KM |
172 | xmount(envp); |
173 | mounted++; | |
7d4dda01 KM |
174 | } |
175 | doit(command, argc, argv); | |
003a2a9e | 176 | done(0); |
7d4dda01 KM |
177 | #else |
178 | magtape = "tape"; | |
179 | doit('r', 1, 0); | |
180 | #endif | |
181 | } | |
182 | ||
183 | doit(command, argc, argv) | |
003a2a9e KM |
184 | char command; |
185 | int argc; | |
186 | char *argv[]; | |
7d4dda01 | 187 | { |
b88e54cb KM |
188 | struct mtop tcom; |
189 | ||
7d4dda01 | 190 | #ifndef STANDALONE |
7d4dda01 | 191 | if ((mt = open(magtape, 0)) < 0) { |
003a2a9e KM |
192 | fprintf(stderr, "%s: cannot open tape\n", magtape); |
193 | done(1); | |
7d4dda01 | 194 | } |
bcfabedf | 195 | if (dumpnum != 1) { |
7d4dda01 KM |
196 | tcom.mt_op = MTFSF; |
197 | tcom.mt_count = dumpnum -1; | |
bcfabedf | 198 | if (ioctl(mt,MTIOCTOP,&tcom) < 0) |
7d4dda01 KM |
199 | perror("ioctl MTFSF"); |
200 | } | |
201 | #else | |
202 | do { | |
003a2a9e | 203 | fprintf(stderr, "Tape? "); |
7d4dda01 KM |
204 | gets(mbuf); |
205 | mt = open(mbuf, 0); | |
206 | } while (mt == -1); | |
207 | magtape = mbuf; | |
208 | #endif | |
b6407c9d | 209 | blkclr(clearedbuf, MAXBSIZE); |
7d4dda01 KM |
210 | switch(command) { |
211 | #ifndef STANDALONE | |
212 | case 't': | |
213 | if (readhdr(&spcl) == 0) { | |
003a2a9e KM |
214 | fprintf(stderr, "Tape is not a dump tape\n"); |
215 | done(1); | |
7d4dda01 | 216 | } |
bcfabedf KM |
217 | fprintf(stdout, "Dump date: %s", ctime(&spcl.c_date)); |
218 | fprintf(stdout, "Dumped from: %s", ctime(&spcl.c_ddate)); | |
7d4dda01 KM |
219 | return; |
220 | case 'x': | |
0841dbb0 KM |
221 | extractfiles(argc, argv); |
222 | return; | |
b6407c9d | 223 | #endif |
0841dbb0 KM |
224 | case 'r': |
225 | case 'R': | |
226 | restorfiles(command, argv); | |
227 | return; | |
228 | } | |
0841dbb0 KM |
229 | } |
230 | ||
231 | #ifndef STANDALONE | |
232 | extractfiles(argc, argv) | |
233 | int argc; | |
234 | char **argv; | |
235 | { | |
bcfabedf | 236 | char *ststore(); |
0841dbb0 KM |
237 | register struct xtrlist *xp; |
238 | struct xtrlist **xpp; | |
b6407c9d | 239 | struct fs *fs; |
0841dbb0 | 240 | ino_t d; |
b88e54cb | 241 | int xtrfile(), xtrskip(), xtrcvtdir(), xtrcvtskip(), null(); |
bcfabedf KM |
242 | int mode; |
243 | char name[BUFSIZ + 1]; | |
0841dbb0 KM |
244 | |
245 | if (readhdr(&spcl) == 0) { | |
246 | fprintf(stderr, "Tape is not a dump tape\n"); | |
247 | done(1); | |
248 | } | |
249 | if (checkvol(&spcl, 1) == 0) { | |
250 | fprintf(stderr, "Tape is not volume 1 of the dump\n"); | |
251 | } | |
b6407c9d KM |
252 | fs = getfs(dev); |
253 | msiz = roundup(howmany(fs->fs_ipg * fs->fs_ncg, NBBY), TP_BSIZE); | |
254 | clrimap = (char *)calloc(msiz, sizeof(char)); | |
255 | dumpmap = (char *)calloc(msiz, sizeof(char)); | |
b88e54cb | 256 | pass1(1); /* This sets the various maps on the way by */ |
bcfabedf | 257 | while (argc--) { |
0841dbb0 | 258 | if ((d = psearch(*argv)) == 0 || BIT(d,dumpmap) == 0) { |
bcfabedf | 259 | fprintf(stdout, "%s: not on tape\n", *argv++); |
0841dbb0 | 260 | continue; |
7d4dda01 | 261 | } |
bcfabedf KM |
262 | if (mflag) |
263 | checkdir(*argv); | |
0841dbb0 KM |
264 | if(hflag) |
265 | getleaves(d, *argv++); | |
bcfabedf KM |
266 | else |
267 | allocxtr(d, *argv++, XINUSE); | |
0841dbb0 | 268 | } |
bcfabedf | 269 | if (dumpnum > 1) { |
b88e54cb KM |
270 | /* |
271 | * if this is a multi-dump tape we always start with | |
272 | * volume 1, so as to avoid accidentally restoring | |
273 | * from a different dump! | |
274 | */ | |
275 | resetmt(); | |
276 | dumpnum = 1; | |
277 | volno = 1; | |
278 | readhdr(&spcl); | |
279 | goto rbits; | |
0841dbb0 | 280 | } |
b88e54cb KM |
281 | newvol: |
282 | resetmt(); | |
7d4dda01 | 283 | getvol: |
b88e54cb | 284 | fprintf(stderr, "Mount desired tape volume; Specify volume #: "); |
0841dbb0 KM |
285 | if (gets(tbf) == NULL) |
286 | return; | |
287 | volno = atoi(tbf); | |
288 | if (volno <= 0) { | |
289 | fprintf(stderr, "Volume numbers are positive numerics\n"); | |
290 | goto getvol; | |
291 | } | |
292 | if (readhdr(&spcl) == 0) { | |
293 | fprintf(stderr, "tape is not dump tape\n"); | |
294 | goto newvol; | |
295 | } | |
296 | if (checkvol(&spcl, volno) == 0) { | |
297 | fprintf(stderr, "Wrong volume (%d)\n", spcl.c_volume); | |
298 | goto newvol; | |
299 | } | |
7d4dda01 | 300 | rbits: |
0841dbb0 KM |
301 | while (gethead(&spcl) == 0) |
302 | ; | |
303 | if (checktype(&spcl, TS_INODE) == 1) { | |
304 | fprintf(stderr, "Can't find inode mask!\n"); | |
305 | goto newvol; | |
306 | } | |
307 | if (checktype(&spcl, TS_BITS) == 0) | |
308 | goto rbits; | |
309 | readbits(dumpmap); | |
310 | while (xtrcnt > 0) { | |
311 | again: | |
312 | if (ishead(&spcl) == 0) | |
313 | while(gethead(&spcl) == 0) | |
314 | ; | |
315 | if (checktype(&spcl, TS_END) == 1) { | |
316 | fprintf(stderr, "end of tape\n"); | |
317 | break; | |
7d4dda01 | 318 | } |
0841dbb0 KM |
319 | if (checktype(&spcl, TS_INODE) == 0) { |
320 | gethead(&spcl); | |
321 | goto again; | |
7d4dda01 | 322 | } |
0841dbb0 KM |
323 | d = spcl.c_inumber; |
324 | for (xp = xtrlist[INOHASH(d)]; xp; xp = xp->x_next) { | |
325 | if (d != xp->x_ino) | |
326 | continue; | |
327 | if (xp->x_flags & XLINKED) | |
328 | continue; | |
329 | xp->x_timep[0] = spcl.c_dinode.di_atime; | |
330 | xp->x_timep[1] = spcl.c_dinode.di_mtime; | |
331 | mode = spcl.c_dinode.di_mode; | |
332 | if (mflag) | |
bcfabedf | 333 | strcpy(name, xp->x_name); |
0841dbb0 KM |
334 | else |
335 | sprintf(name, "%u", xp->x_ino); | |
336 | switch (mode & IFMT) { | |
337 | default: | |
bcfabedf | 338 | fprintf(stderr, "%s: unknown file type\n", name); |
0841dbb0 KM |
339 | xp->x_flags |= XTRACTD; |
340 | xtrcnt--; | |
341 | goto skipfile; | |
342 | case IFCHR: | |
343 | case IFBLK: | |
bcfabedf | 344 | fprintf(stdout, "extract special file %s\n", name); |
0841dbb0 KM |
345 | if (xmknod(name, mode, spcl.c_dinode.di_rdev)) { |
346 | fprintf(stderr, "%s: cannot create special file\n", name); | |
347 | xp->x_flags |= XTRACTD; | |
348 | xtrcnt--; | |
349 | goto skipfile; | |
19ac1bc8 | 350 | } |
0841dbb0 KM |
351 | getfile(null, null, spcl.c_dinode.di_size); |
352 | break; | |
353 | case IFDIR: | |
354 | if (mflag) { | |
bcfabedf | 355 | fprintf(stdout, "extract directory %s\n", name); |
0841dbb0 | 356 | strncat(name, "/.", BUFSIZ); |
bcfabedf KM |
357 | checkdir(name); |
358 | xchown(xp->x_name, spcl.c_dinode.di_uid, spcl.c_dinode.di_gid); | |
0841dbb0 KM |
359 | getfile(null, null, spcl.c_dinode.di_size); |
360 | break; | |
361 | } | |
b88e54cb KM |
362 | fprintf(stdout, "extract file %s\n", name); |
363 | if ((ofile = xcreat(name, 0666)) < 0) { | |
364 | fprintf(stderr, "%s: cannot create file\n", name); | |
365 | xp->x_flags |= XTRACTD; | |
366 | xtrcnt--; | |
367 | goto skipfile; | |
368 | } | |
369 | xchown(name, spcl.c_dinode.di_uid, spcl.c_dinode.di_gid); | |
370 | if (cvtdir) | |
371 | getfile(xtrcvtdir, xtrcvtskip, | |
372 | spcl.c_dinode.di_size); | |
373 | else | |
374 | getfile(xtrfile, xtrskip, | |
375 | spcl.c_dinode.di_size); | |
376 | xclose(ofile); | |
377 | break; | |
0841dbb0 | 378 | case IFREG: |
bcfabedf | 379 | fprintf(stdout, "extract file %s\n", name); |
0841dbb0 KM |
380 | if ((ofile = xcreat(name, 0666)) < 0) { |
381 | fprintf(stderr, "%s: cannot create file\n", name); | |
382 | xp->x_flags |= XTRACTD; | |
383 | xtrcnt--; | |
384 | goto skipfile; | |
7d4dda01 | 385 | } |
0841dbb0 | 386 | xchown(name, spcl.c_dinode.di_uid, spcl.c_dinode.di_gid); |
b88e54cb | 387 | getfile(xtrfile, xtrskip, spcl.c_dinode.di_size); |
0841dbb0 KM |
388 | xclose(ofile); |
389 | break; | |
7d4dda01 | 390 | } |
0841dbb0 KM |
391 | xchmod(name, mode); |
392 | xutime(name, xp->x_timep); | |
393 | xp->x_flags |= XTRACTD; | |
394 | xtrcnt--; | |
395 | goto finished; | |
396 | } | |
397 | skipfile: | |
398 | getfile(null, null, spcl.c_dinode.di_size); | |
003a2a9e | 399 | finished: |
0841dbb0 KM |
400 | ; |
401 | } | |
402 | if (xtrcnt == 0 && !mflag) | |
403 | return; | |
404 | for (xpp = xtrlist; xpp < &xtrlist[MAXINO]; xpp++) { | |
405 | for (xp = *xpp; xp; xp = xp->x_next) { | |
406 | if (mflag && (xp->x_flags & XISDIR)) | |
407 | xutime(xp->x_name, xp->x_timep); | |
408 | if (xp->x_flags & XTRACTD) | |
409 | continue; | |
410 | if ((xp->x_flags & XLINKED) == 0) { | |
411 | fprintf(stderr, "cannot find file %s\n", | |
412 | xp->x_name); | |
413 | continue; | |
414 | } | |
bcfabedf KM |
415 | if (!mflag) |
416 | continue; | |
417 | fprintf(stdout, "link %s to %s\n", | |
418 | xp->x_linkedto->x_name, xp->x_name); | |
0841dbb0 | 419 | if (xlink(xp->x_linkedto->x_name, xp->x_name) < 0) |
bcfabedf KM |
420 | fprintf(stderr, "link %s to %s failed\n", |
421 | xp->x_linkedto->x_name, xp->x_name); | |
7d4dda01 | 422 | } |
0841dbb0 KM |
423 | } |
424 | } | |
7d4dda01 | 425 | #endif |
0841dbb0 KM |
426 | |
427 | restorfiles(command, argv) | |
428 | char command; | |
429 | char **argv; | |
430 | { | |
b88e54cb | 431 | int rstrfile(), rstrskip(), rstrcvtdir(), rstrcvtskip(); |
0841dbb0 KM |
432 | register struct dinode *dp; |
433 | register struct inode *ip; | |
434 | struct fs *fs; | |
b88e54cb | 435 | int mode, type; |
0841dbb0 KM |
436 | char mount[BUFSIZ + 1]; |
437 | char *ptr[2]; | |
438 | ||
0841dbb0 KM |
439 | mount[0] = '\0'; |
440 | strcpy(mount, "MOUNT="); | |
b6407c9d | 441 | #ifndef STANDALONE |
0841dbb0 | 442 | strncat(mount, *argv, BUFSIZ); |
b6407c9d KM |
443 | #else |
444 | fprintf(stderr, "Disk? "); | |
445 | gets(&mount[6]); | |
446 | #endif | |
0841dbb0 KM |
447 | ptr[0] = mount; |
448 | ptr[1] = 0; | |
449 | xmount(ptr); | |
b6407c9d | 450 | mounted++; |
0841dbb0 KM |
451 | iput(u.u_cdir); /* release root inode */ |
452 | iput(u.u_rdir); /* release root inode */ | |
b6407c9d KM |
453 | fs = getfs(dev); |
454 | maxi = fs->fs_ipg * fs->fs_ncg; | |
7d4dda01 | 455 | #ifndef STANDALONE |
b6407c9d KM |
456 | msiz = roundup(howmany(maxi, NBBY), TP_BSIZE); |
457 | clrimap = (char *)calloc(msiz, sizeof(char)); | |
458 | dumpmap = (char *)calloc(msiz, sizeof(char)); | |
0841dbb0 KM |
459 | if (command == 'R') { |
460 | fprintf(stderr, "Enter starting volume number: "); | |
461 | if (gets(tbf) == EOF) { | |
462 | volno = 1; | |
463 | fprintf(stderr, "\n"); | |
7d4dda01 KM |
464 | } |
465 | else | |
0841dbb0 KM |
466 | volno = atoi(tbf); |
467 | } | |
468 | else | |
7d4dda01 | 469 | #endif |
0841dbb0 KM |
470 | volno = 1; |
471 | fprintf(stderr, "Last chance before scribbling on %s. ", | |
7d4dda01 | 472 | #ifdef STANDALONE |
0841dbb0 | 473 | "disk"); |
7d4dda01 | 474 | #else |
0841dbb0 | 475 | *argv); |
7d4dda01 | 476 | #endif |
0841dbb0 | 477 | while (getchar() != '\n'); |
0841dbb0 KM |
478 | if (readhdr(&spcl) == 0) { |
479 | fprintf(stderr, "Missing volume record\n"); | |
480 | done(1); | |
481 | } | |
482 | if (checkvol(&spcl, volno) == 0) { | |
483 | fprintf(stderr, "Tape is not volume %d\n", volno); | |
484 | done(1); | |
485 | } | |
b88e54cb KM |
486 | pass1(0); |
487 | gethead(&spcl); /* volume header already checked above */ | |
0841dbb0 KM |
488 | gethead(&spcl); |
489 | for (;;) { | |
490 | ragain: | |
491 | if (ishead(&spcl) == 0) { | |
492 | fprintf(stderr, "Missing header block\n"); | |
493 | while (gethead(&spcl) == 0) | |
494 | ; | |
495 | eflag++; | |
7d4dda01 | 496 | } |
0841dbb0 KM |
497 | if (checktype(&spcl, TS_END) == 1) { |
498 | fprintf(stderr, "End of tape\n"); | |
499 | close(mt); | |
500 | return; | |
7d4dda01 | 501 | } |
0841dbb0 KM |
502 | if (checktype(&spcl, TS_CLRI) == 1) { |
503 | readbits(clrimap); | |
504 | for (ino = 1; ino <= maxi; ino++) | |
505 | if (BIT(ino, clrimap) == 0) { | |
506 | if (!iexist(dev, ino)) | |
507 | continue; | |
508 | ip = iget(dev, ino); | |
509 | if (ip == NULL) { | |
510 | fprintf(stderr, "can't find inode %u\n", ino); | |
511 | done(1); | |
7d4dda01 | 512 | } |
0841dbb0 KM |
513 | ip->i_nlink = 0; |
514 | ip->i_flag |= ICHG; | |
515 | iput(ip); | |
003a2a9e | 516 | } |
0841dbb0 KM |
517 | goto ragain; |
518 | } | |
519 | if (checktype(&spcl, TS_BITS) == 1) { | |
520 | readbits(dumpmap); | |
521 | goto ragain; | |
522 | } | |
523 | if (checktype(&spcl, TS_INODE) == 0) { | |
524 | fprintf(stderr, "Unknown header type\n"); | |
525 | eflag++; | |
526 | gethead(&spcl); | |
527 | goto ragain; | |
528 | } | |
529 | ino = spcl.c_inumber; | |
530 | if (eflag) | |
531 | fprintf(stderr, "Resynced at inode %u\n", ino); | |
532 | eflag = 0; | |
533 | if (ino > maxi) { | |
534 | fprintf(stderr, "%u: ilist too small\n", ino); | |
535 | gethead(&spcl); | |
536 | goto ragain; | |
537 | } | |
538 | if (iexist(dev, ino)) { | |
539 | ip = iget(dev, ino); | |
540 | if (ip == NULL) { | |
541 | fprintf(stderr, "can't find inode %u\n", | |
542 | ino); | |
003a2a9e KM |
543 | done(1); |
544 | } | |
0841dbb0 | 545 | ip->i_nlink = 0; |
003a2a9e KM |
546 | ip->i_flag |= ICHG; |
547 | iput(ip); | |
7d4dda01 | 548 | } |
0841dbb0 KM |
549 | dp = &spcl.c_dinode; |
550 | ip = ialloc(dev, ino, dp->di_mode); | |
551 | if (ip == NULL || ip->i_number != ino) { | |
552 | fprintf(stderr, "can't create inode %u\n", ino); | |
553 | done(1); | |
554 | } | |
555 | ip->i_mode = mode = dp->di_mode; | |
556 | ip->i_nlink = dp->di_nlink; | |
557 | ip->i_uid = dp->di_uid; | |
558 | ip->i_gid = dp->di_gid; | |
559 | ip->i_atime = dp->di_atime; | |
560 | ip->i_mtime = dp->di_mtime; | |
561 | ip->i_ctime = dp->di_ctime; | |
b88e54cb KM |
562 | type = ip->i_mode & IFMT; |
563 | if (type == IFCHR || type == IFBLK) | |
0841dbb0 KM |
564 | ip->i_rdev = dp->di_rdev; |
565 | ip->i_size = 0; | |
566 | cur_ip = ip; | |
567 | u.u_offset = 0; | |
568 | u.u_segflg = 1; | |
b88e54cb KM |
569 | if (cvtdir && type == IFDIR) |
570 | getfile(rstrcvtdir, rstrcvtskip, dp->di_size); | |
571 | else | |
572 | getfile(rstrfile, rstrskip, dp->di_size); | |
0841dbb0 KM |
573 | ip->i_mode = mode; |
574 | ip->i_flag &= ~(IUPD|IACC); | |
575 | ip->i_flag |= ICHG; | |
576 | iput(ip); | |
7d4dda01 KM |
577 | } |
578 | } | |
579 | ||
580 | /* | |
581 | * Read the tape, bulding up a directory structure for extraction | |
582 | * by name | |
583 | */ | |
584 | #ifndef STANDALONE | |
b88e54cb KM |
585 | pass1(savedir) |
586 | int savedir; | |
7d4dda01 | 587 | { |
19ac1bc8 | 588 | register int i; |
0841dbb0 KM |
589 | register struct dinode *ip; |
590 | struct direct nulldir; | |
b88e54cb KM |
591 | char buf[TP_BSIZE]; |
592 | int putdir(), null(); | |
7d4dda01 | 593 | |
0841dbb0 KM |
594 | nulldir.d_ino = 0; |
595 | strncpy(nulldir.d_name, "/", DIRSIZ); | |
7d4dda01 | 596 | while (gethead(&spcl) == 0) { |
003a2a9e | 597 | fprintf(stderr, "Can't find directory header!\n"); |
7d4dda01 KM |
598 | } |
599 | for (;;) { | |
600 | if (checktype(&spcl, TS_BITS) == 1) { | |
601 | readbits(dumpmap); | |
602 | continue; | |
603 | } | |
604 | if (checktype(&spcl, TS_CLRI) == 1) { | |
605 | readbits(clrimap); | |
606 | continue; | |
607 | } | |
608 | if (checktype(&spcl, TS_INODE) == 0) { | |
609 | finish: | |
b88e54cb KM |
610 | if (savedir) |
611 | freopen(dirfile, "r", df); | |
612 | resetmt(); | |
7d4dda01 KM |
613 | return; |
614 | } | |
615 | ip = &spcl.c_dinode; | |
616 | i = ip->di_mode & IFMT; | |
617 | if (i != IFDIR) { | |
618 | goto finish; | |
619 | } | |
b88e54cb KM |
620 | if (spcl.c_inumber == ROOTINO) { |
621 | readtape(buf); | |
622 | bct--; /* push back this block */ | |
623 | if (((struct direct *)buf)->d_ino != ROOTINO) { | |
624 | if (((struct odirect *)buf)->d_ino != ROOTINO) { | |
625 | fprintf(stderr, "bad root directory\n"); | |
626 | done(1); | |
627 | } | |
628 | fprintf(stderr, "converting to new directory format\n"); | |
629 | cvtdir = 1; | |
630 | } | |
631 | if (!savedir && !cvtdir) { | |
632 | /* if no conversion, just return */ | |
633 | goto finish; | |
634 | } | |
635 | } | |
bcfabedf | 636 | allocinotab(spcl.c_inumber, seekpt); |
b88e54cb KM |
637 | if (savedir) { |
638 | getfile(putdir, null, spcl.c_dinode.di_size); | |
639 | putent(&nulldir); | |
640 | } else { | |
641 | getfile(null, null, spcl.c_dinode.di_size); | |
642 | } | |
7d4dda01 KM |
643 | } |
644 | } | |
645 | #endif | |
646 | ||
bcfabedf KM |
647 | /* |
648 | * Put the directory entries in the directory file | |
649 | */ | |
650 | #ifndef STANDALONE | |
651 | putdir(buf, size) | |
652 | char *buf; | |
653 | int size; | |
654 | { | |
b88e54cb KM |
655 | struct direct cvtbuf; |
656 | register struct odirect *odp; | |
657 | struct odirect *eodp; | |
bcfabedf | 658 | register struct direct *dp; |
b88e54cb KM |
659 | struct direct *edp; |
660 | ||
661 | if (cvtdir) { | |
662 | eodp = (struct odirect *)&buf[size]; | |
663 | for (odp = (struct odirect *)buf; odp < eodp; odp++) | |
664 | if (odp->d_ino != 0) { | |
665 | dcvt(odp, &cvtbuf); | |
666 | putent(&cvtbuf); | |
667 | } | |
668 | } else { | |
669 | edp = (struct direct *)&buf[size]; | |
670 | for (dp = (struct direct *)buf; dp < edp; dp++) | |
671 | if (dp->d_ino != 0) | |
672 | putent(dp); | |
673 | } | |
bcfabedf KM |
674 | } |
675 | ||
676 | putent(dp) | |
677 | struct direct *dp; | |
678 | { | |
679 | fwrite(dp, 1, sizeof(struct direct), df); | |
680 | seekpt = ftell(df); | |
681 | } | |
682 | ||
b88e54cb KM |
683 | dcvt(odp, ndp) |
684 | register struct odirect *odp; | |
685 | register struct direct *ndp; | |
686 | { | |
687 | register struct inotab *itp; | |
688 | ||
689 | blkclr(ndp, sizeof *ndp); | |
690 | ndp->d_ino = odp->d_ino; | |
691 | strncpy(ndp->d_name, odp->d_name, DIRSIZ); | |
692 | for (itp = inotab[INOHASH(odp->d_ino)]; itp; itp = itp->t_next) { | |
693 | if (itp->t_ino != odp->d_ino) | |
694 | continue; | |
695 | ndp->d_mode = IFDIR; | |
696 | break; | |
697 | } | |
698 | } | |
699 | ||
bcfabedf KM |
700 | /* |
701 | * Recursively find names and inumbers of all files in subtree | |
702 | * pname and put them in xtrlist[] | |
703 | */ | |
704 | getleaves(ino, pname) | |
705 | ino_t ino; | |
706 | char *pname; | |
707 | { | |
708 | register struct inotab *itp; | |
709 | int namelen; | |
710 | daddr_t bpt; | |
711 | struct direct dir; | |
712 | char locname[BUFSIZ + 1]; | |
713 | ||
714 | if (BIT(ino, dumpmap) == 0) { | |
715 | fprintf(stdout, "%s: not on the tape\n", pname); | |
716 | return; | |
717 | } | |
718 | for (itp = inotab[INOHASH(ino)]; itp; itp = itp->t_next) { | |
719 | if (itp->t_ino != ino) | |
720 | continue; | |
721 | /* | |
722 | * pname is a directory name | |
723 | */ | |
724 | allocxtr(ino, pname, XISDIR); | |
725 | /* | |
726 | * begin search through the directory | |
727 | * skipping over "." and ".." | |
728 | */ | |
729 | strncpy(locname, pname, BUFSIZ); | |
730 | strncat(locname, "/", BUFSIZ); | |
731 | namelen = strlen(locname); | |
732 | fseek(df, itp->t_seekpt, 0); | |
733 | fread(&dir, 1, sizeof(struct direct), df); | |
734 | fread(&dir, 1, sizeof(struct direct), df); | |
735 | fread(&dir, 1, sizeof(struct direct), df); | |
736 | bpt = ftell(df); | |
737 | /* | |
738 | * "/" signals end of directory | |
739 | */ | |
740 | while (strncmp(dir.d_name, "/", DIRSIZ)) { | |
741 | locname[namelen] = '\0'; | |
742 | strncat(locname, dir.d_name, DIRSIZ); | |
743 | if (strlen(locname) >= BUFSIZ) { | |
744 | fprintf(stderr, "%s: name exceedes %d char\n", | |
745 | locname, BUFSIZ); | |
746 | continue; | |
747 | } | |
748 | getleaves(dir.d_ino, locname); | |
749 | fseek(df, bpt, 0); | |
750 | fread(&dir, 1, sizeof(struct direct), df); | |
751 | bpt = ftell(df); | |
752 | } | |
753 | return; | |
754 | } | |
755 | /* | |
756 | * locname is name of a simple file | |
757 | */ | |
758 | allocxtr(ino, pname, XINUSE); | |
759 | } | |
760 | ||
761 | /* | |
762 | * Search the directory tree rooted at inode ROOTINO | |
763 | * for the path pointed at by n | |
764 | */ | |
765 | psearch(n) | |
766 | char *n; | |
767 | { | |
768 | register char *cp, *cp1; | |
769 | char c; | |
770 | ||
771 | ino = ROOTINO; | |
772 | if (*(cp = n) == '/') | |
773 | cp++; | |
774 | next: | |
775 | cp1 = cp + 1; | |
776 | while (*cp1 != '/' && *cp1) | |
777 | cp1++; | |
778 | c = *cp1; | |
779 | *cp1 = 0; | |
780 | ino = search(ino, cp); | |
781 | if (ino == 0) { | |
782 | *cp1 = c; | |
783 | return(0); | |
784 | } | |
785 | *cp1 = c; | |
786 | if (c == '/') { | |
787 | cp = cp1+1; | |
788 | goto next; | |
789 | } | |
790 | return(ino); | |
791 | } | |
792 | ||
793 | /* | |
794 | * search the directory inode ino | |
795 | * looking for entry cp | |
796 | */ | |
797 | ino_t | |
798 | search(inum, cp) | |
799 | ino_t inum; | |
800 | char *cp; | |
801 | { | |
802 | struct direct dir; | |
803 | register struct inotab *itp; | |
804 | ||
805 | for (itp = inotab[INOHASH(inum)]; itp; itp = itp->t_next) | |
806 | if (itp->t_ino == inum) | |
807 | goto found; | |
808 | return(0); | |
809 | found: | |
810 | fseek(df, itp->t_seekpt, 0); | |
811 | do { | |
812 | fread(&dir, 1, sizeof(struct direct), df); | |
813 | if (!strncmp(dir.d_name, "/", DIRSIZ)) | |
814 | return(0); | |
815 | } while (strncmp(dir.d_name, cp, DIRSIZ)); | |
816 | return(dir.d_ino); | |
817 | } | |
818 | #endif | |
819 | ||
7d4dda01 KM |
820 | /* |
821 | * Do the file extraction, calling the supplied functions | |
822 | * with the blocks | |
823 | */ | |
003a2a9e KM |
824 | getfile(f1, f2, size) |
825 | int (*f2)(), (*f1)(); | |
826 | long size; | |
7d4dda01 | 827 | { |
19ac1bc8 | 828 | register int i; |
b6407c9d | 829 | char buf[MAXBSIZE / TP_BSIZE][TP_BSIZE]; |
0841dbb0 | 830 | union u_spcl addrblk; |
b6407c9d | 831 | register struct fs *fs; |
0841dbb0 | 832 | # define addrblock addrblk.s_spcl |
7d4dda01 | 833 | |
0841dbb0 | 834 | addrblock = spcl; |
b6407c9d | 835 | fs = getfs(dev); |
7d4dda01 | 836 | for (;;) { |
0841dbb0 KM |
837 | for (i = 0; i < addrblock.c_count; i++) { |
838 | if (addrblock.c_addr[i]) { | |
19ac1bc8 | 839 | readtape(&buf[curblk++][0]); |
b6407c9d | 840 | if (curblk == BLKING(fs) * fs->fs_frag) { |
19ac1bc8 | 841 | (*f1)(buf, size > TP_BSIZE ? |
b6407c9d | 842 | (long) (BLKING(fs) * fs->fs_frag * TP_BSIZE) : |
19ac1bc8 KM |
843 | (curblk - 1) * TP_BSIZE + size); |
844 | curblk = 0; | |
845 | } | |
b6407c9d | 846 | } else { |
19ac1bc8 KM |
847 | if (curblk > 0) { |
848 | (*f1)(buf, size > TP_BSIZE ? | |
849 | (long) (curblk * TP_BSIZE) : | |
850 | (curblk - 1) * TP_BSIZE + size); | |
851 | curblk = 0; | |
852 | } | |
b6407c9d KM |
853 | (*f2)(clearedbuf, size > TP_BSIZE ? |
854 | (long) TP_BSIZE : size); | |
7d4dda01 | 855 | } |
19ac1bc8 | 856 | if ((size -= TP_BSIZE) <= 0) { |
7d4dda01 KM |
857 | eloop: |
858 | while (gethead(&spcl) == 0) | |
859 | ; | |
860 | if (checktype(&spcl, TS_ADDR) == 1) | |
861 | goto eloop; | |
19ac1bc8 | 862 | goto out; |
7d4dda01 KM |
863 | } |
864 | } | |
0841dbb0 | 865 | if (gethead(&addrblock) == 0) { |
19ac1bc8 | 866 | fprintf(stderr, "Missing address (header) block, ino%u\n", ino); |
003a2a9e KM |
867 | goto eloop; |
868 | } | |
0841dbb0 KM |
869 | if (checktype(&addrblock, TS_ADDR) == 0) { |
870 | spcl = addrblock; | |
19ac1bc8 | 871 | goto out; |
003a2a9e | 872 | } |
7d4dda01 | 873 | } |
19ac1bc8 KM |
874 | out: |
875 | if (curblk > 0) { | |
876 | (*f1)(buf, (curblk * TP_BSIZE) + size); | |
877 | curblk = 0; | |
878 | } | |
7d4dda01 KM |
879 | } |
880 | ||
bcfabedf KM |
881 | /* |
882 | * The next routines are called during file extraction to | |
883 | * put the data into the right form and place. | |
884 | */ | |
885 | #ifndef STANDALONE | |
886 | xtrfile(buf, size) | |
887 | char *buf; | |
888 | long size; | |
889 | { | |
890 | if (xwrite(ofile, buf, (int) size) == -1) { | |
b88e54cb | 891 | perror("extract write"); |
bcfabedf KM |
892 | done(1); |
893 | } | |
894 | } | |
895 | ||
b88e54cb | 896 | xtrskip(buf, size) |
bcfabedf KM |
897 | char *buf; |
898 | long size; | |
899 | { | |
900 | if (xseek(ofile, size, 1) == -1) { | |
b88e54cb | 901 | perror("extract seek"); |
bcfabedf KM |
902 | done(1); |
903 | } | |
904 | } | |
bcfabedf | 905 | |
b88e54cb KM |
906 | xtrcvtdir(buf, size) |
907 | struct odirect *buf; | |
908 | long size; | |
909 | { | |
b6407c9d KM |
910 | struct direct |
911 | cvtbuf[MAXBSIZE / sizeof(struct odirect)]; | |
b88e54cb KM |
912 | struct odirect *odp, *edp; |
913 | struct direct *dp; | |
914 | ||
915 | edp = &buf[size / sizeof(struct odirect)]; | |
916 | for (odp = buf, dp = cvtbuf; odp < edp; odp++, dp++) | |
917 | dcvt(odp, dp); | |
918 | size = size * sizeof(struct direct) / sizeof(struct odirect); | |
919 | if (xwrite(ofile, cvtbuf, (int) size) == -1) { | |
920 | perror("extract write"); | |
921 | done(1); | |
922 | } | |
923 | } | |
924 | ||
925 | xtrcvtskip(buf, size) | |
926 | char *buf; | |
927 | long size; | |
928 | { | |
929 | fprintf(stderr, "unallocated block in directory\n"); | |
930 | if (xseek(ofile, size, 1) == -1) { | |
931 | perror("extract seek"); | |
932 | done(1); | |
933 | } | |
934 | } | |
935 | #endif | |
bcfabedf KM |
936 | |
937 | rstrfile(buf, size) | |
938 | char *buf; | |
939 | long size; | |
940 | { | |
941 | u.u_base = buf; | |
942 | u.u_count = size; | |
943 | writei(cur_ip); | |
944 | if (u.u_error) { | |
b88e54cb | 945 | perror("restor write"); |
bcfabedf KM |
946 | done(1); |
947 | } | |
948 | } | |
949 | ||
950 | rstrskip(buf, size) | |
951 | char *buf; | |
952 | long size; | |
953 | { | |
954 | u.u_offset += size; | |
955 | } | |
956 | ||
b88e54cb KM |
957 | rstrcvtdir(buf, size) |
958 | struct odirect *buf; | |
959 | long size; | |
960 | { | |
b6407c9d KM |
961 | struct direct |
962 | cvtbuf[MAXBSIZE / sizeof(struct odirect)]; | |
b88e54cb KM |
963 | struct odirect *odp, *edp; |
964 | struct direct *dp; | |
965 | ||
966 | edp = &buf[size / sizeof(struct odirect)]; | |
967 | for (odp = buf, dp = cvtbuf; odp < edp; odp++, dp++) | |
968 | dcvt(odp, dp); | |
969 | u.u_base = (char *)cvtbuf; | |
970 | u.u_count = size * sizeof(struct direct) / sizeof(struct odirect); | |
971 | writei(cur_ip); | |
972 | if (u.u_error) { | |
973 | perror("restor write"); | |
974 | done(1); | |
975 | } | |
976 | } | |
977 | ||
978 | rstrcvtskip(buf, size) | |
979 | char *buf; | |
980 | long size; | |
981 | { | |
982 | fprintf(stderr, "unallocated block in directory\n"); | |
983 | u.u_offset += size; | |
984 | } | |
985 | ||
bcfabedf KM |
986 | null() {;} |
987 | ||
7d4dda01 | 988 | /* |
19ac1bc8 | 989 | * Do the tape i/o, dealing with volume changes |
7d4dda01 KM |
990 | * etc.. |
991 | */ | |
992 | readtape(b) | |
003a2a9e | 993 | char *b; |
7d4dda01 | 994 | { |
19ac1bc8 | 995 | register int i; |
0841dbb0 | 996 | struct s_spcl tmpbuf; |
7d4dda01 KM |
997 | |
998 | if (bct >= NTREC) { | |
999 | for (i = 0; i < NTREC; i++) | |
19ac1bc8 | 1000 | ((struct s_spcl *)&tbf[i*TP_BSIZE])->c_magic = 0; |
7d4dda01 | 1001 | bct = 0; |
19ac1bc8 | 1002 | if ((i = read(mt, tbf, NTREC*TP_BSIZE)) < 0) { |
003a2a9e | 1003 | perror("Tape read error"); |
7d4dda01 | 1004 | eflag++; |
003a2a9e | 1005 | done(1); |
7d4dda01 KM |
1006 | } |
1007 | if (i == 0) { | |
1008 | bct = NTREC + 1; | |
1009 | volno++; | |
1010 | loop: | |
1011 | flsht(); | |
1012 | close(mt); | |
003a2a9e | 1013 | fprintf(stderr, "Mount volume %d\n", volno); |
7d4dda01 KM |
1014 | while (getchar() != '\n') |
1015 | ; | |
1016 | if ((mt = open(magtape, 0)) == -1) { | |
003a2a9e | 1017 | fprintf(stderr, "Cannot open tape!\n"); |
7d4dda01 KM |
1018 | goto loop; |
1019 | } | |
1020 | if (readhdr(&tmpbuf) == 0) { | |
003a2a9e | 1021 | fprintf(stderr, "Not a dump tape.Try again\n"); |
7d4dda01 KM |
1022 | goto loop; |
1023 | } | |
1024 | if (checkvol(&tmpbuf, volno) == 0) { | |
003a2a9e | 1025 | fprintf(stderr, "Wrong tape. Try again\n"); |
7d4dda01 KM |
1026 | goto loop; |
1027 | } | |
1028 | readtape(b); | |
1029 | return; | |
1030 | } | |
1031 | } | |
19ac1bc8 | 1032 | copy(&tbf[(bct++*TP_BSIZE)], b, TP_BSIZE); |
7d4dda01 KM |
1033 | } |
1034 | ||
1035 | flsht() | |
1036 | { | |
1037 | bct = NTREC+1; | |
1038 | } | |
1039 | ||
1040 | copy(f, t, s) | |
003a2a9e | 1041 | register char *f, *t; |
7d4dda01 | 1042 | { |
19ac1bc8 | 1043 | register int i; |
7d4dda01 KM |
1044 | |
1045 | i = s; | |
1046 | do | |
1047 | *t++ = *f++; | |
1048 | while (--i); | |
1049 | } | |
1050 | ||
b88e54cb KM |
1051 | blkclr(buf, size) |
1052 | char *buf; | |
1053 | int size; | |
1054 | { | |
1055 | asm("movc5 $0,(r0),$0,8(ap),*4(ap)"); | |
1056 | } | |
1057 | ||
1058 | resetmt() | |
1059 | { | |
1060 | struct mtop tcom; | |
1061 | ||
1062 | if(dumpnum > 1) | |
1063 | tcom.mt_op = MTBSF; | |
1064 | else | |
1065 | tcom.mt_op = MTREW; | |
1066 | tcom.mt_count = 1; | |
1067 | flsht(); | |
1068 | if (ioctl(mt,MTIOCTOP,&tcom) == -1) { | |
1069 | /* kludge for disk dumps */ | |
1070 | lseek(mt, (long)0, 0); | |
1071 | } | |
1072 | if (dumpnum > 1) { | |
1073 | tcom.mt_op = MTFSF; | |
1074 | tcom.mt_count = 1; | |
1075 | ioctl(mt,MTIOCTOP,&tcom); | |
1076 | } | |
1077 | } | |
1078 | ||
bcfabedf KM |
1079 | checkvol(b, t) |
1080 | struct s_spcl *b; | |
1081 | int t; | |
7d4dda01 | 1082 | { |
bcfabedf KM |
1083 | if (b->c_volume == t) |
1084 | return(1); | |
7d4dda01 | 1085 | return(0); |
7d4dda01 KM |
1086 | } |
1087 | ||
bcfabedf KM |
1088 | readhdr(b) |
1089 | struct s_spcl *b; | |
7d4dda01 | 1090 | { |
bcfabedf | 1091 | if (gethead(b) == 0) |
7d4dda01 | 1092 | return(0); |
bcfabedf KM |
1093 | if (checktype(b, TS_TAPE) == 0) |
1094 | return(0); | |
1095 | return(1); | |
7d4dda01 | 1096 | } |
7d4dda01 | 1097 | |
7d4dda01 KM |
1098 | /* |
1099 | * read the tape into buf, then return whether or | |
1100 | * or not it is a header block. | |
1101 | */ | |
1102 | gethead(buf) | |
0841dbb0 | 1103 | struct s_spcl *buf; |
7d4dda01 KM |
1104 | { |
1105 | readtape((char *)buf); | |
0841dbb0 | 1106 | if (buf->c_magic != MAGIC || checksum((int *)buf) == 0) |
7d4dda01 KM |
1107 | return(0); |
1108 | return(1); | |
1109 | } | |
1110 | ||
1111 | /* | |
1112 | * return whether or not the buffer contains a header block | |
1113 | */ | |
1114 | ishead(buf) | |
0841dbb0 | 1115 | struct s_spcl *buf; |
7d4dda01 | 1116 | { |
0841dbb0 | 1117 | if (buf->c_magic != MAGIC || checksum((int *)buf) == 0) |
7d4dda01 KM |
1118 | return(0); |
1119 | return(1); | |
1120 | } | |
1121 | ||
1122 | checktype(b, t) | |
0841dbb0 | 1123 | struct s_spcl *b; |
003a2a9e | 1124 | int t; |
7d4dda01 | 1125 | { |
0841dbb0 | 1126 | return(b->c_type == t); |
7d4dda01 KM |
1127 | } |
1128 | ||
b88e54cb KM |
1129 | /* |
1130 | * read a bit mask from the tape into m. | |
1131 | */ | |
1132 | readbits(m) | |
b6407c9d | 1133 | char *m; |
b88e54cb KM |
1134 | { |
1135 | register int i; | |
1136 | ||
1137 | i = spcl.c_count; | |
1138 | ||
1139 | while (i--) { | |
1140 | readtape((char *) m); | |
b6407c9d | 1141 | m += (TP_BSIZE/(NBBY/BITS)); |
b88e54cb KM |
1142 | } |
1143 | while (gethead(&spcl) == 0) | |
1144 | ; | |
1145 | } | |
7d4dda01 KM |
1146 | |
1147 | checksum(b) | |
003a2a9e | 1148 | int *b; |
7d4dda01 | 1149 | { |
19ac1bc8 | 1150 | register int i, j; |
7d4dda01 | 1151 | |
19ac1bc8 | 1152 | j = sizeof(union u_spcl) / sizeof(int); |
7d4dda01 KM |
1153 | i = 0; |
1154 | do | |
1155 | i += *b++; | |
1156 | while (--j); | |
1157 | if (i != CHECKSUM) { | |
19ac1bc8 | 1158 | fprintf(stderr, "Checksum error %o, ino %u\n", i, ino); |
7d4dda01 KM |
1159 | return(0); |
1160 | } | |
1161 | return(1); | |
1162 | } | |
1163 | ||
b88e54cb KM |
1164 | /* |
1165 | * Check for access into each directory in the pathname of an extracted | |
1166 | * file and create such a directory if needed in preparation for moving | |
1167 | * the file to its proper home. | |
1168 | */ | |
1169 | checkdir(name) | |
1170 | register char *name; | |
1171 | { | |
1172 | register char *cp; | |
1173 | int i; | |
1174 | ||
1175 | for (cp = name; *cp; cp++) { | |
1176 | if (*cp == '/') { | |
1177 | *cp = '\0'; | |
1178 | if (xaccess(name, 01) < 0) { | |
1179 | register int pid, rp; | |
1180 | ||
1181 | xumount(); | |
1182 | if ((pid = fork()) == 0) { | |
1183 | execl("/bin/xmkdir", "xmkdir", name, 0); | |
1184 | execl("/usr/bin/xmkdir", "xmkdir", name, 0); | |
1185 | execl("./xmkdir", "xmkdir", name, 0); | |
1186 | fprintf(stderr, "xrestor: cannot find xmkdir!\n"); | |
1187 | done(0); | |
1188 | } | |
1189 | while ((rp = wait(&i)) >= 0 && rp != pid) | |
1190 | ; | |
1191 | xmount(envp); | |
1192 | } | |
1193 | *cp = '/'; | |
1194 | } | |
1195 | } | |
1196 | } | |
1197 | ||
003a2a9e KM |
1198 | /* |
1199 | * tell whether an inode is allocated | |
1200 | * this is drawn from ialloccg in sys/alloc.c | |
1201 | */ | |
1202 | iexist(dev, ino) | |
1203 | dev_t dev; | |
1204 | ino_t ino; | |
7d4dda01 | 1205 | { |
003a2a9e KM |
1206 | register struct fs *fs; |
1207 | register struct cg *cgp; | |
1208 | register struct buf *bp; | |
1209 | int cg; | |
1210 | ||
1211 | fs = getfs(dev); | |
1212 | if ((unsigned)ino >= fs->fs_ipg*fs->fs_ncg) | |
1213 | return (0); | |
1214 | cg = itog(ino, fs); | |
b6407c9d | 1215 | bp = bread(dev, fsbtodb(fs, cgtod(cg, fs)), fs->fs_bsize); |
003a2a9e KM |
1216 | if (bp->b_flags & B_ERROR) |
1217 | return(0); | |
1218 | cgp = bp->b_un.b_cg; | |
1219 | ino %= fs->fs_ipg; | |
1220 | if (isclr(cgp->cg_iused, ino)) { | |
1221 | brelse(bp); | |
1222 | return(0); | |
1223 | } | |
1224 | brelse(bp); | |
1225 | return (1); | |
7d4dda01 KM |
1226 | } |
1227 | ||
bcfabedf | 1228 | allocinotab(ino, seekpt) |
0841dbb0 | 1229 | ino_t ino; |
bcfabedf | 1230 | daddr_t seekpt; |
7d4dda01 | 1231 | { |
0841dbb0 | 1232 | register struct inotab *itp; |
19ac1bc8 | 1233 | |
0841dbb0 KM |
1234 | itp = (struct inotab *)calloc(1, sizeof(struct inotab)); |
1235 | itp->t_next = inotab[INOHASH(ino)]; | |
1236 | inotab[INOHASH(ino)] = itp; | |
1237 | itp->t_ino = ino; | |
bcfabedf | 1238 | itp->t_seekpt = seekpt; |
7d4dda01 KM |
1239 | } |
1240 | ||
bcfabedf | 1241 | allocxtr(ino, name, flags) |
0841dbb0 | 1242 | ino_t ino; |
bcfabedf KM |
1243 | char *name; |
1244 | char flags; | |
7d4dda01 | 1245 | { |
bcfabedf | 1246 | register struct xtrlist *xp, *pxp; |
0841dbb0 | 1247 | |
bcfabedf | 1248 | xp = (struct xtrlist *)calloc(1, sizeof(struct xtrlist) + strlen(name)); |
0841dbb0 KM |
1249 | xp->x_next = xtrlist[INOHASH(ino)]; |
1250 | xtrlist[INOHASH(ino)] = xp; | |
1251 | xp->x_ino = ino; | |
bcfabedf | 1252 | strcpy(xp->x_name, name); |
0841dbb0 | 1253 | xtrcnt++; |
bcfabedf KM |
1254 | xp->x_flags = flags; |
1255 | for (pxp = xp->x_next; pxp; pxp = pxp->x_next) | |
1256 | if (pxp->x_ino == ino && (pxp->x_flags & XLINKED) == 0) { | |
1257 | xp->x_flags |= XLINKED; | |
1258 | xp->x_linkedto = pxp; | |
1259 | xtrcnt--; | |
1260 | break; | |
1261 | } | |
1262 | if (xp->x_flags & XLINKED) | |
1263 | fprintf(stdout, "%s: linked to %s\n", xp->x_name, pxp->x_name); | |
1264 | else if (xp->x_flags & XISDIR) | |
1265 | fprintf(stdout, "%s: directory inode %u\n", xp->x_name, ino); | |
1266 | else | |
1267 | fprintf(stdout, "%s: inode %u\n", xp->x_name, ino); | |
7d4dda01 KM |
1268 | } |
1269 | ||
b88e54cb KM |
1270 | done(exitcode) |
1271 | int exitcode; | |
7d4dda01 | 1272 | { |
b88e54cb KM |
1273 | #ifndef STANDALONE |
1274 | unlink(dirfile); | |
1275 | #endif | |
1276 | if (mounted) | |
1277 | xumount(); | |
1278 | exit(exitcode); | |
7d4dda01 | 1279 | } |