Commit | Line | Data |
---|---|---|
8c5eec2f DF |
1 | /* |
2 | * Copyright (c) 1983 Regents of the University of California. | |
3 | * All rights reserved. The Berkeley software License Agreement | |
4 | * specifies the terms and conditions for redistribution. | |
5 | */ | |
f78e116c | 6 | |
8c5eec2f | 7 | #ifndef lint |
8d412b7c | 8 | static char sccsid[] = "@(#)tape.c 5.10 (Berkeley) %G%"; |
8c5eec2f | 9 | #endif not lint |
ebd1f727 | 10 | |
f78e116c | 11 | #include "restore.h" |
d9127117 | 12 | #include <protocols/dumprestore.h> |
f78e116c KM |
13 | #include <sys/ioctl.h> |
14 | #include <sys/mtio.h> | |
2cb5dabb | 15 | #include <sys/file.h> |
f78e116c | 16 | #include <setjmp.h> |
a7b24fe9 | 17 | #include <sys/stat.h> |
2cb5dabb | 18 | |
bdeceadb | 19 | static long fssize = MAXBSIZE; |
2cb5dabb KM |
20 | static int mt = -1; |
21 | static int pipein = 0; | |
7eb08dfe | 22 | static char magtape[BUFSIZ]; |
19230a53 KM |
23 | static int bct; |
24 | static char *tbf; | |
2cb5dabb KM |
25 | static union u_spcl endoftapemark; |
26 | static long blksread; | |
170639fd | 27 | static long tapesread; |
2cb5dabb KM |
28 | static jmp_buf restart; |
29 | static int gettingfile = 0; /* restart has a valid frame */ | |
30 | ||
31 | static int ofile; | |
32 | static char *map; | |
33 | static char lnkbuf[MAXPATHLEN + 1]; | |
34 | static int pathlen; | |
f78e116c | 35 | |
b4c41341 KS |
36 | int Bcvt; /* Swap Bytes (for CCI or sun) */ |
37 | static int Qcvt; /* Swap quads (for sun) */ | |
f78e116c KM |
38 | /* |
39 | * Set up an input source | |
40 | */ | |
41 | setinput(source) | |
42 | char *source; | |
43 | { | |
e9e7ecc4 | 44 | #ifdef RRESTORE |
7eb08dfe | 45 | char *host, *tape; |
e9e7ecc4 | 46 | #endif RRESTORE |
f78e116c | 47 | |
19230a53 | 48 | flsht(); |
b97e998a KM |
49 | if (bflag) |
50 | newtapebuf(ntrec); | |
51 | else | |
52 | newtapebuf(NTREC > HIGHDENSITYTREC ? NTREC : HIGHDENSITYTREC); | |
9c695c61 | 53 | terminal = stdin; |
e9e7ecc4 | 54 | #ifdef RRESTORE |
f78e116c | 55 | host = source; |
7eb08dfe KM |
56 | tape = index(host, ':'); |
57 | if (tape == 0) { | |
f78e116c | 58 | nohost: |
5c5f44c7 | 59 | msg("need keyletter ``f'' and device ``host:tape''\n"); |
f78e116c KM |
60 | done(1); |
61 | } | |
7eb08dfe KM |
62 | *tape++ = '\0'; |
63 | (void) strcpy(magtape, tape); | |
f78e116c KM |
64 | if (rmthost(host) == 0) |
65 | done(1); | |
66 | setuid(getuid()); /* no longer need or want root privileges */ | |
67 | #else | |
9c695c61 | 68 | if (strcmp(source, "-") == 0) { |
b677c5d7 KM |
69 | /* |
70 | * Since input is coming from a pipe we must establish | |
71 | * our own connection to the terminal. | |
72 | */ | |
73 | terminal = fopen("/dev/tty", "r"); | |
74 | if (terminal == NULL) { | |
b8eb5f1f KM |
75 | perror("Cannot open(\"/dev/tty\")"); |
76 | terminal = fopen("/dev/null", "r"); | |
77 | if (terminal == NULL) { | |
78 | perror("Cannot open(\"/dev/null\")"); | |
79 | done(1); | |
80 | } | |
b677c5d7 | 81 | } |
2cb5dabb | 82 | pipein++; |
2cb5dabb | 83 | } |
7eb08dfe | 84 | (void) strcpy(magtape, source); |
e9e7ecc4 | 85 | #endif RRESTORE |
f78e116c KM |
86 | } |
87 | ||
b97e998a KM |
88 | newtapebuf(size) |
89 | long size; | |
90 | { | |
91 | static tbfsize = -1; | |
92 | ||
93 | ntrec = size; | |
94 | if (size <= tbfsize) | |
95 | return; | |
96 | if (tbf != NULL) | |
97 | free(tbf); | |
98 | tbf = (char *)malloc(size * TP_BSIZE); | |
99 | if (tbf == NULL) { | |
100 | fprintf(stderr, "Cannot allocate space for tape buffer\n"); | |
101 | done(1); | |
102 | } | |
103 | tbfsize = size; | |
104 | } | |
105 | ||
f78e116c KM |
106 | /* |
107 | * Verify that the tape drive can be accessed and | |
108 | * that it actually is a dump tape. | |
109 | */ | |
110 | setup() | |
111 | { | |
2cb5dabb | 112 | int i, j, *ip; |
f78e116c KM |
113 | struct stat stbuf; |
114 | extern char *ctime(); | |
115 | extern int xtrmap(), xtrmapskip(); | |
116 | ||
117 | vprintf(stdout, "Verify tape and initialize maps\n"); | |
e9e7ecc4 | 118 | #ifdef RRESTORE |
f78e116c KM |
119 | if ((mt = rmtopen(magtape, 0)) < 0) |
120 | #else | |
2cb5dabb KM |
121 | if (pipein) |
122 | mt = 0; | |
123 | else if ((mt = open(magtape, 0)) < 0) | |
f78e116c KM |
124 | #endif |
125 | { | |
e9e7ecc4 | 126 | perror(magtape); |
f78e116c KM |
127 | done(1); |
128 | } | |
768eb687 KM |
129 | volno = 1; |
130 | setdumpnum(); | |
f78e116c | 131 | flsht(); |
b97e998a KM |
132 | if (!pipein && !bflag) |
133 | findtapeblksize(); | |
5c5f44c7 | 134 | if (gethead(&spcl) == FAIL) { |
f78e116c KM |
135 | bct--; /* push back this block */ |
136 | cvtflag++; | |
5c5f44c7 | 137 | if (gethead(&spcl) == FAIL) { |
f78e116c KM |
138 | fprintf(stderr, "Tape is not a dump tape\n"); |
139 | done(1); | |
140 | } | |
141 | fprintf(stderr, "Converting to new file system format.\n"); | |
142 | } | |
2cb5dabb KM |
143 | if (pipein) { |
144 | endoftapemark.s_spcl.c_magic = cvtflag ? OFS_MAGIC : NFS_MAGIC; | |
145 | endoftapemark.s_spcl.c_type = TS_END; | |
146 | ip = (int *)&endoftapemark; | |
147 | j = sizeof(union u_spcl) / sizeof(int); | |
148 | i = 0; | |
149 | do | |
150 | i += *ip++; | |
151 | while (--j); | |
152 | endoftapemark.s_spcl.c_checksum = CHECKSUM - i; | |
153 | } | |
b32320ae KM |
154 | if (vflag || command == 't') |
155 | printdumpinfo(); | |
f78e116c | 156 | dumptime = spcl.c_ddate; |
2cb5dabb | 157 | dumpdate = spcl.c_date; |
f78e116c | 158 | if (stat(".", &stbuf) < 0) { |
e9e7ecc4 | 159 | perror("cannot stat ."); |
f78e116c KM |
160 | done(1); |
161 | } | |
bdeceadb KM |
162 | if (stbuf.st_blksize > 0 && stbuf.st_blksize <= MAXBSIZE) |
163 | fssize = stbuf.st_blksize; | |
164 | if (((fssize - 1) & fssize) != 0) { | |
f78e116c KM |
165 | fprintf(stderr, "bad block size %d\n", fssize); |
166 | done(1); | |
167 | } | |
2cb5dabb | 168 | if (checkvol(&spcl, (long)1) == FAIL) { |
f78e116c KM |
169 | fprintf(stderr, "Tape is not volume 1 of the dump\n"); |
170 | done(1); | |
171 | } | |
2cb5dabb KM |
172 | if (readhdr(&spcl) == FAIL) |
173 | panic("no header after volume mark!\n"); | |
b32320ae | 174 | findinode(&spcl); |
2cb5dabb | 175 | if (checktype(&spcl, TS_CLRI) == FAIL) { |
f78e116c KM |
176 | fprintf(stderr, "Cannot find file removal list\n"); |
177 | done(1); | |
178 | } | |
2cb5dabb | 179 | maxino = (spcl.c_count * TP_BSIZE * NBBY) + 1; |
768eb687 | 180 | dprintf(stdout, "maxino = %d\n", maxino); |
7851e15d | 181 | map = calloc((unsigned)1, (unsigned)howmany(maxino, NBBY)); |
f78e116c KM |
182 | if (map == (char *)NIL) |
183 | panic("no memory for file removal list\n"); | |
cf6db0ab | 184 | clrimap = map; |
f78e116c KM |
185 | curfile.action = USING; |
186 | getfile(xtrmap, xtrmapskip); | |
2cb5dabb | 187 | if (checktype(&spcl, TS_BITS) == FAIL) { |
f78e116c KM |
188 | fprintf(stderr, "Cannot find file dump list\n"); |
189 | done(1); | |
190 | } | |
7851e15d | 191 | map = calloc((unsigned)1, (unsigned)howmany(maxino, NBBY)); |
f78e116c KM |
192 | if (map == (char *)NULL) |
193 | panic("no memory for file dump list\n"); | |
cf6db0ab | 194 | dumpmap = map; |
f78e116c KM |
195 | curfile.action = USING; |
196 | getfile(xtrmap, xtrmapskip); | |
f78e116c KM |
197 | } |
198 | ||
170639fd KM |
199 | /* |
200 | * Prompt user to load a new dump volume. | |
201 | * "Nextvol" is the next suggested volume to use. | |
202 | * This suggested volume is enforced when doing full | |
203 | * or incremental restores, but can be overrridden by | |
204 | * the user when only extracting a subset of the files. | |
205 | */ | |
f78e116c KM |
206 | getvol(nextvol) |
207 | long nextvol; | |
208 | { | |
209 | long newvol; | |
170639fd | 210 | long savecnt, i; |
f78e116c KM |
211 | union u_spcl tmpspcl; |
212 | # define tmpbuf tmpspcl.s_spcl | |
b32320ae | 213 | char buf[TP_BSIZE]; |
f78e116c | 214 | |
a162cc0b | 215 | if (nextvol == 1) { |
170639fd | 216 | tapesread = 0; |
a162cc0b KM |
217 | gettingfile = 0; |
218 | } | |
2cb5dabb | 219 | if (pipein) { |
e108d3a2 | 220 | if (nextvol != 1) |
2cb5dabb | 221 | panic("Changing volumes on pipe input?\n"); |
e108d3a2 KM |
222 | if (volno == 1) |
223 | return; | |
224 | goto gethdr; | |
2cb5dabb KM |
225 | } |
226 | savecnt = blksread; | |
f78e116c | 227 | again: |
e108d3a2 KM |
228 | if (pipein) |
229 | done(1); /* pipes do not get a second chance */ | |
f78e116c KM |
230 | if (command == 'R' || command == 'r' || curfile.action != SKIP) |
231 | newvol = nextvol; | |
232 | else | |
233 | newvol = 0; | |
234 | while (newvol <= 0) { | |
170639fd KM |
235 | if (tapesread == 0) { |
236 | fprintf(stderr, "%s%s%s%s%s", | |
237 | "You have not read any tapes yet.\n", | |
238 | "Unless you know which volume your", | |
239 | " file(s) are on you should start\n", | |
240 | "with the last volume and work", | |
b4c41341 | 241 | " towards towards the first.\n"); |
170639fd KM |
242 | } else { |
243 | fprintf(stderr, "You have read volumes"); | |
244 | strcpy(tbf, ": "); | |
245 | for (i = 1; i < 32; i++) | |
246 | if (tapesread & (1 << i)) { | |
247 | fprintf(stderr, "%s%d", tbf, i); | |
248 | strcpy(tbf, ", "); | |
249 | } | |
250 | fprintf(stderr, "\n"); | |
251 | } | |
538cb7bb | 252 | do { |
b677c5d7 KM |
253 | fprintf(stderr, "Specify next volume #: "); |
254 | (void) fflush(stderr); | |
255 | (void) fgets(tbf, BUFSIZ, terminal); | |
256 | } while (!feof(terminal) && tbf[0] == '\n'); | |
257 | if (feof(terminal)) | |
538cb7bb | 258 | done(1); |
f78e116c KM |
259 | newvol = atoi(tbf); |
260 | if (newvol <= 0) { | |
261 | fprintf(stderr, | |
262 | "Volume numbers are positive numerics\n"); | |
263 | } | |
264 | } | |
170639fd KM |
265 | if (newvol == volno) { |
266 | tapesread |= 1 << volno; | |
f78e116c | 267 | return; |
170639fd | 268 | } |
f78e116c | 269 | closemt(); |
7eb08dfe KM |
270 | fprintf(stderr, "Mount tape volume %d\n", newvol); |
271 | fprintf(stderr, "then enter tape name (default: %s) ", magtape); | |
b677c5d7 | 272 | (void) fflush(stderr); |
7eb08dfe KM |
273 | (void) fgets(tbf, BUFSIZ, terminal); |
274 | if (feof(terminal)) | |
275 | done(1); | |
276 | if (tbf[0] != '\n') { | |
277 | (void) strcpy(magtape, tbf); | |
278 | magtape[strlen(magtape) - 1] = '\0'; | |
279 | } | |
e9e7ecc4 | 280 | #ifdef RRESTORE |
f78e116c KM |
281 | if ((mt = rmtopen(magtape, 0)) == -1) |
282 | #else | |
283 | if ((mt = open(magtape, 0)) == -1) | |
284 | #endif | |
285 | { | |
7eb08dfe KM |
286 | fprintf(stderr, "Cannot open %s\n", magtape); |
287 | volno = -1; | |
f78e116c KM |
288 | goto again; |
289 | } | |
e108d3a2 | 290 | gethdr: |
f78e116c | 291 | volno = newvol; |
768eb687 | 292 | setdumpnum(); |
f78e116c | 293 | flsht(); |
2cb5dabb | 294 | if (readhdr(&tmpbuf) == FAIL) { |
f78e116c KM |
295 | fprintf(stderr, "tape is not dump tape\n"); |
296 | volno = 0; | |
297 | goto again; | |
298 | } | |
2cb5dabb | 299 | if (checkvol(&tmpbuf, volno) == FAIL) { |
f78e116c KM |
300 | fprintf(stderr, "Wrong volume (%d)\n", tmpbuf.c_volume); |
301 | volno = 0; | |
302 | goto again; | |
303 | } | |
2cb5dabb | 304 | if (tmpbuf.c_date != dumpdate || tmpbuf.c_ddate != dumptime) { |
3dbddecd KM |
305 | fprintf(stderr, "Wrong dump date\n\tgot: %s", |
306 | ctime(&tmpbuf.c_date)); | |
307 | fprintf(stderr, "\twanted: %s", ctime(&dumpdate)); | |
2cb5dabb KM |
308 | volno = 0; |
309 | goto again; | |
310 | } | |
170639fd | 311 | tapesread |= 1 << volno; |
5c5f44c7 | 312 | blksread = savecnt; |
f78e116c KM |
313 | if (curfile.action == USING) { |
314 | if (volno == 1) | |
315 | panic("active file into volume 1\n"); | |
316 | return; | |
317 | } | |
b32320ae KM |
318 | /* |
319 | * Skip up to the beginning of the next record | |
320 | */ | |
8d412b7c | 321 | if (tmpbuf.c_type == TS_TAPE && (tmpbuf.c_flags & DR_NEWHEADER)) |
b32320ae KM |
322 | for (i = tmpbuf.c_count; i > 0; i--) |
323 | readtape(buf); | |
5c5f44c7 | 324 | (void) gethead(&spcl); |
b32320ae | 325 | findinode(&spcl); |
f78e116c KM |
326 | if (gettingfile) { |
327 | gettingfile = 0; | |
328 | longjmp(restart, 1); | |
329 | } | |
330 | } | |
331 | ||
768eb687 KM |
332 | /* |
333 | * handle multiple dumps per tape by skipping forward to the | |
334 | * appropriate one. | |
335 | */ | |
336 | setdumpnum() | |
337 | { | |
338 | struct mtop tcom; | |
339 | ||
340 | if (dumpnum == 1 || volno != 1) | |
341 | return; | |
342 | if (pipein) { | |
343 | fprintf(stderr, "Cannot have multiple dumps on pipe input\n"); | |
344 | done(1); | |
345 | } | |
346 | tcom.mt_op = MTFSF; | |
347 | tcom.mt_count = dumpnum - 1; | |
e9e7ecc4 | 348 | #ifdef RRESTORE |
768eb687 KM |
349 | rmtioctl(MTFSF, dumpnum - 1); |
350 | #else | |
538cb7bb | 351 | if (ioctl(mt, (int)MTIOCTOP, (char *)&tcom) < 0) |
768eb687 KM |
352 | perror("ioctl MTFSF"); |
353 | #endif | |
354 | } | |
355 | ||
b32320ae KM |
356 | printdumpinfo() |
357 | { | |
358 | ||
359 | fprintf(stdout, "Dump date: %s", ctime(&spcl.c_date)); | |
360 | fprintf(stdout, "Dumped from: %s", ctime(&spcl.c_ddate)); | |
361 | if (spcl.c_host[0] == '\0') | |
362 | return; | |
363 | fprintf(stderr, "Level %d dump of %s on %s:%s\n", | |
364 | spcl.c_level, spcl.c_filesys, spcl.c_host, spcl.c_dev); | |
365 | fprintf(stderr, "Label: %s\n", spcl.c_label); | |
366 | } | |
367 | ||
f78e116c KM |
368 | extractfile(name) |
369 | char *name; | |
370 | { | |
371 | int mode; | |
372 | time_t timep[2]; | |
373 | struct entry *ep; | |
374 | extern int xtrlnkfile(), xtrlnkskip(); | |
375 | extern int xtrfile(), xtrskip(); | |
376 | ||
377 | curfile.name = name; | |
378 | curfile.action = USING; | |
379 | timep[0] = curfile.dip->di_atime; | |
380 | timep[1] = curfile.dip->di_mtime; | |
381 | mode = curfile.dip->di_mode; | |
382 | switch (mode & IFMT) { | |
383 | ||
384 | default: | |
385 | fprintf(stderr, "%s: unknown file mode 0%o\n", name, mode); | |
386 | skipfile(); | |
387 | return (FAIL); | |
388 | ||
74e940f5 KM |
389 | case IFSOCK: |
390 | vprintf(stdout, "skipped socket %s\n", name); | |
391 | skipfile(); | |
392 | return (GOOD); | |
393 | ||
f78e116c KM |
394 | case IFDIR: |
395 | if (mflag) { | |
396 | ep = lookupname(name); | |
397 | if (ep == NIL || ep->e_flags & EXTRACT) | |
398 | panic("unextracted directory %s\n", name); | |
399 | skipfile(); | |
400 | return (GOOD); | |
401 | } | |
402 | vprintf(stdout, "extract file %s\n", name); | |
403 | return (genliteraldir(name, curfile.ino)); | |
404 | ||
405 | case IFLNK: | |
406 | lnkbuf[0] = '\0'; | |
407 | pathlen = 0; | |
408 | getfile(xtrlnkfile, xtrlnkskip); | |
409 | if (pathlen == 0) { | |
410 | vprintf(stdout, | |
411 | "%s: zero length symbolic link (ignored)\n", name); | |
bdeceadb KM |
412 | return (GOOD); |
413 | } | |
414 | return (linkit(lnkbuf, name, SYMLINK)); | |
f78e116c KM |
415 | |
416 | case IFCHR: | |
417 | case IFBLK: | |
418 | vprintf(stdout, "extract special file %s\n", name); | |
419 | if (mknod(name, mode, (int)curfile.dip->di_rdev) < 0) { | |
e9e7ecc4 KM |
420 | fprintf(stderr, "%s: ", name); |
421 | (void) fflush(stderr); | |
422 | perror("cannot create special file"); | |
f78e116c KM |
423 | skipfile(); |
424 | return (FAIL); | |
425 | } | |
768eb687 KM |
426 | (void) chown(name, curfile.dip->di_uid, curfile.dip->di_gid); |
427 | (void) chmod(name, mode); | |
f78e116c KM |
428 | skipfile(); |
429 | utime(name, timep); | |
430 | return (GOOD); | |
431 | ||
432 | case IFREG: | |
433 | vprintf(stdout, "extract file %s\n", name); | |
15aeb519 | 434 | if ((ofile = creat(name, 0666)) < 0) { |
e9e7ecc4 KM |
435 | fprintf(stderr, "%s: ", name); |
436 | (void) fflush(stderr); | |
437 | perror("cannot create file"); | |
f78e116c KM |
438 | skipfile(); |
439 | return (FAIL); | |
440 | } | |
768eb687 KM |
441 | (void) fchown(ofile, curfile.dip->di_uid, curfile.dip->di_gid); |
442 | (void) fchmod(ofile, mode); | |
f78e116c | 443 | getfile(xtrfile, xtrskip); |
768eb687 | 444 | (void) close(ofile); |
f78e116c KM |
445 | utime(name, timep); |
446 | return (GOOD); | |
447 | } | |
448 | /* NOTREACHED */ | |
449 | } | |
450 | ||
e108d3a2 KM |
451 | /* |
452 | * skip over bit maps on the tape | |
453 | */ | |
454 | skipmaps() | |
455 | { | |
456 | ||
457 | while (checktype(&spcl, TS_CLRI) == GOOD || | |
458 | checktype(&spcl, TS_BITS) == GOOD) | |
459 | skipfile(); | |
460 | } | |
461 | ||
462 | /* | |
463 | * skip over a file on the tape | |
464 | */ | |
f78e116c KM |
465 | skipfile() |
466 | { | |
467 | extern int null(); | |
468 | ||
469 | curfile.action = SKIP; | |
470 | getfile(null, null); | |
471 | } | |
472 | ||
473 | /* | |
474 | * Do the file extraction, calling the supplied functions | |
475 | * with the blocks | |
476 | */ | |
477 | getfile(f1, f2) | |
478 | int (*f2)(), (*f1)(); | |
479 | { | |
480 | register int i; | |
481 | int curblk = 0; | |
482 | off_t size = spcl.c_dinode.di_size; | |
483 | static char clearedbuf[MAXBSIZE]; | |
484 | char buf[MAXBSIZE / TP_BSIZE][TP_BSIZE]; | |
4f8ea093 | 485 | char junk[TP_BSIZE]; |
f78e116c | 486 | |
2cb5dabb | 487 | if (checktype(&spcl, TS_END) == GOOD) |
f78e116c | 488 | panic("ran off end of tape\n"); |
e108d3a2 | 489 | if (ishead(&spcl) == FAIL) |
f78e116c | 490 | panic("not at beginning of a file\n"); |
e108d3a2 | 491 | if (!gettingfile && setjmp(restart) != 0) |
f78e116c KM |
492 | return; |
493 | gettingfile++; | |
494 | loop: | |
495 | for (i = 0; i < spcl.c_count; i++) { | |
496 | if (spcl.c_addr[i]) { | |
497 | readtape(&buf[curblk++][0]); | |
498 | if (curblk == fssize / TP_BSIZE) { | |
499 | (*f1)(buf, size > TP_BSIZE ? | |
500 | (long) (fssize) : | |
501 | (curblk - 1) * TP_BSIZE + size); | |
502 | curblk = 0; | |
503 | } | |
504 | } else { | |
505 | if (curblk > 0) { | |
506 | (*f1)(buf, size > TP_BSIZE ? | |
507 | (long) (curblk * TP_BSIZE) : | |
508 | (curblk - 1) * TP_BSIZE + size); | |
509 | curblk = 0; | |
510 | } | |
511 | (*f2)(clearedbuf, size > TP_BSIZE ? | |
512 | (long) TP_BSIZE : size); | |
513 | } | |
4f8ea093 KM |
514 | if ((size -= TP_BSIZE) <= 0) { |
515 | for (i++; i < spcl.c_count; i++) | |
516 | if (spcl.c_addr[i]) | |
517 | readtape(junk); | |
9f13f26d | 518 | break; |
4f8ea093 | 519 | } |
f78e116c | 520 | } |
5c5f44c7 | 521 | if (readhdr(&spcl) == GOOD && size > 0) { |
9f13f26d KM |
522 | if (checktype(&spcl, TS_ADDR) == GOOD) |
523 | goto loop; | |
768eb687 | 524 | dprintf(stdout, "Missing address (header) block for %s\n", |
f78e116c | 525 | curfile.name); |
f78e116c | 526 | } |
9f13f26d | 527 | if (curblk > 0) |
f78e116c | 528 | (*f1)(buf, (curblk * TP_BSIZE) + size); |
b32320ae | 529 | findinode(&spcl); |
f78e116c KM |
530 | gettingfile = 0; |
531 | } | |
532 | ||
533 | /* | |
534 | * The next routines are called during file extraction to | |
535 | * put the data into the right form and place. | |
536 | */ | |
537 | xtrfile(buf, size) | |
538 | char *buf; | |
539 | long size; | |
540 | { | |
541 | ||
542 | if (write(ofile, buf, (int) size) == -1) { | |
543 | fprintf(stderr, "write error extracting inode %d, name %s\n", | |
544 | curfile.ino, curfile.name); | |
545 | perror("write"); | |
546 | done(1); | |
547 | } | |
548 | } | |
549 | ||
550 | xtrskip(buf, size) | |
551 | char *buf; | |
552 | long size; | |
553 | { | |
554 | ||
555 | #ifdef lint | |
556 | buf = buf; | |
557 | #endif | |
558 | if (lseek(ofile, size, 1) == (long)-1) { | |
559 | fprintf(stderr, "seek error extracting inode %d, name %s\n", | |
560 | curfile.ino, curfile.name); | |
561 | perror("lseek"); | |
562 | done(1); | |
563 | } | |
564 | } | |
565 | ||
566 | xtrlnkfile(buf, size) | |
567 | char *buf; | |
568 | long size; | |
569 | { | |
570 | ||
571 | pathlen += size; | |
572 | if (pathlen > MAXPATHLEN) { | |
573 | fprintf(stderr, "symbolic link name: %s->%s%s; too long %d\n", | |
574 | curfile.name, lnkbuf, buf, pathlen); | |
575 | done(1); | |
576 | } | |
538cb7bb | 577 | (void) strcat(lnkbuf, buf); |
f78e116c KM |
578 | } |
579 | ||
580 | xtrlnkskip(buf, size) | |
581 | char *buf; | |
582 | long size; | |
583 | { | |
584 | ||
585 | #ifdef lint | |
586 | buf = buf, size = size; | |
587 | #endif | |
588 | fprintf(stderr, "unallocated block in symbolic link %s\n", | |
589 | curfile.name); | |
590 | done(1); | |
591 | } | |
592 | ||
593 | xtrmap(buf, size) | |
594 | char *buf; | |
595 | long size; | |
596 | { | |
597 | ||
598 | bcopy(buf, map, size); | |
cf6db0ab | 599 | map += size; |
f78e116c KM |
600 | } |
601 | ||
602 | xtrmapskip(buf, size) | |
603 | char *buf; | |
604 | long size; | |
605 | { | |
606 | ||
607 | #ifdef lint | |
608 | buf = buf; | |
f78e116c KM |
609 | #endif |
610 | panic("hole in map\n"); | |
cf6db0ab | 611 | map += size; |
f78e116c KM |
612 | } |
613 | ||
614 | null() {;} | |
615 | ||
616 | /* | |
617 | * Do the tape i/o, dealing with volume changes | |
618 | * etc.. | |
619 | */ | |
620 | readtape(b) | |
621 | char *b; | |
622 | { | |
623 | register long i; | |
7851e15d KM |
624 | long rd, newvol; |
625 | int cnt; | |
f78e116c | 626 | |
b97e998a KM |
627 | if (bct < ntrec) { |
628 | bcopy(&tbf[(bct++*TP_BSIZE)], b, (long)TP_BSIZE); | |
629 | blksread++; | |
630 | return; | |
631 | } | |
632 | for (i = 0; i < ntrec; i++) | |
633 | ((struct s_spcl *)&tbf[i*TP_BSIZE])->c_magic = 0; | |
634 | bct = 0; | |
635 | cnt = ntrec*TP_BSIZE; | |
636 | rd = 0; | |
637 | getmore: | |
e9e7ecc4 | 638 | #ifdef RRESTORE |
b97e998a | 639 | i = rmtread(&tbf[rd], cnt); |
f78e116c | 640 | #else |
b97e998a | 641 | i = read(mt, &tbf[rd], cnt); |
f78e116c | 642 | #endif |
b97e998a KM |
643 | if (i > 0 && i != ntrec*TP_BSIZE) { |
644 | if (pipein) { | |
74025ab9 KM |
645 | rd += i; |
646 | cnt -= i; | |
647 | if (cnt > 0) | |
648 | goto getmore; | |
649 | i = rd; | |
b97e998a KM |
650 | } else { |
651 | if (i % TP_BSIZE != 0) | |
652 | panic("partial block read: %d should be %d\n", | |
653 | i, ntrec * TP_BSIZE); | |
654 | bcopy((char *)&endoftapemark, &tbf[i], | |
655 | (long)TP_BSIZE); | |
74025ab9 | 656 | } |
b97e998a KM |
657 | } |
658 | if (i < 0) { | |
659 | fprintf(stderr, "Tape read error while "); | |
660 | switch (curfile.action) { | |
661 | default: | |
662 | fprintf(stderr, "trying to set up tape\n"); | |
663 | break; | |
664 | case UNKNOWN: | |
665 | fprintf(stderr, "trying to resyncronize\n"); | |
666 | break; | |
667 | case USING: | |
668 | fprintf(stderr, "restoring %s\n", curfile.name); | |
669 | break; | |
670 | case SKIP: | |
671 | fprintf(stderr, "skipping over inode %d\n", | |
672 | curfile.ino); | |
673 | break; | |
674 | } | |
675 | if (!yflag && !reply("continue")) | |
676 | done(1); | |
677 | i = ntrec*TP_BSIZE; | |
678 | bzero(tbf, i); | |
e9e7ecc4 | 679 | #ifdef RRESTORE |
b97e998a | 680 | if (rmtseek(i, 1) < 0) |
f78e116c | 681 | #else |
b97e998a | 682 | if (lseek(mt, i, 1) == (long)-1) |
f78e116c | 683 | #endif |
b97e998a KM |
684 | { |
685 | perror("continuation failed"); | |
686 | done(1); | |
f78e116c | 687 | } |
b97e998a KM |
688 | } |
689 | if (i == 0) { | |
ad073f89 KM |
690 | if (!pipein) { |
691 | newvol = volno + 1; | |
692 | volno = 0; | |
693 | getvol(newvol); | |
694 | readtape(b); | |
f78e116c KM |
695 | return; |
696 | } | |
ad073f89 KM |
697 | if (rd % TP_BSIZE != 0) |
698 | panic("partial block read: %d should be %d\n", | |
699 | rd, ntrec * TP_BSIZE); | |
700 | bcopy((char *)&endoftapemark, &tbf[rd], (long)TP_BSIZE); | |
f78e116c KM |
701 | } |
702 | bcopy(&tbf[(bct++*TP_BSIZE)], b, (long)TP_BSIZE); | |
2cb5dabb | 703 | blksread++; |
f78e116c KM |
704 | } |
705 | ||
b97e998a KM |
706 | findtapeblksize() |
707 | { | |
708 | register long i; | |
709 | ||
710 | for (i = 0; i < ntrec; i++) | |
711 | ((struct s_spcl *)&tbf[i * TP_BSIZE])->c_magic = 0; | |
712 | bct = 0; | |
713 | #ifdef RRESTORE | |
714 | i = rmtread(tbf, ntrec * TP_BSIZE); | |
715 | #else | |
716 | i = read(mt, tbf, ntrec * TP_BSIZE); | |
717 | #endif | |
718 | if (i <= 0) { | |
719 | perror("Tape read error"); | |
720 | done(1); | |
721 | } | |
722 | if (i % TP_BSIZE != 0) { | |
723 | fprintf(stderr, "Tape block size (%d) %s (%d)\n", | |
724 | i, "is not a multiple of dump block size", TP_BSIZE); | |
725 | done(1); | |
726 | } | |
727 | ntrec = i / TP_BSIZE; | |
728 | vprintf(stdout, "Tape block size is %d\n", ntrec); | |
729 | } | |
730 | ||
f78e116c KM |
731 | flsht() |
732 | { | |
733 | ||
19230a53 | 734 | bct = ntrec+1; |
f78e116c KM |
735 | } |
736 | ||
f78e116c KM |
737 | closemt() |
738 | { | |
739 | if (mt < 0) | |
740 | return; | |
e9e7ecc4 | 741 | #ifdef RRESTORE |
f78e116c KM |
742 | rmtclose(); |
743 | #else | |
768eb687 | 744 | (void) close(mt); |
f78e116c KM |
745 | #endif |
746 | } | |
747 | ||
748 | checkvol(b, t) | |
749 | struct s_spcl *b; | |
750 | long t; | |
751 | { | |
752 | ||
2cb5dabb KM |
753 | if (b->c_volume != t) |
754 | return(FAIL); | |
755 | return(GOOD); | |
f78e116c KM |
756 | } |
757 | ||
758 | readhdr(b) | |
759 | struct s_spcl *b; | |
760 | { | |
761 | ||
5c5f44c7 | 762 | if (gethead(b) == FAIL) { |
768eb687 | 763 | dprintf(stdout, "readhdr fails at %d blocks\n", blksread); |
2cb5dabb | 764 | return(FAIL); |
5c5f44c7 | 765 | } |
2cb5dabb | 766 | return(GOOD); |
f78e116c KM |
767 | } |
768 | ||
769 | /* | |
770 | * read the tape into buf, then return whether or | |
771 | * or not it is a header block. | |
772 | */ | |
773 | gethead(buf) | |
774 | struct s_spcl *buf; | |
775 | { | |
b4c41341 | 776 | long i, *j; |
f78e116c KM |
777 | union u_ospcl { |
778 | char dummy[TP_BSIZE]; | |
779 | struct s_ospcl { | |
2cb5dabb KM |
780 | long c_type; |
781 | long c_date; | |
782 | long c_ddate; | |
783 | long c_volume; | |
784 | long c_tapea; | |
cf6db0ab | 785 | u_short c_inumber; |
2cb5dabb KM |
786 | long c_magic; |
787 | long c_checksum; | |
f78e116c KM |
788 | struct odinode { |
789 | unsigned short odi_mode; | |
cf6db0ab KM |
790 | u_short odi_nlink; |
791 | u_short odi_uid; | |
792 | u_short odi_gid; | |
2cb5dabb KM |
793 | long odi_size; |
794 | long odi_rdev; | |
f78e116c | 795 | char odi_addr[36]; |
2cb5dabb KM |
796 | long odi_atime; |
797 | long odi_mtime; | |
798 | long odi_ctime; | |
f78e116c | 799 | } c_dinode; |
2cb5dabb KM |
800 | long c_count; |
801 | char c_addr[256]; | |
f78e116c KM |
802 | } s_ospcl; |
803 | } u_ospcl; | |
804 | ||
805 | if (!cvtflag) { | |
806 | readtape((char *)buf); | |
b4c41341 KS |
807 | if (buf->c_magic != NFS_MAGIC) { |
808 | if (swabl(buf->c_magic) != NFS_MAGIC) | |
809 | return (FAIL); | |
810 | if (!Bcvt) { | |
811 | vprintf(stdout, "Note: Doing Byte swapping\n"); | |
812 | Bcvt = 1; | |
813 | } | |
814 | } | |
815 | if (checksum((int *)buf) == FAIL) | |
816 | return (FAIL); | |
817 | if (Bcvt) | |
818 | swabst("8l4s31l", (char *)buf); | |
5c5f44c7 | 819 | goto good; |
f78e116c KM |
820 | } |
821 | readtape((char *)(&u_ospcl.s_ospcl)); | |
822 | bzero((char *)buf, (long)TP_BSIZE); | |
823 | buf->c_type = u_ospcl.s_ospcl.c_type; | |
824 | buf->c_date = u_ospcl.s_ospcl.c_date; | |
825 | buf->c_ddate = u_ospcl.s_ospcl.c_ddate; | |
826 | buf->c_volume = u_ospcl.s_ospcl.c_volume; | |
827 | buf->c_tapea = u_ospcl.s_ospcl.c_tapea; | |
828 | buf->c_inumber = u_ospcl.s_ospcl.c_inumber; | |
829 | buf->c_checksum = u_ospcl.s_ospcl.c_checksum; | |
830 | buf->c_magic = u_ospcl.s_ospcl.c_magic; | |
831 | buf->c_dinode.di_mode = u_ospcl.s_ospcl.c_dinode.odi_mode; | |
832 | buf->c_dinode.di_nlink = u_ospcl.s_ospcl.c_dinode.odi_nlink; | |
833 | buf->c_dinode.di_uid = u_ospcl.s_ospcl.c_dinode.odi_uid; | |
834 | buf->c_dinode.di_gid = u_ospcl.s_ospcl.c_dinode.odi_gid; | |
835 | buf->c_dinode.di_size = u_ospcl.s_ospcl.c_dinode.odi_size; | |
836 | buf->c_dinode.di_rdev = u_ospcl.s_ospcl.c_dinode.odi_rdev; | |
837 | buf->c_dinode.di_atime = u_ospcl.s_ospcl.c_dinode.odi_atime; | |
838 | buf->c_dinode.di_mtime = u_ospcl.s_ospcl.c_dinode.odi_mtime; | |
839 | buf->c_dinode.di_ctime = u_ospcl.s_ospcl.c_dinode.odi_ctime; | |
840 | buf->c_count = u_ospcl.s_ospcl.c_count; | |
2cb5dabb | 841 | bcopy(u_ospcl.s_ospcl.c_addr, buf->c_addr, (long)256); |
f78e116c | 842 | if (u_ospcl.s_ospcl.c_magic != OFS_MAGIC || |
5c5f44c7 | 843 | checksum((int *)(&u_ospcl.s_ospcl)) == FAIL) |
2cb5dabb | 844 | return(FAIL); |
f78e116c | 845 | buf->c_magic = NFS_MAGIC; |
5c5f44c7 KM |
846 | |
847 | good: | |
b4c41341 KS |
848 | j = buf->c_dinode.di_ic.ic_size.val; |
849 | i = j[1]; | |
850 | if (buf->c_dinode.di_size == 0 && | |
851 | (buf->c_dinode.di_mode & IFMT) == IFDIR && Qcvt==0) { | |
852 | if (*j || i) { | |
853 | printf("Note: Doing Quad swapping\n"); | |
854 | Qcvt = 1; | |
855 | } | |
856 | } | |
857 | if (Qcvt) { | |
858 | j[1] = *j; *j = i; | |
859 | } | |
5c5f44c7 KM |
860 | switch (buf->c_type) { |
861 | ||
862 | case TS_CLRI: | |
863 | case TS_BITS: | |
864 | /* | |
865 | * Have to patch up missing information in bit map headers | |
866 | */ | |
867 | buf->c_inumber = 0; | |
868 | buf->c_dinode.di_size = buf->c_count * TP_BSIZE; | |
869 | for (i = 0; i < buf->c_count; i++) | |
870 | buf->c_addr[i]++; | |
871 | break; | |
872 | ||
873 | case TS_TAPE: | |
874 | case TS_END: | |
875 | buf->c_inumber = 0; | |
876 | break; | |
877 | ||
878 | case TS_INODE: | |
879 | case TS_ADDR: | |
880 | break; | |
881 | ||
882 | default: | |
883 | panic("gethead: unknown inode type %d\n", buf->c_type); | |
884 | break; | |
885 | } | |
2cb5dabb KM |
886 | if (dflag) |
887 | accthdr(buf); | |
888 | return(GOOD); | |
889 | } | |
890 | ||
891 | /* | |
892 | * Check that a header is where it belongs and predict the next header | |
893 | */ | |
894 | accthdr(header) | |
895 | struct s_spcl *header; | |
896 | { | |
7851e15d | 897 | static ino_t previno = 0x7fffffff; |
2cb5dabb KM |
898 | static int prevtype; |
899 | static long predict; | |
900 | long blks, i; | |
901 | ||
8d412b7c | 902 | if (header->c_type == TS_TAPE) { |
5c5f44c7 | 903 | fprintf(stderr, "Volume header\n"); |
b8f4e820 | 904 | previno = 0x7fffffff; |
5c5f44c7 KM |
905 | return; |
906 | } | |
7851e15d | 907 | if (previno == 0x7fffffff) |
2cb5dabb KM |
908 | goto newcalc; |
909 | switch (prevtype) { | |
2cb5dabb | 910 | case TS_BITS: |
5c5f44c7 | 911 | fprintf(stderr, "Dump mask header"); |
2cb5dabb KM |
912 | break; |
913 | case TS_CLRI: | |
5c5f44c7 | 914 | fprintf(stderr, "Remove mask header"); |
2cb5dabb KM |
915 | break; |
916 | case TS_INODE: | |
5c5f44c7 | 917 | fprintf(stderr, "File header, ino %d", previno); |
2cb5dabb KM |
918 | break; |
919 | case TS_ADDR: | |
5c5f44c7 | 920 | fprintf(stderr, "File continuation header, ino %d", previno); |
2cb5dabb KM |
921 | break; |
922 | case TS_END: | |
5c5f44c7 | 923 | fprintf(stderr, "End of tape header"); |
2cb5dabb KM |
924 | break; |
925 | } | |
2cb5dabb KM |
926 | if (predict != blksread - 1) |
927 | fprintf(stderr, "; predicted %d blocks, got %d blocks", | |
928 | predict, blksread - 1); | |
929 | fprintf(stderr, "\n"); | |
930 | newcalc: | |
931 | blks = 0; | |
5c5f44c7 | 932 | if (header->c_type != TS_END) |
2cb5dabb KM |
933 | for (i = 0; i < header->c_count; i++) |
934 | if (header->c_addr[i] != 0) | |
935 | blks++; | |
936 | predict = blks; | |
937 | blksread = 0; | |
938 | prevtype = header->c_type; | |
939 | previno = header->c_inumber; | |
f78e116c KM |
940 | } |
941 | ||
942 | /* | |
943 | * Find an inode header. | |
944 | * Complain if had to skip, and complain is set. | |
945 | */ | |
b32320ae | 946 | findinode(header) |
f78e116c | 947 | struct s_spcl *header; |
f78e116c | 948 | { |
2cb5dabb | 949 | static long skipcnt = 0; |
b8f4e820 KM |
950 | long i; |
951 | char buf[TP_BSIZE]; | |
f78e116c KM |
952 | |
953 | curfile.name = "<name unknown>"; | |
954 | curfile.action = UNKNOWN; | |
955 | curfile.dip = (struct dinode *)NIL; | |
956 | curfile.ino = 0; | |
2cb5dabb KM |
957 | if (ishead(header) == FAIL) { |
958 | skipcnt++; | |
7702e9a8 | 959 | while (gethead(header) == FAIL || header->c_date != dumpdate) |
f78e116c | 960 | skipcnt++; |
2cb5dabb | 961 | } |
f78e116c | 962 | for (;;) { |
b8f4e820 KM |
963 | if (checktype(header, TS_ADDR) == GOOD) { |
964 | /* | |
965 | * Skip up to the beginning of the next record | |
966 | */ | |
967 | for (i = 0; i < header->c_count; i++) | |
968 | if (header->c_addr[i]) | |
969 | readtape(buf); | |
970 | (void) gethead(header); | |
971 | continue; | |
972 | } | |
2cb5dabb | 973 | if (checktype(header, TS_INODE) == GOOD) { |
f78e116c KM |
974 | curfile.dip = &header->c_dinode; |
975 | curfile.ino = header->c_inumber; | |
976 | break; | |
977 | } | |
2cb5dabb | 978 | if (checktype(header, TS_END) == GOOD) { |
f78e116c KM |
979 | curfile.ino = maxino; |
980 | break; | |
981 | } | |
2cb5dabb | 982 | if (checktype(header, TS_CLRI) == GOOD) { |
f78e116c | 983 | curfile.name = "<file removal list>"; |
e108d3a2 | 984 | break; |
f78e116c | 985 | } |
2cb5dabb | 986 | if (checktype(header, TS_BITS) == GOOD) { |
f78e116c | 987 | curfile.name = "<file dump list>"; |
e108d3a2 | 988 | break; |
f78e116c | 989 | } |
2cb5dabb | 990 | while (gethead(header) == FAIL) |
f78e116c KM |
991 | skipcnt++; |
992 | } | |
b32320ae | 993 | if (skipcnt > 0) |
dd1900f1 | 994 | fprintf(stderr, "resync restore, skipped %d blocks\n", skipcnt); |
f78e116c KM |
995 | skipcnt = 0; |
996 | } | |
997 | ||
998 | /* | |
999 | * return whether or not the buffer contains a header block | |
1000 | */ | |
1001 | ishead(buf) | |
1002 | struct s_spcl *buf; | |
1003 | { | |
1004 | ||
1005 | if (buf->c_magic != NFS_MAGIC) | |
2cb5dabb KM |
1006 | return(FAIL); |
1007 | return(GOOD); | |
f78e116c KM |
1008 | } |
1009 | ||
1010 | checktype(b, t) | |
1011 | struct s_spcl *b; | |
1012 | int t; | |
1013 | { | |
1014 | ||
2cb5dabb KM |
1015 | if (b->c_type != t) |
1016 | return(FAIL); | |
1017 | return(GOOD); | |
f78e116c KM |
1018 | } |
1019 | ||
1020 | checksum(b) | |
1021 | register int *b; | |
1022 | { | |
1023 | register int i, j; | |
1024 | ||
1025 | j = sizeof(union u_spcl) / sizeof(int); | |
1026 | i = 0; | |
b4c41341 KS |
1027 | if(!Bcvt) { |
1028 | do | |
1029 | i += *b++; | |
1030 | while (--j); | |
1031 | } else { | |
1032 | /* What happens if we want to read restore tapes | |
1033 | for a 16bit int machine??? */ | |
1034 | do | |
1035 | i += swabl(*b++); | |
1036 | while (--j); | |
1037 | } | |
1038 | ||
f78e116c KM |
1039 | if (i != CHECKSUM) { |
1040 | fprintf(stderr, "Checksum error %o, inode %d file %s\n", i, | |
1041 | curfile.ino, curfile.name); | |
2cb5dabb | 1042 | return(FAIL); |
f78e116c | 1043 | } |
2cb5dabb | 1044 | return(GOOD); |
f78e116c KM |
1045 | } |
1046 | ||
e9e7ecc4 | 1047 | #ifdef RRESTORE |
74025ab9 | 1048 | /* VARARGS1 */ |
f78e116c KM |
1049 | msg(cp, a1, a2, a3) |
1050 | char *cp; | |
1051 | { | |
1052 | ||
1053 | fprintf(stderr, cp, a1, a2, a3); | |
1054 | } | |
e9e7ecc4 | 1055 | #endif RRESTORE |
b4c41341 KS |
1056 | |
1057 | swabst(cp, sp) | |
1058 | register char *cp, *sp; | |
1059 | { | |
1060 | int n = 0; | |
1061 | char c; | |
1062 | while(*cp) { | |
1063 | switch (*cp) { | |
1064 | case '0': case '1': case '2': case '3': case '4': | |
1065 | case '5': case '6': case '7': case '8': case '9': | |
1066 | n = (n * 10) + (*cp++ - '0'); | |
1067 | continue; | |
1068 | ||
1069 | case 's': case 'w': case 'h': | |
1070 | c = sp[0]; sp[0] = sp[1]; sp[1] = c; | |
1071 | sp++; | |
1072 | break; | |
1073 | ||
1074 | case 'l': | |
1075 | c = sp[0]; sp[0] = sp[3]; sp[3] = c; | |
1076 | c = sp[2]; sp[2] = sp[1]; sp[1] = c; | |
1077 | sp += 3; | |
1078 | } | |
1079 | sp++; /* Any other character, like 'b' counts as byte. */ | |
1080 | if (n <= 1) { | |
1081 | n = 0; cp++; | |
1082 | } else | |
1083 | n--; | |
1084 | } | |
1085 | } | |
1086 | swabl(x) { unsigned long l = x; swabst("l", (char *)&l); return l; } |