Commit | Line | Data |
---|---|---|
8c5eec2f | 1 | /* |
b42768a6 KB |
2 | * Copyright (c) 1983 The Regents of the University of California. |
3 | * All rights reserved. | |
4 | * | |
70ab3c27 | 5 | * %sccs.include.redist.c% |
8c5eec2f | 6 | */ |
f78e116c | 7 | |
8c5eec2f | 8 | #ifndef lint |
15822e16 | 9 | static char sccsid[] = "@(#)tape.c 5.26 (Berkeley) %G%"; |
b42768a6 | 10 | #endif /* not lint */ |
ebd1f727 | 11 | |
f78e116c | 12 | #include "restore.h" |
d9127117 | 13 | #include <protocols/dumprestore.h> |
f78e116c KM |
14 | #include <sys/ioctl.h> |
15 | #include <sys/mtio.h> | |
2cb5dabb | 16 | #include <sys/file.h> |
f78e116c | 17 | #include <setjmp.h> |
a7b24fe9 | 18 | #include <sys/stat.h> |
7abf8d65 | 19 | #include "pathnames.h" |
2cb5dabb | 20 | |
bdeceadb | 21 | static long fssize = MAXBSIZE; |
2cb5dabb KM |
22 | static int mt = -1; |
23 | static int pipein = 0; | |
7eb08dfe | 24 | static char magtape[BUFSIZ]; |
19230a53 | 25 | static int bct; |
c8fb0747 | 26 | static int numtrec; |
19230a53 | 27 | static char *tbf; |
2cb5dabb | 28 | static union u_spcl endoftapemark; |
2532f4a9 | 29 | static long blksread; /* blocks read since last header */ |
3b29a62c | 30 | static long tpblksread = 0; /* TP_BSIZE blocks read */ |
170639fd | 31 | static long tapesread; |
2cb5dabb KM |
32 | static jmp_buf restart; |
33 | static int gettingfile = 0; /* restart has a valid frame */ | |
2532f4a9 | 34 | static char *host = NULL; |
2cb5dabb KM |
35 | |
36 | static int ofile; | |
37 | static char *map; | |
38 | static char lnkbuf[MAXPATHLEN + 1]; | |
39 | static int pathlen; | |
f78e116c | 40 | |
b4c41341 KS |
41 | int Bcvt; /* Swap Bytes (for CCI or sun) */ |
42 | static int Qcvt; /* Swap quads (for sun) */ | |
025e61b9 | 43 | u_long swabl(); |
2532f4a9 | 44 | |
f78e116c KM |
45 | /* |
46 | * Set up an input source | |
47 | */ | |
48 | setinput(source) | |
49 | char *source; | |
50 | { | |
7abf8d65 | 51 | extern int errno; |
7abf8d65 | 52 | char *strerror(); |
f78e116c | 53 | |
19230a53 | 54 | flsht(); |
b97e998a KM |
55 | if (bflag) |
56 | newtapebuf(ntrec); | |
57 | else | |
58 | newtapebuf(NTREC > HIGHDENSITYTREC ? NTREC : HIGHDENSITYTREC); | |
9c695c61 | 59 | terminal = stdin; |
2532f4a9 | 60 | |
e9e7ecc4 | 61 | #ifdef RRESTORE |
2532f4a9 KM |
62 | if (index(source, ':')) { |
63 | host = source; | |
64 | source = index(host, ':'); | |
65 | *source++ = '\0'; | |
66 | if (rmthost(host) == 0) | |
67 | done(1); | |
68 | } else | |
69 | #endif | |
9c695c61 | 70 | if (strcmp(source, "-") == 0) { |
b677c5d7 KM |
71 | /* |
72 | * Since input is coming from a pipe we must establish | |
73 | * our own connection to the terminal. | |
74 | */ | |
7abf8d65 | 75 | terminal = fopen(_PATH_TTY, "r"); |
b677c5d7 | 76 | if (terminal == NULL) { |
7abf8d65 | 77 | (void)fprintf(stderr, "Cannot open %s: %s\n", |
2532f4a9 | 78 | _PATH_TTY, strerror(errno)); |
7abf8d65 | 79 | terminal = fopen(_PATH_DEVNULL, "r"); |
b8eb5f1f | 80 | if (terminal == NULL) { |
2532f4a9 KM |
81 | (void)fprintf(stderr, "Cannot open %s: %s\n", |
82 | _PATH_DEVNULL, strerror(errno)); | |
b8eb5f1f KM |
83 | done(1); |
84 | } | |
b677c5d7 | 85 | } |
2cb5dabb | 86 | pipein++; |
2cb5dabb | 87 | } |
2532f4a9 | 88 | setuid(getuid()); /* no longer need or want root privileges */ |
7eb08dfe | 89 | (void) strcpy(magtape, source); |
f78e116c KM |
90 | } |
91 | ||
b97e998a KM |
92 | newtapebuf(size) |
93 | long size; | |
94 | { | |
95 | static tbfsize = -1; | |
96 | ||
97 | ntrec = size; | |
98 | if (size <= tbfsize) | |
99 | return; | |
100 | if (tbf != NULL) | |
101 | free(tbf); | |
102 | tbf = (char *)malloc(size * TP_BSIZE); | |
103 | if (tbf == NULL) { | |
104 | fprintf(stderr, "Cannot allocate space for tape buffer\n"); | |
105 | done(1); | |
106 | } | |
107 | tbfsize = size; | |
108 | } | |
109 | ||
f78e116c KM |
110 | /* |
111 | * Verify that the tape drive can be accessed and | |
112 | * that it actually is a dump tape. | |
113 | */ | |
114 | setup() | |
115 | { | |
2cb5dabb | 116 | int i, j, *ip; |
f78e116c | 117 | struct stat stbuf; |
f78e116c KM |
118 | extern int xtrmap(), xtrmapskip(); |
119 | ||
120 | vprintf(stdout, "Verify tape and initialize maps\n"); | |
e9e7ecc4 | 121 | #ifdef RRESTORE |
2532f4a9 KM |
122 | if (host) |
123 | mt = rmtopen(magtape, 0); | |
124 | else | |
125 | #endif | |
2cb5dabb KM |
126 | if (pipein) |
127 | mt = 0; | |
2532f4a9 KM |
128 | else |
129 | mt = open(magtape, 0); | |
130 | if (mt < 0) { | |
e9e7ecc4 | 131 | perror(magtape); |
f78e116c KM |
132 | done(1); |
133 | } | |
768eb687 KM |
134 | volno = 1; |
135 | setdumpnum(); | |
f78e116c | 136 | flsht(); |
b97e998a KM |
137 | if (!pipein && !bflag) |
138 | findtapeblksize(); | |
5c5f44c7 | 139 | if (gethead(&spcl) == FAIL) { |
f78e116c | 140 | bct--; /* push back this block */ |
2532f4a9 | 141 | blksread--; |
3b29a62c | 142 | tpblksread--; |
f78e116c | 143 | cvtflag++; |
5c5f44c7 | 144 | if (gethead(&spcl) == FAIL) { |
f78e116c KM |
145 | fprintf(stderr, "Tape is not a dump tape\n"); |
146 | done(1); | |
147 | } | |
148 | fprintf(stderr, "Converting to new file system format.\n"); | |
149 | } | |
2cb5dabb KM |
150 | if (pipein) { |
151 | endoftapemark.s_spcl.c_magic = cvtflag ? OFS_MAGIC : NFS_MAGIC; | |
152 | endoftapemark.s_spcl.c_type = TS_END; | |
153 | ip = (int *)&endoftapemark; | |
154 | j = sizeof(union u_spcl) / sizeof(int); | |
155 | i = 0; | |
156 | do | |
157 | i += *ip++; | |
158 | while (--j); | |
159 | endoftapemark.s_spcl.c_checksum = CHECKSUM - i; | |
160 | } | |
b32320ae KM |
161 | if (vflag || command == 't') |
162 | printdumpinfo(); | |
f78e116c | 163 | dumptime = spcl.c_ddate; |
2cb5dabb | 164 | dumpdate = spcl.c_date; |
f78e116c | 165 | if (stat(".", &stbuf) < 0) { |
e9e7ecc4 | 166 | perror("cannot stat ."); |
f78e116c KM |
167 | done(1); |
168 | } | |
bdeceadb KM |
169 | if (stbuf.st_blksize > 0 && stbuf.st_blksize <= MAXBSIZE) |
170 | fssize = stbuf.st_blksize; | |
171 | if (((fssize - 1) & fssize) != 0) { | |
f78e116c KM |
172 | fprintf(stderr, "bad block size %d\n", fssize); |
173 | done(1); | |
174 | } | |
2cb5dabb | 175 | if (checkvol(&spcl, (long)1) == FAIL) { |
f78e116c KM |
176 | fprintf(stderr, "Tape is not volume 1 of the dump\n"); |
177 | done(1); | |
178 | } | |
2cb5dabb KM |
179 | if (readhdr(&spcl) == FAIL) |
180 | panic("no header after volume mark!\n"); | |
b32320ae | 181 | findinode(&spcl); |
2cb5dabb | 182 | if (checktype(&spcl, TS_CLRI) == FAIL) { |
f78e116c KM |
183 | fprintf(stderr, "Cannot find file removal list\n"); |
184 | done(1); | |
185 | } | |
2cb5dabb | 186 | maxino = (spcl.c_count * TP_BSIZE * NBBY) + 1; |
768eb687 | 187 | dprintf(stdout, "maxino = %d\n", maxino); |
7851e15d | 188 | map = calloc((unsigned)1, (unsigned)howmany(maxino, NBBY)); |
f78e116c KM |
189 | if (map == (char *)NIL) |
190 | panic("no memory for file removal list\n"); | |
cf6db0ab | 191 | clrimap = map; |
f78e116c KM |
192 | curfile.action = USING; |
193 | getfile(xtrmap, xtrmapskip); | |
2cb5dabb | 194 | if (checktype(&spcl, TS_BITS) == FAIL) { |
f78e116c KM |
195 | fprintf(stderr, "Cannot find file dump list\n"); |
196 | done(1); | |
197 | } | |
7851e15d | 198 | map = calloc((unsigned)1, (unsigned)howmany(maxino, NBBY)); |
f78e116c KM |
199 | if (map == (char *)NULL) |
200 | panic("no memory for file dump list\n"); | |
cf6db0ab | 201 | dumpmap = map; |
f78e116c KM |
202 | curfile.action = USING; |
203 | getfile(xtrmap, xtrmapskip); | |
f78e116c KM |
204 | } |
205 | ||
170639fd KM |
206 | /* |
207 | * Prompt user to load a new dump volume. | |
208 | * "Nextvol" is the next suggested volume to use. | |
209 | * This suggested volume is enforced when doing full | |
210 | * or incremental restores, but can be overrridden by | |
211 | * the user when only extracting a subset of the files. | |
212 | */ | |
f78e116c KM |
213 | getvol(nextvol) |
214 | long nextvol; | |
215 | { | |
3b29a62c | 216 | long newvol, savecnt, wantnext, i; |
f78e116c KM |
217 | union u_spcl tmpspcl; |
218 | # define tmpbuf tmpspcl.s_spcl | |
b32320ae | 219 | char buf[TP_BSIZE]; |
cb2a63da | 220 | extern char *ctime(); |
f78e116c | 221 | |
a162cc0b | 222 | if (nextvol == 1) { |
170639fd | 223 | tapesread = 0; |
a162cc0b KM |
224 | gettingfile = 0; |
225 | } | |
2cb5dabb | 226 | if (pipein) { |
e108d3a2 | 227 | if (nextvol != 1) |
2cb5dabb | 228 | panic("Changing volumes on pipe input?\n"); |
e108d3a2 KM |
229 | if (volno == 1) |
230 | return; | |
231 | goto gethdr; | |
2cb5dabb KM |
232 | } |
233 | savecnt = blksread; | |
f78e116c | 234 | again: |
e108d3a2 KM |
235 | if (pipein) |
236 | done(1); /* pipes do not get a second chance */ | |
3b29a62c | 237 | if (command == 'R' || command == 'r' || curfile.action != SKIP) { |
f78e116c | 238 | newvol = nextvol; |
3b29a62c KM |
239 | wantnext = 1; |
240 | } else { | |
f78e116c | 241 | newvol = 0; |
3b29a62c KM |
242 | wantnext = 0; |
243 | } | |
f78e116c | 244 | while (newvol <= 0) { |
170639fd KM |
245 | if (tapesread == 0) { |
246 | fprintf(stderr, "%s%s%s%s%s", | |
247 | "You have not read any tapes yet.\n", | |
248 | "Unless you know which volume your", | |
249 | " file(s) are on you should start\n", | |
250 | "with the last volume and work", | |
b4c41341 | 251 | " towards towards the first.\n"); |
170639fd KM |
252 | } else { |
253 | fprintf(stderr, "You have read volumes"); | |
254 | strcpy(tbf, ": "); | |
255 | for (i = 1; i < 32; i++) | |
256 | if (tapesread & (1 << i)) { | |
257 | fprintf(stderr, "%s%d", tbf, i); | |
258 | strcpy(tbf, ", "); | |
259 | } | |
260 | fprintf(stderr, "\n"); | |
261 | } | |
538cb7bb | 262 | do { |
b677c5d7 KM |
263 | fprintf(stderr, "Specify next volume #: "); |
264 | (void) fflush(stderr); | |
265 | (void) fgets(tbf, BUFSIZ, terminal); | |
266 | } while (!feof(terminal) && tbf[0] == '\n'); | |
267 | if (feof(terminal)) | |
538cb7bb | 268 | done(1); |
f78e116c KM |
269 | newvol = atoi(tbf); |
270 | if (newvol <= 0) { | |
271 | fprintf(stderr, | |
272 | "Volume numbers are positive numerics\n"); | |
273 | } | |
274 | } | |
170639fd KM |
275 | if (newvol == volno) { |
276 | tapesread |= 1 << volno; | |
f78e116c | 277 | return; |
170639fd | 278 | } |
f78e116c | 279 | closemt(); |
7eb08dfe | 280 | fprintf(stderr, "Mount tape volume %d\n", newvol); |
eb317d51 KM |
281 | fprintf(stderr, "Enter ``none'' if there are no more tapes\n"); |
282 | fprintf(stderr, "otherwise enter tape name (default: %s) ", magtape); | |
b677c5d7 | 283 | (void) fflush(stderr); |
7eb08dfe KM |
284 | (void) fgets(tbf, BUFSIZ, terminal); |
285 | if (feof(terminal)) | |
286 | done(1); | |
eb317d51 KM |
287 | if (!strcmp(tbf, "none\n")) { |
288 | curfile.name = "<name unknown>"; | |
289 | curfile.action = UNKNOWN; | |
290 | curfile.dip = (struct dinode *)NIL; | |
291 | curfile.ino = maxino; | |
292 | if (gettingfile) { | |
293 | gettingfile = 0; | |
294 | longjmp(restart, 1); | |
295 | } | |
296 | } | |
7eb08dfe KM |
297 | if (tbf[0] != '\n') { |
298 | (void) strcpy(magtape, tbf); | |
299 | magtape[strlen(magtape) - 1] = '\0'; | |
300 | } | |
e9e7ecc4 | 301 | #ifdef RRESTORE |
2532f4a9 KM |
302 | if (host) |
303 | mt = rmtopen(magtape, 0); | |
304 | else | |
f78e116c | 305 | #endif |
2532f4a9 KM |
306 | mt = open(magtape, 0); |
307 | ||
308 | if (mt == -1) { | |
7eb08dfe KM |
309 | fprintf(stderr, "Cannot open %s\n", magtape); |
310 | volno = -1; | |
f78e116c KM |
311 | goto again; |
312 | } | |
e108d3a2 | 313 | gethdr: |
f78e116c | 314 | volno = newvol; |
768eb687 | 315 | setdumpnum(); |
f78e116c | 316 | flsht(); |
2cb5dabb | 317 | if (readhdr(&tmpbuf) == FAIL) { |
f78e116c KM |
318 | fprintf(stderr, "tape is not dump tape\n"); |
319 | volno = 0; | |
320 | goto again; | |
321 | } | |
2cb5dabb | 322 | if (checkvol(&tmpbuf, volno) == FAIL) { |
f78e116c KM |
323 | fprintf(stderr, "Wrong volume (%d)\n", tmpbuf.c_volume); |
324 | volno = 0; | |
325 | goto again; | |
326 | } | |
2cb5dabb | 327 | if (tmpbuf.c_date != dumpdate || tmpbuf.c_ddate != dumptime) { |
3dbddecd KM |
328 | fprintf(stderr, "Wrong dump date\n\tgot: %s", |
329 | ctime(&tmpbuf.c_date)); | |
330 | fprintf(stderr, "\twanted: %s", ctime(&dumpdate)); | |
2cb5dabb KM |
331 | volno = 0; |
332 | goto again; | |
333 | } | |
170639fd | 334 | tapesread |= 1 << volno; |
5c5f44c7 | 335 | blksread = savecnt; |
3b29a62c KM |
336 | /* |
337 | * If continuing from the previous volume, skip over any | |
338 | * blocks read already at the end of the previous volume. | |
339 | * | |
340 | * If coming to this volume at random, skip to the beginning | |
341 | * of the next record. | |
342 | */ | |
343 | dprintf(stdout, "read %ld recs, tape starts with %ld\n", | |
344 | tpblksread, tmpbuf.c_firstrec); | |
345 | if (tmpbuf.c_type == TS_TAPE && (tmpbuf.c_flags & DR_NEWHEADER)) { | |
346 | if (!wantnext) { | |
347 | tpblksread = tmpbuf.c_firstrec; | |
348 | for (i = tmpbuf.c_count; i > 0; i--) | |
349 | readtape(buf); | |
350 | } else if (tmpbuf.c_firstrec > 0 && | |
351 | tmpbuf.c_firstrec < tpblksread - 1) { | |
352 | /* | |
353 | * -1 since we've read the volume header | |
354 | */ | |
355 | i = tpblksread - tmpbuf.c_firstrec - 1; | |
356 | dprintf(stderr, "Skipping %d duplicate record%s.\n", | |
357 | i, i > 1 ? "s" : ""); | |
358 | while (--i >= 0) | |
359 | readtape(buf); | |
360 | } | |
361 | } | |
f78e116c KM |
362 | if (curfile.action == USING) { |
363 | if (volno == 1) | |
364 | panic("active file into volume 1\n"); | |
365 | return; | |
366 | } | |
b32320ae KM |
367 | /* |
368 | * Skip up to the beginning of the next record | |
369 | */ | |
8d412b7c | 370 | if (tmpbuf.c_type == TS_TAPE && (tmpbuf.c_flags & DR_NEWHEADER)) |
b32320ae KM |
371 | for (i = tmpbuf.c_count; i > 0; i--) |
372 | readtape(buf); | |
5c5f44c7 | 373 | (void) gethead(&spcl); |
b32320ae | 374 | findinode(&spcl); |
f78e116c KM |
375 | if (gettingfile) { |
376 | gettingfile = 0; | |
377 | longjmp(restart, 1); | |
378 | } | |
379 | } | |
380 | ||
768eb687 KM |
381 | /* |
382 | * handle multiple dumps per tape by skipping forward to the | |
383 | * appropriate one. | |
384 | */ | |
385 | setdumpnum() | |
386 | { | |
387 | struct mtop tcom; | |
388 | ||
389 | if (dumpnum == 1 || volno != 1) | |
390 | return; | |
391 | if (pipein) { | |
392 | fprintf(stderr, "Cannot have multiple dumps on pipe input\n"); | |
393 | done(1); | |
394 | } | |
395 | tcom.mt_op = MTFSF; | |
396 | tcom.mt_count = dumpnum - 1; | |
e9e7ecc4 | 397 | #ifdef RRESTORE |
2532f4a9 KM |
398 | if (host) |
399 | rmtioctl(MTFSF, dumpnum - 1); | |
400 | else | |
768eb687 | 401 | #endif |
2532f4a9 KM |
402 | if (ioctl(mt, (int)MTIOCTOP, (char *)&tcom) < 0) |
403 | perror("ioctl MTFSF"); | |
768eb687 KM |
404 | } |
405 | ||
b32320ae KM |
406 | printdumpinfo() |
407 | { | |
cb2a63da | 408 | extern char *ctime(); |
b32320ae KM |
409 | |
410 | fprintf(stdout, "Dump date: %s", ctime(&spcl.c_date)); | |
f441de4a KM |
411 | fprintf(stdout, "Dumped from: %s", |
412 | (spcl.c_ddate == 0) ? "the epoch\n" : ctime(&spcl.c_ddate)); | |
b32320ae KM |
413 | if (spcl.c_host[0] == '\0') |
414 | return; | |
415 | fprintf(stderr, "Level %d dump of %s on %s:%s\n", | |
416 | spcl.c_level, spcl.c_filesys, spcl.c_host, spcl.c_dev); | |
417 | fprintf(stderr, "Label: %s\n", spcl.c_label); | |
418 | } | |
419 | ||
f78e116c KM |
420 | extractfile(name) |
421 | char *name; | |
422 | { | |
423 | int mode; | |
165b1daf | 424 | struct timeval timep[2]; |
f78e116c KM |
425 | struct entry *ep; |
426 | extern int xtrlnkfile(), xtrlnkskip(); | |
427 | extern int xtrfile(), xtrskip(); | |
428 | ||
429 | curfile.name = name; | |
430 | curfile.action = USING; | |
165b1daf KM |
431 | timep[0].tv_sec = curfile.dip->di_atime; |
432 | timep[0].tv_usec = 0; | |
433 | timep[1].tv_sec = curfile.dip->di_mtime; | |
434 | timep[1].tv_usec = 0; | |
f78e116c KM |
435 | mode = curfile.dip->di_mode; |
436 | switch (mode & IFMT) { | |
437 | ||
438 | default: | |
439 | fprintf(stderr, "%s: unknown file mode 0%o\n", name, mode); | |
440 | skipfile(); | |
441 | return (FAIL); | |
442 | ||
74e940f5 KM |
443 | case IFSOCK: |
444 | vprintf(stdout, "skipped socket %s\n", name); | |
445 | skipfile(); | |
446 | return (GOOD); | |
447 | ||
f78e116c KM |
448 | case IFDIR: |
449 | if (mflag) { | |
450 | ep = lookupname(name); | |
451 | if (ep == NIL || ep->e_flags & EXTRACT) | |
452 | panic("unextracted directory %s\n", name); | |
453 | skipfile(); | |
454 | return (GOOD); | |
455 | } | |
456 | vprintf(stdout, "extract file %s\n", name); | |
457 | return (genliteraldir(name, curfile.ino)); | |
458 | ||
459 | case IFLNK: | |
460 | lnkbuf[0] = '\0'; | |
461 | pathlen = 0; | |
462 | getfile(xtrlnkfile, xtrlnkskip); | |
463 | if (pathlen == 0) { | |
464 | vprintf(stdout, | |
465 | "%s: zero length symbolic link (ignored)\n", name); | |
bdeceadb KM |
466 | return (GOOD); |
467 | } | |
468 | return (linkit(lnkbuf, name, SYMLINK)); | |
f78e116c KM |
469 | |
470 | case IFCHR: | |
471 | case IFBLK: | |
472 | vprintf(stdout, "extract special file %s\n", name); | |
414c4f09 KM |
473 | if (Nflag) { |
474 | skipfile(); | |
475 | return (GOOD); | |
476 | } | |
f78e116c | 477 | if (mknod(name, mode, (int)curfile.dip->di_rdev) < 0) { |
e9e7ecc4 KM |
478 | fprintf(stderr, "%s: ", name); |
479 | (void) fflush(stderr); | |
480 | perror("cannot create special file"); | |
f78e116c KM |
481 | skipfile(); |
482 | return (FAIL); | |
483 | } | |
768eb687 KM |
484 | (void) chown(name, curfile.dip->di_uid, curfile.dip->di_gid); |
485 | (void) chmod(name, mode); | |
f78e116c | 486 | skipfile(); |
165b1daf | 487 | utimes(name, timep); |
f78e116c KM |
488 | return (GOOD); |
489 | ||
490 | case IFREG: | |
491 | vprintf(stdout, "extract file %s\n", name); | |
414c4f09 KM |
492 | if (Nflag) { |
493 | skipfile(); | |
494 | return (GOOD); | |
495 | } | |
15aeb519 | 496 | if ((ofile = creat(name, 0666)) < 0) { |
e9e7ecc4 KM |
497 | fprintf(stderr, "%s: ", name); |
498 | (void) fflush(stderr); | |
499 | perror("cannot create file"); | |
f78e116c KM |
500 | skipfile(); |
501 | return (FAIL); | |
502 | } | |
768eb687 KM |
503 | (void) fchown(ofile, curfile.dip->di_uid, curfile.dip->di_gid); |
504 | (void) fchmod(ofile, mode); | |
f78e116c | 505 | getfile(xtrfile, xtrskip); |
768eb687 | 506 | (void) close(ofile); |
165b1daf | 507 | utimes(name, timep); |
f78e116c KM |
508 | return (GOOD); |
509 | } | |
510 | /* NOTREACHED */ | |
511 | } | |
512 | ||
e108d3a2 KM |
513 | /* |
514 | * skip over bit maps on the tape | |
515 | */ | |
516 | skipmaps() | |
517 | { | |
518 | ||
519 | while (checktype(&spcl, TS_CLRI) == GOOD || | |
520 | checktype(&spcl, TS_BITS) == GOOD) | |
521 | skipfile(); | |
522 | } | |
523 | ||
524 | /* | |
525 | * skip over a file on the tape | |
526 | */ | |
f78e116c KM |
527 | skipfile() |
528 | { | |
529 | extern int null(); | |
530 | ||
531 | curfile.action = SKIP; | |
532 | getfile(null, null); | |
533 | } | |
534 | ||
535 | /* | |
536 | * Do the file extraction, calling the supplied functions | |
537 | * with the blocks | |
538 | */ | |
539 | getfile(f1, f2) | |
540 | int (*f2)(), (*f1)(); | |
541 | { | |
542 | register int i; | |
543 | int curblk = 0; | |
544 | off_t size = spcl.c_dinode.di_size; | |
545 | static char clearedbuf[MAXBSIZE]; | |
546 | char buf[MAXBSIZE / TP_BSIZE][TP_BSIZE]; | |
4f8ea093 | 547 | char junk[TP_BSIZE]; |
f78e116c | 548 | |
2cb5dabb | 549 | if (checktype(&spcl, TS_END) == GOOD) |
f78e116c | 550 | panic("ran off end of tape\n"); |
e108d3a2 | 551 | if (ishead(&spcl) == FAIL) |
f78e116c | 552 | panic("not at beginning of a file\n"); |
e108d3a2 | 553 | if (!gettingfile && setjmp(restart) != 0) |
f78e116c KM |
554 | return; |
555 | gettingfile++; | |
556 | loop: | |
557 | for (i = 0; i < spcl.c_count; i++) { | |
558 | if (spcl.c_addr[i]) { | |
559 | readtape(&buf[curblk++][0]); | |
560 | if (curblk == fssize / TP_BSIZE) { | |
561 | (*f1)(buf, size > TP_BSIZE ? | |
562 | (long) (fssize) : | |
563 | (curblk - 1) * TP_BSIZE + size); | |
564 | curblk = 0; | |
565 | } | |
566 | } else { | |
567 | if (curblk > 0) { | |
568 | (*f1)(buf, size > TP_BSIZE ? | |
569 | (long) (curblk * TP_BSIZE) : | |
570 | (curblk - 1) * TP_BSIZE + size); | |
571 | curblk = 0; | |
572 | } | |
573 | (*f2)(clearedbuf, size > TP_BSIZE ? | |
574 | (long) TP_BSIZE : size); | |
575 | } | |
4f8ea093 KM |
576 | if ((size -= TP_BSIZE) <= 0) { |
577 | for (i++; i < spcl.c_count; i++) | |
578 | if (spcl.c_addr[i]) | |
579 | readtape(junk); | |
9f13f26d | 580 | break; |
4f8ea093 | 581 | } |
f78e116c | 582 | } |
5c5f44c7 | 583 | if (readhdr(&spcl) == GOOD && size > 0) { |
9f13f26d KM |
584 | if (checktype(&spcl, TS_ADDR) == GOOD) |
585 | goto loop; | |
768eb687 | 586 | dprintf(stdout, "Missing address (header) block for %s\n", |
f78e116c | 587 | curfile.name); |
f78e116c | 588 | } |
9f13f26d | 589 | if (curblk > 0) |
f78e116c | 590 | (*f1)(buf, (curblk * TP_BSIZE) + size); |
b32320ae | 591 | findinode(&spcl); |
f78e116c KM |
592 | gettingfile = 0; |
593 | } | |
594 | ||
595 | /* | |
596 | * The next routines are called during file extraction to | |
597 | * put the data into the right form and place. | |
598 | */ | |
599 | xtrfile(buf, size) | |
600 | char *buf; | |
601 | long size; | |
602 | { | |
603 | ||
414c4f09 KM |
604 | if (Nflag) |
605 | return; | |
f78e116c KM |
606 | if (write(ofile, buf, (int) size) == -1) { |
607 | fprintf(stderr, "write error extracting inode %d, name %s\n", | |
608 | curfile.ino, curfile.name); | |
609 | perror("write"); | |
610 | done(1); | |
611 | } | |
612 | } | |
613 | ||
614 | xtrskip(buf, size) | |
615 | char *buf; | |
616 | long size; | |
617 | { | |
618 | ||
619 | #ifdef lint | |
620 | buf = buf; | |
621 | #endif | |
622 | if (lseek(ofile, size, 1) == (long)-1) { | |
623 | fprintf(stderr, "seek error extracting inode %d, name %s\n", | |
624 | curfile.ino, curfile.name); | |
625 | perror("lseek"); | |
626 | done(1); | |
627 | } | |
628 | } | |
629 | ||
630 | xtrlnkfile(buf, size) | |
631 | char *buf; | |
632 | long size; | |
633 | { | |
634 | ||
635 | pathlen += size; | |
636 | if (pathlen > MAXPATHLEN) { | |
637 | fprintf(stderr, "symbolic link name: %s->%s%s; too long %d\n", | |
638 | curfile.name, lnkbuf, buf, pathlen); | |
639 | done(1); | |
640 | } | |
538cb7bb | 641 | (void) strcat(lnkbuf, buf); |
f78e116c KM |
642 | } |
643 | ||
644 | xtrlnkskip(buf, size) | |
645 | char *buf; | |
646 | long size; | |
647 | { | |
648 | ||
649 | #ifdef lint | |
650 | buf = buf, size = size; | |
651 | #endif | |
652 | fprintf(stderr, "unallocated block in symbolic link %s\n", | |
653 | curfile.name); | |
654 | done(1); | |
655 | } | |
656 | ||
657 | xtrmap(buf, size) | |
658 | char *buf; | |
659 | long size; | |
660 | { | |
661 | ||
662 | bcopy(buf, map, size); | |
cf6db0ab | 663 | map += size; |
f78e116c KM |
664 | } |
665 | ||
666 | xtrmapskip(buf, size) | |
667 | char *buf; | |
668 | long size; | |
669 | { | |
670 | ||
671 | #ifdef lint | |
672 | buf = buf; | |
f78e116c KM |
673 | #endif |
674 | panic("hole in map\n"); | |
cf6db0ab | 675 | map += size; |
f78e116c KM |
676 | } |
677 | ||
678 | null() {;} | |
679 | ||
680 | /* | |
681 | * Do the tape i/o, dealing with volume changes | |
682 | * etc.. | |
683 | */ | |
684 | readtape(b) | |
685 | char *b; | |
686 | { | |
687 | register long i; | |
7851e15d KM |
688 | long rd, newvol; |
689 | int cnt; | |
2532f4a9 | 690 | int seek_failed; |
f78e116c | 691 | |
c8fb0747 | 692 | if (bct < numtrec) { |
b97e998a KM |
693 | bcopy(&tbf[(bct++*TP_BSIZE)], b, (long)TP_BSIZE); |
694 | blksread++; | |
3b29a62c | 695 | tpblksread++; |
b97e998a KM |
696 | return; |
697 | } | |
698 | for (i = 0; i < ntrec; i++) | |
699 | ((struct s_spcl *)&tbf[i*TP_BSIZE])->c_magic = 0; | |
c8fb0747 KM |
700 | if (numtrec == 0) |
701 | numtrec = ntrec; | |
2532f4a9 | 702 | cnt = ntrec * TP_BSIZE; |
b97e998a KM |
703 | rd = 0; |
704 | getmore: | |
e9e7ecc4 | 705 | #ifdef RRESTORE |
2532f4a9 KM |
706 | if (host) |
707 | i = rmtread(&tbf[rd], cnt); | |
708 | else | |
f78e116c | 709 | #endif |
2532f4a9 | 710 | i = read(mt, &tbf[rd], cnt); |
c8fb0747 KM |
711 | /* |
712 | * Check for mid-tape short read error. | |
2532f4a9 | 713 | * If found, skip rest of buffer and start with the next. |
c8fb0747 | 714 | */ |
2532f4a9 KM |
715 | if (!pipein && numtrec < ntrec && i > 0) { |
716 | dprintf(stdout, "mid-media short read error.\n"); | |
c8fb0747 | 717 | numtrec = ntrec; |
c8fb0747 KM |
718 | } |
719 | /* | |
720 | * Handle partial block read. | |
721 | */ | |
2532f4a9 | 722 | if (i > 0 && i != ntrec * TP_BSIZE) { |
b97e998a | 723 | if (pipein) { |
74025ab9 KM |
724 | rd += i; |
725 | cnt -= i; | |
726 | if (cnt > 0) | |
727 | goto getmore; | |
728 | i = rd; | |
b97e998a | 729 | } else { |
2532f4a9 KM |
730 | /* |
731 | * Short read. Process the blocks read. | |
732 | */ | |
b97e998a | 733 | if (i % TP_BSIZE != 0) |
2532f4a9 KM |
734 | vprintf(stdout, |
735 | "partial block read: %d should be %d\n", | |
736 | i, ntrec * TP_BSIZE); | |
c8fb0747 | 737 | numtrec = i / TP_BSIZE; |
74025ab9 | 738 | } |
b97e998a | 739 | } |
c8fb0747 KM |
740 | /* |
741 | * Handle read error. | |
742 | */ | |
b97e998a KM |
743 | if (i < 0) { |
744 | fprintf(stderr, "Tape read error while "); | |
745 | switch (curfile.action) { | |
746 | default: | |
747 | fprintf(stderr, "trying to set up tape\n"); | |
748 | break; | |
749 | case UNKNOWN: | |
bf7abb47 | 750 | fprintf(stderr, "trying to resynchronize\n"); |
b97e998a KM |
751 | break; |
752 | case USING: | |
753 | fprintf(stderr, "restoring %s\n", curfile.name); | |
754 | break; | |
755 | case SKIP: | |
756 | fprintf(stderr, "skipping over inode %d\n", | |
757 | curfile.ino); | |
758 | break; | |
759 | } | |
760 | if (!yflag && !reply("continue")) | |
761 | done(1); | |
762 | i = ntrec*TP_BSIZE; | |
763 | bzero(tbf, i); | |
e9e7ecc4 | 764 | #ifdef RRESTORE |
2532f4a9 KM |
765 | if (host) |
766 | seek_failed = (rmtseek(i, 1) < 0); | |
767 | else | |
f78e116c | 768 | #endif |
2532f4a9 KM |
769 | seek_failed = (lseek(mt, i, 1) == (long)-1); |
770 | ||
771 | if (seek_failed) { | |
b97e998a KM |
772 | perror("continuation failed"); |
773 | done(1); | |
f78e116c | 774 | } |
b97e998a | 775 | } |
c8fb0747 KM |
776 | /* |
777 | * Handle end of tape. | |
778 | */ | |
b97e998a | 779 | if (i == 0) { |
2532f4a9 | 780 | vprintf(stdout, "End-of-tape encountered\n"); |
ad073f89 KM |
781 | if (!pipein) { |
782 | newvol = volno + 1; | |
783 | volno = 0; | |
c8fb0747 | 784 | numtrec = 0; |
ad073f89 KM |
785 | getvol(newvol); |
786 | readtape(b); | |
f78e116c KM |
787 | return; |
788 | } | |
ad073f89 KM |
789 | if (rd % TP_BSIZE != 0) |
790 | panic("partial block read: %d should be %d\n", | |
791 | rd, ntrec * TP_BSIZE); | |
792 | bcopy((char *)&endoftapemark, &tbf[rd], (long)TP_BSIZE); | |
f78e116c | 793 | } |
c8fb0747 | 794 | bct = 0; |
f78e116c | 795 | bcopy(&tbf[(bct++*TP_BSIZE)], b, (long)TP_BSIZE); |
2cb5dabb | 796 | blksread++; |
3b29a62c | 797 | tpblksread++; |
f78e116c KM |
798 | } |
799 | ||
b97e998a KM |
800 | findtapeblksize() |
801 | { | |
802 | register long i; | |
803 | ||
804 | for (i = 0; i < ntrec; i++) | |
805 | ((struct s_spcl *)&tbf[i * TP_BSIZE])->c_magic = 0; | |
806 | bct = 0; | |
807 | #ifdef RRESTORE | |
2532f4a9 KM |
808 | if (host) |
809 | i = rmtread(tbf, ntrec * TP_BSIZE); | |
810 | else | |
b97e998a | 811 | #endif |
2532f4a9 KM |
812 | i = read(mt, tbf, ntrec * TP_BSIZE); |
813 | ||
b97e998a KM |
814 | if (i <= 0) { |
815 | perror("Tape read error"); | |
816 | done(1); | |
817 | } | |
818 | if (i % TP_BSIZE != 0) { | |
819 | fprintf(stderr, "Tape block size (%d) %s (%d)\n", | |
820 | i, "is not a multiple of dump block size", TP_BSIZE); | |
821 | done(1); | |
822 | } | |
823 | ntrec = i / TP_BSIZE; | |
c8fb0747 | 824 | numtrec = ntrec; |
b97e998a KM |
825 | vprintf(stdout, "Tape block size is %d\n", ntrec); |
826 | } | |
827 | ||
f78e116c KM |
828 | flsht() |
829 | { | |
830 | ||
19230a53 | 831 | bct = ntrec+1; |
f78e116c KM |
832 | } |
833 | ||
f78e116c KM |
834 | closemt() |
835 | { | |
836 | if (mt < 0) | |
837 | return; | |
e9e7ecc4 | 838 | #ifdef RRESTORE |
2532f4a9 KM |
839 | if (host) |
840 | rmtclose(); | |
841 | else | |
f78e116c | 842 | #endif |
2532f4a9 | 843 | (void) close(mt); |
f78e116c KM |
844 | } |
845 | ||
846 | checkvol(b, t) | |
847 | struct s_spcl *b; | |
848 | long t; | |
849 | { | |
850 | ||
2cb5dabb KM |
851 | if (b->c_volume != t) |
852 | return(FAIL); | |
853 | return(GOOD); | |
f78e116c KM |
854 | } |
855 | ||
856 | readhdr(b) | |
857 | struct s_spcl *b; | |
858 | { | |
859 | ||
5c5f44c7 | 860 | if (gethead(b) == FAIL) { |
768eb687 | 861 | dprintf(stdout, "readhdr fails at %d blocks\n", blksread); |
2cb5dabb | 862 | return(FAIL); |
5c5f44c7 | 863 | } |
2cb5dabb | 864 | return(GOOD); |
f78e116c KM |
865 | } |
866 | ||
867 | /* | |
868 | * read the tape into buf, then return whether or | |
869 | * or not it is a header block. | |
870 | */ | |
871 | gethead(buf) | |
872 | struct s_spcl *buf; | |
873 | { | |
eb317d51 | 874 | long i; |
6e5750fa KM |
875 | union { |
876 | quad_t qval; | |
877 | long val[2]; | |
878 | } qcvt; | |
f78e116c KM |
879 | union u_ospcl { |
880 | char dummy[TP_BSIZE]; | |
881 | struct s_ospcl { | |
2cb5dabb KM |
882 | long c_type; |
883 | long c_date; | |
884 | long c_ddate; | |
885 | long c_volume; | |
886 | long c_tapea; | |
cf6db0ab | 887 | u_short c_inumber; |
2cb5dabb KM |
888 | long c_magic; |
889 | long c_checksum; | |
f78e116c KM |
890 | struct odinode { |
891 | unsigned short odi_mode; | |
cf6db0ab KM |
892 | u_short odi_nlink; |
893 | u_short odi_uid; | |
894 | u_short odi_gid; | |
2cb5dabb KM |
895 | long odi_size; |
896 | long odi_rdev; | |
f78e116c | 897 | char odi_addr[36]; |
2cb5dabb KM |
898 | long odi_atime; |
899 | long odi_mtime; | |
900 | long odi_ctime; | |
f78e116c | 901 | } c_dinode; |
2cb5dabb KM |
902 | long c_count; |
903 | char c_addr[256]; | |
f78e116c KM |
904 | } s_ospcl; |
905 | } u_ospcl; | |
906 | ||
907 | if (!cvtflag) { | |
908 | readtape((char *)buf); | |
b4c41341 KS |
909 | if (buf->c_magic != NFS_MAGIC) { |
910 | if (swabl(buf->c_magic) != NFS_MAGIC) | |
911 | return (FAIL); | |
912 | if (!Bcvt) { | |
913 | vprintf(stdout, "Note: Doing Byte swapping\n"); | |
914 | Bcvt = 1; | |
915 | } | |
916 | } | |
917 | if (checksum((int *)buf) == FAIL) | |
918 | return (FAIL); | |
919 | if (Bcvt) | |
920 | swabst("8l4s31l", (char *)buf); | |
5c5f44c7 | 921 | goto good; |
f78e116c KM |
922 | } |
923 | readtape((char *)(&u_ospcl.s_ospcl)); | |
924 | bzero((char *)buf, (long)TP_BSIZE); | |
925 | buf->c_type = u_ospcl.s_ospcl.c_type; | |
926 | buf->c_date = u_ospcl.s_ospcl.c_date; | |
927 | buf->c_ddate = u_ospcl.s_ospcl.c_ddate; | |
928 | buf->c_volume = u_ospcl.s_ospcl.c_volume; | |
929 | buf->c_tapea = u_ospcl.s_ospcl.c_tapea; | |
930 | buf->c_inumber = u_ospcl.s_ospcl.c_inumber; | |
931 | buf->c_checksum = u_ospcl.s_ospcl.c_checksum; | |
932 | buf->c_magic = u_ospcl.s_ospcl.c_magic; | |
933 | buf->c_dinode.di_mode = u_ospcl.s_ospcl.c_dinode.odi_mode; | |
934 | buf->c_dinode.di_nlink = u_ospcl.s_ospcl.c_dinode.odi_nlink; | |
935 | buf->c_dinode.di_uid = u_ospcl.s_ospcl.c_dinode.odi_uid; | |
936 | buf->c_dinode.di_gid = u_ospcl.s_ospcl.c_dinode.odi_gid; | |
937 | buf->c_dinode.di_size = u_ospcl.s_ospcl.c_dinode.odi_size; | |
938 | buf->c_dinode.di_rdev = u_ospcl.s_ospcl.c_dinode.odi_rdev; | |
939 | buf->c_dinode.di_atime = u_ospcl.s_ospcl.c_dinode.odi_atime; | |
940 | buf->c_dinode.di_mtime = u_ospcl.s_ospcl.c_dinode.odi_mtime; | |
941 | buf->c_dinode.di_ctime = u_ospcl.s_ospcl.c_dinode.odi_ctime; | |
942 | buf->c_count = u_ospcl.s_ospcl.c_count; | |
2cb5dabb | 943 | bcopy(u_ospcl.s_ospcl.c_addr, buf->c_addr, (long)256); |
f78e116c | 944 | if (u_ospcl.s_ospcl.c_magic != OFS_MAGIC || |
5c5f44c7 | 945 | checksum((int *)(&u_ospcl.s_ospcl)) == FAIL) |
2cb5dabb | 946 | return(FAIL); |
f78e116c | 947 | buf->c_magic = NFS_MAGIC; |
5c5f44c7 KM |
948 | |
949 | good: | |
15822e16 | 950 | if ((buf->c_dinode.di_size == 0 || buf->c_dinode.di_size > 0xfffffff) && |
025e61b9 | 951 | (buf->c_dinode.di_mode & IFMT) == IFDIR && Qcvt == 0) { |
6e5750fa KM |
952 | qcvt.qval = buf->c_dinode.di_size; |
953 | if (qcvt.val[0] || qcvt.val[1]) { | |
b4c41341 KS |
954 | printf("Note: Doing Quad swapping\n"); |
955 | Qcvt = 1; | |
956 | } | |
957 | } | |
958 | if (Qcvt) { | |
6e5750fa KM |
959 | qcvt.qval = buf->c_dinode.di_size; |
960 | i = qcvt.val[1]; | |
961 | qcvt.val[1] = qcvt.val[0]; | |
962 | qcvt.val[0] = i; | |
b4c41341 | 963 | } |
2532f4a9 | 964 | |
5c5f44c7 KM |
965 | switch (buf->c_type) { |
966 | ||
967 | case TS_CLRI: | |
968 | case TS_BITS: | |
969 | /* | |
970 | * Have to patch up missing information in bit map headers | |
971 | */ | |
972 | buf->c_inumber = 0; | |
973 | buf->c_dinode.di_size = buf->c_count * TP_BSIZE; | |
974 | for (i = 0; i < buf->c_count; i++) | |
975 | buf->c_addr[i]++; | |
976 | break; | |
977 | ||
978 | case TS_TAPE: | |
979 | case TS_END: | |
980 | buf->c_inumber = 0; | |
981 | break; | |
982 | ||
983 | case TS_INODE: | |
984 | case TS_ADDR: | |
985 | break; | |
986 | ||
987 | default: | |
988 | panic("gethead: unknown inode type %d\n", buf->c_type); | |
989 | break; | |
990 | } | |
2cb5dabb KM |
991 | if (dflag) |
992 | accthdr(buf); | |
993 | return(GOOD); | |
994 | } | |
995 | ||
996 | /* | |
997 | * Check that a header is where it belongs and predict the next header | |
998 | */ | |
999 | accthdr(header) | |
1000 | struct s_spcl *header; | |
1001 | { | |
7851e15d | 1002 | static ino_t previno = 0x7fffffff; |
2cb5dabb KM |
1003 | static int prevtype; |
1004 | static long predict; | |
1005 | long blks, i; | |
1006 | ||
8d412b7c | 1007 | if (header->c_type == TS_TAPE) { |
3b29a62c KM |
1008 | fprintf(stderr, "Volume header"); |
1009 | if (header->c_firstrec) | |
1010 | fprintf(stderr, " begins with record %d", | |
1011 | header->c_firstrec); | |
1012 | fprintf(stderr, "\n"); | |
b8f4e820 | 1013 | previno = 0x7fffffff; |
5c5f44c7 KM |
1014 | return; |
1015 | } | |
7851e15d | 1016 | if (previno == 0x7fffffff) |
2cb5dabb KM |
1017 | goto newcalc; |
1018 | switch (prevtype) { | |
2cb5dabb | 1019 | case TS_BITS: |
5c5f44c7 | 1020 | fprintf(stderr, "Dump mask header"); |
2cb5dabb KM |
1021 | break; |
1022 | case TS_CLRI: | |
5c5f44c7 | 1023 | fprintf(stderr, "Remove mask header"); |
2cb5dabb KM |
1024 | break; |
1025 | case TS_INODE: | |
5c5f44c7 | 1026 | fprintf(stderr, "File header, ino %d", previno); |
2cb5dabb KM |
1027 | break; |
1028 | case TS_ADDR: | |
5c5f44c7 | 1029 | fprintf(stderr, "File continuation header, ino %d", previno); |
2cb5dabb KM |
1030 | break; |
1031 | case TS_END: | |
5c5f44c7 | 1032 | fprintf(stderr, "End of tape header"); |
2cb5dabb KM |
1033 | break; |
1034 | } | |
2cb5dabb KM |
1035 | if (predict != blksread - 1) |
1036 | fprintf(stderr, "; predicted %d blocks, got %d blocks", | |
1037 | predict, blksread - 1); | |
1038 | fprintf(stderr, "\n"); | |
1039 | newcalc: | |
1040 | blks = 0; | |
5c5f44c7 | 1041 | if (header->c_type != TS_END) |
2cb5dabb KM |
1042 | for (i = 0; i < header->c_count; i++) |
1043 | if (header->c_addr[i] != 0) | |
1044 | blks++; | |
1045 | predict = blks; | |
1046 | blksread = 0; | |
1047 | prevtype = header->c_type; | |
1048 | previno = header->c_inumber; | |
f78e116c KM |
1049 | } |
1050 | ||
1051 | /* | |
1052 | * Find an inode header. | |
1053 | * Complain if had to skip, and complain is set. | |
1054 | */ | |
b32320ae | 1055 | findinode(header) |
f78e116c | 1056 | struct s_spcl *header; |
f78e116c | 1057 | { |
2cb5dabb | 1058 | static long skipcnt = 0; |
b8f4e820 KM |
1059 | long i; |
1060 | char buf[TP_BSIZE]; | |
f78e116c KM |
1061 | |
1062 | curfile.name = "<name unknown>"; | |
1063 | curfile.action = UNKNOWN; | |
1064 | curfile.dip = (struct dinode *)NIL; | |
1065 | curfile.ino = 0; | |
2cb5dabb KM |
1066 | if (ishead(header) == FAIL) { |
1067 | skipcnt++; | |
7702e9a8 | 1068 | while (gethead(header) == FAIL || header->c_date != dumpdate) |
f78e116c | 1069 | skipcnt++; |
2cb5dabb | 1070 | } |
f78e116c | 1071 | for (;;) { |
b8f4e820 KM |
1072 | if (checktype(header, TS_ADDR) == GOOD) { |
1073 | /* | |
1074 | * Skip up to the beginning of the next record | |
1075 | */ | |
1076 | for (i = 0; i < header->c_count; i++) | |
1077 | if (header->c_addr[i]) | |
1078 | readtape(buf); | |
1079 | (void) gethead(header); | |
1080 | continue; | |
1081 | } | |
2cb5dabb | 1082 | if (checktype(header, TS_INODE) == GOOD) { |
f78e116c KM |
1083 | curfile.dip = &header->c_dinode; |
1084 | curfile.ino = header->c_inumber; | |
1085 | break; | |
1086 | } | |
2cb5dabb | 1087 | if (checktype(header, TS_END) == GOOD) { |
f78e116c KM |
1088 | curfile.ino = maxino; |
1089 | break; | |
1090 | } | |
2cb5dabb | 1091 | if (checktype(header, TS_CLRI) == GOOD) { |
f78e116c | 1092 | curfile.name = "<file removal list>"; |
e108d3a2 | 1093 | break; |
f78e116c | 1094 | } |
2cb5dabb | 1095 | if (checktype(header, TS_BITS) == GOOD) { |
f78e116c | 1096 | curfile.name = "<file dump list>"; |
e108d3a2 | 1097 | break; |
f78e116c | 1098 | } |
2cb5dabb | 1099 | while (gethead(header) == FAIL) |
f78e116c KM |
1100 | skipcnt++; |
1101 | } | |
b32320ae | 1102 | if (skipcnt > 0) |
dd1900f1 | 1103 | fprintf(stderr, "resync restore, skipped %d blocks\n", skipcnt); |
f78e116c KM |
1104 | skipcnt = 0; |
1105 | } | |
1106 | ||
1107 | /* | |
1108 | * return whether or not the buffer contains a header block | |
1109 | */ | |
1110 | ishead(buf) | |
1111 | struct s_spcl *buf; | |
1112 | { | |
1113 | ||
1114 | if (buf->c_magic != NFS_MAGIC) | |
2cb5dabb KM |
1115 | return(FAIL); |
1116 | return(GOOD); | |
f78e116c KM |
1117 | } |
1118 | ||
1119 | checktype(b, t) | |
1120 | struct s_spcl *b; | |
1121 | int t; | |
1122 | { | |
1123 | ||
2cb5dabb KM |
1124 | if (b->c_type != t) |
1125 | return(FAIL); | |
1126 | return(GOOD); | |
f78e116c KM |
1127 | } |
1128 | ||
1129 | checksum(b) | |
1130 | register int *b; | |
1131 | { | |
1132 | register int i, j; | |
1133 | ||
1134 | j = sizeof(union u_spcl) / sizeof(int); | |
1135 | i = 0; | |
b4c41341 KS |
1136 | if(!Bcvt) { |
1137 | do | |
1138 | i += *b++; | |
1139 | while (--j); | |
1140 | } else { | |
1141 | /* What happens if we want to read restore tapes | |
1142 | for a 16bit int machine??? */ | |
1143 | do | |
1144 | i += swabl(*b++); | |
1145 | while (--j); | |
1146 | } | |
1147 | ||
f78e116c KM |
1148 | if (i != CHECKSUM) { |
1149 | fprintf(stderr, "Checksum error %o, inode %d file %s\n", i, | |
1150 | curfile.ino, curfile.name); | |
2cb5dabb | 1151 | return(FAIL); |
f78e116c | 1152 | } |
2cb5dabb | 1153 | return(GOOD); |
f78e116c KM |
1154 | } |
1155 | ||
e9e7ecc4 | 1156 | #ifdef RRESTORE |
74025ab9 | 1157 | /* VARARGS1 */ |
f78e116c KM |
1158 | msg(cp, a1, a2, a3) |
1159 | char *cp; | |
1160 | { | |
1161 | ||
1162 | fprintf(stderr, cp, a1, a2, a3); | |
1163 | } | |
2532f4a9 | 1164 | #endif /* RRESTORE */ |
b4c41341 | 1165 | |
025e61b9 KM |
1166 | u_char * |
1167 | swabshort(sp, n) | |
1168 | register u_char *sp; | |
1169 | register int n; | |
1170 | { | |
1171 | char c; | |
1172 | ||
1173 | while (--n >= 0) { | |
1174 | c = sp[0]; sp[0] = sp[1]; sp[1] = c; | |
1175 | sp += 2; | |
1176 | } | |
1177 | return (sp); | |
1178 | } | |
1179 | ||
1180 | u_char * | |
1181 | swablong(sp, n) | |
1182 | register u_char *sp; | |
1183 | register int n; | |
1184 | { | |
1185 | char c; | |
1186 | ||
1187 | while (--n >= 0) { | |
1188 | c = sp[0]; sp[0] = sp[3]; sp[3] = c; | |
1189 | c = sp[2]; sp[2] = sp[1]; sp[1] = c; | |
1190 | sp += 4; | |
1191 | } | |
1192 | return (sp); | |
1193 | } | |
1194 | ||
b4c41341 | 1195 | swabst(cp, sp) |
025e61b9 | 1196 | register u_char *cp, *sp; |
b4c41341 KS |
1197 | { |
1198 | int n = 0; | |
025e61b9 KM |
1199 | u_char c; |
1200 | ||
1201 | while (*cp) { | |
b4c41341 KS |
1202 | switch (*cp) { |
1203 | case '0': case '1': case '2': case '3': case '4': | |
1204 | case '5': case '6': case '7': case '8': case '9': | |
1205 | n = (n * 10) + (*cp++ - '0'); | |
1206 | continue; | |
1207 | ||
1208 | case 's': case 'w': case 'h': | |
025e61b9 KM |
1209 | if (n == 0) |
1210 | n = 1; | |
1211 | sp = swabshort(sp, n); | |
b4c41341 KS |
1212 | break; |
1213 | ||
1214 | case 'l': | |
025e61b9 KM |
1215 | if (n == 0) |
1216 | n = 1; | |
1217 | sp = swablong(sp, n); | |
1218 | break; | |
1219 | ||
1220 | default: /* Any other character, like 'b' counts as byte. */ | |
1221 | if (n == 0) | |
1222 | n = 1; | |
1223 | sp += n; | |
1224 | break; | |
b4c41341 | 1225 | } |
025e61b9 KM |
1226 | cp++; |
1227 | n = 0; | |
b4c41341 KS |
1228 | } |
1229 | } | |
025e61b9 KM |
1230 | |
1231 | u_long | |
1232 | swabl(x) | |
1233 | u_long x; | |
1234 | { | |
1235 | swabst("l", (char *)&x); | |
1236 | return (x); | |
1237 | } | |
7f327977 KM |
1238 | |
1239 | #ifdef sunos | |
1240 | char * | |
1241 | strerror(errnum) | |
1242 | int errnum; | |
1243 | { | |
1244 | extern int sys_nerr; | |
1245 | extern char *sys_errlist[]; | |
1246 | ||
1247 | if (errnum < sys_nerr) { | |
1248 | return(sys_errlist[errnum]); | |
1249 | } else { | |
1250 | return("bogus errno in strerror"); | |
1251 | } | |
1252 | } | |
1253 | #endif |