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 |
dad5e0ef | 9 | static char sccsid[] = "@(#)tape.c 5.31 (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 | |
dad5e0ef | 41 | int oldinofmt; /* old inode format conversion required */ |
b4c41341 KS |
42 | int Bcvt; /* Swap Bytes (for CCI or sun) */ |
43 | static int Qcvt; /* Swap quads (for sun) */ | |
025e61b9 | 44 | u_long swabl(); |
2532f4a9 | 45 | |
f78e116c KM |
46 | /* |
47 | * Set up an input source | |
48 | */ | |
49 | setinput(source) | |
50 | char *source; | |
51 | { | |
7abf8d65 | 52 | extern int errno; |
7abf8d65 | 53 | char *strerror(); |
f78e116c | 54 | |
19230a53 | 55 | flsht(); |
b97e998a KM |
56 | if (bflag) |
57 | newtapebuf(ntrec); | |
58 | else | |
59 | newtapebuf(NTREC > HIGHDENSITYTREC ? NTREC : HIGHDENSITYTREC); | |
9c695c61 | 60 | terminal = stdin; |
2532f4a9 | 61 | |
e9e7ecc4 | 62 | #ifdef RRESTORE |
2532f4a9 KM |
63 | if (index(source, ':')) { |
64 | host = source; | |
65 | source = index(host, ':'); | |
66 | *source++ = '\0'; | |
67 | if (rmthost(host) == 0) | |
68 | done(1); | |
69 | } else | |
70 | #endif | |
9c695c61 | 71 | if (strcmp(source, "-") == 0) { |
b677c5d7 KM |
72 | /* |
73 | * Since input is coming from a pipe we must establish | |
74 | * our own connection to the terminal. | |
75 | */ | |
7abf8d65 | 76 | terminal = fopen(_PATH_TTY, "r"); |
b677c5d7 | 77 | if (terminal == NULL) { |
7abf8d65 | 78 | (void)fprintf(stderr, "Cannot open %s: %s\n", |
2532f4a9 | 79 | _PATH_TTY, strerror(errno)); |
7abf8d65 | 80 | terminal = fopen(_PATH_DEVNULL, "r"); |
b8eb5f1f | 81 | if (terminal == NULL) { |
2532f4a9 KM |
82 | (void)fprintf(stderr, "Cannot open %s: %s\n", |
83 | _PATH_DEVNULL, strerror(errno)); | |
b8eb5f1f KM |
84 | done(1); |
85 | } | |
b677c5d7 | 86 | } |
2cb5dabb | 87 | pipein++; |
2cb5dabb | 88 | } |
2532f4a9 | 89 | setuid(getuid()); /* no longer need or want root privileges */ |
7eb08dfe | 90 | (void) strcpy(magtape, source); |
f78e116c KM |
91 | } |
92 | ||
b97e998a KM |
93 | newtapebuf(size) |
94 | long size; | |
95 | { | |
96 | static tbfsize = -1; | |
97 | ||
98 | ntrec = size; | |
99 | if (size <= tbfsize) | |
100 | return; | |
101 | if (tbf != NULL) | |
102 | free(tbf); | |
103 | tbf = (char *)malloc(size * TP_BSIZE); | |
104 | if (tbf == NULL) { | |
105 | fprintf(stderr, "Cannot allocate space for tape buffer\n"); | |
106 | done(1); | |
107 | } | |
108 | tbfsize = size; | |
109 | } | |
110 | ||
f78e116c KM |
111 | /* |
112 | * Verify that the tape drive can be accessed and | |
113 | * that it actually is a dump tape. | |
114 | */ | |
115 | setup() | |
116 | { | |
2cb5dabb | 117 | int i, j, *ip; |
f78e116c | 118 | struct stat stbuf; |
f78e116c KM |
119 | extern int xtrmap(), xtrmapskip(); |
120 | ||
121 | vprintf(stdout, "Verify tape and initialize maps\n"); | |
e9e7ecc4 | 122 | #ifdef RRESTORE |
2532f4a9 KM |
123 | if (host) |
124 | mt = rmtopen(magtape, 0); | |
125 | else | |
126 | #endif | |
2cb5dabb KM |
127 | if (pipein) |
128 | mt = 0; | |
2532f4a9 KM |
129 | else |
130 | mt = open(magtape, 0); | |
131 | if (mt < 0) { | |
e9e7ecc4 | 132 | perror(magtape); |
f78e116c KM |
133 | done(1); |
134 | } | |
768eb687 KM |
135 | volno = 1; |
136 | setdumpnum(); | |
f78e116c | 137 | flsht(); |
b97e998a KM |
138 | if (!pipein && !bflag) |
139 | findtapeblksize(); | |
5c5f44c7 | 140 | if (gethead(&spcl) == FAIL) { |
f78e116c | 141 | bct--; /* push back this block */ |
2532f4a9 | 142 | blksread--; |
3b29a62c | 143 | tpblksread--; |
f78e116c | 144 | cvtflag++; |
5c5f44c7 | 145 | if (gethead(&spcl) == FAIL) { |
f78e116c KM |
146 | fprintf(stderr, "Tape is not a dump tape\n"); |
147 | done(1); | |
148 | } | |
149 | fprintf(stderr, "Converting to new file system format.\n"); | |
150 | } | |
2cb5dabb KM |
151 | if (pipein) { |
152 | endoftapemark.s_spcl.c_magic = cvtflag ? OFS_MAGIC : NFS_MAGIC; | |
153 | endoftapemark.s_spcl.c_type = TS_END; | |
154 | ip = (int *)&endoftapemark; | |
155 | j = sizeof(union u_spcl) / sizeof(int); | |
156 | i = 0; | |
157 | do | |
158 | i += *ip++; | |
159 | while (--j); | |
160 | endoftapemark.s_spcl.c_checksum = CHECKSUM - i; | |
161 | } | |
b32320ae KM |
162 | if (vflag || command == 't') |
163 | printdumpinfo(); | |
f78e116c | 164 | dumptime = spcl.c_ddate; |
2cb5dabb | 165 | dumpdate = spcl.c_date; |
f78e116c | 166 | if (stat(".", &stbuf) < 0) { |
e9e7ecc4 | 167 | perror("cannot stat ."); |
f78e116c KM |
168 | done(1); |
169 | } | |
bdeceadb KM |
170 | if (stbuf.st_blksize > 0 && stbuf.st_blksize <= MAXBSIZE) |
171 | fssize = stbuf.st_blksize; | |
172 | if (((fssize - 1) & fssize) != 0) { | |
f78e116c KM |
173 | fprintf(stderr, "bad block size %d\n", fssize); |
174 | done(1); | |
175 | } | |
2cb5dabb | 176 | if (checkvol(&spcl, (long)1) == FAIL) { |
f78e116c KM |
177 | fprintf(stderr, "Tape is not volume 1 of the dump\n"); |
178 | done(1); | |
179 | } | |
2cb5dabb KM |
180 | if (readhdr(&spcl) == FAIL) |
181 | panic("no header after volume mark!\n"); | |
b32320ae | 182 | findinode(&spcl); |
2cb5dabb | 183 | if (checktype(&spcl, TS_CLRI) == FAIL) { |
f78e116c KM |
184 | fprintf(stderr, "Cannot find file removal list\n"); |
185 | done(1); | |
186 | } | |
2cb5dabb | 187 | maxino = (spcl.c_count * TP_BSIZE * NBBY) + 1; |
768eb687 | 188 | dprintf(stdout, "maxino = %d\n", maxino); |
7851e15d | 189 | map = calloc((unsigned)1, (unsigned)howmany(maxino, NBBY)); |
f78e116c KM |
190 | if (map == (char *)NIL) |
191 | panic("no memory for file removal list\n"); | |
cf6db0ab | 192 | clrimap = map; |
f78e116c KM |
193 | curfile.action = USING; |
194 | getfile(xtrmap, xtrmapskip); | |
2cb5dabb | 195 | if (checktype(&spcl, TS_BITS) == FAIL) { |
f78e116c KM |
196 | fprintf(stderr, "Cannot find file dump list\n"); |
197 | done(1); | |
198 | } | |
7851e15d | 199 | map = calloc((unsigned)1, (unsigned)howmany(maxino, NBBY)); |
f78e116c KM |
200 | if (map == (char *)NULL) |
201 | panic("no memory for file dump list\n"); | |
cf6db0ab | 202 | dumpmap = map; |
f78e116c KM |
203 | curfile.action = USING; |
204 | getfile(xtrmap, xtrmapskip); | |
f78e116c KM |
205 | } |
206 | ||
170639fd KM |
207 | /* |
208 | * Prompt user to load a new dump volume. | |
209 | * "Nextvol" is the next suggested volume to use. | |
210 | * This suggested volume is enforced when doing full | |
211 | * or incremental restores, but can be overrridden by | |
212 | * the user when only extracting a subset of the files. | |
213 | */ | |
f78e116c KM |
214 | getvol(nextvol) |
215 | long nextvol; | |
216 | { | |
3b29a62c | 217 | long newvol, savecnt, wantnext, i; |
f78e116c KM |
218 | union u_spcl tmpspcl; |
219 | # define tmpbuf tmpspcl.s_spcl | |
b32320ae | 220 | char buf[TP_BSIZE]; |
cb2a63da | 221 | extern char *ctime(); |
f78e116c | 222 | |
a162cc0b | 223 | if (nextvol == 1) { |
170639fd | 224 | tapesread = 0; |
a162cc0b KM |
225 | gettingfile = 0; |
226 | } | |
2cb5dabb | 227 | if (pipein) { |
e108d3a2 | 228 | if (nextvol != 1) |
2cb5dabb | 229 | panic("Changing volumes on pipe input?\n"); |
e108d3a2 KM |
230 | if (volno == 1) |
231 | return; | |
232 | goto gethdr; | |
2cb5dabb KM |
233 | } |
234 | savecnt = blksread; | |
f78e116c | 235 | again: |
e108d3a2 KM |
236 | if (pipein) |
237 | done(1); /* pipes do not get a second chance */ | |
3b29a62c | 238 | if (command == 'R' || command == 'r' || curfile.action != SKIP) { |
f78e116c | 239 | newvol = nextvol; |
3b29a62c KM |
240 | wantnext = 1; |
241 | } else { | |
f78e116c | 242 | newvol = 0; |
3b29a62c KM |
243 | wantnext = 0; |
244 | } | |
f78e116c | 245 | while (newvol <= 0) { |
170639fd KM |
246 | if (tapesread == 0) { |
247 | fprintf(stderr, "%s%s%s%s%s", | |
248 | "You have not read any tapes yet.\n", | |
249 | "Unless you know which volume your", | |
250 | " file(s) are on you should start\n", | |
251 | "with the last volume and work", | |
b4c41341 | 252 | " towards towards the first.\n"); |
170639fd KM |
253 | } else { |
254 | fprintf(stderr, "You have read volumes"); | |
255 | strcpy(tbf, ": "); | |
256 | for (i = 1; i < 32; i++) | |
257 | if (tapesread & (1 << i)) { | |
258 | fprintf(stderr, "%s%d", tbf, i); | |
259 | strcpy(tbf, ", "); | |
260 | } | |
261 | fprintf(stderr, "\n"); | |
262 | } | |
538cb7bb | 263 | do { |
b677c5d7 KM |
264 | fprintf(stderr, "Specify next volume #: "); |
265 | (void) fflush(stderr); | |
266 | (void) fgets(tbf, BUFSIZ, terminal); | |
267 | } while (!feof(terminal) && tbf[0] == '\n'); | |
268 | if (feof(terminal)) | |
538cb7bb | 269 | done(1); |
f78e116c KM |
270 | newvol = atoi(tbf); |
271 | if (newvol <= 0) { | |
272 | fprintf(stderr, | |
273 | "Volume numbers are positive numerics\n"); | |
274 | } | |
275 | } | |
170639fd KM |
276 | if (newvol == volno) { |
277 | tapesread |= 1 << volno; | |
f78e116c | 278 | return; |
170639fd | 279 | } |
f78e116c | 280 | closemt(); |
7eb08dfe | 281 | fprintf(stderr, "Mount tape volume %d\n", newvol); |
eb317d51 KM |
282 | fprintf(stderr, "Enter ``none'' if there are no more tapes\n"); |
283 | fprintf(stderr, "otherwise enter tape name (default: %s) ", magtape); | |
b677c5d7 | 284 | (void) fflush(stderr); |
7eb08dfe KM |
285 | (void) fgets(tbf, BUFSIZ, terminal); |
286 | if (feof(terminal)) | |
287 | done(1); | |
eb317d51 | 288 | if (!strcmp(tbf, "none\n")) { |
2657795e KM |
289 | terminateinput(); |
290 | return; | |
eb317d51 | 291 | } |
7eb08dfe KM |
292 | if (tbf[0] != '\n') { |
293 | (void) strcpy(magtape, tbf); | |
294 | magtape[strlen(magtape) - 1] = '\0'; | |
295 | } | |
e9e7ecc4 | 296 | #ifdef RRESTORE |
2532f4a9 KM |
297 | if (host) |
298 | mt = rmtopen(magtape, 0); | |
299 | else | |
f78e116c | 300 | #endif |
2532f4a9 KM |
301 | mt = open(magtape, 0); |
302 | ||
303 | if (mt == -1) { | |
7eb08dfe KM |
304 | fprintf(stderr, "Cannot open %s\n", magtape); |
305 | volno = -1; | |
f78e116c KM |
306 | goto again; |
307 | } | |
e108d3a2 | 308 | gethdr: |
f78e116c | 309 | volno = newvol; |
768eb687 | 310 | setdumpnum(); |
f78e116c | 311 | flsht(); |
2cb5dabb | 312 | if (readhdr(&tmpbuf) == FAIL) { |
f78e116c KM |
313 | fprintf(stderr, "tape is not dump tape\n"); |
314 | volno = 0; | |
315 | goto again; | |
316 | } | |
2cb5dabb | 317 | if (checkvol(&tmpbuf, volno) == FAIL) { |
f78e116c KM |
318 | fprintf(stderr, "Wrong volume (%d)\n", tmpbuf.c_volume); |
319 | volno = 0; | |
320 | goto again; | |
321 | } | |
2cb5dabb | 322 | if (tmpbuf.c_date != dumpdate || tmpbuf.c_ddate != dumptime) { |
3dbddecd KM |
323 | fprintf(stderr, "Wrong dump date\n\tgot: %s", |
324 | ctime(&tmpbuf.c_date)); | |
325 | fprintf(stderr, "\twanted: %s", ctime(&dumpdate)); | |
2cb5dabb KM |
326 | volno = 0; |
327 | goto again; | |
328 | } | |
170639fd | 329 | tapesread |= 1 << volno; |
5c5f44c7 | 330 | blksread = savecnt; |
3b29a62c KM |
331 | /* |
332 | * If continuing from the previous volume, skip over any | |
333 | * blocks read already at the end of the previous volume. | |
334 | * | |
335 | * If coming to this volume at random, skip to the beginning | |
336 | * of the next record. | |
337 | */ | |
338 | dprintf(stdout, "read %ld recs, tape starts with %ld\n", | |
339 | tpblksread, tmpbuf.c_firstrec); | |
340 | if (tmpbuf.c_type == TS_TAPE && (tmpbuf.c_flags & DR_NEWHEADER)) { | |
341 | if (!wantnext) { | |
342 | tpblksread = tmpbuf.c_firstrec; | |
343 | for (i = tmpbuf.c_count; i > 0; i--) | |
344 | readtape(buf); | |
345 | } else if (tmpbuf.c_firstrec > 0 && | |
346 | tmpbuf.c_firstrec < tpblksread - 1) { | |
347 | /* | |
348 | * -1 since we've read the volume header | |
349 | */ | |
350 | i = tpblksread - tmpbuf.c_firstrec - 1; | |
351 | dprintf(stderr, "Skipping %d duplicate record%s.\n", | |
352 | i, i > 1 ? "s" : ""); | |
353 | while (--i >= 0) | |
354 | readtape(buf); | |
355 | } | |
356 | } | |
f78e116c KM |
357 | if (curfile.action == USING) { |
358 | if (volno == 1) | |
359 | panic("active file into volume 1\n"); | |
360 | return; | |
361 | } | |
b32320ae KM |
362 | /* |
363 | * Skip up to the beginning of the next record | |
364 | */ | |
8d412b7c | 365 | if (tmpbuf.c_type == TS_TAPE && (tmpbuf.c_flags & DR_NEWHEADER)) |
b32320ae KM |
366 | for (i = tmpbuf.c_count; i > 0; i--) |
367 | readtape(buf); | |
5c5f44c7 | 368 | (void) gethead(&spcl); |
b32320ae | 369 | findinode(&spcl); |
f78e116c KM |
370 | if (gettingfile) { |
371 | gettingfile = 0; | |
372 | longjmp(restart, 1); | |
373 | } | |
374 | } | |
375 | ||
2657795e KM |
376 | /* |
377 | * Handle unexpected EOF. | |
378 | */ | |
379 | terminateinput() | |
380 | { | |
381 | ||
382 | if (gettingfile && curfile.action == USING) { | |
383 | printf("Warning: %s %s\n", | |
384 | "End-of-input encountered while extracting", curfile.name); | |
385 | } | |
386 | curfile.name = "<name unknown>"; | |
387 | curfile.action = UNKNOWN; | |
388 | curfile.dip = (struct dinode *)NIL; | |
389 | curfile.ino = maxino; | |
390 | if (gettingfile) { | |
391 | gettingfile = 0; | |
392 | longjmp(restart, 1); | |
393 | } | |
394 | } | |
395 | ||
768eb687 KM |
396 | /* |
397 | * handle multiple dumps per tape by skipping forward to the | |
398 | * appropriate one. | |
399 | */ | |
400 | setdumpnum() | |
401 | { | |
402 | struct mtop tcom; | |
403 | ||
404 | if (dumpnum == 1 || volno != 1) | |
405 | return; | |
406 | if (pipein) { | |
407 | fprintf(stderr, "Cannot have multiple dumps on pipe input\n"); | |
408 | done(1); | |
409 | } | |
410 | tcom.mt_op = MTFSF; | |
411 | tcom.mt_count = dumpnum - 1; | |
e9e7ecc4 | 412 | #ifdef RRESTORE |
2532f4a9 KM |
413 | if (host) |
414 | rmtioctl(MTFSF, dumpnum - 1); | |
415 | else | |
768eb687 | 416 | #endif |
2532f4a9 KM |
417 | if (ioctl(mt, (int)MTIOCTOP, (char *)&tcom) < 0) |
418 | perror("ioctl MTFSF"); | |
768eb687 KM |
419 | } |
420 | ||
b32320ae KM |
421 | printdumpinfo() |
422 | { | |
cb2a63da | 423 | extern char *ctime(); |
b32320ae KM |
424 | |
425 | fprintf(stdout, "Dump date: %s", ctime(&spcl.c_date)); | |
f441de4a KM |
426 | fprintf(stdout, "Dumped from: %s", |
427 | (spcl.c_ddate == 0) ? "the epoch\n" : ctime(&spcl.c_ddate)); | |
b32320ae KM |
428 | if (spcl.c_host[0] == '\0') |
429 | return; | |
430 | fprintf(stderr, "Level %d dump of %s on %s:%s\n", | |
431 | spcl.c_level, spcl.c_filesys, spcl.c_host, spcl.c_dev); | |
432 | fprintf(stderr, "Label: %s\n", spcl.c_label); | |
433 | } | |
434 | ||
f78e116c KM |
435 | extractfile(name) |
436 | char *name; | |
437 | { | |
438 | int mode; | |
165b1daf | 439 | struct timeval timep[2]; |
f78e116c KM |
440 | struct entry *ep; |
441 | extern int xtrlnkfile(), xtrlnkskip(); | |
442 | extern int xtrfile(), xtrskip(); | |
443 | ||
444 | curfile.name = name; | |
445 | curfile.action = USING; | |
4f57cc9f KM |
446 | timep[0].tv_sec = curfile.dip->di_atime.ts_sec; |
447 | timep[0].tv_usec = curfile.dip->di_atime.ts_nsec / 1000; | |
448 | timep[1].tv_sec = curfile.dip->di_mtime.ts_sec; | |
449 | timep[1].tv_usec = curfile.dip->di_mtime.ts_nsec / 1000; | |
f78e116c KM |
450 | mode = curfile.dip->di_mode; |
451 | switch (mode & IFMT) { | |
452 | ||
453 | default: | |
454 | fprintf(stderr, "%s: unknown file mode 0%o\n", name, mode); | |
455 | skipfile(); | |
456 | return (FAIL); | |
457 | ||
74e940f5 KM |
458 | case IFSOCK: |
459 | vprintf(stdout, "skipped socket %s\n", name); | |
460 | skipfile(); | |
461 | return (GOOD); | |
462 | ||
f78e116c KM |
463 | case IFDIR: |
464 | if (mflag) { | |
465 | ep = lookupname(name); | |
466 | if (ep == NIL || ep->e_flags & EXTRACT) | |
467 | panic("unextracted directory %s\n", name); | |
468 | skipfile(); | |
469 | return (GOOD); | |
470 | } | |
471 | vprintf(stdout, "extract file %s\n", name); | |
472 | return (genliteraldir(name, curfile.ino)); | |
473 | ||
474 | case IFLNK: | |
475 | lnkbuf[0] = '\0'; | |
476 | pathlen = 0; | |
477 | getfile(xtrlnkfile, xtrlnkskip); | |
478 | if (pathlen == 0) { | |
479 | vprintf(stdout, | |
480 | "%s: zero length symbolic link (ignored)\n", name); | |
bdeceadb KM |
481 | return (GOOD); |
482 | } | |
483 | return (linkit(lnkbuf, name, SYMLINK)); | |
f78e116c KM |
484 | |
485 | case IFCHR: | |
486 | case IFBLK: | |
487 | vprintf(stdout, "extract special file %s\n", name); | |
414c4f09 KM |
488 | if (Nflag) { |
489 | skipfile(); | |
490 | return (GOOD); | |
491 | } | |
f78e116c | 492 | if (mknod(name, mode, (int)curfile.dip->di_rdev) < 0) { |
e9e7ecc4 KM |
493 | fprintf(stderr, "%s: ", name); |
494 | (void) fflush(stderr); | |
495 | perror("cannot create special file"); | |
f78e116c KM |
496 | skipfile(); |
497 | return (FAIL); | |
498 | } | |
768eb687 KM |
499 | (void) chown(name, curfile.dip->di_uid, curfile.dip->di_gid); |
500 | (void) chmod(name, mode); | |
f78e116c | 501 | skipfile(); |
165b1daf | 502 | utimes(name, timep); |
f78e116c KM |
503 | return (GOOD); |
504 | ||
505 | case IFREG: | |
506 | vprintf(stdout, "extract file %s\n", name); | |
414c4f09 KM |
507 | if (Nflag) { |
508 | skipfile(); | |
509 | return (GOOD); | |
510 | } | |
15aeb519 | 511 | if ((ofile = creat(name, 0666)) < 0) { |
e9e7ecc4 KM |
512 | fprintf(stderr, "%s: ", name); |
513 | (void) fflush(stderr); | |
514 | perror("cannot create file"); | |
f78e116c KM |
515 | skipfile(); |
516 | return (FAIL); | |
517 | } | |
768eb687 KM |
518 | (void) fchown(ofile, curfile.dip->di_uid, curfile.dip->di_gid); |
519 | (void) fchmod(ofile, mode); | |
f78e116c | 520 | getfile(xtrfile, xtrskip); |
768eb687 | 521 | (void) close(ofile); |
165b1daf | 522 | utimes(name, timep); |
f78e116c KM |
523 | return (GOOD); |
524 | } | |
525 | /* NOTREACHED */ | |
526 | } | |
527 | ||
e108d3a2 KM |
528 | /* |
529 | * skip over bit maps on the tape | |
530 | */ | |
531 | skipmaps() | |
532 | { | |
533 | ||
534 | while (checktype(&spcl, TS_CLRI) == GOOD || | |
535 | checktype(&spcl, TS_BITS) == GOOD) | |
536 | skipfile(); | |
537 | } | |
538 | ||
539 | /* | |
540 | * skip over a file on the tape | |
541 | */ | |
f78e116c KM |
542 | skipfile() |
543 | { | |
544 | extern int null(); | |
545 | ||
546 | curfile.action = SKIP; | |
547 | getfile(null, null); | |
548 | } | |
549 | ||
550 | /* | |
551 | * Do the file extraction, calling the supplied functions | |
552 | * with the blocks | |
553 | */ | |
554 | getfile(f1, f2) | |
555 | int (*f2)(), (*f1)(); | |
556 | { | |
557 | register int i; | |
558 | int curblk = 0; | |
dad5e0ef | 559 | long size = spcl.c_dinode.di_size; |
f78e116c KM |
560 | static char clearedbuf[MAXBSIZE]; |
561 | char buf[MAXBSIZE / TP_BSIZE][TP_BSIZE]; | |
4f8ea093 | 562 | char junk[TP_BSIZE]; |
f78e116c | 563 | |
2cb5dabb | 564 | if (checktype(&spcl, TS_END) == GOOD) |
f78e116c | 565 | panic("ran off end of tape\n"); |
e108d3a2 | 566 | if (ishead(&spcl) == FAIL) |
f78e116c | 567 | panic("not at beginning of a file\n"); |
e108d3a2 | 568 | if (!gettingfile && setjmp(restart) != 0) |
f78e116c KM |
569 | return; |
570 | gettingfile++; | |
571 | loop: | |
572 | for (i = 0; i < spcl.c_count; i++) { | |
573 | if (spcl.c_addr[i]) { | |
574 | readtape(&buf[curblk++][0]); | |
575 | if (curblk == fssize / TP_BSIZE) { | |
576 | (*f1)(buf, size > TP_BSIZE ? | |
577 | (long) (fssize) : | |
578 | (curblk - 1) * TP_BSIZE + size); | |
579 | curblk = 0; | |
580 | } | |
581 | } else { | |
582 | if (curblk > 0) { | |
583 | (*f1)(buf, size > TP_BSIZE ? | |
584 | (long) (curblk * TP_BSIZE) : | |
585 | (curblk - 1) * TP_BSIZE + size); | |
586 | curblk = 0; | |
587 | } | |
588 | (*f2)(clearedbuf, size > TP_BSIZE ? | |
589 | (long) TP_BSIZE : size); | |
590 | } | |
4f8ea093 KM |
591 | if ((size -= TP_BSIZE) <= 0) { |
592 | for (i++; i < spcl.c_count; i++) | |
593 | if (spcl.c_addr[i]) | |
594 | readtape(junk); | |
9f13f26d | 595 | break; |
4f8ea093 | 596 | } |
f78e116c | 597 | } |
5c5f44c7 | 598 | if (readhdr(&spcl) == GOOD && size > 0) { |
9f13f26d KM |
599 | if (checktype(&spcl, TS_ADDR) == GOOD) |
600 | goto loop; | |
768eb687 | 601 | dprintf(stdout, "Missing address (header) block for %s\n", |
f78e116c | 602 | curfile.name); |
f78e116c | 603 | } |
9f13f26d | 604 | if (curblk > 0) |
f78e116c | 605 | (*f1)(buf, (curblk * TP_BSIZE) + size); |
b32320ae | 606 | findinode(&spcl); |
f78e116c KM |
607 | gettingfile = 0; |
608 | } | |
609 | ||
610 | /* | |
611 | * The next routines are called during file extraction to | |
612 | * put the data into the right form and place. | |
613 | */ | |
614 | xtrfile(buf, size) | |
615 | char *buf; | |
616 | long size; | |
617 | { | |
618 | ||
414c4f09 KM |
619 | if (Nflag) |
620 | return; | |
f78e116c KM |
621 | if (write(ofile, buf, (int) size) == -1) { |
622 | fprintf(stderr, "write error extracting inode %d, name %s\n", | |
623 | curfile.ino, curfile.name); | |
624 | perror("write"); | |
625 | done(1); | |
626 | } | |
627 | } | |
628 | ||
629 | xtrskip(buf, size) | |
630 | char *buf; | |
631 | long size; | |
632 | { | |
633 | ||
634 | #ifdef lint | |
635 | buf = buf; | |
636 | #endif | |
637 | if (lseek(ofile, size, 1) == (long)-1) { | |
638 | fprintf(stderr, "seek error extracting inode %d, name %s\n", | |
639 | curfile.ino, curfile.name); | |
640 | perror("lseek"); | |
641 | done(1); | |
642 | } | |
643 | } | |
644 | ||
645 | xtrlnkfile(buf, size) | |
646 | char *buf; | |
647 | long size; | |
648 | { | |
649 | ||
650 | pathlen += size; | |
651 | if (pathlen > MAXPATHLEN) { | |
652 | fprintf(stderr, "symbolic link name: %s->%s%s; too long %d\n", | |
653 | curfile.name, lnkbuf, buf, pathlen); | |
654 | done(1); | |
655 | } | |
538cb7bb | 656 | (void) strcat(lnkbuf, buf); |
f78e116c KM |
657 | } |
658 | ||
659 | xtrlnkskip(buf, size) | |
660 | char *buf; | |
661 | long size; | |
662 | { | |
663 | ||
664 | #ifdef lint | |
665 | buf = buf, size = size; | |
666 | #endif | |
667 | fprintf(stderr, "unallocated block in symbolic link %s\n", | |
668 | curfile.name); | |
669 | done(1); | |
670 | } | |
671 | ||
672 | xtrmap(buf, size) | |
673 | char *buf; | |
674 | long size; | |
675 | { | |
676 | ||
677 | bcopy(buf, map, size); | |
cf6db0ab | 678 | map += size; |
f78e116c KM |
679 | } |
680 | ||
681 | xtrmapskip(buf, size) | |
682 | char *buf; | |
683 | long size; | |
684 | { | |
685 | ||
686 | #ifdef lint | |
687 | buf = buf; | |
f78e116c KM |
688 | #endif |
689 | panic("hole in map\n"); | |
cf6db0ab | 690 | map += size; |
f78e116c KM |
691 | } |
692 | ||
693 | null() {;} | |
694 | ||
695 | /* | |
696 | * Do the tape i/o, dealing with volume changes | |
697 | * etc.. | |
698 | */ | |
699 | readtape(b) | |
700 | char *b; | |
701 | { | |
702 | register long i; | |
7851e15d KM |
703 | long rd, newvol; |
704 | int cnt; | |
2532f4a9 | 705 | int seek_failed; |
f78e116c | 706 | |
c8fb0747 | 707 | if (bct < numtrec) { |
b97e998a KM |
708 | bcopy(&tbf[(bct++*TP_BSIZE)], b, (long)TP_BSIZE); |
709 | blksread++; | |
3b29a62c | 710 | tpblksread++; |
b97e998a KM |
711 | return; |
712 | } | |
713 | for (i = 0; i < ntrec; i++) | |
714 | ((struct s_spcl *)&tbf[i*TP_BSIZE])->c_magic = 0; | |
c8fb0747 KM |
715 | if (numtrec == 0) |
716 | numtrec = ntrec; | |
2532f4a9 | 717 | cnt = ntrec * TP_BSIZE; |
b97e998a KM |
718 | rd = 0; |
719 | getmore: | |
e9e7ecc4 | 720 | #ifdef RRESTORE |
2532f4a9 KM |
721 | if (host) |
722 | i = rmtread(&tbf[rd], cnt); | |
723 | else | |
f78e116c | 724 | #endif |
2532f4a9 | 725 | i = read(mt, &tbf[rd], cnt); |
c8fb0747 KM |
726 | /* |
727 | * Check for mid-tape short read error. | |
2532f4a9 | 728 | * If found, skip rest of buffer and start with the next. |
c8fb0747 | 729 | */ |
2532f4a9 KM |
730 | if (!pipein && numtrec < ntrec && i > 0) { |
731 | dprintf(stdout, "mid-media short read error.\n"); | |
c8fb0747 | 732 | numtrec = ntrec; |
c8fb0747 KM |
733 | } |
734 | /* | |
735 | * Handle partial block read. | |
736 | */ | |
4f57cc9f KM |
737 | if (pipein && i == 0 && rd > 0) |
738 | i = rd; | |
739 | else if (i > 0 && i != ntrec * TP_BSIZE) { | |
b97e998a | 740 | if (pipein) { |
74025ab9 KM |
741 | rd += i; |
742 | cnt -= i; | |
743 | if (cnt > 0) | |
744 | goto getmore; | |
745 | i = rd; | |
b97e998a | 746 | } else { |
2532f4a9 KM |
747 | /* |
748 | * Short read. Process the blocks read. | |
749 | */ | |
b97e998a | 750 | if (i % TP_BSIZE != 0) |
2532f4a9 KM |
751 | vprintf(stdout, |
752 | "partial block read: %d should be %d\n", | |
753 | i, ntrec * TP_BSIZE); | |
c8fb0747 | 754 | numtrec = i / TP_BSIZE; |
74025ab9 | 755 | } |
b97e998a | 756 | } |
c8fb0747 KM |
757 | /* |
758 | * Handle read error. | |
759 | */ | |
b97e998a KM |
760 | if (i < 0) { |
761 | fprintf(stderr, "Tape read error while "); | |
762 | switch (curfile.action) { | |
763 | default: | |
764 | fprintf(stderr, "trying to set up tape\n"); | |
765 | break; | |
766 | case UNKNOWN: | |
bf7abb47 | 767 | fprintf(stderr, "trying to resynchronize\n"); |
b97e998a KM |
768 | break; |
769 | case USING: | |
770 | fprintf(stderr, "restoring %s\n", curfile.name); | |
771 | break; | |
772 | case SKIP: | |
773 | fprintf(stderr, "skipping over inode %d\n", | |
774 | curfile.ino); | |
775 | break; | |
776 | } | |
777 | if (!yflag && !reply("continue")) | |
778 | done(1); | |
779 | i = ntrec*TP_BSIZE; | |
780 | bzero(tbf, i); | |
e9e7ecc4 | 781 | #ifdef RRESTORE |
2532f4a9 KM |
782 | if (host) |
783 | seek_failed = (rmtseek(i, 1) < 0); | |
784 | else | |
f78e116c | 785 | #endif |
2532f4a9 KM |
786 | seek_failed = (lseek(mt, i, 1) == (long)-1); |
787 | ||
788 | if (seek_failed) { | |
b97e998a KM |
789 | perror("continuation failed"); |
790 | done(1); | |
f78e116c | 791 | } |
b97e998a | 792 | } |
c8fb0747 KM |
793 | /* |
794 | * Handle end of tape. | |
795 | */ | |
b97e998a | 796 | if (i == 0) { |
2532f4a9 | 797 | vprintf(stdout, "End-of-tape encountered\n"); |
ad073f89 KM |
798 | if (!pipein) { |
799 | newvol = volno + 1; | |
800 | volno = 0; | |
c8fb0747 | 801 | numtrec = 0; |
ad073f89 KM |
802 | getvol(newvol); |
803 | readtape(b); | |
f78e116c KM |
804 | return; |
805 | } | |
ad073f89 KM |
806 | if (rd % TP_BSIZE != 0) |
807 | panic("partial block read: %d should be %d\n", | |
808 | rd, ntrec * TP_BSIZE); | |
2657795e | 809 | terminateinput(); |
ad073f89 | 810 | bcopy((char *)&endoftapemark, &tbf[rd], (long)TP_BSIZE); |
f78e116c | 811 | } |
c8fb0747 | 812 | bct = 0; |
f78e116c | 813 | bcopy(&tbf[(bct++*TP_BSIZE)], b, (long)TP_BSIZE); |
2cb5dabb | 814 | blksread++; |
3b29a62c | 815 | tpblksread++; |
f78e116c KM |
816 | } |
817 | ||
b97e998a KM |
818 | findtapeblksize() |
819 | { | |
820 | register long i; | |
821 | ||
822 | for (i = 0; i < ntrec; i++) | |
823 | ((struct s_spcl *)&tbf[i * TP_BSIZE])->c_magic = 0; | |
824 | bct = 0; | |
825 | #ifdef RRESTORE | |
2532f4a9 KM |
826 | if (host) |
827 | i = rmtread(tbf, ntrec * TP_BSIZE); | |
828 | else | |
b97e998a | 829 | #endif |
2532f4a9 KM |
830 | i = read(mt, tbf, ntrec * TP_BSIZE); |
831 | ||
b97e998a KM |
832 | if (i <= 0) { |
833 | perror("Tape read error"); | |
834 | done(1); | |
835 | } | |
836 | if (i % TP_BSIZE != 0) { | |
837 | fprintf(stderr, "Tape block size (%d) %s (%d)\n", | |
838 | i, "is not a multiple of dump block size", TP_BSIZE); | |
839 | done(1); | |
840 | } | |
841 | ntrec = i / TP_BSIZE; | |
c8fb0747 | 842 | numtrec = ntrec; |
b97e998a KM |
843 | vprintf(stdout, "Tape block size is %d\n", ntrec); |
844 | } | |
845 | ||
f78e116c KM |
846 | flsht() |
847 | { | |
848 | ||
19230a53 | 849 | bct = ntrec+1; |
f78e116c KM |
850 | } |
851 | ||
f78e116c KM |
852 | closemt() |
853 | { | |
854 | if (mt < 0) | |
855 | return; | |
e9e7ecc4 | 856 | #ifdef RRESTORE |
2532f4a9 KM |
857 | if (host) |
858 | rmtclose(); | |
859 | else | |
f78e116c | 860 | #endif |
2532f4a9 | 861 | (void) close(mt); |
f78e116c KM |
862 | } |
863 | ||
864 | checkvol(b, t) | |
865 | struct s_spcl *b; | |
866 | long t; | |
867 | { | |
868 | ||
2cb5dabb KM |
869 | if (b->c_volume != t) |
870 | return(FAIL); | |
871 | return(GOOD); | |
f78e116c KM |
872 | } |
873 | ||
874 | readhdr(b) | |
875 | struct s_spcl *b; | |
876 | { | |
877 | ||
5c5f44c7 | 878 | if (gethead(b) == FAIL) { |
768eb687 | 879 | dprintf(stdout, "readhdr fails at %d blocks\n", blksread); |
2cb5dabb | 880 | return(FAIL); |
5c5f44c7 | 881 | } |
2cb5dabb | 882 | return(GOOD); |
f78e116c KM |
883 | } |
884 | ||
885 | /* | |
886 | * read the tape into buf, then return whether or | |
887 | * or not it is a header block. | |
888 | */ | |
889 | gethead(buf) | |
890 | struct s_spcl *buf; | |
891 | { | |
eb317d51 | 892 | long i; |
6e5750fa KM |
893 | union { |
894 | quad_t qval; | |
895 | long val[2]; | |
896 | } qcvt; | |
f78e116c KM |
897 | union u_ospcl { |
898 | char dummy[TP_BSIZE]; | |
899 | struct s_ospcl { | |
2cb5dabb KM |
900 | long c_type; |
901 | long c_date; | |
902 | long c_ddate; | |
903 | long c_volume; | |
904 | long c_tapea; | |
cf6db0ab | 905 | u_short c_inumber; |
2cb5dabb KM |
906 | long c_magic; |
907 | long c_checksum; | |
f78e116c KM |
908 | struct odinode { |
909 | unsigned short odi_mode; | |
cf6db0ab KM |
910 | u_short odi_nlink; |
911 | u_short odi_uid; | |
912 | u_short odi_gid; | |
2cb5dabb KM |
913 | long odi_size; |
914 | long odi_rdev; | |
f78e116c | 915 | char odi_addr[36]; |
2cb5dabb KM |
916 | long odi_atime; |
917 | long odi_mtime; | |
918 | long odi_ctime; | |
f78e116c | 919 | } c_dinode; |
2cb5dabb KM |
920 | long c_count; |
921 | char c_addr[256]; | |
f78e116c KM |
922 | } s_ospcl; |
923 | } u_ospcl; | |
924 | ||
925 | if (!cvtflag) { | |
926 | readtape((char *)buf); | |
b4c41341 KS |
927 | if (buf->c_magic != NFS_MAGIC) { |
928 | if (swabl(buf->c_magic) != NFS_MAGIC) | |
929 | return (FAIL); | |
930 | if (!Bcvt) { | |
931 | vprintf(stdout, "Note: Doing Byte swapping\n"); | |
932 | Bcvt = 1; | |
933 | } | |
934 | } | |
935 | if (checksum((int *)buf) == FAIL) | |
936 | return (FAIL); | |
937 | if (Bcvt) | |
938 | swabst("8l4s31l", (char *)buf); | |
5c5f44c7 | 939 | goto good; |
f78e116c KM |
940 | } |
941 | readtape((char *)(&u_ospcl.s_ospcl)); | |
942 | bzero((char *)buf, (long)TP_BSIZE); | |
943 | buf->c_type = u_ospcl.s_ospcl.c_type; | |
944 | buf->c_date = u_ospcl.s_ospcl.c_date; | |
945 | buf->c_ddate = u_ospcl.s_ospcl.c_ddate; | |
946 | buf->c_volume = u_ospcl.s_ospcl.c_volume; | |
947 | buf->c_tapea = u_ospcl.s_ospcl.c_tapea; | |
948 | buf->c_inumber = u_ospcl.s_ospcl.c_inumber; | |
949 | buf->c_checksum = u_ospcl.s_ospcl.c_checksum; | |
950 | buf->c_magic = u_ospcl.s_ospcl.c_magic; | |
951 | buf->c_dinode.di_mode = u_ospcl.s_ospcl.c_dinode.odi_mode; | |
952 | buf->c_dinode.di_nlink = u_ospcl.s_ospcl.c_dinode.odi_nlink; | |
953 | buf->c_dinode.di_uid = u_ospcl.s_ospcl.c_dinode.odi_uid; | |
954 | buf->c_dinode.di_gid = u_ospcl.s_ospcl.c_dinode.odi_gid; | |
955 | buf->c_dinode.di_size = u_ospcl.s_ospcl.c_dinode.odi_size; | |
956 | buf->c_dinode.di_rdev = u_ospcl.s_ospcl.c_dinode.odi_rdev; | |
4f57cc9f KM |
957 | buf->c_dinode.di_atime.ts_sec = u_ospcl.s_ospcl.c_dinode.odi_atime; |
958 | buf->c_dinode.di_mtime.ts_sec = u_ospcl.s_ospcl.c_dinode.odi_mtime; | |
959 | buf->c_dinode.di_ctime.ts_sec = u_ospcl.s_ospcl.c_dinode.odi_ctime; | |
f78e116c | 960 | buf->c_count = u_ospcl.s_ospcl.c_count; |
2cb5dabb | 961 | bcopy(u_ospcl.s_ospcl.c_addr, buf->c_addr, (long)256); |
f78e116c | 962 | if (u_ospcl.s_ospcl.c_magic != OFS_MAGIC || |
5c5f44c7 | 963 | checksum((int *)(&u_ospcl.s_ospcl)) == FAIL) |
2cb5dabb | 964 | return(FAIL); |
f78e116c | 965 | buf->c_magic = NFS_MAGIC; |
5c5f44c7 KM |
966 | |
967 | good: | |
15822e16 | 968 | if ((buf->c_dinode.di_size == 0 || buf->c_dinode.di_size > 0xfffffff) && |
025e61b9 | 969 | (buf->c_dinode.di_mode & IFMT) == IFDIR && Qcvt == 0) { |
6e5750fa KM |
970 | qcvt.qval = buf->c_dinode.di_size; |
971 | if (qcvt.val[0] || qcvt.val[1]) { | |
b4c41341 KS |
972 | printf("Note: Doing Quad swapping\n"); |
973 | Qcvt = 1; | |
974 | } | |
975 | } | |
976 | if (Qcvt) { | |
6e5750fa KM |
977 | qcvt.qval = buf->c_dinode.di_size; |
978 | i = qcvt.val[1]; | |
979 | qcvt.val[1] = qcvt.val[0]; | |
980 | qcvt.val[0] = i; | |
b4c41341 | 981 | } |
2532f4a9 | 982 | |
5c5f44c7 KM |
983 | switch (buf->c_type) { |
984 | ||
985 | case TS_CLRI: | |
986 | case TS_BITS: | |
987 | /* | |
988 | * Have to patch up missing information in bit map headers | |
989 | */ | |
990 | buf->c_inumber = 0; | |
991 | buf->c_dinode.di_size = buf->c_count * TP_BSIZE; | |
992 | for (i = 0; i < buf->c_count; i++) | |
993 | buf->c_addr[i]++; | |
994 | break; | |
995 | ||
996 | case TS_TAPE: | |
dad5e0ef KM |
997 | if ((buf->c_flags & DR_NEWINODEFMT) == 0) |
998 | oldinofmt = 1; | |
999 | /* fall through */ | |
5c5f44c7 KM |
1000 | case TS_END: |
1001 | buf->c_inumber = 0; | |
1002 | break; | |
1003 | ||
1004 | case TS_INODE: | |
1005 | case TS_ADDR: | |
1006 | break; | |
1007 | ||
1008 | default: | |
1009 | panic("gethead: unknown inode type %d\n", buf->c_type); | |
1010 | break; | |
1011 | } | |
dad5e0ef KM |
1012 | /* |
1013 | * If we are restoring a filesystem with old format inodes, | |
1014 | * copy the uid/gid to the new location. | |
1015 | */ | |
1016 | if (oldinofmt) { | |
1017 | buf->c_dinode.di_uid = buf->c_dinode.di_ouid; | |
1018 | buf->c_dinode.di_gid = buf->c_dinode.di_ogid; | |
1019 | } | |
2cb5dabb KM |
1020 | if (dflag) |
1021 | accthdr(buf); | |
1022 | return(GOOD); | |
1023 | } | |
1024 | ||
1025 | /* | |
1026 | * Check that a header is where it belongs and predict the next header | |
1027 | */ | |
1028 | accthdr(header) | |
1029 | struct s_spcl *header; | |
1030 | { | |
7851e15d | 1031 | static ino_t previno = 0x7fffffff; |
2cb5dabb KM |
1032 | static int prevtype; |
1033 | static long predict; | |
1034 | long blks, i; | |
1035 | ||
8d412b7c | 1036 | if (header->c_type == TS_TAPE) { |
3b29a62c KM |
1037 | fprintf(stderr, "Volume header"); |
1038 | if (header->c_firstrec) | |
1039 | fprintf(stderr, " begins with record %d", | |
1040 | header->c_firstrec); | |
1041 | fprintf(stderr, "\n"); | |
b8f4e820 | 1042 | previno = 0x7fffffff; |
5c5f44c7 KM |
1043 | return; |
1044 | } | |
7851e15d | 1045 | if (previno == 0x7fffffff) |
2cb5dabb KM |
1046 | goto newcalc; |
1047 | switch (prevtype) { | |
2cb5dabb | 1048 | case TS_BITS: |
5c5f44c7 | 1049 | fprintf(stderr, "Dump mask header"); |
2cb5dabb KM |
1050 | break; |
1051 | case TS_CLRI: | |
5c5f44c7 | 1052 | fprintf(stderr, "Remove mask header"); |
2cb5dabb KM |
1053 | break; |
1054 | case TS_INODE: | |
5c5f44c7 | 1055 | fprintf(stderr, "File header, ino %d", previno); |
2cb5dabb KM |
1056 | break; |
1057 | case TS_ADDR: | |
5c5f44c7 | 1058 | fprintf(stderr, "File continuation header, ino %d", previno); |
2cb5dabb KM |
1059 | break; |
1060 | case TS_END: | |
5c5f44c7 | 1061 | fprintf(stderr, "End of tape header"); |
2cb5dabb KM |
1062 | break; |
1063 | } | |
2cb5dabb KM |
1064 | if (predict != blksread - 1) |
1065 | fprintf(stderr, "; predicted %d blocks, got %d blocks", | |
1066 | predict, blksread - 1); | |
1067 | fprintf(stderr, "\n"); | |
1068 | newcalc: | |
1069 | blks = 0; | |
5c5f44c7 | 1070 | if (header->c_type != TS_END) |
2cb5dabb KM |
1071 | for (i = 0; i < header->c_count; i++) |
1072 | if (header->c_addr[i] != 0) | |
1073 | blks++; | |
1074 | predict = blks; | |
1075 | blksread = 0; | |
1076 | prevtype = header->c_type; | |
1077 | previno = header->c_inumber; | |
f78e116c KM |
1078 | } |
1079 | ||
1080 | /* | |
1081 | * Find an inode header. | |
1082 | * Complain if had to skip, and complain is set. | |
1083 | */ | |
b32320ae | 1084 | findinode(header) |
f78e116c | 1085 | struct s_spcl *header; |
f78e116c | 1086 | { |
2cb5dabb | 1087 | static long skipcnt = 0; |
b8f4e820 KM |
1088 | long i; |
1089 | char buf[TP_BSIZE]; | |
f78e116c KM |
1090 | |
1091 | curfile.name = "<name unknown>"; | |
1092 | curfile.action = UNKNOWN; | |
1093 | curfile.dip = (struct dinode *)NIL; | |
1094 | curfile.ino = 0; | |
2cb5dabb KM |
1095 | if (ishead(header) == FAIL) { |
1096 | skipcnt++; | |
7702e9a8 | 1097 | while (gethead(header) == FAIL || header->c_date != dumpdate) |
f78e116c | 1098 | skipcnt++; |
2cb5dabb | 1099 | } |
f78e116c | 1100 | for (;;) { |
b8f4e820 KM |
1101 | if (checktype(header, TS_ADDR) == GOOD) { |
1102 | /* | |
1103 | * Skip up to the beginning of the next record | |
1104 | */ | |
1105 | for (i = 0; i < header->c_count; i++) | |
1106 | if (header->c_addr[i]) | |
1107 | readtape(buf); | |
1108 | (void) gethead(header); | |
1109 | continue; | |
1110 | } | |
2cb5dabb | 1111 | if (checktype(header, TS_INODE) == GOOD) { |
f78e116c KM |
1112 | curfile.dip = &header->c_dinode; |
1113 | curfile.ino = header->c_inumber; | |
1114 | break; | |
1115 | } | |
2cb5dabb | 1116 | if (checktype(header, TS_END) == GOOD) { |
f78e116c KM |
1117 | curfile.ino = maxino; |
1118 | break; | |
1119 | } | |
2cb5dabb | 1120 | if (checktype(header, TS_CLRI) == GOOD) { |
f78e116c | 1121 | curfile.name = "<file removal list>"; |
e108d3a2 | 1122 | break; |
f78e116c | 1123 | } |
2cb5dabb | 1124 | if (checktype(header, TS_BITS) == GOOD) { |
f78e116c | 1125 | curfile.name = "<file dump list>"; |
e108d3a2 | 1126 | break; |
f78e116c | 1127 | } |
2cb5dabb | 1128 | while (gethead(header) == FAIL) |
f78e116c KM |
1129 | skipcnt++; |
1130 | } | |
b32320ae | 1131 | if (skipcnt > 0) |
dd1900f1 | 1132 | fprintf(stderr, "resync restore, skipped %d blocks\n", skipcnt); |
f78e116c KM |
1133 | skipcnt = 0; |
1134 | } | |
1135 | ||
1136 | /* | |
1137 | * return whether or not the buffer contains a header block | |
1138 | */ | |
1139 | ishead(buf) | |
1140 | struct s_spcl *buf; | |
1141 | { | |
1142 | ||
1143 | if (buf->c_magic != NFS_MAGIC) | |
2cb5dabb KM |
1144 | return(FAIL); |
1145 | return(GOOD); | |
f78e116c KM |
1146 | } |
1147 | ||
1148 | checktype(b, t) | |
1149 | struct s_spcl *b; | |
1150 | int t; | |
1151 | { | |
1152 | ||
2cb5dabb KM |
1153 | if (b->c_type != t) |
1154 | return(FAIL); | |
1155 | return(GOOD); | |
f78e116c KM |
1156 | } |
1157 | ||
1158 | checksum(b) | |
1159 | register int *b; | |
1160 | { | |
1161 | register int i, j; | |
1162 | ||
1163 | j = sizeof(union u_spcl) / sizeof(int); | |
1164 | i = 0; | |
b4c41341 KS |
1165 | if(!Bcvt) { |
1166 | do | |
1167 | i += *b++; | |
1168 | while (--j); | |
1169 | } else { | |
1170 | /* What happens if we want to read restore tapes | |
1171 | for a 16bit int machine??? */ | |
1172 | do | |
1173 | i += swabl(*b++); | |
1174 | while (--j); | |
1175 | } | |
1176 | ||
f78e116c KM |
1177 | if (i != CHECKSUM) { |
1178 | fprintf(stderr, "Checksum error %o, inode %d file %s\n", i, | |
1179 | curfile.ino, curfile.name); | |
2cb5dabb | 1180 | return(FAIL); |
f78e116c | 1181 | } |
2cb5dabb | 1182 | return(GOOD); |
f78e116c KM |
1183 | } |
1184 | ||
e9e7ecc4 | 1185 | #ifdef RRESTORE |
74025ab9 | 1186 | /* VARARGS1 */ |
f78e116c KM |
1187 | msg(cp, a1, a2, a3) |
1188 | char *cp; | |
1189 | { | |
1190 | ||
1191 | fprintf(stderr, cp, a1, a2, a3); | |
1192 | } | |
2532f4a9 | 1193 | #endif /* RRESTORE */ |
b4c41341 | 1194 | |
025e61b9 KM |
1195 | u_char * |
1196 | swabshort(sp, n) | |
1197 | register u_char *sp; | |
1198 | register int n; | |
1199 | { | |
1200 | char c; | |
1201 | ||
1202 | while (--n >= 0) { | |
1203 | c = sp[0]; sp[0] = sp[1]; sp[1] = c; | |
1204 | sp += 2; | |
1205 | } | |
1206 | return (sp); | |
1207 | } | |
1208 | ||
1209 | u_char * | |
1210 | swablong(sp, n) | |
1211 | register u_char *sp; | |
1212 | register int n; | |
1213 | { | |
1214 | char c; | |
1215 | ||
1216 | while (--n >= 0) { | |
1217 | c = sp[0]; sp[0] = sp[3]; sp[3] = c; | |
1218 | c = sp[2]; sp[2] = sp[1]; sp[1] = c; | |
1219 | sp += 4; | |
1220 | } | |
1221 | return (sp); | |
1222 | } | |
1223 | ||
b4c41341 | 1224 | swabst(cp, sp) |
025e61b9 | 1225 | register u_char *cp, *sp; |
b4c41341 KS |
1226 | { |
1227 | int n = 0; | |
025e61b9 KM |
1228 | u_char c; |
1229 | ||
1230 | while (*cp) { | |
b4c41341 KS |
1231 | switch (*cp) { |
1232 | case '0': case '1': case '2': case '3': case '4': | |
1233 | case '5': case '6': case '7': case '8': case '9': | |
1234 | n = (n * 10) + (*cp++ - '0'); | |
1235 | continue; | |
1236 | ||
1237 | case 's': case 'w': case 'h': | |
025e61b9 KM |
1238 | if (n == 0) |
1239 | n = 1; | |
1240 | sp = swabshort(sp, n); | |
b4c41341 KS |
1241 | break; |
1242 | ||
1243 | case 'l': | |
025e61b9 KM |
1244 | if (n == 0) |
1245 | n = 1; | |
1246 | sp = swablong(sp, n); | |
1247 | break; | |
1248 | ||
1249 | default: /* Any other character, like 'b' counts as byte. */ | |
1250 | if (n == 0) | |
1251 | n = 1; | |
1252 | sp += n; | |
1253 | break; | |
b4c41341 | 1254 | } |
025e61b9 KM |
1255 | cp++; |
1256 | n = 0; | |
b4c41341 KS |
1257 | } |
1258 | } | |
025e61b9 KM |
1259 | |
1260 | u_long | |
1261 | swabl(x) | |
1262 | u_long x; | |
1263 | { | |
1264 | swabst("l", (char *)&x); | |
1265 | return (x); | |
1266 | } | |
7f327977 KM |
1267 | |
1268 | #ifdef sunos | |
1269 | char * | |
1270 | strerror(errnum) | |
1271 | int errnum; | |
1272 | { | |
1273 | extern int sys_nerr; | |
1274 | extern char *sys_errlist[]; | |
1275 | ||
1276 | if (errnum < sys_nerr) { | |
1277 | return(sys_errlist[errnum]); | |
1278 | } else { | |
1279 | return("bogus errno in strerror"); | |
1280 | } | |
1281 | } | |
1282 | #endif |