Commit | Line | Data |
---|---|---|
8c5eec2f | 1 | /* |
e7a042ee KB |
2 | * Copyright (c) 1983, 1993 |
3 | * The Regents of the University of California. All rights reserved. | |
b42768a6 | 4 | * |
70ab3c27 | 5 | * %sccs.include.redist.c% |
8c5eec2f | 6 | */ |
f78e116c | 7 | |
8c5eec2f | 8 | #ifndef lint |
e7a042ee | 9 | static char sccsid[] = "@(#)tape.c 8.1 (Berkeley) %G%"; |
b42768a6 | 10 | #endif /* not lint */ |
ebd1f727 | 11 | |
451eb9a1 KB |
12 | #include <sys/param.h> |
13 | #include <sys/file.h> | |
f78e116c KM |
14 | #include <sys/ioctl.h> |
15 | #include <sys/mtio.h> | |
a7b24fe9 | 16 | #include <sys/stat.h> |
451eb9a1 KB |
17 | |
18 | #include <ufs/ufs/dinode.h> | |
19 | #include <protocols/dumprestore.h> | |
20 | ||
21 | #include <errno.h> | |
22 | #include <setjmp.h> | |
23 | #include <stdio.h> | |
24 | #include <stdlib.h> | |
25 | #include <string.h> | |
26 | #include <unistd.h> | |
27 | ||
28 | #include "restore.h" | |
29 | #include "extern.h" | |
7abf8d65 | 30 | #include "pathnames.h" |
2cb5dabb | 31 | |
bdeceadb | 32 | static long fssize = MAXBSIZE; |
2cb5dabb KM |
33 | static int mt = -1; |
34 | static int pipein = 0; | |
7eb08dfe | 35 | static char magtape[BUFSIZ]; |
e551fdb2 | 36 | static int blkcnt; |
c8fb0747 | 37 | static int numtrec; |
e551fdb2 | 38 | static char *tapebuf; |
2cb5dabb | 39 | static union u_spcl endoftapemark; |
2532f4a9 | 40 | static long blksread; /* blocks read since last header */ |
3b29a62c | 41 | static long tpblksread = 0; /* TP_BSIZE blocks read */ |
170639fd | 42 | static long tapesread; |
2cb5dabb KM |
43 | static jmp_buf restart; |
44 | static int gettingfile = 0; /* restart has a valid frame */ | |
2532f4a9 | 45 | static char *host = NULL; |
2cb5dabb KM |
46 | |
47 | static int ofile; | |
48 | static char *map; | |
49 | static char lnkbuf[MAXPATHLEN + 1]; | |
50 | static int pathlen; | |
f78e116c | 51 | |
dad5e0ef | 52 | int oldinofmt; /* old inode format conversion required */ |
b4c41341 KS |
53 | int Bcvt; /* Swap Bytes (for CCI or sun) */ |
54 | static int Qcvt; /* Swap quads (for sun) */ | |
2532f4a9 | 55 | |
e551fdb2 KM |
56 | #define FLUSHTAPEBUF() blkcnt = ntrec + 1 |
57 | ||
451eb9a1 KB |
58 | static void accthdr __P((struct s_spcl *)); |
59 | static int checksum __P((int *)); | |
60 | static void findinode __P((struct s_spcl *)); | |
61 | static void findtapeblksize __P((void)); | |
62 | static int gethead __P((struct s_spcl *)); | |
63 | static void readtape __P((char *)); | |
64 | static void setdumpnum __P((void)); | |
65 | static u_long swabl __P((u_long)); | |
66 | static u_char *swablong __P((u_char *, int)); | |
67 | static u_char *swabshort __P((u_char *, int)); | |
68 | static void terminateinput __P((void)); | |
69 | static void xtrfile __P((char *, long)); | |
70 | static void xtrlnkfile __P((char *, long)); | |
71 | static void xtrlnkskip __P((char *, long)); | |
72 | static void xtrmap __P((char *, long)); | |
73 | static void xtrmapskip __P((char *, long)); | |
74 | static void xtrskip __P((char *, long)); | |
75 | ||
f78e116c KM |
76 | /* |
77 | * Set up an input source | |
78 | */ | |
451eb9a1 | 79 | void |
f78e116c KM |
80 | setinput(source) |
81 | char *source; | |
82 | { | |
e551fdb2 | 83 | FLUSHTAPEBUF(); |
b97e998a KM |
84 | if (bflag) |
85 | newtapebuf(ntrec); | |
86 | else | |
87 | newtapebuf(NTREC > HIGHDENSITYTREC ? NTREC : HIGHDENSITYTREC); | |
9c695c61 | 88 | terminal = stdin; |
2532f4a9 | 89 | |
e9e7ecc4 | 90 | #ifdef RRESTORE |
2532f4a9 KM |
91 | if (index(source, ':')) { |
92 | host = source; | |
93 | source = index(host, ':'); | |
94 | *source++ = '\0'; | |
95 | if (rmthost(host) == 0) | |
96 | done(1); | |
97 | } else | |
98 | #endif | |
9c695c61 | 99 | if (strcmp(source, "-") == 0) { |
b677c5d7 KM |
100 | /* |
101 | * Since input is coming from a pipe we must establish | |
102 | * our own connection to the terminal. | |
103 | */ | |
7abf8d65 | 104 | terminal = fopen(_PATH_TTY, "r"); |
b677c5d7 | 105 | if (terminal == NULL) { |
451eb9a1 KB |
106 | (void)fprintf(stderr, "cannot open %s: %s\n", |
107 | _PATH_TTY, strerror(errno)); | |
7abf8d65 | 108 | terminal = fopen(_PATH_DEVNULL, "r"); |
b8eb5f1f | 109 | if (terminal == NULL) { |
451eb9a1 KB |
110 | (void)fprintf(stderr, "cannot open %s: %s\n", |
111 | _PATH_DEVNULL, strerror(errno)); | |
b8eb5f1f KM |
112 | done(1); |
113 | } | |
b677c5d7 | 114 | } |
2cb5dabb | 115 | pipein++; |
2cb5dabb | 116 | } |
2532f4a9 | 117 | setuid(getuid()); /* no longer need or want root privileges */ |
7eb08dfe | 118 | (void) strcpy(magtape, source); |
f78e116c KM |
119 | } |
120 | ||
451eb9a1 | 121 | void |
b97e998a KM |
122 | newtapebuf(size) |
123 | long size; | |
124 | { | |
e551fdb2 | 125 | static tapebufsize = -1; |
b97e998a KM |
126 | |
127 | ntrec = size; | |
e551fdb2 | 128 | if (size <= tapebufsize) |
b97e998a | 129 | return; |
e551fdb2 KM |
130 | if (tapebuf != NULL) |
131 | free(tapebuf); | |
451eb9a1 | 132 | tapebuf = malloc(size * TP_BSIZE); |
e551fdb2 | 133 | if (tapebuf == NULL) { |
b97e998a KM |
134 | fprintf(stderr, "Cannot allocate space for tape buffer\n"); |
135 | done(1); | |
136 | } | |
e551fdb2 | 137 | tapebufsize = size; |
b97e998a KM |
138 | } |
139 | ||
f78e116c KM |
140 | /* |
141 | * Verify that the tape drive can be accessed and | |
142 | * that it actually is a dump tape. | |
143 | */ | |
451eb9a1 | 144 | void |
f78e116c KM |
145 | setup() |
146 | { | |
2cb5dabb | 147 | int i, j, *ip; |
f78e116c | 148 | struct stat stbuf; |
f78e116c KM |
149 | |
150 | vprintf(stdout, "Verify tape and initialize maps\n"); | |
e9e7ecc4 | 151 | #ifdef RRESTORE |
2532f4a9 | 152 | if (host) |
202d77b7 | 153 | mt = rmtopen(magtape, 0); |
2532f4a9 KM |
154 | else |
155 | #endif | |
2cb5dabb KM |
156 | if (pipein) |
157 | mt = 0; | |
2532f4a9 | 158 | else |
451eb9a1 | 159 | mt = open(magtape, O_RDONLY, 0); |
2532f4a9 | 160 | if (mt < 0) { |
451eb9a1 | 161 | fprintf(stderr, "%s: %s\n", magtape, strerror(errno)); |
f78e116c KM |
162 | done(1); |
163 | } | |
768eb687 KM |
164 | volno = 1; |
165 | setdumpnum(); | |
e551fdb2 | 166 | FLUSHTAPEBUF(); |
b97e998a KM |
167 | if (!pipein && !bflag) |
168 | findtapeblksize(); | |
5c5f44c7 | 169 | if (gethead(&spcl) == FAIL) { |
e551fdb2 | 170 | blkcnt--; /* push back this block */ |
2532f4a9 | 171 | blksread--; |
3b29a62c | 172 | tpblksread--; |
f78e116c | 173 | cvtflag++; |
5c5f44c7 | 174 | if (gethead(&spcl) == FAIL) { |
f78e116c KM |
175 | fprintf(stderr, "Tape is not a dump tape\n"); |
176 | done(1); | |
177 | } | |
178 | fprintf(stderr, "Converting to new file system format.\n"); | |
179 | } | |
2cb5dabb KM |
180 | if (pipein) { |
181 | endoftapemark.s_spcl.c_magic = cvtflag ? OFS_MAGIC : NFS_MAGIC; | |
182 | endoftapemark.s_spcl.c_type = TS_END; | |
183 | ip = (int *)&endoftapemark; | |
184 | j = sizeof(union u_spcl) / sizeof(int); | |
185 | i = 0; | |
186 | do | |
187 | i += *ip++; | |
188 | while (--j); | |
189 | endoftapemark.s_spcl.c_checksum = CHECKSUM - i; | |
190 | } | |
b32320ae KM |
191 | if (vflag || command == 't') |
192 | printdumpinfo(); | |
f78e116c | 193 | dumptime = spcl.c_ddate; |
2cb5dabb | 194 | dumpdate = spcl.c_date; |
f78e116c | 195 | if (stat(".", &stbuf) < 0) { |
451eb9a1 | 196 | fprintf(stderr, "cannot stat .: %s\n", strerror(errno)); |
f78e116c KM |
197 | done(1); |
198 | } | |
bdeceadb KM |
199 | if (stbuf.st_blksize > 0 && stbuf.st_blksize <= MAXBSIZE) |
200 | fssize = stbuf.st_blksize; | |
201 | if (((fssize - 1) & fssize) != 0) { | |
f78e116c KM |
202 | fprintf(stderr, "bad block size %d\n", fssize); |
203 | done(1); | |
204 | } | |
e551fdb2 | 205 | if (spcl.c_volume != 1) { |
f78e116c KM |
206 | fprintf(stderr, "Tape is not volume 1 of the dump\n"); |
207 | done(1); | |
208 | } | |
e551fdb2 KM |
209 | if (gethead(&spcl) == FAIL) { |
210 | dprintf(stdout, "header read failed at %d blocks\n", blksread); | |
2cb5dabb | 211 | panic("no header after volume mark!\n"); |
e551fdb2 | 212 | } |
b32320ae | 213 | findinode(&spcl); |
e551fdb2 | 214 | if (spcl.c_type != TS_CLRI) { |
f78e116c KM |
215 | fprintf(stderr, "Cannot find file removal list\n"); |
216 | done(1); | |
217 | } | |
2cb5dabb | 218 | maxino = (spcl.c_count * TP_BSIZE * NBBY) + 1; |
768eb687 | 219 | dprintf(stdout, "maxino = %d\n", maxino); |
7851e15d | 220 | map = calloc((unsigned)1, (unsigned)howmany(maxino, NBBY)); |
451eb9a1 | 221 | if (map == NULL) |
f78e116c | 222 | panic("no memory for file removal list\n"); |
cf6db0ab | 223 | clrimap = map; |
f78e116c KM |
224 | curfile.action = USING; |
225 | getfile(xtrmap, xtrmapskip); | |
e551fdb2 | 226 | if (spcl.c_type != TS_BITS) { |
f78e116c KM |
227 | fprintf(stderr, "Cannot find file dump list\n"); |
228 | done(1); | |
229 | } | |
7851e15d | 230 | map = calloc((unsigned)1, (unsigned)howmany(maxino, NBBY)); |
f78e116c KM |
231 | if (map == (char *)NULL) |
232 | panic("no memory for file dump list\n"); | |
cf6db0ab | 233 | dumpmap = map; |
f78e116c KM |
234 | curfile.action = USING; |
235 | getfile(xtrmap, xtrmapskip); | |
f78e116c KM |
236 | } |
237 | ||
170639fd KM |
238 | /* |
239 | * Prompt user to load a new dump volume. | |
240 | * "Nextvol" is the next suggested volume to use. | |
241 | * This suggested volume is enforced when doing full | |
242 | * or incremental restores, but can be overrridden by | |
243 | * the user when only extracting a subset of the files. | |
244 | */ | |
451eb9a1 | 245 | void |
f78e116c KM |
246 | getvol(nextvol) |
247 | long nextvol; | |
248 | { | |
3b29a62c | 249 | long newvol, savecnt, wantnext, i; |
f78e116c KM |
250 | union u_spcl tmpspcl; |
251 | # define tmpbuf tmpspcl.s_spcl | |
b32320ae | 252 | char buf[TP_BSIZE]; |
f78e116c | 253 | |
a162cc0b | 254 | if (nextvol == 1) { |
170639fd | 255 | tapesread = 0; |
a162cc0b KM |
256 | gettingfile = 0; |
257 | } | |
2cb5dabb | 258 | if (pipein) { |
e108d3a2 | 259 | if (nextvol != 1) |
2cb5dabb | 260 | panic("Changing volumes on pipe input?\n"); |
e108d3a2 KM |
261 | if (volno == 1) |
262 | return; | |
263 | goto gethdr; | |
2cb5dabb KM |
264 | } |
265 | savecnt = blksread; | |
f78e116c | 266 | again: |
e108d3a2 KM |
267 | if (pipein) |
268 | done(1); /* pipes do not get a second chance */ | |
3b29a62c | 269 | if (command == 'R' || command == 'r' || curfile.action != SKIP) { |
f78e116c | 270 | newvol = nextvol; |
3b29a62c KM |
271 | wantnext = 1; |
272 | } else { | |
f78e116c | 273 | newvol = 0; |
3b29a62c KM |
274 | wantnext = 0; |
275 | } | |
f78e116c | 276 | while (newvol <= 0) { |
170639fd KM |
277 | if (tapesread == 0) { |
278 | fprintf(stderr, "%s%s%s%s%s", | |
279 | "You have not read any tapes yet.\n", | |
280 | "Unless you know which volume your", | |
281 | " file(s) are on you should start\n", | |
282 | "with the last volume and work", | |
b4c41341 | 283 | " towards towards the first.\n"); |
170639fd KM |
284 | } else { |
285 | fprintf(stderr, "You have read volumes"); | |
e551fdb2 | 286 | strcpy(buf, ": "); |
170639fd KM |
287 | for (i = 1; i < 32; i++) |
288 | if (tapesread & (1 << i)) { | |
e551fdb2 KM |
289 | fprintf(stderr, "%s%d", buf, i); |
290 | strcpy(buf, ", "); | |
170639fd KM |
291 | } |
292 | fprintf(stderr, "\n"); | |
293 | } | |
538cb7bb | 294 | do { |
b677c5d7 KM |
295 | fprintf(stderr, "Specify next volume #: "); |
296 | (void) fflush(stderr); | |
e551fdb2 KM |
297 | (void) fgets(buf, BUFSIZ, terminal); |
298 | } while (!feof(terminal) && buf[0] == '\n'); | |
b677c5d7 | 299 | if (feof(terminal)) |
538cb7bb | 300 | done(1); |
e551fdb2 | 301 | newvol = atoi(buf); |
f78e116c KM |
302 | if (newvol <= 0) { |
303 | fprintf(stderr, | |
304 | "Volume numbers are positive numerics\n"); | |
305 | } | |
306 | } | |
170639fd KM |
307 | if (newvol == volno) { |
308 | tapesread |= 1 << volno; | |
f78e116c | 309 | return; |
170639fd | 310 | } |
f78e116c | 311 | closemt(); |
7eb08dfe | 312 | fprintf(stderr, "Mount tape volume %d\n", newvol); |
eb317d51 KM |
313 | fprintf(stderr, "Enter ``none'' if there are no more tapes\n"); |
314 | fprintf(stderr, "otherwise enter tape name (default: %s) ", magtape); | |
b677c5d7 | 315 | (void) fflush(stderr); |
e551fdb2 | 316 | (void) fgets(buf, BUFSIZ, terminal); |
7eb08dfe KM |
317 | if (feof(terminal)) |
318 | done(1); | |
e551fdb2 | 319 | if (!strcmp(buf, "none\n")) { |
2657795e KM |
320 | terminateinput(); |
321 | return; | |
eb317d51 | 322 | } |
e551fdb2 KM |
323 | if (buf[0] != '\n') { |
324 | (void) strcpy(magtape, buf); | |
7eb08dfe KM |
325 | magtape[strlen(magtape) - 1] = '\0'; |
326 | } | |
e9e7ecc4 | 327 | #ifdef RRESTORE |
2532f4a9 KM |
328 | if (host) |
329 | mt = rmtopen(magtape, 0); | |
330 | else | |
f78e116c | 331 | #endif |
451eb9a1 | 332 | mt = open(magtape, O_RDONLY, 0); |
2532f4a9 KM |
333 | |
334 | if (mt == -1) { | |
7eb08dfe KM |
335 | fprintf(stderr, "Cannot open %s\n", magtape); |
336 | volno = -1; | |
f78e116c KM |
337 | goto again; |
338 | } | |
e108d3a2 | 339 | gethdr: |
f78e116c | 340 | volno = newvol; |
768eb687 | 341 | setdumpnum(); |
e551fdb2 KM |
342 | FLUSHTAPEBUF(); |
343 | if (gethead(&tmpbuf) == FAIL) { | |
344 | dprintf(stdout, "header read failed at %d blocks\n", blksread); | |
f78e116c KM |
345 | fprintf(stderr, "tape is not dump tape\n"); |
346 | volno = 0; | |
347 | goto again; | |
348 | } | |
41c95556 | 349 | if (tmpbuf.c_volume != volno) { |
f78e116c KM |
350 | fprintf(stderr, "Wrong volume (%d)\n", tmpbuf.c_volume); |
351 | volno = 0; | |
352 | goto again; | |
353 | } | |
2cb5dabb | 354 | if (tmpbuf.c_date != dumpdate || tmpbuf.c_ddate != dumptime) { |
3dbddecd KM |
355 | fprintf(stderr, "Wrong dump date\n\tgot: %s", |
356 | ctime(&tmpbuf.c_date)); | |
357 | fprintf(stderr, "\twanted: %s", ctime(&dumpdate)); | |
2cb5dabb KM |
358 | volno = 0; |
359 | goto again; | |
360 | } | |
170639fd | 361 | tapesread |= 1 << volno; |
5c5f44c7 | 362 | blksread = savecnt; |
3b29a62c KM |
363 | /* |
364 | * If continuing from the previous volume, skip over any | |
365 | * blocks read already at the end of the previous volume. | |
366 | * | |
367 | * If coming to this volume at random, skip to the beginning | |
368 | * of the next record. | |
369 | */ | |
370 | dprintf(stdout, "read %ld recs, tape starts with %ld\n", | |
371 | tpblksread, tmpbuf.c_firstrec); | |
372 | if (tmpbuf.c_type == TS_TAPE && (tmpbuf.c_flags & DR_NEWHEADER)) { | |
373 | if (!wantnext) { | |
374 | tpblksread = tmpbuf.c_firstrec; | |
375 | for (i = tmpbuf.c_count; i > 0; i--) | |
376 | readtape(buf); | |
377 | } else if (tmpbuf.c_firstrec > 0 && | |
378 | tmpbuf.c_firstrec < tpblksread - 1) { | |
379 | /* | |
380 | * -1 since we've read the volume header | |
381 | */ | |
382 | i = tpblksread - tmpbuf.c_firstrec - 1; | |
383 | dprintf(stderr, "Skipping %d duplicate record%s.\n", | |
384 | i, i > 1 ? "s" : ""); | |
385 | while (--i >= 0) | |
386 | readtape(buf); | |
387 | } | |
388 | } | |
f78e116c KM |
389 | if (curfile.action == USING) { |
390 | if (volno == 1) | |
391 | panic("active file into volume 1\n"); | |
392 | return; | |
393 | } | |
b32320ae KM |
394 | /* |
395 | * Skip up to the beginning of the next record | |
396 | */ | |
8d412b7c | 397 | if (tmpbuf.c_type == TS_TAPE && (tmpbuf.c_flags & DR_NEWHEADER)) |
b32320ae KM |
398 | for (i = tmpbuf.c_count; i > 0; i--) |
399 | readtape(buf); | |
5c5f44c7 | 400 | (void) gethead(&spcl); |
b32320ae | 401 | findinode(&spcl); |
f78e116c KM |
402 | if (gettingfile) { |
403 | gettingfile = 0; | |
404 | longjmp(restart, 1); | |
405 | } | |
406 | } | |
407 | ||
2657795e KM |
408 | /* |
409 | * Handle unexpected EOF. | |
410 | */ | |
451eb9a1 | 411 | static void |
2657795e KM |
412 | terminateinput() |
413 | { | |
414 | ||
415 | if (gettingfile && curfile.action == USING) { | |
416 | printf("Warning: %s %s\n", | |
417 | "End-of-input encountered while extracting", curfile.name); | |
418 | } | |
419 | curfile.name = "<name unknown>"; | |
420 | curfile.action = UNKNOWN; | |
451eb9a1 | 421 | curfile.dip = NULL; |
2657795e KM |
422 | curfile.ino = maxino; |
423 | if (gettingfile) { | |
424 | gettingfile = 0; | |
425 | longjmp(restart, 1); | |
426 | } | |
427 | } | |
428 | ||
768eb687 KM |
429 | /* |
430 | * handle multiple dumps per tape by skipping forward to the | |
431 | * appropriate one. | |
432 | */ | |
451eb9a1 | 433 | static void |
768eb687 KM |
434 | setdumpnum() |
435 | { | |
436 | struct mtop tcom; | |
437 | ||
438 | if (dumpnum == 1 || volno != 1) | |
439 | return; | |
440 | if (pipein) { | |
441 | fprintf(stderr, "Cannot have multiple dumps on pipe input\n"); | |
442 | done(1); | |
443 | } | |
444 | tcom.mt_op = MTFSF; | |
445 | tcom.mt_count = dumpnum - 1; | |
e9e7ecc4 | 446 | #ifdef RRESTORE |
2532f4a9 KM |
447 | if (host) |
448 | rmtioctl(MTFSF, dumpnum - 1); | |
449 | else | |
768eb687 | 450 | #endif |
2532f4a9 | 451 | if (ioctl(mt, (int)MTIOCTOP, (char *)&tcom) < 0) |
451eb9a1 | 452 | fprintf(stderr, "ioctl MTFSF: %s\n", strerror(errno)); |
768eb687 KM |
453 | } |
454 | ||
451eb9a1 | 455 | void |
b32320ae KM |
456 | printdumpinfo() |
457 | { | |
b32320ae | 458 | fprintf(stdout, "Dump date: %s", ctime(&spcl.c_date)); |
f441de4a KM |
459 | fprintf(stdout, "Dumped from: %s", |
460 | (spcl.c_ddate == 0) ? "the epoch\n" : ctime(&spcl.c_ddate)); | |
b32320ae KM |
461 | if (spcl.c_host[0] == '\0') |
462 | return; | |
463 | fprintf(stderr, "Level %d dump of %s on %s:%s\n", | |
464 | spcl.c_level, spcl.c_filesys, spcl.c_host, spcl.c_dev); | |
465 | fprintf(stderr, "Label: %s\n", spcl.c_label); | |
466 | } | |
467 | ||
451eb9a1 | 468 | int |
f78e116c KM |
469 | extractfile(name) |
470 | char *name; | |
471 | { | |
472 | int mode; | |
165b1daf | 473 | struct timeval timep[2]; |
f78e116c | 474 | struct entry *ep; |
f78e116c KM |
475 | |
476 | curfile.name = name; | |
477 | curfile.action = USING; | |
4f57cc9f KM |
478 | timep[0].tv_sec = curfile.dip->di_atime.ts_sec; |
479 | timep[0].tv_usec = curfile.dip->di_atime.ts_nsec / 1000; | |
480 | timep[1].tv_sec = curfile.dip->di_mtime.ts_sec; | |
481 | timep[1].tv_usec = curfile.dip->di_mtime.ts_nsec / 1000; | |
f78e116c KM |
482 | mode = curfile.dip->di_mode; |
483 | switch (mode & IFMT) { | |
484 | ||
485 | default: | |
486 | fprintf(stderr, "%s: unknown file mode 0%o\n", name, mode); | |
487 | skipfile(); | |
488 | return (FAIL); | |
489 | ||
74e940f5 KM |
490 | case IFSOCK: |
491 | vprintf(stdout, "skipped socket %s\n", name); | |
492 | skipfile(); | |
493 | return (GOOD); | |
494 | ||
f78e116c KM |
495 | case IFDIR: |
496 | if (mflag) { | |
497 | ep = lookupname(name); | |
451eb9a1 | 498 | if (ep == NULL || ep->e_flags & EXTRACT) |
f78e116c KM |
499 | panic("unextracted directory %s\n", name); |
500 | skipfile(); | |
501 | return (GOOD); | |
502 | } | |
503 | vprintf(stdout, "extract file %s\n", name); | |
504 | return (genliteraldir(name, curfile.ino)); | |
505 | ||
506 | case IFLNK: | |
507 | lnkbuf[0] = '\0'; | |
508 | pathlen = 0; | |
509 | getfile(xtrlnkfile, xtrlnkskip); | |
510 | if (pathlen == 0) { | |
511 | vprintf(stdout, | |
512 | "%s: zero length symbolic link (ignored)\n", name); | |
bdeceadb KM |
513 | return (GOOD); |
514 | } | |
515 | return (linkit(lnkbuf, name, SYMLINK)); | |
f78e116c KM |
516 | |
517 | case IFCHR: | |
518 | case IFBLK: | |
519 | vprintf(stdout, "extract special file %s\n", name); | |
414c4f09 KM |
520 | if (Nflag) { |
521 | skipfile(); | |
522 | return (GOOD); | |
523 | } | |
f78e116c | 524 | if (mknod(name, mode, (int)curfile.dip->di_rdev) < 0) { |
451eb9a1 KB |
525 | fprintf(stderr, "%s: cannot create special file: %s\n", |
526 | name, strerror(errno)); | |
f78e116c KM |
527 | skipfile(); |
528 | return (FAIL); | |
529 | } | |
768eb687 KM |
530 | (void) chown(name, curfile.dip->di_uid, curfile.dip->di_gid); |
531 | (void) chmod(name, mode); | |
f78e116c | 532 | skipfile(); |
165b1daf | 533 | utimes(name, timep); |
f78e116c KM |
534 | return (GOOD); |
535 | ||
536 | case IFREG: | |
537 | vprintf(stdout, "extract file %s\n", name); | |
414c4f09 KM |
538 | if (Nflag) { |
539 | skipfile(); | |
540 | return (GOOD); | |
541 | } | |
15aeb519 | 542 | if ((ofile = creat(name, 0666)) < 0) { |
451eb9a1 KB |
543 | fprintf(stderr, "%s: cannot create file: %s\n", |
544 | name, strerror(errno)); | |
f78e116c KM |
545 | skipfile(); |
546 | return (FAIL); | |
547 | } | |
768eb687 KM |
548 | (void) fchown(ofile, curfile.dip->di_uid, curfile.dip->di_gid); |
549 | (void) fchmod(ofile, mode); | |
f78e116c | 550 | getfile(xtrfile, xtrskip); |
768eb687 | 551 | (void) close(ofile); |
165b1daf | 552 | utimes(name, timep); |
f78e116c KM |
553 | return (GOOD); |
554 | } | |
555 | /* NOTREACHED */ | |
556 | } | |
557 | ||
e108d3a2 KM |
558 | /* |
559 | * skip over bit maps on the tape | |
560 | */ | |
451eb9a1 | 561 | void |
e108d3a2 KM |
562 | skipmaps() |
563 | { | |
564 | ||
e551fdb2 | 565 | while (spcl.c_type == TS_BITS || spcl.c_type == TS_CLRI) |
e108d3a2 KM |
566 | skipfile(); |
567 | } | |
568 | ||
569 | /* | |
570 | * skip over a file on the tape | |
571 | */ | |
451eb9a1 | 572 | void |
f78e116c KM |
573 | skipfile() |
574 | { | |
f78e116c KM |
575 | |
576 | curfile.action = SKIP; | |
e551fdb2 | 577 | getfile(xtrnull, xtrnull); |
f78e116c KM |
578 | } |
579 | ||
580 | /* | |
e551fdb2 KM |
581 | * Extract a file from the tape. |
582 | * When an allocated block is found it is passed to the fill function; | |
583 | * when an unallocated block (hole) is found, a zeroed buffer is passed | |
584 | * to the skip function. | |
f78e116c | 585 | */ |
451eb9a1 | 586 | void |
e551fdb2 | 587 | getfile(fill, skip) |
451eb9a1 KB |
588 | void (*fill) __P((char *, long)); |
589 | void (*skip) __P((char *, long)); | |
f78e116c KM |
590 | { |
591 | register int i; | |
592 | int curblk = 0; | |
dad5e0ef | 593 | long size = spcl.c_dinode.di_size; |
f78e116c KM |
594 | static char clearedbuf[MAXBSIZE]; |
595 | char buf[MAXBSIZE / TP_BSIZE][TP_BSIZE]; | |
4f8ea093 | 596 | char junk[TP_BSIZE]; |
f78e116c | 597 | |
e551fdb2 | 598 | if (spcl.c_type == TS_END) |
f78e116c | 599 | panic("ran off end of tape\n"); |
e551fdb2 | 600 | if (spcl.c_magic != NFS_MAGIC) |
f78e116c | 601 | panic("not at beginning of a file\n"); |
e108d3a2 | 602 | if (!gettingfile && setjmp(restart) != 0) |
f78e116c KM |
603 | return; |
604 | gettingfile++; | |
605 | loop: | |
606 | for (i = 0; i < spcl.c_count; i++) { | |
607 | if (spcl.c_addr[i]) { | |
608 | readtape(&buf[curblk++][0]); | |
609 | if (curblk == fssize / TP_BSIZE) { | |
451eb9a1 | 610 | (*fill)((char *)buf, size > TP_BSIZE ? |
f78e116c KM |
611 | (long) (fssize) : |
612 | (curblk - 1) * TP_BSIZE + size); | |
613 | curblk = 0; | |
614 | } | |
615 | } else { | |
616 | if (curblk > 0) { | |
451eb9a1 | 617 | (*fill)((char *)buf, size > TP_BSIZE ? |
f78e116c KM |
618 | (long) (curblk * TP_BSIZE) : |
619 | (curblk - 1) * TP_BSIZE + size); | |
620 | curblk = 0; | |
621 | } | |
e551fdb2 | 622 | (*skip)(clearedbuf, size > TP_BSIZE ? |
f78e116c KM |
623 | (long) TP_BSIZE : size); |
624 | } | |
4f8ea093 KM |
625 | if ((size -= TP_BSIZE) <= 0) { |
626 | for (i++; i < spcl.c_count; i++) | |
627 | if (spcl.c_addr[i]) | |
628 | readtape(junk); | |
9f13f26d | 629 | break; |
4f8ea093 | 630 | } |
f78e116c | 631 | } |
e551fdb2 KM |
632 | if (gethead(&spcl) == GOOD && size > 0) { |
633 | if (spcl.c_type == TS_ADDR) | |
9f13f26d | 634 | goto loop; |
e551fdb2 KM |
635 | dprintf(stdout, |
636 | "Missing address (header) block for %s at %d blocks\n", | |
637 | curfile.name, blksread); | |
f78e116c | 638 | } |
9f13f26d | 639 | if (curblk > 0) |
451eb9a1 | 640 | (*fill)((char *)buf, (curblk * TP_BSIZE) + size); |
b32320ae | 641 | findinode(&spcl); |
f78e116c KM |
642 | gettingfile = 0; |
643 | } | |
644 | ||
645 | /* | |
e551fdb2 | 646 | * Write out the next block of a file. |
f78e116c | 647 | */ |
451eb9a1 | 648 | static void |
f78e116c KM |
649 | xtrfile(buf, size) |
650 | char *buf; | |
651 | long size; | |
652 | { | |
653 | ||
414c4f09 KM |
654 | if (Nflag) |
655 | return; | |
f78e116c | 656 | if (write(ofile, buf, (int) size) == -1) { |
451eb9a1 KB |
657 | fprintf(stderr, |
658 | "write error extracting inode %d, name %s\nwrite: %s\n", | |
659 | curfile.ino, curfile.name, strerror(errno)); | |
f78e116c KM |
660 | done(1); |
661 | } | |
662 | } | |
663 | ||
e551fdb2 KM |
664 | /* |
665 | * Skip over a hole in a file. | |
666 | */ | |
667 | /* ARGSUSED */ | |
451eb9a1 | 668 | static void |
f78e116c KM |
669 | xtrskip(buf, size) |
670 | char *buf; | |
671 | long size; | |
672 | { | |
673 | ||
451eb9a1 KB |
674 | if (lseek(ofile, size, SEEK_CUR) == (long)-1) { |
675 | fprintf(stderr, | |
676 | "seek error extracting inode %d, name %s\nlseek: %s\n", | |
677 | curfile.ino, curfile.name, strerror(errno)); | |
f78e116c KM |
678 | done(1); |
679 | } | |
680 | } | |
681 | ||
e551fdb2 KM |
682 | /* |
683 | * Collect the next block of a symbolic link. | |
684 | */ | |
451eb9a1 | 685 | static void |
f78e116c KM |
686 | xtrlnkfile(buf, size) |
687 | char *buf; | |
688 | long size; | |
689 | { | |
690 | ||
691 | pathlen += size; | |
692 | if (pathlen > MAXPATHLEN) { | |
693 | fprintf(stderr, "symbolic link name: %s->%s%s; too long %d\n", | |
694 | curfile.name, lnkbuf, buf, pathlen); | |
695 | done(1); | |
696 | } | |
538cb7bb | 697 | (void) strcat(lnkbuf, buf); |
f78e116c KM |
698 | } |
699 | ||
e551fdb2 KM |
700 | /* |
701 | * Skip over a hole in a symbolic link (should never happen). | |
702 | */ | |
703 | /* ARGSUSED */ | |
451eb9a1 | 704 | static void |
f78e116c KM |
705 | xtrlnkskip(buf, size) |
706 | char *buf; | |
707 | long size; | |
708 | { | |
709 | ||
f78e116c KM |
710 | fprintf(stderr, "unallocated block in symbolic link %s\n", |
711 | curfile.name); | |
712 | done(1); | |
713 | } | |
714 | ||
e551fdb2 KM |
715 | /* |
716 | * Collect the next block of a bit map. | |
717 | */ | |
451eb9a1 | 718 | static void |
f78e116c KM |
719 | xtrmap(buf, size) |
720 | char *buf; | |
721 | long size; | |
722 | { | |
723 | ||
724 | bcopy(buf, map, size); | |
cf6db0ab | 725 | map += size; |
f78e116c KM |
726 | } |
727 | ||
e551fdb2 KM |
728 | /* |
729 | * Skip over a hole in a bit map (should never happen). | |
730 | */ | |
731 | /* ARGSUSED */ | |
451eb9a1 | 732 | static void |
f78e116c KM |
733 | xtrmapskip(buf, size) |
734 | char *buf; | |
735 | long size; | |
736 | { | |
737 | ||
f78e116c | 738 | panic("hole in map\n"); |
cf6db0ab | 739 | map += size; |
f78e116c KM |
740 | } |
741 | ||
e551fdb2 KM |
742 | /* |
743 | * Noop, when an extraction function is not needed. | |
744 | */ | |
745 | /* ARGSUSED */ | |
451eb9a1 | 746 | void |
e551fdb2 KM |
747 | xtrnull(buf, size) |
748 | char *buf; | |
749 | long size; | |
750 | { | |
751 | ||
752 | return; | |
753 | } | |
f78e116c KM |
754 | |
755 | /* | |
e551fdb2 KM |
756 | * Read TP_BSIZE blocks from the input. |
757 | * Handle read errors, and end of media. | |
f78e116c | 758 | */ |
451eb9a1 | 759 | static void |
e551fdb2 KM |
760 | readtape(buf) |
761 | char *buf; | |
f78e116c | 762 | { |
e551fdb2 KM |
763 | long rd, newvol, i; |
764 | int cnt, seek_failed; | |
f78e116c | 765 | |
e551fdb2 KM |
766 | if (blkcnt < numtrec) { |
767 | bcopy(&tapebuf[(blkcnt++ * TP_BSIZE)], buf, (long)TP_BSIZE); | |
b97e998a | 768 | blksread++; |
3b29a62c | 769 | tpblksread++; |
b97e998a KM |
770 | return; |
771 | } | |
772 | for (i = 0; i < ntrec; i++) | |
e551fdb2 | 773 | ((struct s_spcl *)&tapebuf[i * TP_BSIZE])->c_magic = 0; |
c8fb0747 KM |
774 | if (numtrec == 0) |
775 | numtrec = ntrec; | |
2532f4a9 | 776 | cnt = ntrec * TP_BSIZE; |
b97e998a KM |
777 | rd = 0; |
778 | getmore: | |
e9e7ecc4 | 779 | #ifdef RRESTORE |
2532f4a9 | 780 | if (host) |
e551fdb2 | 781 | i = rmtread(&tapebuf[rd], cnt); |
2532f4a9 | 782 | else |
f78e116c | 783 | #endif |
e551fdb2 | 784 | i = read(mt, &tapebuf[rd], cnt); |
c8fb0747 KM |
785 | /* |
786 | * Check for mid-tape short read error. | |
2532f4a9 | 787 | * If found, skip rest of buffer and start with the next. |
c8fb0747 | 788 | */ |
2532f4a9 KM |
789 | if (!pipein && numtrec < ntrec && i > 0) { |
790 | dprintf(stdout, "mid-media short read error.\n"); | |
c8fb0747 | 791 | numtrec = ntrec; |
c8fb0747 KM |
792 | } |
793 | /* | |
794 | * Handle partial block read. | |
795 | */ | |
4f57cc9f KM |
796 | if (pipein && i == 0 && rd > 0) |
797 | i = rd; | |
798 | else if (i > 0 && i != ntrec * TP_BSIZE) { | |
b97e998a | 799 | if (pipein) { |
74025ab9 KM |
800 | rd += i; |
801 | cnt -= i; | |
802 | if (cnt > 0) | |
803 | goto getmore; | |
804 | i = rd; | |
b97e998a | 805 | } else { |
2532f4a9 KM |
806 | /* |
807 | * Short read. Process the blocks read. | |
808 | */ | |
b97e998a | 809 | if (i % TP_BSIZE != 0) |
2532f4a9 KM |
810 | vprintf(stdout, |
811 | "partial block read: %d should be %d\n", | |
812 | i, ntrec * TP_BSIZE); | |
c8fb0747 | 813 | numtrec = i / TP_BSIZE; |
74025ab9 | 814 | } |
b97e998a | 815 | } |
c8fb0747 KM |
816 | /* |
817 | * Handle read error. | |
818 | */ | |
b97e998a KM |
819 | if (i < 0) { |
820 | fprintf(stderr, "Tape read error while "); | |
821 | switch (curfile.action) { | |
822 | default: | |
823 | fprintf(stderr, "trying to set up tape\n"); | |
824 | break; | |
825 | case UNKNOWN: | |
bf7abb47 | 826 | fprintf(stderr, "trying to resynchronize\n"); |
b97e998a KM |
827 | break; |
828 | case USING: | |
829 | fprintf(stderr, "restoring %s\n", curfile.name); | |
830 | break; | |
831 | case SKIP: | |
832 | fprintf(stderr, "skipping over inode %d\n", | |
833 | curfile.ino); | |
834 | break; | |
835 | } | |
836 | if (!yflag && !reply("continue")) | |
837 | done(1); | |
e551fdb2 KM |
838 | i = ntrec * TP_BSIZE; |
839 | bzero(tapebuf, i); | |
e9e7ecc4 | 840 | #ifdef RRESTORE |
2532f4a9 KM |
841 | if (host) |
842 | seek_failed = (rmtseek(i, 1) < 0); | |
843 | else | |
f78e116c | 844 | #endif |
451eb9a1 | 845 | seek_failed = (lseek(mt, i, SEEK_CUR) == (off_t)-1); |
2532f4a9 KM |
846 | |
847 | if (seek_failed) { | |
451eb9a1 KB |
848 | fprintf(stderr, |
849 | "continuation failed: %s\n", strerror(errno)); | |
b97e998a | 850 | done(1); |
f78e116c | 851 | } |
b97e998a | 852 | } |
c8fb0747 KM |
853 | /* |
854 | * Handle end of tape. | |
855 | */ | |
b97e998a | 856 | if (i == 0) { |
2532f4a9 | 857 | vprintf(stdout, "End-of-tape encountered\n"); |
ad073f89 KM |
858 | if (!pipein) { |
859 | newvol = volno + 1; | |
860 | volno = 0; | |
c8fb0747 | 861 | numtrec = 0; |
ad073f89 | 862 | getvol(newvol); |
e551fdb2 | 863 | readtape(buf); |
f78e116c KM |
864 | return; |
865 | } | |
ad073f89 KM |
866 | if (rd % TP_BSIZE != 0) |
867 | panic("partial block read: %d should be %d\n", | |
868 | rd, ntrec * TP_BSIZE); | |
2657795e | 869 | terminateinput(); |
e551fdb2 | 870 | bcopy((char *)&endoftapemark, &tapebuf[rd], (long)TP_BSIZE); |
f78e116c | 871 | } |
e551fdb2 KM |
872 | blkcnt = 0; |
873 | bcopy(&tapebuf[(blkcnt++ * TP_BSIZE)], buf, (long)TP_BSIZE); | |
2cb5dabb | 874 | blksread++; |
3b29a62c | 875 | tpblksread++; |
f78e116c KM |
876 | } |
877 | ||
451eb9a1 | 878 | static void |
b97e998a KM |
879 | findtapeblksize() |
880 | { | |
881 | register long i; | |
882 | ||
883 | for (i = 0; i < ntrec; i++) | |
e551fdb2 KM |
884 | ((struct s_spcl *)&tapebuf[i * TP_BSIZE])->c_magic = 0; |
885 | blkcnt = 0; | |
b97e998a | 886 | #ifdef RRESTORE |
2532f4a9 | 887 | if (host) |
e551fdb2 | 888 | i = rmtread(tapebuf, ntrec * TP_BSIZE); |
2532f4a9 | 889 | else |
b97e998a | 890 | #endif |
e551fdb2 | 891 | i = read(mt, tapebuf, ntrec * TP_BSIZE); |
2532f4a9 | 892 | |
b97e998a | 893 | if (i <= 0) { |
451eb9a1 | 894 | fprintf(stderr, "tape read error: %s\n", strerror(errno)); |
b97e998a KM |
895 | done(1); |
896 | } | |
897 | if (i % TP_BSIZE != 0) { | |
898 | fprintf(stderr, "Tape block size (%d) %s (%d)\n", | |
899 | i, "is not a multiple of dump block size", TP_BSIZE); | |
900 | done(1); | |
901 | } | |
902 | ntrec = i / TP_BSIZE; | |
c8fb0747 | 903 | numtrec = ntrec; |
b97e998a KM |
904 | vprintf(stdout, "Tape block size is %d\n", ntrec); |
905 | } | |
906 | ||
451eb9a1 | 907 | void |
f78e116c KM |
908 | closemt() |
909 | { | |
e551fdb2 | 910 | |
f78e116c KM |
911 | if (mt < 0) |
912 | return; | |
e9e7ecc4 | 913 | #ifdef RRESTORE |
2532f4a9 KM |
914 | if (host) |
915 | rmtclose(); | |
916 | else | |
f78e116c | 917 | #endif |
2532f4a9 | 918 | (void) close(mt); |
f78e116c KM |
919 | } |
920 | ||
f78e116c | 921 | /* |
e551fdb2 KM |
922 | * Read the next block from the tape. |
923 | * Check to see if it is one of several vintage headers. | |
924 | * If it is an old style header, convert it to a new style header. | |
925 | * If it is not any valid header, return an error. | |
f78e116c | 926 | */ |
451eb9a1 | 927 | static int |
f78e116c KM |
928 | gethead(buf) |
929 | struct s_spcl *buf; | |
930 | { | |
eb317d51 | 931 | long i; |
6e5750fa KM |
932 | union { |
933 | quad_t qval; | |
934 | long val[2]; | |
935 | } qcvt; | |
f78e116c KM |
936 | union u_ospcl { |
937 | char dummy[TP_BSIZE]; | |
938 | struct s_ospcl { | |
2cb5dabb KM |
939 | long c_type; |
940 | long c_date; | |
941 | long c_ddate; | |
942 | long c_volume; | |
943 | long c_tapea; | |
cf6db0ab | 944 | u_short c_inumber; |
2cb5dabb KM |
945 | long c_magic; |
946 | long c_checksum; | |
f78e116c KM |
947 | struct odinode { |
948 | unsigned short odi_mode; | |
cf6db0ab KM |
949 | u_short odi_nlink; |
950 | u_short odi_uid; | |
951 | u_short odi_gid; | |
2cb5dabb KM |
952 | long odi_size; |
953 | long odi_rdev; | |
f78e116c | 954 | char odi_addr[36]; |
2cb5dabb KM |
955 | long odi_atime; |
956 | long odi_mtime; | |
957 | long odi_ctime; | |
f78e116c | 958 | } c_dinode; |
2cb5dabb KM |
959 | long c_count; |
960 | char c_addr[256]; | |
f78e116c KM |
961 | } s_ospcl; |
962 | } u_ospcl; | |
963 | ||
964 | if (!cvtflag) { | |
965 | readtape((char *)buf); | |
b4c41341 KS |
966 | if (buf->c_magic != NFS_MAGIC) { |
967 | if (swabl(buf->c_magic) != NFS_MAGIC) | |
968 | return (FAIL); | |
969 | if (!Bcvt) { | |
970 | vprintf(stdout, "Note: Doing Byte swapping\n"); | |
971 | Bcvt = 1; | |
972 | } | |
973 | } | |
974 | if (checksum((int *)buf) == FAIL) | |
975 | return (FAIL); | |
976 | if (Bcvt) | |
451eb9a1 | 977 | swabst((u_char *)"8l4s31l", (u_char *)buf); |
5c5f44c7 | 978 | goto good; |
f78e116c KM |
979 | } |
980 | readtape((char *)(&u_ospcl.s_ospcl)); | |
981 | bzero((char *)buf, (long)TP_BSIZE); | |
982 | buf->c_type = u_ospcl.s_ospcl.c_type; | |
983 | buf->c_date = u_ospcl.s_ospcl.c_date; | |
984 | buf->c_ddate = u_ospcl.s_ospcl.c_ddate; | |
985 | buf->c_volume = u_ospcl.s_ospcl.c_volume; | |
986 | buf->c_tapea = u_ospcl.s_ospcl.c_tapea; | |
987 | buf->c_inumber = u_ospcl.s_ospcl.c_inumber; | |
988 | buf->c_checksum = u_ospcl.s_ospcl.c_checksum; | |
989 | buf->c_magic = u_ospcl.s_ospcl.c_magic; | |
990 | buf->c_dinode.di_mode = u_ospcl.s_ospcl.c_dinode.odi_mode; | |
991 | buf->c_dinode.di_nlink = u_ospcl.s_ospcl.c_dinode.odi_nlink; | |
992 | buf->c_dinode.di_uid = u_ospcl.s_ospcl.c_dinode.odi_uid; | |
993 | buf->c_dinode.di_gid = u_ospcl.s_ospcl.c_dinode.odi_gid; | |
994 | buf->c_dinode.di_size = u_ospcl.s_ospcl.c_dinode.odi_size; | |
995 | buf->c_dinode.di_rdev = u_ospcl.s_ospcl.c_dinode.odi_rdev; | |
4f57cc9f KM |
996 | buf->c_dinode.di_atime.ts_sec = u_ospcl.s_ospcl.c_dinode.odi_atime; |
997 | buf->c_dinode.di_mtime.ts_sec = u_ospcl.s_ospcl.c_dinode.odi_mtime; | |
998 | buf->c_dinode.di_ctime.ts_sec = u_ospcl.s_ospcl.c_dinode.odi_ctime; | |
f78e116c | 999 | buf->c_count = u_ospcl.s_ospcl.c_count; |
2cb5dabb | 1000 | bcopy(u_ospcl.s_ospcl.c_addr, buf->c_addr, (long)256); |
f78e116c | 1001 | if (u_ospcl.s_ospcl.c_magic != OFS_MAGIC || |
5c5f44c7 | 1002 | checksum((int *)(&u_ospcl.s_ospcl)) == FAIL) |
2cb5dabb | 1003 | return(FAIL); |
f78e116c | 1004 | buf->c_magic = NFS_MAGIC; |
5c5f44c7 KM |
1005 | |
1006 | good: | |
15822e16 | 1007 | if ((buf->c_dinode.di_size == 0 || buf->c_dinode.di_size > 0xfffffff) && |
025e61b9 | 1008 | (buf->c_dinode.di_mode & IFMT) == IFDIR && Qcvt == 0) { |
6e5750fa KM |
1009 | qcvt.qval = buf->c_dinode.di_size; |
1010 | if (qcvt.val[0] || qcvt.val[1]) { | |
b4c41341 KS |
1011 | printf("Note: Doing Quad swapping\n"); |
1012 | Qcvt = 1; | |
1013 | } | |
1014 | } | |
1015 | if (Qcvt) { | |
6e5750fa KM |
1016 | qcvt.qval = buf->c_dinode.di_size; |
1017 | i = qcvt.val[1]; | |
1018 | qcvt.val[1] = qcvt.val[0]; | |
1019 | qcvt.val[0] = i; | |
087b1e18 | 1020 | buf->c_dinode.di_size = qcvt.qval; |
b4c41341 | 1021 | } |
2532f4a9 | 1022 | |
5c5f44c7 KM |
1023 | switch (buf->c_type) { |
1024 | ||
1025 | case TS_CLRI: | |
1026 | case TS_BITS: | |
1027 | /* | |
1028 | * Have to patch up missing information in bit map headers | |
1029 | */ | |
1030 | buf->c_inumber = 0; | |
1031 | buf->c_dinode.di_size = buf->c_count * TP_BSIZE; | |
1032 | for (i = 0; i < buf->c_count; i++) | |
1033 | buf->c_addr[i]++; | |
1034 | break; | |
1035 | ||
1036 | case TS_TAPE: | |
dad5e0ef KM |
1037 | if ((buf->c_flags & DR_NEWINODEFMT) == 0) |
1038 | oldinofmt = 1; | |
1039 | /* fall through */ | |
5c5f44c7 KM |
1040 | case TS_END: |
1041 | buf->c_inumber = 0; | |
1042 | break; | |
1043 | ||
1044 | case TS_INODE: | |
1045 | case TS_ADDR: | |
1046 | break; | |
1047 | ||
1048 | default: | |
1049 | panic("gethead: unknown inode type %d\n", buf->c_type); | |
1050 | break; | |
1051 | } | |
dad5e0ef KM |
1052 | /* |
1053 | * If we are restoring a filesystem with old format inodes, | |
1054 | * copy the uid/gid to the new location. | |
1055 | */ | |
1056 | if (oldinofmt) { | |
1057 | buf->c_dinode.di_uid = buf->c_dinode.di_ouid; | |
1058 | buf->c_dinode.di_gid = buf->c_dinode.di_ogid; | |
1059 | } | |
2cb5dabb KM |
1060 | if (dflag) |
1061 | accthdr(buf); | |
1062 | return(GOOD); | |
1063 | } | |
1064 | ||
1065 | /* | |
1066 | * Check that a header is where it belongs and predict the next header | |
1067 | */ | |
451eb9a1 | 1068 | static void |
2cb5dabb KM |
1069 | accthdr(header) |
1070 | struct s_spcl *header; | |
1071 | { | |
7851e15d | 1072 | static ino_t previno = 0x7fffffff; |
2cb5dabb KM |
1073 | static int prevtype; |
1074 | static long predict; | |
1075 | long blks, i; | |
1076 | ||
8d412b7c | 1077 | if (header->c_type == TS_TAPE) { |
bf0c06c3 KM |
1078 | fprintf(stderr, "Volume header (%s inode format) ", |
1079 | oldinofmt ? "old" : "new"); | |
3b29a62c | 1080 | if (header->c_firstrec) |
bf0c06c3 | 1081 | fprintf(stderr, "begins with record %d", |
3b29a62c KM |
1082 | header->c_firstrec); |
1083 | fprintf(stderr, "\n"); | |
b8f4e820 | 1084 | previno = 0x7fffffff; |
5c5f44c7 KM |
1085 | return; |
1086 | } | |
7851e15d | 1087 | if (previno == 0x7fffffff) |
2cb5dabb KM |
1088 | goto newcalc; |
1089 | switch (prevtype) { | |
2cb5dabb | 1090 | case TS_BITS: |
5c5f44c7 | 1091 | fprintf(stderr, "Dump mask header"); |
2cb5dabb KM |
1092 | break; |
1093 | case TS_CLRI: | |
5c5f44c7 | 1094 | fprintf(stderr, "Remove mask header"); |
2cb5dabb KM |
1095 | break; |
1096 | case TS_INODE: | |
5c5f44c7 | 1097 | fprintf(stderr, "File header, ino %d", previno); |
2cb5dabb KM |
1098 | break; |
1099 | case TS_ADDR: | |
5c5f44c7 | 1100 | fprintf(stderr, "File continuation header, ino %d", previno); |
2cb5dabb KM |
1101 | break; |
1102 | case TS_END: | |
5c5f44c7 | 1103 | fprintf(stderr, "End of tape header"); |
2cb5dabb KM |
1104 | break; |
1105 | } | |
2cb5dabb KM |
1106 | if (predict != blksread - 1) |
1107 | fprintf(stderr, "; predicted %d blocks, got %d blocks", | |
1108 | predict, blksread - 1); | |
1109 | fprintf(stderr, "\n"); | |
1110 | newcalc: | |
1111 | blks = 0; | |
5c5f44c7 | 1112 | if (header->c_type != TS_END) |
2cb5dabb KM |
1113 | for (i = 0; i < header->c_count; i++) |
1114 | if (header->c_addr[i] != 0) | |
1115 | blks++; | |
1116 | predict = blks; | |
1117 | blksread = 0; | |
1118 | prevtype = header->c_type; | |
1119 | previno = header->c_inumber; | |
f78e116c KM |
1120 | } |
1121 | ||
1122 | /* | |
1123 | * Find an inode header. | |
1124 | * Complain if had to skip, and complain is set. | |
1125 | */ | |
451eb9a1 | 1126 | static void |
b32320ae | 1127 | findinode(header) |
f78e116c | 1128 | struct s_spcl *header; |
f78e116c | 1129 | { |
2cb5dabb | 1130 | static long skipcnt = 0; |
b8f4e820 KM |
1131 | long i; |
1132 | char buf[TP_BSIZE]; | |
f78e116c KM |
1133 | |
1134 | curfile.name = "<name unknown>"; | |
1135 | curfile.action = UNKNOWN; | |
451eb9a1 | 1136 | curfile.dip = NULL; |
f78e116c | 1137 | curfile.ino = 0; |
e551fdb2 KM |
1138 | do { |
1139 | if (header->c_magic != NFS_MAGIC) { | |
f78e116c | 1140 | skipcnt++; |
e551fdb2 KM |
1141 | while (gethead(header) == FAIL || |
1142 | header->c_date != dumpdate) | |
1143 | skipcnt++; | |
1144 | } | |
1145 | switch (header->c_type) { | |
1146 | ||
1147 | case TS_ADDR: | |
b8f4e820 KM |
1148 | /* |
1149 | * Skip up to the beginning of the next record | |
1150 | */ | |
1151 | for (i = 0; i < header->c_count; i++) | |
1152 | if (header->c_addr[i]) | |
1153 | readtape(buf); | |
e551fdb2 KM |
1154 | while (gethead(header) == FAIL || |
1155 | header->c_date != dumpdate) | |
1156 | skipcnt++; | |
1157 | break; | |
1158 | ||
1159 | case TS_INODE: | |
f78e116c KM |
1160 | curfile.dip = &header->c_dinode; |
1161 | curfile.ino = header->c_inumber; | |
1162 | break; | |
e551fdb2 KM |
1163 | |
1164 | case TS_END: | |
f78e116c KM |
1165 | curfile.ino = maxino; |
1166 | break; | |
e551fdb2 KM |
1167 | |
1168 | case TS_CLRI: | |
f78e116c | 1169 | curfile.name = "<file removal list>"; |
e108d3a2 | 1170 | break; |
e551fdb2 KM |
1171 | |
1172 | case TS_BITS: | |
f78e116c | 1173 | curfile.name = "<file dump list>"; |
e108d3a2 | 1174 | break; |
e551fdb2 KM |
1175 | |
1176 | case TS_TAPE: | |
1177 | panic("unexpected tape header\n"); | |
1178 | /* NOTREACHED */ | |
1179 | ||
1180 | default: | |
1181 | panic("unknown tape header type %d\n", spcl.c_type); | |
1182 | /* NOTREACHED */ | |
1183 | ||
f78e116c | 1184 | } |
e551fdb2 | 1185 | } while (header->c_type == TS_ADDR); |
b32320ae | 1186 | if (skipcnt > 0) |
dd1900f1 | 1187 | fprintf(stderr, "resync restore, skipped %d blocks\n", skipcnt); |
f78e116c KM |
1188 | skipcnt = 0; |
1189 | } | |
1190 | ||
451eb9a1 | 1191 | static int |
e551fdb2 KM |
1192 | checksum(buf) |
1193 | register int *buf; | |
f78e116c KM |
1194 | { |
1195 | register int i, j; | |
1196 | ||
1197 | j = sizeof(union u_spcl) / sizeof(int); | |
1198 | i = 0; | |
b4c41341 KS |
1199 | if(!Bcvt) { |
1200 | do | |
e551fdb2 | 1201 | i += *buf++; |
b4c41341 KS |
1202 | while (--j); |
1203 | } else { | |
1204 | /* What happens if we want to read restore tapes | |
1205 | for a 16bit int machine??? */ | |
1206 | do | |
e551fdb2 | 1207 | i += swabl(*buf++); |
b4c41341 KS |
1208 | while (--j); |
1209 | } | |
1210 | ||
f78e116c KM |
1211 | if (i != CHECKSUM) { |
1212 | fprintf(stderr, "Checksum error %o, inode %d file %s\n", i, | |
1213 | curfile.ino, curfile.name); | |
2cb5dabb | 1214 | return(FAIL); |
f78e116c | 1215 | } |
2cb5dabb | 1216 | return(GOOD); |
f78e116c KM |
1217 | } |
1218 | ||
e9e7ecc4 | 1219 | #ifdef RRESTORE |
451eb9a1 KB |
1220 | #if __STDC__ |
1221 | #include <stdarg.h> | |
1222 | #else | |
1223 | #include <varargs.h> | |
1224 | #endif | |
f78e116c | 1225 | |
451eb9a1 KB |
1226 | void |
1227 | #if __STDC__ | |
1228 | msg(const char *fmt, ...) | |
1229 | #else | |
1230 | msg(fmt, va_alist) | |
1231 | char *fmt; | |
1232 | va_dcl | |
1233 | #endif | |
1234 | { | |
1235 | va_list ap; | |
1236 | #if __STDC__ | |
1237 | va_start(ap, fmt); | |
1238 | #else | |
1239 | va_start(ap); | |
1240 | #endif | |
1241 | (void)vfprintf(stderr, fmt, ap); | |
1242 | va_end(ap); | |
f78e116c | 1243 | } |
2532f4a9 | 1244 | #endif /* RRESTORE */ |
b4c41341 | 1245 | |
451eb9a1 | 1246 | static u_char * |
025e61b9 KM |
1247 | swabshort(sp, n) |
1248 | register u_char *sp; | |
1249 | register int n; | |
1250 | { | |
1251 | char c; | |
1252 | ||
1253 | while (--n >= 0) { | |
1254 | c = sp[0]; sp[0] = sp[1]; sp[1] = c; | |
1255 | sp += 2; | |
1256 | } | |
1257 | return (sp); | |
1258 | } | |
1259 | ||
451eb9a1 | 1260 | static u_char * |
025e61b9 KM |
1261 | swablong(sp, n) |
1262 | register u_char *sp; | |
1263 | register int n; | |
1264 | { | |
1265 | char c; | |
1266 | ||
1267 | while (--n >= 0) { | |
1268 | c = sp[0]; sp[0] = sp[3]; sp[3] = c; | |
1269 | c = sp[2]; sp[2] = sp[1]; sp[1] = c; | |
1270 | sp += 4; | |
1271 | } | |
1272 | return (sp); | |
1273 | } | |
1274 | ||
451eb9a1 | 1275 | void |
b4c41341 | 1276 | swabst(cp, sp) |
025e61b9 | 1277 | register u_char *cp, *sp; |
b4c41341 KS |
1278 | { |
1279 | int n = 0; | |
025e61b9 KM |
1280 | |
1281 | while (*cp) { | |
b4c41341 KS |
1282 | switch (*cp) { |
1283 | case '0': case '1': case '2': case '3': case '4': | |
1284 | case '5': case '6': case '7': case '8': case '9': | |
1285 | n = (n * 10) + (*cp++ - '0'); | |
1286 | continue; | |
1287 | ||
1288 | case 's': case 'w': case 'h': | |
025e61b9 KM |
1289 | if (n == 0) |
1290 | n = 1; | |
1291 | sp = swabshort(sp, n); | |
b4c41341 KS |
1292 | break; |
1293 | ||
1294 | case 'l': | |
025e61b9 KM |
1295 | if (n == 0) |
1296 | n = 1; | |
1297 | sp = swablong(sp, n); | |
1298 | break; | |
1299 | ||
1300 | default: /* Any other character, like 'b' counts as byte. */ | |
1301 | if (n == 0) | |
1302 | n = 1; | |
1303 | sp += n; | |
1304 | break; | |
b4c41341 | 1305 | } |
025e61b9 KM |
1306 | cp++; |
1307 | n = 0; | |
b4c41341 KS |
1308 | } |
1309 | } | |
025e61b9 | 1310 | |
451eb9a1 | 1311 | static u_long |
025e61b9 KM |
1312 | swabl(x) |
1313 | u_long x; | |
1314 | { | |
451eb9a1 | 1315 | swabst((u_char *)"l", (u_char *)&x); |
025e61b9 KM |
1316 | return (x); |
1317 | } |