Commit | Line | Data |
---|---|---|
8c5eec2f | 1 | /* |
e7a042ee KB |
2 | * Copyright (c) 1983, 1993 |
3 | * The Regents of the University of California. All rights reserved. | |
adb35f79 KB |
4 | * (c) UNIX System Laboratories, Inc. |
5 | * All or some portions of this file are derived from material licensed | |
6 | * to the University of California by American Telephone and Telegraph | |
7 | * Co. or Unix System Laboratories, Inc. and are reproduced herein with | |
8 | * the permission of UNIX System Laboratories, Inc. | |
b42768a6 | 9 | * |
70ab3c27 | 10 | * %sccs.include.redist.c% |
8c5eec2f | 11 | */ |
f78e116c | 12 | |
8c5eec2f | 13 | #ifndef lint |
9a0abc62 | 14 | static char sccsid[] = "@(#)tape.c 8.4 (Berkeley) %G%"; |
b42768a6 | 15 | #endif /* not lint */ |
ebd1f727 | 16 | |
451eb9a1 KB |
17 | #include <sys/param.h> |
18 | #include <sys/file.h> | |
f78e116c KM |
19 | #include <sys/ioctl.h> |
20 | #include <sys/mtio.h> | |
a7b24fe9 | 21 | #include <sys/stat.h> |
451eb9a1 KB |
22 | |
23 | #include <ufs/ufs/dinode.h> | |
24 | #include <protocols/dumprestore.h> | |
25 | ||
26 | #include <errno.h> | |
27 | #include <setjmp.h> | |
28 | #include <stdio.h> | |
29 | #include <stdlib.h> | |
30 | #include <string.h> | |
31 | #include <unistd.h> | |
32 | ||
33 | #include "restore.h" | |
34 | #include "extern.h" | |
7abf8d65 | 35 | #include "pathnames.h" |
2cb5dabb | 36 | |
bdeceadb | 37 | static long fssize = MAXBSIZE; |
2cb5dabb KM |
38 | static int mt = -1; |
39 | static int pipein = 0; | |
7eb08dfe | 40 | static char magtape[BUFSIZ]; |
e551fdb2 | 41 | static int blkcnt; |
c8fb0747 | 42 | static int numtrec; |
e551fdb2 | 43 | static char *tapebuf; |
2cb5dabb | 44 | static union u_spcl endoftapemark; |
2532f4a9 | 45 | static long blksread; /* blocks read since last header */ |
3b29a62c | 46 | static long tpblksread = 0; /* TP_BSIZE blocks read */ |
170639fd | 47 | static long tapesread; |
2cb5dabb KM |
48 | static jmp_buf restart; |
49 | static int gettingfile = 0; /* restart has a valid frame */ | |
2532f4a9 | 50 | static char *host = NULL; |
2cb5dabb KM |
51 | |
52 | static int ofile; | |
53 | static char *map; | |
54 | static char lnkbuf[MAXPATHLEN + 1]; | |
55 | static int pathlen; | |
f78e116c | 56 | |
dad5e0ef | 57 | int oldinofmt; /* old inode format conversion required */ |
b4c41341 KS |
58 | int Bcvt; /* Swap Bytes (for CCI or sun) */ |
59 | static int Qcvt; /* Swap quads (for sun) */ | |
2532f4a9 | 60 | |
e551fdb2 KM |
61 | #define FLUSHTAPEBUF() blkcnt = ntrec + 1 |
62 | ||
451eb9a1 KB |
63 | static void accthdr __P((struct s_spcl *)); |
64 | static int checksum __P((int *)); | |
65 | static void findinode __P((struct s_spcl *)); | |
66 | static void findtapeblksize __P((void)); | |
67 | static int gethead __P((struct s_spcl *)); | |
68 | static void readtape __P((char *)); | |
69 | static void setdumpnum __P((void)); | |
70 | static u_long swabl __P((u_long)); | |
71 | static u_char *swablong __P((u_char *, int)); | |
72 | static u_char *swabshort __P((u_char *, int)); | |
73 | static void terminateinput __P((void)); | |
74 | static void xtrfile __P((char *, long)); | |
75 | static void xtrlnkfile __P((char *, long)); | |
76 | static void xtrlnkskip __P((char *, long)); | |
77 | static void xtrmap __P((char *, long)); | |
78 | static void xtrmapskip __P((char *, long)); | |
79 | static void xtrskip __P((char *, long)); | |
80 | ||
f78e116c KM |
81 | /* |
82 | * Set up an input source | |
83 | */ | |
451eb9a1 | 84 | void |
f78e116c KM |
85 | setinput(source) |
86 | char *source; | |
87 | { | |
e551fdb2 | 88 | FLUSHTAPEBUF(); |
b97e998a KM |
89 | if (bflag) |
90 | newtapebuf(ntrec); | |
91 | else | |
92 | newtapebuf(NTREC > HIGHDENSITYTREC ? NTREC : HIGHDENSITYTREC); | |
9c695c61 | 93 | terminal = stdin; |
2532f4a9 | 94 | |
e9e7ecc4 | 95 | #ifdef RRESTORE |
2532f4a9 KM |
96 | if (index(source, ':')) { |
97 | host = source; | |
98 | source = index(host, ':'); | |
99 | *source++ = '\0'; | |
100 | if (rmthost(host) == 0) | |
101 | done(1); | |
102 | } else | |
103 | #endif | |
9c695c61 | 104 | if (strcmp(source, "-") == 0) { |
b677c5d7 KM |
105 | /* |
106 | * Since input is coming from a pipe we must establish | |
107 | * our own connection to the terminal. | |
108 | */ | |
7abf8d65 | 109 | terminal = fopen(_PATH_TTY, "r"); |
b677c5d7 | 110 | if (terminal == NULL) { |
451eb9a1 KB |
111 | (void)fprintf(stderr, "cannot open %s: %s\n", |
112 | _PATH_TTY, strerror(errno)); | |
7abf8d65 | 113 | terminal = fopen(_PATH_DEVNULL, "r"); |
b8eb5f1f | 114 | if (terminal == NULL) { |
451eb9a1 KB |
115 | (void)fprintf(stderr, "cannot open %s: %s\n", |
116 | _PATH_DEVNULL, strerror(errno)); | |
b8eb5f1f KM |
117 | done(1); |
118 | } | |
b677c5d7 | 119 | } |
2cb5dabb | 120 | pipein++; |
2cb5dabb | 121 | } |
2532f4a9 | 122 | setuid(getuid()); /* no longer need or want root privileges */ |
7eb08dfe | 123 | (void) strcpy(magtape, source); |
f78e116c KM |
124 | } |
125 | ||
451eb9a1 | 126 | void |
b97e998a KM |
127 | newtapebuf(size) |
128 | long size; | |
129 | { | |
e551fdb2 | 130 | static tapebufsize = -1; |
b97e998a KM |
131 | |
132 | ntrec = size; | |
e551fdb2 | 133 | if (size <= tapebufsize) |
b97e998a | 134 | return; |
e551fdb2 KM |
135 | if (tapebuf != NULL) |
136 | free(tapebuf); | |
451eb9a1 | 137 | tapebuf = malloc(size * TP_BSIZE); |
e551fdb2 | 138 | if (tapebuf == NULL) { |
b97e998a KM |
139 | fprintf(stderr, "Cannot allocate space for tape buffer\n"); |
140 | done(1); | |
141 | } | |
e551fdb2 | 142 | tapebufsize = size; |
b97e998a KM |
143 | } |
144 | ||
f78e116c KM |
145 | /* |
146 | * Verify that the tape drive can be accessed and | |
147 | * that it actually is a dump tape. | |
148 | */ | |
451eb9a1 | 149 | void |
f78e116c KM |
150 | setup() |
151 | { | |
2cb5dabb | 152 | int i, j, *ip; |
f78e116c | 153 | struct stat stbuf; |
f78e116c KM |
154 | |
155 | vprintf(stdout, "Verify tape and initialize maps\n"); | |
e9e7ecc4 | 156 | #ifdef RRESTORE |
2532f4a9 | 157 | if (host) |
202d77b7 | 158 | mt = rmtopen(magtape, 0); |
2532f4a9 KM |
159 | else |
160 | #endif | |
2cb5dabb KM |
161 | if (pipein) |
162 | mt = 0; | |
2532f4a9 | 163 | else |
451eb9a1 | 164 | mt = open(magtape, O_RDONLY, 0); |
2532f4a9 | 165 | if (mt < 0) { |
451eb9a1 | 166 | fprintf(stderr, "%s: %s\n", magtape, strerror(errno)); |
f78e116c KM |
167 | done(1); |
168 | } | |
768eb687 KM |
169 | volno = 1; |
170 | setdumpnum(); | |
e551fdb2 | 171 | FLUSHTAPEBUF(); |
b97e998a KM |
172 | if (!pipein && !bflag) |
173 | findtapeblksize(); | |
5c5f44c7 | 174 | if (gethead(&spcl) == FAIL) { |
e551fdb2 | 175 | blkcnt--; /* push back this block */ |
2532f4a9 | 176 | blksread--; |
3b29a62c | 177 | tpblksread--; |
f78e116c | 178 | cvtflag++; |
5c5f44c7 | 179 | if (gethead(&spcl) == FAIL) { |
f78e116c KM |
180 | fprintf(stderr, "Tape is not a dump tape\n"); |
181 | done(1); | |
182 | } | |
183 | fprintf(stderr, "Converting to new file system format.\n"); | |
184 | } | |
2cb5dabb KM |
185 | if (pipein) { |
186 | endoftapemark.s_spcl.c_magic = cvtflag ? OFS_MAGIC : NFS_MAGIC; | |
187 | endoftapemark.s_spcl.c_type = TS_END; | |
188 | ip = (int *)&endoftapemark; | |
189 | j = sizeof(union u_spcl) / sizeof(int); | |
190 | i = 0; | |
191 | do | |
192 | i += *ip++; | |
193 | while (--j); | |
194 | endoftapemark.s_spcl.c_checksum = CHECKSUM - i; | |
195 | } | |
b32320ae KM |
196 | if (vflag || command == 't') |
197 | printdumpinfo(); | |
f78e116c | 198 | dumptime = spcl.c_ddate; |
2cb5dabb | 199 | dumpdate = spcl.c_date; |
f78e116c | 200 | if (stat(".", &stbuf) < 0) { |
451eb9a1 | 201 | fprintf(stderr, "cannot stat .: %s\n", strerror(errno)); |
f78e116c KM |
202 | done(1); |
203 | } | |
bdeceadb KM |
204 | if (stbuf.st_blksize > 0 && stbuf.st_blksize <= MAXBSIZE) |
205 | fssize = stbuf.st_blksize; | |
206 | if (((fssize - 1) & fssize) != 0) { | |
f78e116c KM |
207 | fprintf(stderr, "bad block size %d\n", fssize); |
208 | done(1); | |
209 | } | |
e551fdb2 | 210 | if (spcl.c_volume != 1) { |
f78e116c KM |
211 | fprintf(stderr, "Tape is not volume 1 of the dump\n"); |
212 | done(1); | |
213 | } | |
e551fdb2 KM |
214 | if (gethead(&spcl) == FAIL) { |
215 | dprintf(stdout, "header read failed at %d blocks\n", blksread); | |
2cb5dabb | 216 | panic("no header after volume mark!\n"); |
e551fdb2 | 217 | } |
b32320ae | 218 | findinode(&spcl); |
e551fdb2 | 219 | if (spcl.c_type != TS_CLRI) { |
f78e116c KM |
220 | fprintf(stderr, "Cannot find file removal list\n"); |
221 | done(1); | |
222 | } | |
2cb5dabb | 223 | maxino = (spcl.c_count * TP_BSIZE * NBBY) + 1; |
768eb687 | 224 | dprintf(stdout, "maxino = %d\n", maxino); |
7851e15d | 225 | map = calloc((unsigned)1, (unsigned)howmany(maxino, NBBY)); |
451eb9a1 | 226 | if (map == NULL) |
f78e116c | 227 | panic("no memory for file removal list\n"); |
cf6db0ab | 228 | clrimap = map; |
f78e116c KM |
229 | curfile.action = USING; |
230 | getfile(xtrmap, xtrmapskip); | |
e551fdb2 | 231 | if (spcl.c_type != TS_BITS) { |
f78e116c KM |
232 | fprintf(stderr, "Cannot find file dump list\n"); |
233 | done(1); | |
234 | } | |
7851e15d | 235 | map = calloc((unsigned)1, (unsigned)howmany(maxino, NBBY)); |
f78e116c KM |
236 | if (map == (char *)NULL) |
237 | panic("no memory for file dump list\n"); | |
cf6db0ab | 238 | dumpmap = map; |
f78e116c KM |
239 | curfile.action = USING; |
240 | getfile(xtrmap, xtrmapskip); | |
f78e116c KM |
241 | } |
242 | ||
170639fd KM |
243 | /* |
244 | * Prompt user to load a new dump volume. | |
245 | * "Nextvol" is the next suggested volume to use. | |
246 | * This suggested volume is enforced when doing full | |
247 | * or incremental restores, but can be overrridden by | |
248 | * the user when only extracting a subset of the files. | |
249 | */ | |
451eb9a1 | 250 | void |
f78e116c KM |
251 | getvol(nextvol) |
252 | long nextvol; | |
253 | { | |
3b29a62c | 254 | long newvol, savecnt, wantnext, i; |
f78e116c KM |
255 | union u_spcl tmpspcl; |
256 | # define tmpbuf tmpspcl.s_spcl | |
b32320ae | 257 | char buf[TP_BSIZE]; |
f78e116c | 258 | |
a162cc0b | 259 | if (nextvol == 1) { |
170639fd | 260 | tapesread = 0; |
a162cc0b KM |
261 | gettingfile = 0; |
262 | } | |
2cb5dabb | 263 | if (pipein) { |
e108d3a2 | 264 | if (nextvol != 1) |
2cb5dabb | 265 | panic("Changing volumes on pipe input?\n"); |
e108d3a2 KM |
266 | if (volno == 1) |
267 | return; | |
268 | goto gethdr; | |
2cb5dabb KM |
269 | } |
270 | savecnt = blksread; | |
f78e116c | 271 | again: |
e108d3a2 KM |
272 | if (pipein) |
273 | done(1); /* pipes do not get a second chance */ | |
3b29a62c | 274 | if (command == 'R' || command == 'r' || curfile.action != SKIP) { |
f78e116c | 275 | newvol = nextvol; |
3b29a62c KM |
276 | wantnext = 1; |
277 | } else { | |
f78e116c | 278 | newvol = 0; |
3b29a62c KM |
279 | wantnext = 0; |
280 | } | |
f78e116c | 281 | while (newvol <= 0) { |
170639fd KM |
282 | if (tapesread == 0) { |
283 | fprintf(stderr, "%s%s%s%s%s", | |
284 | "You have not read any tapes yet.\n", | |
285 | "Unless you know which volume your", | |
286 | " file(s) are on you should start\n", | |
287 | "with the last volume and work", | |
b4c41341 | 288 | " towards towards the first.\n"); |
170639fd KM |
289 | } else { |
290 | fprintf(stderr, "You have read volumes"); | |
e551fdb2 | 291 | strcpy(buf, ": "); |
170639fd KM |
292 | for (i = 1; i < 32; i++) |
293 | if (tapesread & (1 << i)) { | |
e551fdb2 KM |
294 | fprintf(stderr, "%s%d", buf, i); |
295 | strcpy(buf, ", "); | |
170639fd KM |
296 | } |
297 | fprintf(stderr, "\n"); | |
298 | } | |
538cb7bb | 299 | do { |
b677c5d7 KM |
300 | fprintf(stderr, "Specify next volume #: "); |
301 | (void) fflush(stderr); | |
e551fdb2 KM |
302 | (void) fgets(buf, BUFSIZ, terminal); |
303 | } while (!feof(terminal) && buf[0] == '\n'); | |
b677c5d7 | 304 | if (feof(terminal)) |
538cb7bb | 305 | done(1); |
e551fdb2 | 306 | newvol = atoi(buf); |
f78e116c KM |
307 | if (newvol <= 0) { |
308 | fprintf(stderr, | |
309 | "Volume numbers are positive numerics\n"); | |
310 | } | |
311 | } | |
170639fd KM |
312 | if (newvol == volno) { |
313 | tapesread |= 1 << volno; | |
f78e116c | 314 | return; |
170639fd | 315 | } |
f78e116c | 316 | closemt(); |
7eb08dfe | 317 | fprintf(stderr, "Mount tape volume %d\n", newvol); |
eb317d51 KM |
318 | fprintf(stderr, "Enter ``none'' if there are no more tapes\n"); |
319 | fprintf(stderr, "otherwise enter tape name (default: %s) ", magtape); | |
b677c5d7 | 320 | (void) fflush(stderr); |
e551fdb2 | 321 | (void) fgets(buf, BUFSIZ, terminal); |
7eb08dfe KM |
322 | if (feof(terminal)) |
323 | done(1); | |
e551fdb2 | 324 | if (!strcmp(buf, "none\n")) { |
2657795e KM |
325 | terminateinput(); |
326 | return; | |
eb317d51 | 327 | } |
e551fdb2 KM |
328 | if (buf[0] != '\n') { |
329 | (void) strcpy(magtape, buf); | |
7eb08dfe KM |
330 | magtape[strlen(magtape) - 1] = '\0'; |
331 | } | |
e9e7ecc4 | 332 | #ifdef RRESTORE |
2532f4a9 KM |
333 | if (host) |
334 | mt = rmtopen(magtape, 0); | |
335 | else | |
f78e116c | 336 | #endif |
451eb9a1 | 337 | mt = open(magtape, O_RDONLY, 0); |
2532f4a9 KM |
338 | |
339 | if (mt == -1) { | |
7eb08dfe KM |
340 | fprintf(stderr, "Cannot open %s\n", magtape); |
341 | volno = -1; | |
f78e116c KM |
342 | goto again; |
343 | } | |
e108d3a2 | 344 | gethdr: |
f78e116c | 345 | volno = newvol; |
768eb687 | 346 | setdumpnum(); |
e551fdb2 KM |
347 | FLUSHTAPEBUF(); |
348 | if (gethead(&tmpbuf) == FAIL) { | |
349 | dprintf(stdout, "header read failed at %d blocks\n", blksread); | |
f78e116c KM |
350 | fprintf(stderr, "tape is not dump tape\n"); |
351 | volno = 0; | |
352 | goto again; | |
353 | } | |
41c95556 | 354 | if (tmpbuf.c_volume != volno) { |
f78e116c KM |
355 | fprintf(stderr, "Wrong volume (%d)\n", tmpbuf.c_volume); |
356 | volno = 0; | |
357 | goto again; | |
358 | } | |
2cb5dabb | 359 | if (tmpbuf.c_date != dumpdate || tmpbuf.c_ddate != dumptime) { |
3dbddecd KM |
360 | fprintf(stderr, "Wrong dump date\n\tgot: %s", |
361 | ctime(&tmpbuf.c_date)); | |
362 | fprintf(stderr, "\twanted: %s", ctime(&dumpdate)); | |
2cb5dabb KM |
363 | volno = 0; |
364 | goto again; | |
365 | } | |
170639fd | 366 | tapesread |= 1 << volno; |
5c5f44c7 | 367 | blksread = savecnt; |
3b29a62c KM |
368 | /* |
369 | * If continuing from the previous volume, skip over any | |
370 | * blocks read already at the end of the previous volume. | |
371 | * | |
372 | * If coming to this volume at random, skip to the beginning | |
373 | * of the next record. | |
374 | */ | |
375 | dprintf(stdout, "read %ld recs, tape starts with %ld\n", | |
376 | tpblksread, tmpbuf.c_firstrec); | |
377 | if (tmpbuf.c_type == TS_TAPE && (tmpbuf.c_flags & DR_NEWHEADER)) { | |
378 | if (!wantnext) { | |
379 | tpblksread = tmpbuf.c_firstrec; | |
380 | for (i = tmpbuf.c_count; i > 0; i--) | |
381 | readtape(buf); | |
382 | } else if (tmpbuf.c_firstrec > 0 && | |
383 | tmpbuf.c_firstrec < tpblksread - 1) { | |
384 | /* | |
385 | * -1 since we've read the volume header | |
386 | */ | |
387 | i = tpblksread - tmpbuf.c_firstrec - 1; | |
388 | dprintf(stderr, "Skipping %d duplicate record%s.\n", | |
389 | i, i > 1 ? "s" : ""); | |
390 | while (--i >= 0) | |
391 | readtape(buf); | |
392 | } | |
393 | } | |
f78e116c KM |
394 | if (curfile.action == USING) { |
395 | if (volno == 1) | |
396 | panic("active file into volume 1\n"); | |
397 | return; | |
398 | } | |
b32320ae KM |
399 | /* |
400 | * Skip up to the beginning of the next record | |
401 | */ | |
8d412b7c | 402 | if (tmpbuf.c_type == TS_TAPE && (tmpbuf.c_flags & DR_NEWHEADER)) |
b32320ae KM |
403 | for (i = tmpbuf.c_count; i > 0; i--) |
404 | readtape(buf); | |
5c5f44c7 | 405 | (void) gethead(&spcl); |
b32320ae | 406 | findinode(&spcl); |
f78e116c KM |
407 | if (gettingfile) { |
408 | gettingfile = 0; | |
409 | longjmp(restart, 1); | |
410 | } | |
411 | } | |
412 | ||
2657795e KM |
413 | /* |
414 | * Handle unexpected EOF. | |
415 | */ | |
451eb9a1 | 416 | static void |
2657795e KM |
417 | terminateinput() |
418 | { | |
419 | ||
420 | if (gettingfile && curfile.action == USING) { | |
421 | printf("Warning: %s %s\n", | |
422 | "End-of-input encountered while extracting", curfile.name); | |
423 | } | |
424 | curfile.name = "<name unknown>"; | |
425 | curfile.action = UNKNOWN; | |
451eb9a1 | 426 | curfile.dip = NULL; |
2657795e KM |
427 | curfile.ino = maxino; |
428 | if (gettingfile) { | |
429 | gettingfile = 0; | |
430 | longjmp(restart, 1); | |
431 | } | |
432 | } | |
433 | ||
768eb687 KM |
434 | /* |
435 | * handle multiple dumps per tape by skipping forward to the | |
436 | * appropriate one. | |
437 | */ | |
451eb9a1 | 438 | static void |
768eb687 KM |
439 | setdumpnum() |
440 | { | |
441 | struct mtop tcom; | |
442 | ||
443 | if (dumpnum == 1 || volno != 1) | |
444 | return; | |
445 | if (pipein) { | |
446 | fprintf(stderr, "Cannot have multiple dumps on pipe input\n"); | |
447 | done(1); | |
448 | } | |
449 | tcom.mt_op = MTFSF; | |
450 | tcom.mt_count = dumpnum - 1; | |
e9e7ecc4 | 451 | #ifdef RRESTORE |
2532f4a9 KM |
452 | if (host) |
453 | rmtioctl(MTFSF, dumpnum - 1); | |
454 | else | |
768eb687 | 455 | #endif |
2532f4a9 | 456 | if (ioctl(mt, (int)MTIOCTOP, (char *)&tcom) < 0) |
451eb9a1 | 457 | fprintf(stderr, "ioctl MTFSF: %s\n", strerror(errno)); |
768eb687 KM |
458 | } |
459 | ||
451eb9a1 | 460 | void |
b32320ae KM |
461 | printdumpinfo() |
462 | { | |
b32320ae | 463 | fprintf(stdout, "Dump date: %s", ctime(&spcl.c_date)); |
f441de4a KM |
464 | fprintf(stdout, "Dumped from: %s", |
465 | (spcl.c_ddate == 0) ? "the epoch\n" : ctime(&spcl.c_ddate)); | |
b32320ae KM |
466 | if (spcl.c_host[0] == '\0') |
467 | return; | |
468 | fprintf(stderr, "Level %d dump of %s on %s:%s\n", | |
469 | spcl.c_level, spcl.c_filesys, spcl.c_host, spcl.c_dev); | |
470 | fprintf(stderr, "Label: %s\n", spcl.c_label); | |
471 | } | |
472 | ||
451eb9a1 | 473 | int |
f78e116c KM |
474 | extractfile(name) |
475 | char *name; | |
476 | { | |
9a0abc62 KM |
477 | int flags; |
478 | mode_t mode; | |
165b1daf | 479 | struct timeval timep[2]; |
f78e116c | 480 | struct entry *ep; |
f78e116c KM |
481 | |
482 | curfile.name = name; | |
483 | curfile.action = USING; | |
4f57cc9f KM |
484 | timep[0].tv_sec = curfile.dip->di_atime.ts_sec; |
485 | timep[0].tv_usec = curfile.dip->di_atime.ts_nsec / 1000; | |
486 | timep[1].tv_sec = curfile.dip->di_mtime.ts_sec; | |
487 | timep[1].tv_usec = curfile.dip->di_mtime.ts_nsec / 1000; | |
f78e116c | 488 | mode = curfile.dip->di_mode; |
9a0abc62 | 489 | flags = curfile.dip->di_flags; |
f78e116c KM |
490 | switch (mode & IFMT) { |
491 | ||
492 | default: | |
493 | fprintf(stderr, "%s: unknown file mode 0%o\n", name, mode); | |
494 | skipfile(); | |
495 | return (FAIL); | |
496 | ||
74e940f5 KM |
497 | case IFSOCK: |
498 | vprintf(stdout, "skipped socket %s\n", name); | |
499 | skipfile(); | |
500 | return (GOOD); | |
501 | ||
f78e116c KM |
502 | case IFDIR: |
503 | if (mflag) { | |
504 | ep = lookupname(name); | |
451eb9a1 | 505 | if (ep == NULL || ep->e_flags & EXTRACT) |
f78e116c KM |
506 | panic("unextracted directory %s\n", name); |
507 | skipfile(); | |
508 | return (GOOD); | |
509 | } | |
510 | vprintf(stdout, "extract file %s\n", name); | |
511 | return (genliteraldir(name, curfile.ino)); | |
512 | ||
513 | case IFLNK: | |
514 | lnkbuf[0] = '\0'; | |
515 | pathlen = 0; | |
516 | getfile(xtrlnkfile, xtrlnkskip); | |
517 | if (pathlen == 0) { | |
518 | vprintf(stdout, | |
519 | "%s: zero length symbolic link (ignored)\n", name); | |
bdeceadb KM |
520 | return (GOOD); |
521 | } | |
522 | return (linkit(lnkbuf, name, SYMLINK)); | |
f78e116c KM |
523 | |
524 | case IFCHR: | |
525 | case IFBLK: | |
526 | vprintf(stdout, "extract special file %s\n", name); | |
414c4f09 KM |
527 | if (Nflag) { |
528 | skipfile(); | |
529 | return (GOOD); | |
530 | } | |
f78e116c | 531 | if (mknod(name, mode, (int)curfile.dip->di_rdev) < 0) { |
451eb9a1 KB |
532 | fprintf(stderr, "%s: cannot create special file: %s\n", |
533 | name, strerror(errno)); | |
f78e116c KM |
534 | skipfile(); |
535 | return (FAIL); | |
536 | } | |
768eb687 KM |
537 | (void) chown(name, curfile.dip->di_uid, curfile.dip->di_gid); |
538 | (void) chmod(name, mode); | |
9a0abc62 KM |
539 | (void) chflags(name, flags); |
540 | skipfile(); | |
541 | utimes(name, timep); | |
542 | return (GOOD); | |
543 | ||
544 | case IFIFO: | |
545 | vprintf(stdout, "extract fifo %s\n", name); | |
546 | if (Nflag) { | |
547 | skipfile(); | |
548 | return (GOOD); | |
549 | } | |
550 | if (mkfifo(name, mode) < 0) { | |
551 | fprintf(stderr, "%s: cannot create fifo: %s\n", | |
552 | name, strerror(errno)); | |
553 | skipfile(); | |
554 | return (FAIL); | |
555 | } | |
556 | (void) chown(name, curfile.dip->di_uid, curfile.dip->di_gid); | |
557 | (void) chmod(name, mode); | |
558 | (void) chflags(name, flags); | |
f78e116c | 559 | skipfile(); |
165b1daf | 560 | utimes(name, timep); |
f78e116c KM |
561 | return (GOOD); |
562 | ||
563 | case IFREG: | |
564 | vprintf(stdout, "extract file %s\n", name); | |
414c4f09 KM |
565 | if (Nflag) { |
566 | skipfile(); | |
567 | return (GOOD); | |
568 | } | |
15aeb519 | 569 | if ((ofile = creat(name, 0666)) < 0) { |
451eb9a1 KB |
570 | fprintf(stderr, "%s: cannot create file: %s\n", |
571 | name, strerror(errno)); | |
f78e116c KM |
572 | skipfile(); |
573 | return (FAIL); | |
574 | } | |
768eb687 KM |
575 | (void) fchown(ofile, curfile.dip->di_uid, curfile.dip->di_gid); |
576 | (void) fchmod(ofile, mode); | |
9a0abc62 | 577 | (void) fchflags(ofile, flags); |
f78e116c | 578 | getfile(xtrfile, xtrskip); |
768eb687 | 579 | (void) close(ofile); |
165b1daf | 580 | utimes(name, timep); |
f78e116c KM |
581 | return (GOOD); |
582 | } | |
583 | /* NOTREACHED */ | |
584 | } | |
585 | ||
e108d3a2 KM |
586 | /* |
587 | * skip over bit maps on the tape | |
588 | */ | |
451eb9a1 | 589 | void |
e108d3a2 KM |
590 | skipmaps() |
591 | { | |
592 | ||
e551fdb2 | 593 | while (spcl.c_type == TS_BITS || spcl.c_type == TS_CLRI) |
e108d3a2 KM |
594 | skipfile(); |
595 | } | |
596 | ||
597 | /* | |
598 | * skip over a file on the tape | |
599 | */ | |
451eb9a1 | 600 | void |
f78e116c KM |
601 | skipfile() |
602 | { | |
f78e116c KM |
603 | |
604 | curfile.action = SKIP; | |
e551fdb2 | 605 | getfile(xtrnull, xtrnull); |
f78e116c KM |
606 | } |
607 | ||
608 | /* | |
e551fdb2 KM |
609 | * Extract a file from the tape. |
610 | * When an allocated block is found it is passed to the fill function; | |
611 | * when an unallocated block (hole) is found, a zeroed buffer is passed | |
612 | * to the skip function. | |
f78e116c | 613 | */ |
451eb9a1 | 614 | void |
e551fdb2 | 615 | getfile(fill, skip) |
451eb9a1 KB |
616 | void (*fill) __P((char *, long)); |
617 | void (*skip) __P((char *, long)); | |
f78e116c KM |
618 | { |
619 | register int i; | |
620 | int curblk = 0; | |
dad5e0ef | 621 | long size = spcl.c_dinode.di_size; |
f78e116c KM |
622 | static char clearedbuf[MAXBSIZE]; |
623 | char buf[MAXBSIZE / TP_BSIZE][TP_BSIZE]; | |
4f8ea093 | 624 | char junk[TP_BSIZE]; |
f78e116c | 625 | |
e551fdb2 | 626 | if (spcl.c_type == TS_END) |
f78e116c | 627 | panic("ran off end of tape\n"); |
e551fdb2 | 628 | if (spcl.c_magic != NFS_MAGIC) |
f78e116c | 629 | panic("not at beginning of a file\n"); |
e108d3a2 | 630 | if (!gettingfile && setjmp(restart) != 0) |
f78e116c KM |
631 | return; |
632 | gettingfile++; | |
633 | loop: | |
634 | for (i = 0; i < spcl.c_count; i++) { | |
635 | if (spcl.c_addr[i]) { | |
636 | readtape(&buf[curblk++][0]); | |
637 | if (curblk == fssize / TP_BSIZE) { | |
451eb9a1 | 638 | (*fill)((char *)buf, size > TP_BSIZE ? |
f78e116c KM |
639 | (long) (fssize) : |
640 | (curblk - 1) * TP_BSIZE + size); | |
641 | curblk = 0; | |
642 | } | |
643 | } else { | |
644 | if (curblk > 0) { | |
451eb9a1 | 645 | (*fill)((char *)buf, size > TP_BSIZE ? |
f78e116c KM |
646 | (long) (curblk * TP_BSIZE) : |
647 | (curblk - 1) * TP_BSIZE + size); | |
648 | curblk = 0; | |
649 | } | |
e551fdb2 | 650 | (*skip)(clearedbuf, size > TP_BSIZE ? |
f78e116c KM |
651 | (long) TP_BSIZE : size); |
652 | } | |
4f8ea093 KM |
653 | if ((size -= TP_BSIZE) <= 0) { |
654 | for (i++; i < spcl.c_count; i++) | |
655 | if (spcl.c_addr[i]) | |
656 | readtape(junk); | |
9f13f26d | 657 | break; |
4f8ea093 | 658 | } |
f78e116c | 659 | } |
e551fdb2 KM |
660 | if (gethead(&spcl) == GOOD && size > 0) { |
661 | if (spcl.c_type == TS_ADDR) | |
9f13f26d | 662 | goto loop; |
e551fdb2 KM |
663 | dprintf(stdout, |
664 | "Missing address (header) block for %s at %d blocks\n", | |
665 | curfile.name, blksread); | |
f78e116c | 666 | } |
9f13f26d | 667 | if (curblk > 0) |
451eb9a1 | 668 | (*fill)((char *)buf, (curblk * TP_BSIZE) + size); |
b32320ae | 669 | findinode(&spcl); |
f78e116c KM |
670 | gettingfile = 0; |
671 | } | |
672 | ||
673 | /* | |
e551fdb2 | 674 | * Write out the next block of a file. |
f78e116c | 675 | */ |
451eb9a1 | 676 | static void |
f78e116c KM |
677 | xtrfile(buf, size) |
678 | char *buf; | |
679 | long size; | |
680 | { | |
681 | ||
414c4f09 KM |
682 | if (Nflag) |
683 | return; | |
f78e116c | 684 | if (write(ofile, buf, (int) size) == -1) { |
451eb9a1 KB |
685 | fprintf(stderr, |
686 | "write error extracting inode %d, name %s\nwrite: %s\n", | |
687 | curfile.ino, curfile.name, strerror(errno)); | |
f78e116c KM |
688 | done(1); |
689 | } | |
690 | } | |
691 | ||
e551fdb2 KM |
692 | /* |
693 | * Skip over a hole in a file. | |
694 | */ | |
695 | /* ARGSUSED */ | |
451eb9a1 | 696 | static void |
f78e116c KM |
697 | xtrskip(buf, size) |
698 | char *buf; | |
699 | long size; | |
700 | { | |
701 | ||
e0b80860 | 702 | if (lseek(ofile, size, SEEK_CUR) == -1) { |
451eb9a1 KB |
703 | fprintf(stderr, |
704 | "seek error extracting inode %d, name %s\nlseek: %s\n", | |
705 | curfile.ino, curfile.name, strerror(errno)); | |
f78e116c KM |
706 | done(1); |
707 | } | |
708 | } | |
709 | ||
e551fdb2 KM |
710 | /* |
711 | * Collect the next block of a symbolic link. | |
712 | */ | |
451eb9a1 | 713 | static void |
f78e116c KM |
714 | xtrlnkfile(buf, size) |
715 | char *buf; | |
716 | long size; | |
717 | { | |
718 | ||
719 | pathlen += size; | |
720 | if (pathlen > MAXPATHLEN) { | |
721 | fprintf(stderr, "symbolic link name: %s->%s%s; too long %d\n", | |
722 | curfile.name, lnkbuf, buf, pathlen); | |
723 | done(1); | |
724 | } | |
538cb7bb | 725 | (void) strcat(lnkbuf, buf); |
f78e116c KM |
726 | } |
727 | ||
e551fdb2 KM |
728 | /* |
729 | * Skip over a hole in a symbolic link (should never happen). | |
730 | */ | |
731 | /* ARGSUSED */ | |
451eb9a1 | 732 | static void |
f78e116c KM |
733 | xtrlnkskip(buf, size) |
734 | char *buf; | |
735 | long size; | |
736 | { | |
737 | ||
f78e116c KM |
738 | fprintf(stderr, "unallocated block in symbolic link %s\n", |
739 | curfile.name); | |
740 | done(1); | |
741 | } | |
742 | ||
e551fdb2 KM |
743 | /* |
744 | * Collect the next block of a bit map. | |
745 | */ | |
451eb9a1 | 746 | static void |
f78e116c KM |
747 | xtrmap(buf, size) |
748 | char *buf; | |
749 | long size; | |
750 | { | |
751 | ||
752 | bcopy(buf, map, size); | |
cf6db0ab | 753 | map += size; |
f78e116c KM |
754 | } |
755 | ||
e551fdb2 KM |
756 | /* |
757 | * Skip over a hole in a bit map (should never happen). | |
758 | */ | |
759 | /* ARGSUSED */ | |
451eb9a1 | 760 | static void |
f78e116c KM |
761 | xtrmapskip(buf, size) |
762 | char *buf; | |
763 | long size; | |
764 | { | |
765 | ||
f78e116c | 766 | panic("hole in map\n"); |
cf6db0ab | 767 | map += size; |
f78e116c KM |
768 | } |
769 | ||
e551fdb2 KM |
770 | /* |
771 | * Noop, when an extraction function is not needed. | |
772 | */ | |
773 | /* ARGSUSED */ | |
451eb9a1 | 774 | void |
e551fdb2 KM |
775 | xtrnull(buf, size) |
776 | char *buf; | |
777 | long size; | |
778 | { | |
779 | ||
780 | return; | |
781 | } | |
f78e116c KM |
782 | |
783 | /* | |
e551fdb2 KM |
784 | * Read TP_BSIZE blocks from the input. |
785 | * Handle read errors, and end of media. | |
f78e116c | 786 | */ |
451eb9a1 | 787 | static void |
e551fdb2 KM |
788 | readtape(buf) |
789 | char *buf; | |
f78e116c | 790 | { |
e551fdb2 KM |
791 | long rd, newvol, i; |
792 | int cnt, seek_failed; | |
f78e116c | 793 | |
e551fdb2 KM |
794 | if (blkcnt < numtrec) { |
795 | bcopy(&tapebuf[(blkcnt++ * TP_BSIZE)], buf, (long)TP_BSIZE); | |
b97e998a | 796 | blksread++; |
3b29a62c | 797 | tpblksread++; |
b97e998a KM |
798 | return; |
799 | } | |
800 | for (i = 0; i < ntrec; i++) | |
e551fdb2 | 801 | ((struct s_spcl *)&tapebuf[i * TP_BSIZE])->c_magic = 0; |
c8fb0747 KM |
802 | if (numtrec == 0) |
803 | numtrec = ntrec; | |
2532f4a9 | 804 | cnt = ntrec * TP_BSIZE; |
b97e998a KM |
805 | rd = 0; |
806 | getmore: | |
e9e7ecc4 | 807 | #ifdef RRESTORE |
2532f4a9 | 808 | if (host) |
e551fdb2 | 809 | i = rmtread(&tapebuf[rd], cnt); |
2532f4a9 | 810 | else |
f78e116c | 811 | #endif |
e551fdb2 | 812 | i = read(mt, &tapebuf[rd], cnt); |
c8fb0747 KM |
813 | /* |
814 | * Check for mid-tape short read error. | |
2532f4a9 | 815 | * If found, skip rest of buffer and start with the next. |
c8fb0747 | 816 | */ |
2532f4a9 KM |
817 | if (!pipein && numtrec < ntrec && i > 0) { |
818 | dprintf(stdout, "mid-media short read error.\n"); | |
c8fb0747 | 819 | numtrec = ntrec; |
c8fb0747 KM |
820 | } |
821 | /* | |
822 | * Handle partial block read. | |
823 | */ | |
4f57cc9f KM |
824 | if (pipein && i == 0 && rd > 0) |
825 | i = rd; | |
826 | else if (i > 0 && i != ntrec * TP_BSIZE) { | |
b97e998a | 827 | if (pipein) { |
74025ab9 KM |
828 | rd += i; |
829 | cnt -= i; | |
830 | if (cnt > 0) | |
831 | goto getmore; | |
832 | i = rd; | |
b97e998a | 833 | } else { |
2532f4a9 KM |
834 | /* |
835 | * Short read. Process the blocks read. | |
836 | */ | |
b97e998a | 837 | if (i % TP_BSIZE != 0) |
2532f4a9 KM |
838 | vprintf(stdout, |
839 | "partial block read: %d should be %d\n", | |
840 | i, ntrec * TP_BSIZE); | |
c8fb0747 | 841 | numtrec = i / TP_BSIZE; |
74025ab9 | 842 | } |
b97e998a | 843 | } |
c8fb0747 KM |
844 | /* |
845 | * Handle read error. | |
846 | */ | |
b97e998a KM |
847 | if (i < 0) { |
848 | fprintf(stderr, "Tape read error while "); | |
849 | switch (curfile.action) { | |
850 | default: | |
851 | fprintf(stderr, "trying to set up tape\n"); | |
852 | break; | |
853 | case UNKNOWN: | |
bf7abb47 | 854 | fprintf(stderr, "trying to resynchronize\n"); |
b97e998a KM |
855 | break; |
856 | case USING: | |
857 | fprintf(stderr, "restoring %s\n", curfile.name); | |
858 | break; | |
859 | case SKIP: | |
860 | fprintf(stderr, "skipping over inode %d\n", | |
861 | curfile.ino); | |
862 | break; | |
863 | } | |
864 | if (!yflag && !reply("continue")) | |
865 | done(1); | |
e551fdb2 KM |
866 | i = ntrec * TP_BSIZE; |
867 | bzero(tapebuf, i); | |
e9e7ecc4 | 868 | #ifdef RRESTORE |
2532f4a9 KM |
869 | if (host) |
870 | seek_failed = (rmtseek(i, 1) < 0); | |
871 | else | |
f78e116c | 872 | #endif |
451eb9a1 | 873 | seek_failed = (lseek(mt, i, SEEK_CUR) == (off_t)-1); |
2532f4a9 KM |
874 | |
875 | if (seek_failed) { | |
451eb9a1 KB |
876 | fprintf(stderr, |
877 | "continuation failed: %s\n", strerror(errno)); | |
b97e998a | 878 | done(1); |
f78e116c | 879 | } |
b97e998a | 880 | } |
c8fb0747 KM |
881 | /* |
882 | * Handle end of tape. | |
883 | */ | |
b97e998a | 884 | if (i == 0) { |
2532f4a9 | 885 | vprintf(stdout, "End-of-tape encountered\n"); |
ad073f89 KM |
886 | if (!pipein) { |
887 | newvol = volno + 1; | |
888 | volno = 0; | |
c8fb0747 | 889 | numtrec = 0; |
ad073f89 | 890 | getvol(newvol); |
e551fdb2 | 891 | readtape(buf); |
f78e116c KM |
892 | return; |
893 | } | |
ad073f89 KM |
894 | if (rd % TP_BSIZE != 0) |
895 | panic("partial block read: %d should be %d\n", | |
896 | rd, ntrec * TP_BSIZE); | |
2657795e | 897 | terminateinput(); |
e551fdb2 | 898 | bcopy((char *)&endoftapemark, &tapebuf[rd], (long)TP_BSIZE); |
f78e116c | 899 | } |
e551fdb2 KM |
900 | blkcnt = 0; |
901 | bcopy(&tapebuf[(blkcnt++ * TP_BSIZE)], buf, (long)TP_BSIZE); | |
2cb5dabb | 902 | blksread++; |
3b29a62c | 903 | tpblksread++; |
f78e116c KM |
904 | } |
905 | ||
451eb9a1 | 906 | static void |
b97e998a KM |
907 | findtapeblksize() |
908 | { | |
909 | register long i; | |
910 | ||
911 | for (i = 0; i < ntrec; i++) | |
e551fdb2 KM |
912 | ((struct s_spcl *)&tapebuf[i * TP_BSIZE])->c_magic = 0; |
913 | blkcnt = 0; | |
b97e998a | 914 | #ifdef RRESTORE |
2532f4a9 | 915 | if (host) |
e551fdb2 | 916 | i = rmtread(tapebuf, ntrec * TP_BSIZE); |
2532f4a9 | 917 | else |
b97e998a | 918 | #endif |
e551fdb2 | 919 | i = read(mt, tapebuf, ntrec * TP_BSIZE); |
2532f4a9 | 920 | |
b97e998a | 921 | if (i <= 0) { |
451eb9a1 | 922 | fprintf(stderr, "tape read error: %s\n", strerror(errno)); |
b97e998a KM |
923 | done(1); |
924 | } | |
925 | if (i % TP_BSIZE != 0) { | |
926 | fprintf(stderr, "Tape block size (%d) %s (%d)\n", | |
927 | i, "is not a multiple of dump block size", TP_BSIZE); | |
928 | done(1); | |
929 | } | |
930 | ntrec = i / TP_BSIZE; | |
c8fb0747 | 931 | numtrec = ntrec; |
b97e998a KM |
932 | vprintf(stdout, "Tape block size is %d\n", ntrec); |
933 | } | |
934 | ||
451eb9a1 | 935 | void |
f78e116c KM |
936 | closemt() |
937 | { | |
e551fdb2 | 938 | |
f78e116c KM |
939 | if (mt < 0) |
940 | return; | |
e9e7ecc4 | 941 | #ifdef RRESTORE |
2532f4a9 KM |
942 | if (host) |
943 | rmtclose(); | |
944 | else | |
f78e116c | 945 | #endif |
2532f4a9 | 946 | (void) close(mt); |
f78e116c KM |
947 | } |
948 | ||
f78e116c | 949 | /* |
e551fdb2 KM |
950 | * Read the next block from the tape. |
951 | * Check to see if it is one of several vintage headers. | |
952 | * If it is an old style header, convert it to a new style header. | |
953 | * If it is not any valid header, return an error. | |
f78e116c | 954 | */ |
451eb9a1 | 955 | static int |
f78e116c KM |
956 | gethead(buf) |
957 | struct s_spcl *buf; | |
958 | { | |
eb317d51 | 959 | long i; |
6e5750fa KM |
960 | union { |
961 | quad_t qval; | |
962 | long val[2]; | |
963 | } qcvt; | |
f78e116c KM |
964 | union u_ospcl { |
965 | char dummy[TP_BSIZE]; | |
966 | struct s_ospcl { | |
2cb5dabb KM |
967 | long c_type; |
968 | long c_date; | |
969 | long c_ddate; | |
970 | long c_volume; | |
971 | long c_tapea; | |
cf6db0ab | 972 | u_short c_inumber; |
2cb5dabb KM |
973 | long c_magic; |
974 | long c_checksum; | |
f78e116c KM |
975 | struct odinode { |
976 | unsigned short odi_mode; | |
cf6db0ab KM |
977 | u_short odi_nlink; |
978 | u_short odi_uid; | |
979 | u_short odi_gid; | |
2cb5dabb KM |
980 | long odi_size; |
981 | long odi_rdev; | |
f78e116c | 982 | char odi_addr[36]; |
2cb5dabb KM |
983 | long odi_atime; |
984 | long odi_mtime; | |
985 | long odi_ctime; | |
f78e116c | 986 | } c_dinode; |
2cb5dabb KM |
987 | long c_count; |
988 | char c_addr[256]; | |
f78e116c KM |
989 | } s_ospcl; |
990 | } u_ospcl; | |
991 | ||
992 | if (!cvtflag) { | |
993 | readtape((char *)buf); | |
b4c41341 KS |
994 | if (buf->c_magic != NFS_MAGIC) { |
995 | if (swabl(buf->c_magic) != NFS_MAGIC) | |
996 | return (FAIL); | |
997 | if (!Bcvt) { | |
998 | vprintf(stdout, "Note: Doing Byte swapping\n"); | |
999 | Bcvt = 1; | |
1000 | } | |
1001 | } | |
1002 | if (checksum((int *)buf) == FAIL) | |
1003 | return (FAIL); | |
1004 | if (Bcvt) | |
451eb9a1 | 1005 | swabst((u_char *)"8l4s31l", (u_char *)buf); |
5c5f44c7 | 1006 | goto good; |
f78e116c KM |
1007 | } |
1008 | readtape((char *)(&u_ospcl.s_ospcl)); | |
1009 | bzero((char *)buf, (long)TP_BSIZE); | |
1010 | buf->c_type = u_ospcl.s_ospcl.c_type; | |
1011 | buf->c_date = u_ospcl.s_ospcl.c_date; | |
1012 | buf->c_ddate = u_ospcl.s_ospcl.c_ddate; | |
1013 | buf->c_volume = u_ospcl.s_ospcl.c_volume; | |
1014 | buf->c_tapea = u_ospcl.s_ospcl.c_tapea; | |
1015 | buf->c_inumber = u_ospcl.s_ospcl.c_inumber; | |
1016 | buf->c_checksum = u_ospcl.s_ospcl.c_checksum; | |
1017 | buf->c_magic = u_ospcl.s_ospcl.c_magic; | |
1018 | buf->c_dinode.di_mode = u_ospcl.s_ospcl.c_dinode.odi_mode; | |
1019 | buf->c_dinode.di_nlink = u_ospcl.s_ospcl.c_dinode.odi_nlink; | |
1020 | buf->c_dinode.di_uid = u_ospcl.s_ospcl.c_dinode.odi_uid; | |
1021 | buf->c_dinode.di_gid = u_ospcl.s_ospcl.c_dinode.odi_gid; | |
1022 | buf->c_dinode.di_size = u_ospcl.s_ospcl.c_dinode.odi_size; | |
1023 | buf->c_dinode.di_rdev = u_ospcl.s_ospcl.c_dinode.odi_rdev; | |
4f57cc9f KM |
1024 | buf->c_dinode.di_atime.ts_sec = u_ospcl.s_ospcl.c_dinode.odi_atime; |
1025 | buf->c_dinode.di_mtime.ts_sec = u_ospcl.s_ospcl.c_dinode.odi_mtime; | |
1026 | buf->c_dinode.di_ctime.ts_sec = u_ospcl.s_ospcl.c_dinode.odi_ctime; | |
f78e116c | 1027 | buf->c_count = u_ospcl.s_ospcl.c_count; |
2cb5dabb | 1028 | bcopy(u_ospcl.s_ospcl.c_addr, buf->c_addr, (long)256); |
f78e116c | 1029 | if (u_ospcl.s_ospcl.c_magic != OFS_MAGIC || |
5c5f44c7 | 1030 | checksum((int *)(&u_ospcl.s_ospcl)) == FAIL) |
2cb5dabb | 1031 | return(FAIL); |
f78e116c | 1032 | buf->c_magic = NFS_MAGIC; |
5c5f44c7 KM |
1033 | |
1034 | good: | |
15822e16 | 1035 | if ((buf->c_dinode.di_size == 0 || buf->c_dinode.di_size > 0xfffffff) && |
025e61b9 | 1036 | (buf->c_dinode.di_mode & IFMT) == IFDIR && Qcvt == 0) { |
6e5750fa KM |
1037 | qcvt.qval = buf->c_dinode.di_size; |
1038 | if (qcvt.val[0] || qcvt.val[1]) { | |
b4c41341 KS |
1039 | printf("Note: Doing Quad swapping\n"); |
1040 | Qcvt = 1; | |
1041 | } | |
1042 | } | |
1043 | if (Qcvt) { | |
6e5750fa KM |
1044 | qcvt.qval = buf->c_dinode.di_size; |
1045 | i = qcvt.val[1]; | |
1046 | qcvt.val[1] = qcvt.val[0]; | |
1047 | qcvt.val[0] = i; | |
087b1e18 | 1048 | buf->c_dinode.di_size = qcvt.qval; |
b4c41341 | 1049 | } |
2532f4a9 | 1050 | |
5c5f44c7 KM |
1051 | switch (buf->c_type) { |
1052 | ||
1053 | case TS_CLRI: | |
1054 | case TS_BITS: | |
1055 | /* | |
1056 | * Have to patch up missing information in bit map headers | |
1057 | */ | |
1058 | buf->c_inumber = 0; | |
1059 | buf->c_dinode.di_size = buf->c_count * TP_BSIZE; | |
1060 | for (i = 0; i < buf->c_count; i++) | |
1061 | buf->c_addr[i]++; | |
1062 | break; | |
1063 | ||
1064 | case TS_TAPE: | |
dad5e0ef KM |
1065 | if ((buf->c_flags & DR_NEWINODEFMT) == 0) |
1066 | oldinofmt = 1; | |
1067 | /* fall through */ | |
5c5f44c7 KM |
1068 | case TS_END: |
1069 | buf->c_inumber = 0; | |
1070 | break; | |
1071 | ||
1072 | case TS_INODE: | |
1073 | case TS_ADDR: | |
1074 | break; | |
1075 | ||
1076 | default: | |
1077 | panic("gethead: unknown inode type %d\n", buf->c_type); | |
1078 | break; | |
1079 | } | |
dad5e0ef KM |
1080 | /* |
1081 | * If we are restoring a filesystem with old format inodes, | |
1082 | * copy the uid/gid to the new location. | |
1083 | */ | |
1084 | if (oldinofmt) { | |
1085 | buf->c_dinode.di_uid = buf->c_dinode.di_ouid; | |
1086 | buf->c_dinode.di_gid = buf->c_dinode.di_ogid; | |
1087 | } | |
2cb5dabb KM |
1088 | if (dflag) |
1089 | accthdr(buf); | |
1090 | return(GOOD); | |
1091 | } | |
1092 | ||
1093 | /* | |
1094 | * Check that a header is where it belongs and predict the next header | |
1095 | */ | |
451eb9a1 | 1096 | static void |
2cb5dabb KM |
1097 | accthdr(header) |
1098 | struct s_spcl *header; | |
1099 | { | |
7851e15d | 1100 | static ino_t previno = 0x7fffffff; |
2cb5dabb KM |
1101 | static int prevtype; |
1102 | static long predict; | |
1103 | long blks, i; | |
1104 | ||
8d412b7c | 1105 | if (header->c_type == TS_TAPE) { |
bf0c06c3 KM |
1106 | fprintf(stderr, "Volume header (%s inode format) ", |
1107 | oldinofmt ? "old" : "new"); | |
3b29a62c | 1108 | if (header->c_firstrec) |
bf0c06c3 | 1109 | fprintf(stderr, "begins with record %d", |
3b29a62c KM |
1110 | header->c_firstrec); |
1111 | fprintf(stderr, "\n"); | |
b8f4e820 | 1112 | previno = 0x7fffffff; |
5c5f44c7 KM |
1113 | return; |
1114 | } | |
7851e15d | 1115 | if (previno == 0x7fffffff) |
2cb5dabb KM |
1116 | goto newcalc; |
1117 | switch (prevtype) { | |
2cb5dabb | 1118 | case TS_BITS: |
5c5f44c7 | 1119 | fprintf(stderr, "Dump mask header"); |
2cb5dabb KM |
1120 | break; |
1121 | case TS_CLRI: | |
5c5f44c7 | 1122 | fprintf(stderr, "Remove mask header"); |
2cb5dabb KM |
1123 | break; |
1124 | case TS_INODE: | |
5c5f44c7 | 1125 | fprintf(stderr, "File header, ino %d", previno); |
2cb5dabb KM |
1126 | break; |
1127 | case TS_ADDR: | |
5c5f44c7 | 1128 | fprintf(stderr, "File continuation header, ino %d", previno); |
2cb5dabb KM |
1129 | break; |
1130 | case TS_END: | |
5c5f44c7 | 1131 | fprintf(stderr, "End of tape header"); |
2cb5dabb KM |
1132 | break; |
1133 | } | |
2cb5dabb KM |
1134 | if (predict != blksread - 1) |
1135 | fprintf(stderr, "; predicted %d blocks, got %d blocks", | |
1136 | predict, blksread - 1); | |
1137 | fprintf(stderr, "\n"); | |
1138 | newcalc: | |
1139 | blks = 0; | |
5c5f44c7 | 1140 | if (header->c_type != TS_END) |
2cb5dabb KM |
1141 | for (i = 0; i < header->c_count; i++) |
1142 | if (header->c_addr[i] != 0) | |
1143 | blks++; | |
1144 | predict = blks; | |
1145 | blksread = 0; | |
1146 | prevtype = header->c_type; | |
1147 | previno = header->c_inumber; | |
f78e116c KM |
1148 | } |
1149 | ||
1150 | /* | |
1151 | * Find an inode header. | |
1152 | * Complain if had to skip, and complain is set. | |
1153 | */ | |
451eb9a1 | 1154 | static void |
b32320ae | 1155 | findinode(header) |
f78e116c | 1156 | struct s_spcl *header; |
f78e116c | 1157 | { |
2cb5dabb | 1158 | static long skipcnt = 0; |
b8f4e820 KM |
1159 | long i; |
1160 | char buf[TP_BSIZE]; | |
f78e116c KM |
1161 | |
1162 | curfile.name = "<name unknown>"; | |
1163 | curfile.action = UNKNOWN; | |
451eb9a1 | 1164 | curfile.dip = NULL; |
f78e116c | 1165 | curfile.ino = 0; |
e551fdb2 KM |
1166 | do { |
1167 | if (header->c_magic != NFS_MAGIC) { | |
f78e116c | 1168 | skipcnt++; |
e551fdb2 KM |
1169 | while (gethead(header) == FAIL || |
1170 | header->c_date != dumpdate) | |
1171 | skipcnt++; | |
1172 | } | |
1173 | switch (header->c_type) { | |
1174 | ||
1175 | case TS_ADDR: | |
b8f4e820 KM |
1176 | /* |
1177 | * Skip up to the beginning of the next record | |
1178 | */ | |
1179 | for (i = 0; i < header->c_count; i++) | |
1180 | if (header->c_addr[i]) | |
1181 | readtape(buf); | |
e551fdb2 KM |
1182 | while (gethead(header) == FAIL || |
1183 | header->c_date != dumpdate) | |
1184 | skipcnt++; | |
1185 | break; | |
1186 | ||
1187 | case TS_INODE: | |
f78e116c KM |
1188 | curfile.dip = &header->c_dinode; |
1189 | curfile.ino = header->c_inumber; | |
1190 | break; | |
e551fdb2 KM |
1191 | |
1192 | case TS_END: | |
f78e116c KM |
1193 | curfile.ino = maxino; |
1194 | break; | |
e551fdb2 KM |
1195 | |
1196 | case TS_CLRI: | |
f78e116c | 1197 | curfile.name = "<file removal list>"; |
e108d3a2 | 1198 | break; |
e551fdb2 KM |
1199 | |
1200 | case TS_BITS: | |
f78e116c | 1201 | curfile.name = "<file dump list>"; |
e108d3a2 | 1202 | break; |
e551fdb2 KM |
1203 | |
1204 | case TS_TAPE: | |
1205 | panic("unexpected tape header\n"); | |
1206 | /* NOTREACHED */ | |
1207 | ||
1208 | default: | |
1209 | panic("unknown tape header type %d\n", spcl.c_type); | |
1210 | /* NOTREACHED */ | |
1211 | ||
f78e116c | 1212 | } |
e551fdb2 | 1213 | } while (header->c_type == TS_ADDR); |
b32320ae | 1214 | if (skipcnt > 0) |
dd1900f1 | 1215 | fprintf(stderr, "resync restore, skipped %d blocks\n", skipcnt); |
f78e116c KM |
1216 | skipcnt = 0; |
1217 | } | |
1218 | ||
451eb9a1 | 1219 | static int |
e551fdb2 KM |
1220 | checksum(buf) |
1221 | register int *buf; | |
f78e116c KM |
1222 | { |
1223 | register int i, j; | |
1224 | ||
1225 | j = sizeof(union u_spcl) / sizeof(int); | |
1226 | i = 0; | |
b4c41341 KS |
1227 | if(!Bcvt) { |
1228 | do | |
e551fdb2 | 1229 | i += *buf++; |
b4c41341 KS |
1230 | while (--j); |
1231 | } else { | |
1232 | /* What happens if we want to read restore tapes | |
1233 | for a 16bit int machine??? */ | |
1234 | do | |
e551fdb2 | 1235 | i += swabl(*buf++); |
b4c41341 KS |
1236 | while (--j); |
1237 | } | |
1238 | ||
f78e116c KM |
1239 | if (i != CHECKSUM) { |
1240 | fprintf(stderr, "Checksum error %o, inode %d file %s\n", i, | |
1241 | curfile.ino, curfile.name); | |
2cb5dabb | 1242 | return(FAIL); |
f78e116c | 1243 | } |
2cb5dabb | 1244 | return(GOOD); |
f78e116c KM |
1245 | } |
1246 | ||
e9e7ecc4 | 1247 | #ifdef RRESTORE |
451eb9a1 KB |
1248 | #if __STDC__ |
1249 | #include <stdarg.h> | |
1250 | #else | |
1251 | #include <varargs.h> | |
1252 | #endif | |
f78e116c | 1253 | |
451eb9a1 KB |
1254 | void |
1255 | #if __STDC__ | |
1256 | msg(const char *fmt, ...) | |
1257 | #else | |
1258 | msg(fmt, va_alist) | |
1259 | char *fmt; | |
1260 | va_dcl | |
1261 | #endif | |
1262 | { | |
1263 | va_list ap; | |
1264 | #if __STDC__ | |
1265 | va_start(ap, fmt); | |
1266 | #else | |
1267 | va_start(ap); | |
1268 | #endif | |
1269 | (void)vfprintf(stderr, fmt, ap); | |
1270 | va_end(ap); | |
f78e116c | 1271 | } |
2532f4a9 | 1272 | #endif /* RRESTORE */ |
b4c41341 | 1273 | |
451eb9a1 | 1274 | static u_char * |
025e61b9 KM |
1275 | swabshort(sp, n) |
1276 | register u_char *sp; | |
1277 | register int n; | |
1278 | { | |
1279 | char c; | |
1280 | ||
1281 | while (--n >= 0) { | |
1282 | c = sp[0]; sp[0] = sp[1]; sp[1] = c; | |
1283 | sp += 2; | |
1284 | } | |
1285 | return (sp); | |
1286 | } | |
1287 | ||
451eb9a1 | 1288 | static u_char * |
025e61b9 KM |
1289 | swablong(sp, n) |
1290 | register u_char *sp; | |
1291 | register int n; | |
1292 | { | |
1293 | char c; | |
1294 | ||
1295 | while (--n >= 0) { | |
1296 | c = sp[0]; sp[0] = sp[3]; sp[3] = c; | |
1297 | c = sp[2]; sp[2] = sp[1]; sp[1] = c; | |
1298 | sp += 4; | |
1299 | } | |
1300 | return (sp); | |
1301 | } | |
1302 | ||
451eb9a1 | 1303 | void |
b4c41341 | 1304 | swabst(cp, sp) |
025e61b9 | 1305 | register u_char *cp, *sp; |
b4c41341 KS |
1306 | { |
1307 | int n = 0; | |
025e61b9 KM |
1308 | |
1309 | while (*cp) { | |
b4c41341 KS |
1310 | switch (*cp) { |
1311 | case '0': case '1': case '2': case '3': case '4': | |
1312 | case '5': case '6': case '7': case '8': case '9': | |
1313 | n = (n * 10) + (*cp++ - '0'); | |
1314 | continue; | |
1315 | ||
1316 | case 's': case 'w': case 'h': | |
025e61b9 KM |
1317 | if (n == 0) |
1318 | n = 1; | |
1319 | sp = swabshort(sp, n); | |
b4c41341 KS |
1320 | break; |
1321 | ||
1322 | case 'l': | |
025e61b9 KM |
1323 | if (n == 0) |
1324 | n = 1; | |
1325 | sp = swablong(sp, n); | |
1326 | break; | |
1327 | ||
1328 | default: /* Any other character, like 'b' counts as byte. */ | |
1329 | if (n == 0) | |
1330 | n = 1; | |
1331 | sp += n; | |
1332 | break; | |
b4c41341 | 1333 | } |
025e61b9 KM |
1334 | cp++; |
1335 | n = 0; | |
b4c41341 KS |
1336 | } |
1337 | } | |
025e61b9 | 1338 | |
451eb9a1 | 1339 | static u_long |
025e61b9 KM |
1340 | swabl(x) |
1341 | u_long x; | |
1342 | { | |
451eb9a1 | 1343 | swabst((u_char *)"l", (u_char *)&x); |
025e61b9 KM |
1344 | return (x); |
1345 | } |