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[netbsd-mini2440.git] / sbin / restore / tape.c
blobddacecd27d9861187ac4e2ec7b9a855e4d2304fb
1 /* $NetBSD: tape.c,v 1.62 2009/02/18 13:13:27 yamt Exp $ */
2
3 /*
4 * Copyright (c) 1983, 1993
5 * The Regents of the University of California. All rights reserved.
6 * (c) UNIX System Laboratories, Inc.
7 * All or some portions of this file are derived from material licensed
8 * to the University of California by American Telephone and Telegraph
9 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
10 * the permission of UNIX System Laboratories, Inc.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37 #include <sys/cdefs.h>
38 #ifndef lint
39 #if 0
40 static char sccsid[] = "@(#)tape.c 8.9 (Berkeley) 5/1/95";
41 #else
42 __RCSID("$NetBSD: tape.c,v 1.62 2009/02/18 13:13:27 yamt Exp $");
43 #endif
44 #endif /* not lint */
45
46 #include <sys/param.h>
47 #include <sys/file.h>
48 #include <sys/ioctl.h>
49 #include <sys/mtio.h>
50 #include <sys/stat.h>
51
52 #include <ufs/ufs/dinode.h>
53 #include <protocols/dumprestore.h>
54
55 #include <err.h>
56 #include <errno.h>
57 #include <paths.h>
58 #include <setjmp.h>
59 #include <stdio.h>
60 #include <stdlib.h>
61 #include <string.h>
62 #include <time.h>
63 #include <unistd.h>
64
65 #include <md5.h>
66 #include <rmd160.h>
67 #include <sha1.h>
68
69 #include "restore.h"
70 #include "extern.h"
71
72 static u_int32_t fssize = MAXBSIZE;
73 static int mt = -1;
74 static int pipein = 0;
75 static char magtape[BUFSIZ];
76 static int blkcnt;
77 static int numtrec;
78 static char *tapebuf;
79 static union u_spcl endoftapemark;
80 static int blksread; /* blocks read since last header */
81 static int tpblksread = 0; /* TP_BSIZE blocks read */
82 static int tapesread;
83 static jmp_buf restart;
84 static int gettingfile = 0; /* restart has a valid frame */
85 #ifdef RRESTORE
86 static const char *host = NULL;
87 #endif
88
89 static int ofile;
90 static char lnkbuf[MAXPATHLEN + 1];
91 static int pathlen;
92
93 int oldinofmt; /* old inode format conversion required */
94 int Bcvt; /* Swap Bytes (for CCI or sun) */
95
96 const struct digest_desc *ddesc;
97 const struct digest_desc digest_descs[] = {
98 { "MD5",
99 (void (*)(void *))MD5Init,
100 (void (*)(void *, const u_char *, u_int))MD5Update,
101 (char *(*)(void *, void *))MD5End, },
102 { "SHA1",
103 (void (*)(void *))SHA1Init,
104 (void (*)(void *, const u_char *, u_int))SHA1Update,
105 (char *(*)(void *, void *))SHA1End, },
106 { "RMD160",
107 (void (*)(void *))RMD160Init,
108 (void (*)(void *, const u_char *, u_int))RMD160Update,
109 (char *(*)(void *, void *))RMD160End, },
110 { .dd_name = NULL },
111 };
112
113 static union digest_context {
114 MD5_CTX dc_md5;
115 SHA1_CTX dc_sha1;
116 RMD160_CTX dc_rmd160;
117 } dcontext;
118
119 union digest_buffer {
120 char db_md5[32 + 1];
121 char db_sha1[40 + 1];
122 char db_rmd160[40 + 1];
123 };
124
125 #define FLUSHTAPEBUF() blkcnt = ntrec + 1
126
127 union u_ospcl {
128 char dummy[TP_BSIZE];
129 struct s_ospcl {
130 int32_t c_type;
131 int32_t c_date;
132 int32_t c_ddate;
133 int32_t c_volume;
134 int32_t c_tapea;
135 u_int16_t c_inumber;
136 int32_t c_magic;
137 int32_t c_checksum;
138 struct odinode {
139 unsigned short odi_mode;
140 u_int16_t odi_nlink;
141 u_int16_t odi_uid;
142 u_int16_t odi_gid;
143 int32_t odi_size;
144 int32_t odi_rdev;
145 char odi_addr[36];
146 int32_t odi_atime;
147 int32_t odi_mtime;
148 int32_t odi_ctime;
149 } c_odinode;
150 int32_t c_count;
151 char c_addr[256];
152 } s_ospcl;
153 };
154
155 static void accthdr(struct s_spcl *);
156 static int checksum(int *);
157 static void findinode(struct s_spcl *);
158 static void findtapeblksize(void);
159 static void getbitmap(char **);
160 static int gethead(struct s_spcl *);
161 static void readtape(char *);
162 static void setdumpnum(void);
163 static void terminateinput(void);
164 static void xtrfile(char *, long);
165 static void xtrlnkfile(char *, long);
166 static void xtrlnkskip(char *, long);
167 static void xtrskip(char *, long);
168 static void swap_header(struct s_spcl *);
169 static void swap_old_header(struct s_ospcl *);
170
171 const struct digest_desc *
172 digest_lookup(const char *name)
173 {
174 const struct digest_desc *dd;
175
176 for (dd = digest_descs; dd->dd_name != NULL; dd++)
177 if (strcasecmp(dd->dd_name, name) == 0)
178 return (dd);
179
180 return (NULL);
181 }
182
183 /*
184 * Set up an input source
185 */
186 void
187 setinput(const char *source)
188 {
189 char *cp;
190 FLUSHTAPEBUF();
191 if (bflag)
192 newtapebuf(ntrec);
193 else
194 newtapebuf(NTREC > HIGHDENSITYTREC ? NTREC : HIGHDENSITYTREC);
195 terminal = stdin;
196
197 #ifdef RRESTORE
198 if ((cp = strchr(source, ':')) != NULL) {
199 host = source;
200 /* Ok, because const strings don't have : */
201 *cp++ = '\0';
202 source = cp;
203 if (rmthost(host) == 0)
204 exit(1);
205 } else
206 #endif
207 if (strcmp(source, "-") == 0) {
208 /*
209 * Since input is coming from a pipe we must establish
210 * our own connection to the terminal.
211 */
212 terminal = fopen(_PATH_TTY, "r");
213 if (terminal == NULL) {
214 (void)fprintf(stderr, "cannot open %s: %s\n",
215 _PATH_TTY, strerror(errno));
216 terminal = fopen(_PATH_DEVNULL, "r");
217 if (terminal == NULL) {
218 (void)fprintf(stderr, "cannot open %s: %s\n",
219 _PATH_DEVNULL, strerror(errno));
220 exit(1);
221 }
222 }
223 pipein++;
224 }
225 (void) strcpy(magtape, source);
226 }
227
228 void
229 newtapebuf(long size)
230 {
231 static int tapebufsize = -1;
232
233 ntrec = size;
234 if (size <= tapebufsize)
235 return;
236 if (tapebuf != NULL)
237 free(tapebuf);
238 tapebuf = malloc(size * TP_BSIZE);
239 if (tapebuf == NULL) {
240 fprintf(stderr, "Cannot allocate space for tape buffer\n");
241 exit(1);
242 }
243 tapebufsize = size;
244 }
245
246 /*
247 * Verify that the tape drive can be accessed and
248 * that it actually is a dump tape.
249 */
250 void
251 setup(void)
252 {
253 int i, j, *ip;
254 struct stat stbuf;
255
256 vprintf(stdout, "Verify tape and initialize maps\n");
257 #ifdef RRESTORE
258 if (host)
259 mt = rmtopen(magtape, 0, 0);
260 else
261 #endif
262 if (pipein)
263 mt = 0;
264 else
265 mt = open(magtape, O_RDONLY, 0);
266 if (mt < 0) {
267 fprintf(stderr, "%s: %s\n", magtape, strerror(errno));
268 exit(1);
269 }
270 volno = 1;
271 setdumpnum();
272 FLUSHTAPEBUF();
273 if (!pipein && !bflag)
274 findtapeblksize();
275 if (gethead(&spcl) == FAIL) {
276 blkcnt--; /* push back this block */
277 blksread--;
278 tpblksread--;
279 cvtflag++;
280 if (gethead(&spcl) == FAIL) {
281 fprintf(stderr, "Tape is not a dump tape\n");
282 exit(1);
283 }
284 fprintf(stderr, "Converting to new file system format.\n");
285 }
286 if (pipein) {
287 endoftapemark.s_spcl.c_magic = cvtflag ? OFS_MAGIC :
288 FS_UFS2_MAGIC;
289 endoftapemark.s_spcl.c_type = TS_END;
290 ip = (int *)&endoftapemark;
291 j = sizeof(union u_spcl) / sizeof(int);
292 i = 0;
293 do
294 i += *ip++;
295 while (--j);
296 endoftapemark.s_spcl.c_checksum = CHECKSUM - i;
297 }
298 if (vflag || command == 't')
299 printdumpinfo();
300 dumptime = spcl.c_ddate;
301 dumpdate = spcl.c_date;
302 if (stat(".", &stbuf) < 0) {
303 fprintf(stderr, "cannot stat .: %s\n", strerror(errno));
304 exit(1);
305 }
306 if (stbuf.st_blksize >= TP_BSIZE && stbuf.st_blksize <= MAXBSIZE)
307 fssize = stbuf.st_blksize;
308 if (((fssize - 1) & fssize) != 0) {
309 fprintf(stderr, "bad block size %d\n", fssize);
310 exit(1);
311 }
312 if (spcl.c_volume != 1) {
313 fprintf(stderr, "Tape is not volume 1 of the dump\n");
314 exit(1);
315 }
316 if (gethead(&spcl) == FAIL) {
317 dprintf(stdout, "header read failed at %d blocks\n", blksread);
318 panic("no header after volume mark!\n");
319 }
320 findinode(&spcl);
321 if (spcl.c_type != TS_CLRI) {
322 fprintf(stderr, "Cannot find file removal list\n");
323 exit(1);
324 }
325 getbitmap(&usedinomap);
326 getbitmap(&dumpmap);
327 /*
328 * If there may be whiteout entries on the tape, pretend that the
329 * whiteout inode exists, so that the whiteout entries can be
330 * extracted.
331 */
332 if (oldinofmt == 0)
333 SETINO(WINO, dumpmap);
334 }
335
336 /*
337 * Prompt user to load a new dump volume.
338 * "Nextvol" is the next suggested volume to use.
339 * This suggested volume is enforced when doing full
340 * or incremental restores, but can be overrridden by
341 * the user when only extracting a subset of the files.
342 */
343 void
344 getvol(int nextvol)
345 {
346 int newvol, savecnt, wantnext, i;
347 union u_spcl tmpspcl;
348 # define tmpbuf tmpspcl.s_spcl
349 char buf[TP_BSIZE];
350
351 newvol = savecnt = wantnext = 0;
352 if (nextvol == 1) {
353 tapesread = 0;
354 gettingfile = 0;
355 }
356 if (pipein) {
357 if (nextvol != 1)
358 panic("Changing volumes on pipe input?\n");
359 if (volno == 1)
360 return;
361 goto gethdr;
362 }
363 savecnt = blksread;
364 again:
365 if (pipein)
366 exit(1); /* pipes do not get a second chance */
367 if (command == 'R' || command == 'r' || curfile.action != SKIP) {
368 newvol = nextvol;
369 wantnext = 1;
370 } else {
371 newvol = 0;
372 wantnext = 0;
373 }
374 while (newvol <= 0) {
375 if (tapesread == 0) {
376 fprintf(stderr, "%s%s%s%s%s",
377 "You have not read any tapes yet.\n",
378 "Unless you know which volume your",
379 " file(s) are on you should start\n",
380 "with the last volume and work",
381 " towards the first.\n");
382 fprintf(stderr,
383 "(Use 1 for the first volume/tape, etc.)\n");
384 } else {
385 fprintf(stderr, "You have read volumes");
386 strcpy(buf, ": ");
387 for (i = 1; i < 32; i++)
388 if (tapesread & (1 << i)) {
389 fprintf(stderr, "%s%d", buf, i);
390 strcpy(buf, ", ");
391 }
392 fprintf(stderr, "\n");
393 }
394 do {
395 fprintf(stderr, "Specify next volume #: ");
396 (void) fflush(stderr);
397 (void) fgets(buf, BUFSIZ, terminal);
398 } while (!feof(terminal) && buf[0] == '\n');
399 if (feof(terminal))
400 exit(1);
401 newvol = atoi(buf);
402 if (newvol <= 0) {
403 fprintf(stderr,
404 "Volume numbers are positive numerics\n");
405 }
406 }
407 if (newvol == volno) {
408 tapesread |= 1 << volno;
409 return;
410 }
411 closemt();
412 fprintf(stderr, "Mount tape volume %d\n", newvol);
413 fprintf(stderr, "Enter ``none'' if there are no more tapes\n");
414 fprintf(stderr, "otherwise enter tape name (default: %s) ", magtape);
415 (void) fflush(stderr);
416 (void) fgets(buf, BUFSIZ, terminal);
417 if (feof(terminal))
418 exit(1);
419 if (!strcmp(buf, "none\n")) {
420 terminateinput();
421 return;
422 }
423 if (buf[0] != '\n') {
424 (void) strcpy(magtape, buf);
425 magtape[strlen(magtape) - 1] = '\0';
426 }
427 #ifdef RRESTORE
428 if (host)
429 mt = rmtopen(magtape, 0, 0);
430 else
431 #endif
432 mt = open(magtape, O_RDONLY, 0);
433
434 if (mt == -1) {
435 fprintf(stderr, "Cannot open %s\n", magtape);
436 volno = -1;
437 goto again;
438 }
439 gethdr:
440 volno = newvol;
441 setdumpnum();
442 FLUSHTAPEBUF();
443 if (gethead(&tmpbuf) == FAIL) {
444 dprintf(stdout, "header read failed at %d blocks\n", blksread);
445 fprintf(stderr, "tape is not dump tape\n");
446 volno = 0;
447 goto again;
448 }
449 if (tmpbuf.c_volume != volno) {
450 fprintf(stderr,
451 "Volume mismatch: expecting %d, tape header claims it is %d\n",
452 volno, tmpbuf.c_volume);
453 volno = 0;
454 goto again;
455 }
456 if (tmpbuf.c_date != dumpdate || tmpbuf.c_ddate != dumptime) {
457 time_t ttime = tmpbuf.c_date;
458 fprintf(stderr, "Wrong dump date\n\tgot: %s",
459 ctime(&ttime));
460 fprintf(stderr, "\twanted: %s", ctime(&dumpdate));
461 volno = 0;
462 goto again;
463 }
464 tapesread |= 1 << volno;
465 blksread = savecnt;
466 /*
467 * If continuing from the previous volume, skip over any
468 * blocks read already at the end of the previous volume.
469 *
470 * If coming to this volume at random, skip to the beginning
471 * of the next record.
472 */
473 dprintf(stdout, "read %ld recs, tape starts with %ld\n",
474 (long)tpblksread, (long)tmpbuf.c_firstrec);
475 if (tmpbuf.c_type == TS_TAPE && (tmpbuf.c_flags & DR_NEWHEADER)) {
476 if (!wantnext) {
477 tpblksread = tmpbuf.c_firstrec;
478 for (i = tmpbuf.c_count; i > 0; i--)
479 readtape(buf);
480 } else if (tmpbuf.c_firstrec > 0 &&
481 tmpbuf.c_firstrec < tpblksread - 1) {
482 /*
483 * -1 since we've read the volume header
484 */
485 i = tpblksread - tmpbuf.c_firstrec - 1;
486 dprintf(stderr, "Skipping %d duplicate record%s.\n",
487 i, i > 1 ? "s" : "");
488 while (--i >= 0)
489 readtape(buf);
490 }
491 }
492 if (curfile.action == USING) {
493 if (volno == 1)
494 panic("active file into volume 1\n");
495 return;
496 }
497 /*
498 * Skip up to the beginning of the next record
499 */
500 if (tmpbuf.c_type == TS_TAPE && (tmpbuf.c_flags & DR_NEWHEADER))
501 for (i = tmpbuf.c_count; i > 0; i--)
502 readtape(buf);
503 (void) gethead(&spcl);
504 findinode(&spcl);
505 if (gettingfile) {
506 gettingfile = 0;
507 longjmp(restart, 1);
508 }
509 }
510
511 /*
512 * Handle unexpected EOF.
513 */
514 static void
515 terminateinput(void)
516 {
517
518 if (gettingfile && curfile.action == USING) {
519 printf("Warning: %s %s\n",
520 "End-of-input encountered while extracting", curfile.name);
521 }
522 curfile.name = "<name unknown>";
523 curfile.action = UNKNOWN;
524 curfile.mode = 0;
525 curfile.ino = maxino;
526 if (gettingfile) {
527 gettingfile = 0;
528 longjmp(restart, 1);
529 }
530 }
531
532 /*
533 * handle multiple dumps per tape by skipping forward to the
534 * appropriate one.
535 */
536 static void
537 setdumpnum(void)
538 {
539 struct mtop tcom;
540
541 if (dumpnum == 1 || volno != 1)
542 return;
543 if (pipein) {
544 fprintf(stderr, "Cannot have multiple dumps on pipe input\n");
545 exit(1);
546 }
547 tcom.mt_op = MTFSF;
548 tcom.mt_count = dumpnum - 1;
549 #ifdef RRESTORE
550 if (host)
551 rmtioctl(MTFSF, dumpnum - 1);
552 else
553 #endif
554 if (ioctl(mt, (int)MTIOCTOP, (char *)&tcom) < 0)
555 fprintf(stderr, "ioctl MTFSF: %s\n", strerror(errno));
556 }
557
558 void
559 printdumpinfo(void)
560 {
561 time_t ttime;
562
563 ttime = spcl.c_date;
564 fprintf(stdout, "Dump date: %s", ctime(&ttime));
565 ttime = spcl.c_ddate;
566 fprintf(stdout, "Dumped from: %s",
567 (spcl.c_ddate == 0) ? "the epoch\n" : ctime(&ttime));
568 fprintf(stderr, "Level %d dump of %s on %s:%s\n",
569 spcl.c_level, spcl.c_filesys,
570 *spcl.c_host? spcl.c_host: "[unknown]", spcl.c_dev);
571 fprintf(stderr, "Label: %s\n", spcl.c_label);
572
573 if (Mtreefile) {
574 ttime = spcl.c_date;
575 fprintf(Mtreefile, "#Dump date: %s", ctime(&ttime));
576 ttime = spcl.c_ddate;
577 fprintf(Mtreefile, "#Dumped from: %s",
578 (spcl.c_ddate == 0) ? "the epoch\n" : ctime(&ttime));
579 fprintf(Mtreefile, "#Level %d dump of %s on %s:%s\n",
580 spcl.c_level, spcl.c_filesys,
581 *spcl.c_host? spcl.c_host: "[unknown]", spcl.c_dev);
582 fprintf(Mtreefile, "#Label: %s\n", spcl.c_label);
583 fprintf(Mtreefile, "/set uname=root gname=wheel\n");
584 if (ferror(Mtreefile))
585 err(1, "error writing to mtree file");
586 }
587 }
588
589 int
590 extractfile(char *name)
591 {
592 union digest_buffer dbuffer;
593 int flags;
594 uid_t uid;
595 gid_t gid;
596 mode_t mode;
597 struct timeval mtimep[2], ctimep[2];
598 struct entry *ep;
599 int setbirth;
600
601 curfile.name = name;
602 curfile.action = USING;
603 mtimep[0].tv_sec = curfile.atime_sec;
604 mtimep[0].tv_usec = curfile.atime_nsec / 1000;
605 mtimep[1].tv_sec = curfile.mtime_sec;
606 mtimep[1].tv_usec = curfile.mtime_nsec / 1000;
607
608 setbirth = curfile.birthtime_sec != 0;
609
610 if (setbirth) {
611 ctimep[0].tv_sec = curfile.atime_sec;
612 ctimep[0].tv_usec = curfile.atime_nsec / 1000;
613 ctimep[1].tv_sec = curfile.birthtime_sec;
614 ctimep[1].tv_usec = curfile.birthtime_nsec / 1000;
615 }
616 uid = curfile.uid;
617 gid = curfile.gid;
618 mode = curfile.mode;
619 flags = curfile.file_flags;
620 switch (mode & IFMT) {
621
622 default:
623 fprintf(stderr, "%s: unknown file mode 0%o\n", name, mode);
624 skipfile();
625 return (FAIL);
626
627 case IFSOCK:
628 vprintf(stdout, "skipped socket %s\n", name);
629 skipfile();
630 return (GOOD);
631
632 case IFDIR:
633 if (mflag) {
634 ep = lookupname(name);
635 if (ep == NULL || ep->e_flags & EXTRACT)
636 panic("unextracted directory %s\n", name);
637 skipfile();
638 return (GOOD);
639 }
640 vprintf(stdout, "extract file %s\n", name);
641 return (genliteraldir(name, curfile.ino));
642
643 case IFLNK:
644 lnkbuf[0] = '\0';
645 pathlen = 0;
646 getfile(xtrlnkfile, xtrlnkskip);
647 if (pathlen == 0) {
648 vprintf(stdout,
649 "%s: zero length symbolic link (ignored)\n", name);
650 return (GOOD);
651 }
652 if (uflag)
653 (void) unlink(name);
654 if (linkit(lnkbuf, name, SYMLINK) == GOOD) {
655 if (setbirth)
656 (void) lutimes(name, ctimep);
657 (void) lutimes(name, mtimep);
658 (void) lchown(name, uid, gid);
659 (void) lchmod(name, mode);
660 if (Mtreefile) {
661 writemtree(name, "link",
662 uid, gid, mode, flags);
663 } else
664 (void) lchflags(name, flags);
665 return (GOOD);
666 }
667 return (FAIL);
668
669 case IFCHR:
670 case IFBLK:
671 vprintf(stdout, "extract special file %s\n", name);
672 if (Nflag) {
673 skipfile();
674 return (GOOD);
675 }
676 if (uflag)
677 (void) unlink(name);
678 if (mknod(name, (mode & (IFCHR | IFBLK)) | 0600,
679 (int)curfile.rdev) < 0) {
680 fprintf(stderr, "%s: cannot create special file: %s\n",
681 name, strerror(errno));
682 skipfile();
683 return (FAIL);
684 }
685 skipfile();
686 if (setbirth)
687 (void) utimes(name, ctimep);
688 (void) utimes(name, mtimep);
689 (void) chown(name, uid, gid);
690 (void) chmod(name, mode);
691 if (Mtreefile) {
692 writemtree(name,
693 ((mode & (S_IFBLK | IFCHR)) == IFBLK) ?
694 "block" : "char",
695 uid, gid, mode, flags);
696 } else
697 (void) chflags(name, flags);
698 return (GOOD);
699
700 case IFIFO:
701 vprintf(stdout, "extract fifo %s\n", name);
702 if (Nflag) {
703 skipfile();
704 return (GOOD);
705 }
706 if (uflag)
707 (void) unlink(name);
708 if (mkfifo(name, 0600) < 0) {
709 fprintf(stderr, "%s: cannot create fifo: %s\n",
710 name, strerror(errno));
711 skipfile();
712 return (FAIL);
713 }
714 skipfile();
715 if (setbirth)
716 (void) utimes(name, ctimep);
717 (void) utimes(name, mtimep);
718 (void) chown(name, uid, gid);
719 (void) chmod(name, mode);
720 if (Mtreefile) {
721 writemtree(name, "fifo",
722 uid, gid, mode, flags);
723 } else
724 (void) chflags(name, flags);
725 return (GOOD);
726
727 case IFREG:
728 vprintf(stdout, "extract file %s\n", name);
729 if (uflag)
730 (void) unlink(name);
731 if (!Nflag && (ofile = open(name, O_WRONLY | O_CREAT | O_TRUNC,
732 0600)) < 0) {
733 fprintf(stderr, "%s: cannot create file: %s\n",
734 name, strerror(errno));
735 skipfile();
736 return (FAIL);
737 }
738 if (Dflag)
739 (*ddesc->dd_init)(&dcontext);
740 getfile(xtrfile, xtrskip);
741 if (Dflag) {
742 (*ddesc->dd_end)(&dcontext, &dbuffer);
743 for (ep = lookupname(name); ep != NULL;
744 ep = ep->e_links)
745 fprintf(stdout, "%s (%s) = %s\n",
746 ddesc->dd_name, myname(ep),
747 (char *)&dbuffer);
748 }
749 if (Nflag)
750 return (GOOD);
751 if (setbirth)
752 (void) futimes(ofile, ctimep);
753 (void) futimes(ofile, mtimep);
754 (void) fchown(ofile, uid, gid);
755 (void) fchmod(ofile, mode);
756 if (Mtreefile) {
757 writemtree(name, "file",
758 uid, gid, mode, flags);
759 } else
760 (void) fchflags(ofile, flags);
761 (void) close(ofile);
762 return (GOOD);
763 }
764 /* NOTREACHED */
765 }
766
767 /*
768 * skip over bit maps on the tape
769 */
770 void
771 skipmaps(void)
772 {
773
774 while (spcl.c_type == TS_BITS || spcl.c_type == TS_CLRI)
775 skipfile();
776 }
777
778 /*
779 * skip over a file on the tape
780 */
781 void
782 skipfile(void)
783 {
784
785 curfile.action = SKIP;
786 getfile(xtrnull, xtrnull);
787 }
788
789 /*
790 * Extract a bitmap from the tape.
791 * The first bitmap sets maxino;
792 * other bitmaps must be of same size.
793 */
794 void
795 getbitmap(char **map)
796 {
797 int i;
798 size_t volatile size = spcl.c_size;
799 size_t volatile mapsize = size;
800 char *mapptr;
801
802 curfile.action = USING;
803 if (spcl.c_type == TS_END)
804 panic("ran off end of tape\n");
805 if (spcl.c_magic != FS_UFS2_MAGIC)
806 panic("not at beginning of a file\n");
807 if (!gettingfile && setjmp(restart) != 0)
808 return;
809 gettingfile++;
810 mapptr = *map = malloc(size);
811 loop:
812 if (*map == NULL)
813 panic("no memory for %s\n", curfile.name);
814 for (i = 0; i < spcl.c_count && size >= TP_BSIZE; i++) {
815 readtape(mapptr);
816 mapptr += TP_BSIZE;
817 size -= TP_BSIZE;
818 }
819 if (size != 0 || i != spcl.c_count)
820 panic("%s: inconsistent map size\n", curfile.name);
821 if (gethead(&spcl) == GOOD && spcl.c_type == TS_ADDR) {
822 size = spcl.c_count * TP_BSIZE;
823 *map = realloc(*map, mapsize + size);
824 mapptr = *map + mapsize;
825 mapsize += size;
826 goto loop;
827 }
828 if (maxino == 0)
829 maxino = mapsize * NBBY + 1;
830 else if (maxino != mapsize * NBBY + 1)
831 panic("%s: map size changed\n", curfile.name);
832 findinode(&spcl);
833 gettingfile = 0;
834 }
835
836 /*
837 * Extract a file from the tape.
838 * When an allocated block is found it is passed to the fill function;
839 * when an unallocated block (hole) is found, a zeroed buffer is passed
840 * to the skip function.
841 */
842 void
843 getfile(void (*fill)(char *buf, long size),
844 void (*skip)(char *buf, long size))
845 {
846 int i;
847 int volatile curblk;
848 quad_t volatile size;
849 static char clearedbuf[MAXBSIZE];
850 char buf[MAXBSIZE / TP_BSIZE][TP_BSIZE];
851 char junk[TP_BSIZE];
852
853 curblk = 0;
854 size = spcl.c_size;
855
856 if (spcl.c_type == TS_END)
857 panic("ran off end of tape\n");
858 if (spcl.c_magic != FS_UFS2_MAGIC)
859 panic("not at beginning of a file\n");
860 if (!gettingfile && setjmp(restart) != 0)
861 return;
862 gettingfile++;
863 loop:
864 for (i = 0; i < spcl.c_count; i++) {
865 if (spcl.c_addr[i]) {
866 readtape(&buf[curblk++][0]);
867 if ((uint32_t)curblk == fssize / TP_BSIZE) {
868 (*fill)((char *)buf, (long)(size > TP_BSIZE ?
869 fssize : (curblk - 1) * TP_BSIZE + size));
870 curblk = 0;
871 }
872 } else {
873 if (curblk > 0) {
874 (*fill)((char *)buf, (long)(size > TP_BSIZE ?
875 curblk * TP_BSIZE :
876 (curblk - 1) * TP_BSIZE + size));
877 curblk = 0;
878 }
879 (*skip)(clearedbuf, (long)(size > TP_BSIZE ?
880 TP_BSIZE : size));
881 }
882 if ((size -= TP_BSIZE) <= 0) {
883 for (i++; i < spcl.c_count; i++)
884 if (spcl.c_addr[i])
885 readtape(junk);
886 break;
887 }
888 }
889 if (gethead(&spcl) == GOOD && size > 0) {
890 if (spcl.c_type == TS_ADDR)
891 goto loop;
892 dprintf(stdout,
893 "Missing address (header) block for %s at %d blocks\n",
894 curfile.name, blksread);
895 }
896 if (curblk > 0)
897 (*fill)((char *)buf, (long)((curblk * TP_BSIZE) + size));
898 /* Skip over Linux extended attributes. */
899 if (spcl.c_type == TS_INODE && (spcl.c_flags & DR_EXTATTRIBUTES)) {
900 for (i = 0; i < spcl.c_count; i++)
901 readtape(junk);
902 (void)gethead(&spcl);
903 }
904 findinode(&spcl);
905 gettingfile = 0;
906 }
907
908 /*
909 * Write out the next block of a file.
910 */
911 static void
912 xtrfile(char *buf, long size)
913 {
914
915 if (Dflag)
916 (*ddesc->dd_update)(&dcontext, buf, size);
917 if (Nflag)
918 return;
919 if (write(ofile, buf, (int) size) == -1) {
920 fprintf(stderr,
921 "write error extracting inode %llu, name %s\nwrite: %s\n",
922 (unsigned long long)curfile.ino, curfile.name,
923 strerror(errno));
924 exit(1);
925 }
926 }
927
928 /*
929 * Skip over a hole in a file.
930 */
931 /* ARGSUSED */
932 static void
933 xtrskip(char *buf, long size)
934 {
935
936 if (Dflag)
937 (*ddesc->dd_update)(&dcontext, buf, size);
938 if (Nflag)
939 return;
940 if (lseek(ofile, size, SEEK_CUR) == -1) {
941 fprintf(stderr,
942 "seek error extracting inode %llu, name %s\nlseek: %s\n",
943 (unsigned long long)curfile.ino, curfile.name,
944 strerror(errno));
945 exit(1);
946 }
947 }
948
949 /*
950 * Collect the next block of a symbolic link.
951 */
952 static void
953 xtrlnkfile(char *buf, long size)
954 {
955
956 pathlen += size;
957 if (pathlen > MAXPATHLEN) {
958 fprintf(stderr, "symbolic link name: %s->%s%s; too long %d\n",
959 curfile.name, lnkbuf, buf, pathlen);
960 exit(1);
961 }
962 (void) strcat(lnkbuf, buf);
963 }
964
965 /*
966 * Skip over a hole in a symbolic link (should never happen).
967 */
968 /* ARGSUSED */
969 static void
970 xtrlnkskip(char *buf __unused, long size __unused)
971 {
972
973 fprintf(stderr, "unallocated block in symbolic link %s\n",
974 curfile.name);
975 exit(1);
976 }
977
978 /*
979 * Noop, when an extraction function is not needed.
980 */
981 /* ARGSUSED */
982 void
983 xtrnull(char *buf __unused, long size __unused)
984 {
985
986 return;
987 }
988
989 /*
990 * Read TP_BSIZE blocks from the input.
991 * Handle read errors, and end of media.
992 */
993 static void
994 readtape(char *buf)
995 {
996 int rd, newvol, i;
997 int cnt, seek_failed;
998
999 if (blkcnt < numtrec) {
1000 memmove(buf, &tapebuf[(blkcnt++ * TP_BSIZE)], (long)TP_BSIZE);
1001 blksread++;
1002 tpblksread++;
1003 return;
1004 }
1005 for (i = 0; i < ntrec; i++)
1006 ((struct s_spcl *)&tapebuf[i * TP_BSIZE])->c_magic = 0;
1007 if (numtrec == 0)
1008 numtrec = ntrec;
1009 cnt = ntrec * TP_BSIZE;
1010 rd = 0;
1011 getmore:
1012 #ifdef RRESTORE
1013 if (host)
1014 i = rmtread(&tapebuf[rd], cnt);
1015 else
1016 #endif
1017 i = read(mt, &tapebuf[rd], cnt);
1018 /*
1019 * Check for mid-tape short read error.
1020 * If found, skip rest of buffer and start with the next.
1021 */
1022 if (!pipein && numtrec < ntrec && i > 0) {
1023 dprintf(stdout, "mid-media short read error.\n");
1024 numtrec = ntrec;
1025 }
1026 /*
1027 * Handle partial block read.
1028 */
1029 if (pipein && i == 0 && rd > 0)
1030 i = rd;
1031 else if (i > 0 && i != ntrec * TP_BSIZE) {
1032 if (pipein) {
1033 rd += i;
1034 cnt -= i;
1035 if (cnt > 0)
1036 goto getmore;
1037 i = rd;
1038 } else {
1039 /*
1040 * Short read. Process the blocks read.
1041 */
1042 if (i % TP_BSIZE != 0)
1043 vprintf(stdout,
1044 "partial block read: %d should be %d\n",
1045 i, ntrec * TP_BSIZE);
1046 numtrec = i / TP_BSIZE;
1047 }
1048 }
1049 /*
1050 * Handle read error.
1051 */
1052 if (i < 0) {
1053 fprintf(stderr, "Tape read error while ");
1054 switch (curfile.action) {
1055 default:
1056 fprintf(stderr, "trying to set up tape\n");
1057 break;
1058 case UNKNOWN:
1059 fprintf(stderr, "trying to resynchronize\n");
1060 break;
1061 case USING:
1062 fprintf(stderr, "restoring %s\n", curfile.name);
1063 break;
1064 case SKIP:
1065 fprintf(stderr, "skipping over inode %llu\n",
1066 (unsigned long long)curfile.ino);
1067 break;
1068 }
1069 if (!yflag && !reply("continue"))
1070 exit(1);
1071 i = ntrec * TP_BSIZE;
1072 memset(tapebuf, 0, i);
1073 #ifdef RRESTORE
1074 if (host)
1075 seek_failed = (rmtseek(i, 1) < 0);
1076 else
1077 #endif
1078 seek_failed = (lseek(mt, i, SEEK_CUR) == (off_t)-1);
1079
1080 if (seek_failed) {
1081 fprintf(stderr,
1082 "continuation failed: %s\n", strerror(errno));
1083 exit(1);
1084 }
1085 }
1086 /*
1087 * Handle end of tape.
1088 */
1089 if (i == 0) {
1090 vprintf(stdout, "End-of-tape encountered\n");
1091 if (!pipein) {
1092 newvol = volno + 1;
1093 volno = 0;
1094 numtrec = 0;
1095 getvol(newvol);
1096 readtape(buf);
1097 return;
1098 }
1099 if (rd % TP_BSIZE != 0)
1100 panic("partial block read: %d should be %d\n",
1101 rd, ntrec * TP_BSIZE);
1102 terminateinput();
1103 memmove(&tapebuf[rd], &endoftapemark, (long)TP_BSIZE);
1104 }
1105 blkcnt = 0;
1106 memmove(buf, &tapebuf[(blkcnt++ * TP_BSIZE)], (long)TP_BSIZE);
1107 blksread++;
1108 tpblksread++;
1109 }
1110
1111 static void
1112 findtapeblksize(void)
1113 {
1114 long i;
1115
1116 for (i = 0; i < ntrec; i++)
1117 ((struct s_spcl *)&tapebuf[i * TP_BSIZE])->c_magic = 0;
1118 blkcnt = 0;
1119 #ifdef RRESTORE
1120 if (host)
1121 i = rmtread(tapebuf, ntrec * TP_BSIZE);
1122 else
1123 #endif
1124 i = read(mt, tapebuf, ntrec * TP_BSIZE);
1125
1126 if (i <= 0) {
1127 fprintf(stderr, "tape read error: %s\n", strerror(errno));
1128 exit(1);
1129 }
1130 if (i % TP_BSIZE != 0) {
1131 fprintf(stderr, "Tape block size (%ld) %s (%ld)\n",
1132 (long)i, "is not a multiple of dump block size",
1133 (long)TP_BSIZE);
1134 exit(1);
1135 }
1136 ntrec = i / TP_BSIZE;
1137 numtrec = ntrec;
1138 vprintf(stdout, "Tape block size is %d\n", ntrec);
1139 }
1140
1141 void
1142 closemt(void)
1143 {
1144
1145 if (mt < 0)
1146 return;
1147 #ifdef RRESTORE
1148 if (host)
1149 rmtclose();
1150 else
1151 #endif
1152 (void) close(mt);
1153 }
1154
1155 /*
1156 * Read the next block from the tape.
1157 * Check to see if it is one of several vintage headers.
1158 * If it is an old style header, convert it to a new style header.
1159 * If it is not any valid header, return an error.
1160 */
1161 static int
1162 gethead(struct s_spcl *buf)
1163 {
1164 union u_ospcl u_ospcl;
1165
1166 if (!cvtflag) {
1167 readtape((char *)buf);
1168 if (buf->c_magic != NFS_MAGIC &&
1169 buf->c_magic != FS_UFS2_MAGIC) {
1170 if (bswap32(buf->c_magic) != NFS_MAGIC &&
1171 bswap32(buf->c_magic) != FS_UFS2_MAGIC)
1172 return (FAIL);
1173 if (!Bcvt) {
1174 vprintf(stdout, "Note: Doing Byte swapping\n");
1175 Bcvt = 1;
1176 }
1177 }
1178 if (checksum((int *)buf) == FAIL)
1179 return (FAIL);
1180 if (Bcvt)
1181 swap_header(buf);
1182 goto good;
1183 }
1184
1185 readtape((char *)(&u_ospcl.s_ospcl));
1186 if (checksum((int *)(&u_ospcl.s_ospcl)) == FAIL)
1187 return (FAIL);
1188 if (u_ospcl.s_ospcl.c_magic != OFS_MAGIC) {
1189 if (bswap32(u_ospcl.s_ospcl.c_magic) != OFS_MAGIC)
1190 return (FAIL);
1191 if (!Bcvt) {
1192 vprintf(stdout, "Note: Doing Byte swapping\n");
1193 Bcvt = 1;
1194 }
1195 swap_old_header(&u_ospcl.s_ospcl);
1196 }
1197
1198 memset(buf, 0, TP_BSIZE);
1199 buf->c_type = u_ospcl.s_ospcl.c_type;
1200 buf->c_date = u_ospcl.s_ospcl.c_date;
1201 buf->c_ddate = u_ospcl.s_ospcl.c_ddate;
1202 buf->c_volume = u_ospcl.s_ospcl.c_volume;
1203 buf->c_tapea = u_ospcl.s_ospcl.c_tapea;
1204 buf->c_inumber = u_ospcl.s_ospcl.c_inumber;
1205 buf->c_checksum = u_ospcl.s_ospcl.c_checksum;
1206 buf->c_mode = u_ospcl.s_ospcl.c_odinode.odi_mode;
1207 buf->c_uid = u_ospcl.s_ospcl.c_odinode.odi_uid;
1208 buf->c_gid = u_ospcl.s_ospcl.c_odinode.odi_gid;
1209 buf->c_size = u_ospcl.s_ospcl.c_odinode.odi_size;
1210 buf->c_rdev = u_ospcl.s_ospcl.c_odinode.odi_rdev;
1211 buf->c_atime = u_ospcl.s_ospcl.c_odinode.odi_atime;
1212 buf->c_mtime = u_ospcl.s_ospcl.c_odinode.odi_mtime;
1213 buf->c_count = u_ospcl.s_ospcl.c_count;
1214 memmove(buf->c_addr, u_ospcl.s_ospcl.c_addr, (long)256);
1215 buf->c_magic = FS_UFS2_MAGIC;
1216 good:
1217 switch (buf->c_type) {
1218
1219 case TS_CLRI:
1220 case TS_BITS:
1221 /*
1222 * Have to patch up missing information in bit map headers
1223 */
1224 buf->c_inumber = 0;
1225 buf->c_size = buf->c_count * TP_BSIZE;
1226 break;
1227
1228 case TS_TAPE:
1229 if ((buf->c_flags & DR_NEWINODEFMT) == 0)
1230 oldinofmt = 1;
1231 /* fall through */
1232 case TS_END:
1233 buf->c_inumber = 0;
1234 break;
1235
1236 case TS_INODE:
1237 if (buf->c_magic == NFS_MAGIC) {
1238 buf->c_tapea = buf->c_old_tapea;
1239 buf->c_firstrec = buf->c_old_firstrec;
1240 buf->c_date = buf->c_old_date;
1241 buf->c_ddate = buf->c_old_ddate;
1242 buf->c_atime = buf->c_old_atime;
1243 buf->c_mtime = buf->c_old_mtime;
1244 buf->c_birthtime = 0;
1245 buf->c_birthtimensec = 0;
1246 buf->c_atimensec = buf->c_mtimensec = 0;
1247 }
1248
1249 case TS_ADDR:
1250 break;
1251
1252 default:
1253 panic("gethead: unknown inode type %d\n", buf->c_type);
1254 break;
1255 }
1256
1257 buf->c_magic = FS_UFS2_MAGIC;
1258
1259 /*
1260 * If we are restoring a filesystem with old format inodes,
1261 * copy the uid/gid to the new location.
1262 */
1263 if (oldinofmt) {
1264 buf->c_uid = buf->c_spare1[1];
1265 buf->c_gid = buf->c_spare1[2];
1266 }
1267 if (dflag)
1268 accthdr(buf);
1269 return(GOOD);
1270 }
1271
1272 /*
1273 * Check that a header is where it belongs and predict the next header
1274 */
1275 static void
1276 accthdr(struct s_spcl *header)
1277 {
1278 static ino_t previno = 0x7fffffff;
1279 static int prevtype;
1280 static long predict;
1281 long blks, i;
1282
1283 if (header->c_type == TS_TAPE) {
1284 fprintf(stderr, "Volume header (%s inode format) ",
1285 oldinofmt ? "old" : "new");
1286 if (header->c_firstrec)
1287 fprintf(stderr, "begins with record %lld",
1288 (long long)header->c_firstrec);
1289 fprintf(stderr, "\n");
1290 previno = 0x7fffffff;
1291 return;
1292 }
1293 if (previno == 0x7fffffff)
1294 goto newcalc;
1295 switch (prevtype) {
1296 case TS_BITS:
1297 fprintf(stderr, "Dumped inodes map header");
1298 break;
1299 case TS_CLRI:
1300 fprintf(stderr, "Used inodes map header");
1301 break;
1302 case TS_INODE:
1303 fprintf(stderr, "File header, ino %llu",
1304 (unsigned long long)previno);
1305 break;
1306 case TS_ADDR:
1307 fprintf(stderr, "File continuation header, ino %llu",
1308 (unsigned long long)previno);
1309 break;
1310 case TS_END:
1311 fprintf(stderr, "End of tape header");
1312 break;
1313 }
1314 if (predict != blksread - 1)
1315 fprintf(stderr, "; predicted %ld blocks, got %ld blocks",
1316 (long)predict, (long)(blksread - 1));
1317 fprintf(stderr, "\n");
1318 newcalc:
1319 blks = 0;
1320 switch (header->c_type) {
1321 case TS_END:
1322 break;
1323 case TS_CLRI:
1324 case TS_BITS:
1325 blks = header->c_count;
1326 break;
1327 default:
1328 for (i = 0; i < header->c_count; i++)
1329 if (header->c_addr[i] != 0)
1330 blks++;
1331 break;
1332 }
1333 predict = blks;
1334 blksread = 0;
1335 prevtype = header->c_type;
1336 previno = header->c_inumber;
1337 }
1338
1339 /*
1340 * Find an inode header.
1341 * Complain if had to skip, and complain is set.
1342 */
1343 static void
1344 findinode(struct s_spcl *header)
1345 {
1346 static long skipcnt = 0;
1347 long i;
1348 char buf[TP_BSIZE];
1349
1350 curfile.name = "<name unknown>";
1351 curfile.action = UNKNOWN;
1352 curfile.mode = 0;
1353 curfile.ino = 0;
1354 top:
1355 do {
1356 if (header->c_magic != FS_UFS2_MAGIC) {
1357 skipcnt++;
1358 while (gethead(header) == FAIL ||
1359 header->c_date != dumpdate)
1360 skipcnt++;
1361 }
1362 switch (header->c_type) {
1363
1364 case TS_ADDR:
1365 /*
1366 * Skip up to the beginning of the next record
1367 */
1368 for (i = 0; i < header->c_count; i++)
1369 if (header->c_addr[i])
1370 readtape(buf);
1371 while (gethead(header) == FAIL ||
1372 header->c_date != dumpdate)
1373 skipcnt++;
1374 /* We've read a header; don't drop it. */
1375 goto top;
1376
1377 case TS_INODE:
1378 curfile.mode = header->c_mode;
1379 curfile.uid = header->c_uid;
1380 curfile.gid = header->c_gid;
1381 curfile.file_flags = header->c_file_flags;
1382 curfile.rdev = header->c_rdev;
1383 curfile.atime_sec = header->c_atime;
1384 curfile.atime_nsec = header->c_atimensec;
1385 curfile.mtime_sec = header->c_mtime;
1386 curfile.mtime_nsec = header->c_mtimensec;
1387 curfile.birthtime_sec = header->c_birthtime;
1388 curfile.birthtime_nsec = header->c_birthtimensec;
1389 curfile.size = header->c_size;
1390 curfile.ino = header->c_inumber;
1391 break;
1392
1393 case TS_END:
1394 curfile.ino = maxino;
1395 break;
1396
1397 case TS_CLRI:
1398 curfile.name = "<file removal list>";
1399 break;
1400
1401 case TS_BITS:
1402 curfile.name = "<file dump list>";
1403 break;
1404
1405 case TS_TAPE:
1406 panic("unexpected tape header\n");
1407 break;
1408
1409 default:
1410 panic("unknown tape header type %d\n", spcl.c_type);
1411 break;
1412
1413 }
1414 } while (header->c_type == TS_ADDR);
1415 if (skipcnt > 0)
1416 fprintf(stderr, "resync restore, skipped %ld blocks\n",
1417 (long)skipcnt);
1418 skipcnt = 0;
1419 }
1420
1421 static int
1422 checksum(int *buf)
1423 {
1424 int i, j;
1425
1426 j = sizeof(union u_spcl) / sizeof(int);
1427 i = 0;
1428 if(!Bcvt) {
1429 do
1430 i += *buf++;
1431 while (--j);
1432 } else {
1433 do
1434 i += bswap32(*buf++);
1435 while (--j);
1436 }
1437
1438 if (i != CHECKSUM) {
1439 fprintf(stderr, "Checksum error %o, inode %llu file %s\n", i,
1440 (unsigned long long)curfile.ino, curfile.name);
1441 return(FAIL);
1442 }
1443 return(GOOD);
1444 }
1445
1446 #ifdef RRESTORE
1447 #include <stdarg.h>
1448
1449 void
1450 msg(const char *fmt, ...)
1451 {
1452 va_list ap;
1453
1454 va_start(ap, fmt);
1455 (void)vfprintf(stderr, fmt, ap);
1456 va_end(ap);
1457 }
1458 #endif /* RRESTORE */
1459
1460 static void
1461 swap_header(struct s_spcl *s)
1462 {
1463 s->c_type = bswap32(s->c_type);
1464 s->c_old_date = bswap32(s->c_old_date);
1465 s->c_old_ddate = bswap32(s->c_old_ddate);
1466 s->c_volume = bswap32(s->c_volume);
1467 s->c_old_tapea = bswap32(s->c_old_tapea);
1468 s->c_inumber = bswap32(s->c_inumber);
1469 s->c_magic = bswap32(s->c_magic);
1470 s->c_checksum = bswap32(s->c_checksum);
1471
1472 s->c_mode = bswap16(s->c_mode);
1473 s->c_size = bswap64(s->c_size);
1474 s->c_old_atime = bswap32(s->c_old_atime);
1475 s->c_atimensec = bswap32(s->c_atimensec);
1476 s->c_old_mtime = bswap32(s->c_old_mtime);
1477 s->c_mtimensec = bswap32(s->c_mtimensec);
1478 s->c_rdev = bswap32(s->c_rdev);
1479 s->c_birthtimensec = bswap32(s->c_birthtimensec);
1480 s->c_birthtime = bswap64(s->c_birthtime);
1481 s->c_atime = bswap64(s->c_atime);
1482 s->c_mtime = bswap64(s->c_mtime);
1483 s->c_file_flags = bswap32(s->c_file_flags);
1484 s->c_uid = bswap32(s->c_uid);
1485 s->c_gid = bswap32(s->c_gid);
1486
1487 s->c_count = bswap32(s->c_count);
1488 s->c_level = bswap32(s->c_level);
1489 s->c_flags = bswap32(s->c_flags);
1490 s->c_old_firstrec = bswap32(s->c_old_firstrec);
1491
1492 s->c_date = bswap64(s->c_date);
1493 s->c_ddate = bswap64(s->c_ddate);
1494 s->c_tapea = bswap64(s->c_tapea);
1495 s->c_firstrec = bswap64(s->c_firstrec);
1496
1497 /*
1498 * These are ouid and ogid.
1499 */
1500 s->c_spare1[1] = bswap16(s->c_spare1[1]);
1501 s->c_spare1[2] = bswap16(s->c_spare1[2]);
1502 }
1503
1504 static void
1505 swap_old_header(struct s_ospcl *os)
1506 {
1507 os->c_type = bswap32(os->c_type);
1508 os->c_date = bswap32(os->c_date);
1509 os->c_ddate = bswap32(os->c_ddate);
1510 os->c_volume = bswap32(os->c_volume);
1511 os->c_tapea = bswap32(os->c_tapea);
1512 os->c_inumber = bswap16(os->c_inumber);
1513 os->c_magic = bswap32(os->c_magic);
1514 os->c_checksum = bswap32(os->c_checksum);
1515
1516 os->c_odinode.odi_mode = bswap16(os->c_odinode.odi_mode);
1517 os->c_odinode.odi_nlink = bswap16(os->c_odinode.odi_nlink);
1518 os->c_odinode.odi_uid = bswap16(os->c_odinode.odi_uid);
1519 os->c_odinode.odi_gid = bswap16(os->c_odinode.odi_gid);
1520
1521 os->c_odinode.odi_size = bswap32(os->c_odinode.odi_size);
1522 os->c_odinode.odi_rdev = bswap32(os->c_odinode.odi_rdev);
1523 os->c_odinode.odi_atime = bswap32(os->c_odinode.odi_atime);
1524 os->c_odinode.odi_mtime = bswap32(os->c_odinode.odi_mtime);
1525 os->c_odinode.odi_ctime = bswap32(os->c_odinode.odi_ctime);
1526
1527 os->c_count = bswap32(os->c_count);
1528 }
NetBSD on the FriendlyARM MINI2440