2 * Ported to Linux's Second Extended File System as part of the
3 * dump and restore backup suit
4 * Remy Card <card@Linux.EU.Org>, 1994-1997
5 * Stelian Pop <stelian@popies.net>, 1999-2000
6 * Stelian Pop <stelian@popies.net> - AlcĂ´ve <www.alcove.com>, 2000-2002
10 * Copyright (c) 1983, 1993
11 * The Regents of the University of California. All rights reserved.
12 * (c) UNIX System Laboratories, Inc.
13 * All or some portions of this file are derived from material licensed
14 * to the University of California by American Telephone and Telegraph
15 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
16 * the permission of UNIX System Laboratories, Inc.
18 * Redistribution and use in source and binary forms, with or without
19 * modification, are permitted provided that the following conditions
21 * 1. Redistributions of source code must retain the above copyright
22 * notice, this list of conditions and the following disclaimer.
23 * 2. Redistributions in binary form must reproduce the above copyright
24 * notice, this list of conditions and the following disclaimer in the
25 * documentation and/or other materials provided with the distribution.
26 * 3. Neither the name of the University nor the names of its contributors
27 * may be used to endorse or promote products derived from this software
28 * without specific prior written permission.
30 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
31 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
32 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
34 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
36 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
37 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
38 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
39 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
44 static const char rcsid[] =
45 "$Id: tape.c,v 1.92 2007/02/22 20:16:23 stelian Exp $";
49 #include <compatlfs.h>
50 #include <sys/types.h>
52 #include <compaterr.h>
60 #include <sys/param.h>
68 #ifdef HAVE_EXT2FS_EXT2_FS_H
69 #include <ext2fs/ext2_fs.h>
71 #include <linux/ext2_fs.h>
73 #include <ext2fs/ext2fs.h>
74 #include <bsdcompat.h>
77 #define quad_t int64_t
79 #include <sys/fcntl.h>
80 #include <bsdcompat.h>
82 #include <ufs/ufs/dinode.h>
84 #endif /* __linux__ */
88 #include <protocols/dumprestore.h>
92 #endif /* HAVE_ZLIB */
96 #endif /* HAVE_BZLIB */
100 #endif /* HAVE_LZO */
104 #include "pathnames.h"
107 int noresyncmesg = 0;
109 static long fssize = MAXBSIZE;
112 static int magtapein = 0; /* input is from magtape */
113 static char magtape[MAXPATHLEN];
114 static char magtapeprefix[MAXPATHLEN];
117 static char *tapebuf; /* input buffer for read */
118 static int bufsize; /* buffer size without prefix */
119 static char *tbufptr = NULL; /* active tape buffer */
120 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
121 static char *comprbuf; /* uncompress work buf */
122 static size_t comprlen; /* size including prefix */
124 static union u_spcl endoftapemark;
125 static long blksread; /* blocks read since last header */
126 static long tpblksread = 0; /* TP_BSIZE blocks read */
127 static long tapesread;
128 static sigjmp_buf restart;
129 static int gettingfile = 0; /* restart has a valid frame */
134 static char lnkbuf[MAXPATHLEN + 1];
137 int oldinofmt; /* old inode format conversion required */
138 int Bcvt; /* Swap Bytes (for CCI or sun) */
139 static int Qcvt; /* Swap quads (for sun) */
141 #define FLUSHTAPEBUF() blkcnt = ntrec + 1
143 static void accthdr __P((struct s_spcl *));
144 static int checksum __P((int *));
145 static void findinode __P((struct s_spcl *));
146 static void findtapeblksize __P((void));
147 static int gethead __P((struct s_spcl *));
148 static int converthead __P((struct s_spcl *));
149 static void converttapebuf __P((struct tapebuf *));
150 static void readtape __P((char *));
151 static void setdumpnum __P((void));
153 static void xtrfilefinderinfo __P((char *, size_t));
156 static u_int swabi __P((u_int));
158 static u_long swabl __P((u_long));
160 static u_char *swab64 __P((u_char *, int));
161 static u_char *swab32 __P((u_char *, int));
162 static u_char *swab16 __P((u_char *, int));
163 static void terminateinput __P((void));
164 static void xtrfile __P((char *, size_t));
165 static void xtrlnkfile __P((char *, size_t));
166 static void xtrlnkskip __P((char *, size_t));
167 static void xtrmap __P((char *, size_t));
168 static void xtrmapskip __P((char *, size_t));
169 static void xtrskip __P((char *, size_t));
170 static void xtrxattr __P((char *, size_t));
171 static void setmagtapein __P((void));
172 static int extractattr __P((char *));
173 static void compareattr __P((char *));
175 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
176 static void newcomprbuf __P((int));
177 static void (*readtape_func) __P((char *));
178 static void readtape_set __P((char *));
179 static void readtape_uncompr __P((char *));
180 static void readtape_comprfile __P((char *));
181 static void readtape_comprtape __P((char *));
182 static char *decompress_tapebuf __P((struct tapebuf *, int));
183 static void msg_read_error __P((char *));
185 static int read_a_block __P((int, char *, size_t, long *));
186 #define PREFIXSIZE sizeof(struct tapebuf)
188 #define COMPARE_ONTHEFLY 1
191 static int ifile; /* input file for compare */
192 static int cmperror; /* compare error */
193 static void xtrcmpfile __P((char *, size_t));
194 static void xtrcmpskip __P((char *, size_t));
197 static int readmapflag;
198 static int readingmaps; /* set to 1 while reading the maps */
200 static char xattrbuf[XATTR_MAXSIZE];
204 static DumpFinderInfo gFndrInfo;
208 * Set up an input source. This is called from main.c before setup() is.
211 setinput(char *source)
220 newtapebuf(NTREC > HIGHDENSITYTREC ? NTREC : HIGHDENSITYTREC);
224 if ((n = strchr(source, ':'))) {
225 for (i = 0; i < (n - source); i++) {
226 if (source[i] == '/')
229 if (source[i] != '/') {
231 source = strchr(host, ':');
233 if (rmthost(host) == 0)
238 if (strcmp(source, "-") == 0) {
240 * Since input is coming from a pipe we must establish
241 * our own connection to the terminal.
243 terminal = fopen(_PATH_TTY, "r");
244 if (terminal == NULL) {
245 warn("cannot open %s", _PATH_TTY);
246 terminal = fopen(_PATH_DEVNULL, "r");
247 if (terminal == NULL)
248 err(1, "cannot open %s", _PATH_DEVNULL);
252 setuid(getuid()); /* no longer need or want root privileges */
254 strncpy(magtapeprefix, source, MAXPATHLEN);
255 magtapeprefix[MAXPATHLEN-1] = '\0';
256 snprintf(magtape, MAXPATHLEN, "%s%03d", source, 1);
259 strncpy(magtape, source, MAXPATHLEN);
260 magtape[MAXPATHLEN - 1] = '\0';
264 newtapebuf(long size)
266 static int tapebufsize = -1;
269 bufsize = ntrec * TP_BSIZE;
270 if (size <= tapebufsize)
274 tapebuf = malloc(size * TP_BSIZE + sizeof(struct tapebuf));
276 errx(1, "Cannot allocate space for tape buffer");
280 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
282 newcomprbuf(int size)
284 size_t buf_size = (size+1) * TP_BSIZE + sizeof(struct tapebuf);
285 if (buf_size <= comprlen)
288 if (comprbuf != NULL)
290 comprbuf = malloc(comprlen);
291 if (comprbuf == NULL)
292 errx(1, "Cannot allocate space for decompress buffer");
294 #endif /* HAVE_ZLIB || HAVE_BZLIB || HAVE_LZO */
297 * Verify that the tape drive can be accessed and
298 * that it actually is a dump tape.
303 int i, j, *ip, bot_code;
307 Vprintf(stdout, "Verify tape and initialize maps\n");
308 if (Afile == NULL && bot_script) {
309 msg("Launching %s\n", bot_script);
310 bot_code = system_command(bot_script, magtape, 1);
311 if (bot_code != 0 && bot_code != 1) {
312 msg("Restore aborted by the beginning of tape script\n");
324 mt = rmtopen(temptape, O_RDONLY);
330 mt = OPEN(temptape, O_RDONLY, 0);
332 err(1, "%s", temptape);
338 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
339 readtape_func = readtape_set;
340 #if defined(HAVE_LZO)
341 if (lzo_init() != LZO_E_OK) {
342 msg("internal error - lzo_init failed \n");
350 if (gethead(&spcl) == FAIL) {
351 blkcnt--; /* push back this block */
355 if (gethead(&spcl) == FAIL)
356 errx(1, "Tape is not a dump tape");
357 fprintf(stderr, "Converting to new file system format.\n");
361 fprintf(stderr, "Dump tape is compressed.\n");
362 #if !defined(HAVE_ZLIB) && !defined(HAVE_BZLIB) && !defined(HAVE_LZO)
363 errx(1,"This restore version doesn't support decompression");
364 #endif /* !HAVE_ZLIB && !HAVE_BZLIB */
367 endoftapemark.s_spcl.c_magic = cvtflag ? OFS_MAGIC : NFS_MAGIC;
368 endoftapemark.s_spcl.c_type = TS_END;
369 ip = (int *)&endoftapemark;
370 j = sizeof(union u_spcl) / sizeof(int);
375 endoftapemark.s_spcl.c_checksum = CHECKSUM - i;
377 if (vflag || command == 't' || command == 'C')
380 if (tapeposflag && (unsigned long)spcl.c_date != qfadumpdate)
381 errx(1, "different QFA/dumpdates detected\n");
383 if (filesys[0] == '\0') {
385 strncpy(filesys, spcl.c_filesys, NAMELEN);
386 filesys[NAMELEN - 1] = '\0';
387 dirptr = strstr(filesys, " (dir");
391 dumptime = spcl.c_ddate;
392 dumpdate = spcl.c_date;
393 if (STAT(".", &stbuf) < 0)
394 err(1, "cannot stat .");
395 if (stbuf.st_blksize > 0 && stbuf.st_blksize < TP_BSIZE )
397 if (stbuf.st_blksize >= TP_BSIZE && stbuf.st_blksize <= MAXBSIZE)
398 fssize = stbuf.st_blksize;
399 if (((fssize - 1) & fssize) != 0)
400 errx(1, "bad block size %ld", fssize);
401 if (spcl.c_volume != 1)
402 errx(1, "Tape is not volume 1 of the dump");
403 if (gethead(&spcl) == FAIL) {
404 Dprintf(stdout, "header read failed at %ld blocks\n", (long)blksread);
405 panic("no header after volume mark!\n");
409 if (spcl.c_type != TS_CLRI)
410 errx(1, "Cannot find file removal list");
411 maxino = (spcl.c_count * TP_BSIZE * NBBY) + 1;
412 map = calloc((unsigned)1, (unsigned)howmany(maxino, NBBY));
414 errx(1, "no memory for active inode map");
416 curfile.action = USING;
417 getfile(xtrmap, xtrmapskip);
418 while (spcl.c_type == TS_ADDR) {
419 /* Recompute maxino and the map */
420 dump_ino_t oldmaxino = maxino;
421 maxino += (spcl.c_count * TP_BSIZE * NBBY) + 1;
422 resizemaps(oldmaxino, maxino);
425 spcl.c_dinode.di_size = spcl.c_count * TP_BSIZE;
426 getfile(xtrmap, xtrmapskip);
428 Dprintf(stdout, "maxino = %lu\n", (unsigned long)maxino);
429 if (spcl.c_type != TS_BITS) {
430 if (spcl.c_type == TS_END) {
431 msg("Cannot find file dump list, assuming empty tape\n");
434 errx(1, "Cannot find file dump list");
436 map = calloc((unsigned)1, (unsigned)howmany(maxino, NBBY));
437 if (map == (char *)NULL)
438 errx(1, "no memory for file dump list");
440 curfile.action = USING;
441 getfile(xtrmap, xtrmapskip);
442 while (spcl.c_type == TS_ADDR) {
443 spcl.c_dinode.di_size = spcl.c_count * TP_BSIZE;
444 getfile(xtrmap, xtrmapskip);
447 * If there may be whiteout entries on the tape, pretend that the
448 * whiteout inode exists, so that the whiteout entries can be
452 SETINO(WINO, dumpmap);
458 * Prompt user to load a new dump volume.
459 * "Nextvol" is the next suggested volume to use.
460 * This suggested volume is enforced when doing full
461 * or incremental restores, but can be overridden by
462 * the user when only extracting a subset of the files.
467 long newvol = 0, wantnext = 0, i;
468 long saved_blksread = 0, saved_tpblksread = 0;
469 union u_spcl tmpspcl;
470 # define tmpbuf tmpspcl.s_spcl
472 int haderror = 0, bot_code = 1;
482 panic("Changing volumes on pipe input?\n");
487 saved_blksread = blksread;
488 saved_tpblksread = tpblksread;
489 #if defined(USE_QFA) && defined(sunos)
490 if (createtapeposflag || tapeposflag)
495 exit(1); /* pipes do not get a second chance */
496 if (aflag || curfile.action != SKIP) {
503 while (newvol <= 0) {
504 if (tapesread == 0) {
505 fprintf(stderr, "%s%s%s%s%s",
506 "You have not read any volumes yet.\n",
507 "Unless you know which volume your",
508 " file(s) are on you should start\n",
509 "with the last volume and work",
510 " towards the first.\n");
512 fprintf(stderr, "You have read volumes");
514 for (i = 1; i < 32; i++)
515 if (tapesread & (1 << i)) {
516 fprintf(stderr, "%s%ld", buf, (long)i);
519 fprintf(stderr, "\n");
522 fprintf(stderr, "Specify next volume # (none if no more volumes): ");
523 (void) fflush(stderr);
524 (void) fgets(buf, TP_BSIZE, terminal);
525 } while (!feof(terminal) && buf[0] == '\n');
528 if (!strcmp(buf, "none\n")) {
535 "Volume numbers are positive numerics\n");
538 if (newvol == volno) {
539 tapesread |= 1 << volno;
540 #if defined(USE_QFA) && defined(sunos)
541 if (createtapeposflag || tapeposflag) {
542 if (OpenSMTCmt(magtape) < 0) {
554 * if using an archive file, reset its name so readtape()
555 * could properly use remote access.
560 snprintf(magtape, MAXPATHLEN, "%s%03ld", magtapeprefix, newvol);
561 magtape[MAXPATHLEN - 1] = '\0';
563 if (bot_script && !haderror) {
564 msg("Launching %s\n", bot_script);
565 bot_code = system_command(bot_script, magtape, newvol);
566 if (bot_code != 0 && bot_code != 1) {
567 msg("Restore aborted by the beginning of tape script\n");
571 if (haderror || (bot_code && !Mflag)) {
574 fprintf(stderr, "%d compare errors so far\n", compare_errors);
576 fprintf(stderr, "Mount volume %ld\n", (long)newvol);
578 fprintf(stderr, "Mount tape volume %ld\n", (long)newvol);
580 fprintf(stderr, "Enter ``none'' if there are no more tapes\n");
582 fprintf(stderr, "then enter volume name (default: %s) ", magtape);
584 fprintf(stderr, "otherwise enter tape name (default: %s) ", magtape);
586 (void) fflush(stderr);
587 (void) fgets(buf, TP_BSIZE, terminal);
590 if (!strcmp(buf, "none\n")) {
594 if (buf[0] != '\n') {
596 (void) strncpy(magtape, buf, sizeof(magtape));
597 magtape[sizeof(magtape) - 1] = '\0';
598 if ((pos = strchr(magtape, '\n')))
599 magtape[pos - magtape] = '\0';
602 #if defined(USE_QFA) && defined(sunos)
603 if (createtapeposflag || tapeposflag) {
604 if (OpenSMTCmt(magtape) < 0) {
613 mt = rmtopen(magtape, O_RDONLY);
616 mt = OPEN(magtape, O_RDONLY, 0);
619 fprintf(stderr, "Cannot open %s\n", magtape);
626 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
627 readtape_func = readtape_set;
633 if (gethead(&tmpbuf) == FAIL) {
634 Dprintf(stdout, "header read failed at %ld blocks\n", (long)blksread);
635 fprintf(stderr, "tape is not dump tape\n");
638 blksread = saved_blksread;
639 tpblksread = saved_tpblksread;
642 if (tmpbuf.c_volume != volno) {
643 fprintf(stderr, "Wrong volume (%d)\n", tmpbuf.c_volume);
646 blksread = saved_blksread;
647 tpblksread = saved_tpblksread;
650 if (tmpbuf.c_date != dumpdate || tmpbuf.c_ddate != dumptime) {
651 fprintf(stderr, "Wrong dump date\n\tgot: %s",
653 ctime(&tmpbuf.c_date));
655 ctime4(&tmpbuf.c_date));
657 fprintf(stderr, "\twanted: %s", ctime(&dumpdate));
660 blksread = saved_blksread;
661 tpblksread = saved_tpblksread;
664 tapesread |= 1 << volno;
666 * If continuing from the previous volume, skip over any
667 * blocks read already at the end of the previous volume.
669 * If coming to this volume at random, skip to the beginning
670 * of the next record.
673 fprintf(stderr, "Dump tape is compressed.\n");
674 #if !defined(HAVE_ZLIB) && !defined(HAVE_BZLIB) && !defined(HAVE_LZO)
675 errx(1,"This restore version doesn't support decompression");
676 #endif /* !HAVE_ZLIB && !HAVE_BZLIB */
678 Dprintf(stdout, "read %ld recs, tape starts with %ld\n",
679 tpblksread - 1, (long)tmpbuf.c_firstrec);
680 if (tmpbuf.c_type == TS_TAPE && (tmpbuf.c_flags & DR_NEWHEADER)) {
682 tpblksread = tmpbuf.c_firstrec + 1;
683 for (i = tmpbuf.c_count; i > 0; i--)
685 } else if (tmpbuf.c_firstrec > 0 &&
686 tmpbuf.c_firstrec < tpblksread - 1) {
688 * -1 since we've read the volume header
690 i = tpblksread - tmpbuf.c_firstrec - 1;
691 Dprintf(stderr, "Skipping %ld duplicate record%s.\n",
692 (long)i, i > 1 ? "s" : "");
697 if (curfile.action == USING) {
699 panic("active file into volume 1\n");
703 * Skip up to the beginning of the next record
705 if (tmpbuf.c_type == TS_TAPE && (tmpbuf.c_flags & DR_NEWHEADER))
706 for (i = tmpbuf.c_count; i > 0; i--)
708 (void) gethead(&spcl);
712 siglongjmp(restart, 1);
717 * Handle unexpected EOF.
723 if (gettingfile && curfile.action == USING) {
724 printf("Warning: %s %s\n",
725 "End-of-input encountered while extracting", curfile.name);
727 curfile.name = "<name unknown>";
728 curfile.action = UNKNOWN;
730 curfile.ino = maxino;
733 siglongjmp(restart, 1);
738 * handle multiple dumps per tape by skipping forward to the
746 if (dumpnum == 1 || volno != 1)
749 errx(1, "Cannot have multiple dumps on pipe input");
751 tcom.mt_count = dumpnum - 1;
754 if (rmtioctl(MTFSF, dumpnum - 1) < 0) {
755 fprintf(stderr, "rmtioctl MTFSF: %s\n", strerror(errno));
760 if (ioctl(mt, (int)MTIOCTOP, (char *)&tcom) < 0) {
761 fprintf(stderr, "rmtioctl MTFSF: %s\n", strerror(errno));
763 /* warn("ioctl MTFSF"); */
771 Vprintf(stdout, "Dump date: %s", ctime(&spcl.c_date));
772 Vprintf(stdout, "Dumped from: %s",
773 (spcl.c_ddate == 0) ? "the epoch\n" : ctime(&spcl.c_ddate));
774 if (spcl.c_host[0] == '\0')
776 Vprintf(stdout, "Level %d dump of %s on %s:%s\n",
777 spcl.c_level, spcl.c_filesys, spcl.c_host, spcl.c_dev);
778 Vprintf(stdout, "Label: %s\n", spcl.c_label);
780 fprintf(stdout, "Dump date: %s", ctime4(&spcl.c_date));
781 fprintf(stdout, "Dumped from: %s",
782 (spcl.c_ddate == 0) ? "the epoch\n" : ctime4(&spcl.c_ddate));
783 if (spcl.c_host[0] == '\0')
785 fprintf(stdout, "Level %d dump of %s on %s:%s\n",
786 spcl.c_level, spcl.c_filesys, spcl.c_host, spcl.c_dev);
787 fprintf(stdout, "Label: %s\n", spcl.c_label);
796 if (volinfo[1] == ROOTINO) {
797 printf("Starting inode numbers by volume:\n");
798 for (i = 1; i < (int)TP_NINOS && volinfo[i] != 0; ++i)
799 printf("\tVolume %d: %lu\n", i, (unsigned long)volinfo[i]);
805 extractfile(struct entry *ep, int doremove)
809 struct timeval timep[2];
810 char *name = myname(ep);
812 /* If removal is requested (-r mode) do remove it unless
813 * we are extracting a metadata only inode */
814 if (spcl.c_flags & DR_METAONLY) {
815 Vprintf(stdout, "file %s is metadata only\n", name);
820 ep->e_flags &= ~REMOVED;
825 curfile.action = USING;
826 #if defined(__linux__) || defined(sunos)
827 timep[0].tv_sec = curfile.dip->di_atime.tv_sec;
828 timep[0].tv_usec = curfile.dip->di_atime.tv_usec;
829 timep[1].tv_sec = curfile.dip->di_mtime.tv_sec;
830 timep[1].tv_usec = curfile.dip->di_mtime.tv_usec;
831 #else /* __linux__ || sunos */
832 timep[0].tv_sec = curfile.dip->di_atime;
833 timep[0].tv_usec = curfile.dip->di_atimensec / 1000;
834 timep[1].tv_sec = curfile.dip->di_mtime;
835 timep[1].tv_usec = curfile.dip->di_mtimensec / 1000;
836 #endif /* __linux__ */
837 mode = curfile.dip->di_mode;
838 flags = curfile.dip->di_flags;
839 switch (mode & IFMT) {
842 fprintf(stderr, "%s: unknown file mode 0%o\n", name, mode);
847 Vprintf(stdout, "skipped socket %s\n", name);
855 if (ep == NULL || ep->e_flags & EXTRACT)
856 panic("unextracted directory %s\n", name);
860 Vprintf(stdout, "extract dir %s\n", name);
861 ret = genliteraldir(name, curfile.ino);
869 uid_t luid = curfile.dip->di_uid;
870 gid_t lgid = curfile.dip->di_gid;
872 if (! (spcl.c_flags & DR_METAONLY)) {
875 getfile(xtrlnkfile, xtrlnkskip);
878 "%s: zero length symbolic link (ignored)\n", name);
881 if (linkit(lnkbuf, name, SYMLINK) == FAIL)
888 (void) lchown(name, luid, lgid);
895 Vprintf(stdout, "extract fifo %s\n", name);
900 if (! (spcl.c_flags & DR_METAONLY)) {
903 if (mkfifo(name, mode) < 0) {
904 warn("%s: cannot create fifo", name);
909 (void) chown(name, curfile.dip->di_uid, curfile.dip->di_gid);
910 (void) chmod(name, mode);
915 (void) lsetflags(name, flags);
919 warn("%s: cannot call chflags", name);
920 /* (void) chflags(name, flags); */
923 (void) chflags(name, flags);
931 Vprintf(stdout, "extract special file %s\n", name);
936 if (! (spcl.c_flags & DR_METAONLY)) {
939 if (mknod(name, mode, (int)curfile.dip->di_rdev) < 0) {
940 warn("%s: cannot create special file", name);
945 (void) chown(name, curfile.dip->di_uid, curfile.dip->di_gid);
946 (void) chmod(name, mode);
952 warn("%s: lsetflags called on a special file", name);
953 (void) lsetflags(name, flags);
958 warn("%s: cannot call chflags on a special file", name);
959 /* (void) chflags(name, flags); */
963 warn("%s: chflags called on a special file", name);
964 (void) chflags(name, flags);
973 uid_t luid = curfile.dip->di_uid;
974 gid_t lgid = curfile.dip->di_gid;
976 Vprintf(stdout, "extract file %s\n", name);
981 if (! (spcl.c_flags & DR_METAONLY)) {
984 if ((ofile = OPEN(name, O_WRONLY | O_CREAT | O_TRUNC,
986 warn("%s: cannot create file", name);
990 getfile(xtrfile, xtrskip);
995 (void) chown(name, luid, lgid);
996 (void) chmod(name, mode);
1001 (void) lsetflags(name, flags);
1005 warn("%s: cannot call chflags", name);
1006 /* (void) chflags(name, flags); */
1009 (void) chflags(name, flags);
1019 extractattr(char *path)
1021 while (spcl.c_flags & DR_EXTATTRIBUTES) {
1022 switch (spcl.c_extattributes) {
1023 case EXT_MACOSFNDRINFO:
1025 (void)extractfinderinfoufs(path);
1027 msg("MacOSX not supported in this version, skipping\n");
1031 case EXT_MACOSRESFORK:
1033 (void)extractresourceufs(path);
1035 msg("MacOSX not supported in this version, skipping\n");
1040 char xattr[XATTR_MAXSIZE];
1042 if (readxattr(xattr) == GOOD) {
1043 xattr_extract(path, xattr);
1048 msg("unexpected inode extension %ld, skipping\n", spcl.c_extattributes);
1058 extractfinderinfoufs(char *name)
1061 char oFileRsrc[MAXPATHLEN];
1064 struct timeval timep[2];
1067 char path[MAXPATHLEN], fname[MAXPATHLEN];
1069 curfile.name = name;
1070 curfile.action = USING;
1071 timep[0].tv_sec = curfile.dip->di_atime.tv_sec;
1072 timep[0].tv_usec = curfile.dip->di_atime.tv_usec;
1073 timep[1].tv_sec = curfile.dip->di_mtime.tv_sec;
1074 timep[1].tv_usec = curfile.dip->di_mtime.tv_usec;
1075 mode = curfile.dip->di_mode;
1076 flags = curfile.dip->di_flags;
1077 uid = curfile.dip->di_uid;
1078 gid = curfile.dip->di_gid;
1080 switch (mode & IFMT) {
1083 fprintf(stderr, "%s: (extr. finfoufs) unknown file mode 0%o\n", name, mode);
1088 fprintf(stderr, "%s: (extr. finfoufs[IFDIR]) unknown file mode 0%o\n", name, mode);
1097 Vprintf(stdout, "extract finderinfo file %s\n", name);
1102 getfile(xtrfilefinderinfo, xtrskip);
1104 GetPathFile(name, path, fname);
1105 strcpy(oFileRsrc, path);
1106 strcat(oFileRsrc, "._");
1107 strcat(oFileRsrc, fname);
1109 if ((err = CreateAppleDoubleFileRes(oFileRsrc, &gFndrInfo.fndrinfo,
1110 mode, flags, timep, uid, gid)) != 0) {
1111 fprintf(stderr, "%s: cannot create finderinfo: %s\n",
1112 name, strerror(errno));
1123 extractresourceufs(char *name)
1125 char oFileRsrc[MAXPATHLEN];
1128 struct timeval timep[2];
1129 char path[MAXPATHLEN], fname[MAXPATHLEN];
1139 curfile.name = name;
1140 curfile.action = USING;
1141 timep[0].tv_sec = curfile.dip->di_atime.tv_sec;
1142 timep[0].tv_usec = curfile.dip->di_atime.tv_usec;
1143 timep[1].tv_sec = curfile.dip->di_mtime.tv_sec;
1144 timep[1].tv_usec = curfile.dip->di_mtime.tv_usec;
1145 mode = curfile.dip->di_mode;
1146 flags = curfile.dip->di_flags;
1147 uid = curfile.dip->di_uid;
1148 gid = curfile.dip->di_gid;
1149 di_size = curfile.dip->di_size;
1151 switch (mode & IFMT) {
1154 fprintf(stderr, "%s: (extr. resufs) unknown file mode 0%o\n", name, mode);
1159 fprintf(stderr, "%s: (extr. resufs [IFDIR]) unknown file mode 0%o\n", name, mode);
1168 Vprintf(stdout, "extract resource file %s\n", name);
1174 GetPathFile(name, path, fname);
1175 strcpy(oFileRsrc, path);
1176 strcat(oFileRsrc, "._");
1177 strcat(oFileRsrc, fname);
1179 if ((ofile = open(oFileRsrc, O_RDONLY, 0)) < 0) {
1180 fprintf(stderr, "%s: cannot read finderinfo: %s\n",
1181 name, strerror(errno));
1185 read(ofile, buf, 70);
1186 (void) close(ofile);
1188 hp = (ASDHeaderPtr)p;
1191 p += sizeof(ASDHeader) - CORRECT;
1192 ep = (ASDEntryPtr)p;
1193 /* the finderinfo entry */
1194 ep->offset += sizeof(ASDEntry);
1197 p += sizeof(ASDEntry);
1198 /* the finderinfo data */
1199 bcopy(p, p + sizeof(ASDEntry), INFOLEN);
1200 ep = (ASDEntryPtr)p;
1201 /* the new resourcefork entry */
1202 ep->entryID = EntryRSRCFork;
1203 ep->offset = loff + INFOLEN;
1205 /* write the new appledouble entries to the file */
1206 if ((ofile = open(oFileRsrc, O_WRONLY | O_CREAT | O_TRUNC, 0666)) < 0) {
1207 fprintf(stderr, "%s: cannot create resource file: %s\n",
1208 name, strerror(errno));
1212 write(ofile, buf, 70 + sizeof(ASDEntry));
1213 /* and add the resource data from tape */
1214 getfile(xtrfile, xtrskip);
1216 (void) fchown(ofile, uid, gid);
1217 (void) fchmod(ofile, mode);
1218 (void) close(ofile);
1219 utimes(oFileRsrc, timep);
1220 (void) lsetflags(oFileRsrc, flags);
1225 #endif /* DUMP_MACOSX */
1228 readxattr(char *buffer)
1231 msg("reading EA data for inode %lu\n", curfile.ino);
1233 curfile.name = "EA block";
1234 if (curfile.dip->di_size > XATTR_MAXSIZE) {
1235 fprintf(stderr, "EA size too big (%ld)", (long)curfile.dip->di_size);
1240 memset(xattrbuf, 0, XATTR_MAXSIZE);
1243 getfile(xtrxattr, xtrnull);
1245 memcpy(buffer, xattrbuf, XATTR_MAXSIZE);
1251 * skip over bit maps on the tape
1257 while (spcl.c_type == TS_BITS || spcl.c_type == TS_CLRI)
1262 * skip over a file on the tape
1268 curfile.action = SKIP;
1269 getfile(xtrnull, xtrnull);
1273 * skip over any extended attributes.
1279 while (spcl.c_flags & DR_EXTATTRIBUTES)
1284 * Extract a file from the tape.
1285 * When an allocated block is found it is passed to the fill function;
1286 * when an unallocated block (hole) is found, a zeroed buffer is passed
1287 * to the skip function.
1290 getfile(void (*fill) __P((char *, size_t)), void (*skip) __P((char *, size_t)))
1293 volatile int curblk = 0;
1294 volatile quad_t size = spcl.c_dinode.di_size;
1295 volatile int last_write_was_hole = 0;
1296 quad_t origsize = size;
1297 static char clearedbuf[MAXBSIZE];
1298 char buf[MAXBSIZE / TP_BSIZE][TP_BSIZE];
1299 char junk[TP_BSIZE];
1301 if (spcl.c_type == TS_END)
1302 panic("ran off end of tape\n");
1303 if (spcl.c_magic != NFS_MAGIC)
1304 panic("not at beginning of a file\n");
1305 if (!gettingfile && setjmp(restart) != 0)
1309 for (i = 0; i < spcl.c_count; i++) {
1310 if (readmapflag || spcl.c_addr[i]) {
1311 readtape(&buf[curblk++][0]);
1312 if (curblk == fssize / TP_BSIZE) {
1313 (*fill)((char *)buf, (size_t)(size > TP_BSIZE ?
1314 fssize : (curblk - 1) * TP_BSIZE + size));
1316 last_write_was_hole = 0;
1320 (*fill)((char *)buf, (size_t)(size > TP_BSIZE ?
1322 (curblk - 1) * TP_BSIZE + size));
1325 (*skip)(clearedbuf, (long)(size > TP_BSIZE ?
1327 last_write_was_hole = 1;
1329 if ((size -= TP_BSIZE) <= 0) {
1330 for (i++; i < spcl.c_count; i++)
1331 if (readmapflag || spcl.c_addr[i])
1336 if (gethead(&spcl) == GOOD && size > 0) {
1337 if (spcl.c_type == TS_ADDR)
1340 "Missing address (header) block for %s at %ld blocks\n",
1341 curfile.name, (long)blksread);
1344 (*fill)((char *)buf, (size_t)((curblk * TP_BSIZE) + size));
1345 last_write_was_hole = 0;
1348 fprintf(stderr, "Missing blocks at the end of %s, assuming hole\n", curfile.name);
1350 size_t skp = size > TP_BSIZE ? TP_BSIZE : size;
1351 (*skip)(clearedbuf, skp);
1354 last_write_was_hole = 1;
1356 if (last_write_was_hole) {
1357 FTRUNCATE(ofile, origsize);
1365 * Write out the next block of a file.
1368 xtrfile(char *buf, size_t size)
1373 if (write(ofile, buf, (int) size) == -1)
1374 err(1, "write error extracting inode %lu, name %s\nwrite",
1375 (unsigned long)curfile.ino, curfile.name);
1380 xtrfilefinderinfo(char *buf, size_t size)
1382 bcopy(buf, &gFndrInfo, size);
1384 #endif /* DUMP_MACOSX */
1387 * Skip over a hole in a file.
1391 xtrskip(UNUSED(char *buf), size_t size)
1394 if (LSEEK(ofile, (OFF_T)size, SEEK_CUR) == -1)
1395 err(1, "seek error extracting inode %lu, name %s\nlseek",
1396 (unsigned long)curfile.ino, curfile.name);
1400 * Collect the next block of a symbolic link.
1403 xtrlnkfile(char *buf, size_t size)
1407 if (pathlen > MAXPATHLEN) {
1408 buf[size - 1] = '\0';
1409 errx(1, "symbolic link name: %s->%s%s; too long %d",
1410 curfile.name, lnkbuf, buf, pathlen);
1412 (void) strcat(lnkbuf, buf);
1413 lnkbuf[pathlen] = '\0';
1417 * Skip over a hole in a symbolic link (should never happen).
1421 xtrlnkskip(UNUSED(char *buf), UNUSED(size_t size))
1424 errx(1, "unallocated block in symbolic link %s", curfile.name);
1428 * Collect the next block of a bit map.
1431 xtrmap(char *buf, size_t size)
1434 memmove(map, buf, size);
1439 * Skip over a hole in a bit map (should never happen).
1443 xtrmapskip(UNUSED(char *buf), size_t size)
1446 panic("hole in map\n");
1451 * Noop, when an extraction function is not needed.
1455 xtrnull(UNUSED(char *buf), UNUSED(size_t size))
1461 #if COMPARE_ONTHEFLY
1463 * Compare the next block of a file.
1466 xtrcmpfile(char *buf, size_t size)
1468 static char cmpbuf[MAXBSIZE];
1473 if (read(ifile, cmpbuf, size) != (ssize_t)size) {
1474 fprintf(stderr, "%s: size has changed.\n",
1480 if (memcmp(buf, cmpbuf, size) != 0) {
1481 fprintf(stderr, "%s: tape and disk copies are different\n",
1489 * Skip over a hole in a file.
1492 xtrcmpskip(UNUSED(char *buf), size_t size)
1494 static char cmpbuf[MAXBSIZE];
1500 if (read(ifile, cmpbuf, size) != (ssize_t)size) {
1501 fprintf(stderr, "%s: size has changed.\n",
1507 for (i = 0; i < (int)size; ++i)
1508 if (cmpbuf[i] != '\0') {
1509 fprintf(stderr, "%s: tape and disk copies are different\n",
1515 #endif /* COMPARE_ONTHEFLY */
1518 xtrxattr(char *buf, size_t size)
1520 if (xattrlen + size > XATTR_MAXSIZE) {
1521 fprintf(stderr, "EA size too big (%ld)", (long)xattrlen + size);
1524 memcpy(xattrbuf + xattrlen, buf, size);
1528 #if !COMPARE_ONTHEFLY
1530 do_cmpfiles(int fd_tape, int fd_disk, OFF_T size)
1532 static char buf_tape[BUFSIZ];
1533 static char buf_disk[BUFSIZ];
1538 if ((n_tape = read(fd_tape, buf_tape, sizeof(buf_tape))) < 1) {
1539 close(fd_tape), close(fd_disk);
1540 panic("do_cmpfiles: unexpected EOF[1]");
1542 if ((n_disk = read(fd_disk, buf_disk, sizeof(buf_tape))) < 1) {
1543 close(fd_tape), close(fd_disk);
1544 panic("do_cmpfiles: unexpected EOF[2]");
1546 if (n_tape != n_disk) {
1547 close(fd_tape), close(fd_disk);
1548 panic("do_cmpfiles: sizes different!");
1550 if (memcmp(buf_tape, buf_disk, (size_t)n_tape) != 0) return (1);
1556 /* for debugging compare problems */
1557 #undef COMPARE_FAIL_KEEP_FILE
1560 #ifdef COMPARE_FAIL_KEEP_FILE
1561 /* return true if tapefile should be unlinked after compare */
1566 cmpfiles(char *tapefile, char *diskfile, struct STAT *sbuf_disk)
1568 struct STAT sbuf_tape;
1569 int fd_tape, fd_disk;
1571 if (STAT(tapefile, &sbuf_tape) != 0) {
1572 panic("can't lstat tmp file %s: %s\n", tapefile,
1577 if (sbuf_disk->st_size != sbuf_tape.st_size) {
1579 "%s: size changed from %lld to %lld.\n",
1580 diskfile, (long long)sbuf_tape.st_size, (long long)sbuf_disk->st_size);
1582 #ifdef COMPARE_FAIL_KEEP_FILE
1589 if ((fd_tape = OPEN(tapefile, O_RDONLY)) < 0) {
1590 panic("can't open %s: %s\n", tapefile, strerror(errno));
1593 if ((fd_disk = OPEN(diskfile, O_RDONLY)) < 0) {
1595 panic("can't open %s: %s\n", diskfile, strerror(errno));
1599 if (do_cmpfiles(fd_tape, fd_disk, sbuf_tape.st_size)) {
1600 fprintf(stderr, "%s: tape and disk copies are different\n",
1605 #ifdef COMPARE_FAIL_KEEP_FILE
1606 /* rename the file to live in /tmp */
1607 /* rename `tapefile' to /tmp/<basename of diskfile> */
1609 char *p = strrchr(diskfile, '/');
1610 char newname[MAXPATHLEN];
1612 panic("can't find / in %s\n", diskfile);
1614 snprintf(newname, sizeof(newname), "%s/debug/%s", tmpdir, p + 1);
1615 if (rename(tapefile, newname)) {
1616 panic("rename from %s to %s failed: %s\n",
1620 fprintf(stderr, "*** %s saved to %s\n",
1625 /* don't unlink the file (it's not there anymore */
1634 #ifdef COMPARE_FAIL_KEEP_FILE
1638 #endif /* !COMPARE_ONTHEFLY */
1641 compareattr(char *name)
1645 while (spcl.c_flags & DR_EXTATTRIBUTES) {
1646 switch (spcl.c_extattributes) {
1647 case EXT_MACOSFNDRINFO:
1648 msg("MacOSX not supported for comparision in this version, skipping\n");
1651 case EXT_MACOSRESFORK:
1652 msg("MacOSX not supported for comparision in this version, skipping\n");
1656 char xattr[XATTR_MAXSIZE];
1658 if (readxattr(xattr) == GOOD) {
1659 if (xattr_compare(name, xattr) == FAIL)
1668 msg("unexpected inode extension %ld, skipping\n", spcl.c_extattributes);
1673 if (!xattr_done && xattr_compare(name, NULL) == FAIL)
1677 #if !COMPARE_ONTHEFLY
1678 static char tmpfilename[MAXPATHLEN];
1682 comparefile(char *name)
1688 unsigned long newflags;
1691 #if !COMPARE_ONTHEFLY
1692 static char *tmpfile = NULL;
1695 curfile.name = name;
1696 curfile.action = USING;
1697 mode = curfile.dip->di_mode;
1698 flags = curfile.dip->di_flags;
1699 uid = curfile.dip->di_uid;
1700 gid = curfile.dip->di_gid;
1702 if ((mode & IFMT) == IFSOCK) {
1703 Vprintf(stdout, "skipped socket %s\n", name);
1708 if ((r = LSTAT(name, &sb)) != 0) {
1709 warn("unable to stat %s", name);
1715 Vprintf(stdout, "comparing %s (size: %lld, mode: 0%o)\n", name,
1716 (long long)sb.st_size, mode);
1718 if (sb.st_mode != mode) {
1719 fprintf(stderr, "%s: mode changed from 0%o to 0%o.\n",
1720 name, mode & 07777, sb.st_mode & 07777);
1723 if (sb.st_uid != uid) {
1724 fprintf(stderr, "%s: uid changed from %d to %d.\n",
1725 name, uid, sb.st_uid);
1728 if (sb.st_gid != gid) {
1729 fprintf(stderr, "%s: gid changed from %d to %d.\n",
1730 name, gid, sb.st_gid);
1734 if (lgetflags(name, &newflags) < 0) {
1736 warn("%s: lgetflags failed", name);
1741 if (newflags != flags) {
1742 fprintf(stderr, "%s: flags changed from 0x%08x to 0x%08lx.\n",
1743 name, flags, newflags);
1748 if (spcl.c_flags & DR_METAONLY) {
1752 switch (mode & IFMT) {
1767 char lbuf[MAXPATHLEN + 1];
1770 if (!(sb.st_mode & S_IFLNK)) {
1771 fprintf(stderr, "%s: is no longer a symbolic link\n",
1778 getfile(xtrlnkfile, xtrlnkskip);
1781 "%s: zero length symbolic link (ignored)\n",
1786 if ((lsize = readlink(name, lbuf, MAXPATHLEN)) < 0) {
1787 panic("readlink of %s failed: %s\n", name,
1792 if (strcmp(lbuf, lnkbuf) != 0) {
1794 "%s: symbolic link changed from %s to %s.\n",
1795 name, lnkbuf, lbuf);
1805 if (!(sb.st_mode & (S_IFCHR|S_IFBLK))) {
1806 fprintf(stderr, "%s: no longer a special file\n",
1813 if (sb.st_rdev != (dev_t)curfile.dip->di_rdev) {
1815 "%s: device changed from %d,%d to %d,%d.\n",
1817 major(curfile.dip->di_rdev),
1818 minor(curfile.dip->di_rdev),
1828 #if COMPARE_ONTHEFLY
1829 if ((ifile = OPEN(name, O_RDONLY)) < 0) {
1830 warn("can't open %s", name);
1836 getfile(xtrcmpfile, xtrcmpskip);
1839 if (read(ifile, &c, 1) != 0) {
1840 fprintf(stderr, "%s: size has changed.\n",
1850 if (tmpfile == NULL) {
1851 /* argument to mktemp() must not be in RO space: */
1852 snprintf(tmpfilename, sizeof(tmpfilename), "%s/restoreCXXXXXX", tmpdir);
1853 tmpfile = mktemp(&tmpfilename[0]);
1855 if ((STAT(tmpfile, &stemp) == 0) && (unlink(tmpfile) != 0)) {
1856 panic("cannot delete tmp file %s: %s\n",
1857 tmpfile, strerror(errno));
1859 if ((ofile = OPEN(tmpfile, O_WRONLY | O_CREAT | O_TRUNC, 0600)) < 0) {
1860 panic("cannot create file temp file %s: %s\n",
1861 name, strerror(errno));
1863 getfile(xtrfile, xtrskip);
1864 (void) close(ofile);
1865 #ifdef COMPARE_FAIL_KEEP_FILE
1866 if (cmpfiles(tmpfile, name, &sb))
1869 cmpfiles(tmpfile, name, &sb);
1872 #endif /* COMPARE_ONTHEFLY */
1879 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
1880 static void (*readtape_func)(char *) = readtape_set;
1883 * Read TP_BSIZE blocks from the input.
1884 * Handle read errors, and end of media.
1885 * Decompress compressed blocks.
1890 (*readtape_func)(buf); /* call the actual processing routine */
1894 * Set function pointer for readtape() routine. zflag and magtapein must
1895 * be correctly set before the first call to readtape().
1898 readtape_set(char *buf)
1901 readtape_func = readtape_uncompr;
1905 readtape_func = readtape_comprtape;
1907 readtape_func = readtape_comprfile;
1912 #endif /* HAVE_ZLIB || HAVE_BZLIB || HAVE_LZO */
1915 * This is the original readtape(), it's used for reading uncompressed input.
1916 * Read TP_BSIZE blocks from the input.
1917 * Handle read errors, and end of media.
1920 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
1921 readtape_uncompr(char *buf)
1926 ssize_t rd, newvol, i;
1927 int cnt, seek_failed;
1929 if (blkcnt < numtrec) {
1930 memmove(buf, &tbufptr[(blkcnt++ * TP_BSIZE)], TP_BSIZE);
1936 for (i = 0; i < ntrec; i++)
1937 ((struct s_spcl *)&tapebuf[i * TP_BSIZE])->c_magic = 0;
1940 cnt = ntrec * TP_BSIZE;
1943 if (createtapeposflag)
1944 (void)GetTapePos(&curtapepos);
1949 i = rmtread(&tapebuf[rd], cnt);
1952 i = read(mt, &tapebuf[rd], cnt);
1955 * Check for mid-tape short read error.
1956 * If found, skip rest of buffer and start with the next.
1958 if (!pipein && numtrec < ntrec && i > 0) {
1959 Dprintf(stdout, "mid-media short read error.\n");
1963 * Handle partial block read.
1965 if (pipein && i == 0 && rd > 0)
1967 else if (i > 0 && i != ntrec * TP_BSIZE) {
1976 * Short read. Process the blocks read.
1978 if (i % TP_BSIZE != 0)
1980 "partial block read: %ld should be %ld\n",
1981 (long)i, ntrec * TP_BSIZE);
1982 numtrec = i / TP_BSIZE;
1986 * Handle read error.
1989 fprintf(stderr, "Tape read error while ");
1990 switch (curfile.action) {
1992 fprintf(stderr, "trying to set up tape\n");
1995 fprintf(stderr, "trying to resynchronize\n");
1998 fprintf(stderr, "restoring %s\n", curfile.name);
2001 fprintf(stderr, "skipping over inode %lu\n",
2002 (unsigned long)curfile.ino);
2005 if (!yflag && !reply("continue"))
2007 i = ntrec * TP_BSIZE;
2008 memset(tapebuf, 0, (size_t)i);
2011 seek_failed = (rmtseek(i, 1) < 0);
2014 seek_failed = (LSEEK(mt, i, SEEK_CUR) == (OFF_T)-1);
2017 warn("continuation failed");
2018 if (!yflag && !reply("assume end-of-tape and continue"))
2024 * Handle end of tape.
2027 Vprintf(stdout, "End-of-tape encountered\n");
2036 if (rd % TP_BSIZE != 0)
2037 panic("partial block read: %d should be %d\n",
2038 rd, ntrec * TP_BSIZE);
2040 memmove(&tapebuf[rd], &endoftapemark, TP_BSIZE);
2043 memmove(buf, &tbufptr[(blkcnt++ * TP_BSIZE)], TP_BSIZE);
2048 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
2051 * Read a compressed format block from a file or pipe and uncompress it.
2052 * Attempt to handle read errors, and end of file.
2055 readtape_comprfile(char *buf)
2057 long rl, size, i, ret;
2059 struct tapebuf *tpb;
2061 if (blkcnt < numtrec) {
2062 memmove(buf, &tbufptr[(blkcnt++ * TP_BSIZE)], TP_BSIZE);
2067 /* need to read the next block */
2069 for (i = 0; i < ntrec; i++)
2070 ((struct s_spcl *)&tapebuf[i * TP_BSIZE])->c_magic = 0;
2072 tpb = (struct tapebuf *) tapebuf;
2074 /* read the block prefix */
2075 ret = read_a_block(mt, tapebuf, PREFIXSIZE, &rl);
2076 converttapebuf(tpb);
2078 if (Vflag && (ret == 0 || rl < (int)PREFIXSIZE || tpb->length == 0))
2085 if (size > bufsize) {
2086 /* something's wrong */
2087 Vprintf(stdout, "Prefix size error, max size %d, got %ld\n",
2090 tpb->length = bufsize;
2092 ret = read_a_block(mt, tpb->buf, size, &rl);
2096 tbufptr = decompress_tapebuf(tpb, rl + PREFIXSIZE);
2097 if (tbufptr == NULL) {
2098 msg_read_error("File decompression error while");
2099 if (!yflag && !reply("continue"))
2101 memset(tapebuf, 0, bufsize);
2106 memmove(buf, &tbufptr[(blkcnt++ * TP_BSIZE)], TP_BSIZE);
2112 /* Errors while reading from a file or pipe are catastrophic. Since
2113 * there are no block boundaries, it's impossible to bypass the
2114 * block in error and find the start of the next block.
2117 /* It's possible to have multiple input files using -M
2118 * and -f file1,file2...
2120 Vprintf(stdout, "End-of-File encountered\n");
2130 msg_read_error("Read error while");
2131 /* if (!yflag && !reply("continue")) */
2136 * Read compressed data from a tape and uncompress it.
2137 * Handle read errors, and end of media.
2138 * Since a tape consists of separate physical blocks, we try
2139 * to recover from errors by repositioning the tape to the next
2143 readtape_comprtape(char *buf)
2147 struct tapebuf *tpb;
2150 if (blkcnt < numtrec) {
2151 memmove(buf, &tbufptr[(blkcnt++ * TP_BSIZE)], TP_BSIZE);
2156 /* need to read the next block */
2158 for (i = 0; i < ntrec; i++)
2159 ((struct s_spcl *)&tapebuf[i * TP_BSIZE])->c_magic = 0;
2161 tpb = (struct tapebuf *) tapebuf;
2163 /* read the block */
2164 size = bufsize + PREFIXSIZE;
2165 ret = read_a_block(mt, tapebuf, size, &rl);
2169 converttapebuf(tpb);
2170 tbufptr = decompress_tapebuf(tpb, rl);
2171 if (tbufptr == NULL) {
2172 msg_read_error("Tape decompression error while");
2173 if (!yflag && !reply("continue"))
2175 memset(tapebuf, 0, PREFIXSIZE + bufsize);
2181 /* Handle errors: EOT switches to the next volume, other errors
2182 * attempt to position the tape to the next block.
2185 Vprintf(stdout, "End-of-tape encountered\n");
2194 msg_read_error("Tape read error while");
2195 if (!yflag && !reply("continue"))
2197 memset(tapebuf, 0, PREFIXSIZE + bufsize);
2202 rl = rmtioctl(MTFSR, 1);
2208 rl = ioctl(mt, MTIOCTOP, &tcom);
2212 warn("continuation failed");
2213 if (!yflag && !reply("assume end-of-tape and continue"))
2215 ret = 0; /* end of tape */
2221 memmove(buf, &tbufptr[(blkcnt++ * TP_BSIZE)], TP_BSIZE);
2227 * Decompress a struct tapebuf into a buffer. readsize is the size read
2228 * from the tape/file and is used for error messages. Returns a pointer
2229 * to the location of the uncompressed buffer or NULL on errors.
2230 * Adjust numtrec and complain for a short block.
2233 decompress_tapebuf(struct tapebuf *tpbin, int readsize)
2235 /* If zflag is on, all blocks have a struct tapebuf prefix */
2236 /* zflag gets set in setup() from the dump header */
2237 int cresult, blocklen;
2238 unsigned long worklen;
2239 char *output = NULL,*reason = NULL, *lengtherr = NULL;
2241 /* build a length error message */
2242 blocklen = tpbin->length;
2243 if (readsize < blocklen + (int)PREFIXSIZE)
2244 lengtherr = "short";
2246 if (readsize > blocklen + (int)PREFIXSIZE)
2251 if (tpbin->compressed) {
2252 /* uncompress whatever we read, if it fails, complain later */
2253 if (tpbin->flags == COMPRESS_ZLIB) {
2255 errx(1,"This restore version doesn't support zlib decompression");
2257 cresult = uncompress(comprbuf, &worklen,
2258 tpbin->buf, blocklen);
2264 reason = "not enough memory";
2267 reason = "buffer too small";
2270 reason = "data error";
2275 if (cresult == Z_OK)
2279 #endif /* HAVE_ZLIB */
2281 if (tpbin->flags == COMPRESS_BZLIB) {
2283 errx(1,"This restore version doesn't support bzlib decompression");
2285 unsigned int worklen2 = worklen;
2286 cresult = BZ2_bzBuffToBuffDecompress(
2287 comprbuf, &worklen2,
2288 tpbin->buf, blocklen, 0, 0);
2295 reason = "not enough memory";
2297 case BZ_OUTBUFF_FULL:
2298 reason = "buffer too small";
2301 case BZ_DATA_ERROR_MAGIC:
2302 case BZ_UNEXPECTED_EOF:
2303 reason = "data error";
2308 if (cresult == BZ_OK)
2312 #endif /* HAVE_BZLIB */
2314 if (tpbin->flags == COMPRESS_LZO) {
2316 errx(1,"This restore version doesn't support lzo decompression");
2318 lzo_uint worklen2 = worklen;
2319 cresult = lzo1x_decompress(tpbin->buf, blocklen,
2320 comprbuf, &worklen2, NULL);
2327 case LZO_E_EOF_NOT_FOUND:
2328 reason = "data error";
2333 if (cresult == LZO_E_OK)
2337 #endif /* HAVE_LZO */
2341 output = tpbin->buf;
2345 numtrec = worklen / TP_BSIZE;
2346 if (worklen % TP_BSIZE != 0)
2347 reason = "length mismatch";
2351 fprintf(stderr, "%s compressed block: %d expected: %u\n",
2352 lengtherr, readsize, tpbin->length + PREFIXSIZE);
2353 fprintf(stderr, "decompression error, block %ld: %s\n",
2354 tpblksread+1, reason);
2362 * Print an error message for a read error.
2363 * This was exteracted from the original readtape().
2366 msg_read_error(char *m)
2368 switch (curfile.action) {
2370 fprintf(stderr, "%s trying to set up tape\n", m);
2373 fprintf(stderr, "%s trying to resynchronize\n", m);
2376 fprintf(stderr, "%s restoring %s\n", m, curfile.name);
2379 fprintf(stderr, "%s skipping over inode %lu\n", m,
2380 (unsigned long)curfile.ino);
2384 #endif /* HAVE_ZLIB || HAVE_BZLIB || HAVE_LZO */
2387 * Read the first block and get the blocksize from it. Test
2388 * for a compressed dump tape/file. setup() will make the final
2389 * determination by checking the compressed flag if gethead()
2390 * finds a valid header. The test here is necessary to offset the buffer
2391 * by the size of the compressed prefix. zflag is set here so that
2392 * readtape_set can set the correct function pointer for readtape().
2393 * Note that the first block of each tape/file is not compressed
2394 * and does not have a prefix.
2397 findtapeblksize(void)
2401 struct tapebuf *tpb = (struct tapebuf *) tapebuf;
2402 struct s_spcl spclpt;
2404 for (i = 0; i < ntrec; i++)
2405 ((struct s_spcl *)&tapebuf[i * TP_BSIZE])->c_magic = 0;
2409 * For a pipe or file, read in the first record. For a tape, read
2412 len = magtapein ? ntrec * TP_BSIZE : TP_BSIZE;
2414 if (read_a_block(mt, tapebuf, len, &i) <= 0)
2415 errx(1, "Tape read error on first record");
2417 memcpy(&spclpt, tapebuf, TP_BSIZE);
2419 if (converthead(&spclpt) == FAIL) {
2421 if (converthead(&spclpt) == FAIL) {
2422 /* Special case for old compressed tapes with prefix */
2423 if (magtapein && (i % TP_BSIZE != 0))
2425 errx(1, "Tape is not a dump tape");
2427 fprintf(stderr, "Converting to new file system format.\n");
2430 * If the input is from a file or a pipe, we read TP_BSIZE
2431 * bytes looking for a dump header. If the dump is compressed
2432 * we need to read in the rest of the block, as determined
2433 * by c_ntrec in the dump header. The first block of the
2434 * dump is not compressed and does not have a prefix.
2437 if (spclpt.c_type == TS_TAPE
2438 && spclpt.c_flags & DR_COMPRESSED) {
2439 /* It's a compressed dump file, read in the */
2440 /* rest of the block based on spclpt.c_ntrec. */
2441 if (spclpt.c_ntrec > ntrec)
2442 errx(1, "Tape blocksize is too large, use "
2443 "\'-b %d\' ", spclpt.c_ntrec);
2444 ntrec = spclpt.c_ntrec;
2445 len = (ntrec - 1) * TP_BSIZE;
2449 /* read in the rest of the block based on bufsize */
2450 len = bufsize - TP_BSIZE;
2452 if (read_a_block(mt, tapebuf+TP_BSIZE, len, &i) < 0
2453 || (i != (long)len && i % TP_BSIZE != 0))
2454 errx(1,"Error reading dump file header");
2457 Vprintf(stdout, "Input block size is %ld\n", ntrec);
2459 } /* if (!magtapein) */
2462 * If the input is a tape, we tried to read ntrec * TP_BSIZE bytes.
2463 * If the value of ntrec is too large, we read less than
2464 * what we asked for; adjust the value of ntrec and test for
2465 * a compressed dump tape.
2467 if (i % TP_BSIZE != 0) {
2469 /* may be old format compressed dump tape with a prefix */
2470 memcpy(&spclpt, tpb->buf, TP_BSIZE);
2472 if (converthead(&spclpt) == FAIL) {
2474 if (converthead(&spclpt) == FAIL)
2475 errx(1, "Tape is not a dump tape");
2476 fprintf(stderr, "Converting to new file system format.\n");
2478 if (i % TP_BSIZE == PREFIXSIZE
2479 && tpb->compressed == 0
2480 && spclpt.c_type == TS_TAPE
2481 && spclpt.c_flags & DR_COMPRESSED) {
2484 if (tpb->length > bufsize)
2485 errx(1, "Tape blocksize is too large, use "
2486 "\'-b %d\' ", tpb->length / TP_BSIZE);
2489 errx(1, "Tape block size (%ld) is not a multiple of dump block size (%d)",
2492 ntrec = i / TP_BSIZE;
2493 if (spclpt.c_type == TS_TAPE) {
2494 if (spclpt.c_flags & DR_COMPRESSED)
2496 if (spclpt.c_ntrec > ntrec)
2497 errx(1, "Tape blocksize is too large, use "
2498 "\'-b %d\' ", spclpt.c_ntrec);
2501 Vprintf(stdout, "Tape block size is %ld\n", ntrec);
2505 * Read a block of data handling all of the messy details.
2507 static int read_a_block(int fd, char *buf, size_t len, long *lengthread)
2515 i = rmtread(buf, size);
2518 i = read(fd, buf, size);
2521 break; /* EOD or error */
2524 break; /* block at a time for mt */
2527 *lengthread = len - size;
2546 setmagtapein(void) {
2547 struct mtget mt_stat;
2548 static int done = 0;
2553 /* need to know if input is really from a tape */
2559 magtapein = ioctl(mt, MTIOCGET, (char *)&mt_stat) == 0;
2562 Vprintf(stdout,"Input is from a %s %s\n",
2563 host ? "remote" : "local",
2564 magtapein ? "tape" :
2565 Vflag ? "multi-volume (no tape)" : "file/pipe");
2569 * Read the next block from the tape.
2570 * Check to see if it is one of several vintage headers.
2571 * If it is an old style header, convert it to a new style header.
2572 * If it is not any valid header, return an error.
2575 gethead(struct s_spcl *buf)
2577 readtape((char *)buf);
2578 return converthead(buf);
2582 converthead(struct s_spcl *buf)
2590 char dummy[TP_BSIZE];
2597 u_int16_t c_inumber;
2602 u_int16_t odi_nlink;
2618 if (buf->c_magic != NFS_MAGIC) {
2619 if (swabi(buf->c_magic) != NFS_MAGIC)
2622 Vprintf(stdout, "Note: Doing Byte swapping\n");
2626 if (checksum((int *)buf) == FAIL)
2629 swabst((u_char *)"8i4s1l29i528bi192b4i", (u_char *)buf);
2632 memcpy(&u_ospcl.s_ospcl, buf, TP_BSIZE);
2633 if (checksum((int *)(&u_ospcl.s_ospcl)) == FAIL)
2635 if (u_ospcl.s_ospcl.c_magic == OFS_MAGIC) {
2636 memset((char *)buf, 0, (long)TP_BSIZE);
2637 buf->c_type = u_ospcl.s_ospcl.c_type;
2638 buf->c_date = u_ospcl.s_ospcl.c_date;
2639 buf->c_ddate = u_ospcl.s_ospcl.c_ddate;
2640 buf->c_volume = u_ospcl.s_ospcl.c_volume;
2641 buf->c_tapea = u_ospcl.s_ospcl.c_tapea;
2642 buf->c_inumber = u_ospcl.s_ospcl.c_inumber;
2643 buf->c_checksum = u_ospcl.s_ospcl.c_checksum;
2644 buf->c_magic = u_ospcl.s_ospcl.c_magic;
2645 buf->c_dinode.di_mode = u_ospcl.s_ospcl.c_dinode.odi_mode;
2646 buf->c_dinode.di_nlink = u_ospcl.s_ospcl.c_dinode.odi_nlink;
2647 buf->c_dinode.di_uid = u_ospcl.s_ospcl.c_dinode.odi_uid;
2648 buf->c_dinode.di_gid = u_ospcl.s_ospcl.c_dinode.odi_gid;
2649 buf->c_dinode.di_size = u_ospcl.s_ospcl.c_dinode.odi_size;
2650 buf->c_dinode.di_rdev = u_ospcl.s_ospcl.c_dinode.odi_rdev;
2651 #if defined(__linux__) || defined(sunos)
2652 buf->c_dinode.di_atime.tv_sec = u_ospcl.s_ospcl.c_dinode.odi_atime;
2653 buf->c_dinode.di_mtime.tv_sec = u_ospcl.s_ospcl.c_dinode.odi_mtime;
2654 buf->c_dinode.di_ctime.tv_sec = u_ospcl.s_ospcl.c_dinode.odi_ctime;
2655 #else /* __linux__ || sunos */
2656 buf->c_dinode.di_atime = u_ospcl.s_ospcl.c_dinode.odi_atime;
2657 buf->c_dinode.di_mtime = u_ospcl.s_ospcl.c_dinode.odi_mtime;
2658 buf->c_dinode.di_ctime = u_ospcl.s_ospcl.c_dinode.odi_ctime;
2659 #endif /* __linux__ || sunos */
2660 buf->c_count = u_ospcl.s_ospcl.c_count;
2661 memmove(buf->c_addr, u_ospcl.s_ospcl.c_fill, (long)256);
2663 else if (u_ospcl.s_ospcl.c_magic == FS_UFS2_MAGIC) {
2664 buf->c_date = (int32_t)(*(int64_t *)&u_ospcl.dummy[896]);
2665 buf->c_ddate = (int32_t)(*(int64_t *)&u_ospcl.dummy[904]);
2666 buf->c_tapea = (int32_t)(*(int64_t *)&u_ospcl.dummy[912]);
2667 buf->c_firstrec = (int32_t)(*(int64_t *)&u_ospcl.dummy[920]);
2669 buf->c_extattributes = 0;
2670 buf->c_flags |= DR_NEWINODEFMT;
2675 buf->c_magic = NFS_MAGIC;
2678 if ((buf->c_dinode.di_size == 0 || buf->c_dinode.di_size > 0xfffffff) &&
2679 (buf->c_dinode.di_mode & IFMT) == IFDIR && Qcvt == 0) {
2680 qcvt.qval = buf->c_dinode.di_size;
2681 if (qcvt.val[0] || qcvt.val[1]) {
2682 Vprintf(stdout, "Note: Doing Quad swapping\n");
2687 qcvt.qval = buf->c_dinode.di_size;
2689 qcvt.val[1] = qcvt.val[0];
2691 buf->c_dinode.di_size = qcvt.qval;
2695 switch (buf->c_type) {
2700 * Have to patch up missing information in bit map headers
2703 buf->c_dinode.di_size = buf->c_count * TP_BSIZE;
2704 if (buf->c_count > TP_NINDIR)
2707 for (i = 0; i < buf->c_count; i++)
2712 if ((buf->c_flags & DR_NEWINODEFMT) == 0)
2717 if (buf->c_flags & DR_INODEINFO) {
2718 memcpy(volinfo, buf->c_inos, TP_NINOS * sizeof(dump_ino_t));
2720 swabst((u_char *)"128i", (u_char *)volinfo);
2729 panic("gethead: unknown inode type %d\n", buf->c_type);
2733 * If we are restoring a filesystem with old format inodes,
2734 * copy the uid/gid to the new location.
2737 buf->c_dinode.di_uid = buf->c_dinode.di_ouid;
2738 buf->c_dinode.di_gid = buf->c_dinode.di_ogid;
2746 converttapebuf(struct tapebuf *tpb)
2750 unsigned int length:28;
2751 unsigned int flags:3;
2752 unsigned int compressed:1;
2754 swabst((u_char *)"i", (u_char *)tpb);
2755 memcpy(&tb, tpb, 4);
2756 tpb->length = tb.length;
2757 tpb->flags = tb.flags;
2758 tpb->compressed = tb.compressed;
2763 * Check that a header is where it belongs and predict the next header
2766 accthdr(struct s_spcl *header)
2768 static dump_ino_t previno = 0x7fffffff;
2769 static int prevtype;
2770 static long predict;
2773 if (header->c_type == TS_TAPE) {
2774 fprintf(stderr, "Volume header (%s inode format) ",
2775 oldinofmt ? "old" : "new");
2776 if (header->c_firstrec)
2777 fprintf(stderr, "begins with record %d",
2778 header->c_firstrec);
2779 fprintf(stderr, "\n");
2780 previno = 0x7fffffff;
2783 if (previno == 0x7fffffff)
2787 fprintf(stderr, "Dumped inodes map header");
2790 fprintf(stderr, "Used inodes map header");
2793 fprintf(stderr, "File header, ino %lu", (unsigned long)previno);
2796 fprintf(stderr, "File continuation header, ino %ld", (long)previno);
2799 fprintf(stderr, "End of tape header");
2802 if (predict != blksread - 1)
2803 fprintf(stderr, "; predicted %ld blocks, got %ld blocks",
2804 predict, blksread - 1);
2805 fprintf(stderr, "\n");
2808 if (header->c_type != TS_END)
2809 for (i = 0; i < header->c_count; i++)
2810 if (readmapflag || header->c_addr[i] != 0)
2814 prevtype = header->c_type;
2815 previno = header->c_inumber;
2819 * Find an inode header.
2820 * Complain if had to skip, and complain is set.
2823 findinode(struct s_spcl *header)
2825 static long skipcnt = 0;
2829 curfile.name = "<name unknown>";
2830 curfile.action = UNKNOWN;
2834 if (header->c_magic != NFS_MAGIC) {
2836 while (gethead(header) == FAIL ||
2837 header->c_date != dumpdate)
2840 switch (header->c_type) {
2844 * Skip up to the beginning of the next record
2846 for (i = 0; i < header->c_count; i++)
2847 if (header->c_addr[i])
2849 while (gethead(header) == FAIL ||
2850 header->c_date != dumpdate)
2855 curfile.dip = &header->c_dinode;
2856 curfile.ino = header->c_inumber;
2860 curfile.ino = maxino;
2864 curfile.name = "<file removal list>";
2868 curfile.name = "<file dump list>";
2872 panic("unexpected tape header\n");
2876 panic("unknown tape header type %d\n", spcl.c_type);
2880 } while (header->c_type == TS_ADDR);
2885 fprintf(stderr, "resync restore, skipped %ld blocks\n",
2895 j = sizeof(union u_spcl) / sizeof(int);
2902 /* What happens if we want to read restore tapes
2903 for a 16bit int machine??? */
2909 if (i != CHECKSUM) {
2910 fprintf(stderr, "Checksum error %o, inode %lu file %s\n", i,
2911 (unsigned long)curfile.ino, curfile.name);
2921 #include <varargs.h>
2926 msg(const char *fmt, ...)
2939 (void)vfprintf(stderr, fmt, ap);
2942 #endif /* RRESTORE */
2945 swab16(u_char *sp, int n)
2950 c = sp[0]; sp[0] = sp[1]; sp[1] = c;
2957 swab32(u_char *sp, int n)
2962 c = sp[0]; sp[0] = sp[3]; sp[3] = c;
2963 c = sp[1]; sp[1] = sp[2]; sp[2] = c;
2970 swab64(u_char *sp, int n)
2975 c = sp[0]; sp[0] = sp[7]; sp[7] = c;
2976 c = sp[1]; sp[1] = sp[6]; sp[6] = c;
2977 c = sp[2]; sp[2] = sp[5]; sp[5] = c;
2978 c = sp[3]; sp[3] = sp[4]; sp[4] = c;
2985 swabst(u_char *cp, u_char *sp)
2991 case '0': case '1': case '2': case '3': case '4':
2992 case '5': case '6': case '7': case '8': case '9':
2993 n = (n * 10) + (*cp++ - '0');
2996 case 's': case 'w': case 'h':
3014 default: /* Any other character, like 'b' counts as byte. */
3028 swabst((u_char *)"i", (u_char *)&x);
3036 swabst((u_char *)"l", (u_char *)&x);
3042 RequestVol(long tnum)
3053 int uscsi_flags; /* read, write, etc. see below */
3054 short uscsi_status; /* resulting status */
3055 short uscsi_timeout; /* Command Timeout */
3056 caddr_t uscsi_cdb; /* cdb to send to target */
3057 caddr_t uscsi_bufaddr; /* i/o source/destination */
3058 u_int uscsi_buflen; /* size of i/o to take place */
3059 u_int uscsi_resid; /* resid from i/o operation */
3060 u_char uscsi_cdblen; /* # of valid cdb bytes */
3061 u_char uscsi_rqlen; /* size of uscsi_rqbuf */
3062 u_char uscsi_rqstatus; /* status of request sense cmd */
3063 u_char uscsi_rqresid; /* resid of request sense cmd */
3064 caddr_t uscsi_rqbuf; /* request sense buffer */
3065 void *uscsi_reserved_5; /* Reserved for Future Use */
3068 #define CDB_GROUP0 6 /* 6-byte cdb's */
3069 #define CDB_GROUP1 10 /* 10-byte cdb's */
3070 #define CDB_GROUP2 10 /* 10-byte cdb's */
3071 #define CDB_GROUP3 0 /* reserved */
3072 #define CDB_GROUP4 16 /* 16-byte cdb's */
3073 #define CDB_GROUP5 12 /* 12-byte cdb's */
3074 #define CDB_GROUP6 0 /* reserved */
3075 #define CDB_GROUP7 0 /* reserved */
3077 #define USCSI_WRITE 0x00000 /* send data to device */
3078 #define USCSI_SILENT 0x00001 /* no error messages */
3079 #define USCSI_DIAGNOSE 0x00002 /* fail if any error occurs */
3080 #define USCSI_ISOLATE 0x00004 /* isolate from normal commands */
3081 #define USCSI_READ 0x00008 /* get data from device */
3082 #define USCSI_RESET 0x04000 /* Reset target */
3083 #define USCSI_RESET_ALL 0x08000 /* Reset all targets */
3084 #define USCSI_RQENABLE 0x10000 /* Enable Request Sense extensions */
3086 #define USCSIIOC (0x04 << 8)
3087 #define USCSICMD (USCSIIOC|201) /* user scsi command */
3089 #define USCSI_TIMEOUT 30
3090 #define USCSI_SHORT_TIMEOUT 900
3091 #define USCSI_LONG_TIMEOUT 14000
3093 #define B(s,i) ((unsigned char)((s) >> i))
3094 #define B1(s) ((unsigned char)(s))
3096 #define MSB4(s,v) *(s)=B(v,24),(s)[1]=B(v,16), (s)[2]=B(v,8), (s)[3]=B1(v)
3100 GetTapePos(long long *pos)
3103 struct uscsi_cmd scmd;
3108 (void)memset((void *)buf, 0, sizeof(buf));
3109 (void)memset((void *)&scmd, 0, sizeof(scmd));
3110 scmd.uscsi_flags = USCSI_READ|USCSI_SILENT;
3111 scmd.uscsi_timeout = USCSI_TIMEOUT;
3112 scmd.uscsi_cdb = buf;
3113 scmd.uscsi_cdblen = CDB_GROUP1;
3114 buf[0] = 0x34; /* read position */
3116 (void)memset((void *)parm, 0, 512);
3117 scmd.uscsi_bufaddr = parm;
3118 scmd.uscsi_buflen = 56;
3119 if (ioctl(fdsmtc, USCSICMD, &scmd) == -1) {
3123 (void)memcpy(&lpos, &parm[4], sizeof(long));
3129 GotoTapePos(long long pos)
3132 struct uscsi_cmd scmd;
3135 long lpos = (long)pos;
3137 (void)memset((void *)buf, 0, sizeof(buf));
3138 (void)memset((void *)&scmd, 0, sizeof(scmd));
3139 scmd.uscsi_flags = USCSI_WRITE|USCSI_SILENT;
3140 scmd.uscsi_timeout = 360; /* 5 Minutes */
3141 scmd.uscsi_cdb = buf;
3142 scmd.uscsi_cdblen = CDB_GROUP1;
3143 buf[0] = 0x2b; /* locate */
3145 MSB4(&buf[3], lpos);
3146 (void)memset((void *)parm, 0, 512);
3147 scmd.uscsi_bufaddr = NULL;
3148 scmd.uscsi_buflen = 0;
3149 if (ioctl(fdsmtc, USCSICMD, &scmd) == -1) {
3157 #define LSEEK_GET_TAPEPOS 10
3158 #define LSEEK_GO2_TAPEPOS 11
3161 typedef struct mt_pos {
3164 } MTPosRec, *MTPosPtr;
3168 * get the current position of the tape
3171 GetTapePos(long long *pos)
3177 *pos = (long long) rmtseek((OFF_T)0, (int)LSEEK_GET_TAPEPOS);
3186 err = (ioctl(mt, MTIOCPOS, &mtpos) < 0);
3187 *pos = (long long)mtpos;
3190 *pos = LSEEK(mt, 0, SEEK_CUR);
3196 fprintf(stdout, "[%ld] error: %d (getting tapepos: %lld)\n",
3197 (unsigned long)getpid(), err, *pos);
3204 * go to specified position on tape
3207 GotoTapePos(long long pos)
3213 err = (rmtseek((OFF_T)pos, (int)LSEEK_GO2_TAPEPOS) < 0);
3220 buf.mt_count = (int) pos;
3221 err = (ioctl(mt, MTIOCTOP, &buf) < 0);
3224 pos = LSEEK(mt, pos, SEEK_SET);
3230 fprintf(stdout, "[%ld] error: %d (setting tapepos: %lld)\n",
3231 (unsigned long)getpid(), err, pos);
3236 #endif /* __linux__ */
3239 * read next data from tape to re-sync
3242 ReReadFromTape(void)
3246 if (gethead(&spcl) == FAIL) {
3248 fprintf(stdout, "DEBUG 1 gethead failed\n");
3256 ReReadInodeFromTape(dump_ino_t theino)
3265 } while (!(spcl.c_inumber == theino && spcl.c_type == TS_INODE && spcl.c_date == dumpdate));
3267 fprintf(stderr, "DEBUG: %ld reads\n", cntloop);
3268 fprintf(stderr, "DEBUG: bufsize %ld\n", bufsize);
3269 fprintf(stderr, "DEBUG: ntrec %ld\n", ntrec);
3270 fprintf(stderr, "DEBUG: %ld reads\n", cntloop);
3278 OpenSMTCmt(char *themagtape)
3280 if (GetSCSIIDFromPath(themagtape, &scsiid)) {
3281 fprintf(stderr, "can't get SCSI-ID for %s\n", themagtape);
3285 fprintf(stderr, "can't get SCSI-ID for %s\n", themagtape);
3288 sprintf(smtcpath, "/dev/rsmtc%ld,0", scsiid);
3289 if ((fdsmtc = open(smtcpath, O_RDWR)) == -1) {
3290 fprintf(stderr, "can't open smtc device: %s, %d\n", smtcpath, errno);
3296 #endif /* USE_QFA */