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 1.89 2005/05/02 15:10:46 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");
349 if (gethead(&spcl) == FAIL) {
350 blkcnt--; /* push back this block */
354 if (gethead(&spcl) == FAIL)
355 errx(1, "Tape is not a dump tape");
356 fprintf(stderr, "Converting to new file system format.\n");
360 fprintf(stderr, "Dump tape is compressed.\n");
361 #if !defined(HAVE_ZLIB) && !defined(HAVE_BZLIB) && !defined(HAVE_LZO)
362 errx(1,"This restore version doesn't support decompression");
363 #endif /* !HAVE_ZLIB && !HAVE_BZLIB */
366 endoftapemark.s_spcl.c_magic = cvtflag ? OFS_MAGIC : NFS_MAGIC;
367 endoftapemark.s_spcl.c_type = TS_END;
368 ip = (int *)&endoftapemark;
369 j = sizeof(union u_spcl) / sizeof(int);
374 endoftapemark.s_spcl.c_checksum = CHECKSUM - i;
376 if (vflag || command == 't' || command == 'C')
379 if (tapeposflag && (unsigned long)spcl.c_date != qfadumpdate)
380 errx(1, "different QFA/dumpdates detected\n");
382 if (filesys[0] == '\0') {
384 strncpy(filesys, spcl.c_filesys, NAMELEN);
385 filesys[NAMELEN - 1] = '\0';
386 dirptr = strstr(filesys, " (dir");
390 dumptime = spcl.c_ddate;
391 dumpdate = spcl.c_date;
392 if (STAT(".", &stbuf) < 0)
393 err(1, "cannot stat .");
394 if (stbuf.st_blksize > 0 && stbuf.st_blksize < TP_BSIZE )
396 if (stbuf.st_blksize >= TP_BSIZE && stbuf.st_blksize <= MAXBSIZE)
397 fssize = stbuf.st_blksize;
398 if (((fssize - 1) & fssize) != 0)
399 errx(1, "bad block size %ld", fssize);
400 if (spcl.c_volume != 1)
401 errx(1, "Tape is not volume 1 of the dump");
402 if (gethead(&spcl) == FAIL) {
403 Dprintf(stdout, "header read failed at %ld blocks\n", (long)blksread);
404 panic("no header after volume mark!\n");
408 if (spcl.c_type != TS_CLRI)
409 errx(1, "Cannot find file removal list");
410 maxino = (spcl.c_count * TP_BSIZE * NBBY) + 1;
411 map = calloc((unsigned)1, (unsigned)howmany(maxino, NBBY));
413 errx(1, "no memory for active inode map");
415 curfile.action = USING;
416 getfile(xtrmap, xtrmapskip);
417 while (spcl.c_type == TS_ADDR) {
418 /* Recompute maxino and the map */
419 dump_ino_t oldmaxino = maxino;
420 maxino += (spcl.c_count * TP_BSIZE * NBBY) + 1;
421 resizemaps(oldmaxino, maxino);
424 spcl.c_dinode.di_size = spcl.c_count * TP_BSIZE;
425 getfile(xtrmap, xtrmapskip);
427 Dprintf(stdout, "maxino = %lu\n", (unsigned long)maxino);
428 if (spcl.c_type != TS_BITS) {
429 if (spcl.c_type == TS_END) {
430 msg("Cannot find file dump list, assuming empty tape\n");
433 errx(1, "Cannot find file dump list");
435 map = calloc((unsigned)1, (unsigned)howmany(maxino, NBBY));
436 if (map == (char *)NULL)
437 errx(1, "no memory for file dump list");
439 curfile.action = USING;
440 getfile(xtrmap, xtrmapskip);
441 while (spcl.c_type == TS_ADDR) {
442 spcl.c_dinode.di_size = spcl.c_count * TP_BSIZE;
443 getfile(xtrmap, xtrmapskip);
446 * If there may be whiteout entries on the tape, pretend that the
447 * whiteout inode exists, so that the whiteout entries can be
451 SETINO(WINO, dumpmap);
457 * Prompt user to load a new dump volume.
458 * "Nextvol" is the next suggested volume to use.
459 * This suggested volume is enforced when doing full
460 * or incremental restores, but can be overridden by
461 * the user when only extracting a subset of the files.
466 long newvol = 0, wantnext = 0, i;
467 long saved_blksread = 0, saved_tpblksread = 0;
468 union u_spcl tmpspcl;
469 # define tmpbuf tmpspcl.s_spcl
471 int haderror = 0, bot_code = 1;
481 panic("Changing volumes on pipe input?\n");
486 saved_blksread = blksread;
487 saved_tpblksread = tpblksread;
488 #if defined(USE_QFA) && defined(sunos)
489 if (createtapeposflag || tapeposflag)
494 exit(1); /* pipes do not get a second chance */
495 if (aflag || curfile.action != SKIP) {
502 while (newvol <= 0) {
503 if (tapesread == 0) {
504 fprintf(stderr, "%s%s%s%s%s",
505 "You have not read any volumes yet.\n",
506 "Unless you know which volume your",
507 " file(s) are on you should start\n",
508 "with the last volume and work",
509 " towards the first.\n");
511 fprintf(stderr, "You have read volumes");
513 for (i = 1; i < 32; i++)
514 if (tapesread & (1 << i)) {
515 fprintf(stderr, "%s%ld", buf, (long)i);
518 fprintf(stderr, "\n");
521 fprintf(stderr, "Specify next volume # (none if no more volumes): ");
522 (void) fflush(stderr);
523 (void) fgets(buf, TP_BSIZE, terminal);
524 } while (!feof(terminal) && buf[0] == '\n');
527 if (!strcmp(buf, "none\n")) {
534 "Volume numbers are positive numerics\n");
537 if (newvol == volno) {
538 tapesread |= 1 << volno;
539 #if defined(USE_QFA) && defined(sunos)
540 if (createtapeposflag || tapeposflag) {
541 if (OpenSMTCmt(magtape) < 0) {
553 * if using an archive file, reset its name so readtape()
554 * could properly use remote access.
559 snprintf(magtape, MAXPATHLEN, "%s%03ld", magtapeprefix, newvol);
560 magtape[MAXPATHLEN - 1] = '\0';
562 if (bot_script && !haderror) {
563 msg("Launching %s\n", bot_script);
564 bot_code = system_command(bot_script, magtape, newvol);
565 if (bot_code != 0 && bot_code != 1) {
566 msg("Restore aborted by the beginning of tape script\n");
570 if (haderror || (bot_code && !Mflag)) {
573 fprintf(stderr, "Mount volume %ld\n", (long)newvol);
575 fprintf(stderr, "Mount tape volume %ld\n", (long)newvol);
577 fprintf(stderr, "Enter ``none'' if there are no more tapes\n");
579 fprintf(stderr, "then enter volume name (default: %s) ", magtape);
581 fprintf(stderr, "otherwise enter tape name (default: %s) ", magtape);
583 (void) fflush(stderr);
584 (void) fgets(buf, TP_BSIZE, terminal);
587 if (!strcmp(buf, "none\n")) {
591 if (buf[0] != '\n') {
593 (void) strncpy(magtape, buf, sizeof(magtape));
594 magtape[sizeof(magtape) - 1] = '\0';
595 if ((pos = strchr(magtape, '\n')))
596 magtape[pos - magtape] = '\0';
599 #if defined(USE_QFA) && defined(sunos)
600 if (createtapeposflag || tapeposflag) {
601 if (OpenSMTCmt(magtape) < 0) {
610 mt = rmtopen(magtape, O_RDONLY);
613 mt = OPEN(magtape, O_RDONLY, 0);
616 fprintf(stderr, "Cannot open %s\n", magtape);
623 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
624 readtape_func = readtape_set;
630 if (gethead(&tmpbuf) == FAIL) {
631 Dprintf(stdout, "header read failed at %ld blocks\n", (long)blksread);
632 fprintf(stderr, "tape is not dump tape\n");
635 blksread = saved_blksread;
636 tpblksread = saved_tpblksread;
639 if (tmpbuf.c_volume != volno) {
640 fprintf(stderr, "Wrong volume (%d)\n", tmpbuf.c_volume);
643 blksread = saved_blksread;
644 tpblksread = saved_tpblksread;
647 if (tmpbuf.c_date != dumpdate || tmpbuf.c_ddate != dumptime) {
648 fprintf(stderr, "Wrong dump date\n\tgot: %s",
650 ctime(&tmpbuf.c_date));
652 ctime4(&tmpbuf.c_date));
654 fprintf(stderr, "\twanted: %s", ctime(&dumpdate));
657 blksread = saved_blksread;
658 tpblksread = saved_tpblksread;
661 tapesread |= 1 << volno;
663 * If continuing from the previous volume, skip over any
664 * blocks read already at the end of the previous volume.
666 * If coming to this volume at random, skip to the beginning
667 * of the next record.
670 fprintf(stderr, "Dump tape is compressed.\n");
671 #if !defined(HAVE_ZLIB) && !defined(HAVE_BZLIB) && !defined(HAVE_LZO)
672 errx(1,"This restore version doesn't support decompression");
673 #endif /* !HAVE_ZLIB && !HAVE_BZLIB */
675 Dprintf(stdout, "read %ld recs, tape starts with %ld\n",
676 tpblksread - 1, (long)tmpbuf.c_firstrec);
677 if (tmpbuf.c_type == TS_TAPE && (tmpbuf.c_flags & DR_NEWHEADER)) {
679 tpblksread = tmpbuf.c_firstrec + 1;
680 for (i = tmpbuf.c_count; i > 0; i--)
682 } else if (tmpbuf.c_firstrec > 0 &&
683 tmpbuf.c_firstrec < tpblksread - 1) {
685 * -1 since we've read the volume header
687 i = tpblksread - tmpbuf.c_firstrec - 1;
688 Dprintf(stderr, "Skipping %ld duplicate record%s.\n",
689 (long)i, i > 1 ? "s" : "");
694 if (curfile.action == USING) {
696 panic("active file into volume 1\n");
700 * Skip up to the beginning of the next record
702 if (tmpbuf.c_type == TS_TAPE && (tmpbuf.c_flags & DR_NEWHEADER))
703 for (i = tmpbuf.c_count; i > 0; i--)
705 (void) gethead(&spcl);
709 siglongjmp(restart, 1);
714 * Handle unexpected EOF.
720 if (gettingfile && curfile.action == USING) {
721 printf("Warning: %s %s\n",
722 "End-of-input encountered while extracting", curfile.name);
724 curfile.name = "<name unknown>";
725 curfile.action = UNKNOWN;
727 curfile.ino = maxino;
730 siglongjmp(restart, 1);
735 * handle multiple dumps per tape by skipping forward to the
743 if (dumpnum == 1 || volno != 1)
746 errx(1, "Cannot have multiple dumps on pipe input");
748 tcom.mt_count = dumpnum - 1;
751 if (rmtioctl(MTFSF, dumpnum - 1) < 0) {
752 fprintf(stderr, "rmtioctl MTFSF: %s\n", strerror(errno));
757 if (ioctl(mt, (int)MTIOCTOP, (char *)&tcom) < 0) {
758 fprintf(stderr, "rmtioctl MTFSF: %s\n", strerror(errno));
760 /* warn("ioctl MTFSF"); */
768 Vprintf(stdout, "Dump date: %s", ctime(&spcl.c_date));
769 Vprintf(stdout, "Dumped from: %s",
770 (spcl.c_ddate == 0) ? "the epoch\n" : ctime(&spcl.c_ddate));
771 if (spcl.c_host[0] == '\0')
773 Vprintf(stdout, "Level %d dump of %s on %s:%s\n",
774 spcl.c_level, spcl.c_filesys, spcl.c_host, spcl.c_dev);
775 Vprintf(stdout, "Label: %s\n", spcl.c_label);
777 fprintf(stdout, "Dump date: %s", ctime4(&spcl.c_date));
778 fprintf(stdout, "Dumped from: %s",
779 (spcl.c_ddate == 0) ? "the epoch\n" : ctime4(&spcl.c_ddate));
780 if (spcl.c_host[0] == '\0')
782 fprintf(stdout, "Level %d dump of %s on %s:%s\n",
783 spcl.c_level, spcl.c_filesys, spcl.c_host, spcl.c_dev);
784 fprintf(stdout, "Label: %s\n", spcl.c_label);
793 if (volinfo[1] == ROOTINO) {
794 printf("Starting inode numbers by volume:\n");
795 for (i = 1; i < (int)TP_NINOS && volinfo[i] != 0; ++i)
796 printf("\tVolume %d: %lu\n", i, (unsigned long)volinfo[i]);
802 extractfile(struct entry *ep, int doremove)
806 struct timeval timep[2];
807 char *name = myname(ep);
809 /* If removal is requested (-r mode) do remove it unless
810 * we are extracting a metadata only inode */
811 if (spcl.c_flags & DR_METAONLY) {
812 Vprintf(stdout, "file %s is metadata only\n", name);
817 ep->e_flags &= ~REMOVED;
822 curfile.action = USING;
823 #if defined(__linux__) || defined(sunos)
824 timep[0].tv_sec = curfile.dip->di_atime.tv_sec;
825 timep[0].tv_usec = curfile.dip->di_atime.tv_usec;
826 timep[1].tv_sec = curfile.dip->di_mtime.tv_sec;
827 timep[1].tv_usec = curfile.dip->di_mtime.tv_usec;
828 #else /* __linux__ || sunos */
829 timep[0].tv_sec = curfile.dip->di_atime;
830 timep[0].tv_usec = curfile.dip->di_atimensec / 1000;
831 timep[1].tv_sec = curfile.dip->di_mtime;
832 timep[1].tv_usec = curfile.dip->di_mtimensec / 1000;
833 #endif /* __linux__ */
834 mode = curfile.dip->di_mode;
835 flags = curfile.dip->di_flags;
836 switch (mode & IFMT) {
839 fprintf(stderr, "%s: unknown file mode 0%o\n", name, mode);
844 Vprintf(stdout, "skipped socket %s\n", name);
852 if (ep == NULL || ep->e_flags & EXTRACT)
853 panic("unextracted directory %s\n", name);
857 Vprintf(stdout, "extract dir %s\n", name);
858 ret = genliteraldir(name, curfile.ino);
866 uid_t luid = curfile.dip->di_uid;
867 gid_t lgid = curfile.dip->di_gid;
869 if (! (spcl.c_flags & DR_METAONLY)) {
872 getfile(xtrlnkfile, xtrlnkskip);
875 "%s: zero length symbolic link (ignored)\n", name);
878 if (linkit(lnkbuf, name, SYMLINK) == FAIL)
885 (void) lchown(name, luid, lgid);
892 Vprintf(stdout, "extract fifo %s\n", name);
897 if (! (spcl.c_flags & DR_METAONLY)) {
900 if (mkfifo(name, mode) < 0) {
901 warn("%s: cannot create fifo", name);
906 (void) chown(name, curfile.dip->di_uid, curfile.dip->di_gid);
907 (void) chmod(name, mode);
910 (void) lsetflags(name, flags);
914 warn("%s: cannot call chflags", name);
915 /* (void) chflags(name, flags); */
918 (void) chflags(name, flags);
928 Vprintf(stdout, "extract special file %s\n", name);
933 if (! (spcl.c_flags & DR_METAONLY)) {
936 if (mknod(name, mode, (int)curfile.dip->di_rdev) < 0) {
937 warn("%s: cannot create special file", name);
942 (void) chown(name, curfile.dip->di_uid, curfile.dip->di_gid);
943 (void) chmod(name, mode);
947 warn("%s: lsetflags called on a special file", name);
948 (void) lsetflags(name, flags);
953 warn("%s: cannot call chflags on a special file", name);
954 /* (void) chflags(name, flags); */
958 warn("%s: chflags called on a special file", name);
959 (void) chflags(name, flags);
970 uid_t luid = curfile.dip->di_uid;
971 gid_t lgid = curfile.dip->di_gid;
973 Vprintf(stdout, "extract file %s\n", name);
978 if (! (spcl.c_flags & DR_METAONLY)) {
981 if ((ofile = OPEN(name, O_WRONLY | O_CREAT | O_TRUNC,
983 warn("%s: cannot create file", name);
987 getfile(xtrfile, xtrskip);
992 (void) chown(name, luid, lgid);
993 (void) chmod(name, mode);
996 (void) lsetflags(name, flags);
1000 warn("%s: cannot call chflags", name);
1001 /* (void) chflags(name, flags); */
1004 (void) chflags(name, flags);
1008 utimes(name, timep);
1016 extractattr(char *path)
1018 while (spcl.c_flags & DR_EXTATTRIBUTES) {
1019 switch (spcl.c_extattributes) {
1020 case EXT_MACOSFNDRINFO:
1022 (void)extractfinderinfoufs(path);
1024 msg("MacOSX not supported in this version, skipping\n");
1028 case EXT_MACOSRESFORK:
1030 (void)extractresourceufs(path);
1032 msg("MacOSX not supported in this version, skipping\n");
1037 char xattr[XATTR_MAXSIZE];
1039 if (readxattr(xattr) == GOOD) {
1040 xattr_extract(path, xattr);
1045 msg("unexpected inode extension %ld, skipping\n", spcl.c_extattributes);
1055 extractfinderinfoufs(char *name)
1058 char oFileRsrc[MAXPATHLEN];
1061 struct timeval timep[2];
1064 char path[MAXPATHLEN], fname[MAXPATHLEN];
1066 curfile.name = name;
1067 curfile.action = USING;
1068 timep[0].tv_sec = curfile.dip->di_atime.tv_sec;
1069 timep[0].tv_usec = curfile.dip->di_atime.tv_usec;
1070 timep[1].tv_sec = curfile.dip->di_mtime.tv_sec;
1071 timep[1].tv_usec = curfile.dip->di_mtime.tv_usec;
1072 mode = curfile.dip->di_mode;
1073 flags = curfile.dip->di_flags;
1074 uid = curfile.dip->di_uid;
1075 gid = curfile.dip->di_gid;
1077 switch (mode & IFMT) {
1080 fprintf(stderr, "%s: (extr. finfoufs) unknown file mode 0%o\n", name, mode);
1085 fprintf(stderr, "%s: (extr. finfoufs[IFDIR]) unknown file mode 0%o\n", name, mode);
1094 Vprintf(stdout, "extract finderinfo file %s\n", name);
1099 getfile(xtrfilefinderinfo, xtrskip);
1101 GetPathFile(name, path, fname);
1102 strcpy(oFileRsrc, path);
1103 strcat(oFileRsrc, "._");
1104 strcat(oFileRsrc, fname);
1106 if ((err = CreateAppleDoubleFileRes(oFileRsrc, &gFndrInfo.fndrinfo,
1107 mode, flags, timep, uid, gid)) != 0) {
1108 fprintf(stderr, "%s: cannot create finderinfo: %s\n",
1109 name, strerror(errno));
1120 extractresourceufs(char *name)
1122 char oFileRsrc[MAXPATHLEN];
1125 struct timeval timep[2];
1126 char path[MAXPATHLEN], fname[MAXPATHLEN];
1136 curfile.name = name;
1137 curfile.action = USING;
1138 timep[0].tv_sec = curfile.dip->di_atime.tv_sec;
1139 timep[0].tv_usec = curfile.dip->di_atime.tv_usec;
1140 timep[1].tv_sec = curfile.dip->di_mtime.tv_sec;
1141 timep[1].tv_usec = curfile.dip->di_mtime.tv_usec;
1142 mode = curfile.dip->di_mode;
1143 flags = curfile.dip->di_flags;
1144 uid = curfile.dip->di_uid;
1145 gid = curfile.dip->di_gid;
1146 di_size = curfile.dip->di_size;
1148 switch (mode & IFMT) {
1151 fprintf(stderr, "%s: (extr. resufs) unknown file mode 0%o\n", name, mode);
1156 fprintf(stderr, "%s: (extr. resufs [IFDIR]) unknown file mode 0%o\n", name, mode);
1165 Vprintf(stdout, "extract resource file %s\n", name);
1171 GetPathFile(name, path, fname);
1172 strcpy(oFileRsrc, path);
1173 strcat(oFileRsrc, "._");
1174 strcat(oFileRsrc, fname);
1176 if ((ofile = open(oFileRsrc, O_RDONLY, 0)) < 0) {
1177 fprintf(stderr, "%s: cannot read finderinfo: %s\n",
1178 name, strerror(errno));
1182 read(ofile, buf, 70);
1183 (void) close(ofile);
1185 hp = (ASDHeaderPtr)p;
1188 p += sizeof(ASDHeader) - CORRECT;
1189 ep = (ASDEntryPtr)p;
1190 /* the finderinfo entry */
1191 ep->offset += sizeof(ASDEntry);
1194 p += sizeof(ASDEntry);
1195 /* the finderinfo data */
1196 bcopy(p, p + sizeof(ASDEntry), INFOLEN);
1197 ep = (ASDEntryPtr)p;
1198 /* the new resourcefork entry */
1199 ep->entryID = EntryRSRCFork;
1200 ep->offset = loff + INFOLEN;
1202 /* write the new appledouble entries to the file */
1203 if ((ofile = open(oFileRsrc, O_WRONLY | O_CREAT | O_TRUNC, 0666)) < 0) {
1204 fprintf(stderr, "%s: cannot create resource file: %s\n",
1205 name, strerror(errno));
1209 write(ofile, buf, 70 + sizeof(ASDEntry));
1210 /* and add the resource data from tape */
1211 getfile(xtrfile, xtrskip);
1213 (void) fchown(ofile, uid, gid);
1214 (void) fchmod(ofile, mode);
1215 (void) close(ofile);
1216 (void) lsetflags(oFileRsrc, flags);
1217 utimes(oFileRsrc, timep);
1222 #endif /* DUMP_MACOSX */
1225 readxattr(char *buffer)
1228 msg("reading EA data for inode %lu\n", curfile.ino);
1230 curfile.name = "EA block";
1231 if (curfile.dip->di_size > XATTR_MAXSIZE) {
1232 fprintf(stderr, "EA size too big (%ld)", (long)curfile.dip->di_size);
1237 memset(xattrbuf, 0, XATTR_MAXSIZE);
1240 getfile(xtrxattr, xtrnull);
1242 memcpy(buffer, xattrbuf, XATTR_MAXSIZE);
1248 * skip over bit maps on the tape
1254 while (spcl.c_type == TS_BITS || spcl.c_type == TS_CLRI)
1259 * skip over a file on the tape
1265 curfile.action = SKIP;
1266 getfile(xtrnull, xtrnull);
1270 * skip over any extended attributes.
1276 while (spcl.c_flags & DR_EXTATTRIBUTES)
1281 * Extract a file from the tape.
1282 * When an allocated block is found it is passed to the fill function;
1283 * when an unallocated block (hole) is found, a zeroed buffer is passed
1284 * to the skip function.
1287 getfile(void (*fill) __P((char *, size_t)), void (*skip) __P((char *, size_t)))
1290 volatile int curblk = 0;
1291 volatile quad_t size = spcl.c_dinode.di_size;
1292 volatile int last_write_was_hole = 0;
1293 quad_t origsize = size;
1294 static char clearedbuf[MAXBSIZE];
1295 char buf[MAXBSIZE / TP_BSIZE][TP_BSIZE];
1296 char junk[TP_BSIZE];
1298 if (spcl.c_type == TS_END)
1299 panic("ran off end of tape\n");
1300 if (spcl.c_magic != NFS_MAGIC)
1301 panic("not at beginning of a file\n");
1302 if (!gettingfile && setjmp(restart) != 0)
1306 for (i = 0; i < spcl.c_count; i++) {
1307 if (readmapflag || spcl.c_addr[i]) {
1308 readtape(&buf[curblk++][0]);
1309 if (curblk == fssize / TP_BSIZE) {
1310 (*fill)((char *)buf, (size_t)(size > TP_BSIZE ?
1311 fssize : (curblk - 1) * TP_BSIZE + size));
1313 last_write_was_hole = 0;
1317 (*fill)((char *)buf, (size_t)(size > TP_BSIZE ?
1319 (curblk - 1) * TP_BSIZE + size));
1322 (*skip)(clearedbuf, (long)(size > TP_BSIZE ?
1324 last_write_was_hole = 1;
1326 if ((size -= TP_BSIZE) <= 0) {
1327 for (i++; i < spcl.c_count; i++)
1328 if (readmapflag || spcl.c_addr[i])
1333 if (gethead(&spcl) == GOOD && size > 0) {
1334 if (spcl.c_type == TS_ADDR)
1337 "Missing address (header) block for %s at %ld blocks\n",
1338 curfile.name, (long)blksread);
1341 (*fill)((char *)buf, (size_t)((curblk * TP_BSIZE) + size));
1342 last_write_was_hole = 0;
1345 fprintf(stderr, "Missing blocks at the end of %s, assuming hole\n", curfile.name);
1347 size_t skp = size > TP_BSIZE ? TP_BSIZE : size;
1348 (*skip)(clearedbuf, skp);
1351 last_write_was_hole = 1;
1353 if (last_write_was_hole) {
1354 FTRUNCATE(ofile, origsize);
1362 * Write out the next block of a file.
1365 xtrfile(char *buf, size_t size)
1370 if (write(ofile, buf, (int) size) == -1)
1371 err(1, "write error extracting inode %lu, name %s\nwrite",
1372 (unsigned long)curfile.ino, curfile.name);
1377 xtrfilefinderinfo(char *buf, size_t size)
1379 bcopy(buf, &gFndrInfo, size);
1381 #endif /* DUMP_MACOSX */
1384 * Skip over a hole in a file.
1388 xtrskip(UNUSED(char *buf), size_t size)
1391 if (LSEEK(ofile, (OFF_T)size, SEEK_CUR) == -1)
1392 err(1, "seek error extracting inode %lu, name %s\nlseek",
1393 (unsigned long)curfile.ino, curfile.name);
1397 * Collect the next block of a symbolic link.
1400 xtrlnkfile(char *buf, size_t size)
1404 if (pathlen > MAXPATHLEN) {
1405 buf[size - 1] = '\0';
1406 errx(1, "symbolic link name: %s->%s%s; too long %d",
1407 curfile.name, lnkbuf, buf, pathlen);
1409 (void) strcat(lnkbuf, buf);
1410 lnkbuf[pathlen] = '\0';
1414 * Skip over a hole in a symbolic link (should never happen).
1418 xtrlnkskip(UNUSED(char *buf), UNUSED(size_t size))
1421 errx(1, "unallocated block in symbolic link %s", curfile.name);
1425 * Collect the next block of a bit map.
1428 xtrmap(char *buf, size_t size)
1431 memmove(map, buf, size);
1436 * Skip over a hole in a bit map (should never happen).
1440 xtrmapskip(UNUSED(char *buf), size_t size)
1443 panic("hole in map\n");
1448 * Noop, when an extraction function is not needed.
1452 xtrnull(UNUSED(char *buf), UNUSED(size_t size))
1458 #if COMPARE_ONTHEFLY
1460 * Compare the next block of a file.
1463 xtrcmpfile(char *buf, size_t size)
1465 static char cmpbuf[MAXBSIZE];
1470 if (read(ifile, cmpbuf, size) != (ssize_t)size) {
1471 fprintf(stderr, "%s: size has changed.\n",
1477 if (memcmp(buf, cmpbuf, size) != 0) {
1478 fprintf(stderr, "%s: tape and disk copies are different\n",
1486 * Skip over a hole in a file.
1489 xtrcmpskip(UNUSED(char *buf), size_t size)
1491 static char cmpbuf[MAXBSIZE];
1497 if (read(ifile, cmpbuf, size) != (ssize_t)size) {
1498 fprintf(stderr, "%s: size has changed.\n",
1504 for (i = 0; i < (int)size; ++i)
1505 if (cmpbuf[i] != '\0') {
1506 fprintf(stderr, "%s: tape and disk copies are different\n",
1512 #endif /* COMPARE_ONTHEFLY */
1515 xtrxattr(char *buf, size_t size)
1517 if (xattrlen + size > XATTR_MAXSIZE) {
1518 fprintf(stderr, "EA size too big (%ld)", (long)xattrlen + size);
1521 memcpy(xattrbuf + xattrlen, buf, size);
1525 #if !COMPARE_ONTHEFLY
1527 do_cmpfiles(int fd_tape, int fd_disk, OFF_T size)
1529 static char buf_tape[BUFSIZ];
1530 static char buf_disk[BUFSIZ];
1535 if ((n_tape = read(fd_tape, buf_tape, sizeof(buf_tape))) < 1) {
1536 close(fd_tape), close(fd_disk);
1537 panic("do_cmpfiles: unexpected EOF[1]");
1539 if ((n_disk = read(fd_disk, buf_disk, sizeof(buf_tape))) < 1) {
1540 close(fd_tape), close(fd_disk);
1541 panic("do_cmpfiles: unexpected EOF[2]");
1543 if (n_tape != n_disk) {
1544 close(fd_tape), close(fd_disk);
1545 panic("do_cmpfiles: sizes different!");
1547 if (memcmp(buf_tape, buf_disk, (size_t)n_tape) != 0) return (1);
1553 /* for debugging compare problems */
1554 #undef COMPARE_FAIL_KEEP_FILE
1557 #ifdef COMPARE_FAIL_KEEP_FILE
1558 /* return true if tapefile should be unlinked after compare */
1563 cmpfiles(char *tapefile, char *diskfile, struct STAT *sbuf_disk)
1565 struct STAT sbuf_tape;
1566 int fd_tape, fd_disk;
1568 if (STAT(tapefile, &sbuf_tape) != 0) {
1569 panic("can't lstat tmp file %s: %s\n", tapefile,
1574 if (sbuf_disk->st_size != sbuf_tape.st_size) {
1576 "%s: size changed from %lld to %lld.\n",
1577 diskfile, (long long)sbuf_tape.st_size, (long long)sbuf_disk->st_size);
1579 #ifdef COMPARE_FAIL_KEEP_FILE
1586 if ((fd_tape = OPEN(tapefile, O_RDONLY)) < 0) {
1587 panic("can't open %s: %s\n", tapefile, strerror(errno));
1590 if ((fd_disk = OPEN(diskfile, O_RDONLY)) < 0) {
1592 panic("can't open %s: %s\n", diskfile, strerror(errno));
1596 if (do_cmpfiles(fd_tape, fd_disk, sbuf_tape.st_size)) {
1597 fprintf(stderr, "%s: tape and disk copies are different\n",
1602 #ifdef COMPARE_FAIL_KEEP_FILE
1603 /* rename the file to live in /tmp */
1604 /* rename `tapefile' to /tmp/<basename of diskfile> */
1606 char *p = strrchr(diskfile, '/');
1607 char newname[MAXPATHLEN];
1609 panic("can't find / in %s\n", diskfile);
1611 snprintf(newname, sizeof(newname), "%s/debug/%s", tmpdir, p + 1);
1612 if (rename(tapefile, newname)) {
1613 panic("rename from %s to %s failed: %s\n",
1617 fprintf(stderr, "*** %s saved to %s\n",
1622 /* don't unlink the file (it's not there anymore */
1631 #ifdef COMPARE_FAIL_KEEP_FILE
1635 #endif /* !COMPARE_ONTHEFLY */
1638 compareattr(char *name)
1642 while (spcl.c_flags & DR_EXTATTRIBUTES) {
1643 switch (spcl.c_extattributes) {
1644 case EXT_MACOSFNDRINFO:
1645 msg("MacOSX not supported for comparision in this version, skipping\n");
1648 case EXT_MACOSRESFORK:
1649 msg("MacOSX not supported for comparision in this version, skipping\n");
1653 char xattr[XATTR_MAXSIZE];
1655 if (readxattr(xattr) == GOOD) {
1656 if (xattr_compare(name, xattr) == FAIL)
1665 msg("unexpected inode extension %ld, skipping\n", spcl.c_extattributes);
1670 if (!xattr_done && xattr_compare(name, NULL) == FAIL)
1674 #if !COMPARE_ONTHEFLY
1675 static char tmpfilename[MAXPATHLEN];
1679 comparefile(char *name)
1685 unsigned long newflags;
1688 #if !COMPARE_ONTHEFLY
1689 static char *tmpfile = NULL;
1692 curfile.name = name;
1693 curfile.action = USING;
1694 mode = curfile.dip->di_mode;
1695 flags = curfile.dip->di_flags;
1696 uid = curfile.dip->di_uid;
1697 gid = curfile.dip->di_gid;
1699 if ((mode & IFMT) == IFSOCK) {
1700 Vprintf(stdout, "skipped socket %s\n", name);
1705 if ((r = LSTAT(name, &sb)) != 0) {
1706 warn("unable to stat %s", name);
1712 Vprintf(stdout, "comparing %s (size: %lld, mode: 0%o)\n", name,
1713 (long long)sb.st_size, mode);
1715 if (sb.st_mode != mode) {
1716 fprintf(stderr, "%s: mode changed from 0%o to 0%o.\n",
1717 name, mode & 07777, sb.st_mode & 07777);
1720 if (sb.st_uid != uid) {
1721 fprintf(stderr, "%s: uid changed from %d to %d.\n",
1722 name, uid, sb.st_uid);
1725 if (sb.st_gid != gid) {
1726 fprintf(stderr, "%s: gid changed from %d to %d.\n",
1727 name, gid, sb.st_gid);
1731 if (lgetflags(name, &newflags) < 0) {
1733 warn("%s: lgetflags failed", name);
1738 if (newflags != flags) {
1739 fprintf(stderr, "%s: flags changed from 0x%08x to 0x%08lx.\n",
1740 name, flags, newflags);
1745 if (spcl.c_flags & DR_METAONLY) {
1749 switch (mode & IFMT) {
1764 char lbuf[MAXPATHLEN + 1];
1767 if (!(sb.st_mode & S_IFLNK)) {
1768 fprintf(stderr, "%s: is no longer a symbolic link\n",
1775 getfile(xtrlnkfile, xtrlnkskip);
1778 "%s: zero length symbolic link (ignored)\n",
1783 if ((lsize = readlink(name, lbuf, MAXPATHLEN)) < 0) {
1784 panic("readlink of %s failed: %s\n", name,
1789 if (strcmp(lbuf, lnkbuf) != 0) {
1791 "%s: symbolic link changed from %s to %s.\n",
1792 name, lnkbuf, lbuf);
1802 if (!(sb.st_mode & (S_IFCHR|S_IFBLK))) {
1803 fprintf(stderr, "%s: no longer a special file\n",
1810 if (sb.st_rdev != (dev_t)curfile.dip->di_rdev) {
1812 "%s: device changed from %d,%d to %d,%d.\n",
1814 major(curfile.dip->di_rdev),
1815 minor(curfile.dip->di_rdev),
1825 #if COMPARE_ONTHEFLY
1826 if ((ifile = OPEN(name, O_RDONLY)) < 0) {
1827 warn("can't open %s", name);
1833 getfile(xtrcmpfile, xtrcmpskip);
1836 if (read(ifile, &c, 1) != 0) {
1837 fprintf(stderr, "%s: size has changed.\n",
1847 if (tmpfile == NULL) {
1848 /* argument to mktemp() must not be in RO space: */
1849 snprintf(tmpfilename, sizeof(tmpfilename), "%s/restoreCXXXXXX", tmpdir);
1850 tmpfile = mktemp(&tmpfilename[0]);
1852 if ((STAT(tmpfile, &stemp) == 0) && (unlink(tmpfile) != 0)) {
1853 panic("cannot delete tmp file %s: %s\n",
1854 tmpfile, strerror(errno));
1856 if ((ofile = OPEN(tmpfile, O_WRONLY | O_CREAT | O_TRUNC, 0600)) < 0) {
1857 panic("cannot create file temp file %s: %s\n",
1858 name, strerror(errno));
1860 getfile(xtrfile, xtrskip);
1861 (void) close(ofile);
1862 #ifdef COMPARE_FAIL_KEEP_FILE
1863 if (cmpfiles(tmpfile, name, &sb))
1866 cmpfiles(tmpfile, name, &sb);
1869 #endif /* COMPARE_ONTHEFLY */
1876 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
1877 static void (*readtape_func)(char *) = readtape_set;
1880 * Read TP_BSIZE blocks from the input.
1881 * Handle read errors, and end of media.
1882 * Decompress compressed blocks.
1887 (*readtape_func)(buf); /* call the actual processing routine */
1891 * Set function pointer for readtape() routine. zflag and magtapein must
1892 * be correctly set before the first call to readtape().
1895 readtape_set(char *buf)
1898 readtape_func = readtape_uncompr;
1902 readtape_func = readtape_comprtape;
1904 readtape_func = readtape_comprfile;
1909 #endif /* HAVE_ZLIB || HAVE_BZLIB || HAVE_LZO */
1912 * This is the original readtape(), it's used for reading uncompressed input.
1913 * Read TP_BSIZE blocks from the input.
1914 * Handle read errors, and end of media.
1917 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
1918 readtape_uncompr(char *buf)
1923 ssize_t rd, newvol, i;
1924 int cnt, seek_failed;
1926 if (blkcnt < numtrec) {
1927 memmove(buf, &tbufptr[(blkcnt++ * TP_BSIZE)], TP_BSIZE);
1933 for (i = 0; i < ntrec; i++)
1934 ((struct s_spcl *)&tapebuf[i * TP_BSIZE])->c_magic = 0;
1937 cnt = ntrec * TP_BSIZE;
1940 if (createtapeposflag)
1941 (void)GetTapePos(&curtapepos);
1946 i = rmtread(&tapebuf[rd], cnt);
1949 i = read(mt, &tapebuf[rd], cnt);
1952 * Check for mid-tape short read error.
1953 * If found, skip rest of buffer and start with the next.
1955 if (!pipein && numtrec < ntrec && i > 0) {
1956 Dprintf(stdout, "mid-media short read error.\n");
1960 * Handle partial block read.
1962 if (pipein && i == 0 && rd > 0)
1964 else if (i > 0 && i != ntrec * TP_BSIZE) {
1973 * Short read. Process the blocks read.
1975 if (i % TP_BSIZE != 0)
1977 "partial block read: %ld should be %ld\n",
1978 (long)i, ntrec * TP_BSIZE);
1979 numtrec = i / TP_BSIZE;
1983 * Handle read error.
1986 fprintf(stderr, "Tape read error while ");
1987 switch (curfile.action) {
1989 fprintf(stderr, "trying to set up tape\n");
1992 fprintf(stderr, "trying to resynchronize\n");
1995 fprintf(stderr, "restoring %s\n", curfile.name);
1998 fprintf(stderr, "skipping over inode %lu\n",
1999 (unsigned long)curfile.ino);
2002 if (!yflag && !reply("continue"))
2004 i = ntrec * TP_BSIZE;
2005 memset(tapebuf, 0, (size_t)i);
2008 seek_failed = (rmtseek(i, 1) < 0);
2011 seek_failed = (LSEEK(mt, i, SEEK_CUR) == (OFF_T)-1);
2014 warn("continuation failed");
2015 if (!yflag && !reply("assume end-of-tape and continue"))
2021 * Handle end of tape.
2024 Vprintf(stdout, "End-of-tape encountered\n");
2033 if (rd % TP_BSIZE != 0)
2034 panic("partial block read: %d should be %d\n",
2035 rd, ntrec * TP_BSIZE);
2037 memmove(&tapebuf[rd], &endoftapemark, TP_BSIZE);
2040 memmove(buf, &tbufptr[(blkcnt++ * TP_BSIZE)], TP_BSIZE);
2045 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
2048 * Read a compressed format block from a file or pipe and uncompress it.
2049 * Attempt to handle read errors, and end of file.
2052 readtape_comprfile(char *buf)
2054 long rl, size, i, ret;
2056 struct tapebuf *tpb;
2058 if (blkcnt < numtrec) {
2059 memmove(buf, &tbufptr[(blkcnt++ * TP_BSIZE)], TP_BSIZE);
2064 /* need to read the next block */
2066 for (i = 0; i < ntrec; i++)
2067 ((struct s_spcl *)&tapebuf[i * TP_BSIZE])->c_magic = 0;
2069 tpb = (struct tapebuf *) tapebuf;
2071 /* read the block prefix */
2072 ret = read_a_block(mt, tapebuf, PREFIXSIZE, &rl);
2073 converttapebuf(tpb);
2075 if (Vflag && (ret == 0 || rl < (int)PREFIXSIZE || tpb->length == 0))
2082 if (size > bufsize) {
2083 /* something's wrong */
2084 Vprintf(stdout, "Prefix size error, max size %d, got %ld\n",
2087 tpb->length = bufsize;
2089 ret = read_a_block(mt, tpb->buf, size, &rl);
2093 tbufptr = decompress_tapebuf(tpb, rl + PREFIXSIZE);
2094 if (tbufptr == NULL) {
2095 msg_read_error("File decompression error while");
2096 if (!yflag && !reply("continue"))
2098 memset(tapebuf, 0, bufsize);
2103 memmove(buf, &tbufptr[(blkcnt++ * TP_BSIZE)], TP_BSIZE);
2109 /* Errors while reading from a file or pipe are catastrophic. Since
2110 * there are no block boundaries, it's impossible to bypass the
2111 * block in error and find the start of the next block.
2114 /* It's possible to have multiple input files using -M
2115 * and -f file1,file2...
2117 Vprintf(stdout, "End-of-File encountered\n");
2127 msg_read_error("Read error while");
2128 /* if (!yflag && !reply("continue")) */
2133 * Read compressed data from a tape and uncompress it.
2134 * Handle read errors, and end of media.
2135 * Since a tape consists of separate physical blocks, we try
2136 * to recover from errors by repositioning the tape to the next
2140 readtape_comprtape(char *buf)
2144 struct tapebuf *tpb;
2147 if (blkcnt < numtrec) {
2148 memmove(buf, &tbufptr[(blkcnt++ * TP_BSIZE)], TP_BSIZE);
2153 /* need to read the next block */
2155 for (i = 0; i < ntrec; i++)
2156 ((struct s_spcl *)&tapebuf[i * TP_BSIZE])->c_magic = 0;
2158 tpb = (struct tapebuf *) tapebuf;
2160 /* read the block */
2161 size = bufsize + PREFIXSIZE;
2162 ret = read_a_block(mt, tapebuf, size, &rl);
2166 converttapebuf(tpb);
2167 tbufptr = decompress_tapebuf(tpb, rl);
2168 if (tbufptr == NULL) {
2169 msg_read_error("Tape decompression error while");
2170 if (!yflag && !reply("continue"))
2172 memset(tapebuf, 0, PREFIXSIZE + bufsize);
2178 /* Handle errors: EOT switches to the next volume, other errors
2179 * attempt to position the tape to the next block.
2182 Vprintf(stdout, "End-of-tape encountered\n");
2191 msg_read_error("Tape read error while");
2192 if (!yflag && !reply("continue"))
2194 memset(tapebuf, 0, PREFIXSIZE + bufsize);
2199 rl = rmtioctl(MTFSR, 1);
2205 rl = ioctl(mt, MTIOCTOP, &tcom);
2209 warn("continuation failed");
2210 if (!yflag && !reply("assume end-of-tape and continue"))
2212 ret = 0; /* end of tape */
2218 memmove(buf, &tbufptr[(blkcnt++ * TP_BSIZE)], TP_BSIZE);
2224 * Decompress a struct tapebuf into a buffer. readsize is the size read
2225 * from the tape/file and is used for error messages. Returns a pointer
2226 * to the location of the uncompressed buffer or NULL on errors.
2227 * Adjust numtrec and complain for a short block.
2230 decompress_tapebuf(struct tapebuf *tpbin, int readsize)
2232 /* If zflag is on, all blocks have a struct tapebuf prefix */
2233 /* zflag gets set in setup() from the dump header */
2234 int cresult, blocklen;
2235 unsigned long worklen;
2236 char *output = NULL,*reason = NULL, *lengtherr = NULL;
2238 /* build a length error message */
2239 blocklen = tpbin->length;
2240 if (readsize < blocklen + (int)PREFIXSIZE)
2241 lengtherr = "short";
2243 if (readsize > blocklen + (int)PREFIXSIZE)
2248 if (tpbin->compressed) {
2249 /* uncompress whatever we read, if it fails, complain later */
2250 if (tpbin->flags == COMPRESS_ZLIB) {
2252 errx(1,"This restore version doesn't support zlib decompression");
2254 cresult = uncompress(comprbuf, &worklen,
2255 tpbin->buf, blocklen);
2261 reason = "not enough memory";
2264 reason = "buffer too small";
2267 reason = "data error";
2272 if (cresult == Z_OK)
2276 #endif /* HAVE_ZLIB */
2278 if (tpbin->flags == COMPRESS_BZLIB) {
2280 errx(1,"This restore version doesn't support bzlib decompression");
2282 unsigned int worklen2 = worklen;
2283 cresult = BZ2_bzBuffToBuffDecompress(
2284 comprbuf, &worklen2,
2285 tpbin->buf, blocklen, 0, 0);
2292 reason = "not enough memory";
2294 case BZ_OUTBUFF_FULL:
2295 reason = "buffer too small";
2298 case BZ_DATA_ERROR_MAGIC:
2299 case BZ_UNEXPECTED_EOF:
2300 reason = "data error";
2305 if (cresult == BZ_OK)
2309 #endif /* HAVE_BZLIB */
2311 if (tpbin->flags == COMPRESS_LZO) {
2313 errx(1,"This restore version doesn't support lzo decompression");
2315 lzo_uint worklen2 = worklen;
2316 cresult = lzo1x_decompress(tpbin->buf, blocklen,
2317 comprbuf, &worklen2, NULL);
2324 case LZO_E_EOF_NOT_FOUND:
2325 reason = "data error";
2330 if (cresult == LZO_E_OK)
2334 #endif /* HAVE_LZO */
2338 output = tpbin->buf;
2342 numtrec = worklen / TP_BSIZE;
2343 if (worklen % TP_BSIZE != 0)
2344 reason = "length mismatch";
2348 fprintf(stderr, "%s compressed block: %d expected: %u\n",
2349 lengtherr, readsize, tpbin->length + PREFIXSIZE);
2350 fprintf(stderr, "decompression error, block %ld: %s\n",
2351 tpblksread+1, reason);
2359 * Print an error message for a read error.
2360 * This was exteracted from the original readtape().
2363 msg_read_error(char *m)
2365 switch (curfile.action) {
2367 fprintf(stderr, "%s trying to set up tape\n", m);
2370 fprintf(stderr, "%s trying to resynchronize\n", m);
2373 fprintf(stderr, "%s restoring %s\n", m, curfile.name);
2376 fprintf(stderr, "%s skipping over inode %lu\n", m,
2377 (unsigned long)curfile.ino);
2381 #endif /* HAVE_ZLIB || HAVE_BZLIB || HAVE_LZO */
2384 * Read the first block and get the blocksize from it. Test
2385 * for a compressed dump tape/file. setup() will make the final
2386 * determination by checking the compressed flag if gethead()
2387 * finds a valid header. The test here is necessary to offset the buffer
2388 * by the size of the compressed prefix. zflag is set here so that
2389 * readtape_set can set the correct function pointer for readtape().
2390 * Note that the first block of each tape/file is not compressed
2391 * and does not have a prefix.
2394 findtapeblksize(void)
2398 struct tapebuf *tpb = (struct tapebuf *) tapebuf;
2399 struct s_spcl spclpt;
2401 for (i = 0; i < ntrec; i++)
2402 ((struct s_spcl *)&tapebuf[i * TP_BSIZE])->c_magic = 0;
2406 * For a pipe or file, read in the first record. For a tape, read
2409 len = magtapein ? ntrec * TP_BSIZE : TP_BSIZE;
2411 if (read_a_block(mt, tapebuf, len, &i) <= 0)
2412 errx(1, "Tape read error on first record");
2414 memcpy(&spclpt, tapebuf, TP_BSIZE);
2415 if (converthead(&spclpt) == FAIL) {
2417 if (converthead(&spclpt) == FAIL) {
2418 /* Special case for old compressed tapes with prefix */
2419 if (magtapein && (i % TP_BSIZE != 0))
2421 errx(1, "Tape is not a dump tape");
2423 fprintf(stderr, "Converting to new file system format.\n");
2426 * If the input is from a file or a pipe, we read TP_BSIZE
2427 * bytes looking for a dump header. If the dump is compressed
2428 * we need to read in the rest of the block, as determined
2429 * by c_ntrec in the dump header. The first block of the
2430 * dump is not compressed and does not have a prefix.
2433 if (spclpt.c_type == TS_TAPE
2434 && spclpt.c_flags & DR_COMPRESSED) {
2435 /* It's a compressed dump file, read in the */
2436 /* rest of the block based on spclpt.c_ntrec. */
2437 if (spclpt.c_ntrec > ntrec)
2438 errx(1, "Tape blocksize is too large, use "
2439 "\'-b %d\' ", spclpt.c_ntrec);
2440 ntrec = spclpt.c_ntrec;
2441 len = (ntrec - 1) * TP_BSIZE;
2445 /* read in the rest of the block based on bufsize */
2446 len = bufsize - TP_BSIZE;
2448 if (read_a_block(mt, tapebuf+TP_BSIZE, len, &i) < 0
2449 || (i != (long)len && i % TP_BSIZE != 0))
2450 errx(1,"Error reading dump file header");
2453 Vprintf(stdout, "Input block size is %ld\n", ntrec);
2455 } /* if (!magtapein) */
2458 * If the input is a tape, we tried to read ntrec * TP_BSIZE bytes.
2459 * If the value of ntrec is too large, we read less than
2460 * what we asked for; adjust the value of ntrec and test for
2461 * a compressed dump tape.
2463 if (i % TP_BSIZE != 0) {
2465 /* may be old format compressed dump tape with a prefix */
2466 memcpy(&spclpt, tpb->buf, TP_BSIZE);
2468 if (converthead(&spclpt) == FAIL) {
2470 if (converthead(&spclpt) == FAIL)
2471 errx(1, "Tape is not a dump tape");
2472 fprintf(stderr, "Converting to new file system format.\n");
2474 if (i % TP_BSIZE == PREFIXSIZE
2475 && tpb->compressed == 0
2476 && spclpt.c_type == TS_TAPE
2477 && spclpt.c_flags & DR_COMPRESSED) {
2480 if (tpb->length > bufsize)
2481 errx(1, "Tape blocksize is too large, use "
2482 "\'-b %d\' ", tpb->length / TP_BSIZE);
2485 errx(1, "Tape block size (%ld) is not a multiple of dump block size (%d)",
2488 ntrec = i / TP_BSIZE;
2489 if (spclpt.c_type == TS_TAPE) {
2490 if (spclpt.c_flags & DR_COMPRESSED)
2492 if (spclpt.c_ntrec > ntrec)
2493 errx(1, "Tape blocksize is too large, use "
2494 "\'-b %d\' ", spclpt.c_ntrec);
2497 Vprintf(stdout, "Tape block size is %ld\n", ntrec);
2501 * Read a block of data handling all of the messy details.
2503 static int read_a_block(int fd, char *buf, size_t len, long *lengthread)
2511 i = rmtread(buf, size);
2514 i = read(fd, buf, size);
2517 break; /* EOD or error */
2520 break; /* block at a time for mt */
2523 *lengthread = len - size;
2542 setmagtapein(void) {
2543 struct mtget mt_stat;
2544 static int done = 0;
2549 /* need to know if input is really from a tape */
2555 magtapein = ioctl(mt, MTIOCGET, (char *)&mt_stat) == 0;
2558 Vprintf(stdout,"Input is from a %s %s\n",
2559 host ? "remote" : "local",
2560 magtapein ? "tape" :
2561 Vflag ? "multi-volume (no tape)" : "file/pipe");
2565 * Read the next block from the tape.
2566 * Check to see if it is one of several vintage headers.
2567 * If it is an old style header, convert it to a new style header.
2568 * If it is not any valid header, return an error.
2571 gethead(struct s_spcl *buf)
2573 readtape((char *)buf);
2574 return converthead(buf);
2578 converthead(struct s_spcl *buf)
2586 char dummy[TP_BSIZE];
2593 u_int16_t c_inumber;
2598 u_int16_t odi_nlink;
2614 if (buf->c_magic != NFS_MAGIC) {
2615 if (swabi(buf->c_magic) != NFS_MAGIC)
2618 Vprintf(stdout, "Note: Doing Byte swapping\n");
2622 if (checksum((int *)buf) == FAIL)
2625 swabst((u_char *)"8i4s31i528bi192b3i", (u_char *)buf);
2628 memcpy(&u_ospcl.s_ospcl, buf, TP_BSIZE);
2629 if (checksum((int *)(&u_ospcl.s_ospcl)) == FAIL)
2631 if (u_ospcl.s_ospcl.c_magic == OFS_MAGIC) {
2632 memset((char *)buf, 0, (long)TP_BSIZE);
2633 buf->c_type = u_ospcl.s_ospcl.c_type;
2634 buf->c_date = u_ospcl.s_ospcl.c_date;
2635 buf->c_ddate = u_ospcl.s_ospcl.c_ddate;
2636 buf->c_volume = u_ospcl.s_ospcl.c_volume;
2637 buf->c_tapea = u_ospcl.s_ospcl.c_tapea;
2638 buf->c_inumber = u_ospcl.s_ospcl.c_inumber;
2639 buf->c_checksum = u_ospcl.s_ospcl.c_checksum;
2640 buf->c_magic = u_ospcl.s_ospcl.c_magic;
2641 buf->c_dinode.di_mode = u_ospcl.s_ospcl.c_dinode.odi_mode;
2642 buf->c_dinode.di_nlink = u_ospcl.s_ospcl.c_dinode.odi_nlink;
2643 buf->c_dinode.di_uid = u_ospcl.s_ospcl.c_dinode.odi_uid;
2644 buf->c_dinode.di_gid = u_ospcl.s_ospcl.c_dinode.odi_gid;
2645 buf->c_dinode.di_size = u_ospcl.s_ospcl.c_dinode.odi_size;
2646 buf->c_dinode.di_rdev = u_ospcl.s_ospcl.c_dinode.odi_rdev;
2647 #if defined(__linux__) || defined(sunos)
2648 buf->c_dinode.di_atime.tv_sec = u_ospcl.s_ospcl.c_dinode.odi_atime;
2649 buf->c_dinode.di_mtime.tv_sec = u_ospcl.s_ospcl.c_dinode.odi_mtime;
2650 buf->c_dinode.di_ctime.tv_sec = u_ospcl.s_ospcl.c_dinode.odi_ctime;
2651 #else /* __linux__ || sunos */
2652 buf->c_dinode.di_atime = u_ospcl.s_ospcl.c_dinode.odi_atime;
2653 buf->c_dinode.di_mtime = u_ospcl.s_ospcl.c_dinode.odi_mtime;
2654 buf->c_dinode.di_ctime = u_ospcl.s_ospcl.c_dinode.odi_ctime;
2655 #endif /* __linux__ || sunos */
2656 buf->c_count = u_ospcl.s_ospcl.c_count;
2657 memmove(buf->c_addr, u_ospcl.s_ospcl.c_fill, (long)256);
2659 else if (u_ospcl.s_ospcl.c_magic == FS_UFS2_MAGIC) {
2660 buf->c_date = (int32_t)(*(int64_t *)&u_ospcl.dummy[896]);
2661 buf->c_ddate = (int32_t)(*(int64_t *)&u_ospcl.dummy[904]);
2662 buf->c_tapea = (int32_t)(*(int64_t *)&u_ospcl.dummy[912]);
2663 buf->c_firstrec = (int32_t)(*(int64_t *)&u_ospcl.dummy[920]);
2665 buf->c_extattributes = 0;
2666 buf->c_flags |= DR_NEWINODEFMT;
2671 buf->c_magic = NFS_MAGIC;
2674 if ((buf->c_dinode.di_size == 0 || buf->c_dinode.di_size > 0xfffffff) &&
2675 (buf->c_dinode.di_mode & IFMT) == IFDIR && Qcvt == 0) {
2676 qcvt.qval = buf->c_dinode.di_size;
2677 if (qcvt.val[0] || qcvt.val[1]) {
2678 Vprintf(stdout, "Note: Doing Quad swapping\n");
2683 qcvt.qval = buf->c_dinode.di_size;
2685 qcvt.val[1] = qcvt.val[0];
2687 buf->c_dinode.di_size = qcvt.qval;
2691 switch (buf->c_type) {
2696 * Have to patch up missing information in bit map headers
2699 buf->c_dinode.di_size = buf->c_count * TP_BSIZE;
2700 if (buf->c_count > TP_NINDIR)
2703 for (i = 0; i < buf->c_count; i++)
2708 if ((buf->c_flags & DR_NEWINODEFMT) == 0)
2713 if (buf->c_flags & DR_INODEINFO) {
2714 memcpy(volinfo, buf->c_inos, TP_NINOS * sizeof(dump_ino_t));
2716 swabst((u_char *)"128i", (u_char *)volinfo);
2725 panic("gethead: unknown inode type %d\n", buf->c_type);
2729 * If we are restoring a filesystem with old format inodes,
2730 * copy the uid/gid to the new location.
2733 buf->c_dinode.di_uid = buf->c_dinode.di_ouid;
2734 buf->c_dinode.di_gid = buf->c_dinode.di_ogid;
2742 converttapebuf(struct tapebuf *tpb)
2746 unsigned int length:28;
2747 unsigned int flags:3;
2748 unsigned int compressed:1;
2750 swabst((u_char *)"i", (u_char *)tpb);
2751 memcpy(&tb, tpb, 4);
2752 tpb->length = tb.length;
2753 tpb->flags = tb.flags;
2754 tpb->compressed = tb.compressed;
2759 * Check that a header is where it belongs and predict the next header
2762 accthdr(struct s_spcl *header)
2764 static dump_ino_t previno = 0x7fffffff;
2765 static int prevtype;
2766 static long predict;
2769 if (header->c_type == TS_TAPE) {
2770 fprintf(stderr, "Volume header (%s inode format) ",
2771 oldinofmt ? "old" : "new");
2772 if (header->c_firstrec)
2773 fprintf(stderr, "begins with record %d",
2774 header->c_firstrec);
2775 fprintf(stderr, "\n");
2776 previno = 0x7fffffff;
2779 if (previno == 0x7fffffff)
2783 fprintf(stderr, "Dumped inodes map header");
2786 fprintf(stderr, "Used inodes map header");
2789 fprintf(stderr, "File header, ino %lu", (unsigned long)previno);
2792 fprintf(stderr, "File continuation header, ino %ld", (long)previno);
2795 fprintf(stderr, "End of tape header");
2798 if (predict != blksread - 1)
2799 fprintf(stderr, "; predicted %ld blocks, got %ld blocks",
2800 predict, blksread - 1);
2801 fprintf(stderr, "\n");
2804 if (header->c_type != TS_END)
2805 for (i = 0; i < header->c_count; i++)
2806 if (readmapflag || header->c_addr[i] != 0)
2810 prevtype = header->c_type;
2811 previno = header->c_inumber;
2815 * Find an inode header.
2816 * Complain if had to skip, and complain is set.
2819 findinode(struct s_spcl *header)
2821 static long skipcnt = 0;
2825 curfile.name = "<name unknown>";
2826 curfile.action = UNKNOWN;
2830 if (header->c_magic != NFS_MAGIC) {
2832 while (gethead(header) == FAIL ||
2833 header->c_date != dumpdate)
2836 switch (header->c_type) {
2840 * Skip up to the beginning of the next record
2842 for (i = 0; i < header->c_count; i++)
2843 if (header->c_addr[i])
2845 while (gethead(header) == FAIL ||
2846 header->c_date != dumpdate)
2851 curfile.dip = &header->c_dinode;
2852 curfile.ino = header->c_inumber;
2856 curfile.ino = maxino;
2860 curfile.name = "<file removal list>";
2864 curfile.name = "<file dump list>";
2868 panic("unexpected tape header\n");
2872 panic("unknown tape header type %d\n", spcl.c_type);
2876 } while (header->c_type == TS_ADDR);
2881 fprintf(stderr, "resync restore, skipped %ld blocks\n",
2891 j = sizeof(union u_spcl) / sizeof(int);
2898 /* What happens if we want to read restore tapes
2899 for a 16bit int machine??? */
2905 if (i != CHECKSUM) {
2906 fprintf(stderr, "Checksum error %o, inode %lu file %s\n", i,
2907 (unsigned long)curfile.ino, curfile.name);
2917 #include <varargs.h>
2922 msg(const char *fmt, ...)
2935 (void)vfprintf(stderr, fmt, ap);
2938 #endif /* RRESTORE */
2941 swab16(u_char *sp, int n)
2946 c = sp[0]; sp[0] = sp[1]; sp[1] = c;
2953 swab32(u_char *sp, int n)
2958 c = sp[0]; sp[0] = sp[3]; sp[3] = c;
2959 c = sp[1]; sp[1] = sp[2]; sp[2] = c;
2966 swab64(u_char *sp, int n)
2971 c = sp[0]; sp[0] = sp[7]; sp[7] = c;
2972 c = sp[1]; sp[1] = sp[6]; sp[6] = c;
2973 c = sp[2]; sp[2] = sp[5]; sp[5] = c;
2974 c = sp[3]; sp[3] = sp[4]; sp[4] = c;
2981 swabst(u_char *cp, u_char *sp)
2987 case '0': case '1': case '2': case '3': case '4':
2988 case '5': case '6': case '7': case '8': case '9':
2989 n = (n * 10) + (*cp++ - '0');
2992 case 's': case 'w': case 'h':
3010 default: /* Any other character, like 'b' counts as byte. */
3024 swabst((u_char *)"i", (u_char *)&x);
3032 swabst((u_char *)"l", (u_char *)&x);
3038 RequestVol(long tnum)
3049 int uscsi_flags; /* read, write, etc. see below */
3050 short uscsi_status; /* resulting status */
3051 short uscsi_timeout; /* Command Timeout */
3052 caddr_t uscsi_cdb; /* cdb to send to target */
3053 caddr_t uscsi_bufaddr; /* i/o source/destination */
3054 u_int uscsi_buflen; /* size of i/o to take place */
3055 u_int uscsi_resid; /* resid from i/o operation */
3056 u_char uscsi_cdblen; /* # of valid cdb bytes */
3057 u_char uscsi_rqlen; /* size of uscsi_rqbuf */
3058 u_char uscsi_rqstatus; /* status of request sense cmd */
3059 u_char uscsi_rqresid; /* resid of request sense cmd */
3060 caddr_t uscsi_rqbuf; /* request sense buffer */
3061 void *uscsi_reserved_5; /* Reserved for Future Use */
3064 #define CDB_GROUP0 6 /* 6-byte cdb's */
3065 #define CDB_GROUP1 10 /* 10-byte cdb's */
3066 #define CDB_GROUP2 10 /* 10-byte cdb's */
3067 #define CDB_GROUP3 0 /* reserved */
3068 #define CDB_GROUP4 16 /* 16-byte cdb's */
3069 #define CDB_GROUP5 12 /* 12-byte cdb's */
3070 #define CDB_GROUP6 0 /* reserved */
3071 #define CDB_GROUP7 0 /* reserved */
3073 #define USCSI_WRITE 0x00000 /* send data to device */
3074 #define USCSI_SILENT 0x00001 /* no error messages */
3075 #define USCSI_DIAGNOSE 0x00002 /* fail if any error occurs */
3076 #define USCSI_ISOLATE 0x00004 /* isolate from normal commands */
3077 #define USCSI_READ 0x00008 /* get data from device */
3078 #define USCSI_RESET 0x04000 /* Reset target */
3079 #define USCSI_RESET_ALL 0x08000 /* Reset all targets */
3080 #define USCSI_RQENABLE 0x10000 /* Enable Request Sense extensions */
3082 #define USCSIIOC (0x04 << 8)
3083 #define USCSICMD (USCSIIOC|201) /* user scsi command */
3085 #define USCSI_TIMEOUT 30
3086 #define USCSI_SHORT_TIMEOUT 900
3087 #define USCSI_LONG_TIMEOUT 14000
3089 #define B(s,i) ((unsigned char)((s) >> i))
3090 #define B1(s) ((unsigned char)(s))
3092 #define MSB4(s,v) *(s)=B(v,24),(s)[1]=B(v,16), (s)[2]=B(v,8), (s)[3]=B1(v)
3096 GetTapePos(long long *pos)
3099 struct uscsi_cmd scmd;
3104 (void)memset((void *)buf, 0, sizeof(buf));
3105 (void)memset((void *)&scmd, 0, sizeof(scmd));
3106 scmd.uscsi_flags = USCSI_READ|USCSI_SILENT;
3107 scmd.uscsi_timeout = USCSI_TIMEOUT;
3108 scmd.uscsi_cdb = buf;
3109 scmd.uscsi_cdblen = CDB_GROUP1;
3110 buf[0] = 0x34; /* read position */
3112 (void)memset((void *)parm, 0, 512);
3113 scmd.uscsi_bufaddr = parm;
3114 scmd.uscsi_buflen = 56;
3115 if (ioctl(fdsmtc, USCSICMD, &scmd) == -1) {
3119 (void)memcpy(&lpos, &parm[4], sizeof(long));
3125 GotoTapePos(long long pos)
3128 struct uscsi_cmd scmd;
3131 long lpos = (long)pos;
3133 (void)memset((void *)buf, 0, sizeof(buf));
3134 (void)memset((void *)&scmd, 0, sizeof(scmd));
3135 scmd.uscsi_flags = USCSI_WRITE|USCSI_SILENT;
3136 scmd.uscsi_timeout = 360; /* 5 Minutes */
3137 scmd.uscsi_cdb = buf;
3138 scmd.uscsi_cdblen = CDB_GROUP1;
3139 buf[0] = 0x2b; /* locate */
3141 MSB4(&buf[3], lpos);
3142 (void)memset((void *)parm, 0, 512);
3143 scmd.uscsi_bufaddr = NULL;
3144 scmd.uscsi_buflen = 0;
3145 if (ioctl(fdsmtc, USCSICMD, &scmd) == -1) {
3153 #define LSEEK_GET_TAPEPOS 10
3154 #define LSEEK_GO2_TAPEPOS 11
3157 typedef struct mt_pos {
3160 } MTPosRec, *MTPosPtr;
3164 * get the current position of the tape
3167 GetTapePos(long long *pos)
3173 *pos = (long long) rmtseek((OFF_T)0, (int)LSEEK_GET_TAPEPOS);
3182 err = (ioctl(mt, MTIOCPOS, &mtpos) < 0);
3183 *pos = (long long)mtpos;
3186 *pos = LSEEK(mt, 0, SEEK_CUR);
3192 fprintf(stdout, "[%ld] error: %d (getting tapepos: %lld)\n",
3193 (unsigned long)getpid(), err, *pos);
3200 * go to specified position on tape
3203 GotoTapePos(long long pos)
3209 err = (rmtseek((OFF_T)pos, (int)LSEEK_GO2_TAPEPOS) < 0);
3216 buf.mt_count = (int) pos;
3217 err = (ioctl(mt, MTIOCTOP, &buf) < 0);
3220 pos = LSEEK(mt, pos, SEEK_SET);
3226 fprintf(stdout, "[%ld] error: %d (setting tapepos: %lld)\n",
3227 (unsigned long)getpid(), err, pos);
3232 #endif /* __linux__ */
3235 * read next data from tape to re-sync
3238 ReReadFromTape(void)
3242 if (gethead(&spcl) == FAIL) {
3244 fprintf(stdout, "DEBUG 1 gethead failed\n");
3252 ReReadInodeFromTape(dump_ino_t theino)
3261 } while (!(spcl.c_inumber == theino && spcl.c_type == TS_INODE && spcl.c_date == dumpdate));
3263 fprintf(stderr, "DEBUG: %ld reads\n", cntloop);
3264 fprintf(stderr, "DEBUG: bufsize %ld\n", bufsize);
3265 fprintf(stderr, "DEBUG: ntrec %ld\n", ntrec);
3266 fprintf(stderr, "DEBUG: %ld reads\n", cntloop);
3274 OpenSMTCmt(char *themagtape)
3276 if (GetSCSIIDFromPath(themagtape, &scsiid)) {
3277 fprintf(stderr, "can't get SCSI-ID for %s\n", themagtape);
3281 fprintf(stderr, "can't get SCSI-ID for %s\n", themagtape);
3284 sprintf(smtcpath, "/dev/rsmtc%ld,0", scsiid);
3285 if ((fdsmtc = open(smtcpath, O_RDWR)) == -1) {
3286 fprintf(stderr, "can't open smtc device: %s, %d\n", smtcpath, errno);
3292 #endif /* USE_QFA */