]>
git.wh0rd.org - dump.git/blob - restore/tape.c
b383866a6dd99bc9535d3d81d66ec7d35d107e39
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 1.83 2004/12/10 13:31:21 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 setmagtapein
__P((void));
172 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
173 static void newcomprbuf
__P((int));
174 static void (*readtape_func
) __P((char *));
175 static void readtape_set
__P((char *));
176 static void readtape_uncompr
__P((char *));
177 static void readtape_comprfile
__P((char *));
178 static void readtape_comprtape
__P((char *));
179 static char *decompress_tapebuf
__P((struct tapebuf
*, int));
180 static void msg_read_error
__P((char *));
182 static int read_a_block
__P((int, char *, size_t, long *));
183 #define PREFIXSIZE sizeof(struct tapebuf)
185 #define COMPARE_ONTHEFLY 1
188 static int ifile
; /* input file for compare */
189 static int cmperror
; /* compare error */
190 static void xtrcmpfile
__P((char *, size_t));
191 static void xtrcmpskip
__P((char *, size_t));
194 static int readmapflag
;
195 static int readingmaps
; /* set to 1 while reading the maps */
198 static DumpFinderInfo gFndrInfo
;
202 * Set up an input source. This is called from main.c before setup() is.
205 setinput(char *source
)
214 newtapebuf(NTREC
> HIGHDENSITYTREC
? NTREC
: HIGHDENSITYTREC
);
218 if ((n
= strchr(source
, ':'))) {
219 for (i
= 0; i
< (n
- source
); i
++) {
220 if (source
[i
] == '/')
223 if (source
[i
] != '/') {
225 source
= strchr(host
, ':');
227 if (rmthost(host
) == 0)
232 if (strcmp(source
, "-") == 0) {
234 * Since input is coming from a pipe we must establish
235 * our own connection to the terminal.
237 terminal
= fopen(_PATH_TTY
, "r");
238 if (terminal
== NULL
) {
239 warn("cannot open %s", _PATH_TTY
);
240 terminal
= fopen(_PATH_DEVNULL
, "r");
241 if (terminal
== NULL
)
242 err(1, "cannot open %s", _PATH_DEVNULL
);
246 setuid(getuid()); /* no longer need or want root privileges */
248 strncpy(magtapeprefix
, source
, MAXPATHLEN
);
249 magtapeprefix
[MAXPATHLEN
-1] = '\0';
250 snprintf(magtape
, MAXPATHLEN
, "%s%03d", source
, 1);
253 strncpy(magtape
, source
, MAXPATHLEN
);
254 magtape
[MAXPATHLEN
- 1] = '\0';
258 newtapebuf(long size
)
260 static int tapebufsize
= -1;
263 bufsize
= ntrec
* TP_BSIZE
;
264 if (size
<= tapebufsize
)
268 tapebuf
= malloc(size
* TP_BSIZE
+ sizeof(struct tapebuf
));
270 errx(1, "Cannot allocate space for tape buffer");
274 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
276 newcomprbuf(int size
)
278 size_t buf_size
= (size
+1) * TP_BSIZE
+ sizeof(struct tapebuf
);
279 if (buf_size
<= comprlen
)
282 if (comprbuf
!= NULL
)
284 comprbuf
= malloc(comprlen
);
285 if (comprbuf
== NULL
)
286 errx(1, "Cannot allocate space for decompress buffer");
288 #endif /* HAVE_ZLIB || HAVE_BZLIB || HAVE_LZO */
291 * Verify that the tape drive can be accessed and
292 * that it actually is a dump tape.
297 int i
, j
, *ip
, bot_code
;
301 Vprintf(stdout
, "Verify tape and initialize maps\n");
302 if (Afile
== NULL
&& bot_script
) {
303 msg("Launching %s\n", bot_script
);
304 bot_code
= system_command(bot_script
, magtape
, 1);
305 if (bot_code
!= 0 && bot_code
!= 1) {
306 msg("Restore aborted by the beginning of tape script\n");
318 mt
= rmtopen(temptape
, O_RDONLY
);
324 mt
= OPEN(temptape
, O_RDONLY
, 0);
326 err(1, "%s", temptape
);
332 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
333 readtape_func
= readtape_set
;
334 #if defined(HAVE_LZO)
335 if (lzo_init() != LZO_E_OK
) {
336 msg("internal error - lzo_init failed \n");
343 if (gethead(&spcl
) == FAIL
) {
344 blkcnt
--; /* push back this block */
348 if (gethead(&spcl
) == FAIL
)
349 errx(1, "Tape is not a dump tape");
350 fprintf(stderr
, "Converting to new file system format.\n");
354 fprintf(stderr
, "Dump tape is compressed.\n");
355 #if !defined(HAVE_ZLIB) && !defined(HAVE_BZLIB) && !defined(HAVE_LZO)
356 errx(1,"This restore version doesn't support decompression");
357 #endif /* !HAVE_ZLIB && !HAVE_BZLIB */
360 endoftapemark
.s_spcl
.c_magic
= cvtflag
? OFS_MAGIC
: NFS_MAGIC
;
361 endoftapemark
.s_spcl
.c_type
= TS_END
;
362 ip
= (int *)&endoftapemark
;
363 j
= sizeof(union u_spcl
) / sizeof(int);
368 endoftapemark
.s_spcl
.c_checksum
= CHECKSUM
- i
;
370 if (vflag
|| command
== 't' || command
== 'C')
373 if (tapeposflag
&& (unsigned long)spcl
.c_date
!= qfadumpdate
)
374 errx(1, "different QFA/dumpdates detected\n");
376 if (filesys
[0] == '\0') {
378 strncpy(filesys
, spcl
.c_filesys
, NAMELEN
);
379 filesys
[NAMELEN
- 1] = '\0';
380 dirptr
= strstr(filesys
, " (dir");
384 dumptime
= spcl
.c_ddate
;
385 dumpdate
= spcl
.c_date
;
386 if (STAT(".", &stbuf
) < 0)
387 err(1, "cannot stat .");
388 if (stbuf
.st_blksize
> 0 && stbuf
.st_blksize
< TP_BSIZE
)
390 if (stbuf
.st_blksize
>= TP_BSIZE
&& stbuf
.st_blksize
<= MAXBSIZE
)
391 fssize
= stbuf
.st_blksize
;
392 if (((fssize
- 1) & fssize
) != 0)
393 errx(1, "bad block size %ld", fssize
);
394 if (spcl
.c_volume
!= 1)
395 errx(1, "Tape is not volume 1 of the dump");
396 if (gethead(&spcl
) == FAIL
) {
397 Dprintf(stdout
, "header read failed at %ld blocks\n", (long)blksread
);
398 panic("no header after volume mark!\n");
402 if (spcl
.c_type
!= TS_CLRI
)
403 errx(1, "Cannot find file removal list");
404 maxino
= (spcl
.c_count
* TP_BSIZE
* NBBY
) + 1;
405 map
= calloc((unsigned)1, (unsigned)howmany(maxino
, NBBY
));
407 errx(1, "no memory for active inode map");
409 curfile
.action
= USING
;
410 getfile(xtrmap
, xtrmapskip
);
411 while (spcl
.c_type
== TS_ADDR
) {
412 /* Recompute maxino and the map */
413 dump_ino_t oldmaxino
= maxino
;
414 maxino
+= (spcl
.c_count
* TP_BSIZE
* NBBY
) + 1;
415 resizemaps(oldmaxino
, maxino
);
418 spcl
.c_dinode
.di_size
= spcl
.c_count
* TP_BSIZE
;
419 getfile(xtrmap
, xtrmapskip
);
421 Dprintf(stdout
, "maxino = %lu\n", (unsigned long)maxino
);
422 if (spcl
.c_type
!= TS_BITS
) {
423 if (spcl
.c_type
== TS_END
) {
424 msg("Cannot find file dump list, assuming empty tape\n");
427 errx(1, "Cannot find file dump list");
429 map
= calloc((unsigned)1, (unsigned)howmany(maxino
, NBBY
));
430 if (map
== (char *)NULL
)
431 errx(1, "no memory for file dump list");
433 curfile
.action
= USING
;
434 getfile(xtrmap
, xtrmapskip
);
435 while (spcl
.c_type
== TS_ADDR
) {
436 spcl
.c_dinode
.di_size
= spcl
.c_count
* TP_BSIZE
;
437 getfile(xtrmap
, xtrmapskip
);
440 * If there may be whiteout entries on the tape, pretend that the
441 * whiteout inode exists, so that the whiteout entries can be
445 SETINO(WINO
, dumpmap
);
451 * Prompt user to load a new dump volume.
452 * "Nextvol" is the next suggested volume to use.
453 * This suggested volume is enforced when doing full
454 * or incremental restores, but can be overridden by
455 * the user when only extracting a subset of the files.
460 long newvol
= 0, wantnext
= 0, i
;
461 long saved_blksread
= 0, saved_tpblksread
= 0;
462 union u_spcl tmpspcl
;
463 # define tmpbuf tmpspcl.s_spcl
465 int haderror
= 0, bot_code
= 1;
475 panic("Changing volumes on pipe input?\n");
480 saved_blksread
= blksread
;
481 saved_tpblksread
= tpblksread
;
482 #if defined(USE_QFA) && defined(sunos)
483 if (createtapeposflag
|| tapeposflag
)
488 exit(1); /* pipes do not get a second chance */
489 if (aflag
|| curfile
.action
!= SKIP
) {
496 while (newvol
<= 0) {
497 if (tapesread
== 0) {
498 fprintf(stderr
, "%s%s%s%s%s",
499 "You have not read any volumes yet.\n",
500 "Unless you know which volume your",
501 " file(s) are on you should start\n",
502 "with the last volume and work",
503 " towards the first.\n");
505 fprintf(stderr
, "You have read volumes");
507 for (i
= 1; i
< 32; i
++)
508 if (tapesread
& (1 << i
)) {
509 fprintf(stderr
, "%s%ld", buf
, (long)i
);
512 fprintf(stderr
, "\n");
515 fprintf(stderr
, "Specify next volume # (none if no more volumes): ");
516 (void) fflush(stderr
);
517 (void) fgets(buf
, TP_BSIZE
, terminal
);
518 } while (!feof(terminal
) && buf
[0] == '\n');
521 if (!strcmp(buf
, "none\n")) {
528 "Volume numbers are positive numerics\n");
531 if (newvol
== volno
) {
532 tapesread
|= 1 << volno
;
533 #if defined(USE_QFA) && defined(sunos)
534 if (createtapeposflag
|| tapeposflag
) {
535 if (OpenSMTCmt(magtape
) < 0) {
547 * if using an archive file, reset its name so readtape()
548 * could properly use remote access.
553 snprintf(magtape
, MAXPATHLEN
, "%s%03ld", magtapeprefix
, newvol
);
554 magtape
[MAXPATHLEN
- 1] = '\0';
556 if (bot_script
&& !haderror
) {
557 msg("Launching %s\n", bot_script
);
558 bot_code
= system_command(bot_script
, magtape
, newvol
);
559 if (bot_code
!= 0 && bot_code
!= 1) {
560 msg("Restore aborted by the beginning of tape script\n");
564 if (haderror
|| (bot_code
&& !Mflag
)) {
567 fprintf(stderr
, "Mount volume %ld\n", (long)newvol
);
569 fprintf(stderr
, "Mount tape volume %ld\n", (long)newvol
);
571 fprintf(stderr
, "Enter ``none'' if there are no more tapes\n");
573 fprintf(stderr
, "then enter volume name (default: %s) ", magtape
);
575 fprintf(stderr
, "otherwise enter tape name (default: %s) ", magtape
);
577 (void) fflush(stderr
);
578 (void) fgets(buf
, TP_BSIZE
, terminal
);
581 if (!strcmp(buf
, "none\n")) {
585 if (buf
[0] != '\n') {
587 (void) strncpy(magtape
, buf
, sizeof(magtape
));
588 magtape
[sizeof(magtape
) - 1] = '\0';
589 if ((pos
= strchr(magtape
, '\n')))
590 magtape
[pos
- magtape
] = '\0';
593 #if defined(USE_QFA) && defined(sunos)
594 if (createtapeposflag
|| tapeposflag
) {
595 if (OpenSMTCmt(magtape
) < 0) {
604 mt
= rmtopen(magtape
, O_RDONLY
);
607 mt
= OPEN(magtape
, O_RDONLY
, 0);
610 fprintf(stderr
, "Cannot open %s\n", magtape
);
617 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
618 readtape_func
= readtape_set
;
624 if (gethead(&tmpbuf
) == FAIL
) {
625 Dprintf(stdout
, "header read failed at %ld blocks\n", (long)blksread
);
626 fprintf(stderr
, "tape is not dump tape\n");
629 blksread
= saved_blksread
;
630 tpblksread
= saved_tpblksread
;
633 if (tmpbuf
.c_volume
!= volno
) {
634 fprintf(stderr
, "Wrong volume (%d)\n", tmpbuf
.c_volume
);
637 blksread
= saved_blksread
;
638 tpblksread
= saved_tpblksread
;
641 if (tmpbuf
.c_date
!= dumpdate
|| tmpbuf
.c_ddate
!= dumptime
) {
642 fprintf(stderr
, "Wrong dump date\n\tgot: %s",
644 ctime(&tmpbuf
.c_date
));
646 ctime4(&tmpbuf
.c_date
));
648 fprintf(stderr
, "\twanted: %s", ctime(&dumpdate
));
651 blksread
= saved_blksread
;
652 tpblksread
= saved_tpblksread
;
655 tapesread
|= 1 << volno
;
657 * If continuing from the previous volume, skip over any
658 * blocks read already at the end of the previous volume.
660 * If coming to this volume at random, skip to the beginning
661 * of the next record.
664 fprintf(stderr
, "Dump tape is compressed.\n");
665 #if !defined(HAVE_ZLIB) && !defined(HAVE_BZLIB) && !defined(HAVE_LZO)
666 errx(1,"This restore version doesn't support decompression");
667 #endif /* !HAVE_ZLIB && !HAVE_BZLIB */
669 Dprintf(stdout
, "read %ld recs, tape starts with %ld\n",
670 tpblksread
- 1, (long)tmpbuf
.c_firstrec
);
671 if (tmpbuf
.c_type
== TS_TAPE
&& (tmpbuf
.c_flags
& DR_NEWHEADER
)) {
673 tpblksread
= tmpbuf
.c_firstrec
+ 1;
674 for (i
= tmpbuf
.c_count
; i
> 0; i
--)
676 } else if (tmpbuf
.c_firstrec
> 0 &&
677 tmpbuf
.c_firstrec
< tpblksread
- 1) {
679 * -1 since we've read the volume header
681 i
= tpblksread
- tmpbuf
.c_firstrec
- 1;
682 Dprintf(stderr
, "Skipping %ld duplicate record%s.\n",
683 (long)i
, i
> 1 ? "s" : "");
688 if (curfile
.action
== USING
) {
690 panic("active file into volume 1\n");
694 * Skip up to the beginning of the next record
696 if (tmpbuf
.c_type
== TS_TAPE
&& (tmpbuf
.c_flags
& DR_NEWHEADER
))
697 for (i
= tmpbuf
.c_count
; i
> 0; i
--)
699 (void) gethead(&spcl
);
703 siglongjmp(restart
, 1);
708 * Handle unexpected EOF.
714 if (gettingfile
&& curfile
.action
== USING
) {
715 printf("Warning: %s %s\n",
716 "End-of-input encountered while extracting", curfile
.name
);
718 curfile
.name
= "<name unknown>";
719 curfile
.action
= UNKNOWN
;
721 curfile
.ino
= maxino
;
724 siglongjmp(restart
, 1);
729 * handle multiple dumps per tape by skipping forward to the
737 if (dumpnum
== 1 || volno
!= 1)
740 errx(1, "Cannot have multiple dumps on pipe input");
742 tcom
.mt_count
= dumpnum
- 1;
745 if (rmtioctl(MTFSF
, dumpnum
- 1) < 0) {
746 fprintf(stderr
, "rmtioctl MTFSF: %s\n", strerror(errno
));
751 if (ioctl(mt
, (int)MTIOCTOP
, (char *)&tcom
) < 0) {
752 fprintf(stderr
, "rmtioctl MTFSF: %s\n", strerror(errno
));
754 /* warn("ioctl MTFSF"); */
762 Vprintf(stdout
, "Dump date: %s", ctime(&spcl
.c_date
));
763 Vprintf(stdout
, "Dumped from: %s",
764 (spcl
.c_ddate
== 0) ? "the epoch\n" : ctime(&spcl
.c_ddate
));
765 if (spcl
.c_host
[0] == '\0')
767 Vprintf(stdout
, "Level %d dump of %s on %s:%s\n",
768 spcl
.c_level
, spcl
.c_filesys
, spcl
.c_host
, spcl
.c_dev
);
769 Vprintf(stdout
, "Label: %s\n", spcl
.c_label
);
771 fprintf(stdout
, "Dump date: %s", ctime4(&spcl
.c_date
));
772 fprintf(stdout
, "Dumped from: %s",
773 (spcl
.c_ddate
== 0) ? "the epoch\n" : ctime4(&spcl
.c_ddate
));
774 if (spcl
.c_host
[0] == '\0')
776 fprintf(stdout
, "Level %d dump of %s on %s:%s\n",
777 spcl
.c_level
, spcl
.c_filesys
, spcl
.c_host
, spcl
.c_dev
);
778 fprintf(stdout
, "Label: %s\n", spcl
.c_label
);
787 if (volinfo
[1] == ROOTINO
) {
788 printf("Starting inode numbers by volume:\n");
789 for (i
= 1; i
< (int)TP_NINOS
&& volinfo
[i
] != 0; ++i
)
790 printf("\tVolume %d: %lu\n", i
, (unsigned long)volinfo
[i
]);
796 extractfile(struct entry
*ep
, int doremove
)
800 struct timeval timep
[2];
801 char *name
= myname(ep
);
803 /* If removal is requested (-r mode) do remove it unless
804 * we are extracting a metadata only inode */
805 if (spcl
.c_flags
& DR_METAONLY
) {
806 Vprintf(stdout
, "file %s is metadata only\n", name
);
811 ep
->e_flags
&= ~REMOVED
;
816 curfile
.action
= USING
;
817 #if defined(__linux__) || defined(sunos)
818 timep
[0].tv_sec
= curfile
.dip
->di_atime
.tv_sec
;
819 timep
[0].tv_usec
= curfile
.dip
->di_atime
.tv_usec
;
820 timep
[1].tv_sec
= curfile
.dip
->di_mtime
.tv_sec
;
821 timep
[1].tv_usec
= curfile
.dip
->di_mtime
.tv_usec
;
822 #else /* __linux__ || sunos */
823 timep
[0].tv_sec
= curfile
.dip
->di_atime
;
824 timep
[0].tv_usec
= curfile
.dip
->di_atimensec
/ 1000;
825 timep
[1].tv_sec
= curfile
.dip
->di_mtime
;
826 timep
[1].tv_usec
= curfile
.dip
->di_mtimensec
/ 1000;
827 #endif /* __linux__ */
828 mode
= curfile
.dip
->di_mode
;
829 flags
= curfile
.dip
->di_flags
;
830 switch (mode
& IFMT
) {
833 fprintf(stderr
, "%s: unknown file mode 0%o\n", name
, mode
);
838 Vprintf(stdout
, "skipped socket %s\n", name
);
844 if (ep
== NULL
|| ep
->e_flags
& EXTRACT
)
845 panic("unextracted directory %s\n", name
);
849 Vprintf(stdout
, "extract file %s\n", name
);
850 return (genliteraldir(name
, curfile
.ino
));
855 uid_t luid
= curfile
.dip
->di_uid
;
856 gid_t lgid
= curfile
.dip
->di_gid
;
858 if (! (spcl
.c_flags
& DR_METAONLY
)) {
861 getfile(xtrlnkfile
, xtrlnkskip
);
864 "%s: zero length symbolic link (ignored)\n", name
);
867 if (linkit(lnkbuf
, name
, SYMLINK
) == FAIL
)
874 (void) lchown(name
, luid
, lgid
);
880 Vprintf(stdout
, "extract fifo %s\n", name
);
885 if (! (spcl
.c_flags
& DR_METAONLY
)) {
888 if (mkfifo(name
, mode
) < 0) {
889 warn("%s: cannot create fifo", name
);
894 (void) chown(name
, curfile
.dip
->di_uid
, curfile
.dip
->di_gid
);
895 (void) chmod(name
, mode
);
898 (void) fsetflags(name
, flags
);
902 warn("%s: cannot call chflags", name
);
903 /* (void) chflags(name, flags); */
906 (void) chflags(name
, flags
);
915 Vprintf(stdout
, "extract special file %s\n", name
);
920 if (! (spcl
.c_flags
& DR_METAONLY
)) {
923 if (mknod(name
, mode
, (int)curfile
.dip
->di_rdev
) < 0) {
924 warn("%s: cannot create special file", name
);
929 (void) chown(name
, curfile
.dip
->di_uid
, curfile
.dip
->di_gid
);
930 (void) chmod(name
, mode
);
934 warn("%s: fsetflags called on a special file", name
);
935 (void) fsetflags(name
, flags
);
940 warn("%s: cannot call chflags on a special file", name
);
941 /* (void) chflags(name, flags); */
945 warn("%s: chflags called on a special file", name
);
946 (void) chflags(name
, flags
);
956 uid_t luid
= curfile
.dip
->di_uid
;
957 gid_t lgid
= curfile
.dip
->di_gid
;
959 Vprintf(stdout
, "extract file %s\n", name
);
964 if (! (spcl
.c_flags
& DR_METAONLY
)) {
967 if ((ofile
= OPEN(name
, O_WRONLY
| O_CREAT
| O_TRUNC
,
969 warn("%s: cannot create file", name
);
973 getfile(xtrfile
, xtrskip
);
978 (void) chown(name
, luid
, lgid
);
979 (void) chmod(name
, mode
);
982 (void) fsetflags(name
, flags
);
986 warn("%s: cannot call chflags", name
);
987 /* (void) chflags(name, flags); */
990 (void) chflags(name
, flags
);
1002 extractfinderinfoufs(char *name
)
1005 char oFileRsrc
[MAXPATHLEN
];
1008 struct timeval timep
[2];
1011 char path
[MAXPATHLEN
], fname
[MAXPATHLEN
];
1014 curfile
.name
= name
;
1015 curfile
.action
= USING
;
1016 timep
[0].tv_sec
= curfile
.dip
->di_atime
.tv_sec
;
1017 timep
[0].tv_usec
= curfile
.dip
->di_atime
.tv_usec
;
1018 timep
[1].tv_sec
= curfile
.dip
->di_mtime
.tv_sec
;
1019 timep
[1].tv_usec
= curfile
.dip
->di_mtime
.tv_usec
;
1020 mode
= curfile
.dip
->di_mode
;
1021 flags
= curfile
.dip
->di_flags
;
1022 uid
= curfile
.dip
->di_uid
;
1023 gid
= curfile
.dip
->di_gid
;
1025 switch (mode
& IFMT
) {
1028 fprintf(stderr
, "%s: (extr. finfoufs) unknown file mode 0%o\n", name
, mode
);
1033 fprintf(stderr
, "%s: (extr. finfoufs[IFDIR]) unknown file mode 0%o\n", name
, mode
);
1042 Vprintf(stdout
, "extract finderinfo file %s\n", name
);
1047 getfile(xtrfilefinderinfo
, xtrskip
);
1049 GetPathFile(name
, path
, fname
);
1050 strcpy(oFileRsrc
, path
);
1051 strcat(oFileRsrc
, "._");
1052 strcat(oFileRsrc
, fname
);
1054 if ((err
= CreateAppleDoubleFileRes(oFileRsrc
, &gFndrInfo
.fndrinfo
,
1055 mode
, flags
, timep
, uid
, gid
)) != 0) {
1056 fprintf(stderr
, "%s: cannot create finderinfo: %s\n",
1057 name
, strerror(errno
));
1068 extractresourceufs(char *name
)
1070 char oFileRsrc
[MAXPATHLEN
];
1073 struct timeval timep
[2];
1074 char path
[MAXPATHLEN
], fname
[MAXPATHLEN
];
1084 curfile
.name
= name
;
1085 curfile
.action
= USING
;
1086 timep
[0].tv_sec
= curfile
.dip
->di_atime
.tv_sec
;
1087 timep
[0].tv_usec
= curfile
.dip
->di_atime
.tv_usec
;
1088 timep
[1].tv_sec
= curfile
.dip
->di_mtime
.tv_sec
;
1089 timep
[1].tv_usec
= curfile
.dip
->di_mtime
.tv_usec
;
1090 mode
= curfile
.dip
->di_mode
;
1091 flags
= curfile
.dip
->di_flags
;
1092 uid
= curfile
.dip
->di_uid
;
1093 gid
= curfile
.dip
->di_gid
;
1094 di_size
= curfile
.dip
->di_size
;
1096 switch (mode
& IFMT
) {
1099 fprintf(stderr
, "%s: (extr. resufs) unknown file mode 0%o\n", name
, mode
);
1104 fprintf(stderr
, "%s: (extr. resufs [IFDIR]) unknown file mode 0%o\n", name
, mode
);
1113 Vprintf(stdout
, "extract resource file %s\n", name
);
1119 GetPathFile(name
, path
, fname
);
1120 strcpy(oFileRsrc
, path
);
1121 strcat(oFileRsrc
, "._");
1122 strcat(oFileRsrc
, fname
);
1124 if ((ofile
= open(oFileRsrc
, O_RDONLY
, 0)) < 0) {
1125 fprintf(stderr
, "%s: cannot read finderinfo: %s\n",
1126 name
, strerror(errno
));
1130 read(ofile
, buf
, 70);
1131 (void) close(ofile
);
1133 hp
= (ASDHeaderPtr
)p
;
1136 p
+= sizeof(ASDHeader
) - CORRECT
;
1137 ep
= (ASDEntryPtr
)p
;
1138 /* the finderinfo entry */
1139 ep
->offset
+= sizeof(ASDEntry
);
1142 p
+= sizeof(ASDEntry
);
1143 /* the finderinfo data */
1144 bcopy(p
, p
+ sizeof(ASDEntry
), INFOLEN
);
1145 ep
= (ASDEntryPtr
)p
;
1146 /* the new resourcefork entry */
1147 ep
->entryID
= EntryRSRCFork
;
1148 ep
->offset
= loff
+ INFOLEN
;
1150 /* write the new appledouble entries to the file */
1151 if ((ofile
= open(oFileRsrc
, O_WRONLY
| O_CREAT
| O_TRUNC
, 0666)) < 0) {
1152 fprintf(stderr
, "%s: cannot create resource file: %s\n",
1153 name
, strerror(errno
));
1157 write(ofile
, buf
, 70 + sizeof(ASDEntry
));
1158 /* and add the resource data from tape */
1159 getfile(xtrfile
, xtrskip
);
1161 (void) fchown(ofile
, uid
, gid
);
1162 (void) fchmod(ofile
, mode
);
1163 (void) close(ofile
);
1164 (void) fsetflags(oFileRsrc
, flags
);
1165 utimes(oFileRsrc
, timep
);
1170 #endif /* DUMP_MACOSX */
1173 * skip over bit maps on the tape
1179 while (spcl
.c_type
== TS_BITS
|| spcl
.c_type
== TS_CLRI
)
1184 * skip over a file on the tape
1190 curfile
.action
= SKIP
;
1191 getfile(xtrnull
, xtrnull
);
1195 * Extract a file from the tape.
1196 * When an allocated block is found it is passed to the fill function;
1197 * when an unallocated block (hole) is found, a zeroed buffer is passed
1198 * to the skip function.
1201 getfile(void (*fill
) __P((char *, size_t)), void (*skip
) __P((char *, size_t)))
1204 volatile int curblk
= 0;
1205 volatile quad_t size
= spcl
.c_dinode
.di_size
;
1206 volatile int last_write_was_hole
= 0;
1207 quad_t origsize
= size
;
1208 static char clearedbuf
[MAXBSIZE
];
1209 char buf
[MAXBSIZE
/ TP_BSIZE
][TP_BSIZE
];
1210 char junk
[TP_BSIZE
];
1212 if (spcl
.c_type
== TS_END
)
1213 panic("ran off end of tape\n");
1214 if (spcl
.c_magic
!= NFS_MAGIC
)
1215 panic("not at beginning of a file\n");
1216 if (!gettingfile
&& setjmp(restart
) != 0)
1220 for (i
= 0; i
< spcl
.c_count
; i
++) {
1221 if (readmapflag
|| spcl
.c_addr
[i
]) {
1222 readtape(&buf
[curblk
++][0]);
1223 if (curblk
== fssize
/ TP_BSIZE
) {
1224 (*fill
)((char *)buf
, (size_t)(size
> TP_BSIZE
?
1225 fssize
: (curblk
- 1) * TP_BSIZE
+ size
));
1227 last_write_was_hole
= 0;
1231 (*fill
)((char *)buf
, (size_t)(size
> TP_BSIZE
?
1233 (curblk
- 1) * TP_BSIZE
+ size
));
1236 (*skip
)(clearedbuf
, (long)(size
> TP_BSIZE
?
1238 last_write_was_hole
= 1;
1240 if ((size
-= TP_BSIZE
) <= 0) {
1241 for (i
++; i
< spcl
.c_count
; i
++)
1242 if (readmapflag
|| spcl
.c_addr
[i
])
1247 if (gethead(&spcl
) == GOOD
&& size
> 0) {
1248 if (spcl
.c_type
== TS_ADDR
)
1251 "Missing address (header) block for %s at %ld blocks\n",
1252 curfile
.name
, (long)blksread
);
1255 (*fill
)((char *)buf
, (size_t)((curblk
* TP_BSIZE
) + size
));
1256 last_write_was_hole
= 0;
1259 fprintf(stderr
, "Missing blocks at the end of %s, assuming hole\n", curfile
.name
);
1261 size_t skp
= size
> TP_BSIZE
? TP_BSIZE
: size
;
1262 (*skip
)(clearedbuf
, skp
);
1265 last_write_was_hole
= 1;
1267 if (last_write_was_hole
) {
1268 FTRUNCATE(ofile
, origsize
);
1276 * Write out the next block of a file.
1279 xtrfile(char *buf
, size_t size
)
1284 if (write(ofile
, buf
, (int) size
) == -1)
1285 err(1, "write error extracting inode %lu, name %s\nwrite",
1286 (unsigned long)curfile
.ino
, curfile
.name
);
1291 xtrfilefinderinfo(char *buf
, size_t size
)
1295 bcopy(buf
, &gFndrInfo
, size
);
1297 #endif /* DUMP_MACOSX */
1300 * Skip over a hole in a file.
1304 xtrskip(UNUSED(char *buf
), size_t size
)
1307 if (LSEEK(ofile
, (OFF_T
)size
, SEEK_CUR
) == -1)
1308 err(1, "seek error extracting inode %lu, name %s\nlseek",
1309 (unsigned long)curfile
.ino
, curfile
.name
);
1313 * Collect the next block of a symbolic link.
1316 xtrlnkfile(char *buf
, size_t size
)
1320 if (pathlen
> MAXPATHLEN
) {
1321 buf
[size
- 1] = '\0';
1322 errx(1, "symbolic link name: %s->%s%s; too long %d",
1323 curfile
.name
, lnkbuf
, buf
, pathlen
);
1325 (void) strcat(lnkbuf
, buf
);
1326 lnkbuf
[pathlen
] = '\0';
1330 * Skip over a hole in a symbolic link (should never happen).
1334 xtrlnkskip(UNUSED(char *buf
), UNUSED(size_t size
))
1337 errx(1, "unallocated block in symbolic link %s", curfile
.name
);
1341 * Collect the next block of a bit map.
1344 xtrmap(char *buf
, size_t size
)
1347 memmove(map
, buf
, size
);
1352 * Skip over a hole in a bit map (should never happen).
1356 xtrmapskip(UNUSED(char *buf
), size_t size
)
1359 panic("hole in map\n");
1364 * Noop, when an extraction function is not needed.
1368 xtrnull(UNUSED(char *buf
), UNUSED(size_t size
))
1374 #if COMPARE_ONTHEFLY
1376 * Compare the next block of a file.
1379 xtrcmpfile(char *buf
, size_t size
)
1381 static char cmpbuf
[MAXBSIZE
];
1386 if (read(ifile
, cmpbuf
, size
) != (ssize_t
)size
) {
1387 fprintf(stderr
, "%s: size has changed.\n",
1393 if (memcmp(buf
, cmpbuf
, size
) != 0) {
1394 fprintf(stderr
, "%s: tape and disk copies are different\n",
1402 * Skip over a hole in a file.
1405 xtrcmpskip(UNUSED(char *buf
), size_t size
)
1407 static char cmpbuf
[MAXBSIZE
];
1413 if (read(ifile
, cmpbuf
, size
) != (ssize_t
)size
) {
1414 fprintf(stderr
, "%s: size has changed.\n",
1420 for (i
= 0; i
< (int)size
; ++i
)
1421 if (cmpbuf
[i
] != '\0') {
1422 fprintf(stderr
, "%s: tape and disk copies are different\n",
1428 #endif /* COMPARE_ONTHEFLY */
1430 #if !COMPARE_ONTHEFLY
1432 do_cmpfiles(int fd_tape
, int fd_disk
, OFF_T size
)
1434 static char buf_tape
[BUFSIZ
];
1435 static char buf_disk
[BUFSIZ
];
1440 if ((n_tape
= read(fd_tape
, buf_tape
, sizeof(buf_tape
))) < 1) {
1441 close(fd_tape
), close(fd_disk
);
1442 panic("do_cmpfiles: unexpected EOF[1]");
1444 if ((n_disk
= read(fd_disk
, buf_disk
, sizeof(buf_tape
))) < 1) {
1445 close(fd_tape
), close(fd_disk
);
1446 panic("do_cmpfiles: unexpected EOF[2]");
1448 if (n_tape
!= n_disk
) {
1449 close(fd_tape
), close(fd_disk
);
1450 panic("do_cmpfiles: sizes different!");
1452 if (memcmp(buf_tape
, buf_disk
, (size_t)n_tape
) != 0) return (1);
1458 /* for debugging compare problems */
1459 #undef COMPARE_FAIL_KEEP_FILE
1462 #ifdef COMPARE_FAIL_KEEP_FILE
1463 /* return true if tapefile should be unlinked after compare */
1468 cmpfiles(char *tapefile
, char *diskfile
, struct STAT
*sbuf_disk
)
1470 struct STAT sbuf_tape
;
1471 int fd_tape
, fd_disk
;
1473 if (STAT(tapefile
, &sbuf_tape
) != 0) {
1474 panic("Can't lstat tmp file %s: %s\n", tapefile
,
1479 if (sbuf_disk
->st_size
!= sbuf_tape
.st_size
) {
1481 "%s: size changed from %lld to %lld.\n",
1482 diskfile
, (long long)sbuf_tape
.st_size
, (long long)sbuf_disk
->st_size
);
1484 #ifdef COMPARE_FAIL_KEEP_FILE
1491 if ((fd_tape
= OPEN(tapefile
, O_RDONLY
)) < 0) {
1492 panic("Can't open %s: %s\n", tapefile
, strerror(errno
));
1495 if ((fd_disk
= OPEN(diskfile
, O_RDONLY
)) < 0) {
1497 panic("Can't open %s: %s\n", diskfile
, strerror(errno
));
1501 if (do_cmpfiles(fd_tape
, fd_disk
, sbuf_tape
.st_size
)) {
1502 fprintf(stderr
, "%s: tape and disk copies are different\n",
1507 #ifdef COMPARE_FAIL_KEEP_FILE
1508 /* rename the file to live in /tmp */
1509 /* rename `tapefile' to /tmp/<basename of diskfile> */
1511 char *p
= strrchr(diskfile
, '/');
1512 char newname
[MAXPATHLEN
];
1514 panic("can't find / in %s\n", diskfile
);
1516 snprintf(newname
, sizeof(newname
), "%s/debug/%s", tmpdir
, p
+ 1);
1517 if (rename(tapefile
, newname
)) {
1518 panic("rename from %s to %s failed: %s\n",
1522 fprintf(stderr
, "*** %s saved to %s\n",
1527 /* don't unlink the file (it's not there anymore */
1536 #ifdef COMPARE_FAIL_KEEP_FILE
1540 #endif /* !COMPARE_ONTHEFLY */
1542 #if !COMPARE_ONTHEFLY
1543 static char tmpfilename
[MAXPATHLEN
];
1547 comparefile(char *name
)
1552 #if !COMPARE_ONTHEFLY
1553 static char *tmpfile
= NULL
;
1557 curfile
.name
= name
;
1558 curfile
.action
= USING
;
1559 mode
= curfile
.dip
->di_mode
;
1561 if ((mode
& IFMT
) == IFSOCK
) {
1562 Vprintf(stdout
, "skipped socket %s\n", name
);
1567 if ((r
= LSTAT(name
, &sb
)) != 0) {
1568 warn("%s: does not exist (%d)", name
, r
);
1574 Vprintf(stdout
, "comparing %s (size: %lld, mode: 0%o)\n", name
,
1575 (long long)sb
.st_size
, mode
);
1577 if (sb
.st_mode
!= mode
) {
1578 fprintf(stderr
, "%s: mode changed from 0%o to 0%o.\n",
1579 name
, mode
& 07777, sb
.st_mode
& 07777);
1582 if (spcl
.c_flags
& DR_METAONLY
) {
1586 switch (mode
& IFMT
) {
1600 char lbuf
[MAXPATHLEN
+ 1];
1603 if (!(sb
.st_mode
& S_IFLNK
)) {
1604 fprintf(stderr
, "%s: is no longer a symbolic link\n",
1611 getfile(xtrlnkfile
, xtrlnkskip
);
1614 "%s: zero length symbolic link (ignored)\n",
1619 if ((lsize
= readlink(name
, lbuf
, MAXPATHLEN
)) < 0) {
1620 panic("readlink of %s failed: %s", name
,
1625 if (strcmp(lbuf
, lnkbuf
) != 0) {
1627 "%s: symbolic link changed from %s to %s.\n",
1628 name
, lnkbuf
, lbuf
);
1637 if (!(sb
.st_mode
& (S_IFCHR
|S_IFBLK
))) {
1638 fprintf(stderr
, "%s: no longer a special file\n",
1645 if (sb
.st_rdev
!= (dev_t
)curfile
.dip
->di_rdev
) {
1647 "%s: device changed from %d,%d to %d,%d.\n",
1649 major(curfile
.dip
->di_rdev
),
1650 minor(curfile
.dip
->di_rdev
),
1659 #if COMPARE_ONTHEFLY
1660 if ((ifile
= OPEN(name
, O_RDONLY
)) < 0) {
1661 panic("Can't open %s: %s\n", name
, strerror(errno
));
1667 getfile(xtrcmpfile
, xtrcmpskip
);
1670 if (read(ifile
, &c
, 1) != 0) {
1671 fprintf(stderr
, "%s: size has changed.\n",
1681 if (tmpfile
== NULL
) {
1682 /* argument to mktemp() must not be in RO space: */
1683 snprintf(tmpfilename
, sizeof(tmpfilename
), "%s/restoreCXXXXXX", tmpdir
);
1684 tmpfile
= mktemp(&tmpfilename
[0]);
1686 if ((STAT(tmpfile
, &stemp
) == 0) && (unlink(tmpfile
) != 0)) {
1687 panic("cannot delete tmp file %s: %s\n",
1688 tmpfile
, strerror(errno
));
1690 if ((ofile
= OPEN(tmpfile
, O_WRONLY
| O_CREAT
| O_TRUNC
, 0600)) < 0) {
1691 panic("cannot create file temp file %s: %s\n",
1692 name
, strerror(errno
));
1694 getfile(xtrfile
, xtrskip
);
1695 (void) close(ofile
);
1696 #ifdef COMPARE_FAIL_KEEP_FILE
1697 if (cmpfiles(tmpfile
, name
, &sb
))
1700 cmpfiles(tmpfile
, name
, &sb
);
1703 #endif /* COMPARE_ONTHEFLY */
1709 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
1710 static void (*readtape_func
)(char *) = readtape_set
;
1713 * Read TP_BSIZE blocks from the input.
1714 * Handle read errors, and end of media.
1715 * Decompress compressed blocks.
1720 (*readtape_func
)(buf
); /* call the actual processing routine */
1724 * Set function pointer for readtape() routine. zflag and magtapein must
1725 * be correctly set before the first call to readtape().
1728 readtape_set(char *buf
)
1731 readtape_func
= readtape_uncompr
;
1735 readtape_func
= readtape_comprtape
;
1737 readtape_func
= readtape_comprfile
;
1742 #endif /* HAVE_ZLIB || HAVE_BZLIB || HAVE_LZO */
1745 * This is the original readtape(), it's used for reading uncompressed input.
1746 * Read TP_BSIZE blocks from the input.
1747 * Handle read errors, and end of media.
1750 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
1751 readtape_uncompr(char *buf
)
1756 ssize_t rd
, newvol
, i
;
1757 int cnt
, seek_failed
;
1759 if (blkcnt
< numtrec
) {
1760 memmove(buf
, &tbufptr
[(blkcnt
++ * TP_BSIZE
)], TP_BSIZE
);
1766 for (i
= 0; i
< ntrec
; i
++)
1767 ((struct s_spcl
*)&tapebuf
[i
* TP_BSIZE
])->c_magic
= 0;
1770 cnt
= ntrec
* TP_BSIZE
;
1773 if (createtapeposflag
)
1774 (void)GetTapePos(&curtapepos
);
1779 i
= rmtread(&tapebuf
[rd
], cnt
);
1782 i
= read(mt
, &tapebuf
[rd
], cnt
);
1785 * Check for mid-tape short read error.
1786 * If found, skip rest of buffer and start with the next.
1788 if (!pipein
&& numtrec
< ntrec
&& i
> 0) {
1789 Dprintf(stdout
, "mid-media short read error.\n");
1793 * Handle partial block read.
1795 if (pipein
&& i
== 0 && rd
> 0)
1797 else if (i
> 0 && i
!= ntrec
* TP_BSIZE
) {
1806 * Short read. Process the blocks read.
1808 if (i
% TP_BSIZE
!= 0)
1810 "partial block read: %ld should be %ld\n",
1811 (long)i
, ntrec
* TP_BSIZE
);
1812 numtrec
= i
/ TP_BSIZE
;
1816 * Handle read error.
1819 fprintf(stderr
, "Tape read error while ");
1820 switch (curfile
.action
) {
1822 fprintf(stderr
, "trying to set up tape\n");
1825 fprintf(stderr
, "trying to resynchronize\n");
1828 fprintf(stderr
, "restoring %s\n", curfile
.name
);
1831 fprintf(stderr
, "skipping over inode %lu\n",
1832 (unsigned long)curfile
.ino
);
1835 if (!yflag
&& !reply("continue"))
1837 i
= ntrec
* TP_BSIZE
;
1838 memset(tapebuf
, 0, (size_t)i
);
1841 seek_failed
= (rmtseek(i
, 1) < 0);
1844 seek_failed
= (LSEEK(mt
, i
, SEEK_CUR
) == (OFF_T
)-1);
1847 warn("continuation failed");
1848 if (!yflag
&& !reply("assume end-of-tape and continue"))
1854 * Handle end of tape.
1857 Vprintf(stdout
, "End-of-tape encountered\n");
1866 if (rd
% TP_BSIZE
!= 0)
1867 panic("partial block read: %d should be %d\n",
1868 rd
, ntrec
* TP_BSIZE
);
1870 memmove(&tapebuf
[rd
], &endoftapemark
, TP_BSIZE
);
1873 memmove(buf
, &tbufptr
[(blkcnt
++ * TP_BSIZE
)], TP_BSIZE
);
1878 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
1881 * Read a compressed format block from a file or pipe and uncompress it.
1882 * Attempt to handle read errors, and end of file.
1885 readtape_comprfile(char *buf
)
1887 long rl
, size
, i
, ret
;
1889 struct tapebuf
*tpb
;
1891 if (blkcnt
< numtrec
) {
1892 memmove(buf
, &tbufptr
[(blkcnt
++ * TP_BSIZE
)], TP_BSIZE
);
1897 /* need to read the next block */
1899 for (i
= 0; i
< ntrec
; i
++)
1900 ((struct s_spcl
*)&tapebuf
[i
* TP_BSIZE
])->c_magic
= 0;
1902 tpb
= (struct tapebuf
*) tapebuf
;
1904 /* read the block prefix */
1905 ret
= read_a_block(mt
, tapebuf
, PREFIXSIZE
, &rl
);
1906 converttapebuf(tpb
);
1908 if (Vflag
&& (ret
== 0 || rl
< (int)PREFIXSIZE
|| tpb
->length
== 0))
1915 if (size
> bufsize
) {
1916 /* something's wrong */
1917 Vprintf(stdout
, "Prefix size error, max size %d, got %ld\n",
1920 tpb
->length
= bufsize
;
1922 ret
= read_a_block(mt
, tpb
->buf
, size
, &rl
);
1926 tbufptr
= decompress_tapebuf(tpb
, rl
+ PREFIXSIZE
);
1927 if (tbufptr
== NULL
) {
1928 msg_read_error("File decompression error while");
1929 if (!yflag
&& !reply("continue"))
1931 memset(tapebuf
, 0, bufsize
);
1936 memmove(buf
, &tbufptr
[(blkcnt
++ * TP_BSIZE
)], TP_BSIZE
);
1942 /* Errors while reading from a file or pipe are catastrophic. Since
1943 * there are no block boundaries, it's impossible to bypass the
1944 * block in error and find the start of the next block.
1947 /* It's possible to have multiple input files using -M
1948 * and -f file1,file2...
1950 Vprintf(stdout
, "End-of-File encountered\n");
1960 msg_read_error("Read error while");
1961 /* if (!yflag && !reply("continue")) */
1966 * Read compressed data from a tape and uncompress it.
1967 * Handle read errors, and end of media.
1968 * Since a tape consists of separate physical blocks, we try
1969 * to recover from errors by repositioning the tape to the next
1973 readtape_comprtape(char *buf
)
1977 struct tapebuf
*tpb
;
1980 if (blkcnt
< numtrec
) {
1981 memmove(buf
, &tbufptr
[(blkcnt
++ * TP_BSIZE
)], TP_BSIZE
);
1986 /* need to read the next block */
1988 for (i
= 0; i
< ntrec
; i
++)
1989 ((struct s_spcl
*)&tapebuf
[i
* TP_BSIZE
])->c_magic
= 0;
1991 tpb
= (struct tapebuf
*) tapebuf
;
1993 /* read the block */
1994 size
= bufsize
+ PREFIXSIZE
;
1995 ret
= read_a_block(mt
, tapebuf
, size
, &rl
);
1999 converttapebuf(tpb
);
2000 tbufptr
= decompress_tapebuf(tpb
, rl
);
2001 if (tbufptr
== NULL
) {
2002 msg_read_error("Tape decompression error while");
2003 if (!yflag
&& !reply("continue"))
2005 memset(tapebuf
, 0, PREFIXSIZE
+ bufsize
);
2011 /* Handle errors: EOT switches to the next volume, other errors
2012 * attempt to position the tape to the next block.
2015 Vprintf(stdout
, "End-of-tape encountered\n");
2024 msg_read_error("Tape read error while");
2025 if (!yflag
&& !reply("continue"))
2027 memset(tapebuf
, 0, PREFIXSIZE
+ bufsize
);
2032 rl
= rmtioctl(MTFSR
, 1);
2038 rl
= ioctl(mt
, MTIOCTOP
, &tcom
);
2042 warn("continuation failed");
2043 if (!yflag
&& !reply("assume end-of-tape and continue"))
2045 ret
= 0; /* end of tape */
2051 memmove(buf
, &tbufptr
[(blkcnt
++ * TP_BSIZE
)], TP_BSIZE
);
2057 * Decompress a struct tapebuf into a buffer. readsize is the size read
2058 * from the tape/file and is used for error messages. Returns a pointer
2059 * to the location of the uncompressed buffer or NULL on errors.
2060 * Adjust numtrec and complain for a short block.
2063 decompress_tapebuf(struct tapebuf
*tpbin
, int readsize
)
2065 /* If zflag is on, all blocks have a struct tapebuf prefix */
2066 /* zflag gets set in setup() from the dump header */
2067 int cresult
, blocklen
;
2068 unsigned long worklen
;
2069 char *output
= NULL
,*reason
= NULL
, *lengtherr
= NULL
;
2071 /* build a length error message */
2072 blocklen
= tpbin
->length
;
2073 if (readsize
< blocklen
+ (int)PREFIXSIZE
)
2074 lengtherr
= "short";
2076 if (readsize
> blocklen
+ (int)PREFIXSIZE
)
2081 if (tpbin
->compressed
) {
2082 /* uncompress whatever we read, if it fails, complain later */
2083 if (tpbin
->flags
== COMPRESS_ZLIB
) {
2085 errx(1,"This restore version doesn't support zlib decompression");
2087 cresult
= uncompress(comprbuf
, &worklen
,
2088 tpbin
->buf
, blocklen
);
2094 reason
= "not enough memory";
2097 reason
= "buffer too small";
2100 reason
= "data error";
2105 if (cresult
== Z_OK
)
2109 #endif /* HAVE_ZLIB */
2111 if (tpbin
->flags
== COMPRESS_BZLIB
) {
2113 errx(1,"This restore version doesn't support bzlib decompression");
2115 unsigned int worklen2
= worklen
;
2116 cresult
= BZ2_bzBuffToBuffDecompress(
2117 comprbuf
, &worklen2
,
2118 tpbin
->buf
, blocklen
, 0, 0);
2125 reason
= "not enough memory";
2127 case BZ_OUTBUFF_FULL
:
2128 reason
= "buffer too small";
2131 case BZ_DATA_ERROR_MAGIC
:
2132 case BZ_UNEXPECTED_EOF
:
2133 reason
= "data error";
2138 if (cresult
== BZ_OK
)
2142 #endif /* HAVE_BZLIB */
2144 if (tpbin
->flags
== COMPRESS_LZO
) {
2146 errx(1,"This restore version doesn't support lzo decompression");
2148 lzo_uint worklen2
= worklen
;
2149 cresult
= lzo1x_decompress(tpbin
->buf
, blocklen
,
2150 comprbuf
, &worklen2
, NULL
);
2157 case LZO_E_EOF_NOT_FOUND
:
2158 reason
= "data error";
2163 if (cresult
== LZO_E_OK
)
2167 #endif /* HAVE_LZO */
2171 output
= tpbin
->buf
;
2175 numtrec
= worklen
/ TP_BSIZE
;
2176 if (worklen
% TP_BSIZE
!= 0)
2177 reason
= "length mismatch";
2181 fprintf(stderr
, "%s compressed block: %d expected: %u\n",
2182 lengtherr
, readsize
, tpbin
->length
+ PREFIXSIZE
);
2183 fprintf(stderr
, "decompression error, block %ld: %s\n",
2184 tpblksread
+1, reason
);
2192 * Print an error message for a read error.
2193 * This was exteracted from the original readtape().
2196 msg_read_error(char *m
)
2198 switch (curfile
.action
) {
2200 fprintf(stderr
, "%s trying to set up tape\n", m
);
2203 fprintf(stderr
, "%s trying to resynchronize\n", m
);
2206 fprintf(stderr
, "%s restoring %s\n", m
, curfile
.name
);
2209 fprintf(stderr
, "%s skipping over inode %lu\n", m
,
2210 (unsigned long)curfile
.ino
);
2214 #endif /* HAVE_ZLIB || HAVE_BZLIB || HAVE_LZO */
2217 * Read the first block and get the blocksize from it. Test
2218 * for a compressed dump tape/file. setup() will make the final
2219 * determination by checking the compressed flag if gethead()
2220 * finds a valid header. The test here is necessary to offset the buffer
2221 * by the size of the compressed prefix. zflag is set here so that
2222 * readtape_set can set the correct function pointer for readtape().
2223 * Note that the first block of each tape/file is not compressed
2224 * and does not have a prefix.
2227 findtapeblksize(void)
2231 struct tapebuf
*tpb
= (struct tapebuf
*) tapebuf
;
2232 struct s_spcl spclpt
;
2234 for (i
= 0; i
< ntrec
; i
++)
2235 ((struct s_spcl
*)&tapebuf
[i
* TP_BSIZE
])->c_magic
= 0;
2239 * For a pipe or file, read in the first record. For a tape, read
2242 len
= magtapein
? ntrec
* TP_BSIZE
: TP_BSIZE
;
2244 if (read_a_block(mt
, tapebuf
, len
, &i
) <= 0)
2245 errx(1, "Tape read error on first record");
2247 memcpy(&spclpt
, tapebuf
, TP_BSIZE
);
2248 if (converthead(&spclpt
) == FAIL
) {
2250 if (converthead(&spclpt
) == FAIL
) {
2251 /* Special case for old compressed tapes with prefix */
2252 if (magtapein
&& (i
% TP_BSIZE
!= 0))
2254 errx(1, "Tape is not a dump tape");
2256 fprintf(stderr
, "Converting to new file system format.\n");
2259 * If the input is from a file or a pipe, we read TP_BSIZE
2260 * bytes looking for a dump header. If the dump is compressed
2261 * we need to read in the rest of the block, as determined
2262 * by c_ntrec in the dump header. The first block of the
2263 * dump is not compressed and does not have a prefix.
2266 if (spclpt
.c_type
== TS_TAPE
2267 && spclpt
.c_flags
& DR_COMPRESSED
) {
2268 /* It's a compressed dump file, read in the */
2269 /* rest of the block based on spclpt.c_ntrec. */
2270 if (spclpt
.c_ntrec
> ntrec
)
2271 errx(1, "Tape blocksize is too large, use "
2272 "\'-b %d\' ", spclpt
.c_ntrec
);
2273 ntrec
= spclpt
.c_ntrec
;
2274 len
= (ntrec
- 1) * TP_BSIZE
;
2278 /* read in the rest of the block based on bufsize */
2279 len
= bufsize
- TP_BSIZE
;
2281 if (read_a_block(mt
, tapebuf
+TP_BSIZE
, len
, &i
) < 0
2282 || (i
!= (long)len
&& i
% TP_BSIZE
!= 0))
2283 errx(1,"Error reading dump file header");
2286 Vprintf(stdout
, "Input block size is %ld\n", ntrec
);
2288 } /* if (!magtapein) */
2291 * If the input is a tape, we tried to read ntrec * TP_BSIZE bytes.
2292 * If the value of ntrec is too large, we read less than
2293 * what we asked for; adjust the value of ntrec and test for
2294 * a compressed dump tape.
2296 if (i
% TP_BSIZE
!= 0) {
2298 /* may be old format compressed dump tape with a prefix */
2299 memcpy(&spclpt
, tpb
->buf
, TP_BSIZE
);
2301 if (converthead(&spclpt
) == FAIL
) {
2303 if (converthead(&spclpt
) == FAIL
)
2304 errx(1, "Tape is not a dump tape");
2305 fprintf(stderr
, "Converting to new file system format.\n");
2307 if (i
% TP_BSIZE
== PREFIXSIZE
2308 && tpb
->compressed
== 0
2309 && spclpt
.c_type
== TS_TAPE
2310 && spclpt
.c_flags
& DR_COMPRESSED
) {
2313 if (tpb
->length
> bufsize
)
2314 errx(1, "Tape blocksize is too large, use "
2315 "\'-b %d\' ", tpb
->length
/ TP_BSIZE
);
2318 errx(1, "Tape block size (%ld) is not a multiple of dump block size (%d)",
2321 ntrec
= i
/ TP_BSIZE
;
2322 if (spclpt
.c_type
== TS_TAPE
) {
2323 if (spclpt
.c_flags
& DR_COMPRESSED
)
2325 if (spclpt
.c_ntrec
> ntrec
)
2326 errx(1, "Tape blocksize is too large, use "
2327 "\'-b %d\' ", spclpt
.c_ntrec
);
2330 Vprintf(stdout
, "Tape block size is %ld\n", ntrec
);
2334 * Read a block of data handling all of the messy details.
2336 static int read_a_block(int fd
, char *buf
, size_t len
, long *lengthread
)
2344 i
= rmtread(buf
, size
);
2347 i
= read(fd
, buf
, size
);
2350 break; /* EOD or error */
2353 break; /* block at a time for mt */
2356 *lengthread
= len
- size
;
2375 setmagtapein(void) {
2376 struct mtget mt_stat
;
2377 static int done
= 0;
2382 /* need to know if input is really from a tape */
2388 magtapein
= ioctl(mt
, MTIOCGET
, (char *)&mt_stat
) == 0;
2391 Vprintf(stdout
,"Input is from a %s %s\n",
2392 host
? "remote" : "local",
2393 magtapein
? "tape" :
2394 Vflag
? "multi-volume (no tape)" : "file/pipe");
2398 * Read the next block from the tape.
2399 * Check to see if it is one of several vintage headers.
2400 * If it is an old style header, convert it to a new style header.
2401 * If it is not any valid header, return an error.
2404 gethead(struct s_spcl
*buf
)
2406 readtape((char *)buf
);
2407 return converthead(buf
);
2411 converthead(struct s_spcl
*buf
)
2419 char dummy
[TP_BSIZE
];
2426 u_int16_t c_inumber
;
2431 u_int16_t odi_nlink
;
2447 if (buf
->c_magic
!= NFS_MAGIC
) {
2448 if (swabi(buf
->c_magic
) != NFS_MAGIC
)
2451 Vprintf(stdout
, "Note: Doing Byte swapping\n");
2455 if (checksum((int *)buf
) == FAIL
)
2458 swabst((u_char
*)"8i4s31i528bi192b3i", (u_char
*)buf
);
2461 memcpy(&u_ospcl
.s_ospcl
, buf
, TP_BSIZE
);
2462 if (checksum((int *)(&u_ospcl
.s_ospcl
)) == FAIL
)
2464 if (u_ospcl
.s_ospcl
.c_magic
== OFS_MAGIC
) {
2465 memset((char *)buf
, 0, (long)TP_BSIZE
);
2466 buf
->c_type
= u_ospcl
.s_ospcl
.c_type
;
2467 buf
->c_date
= u_ospcl
.s_ospcl
.c_date
;
2468 buf
->c_ddate
= u_ospcl
.s_ospcl
.c_ddate
;
2469 buf
->c_volume
= u_ospcl
.s_ospcl
.c_volume
;
2470 buf
->c_tapea
= u_ospcl
.s_ospcl
.c_tapea
;
2471 buf
->c_inumber
= u_ospcl
.s_ospcl
.c_inumber
;
2472 buf
->c_checksum
= u_ospcl
.s_ospcl
.c_checksum
;
2473 buf
->c_magic
= u_ospcl
.s_ospcl
.c_magic
;
2474 buf
->c_dinode
.di_mode
= u_ospcl
.s_ospcl
.c_dinode
.odi_mode
;
2475 buf
->c_dinode
.di_nlink
= u_ospcl
.s_ospcl
.c_dinode
.odi_nlink
;
2476 buf
->c_dinode
.di_uid
= u_ospcl
.s_ospcl
.c_dinode
.odi_uid
;
2477 buf
->c_dinode
.di_gid
= u_ospcl
.s_ospcl
.c_dinode
.odi_gid
;
2478 buf
->c_dinode
.di_size
= u_ospcl
.s_ospcl
.c_dinode
.odi_size
;
2479 buf
->c_dinode
.di_rdev
= u_ospcl
.s_ospcl
.c_dinode
.odi_rdev
;
2480 #if defined(__linux__) || defined(sunos)
2481 buf
->c_dinode
.di_atime
.tv_sec
= u_ospcl
.s_ospcl
.c_dinode
.odi_atime
;
2482 buf
->c_dinode
.di_mtime
.tv_sec
= u_ospcl
.s_ospcl
.c_dinode
.odi_mtime
;
2483 buf
->c_dinode
.di_ctime
.tv_sec
= u_ospcl
.s_ospcl
.c_dinode
.odi_ctime
;
2484 #else /* __linux__ || sunos */
2485 buf
->c_dinode
.di_atime
= u_ospcl
.s_ospcl
.c_dinode
.odi_atime
;
2486 buf
->c_dinode
.di_mtime
= u_ospcl
.s_ospcl
.c_dinode
.odi_mtime
;
2487 buf
->c_dinode
.di_ctime
= u_ospcl
.s_ospcl
.c_dinode
.odi_ctime
;
2488 #endif /* __linux__ || sunos */
2489 buf
->c_count
= u_ospcl
.s_ospcl
.c_count
;
2490 memmove(buf
->c_addr
, u_ospcl
.s_ospcl
.c_fill
, (long)256);
2492 else if (u_ospcl
.s_ospcl
.c_magic
== FS_UFS2_MAGIC
) {
2493 buf
->c_date
= (int32_t)(*(int64_t *)&u_ospcl
.dummy
[896]);
2494 buf
->c_ddate
= (int32_t)(*(int64_t *)&u_ospcl
.dummy
[904]);
2495 buf
->c_tapea
= (int32_t)(*(int64_t *)&u_ospcl
.dummy
[912]);
2496 buf
->c_firstrec
= (int32_t)(*(int64_t *)&u_ospcl
.dummy
[920]);
2498 buf
->c_extattributes
= 0;
2499 buf
->c_flags
|= DR_NEWINODEFMT
;
2504 buf
->c_magic
= NFS_MAGIC
;
2507 if ((buf
->c_dinode
.di_size
== 0 || buf
->c_dinode
.di_size
> 0xfffffff) &&
2508 (buf
->c_dinode
.di_mode
& IFMT
) == IFDIR
&& Qcvt
== 0) {
2509 qcvt
.qval
= buf
->c_dinode
.di_size
;
2510 if (qcvt
.val
[0] || qcvt
.val
[1]) {
2511 Vprintf(stdout
, "Note: Doing Quad swapping\n");
2516 qcvt
.qval
= buf
->c_dinode
.di_size
;
2518 qcvt
.val
[1] = qcvt
.val
[0];
2520 buf
->c_dinode
.di_size
= qcvt
.qval
;
2524 switch (buf
->c_type
) {
2529 * Have to patch up missing information in bit map headers
2532 buf
->c_dinode
.di_size
= buf
->c_count
* TP_BSIZE
;
2533 if (buf
->c_count
> TP_NINDIR
)
2536 for (i
= 0; i
< buf
->c_count
; i
++)
2541 if ((buf
->c_flags
& DR_NEWINODEFMT
) == 0)
2546 if (buf
->c_flags
& DR_INODEINFO
) {
2547 memcpy(volinfo
, buf
->c_inos
, TP_NINOS
* sizeof(dump_ino_t
));
2549 swabst((u_char
*)"128i", (u_char
*)volinfo
);
2558 panic("gethead: unknown inode type %d\n", buf
->c_type
);
2562 * If we are restoring a filesystem with old format inodes,
2563 * copy the uid/gid to the new location.
2566 buf
->c_dinode
.di_uid
= buf
->c_dinode
.di_ouid
;
2567 buf
->c_dinode
.di_gid
= buf
->c_dinode
.di_ogid
;
2575 converttapebuf(struct tapebuf
*tpb
)
2579 unsigned int length
:28;
2580 unsigned int flags
:3;
2581 unsigned int compressed
:1;
2583 swabst((u_char
*)"i", (u_char
*)tpb
);
2584 memcpy(&tb
, tpb
, 4);
2585 tpb
->length
= tb
.length
;
2586 tpb
->flags
= tb
.flags
;
2587 tpb
->compressed
= tb
.compressed
;
2592 * Check that a header is where it belongs and predict the next header
2595 accthdr(struct s_spcl
*header
)
2597 static dump_ino_t previno
= 0x7fffffff;
2598 static int prevtype
;
2599 static long predict
;
2602 if (header
->c_type
== TS_TAPE
) {
2603 fprintf(stderr
, "Volume header (%s inode format) ",
2604 oldinofmt
? "old" : "new");
2605 if (header
->c_firstrec
)
2606 fprintf(stderr
, "begins with record %d",
2607 header
->c_firstrec
);
2608 fprintf(stderr
, "\n");
2609 previno
= 0x7fffffff;
2612 if (previno
== 0x7fffffff)
2616 fprintf(stderr
, "Dumped inodes map header");
2619 fprintf(stderr
, "Used inodes map header");
2622 fprintf(stderr
, "File header, ino %lu", (unsigned long)previno
);
2625 fprintf(stderr
, "File continuation header, ino %ld", (long)previno
);
2628 fprintf(stderr
, "End of tape header");
2631 if (predict
!= blksread
- 1)
2632 fprintf(stderr
, "; predicted %ld blocks, got %ld blocks",
2633 predict
, blksread
- 1);
2634 fprintf(stderr
, "\n");
2637 if (header
->c_type
!= TS_END
)
2638 for (i
= 0; i
< header
->c_count
; i
++)
2639 if (readmapflag
|| header
->c_addr
[i
] != 0)
2643 prevtype
= header
->c_type
;
2644 previno
= header
->c_inumber
;
2648 * Find an inode header.
2649 * Complain if had to skip, and complain is set.
2652 findinode(struct s_spcl
*header
)
2654 static long skipcnt
= 0;
2658 curfile
.name
= "<name unknown>";
2659 curfile
.action
= UNKNOWN
;
2663 if (header
->c_magic
!= NFS_MAGIC
) {
2665 while (gethead(header
) == FAIL
||
2666 header
->c_date
!= dumpdate
)
2669 switch (header
->c_type
) {
2673 * Skip up to the beginning of the next record
2675 for (i
= 0; i
< header
->c_count
; i
++)
2676 if (header
->c_addr
[i
])
2678 while (gethead(header
) == FAIL
||
2679 header
->c_date
!= dumpdate
)
2684 curfile
.dip
= &header
->c_dinode
;
2685 curfile
.ino
= header
->c_inumber
;
2689 curfile
.ino
= maxino
;
2693 curfile
.name
= "<file removal list>";
2697 curfile
.name
= "<file dump list>";
2701 panic("unexpected tape header\n");
2705 panic("unknown tape header type %d\n", spcl
.c_type
);
2709 } while (header
->c_type
== TS_ADDR
);
2714 fprintf(stderr
, "resync restore, skipped %ld blocks\n",
2724 j
= sizeof(union u_spcl
) / sizeof(int);
2731 /* What happens if we want to read restore tapes
2732 for a 16bit int machine??? */
2738 if (i
!= CHECKSUM
) {
2739 fprintf(stderr
, "Checksum error %o, inode %lu file %s\n", i
,
2740 (unsigned long)curfile
.ino
, curfile
.name
);
2750 #include <varargs.h>
2755 msg(const char *fmt
, ...)
2768 (void)vfprintf(stderr
, fmt
, ap
);
2771 #endif /* RRESTORE */
2774 swab16(u_char
*sp
, int n
)
2779 c
= sp
[0]; sp
[0] = sp
[1]; sp
[1] = c
;
2786 swab32(u_char
*sp
, int n
)
2791 c
= sp
[0]; sp
[0] = sp
[3]; sp
[3] = c
;
2792 c
= sp
[1]; sp
[1] = sp
[2]; sp
[2] = c
;
2799 swab64(u_char
*sp
, int n
)
2804 c
= sp
[0]; sp
[0] = sp
[7]; sp
[7] = c
;
2805 c
= sp
[1]; sp
[1] = sp
[6]; sp
[6] = c
;
2806 c
= sp
[2]; sp
[2] = sp
[5]; sp
[5] = c
;
2807 c
= sp
[3]; sp
[3] = sp
[4]; sp
[4] = c
;
2814 swabst(u_char
*cp
, u_char
*sp
)
2820 case '0': case '1': case '2': case '3': case '4':
2821 case '5': case '6': case '7': case '8': case '9':
2822 n
= (n
* 10) + (*cp
++ - '0');
2825 case 's': case 'w': case 'h':
2843 default: /* Any other character, like 'b' counts as byte. */
2857 swabst((u_char
*)"i", (u_char
*)&x
);
2865 swabst((u_char
*)"l", (u_char
*)&x
);
2871 RequestVol(long tnum
)
2882 int uscsi_flags
; /* read, write, etc. see below */
2883 short uscsi_status
; /* resulting status */
2884 short uscsi_timeout
; /* Command Timeout */
2885 caddr_t uscsi_cdb
; /* cdb to send to target */
2886 caddr_t uscsi_bufaddr
; /* i/o source/destination */
2887 u_int uscsi_buflen
; /* size of i/o to take place */
2888 u_int uscsi_resid
; /* resid from i/o operation */
2889 u_char uscsi_cdblen
; /* # of valid cdb bytes */
2890 u_char uscsi_rqlen
; /* size of uscsi_rqbuf */
2891 u_char uscsi_rqstatus
; /* status of request sense cmd */
2892 u_char uscsi_rqresid
; /* resid of request sense cmd */
2893 caddr_t uscsi_rqbuf
; /* request sense buffer */
2894 void *uscsi_reserved_5
; /* Reserved for Future Use */
2897 #define CDB_GROUP0 6 /* 6-byte cdb's */
2898 #define CDB_GROUP1 10 /* 10-byte cdb's */
2899 #define CDB_GROUP2 10 /* 10-byte cdb's */
2900 #define CDB_GROUP3 0 /* reserved */
2901 #define CDB_GROUP4 16 /* 16-byte cdb's */
2902 #define CDB_GROUP5 12 /* 12-byte cdb's */
2903 #define CDB_GROUP6 0 /* reserved */
2904 #define CDB_GROUP7 0 /* reserved */
2906 #define USCSI_WRITE 0x00000 /* send data to device */
2907 #define USCSI_SILENT 0x00001 /* no error messages */
2908 #define USCSI_DIAGNOSE 0x00002 /* fail if any error occurs */
2909 #define USCSI_ISOLATE 0x00004 /* isolate from normal commands */
2910 #define USCSI_READ 0x00008 /* get data from device */
2911 #define USCSI_RESET 0x04000 /* Reset target */
2912 #define USCSI_RESET_ALL 0x08000 /* Reset all targets */
2913 #define USCSI_RQENABLE 0x10000 /* Enable Request Sense extensions */
2915 #define USCSIIOC (0x04 << 8)
2916 #define USCSICMD (USCSIIOC|201) /* user scsi command */
2918 #define USCSI_TIMEOUT 30
2919 #define USCSI_SHORT_TIMEOUT 900
2920 #define USCSI_LONG_TIMEOUT 14000
2922 #define B(s,i) ((unsigned char)((s) >> i))
2923 #define B1(s) ((unsigned char)(s))
2925 #define MSB4(s,v) *(s)=B(v,24),(s)[1]=B(v,16), (s)[2]=B(v,8), (s)[3]=B1(v)
2929 GetTapePos(long long *pos
)
2932 struct uscsi_cmd scmd
;
2937 (void)memset((void *)buf
, 0, sizeof(buf
));
2938 (void)memset((void *)&scmd
, 0, sizeof(scmd
));
2939 scmd
.uscsi_flags
= USCSI_READ
|USCSI_SILENT
;
2940 scmd
.uscsi_timeout
= USCSI_TIMEOUT
;
2941 scmd
.uscsi_cdb
= buf
;
2942 scmd
.uscsi_cdblen
= CDB_GROUP1
;
2943 buf
[0] = 0x34; /* read position */
2945 (void)memset((void *)parm
, 0, 512);
2946 scmd
.uscsi_bufaddr
= parm
;
2947 scmd
.uscsi_buflen
= 56;
2948 if (ioctl(fdsmtc
, USCSICMD
, &scmd
) == -1) {
2952 (void)memcpy(&lpos
, &parm
[4], sizeof(long));
2958 GotoTapePos(long long pos
)
2961 struct uscsi_cmd scmd
;
2964 long lpos
= (long)pos
;
2966 (void)memset((void *)buf
, 0, sizeof(buf
));
2967 (void)memset((void *)&scmd
, 0, sizeof(scmd
));
2968 scmd
.uscsi_flags
= USCSI_WRITE
|USCSI_SILENT
;
2969 scmd
.uscsi_timeout
= 360; /* 5 Minutes */
2970 scmd
.uscsi_cdb
= buf
;
2971 scmd
.uscsi_cdblen
= CDB_GROUP1
;
2972 buf
[0] = 0x2b; /* locate */
2974 MSB4(&buf
[3], lpos
);
2975 (void)memset((void *)parm
, 0, 512);
2976 scmd
.uscsi_bufaddr
= NULL
;
2977 scmd
.uscsi_buflen
= 0;
2978 if (ioctl(fdsmtc
, USCSICMD
, &scmd
) == -1) {
2986 #define LSEEK_GET_TAPEPOS 10
2987 #define LSEEK_GO2_TAPEPOS 11
2990 typedef struct mt_pos
{
2993 } MTPosRec
, *MTPosPtr
;
2997 * get the current position of the tape
3000 GetTapePos(long long *pos
)
3006 *pos
= (long long) rmtseek((OFF_T
)0, (int)LSEEK_GET_TAPEPOS
);
3015 err
= (ioctl(mt
, MTIOCPOS
, &mtpos
) < 0);
3016 *pos
= (long long)mtpos
;
3019 *pos
= LSEEK(mt
, 0, SEEK_CUR
);
3025 fprintf(stdout
, "[%ld] error: %d (getting tapepos: %lld)\n",
3026 (unsigned long)getpid(), err
, *pos
);
3033 * go to specified position on tape
3036 GotoTapePos(long long pos
)
3042 err
= (rmtseek((OFF_T
)pos
, (int)LSEEK_GO2_TAPEPOS
) < 0);
3049 buf
.mt_count
= (int) pos
;
3050 err
= (ioctl(mt
, MTIOCTOP
, &buf
) < 0);
3053 pos
= LSEEK(mt
, pos
, SEEK_SET
);
3059 fprintf(stdout
, "[%ld] error: %d (setting tapepos: %lld)\n",
3060 (unsigned long)getpid(), err
, pos
);
3065 #endif /* __linux__ */
3068 * read next data from tape to re-sync
3071 ReReadFromTape(void)
3075 if (gethead(&spcl
) == FAIL
) {
3077 fprintf(stdout
, "DEBUG 1 gethead failed\n");
3085 ReReadInodeFromTape(dump_ino_t theino
)
3094 } while (!(spcl
.c_inumber
== theino
&& spcl
.c_type
== TS_INODE
&& spcl
.c_date
== dumpdate
));
3096 fprintf(stderr
, "DEBUG: %ld reads\n", cntloop
);
3097 fprintf(stderr
, "DEBUG: bufsize %ld\n", bufsize
);
3098 fprintf(stderr
, "DEBUG: ntrec %ld\n", ntrec
);
3099 fprintf(stderr
, "DEBUG: %ld reads\n", cntloop
);
3107 OpenSMTCmt(char *themagtape
)
3109 if (GetSCSIIDFromPath(themagtape
, &scsiid
)) {
3110 fprintf(stderr
, "can't get SCSI-ID for %s\n", themagtape
);
3114 fprintf(stderr
, "can't get SCSI-ID for %s\n", themagtape
);
3117 sprintf(smtcpath
, "/dev/rsmtc%ld,0", scsiid
);
3118 if ((fdsmtc
= open(smtcpath
, O_RDWR
)) == -1) {
3119 fprintf(stderr
, "can't open smtc device: %s, %d\n", smtcpath
, errno
);
3125 #endif /* USE_QFA */