]>
git.wh0rd.org - dump.git/blob - restore/tape.c
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 1.81 2004/05/25 10:39:31 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 errx(1, "symbolic link name: %s->%s%s; too long %d",
1322 curfile
.name
, lnkbuf
, buf
, pathlen
);
1323 (void) strcat(lnkbuf
, buf
);
1327 * Skip over a hole in a symbolic link (should never happen).
1331 xtrlnkskip(UNUSED(char *buf
), UNUSED(size_t size
))
1334 errx(1, "unallocated block in symbolic link %s", curfile
.name
);
1338 * Collect the next block of a bit map.
1341 xtrmap(char *buf
, size_t size
)
1344 memmove(map
, buf
, size
);
1349 * Skip over a hole in a bit map (should never happen).
1353 xtrmapskip(UNUSED(char *buf
), size_t size
)
1356 panic("hole in map\n");
1361 * Noop, when an extraction function is not needed.
1365 xtrnull(UNUSED(char *buf
), UNUSED(size_t size
))
1371 #if COMPARE_ONTHEFLY
1373 * Compare the next block of a file.
1376 xtrcmpfile(char *buf
, size_t size
)
1378 static char cmpbuf
[MAXBSIZE
];
1383 if (read(ifile
, cmpbuf
, size
) != (ssize_t
)size
) {
1384 fprintf(stderr
, "%s: size has changed.\n",
1390 if (memcmp(buf
, cmpbuf
, size
) != 0) {
1391 fprintf(stderr
, "%s: tape and disk copies are different\n",
1399 * Skip over a hole in a file.
1402 xtrcmpskip(UNUSED(char *buf
), size_t size
)
1404 static char cmpbuf
[MAXBSIZE
];
1410 if (read(ifile
, cmpbuf
, size
) != (ssize_t
)size
) {
1411 fprintf(stderr
, "%s: size has changed.\n",
1417 for (i
= 0; i
< (int)size
; ++i
)
1418 if (cmpbuf
[i
] != '\0') {
1419 fprintf(stderr
, "%s: tape and disk copies are different\n",
1425 #endif /* COMPARE_ONTHEFLY */
1427 #if !COMPARE_ONTHEFLY
1429 do_cmpfiles(int fd_tape
, int fd_disk
, long size
)
1431 static char buf_tape
[BUFSIZ
];
1432 static char buf_disk
[BUFSIZ
];
1437 if ((n_tape
= read(fd_tape
, buf_tape
, sizeof(buf_tape
))) < 1) {
1438 close(fd_tape
), close(fd_disk
);
1439 panic("do_cmpfiles: unexpected EOF[1]");
1441 if ((n_disk
= read(fd_disk
, buf_disk
, sizeof(buf_tape
))) < 1) {
1442 close(fd_tape
), close(fd_disk
);
1443 panic("do_cmpfiles: unexpected EOF[2]");
1445 if (n_tape
!= n_disk
) {
1446 close(fd_tape
), close(fd_disk
);
1447 panic("do_cmpfiles: sizes different!");
1449 if (memcmp(buf_tape
, buf_disk
, (size_t)n_tape
) != 0) return (1);
1455 /* for debugging compare problems */
1456 #undef COMPARE_FAIL_KEEP_FILE
1459 #ifdef COMPARE_FAIL_KEEP_FILE
1460 /* return true if tapefile should be unlinked after compare */
1465 cmpfiles(char *tapefile
, char *diskfile
, struct STAT
*sbuf_disk
)
1467 struct STAT sbuf_tape
;
1468 int fd_tape
, fd_disk
;
1470 if (STAT(tapefile
, &sbuf_tape
) != 0) {
1471 panic("Can't lstat tmp file %s: %s\n", tapefile
,
1476 if (sbuf_disk
->st_size
!= sbuf_tape
.st_size
) {
1478 "%s: size changed from %ld to %ld.\n",
1479 diskfile
, (long)sbuf_tape
.st_size
, (long)sbuf_disk
->st_size
);
1481 #ifdef COMPARE_FAIL_KEEP_FILE
1488 if ((fd_tape
= OPEN(tapefile
, O_RDONLY
)) < 0) {
1489 panic("Can't open %s: %s\n", tapefile
, strerror(errno
));
1492 if ((fd_disk
= OPEN(diskfile
, O_RDONLY
)) < 0) {
1494 panic("Can't open %s: %s\n", diskfile
, strerror(errno
));
1498 if (do_cmpfiles(fd_tape
, fd_disk
, sbuf_tape
.st_size
)) {
1499 fprintf(stderr
, "%s: tape and disk copies are different\n",
1504 #ifdef COMPARE_FAIL_KEEP_FILE
1505 /* rename the file to live in /tmp */
1506 /* rename `tapefile' to /tmp/<basename of diskfile> */
1508 char *p
= strrchr(diskfile
, '/');
1509 char newname
[MAXPATHLEN
];
1511 panic("can't find / in %s\n", diskfile
);
1513 snprintf(newname
, sizeof(newname
), "%s/debug/%s", tmpdir
, p
+ 1);
1514 if (rename(tapefile
, newname
)) {
1515 panic("rename from %s to %s failed: %s\n",
1519 fprintf(stderr
, "*** %s saved to %s\n",
1524 /* don't unlink the file (it's not there anymore */
1533 #ifdef COMPARE_FAIL_KEEP_FILE
1537 #endif /* !COMPARE_ONTHEFLY */
1539 #if !COMPARE_ONTHEFLY
1540 static char tmpfilename
[MAXPATHLEN
];
1544 comparefile(char *name
)
1549 #if !COMPARE_ONTHEFLY
1550 static char *tmpfile
= NULL
;
1554 curfile
.name
= name
;
1555 curfile
.action
= USING
;
1556 mode
= curfile
.dip
->di_mode
;
1558 if ((mode
& IFMT
) == IFSOCK
) {
1559 Vprintf(stdout
, "skipped socket %s\n", name
);
1564 if ((r
= LSTAT(name
, &sb
)) != 0) {
1565 warn("%s: does not exist (%d)", name
, r
);
1571 Vprintf(stdout
, "comparing %s (size: %ld, mode: 0%o)\n", name
,
1572 (long)sb
.st_size
, mode
);
1574 if (sb
.st_mode
!= mode
) {
1575 fprintf(stderr
, "%s: mode changed from 0%o to 0%o.\n",
1576 name
, mode
& 07777, sb
.st_mode
& 07777);
1579 if (spcl
.c_flags
& DR_METAONLY
) {
1583 switch (mode
& IFMT
) {
1597 char lbuf
[MAXPATHLEN
+ 1];
1600 if (!(sb
.st_mode
& S_IFLNK
)) {
1601 fprintf(stderr
, "%s: is no longer a symbolic link\n",
1608 getfile(xtrlnkfile
, xtrlnkskip
);
1611 "%s: zero length symbolic link (ignored)\n",
1616 if ((lsize
= readlink(name
, lbuf
, MAXPATHLEN
)) < 0) {
1617 panic("readlink of %s failed: %s", name
,
1622 if (strcmp(lbuf
, lnkbuf
) != 0) {
1624 "%s: symbolic link changed from %s to %s.\n",
1625 name
, lnkbuf
, lbuf
);
1634 if (!(sb
.st_mode
& (S_IFCHR
|S_IFBLK
))) {
1635 fprintf(stderr
, "%s: no longer a special file\n",
1642 if (sb
.st_rdev
!= (dev_t
)curfile
.dip
->di_rdev
) {
1644 "%s: device changed from %d,%d to %d,%d.\n",
1646 major(curfile
.dip
->di_rdev
),
1647 minor(curfile
.dip
->di_rdev
),
1656 #if COMPARE_ONTHEFLY
1657 if ((ifile
= OPEN(name
, O_RDONLY
)) < 0) {
1658 panic("Can't open %s: %s\n", name
, strerror(errno
));
1664 getfile(xtrcmpfile
, xtrcmpskip
);
1667 if (read(ifile
, &c
, 1) != 0) {
1668 fprintf(stderr
, "%s: size has changed.\n",
1678 if (tmpfile
== NULL
) {
1679 /* argument to mktemp() must not be in RO space: */
1680 snprintf(tmpfilename
, sizeof(tmpfilename
), "%s/restoreCXXXXXX", tmpdir
);
1681 tmpfile
= mktemp(&tmpfilename
[0]);
1683 if ((STAT(tmpfile
, &stemp
) == 0) && (unlink(tmpfile
) != 0)) {
1684 panic("cannot delete tmp file %s: %s\n",
1685 tmpfile
, strerror(errno
));
1687 if ((ofile
= OPEN(tmpfile
, O_WRONLY
| O_CREAT
| O_TRUNC
, 0600)) < 0) {
1688 panic("cannot create file temp file %s: %s\n",
1689 name
, strerror(errno
));
1691 getfile(xtrfile
, xtrskip
);
1692 (void) close(ofile
);
1693 #ifdef COMPARE_FAIL_KEEP_FILE
1694 if (cmpfiles(tmpfile
, name
, &sb
))
1697 cmpfiles(tmpfile
, name
, &sb
);
1700 #endif /* COMPARE_ONTHEFLY */
1706 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
1707 static void (*readtape_func
)(char *) = readtape_set
;
1710 * Read TP_BSIZE blocks from the input.
1711 * Handle read errors, and end of media.
1712 * Decompress compressed blocks.
1717 (*readtape_func
)(buf
); /* call the actual processing routine */
1721 * Set function pointer for readtape() routine. zflag and magtapein must
1722 * be correctly set before the first call to readtape().
1725 readtape_set(char *buf
)
1728 readtape_func
= readtape_uncompr
;
1732 readtape_func
= readtape_comprtape
;
1734 readtape_func
= readtape_comprfile
;
1739 #endif /* HAVE_ZLIB || HAVE_BZLIB || HAVE_LZO */
1742 * This is the original readtape(), it's used for reading uncompressed input.
1743 * Read TP_BSIZE blocks from the input.
1744 * Handle read errors, and end of media.
1747 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
1748 readtape_uncompr(char *buf
)
1753 ssize_t rd
, newvol
, i
;
1754 int cnt
, seek_failed
;
1756 if (blkcnt
< numtrec
) {
1757 memmove(buf
, &tbufptr
[(blkcnt
++ * TP_BSIZE
)], TP_BSIZE
);
1763 for (i
= 0; i
< ntrec
; i
++)
1764 ((struct s_spcl
*)&tapebuf
[i
* TP_BSIZE
])->c_magic
= 0;
1767 cnt
= ntrec
* TP_BSIZE
;
1770 if (createtapeposflag
)
1771 (void)GetTapePos(&curtapepos
);
1776 i
= rmtread(&tapebuf
[rd
], cnt
);
1779 i
= read(mt
, &tapebuf
[rd
], cnt
);
1782 * Check for mid-tape short read error.
1783 * If found, skip rest of buffer and start with the next.
1785 if (!pipein
&& numtrec
< ntrec
&& i
> 0) {
1786 Dprintf(stdout
, "mid-media short read error.\n");
1790 * Handle partial block read.
1792 if (pipein
&& i
== 0 && rd
> 0)
1794 else if (i
> 0 && i
!= ntrec
* TP_BSIZE
) {
1803 * Short read. Process the blocks read.
1805 if (i
% TP_BSIZE
!= 0)
1807 "partial block read: %ld should be %ld\n",
1808 (long)i
, ntrec
* TP_BSIZE
);
1809 numtrec
= i
/ TP_BSIZE
;
1813 * Handle read error.
1816 fprintf(stderr
, "Tape read error while ");
1817 switch (curfile
.action
) {
1819 fprintf(stderr
, "trying to set up tape\n");
1822 fprintf(stderr
, "trying to resynchronize\n");
1825 fprintf(stderr
, "restoring %s\n", curfile
.name
);
1828 fprintf(stderr
, "skipping over inode %lu\n",
1829 (unsigned long)curfile
.ino
);
1832 if (!yflag
&& !reply("continue"))
1834 i
= ntrec
* TP_BSIZE
;
1835 memset(tapebuf
, 0, (size_t)i
);
1838 seek_failed
= (rmtseek(i
, 1) < 0);
1841 seek_failed
= (LSEEK(mt
, i
, SEEK_CUR
) == (OFF_T
)-1);
1844 warn("continuation failed");
1845 if (!yflag
&& !reply("assume end-of-tape and continue"))
1851 * Handle end of tape.
1854 Vprintf(stdout
, "End-of-tape encountered\n");
1863 if (rd
% TP_BSIZE
!= 0)
1864 panic("partial block read: %d should be %d\n",
1865 rd
, ntrec
* TP_BSIZE
);
1867 memmove(&tapebuf
[rd
], &endoftapemark
, TP_BSIZE
);
1870 memmove(buf
, &tbufptr
[(blkcnt
++ * TP_BSIZE
)], TP_BSIZE
);
1875 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
1878 * Read a compressed format block from a file or pipe and uncompress it.
1879 * Attempt to handle read errors, and end of file.
1882 readtape_comprfile(char *buf
)
1884 long rl
, size
, i
, ret
;
1886 struct tapebuf
*tpb
;
1888 if (blkcnt
< numtrec
) {
1889 memmove(buf
, &tbufptr
[(blkcnt
++ * TP_BSIZE
)], TP_BSIZE
);
1894 /* need to read the next block */
1896 for (i
= 0; i
< ntrec
; i
++)
1897 ((struct s_spcl
*)&tapebuf
[i
* TP_BSIZE
])->c_magic
= 0;
1899 tpb
= (struct tapebuf
*) tapebuf
;
1901 /* read the block prefix */
1902 ret
= read_a_block(mt
, tapebuf
, PREFIXSIZE
, &rl
);
1903 converttapebuf(tpb
);
1905 if (Vflag
&& (ret
== 0 || rl
< (int)PREFIXSIZE
|| tpb
->length
== 0))
1912 if (size
> bufsize
) {
1913 /* something's wrong */
1914 Vprintf(stdout
, "Prefix size error, max size %d, got %ld\n",
1917 tpb
->length
= bufsize
;
1919 ret
= read_a_block(mt
, tpb
->buf
, size
, &rl
);
1923 tbufptr
= decompress_tapebuf(tpb
, rl
+ PREFIXSIZE
);
1924 if (tbufptr
== NULL
) {
1925 msg_read_error("File decompression error while");
1926 if (!yflag
&& !reply("continue"))
1928 memset(tapebuf
, 0, bufsize
);
1933 memmove(buf
, &tbufptr
[(blkcnt
++ * TP_BSIZE
)], TP_BSIZE
);
1939 /* Errors while reading from a file or pipe are catastrophic. Since
1940 * there are no block boundaries, it's impossible to bypass the
1941 * block in error and find the start of the next block.
1944 /* It's possible to have multiple input files using -M
1945 * and -f file1,file2...
1947 Vprintf(stdout
, "End-of-File encountered\n");
1957 msg_read_error("Read error while");
1958 /* if (!yflag && !reply("continue")) */
1963 * Read compressed data from a tape and uncompress it.
1964 * Handle read errors, and end of media.
1965 * Since a tape consists of separate physical blocks, we try
1966 * to recover from errors by repositioning the tape to the next
1970 readtape_comprtape(char *buf
)
1974 struct tapebuf
*tpb
;
1977 if (blkcnt
< numtrec
) {
1978 memmove(buf
, &tbufptr
[(blkcnt
++ * TP_BSIZE
)], TP_BSIZE
);
1983 /* need to read the next block */
1985 for (i
= 0; i
< ntrec
; i
++)
1986 ((struct s_spcl
*)&tapebuf
[i
* TP_BSIZE
])->c_magic
= 0;
1988 tpb
= (struct tapebuf
*) tapebuf
;
1990 /* read the block */
1991 size
= bufsize
+ PREFIXSIZE
;
1992 ret
= read_a_block(mt
, tapebuf
, size
, &rl
);
1996 converttapebuf(tpb
);
1997 tbufptr
= decompress_tapebuf(tpb
, rl
);
1998 if (tbufptr
== NULL
) {
1999 msg_read_error("Tape decompression error while");
2000 if (!yflag
&& !reply("continue"))
2002 memset(tapebuf
, 0, PREFIXSIZE
+ bufsize
);
2008 /* Handle errors: EOT switches to the next volume, other errors
2009 * attempt to position the tape to the next block.
2012 Vprintf(stdout
, "End-of-tape encountered\n");
2021 msg_read_error("Tape read error while");
2022 if (!yflag
&& !reply("continue"))
2024 memset(tapebuf
, 0, PREFIXSIZE
+ bufsize
);
2029 rl
= rmtioctl(MTFSR
, 1);
2035 rl
= ioctl(mt
, MTIOCTOP
, &tcom
);
2039 warn("continuation failed");
2040 if (!yflag
&& !reply("assume end-of-tape and continue"))
2042 ret
= 0; /* end of tape */
2048 memmove(buf
, &tbufptr
[(blkcnt
++ * TP_BSIZE
)], TP_BSIZE
);
2054 * Decompress a struct tapebuf into a buffer. readsize is the size read
2055 * from the tape/file and is used for error messages. Returns a pointer
2056 * to the location of the uncompressed buffer or NULL on errors.
2057 * Adjust numtrec and complain for a short block.
2060 decompress_tapebuf(struct tapebuf
*tpbin
, int readsize
)
2062 /* If zflag is on, all blocks have a struct tapebuf prefix */
2063 /* zflag gets set in setup() from the dump header */
2064 int cresult
, blocklen
;
2065 unsigned long worklen
;
2066 char *output
= NULL
,*reason
= NULL
, *lengtherr
= NULL
;
2068 /* build a length error message */
2069 blocklen
= tpbin
->length
;
2070 if (readsize
< blocklen
+ (int)PREFIXSIZE
)
2071 lengtherr
= "short";
2073 if (readsize
> blocklen
+ (int)PREFIXSIZE
)
2078 if (tpbin
->compressed
) {
2079 /* uncompress whatever we read, if it fails, complain later */
2080 if (tpbin
->flags
== COMPRESS_ZLIB
) {
2082 errx(1,"This restore version doesn't support zlib decompression");
2084 cresult
= uncompress(comprbuf
, &worklen
,
2085 tpbin
->buf
, blocklen
);
2091 reason
= "not enough memory";
2094 reason
= "buffer too small";
2097 reason
= "data error";
2102 if (cresult
== Z_OK
)
2106 #endif /* HAVE_ZLIB */
2108 if (tpbin
->flags
== COMPRESS_BZLIB
) {
2110 errx(1,"This restore version doesn't support bzlib decompression");
2112 unsigned int worklen2
= worklen
;
2113 cresult
= BZ2_bzBuffToBuffDecompress(
2114 comprbuf
, &worklen2
,
2115 tpbin
->buf
, blocklen
, 0, 0);
2122 reason
= "not enough memory";
2124 case BZ_OUTBUFF_FULL
:
2125 reason
= "buffer too small";
2128 case BZ_DATA_ERROR_MAGIC
:
2129 case BZ_UNEXPECTED_EOF
:
2130 reason
= "data error";
2135 if (cresult
== BZ_OK
)
2139 #endif /* HAVE_BZLIB */
2141 if (tpbin
->flags
== COMPRESS_LZO
) {
2143 errx(1,"This restore version doesn't support lzo decompression");
2145 lzo_uint worklen2
= worklen
;
2146 cresult
= lzo1x_decompress(tpbin
->buf
, blocklen
,
2147 comprbuf
, &worklen2
, NULL
);
2154 case LZO_E_EOF_NOT_FOUND
:
2155 reason
= "data error";
2160 if (cresult
== LZO_E_OK
)
2164 #endif /* HAVE_LZO */
2168 output
= tpbin
->buf
;
2172 numtrec
= worklen
/ TP_BSIZE
;
2173 if (worklen
% TP_BSIZE
!= 0)
2174 reason
= "length mismatch";
2178 fprintf(stderr
, "%s compressed block: %d expected: %u\n",
2179 lengtherr
, readsize
, tpbin
->length
+ PREFIXSIZE
);
2180 fprintf(stderr
, "decompression error, block %ld: %s\n",
2181 tpblksread
+1, reason
);
2189 * Print an error message for a read error.
2190 * This was exteracted from the original readtape().
2193 msg_read_error(char *m
)
2195 switch (curfile
.action
) {
2197 fprintf(stderr
, "%s trying to set up tape\n", m
);
2200 fprintf(stderr
, "%s trying to resynchronize\n", m
);
2203 fprintf(stderr
, "%s restoring %s\n", m
, curfile
.name
);
2206 fprintf(stderr
, "%s skipping over inode %lu\n", m
,
2207 (unsigned long)curfile
.ino
);
2211 #endif /* HAVE_ZLIB || HAVE_BZLIB || HAVE_LZO */
2214 * Read the first block and get the blocksize from it. Test
2215 * for a compressed dump tape/file. setup() will make the final
2216 * determination by checking the compressed flag if gethead()
2217 * finds a valid header. The test here is necessary to offset the buffer
2218 * by the size of the compressed prefix. zflag is set here so that
2219 * readtape_set can set the correct function pointer for readtape().
2220 * Note that the first block of each tape/file is not compressed
2221 * and does not have a prefix.
2224 findtapeblksize(void)
2228 struct tapebuf
*tpb
= (struct tapebuf
*) tapebuf
;
2229 struct s_spcl spclpt
;
2231 for (i
= 0; i
< ntrec
; i
++)
2232 ((struct s_spcl
*)&tapebuf
[i
* TP_BSIZE
])->c_magic
= 0;
2236 * For a pipe or file, read in the first record. For a tape, read
2239 len
= magtapein
? ntrec
* TP_BSIZE
: TP_BSIZE
;
2241 if (read_a_block(mt
, tapebuf
, len
, &i
) <= 0)
2242 errx(1, "Tape read error on first record");
2244 memcpy(&spclpt
, tapebuf
, TP_BSIZE
);
2245 if (converthead(&spclpt
) == FAIL
) {
2247 if (converthead(&spclpt
) == FAIL
) {
2248 /* Special case for old compressed tapes with prefix */
2249 if (magtapein
&& (i
% TP_BSIZE
!= 0))
2251 errx(1, "Tape is not a dump tape");
2253 fprintf(stderr
, "Converting to new file system format.\n");
2256 * If the input is from a file or a pipe, we read TP_BSIZE
2257 * bytes looking for a dump header. If the dump is compressed
2258 * we need to read in the rest of the block, as determined
2259 * by c_ntrec in the dump header. The first block of the
2260 * dump is not compressed and does not have a prefix.
2263 if (spclpt
.c_type
== TS_TAPE
2264 && spclpt
.c_flags
& DR_COMPRESSED
) {
2265 /* It's a compressed dump file, read in the */
2266 /* rest of the block based on spclpt.c_ntrec. */
2267 if (spclpt
.c_ntrec
> ntrec
)
2268 errx(1, "Tape blocksize is too large, use "
2269 "\'-b %d\' ", spclpt
.c_ntrec
);
2270 ntrec
= spclpt
.c_ntrec
;
2271 len
= (ntrec
- 1) * TP_BSIZE
;
2275 /* read in the rest of the block based on bufsize */
2276 len
= bufsize
- TP_BSIZE
;
2278 if (read_a_block(mt
, tapebuf
+TP_BSIZE
, len
, &i
) < 0
2279 || (i
!= (long)len
&& i
% TP_BSIZE
!= 0))
2280 errx(1,"Error reading dump file header");
2283 Vprintf(stdout
, "Input block size is %ld\n", ntrec
);
2285 } /* if (!magtapein) */
2288 * If the input is a tape, we tried to read ntrec * TP_BSIZE bytes.
2289 * If the value of ntrec is too large, we read less than
2290 * what we asked for; adjust the value of ntrec and test for
2291 * a compressed dump tape.
2293 if (i
% TP_BSIZE
!= 0) {
2295 /* may be old format compressed dump tape with a prefix */
2296 memcpy(&spclpt
, tpb
->buf
, TP_BSIZE
);
2298 if (converthead(&spclpt
) == FAIL
) {
2300 if (converthead(&spclpt
) == FAIL
)
2301 errx(1, "Tape is not a dump tape");
2302 fprintf(stderr
, "Converting to new file system format.\n");
2304 if (i
% TP_BSIZE
== PREFIXSIZE
2305 && tpb
->compressed
== 0
2306 && spclpt
.c_type
== TS_TAPE
2307 && spclpt
.c_flags
& DR_COMPRESSED
) {
2310 if (tpb
->length
> bufsize
)
2311 errx(1, "Tape blocksize is too large, use "
2312 "\'-b %d\' ", tpb
->length
/ TP_BSIZE
);
2315 errx(1, "Tape block size (%ld) is not a multiple of dump block size (%d)",
2318 ntrec
= i
/ TP_BSIZE
;
2319 if (spclpt
.c_type
== TS_TAPE
) {
2320 if (spclpt
.c_flags
& DR_COMPRESSED
)
2322 if (spclpt
.c_ntrec
> ntrec
)
2323 errx(1, "Tape blocksize is too large, use "
2324 "\'-b %d\' ", spclpt
.c_ntrec
);
2327 Vprintf(stdout
, "Tape block size is %ld\n", ntrec
);
2331 * Read a block of data handling all of the messy details.
2333 static int read_a_block(int fd
, char *buf
, size_t len
, long *lengthread
)
2341 i
= rmtread(buf
, size
);
2344 i
= read(fd
, buf
, size
);
2347 break; /* EOD or error */
2350 break; /* block at a time for mt */
2353 *lengthread
= len
- size
;
2372 setmagtapein(void) {
2373 struct mtget mt_stat
;
2374 static int done
= 0;
2379 /* need to know if input is really from a tape */
2385 magtapein
= ioctl(mt
, MTIOCGET
, (char *)&mt_stat
) == 0;
2388 Vprintf(stdout
,"Input is from a %s %s\n",
2389 host
? "remote" : "local",
2390 magtapein
? "tape" :
2391 Vflag
? "multi-volume (no tape)" : "file/pipe");
2395 * Read the next block from the tape.
2396 * Check to see if it is one of several vintage headers.
2397 * If it is an old style header, convert it to a new style header.
2398 * If it is not any valid header, return an error.
2401 gethead(struct s_spcl
*buf
)
2403 readtape((char *)buf
);
2404 return converthead(buf
);
2408 converthead(struct s_spcl
*buf
)
2416 char dummy
[TP_BSIZE
];
2423 u_int16_t c_inumber
;
2428 u_int16_t odi_nlink
;
2444 if (buf
->c_magic
!= NFS_MAGIC
) {
2445 if (swabi(buf
->c_magic
) != NFS_MAGIC
)
2448 Vprintf(stdout
, "Note: Doing Byte swapping\n");
2452 if (checksum((int *)buf
) == FAIL
)
2455 swabst((u_char
*)"8i4s31i528bi192b3i", (u_char
*)buf
);
2458 memcpy(&u_ospcl
.s_ospcl
, buf
, TP_BSIZE
);
2459 if (checksum((int *)(&u_ospcl
.s_ospcl
)) == FAIL
)
2461 if (u_ospcl
.s_ospcl
.c_magic
== OFS_MAGIC
) {
2462 memset((char *)buf
, 0, (long)TP_BSIZE
);
2463 buf
->c_type
= u_ospcl
.s_ospcl
.c_type
;
2464 buf
->c_date
= u_ospcl
.s_ospcl
.c_date
;
2465 buf
->c_ddate
= u_ospcl
.s_ospcl
.c_ddate
;
2466 buf
->c_volume
= u_ospcl
.s_ospcl
.c_volume
;
2467 buf
->c_tapea
= u_ospcl
.s_ospcl
.c_tapea
;
2468 buf
->c_inumber
= u_ospcl
.s_ospcl
.c_inumber
;
2469 buf
->c_checksum
= u_ospcl
.s_ospcl
.c_checksum
;
2470 buf
->c_magic
= u_ospcl
.s_ospcl
.c_magic
;
2471 buf
->c_dinode
.di_mode
= u_ospcl
.s_ospcl
.c_dinode
.odi_mode
;
2472 buf
->c_dinode
.di_nlink
= u_ospcl
.s_ospcl
.c_dinode
.odi_nlink
;
2473 buf
->c_dinode
.di_uid
= u_ospcl
.s_ospcl
.c_dinode
.odi_uid
;
2474 buf
->c_dinode
.di_gid
= u_ospcl
.s_ospcl
.c_dinode
.odi_gid
;
2475 buf
->c_dinode
.di_size
= u_ospcl
.s_ospcl
.c_dinode
.odi_size
;
2476 buf
->c_dinode
.di_rdev
= u_ospcl
.s_ospcl
.c_dinode
.odi_rdev
;
2477 #if defined(__linux__) || defined(sunos)
2478 buf
->c_dinode
.di_atime
.tv_sec
= u_ospcl
.s_ospcl
.c_dinode
.odi_atime
;
2479 buf
->c_dinode
.di_mtime
.tv_sec
= u_ospcl
.s_ospcl
.c_dinode
.odi_mtime
;
2480 buf
->c_dinode
.di_ctime
.tv_sec
= u_ospcl
.s_ospcl
.c_dinode
.odi_ctime
;
2481 #else /* __linux__ || sunos */
2482 buf
->c_dinode
.di_atime
= u_ospcl
.s_ospcl
.c_dinode
.odi_atime
;
2483 buf
->c_dinode
.di_mtime
= u_ospcl
.s_ospcl
.c_dinode
.odi_mtime
;
2484 buf
->c_dinode
.di_ctime
= u_ospcl
.s_ospcl
.c_dinode
.odi_ctime
;
2485 #endif /* __linux__ || sunos */
2486 buf
->c_count
= u_ospcl
.s_ospcl
.c_count
;
2487 memmove(buf
->c_addr
, u_ospcl
.s_ospcl
.c_fill
, (long)256);
2489 else if (u_ospcl
.s_ospcl
.c_magic
== FS_UFS2_MAGIC
) {
2490 buf
->c_date
= (int32_t)(*(int64_t *)&u_ospcl
.dummy
[896]);
2491 buf
->c_ddate
= (int32_t)(*(int64_t *)&u_ospcl
.dummy
[904]);
2492 buf
->c_tapea
= (int32_t)(*(int64_t *)&u_ospcl
.dummy
[912]);
2493 buf
->c_firstrec
= (int32_t)(*(int64_t *)&u_ospcl
.dummy
[920]);
2495 buf
->c_extattributes
= 0;
2496 buf
->c_flags
|= DR_NEWINODEFMT
;
2501 buf
->c_magic
= NFS_MAGIC
;
2504 if ((buf
->c_dinode
.di_size
== 0 || buf
->c_dinode
.di_size
> 0xfffffff) &&
2505 (buf
->c_dinode
.di_mode
& IFMT
) == IFDIR
&& Qcvt
== 0) {
2506 qcvt
.qval
= buf
->c_dinode
.di_size
;
2507 if (qcvt
.val
[0] || qcvt
.val
[1]) {
2508 Vprintf(stdout
, "Note: Doing Quad swapping\n");
2513 qcvt
.qval
= buf
->c_dinode
.di_size
;
2515 qcvt
.val
[1] = qcvt
.val
[0];
2517 buf
->c_dinode
.di_size
= qcvt
.qval
;
2521 switch (buf
->c_type
) {
2526 * Have to patch up missing information in bit map headers
2529 buf
->c_dinode
.di_size
= buf
->c_count
* TP_BSIZE
;
2530 if (buf
->c_count
> TP_NINDIR
)
2533 for (i
= 0; i
< buf
->c_count
; i
++)
2538 if ((buf
->c_flags
& DR_NEWINODEFMT
) == 0)
2543 if (buf
->c_flags
& DR_INODEINFO
) {
2544 memcpy(volinfo
, buf
->c_inos
, TP_NINOS
* sizeof(dump_ino_t
));
2546 swabst((u_char
*)"128i", (u_char
*)volinfo
);
2555 panic("gethead: unknown inode type %d\n", buf
->c_type
);
2559 * If we are restoring a filesystem with old format inodes,
2560 * copy the uid/gid to the new location.
2563 buf
->c_dinode
.di_uid
= buf
->c_dinode
.di_ouid
;
2564 buf
->c_dinode
.di_gid
= buf
->c_dinode
.di_ogid
;
2572 converttapebuf(struct tapebuf
*tpb
)
2576 unsigned int length
:28;
2577 unsigned int flags
:3;
2578 unsigned int compressed
:1;
2580 swabst((u_char
*)"i", (u_char
*)tpb
);
2581 memcpy(&tb
, tpb
, 4);
2582 tpb
->length
= tb
.length
;
2583 tpb
->flags
= tb
.flags
;
2584 tpb
->compressed
= tb
.compressed
;
2589 * Check that a header is where it belongs and predict the next header
2592 accthdr(struct s_spcl
*header
)
2594 static dump_ino_t previno
= 0x7fffffff;
2595 static int prevtype
;
2596 static long predict
;
2599 if (header
->c_type
== TS_TAPE
) {
2600 fprintf(stderr
, "Volume header (%s inode format) ",
2601 oldinofmt
? "old" : "new");
2602 if (header
->c_firstrec
)
2603 fprintf(stderr
, "begins with record %d",
2604 header
->c_firstrec
);
2605 fprintf(stderr
, "\n");
2606 previno
= 0x7fffffff;
2609 if (previno
== 0x7fffffff)
2613 fprintf(stderr
, "Dumped inodes map header");
2616 fprintf(stderr
, "Used inodes map header");
2619 fprintf(stderr
, "File header, ino %lu", (unsigned long)previno
);
2622 fprintf(stderr
, "File continuation header, ino %ld", (long)previno
);
2625 fprintf(stderr
, "End of tape header");
2628 if (predict
!= blksread
- 1)
2629 fprintf(stderr
, "; predicted %ld blocks, got %ld blocks",
2630 predict
, blksread
- 1);
2631 fprintf(stderr
, "\n");
2634 if (header
->c_type
!= TS_END
)
2635 for (i
= 0; i
< header
->c_count
; i
++)
2636 if (readmapflag
|| header
->c_addr
[i
] != 0)
2640 prevtype
= header
->c_type
;
2641 previno
= header
->c_inumber
;
2645 * Find an inode header.
2646 * Complain if had to skip, and complain is set.
2649 findinode(struct s_spcl
*header
)
2651 static long skipcnt
= 0;
2655 curfile
.name
= "<name unknown>";
2656 curfile
.action
= UNKNOWN
;
2660 if (header
->c_magic
!= NFS_MAGIC
) {
2662 while (gethead(header
) == FAIL
||
2663 header
->c_date
!= dumpdate
)
2666 switch (header
->c_type
) {
2670 * Skip up to the beginning of the next record
2672 for (i
= 0; i
< header
->c_count
; i
++)
2673 if (header
->c_addr
[i
])
2675 while (gethead(header
) == FAIL
||
2676 header
->c_date
!= dumpdate
)
2681 curfile
.dip
= &header
->c_dinode
;
2682 curfile
.ino
= header
->c_inumber
;
2686 curfile
.ino
= maxino
;
2690 curfile
.name
= "<file removal list>";
2694 curfile
.name
= "<file dump list>";
2698 panic("unexpected tape header\n");
2702 panic("unknown tape header type %d\n", spcl
.c_type
);
2706 } while (header
->c_type
== TS_ADDR
);
2711 fprintf(stderr
, "resync restore, skipped %ld blocks\n",
2721 j
= sizeof(union u_spcl
) / sizeof(int);
2728 /* What happens if we want to read restore tapes
2729 for a 16bit int machine??? */
2735 if (i
!= CHECKSUM
) {
2736 fprintf(stderr
, "Checksum error %o, inode %lu file %s\n", i
,
2737 (unsigned long)curfile
.ino
, curfile
.name
);
2747 #include <varargs.h>
2752 msg(const char *fmt
, ...)
2765 (void)vfprintf(stderr
, fmt
, ap
);
2768 #endif /* RRESTORE */
2771 swab16(u_char
*sp
, int n
)
2776 c
= sp
[0]; sp
[0] = sp
[1]; sp
[1] = c
;
2783 swab32(u_char
*sp
, int n
)
2788 c
= sp
[0]; sp
[0] = sp
[3]; sp
[3] = c
;
2789 c
= sp
[1]; sp
[1] = sp
[2]; sp
[2] = c
;
2796 swab64(u_char
*sp
, int n
)
2801 c
= sp
[0]; sp
[0] = sp
[7]; sp
[7] = c
;
2802 c
= sp
[1]; sp
[1] = sp
[6]; sp
[6] = c
;
2803 c
= sp
[2]; sp
[2] = sp
[5]; sp
[5] = c
;
2804 c
= sp
[3]; sp
[3] = sp
[4]; sp
[4] = c
;
2811 swabst(u_char
*cp
, u_char
*sp
)
2817 case '0': case '1': case '2': case '3': case '4':
2818 case '5': case '6': case '7': case '8': case '9':
2819 n
= (n
* 10) + (*cp
++ - '0');
2822 case 's': case 'w': case 'h':
2840 default: /* Any other character, like 'b' counts as byte. */
2854 swabst((u_char
*)"i", (u_char
*)&x
);
2862 swabst((u_char
*)"l", (u_char
*)&x
);
2868 RequestVol(long tnum
)
2879 int uscsi_flags
; /* read, write, etc. see below */
2880 short uscsi_status
; /* resulting status */
2881 short uscsi_timeout
; /* Command Timeout */
2882 caddr_t uscsi_cdb
; /* cdb to send to target */
2883 caddr_t uscsi_bufaddr
; /* i/o source/destination */
2884 u_int uscsi_buflen
; /* size of i/o to take place */
2885 u_int uscsi_resid
; /* resid from i/o operation */
2886 u_char uscsi_cdblen
; /* # of valid cdb bytes */
2887 u_char uscsi_rqlen
; /* size of uscsi_rqbuf */
2888 u_char uscsi_rqstatus
; /* status of request sense cmd */
2889 u_char uscsi_rqresid
; /* resid of request sense cmd */
2890 caddr_t uscsi_rqbuf
; /* request sense buffer */
2891 void *uscsi_reserved_5
; /* Reserved for Future Use */
2894 #define CDB_GROUP0 6 /* 6-byte cdb's */
2895 #define CDB_GROUP1 10 /* 10-byte cdb's */
2896 #define CDB_GROUP2 10 /* 10-byte cdb's */
2897 #define CDB_GROUP3 0 /* reserved */
2898 #define CDB_GROUP4 16 /* 16-byte cdb's */
2899 #define CDB_GROUP5 12 /* 12-byte cdb's */
2900 #define CDB_GROUP6 0 /* reserved */
2901 #define CDB_GROUP7 0 /* reserved */
2903 #define USCSI_WRITE 0x00000 /* send data to device */
2904 #define USCSI_SILENT 0x00001 /* no error messages */
2905 #define USCSI_DIAGNOSE 0x00002 /* fail if any error occurs */
2906 #define USCSI_ISOLATE 0x00004 /* isolate from normal commands */
2907 #define USCSI_READ 0x00008 /* get data from device */
2908 #define USCSI_RESET 0x04000 /* Reset target */
2909 #define USCSI_RESET_ALL 0x08000 /* Reset all targets */
2910 #define USCSI_RQENABLE 0x10000 /* Enable Request Sense extensions */
2912 #define USCSIIOC (0x04 << 8)
2913 #define USCSICMD (USCSIIOC|201) /* user scsi command */
2915 #define USCSI_TIMEOUT 30
2916 #define USCSI_SHORT_TIMEOUT 900
2917 #define USCSI_LONG_TIMEOUT 14000
2919 #define B(s,i) ((unsigned char)((s) >> i))
2920 #define B1(s) ((unsigned char)(s))
2922 #define MSB4(s,v) *(s)=B(v,24),(s)[1]=B(v,16), (s)[2]=B(v,8), (s)[3]=B1(v)
2926 GetTapePos(long long *pos
)
2929 struct uscsi_cmd scmd
;
2934 (void)memset((void *)buf
, 0, sizeof(buf
));
2935 (void)memset((void *)&scmd
, 0, sizeof(scmd
));
2936 scmd
.uscsi_flags
= USCSI_READ
|USCSI_SILENT
;
2937 scmd
.uscsi_timeout
= USCSI_TIMEOUT
;
2938 scmd
.uscsi_cdb
= buf
;
2939 scmd
.uscsi_cdblen
= CDB_GROUP1
;
2940 buf
[0] = 0x34; /* read position */
2942 (void)memset((void *)parm
, 0, 512);
2943 scmd
.uscsi_bufaddr
= parm
;
2944 scmd
.uscsi_buflen
= 56;
2945 if (ioctl(fdsmtc
, USCSICMD
, &scmd
) == -1) {
2949 (void)memcpy(&lpos
, &parm
[4], sizeof(long));
2955 GotoTapePos(long long pos
)
2958 struct uscsi_cmd scmd
;
2961 long lpos
= (long)pos
;
2963 (void)memset((void *)buf
, 0, sizeof(buf
));
2964 (void)memset((void *)&scmd
, 0, sizeof(scmd
));
2965 scmd
.uscsi_flags
= USCSI_WRITE
|USCSI_SILENT
;
2966 scmd
.uscsi_timeout
= 360; /* 5 Minutes */
2967 scmd
.uscsi_cdb
= buf
;
2968 scmd
.uscsi_cdblen
= CDB_GROUP1
;
2969 buf
[0] = 0x2b; /* locate */
2971 MSB4(&buf
[3], lpos
);
2972 (void)memset((void *)parm
, 0, 512);
2973 scmd
.uscsi_bufaddr
= NULL
;
2974 scmd
.uscsi_buflen
= 0;
2975 if (ioctl(fdsmtc
, USCSICMD
, &scmd
) == -1) {
2983 #define LSEEK_GET_TAPEPOS 10
2984 #define LSEEK_GO2_TAPEPOS 11
2987 typedef struct mt_pos
{
2990 } MTPosRec
, *MTPosPtr
;
2994 * get the current position of the tape
2997 GetTapePos(long long *pos
)
3003 *pos
= (long long) rmtseek((OFF_T
)0, (int)LSEEK_GET_TAPEPOS
);
3012 err
= (ioctl(mt
, MTIOCPOS
, &mtpos
) < 0);
3013 *pos
= (long long)mtpos
;
3016 *pos
= LSEEK(mt
, 0, SEEK_CUR
);
3022 fprintf(stdout
, "[%ld] error: %d (getting tapepos: %lld)\n",
3023 (unsigned long)getpid(), err
, *pos
);
3030 * go to specified position on tape
3033 GotoTapePos(long long pos
)
3039 err
= (rmtseek((OFF_T
)pos
, (int)LSEEK_GO2_TAPEPOS
) < 0);
3046 buf
.mt_count
= (int) pos
;
3047 err
= (ioctl(mt
, MTIOCTOP
, &buf
) < 0);
3050 pos
= LSEEK(mt
, pos
, SEEK_SET
);
3056 fprintf(stdout
, "[%ld] error: %d (setting tapepos: %lld)\n",
3057 (unsigned long)getpid(), err
, pos
);
3062 #endif /* __linux__ */
3065 * read next data from tape to re-sync
3068 ReReadFromTape(void)
3072 if (gethead(&spcl
) == FAIL
) {
3074 fprintf(stdout
, "DEBUG 1 gethead failed\n");
3082 ReReadInodeFromTape(dump_ino_t theino
)
3091 } while (!(spcl
.c_inumber
== theino
&& spcl
.c_type
== TS_INODE
&& spcl
.c_date
== dumpdate
));
3093 fprintf(stderr
, "DEBUG: %ld reads\n", cntloop
);
3094 fprintf(stderr
, "DEBUG: bufsize %ld\n", bufsize
);
3095 fprintf(stderr
, "DEBUG: ntrec %ld\n", ntrec
);
3096 fprintf(stderr
, "DEBUG: %ld reads\n", cntloop
);
3104 OpenSMTCmt(char *themagtape
)
3106 if (GetSCSIIDFromPath(themagtape
, &scsiid
)) {
3107 fprintf(stderr
, "can't get SCSI-ID for %s\n", themagtape
);
3111 fprintf(stderr
, "can't get SCSI-ID for %s\n", themagtape
);
3114 sprintf(smtcpath
, "/dev/rsmtc%ld,0", scsiid
);
3115 if ((fdsmtc
= open(smtcpath
, O_RDWR
)) == -1) {
3116 fprintf(stderr
, "can't open smtc device: %s, %d\n", smtcpath
, errno
);
3122 #endif /* USE_QFA */