]>
git.wh0rd.org - dump.git/blob - restore/tape.c
c74e3909f10e46cf1f1ae026573f5d9cfab56bde
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 1.90 2005/06/08 13:24:11 stelian Exp $";
49 #include <compatlfs.h>
50 #include <sys/types.h>
52 #include <compaterr.h>
60 #include <sys/param.h>
68 #ifdef HAVE_EXT2FS_EXT2_FS_H
69 #include <ext2fs/ext2_fs.h>
71 #include <linux/ext2_fs.h>
73 #include <ext2fs/ext2fs.h>
74 #include <bsdcompat.h>
77 #define quad_t int64_t
79 #include <sys/fcntl.h>
80 #include <bsdcompat.h>
82 #include <ufs/ufs/dinode.h>
84 #endif /* __linux__ */
88 #include <protocols/dumprestore.h>
92 #endif /* HAVE_ZLIB */
96 #endif /* HAVE_BZLIB */
100 #endif /* HAVE_LZO */
104 #include "pathnames.h"
107 int noresyncmesg
= 0;
109 static long fssize
= MAXBSIZE
;
112 static int magtapein
= 0; /* input is from magtape */
113 static char magtape
[MAXPATHLEN
];
114 static char magtapeprefix
[MAXPATHLEN
];
117 static char *tapebuf
; /* input buffer for read */
118 static int bufsize
; /* buffer size without prefix */
119 static char *tbufptr
= NULL
; /* active tape buffer */
120 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
121 static char *comprbuf
; /* uncompress work buf */
122 static size_t comprlen
; /* size including prefix */
124 static union u_spcl endoftapemark
;
125 static long blksread
; /* blocks read since last header */
126 static long tpblksread
= 0; /* TP_BSIZE blocks read */
127 static long tapesread
;
128 static sigjmp_buf restart
;
129 static int gettingfile
= 0; /* restart has a valid frame */
134 static char lnkbuf
[MAXPATHLEN
+ 1];
137 int oldinofmt
; /* old inode format conversion required */
138 int Bcvt
; /* Swap Bytes (for CCI or sun) */
139 static int Qcvt
; /* Swap quads (for sun) */
141 #define FLUSHTAPEBUF() blkcnt = ntrec + 1
143 static void accthdr
__P((struct s_spcl
*));
144 static int checksum
__P((int *));
145 static void findinode
__P((struct s_spcl
*));
146 static void findtapeblksize
__P((void));
147 static int gethead
__P((struct s_spcl
*));
148 static int converthead
__P((struct s_spcl
*));
149 static void converttapebuf
__P((struct tapebuf
*));
150 static void readtape
__P((char *));
151 static void setdumpnum
__P((void));
153 static void xtrfilefinderinfo
__P((char *, size_t));
156 static u_int swabi
__P((u_int
));
158 static u_long swabl
__P((u_long
));
160 static u_char
*swab64
__P((u_char
*, int));
161 static u_char
*swab32
__P((u_char
*, int));
162 static u_char
*swab16
__P((u_char
*, int));
163 static void terminateinput
__P((void));
164 static void xtrfile
__P((char *, size_t));
165 static void xtrlnkfile
__P((char *, size_t));
166 static void xtrlnkskip
__P((char *, size_t));
167 static void xtrmap
__P((char *, size_t));
168 static void xtrmapskip
__P((char *, size_t));
169 static void xtrskip
__P((char *, size_t));
170 static void xtrxattr
__P((char *, size_t));
171 static void setmagtapein
__P((void));
172 static int extractattr
__P((char *));
173 static void compareattr
__P((char *));
175 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
176 static void newcomprbuf
__P((int));
177 static void (*readtape_func
) __P((char *));
178 static void readtape_set
__P((char *));
179 static void readtape_uncompr
__P((char *));
180 static void readtape_comprfile
__P((char *));
181 static void readtape_comprtape
__P((char *));
182 static char *decompress_tapebuf
__P((struct tapebuf
*, int));
183 static void msg_read_error
__P((char *));
185 static int read_a_block
__P((int, char *, size_t, long *));
186 #define PREFIXSIZE sizeof(struct tapebuf)
188 #define COMPARE_ONTHEFLY 1
191 static int ifile
; /* input file for compare */
192 static int cmperror
; /* compare error */
193 static void xtrcmpfile
__P((char *, size_t));
194 static void xtrcmpskip
__P((char *, size_t));
197 static int readmapflag
;
198 static int readingmaps
; /* set to 1 while reading the maps */
200 static char xattrbuf
[XATTR_MAXSIZE
];
204 static DumpFinderInfo gFndrInfo
;
208 * Set up an input source. This is called from main.c before setup() is.
211 setinput(char *source
)
220 newtapebuf(NTREC
> HIGHDENSITYTREC
? NTREC
: HIGHDENSITYTREC
);
224 if ((n
= strchr(source
, ':'))) {
225 for (i
= 0; i
< (n
- source
); i
++) {
226 if (source
[i
] == '/')
229 if (source
[i
] != '/') {
231 source
= strchr(host
, ':');
233 if (rmthost(host
) == 0)
238 if (strcmp(source
, "-") == 0) {
240 * Since input is coming from a pipe we must establish
241 * our own connection to the terminal.
243 terminal
= fopen(_PATH_TTY
, "r");
244 if (terminal
== NULL
) {
245 warn("cannot open %s", _PATH_TTY
);
246 terminal
= fopen(_PATH_DEVNULL
, "r");
247 if (terminal
== NULL
)
248 err(1, "cannot open %s", _PATH_DEVNULL
);
252 setuid(getuid()); /* no longer need or want root privileges */
254 strncpy(magtapeprefix
, source
, MAXPATHLEN
);
255 magtapeprefix
[MAXPATHLEN
-1] = '\0';
256 snprintf(magtape
, MAXPATHLEN
, "%s%03d", source
, 1);
259 strncpy(magtape
, source
, MAXPATHLEN
);
260 magtape
[MAXPATHLEN
- 1] = '\0';
264 newtapebuf(long size
)
266 static int tapebufsize
= -1;
269 bufsize
= ntrec
* TP_BSIZE
;
270 if (size
<= tapebufsize
)
274 tapebuf
= malloc(size
* TP_BSIZE
+ sizeof(struct tapebuf
));
276 errx(1, "Cannot allocate space for tape buffer");
280 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
282 newcomprbuf(int size
)
284 size_t buf_size
= (size
+1) * TP_BSIZE
+ sizeof(struct tapebuf
);
285 if (buf_size
<= comprlen
)
288 if (comprbuf
!= NULL
)
290 comprbuf
= malloc(comprlen
);
291 if (comprbuf
== NULL
)
292 errx(1, "Cannot allocate space for decompress buffer");
294 #endif /* HAVE_ZLIB || HAVE_BZLIB || HAVE_LZO */
297 * Verify that the tape drive can be accessed and
298 * that it actually is a dump tape.
303 int i
, j
, *ip
, bot_code
;
307 Vprintf(stdout
, "Verify tape and initialize maps\n");
308 if (Afile
== NULL
&& bot_script
) {
309 msg("Launching %s\n", bot_script
);
310 bot_code
= system_command(bot_script
, magtape
, 1);
311 if (bot_code
!= 0 && bot_code
!= 1) {
312 msg("Restore aborted by the beginning of tape script\n");
324 mt
= rmtopen(temptape
, O_RDONLY
);
330 mt
= OPEN(temptape
, O_RDONLY
, 0);
332 err(1, "%s", temptape
);
338 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
339 readtape_func
= readtape_set
;
340 #if defined(HAVE_LZO)
341 if (lzo_init() != LZO_E_OK
) {
342 msg("internal error - lzo_init failed \n");
350 if (gethead(&spcl
) == FAIL
) {
351 blkcnt
--; /* push back this block */
355 if (gethead(&spcl
) == FAIL
)
356 errx(1, "Tape is not a dump tape");
357 fprintf(stderr
, "Converting to new file system format.\n");
361 fprintf(stderr
, "Dump tape is compressed.\n");
362 #if !defined(HAVE_ZLIB) && !defined(HAVE_BZLIB) && !defined(HAVE_LZO)
363 errx(1,"This restore version doesn't support decompression");
364 #endif /* !HAVE_ZLIB && !HAVE_BZLIB */
367 endoftapemark
.s_spcl
.c_magic
= cvtflag
? OFS_MAGIC
: NFS_MAGIC
;
368 endoftapemark
.s_spcl
.c_type
= TS_END
;
369 ip
= (int *)&endoftapemark
;
370 j
= sizeof(union u_spcl
) / sizeof(int);
375 endoftapemark
.s_spcl
.c_checksum
= CHECKSUM
- i
;
377 if (vflag
|| command
== 't' || command
== 'C')
380 if (tapeposflag
&& (unsigned long)spcl
.c_date
!= qfadumpdate
)
381 errx(1, "different QFA/dumpdates detected\n");
383 if (filesys
[0] == '\0') {
385 strncpy(filesys
, spcl
.c_filesys
, NAMELEN
);
386 filesys
[NAMELEN
- 1] = '\0';
387 dirptr
= strstr(filesys
, " (dir");
391 dumptime
= spcl
.c_ddate
;
392 dumpdate
= spcl
.c_date
;
393 if (STAT(".", &stbuf
) < 0)
394 err(1, "cannot stat .");
395 if (stbuf
.st_blksize
> 0 && stbuf
.st_blksize
< TP_BSIZE
)
397 if (stbuf
.st_blksize
>= TP_BSIZE
&& stbuf
.st_blksize
<= MAXBSIZE
)
398 fssize
= stbuf
.st_blksize
;
399 if (((fssize
- 1) & fssize
) != 0)
400 errx(1, "bad block size %ld", fssize
);
401 if (spcl
.c_volume
!= 1)
402 errx(1, "Tape is not volume 1 of the dump");
403 if (gethead(&spcl
) == FAIL
) {
404 Dprintf(stdout
, "header read failed at %ld blocks\n", (long)blksread
);
405 panic("no header after volume mark!\n");
409 if (spcl
.c_type
!= TS_CLRI
)
410 errx(1, "Cannot find file removal list");
411 maxino
= (spcl
.c_count
* TP_BSIZE
* NBBY
) + 1;
412 map
= calloc((unsigned)1, (unsigned)howmany(maxino
, NBBY
));
414 errx(1, "no memory for active inode map");
416 curfile
.action
= USING
;
417 getfile(xtrmap
, xtrmapskip
);
418 while (spcl
.c_type
== TS_ADDR
) {
419 /* Recompute maxino and the map */
420 dump_ino_t oldmaxino
= maxino
;
421 maxino
+= (spcl
.c_count
* TP_BSIZE
* NBBY
) + 1;
422 resizemaps(oldmaxino
, maxino
);
425 spcl
.c_dinode
.di_size
= spcl
.c_count
* TP_BSIZE
;
426 getfile(xtrmap
, xtrmapskip
);
428 Dprintf(stdout
, "maxino = %lu\n", (unsigned long)maxino
);
429 if (spcl
.c_type
!= TS_BITS
) {
430 if (spcl
.c_type
== TS_END
) {
431 msg("Cannot find file dump list, assuming empty tape\n");
434 errx(1, "Cannot find file dump list");
436 map
= calloc((unsigned)1, (unsigned)howmany(maxino
, NBBY
));
437 if (map
== (char *)NULL
)
438 errx(1, "no memory for file dump list");
440 curfile
.action
= USING
;
441 getfile(xtrmap
, xtrmapskip
);
442 while (spcl
.c_type
== TS_ADDR
) {
443 spcl
.c_dinode
.di_size
= spcl
.c_count
* TP_BSIZE
;
444 getfile(xtrmap
, xtrmapskip
);
447 * If there may be whiteout entries on the tape, pretend that the
448 * whiteout inode exists, so that the whiteout entries can be
452 SETINO(WINO
, dumpmap
);
458 * Prompt user to load a new dump volume.
459 * "Nextvol" is the next suggested volume to use.
460 * This suggested volume is enforced when doing full
461 * or incremental restores, but can be overridden by
462 * the user when only extracting a subset of the files.
467 long newvol
= 0, wantnext
= 0, i
;
468 long saved_blksread
= 0, saved_tpblksread
= 0;
469 union u_spcl tmpspcl
;
470 # define tmpbuf tmpspcl.s_spcl
472 int haderror
= 0, bot_code
= 1;
482 panic("Changing volumes on pipe input?\n");
487 saved_blksread
= blksread
;
488 saved_tpblksread
= tpblksread
;
489 #if defined(USE_QFA) && defined(sunos)
490 if (createtapeposflag
|| tapeposflag
)
495 exit(1); /* pipes do not get a second chance */
496 if (aflag
|| curfile
.action
!= SKIP
) {
503 while (newvol
<= 0) {
504 if (tapesread
== 0) {
505 fprintf(stderr
, "%s%s%s%s%s",
506 "You have not read any volumes yet.\n",
507 "Unless you know which volume your",
508 " file(s) are on you should start\n",
509 "with the last volume and work",
510 " towards the first.\n");
512 fprintf(stderr
, "You have read volumes");
514 for (i
= 1; i
< 32; i
++)
515 if (tapesread
& (1 << i
)) {
516 fprintf(stderr
, "%s%ld", buf
, (long)i
);
519 fprintf(stderr
, "\n");
522 fprintf(stderr
, "Specify next volume # (none if no more volumes): ");
523 (void) fflush(stderr
);
524 (void) fgets(buf
, TP_BSIZE
, terminal
);
525 } while (!feof(terminal
) && buf
[0] == '\n');
528 if (!strcmp(buf
, "none\n")) {
535 "Volume numbers are positive numerics\n");
538 if (newvol
== volno
) {
539 tapesread
|= 1 << volno
;
540 #if defined(USE_QFA) && defined(sunos)
541 if (createtapeposflag
|| tapeposflag
) {
542 if (OpenSMTCmt(magtape
) < 0) {
554 * if using an archive file, reset its name so readtape()
555 * could properly use remote access.
560 snprintf(magtape
, MAXPATHLEN
, "%s%03ld", magtapeprefix
, newvol
);
561 magtape
[MAXPATHLEN
- 1] = '\0';
563 if (bot_script
&& !haderror
) {
564 msg("Launching %s\n", bot_script
);
565 bot_code
= system_command(bot_script
, magtape
, newvol
);
566 if (bot_code
!= 0 && bot_code
!= 1) {
567 msg("Restore aborted by the beginning of tape script\n");
571 if (haderror
|| (bot_code
&& !Mflag
)) {
574 fprintf(stderr
, "Mount volume %ld\n", (long)newvol
);
576 fprintf(stderr
, "Mount tape volume %ld\n", (long)newvol
);
578 fprintf(stderr
, "Enter ``none'' if there are no more tapes\n");
580 fprintf(stderr
, "then enter volume name (default: %s) ", magtape
);
582 fprintf(stderr
, "otherwise enter tape name (default: %s) ", magtape
);
584 (void) fflush(stderr
);
585 (void) fgets(buf
, TP_BSIZE
, terminal
);
588 if (!strcmp(buf
, "none\n")) {
592 if (buf
[0] != '\n') {
594 (void) strncpy(magtape
, buf
, sizeof(magtape
));
595 magtape
[sizeof(magtape
) - 1] = '\0';
596 if ((pos
= strchr(magtape
, '\n')))
597 magtape
[pos
- magtape
] = '\0';
600 #if defined(USE_QFA) && defined(sunos)
601 if (createtapeposflag
|| tapeposflag
) {
602 if (OpenSMTCmt(magtape
) < 0) {
611 mt
= rmtopen(magtape
, O_RDONLY
);
614 mt
= OPEN(magtape
, O_RDONLY
, 0);
617 fprintf(stderr
, "Cannot open %s\n", magtape
);
624 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
625 readtape_func
= readtape_set
;
631 if (gethead(&tmpbuf
) == FAIL
) {
632 Dprintf(stdout
, "header read failed at %ld blocks\n", (long)blksread
);
633 fprintf(stderr
, "tape is not dump tape\n");
636 blksread
= saved_blksread
;
637 tpblksread
= saved_tpblksread
;
640 if (tmpbuf
.c_volume
!= volno
) {
641 fprintf(stderr
, "Wrong volume (%d)\n", tmpbuf
.c_volume
);
644 blksread
= saved_blksread
;
645 tpblksread
= saved_tpblksread
;
648 if (tmpbuf
.c_date
!= dumpdate
|| tmpbuf
.c_ddate
!= dumptime
) {
649 fprintf(stderr
, "Wrong dump date\n\tgot: %s",
651 ctime(&tmpbuf
.c_date
));
653 ctime4(&tmpbuf
.c_date
));
655 fprintf(stderr
, "\twanted: %s", ctime(&dumpdate
));
658 blksread
= saved_blksread
;
659 tpblksread
= saved_tpblksread
;
662 tapesread
|= 1 << volno
;
664 * If continuing from the previous volume, skip over any
665 * blocks read already at the end of the previous volume.
667 * If coming to this volume at random, skip to the beginning
668 * of the next record.
671 fprintf(stderr
, "Dump tape is compressed.\n");
672 #if !defined(HAVE_ZLIB) && !defined(HAVE_BZLIB) && !defined(HAVE_LZO)
673 errx(1,"This restore version doesn't support decompression");
674 #endif /* !HAVE_ZLIB && !HAVE_BZLIB */
676 Dprintf(stdout
, "read %ld recs, tape starts with %ld\n",
677 tpblksread
- 1, (long)tmpbuf
.c_firstrec
);
678 if (tmpbuf
.c_type
== TS_TAPE
&& (tmpbuf
.c_flags
& DR_NEWHEADER
)) {
680 tpblksread
= tmpbuf
.c_firstrec
+ 1;
681 for (i
= tmpbuf
.c_count
; i
> 0; i
--)
683 } else if (tmpbuf
.c_firstrec
> 0 &&
684 tmpbuf
.c_firstrec
< tpblksread
- 1) {
686 * -1 since we've read the volume header
688 i
= tpblksread
- tmpbuf
.c_firstrec
- 1;
689 Dprintf(stderr
, "Skipping %ld duplicate record%s.\n",
690 (long)i
, i
> 1 ? "s" : "");
695 if (curfile
.action
== USING
) {
697 panic("active file into volume 1\n");
701 * Skip up to the beginning of the next record
703 if (tmpbuf
.c_type
== TS_TAPE
&& (tmpbuf
.c_flags
& DR_NEWHEADER
))
704 for (i
= tmpbuf
.c_count
; i
> 0; i
--)
706 (void) gethead(&spcl
);
710 siglongjmp(restart
, 1);
715 * Handle unexpected EOF.
721 if (gettingfile
&& curfile
.action
== USING
) {
722 printf("Warning: %s %s\n",
723 "End-of-input encountered while extracting", curfile
.name
);
725 curfile
.name
= "<name unknown>";
726 curfile
.action
= UNKNOWN
;
728 curfile
.ino
= maxino
;
731 siglongjmp(restart
, 1);
736 * handle multiple dumps per tape by skipping forward to the
744 if (dumpnum
== 1 || volno
!= 1)
747 errx(1, "Cannot have multiple dumps on pipe input");
749 tcom
.mt_count
= dumpnum
- 1;
752 if (rmtioctl(MTFSF
, dumpnum
- 1) < 0) {
753 fprintf(stderr
, "rmtioctl MTFSF: %s\n", strerror(errno
));
758 if (ioctl(mt
, (int)MTIOCTOP
, (char *)&tcom
) < 0) {
759 fprintf(stderr
, "rmtioctl MTFSF: %s\n", strerror(errno
));
761 /* warn("ioctl MTFSF"); */
769 Vprintf(stdout
, "Dump date: %s", ctime(&spcl
.c_date
));
770 Vprintf(stdout
, "Dumped from: %s",
771 (spcl
.c_ddate
== 0) ? "the epoch\n" : ctime(&spcl
.c_ddate
));
772 if (spcl
.c_host
[0] == '\0')
774 Vprintf(stdout
, "Level %d dump of %s on %s:%s\n",
775 spcl
.c_level
, spcl
.c_filesys
, spcl
.c_host
, spcl
.c_dev
);
776 Vprintf(stdout
, "Label: %s\n", spcl
.c_label
);
778 fprintf(stdout
, "Dump date: %s", ctime4(&spcl
.c_date
));
779 fprintf(stdout
, "Dumped from: %s",
780 (spcl
.c_ddate
== 0) ? "the epoch\n" : ctime4(&spcl
.c_ddate
));
781 if (spcl
.c_host
[0] == '\0')
783 fprintf(stdout
, "Level %d dump of %s on %s:%s\n",
784 spcl
.c_level
, spcl
.c_filesys
, spcl
.c_host
, spcl
.c_dev
);
785 fprintf(stdout
, "Label: %s\n", spcl
.c_label
);
794 if (volinfo
[1] == ROOTINO
) {
795 printf("Starting inode numbers by volume:\n");
796 for (i
= 1; i
< (int)TP_NINOS
&& volinfo
[i
] != 0; ++i
)
797 printf("\tVolume %d: %lu\n", i
, (unsigned long)volinfo
[i
]);
803 extractfile(struct entry
*ep
, int doremove
)
807 struct timeval timep
[2];
808 char *name
= myname(ep
);
810 /* If removal is requested (-r mode) do remove it unless
811 * we are extracting a metadata only inode */
812 if (spcl
.c_flags
& DR_METAONLY
) {
813 Vprintf(stdout
, "file %s is metadata only\n", name
);
818 ep
->e_flags
&= ~REMOVED
;
823 curfile
.action
= USING
;
824 #if defined(__linux__) || defined(sunos)
825 timep
[0].tv_sec
= curfile
.dip
->di_atime
.tv_sec
;
826 timep
[0].tv_usec
= curfile
.dip
->di_atime
.tv_usec
;
827 timep
[1].tv_sec
= curfile
.dip
->di_mtime
.tv_sec
;
828 timep
[1].tv_usec
= curfile
.dip
->di_mtime
.tv_usec
;
829 #else /* __linux__ || sunos */
830 timep
[0].tv_sec
= curfile
.dip
->di_atime
;
831 timep
[0].tv_usec
= curfile
.dip
->di_atimensec
/ 1000;
832 timep
[1].tv_sec
= curfile
.dip
->di_mtime
;
833 timep
[1].tv_usec
= curfile
.dip
->di_mtimensec
/ 1000;
834 #endif /* __linux__ */
835 mode
= curfile
.dip
->di_mode
;
836 flags
= curfile
.dip
->di_flags
;
837 switch (mode
& IFMT
) {
840 fprintf(stderr
, "%s: unknown file mode 0%o\n", name
, mode
);
845 Vprintf(stdout
, "skipped socket %s\n", name
);
853 if (ep
== NULL
|| ep
->e_flags
& EXTRACT
)
854 panic("unextracted directory %s\n", name
);
858 Vprintf(stdout
, "extract dir %s\n", name
);
859 ret
= genliteraldir(name
, curfile
.ino
);
867 uid_t luid
= curfile
.dip
->di_uid
;
868 gid_t lgid
= curfile
.dip
->di_gid
;
870 if (! (spcl
.c_flags
& DR_METAONLY
)) {
873 getfile(xtrlnkfile
, xtrlnkskip
);
876 "%s: zero length symbolic link (ignored)\n", name
);
879 if (linkit(lnkbuf
, name
, SYMLINK
) == FAIL
)
886 (void) lchown(name
, luid
, lgid
);
893 Vprintf(stdout
, "extract fifo %s\n", name
);
898 if (! (spcl
.c_flags
& DR_METAONLY
)) {
901 if (mkfifo(name
, mode
) < 0) {
902 warn("%s: cannot create fifo", name
);
907 (void) chown(name
, curfile
.dip
->di_uid
, curfile
.dip
->di_gid
);
908 (void) chmod(name
, mode
);
911 (void) lsetflags(name
, flags
);
915 warn("%s: cannot call chflags", name
);
916 /* (void) chflags(name, flags); */
919 (void) chflags(name
, flags
);
929 Vprintf(stdout
, "extract special file %s\n", name
);
934 if (! (spcl
.c_flags
& DR_METAONLY
)) {
937 if (mknod(name
, mode
, (int)curfile
.dip
->di_rdev
) < 0) {
938 warn("%s: cannot create special file", name
);
943 (void) chown(name
, curfile
.dip
->di_uid
, curfile
.dip
->di_gid
);
944 (void) chmod(name
, mode
);
948 warn("%s: lsetflags called on a special file", name
);
949 (void) lsetflags(name
, flags
);
954 warn("%s: cannot call chflags on a special file", name
);
955 /* (void) chflags(name, flags); */
959 warn("%s: chflags called on a special file", name
);
960 (void) chflags(name
, flags
);
971 uid_t luid
= curfile
.dip
->di_uid
;
972 gid_t lgid
= curfile
.dip
->di_gid
;
974 Vprintf(stdout
, "extract file %s\n", name
);
979 if (! (spcl
.c_flags
& DR_METAONLY
)) {
982 if ((ofile
= OPEN(name
, O_WRONLY
| O_CREAT
| O_TRUNC
,
984 warn("%s: cannot create file", name
);
988 getfile(xtrfile
, xtrskip
);
993 (void) chown(name
, luid
, lgid
);
994 (void) chmod(name
, mode
);
997 (void) lsetflags(name
, flags
);
1001 warn("%s: cannot call chflags", name
);
1002 /* (void) chflags(name, flags); */
1005 (void) chflags(name
, flags
);
1009 utimes(name
, timep
);
1017 extractattr(char *path
)
1019 while (spcl
.c_flags
& DR_EXTATTRIBUTES
) {
1020 switch (spcl
.c_extattributes
) {
1021 case EXT_MACOSFNDRINFO
:
1023 (void)extractfinderinfoufs(path
);
1025 msg("MacOSX not supported in this version, skipping\n");
1029 case EXT_MACOSRESFORK
:
1031 (void)extractresourceufs(path
);
1033 msg("MacOSX not supported in this version, skipping\n");
1038 char xattr
[XATTR_MAXSIZE
];
1040 if (readxattr(xattr
) == GOOD
) {
1041 xattr_extract(path
, xattr
);
1046 msg("unexpected inode extension %ld, skipping\n", spcl
.c_extattributes
);
1056 extractfinderinfoufs(char *name
)
1059 char oFileRsrc
[MAXPATHLEN
];
1062 struct timeval timep
[2];
1065 char path
[MAXPATHLEN
], fname
[MAXPATHLEN
];
1067 curfile
.name
= name
;
1068 curfile
.action
= USING
;
1069 timep
[0].tv_sec
= curfile
.dip
->di_atime
.tv_sec
;
1070 timep
[0].tv_usec
= curfile
.dip
->di_atime
.tv_usec
;
1071 timep
[1].tv_sec
= curfile
.dip
->di_mtime
.tv_sec
;
1072 timep
[1].tv_usec
= curfile
.dip
->di_mtime
.tv_usec
;
1073 mode
= curfile
.dip
->di_mode
;
1074 flags
= curfile
.dip
->di_flags
;
1075 uid
= curfile
.dip
->di_uid
;
1076 gid
= curfile
.dip
->di_gid
;
1078 switch (mode
& IFMT
) {
1081 fprintf(stderr
, "%s: (extr. finfoufs) unknown file mode 0%o\n", name
, mode
);
1086 fprintf(stderr
, "%s: (extr. finfoufs[IFDIR]) unknown file mode 0%o\n", name
, mode
);
1095 Vprintf(stdout
, "extract finderinfo file %s\n", name
);
1100 getfile(xtrfilefinderinfo
, xtrskip
);
1102 GetPathFile(name
, path
, fname
);
1103 strcpy(oFileRsrc
, path
);
1104 strcat(oFileRsrc
, "._");
1105 strcat(oFileRsrc
, fname
);
1107 if ((err
= CreateAppleDoubleFileRes(oFileRsrc
, &gFndrInfo
.fndrinfo
,
1108 mode
, flags
, timep
, uid
, gid
)) != 0) {
1109 fprintf(stderr
, "%s: cannot create finderinfo: %s\n",
1110 name
, strerror(errno
));
1121 extractresourceufs(char *name
)
1123 char oFileRsrc
[MAXPATHLEN
];
1126 struct timeval timep
[2];
1127 char path
[MAXPATHLEN
], fname
[MAXPATHLEN
];
1137 curfile
.name
= name
;
1138 curfile
.action
= USING
;
1139 timep
[0].tv_sec
= curfile
.dip
->di_atime
.tv_sec
;
1140 timep
[0].tv_usec
= curfile
.dip
->di_atime
.tv_usec
;
1141 timep
[1].tv_sec
= curfile
.dip
->di_mtime
.tv_sec
;
1142 timep
[1].tv_usec
= curfile
.dip
->di_mtime
.tv_usec
;
1143 mode
= curfile
.dip
->di_mode
;
1144 flags
= curfile
.dip
->di_flags
;
1145 uid
= curfile
.dip
->di_uid
;
1146 gid
= curfile
.dip
->di_gid
;
1147 di_size
= curfile
.dip
->di_size
;
1149 switch (mode
& IFMT
) {
1152 fprintf(stderr
, "%s: (extr. resufs) unknown file mode 0%o\n", name
, mode
);
1157 fprintf(stderr
, "%s: (extr. resufs [IFDIR]) unknown file mode 0%o\n", name
, mode
);
1166 Vprintf(stdout
, "extract resource file %s\n", name
);
1172 GetPathFile(name
, path
, fname
);
1173 strcpy(oFileRsrc
, path
);
1174 strcat(oFileRsrc
, "._");
1175 strcat(oFileRsrc
, fname
);
1177 if ((ofile
= open(oFileRsrc
, O_RDONLY
, 0)) < 0) {
1178 fprintf(stderr
, "%s: cannot read finderinfo: %s\n",
1179 name
, strerror(errno
));
1183 read(ofile
, buf
, 70);
1184 (void) close(ofile
);
1186 hp
= (ASDHeaderPtr
)p
;
1189 p
+= sizeof(ASDHeader
) - CORRECT
;
1190 ep
= (ASDEntryPtr
)p
;
1191 /* the finderinfo entry */
1192 ep
->offset
+= sizeof(ASDEntry
);
1195 p
+= sizeof(ASDEntry
);
1196 /* the finderinfo data */
1197 bcopy(p
, p
+ sizeof(ASDEntry
), INFOLEN
);
1198 ep
= (ASDEntryPtr
)p
;
1199 /* the new resourcefork entry */
1200 ep
->entryID
= EntryRSRCFork
;
1201 ep
->offset
= loff
+ INFOLEN
;
1203 /* write the new appledouble entries to the file */
1204 if ((ofile
= open(oFileRsrc
, O_WRONLY
| O_CREAT
| O_TRUNC
, 0666)) < 0) {
1205 fprintf(stderr
, "%s: cannot create resource file: %s\n",
1206 name
, strerror(errno
));
1210 write(ofile
, buf
, 70 + sizeof(ASDEntry
));
1211 /* and add the resource data from tape */
1212 getfile(xtrfile
, xtrskip
);
1214 (void) fchown(ofile
, uid
, gid
);
1215 (void) fchmod(ofile
, mode
);
1216 (void) close(ofile
);
1217 (void) lsetflags(oFileRsrc
, flags
);
1218 utimes(oFileRsrc
, timep
);
1223 #endif /* DUMP_MACOSX */
1226 readxattr(char *buffer
)
1229 msg("reading EA data for inode %lu\n", curfile
.ino
);
1231 curfile
.name
= "EA block";
1232 if (curfile
.dip
->di_size
> XATTR_MAXSIZE
) {
1233 fprintf(stderr
, "EA size too big (%ld)", (long)curfile
.dip
->di_size
);
1238 memset(xattrbuf
, 0, XATTR_MAXSIZE
);
1241 getfile(xtrxattr
, xtrnull
);
1243 memcpy(buffer
, xattrbuf
, XATTR_MAXSIZE
);
1249 * skip over bit maps on the tape
1255 while (spcl
.c_type
== TS_BITS
|| spcl
.c_type
== TS_CLRI
)
1260 * skip over a file on the tape
1266 curfile
.action
= SKIP
;
1267 getfile(xtrnull
, xtrnull
);
1271 * skip over any extended attributes.
1277 while (spcl
.c_flags
& DR_EXTATTRIBUTES
)
1282 * Extract a file from the tape.
1283 * When an allocated block is found it is passed to the fill function;
1284 * when an unallocated block (hole) is found, a zeroed buffer is passed
1285 * to the skip function.
1288 getfile(void (*fill
) __P((char *, size_t)), void (*skip
) __P((char *, size_t)))
1291 volatile int curblk
= 0;
1292 volatile quad_t size
= spcl
.c_dinode
.di_size
;
1293 volatile int last_write_was_hole
= 0;
1294 quad_t origsize
= size
;
1295 static char clearedbuf
[MAXBSIZE
];
1296 char buf
[MAXBSIZE
/ TP_BSIZE
][TP_BSIZE
];
1297 char junk
[TP_BSIZE
];
1299 if (spcl
.c_type
== TS_END
)
1300 panic("ran off end of tape\n");
1301 if (spcl
.c_magic
!= NFS_MAGIC
)
1302 panic("not at beginning of a file\n");
1303 if (!gettingfile
&& setjmp(restart
) != 0)
1307 for (i
= 0; i
< spcl
.c_count
; i
++) {
1308 if (readmapflag
|| spcl
.c_addr
[i
]) {
1309 readtape(&buf
[curblk
++][0]);
1310 if (curblk
== fssize
/ TP_BSIZE
) {
1311 (*fill
)((char *)buf
, (size_t)(size
> TP_BSIZE
?
1312 fssize
: (curblk
- 1) * TP_BSIZE
+ size
));
1314 last_write_was_hole
= 0;
1318 (*fill
)((char *)buf
, (size_t)(size
> TP_BSIZE
?
1320 (curblk
- 1) * TP_BSIZE
+ size
));
1323 (*skip
)(clearedbuf
, (long)(size
> TP_BSIZE
?
1325 last_write_was_hole
= 1;
1327 if ((size
-= TP_BSIZE
) <= 0) {
1328 for (i
++; i
< spcl
.c_count
; i
++)
1329 if (readmapflag
|| spcl
.c_addr
[i
])
1334 if (gethead(&spcl
) == GOOD
&& size
> 0) {
1335 if (spcl
.c_type
== TS_ADDR
)
1338 "Missing address (header) block for %s at %ld blocks\n",
1339 curfile
.name
, (long)blksread
);
1342 (*fill
)((char *)buf
, (size_t)((curblk
* TP_BSIZE
) + size
));
1343 last_write_was_hole
= 0;
1346 fprintf(stderr
, "Missing blocks at the end of %s, assuming hole\n", curfile
.name
);
1348 size_t skp
= size
> TP_BSIZE
? TP_BSIZE
: size
;
1349 (*skip
)(clearedbuf
, skp
);
1352 last_write_was_hole
= 1;
1354 if (last_write_was_hole
) {
1355 FTRUNCATE(ofile
, origsize
);
1363 * Write out the next block of a file.
1366 xtrfile(char *buf
, size_t size
)
1371 if (write(ofile
, buf
, (int) size
) == -1)
1372 err(1, "write error extracting inode %lu, name %s\nwrite",
1373 (unsigned long)curfile
.ino
, curfile
.name
);
1378 xtrfilefinderinfo(char *buf
, size_t size
)
1380 bcopy(buf
, &gFndrInfo
, size
);
1382 #endif /* DUMP_MACOSX */
1385 * Skip over a hole in a file.
1389 xtrskip(UNUSED(char *buf
), size_t size
)
1392 if (LSEEK(ofile
, (OFF_T
)size
, SEEK_CUR
) == -1)
1393 err(1, "seek error extracting inode %lu, name %s\nlseek",
1394 (unsigned long)curfile
.ino
, curfile
.name
);
1398 * Collect the next block of a symbolic link.
1401 xtrlnkfile(char *buf
, size_t size
)
1405 if (pathlen
> MAXPATHLEN
) {
1406 buf
[size
- 1] = '\0';
1407 errx(1, "symbolic link name: %s->%s%s; too long %d",
1408 curfile
.name
, lnkbuf
, buf
, pathlen
);
1410 (void) strcat(lnkbuf
, buf
);
1411 lnkbuf
[pathlen
] = '\0';
1415 * Skip over a hole in a symbolic link (should never happen).
1419 xtrlnkskip(UNUSED(char *buf
), UNUSED(size_t size
))
1422 errx(1, "unallocated block in symbolic link %s", curfile
.name
);
1426 * Collect the next block of a bit map.
1429 xtrmap(char *buf
, size_t size
)
1432 memmove(map
, buf
, size
);
1437 * Skip over a hole in a bit map (should never happen).
1441 xtrmapskip(UNUSED(char *buf
), size_t size
)
1444 panic("hole in map\n");
1449 * Noop, when an extraction function is not needed.
1453 xtrnull(UNUSED(char *buf
), UNUSED(size_t size
))
1459 #if COMPARE_ONTHEFLY
1461 * Compare the next block of a file.
1464 xtrcmpfile(char *buf
, size_t size
)
1466 static char cmpbuf
[MAXBSIZE
];
1471 if (read(ifile
, cmpbuf
, size
) != (ssize_t
)size
) {
1472 fprintf(stderr
, "%s: size has changed.\n",
1478 if (memcmp(buf
, cmpbuf
, size
) != 0) {
1479 fprintf(stderr
, "%s: tape and disk copies are different\n",
1487 * Skip over a hole in a file.
1490 xtrcmpskip(UNUSED(char *buf
), size_t size
)
1492 static char cmpbuf
[MAXBSIZE
];
1498 if (read(ifile
, cmpbuf
, size
) != (ssize_t
)size
) {
1499 fprintf(stderr
, "%s: size has changed.\n",
1505 for (i
= 0; i
< (int)size
; ++i
)
1506 if (cmpbuf
[i
] != '\0') {
1507 fprintf(stderr
, "%s: tape and disk copies are different\n",
1513 #endif /* COMPARE_ONTHEFLY */
1516 xtrxattr(char *buf
, size_t size
)
1518 if (xattrlen
+ size
> XATTR_MAXSIZE
) {
1519 fprintf(stderr
, "EA size too big (%ld)", (long)xattrlen
+ size
);
1522 memcpy(xattrbuf
+ xattrlen
, buf
, size
);
1526 #if !COMPARE_ONTHEFLY
1528 do_cmpfiles(int fd_tape
, int fd_disk
, OFF_T size
)
1530 static char buf_tape
[BUFSIZ
];
1531 static char buf_disk
[BUFSIZ
];
1536 if ((n_tape
= read(fd_tape
, buf_tape
, sizeof(buf_tape
))) < 1) {
1537 close(fd_tape
), close(fd_disk
);
1538 panic("do_cmpfiles: unexpected EOF[1]");
1540 if ((n_disk
= read(fd_disk
, buf_disk
, sizeof(buf_tape
))) < 1) {
1541 close(fd_tape
), close(fd_disk
);
1542 panic("do_cmpfiles: unexpected EOF[2]");
1544 if (n_tape
!= n_disk
) {
1545 close(fd_tape
), close(fd_disk
);
1546 panic("do_cmpfiles: sizes different!");
1548 if (memcmp(buf_tape
, buf_disk
, (size_t)n_tape
) != 0) return (1);
1554 /* for debugging compare problems */
1555 #undef COMPARE_FAIL_KEEP_FILE
1558 #ifdef COMPARE_FAIL_KEEP_FILE
1559 /* return true if tapefile should be unlinked after compare */
1564 cmpfiles(char *tapefile
, char *diskfile
, struct STAT
*sbuf_disk
)
1566 struct STAT sbuf_tape
;
1567 int fd_tape
, fd_disk
;
1569 if (STAT(tapefile
, &sbuf_tape
) != 0) {
1570 panic("can't lstat tmp file %s: %s\n", tapefile
,
1575 if (sbuf_disk
->st_size
!= sbuf_tape
.st_size
) {
1577 "%s: size changed from %lld to %lld.\n",
1578 diskfile
, (long long)sbuf_tape
.st_size
, (long long)sbuf_disk
->st_size
);
1580 #ifdef COMPARE_FAIL_KEEP_FILE
1587 if ((fd_tape
= OPEN(tapefile
, O_RDONLY
)) < 0) {
1588 panic("can't open %s: %s\n", tapefile
, strerror(errno
));
1591 if ((fd_disk
= OPEN(diskfile
, O_RDONLY
)) < 0) {
1593 panic("can't open %s: %s\n", diskfile
, strerror(errno
));
1597 if (do_cmpfiles(fd_tape
, fd_disk
, sbuf_tape
.st_size
)) {
1598 fprintf(stderr
, "%s: tape and disk copies are different\n",
1603 #ifdef COMPARE_FAIL_KEEP_FILE
1604 /* rename the file to live in /tmp */
1605 /* rename `tapefile' to /tmp/<basename of diskfile> */
1607 char *p
= strrchr(diskfile
, '/');
1608 char newname
[MAXPATHLEN
];
1610 panic("can't find / in %s\n", diskfile
);
1612 snprintf(newname
, sizeof(newname
), "%s/debug/%s", tmpdir
, p
+ 1);
1613 if (rename(tapefile
, newname
)) {
1614 panic("rename from %s to %s failed: %s\n",
1618 fprintf(stderr
, "*** %s saved to %s\n",
1623 /* don't unlink the file (it's not there anymore */
1632 #ifdef COMPARE_FAIL_KEEP_FILE
1636 #endif /* !COMPARE_ONTHEFLY */
1639 compareattr(char *name
)
1643 while (spcl
.c_flags
& DR_EXTATTRIBUTES
) {
1644 switch (spcl
.c_extattributes
) {
1645 case EXT_MACOSFNDRINFO
:
1646 msg("MacOSX not supported for comparision in this version, skipping\n");
1649 case EXT_MACOSRESFORK
:
1650 msg("MacOSX not supported for comparision in this version, skipping\n");
1654 char xattr
[XATTR_MAXSIZE
];
1656 if (readxattr(xattr
) == GOOD
) {
1657 if (xattr_compare(name
, xattr
) == FAIL
)
1666 msg("unexpected inode extension %ld, skipping\n", spcl
.c_extattributes
);
1671 if (!xattr_done
&& xattr_compare(name
, NULL
) == FAIL
)
1675 #if !COMPARE_ONTHEFLY
1676 static char tmpfilename
[MAXPATHLEN
];
1680 comparefile(char *name
)
1686 unsigned long newflags
;
1689 #if !COMPARE_ONTHEFLY
1690 static char *tmpfile
= NULL
;
1693 curfile
.name
= name
;
1694 curfile
.action
= USING
;
1695 mode
= curfile
.dip
->di_mode
;
1696 flags
= curfile
.dip
->di_flags
;
1697 uid
= curfile
.dip
->di_uid
;
1698 gid
= curfile
.dip
->di_gid
;
1700 if ((mode
& IFMT
) == IFSOCK
) {
1701 Vprintf(stdout
, "skipped socket %s\n", name
);
1706 if ((r
= LSTAT(name
, &sb
)) != 0) {
1707 warn("unable to stat %s", name
);
1713 Vprintf(stdout
, "comparing %s (size: %lld, mode: 0%o)\n", name
,
1714 (long long)sb
.st_size
, mode
);
1716 if (sb
.st_mode
!= mode
) {
1717 fprintf(stderr
, "%s: mode changed from 0%o to 0%o.\n",
1718 name
, mode
& 07777, sb
.st_mode
& 07777);
1721 if (sb
.st_uid
!= uid
) {
1722 fprintf(stderr
, "%s: uid changed from %d to %d.\n",
1723 name
, uid
, sb
.st_uid
);
1726 if (sb
.st_gid
!= gid
) {
1727 fprintf(stderr
, "%s: gid changed from %d to %d.\n",
1728 name
, gid
, sb
.st_gid
);
1732 if (lgetflags(name
, &newflags
) < 0) {
1734 warn("%s: lgetflags failed", name
);
1739 if (newflags
!= flags
) {
1740 fprintf(stderr
, "%s: flags changed from 0x%08x to 0x%08lx.\n",
1741 name
, flags
, newflags
);
1746 if (spcl
.c_flags
& DR_METAONLY
) {
1750 switch (mode
& IFMT
) {
1765 char lbuf
[MAXPATHLEN
+ 1];
1768 if (!(sb
.st_mode
& S_IFLNK
)) {
1769 fprintf(stderr
, "%s: is no longer a symbolic link\n",
1776 getfile(xtrlnkfile
, xtrlnkskip
);
1779 "%s: zero length symbolic link (ignored)\n",
1784 if ((lsize
= readlink(name
, lbuf
, MAXPATHLEN
)) < 0) {
1785 panic("readlink of %s failed: %s\n", name
,
1790 if (strcmp(lbuf
, lnkbuf
) != 0) {
1792 "%s: symbolic link changed from %s to %s.\n",
1793 name
, lnkbuf
, lbuf
);
1803 if (!(sb
.st_mode
& (S_IFCHR
|S_IFBLK
))) {
1804 fprintf(stderr
, "%s: no longer a special file\n",
1811 if (sb
.st_rdev
!= (dev_t
)curfile
.dip
->di_rdev
) {
1813 "%s: device changed from %d,%d to %d,%d.\n",
1815 major(curfile
.dip
->di_rdev
),
1816 minor(curfile
.dip
->di_rdev
),
1826 #if COMPARE_ONTHEFLY
1827 if ((ifile
= OPEN(name
, O_RDONLY
)) < 0) {
1828 warn("can't open %s", name
);
1834 getfile(xtrcmpfile
, xtrcmpskip
);
1837 if (read(ifile
, &c
, 1) != 0) {
1838 fprintf(stderr
, "%s: size has changed.\n",
1848 if (tmpfile
== NULL
) {
1849 /* argument to mktemp() must not be in RO space: */
1850 snprintf(tmpfilename
, sizeof(tmpfilename
), "%s/restoreCXXXXXX", tmpdir
);
1851 tmpfile
= mktemp(&tmpfilename
[0]);
1853 if ((STAT(tmpfile
, &stemp
) == 0) && (unlink(tmpfile
) != 0)) {
1854 panic("cannot delete tmp file %s: %s\n",
1855 tmpfile
, strerror(errno
));
1857 if ((ofile
= OPEN(tmpfile
, O_WRONLY
| O_CREAT
| O_TRUNC
, 0600)) < 0) {
1858 panic("cannot create file temp file %s: %s\n",
1859 name
, strerror(errno
));
1861 getfile(xtrfile
, xtrskip
);
1862 (void) close(ofile
);
1863 #ifdef COMPARE_FAIL_KEEP_FILE
1864 if (cmpfiles(tmpfile
, name
, &sb
))
1867 cmpfiles(tmpfile
, name
, &sb
);
1870 #endif /* COMPARE_ONTHEFLY */
1877 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
1878 static void (*readtape_func
)(char *) = readtape_set
;
1881 * Read TP_BSIZE blocks from the input.
1882 * Handle read errors, and end of media.
1883 * Decompress compressed blocks.
1888 (*readtape_func
)(buf
); /* call the actual processing routine */
1892 * Set function pointer for readtape() routine. zflag and magtapein must
1893 * be correctly set before the first call to readtape().
1896 readtape_set(char *buf
)
1899 readtape_func
= readtape_uncompr
;
1903 readtape_func
= readtape_comprtape
;
1905 readtape_func
= readtape_comprfile
;
1910 #endif /* HAVE_ZLIB || HAVE_BZLIB || HAVE_LZO */
1913 * This is the original readtape(), it's used for reading uncompressed input.
1914 * Read TP_BSIZE blocks from the input.
1915 * Handle read errors, and end of media.
1918 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
1919 readtape_uncompr(char *buf
)
1924 ssize_t rd
, newvol
, i
;
1925 int cnt
, seek_failed
;
1927 if (blkcnt
< numtrec
) {
1928 memmove(buf
, &tbufptr
[(blkcnt
++ * TP_BSIZE
)], TP_BSIZE
);
1934 for (i
= 0; i
< ntrec
; i
++)
1935 ((struct s_spcl
*)&tapebuf
[i
* TP_BSIZE
])->c_magic
= 0;
1938 cnt
= ntrec
* TP_BSIZE
;
1941 if (createtapeposflag
)
1942 (void)GetTapePos(&curtapepos
);
1947 i
= rmtread(&tapebuf
[rd
], cnt
);
1950 i
= read(mt
, &tapebuf
[rd
], cnt
);
1953 * Check for mid-tape short read error.
1954 * If found, skip rest of buffer and start with the next.
1956 if (!pipein
&& numtrec
< ntrec
&& i
> 0) {
1957 Dprintf(stdout
, "mid-media short read error.\n");
1961 * Handle partial block read.
1963 if (pipein
&& i
== 0 && rd
> 0)
1965 else if (i
> 0 && i
!= ntrec
* TP_BSIZE
) {
1974 * Short read. Process the blocks read.
1976 if (i
% TP_BSIZE
!= 0)
1978 "partial block read: %ld should be %ld\n",
1979 (long)i
, ntrec
* TP_BSIZE
);
1980 numtrec
= i
/ TP_BSIZE
;
1984 * Handle read error.
1987 fprintf(stderr
, "Tape read error while ");
1988 switch (curfile
.action
) {
1990 fprintf(stderr
, "trying to set up tape\n");
1993 fprintf(stderr
, "trying to resynchronize\n");
1996 fprintf(stderr
, "restoring %s\n", curfile
.name
);
1999 fprintf(stderr
, "skipping over inode %lu\n",
2000 (unsigned long)curfile
.ino
);
2003 if (!yflag
&& !reply("continue"))
2005 i
= ntrec
* TP_BSIZE
;
2006 memset(tapebuf
, 0, (size_t)i
);
2009 seek_failed
= (rmtseek(i
, 1) < 0);
2012 seek_failed
= (LSEEK(mt
, i
, SEEK_CUR
) == (OFF_T
)-1);
2015 warn("continuation failed");
2016 if (!yflag
&& !reply("assume end-of-tape and continue"))
2022 * Handle end of tape.
2025 Vprintf(stdout
, "End-of-tape encountered\n");
2034 if (rd
% TP_BSIZE
!= 0)
2035 panic("partial block read: %d should be %d\n",
2036 rd
, ntrec
* TP_BSIZE
);
2038 memmove(&tapebuf
[rd
], &endoftapemark
, TP_BSIZE
);
2041 memmove(buf
, &tbufptr
[(blkcnt
++ * TP_BSIZE
)], TP_BSIZE
);
2046 #if defined(HAVE_ZLIB) || defined(HAVE_BZLIB) || defined(HAVE_LZO)
2049 * Read a compressed format block from a file or pipe and uncompress it.
2050 * Attempt to handle read errors, and end of file.
2053 readtape_comprfile(char *buf
)
2055 long rl
, size
, i
, ret
;
2057 struct tapebuf
*tpb
;
2059 if (blkcnt
< numtrec
) {
2060 memmove(buf
, &tbufptr
[(blkcnt
++ * TP_BSIZE
)], TP_BSIZE
);
2065 /* need to read the next block */
2067 for (i
= 0; i
< ntrec
; i
++)
2068 ((struct s_spcl
*)&tapebuf
[i
* TP_BSIZE
])->c_magic
= 0;
2070 tpb
= (struct tapebuf
*) tapebuf
;
2072 /* read the block prefix */
2073 ret
= read_a_block(mt
, tapebuf
, PREFIXSIZE
, &rl
);
2074 converttapebuf(tpb
);
2076 if (Vflag
&& (ret
== 0 || rl
< (int)PREFIXSIZE
|| tpb
->length
== 0))
2083 if (size
> bufsize
) {
2084 /* something's wrong */
2085 Vprintf(stdout
, "Prefix size error, max size %d, got %ld\n",
2088 tpb
->length
= bufsize
;
2090 ret
= read_a_block(mt
, tpb
->buf
, size
, &rl
);
2094 tbufptr
= decompress_tapebuf(tpb
, rl
+ PREFIXSIZE
);
2095 if (tbufptr
== NULL
) {
2096 msg_read_error("File decompression error while");
2097 if (!yflag
&& !reply("continue"))
2099 memset(tapebuf
, 0, bufsize
);
2104 memmove(buf
, &tbufptr
[(blkcnt
++ * TP_BSIZE
)], TP_BSIZE
);
2110 /* Errors while reading from a file or pipe are catastrophic. Since
2111 * there are no block boundaries, it's impossible to bypass the
2112 * block in error and find the start of the next block.
2115 /* It's possible to have multiple input files using -M
2116 * and -f file1,file2...
2118 Vprintf(stdout
, "End-of-File encountered\n");
2128 msg_read_error("Read error while");
2129 /* if (!yflag && !reply("continue")) */
2134 * Read compressed data from a tape and uncompress it.
2135 * Handle read errors, and end of media.
2136 * Since a tape consists of separate physical blocks, we try
2137 * to recover from errors by repositioning the tape to the next
2141 readtape_comprtape(char *buf
)
2145 struct tapebuf
*tpb
;
2148 if (blkcnt
< numtrec
) {
2149 memmove(buf
, &tbufptr
[(blkcnt
++ * TP_BSIZE
)], TP_BSIZE
);
2154 /* need to read the next block */
2156 for (i
= 0; i
< ntrec
; i
++)
2157 ((struct s_spcl
*)&tapebuf
[i
* TP_BSIZE
])->c_magic
= 0;
2159 tpb
= (struct tapebuf
*) tapebuf
;
2161 /* read the block */
2162 size
= bufsize
+ PREFIXSIZE
;
2163 ret
= read_a_block(mt
, tapebuf
, size
, &rl
);
2167 converttapebuf(tpb
);
2168 tbufptr
= decompress_tapebuf(tpb
, rl
);
2169 if (tbufptr
== NULL
) {
2170 msg_read_error("Tape decompression error while");
2171 if (!yflag
&& !reply("continue"))
2173 memset(tapebuf
, 0, PREFIXSIZE
+ bufsize
);
2179 /* Handle errors: EOT switches to the next volume, other errors
2180 * attempt to position the tape to the next block.
2183 Vprintf(stdout
, "End-of-tape encountered\n");
2192 msg_read_error("Tape read error while");
2193 if (!yflag
&& !reply("continue"))
2195 memset(tapebuf
, 0, PREFIXSIZE
+ bufsize
);
2200 rl
= rmtioctl(MTFSR
, 1);
2206 rl
= ioctl(mt
, MTIOCTOP
, &tcom
);
2210 warn("continuation failed");
2211 if (!yflag
&& !reply("assume end-of-tape and continue"))
2213 ret
= 0; /* end of tape */
2219 memmove(buf
, &tbufptr
[(blkcnt
++ * TP_BSIZE
)], TP_BSIZE
);
2225 * Decompress a struct tapebuf into a buffer. readsize is the size read
2226 * from the tape/file and is used for error messages. Returns a pointer
2227 * to the location of the uncompressed buffer or NULL on errors.
2228 * Adjust numtrec and complain for a short block.
2231 decompress_tapebuf(struct tapebuf
*tpbin
, int readsize
)
2233 /* If zflag is on, all blocks have a struct tapebuf prefix */
2234 /* zflag gets set in setup() from the dump header */
2235 int cresult
, blocklen
;
2236 unsigned long worklen
;
2237 char *output
= NULL
,*reason
= NULL
, *lengtherr
= NULL
;
2239 /* build a length error message */
2240 blocklen
= tpbin
->length
;
2241 if (readsize
< blocklen
+ (int)PREFIXSIZE
)
2242 lengtherr
= "short";
2244 if (readsize
> blocklen
+ (int)PREFIXSIZE
)
2249 if (tpbin
->compressed
) {
2250 /* uncompress whatever we read, if it fails, complain later */
2251 if (tpbin
->flags
== COMPRESS_ZLIB
) {
2253 errx(1,"This restore version doesn't support zlib decompression");
2255 cresult
= uncompress(comprbuf
, &worklen
,
2256 tpbin
->buf
, blocklen
);
2262 reason
= "not enough memory";
2265 reason
= "buffer too small";
2268 reason
= "data error";
2273 if (cresult
== Z_OK
)
2277 #endif /* HAVE_ZLIB */
2279 if (tpbin
->flags
== COMPRESS_BZLIB
) {
2281 errx(1,"This restore version doesn't support bzlib decompression");
2283 unsigned int worklen2
= worklen
;
2284 cresult
= BZ2_bzBuffToBuffDecompress(
2285 comprbuf
, &worklen2
,
2286 tpbin
->buf
, blocklen
, 0, 0);
2293 reason
= "not enough memory";
2295 case BZ_OUTBUFF_FULL
:
2296 reason
= "buffer too small";
2299 case BZ_DATA_ERROR_MAGIC
:
2300 case BZ_UNEXPECTED_EOF
:
2301 reason
= "data error";
2306 if (cresult
== BZ_OK
)
2310 #endif /* HAVE_BZLIB */
2312 if (tpbin
->flags
== COMPRESS_LZO
) {
2314 errx(1,"This restore version doesn't support lzo decompression");
2316 lzo_uint worklen2
= worklen
;
2317 cresult
= lzo1x_decompress(tpbin
->buf
, blocklen
,
2318 comprbuf
, &worklen2
, NULL
);
2325 case LZO_E_EOF_NOT_FOUND
:
2326 reason
= "data error";
2331 if (cresult
== LZO_E_OK
)
2335 #endif /* HAVE_LZO */
2339 output
= tpbin
->buf
;
2343 numtrec
= worklen
/ TP_BSIZE
;
2344 if (worklen
% TP_BSIZE
!= 0)
2345 reason
= "length mismatch";
2349 fprintf(stderr
, "%s compressed block: %d expected: %u\n",
2350 lengtherr
, readsize
, tpbin
->length
+ PREFIXSIZE
);
2351 fprintf(stderr
, "decompression error, block %ld: %s\n",
2352 tpblksread
+1, reason
);
2360 * Print an error message for a read error.
2361 * This was exteracted from the original readtape().
2364 msg_read_error(char *m
)
2366 switch (curfile
.action
) {
2368 fprintf(stderr
, "%s trying to set up tape\n", m
);
2371 fprintf(stderr
, "%s trying to resynchronize\n", m
);
2374 fprintf(stderr
, "%s restoring %s\n", m
, curfile
.name
);
2377 fprintf(stderr
, "%s skipping over inode %lu\n", m
,
2378 (unsigned long)curfile
.ino
);
2382 #endif /* HAVE_ZLIB || HAVE_BZLIB || HAVE_LZO */
2385 * Read the first block and get the blocksize from it. Test
2386 * for a compressed dump tape/file. setup() will make the final
2387 * determination by checking the compressed flag if gethead()
2388 * finds a valid header. The test here is necessary to offset the buffer
2389 * by the size of the compressed prefix. zflag is set here so that
2390 * readtape_set can set the correct function pointer for readtape().
2391 * Note that the first block of each tape/file is not compressed
2392 * and does not have a prefix.
2395 findtapeblksize(void)
2399 struct tapebuf
*tpb
= (struct tapebuf
*) tapebuf
;
2400 struct s_spcl spclpt
;
2402 for (i
= 0; i
< ntrec
; i
++)
2403 ((struct s_spcl
*)&tapebuf
[i
* TP_BSIZE
])->c_magic
= 0;
2407 * For a pipe or file, read in the first record. For a tape, read
2410 len
= magtapein
? ntrec
* TP_BSIZE
: TP_BSIZE
;
2412 if (read_a_block(mt
, tapebuf
, len
, &i
) <= 0)
2413 errx(1, "Tape read error on first record");
2415 memcpy(&spclpt
, tapebuf
, TP_BSIZE
);
2417 if (converthead(&spclpt
) == FAIL
) {
2419 if (converthead(&spclpt
) == FAIL
) {
2420 /* Special case for old compressed tapes with prefix */
2421 if (magtapein
&& (i
% TP_BSIZE
!= 0))
2423 errx(1, "Tape is not a dump tape");
2425 fprintf(stderr
, "Converting to new file system format.\n");
2428 * If the input is from a file or a pipe, we read TP_BSIZE
2429 * bytes looking for a dump header. If the dump is compressed
2430 * we need to read in the rest of the block, as determined
2431 * by c_ntrec in the dump header. The first block of the
2432 * dump is not compressed and does not have a prefix.
2435 if (spclpt
.c_type
== TS_TAPE
2436 && spclpt
.c_flags
& DR_COMPRESSED
) {
2437 /* It's a compressed dump file, read in the */
2438 /* rest of the block based on spclpt.c_ntrec. */
2439 if (spclpt
.c_ntrec
> ntrec
)
2440 errx(1, "Tape blocksize is too large, use "
2441 "\'-b %d\' ", spclpt
.c_ntrec
);
2442 ntrec
= spclpt
.c_ntrec
;
2443 len
= (ntrec
- 1) * TP_BSIZE
;
2447 /* read in the rest of the block based on bufsize */
2448 len
= bufsize
- TP_BSIZE
;
2450 if (read_a_block(mt
, tapebuf
+TP_BSIZE
, len
, &i
) < 0
2451 || (i
!= (long)len
&& i
% TP_BSIZE
!= 0))
2452 errx(1,"Error reading dump file header");
2455 Vprintf(stdout
, "Input block size is %ld\n", ntrec
);
2457 } /* if (!magtapein) */
2460 * If the input is a tape, we tried to read ntrec * TP_BSIZE bytes.
2461 * If the value of ntrec is too large, we read less than
2462 * what we asked for; adjust the value of ntrec and test for
2463 * a compressed dump tape.
2465 if (i
% TP_BSIZE
!= 0) {
2467 /* may be old format compressed dump tape with a prefix */
2468 memcpy(&spclpt
, tpb
->buf
, TP_BSIZE
);
2470 if (converthead(&spclpt
) == FAIL
) {
2472 if (converthead(&spclpt
) == FAIL
)
2473 errx(1, "Tape is not a dump tape");
2474 fprintf(stderr
, "Converting to new file system format.\n");
2476 if (i
% TP_BSIZE
== PREFIXSIZE
2477 && tpb
->compressed
== 0
2478 && spclpt
.c_type
== TS_TAPE
2479 && spclpt
.c_flags
& DR_COMPRESSED
) {
2482 if (tpb
->length
> bufsize
)
2483 errx(1, "Tape blocksize is too large, use "
2484 "\'-b %d\' ", tpb
->length
/ TP_BSIZE
);
2487 errx(1, "Tape block size (%ld) is not a multiple of dump block size (%d)",
2490 ntrec
= i
/ TP_BSIZE
;
2491 if (spclpt
.c_type
== TS_TAPE
) {
2492 if (spclpt
.c_flags
& DR_COMPRESSED
)
2494 if (spclpt
.c_ntrec
> ntrec
)
2495 errx(1, "Tape blocksize is too large, use "
2496 "\'-b %d\' ", spclpt
.c_ntrec
);
2499 Vprintf(stdout
, "Tape block size is %ld\n", ntrec
);
2503 * Read a block of data handling all of the messy details.
2505 static int read_a_block(int fd
, char *buf
, size_t len
, long *lengthread
)
2513 i
= rmtread(buf
, size
);
2516 i
= read(fd
, buf
, size
);
2519 break; /* EOD or error */
2522 break; /* block at a time for mt */
2525 *lengthread
= len
- size
;
2544 setmagtapein(void) {
2545 struct mtget mt_stat
;
2546 static int done
= 0;
2551 /* need to know if input is really from a tape */
2557 magtapein
= ioctl(mt
, MTIOCGET
, (char *)&mt_stat
) == 0;
2560 Vprintf(stdout
,"Input is from a %s %s\n",
2561 host
? "remote" : "local",
2562 magtapein
? "tape" :
2563 Vflag
? "multi-volume (no tape)" : "file/pipe");
2567 * Read the next block from the tape.
2568 * Check to see if it is one of several vintage headers.
2569 * If it is an old style header, convert it to a new style header.
2570 * If it is not any valid header, return an error.
2573 gethead(struct s_spcl
*buf
)
2575 readtape((char *)buf
);
2576 return converthead(buf
);
2580 converthead(struct s_spcl
*buf
)
2588 char dummy
[TP_BSIZE
];
2595 u_int16_t c_inumber
;
2600 u_int16_t odi_nlink
;
2616 if (buf
->c_magic
!= NFS_MAGIC
) {
2617 if (swabi(buf
->c_magic
) != NFS_MAGIC
)
2620 Vprintf(stdout
, "Note: Doing Byte swapping\n");
2624 if (checksum((int *)buf
) == FAIL
)
2627 swabst((u_char
*)"8i4s1l29i528bi192b4i", (u_char
*)buf
);
2630 memcpy(&u_ospcl
.s_ospcl
, buf
, TP_BSIZE
);
2631 if (checksum((int *)(&u_ospcl
.s_ospcl
)) == FAIL
)
2633 if (u_ospcl
.s_ospcl
.c_magic
== OFS_MAGIC
) {
2634 memset((char *)buf
, 0, (long)TP_BSIZE
);
2635 buf
->c_type
= u_ospcl
.s_ospcl
.c_type
;
2636 buf
->c_date
= u_ospcl
.s_ospcl
.c_date
;
2637 buf
->c_ddate
= u_ospcl
.s_ospcl
.c_ddate
;
2638 buf
->c_volume
= u_ospcl
.s_ospcl
.c_volume
;
2639 buf
->c_tapea
= u_ospcl
.s_ospcl
.c_tapea
;
2640 buf
->c_inumber
= u_ospcl
.s_ospcl
.c_inumber
;
2641 buf
->c_checksum
= u_ospcl
.s_ospcl
.c_checksum
;
2642 buf
->c_magic
= u_ospcl
.s_ospcl
.c_magic
;
2643 buf
->c_dinode
.di_mode
= u_ospcl
.s_ospcl
.c_dinode
.odi_mode
;
2644 buf
->c_dinode
.di_nlink
= u_ospcl
.s_ospcl
.c_dinode
.odi_nlink
;
2645 buf
->c_dinode
.di_uid
= u_ospcl
.s_ospcl
.c_dinode
.odi_uid
;
2646 buf
->c_dinode
.di_gid
= u_ospcl
.s_ospcl
.c_dinode
.odi_gid
;
2647 buf
->c_dinode
.di_size
= u_ospcl
.s_ospcl
.c_dinode
.odi_size
;
2648 buf
->c_dinode
.di_rdev
= u_ospcl
.s_ospcl
.c_dinode
.odi_rdev
;
2649 #if defined(__linux__) || defined(sunos)
2650 buf
->c_dinode
.di_atime
.tv_sec
= u_ospcl
.s_ospcl
.c_dinode
.odi_atime
;
2651 buf
->c_dinode
.di_mtime
.tv_sec
= u_ospcl
.s_ospcl
.c_dinode
.odi_mtime
;
2652 buf
->c_dinode
.di_ctime
.tv_sec
= u_ospcl
.s_ospcl
.c_dinode
.odi_ctime
;
2653 #else /* __linux__ || sunos */
2654 buf
->c_dinode
.di_atime
= u_ospcl
.s_ospcl
.c_dinode
.odi_atime
;
2655 buf
->c_dinode
.di_mtime
= u_ospcl
.s_ospcl
.c_dinode
.odi_mtime
;
2656 buf
->c_dinode
.di_ctime
= u_ospcl
.s_ospcl
.c_dinode
.odi_ctime
;
2657 #endif /* __linux__ || sunos */
2658 buf
->c_count
= u_ospcl
.s_ospcl
.c_count
;
2659 memmove(buf
->c_addr
, u_ospcl
.s_ospcl
.c_fill
, (long)256);
2661 else if (u_ospcl
.s_ospcl
.c_magic
== FS_UFS2_MAGIC
) {
2662 buf
->c_date
= (int32_t)(*(int64_t *)&u_ospcl
.dummy
[896]);
2663 buf
->c_ddate
= (int32_t)(*(int64_t *)&u_ospcl
.dummy
[904]);
2664 buf
->c_tapea
= (int32_t)(*(int64_t *)&u_ospcl
.dummy
[912]);
2665 buf
->c_firstrec
= (int32_t)(*(int64_t *)&u_ospcl
.dummy
[920]);
2667 buf
->c_extattributes
= 0;
2668 buf
->c_flags
|= DR_NEWINODEFMT
;
2673 buf
->c_magic
= NFS_MAGIC
;
2676 if ((buf
->c_dinode
.di_size
== 0 || buf
->c_dinode
.di_size
> 0xfffffff) &&
2677 (buf
->c_dinode
.di_mode
& IFMT
) == IFDIR
&& Qcvt
== 0) {
2678 qcvt
.qval
= buf
->c_dinode
.di_size
;
2679 if (qcvt
.val
[0] || qcvt
.val
[1]) {
2680 Vprintf(stdout
, "Note: Doing Quad swapping\n");
2685 qcvt
.qval
= buf
->c_dinode
.di_size
;
2687 qcvt
.val
[1] = qcvt
.val
[0];
2689 buf
->c_dinode
.di_size
= qcvt
.qval
;
2693 switch (buf
->c_type
) {
2698 * Have to patch up missing information in bit map headers
2701 buf
->c_dinode
.di_size
= buf
->c_count
* TP_BSIZE
;
2702 if (buf
->c_count
> TP_NINDIR
)
2705 for (i
= 0; i
< buf
->c_count
; i
++)
2710 if ((buf
->c_flags
& DR_NEWINODEFMT
) == 0)
2715 if (buf
->c_flags
& DR_INODEINFO
) {
2716 memcpy(volinfo
, buf
->c_inos
, TP_NINOS
* sizeof(dump_ino_t
));
2718 swabst((u_char
*)"128i", (u_char
*)volinfo
);
2727 panic("gethead: unknown inode type %d\n", buf
->c_type
);
2731 * If we are restoring a filesystem with old format inodes,
2732 * copy the uid/gid to the new location.
2735 buf
->c_dinode
.di_uid
= buf
->c_dinode
.di_ouid
;
2736 buf
->c_dinode
.di_gid
= buf
->c_dinode
.di_ogid
;
2744 converttapebuf(struct tapebuf
*tpb
)
2748 unsigned int length
:28;
2749 unsigned int flags
:3;
2750 unsigned int compressed
:1;
2752 swabst((u_char
*)"i", (u_char
*)tpb
);
2753 memcpy(&tb
, tpb
, 4);
2754 tpb
->length
= tb
.length
;
2755 tpb
->flags
= tb
.flags
;
2756 tpb
->compressed
= tb
.compressed
;
2761 * Check that a header is where it belongs and predict the next header
2764 accthdr(struct s_spcl
*header
)
2766 static dump_ino_t previno
= 0x7fffffff;
2767 static int prevtype
;
2768 static long predict
;
2771 if (header
->c_type
== TS_TAPE
) {
2772 fprintf(stderr
, "Volume header (%s inode format) ",
2773 oldinofmt
? "old" : "new");
2774 if (header
->c_firstrec
)
2775 fprintf(stderr
, "begins with record %d",
2776 header
->c_firstrec
);
2777 fprintf(stderr
, "\n");
2778 previno
= 0x7fffffff;
2781 if (previno
== 0x7fffffff)
2785 fprintf(stderr
, "Dumped inodes map header");
2788 fprintf(stderr
, "Used inodes map header");
2791 fprintf(stderr
, "File header, ino %lu", (unsigned long)previno
);
2794 fprintf(stderr
, "File continuation header, ino %ld", (long)previno
);
2797 fprintf(stderr
, "End of tape header");
2800 if (predict
!= blksread
- 1)
2801 fprintf(stderr
, "; predicted %ld blocks, got %ld blocks",
2802 predict
, blksread
- 1);
2803 fprintf(stderr
, "\n");
2806 if (header
->c_type
!= TS_END
)
2807 for (i
= 0; i
< header
->c_count
; i
++)
2808 if (readmapflag
|| header
->c_addr
[i
] != 0)
2812 prevtype
= header
->c_type
;
2813 previno
= header
->c_inumber
;
2817 * Find an inode header.
2818 * Complain if had to skip, and complain is set.
2821 findinode(struct s_spcl
*header
)
2823 static long skipcnt
= 0;
2827 curfile
.name
= "<name unknown>";
2828 curfile
.action
= UNKNOWN
;
2832 if (header
->c_magic
!= NFS_MAGIC
) {
2834 while (gethead(header
) == FAIL
||
2835 header
->c_date
!= dumpdate
)
2838 switch (header
->c_type
) {
2842 * Skip up to the beginning of the next record
2844 for (i
= 0; i
< header
->c_count
; i
++)
2845 if (header
->c_addr
[i
])
2847 while (gethead(header
) == FAIL
||
2848 header
->c_date
!= dumpdate
)
2853 curfile
.dip
= &header
->c_dinode
;
2854 curfile
.ino
= header
->c_inumber
;
2858 curfile
.ino
= maxino
;
2862 curfile
.name
= "<file removal list>";
2866 curfile
.name
= "<file dump list>";
2870 panic("unexpected tape header\n");
2874 panic("unknown tape header type %d\n", spcl
.c_type
);
2878 } while (header
->c_type
== TS_ADDR
);
2883 fprintf(stderr
, "resync restore, skipped %ld blocks\n",
2893 j
= sizeof(union u_spcl
) / sizeof(int);
2900 /* What happens if we want to read restore tapes
2901 for a 16bit int machine??? */
2907 if (i
!= CHECKSUM
) {
2908 fprintf(stderr
, "Checksum error %o, inode %lu file %s\n", i
,
2909 (unsigned long)curfile
.ino
, curfile
.name
);
2919 #include <varargs.h>
2924 msg(const char *fmt
, ...)
2937 (void)vfprintf(stderr
, fmt
, ap
);
2940 #endif /* RRESTORE */
2943 swab16(u_char
*sp
, int n
)
2948 c
= sp
[0]; sp
[0] = sp
[1]; sp
[1] = c
;
2955 swab32(u_char
*sp
, int n
)
2960 c
= sp
[0]; sp
[0] = sp
[3]; sp
[3] = c
;
2961 c
= sp
[1]; sp
[1] = sp
[2]; sp
[2] = c
;
2968 swab64(u_char
*sp
, int n
)
2973 c
= sp
[0]; sp
[0] = sp
[7]; sp
[7] = c
;
2974 c
= sp
[1]; sp
[1] = sp
[6]; sp
[6] = c
;
2975 c
= sp
[2]; sp
[2] = sp
[5]; sp
[5] = c
;
2976 c
= sp
[3]; sp
[3] = sp
[4]; sp
[4] = c
;
2983 swabst(u_char
*cp
, u_char
*sp
)
2989 case '0': case '1': case '2': case '3': case '4':
2990 case '5': case '6': case '7': case '8': case '9':
2991 n
= (n
* 10) + (*cp
++ - '0');
2994 case 's': case 'w': case 'h':
3012 default: /* Any other character, like 'b' counts as byte. */
3026 swabst((u_char
*)"i", (u_char
*)&x
);
3034 swabst((u_char
*)"l", (u_char
*)&x
);
3040 RequestVol(long tnum
)
3051 int uscsi_flags
; /* read, write, etc. see below */
3052 short uscsi_status
; /* resulting status */
3053 short uscsi_timeout
; /* Command Timeout */
3054 caddr_t uscsi_cdb
; /* cdb to send to target */
3055 caddr_t uscsi_bufaddr
; /* i/o source/destination */
3056 u_int uscsi_buflen
; /* size of i/o to take place */
3057 u_int uscsi_resid
; /* resid from i/o operation */
3058 u_char uscsi_cdblen
; /* # of valid cdb bytes */
3059 u_char uscsi_rqlen
; /* size of uscsi_rqbuf */
3060 u_char uscsi_rqstatus
; /* status of request sense cmd */
3061 u_char uscsi_rqresid
; /* resid of request sense cmd */
3062 caddr_t uscsi_rqbuf
; /* request sense buffer */
3063 void *uscsi_reserved_5
; /* Reserved for Future Use */
3066 #define CDB_GROUP0 6 /* 6-byte cdb's */
3067 #define CDB_GROUP1 10 /* 10-byte cdb's */
3068 #define CDB_GROUP2 10 /* 10-byte cdb's */
3069 #define CDB_GROUP3 0 /* reserved */
3070 #define CDB_GROUP4 16 /* 16-byte cdb's */
3071 #define CDB_GROUP5 12 /* 12-byte cdb's */
3072 #define CDB_GROUP6 0 /* reserved */
3073 #define CDB_GROUP7 0 /* reserved */
3075 #define USCSI_WRITE 0x00000 /* send data to device */
3076 #define USCSI_SILENT 0x00001 /* no error messages */
3077 #define USCSI_DIAGNOSE 0x00002 /* fail if any error occurs */
3078 #define USCSI_ISOLATE 0x00004 /* isolate from normal commands */
3079 #define USCSI_READ 0x00008 /* get data from device */
3080 #define USCSI_RESET 0x04000 /* Reset target */
3081 #define USCSI_RESET_ALL 0x08000 /* Reset all targets */
3082 #define USCSI_RQENABLE 0x10000 /* Enable Request Sense extensions */
3084 #define USCSIIOC (0x04 << 8)
3085 #define USCSICMD (USCSIIOC|201) /* user scsi command */
3087 #define USCSI_TIMEOUT 30
3088 #define USCSI_SHORT_TIMEOUT 900
3089 #define USCSI_LONG_TIMEOUT 14000
3091 #define B(s,i) ((unsigned char)((s) >> i))
3092 #define B1(s) ((unsigned char)(s))
3094 #define MSB4(s,v) *(s)=B(v,24),(s)[1]=B(v,16), (s)[2]=B(v,8), (s)[3]=B1(v)
3098 GetTapePos(long long *pos
)
3101 struct uscsi_cmd scmd
;
3106 (void)memset((void *)buf
, 0, sizeof(buf
));
3107 (void)memset((void *)&scmd
, 0, sizeof(scmd
));
3108 scmd
.uscsi_flags
= USCSI_READ
|USCSI_SILENT
;
3109 scmd
.uscsi_timeout
= USCSI_TIMEOUT
;
3110 scmd
.uscsi_cdb
= buf
;
3111 scmd
.uscsi_cdblen
= CDB_GROUP1
;
3112 buf
[0] = 0x34; /* read position */
3114 (void)memset((void *)parm
, 0, 512);
3115 scmd
.uscsi_bufaddr
= parm
;
3116 scmd
.uscsi_buflen
= 56;
3117 if (ioctl(fdsmtc
, USCSICMD
, &scmd
) == -1) {
3121 (void)memcpy(&lpos
, &parm
[4], sizeof(long));
3127 GotoTapePos(long long pos
)
3130 struct uscsi_cmd scmd
;
3133 long lpos
= (long)pos
;
3135 (void)memset((void *)buf
, 0, sizeof(buf
));
3136 (void)memset((void *)&scmd
, 0, sizeof(scmd
));
3137 scmd
.uscsi_flags
= USCSI_WRITE
|USCSI_SILENT
;
3138 scmd
.uscsi_timeout
= 360; /* 5 Minutes */
3139 scmd
.uscsi_cdb
= buf
;
3140 scmd
.uscsi_cdblen
= CDB_GROUP1
;
3141 buf
[0] = 0x2b; /* locate */
3143 MSB4(&buf
[3], lpos
);
3144 (void)memset((void *)parm
, 0, 512);
3145 scmd
.uscsi_bufaddr
= NULL
;
3146 scmd
.uscsi_buflen
= 0;
3147 if (ioctl(fdsmtc
, USCSICMD
, &scmd
) == -1) {
3155 #define LSEEK_GET_TAPEPOS 10
3156 #define LSEEK_GO2_TAPEPOS 11
3159 typedef struct mt_pos
{
3162 } MTPosRec
, *MTPosPtr
;
3166 * get the current position of the tape
3169 GetTapePos(long long *pos
)
3175 *pos
= (long long) rmtseek((OFF_T
)0, (int)LSEEK_GET_TAPEPOS
);
3184 err
= (ioctl(mt
, MTIOCPOS
, &mtpos
) < 0);
3185 *pos
= (long long)mtpos
;
3188 *pos
= LSEEK(mt
, 0, SEEK_CUR
);
3194 fprintf(stdout
, "[%ld] error: %d (getting tapepos: %lld)\n",
3195 (unsigned long)getpid(), err
, *pos
);
3202 * go to specified position on tape
3205 GotoTapePos(long long pos
)
3211 err
= (rmtseek((OFF_T
)pos
, (int)LSEEK_GO2_TAPEPOS
) < 0);
3218 buf
.mt_count
= (int) pos
;
3219 err
= (ioctl(mt
, MTIOCTOP
, &buf
) < 0);
3222 pos
= LSEEK(mt
, pos
, SEEK_SET
);
3228 fprintf(stdout
, "[%ld] error: %d (setting tapepos: %lld)\n",
3229 (unsigned long)getpid(), err
, pos
);
3234 #endif /* __linux__ */
3237 * read next data from tape to re-sync
3240 ReReadFromTape(void)
3244 if (gethead(&spcl
) == FAIL
) {
3246 fprintf(stdout
, "DEBUG 1 gethead failed\n");
3254 ReReadInodeFromTape(dump_ino_t theino
)
3263 } while (!(spcl
.c_inumber
== theino
&& spcl
.c_type
== TS_INODE
&& spcl
.c_date
== dumpdate
));
3265 fprintf(stderr
, "DEBUG: %ld reads\n", cntloop
);
3266 fprintf(stderr
, "DEBUG: bufsize %ld\n", bufsize
);
3267 fprintf(stderr
, "DEBUG: ntrec %ld\n", ntrec
);
3268 fprintf(stderr
, "DEBUG: %ld reads\n", cntloop
);
3276 OpenSMTCmt(char *themagtape
)
3278 if (GetSCSIIDFromPath(themagtape
, &scsiid
)) {
3279 fprintf(stderr
, "can't get SCSI-ID for %s\n", themagtape
);
3283 fprintf(stderr
, "can't get SCSI-ID for %s\n", themagtape
);
3286 sprintf(smtcpath
, "/dev/rsmtc%ld,0", scsiid
);
3287 if ((fdsmtc
= open(smtcpath
, O_RDWR
)) == -1) {
3288 fprintf(stderr
, "can't open smtc device: %s, %d\n", smtcpath
, errno
);
3294 #endif /* USE_QFA */