Emit warnings not panic() when comparing a file and we don't have enough priviledges...
[dump.git] / CHANGES
1 $Id: CHANGES,v 1.270 2005/01/24 10:32:01 stelian Exp $
2
3 Changes between versions 0.4b39 and 0.4b40 (released ????????????????)
4 ======================================================================
5
6 1. Changed restore to emit warnings (instead of emitting a fatal
7 error) if a file (or a directory) is unavailable for a
8 comparision (if the user doesn't have the necessary permissions
9 to access it for example). Thanks to Kenneth Porter
10 <shiva@sewingwitch.com> for the bug report.
11
12 Changes between versions 0.4b38 and 0.4b39 (released January 21, 2005)
13 ======================================================================
14
15 1. The newly added dump_on_cd_3 example was buggy, replace it
16 with an updated version from Andrew Basterfield
17 <bob@cemetery.homeunix.org>.
18
19 2. Made restore to chdir() back into the initial directory when
20 dumping core while aborting a comparision operation. The
21 previous behaviour was to write the corefile at the root of
22 the directory being compared, which could very well be
23 read only and preventing the corefile generation. Thanks
24 to Kenneth Porter <shiva@sewingwitch.com> for the bug report.
25
26 3. Silenced the failure to call fgetflags() when comparing an
27 entry which has no ext2 attributes (as in lsattr()).
28
29 4. Fix a brown paper bug in restore -C which broke restore and
30 caused modifications on the filesystem being compared
31 (directories containing a file with the same name as the
32 directory get renamed to RSTTMP...). Thanks to Kenneth Porter
33 <shiva@sewingwitch.com> for finding the bug and helping me
34 reproduce it.
35
36 5. Made restore -C force the -N flag (no writing allowed on
37 the disk) in order to prevent more bugs like the above one.
38
39 Changes between versions 0.4b37 and 0.4b38 (released January 7, 2005)
40 =====================================================================
41
42 1. Fix a couple of troff syntax bugs in the man pages.
43 Thanks to Eric Raymond <esr@thyrsus.com> for the patch.
44
45 2. Made restore use either libncurses or libtermcap, depending
46 on which one is available at configure time.
47
48 3. Fixed restore negative size display bug when comparing a
49 dump containing files over 2GB. Thanks to Steve Bonds
50 <sbonds@users.sourceforge.net> for the bug report.
51
52 4. Do not save directory entries to non-dumped inodes
53 (excluded from dump). This will eliminate the 'missing
54 file' warnings when doing 'restore -C'.
55
56 5. Fix dump crash when backuping a huge (2TB) filesystem,
57 due to a bogus calculation on the inode map size.
58 Thanks to Kevin B. Haines <K.B.Haines@rl.ac.uk> for
59 submitting the bug and testing the fix.
60
61 6. Fix a problem in restore where the final \0 in the symbolic
62 link names could have been lost, generating corrupt filenames.
63 Thanks to Kyle Wilson <kyle.wilson@amd.com> for reporting the
64 bug.
65
66 7. Implemented a hash list for the directory names in restore.
67 The linear list used before caused problems in interactive
68 restores when dealing with directories having thousands of
69 entries. Thanks to Brian Ristuccia <bristuccia@starentnetworks.com>
70 for reporting the bug.
71
72 8. Improved restore -C, this time including the directory
73 attributes into the comparision.
74
75 9. Made restore understand tapes containing EA/ACLs (which will
76 be dumped by the next version of dump). In this version
77 extended attributes on the tape are ignored, for full EA/ACL
78 support wait for the next version or try the experimental EA
79 patch.
80
81 Changes between versions 0.4b36 and 0.4b37 (released July 7, 2004)
82 ==================================================================
83
84 1. Added the --enable-staticz configure option which enables
85 dump and restore to be linked with static versions of
86 libz and libbz2 (and dynamic versions of all other libraries).
87 This will make Debian users happy, because libz and libbz2
88 were the only needed libraries living in /usr, all the
89 others live in /lib. In case of system emergency, it is
90 better not to have to rely on an extra filesystem.
91 Thanks to Bdale Garbee <bdale@gag.com> for the suggestion.
92
93 2. Fix compilation on (at least the Linux Debian port to) AMD64.
94 (<ext2fs/ext2_types.h> defines some types (__s64 and __u64)
95 that are also defined by <linux/types.h> (<asm/types.h>) and
96 they conflict).
97
98 3. Make dump's reading of the dumpdates file a bit more robust,
99 preventing dump from crashing when the dumpdates file has
100 been modified by hand.
101
102 4. Fixed some offset calculations in dump code which could
103 lead to "bread lseek errors" on large filesystems. Thanks
104 to Bruce Lowekamp <lowekamp@users.sourceforge.net> for
105 reporting this bug and debugging the issue.
106
107 5. Made dump use the blkid library when searching for devices
108 by label or uuid instead of dump's own routines.
109
110 6. Corrected a bug in dump where a wrong LABEL=... line in
111 /etc/fstab could prevent dump from dumping unrelated
112 filesystems. Thanks to Bruce Lowekamp
113 <lowekamp@users.sourceforge.net> for reporting the bug.
114
115 Changes between versions 0.4b35 and 0.4b36 (released April 21, 2004)
116 ====================================================================
117
118 1. Fixed dump compilation with old gcc versions. Thanks to
119 Mike Castle <dalgoda@users.sourceforge.net> for the patch.
120
121 2. Fixed some warnings (howmany, roundup, powerof2 redefined)
122 when compiling against a recent glibc version.
123
124 3. Fixed a bug in restore preventing the read of a dump tape
125 written with Solaris 7 ufsdump. Thanks to Patrick Higgins
126 <phiggins@transzap.com> for reporting the bug and providing
127 the test case.
128
129 4. Changed dump to enable the creation of volumes of different
130 sizes in a single run (make -B accept a list of values).
131 Patch contributed by Florian Zumbiehl <florz@gmx.de>.
132
133 5. Use the glibc provided minor() and major() macros instead
134 of our own bitmask implementation. This should be safe for
135 when the major/minor namespace will migrate to 32 bits.
136 Thanks to Zhang Jun <zhangjun@nanjing-fnst.com> for reporting
137 the bug.
138
139 6. Made explicit in the dump man page that dump will not create
140 a remote file, it will only write to an already existing one.
141
142 7. Another try at making size estimates better again.
143
144 8. Put back the inconditional running of the end-of-tape
145 script which was changed in 0.434 to be run only when -M
146 or multiple -f were NOT specified. Some users rely on this
147 feature even when it is combined with -M/-f.
148
149 9. Fixed restore when restoring huge backups (where rstdir...
150 temporary files are over 2GB). Thanks to
151 Raphael Jaffey <rjaffey@artic.edu> for reporting this,
152 debugging the issue and making the patch.
153
154 10. Made restore understand FreeBSD UFS2 tapes. Thanks to
155 David <vrtin@users.sourceforge.net> for submitting the bug
156 and providing a test case.
157
158 11. Made dump work with an arbitrary integer level (no more 10
159 levels only limitation). Thanks to Matthew
160 <msvincen@midway.uchicago.edu> for the patch.
161
162 Changes between versions 0.4b34 and 0.4b35 (released December 21, 2003)
163 =======================================================================
164
165 1. Added a note in the dump man page saying that the default
166 blocksize can be 32 if -d is used with a high density argument.
167 Thanks to Antonios Christofides <A.Christofides@itia.ntua.gr>
168 for the patch.
169
170 2. Fixed configure to correctly understand CPPFLAGS, CFLAGS,
171 LDFLAGS environment variables. Thanks to Arcady Genkin
172 <antipode@users.sourceforge.net> for reporting the bug.
173
174 3. Made -e/-E options of dump accept an unlimited number of inodes
175 to be excluded, rather than a hardcoded maximum. Thanks to
176 Dietrich Rothe <d-rothe@users.sourceforge.net> for the patch.
177
178 4. Updated the autoconf system to 2.50. Forced the -D_BSD_SOURCE
179 and -D_USE_BSD_SIGNAL defines in configure in order to solve
180 64bit build problems because quad_t is redifined with a
181 different signature. Thanks to Mike Harris <mharris@redhat.com>
182 for reporting this bug.
183
184 5. Made restore build on Solaris, making possible to
185 restore Linux's "enhanced" tapes. Thanks to Uwe Gohlke
186 <uwe@ugsoft.de> for the patch.
187
188 6. Made an extension in the dump tape format capable of saving
189 MacOSX specific inode extensions. Uwe Gohlke <uwe@ugsoft.de>
190 wrote the extension and contributed the restore code back
191 into this codebase. The same extension mechanism will be
192 used in the future to save ACLs...
193
194 7. Made rmt work correctly with regard to QFA and local/remote
195 files and tapes. The remote access will however work only
196 when the dump provided rmt version is used. If you want to
197 use another rmt server, please do not use the QFA feature.
198 Thanks to Uwe Gohlke <uwe@ugsoft.de> for the patch.
199
200 Changes between versions 0.4b33 and 0.4b34 (released April 18, 2003)
201 ====================================================================
202
203 1. Fixed the INSTALL file to reflect the actual install paths.
204 Thanks to David Ronis <ronis@ronispc.chem.mcgill.ca> for
205 reporting the bug.
206
207 2. Fixed the configure script to only check for headers presence
208 instead of trying to compile them. This should fix issues
209 with old build environments. Thanks to Kari Lempiainen
210 <kari@funky.pp.fi> for reporting the bug.
211
212 3. Fixed restore to correctly ignore sockets when comparing
213 a dump (as socket cannot be properly restored anyway). Thanks
214 to Gunther Reiszig <gunther@mit.edu> for reporting the bug.
215
216 4. Fixed restore to correctly access the archive file (-A argument)
217 even when using a remote tape. Thanks to Fabrice Bellet
218 <fabrice@bellet.info> for reporting the bug.
219
220 5. Fixed (again) handling of long (largefile) seeks in rmt.
221 Thanks to Fabrice Bellet <fabrice@bellet.info> for reporting
222 the bug.
223
224 6. Fixed restore corner case when dealing with large block sizes
225 dump is able to write now (-b 1024). Thanks to Fabrice Bellet
226 <fabrice@bellet.info> for reporting the bug.
227
228 7. Fixed a bug preventing dump to access a filesystem having
229 a label exactly 16 bytes in length. Thanks to <minduni@ti-edu.ch>
230 for reporting the bug.
231
232 8. Made dump store dump dates using explicit timezones, fixing a
233 problem with incremental dumps if the timezone is modified
234 between the dumps. Thanks to Philippe Troin <phil@fifi.org> for
235 the bug report and the patch.
236
237 9. Fixed a bug encountered when dumping individual files (not full
238 filesystems or directories) and dangling symbolic links happen
239 to be in the list of files. For as far as dump is concerned,
240 dangling symbolic links are allowed, and are dumped as is.
241 Thanks to Jin-su Ahn <jsahn@ee.snu.ac.kr> for reporting the
242 bug and providing the fix.
243
244 10. Fixed open and creation modes and permissions for QFA and
245 table-of-contents files in dump and restore. Thanks to
246 Philippe Troin <phil@fifi.org> for the patch.
247
248 11. Fixed the archive file descriptor handling enabling it to be 0.
249 This can happen in some cases when shell redirections are used.
250 Thanks to Philippe Troin <phil@fifi.org> for the patch.
251
252 12. Delayed the opening of archive file until after suid had been
253 dropped (fixing a possible security issue if dump is suid).
254 Thanks to Philippe Troin <phil@fifi.org> for the patch.
255
256 13. Fixed the 'S' command handling in the rmt client part.
257 Thanks to Philippe Troin <phil@fifi.org> for the patch.
258
259 14. Modified the end-of-tape script handling to print out statistics
260 (and stop the timer) before launching the eot script. Also, the eot
261 script does not get run anymore when using -M (which makes sense) or
262 when multiple tapes are listed on the command line
263 (-f tape0,tape1,tapen) (which also makes sense).
264 Thanks to Philippe Troin <phil@fifi.org> for the patch.
265
266 15. Relicensed dump/restore under the 'revised' BSD license, as per
267 ftp://ftp.cs.berkeley.edu/ucb/4bsd/README.Impt.License.Change.
268
269 16. Added LZO compression to dump. This new compression method has
270 the advantage of being super fast, thus not killing tape streaming
271 on slow machines. Thanks to Helmut Jarausch
272 <jarausch@igpm.rwth-aachen.de> for the patch and to
273 Markus Oberhumer <markus@oberhumer.com> for giving special permission
274 to include his miniLZO project (GPL licensed) in dump/restore.
275
276 17. Some small buffer overruns fixes in rmt. Thanks to Antonomasia
277 <ant@notatla.demon.co.uk> for reporting the bugs.
278
279 18. Added a special rmt version which can do encryption when writing
280 to tape. Read examples/encrypted_rmt/README for details on
281 how to enable and configure it. Thanks to Ken Lalonde
282 <ken@globalremit.com> for the patch.
283
284 19. Made dump work with 2.5 kernel end of tape early warning semantics.
285 Thanks to Kai Makisara <Kai.Makisara@kolumbus.fi> for the patch.
286
287 20. Fixed a bug which caused dump -w|-W not to work anymore, because
288 the fs_freq and fs_passno fields in /etc/mtab are always set
289 to 0 0. Thanks to Trent Piepho <xyzzy@speakeasy.org> for
290 reporting the bug.
291
292 Changes between versions 0.4b32 and 0.4b33 (released February 10, 2003)
293 =======================================================================
294
295 1. Added a note in the restore man page clarifying the question
296 'set the permissions on the current directory ?' asked by
297 restore at the end of treatment in -i and -x modes.
298
299 2. Fixed the endianess issues when reading compressed tapes.
300 Thanks to Dark Force <daq4th@users.sourceforge.net> for
301 reporting this bug and providing test cases.
302
303 3. Fixed the "ACL won't be dumped" warning message (which showed
304 an extra, unrelated error message). Thanks to Dragan Krnic
305 <dkrnic@lycos.com> for reporting this bug.
306
307 4. Made dump look first into /etc/mtab, then into /etc/fstab
308 when searching for filesystem paths. Also fixed some problems
309 caused by binding mounts or multiple block device mounts.
310 Thanks to Matus Uhlar <uhlar@fantomas.sk>, Elliott Mitchell
311 <ehem@m5p.com>, Greg Edwards <gedwards@users.sourceforge.net>,
312 Brian Hoy <brian.hoy@opus.co.nz>. (fixes Debian bugs #147086
313 and #160305, Sourceforge bugs #618699 and #679832).
314
315 5. Made dump's -I option accept the value '0' meaning all the
316 read errors will be ignored. This can be useful when running
317 dump from unattended sessions (like cron jobs). Thanks to
318 John I Wang <jiwang@users.sourceforge.net> for the suggestion.
319
320 6. Fixed the output of dump to indicate 'blocks' instead of
321 'tape blocks' in the various messages (blocks are always
322 1 Kilobyte, tape blocks are 1 BK * '-b' argument), and
323 made it clearly print the current blocksize at the start of
324 a dump. Thanks to Michal Szymanski <msz@astrouw.edu.pl> for
325 the suggestions.
326
327 7. Made rmt understand long (largefiles) seeks.
328
329 8. Fixed build with very old versions of libext2fs, where
330 EXT2_FT_* constants were undefined.
331
332 9. Made dump accept the dumpdates path on the command line
333 (-D file option) instead of using only the hardcoded one.
334 Thanks to Piete Brooks <pb22@users.sourceforge.net> for the
335 suggestion.
336
337 10. Enabled rmt, LFS, readline, QFA options by default in
338 ./configure. Updated the configure process (new versions
339 of config.guess, config.sub etc).
340
341 Changes between versions 0.4b31 and 0.4b32 (released November 15, 2002)
342 =======================================================================
343
344 1. Changed dump to use fcntl(F_SETLK) style locking instead
345 of flock() when locking the dumpdates file. With the old
346 locking scheme, a local user having read rights on the
347 dumpdates file could be able to do a Denial of Service attack
348 on dump. In order to lock the dumpdates file with the new
349 scheme, the user would need to have write access on the file.
350 Thanks to Richard Johnson <Richard.Johnson3@ey.com> for
351 reporting the bug (originally a bugtraq post).
352
353 2. Fixed interactive 'ls' which caused spurious errors warnings
354 about 'undefined filetypes' detected. Thanks to Jorgen Ostling
355 <jorgen_ostling@users.sourceforge.net> for reporting this
356 bug.
357
358 3. Fixed dump's estimate when dealing with sparse inodes.
359
360 4. Modified dump to allow setting a blocksize bigger than 32kB
361 (raised the limit to 1024kB), because newer hardware needs
362 this for proper operation. Thanks to Dirk Traenapp
363 <dtraenapp@users.sourceforge.net> for reporting this.
364
365 5. Fixed a bug causing Dump to stop and report an error if an
366 inode number in the exclude file was followed by some amount
367 of whitespace. Thanks to Jeffrey Sofferin
368 <sofferin@users.sourceforge.net> for reporting this bug.
369
370 6. Fixed a bug which caused restore, in some particular cases,
371 to ask some 'scary' questions and leave a bunch of RSTTMP
372 directories behind when restoring incremental tapes. Thanks
373 to Philippe Troin <phil@fifi.org> for reporting this bug and
374 providing the test cases.
375
376 7. Changed the wording when inodes are excluded from dump:
377 replaced 'Added inode 7 to exclude list' with
378 'Excluding inode 7 (resize inode) from dump', as suggested
379 by Elliott Mitchell <ehem@m5p.com> in a Debian bug report.
380
381 Changes between versions 0.4b30 and 0.4b31 (released July 30, 2002)
382 ===================================================================
383
384 1. Fixed rmt open flags transmission (GNU's symbolic syntax over
385 rmt) which I broke in 0.4b29. Thanks to Eros Albertazzi
386 <eros@lamel.bo.cnr.it> for reporting the bug.
387
388 Changes between versions 0.4b29 and 0.4b30 (released July 25, 2002)
389 ===================================================================
390
391 1. Made dump print out the ext2 logical block number in case of a read
392 error, which can be given as an argument to debugfs' ncheck command,
393 in order to find out the affected inode. Added note about this
394 usage in dump's man page.
395
396 2. Fixed a problem in restore when reading tapes written on big
397 endian machines with very old versions of dump. The patch was
398 contributed by George Helffrich <george@geology.bristol.ac.uk>.
399
400 3. Fixed the tape length calculation when using large tapes
401 and compression. Thanks to Georg Lippold
402 <g_lippold@sourceforge.net> for reporting the bug.
403
404 4. Added a new set of examples in dump_on_cd_2 directory, based
405 on dump_on_cd examples but somewhat enhanced, supporting DVD
406 media, and localized in english and german. Thanks to
407 Georg Lippold <g_lippold@sourceforge.net> for the new scripts.
408
409 5. Made dump save 32 bit UID/GID. Internally, this was achieved
410 by switching from the old BSD inode format to the new BSD
411 inode format, which means that the tape format was changed.
412 However, since all restore versions out there should
413 transparently support both inode formats, the change should
414 have no side effects. Thanks to John Yu <jky@cs.bu.edu> for
415 reporting the bug.
416
417 6. Fixed a lot of warnings in the code shown when compiling
418 with 'gcc -W'. Thanks to Matthias Andree
419 <matthias.andree@stud.uni-dortmund.de> for reporting this.
420
421 7. Fixed a small markup bug in the dump man page. Thanks to
422 Eric S. Raymond <esr@minx.thyrsus.com> for submitting the
423 patch.
424
425 8. Rewrote entirely the man pages using the tmac.an macro
426 package (Linux man page format) instead of the original BSD
427 format. They should be now cleaner and easier to modify.
428
429 Changes between versions 0.4b28 and 0.4b29 (released June 8, 2002)
430 ==================================================================
431
432 1. Fixed a problem in the rmt ioctl command, where ioctl's issued from
433 non Linux clients were misinterpreted. The description of the problem
434 (incompatible numbering in Linux mtio opcodes) is documented at
435 ftp://ftp.fokus.gmd.de/pub/unix/star/README.mtio . Thanks to
436 Jörg Schilling <schilling@fokus.gmd.de> for reporting this bug and
437 providing an excellent, cross-platform replacement for rmt in his
438 star package.
439
440 2. Fixed a bug reported by Andy Mentges <amentges@jumpline.com>
441 which caused restore to fail when the inode maps were not entirely
442 contained on the first volume (when using really small volumes or
443 when dumping a huge number of inodes).
444
445 3. Fixed a problem in dump, where files in subdirectories of directories
446 that have the nodump flag set (or being excluded with -e/-E) were
447 sometimes incorrectly dumped (instead of being excluded). The original
448 fix is from David C Lawrence <tale@dd.org> in the FreeBSD version
449 of dump: http://www.FreeBSD.org/cgi/query-pr.cgi?pr=32414
450 Thanks to Ted Grzesik <tedgyz@roostme.com> for reporting the bug and
451 help testing the patch.
452
453 4. Added some example scripts from Gerd Bavendiek <bav@epost.de>
454 which makes one able to pipe the output of dump, by the net, to
455 a remote CD-burner server.
456
457 5. Made dump use O_CREAT|O_TRUNC both locally and remotely (over rmt),
458 and use GNU's symbolic syntax over rmt instead of numerical values
459 to assure multiple platform compatibility.
460
461 6. Documented the -d option in restore.
462
463 7. Added a -v (verbose) mode to dump. For now it just prints the number
464 of the inode being dumped, but this could evolve in future versions
465 to include interesting debugging output.
466
467 8. Added a -o flag to restore, which automatically restores the current
468 directory permissions in -i or -x mode, without asking the operator
469 whether to do so. Patch submitted by Tony Clayton <tonyc@e-smith.com>
470 and Peter Samuel <peters@e-smith.com>.
471
472 Changes between versions 0.4b27 and 0.4b28 (released April 12, 2002)
473 ====================================================================
474
475 1. Fixed a bug in the QFA feature which could have caused
476 a bad tape positionning on restore (causing extra delays in
477 restore). Credits go to Uwe Gohlke <uwe@ugsoft.de>.
478
479 2. Added a small note in the dump man page specifying that
480 there should be no white space between the option letter and
481 the -j or -z parameter, thanks to Kenneth Porter <shiva@well.com>
482
483 3. Made restore work with older versions of the readline library,
484 by checking in configure for several extended symbols. Restore
485 can now be compiled with a readline as old as the 2.0 release
486 (though it may be a good idea to upgrade it to a more recent
487 version...). Thanks to Andrew Donkin <ard@waikato.ac.nz> for
488 reporting the build failures.
489
490 4. Fixed a performance problem with the QFA file creation in
491 dump, which made unnecessary seeks on the tape slowing down
492 the dump. Thanks to Andrew Donkin <ard@waikato.ac.nz> for
493 reporting this issue.
494
495 5. Removed the inclusion of some kernel headers in the dump
496 source, which prevented the compile in some kernel/glibc
497 headers/architecture combination. Thanks to Bdale Garbee
498 <bdale@gag.com> for reporting the bug.
499
500 6. Added the appropriate error message when dump fails to
501 open the output file for writing. Thanks to Amith Varghese
502 <amithv@yahoo.com> for reporting this bug.
503
504 7. Made restore able to understand large Solaris ufsdump tapes
505 (containing inodes bigger than 4194304). Sun have introduced
506 an "extension" to the dump tape format when dealing with
507 those inodes, which was uncorrectly handled by Linux restore.
508 Thanks to Uwe Gohlke <uwe@ugsoft.de> for reporting the bug and
509 providing a test case.
510
511 8. Added the -m parameter to dump which optimises the output for
512 inodes having been changed but not modified since the last dump
513 ('changed' and 'modified' have the meaning defined in stat(2)).
514 For those inodes, dump will save only the metadata, instead of
515 saving the entire inode contents. Inodes which are either
516 directories or have been modified since the last dump are saved
517 in a regular way. Uses of this flag must be consistent, meaning
518 that either every dump in an incremental dump set have the flag,
519 or no one has it.
520
521 Changes between versions 0.4b26 and 0.4b27 (released February 15, 2002)
522 =======================================================================
523
524 1. Fixed behaviour of dump when exceeding resource limits
525 (SIGXFSZ treatment).
526
527 2. Added the -L flag to restore to allow the user to specify a
528 maximal allowed number of miscompares when using restore
529 with the -C option to check the backup.
530
531 3. Detailed the manual entry for the -N option of restore.
532
533 4. Added the -a flag to restore to make able doing unattended
534 restores in -i or -x mode (automatically walks through the
535 multiple dump volumes).
536
537 5. Extended the QFA mode to work with local files and/or
538 remote tapes and files. This way, restore can know in advance
539 the tape number and the offset for the inodes to extract and
540 can minimize the extraction time by seeking directly to the
541 good tape/offset.
542
543 6. Added the -A <archive> option to both dump and restore,
544 which makes dump to archive a dump table-of-contents in
545 the specified file to be used by restore to determine
546 whether a file is in the dump file that is being restored.
547 (the archive file syntax is also compatible with the
548 Solaris ufsdump generated one).
549
550 7. Small fix in restore making it able to read some (broken ?)
551 Solaris ufsdump tapes.
552
553 8. Fixed dump to correctly recognise the root filesystem when using
554 ext2 disk labels (LABEL=/). Thanks to John Yu <jky@it.bu.edu>
555 for reporting this bug.
556
557 9. Added the -P <file> option to restore to create a
558 Quick File Access file from an already made dump. Patch
559 contributed by Uwe Gohlke <uwe@ugsoft.de>.
560
561 10. Made restore compile and run on Solaris, making it a
562 possible replacement for the standard ufsrestore. Port was
563 contributed by Uwe Gohlke <uwe@ugsoft.de>.
564
565 Changes between versions 0.4b25 and 0.4b26 (released January 7, 2002)
566 =====================================================================
567
568 1. Added a set of backup scripts from Eugenio Diaz
569 <getnito@yahoo.com> in the examples section. It features
570 automatic (cron based) full and incremental dumping of
571 several filesystems on a separate filesystem.
572
573 2. Fixed a off-by-one miscalculation which disabled dumping
574 a one letter subdirectory. Thanks to Chris Siebenmann
575 <cks@utcc.utoronto.ca> for reporting the bug.
576
577 3. Fixed several restore bugs occuring when trying to
578 restore some missing files on the tape. Thanks to Chris
579 Siebenmann <cks@utcc.utoronto.ca> for reporting the bug.
580
581 4. Fixed --with-ldopts configure argument passing, installing from
582 a separate object directory, makefile cleanups contributed
583 by <splite@purdue.edu>.
584
585 5. Fix a bug which could caused, in some conditions, the highest
586 number inode of a filesystem, to not be dumped. Many thanks
587 to Chris Siebenmann <cks@utcc.utoronto.ca> for helping me
588 chase this bug.
589
590 Changes between versions 0.4b24 and 0.4b25 (released November 17, 2001)
591 =======================================================================
592
593 1. Added a mini howto from Patrick Walsh in the examples
594 directory.
595
596 2. Minor man pages syntax corrections. Thanks to
597 Chris Danis <screechco@home.com> for reporting the bugs.
598
599 3. Added a script from David B. Peterson <dave@toppledwagon.com>
600 to the examples section. It features dumping several
601 filesystems to a remote tape drive upon ssh.
602
603 4. Added a patch provided by Richard Jones <rich@annexia.org>
604 which allows BRADEMAX (number of read errors tolerated by
605 dump) to be adjusted using the -I option.
606
607 5. Fixed a bug which disabled doing "restore -C -f -". Thanks
608 to Clemens Stiglechner <a9401816@unet.univie.ac.at> for the
609 patch.
610
611 6. Add the -l option to restore to specify if, when doing a
612 remote restore, the file used to access the backup is a
613 regular file (the defaults being a tape drive). Restore needs
614 to know this information when reading a remote compressed
615 dump. Previously, this information was autodetected, but
616 the autodetection code fails (with ioctl: Inappropriate ioctl
617 for device) when using a non Linux remote box. Thanks to
618 many users and especially to Eros Albertazzi
619 <eros@lamel.bo.cnr.it> for reporting this.
620
621 7. Found a workaroung for the dump deadlock problem (3 childs
622 stuck in pause(), father in read()). The workaround seems
623 to work for me and several beta-testers. If it doesn't work
624 for you, please report back.
625
626 8. Updated the RPM spec file (BuildPrereq, URL etc).
627
628 Changes between versions 0.4b23 and 0.4b24 (released September 12, 2001)
629 ========================================================================
630
631 1. Fixed the permissions of a newly created QFA file by dump.
632
633 2. Cleaned up the source of dump (the external variables
634 definition was a complete mess, making possible to have
635 objects overlap).
636
637 3. Fixed restore to use the full tape volume path when doing
638 a compare (since it changes the working directory to the
639 filesystem being compared in the process).
640
641 4. Added the -q option to dump which makes dump abort
642 whenever it needs operator attention. It should be
643 easier to use dump in scripts with this option.
644
645 5. Detect the use of incompatible options to dump and
646 refuse them (like -a and -B options together).
647
648 6. Added bzip2 compression to dump/restore (use option -j level
649 to select it). Note that you will need a restore version
650 >= 0.4b24 in order to restore a bzip2 compressed dump.
651 The same warning as for the zlib compression applies:
652 the tape format of a bzip2 dump is not compatible with the
653 original BSD tape format.
654
655 7. Fixed a overflow problem in dump corrupting the dump when
656 very large files were encountered. Thanks to Vladimir Nadvornik
657 for the bug report.
658
659 8. Added a ioctl(BLKFLSBUF) in dump which should flush the
660 kernel buffer/page cache before starting the dump, helping
661 a bit those who use dump on mounted filesystems. Thanks to
662 John Yu <jky@it.bu.edu> and to Theodore T'so <tytso@mit.edu>
663 for this suggestion.
664
665 9. Updated the RPM spec file following the RedHat changes
666 (dynamically linked binaries now in /usr/sbin etc).
667
668 10. Added a patch from Helmut Jarausch <jarausch@igpm.rwth-aachen.de>
669 which enables restore to recognise multi volume compressed dumps
670 done on CD. Included his scripts for dump (which pipe the dump
671 output directly into cdrecord) and restore. There is now
672 possible to to backups to CD on the fly!
673
674 Changes between versions 0.4b22 and 0.4b23 (released July 20, 2001)
675 ===================================================================
676
677 1. Fixed a buffer overflow in restore/tape.c. Patch provided by
678 Marcus Meissner (Caldera International Security Dept.).
679
680 2. Implement the Sun rmt extended protocol. Patch submitted
681 by Ian Gordon <iangordon@users.sourceforge.net>.
682
683 3. Check for the e2fsprogs header <ext2fs/ext2_fs.h> instead of
684 the linux kernel header. This ensures that dump always has the
685 latest version of this file. Patch submitted by
686 Andreas Dilger <adilger@turbolinux.com>.
687
688 4. Report any filesystem present in either /etc/fstab with a
689 positive passno or /etc/dumpdates in dump -w output.
690 Patch submitted by Andreas Dilger <adilger@turbolinux.com>.
691
692 5. Fixed the looping problem in dump introduced in the
693 previous version.
694
695 6. Changed the -B option of dump to limit the size of
696 _compressed_ output per volume if compression is on.
697 Patch contributed by Helmut Jarausch
698 <jarausch@igpm.rwth-aachen.de>. Note however that, since
699 it is impossible to predict the size of the compressed
700 data before doing the compression, the -B limit is a bit
701 conservative.
702
703 7. Fixed a bug in reading the operator typed file/tape path for
704 the next volume in restore.
705
706 8. Implemented a "-F script" option to restore which permits the
707 user to specify a script which will be launched at the
708 beginning of each tape, useful for automatic programming of
709 tape changers for example. See the restore man page for the
710 script parameters and return codes.
711
712 9. Small fix for the QFA routines provided by Uwe Gohlke
713 <uwe@ugsoft.de>, and some recommendations for QFA uses in
714 the man pages.
715
716 10. Fixed the multivolume restoring where making a mistake
717 to the 'Mount next tape' prompt caused several blocks to
718 be lost.
719
720 11. Enhanced the -e option of dump to take as a parameter a
721 comma separated list of inode numbers.
722
723 12. Added the -E option to dump which specify a file containing
724 inode numbers to exclude from the dump.
725
726 13. Fixed the compressed multi-volume dump + restore.
727
728 Changes between versions 0.4b21 and 0.4b22 (released May 12, 2001)
729 ==================================================================
730
731 1. Made dump report the number of blocks dumped per volume.
732 Thanks to Kenneth Porter <shiva@well.com> for the suggestion.
733
734 2. Fix a bug in dump where waiting too much at the 'change volumes'
735 question caused the volume to be rewritten. Thanks to
736 Graham Reed <greed@users.sourceforge.net> for reporting the
737 bug and providing a patch.
738
739 3. Added a compression option to dump, contributed by Jerry
740 Peters <gapeters@worldnet.att.net>.
741
742 WARNING: the compression works only on files/pipes and
743 drives supporting variable block size.
744
745 WARNING2: tapes created using the compression feature are
746 incompatible with the standard dump tape format, and a
747 version of restore >= 0.4b22 will be needed for extraction.
748
749 4. Fixed some compilation problems for glibc 2.2.2 and 64 bit
750 architectures. Thanks to Paul Slootman <paul@debian.org> for
751 the patch and to Bdale Garbee <bdale@gag.com> for forwarding
752 it upstream.
753
754 5. Many cleanups (CPP defines, const char warnings, check of
755 ext2fs COMPAT flags, time_t cleanups, added libext2 version
756 in dump usage text) by Andreas Dilger <adilger@turbolinux.com>.
757
758 6. Made --prefix option work in configure. All the install path
759 are now based on the configure parameters.
760
761 7. Added the Quick File Access mode in dump/restore, contributed
762 by Uwe Gohlke <uwe@ugsoft.de>. In this mode, dump stores in
763 a file tape position for each inode, and this file is used by
764 restore (if called with parameter Q and the filename)
765 to directly position the tape at the file restore is currently
766 working on. This saves hours when restoring single files from
767 large backups, saves the tapes and the drive's head. Use
768 --enable-qfa option of configure to compile in the QFA support.
769
770 8. Added the possibility to dump several files and directories
771 in a single invocation of dump. Thanks to Uwe Gohlke
772 <uwe@ugsoft.de> for implementing this option.
773
774 9. Fixed the dumping and restoring of files with holes
775 (files ending with holes didn't get dumped or restored
776 correctly).
777
778 10. Fixed a socket descriptor leak in dump, which leaved opened
779 3 file descriptors per dump process (and there is one dump
780 process per tape).
781
782 11. Fixed dump large file system support, by explicit use of
783 open64/lseek64/etc functions (explicit use needed because
784 e2fsprogs libraries don't behave well when compiled with
785 FILE_OFFSET_BITS=64).
786
787 Changes between versions 0.4b20 and 0.4b21 (released January 13, 2001)
788 ======================================================================
789
790 1. Fixed some bugs in the dump -w|-W logic introduced by
791 the previous version. Thanks to Andreas Dilger
792 <adilger@turbolinux.com> for his help on this one.
793
794 2. Fixed again a compilation problem when using old e2fs
795 headers (filesystem label related). Thanks to many users
796 who reported this stupid error.
797
798 3. Fixed a build problem on old lib5 based systems dealing with
799 _PATH_MNTTAB being undefined. Thanks to John Adams
800 <johna@onevista.com> for reporting the bug.
801
802 4. Improved the error detection in restore when creating
803 the temporary files in TMPDIR. Now restore will corectly
804 report a 'no space left on device' error instead of
805 strange errors which could imply an archive corruption.
806 Thanks to Gabriel Somlo <somlo@cs.colostate.edu> and
807 bgjenero <bgjenero@sympatico.ca> for reporting the bug.
808
809 5. Added the throughput information in dump's progression
810 messages. Thanks to Andreas Dilger <adilger@turbolinux.com>
811 for the patch.
812
813 6. Use libext2fs's inode scanning routines, which are particularly
814 robust when dealing with errors (especially when having some
815 bad blocks on the filesystem). Many thanks to Colin
816 <colin@horizon.com> for reporting the bug, investigating
817 the issues, finding a workaround, writing the patch and
818 fully testing it... (of course, if this patch will break
819 anything, he is to blame for :-)).
820
821 7. Made dump and restore LFS aware. Dump can dump a filesystem
822 containing large files, generate a large file on output and
823 restore can restore them. This feature is not enabled by
824 default, use --enable-largefile option of configure to enable
825 it (you need to have a LFS aware glibc though). Thanks to
826 Andrea Arcangeli <andrea@suse.de> for submitting the patch,
827 and to Theodore T'so <tytso@valinux.com> for his always
828 useful thoughts.
829
830 8. Made dump ask upon a tape write error if it should rewrite
831 the current volume (assume this is a bad tape) or if it should
832 assume an end-of-tape condition (useful for tape drives which
833 behaves badly at the end of the tape). Thanks to Andreas
834 Dilger <adilger@turbolinux.com> for the suggestion.
835
836 Changes between versions 0.4b19 and 0.4b20 (released November 10, 2000)
837 =======================================================================
838
839 1. Fixed a small compilation problem due to a change
840 in the definintion of the struct sigaction in
841 glibc 2.0 / libc5. Thanks to Gunther Schlegel
842 <schlegel@riege.de> for reporting the bug and to
843 Dave Platt <dplatt@snulbug.mtview.ca.us> for suggesting
844 a fix.
845
846 2. Modified the label and uuid analysis in order to be
847 self-contained (independant of kernel/libc headers). This
848 should fix the compile with older kernel/libc headers and
849 will preserve the functionality. Thanks to Bernhard Erdmann
850 <bernhard.erdmann@gmx.de> for reporting the bug.
851
852 3. The 'exclude inode' option, if applied to a directory
853 inode, excludes now correctly all the leaves of this
854 directory. Thanks to John R. Dennison
855 <gerdesas@users.sourceforge.net> for reporting the bug.
856
857 4. Fixed the '-e' option to disable the possibility
858 to exclude the root inode (which causes the dumps to
859 be unreadable by restore). Prevented array overflow
860 when multiple -e options are used.
861
862 5. Fixed dump to correctly interpret a filesystem argument
863 which is a mountpoint and it is not an absolute path
864 (as specified in the fstab). Thanks to Bernhard R. Erdmann
865 <be@berdmann.de> for reporting the bug.
866
867 6. Made dump able to backup files larger than 2 GB. Note that
868 dump still doesn't cope with files larger than 4 GB.
869
870 7. Restore the real uid and gid before invoking an external
871 RSH program (big hole when dump or restore is suid root!).
872
873 8. Get the values for the default tape device and the location
874 of fstab file from the system headers. Thanks to
875 Andreas Dilger <adilger@turbolinux.com> for the patch.
876
877 9. Made dump -w|-W report all recognized filesystems
878 present in either /etc/fstab or /etc/dumpdates, and present
879 the list in the same order as in fstab file. Thanks
880 to Andreas Dilger <adilger@turbolinux.com> for the patch.
881
882 10. Made dump's -a (automatic end of tape detection) the
883 default. Specifying one of -B, -c, -d or -s options will
884 override the EOM detection. Thanks to Andreas Dilger
885 <adilger@turbolinux.com> for the patch.
886
887 11. Save the ext2 filesystem label into the dump volume label.
888 Specifying a volume label on the command line (-L option)
889 will override this feature. Thanks to Andreas Dilger
890 <adilger@turbolinux.com> for the patch.
891
892 Changes between versions 0.4b18 and 0.4b19 (released August 20, 2000)
893 =====================================================================
894
895 1. Fixed the signal handling in dump (which I broke in 0.4b17)
896 which was causing several strange dump failures (dump
897 hanged or segmentation faults etc).
898
899 2. Specified the default blocksize in the dump man page.
900
901 3. Changed two info messages of restore to be written on stdout
902 instead of stderr in order to leave stderr only for errors
903 or warnings. Thanks to Stephen Atwell
904 <satwell@urbana.css.mot.com> for the suggestion.
905
906 4. Corrected an off by one calculation which prevented
907 dumping a directory having a 1 character name length.
908 Thanks to Bernhard Erdmann <bernhard.erdmann@gmx.de>
909 for reporting the bug.
910
911 5. Reinforce dump in order to allow only level 0 and no
912 -u option when dumping a subdirectory, and document
913 this in the man page. Thanks to Bernhard Erdmann
914 <bernhard.erdmann@gmx.de> for reporting the bug.
915
916 6. Fixed a small harmless bug in restore which caused
917 in some conditions hard links to be restored several
918 times (therefore generation some warning messages).
919 Thanks to Kenneth Porter <shiva@well.com> for
920 reporting the bug.
921
922 7. Updated the RPM spec file to the latest RedHat version,
923 providing FHS packaging and other cosmetic changes.
924 You will need RPM version >= 3.0.5 in order to build the RPM.
925
926 8. Updated the configure script to check for libtermcap
927 before checking for libreadline, because we need this
928 library in order to compile the readline support.
929
930 9. Made dump understand the LABEL= and UUID= notation
931 both in /etc/fstab and on the command line. Note that
932 you will need the /proc filesystem in order to use
933 these notations. Thanks to Erik Troan <ewt@redhat.com>
934 for providing the patch.
935
936 Changes between versions 0.4b17 and 0.4b18 (released June 30, 2000)
937 ===================================================================
938
939 1. Fixed a potential buffer overflow in restore. Thanks
940 to Stan Bubrouski <satan@fastdial.net> for reporting
941 the bug.
942
943 2. Fixed a readline-related bug which prevented
944 'cat DUMPFILE | restore -i -f -' from working. Thanks
945 to Charles Karney <karney@users.sourceforge.net>
946 for the bug report.
947
948 3. Changed a few "panic" into "exit", causing restore to
949 be more stable against some attacks (like the last one
950 reported on Bugtraq, although the last version of restore
951 was not vulnerable - just dumped core). Thanks to
952 Andreas Hasenack <andreas@conectiva.com.br> for reporting
953 the bugs to me.
954
955 4. Removed the suid-root bit on dump and restore in the
956 default build (and generated RPMs). It should be safer
957 now. Users who need the suid-root capabilities in order
958 to make network backups should read first the man page
959 of dump and enable the suid bit manually.
960
961 5. Added -ltermcap to the compile parameters for restore
962 when using readline support, in order to make the compile
963 process work on some systems (SuSE ?). Thanks to
964 Patrik Schindler <poc@pocnet.net> for reporting the bug.
965
966 Changes between versions 0.4b16 and 0.4b17 (released June 1st, 2000)
967 ====================================================================
968
969 1. The -F script is called now *only* at the end of a tape,
970 not at the end of the dump. Thanks to Christian Haul
971 <haul@informatik.tu-darmstadt.de> for the bug report.
972
973 Normally, the device name and the current volume number
974 are passed on the command line of the script. However,
975 if you want the old style script (with no arguments
976 passed on the command line), you can enable it in
977 configure with the --enable-oldstylefscript.
978
979 2. Use posix signal handling to preserve dump functionality
980 with libc5. Thanks to Jeff Johnson <jbj@redhat.com> for
981 the patch.
982
983 3. Made the exit code of restore in case of a 'C'ompare
984 command reflect the result of the compare. An exit status
985 of 0 means the dump archive is correct, 1 means tape errors,
986 2 means that some files were modified. Thanks to Kenneth Porter
987 <shiva@well.com> for the suggestion.
988
989 4. Made (finally) quotes work in interactive restore.
990
991 5. Small fixes in order to allow dump to compile with a
992 really old e2fsprogs version. Thanks to Ian Zimmerman
993 <itz@speakeasy.org> for the bug report.
994
995 6. Add GNU readline capabilities to interactive restore.
996 Use configure's --enable-readline flag to enable this feature.
997 Thanks to Patrik Schindler <poc@pocnet.net> for the
998 suggestion.
999
1000 7. Do the compare on the fly in restore 'C' mode (this will
1001 allow not to exhaust the available /tmp space when
1002 ccmparing large files). Thanks to Kenneth Porter
1003 <shiva@well.com> for the suggestion.
1004
1005 Changes between versions 0.4b15 and 0.4b16 (released March 11, 2000)
1006 ====================================================================
1007
1008 1. Fixed some several duplicate 'DUMP: DUMP:' in the
1009 output of dump.
1010
1011 2. Corrected the estimation of blocks to dump. Note that
1012 this is still wrong for large directory inodes, due
1013 to the size of a BSD directory entry on the tape
1014 (estimation is based on the size of the ext2 directory,
1015 which is smaller because it doesn't contain the null
1016 character at the end).
1017
1018 3. Made dump report the total number of MB written to
1019 tape at the end of run. Thanks to W. Reilly Cooley
1020 <wcooley@nakedape.cc> for the patch.
1021
1022 4. Added the -X option to restore giving the possibility
1023 to read the names of the files to be extracted/listed
1024 from a text file (in addition of the command line).
1025 Thanks to Dejan Muhamedagic <dejan@quant-x.com> for the
1026 patch.
1027
1028 5. Added the device name and the current volume number
1029 as arguments to the end of tape script (dump -F option).
1030
1031 6. Made the multi-volume dump work again (after having
1032 broken it in 0.4b15).
1033
1034 Changes between versions 0.4b14 and 0.4b15 (released March 2, 2000)
1035 ===================================================================
1036
1037 1. Added a prompt command in interactive restore mode. Thanks
1038 to Andreas Dilger <adilger@home.com> for the patch.
1039
1040 2. Fixed a buffer overflow problem in dump (caused by
1041 not checking the size of the filesystem parameter).
1042 Thanks to Kim Yong-jun <loveyou@hackerslab.org> for
1043 reporting this on Bugtraq (and to several dump users
1044 who forwarded me his mail).
1045
1046 3. Added the '-F script' option to dump in order to
1047 launch a script at the end of each tape (to be used
1048 with a tape changer, or to notify the sysadmin by
1049 pager etc.).
1050
1051 4. Fixed a bug in restore compare code caused by the changes
1052 I made in 0.4b14.
1053
1054 5. Fixed the treatment of options using the old BSD syntax
1055 in both dump and restore.
1056
1057 Changes between versions 0.4b13 and 0.4b14 (released February 10, 2000)
1058 =======================================================================
1059
1060 1. Fixed a bug in dump which may have caused invalid deleted
1061 directories to be dumped out if they were deleted after the
1062 mapping pass. This could occure on active filesystem and lead
1063 to heap corruption (causing dump malfunction in many possible ways).
1064 Thanks to Jan Sanislo <oystr@cs.washington.edu> for finding this
1065 bug and submitting the patch.
1066
1067 2. Fixed the handling of the filesystem parameter in dump. A
1068 '/mnt/disk' parameter caused the disk contents to be dumped,
1069 but a '/mnt/disk/' parameter caused the mountpoint directory
1070 to be dumped (generally an empty directory).
1071
1072 3. Improved the output of dump in order to tell which directory
1073 it is currently dumping (when dumping a subtree).
1074
1075 4. Added the '-e' exclude inode option to dump. Thanks to
1076 Isaac Chuang <ike@isl.stanford.edu> for contributing with the patch.
1077
1078 5. Added a REPORTING-BUGS file in order to provide a guide
1079 on how to correctly report a bug in dump/restore.
1080
1081 6. Fixed a restore problem when restoring a hard link to an inode
1082 having the immutable or append-only attribute set. Thanks to
1083 Ambrose Li <acli@mingpaoxpress.com> for submitting the patch.
1084
1085 7. Fixed a compatibility problem between dumps made on little
1086 endian machines (the format was correct) and big endian
1087 machines (the format was incorrect). This fix break the
1088 compatibility with the older dumps made on big endian
1089 machines (sparc, m86k, ppc etc). For the first time in
1090 linux dump's history (I believe), the dumps made by *BSD,
1091 Linux/alpha, Linux/sparc and Linux/x86 are compatible,
1092 so interchangeable. Thanks to Rob Cermak
1093 <cermak@ahab.rutgers.edu> for submitting the bug and
1094 helping me test the fix.
1095
1096 8. Fixed the way dump reports the remaining percent/time, if
1097 the number of blocks actually dumped exceeds the estimated
1098 number of blocks. Thanks to Jean-Paul van der Jagt
1099 <jeanpaul@dutepp0.et.tudelft.nl> for reporting the bug.
1100
1101 Changes between versions 0.4b12 and 0.4b13 (released January 21, 2000)
1102 ======================================================================
1103
1104 1. Small Y2K fix in the man pages :). Thanks to Bernhard Sadlowski
1105 <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug.
1106
1107 2. Removed the requirement to build the RPM as root from the
1108 spec file. Thanks to Christian Weisgerber
1109 <naddy@mips.rhein-neckar.de> for submitting this.
1110
1111 3. Fixed a bug in dump related to the 'filetype' feature of ext2fs,
1112 causing dump to block when dumping really huge filesystems.
1113 Many thanks to Patrik Schindler <poc@pocnet.net> for
1114 helping me find this bug.
1115
1116 4. Fixed the treatment for an interrupt signal when dump access
1117 the remote tape through RSH. Thanks to Christian Weisgerber
1118 <naddy@mips.rhein-neckar.de> for providing the patch.
1119
1120 5. Fixed a bug which was causing dump/restore to display
1121 garbage characters instead of the remote host name.
1122
1123 Changes between versions 0.4b11 and 0.4b12 (released January 8, 2000)
1124 =====================================================================
1125
1126 1. Small fix in the dump man page. Thanks to Thorsten Kukuk
1127 <kukuk@suse.de> for submitting the patch.
1128
1129 2. Fix for the exit code when using the size estimate option of
1130 dump. Thanks to Matti Taskinen <mkt@rni.helsinki.fi> for
1131 submitting the patch.
1132
1133 3. Handle EINTR in atomical reads/writes in dump, which was causing
1134 dump to fail on some systems. Thanks to Eric Jergensen
1135 <eric@dvns.com> for reporting the bug and submitting the patch.
1136
1137 4. Handle more than 16 characters for the device names in dumpdates.
1138 (up to 255 now). Thanks to Rainer Clasen <bj@ncc.cicely.de> for
1139 tracking down the problem and proposing the solution.
1140
1141 5. Fixed a bug in dump which prevented the creation of the
1142 dumpdates file when doing a 0-level dump without already
1143 having a dumpdates file. Thanks to Patrik Schindler
1144 <poc@pocnet.net> for reporting the bug.
1145
1146 6. Changed the way dump 'S' flag reports the size estimate
1147 from number of blocks into bytes (making it compatible
1148 with the Solaris version, and simplifying things for
1149 amanda users). Thanks to Jason L Tibbitts III
1150 <tibbs@math.uh.edu> for reporting the bug.
1151
1152 7. Fixed a compatibility problem in linux/alpha dump tape format.
1153 Now the linux/alpha dump are (again) compatible with the
1154 other dump formats. But this breaks compatibility with
1155 older dumps made on alpha. Thanks to Mike Tibor
1156 <tibor@lib.uaa.alaska.edu> for helping me in finding this bug.
1157
1158 Changes between versions 0.4b10 and 0.4b11 (released December 5, 1999)
1159 ======================================================================
1160
1161 1. Added a '--enable-kerberos' to configure.
1162
1163 2. Added a 'S' option to dump which determines the amount of space
1164 that is needed to perform the dump without actually doing it, similar
1165 to the Sun's ufsdump 'S' option. Patch contributed by Rob Cermak
1166 <cermak@ahab.rutgers.edu>.
1167
1168 3. Added a 'M' multi-volume option to dump and restore which enables
1169 dumping to multiple files (useful when dumping to an ext2
1170 partition to make several dump files in order to bypass the 2GB
1171 file size limitation). The 'f' argument is treated as a prefix and
1172 the output files will be named <prefix>001, <prefix>002 etc. With
1173 the 'M' flag, restore automatically selects the right file without
1174 asking to enter a new tape each time.
1175
1176 4. Fixed a memory leak which was causing dump to grow very big
1177 (270MB when dumping a 10GB filesystem...). Thanks to Jason
1178 Fearon <jasonf@netrider.org.au> for reporting the bug.
1179
1180 Changes between versions 0.4b9 and 0.4b10 (released November 21, 1999)
1181 ======================================================================
1182
1183 1. Make configure test if the system glob routines support
1184 extended syntax (ALTDIRFUNC). If not, use the internal glob
1185 routines instead of system ones. Thanks to Bernhard Sadlowski
1186 <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug
1187 and helping me resolve this and other minor libc5 compiling
1188 glitches.
1189
1190 2. Fix a problem when dumping a ext2fs with the 'filetype'
1191 feature enabled. Thanks to Patrick J. LoPresti
1192 <patl@cag.lcs.mit.edu> for reporting the bug and to
1193 Theodore Y. Ts'o <tytso@mit.edu> for providing the patch.
1194
1195 3. Made the nodump flag work on directories. A directory which
1196 has the nodump flag gets never dumped, regardless of its
1197 contents.
1198
1199 4. Integrate a patch from Jeremy Fitzhardinge <jeremy@goop.org>
1200 which allows dump on an active ext3 filesystem. However, this
1201 is a "quick and dirty" patch which enables backup of an ext3
1202 filesystem through the ext2 compatibility (by ignoring the
1203 NEEDS_RECOVERY bit). The journal file is not recognized and
1204 it is dumped (it should not).
1205
1206 5. Test the superblock compatibility flags when dumping, in order
1207 to be sure that we know how to deal with specific features.
1208
1209 Changes between versions 0.4b8 and 0.4b9 (released November 5, 1999)
1210 ====================================================================
1211
1212 1. Use lchown instead of chown, fixing a possible security problem
1213 when restoring symlinks (a malicious user could use this
1214 to deliberately corrupt the ownership of important system files).
1215 Thanks to Chris Siebenmann <cks@utcc.utoronto.ca> for detecting
1216 this and providing the patch.
1217
1218 Changes between versions 0.4b7 and 0.4b8 (released November 3, 1999)
1219 ====================================================================
1220
1221 1. Put dump sources under CVS, added Id tags in all files so
1222 one can use 'ident' on binary files.
1223
1224 2. Added the dump/restore version in the usage text so one can
1225 easily verify the version he is using.
1226
1227 3. Small patch from Nuno Oliveira <nuno@eq.uc.pt> which fixes
1228 a va_start/va_end problem on linux-ppc (always call va_start
1229 va_end in pairs each time we use a vararg function).
1230
1231 4. Added again the DT_* constants because old libc does not
1232 contain them :(. Thanks to Eric Maisonobe <virnet@nat.fr>
1233 for submitting the bug report.
1234
1235 5. Use ext2fs_llseek instead of llseek. With recent e2fsprogs
1236 this should enable dumping big (huge) filesystems.
1237
1238 6. Added the RSH environment variable in order to be able to
1239 use a rsh replacement like ssh when doing remote backups (and
1240 bypass the security limitations of rcmd). Now you can do remote
1241 backups without being root (or making dump setuid root).
1242
1243 7. Modified again the way dumpdates works. For incremental dumps,
1244 we need to read dumpdates even if we are not using 'u' option.
1245 Thanks to Bdale Garbee <bdale@gag.com> for his ideas on how
1246 this should work.
1247
1248 Changes between versions 0.4b6 and 0.4b7 (released October 8, 1999)
1249 ===================================================================
1250
1251 1. Removed the 'k' flag from the restore 'about' text if kerberos
1252 was not compiled in.
1253
1254 2. Prototyped (f)setflags from e2fsprogs and corrected the calls
1255 to them (fsetflags takes a char*, setflags an open fd!).
1256
1257 3. (f)setflags is called only if the flags aren't empty. If the
1258 file is a special file, a warning is printed, because changing
1259 flags implies opening the device. Normally, a special file
1260 should not have any flag... (Debian bug #29775, patch provided
1261 by Abhijit Dasgupta <abhijit@ans.net>).
1262
1263 4. Made possible to dump a file system not mentioned in /etc/fstab.
1264 (Debian bug #11904, patch provided by Eirik Fuller <eirik@netcom.com>).
1265
1266 5. Changed the default behaviour to not create dumpdates
1267 unless 'u' option is specified. Removed the old "debian-patch"
1268 which provided the same thing. (Debian bug #38136, #33818).
1269
1270 6. Removed all those dump*announce, since they were getting old...
1271
1272 7. Added warning messages if dumpdates does not exist and
1273 when an inferior level dump does not exist (except for a level 0
1274 dump).
1275
1276 8. Debugged the glob calls in interactive mode: restore used a
1277 dirent struct which was different from the /usr/include/dirent.h
1278 one (this used to work, is it a glibc2 change?), so none of the
1279 compat glob (which used /usr/include/dirent.h) or the system glob
1280 worked. Restore use now the system dirent (and the system
1281 DT_* constants), which are compatible with BSD ones.
1282
1283 9. Added a configure flag (--with-dumpdatespath) to specify
1284 the location of dumpdates file. By default, it is
1285 /etc/dumpdates.
1286
1287 10. Added the "AUTHOR" and "AVAILABILITY" sections and
1288 included the current date/version in man pages.
1289
1290 11. Corrected the estimation of remaining time when
1291 the operator doesn't change the tapes quickly enough. This
1292 was an old bug, I thought I corrected it, and discovered
1293 that in fact it was corrected in two different places, so
1294 the results canceled each other...
1295
1296 Changes between versions 0.4b5 and 0.4b6 (released October 1, 1999)
1297 ===================================================================
1298
1299 1. Integrated multiple patches from RedHat, Debian and SuSE:
1300
1301 - tweak dump/itime.c to not try to read dumpdates if the 'u' option
1302 isn't specified.
1303 - several fixes in the man pages.
1304 - update the default tape device to /dev/st0.
1305 - many updates for Linux Alpha (byte ordering, size_t etc).
1306 - buffer overruns.
1307 - use environment variable for TMPDIR (instead of /tmp).
1308 - use sigjmp_buf instead of jmp_buf (RedHat bug #3260).
1309 - workaround egcs bug (RedHat bugs #4281 and #2989).
1310 - wire $(OPT) throughout Makefile's.
1311
1312 2. Upgrade the dump revision to 1, making possible to dump filesystems
1313 made with e2fsprogs-1.15 or newer. Nothing seems to break...
1314
1315 3. Fix some compile warnings, prototype all functions.
1316
1317 4. Use glibc err/glob instead of internal compatibility
1318 routines (only if available).
1319
1320 5. Fix a compile error on Linux 2.2.7 / libc5 (5.4.44) (patch provided
1321 by Bernhard Sadlowski <sadlowsk@mathematik.uni-bielefeld.de>).
1322
1323 Changes between versions 0.4b4 and 0.4b5 (released September 22, 1999)
1324 ======================================================================
1325
1326 1. Integrated the changes from FreeBSD-3.1-RELEASE
1327 (mostly bug fixes, buffer overruns, dump has now an "automatic
1328 tape length calculation" flag, dump/restore can use kerberos now
1329 (this is NOT tested), use environment variables for TAPE and
1330 RMT etc.).
1331
1332 2. Integrated three RedHat patches ("glibc", "kernel" and "bread" patches)
1333
1334 3. Corrected a bug in restore when using 'C' option with multi-volumes
1335 tapes (files splited accros two tapes give "size changed" errors
1336 when comparing).
1337
1338 4. Corrected the long standing bug when dumping multiple tapes.
1339 This works for me, needs further testing.
1340
1341 Changes between versions 0.4b3 and 0.4b4 (released January 17, 1997)
1342 ====================================================================
1343
1344 1. Dump now runs correctly on kernels 2.1.x
1345 Fix made by Gerald Peters <gapeters@worldnet.att.net>
1346
1347 Changes between versions 0.4b2 and 0.4b3
1348 ========================================
1349
1350 1. Use realpath() if available
1351
1352 2. Report statistics
1353
1354 Changes between versions 0.4b1 and 0.4b2
1355 ========================================
1356
1357 1. Fixed the bug fix from Greg Lutz (I had made a mistake when integrating
1358 the patch)
1359
1360 2. Fixed restore to make it able to read FreeBSD 2.x dumps again
1361
1362 3. Fixed configure.in to correctly handle --enable-rmt
1363
1364 Changes between versions 0.3 and 0.4b1
1365 ======================================
1366
1367 1. Integrated the changes from 4.4BSD-Lite2
1368
1369 2. Integrated the patches from Debian and Red Hat
1370
1371 3. Portability changes: use the __u32, __u16, __s32, and __s16 types
1372
1373 4. Changed dump to use the Ext2fs library to get block addresses. This
1374 should solve the endianness problem on SparcLinux.
1375
1376 5. Created a configure.in file (shamelessly stolen from the e2fsprogs
1377 distribution's one) to use autoconf
1378
1379 6. Fixed a few minor bugs
1380
1381 Changes between versions 0.2e and 0.2f
1382 ======================================
1383
1384 1. Added the creation of named pipes (fifos) in restore.
1385
1386 2. Added the -N flag in the restore manual page.
1387
1388 3. Added the file kernel.patch which contains the llseek() optimization
1389 patch for 1.2.x kernels.
1390
1391 4. Fixed a bug in the restoration of symbolic links: owner and group were
1392 not restored.
1393
1394 5. Integrated some changes from FreeBSD 2.2.
1395
1396 6. Added a call to ftruncate() after restoring each file to restore
1397 correctly files ending by a hole.
1398
1399 Changes between versions 0.2d and 0.2e
1400 ======================================
1401
1402 1. Fixed a bug in the "set owner/mode" process. Every file was restored
1403 with owner = root (0) and group = root/wheel/whatever (0).
1404
1405 Changes between versions 0.2c and 0.2d
1406 ======================================
1407
1408 1. Dump is now able to backup 2GB+ filesystems.
1409
1410 2. Dump and restore can now be linked as static binaries.
1411
1412 Changes between versions 0.2b and 0.2c
1413 ======================================
1414
1415 1. Fixed a bug when dumping ``slow'' (i.e. normal) symbolic links.
1416
1417 Changes between versions 0.2a and 0.2b
1418 ======================================
1419
1420 1. Really fixed the bug that I should have corrected in 0.2a.
1421
1422 2. Enabled optimization again.
1423
1424 Changes between versions 0.2 and 0.2a
1425 =====================================
1426
1427 1. Disabled the optimization during compilation.
1428
1429 Changes between versions 0.1 and 0.2
1430 ====================================
1431
1432 1. Fixed a bug in fstab.c which caused a null pointer to be stored in
1433 the fs_type field (actually, I modified the file fstab.c to make it
1434 use the mntent functions).
1435
1436 2. Dump and restore now use a 4.3 BSD compatible dump format. Backups
1437 made by dump should be readable by the BSD restore and backups made
1438 by the BSD dump should be readable by restore. Unfortunately, this
1439 means that the dump format has changed between version 0.1 and version
1440 0.2 :-(
1441
1442 3. Dump is now able to backup a subtree, it is no longer limited to whole
1443 filesystems like the BSD version.
1444
1445 4. Dump now uses ext2_llseek() so it is able to backup filesystems bigger
1446 than 2 GB.
1447
1448 Changes between versions 0.0 and 0.1
1449 ====================================
1450
1451 1. Now create links rdump and rrestore during the `make install' step.
1452
1453 2. Linux port specific bugs added to the manual pages
1454
1455 3. Incorrect estimation of the number of tapes blocks fixed when doing
1456 incremental backups.
1457
1458 4. Better ls-like format in restore in interactive mode.