CHANGES

   1 $Id: CHANGES,v 1.33 2000/01/09 23:47:29 tiniou Exp $
   2
   3 Changes between versions 0.4b12 and 0.4b13 (released ???????????????)
   4 =====================================================================
   5
   6 1.      Small Y2K fix in the man pages :). Thanks to Bernhard Sadlowski
   7         <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug.
   8
   9 2.      Removed the requirement to build the RPM as root from the
  10         spec file. Thanks to Christian Weisgerber
  11         <naddy@mips.rhein-neckar.de> for submitting this.
  12
  13 3.      Fix a bug in dump related to the 'filetype' feature of ext2fs,
  14         causing dump to block when dumping really huge filesystems.
  15         Many thanks to Patrik Schindler <poc@pocnet.net> for
  16         helping me find this bug.
  17
  18 Changes between versions 0.4b11 and 0.4b12 (released January 8, 2000)
  19 =====================================================================
  20
  21 1.      Small fix in the dump man page. Thanks to Thorsten Kukuk
  22         <kukuk@suse.de> for submitting the patch.
  23
  24 2.      Fix for the exit code when using the size estimate option of
  25         dump. Thanks to Matti Taskinen <mkt@rni.helsinki.fi> for
  26         submitting the patch.
  27
  28 3.      Handle EINTR in atomical reads/writes in dump, which was causing
  29         dump to fail on some systems. Thanks to Eric Jergensen
  30         <eric@dvns.com> for reporting the bug and submitting the patch.
  31
  32 4.      Handle more than 16 characters for the device names in dumpdates.
  33         (up to 255 now). Thanks to Rainer Clasen <bj@ncc.cicely.de> for
  34         tracking down the problem and proposing the solution.
  35
  36 5.      Fixed a bug in dump which prevented the creation of the
  37         dumpdates file when doing a 0-level dump without already
  38         having a dumpdates file. Thanks to Patrik Schindler
  39         <poc@pocnet.net> for reporting the bug.
  40
  41 6.      Changed the way dump 'S' flag reports the size estimate
  42         from number of blocks into bytes (making it compatible
  43         with the Solaris version, and simplifying things for
  44         amanda users). Thanks to Jason L Tibbitts III
  45         <tibbs@math.uh.edu> for reporting the bug.
  46
  47 7.      Fixed a compatibility problem in linux/alpha dump tape format.
  48         Now the linux/alpha dump are (again) compatible with the
  49         other dump formats. But this breaks compatibility with
  50         older dumps made on alpha. Thanks to Mike Tibor
  51         <tibor@lib.uaa.alaska.edu> for helping me in finding this bug.
  52
  53 Changes between versions 0.4b10 and 0.4b11 (released December 5, 1999)
  54 ======================================================================
  55
  56 1.      Added a '--enable-kerberos' to configure.
  57
  58 2.      Added a 'S' option to dump which determines the amount of space
  59         that is needed to perform the dump without actually doing it, similar
  60         to the Sun's ufsdump 'S' option. Patch contributed by Rob Cermak
  61         <cermak@ahab.rutgers.edu>.
  62
  63 3.      Added a 'M' multi-volume option to dump and restore which enables
  64         dumping to multiple files (useful when dumping to an ext2
  65         partition to make several dump files in order to bypass the 2GB
  66         file size limitation). The 'f' argument is treated as a prefix and
  67         the output files will be named <prefix>001, <prefix>002 etc. With
  68         the 'M' flag, restore automatically selects the right file without
  69         asking to enter a new tape each time.
  70
  71 4.      Fixed a memory leak which was causing dump to grow very big
  72         (270MB when dumping a 10GB filesystem...). Thanks to Jason
  73         Fearon <jasonf@netrider.org.au> for reporting the bug.
  74
  75 Changes between versions 0.4b9 and 0.4b10 (released November 21, 1999)
  76 ======================================================================
  77
  78 1.      Make configure test if the system glob routines support
  79         extended syntax (ALTDIRFUNC). If not, use the internal glob
  80         routines instead of system ones. Thanks to Bernhard Sadlowski
  81         <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug
  82         and helping me resolve this and other minor libc5 compiling
  83         glitches.
  84
  85 2.      Fix a problem when dumping a ext2fs with the 'filetype'
  86         feature enabled. Thanks to Patrick J. LoPresti
  87         <patl@cag.lcs.mit.edu> for reporting the bug and to
  88         Theodore Y. Ts'o <tytso@mit.edu> for providing the patch.
  89
  90 3.      Made the nodump flag work on directories. A directory which
  91         has the nodump flag gets never dumped, regardless of its
  92         contents.
  93
  94 4.      Integrate a patch from Jeremy Fitzhardinge <jeremy@goop.org>
  95         which allows dump on an active ext3 filesystem. However, this
  96         is a "quick and dirty" patch which enables backup of an ext3
  97         filesystem through the ext2 compatibility (by ignoring the
  98         NEEDS_RECOVERY bit). The journal file is not recognized and
  99         it is dumped (it should not).
 100
 101 5.      Test the superblock compatibility flags when dumping, in order
 102         to be sure that we know how to deal with specific features.
 103
 104 Changes between versions 0.4b8 and 0.4b9 (released November 5, 1999)
 105 ====================================================================
 106
 107 1.      Use lchown instead of chown, fixing a possible security problem
 108         when restoring symlinks (a malicious user could use this
 109         to deliberately corrupt the ownership of important system files).
 110         Thanks to Chris Siebenmann <cks@utcc.utoronto.ca> for detecting
 111         this and providing the patch.
 112
 113 Changes between versions 0.4b7 and 0.4b8 (released November 3, 1999)
 114 ====================================================================
 115
 116 1.      Put dump sources under CVS, added Id tags in all files so
 117         one can use 'ident' on binary files.
 118
 119 2.      Added the dump/restore version in the usage text so one can
 120         easily verify the version he is using.
 121
 122 3.      Small patch from Nuno Oliveira <nuno@eq.uc.pt> which fixes
 123         a va_start/va_end problem on linux-ppc (always call va_start
 124         va_end in pairs each time we use a vararg function).
 125
 126 4.      Added again the DT_* constants because old libc does not
 127         contain them :(. Thanks to Eric Maisonobe <virnet@nat.fr>
 128         for submitting the bug report.
 129
 130 5.      Use ext2fs_llseek instead of llseek. With recent e2fsprogs
 131         this should enable dumping big (huge) filesystems.
 132
 133 6.      Added the RSH environment variable in order to be able to
 134         use a rsh replacement like ssh when doing remote backups (and
 135         bypass the security limitations of rcmd). Now you can do remote
 136         backups without being root (or making dump setuid root).
 137
 138 7.      Modified again the way dumpdates works. For incremental dumps,
 139         we need to read dumpdates even if we are not using 'u' option.
 140         Thanks to Bdale Garbee <bdale@gag.com> for his ideas on how
 141         this should work.
 142
 143 Changes between versions 0.4b6 and 0.4b7 (released October 8, 1999)
 144 ===================================================================
 145
 146 1.      Removed the 'k' flag from the restore 'about' text if kerberos
 147         was not compiled in.
 148
 149 2.      Prototyped (f)setflags from e2fsprogs and corrected the calls
 150         to them (fsetflags takes a char*, setflags an open fd!).
 151
 152 3.      (f)setflags is called only if the flags aren't empty. If the
 153         file is a special file, a warning is printed, because changing
 154         flags implies opening the device. Normally, a special file
 155         should not have any flag... (Debian bug #29775, patch provided
 156         by Abhijit Dasgupta <abhijit@ans.net>).
 157
 158 4.      Made possible to dump a file system not mentioned in /etc/fstab.
 159         (Debian bug #11904, patch provided by Eirik Fuller <eirik@netcom.com>).
 160
 161 5.      Changed the default behaviour to not create dumpdates
 162         unless 'u' option is specified. Removed the old "debian-patch"
 163         which provided the same thing. (Debian bug #38136, #33818).
 164
 165 6.      Removed all those dump*announce, since they were getting old...
 166
 167 7.      Added warning messages if dumpdates does not exist and
 168         when an inferior level dump does not exist (except for a level 0
 169         dump).
 170
 171 8.      Debugged the glob calls in interactive mode: restore used a
 172         dirent struct which was different from the /usr/include/dirent.h
 173         one (this used to work, is it a glibc2 change?), so none of the
 174         compat glob (which used /usr/include/dirent.h) or the system glob
 175         worked. Restore use now the system dirent (and the system
 176         DT_* constants), which are compatible with BSD ones.
 177
 178 9.      Added a configure flag (--with-dumpdatespath) to specify
 179         the location of dumpdates file. By default, it is
 180         /etc/dumpdates.
 181
 182 10.     Added the "AUTHOR" and "AVAILABILITY" sections and
 183         included the current date/version in man pages.
 184
 185 11.     Corrected the estimation of remaining time when
 186         the operator doesn't change the tapes quickly enough. This
 187         was an old bug, I thought I corrected it, and discovered
 188         that in fact it was corrected in two different places, so
 189         the results canceled each other...
 190
 191 Changes between versions 0.4b5 and 0.4b6 (released October 1, 1999)
 192 ===================================================================
 193
 194 1.      Integrated multiple patches from RedHat, Debian and SuSE:
 195
 196         - tweak dump/itime.c to not try to read dumpdates if the 'u' option
 197           isn't specified.
 198         - several fixes in the man pages.
 199         - update the default tape device to /dev/st0.
 200         - many updates for Linux Alpha (byte ordering, size_t etc).
 201         - buffer overruns.
 202         - use environment variable for TMPDIR (instead of /tmp).
 203         - use sigjmp_buf instead of jmp_buf (RedHat bug #3260).
 204         - workaround egcs bug (RedHat bugs #4281 and #2989).
 205         - wire $(OPT) throughout Makefile's.
 206
 207 2.      Upgrade the dump revision to 1, making possible to dump filesystems
 208         made with e2fsprogs-1.15 or newer. Nothing seems to break...
 209
 210 3.      Fix some compile warnings, prototype all functions.
 211
 212 4.      Use glibc err/glob instead of internal compatibility
 213         routines (only if available).
 214
 215 5.      Fix a compile error on Linux 2.2.7 / libc5 (5.4.44) (patch provided
 216         by Bernhard Sadlowski <sadlowsk@mathematik.uni-bielefeld.de>).
 217
 218 Changes between versions 0.4b4 and 0.4b5 (released September 22, 1999)
 219 ======================================================================
 220
 221 1.      Integrated the changes from FreeBSD-3.1-RELEASE
 222         (mostly bug fixes, buffer overruns, dump has now an "automatic
 223         tape length calculation" flag, dump/restore can use kerberos now
 224         (this is NOT tested), use environment variables for TAPE and
 225         RMT etc.).
 226
 227 2.      Integrated three RedHat patches ("glibc", "kernel" and "bread" patches)
 228
 229 3.      Corrected a bug in restore when using 'C' option with multi-volumes
 230         tapes (files splited accros two tapes give "size changed" errors
 231         when comparing).
 232
 233 4.      Corrected the long standing bug when dumping multiple tapes.
 234         This works for me, needs further testing.
 235
 236 Changes between versions 0.4b3 and 0.4b4 (released January 17, 1997)
 237 ====================================================================
 238
 239 1.      Dump now runs correctly on kernels 2.1.x
 240         Fix made by Gerald Peters <gapeters@worldnet.att.net>
 241
 242 Changes between versions 0.4b2 and 0.4b3
 243 ========================================
 244
 245 1.      Use realpath() if available
 246
 247 2.      Report statistics
 248
 249 Changes between versions 0.4b1 and 0.4b2
 250 ========================================
 251
 252 1.      Fixed the bug fix from Greg Lutz (I had made a mistake when integrating
 253         the patch)
 254
 255 2.      Fixed restore to make it able to read FreeBSD 2.x dumps again
 256
 257 3.      Fixed configure.in to correctly handle --enable-rmt
 258
 259 Changes between versions 0.3 and 0.4b1
 260 ======================================
 261
 262 1.      Integrated the changes from 4.4BSD-Lite2
 263
 264 2.      Integrated the patches from Debian and Red Hat
 265
 266 3.      Portability changes: use the __u32, __u16, __s32, and __s16 types
 267
 268 4.      Changed dump to use the Ext2fs library to get block addresses.  This
 269         should solve the endianness problem on SparcLinux.
 270
 271 5.      Created a configure.in file (shamelessly stolen from the e2fsprogs
 272         distribution's one) to use autoconf
 273
 274 6.      Fixed a few minor bugs
 275
 276 Changes between versions 0.2e and 0.2f
 277 ======================================
 278
 279 1.      Added the creation of named pipes (fifos) in restore.
 280
 281 2.      Added the -N flag in the restore manual page.
 282
 283 3.      Added the file kernel.patch which contains the llseek() optimization
 284         patch for 1.2.x kernels.
 285
 286 4.      Fixed a bug in the restoration of symbolic links: owner and group were
 287         not restored.
 288
 289 5.      Integrated some changes from FreeBSD 2.2.
 290
 291 6.      Added a call to ftruncate() after restoring each file to restore
 292         correctly files ending by a hole.
 293
 294 Changes between versions 0.2d and 0.2e
 295 ======================================
 296
 297 1.      Fixed a bug in the "set owner/mode" process.  Every file was restored
 298         with owner = root (0) and group = root/wheel/whatever (0).
 299
 300 Changes between versions 0.2c and 0.2d
 301 ======================================
 302
 303 1.      Dump is now able to backup 2GB+ filesystems.
 304
 305 2.      Dump and restore can now be linked as static binaries.
 306
 307 Changes between versions 0.2b and 0.2c
 308 ======================================
 309
 310 1.      Fixed a bug when dumping ``slow'' (i.e. normal) symbolic links.
 311
 312 Changes between versions 0.2a and 0.2b
 313 ======================================
 314
 315 1.      Really fixed the bug that I should have corrected in 0.2a.
 316
 317 2.      Enabled optimization again.
 318
 319 Changes between versions 0.2 and 0.2a
 320 =====================================
 321
 322 1.      Disabled the optimization during compilation.
 323
 324 Changes between versions 0.1 and 0.2
 325 ====================================
 326
 327 1.      Fixed a bug in fstab.c which caused a null pointer to be stored in
 328         the fs_type field (actually, I modified the file fstab.c to make it
 329         use the mntent functions).
 330
 331 2.      Dump and restore now use a 4.3 BSD compatible dump format.  Backups
 332         made by dump should be readable by the BSD restore and backups made
 333         by the BSD dump should be readable by restore.  Unfortunately, this
 334         means that the dump format has changed between version 0.1 and version
 335         0.2 :-(
 336
 337 3.      Dump is now able to backup a subtree, it is no longer limited to whole
 338         filesystems like the BSD version.
 339
 340 4.      Dump now uses ext2_llseek() so it is able to backup filesystems bigger
 341         than 2 GB.
 342
 343 Changes between versions 0.0 and 0.1
 344 ====================================
 345
 346 1.      Now create links rdump and rrestore during the `make install' step.
 347
 348 2.      Linux port specific bugs added to the manual pages
 349
 350 3.      Incorrect estimation of the number of tapes blocks fixed when doing
 351         incremental backups.
 352
 353 4.      Better ls-like format in restore in interactive mode.