CHANGES

   1 $Id: CHANGES,v 1.35 2000/01/17 16:32:44 stelian 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.      Fixed 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 4.      Fixed the treatment for an interrupt signal when dump access
  19         the remote tape through RSH. Thanks to Christian Weisgerber
  20         <naddy@mips.rhein-neckar.de> for providing the patch.
  21
  22 5.      Fixed a bug which was causing dump/restore to display
  23         garbage characters instead of the remote host name.
  24
  25 Changes between versions 0.4b11 and 0.4b12 (released January 8, 2000)
  26 =====================================================================
  27
  28 1.      Small fix in the dump man page. Thanks to Thorsten Kukuk
  29         <kukuk@suse.de> for submitting the patch.
  30
  31 2.      Fix for the exit code when using the size estimate option of
  32         dump. Thanks to Matti Taskinen <mkt@rni.helsinki.fi> for
  33         submitting the patch.
  34
  35 3.      Handle EINTR in atomical reads/writes in dump, which was causing
  36         dump to fail on some systems. Thanks to Eric Jergensen
  37         <eric@dvns.com> for reporting the bug and submitting the patch.
  38
  39 4.      Handle more than 16 characters for the device names in dumpdates.
  40         (up to 255 now). Thanks to Rainer Clasen <bj@ncc.cicely.de> for
  41         tracking down the problem and proposing the solution.
  42
  43 5.      Fixed a bug in dump which prevented the creation of the
  44         dumpdates file when doing a 0-level dump without already
  45         having a dumpdates file. Thanks to Patrik Schindler
  46         <poc@pocnet.net> for reporting the bug.
  47
  48 6.      Changed the way dump 'S' flag reports the size estimate
  49         from number of blocks into bytes (making it compatible
  50         with the Solaris version, and simplifying things for
  51         amanda users). Thanks to Jason L Tibbitts III
  52         <tibbs@math.uh.edu> for reporting the bug.
  53
  54 7.      Fixed a compatibility problem in linux/alpha dump tape format.
  55         Now the linux/alpha dump are (again) compatible with the
  56         other dump formats. But this breaks compatibility with
  57         older dumps made on alpha. Thanks to Mike Tibor
  58         <tibor@lib.uaa.alaska.edu> for helping me in finding this bug.
  59
  60 Changes between versions 0.4b10 and 0.4b11 (released December 5, 1999)
  61 ======================================================================
  62
  63 1.      Added a '--enable-kerberos' to configure.
  64
  65 2.      Added a 'S' option to dump which determines the amount of space
  66         that is needed to perform the dump without actually doing it, similar
  67         to the Sun's ufsdump 'S' option. Patch contributed by Rob Cermak
  68         <cermak@ahab.rutgers.edu>.
  69
  70 3.      Added a 'M' multi-volume option to dump and restore which enables
  71         dumping to multiple files (useful when dumping to an ext2
  72         partition to make several dump files in order to bypass the 2GB
  73         file size limitation). The 'f' argument is treated as a prefix and
  74         the output files will be named <prefix>001, <prefix>002 etc. With
  75         the 'M' flag, restore automatically selects the right file without
  76         asking to enter a new tape each time.
  77
  78 4.      Fixed a memory leak which was causing dump to grow very big
  79         (270MB when dumping a 10GB filesystem...). Thanks to Jason
  80         Fearon <jasonf@netrider.org.au> for reporting the bug.
  81
  82 Changes between versions 0.4b9 and 0.4b10 (released November 21, 1999)
  83 ======================================================================
  84
  85 1.      Make configure test if the system glob routines support
  86         extended syntax (ALTDIRFUNC). If not, use the internal glob
  87         routines instead of system ones. Thanks to Bernhard Sadlowski
  88         <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug
  89         and helping me resolve this and other minor libc5 compiling
  90         glitches.
  91
  92 2.      Fix a problem when dumping a ext2fs with the 'filetype'
  93         feature enabled. Thanks to Patrick J. LoPresti
  94         <patl@cag.lcs.mit.edu> for reporting the bug and to
  95         Theodore Y. Ts'o <tytso@mit.edu> for providing the patch.
  96
  97 3.      Made the nodump flag work on directories. A directory which
  98         has the nodump flag gets never dumped, regardless of its
  99         contents.
 100
 101 4.      Integrate a patch from Jeremy Fitzhardinge <jeremy@goop.org>
 102         which allows dump on an active ext3 filesystem. However, this
 103         is a "quick and dirty" patch which enables backup of an ext3
 104         filesystem through the ext2 compatibility (by ignoring the
 105         NEEDS_RECOVERY bit). The journal file is not recognized and
 106         it is dumped (it should not).
 107
 108 5.      Test the superblock compatibility flags when dumping, in order
 109         to be sure that we know how to deal with specific features.
 110
 111 Changes between versions 0.4b8 and 0.4b9 (released November 5, 1999)
 112 ====================================================================
 113
 114 1.      Use lchown instead of chown, fixing a possible security problem
 115         when restoring symlinks (a malicious user could use this
 116         to deliberately corrupt the ownership of important system files).
 117         Thanks to Chris Siebenmann <cks@utcc.utoronto.ca> for detecting
 118         this and providing the patch.
 119
 120 Changes between versions 0.4b7 and 0.4b8 (released November 3, 1999)
 121 ====================================================================
 122
 123 1.      Put dump sources under CVS, added Id tags in all files so
 124         one can use 'ident' on binary files.
 125
 126 2.      Added the dump/restore version in the usage text so one can
 127         easily verify the version he is using.
 128
 129 3.      Small patch from Nuno Oliveira <nuno@eq.uc.pt> which fixes
 130         a va_start/va_end problem on linux-ppc (always call va_start
 131         va_end in pairs each time we use a vararg function).
 132
 133 4.      Added again the DT_* constants because old libc does not
 134         contain them :(. Thanks to Eric Maisonobe <virnet@nat.fr>
 135         for submitting the bug report.
 136
 137 5.      Use ext2fs_llseek instead of llseek. With recent e2fsprogs
 138         this should enable dumping big (huge) filesystems.
 139
 140 6.      Added the RSH environment variable in order to be able to
 141         use a rsh replacement like ssh when doing remote backups (and
 142         bypass the security limitations of rcmd). Now you can do remote
 143         backups without being root (or making dump setuid root).
 144
 145 7.      Modified again the way dumpdates works. For incremental dumps,
 146         we need to read dumpdates even if we are not using 'u' option.
 147         Thanks to Bdale Garbee <bdale@gag.com> for his ideas on how
 148         this should work.
 149
 150 Changes between versions 0.4b6 and 0.4b7 (released October 8, 1999)
 151 ===================================================================
 152
 153 1.      Removed the 'k' flag from the restore 'about' text if kerberos
 154         was not compiled in.
 155
 156 2.      Prototyped (f)setflags from e2fsprogs and corrected the calls
 157         to them (fsetflags takes a char*, setflags an open fd!).
 158
 159 3.      (f)setflags is called only if the flags aren't empty. If the
 160         file is a special file, a warning is printed, because changing
 161         flags implies opening the device. Normally, a special file
 162         should not have any flag... (Debian bug #29775, patch provided
 163         by Abhijit Dasgupta <abhijit@ans.net>).
 164
 165 4.      Made possible to dump a file system not mentioned in /etc/fstab.
 166         (Debian bug #11904, patch provided by Eirik Fuller <eirik@netcom.com>).
 167
 168 5.      Changed the default behaviour to not create dumpdates
 169         unless 'u' option is specified. Removed the old "debian-patch"
 170         which provided the same thing. (Debian bug #38136, #33818).
 171
 172 6.      Removed all those dump*announce, since they were getting old...
 173
 174 7.      Added warning messages if dumpdates does not exist and
 175         when an inferior level dump does not exist (except for a level 0
 176         dump).
 177
 178 8.      Debugged the glob calls in interactive mode: restore used a
 179         dirent struct which was different from the /usr/include/dirent.h
 180         one (this used to work, is it a glibc2 change?), so none of the
 181         compat glob (which used /usr/include/dirent.h) or the system glob
 182         worked. Restore use now the system dirent (and the system
 183         DT_* constants), which are compatible with BSD ones.
 184
 185 9.      Added a configure flag (--with-dumpdatespath) to specify
 186         the location of dumpdates file. By default, it is
 187         /etc/dumpdates.
 188
 189 10.     Added the "AUTHOR" and "AVAILABILITY" sections and
 190         included the current date/version in man pages.
 191
 192 11.     Corrected the estimation of remaining time when
 193         the operator doesn't change the tapes quickly enough. This
 194         was an old bug, I thought I corrected it, and discovered
 195         that in fact it was corrected in two different places, so
 196         the results canceled each other...
 197
 198 Changes between versions 0.4b5 and 0.4b6 (released October 1, 1999)
 199 ===================================================================
 200
 201 1.      Integrated multiple patches from RedHat, Debian and SuSE:
 202
 203         - tweak dump/itime.c to not try to read dumpdates if the 'u' option
 204           isn't specified.
 205         - several fixes in the man pages.
 206         - update the default tape device to /dev/st0.
 207         - many updates for Linux Alpha (byte ordering, size_t etc).
 208         - buffer overruns.
 209         - use environment variable for TMPDIR (instead of /tmp).
 210         - use sigjmp_buf instead of jmp_buf (RedHat bug #3260).
 211         - workaround egcs bug (RedHat bugs #4281 and #2989).
 212         - wire $(OPT) throughout Makefile's.
 213
 214 2.      Upgrade the dump revision to 1, making possible to dump filesystems
 215         made with e2fsprogs-1.15 or newer. Nothing seems to break...
 216
 217 3.      Fix some compile warnings, prototype all functions.
 218
 219 4.      Use glibc err/glob instead of internal compatibility
 220         routines (only if available).
 221
 222 5.      Fix a compile error on Linux 2.2.7 / libc5 (5.4.44) (patch provided
 223         by Bernhard Sadlowski <sadlowsk@mathematik.uni-bielefeld.de>).
 224
 225 Changes between versions 0.4b4 and 0.4b5 (released September 22, 1999)
 226 ======================================================================
 227
 228 1.      Integrated the changes from FreeBSD-3.1-RELEASE
 229         (mostly bug fixes, buffer overruns, dump has now an "automatic
 230         tape length calculation" flag, dump/restore can use kerberos now
 231         (this is NOT tested), use environment variables for TAPE and
 232         RMT etc.).
 233
 234 2.      Integrated three RedHat patches ("glibc", "kernel" and "bread" patches)
 235
 236 3.      Corrected a bug in restore when using 'C' option with multi-volumes
 237         tapes (files splited accros two tapes give "size changed" errors
 238         when comparing).
 239
 240 4.      Corrected the long standing bug when dumping multiple tapes.
 241         This works for me, needs further testing.
 242
 243 Changes between versions 0.4b3 and 0.4b4 (released January 17, 1997)
 244 ====================================================================
 245
 246 1.      Dump now runs correctly on kernels 2.1.x
 247         Fix made by Gerald Peters <gapeters@worldnet.att.net>
 248
 249 Changes between versions 0.4b2 and 0.4b3
 250 ========================================
 251
 252 1.      Use realpath() if available
 253
 254 2.      Report statistics
 255
 256 Changes between versions 0.4b1 and 0.4b2
 257 ========================================
 258
 259 1.      Fixed the bug fix from Greg Lutz (I had made a mistake when integrating
 260         the patch)
 261
 262 2.      Fixed restore to make it able to read FreeBSD 2.x dumps again
 263
 264 3.      Fixed configure.in to correctly handle --enable-rmt
 265
 266 Changes between versions 0.3 and 0.4b1
 267 ======================================
 268
 269 1.      Integrated the changes from 4.4BSD-Lite2
 270
 271 2.      Integrated the patches from Debian and Red Hat
 272
 273 3.      Portability changes: use the __u32, __u16, __s32, and __s16 types
 274
 275 4.      Changed dump to use the Ext2fs library to get block addresses.  This
 276         should solve the endianness problem on SparcLinux.
 277
 278 5.      Created a configure.in file (shamelessly stolen from the e2fsprogs
 279         distribution's one) to use autoconf
 280
 281 6.      Fixed a few minor bugs
 282
 283 Changes between versions 0.2e and 0.2f
 284 ======================================
 285
 286 1.      Added the creation of named pipes (fifos) in restore.
 287
 288 2.      Added the -N flag in the restore manual page.
 289
 290 3.      Added the file kernel.patch which contains the llseek() optimization
 291         patch for 1.2.x kernels.
 292
 293 4.      Fixed a bug in the restoration of symbolic links: owner and group were
 294         not restored.
 295
 296 5.      Integrated some changes from FreeBSD 2.2.
 297
 298 6.      Added a call to ftruncate() after restoring each file to restore
 299         correctly files ending by a hole.
 300
 301 Changes between versions 0.2d and 0.2e
 302 ======================================
 303
 304 1.      Fixed a bug in the "set owner/mode" process.  Every file was restored
 305         with owner = root (0) and group = root/wheel/whatever (0).
 306
 307 Changes between versions 0.2c and 0.2d
 308 ======================================
 309
 310 1.      Dump is now able to backup 2GB+ filesystems.
 311
 312 2.      Dump and restore can now be linked as static binaries.
 313
 314 Changes between versions 0.2b and 0.2c
 315 ======================================
 316
 317 1.      Fixed a bug when dumping ``slow'' (i.e. normal) symbolic links.
 318
 319 Changes between versions 0.2a and 0.2b
 320 ======================================
 321
 322 1.      Really fixed the bug that I should have corrected in 0.2a.
 323
 324 2.      Enabled optimization again.
 325
 326 Changes between versions 0.2 and 0.2a
 327 =====================================
 328
 329 1.      Disabled the optimization during compilation.
 330
 331 Changes between versions 0.1 and 0.2
 332 ====================================
 333
 334 1.      Fixed a bug in fstab.c which caused a null pointer to be stored in
 335         the fs_type field (actually, I modified the file fstab.c to make it
 336         use the mntent functions).
 337
 338 2.      Dump and restore now use a 4.3 BSD compatible dump format.  Backups
 339         made by dump should be readable by the BSD restore and backups made
 340         by the BSD dump should be readable by restore.  Unfortunately, this
 341         means that the dump format has changed between version 0.1 and version
 342         0.2 :-(
 343
 344 3.      Dump is now able to backup a subtree, it is no longer limited to whole
 345         filesystems like the BSD version.
 346
 347 4.      Dump now uses ext2_llseek() so it is able to backup filesystems bigger
 348         than 2 GB.
 349
 350 Changes between versions 0.0 and 0.1
 351 ====================================
 352
 353 1.      Now create links rdump and rrestore during the `make install' step.
 354
 355 2.      Linux port specific bugs added to the manual pages
 356
 357 3.      Incorrect estimation of the number of tapes blocks fixed when doing
 358         incremental backups.
 359
 360 4.      Better ls-like format in restore in interactive mode.