CHANGES

   1 $Id: CHANGES,v 1.37 2000/01/25 14:14:12 stelian Exp $
   2
   3 Changes between versions 0.4b13 and 0.4b14 (released ????????????????)
   4 ======================================================================
   5
   6 1.      Fixed a bug in dump which may have caused invalid deleted
   7         directories to be dumped out if they were deleted after the
   8         mapping pass. This could occure on active filesystem and lead
   9         to heap corruption (causing dump malfunction in many possible ways).
  10         Thanks to Jan Sanislo <oystr@cs.washington.edu> for finding this
  11         bug and submitting the patch.
  12
  13 Changes between versions 0.4b12 and 0.4b13 (released January 21, 2000)
  14 ======================================================================
  15
  16 1.      Small Y2K fix in the man pages :). Thanks to Bernhard Sadlowski
  17         <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug.
  18
  19 2.      Removed the requirement to build the RPM as root from the
  20         spec file. Thanks to Christian Weisgerber
  21         <naddy@mips.rhein-neckar.de> for submitting this.
  22
  23 3.      Fixed a bug in dump related to the 'filetype' feature of ext2fs,
  24         causing dump to block when dumping really huge filesystems.
  25         Many thanks to Patrik Schindler <poc@pocnet.net> for
  26         helping me find this bug.
  27
  28 4.      Fixed the treatment for an interrupt signal when dump access
  29         the remote tape through RSH. Thanks to Christian Weisgerber
  30         <naddy@mips.rhein-neckar.de> for providing the patch.
  31
  32 5.      Fixed a bug which was causing dump/restore to display
  33         garbage characters instead of the remote host name.
  34
  35 Changes between versions 0.4b11 and 0.4b12 (released January 8, 2000)
  36 =====================================================================
  37
  38 1.      Small fix in the dump man page. Thanks to Thorsten Kukuk
  39         <kukuk@suse.de> for submitting the patch.
  40
  41 2.      Fix for the exit code when using the size estimate option of
  42         dump. Thanks to Matti Taskinen <mkt@rni.helsinki.fi> for
  43         submitting the patch.
  44
  45 3.      Handle EINTR in atomical reads/writes in dump, which was causing
  46         dump to fail on some systems. Thanks to Eric Jergensen
  47         <eric@dvns.com> for reporting the bug and submitting the patch.
  48
  49 4.      Handle more than 16 characters for the device names in dumpdates.
  50         (up to 255 now). Thanks to Rainer Clasen <bj@ncc.cicely.de> for
  51         tracking down the problem and proposing the solution.
  52
  53 5.      Fixed a bug in dump which prevented the creation of the
  54         dumpdates file when doing a 0-level dump without already
  55         having a dumpdates file. Thanks to Patrik Schindler
  56         <poc@pocnet.net> for reporting the bug.
  57
  58 6.      Changed the way dump 'S' flag reports the size estimate
  59         from number of blocks into bytes (making it compatible
  60         with the Solaris version, and simplifying things for
  61         amanda users). Thanks to Jason L Tibbitts III
  62         <tibbs@math.uh.edu> for reporting the bug.
  63
  64 7.      Fixed a compatibility problem in linux/alpha dump tape format.
  65         Now the linux/alpha dump are (again) compatible with the
  66         other dump formats. But this breaks compatibility with
  67         older dumps made on alpha. Thanks to Mike Tibor
  68         <tibor@lib.uaa.alaska.edu> for helping me in finding this bug.
  69
  70 Changes between versions 0.4b10 and 0.4b11 (released December 5, 1999)
  71 ======================================================================
  72
  73 1.      Added a '--enable-kerberos' to configure.
  74
  75 2.      Added a 'S' option to dump which determines the amount of space
  76         that is needed to perform the dump without actually doing it, similar
  77         to the Sun's ufsdump 'S' option. Patch contributed by Rob Cermak
  78         <cermak@ahab.rutgers.edu>.
  79
  80 3.      Added a 'M' multi-volume option to dump and restore which enables
  81         dumping to multiple files (useful when dumping to an ext2
  82         partition to make several dump files in order to bypass the 2GB
  83         file size limitation). The 'f' argument is treated as a prefix and
  84         the output files will be named <prefix>001, <prefix>002 etc. With
  85         the 'M' flag, restore automatically selects the right file without
  86         asking to enter a new tape each time.
  87
  88 4.      Fixed a memory leak which was causing dump to grow very big
  89         (270MB when dumping a 10GB filesystem...). Thanks to Jason
  90         Fearon <jasonf@netrider.org.au> for reporting the bug.
  91
  92 Changes between versions 0.4b9 and 0.4b10 (released November 21, 1999)
  93 ======================================================================
  94
  95 1.      Make configure test if the system glob routines support
  96         extended syntax (ALTDIRFUNC). If not, use the internal glob
  97         routines instead of system ones. Thanks to Bernhard Sadlowski
  98         <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug
  99         and helping me resolve this and other minor libc5 compiling
 100         glitches.
 101
 102 2.      Fix a problem when dumping a ext2fs with the 'filetype'
 103         feature enabled. Thanks to Patrick J. LoPresti
 104         <patl@cag.lcs.mit.edu> for reporting the bug and to
 105         Theodore Y. Ts'o <tytso@mit.edu> for providing the patch.
 106
 107 3.      Made the nodump flag work on directories. A directory which
 108         has the nodump flag gets never dumped, regardless of its
 109         contents.
 110
 111 4.      Integrate a patch from Jeremy Fitzhardinge <jeremy@goop.org>
 112         which allows dump on an active ext3 filesystem. However, this
 113         is a "quick and dirty" patch which enables backup of an ext3
 114         filesystem through the ext2 compatibility (by ignoring the
 115         NEEDS_RECOVERY bit). The journal file is not recognized and
 116         it is dumped (it should not).
 117
 118 5.      Test the superblock compatibility flags when dumping, in order
 119         to be sure that we know how to deal with specific features.
 120
 121 Changes between versions 0.4b8 and 0.4b9 (released November 5, 1999)
 122 ====================================================================
 123
 124 1.      Use lchown instead of chown, fixing a possible security problem
 125         when restoring symlinks (a malicious user could use this
 126         to deliberately corrupt the ownership of important system files).
 127         Thanks to Chris Siebenmann <cks@utcc.utoronto.ca> for detecting
 128         this and providing the patch.
 129
 130 Changes between versions 0.4b7 and 0.4b8 (released November 3, 1999)
 131 ====================================================================
 132
 133 1.      Put dump sources under CVS, added Id tags in all files so
 134         one can use 'ident' on binary files.
 135
 136 2.      Added the dump/restore version in the usage text so one can
 137         easily verify the version he is using.
 138
 139 3.      Small patch from Nuno Oliveira <nuno@eq.uc.pt> which fixes
 140         a va_start/va_end problem on linux-ppc (always call va_start
 141         va_end in pairs each time we use a vararg function).
 142
 143 4.      Added again the DT_* constants because old libc does not
 144         contain them :(. Thanks to Eric Maisonobe <virnet@nat.fr>
 145         for submitting the bug report.
 146
 147 5.      Use ext2fs_llseek instead of llseek. With recent e2fsprogs
 148         this should enable dumping big (huge) filesystems.
 149
 150 6.      Added the RSH environment variable in order to be able to
 151         use a rsh replacement like ssh when doing remote backups (and
 152         bypass the security limitations of rcmd). Now you can do remote
 153         backups without being root (or making dump setuid root).
 154
 155 7.      Modified again the way dumpdates works. For incremental dumps,
 156         we need to read dumpdates even if we are not using 'u' option.
 157         Thanks to Bdale Garbee <bdale@gag.com> for his ideas on how
 158         this should work.
 159
 160 Changes between versions 0.4b6 and 0.4b7 (released October 8, 1999)
 161 ===================================================================
 162
 163 1.      Removed the 'k' flag from the restore 'about' text if kerberos
 164         was not compiled in.
 165
 166 2.      Prototyped (f)setflags from e2fsprogs and corrected the calls
 167         to them (fsetflags takes a char*, setflags an open fd!).
 168
 169 3.      (f)setflags is called only if the flags aren't empty. If the
 170         file is a special file, a warning is printed, because changing
 171         flags implies opening the device. Normally, a special file
 172         should not have any flag... (Debian bug #29775, patch provided
 173         by Abhijit Dasgupta <abhijit@ans.net>).
 174
 175 4.      Made possible to dump a file system not mentioned in /etc/fstab.
 176         (Debian bug #11904, patch provided by Eirik Fuller <eirik@netcom.com>).
 177
 178 5.      Changed the default behaviour to not create dumpdates
 179         unless 'u' option is specified. Removed the old "debian-patch"
 180         which provided the same thing. (Debian bug #38136, #33818).
 181
 182 6.      Removed all those dump*announce, since they were getting old...
 183
 184 7.      Added warning messages if dumpdates does not exist and
 185         when an inferior level dump does not exist (except for a level 0
 186         dump).
 187
 188 8.      Debugged the glob calls in interactive mode: restore used a
 189         dirent struct which was different from the /usr/include/dirent.h
 190         one (this used to work, is it a glibc2 change?), so none of the
 191         compat glob (which used /usr/include/dirent.h) or the system glob
 192         worked. Restore use now the system dirent (and the system
 193         DT_* constants), which are compatible with BSD ones.
 194
 195 9.      Added a configure flag (--with-dumpdatespath) to specify
 196         the location of dumpdates file. By default, it is
 197         /etc/dumpdates.
 198
 199 10.     Added the "AUTHOR" and "AVAILABILITY" sections and
 200         included the current date/version in man pages.
 201
 202 11.     Corrected the estimation of remaining time when
 203         the operator doesn't change the tapes quickly enough. This
 204         was an old bug, I thought I corrected it, and discovered
 205         that in fact it was corrected in two different places, so
 206         the results canceled each other...
 207
 208 Changes between versions 0.4b5 and 0.4b6 (released October 1, 1999)
 209 ===================================================================
 210
 211 1.      Integrated multiple patches from RedHat, Debian and SuSE:
 212
 213         - tweak dump/itime.c to not try to read dumpdates if the 'u' option
 214           isn't specified.
 215         - several fixes in the man pages.
 216         - update the default tape device to /dev/st0.
 217         - many updates for Linux Alpha (byte ordering, size_t etc).
 218         - buffer overruns.
 219         - use environment variable for TMPDIR (instead of /tmp).
 220         - use sigjmp_buf instead of jmp_buf (RedHat bug #3260).
 221         - workaround egcs bug (RedHat bugs #4281 and #2989).
 222         - wire $(OPT) throughout Makefile's.
 223
 224 2.      Upgrade the dump revision to 1, making possible to dump filesystems
 225         made with e2fsprogs-1.15 or newer. Nothing seems to break...
 226
 227 3.      Fix some compile warnings, prototype all functions.
 228
 229 4.      Use glibc err/glob instead of internal compatibility
 230         routines (only if available).
 231
 232 5.      Fix a compile error on Linux 2.2.7 / libc5 (5.4.44) (patch provided
 233         by Bernhard Sadlowski <sadlowsk@mathematik.uni-bielefeld.de>).
 234
 235 Changes between versions 0.4b4 and 0.4b5 (released September 22, 1999)
 236 ======================================================================
 237
 238 1.      Integrated the changes from FreeBSD-3.1-RELEASE
 239         (mostly bug fixes, buffer overruns, dump has now an "automatic
 240         tape length calculation" flag, dump/restore can use kerberos now
 241         (this is NOT tested), use environment variables for TAPE and
 242         RMT etc.).
 243
 244 2.      Integrated three RedHat patches ("glibc", "kernel" and "bread" patches)
 245
 246 3.      Corrected a bug in restore when using 'C' option with multi-volumes
 247         tapes (files splited accros two tapes give "size changed" errors
 248         when comparing).
 249
 250 4.      Corrected the long standing bug when dumping multiple tapes.
 251         This works for me, needs further testing.
 252
 253 Changes between versions 0.4b3 and 0.4b4 (released January 17, 1997)
 254 ====================================================================
 255
 256 1.      Dump now runs correctly on kernels 2.1.x
 257         Fix made by Gerald Peters <gapeters@worldnet.att.net>
 258
 259 Changes between versions 0.4b2 and 0.4b3
 260 ========================================
 261
 262 1.      Use realpath() if available
 263
 264 2.      Report statistics
 265
 266 Changes between versions 0.4b1 and 0.4b2
 267 ========================================
 268
 269 1.      Fixed the bug fix from Greg Lutz (I had made a mistake when integrating
 270         the patch)
 271
 272 2.      Fixed restore to make it able to read FreeBSD 2.x dumps again
 273
 274 3.      Fixed configure.in to correctly handle --enable-rmt
 275
 276 Changes between versions 0.3 and 0.4b1
 277 ======================================
 278
 279 1.      Integrated the changes from 4.4BSD-Lite2
 280
 281 2.      Integrated the patches from Debian and Red Hat
 282
 283 3.      Portability changes: use the __u32, __u16, __s32, and __s16 types
 284
 285 4.      Changed dump to use the Ext2fs library to get block addresses.  This
 286         should solve the endianness problem on SparcLinux.
 287
 288 5.      Created a configure.in file (shamelessly stolen from the e2fsprogs
 289         distribution's one) to use autoconf
 290
 291 6.      Fixed a few minor bugs
 292
 293 Changes between versions 0.2e and 0.2f
 294 ======================================
 295
 296 1.      Added the creation of named pipes (fifos) in restore.
 297
 298 2.      Added the -N flag in the restore manual page.
 299
 300 3.      Added the file kernel.patch which contains the llseek() optimization
 301         patch for 1.2.x kernels.
 302
 303 4.      Fixed a bug in the restoration of symbolic links: owner and group were
 304         not restored.
 305
 306 5.      Integrated some changes from FreeBSD 2.2.
 307
 308 6.      Added a call to ftruncate() after restoring each file to restore
 309         correctly files ending by a hole.
 310
 311 Changes between versions 0.2d and 0.2e
 312 ======================================
 313
 314 1.      Fixed a bug in the "set owner/mode" process.  Every file was restored
 315         with owner = root (0) and group = root/wheel/whatever (0).
 316
 317 Changes between versions 0.2c and 0.2d
 318 ======================================
 319
 320 1.      Dump is now able to backup 2GB+ filesystems.
 321
 322 2.      Dump and restore can now be linked as static binaries.
 323
 324 Changes between versions 0.2b and 0.2c
 325 ======================================
 326
 327 1.      Fixed a bug when dumping ``slow'' (i.e. normal) symbolic links.
 328
 329 Changes between versions 0.2a and 0.2b
 330 ======================================
 331
 332 1.      Really fixed the bug that I should have corrected in 0.2a.
 333
 334 2.      Enabled optimization again.
 335
 336 Changes between versions 0.2 and 0.2a
 337 =====================================
 338
 339 1.      Disabled the optimization during compilation.
 340
 341 Changes between versions 0.1 and 0.2
 342 ====================================
 343
 344 1.      Fixed a bug in fstab.c which caused a null pointer to be stored in
 345         the fs_type field (actually, I modified the file fstab.c to make it
 346         use the mntent functions).
 347
 348 2.      Dump and restore now use a 4.3 BSD compatible dump format.  Backups
 349         made by dump should be readable by the BSD restore and backups made
 350         by the BSD dump should be readable by restore.  Unfortunately, this
 351         means that the dump format has changed between version 0.1 and version
 352         0.2 :-(
 353
 354 3.      Dump is now able to backup a subtree, it is no longer limited to whole
 355         filesystems like the BSD version.
 356
 357 4.      Dump now uses ext2_llseek() so it is able to backup filesystems bigger
 358         than 2 GB.
 359
 360 Changes between versions 0.0 and 0.1
 361 ====================================
 362
 363 1.      Now create links rdump and rrestore during the `make install' step.
 364
 365 2.      Linux port specific bugs added to the manual pages
 366
 367 3.      Incorrect estimation of the number of tapes blocks fixed when doing
 368         incremental backups.
 369
 370 4.      Better ls-like format in restore in interactive mode.