CHANGES

   1 $Id: CHANGES,v 1.31 2000/01/09 23:37:01 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 Changes between versions 0.4b11 and 0.4b12 (released January 8, 2000)
  10 =====================================================================
  11
  12 1.      Small fix in the dump man page. Thanks to Thorsten Kukuk
  13         <kukuk@suse.de> for submitting the patch.
  14
  15 2.      Fix for the exit code when using the size estimate option of
  16         dump. Thanks to Matti Taskinen <mkt@rni.helsinki.fi> for
  17         submitting the patch.
  18
  19 3.      Handle EINTR in atomical reads/writes in dump, which was causing
  20         dump to fail on some systems. Thanks to Eric Jergensen
  21         <eric@dvns.com> for reporting the bug and submitting the patch.
  22
  23 4.      Handle more than 16 characters for the device names in dumpdates.
  24         (up to 255 now). Thanks to Rainer Clasen <bj@ncc.cicely.de> for
  25         tracking down the problem and proposing the solution.
  26
  27 5.      Fixed a bug in dump which prevented the creation of the
  28         dumpdates file when doing a 0-level dump without already
  29         having a dumpdates file. Thanks to Patrik Schindler
  30         <poc@pocnet.net> for reporting the bug.
  31
  32 6.      Changed the way dump 'S' flag reports the size estimate
  33         from number of blocks into bytes (making it compatible
  34         with the Solaris version, and simplifying things for
  35         amanda users). Thanks to Jason L Tibbitts III
  36         <tibbs@math.uh.edu> for reporting the bug.
  37
  38 7.      Fixed a compatibility problem in linux/alpha dump tape format.
  39         Now the linux/alpha dump are (again) compatible with the
  40         other dump formats. But this breaks compatibility with
  41         older dumps made on alpha. Thanks to Mike Tibor
  42         <tibor@lib.uaa.alaska.edu> for helping me in finding this bug.
  43
  44 Changes between versions 0.4b10 and 0.4b11 (released December 5, 1999)
  45 ======================================================================
  46
  47 1.      Added a '--enable-kerberos' to configure.
  48
  49 2.      Added a 'S' option to dump which determines the amount of space
  50         that is needed to perform the dump without actually doing it, similar
  51         to the Sun's ufsdump 'S' option. Patch contributed by Rob Cermak
  52         <cermak@ahab.rutgers.edu>.
  53
  54 3.      Added a 'M' multi-volume option to dump and restore which enables
  55         dumping to multiple files (useful when dumping to an ext2
  56         partition to make several dump files in order to bypass the 2GB
  57         file size limitation). The 'f' argument is treated as a prefix and
  58         the output files will be named <prefix>001, <prefix>002 etc. With
  59         the 'M' flag, restore automatically selects the right file without
  60         asking to enter a new tape each time.
  61
  62 4.      Fixed a memory leak which was causing dump to grow very big
  63         (270MB when dumping a 10GB filesystem...). Thanks to Jason
  64         Fearon <jasonf@netrider.org.au> for reporting the bug.
  65
  66 Changes between versions 0.4b9 and 0.4b10 (released November 21, 1999)
  67 ======================================================================
  68
  69 1.      Make configure test if the system glob routines support
  70         extended syntax (ALTDIRFUNC). If not, use the internal glob
  71         routines instead of system ones. Thanks to Bernhard Sadlowski
  72         <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug
  73         and helping me resolve this and other minor libc5 compiling
  74         glitches.
  75
  76 2.      Fix a problem when dumping a ext2fs with the 'filetype'
  77         feature enabled. Thanks to Patrick J. LoPresti
  78         <patl@cag.lcs.mit.edu> for reporting the bug and to
  79         Theodore Y. Ts'o <tytso@mit.edu> for providing the patch.
  80
  81 3.      Made the nodump flag work on directories. A directory which
  82         has the nodump flag gets never dumped, regardless of its
  83         contents.
  84
  85 4.      Integrate a patch from Jeremy Fitzhardinge <jeremy@goop.org>
  86         which allows dump on an active ext3 filesystem. However, this
  87         is a "quick and dirty" patch which enables backup of an ext3
  88         filesystem through the ext2 compatibility (by ignoring the
  89         NEEDS_RECOVERY bit). The journal file is not recognized and
  90         it is dumped (it should not).
  91
  92 5.      Test the superblock compatibility flags when dumping, in order
  93         to be sure that we know how to deal with specific features.
  94
  95 Changes between versions 0.4b8 and 0.4b9 (released November 5, 1999)
  96 ====================================================================
  97
  98 1.      Use lchown instead of chown, fixing a possible security problem
  99         when restoring symlinks (a malicious user could use this
 100         to deliberately corrupt the ownership of important system files).
 101         Thanks to Chris Siebenmann <cks@utcc.utoronto.ca> for detecting
 102         this and providing the patch.
 103
 104 Changes between versions 0.4b7 and 0.4b8 (released November 3, 1999)
 105 ====================================================================
 106
 107 1.      Put dump sources under CVS, added Id tags in all files so
 108         one can use 'ident' on binary files.
 109
 110 2.      Added the dump/restore version in the usage text so one can
 111         easily verify the version he is using.
 112
 113 3.      Small patch from Nuno Oliveira <nuno@eq.uc.pt> which fixes
 114         a va_start/va_end problem on linux-ppc (always call va_start
 115         va_end in pairs each time we use a vararg function).
 116
 117 4.      Added again the DT_* constants because old libc does not
 118         contain them :(. Thanks to Eric Maisonobe <virnet@nat.fr>
 119         for submitting the bug report.
 120
 121 5.      Use ext2fs_llseek instead of llseek. With recent e2fsprogs
 122         this should enable dumping big (huge) filesystems.
 123
 124 6.      Added the RSH environment variable in order to be able to
 125         use a rsh replacement like ssh when doing remote backups (and
 126         bypass the security limitations of rcmd). Now you can do remote
 127         backups without being root (or making dump setuid root).
 128
 129 7.      Modified again the way dumpdates works. For incremental dumps,
 130         we need to read dumpdates even if we are not using 'u' option.
 131         Thanks to Bdale Garbee <bdale@gag.com> for his ideas on how
 132         this should work.
 133
 134 Changes between versions 0.4b6 and 0.4b7 (released October 8, 1999)
 135 ===================================================================
 136
 137 1.      Removed the 'k' flag from the restore 'about' text if kerberos
 138         was not compiled in.
 139
 140 2.      Prototyped (f)setflags from e2fsprogs and corrected the calls
 141         to them (fsetflags takes a char*, setflags an open fd!).
 142
 143 3.      (f)setflags is called only if the flags aren't empty. If the
 144         file is a special file, a warning is printed, because changing
 145         flags implies opening the device. Normally, a special file
 146         should not have any flag... (Debian bug #29775, patch provided
 147         by Abhijit Dasgupta <abhijit@ans.net>).
 148
 149 4.      Made possible to dump a file system not mentioned in /etc/fstab.
 150         (Debian bug #11904, patch provided by Eirik Fuller <eirik@netcom.com>).
 151
 152 5.      Changed the default behaviour to not create dumpdates
 153         unless 'u' option is specified. Removed the old "debian-patch"
 154         which provided the same thing. (Debian bug #38136, #33818).
 155
 156 6.      Removed all those dump*announce, since they were getting old...
 157
 158 7.      Added warning messages if dumpdates does not exist and
 159         when an inferior level dump does not exist (except for a level 0
 160         dump).
 161
 162 8.      Debugged the glob calls in interactive mode: restore used a
 163         dirent struct which was different from the /usr/include/dirent.h
 164         one (this used to work, is it a glibc2 change?), so none of the
 165         compat glob (which used /usr/include/dirent.h) or the system glob
 166         worked. Restore use now the system dirent (and the system
 167         DT_* constants), which are compatible with BSD ones.
 168
 169 9.      Added a configure flag (--with-dumpdatespath) to specify
 170         the location of dumpdates file. By default, it is
 171         /etc/dumpdates.
 172
 173 10.     Added the "AUTHOR" and "AVAILABILITY" sections and
 174         included the current date/version in man pages.
 175
 176 11.     Corrected the estimation of remaining time when
 177         the operator doesn't change the tapes quickly enough. This
 178         was an old bug, I thought I corrected it, and discovered
 179         that in fact it was corrected in two different places, so
 180         the results canceled each other...
 181
 182 Changes between versions 0.4b5 and 0.4b6 (released October 1, 1999)
 183 ===================================================================
 184
 185 1.      Integrated multiple patches from RedHat, Debian and SuSE:
 186
 187         - tweak dump/itime.c to not try to read dumpdates if the 'u' option
 188           isn't specified.
 189         - several fixes in the man pages.
 190         - update the default tape device to /dev/st0.
 191         - many updates for Linux Alpha (byte ordering, size_t etc).
 192         - buffer overruns.
 193         - use environment variable for TMPDIR (instead of /tmp).
 194         - use sigjmp_buf instead of jmp_buf (RedHat bug #3260).
 195         - workaround egcs bug (RedHat bugs #4281 and #2989).
 196         - wire $(OPT) throughout Makefile's.
 197
 198 2.      Upgrade the dump revision to 1, making possible to dump filesystems
 199         made with e2fsprogs-1.15 or newer. Nothing seems to break...
 200
 201 3.      Fix some compile warnings, prototype all functions.
 202
 203 4.      Use glibc err/glob instead of internal compatibility
 204         routines (only if available).
 205
 206 5.      Fix a compile error on Linux 2.2.7 / libc5 (5.4.44) (patch provided
 207         by Bernhard Sadlowski <sadlowsk@mathematik.uni-bielefeld.de>).
 208
 209 Changes between versions 0.4b4 and 0.4b5 (released September 22, 1999)
 210 ======================================================================
 211
 212 1.      Integrated the changes from FreeBSD-3.1-RELEASE
 213         (mostly bug fixes, buffer overruns, dump has now an "automatic
 214         tape length calculation" flag, dump/restore can use kerberos now
 215         (this is NOT tested), use environment variables for TAPE and
 216         RMT etc.).
 217
 218 2.      Integrated three RedHat patches ("glibc", "kernel" and "bread" patches)
 219
 220 3.      Corrected a bug in restore when using 'C' option with multi-volumes
 221         tapes (files splited accros two tapes give "size changed" errors
 222         when comparing).
 223
 224 4.      Corrected the long standing bug when dumping multiple tapes.
 225         This works for me, needs further testing.
 226
 227 Changes between versions 0.4b3 and 0.4b4 (released January 17, 1997)
 228 ====================================================================
 229
 230 1.      Dump now runs correctly on kernels 2.1.x
 231         Fix made by Gerald Peters <gapeters@worldnet.att.net>
 232
 233 Changes between versions 0.4b2 and 0.4b3
 234 ========================================
 235
 236 1.      Use realpath() if available
 237
 238 2.      Report statistics
 239
 240 Changes between versions 0.4b1 and 0.4b2
 241 ========================================
 242
 243 1.      Fixed the bug fix from Greg Lutz (I had made a mistake when integrating
 244         the patch)
 245
 246 2.      Fixed restore to make it able to read FreeBSD 2.x dumps again
 247
 248 3.      Fixed configure.in to correctly handle --enable-rmt
 249
 250 Changes between versions 0.3 and 0.4b1
 251 ======================================
 252
 253 1.      Integrated the changes from 4.4BSD-Lite2
 254
 255 2.      Integrated the patches from Debian and Red Hat
 256
 257 3.      Portability changes: use the __u32, __u16, __s32, and __s16 types
 258
 259 4.      Changed dump to use the Ext2fs library to get block addresses.  This
 260         should solve the endianness problem on SparcLinux.
 261
 262 5.      Created a configure.in file (shamelessly stolen from the e2fsprogs
 263         distribution's one) to use autoconf
 264
 265 6.      Fixed a few minor bugs
 266
 267 Changes between versions 0.2e and 0.2f
 268 ======================================
 269
 270 1.      Added the creation of named pipes (fifos) in restore.
 271
 272 2.      Added the -N flag in the restore manual page.
 273
 274 3.      Added the file kernel.patch which contains the llseek() optimization
 275         patch for 1.2.x kernels.
 276
 277 4.      Fixed a bug in the restoration of symbolic links: owner and group were
 278         not restored.
 279
 280 5.      Integrated some changes from FreeBSD 2.2.
 281
 282 6.      Added a call to ftruncate() after restoring each file to restore
 283         correctly files ending by a hole.
 284
 285 Changes between versions 0.2d and 0.2e
 286 ======================================
 287
 288 1.      Fixed a bug in the "set owner/mode" process.  Every file was restored
 289         with owner = root (0) and group = root/wheel/whatever (0).
 290
 291 Changes between versions 0.2c and 0.2d
 292 ======================================
 293
 294 1.      Dump is now able to backup 2GB+ filesystems.
 295
 296 2.      Dump and restore can now be linked as static binaries.
 297
 298 Changes between versions 0.2b and 0.2c
 299 ======================================
 300
 301 1.      Fixed a bug when dumping ``slow'' (i.e. normal) symbolic links.
 302
 303 Changes between versions 0.2a and 0.2b
 304 ======================================
 305
 306 1.      Really fixed the bug that I should have corrected in 0.2a.
 307
 308 2.      Enabled optimization again.
 309
 310 Changes between versions 0.2 and 0.2a
 311 =====================================
 312
 313 1.      Disabled the optimization during compilation.
 314
 315 Changes between versions 0.1 and 0.2
 316 ====================================
 317
 318 1.      Fixed a bug in fstab.c which caused a null pointer to be stored in
 319         the fs_type field (actually, I modified the file fstab.c to make it
 320         use the mntent functions).
 321
 322 2.      Dump and restore now use a 4.3 BSD compatible dump format.  Backups
 323         made by dump should be readable by the BSD restore and backups made
 324         by the BSD dump should be readable by restore.  Unfortunately, this
 325         means that the dump format has changed between version 0.1 and version
 326         0.2 :-(
 327
 328 3.      Dump is now able to backup a subtree, it is no longer limited to whole
 329         filesystems like the BSD version.
 330
 331 4.      Dump now uses ext2_llseek() so it is able to backup filesystems bigger
 332         than 2 GB.
 333
 334 Changes between versions 0.0 and 0.1
 335 ====================================
 336
 337 1.      Now create links rdump and rrestore during the `make install' step.
 338
 339 2.      Linux port specific bugs added to the manual pages
 340
 341 3.      Incorrect estimation of the number of tapes blocks fixed when doing
 342         incremental backups.
 343
 344 4.      Better ls-like format in restore in interactive mode.