CHANGES

   1 $Id: CHANGES,v 1.22 1999/11/22 21:39:37 tiniou Exp $
   2
   3 Changes between versions 0.4b10 and 0.4b11 (released ????????????????)
   4 ======================================================================
   5
   6 1.      Added a '--enable-kerberos' to configure.
   7
   8 2.      Added a 'S' option to dump which determines the amount of space
   9         that is needed to perform the dump without actually doint it, similar
  10         to the Sun's ufsdump 'S' option. Patch contributed by Rob Cermak
  11         <cermak@ahab.rutgers.edu>.
  12
  13 3.      Added a 'M' multi-volume option to dump and restore which enables
  14         dumping to multiple files (useful when dumping to an ext2
  15         partition to make several dump files in order to bypass the 2GB
  16         file size limitation). The 'f' argument is treated as a prefix and
  17         the output files will be named <prefix>001, <prefix>002 etc. With
  18         the 'M' flag, restore automatically selects the right file without
  19         asking to enter a new tape each time.
  20
  21 Changes between versions 0.4b9 and 0.4b10 (released November 21, 1999)
  22 ======================================================================
  23
  24 1.      Make configure test if the system glob routines support
  25         extended syntax (ALTDIRFUNC). If not, use the internal glob
  26         routines instead of system ones. Thanks to Bernhard Sadlowski
  27         <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug
  28         and helping me resolve this and other minor libc5 compiling
  29         glitches.
  30
  31 2.      Fix a problem when dumping a ext2fs with the 'filetype'
  32         feature enabled. Thanks to Patrick J. LoPresti
  33         <patl@cag.lcs.mit.edu> for reporting the bug and to
  34         Theodore Y. Ts'o <tytso@mit.edu> for providing the patch.
  35
  36 3.      Made the nodump flag work on directories. A directory which
  37         has the nodump flag gets never dumped, regardless of its
  38         contents.
  39
  40 4.      Integrate a patch from Jeremy Fitzhardinge <jeremy@goop.org>
  41         which allows dump on an active ext3 filesystem. However, this
  42         is a "quick and dirty" patch which enables backup of an ext3
  43         filesystem through the ext2 compatibility (by ignoring the
  44         NEEDS_RECOVERY bit). The journal file is not recognized and
  45         it is dumped (it should not).
  46
  47 5.      Test the superblock compatibility flags when dumping, in order
  48         to be sure that we know how to deal with specific features.
  49
  50 Changes between versions 0.4b8 and 0.4b9 (released November 5, 1999)
  51 ====================================================================
  52
  53 1.      Use lchown instead of chown, fixing a possible security problem
  54         when restoring symlinks (a malicious user could use this
  55         to deliberately corrupt the ownership of important system files).
  56         Thanks to Chris Siebenmann <cks@utcc.utoronto.ca> for detecting
  57         this and providing the patch.
  58
  59 Changes between versions 0.4b7 and 0.4b8 (released November 3, 1999)
  60 ====================================================================
  61
  62 1.      Put dump sources under CVS, added Id tags in all files so
  63         one can use 'ident' on binary files.
  64
  65 2.      Added the dump/restore version in the usage text so one can
  66         easily verify the version he is using.
  67
  68 3.      Small patch from Nuno Oliveira <nuno@eq.uc.pt> which fixes
  69         a va_start/va_end problem on linux-ppc (always call va_start
  70         va_end in pairs each time we use a vararg function).
  71
  72 4.      Added again the DT_* constants because old libc does not
  73         contain them :(. Thanks to Eric Maisonobe <virnet@nat.fr>
  74         for submitting the bug report.
  75
  76 5.      Use ext2fs_llseek instead of llseek. With recent e2fsprogs
  77         this should enable dumping big (huge) filesystems.
  78
  79 6.      Added the RSH environment variable in order to be able to
  80         use a rsh replacement like ssh when doing remote backups (and
  81         bypass the security limitations of rcmd). Now you can do remote
  82         backups without being root (or making dump setuid root).
  83
  84 7.      Modified again the way dumpdates works. For incremental dumps,
  85         we need to read dumpdates even if we are not using 'u' option.
  86         Thanks to Bdale Garbee <bdale@gag.com> for his ideas on how
  87         this should work.
  88
  89 Changes between versions 0.4b6 and 0.4b7 (released October 8, 1999)
  90 ===================================================================
  91
  92 1.      Removed the 'k' flag from the restore 'about' text if kerberos
  93         was not compiled in.
  94
  95 2.      Prototyped (f)setflags from e2fsprogs and corrected the calls
  96         to them (fsetflags takes a char*, setflags an open fd!).
  97
  98 3.      (f)setflags is called only if the flags aren't empty. If the
  99         file is a special file, a warning is printed, because changing
 100         flags implies opening the device. Normally, a special file
 101         should not have any flag... (Debian bug #29775, patch provided
 102         by Abhijit Dasgupta <abhijit@ans.net>).
 103
 104 4.      Made possible to dump a file system not mentioned in /etc/fstab.
 105         (Debian bug #11904, patch provided by Eirik Fuller <eirik@netcom.com>).
 106
 107 5.      Changed the default behaviour to not create dumpdates
 108         unless 'u' option is specified. Removed the old "debian-patch"
 109         which provided the same thing. (Debian bug #38136, #33818).
 110
 111 6.      Removed all those dump*announce, since they were getting old...
 112
 113 7.      Added warning messages if dumpdates does not exist and
 114         when an inferior level dump does not exist (except for a level 0
 115         dump).
 116
 117 8.      Debugged the glob calls in interactive mode: restore used a
 118         dirent struct which was different from the /usr/include/dirent.h
 119         one (this used to work, is it a glibc2 change?), so none of the
 120         compat glob (which used /usr/include/dirent.h) or the system glob
 121         worked. Restore use now the system dirent (and the system
 122         DT_* constants), which are compatible with BSD ones.
 123
 124 9.      Added a configure flag (--with-dumpdatespath) to specify
 125         the location of dumpdates file. By default, it is
 126         /etc/dumpdates.
 127
 128 10.     Added the "AUTHOR" and "AVAILABILITY" sections and
 129         included the current date/version in man pages.
 130
 131 11.     Corrected the estimation of remaining time when
 132         the operator doesn't change the tapes quickly enough. This
 133         was an old bug, I thought I corrected it, and discovered
 134         that in fact it was corrected in two different places, so
 135         the results canceled each other...
 136
 137 Changes between versions 0.4b5 and 0.4b6 (released October 1, 1999)
 138 ===================================================================
 139
 140 1.      Integrated multiple patches from RedHat, Debian and SuSE:
 141
 142         - tweak dump/itime.c to not try to read dumpdates if the 'u' option
 143           isn't specified.
 144         - several fixes in the man pages.
 145         - update the default tape device to /dev/st0.
 146         - many updates for Linux Alpha (byte ordering, size_t etc).
 147         - buffer overruns.
 148         - use environment variable for TMPDIR (instead of /tmp).
 149         - use sigjmp_buf instead of jmp_buf (RedHat bug #3260).
 150         - workaround egcs bug (RedHat bugs #4281 and #2989).
 151         - wire $(OPT) throughout Makefile's.
 152
 153 2.      Upgrade the dump revision to 1, making possible to dump filesystems
 154         made with e2fsprogs-1.15 or newer. Nothing seems to break...
 155
 156 3.      Fix some compile warnings, prototype all functions.
 157
 158 4.      Use glibc err/glob instead of internal compatibility
 159         routines (only if available).
 160
 161 5.      Fix a compile error on Linux 2.2.7 / libc5 (5.4.44) (patch provided
 162         by Bernhard Sadlowski <sadlowsk@mathematik.uni-bielefeld.de>).
 163
 164 Changes between versions 0.4b4 and 0.4b5 (released September 22, 1999)
 165 ======================================================================
 166
 167 1.      Integrated the changes from FreeBSD-3.1-RELEASE
 168         (mostly bug fixes, buffer overruns, dump has now an "automatic
 169         tape length calculation" flag, dump/restore can use kerberos now
 170         (this is NOT tested), use environment variables for TAPE and
 171         RMT etc.).
 172
 173 2.      Integrated three RedHat patches ("glibc", "kernel" and "bread" patches)
 174
 175 3.      Corrected a bug in restore when using 'C' option with multi-volumes
 176         tapes (files splited accros two tapes give "size changed" errors
 177         when comparing).
 178
 179 4.      Corrected the long standing bug when dumping multiple tapes.
 180         This works for me, needs further testing.
 181
 182 Changes between versions 0.4b3 and 0.4b4 (released January 17, 1997)
 183 ====================================================================
 184
 185 1.      Dump now runs correctly on kernels 2.1.x
 186         Fix made by Gerald Peters <gapeters@worldnet.att.net>
 187
 188 Changes between versions 0.4b2 and 0.4b3
 189 ========================================
 190
 191 1.      Use realpath() if available
 192
 193 2.      Report statistics
 194
 195 Changes between versions 0.4b1 and 0.4b2
 196 ========================================
 197
 198 1.      Fixed the bug fix from Greg Lutz (I had made a mistake when integrating
 199         the patch)
 200
 201 2.      Fixed restore to make it able to read FreeBSD 2.x dumps again
 202
 203 3.      Fixed configure.in to correctly handle --enable-rmt
 204
 205 Changes between versions 0.3 and 0.4b1
 206 ======================================
 207
 208 1.      Integrated the changes from 4.4BSD-Lite2
 209
 210 2.      Integrated the patches from Debian and Red Hat
 211
 212 3.      Portability changes: use the __u32, __u16, __s32, and __s16 types
 213
 214 4.      Changed dump to use the Ext2fs library to get block addresses.  This
 215         should solve the endianness problem on SparcLinux.
 216
 217 5.      Created a configure.in file (shamelessly stolen from the e2fsprogs
 218         distribution's one) to use autoconf
 219
 220 6.      Fixed a few minor bugs
 221
 222 Changes between versions 0.2e and 0.2f
 223 ======================================
 224
 225 1.      Added the creation of named pipes (fifos) in restore.
 226
 227 2.      Added the -N flag in the restore manual page.
 228
 229 3.      Added the file kernel.patch which contains the llseek() optimization
 230         patch for 1.2.x kernels.
 231
 232 4.      Fixed a bug in the restoration of symbolic links: owner and group were
 233         not restored.
 234
 235 5.      Integrated some changes from FreeBSD 2.2.
 236
 237 6.      Added a call to ftruncate() after restoring each file to restore
 238         correctly files ending by a hole.
 239
 240 Changes between versions 0.2d and 0.2e
 241 ======================================
 242
 243 1.      Fixed a bug in the "set owner/mode" process.  Every file was restored
 244         with owner = root (0) and group = root/wheel/whatever (0).
 245
 246 Changes between versions 0.2c and 0.2d
 247 ======================================
 248
 249 1.      Dump is now able to backup 2GB+ filesystems.
 250
 251 2.      Dump and restore can now be linked as static binaries.
 252
 253 Changes between versions 0.2b and 0.2c
 254 ======================================
 255
 256 1.      Fixed a bug when dumping ``slow'' (i.e. normal) symbolic links.
 257
 258 Changes between versions 0.2a and 0.2b
 259 ======================================
 260
 261 1.      Really fixed the bug that I should have corrected in 0.2a.
 262
 263 2.      Enabled optimization again.
 264
 265 Changes between versions 0.2 and 0.2a
 266 =====================================
 267
 268 1.      Disabled the optimization during compilation.
 269
 270 Changes between versions 0.1 and 0.2
 271 ====================================
 272
 273 1.      Fixed a bug in fstab.c which caused a null pointer to be stored in
 274         the fs_type field (actually, I modified the file fstab.c to make it
 275         use the mntent functions).
 276
 277 2.      Dump and restore now use a 4.3 BSD compatible dump format.  Backups
 278         made by dump should be readable by the BSD restore and backups made
 279         by the BSD dump should be readable by restore.  Unfortunately, this
 280         means that the dump format has changed between version 0.1 and version
 281         0.2 :-(
 282
 283 3.      Dump is now able to backup a subtree, it is no longer limited to whole
 284         filesystems like the BSD version.
 285
 286 4.      Dump now uses ext2_llseek() so it is able to backup filesystems bigger
 287         than 2 GB.
 288
 289 Changes between versions 0.0 and 0.1
 290 ====================================
 291
 292 1.      Now create links rdump and rrestore during the `make install' step.
 293
 294 2.      Linux port specific bugs added to the manual pages
 295
 296 3.      Incorrect estimation of the number of tapes blocks fixed when doing
 297         incremental backups.
 298
 299 4.      Better ls-like format in restore in interactive mode.