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gnu tar 源码包。 tar 软件是 Unix 系统下的一个打包软件

** Compare mode (tar d) hung when trying to compare file contents.
** Previous versions in certain cases failed to restore directory
modification times.
** When creating an archive, do not attempt to store files whose
meta-data cannot be stored in the header due to format limitations
(for ustar and v7 formats).
** The --version option now also outputs information about copyright,
license, and credits.  This reverts to the behavior of tar 1.14 and
earlier, and conforms to the GNU coding standards.  The --license (-L)
option introduced in tar 1.15 has been removed, since it's no longer
needed.


version 1.15.1 - Sergey Poznyakoff, 2004-12-21

This version fixes a bug introduced in 1.15 which caused
tar to refuse to extract files from standard input.


version 1.15 - Sergey Poznyakoff, 2004-12-20

* Compressed archives are recognised automatically, it is no longer
necessary to specify -Z, -z, or -j options to read them.  Thus, you can
now run `tar tf archive.tar.gz'.

* When restoring incremental dumps, --one-file-system option
prevents directory hierarchies residing on different devices
from being purged.

With the previous versions of tar it was dangerous to create
incremental dumps with --one-file-system option, since they
would recursively remove mount points when restoring from the
back up.  This change fixes the bug.

* Renamed --strip-path to --strip-components for consistency with
the GNU convention.

* Skipping archive members is sped up if the archive media supports
seeks.

* Restore script starts restoring only if it is given --all (-a) option,
or some patterns.  This is to prevent accidental restores.

* `tar --verify' prints a warning if during archive creation some of
the file names had their prefixes stripped off.

* New option --exclude-caches instructs tar to exclude cache directories
automatically on archive creation.  Cache directories are those
containing a standardized tag file, as specified at:

	http://www.brynosaurus.com/cachedir/spec.html

* New configure option --with-rmt allows to specify full path name to
the `rmt' utility.  This supersedes DEFAULT_RMT_COMMAND variable
introduced in version 1.14

* New configure variable DEFAULT_RMT_DIR allows to specify the directory
where to install `rmt' utility.  This is necessary since modifying
--libexecdir as was suggested for version 1.14 produced a side effect: it
also modified installation prefix for backup scripts (if
--enable-backup-scripts was given).

* Bug fixes:
** Fixed flow in recognizing files to be included in incremental dumps.
** Correctly recognize sparse archive members when used with -T option.
** GNU multivolume headers cannot store filenames longer than 100 characters.
Do not allow multivolume archives to begin with such filenames.
** If a member with link count > 2 was stored in the archive twice,
previous versions of tar were not able to extract it, since they
were trying to link the file to itself, which always failed and
lead to removing the already extracted copy.  Preserve the first
extracted copy in such cases.
** Restore script was passing improper argument to tar --listed option (which
didn't affect the functionality, but was logically incorrect).
** Fixed verification of created archives.
** Fixed unquoting of file names containing backslash escapes (previous
versions failed to recognize \a and \v).
** When attempting to delete a non-existing member from the archive, previous
versions of tar used to overwrite last archive block with zeroes.


version 1.14 - Sergey Poznyakoff, 2004-05-11

* Added support for POSIX.1-2001 and ustar archive formats.
* New option --format allows to select the output archive format
* The default output format can be selected at configuration time
  by presetting the environment variable DEFAULT_ARCHIVE_FORMAT.
  Allowed values are GNU, V7, OLDGNU and POSIX.
* New option --strip-path allows to cut off a given number of
  path elements from the name of the file being extracted.

* New options --index-file, --no-overwrite-dir.  The --overwrite-dir
  option is now the default; use --no-overwrite-dir if you prefer
  the previous default behavior.

* The semantics of -o option is changed.  When extracting, it
  does the same as --no-same-owner GNU tar option.  This is compatible
  with UNIX98 tar.  Otherwise, its effect is the same as that of
  --old-archive option.  This latter is deprecated and will be removed
  in future.

* New option --check-links prints a message if not all links are dumped
  for a file being archived.  This corresponds to the UNIX98 -l option.
  The current semantics of the -l option is retained for compatibility
  with previous releases, however such usage is strongly deprecated as
  the option will change to its UNIX98 semantics in the future releases.

* New option --occurrence[=N] can be used in conjunction with one of
  the subcommands --delete, --diff, --extract or --list when a list of
  files is given either on the command line or via -T option.  This
  option instructs tar to process only the Nth occurrence of each named
  file.  N defaults to 1, so `tar -x -f archive --occurrence filename'
  extracts the first occurrence of `filename' from `archive'
  and terminates without scanning to the end of the archive.

* New option --pax-option allows to control the handling of POSIX
  keywords in `pax' extended headers.  It is equivalent to `pax'
  -o option.

* --incremental and --listed-incremental options work correctly on
  individual files, as well as on directories.

* New scripts: backup (replaces old level-0 and level-1) and restore.
The scripts are compiled and installed if --enable-backup-scripts
option is given to configure.

* By default tar searches "rmt" utility in "$prefix/libexec/rmt",
which is consistent with the location where the version of "rmt"
included in the package is installed.  Previous versions of tar
used "/etc/rmt".  To install "rmt" to its traditional location,
run configure with option --libexecdir=/etc.  Otherwise, if you
already have rmt installed and wish to use it, instead of the
shipped in version, set the variable DEFAULT_RMT_COMMAND to
the full path name of the utility, e.g., ./configure
DEFAULT_RMT_COMMAND=/etc/rmt.

Notice also that the full path name of the "rmt" utility to
use can be set at runtime, by giving option --rmt-command to
tar.

* Removed obsolete command line options:
** --absolute-paths superseded by --absolute-names
** --block-compress is not needed any longer
** --block-size superseded by --blocking-factor
** --modification-time superseded by --touch
** --read-full-blocks superseded by --read-full-records
** --record-number superseded by --block-number
** --version-control superseded by --backup

* New message translations fi (Finnish), gl (Galician), hr (Croatian),
  hu (Hungarian), ms (Malaysian), nb (Norwegian), ro (Romanian), sk
  (Slovak), zh_CN (Chinese simplified), zh_TW (Chinese traditional).
  The code 'no' for Norwegian (Bokmål) has been withdrawn; use 'nb' instead.

* Bug fixes.


version 1.13.25 - Paul Eggert, 2001-09-26

* Bug fixes.


version 1.13.24 - Paul Eggert, 2001-09-22

* New option --overwrite-dir.
* Fixes for buffer overrun, porting, and copyright notice problems.
* The message translations for Korean are available again.


version 1.13.23 - Paul Eggert, 2001-09-13

* Bug, porting, and copyright notice fixes.


version 1.13.22 - Paul Eggert, 2001-08-29

* Bug fixes.


version 1.13.21 - Paul Eggert, 2001-08-28

* Porting and copyright notice fixes.


version 1.13.20 - Paul Eggert, 2001-08-27

* Some bugs were fixed:
  - security problems
  - hard links to symbolic links

* New option --recursion (the default) that is the inverse of --no-recursion.

* New options --anchored, --ignore-case, --wildcards,
  --wildcards-match-slash, and their negations (e.g., --no-anchored).
  Along with --recursion and --no-recursion, these options control how
  exclude patterns are interpreted.

* The default interpretation of exclude patterns is now --no-anchored
  --no-ignore-case --recursion --wildcards --wildcards-match-slash.
  This is a quiet change to the semantics of --exclude.  The previous
  semantics were a failed attempt at backward compatibility but it
  became clear that the semantics were puzzling and did not satisfy
  everybody.  Rather than continue to try to revive that dead horse we
  thought it better to substitute cleaner semantics, with options so
  that you can change the behavior more to your liking.

* New message translations for Indonesian and Turkish.
  The translation for Korean has been withdrawn due to encoding errors.
  It will be reissued once those are fixed.


version 1.13.19 - Paul Eggert, 2001-01-13

* The -I option has been withdrawn, as it was buggy and confusing.
  Eventually it is planned to be reintroduced, with the same meaning as -T.

* With an option like -N DATE, if DATE starts with "/" or ".", it is taken
  to be a file name; the last-modified time of that file is used as the date.


version 1.13.18 - Paul Eggert, 2000-10-29

* Some security problems have been fixed.  `tar -x' now modifies only
  files under the working directory, unless you also specify an unsafe
  option like --absolute-names or --overwrite.

* The short name of the --bzip option has been changed to -j,
  and -I is now an alias for -T, for compatibility with Solaris tar.

* The manual is now distributed under the GNU Free Documentation License.

* The new environment variable TAR_OPTIONS holds default command-line options.

* The --no-recursion option now affects extraction too.

* The wording in some diagnostics has been changed slightly.

* Snapshot files now record whether each file was accessed via NFS.
  The new file format is upward- and downward-compatible with the old.

* New language supported: da.

* Compilation by traditional (K&R) C compilers is no longer supported.
  If you still use such a compiler, please use GCC instead.

* This version of tar works best with GNU gzip test version 1.3 or later.
  Please see <ftp://alpha.gnu.org/gnu/gzip/>.

* `tar --delete -f -' now works again.


version 1.13.17 - Paul Eggert, 2000-01-07.

* `tar --delete -f -' is no longer allowed; it was too buggy.
* Diagnostic messages have been made more regular and consistent.


version 1.13.16 - Paul Eggert, 1999-12-13.

* By default, tar now refuses to overwrite an existing file when
  extracting files from an archive; instead, it removes the file
  before extracting it.  If the existing file is a symbolic link, the
  link is removed and not the pointed-to file.  There is one
  exception: existing nonempty directories are not removed, nor are
  their ownerships or permissions extracted.  This fixes some
  longstanding security problems.

  The new --overwrite option enables the old default behavior.

  For regular files, tar implements this change by using the O_EXCL
  option of `open' to ensure that it creates the file; if this fails, it
  removes the file and tries again.  This is similar to the behavior of
  the --unlink-first option, but it is faster in the common case of
  extracting a new directory.

* By default, tar now ignores file names containing a component of `..'
  when extracting, and warns about such file names when creating an archive.
  To enable the old behavior, use the -P or --absolute-names option.

* Tar now handles file names with multibyte encodings (e.g., UTF-8, Shift-JIS)
  correctly.  It relies on the mbrtowc function to handle multibyte characters.

* The file generated by -g or --listed-incremental now uses a format
  that is independent of locale, so that users need not worry about
  locale when restoring a backup.  This is needed for proper support
  of multibyte characters.  Old-format files can still be read, and
  older versions of GNU tar can read new-format files, unless member
  names have multibyte chars.

* Many diagnostics have been changed slightly, so that file names are
  now output unambiguously.  File names in diagnostics now are either
  `quoted like this' (in the default C locale) or are followed by
  colon, newline, or space, depending on context.  Unprintable
  characters are escaped with a C-like backslash conventions.
  Terminating characters (e.g., close-quote, colon, newline)
  are also escaped as needed.

* tar now ignores socket files when creating an archive.
  Previously tar archived sockets as fifos, which caused problems.


version 1.13.15 - Paul Eggert, 1999-12-03.

* If a file's ctime changes when being archived, report an error.
  Previously tar looked at mtime, which missed some errors.


version 1.13.14 - Paul Eggert, 1999-11-07.

* New translations ja, pt_BR.
* New options --help and --version for rmt.
* Ignore Solaris door files when creating an archive.


version 1.13.13 - Paul Eggert, 1999-10-11.

* Invalid headers in tar files now elicit errors, not just warnings.
* `tar --version' output conforms to the latest GNU coding standards.
* If you specify an invalid date, `tar' now substitutes (time_t) -1.
* `configure --with-dmalloc' is no longer available.


version 1.13.12 - Paul Eggert, 1999-09-24.

* `tar' now supports hard links to symbolic links.

* New options --no-same-owner, --no-same-permissions.

* --total now also outputs a human-readable size, and a throughput value.

* `tar' now uses two's-complement base-256 when outputting header
  values that are out of the range of the standard unsigned base-8
  format.  This affects archive members with negative or huge time
  stamps or uids, and archive members 8 GB or larger.  The new tar
  archives cannot be read by traditional tar, or by older versions of
  GNU tar.  Use the --old-archive option to revert to the old
  behavior, which uses unportable representations for negative values,
  and which rejects large files.

* On 32-bit hosts, `tar' now assumes that an incoming time stamp T in
  the range 2**31 <= T < 2**32 represents the negative time (T -
  2**32).  This behavior is nonstandard and is not portable to 64-bit
  time_t hosts, so `tar' issues a warning.