Version 1.19

(exclude_vcs_files): New function

.cvsignore

@@ -3,7 +3,6 @@
 *.tar
 .bootstrap
 ABOUT-NLS
-COPYING
 INSTALL
 Makefile
 Makefile.in

AUTHORS

@@ -1,34 +1,15 @@
 Authors of GNU tar.
 
-The following contributions warranted legal paper exchanges with the
-Free Software Foundation.  Also see files ChangeLog and THANKS.
+Public domain tar was written by John Gilmore, with contributions from
+Henry Spencer, Fred Fish, Ian Darwin, Geoff Collyer, Stan Barber, Guy
+Harris, Dave Brower, Richard Todd, Michael Rendell, Stu Heiss, and
+Rich Salz.
 
-TAR     Sergey Poznyakoff 2003-10
-Assigns his past and future changes.
+The FSF version, named GNU tar, was derived from public domain tar by
+Jay Fenlason and Joy Kendall.  Amy Gorin and Melissa Weisshaus
+contributed to the manual.  GNU tar has been maintained in turn by
+Thomas Bushnell BSG, François Pinard, Paul Eggert, and Sergey
+Poznyakoff.
 
-TAR	Paul Eggert	2000-10
-Assigns his past and future changes.
-
-TAR     Jay Fenlason
-Assigns his changes.
-
-TAR     Richard E Salz          1993-03-11
-Disclaims changes to getdate.y.
-
-TAR MANUAL (?)	Amy Gorin	(US 1963)	1995-01-10
-Assigns the Tar Manual.
-
-TAR	Francois Pinard	Canada 1949	1996-02-01
-Assigns past and future changes.
-
-TAR	Melissa Weisshaus	US 1966	1997-04-09
-Assigns changes to the manual and future changes.
-melissa@gnu.ai.mit.edu
-
-TAR	Thomas Michael Innis Bushnell	US 1967	1997-04-09
-Assigns changes.
-thomas@gnu.ai.mit.edu
-
-TAR	Thomas Michael Innis Bushnell	US 1967	1997-04-09
-Assigns changes to manual.
-thomas@gnu.ai.mit.edu
+Many others have contributed to GNU tar; please see the files THANKS
+and ChangeLog.

COPYING

@@ -0,0 +1,676 @@
+
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+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+		     END OF TERMS AND CONDITIONS
+
+	    How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
+

ChangeLog

@@ -1,7 +1,114 @@
+2007-10-05  Sergey Poznyakoff  <gray@gnu.org.ua>
+
+	* src/create.c (dump_regular_file): Fix file padding in case of
+	truncation to zero size.
+	* NEWS: Update
+
+2007-10-04  Sergey Poznyakoff  <gray@gnu.org.ua>
+
+	* tests/T-null.at: Use AT_DATA for sample output.
+
+2007-10-03  Sergey Poznyakoff  <gray@gnu.org.ua>
+
+	* src/incremen.c (try_purge_directory): Ensure that arguments to T
+	and R are safe.
+
+2007-09-29  Sergey Poznyakoff  <gray@gnu.org.ua>
+
+	* src/incremen.c (obstack_code_rename): Apply safer_name_suffix to
+	name arguments before storing them in T and R records. Reported by
+	Nicholas Cole.
+
+2007-09-27  Sergey Poznyakoff  <gray@gnu.org.ua>
+
+	* configure.ac: Raise version number to 1.18.90
+	* NEWS: Likewise
+
+	* doc/snapshot.texi: Document version 2.
+	* doc/dumpdir.texi: Update.
+
+	Implement --exclude-tag* and --exclude-cache* options for listed
+	incremental archives.
+	New option --exclude-vcs to exclude VCS-specific files and
+	directories. 
+	
+	* NEWS: Update
+	* doc/tar.texi: Document --exclude-vcs option
+	* src/common.h (exclusion_tag_warning, check_exclusion_tags): New
+	prototypes.
+	* src/create.c (exclusion_tag_warning, check_exclusion_tags):
+	Remove static qualifier.
+	(check_exclusion_tags): account for dirname without terminating
+	slash.
+	(dump_dir0): exclusion_tag_all is handled elsewhere.
+	* src/incremen.c (struct directory): New member tagfile
+	(make_directory): Initialize tagfile to NULL
+	(procdir): New argument: entry
+	Hanlde exclusion tags.
+	(makedumpdir): Take into account directory->tagfile.
+	(scan_directory): Hanlde exclusion tags.
+	* src/tar.c: New option --exclude-vcs
+	(exclude_vcs_files): New function
+	
+2007-09-14  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* AUTHORS: Remove unnecessary information.  Just list the
+	principal authors.
+	* THANKS: Remove info duplicated from AUTHORS.
+
+2007-08-25  Jim Meyering  <jim@meyering.net>
+
+	Don't include <getline.h>.  No longer needed.
+	* src/incremen.c: Don't include <getline.h>.  No longer needed.
+	* src/buffer.c: Likewise.
+	* src/system.c: Likewise.
+	* src/tar.c: Likewise.
+
+	Avoid shadowing and unused-variable warnings.
+	* src/create.c (check_exclusion_tags): Remove declaration of unused
+	local, "ret".
+	* src/compare.c (diff_dumpdir): Rename stat->stat_data to avoid
+	shadowing the syscall.
+	* src/buffer.c (do_checkpoint): Don't shadow the write syscall.
+	(try_new_volume): Avoid shadowing "access".
+	* src/tar.c (decode_options): Rename index->idx to avoid shadowing.
+	(find_argp_option): Rename option->o to avoid shadowing.
+	* src/incremen.c (scan_directory): Rename local, dir_name->dir,
+	to avoid shadowing the function.
+	(get_directory_contents): Likewise.
+	* src/system.c (global_pid): Rename from "pid", to avoid being
+	shadowed by locals.
+	* src/extract.c (apply_nonancestor_delayed_set_stat):
+	Rename st->sb to avoid shadowing another local.
+
+2007-08-24  Sergey Poznyakoff  <gray@gnu.org.ua>
+
+	* configure.ac, NEWS: Raise version number to 1.18.1
+
+	* src/buffer.c (check_compressed_archive): Detect files smaller
+	than 512 bytes.
+	* tests/shortfile.at: New test case for the above change.
+	* tests/testsuite.at, tests/Makefile.am: Add shortfile.at
+
+2007-08-19  Sergey Poznyakoff  <gray@gnu.org.ua>
+
+	* bootstrap: Gnulib initialization destroyed paxutils m4 files.
+	Initialize paxutils structure after that of gnulib.
+
+2007-08-12  Sergey Poznyakoff  <gray@gnu.org.ua>
+
+	* src/names.c (contains_dot_dot): Fix double-dot recognition in
+	case of duplicate /. Patch by Dmitry V. Levin.
+
+	* bootstrap (symlink_to_gnulib): Make sure the target directory
+	exists and create it if it does not.
+
+	* doc/tar.texi: Fix a typo.
+
 2007-06-28  Sergey Poznyakoff  <gray@gnu.org.ua>
 
 	* bootstrap: Update for the change of the TP URL
-	
+
 2007-06-27  Sergey Poznyakoff  <gray@gnu.org.ua>
 
         Relicense under GPLv3
@@ -23,7 +130,7 @@
 	* doc/Makefile.am (tar_TEXINFOS): Add tar-snapshot-edit.texi
 	* doc/tar-snapshot-edit.texi: New file
 	* doc/tar.texi (Fixing Snapshot Files): New appendix
-	
+
 	* scripts/tar-snapshot-edit: New file
 	* tests/extrac07.at: Add back write permissions on dir
 
@@ -43,21 +150,21 @@
 
 	* doc/tar.texi (Operation Summary): Restore alphabetical order of
 	the options.
-	
+
 2007-06-02  Sergey Poznyakoff  <gray@gnu.org.ua>
 
 	Fix bug, introduced on 2007-03-30.
-	
+
 	* src/common.h (xform_type): New data type
 	(transform_member_name): Last argument is of xform_type type
 	All callers updated
 
 	* src/extract.c: Update calls to transform_member_name
 	* src/list.c (decode_xform): Exempt symbolic links from component
-	stripping and name suffix normalization.  
+	stripping and name suffix normalization.
 
 	* tests/extrac07.at: Update
-		
+
 2007-05-30  Sergey Poznyakoff  <gray@gnu.org.ua>
 
 	* src/xheader.c (decx): Unknown pax keywords produce a warning,

NEWS

@@ -1,6 +1,44 @@
-GNU tar NEWS - User visible changes. 2007-06-29
+GNU tar NEWS - User visible changes. 2007-10-10
 Please send GNU tar bug reports to <bug-tar@gnu.org>
 
+
+version 1.19 - Sergey Poznyakoff, 2007-10-10
+
+* New option --exclude-vcs
+
+Excludes directories and files, created by several widely used version
+control systems, e.g. "CVS/", ".svn/", etc.
+
+* --exclude-tag and --exclude-cache options
+
+The following options now work with incremental archives as well:
+
+  --exclude-caches       
+  --exclude-caches-all   
+  --exclude-tag
+  --exclude-tag-all
+  --exclude-tag-under
+
+* Fix handling of renamed files in listed incremental archives.
+
+Previous versions always stored absolute file names in rename
+records, even if -P was not used. This is fixed: rename records
+contain file names processed in accordance with the command line
+settings.
+  
+* Fix --version output.
+
+* Recognition of broken archives.
+
+When supplied an archive smaller than 512 bytes in reading mode (-x,
+-t), the previous version of tar silently ignored it, exiting with
+code 0. It is fixed. Tar now issues the following diagnostic message:
+'This does not look like a tar archive', and exits with code 2.
+
+* Fix double-dot recognition in archive member names in case of duplicate '/.'.
+
+* Fix file padding in case of truncation of the input file to zero size.
+
 
 version 1.18 - Sergey Poznyakoff, 2007-06-29
 

THANKS

@@ -1,11 +1,6 @@
 GNU tar THANKS file
 
-Public domain tar was written by John Gilmore, with contributions
-from Henry Spencer, Fred Fish, Ian Darwin, Geoff Collyer, Stan Barber,
-Guy Harris, Dave Brower, Richard Todd, Michael Rendell, Stu Heiss and
-Rich $alz.  The FSF version, named GNU tar, was derived from PDTAR by
-Jay Fenlason and Joy Kendall, and was maintained in turn by François
-Pinard, Paul Eggert and Sergey Poznyakoff.
+Please see the AUTHORS file for the list of principal authors.
 
 Many people further contributed to GNU tar by reporting problems,
 suggesting various improvements or submitting actual code.  Here is a

bootstrap

@@ -339,28 +339,6 @@ copy_files() {
   done
 }
 
-copy_files ${PAXUTILS_SRCDIR}/m4 m4
-echo "$0: Creating m4/paxutils.m4"
-(echo "# This file is generated automatically. Please, do not edit."
- echo "#"
- echo "AC_DEFUN([${package}_PAXUTILS],["
- cat ${PAXUTILS_SRCDIR}/m4/DISTFILES | sed '/^#/d;s/\(.*\)\.m4/pu_\1/' | tr a-z A-Z
- echo "])") > ./m4/paxutils.m4
-ignorefile m4 paxutils.m4
-
-if [ -d rmt ]; then
-   :
-else
-   mkdir rmt
-fi
-
-for dir in doc rmt lib tests
-do
-	copy_files ${PAXUTILS_SRCDIR}/$dir $dir
-done
-
-copy_files ${PAXUTILS_SRCDIR}/paxlib lib pax
-
 # Get gnulib files.
 
 case ${GNULIB_SRCDIR--} in
@@ -372,6 +350,12 @@ esac
 gnulib_tool=$GNULIB_SRCDIR/gnulib-tool
 <$gnulib_tool || exit
 
+ensure_dir_exists()
+{
+  d=`dirname $dst`
+  test -d "$d" || mkdir -p -- "$d"
+}
+
 symlink_to_gnulib()
 {
   src=$GNULIB_SRCDIR/$1
@@ -388,6 +372,7 @@ symlink_to_gnulib()
       test -f "$dst" &&
       cmp -s "$src" "$dst" || {
 	echo "$0: cp -fp $src $dst" &&
+	ensure_dir_exists $dst &&
 	cp -fp "$src" "$dst"
       }
     else
@@ -410,6 +395,7 @@ symlink_to_gnulib()
 	esac
 
 	echo "$0: ln -fs $dot_dots$src $dst" &&
+	ensure_dir_exists $dst &&
 	ln -fs "$dot_dots$src" "$dst"
       }
     fi
@@ -592,6 +578,28 @@ slurp $bt2 $bt || exit
 
 rm -fr $bt $bt2 || exit
 
+# Import from paxutils
+copy_files ${PAXUTILS_SRCDIR}/m4 m4
+echo "$0: Creating m4/paxutils.m4"
+(echo "# This file is generated automatically. Please, do not edit."
+ echo "#"
+ echo "AC_DEFUN([${package}_PAXUTILS],["
+ cat ${PAXUTILS_SRCDIR}/m4/DISTFILES | sed '/^#/d;s/\(.*\)\.m4/pu_\1/' | tr a-z A-Z
+ echo "])") > ./m4/paxutils.m4
+ignorefile m4 paxutils.m4
+
+if [ -d rmt ]; then
+   :
+else
+   mkdir rmt
+fi
+
+for dir in doc rmt lib tests
+do
+	copy_files ${PAXUTILS_SRCDIR}/$dir $dir
+done
+
+copy_files ${PAXUTILS_SRCDIR}/paxlib lib pax
 
 # Reconfigure, getting other files.
 

configure.ac

@@ -18,7 +18,7 @@
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 # 02110-1301, USA.
 
-AC_INIT([GNU tar], [1.18], [bug-tar@gnu.org])
+AC_INIT([GNU tar], [1.19], [bug-tar@gnu.org])
 AC_CONFIG_SRCDIR([src/tar.c])
 AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_HEADERS([config.h:config.hin])

doc/dumpdir.texi

@@ -1,5 +1,5 @@
 @c This is part of the paxutils manual.
-@c Copyright (C) 2006 Free Software Foundation, Inc.
+@c Copyright (C) 2006, 2007 Free Software Foundation, Inc.
 @c Written by Sergey Poznyakoff
 @c This file is distributed under GFDL 1.1 or any later version
 @c published by the Free Software Foundation.
@@ -38,7 +38,7 @@ changed since the last backup.
 
 @item R
 This code requests renaming of the @var{filename} to the name
-specified with the following @samp{T} command.
+specified with the @samp{T} command, that immediately follows it.
 
 @item T
 Specify target file name for @samp{R} command (see below).
@@ -90,9 +90,9 @@ New incremental dump was made.
 @end enumerate
 
   This case cannot be handled by three successive renames, since
-renaming @file{a} to @file{b} will destroy existing directory.
-To handle such case a temporary directory is required. @GNUTAR{}
-will create the following dumpdir (newlines have been added for
+renaming @file{a} to @file{b} will destroy the existing directory.
+To correctly process it, @GNUTAR{} needs a temporary directory, so
+it creates the following dumpdir (newlines have been added for
 readability): 
 
 @smallexample

doc/snapshot.texi

@@ -1,5 +1,5 @@
 @c This is part of the paxutils manual.
-@c Copyright (C) 2005 Free Software Foundation, Inc.
+@c Copyright (C) 2005, 2007 Free Software Foundation, Inc.
 @c Written by Sergey Poznyakoff
 @c This file is distributed under GFDL 1.1 or any later version
 @c published by the Free Software Foundation.
@@ -9,27 +9,55 @@ incremental backups (@pxref{Incremental Dumps}).  It
 contains the status of the file system at the time of the dump and is
 used to determine which files were modified since the last backup.
 
-  @GNUTAR{} version @value{VERSION} supports two snapshot file
+  @GNUTAR{} version @value{VERSION} supports three snapshot file
 formats.  The first format, called @dfn{format 0}, is the one used by
 @GNUTAR{} versions up to 1.15.1. The second format, called @dfn{format
 1} is an extended version of this format, that contains more metadata
-and allows for further extensions.
+and allows for further extensions. It was used by version
+1.15.1. Starting from version 1.16 and up to @value{VERSION}, the
+@dfn{format 2} is used.
 
+  @GNUTAR{} is able to read all three formats, but will create
+snapshots only in format 2.
+
+  This appendix describes all three formats in detail.
+
+@enumerate 0
+@cindex format 0, snapshot file  
+@cindex snapshot file, format 0
+@item   
   @samp{Format 0} snapshot file begins with a line containing a
-decimal number that represents the UNIX timestamp of the beginning of
-the last archivation. This line is followed by directory metadata
-descriptions, one per line. Each description has the following format:
+decimal number that represents a @acronym{UNIX} timestamp of the
+beginning of the last archivation. This line is followed by directory
+metadata descriptions, one per line. Each description has the
+following format: 
 
 @smallexample
-[@var{nfs}]@var{dev} @var{inode} @var{name}
+@var{nfs}@var{dev} @var{inode} @var{name}
 @end smallexample
 
 @noindent
-where optional @var{nfs} is a single plus character (@samp{+}) if this
-directory is located on an NFS-mounted partition, @var{dev} and
-@var{inode} are the device and inode numbers of the directory, and
-@var{name} is the directory name.
+where:
 
+@table @var
+@item nfs
+A single plus character (@samp{+}), if this directory is located on
+an @acronym{NFS}-mounted partition, or a single space otherwise;
+
+@item dev
+Device number of the directory;
+
+@item inode
+I-node number of the directory;
+
+@item name
+Name of the directory. Any special characters (white-space,
+backslashes, etc.) are quoted.
+@end table
+
+@cindex format 1, snapshot file  
+@cindex snapshot file, format 1
+@item   
   @samp{Format 1} snapshot file begins with a line specifying the
 format of the file. This line has the following structure:
 
@@ -38,28 +66,75 @@ format of the file. This line has the following structure:
 @end smallexample
 
 @noindent
-where @var{tar-version} is the version of @GNUTAR{} implementation
-that created this snapshot, and @var{incr-format-version} is the
-version number of the snapshot format (in this case @samp{1}).
+where @var{tar-version} is the version number of @GNUTAR{}
+implementation that created this snapshot, and
+@var{incr-format-version} is the version number of the snapshot format
+(in this case @samp{1}). 
 
-  The following line contains two decimal numbers, representing the
+  Next line contains two decimal numbers, representing the
 time of the last backup. First number is the number of seconds, the
 second one is the number of nanoseconds, since the beginning of the
 epoch.
 
-  Following lines contain directory metadata, one line per
-directory. The line format is:
+  Lines that follow contain directory metadata, one line per
+directory. Each line is formatted as follows:
 
 @smallexample
 [@var{nfs}]@var{mtime-sec} @var{mtime-nsec} @var{dev} @var{inode} @var{name}
 @end smallexample
 
 @noindent
-where @var{mtime-sec} and @var{mtime-nsec} represent the last
+where @var{mtime-sec} and @var{mtime-nsec} represent last
 modification time of this directory with nanosecond precision;
 @var{nfs}, @var{dev}, @var{inode} and @var{name} have the same meaning
 as with @samp{format 0}.
 
+@cindex format 2, snapshot file  
+@cindex snapshot file, format 2
+@item
+@FIXME{}
+  A snapshot file begins with a format identifier, as described for
+version 1, e.g.:
+
+@smallexample
+GNU tar-@value{VERSION}-2
+@end smallexample
+
+  This line is followed by newline. Rest of file consists of
+records, separated by null (@acronym{ASCII} 0)
+characters. Thus, in contrast to the previous formats, format 2
+snapshot is a binary file.
+
+  First two records are decimal numbers, representing the
+time of the last backup.  First number is the number of seconds, the
+second one is the number of nanoseconds, since the beginning of the
+epoch.  These are followed by arbitrary number of directory records.
+  
+  Each @dfn{directory record} contains a set of metadata describing a
+particular directory.  Parts of a directory record are delimited with
+@acronym{ASCII} 0 characters.  The following table describes each
+part.  The @dfn{Number} type in this table stands for a decimal number
+in @acronym{ASCII} notation.
+
+@multitable @columnfractions 0.2 0.2 0.6
+@headitem Field @tab Type @tab Description
+@item nfs @tab Character @tab @samp{1} if the directory is located on
+an @acronym{NFS}-mounted partition, or @samp{0} otherwise;
+@item mtime-sec @tab Number @tab Modification time, seconds;
+@item mtime-nano @tab Number @tab Modification time, nanoseconds;
+@item dev-no @tab Number @tab Device number;
+@item i-no @tab Number @tab I-node number;
+@item name @tab String @tab Directory name; In contrast to the
+previous versions it is not quoted.
+@item contents @tab Dumpdir @tab Contents of the directory;
+@xref{Dumpdir}, for a description of its format.
+@item 
+@end multitable
+
+  Dumpdirs stored in snapshot files contain only records of types
+@samp{Y}, @samp{N} and @samp{D}.
+
+@end enumerate
 
 @c End of snapshot.texi
 

doc/tar.texi

@@ -2540,6 +2540,14 @@ named @var{file}, but dump the directory node itself.  @xref{exclude}.
 Exclude from dump any directory containing file named @var{file}.
 @xref{exclude}. 
 
+@opsummary{exclude-vcs}
+@item --exclude-vcs
+
+Exclude from dump directories and files, that are internal for some
+widely used version control systems.
+
+@xref{exclude}.
+
 @opsummary{file}
 @item --file=@var{archive}
 @itemx -f @var{archive}
@@ -6506,6 +6514,42 @@ called as @w{@samp{tar -c -X foo .}} and the file @file{foo} contains a
 single line @file{*.o}, no files whose names end in @file{.o} will be
 added to the archive.
 
+Notice, that lines from @var{file} are read verbatim. One of the
+frequent errors is leaving some extra whitespace after a file name,
+which is difficult to catch using text editors.
+
+However, empty lines are OK.
+
+@cindex version control system, excluding files
+@cindex VCS, excluding files
+@cindex SCCS, excluding files
+@cindex RCS, excluding files
+@cindex CVS, excluding files
+@cindex SVN, excluding files
+@cindex git, excluding files
+@table @option
+@opindex exclude-vcs
+@item --exclude-vcs
+Exclude files and directories used by some version control systems.
+@end table
+
+As of version @value{VERSION}, the following files are excluded:
+
+@itemize @bullet
+@item @file{CVS/}, and everything under it
+@item @file{RCS/}, and everything under it
+@item @file{SCCS/}, and everything under it
+@item @file{.git/}, and everything under it
+@item @file{.gitignore}
+@item @file{.cvsignore}
+@item @file{.svn/}, and everything under it
+@item @file{.arch-ids/}, and everything under it
+@item @file{@{arch@}/}, and everything under it
+@item @file{=RELEASE-ID}
+@item @file{=meta-update}
+@item @file{=update}
+@end itemize
+
 @findex exclude-caches
 When creating an archive, the @option{--exclude-caches} option family
 causes @command{tar} to exclude all directories that contain a @dfn{cache
@@ -6516,7 +6560,7 @@ Various applications write cache directory tags into directories they
 use to hold regenerable, non-precious data, so that such data can be
 more easily excluded from backups.
 
-There are three @samp{exclude-caches} option, providing a different
+There are three @samp{exclude-caches} options, each providing a different
 exclusion semantics:
 
 @table @option
@@ -10279,7 +10323,7 @@ echo $@{name:-$TAR_ARCHIVE@}-$TAR_VOLUME >&$TAR_FD
 @end group
 @end smallexample
 
-The same script cant be used while listing, comparing or extracting
+The same script can be used while listing, comparing or extracting
 from the created archive.  For example:
 
 @smallexample

src/buffer.c

@@ -26,7 +26,6 @@
 
 #include <closeout.h>
 #include <fnmatch.h>
-#include <getline.h>
 #include <human.h>
 #include <quotearg.h>
 
@@ -235,14 +234,16 @@ check_compressed_archive ()
 {
   struct zip_magic const *p;
   bool sfr;
-
+  bool short_file = false;
+  
   /* Prepare global data needed for find_next_block: */
   record_end = record_start; /* set up for 1st record = # 0 */
   sfr = read_full_records;
   read_full_records = true; /* Suppress fatal error on reading a partial
 			       record */
-  find_next_block ();
-
+  if (find_next_block () == 0)
+    short_file = true;
+  
   /* Restore global values */
   read_full_records = sfr;
 
@@ -254,6 +255,9 @@ check_compressed_archive ()
     if (memcmp (record_start->buffer, p->magic, p->length) == 0)
       return p->type;
 
+  if (short_file)
+    ERROR ((0, 0, _("This does not look like a tar archive")));
+
   return ct_none;
 }
 
@@ -586,7 +590,7 @@ _open_archive (enum access_mode wanted_access)
 }
 
 static void
-do_checkpoint (bool write)
+do_checkpoint (bool do_write)
 {
   if (checkpoint_option && !(++checkpoint % checkpoint_option))
     {
@@ -598,7 +602,7 @@ do_checkpoint (bool write)
 	  break;
 
 	case checkpoint_text:
-	  if (write)
+	  if (do_write)
 	    /* TRANSLATORS: This is a ``checkpoint of write operation'',
 	     *not* ``Writing a checkpoint''.
 	     E.g. in Spanish ``Punto de comprobaci@'on de escritura'',
@@ -1132,22 +1136,22 @@ try_new_volume ()
 {
   size_t status;
   union block *header;
-  int access;
+  enum access_mode acc;
   
   switch (subcommand_option)
     {
     case APPEND_SUBCOMMAND:
     case CAT_SUBCOMMAND:
     case UPDATE_SUBCOMMAND:
-      access = ACCESS_UPDATE;
+      acc = ACCESS_UPDATE;
       break;
 
     default:
-      access = ACCESS_READ;
+      acc = ACCESS_READ;
       break;
     }
 
-  if (!new_volume (access))
+  if (!new_volume (acc))
     return true;
   
   while ((status = rmtread (archive, record_start->buffer, record_size))

src/common.h

@@ -445,7 +445,11 @@ union block * write_extended (bool global, struct tar_stat_info *st,
 union block *start_private_header (const char *name, size_t size);
 void write_eot (void);
 void check_links (void);
-
+void exclusion_tag_warning (const char *dirname, const char *tagname,
+			    const char *message);
+enum exclusion_tag_type check_exclusion_tags (char *dirname,
+					      const char **tag_file_name);
+     
 #define GID_TO_CHARS(val, where) gid_to_chars (val, where, sizeof (where))
 #define MAJOR_TO_CHARS(val, where) major_to_chars (val, where, sizeof (where))
 #define MINOR_TO_CHARS(val, where) minor_to_chars (val, where, sizeof (where))

src/compare.c

@@ -368,9 +368,9 @@ diff_dumpdir (void)
 {
   char *dumpdir_buffer;
   dev_t dev = 0;
-  struct stat stat;
+  struct stat stat_data;
 
-  if (deref_stat (true, current_stat_info.file_name, &stat))
+  if (deref_stat (true, current_stat_info.file_name, &stat_data))
     {
       if (errno == ENOENT)
 	stat_warn (current_stat_info.file_name);
@@ -378,7 +378,7 @@ diff_dumpdir (void)
 	stat_error (current_stat_info.file_name);
     }
   else
-    dev = stat.st_dev;
+    dev = stat_data.st_dev;
 
   dumpdir_buffer = get_directory_contents (current_stat_info.file_name, dev);
 

src/create.c

@@ -58,7 +58,7 @@ add_exclusion_tag (const char *name, enum exclusion_tag_type type,
   exclusion_tags = tag;
 }
 
-static void
+void
 exclusion_tag_warning (const char *dirname, const char *tagname,
 		       const char *message)
 {
@@ -70,19 +70,19 @@ exclusion_tag_warning (const char *dirname, const char *tagname,
 	   message));
 }
 
-static enum exclusion_tag_type 
+enum exclusion_tag_type 
 check_exclusion_tags (char *dirname, const char **tag_file_name)
 {
   static char *tagname;
   static size_t tagsize;
   struct exclusion_tag *tag;
   size_t dlen = strlen (dirname);
+  int addslash = dirname[dlen-1] != '/';
   char *nptr = NULL;
-  char *ret = NULL;
   
   for (tag = exclusion_tags; tag; tag = tag->next)
     {
-      size_t size = dlen + tag->length + 1;
+      size_t size = dlen + addslash + tag->length + 1;
       if (size > tagsize)
 	{
 	  tagsize = size;
@@ -93,6 +93,8 @@ check_exclusion_tags (char *dirname, const char **tag_file_name)
 	{
 	  strcpy (tagname, dirname);
 	  nptr = tagname + dlen;
+	  if (addslash)
+	    *nptr++ = '/';
 	}
       strcpy (nptr, tag->name);
       if (access (tagname, F_OK) == 0
@@ -1064,8 +1066,7 @@ dump_regular_file (int fd, struct tar_stat_info *st)
 	  return dump_status_short;
 	}
       size_left -= count;
-      if (count)
-	set_next_block_after (blk + (bufsize - 1) / BLOCKSIZE);
+      set_next_block_after (blk + (bufsize - 1) / BLOCKSIZE);
 
       if (count != bufsize)
 	{
@@ -1079,7 +1080,7 @@ dump_regular_file (int fd, struct tar_stat_info *st)
 		 STRINGIFY_BIGINT (size_left, buf)));
 	  if (! ignore_failed_read_option) 
 	    exit_status = TAREXIT_DIFFERS;
-	  pad_archive (size_left - (bufsize-count));
+	  pad_archive (size_left - (bufsize - count));
 	  return dump_status_short;
 	}
     }
@@ -1183,8 +1184,11 @@ dump_dir0 (char *directory,
       
       switch (check_exclusion_tags (st->orig_file_name, &tag_file_name))
 	{
-	case exclusion_tag_none:
 	case exclusion_tag_all:
+	  /* Handled in dump_file0 */
+	  break;
+	  
+	case exclusion_tag_none:
 	  {
 	    char const *entry;
 	    size_t entry_len;

src/extract.c

@@ -1,7 +1,7 @@
 /* Extract files from a tar archive.
 
    Copyright (C) 1988, 1992, 1993, 1994, 1996, 1997, 1998, 1999, 2000,
-   2001, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+   2001, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
 
    Written by John Gilmore, on 1985-11-19.
 
@@ -593,13 +593,13 @@ apply_nonancestor_delayed_set_stat (char const *file_name, bool after_links)
 
       if (! skip_this_one)
 	{
-	  struct tar_stat_info st;
-	  st.stat.st_mode = data->mode;
-	  st.stat.st_uid = data->uid;
-	  st.stat.st_gid = data->gid;
-	  st.atime = data->atime;
-	  st.mtime = data->mtime;
-	  set_stat (data->file_name, &st, cur_info,
+	  struct tar_stat_info sb;
+	  sb.stat.st_mode = data->mode;
+	  sb.stat.st_uid = data->uid;
+	  sb.stat.st_gid = data->gid;
+	  sb.atime = data->atime;
+	  sb.mtime = data->mtime;
+	  set_stat (data->file_name, &sb, cur_info,
 		    data->invert_permissions, data->permstatus, DIRTYPE);
 	}
 

src/incremen.c

@@ -18,7 +18,6 @@
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
 #include <system.h>
-#include <getline.h>
 #include <hash.h>
 #include <quotearg.h>
 #include "common.h"
@@ -63,6 +62,8 @@ struct directory
     unsigned flags;             /* See DIRF_ macros above */
     struct directory *orig;     /* If the directory was renamed, points to
 				   the original directory structure */
+    const char *tagfile;        /* Tag file, if the directory falls under
+				   exclusion_tag_under */
     char name[1];		/* file name of directory */
   };
 
@@ -125,6 +126,7 @@ make_directory (const char *name)
   strcpy (directory->name, name);
   if (ISSLASH (directory->name[namelen-1]))
     directory->name[namelen-1] = 0;
+  directory->tagfile = NULL;
   return directory;
 }
 
@@ -230,7 +232,8 @@ static struct directory *
 procdir (char *name_buffer, struct stat *stat_data,
 	 dev_t device,
 	 enum children children,
-	 bool verbose)
+	 bool verbose,
+	 char *entry)
 {
   struct directory *directory;
   bool nfs = NFS_FILE_STAT (*stat_data);
@@ -331,6 +334,40 @@ procdir (char *name_buffer, struct stat *stat_data,
 
   DIR_SET_FLAG (directory, DIRF_INIT);
 
+  {
+    const char *tag_file_name;
+    size_t len;
+    
+    switch (check_exclusion_tags (name_buffer, &tag_file_name))
+      {
+      case exclusion_tag_all:
+	/* This warning can be duplicated by code in dump_file0, but only
+	   in case when the topmost directory being archived contains
+	   an exclusion tag. */
+	exclusion_tag_warning (name_buffer, tag_file_name,
+			       _("directory not dumped"));
+	if (entry)
+	  *entry = 'N';
+	directory->children = NO_CHILDREN;
+	break;
+
+      case exclusion_tag_contents:
+	exclusion_tag_warning (name_buffer, tag_file_name,
+			       _("contents not dumped"));
+	directory->children = NO_CHILDREN;
+	break;
+	
+      case exclusion_tag_under:
+	exclusion_tag_warning (name_buffer, tag_file_name,
+			       _("contents not dumped"));
+	directory->tagfile = tag_file_name;
+	break;
+	
+      case exclusion_tag_none:
+	break;
+      }
+  }
+
   return directory;
 }
 
@@ -437,9 +474,17 @@ makedumpdir (struct directory *directory, const char *dir)
       const char *loc = dumpdir_locate (dump, array[i]);
       if (loc)
 	{
-	  *new_dump_ptr++ = ' ';
+	  if (directory->tagfile)
+	    *new_dump_ptr = strcmp (directory->tagfile, array[i]) == 0 ?
+		               ' ' : 'I';
+	  else
+	    *new_dump_ptr = ' ';
+	  new_dump_ptr++;
 	  dump = loc + strlen (loc) + 1;
 	}
+      else if (directory->tagfile)
+	*new_dump_ptr++ = strcmp (directory->tagfile, array[i]) == 0 ?
+		               ' ' : 'I';
       else
 	*new_dump_ptr++ = 'Y'; /* New entry */
 
@@ -455,22 +500,22 @@ makedumpdir (struct directory *directory, const char *dir)
 
 /* Recursively scan the given directory. */
 static char *
-scan_directory (char *dir_name, dev_t device)
+scan_directory (char *dir, dev_t device)
 {
-  char *dirp = savedir (dir_name);	/* for scanning directory */
+  char *dirp = savedir (dir);	/* for scanning directory */
   char *name_buffer;		/* directory, `/', and directory member */
   size_t name_buffer_size;	/* allocated size of name_buffer, minus 2 */
   size_t name_length;		/* used length in name_buffer */
   struct stat stat_data;
   struct directory *directory;
-
+  
   if (! dirp)
-    savedir_error (dir_name);
+    savedir_error (dir);
 
-  name_buffer_size = strlen (dir_name) + NAME_FIELD_SIZE;
+  name_buffer_size = strlen (dir) + NAME_FIELD_SIZE;
   name_buffer = xmalloc (name_buffer_size + 2);
-  strcpy (name_buffer, dir_name);
-  if (! ISSLASH (dir_name[strlen (dir_name) - 1]))
+  strcpy (name_buffer, dir);
+  if (! ISSLASH (dir[strlen (dir) - 1]))
     strcat (name_buffer, "/");
   name_length = strlen (name_buffer);
 
@@ -485,8 +530,9 @@ scan_directory (char *dir_name, dev_t device)
       return NULL;
     }
 
-  directory = procdir (name_buffer, &stat_data, device, NO_CHILDREN, false);
-
+  directory = procdir (name_buffer, &stat_data, device, NO_CHILDREN, false,
+		       NULL);
+  
   if (dirp && directory->children != NO_CHILDREN)
     {
       char  *entry;	/* directory entry being scanned */
@@ -507,7 +553,9 @@ scan_directory (char *dir_name, dev_t device)
 	    }
 	  strcpy (name_buffer + name_length, entry + 1);
 
-	  if (excluded_name (name_buffer))
+	  if (*entry == 'I') /* Ignored entry */
+	    *entry = 'N';
+	  else if (excluded_name (name_buffer))
 	    *entry = 'N';
 	  else
 	    {
@@ -520,10 +568,10 @@ scan_directory (char *dir_name, dev_t device)
 
 	      if (S_ISDIR (stat_data.st_mode))
 		{
+		  *entry = 'D';
 		  procdir (name_buffer, &stat_data, device,
 			   directory->children,
-			   verbose_option);
-		  *entry = 'D';
+			   verbose_option, entry);
 		}
 
 	      else if (one_file_system_option && device != stat_data.st_dev)
@@ -552,19 +600,26 @@ scan_directory (char *dir_name, dev_t device)
 }
 
 char *
-get_directory_contents (char *dir_name, dev_t device)
+get_directory_contents (char *dir, dev_t device)
 {
-  return scan_directory (dir_name, device);
+  return scan_directory (dir, device);
 }
 
 
 static void
 obstack_code_rename (struct obstack *stk, char *from, char *to)
 {
+  char *s;
+
+  s = from[0] == 0 ? from :
+                     safer_name_suffix (from, false, absolute_names_option);
   obstack_1grow (stk, 'R');
-  obstack_grow (stk, from, strlen (from) + 1);
+  obstack_grow (stk, s, strlen (s) + 1);
+
+  s = to[0] == 0 ? to:
+                   safer_name_suffix (to, false, absolute_names_option);
   obstack_1grow (stk, 'T');
-  obstack_grow (stk, to, strlen (to) + 1);
+  obstack_grow (stk, s, strlen (s) + 1);
 }
 
 static bool
@@ -1355,6 +1410,19 @@ try_purge_directory (char const *directory_name)
 	  arc += strlen (arc) + 1;
 	  dst = arc + 1;
 
+	  /* Ensure that neither source nor destination are absolute file
+	     names (unless permitted by -P option), and that they do not
+	     contain dubious parts (e.g. ../).
+
+	     This is an extra safety precaution. Besides, it might be
+	     necessary to extract from archives created with tar versions
+	     prior to 1.19. */
+	  
+	  if (*src)
+	    src = safer_name_suffix (src, false, absolute_names_option);
+	  if (*dst)
+	    dst = safer_name_suffix (dst, false, absolute_names_option);
+	  
 	  if (*src == 0)
 	    src = temp_stub;
 	  else if (*dst == 0)

src/names.c

@@ -1012,11 +1012,10 @@ contains_dot_dot (char const *name)
       if (p[0] == '.' && p[1] == '.' && (ISSLASH (p[2]) || !p[2]))
 	return 1;
 
-      do
+      while (! ISSLASH (*p))
 	{
 	  if (! *p++)
 	    return 0;
 	}
-      while (! ISSLASH (*p));
     }
 }

src/system.c

@@ -17,7 +17,6 @@
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
 #include <system.h>
-#include <getline.h>
 #include <setenv.h>
 
 #include "common.h"
@@ -697,7 +696,7 @@ stat_to_env (char *name, char type, struct tar_stat_info *st)
     }
 }
 
-static pid_t pid;
+static pid_t global_pid;
 static RETSIGTYPE (*pipe_handler) (int sig);
 
 int
@@ -708,9 +707,9 @@ sys_exec_command (char *file_name, int typechar, struct tar_stat_info *st)
 
   xpipe (p);
   pipe_handler = signal (SIGPIPE, SIG_IGN);
-  pid = xfork ();
+  global_pid = xfork ();
 
-  if (pid != 0)
+  if (global_pid != 0)
     {
       xclose (p[PREAD]);
       return p[PWRITE];
@@ -737,14 +736,14 @@ sys_wait_command (void)
 {
   int status;
 
-  if (pid < 0)
+  if (global_pid < 0)
     return;
 
   signal (SIGPIPE, pipe_handler);
-  while (waitpid (pid, &status, 0) == -1)
+  while (waitpid (global_pid, &status, 0) == -1)
     if (errno != EINTR)
       {
-        pid = -1;
+        global_pid = -1;
         waitpid_error (to_command_option);
         return;
       }
@@ -753,18 +752,18 @@ sys_wait_command (void)
     {
       if (!ignore_command_error_option && WEXITSTATUS (status))
 	ERROR ((0, 0, _("%lu: Child returned status %d"),
-		(unsigned long) pid, WEXITSTATUS (status)));
+		(unsigned long) global_pid, WEXITSTATUS (status)));
     }
   else if (WIFSIGNALED (status))
     {
       WARN ((0, 0, _("%lu: Child terminated on signal %d"),
-	     (unsigned long) pid, WTERMSIG (status)));
+	     (unsigned long) global_pid, WTERMSIG (status)));
     }
   else
     ERROR ((0, 0, _("%lu: Child terminated on unknown reason"),
-	    (unsigned long) pid));
+	    (unsigned long) global_pid));
 
-  pid = -1;
+  global_pid = -1;
 }
 
 int

src/tar.c

@@ -22,7 +22,6 @@
 #include <system.h>
 
 #include <fnmatch.h>
-#include <getline.h>
 #include <argp.h>
 #include <argp-namefrob.h>
 #include <argp-fmtstream.h>
@@ -260,6 +259,7 @@ enum
   EXCLUDE_TAG_OPTION,
   EXCLUDE_TAG_UNDER_OPTION,
   EXCLUDE_TAG_ALL_OPTION,
+  EXCLUDE_VCS_OPTION,
   FORCE_LOCAL_OPTION,
   GROUP_OPTION,
   HANG_OPTION,
@@ -622,6 +622,8 @@ static struct argp_option options[] = {
    N_("exclude everything under directories containing FILE"), GRID+1 },
   {"exclude-tag-all", EXCLUDE_TAG_ALL_OPTION, N_("FILE"), 0,
    N_("exclude directories containing FILE"), GRID+1 },
+  {"exclude-vcs", EXCLUDE_VCS_OPTION, NULL, 0,
+   N_("exclude version control system directories"), GRID+1 },
   {"no-recursion", NO_RECURSION_OPTION, 0, 0,
    N_("avoid descending automatically in directories"), GRID+1 },
   {"one-file-system", ONE_FILE_SYSTEM_OPTION, 0, 0,
@@ -785,6 +787,7 @@ struct tar_args        /* Variables used during option parsing */
   bool input_files;                /* True if some input files where given */
 };
 
+
 #define MAKE_EXCL_OPTIONS(args) \
  ((((args)->wildcards != disable_wildcards) ? EXCLUDE_WILDCARDS : 0) \
   | (args)->matching_flags \
@@ -796,6 +799,37 @@ struct tar_args        /* Variables used during option parsing */
   | (args)->matching_flags \
   | recursion_option)
 
+void
+exclude_vcs_files ()
+{
+  int i;
+  static char *vcs_file[] = {
+    /* CVS: */
+    "CVS",
+    ".cvsignore",
+    /* RCS: */
+    "RCS",
+    /* SCCS: */
+    "SCCS",
+    /* SVN: */
+    ".svn",
+    /* git: */
+    ".git",
+    ".gitignore",
+    /* Arch: */
+    ".arch-ids",
+    "{arch}",
+    "=RELEASE-ID",
+    "=meta-update",
+    "=update",
+    NULL
+  };
+
+  for (i = 0; vcs_file[i]; i++)
+    add_exclude (excluded, vcs_file[i], 0);
+}
+
+
 #ifdef REMOTE_SHELL
 # define DECL_SHOW_DEFAULT_SETTINGS(stream, printer)                      \
 {                                                                         \
@@ -1548,6 +1582,10 @@ parse_opt (int key, char *arg, struct argp_state *state)
       add_exclusion_tag (arg, exclusion_tag_all, NULL);
       break;
 
+    case EXCLUDE_VCS_OPTION:
+      exclude_vcs_files ();
+      break;
+      
     case FORCE_LOCAL_OPTION:
       force_local_option = true;
       break;
@@ -1934,23 +1972,23 @@ usage (int status)
 /* Parse the options for tar.  */
 
 static struct argp_option *
-find_argp_option (struct argp_option *options, int letter)
+find_argp_option (struct argp_option *o, int letter)
 {
   for (;
-       !(options->name == NULL
-	 && options->key == 0
-	 && options->arg == 0
-	 && options->flags == 0
-	 && options->doc == NULL); options++)
-    if (options->key == letter)
-      return options;
+       !(o->name == NULL
+	 && o->key == 0
+	 && o->arg == 0
+	 && o->flags == 0
+	 && o->doc == NULL); o++)
+    if (o->key == letter)
+      return o;
   return NULL;
 }
 
 static void
 decode_options (int argc, char **argv)
 {
-  int index;
+  int idx;
   struct tar_args args;
 
   /* Set some default option values.  */
@@ -2041,7 +2079,7 @@ decode_options (int argc, char **argv)
   prepend_default_options (getenv ("TAR_OPTIONS"), &argc, &argv);
 
   if (argp_parse (&argp, argc, argv, ARGP_IN_ORDER|ARGP_NO_HELP,
-		  &index, &args))
+		  &idx, &args))
     exit (TAREXIT_FAILURE);
 
 
@@ -2069,9 +2107,9 @@ decode_options (int argc, char **argv)
     }
 
   /* Handle operands after any "--" argument.  */
-  for (; index < argc; index++)
+  for (; idx < argc; idx++)
     {
-      name_add_name (argv[index], MAKE_INCL_OPTIONS (&args));
+      name_add_name (argv[idx], MAKE_INCL_OPTIONS (&args));
       args.input_files = true;
     }
 

tests/Makefile.am

@@ -99,6 +99,7 @@ TESTSUITE_AT = \
  rename03.at\
  same-order01.at\
  same-order02.at\
+ shortfile.at\
  shortrec.at\
  sparse01.at\
  sparse02.at\

tests/T-null.at

@@ -19,7 +19,11 @@
 # 02110-1301, USA.
 
 AT_SETUP([files-from: 0-separated file without -0])
-AT_KEYWORDS([files-from null])
+AT_KEYWORDS([files-from null T-null])
+
+AT_DATA([expout],[jeden\ndwa
+trzy
+])
 
 AT_TAR_CHECK([
 AT_SORT_PREREQ
@@ -37,9 +41,7 @@ genfile -f trzy
 tar cfTv archive file-list | sort
 ],
 [0],
-[jeden\ndwa
-trzy
-],
+[expout],
 [tar: file-list: file name read contains nul character
 ],[],[],[ustar]) # Testing one format is enough
 

tests/shortfile.at

@@ -0,0 +1,41 @@
+# Process this file with autom4te to create testsuite. -*- Autotest -*-
+
+# Test suite for GNU tar.
+# Copyright (C) 2007 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+# Tar 1.18 in reading mode silently ignored any invalid files smaller than 512
+# Reported by: Ian <isoboroff@gmail.com> on Thu, 23 Aug 2007 15:15:51 -0400
+# References: <ebd55800708231215l5f8f52c0i9018fdb60bb202b@mail.gmail.com>
+#             http://lists.gnu.org/archive/html/bug-tar/2007-08/msg00038.html
+
+AT_SETUP([short input files])
+AT_KEYWORDS([shortfile])
+
+AT_TAR_CHECK([
+genfile --length 511 --file foo || exit 5
+tar tf foo
+],
+[2],
+[],
+[tar: This does not look like a tar archive
+tar: Error exit delayed from previous errors
+],
+[],[],[gnu])
+
+AT_CLEANUP
+

tests/star/README

@@ -2,9 +2,12 @@ This directory contains scripts for testing GNU tar using
 star "test archives". The archives themselves can be obtained
 from http://download.berlios.de/pub/star/testscripts.
 
-The tests are ignored unless environment variable STAR_TESTSCRIPTS
-is set and points to the directory where the test archives reside.
-Sample usage:
+These tests are disabled by default. There are two ways to run
+them.  The simplest is by `make check-full' command.  It requires wget
+and GNU md5sum to be installed. If you don't have these utilities,
+download the test archives manually and set the environment variable
+STAR_TESTSCRIPTS to point to the directory where they reside, for
+example:
 
 	make STAR_TESTSCRIPTS=testdir check
 or	

tests/testsuite.at

@@ -179,6 +179,7 @@ m4_include([volume.at])
 m4_include([volsize.at])
 
 m4_include([comprec.at])
+m4_include([shortfile.at])
 
 m4_include([truncate.at])
 m4_include([grow.at])