Commit Graph

43 Commits

Author SHA1 Message Date
Tim Kientzle
3b7dbff339 Merge a bunch of refactoring from Joerg Sonnenberger to
isolate common code used by tar and cpio (and useful to other
libarchive clients).  The functions here are prefixed with
"lafe" (libarchive front-end) to indicate their use.
2010-02-07 02:00:26 +00:00
Tim Kientzle
12d4db7c3f Refactor the siginfo/sigusr1 handling. The read/write reporting
is sufficiently different that it was simpler to just put separate
reporting functions into read.c and write.c rather than try to have
a single all-purpose reporting function.
Switch to a custom function for converting int64_t to a string; in
the portable version, this saves a lot of configuration headaches
trying to decipher the platform printf().
2010-02-06 20:27:36 +00:00
Tim Kientzle
ae41a0ad92 Diff reduction compared to portable bsdtar 2.8: Move the
program name into a global, which eliminates an extra
argument from a lot of places.
2010-02-06 19:44:37 +00:00
Tim Kientzle
5191e7b552 Merge remaining changes from libarchive.googlecode.com:
* Add xz and lzma compression options
 * Rename --format-options to simply --options
 * Add --same-owner for GNU tar compat
 * Add -lmd and -lcrypto to fix link
 * Documentation
2009-04-17 03:45:15 +00:00
Tim Kientzle
abe5b073f4 Merge r492 from libarchive.googlecode.com: First cut at exposing the
new options mechanism to userland.  Documentation pending...
2009-03-08 06:19:28 +00:00
Tim Kientzle
3ae673ed49 Merge r283,r423 from libarchive.googlecode.com: Use libarchive's new
archive_read_disk API to pull metadata off of disk.  This
removes a lot of platform-specific knowledge of things like
ACLs, file flags, and extended attributes from bsdtar.
2009-03-08 05:22:50 +00:00
Tim Kientzle
d47cf339f4 Only use GCC-specific __dead2 marker when building with GCC. 2008-12-06 07:37:14 +00:00
Tim Kientzle
85ae3122e9 New command-line parser for bsdtar.
This replaces the getopt()/getopt_long() wrapper, the old-style
argument rewriter and the associated configuration glue with a more
straightforward custom command parser.  In particular, this ensures
that bsdtar will have consistent option parsing on every platform,
regardless of whether the platform supports getopt_long().

MFC after:	30 days
2008-11-08 04:43:24 +00:00
Colin Percival
f9bcf9cabf Mark functions as __dead2 in order to help the LLVM static checker
understand which code paths aren't possible.

This commit eliminates 117 false positive bug reports of the form
"allocate memory; error out if pointer is NULL; use pointer".
2008-08-04 01:25:48 +00:00
Colin Percival
d47b2ddb21 Use malloc in write_archive to allocate a 64kB buffer for holding file data
instead of using 64kB of stack space in copy_file_data and write_file_data.
2008-07-05 08:03:08 +00:00
Tim Kientzle
eb36031906 MFp4: bsdtar 2.5.4b
In addition to a number of bug fixes and minor changes:
 * --numeric-owner (ignore user/group names on create and extract)
 * -S (sparsify files on extraction)
 * -s (regex filename substitutions)
 * Use new libarchive 'linkify' to get correct hardlink handling for
   both old and new cpio formats
 * Rework 'copy' test to be insensitive to readdir() filename ordering

Most of the credit for this work goes to Joerg Sonnenberger, who
has been duplicating features from NetBSD's 'pax' program.
2008-05-26 17:10:10 +00:00
Colin Percival
990662f170 Improve portability via s/struct siginfo/struct siginfo_data/. This was
running into a namespace collision on an avian operating system.
2008-05-22 21:08:36 +00:00
Colin Percival
06a047f0f1 Add SIGINFO (and for portability to SIGINFO-lacking systems, SIGUSR1)
handling to bsdtar.  When writing archives (including copying via the
@archive directive) a line is output to stderr indicating what is being
done (adding or copying), the path, and how far through the file we are;
extracting currently does not report progress within each file, but
this is likely to happen eventually.

Discussed with:	kientzle
Obtained from:	tarsnap
2008-05-18 06:24:47 +00:00
Tim Kientzle
e1dedd79ed --chroot implementation thanks to Joerg Sonnenberger. 2008-03-15 03:06:46 +00:00
Tim Kientzle
fd3fd2a992 Use archive_entry_strmode() instead of a local bsdtar_strmode().
(This does a couple of things that the standard library's strmode()
doesn't; it proved useful in bsdcpio as well, so I pushed it down
into libarchive.)
2008-01-02 00:21:27 +00:00
Tim Kientzle
a38d1d4c8b bsdtar 2.2.3:
* Implement --use-compress-program using new libarchive feature.
  * Minor portability improvement by adjusting casts used to
    print out uids, gids, and device numbers.

Thanks to: Joerg Sonnenberger for the --use-compress-program implementation.
MFC after: 15 days
2007-05-29 05:39:10 +00:00
Tim Kientzle
45d4d7ac8c bsdtar 2.0.23:
* New test scripts exercise some basic functionality
   * Most header inclusions are now protected (portability)
   * read.c now relies on security checks in libarchive instead
     of trying to do its own (optimization)
   * -p now enabled by default for root, add --no-same-permissions
     to disable it
   * Comments, minor style fixes.
2007-03-11 10:36:42 +00:00
Tim Kientzle
dbd5adf0d9 Correct the copyright messages: Make this a standard vanilla
2-clause BSD license, update the year to 2007.
2007-01-09 08:12:17 +00:00
Colin Percival
fe7f4a3aad Correct the names of some options.
MFC after:	3 days
2006-12-23 07:01:59 +00:00
Tim Kientzle
6b422e20c1 Extended attribute support on write for Linux; FreeBSD hooks are
forthcoming.  This commit also has a number of style(9) fixes and
minor corrections so the code works better with the build system being
used for non-FreeBSD builds.

Many thanks to: Jaakko Heinonen, who proposed a mechanism for extended
attribute support and implemented both the machine-independent portion
and the Linux-specific portion.
2006-03-21 17:03:51 +00:00
Tim Kientzle
e90e8e4b97 Support path-rewriting options (including --strip-components) for both
extraction and creation.  While I'm here, fix a bug reported by Garrett
Wollman: when stripping the leading '/' from the path "/", don't produce
an entry with an empty name; produce "." instead.
2005-04-17 17:20:54 +00:00
Tim Kientzle
d14c1502f0 Add --newer-ctime, --newer-mtime, --newer-ctime-than, and --newer-mtime-than
switches to support selecting files by time of modification.

Special thanks to: Steven M. Bellovin, Rich $alz, and Jim Berets,
	authors of the public-domain getdate.y date-parsing code.
2005-03-13 18:36:24 +00:00
Tim Kientzle
62a2ad1b03 Add --strip-components option, per bin/77666.
Thanks to: Sangwoo Shim
2005-03-13 04:12:30 +00:00
Tim Kientzle
991f1d87bb Move the smart chdir logic into a couple of utility functions in util.c.
Then use them to provide consistent -C support throughout the program.
Thanks to: Christoph Mallon
2004-08-08 05:50:10 +00:00
Tim Kientzle
dd1a40a3c0 It shouldn't be an error to specify the same mode twice: allow -cc but not -ct.
Thanks to: Christoph Mallon (whose proposed patch was actually
   simpler than what I ended up with)
2004-08-08 05:10:10 +00:00
Tim Kientzle
8095e9d82b Add --totals option. Unlike gtar, this reports the bytes actually
written to the archive, not the ones written to the compressor.
For uncompressed archives, these numbers are the same, of course.
2004-08-07 19:25:34 +00:00
Tim Kientzle
62010d3541 A bunch of stuff from Christoph Mellon:
* Whitespace fixes
  * Check some malloc calls
  * Simplify long_help formatting
  * Spell "LINUX" -> "linux"
  * A few other miscellaneous style improvements
2004-07-24 22:13:44 +00:00
Tim Kientzle
5ebbe2f056 Remove unused user_uname variable.
Add range-checking to argument of -b.

Thanks to: Tim J Robbins
2004-07-17 18:21:00 +00:00
Tim Kientzle
b3ea6ecd42 Validate -o usage. Strictly speaking, -o only makes sense with -x,
of course, but I make an effort to accomodate GNU tar scripts that
use -o with -c (with a meaning that totally contradicts SUSv2) by
only issuing a benign warning message in that case.
2004-07-17 04:17:50 +00:00
Tim Kientzle
b9916968df Make the day/month ordering dependent on the current locale by
testing the locale at program startup and setting a flag, then
using that flag to determine appropriate strftime() arguments.
2004-07-15 03:14:46 +00:00
Tim Kientzle
d3d1a208cb Augment the -T handling:
* Add --null option (sort #defines here)
 * Add process_lines function to util.c that reads newline-terminated
   or null-terminated lines (with self-sizing buffers, etc) and iteratively
   invokes a provided function.  Use this to dramatically simplify:
   -T handling for -c, --exclude-from-file, and --include-from-file.
 * Add -T handling to -x (via include_from_file)

Hopefully, this will fix the openoffice port and a couple of
others that rely on -T and --null.
2004-06-27 06:29:03 +00:00
Tim Kientzle
b7ec47bb9f Add gtar-compatible -X/--exclude-from 2004-06-15 05:55:41 +00:00
Tim Kientzle
e1f5ccf6fb If -b is specified, then force full padding for the last block. 2004-06-07 03:19:57 +00:00
Tim Kientzle
8df3c224c0 Provide framework for exiting with non-zero value on non-critical errors. 2004-05-27 04:30:59 +00:00
Tim Kientzle
088bdb251d Propagate struct bsdtar down into a lot more places.
Move global progname variable into struct bsdtar.
2004-05-17 05:44:53 +00:00
Tim Kientzle
7283cd6959 Refactor name caching to use a common piece of code for uname_cache and
gname_cache.  Cache negative lookups to dramatically improve performance
building archives containing nonexistent uid/gid.
2004-05-17 05:02:39 +00:00
Tim Kientzle
4a07f42b98 Make symlink protection a bit more useful:
* Remove terminal symlinks so they can be replaced.
  * If -U, remove intermediate symlinks as well
  * Otherwise, refuse the extraction
2004-05-17 03:33:06 +00:00
Tim Kientzle
9644b0783f For portability, don't rely on libc's strmode(3). <sigh> 2004-05-03 21:05:59 +00:00
Tim Kientzle
020287607f A security issue: An archive containing a symlink to another
directory, then a file with that symlink as a prefix can drop a file
outside of the current directory, which can be a security hole.

Plug this hole by refusing to extract files if a prefix of the
pathname is a symlink.  The -P option disables this check.
2004-05-02 00:43:02 +00:00
Tim Kientzle
855e109158 As suggested by Julian Elischer, use a self-sizing hash
table for the hardlink cache.  This dramatically improves
performance when archiving millions of hardlinked files.

While I'm here, clean up some style bugs (per Bruce Evans)
and clarify some comments.
2004-04-15 22:37:54 +00:00
Tim Kientzle
17834543c8 A simple cache of uid->uname lookups and gid->gname lookups eliminates
almost 1/2 of the CPU time required to create an uncompressed archive
and makes a noticable reduction in wallclock time.
2004-04-14 00:40:54 +00:00
Tim Kientzle
330924f9bd Add support for -T option on create.
(Required by pkg_create.)
2004-04-08 06:12:01 +00:00
Tim Kientzle
d7fe3b4f52 Initial commit for bsdtar. 2004-04-05 21:32:18 +00:00