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150 Commits

Author SHA1 Message Date
kientzle
18881f092f Make -I and --files-from be synonyms for -T 2004-08-13 07:23:02 +00:00
kientzle
74f9ad184e gtar uses -F for another purpose, so bsdtar no longer treats it as a 
synonym for --format.  Update the man page to reflect this.  While
I'm here, change the man page to document "tar" rather than "bsdtar,"
update some comments about -l compatibility and fix a few grammar nits.
 2004-08-08 17:20:23 +00:00
kientzle
0a68c3721e Better low-memory handling: If the link cache runs out of memory, just 
throw out the whole thing and stop tracking links entirely.  That will
break all remaining hardlinks, but should free up enough memory to
let everything finish.
 2004-08-08 06:36:03 +00:00
kientzle
03cc09682b 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
kientzle
0a58439922 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
kientzle
b2443d940f Another pointy-hat problem: PACKAGE_VERSION macro is set in 
CFLAGS, it shouldn't be in bsdtar_platform.h.
Thanks to: Andrey Chernov for looking over my shoulder so much lately.
 2004-08-08 04:36:32 +00:00
kientzle
92956ea0cd Minor portability fixes. bsdtar now compiles on Win32/cygwin, though 
it doesn't yet seem to work entirely correctly.
 2004-08-08 01:30:30 +00:00
kientzle
0457e08c65 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
kientzle
e9c1fd002b Linux port corrections: 
* Add a more reasonable default device for linux
   * Add an autoconf check for the FNM_LEADING_DIR extension
     (which isn't yet obeyed in the code)
 2004-08-07 17:17:11 +00:00
kientzle
a34feb1b97 Add "make distfile" capabilities to bsdtar, including informational 
COPYING file and some conditional compilation cleanups.
 2004-08-07 03:24:49 +00:00
kientzle
147536f641 Ensure that there's always a space between the user name and 
group name in -tv output format.
 2004-08-05 05:46:22 +00:00
kientzle
1a1471049f GNU and POSIX disagree about -o and -l. 
For -l, upset everyone by breaking it.  Specifically, -l now produces
a lengthy error message that suggests --check-links (POSIX -l) or
--one-file-system (GNU -l) instead.  However, if POSIXLY_CORRECT is set,
use the POSIX interpretation.

For -o, please everyone by making it work both ways:
  * -xo uses POSIX behavior
  * -co uses "almost GNU" behavior (as close as we can get until
    libarchive implements a true V7 tar format)
 2004-08-03 06:19:08 +00:00
kientzle
7e43cdbd1b Correct the explanation of the -X option. 
Thanks to: Pav Lucistnik
 2004-08-01 20:09:08 +00:00
kientzle
0f5c530857 Improve portability to FreeBSD 4. 
Thanks to: Barry Bouwsma
 2004-07-30 02:59:58 +00:00
kientzle
a3e93910b1 Fix comment. 
Thanks to: Johan Karlsson
 2004-07-30 02:46:12 +00:00
kientzle
1bb05b6e53 Add a --version option to bsdtar that prints the versions of 
both bsdtar and libarchive.  Of course, this requires that bsdtar
have a version number.  Let's call this 1.00, shall we? ;-)
 2004-07-26 03:21:41 +00:00
kientzle
c2fb7a1b2d A bunch of style and security fixes (error checking return values, etc), 
mostly from: Tim J Robbins
 2004-07-25 04:15:50 +00:00
kientzle
da493b4820 Of course, I meant POSIX.1-1996, not 1997. 
Thanks to: Andrey Chernov
 2004-07-25 00:31:24 +00:00
kientzle
4eaecd41f3 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
kientzle
88f0f4dce8 My bad: /dev/sa0, no 'r' 
Thanks (and many apologies) to: Cristoph Mallon
 2004-07-21 06:43:10 +00:00
kientzle
adcf12a12b Guard against argv[0] being NULL. 
Thanks to: Tim J Robbins
 2004-07-19 14:54:38 +00:00
kientzle
f05f002393 Fix some misspellings, document the TAPE environment 
variable and the default tape device.
 2004-07-19 05:24:41 +00:00
kientzle
8b3e9f1e03 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
kientzle
c25602666f Make bsdtar the default system tar. This makes /usr/bin/tar a symlink 
pointing to /usr/bin/bsdtar by default.  To make it point to /usr/bin/gtar,
you can define WITH_GTAR.
 2004-07-17 06:03:47 +00:00
kientzle
7f77b9d9fb 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
kientzle
429d9c9041 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
kientzle
5961a5ef84 Mimic ls(1) by putting an extra space before the year in old dates 2004-07-12 13:15:13 +00:00
kientzle
2e69e93b3c Fix tab/space screwup in long_help() 2004-07-12 13:13:42 +00:00
ru
3832f1d915 Fixed cross-references in SEE ALSO. 
Emininated double space and hard sentence breaks.
 2004-07-04 21:15:37 +00:00
kientzle
7bcd416f50 Pass the pointy hat, please: 
All of --help should go to stdout, not some to stdout and some to stderr.
 2004-07-04 18:13:01 +00:00
ru
fb1d8b3724 Mechanically kill hard sentence breaks. 2004-07-02 22:22:35 +00:00
kientzle
b7e4060b9b Add yet another synonym for -n. 2004-06-28 14:02:22 +00:00
kientzle
4965bc7e55 Update -p: 
* Don't change the umask; the library now ignores the umask if
    you set EXTRACT_PERM
  * Set the EXTRACT_ACL and EXTRACT_FFLAGS bits (used to be
    controlled by EXTRACT_PERM).
 2004-06-27 23:29:44 +00:00
kientzle
34ed55636f Warn about stripping leading '/' when creating archives. 2004-06-27 18:32:14 +00:00
kientzle
2e75ccba07 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
kientzle
6d1f3e3cef Fix "@-" which has apparently been broken for some time. <sigh> 
While I'm here, add in a lot more error-checking around append_archive.
 2004-06-27 03:28:13 +00:00
kientzle
4731df16a2 Don't abort immediately on directory change errors. 
Instead, display a warning, clean up, and let main() return the error.
In particular, this means that chdir() problems won't leave broken
archives, though they will prompt an error exit value.
 2004-06-27 01:08:54 +00:00
kientzle
168c978957 Document the -W convention for accessing long options. 
Also correct an old error: there was no tar command in Sixth Edition.
 2004-06-26 22:58:29 +00:00
kientzle
b217b2ee33 Rename C=dir to -C dir, which is what people expect. 
This requires some non-trivial surgery to the options parsing.

While here, let people who only have getopt() access long options
through the -W longopt=value convention.
 2004-06-26 22:49:51 +00:00
kientzle
60240199d8 Update some internal comments about the --no-same-permissions option. 
Thanks to: Kris Kennaway for doing some gtar research for me.
 2004-06-15 07:16:44 +00:00
kientzle
c1c16931aa As near as I can tell, --no-same-permissions is a no-op in 
gtar, so that makes it easy to implement.

Required by: audio/timidity port
Thanks to: Kris Kennaway
 2004-06-15 06:44:41 +00:00
kientzle
da30afcf78 Oops. bsdtar's old -X option didn't take an argument; the new 
(gtar-compatible) one does require an argument.
 2004-06-15 06:24:54 +00:00
kientzle
5ace8b9fe9 Add gtar-compatible -X/--exclude-from 2004-06-15 05:55:41 +00:00
kientzle
e4e2071ab4 Fix build. 2004-06-15 01:51:45 +00:00
kientzle
09f8eaea14 Rename -X to --one-file-system, as GNU tar uses -X for 
something else.  I would really like a short option for
this, but all of the obvious ones conflict with something else.
 2004-06-15 00:28:34 +00:00
kientzle
1b46d4f7ae Clean up usage message(s): 
* Usage goes to stderr, not stdout
  * Use correct argument markup
  * bsdtar --help  no longer exits with an error return code
  * ensure that the word "bsdtar" appears in the first
    line output from "bsdtar --help" (even if the program is
    invoked as "tar")

In particular, scripts can now test for the presence of bsdtar.
For example, in /bin/sh:

if (tar --help 2>&1 | grep bsdtar >/dev/null 2>&1) then \
          echo bsdtar; else echo not bsdtar; fi
 2004-06-15 00:07:23 +00:00
kientzle
4125920b23 Oops: gtar's --dereference should be a synonym for bsdtar's -L, not -H. 
Pointed out by: devel/nspr port
Thanks to: Kris Kennaway
 2004-06-11 01:35:56 +00:00
kientzle
6404643ce9 Set program exit value to 1 if there are any of various errors when 
creating an archive.

Pointed out by: Failure to complain when building certain broken packages
(Thanks again to Kris Kennaway for finding this!)
 2004-06-07 07:19:04 +00:00
kientzle
0769b9f0d6 Fix the symlink-detection code. Don't squawk if we're just replacing 
an existing symlink (as might happen if you extract an archive twice).
Also, if we remove the offending link, then we've removed the problem
and can safely go forward with the extraction.

Pointed out by: print/adobe-cmaps port (whose distfile has
	duplicate entries for the same symlinks)
Thanks to: Kris Kennaway (for using ports as a testbed for bsdtar)
 2004-06-07 04:10:43 +00:00
kientzle
42e3d5a649 The --include='pattern' option is the natural counterpart to 
--exclude='pattern'.

I should have added this a long time ago, since it's so useful for testing.
In particular, it allows me to select a few entries from a troublesome
archive so that I can easily focus my debugging efforts:
   bsdtar -czf new.tgz --include='*foo*' @old.tgz
 2004-06-07 03:49:48 +00:00
kientzle
270635f958 Ooops! Previous commit added an over-zealous error check. 
It is, in fact, perfectly legal to not specify a compression when
writing an archive. <sigh>
 2004-06-07 03:38:17 +00:00
kientzle
eadec7015b If -b is specified, then force full padding for the last block. 2004-06-07 03:19:57 +00:00
kientzle
299fedaaae Per style(9), don't use double spaces in expressions. 
Pointed out by: njl, des.
 2004-06-07 03:16:18 +00:00
kientzle
4cb95ee702 Pointy hat: sticky bit 't' or 'T' is shown over IXOTH bit, not IXGRP. <sigh> 2004-06-03 23:43:40 +00:00
kientzle
44e8bf5a41 Improve help handling: 
* --help produces long help message on systems with getopt_long
   * -h with no other options also produces long help message
     (If a mode is specified, -h has its usual meaning.)
 2004-06-02 21:01:27 +00:00
kientzle
3ffc90b560 Both "foo/" and "foo" should match "foo/bar", so strip 
trailing '/' characters on include patterns for extraction.

Pointed out by: games/quakeforge port (thanks to Kris!)
 2004-06-02 07:23:54 +00:00
kientzle
f939002db3 Correction: -h should be a synonym for -L, not -H. 
(as specified by Linux Standards Base, GNU tar, and 4.4BSD documentation)
 2004-05-31 20:22:41 +00:00
kientzle
b1210dbf1b Permit (but ignore) -Z with -x or -t, now that libarchive 
recognizes and decompresses .Z format.
 2004-05-30 00:09:43 +00:00
kientzle
cd6cc0b3f2 Minor corrections to error handling and user notifications: 
* Move format/compression reporting to end of output, since
  we don't always know the input format until then.
* Set bsdtar exit value to 1 if any file could not be restored.
* Generate gtar-style warning when stripping leading '/' characters.
* Warn when removing symlinks.
 2004-05-27 04:35:36 +00:00
kientzle
7d4928cd75 Provide framework for exiting with non-zero value on non-critical errors. 2004-05-27 04:30:59 +00:00
kientzle
cedda3bff2 Add --no-same-owner as a synonym for -o. 
Note that bsdtar's -o (which follows SUSv2) is not the same as GNU tar's -o.
In GNU tar, -o and --no-same-owner are not synonyms.

Pointed out by: Kris Kennaway (required by xpenguins port)
 2004-05-22 17:49:54 +00:00
kientzle
9da5e919aa Add --dereference as a synonym for -H 
Pointed out by: Kris Kennaway (unbreaks nspr port build)
 2004-05-21 18:40:32 +00:00
kientzle
e3a31f8a6e Default is to restore timestamps, even when operating as root. <sigh> 2004-05-19 01:21:11 +00:00
kientzle
2ccbdbb7fe Fix a segfault when looking up a non-existent group. 2004-05-18 23:40:25 +00:00
kientzle
014551a39f Accept (but ignore) GNU tar's -B option. bsdtar never 
needs it, but it does no harm for people to specify it.
 2004-05-18 17:16:55 +00:00
kientzle
75a7f5bd6e Set errno to 0 before calling getpwuid/getgrgid, so that error 
messages will be displayed only when there is, in fact, an error.
 2004-05-17 18:29:12 +00:00
kientzle
cf027fa3ed Speed up safe_fprintf by copying to a temp buffer, then writing 
blocks at a time, rather than using putc().
 2004-05-17 07:35:52 +00:00
kientzle
7ac80717ef Propagate struct bsdtar down into a lot more places. 
Move global progname variable into struct bsdtar.
 2004-05-17 05:44:53 +00:00
kientzle
7590026eae 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
kientzle
87b26a4b19 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
kientzle
91a38a30fb Update manpage to track new security features. 2004-05-17 03:19:31 +00:00
kientzle
0e6668dd2e Add --unlink and --unlink-first synonyms for -U 
Make indentation of tar_longopts array more consistent.
 2004-05-05 21:06:37 +00:00
kientzle
34a7b89d37 Contrariwise, Linux sys/stat.h doesn't define mode_t and friends, 
even though POSIX requires it.  <sigh>
 2004-05-04 21:40:09 +00:00
kientzle
7a80636e7f Include local copies of fts.c and fts.h to be used ONLY on non-FreeBSD 
systems.  The fts.h here is an exact copy of include/fts.h (except for
an initial explanatory comment and the revision tags, of course).  The
fts.c here is slightly modified from lib/libc/gen/fts.c so it can
compile correctly on non-FreeBSD systems.
 2004-05-04 17:21:01 +00:00
kientzle
cc93bc17a0 For portability, don't rely on libc's strmode(3). <sigh> 2004-05-03 21:05:59 +00:00
kientzle
79697f7186 Correct copy/paste error in Linux nodump support. 
Thanks to: Juergen Lock for his continuing patience
while I botch his patches.
 2004-05-03 16:56:42 +00:00
kientzle
490330a22a Style: Use single tab after #define 2004-05-02 22:58:18 +00:00
kientzle
a33004e479 More of Juergen Lock's patches for Linux. 
(fflags support on Linux, nanosecond timestamp portability, enable
64-bit file offsets)
 2004-05-02 18:10:35 +00:00
kientzle
e3af2353c4 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
kientzle
867bb40c44 -U is now implemented. (It's been recognized by bsdtar for a while; 
now libarchive actually supports the underlying request.)
 2004-04-29 05:22:13 +00:00
kientzle
83ecd7781e Refuse to extract entries with '..' in pathname. 
Pointed out by: David Schultz
 2004-04-28 18:53:07 +00:00
kientzle
927b01d312 Remove information about specific formats; replace with a 
reference to libarchive-formats(5).
 2004-04-28 04:43:57 +00:00
kientzle
06760f99a1 Update write.c to follow recent API changes to libarchive. 
Also, bump up the default copy buffer from 8k to 64k
to improve performance.
 2004-04-26 23:39:17 +00:00
kientzle
fe93d4f02e Fix username/groupname cache so it returns a name that 
was just looked up by get{pw,gr}id().  Otherwise, it
returns a NULL name unless it's already in the cache.

Credit to Juergen Lock.
 2004-04-23 16:33:51 +00:00
kientzle
15ca1ccb2d Eliminate a redundant call to archive_entry_set_pathname() 2004-04-21 05:16:28 +00:00
kientzle
6dec29ccab Allow brave souls to install bsdtar as the 
default "tar" command by defining WITH_BSDTAR.

Note: "gtar" and "bsdtar" commands both exist regardless.
 2004-04-19 22:09:04 +00:00
kientzle
484ec180f1 --help is only supported if you have getopt_long(). 
This allows bsdtar to compile on FreeBSD 4.x.
 2004-04-16 03:50:04 +00:00
kientzle
2b19543d6c 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
kientzle
58455f9e3f 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
kientzle
2d6a22a91d When all the links to a file have been dumped, don't forget 
to free() the memory used to store the filename.
 2004-04-13 23:50:48 +00:00
kientzle
a67431b09b Eliminate a lot of malloc/free calls by using 
a stack-allocated buffer for safe_fprintf formatting.
Only if the result is too large do we resort to malloc.
 2004-04-13 23:49:02 +00:00
kientzle
ec9a891664 Manpage changes suggested by Irina Liakh. 
Also, add -h as a synonym for -H, for Linux Standards Base compliance.
 2004-04-13 19:45:55 +00:00
kientzle
d1f2ebdf42 Style fixes 
Pointed out by: bde
 2004-04-12 18:06:07 +00:00
kientzle
cd3b6fa4ac Add DPADD to Makefile (thanks to Andrey for pointing this out). 
Generally clean up Makefile, remove dmalloc references from source
(there are better ways to do this than pollute the FreeBSD src tree).
 2004-04-12 00:13:23 +00:00
kientzle
e5943c5d79 Allow arguments to appear in any order. 
While I'm here, add a couple of extra sanity-checks to
the argument parsing (reject -j -z, for instance) and
update the docs a bit.

Requested by: most everyone ;-)
 2004-04-08 19:37:01 +00:00
kientzle
72bca63fd4 Document the newly-implemented -T option. 2004-04-08 06:21:03 +00:00
kientzle
1b8aab3f61 Add support for -T option on create. 
(Required by pkg_create.)
 2004-04-08 06:12:01 +00:00
kientzle
a970bab144 Correct signature in alternative stub implementation of setup_acls() 2004-04-07 17:43:48 +00:00
kientzle
a356af4fc7 Archive both access and default ACLs. 2004-04-06 23:08:31 +00:00
kientzle
2588e5ad7a Initial commit for bsdtar. 2004-04-05 21:32:18 +00:00