Commit Graph

972 Commits

Author SHA1 Message Date
Lasse Collin 5ea900cb5a liblzma: Be less picky in lzma_alone_decoder().
To avoid false positives when detecting .lzma files,
rare values in dictionary size and uncompressed size fields
were rejected. They will still be rejected if .lzma files
are decoded with lzma_auto_decoder(), but when using
lzma_alone_decoder() directly, such files will now be accepted.
Hopefully this is an OK compromise.

This doesn't affect xz because xz still has its own file
format detection code. This does affect lzmadec though.
So after this commit lzmadec will accept files that xz or
xz-emulating-lzma doesn't.

NOTE: lzma_alone_decoder() still won't decode all .lzma files
because liblzma's LZMA decoder doesn't support lc + lp > 4.

Reported here:
http://sourceforge.net/projects/lzmautils/forums/forum/708858/topic/7068827
2013-03-23 22:25:15 +02:00
Lasse Collin bb117fffa8 liblzma: Use lzma_block_buffer_bound64() in threaded encoder.
Now it uses lzma_block_uncomp_encode() if the data doesn't
fit into the space calculated by lzma_block_buffer_bound64().
2013-03-23 21:55:13 +02:00
Lasse Collin e572e123b5 liblzma: Fix another deadlock in the threaded encoder.
This race condition could cause a deadlock if lzma_end() was
called before finishing the encoding. This can happen with
xz with debugging enabled (non-debugging version doesn't
call lzma_end() before exiting).
2013-03-23 21:51:38 +02:00
Lasse Collin b465da5988 liblzma: Add lzma_block_uncomp_encode().
This also adds a new internal function
lzma_block_buffer_bound64() which is similar to
lzma_block_buffer_bound() but uses uint64_t instead
of size_t.
2013-03-23 19:17:33 +02:00
Lasse Collin 9e6dabcf22 Avoid unneeded use of awk in xzless.
Use "read" instead of "awk" in xzless to get the version
number of "less". The need for awk was introduced in
the commit db5c1817fa.

Thanks to Ariel P for the patch.
2013-03-05 19:14:50 +02:00
Lasse Collin e7b424d267 Make the progress indicator smooth in threaded mode.
This adds lzma_get_progress() to liblzma and takes advantage
of it in xz.

lzma_get_progress() collects progress information from
the thread-specific structures so that fairly accurate
progress information is available to applications. Adding
a new function seemed to be a better way than making the
information directly available in lzma_stream (like total_in
and total_out are) because collecting the information requires
locking mutexes. It's waste of time to do it more often than
the up to date information is actually needed by an application.
2012-12-14 20:13:32 +02:00
Lasse Collin 2ebbb994e3 liblzma: Fix mythread_sync for nested locking. 2012-12-14 11:01:41 +02:00
Lasse Collin 4c7e28705f xz: Mention --threads in --help.
Thanks to Olivier Delhomme for pointing out that this
was still missing.
2012-12-13 21:05:36 +02:00
Jonathan Nieder db5c1817fa xzless: Make "less -V" parsing more robust
In v4.999.9beta~30 (xzless: Support compressed standard input,
2009-08-09), xzless learned to parse ‘less -V’ output to figure out
whether less is new enough to handle $LESSOPEN settings starting
with “|-”.  That worked well for a while, but the version string from
‘less’ versions 448 (June, 2012) is misparsed, producing a warning:

	$ xzless /tmp/test.xz; echo $?
	/usr/bin/xzless: line 49: test: 456 (GNU regular expressions): \
	integer expression expected
	0

More precisely, modern ‘less’ lists the regexp implementation along
with its version number, and xzless passes the entire version number
with attached parenthetical phrase as a number to "test $a -gt $b",
producing the above confusing message.

	$ less-444 -V | head -1
	less 444
	$ less -V | head -1
	less 456 (no regular expressions)

So relax the pattern matched --- instead of expecting "less <number>",
look for a line of the form "less <number>[ (extra parenthetical)]".
While at it, improve the behavior when no matching line is found ---
instead of producing a cryptic message, we can fall back on a LESSPIPE
setting that is supported by all versions of ‘less’.

The implementation uses "awk" for simplicity.  Hopefully that’s
portable enough.

Reported-by: Jörg-Volker Peetz <jvpeetz@web.de>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2012-11-21 19:19:44 +02:00
Lasse Collin 65536214a3 xz: Fix the note about --rsyncable on the man page. 2012-10-03 15:54:24 +03:00
Lasse Collin 3d93b63549 xz: Improve handling of failed realloc in xrealloc.
Thanks to Jim Meyering.
2012-09-28 20:11:09 +03:00
Lasse Collin ab22562066 A few typo fixes to comments and the xz man page.
Thanks to Jim Meyering.
2012-08-24 16:27:31 +03:00
Lasse Collin f3c1ec69d9 xz: Add a warning to --help about alpha and beta versions. 2012-08-13 21:40:09 +03:00
Lasse Collin d8eaf9d827 Build: Bump gettext version requirement to 0.18.
Otherwise too old version of m4/lib-link.m4 gets included
when autoreconf -fi is run.
2012-08-02 17:13:30 +03:00
Lasse Collin 96e08902b0 Update THANKS. 2012-07-17 18:29:08 +03:00
Lasse Collin 3778db1be5 liblzma: Make the use of lzma_allocator const-correct.
There is a tiny risk of causing breakage: If an application
assigns lzma_stream.allocator to a non-const pointer, such
code won't compile anymore. I don't know why anyone would do
such a thing though, so in practice this shouldn't cause trouble.

Thanks to Jan Kratochvil for the patch.
2012-07-17 18:19:59 +03:00
Lasse Collin d625c7cf82 Tests: Remove tests/test_block.c that had gotten committed accidentally. 2012-07-05 07:36:28 +03:00
Lasse Collin 0b09d266cc Build: Include macosx/build.sh in the distribution.
It has been in the Git repository since 2010 but probably
few people have seen it since it hasn't been included in
the release tarballs. :-(
2012-07-05 07:33:35 +03:00
Lasse Collin d6e0b23d46 Build: Include validate_map.sh in the distribution.
It's required by "make mydist".

Fix also the location of EXTRA_DIST+= so that those files
get distributed also if symbol versioning isn't enabled.
2012-07-05 07:28:53 +03:00
Lasse Collin 19de545d86 Docs: Fix the name LZMA Utils -> XZ Utils in debug/README. 2012-07-05 07:24:45 +03:00
Lasse Collin 672eccf57c Include debug/translation.bash in the distribution.
Also fix the script name mentioned in README.
2012-07-05 07:23:17 +03:00
Lasse Collin cafb523ada xz: Document --block-list better.
Thanks to Jonathan Nieder.
2012-07-04 22:31:58 +03:00
Lasse Collin c7ff218528 Bump the version number to 5.1.2alpha. 2012-07-04 20:01:49 +03:00
Lasse Collin 8f3c1d886f Update NEWS for 5.1.2alpha. 2012-07-04 20:01:19 +03:00
Lasse Collin 0d5fa05466 xz: Fix the version number printed by xz -lvv.
The decoder bug was fixed in 5.0.2 instead of 5.0.3.
2012-07-04 19:58:23 +03:00
Lasse Collin df11317985 Build: Add a comment to configure.ac about symbol versioning. 2012-07-04 17:11:31 +03:00
Lasse Collin bd9cc179e8 Update TODO. 2012-07-04 17:06:49 +03:00
Lasse Collin 4a238dd9b2 Document --enable-symbol-versions in INSTALL. 2012-07-04 17:05:46 +03:00
Lasse Collin 88ccf47205 xz: Add incomplete support for --block-list.
It's broken with threads and when also --block-size is used.
2012-07-03 21:16:39 +03:00
Lasse Collin 972179cdcd xz: Update the man page about the new field in --robot -lvv. 2012-07-01 18:44:33 +03:00
Lasse Collin 1403707fc6 liblzma: Check that the first byte of range encoded data is 0x00.
It is just to be more pedantic and thus perhaps catch broken
files slightly earlier.
2012-06-28 10:47:49 +03:00
Lasse Collin eccd8017ff Update NEWS from 5.0.4. 2012-06-22 19:00:23 +03:00
Lasse Collin 2e6754eac2 xz: Update man page date to match the latest update. 2012-06-22 14:34:03 +03:00
Lasse Collin b3235a0b1a Docs: Language fix to 01_compress_easy.c.
Thanks to Jonathan Nieder.
2012-06-18 21:27:47 +03:00
Lasse Collin f1675f765f Fix the top-level Makefile.am for the new example programs. 2012-06-14 20:15:30 +03:00
Lasse Collin 3a0c5378ab Docs: Add new example programs.
These have more comments than the old examples and
human-readable error messages. More tutorial-like examples
are needed but these are a start.
2012-06-14 10:52:33 +03:00
Lasse Collin 1bd2c2c553 Docs: Move xz_pipe_comp.c and xz_pipe_decomp.c to doc/examples_old.
It is good to keep these around to so that if someone has
copied the decompressor bug from xz_pipe_decomp.c he has
an example how to easily fix it.
2012-06-14 10:33:27 +03:00
Lasse Collin 905f0ab5b5 Docs: Fix a bug in xz_pipe_decomp.c example program. 2012-06-14 10:33:01 +03:00
Lasse Collin 4bd1a3bd5f Translations: Update the French translation.
Thanks to Adrien Nader.
2012-05-30 23:14:33 +03:00
Lasse Collin d2e836f2f3 Translations: Update the German translation.
The previous only included the new strings in v5.0.
2012-05-29 23:42:37 +03:00
Lasse Collin c9a1615157 Translations: Update the German translation. 2012-05-29 22:26:27 +03:00
Lasse Collin 1530a74fd4 Translations: Update Polish translation. 2012-05-29 22:14:21 +03:00
Lasse Collin d8db706acb liblzma: Fix possibility of incorrect LZMA_BUF_ERROR.
lzma_code() could incorrectly return LZMA_BUF_ERROR if
all of the following was true:

  - The caller knows how many bytes of output to expect
    and only provides that much output space.

  - When the last output bytes are decoded, the
    caller-provided input buffer ends right before
    the LZMA2 end of payload marker. So LZMA2 won't
    provide more output anymore, but it won't know it
    yet and thus won't return LZMA_STREAM_END yet.

  - A BCJ filter is in use and it hasn't left any
    unfiltered bytes in the temp buffer. This can happen
    with any BCJ filter, but in practice it's more likely
    with filters other than the x86 BCJ.

Another situation where the bug can be triggered happens
if the uncompressed size is zero bytes and no output space
is provided. In this case the decompression can fail even
if the whole input file is given to lzma_code().

A similar bug was fixed in XZ Embedded on 2011-09-19.
2012-05-28 20:42:11 +03:00
Lasse Collin 3f94b6d87f Update THANKS. 2012-05-28 15:38:32 +03:00
Lasse Collin 7769ea051d xz: Don't show a huge number in -vv when memory limit is disabled. 2012-05-28 15:37:43 +03:00
Lasse Collin ec92110572 xz: Document the "summary" lines of --robot -lvv.
This documents only the columns that are in v5.0.
The new columns added in the master branch aren't
necessarily stable yet.
2012-05-27 22:30:17 +03:00
Lasse Collin 27d24eb0a9 xz: Fix output of verbose --robot --list modes.
It printed the filename in "filename (x/y)" format
which it obviously shouldn't do in robot mode.
2012-05-27 21:53:20 +03:00
Lasse Collin ab25b82a91 Build: Upgrade m4/acx_pthread.m4 to the latest version. 2012-05-24 18:33:54 +03:00
Lasse Collin d05d6d65c4 Update THANKS. 2012-05-10 21:15:17 +03:00
Lasse Collin e077391982 Docs: Cleanup line wrapping a bit. 2012-05-10 21:14:16 +03:00