Commit Graph

1364 Commits

Author SHA1 Message Date
Lasse Collin 3e321a3acd Remove doubled words from documentation and comments.
Spot candidates by running these commands:
  git ls-files |xargs perl -0777 -n \
    -e 'while (/\b(then?|[iao]n|i[fst]|but|f?or|at|and|[dt]o)\s+\1\b/gims)' \
    -e '{$n=($` =~ tr/\n/\n/ + 1); ($v=$&)=~s/\n/\\n/g; print "$ARGV:$n:$v\n"}'

Thanks to Jim Meyering for the original patch.
2011-04-12 11:59:49 +03:00
Lasse Collin 70e750f597 xz: Update the man page about threading. 2011-04-12 11:08:55 +03:00
Lasse Collin 24e0406c0f xz: Add support for threaded compression. 2011-04-11 22:06:03 +03:00
Lasse Collin de678e0c92 liblzma: Add lzma_stream_encoder_mt() for threaded compression.
This is the simplest method to do threading, which splits
the uncompressed data into blocks and compresses them
independently from each other. There's room for improvement
especially to reduce the memory usage, but nevertheless,
this is a good start.
2011-04-11 22:03:30 +03:00
Lasse Collin 25fe729532 liblzma: Add the forgotten lzma_lzma2_block_size().
This should have been in 5eefc0086d.
2011-04-11 21:15:07 +03:00
Lasse Collin 91afb785a1 liblzma: Document lzma_easy_(enc|dec)oder_memusage() better too. 2011-04-11 21:04:13 +03:00
Lasse Collin 4a9905302a liblzma: Document lzma_raw_(enc|dec)oder_memusage() better.
It didn't mention the return value that is used if
an error occurs.
2011-04-11 20:59:07 +03:00
Lasse Collin 0badb0b1bd liblzma: Use memzero() to initialize supported_actions[].
This is cleaner and makes it simpler to add new members
to lzma_action enumeration.
2011-04-11 19:28:18 +03:00
Lasse Collin a7934c446a liblzma: API comment about lzma_allocator with threaded coding. 2011-04-11 19:26:27 +03:00
Lasse Collin 5eefc0086d liblzma: Add an internal function lzma_mt_block_size().
This is based lzma_chunk_size() that was included in some
development version of liblzma.
2011-04-11 19:16:30 +03:00
Lasse Collin d119927475 liblzma: Don't create an empty Block in lzma_stream_buffer_encode().
Empty Block was created if the input buffer was empty.
Empty Block wastes a few bytes of space, but more importantly
it triggers a bug in XZ Utils 5.0.1 and older when trying
to decompress such a file. 5.0.1 and older consider such
files to be corrupt. I thought that no encoder creates empty
Blocks when releasing 5.0.2 but I was wrong.
2011-04-11 13:59:50 +03:00
Lasse Collin 3b22fc2c87 liblzma: Fix API docs to mention LZMA_UNSUPPORTED_CHECK.
This return value was missing from the API comments of
four functions.
2011-04-11 13:28:40 +03:00
Lasse Collin 71b9380145 liblzma: Validate encoder arguments better.
The biggest problem was that the integrity check type
wasn't validated, and e.g. lzma_easy_buffer_encode()
would create a corrupt .xz Stream if given an unsupported
Check ID. Luckily applications don't usually try to use
an unsupport Check ID, so this bug is unlikely to cause
many real-world problems.
2011-04-11 13:21:28 +03:00
Lasse Collin ec7e3dbad7 xz: Move the description of --block-size in --long-help. 2011-04-11 09:57:30 +03:00
Lasse Collin cd3086ff44 Docs: Document --single-stream and --block-size. 2011-04-11 09:55:35 +03:00
Lasse Collin fb64a49243 liblzma: Make lzma_stream_encoder_init() static (second try).
It's an internal function and it's not needed by
anything outside stream_encoder.c.
2011-04-11 09:27:57 +03:00
Lasse Collin a34730cf6a Revert "liblzma: Make lzma_stream_encoder_init() static."
This reverts commit 352ac82db5.
I don't know what I was thinking.
2011-04-11 08:31:42 +03:00
Lasse Collin 9f0a806aef Revise mythread.h.
This adds:

  - mythread_sync() macro to create synchronized blocks

  - mythread_cond structure and related functions
    and macros for condition variables with timed
    waiting using a relative timeout

  - mythread_create() to create a thread with all
    signals blocked

Some of these wouldn't need to be inline functions,
but I'll keep them this way for now for simplicity.

For timed waiting on a condition variable, librt is
now required on some systems to use clock_gettime().
configure.ac was updated to handle this.
2011-04-10 21:23:21 +03:00
Lasse Collin 352ac82db5 liblzma: Make lzma_stream_encoder_init() static.
It's an internal function and it's not needed by
anything outside stream_encoder.c.
2011-04-10 20:37:36 +03:00
Lasse Collin ebd54dbd6e xz/DOS: Add experimental 8.3 filename support.
This is incompatible with the 8.3 support patch made by
Juan Manuel Guerrero. I think this one is nicer, but
I need to get feedback from DOS users before saying
that this is the final version of 8.3 filename support.
2011-04-10 13:09:42 +03:00
Lasse Collin cd4fe97852 xz/DOS: Be more careful with the destination file.
Try to avoid overwriting the source file if --force is
used and the generated destination filename refers to
the source file. This can happen with 8.3 filenames where
extra characters are ignored.

If the generated output file refers to a special file
like "con" or "prn", refuse to write to it even if --force
is used.
2011-04-10 12:47:47 +03:00
Lasse Collin fca396b374 liblzma: Add missing #ifdefs to filter_common.c.
Passing --disable-decoders to configure broke a few
encoders due to missing #ifdefs in filter_common.c.

Thanks to Jason Gorski for the patch.
2011-04-09 18:28:58 +03:00
Lasse Collin b03f6cd3eb xz: Avoid unneeded fstat() on DOS-like systems. 2011-04-09 15:24:59 +03:00
Lasse Collin 335fe260a8 xz: Minor internal changes to handling of --threads.
Now it always defaults to one thread. Maybe this
will change again if a threading method is added
that doesn't affect memory usage.
2011-04-09 15:11:13 +03:00
Lasse Collin 9edd6ee895 xz: Change size_t to uint32_t in a few places. 2011-04-08 17:53:05 +03:00
Lasse Collin 411013ea45 xz: Fix a typo in a comment. 2011-04-08 17:48:41 +03:00
Lasse Collin b34c5ce4b2 liblzma: Use TUKLIB_GNUC_REQ to check GCC version in sha256.c. 2011-04-05 22:41:33 +03:00
Lasse Collin 1039bfcfc0 xz: Use posix_fadvise() if it is available. 2011-04-05 15:27:26 +03:00
Lasse Collin 1ef3cf44a8 xz: Call lzma_end(&strm) before exiting if debugging is enabled. 2011-04-05 15:13:29 +03:00
Lasse Collin bd432015d3 liblzma: Fix a memory leak in stream_encoder.c.
It leaks old filter options structures (hundred bytes or so)
every time the lzma_stream is reinitialized. With the xz tool,
this happens when compressing multiple files.
2011-04-02 14:49:56 +03:00
Lasse Collin 0d21f49a80 liblzma: Fix decoding of LZMA2 streams having no uncompressed data.
The decoder considered empty LZMA2 streams to be corrupt.
This shouldn't matter much with .xz files, because no encoder
creates empty LZMA2 streams in .xz. This bug is more likely
to cause problems in applications that use raw LZMA2 streams.
2011-03-31 11:54:48 +03:00
Lasse Collin 40277998cb Scripts: Better fix for xzgrep.
Now it uses "grep -q".

Thanks to Gregory Margo.
2011-03-24 01:42:49 +02:00
Lasse Collin c7210d9a3f Scripts: Fix xzgrep -l.
It didn't work at all. It tried to use the -q option
for grep, but it appended it after "--". This works
around it by redirecting to /dev/null. The downside
is that this can be slower with big files compared
to proper use of "grep -q".

Thanks to Gregory Margo.
2011-03-24 01:21:32 +02:00
Lasse Collin 4eb83e3204 Scripts: Add lzop (.lzo) support to xzdiff and xzgrep. 2011-03-19 13:08:22 +02:00
Lasse Collin 923b22483b xz: Add --block-size=SIZE.
This uses LZMA_FULL_FLUSH every SIZE bytes of input.

Man page wasn't updated yet.
2011-03-18 19:10:30 +02:00
Lasse Collin 57597d42ca xz: Add --single-stream.
This can be useful when there is garbage after the
compressed stream (.xz, .lzma, or raw stream).

Man page wasn't updated yet.
2011-03-18 18:19:19 +02:00
Lasse Collin 96f94bc925 xz: Clean up suffix.c.
struct suffix_pair isn't needed in compresed_name()
so get rid of it there.
2011-02-06 20:16:14 +02:00
Lasse Collin 8930c7ae3f xz: Check if the file already has custom suffix when compressing.
Now "xz -S .test foo.test" refuses to compress the
file because it already has the suffix .test. The man
page had it documented this way already.
2011-02-06 20:16:14 +02:00
Lasse Collin 6dd061adfd Merge commit '5fbce0b8d96dc96775aa0215e3581addc830e23d' 2011-02-06 20:13:01 +02:00
Lasse Collin 03ebd1bbb3 xz: Fix --force on setuid/setgid/sticky and multi-hardlink files.
xz didn't compress setuid/setgid/sticky files and files
with multiple hard links even with --force. This bug was
introduced in 23ac2c44c3.

Thanks to Charles Wilson.
2011-01-26 12:19:08 +02:00
Lasse Collin 9d542ceebc Merge branch 'v5.0' 2011-01-19 11:45:35 +02:00
Lasse Collin f71c4e16e9 Add alloc_size and malloc attributes to a few functions.
Thanks to Cristian Rodríguez for the original patch.
2011-01-18 21:23:50 +02:00
Lasse Collin 316cbe2446 Scripts: Fix gzip and bzip2 support in xzdiff. 2010-12-13 16:36:33 +02:00
Lasse Collin 4f2c69a4e3 Merge branch 'v5.0' 2010-12-12 23:13:22 +02:00
Lasse Collin ce56f63c41 Add missing PRIx32 and PRIx64 compatibility definitions.
This fixes portability to systems that lack C99 inttypes.h.

Thanks to Juan Manuel Guerrero.
2010-12-12 16:07:11 +02:00
Lasse Collin e6baedddcf DOS-like: Treat \ and : as directory separators in addition to /.
Juan Manuel Guerrero had fixed this in his XZ Utils port
to DOS/DJGPP. The bug affects also Windows and OS/2.
2010-12-12 14:50:04 +02:00
Lasse Collin 7c24e0d1b8 Merge branch 'v5.0' 2010-11-15 14:33:01 +02:00
Lasse Collin 3e564704bc liblzma: Document the return value of lzma_lzma_preset(). 2010-11-15 14:28:26 +02:00
Lasse Collin 974ebe6349 liblzma: Rename a few variables and constants.
This has no semantic changes. I find the new names slightly
more logical and they match the names that are already used
in XZ Embedded.

The name fastpos wasn't changed (not worth the hassle).
2010-10-26 10:36:41 +03:00
Lasse Collin 7c427ec38d Bump version 5.1.0alpha. 2010-10-25 12:59:25 +03:00
Lasse Collin b667a3ef63 Bump version to 5.0.0 and liblzma version-info to 5:0:0. 2010-10-23 14:02:53 +03:00
Lasse Collin 8c947e9291 liblzma: Make lzma_code() check the reserved members in lzma_stream.
If any of the reserved members in lzma_stream are non-zero
or non-NULL, LZMA_OPTIONS_ERROR is returned. It is possible
that a new feature in the future is indicated by just setting
a reserved member to some other value, so the old liblzma
version need to catch it as an unsupported feature.
2010-10-23 12:30:54 +03:00
Lasse Collin e61d85e082 Windows: Use MinGW's stdio functions.
The non-standard ones from msvcrt.dll appear to work
most of the time with XZ Utils, but there are some
corner cases where things may go very wrong. So it's
good to use the better replacements provided by
MinGW(-w64) runtime.
2010-10-23 12:26:33 +03:00
Lasse Collin 23e23f1dc0 liblzma: Use 512 as INDEX_GROUP_SIZE.
This lets compiler use shifting instead of 64-bit division.
2010-10-23 12:21:32 +03:00
Lasse Collin 613939fc82 liblzma: A few ABI tweaks to reserve space in structures. 2010-10-23 12:20:11 +03:00
Lasse Collin 68b83f252d xz: Make sure that message_strm() can never return NULL. 2010-10-21 23:16:11 +03:00
Lasse Collin d09c5753e3 liblzma: Update the comments in the API headers.
Adding support for LZMA_FINISH for Index encoding and
decoding needed tiny additions to the relevant .c files too.
2010-10-21 23:06:31 +03:00
Lasse Collin 0076e03641 Clean up a few FIXMEs and TODOs.
lzma_chunk_size() was commented out because it is
currently useless.
2010-10-19 11:44:37 +03:00
Lasse Collin f0fa880d24 xz: Avoid raise() also on OpenVMS.
This is similar to DOS/DJGPP that killing the program
with a signal will print a backtrace or a similar message.
2010-10-12 15:13:30 +03:00
Lasse Collin ac462b1c47 xz: Avoid SA_RESTART for portability reasons.
SA_RESTART is not as portable as I had hoped. It's missing
at least from OpenVMS, QNX, and DJGPP). Luckily we can do
fine without SA_RESTART.
2010-10-11 21:26:19 +03:00
Lasse Collin d52b411716 xz: Use "%"PRIu32 instead of "%d" in a format string. 2010-10-10 17:58:58 +03:00
Lasse Collin d492b80ddd lzmainfo: Use "%"PRIu32 instead of "%u" for uint32_t. 2010-10-10 16:49:01 +03:00
Lasse Collin 825e859a90 lzmainfo: Use fileno(stdin) instead of STDIN_FILENO. 2010-10-10 16:47:01 +03:00
Lasse Collin acbc4cdecb lzmainfo: Use setmode() on DOS-like systems. 2010-10-09 23:20:51 +03:00
Lasse Collin ef364d3abc OS/2 and DOS: Be less verbose on signals.
Calling raise() to kill xz when user has pressed C-c
is a bit verbose on OS/2 and DOS/DJGPP. Instead of
calling raise(), set only the exit status to 1.
2010-10-09 21:51:03 +03:00
Lasse Collin efeb998a2b lzmainfo: Add Windows resource file. 2010-10-09 13:02:15 +03:00
Lasse Collin 389d418445 Add missing public domain notice to lzmadec_w32res.rc. 2010-10-09 12:57:25 +03:00
Lasse Collin 6389c773a4 Windows: Update common_w32res.rc. 2010-10-09 12:52:12 +03:00
Lasse Collin d3cd7abe85 Use LZMA_VERSION_STRING instead of PACKAGE_VERSION.
Those are the same thing, and the former makes it a bit
easier to build the code with other build systems, because
one doesn't need to update the version number into custom
config.h.

This change affects only lzmainfo. Other tools were already
using LZMA_VERSION_STRING.
2010-10-08 16:53:20 +03:00
Lasse Collin b1c7368f95 Build: Add options to disable individual command line tools. 2010-10-08 15:25:45 +03:00
Lasse Collin f9907503f8 Build: Remove the static/dynamic tricks.
Most distros want xz linked against shared liblzma, so
it doesn't help much to require --enable-dynamic for that.
Those who want to avoid PIC on x86-32 to get better
performance, can still do it e.g. by using --disable-shared
to compile xz and then another pass to compile shared liblzma.

Part of these static/dynamic tricks were needed for Windows
in the past. Nowadays we rely on GCC and binutils to do the
right thing with auto-import. If the Autotooled build system
needs to support some other toolchain on Windows in the future,
this may need some rethinking.
2010-10-05 14:13:16 +03:00
Lasse Collin 80b5675fa6 A few more languages files to the xz man page.
Thanks to Jonathan Nieder.
2010-10-04 19:43:01 +03:00
Lasse Collin 61ae593661 liblzma: Small fixes to comments in the API headers. 2010-10-02 11:38:20 +03:00
Lasse Collin 31575a449a Fix accomodate -> accommodate on the xz man page. 2010-09-28 01:17:14 +03:00
Lasse Collin cec0ddc8ec Major man page updates.
Lots of content was updated on the xz man page.

Technical improvements:
  - Start a new sentence on a new line.
  - Use fairly short lines.
  - Use constant-width font for examples (where supported).
  - Some minor cleanups.

Thanks to Jonathan Nieder for some language fixes.
2010-09-27 23:29:34 +03:00
Lasse Collin 075257ab04 Fix the preset -3e.
depth=0 was missing.
2010-09-26 18:10:31 +03:00
Lasse Collin 2108801855 xz: Edit a translators comment. 2010-09-15 00:34:13 +03:00
Lasse Collin a8760203f9 xz: Add a comment to translators about "literal context bits". 2010-09-10 14:09:33 +03:00
Lasse Collin bb0b1004f8 xz: Multiple fixes.
The code assumed that printing numbers with thousand separators
and decimal points would always produce only US-ASCII characters.
This was used for buffer sizes (with snprintf(), no overflows)
and aligning columns of the progress indicator and --list. That
assumption was wrong (e.g. LC_ALL=fi_FI.UTF-8 with glibc), so
multibyte character support was added in this commit. The old
way is used if the operating system doesn't have enough multibyte
support (e.g. lacks wcwidth()).

The sizes of buffers were increased to accomodate multibyte
characters. I don't know how big they should be exactly, but
they aren't used for anything critical, so it's not too bad.
If they still aren't big enough, I hopefully get a bug report.
snprintf() takes care of avoiding buffer overflows.

Some static buffers were replaced with buffers allocated on
stack. double_to_str() was removed. uint64_to_str() and
uint64_to_nicestr() now share the static buffer and test
for thousand separator support.

Integrity check names "None" and "Unknown-N" (2 <= N <= 15)
were marked to be translated. I had forgot these, plus they
wouldn't have worked correctly anyway before this commit,
because printing tables with multibyte strings didn't work.

Thanks to Marek Černocký for reporting the bug about
misaligned table columns in --list output.
2010-09-10 10:30:33 +03:00
Lasse Collin 41bc9956eb xz: Add a note to translators. 2010-09-07 12:31:40 +03:00
Lasse Collin 77a7746616 Fix use of N_() and ngettext().
I had somehow thought that N_() is usually used
as shorthand for ngettext().

This also fixes a missing \n from a call to ngettext().
2010-09-07 10:42:13 +03:00
Lasse Collin 58f5513182 xz: Improve a comment. 2010-09-06 10:16:24 +03:00
Lasse Collin bcb1b89834 xz: Update the comment about NetBSD in file_io.c.
Thanks to Joerg Sonnenberger.
2010-09-05 21:34:29 +03:00
Lasse Collin da014d5597 xz: Use an array instead of pointer for stdin_filename.
Thanks Joerg Sonnenberger.
2010-09-05 21:11:33 +03:00
Lasse Collin 8c7d3d1a07 xz: Hopefully ease translating the messages in list.c. 2010-09-05 12:16:17 +03:00
Lasse Collin ef840950ad xz: Fix grammar. 2010-09-04 23:14:44 +03:00
Lasse Collin c46afd6edc xz: Use lzma_lzma_preset() to initialize the options structure. 2010-09-04 23:12:20 +03:00
Lasse Collin 8fd3ac046d Don't set lc=4 with --extreme.
This should reduce the cases where --extreme makes
compression worse. On the other hand, some other
files may now benefit slightly less from --extreme.
2010-09-04 22:16:28 +03:00
Lasse Collin 474bac0c33 xz: Minor improvements to --help and --long-help. 2010-09-04 22:10:32 +03:00
Lasse Collin 2fce9312f3 xz: Make -vv show also decompressor memory usage. 2010-09-03 15:54:40 +03:00
Lasse Collin b4b1cbcb53 Tweak the compression presets -0 .. -5.
"Extreme" mode might need some further tweaking still.
Docs were not updated yet.
2010-09-03 15:13:12 +03:00
Lasse Collin 77fe5954cd liblzma: Adjust default depth calculation for HC3 and HC4.
It was 8 + nice_len / 4, now it is 4 + nice_len / 4.
This allows faster settings at lower nice_len values,
even though it seems that I won't use automatic depth
calcuation with HC3 and HC4 in the presets.
2010-09-03 12:28:41 +03:00
Lasse Collin fce69059cf xz: Make --help two lines shorter.
At least for now, the --help option doesn't list any
options that take arguments, so "Mandatory arguments to..."
can be omitted.
2010-09-03 11:11:25 +03:00
Lasse Collin a848e47ced xz: Make setting a preset override a custom filter chain.
This is more logical behavior than ignoring preset level
options once a custom filter chain has been specified.
2010-09-02 19:22:35 +03:00
Lasse Collin b3ff7ba044 xz: Always warn if adjusting dictionary size due to memlimit. 2010-09-02 19:09:57 +03:00
Lasse Collin 792331bdee Disable the memory usage limiter by default.
For several people, the limiter causes bigger problems that
it solves, so it is better to have it disabled by default.
Those who want to have a limiter by default need to enable
it via the environment variable XZ_DEFAULTS.

Support for environment variable XZ_DEFAULTS was added. It is
parsed before XZ_OPT and technically identical with it. The
intended uses differ quite a bit though; see the man page.

The memory usage limit can now be set separately for
compression and decompression using --memlimit-compress and
--memlimit-decompress. To set both at once, -M or --memlimit
can be used. --memory was retained as a legacy alias for
--memlimit for backwards compatibility.

The semantics of --info-memory were changed in backwards
incompatible way. Compatibility wasn't meaningful due to
changes in the memory usage limiter functionality.

The memory usage limiter info is no longer shown at the
bottom of xz --long -help.

The memory usage limiter support for removed completely from xzdec.

xz's man page was updated to match the above changes. Various
unrelated fixes were also made to the man page.
2010-08-07 20:45:18 +03:00
Lasse Collin 4a45dd4c39 Add missing const to a global constant in xz. 2010-08-06 20:22:16 +03:00
Lasse Collin 01aa4869cb Language fixes for man pages.
Thanks to A. Costa and Jonathan Nieder.
2010-07-28 11:44:55 +03:00
Lasse Collin c15c42abb3 Add --no-adjust. 2010-06-15 14:06:29 +03:00
Lasse Collin bc612d0e0c Clarify the description of the default memlimit in the man page.
Thanks to Denis Excoffier.
2010-06-11 21:48:32 +03:00
Lasse Collin e1b6935d60 Fix string to uint64_t conversion.
Thanks to Denis Excoffier for the bug report.
2010-06-11 21:43:28 +03:00
Lasse Collin d8b41eedce Fix compiling with -Werror. 2010-06-02 23:13:55 +03:00
Lasse Collin b5fbab6123 Silence a bogus Valgrind warning.
When using -O2 with GCC, it liked to swap two comparisons
in one "if" statement. It's otherwise fine except that
the latter part, which is seemingly never executed, got
executed (nothing wrong with that) and then triggered
warning in Valgrind about conditional jump depending on
uninitialized variable. A few people find this annoying
so do things a bit differently to avoid the warning.
2010-06-02 23:09:22 +03:00
Lasse Collin 29a7b250e6 Fix a Windows-specific FIXME in signal handling code. 2010-06-02 21:32:12 +03:00
Lasse Collin e89d987056 Adjust SA_RESTART workaround.
I want to get a bug report if something else than
DJGPP lacks SA_RESTART.
2010-06-02 17:46:58 +03:00
Lasse Collin e243145c84 xz man page updates.
- Concatenating .xz files and padding
- List mode
- Robot mode
- A few examples (but many more are needed)
2010-06-01 16:02:30 +03:00
Lasse Collin ce6dc3c0a8 Major update to xz --list. 2010-06-01 15:51:44 +03:00
Lasse Collin 905e54804a Rename message_filters_get() to message_filters_to_str(). 2010-06-01 14:13:03 +03:00
Lasse Collin 4b346ae8af Fix a comment. 2010-06-01 14:09:12 +03:00
Lasse Collin 07dc34f6da Fix lzma_block_compressed_size(). 2010-05-27 16:17:42 +03:00
Lasse Collin 44d70cb154 Take Cygwin into account in some #if lines.
This change is no-op, but good to have just in case
for the future.
2010-05-27 14:32:51 +03:00
Lasse Collin a334348dc0 Remove references to the Subblock filter in xz and tests.
Thanks to Jonathan Nieder.
2010-05-27 13:42:44 +03:00
Lasse Collin 70e5e2f6a7 Remove unused chunk_size.c.
Thanks to Jonathan Nieder for the reminder.
2010-05-27 13:35:36 +03:00
Jonathan Nieder 01a414eaf4 Use my_min() instead of MIN() in src/xz/list.c
This should have been done in
920a69a8d8.
2010-05-27 13:30:48 +03:00
Lasse Collin 920a69a8d8 Rename MIN() and MAX() to my_min() and my_max().
This should avoid some minor portability issues.
2010-05-26 10:36:46 +03:00
Lasse Collin 703d2c33c0 Better #error message. 2010-05-26 10:16:57 +03:00
Lasse Collin d8a55c48b3 Remove the Subblock filter code for now.
The spec isn't finished and the code didn't compile anymore.
It won't be included in XZ Utils 5.0.0. It's easy to get it
back once the spec is done.
2010-05-26 09:55:47 +03:00
Lasse Collin b6377fc990 Split message_filters().
message_filters_to_str() converts the filter chain to
a string. message_filters_show() replaces the original
message_filters().

uint32_to_optstr() was also added to show the dictionary
size in nicer format when possible.
2010-05-16 18:42:22 +03:00
Lasse Collin d9986db782 Omit lzma_restrict from the API headers.
It isn't really useful so omitting it makes things
shorter and slightly more readable.
2010-05-14 23:17:20 +03:00
Lasse Collin 6548e30465 Updates to tuklib_physmem and tuklib_cpucores.
Don't use #error to generate compile error, because some
compilers actually don't take it as an error. This fixes
tuklib_physmem on IRIX.

Fix incorrect error check for sysconf() return values.

Add AIX, HP-UX, and Tru64 specific code to detect the
amount RAM.

Add HP-UX specific code to detect the number of CPU cores.

Thanks a lot to Peter O'Gorman for initial patches,
testing, and debugging these fixes.
2010-05-10 19:54:15 +03:00
Lasse Collin a290cfee3e Show both elapsed time and estimated remaining time in xz -v.
The extra space for showing both has been taken from the
sizes field. If the sizes grow big, bigger units than MiB
will be used. It makes it slightly difficult to see that
progress is still happening with huge files, but it should
be OK in practice.

Thanks to Trent W. Buck for <http://bugs.debian.org/574583>
and Jonathan Nieder for suggestions how to fix it.
2010-04-12 21:55:56 +03:00
Lasse Collin f4b2b52624 Fix xzgrep to not break if filenames have spaces or quotes.
Thanks to someone who reported the bug on IRC.
2010-03-07 19:52:25 +02:00
Lasse Collin cf38da00a1 Treat all integer multiplier suffixes as base-2.
Originally both base-2 and base-10 were supported, but since
there seems to be little need for base-10 in XZ Utils, treat
everything as base-2 and also be more relaxed about the case
of the first letter of the suffix. Now xz will accept e.g.
KiB, Ki, k, K, kB, and KB, and interpret them all as 1024. The
recommended spelling of the suffixes are still KiB, MiB, and GiB.
2010-03-07 13:59:32 +02:00
Lasse Collin 00fc1211ae Consistently round up the memory usage limit in messages.
It still feels a bit wrong to round 1 byte to 1 MiB but
at least it is now done consistently so that the same
byte value is always rounded the same way to MiB.
2010-03-07 13:50:23 +02:00
Lasse Collin 2672bcc9f8 Increase the default memory usage limit on "low-memory" systems.
Previously the default limit was always 40 % of RAM. The
new limit is a little bit more complex:

  - If 40 % of RAM is at least 80 MiB, 40 % of RAM is used
    as the limit.

  - If 80 % of RAM is over 80 MiB, 80 MiB is used as the limit.

  - Otherwise 80 % of RAM is used as the limit.

This should make it possible to decompress files created with
"xz -9" on more systems. Swapping is generally more expected
on systems with less RAM, so higher default limit on them
shouldn't cause too bad surprises in terms of heavy swapping.
Instead, the higher default limit should reduce the number of
bad surprises when it used to prevent decompression of files
created with "xz -9". The DoS prevention system shouldn't be
a DoS itself.

Note that even with the new default limit, a system with 64 MiB
RAM cannot decompress files created with "xz -9" without user
overriding the limit. This should be OK, because if xz is going
to need more memory than the system has RAM, it will run very
very slowly and thus it's good that user has to override the limit
in that case.
2010-03-07 13:29:28 +02:00
Lasse Collin d0d1c51aea Fix missing initialization in lzma_strm_init().
With bad luck, lzma_code() could return LZMA_BUF_ERROR
when it shouldn't.

This has been here since the early days of liblzma.
It got triggered by the modifications made to the xz
tool in commit 18c10c30d2
but only when decompressing .lzma files. Somehow I managed
to miss testing that with Valgrind earlier.

This fixes <http://bugs.gentoo.org/show_bug.cgi?id=305591>.
Thanks to Rafał Mużyło for helping to debug it on IRC.
2010-03-06 21:17:20 +02:00
Lasse Collin eb7d51a3fa Collection of language fixes to comments and docs.
Thanks to Jonathan Nieder.
2010-02-12 13:16:15 +02:00
Lasse Collin 4785f2021a Fix jl -> jb in ASM files. 2010-02-12 12:41:20 +02:00
Lasse Collin 6b50c9429b Use __APPLE__ instead of __MACH__ in ASM files.
This allows the files to work on HURD.

Thanks to Jonathan Nieder.
2010-02-12 12:31:22 +02:00
Lasse Collin 6503fde658 Subtle change to liblzma Block handling API.
lzma_block.version has to be initialized even for
lzma_block_header_decode(). This way a future version
of liblzma won't allocate memory in a way that an old
application doesn't know how to free it.

The subtlety of this change is that all current apps
using lzma_block_header_decode() will keep working for
now, because the only possible version value is zero,
and lzma_block_header_decode() unconditionally sets the
version to zero even now. Unless fixed, these apps will
break in the future if a new version of the Block options
is ever needed.
2010-02-07 19:48:06 +02:00
Lasse Collin dd7c3841ff Fix wrong assertion.
This was added in 455e68c030.
2010-02-02 11:50:11 +02:00
Lasse Collin fef6333f52 Fix typos in comments. 2010-02-01 22:47:54 +02:00
Lasse Collin 455e68c030 Fix signal handling for --list. 2010-02-01 22:46:56 +02:00
Lasse Collin 82220a1490 Fix compression of symlinks with --force.
xz --force accepted symlinks, but didn't remove
them after successful compression. Instead, an error
message was displayed.
2010-02-01 11:44:45 +02:00
Lasse Collin 34eb5e201d Select the default integrity check type at runtime.
Previously it was set statically to CRC64 or CRC32
depending on options passed to the configure script.
2010-01-31 19:52:38 +02:00
Lasse Collin 96a4f840e3 Improve displaying of the memory usage limit. 2010-01-31 18:17:50 +02:00
Lasse Collin b3cc4d8edd Don't use uninitialized sigset_t.
If signal handlers haven't been established, then it's
useless to try to block them, especially since the sigset_t
used for blocking hasn't been initialized yet.
2010-01-31 12:53:56 +02:00
Lasse Collin 231c3c7098 Delay opening the destionation file and other fixes.
The opening of the destination file is now delayed a little.
The coder is initialized, and if decompressing, the memory
usage of the first Block compared against the memory
usage limit before the destination file is opened. This
means that if --force was used, the old "target" file won't
be deleted so easily when something goes wrong very early.
Thanks to Mark K for the bug report.

The above fix required some changes to progress message
handling. Now there is a separate function for setting and
printing the filename. It is used also in list.c.

list_file() now handles stdin correctly (gives an error).

A useless check for user_abort was removed from file_io.c.
2010-01-31 12:01:54 +02:00
Lasse Collin 0dbd0641db Add list.h to src/xz/Makefile.am.
This should have been already in
0bc9eab243.
2010-01-29 22:48:04 +02:00
Lasse Collin 5574d64e03 Silence two compiler warnings on DOS-like systems. 2010-01-27 16:42:11 +02:00
Lasse Collin b063cc34a3 Use PACKAGE_URL instead of custom PACKAGE_HOMEPAGE. 2010-01-27 13:31:03 +02:00
Lasse Collin 38b8035b5c Add a missing space to an error message.
Thanks to Robert Readman.
2010-01-26 23:37:46 +02:00
Lasse Collin e5496f9628 Use past tense in error message in io_unlink().
Added a note to translators too.

Thanks to Robert Readman.
2010-01-26 22:53:37 +02:00
Lasse Collin d9a9800597 Fix too small static buffer in util.c.
This was introduced in
0dd6d00766 two days ago.
2010-01-26 15:42:24 +02:00
Lasse Collin d0b4bbf5da Minor comment fix. 2010-01-26 14:46:43 +02:00
Lasse Collin 0bc9eab243 Add initial version of xz --list.
This is a bit rough but should be useful for basic things.
Ideas (with detailed examples) about the output format are
welcome.

The output of --robot --list is not necessarily stable yet,
although I don't currently have any plans about changing it.

The man page hasn't been updated yet.
2010-01-24 23:50:54 +02:00
Lasse Collin df254ce03b Add io_pread().
It will be used by --list.
2010-01-24 22:46:11 +02:00
Lasse Collin ef68dd4a92 Set LC_NUMERIC=C when --robot is used.
It is to ensure that floating point numbers
will always have a dot as the decimal separator.
2010-01-24 22:45:14 +02:00
Lasse Collin 0dd6d00766 Some improvements to printing sizes in xz. 2010-01-24 16:57:40 +02:00
Lasse Collin 37f31ead9d Update the xz man page to match the previous two commits. 2010-01-15 11:05:11 +02:00
Lasse Collin 3ffd5d81a4 Don't read compressed data from a terminal or write it
to a terminal even if --force is specified.

It just seems more reasonable this way.

The new behavior matches bzip2. The old one matched gzip.
2010-01-13 19:10:25 +02:00
Lasse Collin 23ac2c44c3 Don't compress or decompress special files unless writing
to stdout even if --force is used.

--force will still enable compression of symlinks, but only
in case they point to a regular file.

The new way simply seems more reasonable. It matches gzip's
behavior while the old one matched bzip2's behavior.
2010-01-13 18:12:40 +02:00
Lasse Collin 153c7740c5 Add IRIX-specific code to tuklib_physmem and tuklib_cpucores.
This is untested but it will get tested soon and, if needed,
fixed before 5.0.0.

Thanks to Stuart Shelton.
2010-01-12 16:18:14 +02:00
Lasse Collin 8ea8dc754a Fix _memconfig() functions.
This affects lzma_memusage() and lzma_memlimit_get().
2010-01-01 00:29:10 +02:00
Lasse Collin 1a7ec87c8e Revised the Index handling code.
This breaks API and ABI but most apps are not affected
since most apps don't use this part of the API. You will
get a compile error if you are using anything that got
broken.

Summary of changes:

  - Ability to store Stream Flags, which are needed
    for random-access reading in multi-Stream files.

  - Separate function to set size of Stream Padding.

  - Iterator structure makes it possible to read the same
    lzma_index from multiple threads at the same time.

  - A lot faster code to locate Blocks.

  - Removed lzma_index_equal() without adding anything
    to replace it. I don't know what it should do exactly
    with the new features and what actually needs this
    function in the first place other than test_index.c,
    which now has its own code to compare lzma_indexes.
2009-12-31 22:45:53 +02:00
Lasse Collin 097bad0003 Add missing lzma_nothrow in filter.h. 2009-12-31 21:11:05 +02:00
Lasse Collin b56cb1fc31 Remove redefinition of _(msgid) macro from lzmainfo.c. 2009-12-09 18:13:44 +02:00
Lasse Collin f7e44c6c11 Always rely on GCC's auto-import on Windows.
I understood that this is nicer, because then people
don't need to worry about the LZMA_API_STATIC macro.

Thanks to Charles Wilson and Keith Marshall.
2009-12-09 00:38:55 +02:00
Lasse Collin 7b76a3e233 Fix file_io.c on DOS-like systems.
The problem was introduced when adding sparse file
support in 465d1b0d65.

Thanks to Charles Wilson.
2009-12-07 21:46:53 +02:00
Lasse Collin 5e817a50d2 Add a note for translators to add a bug reporting address
for translation bugs.
2009-12-07 20:32:08 +02:00
Lasse Collin 6db1c35be9 Prevent xgettext from taking one regular string as a C format string.
Thanks to Marek Černocký.
2009-12-07 20:07:02 +02:00
Lasse Collin e0c2776b6f Remove duplicate code in io_open_dest().
Fix a missing _() in the error message too.
2009-11-28 17:45:22 +02:00
Lasse Collin f057a33c6f Typo fix to sysdefs.h.
Thanks to Jonathan Nieder.
2009-11-26 10:11:23 +02:00
Lasse Collin 919fbaff86 Add missing error check to coder.c.
With bad luck this could cause a segfault due to
reading (but not writing) past the end of the buffer.
2009-11-25 14:22:19 +02:00
Lasse Collin bd13b04e20 Fix bugs in lzma_index_read() and lzma_index_cat().
lzma_index_read() didn't skip over Stream Padding
if it was the first record in the Index.

lzma_index_cat() didn't combine small Indexes correctly.

The test suite was updated to check for these bugs.

These bugs didn't affect the xz command line tool or
most users of liblzma in any way.
2009-11-25 13:04:10 +02:00
Lasse Collin 1f19690914 Index decoder fixes.
The Index decoder code didn't perfectly match the API docs,
which said that *i will be set to point to the decoded Index
only after decoding has succeeded. The docs were a bit unclear
too.

Now the decoder will initially set *i to NULL. *i will be set
to point to the decoded Index once decoding has succeeded.
This simplifies applications too, since it avoids dangling
pointers.
2009-11-25 12:52:56 +02:00
Lasse Collin 465d1b0d65 Create sparse files by default when decompressing into
a regular file.

Sparse file creation can be disabled with --no-sparse.
I don't promise yet that the name of this option won't
change before 5.0.0. It's possible that the code, that
checks when it is safe to use sparse output on stdout,
is not good enough, and a more flexible command line
option is needed to configure sparse file handling.
2009-11-25 11:19:20 +02:00
Lasse Collin f1a28b96c9 Add missing consts to pointer casts. 2009-11-22 12:05:33 +02:00
Lasse Collin 0733f4c999 Make fastpos.h use tuklib_integer.h instead of bsr.h
when --enable-small has been specified.
2009-11-22 11:55:03 +02:00
Lasse Collin 7ac3985d89 Update tuklib_integer.h with bit scan functions.
Thanks to Joachim Henke for the original patch.
2009-11-22 11:52:30 +02:00
Lasse Collin d315ca4930 Add support for --info-memory and --robot to xz.
Currently --robot works only with --info-memory and
--version. --help and --long-help work too, but --robot
has no effect on them.

Thanks to Jonathan Nieder for the original patches.
2009-11-16 18:16:45 +02:00
Lasse Collin e330fb7e6b Fix wrong indentation caused by incorrect settings
in the text editor.
2009-11-15 12:54:45 +02:00
Lasse Collin 93e418562c Add lzma_physmem().
I had hoped to keep liblzma as purely a compression
library as possible (e.g. file I/O will go into
a different library), but it seems that applications
linking agaisnt liblzma need some way to determine
the memory usage limit, and knowing the amount of RAM
is one reasonable way to help making such decisions.

Thanks to Jonathan Nieder for the original patch.
2009-11-15 12:40:17 +02:00
Lasse Collin 2ddcae247c Some updates to xz man page. 2009-11-14 20:20:03 +02:00
Lasse Collin 19b2674f07 Fix description of --memory in --long-help. 2009-11-14 19:51:03 +02:00
Lasse Collin 418d64a32e Fix a design error in liblzma API.
Originally the idea was that using LZMA_FULL_FLUSH
with Stream encoder would read the filter chain
from the same array that was used to intialize the
Stream encoder. Since most apps wouldn't use
LZMA_FULL_FLUSH, most apps wouldn't need to keep
the filter chain available after initializing the
Stream encoder. However, due to my mistake, it
actually required keeping the array always available.

Since setting the new filter chain via the array
used at initialization time is not a nice way to do
it for a couple of reasons, this commit ditches it
and introduces lzma_filters_update(). This new function
replaces also the "persistent" flag used by LZMA2
(and to-be-designed Subblock filter), which was also
an ugly thing to do.

Thanks to Alexey Tourbin for reminding me about the problem
that Stream encoder used to require keeping the filter
chain allocated.
2009-11-14 18:59:19 +02:00
Lasse Collin f0bf7634b7 Fix wrong function name in the previous commit.
It was meant to be lzma_filters_copy(), not lzma_filters_dup().
2009-10-17 11:11:58 +03:00
Lasse Collin 6d118a0b9d Add lzma_filters_copy().
This will be needed internally by liblzma once I fix
a design mistake in the encoder API. This function may
be useful to applications too so it's good to export it.
2009-10-17 01:47:07 +03:00
Jonathan Nieder 78e92c1847 Escape dashes in xzmore.1
A minus sign is larger, easier to see in a printout, and more
likely to use the same glyph as ASCII hyphen-minus in a terminal
than a hyphen.  Since broken manual pagers do not find hyphens
when the user searches for a hyphen-minus, minus signs are also
easier to search for.  So use minus signs instead of hyphens to
render sample terminal output.
2009-10-16 20:39:24 +03:00
Lasse Collin 7b7fe902d9 Mention --check=none in --long-help. It was already in
the man page though.

Thanks to Jim Meyering for noticing this.
2009-10-16 20:35:39 +03:00
Lasse Collin ebfb2c5e1f Use a tuklib module for integer handling.
This replaces bswap.h and integer.h.

The tuklib module uses <byteswap.h> on GNU,
<sys/endian.h> on *BSDs and <sys/byteorder.h>
on Solaris, which may contain optimized code
like inline assembly.
2009-10-04 22:57:12 +03:00
Lasse Collin 29fd321033 Add support for --enable-assume-ram=SIZE. 2009-10-02 14:35:56 +03:00
Lasse Collin 3782b3fee4 Use unaligned access (if possible) on both endiannesses
in lz_encoder_hash.h.
2009-10-02 11:28:17 +03:00
Lasse Collin c5f68b5cc7 Make liblzma produce the same output on both endiannesses.
Seems that it is a problem in some cases if the same
version of XZ Utils produces different output on different
endiannesses, so this commit fixes that problem. The output
will still vary between different XZ Utils versions, but I
cannot avoid that for now.

This commit bloatens the code on big endian systems by 1 KiB,
which should be OK since liblzma is bloated already. ;-)
2009-10-02 11:03:26 +03:00
Lasse Collin db9119b918 Work around a bug in Interix header files.
Thanks to Markus Duft for the patch.
2009-09-27 11:48:54 +03:00
Lasse Collin b3d105e697 Fix an error in OpenVMS-specific code.
Thanks to Jouk Jansen.
2009-09-24 17:50:17 +03:00
Lasse Collin 932b2e2044 Better fixes for OpenVMS support.
Thanks to Jouk Jansen.
2009-09-22 14:03:02 +03:00
Lasse Collin 4c3630ec41 Avoid non-standard preprocessor construct.
Thanks to Jouk Jansen.
2009-09-22 13:40:19 +03:00
Lasse Collin 0deb1bb60a Make sure that TUKLIB_DOSLIKE doesn't get defined on Cygwin.
Thanks to Charles Wilson.
2009-09-21 19:50:09 +03:00
Lasse Collin e599bba421 Various changes.
Separate a few reusable components from XZ Utils specific
code. The reusable code is now in "tuklib" modules. A few
more could be separated still, e.g. bswap.h.

Fix some bugs in lzmainfo.

Fix physmem and cpucores code on OS/2. Thanks to Elbert Pol
for help.

Add OpenVMS support into physmem. Add a few #ifdefs to ease
building XZ Utils on OpenVMS. Thanks to Jouk Jansen for the
original patch.
2009-09-19 09:47:30 +03:00
Lasse Collin 49cfc8d392 Fix incorrect use of "restrict". 2009-09-15 21:07:23 +03:00
Lasse Collin 15ffd675ab Fix GCC version check for nothrow attribute. 2009-09-12 14:09:17 +03:00
Lasse Collin 4ab7b16b95 A few grammar fixes.
Thanks to Christian Weisgerber for pointing out some of these.
2009-09-12 14:07:36 +03:00
Lasse Collin 221be761f4 Use $(LN_EXEEXT) in symlinks to executables.
This fixes "make install" on operating systems using
a suffix for executables.

Cygwin is treated specially. The symlink names won't have
.exe suffix even though the executables themselves have.
Thanks to Charles Wilson.
2009-09-11 10:24:09 +03:00
Lasse Collin 18a4233a53 Fix a couple of warnings. 2009-09-11 09:25:09 +03:00
Lasse Collin 429910b2ba Add OS/2-specific code to physmem.h.
Also move DJGPP-specific code near the code meant
for other DOS-like systems.
2009-09-05 18:39:21 +03:00
Lasse Collin 60ccb80c9c Use sysctl() != -1 instead of !sysctl() to check if
the function call succeeded.

NetBSD 4.0 returns positive values on success, but
NetBSD Current and FreeBSD return zero. OpenBSD's
man page doesn't tell what sysctl() returns on
success. All these BSDs return -1 on error.

Thanks to Robert Elz and Thomas Klausner.
2009-09-05 01:20:29 +03:00
Lasse Collin 319a0fd7d7 Refactored option parsing. 2009-09-01 20:40:01 +03:00
Lasse Collin 25adaaa56e Fix options parsing bug in xz.
xz used to reject "xz --lzma2=pb=2," while
"xz --lzma2=pb=2,," worked. Now both work.
2009-09-01 20:23:30 +03:00
Lasse Collin 655457b9ad Revert 43f44160b1
and use a fix that works on all systems using
GNU assembler.

Maybe the assembler code is used e.g. on Solaris x86
but let's worry about it if this doesn't work on it.
2009-08-31 21:59:25 +03:00
Lasse Collin 94c66b3297 Use even more hackish way to support thousand separators.
Seems that in addition on Windows and DOS, also OpenBSD
lacks support for %'d style printf() format strings.
So far that is the only modern POSIX-like system I know
with this problem, but after this hack, the thousand
separator shouldn't be a problem on any system.

Maybe testing if a format string like %'d produces
reasonable output is invoking undefined behavior on some
systems, but so far all the problematic systems I've tried
just print the raw format string (e.g. %'d prints 'd).

Maybe Autoconf test would have been better, but this
hack works also for cross-compilation, and avoids
recompilation in case the system libc starts to support
the thousand separator.
2009-08-29 14:43:52 +03:00
Lasse Collin 27414daadf Fix sysctl() usage.
This fixes build on *BSDs and Darwin.

Thanks to Jukka Salmi for the patches.
Richard Koch reported the problem too.
2009-08-29 13:39:21 +03:00
Lasse Collin 43f44160b1 Fix x86 assembler on GCC 3.
Thanks to Karl Berry.
2009-08-29 13:35:23 +03:00
Lasse Collin c8c184db1c Update xz man page date. 2009-08-27 17:08:33 +03:00
Lasse Collin 04dcbfdeb9 Bumped version to 4.999.9beta. 2009-08-27 16:21:22 +03:00
Lasse Collin 2341437719 Some xz man page improvements. 2009-08-27 15:17:00 +03:00
Lasse Collin 3e2ba8b585 Updates to liblzma API headers.
Added lzma_nothrow for every function. It adds
throw() when the header is used in C++ code.

Some lzma_attrs were added or removed.

Lots of comments were improved.
2009-08-27 10:13:46 +03:00
Lasse Collin fe111a25cd Some xz man changes. 2009-08-17 22:45:50 +03:00
Lasse Collin 3ce1916c83 Fix data corruption in LZ/LZMA2 encoder.
Thanks to Jonathan Stott for the bug report.
2009-08-16 22:15:13 +03:00
Lasse Collin 8238c4b240 Link lzmainfo against shared liblzma by default. 2009-08-13 15:03:46 +03:00
Lasse Collin 5aa4678b23 Fix xz Makefile.am for the man page.
install-exec-hook -> install-data-hook
2009-08-13 12:56:47 +03:00
Lasse Collin e51b4e49e8 Add lzmainfo for backward compatibility with LZMA Utils.
lzmainfo now links against static liblzma. In contrast
to other command line tools in XZ Utils, linking lzmainfo
against static liblzma by default is dumb. This will be
fixed once I have fixed some related issues in configure.ac.
2009-08-13 12:55:45 +03:00
Lasse Collin a4165d0584 Sync some error messages from xz to xzdec.
Make xz error message translation usable outside
xz (at least in upcoming lzmainfo).
2009-08-13 12:42:36 +03:00
Lasse Collin 180bdf58ea Fix first line of xz man page. 2009-08-13 09:37:01 +03:00
Lasse Collin e1ce2291e7 Added a rough version of the xz man page. 2009-08-10 11:22:31 +03:00
Jonathan Nieder e71903fc61 “xzdiff a.xz b.xz” always fails
Attempts to compare two compressed files result in no output and
exit status 2.

Instead of going to standard output, ‘diff’ output is being
captured in the xz_status variable along with the exit status from
the decompression commands.  Later, when this variable is examined
for nonzero status codes, numerals from dates in the ‘diff’ output
make it appear as though decompression failed.

So let the ‘diff’ output leak to standard output with another file
descriptor.  (This trick is used in all similar contexts elsewhere
in xzdiff and in the analogous context in gzip’s zdiff script.)
2009-08-09 22:55:19 +03:00
Jonathan Nieder 1d314b81aa xzless: Support compressed standard input
It can be somewhat confusing that

	less < some_file.txt

works fine, whereas

	xzless < some_file.txt.xz

does not.  Since version 429, ‘less’ allows a filter specified in
the LESSOPEN environment variable to preprocess its input even if
it comes from standard input, if $LESSOPEN begins with ‘|-’.  So
set $LESSOPEN to take advantage of this feature.

Check less’s version at runtime so xzless can continue to work
with older versions.
2009-08-09 22:27:22 +03:00
Jonathan Nieder dbbd8fb870 xzdiff: add missing ;; to case statement 2009-07-30 12:23:45 +03:00
Lasse Collin 0db1befcfb Fix incorrect usage of getopt_long(), which caused
invalid memory access if XZ_OPT was defined.
2009-07-23 19:10:55 +03:00
Lasse Collin 8f8ec942d6 Avoid internal error with --format=xz --lzma1. 2009-07-20 15:43:32 +03:00
Lasse Collin ef4cf1851d Added missing author notice to xzless.in. 2009-07-19 11:09:31 +03:00
Lasse Collin 64e498c89d Added public domain notice into a few files. 2009-07-18 11:26:39 +03:00
Lasse Collin a35755c5de Allow extra commas in filter-specific options on xz command line.
This may slightly ease writing scripts that construct
filter-specific option strings dynamically.
2009-07-14 21:10:36 +03:00
Lasse Collin 98f3cac1ad Accept --lzma2=preset=6e where "e" is equivalent to --extreme
when no custom chain is in use.
2009-07-14 18:04:31 +03:00
Lasse Collin cd69a5a6c1 BCJ filters: Reject invalid start offsets with LZMA_OPTIONS_ERROR.
This is a quick and slightly dirty fix to make the code
conform to the latest file format specification. Without
this patch, it's possible to make corrupt files by
specifying start offset that is not a multiple of the
filter's alignment. Custom start offset is almost never
used, so this was only a minor bug.

The xz command line tool doesn't validate the start offset,
so one will get a bit unclear error message if trying to use
an invalid start offset.
2009-07-10 11:39:38 +03:00
Lasse Collin eed9953732 Look for full command names instead of substrings
like "un", "cat", and "lz" when determining if
xz is run as unxz, xzcat, lzma, unlzma, or lzcat.

This is to ensure that if xz is renamed (e.g. via
--program-transform-name), it doesn't so easily
work in wrong mode.
2009-07-10 11:33:21 +03:00
Lasse Collin 3bdb53792c Remove --force from xzdec.
It was ignored for compatibility with xz, but now that
--decompress --stdout --force copies unrecognized files
as is to stdout, simply ignoring --force in xzdec would
be wrong. xzdec will not support copying unrecognized
data as is to stdout, so it cannot support --force.
2009-07-08 22:50:16 +03:00
Lasse Collin 5f16ef4abf Use sed instead of $(SED) so that we don't need to
use AC_PROG_SED. We don't do anything fancy with sed,
so this should work OK. libtool 2.2 sets SED but 1.5
doesn't, so $(SED) happened to work when using libtool 2.2.
2009-07-06 10:36:04 +03:00
Lasse Collin 96e4b257e1 Major update to the xzgrep and other scripts based on
the latest versions found from gzip CVS repository.

configure will try to find a POSIX shell to be used by
the scripts. This should ease portability on systems
which have pre-POSIX /bin/sh.

xzgrep and xzdiff support .xz, .lzma, .gz, and .bz2 files.
xzmore and xzless support only .xz and .lzma files.

The name of the xz executable used in these scripts is
now correct even if --program-transform-name has been used.
2009-07-05 22:25:17 +03:00
Lasse Collin 25cc7a6e8c Use @PACKAGE_HOMEPAGE@ in liblzma.pc.in. 2009-07-05 19:26:53 +03:00
Lasse Collin 18c10c30d2 Make "xz --decompress --stdout --force" copy unrecognized
files as is to standard output.

This feature is needed to be more compatible with gzip's
behavior. This was more complicated to implement than it
sounds, because the way liblzma is able to return errors with
files of only a few bytes in size. xz now has its own file
type detection code and no longer uses lzma_auto_decoder().
2009-07-04 00:40:44 +03:00
Lasse Collin 0a289c01ac Define PACKAGE_HOMEPAGE in configure.ac and use it in
xz and xzdec.

Use also PACKAGE_NAME instead of hardcoding "XZ Utils".
2009-07-02 14:30:38 +03:00
Lasse Collin f42ee98166 Build system fixes
Don't use libtool convenience libraries to avoid recently
discovered long-standing subtle but somewhat severe bugs
in libtool (at least 1.5.22 and 2.2.6 are affected). It
was found when porting XZ Utils to Windows
<http://lists.gnu.org/archive/html/libtool/2009-06/msg00070.html>
but the problem is significant also e.g. on GNU/Linux.

Unless --disable-shared is passed to configure, static
library built from a set of convenience libraries will
contain PIC objects. That is, while libtool builds non-PIC
objects too, only PIC objects will be used from the
convenience libraries. On 32-bit x86 (tested on mobile XP2400+),
using PIC instead of non-PIC makes the decompressor 10 % slower
with the default CFLAGS.

So while xz was linked against static liblzma by default,
it got the slower PIC objects unless --disable-shared was
used. I tend develop and benchmark with --disable-shared
due to faster build time, so I hadn't noticed the problem
in benchmarks earlier.

This commit also adds support for building Windows resources
into liblzma and executables.
2009-06-30 17:09:57 +03:00
Lasse Collin 6e685aae45 Add -no-undefined to get shared liblzma on Windows. 2009-06-28 10:04:24 +03:00
Lasse Collin 73f560ee5f Make physmem() work on Cygwin 1.5 and older. 2009-06-27 22:57:15 +03:00
Lasse Collin 7ff0004fbc Moved the Windows resource files outside the windows directory
to prepare for building them with Autotools.
2009-06-27 17:28:01 +03:00
Lasse Collin 449c634674 Added missing $(EXEEXT). 2009-06-27 13:05:03 +03:00
Lasse Collin 792db79f27 Create correct symlinks even when
--program-{prefix,suffix,transform} is passed to configure.
2009-06-27 12:32:40 +03:00
Lasse Collin 0adc72feb8 Silence a compiler warning on DOS-like systems. 2009-06-27 10:02:24 +03:00
Lasse Collin b2b1f86753 Hopefully improved portability of the assembler code in
Autotools based builds on Windows.
2009-06-27 00:43:06 +03:00
Lasse Collin da0af22e4b Updated comments to match renamed files. 2009-06-26 21:00:35 +03:00
Lasse Collin 65014fd211 Rename process.[hc] to coder.[hc] and io.[hc] to file_io.[hc]
to avoid problems on systems with system headers with those
names.
2009-06-26 20:49:54 +03:00
Lasse Collin 5e1257466d Rename process_file() to coder_run(). 2009-06-26 20:43:36 +03:00
Lasse Collin cad62551c5 Ugly hack to make it possible to use the thousand separator
format character with snprintf() on POSIX systems but not
on non-POSIX systems and still keep xgettext working.
2009-06-26 20:36:45 +03:00
Lasse Collin 390a640856 Basic support for building with Cygwin and MinGW using
the Autotools based build system. It's not good yet, more
fixes will follow.
2009-06-26 15:37:53 +03:00
Lasse Collin 1c9360b7d1 Fix @variables@ to $(variables) in Makefile.am files.
Fix the ordering of libgnu.a and LTLIBINTL on the linker
command line and added missing LTLIBINTL to tests/Makefile.am.
2009-06-26 14:47:31 +03:00
Lasse Collin b317b218e2 Support HW_PHYSMEM64 2009-06-24 20:14:10 +03:00
Lasse Collin ae82dde5d9 Cast a char argument to isspace() to unsigned char. 2009-06-24 13:01:59 +03:00
Lasse Collin 8ed156ce89 Added xzdec man page. 2009-06-04 23:42:12 +03:00
Lasse Collin f6df39afaa Harmonized xzdec --memory with xz --memory and made
minor cleanups.
2009-06-04 23:26:47 +03:00
Lasse Collin 1774f27c61 Fix purporse -> purpose. Thanks to Andrew Dudman.
Released .xz spec 1.0.2 due to this fix too.
2009-06-04 22:59:55 +03:00
Lasse Collin 083c23c680 Make the raw value of the Check field available to applications
via lzma_block structure.

This changes ABI but not doesn't break API.
2009-05-26 14:48:48 +03:00
Lasse Collin b4f5c81409 Remove undocumented alternative option names --bcj, --ppc,
and --itanium.
2009-05-23 16:57:21 +03:00
Lasse Collin b1edee2cdc Add support for specifying the BCJ filter start offset
in the xz command line tool.
2009-05-23 15:12:23 +03:00
Lasse Collin dcedb6998c Added support for --quiet and --no-warn to xzdec.
Cleaned up the --help message a little.
2009-05-22 16:40:50 +03:00
Lasse Collin 5f735dae80 Use the 40 % of RAM memory usage limit in xzdec too.
Update the memory usage info text in --help to match
the text in xz --long-help.
2009-05-22 15:11:52 +03:00
Lasse Collin b60376249e Add --no-warn. 2009-05-22 14:43:00 +03:00
Lasse Collin b4f92f522d Fix a comment. 2009-05-22 14:27:40 +03:00
Lasse Collin 4dd21d23f2 Remove the --info option, which was an alias for --list. 2009-05-22 14:21:20 +03:00
Lasse Collin 8836139b63 If xz is run as lzma, unlzma, or lzcat, simply imply
--format=lzma. This means that xz emulating lzma
doesn't decompress .xz files, while before this
commit it did. The new way is slightly simpler in
code and especially in upcoming documentation.
2009-05-22 12:27:43 +03:00
Lasse Collin b0063023f8 Make the default memory usage limit 40 % of RAM for both
compressing and decompressing. This should be OK now that
xz automatically scales down the compression settings if
they would exceed the memory usage limit (earlier, the limit
for compression was increased to 90 % because low limit broke
scripts that used "xz -9" on systems with low RAM).

Support spcifying the memory usage limit as a percentage
of RAM (e.g. --memory=50%).

Support --threads=0 to reset the thread limit to the default
value (number of available CPU cores). Use UINT32_MAX instead
of SIZE_MAX as the maximum in args.c. hardware.c was already
expecting uint32_t value.

Cleaned up the output of --help and --long-help.
2009-05-22 11:29:50 +03:00
Lasse Collin 071b825b23 Support special value "max" where xz and xzdec accept an integer.
Don't round the memory usage limit in xzdec --help to avoid
an integer overflow and to not give wrong impression that
the limit is high enough when it may not actually be.
2009-05-21 17:22:01 +03:00
ABCD 03ca67fd37 Install lzdiff, lzgrep, and lzmore as symlinks
This adds lzdiff, lzgrep, and lzmore to the list of symlinks to install.
It also installs symlinks for the manual pages and removes the new
symlinks on uninstall.
2009-05-21 16:25:36 +03:00
Lasse Collin a6f43e6412 Use a GCC-specific #pragma instead of GCC-specific
-Wno-uninitialized to silence a bogus warning.
2009-05-02 16:16:28 +03:00
Lasse Collin 21c6b94373 Fixed a crash in liblzma.
liblzma tries to avoid useless free()/malloc() pairs in
initialization when multiple files are handled using the
same lzma_stream. This didn't work with filter chains
due to comparison of wrong pointers in lzma_next_coder_init(),
making liblzma think that no memory reallocation is needed
even when it actually is.

Easy way to trigger this bug is to decompress two files with
a single xz command. The first file should have e.g. x86+LZMA2
as the filter chain, and the second file just LZMA2.
2009-04-28 23:08:32 +03:00
Lasse Collin e518d167aa Fix uint32_t -> size_t in ARM and ARM-Thumb filters.
On 64-bit system it would have gone into infinite
loop if a single input buffer was over 4 GiB (unlikely).
2009-04-15 14:13:38 +03:00
Lasse Collin 2f0bc9cd40 Quick & dirty update to support xz in diff/grep/more scripts. 2009-04-13 14:49:48 +03:00
Lasse Collin 02ddf09bc3 Put the interesting parts of XZ Utils into the public domain.
Some minor documentation cleanups were made at the same time.
2009-04-13 11:27:40 +03:00
Lasse Collin e79c42d854 Fix off-by-one in LZ decoder.
Fortunately, this bug had no security risk other than accepting
some corrupt files as valid.
2009-04-10 11:17:02 +03:00
Lasse Collin 390e69887f Fix wrong macro names in lc_cpucores.m4 and cpucores.h.
Thanks to Bert Wesarg.
2009-03-18 16:51:41 +02:00
Lasse Collin fd6a380f4e Add a rough explanation of --extreme to output of --help. 2009-02-22 19:07:54 +02:00
Lasse Collin 68bf7ac298 Fixes to progress message handling in xz:
- Don't use Windows-specific code on Windows. The old code
    required at least Windows 2000. Now it should work on
    Windows 98 and later, and maybe on Windows 95 too.

  - Use less precision when showing estimated remaining time.

  - Fix some small design issues.
2009-02-22 18:52:49 +02:00
Lasse Collin 47c2e21f82 Added files missing from the previous commit. 2009-02-18 13:00:10 +02:00
Lasse Collin 489a3dbaa0 Added lzma_easy_buffer_encode(). Splitted easy.c into small
pieces to avoid unneeded dependencies making statically
linked applications bigger than needed.
2009-02-17 10:43:00 +02:00
Lasse Collin 7494816ab0 Make physmem.h work on old Windows versions.
Thanks to Hongbo Ni for the original patch.
2009-02-15 15:48:45 +02:00
Lasse Collin 11ae4ae35f Fix microsecond vs. nanosecond confusion in my_time(). 2009-02-14 20:44:52 +02:00
Lasse Collin 3084d662d2 Cleanups to the code that detects the amount of RAM and
the number of CPU cores. Added support for using sysinfo()
on Linux systems whose libc lacks appropriate sysconf()
support (at least dietlibc). The Autoconf macros were
split into separate files, and CPU core count detection
was moved from hardware.c to cpucores.h. The core count
isn't used for anything real for now, so a problematic
part in process.c was commented out.
2009-02-14 00:45:29 +02:00
Lasse Collin fdbc0cfa71 Changed how the version number is specified in various places.
Now configure.ac will get the version number directly from
src/liblzma/api/lzma/version.h. The intent is to reduce the
number of places where the version number is duplicated. In
future, support for displaying Git commit ID may be added too.
2009-02-13 18:00:03 +02:00
Lasse Collin 1d924e584b Fix handling of integrity check type in the xz command line tool. 2009-02-13 17:30:30 +02:00
Lasse Collin 96c46df7de Improve support for DOS-like systems.
Here DOS-like means DOS, Windows, and OS/2.
2009-02-13 17:29:02 +02:00
Lasse Collin a3bbbe05d3 Let the user specify custom CFLAGS on the make command
line. Previously custom CFLAGS worked only when they were
passed to configure.
2009-02-09 14:54:31 +02:00
Lasse Collin 53f7598998 Fix aliasing issue in physmem.h. 2009-02-08 21:35:11 +02:00
Lasse Collin 0e27028d74 Add a separate internal function to initialize the CRC32
table, which is used also by LZ encoder. This was needed
because calling lzma_crc32() and ignoring the result is
a no-op due to lzma_attr_pure.
2009-02-08 18:24:50 +02:00
Lasse Collin ae1ad9af54 Make "xz --force" to write to terminal as the error
message suggests.
2009-02-08 18:17:05 +02:00
Lasse Collin 79e25eded4 Support both slash and backslash as path component
separator on Windows when parsing argv[0].
2009-02-08 10:37:50 +02:00
Lasse Collin 880c330938 Make it easy to choose if command line tools should be
linked statically or dynamically against liblzma. The
default is still to use static liblzma, but it can now
be changed by passing --enable-dynamic to configure.
Thanks to Mike Frysinger for the original patch.

Fixed a few minor bugs in configure.ac.
2009-02-07 21:17:07 +02:00
Lasse Collin bd7ca1dad5 Assume 32 MiB of RAM on unsupported operating systems like
the comment in hardware.c already said.
2009-02-07 17:07:52 +02:00
Lasse Collin bfd91198e4 Support LZMA_API_STATIC in assembler files to
avoid __declspec(dllexport) equivalent.
2009-02-07 15:55:47 +02:00
Lasse Collin 3306cf3883 Introduced LZMA_API_STATIC macro, which the applications
need to #define when linking against static liblzma on
platforms like Windows. Most developers don't need to
care about LZMA_API_STATIC at all.
2009-02-07 11:11:50 +02:00
Lasse Collin 75905a9afc Various code cleanups the the xz command line tool.
It now builds with MinGW.
2009-02-05 09:12:57 +02:00
Lasse Collin d0c0b9e94e Another utime() fix. 2009-02-03 12:15:17 +02:00
Lasse Collin ccf92a29e8 Fix wrong filename argument for utime() and utimes().
This doesn't affect most systems, since most systems
have better functions available.
2009-02-03 10:41:11 +02:00
Lasse Collin 99c1c2abfa Updated the x86 assembler code:
- Use call/ret pair to get instruction pointer for PIC.
  - Use PIC only if PIC or __PIC__ is #defined.
  - The code should work on MinGW and Darwin in addition
    to GNU/Linux and Solaris.
2009-02-02 21:19:01 +02:00
Lasse Collin 22a0c6dd94 Modify LZMA_API macro so that it works on Windows with
other compilers than MinGW. This may hurt readability
of the API headers slightly, but I don't know any
better way to do this.
2009-02-02 20:14:03 +02:00
Lasse Collin 8dd7b6052e Fix a bug in lzma_block_buffer_decode(), although this
function should be rewritten anyway.
2009-02-01 22:40:35 +02:00
Lasse Collin 55fd41431e Added initial version of raw buffer-to-buffer coding
functions, and cleaned up filter.h API header a little.
May be very buggy, not tested yet.
2009-02-01 22:39:07 +02:00
Lasse Collin 3e54ecee5c Fix missing newlines in xzdec.c. 2009-02-01 00:11:20 +02:00
Lasse Collin d64ca34f1b Use __cdecl also for function pointers in liblzma API when
on Windows.
2009-02-01 00:10:07 +02:00
Lasse Collin 6a2eb54092 Add LZMA_API to liblzma API headers. It's useful at least
on Windows. sysdefs.h no longer #includes lzma.h, so lzma.h
has to be #included separately where needed.
2009-01-31 11:01:48 +02:00
Lasse Collin d9993fcb4d Use _WIN32 instead of WIN32 in xzdec.c to test if compiling on Windows. 2009-01-31 10:13:09 +02:00
Lasse Collin 2dbdc5befb Fix two lines in lzma.h on which the # wasn't at the
beginning of the line.
2009-01-31 10:02:52 +02:00
Lasse Collin 4ab7601091 Add support for using liblzma headers in MSVC, which has no
stdint.h or inttypes.h.
2009-01-31 09:55:05 +02:00
Lasse Collin b2172cf823 Fix # -> ## in a macro in lzma.h. 2009-01-31 08:49:54 +02:00
Lasse Collin f54bcf6f80 Remove dangling crc64_init.c. 2009-01-30 00:29:58 +02:00
Lasse Collin 3241317093 Fix uninitialized variables in alone_decoder.c. This bug was
triggered by the previous commit, since these variables were
not used by anything before support for a preset dictionary.
2009-01-28 08:43:26 +02:00
Lasse Collin f76e39cf93 Added initial support for preset dictionary for raw LZMA1
and LZMA2. It is not supported by the .xz format or the xz
command line tool yet.
2009-01-27 18:36:05 +02:00
Lasse Collin 449b8c832b Regenerate the CRC tables without trailing blanks. 2009-01-26 20:09:17 +02:00
Jim Meyering 850f740042 remove trailing blanks from all but .xz files 2009-01-26 20:01:51 +02:00
Lasse Collin 667481f1aa Add lzma_block_buffer_decode(). 2009-01-26 14:34:10 +02:00
Lasse Collin 5fb34d8324 Add more sanity checks to lzma_stream_buffer_decode(). 2009-01-26 14:33:28 +02:00
Lasse Collin c129748675 Avoid hardcoded constant in easy.c. 2009-01-26 14:33:13 +02:00
Lasse Collin 1859d22d75 Tiny bit better sanity check in block_util.c 2009-01-26 13:06:49 +02:00
Lasse Collin 2c5fe958e4 Fix a dumb bug in Block decoder, which made it return
LZMA_DATA_ERROR with valid data. The bug was added in
e114502b2b.
2009-01-25 01:35:56 +02:00
Lasse Collin c81f13ff29 Added lzma_stream_buffer_decode() and made minor cleanups. 2009-01-23 22:27:50 +02:00
Lasse Collin 0b3318661c Fix a comment. 2009-01-22 12:53:33 +02:00
Lasse Collin 9ec80355a7 Add some single-call buffer-to-buffer coding functions. 2009-01-20 16:37:27 +02:00
Lasse Collin d8b58d0993 Block encoder cleanups 2009-01-20 13:45:41 +02:00
Lasse Collin 0c09810cb3 Use LZMA_PROG_ERROR in lzma_code() as documented in base.h. 2009-01-20 10:35:15 +02:00
Lasse Collin 2f1a8e8eb8 Fix handling of non-fatal errors in lzma_code(). 2009-01-19 22:53:18 +02:00
Lasse Collin 4810b6bc25 Move some LZMA2 constants to lzma2_encoder.h so that they
can be used outside lzma2_encoder.c.
2009-01-19 14:00:33 +02:00
Lasse Collin 00be5d2e09 Remove dead code. 2009-01-19 13:52:36 +02:00
Lasse Collin 128586213f Beta was supposed to be API stable but I had forgot to rename
lzma_memlimit_encoder and lzma_memlimit_decoder to
lzma_raw_encoder_memlimit and lzma_raw_decoder_memlimit. :-(
Now it is fixed. Hopefully it doesn't cause too much trouble
to those who already thought API is stable.
2009-01-17 14:24:25 +02:00
Lasse Collin 8286a60b8f Use pthread_sigmask() instead of sigprocmask() when pthreads
are enabled.
2009-01-07 18:41:15 +02:00
Lasse Collin 4fd43cb3a9 Bumped version to 4.999.8beta right after the release
of 4.999.7beta.
2008-12-31 20:01:00 +02:00
Lasse Collin d1d17a40d3 Prepare for 4.999.7beta release. 2008-12-31 17:41:46 +02:00
Lasse Collin 88d3e6b0b1 Cleaned up some comments in the API headers. 2008-12-31 17:15:03 +02:00
Lasse Collin 322ecf93c9 Renamed lzma_options_simple to lzma_options_bcj in the API.
The internal implementation is still using the name "simple".
It may need some cleanups, so I look at it later.
2008-12-31 16:29:39 +02:00
Lasse Collin 28e75f7086 Updated src/liblzma/Makefile.am to use liblzma.pc.in, which
should have been in the previous commit.
2008-12-31 00:48:23 +02:00
Lasse Collin 7ed9d943b3 Remove lzma_init() and other init functions from liblzma API.
Half of developers were already forgetting to use these
functions, which could have caused total breakage in some future
liblzma version or even now if --enable-small was used. Now
liblzma uses pthread_once() to do the initializations unless
it has been built with --disable-threads which make these
initializations thread-unsafe.

When --enable-small isn't used, liblzma currently gets needlessly
linked against libpthread (on systems that have it). While it is
stupid for now, liblzma will need threads in future anyway, so
this stupidity will be temporary only.

When --enable-small is used, different code CRC32 and CRC64 is
now used than without --enable-small. This made the resulting
binary slightly smaller, but the main reason was to clean it up
and to handle the lack of lzma_init_check().

The pkg-config file lzma.pc was renamed to liblzma.pc. I'm not
sure if it works correctly and portably for static linking
(Libs.private includes -pthread or other operating system
specific flags). Hopefully someone complains if it is bad.

lzma_rc_prices[] is now included as a precomputed array even
with --enable-small. It's just 128 bytes now that it uses uint8_t
instead of uint32_t. Smaller array seemed to be at least as fast
as the more bloated uint32_t array on x86; hopefully it's not bad
on other architectures.
2008-12-31 00:30:49 +02:00
Lasse Collin 050eb14d29 Revert a change made in 3b34851de1
that was related to LZMA_MODE_FAST. The original code is slightly
faster although it compresses slightly worse. But since it is fast
mode, it is better to select the faster version.
2008-12-27 19:32:20 +02:00
Lasse Collin 4820f10d0f Some xz command line tool improvements. 2008-12-27 19:30:19 +02:00
Lasse Collin e33194e79d Bunch of liblzma tweaks, including some API changes.
The API and ABI should now be very close to stable,
although the code behind it isn't yet.
2008-12-27 19:27:49 +02:00
Lasse Collin 4d00652e75 Updated Makefile.am that was missing from the previous commit. 2008-12-18 13:42:52 +02:00
Lasse Collin 634636fa56 Remove the alignment functions for now. Maybe they will
be added back in some form later, but the current version
wasn't modular, so it would need fixing anyway.
2008-12-17 21:49:53 +02:00
Lasse Collin 4fed98417d xz message handling improvements 2008-12-17 20:11:23 +02:00
Lasse Collin 653e457e37 Fix a dumb bug in .lzma decoder which was introduced in
the previous commit. (Probably the previous commit has
other bugs too, it wasn't tested.)
2008-12-15 23:26:43 +02:00
Lasse Collin 671a5adf1e Bunch of liblzma API cleanups and fixes. 2008-12-15 19:39:13 +02:00
Lasse Collin 17781c2c20 The LZMA2 decoder fix introduced a bug to LZ decoder,
which made LZ decoder return too early after dictionary
reset. This fixes it.
2008-12-15 14:26:52 +02:00
Lasse Collin ff7fb2c605 Fix data corruption in LZMA2 decoder. 2008-12-15 10:01:59 +02:00
Lasse Collin 8582d392ba Remove obsolete comment. 2008-12-10 01:31:00 +02:00
Lasse Collin b1ae6dd731 Use "decompression" consistently in --long-help. 2008-12-10 01:27:15 +02:00
Lasse Collin 1ea9e7f15a Added preset=NUM to --lzma1 and --lzma2. This makes it easy
to take a preset as a template and modify it a little.
2008-12-10 01:23:58 +02:00
Lasse Collin 6efa2d80d4 Make the memusage functions of LZMA1 and LZMA2 encoders
to validate the filter options. Add missing validation
to LZMA2 encoder when options are changed in the middle
of encoding.
2008-12-09 17:41:49 +02:00
Lasse Collin ef7890d564 In command line tool, take advantage of memusage calculation's
ability to also validate the filter chain and options (not
implemented yet for all filters).
2008-12-01 23:04:12 +02:00
Lasse Collin ccd57afa09 Validate the filter chain before checking filter-specific
memory usage.
2008-12-01 22:59:28 +02:00
Lasse Collin c596fda40b Make the memusage functions of LZMA1 and LZMA2 decoders
to validate the filter options.
2008-12-01 22:58:22 +02:00
Lasse Collin c58f469be5 Added the changes for Delta filter that should have been
part of 656ec87882.
2008-12-01 22:55:18 +02:00
Lasse Collin cd70801520 LZMA2 decoder cleanups. Make it require new LZMA properties
also in the first LZMA chunk after a dictionary reset in
uncompressed chunk.
2008-12-01 22:50:28 +02:00
Lasse Collin 656ec87882 Added lzma_delta_coder_memusage() which also validates
the options.
2008-12-01 16:30:11 +02:00
Lasse Collin c7007ddf06 Tested using COLUMNS environment variable to avoid broken
progress indicator but since COLUMNS isn't usually available,
the code was left commented out.
2008-11-28 12:00:48 +02:00
Lasse Collin ae65dcfde2 Cleanups to message.c. 2008-11-27 19:28:59 +02:00
Lasse Collin a8368b75cd Remove the nowadays unneeded memory limitting malloc() wrapper. 2008-11-25 02:37:47 +02:00
Lasse Collin 69472ee5f0 VLI encoder and decoder cleanups. Made encoder return
LZMA_PROG_ERROR in single-call mode if there's no output
space.
2008-11-23 15:09:03 +02:00
Lasse Collin 4249c8c15a Typo fix 2008-11-22 17:44:33 +02:00
Lasse Collin 6d1d6f4598 Support NetBSD's errno for O_NOFOLLOW. 2008-11-20 22:59:10 +02:00
Lasse Collin f901a290ee Build xzdec and lzmadec from xzdec.c. xzdec supports only .xz
files and lzmadec only .lzma files.
2008-11-20 18:05:52 +02:00
Lasse Collin 86a0ed8f01 Minor cleanups to xzdec. 2008-11-20 11:01:29 +02:00
Lasse Collin 1880a3927b Renamed lzma to xz and lzmadec to xzdec. We create symlinks
lzma, unlzma, and lzcat in "make install" for backwards
compatibility with LZMA Utils 4.32.x; I'm not sure if this
should be the default though.
2008-11-19 23:52:24 +02:00
Lasse Collin e114502b2b Oh well, big messy commit again. Some highlights:
- Updated to the latest, probably final file format version.
  - Command line tool reworked to not use threads anymore.
    Threading will probably go into liblzma anyway.
  - Memory usage limit is now about 30 % for uncompression
    and about 90 % for compression.
  - Progress indicator with --verbose
  - Simplified --help and full --long-help
  - Upgraded to the last LGPLv2.1+ getopt_long from gnulib.
  - Some bug fixes
2008-11-19 20:46:52 +02:00
Lasse Collin 0f295bf7a3 Fixed some help messages. 2008-10-07 16:42:18 +03:00
Lasse Collin 1e8e4fd1f3 Made the preset numbering more logical in liblzma API. 2008-10-07 09:40:31 +03:00
Lasse Collin fcfb86c777 Fixed suffix handling with --format=raw. 2008-10-03 07:06:48 +03:00
Lasse Collin bd137524f2 Initial changes to change the suffix of the new format to .xz.
This also fixes a bug related to --suffix option. Some issues
with suffixes with --format=raw were not fixed.
2008-10-02 22:51:46 +03:00
Lasse Collin 8e60c889a2 Fixed Stream decoder to actually use the first_stream variable. 2008-09-30 13:57:44 +03:00
Lasse Collin a6639022fd Fixed uninitialized variable in Stream decoder. 2008-09-30 13:34:07 +03:00
Lasse Collin ea560b0ea8 Fix conflicting Subblock helper filter's ID. 2008-09-27 23:49:24 +03:00
Lasse Collin ad97483b6e Changed magic bytes to match the updated spec. Filename
suffix wasn't changed yet.
2008-09-27 23:37:13 +03:00
Lasse Collin 1dcecfb09b Some API changes, bug fixes, cleanups etc. 2008-09-27 19:09:21 +03:00
Lasse Collin f147666a5c Miscellaneous LZ and LZMA encoder cleanups 2008-09-17 22:11:39 +03:00
Lasse Collin 13d68b0698 LZ decoder cleanup 2008-09-13 13:54:00 +03:00
Lasse Collin 13a74b78e3 Renamed constants:
- LZMA_VLI_VALUE_MAX -> LZMA_VLI_MAX
  - LZMA_VLI_VALUE_UNKNOWN -> LZMA_VLI_UNKNOWN
  - LZMA_HEADER_ERRRO -> LZMA_OPTIONS_ERROR
2008-09-13 12:10:43 +03:00
Lasse Collin 320601b2c7 Improved the Stream Flags handling API. 2008-09-12 22:41:40 +03:00
Lasse Collin 16e8b98f26 Remove a check from Block encoder that should have already
been removed in 2ba01bfa75.
2008-09-11 23:09:24 +03:00
Lasse Collin 5a710c3805 Remove bogus #includes. 2008-09-11 20:02:38 +03:00
Lasse Collin 962f2231d4 Fix a compiler error on big endian systems that don't
support unaligned memory access.
2008-09-11 10:48:12 +03:00
Lasse Collin fa3ab0df8a Silence a compiler warning. 2008-09-11 10:46:14 +03:00
Lasse Collin 9373e81e18 Bumped version to 4.999.6alpha. 2008-09-10 19:16:32 +03:00
Lasse Collin cb072b7c84 Check for LZMA_FILTER_RESERVED_START in filter_flags_encoder.c.
Use LZMA_PROG_ERROR instead of LZMA_HEADER_ERROR if the Filter ID
is in the reserved range. This allows Block Header encoder to
detect unallowed Filter IDs, which is good for Stream encoder.
2008-09-10 17:02:00 +03:00
Lasse Collin 123ab0acec Filter handling cleanups 2008-09-10 16:44:32 +03:00
Lasse Collin 9cfcd0c4f2 Comments 2008-09-10 00:33:00 +03:00
Lasse Collin 2ba01bfa75 Cleaned up Block encoder and moved the no longer shared
code from block_private.h to block_decoder.c. Now the Block
encoder doesn't need compressed_size and uncompressed_size
from lzma_block structure to be initialized.
2008-09-10 00:27:02 +03:00
Lasse Collin 07efcb5a6b Changed Filter ID of LZMA to 0x20. 2008-09-07 10:23:13 +03:00
Lasse Collin 32fe5fa541 Comments 2008-09-06 23:42:50 +03:00
Lasse Collin 0a31ed9d5e Some API cleanups 2008-09-06 15:14:30 +03:00
Lasse Collin da98df5440 Added support for raw encoding and decoding to the command
line tool, and made various cleanups. --lzma was renamed to
--lzma1 to prevent people from accidentally using LZMA when
they want LZMA2.
2008-09-04 11:53:06 +03:00
Lasse Collin 2496aee8a7 Don't allow LZMA_SYNC_FLUSH with decoders anymore. There's
simply nothing that would use it. Allow LZMA_FINISH to the
decoders, which will usually ignore it (auto decoder and
Stream decoder being exceptions).
2008-09-04 10:39:15 +03:00
Lasse Collin 9c75b089b4 Command line tool fixes 2008-09-02 19:33:32 +03:00
Lasse Collin bab0590504 Auto decoder cleanup 2008-09-02 19:31:42 +03:00
Lasse Collin 689602336d Updated auto decoder to handle LZMA_CONCATENATED when decoding
LZMA_Alone files. Decoding of concatenated LZMA_Alone files is
intentionally not supported, so it is better to put this in
auto decoder than LZMA_Alone decoder.
2008-09-02 19:12:12 +03:00
Lasse Collin 80c4158f19 Stream decoder cleanups 2008-09-02 14:56:52 +03:00
Lasse Collin fc68165745 Some fixes to LZ encoder. 2008-09-02 11:45:39 +03:00
Lasse Collin ede675f9ac Fix wrong pointer calculation in LZMA encoder. 2008-08-31 11:47:01 +03:00
Lasse Collin 3b34851de1 Sort of garbage collection commit. :-| Many things are still
broken. API has changed a lot and it will still change a
little more here and there. The command line tool doesn't
have all the required changes to reflect the API changes, so
it's easy to get "internal error" or trigger assertions.
2008-08-28 22:53:15 +03:00
Lasse Collin eaafc4367c Remove some redundant code from LZMA encoder. 2008-06-20 16:19:54 +03:00
Lasse Collin 0809c46534 Add limit of lc + lp <= 4. Now we can allocate the
literal coder as part of the main LZMA encoder or
decoder structure.

Make the LZMA decoder to rely on the current internal API
to free the allocated memory in case an error occurs.
2008-06-19 16:35:08 +03:00
Lasse Collin d25ab1b961 Comments 2008-06-18 21:45:19 +03:00
Lasse Collin 7d17818cec Update the code to mostly match the new simpler file format
specification. Simplify things by removing most of the
support for known uncompressed size in most places.
There are some miscellaneous changes here and there too.

The API of liblzma has got many changes and still some
more will be done soon. While most of the code has been
updated, some things are not fixed (the command line tool
will choke with invalid filter chain, if nothing else).

Subblock filter is somewhat broken for now. It will be
updated once the encoded format of the Subblock filter
has been decided.
2008-06-18 18:02:10 +03:00
Lasse Collin 803194ddd2 Fix uninitialized variable in LZMA encoder. This was
introduced in 369f72fd65.
2008-06-11 21:42:47 +03:00
Lasse Collin 0ea98e52ba Improve command line integer parsing a little in lzma and
lzmadec to make them accept also KiB in addition Ki etc.
Fix also memory usage information in lzmadec --help.
2008-06-11 15:08:44 +03:00
Lasse Collin 436fa5fae9 s/decompressed/compressed/ in the command line tool's
error message.
2008-06-10 20:36:12 +03:00
Lasse Collin 369f72fd65 Fix a buffer overflow in the LZMA encoder. It was due to my
misunderstanding of the code. There's no tiny fix for this
problem, so I also cleaned up the code in general.

This reduces the speed of the encoder 2-5 % in the fastest
compression mode ("lzma -1"). High compression modes should
have no noticeable performance difference.

This commit breaks things (especially LZMA_SYNC_FLUSH) but I
will fix them once the new format and LZMA2 has been roughly
implemented. Plain LZMA won't support LZMA_SYNC_FLUSH at all
and won't be supported in the new .lzma format. This may
change still but this is what it looks like now.

Support for known uncompressed size (that is, LZMA or LZMA2
without EOPM) is likely to go away. This means there will
be API changes.
2008-06-01 12:48:17 +03:00
Lasse Collin ed6664146f Remove support for pre-C89 libc versions that lack memcpy,
memmove, and memset.
2008-05-11 14:24:42 +03:00
Lasse Collin 11de5d5267 Bunch of grammar fixes from meyering. 2008-05-06 15:15:07 +03:00
Lasse Collin dc192b6343 Typo fix 2008-05-06 13:41:05 +03:00
Lasse Collin 944b62b932 Don't print an error message on broken pipe unless --verbose
is used.
2008-05-04 22:29:27 +03:00
Lasse Collin 8e074349e4 Fix a crash with --format=alone if other filters than LZMA
are specified on the command line.
2008-04-30 22:16:17 +03:00
Lasse Collin 3be21fb12f Fixed wrong spelling "limitter" to "limiter". This affects
liblzma's API.
2008-04-28 17:06:34 +03:00
Lasse Collin beeb810608 Prevent LZ encoder from hanging with known uncompressed
size. The "fix" breaks LZMA_SYNC_FLUSH at end of stream
with known uncompressed size, but since it currently seems
likely that support for encoding with known uncompressed
size will go away anyway, I'm not fixing this problem now.
2008-04-25 15:39:50 +03:00
Lasse Collin c324325f9f Removed src/liblzma/common/sysdefs.h symlink, which was
annoying, because "make dist" put two copies of sysdefs.h
into the tarball instead of the symlink.
2008-04-25 13:58:56 +03:00
Lasse Collin 8f804c29aa Bumped version number to 4.999.3alpha. It will become 5.0.0
once we have a stable release (won't be very soon). The
version number is no longer related to version of LZMA SDK.

Made some small Automake-related changes to toplevel
Makefile.am and configure.ac.
2008-04-25 13:32:35 +03:00
Lasse Collin c99037ea10 Fix a memory leak by calling free(extra->data) in
lzma_extra_free().
2008-04-24 20:25:39 +03:00
Lasse Collin 22ba3b0b50 Make unlzma and lzcat symlinks. 2008-04-24 20:23:05 +03:00
Lasse Collin 17c36422d4 Fixed a bug in command line option parsing. 2008-04-24 20:20:27 +03:00
Lasse Collin 283f939974 Added two assert()s. 2008-04-24 20:19:20 +03:00
Lasse Collin eb348a60b6 Switch to uint16_t as the type of range coder probabilities. 2008-04-24 19:22:53 +03:00
Lasse Collin 6c5306e312 Fix wrong return type (uint32_t -> bool). 2008-04-24 18:39:57 +03:00
Lasse Collin 712cfe3ebf Fix data corruption in LZ encoder with LZMA_SYNC_FLUSH. 2008-04-24 18:38:00 +03:00
Lasse Collin bc04486e36 Fix fastpos problem in Makefile.am when built with --enable-small. 2008-04-24 17:33:01 +03:00
Lasse Collin 7ab493924e Use 64-bit integer as range encoder's cache size. This fixes a
theoretical data corruption, which should be very hard to trigger
even intentionally.
2008-04-24 17:30:51 +03:00
Lasse Collin 641998c3e1 Replaced the range decoder optimization that used arithmetic
right shift with as fast version that doesn't need
arithmetic right shift. Removed the related check from
configure.ac.
2008-03-24 16:38:40 +02:00
Lasse Collin ad999efd27 Take advantage of arithmetic right shift in range decoder. 2008-03-22 14:39:34 +02:00
Lasse Collin 7521bbdc83 Update a comment to use the variable name rep_len_decoder.
(And BTW, the previous commit actually did change the
program logic slightly.)
2008-03-22 01:26:36 +02:00
Lasse Collin 63b74d000e Demystified the "state" variable in LZMA code. Use the
word literal instead of char for better consistency.
There are still some names with _char instead of _literal
in lzma_optimum, these may be changed later.

Renamed length coder variables.

This commit doesn't change the program logic.
2008-03-22 00:57:33 +02:00
Lasse Collin e6eb0a2675 Fix data corruption in LZMA encoder. Note that this bug was
specific to liblzma and was *not* present in LZMA SDK.
2008-03-14 23:16:11 +02:00
Lasse Collin 7d516f5129 Fix a comment API header. 2008-03-14 21:32:37 +02:00
Lasse Collin 748d6e4274 Make lzma_stream.next_in const. Let's see if anyone complains. 2008-03-12 23:14:50 +02:00
Lasse Collin bfde3b24a5 Apply a minor speed optimization to LZMA decoder. 2008-03-11 15:35:34 +02:00
Lasse Collin f310c50286 Initialize the last byte of the dictionary to zero so that
lz_get_byte(lz, 0) returns zero. This was broken by
1a3b218598.
2008-03-11 15:17:16 +02:00
Lasse Collin 5ead36cf7f Really fix the price count initialization. 2008-03-10 15:57:55 +02:00
Lasse Collin 0541c5ea63 Initialize align_price_count and match_price_count in
lzma_encoder_init.c. While we don't call
fill_distances_prices() and fill_align_prices() in
lzma_lzma_encoder_init(), we still need to initialize
these two variables so that the fill functions get
called in lzma_encoder_getoptimum.c in the beginning
of a stream.
2008-03-10 13:46:48 +02:00
Lasse Collin 596fa1fac7 Always initialize lz->temp_size in lz_decoder.c. temp_size did
get initialized as a side-effect after allocating a new decoder,
but not when the decoder was reused.
2008-03-10 13:44:29 +02:00
Lasse Collin 45e43e1695 Don't fill allocated memory with 0xFD when debugging is
enabled. It hides errors from Valgrind.
2008-03-10 13:41:25 +02:00
Lasse Collin c0e19e0662 Remove two redundant validity checks from the LZMA decoder.
These are already checked elsewhere, so omitting these
gives (very) tiny speed up.
2008-02-28 10:24:31 +02:00
Lasse Collin 1a3b218598 Don't memzero() the history buffer when initializing LZ
decoder. There's no danger of information leak here, so
it isn't required. Doing memzero() takes a lot of time
with large dictionaries, which could make it easier to
construct DoS attack to consume too much CPU time.
2008-02-02 14:51:06 +02:00
Lasse Collin 7e796e312b Do uncompressed size validation in raw encoder. This way
it gets done for not only raw encoder, but also Block
and LZMA_Alone encoders.
2008-02-01 08:39:26 +02:00
Lasse Collin 7dd48578a3 Avoid unneeded function call in raw_common.c. 2008-02-01 08:32:05 +02:00
Lasse Collin e9f6e9c075 Added note.GNU-stack to x86 assembler files. It is needed
when using non-executable stack.
2008-01-26 21:40:23 +02:00
Lasse Collin 4c7ad179c7 Added api/lzma/easy.h. I had forgot to add this to the
git repo. Thanks to Stephan Kulow.
2008-01-26 19:12:50 +02:00
Lasse Collin f9842f7127 Return LZMA_HEADER_ERROR if LZMA_SYNC_FLUSH is used with any
of the so called simple filters. If there is demand, limited
support for LZMA_SYNC_FLUSH may be added in future.

After this commit, using LZMA_SYNC_FLUSH shouldn't cause
undefined behavior in any situation.
2008-01-26 00:25:34 +02:00
Lasse Collin 4441e00418 Combine lzma_options_block validation needed by both Block
encoder and decoder, and put the shared things to
block_private.h. Improved the checks a little so that
they may detect too big Compressed Size at initialization
time if lzma_options_block.total_size or .total_limit is
known.

Allow encoding and decoding Blocks with combinations of
fields that are not allowed by the file format specification.
Doing this requires that the application passes such a
combination in lzma_options_lzma; liblzma doesn't do that,
but it's not impossible that someone could find them useful
in some custom file format.
2008-01-25 23:12:36 +02:00
Lasse Collin 7b8fc7e6b5 Improved the memory limitter:
- Added lzma_memlimit_max() and lzma_memlimit_reached()
    API functions.
  - Added simple estimation of malloc()'s memory usage
    overhead.
  - Fixed integer overflow detection in lzma_memlimit_alloc().
  - Made some white space cleanups and added more comments.

The description of lzma_memlimit_max() in memlimit.h is bad
and should be improved.
2008-01-25 19:20:28 +02:00
Lasse Collin db9df0a960 Fix decoding of empty Metadata Blocks, that don't have
even the Metadata Flags field. Earlier the code allowed
such files; now they are prohibited as the file format
specification requires.
2008-01-23 23:43:00 +02:00
Lasse Collin 765f0b05f6 Fix a bug related to 99e12af4e2.
lzma_metadata.header_metadata_size was not properly set to
zero if the Metadata had only the Metadata Flags field.
2008-01-23 23:38:18 +02:00
Lasse Collin 3a7cc5c3de Fix decoding of Extra Records that have empty Data. 2008-01-23 23:35:49 +02:00
Lasse Collin e5fdec93e2 Add the trailing '\0' to lzma_extra.data as the API header
already documents.
2008-01-23 22:02:38 +02:00
Lasse Collin ae0cd09a66 Return LZMA_STREAM_END instead of LZMA_OK if
LZMA_SYNC_FLUSH or LZMA_FULL_FLUSH is used when
there's no unfinished Block open.
2008-01-23 21:05:33 +02:00
Lasse Collin 8c8eb14055 Fixed a typo. 2008-01-23 13:42:35 +02:00
Lasse Collin 980f65a9a1 Fix a memory leak in the Subblock encoder. 2008-01-23 13:40:45 +02:00
Lasse Collin 99e12af4e2 Fix Size of Header Metadata Block handling. Now
lzma_metadata.header_metadata_size == LZMA_VLI_VALUE_UNKNOWN
is not allowed at all. To indicate missing Header Metadata
Block, header_metadata_size must be set to zero. This is
what Metadata decoder does after this patch too.

Note that other missing fields in lzma_metadata are still
indicated with LZMA_VLI_VALUE_UNKNOWN. This isn't as
illogical as it sounds at first, because missing Size of
Header Metadata Block means that Header Metadata Block is
not present in the Stream. With other Metadata fields,
a missing field means only that the value is unknown.
2008-01-23 13:36:07 +02:00
Lasse Collin 58b78ab20c Fix a memory leak in metadata_decoder.c. 2008-01-23 13:15:55 +02:00
Lasse Collin 4d8cdbdab4 Fix the fix 863028cb7a which
just moved to problem. Now it's really fixed.
2008-01-23 13:13:58 +02:00
Lasse Collin 67321de963 Take advantage of return_if_error() macro in
lzma_info_metadata_set() in info.c.
2008-01-23 00:21:04 +02:00
Lasse Collin 863028cb7a Fixed a dangling pointer that caused invalid free(). 2008-01-23 00:18:32 +02:00
Lasse Collin cf49f42a6b Added lzma_easy_* functions. These should make using
liblzma as easy as using zlib, because the easy API
don't require developers to know any fancy LZMA options.

Note that Multi-Block Stream encoding is currently broken.
The easy API should be OK, the bug(s) are elsewhere.
2008-01-22 22:49:24 +02:00
Lasse Collin 1747b85a43 Fix Multi-Block Stream encoder's EOPM usage. 2008-01-22 21:16:22 +02:00
Lasse Collin 0ed6f1adce Made lzma_extra pointers const in lzma_options_stream. 2008-01-22 00:15:11 +02:00
Lasse Collin 107259e306 Fix alignment handling bugs in Subblock encoder.
This leaves one known alignment bug unfixed: If repeat count
doesn't fit into 28-bit integer, the encoder has to split
this to multiple Subblocks with Subblock Type `Repeating Data'.
The extra Subblocks may have wrong alignment. Correct alignment
is restored after the split Repeating Data has been completely
written out.

Since the encoder doesn't even try to fix the alignment unless
the size of Data is at least 4 bytes, to trigger this bug you
need at least 4 GiB of repeating data with sequence length of
4 or more bytes. Since the worst thing done by this bug is
misaligned data (no data corruption), this bug simply isn't
worth fixing, because a proper fix isn't simple.
2008-01-20 20:12:58 +02:00
Lasse Collin e141fe1895 Implemented LZMA_SYNC_FLUSH support to the Subblock encoder.
The API for handing Subfilters was changed to make it
consistent with LZMA_SYNC_FLUSH.

A few sanity checks were added for Subfilter handling. Some
small bugs were fixed. More comments were added.
2008-01-19 21:16:33 +02:00
Lasse Collin 23c227a864 Revised the Delta filter implementation. The initialization
function is still shared between encoder and decoder, but the
actual coding is in separate files for encoder and decoder.

There are now separate functions for the actual delta
calculation depending on if Delta is the last filter in the
chain or not. If it is the last, the new code copies the
data from input to output buffer and does the delta
calculation at the same time. The old code first copied the
data, then did the delta in the target buffer, which required
reading through the data twice.

Support for LZMA_SYNC_FLUSH was added to the Delta encoder.
This doesn't change anything in the file format.
2008-01-19 15:19:21 +02:00
Lasse Collin ab5feaf1fc Fix LZMA_SYNC_FLUSH handling in LZ and LZMA encoders.
That code is now almost completely in LZ coder, where
it can be shared with other LZ77-based algorithms in
future.
2008-01-18 20:02:52 +02:00
Lasse Collin 61d1784d8f Set stdin and stdout to binary mode on Windows. This patch is
a forward port of b7b22fcb979a16d3a47c8001f058c9f7d4416068
from lzma-utils-legacy.git. I don't know if the new code base
builds on Windows, but this is a start.
2008-01-18 14:17:37 +02:00
Lasse Collin 33be3c0e24 Subblock decoder: Don't exit the main loop in decode_buffer()
too early if we hit End of Input while decoding a Subblock of
type Repeating Data. To keep the loop termination condition
elegant, the order of enumerations in coder->sequence were
changed.

To keep the case-labels in roughly the same order as the
enumerations in coder->sequence, large chunks of code was
moved around. This made the diff big and ugly compared to
the amount of the actual changes made.
2008-01-17 18:56:53 +02:00
Lasse Collin b254bd97b1 Fix wrong too small size of argument unfiltered_max
in ia64_coder_init(). It triggered assert() in
simple_coder.c, and could have caused a buffer overflow.

This error was probably a copypaste mistake, since most
of the simple filters use unfiltered_max = 4.
2008-01-17 17:39:42 +02:00
Lasse Collin 8f5794c8f1 Added --delta to the output of "lzma --help". 2008-01-17 17:27:45 +02:00
Lasse Collin f88590e001 Fix Subblock docoder: If Subblock filter was used with known
Uncompressed Size, and the last output byte was from RLE,
the code didn't stop decoding as it should have done.
2008-01-17 13:14:20 +02:00
Lasse Collin 7599bb7064 Plugged a memory leak in stream_decoder.c. 2008-01-16 14:48:04 +02:00
Lasse Collin 0b58153931 Added memory leak detection to lzmadec.c. 2008-01-16 14:47:27 +02:00
Lasse Collin 5b5b13c7bb Added lzma_memlimit_count(). 2008-01-16 14:46:50 +02:00
Lasse Collin 19389f2b82 Added ARRAY_SIZE(array) macro. 2008-01-16 14:31:44 +02:00
Lasse Collin 9bc33a54cb Make Uncompresed Size validation more strict
in alone_decoder.c.
2008-01-16 13:27:03 +02:00
Lasse Collin 01d71d60b7 Free the allocated memory in lzmadec if debugging is
enabled. This should make it possible to detect possible
memory leaks with Valgrind.
2008-01-15 17:46:59 +02:00
Lasse Collin f10fc6a69d Use fastpos.h when encoding LZMA dictionary size in
Filter Flags encoder.
2008-01-15 14:23:35 +02:00
Lasse Collin e5728142a2 Revised the fastpos code. It now uses the slightly faster
table-based version from LZMA SDK 4.57. This should be
fast on most systems.

A simpler and smaller alternative version is also provided.
On some CPUs this can be even a little faster than the
default table-based version (see comments in fastpos.h),
but on most systems the table-based code is faster.
2008-01-15 14:02:22 +02:00
Lasse Collin 10437b5b56 Added bsr.h. 2008-01-15 13:32:13 +02:00
Lasse Collin 54ec204f58 Omit invalid space from printf() format string
in price_table_gen.c.
2008-01-15 12:20:41 +02:00
Lasse Collin 01b4b19f49 Removed a few unused macros from lzma_common.h. 2008-01-15 09:54:34 +02:00
Lasse Collin 19bd7f3cf2 Fix a typo in lzma_encoder.c. 2008-01-15 08:37:42 +02:00
Lasse Collin 9f9b198301 Convert bittree_get_price() and bittree_reverse_get_price()
from macros to inline functions.
2008-01-15 08:36:25 +02:00
Lasse Collin 78e85cb1a7 Fix CRC code in case --enable-small is used. 2008-01-15 07:44:59 +02:00
Lasse Collin d13d693155 Added precomputed range coder probability price table. 2008-01-15 07:40:21 +02:00
Lasse Collin 362dc3843b Remove RC_BUFFER_SIZE from lzma_encoder_private.h
and replace it with a sanity check.
2008-01-14 13:42:43 +02:00
Lasse Collin e22b37968d Major changes to LZ encoder, LZMA encoder, and range encoder.
These changes implement support for LZMA_SYNC_FLUSH in LZMA
encoder, and move the temporary buffer needed by range encoder
from lzma_range_encoder structure to lzma_lz_encoder.
2008-01-14 13:39:54 +02:00
Lasse Collin b59ef39737 Added one assert() to process.c of the command line tool. 2008-01-14 13:34:29 +02:00
Lasse Collin 9547e734a0 Don't use coder->lz.stream_end_was_reached in assertions
in match_c.h.
2008-01-14 12:09:52 +02:00
Lasse Collin 3e09e1c058 In lzma_read_match_distances(), don't use
coder->lz.stream_end_was_reached. That variable
will be removed, and the check isn't required anyway.
Rearrange the check so that it doesn't make one to
think that there could be an integer overflow.
2008-01-14 12:08:02 +02:00
Lasse Collin a670fec802 Small LZMA_SYNC_FLUSH fixes to Block and Single-Stream encoders. 2008-01-14 11:56:41 +02:00
Lasse Collin 3599dba957 More fixes to LZMA decoder's flush marker handling. 2008-01-14 11:54:56 +02:00
Lasse Collin f73c2ab607 Eliminate lzma_lz_encoder.must_move_pos. It's needed
only in one place which isn't performance criticial.
2008-01-10 17:13:42 +02:00
Lasse Collin 379fbbe84d Take advantage of return_if_error() in block_decoder.c. 2008-01-08 23:11:59 +02:00
Lasse Collin 7054c5f588 Fix decoding of Blocks that have only Block Header. 2008-01-08 22:58:42 +02:00
Lasse Collin faeac7b7ac Disable CRC32 from Block Headers when --check=none
has been specified.
2008-01-08 18:50:30 +02:00
Lasse Collin a751126dbb Fixed encoding of empty files. Arguments to is_size_valid()
were in wrong order in block_encoder.c.
2008-01-08 13:36:29 +02:00
Lasse Collin e2417b2b91 More pre-C99 inttypes.h compatibility fixes. Now the code
should work even if the system has no inttypes.h.
2008-01-08 00:48:30 +02:00
Lasse Collin c15a7abf66 With printf(), use PRIu64 with a cast to uint64_t instead
of %zu, because some pre-C99 libc versions don't support %zu.
2008-01-06 19:45:27 +02:00
Lasse Collin 4e7e54c4c5 Introduced compatibility with systems that have pre-C99
or no inttypes.h. This is useful when the compiler has
good enough support for C99, but libc headers don't.

Changed liblzma API so that sys/types.h and inttypes.h
have to be #included before #including lzma.h. On systems
that don't have C99 inttypes.h, it's the problem of the
applications to provide the required types and macros
before #including lzma.h.

If lzma.h defined the missing types and macros, it could
conflict with third-party applications whose configure
has detected that the types are missing and defined them
in config.h already. An alternative would have been
introducing lzma_uint32 and similar types, but that would
just be an extra pain on modern systems.
2008-01-06 16:27:41 +02:00
Lasse Collin a71864f77d Fix typo in comment (INT64_MAX -> UINT64_MAX). 2008-01-05 19:57:00 +02:00
Lasse Collin d160ee3259 Another bug fix for flush marker detection. 2008-01-05 01:20:24 +02:00
Lasse Collin fc67f79f60 Fix stupid bugs in flush marker detection. 2008-01-04 21:37:01 +02:00
Lasse Collin 0029cbbabe Added support for flush marker, which will be in files
that use LZMA_SYNC_FLUSH with encoder (not implemented
yet). This is a new feature in the raw LZMA format,
which isn't supported by old decoders. This shouldn't
be a problem in practice, since lzma_alone_encoder()
will not allow LZMA_SYNC_FLUSH, and thus not allow
creating files on decodable with old decoders.

Made lzma_decoder.c to require tab width of 4 characters
if one wants to fit the code in 80 columns. This makes
the code easier to read.
2008-01-04 21:30:33 +02:00
Lasse Collin bbfd1f6ab0 Moved range decoder initialization (reading the first
five input bytes) from LZMA decoder to range decoder
header. Did the same for decoding of direct bits.
2008-01-04 20:45:05 +02:00
Lasse Collin 44b333d461 Use the filename suffix .S instead of .s for assembler files
so that the preprocessor removes the /* */ style comments,
which are not supported by some non-GNU assemblers (Solaris)
that otherwise work with this code.
2007-12-14 10:07:10 +02:00
Lasse Collin ec1c82b2e8 Fixed wrong symbol name in crc64_x86.s. 2007-12-14 09:59:05 +02:00
Lasse Collin 2881570df6 Use .globl instead of .global in x86 assembler code for
better portability. Still needs fixing the commenting.
2007-12-14 09:53:24 +02:00
Lasse Collin 698470b8f3 Fixed a few short options that take an argument.
short_opts[] was missing colons to indicate
required argument. Thanks to Fabio Pedretti for
the bug report.
2007-12-13 20:14:37 +02:00
Lasse Collin 918bcb0e07 Removed uncompressed size tracking from Delta encoder too. 2007-12-11 17:08:04 +02:00
Lasse Collin 3e16d51dd6 Remove uncompressed size tracking from the filter encoders.
It's not strictly needed there, and just complicates the
code. LZ encoder never even had this feature.

The primary reason to have uncompressed size tracking in
filter encoders was validating that the application
doesn't give different amount of input that it had
promised. A side effect was to validate internal workings
of liblzma.

Uncompressed size tracking is still present in the Block
encoder. Maybe it should be added to LZMA_Alone and raw
encoders too. It's simpler to have one coder just to
validate the uncompressed size instead of having it
in every filter.
2007-12-11 16:49:19 +02:00
Lasse Collin 5286723e0d Get rid of no-NLS gnulib. I don't know how to get it
working with Automake. People who want smaller lzmadec
should use --disable-nls on non-GNU systems.
2007-12-11 14:10:53 +02:00
Lasse Collin 7c1ad41eb6 Fixed wrong type of flags_size in Subblock encoder. 2007-12-11 11:18:58 +02:00
Lasse Collin ce64df7162 Bumped version number to 4.42.3alpha. 2007-12-10 20:44:16 +02:00
Lasse Collin 2ab8adb516 Added LZMA_SYNC_FLUSH support to the Copy filter. 2007-12-09 21:43:15 +02:00
Lasse Collin 329c272d50 Added missing LZMA_API to the C versions of the CRC functions.
The x86 assembler versions were already OK.
2007-12-09 17:14:07 +02:00
Lasse Collin 07ac881779 Take advantage of return_if_error() macro in more places.
Cleaned Subblock filter's initialization code too.
2007-12-09 17:06:45 +02:00
Lasse Collin ff946ceb79 Re-enabled the security checks in Subblock decoder
that were disabled for debugging reasons.
2007-12-09 11:24:48 +02:00
Lasse Collin 5d018dc035 Imported to git. 2007-12-09 00:42:33 +02:00