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2009-06-27Silence a compiler warning on DOS-like systems.Lasse Collin1-1/+4
2009-06-27Hopefully improved portability of the assembler code inLasse Collin2-2/+14
Autotools based builds on Windows.
2009-06-26Updated comments to match renamed files.Lasse Collin4-4/+4
2009-06-26Rename process.[hc] to coder.[hc] and io.[hc] to file_io.[hc]Lasse Collin6-6/+6
to avoid problems on systems with system headers with those names.
2009-06-26Rename process_file() to coder_run().Lasse Collin3-9/+8
2009-06-26Ugly hack to make it possible to use the thousand separatorLasse Collin4-23/+78
format character with snprintf() on POSIX systems but not on non-POSIX systems and still keep xgettext working.
2009-06-26Basic support for building with Cygwin and MinGW usingLasse Collin4-9/+14
the Autotools based build system. It's not good yet, more fixes will follow.
2009-06-26Fix @variables@ to $(variables) in Makefile.am files.Lasse Collin10-44/+46
Fix the ordering of libgnu.a and LTLIBINTL on the linker command line and added missing LTLIBINTL to tests/Makefile.am.
2009-06-24Support HW_PHYSMEM64Lasse Collin1-11/+19
2009-06-24Cast a char argument to isspace() to unsigned char.Lasse Collin1-2/+9
2009-06-04Added xzdec man page.Lasse Collin2-0/+184
2009-06-04Harmonized xzdec --memory with xz --memory and madeLasse Collin1-21/+53
minor cleanups.
2009-06-04Fix purporse -> purpose. Thanks to Andrew Dudman.Lasse Collin1-1/+1
Released .xz spec 1.0.2 due to this fix too.
2009-05-26Make the raw value of the Check field available to applicationsLasse Collin4-31/+42
via lzma_block structure. This changes ABI but not doesn't break API.
2009-05-23Remove undocumented alternative option names --bcj, --ppc,Lasse Collin1-3/+0
and --itanium.
2009-05-23Add support for specifying the BCJ filter start offsetLasse Collin4-21/+76
in the xz command line tool.
2009-05-22Added support for --quiet and --no-warn to xzdec.Lasse Collin1-27/+49
Cleaned up the --help message a little.
2009-05-22Use the 40 % of RAM memory usage limit in xzdec too.Lasse Collin1-5/+5
Update the memory usage info text in --help to match the text in xz --long-help.
2009-05-22Add --no-warn.Lasse Collin4-1/+34
2009-05-22Fix a comment.Lasse Collin1-1/+1
2009-05-22Remove the --info option, which was an alias for --list.Lasse Collin1-1/+0
2009-05-22If xz is run as lzma, unlzma, or lzcat, simply implyLasse Collin1-11/+6
--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.
2009-05-22Make the default memory usage limit 40 % of RAM for bothLasse Collin5-88/+82
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.
2009-05-21Support special value "max" where xz and xzdec accept an integer.Lasse Collin2-1/+9
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.
2009-05-21Install lzdiff, lzgrep, and lzmore as symlinksABCD1-2/+14
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.
2009-05-02Use a GCC-specific #pragma instead of GCC-specificLasse Collin2-5/+5
-Wno-uninitialized to silence a bogus warning.
2009-04-28Fixed a crash in liblzma.Lasse Collin11-13/+13
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.
2009-04-15Fix uint32_t -> size_t in ARM and ARM-Thumb filters.Lasse Collin2-2/+2
On 64-bit system it would have gone into infinite loop if a single input buffer was over 4 GiB (unlikely).
2009-04-13Quick & dirty update to support xz in diff/grep/more scripts.Lasse Collin7-75/+119
2009-04-13Put the interesting parts of XZ Utils into the public domain.Lasse Collin177-1750/+723
Some minor documentation cleanups were made at the same time.
2009-04-10Fix off-by-one in LZ decoder.Lasse Collin1-1/+1
Fortunately, this bug had no security risk other than accepting some corrupt files as valid.
2009-03-18Fix wrong macro names in lc_cpucores.m4 and cpucores.h.Lasse Collin1-2/+2
Thanks to Bert Wesarg.
2009-02-22Add a rough explanation of --extreme to output of --help.Lasse Collin1-0/+4
2009-02-22Fixes to progress message handling in xz:Lasse Collin3-213/+351
- 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.
2009-02-18Added files missing from the previous commit.Lasse Collin2-1/+39
2009-02-17Added lzma_easy_buffer_encode(). Splitted easy.c into smallLasse Collin6-47/+175
pieces to avoid unneeded dependencies making statically linked applications bigger than needed.
2009-02-15Make physmem.h work on old Windows versions.Lasse Collin1-4/+27
Thanks to Hongbo Ni for the original patch.
2009-02-14Fix microsecond vs. nanosecond confusion in my_time().Lasse Collin1-1/+1
2009-02-14Cleanups to the code that detects the amount of RAM andLasse Collin7-43/+102
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.
2009-02-13Changed how the version number is specified in various places.Lasse Collin4-6/+70
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.
2009-02-13Fix handling of integrity check type in the xz command line tool.Lasse Collin2-1/+12
2009-02-13Improve support for DOS-like systems.Lasse Collin10-30/+86
Here DOS-like means DOS, Windows, and OS/2.
2009-02-09Let the user specify custom CFLAGS on the make commandLasse Collin1-1/+1
line. Previously custom CFLAGS worked only when they were passed to configure.
2009-02-08Fix aliasing issue in physmem.h.Lasse Collin1-9/+10
2009-02-08Add a separate internal function to initialize the CRC32Lasse Collin3-3/+12
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.
2009-02-08Make "xz --force" to write to terminal as the errorLasse Collin1-1/+1
message suggests.
2009-02-08Support both slash and backslash as path componentLasse Collin1-0/+9
separator on Windows when parsing argv[0].
2009-02-07Make it easy to choose if command line tools should beLasse Collin2-7/+6
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.
2009-02-07Assume 32 MiB of RAM on unsupported operating systems likeLasse Collin1-1/+1
the comment in hardware.c already said.
2009-02-07Support LZMA_API_STATIC in assembler files toLasse Collin2-0/+6
avoid __declspec(dllexport) equivalent.
2009-02-07Introduced LZMA_API_STATIC macro, which the applicationsLasse Collin2-8/+25
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.
2009-02-05Various code cleanups the the xz command line tool.Lasse Collin18-246/+399
It now builds with MinGW.
2009-02-03Another utime() fix.Lasse Collin1-4/+5
2009-02-03Fix wrong filename argument for utime() and utimes().Lasse Collin1-2/+2
This doesn't affect most systems, since most systems have better functions available.
2009-02-02Updated the x86 assembler code:Lasse Collin2-22/+144
- 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.
2009-02-02Modify LZMA_API macro so that it works on Windows withLasse Collin54-176/+177
other compilers than MinGW. This may hurt readability of the API headers slightly, but I don't know any better way to do this.
2009-02-01Fix a bug in lzma_block_buffer_decode(), although thisLasse Collin1-4/+4
function should be rewritten anyway.
2009-02-01Added initial version of raw buffer-to-buffer codingLasse Collin4-20/+221
functions, and cleaned up filter.h API header a little. May be very buggy, not tested yet.
2009-02-01Fix missing newlines in xzdec.c.Lasse Collin1-3/+3
2009-02-01Use __cdecl also for function pointers in liblzma API whenLasse Collin3-20/+20
on Windows.
2009-01-31Add LZMA_API to liblzma API headers. It's useful at leastLasse Collin16-88/+130
on Windows. sysdefs.h no longer #includes lzma.h, so lzma.h has to be #included separately where needed.
2009-01-31Use _WIN32 instead of WIN32 in xzdec.c to test if compiling on Windows.Lasse Collin1-2/+2
2009-01-31Fix two lines in lzma.h on which the # wasn't at theLasse Collin1-2/+2
beginning of the line.
2009-01-31Add support for using liblzma headers in MSVC, which has noLasse Collin1-24/+46
stdint.h or inttypes.h.
2009-01-31Fix # -> ## in a macro in lzma.h.Lasse Collin1-1/+1
2009-01-30Remove dangling crc64_init.c.Lasse Collin1-55/+0
2009-01-28Fix uninitialized variables in alone_decoder.c. This bug wasLasse Collin1-0/+2
triggered by the previous commit, since these variables were not used by anything before support for a preset dictionary.
2009-01-27Added initial support for preset dictionary for raw LZMA1Lasse Collin8-27/+77
and LZMA2. It is not supported by the .xz format or the xz command line tool yet.
2009-01-26Regenerate the CRC tables without trailing blanks.Lasse Collin4-2024/+2024
2009-01-26remove trailing blanks from all but .xz filesJim Meyering4-7/+7
2009-01-26Add lzma_block_buffer_decode().Lasse Collin3-0/+129
2009-01-26Add more sanity checks to lzma_stream_buffer_decode().Lasse Collin1-0/+7
2009-01-26Avoid hardcoded constant in easy.c.Lasse Collin1-1/+1
2009-01-26Tiny bit better sanity check in block_util.cLasse Collin1-1/+1
2009-01-25Fix a dumb bug in Block decoder, which made it returnLasse Collin1-3/+3
LZMA_DATA_ERROR with valid data. The bug was added in e114502b2bc371e4a45449832cb69be036360722.
2009-01-23Added lzma_stream_buffer_decode() and made minor cleanups.Lasse Collin4-2/+144
2009-01-22Fix a comment.Lasse Collin1-1/+1
2009-01-20Add some single-call buffer-to-buffer coding functions.Lasse Collin8-26/+744
2009-01-20Block encoder cleanupsLasse Collin2-21/+32
2009-01-20Use LZMA_PROG_ERROR in lzma_code() as documented in base.h.Lasse Collin1-16/+8
2009-01-19Fix handling of non-fatal errors in lzma_code().Lasse Collin1-1/+8
2009-01-19Move some LZMA2 constants to lzma2_encoder.h so that theyLasse Collin3-14/+16
can be used outside lzma2_encoder.c.
2009-01-19Remove dead code.Lasse Collin1-8/+0
2009-01-17Beta was supposed to be API stable but I had forgot to renameLasse Collin8-14/+14
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.
2009-01-07Use pthread_sigmask() instead of sigprocmask() when pthreadsLasse Collin3-2/+9
are enabled.
2008-12-31Bumped version to 4.999.8beta right after the releaseLasse Collin1-1/+1
of 4.999.7beta.
2008-12-31Prepare for 4.999.7beta release.Lasse Collin1-1/+1
2008-12-31Cleaned up some comments in the API headers.Lasse Collin3-14/+15
2008-12-31Renamed lzma_options_simple to lzma_options_bcj in the API.Lasse Collin6-18/+18
The internal implementation is still using the name "simple". It may need some cleanups, so I look at it later.
2008-12-31Updated src/liblzma/Makefile.am to use liblzma.pc.in, whichLasse Collin1-2/+2
should have been in the previous commit.
2008-12-31Remove lzma_init() and other init functions from liblzma API.Lasse Collin30-441/+322
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.
2008-12-27Revert a change made in 3b34851de1eaf358cf9268922fa0eeed8278d680Lasse Collin1-15/+8
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.
2008-12-27Some xz command line tool improvements.Lasse Collin5-44/+121
2008-12-27Bunch of liblzma tweaks, including some API changes.Lasse Collin23-262/+294
The API and ABI should now be very close to stable, although the code behind it isn't yet.
2008-12-18Updated Makefile.am that was missing from the previous commit.Lasse Collin1-1/+0
2008-12-17Remove the alignment functions for now. Maybe they willLasse Collin4-176/+0
be added back in some form later, but the current version wasn't modular, so it would need fixing anyway.
2008-12-17xz message handling improvementsLasse Collin3-14/+146
2008-12-15Fix a dumb bug in .lzma decoder which was introduced inLasse Collin1-15/+14
the previous commit. (Probably the previous commit has other bugs too, it wasn't tested.)
2008-12-15Bunch of liblzma API cleanups and fixes.Lasse Collin26-422/+857
2008-12-15The LZMA2 decoder fix introduced a bug to LZ decoder,Lasse Collin1-10/+23
which made LZ decoder return too early after dictionary reset. This fixes it.
2008-12-15Fix data corruption in LZMA2 decoder.Lasse Collin3-8/+32
2008-12-10Remove obsolete comment.Lasse Collin1-1/+0
2008-12-10Use "decompression" consistently in --long-help.Lasse Collin1-1/+1
2008-12-10Added preset=NUM to --lzma1 and --lzma2. This makes it easyLasse Collin2-0/+9
to take a preset as a template and modify it a little.
2008-12-09Make the memusage functions of LZMA1 and LZMA2 encodersLasse Collin3-16/+35
to validate the filter options. Add missing validation to LZMA2 encoder when options are changed in the middle of encoding.
2008-12-01In command line tool, take advantage of memusage calculation'sLasse Collin1-4/+4
ability to also validate the filter chain and options (not implemented yet for all filters).
2008-12-01Validate the filter chain before checking filter-specificLasse Collin1-4/+10
memory usage.
2008-12-01Make the memusage functions of LZMA1 and LZMA2 decodersLasse Collin3-9/+17
to validate the filter options.
2008-12-01Added the changes for Delta filter that should have beenLasse Collin2-2/+2
part of 656ec87882ee74b192c4ea4a233a235eca7b04d4.
2008-12-01LZMA2 decoder cleanups. Make it require new LZMA propertiesLasse Collin1-54/+41
also in the first LZMA chunk after a dictionary reset in uncompressed chunk.
2008-12-01Added lzma_delta_coder_memusage() which also validatesLasse Collin8-39/+75
the options.
2008-11-28Tested using COLUMNS environment variable to avoid brokenLasse Collin1-5/+9
progress indicator but since COLUMNS isn't usually available, the code was left commented out.
2008-11-27Cleanups to message.c.Lasse Collin1-29/+18
2008-11-25Remove the nowadays unneeded memory limitting malloc() wrapper.Lasse Collin5-498/+0
2008-11-23VLI encoder and decoder cleanups. Made encoder returnLasse Collin2-13/+33
LZMA_PROG_ERROR in single-call mode if there's no output space.
2008-11-22Typo fixLasse Collin1-1/+1
2008-11-20Support NetBSD's errno for O_NOFOLLOW.Lasse Collin1-0/+8
2008-11-20Build xzdec and lzmadec from xzdec.c. xzdec supports only .xzLasse Collin2-178/+140
files and lzmadec only .lzma files.
2008-11-20Minor cleanups to xzdec.Lasse Collin1-10/+10
2008-11-19Renamed lzma to xz and lzmadec to xzdec. We create symlinksLasse Collin24-24/+26
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.
2008-11-19Oh well, big messy commit again. Some highlights:Lasse Collin50-2258/+2963
- 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
2008-10-07Fixed some help messages.Lasse Collin1-3/+3
2008-10-07Made the preset numbering more logical in liblzma API.Lasse Collin5-17/+18
2008-10-03Fixed suffix handling with --format=raw.Lasse Collin1-9/+19
2008-10-02Initial changes to change the suffix of the new format to .xz.Lasse Collin5-51/+131
This also fixes a bug related to --suffix option. Some issues with suffixes with --format=raw were not fixed.
2008-09-30Fixed Stream decoder to actually use the first_stream variable.Lasse Collin1-0/+5
2008-09-30Fixed uninitialized variable in Stream decoder.Lasse Collin1-0/+1
2008-09-27Fix conflicting Subblock helper filter's ID.Lasse Collin1-1/+1
2008-09-27Changed magic bytes to match the updated spec. FilenameLasse Collin2-3/+3
suffix wasn't changed yet.
2008-09-27Some API changes, bug fixes, cleanups etc.Lasse Collin33-361/+433
2008-09-17Miscellaneous LZ and LZMA encoder cleanupsLasse Collin5-117/+29
2008-09-13LZ decoder cleanupLasse Collin1-3/+2
2008-09-13Renamed constants:Lasse Collin49-195/+191
- LZMA_VLI_VALUE_MAX -> LZMA_VLI_MAX - LZMA_VLI_VALUE_UNKNOWN -> LZMA_VLI_UNKNOWN - LZMA_HEADER_ERRRO -> LZMA_OPTIONS_ERROR
2008-09-12Improved the Stream Flags handling API.Lasse Collin7-18/+123
2008-09-11Remove a check from Block encoder that should have alreadyLasse Collin1-5/+0
been removed in 2ba01bfa755e47ff6af84a978e3c8d63d7d2775e.
2008-09-11Remove bogus #includes.Lasse Collin4-36/+0
2008-09-11Fix a compiler error on big endian systems that don'tLasse Collin1-14/+18
support unaligned memory access.
2008-09-11Silence a compiler warning.Lasse Collin1-1/+1
2008-09-10Bumped version to 4.999.6alpha.Lasse Collin1-1/+1
2008-09-10Check for LZMA_FILTER_RESERVED_START in filter_flags_encoder.c.larhzu/v4.999.5alphaLasse Collin1-3/+4
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.
2008-09-10Filter handling cleanupsLasse Collin6-151/+156
2008-09-10CommentsLasse Collin1-1/+5
2008-09-10Cleaned up Block encoder and moved the no longer sharedLasse Collin5-100/+66
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.
2008-09-07Changed Filter ID of LZMA to 0x20.Lasse Collin1-1/+1
2008-09-06CommentsLasse Collin5-39/+65
2008-09-06Some API cleanupsLasse Collin10-166/+282
2008-09-04Added support for raw encoding and decoding to the commandLasse Collin4-34/+50
line tool, and made various cleanups. --lzma was renamed to --lzma1 to prevent people from accidentally using LZMA when they want LZMA2.
2008-09-04Don't allow LZMA_SYNC_FLUSH with decoders anymore. There'sLasse Collin3-3/+2
simply nothing that would use it. Allow LZMA_FINISH to the decoders, which will usually ignore it (auto decoder and Stream decoder being exceptions).
2008-09-02Command line tool fixesLasse Collin1-8/+13
2008-09-02Auto decoder cleanupLasse Collin1-1/+1
2008-09-02Updated auto decoder to handle LZMA_CONCATENATED when decodingLasse Collin1-16/+71
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.
2008-09-02Stream decoder cleanupsLasse Collin1-25/+32
2008-09-02Some fixes to LZ encoder.Lasse Collin3-75/+94
2008-08-31Fix wrong pointer calculation in LZMA encoder.Lasse Collin1-1/+3
2008-08-28Sort of garbage collection commit. :-| Many things are stillLasse Collin147-7082/+8453
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.
2008-06-20Remove some redundant code from LZMA encoder.Lasse Collin1-14/+1
2008-06-19Add limit of lc + lp <= 4. Now we can allocate theLasse Collin6-91/+43
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.
2008-06-18CommentsLasse Collin1-5/+2
2008-06-18Update the code to mostly match the new simpler file formatLasse Collin98-6746/+3836
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.
2008-06-11Fix uninitialized variable in LZMA encoder. This wasLasse Collin1-0/+2
introduced in 369f72fd656f537a9a8e06f13e6d0d4c242be22f.
2008-06-11Improve command line integer parsing a little in lzma andLasse Collin2-22/+32
lzmadec to make them accept also KiB in addition Ki etc. Fix also memory usage information in lzmadec --help.
2008-06-10s/decompressed/compressed/ in the command line tool'sLasse Collin1-1/+1
error message.
2008-06-01Fix a buffer overflow in the LZMA encoder. It was due to myLasse Collin8-620/+532
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.
2008-05-11Remove support for pre-C89 libc versions that lack memcpy,Lasse Collin2-14/+3
memmove, and memset.
2008-05-06Bunch of grammar fixes from meyering.Lasse Collin2-4/+4
2008-05-06Typo fixLasse Collin1-1/+1
2008-05-04Don't print an error message on broken pipe unless --verboseLasse Collin1-1/+14
is used.
2008-04-30Fix a crash with --format=alone if other filters than LZMALasse Collin1-0/+9
are specified on the command line.
2008-04-28Fixed wrong spelling "limitter" to "limiter". This affectsLasse Collin7-20/+20
liblzma's API.
2008-04-25Prevent LZ encoder from hanging with known uncompressedlarhzu/v4.999.3alphaLasse Collin1-2/+7
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.
2008-04-25Removed src/liblzma/common/sysdefs.h symlink, which wasLasse Collin5-5/+3
annoying, because "make dist" put two copies of sysdefs.h into the tarball instead of the symlink.
2008-04-25Bumped version number to 4.999.3alpha. It will become 5.0.0Lasse Collin1-12/+10
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.
2008-04-24Fix a memory leak by calling free(extra->data) inLasse Collin1-0/+1
lzma_extra_free().
2008-04-24Make unlzma and lzcat symlinks.Lasse Collin1-0/+12
2008-04-24Fixed a bug in command line option parsing.Lasse Collin1-1/+1
2008-04-24Added two assert()s.Lasse Collin1-1/+3
2008-04-24Switch to uint16_t as the type of range coder probabilities.Lasse Collin1-6/+19
2008-04-24Fix wrong return type (uint32_t -> bool).Lasse Collin2-2/+2
2008-04-24Fix data corruption in LZ encoder with LZMA_SYNC_FLUSH.Lasse Collin3-5/+38
2008-04-24Fix fastpos problem in Makefile.am when built with --enable-small.Lasse Collin1-1/+4
2008-04-24Use 64-bit integer as range encoder's cache size. This fixes aLasse Collin1-1/+1
theoretical data corruption, which should be very hard to trigger even intentionally.
2008-03-24Replaced the range decoder optimization that used arithmeticLasse Collin1-37/+16
right shift with as fast version that doesn't need arithmetic right shift. Removed the related check from configure.ac.
2008-03-22Take advantage of arithmetic right shift in range decoder.Lasse Collin1-15/+37
2008-03-22Update a comment to use the variable name rep_len_decoder.Lasse Collin1-1/+1
(And BTW, the previous commit actually did change the program logic slightly.)
2008-03-22Demystified the "state" variable in LZMA code. Use theLasse Collin6-70/+107
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.
2008-03-14Fix data corruption in LZMA encoder. Note that this bug wasLasse Collin1-0/+4
specific to liblzma and was *not* present in LZMA SDK.
2008-03-14Fix a comment API header.Lasse Collin1-1/+1
2008-03-12Make lzma_stream.next_in const. Let's see if anyone complains.Lasse Collin1-1/+1
2008-03-11Apply a minor speed optimization to LZMA decoder.Lasse Collin1-42/+43
2008-03-11Initialize the last byte of the dictionary to zero so thatLasse Collin1-0/+1
lz_get_byte(lz, 0) returns zero. This was broken by 1a3b21859818e4d8e89a1da99699233c1bfd197d.
2008-03-10Really fix the price count initialization.Lasse Collin1-2/+2
2008-03-10Initialize align_price_count and match_price_count inLasse Collin1-0/+2
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.
2008-03-10Always initialize lz->temp_size in lz_decoder.c. temp_size didLasse Collin1-5/+6
get initialized as a side-effect after allocating a new decoder, but not when the decoder was reused.
2008-03-10Don't fill allocated memory with 0xFD when debugging isLasse Collin1-3/+4
enabled. It hides errors from Valgrind.
2008-02-28Remove two redundant validity checks from the LZMA decoder.Lasse Collin1-19/+4
These are already checked elsewhere, so omitting these gives (very) tiny speed up.
2008-02-02Don't memzero() the history buffer when initializing LZLasse Collin1-4/+3
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.
2008-02-01Do uncompressed size validation in raw encoder. This wayLasse Collin1-17/+73
it gets done for not only raw encoder, but also Block and LZMA_Alone encoders.
2008-02-01Avoid unneeded function call in raw_common.c.Lasse Collin1-9/+11
2008-01-26Added note.GNU-stack to x86 assembler files. It is neededLasse Collin2-0/+18
when using non-executable stack.
2008-01-26Added api/lzma/easy.h. I had forgot to add this to theLasse Collin1-0/+174
git repo. Thanks to Stephan Kulow.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 17:37:05 +0000