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
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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
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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
03e0e8a0d7
Added autoconf check to detect if we can use arithmetic
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right shift for optimizations.
2008-03-22 14:18:29 +02:00
Lasse Collin
7521bbdc83
Update a comment to use the variable name rep_len_decoder.
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(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
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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
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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
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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
d4d7feb83d
Updated THANKS.
2008-03-10 13:47:17 +02:00
Lasse Collin
0541c5ea63
Initialize align_price_count and match_price_count in
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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
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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
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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.
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These are already checked elsewhere, so omitting these
gives (very) tiny speed up.
2008-02-28 10:24:31 +02:00
Lasse Collin
de74858062
Tiny clean up to file-format.txt.
2008-02-06 13:25:32 +02:00
Lasse Collin
1a3b218598
Don't memzero() the history buffer when initializing LZ
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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
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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
b596fac963
Updated THANKS.
2008-01-26 21:42:38 +02:00
Lasse Collin
e9f6e9c075
Added note.GNU-stack to x86 assembler files. It is needed
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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
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git repo. Thanks to Stephan Kulow.
2008-01-26 19:12:50 +02:00
Lasse Collin
288b232f54
Added more test files.
2008-01-26 11:09:17 +02:00
Lasse Collin
c467b0defc
Added more test files.
2008-01-26 10:47:55 +02:00
Lasse Collin
f9842f7127
Return LZMA_HEADER_ERROR if LZMA_SYNC_FLUSH is used with any
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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
e988ea1d1a
Added more Multi-Block test files. Improved some
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descriptions in the test files' README.
2008-01-25 23:50:35 +02:00
Lasse Collin
4441e00418
Combine lzma_options_block validation needed by both Block
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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
bf4200c818
Added test_memlimit.c.
2008-01-25 19:21:22 +02:00
Lasse Collin
7b8fc7e6b5
Improved the memory limitter:
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- 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
e0c3d0043d
Use more parenthesis in succeed() macro in tests/tests.h.
2008-01-25 13:55:52 +02:00
Lasse Collin
1fd76d4881
Added more Multi-Block Stream test files.
2008-01-24 14:49:34 +02:00
Lasse Collin
6e27b1098a
Added bunch of test files containing Multi-Block Streams.
2008-01-24 00:46:05 +02:00
Lasse Collin
db9df0a960
Fix decoding of empty Metadata Blocks, that don't have
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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.
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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
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already documents.
2008-01-23 22:02:38 +02:00
Lasse Collin
ed40dc5a2c
Added debug/full_flush.c.
2008-01-23 21:21:21 +02:00
Lasse Collin
ae0cd09a66
Return LZMA_STREAM_END instead of LZMA_OK if
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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
0e80ded13d
Added bad-single-none-footer_filter_flags.lzma and
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bad-single-none-too_long_vli.lzma.
2008-01-23 20:05:01 +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
