AuroraMiddleware/lz4
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
2,050 Commits 13 Branches 31 Tags 6.8 MiB
723ba904e2
Commit Graph

65 Commits

Author SHA1 Message Date
Yann Collet
d8d5f14138 fixed loadDictHC 
by making a full initialization
instead of a fast reset.
 2019-04-09 15:37:59 -07:00
Yann Collet
14c71dfa9c modified LZ4_initStreamHC() to look like LZ4_initStream() 
it is now a pure initializer, for statically allocated states.
It can initialize any memory area, and because of this, requires size.
 2019-04-09 13:55:42 -07:00
Yann Collet
2ece0d8380 created LZ4_initStream() 
- promoted LZ4_resetStream_fast() to stable
- moved LZ4_resetStream() into deprecate, but without triggering a compiler warning
- update all sources to no longer rely on LZ4_resetStream()

note : LZ4_initStream() proposal is slightly different :
it's able to initialize any buffer, provided that it's large enough.
To this end, it accepts a void*, and returns an LZ4_stream_t*.
 2019-04-05 12:56:26 -07:00
Yann Collet
2a94faf462 fixed _GNU_SOURCE duplicate 2019-04-05 11:55:34 -07:00
Yann Collet
a4f1635b0a fuzzer: fixed strict c99 with mmap+MAP_ANONYMOUS 2019-04-05 11:47:06 -07:00
Yann Collet
c491df54ec created LZ4_initStreamHC() 
- promoted LZ4_resetStreamHC_fast() to stable
- moved LZ4_resetStreamHC() to deprecated (but do not generate a warning yet)
- Updated doc, to highlight difference between init and reset
- switched all invocations of LZ4_resetStreamHC() onto LZ4_initStreamHC()
- misc: ensure `make all` also builds /tests
 2019-04-04 17:05:11 -07:00
Yann Collet
7a39fb8fb6 make _fast*() decoder generate a deprecation warning 
updated modification
 2019-04-04 12:47:36 -07:00
Yann Collet
186015a5d2 fixed strict C++ compilation 2019-01-09 13:45:42 -08:00
Yann Collet
baed01a9c7 fixed long sequence overflow test 2019-01-09 13:38:33 -08:00
Yann Collet
fbebf0345d minor explicit cast warning 2019-01-09 13:18:43 -08:00
Yann Collet
7741c60f98 add a test to check long sequences (#631) 
the test fails, as intended,
since #631 is not merged yet in this branch.
 2019-01-09 12:09:52 -08:00
Lzu Tao
b9d3080d75 clang: Fix -Wcast-qual 2018-12-02 20:30:25 +07:00
Lzu Tao
0241755dbf Fix clang warnings: -Wformat-pedantic and -Werror=overflow 2018-12-02 20:12:24 +07:00
Oleg Khabinov
f27ea0774e Adding information about dirty context for _HC_ family of functions 2018-10-10 10:33:04 -07:00
Oleg Khabinov
28eb88d988 Some followups and renamings 2018-10-01 15:19:45 -07:00
Oleg Khabinov
f2ae385c2f Rename initCheck to dirtyContext and use it in LZ4_resetStream_fast() to check if full reset is needed. 2018-09-28 14:55:05 -07:00
Yann Collet
b87a8e9e62 fixed minor warning in fuzzer.c 
added a few more comments and assert()
 2018-09-10 16:48:41 -07:00
Yann Collet
e22bb80074 fixed fuzzer test 
and removed one blind copy, since there is no more guarantee that at least 4 bytes are still available in output buffer
 2018-09-07 18:22:01 -07:00
Yann Collet
bf614d3c51 first sketch for a byte-accurate partial decoder 2018-09-07 15:44:19 -07:00
Yann Collet
30f6f34328 removed one assert() condition 
which is not correct when using LZ4_HC with dictionary and starting from a low address (<0x10000).
 2018-09-05 11:25:10 -07:00
Norm Green
ebe7e35601 Fix AIX 32 bit build problem of fuzzer.c 2018-06-01 11:52:22 -07:00
Yann Collet
999a8488f6 removed test that might be optimized away 
under UB rule "no overflow on int"
 2018-05-02 13:57:33 -07:00
Yann Collet
93cf628a08 introduce LZ4_decoderRingBufferSize() 
fuzzer : fix and robustify ring buffer tests
 2018-05-02 13:01:04 -07:00
Yann Collet
41ad238bf9
Merge pull request #515 from svpv/refactorDec 
lz4.c: refactor the decoding routines
 2018-04-29 07:41:35 -07:00
Alexey Tourbin
ce4e1389cc fuzzer.c: enabled ring buffer tests for decompress_fast 
Ring buffer tests were performed only with LZ4_decompress_safe_continue,
leaving my buggy changes to LZ4_decompress_safe_continue undetected.
The tests are now replicated and performed in a similar manner for both
LZ4_decompress_safe_continue and LZ4_decompress_safe_continue (except
for the small buffer case where only one function can be tested,
because part of the dictionary is overwritten with the output).

I also updated function names in the messages (changed them to the
actual ones).  The error was reported for LZ4_decompress_safe(),
which I found misleading.
 2018-04-27 07:27:10 +03:00
Yann Collet
b2637ab7b2
Merge pull request #512 from lz4/HC_dict 
In-place unmutable dictionaries for LZ4HC
 2018-04-24 13:18:40 -07:00
Nick Terrell
672799e814 Fix compilation error and assert. 2018-04-23 14:21:02 -07:00
Nick Terrell
bb83cad98f Fix input size validation edge cases 
The bug is a read up to 2 bytes past the end of the buffer.
There are three cases for this bug, one for each test case added.

* An empty input causes `token = *ip++` to read one byte too far.
* A one byte input with `(token >> ML_BITS) == RUN_MASK` causes
  one extra byte to be read without validation. This could be
  combined with the first bug to cause 2 extra bytes to be read.
* The case pointed out in issue #508, where `ip == iend` at the
  beginning of the loop after taking the shortcut.

Benchmarks show no regressions on clang or gcc-7 on both my mac
and devserver.

Fixes #508.
 2018-04-23 13:34:18 -07:00
W. Felix Handte
209c9c29d1 Add Some Simple Fuzzer Tests 2018-04-20 15:16:41 -04:00
Yann Collet
444211d259 edited a few traces for debugging 2018-04-16 17:16:08 -07:00
Yann Collet
4aff9b10b5 fixed fuzzer tests 
which were modified in parallel within branc `dev`
 2018-04-16 16:14:28 -07:00
Yann Collet
b5528ac86c Merge branch 'dev' into lowAddr 2018-04-16 16:12:38 -07:00
W. Felix Handte
9f0f6b89bb Further Test that ExtDictCtx Mode Produces the Exact Same Output 2018-04-13 11:50:52 -04:00
W. Felix Handte
6dd64e0776 Add Tests for LZ4_attach_dictionary and Friends 2018-04-13 11:50:52 -04:00
test4973
8af32ce6f7 modified a few traces for debug 2018-04-12 13:35:19 -07:00
test4973
ad7e040384 fix minor conversion warning 
cast from void not implicit for C++
 2018-04-09 20:38:00 -07:00
test4973
f9992fa37f noticed a bug when re-using hash table 
./fuzzer -vv -s4217 -t7518
 2018-04-05 19:09:24 -07:00
test4973
6d931b6a93 fixed lz4 compression starting at small address 
when using byU32 and byU16 modes
 2018-04-05 12:40:33 -07:00
test4973
c3f0ed28ff added low address fuzzer tests 2018-03-21 07:14:13 -07:00
Yann Collet
20e969e579 fuzzer: added low address compression test 
is expected to work on linux+gcc only.
 2018-02-05 15:19:00 -08:00
Yann Collet
7d2f30c7d1 lz4opt supports _destSize 
no longer limited to level 9
 2017-12-22 12:47:59 +01:00
Yann Collet
fdde4311fb /tests programs compiled with LZ4_DEBUG=1 
to enable assert() within /lib
 2017-12-22 11:54:43 +01:00
Yann Collet
1025546347 unified HC levels 
LZ4_setCompressionLevel() can be users accross the whole range of HC levels
No more transition issue between Optimal and HC modes
 2017-11-03 11:28:28 -07:00
Yann Collet
0d073d4d28 added extern C for lz4.h static section 
should make the file more compatible with C++ compiler, such as Visual or g++
 2017-03-17 15:11:09 -07:00
Yann Collet
aae447fffd LZ4_compress_HC_continue_destSize() works as intended up to level 10 
It's incompatible with btopt though,
so cLevel >= 11 feature much reduced performance (degraded mode)
 2017-03-16 15:41:30 -07:00
Yann Collet
cd35f0d98c LZ4_compress_HC_destSize() uses LZ4HC_compress_generic() code path 
Limits compression level to 10,
to remain compatible with Hash Chain.
 2017-03-16 15:10:38 -07:00
Yann Collet
430b7d32b3 created LZ4_HC_STATIC_LINKING_ONLY section 
where are exposed new prototypes *_destSize()
 2017-03-16 02:16:24 -07:00
remittor
66b26a389f tests: fuzzer: Add test for LZ4_compressHC_destSize 2017-03-08 11:13:28 +03:00
Przemyslaw Skibinski
d2b51c22d3 fuzzer: tests more compression levels 2016-12-28 17:47:10 +01:00
Przemyslaw Skibinski
1c80b9af4e LZ4HC_getSearchNum 2016-12-28 15:18:19 +01:00