AuroraMiddleware/zstd
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Author SHA1 Message Date
Yann Collet
9416195221 changed error code when pos<=size condition is not respected 
Now pointing towards src_size or dst_size,
instead of error_GENERIC.
 2017-09-27 10:35:56 -07:00
Yann Collet
d56a350402 removed unsupported formats 2017-09-27 10:29:31 -07:00
Yann Collet
bfabd1d4dc fixed zstreamtest decoding error 
same error (wrong output buffer size) was present
on --mt and --new_api tests.
 2017-09-27 01:01:11 -07:00
Yann Collet
ca306c1c84 fixed a bug in zstreamtest 
decoder output buffer would receive a wrong size.

In previous version, ZSTD_decompressStream() would blindly trust the caller that pos <= size.
In this version, this condition is actively checked,
and the function returns an error code if this condition is not respected.

This check could also be done with an assert(),
but since this is a user-facing interface, it seems better to keep this check at runtime.
 2017-09-27 00:39:41 -07:00
Yann Collet
cd53ac831b fixed DCtx initialization error 
now relying on initialization of dctx->format first
 2017-09-26 18:26:09 -07:00
Yann Collet
4791561c4a silence minor gcc warning -Wempty-body 
also silence fuzz test artefacts
 2017-09-26 17:57:38 -07:00
Yann Collet
91ffe71ec8 Merge pull request #864 from terrelln/long 
Increase maximum window size
 2017-09-26 16:26:29 -07:00
Yann Collet
c0dd960363 switch assert() position 2017-09-26 15:36:57 -07:00
Yann Collet
319c699991 created ZSTD_startingInputLength() 
as suggested by @terrelln
 2017-09-26 15:36:14 -07:00
Yann Collet
8d1e97ea9c minor fixes following @terrelln comments 2017-09-26 15:06:30 -07:00
Yann Collet
bfbec3c1ae Merge pull request #867 from terrelln/fast-fuzz 
[fuzz] Speed up round trip tests
 2017-09-26 14:57:24 -07:00
Yann Collet
df4e9bba25 fixed constant errors for gcc in c99 mode 
C standard does not consider a `static const int` as a constant.
This is a problem for initializer, and ZSTD_STATIC_ASSERT().
Replaced by macro values
 2017-09-26 14:31:06 -07:00
Yann Collet
9f0b8dfbe9 Merge branch 'dev' into newFormats 2017-09-26 14:22:39 -07:00
Nick Terrell
471aa385b3 [fuzz] Speed up round trip tests 
* Enforce smaller maximum values for parameters
* Adjust parameters to the source size

The memory usage is reduced by about 5x, which makes the fuzzers run at
least twice as fast, even more so with ASAN/MSAN enabled.
 2017-09-26 14:03:43 -07:00
Nick Terrell
c233bdbaee Increase maximum window size 
* Maximum window size in 32-bit mode is 1GB, since allocations for 2GB fail
  on my Mac.
* Maximum window size in 64-bit mode is 2GB, since that is the largest
  power of 2 that works with the overflow prevention.
* Allow `--long=windowLog` to set the window log, along with
  `--zstd=wlog=#`. These options also set the window size during
  decompression, but don't override `--memory=#` if it is set.
* Present a helpful error message when the window size is too large during
  decompression.
* The long range matcher defaults to a hash log 7 less than the window log,
  which keeps it at 20 for window log 27.
* Keep the default long range matcher window size and the default maximum
  window size at 27 for the API and CLI.
* Add tests that use the maximum window size and hash size for compression
  and decompression.
 2017-09-26 14:00:01 -07:00
Yann Collet
3095ca8c56 fixed minor conversion warnings for g++ on Linux 
U64 is not considered equivalent to unsigned long long
 2017-09-26 13:53:50 -07:00
Yann Collet
56f1f0e3dd write summary for --list on multiple files 2017-09-26 11:21:36 -07:00
Yann Collet
8a4d0abc1c Merge pull request #861 from terrelln/zip 
[fuzz][CI] Set up regression tests
 2017-09-25 17:11:35 -07:00
Yann Collet
586df82a78 Merge pull request #862 from terrelln/static 
[zstd] Backport kernel patch from @ColinIanKing
 2017-09-25 17:02:40 -07:00
Yann Collet
52a1d1c6dc added ZSTD_DCtx_reset() 2017-09-25 16:56:48 -07:00
Yann Collet
5d8fdd1641 Merge pull request #855 from terrelln/maxoff 
[libzstd] Increase MaxOff
 2017-09-25 16:34:29 -07:00
Nick Terrell
76cb38d085 [zstd] Backport kernel patch from @ColinIanKing 
* Make the U32 table in `FSE_normalizeCount()` static.
* Patch from https://lkml.kernel.org/r/20170922145946.14316-1-colin.king@canonical.com.
* Clang makes non-static tables static anyways. gcc however, does [weird things](https://godbolt.org/g/fvTcED).
* Benchmarks showed no difference in speed.
 2017-09-25 16:18:23 -07:00
Yann Collet
f2a913862c added ZSTD_decompress_generic_simpleArgs() 2017-09-25 15:46:34 -07:00
Yann Collet
6ee05a02b8 added ZSTD_decompress_generic() 
same as ZSTD_decompressStream(),
just for a similar feeling as the compression side, which uses ZSTD_compress_generic()
 2017-09-25 15:41:48 -07:00
Nick Terrell
917a213254 [fuzz] Determine flags based on compiler version 2017-09-25 15:32:36 -07:00
Nick Terrell
77d5bc2d62 [fuzz][CI] Add regression tests to the CI 2017-09-25 15:32:31 -07:00
Nick Terrell
11e21f23cb [fuzz] Mention the corpora in the README 2017-09-25 15:31:38 -07:00
Nick Terrell
6bb781e0f1 [fuzz] Add regressiontest targets 2017-09-25 15:31:33 -07:00
Yann Collet
b8d4a3887f introduced constant ZSTD_frameIdSize 
within zstd_internal.h
This is the size of magic number.

Avoids using `4` directly in source code, which is a bit less meaningful.
 2017-09-25 15:26:18 -07:00
Yann Collet
044fb4c057 implemented magic-less frame decoder 2017-09-25 15:12:09 -07:00
Yann Collet
62568c9a42 added capability to generate magic-less frames 
decoder not implemented yet
 2017-09-25 14:26:26 -07:00
Nick Terrell
bbe77212ef [libzstd] Increase MaxOff 2017-09-25 13:36:18 -07:00
Nick Terrell
bfad5568b5 [fuzz] Make simple_round_trip compile cleanly 2017-09-25 13:28:45 -07:00
Nick Terrell
23199b6daf [fuzz] Fix fuzz.py env flags parsing 2017-09-25 13:28:18 -07:00
Nick Terrell
1c23b64049 [fuzz] fuzz.py can minimize and zip corpora 
* "minimize" minimizes the corpora into an output directory.
* "zip" zips up the minimized corpora, which are ready to deploy.
 2017-09-25 12:04:12 -07:00
Yann Collet
96f0cde31a minor function rename 
ZSTD_estimateCStreamSize_advanced_usingCParams -> ZSTD_estimateCStreamSize_usingCParams
_usingX is clear.
_advanced feels redundant
 2017-09-24 16:47:02 -07:00
Yann Collet
7c3dea42ce added prototypes for advanced parameters for decompression API 
required to decode custom formats
 2017-09-24 15:57:29 -07:00
Yann Collet
e60f48c549 Merge branch 'dev' into newFormats 2017-09-24 14:33:37 -07:00
W. Felix Handte
360238733a Adds LZ4 support by default if LZ4 is available 
Simple makefile change + quick typename change

Test:

  make clean
  make
  # successfully produces binary without lz4 support

  make clean
  # with flags to pick up my lz4 build
  make MOREFLAGS="-L/home/felixh/prog/lz4/lib -I/home/felixh/prog/lz4/lib"
  # successfully produces binary with lz4 support

  echo "TEST TEST TEST THIS IS A TEST STRING PLEASE TEST THIS PLEASE OK THANK YOU" | \
    ./lz4/lz4 | \
    LD_LIBRARY_PATH=/home/felixh/prog/lz4/lib ./zstd/zstd -d
  # successfully prints TEST TEST TEST THIS IS A TEST STRING PLEASE TEST THIS PLEASE OK THANK YOU
 2017-09-22 13:28:56 -07:00
Yann Collet
8977224b9b Merge pull request #859 from terrelln/31 
Prepare for ZSTD_WINDOWLOG_MAX == 31
 2017-09-22 09:01:39 -07:00
Yann Collet
14946af10c Merge pull request #858 from facebook/controlSize 
added control of frame content size at end of decompression
 2017-09-21 17:24:43 -07:00
Nick Terrell
d6abb28951 Prepare for ZSTD_WINDOWLOG_MAX == 31 2017-09-21 17:18:41 -07:00
Yann Collet
cd3115b284 added control from frame content size at end of decompression 
adding check at end of single-pass ZSTD_decompressFrame().
Check within ZSTD_decompressContinue() was already added in a previous patch : b3f33ccfb3
 2017-09-21 16:21:10 -07:00
Yann Collet
645563583e Merge branch 'dev' into newFormats 2017-09-21 16:08:06 -07:00
Yann Collet
f97c2dbd39 created ZSTD_format declaration 2017-09-21 16:07:29 -07:00
Yann Collet
da74aabc00 Merge pull request #850 from terrelln/fse-optimal 
[fse] Fix FSE_optimalTableLog() for srcSize==1
 2017-09-19 14:59:21 -07:00
Yann Collet
c399ab4804 Merge pull request #849 from terrelln/30 
[bitstream] Allow adding 31 bits at a time
 2017-09-19 14:25:10 -07:00
Yann Collet
a361e9af08 Merge pull request #857 from terrelln/bad-assert 
Fix minor fuzz test failures
 2017-09-19 14:22:08 -07:00
Nick Terrell
74718d7e43 [bitstream] Allow adding 31 bits at a time 2017-09-19 13:57:33 -07:00
Nick Terrell
6c9ed76676 [ldm] Fix corner case where minMatch < 8 
There is a potential read buffer overflow when minMatch < 8.

fix-fuzz-failure
 2017-09-19 13:49:37 -07:00