lib/zstd
1
0
Fork 0
mirror of https://github.com/facebook/zstd.git synced 2025-08-01 09:47:01 +03:00
Code Activity

validated external dictionary

Browse Source
This commit is contained in:
Yann Collet
2015-12-06 13:18:37 +01:00
parent e47c4e5f8e
commit 4bfe415fa7
2 changed files with 16 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
programs/fuzzer.c
View File

@ -309,6 +309,8 @@ int fuzzerTests(U32 seed, U32 nbTests, unsigned startTest, double compressibilit
U64 crcOrig, crcDest;
int cLevel;
BYTE* sampleBuffer;
const BYTE* dict;
size_t dictSize;
/* init */
if (nbTests >= testNb)
@ -451,8 +453,18 @@ int fuzzerTests(U32 seed, U32 nbTests, unsigned startTest, double compressibilit
maxTestSize = (size_t)1 << sampleSizeLog;
maxTestSize += FUZ_rand(&lseed) & (maxTestSize-1);
if (maxTestSize >= dstBufferSize) maxTestSize = dstBufferSize-1;
totalTestSize = 0;
sampleSizeLog = FUZ_rand(&lseed) % maxSampleLog;
sampleSize = (size_t)1 << sampleSizeLog;
sampleSize += FUZ_rand(&lseed) & (sampleSize-1);
sampleStart = FUZ_rand(&lseed) % (srcBufferSize - sampleSize);
dict = srcBuffer + sampleStart;
dictSize = sampleSize;
cSize = ZSTD_compressBegin(ctx, cBuffer, cBufferSize, (FUZ_rand(&lseed) % (20 - (sampleSizeLog/3))) + 1);
errorCode = ZSTD_compress_insertDictionary(ctx, dict, dictSize);
CHECK (ZSTD_isError(errorCode), "dictionary insertion error : %s", ZSTD_getErrorName(errorCode));
totalTestSize = 0;
for (n=0; n<nbChunks; n++)
{
sampleSizeLog = FUZ_rand(&lseed) % maxSampleLog;
@ -481,6 +493,7 @@ int fuzzerTests(U32 seed, U32 nbTests, unsigned startTest, double compressibilit
/* streaming decompression test */
errorCode = ZSTD_resetDCtx(dctx);
CHECK (ZSTD_isError(errorCode), "cannot init DCtx : %s", ZSTD_getErrorName(errorCode));
ZSTD_decompress_insertDictionary(dctx, dict, dictSize);
totalCSize = 0;
totalGenSize = 0;
while (totalCSize < cSize)