AuroraMiddleware/zstd
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Merge pull request #2088 from bimbashrestha/bug

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[bug] Making compressStream2 fail when passing rawContent but claiming fullDict
This commit is contained in:
Bimba Shrestha 2020-04-23 14:16:56 -05:00 committed by GitHub
commit 6b4a3e019f
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 36 additions and 1 deletions
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2
lib/compress/zstd_compress.c
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@ -3965,7 +3965,7 @@ size_t ZSTD_compressStream2( ZSTD_CCtx* cctx,
DEBUGLOG(4, "call ZSTDMT_initCStream_internal as nbWorkers=%u", params.nbWorkers);
FORWARD_IF_ERROR( ZSTDMT_initCStream_internal(
cctx->mtctx,
prefixDict.dict, prefixDict.dictSize, ZSTD_dct_rawContent,
prefixDict.dict, prefixDict.dictSize, prefixDict.dictContentType,
cctx->cdict, params, cctx->pledgedSrcSizePlusOne-1) );
cctx->streamStage = zcss_load;
cctx->appliedParams.nbWorkers = params.nbWorkers;

35
tests/fuzzer.c
View File

@ -2532,6 +2532,41 @@ static int basicUnitTests(U32 const seed, double compressibility)
FSE_normalizeCount(norm, tableLog, count, nbSeq, maxSymbolValue);
}
DISPLAYLEVEL(3, "OK \n");
#ifdef ZSTD_MULTITHREAD
DISPLAYLEVEL(3, "test%3i passing wrong full dict should fail on compressStream2 refPrefix ", testNb++);
{
ZSTD_CCtx* cctx = ZSTD_createCCtx();
/* A little more than ZSTDMT_JOBSIZE_MIN */
size_t const srcSize = 1 MB + 5;
size_t const dstSize = ZSTD_compressBound(srcSize);
void* const src = CNBuffer;
void* const dst = compressedBuffer;
void* dict = (void*)malloc(srcSize);
RDG_genBuffer(src, srcSize, compressibility, 0.5, seed);
RDG_genBuffer(dict, srcSize, compressibility, 0., seed);
/* Make sure there is no ZSTD_MAGIC_NUMBER */
memset(dict, 0, sizeof(U32));
/* something more than 1 */
CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_nbWorkers, 2));
/* lie and claim this is a full dict */
CHECK_Z(ZSTD_CCtx_refPrefix_advanced(cctx, dict, srcSize, ZSTD_dct_fullDict));
{
ZSTD_outBuffer out = {dst, dstSize, 0};
ZSTD_inBuffer in = {src, srcSize, 0};
/* should fail because its not a full dict like we said it was */
assert(ZSTD_isError(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_flush)));
}
ZSTD_freeCCtx(cctx);
free(dict);
}
DISPLAYLEVEL(3, "OK \n");
#endif
DISPLAYLEVEL(3, "test%3i : table cleanliness through index reduction : ", testNb++);
{