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Make ZSTD_compress_usingCDict() respect contentSizeFlag

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This commit is contained in:
Nick Terrell 2017-04-03 21:00:44 -07:00
parent 62ecad3819
commit 39a6cc5172
2 changed files with 35 additions and 0 deletions
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2
lib/compress/zstd_compress.c
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@ -2921,6 +2921,8 @@ size_t ZSTD_compress_usingCDict(ZSTD_CCtx* cctx,
if (cdict->refContext->params.fParams.contentSizeFlag==1) {
cctx->params.fParams.contentSizeFlag = 1;
cctx->frameContentSize = srcSize;
} else {
cctx->params.fParams.contentSizeFlag = 0;
}
return ZSTD_compressEnd(cctx, dst, dstCapacity, src, srcSize);

33
tests/fuzzer.c
View File

@ -404,6 +404,39 @@ static int basicUnitTests(U32 seed, double compressibility)
if (r != CNBuffSize) goto _output_error);
DISPLAYLEVEL(4, "OK \n");
DISPLAYLEVEL(4, "test%3i : compress with preprocessed dictionary : ", testNb++);
{ ZSTD_parameters params = ZSTD_getParams(1, CNBuffSize, dictSize);
params.fParams.contentSizeFlag = 0;
{ ZSTD_customMem customMem = { NULL, NULL, NULL };
ZSTD_CDict* cdict = ZSTD_createCDict_advanced(dictBuffer, dictSize, 1, params, customMem);
cSize = ZSTD_compress_usingCDict(cctx, compressedBuffer, ZSTD_compressBound(CNBuffSize),
CNBuffer, CNBuffSize, cdict);
ZSTD_freeCDict(cdict);
if (ZSTD_isError(cSize)) goto _output_error;
}
}
DISPLAYLEVEL(4, "OK (%u bytes : %.2f%%)\n", (U32)cSize, (double)cSize/CNBuffSize*100);
DISPLAYLEVEL(4, "test%3i : retrieve dictID from frame : ", testNb++);
{ U32 const did = ZSTD_getDictID_fromFrame(compressedBuffer, cSize);
if (did != dictID) goto _output_error; /* non-conformant (content-only) dictionary */
}
DISPLAYLEVEL(4, "OK \n");
DISPLAYLEVEL(4, "test%3i : frame should not have content size : ", testNb++);
{ unsigned long long const contentSize = ZSTD_findDecompressedSize(compressedBuffer, cSize);
if (contentSize != ZSTD_CONTENTSIZE_UNKNOWN) goto _output_error; /* cdict contentSizeFlag not used */
}
DISPLAYLEVEL(4, "OK \n");
DISPLAYLEVEL(4, "test%3i : frame built with dictionary should be decompressible : ", testNb++);
CHECKPLUS(r, ZSTD_decompress_usingDict(dctx,
decodedBuffer, CNBuffSize,
compressedBuffer, cSize,
dictBuffer, dictSize),
if (r != CNBuffSize) goto _output_error);
DISPLAYLEVEL(4, "OK \n");
DISPLAYLEVEL(4, "test%3i : compress without dictID : ", testNb++);
{ ZSTD_parameters p = ZSTD_getParams(3, CNBuffSize, dictSize);
p.fParams.noDictIDFlag = 1;