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fuzzer: changed internal buffer size

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to ensure no overflow during unit tests
This commit is contained in:
Yann Collet 2019-05-29 13:33:55 -07:00
parent 45eba5b030
commit b2ba857a4f
1 changed files with 10 additions and 9 deletions
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19
tests/fuzzer.c
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@ -965,7 +965,7 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
}
#define testInputSize (192 KB)
#define testInputSize (196 KB)
#define testCompressedSize (130 KB)
#define ringBufferSize (8 KB)
@ -1175,12 +1175,12 @@ static void FUZ_unitTests(int compressionLevel)
{ U64 const crc64 = XXH64(testInput + 64 KB, testCompressedSize, 0);
LZ4_resetStreamHC_fast(&sHC, compressionLevel);
LZ4_loadDictHC(&sHC, testInput, 64 KB);
result = LZ4_compress_HC_continue(&sHC, testInput + 64 KB, testCompressed, testCompressedSize, testCompressedSize-1);
FUZ_CHECKTEST(result==0, "LZ4_compressHC_limitedOutput_continue() dictionary compression failed : result = %i", result);
FUZ_CHECKTEST(sHC.internal_donotuse.dirty, "Context should be clean");
result = LZ4_decompress_safe_usingDict(testCompressed, testVerify, result, testCompressedSize, testInput, 64 KB);
FUZ_CHECKTEST(result!=(int)testCompressedSize, "LZ4_decompress_safe() simple dictionary decompression test failed");
{ int const cSize = LZ4_compress_HC_continue(&sHC, testInput + 64 KB, testCompressed, testCompressedSize, testCompressedSize-1);
FUZ_CHECKTEST(cSize==0, "LZ4_compressHC_limitedOutput_continue() dictionary compression failed : @return = %i", cSize);
FUZ_CHECKTEST(sHC.internal_donotuse.dirty, "Context should be clean");
{ int const dSize = LZ4_decompress_safe_usingDict(testCompressed, testVerify, cSize, testCompressedSize, testInput, 64 KB);
FUZ_CHECKTEST(dSize!=(int)testCompressedSize, "LZ4_decompress_safe() simple dictionary decompression test failed");
} }
{ U64 const crcNew = XXH64(testVerify, testCompressedSize, 0);
FUZ_CHECKTEST(crc64!=crcNew, "LZ4_decompress_safe() simple dictionary decompression test : corruption");
} }
@ -1189,7 +1189,8 @@ static void FUZ_unitTests(int compressionLevel)
/* multiple HC compression test with dictionary */
{ int result1, result2;
int segSize = testCompressedSize / 2;
U64 const crc64 = XXH64(testInput + segSize, testCompressedSize, 0);
XXH64_hash_t const crc64 = ( (void)assert((unsigned)segSize + testCompressedSize < testInputSize) ,
XXH64(testInput + segSize, testCompressedSize, 0) );
LZ4_resetStreamHC_fast(&sHC, compressionLevel);
LZ4_loadDictHC(&sHC, testInput, segSize);
result1 = LZ4_compress_HC_continue(&sHC, testInput + segSize, testCompressed, segSize, segSize -1);
@ -1203,7 +1204,7 @@ static void FUZ_unitTests(int compressionLevel)
FUZ_CHECKTEST(result!=segSize, "LZ4_decompress_safe() dictionary decompression part 1 failed");
result = LZ4_decompress_safe_usingDict(testCompressed+result1, testVerify+segSize, result2, segSize, testInput, 2*segSize);
FUZ_CHECKTEST(result!=segSize, "LZ4_decompress_safe() dictionary decompression part 2 failed");
{ U64 const crcNew = XXH64(testVerify, testCompressedSize, 0);
{ XXH64_hash_t const crcNew = XXH64(testVerify, testCompressedSize, 0);
FUZ_CHECKTEST(crc64!=crcNew, "LZ4_decompress_safe() dictionary decompression corruption");
} }