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LZ4F_compressFrame : fix potential crash on selecting custom preferences

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frame fuzzer tests : new random tests using LZ4F_compressFrame
This commit is contained in:
Yann Collet 2014-09-22 02:59:42 +01:00
parent 0e6151b137
commit 6e1049872a
2 changed files with 9 additions and 1 deletions
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2
lz4frame.c
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@ -262,7 +262,7 @@ size_t LZ4F_compressFrame(void* dstBuffer, size_t dstMaxSize, const void* srcBuf
cctxI.version = LZ4F_VERSION;
cctxI.maxBufferSize = 64 KB; /* mess with real buffer size to prevent allocation; works because autoflush==1 & stableSrc==1 */
cctxI.maxBufferSize = 5 MB; /* mess with real buffer size to prevent allocation; works because autoflush==1 & stableSrc==1 */
if (preferencesPtr!=NULL) prefs = *preferencesPtr;
{

8
programs/frametest.c
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@ -426,6 +426,14 @@ int fuzzerTests(U32 seed, unsigned nbTests, unsigned startTest, double compressi
DISPLAYUPDATE(2, "\r%5i ", testNb);
crcOrig = XXH64((BYTE*)srcBuffer+srcStart, srcSize, 1);
if ((FUZ_rand(&randState)&0xF) == 2)
{
LZ4F_preferences_t* framePrefs = &prefs;
if ((FUZ_rand(&randState)&7) == 1) framePrefs = NULL;
cSize = LZ4F_compressFrame(compressedBuffer, LZ4F_compressFrameBound(srcSize, framePrefs), srcBuffer + srcStart, srcSize, framePrefs);
CHECK(LZ4F_isError(cSize), "LZ4F_compressFrame failed : error %i (%s)", (int)cSize, LZ4F_getErrorName(cSize));
}
else
{
const BYTE* ip = (const BYTE*)srcBuffer + srcStart;
const BYTE* const iend = ip + srcSize;