VOL-2112 move to voltha-lib-go
Change-Id: Ic1af08003c1d2c698c0cce371e64f47b47b8d875
diff --git a/vendor/github.com/DataDog/zstd/zstd_v06.c b/vendor/github.com/DataDog/zstd/zstd_v06.c
index 8b068b3..f907a3a 100644
--- a/vendor/github.com/DataDog/zstd/zstd_v06.c
+++ b/vendor/github.com/DataDog/zstd/zstd_v06.c
@@ -506,6 +506,8 @@
#define FSEv06_ENCODING_STATIC 2
#define FSEv06_ENCODING_DYNAMIC 3
+#define ZSTD_CONTENTSIZE_ERROR (0ULL - 2)
+
static const U32 LL_bits[MaxLL+1] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1, 1, 1, 1, 2, 2, 3, 3, 4, 6, 7, 8, 9,10,11,12,
13,14,15,16 };
@@ -1250,9 +1252,7 @@
/* **************************************************************
* HUF Error Management
****************************************************************/
-unsigned HUFv06_isError(size_t code) { return ERR_isError(code); }
-
-const char* HUFv06_getErrorName(size_t code) { return ERR_getErrorName(code); }
+static unsigned HUFv06_isError(size_t code) { return ERR_isError(code); }
/*-**************************************************************
@@ -2823,7 +2823,8 @@
BYTE headerBuffer[ZSTDv06_FRAMEHEADERSIZE_MAX];
}; /* typedef'd to ZSTDv06_DCtx within "zstd_static.h" */
-size_t ZSTDv06_sizeofDCtx (void) { return sizeof(ZSTDv06_DCtx); } /* non published interface */
+size_t ZSTDv06_sizeofDCtx (void); /* Hidden declaration */
+size_t ZSTDv06_sizeofDCtx (void) { return sizeof(ZSTDv06_DCtx); }
size_t ZSTDv06_decompressBegin(ZSTDv06_DCtx* dctx)
{
@@ -3022,7 +3023,7 @@
/*! ZSTDv06_getcBlockSize() :
* Provides the size of compressed block from block header `src` */
-size_t ZSTDv06_getcBlockSize(const void* src, size_t srcSize, blockProperties_t* bpPtr)
+static size_t ZSTDv06_getcBlockSize(const void* src, size_t srcSize, blockProperties_t* bpPtr)
{
const BYTE* const in = (const BYTE* const)src;
U32 cSize;
@@ -3041,6 +3042,7 @@
static size_t ZSTDv06_copyRawBlock(void* dst, size_t dstCapacity, const void* src, size_t srcSize)
{
+ if (dst==NULL) return ERROR(dstSize_tooSmall);
if (srcSize > dstCapacity) return ERROR(dstSize_tooSmall);
memcpy(dst, src, srcSize);
return srcSize;
@@ -3049,7 +3051,7 @@
/*! ZSTDv06_decodeLiteralsBlock() :
@return : nb of bytes read from src (< srcSize ) */
-size_t ZSTDv06_decodeLiteralsBlock(ZSTDv06_DCtx* dctx,
+static size_t ZSTDv06_decodeLiteralsBlock(ZSTDv06_DCtx* dctx,
const void* src, size_t srcSize) /* note : srcSize < BLOCKSIZE */
{
const BYTE* const istart = (const BYTE*) src;
@@ -3183,7 +3185,7 @@
@return : nb bytes read from src,
or an error code if it fails, testable with ZSTDv06_isError()
*/
-size_t ZSTDv06_buildSeqTable(FSEv06_DTable* DTable, U32 type, U32 max, U32 maxLog,
+static size_t ZSTDv06_buildSeqTable(FSEv06_DTable* DTable, U32 type, U32 max, U32 maxLog,
const void* src, size_t srcSize,
const S16* defaultNorm, U32 defaultLog, U32 flagRepeatTable)
{
@@ -3213,7 +3215,7 @@
}
-size_t ZSTDv06_decodeSeqHeaders(int* nbSeqPtr,
+static size_t ZSTDv06_decodeSeqHeaders(int* nbSeqPtr,
FSEv06_DTable* DTableLL, FSEv06_DTable* DTableML, FSEv06_DTable* DTableOffb, U32 flagRepeatTable,
const void* src, size_t srcSize)
{
@@ -3240,14 +3242,12 @@
}
/* FSE table descriptors */
+ if (ip + 4 > iend) return ERROR(srcSize_wrong); /* min : header byte + all 3 are "raw", hence no header, but at least xxLog bits per type */
{ U32 const LLtype = *ip >> 6;
U32 const Offtype = (*ip >> 4) & 3;
U32 const MLtype = (*ip >> 2) & 3;
ip++;
- /* check */
- if (ip > iend-3) return ERROR(srcSize_wrong); /* min : all 3 are "raw", hence no header, but at least xxLog bits per type */
-
/* Build DTables */
{ size_t const bhSize = ZSTDv06_buildSeqTable(DTableLL, LLtype, MaxLL, LLFSELog, ip, iend-ip, LL_defaultNorm, LL_defaultNormLog, flagRepeatTable);
if (ZSTDv06_isError(bhSize)) return ERROR(corruption_detected);
@@ -3358,7 +3358,7 @@
}
-size_t ZSTDv06_execSequence(BYTE* op,
+static size_t ZSTDv06_execSequence(BYTE* op,
BYTE* const oend, seq_t sequence,
const BYTE** litPtr, const BYTE* const litLimit,
const BYTE* const base, const BYTE* const vBase, const BYTE* const dictEnd)
@@ -3406,7 +3406,7 @@
if (sequence.offset < 8) {
/* close range match, overlap */
static const U32 dec32table[] = { 0, 1, 2, 1, 4, 4, 4, 4 }; /* added */
- static const int dec64table[] = { 8, 8, 8, 7, 8, 9,10,11 }; /* substracted */
+ static const int dec64table[] = { 8, 8, 8, 7, 8, 9,10,11 }; /* subtracted */
int const sub2 = dec64table[sequence.offset];
op[0] = match[0];
op[1] = match[1];
@@ -3654,36 +3654,62 @@
#endif
}
-size_t ZSTDv06_findFrameCompressedSize(const void* src, size_t srcSize)
+/* ZSTD_errorFrameSizeInfoLegacy() :
+ assumes `cSize` and `dBound` are _not_ NULL */
+static void ZSTD_errorFrameSizeInfoLegacy(size_t* cSize, unsigned long long* dBound, size_t ret)
+{
+ *cSize = ret;
+ *dBound = ZSTD_CONTENTSIZE_ERROR;
+}
+
+void ZSTDv06_findFrameSizeInfoLegacy(const void *src, size_t srcSize, size_t* cSize, unsigned long long* dBound)
{
const BYTE* ip = (const BYTE*)src;
size_t remainingSize = srcSize;
+ size_t nbBlocks = 0;
blockProperties_t blockProperties = { bt_compressed, 0 };
/* Frame Header */
- { size_t const frameHeaderSize = ZSTDv06_frameHeaderSize(src, ZSTDv06_frameHeaderSize_min);
- if (ZSTDv06_isError(frameHeaderSize)) return frameHeaderSize;
- if (MEM_readLE32(src) != ZSTDv06_MAGICNUMBER) return ERROR(prefix_unknown);
- if (srcSize < frameHeaderSize+ZSTDv06_blockHeaderSize) return ERROR(srcSize_wrong);
+ { size_t const frameHeaderSize = ZSTDv06_frameHeaderSize(src, srcSize);
+ if (ZSTDv06_isError(frameHeaderSize)) {
+ ZSTD_errorFrameSizeInfoLegacy(cSize, dBound, frameHeaderSize);
+ return;
+ }
+ if (MEM_readLE32(src) != ZSTDv06_MAGICNUMBER) {
+ ZSTD_errorFrameSizeInfoLegacy(cSize, dBound, ERROR(prefix_unknown));
+ return;
+ }
+ if (srcSize < frameHeaderSize+ZSTDv06_blockHeaderSize) {
+ ZSTD_errorFrameSizeInfoLegacy(cSize, dBound, ERROR(srcSize_wrong));
+ return;
+ }
ip += frameHeaderSize; remainingSize -= frameHeaderSize;
}
/* Loop on each block */
while (1) {
size_t const cBlockSize = ZSTDv06_getcBlockSize(ip, remainingSize, &blockProperties);
- if (ZSTDv06_isError(cBlockSize)) return cBlockSize;
+ if (ZSTDv06_isError(cBlockSize)) {
+ ZSTD_errorFrameSizeInfoLegacy(cSize, dBound, cBlockSize);
+ return;
+ }
ip += ZSTDv06_blockHeaderSize;
remainingSize -= ZSTDv06_blockHeaderSize;
- if (cBlockSize > remainingSize) return ERROR(srcSize_wrong);
+ if (cBlockSize > remainingSize) {
+ ZSTD_errorFrameSizeInfoLegacy(cSize, dBound, ERROR(srcSize_wrong));
+ return;
+ }
if (cBlockSize == 0) break; /* bt_end */
ip += cBlockSize;
remainingSize -= cBlockSize;
+ nbBlocks++;
}
- return ip - (const BYTE*)src;
+ *cSize = ip - (const BYTE*)src;
+ *dBound = nbBlocks * ZSTDv06_BLOCKSIZE_MAX;
}
/*_******************************
@@ -4006,7 +4032,7 @@
if (ZSTDv06_isError(hSize)) return hSize;
if (toLoad > (size_t)(iend-ip)) { /* not enough input to load full header */
memcpy(zbd->headerBuffer + zbd->lhSize, ip, iend-ip);
- zbd->lhSize += iend-ip; ip = iend; notDone = 0;
+ zbd->lhSize += iend-ip;
*dstCapacityPtr = 0;
return (hSize - zbd->lhSize) + ZSTDv06_blockHeaderSize; /* remaining header bytes + next block header */
}