ddidderr/zstd-rs
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Fixed sanitizer warning

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This commit is contained in:
Yann Collet
2015-10-19 15:32:47 +01:00
parent 4d1a0ef515
commit 1fbee1f483
1 changed files with 7 additions and 5 deletions
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lib/zstd.c
+7 -5
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@@ -114,7 +114,7 @@ static const U32 g_searchStrength = 8;
#define Offbits 5 #define Offbits 5
#define MaxML ((1<<MLbits )-1) #define MaxML ((1<<MLbits )-1)
#define MaxLL ((1<<LLbits )-1) #define MaxLL ((1<<LLbits )-1)
#define MaxOff 26 #define MaxOff 31
#define LitFSELog 11 #define LitFSELog 11
#define MLFSELog 10 #define MLFSELog 10
#define LLFSELog 10 #define LLFSELog 10
@@ -1187,8 +1187,9 @@ size_t ZSTD_decodeSeqHeaders(int* nbSeq, const BYTE** dumpsPtr, size_t* dumpsLen
U32 max; U32 max;
case bt_rle : case bt_rle :
Offlog = 0; Offlog = 0;
if (ip > iend-2) return ERROR(srcSize_wrong); /* min : "raw", hence no header, but at least xxLog bits */ if (ip > iend-2) return ERROR(srcSize_wrong); /* min : "raw", hence no header, but at least xxLog bits */
FSE_buildDTable_rle(DTableOffb, *ip++); break; FSE_buildDTable_rle(DTableOffb, *ip++ & MaxOff); /* if *ip > MaxOff, data is corrupted */
break;
case bt_raw : case bt_raw :
Offlog = Offbits; Offlog = Offbits;
FSE_buildDTable_raw(DTableOffb, Offbits); break; FSE_buildDTable_raw(DTableOffb, Offbits); break;
@@ -1269,9 +1270,10 @@ static void ZSTD_decodeSequence(seq_t* seq, seqState_t* seqState)
/* Offset */ /* Offset */
{ {
static const size_t offsetPrefix[MaxOff+1] = { 1, 1, 2, 4, 8, 16, 32, 64, 128, 256, static const size_t offsetPrefix[MaxOff+1] = { /* note : size_t faster than U32 */
1 /*fake*/, 1, 2, 4, 8, 16, 32, 64, 128, 256,
512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144,
524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432 }; 524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432, /*fake*/ 1, 1, 1, 1, 1 };
U32 offsetCode, nbBits; U32 offsetCode, nbBits;
offsetCode = FSE_decodeSymbol(&(seqState->stateOffb), &(seqState->DStream)); /* <= maxOff, by table construction */ offsetCode = FSE_decodeSymbol(&(seqState->stateOffb), &(seqState->DStream)); /* <= maxOff, by table construction */
if (MEM_32bits()) BIT_reloadDStream(&(seqState->DStream)); if (MEM_32bits()) BIT_reloadDStream(&(seqState->DStream));