diff options
Diffstat (limited to 'lib/legacy/zstd_v06.c')
| -rw-r--r-- | lib/legacy/zstd_v06.c | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/lib/legacy/zstd_v06.c b/lib/legacy/zstd_v06.c index 2a08e8dee842..c56f582772f8 100644 --- a/lib/legacy/zstd_v06.c +++ b/lib/legacy/zstd_v06.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2016-present, Yann Collet, Facebook, Inc. + * Copyright (c) 2016-2020, Yann Collet, Facebook, Inc. * All rights reserved. * * This source code is licensed under both the BSD-style license (found in the @@ -14,7 +14,7 @@ #include <stddef.h> /* size_t, ptrdiff_t */ #include <string.h> /* memcpy */ #include <stdlib.h> /* malloc, free, qsort */ -#include "error_private.h" +#include "../common/error_private.h" @@ -1862,7 +1862,7 @@ MEM_STATIC size_t HUFv06_readStats(BYTE* huffWeight, size_t hwSize, U32* rankSta if (!srcSize) return ERROR(srcSize_wrong); iSize = ip[0]; - //memset(huffWeight, 0, hwSize); /* is not necessary, even though some analyzer complain ... */ + /* memset(huffWeight, 0, hwSize); */ /* is not necessary, even though some analyzer complain ... */ if (iSize >= 128) { /* special header */ if (iSize >= (242)) { /* RLE */ @@ -2014,7 +2014,7 @@ size_t HUFv06_readDTableX2 (U16* DTable, const void* src, size_t srcSize) HUFv06_DEltX2* const dt = (HUFv06_DEltX2*)dtPtr; HUFv06_STATIC_ASSERT(sizeof(HUFv06_DEltX2) == sizeof(U16)); /* if compilation fails here, assertion is false */ - //memset(huffWeight, 0, sizeof(huffWeight)); /* is not necessary, even though some analyzer complain ... */ + /* memset(huffWeight, 0, sizeof(huffWeight)); */ /* is not necessary, even though some analyzer complain ... */ iSize = HUFv06_readStats(huffWeight, HUFv06_MAX_SYMBOL_VALUE + 1, rankVal, &nbSymbols, &tableLog, src, srcSize); if (HUFv06_isError(iSize)) return iSize; @@ -2340,7 +2340,7 @@ size_t HUFv06_readDTableX4 (U32* DTable, const void* src, size_t srcSize) HUFv06_STATIC_ASSERT(sizeof(HUFv06_DEltX4) == sizeof(U32)); /* if compilation fails here, assertion is false */ if (memLog > HUFv06_ABSOLUTEMAX_TABLELOG) return ERROR(tableLog_tooLarge); - //memset(weightList, 0, sizeof(weightList)); /* is not necessary, even though some analyzer complain ... */ + /* memset(weightList, 0, sizeof(weightList)); */ /* is not necessary, even though some analyzer complain ... */ iSize = HUFv06_readStats(weightList, HUFv06_MAX_SYMBOL_VALUE + 1, rankStats, &nbSymbols, &tableLog, src, srcSize); if (HUFv06_isError(iSize)) return iSize; @@ -2664,13 +2664,13 @@ size_t HUFv06_decompress (void* dst, size_t dstSize, const void* cSrc, size_t cS { U32 algoNb = 0; if (Dtime[1] < Dtime[0]) algoNb = 1; - // if (Dtime[2] < Dtime[algoNb]) algoNb = 2; /* current speed of HUFv06_decompress4X6 is not good */ + /* if (Dtime[2] < Dtime[algoNb]) algoNb = 2; */ /* current speed of HUFv06_decompress4X6 is not good */ return decompress[algoNb](dst, dstSize, cSrc, cSrcSize); } - //return HUFv06_decompress4X2(dst, dstSize, cSrc, cSrcSize); /* multi-streams single-symbol decoding */ - //return HUFv06_decompress4X4(dst, dstSize, cSrc, cSrcSize); /* multi-streams double-symbols decoding */ - //return HUFv06_decompress4X6(dst, dstSize, cSrc, cSrcSize); /* multi-streams quad-symbols decoding */ + /* return HUFv06_decompress4X2(dst, dstSize, cSrc, cSrcSize); */ /* multi-streams single-symbol decoding */ + /* return HUFv06_decompress4X4(dst, dstSize, cSrc, cSrcSize); */ /* multi-streams double-symbols decoding */ + /* return HUFv06_decompress4X6(dst, dstSize, cSrc, cSrcSize); */ /* multi-streams quad-symbols decoding */ } /* Common functions of Zstd compression library @@ -3501,8 +3501,10 @@ static size_t ZSTDv06_decompressSequences( { size_t const lastLLSize = litEnd - litPtr; if (litPtr > litEnd) return ERROR(corruption_detected); /* too many literals already used */ if (op+lastLLSize > oend) return ERROR(dstSize_tooSmall); - memcpy(op, litPtr, lastLLSize); - op += lastLLSize; + if (lastLLSize > 0) { + memcpy(op, litPtr, lastLLSize); + op += lastLLSize; + } } return op-ostart; @@ -4000,7 +4002,9 @@ size_t ZBUFFv06_decompressInit(ZBUFFv06_DCtx* zbd) MEM_STATIC size_t ZBUFFv06_limitCopy(void* dst, size_t dstCapacity, const void* src, size_t srcSize) { size_t length = MIN(dstCapacity, srcSize); - memcpy(dst, src, length); + if (length > 0) { + memcpy(dst, src, length); + } return length; } @@ -4109,7 +4113,7 @@ size_t ZBUFFv06_decompressContinue(ZBUFFv06_DCtx* zbd, if (!decodedSize) { zbd->stage = ZBUFFds_read; break; } /* this was just a header */ zbd->outEnd = zbd->outStart + decodedSize; zbd->stage = ZBUFFds_flush; - // break; /* ZBUFFds_flush follows */ + /* break; */ /* ZBUFFds_flush follows */ } } /* fall-through */ |