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15.12

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This commit is contained in:
Igor Pavlov
2015-11-20 00:00:00 +00:00
committed by Kornel Lesiński
parent e24f7fba53
commit 5de23c1deb
17 changed files with 363 additions and 394 deletions
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56
C/7zDec.c
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@@ -1,5 +1,5 @@
/* 7zDec.c -- Decoding from 7z folder
2015-08-01 : Igor Pavlov : Public domain */
2015-11-18 : Igor Pavlov : Public domain */
#include "Precomp.h"
@@ -8,6 +8,7 @@
/* #define _7ZIP_PPMD_SUPPPORT */
#include "7z.h"
#include "7zCrc.h"
#include "Bcj2.h"
#include "Bra.h"
@@ -160,14 +161,23 @@ static SRes SzDecodeLzma(const Byte *props, unsigned propsSize, UInt64 inSize, I
inSize -= inProcessed;
if (res != SZ_OK)
break;
if (state.dicPos == state.dicBufSize || (inProcessed == 0 && dicPos == state.dicPos))
if (status == LZMA_STATUS_FINISHED_WITH_MARK)
{
if (state.dicBufSize != outSize || lookahead != 0 ||
(status != LZMA_STATUS_FINISHED_WITH_MARK &&
status != LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK))
if (outSize != state.dicPos || inSize != 0)
res = SZ_ERROR_DATA;
break;
}
if (outSize == state.dicPos && inSize == 0 && status == LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK)
break;
if (inProcessed == 0 && dicPos == state.dicPos)
{
res = SZ_ERROR_DATA;
break;
}
res = inStream->Skip((void *)inStream, inProcessed);
if (res != SZ_OK)
break;
@@ -213,13 +223,20 @@ static SRes SzDecodeLzma2(const Byte *props, unsigned propsSize, UInt64 inSize,
inSize -= inProcessed;
if (res != SZ_OK)
break;
if (state.decoder.dicPos == state.decoder.dicBufSize || (inProcessed == 0 && dicPos == state.decoder.dicPos))
if (status == LZMA_STATUS_FINISHED_WITH_MARK)
{
if (state.decoder.dicBufSize != outSize || lookahead != 0 ||
(status != LZMA_STATUS_FINISHED_WITH_MARK))
if (outSize != state.decoder.dicPos || inSize != 0)
res = SZ_ERROR_DATA;
break;
}
if (inProcessed == 0 && dicPos == state.decoder.dicPos)
{
res = SZ_ERROR_DATA;
break;
}
res = inStream->Skip((void *)inStream, inProcessed);
if (res != SZ_OK)
break;
@@ -537,33 +554,38 @@ SRes SzAr_DecodeFolder(const CSzAr *p, UInt32 folderIndex,
SRes res;
CSzFolder folder;
CSzData sd;
CSzData sdSizes;
const Byte *data = p->CodersData + p->FoCodersOffsets[folderIndex];
sd.Data = data;
sd.Size = p->FoCodersOffsets[folderIndex + 1] - p->FoCodersOffsets[folderIndex];
sdSizes.Data = p->UnpackSizesData + p->FoSizesOffsets[folderIndex];
sdSizes.Size =
p->FoSizesOffsets[folderIndex + 1] -
p->FoSizesOffsets[folderIndex];
res = SzGetNextFolderItem(&folder, &sd, &sdSizes);
res = SzGetNextFolderItem(&folder, &sd);
if (res != SZ_OK)
return res;
if (sd.Size != 0 || outSize != folder.CodersUnpackSizes[folder.UnpackStream])
if (sd.Size != 0
|| folder.UnpackStream != p->FoToMainUnpackSizeIndex[folderIndex]
|| outSize != SzAr_GetFolderUnpackSize(p, folderIndex))
return SZ_ERROR_FAIL;
{
unsigned i;
Byte *tempBuf[3] = { 0, 0, 0};
res = SzFolder_Decode2(&folder, data, folder.CodersUnpackSizes,
res = SzFolder_Decode2(&folder, data,
&p->CoderUnpackSizes[p->FoToCoderUnpackSizes[folderIndex]],
p->PackPositions + p->FoStartPackStreamIndex[folderIndex],
inStream, startPos,
outBuffer, (SizeT)outSize, allocMain, tempBuf);
for (i = 0; i < 3; i++)
IAlloc_Free(allocMain, tempBuf[i]);
if (res == SZ_OK)
if (SzBitWithVals_Check(&p->FolderCRCs, folderIndex))
if (CrcCalc(outBuffer, outSize) != p->FolderCRCs.Vals[folderIndex])
res = SZ_ERROR_CRC;
return res;
}
}