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Unified Diff: third_party/lzma/v4_65/files/C/Archive/7z/7zDecode.c

Issue 624713003: Keep only base/extractor.[cc|h]. (Closed) Base URL: https://chromium.googlesource.com/external/omaha.git@master
Patch Set: Created 6 years, 2 months ago
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Index: third_party/lzma/v4_65/files/C/Archive/7z/7zDecode.c
diff --git a/third_party/lzma/v4_65/files/C/Archive/7z/7zDecode.c b/third_party/lzma/v4_65/files/C/Archive/7z/7zDecode.c
deleted file mode 100644
index 02526f0e207c538d313c8f17be5b93747f65d9c6..0000000000000000000000000000000000000000
--- a/third_party/lzma/v4_65/files/C/Archive/7z/7zDecode.c
+++ /dev/null
@@ -1,254 +0,0 @@
-/* 7zDecode.c -- Decoding from 7z folder
-2008-11-23 : Igor Pavlov : Public domain */
-
-#include <string.h>
-
-#include "../../Bcj2.h"
-#include "../../Bra.h"
-#include "../../LzmaDec.h"
-#include "7zDecode.h"
-
-#define k_Copy 0
-#define k_LZMA 0x30101
-#define k_BCJ 0x03030103
-#define k_BCJ2 0x0303011B
-
-static SRes SzDecodeLzma(CSzCoderInfo *coder, UInt64 inSize, ILookInStream *inStream,
- Byte *outBuffer, SizeT outSize, ISzAlloc *allocMain)
-{
- CLzmaDec state;
- SRes res = SZ_OK;
-
- LzmaDec_Construct(&state);
- RINOK(LzmaDec_AllocateProbs(&state, coder->Props.data, (unsigned)coder->Props.size, allocMain));
- state.dic = outBuffer;
- state.dicBufSize = outSize;
- LzmaDec_Init(&state);
-
- for (;;)
- {
- Byte *inBuf = NULL;
- size_t lookahead = (1 << 18);
- if (lookahead > inSize)
- lookahead = (size_t)inSize;
- res = inStream->Look((void *)inStream, (void **)&inBuf, &lookahead);
- if (res != SZ_OK)
- break;
-
- {
- SizeT inProcessed = (SizeT)lookahead, dicPos = state.dicPos;
- ELzmaStatus status;
- res = LzmaDec_DecodeToDic(&state, outSize, inBuf, &inProcessed, LZMA_FINISH_END, &status);
- lookahead -= inProcessed;
- inSize -= inProcessed;
- if (res != SZ_OK)
- break;
- if (state.dicPos == state.dicBufSize || (inProcessed == 0 && dicPos == state.dicPos))
- {
- if (state.dicBufSize != outSize || lookahead != 0 ||
- (status != LZMA_STATUS_FINISHED_WITH_MARK &&
- status != LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK))
- res = SZ_ERROR_DATA;
- break;
- }
- res = inStream->Skip((void *)inStream, inProcessed);
- if (res != SZ_OK)
- break;
- }
- }
-
- LzmaDec_FreeProbs(&state, allocMain);
- return res;
-}
-
-static SRes SzDecodeCopy(UInt64 inSize, ILookInStream *inStream, Byte *outBuffer)
-{
- while (inSize > 0)
- {
- void *inBuf;
- size_t curSize = (1 << 18);
- if (curSize > inSize)
- curSize = (size_t)inSize;
- RINOK(inStream->Look((void *)inStream, (void **)&inBuf, &curSize));
- if (curSize == 0)
- return SZ_ERROR_INPUT_EOF;
- memcpy(outBuffer, inBuf, curSize);
- outBuffer += curSize;
- inSize -= curSize;
- RINOK(inStream->Skip((void *)inStream, curSize));
- }
- return SZ_OK;
-}
-
-#define IS_UNSUPPORTED_METHOD(m) ((m) != k_Copy && (m) != k_LZMA)
-#define IS_UNSUPPORTED_CODER(c) (IS_UNSUPPORTED_METHOD(c.MethodID) || c.NumInStreams != 1 || c.NumOutStreams != 1)
-#define IS_NO_BCJ(c) (c.MethodID != k_BCJ || c.NumInStreams != 1 || c.NumOutStreams != 1)
-#define IS_NO_BCJ2(c) (c.MethodID != k_BCJ2 || c.NumInStreams != 4 || c.NumOutStreams != 1)
-
-SRes CheckSupportedFolder(const CSzFolder *f)
-{
- if (f->NumCoders < 1 || f->NumCoders > 4)
- return SZ_ERROR_UNSUPPORTED;
- if (IS_UNSUPPORTED_CODER(f->Coders[0]))
- return SZ_ERROR_UNSUPPORTED;
- if (f->NumCoders == 1)
- {
- if (f->NumPackStreams != 1 || f->PackStreams[0] != 0 || f->NumBindPairs != 0)
- return SZ_ERROR_UNSUPPORTED;
- return SZ_OK;
- }
- if (f->NumCoders == 2)
- {
- if (IS_NO_BCJ(f->Coders[1]) ||
- f->NumPackStreams != 1 || f->PackStreams[0] != 0 ||
- f->NumBindPairs != 1 ||
- f->BindPairs[0].InIndex != 1 || f->BindPairs[0].OutIndex != 0)
- return SZ_ERROR_UNSUPPORTED;
- return SZ_OK;
- }
- if (f->NumCoders == 4)
- {
- if (IS_UNSUPPORTED_CODER(f->Coders[1]) ||
- IS_UNSUPPORTED_CODER(f->Coders[2]) ||
- IS_NO_BCJ2(f->Coders[3]))
- return SZ_ERROR_UNSUPPORTED;
- if (f->NumPackStreams != 4 ||
- f->PackStreams[0] != 2 ||
- f->PackStreams[1] != 6 ||
- f->PackStreams[2] != 1 ||
- f->PackStreams[3] != 0 ||
- f->NumBindPairs != 3 ||
- f->BindPairs[0].InIndex != 5 || f->BindPairs[0].OutIndex != 0 ||
- f->BindPairs[1].InIndex != 4 || f->BindPairs[1].OutIndex != 1 ||
- f->BindPairs[2].InIndex != 3 || f->BindPairs[2].OutIndex != 2)
- return SZ_ERROR_UNSUPPORTED;
- return SZ_OK;
- }
- return SZ_ERROR_UNSUPPORTED;
-}
-
-UInt64 GetSum(const UInt64 *values, UInt32 index)
-{
- UInt64 sum = 0;
- UInt32 i;
- for (i = 0; i < index; i++)
- sum += values[i];
- return sum;
-}
-
-SRes SzDecode2(const UInt64 *packSizes, const CSzFolder *folder,
- ILookInStream *inStream, UInt64 startPos,
- Byte *outBuffer, SizeT outSize, ISzAlloc *allocMain,
- Byte *tempBuf[])
-{
- UInt32 ci;
- SizeT tempSizes[3] = { 0, 0, 0};
- SizeT tempSize3 = 0;
- Byte *tempBuf3 = 0;
-
- RINOK(CheckSupportedFolder(folder));
-
- for (ci = 0; ci < folder->NumCoders; ci++)
- {
- CSzCoderInfo *coder = &folder->Coders[ci];
-
- if (coder->MethodID == k_Copy || coder->MethodID == k_LZMA)
- {
- UInt32 si = 0;
- UInt64 offset;
- UInt64 inSize;
- Byte *outBufCur = outBuffer;
- SizeT outSizeCur = outSize;
- if (folder->NumCoders == 4)
- {
- UInt32 indices[] = { 3, 2, 0 };
- UInt64 unpackSize = folder->UnpackSizes[ci];
- si = indices[ci];
- if (ci < 2)
- {
- Byte *temp;
- outSizeCur = (SizeT)unpackSize;
- if (outSizeCur != unpackSize)
- return SZ_ERROR_MEM;
- temp = (Byte *)IAlloc_Alloc(allocMain, outSizeCur);
- if (temp == 0 && outSizeCur != 0)
- return SZ_ERROR_MEM;
- outBufCur = tempBuf[1 - ci] = temp;
- tempSizes[1 - ci] = outSizeCur;
- }
- else if (ci == 2)
- {
- if (unpackSize > outSize) /* check it */
- return SZ_ERROR_PARAM;
- tempBuf3 = outBufCur = outBuffer + (outSize - (size_t)unpackSize);
- tempSize3 = outSizeCur = (SizeT)unpackSize;
- }
- else
- return SZ_ERROR_UNSUPPORTED;
- }
- offset = GetSum(packSizes, si);
- inSize = packSizes[si];
- RINOK(LookInStream_SeekTo(inStream, startPos + offset));
-
- if (coder->MethodID == k_Copy)
- {
- if (inSize != outSizeCur) /* check it */
- return SZ_ERROR_DATA;
- RINOK(SzDecodeCopy(inSize, inStream, outBufCur));
- }
- else
- {
- RINOK(SzDecodeLzma(coder, inSize, inStream, outBufCur, outSizeCur, allocMain));
- }
- }
- else if (coder->MethodID == k_BCJ)
- {
- UInt32 state;
- if (ci != 1)
- return SZ_ERROR_UNSUPPORTED;
- x86_Convert_Init(state);
- x86_Convert(outBuffer, outSize, 0, &state, 0);
- }
- else if (coder->MethodID == k_BCJ2)
- {
- UInt64 offset = GetSum(packSizes, 1);
- UInt64 s3Size = packSizes[1];
- SRes res;
- if (ci != 3)
- return SZ_ERROR_UNSUPPORTED;
- RINOK(LookInStream_SeekTo(inStream, startPos + offset));
- tempSizes[2] = (SizeT)s3Size;
- if (tempSizes[2] != s3Size)
- return SZ_ERROR_MEM;
- tempBuf[2] = (Byte *)IAlloc_Alloc(allocMain, tempSizes[2]);
- if (tempBuf[2] == 0 && tempSizes[2] != 0)
- return SZ_ERROR_MEM;
- res = SzDecodeCopy(s3Size, inStream, tempBuf[2]);
- RINOK(res)
-
- res = Bcj2_Decode(
- tempBuf3, tempSize3,
- tempBuf[0], tempSizes[0],
- tempBuf[1], tempSizes[1],
- tempBuf[2], tempSizes[2],
- outBuffer, outSize);
- RINOK(res)
- }
- else
- return SZ_ERROR_UNSUPPORTED;
- }
- return SZ_OK;
-}
-
-SRes SzDecode(const UInt64 *packSizes, const CSzFolder *folder,
- ILookInStream *inStream, UInt64 startPos,
- Byte *outBuffer, size_t outSize, ISzAlloc *allocMain)
-{
- Byte *tempBuf[3] = { 0, 0, 0};
- int i;
- SRes res = SzDecode2(packSizes, folder, inStream, startPos,
- outBuffer, (SizeT)outSize, allocMain, tempBuf);
- for (i = 0; i < 3; i++)
- IAlloc_Free(allocMain, tempBuf[i]);
- return res;
-}
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