mirror of
https://github.com/Xevion/easy7zip.git
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9.34
This commit is contained in:
Igor Pavlov
committed by
Kornel Lesiński
Kornel Lesiński
parent
83f8ddcc5b
commit
f08f4dcc3c
179
C/7z.h
Executable file → Normal file
179
C/7z.h
Executable file → Normal file
@@ -1,58 +1,34 @@
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/* 7z.h -- 7z interface
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2010-03-11 : Igor Pavlov : Public domain */
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2013-01-18 : Igor Pavlov : Public domain */
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#ifndef __7Z_H
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#define __7Z_H
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#include "7zBuf.h"
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#include "7zTypes.h"
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EXTERN_C_BEGIN
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#define k7zStartHeaderSize 0x20
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#define k7zSignatureSize 6
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extern Byte k7zSignature[k7zSignatureSize];
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#define k7zMajorVersion 0
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enum EIdEnum
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{
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k7zIdEnd,
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k7zIdHeader,
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k7zIdArchiveProperties,
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k7zIdAdditionalStreamsInfo,
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k7zIdMainStreamsInfo,
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k7zIdFilesInfo,
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k7zIdPackInfo,
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k7zIdUnpackInfo,
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k7zIdSubStreamsInfo,
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k7zIdSize,
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k7zIdCRC,
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k7zIdFolder,
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k7zIdCodersUnpackSize,
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k7zIdNumUnpackStream,
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k7zIdEmptyStream,
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k7zIdEmptyFile,
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k7zIdAnti,
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k7zIdName,
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k7zIdCTime,
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k7zIdATime,
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k7zIdMTime,
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k7zIdWinAttributes,
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k7zIdComment,
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k7zIdEncodedHeader,
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k7zIdStartPos,
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k7zIdDummy
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};
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extern Byte k7zSignature[k7zSignatureSize];
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typedef struct
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{
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UInt32 NumInStreams;
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UInt32 NumOutStreams;
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UInt64 MethodID;
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CBuf Props;
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} CSzCoderInfo;
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const Byte *Data;
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size_t Size;
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} CSzData;
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void SzCoderInfo_Init(CSzCoderInfo *p);
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void SzCoderInfo_Free(CSzCoderInfo *p, ISzAlloc *alloc);
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/* CSzCoderInfo & CSzFolder support only default methods */
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typedef struct
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{
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size_t PropsOffset;
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UInt32 MethodID;
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Byte NumInStreams;
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Byte NumOutStreams;
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Byte PropsSize;
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} CSzCoderInfo;
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typedef struct
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{
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@@ -60,30 +36,35 @@ typedef struct
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UInt32 OutIndex;
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} CSzBindPair;
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#define SZ_NUM_CODERS_IN_FOLDER_MAX 4
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#define SZ_NUM_BINDS_IN_FOLDER_MAX 3
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#define SZ_NUM_PACK_STREAMS_IN_FOLDER_MAX 4
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#define SZ_NUM_CODERS_OUT_STREAMS_IN_FOLDER_MAX 4
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typedef struct
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{
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CSzCoderInfo *Coders;
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CSzBindPair *BindPairs;
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UInt32 *PackStreams;
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UInt64 *UnpackSizes;
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UInt32 NumCoders;
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UInt32 NumBindPairs;
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UInt32 NumPackStreams;
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int UnpackCRCDefined;
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UInt32 UnpackCRC;
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UInt32 NumUnpackStreams;
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UInt32 MainOutStream;
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UInt32 PackStreams[SZ_NUM_PACK_STREAMS_IN_FOLDER_MAX];
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CSzBindPair BindPairs[SZ_NUM_BINDS_IN_FOLDER_MAX];
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CSzCoderInfo Coders[SZ_NUM_CODERS_IN_FOLDER_MAX];
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UInt64 CodersUnpackSizes[SZ_NUM_CODERS_OUT_STREAMS_IN_FOLDER_MAX];
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} CSzFolder;
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void SzFolder_Init(CSzFolder *p);
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UInt64 SzFolder_GetUnpackSize(CSzFolder *p);
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int SzFolder_FindBindPairForInStream(CSzFolder *p, UInt32 inStreamIndex);
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UInt32 SzFolder_GetNumOutStreams(CSzFolder *p);
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UInt64 SzFolder_GetUnpackSize(CSzFolder *p);
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/*
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typedef struct
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{
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size_t CodersDataOffset;
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size_t UnpackSizeDataOffset;
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// UInt32 StartCoderUnpackSizesIndex;
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UInt32 StartPackStreamIndex;
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// UInt32 IndexOfMainOutStream;
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} CSzFolder2;
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*/
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SRes SzFolder_Decode(const CSzFolder *folder, const UInt64 *packSizes,
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ILookInStream *stream, UInt64 startPos,
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Byte *outBuffer, size_t outSize, ISzAlloc *allocMain);
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SRes SzGetNextFolderItem(CSzFolder *f, CSzData *sd, CSzData *sdSizes);
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typedef struct
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{
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@@ -93,35 +74,46 @@ typedef struct
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typedef struct
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{
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CNtfsFileTime MTime;
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UInt64 Size;
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UInt32 Crc;
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UInt32 Attrib;
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Byte HasStream;
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Byte IsDir;
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Byte IsAnti;
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Byte CrcDefined;
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Byte MTimeDefined;
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Byte AttribDefined;
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} CSzFileItem;
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void SzFile_Init(CSzFileItem *p);
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Byte *Defs; /* MSB 0 bit numbering */
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UInt32 *Vals;
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} CSzBitUi32s;
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typedef struct
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{
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Byte *Defs; /* MSB 0 bit numbering */
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// UInt64 *Vals;
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CNtfsFileTime *Vals;
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} CSzBitUi64s;
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#define SzBitArray_Check(p, i) (((p)[(i) >> 3] & (0x80 >> ((i) & 7))) != 0)
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#define SzBitWithVals_Check(p, i) ((p)->Defs && ((p)->Defs[(i) >> 3] & (0x80 >> ((i) & 7))) != 0)
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typedef struct
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{
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UInt64 *PackSizes;
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Byte *PackCRCsDefined;
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UInt32 *PackCRCs;
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CSzFolder *Folders;
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CSzFileItem *Files;
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UInt32 NumPackStreams;
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UInt32 NumFolders;
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UInt32 NumFiles;
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UInt64 *PackPositions; // NumPackStreams + 1
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CSzBitUi32s FolderCRCs;
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size_t *FoCodersOffsets;
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size_t *FoSizesOffsets;
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// UInt32 StartCoderUnpackSizesIndex;
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UInt32 *FoStartPackStreamIndex;
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// CSzFolder2 *Folders; // +1 item for sum values
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Byte *CodersData;
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Byte *UnpackSizesData;
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size_t UnpackSizesDataSize;
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// UInt64 *CoderUnpackSizes;
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} CSzAr;
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void SzAr_Init(CSzAr *p);
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void SzAr_Free(CSzAr *p, ISzAlloc *alloc);
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SRes SzAr_DecodeFolder(const CSzAr *p, UInt32 folderIndex,
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ILookInStream *stream, UInt64 startPos,
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Byte *outBuffer, size_t outSize,
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ISzAlloc *allocMain);
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/*
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SzExtract extracts file from archive
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@@ -146,19 +138,34 @@ void SzAr_Free(CSzAr *p, ISzAlloc *alloc);
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typedef struct
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{
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CSzAr db;
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UInt64 startPosAfterHeader;
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UInt64 dataPos;
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UInt32 NumFiles;
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UInt32 *FolderStartPackStreamIndex;
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UInt64 *PackStreamStartPositions;
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UInt32 *FolderStartFileIndex;
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UInt64 *UnpackPositions;
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// Byte *IsEmptyFiles;
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Byte *IsDirs;
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CSzBitUi32s CRCs;
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CSzBitUi32s Attribs;
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// CSzBitUi32s Parents;
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CSzBitUi64s MTime;
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CSzBitUi64s CTime;
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// UInt32 *FolderStartPackStreamIndex;
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UInt32 *FolderStartFileIndex; // + 1
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UInt32 *FileIndexToFolderIndexMap;
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size_t *FileNameOffsets; /* in 2-byte steps */
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CBuf FileNames; /* UTF-16-LE */
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Byte *FileNames; /* UTF-16-LE */
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} CSzArEx;
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#define SzArEx_IsDir(p, i) (SzBitArray_Check((p)->IsDirs, i))
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#define SzArEx_GetFileSize(p, i) ((p)->UnpackPositions[(i) + 1] - (p)->UnpackPositions[i])
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void SzArEx_Init(CSzArEx *p);
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void SzArEx_Free(CSzArEx *p, ISzAlloc *alloc);
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UInt64 SzArEx_GetFolderStreamPos(const CSzArEx *p, UInt32 folderIndex, UInt32 indexInFolder);
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@@ -172,6 +179,11 @@ if dest != NULL, the return value specifies the number of 16-bit characters that
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size_t SzArEx_GetFileNameUtf16(const CSzArEx *p, size_t fileIndex, UInt16 *dest);
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/*
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size_t SzArEx_GetFullNameLen(const CSzArEx *p, size_t fileIndex);
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UInt16 *SzArEx_GetFullNameUtf16_Back(const CSzArEx *p, size_t fileIndex, UInt16 *dest);
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*/
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SRes SzArEx_Extract(
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const CSzArEx *db,
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ILookInStream *inStream,
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@@ -196,7 +208,8 @@ SZ_ERROR_INPUT_EOF
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SZ_ERROR_FAIL
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*/
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SRes SzArEx_Open(CSzArEx *p, ILookInStream *inStream, ISzAlloc *allocMain, ISzAlloc *allocTemp);
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SRes SzArEx_Open(CSzArEx *p, ILookInStream *inStream,
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ISzAlloc *allocMain, ISzAlloc *allocTemp);
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EXTERN_C_END
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