rlm@1: // Archive/RarHeader.h
rlm@1: 
rlm@1: #ifndef __ARCHIVE_RAR_HEADER_H
rlm@1: #define __ARCHIVE_RAR_HEADER_H
rlm@1: 
rlm@1: #include "Common/Types.h"
rlm@1: 
rlm@1: namespace NArchive{
rlm@1: namespace NRar{
rlm@1: namespace NHeader{
rlm@1: 
rlm@1: const int kMarkerSize = 7;
rlm@1: extern Byte kMarker[kMarkerSize];
rlm@1:   
rlm@1: const int kArchiveSolid = 0x1;
rlm@1: 
rlm@1: namespace NBlockType
rlm@1: {
rlm@1:   enum EBlockType
rlm@1:   {
rlm@1:     kMarker        = 0x72,
rlm@1:     kArchiveHeader = 0x73,
rlm@1:     kFileHeader    = 0x74,
rlm@1:     kCommentHeader = 0x75,
rlm@1:     kOldAuthenticity = 0x76,
rlm@1:     kSubBlock       = 0x77,
rlm@1:     kRecoveryRecord = 0x78,
rlm@1:     kAuthenticity   = 0x79,
rlm@1: 
rlm@1:     kEndOfArchive   = 0x7B // Is not safe
rlm@1:   };
rlm@1: }
rlm@1: 
rlm@1: namespace NArchive
rlm@1: {
rlm@1:   const UInt16 kVolume  = 1;
rlm@1:   const UInt16 kComment = 2;
rlm@1:   const UInt16 kLock    = 4;
rlm@1:   const UInt16 kSolid   = 8;
rlm@1:   const UInt16 kNewVolName = 0x10; // ('volname.partN.rar')
rlm@1:   const UInt16 kAuthenticity  = 0x20;
rlm@1:   const UInt16 kRecovery = 0x40;
rlm@1:   const UInt16 kBlockEncryption  = 0x80;
rlm@1:   const UInt16 kFirstVolume = 0x100; // (set only by RAR 3.0 and later)
rlm@1:   const UInt16 kEncryptVer = 0x200; // RAR 3.6 there is EncryptVer Byte in End of MainHeader
rlm@1:   
rlm@1:   const int kHeaderSizeMin = 7;
rlm@1: 
rlm@1:   struct CBlock
rlm@1:   {
rlm@1:     UInt16 CRC;
rlm@1:     Byte Type;
rlm@1:     UInt16 Flags;
rlm@1:     UInt16 Size;
rlm@1:     UInt16 Reserved1;
rlm@1:     UInt32 Reserved2;
rlm@1:     // UInt16 GetRealCRC() const;
rlm@1:   };
rlm@1:   
rlm@1:   const int kArchiveHeaderSize = 13;
rlm@1: 
rlm@1:   const int kBlockHeadersAreEncrypted = 0x80;
rlm@1: 
rlm@1:   struct CHeader360: public CBlock
rlm@1:   {
rlm@1:     Byte EncryptVersion;
rlm@1:     bool IsEncrypted() const { return (Flags & NHeader::NArchive::kBlockEncryption) != 0; }
rlm@1:     bool IsThereEncryptVer() const { return (Flags & NHeader::NArchive::kEncryptVer) != 0; }
rlm@1:     bool IsEncryptOld() const { return (!IsThereEncryptVer() || EncryptVersion < 36); }
rlm@1:     UInt32 GetBaseSize() const { return kArchiveHeaderSize + (IsEncryptOld() ? 0 : 1); }
rlm@1:   };
rlm@1: }
rlm@1: 
rlm@1: namespace NFile
rlm@1: {
rlm@1:   const int kSplitBefore = 1 << 0;
rlm@1:   const int kSplitAfter  = 1 << 1;
rlm@1:   const int kEncrypted   = 1 << 2;
rlm@1:   const int kComment     = 1 << 3;
rlm@1:   const int kSolid       = 1 << 4;
rlm@1:   
rlm@1:   const int kDictBitStart     = 5;
rlm@1:   const int kNumDictBits  = 3;
rlm@1:   const int kDictMask         = (1 << kNumDictBits) - 1;
rlm@1:   const int kDictDirectoryValue  = 0x7;
rlm@1:   
rlm@1:   const int kSize64Bits    = 1 << 8;
rlm@1:   const int kUnicodeName   = 1 << 9;
rlm@1:   const int kSalt          = 1 << 10;
rlm@1:   const int kOldVersion    = 1 << 11;
rlm@1:   const int kExtTime       = 1 << 12;
rlm@1:   // const int kExtFlags      = 1 << 13;
rlm@1:   // const int kSkipIfUnknown = 1 << 14;
rlm@1: 
rlm@1:   const int kLongBlock    = 1 << 15;
rlm@1:   
rlm@1:   /*
rlm@1:   struct CBlock
rlm@1:   {
rlm@1:     // UInt16 HeadCRC;
rlm@1:     // Byte Type;
rlm@1:     // UInt16 Flags;
rlm@1:     // UInt16 HeadSize;
rlm@1:     UInt32 PackSize;
rlm@1:     UInt32 UnPackSize;
rlm@1:     Byte HostOS;
rlm@1:     UInt32 FileCRC;
rlm@1:     UInt32 Time;
rlm@1:     Byte UnPackVersion;
rlm@1:     Byte Method;
rlm@1:     UInt16 NameSize;
rlm@1:     UInt32 Attributes;
rlm@1:   };
rlm@1:   */
rlm@1: 
rlm@1:   /*
rlm@1:   struct CBlock32
rlm@1:   {
rlm@1:     UInt16 HeadCRC;
rlm@1:     Byte Type;
rlm@1:     UInt16 Flags;
rlm@1:     UInt16 HeadSize;
rlm@1:     UInt32 PackSize;
rlm@1:     UInt32 UnPackSize;
rlm@1:     Byte HostOS;
rlm@1:     UInt32 FileCRC;
rlm@1:     UInt32 Time;
rlm@1:     Byte UnPackVersion;
rlm@1:     Byte Method;
rlm@1:     UInt16 NameSize;
rlm@1:     UInt32 Attributes;
rlm@1:     UInt16 GetRealCRC(const void *aName, UInt32 aNameSize,
rlm@1:         bool anExtraDataDefined = false, Byte *anExtraData = 0) const;
rlm@1:   };
rlm@1:   struct CBlock64
rlm@1:   {
rlm@1:     UInt16 HeadCRC;
rlm@1:     Byte Type;
rlm@1:     UInt16 Flags;
rlm@1:     UInt16 HeadSize;
rlm@1:     UInt32 PackSizeLow;
rlm@1:     UInt32 UnPackSizeLow;
rlm@1:     Byte HostOS;
rlm@1:     UInt32 FileCRC;
rlm@1:     UInt32 Time;
rlm@1:     Byte UnPackVersion;
rlm@1:     Byte Method;
rlm@1:     UInt16 NameSize;
rlm@1:     UInt32 Attributes;
rlm@1:     UInt32 PackSizeHigh;
rlm@1:     UInt32 UnPackSizeHigh;
rlm@1:     UInt16 GetRealCRC(const void *aName, UInt32 aNameSize) const;
rlm@1:   };
rlm@1:   */
rlm@1:   
rlm@1:   const int kLabelFileAttribute            = 0x08;
rlm@1:   const int kWinFileDirectoryAttributeMask = 0x10;
rlm@1:   
rlm@1:   enum CHostOS
rlm@1:   {
rlm@1:     kHostMSDOS = 0,
rlm@1:       kHostOS2   = 1,
rlm@1:       kHostWin32 = 2,
rlm@1:       kHostUnix  = 3,
rlm@1:       kHostMacOS = 4,
rlm@1:       kHostBeOS = 5
rlm@1:   };
rlm@1: }
rlm@1: 
rlm@1: namespace NBlock
rlm@1: {
rlm@1:   const UInt16 kLongBlock = 1 << 15;
rlm@1:   struct CBlock
rlm@1:   {
rlm@1:     UInt16 CRC;
rlm@1:     Byte Type;
rlm@1:     UInt16 Flags;
rlm@1:     UInt16 HeadSize;
rlm@1:     //  UInt32 DataSize;
rlm@1:   };
rlm@1: }
rlm@1: 
rlm@1: /*
rlm@1: struct CSubBlock
rlm@1: {
rlm@1:   UInt16 HeadCRC;
rlm@1:   Byte HeadType;
rlm@1:   UInt16 Flags;
rlm@1:   UInt16 HeadSize;
rlm@1:   UInt32 DataSize;
rlm@1:   UInt16 SubType;
rlm@1:   Byte Level; // Reserved : Must be 0
rlm@1: };
rlm@1: 
rlm@1: struct CCommentBlock
rlm@1: {
rlm@1:   UInt16 HeadCRC;
rlm@1:   Byte HeadType;
rlm@1:   UInt16 Flags;
rlm@1:   UInt16 HeadSize;
rlm@1:   UInt16 UnpSize;
rlm@1:   Byte UnpVer;
rlm@1:   Byte Method;
rlm@1:   UInt16 CommCRC;
rlm@1: };
rlm@1: 
rlm@1: 
rlm@1: struct CProtectHeader
rlm@1: {
rlm@1:   UInt16 HeadCRC;
rlm@1:   Byte HeadType;
rlm@1:   UInt16 Flags;
rlm@1:   UInt16 HeadSize;
rlm@1:   UInt32 DataSize;
rlm@1:   Byte Version;
rlm@1:   UInt16 RecSectors;
rlm@1:   UInt32 TotalBlocks;
rlm@1:   Byte Mark[8];
rlm@1: };
rlm@1: */
rlm@1: 
rlm@1: }}}
rlm@1: 
rlm@1: #endif