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#ifndef _RAR_HEADERS_
#define _RAR_HEADERS_
#define SIZEOF_MARKHEAD 7
#define SIZEOF_OLDMHD 7
#define SIZEOF_NEWMHD 13
#define SIZEOF_OLDLHD 21
#define SIZEOF_NEWLHD 32
#define SIZEOF_SHORTBLOCKHEAD 7
#define SIZEOF_LONGBLOCKHEAD 11
#define SIZEOF_SUBBLOCKHEAD 14
#define SIZEOF_COMMHEAD 13
#define SIZEOF_PROTECTHEAD 26
#define SIZEOF_AVHEAD 14
#define SIZEOF_SIGNHEAD 15
#define SIZEOF_UOHEAD 18
#define SIZEOF_MACHEAD 22
#define SIZEOF_EAHEAD 24
#define SIZEOF_BEEAHEAD 24
#define SIZEOF_STREAMHEAD 26
#define PACK_VER 29
#define PACK_CRYPT_VER 29
#define UNP_VER 36
#define CRYPT_VER 29
#define AV_VER 20
#define PROTECT_VER 20
#define MHD_VOLUME 0x0001U
// Old style main archive comment embed into main archive header. Must not
// be used in new archives anymore. Must never be used with MHD_ENCRYPTVER
// or other flags changing the size of main header. RAR expects the fixed
// size of main header preceding the comment if MHD_COMMENT is found.
#define MHD_COMMENT 0x0002U
#define MHD_LOCK 0x0004U
#define MHD_SOLID 0x0008U
#define MHD_PACK_COMMENT 0x0010U
#define MHD_NEWNUMBERING 0x0010U
#define MHD_AV 0x0020U
#define MHD_PROTECT 0x0040U
#define MHD_PASSWORD 0x0080U
#define MHD_FIRSTVOLUME 0x0100U
#define MHD_ENCRYPTVER 0x0200U
#define LHD_SPLIT_BEFORE 0x0001U
#define LHD_SPLIT_AFTER 0x0002U
#define LHD_PASSWORD 0x0004U
// Old style file comment embed into file header. Must not be used
// in new archives anymore.
#define LHD_COMMENT 0x0008U
#define LHD_SOLID 0x0010U
#define LHD_WINDOWMASK 0x00e0U
#define LHD_WINDOW64 0x0000U
#define LHD_WINDOW128 0x0020U
#define LHD_WINDOW256 0x0040U
#define LHD_WINDOW512 0x0060U
#define LHD_WINDOW1024 0x0080U
#define LHD_WINDOW2048 0x00a0U
#define LHD_WINDOW4096 0x00c0U
#define LHD_DIRECTORY 0x00e0U
#define LHD_LARGE 0x0100U
#define LHD_UNICODE 0x0200U
#define LHD_SALT 0x0400U
#define LHD_VERSION 0x0800U
#define LHD_EXTTIME 0x1000U
#define LHD_EXTAREA 0x2000U
#define SKIP_IF_UNKNOWN 0x4000U
#define LONG_BLOCK 0x8000U
#define EARC_NEXT_VOLUME 0x0001U // Not last volume.
#define EARC_DATACRC 0x0002U // Store CRC32 of RAR archive (now is used only in volumes).
#define EARC_REVSPACE 0x0004U // Reserve space for end of REV file 7 byte record.
#define EARC_VOLNUMBER 0x0008U // Store a number of current volume.
enum HEADER_TYPE {
MARK_HEAD=0x72,MAIN_HEAD=0x73,FILE_HEAD=0x74,COMM_HEAD=0x75,AV_HEAD=0x76,
SUB_HEAD=0x77,PROTECT_HEAD=0x78,SIGN_HEAD=0x79,NEWSUB_HEAD=0x7a,
ENDARC_HEAD=0x7b
};
enum { EA_HEAD=0x100,UO_HEAD=0x101,MAC_HEAD=0x102,BEEA_HEAD=0x103,
NTACL_HEAD=0x104,STREAM_HEAD=0x105 };
enum HOST_SYSTEM {
HOST_MSDOS=0,HOST_OS2=1,HOST_WIN32=2,HOST_UNIX=3,HOST_MACOS=4,
HOST_BEOS=5,HOST_MAX
};
#define SUBHEAD_TYPE_CMT "CMT"
#define SUBHEAD_TYPE_ACL "ACL"
#define SUBHEAD_TYPE_STREAM "STM"
#define SUBHEAD_TYPE_UOWNER "UOW"
#define SUBHEAD_TYPE_AV "AV"
#define SUBHEAD_TYPE_RR "RR"
#define SUBHEAD_TYPE_OS2EA "EA2"
#define SUBHEAD_TYPE_BEOSEA "EABE"
/* new file inherits a subblock when updating a host file */
#define SUBHEAD_FLAGS_INHERITED 0x80000000
#define SUBHEAD_FLAGS_CMT_UNICODE 0x00000001
struct OldMainHeader
{
byte Mark[4];
ushort HeadSize;
byte Flags;
};
struct OldFileHeader
{
uint PackSize;
uint UnpSize;
ushort FileCRC;
ushort HeadSize;
uint FileTime;
byte FileAttr;
byte Flags;
byte UnpVer;
byte NameSize;
byte Method;
};
struct MarkHeader
{
byte Mark[7];
};
struct BaseBlock
{
ushort HeadCRC;
HEADER_TYPE HeadType; // 1 byte.
ushort Flags;
ushort HeadSize;
bool IsSubBlock()
{
if (HeadType==SUB_HEAD)
return(true);
if (HeadType==NEWSUB_HEAD && (Flags & LHD_SOLID)!=0)
return(true);
return(false);
}
};
struct BlockHeader:BaseBlock
{
union {
uint DataSize;
uint PackSize;
};
};
struct MainHeader:BaseBlock
{
ushort HighPosAV;
uint PosAV;
byte EncryptVer;
};
#define SALT_SIZE 8
struct FileHeader:BlockHeader
{
uint UnpSize;
byte HostOS;
uint FileCRC;
uint FileTime;
byte UnpVer;
byte Method;
ushort NameSize;
union {
uint FileAttr;
uint SubFlags;
};
/* optional */
uint HighPackSize;
uint HighUnpSize;
/* names */
char FileName[NM];
wchar FileNameW[NM];
/* optional */
Array<byte> SubData;
byte Salt[SALT_SIZE];
RarTime mtime;
RarTime ctime;
RarTime atime;
RarTime arctime;
/* dummy */
int64 FullPackSize;
int64 FullUnpSize;
void Clear(size_t SubDataSize)
{
SubData.Alloc(SubDataSize);
Flags=LONG_BLOCK;
SubFlags=0;
}
bool CmpName(const char *Name)
{
return(strcmp(FileName,Name)==0);
}
FileHeader& operator = (FileHeader &hd)
{
SubData.Reset();
memcpy(this,&hd,sizeof(*this));
SubData.CleanData();
SubData=hd.SubData;
return(*this);
}
};
struct EndArcHeader:BaseBlock
{
// Optional CRC32 of entire archive up to start of EndArcHeader block.
// Present if EARC_DATACRC flag is set.
uint ArcDataCRC;
// Optional number of current volume.
// Present if EARC_VOLNUMBER flag is set.
ushort VolNumber;
// 7 additional zero bytes can be stored here if EARC_REVSPACE is set.
};
// SubBlockHeader and its successors were used in RAR 2.x format.
// RAR 3.x uses FileHeader with NEWSUB_HEAD HeadType for subblocks.
struct SubBlockHeader:BlockHeader
{
ushort SubType;
byte Level;
};
struct CommentHeader:BaseBlock
{
ushort UnpSize;
byte UnpVer;
byte Method;
ushort CommCRC;
};
struct ProtectHeader:BlockHeader
{
byte Version;
ushort RecSectors;
uint TotalBlocks;
byte Mark[8];
};
struct AVHeader:BaseBlock
{
byte UnpVer;
byte Method;
byte AVVer;
uint AVInfoCRC;
};
struct SignHeader:BaseBlock
{
uint CreationTime;
ushort ArcNameSize;
ushort UserNameSize;
};
struct UnixOwnersHeader:SubBlockHeader
{
ushort OwnerNameSize;
ushort GroupNameSize;
/* dummy */
char OwnerName[NM];
char GroupName[NM];
};
struct EAHeader:SubBlockHeader
{
uint UnpSize;
byte UnpVer;
byte Method;
uint EACRC;
};
struct StreamHeader:SubBlockHeader
{
uint UnpSize;
byte UnpVer;
byte Method;
uint StreamCRC;
ushort StreamNameSize;
/* dummy */
byte StreamName[NM];
};
struct MacFInfoHeader:SubBlockHeader
{
uint fileType;
uint fileCreator;
};
#endif
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