258 lines
9.5 KiB
C++
258 lines
9.5 KiB
C++
// --------------------------------------------------------------------------------
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// Binxhex.h
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// Copyright (c)1993-1995 Microsoft Corporation, All Rights Reserved
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// Steven J. Bailey
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// --------------------------------------------------------------------------------
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#ifndef __BINHEX_H
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#define __BINHEX_H
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// ---------------------------------------------------------------------------------------
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// MACBINARY Header
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// ---------------------------------------------------------------------------------------
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// Byte packing
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#pragma pack(1)
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typedef struct
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{
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BYTE bMustBeZero1;
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BYTE cchFileName;
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char rgchFileName[63];
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DWORD dwType;
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DWORD dwCreator;
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BYTE bFinderFlags;
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BYTE bMustBeZero2;
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WORD xIcon;
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WORD yIcon;
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WORD wFileID;
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BYTE fProtected;
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BYTE bMustBeZero3;
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DWORD lcbDataFork;
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DWORD lcbResourceFork;
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DWORD dwCreationDate;
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DWORD dwModificationDate;
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union
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{
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struct
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{
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WORD cbGetInfo;
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BYTE bFinderFlags2;
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BYTE wGap[14];
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DWORD lcbUnpacked;
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WORD cbSecondHeader;
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BYTE bVerMacBin2;
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BYTE bMinVerMacBin2;
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WORD wCRC;
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};
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struct
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{
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WORD wDummy;
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BYTE bByte101ToByte125[25];
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};
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BYTE Reserved[27];
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};
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WORD wMachineID;
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} MACBINARY, *LPMACBINARY;
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#pragma pack()
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// --------------------------------------------------------------------------------
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// Globals
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// --------------------------------------------------------------------------------
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// Non Mac Creator Types
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typedef struct _screatortype
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{
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char szCreator[5];
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char szType[5];
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} sCreatorType;
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extern sCreatorType * g_lpCreatorTypes;
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// --------------------------------------------------------------------------------
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// MAPI Types
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// --------------------------------------------------------------------------------
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typedef ULONG CB; // Count of bytes
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typedef ULONG C; // Count
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typedef LPBYTE PB; // pointer to bytes
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// --------------------------------------------------------------------------------
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// Defines
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// --------------------------------------------------------------------------------
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#define BINHEX_INVALID 0x7f
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#define BINHEX_REPEAT 0x90
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#define XXXX BINHEX_INVALID
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#define MIN(a,b) ( (a) > (b) ? (b) : (a) )
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#define hrSuccess S_OK
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// Uncomment for Binhex debugging support
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// #define BINHEX_TRACE 1
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#if defined(_X86_) || defined(_AMD64_) || defined(_IA64_)
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// host is little endian
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#define NATIVE_LONG_FROM_BIG(lpuch) ( (*(unsigned char *) (lpuch)) << 24 \
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| (*(unsigned char *)((lpuch) + 1)) << 16 \
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| (*(unsigned char *)((lpuch) + 2)) << 8 \
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| (*(unsigned char *)((lpuch) + 3)))
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#elif defined(_MPPC_)
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#define NATIVE_LONG_FROM_BIG(lpuch) (*(unsigned long *) (lpuch))
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#else
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#error "Must define NATIVE_LONG_FROM_BIG for this architecture!"
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#endif
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// --------------------------------------------------------------------------------
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// Constants
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// --------------------------------------------------------------------------------
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const CB cbLineLengthUnlimited = 0;
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const CB cbMIN_BINHEX_HEADER_SIZE = 21;
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const WORD wZero = 0;
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// --------------------------------------------------------------------------------
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// g_rgchBinHex8to6
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// --------------------------------------------------------------------------------
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const CHAR g_rgchBinHex8to6[] =
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"!\"#$%&'()*+,-012345689@ABCDEFGHIJKLMNPQRSTUVXYZ[`abcdefhijklmpqr";
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// --------------------------------------------------------------------------------
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// g_rgchBinHex6to8
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// --------------------------------------------------------------------------------
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const CHAR g_rgchBinHex6to8[] =
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{
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// 0x00
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XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX,
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XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX,
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XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX,
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XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX,
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// 0x20
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XXXX, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,
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0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, XXXX, XXXX,
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// 0x30
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0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13, XXXX,
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0x14, 0x15, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX,
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// 0x40
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0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D,
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0x1E, 0x1F, 0x20, 0x21, 0x22, 0x23, 0x24, XXXX,
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// 0x50
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0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, XXXX,
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0x2C, 0x2D, 0x2E, 0x2F, XXXX, XXXX, XXXX, XXXX,
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// 0x60
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0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, XXXX,
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0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, XXXX, XXXX,
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// 0x70
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0x3D, 0x3E, 0x3F, XXXX, XXXX, XXXX, XXXX, XXXX,
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XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX,
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// 0x80
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XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX,
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XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX,
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XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX,
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XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX,
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XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX,
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XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX,
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XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX,
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XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX,
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XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX,
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XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX,
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XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX,
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XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX,
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XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX,
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XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX,
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XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX,
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XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX,
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};
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// --------------------------------------------------------------------------------
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// BINHEX post processing data
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// --------------------------------------------------------------------------------
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typedef struct _sbinhexreturndata
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{
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MACBINARY macbinHdr;
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BOOL fIsMacFile;
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} BINHEXRETDATA;
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//-----------------------------------------------------------------------------
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// Apple Macintosh BinHex 4.0 encoder class.
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//-----------------------------------------------------------------------------
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class CBinhexEncoder
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{
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public:
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CBinhexEncoder(void);
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~CBinhexEncoder(void);
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HRESULT HrConfig(IN CB cbLineLength, IN C cMaxLines, IN void * pvParms);
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HRESULT HrEmit(IN PB pbRead, IN OUT CB * pcbRead, OUT PB pbWrite, IN OUT CB * pcbWrite);
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private:
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// Binhex's the supplied buffer into m_pbWrite, modified m_cbProduced
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HRESULT HrBinHexBuffer( LPBYTE lpbIn, CB cbIn, CB * lpcbConsumed );
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// Binhex byte and outputs to m_pbWrite
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HRESULT HrBinHexByte( BYTE b );
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// Did we generate the maximum number of output lines?
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virtual BOOL FMaxLinesReached(void)
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{ return (m_cMaxLines > 0 && m_cLines >= m_cMaxLines); }
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// Are we operating under restricted line length?
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virtual BOOL FLineLengthLimited(void)
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{ return m_cbLineLength != cbLineLengthUnlimited; }
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LPMACBINARY m_lpmacbinHdr; // pointer to passed in Mac Binary header
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ULONG m_ulAccum; // acculator to store chars when converting from 6bytes to 8 bytes.
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ULONG m_cAccum; // count of characters accumulated (0 - 3)
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BYTE m_bRepeat; // repeat char
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CB m_cbRepeat; // amount to repeat
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BYTE m_bPrev; // Previous byte processed
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BYTE m_bCurr; // current byte being processed;
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WORD m_wCRC; // CRC used for data or Resource forks
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CB m_cbLine; // Number of chars currently encoded for a line of output
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CB m_cbFork; // Size of fork to process
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CB m_cbLeftInFork; // How much of current fork we've processed.
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CB m_cbProduced; // number of chars produces after decoding and RLE expansion
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CB m_cbLeftInOutputBuffer; // number of bytes left in passed in Output buffer
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CB m_cbConsumed; // number of bytes used from passed in input buffer
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CB m_cbLeftInInputBuffer; // number of bytes in passed in Input buffer
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CB m_cbWrite; // number of bytes written out to output buffer
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LPBYTE m_pbWrite; // pointer to output buffer.
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BOOL m_fHandledx90; // flag to preserve literal x90 processing across buffer resets.
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CB m_cbPad; // byte count of padding across buffer refreshes.
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CB m_cbLineLength; // Maximum length of output line
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BOOL m_fConfigured; // Has HrConfig been called successfully?
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CB m_cbLeftOnLastLine; // Number of bytes left on last line of output
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C m_cMaxLines; // Maximum number of output lines requested
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C m_cLines; // Lines of output generated
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// Encoding states
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enum _BinHexStateEnc
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{
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sHEADER, sDATA, sRESOURCE, sEND
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} m_eBinHexStateEnc;
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#if defined (DEBUG) && defined (BINHEX_TRACE)
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LPSTREAM m_lpstreamEncodeRLE; // trace of Run Length encoding of the raw source data
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LPSTREAM m_lpstreamEncodeRAW; // trace of raw data before RLE has been applied
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#endif
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};
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#endif // __BINHEX_H
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