/* * cabinet.h * * Copyright 2002 Greg Turner * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef __WINE_CABINET_H #define __WINE_CABINET_H #include "winnt.h" #define CAB_SPLITMAX (10) #define CAB_SEARCH_SIZE (32*1024) typedef unsigned char cab_UBYTE; /* 8 bits */ typedef UINT16 cab_UWORD; /* 16 bits */ typedef UINT32 cab_ULONG; /* 32 bits */ typedef INT32 cab_LONG; /* 32 bits */ typedef UINT32 cab_off_t; /* number of bits in a ULONG */ #ifndef CHAR_BIT # define CHAR_BIT (8) #endif #define CAB_ULONG_BITS (sizeof(cab_ULONG) * CHAR_BIT) /* endian-neutral reading of little-endian data */ #define EndGetI32(a) ((((a)[3])<<24)|(((a)[2])<<16)|(((a)[1])<<8)|((a)[0])) #define EndGetI16(a) ((((a)[1])<<8)|((a)[0])) /* structure offsets */ #define cfhead_Signature (0x00) #define cfhead_CabinetSize (0x08) #define cfhead_FileOffset (0x10) #define cfhead_MinorVersion (0x18) #define cfhead_MajorVersion (0x19) #define cfhead_NumFolders (0x1A) #define cfhead_NumFiles (0x1C) #define cfhead_Flags (0x1E) #define cfhead_SetID (0x20) #define cfhead_CabinetIndex (0x22) #define cfhead_SIZEOF (0x24) #define cfheadext_HeaderReserved (0x00) #define cfheadext_FolderReserved (0x02) #define cfheadext_DataReserved (0x03) #define cfheadext_SIZEOF (0x04) #define cffold_DataOffset (0x00) #define cffold_NumBlocks (0x04) #define cffold_CompType (0x06) #define cffold_SIZEOF (0x08) #define cffile_UncompressedSize (0x00) #define cffile_FolderOffset (0x04) #define cffile_FolderIndex (0x08) #define cffile_Date (0x0A) #define cffile_Time (0x0C) #define cffile_Attribs (0x0E) #define cffile_SIZEOF (0x10) #define cfdata_CheckSum (0x00) #define cfdata_CompressedSize (0x04) #define cfdata_UncompressedSize (0x06) #define cfdata_SIZEOF (0x08) /* flags */ #define cffoldCOMPTYPE_MASK (0x000f) #define cffoldCOMPTYPE_NONE (0x0000) #define cffoldCOMPTYPE_MSZIP (0x0001) #define cffoldCOMPTYPE_QUANTUM (0x0002) #define cffoldCOMPTYPE_LZX (0x0003) #define cfheadPREV_CABINET (0x0001) #define cfheadNEXT_CABINET (0x0002) #define cfheadRESERVE_PRESENT (0x0004) #define cffileCONTINUED_FROM_PREV (0xFFFD) #define cffileCONTINUED_TO_NEXT (0xFFFE) #define cffileCONTINUED_PREV_AND_NEXT (0xFFFF) #define cffile_A_RDONLY (0x01) #define cffile_A_HIDDEN (0x02) #define cffile_A_SYSTEM (0x04) #define cffile_A_ARCH (0x20) #define cffile_A_EXEC (0x40) #define cffile_A_NAME_IS_UTF (0x80) /****************************************************************************/ /* our archiver information / state */ /* MSZIP stuff */ #define ZIPWSIZE 0x8000 /* window size */ #define ZIPLBITS 9 /* bits in base literal/length lookup table */ #define ZIPDBITS 6 /* bits in base distance lookup table */ #define ZIPBMAX 16 /* maximum bit length of any code */ #define ZIPN_MAX 288 /* maximum number of codes in any set */ struct Ziphuft { cab_UBYTE e; /* number of extra bits or operation */ cab_UBYTE b; /* number of bits in this code or subcode */ union { cab_UWORD n; /* literal, length base, or distance base */ struct Ziphuft *t; /* pointer to next level of table */ } v; }; struct ZIPstate { cab_ULONG window_posn; /* current offset within the window */ cab_ULONG bb; /* bit buffer */ cab_ULONG bk; /* bits in bit buffer */ cab_ULONG ll[288+32]; /* literal/length and distance code lengths */ cab_ULONG c[ZIPBMAX+1]; /* bit length count table */ cab_LONG lx[ZIPBMAX+1]; /* memory for l[-1..ZIPBMAX-1] */ struct Ziphuft *u[ZIPBMAX]; /* table stack */ cab_ULONG v[ZIPN_MAX]; /* values in order of bit length */ cab_ULONG x[ZIPBMAX+1]; /* bit offsets, then code stack */ cab_UBYTE *inpos; }; /* Quantum stuff */ struct QTMmodelsym { cab_UWORD sym, cumfreq; }; struct QTMmodel { int shiftsleft, entries; struct QTMmodelsym *syms; cab_UWORD tabloc[256]; }; struct QTMstate { cab_UBYTE *window; /* the actual decoding window */ cab_ULONG window_size; /* window size (1Kb through 2Mb) */ cab_ULONG actual_size; /* window size when it was first allocated */ cab_ULONG window_posn; /* current offset within the window */ struct QTMmodel model7; struct QTMmodelsym m7sym[7+1]; struct QTMmodel model4, model5, model6pos, model6len; struct QTMmodelsym m4sym[0x18 + 1]; struct QTMmodelsym m5sym[0x24 + 1]; struct QTMmodelsym m6psym[0x2a + 1], m6lsym[0x1b + 1]; struct QTMmodel model00, model40, model80, modelC0; struct QTMmodelsym m00sym[0x40 + 1], m40sym[0x40 + 1]; struct QTMmodelsym m80sym[0x40 + 1], mC0sym[0x40 + 1]; }; /* LZX stuff */ /* some constants defined by the LZX specification */ #define LZX_MIN_MATCH (2) #define LZX_MAX_MATCH (257) #define LZX_NUM_CHARS (256) #define LZX_BLOCKTYPE_INVALID (0) /* also blocktypes 4-7 invalid */ #define LZX_BLOCKTYPE_VERBATIM (1) #define LZX_BLOCKTYPE_ALIGNED (2) #define LZX_BLOCKTYPE_UNCOMPRESSED (3) #define LZX_PRETREE_NUM_ELEMENTS (20) #define LZX_ALIGNED_NUM_ELEMENTS (8) /* aligned offset tree #elements */ #define LZX_NUM_PRIMARY_LENGTHS (7) /* this one missing from spec! */ #define LZX_NUM_SECONDARY_LENGTHS (249) /* length tree #elements */ /* LZX huffman defines: tweak tablebits as desired */ #define LZX_PRETREE_MAXSYMBOLS (LZX_PRETREE_NUM_ELEMENTS) #define LZX_PRETREE_TABLEBITS (6) #define LZX_MAINTREE_MAXSYMBOLS (LZX_NUM_CHARS + 50*8) #define LZX_MAINTREE_TABLEBITS (12) #define LZX_LENGTH_MAXSYMBOLS (LZX_NUM_SECONDARY_LENGTHS+1) #define LZX_LENGTH_TABLEBITS (12) #define LZX_ALIGNED_MAXSYMBOLS (LZX_ALIGNED_NUM_ELEMENTS) #define LZX_ALIGNED_TABLEBITS (7) #define LZX_LENTABLE_SAFETY (64) /* we allow length table decoding overruns */ #define LZX_DECLARE_TABLE(tbl) \ cab_UWORD tbl##_table[(1<