/* * 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" #include "fdi.h" #include "fci.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<x) #define ZIP(x) (decomp_state->methods.zip.x) #define QTM(x) (decomp_state->methods.qtm.x) #define LZX(x) (decomp_state->methods.lzx.x) #define DECR_OK (0) #define DECR_DATAFORMAT (1) #define DECR_ILLEGALDATA (2) #define DECR_NOMEMORY (3) #define DECR_CHECKSUM (4) #define DECR_INPUT (5) #define DECR_OUTPUT (6) /* CAB data blocks are <= 32768 bytes in uncompressed form. Uncompressed * blocks have zero growth. MSZIP guarantees that it won't grow above * uncompressed size by more than 12 bytes. LZX guarantees it won't grow * more than 6144 bytes. */ #define CAB_BLOCKMAX (32768) #define CAB_INPUTMAX (CAB_BLOCKMAX+6144) struct cab_file { struct cab_file *next; /* next file in sequence */ struct cab_folder *folder; /* folder that contains this file */ LPCSTR filename; /* output name of file */ HANDLE fh; /* open file handle or NULL */ cab_ULONG length; /* uncompressed length of file */ cab_ULONG offset; /* uncompressed offset in folder */ cab_UWORD index; /* magic index number of folder */ cab_UWORD time, date, attribs; /* MS-DOS time/date/attributes */ }; struct cab_folder { struct cab_folder *next; struct cabinet *cab[CAB_SPLITMAX]; /* cabinet(s) this folder spans */ cab_off_t offset[CAB_SPLITMAX]; /* offset to data blocks */ cab_UWORD comp_type; /* compression format/window size */ cab_ULONG comp_size; /* compressed size of folder */ cab_UBYTE num_splits; /* number of split blocks + 1 */ cab_UWORD num_blocks; /* total number of blocks */ struct cab_file *contfile; /* the first split file */ }; struct cabinet { struct cabinet *next; /* for making a list of cabinets */ LPCSTR filename; /* input name of cabinet */ HANDLE *fh; /* open file handle or NULL */ cab_off_t filelen; /* length of cabinet file */ cab_off_t blocks_off; /* offset to data blocks in file */ struct cabinet *prevcab, *nextcab; /* multipart cabinet chains */ char *prevname, *nextname; /* and their filenames */ char *previnfo, *nextinfo; /* and their visible names */ struct cab_folder *folders; /* first folder in this cabinet */ struct cab_file *files; /* first file in this cabinet */ cab_UBYTE block_resv; /* reserved space in datablocks */ cab_UBYTE flags; /* header flags */ }; typedef struct cds_forward { struct cab_folder *current; /* current folder we're extracting from */ cab_ULONG offset; /* uncompressed offset within folder */ cab_UBYTE *outpos; /* (high level) start of data to use up */ cab_UWORD outlen; /* (high level) amount of data to use up */ cab_UWORD split; /* at which split in current folder? */ int (*decompress)(int, int, struct cds_forward *); /* chosen compress fn */ cab_UBYTE inbuf[CAB_INPUTMAX+2]; /* +2 for lzx bitbuffer overflows! */ cab_UBYTE outbuf[CAB_BLOCKMAX]; union { struct ZIPstate zip; struct QTMstate qtm; struct LZXstate lzx; } methods; } cab_decomp_state; /* _Int as in "Internal" fyi */ typedef struct { unsigned int FCI_Intmagic; } FCI_Int, *PFCI_Int; typedef struct { unsigned int FDI_Intmagic; PFNALLOC pfnalloc; PFNFREE pfnfree; PFNOPEN pfnopen; PFNREAD pfnread; PFNWRITE pfnwrite; PFNCLOSE pfnclose; PFNSEEK pfnseek; PERF perf; } FDI_Int, *PFDI_Int; /* cast an HFCI into a PFCI_Int */ #define PFCI_INT(hfci) ((PFDI_Int)(hfci)) /* cast an HFDI into a PFDI_Int */ #define PFDI_INT(hfdi) ((PFDI_Int)(hfdi)) /* quickie pfdi method invokers */ #define PFDI_ALLOC(hfdi, size) ((*PFDI_INT(hfdi)->pfnalloc) (size)) #define PFDI_FREE(hfdi, ptr) ((*PFDI_INT(hfdi)->pfnfree) (ptr)) #define PFDI_OPEN(hfdi, file, flag, mode) ((*PFDI_INT(hfdi)->pfnopen) (file, flag, mode)) #define PFDI_READ(hfdi, hf, pv, cb) ((*PFDI_INT(hfdi)->pfnread) (hf, pv, cb)) #define PFDI_WRITE(hfdi, hf, pv, cb) ((*PFDI_INT(hfdi)->pfnwrite) (hf, pv, cb)) #define PFDI_CLOSE(hfdi, hf) ((*PFDI_INT(hfdi)->pfnclose) (hf)) #define PFDI_SEEK(hfdi, hf, dist, type) ((*PFDI_INT(hfdi)->pfnseek) (hf, dist, type)) #define FCI_INT_MAGIC 0xfcfcfc05 #define FDI_INT_MAGIC 0xfdfdfd05 #define REALLY_IS_FCI(hfci) ( \ (((void *) hfci) != NULL) && \ (PFCI_INT(hfci)->FCI_Intmagic == FCI_INT_MAGIC) ) #define REALLY_IS_FDI(hfdi) ( \ (((void *) hfdi) != NULL) && \ (PFDI_INT(hfdi)->FDI_Intmagic == FDI_INT_MAGIC) ) /* from cabextract.c */ BOOL process_cabinet(LPCSTR cabname, LPCSTR dir, BOOL fix, BOOL lower); #endif /* __WINE_CABINET_H */