📄 cabinet.h
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/*
* cabinet.h
*
* Copyright 2002 Greg Turner
* Copyright 2005 Gerold Jens Wucherpfennig
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef __WINE_CABINET_H
#define __WINE_CABINET_H
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "winnt.h"
#include "fdi.h"
#include "fci.h"
/* from msvcrt/sys/stat.h */
#define _S_IWRITE 0x0080
#define _S_IREAD 0x0100
#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)
/* 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<<LZX_##tbl##_TABLEBITS) + (LZX_##tbl##_MAXSYMBOLS<<1)];\
cab_UBYTE tbl##_len [LZX_##tbl##_MAXSYMBOLS + LZX_LENTABLE_SAFETY]
struct LZXstate {
cab_UBYTE *window; /* the actual decoding window */
cab_ULONG window_size; /* window size (32Kb through 2Mb) */
cab_ULONG actual_size; /* window size when it was first allocated */
cab_ULONG window_posn; /* current offset within the window */
cab_ULONG R0, R1, R2; /* for the LRU offset system */
cab_UWORD main_elements; /* number of main tree elements */
int header_read; /* have we started decoding at all yet? */
cab_UWORD block_type; /* type of this block */
cab_ULONG block_length; /* uncompressed length of this block */
cab_ULONG block_remaining; /* uncompressed bytes still left to decode */
cab_ULONG frames_read; /* the number of CFDATA blocks processed */
cab_LONG intel_filesize; /* magic header value used for transform */
cab_LONG intel_curpos; /* current offset in transform space */
int intel_started; /* have we seen any translatable data yet? */
LZX_DECLARE_TABLE(PRETREE);
LZX_DECLARE_TABLE(MAINTREE);
LZX_DECLARE_TABLE(LENGTH);
LZX_DECLARE_TABLE(ALIGNED);
};
struct lzx_bits {
cab_ULONG bb;
int bl;
cab_UBYTE *ip;
};
/* 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];
cab_UBYTE q_length_base[27], q_length_extra[27], q_extra_bits[42];
cab_ULONG q_position_base[42];
cab_ULONG lzx_position_base[51];
cab_UBYTE extra_bits[51];
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;
PERF perf;
PFNFCIFILEPLACED pfnfiledest;
PFNFCIALLOC pfnalloc;
PFNFCIFREE pfnfree;
PFNFCIOPEN pfnopen;
PFNFCIREAD pfnread;
PFNFCIWRITE pfnwrite;
PFNFCICLOSE pfnclose;
PFNFCISEEK pfnseek;
PFNFCIDELETE pfndelete;
PFNFCIGETTEMPFILE pfnfcigtf;
PCCAB pccab;
BOOL fPrevCab;
BOOL fNextCab;
BOOL fSplitFolder;
cab_ULONG statusFolderCopied;
cab_ULONG statusFolderTotal;
BOOL fGetNextCabInVain;
void *pv;
char szPrevCab[CB_MAX_CABINET_NAME]; /* previous cabinet name */
char szPrevDisk[CB_MAX_DISK_NAME]; /* disk name of previous cabinet */
CCAB oldCCAB;
char* data_in; /* uncompressed data blocks */
cab_UWORD cdata_in;
char* data_out; /* compressed data blocks */
ULONG cCompressedBytesInFolder;
cab_UWORD cFolders;
cab_UWORD cFiles;
cab_ULONG cDataBlocks;
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