dlls/cabinet/cabinet.h

   1 /*
   2  * cabinet.h
   3  *
   4  * Copyright 2002 Greg Turner
   5  * Copyright 2005 Gerold Jens Wucherpfennig
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21 #ifndef __WINE_CABINET_H
  22 #define __WINE_CABINET_H
  23
  24 #include <stdarg.h>
  25
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "winnt.h"
  29 #include "fdi.h"
  30 #include "fci.h"
  31
  32 #define CAB_SPLITMAX (10)
  33
  34 #define CAB_SEARCH_SIZE (32*1024)
  35
  36 typedef unsigned char cab_UBYTE; /* 8 bits  */
  37 typedef UINT16        cab_UWORD; /* 16 bits */
  38 typedef UINT32        cab_ULONG; /* 32 bits */
  39 typedef INT32         cab_LONG;  /* 32 bits */
  40
  41 typedef UINT32        cab_off_t;
  42
  43 /* number of bits in a ULONG */
  44 #ifndef CHAR_BIT
  45 # define CHAR_BIT (8)
  46 #endif
  47 #define CAB_ULONG_BITS (sizeof(cab_ULONG) * CHAR_BIT)
  48
  49 /* structure offsets */
  50 #define cfhead_Signature         (0x00)
  51 #define cfhead_CabinetSize       (0x08)
  52 #define cfhead_FileOffset        (0x10)
  53 #define cfhead_MinorVersion      (0x18)
  54 #define cfhead_MajorVersion      (0x19)
  55 #define cfhead_NumFolders        (0x1A)
  56 #define cfhead_NumFiles          (0x1C)
  57 #define cfhead_Flags             (0x1E)
  58 #define cfhead_SetID             (0x20)
  59 #define cfhead_CabinetIndex      (0x22)
  60 #define cfhead_SIZEOF            (0x24)
  61 #define cfheadext_HeaderReserved (0x00)
  62 #define cfheadext_FolderReserved (0x02)
  63 #define cfheadext_DataReserved   (0x03)
  64 #define cfheadext_SIZEOF         (0x04)
  65 #define cffold_DataOffset        (0x00)
  66 #define cffold_NumBlocks         (0x04)
  67 #define cffold_CompType          (0x06)
  68 #define cffold_SIZEOF            (0x08)
  69 #define cffile_UncompressedSize  (0x00)
  70 #define cffile_FolderOffset      (0x04)
  71 #define cffile_FolderIndex       (0x08)
  72 #define cffile_Date              (0x0A)
  73 #define cffile_Time              (0x0C)
  74 #define cffile_Attribs           (0x0E)
  75 #define cffile_SIZEOF            (0x10)
  76 #define cfdata_CheckSum          (0x00)
  77 #define cfdata_CompressedSize    (0x04)
  78 #define cfdata_UncompressedSize  (0x06)
  79 #define cfdata_SIZEOF            (0x08)
  80
  81 /* flags */
  82 #define cffoldCOMPTYPE_MASK            (0x000f)
  83 #define cffoldCOMPTYPE_NONE            (0x0000)
  84 #define cffoldCOMPTYPE_MSZIP           (0x0001)
  85 #define cffoldCOMPTYPE_QUANTUM         (0x0002)
  86 #define cffoldCOMPTYPE_LZX             (0x0003)
  87 #define cfheadPREV_CABINET             (0x0001)
  88 #define cfheadNEXT_CABINET             (0x0002)
  89 #define cfheadRESERVE_PRESENT          (0x0004)
  90 #define cffileCONTINUED_FROM_PREV      (0xFFFD)
  91 #define cffileCONTINUED_TO_NEXT        (0xFFFE)
  92 #define cffileCONTINUED_PREV_AND_NEXT  (0xFFFF)
  93 #define cffile_A_RDONLY                (0x01)
  94 #define cffile_A_HIDDEN                (0x02)
  95 #define cffile_A_SYSTEM                (0x04)
  96 #define cffile_A_ARCH                  (0x20)
  97 #define cffile_A_EXEC                  (0x40)
  98 #define cffile_A_NAME_IS_UTF           (0x80)
  99
 100 /****************************************************************************/
 101 /* our archiver information / state */
 102
 103 /* MSZIP stuff */
 104 #define ZIPWSIZE        0x8000  /* window size */
 105 #define ZIPLBITS        9       /* bits in base literal/length lookup table */
 106 #define ZIPDBITS        6       /* bits in base distance lookup table */
 107 #define ZIPBMAX         16      /* maximum bit length of any code */
 108 #define ZIPN_MAX        288     /* maximum number of codes in any set */
 109
 110 struct Ziphuft {
 111   cab_UBYTE e;                /* number of extra bits or operation */
 112   cab_UBYTE b;                /* number of bits in this code or subcode */
 113   union {
 114     cab_UWORD n;              /* literal, length base, or distance base */
 115     struct Ziphuft *t;        /* pointer to next level of table */
 116   } v;
 117 };
 118
 119 struct ZIPstate {
 120     cab_ULONG window_posn;      /* current offset within the window        */
 121     cab_ULONG bb;               /* bit buffer */
 122     cab_ULONG bk;               /* bits in bit buffer */
 123     cab_ULONG ll[288+32];       /* literal/length and distance code lengths */
 124     cab_ULONG c[ZIPBMAX+1];     /* bit length count table */
 125     cab_LONG  lx[ZIPBMAX+1];    /* memory for l[-1..ZIPBMAX-1] */
 126     struct Ziphuft *u[ZIPBMAX]; /* table stack */
 127     cab_ULONG v[ZIPN_MAX];      /* values in order of bit length */
 128     cab_ULONG x[ZIPBMAX+1];     /* bit offsets, then code stack */
 129     cab_UBYTE *inpos;
 130 };
 131
 132 /* Quantum stuff */
 133
 134 struct QTMmodelsym {
 135   cab_UWORD sym, cumfreq;
 136 };
 137
 138 struct QTMmodel {
 139   int shiftsleft, entries;
 140   struct QTMmodelsym *syms;
 141   cab_UWORD tabloc[256];
 142 };
 143
 144 struct QTMstate {
 145     cab_UBYTE *window;         /* the actual decoding window              */
 146     cab_ULONG window_size;     /* window size (1Kb through 2Mb)           */
 147     cab_ULONG actual_size;     /* window size when it was first allocated */
 148     cab_ULONG window_posn;     /* current offset within the window        */
 149
 150     struct QTMmodel model7;
 151     struct QTMmodelsym m7sym[7+1];
 152
 153     struct QTMmodel model4, model5, model6pos, model6len;
 154     struct QTMmodelsym m4sym[0x18 + 1];
 155     struct QTMmodelsym m5sym[0x24 + 1];
 156     struct QTMmodelsym m6psym[0x2a + 1], m6lsym[0x1b + 1];
 157
 158     struct QTMmodel model00, model40, model80, modelC0;
 159     struct QTMmodelsym m00sym[0x40 + 1], m40sym[0x40 + 1];
 160     struct QTMmodelsym m80sym[0x40 + 1], mC0sym[0x40 + 1];
 161 };
 162
 163 /* LZX stuff */
 164
 165 /* some constants defined by the LZX specification */
 166 #define LZX_MIN_MATCH                (2)
 167 #define LZX_MAX_MATCH                (257)
 168 #define LZX_NUM_CHARS                (256)
 169 #define LZX_BLOCKTYPE_INVALID        (0)   /* also blocktypes 4-7 invalid */
 170 #define LZX_BLOCKTYPE_VERBATIM       (1)
 171 #define LZX_BLOCKTYPE_ALIGNED        (2)
 172 #define LZX_BLOCKTYPE_UNCOMPRESSED   (3)
 173 #define LZX_PRETREE_NUM_ELEMENTS     (20)
 174 #define LZX_ALIGNED_NUM_ELEMENTS     (8)   /* aligned offset tree #elements */
 175 #define LZX_NUM_PRIMARY_LENGTHS      (7)   /* this one missing from spec! */
 176 #define LZX_NUM_SECONDARY_LENGTHS    (249) /* length tree #elements */
 177
 178 /* LZX huffman defines: tweak tablebits as desired */
 179 #define LZX_PRETREE_MAXSYMBOLS  (LZX_PRETREE_NUM_ELEMENTS)
 180 #define LZX_PRETREE_TABLEBITS   (6)
 181 #define LZX_MAINTREE_MAXSYMBOLS (LZX_NUM_CHARS + 50*8)
 182 #define LZX_MAINTREE_TABLEBITS  (12)
 183 #define LZX_LENGTH_MAXSYMBOLS   (LZX_NUM_SECONDARY_LENGTHS+1)
 184 #define LZX_LENGTH_TABLEBITS    (12)
 185 #define LZX_ALIGNED_MAXSYMBOLS  (LZX_ALIGNED_NUM_ELEMENTS)
 186 #define LZX_ALIGNED_TABLEBITS   (7)
 187
 188 #define LZX_LENTABLE_SAFETY (64) /* we allow length table decoding overruns */
 189
 190 #define LZX_DECLARE_TABLE(tbl) \
 191   cab_UWORD tbl##_table[(1<<LZX_##tbl##_TABLEBITS) + (LZX_##tbl##_MAXSYMBOLS<<1)];\
 192   cab_UBYTE tbl##_len  [LZX_##tbl##_MAXSYMBOLS + LZX_LENTABLE_SAFETY]
 193
 194 struct LZXstate {
 195     cab_UBYTE *window;         /* the actual decoding window              */
 196     cab_ULONG window_size;     /* window size (32Kb through 2Mb)          */
 197     cab_ULONG actual_size;     /* window size when it was first allocated */
 198     cab_ULONG window_posn;     /* current offset within the window        */
 199     cab_ULONG R0, R1, R2;      /* for the LRU offset system               */
 200     cab_UWORD main_elements;   /* number of main tree elements            */
 201     int   header_read;         /* have we started decoding at all yet?    */
 202     cab_UWORD block_type;      /* type of this block                      */
 203     cab_ULONG block_length;    /* uncompressed length of this block       */
 204     cab_ULONG block_remaining; /* uncompressed bytes still left to decode */
 205     cab_ULONG frames_read;     /* the number of CFDATA blocks processed   */
 206     cab_LONG  intel_filesize;  /* magic header value used for transform   */
 207     cab_LONG  intel_curpos;    /* current offset in transform space       */
 208     int   intel_started;       /* have we seen any translatable data yet? */
 209
 210     LZX_DECLARE_TABLE(PRETREE);
 211     LZX_DECLARE_TABLE(MAINTREE);
 212     LZX_DECLARE_TABLE(LENGTH);
 213     LZX_DECLARE_TABLE(ALIGNED);
 214 };
 215
 216 struct lzx_bits {
 217   cab_ULONG bb;
 218   int bl;
 219   cab_UBYTE *ip;
 220 };
 221
 222 /* CAB data blocks are <= 32768 bytes in uncompressed form. Uncompressed
 223  * blocks have zero growth. MSZIP guarantees that it won't grow above
 224  * uncompressed size by more than 12 bytes. LZX guarantees it won't grow
 225  * more than 6144 bytes.
 226  */
 227 #define CAB_BLOCKMAX (32768)
 228 #define CAB_INPUTMAX (CAB_BLOCKMAX+6144)
 229
 230 struct cab_file {
 231   struct cab_file *next;               /* next file in sequence          */
 232   struct cab_folder *folder;           /* folder that contains this file */
 233   LPCSTR filename;                     /* output name of file            */
 234   HANDLE fh;                           /* open file handle or NULL       */
 235   cab_ULONG length;                    /* uncompressed length of file    */
 236   cab_ULONG offset;                    /* uncompressed offset in folder  */
 237   cab_UWORD index;                     /* magic index number of folder   */
 238   cab_UWORD time, date, attribs;       /* MS-DOS time/date/attributes    */
 239 };
 240
 241
 242 struct cab_folder {
 243   struct cab_folder *next;
 244   struct cabinet *cab[CAB_SPLITMAX];   /* cabinet(s) this folder spans   */
 245   cab_off_t offset[CAB_SPLITMAX];      /* offset to data blocks          */
 246   cab_UWORD comp_type;                 /* compression format/window size */
 247   cab_ULONG comp_size;                 /* compressed size of folder      */
 248   cab_UBYTE num_splits;                /* number of split blocks + 1     */
 249   cab_UWORD num_blocks;                /* total number of blocks         */
 250   struct cab_file *contfile;           /* the first split file           */
 251 };
 252
 253 struct cabinet {
 254   struct cabinet *next;                /* for making a list of cabinets  */
 255   LPCSTR filename;                     /* input name of cabinet          */
 256   HANDLE *fh;                          /* open file handle or NULL       */
 257   cab_off_t filelen;                   /* length of cabinet file         */
 258   cab_off_t blocks_off;                /* offset to data blocks in file  */
 259   struct cabinet *prevcab, *nextcab;   /* multipart cabinet chains       */
 260   char *prevname, *nextname;           /* and their filenames            */
 261   char *previnfo, *nextinfo;           /* and their visible names        */
 262   struct cab_folder *folders;          /* first folder in this cabinet   */
 263   struct cab_file *files;              /* first file in this cabinet     */
 264   cab_UBYTE block_resv;                /* reserved space in datablocks   */
 265   cab_UBYTE flags;                     /* header flags                   */
 266 };
 267
 268 typedef struct cds_forward {
 269   struct cab_folder *current;      /* current folder we're extracting from  */
 270   cab_ULONG offset;                /* uncompressed offset within folder     */
 271   cab_UBYTE *outpos;               /* (high level) start of data to use up  */
 272   cab_UWORD outlen;                /* (high level) amount of data to use up */
 273   cab_UWORD split;                 /* at which split in current folder?     */
 274   int (*decompress)(int, int, struct cds_forward *); /* chosen compress fn  */
 275   cab_UBYTE inbuf[CAB_INPUTMAX+2]; /* +2 for lzx bitbuffer overflows!       */
 276   cab_UBYTE outbuf[CAB_BLOCKMAX];
 277   cab_UBYTE q_length_base[27], q_length_extra[27], q_extra_bits[42];
 278   cab_ULONG q_position_base[42];
 279   cab_ULONG lzx_position_base[51];
 280   cab_UBYTE extra_bits[51];
 281   union {
 282     struct ZIPstate zip;
 283     struct QTMstate qtm;
 284     struct LZXstate lzx;
 285   } methods;
 286 } cab_decomp_state;
 287
 288 /*
 289  * the rest of these are somewhat kludgy macros which are shared between fdi.c
 290  * and cabextract.c.
 291  */
 292
 293 /* Bitstream reading macros (Quantum / normal byte order)
 294  *
 295  * Q_INIT_BITSTREAM    should be used first to set up the system
 296  * Q_READ_BITS(var,n)  takes N bits from the buffer and puts them in var.
 297  *                     unlike LZX, this can loop several times to get the
 298  *                     requisite number of bits.
 299  * Q_FILL_BUFFER       adds more data to the bit buffer, if there is room
 300  *                     for another 16 bits.
 301  * Q_PEEK_BITS(n)      extracts (without removing) N bits from the bit
 302  *                     buffer
 303  * Q_REMOVE_BITS(n)    removes N bits from the bit buffer
 304  *
 305  * These bit access routines work by using the area beyond the MSB and the
 306  * LSB as a free source of zeroes. This avoids having to mask any bits.
 307  * So we have to know the bit width of the bitbuffer variable. This is
 308  * defined as ULONG_BITS.
 309  *
 310  * ULONG_BITS should be at least 16 bits. Unlike LZX's Huffman decoding,
 311  * Quantum's arithmetic decoding only needs 1 bit at a time, it doesn't
 312  * need an assured number. Retrieving larger bitstrings can be done with
 313  * multiple reads and fills of the bitbuffer. The code should work fine
 314  * for machines where ULONG >= 32 bits.
 315  *
 316  * Also note that Quantum reads bytes in normal order; LZX is in
 317  * little-endian order.
 318  */
 319
 320 #define Q_INIT_BITSTREAM do { bitsleft = 0; bitbuf = 0; } while (0)
 321
 322 #define Q_FILL_BUFFER do {                                                  \
 323   if (bitsleft <= (CAB_ULONG_BITS - 16)) {                                  \
 324     bitbuf |= ((inpos[0]<<8)|inpos[1]) << (CAB_ULONG_BITS-16 - bitsleft);   \
 325     bitsleft += 16; inpos += 2;                                             \
 326   }                                                                         \
 327 } while (0)
 328
 329 #define Q_PEEK_BITS(n)   (bitbuf >> (CAB_ULONG_BITS - (n)))
 330 #define Q_REMOVE_BITS(n) ((bitbuf <<= (n)), (bitsleft -= (n)))
 331
 332 #define Q_READ_BITS(v,n) do {                                           \
 333   (v) = 0;                                                              \
 334   for (bitsneed = (n); bitsneed; bitsneed -= bitrun) {                  \
 335     Q_FILL_BUFFER;                                                      \
 336     bitrun = (bitsneed > bitsleft) ? bitsleft : bitsneed;               \
 337     (v) = ((v) << bitrun) | Q_PEEK_BITS(bitrun);                        \
 338     Q_REMOVE_BITS(bitrun);                                              \
 339   }                                                                     \
 340 } while (0)
 341
 342 #define Q_MENTRIES(model) (QTM(model).entries)
 343 #define Q_MSYM(model,symidx) (QTM(model).syms[(symidx)].sym)
 344 #define Q_MSYMFREQ(model,symidx) (QTM(model).syms[(symidx)].cumfreq)
 345
 346 /* GET_SYMBOL(model, var) fetches the next symbol from the stated model
 347  * and puts it in var. it may need to read the bitstream to do this.
 348  */
 349 #define GET_SYMBOL(m, var) do {                                         \
 350   range =  ((H - L) & 0xFFFF) + 1;                                      \
 351   symf = ((((C - L + 1) * Q_MSYMFREQ(m,0)) - 1) / range) & 0xFFFF;      \
 352                                                                         \
 353   for (i=1; i < Q_MENTRIES(m); i++) {                                   \
 354     if (Q_MSYMFREQ(m,i) <= symf) break;                                 \
 355   }                                                                     \
 356   (var) = Q_MSYM(m,i-1);                                                \
 357                                                                         \
 358   range = (H - L) + 1;                                                  \
 359   H = L + ((Q_MSYMFREQ(m,i-1) * range) / Q_MSYMFREQ(m,0)) - 1;          \
 360   L = L + ((Q_MSYMFREQ(m,i)   * range) / Q_MSYMFREQ(m,0));              \
 361   while (1) {                                                           \
 362     if ((L & 0x8000) != (H & 0x8000)) {                                 \
 363       if ((L & 0x4000) && !(H & 0x4000)) {                              \
 364         /* underflow case */                                            \
 365         C ^= 0x4000; L &= 0x3FFF; H |= 0x4000;                          \
 366       }                                                                 \
 367       else break;                                                       \
 368     }                                                                   \
 369     L <<= 1; H = (H << 1) | 1;                                          \
 370     Q_FILL_BUFFER;                                                      \
 371     C  = (C << 1) | Q_PEEK_BITS(1);                                     \
 372     Q_REMOVE_BITS(1);                                                   \
 373   }                                                                     \
 374                                                                         \
 375   QTMupdatemodel(&(QTM(m)), i);                                         \
 376 } while (0)
 377
 378 /* Bitstream reading macros (LZX / intel little-endian byte order)
 379  *
 380  * INIT_BITSTREAM    should be used first to set up the system
 381  * READ_BITS(var,n)  takes N bits from the buffer and puts them in var
 382  *
 383  * ENSURE_BITS(n)    ensures there are at least N bits in the bit buffer.
 384  *                   it can guarantee up to 17 bits (i.e. it can read in
 385  *                   16 new bits when there is down to 1 bit in the buffer,
 386  *                   and it can read 32 bits when there are 0 bits in the
 387  *                   buffer).
 388  * PEEK_BITS(n)      extracts (without removing) N bits from the bit buffer
 389  * REMOVE_BITS(n)    removes N bits from the bit buffer
 390  *
 391  * These bit access routines work by using the area beyond the MSB and the
 392  * LSB as a free source of zeroes. This avoids having to mask any bits.
 393  * So we have to know the bit width of the bitbuffer variable.
 394  */
 395
 396 #define INIT_BITSTREAM do { bitsleft = 0; bitbuf = 0; } while (0)
 397
 398 /* Quantum reads bytes in normal order; LZX is little-endian order */
 399 #define ENSURE_BITS(n)                                                    \
 400   while (bitsleft < (n)) {                                                \
 401     bitbuf |= ((inpos[1]<<8)|inpos[0]) << (CAB_ULONG_BITS-16 - bitsleft); \
 402     bitsleft += 16; inpos+=2;                                             \
 403   }
 404
 405 #define PEEK_BITS(n)   (bitbuf >> (CAB_ULONG_BITS - (n)))
 406 #define REMOVE_BITS(n) ((bitbuf <<= (n)), (bitsleft -= (n)))
 407
 408 #define READ_BITS(v,n) do {                                             \
 409   if (n) {                                                              \
 410     ENSURE_BITS(n);                                                     \
 411     (v) = PEEK_BITS(n);                                                 \
 412     REMOVE_BITS(n);                                                     \
 413   }                                                                     \
 414   else {                                                                \
 415     (v) = 0;                                                            \
 416   }                                                                     \
 417 } while (0)
 418
 419 /* Huffman macros */
 420
 421 #define TABLEBITS(tbl)   (LZX_##tbl##_TABLEBITS)
 422 #define MAXSYMBOLS(tbl)  (LZX_##tbl##_MAXSYMBOLS)
 423 #define SYMTABLE(tbl)    (LZX(tbl##_table))
 424 #define LENTABLE(tbl)    (LZX(tbl##_len))
 425
 426 /* BUILD_TABLE(tablename) builds a huffman lookup table from code lengths.
 427  * In reality, it just calls make_decode_table() with the appropriate
 428  * values - they're all fixed by some #defines anyway, so there's no point
 429  * writing each call out in full by hand.
 430  */
 431 #define BUILD_TABLE(tbl)                                                \
 432   if (make_decode_table(                                                \
 433     MAXSYMBOLS(tbl), TABLEBITS(tbl), LENTABLE(tbl), SYMTABLE(tbl)       \
 434   )) { return DECR_ILLEGALDATA; }
 435
 436 /* READ_HUFFSYM(tablename, var) decodes one huffman symbol from the
 437  * bitstream using the stated table and puts it in var.
 438  */
 439 #define READ_HUFFSYM(tbl,var) do {                                      \
 440   ENSURE_BITS(16);                                                      \
 441   hufftbl = SYMTABLE(tbl);                                              \
 442   if ((i = hufftbl[PEEK_BITS(TABLEBITS(tbl))]) >= MAXSYMBOLS(tbl)) {    \
 443     j = 1 << (CAB_ULONG_BITS - TABLEBITS(tbl));                         \
 444     do {                                                                \
 445       j >>= 1; i <<= 1; i |= (bitbuf & j) ? 1 : 0;                      \
 446       if (!j) { return DECR_ILLEGALDATA; }                              \
 447     } while ((i = hufftbl[i]) >= MAXSYMBOLS(tbl));                      \
 448   }                                                                     \
 449   j = LENTABLE(tbl)[(var) = i];                                         \
 450   REMOVE_BITS(j);                                                       \
 451 } while (0)
 452
 453 /* READ_LENGTHS(tablename, first, last) reads in code lengths for symbols
 454  * first to last in the given table. The code lengths are stored in their
 455  * own special LZX way.
 456  */
 457 #define READ_LENGTHS(tbl,first,last,fn) do { \
 458   lb.bb = bitbuf; lb.bl = bitsleft; lb.ip = inpos; \
 459   if (fn(LENTABLE(tbl),(first),(last),&lb,decomp_state)) { \
 460     return DECR_ILLEGALDATA; \
 461   } \
 462   bitbuf = lb.bb; bitsleft = lb.bl; inpos = lb.ip; \
 463 } while (0)
 464
 465 /* Tables for deflate from PKZIP's appnote.txt. */
 466
 467 #define THOSE_ZIP_CONSTS                                                           \
 468 static const cab_UBYTE Zipborder[] = /* Order of the bit length code lengths */    \
 469 { 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};               \
 470 static const cab_UWORD Zipcplens[] = /* Copy lengths for literal codes 257..285 */ \
 471 { 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, 35, 43, 51,             \
 472  59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0};                              \
 473 static const cab_UWORD Zipcplext[] = /* Extra bits for literal codes 257..285 */   \
 474 { 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4,             \
 475   4, 5, 5, 5, 5, 0, 99, 99}; /* 99==invalid */                                     \
 476 static const cab_UWORD Zipcpdist[] = /* Copy offsets for distance codes 0..29 */   \
 477 { 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385,             \
 478 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577};          \
 479 static const cab_UWORD Zipcpdext[] = /* Extra bits for distance codes */           \
 480 { 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10,            \
 481 10, 11, 11, 12, 12, 13, 13};                                                       \
 482 /* And'ing with Zipmask[n] masks the lower n bits */                               \
 483 static const cab_UWORD Zipmask[17] = {                                             \
 484  0x0000, 0x0001, 0x0003, 0x0007, 0x000f, 0x001f, 0x003f, 0x007f, 0x00ff,           \
 485  0x01ff, 0x03ff, 0x07ff, 0x0fff, 0x1fff, 0x3fff, 0x7fff, 0xffff                    \
 486 }
 487
 488 /* SESSION Operation */
 489 #define EXTRACT_FILLFILELIST  0x00000001
 490 #define EXTRACT_EXTRACTFILES  0x00000002
 491
 492 struct FILELIST{
 493     LPSTR FileName;
 494     struct FILELIST *next;
 495     BOOL DoExtract;
 496 };
 497
 498 typedef struct {
 499     INT FileSize;
 500     ERF Error;
 501     struct FILELIST *FileList;
 502     INT FileCount;
 503     INT Operation;
 504     CHAR Destination[MAX_PATH];
 505     CHAR CurrentFile[MAX_PATH];
 506     CHAR Reserved[MAX_PATH];
 507     struct FILELIST *FilterList;
 508 } SESSION;
 509
 510 #endif /* __WINE_CABINET_H */