dlls/lzexpand/lzexpand_main.c

   1 /*
   2  * LZ Decompression functions
   3  *
   4  * Copyright 1996 Marcus Meissner
   5  */
   6 /*
   7  * FIXME: return values might be wrong
   8  */
   9
  10 #include <string.h>
  11 #include <ctype.h>
  12 #include <sys/types.h>
  13 #include <unistd.h>
  14 #include "windef.h"
  15 #include "winbase.h"
  16 #include "wine/winbase16.h"
  17 #include "wine/unicode.h"
  18 #include "lzexpand.h"
  19 #include "debugtools.h"
  20
  21 DEFAULT_DEBUG_CHANNEL(file);
  22
  23 LONG     WINAPI CopyLZFile16(HFILE16,HFILE16);
  24 INT16    WINAPI GetExpandedName16(LPCSTR,LPSTR);
  25 void     WINAPI LZClose16(HFILE16);
  26 LONG     WINAPI LZCopy16(HFILE16,HFILE16);
  27 HFILE16  WINAPI LZInit16(HFILE16);
  28 HFILE16  WINAPI LZOpenFile16(LPCSTR,LPOFSTRUCT,UINT16);
  29 INT16    WINAPI LZRead16(HFILE16,LPVOID,UINT16);
  30 LONG     WINAPI LZSeek16(HFILE16,LONG,INT16);
  31 INT16    WINAPI LZStart16(void);
  32
  33 /* The readahead length of the decompressor. Reading single bytes
  34  * using _lread() would be SLOW.
  35  */
  36 #define GETLEN  2048
  37
  38 /* Format of first 14 byte of LZ compressed file */
  39 struct lzfileheader {
  40         BYTE    magic[8];
  41         BYTE    compressiontype;
  42         CHAR    lastchar;
  43         DWORD   reallength;
  44 };
  45 static BYTE LZMagic[8]={'S','Z','D','D',0x88,0xf0,0x27,0x33};
  46
  47 struct lzstate {
  48         HFILE   realfd;         /* the real filedescriptor */
  49         CHAR    lastchar;       /* the last char of the filename */
  50
  51         DWORD   reallength;     /* the decompressed length of the file */
  52         DWORD   realcurrent;    /* the position the decompressor currently is */
  53         DWORD   realwanted;     /* the position the user wants to read from */
  54
  55         BYTE    table[0x1000];  /* the rotating LZ table */
  56         UINT    curtabent;      /* CURrent TABle ENTry */
  57
  58         BYTE    stringlen;      /* length and position of current string */
  59         DWORD   stringpos;      /* from stringtable */
  60
  61
  62         WORD    bytetype;       /* bitmask within blocks */
  63
  64         BYTE    *get;           /* GETLEN bytes */
  65         DWORD   getcur;         /* current read */
  66         DWORD   getlen;         /* length last got */
  67 };
  68
  69 #define MAX_LZSTATES 16
  70 static struct lzstate *lzstates[MAX_LZSTATES];
  71
  72 #define IS_LZ_HANDLE(h) (((h) >= 0x400) && ((h) < 0x400+MAX_LZSTATES))
  73 #define GET_LZ_STATE(h) (IS_LZ_HANDLE(h) ? lzstates[(h)-0x400] : NULL)
  74
  75 /* reads one compressed byte, including buffering */
  76 #define GET(lzs,b)      _lzget(lzs,&b)
  77 #define GET_FLUSH(lzs)  lzs->getcur=lzs->getlen;
  78
  79 static int
  80 _lzget(struct lzstate *lzs,BYTE *b) {
  81         if (lzs->getcur<lzs->getlen) {
  82                 *b              = lzs->get[lzs->getcur++];
  83                 return          1;
  84         } else {
  85                 int ret = _lread(lzs->realfd,lzs->get,GETLEN);
  86                 if (ret==HFILE_ERROR)
  87                         return HFILE_ERROR;
  88                 if (ret==0)
  89                         return 0;
  90                 lzs->getlen     = ret;
  91                 lzs->getcur     = 1;
  92                 *b              = *(lzs->get);
  93                 return 1;
  94         }
  95 }
  96 /* internal function, reads lzheader
  97  * returns BADINHANDLE for non filedescriptors
  98  * return 0 for file not compressed using LZ
  99  * return UNKNOWNALG for unknown algorithm
 100  * returns lzfileheader in *head
 101  */
 102 static INT read_header(HFILE fd,struct lzfileheader *head)
 103 {
 104         BYTE    buf[14];
 105
 106         if (_llseek(fd,0,SEEK_SET)==-1)
 107                 return LZERROR_BADINHANDLE;
 108
 109         /* We can't directly read the lzfileheader struct due to
 110          * structure element alignment
 111          */
 112         if (_lread(fd,buf,14)<14)
 113                 return 0;
 114         memcpy(head->magic,buf,8);
 115         memcpy(&(head->compressiontype),buf+8,1);
 116         memcpy(&(head->lastchar),buf+9,1);
 117
 118         /* FIXME: consider endianess on non-intel architectures */
 119         memcpy(&(head->reallength),buf+10,4);
 120
 121         if (memcmp(head->magic,LZMagic,8))
 122                 return 0;
 123         if (head->compressiontype!='A')
 124                 return LZERROR_UNKNOWNALG;
 125         return 1;
 126 }
 127
 128 /***********************************************************************
 129  *           LZStart16   (LZEXPAND.7)
 130  */
 131 INT16 WINAPI LZStart16(void)
 132 {
 133     TRACE("(void)\n");
 134     return 1;
 135 }
 136
 137
 138 /***********************************************************************
 139  *           LZStart   (LZ32.6)
 140  */
 141 INT WINAPI LZStart(void)
 142 {
 143     TRACE("(void)\n");
 144     return 1;
 145 }
 146
 147
 148 /***********************************************************************
 149  *           LZInit16   (LZEXPAND.3)
 150  */
 151 HFILE16 WINAPI LZInit16( HFILE16 hfSrc )
 152 {
 153     HFILE ret = LZInit( DosFileHandleToWin32Handle(hfSrc) );
 154     if (IS_LZ_HANDLE(ret)) return ret;
 155     if ((INT)ret <= 0) return ret;
 156     return hfSrc;
 157 }
 158
 159
 160 /***********************************************************************
 161  *           LZInit   (LZ32.2)
 162  *
 163  * initializes internal decompression buffers, returns lzfiledescriptor.
 164  * (return value the same as hfSrc, if hfSrc is not compressed)
 165  * on failure, returns error code <0
 166  * lzfiledescriptors range from 0x400 to 0x410 (only 16 open files per process)
 167  *
 168  * since _llseek uses the same types as libc.lseek, we just use the macros of
 169  *  libc
 170  */
 171 HFILE WINAPI LZInit( HFILE hfSrc )
 172 {
 173
 174         struct  lzfileheader    head;
 175         struct  lzstate         *lzs;
 176         DWORD   ret;
 177         int i;
 178
 179         TRACE("(%d)\n",hfSrc);
 180         ret=read_header(hfSrc,&head);
 181         if (ret<=0) {
 182                 _llseek(hfSrc,0,SEEK_SET);
 183                 return ret?ret:hfSrc;
 184         }
 185         for (i = 0; i < MAX_LZSTATES; i++) if (!lzstates[i]) break;
 186         if (i == MAX_LZSTATES) return LZERROR_GLOBALLOC;
 187         lzstates[i] = lzs = HeapAlloc( GetProcessHeap(), 0, sizeof(struct lzstate) );
 188         if(lzs == NULL) return LZERROR_GLOBALLOC;
 189
 190         memset(lzs,'\0',sizeof(*lzs));
 191         lzs->realfd     = hfSrc;
 192         lzs->lastchar   = head.lastchar;
 193         lzs->reallength = head.reallength;
 194
 195         lzs->get        = HeapAlloc( GetProcessHeap(), 0, GETLEN );
 196         lzs->getlen     = 0;
 197         lzs->getcur     = 0;
 198
 199         if(lzs->get == NULL) {
 200                 HeapFree(GetProcessHeap(), 0, lzs);
 201                 lzstates[i] = NULL;
 202                 return LZERROR_GLOBALLOC;
 203         }
 204
 205         /* Yes, preinitialize with spaces */
 206         memset(lzs->table,' ',0x1000);
 207         /* Yes, start 16 byte from the END of the table */
 208         lzs->curtabent  = 0xff0;
 209         return 0x400 + i;
 210 }
 211
 212
 213 /***********************************************************************
 214  *           LZDone   (LZEXPAND.9) (LZ32.8)
 215  */
 216 void WINAPI LZDone(void)
 217 {
 218     TRACE("(void)\n");
 219 }
 220
 221
 222 /***********************************************************************
 223  *           GetExpandedName16   (LZEXPAND.10)
 224  */
 225 INT16 WINAPI GetExpandedName16( LPCSTR in, LPSTR out )
 226 {
 227     return (INT16)GetExpandedNameA( in, out );
 228 }
 229
 230
 231 /***********************************************************************
 232  *           GetExpandedNameA   (LZ32.9)
 233  *
 234  * gets the full filename of the compressed file 'in' by opening it
 235  * and reading the header
 236  *
 237  * "file." is being translated to "file"
 238  * "file.bl_" (with lastchar 'a') is being translated to "file.bla"
 239  * "FILE.BL_" (with lastchar 'a') is being translated to "FILE.BLA"
 240  */
 241
 242 INT WINAPI GetExpandedNameA( LPCSTR in, LPSTR out )
 243 {
 244         struct lzfileheader     head;
 245         HFILE           fd;
 246         OFSTRUCT        ofs;
 247         INT             fnislowercased,ret,len;
 248         LPSTR           s,t;
 249
 250         TRACE("(%s)\n",in);
 251         fd=OpenFile(in,&ofs,OF_READ);
 252         if (fd==HFILE_ERROR)
 253                 return (INT)(INT16)LZERROR_BADINHANDLE;
 254         strcpy(out,in);
 255         ret=read_header(fd,&head);
 256         if (ret<=0) {
 257                 /* not a LZ compressed file, so the expanded name is the same
 258                  * as the input name */
 259                 _lclose(fd);
 260                 return 1;
 261         }
 262
 263
 264         /* look for directory prefix and skip it. */
 265         s=out;
 266         while (NULL!=(t=strpbrk(s,"/\\:")))
 267                 s=t+1;
 268
 269         /* now mangle the basename */
 270         if (!*s) {
 271                 /* FIXME: hmm. shouldn't happen? */
 272                 WARN("Specified a directory or what? (%s)\n",in);
 273                 _lclose(fd);
 274                 return 1;
 275         }
 276         /* see if we should use lowercase or uppercase on the last char */
 277         fnislowercased=1;
 278         t=s+strlen(s)-1;
 279         while (t>=out) {
 280                 if (!isalpha(*t)) {
 281                         t--;
 282                         continue;
 283                 }
 284                 fnislowercased=islower(*t);
 285                 break;
 286         }
 287         if (isalpha(head.lastchar)) {
 288                 if (fnislowercased)
 289                         head.lastchar=tolower(head.lastchar);
 290                 else
 291                         head.lastchar=toupper(head.lastchar);
 292         }
 293
 294         /* now look where to replace the last character */
 295         if (NULL!=(t=strchr(s,'.'))) {
 296                 if (t[1]=='\0') {
 297                         t[0]='\0';
 298                 } else {
 299                         len=strlen(t)-1;
 300                         if (t[len]=='_')
 301                                 t[len]=head.lastchar;
 302                 }
 303         } /* else no modification necessary */
 304         _lclose(fd);
 305         return 1;
 306 }
 307
 308
 309 /***********************************************************************
 310  *           GetExpandedNameW   (LZ32.11)
 311  */
 312 INT WINAPI GetExpandedNameW( LPCWSTR in, LPWSTR out )
 313 {
 314     INT ret;
 315     DWORD len = WideCharToMultiByte( CP_ACP, 0, in, -1, NULL, 0, NULL, NULL );
 316     char *xin = HeapAlloc( GetProcessHeap(), 0, len );
 317     char *xout = HeapAlloc( GetProcessHeap(), 0, len+3 );
 318     WideCharToMultiByte( CP_ACP, 0, in, -1, xin, len, NULL, NULL );
 319     if ((ret = GetExpandedNameA( xin, xout )) > 0)
 320         MultiByteToWideChar( CP_ACP, 0, xout, -1, out, strlenW(in)+4 );
 321     HeapFree( GetProcessHeap(), 0, xin );
 322     HeapFree( GetProcessHeap(), 0, xout );
 323     return ret;
 324 }
 325
 326
 327 /***********************************************************************
 328  *           LZRead16   (LZEXPAND.5)
 329  */
 330 INT16 WINAPI LZRead16( HFILE16 fd, LPVOID buf, UINT16 toread )
 331 {
 332     if (IS_LZ_HANDLE(fd)) return LZRead( fd, buf, toread );
 333     return _lread( DosFileHandleToWin32Handle(fd), buf, toread );
 334 }
 335
 336
 337 /***********************************************************************
 338  *           LZRead   (LZ32.4)
 339  */
 340 INT WINAPI LZRead( HFILE fd, LPVOID vbuf, UINT toread )
 341 {
 342         int     howmuch;
 343         BYTE    b,*buf;
 344         struct  lzstate *lzs;
 345
 346         buf=(LPBYTE)vbuf;
 347         TRACE("(%d,%p,%d)\n",fd,buf,toread);
 348         howmuch=toread;
 349         if (!(lzs = GET_LZ_STATE(fd))) return _lread(fd,buf,toread);
 350
 351 /* The decompressor itself is in a define, cause we need it twice
 352  * in this function. (the decompressed byte will be in b)
 353  */
 354 #define DECOMPRESS_ONE_BYTE                                             \
 355                 if (lzs->stringlen) {                                   \
 356                         b               = lzs->table[lzs->stringpos];   \
 357                         lzs->stringpos  = (lzs->stringpos+1)&0xFFF;     \
 358                         lzs->stringlen--;                               \
 359                 } else {                                                \
 360                         if (!(lzs->bytetype&0x100)) {                   \
 361                                 if (1!=GET(lzs,b))                      \
 362                                         return toread-howmuch;          \
 363                                 lzs->bytetype = b|0xFF00;               \
 364                         }                                               \
 365                         if (lzs->bytetype & 1) {                        \
 366                                 if (1!=GET(lzs,b))                      \
 367                                         return toread-howmuch;          \
 368                         } else {                                        \
 369                                 BYTE    b1,b2;                          \
 370                                                                         \
 371                                 if (1!=GET(lzs,b1))                     \
 372                                         return toread-howmuch;          \
 373                                 if (1!=GET(lzs,b2))                     \
 374                                         return toread-howmuch;          \
 375                                 /* Format:                              \
 376                                  * b1 b2                                \
 377                                  * AB CD                                \
 378                                  * where CAB is the stringoffset in the table\
 379                                  * and D+3 is the len of the string     \
 380                                  */                                     \
 381                                 lzs->stringpos  = b1|((b2&0xf0)<<4);    \
 382                                 lzs->stringlen  = (b2&0xf)+2;           \
 383                                 /* 3, but we use a  byte already below ... */\
 384                                 b               = lzs->table[lzs->stringpos];\
 385                                 lzs->stringpos  = (lzs->stringpos+1)&0xFFF;\
 386                         }                                               \
 387                         lzs->bytetype>>=1;                              \
 388                 }                                                       \
 389                 /* store b in table */                                  \
 390                 lzs->table[lzs->curtabent++]= b;                        \
 391                 lzs->curtabent  &= 0xFFF;                               \
 392                 lzs->realcurrent++;
 393
 394         /* if someone has seeked, we have to bring the decompressor
 395          * to that position
 396          */
 397         if (lzs->realcurrent!=lzs->realwanted) {
 398                 /* if the wanted position is before the current position
 399                  * I see no easy way to unroll ... We have to restart at
 400                  * the beginning. *sigh*
 401                  */
 402                 if (lzs->realcurrent>lzs->realwanted) {
 403                         /* flush decompressor state */
 404                         _llseek(lzs->realfd,14,SEEK_SET);
 405                         GET_FLUSH(lzs);
 406                         lzs->realcurrent= 0;
 407                         lzs->bytetype   = 0;
 408                         lzs->stringlen  = 0;
 409                         memset(lzs->table,' ',0x1000);
 410                         lzs->curtabent  = 0xFF0;
 411                 }
 412                 while (lzs->realcurrent<lzs->realwanted) {
 413                         DECOMPRESS_ONE_BYTE;
 414                 }
 415         }
 416
 417         while (howmuch) {
 418                 DECOMPRESS_ONE_BYTE;
 419                 lzs->realwanted++;
 420                 *buf++          = b;
 421                 howmuch--;
 422         }
 423         return  toread;
 424 #undef DECOMPRESS_ONE_BYTE
 425 }
 426
 427
 428 /***********************************************************************
 429  *           LZSeek16   (LZEXPAND.4)
 430  */
 431 LONG WINAPI LZSeek16( HFILE16 fd, LONG off, INT16 type )
 432 {
 433     if (IS_LZ_HANDLE(fd)) return LZSeek( fd, off, type );
 434     return _llseek( DosFileHandleToWin32Handle(fd), off, type );
 435 }
 436
 437
 438 /***********************************************************************
 439  *           LZSeek   (LZ32.3)
 440  */
 441 LONG WINAPI LZSeek( HFILE fd, LONG off, INT type )
 442 {
 443         struct  lzstate *lzs;
 444         LONG    newwanted;
 445
 446         TRACE("(%d,%ld,%d)\n",fd,off,type);
 447         /* not compressed? just use normal _llseek() */
 448         if (!(lzs = GET_LZ_STATE(fd))) return _llseek(fd,off,type);
 449         newwanted = lzs->realwanted;
 450         switch (type) {
 451         case 1: /* SEEK_CUR */
 452                 newwanted      += off;
 453                 break;
 454         case 2: /* SEEK_END */
 455                 newwanted       = lzs->reallength-off;
 456                 break;
 457         default:/* SEEK_SET */
 458                 newwanted       = off;
 459                 break;
 460         }
 461         if (newwanted>lzs->reallength)
 462                 return LZERROR_BADVALUE;
 463         if (newwanted<0)
 464                 return LZERROR_BADVALUE;
 465         lzs->realwanted = newwanted;
 466         return newwanted;
 467 }
 468
 469
 470 /***********************************************************************
 471  *           LZCopy16   (LZEXPAND.1)
 472  *
 473  */
 474 LONG WINAPI LZCopy16( HFILE16 src, HFILE16 dest )
 475 {
 476     /* already a LZ handle? */
 477     if (IS_LZ_HANDLE(src)) return LZCopy( src, DosFileHandleToWin32Handle(dest) );
 478
 479     /* no, try to open one */
 480     src = LZInit16(src);
 481     if ((INT16)src <= 0) return 0;
 482     if (IS_LZ_HANDLE(src))
 483     {
 484         LONG ret = LZCopy( src, DosFileHandleToWin32Handle(dest) );
 485         LZClose( src );
 486         return ret;
 487     }
 488     /* it was not a compressed file */
 489     return LZCopy( DosFileHandleToWin32Handle(src), DosFileHandleToWin32Handle(dest) );
 490 }
 491
 492
 493 /***********************************************************************
 494  *           LZCopy   (LZ32.0)
 495  *
 496  * Copies everything from src to dest
 497  * if src is a LZ compressed file, it will be uncompressed.
 498  * will return the number of bytes written to dest or errors.
 499  */
 500 LONG WINAPI LZCopy( HFILE src, HFILE dest )
 501 {
 502         int     usedlzinit=0,ret,wret;
 503         LONG    len;
 504         HFILE   oldsrc = src;
 505 #define BUFLEN  1000
 506         BYTE    buf[BUFLEN];
 507         /* we need that weird typedef, for i can't seem to get function pointer
 508          * casts right. (Or they probably just do not like WINAPI in general)
 509          */
 510         typedef UINT    WINAPI (*_readfun)(HFILE,LPVOID,UINT);
 511
 512         _readfun        xread;
 513
 514         TRACE("(%d,%d)\n",src,dest);
 515         if (!IS_LZ_HANDLE(src)) {
 516                 src = LZInit(src);
 517                 if ((INT)src <= 0) return 0;
 518                 if (src != oldsrc) usedlzinit=1;
 519         }
 520
 521         /* not compressed? just copy */
 522         if (!IS_LZ_HANDLE(src))
 523                 xread=_lread;
 524         else
 525                 xread=(_readfun)LZRead;
 526         len=0;
 527         while (1) {
 528                 ret=xread(src,buf,BUFLEN);
 529                 if (ret<=0) {
 530                         if (ret==0)
 531                                 break;
 532                         if (ret==-1)
 533                                 return LZERROR_READ;
 534                         return ret;
 535                 }
 536                 len    += ret;
 537                 wret    = _lwrite(dest,buf,ret);
 538                 if (wret!=ret)
 539                         return LZERROR_WRITE;
 540         }
 541         if (usedlzinit)
 542                 LZClose(src);
 543         return len;
 544 #undef BUFLEN
 545 }
 546
 547 /* reverses GetExpandedPathname */
 548 static LPSTR LZEXPAND_MangleName( LPCSTR fn )
 549 {
 550     char *p;
 551     char *mfn = (char *)HeapAlloc( GetProcessHeap(), 0,
 552                                    strlen(fn) + 3 ); /* "._" and \0 */
 553     if(mfn == NULL) return NULL;
 554     strcpy( mfn, fn );
 555     if (!(p = strrchr( mfn, '\\' ))) p = mfn;
 556     if ((p = strchr( p, '.' )))
 557     {
 558         p++;
 559         if (strlen(p) < 3) strcat( p, "_" );  /* append '_' */
 560         else p[strlen(p)-1] = '_';  /* replace last character */
 561     }
 562     else strcat( mfn, "._" );   /* append "._" */
 563     return mfn;
 564 }
 565
 566
 567 /***********************************************************************
 568  *           LZOpenFile16   (LZEXPAND.2)
 569  */
 570 HFILE16 WINAPI LZOpenFile16( LPCSTR fn, LPOFSTRUCT ofs, UINT16 mode )
 571 {
 572     HFILE hfret = LZOpenFileA( fn, ofs, mode );
 573     /* return errors and LZ handles unmodified */
 574     if ((INT)hfret <= 0) return hfret;
 575     if (IS_LZ_HANDLE(hfret)) return hfret;
 576     /* but allocate a dos handle for 'normal' files */
 577     return Win32HandleToDosFileHandle(hfret);
 578 }
 579
 580
 581 /***********************************************************************
 582  *           LZOpenFileA   (LZ32.1)
 583  *
 584  * Opens a file. If not compressed, open it as a normal file.
 585  */
 586 HFILE WINAPI LZOpenFileA( LPCSTR fn, LPOFSTRUCT ofs, UINT mode )
 587 {
 588         HFILE   fd,cfd;
 589
 590         TRACE("(%s,%p,%d)\n",fn,ofs,mode);
 591         /* 0x70 represents all OF_SHARE_* flags, ignore them for the check */
 592         fd=OpenFile(fn,ofs,mode);
 593         if (fd==HFILE_ERROR)
 594         {
 595             LPSTR mfn = LZEXPAND_MangleName(fn);
 596             fd = OpenFile(mfn,ofs,mode);
 597             HeapFree( GetProcessHeap(), 0, mfn );
 598         }
 599         if ((mode&~0x70)!=OF_READ)
 600                 return fd;
 601         if (fd==HFILE_ERROR)
 602                 return HFILE_ERROR;
 603         cfd=LZInit(fd);
 604         if ((INT)cfd <= 0) return fd;
 605         return cfd;
 606 }
 607
 608
 609 /***********************************************************************
 610  *           LZOpenFileW   (LZ32.10)
 611  */
 612 HFILE WINAPI LZOpenFileW( LPCWSTR fn, LPOFSTRUCT ofs, UINT mode )
 613 {
 614     HFILE ret;
 615     DWORD len = WideCharToMultiByte( CP_ACP, 0, fn, -1, NULL, 0, NULL, NULL );
 616     LPSTR xfn = HeapAlloc( GetProcessHeap(), 0, len );
 617     WideCharToMultiByte( CP_ACP, 0, fn, -1, xfn, len, NULL, NULL );
 618     ret = LZOpenFileA(xfn,ofs,mode);
 619     HeapFree( GetProcessHeap(), 0, xfn );
 620     return ret;
 621 }
 622
 623
 624 /***********************************************************************
 625  *           LZClose16   (LZEXPAND.6)
 626  */
 627 void WINAPI LZClose16( HFILE16 fd )
 628 {
 629     if (IS_LZ_HANDLE(fd)) LZClose( fd );
 630     else DisposeLZ32Handle( DosFileHandleToWin32Handle(fd) );
 631 }
 632
 633
 634 /***********************************************************************
 635  *           LZClose   (LZ32.5)
 636  */
 637 void WINAPI LZClose( HFILE fd )
 638 {
 639         struct lzstate *lzs;
 640
 641         TRACE("(%d)\n",fd);
 642         if (!(lzs = GET_LZ_STATE(fd))) _lclose(fd);
 643         else
 644         {
 645             if (lzs->get) HeapFree( GetProcessHeap(), 0, lzs->get );
 646             CloseHandle(lzs->realfd);
 647             lzstates[fd - 0x400] = NULL;
 648             HeapFree( GetProcessHeap(), 0, lzs );
 649         }
 650 }
 651
 652 /***********************************************************************
 653  *           CopyLZFile16   (LZEXPAND.8)
 654  */
 655 LONG WINAPI CopyLZFile16( HFILE16 src, HFILE16 dest )
 656 {
 657     TRACE("(%d,%d)\n",src,dest);
 658     return LZCopy16(src,dest);
 659 }
 660
 661
 662 /***********************************************************************
 663  *           CopyLZFile  (LZ32.7)
 664  *
 665  * Copy src to dest (including uncompressing src).
 666  * NOTE: Yes. This is exactly the same function as LZCopy.
 667  */
 668 LONG WINAPI CopyLZFile( HFILE src, HFILE dest )
 669 {
 670     TRACE("(%d,%d)\n",src,dest);
 671     return LZCopy(src,dest);
 672 }