mirror of
https://github.com/reactos/reactos.git
synced 2024-08-30 23:28:58 +00:00
609 lines
16 KiB
C
609 lines
16 KiB
C
/*
|
|
* LZ Decompression functions
|
|
*
|
|
* Copyright 1996 Marcus Meissner
|
|
*
|
|
* 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
|
|
*
|
|
* NOTES
|
|
*
|
|
* The LZ (Lempel Ziv) decompression was used in win16 installation programs.
|
|
* It is a simple tabledriven decompression engine, the algorithm is not
|
|
* documented as far as I know. WINE does not contain a compressor for
|
|
* this format.
|
|
*
|
|
* The implementation is complete and there have been no reports of failures
|
|
* for some time.
|
|
*
|
|
* TODO:
|
|
*
|
|
* o Check whether the return values are correct
|
|
*
|
|
*/
|
|
|
|
#include <k32.h>
|
|
|
|
#define NDEBUG
|
|
#include <debug.h>
|
|
DEBUG_CHANNEL(kernel32file);
|
|
|
|
#define HFILE_ERROR ((HFILE)-1)
|
|
|
|
#include "lzexpand.h"
|
|
|
|
#define _lwrite(a, b, c) (long)(_hwrite(a, b, (long)c))
|
|
|
|
/* The readahead length of the decompressor. Reading single bytes
|
|
* using _lread() would be SLOW.
|
|
*/
|
|
#define GETLEN 2048
|
|
|
|
#define LZ_MAGIC_LEN 8
|
|
#define LZ_HEADER_LEN 14
|
|
|
|
/* Format of first 14 byte of LZ compressed file */
|
|
struct lzfileheader {
|
|
BYTE magic[LZ_MAGIC_LEN];
|
|
BYTE compressiontype;
|
|
CHAR lastchar;
|
|
DWORD reallength;
|
|
};
|
|
static const BYTE LZMagic[LZ_MAGIC_LEN]={'S','Z','D','D',0x88,0xf0,0x27,0x33};
|
|
|
|
#define LZ_TABLE_SIZE 0x1000
|
|
|
|
struct lzstate {
|
|
HFILE realfd; /* the real filedescriptor */
|
|
CHAR lastchar; /* the last char of the filename */
|
|
|
|
DWORD reallength; /* the decompressed length of the file */
|
|
DWORD realcurrent; /* the position the decompressor currently is */
|
|
DWORD realwanted; /* the position the user wants to read from */
|
|
|
|
BYTE table[LZ_TABLE_SIZE]; /* the rotating LZ table */
|
|
UINT curtabent; /* CURrent TABle ENTry */
|
|
|
|
BYTE stringlen; /* length and position of current string */
|
|
DWORD stringpos; /* from stringtable */
|
|
|
|
|
|
WORD bytetype; /* bitmask within blocks */
|
|
|
|
BYTE *get; /* GETLEN bytes */
|
|
DWORD getcur; /* current read */
|
|
DWORD getlen; /* length last got */
|
|
};
|
|
|
|
#define MAX_LZSTATES 16
|
|
static struct lzstate *lzstates[MAX_LZSTATES];
|
|
|
|
#define LZ_MIN_HANDLE 0x400
|
|
#define IS_LZ_HANDLE(h) (((h) >= LZ_MIN_HANDLE) && ((h) < LZ_MIN_HANDLE+MAX_LZSTATES))
|
|
#define GET_LZ_STATE(h) (IS_LZ_HANDLE(h) ? lzstates[(h)-LZ_MIN_HANDLE] : NULL)
|
|
|
|
/* reads one compressed byte, including buffering */
|
|
#define GET(lzs,b) _lzget(lzs,&b)
|
|
#define GET_FLUSH(lzs) lzs->getcur=lzs->getlen;
|
|
|
|
static int
|
|
_lzget(struct lzstate *lzs,BYTE *b) {
|
|
if (lzs->getcur<lzs->getlen) {
|
|
*b = lzs->get[lzs->getcur++];
|
|
return 1;
|
|
} else {
|
|
int ret = _lread(lzs->realfd,lzs->get,GETLEN);
|
|
if (ret==HFILE_ERROR)
|
|
return HFILE_ERROR;
|
|
if (ret==0)
|
|
return 0;
|
|
lzs->getlen = ret;
|
|
lzs->getcur = 1;
|
|
*b = *(lzs->get);
|
|
return 1;
|
|
}
|
|
}
|
|
/* internal function, reads lzheader
|
|
* returns BADINHANDLE for non filedescriptors
|
|
* return 0 for file not compressed using LZ
|
|
* return UNKNOWNALG for unknown algorithm
|
|
* returns lzfileheader in *head
|
|
*/
|
|
static INT read_header(HFILE fd,struct lzfileheader *head)
|
|
{
|
|
BYTE buf[LZ_HEADER_LEN];
|
|
|
|
if (_llseek(fd,0,SEEK_SET)==-1)
|
|
return LZERROR_BADINHANDLE;
|
|
|
|
/* We can't directly read the lzfileheader struct due to
|
|
* structure element alignment
|
|
*/
|
|
if (_lread(fd,buf,LZ_HEADER_LEN)<LZ_HEADER_LEN)
|
|
return 0;
|
|
memcpy(head->magic,buf,LZ_MAGIC_LEN);
|
|
memcpy(&(head->compressiontype),buf+LZ_MAGIC_LEN,1);
|
|
memcpy(&(head->lastchar),buf+LZ_MAGIC_LEN+1,1);
|
|
|
|
/* FIXME: consider endianess on non-intel architectures */
|
|
memcpy(&(head->reallength),buf+LZ_MAGIC_LEN+2,4);
|
|
|
|
if (memcmp(head->magic,LZMagic,LZ_MAGIC_LEN))
|
|
return 0;
|
|
if (head->compressiontype!='A')
|
|
return LZERROR_UNKNOWNALG;
|
|
return 1;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* LZStart (KERNEL32.@)
|
|
*/
|
|
INT WINAPI LZStart(void)
|
|
{
|
|
TRACE("(void)\n");
|
|
return 1;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* LZInit (KERNEL32.@)
|
|
*
|
|
* initializes internal decompression buffers, returns lzfiledescriptor.
|
|
* (return value the same as hfSrc, if hfSrc is not compressed)
|
|
* on failure, returns error code <0
|
|
* lzfiledescriptors range from 0x400 to 0x410 (only 16 open files per process)
|
|
*
|
|
* since _llseek uses the same types as libc.lseek, we just use the macros of
|
|
* libc
|
|
*/
|
|
HFILE WINAPI LZInit( HFILE hfSrc )
|
|
{
|
|
|
|
struct lzfileheader head;
|
|
struct lzstate *lzs;
|
|
int i, ret;
|
|
|
|
TRACE("(%d)\n",hfSrc);
|
|
ret=read_header(hfSrc,&head);
|
|
if (ret<=0) {
|
|
_llseek(hfSrc,0,SEEK_SET);
|
|
return ret?ret:hfSrc;
|
|
}
|
|
for (i = 0; i < MAX_LZSTATES; i++) if (!lzstates[i]) break;
|
|
if (i == MAX_LZSTATES) return LZERROR_GLOBALLOC;
|
|
lzstates[i] = lzs = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*lzs) );
|
|
if(lzs == NULL) return LZERROR_GLOBALLOC;
|
|
|
|
lzs->realfd = hfSrc;
|
|
lzs->lastchar = head.lastchar;
|
|
lzs->reallength = head.reallength;
|
|
|
|
lzs->get = HeapAlloc( GetProcessHeap(), 0, GETLEN );
|
|
lzs->getlen = 0;
|
|
lzs->getcur = 0;
|
|
|
|
if(lzs->get == NULL) {
|
|
HeapFree(GetProcessHeap(), 0, lzs);
|
|
lzstates[i] = NULL;
|
|
return LZERROR_GLOBALLOC;
|
|
}
|
|
|
|
/* Yes, preinitialize with spaces */
|
|
memset(lzs->table,' ',LZ_TABLE_SIZE);
|
|
/* Yes, start 16 byte from the END of the table */
|
|
lzs->curtabent = 0xff0;
|
|
return LZ_MIN_HANDLE + i;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* LZDone (KERNEL32.@)
|
|
*/
|
|
void WINAPI LZDone(void)
|
|
{
|
|
TRACE("(void)\n");
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetExpandedNameA (KERNEL32.@)
|
|
*
|
|
* gets the full filename of the compressed file 'in' by opening it
|
|
* and reading the header
|
|
*
|
|
* "file." is being translated to "file"
|
|
* "file.bl_" (with lastchar 'a') is being translated to "file.bla"
|
|
* "FILE.BL_" (with lastchar 'a') is being translated to "FILE.BLA"
|
|
*/
|
|
|
|
INT WINAPI GetExpandedNameA( LPSTR in, LPSTR out )
|
|
{
|
|
struct lzfileheader head;
|
|
HFILE fd;
|
|
OFSTRUCT ofs;
|
|
INT fnislowercased,ret,len;
|
|
LPSTR s,t;
|
|
|
|
TRACE("(%s)\n",in);
|
|
fd=OpenFile(in,&ofs,OF_READ);
|
|
if (fd==HFILE_ERROR)
|
|
return (INT)(INT16)LZERROR_BADINHANDLE;
|
|
strcpy(out,in);
|
|
ret=read_header(fd,&head);
|
|
if (ret<=0) {
|
|
/* not a LZ compressed file, so the expanded name is the same
|
|
* as the input name */
|
|
_lclose(fd);
|
|
return 1;
|
|
}
|
|
|
|
|
|
/* look for directory prefix and skip it. */
|
|
s=out;
|
|
while (NULL!=(t=strpbrk(s,"/\\:")))
|
|
s=t+1;
|
|
|
|
/* now mangle the basename */
|
|
if (!*s) {
|
|
/* FIXME: hmm. shouldn't happen? */
|
|
WARN("Specified a directory or what? (%s)\n",in);
|
|
_lclose(fd);
|
|
return 1;
|
|
}
|
|
/* see if we should use lowercase or uppercase on the last char */
|
|
fnislowercased=1;
|
|
t=s+strlen(s)-1;
|
|
while (t>=out) {
|
|
if (!isalpha(*t)) {
|
|
t--;
|
|
continue;
|
|
}
|
|
fnislowercased=islower(*t);
|
|
break;
|
|
}
|
|
if (isalpha(head.lastchar)) {
|
|
if (fnislowercased)
|
|
head.lastchar=tolower(head.lastchar);
|
|
else
|
|
head.lastchar=toupper(head.lastchar);
|
|
}
|
|
|
|
/* now look where to replace the last character */
|
|
if (NULL!=(t=strchr(s,'.'))) {
|
|
if (t[1]=='\0') {
|
|
t[0]='\0';
|
|
} else {
|
|
len=strlen(t)-1;
|
|
if (t[len]=='_')
|
|
t[len]=head.lastchar;
|
|
}
|
|
} /* else no modification necessary */
|
|
_lclose(fd);
|
|
return 1;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetExpandedNameW (KERNEL32.@)
|
|
*/
|
|
INT WINAPI GetExpandedNameW( LPWSTR in, LPWSTR out )
|
|
{
|
|
INT ret;
|
|
DWORD len = WideCharToMultiByte( CP_ACP, 0, in, -1, NULL, 0, NULL, NULL );
|
|
char *xin = HeapAlloc( GetProcessHeap(), 0, len );
|
|
char *xout = HeapAlloc( GetProcessHeap(), 0, len+3 );
|
|
WideCharToMultiByte( CP_ACP, 0, in, -1, xin, len, NULL, NULL );
|
|
if ((ret = GetExpandedNameA( xin, xout )) > 0)
|
|
MultiByteToWideChar( CP_ACP, 0, xout, -1, out, strlenW(in)+4 );
|
|
HeapFree( GetProcessHeap(), 0, xin );
|
|
HeapFree( GetProcessHeap(), 0, xout );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* LZRead (KERNEL32.@)
|
|
*/
|
|
INT WINAPI LZRead( HFILE fd, LPSTR vbuf, INT toread )
|
|
{
|
|
int howmuch;
|
|
BYTE b,*buf;
|
|
struct lzstate *lzs;
|
|
|
|
buf=(LPBYTE)vbuf;
|
|
TRACE("(%d,%p,%d)\n",fd,buf,toread);
|
|
howmuch=toread;
|
|
if (!(lzs = GET_LZ_STATE(fd))) return _lread(fd,buf,toread);
|
|
|
|
/* The decompressor itself is in a define, cause we need it twice
|
|
* in this function. (the decompressed byte will be in b)
|
|
*/
|
|
#define DECOMPRESS_ONE_BYTE \
|
|
if (lzs->stringlen) { \
|
|
b = lzs->table[lzs->stringpos]; \
|
|
lzs->stringpos = (lzs->stringpos+1)&0xFFF; \
|
|
lzs->stringlen--; \
|
|
} else { \
|
|
if (!(lzs->bytetype&0x100)) { \
|
|
if (1!=GET(lzs,b)) \
|
|
return toread-howmuch; \
|
|
lzs->bytetype = b|0xFF00; \
|
|
} \
|
|
if (lzs->bytetype & 1) { \
|
|
if (1!=GET(lzs,b)) \
|
|
return toread-howmuch; \
|
|
} else { \
|
|
BYTE b1,b2; \
|
|
\
|
|
if (1!=GET(lzs,b1)) \
|
|
return toread-howmuch; \
|
|
if (1!=GET(lzs,b2)) \
|
|
return toread-howmuch; \
|
|
/* Format: \
|
|
* b1 b2 \
|
|
* AB CD \
|
|
* where CAB is the stringoffset in the table\
|
|
* and D+3 is the len of the string \
|
|
*/ \
|
|
lzs->stringpos = b1|((b2&0xf0)<<4); \
|
|
lzs->stringlen = (b2&0xf)+2; \
|
|
/* 3, but we use a byte already below ... */\
|
|
b = lzs->table[lzs->stringpos];\
|
|
lzs->stringpos = (lzs->stringpos+1)&0xFFF;\
|
|
} \
|
|
lzs->bytetype>>=1; \
|
|
} \
|
|
/* store b in table */ \
|
|
lzs->table[lzs->curtabent++]= b; \
|
|
lzs->curtabent &= 0xFFF; \
|
|
lzs->realcurrent++;
|
|
|
|
/* if someone has seeked, we have to bring the decompressor
|
|
* to that position
|
|
*/
|
|
if (lzs->realcurrent!=lzs->realwanted) {
|
|
/* if the wanted position is before the current position
|
|
* I see no easy way to unroll ... We have to restart at
|
|
* the beginning. *sigh*
|
|
*/
|
|
if (lzs->realcurrent>lzs->realwanted) {
|
|
/* flush decompressor state */
|
|
_llseek(lzs->realfd,LZ_HEADER_LEN,SEEK_SET);
|
|
GET_FLUSH(lzs);
|
|
lzs->realcurrent= 0;
|
|
lzs->bytetype = 0;
|
|
lzs->stringlen = 0;
|
|
memset(lzs->table,' ',LZ_TABLE_SIZE);
|
|
lzs->curtabent = 0xFF0;
|
|
}
|
|
while (lzs->realcurrent<lzs->realwanted) {
|
|
DECOMPRESS_ONE_BYTE;
|
|
}
|
|
}
|
|
|
|
while (howmuch) {
|
|
DECOMPRESS_ONE_BYTE;
|
|
lzs->realwanted++;
|
|
*buf++ = b;
|
|
howmuch--;
|
|
}
|
|
return toread;
|
|
#undef DECOMPRESS_ONE_BYTE
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* LZSeek (KERNEL32.@)
|
|
*/
|
|
LONG WINAPI LZSeek( HFILE fd, LONG off, INT type )
|
|
{
|
|
struct lzstate *lzs;
|
|
LONG newwanted;
|
|
|
|
TRACE("(%d,%d,%d)\n",fd,off,type);
|
|
/* not compressed? just use normal _llseek() */
|
|
if (!(lzs = GET_LZ_STATE(fd))) return _llseek(fd,off,type);
|
|
newwanted = lzs->realwanted;
|
|
switch (type) {
|
|
case 1: /* SEEK_CUR */
|
|
newwanted += off;
|
|
break;
|
|
case 2: /* SEEK_END */
|
|
newwanted = lzs->reallength-off;
|
|
break;
|
|
default:/* SEEK_SET */
|
|
newwanted = off;
|
|
break;
|
|
}
|
|
if (newwanted>lzs->reallength)
|
|
return LZERROR_BADVALUE;
|
|
if (newwanted<0)
|
|
return LZERROR_BADVALUE;
|
|
lzs->realwanted = newwanted;
|
|
return newwanted;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* LZCopy (KERNEL32.@)
|
|
*
|
|
* Copies everything from src to dest
|
|
* if src is a LZ compressed file, it will be uncompressed.
|
|
* will return the number of bytes written to dest or errors.
|
|
*/
|
|
LONG WINAPI LZCopy( HFILE src, HFILE dest )
|
|
{
|
|
int usedlzinit = 0, ret, wret;
|
|
LONG len;
|
|
HFILE oldsrc = src, srcfd;
|
|
FILETIME filetime;
|
|
struct lzstate *lzs;
|
|
#define BUFLEN 1000
|
|
CHAR buf[BUFLEN];
|
|
/* we need that weird typedef, for i can't seem to get function pointer
|
|
* casts right. (Or they probably just do not like WINAPI in general)
|
|
*/
|
|
typedef UINT (WINAPI *_readfun)(HFILE,LPVOID,UINT);
|
|
|
|
_readfun xread;
|
|
|
|
TRACE("(%d,%d)\n",src,dest);
|
|
if (!IS_LZ_HANDLE(src)) {
|
|
src = LZInit(src);
|
|
if ((INT)src <= 0) return 0;
|
|
if (src != oldsrc) usedlzinit=1;
|
|
}
|
|
|
|
/* not compressed? just copy */
|
|
if (!IS_LZ_HANDLE(src))
|
|
xread=(_readfun)_hread; // ROSHACK
|
|
else
|
|
xread=(_readfun)LZRead;
|
|
len=0;
|
|
while (1) {
|
|
ret=xread(src,buf,BUFLEN);
|
|
if (ret<=0) {
|
|
if (ret==0)
|
|
break;
|
|
if (ret==-1)
|
|
return LZERROR_READ;
|
|
return ret;
|
|
}
|
|
len += ret;
|
|
wret = _lwrite(dest,buf,ret);
|
|
if (wret!=ret)
|
|
return LZERROR_WRITE;
|
|
}
|
|
|
|
/* Maintain the timestamp of source file to destination file */
|
|
srcfd = (!(lzs = GET_LZ_STATE(src))) ? src : lzs->realfd;
|
|
GetFileTime( LongToHandle(srcfd), NULL, NULL, &filetime );
|
|
SetFileTime( LongToHandle(dest), NULL, NULL, &filetime );
|
|
|
|
/* close handle */
|
|
if (usedlzinit)
|
|
LZClose(src);
|
|
return len;
|
|
#undef BUFLEN
|
|
}
|
|
|
|
/* reverses GetExpandedPathname */
|
|
static LPSTR LZEXPAND_MangleName( LPCSTR fn )
|
|
{
|
|
char *p;
|
|
char *mfn = HeapAlloc( GetProcessHeap(), 0, strlen(fn) + 3 ); /* "._" and \0 */
|
|
if(mfn == NULL) return NULL;
|
|
strcpy( mfn, fn );
|
|
if (!(p = strrchr( mfn, '\\' ))) p = mfn;
|
|
if ((p = strchr( p, '.' )))
|
|
{
|
|
p++;
|
|
if (strlen(p) < 3) strcat( p, "_" ); /* append '_' */
|
|
else p[strlen(p)-1] = '_'; /* replace last character */
|
|
}
|
|
else strcat( mfn, "._" ); /* append "._" */
|
|
return mfn;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* LZOpenFileA (KERNEL32.@)
|
|
*
|
|
* Opens a file. If not compressed, open it as a normal file.
|
|
*/
|
|
HFILE WINAPI LZOpenFileA( LPSTR fn, LPOFSTRUCT ofs, WORD mode )
|
|
{
|
|
HFILE fd,cfd;
|
|
|
|
TRACE("(%s,%p,%d)\n",fn,ofs,mode);
|
|
/* 0x70 represents all OF_SHARE_* flags, ignore them for the check */
|
|
fd=OpenFile(fn,ofs,mode);
|
|
if (fd==HFILE_ERROR)
|
|
{
|
|
LPSTR mfn = LZEXPAND_MangleName(fn);
|
|
fd = OpenFile(mfn,ofs,mode);
|
|
HeapFree( GetProcessHeap(), 0, mfn );
|
|
}
|
|
if ((mode&~0x70)!=OF_READ)
|
|
return fd;
|
|
if (fd==HFILE_ERROR)
|
|
return HFILE_ERROR;
|
|
cfd=LZInit(fd);
|
|
if ((INT)cfd <= 0) return fd;
|
|
return cfd;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* LZOpenFileW (KERNEL32.@)
|
|
*/
|
|
HFILE WINAPI LZOpenFileW( LPWSTR fn, LPOFSTRUCT ofs, WORD mode )
|
|
{
|
|
HFILE ret;
|
|
DWORD len = WideCharToMultiByte( CP_ACP, 0, fn, -1, NULL, 0, NULL, NULL );
|
|
LPSTR xfn = HeapAlloc( GetProcessHeap(), 0, len );
|
|
WideCharToMultiByte( CP_ACP, 0, fn, -1, xfn, len, NULL, NULL );
|
|
ret = LZOpenFileA(xfn,ofs,mode);
|
|
HeapFree( GetProcessHeap(), 0, xfn );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* LZClose (KERNEL32.@)
|
|
*/
|
|
void WINAPI LZClose( HFILE fd )
|
|
{
|
|
struct lzstate *lzs;
|
|
|
|
TRACE("(%d)\n",fd);
|
|
if (!(lzs = GET_LZ_STATE(fd))) _lclose(fd);
|
|
else
|
|
{
|
|
HeapFree( GetProcessHeap(), 0, lzs->get );
|
|
CloseHandle( LongToHandle(lzs->realfd) );
|
|
lzstates[fd - LZ_MIN_HANDLE] = NULL;
|
|
HeapFree( GetProcessHeap(), 0, lzs );
|
|
}
|
|
}
|
|
|
|
/*
|
|
* @implemented
|
|
*/
|
|
VOID
|
|
WINAPI
|
|
LZCloseFile(IN HFILE FileHandle)
|
|
{
|
|
/* One function uses _lclose, the other CloseHandle -- same thing */
|
|
LZClose(FileHandle);
|
|
}
|
|
|
|
/*
|
|
* @unimplemented
|
|
*/
|
|
ULONG
|
|
WINAPI
|
|
LZCreateFileW(IN LPCWSTR FileName,
|
|
IN DWORD dwDesiredAccess,
|
|
IN DWORD dwShareMode,
|
|
IN DWORD dwCreationDisposition,
|
|
IN LPWSTR lpString1)
|
|
{
|
|
WARN(" LZCreateFileW Not implemented!\n");
|
|
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
|
|
return ERROR_CALL_NOT_IMPLEMENTED;
|
|
}
|
|
|