/***********************************************************************
* 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))
#ifdef __REACTOS__
xread=(_readfun)_hread; // ROSHACK
#else
xread=_lread;
#endif
else
/***********************************************************************
* 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;
DPRINT("(%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=_lread;
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 = _hwrite(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
}
/***********************************************************************
* LZInit (LZEXPAND.3)
*/
HFILE16 WINAPI LZInit16( HFILE16 hfSrc )
{
HFILE ret = LZInit( (HFILE)DosFileHandleToWin32Handle(hfSrc) );
if (IS_LZ_HANDLE(ret)) return ret;
if ((INT)ret <= 0) return ret;
return hfSrc;
}
/***********************************************************************
* LZCopy (LZEXPAND.1)
*
*/
LONG WINAPI LZCopy16( HFILE16 src, HFILE16 dest )
{
/* already a LZ handle? */
if (IS_LZ_HANDLE(src)) return LZCopy( src, (HFILE)DosFileHandleToWin32Handle(dest) );
/* no, try to open one */
src = LZInit16(src);
if ((INT16)src <= 0) return 0;
if (IS_LZ_HANDLE(src))
{
LONG ret = LZCopy( src, (HFILE)DosFileHandleToWin32Handle(dest) );
LZClose( src );
return ret;
}
/* it was not a compressed file */
return LZCopy( (HFILE)DosFileHandleToWin32Handle(src), (HFILE)DosFileHandleToWin32Handle(dest) );
}
/***********************************************************************
* LZOpenFile (LZEXPAND.2)
*/
HFILE16 WINAPI LZOpenFile16( LPSTR fn, LPOFSTRUCT ofs, UINT16 mode )
{
HFILE hfret = LZOpenFileA( fn, ofs, mode );
/* return errors and LZ handles unmodified */
if ((INT)hfret <= 0) return hfret;
if (IS_LZ_HANDLE(hfret)) return hfret;
/* but allocate a dos handle for 'normal' files */
return Win32HandleToDosFileHandle((HANDLE)hfret);
}
/***********************************************************************
* LZSeek (LZEXPAND.4)
*/
LONG WINAPI LZSeek16( HFILE16 fd, LONG off, INT16 type )
{
if (IS_LZ_HANDLE(fd)) return LZSeek( fd, off, type );
return _llseek( (HFILE)DosFileHandleToWin32Handle(fd), off, type );
}
/***********************************************************************
* LZRead (LZEXPAND.5)
*/
INT16 WINAPI LZRead16( HFILE16 fd, LPVOID buf, UINT16 toread )
{
if (IS_LZ_HANDLE(fd)) return LZRead( fd, buf, toread );
return _lread( (HFILE)DosFileHandleToWin32Handle(fd), buf, toread );
}
/***********************************************************************
* LZClose (LZEXPAND.6)
*/
void WINAPI LZClose16( HFILE16 fd )
{
if (IS_LZ_HANDLE(fd)) LZClose( fd );
else DisposeLZ32Handle( DosFileHandleToWin32Handle((HFILE)fd) );
}
