DECODE_REF
copen (PVOID InStream, STREAM_TYPE SType, STREAM_MODE SMode)
{
MEM_HANDLE h;
DWORD StreamLength;
_StreamType = SType;
_Stream = InStream;
if (SMode == STREAM_WRITE) /* writing */
{
OutChar (0); /* skip future StreamLength */
OutChar (0);
OutChar (0);
OutChar (0);
StreamLength = 0;
}
else /* reading */
{
BYTE lobyte, hibyte;
UWORD loword, hiword;
lobyte = (BYTE)InChar ();
hibyte = (BYTE)InChar ();
loword = MAKE_WORD (lobyte, hibyte);
lobyte = (BYTE)InChar ();
hibyte = (BYTE)InChar ();
hiword = MAKE_WORD (lobyte, hibyte);
StreamLength = MAKE_DWORD (loword, hiword);
}
h = 0;
if (StreamLength == 0xFFFFFFFF
|| (h = AllocCodeDesc ()) == 0
|| (_lpCurCodeDesc = LockCodeDesc (h)) == 0)
{
_lpCurCodeDesc = 0;
FreeCodeDesc (h);
}
else
{
_lpCurCodeDesc->fh = h;
_lpCurCodeDesc->Stream = _Stream;
_lpCurCodeDesc->StreamType = _StreamType;
_lpCurCodeDesc->StreamMode = SMode;
_lpCurCodeDesc->StreamLength = StreamLength;
_lpCurCodeDesc->buf_index = N - F;
memset ((PBYTE)&_lpCurCodeDesc->text_buf[0], ' ', N - F);
StartHuff ();
}
return ((DECODE_REF)_lpCurCodeDesc);
}
DWORD
cclose (PLZHCODE_DESC lpCodeDesc)
{
_lpCurCodeDesc = lpCodeDesc;
if (_lpCurCodeDesc)
{
DWORD StreamIndex;
if (_lpCurCodeDesc->CleanupFunc)
(*_lpCurCodeDesc->CleanupFunc) ();
StreamIndex = lpCodeDesc->StreamIndex;
FreeCodeDesc (lpCodeDesc);
_lpCurCodeDesc = NULL;
return (StreamIndex);
}
return (0);
}
