예제 #1
0
파일: z.cpp 프로젝트: pedia/raidget
int GZDecompress(Stream& out, Stream& in, int size, Gate2<int, int> progress)
{
	byte buffer[10];
	if(!in.GetAll(buffer, 10) || buffer[0] != GZ_MAGIC1 || buffer[1] != GZ_MAGIC2) {
		out.SetError();
		return -1;
	}
	int flags = buffer[3];
	if(buffer[2] != Z_DEFLATED || (flags & RESERVED) != 0)
		return false;
	size -= 10;
	if(flags & EXTRA_FIELD) {
		int len = in.Get16le();
		in.SeekCur(len);
		size -= len;
	}
	if(flags & ORIG_NAME)
		size -= sSkipZ(in);
	if(flags & COMMENT)
		size -= sSkipZ(in);
	if(flags & HEAD_CRC) {
		in.Get16le();
		size -= 2;
	}
	if(in.IsEof() || size < 0) {
		out.SetError();
		return -1;
	}
	dword crc;
	int sz = ZDecompress(out, in, size, progress, true, &crc);
	return sz < 0 || in.Get32le() != (int)crc || in.Get32le() != sz ? -1 : sz;
}
예제 #2
0
파일: Bom.cpp 프로젝트: AbdelghaniDr/mirror
NAMESPACE_UPP

static void sLoadBom(Stream& in, String *t, WString *wt, byte def_charset) 
{
	if(in.IsOpen()) {
		String s;
		if(in.GetLeft() > 3) {
			word header = in.Get16le();
			if(header == 0xfffe || header == 0xfeff) {
				int n = (int)in.GetLeft() / 2;
				WStringBuffer ws(n);
				ws.SetLength(in.Get(~ws, 2 * n) / 2);
				if(header == 0xfffe)
					EndianSwap((word *)~ws, ws.GetCount());
				if(wt)
					*wt = ws;
				else
					*t = FromUnicode(ws);
				return;
			}
			int c = in.Get();
			if(c < 0)
				return;
			byte *h = (byte *)&header;
			if(h[0] == 0xef && h[1] == 0xbb && c == 0xbf) {
				if(wt)
					*wt = FromUtf8(LoadStream(in));
				else
					*t = ToCharset(CHARSET_DEFAULT, LoadStream(in), CHARSET_UTF8);
				return;
			}
			s.Cat(h, 2);
			s.Cat(c);
		}
		s.Cat(LoadStream(in));
		if(wt)
			*wt = ToUnicode(s, def_charset);
		else
			*t = ToCharset(CHARSET_DEFAULT, s, def_charset);
		return;
	}
	return;
}