public static int getsockopt (int s, SocketLevel level, int optname) { IntByReference ref; if (optname == SocketOption.SO_RCVTIMEO.intValue() || optname == SocketOption.SO_SNDTIMEO.intValue()) { DefaultNativeTimeval t = new DefaultNativeTimeval(Runtime.getSystemRuntime()); ref = new IntByReference(DefaultNativeTimeval.size(t)); Native.libsocket().getsockopt(s, level.intValue(), optname, t, ref); return (t.tv_sec.intValue() * 1000 + t.tv_usec.intValue() / 1000); } else { ByteBuffer buf = ByteBuffer.allocate(4); buf.order(ByteOrder.nativeOrder()); ref = new IntByReference(4); Native.libsocket().getsockopt(s, level.intValue(), optname, buf, ref); return buf.getInt(); } }