private static void usage() {
		System.out.println("usage: client <-f torrent> [-o directory] [--force | --disable]");
		System.out.println("\ttorrent\t\t-\tTorrent-file the client uses to share.");
		System.out.println("\tdirectory\t-\tOutput directory where file is put. Default: /tmp.");
		System.out.println("\t--force\t\t-\tForce obfuscation at first attempt.");
		System.out.println("\t--disable\t-\tDisable magic Peer ID generation. Overrides force.");
	}