From Eddie Kohler <[email protected]>: In "ip_finddst()":

	quit as soon as we see IPOPT_EOL;

	*don't* quit as soon as we see IPOPT_NOP, just advance to the
	next option, if any;

	implement "quit" as "return the destination address from the IP
	header rather than as "return 0".

Also, return the IP header destination address if we see a
source-routing option with a too-short length.