>It's something like this:
struct binding {
	u_short		local_ypbind_udp_port_for_v2;
	u_short		unknown1;
	u_short		unknown2;
	struct in_addr	ypserv_ip_addr_for_v2;
	u_short		ypserv_udp_port_for_v2;
	/* on sparc this pads to a long word */
};

unknown0 always seems to be 0. No idea what this might be.

unknown1 always seems to be 1. I think this might be the "minimum version of
YP supported". I only support version 2 of YP.

Also note that the structure may not pad between unknown1 & the in_addr.

At some stage we might have to change this. Ouch -- all old binaries are
going to suffer for this! Anyways, probably better sooner than later.

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