Module Name:	src
Committed By:	mycroft
Date:		Tue Jan 19 23:03:22 UTC 1999

Modified Files:
	src/sys/netinet: igmp.c ip_gre.c ip_icmp.c ip_input.c tcp_input.c
	    udp_usrreq.c
Log Message:
Don't screw with ip_len; just subtract from it where we actually use the
value.