OpenBSD's tcpdrop(8)

Hello,

I've ported OpenBSD's tcpdrop(8) and a relevant kernel part.
>From the man page, http://tinyurl.com/4lvo9

     The tcpdrop command drops the TCP connection specified by the local
     address laddr, port lport and the foreign address faddr, port fport.

There are patches for HEAD and RELENG_4:

http://people.freebsd.org/~maxim/diff/tcpdrop.diff
http://people.freebsd.org/~maxim/diff/tcpdrop.diff-4

Two questions: do we want to have it in the base system?  Does the
diff look OK (I didn't test IPv6 part)?

-- 
Maxim Konovalov