down the connection when stdin closes, by default. This matches Hobbit's
original netcat and GNU netcat.
Old behavior can be restored with the new -N flag.
MFC after: 2 weeks
reimplementation of the famous tool that can do arbitrary TCP
and UDP connections and listens.
This gaves sysadm the same tool the crackers have, so that
they may learn what the network is about and protect it better.
For developers, this is an invaluable debugging tool, and a
good build block of scripts.
Discussed on: freebsd-hackers@