nc (netcat) in 10.1 breaks after upgrade from 9.3

[Dimitry Andric]

On 29 Mar 2015, at 22:53, Miroslav Lachman <000.fbsd at quip.cz> wrote:
> 
> nc (netcat) in 10.1 behaves differently than it was before upgrade and breaks our scripts for monitoring services.
> 
> For example, following command works in FreeBSD 8.4 and 9.3
> 
> echo stats | nc localhost 11211
> 
> But it hangs in 10.1 at the END and never finishes.
> 
> It must be changed to:
> 
> echo stats | nc -N localhost 11211
> 
> Is it intentional?

Yes, this was introduced by upstream:
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/nc/netcat.c#rev1.111

"Don't shutdown nc(1)'s network socket when stdin closes. Matches *Hobbit*'s
original netcat and GNU netcat; revert to old behaviour with the new -N flag
if needed."

-Dimitry

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