SSH connection hanging on logout

[Markus Friedl]

On Wed, May 16, 2001 at 08:32:14PM -0000, John Bowman wrote:
> > i think that shutdown should only be allowed if c->istate ==
> > CHAN_INPUT_CLOSED;
> 
> No, this will cause openssh to hang under interactive use.

but the transition from CHAN_INPUT_CLOSED to state!=CHAN_INPUT_CLOSED
should be caused by shutdown.  see nchan2.ms