Problems with the tty's in openssh + AIX

[Darren Tucker]

Tobias Ulbricht wrote:
> $ oslevel
> 5.1.0.0

Sorry that should be "oslevel -r".

I can reproduce the problem on AIX 5.1 ML2 with openssh-3.5p1. I'm
downloading ML3 to try.

It looks like the problem identified by Sandor Sklar in bug #124: a zero
length write to the tty results in a zero-length read from it.

I believe this is a bug in AIX.  The attached patch works around it for
me but I don't think this is a correct fix.