rshd and control terminal

[Cuong T. Nguyen]

When I start a process via rsh (e.g., rsh <host> <process>),
I do not seem to be able to associate that (unattached) process
to a control terminal through an open(2), even though the open()
itself succeeds.  This is true at least on a pmax running
Ultrix 2.0.

I've tried changing process groups, closing stdio, ioctl(TIOCSPGRP),
and whatever else making remote sense.  What's rshd doing and
what am I missing?

Advice appreciated.  Thanks.

Cuong