autologout via screenblank?

[George A. Planansky]

We HAVE a SCREENBLANK program on our Sun 3/60's that does the right thing,
blanking the console screen after some time of no keyboard and (I presume)
no mouse activity.  We NEED an AUTOLOGOUT that does the same thing.  (We
have tcsh, but using windows confuses its autologout, or us, and it does
the wrong thing.)  

QUESTIONS:
1. Can whatever screenblank does be harnessed to work as an autologout?
2. In general, for any login (SunOS, 4.3 & 4.2 anyway), what can be
   watched, to monitor a user's interactive input activity, for
   autologout intentions?
3. Is there an autologout program that does the right thing, out there?

THANKS in advance for your help.

George Planansky	email to:  gplan at ra.umb.edu
Atmosphere Environment Research
Cambridge MA 02139
(617) 547-6207