Answer on sockets; Question on screen under SunOS 4.[01]

[Oliver Laumann]

In article <7122:Nov1408:21:1690 at kramden.acf.nyu.edu> brnstnd at kramden.acf.nyu.edu (Dan Bernstein) writes:
> In article <PRIMER.90Nov12224354 at osgood.harvard.edu> primer at math.harvard.edu (Jeremy Primer) writes:
>   [ suspended process under screen 2.0 dies under SunOS 4.1 ]
> > What has changed?
> 
> I've upgraded pty to SunOS 4.1. Now if we could only convince Oliver to
> support pty under screen along with (or in place of) his old pseudo-tty
> allocation code, this wouldn't be a problem. Oh, well.

Huh?  What does the problem that was described in the original article
have to do with the way pseudo-ttys are allocated in screen?  Am I
missing something?

The problem with screen under SunOS 4.1 obviously is that a process
running under control of screen is killed (i.e. receives a SIGKILL)
when you type ^Z in the respective window.  Since screen doesn't do
this, it looks like the kernel kills the process.

Instead of trying to convince me to change screen's pseudo-tty
allocation code I would appreciate if someone could tell me under what
conditions exactly the SunOS kernel kills a process, so that I can try
to put a work-around into screen (unfortunately we don't have the SunOS
sources, so I can't look that up myself).

Thanks,
--
Oliver Laumann     net at TUB.BITNET     net at tub.cs.tu-berlin.de     net at tub.UUCP