stty -hup

[utzoo!decvax!ucbvax!unix-wizards]

>From decvax!duke!unc!smb at Berkeley Tue Oct  6 11:31:53 1981
In-real-life: Steven M. Bellovin
Location: University of North Carolina at Chapel Hill
Phone: (919) 966-3305

Why is there no way to turn off hup for a terminal?  My best guess is
that it's to prevent people from hanging around when the administration says
"go".  But in that case, I'd think there'd be a privileged ioctl() to turn
off hup.  Anyone have any ideas on this?