cu/uucp suspend/restart getty - how?

[Roger Cornelius]

Can someone enlighten me as to how uucp and cu signal getty to suspend
and restart with SCO's HDB uucp?  I recall discussion here about
manually using SIGUSR1 and SIGUSR2 to accomplish this, but I'd like to
understand how cu/uucp do it (ie., from within a C program).

This is under SCO UNIX but uucp's behavior in this respect seems to be
the same as XENIX's.

--
Roger A. Cornelius          rac at sherpa.UUCP         uunet!sherpa!rac