[TUHS] 4.3BSD help: getty ignoring modem status

Warren Toomey wkt at tuhs.org
Sun Mar 19 20:08:07 AEST 2017

On Sun, Mar 19, 2017 at 06:06:40PM +1000, Warren Toomey wrote:
> Some more data points. Vanilla 32V and 3BSD do HUP the shell when the DCD
> drops on a SimH telnet disconnect. Vanilla 4.2BSD and 4.3BSD don't!

Found it. In /sys/conf/GENERIC, the dz lines have flags turned on to
ignore DCD:

device    dz0     at uba? csr 0160100 flags 0xff  vector dzrint dzxint

I just turned off the flags and now a Telnet disconnect causes the
shell to be HUP'd and killed. Phew!
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 819 bytes
Desc: not available
URL: <http://minnie.tuhs.org/pipermail/tuhs/attachments/20170319/e5ccaace/attachment.sig>

More information about the TUHS mailing list