Subject: Re: gettytab
To: None <D.Leonard@fnarg.net.au>
From: Mark P. Gooderum <firstname.lastname@example.org>
Date: 11/18/1994 11:37:23
According to Dave Leonard:
> I'm using a dumb terminal at the moment on this mac IIsi. My cables don't
> have a CD line, and the terminal doesn't generate one. Unless CLOCAL is
> enabled, its unusable.
> I have looked in the manuals, and even grepped the source to getty, but
> can find no way to specify clocal in gettytab, and therefore, when I boot
> a kernel that is sensitive to DCD (as older ones weren't) I can't login.
That's because the flag is named "local" and it goes at the end of the
tty line in /etc/ttys. The flag is actually set by /sbin/ttyflags. If
you change it, you need to rerun ttyflags. From the ttys(5) man page:
As flag values, the strings ``on'' and ``off'' specify that init should
(should not) execute the command given in the second field, while ``se-
cure'' (if ``on'' is also specified) allows users with a uid of 0 to lo-
gin on this line. The flags ``local'', ``rtscts'', ``mdmbuf'', and
``softcar'' modify the default behaviour of the terminal line, and their
actions are driver dependent. The ``local'' flag causes the driver to
treat the line as if it locally connected. The ``rtscts'' flag instructs
the driver to use RTS/CTS hardware flow control, if possible. The ``mdm-
buf'' flag instructs the driver to use DTR/DCD flow control, if possible.
The ``softcar'' flag causes the driver to ignore hardware carrier on the
line. These flag fields should not be quoted.
> Help! Why can't I specify clocal in a gettytab field. Even recompiling
> to change TTYDEFS to include CLOCAL doesn't help because getty zaps that.
As I said, you're looking in the wrong place...also, there are some
differences between local and softcar, the details I'm not sure of.
Mark P. Gooderum USSnail: Good Creations
Senior Consultant - Operating Systems Group 3029 Blackstone Ave. So.
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EMail: mark@Good.com Voice: (612) 922-3953
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