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From: guy%gorodish@Sun.COM (Guy Harris)
Newsgroups: comp.bugs.sys5
Subject: Re: CLOCAL, or catch-22
Message-ID: <25150@sun.uucp>
Date: Fri, 7-Aug-87 18:00:04 EDT
Article-I.D.: sun.25150
Posted: Fri Aug  7 18:00:04 1987
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> The problem  essentially is: How  do you convince  getty to open  a port
> without  waiting for  carrier, if  you do  not have  the carrier  signal
> wired, and your terminal driver expects  to see it before proceeding?

You write a program that opens a specified set of ports with
O_NDELAY, issues the appropriate "ioctl", and holds them open.  Then
you make sure, by tweaking "/etc/gettydefs", that "getty" doesn't
futz with that mode.  It's a rather unattractive solution, and it may
break down if somebody explicitly turns that mode off, but it's
better than nothing.
	Guy Harris
	{ihnp4, decvax, seismo, decwrl, ...}!sun!guy
	guy@sun.com