Hangup ignored--known problem?

[John Palmer]

In article <253 at hutch.UUCP} robert at rabbit1.uucp (Robert L. Oliver) writes:
}We have an SCO Xenix 386 system with a multi-port async serial card.  It
}has the annoying feature of ignoring hangups (loss of CD).  Thus, people
}dialing in can be connected to an already logged-in session.
}
...[rest deleted]
I'm having a similar problem using a DIGIBOARD PC/4. I'm running
SCO Xenix 2.3.2 on a 386-20MHz (AWARD Bios). I'm using a US Robotics
Courier HST modem which I have locked in at 9600 baud (the DCE/DTE
rate). Here is the gettydefs entry I am using:


m # B9600 HUPCL # B9600 CS8 SANE HUPCL TAB3 ECHOE IXANY #\rWelcome to The CAT-TALK Network. Type new if a new user.\r\n\r\n@ login: # m

The problem is that some times when someone hangs up abruptly, usually
when using something that uses curses/terminfo, the modem doesnt reset
and the SD and RD (Send Data/Read Data) lites on the modem stay lit.
At other times, they go out but the TR and RS lites go out and the
modem wont answer the phone. 

During the former case, the user still appears to be logged in. I'm not
using sh or csh for the login shell, but am using some program that I
wrote for a login shell. Any one have any suggestions??

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