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From: rommel@runx.UUCP
Newsgroups: comp.sys.nsc.32k
Subject: Re: getty ignoring tty2
Message-ID: <757@runx.ips.oz>
Date: Tue, 7-Apr-87 02:25:19 EST
Article-I.D.: runx.757
Posted: Tue Apr  7 02:25:19 1987
Date-Received: Sat, 11-Apr-87 06:17:25 EST
References: <750@runx.ips.oz>
Organization: RUNX Un*x Timeshare.  Sydney, Australia.
Lines: 17


After more carefull examination of the 2681 device driver (/usr/src/buts/
ns32000/io/sig2681.c) I found the bug that caused the problem with tty2
on the ICM2681. In the procedure siginit() a line appears:
				if ( dev > (sig_cnt-2) ) {
					sig_telco[dev] = OFF;
					sig_ds[PORT(dev)] = 0;
				}
"sig_cnt" appears in the config file, and is set to 4 (4 ports), so that
the if statement is only true for tty3 (ie console). Thus tty2 is assumed
to have full modem control when it too is a "telco" connection. 
Changing the ">" to ">=" fixes the bug.
 
	It makes me wonder how many other bugs were patched in the sysV.2
binary and not corrected in the source and .o files supplied by nsc.

Michael Katzmann  (VK2BEA / G4NYV)
ATN Channel 7 Sydney