From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <013a01c45545$8bf80c50$07fa7d50@SOMA>
From: "boyd, rounin" <boyd@insultant.net>
To: "Fans of the OS Plan 9 from Bell Labs" <9fans@cse.psu.edu>
References: <200406181311.i5IDBLB05307@zamenhof.cs.utwente.nl>
Subject: Re: [9fans] 9term echo-disabling fix (for ssh, vncviewer)
Date: Fri, 18 Jun 2004 17:04:24 +0200
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> - return (ttmode.c_lflag&(ICANON|ECHO));
> + return (ttmode.c_lflag&(ICANON) && ttmode.c_lflag&(ECHO));

that's weird.  1st returns either:

    ICANON
    ECHO
    ICANON|ECHO

2nd returns 0 [raw | raw and no echo] or 1 [not raw and echo].

this doesn't sound right and i don't want to have to read termio[s].

however, i just remembered i have this (which might help):

    http://www.insultant.net/tmp/mace/tty.c