From owner-freebsd-hackers Tue Feb 27 14:59: 4 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from earth.backplane.com (earth-nat-cw.backplane.com [208.161.114.67]) by hub.freebsd.org (Postfix) with ESMTP id D200937B71A for ; Tue, 27 Feb 2001 14:59:00 -0800 (PST) (envelope-from dillon@earth.backplane.com) Received: (from dillon@localhost) by earth.backplane.com (8.11.2/8.9.3) id f1RMwmF67311; Tue, 27 Feb 2001 14:58:48 -0800 (PST) (envelope-from dillon) Date: Tue, 27 Feb 2001 14:58:48 -0800 (PST) From: Matt Dillon Message-Id: <200102272258.f1RMwmF67311@earth.backplane.com> To: Maxime Henrion Cc: hackers@FreeBSD.ORG Subject: Re: talk(1) patch to allow 8bits characters References: <20010227205309.D345@nebula.cybercable.fr> Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG This is an extremely dangerous patch. A number of terminal protocols have a 'talkback' escape sequence that allow you to write data that the terminal then copies back as if someone typed it. I remember using this feature quite a lot while at Berkeley to, ah, break into people's accounts :-) isprintf() is in there to prevent extranious escape sequences from blowing up the other guy's window. -Matt To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message