From owner-freebsd-current Tue Aug 8 07:41:55 1995 Return-Path: current-owner Received: (from majordom@localhost) by freefall.cdrom.com (8.6.11/8.6.6) id HAA00763 for current-outgoing; Tue, 8 Aug 1995 07:41:55 -0700 Received: from halloran-eldar.lcs.mit.edu (halloran-eldar.lcs.mit.edu [18.26.0.159]) by freefall.cdrom.com (8.6.11/8.6.6) with SMTP id HAA00756 for ; Tue, 8 Aug 1995 07:41:53 -0700 Received: by halloran-eldar.lcs.mit.edu; (5.65/1.1.3.6) id AA02661; Tue, 8 Aug 1995 10:40:57 -0400 Date: Tue, 8 Aug 1995 10:40:57 -0400 From: Garrett Wollman Message-Id: <9508081440.AA02661@halloran-eldar.lcs.mit.edu> To: Bertus Pretorius Cc: current@freebsd.org Subject: Re: rlogin bug -> OOB bug? In-Reply-To: <199508081227.OAA01386@dolphin.mikom.csir.co.za> References: <199508081227.OAA01386@dolphin.mikom.csir.co.za> Sender: current-owner@freebsd.org Precedence: bulk < said: Please press return after 72 characters... > Telnet and ftp (rlogin not checked) send more than one OOB byte - >ftp 2 and telnet often a long string. This is not true, for a very simple reason: TCP doesn't have out-of-band delivery (although the BSD TCP stack tries to fake it, usually unsuccessfully as seen here). What TCP has is an urgent data pointer, which indicates ``at this point in the segment, there is some urgent data'' with no specification of the length thereof. -GAWollman -- Garrett A. Wollman | Shashish is simple, it's discreet, it's brief. ... wollman@lcs.mit.edu | Shashish is the bonding of hearts in spite of distance. Opinions not those of| It is a bond more powerful than absence. We like people MIT, LCS, ANA, or NSA| who like Shashish. - Claude McKenzie + Florent Vollant