Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10 5/3/83; site kcl-cs.UUCP Path: utzoo!linus!philabs!cmcl2!seismo!mcvax!ukc!kcl-cs!lee From: lee@kcl-cs.UUCP (Lee McLoughlin) Newsgroups: net.unix-wizards Subject: Re: uucp through flow-controlled (XON/XOFF) network Message-ID: <430@kcl-cs.UUCP> Date: Sun, 18-Nov-84 08:57:42 EST Article-I.D.: kcl-cs.430 Posted: Sun Nov 18 08:57:42 1984 Date-Received: Thu, 22-Nov-84 06:31:27 EST References: <5805@brl-tgr.ARPA> Reply-To: lee@kcl-cs.UUCP (Lee McLoughlin) Organization: King's College Dept. of Computing, Westfield College, London, England Lines: 31 In article <5805@brl-tgr.ARPA> Tom Dunigan writes: >Question: Should uucp be able to function over a flow-controlled > network that uses XON/XOFF as flow control. It appears > that the uucp conversation hangs for large messages > over our DCA stat mux network. If there is a way > to make uucp work, I would like to know it. If the > packet-size negotiation could be inhibited from increasing > the packet size that might help. KERMIT seems to > work just fine over the same network. >thanks. Uucp normally won't be able to function over a network that doesn't provide a full 8-bit transfer mode. Occasionally its going to generate characters like ^S/^Q in its headers and if the network is going to gobble them up its not going to work. If you have source then you might add in a new protocol. Uucp allows for more that the default 'g'-protocol so you could add one that avoids this problem. In the UK many sites use a modified uucp that gives you the choice between using a variant on the standard 'g'-protocol and the 'f'-protocol. The former converts all messages into text on sending and back to binary again on arriving so that Unix and networks can do what they like with control chars for flow control. If you have very clean lines then you might care to use the 'f'-protocol. It does something similar, except it presumes that you never corrupt characters and that TANDEM mode is enough to prevent losing stuff. -- UKUUCP SUPPORT Lee McLoughlin !ukc!lmcl kcl-cs!lee "What you once thought was only a nightmare is now a reality!"