Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/17/84; site hao.UUCP Path: utzoo!decvax!wanginst!ucadmus!harvard!seismo!hao!haynes From: haynes@hao.UUCP (Dan Haynes) Newsgroups: net.unix Subject: Re: Info sought on sending ascii NULL on output Message-ID: <1390@hao.UUCP> Date: Fri, 8-Mar-85 12:34:07 EST Article-I.D.: hao.1390 Posted: Fri Mar 8 12:34:07 1985 Date-Received: Sun, 10-Mar-85 02:25:02 EST References: <1381@hao.UUCP> Distribution: na Organization: High Altitude Obs./NCAR, Boulder CO Lines: 17 Xref: seismo net.unix:4065 > I was trying to download some graphics commands from a Vax 4.2 system > to an inkjet printer over a tty line. This particular printer requires > a special sequence to put it in graphics mode; one of the characters in > this sequence is an ascii null. All attempts thus far to get a null > char output have failed. There does not seem to be any problem outputting > any other control char (in RAW mode). If anyone can provide me with > a clue to a method to get a null on output, please send me mail. I have solved the "no nulls on output over a tty line" problem. It turned out that the particular terminal I was testing this on, a Wyse 50, treats nulls as a no-op even in MONITOR mode. Hooking a scope up to the receive line proved this. Dan Haynes haynes%ncar@csnet-relay.arpa ARPA haynes@ncar.csnet CSNET hao!haynes UUCP