dtiberio@csserv1.ic.sunysb.edu (David Tiberio) (12/02/90)
Hi...I need a null character to be sent over the modem without doing any damage :) other than the return key. Can I safely use a zero? Just so that the modem knows it is still connected...thanks a meg. David Tiberio SUNY Stony Brook 2-3605 AMIGA Toto Productions DDD Men
lphillips@lpami.wimsey.bc.ca (Larry Phillips) (12/03/90)
In <1990Dec2.092244.28513@sbcs.sunysb.edu>, dtiberio@csserv1.ic.sunysb.edu (David Tiberio) writes: > Hi...I need a null character to be sent over the modem without doing any >damage :) other than the return key. Can I safely use a zero? Just so that >the modem knows it is still connected...thanks a meg. What character you can safely send depends entirely on what the other end is looking for. If a <RETURN> is innocuous, it will do fine. If a zero is innocuous, it will do too. One possibility is to send a character followed by a backspace, if appropriate on the other end, and if it does what you expect. -larry -- The only things to survive a nuclear war will be cockroaches and IBM PCs. +-----------------------------------------------------------------------+ | // Larry Phillips | | \X/ lphillips@lpami.wimsey.bc.ca -or- uunet!van-bc!lpami!lphillips | | COMPUSERVE: 76703,4322 -or- 76703.4322@compuserve.com | +-----------------------------------------------------------------------+
king@motcid.UUCP (Steven King) (12/05/90)
In article <1990Dec2.092244.28513@sbcs.sunysb.edu> dtiberio@csserv1.ic.sunysb.edu (David Tiberio) writes: > Hi...I need a null character to be sent over the modem without doing any >damage :) other than the return key. Can I safely use a zero? Just so that >the modem knows it is still connected...thanks a meg. Ummm... WHY do you want to do this? So the modem knows it's connected to WHAT? And why would it think it's NOT connected? It's got a constant carrier to another modem, and it's got the DTR line back to your computer. What are you trying to accomplish here? -- ---------------------------------------------------+--------------------------- If you can spend a perfectly useless afternoon in | Steven King perfectly useless manner, you have learned how to | Motorola Cellular live. (Lin Yutang) | ...uunet!motcid!king
dtiberio@libws3.ic.sunysb.edu (David Tiberio) (12/06/90)
I want to use a modem null string so that the UNIX never thinks that I am IDLE. I hate being kicked off BBS's because I have to call through the UNIX. Someone did suggest using a character and then a delete, which is a very good idea, but then two problems arise. First, at some prompts as soon as a character is typed it reacts to it (sometimes called HOTKEYS). Second, since I plan to use it with any terminal program, it has to be compatible. JR Comm uses the backspace and DEL keys deifferently in different UNIX programs. Handshake is the exact opposite of JR Comm. For example, I use the DEL in JR Comm to type this message but would have to use backspace in Handshake. In my email, I have to use backspace with JR Comm and DEL with Handshake. If I used the DEL or backspace as a null, it would have to be configured to each terminal when I am using UNIX. Hint: I don't know if the author of JRComm will read this, but I do know that the author of Handshake is on this system...I would like to suggest you offer an option to keep the terminal from being kicked off due to IDLE on the UNIX. I think it would also be nice if Handshake made room for more function keys than the 6 in version 2.12. Eric, if you email me, I'd like to suggest another UNIX option that would be very easy to program, but it is too valuable for me to mention here. :) David Tiberio SUNY Stony Brook 2-3605 AMIGA Toto Productions DDD Men