keystrokes via telnet

[Raz316]

Is it possible to send, lets say a right cursor press, via a telnet script?

(sleep 1;
echo "open 192.168.0.1";
sleep 1;
echo "speshul";
sleep 1;
echo "hacker";
sleep 1;
echo "/usr/pro50/pro SYS";
sleep 1;
***
) | telnet

*** at this point I need to send a right cursor keystroke, any idea how I would go about doing this?

Cheers

[ikonia]

telnets a tough one to send key sequences to.

You need to look at the ASCII charecter for -> (right cusor move)

The best way I did this a long time ago was to echo what I wanted to the tty I was using to connect to the remote machine

eg: echo "hello" > /dev/ttya would send "hello" to ttya and thus to telnet.

echoing asci characters may be a little tougher as you'll have to echo the escape sequence, then the ascii number then drop out of special char mode.

Have a play with sending input to the tty and see what results you get.

[Raz316]

Oo cheers, i'll look into that I did move onto trying to work with escape characters but couldnt see a way of specifying '^]]C' (I think) and then sending it.

Ill try when I get into work tomorrow, thanks

[ikonia]

if you want to send special charecters direct, and easy way is to set -o vi

then use ctrl+v (sets it into special char mode) then do ctrl+$yourkey

[Raz316]

thats certainly doing something, though I have to use /dev/pts/0 instead. Im struggling to echo the keystroke across though on both the client and the server ctrl-v and ctrl-keystroke gives ^[0C but when I echo it to > /dev/pts/0 it places a 'C' on the current line, then goes down to the next at the same cursor position

[ikonia]

ok - thats interesting.

No problem that your using pts, pts is just psudo terminals (bad spelling).

If you ctrl+v + ctrl $char and you get say ^U what your saying is it acutally sends ^C even though you echo ^U ?

I remember a problem with ctrl+v ctrl+M == ^J instead of ^M

When I looked into it it was a termcap issue, but I'm guessing your running linux and linux has pretty basic termcaps. for arguments sake and assuming your running linux, try setting TERM=linux (export it) and see if that makes a difference.

Other suggestions are to look at searching for echoing ascii char mappings.

Its been a while scince I looked at feeding stuff into terminals remotley. I'll try take a look / have a play with this tonight.

[Raz316]

I'll give it a go cheers

and "echoing ascii char mappings" why the hell couldn't I word it like that!

[killgORE]

Erm... How about this.

Why don't you get your client to send a character or a word to represent the keystroke you are after. Then get the server to look for that. This is how I got round this type of thing. When developing apps that work like telnet YOU define the commands you want to implement.

OR have I just misunderstood you ? Are you trying to use standard telnet daemons/clients... If thats the case. My bad. Sorry

[EDITS]
Ah.. you are script accessing it, or 'terming' in. I will shut my mouth and clean out my eyes

[Raz316]

Yeah its a really shoddy way of accessing it, I know, but the program on the server has no command line interface so you have to manually open the program and navigate through using the cursor keys :/