[_CDCSL_93-16_]<1>Cedar>release>TelnetViewer>TelnetViewerDoc.tioga

TelnetViewerDoc.tioga

Wes Irish, October 4, 1991 3:28 pm PDT

Michael Plass, May 20, 1992 5:09 pm PDT

Telnet Viewer

CEDAR 10.1

Telnet Viewer

TCP/IP "Chat"

Wesley Irish

Abstract: A client implementation of Telnet.

Created by: Wesley Irish <WIrish.pa>

Maintained by: Wesley Irish <WIrish.pa>

Keywords: Chat, communications, IP, network tools, protocols TCP/IP, Telnet

XEROX Xerox Corporation
Palo Alto Research Center
3333 Coyote Hill Road
Palo Alto, California 94304

How to use Telnet

Command line:

Telnet [-p port] [-l] [-d] host

Telent to the specified host. The host my be specified as an address or a name that will be looked up via the domain name service.

NB: Access to machines outside of Xerox is tightly controlled for security reasons. Access control is implemented in such a way that you will not be explicitly told that you can not connect for access control reasons -- the other end will simply "not respond".

Switches:

-p port number, defaults to the standard remote terminal port 23 (27B).

-l auto login

-d do not auto login

"TypeScript" operation:

When the TypeScript is "free" (no connection) it operates in local echo mode. If you type the LF key it will attempt to open a connection to the machine named to the left of the cursor on the current line. Shift-LF will do the same thing but additionally attempt to login.

Menu Buttons:

Find

Just as you would expect.

Split

Just as you would expect.

Another

Create another Telnet viewer.

Disconnect

Disconnect from the remote machine.

Connect to the machine specified by the current selection and then login. If there is no current selection then the previous machine (if any is used).

Beware: Telnet has no (protocol specified) means of determining how to send login information to the remote machine. All Login really does is to send a rope to the remote machine before passing along your typed in characters. Login assumes that the other end will understand the login information that is sent.

Connect

Connect to the machine specified by the current selection. If there is no current selection then the previous machine (if any is used).

Break

Send the Telnet Break (BRK) command. Similar to hitting the Break key on a local machine.

Synch

Send the Telnet Synch signal. Basically a "flush everything up to here" command.

Interrupt

Send the Telnet Interrupt Process (IP) command.

FlushLog

Make sure the viewer log is flushed to the backing file.

ShowOptions

Output to the viewer the current status of all Telnet Options that are currently desired and / or active.

With the control key, dumps an octal trace of the recent history; this feature is enabled by the first such click.

UserProfile entries and options:

Telnet.AutoLogin

When FALSE (the default) the user must specify -l on the command line if they want to be automatically logged-in. When TRUE the user must specify -d on the command line if they don't want to be automatically logged-in.

An example Telnet.AutoLogin entry:

Telnet.AutoLogin: FALSE

Telnet.LoginButton

Telnet.LoginButton is a BOOLEAN that simply removes the Login button from the Telnet menu thereby removing any confusion associated with it.

An example Telnet.LoginButton entry:

Telnet.LoginButton: FALSE -- don't even give me a login button

Telnet.DefaultLogin

Specifies the default Login format, defaults to: "%gvLocalName\n%gvPassword\n". Check Telnet.SpecialLogins for details.

Telnet.SpecialLogins

Telnet.SpecialLogins takes a list of paired ROPEs. The first of each pair is a machine name and the second is a format specifying the login procedure for that machine. (The default login format can be specified via the Telnet.DefaultLogin entry.) This format will be passed straight through to the remote machine with the exception that the following will be replaced with its real value:

%unixName => your UNIX login name

%xnsPassword => your XNS password

%xnsFullName => your full (all three parts) XNS login name

%xnsLocalName => the local part of your XNS login name

%xnsDomainName => the domain part of your XNS login name

%xnsOrgName => the organization part of your XNS login name

%currentSelection => the value of the current selection

%% => %

%d => pause for 2 seconds (does not generate any characters)

An example SpecialLogins entry:

Telnet.SpecialLogins: "foo" "%d%unixName\n%d%xnsPassword\n" "Arisia" "" -- the second basically says to ignore the login button for "Arisia"

Telnet.FunctionButtons

Telnet.FunctionButtons takes a list of paired ROPEs. The first of each pair is the name that you wish to give to the button and the second is the value associated with that button. These buttons will be added to the second line of the viewer menu. When clicked they will be expanded following the same rules as Telnet.SpecialLogins and then sent to the remote machine. By using the mouse button in conjunction with the shift and control keys you may change the name and value of any button, create new buttons, and deleting existing ones:

no shift, no control

left, middle, right => send the (expanded) value to the remote machine

shift, no control

left => update the value to the current selection

middle => display the name and value in the message window

right => update the name to the current selection

control, no shift

left => create a new function button with the name of the current selection

middle => display the name and value in the message window

right => delete this function button

An example Telnet.FunctionButtons entry:

Telnet.FunctionButtons: "F1" "do function #1\n" "cc" "cc -%currentSelection\n"