06-06-2011
telnet window size question
Hello!
I'm writing a small telnet client using Erlang and the gen_tcp library.
I receive IAC WILL ECHO and IAC WILL SUPPRESS_GO_AHEAD
which I respond to.
Then I receive various text output from the server, and then this:
resize: unknown character, exiting.
I'm curious as to why I do not get an IAC request for NAWS according to RFC 1073 - Telnet window size option
I tried sending IAC WILL NAWS to no avail.
Any idea what I can send to the server in order to set the window size?
As I do now have any window, I would like as large window size as possible to ease with parsing the server output.
Cheers,
Gustav
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LEARN ABOUT MINIX
fingerd
FINGERD(8) System Manager's Manual FINGERD(8)
NAME
fingerd, in.fingerd - remote user information server
SYNOPSIS
finger stream tcp nowait nobody /usr/sbin/in.fingerd in.fingerd
tcpd finger /usr/sbin/in.fingerd in.fingerd
DESCRIPTION
Fingerd is a simple protocol based on RFC742 that provides an interface to the Name and Finger programs at several network sites. The pro-
gram is supposed to return a friendly, human-oriented status report on either the system at the moment or a particular person in depth.
There is no required format and the protocol consists mostly of specifying a single ``command line''.
Fingerd listens for TCP requests at port 79. Once connected it reads a single command line terminated by a <CRLF> which is passed to fin-
ger(1). Fingerd closes its connections as soon as the output is finished.
If the line is null (i.e. just a <CRLF> is sent) then finger returns a ``default'' report that lists all people logged into the system at
that moment.
If a user name is specified (e.g. eric<CRLF>) then the response lists more extended information for only that particular user, whether
logged in or not. Allowable ``names'' in the command line include both ``login names'' and ``user names''. If a name is ambiguous, all
possible derivations are returned.
SEE ALSO
finger(1).
BUGS
Connecting directly to the server from a TIP or an equally narrow-minded TELNET-protocol user program can result in meaningless attempts at
option negotiation being sent to the server, which will foul up the command line interpretation. Fingerd should be taught to filter out
IAC's and perhaps even respond negatively (IAC WON'T) to all option commands received.
4.3 Berkeley Distribution May 23, 1986 FINGERD(8)