Re: Sending Telnet “DON'T” or “WON'T” after having a successful a “DO” or “WILL”.

Path	csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!1.eu.feeder.erje.net!newsfeed.fsmpi.rwth-aachen.de!newsfeed.straub-nv.de!eternal-september.org!feeder.eternal-september.org!aioe.org!.POSTED!not-for-mail
From	Michael Griffin <mrmisticismo@hotmail.com>
Newsgroups	comp.programming
Subject	Re: Sending Telnet “DON'T” or “WON'T” after having a successful a “DO” or “WILL”.
Date	Wed, 20 May 2015 00:17:05 -0500
Organization	Aioe.org NNTP Server
Lines	30
Message-ID	<555C18D1.5070005@hotmail.com> (permalink)
References	<4wQ6x.38225$yI2.34601@fx19.iad>
NNTP-Posting-Host	kVHuDFcLK9BB4lxkjbK3nw.user.speranza.aioe.org
Mime-Version	1.0
Content-Type	text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding	7bit
X-Complaints-To	abuse@aioe.org
User-Agent	Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0
X-Notice	Filtered by postfilter v. 0.8.2
Xref	csiph.com comp.programming:5444

Show key headers only | View raw

On 5/19/2015 7:25 PM, Daniel Pitts wrote:
> I apologize if this is off topic, not quite sure where else to ask.
>
> I'm implementing my own Telnet library in Java (just because).  I'm
> wondering if my library should allow sending a "WONT" or "DONT" that was
> otherwise unsolicited.  I'm also wondering if my library should reply to
> unsolicited "DONT" or "WONT" requests with the "WONT" or "DONT" reply
> respectively.  The RFC isn't quite clear on that part of the contract.
>
> All of this is assuming that I've already sent a DO and got a WILL, or
> visa versa.
>
>
> Thanks,
> Daniel.

Well usually the server is the one that initiates the negotiation.

If it's a client, then it should usually respond back with what the 
server is querying like BINARY, ECHO, NAWS etc.. But of course if an 
expected response is not received by the client, it is allowed to ask 
the server for it's preference. Unsolicited response are allowed, and 
can either be responded to, or ignored.

You want to be aware of possible loops where responses keep exchanging 
back and forth between the server and client well after they been answered.

Michael
telnet://htc.zapto.org

Thread

Sending Telnet “DON'T” or “WON'T” after having a successful a “DO” or “WILL”. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2015-05-19 17:25 -0700
  Re: Sending Telnet “DON'T” or “WON'T” after having a successful a “DO” or “WILL”. Michael Griffin <mrmisticismo@hotmail.com> - 2015-05-20 00:17 -0500
    Re: Sending Telnet “DON'T” or “WON'T” after having a successful a “DO” or “WILL”. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2015-05-20 07:38 -0700

csiph-web