Invalid Option Code: 91 (org.apache.commons.net.telnet.SimpleOptionHandler)

[cthulhu <ja...@eml.cc>]

Hi,
I'm absolutely new to telnet, I have readen the RFC and more or less 
understood it.
I'm playing around with a MUD client and want to answer the server that 
i can handle MXP.
 From some docs I'have found the telnet negotiation should work in the 
following way:

(Sent from server to client)   <IAC><WILL><MXP>
(Sent from client to server)   <IAC><DO><MXP>
(Sent from server to client)   <IAC><SB><MXP><IAC><SE>   
Following this sequence the server can then start sending MXP tags.

If I understood rightly how all this works I have to register a 
OptionHandler for the option MXP wich int value is 91

SimpleOptionHandler mxpopt = new SimpleOptionHandler(91, false, false, 
false, true);     // not sure about the flags but that's not the point, 
or not?
...
client.addOptionHandler(mxpopt);
...

Now, when I run the program a InvalidTelnetOtionException is thrown 
telling me that 91 is an invalid option code...
What I'm doing wrong? Does that mean that the server doesent has any MXP 
otpion(but it should, I can see MXP working with another client)? Or I 
just got everything the wrong way?

Thanks in advance for any help.

Marco

Re: Invalid Option Code: 91 (org.apache.commons.net.telnet.SimpleOptionHandler)

[cthulhu <ja...@eml.cc>]

Well, i found a hack who solves it.
I changed

    public static int NEW_ENVIRONMENT_VARIABLES = 39;

to

    public static int NEW_ENVIRONMENT_VARIABLES = 100;

in the TelnetOption class and now it works :)
Shouldn't be there a better way to handle this?

Marco


cthulhu wrote:

> Hi,
> I'm absolutely new to telnet, I have readen the RFC and more or less 
> understood it.
> I'm playing around with a MUD client and want to answer the server 
> that i can handle MXP.
> From some docs I'have found the telnet negotiation should work in the 
> following way:
>
> (Sent from server to client)   <IAC><WILL><MXP>
> (Sent from client to server)   <IAC><DO><MXP>
> (Sent from server to client)   <IAC><SB><MXP><IAC><SE>   Following 
> this sequence the server can then start sending MXP tags.
>
> If I understood rightly how all this works I have to register a 
> OptionHandler for the option MXP wich int value is 91
>
> SimpleOptionHandler mxpopt = new SimpleOptionHandler(91, false, false, 
> false, true);     // not sure about the flags but that's not the 
> point, or not?
> ...
> client.addOptionHandler(mxpopt);
> ...
>
> Now, when I run the program a InvalidTelnetOtionException is thrown 
> telling me that 91 is an invalid option code...
> What I'm doing wrong? Does that mean that the server doesent has any 
> MXP otpion(but it should, I can see MXP working with another client)? 
> Or I just got everything the wrong way?
>
> Thanks in advance for any help.
>
> Marco
>
>
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