Fired when a Telnet WILL OPTION command comes from the Telnet server.
The 'callback' is called when the 'Will' event is emited.
The argument 'e' has the following properties:
For a list of option codes and their descriptions, please look at the Telnet RFCs. The following are a few examples:
|0 (TRANSMIT-BINARY)||Enables or disables binary (8 bit) transmission.|
|1 (ECHO)||Telnet ECHO option. Specifies whether bytes sent should be echoed or not.|
|3 (SUPPRESS-GO-AHEAD)||Used to enable or disable transmission of the Telnet GO_AHEAD command.|
|24 (TERMINAL-TYPE)||Allows or disallows terminal type negotiation.|
|31 (NAWS)||Allows or disallows window size negotiation.|