module BBS::Telnet::Codes

The telnet command bytes and option codes, for every class that speaks telnet (BBS::Telnet, Telnet::Parser, the Gateway’s link).

BINARY_OPT: Telnet option BINARY (8-bit data, no CR NUL handling), asked for by the file transfers.
DO: Telnet DO: the sender asks the other side to use an option.
DONT: Telnet DONT: the sender asks the other side not to use an option.
ECHO_OPT: Telnet option ECHO (the server echoes what the caller types).
IAC: Telnet “interpret as command” byte, the start of every telnet command.
NAWS_OPT: Telnet option NAWS (the client reports its window size).
SB: Telnet SB: start of a subnegotiation.
SE: Telnet SE: end of a subnegotiation.
SGA_OPT: Telnet option SUPPRESS-GO-AHEAD (character-at-a-time mode).
WILL: Telnet WILL: the sender offers to use an option.
WONT: Telnet WONT: the sender refuses an option.