RFC2812 USER command specification

[Renegade334]

The specification of the USER command was modified in RFC2812.

RFC1459: USER <username> <hostname> <servername> <realname>
RFC2812: USER <username> <mode> <unused> <realname>
where <mode> is an integer bitmask that can be comprised of the following bit fields:

• USER_MODE_WALLOPS = 4
• USER_MODE_INVISIBLE = 8

(NB. most major ircds will just ignore the mode field and set their own default usermodes on connect anyway - most clients just send 8 or 12 as an unconfigurable default value)

ref: https://tools.ietf.org/html/rfc2812#section-3.1.3

[elazar]

What impact does / should this have on the parser, since the number of parameters has remained unchanged?

[Renegade334]

Only the names of the parameters, really. Since RFC2812 supersedes RFC1459, we should at least add the new parameter names, even if the old ones are kept alongside for backwards compatibility.

The USER test case strings currently use the old syntax as well - these should be changed.