Numeric 005 Documentation (c) 2002 codemastr (Dominick Meglio) [codemastr@unrealircd.com]
(As of Unreal3.2-beta11)

Numeric 005 allows the server to inform the client of any protocol specific features in the
IRCd.  The numeric is sent at connection time immediately after numeric 004. Additionally
the numeric is sent when a /version request is made by a local user, for remote users
numeric 105 is used but contains the same information.

Due to the limit imposed by RFC1459 on both the buffer size (512) and the amount of
parameters that can be sent in a single command (15) a total of 13 parameters may be
specified in each 005. Because of this, a client must be able to accept multiple 005s
consecutively. The format for the 005 message is as follows:

":" <servername> "005" SPACE <nickname> SPACE <token[=value]> SPACE ... ":are supported
by this server"

Currently UnrealIRCd supports several tokens that are included in numeric 005. A list of
all tokens, their respective value and a brief description are listed below.

Token         Value           Default Value                Description
------------------------------------------------------------------------------------------------
MAP           none            none                         Informs the client that the /map 
                                                           command is present.

KNOCK         none            none                         Informs the client that the /knock
                                                           command is present.

SAFELIST      none            none                         The LIST command is sent in 
                                                           multiple iterations so that the
                                                           client's queue does not get filled
                                                           causing the user to be killed.

HCN           none            none                         The server supports the HCN
                                                           (Hybrid Connect Notice) protocol.

MAXCHANNELS   number          10                           The maximum number of channels a
                                                           user may join.

MAXBANS       number          60                           The maximum number of bans that
                                                           may be placed for a channel.

NICKLEN       number          30                           Maximum length of a user's
                                                           nickname.

TOPICLEN      number          307                          Maximum length of a channel's
                                                           topic.

KICKLEN       number          307                          Maximum length of a kick reason.

MAXTARGETS    number          20                           Maximum targets for the PRIVMSG
                                                           command.

AWAYLEN       number          307                          Maximum length of an away message.

WALLCHOPS     none            none                         Indicates that you may use
                                                           NOTICE/PRIVMSG to send to +ohv by
                                                           using PRIVMSG/NOTICE [@|%|+]#channel.
 
WATCH         number          128                          Indicates the presence of the
                                                           WATCH command and specifies the
                                                           maximum number of watch entries.

SILENCE       number          15                           Indicates the maximum number of
                                                           entries on the silence list.

MODES         number          13                           Indicates the number of channel
                                                           modes with parameters that may be
                                                           sent at one time.

CHANTYPES     chars           #                            Indicates the prefixes available
                                                           for channels.
 
PREFIX        (modes)prefixes (qaohv)~&@%+                 Indicates the modes on a channel
                                                           that corespond to the given
                                                           nickname prefixes.

CHANMODES     A,B,C,D         be,kfL,l,                    Specifies how each channel mode is
                              psmntirRcOAQKVHGCuzNSMT      set/unset. The A section specifies
                                                           modes that add a nick/mask to a
                                                           list. The B section specifies
                                                           modes that require a parameter
                                                           to be both set and unset. The C
                                                           section specifies modes that
                                                           only require a parameter to be
                                                           set, and the D section
                                                           specifies modes that require no
                                                           parameters.

NETWORK       string          no default value             Specifies the name of the
                                                           network that the server is
                                                           connected to.

CASEMAPPING   string          ascii                        Specifies what definition the
                                                           server uses when determining if
                                                           characters are upper/lowercase
                                                           of eachother.

EXTBAN        prefix,types    ~,cqr                        Specifies what extbans are
                                                           supported by the server. The prefix
                                                           defines which character indicates
                                                           an extban and the types defines
                                                           which extbans the server supports.

ELIST         flags           MNUCT                        Specifies the set of extended LIST
                                                           options supported. The M flag 
                                                           indicates mask based searching,
                                                           the N flag indicates negative
                                                           mask based searching. The U flag
                                                           meaning support for user count
                                                           searching. The C flag allows channel
                                                           creation time searching, and the T
                                                           flag allows topic set time 
                                                           searching.