Numeric 005 Documentation
(c) 2002-2005 codemastr (Dominick Meglio) [codemastr@unrealircd.com]
(c) 2005-2009 syzop (Bram Matthys) [syzop@vulnscan.org]
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.
UnrealIRCd attempts to follow the proposed ISupport standard as much as possible. UnrealIRCd
only ignores the standard in one regard, the TARGMAX token. This token is believed to be
impractical and technically impossible to correctly implement due to existing limitations
in the standard. Therefore, this token is not currently supported.
UnrealIRCd does additionally provide a few tokens which are not specified in the standard, these
include: HCN, AWAYLEN, WATCH, SILENCE, EXTBAN, ELIST, CMDS, NAMESX, UHNAMES, and WATCHOPTS.
UnrealIRCd also maintains a few legacy tokens such as MAXCHANNELS and WALLCHOPS to ensure
compatibility until the ISupport standard is more widely accepted by clients.
Token Value Default Value Description
------------------------------------------------------------------------------------------------
MAP none none Informs the client that the /map
command is present. [Obsolete]
KNOCK none none Informs the client that the /knock
command is present. [Obsolete]
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. [Deprecated]
MAXBANS number 60 The maximum number of bans that
may be placed for a channel.
[Obsolete]
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.
[Deprecated]
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,lj, 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 ~,cqnr 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
means support for user count
searching. The C flag allows channel
creation time searching, and the T
flag allows topic set time
searching.
CMDS commands MAP,KNOCK,DCCALLOW,USERIP Specifies a series of commands that
can be useful for the client to know
exist as they may provide a more
efficient means for the client to
accomplish a specific task. This
token replaces the MAP and KNOCK
tokens.
STATUSMSG flags ~&@%+ Specifies the mode flags that may
prefix a channel name in a PRIVMSG
or NOTICE to limit who receives the
message to only those with a certain
level of access. This token will
replace the WALLCHOPS token.
EXCEPTS none none Indicates that channel ban exceptions
(+e) are supported by the server.
INVEX none none Indicates that channel invite
exceptions (+I) are supported by
the server.
MAXLIST mode:num,... b:60,e:60,I:60 Specifies the maximum number of
entries that may be added to a
particular mode list (type A modes).
This token replaces MAXBANS.
CHANLIMIT pfx:num,... #:10 Specifies the maximum number of
channels with the specified prefix
that a user may join at one time.
This token will replace MAXCHANNELS.
CHANNELLEN number 32 Provides the maximum length of a
channel name that a user can create.
NAMESX none none Indicates that extended /NAMES info
is available on this server. If the
client sends "PROTOCTL NAMESX" then
the server will, from then on, send
all channel rights in a NAMES reply
instead of only the highest right
(eg: @+Person instead of @Person).
UHNAMES none none Indicates that (other) extended
/NAMES info is available on the
server. If the client sends
"PROTOCTL UHNAMES" then the server
will, from then on, send user@host
information in a NAMES reply
(eg: @nick!ident@hostname).
WATCHOPTS flags A WATCH options supported. 'A' means
Away Notification is available.