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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">
<HTML
><HEAD
><TITLE
>Cmodes</TITLE
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><HR
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WIDTH="100%"></DIV
><DIV
CLASS="CHAPTER"
><H1
><A
NAME="CMODES"
></A
>Chapter 3. Cmodes</H1
><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="AEN276"
>3.1. Meanings of cmodes</A
></H1
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN278"
>3.1.1. +b, channel ban</A
></H2
><P
>	  Bans take one parameter, either in the form +b nick!user@host, or +b
	  nick!user@host!#channel. The wildcards * and ? are allowed, matching zero-or-more, and
	  exactly-one characters respectively. The masks will be trimmed to fit the maximum allowable
	  length for the relevant element, with wildcards added as appropriate to ensure that they still
	  match.
	</P
><P
>	  In the simple case, without a !#channel, the mask causes any matching user to be prohibited
	  from sending to the channel, knocking, or joining. Having +v set on them on the channel
	  overrides the prohibition on sending, while being invited overrides the prohibition on joining.
	</P
><P
>	  If the mask has a channel name specified, then in all situations where the user would
	  previously have been told they could not join the channel, they will instead join the channel
	  named in the ban mask, and be sent a 379 numeric describing that.
	</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN283"
>3.1.2. +c, colour filter</A
></H2
><P
>	  This cmode activates the colour filter for the channel. This filters out bold, underline,
	  reverse video, beeps, mIRC colour codes, and ANSI escapes. Note that escape sequences will
	  usually leave cruft sent to the channel, just without the escape characters themselves.
	</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN286"
>3.1.3. +d, gecos ban</A
></H2
><P
>	  This mode takes on parameter, a mask which is matched against the so-called "Real name" field
	  each client supplies, and prevents any matching clients from sending to the channel or joining
	  it. It accepts the standard * and ? wildcards.
	</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN289"
>3.1.4. +D, automatic D:line</A
></H2
><P
>          This mode takes one parameter of the form "x,y", where x and y are positive integers. These two
          integers monitor the rate at which users may join the channel. The limit is roughly y users
          every x*y seconds, but the algorithm allows for bursts. If this limit is exceeded, a D:line is
          placed on the IP-address of every user in the channel at the time.
        </P
><P
>          More precisely, a counter is maintained which is incremented by one for every user that
          successfully joins the channel, and decremented by one every x seconds. When a user joins and
          the counter is greater than limit (after incrementing), the channel is cleared out.
        </P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN293"
>3.1.5. +e, ban exemption</A
></H2
><P
>	  This mode takes on parameter of the form nick!user@host, with the usual wildcards, which
	  overrides +b and +d bans for all clients it matches.
	</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN296"
>3.1.6. +f, channel forwarding</A
></H2
><P
>	  This mode takes one parameter, the name of a channel (+f #channel). If the channel also has the
	  +i cmode set, and somebody attempts to join without either being expliticly invited, or having
	  an invex (+I), then they will instead join the channel named in the mode parameter. The client
	  will also be sent a 379 numeric giving the original and target channels.
	</P
><P
>          Users are similarly forwarded if the +J cmode is set and their attempt to join is throttled, or
          if +r is set and they are not identified.
        </P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN300"
>3.1.7. +g, allow anybody to invite</A
></H2
><P
>	  When this mode is set, anybody may use the INVITE command on the channel in question. When it
	  is unset, only channel operators may use the INVITE command.
	</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN303"
>3.1.8. +g, allow anybody to invite</A
></H2
><P
>	  When this mode is set, anybody may use the INVITE command on the channel in question. When it
	  is unset, only channel operators may use the INVITE command.
	</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN306"
>3.1.9. +i, invite only</A
></H2
><P
>	  When this cmode is set, no client can join the channel unless they have an invex (+I) or are
	  explicitly invited.
	</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN309"
>3.1.10. +I, invite exception (invex)</A
></H2
><P
>	  This mode takes a parameter of the form nick!user@host with the usual wildcards. Matching
	  clients do not need to be invited to join the channel when it is invite-only.
	</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN312"
>3.1.11. +j, jupe channel</A
></H2
><P
>	  This cmode can only be set by network operators. It basically prohibits the channel from being
	  used for any purpose, anywhere on the network. Joining such channels is not possible.
	</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN315"
>3.1.12. +J, join throttling</A
></H2
><P
>          This mode takes one parameter of the form "x,y", where x and y are positive integers. These two
          integers control the rate at which users may join the channel. The limit is roughly y users
          every x*y seconds, but the algorithm allows for bursts.
        </P
><P
>          More precisely, a counter is maintained which is incremented by one for every user that
          successfully joins the channel, and decremented by one every x seconds. When the counter is
          equal to limit, no more users may join.
        </P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN319"
>3.1.13. +k, key (channel password)</A
></H2
><P
>	  Taking one parameter, when set, this mode requires a user to supply the key in order to join
	  the channel.
	</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN322"
>3.1.14. +l, channel member limit</A
></H2
><P
>	  Takes one numeric parameter, the number of users which are allowed to be in the channel before
	  further joins are blocked.
	</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN325"
>3.1.15. +m, moderated</A
></H2
><P
>	  When a channel is set +m, only users with +o or +v on the channel can send to it.
	</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN328"
>3.1.16. +n, prevent external send to channel</A
></H2
><P
>	  When set, this mode prevents users from sending to the channel without being in it themselves.
	</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN331"
>3.1.17. +P, permanent channel</A
></H2
><P
>	  Channels with this mode (which is accessible only to network admins) set will not be destroyed
	  when the last user leaves. They will also be allowed much larger banlists.
	</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN334"
>3.1.18. +q, quiet</A
></H2
><P
>	  This mode behaves exactly like the simple form of +b (ban), except that the user may still join
	  the channel. The net effect is that they cannot send to the channel.
	</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN337"
>3.1.19. +Q, block forwarded users</A
></H2
><P
>          Channels with this mode set are not valid targets for forwarding. Any attempt to forward to
          this channel will be ignored, and the user will be handled as if the attempt was ever made (by
          sending them the relevant error message).
        </P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN340"
>3.1.20. +r, block unidentified</A
></H2
><P
>          When set, this mode prevents unidentified users from joining.
        </P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN343"
>3.1.21. +R, quiet unidentified</A
></H2
><P
>          When set, this mode prevents unidentified users from sending to the channel, although they can
          still join.
        </P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN346"
>3.1.22. +s, secret channel</A
></H2
><P
>	  When set, this mode prevents the channel from appearing in the output of the LIST command.
	</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN349"
>3.1.23. +z, reduced moderation</A
></H2
><P
>          When +z is set, the effects of +b, +q, and +m are relaxed. For each message, if that message
          would normally be blocked by one of these modes, it is instead sent to all the users who are
          currently set +o. This is intended for use in moderated debates.
        </P
><P
>          Note that +n is unaffected by this. To silence a given user completely, remove them from the
          channel.
        </P
></DIV
></DIV
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