path: root/rfc2812_replies.txt

001    RPL_WELCOME
      "Welcome to the Internet Relay Network
       <nick>!<user>@<host>"
002    RPL_YOURHOST
      "Your host is <servername>, running version <ver>"
003    RPL_CREATED
      "This server was created <date>"
004    RPL_MYINFO
      "<servername> <version> <available user modes>
       <available channel modes>"

 - The server sends Replies 001 to 004 to a user upon
   successful registration.

005    RPL_BOUNCE
      "Try server <server name>, port <port number>"

 - Sent by the server to a user to suggest an alternative
   server.  This is often used when the connection is
   refused because the server is already full.

302    RPL_USERHOST
      ":*1<reply> *( " " <reply> )"

 - Reply format used by USERHOST to list replies to
   the query list.  The reply string is composed as
   follows:

   reply = nickname [ "*" ] "=" ( "+" / "-" ) hostname

   The '*' indicates whether the client has registered
   as an Operator.  The '-' or '+' characters represent
   whether the client has set an AWAY message or not
   respectively.

303    RPL_ISON
      ":*1<nick> *( " " <nick> )"

 - Reply format used by ISON to list replies to the
   query list.

301    RPL_AWAY
      "<nick> :<away message>"
305    RPL_UNAWAY
      ":You are no longer marked as being away"
306    RPL_NOWAWAY
      ":You have been marked as being away"

 - These replies are used with the AWAY command (if
   allowed).  RPL_AWAY is sent to any client sending a
   PRIVMSG to a client which is away.  RPL_AWAY is only
   sent by the server to which the client is connected.
   Replies RPL_UNAWAY and RPL_NOWAWAY are sent when the
   client removes and sets an AWAY message.

311    RPL_WHOISUSER
      "<nick> <user> <host> * :<real name>"
312    RPL_WHOISSERVER
      "<nick> <server> :<server info>"
313    RPL_WHOISOPERATOR
      "<nick> :is an IRC operator"
317    RPL_WHOISIDLE
      "<nick> <integer> :seconds idle"
318    RPL_ENDOFWHOIS
      "<nick> :End of WHOIS list"
319    RPL_WHOISCHANNELS
      "<nick> :*( ( "@" / "+" ) <channel> " " )"

 - Replies 311 - 313, 317 - 319 are all replies
   generated in response to a WHOIS message.  Given that
   there are enough parameters present, the answering
   server MUST either formulate a reply out of the above
   numerics (if the query nick is found) or return an
   error reply.  The '*' in RPL_WHOISUSER is there as
   the literal character and not as a wild card.  For
   each reply set, only RPL_WHOISCHANNELS may appear
   more than once (for long lists of channel names).
   The '@' and '+' characters next to the channel name
   indicate whether a client is a channel operator or
   has been granted permission to speak on a moderated
   channel.  The RPL_ENDOFWHOIS reply is used to mark
   the end of processing a WHOIS message.

314    RPL_WHOWASUSER
      "<nick> <user> <host> * :<real name>"
369    RPL_ENDOFWHOWAS
      "<nick> :End of WHOWAS"

 - When replying to a WHOWAS message, a server MUST use
   the replies RPL_WHOWASUSER, RPL_WHOISSERVER or
   ERR_WASNOSUCHNICK for each nickname in the presented
   list.  At the end of all reply batches, there MUST
   be RPL_ENDOFWHOWAS (even if there was only one reply
   and it was an error).

321    RPL_LISTSTART
      Obsolete. Not used.

322    RPL_LIST
      "<channel> <# visible> :<topic>"
323    RPL_LISTEND
      ":End of LIST"

 - Replies RPL_LIST, RPL_LISTEND mark the actual replies
   with data and end of the server's response to a LIST
   command.  If there are no channels available to return,
   only the end reply MUST be sent.

325    RPL_UNIQOPIS
      "<channel> <nickname>"

324    RPL_CHANNELMODEIS
      "<channel> <mode> <mode params>"

331    RPL_NOTOPIC
      "<channel> :No topic is set"
332    RPL_TOPIC
      "<channel> :<topic>"

 - When sending a TOPIC message to determine the
   channel topic, one of two replies is sent.  If
   the topic is set, RPL_TOPIC is sent back else
   RPL_NOTOPIC.

341    RPL_INVITING
      "<channel> <nick>"

 - Returned by the server to indicate that the
   attempted INVITE message was successful and is
   being passed onto the end client.

342    RPL_SUMMONING
      "<user> :Summoning user to IRC"

 - Returned by a server answering a SUMMON message to
   indicate that it is summoning that user.

346    RPL_INVITELIST
      "<channel> <invitemask>"
347    RPL_ENDOFINVITELIST
      "<channel> :End of channel invite list"

 - When listing the 'invitations masks' for a given channel,
   a server is required to send the list back using the
   RPL_INVITELIST and RPL_ENDOFINVITELIST messages.  A
   separate RPL_INVITELIST is sent for each active mask.
   After the masks have been listed (or if none present) a
   RPL_ENDOFINVITELIST MUST be sent.

348    RPL_EXCEPTLIST
      "<channel> <exceptionmask>"
349    RPL_ENDOFEXCEPTLIST
      "<channel> :End of channel exception list"

 - When listing the 'exception masks' for a given channel,
   a server is required to send the list back using the
   RPL_EXCEPTLIST and RPL_ENDOFEXCEPTLIST messages.  A
   separate RPL_EXCEPTLIST is sent for each active mask.
   After the masks have been listed (or if none present)
   a RPL_ENDOFEXCEPTLIST MUST be sent.

351    RPL_VERSION
      "<version>.<debuglevel> <server> :<comments>"

 - Reply by the server showing its version details.
   The <version> is the version of the software being
   used (including any patchlevel revisions) and the
   <debuglevel> is used to indicate if the server is
   running in "debug mode".

   The "comments" field may contain any comments about
   the version or further version details.

352    RPL_WHOREPLY
      "<channel> <user> <host> <server> <nick>
      ( "H" / "G" > ["*"] [ ( "@" / "+" ) ]
      :<hopcount> <real name>"

315    RPL_ENDOFWHO
      "<name> :End of WHO list"

 - The RPL_WHOREPLY and RPL_ENDOFWHO pair are used
   to answer a WHO message.  The RPL_WHOREPLY is only
   sent if there is an appropriate match to the WHO
   query.  If there is a list of parameters supplied
   with a WHO message, a RPL_ENDOFWHO MUST be sent
   after processing each list item with <name> being
   the item.

353    RPL_NAMREPLY
      "( "=" / "*" / "@" ) <channel>
       :[ "@" / "+" ] <nick> *( " " [ "@" / "+" ] <nick> )
 - "@" is used for secret channels, "*" for private
   channels, and "=" for others (public channels).

366    RPL_ENDOFNAMES
      "<channel> :End of NAMES list"

 - To reply to a NAMES message, a reply pair consisting
   of RPL_NAMREPLY and RPL_ENDOFNAMES is sent by the
   server back to the client.  If there is no channel
   found as in the query, then only RPL_ENDOFNAMES is
   returned.  The exception to this is when a NAMES
   message is sent with no parameters and all visible
   channels and contents are sent back in a series of
   RPL_NAMEREPLY messages with a RPL_ENDOFNAMES to mark
   the end.

364    RPL_LINKS
      "<mask> <server> :<hopcount> <server info>"
365    RPL_ENDOFLINKS
      "<mask> :End of LINKS list"

 - In replying to the LINKS message, a server MUST send
   replies back using the RPL_LINKS numeric and mark the
   end of the list using an RPL_ENDOFLINKS reply.

367    RPL_BANLIST
      "<channel> <banmask>"
368    RPL_ENDOFBANLIST
      "<channel> :End of channel ban list"

 - When listing the active 'bans' for a given channel,
   a server is required to send the list back using the
   RPL_BANLIST and RPL_ENDOFBANLIST messages.  A separate
   RPL_BANLIST is sent for each active banmask.  After the
   banmasks have been listed (or if none present) a
   RPL_ENDOFBANLIST MUST be sent.

371    RPL_INFO
      ":<string>"
374    RPL_ENDOFINFO
      ":End of INFO list"

 - A server responding to an INFO message is required to
   send all its 'info' in a series of RPL_INFO messages
   with a RPL_ENDOFINFO reply to indicate the end of the
   replies.

375    RPL_MOTDSTART
      ":- <server> Message of the day - "
372    RPL_MOTD
      ":- <text>"
376    RPL_ENDOFMOTD
      ":End of MOTD command"

 - When responding to the MOTD message and the MOTD file
   is found, the file is displayed line by line, with
   each line no longer than 80 characters, using
   RPL_MOTD format replies.  These MUST be surrounded
   by a RPL_MOTDSTART (before the RPL_MOTDs) and an
   RPL_ENDOFMOTD (after).

381    RPL_YOUREOPER
      ":You are now an IRC operator"

 - RPL_YOUREOPER is sent back to a client which has
   just successfully issued an OPER message and gained
   operator status.

382    RPL_REHASHING
      "<config file> :Rehashing"

 - If the REHASH option is used and an operator sends
   a REHASH message, an RPL_REHASHING is sent back to
   the operator.

383    RPL_YOURESERVICE
      "You are service <servicename>"

 - Sent by the server to a service upon successful
   registration.

391    RPL_TIME
      "<server> :<string showing server's local time>"

 - When replying to the TIME message, a server MUST send
   the reply using the RPL_TIME format above.  The string
   showing the time need only contain the correct day and
   time there.  There is no further requirement for the
   time string.

392    RPL_USERSSTART
      ":UserID   Terminal  Host"
393    RPL_USERS
      ":<username> <ttyline> <hostname>"
394    RPL_ENDOFUSERS
      ":End of users"
395    RPL_NOUSERS
      ":Nobody logged in"

 - If the USERS message is handled by a server, the
   replies RPL_USERSTART, RPL_USERS, RPL_ENDOFUSERS and
   RPL_NOUSERS are used.  RPL_USERSSTART MUST be sent
   first, following by either a sequence of RPL_USERS
   or a single RPL_NOUSER.  Following this is
   RPL_ENDOFUSERS.

200    RPL_TRACELINK
      "Link <version & debug level> <destination>
       <next server> V<protocol version>
       <link uptime in seconds> <backstream sendq>
       <upstream sendq>"
201    RPL_TRACECONNECTING
      "Try. <class> <server>"
202    RPL_TRACEHANDSHAKE
      "H.S. <class> <server>"
203    RPL_TRACEUNKNOWN
      "???? <class> [<client IP address in dot form>]"
204    RPL_TRACEOPERATOR
      "Oper <class> <nick>"
205    RPL_TRACEUSER
      "User <class> <nick>"
206    RPL_TRACESERVER
      "Serv <class> <int>S <int>C <server>
       <nick!user|*!*>@<host|server> V<protocol version>"
207    RPL_TRACESERVICE
      "Service <class> <name> <type> <active type>"
208    RPL_TRACENEWTYPE
      "<newtype> 0 <client name>"
209    RPL_TRACECLASS
      "Class <class> <count>"
210    RPL_TRACERECONNECT
      Unused.
261    RPL_TRACELOG
      "File <logfile> <debug level>"
262    RPL_TRACEEND
      "<server name> <version & debug level> :End of TRACE"

 - The RPL_TRACE* are all returned by the server in
   response to the TRACE message.  How many are
   returned is dependent on the TRACE message and
   whether it was sent by an operator or not.  There
   is no predefined order for which occurs first.
   Replies RPL_TRACEUNKNOWN, RPL_TRACECONNECTING and
   RPL_TRACEHANDSHAKE are all used for connections
   which have not been fully established and are either
   unknown, still attempting to connect or in the
   process of completing the 'server handshake'.
   RPL_TRACELINK is sent by any server which handles
   a TRACE message and has to pass it on to another
   server.  The list of RPL_TRACELINKs sent in
   response to a TRACE command traversing the IRC
   network should reflect the actual connectivity of
   the servers themselves along that path.

   RPL_TRACENEWTYPE is to be used for any connection
   which does not fit in the other categories but is
   being displayed anyway.
   RPL_TRACEEND is sent to indicate the end of the list.

211    RPL_STATSLINKINFO
      "<linkname> <sendq> <sent messages>
       <sent Kbytes> <received messages>
       <received Kbytes> <time open>"

 - reports statistics on a connection.  <linkname>
   identifies the particular connection, <sendq> is
   the amount of data that is queued and waiting to be
   sent <sent messages> the number of messages sent,
   and <sent Kbytes> the amount of data sent, in
   Kbytes. <received messages> and <received Kbytes>
   are the equivalent of <sent messages> and <sent
   Kbytes> for received data, respectively.  <time
   open> indicates how long ago the connection was
   opened, in seconds.

212    RPL_STATSCOMMANDS
      "<command> <count> <byte count> <remote count>"

 - reports statistics on commands usage.

219    RPL_ENDOFSTATS
      "<stats letter> :End of STATS report"

242    RPL_STATSUPTIME
      ":Server Up %d days %d:%02d:%02d"

 - reports the server uptime.

243    RPL_STATSOLINE
      "O <hostmask> * <name>"

 - reports the allowed hosts from where user may become IRC
   operators.

221    RPL_UMODEIS
      "<user mode string>"

 - To answer a query about a client's own mode,
   RPL_UMODEIS is sent back.

234    RPL_SERVLIST
      "<name> <server> <mask> <type> <hopcount> <info>"

235    RPL_SERVLISTEND
      "<mask> <type> :End of service listing"

 - When listing services in reply to a SERVLIST message,
   a server is required to send the list back using the
   RPL_SERVLIST and RPL_SERVLISTEND messages.  A separate
   RPL_SERVLIST is sent for each service.  After the
   services have been listed (or if none present) a
   RPL_SERVLISTEND MUST be sent.

251    RPL_LUSERCLIENT
      ":There are <integer> users and <integer>
       services on <integer> servers"
252    RPL_LUSEROP
      "<integer> :operator(s) online"
253    RPL_LUSERUNKNOWN
      "<integer> :unknown connection(s)"
254    RPL_LUSERCHANNELS
      "<integer> :channels formed"
255    RPL_LUSERME
      ":I have <integer> clients and <integer>
        servers"

 - In processing an LUSERS message, the server
   sends a set of replies from RPL_LUSERCLIENT,
   RPL_LUSEROP, RPL_USERUNKNOWN,
   RPL_LUSERCHANNELS and RPL_LUSERME.  When
   replying, a server MUST send back
   RPL_LUSERCLIENT and RPL_LUSERME.  The other
   replies are only sent back if a non-zero count
   is found for them.

256    RPL_ADMINME
      "<server> :Administrative info"
257    RPL_ADMINLOC1
      ":<admin info>"
258    RPL_ADMINLOC2
      ":<admin info>"
259    RPL_ADMINEMAIL
      ":<admin info>"

 - When replying to an ADMIN message, a server
   is expected to use replies RPL_ADMINME
   through to RPL_ADMINEMAIL and provide a text
   message with each.  For RPL_ADMINLOC1 a
   description of what city, state and country
   the server is in is expected, followed by
   details of the institution (RPL_ADMINLOC2)

   and finally the administrative contact for the
   server (an email address here is REQUIRED)
   in RPL_ADMINEMAIL.

263    RPL_TRYAGAIN
      "<command> :Please wait a while and try again."

 - When a server drops a command without processing it,
   it MUST use the reply RPL_TRYAGAIN to inform the
   originating client.

401    ERR_NOSUCHNICK
      "<nickname> :No such nick/channel"

  - Used to indicate the nickname parameter supplied to a
    command is currently unused.

402    ERR_NOSUCHSERVER
      "<server name> :No such server"

 - Used to indicate the server name given currently
   does not exist.

403    ERR_NOSUCHCHANNEL
      "<channel name> :No such channel"

 - Used to indicate the given channel name is invalid.

404    ERR_CANNOTSENDTOCHAN
      "<channel name> :Cannot send to channel"

 - Sent to a user who is either (a) not on a channel
   which is mode +n or (b) not a chanop (or mode +v) on
   a channel which has mode +m set or where the user is
   banned and is trying to send a PRIVMSG message to
   that channel.

405    ERR_TOOMANYCHANNELS
      "<channel name> :You have joined too many channels"

 - Sent to a user when they have joined the maximum
   number of allowed channels and they try to join
   another channel.

406    ERR_WASNOSUCHNICK
      "<nickname> :There was no such nickname"

 - Returned by WHOWAS to indicate there is no history
   information for that nickname.

407    ERR_TOOMANYTARGETS
      "<target> :<error code> recipients. <abort message>"

 - Returned to a client which is attempting to send a
   PRIVMSG/NOTICE using the user@host destination format
   and for a user@host which has several occurrences.

 - Returned to a client which trying to send a
   PRIVMSG/NOTICE to too many recipients.

 - Returned to a client which is attempting to JOIN a safe
   channel using the shortname when there are more than one
   such channel.

408    ERR_NOSUCHSERVICE
      "<service name> :No such service"

 - Returned to a client which is attempting to send a SQUERY
   to a service which does not exist.

409    ERR_NOORIGIN
      ":No origin specified"

 - PING or PONG message missing the originator parameter.

411    ERR_NORECIPIENT
      ":No recipient given (<command>)"
412    ERR_NOTEXTTOSEND
      ":No text to send"
413    ERR_NOTOPLEVEL
      "<mask> :No toplevel domain specified"
414    ERR_WILDTOPLEVEL
      "<mask> :Wildcard in toplevel domain"
415    ERR_BADMASK
      "<mask> :Bad Server/host mask"

 - 412 - 415 are returned by PRIVMSG to indicate that
   the message wasn't delivered for some reason.
   ERR_NOTOPLEVEL and ERR_WILDTOPLEVEL are errors that
   are returned when an invalid use of
   "PRIVMSG $<server>" or "PRIVMSG #<host>" is attempted.

421    ERR_UNKNOWNCOMMAND
      "<command> :Unknown command"

 - Returned to a registered client to indicate that the
   command sent is unknown by the server.

422    ERR_NOMOTD
      ":MOTD File is missing"

 - Server's MOTD file could not be opened by the server.

423    ERR_NOADMININFO
      "<server> :No administrative info available"

 - Returned by a server in response to an ADMIN message
   when there is an error in finding the appropriate
   information.

424    ERR_FILEERROR
      ":File error doing <file op> on <file>"

 - Generic error message used to report a failed file
   operation during the processing of a message.

431    ERR_NONICKNAMEGIVEN
      ":No nickname given"

 - Returned when a nickname parameter expected for a
   command and isn't found.

432    ERR_ERRONEUSNICKNAME
      "<nick> :Erroneous nickname"

 - Returned after receiving a NICK message which contains
   characters which do not fall in the defined set.  See
   section 2.3.1 for details on valid nicknames.

433    ERR_NICKNAMEINUSE
      "<nick> :Nickname is already in use"

 - Returned when a NICK message is processed that results
   in an attempt to change to a currently existing
   nickname.

436    ERR_NICKCOLLISION
      "<nick> :Nickname collision KILL from <user>@<host>"

 - Returned by a server to a client when it detects a
   nickname collision (registered of a NICK that
   already exists by another server).

437    ERR_UNAVAILRESOURCE
      "<nick/channel> :Nick/channel is temporarily unavailable"

 - Returned by a server to a user trying to join a channel
   currently blocked by the channel delay mechanism.

 - Returned by a server to a user trying to change nickname
   when the desired nickname is blocked by the nick delay
   mechanism.

441    ERR_USERNOTINCHANNEL
      "<nick> <channel> :They aren't on that channel"

 - Returned by the server to indicate that the target
   user of the command is not on the given channel.

442    ERR_NOTONCHANNEL
      "<channel> :You're not on that channel"

 - Returned by the server whenever a client tries to
   perform a channel affecting command for which the
   client isn't a member.

443    ERR_USERONCHANNEL
      "<user> <channel> :is already on channel"

 - Returned when a client tries to invite a user to a
   channel they are already on.

444    ERR_NOLOGIN
      "<user> :User not logged in"

 - Returned by the summon after a SUMMON command for a
   user was unable to be performed since they were not
   logged in.

445    ERR_SUMMONDISABLED
      ":SUMMON has been disabled"

 - Returned as a response to the SUMMON command.  MUST be
   returned by any server which doesn't implement it.

446    ERR_USERSDISABLED
      ":USERS has been disabled"

 - Returned as a response to the USERS command.  MUST be
   returned by any server which does not implement it.

451    ERR_NOTREGISTERED
      ":You have not registered"

 - Returned by the server to indicate that the client
   MUST be registered before the server will allow it
   to be parsed in detail.

461    ERR_NEEDMOREPARAMS
      "<command> :Not enough parameters"

 - Returned by the server by numerous commands to
   indicate to the client that it didn't supply enough
   parameters.

462    ERR_ALREADYREGISTRED
      ":Unauthorized command (already registered)"

 - Returned by the server to any link which tries to
   change part of the registered details (such as
   password or user details from second USER message).

463    ERR_NOPERMFORHOST
      ":Your host isn't among the privileged"

 - Returned to a client which attempts to register with
   a server which does not been setup to allow
   connections from the host the attempted connection
   is tried.

464    ERR_PASSWDMISMATCH
      ":Password incorrect"

 - Returned to indicate a failed attempt at registering
   a connection for which a password was required and
   was either not given or incorrect.

465    ERR_YOUREBANNEDCREEP
      ":You are banned from this server"

 - Returned after an attempt to connect and register
   yourself with a server which has been setup to
   explicitly deny connections to you.

466    ERR_YOUWILLBEBANNED

 - Sent by a server to a user to inform that access to the
   server will soon be denied.

467    ERR_KEYSET
      "<channel> :Channel key already set"
471    ERR_CHANNELISFULL
      "<channel> :Cannot join channel (+l)"
472    ERR_UNKNOWNMODE
      "<char> :is unknown mode char to me for <channel>"
473    ERR_INVITEONLYCHAN
      "<channel> :Cannot join channel (+i)"
474    ERR_BANNEDFROMCHAN
      "<channel> :Cannot join channel (+b)"
475    ERR_BADCHANNELKEY
      "<channel> :Cannot join channel (+k)"
476    ERR_BADCHANMASK
      "<channel> :Bad Channel Mask"
477    ERR_NOCHANMODES
      "<channel> :Channel doesn't support modes"
478    ERR_BANLISTFULL
      "<channel> <char> :Channel list is full"

481    ERR_NOPRIVILEGES
      ":Permission Denied- You're not an IRC operator"

 - Any command requiring operator privileges to operate
   MUST return this error to indicate the attempt was
   unsuccessful.

482    ERR_CHANOPRIVSNEEDED
      "<channel> :You're not channel operator"

 - Any command requiring 'chanop' privileges (such as
   MODE messages) MUST return this error if the client
   making the attempt is not a chanop on the specified
   channel.

483    ERR_CANTKILLSERVER
      ":You can't kill a server!"

 - Any attempts to use the KILL command on a server
   are to be refused and this error returned directly
   to the client.

484    ERR_RESTRICTED
      ":Your connection is restricted!"

 - Sent by the server to a user upon connection to indicate
   the restricted nature of the connection (user mode "+r").

485    ERR_UNIQOPPRIVSNEEDED
      ":You're not the original channel operator"

 - Any MODE requiring "channel creator" privileges MUST
   return this error if the client making the attempt is not
   a chanop on the specified channel.

491    ERR_NOOPERHOST
      ":No O-lines for your host"

 - If a client sends an OPER message and the server has
   not been configured to allow connections from the
   client's host as an operator, this error MUST be
   returned.

501    ERR_UMODEUNKNOWNFLAG
      ":Unknown MODE flag"

 - Returned by the server to indicate that a MODE
   message was sent with a nickname parameter and that
   the a mode flag sent was not recognized.

502    ERR_USERSDONTMATCH
      ":Cannot change mode for other users"

 - Error sent to any user trying to view or change the
   user mode for a user other than themselves.