2 * ngIRCd -- The Next Generation IRC Daemon
3 * Copyright (c)2001-2012 Alexander Barton (alex@barton.de) and Contributors.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 * Please read the file COPYING, README and AUTHORS for more information.
26 #include "conn-func.h"
36 #include "irc-macros.h"
37 #include "irc-write.h"
40 #include "irc-login.h"
42 static void Kill_Nick PARAMS((char *Nick, char *Reason));
43 static void Change_Nick PARAMS((CLIENT * Origin, CLIENT * Target, char *NewNick,
47 * Handler for the IRC "PASS" command.
49 * @param Client The client from which this command has been received.
50 * @param Req Request structure with prefix and all parameters.
51 * @return CONNECTED or DISCONNECTED.
54 IRC_PASS( CLIENT *Client, REQUEST *Req )
56 char *type, *orig_flags;
57 int protohigh, protolow;
59 assert( Client != NULL );
60 assert( Req != NULL );
62 /* Return an error if this is not a local client */
63 if (Client_Conn(Client) <= NONE)
64 return IRC_WriteErrClient(Client, ERR_UNKNOWNCOMMAND_MSG,
65 Client_ID(Client), Req->command);
67 if (Client_Type(Client) == CLIENT_UNKNOWN && Req->argc == 1) {
68 /* Not yet registered "unknown" connection, PASS with one
69 * argument: either a regular client, service, or server
70 * using the old RFC 1459 section 4.1.1 syntax. */
71 LogDebug("Connection %d: got PASS command (RFC 1459) ...",
73 } else if ((Client_Type(Client) == CLIENT_UNKNOWN ||
74 Client_Type(Client) == CLIENT_UNKNOWNSERVER) &&
75 (Req->argc == 3 || Req->argc == 4)) {
76 /* Not yet registered "unknown" connection or outgoing server
77 * link, PASS with three or four argument: server using the
78 * RFC 2813 section 4.1.1 syntax. */
79 LogDebug("Connection %d: got PASS command (RFC 2813, new server link) ...",
81 } else if (Client_Type(Client) == CLIENT_UNKNOWN ||
82 Client_Type(Client) == CLIENT_UNKNOWNSERVER) {
83 /* Unregistered connection, but wrong number of arguments: */
84 IRC_SetPenalty(Client, 2);
85 return IRC_WriteErrClient(Client, ERR_NEEDMOREPARAMS_MSG,
86 Client_ID(Client), Req->command);
88 /* Registered connection, PASS command is not allowed! */
89 return IRC_WriteErrClient(Client, ERR_ALREADYREGISTRED_MSG,
93 Conn_SetPassword(Client_Conn(Client), Req->argv[0]);
95 /* Protocol version */
96 if (Req->argc >= 2 && strlen(Req->argv[1]) >= 4) {
100 c4 = Req->argv[1][4];
102 Req->argv[1][4] = '\0';
103 protolow = atoi(&Req->argv[1][2]);
104 Req->argv[1][2] = '\0';
105 protohigh = atoi(Req->argv[1]);
107 Req->argv[1][2] = c2;
108 Req->argv[1][4] = c4;
110 Client_SetType(Client, CLIENT_GOTPASS_2813);
112 protohigh = protolow = 0;
113 Client_SetType(Client, CLIENT_GOTPASS);
116 /* Protocol type, see doc/Protocol.txt */
117 if (Req->argc >= 2 && strlen(Req->argv[1]) > 4)
118 type = &Req->argv[1][4];
122 /* Protocol flags/options */
124 orig_flags = Req->argv[3];
128 /* Implementation, version and IRC+ flags */
129 if (Req->argc >= 3) {
130 char *impl, *ptr, *serverver, *flags;
133 ptr = strchr(impl, '|');
137 if (type && strcmp(type, PROTOIRCPLUS) == 0) {
138 /* The peer seems to be a server which supports the
139 * IRC+ protocol (see doc/Protocol.txt). */
140 serverver = ptr ? ptr + 1 : "?";
141 flags = strchr(ptr ? serverver : impl, ':');
148 "Peer on connection %d announces itself as %s-%s using protocol %d.%d/IRC+ (flags: \"%s\").",
149 Client_Conn(Client), impl, serverver,
150 protohigh, protolow, flags);
152 /* The peer seems to be a server supporting the
153 * "original" IRC protocol (RFC 2813). */
154 if (strchr(orig_flags, 'Z'))
159 "Peer on connection %d announces itself as \"%s\" using protocol %d.%d (flags: \"%s\").",
160 Client_Conn(Client), impl,
161 protohigh, protolow, flags);
163 Client_SetFlags(Client, flags);
170 * Handler for the IRC "NICK" command.
172 * @param Client The client from which this command has been received.
173 * @param Req Request structure with prefix and all parameters.
174 * @return CONNECTED or DISCONNECTED.
177 IRC_NICK( CLIENT *Client, REQUEST *Req )
179 CLIENT *intr_c, *target, *c;
180 char *nick, *user, *hostname, *modes, *info;
183 assert( Client != NULL );
184 assert( Req != NULL );
186 /* Some IRC clients, for example BitchX, send the NICK and USER
187 * commands in the wrong order ... */
188 if(Client_Type(Client) == CLIENT_UNKNOWN
189 || Client_Type(Client) == CLIENT_GOTPASS
190 || Client_Type(Client) == CLIENT_GOTNICK
192 || Client_Type(Client) == CLIENT_GOTUSER
194 || Client_Type(Client) == CLIENT_USER
195 || Client_Type(Client) == CLIENT_SERVICE
196 || (Client_Type(Client) == CLIENT_SERVER && Req->argc == 1))
198 /* User registration or change of nickname */
199 _IRC_ARGC_EQ_OR_RETURN_(Client, Req, 1)
201 /* Search "target" client */
202 if (Client_Type(Client) == CLIENT_SERVER) {
203 target = Client_Search(Req->prefix);
205 return IRC_WriteErrClient(Client,
210 /* Is this a restricted client? */
211 if (Client_HasMode(Client, 'r'))
212 return IRC_WriteErrClient(Client,
219 /* If the clients tries to change to its own nickname we won't
220 * do anything. This is how the original ircd behaves and some
221 * clients (for example Snak) expect it to be like this.
222 * But I doubt that this is "really the right thing" ... */
223 if (strcmp(Client_ID(target), Req->argv[0]) == 0)
227 /* Check that the new nickname is available. Special case:
228 * the client only changes from/to upper to lower case. */
229 if (strcasecmp(Client_ID(target), Req->argv[0]) != 0) {
230 if (!Client_CheckNick(target, Req->argv[0]))
234 if (Client_Type(target) != CLIENT_USER &&
235 Client_Type(target) != CLIENT_SERVICE &&
236 Client_Type(target) != CLIENT_SERVER) {
238 LogDebug("Connection %d: got valid NICK command ...",
239 Client_Conn( Client ));
241 /* Register new nickname of this client */
242 Client_SetID( target, Req->argv[0] );
246 Conn_SetAuthPing(Client_Conn(Client), rand());
247 IRC_WriteStrClient(Client, "PING :%ld",
248 Conn_GetAuthPing(Client_Conn(Client)));
249 LogDebug("Connection %d: sent AUTH PING %ld ...",
251 Conn_GetAuthPing(Client_Conn(Client)));
255 /* If we received a valid USER command already then
256 * register the new client! */
257 if( Client_Type( Client ) == CLIENT_GOTUSER )
258 return Login_User( Client );
260 Client_SetType( Client, CLIENT_GOTNICK );
262 /* Nickname change */
263 Change_Nick(Client, target, Req->argv[0],
264 Client_Type(Client) == CLIENT_USER ? true : false);
265 IRC_SetPenalty(target, 2);
269 } else if(Client_Type(Client) == CLIENT_SERVER ||
270 Client_Type(Client) == CLIENT_SERVICE) {
271 /* Server or service introduces new client */
273 /* Bad number of parameters? */
274 if (Req->argc != 2 && Req->argc != 7) {
275 IRC_SetPenalty(Client, 2);
276 return IRC_WriteErrClient(Client, ERR_NEEDMOREPARAMS_MSG,
277 Client_ID(Client), Req->command);
280 if (Req->argc >= 7) {
281 /* RFC 2813 compatible syntax */
283 hops = atoi(Req->argv[1]);
285 hostname = Req->argv[3];
286 token = atoi(Req->argv[4]);
287 modes = Req->argv[5] + 1;
290 /* RFC 1459 compatible syntax */
294 hostname = Client_ID(Client);
295 token = atoi(Req->argv[1]);
300 c = Client_Search(nick);
303 * the new nick is already present on this server:
304 * the new and the old one have to be disconnected now.
306 Log( LOG_ERR, "Server %s introduces already registered nick \"%s\"!", Client_ID( Client ), Req->argv[0] );
307 Kill_Nick( Req->argv[0], "Nick collision" );
311 /* Find the Server this client is connected to */
312 intr_c = Client_GetFromToken(Client, token);
314 Log( LOG_ERR, "Server %s introduces nick \"%s\" on unknown server!?", Client_ID( Client ), Req->argv[0] );
315 Kill_Nick( Req->argv[0], "Unknown server" );
319 c = Client_NewRemoteUser(intr_c, nick, hops, user, hostname,
320 token, modes, info, true);
322 /* Out of memory, we need to disconnect client to keep
323 * network state consistent! */
325 "Can't create client structure! (on connection %d)",
326 Client_Conn(Client));
327 Kill_Nick(Req->argv[0], "Server error");
331 /* RFC 2813: client is now fully registered, inform all the
332 * other servers about the new user.
333 * RFC 1459: announce the new client only after receiving the
334 * USER command, first we need more information! */
336 LogDebug("Client \"%s\" is being registered (RFC 1459) ...",
338 Client_SetType(c, CLIENT_GOTNICK);
340 Client_Introduce(Client, c, CLIENT_USER);
345 return IRC_WriteErrClient(Client, ERR_ALREADYREGISTRED_MSG,
350 * Handler for the IRC "SVSNICK" command.
352 * @param Client The client from which this command has been received.
353 * @param Req Request structure with prefix and all parameters.
354 * @return CONNECTED or DISCONNECTED.
357 IRC_SVSNICK(CLIENT *Client, REQUEST *Req)
359 CLIENT *from, *target;
361 assert(Client != NULL);
364 /* Search the originator */
365 from = Client_Search(Req->prefix);
369 /* Search the target */
370 target = Client_Search(Req->argv[0]);
371 if (!target || Client_Type(target) != CLIENT_USER) {
372 return IRC_WriteErrClient(Client, ERR_NOSUCHNICK_MSG,
373 Client_ID(Client), Req->argv[0]);
376 if (Client_Conn(target) <= NONE) {
377 /* We have to forward the message to the server handling
378 * this user; this is required to make sure all servers
379 * in the network do follow the nick name change! */
380 return IRC_WriteStrClientPrefix(Client_NextHop(target), from,
382 Req->argv[0], Req->argv[1]);
385 /* Make sure that the new nickname is valid */
386 if (!Client_CheckNick(from, Req->argv[1]))
389 Change_Nick(from, target, Req->argv[1], true);
394 * Handler for the IRC "USER" command.
396 * @param Client The client from which this command has been received.
397 * @param Req Request structure with prefix and all parameters.
398 * @return CONNECTED or DISCONNECTED.
401 IRC_USER(CLIENT * Client, REQUEST * Req)
406 assert(Client != NULL);
409 if (Client_Type(Client) == CLIENT_GOTNICK ||
411 Client_Type(Client) == CLIENT_UNKNOWN ||
413 Client_Type(Client) == CLIENT_GOTPASS)
416 _IRC_ARGC_EQ_OR_RETURN_(Client, Req, 4)
418 /* User name: only alphanumeric characters and limited
419 punctuation is allowed.*/
422 if (!isalnum((int)*ptr) &&
423 *ptr != '+' && *ptr != '-' && *ptr != '@' &&
424 *ptr != '.' && *ptr != '_') {
425 Conn_Close(Client_Conn(Client), NULL,
426 "Invalid user name", true);
432 /* Save the received username for authentication, and use
433 * it up to the first '@' as default user name (like ircd2.11,
434 * bahamut, ircd-seven, ...), prefixed with '~', if needed: */
435 Client_SetOrigUser(Client, Req->argv[0]);
436 ptr = strchr(Req->argv[0], '@');
440 ptr = Client_User(Client);
441 if (!ptr || !*ptr || *ptr == '~')
442 Client_SetUser(Client, Req->argv[0], false);
444 Client_SetUser(Client, Req->argv[0], false);
447 /* "Real name" or user info text: Don't set it to the empty
448 * string, the original ircd can't deal with such "real names"
449 * (e. g. "USER user * * :") ... */
451 Client_SetInfo(Client, Req->argv[3]);
453 Client_SetInfo(Client, "-");
455 LogDebug("Connection %d: got valid USER command ...",
456 Client_Conn(Client));
457 if (Client_Type(Client) == CLIENT_GOTNICK)
458 return Login_User(Client);
460 Client_SetType(Client, CLIENT_GOTUSER);
463 } else if (Client_Type(Client) == CLIENT_SERVER ||
464 Client_Type(Client) == CLIENT_SERVICE) {
465 /* Server/service updating an user */
466 _IRC_ARGC_EQ_OR_RETURN_(Client, Req, 4)
468 c = Client_Search(Req->prefix);
470 return IRC_WriteErrClient(Client, ERR_NOSUCHNICK_MSG,
474 Client_SetUser(c, Req->argv[0], true);
475 Client_SetOrigUser(c, Req->argv[0]);
476 Client_SetHostname(c, Req->argv[1]);
477 Client_SetInfo(c, Req->argv[3]);
479 LogDebug("Connection %d: got valid USER command for \"%s\".",
480 Client_Conn(Client), Client_Mask(c));
482 /* RFC 1459 style user registration?
483 * Introduce client to network: */
484 if (Client_Type(c) == CLIENT_GOTNICK)
485 Client_Introduce(Client, c, CLIENT_USER);
488 } else if (Client_Type(Client) == CLIENT_USER) {
489 /* Already registered connection */
490 return IRC_WriteErrClient(Client, ERR_ALREADYREGISTRED_MSG,
493 /* Unexpected/invalid connection state? */
494 return IRC_WriteErrClient(Client, ERR_NOTREGISTERED_MSG,
500 * Handler for the IRC "SERVICE" command.
502 * At the moment ngIRCd doesn't support directly linked services, so this
503 * function returns ERR_ERRONEUSNICKNAME when the SERVICE command has not been
504 * received from a peer server.
506 * @param Client The client from which this command has been received.
507 * @param Req Request structure with prefix and all parameters.
508 * @return CONNECTED or DISCONNECTED.
511 IRC_SERVICE(CLIENT *Client, REQUEST *Req)
514 char *nick, *user, *host, *info, *modes, *ptr;
517 assert(Client != NULL);
520 if (Client_Type(Client) != CLIENT_GOTPASS &&
521 Client_Type(Client) != CLIENT_SERVER)
522 return IRC_WriteErrClient(Client, ERR_ALREADYREGISTRED_MSG,
525 if (Client_Type(Client) != CLIENT_SERVER)
526 return IRC_WriteErrClient(Client, ERR_ERRONEUSNICKNAME_MSG,
527 Client_ID(Client), Req->argv[0]);
530 user = NULL; host = NULL;
531 token = atoi(Req->argv[1]);
532 hops = atoi(Req->argv[4]);
535 /* Validate service name ("nickname") */
536 c = Client_Search(nick);
538 /* Nickname collision: disconnect (KILL) both clients! */
539 Log(LOG_ERR, "Server %s introduces already registered service \"%s\"!",
540 Client_ID(Client), nick);
541 Kill_Nick(nick, "Nick collision");
545 /* Get the server to which the service is connected */
546 intr_c = Client_GetFromToken(Client, token);
548 Log(LOG_ERR, "Server %s introduces service \"%s\" on unknown server!?",
549 Client_ID(Client), nick);
550 Kill_Nick(nick, "Unknown server");
554 /* Get user and host name */
555 ptr = strchr(nick, '@');
561 host = Client_Hostname(intr_c);
562 ptr = strchr(nick, '!');
570 /* According to RFC 2812/2813 parameter 4 <type> "is currently reserved
571 * for future usage"; but we use it to transfer the modes and check
572 * that the first character is a '+' sign and ignore it otherwise. */
573 modes = (Req->argv[3][0] == '+') ? ++Req->argv[3] : "";
575 c = Client_NewRemoteUser(intr_c, nick, hops, user, host,
576 token, modes, info, true);
578 /* Couldn't create client structure, so KILL the service to
579 * keep network status consistent ... */
580 Log(LOG_ALERT, "Can't create client structure! (on connection %d)",
581 Client_Conn(Client));
582 Kill_Nick(nick, "Server error");
586 Client_Introduce(Client, c, CLIENT_SERVICE);
591 * Handler for the IRC "WEBIRC" command.
593 * @param Client The client from which this command has been received.
594 * @param Req Request structure with prefix and all parameters.
595 * @return CONNECTED or DISCONNECTED.
598 IRC_WEBIRC(CLIENT *Client, REQUEST *Req)
600 if (!Conf_WebircPwd[0] || strcmp(Req->argv[0], Conf_WebircPwd) != 0)
601 return IRC_WriteErrClient(Client, ERR_PASSWDMISMATCH_MSG,
604 LogDebug("Connection %d: got valid WEBIRC command: user=%s, host=%s, ip=%s",
605 Client_Conn(Client), Req->argv[1], Req->argv[2], Req->argv[3]);
607 Client_SetUser(Client, Req->argv[1], true);
608 Client_SetOrigUser(Client, Req->argv[1]);
609 Client_SetHostname(Client, Req->argv[2]);
610 Client_SetIPAText(Client, Req->argv[3]);
616 * Handler for the IRC "QUIT" command.
618 * @param Client The client from which this command has been received.
619 * @param Req Request structure with prefix and all parameters.
620 * @return CONNECTED or DISCONNECTED.
623 IRC_QUIT( CLIENT *Client, REQUEST *Req )
626 char quitmsg[LINE_LEN];
628 assert(Client != NULL);
632 strlcpy(quitmsg, Req->argv[0], sizeof quitmsg);
634 if (Client_Type(Client) == CLIENT_SERVER) {
636 target = Client_Search(Req->prefix);
639 "Got QUIT from %s for unknown client!?",
644 if (target != Client) {
645 Client_Destroy(target, "Got QUIT command",
646 Req->argc == 1 ? quitmsg : NULL, true);
649 Conn_Close(Client_Conn(Client), "Got QUIT command",
650 Req->argc == 1 ? quitmsg : NULL, true);
654 if (Req->argc == 1 && quitmsg[0] != '\"') {
655 /* " " to avoid confusion */
656 strlcpy(quitmsg, "\"", sizeof quitmsg);
657 strlcat(quitmsg, Req->argv[0], sizeof quitmsg-1);
658 strlcat(quitmsg, "\"", sizeof quitmsg );
661 /* User, Service, or not yet registered */
662 Conn_Close(Client_Conn(Client), "Got QUIT command",
663 Req->argc == 1 ? quitmsg : NULL, true);
672 * Handler for HTTP command, e.g. GET and POST
674 * We handle these commands here to avoid the quite long timeout when
675 * some user tries to access this IRC daemon using an web browser ...
677 * @param Client The client from which this command has been received.
678 * @param Req Request structure with prefix and all parameters.
679 * @return CONNECTED or DISCONNECTED.
682 IRC_QUIT_HTTP( CLIENT *Client, REQUEST *Req )
685 Req->argv[0] = "Oops, HTTP request received? This is IRC!";
686 return IRC_QUIT(Client, Req);
687 } /* IRC_QUIT_HTTP */
692 * Handler for the IRC "PING" command.
694 * @param Client The client from which this command has been received.
695 * @param Req Request structure with prefix and all parameters.
696 * @return CONNECTED or DISCONNECTED.
699 IRC_PING(CLIENT *Client, REQUEST *Req)
701 CLIENT *target, *from;
703 assert(Client != NULL);
707 return IRC_WriteErrClient(Client, ERR_NOORIGIN_MSG,
710 /* Don't ignore additional arguments when in "strict" mode */
711 _IRC_ARGC_LE_OR_RETURN_(Client, Req, 2)
715 /* A target has been specified ... */
716 target = Client_Search(Req->argv[1]);
718 if (!target || Client_Type(target) != CLIENT_SERVER)
719 return IRC_WriteErrClient(Client, ERR_NOSUCHSERVER_MSG,
720 Client_ID(Client), Req->argv[1]);
722 if (target != Client_ThisServer()) {
723 /* Ok, we have to forward the PING */
724 if (Client_Type(Client) == CLIENT_SERVER)
725 from = Client_Search(Req->prefix);
729 return IRC_WriteErrClient(Client,
730 ERR_NOSUCHSERVER_MSG,
731 Client_ID(Client), Req->prefix);
733 return IRC_WriteStrClientPrefix(target, from,
734 "PING %s :%s", Req->argv[0],
739 if (Client_Type(Client) == CLIENT_SERVER) {
741 from = Client_Search(Req->prefix);
745 from = Client_ThisServer();
747 return IRC_WriteErrClient(Client, ERR_NOSUCHSERVER_MSG,
748 Client_ID(Client), Req->prefix);
750 Log(LOG_DEBUG, "Connection %d: got PING, sending PONG ...",
751 Client_Conn(Client));
754 return IRC_WriteStrClient(Client, "PONG %s :%s",
755 Client_ID(from), Client_ID(Client));
757 /* Some clients depend on the argument being returned in the PONG
758 * reply (not mentioned in any RFC, though) */
759 return IRC_WriteStrClient(Client, "PONG %s :%s",
760 Client_ID(from), Req->argv[0]);
765 * Handler for the IRC "PONG" command.
767 * @param Client The client from which this command has been received.
768 * @param Req Request structure with prefix and all parameters.
769 * @return CONNECTED or DISCONNECTED.
772 IRC_PONG(CLIENT *Client, REQUEST *Req)
774 CLIENT *target, *from;
781 assert(Client != NULL);
784 /* Wrong number of arguments? */
786 if (Client_Type(Client) == CLIENT_USER)
787 return IRC_WriteErrClient(Client, ERR_NOORIGIN_MSG,
792 if (Client_Type(Client) == CLIENT_USER) {
793 _IRC_ARGC_LE_OR_RETURN_(Client, Req, 2)
797 if (Req->argc == 2 && Client_Type(Client) == CLIENT_SERVER) {
798 target = Client_Search(Req->argv[0]);
800 return IRC_WriteErrClient(Client, ERR_NOSUCHSERVER_MSG,
801 Client_ID(Client), Req->argv[0]);
803 from = Client_Search(Req->prefix);
805 if (target != Client_ThisServer() && target != from) {
806 /* Ok, we have to forward the message. */
808 return IRC_WriteErrClient(Client,
809 ERR_NOSUCHSERVER_MSG,
810 Client_ID(Client), Req->prefix);
812 if (Client_Type(Client_NextHop(target)) != CLIENT_SERVER)
816 return IRC_WriteStrClientPrefix(target, from,
817 "PONG %s :%s", s, Req->argv[1]);
821 /* The connection timestamp has already been updated when the data has
822 * been read from so socket, so we don't need to update it here. */
824 conn = Client_Conn(Client);
827 /* Check authentication PING-PONG ... */
828 auth_ping = Conn_GetAuthPing(conn);
830 LogDebug("AUTH PONG: waiting for token \"%ld\", got \"%s\" ...",
831 auth_ping, Req->argv[0]);
832 if (auth_ping == atoi(Req->argv[0])) {
833 Conn_SetAuthPing(conn, 0);
834 if (Client_Type(Client) == CLIENT_WAITAUTHPING)
837 if (!IRC_WriteStrClient(Client,
838 "To connect, type /QUOTE PONG %ld",
844 if (Client_Type(Client) == CLIENT_SERVER && Conn_LastPing(conn) == 0) {
846 "Synchronization with \"%s\" done (connection %d): %ld second%s [%ld users, %ld channels].",
847 Client_ID(Client), conn, time(NULL) - Conn_GetSignon(conn),
848 time(NULL) - Conn_GetSignon(conn) == 1 ? "" : "s",
849 Client_UserCount(), Channel_CountVisible(NULL));
850 Conn_UpdatePing(conn);
852 LogDebug("Connection %d: received PONG. Lag: %ld seconds.",
853 conn, time(NULL) - Conn_LastPing(conn));
859 * Kill all users with a specific nickname in the network.
861 * @param Nick Nickname.
862 * @param Reason Reason for the KILL.
865 Kill_Nick(char *Nick, char *Reason)
869 assert (Nick != NULL);
870 assert (Reason != NULL);
877 Log(LOG_ERR, "User(s) with nick \"%s\" will be disconnected: %s!",
880 IRC_KILL(Client_ThisServer(), &r);
884 * Change the nickname of a client.
886 * @param Origin The client which caused the nickname change.
887 * @param Target The client of which the nickname should be changed.
888 * @param NewNick The new nickname.
891 Change_Nick(CLIENT *Origin, CLIENT *Target, char *NewNick, bool InformClient)
893 if (Client_Conn(Target) > NONE) {
896 "%s \"%s\" changed nick (connection %d): \"%s\" -> \"%s\".",
897 Client_TypeText(Target), Client_Mask(Target),
898 Client_Conn(Target), Client_ID(Target), NewNick);
899 Conn_UpdateIdle(Client_Conn(Target));
902 LogDebug("%s \"%s\" changed nick: \"%s\" -> \"%s\".",
903 Client_TypeText(Target),
904 Client_Mask(Target), Client_ID(Target), NewNick);
907 /* Inform all servers and users (which have to know) of the new name */
909 IRC_WriteStrClientPrefix(Target, Target, "NICK :%s", NewNick);
910 IRC_WriteStrServersPrefix(NULL, Target, "NICK :%s", NewNick);
912 IRC_WriteStrServersPrefix(Origin, Target, "NICK :%s", NewNick);
913 IRC_WriteStrRelatedPrefix(Target, Target, false, "NICK :%s", NewNick);
915 /* Register old nickname for WHOWAS queries */
916 Client_RegisterWhowas(Target);
918 /* Save new nickname */
919 Client_SetID(Target, NewNick);