2 * ngIRCd -- The Next Generation IRC Daemon
3 * Copyright (c)2001,2002 by Alexander Barton (alex@barton.de)
5 * Dieses Programm ist freie Software. Sie koennen es unter den Bedingungen
6 * der GNU General Public License (GPL), wie von der Free Software Foundation
7 * herausgegeben, weitergeben und/oder modifizieren, entweder unter Version 2
8 * der Lizenz oder (wenn Sie es wuenschen) jeder spaeteren Version.
9 * Naehere Informationen entnehmen Sie bitter der Datei COPYING. Eine Liste
10 * der an ngIRCd beteiligten Autoren finden Sie in der Datei AUTHORS.
12 * $Id: irc.c,v 1.45 2002/01/28 01:18:14 alex Exp $
17 * Revision 1.45 2002/01/28 01:18:14 alex
18 * - connectierenden Servern werden Channels nun mit NJOIN bekannt gemacht.
20 * Revision 1.44 2002/01/28 00:55:08 alex
21 * - ein neu connectierender Server wird nun korrekt im Netz bekannt gemacht.
23 * Revision 1.43 2002/01/27 21:56:39 alex
24 * - IRC_WriteStrServersPrefixID() und IRC_WriteStrClientPrefixID() wieder entfernt.
25 * - einige kleinere Fixes bezueglich Channels ...
27 * Revision 1.42 2002/01/27 18:28:01 alex
28 * - bei NICK wurde das falsche Prefix an andere Server weitergegeben.
30 * Revision 1.41 2002/01/27 17:15:49 alex
31 * - anderungen an den Funktions-Prototypen von IRC_WriteStrChannel() und
32 * IRC_WriteStrChannelPrefix(),
33 * - neue: IRC_WriteStrClientPrefixID() und IRC_WriteStrServersPrefixID().
35 * Revision 1.40 2002/01/26 18:43:11 alex
36 * - neue Funktionen IRC_WriteStrChannelPrefix() und IRC_WriteStrChannel(),
37 * die IRC_Write_xxx_Related() sind dafuer entfallen.
38 * - IRC_PRIVMSG() kann nun auch mit Channels als Ziel umgehen.
40 * Revision 1.39 2002/01/21 00:05:11 alex
41 * - neue Funktionen IRC_JOIN und IRC_PART begonnen, ebenso die Funktionen
42 * IRC_WriteStrRelatedPrefix und IRC_WriteStrRelatedChannelPrefix().
43 * - diverse Aenderungen im Zusammenhang mit Channels.
45 * Revision 1.38 2002/01/18 15:31:32 alex
46 * - die User-Modes bei einem NICK von einem Server wurden falsch uebernommen.
48 * Revision 1.37 2002/01/16 22:10:18 alex
49 * - IRC_LUSERS() implementiert.
51 * Revision 1.36 2002/01/11 23:50:55 alex
52 * - LINKS implementiert, LUSERS begonnen.
54 * Revision 1.35 2002/01/09 21:30:45 alex
55 * - WHOIS wurde faelschlicherweise an User geforwarded statt vom Server beantwortet.
57 * Revision 1.34 2002/01/09 01:09:58 alex
58 * - WHOIS wird im "Strict-RFC-Mode" nicht mehr automatisch geforwarded,
59 * - andere Server werden nun ueber bisherige Server und User informiert.
61 * Revision 1.33 2002/01/07 23:42:12 alex
62 * - Es werden fuer alle Server eigene Token generiert,
63 * - QUIT von einem Server fuer einen User wird an andere Server geforwarded,
64 * - ebenso NICK-Befehle, die "fremde" User einfuehren.
66 * Revision 1.32 2002/01/07 16:02:36 alex
67 * - Loglevel von Remote-Mode-Aenderungen angepasst (nun Debug).
68 * - Im Debug-Mode werden nun auch PING's protokolliert.
70 * Revision 1.31 2002/01/07 15:39:46 alex
71 * - Server nimmt nun Server-Links an: PASS und SERVER entsprechend angepasst.
72 * - MODE und NICK melden nun die Aenderungen an andere Server.
74 * Revision 1.30 2002/01/06 15:21:29 alex
75 * - Loglevel und Meldungen nochmals ueberarbeitet.
76 * - QUIT und SQUIT forwarden nun den Grund der Trennung,
77 * - WHOIS wird nun immer an den "Original-Server" weitergeleitet.
79 * Revision 1.29 2002/01/05 23:24:54 alex
80 * - WHOIS erweitert: Anfragen koennen an andere Server weitergeleitet werden.
81 * - Vorbereitungen fuer Ident-Abfragen bei neuen Client-Strukturen.
83 * Revision 1.28 2002/01/05 20:08:02 alex
84 * - Div. Aenderungen fuer die Server-Links (u.a. WHOIS, QUIT, NICK angepasst).
85 * - Neue Funktionen IRC_WriteStrServer() und IRC_WriteStrServerPrefix().
87 * Revision 1.27 2002/01/05 19:15:03 alex
88 * - Fehlerpruefung bei select() in der "Hauptschleife" korrigiert.
90 * Revision 1.26 2002/01/05 16:51:18 alex
91 * - das Passwort von Servern wird nun ueberprueft (PASS- und SERVER-Befehl).
93 * Revision 1.25 2002/01/05 00:48:33 alex
94 * - bei SQUIT wurde immer die Verbindung getrennt, auch bei Remote-Servern.
96 * Revision 1.24 2002/01/04 17:58:44 alex
97 * - IRC_WriteStrXXX()-Funktionen eingefuehrt, groessere Anpassungen daran.
98 * - neuer Befehl SQUIT, QUIT an Server-Links angepasst.
100 * Revision 1.23 2002/01/04 01:36:40 alex
101 * - Loglevel ein wenig angepasst.
103 * Revision 1.22 2002/01/04 01:21:47 alex
104 * - Client-Strukruren werden nur noch ueber Funktionen angesprochen.
105 * - Weitere Anpassungen und Erweiterungen der Server-Links.
107 * Revision 1.21 2002/01/03 02:26:51 alex
108 * - neue Befehle SERVER und NJOIN begonnen,
109 * - begonnen, diverse IRC-Befehle an Server-Links anzupassen.
111 * Revision 1.20 2002/01/02 12:46:41 alex
112 * - die Gross- und Kleinschreibung des Nicks kann mit NICK nun geaendert werden.
114 * Revision 1.19 2002/01/02 02:51:39 alex
115 * - Copyright-Texte angepasst.
116 * - neuer Befehl "ERROR".
118 * Revision 1.17 2001/12/31 15:33:13 alex
119 * - neuer Befehl NAMES, kleinere Bugfixes.
120 * - Bug bei PING behoben: war zu restriktiv implementiert :-)
122 * Revision 1.16 2001/12/31 02:18:51 alex
123 * - viele neue Befehle (WHOIS, ISON, OPER, DIE, RESTART),
124 * - neuen Header "defines.h" mit (fast) allen Konstanten.
125 * - Code Cleanups und viele "kleine" Aenderungen & Bugfixes.
127 * Revision 1.15 2001/12/30 19:26:11 alex
128 * - Unterstuetzung fuer die Konfigurationsdatei eingebaut.
130 * Revision 1.14 2001/12/30 11:42:00 alex
131 * - der Server meldet nun eine ordentliche "Start-Zeit".
133 * Revision 1.13 2001/12/29 03:10:06 alex
134 * - Neue Funktion IRC_MODE() implementiert, div. Aenderungen.
135 * - neue configure-Optione "--enable-strict-rfc".
137 * Revision 1.12 2001/12/27 19:17:26 alex
138 * - neue Befehle PRIVMSG, NOTICE, PING.
140 * Revision 1.11 2001/12/27 16:55:41 alex
141 * - neu: IRC_WriteStrRelated(), Aenderungen auch in IRC_WriteStrClient().
143 * Revision 1.10 2001/12/26 22:48:53 alex
144 * - MOTD-Datei ist nun konfigurierbar und wird gelesen.
146 * Revision 1.9 2001/12/26 14:45:37 alex
149 * Revision 1.8 2001/12/26 03:21:46 alex
150 * - PING/PONG-Befehle implementiert,
151 * - Meldungen ueberarbeitet: enthalten nun (fast) immer den Nick.
153 * Revision 1.7 2001/12/25 23:25:18 alex
154 * - und nochmal Aenderungen am Logging ;-)
156 * Revision 1.6 2001/12/25 23:13:33 alex
157 * - Debug-Meldungen angepasst.
159 * Revision 1.5 2001/12/25 22:02:42 alex
160 * - neuer IRC-Befehl "/QUIT". Verbessertes Logging & Debug-Ausgaben.
162 * Revision 1.4 2001/12/25 19:19:30 alex
163 * - bessere Fehler-Abfragen, diverse Bugfixes.
164 * - Nicks werden nur einmal vergeben :-)
165 * - /MOTD wird unterstuetzt.
167 * Revision 1.3 2001/12/24 01:34:06 alex
168 * - USER und NICK wird nun in beliebiger Reihenfolge akzeptiert (wg. BitchX)
169 * - MOTD-Ausgabe begonnen zu implementieren.
171 * Revision 1.2 2001/12/23 21:57:16 alex
172 * - erste IRC-Befehle zu implementieren begonnen.
174 * Revision 1.1 2001/12/14 08:13:43 alex
175 * - neues Modul begonnen :-)
196 #include "messages.h"
204 #define CONNECTED TRUE
205 #define DISCONNECTED FALSE
208 LOCAL BOOLEAN Hello_User( CLIENT *Client );
209 LOCAL BOOLEAN Show_MOTD( CLIENT *Client );
211 LOCAL VOID Kill_Nick( CHAR *Nick );
214 GLOBAL VOID IRC_Init( VOID )
219 GLOBAL VOID IRC_Exit( VOID )
224 GLOBAL BOOLEAN IRC_WriteStrClient( CLIENT *Client, CHAR *Format, ... )
227 BOOLEAN ok = CONNECTED;
230 assert( Client != NULL );
231 assert( Format != NULL );
233 va_start( ap, Format );
234 vsnprintf( buffer, 1000, Format, ap );
237 /* an den Client selber */
238 ok = IRC_WriteStrClientPrefix( Client, Client_ThisServer( ), buffer );
241 } /* IRC_WriteStrClient */
244 GLOBAL BOOLEAN IRC_WriteStrClientPrefix( CLIENT *Client, CLIENT *Prefix, CHAR *Format, ... )
246 /* Text an Clients, lokal bzw. remote, senden. */
251 assert( Client != NULL );
252 assert( Format != NULL );
253 assert( Prefix != NULL );
255 va_start( ap, Format );
256 vsnprintf( buffer, 1000, Format, ap );
259 return Conn_WriteStr( Client_Conn( Client_NextHop( Client )), ":%s %s", Client_ID( Prefix ), buffer );
260 } /* IRC_WriteStrClientPrefix */
263 GLOBAL BOOLEAN IRC_WriteStrChannel( CLIENT *Client, CHANNEL *Chan, BOOLEAN Remote, CHAR *Format, ... )
268 assert( Client != NULL );
269 assert( Format != NULL );
271 va_start( ap, Format );
272 vsnprintf( buffer, 1000, Format, ap );
275 return IRC_WriteStrChannelPrefix( Client, Chan, Client_ThisServer( ), Remote, buffer );
276 } /* IRC_WriteStrChannel */
279 GLOBAL BOOLEAN IRC_WriteStrChannelPrefix( CLIENT *Client, CHANNEL *Chan, CLIENT *Prefix, BOOLEAN Remote, CHAR *Format, ... )
282 BOOLEAN sock[MAX_CONNECTIONS], ok = CONNECTED, i;
288 assert( Client != NULL );
289 assert( Chan != NULL );
290 assert( Prefix != NULL );
291 assert( Format != NULL );
293 va_start( ap, Format );
294 vsnprintf( buffer, 1000, Format, ap );
297 for( i = 0; i < MAX_CONNECTIONS; i++ ) sock[i] = FALSE;
299 /* An alle Clients, die in den selben Channels sind.
300 * Dabei aber nur einmal je Remote-Server */
301 cl2chan = Channel_FirstMember( Chan );
304 c = Channel_GetClient( cl2chan );
307 if( Client_Conn( c ) <= NONE ) c = NULL;
308 else if( Client_Type( c ) == CLIENT_SERVER ) c = NULL;
310 if( c ) c = Client_NextHop( c );
312 if( c && ( c != Client ))
314 /* Ok, anderer Client */
315 s = Client_Conn( c );
317 assert( s < MAX_CONNECTIONS );
320 cl2chan = Channel_NextMember( Chan, cl2chan );
324 for( i = 0; i < MAX_CONNECTIONS; i++ )
328 ok = Conn_WriteStr( i, ":%s %s", Client_ID( Prefix ), buffer );
333 } /* IRC_WriteStrChannelPrefix */
336 GLOBAL VOID IRC_WriteStrServers( CLIENT *ExceptOf, CHAR *Format, ... )
341 assert( Format != NULL );
343 va_start( ap, Format );
344 vsnprintf( buffer, 1000, Format, ap );
347 /* an den Client selber */
348 return IRC_WriteStrServersPrefix( ExceptOf, Client_ThisServer( ), buffer );
349 } /* IRC_WriteStrServers */
352 GLOBAL VOID IRC_WriteStrServersPrefix( CLIENT *ExceptOf, CLIENT *Prefix, CHAR *Format, ... )
358 assert( Format != NULL );
359 assert( Prefix != NULL );
361 va_start( ap, Format );
362 vsnprintf( buffer, 1000, Format, ap );
368 if(( Client_Type( c ) == CLIENT_SERVER ) && ( Client_Conn( c ) > NONE ) && ( c != Client_ThisServer( )) && ( c != ExceptOf ))
370 /* Ziel-Server gefunden */
371 IRC_WriteStrClientPrefix( c, Prefix, buffer );
373 c = Client_Next( c );
375 } /* IRC_WriteStrServersPrefix */
378 GLOBAL BOOLEAN IRC_PASS( CLIENT *Client, REQUEST *Req )
380 assert( Client != NULL );
381 assert( Req != NULL );
383 /* Fehler liefern, wenn kein lokaler Client */
384 if( Client_Conn( Client ) <= NONE ) return IRC_WriteStrClient( Client, ERR_UNKNOWNCOMMAND_MSG, Client_ID( Client ), Req->command );
386 if(( Client_Type( Client ) == CLIENT_UNKNOWN ) && ( Req->argc == 1))
388 /* noch nicht registrierte unbekannte Verbindung */
389 Log( LOG_DEBUG, "Connection %d: got PASS command ...", Client_Conn( Client ));
391 /* Passwort speichern */
392 Client_SetPassword( Client, Req->argv[0] );
394 Client_SetType( Client, CLIENT_GOTPASS );
397 else if((( Client_Type( Client ) == CLIENT_UNKNOWN ) || ( Client_Type( Client ) == CLIENT_UNKNOWNSERVER )) && (( Req->argc == 3 ) || ( Req->argc == 4 )))
399 /* noch nicht registrierte Server-Verbindung */
400 Log( LOG_DEBUG, "Connection %d: got PASS command (new server link) ...", Client_Conn( Client ));
402 /* Passwort speichern */
403 Client_SetPassword( Client, Req->argv[0] );
405 Client_SetType( Client, CLIENT_GOTPASSSERVER );
408 else if(( Client_Type( Client ) == CLIENT_UNKNOWN ) || ( Client_Type( Client ) == CLIENT_UNKNOWNSERVER ))
410 /* Falsche Anzahl Parameter? */
411 return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
413 else return IRC_WriteStrClient( Client, ERR_ALREADYREGISTRED_MSG, Client_ID( Client ));
417 GLOBAL BOOLEAN IRC_SERVER( CLIENT *Client, REQUEST *Req )
419 CHAR str[LINE_LEN], *ptr;
426 assert( Client != NULL );
427 assert( Req != NULL );
429 /* Fehler liefern, wenn kein lokaler Client */
430 if( Client_Conn( Client ) <= NONE ) return IRC_WriteStrClient( Client, ERR_UNKNOWNCOMMAND_MSG, Client_ID( Client ), Req->command );
432 if( Client_Type( Client ) == CLIENT_GOTPASSSERVER )
434 /* Verbindung soll als Server-Server-Verbindung registriert werden */
435 Log( LOG_DEBUG, "Connection %d: got SERVER command (new server link) ...", Client_Conn( Client ));
437 /* Falsche Anzahl Parameter? */
438 if(( Req->argc != 2 ) && ( Req->argc != 3 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
440 /* Ist dieser Server bei uns konfiguriert? */
441 for( i = 0; i < Conf_Server_Count; i++ ) if( strcasecmp( Req->argv[0], Conf_Server[i].name ) == 0 ) break;
442 if( i >= Conf_Server_Count )
444 /* Server ist nicht konfiguriert! */
445 Log( LOG_ERR, "Connection %d: Server \"%s\" not configured here!", Client_Conn( Client ), Req->argv[0] );
446 Conn_Close( Client_Conn( Client ), NULL, "Server not configured here", TRUE );
449 if( strcmp( Client_Password( Client ), Conf_Server[i].pwd ) != 0 )
451 /* Falsches Passwort */
452 Log( LOG_ERR, "Connection %d: Bad password for server \"%s\"!", Client_Conn( Client ), Req->argv[0] );
453 Conn_Close( Client_Conn( Client ), NULL, "Bad password", TRUE );
457 /* Ist ein Server mit dieser ID bereits registriert? */
458 if( ! Client_CheckID( Client, Req->argv[0] )) return DISCONNECTED;
460 /* Server-Strukturen fuellen ;-) */
461 Client_SetID( Client, Req->argv[0] );
462 Client_SetHops( Client, 1 );
463 Client_SetInfo( Client, Req->argv[Req->argc - 1] );
465 /* Meldet sich der Server bei uns an? */
468 /* Unseren SERVER- und PASS-Befehl senden */
470 if( ! IRC_WriteStrClient( Client, "PASS %s "PASSSERVERADD, Conf_Server[i].pwd )) ok = FALSE;
471 else ok = IRC_WriteStrClient( Client, "SERVER %s 1 :%s", Conf_ServerName, Conf_ServerInfo );
474 Conn_Close( Client_Conn( Client ), "Unexpected server behavior!", NULL, FALSE );
477 Client_SetIntroducer( Client, Client );
478 Client_SetToken( Client, 1 );
480 else Client_SetToken( Client, atoi( Req->argv[1] ));
482 Log( LOG_NOTICE, "Server \"%s\" registered (connection %d, 1 hop - direct link).", Client_ID( Client ), Client_Conn( Client ));
484 Client_SetType( Client, CLIENT_SERVER );
486 /* Alle bisherigen Server dem neuen Server bekannt machen,
487 * die bisherigen Server ueber den neuen informierenn */
491 if(( Client_Type( c ) == CLIENT_SERVER ) && ( c != Client ) && ( c != Client_ThisServer( )))
493 if( Client_Conn( c ) > NONE )
495 /* Dem gefundenen Server gleich den neuen
496 * Server bekannt machen */
497 if( ! IRC_WriteStrClient( c, "SERVER %s %d %d :%s", Client_ID( Client ), Client_Hops( Client ) + 1, Client_MyToken( Client ), Client_Info( Client ))) return DISCONNECTED;
500 /* Den neuen Server ueber den alten informieren */
501 if( ! IRC_WriteStrClientPrefix( Client, Client_Introducer( c ), "SERVER %s %d %d :%s", Client_ID( c ), Client_Hops( c ) + 1, Client_MyToken( c ), Client_Info( c ))) return DISCONNECTED;
503 c = Client_Next( c );
506 /* alle User dem neuen Server bekannt machen */
510 if( Client_Type( c ) == CLIENT_USER )
512 /* User an neuen Server melden */
513 if( ! IRC_WriteStrClient( Client, "NICK %s %d %s %s %d +%s :%s", Client_ID( c ), Client_Hops( c ) + 1, Client_User( c ), Client_Hostname( c ), Client_MyToken( Client_Introducer( c )), Client_Modes( c ), Client_Info( c ))) return DISCONNECTED;
515 c = Client_Next( c );
518 /* Channels dem neuen Server bekannt machen */
519 chan = Channel_First( );
522 sprintf( str, "NJOIN %s :", Channel_Name( chan ));
524 /* alle Member suchen */
525 cl2chan = Channel_FirstMember( chan );
528 if( str[strlen( str ) - 1] != ':' ) strcat( str, "," );
529 strcat( str, Client_ID( Channel_GetClient( cl2chan )));
531 if( strlen( str ) > ( LINE_LEN - CLIENT_NICK_LEN - 4 ))
534 if( ! IRC_WriteStrClient( Client, str )) return DISCONNECTED;
535 sprintf( str, "NJOIN %s :", Channel_Name( chan ));
538 cl2chan = Channel_NextMember( chan, cl2chan );
542 if( str[strlen( str ) - 1] != ':')
544 /* Ja; Also senden ... */
545 if( ! IRC_WriteStrClient( Client, str )) return DISCONNECTED;
548 /* naechsten Channel suchen */
549 chan = Channel_Next( chan );
554 else if( Client_Type( Client ) == CLIENT_SERVER )
556 /* Neuer Server wird im Netz angekuendigt */
558 /* Falsche Anzahl Parameter? */
559 if( Req->argc != 4 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
561 /* Ist ein Server mit dieser ID bereits registriert? */
562 if( ! Client_CheckID( Client, Req->argv[0] )) return DISCONNECTED;
564 /* Ueberfluessige Hostnamen aus Info-Text entfernen */
565 ptr = strchr( Req->argv[3] + 2, '[' );
566 if( ! ptr ) ptr = Req->argv[3];
568 from = Client_GetFromID( Req->prefix );
571 /* Hm, Server, der diesen einfuehrt, ist nicht bekannt!? */
572 Log( LOG_ALERT, "Unknown ID in prefix of SERVER: \"%s\"! (on connection %d)", Req->prefix, Client_Conn( Client ));
573 Conn_Close( Client_Conn( Client ), NULL, "Unknown ID in prefix of SERVER", TRUE );
577 /* Neue Client-Struktur anlegen */
578 c = Client_NewRemoteServer( Client, Req->argv[0], atoi( Req->argv[1] ), atoi( Req->argv[2] ), ptr, TRUE );
581 /* Neue Client-Struktur konnte nicht angelegt werden */
582 Log( LOG_ALERT, "Can't create client structure for server! (on connection %d)", Client_Conn( Client ));
583 Conn_Close( Client_Conn( Client ), NULL, "Can't allocate client structure for remote server", TRUE );
587 /* Log-Meldung zusammenbauen und ausgeben */
588 if(( Client_Hops( c ) > 1 ) && ( Req->prefix[0] )) sprintf( str, "connected to %s, ", Client_ID( from ));
589 else strcpy( str, "" );
590 Log( LOG_NOTICE, "Server \"%s\" registered (via %s, %s%d hop%s).", Client_ID( c ), Client_ID( Client ), str, Client_Hops( c ), Client_Hops( c ) > 1 ? "s": "" );
592 /* Andere Server informieren */
593 IRC_WriteStrServersPrefix( Client, from, "SERVER %s %d %d :%s", Client_ID( c ), Client_Hops( c ) + 1, Client_MyToken( c ), Client_Info( c ));
597 else return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
601 GLOBAL BOOLEAN IRC_NJOIN( CLIENT *Client, REQUEST *Req )
606 assert( Client != NULL );
607 assert( Req != NULL );
609 if( Client_Type( Client ) != CLIENT_SERVER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTEREDSERVER_MSG, Client_ID( Client ));
611 /* Falsche Anzahl Parameter? */
612 if( Req->argc != 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
615 ptr = strtok( Req->argv[1], "," );
618 /* Prefixe abschneiden */
619 while(( *ptr == '@' ) || ( *ptr == '+' )) ptr++;
621 c = Client_GetFromID( ptr );
622 if( c ) Channel_Join( c, chan );
623 else Log( LOG_ERR, "Got NJOIN for unknown nick \"%s\" for channel \"%s\"!", ptr, chan );
625 /* naechsten Nick suchen */
626 ptr = strtok( NULL, "," );
633 GLOBAL BOOLEAN IRC_NICK( CLIENT *Client, REQUEST *Req )
635 CLIENT *intr_c, *target, *c;
638 assert( Client != NULL );
639 assert( Req != NULL );
641 /* Zumindest BitchX sendet NICK-USER in der falschen Reihenfolge. */
643 if( Client_Type( Client ) == CLIENT_UNKNOWN || Client_Type( Client ) == CLIENT_GOTPASS || Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_GOTUSER || Client_Type( Client ) == CLIENT_USER || ( Client_Type( Client ) == CLIENT_SERVER && Req->argc == 1 ))
645 if( Client_Type( Client ) == CLIENT_UNKNOWN || Client_Type( Client ) == CLIENT_GOTPASS || Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_USER || ( Client_Type( Client ) == CLIENT_SERVER && Req->argc == 1 ))
648 /* User-Registrierung bzw. Nick-Aenderung */
650 /* Falsche Anzahl Parameter? */
651 if( Req->argc != 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
653 /* "Ziel-Client" ermitteln */
654 if( Client_Type( Client ) == CLIENT_SERVER )
656 target = Client_GetFromID( Req->prefix );
657 if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[0] );
661 /* Ist der Client "restricted"? */
662 if( Client_HasMode( Client, 'r' )) return IRC_WriteStrClient( Client, ERR_RESTRICTED_MSG, Client_ID( Client ));
666 /* Wenn der Client zu seinem eigenen Nick wechseln will, so machen
667 * wir nichts. So macht es das Original und mind. Snak hat probleme,
668 * wenn wir es nicht so machen. Ob es so okay ist? Hm ... */
670 if( strcmp( Client_ID( target ), Req->argv[0] ) == 0 ) return CONNECTED;
673 /* pruefen, ob Nick bereits vergeben. Speziallfall: der Client
674 * will nur die Gross- und Kleinschreibung aendern. Das darf
675 * er natuerlich machen :-) */
676 if( strcasecmp( Client_ID( target ), Req->argv[0] ) != 0 )
678 if( ! Client_CheckNick( target, Req->argv[0] )) return CONNECTED;
681 if( Client_Type( Client ) == CLIENT_USER )
683 /* Nick-Aenderung: allen mitteilen! */
684 Log( LOG_INFO, "User \"%s\" changed nick: \"%s\" -> \"%s\".", Client_Mask( target ), Client_ID( target ), Req->argv[0] );
685 IRC_WriteStrClient( Client, "NICK :%s", Req->argv[0] );
686 IRC_WriteStrServersPrefix( NULL, Client, "NICK :%s", Req->argv[0] );
688 else if( Client_Type( Client ) == CLIENT_SERVER )
690 /* Nick-Aenderung: allen mitteilen! */
691 Log( LOG_DEBUG, "User \"%s\" changed nick: \"%s\" -> \"%s\".", Client_Mask( target ), Client_ID( target ), Req->argv[0] );
692 IRC_WriteStrServersPrefix( Client, target, "NICK :%s", Req->argv[0] );
695 /* Client-Nick registrieren */
696 Client_SetID( target, Req->argv[0] );
698 if(( Client_Type( target ) != CLIENT_USER ) && ( Client_Type( target ) != CLIENT_SERVER ))
701 Log( LOG_DEBUG, "Connection %d: got NICK command ...", Client_Conn( Client ));
702 if( Client_Type( Client ) == CLIENT_GOTUSER ) return Hello_User( Client );
703 else Client_SetType( Client, CLIENT_GOTNICK );
707 else if( Client_Type( Client ) == CLIENT_SERVER )
709 /* Server fuehrt neuen Client ein */
711 /* Falsche Anzahl Parameter? */
712 if( Req->argc != 7 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
714 /* Nick ueberpruefen */
715 c = Client_GetFromID( Req->argv[0] );
718 /* Der neue Nick ist auf diesem Server bereits registriert:
719 * sowohl der neue, als auch der alte Client muessen nun
720 * disconnectiert werden. */
721 Log( LOG_ERR, "Server %s introduces already registered nick \"%s\"!", Client_ID( Client ), Req->argv[0] );
722 Kill_Nick( Req->argv[0] );
726 /* Server, zu dem der Client connectiert ist, suchen */
727 intr_c = Client_GetFromToken( Client, atoi( Req->argv[4] ));
730 Log( LOG_ERR, "Server %s introduces nick \"%s\" on unknown server!?", Client_ID( Client ), Req->argv[0] );
731 Kill_Nick( Req->argv[0] );
735 /* Neue Client-Struktur anlegen */
736 c = Client_NewRemoteUser( intr_c, Req->argv[0], atoi( Req->argv[1] ), Req->argv[2], Req->argv[3], atoi( Req->argv[4] ), Req->argv[5] + 1, Req->argv[6], TRUE );
739 /* Eine neue Client-Struktur konnte nicht angelegt werden.
740 * Der Client muss disconnectiert werden, damit der Netz-
741 * status konsistent bleibt. */
742 Log( LOG_ALERT, "Can't create client structure! (on connection %d)", Client_Conn( Client ));
743 Kill_Nick( Req->argv[0] );
747 modes = Client_Modes( c );
748 if( *modes ) Log( LOG_DEBUG, "User \"%s\" (+%s) registered (via %s, on %s, %d hop%s).", Client_Mask( c ), modes, Client_ID( Client ), Client_ID( intr_c ), Client_Hops( c ), Client_Hops( c ) > 1 ? "s": "" );
749 else Log( LOG_DEBUG, "User \"%s\" registered (via %s, on %s, %d hop%s).", Client_Mask( c ), Client_ID( Client ), Client_ID( intr_c ), Client_Hops( c ), Client_Hops( c ) > 1 ? "s": "" );
751 /* Andere Server, ausser dem Introducer, informieren */
752 IRC_WriteStrServersPrefix( Client, Client, "NICK %s %d %s %s %d %s :%s", Req->argv[0], atoi( Req->argv[1] ) + 1, Req->argv[2], Req->argv[3], Client_MyToken( intr_c ), Req->argv[5], Req->argv[6] );
756 else return IRC_WriteStrClient( Client, ERR_ALREADYREGISTRED_MSG, Client_ID( Client ));
760 GLOBAL BOOLEAN IRC_USER( CLIENT *Client, REQUEST *Req )
762 assert( Client != NULL );
763 assert( Req != NULL );
766 if( Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_GOTPASS || Client_Type( Client ) == CLIENT_UNKNOWN )
768 if( Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_GOTPASS )
771 /* Falsche Anzahl Parameter? */
772 if( Req->argc != 4 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
774 Client_SetUser( Client, Req->argv[0], FALSE );
775 Client_SetInfo( Client, Req->argv[3] );
777 Log( LOG_DEBUG, "Connection %d: got USER command ...", Client_Conn( Client ));
778 if( Client_Type( Client ) == CLIENT_GOTNICK ) return Hello_User( Client );
779 else Client_SetType( Client, CLIENT_GOTUSER );
782 else if( Client_Type( Client ) == CLIENT_USER || Client_Type( Client ) == CLIENT_SERVER || Client_Type( Client ) == CLIENT_SERVICE )
784 return IRC_WriteStrClient( Client, ERR_ALREADYREGISTRED_MSG, Client_ID( Client ));
786 else return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
790 GLOBAL BOOLEAN IRC_QUIT( CLIENT *Client, REQUEST *Req )
794 assert( Client != NULL );
795 assert( Req != NULL );
797 if(( Client_Type( Client ) == CLIENT_USER ) || ( Client_Type( Client ) == CLIENT_SERVICE ))
801 /* Falsche Anzahl Parameter? */
802 if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
804 if( Req->argc == 0 ) Conn_Close( Client_Conn( Client ), "Got QUIT command.", NULL, TRUE );
805 else Conn_Close( Client_Conn( Client ), "Got QUIT command.", Req->argv[0], TRUE );
809 else if ( Client_Type( Client ) == CLIENT_SERVER )
813 /* Falsche Anzahl Parameter? */
814 if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
816 target = Client_Search( Req->prefix );
819 Log( LOG_ERR, "Got QUIT from %s for unknown client!?", Client_ID( Client ));
823 if( Req->argc == 0 ) Client_Destroy( target, "Got QUIT command.", NULL );
824 else Client_Destroy( target, "Got QUIT command.", Req->argv[0] );
828 else return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
832 GLOBAL BOOLEAN IRC_SQUIT( CLIENT *Client, REQUEST *Req )
836 assert( Client != NULL );
837 assert( Req != NULL );
839 /* SQUIT ist nur fuer Server erlaubt */
840 if( Client_Type( Client ) != CLIENT_SERVER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
842 /* Falsche Anzahl Parameter? */
843 if( Req->argc != 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
845 target = Client_GetFromID( Req->argv[0] );
848 Log( LOG_ERR, "Got SQUIT from %s for unknown server \%s\"!?", Client_ID( Client ), Req->argv[0] );
852 if( target == Client ) Log( LOG_DEBUG, "Got SQUIT from %s: %s", Client_ID( Client ), Req->argv[1] );
853 else Log( LOG_DEBUG, "Got SQUIT from %s for %s: %s", Client_ID( Client ), Client_ID( target ), Req->argv[1] );
855 /* SQUIT an alle Server weiterleiten */
856 IRC_WriteStrServers( Client, "SQUIT %s :%s", Req->argv[0], Req->argv[1] );
858 if( Client_Conn( target ) > NONE )
860 if( Req->argv[1][0] ) Conn_Close( Client_Conn( target ), "Got SQUIT command.", Req->argv[1], TRUE );
861 else Conn_Close( Client_Conn( target ), "Got SQUIT command.", NULL, TRUE );
866 Client_Destroy( target, "Got SQUIT command.", Req->argv[1] );
872 GLOBAL BOOLEAN IRC_PING( CLIENT *Client, REQUEST *Req )
874 assert( Client != NULL );
875 assert( Req != NULL );
877 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
879 /* Falsche Anzahl Parameter? */
880 if( Req->argc < 1 ) return IRC_WriteStrClient( Client, ERR_NOORIGIN_MSG, Client_ID( Client ));
881 if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
883 Log( LOG_DEBUG, "Connection %d: got PING, sending PONG ...", Client_Conn( Client ));
884 return IRC_WriteStrClient( Client, "PONG %s :%s", Client_ID( Client_ThisServer( )), Client_ID( Client ));
888 GLOBAL BOOLEAN IRC_PONG( CLIENT *Client, REQUEST *Req )
890 assert( Client != NULL );
891 assert( Req != NULL );
893 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
895 /* Falsche Anzahl Parameter? */
896 if( Req->argc < 1 ) return IRC_WriteStrClient( Client, ERR_NOORIGIN_MSG, Client_ID( Client ));
897 if( Req->argc > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
899 /* Der Connection-Timestamp wurde schon beim Lesen aus dem Socket
900 * aktualisiert, daher muss das hier nicht mehr gemacht werden. */
902 Log( LOG_DEBUG, "Connection %d: received PONG.", Client_Conn( Client ));
907 GLOBAL BOOLEAN IRC_MOTD( CLIENT *Client, REQUEST *Req )
909 assert( Client != NULL );
910 assert( Req != NULL );
912 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
914 /* Falsche Anzahl Parameter? */
915 if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
917 return Show_MOTD( Client );
921 GLOBAL BOOLEAN IRC_PRIVMSG( CLIENT *Client, REQUEST *Req )
926 assert( Client != NULL );
927 assert( Req != NULL );
929 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
931 /* Falsche Anzahl Parameter? */
932 if( Req->argc == 0 ) return IRC_WriteStrClient( Client, ERR_NORECIPIENT_MSG, Client_ID( Client ), Req->command );
933 if( Req->argc == 1 ) return IRC_WriteStrClient( Client, ERR_NOTEXTTOSEND_MSG, Client_ID( Client ));
934 if( Req->argc > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
936 if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_GetFromID( Req->prefix );
938 if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
940 to = Client_Search( Req->argv[0] );
943 /* Okay, Ziel ist ein User */
944 if( Client_Conn( from ) > NONE ) Conn_UpdateIdle( Client_Conn( from ));
945 return IRC_WriteStrClientPrefix( to, from, "PRIVMSG %s :%s", Client_ID( to ), Req->argv[1] );
948 chan = Channel_Search( Req->argv[0] );
951 /* Okay, Ziel ist ein Channel */
952 if( Client_Conn( from ) > NONE ) Conn_UpdateIdle( Client_Conn( from ));
953 return IRC_WriteStrChannelPrefix( Client, chan, from, TRUE, "PRIVMSG %s :%s", Req->argv[0], Req->argv[1] );
956 return IRC_WriteStrClient( from, ERR_NOSUCHNICK_MSG, Client_ID( from ), Req->argv[0] );
960 GLOBAL BOOLEAN IRC_NOTICE( CLIENT *Client, REQUEST *Req )
964 assert( Client != NULL );
965 assert( Req != NULL );
967 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
969 /* Falsche Anzahl Parameter? */
970 if( Req->argc != 2 ) return CONNECTED;
972 if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_GetFromID( Req->prefix );
974 if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
976 to = Client_Search( Req->argv[0] );
979 /* Okay, Ziel ist ein User */
980 return IRC_WriteStrClientPrefix( to, from, "NOTICE %s :%s", Client_ID( to ), Req->argv[1] );
982 else return CONNECTED;
986 GLOBAL BOOLEAN IRC_MODE( CLIENT *Client, REQUEST *Req )
988 CHAR x[2], new_modes[CLIENT_MODE_LEN], *ptr;
992 assert( Client != NULL );
993 assert( Req != NULL );
995 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
997 /* Falsche Anzahl Parameter? */
998 if(( Req->argc > 2 ) || ( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
1000 /* "Ziel-Client" suchen */
1001 target = Client_Search( Req->argv[0] );
1003 /* Wer ist der Anfragende? */
1004 if( Client_Type( Client ) == CLIENT_USER )
1006 /* User: MODE ist nur fuer sich selber zulaessig */
1007 if( target != Client ) return IRC_WriteStrClient( Client, ERR_USERSDONTMATCH_MSG, Client_ID( Client ));
1011 /* Server: gibt es den Client ueberhaupt? */
1012 if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[0] );
1015 /* Werden die Modes erfragt? */
1016 if( Req->argc == 1 ) return IRC_WriteStrClient( Client, RPL_UMODEIS_MSG, Client_ID( Client ), Client_Modes( Client ));
1020 /* Sollen Modes gesetzt oder geloescht werden? */
1021 if( *ptr == '+' ) set = TRUE;
1022 else if( *ptr == '-' ) set = FALSE;
1023 else return IRC_WriteStrClient( Client, ERR_UMODEUNKNOWNFLAG_MSG, Client_ID( Client ));
1025 /* Reply-String mit Aenderungen vorbereiten */
1026 if( set ) strcpy( new_modes, "+" );
1027 else strcpy( new_modes, "-" );
1035 if( Client_Type( Client ) == CLIENT_SERVER )
1049 /* restricted (kann nur gesetzt werden) */
1050 if( set ) x[0] = 'r';
1051 else ok = IRC_WriteStrClient( target, ERR_RESTRICTED_MSG, Client_ID( target ));
1054 /* operator (kann nur geloescht werden) */
1057 Client_SetOperByMe( target, FALSE );
1060 else ok = IRC_WriteStrClient( target, ERR_UMODEUNKNOWNFLAG_MSG, Client_ID( target ));
1063 ok = IRC_WriteStrClient( target, ERR_UMODEUNKNOWNFLAG_MSG, Client_ID( target ));
1070 if( ! x[0] ) continue;
1072 /* Okay, gueltigen Mode gefunden */
1075 /* Mode setzen. Wenn der Client ihn noch nicht hatte: merken */
1076 if( Client_ModeAdd( target, x[0] )) strcat( new_modes, x );
1080 /* Modes geloescht. Wenn der Client ihn hatte: merken */
1081 if( Client_ModeDel( target, x[0] )) strcat( new_modes, x );
1085 /* Geanderte Modes? */
1088 if( Client_Type( Client ) == CLIENT_SERVER )
1090 /* Modes an andere Server forwarden */
1091 IRC_WriteStrServersPrefix( Client, Client, "MODE %s :%s", Client_ID( target ), new_modes );
1095 /* Bestaetigung an Client schicken & andere Server informieren */
1096 ok = IRC_WriteStrClient( Client, "MODE %s :%s", Client_ID( target ), new_modes );
1097 IRC_WriteStrServers( Client, "MODE %s :%s", Client_ID( target ), new_modes );
1099 Log( LOG_DEBUG, "User \"%s\": Mode change, now \"%s\".", Client_Mask( target ), Client_Modes( target ));
1105 GLOBAL BOOLEAN IRC_OPER( CLIENT *Client, REQUEST *Req )
1109 assert( Client != NULL );
1110 assert( Req != NULL );
1112 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
1114 /* Falsche Anzahl Parameter? */
1115 if( Req->argc != 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
1117 /* Operator suchen */
1118 for( i = 0; i < Conf_Oper_Count; i++)
1120 if( Conf_Oper[i].name[0] && Conf_Oper[i].pwd[0] && ( strcmp( Conf_Oper[i].name, Req->argv[0] ) == 0 )) break;
1122 if( i >= Conf_Oper_Count )
1124 Log( LOG_WARNING, "Got invalid OPER from \"%s\": Name \"%s\" not configured!", Client_Mask( Client ), Req->argv[0] );
1125 return IRC_WriteStrClient( Client, ERR_PASSWDMISMATCH_MSG, Client_ID( Client ));
1128 /* Stimmt das Passwort? */
1129 if( strcmp( Conf_Oper[i].pwd, Req->argv[1] ) != 0 )
1131 Log( LOG_WARNING, "Got invalid OPER from \"%s\": Bad password for \"%s\"!", Client_Mask( Client ), Conf_Oper[i].name );
1132 return IRC_WriteStrClient( Client, ERR_PASSWDMISMATCH_MSG, Client_ID( Client ));
1135 if( ! Client_HasMode( Client, 'o' ))
1137 /* noch kein o-Mode gesetzt */
1138 Client_ModeAdd( Client, 'o' );
1139 if( ! IRC_WriteStrClient( Client, "MODE %s :+o", Client_ID( Client ))) return DISCONNECTED;
1140 IRC_WriteStrServersPrefix( NULL, Client, "MODE %s :+o", Client_ID( Client ));
1143 if( ! Client_OperByMe( Client )) Log( LOG_NOTICE, "Got valid OPER from \"%s\", user is an IRC operator now.", Client_Mask( Client ));
1145 Client_SetOperByMe( Client, TRUE );
1146 return IRC_WriteStrClient( Client, RPL_YOUREOPER_MSG, Client_ID( Client ));
1150 GLOBAL BOOLEAN IRC_DIE( CLIENT *Client, REQUEST *Req )
1152 assert( Client != NULL );
1153 assert( Req != NULL );
1155 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
1157 /* Falsche Anzahl Parameter? */
1158 if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
1160 if(( ! Client_HasMode( Client, 'o' )) || ( ! Client_OperByMe( Client ))) return IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client ));
1162 Log( LOG_NOTICE, "Got DIE command from \"%s\", going down!", Client_Mask( Client ));
1168 GLOBAL BOOLEAN IRC_RESTART( CLIENT *Client, REQUEST *Req )
1170 assert( Client != NULL );
1171 assert( Req != NULL );
1173 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
1175 /* Falsche Anzahl Parameter? */
1176 if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
1178 if(( ! Client_HasMode( Client, 'o' )) || ( ! Client_OperByMe( Client ))) return IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client ));
1180 Log( LOG_NOTICE, "Got RESTART command from \"%s\", going down!", Client_Mask( Client ));
1181 NGIRCd_Restart = TRUE;
1186 GLOBAL BOOLEAN IRC_NAMES( CLIENT *Client, REQUEST *Req )
1188 CHAR rpl[COMMAND_LEN];
1191 assert( Client != NULL );
1192 assert( Req != NULL );
1194 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
1196 /* Falsche Anzahl Parameter? */
1197 if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
1199 /* Noch alle User ausgeben, die in keinem Channel sind */
1201 c = Client_First( );
1204 if( Client_Type( c ) == CLIENT_USER )
1206 /* Okay, das ist ein User */
1207 strcat( rpl, Client_ID( c ));
1211 /* Antwort zu lang? Splitten. */
1212 if( strlen( rpl ) > 480 )
1214 if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0';
1215 if( ! IRC_WriteStrClient( Client, RPL_NAMREPLY_MSG, Client_ID( Client ), "*", "*", rpl )) return DISCONNECTED;
1219 c = Client_Next( c );
1223 /* es wurden User gefunden */
1224 if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0';
1225 if( ! IRC_WriteStrClient( Client, RPL_NAMREPLY_MSG, Client_ID( Client ), "*", "*", rpl )) return DISCONNECTED;
1227 return IRC_WriteStrClient( Client, RPL_ENDOFNAMES_MSG, Client_ID( Client ), "*" );
1231 GLOBAL BOOLEAN IRC_ISON( CLIENT *Client, REQUEST *Req )
1233 CHAR rpl[COMMAND_LEN];
1238 assert( Client != NULL );
1239 assert( Req != NULL );
1241 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
1243 /* Falsche Anzahl Parameter? */
1244 if(( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
1246 strcpy( rpl, RPL_ISON_MSG );
1247 for( i = 0; i < Req->argc; i++ )
1249 ptr = strtok( Req->argv[i], " " );
1253 c = Client_GetFromID( ptr );
1254 if( c && ( Client_Type( c ) == CLIENT_USER ))
1256 /* Dieser Nick ist "online" */
1260 ptr = strtok( NULL, " " );
1263 if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0';
1265 return IRC_WriteStrClient( Client, rpl, Client_ID( Client ) );
1269 GLOBAL BOOLEAN IRC_WHOIS( CLIENT *Client, REQUEST *Req )
1271 CLIENT *from, *target, *c;
1274 assert( Client != NULL );
1275 assert( Req != NULL );
1277 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
1279 /* Falsche Anzahl Parameter? */
1280 if(( Req->argc < 1 ) || ( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
1283 c = Client_GetFromID( Req->argv[Req->argc - 1] );
1284 if(( ! c ) || ( Client_Type( c ) != CLIENT_USER )) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[Req->argc - 1] );
1286 /* Empfaenger des WHOIS suchen */
1287 if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_GetFromID( Req->prefix );
1289 if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
1291 /* Forwarden an anderen Server? */
1294 /* angegebenen Ziel-Server suchen */
1295 target = Client_GetFromID( Req->argv[1] );
1296 if( ! target ) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[1] );
1300 else if( Client_Conn( c ) == NONE )
1302 /* Client ist nicht von uns. Ziel-Server suchen */
1309 if( target && ( Client_NextHop( target ) != Client_ThisServer( )) && ( Client_Type( Client_NextHop( target )) == CLIENT_SERVER )) return IRC_WriteStrClientPrefix( target, from, "WHOIS %s :%s", Req->argv[0], ptr );
1311 /* Nick, User und Name */
1312 if( ! IRC_WriteStrClient( from, RPL_WHOISUSER_MSG, Client_ID( from ), Client_ID( c ), Client_User( c ), Client_Hostname( c ), Client_Info( c ))) return DISCONNECTED;
1315 if( ! IRC_WriteStrClient( from, RPL_WHOISSERVER_MSG, Client_ID( from ), Client_ID( c ), Client_ID( Client_Introducer( c )), Client_Info( Client_Introducer( c )))) return DISCONNECTED;
1318 if( Client_HasMode( c, 'o' ))
1320 if( ! IRC_WriteStrClient( from, RPL_WHOISOPERATOR_MSG, Client_ID( from ), Client_ID( c ))) return DISCONNECTED;
1323 /* Idle (nur lokale Clients) */
1324 if( Client_Conn( c ) > NONE )
1326 if( ! IRC_WriteStrClient( from, RPL_WHOISIDLE_MSG, Client_ID( from ), Client_ID( c ), Conn_GetIdle( Client_Conn ( c )))) return DISCONNECTED;
1330 return IRC_WriteStrClient( from, RPL_ENDOFWHOIS_MSG, Client_ID( from ), Client_ID( c ));
1334 GLOBAL BOOLEAN IRC_USERHOST( CLIENT *Client, REQUEST *Req )
1336 CHAR rpl[COMMAND_LEN];
1340 assert( Client != NULL );
1341 assert( Req != NULL );
1343 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
1345 /* Falsche Anzahl Parameter? */
1346 if(( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
1348 if( Req->argc > 5 ) max = 5;
1349 else max = Req->argc;
1351 strcpy( rpl, RPL_USERHOST_MSG );
1352 for( i = 0; i < max; i++ )
1354 c = Client_GetFromID( Req->argv[i] );
1355 if( c && ( Client_Type( c ) == CLIENT_USER ))
1357 /* Dieser Nick ist "online" */
1358 strcat( rpl, Client_ID( c ));
1359 if( Client_HasMode( c, 'o' )) strcat( rpl, "*" );
1361 if( Client_HasMode( c, 'a' )) strcat( rpl, "-" );
1362 else strcat( rpl, "+" );
1363 strcat( rpl, Client_User( c ));
1365 strcat( rpl, Client_Hostname( c ));
1369 if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0';
1371 return IRC_WriteStrClient( Client, rpl, Client_ID( Client ) );
1372 } /* IRC_USERHOST */
1375 GLOBAL BOOLEAN IRC_ERROR( CLIENT *Client, REQUEST *Req )
1377 assert( Client != NULL );
1378 assert( Req != NULL );
1380 if( Req->argc < 1 ) Log( LOG_NOTICE, "Got ERROR from \"%s\"!", Client_Mask( Client ));
1381 else Log( LOG_NOTICE, "Got ERROR from \"%s\": %s!", Client_Mask( Client ), Req->argv[0] );
1387 GLOBAL BOOLEAN IRC_LUSERS( CLIENT *Client, REQUEST *Req )
1389 CLIENT *target, *from;
1392 assert( Client != NULL );
1393 assert( Req != NULL );
1395 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
1397 /* Falsche Anzahl Parameter? */
1398 if(( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
1400 /* Absender ermitteln */
1401 if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_GetFromID( Req->prefix );
1403 if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
1405 /* An anderen Server forwarden? */
1406 if( Req->argc == 2 )
1408 target = Client_GetFromID( Req->argv[1] );
1409 if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[1] );
1410 else if( target != Client_ThisServer( )) return IRC_WriteStrClientPrefix( target, from, "LUSERS %s %s", Req->argv[0], Req->argv[1] );
1413 /* Wer ist der Absender? */
1414 if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_GetFromID( Req->prefix );
1415 else target = Client;
1416 if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
1418 /* Users, Services und Serevr im Netz */
1419 if( ! IRC_WriteStrClient( target, RPL_LUSERCLIENT_MSG, Client_ID( target ), Client_UserCount( ), Client_ServiceCount( ), Client_ServerCount( ))) return DISCONNECTED;
1421 /* IRC-Operatoren im Netz */
1422 cnt = Client_OperCount( );
1425 if( ! IRC_WriteStrClient( target, RPL_LUSEROP_MSG, Client_ID( target ), cnt )) return DISCONNECTED;
1428 /* Unbekannt Verbindungen */
1429 cnt = Client_UnknownCount( );
1432 if( ! IRC_WriteStrClient( target, RPL_LUSERUNKNOWN_MSG, Client_ID( target ), cnt )) return DISCONNECTED;
1435 /* Channels im Netz */
1436 if( ! IRC_WriteStrClient( target, RPL_LUSERCHANNELS_MSG, Client_ID( target ), Channel_Count( ))) return DISCONNECTED;
1438 /* Channels im Netz */
1439 if( ! IRC_WriteStrClient( target, RPL_LUSERME_MSG, Client_ID( target ), Client_MyUserCount( ), Client_MyServiceCount( ), Client_MyServerCount( ))) return DISCONNECTED;
1445 GLOBAL BOOLEAN IRC_LINKS( CLIENT *Client, REQUEST *Req )
1447 CLIENT *target, *from, *c;
1450 assert( Client != NULL );
1451 assert( Req != NULL );
1453 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
1455 /* Falsche Anzahl Parameter? */
1456 if(( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
1458 /* Server-Mask ermitteln */
1459 if( Req->argc > 0 ) mask = Req->argv[Req->argc - 1];
1462 /* Absender ermitteln */
1463 if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_GetFromID( Req->prefix );
1465 if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
1467 /* An anderen Server forwarden? */
1468 if( Req->argc == 2 )
1470 target = Client_GetFromID( Req->argv[0] );
1471 if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[0] );
1472 else if( target != Client_ThisServer( )) return IRC_WriteStrClientPrefix( target, from, "LINKS %s %s", Req->argv[0], Req->argv[1] );
1475 /* Wer ist der Absender? */
1476 if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_GetFromID( Req->prefix );
1477 else target = Client;
1478 if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
1480 c = Client_First( );
1483 if( Client_Type( c ) == CLIENT_SERVER )
1485 if( ! IRC_WriteStrClient( target, RPL_LINKS_MSG, Client_ID( target ), Client_ID( c ), Client_ID( Client_Introducer( c )), Client_Hops( c ), Client_Info( c ))) return DISCONNECTED;
1487 c = Client_Next( c );
1490 return IRC_WriteStrClient( target, RPL_ENDOFLINKS_MSG, Client_ID( target ), mask );
1494 GLOBAL BOOLEAN IRC_JOIN( CLIENT *Client, REQUEST *Req )
1499 assert( Client != NULL );
1500 assert( Req != NULL );
1502 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
1504 /* Falsche Anzahl Parameter? */
1505 if(( Req->argc > 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
1507 /* Wer ist der Absender? */
1508 if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_GetFromID( Req->prefix );
1509 else target = Client;
1510 if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
1512 /* Channel-Namen durchgehen */
1513 chan = strtok( Req->argv[0], "," );
1516 if( Client_Type( Client ) == CLIENT_SERVER )
1518 /* Channel-Flags extrahieren */
1519 flags = strchr( chan, 0x7 );
1520 if( flags ) *flags++ = '\0';
1524 if( ! Channel_Join( target, chan ))
1526 /* naechsten Namen ermitteln */
1527 chan = strtok( NULL, "," );
1531 /* An andere Server weiterleiten */
1532 IRC_WriteStrServersPrefix( Client, target, "JOIN :%s", chan );
1533 IRC_WriteStrChannelPrefix( Client, Channel_Search( chan ), target, FALSE, "JOIN :%s", chan );
1535 if( Client_Type( Client ) == CLIENT_USER )
1537 /* an Client bestaetigen */
1538 IRC_WriteStrClientPrefix( Client, target, "JOIN :%s", chan );
1539 /* Topic an Client schicken */
1540 IRC_WriteStrClient( Client, RPL_TOPIC_MSG, Client_ID( Client ), chan, "What a wonderful channel!" );
1543 /* naechsten Namen ermitteln */
1544 chan = strtok( NULL, "," );
1550 GLOBAL BOOLEAN IRC_PART( CLIENT *Client, REQUEST *Req )
1555 assert( Client != NULL );
1556 assert( Req != NULL );
1558 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
1560 /* Falsche Anzahl Parameter? */
1561 if(( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
1563 /* Wer ist der Absender? */
1564 if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_GetFromID( Req->prefix );
1565 else target = Client;
1566 if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
1568 /* Channel-Namen durchgehen */
1569 chan = strtok( Req->argv[0], "," );
1572 if( ! Channel_Part( target, Client, chan, Req->argc > 1 ? Req->argv[1] : Client_ID( target )))
1574 /* naechsten Namen ermitteln */
1575 chan = strtok( NULL, "," );
1579 /* naechsten Namen ermitteln */
1580 chan = strtok( NULL, "," );
1586 LOCAL BOOLEAN Hello_User( CLIENT *Client )
1588 assert( Client != NULL );
1590 /* Passwort ueberpruefen */
1591 if( strcmp( Client_Password( Client ), Conf_ServerPwd ) != 0 )
1593 /* Falsches Passwort */
1594 Log( LOG_ERR, "User \"%s\" rejected (connection %d): Bad password!", Client_Mask( Client ), Client_Conn( Client ));
1595 Conn_Close( Client_Conn( Client ), NULL, "Bad password", TRUE );
1596 return DISCONNECTED;
1599 Log( LOG_NOTICE, "User \"%s\" registered (connection %d).", Client_Mask( Client ), Client_Conn( Client ));
1601 /* Andere Server informieren */
1602 IRC_WriteStrServers( NULL, "NICK %s 1 %s %s 1 +%s :%s", Client_ID( Client ), Client_User( Client ), Client_Hostname( Client ), Client_Modes( Client ), Client_Info( Client ));
1604 if( ! IRC_WriteStrClient( Client, RPL_WELCOME_MSG, Client_ID( Client ), Client_Mask( Client ))) return FALSE;
1605 if( ! IRC_WriteStrClient( Client, RPL_YOURHOST_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( )))) return FALSE;
1606 if( ! IRC_WriteStrClient( Client, RPL_CREATED_MSG, Client_ID( Client ), NGIRCd_StartStr )) return FALSE;
1607 if( ! IRC_WriteStrClient( Client, RPL_MYINFO_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( )))) return FALSE;
1609 Client_SetType( Client, CLIENT_USER );
1611 return Show_MOTD( Client );
1615 LOCAL BOOLEAN Show_MOTD( CLIENT *Client )
1621 assert( Client != NULL );
1623 fd = fopen( Conf_MotdFile, "r" );
1626 Log( LOG_WARNING, "Can't read MOTD file \"%s\": %s", Conf_MotdFile, strerror( errno ));
1627 return IRC_WriteStrClient( Client, ERR_NOMOTD_MSG, Client_ID( Client ) );
1630 IRC_WriteStrClient( Client, RPL_MOTDSTART_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( )));
1633 if( ! fgets( line, 126, fd )) break;
1634 if( line[strlen( line ) - 1] == '\n' ) line[strlen( line ) - 1] = '\0';
1635 if( ! IRC_WriteStrClient( Client, RPL_MOTD_MSG, Client_ID( Client ), line ))
1641 ok = IRC_WriteStrClient( Client, RPL_ENDOFMOTD_MSG, Client_ID( Client ) );
1649 LOCAL VOID Kill_Nick( CHAR *Nick )
1651 Log( LOG_ERR, "User(s) with nick \"%s\" will be disconnected!", Nick );
1653 Log( LOG_ALERT, "[Kill_Nick() not implemented - OOOPS!]" );