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 1.30 2002/01/06 15:21:29 alex Exp $
17 * Revision 1.30 2002/01/06 15:21:29 alex
18 * - Loglevel und Meldungen nochmals ueberarbeitet.
19 * - QUIT und SQUIT forwarden nun den Grund der Trennung,
20 * - WHOIS wird nun immer an den "Original-Server" weitergeleitet.
22 * Revision 1.29 2002/01/05 23:24:54 alex
23 * - WHOIS erweitert: Anfragen koennen an andere Server weitergeleitet werden.
24 * - Vorbereitungen fuer Ident-Abfragen bei neuen Client-Strukturen.
26 * Revision 1.28 2002/01/05 20:08:02 alex
27 * - Div. Aenderungen fuer die Server-Links (u.a. WHOIS, QUIT, NICK angepasst).
28 * - Neue Funktionen IRC_WriteStrServer() und IRC_WriteStrServerPrefix().
30 * Revision 1.27 2002/01/05 19:15:03 alex
31 * - Fehlerpruefung bei select() in der "Hauptschleife" korrigiert.
33 * Revision 1.26 2002/01/05 16:51:18 alex
34 * - das Passwort von Servern wird nun ueberprueft (PASS- und SERVER-Befehl).
36 * Revision 1.25 2002/01/05 00:48:33 alex
37 * - bei SQUIT wurde immer die Verbindung getrennt, auch bei Remote-Servern.
39 * Revision 1.24 2002/01/04 17:58:44 alex
40 * - IRC_WriteStrXXX()-Funktionen eingefuehrt, groessere Anpassungen daran.
41 * - neuer Befehl SQUIT, QUIT an Server-Links angepasst.
43 * Revision 1.23 2002/01/04 01:36:40 alex
44 * - Loglevel ein wenig angepasst.
46 * Revision 1.22 2002/01/04 01:21:47 alex
47 * - Client-Strukruren werden nur noch ueber Funktionen angesprochen.
48 * - Weitere Anpassungen und Erweiterungen der Server-Links.
50 * Revision 1.21 2002/01/03 02:26:51 alex
51 * - neue Befehle SERVER und NJOIN begonnen,
52 * - begonnen, diverse IRC-Befehle an Server-Links anzupassen.
54 * Revision 1.20 2002/01/02 12:46:41 alex
55 * - die Gross- und Kleinschreibung des Nicks kann mit NICK nun geaendert werden.
57 * Revision 1.19 2002/01/02 02:51:39 alex
58 * - Copyright-Texte angepasst.
59 * - neuer Befehl "ERROR".
61 * Revision 1.17 2001/12/31 15:33:13 alex
62 * - neuer Befehl NAMES, kleinere Bugfixes.
63 * - Bug bei PING behoben: war zu restriktiv implementiert :-)
65 * Revision 1.16 2001/12/31 02:18:51 alex
66 * - viele neue Befehle (WHOIS, ISON, OPER, DIE, RESTART),
67 * - neuen Header "defines.h" mit (fast) allen Konstanten.
68 * - Code Cleanups und viele "kleine" Aenderungen & Bugfixes.
70 * Revision 1.15 2001/12/30 19:26:11 alex
71 * - Unterstuetzung fuer die Konfigurationsdatei eingebaut.
73 * Revision 1.14 2001/12/30 11:42:00 alex
74 * - der Server meldet nun eine ordentliche "Start-Zeit".
76 * Revision 1.13 2001/12/29 03:10:06 alex
77 * - Neue Funktion IRC_MODE() implementiert, div. Aenderungen.
78 * - neue configure-Optione "--enable-strict-rfc".
80 * Revision 1.12 2001/12/27 19:17:26 alex
81 * - neue Befehle PRIVMSG, NOTICE, PING.
83 * Revision 1.11 2001/12/27 16:55:41 alex
84 * - neu: IRC_WriteStrRelated(), Aenderungen auch in IRC_WriteStrClient().
86 * Revision 1.10 2001/12/26 22:48:53 alex
87 * - MOTD-Datei ist nun konfigurierbar und wird gelesen.
89 * Revision 1.9 2001/12/26 14:45:37 alex
92 * Revision 1.8 2001/12/26 03:21:46 alex
93 * - PING/PONG-Befehle implementiert,
94 * - Meldungen ueberarbeitet: enthalten nun (fast) immer den Nick.
96 * Revision 1.7 2001/12/25 23:25:18 alex
97 * - und nochmal Aenderungen am Logging ;-)
99 * Revision 1.6 2001/12/25 23:13:33 alex
100 * - Debug-Meldungen angepasst.
102 * Revision 1.5 2001/12/25 22:02:42 alex
103 * - neuer IRC-Befehl "/QUIT". Verbessertes Logging & Debug-Ausgaben.
105 * Revision 1.4 2001/12/25 19:19:30 alex
106 * - bessere Fehler-Abfragen, diverse Bugfixes.
107 * - Nicks werden nur einmal vergeben :-)
108 * - /MOTD wird unterstuetzt.
110 * Revision 1.3 2001/12/24 01:34:06 alex
111 * - USER und NICK wird nun in beliebiger Reihenfolge akzeptiert (wg. BitchX)
112 * - MOTD-Ausgabe begonnen zu implementieren.
114 * Revision 1.2 2001/12/23 21:57:16 alex
115 * - erste IRC-Befehle zu implementieren begonnen.
117 * Revision 1.1 2001/12/14 08:13:43 alex
118 * - neues Modul begonnen :-)
138 #include "messages.h"
146 #define CONNECTED TRUE
147 #define DISCONNECTED FALSE
150 LOCAL BOOLEAN Hello_User( CLIENT *Client );
151 LOCAL BOOLEAN Show_MOTD( CLIENT *Client );
153 LOCAL VOID Kill_Nick( CHAR *Nick );
156 GLOBAL VOID IRC_Init( VOID )
161 GLOBAL VOID IRC_Exit( VOID )
166 GLOBAL BOOLEAN IRC_WriteStrClient( CLIENT *Client, CHAR *Format, ... )
169 BOOLEAN ok = CONNECTED;
172 assert( Client != NULL );
173 assert( Format != NULL );
175 va_start( ap, Format );
176 vsnprintf( buffer, 1000, Format, ap );
179 /* an den Client selber */
180 ok = IRC_WriteStrClientPrefix( Client, Client_ThisServer( ), buffer );
183 } /* IRC_WriteStrClient */
186 GLOBAL BOOLEAN IRC_WriteStrClientPrefix( CLIENT *Client, CLIENT *Prefix, CHAR *Format, ... )
188 /* Text an Clients, lokal bzw. remote, senden. */
193 assert( Client != NULL );
194 assert( Format != NULL );
195 assert( Prefix != NULL );
197 va_start( ap, Format );
198 vsnprintf( buffer, 1000, Format, ap );
201 return Conn_WriteStr( Client_Conn( Client_NextHop( Client )), ":%s %s", Client_ID( Prefix ), buffer );
202 } /* IRC_WriteStrClientPrefix */
205 GLOBAL BOOLEAN IRC_WriteStrRelated( CLIENT *Client, CHAR *Format, ... )
208 BOOLEAN ok = CONNECTED;
211 assert( Client != NULL );
212 assert( Format != NULL );
214 va_start( ap, Format );
215 vsnprintf( buffer, 1000, Format, ap );
218 /* an den Client selber */
219 ok = IRC_WriteStrClient( Client, buffer );
224 } /* IRC_WriteStrRelated */
227 GLOBAL VOID IRC_WriteStrServers( CLIENT *ExceptOf, CHAR *Format, ... )
232 assert( Format != NULL );
234 va_start( ap, Format );
235 vsnprintf( buffer, 1000, Format, ap );
238 /* an den Client selber */
239 return IRC_WriteStrServersPrefix( ExceptOf, Client_ThisServer( ), buffer );
240 } /* IRC_WriteStrServers */
243 GLOBAL VOID IRC_WriteStrServersPrefix( CLIENT *ExceptOf, CLIENT *Prefix, CHAR *Format, ... )
249 assert( Format != NULL );
250 assert( Prefix != NULL );
252 va_start( ap, Format );
253 vsnprintf( buffer, 1000, Format, ap );
259 if(( Client_Type( c ) == CLIENT_SERVER ) && ( Client_Conn( c ) > NONE ) && ( c != Client_ThisServer( )) && ( c != ExceptOf ))
261 /* Ziel-Server gefunden */
262 IRC_WriteStrClientPrefix( c, Prefix, buffer );
264 c = Client_Next( c );
266 } /* IRC_WriteStrServersPrefix */
269 GLOBAL BOOLEAN IRC_PASS( CLIENT *Client, REQUEST *Req )
271 assert( Client != NULL );
272 assert( Req != NULL );
274 /* Fehler liefern, wenn kein lokaler Client */
275 if( Client_Conn( Client ) <= NONE ) return IRC_WriteStrClient( Client, ERR_UNKNOWNCOMMAND_MSG, Client_ID( Client ), Req->command );
277 if(( Client_Type( Client ) == CLIENT_UNKNOWN ) && ( Req->argc == 1))
279 /* noch nicht registrierte unbekannte Verbindung */
280 Log( LOG_DEBUG, "Connection %d: got PASS command ...", Client_Conn( Client ));
282 /* Passwort speichern */
283 Client_SetPassword( Client, Req->argv[0] );
285 Client_SetType( Client, CLIENT_GOTPASS );
288 else if((( Client_Type( Client ) == CLIENT_UNKNOWN ) || ( Client_Type( Client ) == CLIENT_UNKNOWNSERVER )) && (( Req->argc == 3 ) || ( Req->argc == 4 )))
290 /* noch nicht registrierte Server-Verbindung */
291 Log( LOG_DEBUG, "Connection %d: got PASS command (new server link) ...", Client_Conn( Client ));
293 /* Passwort speichern */
294 Client_SetPassword( Client, Req->argv[0] );
296 Client_SetType( Client, CLIENT_GOTPASSSERVER );
299 else if(( Client_Type( Client ) == CLIENT_UNKNOWN ) || ( Client_Type( Client ) == CLIENT_UNKNOWNSERVER ))
301 /* Falsche Anzahl Parameter? */
302 return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
304 else return IRC_WriteStrClient( Client, ERR_ALREADYREGISTRED_MSG, Client_ID( Client ));
308 GLOBAL BOOLEAN IRC_SERVER( CLIENT *Client, REQUEST *Req )
310 CHAR str[LINE_LEN], *ptr;
314 assert( Client != NULL );
315 assert( Req != NULL );
317 /* Fehler liefern, wenn kein lokaler Client */
318 if( Client_Conn( Client ) <= NONE ) return IRC_WriteStrClient( Client, ERR_UNKNOWNCOMMAND_MSG, Client_ID( Client ), Req->command );
320 if( Client_Type( Client ) == CLIENT_GOTPASSSERVER )
322 /* Verbindung soll als Server-Server-Verbindung registriert werden */
323 Log( LOG_DEBUG, "Connection %d: got SERVER command (new server link) ...", Client_Conn( Client ));
325 /* Falsche Anzahl Parameter? */
326 if( Req->argc != 3 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
328 /* Ist dieser Server bei uns konfiguriert? */
329 for( i = 0; i < Conf_Server_Count; i++ ) if( strcasecmp( Req->argv[0], Conf_Server[i].name ) == 0 ) break;
330 if( i >= Conf_Server_Count )
332 /* Server ist nicht konfiguriert! */
333 Log( LOG_ERR, "Connection %d: Server \"%s\" not configured here!", Client_Conn( Client ), Req->argv[0] );
334 Conn_Close( Client_Conn( Client ), NULL, "Server not configured here", TRUE );
337 if( strcmp( Client_Password( Client ), Conf_Server[i].pwd ) != 0 )
339 /* Falsches Passwort */
340 Log( LOG_ERR, "Connection %d: Bad password for server \"%s\"!", Client_Conn( Client ), Req->argv[0] );
341 Conn_Close( Client_Conn( Client ), NULL, "Bad password", TRUE );
345 /* Ist ein Server mit dieser ID bereits registriert? */
346 if( ! Client_CheckID( Client, Req->argv[0] )) return DISCONNECTED;
348 /* Server-Strukturen fuellen ;-) */
349 Client_SetID( Client, Req->argv[0] );
350 Client_SetToken( Client, atoi( Req->argv[1] ));
351 Client_SetInfo( Client, Req->argv[2] );
352 Client_SetHops( Client, 1 );
354 Log( LOG_NOTICE, "Server \"%s\" registered (connection %d, 1 hop - direct link).", Client_ID( Client ), Client_Conn( Client ));
356 Client_SetType( Client, CLIENT_SERVER );
359 else if( Client_Type( Client ) == CLIENT_SERVER )
361 /* Neuer Server wird im Netz angekuendigt */
363 /* Falsche Anzahl Parameter? */
364 if( Req->argc != 4 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
366 /* Ist ein Server mit dieser ID bereits registriert? */
367 if( ! Client_CheckID( Client, Req->argv[0] )) return DISCONNECTED;
369 /* Ueberfluessige Hostnamen aus Info-Text entfernen */
370 ptr = strchr( Req->argv[3] + 2, '[' );
371 if( ! ptr ) ptr = Req->argv[3];
373 /* Neue Client-Struktur anlegen */
374 c = Client_NewRemoteServer( Client, Req->argv[0], atoi( Req->argv[1] ), atoi( Req->argv[2] ), ptr, TRUE );
377 /* Neue Client-Struktur konnte nicht angelegt werden */
378 Log( LOG_ALERT, "Can't create client structure for server! (on connection %d)", Client_Conn( Client ));
379 Conn_Close( Client_Conn( Client ), NULL, "Can't allocate client structure for remote server", TRUE );
383 /* Log-Meldung zusammenbauen und ausgeben */
384 if(( Client_Hops( c ) > 1 ) && ( Req->prefix[0] )) sprintf( str, "connected to %s, ", Req->prefix );
385 else strcpy( str, "" );
386 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": "" );
390 else return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
394 GLOBAL BOOLEAN IRC_NJOIN( CLIENT *Client, REQUEST *Req )
396 assert( Client != NULL );
397 assert( Req != NULL );
399 if( Client_Type( Client ) != CLIENT_SERVER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTEREDSERVER_MSG, Client_ID( Client ));
405 GLOBAL BOOLEAN IRC_NICK( CLIENT *Client, REQUEST *Req )
409 assert( Client != NULL );
410 assert( Req != NULL );
412 /* Zumindest BitchX sendet NICK-USER in der falschen Reihenfolge. */
414 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 )
416 if( Client_Type( Client ) == CLIENT_UNKNOWN || Client_Type( Client ) == CLIENT_GOTPASS || Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_USER )
419 /* User-Registrierung bzw. Nick-Aenderung */
421 /* Falsche Anzahl Parameter? */
422 if( Req->argc != 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
424 /* Ist der Client "restricted"? */
425 if( Client_HasMode( Client, 'r' )) return IRC_WriteStrClient( Client, ERR_RESTRICTED_MSG, Client_ID( Client ));
427 /* Wenn der Client zu seinem eigenen Nick wechseln will, so machen
428 * wir nichts. So macht es das Original und mind. Snak hat probleme,
429 * wenn wir es nicht so machen. Ob es so okay ist? Hm ... */
431 if( strcmp( Client_ID( Client ), Req->argv[0] ) == 0 ) return CONNECTED;
434 /* pruefen, ob Nick bereits vergeben. Speziallfall: der Client
435 * will nur die Gross- und Kleinschreibung aendern. Das darf
436 * er natuerlich machen :-) */
437 if( strcasecmp( Client_ID( Client ), Req->argv[0] ) != 0 )
439 if( ! Client_CheckNick( Client, Req->argv[0] )) return CONNECTED;
442 if( Client_Type( Client ) == CLIENT_USER )
444 /* Nick-Aenderung: allen mitteilen! */
445 Log( LOG_INFO, "User \"%s\" changed nick: \"%s\" -> \"%s\".", Client_Mask( Client ), Client_ID( Client ), Req->argv[0] );
446 IRC_WriteStrRelated( Client, "NICK :%s", Req->argv[0] );
449 /* Client-Nick registrieren */
450 Client_SetID( Client, Req->argv[0] );
452 if( Client_Type( Client ) != CLIENT_USER )
455 Log( LOG_DEBUG, "Connection %d: got NICK command ...", Client_Conn( Client ));
456 if( Client_Type( Client ) == CLIENT_GOTUSER ) return Hello_User( Client );
457 else Client_SetType( Client, CLIENT_GOTNICK );
461 else if( Client_Type( Client ) == CLIENT_SERVER )
463 /* Server fuehrt neuen Client ein */
465 /* Falsche Anzahl Parameter? */
466 if( Req->argc != 7 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
468 /* Nick ueberpruefen */
469 c = Client_GetFromID( Req->argv[0] );
472 /* Der neue Nick ist auf diesem Server bereits registriert:
473 * sowohl der neue, als auch der alte Client muessen nun
474 * disconnectiert werden. */
475 Log( LOG_ERR, "Server %s introduces already registered nick %s!", Client_ID( Client ), Req->argv[0] );
476 Kill_Nick( Req->argv[0] );
480 /* Server, zu dem der Client connectiert ist, suchen */
481 intr_c = Client_GetFromToken( Client, atoi( Req->argv[4] ));
484 Log( LOG_ERR, "Server %s introduces nick %s with unknown host server!?", Client_ID( Client ), Req->argv[0] );
485 Kill_Nick( Req->argv[0] );
489 /* Neue Client-Struktur anlegen */
490 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], Req->argv[6], TRUE );
493 /* Eine neue Client-Struktur konnte nicht angelegt werden.
494 * Der Client muss disconnectiert werden, damit der Netz-
495 * status konsistent bleibt. */
496 Log( LOG_ALERT, "Can't create client structure! (on connection %d)", Client_Conn( Client ));
497 Kill_Nick( Req->argv[0] );
501 Log( LOG_DEBUG, "User \"%s\" registered (via %s, on %s, %d hop%s).", Client_ID( c ), Client_ID( Client ), Client_ID( intr_c ), Client_Hops( c ), Client_Hops( c ) > 1 ? "s": "" );
505 else return IRC_WriteStrClient( Client, ERR_ALREADYREGISTRED_MSG, Client_ID( Client ));
509 GLOBAL BOOLEAN IRC_USER( CLIENT *Client, REQUEST *Req )
511 assert( Client != NULL );
512 assert( Req != NULL );
515 if( Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_GOTPASS || Client_Type( Client ) == CLIENT_UNKNOWN )
517 if( Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_GOTPASS )
520 /* Falsche Anzahl Parameter? */
521 if( Req->argc != 4 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
523 Client_SetUser( Client, Req->argv[0], FALSE );
524 Client_SetInfo( Client, Req->argv[3] );
526 Log( LOG_DEBUG, "Connection %d: got USER command ...", Client_Conn( Client ));
527 if( Client_Type( Client ) == CLIENT_GOTNICK ) return Hello_User( Client );
528 else Client_SetType( Client, CLIENT_GOTUSER );
531 else if( Client_Type( Client ) == CLIENT_USER || Client_Type( Client ) == CLIENT_SERVER || Client_Type( Client ) == CLIENT_SERVICE )
533 return IRC_WriteStrClient( Client, ERR_ALREADYREGISTRED_MSG, Client_ID( Client ));
535 else return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
539 GLOBAL BOOLEAN IRC_QUIT( CLIENT *Client, REQUEST *Req )
543 assert( Client != NULL );
544 assert( Req != NULL );
546 if(( Client_Type( Client ) == CLIENT_USER ) || ( Client_Type( Client ) == CLIENT_SERVICE ))
550 /* Falsche Anzahl Parameter? */
551 if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
553 if( Req->argc == 0 ) Conn_Close( Client_Conn( Client ), "Got QUIT command.", NULL, TRUE );
554 else Conn_Close( Client_Conn( Client ), "Got QUIT command.", Req->argv[0], TRUE );
558 else if ( Client_Type( Client ) == CLIENT_SERVER )
562 /* Falsche Anzahl Parameter? */
563 if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
565 target = Client_Search( Req->prefix );
568 Log( LOG_ERR, "Got QUIT from %s for unknown server!?", Client_ID( Client ));
572 if( Req->argc == 0 ) Client_Destroy( target, "Got QUIT command.", NULL );
573 else Client_Destroy( target, "Got QUIT command.", Req->argv[0] );
577 else return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
581 GLOBAL BOOLEAN IRC_SQUIT( CLIENT *Client, REQUEST *Req )
585 assert( Client != NULL );
586 assert( Req != NULL );
588 /* SQUIT ist nur fuer Server erlaubt */
589 if( Client_Type( Client ) != CLIENT_SERVER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
591 /* Falsche Anzahl Parameter? */
592 if( Req->argc != 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
594 target = Client_GetFromID( Req->argv[0] );
597 Log( LOG_ERR, "Got SQUIT from %s for unknown server \%s\"!?", Client_ID( Client ), Req->argv[0] );
601 if( target == Client ) Log( LOG_DEBUG, "Got SQUIT from %s: %s", Client_ID( Client ), Req->argv[1] );
602 else Log( LOG_DEBUG, "Got SQUIT from %s for %s: %s", Client_ID( Client ), Client_ID( target ), Req->argv[1] );
604 /* FIXME: das SQUIT muss an alle Server weiter-
605 * geleitet werden ... */
607 if( Client_Conn( target ) > NONE )
609 if( Req->argv[1][0] ) Conn_Close( Client_Conn( target ), "Got SQUIT command.", Req->argv[1], TRUE );
610 else Conn_Close( Client_Conn( target ), "Got SQUIT command.", NULL, TRUE );
615 Client_Destroy( target, "Got SQUIT command.", Req->argv[1] );
621 GLOBAL BOOLEAN IRC_PING( CLIENT *Client, REQUEST *Req )
623 assert( Client != NULL );
624 assert( Req != NULL );
626 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
628 /* Falsche Anzahl Parameter? */
629 if( Req->argc < 1 ) return IRC_WriteStrClient( Client, ERR_NOORIGIN_MSG, Client_ID( Client ));
630 if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
632 return IRC_WriteStrClient( Client, "PONG %s :%s", Client_ID( Client_ThisServer( )), Client_ID( Client ));
636 GLOBAL BOOLEAN IRC_PONG( CLIENT *Client, REQUEST *Req )
638 assert( Client != NULL );
639 assert( Req != NULL );
641 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
643 /* Falsche Anzahl Parameter? */
644 if( Req->argc < 1 ) return IRC_WriteStrClient( Client, ERR_NOORIGIN_MSG, Client_ID( Client ));
645 if( Req->argc > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
647 /* Der Connection-Timestamp wurde schon beim Lesen aus dem Socket
648 * aktualisiert, daher muss das hier nicht mehr gemacht werden. */
650 Log( LOG_DEBUG, "Connection %d: received PONG.", Client_Conn( Client ));
655 GLOBAL BOOLEAN IRC_MOTD( CLIENT *Client, REQUEST *Req )
657 assert( Client != NULL );
658 assert( Req != NULL );
660 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
662 /* Falsche Anzahl Parameter? */
663 if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
665 return Show_MOTD( Client );
669 GLOBAL BOOLEAN IRC_PRIVMSG( CLIENT *Client, REQUEST *Req )
673 assert( Client != NULL );
674 assert( Req != NULL );
676 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
678 /* Falsche Anzahl Parameter? */
679 if( Req->argc == 0 ) return IRC_WriteStrClient( Client, ERR_NORECIPIENT_MSG, Client_ID( Client ), Req->command );
680 if( Req->argc == 1 ) return IRC_WriteStrClient( Client, ERR_NOTEXTTOSEND_MSG, Client_ID( Client ));
681 if( Req->argc > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
683 if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_GetFromID( Req->prefix );
686 to = Client_Search( Req->argv[0] );
689 /* Okay, Ziel ist ein User */
690 if( Client_Conn( from ) >= 0 ) Conn_UpdateIdle( Client_Conn( from ));
691 return IRC_WriteStrClientPrefix( to, from, "PRIVMSG %s :%s", Client_ID( to ), Req->argv[1] );
693 else return IRC_WriteStrClient( from, ERR_NOSUCHNICK_MSG, Client_ID( from ), Req->argv[0] );
697 GLOBAL BOOLEAN IRC_NOTICE( CLIENT *Client, REQUEST *Req )
701 assert( Client != NULL );
702 assert( Req != NULL );
704 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
706 /* Falsche Anzahl Parameter? */
707 if( Req->argc != 2 ) return CONNECTED;
709 if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_GetFromID( Req->prefix );
712 to = Client_Search( Req->argv[0] );
715 /* Okay, Ziel ist ein User */
716 return IRC_WriteStrClientPrefix( to, from, "NOTICE %s :%s", Client_ID( to ), Req->argv[1] );
718 else return CONNECTED;
722 GLOBAL BOOLEAN IRC_MODE( CLIENT *Client, REQUEST *Req )
724 CHAR x[2], new_modes[CLIENT_MODE_LEN], *ptr;
728 assert( Client != NULL );
729 assert( Req != NULL );
731 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
733 /* Falsche Anzahl Parameter? */
734 if(( Req->argc > 2 ) || ( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
736 /* "Ziel-Client" suchen */
737 target = Client_Search( Req->argv[0] );
739 /* Wer ist der Anfragende? */
740 if( Client_Type( Client ) == CLIENT_USER )
742 /* User: MODE ist nur fuer sich selber zulaessig */
743 if( target != Client ) return IRC_WriteStrClient( Client, ERR_USERSDONTMATCH_MSG, Client_ID( Client ));
747 /* Server: gibt es den Client ueberhaupt? */
748 if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[0] );
751 /* Werden die Modes erfragt? */
752 if( Req->argc == 1 ) return IRC_WriteStrClient( Client, RPL_UMODEIS_MSG, Client_ID( Client ), Client_Modes( Client ));
756 /* Sollen Modes gesetzt oder geloescht werden? */
757 if( *ptr == '+' ) set = TRUE;
758 else if( *ptr == '-' ) set = FALSE;
759 else return IRC_WriteStrClient( Client, ERR_UMODEUNKNOWNFLAG_MSG, Client_ID( Client ));
761 /* Reply-String mit Aenderungen vorbereiten */
762 if( set ) strcpy( new_modes, "+" );
763 else strcpy( new_modes, "-" );
771 if( Client_Type( Client ) == CLIENT_SERVER )
785 /* restricted (kann nur gesetzt werden) */
786 if( set ) x[0] = 'r';
787 else ok = IRC_WriteStrClient( target, ERR_RESTRICTED_MSG, Client_ID( target ));
790 /* operator (kann nur geloescht werden) */
793 Client_SetOperByMe( target, FALSE );
796 else ok = IRC_WriteStrClient( target, ERR_UMODEUNKNOWNFLAG_MSG, Client_ID( target ));
799 ok = IRC_WriteStrClient( target, ERR_UMODEUNKNOWNFLAG_MSG, Client_ID( target ));
806 if( ! x[0] ) continue;
808 /* Okay, gueltigen Mode gefunden */
811 /* Mode setzen. Wenn der Client ihn noch nicht hatte: merken */
812 if( Client_ModeAdd( target, x[0] )) strcat( new_modes, x );
816 /* Modes geloescht. Wenn der Client ihn hatte: merken */
817 if( Client_ModeDel( target, x[0] )) strcat( new_modes, x );
821 /* Geanderte Modes? */
824 if( Client_Type( Client ) == CLIENT_SERVER )
826 /* Modes an andere Server forwarden */
831 /* Bestaetigung an Client schicken */
832 ok = IRC_WriteStrRelated( Client, "MODE %s :%s", Client_ID( target ), new_modes );
834 Log( LOG_DEBUG, "User \"%s\": Mode change, now \"%s\".", Client_Mask( target ), Client_Modes( target ));
840 GLOBAL BOOLEAN IRC_OPER( CLIENT *Client, REQUEST *Req )
844 assert( Client != NULL );
845 assert( Req != NULL );
847 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
849 /* Falsche Anzahl Parameter? */
850 if( Req->argc != 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
852 /* Operator suchen */
853 for( i = 0; i < Conf_Oper_Count; i++)
855 if( Conf_Oper[i].name[0] && Conf_Oper[i].pwd[0] && ( strcmp( Conf_Oper[i].name, Req->argv[0] ) == 0 )) break;
857 if( i >= Conf_Oper_Count )
859 Log( LOG_WARNING, "Got invalid OPER from \"%s\": Name \"%s\" not configured!", Client_Mask( Client ), Req->argv[0] );
860 return IRC_WriteStrClient( Client, ERR_PASSWDMISMATCH_MSG, Client_ID( Client ));
863 /* Stimmt das Passwort? */
864 if( strcmp( Conf_Oper[i].pwd, Req->argv[1] ) != 0 )
866 Log( LOG_WARNING, "Got invalid OPER from \"%s\": Bad password for \"%s\"!", Client_Mask( Client ), Conf_Oper[i].name );
867 return IRC_WriteStrClient( Client, ERR_PASSWDMISMATCH_MSG, Client_ID( Client ));
870 if( ! Client_HasMode( Client, 'o' ))
872 /* noch kein o-Mode gesetzt */
873 Client_ModeAdd( Client, 'o' );
874 if( ! IRC_WriteStrRelated( Client, "MODE %s :+o", Client_ID( Client ))) return DISCONNECTED;
877 if( ! Client_OperByMe( Client )) Log( LOG_NOTICE, "Got valid OPER from \"%s\", user is an IRC operator now.", Client_Mask( Client ));
879 Client_SetOperByMe( Client, TRUE );
880 return IRC_WriteStrClient( Client, RPL_YOUREOPER_MSG, Client_ID( Client ));
884 GLOBAL BOOLEAN IRC_DIE( CLIENT *Client, REQUEST *Req )
886 assert( Client != NULL );
887 assert( Req != NULL );
889 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
891 /* Falsche Anzahl Parameter? */
892 if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
894 if(( ! Client_HasMode( Client, 'o' )) || ( ! Client_OperByMe( Client ))) return IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client ));
896 Log( LOG_NOTICE, "Got DIE command from \"%s\", going down!", Client_Mask( Client ));
902 GLOBAL BOOLEAN IRC_RESTART( CLIENT *Client, REQUEST *Req )
904 assert( Client != NULL );
905 assert( Req != NULL );
907 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
909 /* Falsche Anzahl Parameter? */
910 if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
912 if(( ! Client_HasMode( Client, 'o' )) || ( ! Client_OperByMe( Client ))) return IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client ));
914 Log( LOG_NOTICE, "Got RESTART command from \"%s\", going down!", Client_Mask( Client ));
915 NGIRCd_Restart = TRUE;
920 GLOBAL BOOLEAN IRC_NAMES( CLIENT *Client, REQUEST *Req )
922 CHAR rpl[COMMAND_LEN];
925 assert( Client != NULL );
926 assert( Req != NULL );
928 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
930 /* Falsche Anzahl Parameter? */
931 if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
933 /* Noch alle User ausgeben, die in keinem Channel sind */
938 if( Client_Type( c ) == CLIENT_USER )
940 /* Okay, das ist ein User */
941 strcat( rpl, Client_ID( c ));
945 /* Antwort zu lang? Splitten. */
946 if( strlen( rpl ) > 480 )
948 if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0';
949 if( ! IRC_WriteStrClient( Client, RPL_NAMREPLY_MSG, Client_ID( Client ), "*", "*", rpl )) return DISCONNECTED;
953 c = Client_Next( c );
957 /* es wurden User gefunden */
958 if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0';
959 if( ! IRC_WriteStrClient( Client, RPL_NAMREPLY_MSG, Client_ID( Client ), "*", "*", rpl )) return DISCONNECTED;
961 return IRC_WriteStrClient( Client, RPL_ENDOFNAMES_MSG, Client_ID( Client ), "*" );
965 GLOBAL BOOLEAN IRC_ISON( CLIENT *Client, REQUEST *Req )
967 CHAR rpl[COMMAND_LEN];
972 assert( Client != NULL );
973 assert( Req != NULL );
975 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
977 /* Falsche Anzahl Parameter? */
978 if(( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
980 strcpy( rpl, RPL_ISON_MSG );
981 for( i = 0; i < Req->argc; i++ )
983 ptr = strtok( Req->argv[i], " " );
987 c = Client_GetFromID( ptr );
988 if( c && ( Client_Type( c ) == CLIENT_USER ))
990 /* Dieser Nick ist "online" */
994 ptr = strtok( NULL, " " );
997 if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0';
999 return IRC_WriteStrClient( Client, rpl, Client_ID( Client ) );
1003 GLOBAL BOOLEAN IRC_WHOIS( CLIENT *Client, REQUEST *Req )
1005 CLIENT *from, *target, *c;
1008 assert( Client != NULL );
1009 assert( Req != NULL );
1011 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
1013 /* Falsche Anzahl Parameter? */
1014 if(( Req->argc < 1 ) || ( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
1017 c = Client_GetFromID( Req->argv[Req->argc - 1] );
1018 if(( ! c ) || ( Client_Type( c ) != CLIENT_USER )) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[Req->argc - 1] );
1020 /* Empfaenger des WHOIS suchen */
1021 if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_GetFromID( Req->prefix );
1023 if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
1025 /* Forwarden an anderen Server? */
1028 /* angegebenen Ziel-Server suchen */
1029 target = Client_GetFromID( Req->argv[1] );
1030 if( ! target ) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[1] );
1033 else if( Client_Conn( c ) == NONE )
1035 /* Client ist nicht von uns. Ziel-Server suchen */
1041 if( target && ( Client_NextHop( target ) != Client_ThisServer( ))) return IRC_WriteStrClientPrefix( target, from, "WHOIS %s :%s", Req->argv[0], ptr );
1043 /* Nick, User und Name */
1044 if( ! IRC_WriteStrClient( from, RPL_WHOISUSER_MSG, Client_ID( from ), Client_ID( c ), Client_User( c ), Client_Hostname( c ), Client_Info( c ))) return DISCONNECTED;
1047 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;
1050 if( Client_HasMode( c, 'o' ))
1052 if( ! IRC_WriteStrClient( from, RPL_WHOISOPERATOR_MSG, Client_ID( from ), Client_ID( c ))) return DISCONNECTED;
1055 /* Idle (nur lokale Clients) */
1056 if( Client_Conn( c ) > NONE )
1058 if( ! IRC_WriteStrClient( from, RPL_WHOISIDLE_MSG, Client_ID( from ), Client_ID( c ), Conn_GetIdle( Client_Conn ( c )))) return DISCONNECTED;
1062 return IRC_WriteStrClient( from, RPL_ENDOFWHOIS_MSG, Client_ID( from ), Client_ID( c ));
1066 GLOBAL BOOLEAN IRC_USERHOST( CLIENT *Client, REQUEST *Req )
1068 CHAR rpl[COMMAND_LEN];
1072 assert( Client != NULL );
1073 assert( Req != NULL );
1075 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
1077 /* Falsche Anzahl Parameter? */
1078 if(( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
1080 if( Req->argc > 5 ) max = 5;
1081 else max = Req->argc;
1083 strcpy( rpl, RPL_USERHOST_MSG );
1084 for( i = 0; i < max; i++ )
1086 c = Client_GetFromID( Req->argv[i] );
1087 if( c && ( Client_Type( c ) == CLIENT_USER ))
1089 /* Dieser Nick ist "online" */
1090 strcat( rpl, Client_ID( c ));
1091 if( Client_HasMode( c, 'o' )) strcat( rpl, "*" );
1093 if( Client_HasMode( c, 'a' )) strcat( rpl, "-" );
1094 else strcat( rpl, "+" );
1095 strcat( rpl, Client_User( c ));
1097 strcat( rpl, Client_Hostname( c ));
1101 if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0';
1103 return IRC_WriteStrClient( Client, rpl, Client_ID( Client ) );
1104 } /* IRC_USERHOST */
1107 GLOBAL BOOLEAN IRC_ERROR( CLIENT *Client, REQUEST *Req )
1109 assert( Client != NULL );
1110 assert( Req != NULL );
1112 if( Req->argc < 1 ) Log( LOG_NOTICE, "Got ERROR from \"%s\"!", Client_Mask( Client ));
1113 else Log( LOG_NOTICE, "Got ERROR from \"%s\": %s!", Client_Mask( Client ), Req->argv[0] );
1119 LOCAL BOOLEAN Hello_User( CLIENT *Client )
1121 assert( Client != NULL );
1123 /* Passwort ueberpruefen */
1124 if( strcmp( Client_Password( Client ), Conf_ServerPwd ) != 0 )
1126 /* Falsches Passwort */
1127 Log( LOG_ERR, "User \"%s\" rejected (connection %d): Bad password!", Client_Mask( Client ), Client_Conn( Client ));
1128 Conn_Close( Client_Conn( Client ), NULL, "Bad password", TRUE );
1129 return DISCONNECTED;
1132 Log( LOG_NOTICE, "User \"%s\" registered (connection %d).", Client_Mask( Client ), Client_Conn( Client ));
1134 /* Andere Server informieren */
1135 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 ));
1137 if( ! IRC_WriteStrClient( Client, RPL_WELCOME_MSG, Client_ID( Client ), Client_Mask( Client ))) return FALSE;
1138 if( ! IRC_WriteStrClient( Client, RPL_YOURHOST_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( )))) return FALSE;
1139 if( ! IRC_WriteStrClient( Client, RPL_CREATED_MSG, Client_ID( Client ), NGIRCd_StartStr )) return FALSE;
1140 if( ! IRC_WriteStrClient( Client, RPL_MYINFO_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( )))) return FALSE;
1142 Client_SetType( Client, CLIENT_USER );
1144 return Show_MOTD( Client );
1148 LOCAL BOOLEAN Show_MOTD( CLIENT *Client )
1154 assert( Client != NULL );
1156 fd = fopen( Conf_MotdFile, "r" );
1159 Log( LOG_WARNING, "Can't read MOTD file \"%s\": %s", Conf_MotdFile, strerror( errno ));
1160 return IRC_WriteStrClient( Client, ERR_NOMOTD_MSG, Client_ID( Client ) );
1163 IRC_WriteStrClient( Client, RPL_MOTDSTART_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( )));
1166 if( ! fgets( line, 126, fd )) break;
1167 if( line[strlen( line ) - 1] == '\n' ) line[strlen( line ) - 1] = '\0';
1168 if( ! IRC_WriteStrClient( Client, RPL_MOTD_MSG, Client_ID( Client ), line ))
1174 ok = IRC_WriteStrClient( Client, RPL_ENDOFMOTD_MSG, Client_ID( Client ) );
1182 LOCAL VOID Kill_Nick( CHAR *Nick )
1184 Log( LOG_ERR, "User(s) with nick \"%s\" will be disconnected!", Nick );
1186 Log( LOG_ALERT, "[Kill_Nick() not implemented - OOOPS!]" );