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 1.29 2002/01/05 23:24:54 alex Exp $
17 * Revision 1.29 2002/01/05 23:24:54 alex
18 * - WHOIS erweitert: Anfragen koennen an andere Server weitergeleitet werden.
19 * - Vorbereitungen fuer Ident-Abfragen bei neuen Client-Strukturen.
21 * Revision 1.28 2002/01/05 20:08:02 alex
22 * - Div. Aenderungen fuer die Server-Links (u.a. WHOIS, QUIT, NICK angepasst).
23 * - Neue Funktionen IRC_WriteStrServer() und IRC_WriteStrServerPrefix().
25 * Revision 1.27 2002/01/05 19:15:03 alex
26 * - Fehlerpruefung bei select() in der "Hauptschleife" korrigiert.
28 * Revision 1.26 2002/01/05 16:51:18 alex
29 * - das Passwort von Servern wird nun ueberprueft (PASS- und SERVER-Befehl).
31 * Revision 1.25 2002/01/05 00:48:33 alex
32 * - bei SQUIT wurde immer die Verbindung getrennt, auch bei Remote-Servern.
34 * Revision 1.24 2002/01/04 17:58:44 alex
35 * - IRC_WriteStrXXX()-Funktionen eingefuehrt, groessere Anpassungen daran.
36 * - neuer Befehl SQUIT, QUIT an Server-Links angepasst.
38 * Revision 1.23 2002/01/04 01:36:40 alex
39 * - Loglevel ein wenig angepasst.
41 * Revision 1.22 2002/01/04 01:21:47 alex
42 * - Client-Strukruren werden nur noch ueber Funktionen angesprochen.
43 * - Weitere Anpassungen und Erweiterungen der Server-Links.
45 * Revision 1.21 2002/01/03 02:26:51 alex
46 * - neue Befehle SERVER und NJOIN begonnen,
47 * - begonnen, diverse IRC-Befehle an Server-Links anzupassen.
49 * Revision 1.20 2002/01/02 12:46:41 alex
50 * - die Gross- und Kleinschreibung des Nicks kann mit NICK nun geaendert werden.
52 * Revision 1.19 2002/01/02 02:51:39 alex
53 * - Copyright-Texte angepasst.
54 * - neuer Befehl "ERROR".
56 * Revision 1.17 2001/12/31 15:33:13 alex
57 * - neuer Befehl NAMES, kleinere Bugfixes.
58 * - Bug bei PING behoben: war zu restriktiv implementiert :-)
60 * Revision 1.16 2001/12/31 02:18:51 alex
61 * - viele neue Befehle (WHOIS, ISON, OPER, DIE, RESTART),
62 * - neuen Header "defines.h" mit (fast) allen Konstanten.
63 * - Code Cleanups und viele "kleine" Aenderungen & Bugfixes.
65 * Revision 1.15 2001/12/30 19:26:11 alex
66 * - Unterstuetzung fuer die Konfigurationsdatei eingebaut.
68 * Revision 1.14 2001/12/30 11:42:00 alex
69 * - der Server meldet nun eine ordentliche "Start-Zeit".
71 * Revision 1.13 2001/12/29 03:10:06 alex
72 * - Neue Funktion IRC_MODE() implementiert, div. Aenderungen.
73 * - neue configure-Optione "--enable-strict-rfc".
75 * Revision 1.12 2001/12/27 19:17:26 alex
76 * - neue Befehle PRIVMSG, NOTICE, PING.
78 * Revision 1.11 2001/12/27 16:55:41 alex
79 * - neu: IRC_WriteStrRelated(), Aenderungen auch in IRC_WriteStrClient().
81 * Revision 1.10 2001/12/26 22:48:53 alex
82 * - MOTD-Datei ist nun konfigurierbar und wird gelesen.
84 * Revision 1.9 2001/12/26 14:45:37 alex
87 * Revision 1.8 2001/12/26 03:21:46 alex
88 * - PING/PONG-Befehle implementiert,
89 * - Meldungen ueberarbeitet: enthalten nun (fast) immer den Nick.
91 * Revision 1.7 2001/12/25 23:25:18 alex
92 * - und nochmal Aenderungen am Logging ;-)
94 * Revision 1.6 2001/12/25 23:13:33 alex
95 * - Debug-Meldungen angepasst.
97 * Revision 1.5 2001/12/25 22:02:42 alex
98 * - neuer IRC-Befehl "/QUIT". Verbessertes Logging & Debug-Ausgaben.
100 * Revision 1.4 2001/12/25 19:19:30 alex
101 * - bessere Fehler-Abfragen, diverse Bugfixes.
102 * - Nicks werden nur einmal vergeben :-)
103 * - /MOTD wird unterstuetzt.
105 * Revision 1.3 2001/12/24 01:34:06 alex
106 * - USER und NICK wird nun in beliebiger Reihenfolge akzeptiert (wg. BitchX)
107 * - MOTD-Ausgabe begonnen zu implementieren.
109 * Revision 1.2 2001/12/23 21:57:16 alex
110 * - erste IRC-Befehle zu implementieren begonnen.
112 * Revision 1.1 2001/12/14 08:13:43 alex
113 * - neues Modul begonnen :-)
133 #include "messages.h"
141 #define CONNECTED TRUE
142 #define DISCONNECTED FALSE
145 LOCAL BOOLEAN Hello_User( CLIENT *Client );
146 LOCAL BOOLEAN Show_MOTD( CLIENT *Client );
148 LOCAL VOID Kill_Nick( CHAR *Nick );
151 GLOBAL VOID IRC_Init( VOID )
156 GLOBAL VOID IRC_Exit( VOID )
161 GLOBAL BOOLEAN IRC_WriteStrClient( CLIENT *Client, CHAR *Format, ... )
164 BOOLEAN ok = CONNECTED;
167 assert( Client != NULL );
168 assert( Format != NULL );
170 va_start( ap, Format );
171 vsnprintf( buffer, 1000, Format, ap );
174 /* an den Client selber */
175 ok = IRC_WriteStrClientPrefix( Client, Client_ThisServer( ), buffer );
178 } /* IRC_WriteStrClient */
181 GLOBAL BOOLEAN IRC_WriteStrClientPrefix( CLIENT *Client, CLIENT *Prefix, CHAR *Format, ... )
183 /* Text an Clients, lokal bzw. remote, senden. */
188 assert( Client != NULL );
189 assert( Format != NULL );
190 assert( Prefix != NULL );
192 va_start( ap, Format );
193 vsnprintf( buffer, 1000, Format, ap );
196 return Conn_WriteStr( Client_Conn( Client_NextHop( Client )), ":%s %s", Client_ID( Prefix ), buffer );
197 } /* IRC_WriteStrClientPrefix */
200 GLOBAL BOOLEAN IRC_WriteStrRelated( CLIENT *Client, CHAR *Format, ... )
203 BOOLEAN ok = CONNECTED;
206 assert( Client != NULL );
207 assert( Format != NULL );
209 va_start( ap, Format );
210 vsnprintf( buffer, 1000, Format, ap );
213 /* an den Client selber */
214 ok = IRC_WriteStrClient( Client, buffer );
219 } /* IRC_WriteStrRelated */
222 GLOBAL VOID IRC_WriteStrServers( CLIENT *ExceptOf, CHAR *Format, ... )
227 assert( Format != NULL );
229 va_start( ap, Format );
230 vsnprintf( buffer, 1000, Format, ap );
233 /* an den Client selber */
234 return IRC_WriteStrServersPrefix( ExceptOf, Client_ThisServer( ), buffer );
235 } /* IRC_WriteStrServers */
238 GLOBAL VOID IRC_WriteStrServersPrefix( CLIENT *ExceptOf, CLIENT *Prefix, CHAR *Format, ... )
244 assert( Format != NULL );
245 assert( Prefix != NULL );
247 va_start( ap, Format );
248 vsnprintf( buffer, 1000, Format, ap );
254 if(( Client_Type( c ) == CLIENT_SERVER ) && ( Client_Conn( c ) > NONE ) && ( c != Client_ThisServer( )) && ( c != ExceptOf ))
256 /* Ziel-Server gefunden */
257 IRC_WriteStrClientPrefix( c, Prefix, buffer );
259 c = Client_Next( c );
261 } /* IRC_WriteStrServersPrefix */
264 GLOBAL BOOLEAN IRC_PASS( CLIENT *Client, REQUEST *Req )
266 assert( Client != NULL );
267 assert( Req != NULL );
269 /* Fehler liefern, wenn kein lokaler Client */
270 if( Client_Conn( Client ) <= NONE ) return IRC_WriteStrClient( Client, ERR_UNKNOWNCOMMAND_MSG, Client_ID( Client ), Req->command );
272 if(( Client_Type( Client ) == CLIENT_UNKNOWN ) && ( Req->argc == 1))
274 /* noch nicht registrierte unbekannte Verbindung */
275 Log( LOG_DEBUG, "Connection %d: got PASS command ...", Client_Conn( Client ));
277 /* Passwort speichern */
278 Client_SetPassword( Client, Req->argv[0] );
280 Client_SetType( Client, CLIENT_GOTPASS );
283 else if((( Client_Type( Client ) == CLIENT_UNKNOWN ) || ( Client_Type( Client ) == CLIENT_UNKNOWNSERVER )) && (( Req->argc == 3 ) || ( Req->argc == 4 )))
285 /* noch nicht registrierte Server-Verbindung */
286 Log( LOG_DEBUG, "Connection %d: got PASS command (new server link) ...", Client_Conn( Client ));
288 /* Passwort speichern */
289 Client_SetPassword( Client, Req->argv[0] );
291 Client_SetType( Client, CLIENT_GOTPASSSERVER );
294 else if(( Client_Type( Client ) == CLIENT_UNKNOWN ) || ( Client_Type( Client ) == CLIENT_UNKNOWNSERVER ))
296 /* Falsche Anzahl Parameter? */
297 return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
299 else return IRC_WriteStrClient( Client, ERR_ALREADYREGISTRED_MSG, Client_ID( Client ));
303 GLOBAL BOOLEAN IRC_SERVER( CLIENT *Client, REQUEST *Req )
305 CHAR str[LINE_LEN], *ptr;
309 assert( Client != NULL );
310 assert( Req != NULL );
312 /* Fehler liefern, wenn kein lokaler Client */
313 if( Client_Conn( Client ) <= NONE ) return IRC_WriteStrClient( Client, ERR_UNKNOWNCOMMAND_MSG, Client_ID( Client ), Req->command );
315 if( Client_Type( Client ) == CLIENT_GOTPASSSERVER )
317 /* Verbindung soll als Server-Server-Verbindung registriert werden */
318 Log( LOG_DEBUG, "Connection %d: got SERVER command (new server link) ...", Client_Conn( Client ));
320 /* Falsche Anzahl Parameter? */
321 if( Req->argc != 3 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
323 /* Ist dieser Server bei uns konfiguriert? */
324 for( i = 0; i < Conf_Server_Count; i++ ) if( strcasecmp( Req->argv[0], Conf_Server[i].name ) == 0 ) break;
325 if( i >= Conf_Server_Count )
327 /* Server ist nicht konfiguriert! */
328 Log( LOG_ALERT, "Connection %d: Server \"%s\" not configured here!", Client_Conn( Client ), Req->argv[0] );
329 Conn_Close( Client_Conn( Client ), "Server not configured here!" );
332 if( strcmp( Client_Password( Client ), Conf_Server[i].pwd ) != 0 )
334 /* Falsches Passwort */
335 Log( LOG_ALERT, "Connection %d: Bad password for server \"%s\"!", Client_Conn( Client ), Req->argv[0] );
336 Conn_Close( Client_Conn( Client ), "Bad password!" );
340 /* Ist ein Server mit dieser ID bereits registriert? */
341 if( ! Client_CheckID( Client, Req->argv[0] )) return DISCONNECTED;
343 /* Server-Strukturen fuellen ;-) */
344 Client_SetID( Client, Req->argv[0] );
345 Client_SetToken( Client, atoi( Req->argv[1] ));
346 Client_SetInfo( Client, Req->argv[2] );
347 Client_SetHops( Client, 1 );
349 Log( LOG_NOTICE, "Server \"%s\" registered (connection %d, 1 hop - direct link).", Client_ID( Client ), Client_Conn( Client ));
351 Client_SetType( Client, CLIENT_SERVER );
354 else if( Client_Type( Client ) == CLIENT_SERVER )
356 /* Neuer Server wird im Netz angekuendigt */
358 /* Falsche Anzahl Parameter? */
359 if( Req->argc != 4 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
361 /* Ist ein Server mit dieser ID bereits registriert? */
362 if( ! Client_CheckID( Client, Req->argv[0] )) return DISCONNECTED;
364 /* Ueberfluessige Hostnamen aus Info-Text entfernen */
365 ptr = strchr( Req->argv[3] + 2, '[' );
366 if( ! ptr ) ptr = Req->argv[3];
368 /* Neue Client-Struktur anlegen */
369 c = Client_NewRemoteServer( Client, Req->argv[0], atoi( Req->argv[1] ), atoi( Req->argv[2] ), ptr, TRUE );
372 /* Neue Client-Struktur konnte nicht angelegt werden */
373 Log( LOG_ALERT, "Can't allocate client structure for server! (on connection %d)", Client_Conn( Client ));
374 Conn_Close( Client_Conn( Client ), "Can't allocate client structure for remote server!" );
378 /* Log-Meldung zusammenbauen und ausgeben */
379 if(( Client_Hops( c ) > 1 ) && ( Req->prefix[0] )) sprintf( str, "connected to %s, ", Req->prefix );
380 else strcpy( str, "" );
381 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": "" );
385 else return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
389 GLOBAL BOOLEAN IRC_NJOIN( CLIENT *Client, REQUEST *Req )
391 assert( Client != NULL );
392 assert( Req != NULL );
394 if( Client_Type( Client ) != CLIENT_SERVER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTEREDSERVER_MSG, Client_ID( Client ));
400 GLOBAL BOOLEAN IRC_NICK( CLIENT *Client, REQUEST *Req )
404 assert( Client != NULL );
405 assert( Req != NULL );
407 /* Zumindest BitchX sendet NICK-USER in der falschen Reihenfolge. */
409 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 )
411 if( Client_Type( Client ) == CLIENT_UNKNOWN || Client_Type( Client ) == CLIENT_GOTPASS || Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_USER )
414 /* User-Registrierung bzw. Nick-Aenderung */
416 /* Falsche Anzahl Parameter? */
417 if( Req->argc != 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
419 /* Ist der Client "restricted"? */
420 if( Client_HasMode( Client, 'r' )) return IRC_WriteStrClient( Client, ERR_RESTRICTED_MSG, Client_ID( Client ));
422 /* Wenn der Client zu seinem eigenen Nick wechseln will, so machen
423 * wir nichts. So macht es das Original und mind. Snak hat probleme,
424 * wenn wir es nicht so machen. Ob es so okay ist? Hm ... */
426 if( strcmp( Client_ID( Client ), Req->argv[0] ) == 0 ) return CONNECTED;
429 /* pruefen, ob Nick bereits vergeben. Speziallfall: der Client
430 * will nur die Gross- und Kleinschreibung aendern. Das darf
431 * er natuerlich machen :-) */
432 if( strcasecmp( Client_ID( Client ), Req->argv[0] ) != 0 )
434 if( ! Client_CheckNick( Client, Req->argv[0] )) return CONNECTED;
437 if( Client_Type( Client ) == CLIENT_USER )
439 /* Nick-Aenderung: allen mitteilen! */
440 Log( LOG_INFO, "User \"%s\" changed nick: \"%s\" -> \"%s\".", Client_Mask( Client ), Client_ID( Client ), Req->argv[0] );
441 IRC_WriteStrRelated( Client, "NICK :%s", Req->argv[0] );
444 /* Client-Nick registrieren */
445 Client_SetID( Client, Req->argv[0] );
447 if( Client_Type( Client ) != CLIENT_USER )
450 Log( LOG_DEBUG, "Connection %d: got NICK command ...", Client_Conn( Client ));
451 if( Client_Type( Client ) == CLIENT_GOTUSER ) return Hello_User( Client );
452 else Client_SetType( Client, CLIENT_GOTNICK );
456 else if( Client_Type( Client ) == CLIENT_SERVER )
458 /* Server fuehrt neuen Client ein */
460 /* Falsche Anzahl Parameter? */
461 if( Req->argc != 7 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
463 /* Nick ueberpruefen */
464 c = Client_GetFromID( Req->argv[0] );
467 /* Der neue Nick ist auf diesem Server bereits registriert:
468 * sowohl der neue, als auch der alte Client muessen nun
469 * disconnectiert werden. */
470 Log( LOG_ALERT, "Server %s introduces already registered nick %s!", Client_ID( Client ), Req->argv[0] );
471 Kill_Nick( Req->argv[0] );
475 /* Server, zu dem der Client connectiert ist, suchen */
476 intr_c = Client_GetFromToken( Client, atoi( Req->argv[4] ));
479 Log( LOG_ALERT, "Server %s introduces nick %s with unknown host server!?", Client_ID( Client ), Req->argv[0] );
480 Kill_Nick( Req->argv[0] );
484 /* Neue Client-Struktur anlegen */
485 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 );
488 /* Eine neue Client-Struktur konnte nicht angelegt werden.
489 * Der Client muss disconnectiert werden, damit der Netz-
490 * status konsistent bleibt. */
491 Log( LOG_ALERT, "Can't allocate client structure! (on connection %d)", Client_Conn( Client ));
492 Kill_Nick( Req->argv[0] );
496 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": "" );
500 else return IRC_WriteStrClient( Client, ERR_ALREADYREGISTRED_MSG, Client_ID( Client ));
504 GLOBAL BOOLEAN IRC_USER( CLIENT *Client, REQUEST *Req )
506 assert( Client != NULL );
507 assert( Req != NULL );
510 if( Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_GOTPASS || Client_Type( Client ) == CLIENT_UNKNOWN )
512 if( Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_GOTPASS )
515 /* Falsche Anzahl Parameter? */
516 if( Req->argc != 4 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
518 Client_SetUser( Client, Req->argv[0], FALSE );
519 Client_SetInfo( Client, Req->argv[3] );
521 Log( LOG_DEBUG, "Connection %d: got USER command ...", Client_Conn( Client ));
522 if( Client_Type( Client ) == CLIENT_GOTNICK ) return Hello_User( Client );
523 else Client_SetType( Client, CLIENT_GOTUSER );
526 else if( Client_Type( Client ) == CLIENT_USER || Client_Type( Client ) == CLIENT_SERVER || Client_Type( Client ) == CLIENT_SERVICE )
528 return IRC_WriteStrClient( Client, ERR_ALREADYREGISTRED_MSG, Client_ID( Client ));
530 else return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
534 GLOBAL BOOLEAN IRC_QUIT( CLIENT *Client, REQUEST *Req )
538 assert( Client != NULL );
539 assert( Req != NULL );
541 if(( Client_Type( Client ) == CLIENT_USER ) || ( Client_Type( Client ) == CLIENT_SERVICE ))
545 /* Falsche Anzahl Parameter? */
546 if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
548 Conn_Close( Client_Conn( Client ), "Client wants to quit." );
551 else if ( Client_Type( Client ) == CLIENT_SERVER )
555 /* Falsche Anzahl Parameter? */
556 if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
558 target = Client_Search( Req->prefix );
559 if( ! target ) Log( LOG_ALERT, "Got QUIT from %s for unknown server!?", Client_ID( Client ));
560 else Client_Destroy( target );
563 else return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
567 GLOBAL BOOLEAN IRC_SQUIT( CLIENT *Client, REQUEST *Req )
571 assert( Client != NULL );
572 assert( Req != NULL );
574 /* SQUIT ist nur fuer Server erlaubt */
575 if( Client_Type( Client ) != CLIENT_SERVER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
577 /* Falsche Anzahl Parameter? */
578 if( Req->argc != 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
580 target = Client_GetFromID( Req->argv[0] );
583 Log( LOG_ALERT, "Got SQUIT from %s for unknown server \%s\"!?", Client_ID( Client ), Req->argv[0] );
587 if( target == Client ) Log( LOG_NOTICE, "Got SQUIT from %s: %s", Client_ID( Client ), Req->argv[1] );
588 else Log( LOG_NOTICE, "Got SQUIT from %s for %s: %s", Client_ID( Client ), Client_ID( target ), Req->argv[1] );
590 /* FIXME: das SQUIT muss an alle Server weiter-
591 * geleitet werden ... */
593 if( Client_Conn( target ) > NONE )
595 Conn_Close( Client_Conn( target ), Req->argv[1] );
600 Client_Destroy( target );
606 GLOBAL BOOLEAN IRC_PING( CLIENT *Client, REQUEST *Req )
608 assert( Client != NULL );
609 assert( Req != NULL );
611 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
613 /* Falsche Anzahl Parameter? */
614 if( Req->argc < 1 ) return IRC_WriteStrClient( Client, ERR_NOORIGIN_MSG, Client_ID( Client ));
615 if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
617 return IRC_WriteStrClient( Client, "PONG %s :%s", Client_ID( Client_ThisServer( )), Client_ID( Client ));
621 GLOBAL BOOLEAN IRC_PONG( 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 > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
632 /* Der Connection-Timestamp wurde schon beim Lesen aus dem Socket
633 * aktualisiert, daher muss das hier nicht mehr gemacht werden. */
635 Log( LOG_DEBUG, "Connection %d: received PONG.", Client_Conn( Client ));
640 GLOBAL BOOLEAN IRC_MOTD( CLIENT *Client, REQUEST *Req )
642 assert( Client != NULL );
643 assert( Req != NULL );
645 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
647 /* Falsche Anzahl Parameter? */
648 if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
650 return Show_MOTD( Client );
654 GLOBAL BOOLEAN IRC_PRIVMSG( CLIENT *Client, REQUEST *Req )
658 assert( Client != NULL );
659 assert( Req != NULL );
661 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
663 /* Falsche Anzahl Parameter? */
664 if( Req->argc == 0 ) return IRC_WriteStrClient( Client, ERR_NORECIPIENT_MSG, Client_ID( Client ), Req->command );
665 if( Req->argc == 1 ) return IRC_WriteStrClient( Client, ERR_NOTEXTTOSEND_MSG, Client_ID( Client ));
666 if( Req->argc > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
668 if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_GetFromID( Req->prefix );
671 to = Client_Search( Req->argv[0] );
674 /* Okay, Ziel ist ein User */
675 if( Client_Conn( from ) >= 0 ) Conn_UpdateIdle( Client_Conn( from ));
676 return IRC_WriteStrClientPrefix( to, from, "PRIVMSG %s :%s", Client_ID( to ), Req->argv[1] );
678 else return IRC_WriteStrClient( from, ERR_NOSUCHNICK_MSG, Client_ID( from ), Req->argv[0] );
682 GLOBAL BOOLEAN IRC_NOTICE( CLIENT *Client, REQUEST *Req )
686 assert( Client != NULL );
687 assert( Req != NULL );
689 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
691 /* Falsche Anzahl Parameter? */
692 if( Req->argc != 2 ) return CONNECTED;
694 if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_GetFromID( Req->prefix );
697 to = Client_Search( Req->argv[0] );
700 /* Okay, Ziel ist ein User */
701 return IRC_WriteStrClientPrefix( to, from, "NOTICE %s :%s", Client_ID( to ), Req->argv[1] );
703 else return CONNECTED;
707 GLOBAL BOOLEAN IRC_MODE( CLIENT *Client, REQUEST *Req )
709 CHAR x[2], new_modes[CLIENT_MODE_LEN], *ptr;
713 assert( Client != NULL );
714 assert( Req != NULL );
716 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
718 /* Falsche Anzahl Parameter? */
719 if(( Req->argc > 2 ) || ( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
721 /* "Ziel-Client" suchen */
722 target = Client_Search( Req->argv[0] );
724 /* Wer ist der Anfragende? */
725 if( Client_Type( Client ) == CLIENT_USER )
727 /* User: MODE ist nur fuer sich selber zulaessig */
728 if( target != Client ) return IRC_WriteStrClient( Client, ERR_USERSDONTMATCH_MSG, Client_ID( Client ));
732 /* Server: gibt es den Client ueberhaupt? */
733 if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[0] );
736 /* Werden die Modes erfragt? */
737 if( Req->argc == 1 ) return IRC_WriteStrClient( Client, RPL_UMODEIS_MSG, Client_ID( Client ), Client_Modes( Client ));
741 /* Sollen Modes gesetzt oder geloescht werden? */
742 if( *ptr == '+' ) set = TRUE;
743 else if( *ptr == '-' ) set = FALSE;
744 else return IRC_WriteStrClient( Client, ERR_UMODEUNKNOWNFLAG_MSG, Client_ID( Client ));
746 /* Reply-String mit Aenderungen vorbereiten */
747 if( set ) strcpy( new_modes, "+" );
748 else strcpy( new_modes, "-" );
756 if( Client_Type( Client ) == CLIENT_SERVER )
770 /* restricted (kann nur gesetzt werden) */
771 if( set ) x[0] = 'r';
772 else ok = IRC_WriteStrClient( target, ERR_RESTRICTED_MSG, Client_ID( target ));
775 /* operator (kann nur geloescht werden) */
778 Client_SetOperByMe( target, FALSE );
781 else ok = IRC_WriteStrClient( target, ERR_UMODEUNKNOWNFLAG_MSG, Client_ID( target ));
784 ok = IRC_WriteStrClient( target, ERR_UMODEUNKNOWNFLAG_MSG, Client_ID( target ));
791 if( ! x[0] ) continue;
793 /* Okay, gueltigen Mode gefunden */
796 /* Mode setzen. Wenn der Client ihn noch nicht hatte: merken */
797 if( Client_ModeAdd( target, x[0] )) strcat( new_modes, x );
801 /* Modes geloescht. Wenn der Client ihn hatte: merken */
802 if( Client_ModeDel( target, x[0] )) strcat( new_modes, x );
806 /* Geanderte Modes? */
809 if( Client_Type( Client ) == CLIENT_SERVER )
811 /* Modes an andere Server forwarden */
816 /* Bestaetigung an Client schicken */
817 ok = IRC_WriteStrRelated( Client, "MODE %s :%s", Client_ID( target ), new_modes );
819 Log( LOG_DEBUG, "User \"%s\": Mode change, now \"%s\".", Client_Mask( target ), Client_Modes( target ));
825 GLOBAL BOOLEAN IRC_OPER( CLIENT *Client, REQUEST *Req )
829 assert( Client != NULL );
830 assert( Req != NULL );
832 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
834 /* Falsche Anzahl Parameter? */
835 if( Req->argc != 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
837 /* Operator suchen */
838 for( i = 0; i < Conf_Oper_Count; i++)
840 if( Conf_Oper[i].name[0] && Conf_Oper[i].pwd[0] && ( strcmp( Conf_Oper[i].name, Req->argv[0] ) == 0 )) break;
842 if( i >= Conf_Oper_Count ) return IRC_WriteStrClient( Client, ERR_PASSWDMISMATCH_MSG, Client_ID( Client ));
844 /* Stimmt der Name und das Passwort? */
845 if(( strcmp( Conf_Oper[i].name, Req->argv[0] ) != 0 ) || ( strcmp( Conf_Oper[i].pwd, Req->argv[1] ) != 0 )) return IRC_WriteStrClient( Client, ERR_PASSWDMISMATCH_MSG, Client_ID( Client ));
847 if( ! Client_HasMode( Client, 'o' ))
849 /* noch kein o-Mode gesetzt */
850 Client_ModeAdd( Client, 'o' );
851 if( ! IRC_WriteStrRelated( Client, "MODE %s :+o", Client_ID( Client ))) return DISCONNECTED;
854 if( ! Client_OperByMe( Client )) Log( LOG_NOTICE, "User \"%s\" is now an IRC Operator.", Client_Mask( Client ));
856 Client_SetOperByMe( Client, TRUE );
857 return IRC_WriteStrClient( Client, RPL_YOUREOPER_MSG, Client_ID( Client ));
861 GLOBAL BOOLEAN IRC_DIE( CLIENT *Client, REQUEST *Req )
863 assert( Client != NULL );
864 assert( Req != NULL );
866 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
868 /* Falsche Anzahl Parameter? */
869 if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
871 if(( ! Client_HasMode( Client, 'o' )) || ( ! Client_OperByMe( Client ))) return IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client ));
873 Log( LOG_NOTICE, "Got DIE command from \"%s\", going down!", Client_Mask( Client ));
879 GLOBAL BOOLEAN IRC_RESTART( CLIENT *Client, REQUEST *Req )
881 assert( Client != NULL );
882 assert( Req != NULL );
884 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
886 /* Falsche Anzahl Parameter? */
887 if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
889 if(( ! Client_HasMode( Client, 'o' )) || ( ! Client_OperByMe( Client ))) return IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client ));
891 Log( LOG_NOTICE, "Got RESTART command from \"%s\", going down!", Client_Mask( Client ));
892 NGIRCd_Restart = TRUE;
897 GLOBAL BOOLEAN IRC_NAMES( CLIENT *Client, REQUEST *Req )
899 CHAR rpl[COMMAND_LEN];
902 assert( Client != NULL );
903 assert( Req != NULL );
905 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
907 /* Falsche Anzahl Parameter? */
908 if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
910 /* Noch alle User ausgeben, die in keinem Channel sind */
915 if( Client_Type( c ) == CLIENT_USER )
917 /* Okay, das ist ein User */
918 strcat( rpl, Client_ID( c ));
922 /* Antwort zu lang? Splitten. */
923 if( strlen( rpl ) > 480 )
925 if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0';
926 if( ! IRC_WriteStrClient( Client, RPL_NAMREPLY_MSG, Client_ID( Client ), "*", "*", rpl )) return DISCONNECTED;
930 c = Client_Next( c );
934 /* es wurden User gefunden */
935 if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0';
936 if( ! IRC_WriteStrClient( Client, RPL_NAMREPLY_MSG, Client_ID( Client ), "*", "*", rpl )) return DISCONNECTED;
938 return IRC_WriteStrClient( Client, RPL_ENDOFNAMES_MSG, Client_ID( Client ), "*" );
942 GLOBAL BOOLEAN IRC_ISON( CLIENT *Client, REQUEST *Req )
944 CHAR rpl[COMMAND_LEN];
949 assert( Client != NULL );
950 assert( Req != NULL );
952 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
954 /* Falsche Anzahl Parameter? */
955 if(( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
957 strcpy( rpl, RPL_ISON_MSG );
958 for( i = 0; i < Req->argc; i++ )
960 ptr = strtok( Req->argv[i], " " );
964 c = Client_GetFromID( ptr );
965 if( c && ( Client_Type( c ) == CLIENT_USER ))
967 /* Dieser Nick ist "online" */
971 ptr = strtok( NULL, " " );
974 if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0';
976 return IRC_WriteStrClient( Client, rpl, Client_ID( Client ) );
980 GLOBAL BOOLEAN IRC_WHOIS( CLIENT *Client, REQUEST *Req )
982 CLIENT *from, *target, *c;
984 assert( Client != NULL );
985 assert( Req != NULL );
987 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
989 /* Falsche Anzahl Parameter? */
990 if(( Req->argc < 1 ) || ( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
993 c = Client_GetFromID( Req->argv[Req->argc - 1] );
994 if(( ! c ) || ( Client_Type( c ) != CLIENT_USER )) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[Req->argc - 1] );
996 /* Empfaenger des WHOIS suchen */
997 if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_GetFromID( Req->prefix );
999 if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
1001 /* Forwarden an anderen Server? */
1004 /* Ziel-Server suchen */
1005 target = Client_GetFromID( Req->argv[1] );
1006 if( ! target ) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[1] );
1007 else return IRC_WriteStrClientPrefix( target, from, "WHOIS %s :%s", Req->argv[0], Req->argv[1] );
1010 /* Nick, User und Name */
1011 if( ! IRC_WriteStrClient( from, RPL_WHOISUSER_MSG, Client_ID( from ), Client_ID( c ), Client_User( c ), Client_Hostname( c ), Client_Info( c ))) return DISCONNECTED;
1014 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;
1017 if( Client_HasMode( c, 'o' ))
1019 if( ! IRC_WriteStrClient( from, RPL_WHOISOPERATOR_MSG, Client_ID( from ), Client_ID( c ))) return DISCONNECTED;
1022 /* Idle (nur lokale Clients) */
1023 if( Client_Conn( c ) > NONE )
1025 if( ! IRC_WriteStrClient( from, RPL_WHOISIDLE_MSG, Client_ID( from ), Client_ID( c ), Conn_GetIdle( Client_Conn ( c )))) return DISCONNECTED;
1029 return IRC_WriteStrClient( from, RPL_ENDOFWHOIS_MSG, Client_ID( from ), Client_ID( c ));
1033 GLOBAL BOOLEAN IRC_USERHOST( CLIENT *Client, REQUEST *Req )
1035 CHAR rpl[COMMAND_LEN];
1039 assert( Client != NULL );
1040 assert( Req != NULL );
1042 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
1044 /* Falsche Anzahl Parameter? */
1045 if(( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
1047 if( Req->argc > 5 ) max = 5;
1048 else max = Req->argc;
1050 strcpy( rpl, RPL_USERHOST_MSG );
1051 for( i = 0; i < max; i++ )
1053 c = Client_GetFromID( Req->argv[i] );
1054 if( c && ( Client_Type( c ) == CLIENT_USER ))
1056 /* Dieser Nick ist "online" */
1057 strcat( rpl, Client_ID( c ));
1058 if( Client_HasMode( c, 'o' )) strcat( rpl, "*" );
1060 if( Client_HasMode( c, 'a' )) strcat( rpl, "-" );
1061 else strcat( rpl, "+" );
1062 strcat( rpl, Client_User( c ));
1064 strcat( rpl, Client_Hostname( c ));
1068 if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0';
1070 return IRC_WriteStrClient( Client, rpl, Client_ID( Client ) );
1071 } /* IRC_USERHOST */
1074 GLOBAL BOOLEAN IRC_ERROR( CLIENT *Client, REQUEST *Req )
1076 assert( Client != NULL );
1077 assert( Req != NULL );
1079 if( Req->argc < 1 ) Log( LOG_NOTICE, "Got ERROR from \"%s\"!", Client_Mask( Client ));
1080 else Log( LOG_NOTICE, "Got ERROR from \"%s\": %s!", Client_Mask( Client ), Req->argv[0] );
1086 LOCAL BOOLEAN Hello_User( CLIENT *Client )
1088 assert( Client != NULL );
1090 /* Passwort ueberpruefen */
1091 if( strcmp( Client_Password( Client ), Conf_ServerPwd ) != 0 )
1093 /* Falsches Passwort */
1094 Log( LOG_ALERT, "User \"%s\" rejected (connection %d): Bad password!", Client_Mask( Client ), Client_Conn( Client ));
1095 Conn_Close( Client_Conn( Client ), "Bad password!" );
1096 return DISCONNECTED;
1099 Log( LOG_NOTICE, "User \"%s\" registered (connection %d).", Client_Mask( Client ), Client_Conn( Client ));
1101 /* Andere Server informieren */
1102 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 ));
1104 if( ! IRC_WriteStrClient( Client, RPL_WELCOME_MSG, Client_ID( Client ), Client_Mask( Client ))) return FALSE;
1105 if( ! IRC_WriteStrClient( Client, RPL_YOURHOST_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( )))) return FALSE;
1106 if( ! IRC_WriteStrClient( Client, RPL_CREATED_MSG, Client_ID( Client ), NGIRCd_StartStr )) return FALSE;
1107 if( ! IRC_WriteStrClient( Client, RPL_MYINFO_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( )))) return FALSE;
1109 Client_SetType( Client, CLIENT_USER );
1111 return Show_MOTD( Client );
1115 LOCAL BOOLEAN Show_MOTD( CLIENT *Client )
1121 assert( Client != NULL );
1123 fd = fopen( Conf_MotdFile, "r" );
1126 Log( LOG_WARNING, "Can't read MOTD file \"%s\": %s", Conf_MotdFile, strerror( errno ));
1127 return IRC_WriteStrClient( Client, ERR_NOMOTD_MSG, Client_ID( Client ) );
1130 IRC_WriteStrClient( Client, RPL_MOTDSTART_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( )));
1133 if( ! fgets( line, 126, fd )) break;
1134 if( line[strlen( line ) - 1] == '\n' ) line[strlen( line ) - 1] = '\0';
1135 if( ! IRC_WriteStrClient( Client, RPL_MOTD_MSG, Client_ID( Client ), line ))
1141 ok = IRC_WriteStrClient( Client, RPL_ENDOFMOTD_MSG, Client_ID( Client ) );
1149 LOCAL VOID Kill_Nick( CHAR *Nick )
1151 Log( LOG_ALERT, "User(s) with nick \"%s\" will be disconnected!", Nick );
1153 Log( LOG_ALERT, "[Kill_Nick() not implemented - OOOPS!]" );