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 1.28 2002/01/05 20:08:02 alex Exp $
17 * Revision 1.28 2002/01/05 20:08:02 alex
18 * - Div. Aenderungen fuer die Server-Links (u.a. WHOIS, QUIT, NICK angepasst).
19 * - Neue Funktionen IRC_WriteStrServer() und IRC_WriteStrServerPrefix().
21 * Revision 1.27 2002/01/05 19:15:03 alex
22 * - Fehlerpruefung bei select() in der "Hauptschleife" korrigiert.
24 * Revision 1.26 2002/01/05 16:51:18 alex
25 * - das Passwort von Servern wird nun ueberprueft (PASS- und SERVER-Befehl).
27 * Revision 1.25 2002/01/05 00:48:33 alex
28 * - bei SQUIT wurde immer die Verbindung getrennt, auch bei Remote-Servern.
30 * Revision 1.24 2002/01/04 17:58:44 alex
31 * - IRC_WriteStrXXX()-Funktionen eingefuehrt, groessere Anpassungen daran.
32 * - neuer Befehl SQUIT, QUIT an Server-Links angepasst.
34 * Revision 1.23 2002/01/04 01:36:40 alex
35 * - Loglevel ein wenig angepasst.
37 * Revision 1.22 2002/01/04 01:21:47 alex
38 * - Client-Strukruren werden nur noch ueber Funktionen angesprochen.
39 * - Weitere Anpassungen und Erweiterungen der Server-Links.
41 * Revision 1.21 2002/01/03 02:26:51 alex
42 * - neue Befehle SERVER und NJOIN begonnen,
43 * - begonnen, diverse IRC-Befehle an Server-Links anzupassen.
45 * Revision 1.20 2002/01/02 12:46:41 alex
46 * - die Gross- und Kleinschreibung des Nicks kann mit NICK nun geaendert werden.
48 * Revision 1.19 2002/01/02 02:51:39 alex
49 * - Copyright-Texte angepasst.
50 * - neuer Befehl "ERROR".
52 * Revision 1.17 2001/12/31 15:33:13 alex
53 * - neuer Befehl NAMES, kleinere Bugfixes.
54 * - Bug bei PING behoben: war zu restriktiv implementiert :-)
56 * Revision 1.16 2001/12/31 02:18:51 alex
57 * - viele neue Befehle (WHOIS, ISON, OPER, DIE, RESTART),
58 * - neuen Header "defines.h" mit (fast) allen Konstanten.
59 * - Code Cleanups und viele "kleine" Aenderungen & Bugfixes.
61 * Revision 1.15 2001/12/30 19:26:11 alex
62 * - Unterstuetzung fuer die Konfigurationsdatei eingebaut.
64 * Revision 1.14 2001/12/30 11:42:00 alex
65 * - der Server meldet nun eine ordentliche "Start-Zeit".
67 * Revision 1.13 2001/12/29 03:10:06 alex
68 * - Neue Funktion IRC_MODE() implementiert, div. Aenderungen.
69 * - neue configure-Optione "--enable-strict-rfc".
71 * Revision 1.12 2001/12/27 19:17:26 alex
72 * - neue Befehle PRIVMSG, NOTICE, PING.
74 * Revision 1.11 2001/12/27 16:55:41 alex
75 * - neu: IRC_WriteStrRelated(), Aenderungen auch in IRC_WriteStrClient().
77 * Revision 1.10 2001/12/26 22:48:53 alex
78 * - MOTD-Datei ist nun konfigurierbar und wird gelesen.
80 * Revision 1.9 2001/12/26 14:45:37 alex
83 * Revision 1.8 2001/12/26 03:21:46 alex
84 * - PING/PONG-Befehle implementiert,
85 * - Meldungen ueberarbeitet: enthalten nun (fast) immer den Nick.
87 * Revision 1.7 2001/12/25 23:25:18 alex
88 * - und nochmal Aenderungen am Logging ;-)
90 * Revision 1.6 2001/12/25 23:13:33 alex
91 * - Debug-Meldungen angepasst.
93 * Revision 1.5 2001/12/25 22:02:42 alex
94 * - neuer IRC-Befehl "/QUIT". Verbessertes Logging & Debug-Ausgaben.
96 * Revision 1.4 2001/12/25 19:19:30 alex
97 * - bessere Fehler-Abfragen, diverse Bugfixes.
98 * - Nicks werden nur einmal vergeben :-)
99 * - /MOTD wird unterstuetzt.
101 * Revision 1.3 2001/12/24 01:34:06 alex
102 * - USER und NICK wird nun in beliebiger Reihenfolge akzeptiert (wg. BitchX)
103 * - MOTD-Ausgabe begonnen zu implementieren.
105 * Revision 1.2 2001/12/23 21:57:16 alex
106 * - erste IRC-Befehle zu implementieren begonnen.
108 * Revision 1.1 2001/12/14 08:13:43 alex
109 * - neues Modul begonnen :-)
129 #include "messages.h"
137 #define CONNECTED TRUE
138 #define DISCONNECTED FALSE
141 LOCAL BOOLEAN Hello_User( CLIENT *Client );
142 LOCAL BOOLEAN Show_MOTD( CLIENT *Client );
144 LOCAL VOID Kill_Nick( CHAR *Nick );
147 GLOBAL VOID IRC_Init( VOID )
152 GLOBAL VOID IRC_Exit( VOID )
157 GLOBAL BOOLEAN IRC_WriteStrClient( CLIENT *Client, CHAR *Format, ... )
160 BOOLEAN ok = CONNECTED;
163 assert( Client != NULL );
164 assert( Format != NULL );
166 va_start( ap, Format );
167 vsnprintf( buffer, 1000, Format, ap );
170 /* an den Client selber */
171 ok = IRC_WriteStrClientPrefix( Client, Client_ThisServer( ), buffer );
174 } /* IRC_WriteStrClient */
177 GLOBAL BOOLEAN IRC_WriteStrClientPrefix( CLIENT *Client, CLIENT *Prefix, CHAR *Format, ... )
179 /* Text an Clients, lokal bzw. remote, senden. */
184 assert( Client != NULL );
185 assert( Format != NULL );
186 assert( Prefix != NULL );
188 va_start( ap, Format );
189 vsnprintf( buffer, 1000, Format, ap );
192 return Conn_WriteStr( Client_Conn( Client_NextHop( Client )), ":%s %s", Client_ID( Prefix ), buffer );
193 } /* IRC_WriteStrClientPrefix */
196 GLOBAL BOOLEAN IRC_WriteStrRelated( CLIENT *Client, CHAR *Format, ... )
199 BOOLEAN ok = CONNECTED;
202 assert( Client != NULL );
203 assert( Format != NULL );
205 va_start( ap, Format );
206 vsnprintf( buffer, 1000, Format, ap );
209 /* an den Client selber */
210 ok = IRC_WriteStrClient( Client, buffer );
215 } /* IRC_WriteStrRelated */
218 GLOBAL VOID IRC_WriteStrServers( CLIENT *ExceptOf, CHAR *Format, ... )
223 assert( Format != NULL );
225 va_start( ap, Format );
226 vsnprintf( buffer, 1000, Format, ap );
229 /* an den Client selber */
230 return IRC_WriteStrServersPrefix( ExceptOf, Client_ThisServer( ), buffer );
231 } /* IRC_WriteStrServers */
234 GLOBAL VOID IRC_WriteStrServersPrefix( CLIENT *ExceptOf, CLIENT *Prefix, CHAR *Format, ... )
240 assert( Format != NULL );
241 assert( Prefix != NULL );
243 va_start( ap, Format );
244 vsnprintf( buffer, 1000, Format, ap );
250 if(( Client_Type( c ) == CLIENT_SERVER ) && ( Client_Conn( c ) > NONE ) && ( c != Client_ThisServer( )) && ( c != ExceptOf ))
252 /* Ziel-Server gefunden */
253 IRC_WriteStrClientPrefix( c, Prefix, buffer );
255 c = Client_Next( c );
257 } /* IRC_WriteStrServersPrefix */
260 GLOBAL BOOLEAN IRC_PASS( CLIENT *Client, REQUEST *Req )
262 assert( Client != NULL );
263 assert( Req != NULL );
265 /* Fehler liefern, wenn kein lokaler Client */
266 if( Client_Conn( Client ) <= NONE ) return IRC_WriteStrClient( Client, ERR_UNKNOWNCOMMAND_MSG, Client_ID( Client ), Req->command );
268 if(( Client_Type( Client ) == CLIENT_UNKNOWN ) && ( Req->argc == 1))
270 /* noch nicht registrierte unbekannte Verbindung */
271 Log( LOG_DEBUG, "Connection %d: got PASS command ...", Client_Conn( Client ));
273 /* Passwort speichern */
274 Client_SetPassword( Client, Req->argv[0] );
276 Client_SetType( Client, CLIENT_GOTPASS );
279 else if((( Client_Type( Client ) == CLIENT_UNKNOWN ) || ( Client_Type( Client ) == CLIENT_UNKNOWNSERVER )) && (( Req->argc == 3 ) || ( Req->argc == 4 )))
281 /* noch nicht registrierte Server-Verbindung */
282 Log( LOG_DEBUG, "Connection %d: got PASS command (new server link) ...", Client_Conn( Client ));
284 /* Passwort speichern */
285 Client_SetPassword( Client, Req->argv[0] );
287 Client_SetType( Client, CLIENT_GOTPASSSERVER );
290 else if(( Client_Type( Client ) == CLIENT_UNKNOWN ) || ( Client_Type( Client ) == CLIENT_UNKNOWNSERVER ))
292 /* Falsche Anzahl Parameter? */
293 return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
295 else return IRC_WriteStrClient( Client, ERR_ALREADYREGISTRED_MSG, Client_ID( Client ));
299 GLOBAL BOOLEAN IRC_SERVER( CLIENT *Client, REQUEST *Req )
301 CHAR str[LINE_LEN], *ptr;
305 assert( Client != NULL );
306 assert( Req != NULL );
308 /* Fehler liefern, wenn kein lokaler Client */
309 if( Client_Conn( Client ) <= NONE ) return IRC_WriteStrClient( Client, ERR_UNKNOWNCOMMAND_MSG, Client_ID( Client ), Req->command );
311 if( Client_Type( Client ) == CLIENT_GOTPASSSERVER )
313 /* Verbindung soll als Server-Server-Verbindung registriert werden */
314 Log( LOG_DEBUG, "Connection %d: got SERVER command (new server link) ...", Client_Conn( Client ));
316 /* Falsche Anzahl Parameter? */
317 if( Req->argc != 3 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
319 /* Ist dieser Server bei uns konfiguriert? */
320 for( i = 0; i < Conf_Server_Count; i++ ) if( strcasecmp( Req->argv[0], Conf_Server[i].name ) == 0 ) break;
321 if( i >= Conf_Server_Count )
323 /* Server ist nicht konfiguriert! */
324 Log( LOG_ALERT, "Connection %d: Server \"%s\" not configured here!", Client_Conn( Client ), Req->argv[0] );
325 Conn_Close( Client_Conn( Client ), "Server not configured here!" );
328 if( strcmp( Client_Password( Client ), Conf_Server[i].pwd ) != 0 )
330 /* Falsches Passwort */
331 Log( LOG_ALERT, "Connection %d: Bad password for server \"%s\"!", Client_Conn( Client ), Req->argv[0] );
332 Conn_Close( Client_Conn( Client ), "Bad password!" );
336 /* Ist ein Server mit dieser ID bereits registriert? */
337 if( ! Client_CheckID( Client, Req->argv[0] )) return DISCONNECTED;
339 /* Server-Strukturen fuellen ;-) */
340 Client_SetID( Client, Req->argv[0] );
341 Client_SetToken( Client, atoi( Req->argv[1] ));
342 Client_SetInfo( Client, Req->argv[2] );
343 Client_SetHops( Client, 1 );
345 Log( LOG_NOTICE, "Server \"%s\" registered (connection %d, 1 hop - direct link).", Client_ID( Client ), Client_Conn( Client ));
347 Client_SetType( Client, CLIENT_SERVER );
350 else if( Client_Type( Client ) == CLIENT_SERVER )
352 /* Neuer Server wird im Netz angekuendigt */
354 /* Falsche Anzahl Parameter? */
355 if( Req->argc != 4 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
357 /* Ist ein Server mit dieser ID bereits registriert? */
358 if( ! Client_CheckID( Client, Req->argv[0] )) return DISCONNECTED;
360 /* Ueberfluessige Hostnamen aus Info-Text entfernen */
361 ptr = strchr( Req->argv[3] + 2, '[' );
362 if( ! ptr ) ptr = Req->argv[3];
364 /* Neue Client-Struktur anlegen */
365 c = Client_NewRemoteServer( Client, Req->argv[0], atoi( Req->argv[1] ), atoi( Req->argv[2] ), ptr );
368 /* Neue Client-Struktur konnte nicht angelegt werden */
369 Log( LOG_ALERT, "Can't allocate client structure for server! (on connection %d)", Client_Conn( Client ));
370 Conn_Close( Client_Conn( Client ), "Can't allocate client structure for remote server!" );
374 /* Log-Meldung zusammenbauen und ausgeben */
375 if(( Client_Hops( c ) > 1 ) && ( Req->prefix[0] )) sprintf( str, "connected to %s, ", Req->prefix );
376 else strcpy( str, "" );
377 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": "" );
381 else return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
385 GLOBAL BOOLEAN IRC_NJOIN( CLIENT *Client, REQUEST *Req )
387 assert( Client != NULL );
388 assert( Req != NULL );
390 if( Client_Type( Client ) != CLIENT_SERVER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTEREDSERVER_MSG, Client_ID( Client ));
396 GLOBAL BOOLEAN IRC_NICK( CLIENT *Client, REQUEST *Req )
400 assert( Client != NULL );
401 assert( Req != NULL );
403 /* Zumindest BitchX sendet NICK-USER in der falschen Reihenfolge. */
405 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 )
407 if( Client_Type( Client ) == CLIENT_UNKNOWN || Client_Type( Client ) == CLIENT_GOTPASS || Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_USER )
410 /* User-Registrierung bzw. Nick-Aenderung */
412 /* Falsche Anzahl Parameter? */
413 if( Req->argc != 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
415 /* Ist der Client "restricted"? */
416 if( Client_HasMode( Client, 'r' )) return IRC_WriteStrClient( Client, ERR_RESTRICTED_MSG, Client_ID( Client ));
418 /* Wenn der Client zu seinem eigenen Nick wechseln will, so machen
419 * wir nichts. So macht es das Original und mind. Snak hat probleme,
420 * wenn wir es nicht so machen. Ob es so okay ist? Hm ... */
422 if( strcmp( Client_ID( Client ), Req->argv[0] ) == 0 ) return CONNECTED;
425 /* pruefen, ob Nick bereits vergeben. Speziallfall: der Client
426 * will nur die Gross- und Kleinschreibung aendern. Das darf
427 * er natuerlich machen :-) */
428 if( strcasecmp( Client_ID( Client ), Req->argv[0] ) != 0 )
430 if( ! Client_CheckNick( Client, Req->argv[0] )) return CONNECTED;
433 if( Client_Type( Client ) == CLIENT_USER )
435 /* Nick-Aenderung: allen mitteilen! */
436 Log( LOG_INFO, "User \"%s\" changed nick: \"%s\" -> \"%s\".", Client_Mask( Client ), Client_ID( Client ), Req->argv[0] );
437 IRC_WriteStrRelated( Client, "NICK :%s", Req->argv[0] );
440 /* Client-Nick registrieren */
441 Client_SetID( Client, Req->argv[0] );
443 if( Client_Type( Client ) != CLIENT_USER )
446 Log( LOG_DEBUG, "Connection %d: got NICK command ...", Client_Conn( Client ));
447 if( Client_Type( Client ) == CLIENT_GOTUSER ) return Hello_User( Client );
448 else Client_SetType( Client, CLIENT_GOTNICK );
452 else if( Client_Type( Client ) == CLIENT_SERVER )
454 /* Server fuehrt neuen Client ein */
456 /* Falsche Anzahl Parameter? */
457 if( Req->argc != 7 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
459 /* Nick ueberpruefen */
460 c = Client_GetFromID( Req->argv[0] );
463 /* Der neue Nick ist auf diesem Server bereits registriert:
464 * sowohl der neue, als auch der alte Client muessen nun
465 * disconnectiert werden. */
466 Log( LOG_ALERT, "Server %s introduces already registered nick %s!", Client_ID( Client ), Req->argv[0] );
467 Kill_Nick( Req->argv[0] );
471 /* Server, zu dem der Client connectiert ist, suchen */
472 intr_c = Client_GetFromToken( Client, atoi( Req->argv[4] ));
475 Log( LOG_ALERT, "Server %s introduces nick %s with unknown host server!?", Client_ID( Client ), Req->argv[0] );
476 Kill_Nick( Req->argv[0] );
480 /* Neue Client-Struktur anlegen */
481 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] );
484 /* Eine neue Client-Struktur konnte nicht angelegt werden.
485 * Der Client muss disconnectiert werden, damit der Netz-
486 * status konsistent bleibt. */
487 Log( LOG_ALERT, "Can't allocate client structure! (on connection %d)", Client_Conn( Client ));
488 Kill_Nick( Req->argv[0] );
492 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": "" );
496 else return IRC_WriteStrClient( Client, ERR_ALREADYREGISTRED_MSG, Client_ID( Client ));
500 GLOBAL BOOLEAN IRC_USER( CLIENT *Client, REQUEST *Req )
502 assert( Client != NULL );
503 assert( Req != NULL );
506 if( Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_GOTPASS || Client_Type( Client ) == CLIENT_UNKNOWN )
508 if( Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_GOTPASS )
511 /* Falsche Anzahl Parameter? */
512 if( Req->argc != 4 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
514 Client_SetUser( Client, Req->argv[0] );
515 Client_SetInfo( Client, Req->argv[3] );
517 Log( LOG_DEBUG, "Connection %d: got USER command ...", Client_Conn( Client ));
518 if( Client_Type( Client ) == CLIENT_GOTNICK ) return Hello_User( Client );
519 else Client_SetType( Client, CLIENT_GOTUSER );
522 else if( Client_Type( Client ) == CLIENT_USER || Client_Type( Client ) == CLIENT_SERVER || Client_Type( Client ) == CLIENT_SERVICE )
524 return IRC_WriteStrClient( Client, ERR_ALREADYREGISTRED_MSG, Client_ID( Client ));
526 else return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
530 GLOBAL BOOLEAN IRC_QUIT( CLIENT *Client, REQUEST *Req )
534 assert( Client != NULL );
535 assert( Req != NULL );
537 if(( Client_Type( Client ) == CLIENT_USER ) || ( Client_Type( Client ) == CLIENT_SERVICE ))
541 /* Falsche Anzahl Parameter? */
542 if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
544 Conn_Close( Client_Conn( Client ), "Client wants to quit." );
547 else if ( Client_Type( Client ) == CLIENT_SERVER )
551 /* Falsche Anzahl Parameter? */
552 if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
554 target = Client_Search( Req->prefix );
555 if( ! target ) Log( LOG_ALERT, "Got QUIT from %s for unknown server!?", Client_ID( Client ));
556 else Client_Destroy( target );
559 else return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
563 GLOBAL BOOLEAN IRC_SQUIT( CLIENT *Client, REQUEST *Req )
567 assert( Client != NULL );
568 assert( Req != NULL );
570 /* SQUIT ist nur fuer Server erlaubt */
571 if( Client_Type( Client ) != CLIENT_SERVER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
573 /* Falsche Anzahl Parameter? */
574 if( Req->argc != 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
576 target = Client_GetFromID( Req->argv[0] );
579 Log( LOG_ALERT, "Got SQUIT from %s for unknown server \%s\"!?", Client_ID( Client ), Req->argv[0] );
583 if( target == Client ) Log( LOG_NOTICE, "Got SQUIT from %s: %s", Client_ID( Client ), Req->argv[1] );
584 else Log( LOG_NOTICE, "Got SQUIT from %s for %s: %s", Client_ID( Client ), Client_ID( target ), Req->argv[1] );
586 /* FIXME: das SQUIT muss an alle Server weiter-
587 * geleitet werden ... */
589 if( Client_Conn( target ) > NONE )
591 Conn_Close( Client_Conn( target ), Req->argv[1] );
596 Client_Destroy( target );
602 GLOBAL BOOLEAN IRC_PING( CLIENT *Client, REQUEST *Req )
604 assert( Client != NULL );
605 assert( Req != NULL );
607 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
609 /* Falsche Anzahl Parameter? */
610 if( Req->argc < 1 ) return IRC_WriteStrClient( Client, ERR_NOORIGIN_MSG, Client_ID( Client ));
611 if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
613 return IRC_WriteStrClient( Client, "PONG %s :%s", Client_ID( Client_ThisServer( )), Client_ID( Client ));
617 GLOBAL BOOLEAN IRC_PONG( CLIENT *Client, REQUEST *Req )
619 assert( Client != NULL );
620 assert( Req != NULL );
622 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
624 /* Falsche Anzahl Parameter? */
625 if( Req->argc < 1 ) return IRC_WriteStrClient( Client, ERR_NOORIGIN_MSG, Client_ID( Client ));
626 if( Req->argc > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
628 /* Der Connection-Timestamp wurde schon beim Lesen aus dem Socket
629 * aktualisiert, daher muss das hier nicht mehr gemacht werden. */
631 Log( LOG_DEBUG, "Connection %d: received PONG.", Client_Conn( Client ));
636 GLOBAL BOOLEAN IRC_MOTD( CLIENT *Client, REQUEST *Req )
638 assert( Client != NULL );
639 assert( Req != NULL );
641 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
643 /* Falsche Anzahl Parameter? */
644 if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
646 return Show_MOTD( Client );
650 GLOBAL BOOLEAN IRC_PRIVMSG( CLIENT *Client, REQUEST *Req )
654 assert( Client != NULL );
655 assert( Req != NULL );
657 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
659 /* Falsche Anzahl Parameter? */
660 if( Req->argc == 0 ) return IRC_WriteStrClient( Client, ERR_NORECIPIENT_MSG, Client_ID( Client ), Req->command );
661 if( Req->argc == 1 ) return IRC_WriteStrClient( Client, ERR_NOTEXTTOSEND_MSG, Client_ID( Client ));
662 if( Req->argc > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
664 if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_GetFromID( Req->prefix );
667 to = Client_Search( Req->argv[0] );
670 /* Okay, Ziel ist ein User */
671 if( Client_Conn( from ) >= 0 ) Conn_UpdateIdle( Client_Conn( from ));
672 return IRC_WriteStrClientPrefix( to, from, "PRIVMSG %s :%s", Client_ID( to ), Req->argv[1] );
674 else return IRC_WriteStrClient( from, ERR_NOSUCHNICK_MSG, Client_ID( from ), Req->argv[0] );
678 GLOBAL BOOLEAN IRC_NOTICE( CLIENT *Client, REQUEST *Req )
682 assert( Client != NULL );
683 assert( Req != NULL );
685 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
687 /* Falsche Anzahl Parameter? */
688 if( Req->argc != 2 ) return CONNECTED;
690 if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_GetFromID( Req->prefix );
693 to = Client_Search( Req->argv[0] );
696 /* Okay, Ziel ist ein User */
697 return IRC_WriteStrClientPrefix( to, from, "NOTICE %s :%s", Client_ID( to ), Req->argv[1] );
699 else return CONNECTED;
703 GLOBAL BOOLEAN IRC_MODE( CLIENT *Client, REQUEST *Req )
705 CHAR x[2], new_modes[CLIENT_MODE_LEN], *ptr;
709 assert( Client != NULL );
710 assert( Req != NULL );
712 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
714 /* Falsche Anzahl Parameter? */
715 if(( Req->argc > 2 ) || ( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
717 /* "Ziel-Client" suchen */
718 target = Client_Search( Req->argv[0] );
720 /* Wer ist der Anfragende? */
721 if( Client_Type( Client ) == CLIENT_USER )
723 /* User: MODE ist nur fuer sich selber zulaessig */
724 if( target != Client ) return IRC_WriteStrClient( Client, ERR_USERSDONTMATCH_MSG, Client_ID( Client ));
728 /* Server: gibt es den Client ueberhaupt? */
729 if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[0] );
732 /* Werden die Modes erfragt? */
733 if( Req->argc == 1 ) return IRC_WriteStrClient( Client, RPL_UMODEIS_MSG, Client_ID( Client ), Client_Modes( Client ));
737 /* Sollen Modes gesetzt oder geloescht werden? */
738 if( *ptr == '+' ) set = TRUE;
739 else if( *ptr == '-' ) set = FALSE;
740 else return IRC_WriteStrClient( Client, ERR_UMODEUNKNOWNFLAG_MSG, Client_ID( Client ));
742 /* Reply-String mit Aenderungen vorbereiten */
743 if( set ) strcpy( new_modes, "+" );
744 else strcpy( new_modes, "-" );
752 if( Client_Type( Client ) == CLIENT_SERVER )
766 /* restricted (kann nur gesetzt werden) */
767 if( set ) x[0] = 'r';
768 else ok = IRC_WriteStrClient( target, ERR_RESTRICTED_MSG, Client_ID( target ));
771 /* operator (kann nur geloescht werden) */
774 Client_SetOperByMe( target, FALSE );
777 else ok = IRC_WriteStrClient( target, ERR_UMODEUNKNOWNFLAG_MSG, Client_ID( target ));
780 ok = IRC_WriteStrClient( target, ERR_UMODEUNKNOWNFLAG_MSG, Client_ID( target ));
787 if( ! x[0] ) continue;
789 /* Okay, gueltigen Mode gefunden */
792 /* Mode setzen. Wenn der Client ihn noch nicht hatte: merken */
793 if( Client_ModeAdd( target, x[0] )) strcat( new_modes, x );
797 /* Modes geloescht. Wenn der Client ihn hatte: merken */
798 if( Client_ModeDel( target, x[0] )) strcat( new_modes, x );
802 /* Geanderte Modes? */
805 if( Client_Type( Client ) == CLIENT_SERVER )
807 /* Modes an andere Server forwarden */
812 /* Bestaetigung an Client schicken */
813 ok = IRC_WriteStrRelated( Client, "MODE %s :%s", Client_ID( target ), new_modes );
815 Log( LOG_DEBUG, "User \"%s\": Mode change, now \"%s\".", Client_Mask( target ), Client_Modes( target ));
821 GLOBAL BOOLEAN IRC_OPER( CLIENT *Client, REQUEST *Req )
825 assert( Client != NULL );
826 assert( Req != NULL );
828 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
830 /* Falsche Anzahl Parameter? */
831 if( Req->argc != 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
833 /* Operator suchen */
834 for( i = 0; i < Conf_Oper_Count; i++)
836 if( Conf_Oper[i].name[0] && Conf_Oper[i].pwd[0] && ( strcmp( Conf_Oper[i].name, Req->argv[0] ) == 0 )) break;
838 if( i >= Conf_Oper_Count ) return IRC_WriteStrClient( Client, ERR_PASSWDMISMATCH_MSG, Client_ID( Client ));
840 /* Stimmt der Name und das Passwort? */
841 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 ));
843 if( ! Client_HasMode( Client, 'o' ))
845 /* noch kein o-Mode gesetzt */
846 Client_ModeAdd( Client, 'o' );
847 if( ! IRC_WriteStrRelated( Client, "MODE %s :+o", Client_ID( Client ))) return DISCONNECTED;
850 if( ! Client_OperByMe( Client )) Log( LOG_NOTICE, "User \"%s\" is now an IRC Operator.", Client_Mask( Client ));
852 Client_SetOperByMe( Client, TRUE );
853 return IRC_WriteStrClient( Client, RPL_YOUREOPER_MSG, Client_ID( Client ));
857 GLOBAL BOOLEAN IRC_DIE( CLIENT *Client, REQUEST *Req )
859 assert( Client != NULL );
860 assert( Req != NULL );
862 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
864 /* Falsche Anzahl Parameter? */
865 if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
867 if(( ! Client_HasMode( Client, 'o' )) || ( ! Client_OperByMe( Client ))) return IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client ));
869 Log( LOG_NOTICE, "Got DIE command from \"%s\", going down!", Client_Mask( Client ));
875 GLOBAL BOOLEAN IRC_RESTART( CLIENT *Client, REQUEST *Req )
877 assert( Client != NULL );
878 assert( Req != NULL );
880 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
882 /* Falsche Anzahl Parameter? */
883 if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
885 if(( ! Client_HasMode( Client, 'o' )) || ( ! Client_OperByMe( Client ))) return IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client ));
887 Log( LOG_NOTICE, "Got RESTART command from \"%s\", going down!", Client_Mask( Client ));
888 NGIRCd_Restart = TRUE;
893 GLOBAL BOOLEAN IRC_NAMES( CLIENT *Client, REQUEST *Req )
895 CHAR rpl[COMMAND_LEN];
898 assert( Client != NULL );
899 assert( Req != NULL );
901 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
903 /* Falsche Anzahl Parameter? */
904 if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
906 /* Noch alle User ausgeben, die in keinem Channel sind */
911 if( Client_Type( c ) == CLIENT_USER )
913 /* Okay, das ist ein User */
914 strcat( rpl, Client_ID( c ));
918 /* Antwort zu lang? Splitten. */
919 if( strlen( rpl ) > 480 )
921 if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0';
922 if( ! IRC_WriteStrClient( Client, RPL_NAMREPLY_MSG, Client_ID( Client ), "*", "*", rpl )) return DISCONNECTED;
926 c = Client_Next( c );
930 /* es wurden User gefunden */
931 if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0';
932 if( ! IRC_WriteStrClient( Client, RPL_NAMREPLY_MSG, Client_ID( Client ), "*", "*", rpl )) return DISCONNECTED;
934 return IRC_WriteStrClient( Client, RPL_ENDOFNAMES_MSG, Client_ID( Client ), "*" );
938 GLOBAL BOOLEAN IRC_ISON( CLIENT *Client, REQUEST *Req )
940 CHAR rpl[COMMAND_LEN];
945 assert( Client != NULL );
946 assert( Req != NULL );
948 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
950 /* Falsche Anzahl Parameter? */
951 if(( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
953 strcpy( rpl, RPL_ISON_MSG );
954 for( i = 0; i < Req->argc; i++ )
956 ptr = strtok( Req->argv[i], " " );
960 c = Client_GetFromID( ptr );
961 if( c && ( Client_Type( c ) == CLIENT_USER ))
963 /* Dieser Nick ist "online" */
967 ptr = strtok( NULL, " " );
970 if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0';
972 return IRC_WriteStrClient( Client, rpl, Client_ID( Client ) );
976 GLOBAL BOOLEAN IRC_WHOIS( CLIENT *Client, REQUEST *Req )
980 assert( Client != NULL );
981 assert( Req != NULL );
983 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
985 /* Falsche Anzahl Parameter? */
986 if(( Req->argc < 1 ) || ( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
989 c = Client_GetFromID( Req->argv[0] );
990 if(( ! c ) || ( Client_Type( c ) != CLIENT_USER )) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[0] );
992 /* Empfaenger des WHOIS suchen */
993 if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_GetFromID( Req->prefix );
994 else target = Client;
995 if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
997 /* Nick, User und Name */
998 if( ! IRC_WriteStrClient( target, RPL_WHOISUSER_MSG, Client_ID( target ), Client_ID( c ), Client_User( c ), Client_Hostname( c ), Client_Info( c ))) return DISCONNECTED;
1001 if( ! IRC_WriteStrClient( target, RPL_WHOISSERVER_MSG, Client_ID( target ), Client_ID( c ), Client_ID( Client_Introducer( c )), Client_Info( Client_Introducer( c )))) return DISCONNECTED;
1004 if( Client_HasMode( c, 'o' ))
1006 if( ! IRC_WriteStrClient( target, RPL_WHOISOPERATOR_MSG, Client_ID( target ), Client_ID( c ))) return DISCONNECTED;
1009 /* Idle (nur lokale Clients) */
1010 if( Client_Conn( c ) > NONE )
1012 if( ! IRC_WriteStrClient( target, RPL_WHOISIDLE_MSG, Client_ID( target ), Client_ID( c ), Conn_GetIdle( Client_Conn ( c )))) return DISCONNECTED;
1016 return IRC_WriteStrClient( target, RPL_ENDOFWHOIS_MSG, Client_ID( target ), Client_ID( c ));
1020 GLOBAL BOOLEAN IRC_USERHOST( CLIENT *Client, REQUEST *Req )
1022 CHAR rpl[COMMAND_LEN];
1026 assert( Client != NULL );
1027 assert( Req != NULL );
1029 if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
1031 /* Falsche Anzahl Parameter? */
1032 if(( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
1034 if( Req->argc > 5 ) max = 5;
1035 else max = Req->argc;
1037 strcpy( rpl, RPL_USERHOST_MSG );
1038 for( i = 0; i < max; i++ )
1040 c = Client_GetFromID( Req->argv[i] );
1041 if( c && ( Client_Type( c ) == CLIENT_USER ))
1043 /* Dieser Nick ist "online" */
1044 strcat( rpl, Client_ID( c ));
1045 if( Client_HasMode( c, 'o' )) strcat( rpl, "*" );
1047 if( Client_HasMode( c, 'a' )) strcat( rpl, "-" );
1048 else strcat( rpl, "+" );
1049 strcat( rpl, Client_User( c ));
1051 strcat( rpl, Client_Hostname( c ));
1055 if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0';
1057 return IRC_WriteStrClient( Client, rpl, Client_ID( Client ) );
1058 } /* IRC_USERHOST */
1061 GLOBAL BOOLEAN IRC_ERROR( CLIENT *Client, REQUEST *Req )
1063 assert( Client != NULL );
1064 assert( Req != NULL );
1066 if( Req->argc < 1 ) Log( LOG_NOTICE, "Got ERROR from \"%s\"!", Client_Mask( Client ));
1067 else Log( LOG_NOTICE, "Got ERROR from \"%s\": %s!", Client_Mask( Client ), Req->argv[0] );
1073 LOCAL BOOLEAN Hello_User( CLIENT *Client )
1075 assert( Client != NULL );
1077 /* Passwort ueberpruefen */
1078 if( strcmp( Client_Password( Client ), Conf_ServerPwd ) != 0 )
1080 /* Falsches Passwort */
1081 Log( LOG_ALERT, "User \"%s\" rejected (connection %d): Bad password!", Client_Mask( Client ), Client_Conn( Client ));
1082 Conn_Close( Client_Conn( Client ), "Bad password!" );
1083 return DISCONNECTED;
1086 Log( LOG_NOTICE, "User \"%s\" registered (connection %d).", Client_Mask( Client ), Client_Conn( Client ));
1088 /* Andere Server informieren */
1089 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 ));
1091 if( ! IRC_WriteStrClient( Client, RPL_WELCOME_MSG, Client_ID( Client ), Client_Mask( Client ))) return FALSE;
1092 if( ! IRC_WriteStrClient( Client, RPL_YOURHOST_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( )))) return FALSE;
1093 if( ! IRC_WriteStrClient( Client, RPL_CREATED_MSG, Client_ID( Client ), NGIRCd_StartStr )) return FALSE;
1094 if( ! IRC_WriteStrClient( Client, RPL_MYINFO_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( )))) return FALSE;
1096 Client_SetType( Client, CLIENT_USER );
1098 return Show_MOTD( Client );
1102 LOCAL BOOLEAN Show_MOTD( CLIENT *Client )
1108 assert( Client != NULL );
1110 fd = fopen( Conf_MotdFile, "r" );
1113 Log( LOG_WARNING, "Can't read MOTD file \"%s\": %s", Conf_MotdFile, strerror( errno ));
1114 return IRC_WriteStrClient( Client, ERR_NOMOTD_MSG, Client_ID( Client ) );
1117 IRC_WriteStrClient( Client, RPL_MOTDSTART_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( )));
1120 if( ! fgets( line, 126, fd )) break;
1121 if( line[strlen( line ) - 1] == '\n' ) line[strlen( line ) - 1] = '\0';
1122 if( ! IRC_WriteStrClient( Client, RPL_MOTD_MSG, Client_ID( Client ), line ))
1128 ok = IRC_WriteStrClient( Client, RPL_ENDOFMOTD_MSG, Client_ID( Client ) );
1136 LOCAL VOID Kill_Nick( CHAR *Nick )
1138 Log( LOG_ALERT, "User(s) with nick \"%s\" will be disconnected!", Nick );
1140 Log( LOG_ALERT, "[Kill_Nick() not implemented - OOOPS!]" );