X-Git-Url: https://arthur.barton.de/cgi-bin/gitweb.cgi?p=ngircd-alex.git;a=blobdiff_plain;f=src%2Fngircd%2Firc.c;h=078376d502670c88142c6467a7255930ad25a601;hp=fb3ed53a35e1fa38312209ea1a7cf3487190914f;hb=6817e293c5c9f4b39a77af3333d835775e0c5462;hpb=08cf560734765afe70140753db1e881be647e540 diff --git a/src/ngircd/irc.c b/src/ngircd/irc.c index fb3ed53a..078376d5 100644 --- a/src/ngircd/irc.c +++ b/src/ngircd/irc.c @@ -1,19 +1,229 @@ /* * ngIRCd -- The Next Generation IRC Daemon - * Copyright (c)2001 by Alexander Barton (alex@barton.de) + * Copyright (c)2001,2002 by Alexander Barton (alex@barton.de) * * Dieses Programm ist freie Software. Sie koennen es unter den Bedingungen * der GNU General Public License (GPL), wie von der Free Software Foundation * herausgegeben, weitergeben und/oder modifizieren, entweder unter Version 2 * der Lizenz oder (wenn Sie es wuenschen) jeder spaeteren Version. * Naehere Informationen entnehmen Sie bitter der Datei COPYING. Eine Liste - * der an comBase beteiligten Autoren finden Sie in der Datei AUTHORS. + * der an ngIRCd beteiligten Autoren finden Sie in der Datei AUTHORS. * - * $Id: irc.c,v 1.9 2001/12/26 14:45:37 alex Exp $ + * $Id: irc.c,v 1.68 2002/02/25 17:46:27 alex Exp $ * * irc.c: IRC-Befehle * * $Log: irc.c,v $ + * Revision 1.68 2002/02/25 17:46:27 alex + * - an User wird nun immer ein "komplettes" Prefix verschickt. + * + * Revision 1.67 2002/02/25 13:21:25 alex + * - WHOIS wird nicht mehr automatisch an den "Original-Server" weiterge- + * leitet: war eh nicht RFC-konform und machte Probleme mit Clients. + * + * Revision 1.66 2002/02/23 21:39:48 alex + * - IRC-Befehl KILL sowie Kills bei Nick Collsisions implementiert. + * + * Revision 1.65 2002/02/23 00:03:54 alex + * - Ergebnistyp von Conn_GetIdle() und Conn_LastPing() auf "time_t" geaendert. + * + * Revision 1.64 2002/02/19 20:06:45 alex + * - User-Registrierung wird nicht mehr als Nick-Aenderung protokolliert, + * - VERSION liefert nun doch wieder den Debug-Status im Reply. + * + * Revision 1.63 2002/02/19 02:21:17 alex + * - der Debug-Level wird bei VERSION nicht mehr geliefert. Grund: a) absolut + * unnoetig und b) Compiler-Fehler, wenn ohne Debug-Code configure'd ;-)) + * + * Revision 1.62 2002/02/17 23:38:58 alex + * - neuer IRC-Befehl VERSION implementiert: IRC_VERSION(). + * + * Revision 1.61 2002/02/17 19:03:12 alex + * - NICK-Aenderungen wurden dem User selber mit dem falschen Prefix geliefert. + * + * Revision 1.60 2002/02/17 17:43:14 alex + * - Fehlerhafte Modes werden nun ausfuehrlicher an den Client gemeldet. + * + * Revision 1.59 2002/02/17 17:30:21 alex + * - NICK-Aenderungen werden an alle Server und betroffene Clients gemeldet. + * - Neue Funktion IRC_WriteStrRelatedPrefix(). + * + * Revision 1.58 2002/02/17 17:18:59 alex + * - NICK korrigiert. + * + * Revision 1.57 2002/02/13 23:05:29 alex + * - Nach Connect eines Users werden LUSERS-Informationen angezeigt. + * + * Revision 1.56 2002/02/13 17:52:27 alex + * - es werden nun Channel- und User-Modes von Usern angenommen. + * + * Revision 1.55 2002/02/12 14:40:37 alex + * - via NJOIN gemeldete Benutzer wurden nicht in Channels bekannt gemacht. + * + * Revision 1.54 2002/02/11 23:33:35 alex + * - weitere Anpassungen an Channel-Modes und Channel-User-Modes. + * + * Revision 1.53 2002/02/11 16:06:21 alex + * - Die Quelle von MODE-Aenderungen wird nun korrekt weitergegeben. + * + * Revision 1.52 2002/02/11 15:52:21 alex + * - PONG an den Server selber wurde faelschlicherweise versucht zu forwarden. + * - Channel-Modes wurden falsch geliefert (als User-Modes). + * + * Revision 1.51 2002/02/11 15:15:53 alex + * - PING und PONG werden nun auch korrekt an andere Server geforwarded. + * - bei MODE-Meldungen wird der letzte Parameter nicht mehr mit ":" getrennt. + * + * Revision 1.50 2002/02/11 01:03:20 alex + * - Aenderungen und Anpassungen an Channel-Modes und Channel-User-Modes: + * Modes werden besser geforwarded, lokale User, fuer die ein Channel + * angelegt wird, werden Channel-Operator, etc. pp. ... + * - NJOIN's von Servern werden nun korrekt an andere Server weitergeleitet. + * + * Revision 1.49 2002/02/06 16:51:22 alex + * - neue Funktion zur MODE-Behandlung, fuer Channel-Modes vorbereitet. + * + * Revision 1.48 2002/01/29 00:13:45 alex + * - WHOIS zeigt nun auch die Channels an, in denen der jeweilige User Mitglied ist. + * - zu jedem Server wird nun der "Top-Server" gespeichert, somit funktioniert + * LINKS wieder korrekt. + * + * Revision 1.47 2002/01/28 13:05:48 alex + * - nach einem JOIN wird die Liste der Mitglieder an den Client geschickt. + * - MODE fuer Channels wird nun komplett ignoriert (keine Fehlermeldung mehr). + * + * Revision 1.46 2002/01/28 01:45:43 alex + * - SERVER-Meldungen an neue Server sind nun in der richtigen Reihenfolge. + * + * Revision 1.45 2002/01/28 01:18:14 alex + * - connectierenden Servern werden Channels nun mit NJOIN bekannt gemacht. + * + * Revision 1.44 2002/01/28 00:55:08 alex + * - ein neu connectierender Server wird nun korrekt im Netz bekannt gemacht. + * + * Revision 1.43 2002/01/27 21:56:39 alex + * - IRC_WriteStrServersPrefixID() und IRC_WriteStrClientPrefixID() wieder entfernt. + * - einige kleinere Fixes bezueglich Channels ... + * + * Revision 1.42 2002/01/27 18:28:01 alex + * - bei NICK wurde das falsche Prefix an andere Server weitergegeben. + * + * Revision 1.41 2002/01/27 17:15:49 alex + * - anderungen an den Funktions-Prototypen von IRC_WriteStrChannel() und + * IRC_WriteStrChannelPrefix(), + * - neue: IRC_WriteStrClientPrefixID() und IRC_WriteStrServersPrefixID(). + * + * Revision 1.40 2002/01/26 18:43:11 alex + * - neue Funktionen IRC_WriteStrChannelPrefix() und IRC_WriteStrChannel(), + * die IRC_Write_xxx_Related() sind dafuer entfallen. + * - IRC_PRIVMSG() kann nun auch mit Channels als Ziel umgehen. + * + * Revision 1.39 2002/01/21 00:05:11 alex + * - neue Funktionen IRC_JOIN und IRC_PART begonnen, ebenso die Funktionen + * IRC_WriteStrRelatedPrefix und IRC_WriteStrRelatedChannelPrefix(). + * - diverse Aenderungen im Zusammenhang mit Channels. + * + * Revision 1.38 2002/01/18 15:31:32 alex + * - die User-Modes bei einem NICK von einem Server wurden falsch uebernommen. + * + * Revision 1.37 2002/01/16 22:10:18 alex + * - IRC_LUSERS() implementiert. + * + * Revision 1.36 2002/01/11 23:50:55 alex + * - LINKS implementiert, LUSERS begonnen. + * + * Revision 1.35 2002/01/09 21:30:45 alex + * - WHOIS wurde faelschlicherweise an User geforwarded statt vom Server beantwortet. + * + * Revision 1.34 2002/01/09 01:09:58 alex + * - WHOIS wird im "Strict-RFC-Mode" nicht mehr automatisch geforwarded, + * - andere Server werden nun ueber bisherige Server und User informiert. + * + * Revision 1.33 2002/01/07 23:42:12 alex + * - Es werden fuer alle Server eigene Token generiert, + * - QUIT von einem Server fuer einen User wird an andere Server geforwarded, + * - ebenso NICK-Befehle, die "fremde" User einfuehren. + * + * Revision 1.32 2002/01/07 16:02:36 alex + * - Loglevel von Remote-Mode-Aenderungen angepasst (nun Debug). + * - Im Debug-Mode werden nun auch PING's protokolliert. + * + * Revision 1.31 2002/01/07 15:39:46 alex + * - Server nimmt nun Server-Links an: PASS und SERVER entsprechend angepasst. + * - MODE und NICK melden nun die Aenderungen an andere Server. + * + * Revision 1.30 2002/01/06 15:21:29 alex + * - Loglevel und Meldungen nochmals ueberarbeitet. + * - QUIT und SQUIT forwarden nun den Grund der Trennung, + * - WHOIS wird nun immer an den "Original-Server" weitergeleitet. + * + * Revision 1.29 2002/01/05 23:24:54 alex + * - WHOIS erweitert: Anfragen koennen an andere Server weitergeleitet werden. + * - Vorbereitungen fuer Ident-Abfragen bei neuen Client-Strukturen. + * + * Revision 1.28 2002/01/05 20:08:02 alex + * - Div. Aenderungen fuer die Server-Links (u.a. WHOIS, QUIT, NICK angepasst). + * - Neue Funktionen IRC_WriteStrServer() und IRC_WriteStrServerPrefix(). + * + * Revision 1.27 2002/01/05 19:15:03 alex + * - Fehlerpruefung bei select() in der "Hauptschleife" korrigiert. + * + * Revision 1.26 2002/01/05 16:51:18 alex + * - das Passwort von Servern wird nun ueberprueft (PASS- und SERVER-Befehl). + * + * Revision 1.25 2002/01/05 00:48:33 alex + * - bei SQUIT wurde immer die Verbindung getrennt, auch bei Remote-Servern. + * + * Revision 1.24 2002/01/04 17:58:44 alex + * - IRC_WriteStrXXX()-Funktionen eingefuehrt, groessere Anpassungen daran. + * - neuer Befehl SQUIT, QUIT an Server-Links angepasst. + * + * Revision 1.23 2002/01/04 01:36:40 alex + * - Loglevel ein wenig angepasst. + * + * Revision 1.22 2002/01/04 01:21:47 alex + * - Client-Strukruren werden nur noch ueber Funktionen angesprochen. + * - Weitere Anpassungen und Erweiterungen der Server-Links. + * + * Revision 1.21 2002/01/03 02:26:51 alex + * - neue Befehle SERVER und NJOIN begonnen, + * - begonnen, diverse IRC-Befehle an Server-Links anzupassen. + * + * Revision 1.20 2002/01/02 12:46:41 alex + * - die Gross- und Kleinschreibung des Nicks kann mit NICK nun geaendert werden. + * + * Revision 1.19 2002/01/02 02:51:39 alex + * - Copyright-Texte angepasst. + * - neuer Befehl "ERROR". + * + * Revision 1.17 2001/12/31 15:33:13 alex + * - neuer Befehl NAMES, kleinere Bugfixes. + * - Bug bei PING behoben: war zu restriktiv implementiert :-) + * + * Revision 1.16 2001/12/31 02:18:51 alex + * - viele neue Befehle (WHOIS, ISON, OPER, DIE, RESTART), + * - neuen Header "defines.h" mit (fast) allen Konstanten. + * - Code Cleanups und viele "kleine" Aenderungen & Bugfixes. + * + * Revision 1.15 2001/12/30 19:26:11 alex + * - Unterstuetzung fuer die Konfigurationsdatei eingebaut. + * + * Revision 1.14 2001/12/30 11:42:00 alex + * - der Server meldet nun eine ordentliche "Start-Zeit". + * + * Revision 1.13 2001/12/29 03:10:06 alex + * - Neue Funktion IRC_MODE() implementiert, div. Aenderungen. + * - neue configure-Optione "--enable-strict-rfc". + * + * Revision 1.12 2001/12/27 19:17:26 alex + * - neue Befehle PRIVMSG, NOTICE, PING. + * + * Revision 1.11 2001/12/27 16:55:41 alex + * - neu: IRC_WriteStrRelated(), Aenderungen auch in IRC_WriteStrClient(). + * + * Revision 1.10 2001/12/26 22:48:53 alex + * - MOTD-Datei ist nun konfigurierbar und wird gelesen. + * * Revision 1.9 2001/12/26 14:45:37 alex * - "Code Cleanups". * @@ -52,14 +262,21 @@ #include #include +#include #include #include +#include #include +#include "ngircd.h" +#include "channel.h" #include "client.h" +#include "conf.h" +#include "conn.h" #include "log.h" #include "messages.h" #include "parse.h" +#include "tool.h" #include #include "irc.h" @@ -69,11 +286,16 @@ #define DISCONNECTED FALSE -LOCAL BOOLEAN Check_Valid_User( CLIENT *Client ); - LOCAL BOOLEAN Hello_User( CLIENT *Client ); LOCAL BOOLEAN Show_MOTD( CLIENT *Client ); +LOCAL VOID Kill_Nick( CHAR *Nick, CHAR *Reason ); + +LOCAL BOOLEAN Send_NAMES( CLIENT *Client, CHANNEL *Chan ); +LOCAL BOOLEAN Send_LUSERS( CLIENT *Client ); + +CHAR *Get_Prefix( CLIENT *Target, CLIENT *Client ); + GLOBAL VOID IRC_Init( VOID ) { @@ -85,207 +307,1992 @@ GLOBAL VOID IRC_Exit( VOID ) } /* IRC_Exit */ -GLOBAL BOOLEAN IRC_WriteStrClient( CLIENT *Client, CLIENT *Prefix, CHAR *Format, ... ) +GLOBAL BOOLEAN IRC_WriteStrClient( CLIENT *Client, CHAR *Format, ... ) +{ + CHAR buffer[1000]; + BOOLEAN ok = CONNECTED; + va_list ap; + + assert( Client != NULL ); + assert( Format != NULL ); + + va_start( ap, Format ); + vsnprintf( buffer, 1000, Format, ap ); + va_end( ap ); + + /* an den Client selber */ + ok = IRC_WriteStrClientPrefix( Client, Client_ThisServer( ), buffer ); + + return ok; +} /* IRC_WriteStrClient */ + + +GLOBAL BOOLEAN IRC_WriteStrClientPrefix( CLIENT *Client, CLIENT *Prefix, CHAR *Format, ... ) { /* Text an Clients, lokal bzw. remote, senden. */ CHAR buffer[1000]; - BOOLEAN ok = CONNECTED; va_list ap; assert( Client != NULL ); assert( Format != NULL ); + assert( Prefix != NULL ); + + va_start( ap, Format ); + vsnprintf( buffer, 1000, Format, ap ); + va_end( ap ); + + return Conn_WriteStr( Client_Conn( Client_NextHop( Client )), ":%s %s", Get_Prefix( Client_NextHop( Client ), Prefix ), buffer ); +} /* IRC_WriteStrClientPrefix */ + + +GLOBAL BOOLEAN IRC_WriteStrChannel( CLIENT *Client, CHANNEL *Chan, BOOLEAN Remote, CHAR *Format, ... ) +{ + CHAR buffer[1000]; + va_list ap; + + assert( Client != NULL ); + assert( Format != NULL ); + + va_start( ap, Format ); + vsnprintf( buffer, 1000, Format, ap ); + va_end( ap ); + + return IRC_WriteStrChannelPrefix( Client, Chan, Client_ThisServer( ), Remote, buffer ); +} /* IRC_WriteStrChannel */ + + +GLOBAL BOOLEAN IRC_WriteStrChannelPrefix( CLIENT *Client, CHANNEL *Chan, CLIENT *Prefix, BOOLEAN Remote, CHAR *Format, ... ) +{ + BOOLEAN sock[MAX_CONNECTIONS], is_server[MAX_CONNECTIONS], ok = CONNECTED; + CHAR buffer[1000]; + CL2CHAN *cl2chan; + CLIENT *c; + INT s, i; + va_list ap; + + assert( Client != NULL ); + assert( Chan != NULL ); + assert( Prefix != NULL ); + assert( Format != NULL ); va_start( ap, Format ); + vsnprintf( buffer, 1000, Format, ap ); + va_end( ap ); - if( Client->conn_id != NONE ) + for( i = 0; i < MAX_CONNECTIONS; i++ ) sock[i] = FALSE; + + /* An alle Clients, die in den selben Channels sind. + * Dabei aber nur einmal je Remote-Server */ + cl2chan = Channel_FirstMember( Chan ); + while( cl2chan ) { - /* Lokaler Client */ - vsnprintf( buffer, 1000, Format, ap ); - if( Prefix ) ok = Conn_WriteStr( Client->conn_id, ":%s %s", Prefix->host, buffer ); - else ok = Conn_WriteStr( Client->conn_id, buffer ); + c = Channel_GetClient( cl2chan ); + if( ! Remote ) + { + if( Client_Conn( c ) <= NONE ) c = NULL; + else if( Client_Type( c ) == CLIENT_SERVER ) c = NULL; + } + if( c ) c = Client_NextHop( c ); + + if( c && ( c != Client )) + { + /* Ok, anderer Client */ + s = Client_Conn( c ); + assert( s >= 0 ); + assert( s < MAX_CONNECTIONS ); + sock[s] = TRUE; + if( Client_Type( c ) == CLIENT_SERVER ) is_server[s] = TRUE; + else is_server[s] = FALSE; + } + cl2chan = Channel_NextMember( Chan, cl2chan ); } - else + + /* Senden ... */ + for( i = 0; i < MAX_CONNECTIONS; i++ ) { - /* Remote-Client */ - Log( LOG_EMERG, "not implemented: IRC_WriteStrClient()" ); + if( sock[i] ) + { + if( is_server[i] ) ok = Conn_WriteStr( i, ":%s %s", Client_ID( Prefix ), buffer ); + else ok = Conn_WriteStr( i, ":%s %s", Client_Mask( Prefix ), buffer ); + if( ! ok ) break; + } } + return ok; +} /* IRC_WriteStrChannelPrefix */ + + +GLOBAL VOID IRC_WriteStrServers( CLIENT *ExceptOf, CHAR *Format, ... ) +{ + CHAR buffer[1000]; + va_list ap; + + assert( Format != NULL ); + va_start( ap, Format ); + vsnprintf( buffer, 1000, Format, ap ); va_end( ap ); - return ok; -} /* IRC_WriteStrClient */ + /* an den Client selber */ + return IRC_WriteStrServersPrefix( ExceptOf, Client_ThisServer( ), buffer ); +} /* IRC_WriteStrServers */ -GLOBAL BOOLEAN IRC_PASS( CLIENT *Client, REQUEST *Req ) + +GLOBAL VOID IRC_WriteStrServersPrefix( CLIENT *ExceptOf, CLIENT *Prefix, CHAR *Format, ... ) { - assert( Client != NULL ); - assert( Req != NULL ); + CHAR buffer[1000]; + CLIENT *c; + va_list ap; + + assert( Format != NULL ); + assert( Prefix != NULL ); - if( Client->type == CLIENT_UNKNOWN ) + va_start( ap, Format ); + vsnprintf( buffer, 1000, Format, ap ); + va_end( ap ); + + c = Client_First( ); + while( c ) { - Log( LOG_DEBUG, "Connection %d: got PASS command ...", Client->conn_id ); - return IRC_WriteStrClient( Client, This_Server, ERR_UNKNOWNCOMMAND_MSG, Client_Name( Client ), Req->command ); + if(( Client_Type( c ) == CLIENT_SERVER ) && ( Client_Conn( c ) > NONE ) && ( c != Client_ThisServer( )) && ( c != ExceptOf )) + { + /* Ziel-Server gefunden */ + IRC_WriteStrClientPrefix( c, Prefix, buffer ); + } + c = Client_Next( c ); } - else return IRC_WriteStrClient( Client, This_Server, ERR_ALREADYREGISTRED_MSG, Client_Name( Client )); -} /* IRC_PASS */ +} /* IRC_WriteStrServersPrefix */ -GLOBAL BOOLEAN IRC_NICK( CLIENT *Client, REQUEST *Req ) +GLOBAL BOOLEAN IRC_WriteStrRelatedPrefix( CLIENT *Client, CLIENT *Prefix, BOOLEAN Remote, CHAR *Format, ... ) { + BOOLEAN sock[MAX_CONNECTIONS], is_server[MAX_CONNECTIONS], ok = CONNECTED; + CL2CHAN *chan_cl2chan, *cl2chan; + CHAR buffer[1000]; + CHANNEL *chan; + va_list ap; + CLIENT *c; + INT i, s; + assert( Client != NULL ); - assert( Req != NULL ); + assert( Prefix != NULL ); + assert( Format != NULL ); - if( Client->type != CLIENT_SERVER && Client->type != CLIENT_SERVICE ) - { - /* Falsche Anzahl Parameter? */ - if( Req->argc != 1 ) return IRC_WriteStrClient( Client, This_Server, ERR_NEEDMOREPARAMS_MSG, Client_Name( Client ), Req->command ); + va_start( ap, Format ); + vsnprintf( buffer, 1000, Format, ap ); + va_end( ap ); - /* pruefen, ob Nick bereits vergeben */ - if( ! Client_CheckNick( Client, Req->argv[0] )) return CONNECTED; + /* initialisieren */ + for( i = 0; i < MAX_CONNECTIONS; i++ ) sock[i] = FALSE; - /* Client-Nick registrieren */ - strcpy( Client->nick, Req->argv[0] ); + /* An alle Clients, die in einem Channel mit dem "Ausloeser" sind, + * den Text schicken. An Remote-Server aber jeweils nur einmal. */ + chan_cl2chan = Channel_FirstChannelOf( Client ); + while( chan_cl2chan ) + { + /* Channel des Users durchsuchen */ + chan = Channel_GetChannel( chan_cl2chan ); + cl2chan = Channel_FirstMember( chan ); + while( cl2chan ) + { + c = Channel_GetClient( cl2chan ); + if( ! Remote ) + { + if( Client_Conn( c ) <= NONE ) c = NULL; + else if( Client_Type( c ) == CLIENT_SERVER ) c = NULL; + } + if( c ) c = Client_NextHop( c ); + + if( c && ( c != Client )) + { + /* Ok, anderer Client */ + s = Client_Conn( c ); + assert( s >= 0 ); + assert( s < MAX_CONNECTIONS ); + sock[s] = TRUE; + if( Client_Type( c ) == CLIENT_SERVER ) is_server[s] = TRUE; + else is_server[s] = FALSE; + } + cl2chan = Channel_NextMember( chan, cl2chan ); + } + + /* naechsten Channel */ + chan_cl2chan = Channel_NextChannelOf( Client, chan_cl2chan ); + } - if( Client->type != CLIENT_USER ) + /* Senden ... */ + for( i = 0; i < MAX_CONNECTIONS; i++ ) + { + if( sock[i] ) { - /* Neuer Client */ - Log( LOG_DEBUG, "Connection %d: got NICK command ...", Client->conn_id ); - if( Client->type == CLIENT_GOTUSER ) return Hello_User( Client ); - else Client->type = CLIENT_GOTNICK; + if( is_server[i] ) ok = Conn_WriteStr( i, ":%s %s", Client_ID( Prefix ), buffer ); + else ok = Conn_WriteStr( i, ":%s %s", Client_Mask( Prefix ), buffer ); + if( ! ok ) break; } - return CONNECTED; } - else return IRC_WriteStrClient( Client, This_Server, ERR_ALREADYREGISTRED_MSG, Client_Name( Client )); -} /* IRC_NICK */ + return ok; +} /* IRC_WriteStrRelatedPrefix */ -GLOBAL BOOLEAN IRC_USER( CLIENT *Client, REQUEST *Req ) + +GLOBAL BOOLEAN IRC_PASS( CLIENT *Client, REQUEST *Req ) { assert( Client != NULL ); assert( Req != NULL ); - if( Client->type == CLIENT_UNKNOWN || Client->type == CLIENT_GOTNICK || Client->type == CLIENT_GOTPASS ) + /* Fehler liefern, wenn kein lokaler Client */ + if( Client_Conn( Client ) <= NONE ) return IRC_WriteStrClient( Client, ERR_UNKNOWNCOMMAND_MSG, Client_ID( Client ), Req->command ); + + if(( Client_Type( Client ) == CLIENT_UNKNOWN ) && ( Req->argc == 1)) { - /* Falsche Anzahl Parameter? */ - if( Req->argc != 4 ) return IRC_WriteStrClient( Client, This_Server, ERR_NEEDMOREPARAMS_MSG, Client_Name( Client ), Req->command ); + /* noch nicht registrierte unbekannte Verbindung */ + Log( LOG_DEBUG, "Connection %d: got PASS command ...", Client_Conn( Client )); - strncpy( Client->user, Req->argv[0], CLIENT_USER_LEN ); - Client->user[CLIENT_USER_LEN] = '\0'; - strncpy( Client->name, Req->argv[3], CLIENT_NAME_LEN ); - Client->name[CLIENT_NAME_LEN] = '\0'; + /* Passwort speichern */ + Client_SetPassword( Client, Req->argv[0] ); - Log( LOG_DEBUG, "Connection %d: got USER command ...", Client->conn_id ); - if( Client->type == CLIENT_GOTNICK ) return Hello_User( Client ); - else Client->type = CLIENT_GOTUSER; + Client_SetType( Client, CLIENT_GOTPASS ); return CONNECTED; } - else if( Client->type == CLIENT_USER || Client->type == CLIENT_SERVER || Client->type == CLIENT_SERVICE ) + else if((( Client_Type( Client ) == CLIENT_UNKNOWN ) || ( Client_Type( Client ) == CLIENT_UNKNOWNSERVER )) && (( Req->argc == 3 ) || ( Req->argc == 4 ))) { - return IRC_WriteStrClient( Client, This_Server, ERR_ALREADYREGISTRED_MSG, Client_Name( Client )); + /* noch nicht registrierte Server-Verbindung */ + Log( LOG_DEBUG, "Connection %d: got PASS command (new server link) ...", Client_Conn( Client )); + + /* Passwort speichern */ + Client_SetPassword( Client, Req->argv[0] ); + + Client_SetType( Client, CLIENT_GOTPASSSERVER ); + return CONNECTED; } - else return IRC_WriteStrClient( Client, This_Server, ERR_NOTREGISTERED_MSG, Client_Name( Client )); -} /* IRC_USER */ + else if(( Client_Type( Client ) == CLIENT_UNKNOWN ) || ( Client_Type( Client ) == CLIENT_UNKNOWNSERVER )) + { + /* Falsche Anzahl Parameter? */ + return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + } + else return IRC_WriteStrClient( Client, ERR_ALREADYREGISTRED_MSG, Client_ID( Client )); +} /* IRC_PASS */ -GLOBAL BOOLEAN IRC_QUIT( CLIENT *Client, REQUEST *Req ) +GLOBAL BOOLEAN IRC_SERVER( CLIENT *Client, REQUEST *Req ) { + CHAR str[LINE_LEN], *ptr; + CLIENT *from, *c, *cl; + CL2CHAN *cl2chan; + INT max_hops, i; + CHANNEL *chan; + BOOLEAN ok; + assert( Client != NULL ); assert( Req != NULL ); - if( Client->type != CLIENT_SERVER && Client->type != CLIENT_SERVICE ) + /* Fehler liefern, wenn kein lokaler Client */ + if( Client_Conn( Client ) <= NONE ) return IRC_WriteStrClient( Client, ERR_UNKNOWNCOMMAND_MSG, Client_ID( Client ), Req->command ); + + if( Client_Type( Client ) == CLIENT_GOTPASSSERVER ) { + /* Verbindung soll als Server-Server-Verbindung registriert werden */ + Log( LOG_DEBUG, "Connection %d: got SERVER command (new server link) ...", Client_Conn( Client )); + /* Falsche Anzahl Parameter? */ - if( Req->argc > 1 ) return IRC_WriteStrClient( Client, This_Server, ERR_NEEDMOREPARAMS_MSG, Client_Name( Client ), Req->command ); + if(( Req->argc != 2 ) && ( Req->argc != 3 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); - Conn_Close( Client->conn_id, "Client wants to quit." ); - return DISCONNECTED; - } - else return IRC_WriteStrClient( Client, This_Server, ERR_NOTREGISTERED_MSG, Client_Name( Client )); -} /* IRC_QUIT */ + /* Ist dieser Server bei uns konfiguriert? */ + for( i = 0; i < Conf_Server_Count; i++ ) if( strcasecmp( Req->argv[0], Conf_Server[i].name ) == 0 ) break; + if( i >= Conf_Server_Count ) + { + /* Server ist nicht konfiguriert! */ + Log( LOG_ERR, "Connection %d: Server \"%s\" not configured here!", Client_Conn( Client ), Req->argv[0] ); + Conn_Close( Client_Conn( Client ), NULL, "Server not configured here", TRUE ); + return DISCONNECTED; + } + if( strcmp( Client_Password( Client ), Conf_Server[i].pwd ) != 0 ) + { + /* Falsches Passwort */ + Log( LOG_ERR, "Connection %d: Bad password for server \"%s\"!", Client_Conn( Client ), Req->argv[0] ); + Conn_Close( Client_Conn( Client ), NULL, "Bad password", TRUE ); + return DISCONNECTED; + } + + /* Ist ein Server mit dieser ID bereits registriert? */ + if( ! Client_CheckID( Client, Req->argv[0] )) return DISCONNECTED; + + /* Server-Strukturen fuellen ;-) */ + Client_SetID( Client, Req->argv[0] ); + Client_SetHops( Client, 1 ); + Client_SetInfo( Client, Req->argv[Req->argc - 1] ); + + /* Meldet sich der Server bei uns an? */ + if( Req->argc == 2 ) + { + /* Unseren SERVER- und PASS-Befehl senden */ + ok = TRUE; + if( ! IRC_WriteStrClient( Client, "PASS %s "PASSSERVERADD, Conf_Server[i].pwd )) ok = FALSE; + else ok = IRC_WriteStrClient( Client, "SERVER %s 1 :%s", Conf_ServerName, Conf_ServerInfo ); + if( ! ok ) + { + Conn_Close( Client_Conn( Client ), "Unexpected server behavior!", NULL, FALSE ); + return DISCONNECTED; + } + Client_SetIntroducer( Client, Client ); + Client_SetToken( Client, 1 ); + } + else Client_SetToken( Client, atoi( Req->argv[1] )); + Log( LOG_NOTICE, "Server \"%s\" registered (connection %d, 1 hop - direct link).", Client_ID( Client ), Client_Conn( Client )); -GLOBAL BOOLEAN IRC_PING( CLIENT *Client, REQUEST *Req ) -{ - assert( Client != NULL ); - assert( Req != NULL ); + Client_SetType( Client, CLIENT_SERVER ); - return IRC_WriteStrClient( Client, This_Server, ERR_UNKNOWNCOMMAND_MSG, Client_Name( Client ), Req->command ); -} /* IRC_PING */ + /* maximalen Hop Count ermitteln */ + max_hops = 0; + c = Client_First( ); + while( c ) + { + if( Client_Hops( c ) > max_hops ) max_hops = Client_Hops( c ); + c = Client_Next( c ); + } + + /* Alle bisherigen Server dem neuen Server bekannt machen, + * die bisherigen Server ueber den neuen informierenn */ + for( i = 0; i < ( max_hops + 1 ); i++ ) + { + c = Client_First( ); + while( c ) + { + if(( Client_Type( c ) == CLIENT_SERVER ) && ( c != Client ) && ( c != Client_ThisServer( )) && ( Client_Hops( c ) == i )) + { + if( Client_Conn( c ) > NONE ) + { + /* Dem gefundenen Server gleich den neuen + * Server bekannt machen */ + if( ! IRC_WriteStrClient( c, "SERVER %s %d %d :%s", Client_ID( Client ), Client_Hops( Client ) + 1, Client_MyToken( Client ), Client_Info( Client ))) return DISCONNECTED; + } + + /* Den neuen Server ueber den alten informieren */ + if( ! IRC_WriteStrClientPrefix( Client, Client_Hops( c ) == 1 ? Client_ThisServer( ) : Client_Introducer( c ), "SERVER %s %d %d :%s", Client_ID( c ), Client_Hops( c ) + 1, Client_MyToken( c ), Client_Info( c ))) return DISCONNECTED; + } + c = Client_Next( c ); + } + } + /* alle User dem neuen Server bekannt machen */ + c = Client_First( ); + while( c ) + { + if( Client_Type( c ) == CLIENT_USER ) + { + /* User an neuen Server melden */ + if( ! IRC_WriteStrClient( Client, "NICK %s %d %s %s %d +%s :%s", Client_ID( c ), Client_Hops( c ) + 1, Client_User( c ), Client_Hostname( c ), Client_MyToken( Client_Introducer( c )), Client_Modes( c ), Client_Info( c ))) return DISCONNECTED; + } + c = Client_Next( c ); + } -GLOBAL BOOLEAN IRC_PONG( CLIENT *Client, REQUEST *Req ) -{ - assert( Client != NULL ); - assert( Req != NULL ); + /* Channels dem neuen Server bekannt machen */ + chan = Channel_First( ); + while( chan ) + { + sprintf( str, "NJOIN %s :", Channel_Name( chan )); + + /* alle Member suchen */ + cl2chan = Channel_FirstMember( chan ); + while( cl2chan ) + { + cl = Channel_GetClient( cl2chan ); + assert( cl != NULL ); + + /* Nick, ggf. mit Modes, anhaengen */ + if( str[strlen( str ) - 1] != ':' ) strcat( str, "," ); + if( strchr( Channel_UserModes( chan, cl ), 'v' )) strcat( str, "+" ); + if( strchr( Channel_UserModes( chan, cl ), 'o' )) strcat( str, "@" ); + strcat( str, Client_ID( cl )); + + if( strlen( str ) > ( LINE_LEN - CLIENT_NICK_LEN - 4 )) + { + /* Zeile senden */ + if( ! IRC_WriteStrClient( Client, str )) return DISCONNECTED; + sprintf( str, "NJOIN %s :", Channel_Name( chan )); + } + + cl2chan = Channel_NextMember( chan, cl2chan ); + } + + /* noch Daten da? */ + if( str[strlen( str ) - 1] != ':') + { + /* Ja; Also senden ... */ + if( ! IRC_WriteStrClient( Client, str )) return DISCONNECTED; + } + + /* naechsten Channel suchen */ + chan = Channel_Next( chan ); + } + + return CONNECTED; + } + else if( Client_Type( Client ) == CLIENT_SERVER ) + { + /* Neuer Server wird im Netz angekuendigt */ - if( ! Check_Valid_User( Client )) return CONNECTED; + /* Falsche Anzahl Parameter? */ + if( Req->argc != 4 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); - /* Falsche Anzahl Parameter? */ - if( Req->argc < 1 ) return IRC_WriteStrClient( Client, This_Server, ERR_NOORIGIN_MSG, Client_Name( Client )); - if( Req->argc > 1 ) return IRC_WriteStrClient( Client, This_Server, ERR_NEEDMOREPARAMS_MSG, Client_Name( Client ), Req->command ); + /* Ist ein Server mit dieser ID bereits registriert? */ + if( ! Client_CheckID( Client, Req->argv[0] )) return DISCONNECTED; - /* Der Connection-Timestamp wurde schon beim Lesen aus dem Socket - * aktualisiert, daher muss das hier nicht mehr gemacht werden. */ + /* Ueberfluessige Hostnamen aus Info-Text entfernen */ + ptr = strchr( Req->argv[3] + 2, '[' ); + if( ! ptr ) ptr = Req->argv[3]; - Log( LOG_DEBUG, "Connection %d: received PONG.", Client->conn_id ); - return CONNECTED; -} /* IRC_PONG */ + from = Client_GetFromID( Req->prefix ); + if( ! from ) + { + /* Hm, Server, der diesen einfuehrt, ist nicht bekannt!? */ + Log( LOG_ALERT, "Unknown ID in prefix of SERVER: \"%s\"! (on connection %d)", Req->prefix, Client_Conn( Client )); + Conn_Close( Client_Conn( Client ), NULL, "Unknown ID in prefix of SERVER", TRUE ); + return DISCONNECTED; + } + /* Neue Client-Struktur anlegen */ + c = Client_NewRemoteServer( Client, Req->argv[0], from, atoi( Req->argv[1] ), atoi( Req->argv[2] ), ptr, TRUE ); + if( ! c ) + { + /* Neue Client-Struktur konnte nicht angelegt werden */ + Log( LOG_ALERT, "Can't create client structure for server! (on connection %d)", Client_Conn( Client )); + Conn_Close( Client_Conn( Client ), NULL, "Can't allocate client structure for remote server", TRUE ); + return DISCONNECTED; + } -GLOBAL BOOLEAN IRC_MOTD( CLIENT *Client, REQUEST *Req ) + /* Log-Meldung zusammenbauen und ausgeben */ + if(( Client_Hops( c ) > 1 ) && ( Req->prefix[0] )) sprintf( str, "connected to %s, ", Client_ID( from )); + else strcpy( str, "" ); + 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": "" ); + + /* Andere Server informieren */ + IRC_WriteStrServersPrefix( Client, from, "SERVER %s %d %d :%s", Client_ID( c ), Client_Hops( c ) + 1, Client_MyToken( c ), Client_Info( c )); + + return CONNECTED; + } + else return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); +} /* IRC_SERVER */ + + +GLOBAL BOOLEAN IRC_NJOIN( CLIENT *Client, REQUEST *Req ) { + CHAR *channame, *ptr, modes[8]; + BOOLEAN is_op, is_voiced; + CHANNEL *chan; + CLIENT *c; + assert( Client != NULL ); assert( Req != NULL ); - if( ! Check_Valid_User( Client )) return CONNECTED; + if( Client_Type( Client ) != CLIENT_SERVER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTEREDSERVER_MSG, Client_ID( Client )); /* Falsche Anzahl Parameter? */ - if( Req->argc != 0 ) return IRC_WriteStrClient( Client, This_Server, ERR_NEEDMOREPARAMS_MSG, Client_Name( Client ), Req->command ); + if( Req->argc != 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); - return Show_MOTD( Client ); -} /* IRC_MOTD */ + channame = Req->argv[0]; + ptr = strtok( Req->argv[1], "," ); + while( ptr ) + { + is_op = is_voiced = FALSE; + + /* Prefixe abschneiden */ + while(( *ptr == '@' ) || ( *ptr == '+' )) + { + if( *ptr == '@' ) is_op = TRUE; + if( *ptr == '+' ) is_voiced = TRUE; + ptr++; + } + c = Client_GetFromID( ptr ); + if( c ) + { + Channel_Join( c, channame ); + chan = Channel_Search( channame ); + assert( chan != NULL ); + + if( is_op ) Channel_UserModeAdd( chan, c, 'o' ); + if( is_voiced ) Channel_UserModeAdd( chan, c, 'v' ); + + /* im Channel bekannt machen */ + IRC_WriteStrChannelPrefix( Client, chan, c, FALSE, "JOIN :%s", channame ); + + /* Channel-User-Modes setzen */ + strcpy( modes, Channel_UserModes( chan, c )); + if( modes[0] ) + { + /* Modes im Channel bekannt machen */ + IRC_WriteStrChannelPrefix( Client, chan, Client, FALSE, "MODE %s +%s %s", channame, modes, Client_ID( c )); + } + } + else Log( LOG_ERR, "Got NJOIN for unknown nick \"%s\" for channel \"%s\"!", ptr, channame ); + + /* naechsten Nick suchen */ + ptr = strtok( NULL, "," ); + } -LOCAL BOOLEAN Check_Valid_User( CLIENT *Client ) -{ - assert( Client != NULL ); + /* an andere Server weiterleiten */ + IRC_WriteStrServersPrefix( Client, Client_ThisServer( ), "NJOIN %s :%s", Req->argv[0], Req->argv[1] ); - if( Client->type != CLIENT_USER ) - { - IRC_WriteStrClient( Client, This_Server, ERR_NOTREGISTERED_MSG, Client_Name( Client )); - return FALSE; - } - else return TRUE; -} /* Check_Valid_User */ + return CONNECTED; +} /* IRC_NJOIN */ -LOCAL BOOLEAN Hello_User( CLIENT *Client ) +GLOBAL BOOLEAN IRC_NICK( CLIENT *Client, REQUEST *Req ) { + CLIENT *intr_c, *target, *c; + CHAR *modes; + assert( Client != NULL ); - assert( Client->nick[0] ); - - Log( LOG_NOTICE, "User \"%s!%s@%s\" (%s) registered.", Client->nick, Client->user, Client->host, Client->name ); + assert( Req != NULL ); - IRC_WriteStrClient( Client, This_Server, RPL_WELCOME_MSG, Client->nick, Client->nick, Client->user, Client->host ); - IRC_WriteStrClient( Client, This_Server, RPL_YOURHOST_MSG, Client->nick, This_Server->host ); - IRC_WriteStrClient( Client, This_Server, RPL_CREATED_MSG, Client->nick ); - IRC_WriteStrClient( Client, This_Server, RPL_MYINFO_MSG, Client->nick, This_Server->host ); + /* Zumindest BitchX sendet NICK-USER in der falschen Reihenfolge. */ +#ifndef STRICT_RFC + if( Client_Type( Client ) == CLIENT_UNKNOWN || Client_Type( Client ) == CLIENT_GOTPASS || Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_GOTUSER || Client_Type( Client ) == CLIENT_USER || ( Client_Type( Client ) == CLIENT_SERVER && Req->argc == 1 )) +#else + if( Client_Type( Client ) == CLIENT_UNKNOWN || Client_Type( Client ) == CLIENT_GOTPASS || Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_USER || ( Client_Type( Client ) == CLIENT_SERVER && Req->argc == 1 )) +#endif + { + /* User-Registrierung bzw. Nick-Aenderung */ - Client->type = CLIENT_USER; + /* Falsche Anzahl Parameter? */ + if( Req->argc != 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); - return Show_MOTD( Client ); -} /* Hello_User */ + /* "Ziel-Client" ermitteln */ + if( Client_Type( Client ) == CLIENT_SERVER ) + { + target = Client_GetFromID( Req->prefix ); + if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[0] ); + } + else + { + /* Ist der Client "restricted"? */ + if( Client_HasMode( Client, 'r' )) return IRC_WriteStrClient( Client, ERR_RESTRICTED_MSG, Client_ID( Client )); + target = Client; + } +#ifndef STRICT_RFC + /* Wenn der Client zu seinem eigenen Nick wechseln will, so machen + * wir nichts. So macht es das Original und mind. Snak hat probleme, + * wenn wir es nicht so machen. Ob es so okay ist? Hm ... */ + if( strcmp( Client_ID( target ), Req->argv[0] ) == 0 ) return CONNECTED; +#endif + + /* pruefen, ob Nick bereits vergeben. Speziallfall: der Client + * will nur die Gross- und Kleinschreibung aendern. Das darf + * er natuerlich machen :-) */ + if( strcasecmp( Client_ID( target ), Req->argv[0] ) != 0 ) + { + if( ! Client_CheckNick( target, Req->argv[0] )) return CONNECTED; + } -LOCAL BOOLEAN Show_MOTD( CLIENT *Client ) -{ - assert( Client != NULL ); - assert( Client->nick[0] ); + /* Nick-Aenderung: allen mitteilen! */ + + if( Client_Type( Client ) == CLIENT_USER ) IRC_WriteStrClientPrefix( Client, Client, "NICK :%s", Req->argv[0] ); + IRC_WriteStrServersPrefix( Client, target, "NICK :%s", Req->argv[0] ); + IRC_WriteStrRelatedPrefix( target, target, FALSE, "NICK :%s", Req->argv[0] ); - IRC_WriteStrClient( Client, This_Server, RPL_MOTDSTART_MSG, Client->nick, This_Server->host ); - IRC_WriteStrClient( Client, This_Server, RPL_MOTD_MSG, Client->nick, "Some cool IRC server welcome message ;-)" ); - return IRC_WriteStrClient( Client, This_Server, RPL_ENDOFMOTD_MSG, Client->nick ); -} /* Show_MOTD */ + /* Client-Nick registrieren */ + Client_SetID( target, Req->argv[0] ); + + if(( Client_Type( target ) != CLIENT_USER ) && ( Client_Type( target ) != CLIENT_SERVER )) + { + /* Neuer Client */ + Log( LOG_DEBUG, "Connection %d: got NICK command ...", Client_Conn( Client )); + if( Client_Type( Client ) == CLIENT_GOTUSER ) return Hello_User( Client ); + else Client_SetType( Client, CLIENT_GOTNICK ); + } + else Log( LOG_INFO, "User \"%s\" changed nick: \"%s\" -> \"%s\".", Client_Mask( target ), Client_ID( target ), Req->argv[0] ); + + return CONNECTED; + } + else if( Client_Type( Client ) == CLIENT_SERVER ) + { + /* Server fuehrt neuen Client ein */ + + /* Falsche Anzahl Parameter? */ + if( Req->argc != 7 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + /* Nick ueberpruefen */ + c = Client_GetFromID( Req->argv[0] ); + if( c ) + { + /* Der neue Nick ist auf diesem Server bereits registriert: + * sowohl der neue, als auch der alte Client muessen nun + * disconnectiert werden. */ + Log( LOG_ERR, "Server %s introduces already registered nick \"%s\"!", Client_ID( Client ), Req->argv[0] ); + Kill_Nick( Req->argv[0], "Nick collision" ); + return CONNECTED; + } + + /* Server, zu dem der Client connectiert ist, suchen */ + intr_c = Client_GetFromToken( Client, atoi( Req->argv[4] )); + if( ! intr_c ) + { + Log( LOG_ERR, "Server %s introduces nick \"%s\" on unknown server!?", Client_ID( Client ), Req->argv[0] ); + Kill_Nick( Req->argv[0], "Unknown server" ); + return CONNECTED; + } + + /* Neue Client-Struktur anlegen */ + c = Client_NewRemoteUser( intr_c, Req->argv[0], atoi( Req->argv[1] ), Req->argv[2], Req->argv[3], atoi( Req->argv[4] ), Req->argv[5] + 1, Req->argv[6], TRUE ); + if( ! c ) + { + /* Eine neue Client-Struktur konnte nicht angelegt werden. + * Der Client muss disconnectiert werden, damit der Netz- + * status konsistent bleibt. */ + Log( LOG_ALERT, "Can't create client structure! (on connection %d)", Client_Conn( Client )); + Kill_Nick( Req->argv[0], "Server error" ); + return CONNECTED; + } + + modes = Client_Modes( c ); + if( *modes ) Log( LOG_DEBUG, "User \"%s\" (+%s) registered (via %s, on %s, %d hop%s).", Client_Mask( c ), modes, Client_ID( Client ), Client_ID( intr_c ), Client_Hops( c ), Client_Hops( c ) > 1 ? "s": "" ); + else Log( LOG_DEBUG, "User \"%s\" registered (via %s, on %s, %d hop%s).", Client_Mask( c ), Client_ID( Client ), Client_ID( intr_c ), Client_Hops( c ), Client_Hops( c ) > 1 ? "s": "" ); + + /* Andere Server, ausser dem Introducer, informieren */ + IRC_WriteStrServersPrefix( Client, Client, "NICK %s %d %s %s %d %s :%s", Req->argv[0], atoi( Req->argv[1] ) + 1, Req->argv[2], Req->argv[3], Client_MyToken( intr_c ), Req->argv[5], Req->argv[6] ); + + return CONNECTED; + } + else return IRC_WriteStrClient( Client, ERR_ALREADYREGISTRED_MSG, Client_ID( Client )); +} /* IRC_NICK */ + + +GLOBAL BOOLEAN IRC_USER( CLIENT *Client, REQUEST *Req ) +{ + assert( Client != NULL ); + assert( Req != NULL ); + +#ifndef STRICT_RFC + if( Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_GOTPASS || Client_Type( Client ) == CLIENT_UNKNOWN ) +#else + if( Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_GOTPASS ) +#endif + { + /* Falsche Anzahl Parameter? */ + if( Req->argc != 4 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + Client_SetUser( Client, Req->argv[0], FALSE ); + Client_SetInfo( Client, Req->argv[3] ); + + Log( LOG_DEBUG, "Connection %d: got USER command ...", Client_Conn( Client )); + if( Client_Type( Client ) == CLIENT_GOTNICK ) return Hello_User( Client ); + else Client_SetType( Client, CLIENT_GOTUSER ); + return CONNECTED; + } + else if( Client_Type( Client ) == CLIENT_USER || Client_Type( Client ) == CLIENT_SERVER || Client_Type( Client ) == CLIENT_SERVICE ) + { + return IRC_WriteStrClient( Client, ERR_ALREADYREGISTRED_MSG, Client_ID( Client )); + } + else return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); +} /* IRC_USER */ + + +GLOBAL BOOLEAN IRC_QUIT( CLIENT *Client, REQUEST *Req ) +{ + CLIENT *target; + + assert( Client != NULL ); + assert( Req != NULL ); + + if(( Client_Type( Client ) == CLIENT_USER ) || ( Client_Type( Client ) == CLIENT_SERVICE )) + { + /* User / Service */ + + /* Falsche Anzahl Parameter? */ + if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + if( Req->argc == 0 ) Conn_Close( Client_Conn( Client ), "Got QUIT command.", NULL, TRUE ); + else Conn_Close( Client_Conn( Client ), "Got QUIT command.", Req->argv[0], TRUE ); + + return DISCONNECTED; + } + else if ( Client_Type( Client ) == CLIENT_SERVER ) + { + /* Server */ + + /* Falsche Anzahl Parameter? */ + if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + target = Client_Search( Req->prefix ); + if( ! target ) + { + Log( LOG_ERR, "Got QUIT from %s for unknown client!?", Client_ID( Client )); + return CONNECTED; + } + + if( Req->argc == 0 ) Client_Destroy( target, "Got QUIT command.", NULL ); + else Client_Destroy( target, "Got QUIT command.", Req->argv[0] ); + + return CONNECTED; + } + else return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); +} /* IRC_QUIT */ + + +GLOBAL BOOLEAN IRC_SQUIT( CLIENT *Client, REQUEST *Req ) +{ + CLIENT *target; + + assert( Client != NULL ); + assert( Req != NULL ); + + /* SQUIT ist nur fuer Server erlaubt */ + if( Client_Type( Client ) != CLIENT_SERVER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); + + /* Falsche Anzahl Parameter? */ + if( Req->argc != 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + target = Client_GetFromID( Req->argv[0] ); + if( ! target ) + { + Log( LOG_ERR, "Got SQUIT from %s for unknown server \%s\"!?", Client_ID( Client ), Req->argv[0] ); + return CONNECTED; + } + + if( target == Client ) Log( LOG_DEBUG, "Got SQUIT from %s: %s", Client_ID( Client ), Req->argv[1] ); + else Log( LOG_DEBUG, "Got SQUIT from %s for %s: %s", Client_ID( Client ), Client_ID( target ), Req->argv[1] ); + + /* SQUIT an alle Server weiterleiten */ + IRC_WriteStrServers( Client, "SQUIT %s :%s", Req->argv[0], Req->argv[1] ); + + if( Client_Conn( target ) > NONE ) + { + if( Req->argv[1][0] ) Conn_Close( Client_Conn( target ), "Got SQUIT command.", Req->argv[1], TRUE ); + else Conn_Close( Client_Conn( target ), "Got SQUIT command.", NULL, TRUE ); + return DISCONNECTED; + } + else + { + Client_Destroy( target, "Got SQUIT command.", Req->argv[1] ); + return CONNECTED; + } +} /* IRC_SQUIT */ + + +GLOBAL BOOLEAN IRC_PING( CLIENT *Client, REQUEST *Req ) +{ + CLIENT *target, *from; + + assert( Client != NULL ); + assert( Req != NULL ); + + if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); + + /* Falsche Anzahl Parameter? */ + if( Req->argc < 1 ) return IRC_WriteStrClient( Client, ERR_NOORIGIN_MSG, Client_ID( Client )); + if( Req->argc > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + if( Req->argc == 2 ) + { + /* es wurde ein Ziel-Client angegeben */ + target = Client_GetFromID( Req->argv[1] ); + if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[1] ); + if( target != Client_ThisServer( )) + { + /* ok, forwarden */ + if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_GetFromID( Req->prefix ); + else from = Client; + if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->prefix ); + return IRC_WriteStrClientPrefix( Client_NextHop( target ), from, "PING %s :%s", Client_ID( from ), Req->argv[1] ); + } + } + + Log( LOG_DEBUG, "Connection %d: got PING, sending PONG ...", Client_Conn( Client )); + return IRC_WriteStrClient( Client, "PONG %s :%s", Client_ID( Client_ThisServer( )), Client_ID( Client )); +} /* IRC_PING */ + + +GLOBAL BOOLEAN IRC_PONG( CLIENT *Client, REQUEST *Req ) +{ + CLIENT *target, *from; + + assert( Client != NULL ); + assert( Req != NULL ); + + if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); + + /* Falsche Anzahl Parameter? */ + if( Req->argc < 1 ) return IRC_WriteStrClient( Client, ERR_NOORIGIN_MSG, Client_ID( Client )); + if( Req->argc > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + /* forwarden? */ + if( Req->argc == 2 ) + { + target = Client_GetFromID( Req->argv[1] ); + if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[1] ); + if( target != Client_ThisServer( )) + { + /* ok, forwarden */ + if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_GetFromID( Req->prefix ); + else from = Client; + if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->prefix ); + return IRC_WriteStrClientPrefix( Client_NextHop( target ), from, "PONG %s :%s", Client_ID( from ), Req->argv[1] ); + } + } + + /* Der Connection-Timestamp wurde schon beim Lesen aus dem Socket + * aktualisiert, daher muss das hier nicht mehr gemacht werden. */ + + if( Client_Conn( Client ) > NONE ) Log( LOG_DEBUG, "Connection %d: received PONG. Lag: %ld seconds.", Client_Conn( Client ), time( NULL ) - Conn_LastPing( Client_Conn( Client ))); + else Log( LOG_DEBUG, "Connection %d: received PONG.", Client_Conn( Client )); + + return CONNECTED; +} /* IRC_PONG */ + + +GLOBAL BOOLEAN IRC_MOTD( CLIENT *Client, REQUEST *Req ) +{ + assert( Client != NULL ); + assert( Req != NULL ); + + if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); + + /* Falsche Anzahl Parameter? */ + if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + return Show_MOTD( Client ); +} /* IRC_MOTD */ + + +GLOBAL BOOLEAN IRC_PRIVMSG( CLIENT *Client, REQUEST *Req ) +{ + CLIENT *to, *from; + CHANNEL *chan; + + assert( Client != NULL ); + assert( Req != NULL ); + + if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); + + /* Falsche Anzahl Parameter? */ + if( Req->argc == 0 ) return IRC_WriteStrClient( Client, ERR_NORECIPIENT_MSG, Client_ID( Client ), Req->command ); + if( Req->argc == 1 ) return IRC_WriteStrClient( Client, ERR_NOTEXTTOSEND_MSG, Client_ID( Client )); + if( Req->argc > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_GetFromID( Req->prefix ); + else from = Client; + if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix ); + + to = Client_Search( Req->argv[0] ); + if( to ) + { + /* Okay, Ziel ist ein User */ + if( Client_Conn( from ) > NONE ) Conn_UpdateIdle( Client_Conn( from )); + return IRC_WriteStrClientPrefix( to, from, "PRIVMSG %s :%s", Client_ID( to ), Req->argv[1] ); + } + + chan = Channel_Search( Req->argv[0] ); + if( chan ) + { + /* Okay, Ziel ist ein Channel */ + if( Client_Conn( from ) > NONE ) Conn_UpdateIdle( Client_Conn( from )); + return IRC_WriteStrChannelPrefix( Client, chan, from, TRUE, "PRIVMSG %s :%s", Req->argv[0], Req->argv[1] ); + } + + return IRC_WriteStrClient( from, ERR_NOSUCHNICK_MSG, Client_ID( from ), Req->argv[0] ); +} /* IRC_PRIVMSG */ + + +GLOBAL BOOLEAN IRC_NOTICE( CLIENT *Client, REQUEST *Req ) +{ + CLIENT *to, *from; + + assert( Client != NULL ); + assert( Req != NULL ); + + if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); + + /* Falsche Anzahl Parameter? */ + if( Req->argc != 2 ) return CONNECTED; + + if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_GetFromID( Req->prefix ); + else from = Client; + if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix ); + + to = Client_Search( Req->argv[0] ); + if( to ) + { + /* Okay, Ziel ist ein User */ + return IRC_WriteStrClientPrefix( to, from, "NOTICE %s :%s", Client_ID( to ), Req->argv[1] ); + } + else return CONNECTED; +} /* IRC_NOTICE */ + + +GLOBAL BOOLEAN IRC_MODE( CLIENT *Client, REQUEST *Req ) +{ + CHAR *mode_ptr, the_modes[CLIENT_MODE_LEN], x[2]; + CLIENT *cl, *chan_cl, *prefix; + BOOLEAN set, ok; + CHANNEL *chan; + + assert( Client != NULL ); + assert( Req != NULL ); + + cl = chan_cl = prefix = NULL; + chan = NULL; + + /* Valider Client? */ + if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); + + /* Keine Parameter? */ + if( Req->argc < 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + /* Ziel suchen: Client bzw. Channel */ + if( Client_IsValidNick( Req->argv[0] )) cl = Client_Search( Req->argv[0] ); + if( Channel_IsValidName( Req->argv[0] )) chan = Channel_Search( Req->argv[0] ); + + /* Kein Ziel gefunden? */ + if(( ! cl ) && ( ! chan )) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[0] ); + + assert(( cl && chan ) != TRUE ); + + /* Falsche Anzahl Parameter? */ + if(( cl ) && ( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + if(( chan ) && ( Req->argc > 3 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + /* Client ermitteln, wenn bei Channel-Modes mit 3 Parametern */ + if(( chan ) && (Req->argc == 3 )) + { + chan_cl = Client_Search( Req->argv[2] ); + if( ! chan_cl ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[0] ); + } + + /* Wenn Anfragender ein User ist: Zugriff erlaubt? */ + if( Client_Type( Client ) == CLIENT_USER ) + { + if( cl ) + { + /* MODE ist nur fuer sich selber zulaessig! */ + if( cl != Client ) return IRC_WriteStrClient( Client, ERR_USERSDONTMATCH_MSG, Client_ID( Client )); + } + if( chan ) + { + /* Darf der User die Channel-Modes ermitteln? */ + } + } + + /* Werden die Modes "nur" erfragt? */ + if(( cl ) && ( Req->argc == 1 )) return IRC_WriteStrClient( Client, RPL_UMODEIS_MSG, Client_ID( Client ), Client_Modes( cl )); + if(( chan ) && ( Req->argc == 1 )) return IRC_WriteStrClient( Client, RPL_CHANNELMODEIS_MSG, Client_ID( Client ), Channel_Name( chan ), Channel_Modes( chan )); + + mode_ptr = Req->argv[1]; + + /* Sollen Modes gesetzt oder geloescht werden? */ + if( cl ) + { + if( *mode_ptr == '+' ) set = TRUE; + else if( *mode_ptr == '-' ) set = FALSE; + else return IRC_WriteStrClient( Client, ERR_UMODEUNKNOWNFLAG_MSG, Client_ID( Client )); + mode_ptr++; + } + else + { + if( *mode_ptr == '-' ) set = FALSE; + else set = TRUE; + if(( *mode_ptr == '-' ) || ( *mode_ptr == '+' )) mode_ptr++; + } + + /* Prefix fuer Antworten etc. ermitteln */ + if( Client_Type( Client ) == CLIENT_SERVER ) + { + prefix = Client_GetFromID( Req->prefix ); + if( ! prefix ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix ); + } + else prefix = Client; + + /* Reply-String mit Aenderungen vorbereiten */ + if( set ) strcpy( the_modes, "+" ); + else strcpy( the_modes, "-" ); + + ok = TRUE; + x[1] = '\0'; + while( *mode_ptr ) + { + x[0] = '\0'; + if( Client_Type( Client ) == CLIENT_SERVER ) + { + /* Befehl kommt von einem Server, daher + * trauen wir ihm "unbesehen" ... */ + x[0] = *mode_ptr; + } + else + { + /* Modes validieren */ + if( cl ) + { + /* User-Modes */ + switch( *mode_ptr ) + { + case 'i': + /* invisible */ + x[0] = 'i'; + break; + case 'r': + /* restricted (kann nur gesetzt werden) */ + if( set ) x[0] = 'r'; + else ok = IRC_WriteStrClient( Client, ERR_RESTRICTED_MSG, Client_ID( Client )); + break; + case 'o': + /* operator (kann nur geloescht werden) */ + if( ! set ) + { + Client_SetOperByMe( Client, FALSE ); + x[0] = 'o'; + } + else ok = IRC_WriteStrClient( Client, ERR_UMODEUNKNOWNFLAG_MSG, Client_ID( Client )); + break; + default: + Log( LOG_DEBUG, "Unknown mode \"%c%c\" from \"%s\"!?", set ? '+' : '-', *mode_ptr, Client_ID( Client )); + ok = IRC_WriteStrClient( Client, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID( Client ), set ? '+' : '-', *mode_ptr ); + x[0] = '\0'; + } + } + if( chan ) + { + /* Ist der User ein Channel Operator? */ + if( ! strchr( Channel_UserModes( chan, Client ), 'o' )) + { + Log( LOG_DEBUG, "Can't change modes: \"%s\" is not operator on %s!", Client_ID( Client ), Channel_Name( chan )); + ok = IRC_WriteStrClient( Client, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Client ), Channel_Name( chan )); + break; + } + + /* Channel-Modes oder Channel-User-Modes */ + if( chan_cl ) + { + /* Channel-User-Modes */ + switch( *mode_ptr ) + { + case 'o': + /* Channel Operator */ + x[0] = 'o'; + break; + case 'v': + /* Voice */ + x[0] = 'v'; + break; + default: + Log( LOG_DEBUG, "Unknown channel-user-mode \"%c%c\" from \"%s\" on \"%s\" at %s!?", set ? '+' : '-', *mode_ptr, Client_ID( Client ), Client_ID( chan_cl ), Channel_Name( chan )); + ok = IRC_WriteStrClient( Client, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID( Client ), set ? '+' : '-', *mode_ptr ); + x[0] = '\0'; + } + } + else + { + /* Channel-Modes */ + switch( *mode_ptr ) + { + case 'a': + /* Anonymous */ + x[0] = 'a'; + break; + case 'm': + /* Moderated */ + x[0] = 'm'; + break; + case 'n': + /* kein Schreiben in den Channel von aussen */ + x[0] = 'n'; + break; + case 'p': + /* Private */ + x[0] = 'p'; + break; + case 'q': + /* Quite */ + x[0] = 'q'; + break; + case 's': + /* Secret */ + x[0] = 's'; + break; + case 't': + /* Topic Lock */ + x[0] = 't'; + break; + default: + Log( LOG_DEBUG, "Unknown channel-mode \"%c%c\" from \"%s\" at %s!?", set ? '+' : '-', *mode_ptr, Client_ID( Client ), Channel_Name( chan )); + ok = IRC_WriteStrClient( Client, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID( Client ), set ? '+' : '-', *mode_ptr ); + x[0] = '\0'; + } + } + } + } + if( ! ok ) break; + + mode_ptr++; + if( ! x[0] ) continue; + + /* Okay, gueltigen Mode gefunden */ + if( cl ) + { + /* Es geht um User-Modes */ + if( set ) + { + /* Mode setzen. Wenn der Client ihn noch nicht hatte: merken */ + if( Client_ModeAdd( cl, x[0] )) strcat( the_modes, x ); + } + else + { + /* Modes geloescht. Wenn der Client ihn hatte: merken */ + if( Client_ModeDel( cl, x[0] )) strcat( the_modes, x ); + } + } + if( chan ) + { + /* Es geht um Channel-Modes oder Channel-User-Modes */ + if( chan_cl ) + { + /* Channel-User-Modes */ + if( set ) + { + /* Mode setzen. Wenn der Channel ihn noch nicht hatte: merken */ + if( Channel_UserModeAdd( chan, chan_cl, x[0] )) strcat( the_modes, x ); + } + else + { + /* Mode setzen. Wenn der Channel ihn noch nicht hatte: merken */ + if( Channel_UserModeDel( chan, chan_cl, x[0] )) strcat( the_modes, x ); + } + } + else + { + /* Channel-Mode */ + if( set ) + { + /* Mode setzen. Wenn der Channel ihn noch nicht hatte: merken */ + if( Channel_ModeAdd( chan, x[0] )) strcat( the_modes, x ); + } + else + { + /* Mode setzen. Wenn der Channel ihn noch nicht hatte: merken */ + if( Channel_ModeDel( chan, x[0] )) strcat( the_modes, x ); + } + } + } + } + + /* Wurden Modes geaendert? */ + if( the_modes[1] ) + { + if( cl ) + { + /* Client-Mode */ + if( Client_Type( Client ) == CLIENT_SERVER ) + { + /* Modes an andere Server forwarden */ + IRC_WriteStrServersPrefix( Client, prefix, "MODE %s :%s", Client_ID( cl ), the_modes ); + } + else + { + /* Bestaetigung an Client schicken & andere Server informieren */ + ok = IRC_WriteStrClientPrefix( Client, prefix, "MODE %s %s", Client_ID( cl ), the_modes ); + IRC_WriteStrServersPrefix( Client, prefix, "MODE %s :%s", Client_ID( cl ), the_modes ); + } + Log( LOG_DEBUG, "User \"%s\": Mode change, now \"%s\".", Client_Mask( cl ), Client_Modes( cl )); + } + if( chan ) + { + /* Channel-Modes oder Channel-User-Mode */ + if( chan_cl ) + { + /* Channel-User-Mode */ + if( Client_Type( Client ) == CLIENT_SERVER ) + { + /* Modes an andere Server und Channel-User forwarden */ + IRC_WriteStrServersPrefix( Client, prefix, "MODE %s %s :%s", Channel_Name( chan ), the_modes, Client_ID( chan_cl)); + IRC_WriteStrChannelPrefix( Client, chan, prefix, FALSE, "MODE %s %s %s", Channel_Name( chan ), the_modes, Client_ID( chan_cl)); + } + else + { + /* Bestaetigung an Client schicken & andere Server sowie Channel-User informieren */ + ok = IRC_WriteStrClientPrefix( Client, prefix, "MODE %s %s %s", Channel_Name( chan ), the_modes, Client_ID( chan_cl)); + IRC_WriteStrServersPrefix( Client, prefix, "MODE %s %s :%s", Channel_Name( chan ), the_modes, Client_ID( chan_cl)); + IRC_WriteStrChannelPrefix( Client, chan, prefix, FALSE, "MODE %s %s %s", Channel_Name( chan ), the_modes, Client_ID( chan_cl)); + } + Log( LOG_DEBUG, "User \"%s\" on %s: Mode change, now \"%s\".", Client_Mask( chan_cl), Channel_Name( chan ), Channel_UserModes( chan, chan_cl )); + } + else + { + /* Channel-Mode */ + if( Client_Type( Client ) == CLIENT_SERVER ) + { + /* Modes an andere Server und Channel-User forwarden */ + IRC_WriteStrServersPrefix( Client, prefix, "MODE %s :%s", Channel_Name( chan ), the_modes ); + IRC_WriteStrChannelPrefix( Client, chan, prefix, FALSE, "MODE %s %s", Channel_Name( chan ), the_modes ); + } + else + { + /* Bestaetigung an Client schicken & andere Server sowie Channel-User informieren */ + ok = IRC_WriteStrClientPrefix( Client, prefix, "MODE %s %s", Channel_Name( chan ), the_modes ); + IRC_WriteStrServersPrefix( Client, prefix, "MODE %s :%s", Channel_Name( chan ), the_modes ); + IRC_WriteStrChannelPrefix( Client, chan, prefix, FALSE, "MODE %s %s", Channel_Name( chan ), the_modes ); + } + Log( LOG_DEBUG, "Channel \"%s\": Mode change, now \"%s\".", Channel_Name( chan ), Channel_Modes( chan )); + } + } + } + + return ok; +} /* IRC_MODE */ + + +GLOBAL BOOLEAN IRC_OPER( CLIENT *Client, REQUEST *Req ) +{ + INT i; + + assert( Client != NULL ); + assert( Req != NULL ); + + if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); + + /* Falsche Anzahl Parameter? */ + if( Req->argc != 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + /* Operator suchen */ + for( i = 0; i < Conf_Oper_Count; i++) + { + if( Conf_Oper[i].name[0] && Conf_Oper[i].pwd[0] && ( strcmp( Conf_Oper[i].name, Req->argv[0] ) == 0 )) break; + } + if( i >= Conf_Oper_Count ) + { + Log( LOG_WARNING, "Got invalid OPER from \"%s\": Name \"%s\" not configured!", Client_Mask( Client ), Req->argv[0] ); + return IRC_WriteStrClient( Client, ERR_PASSWDMISMATCH_MSG, Client_ID( Client )); + } + + /* Stimmt das Passwort? */ + if( strcmp( Conf_Oper[i].pwd, Req->argv[1] ) != 0 ) + { + Log( LOG_WARNING, "Got invalid OPER from \"%s\": Bad password for \"%s\"!", Client_Mask( Client ), Conf_Oper[i].name ); + return IRC_WriteStrClient( Client, ERR_PASSWDMISMATCH_MSG, Client_ID( Client )); + } + + if( ! Client_HasMode( Client, 'o' )) + { + /* noch kein o-Mode gesetzt */ + Client_ModeAdd( Client, 'o' ); + if( ! IRC_WriteStrClient( Client, "MODE %s :+o", Client_ID( Client ))) return DISCONNECTED; + IRC_WriteStrServersPrefix( NULL, Client, "MODE %s :+o", Client_ID( Client )); + } + + if( ! Client_OperByMe( Client )) Log( LOG_NOTICE, "Got valid OPER from \"%s\", user is an IRC operator now.", Client_Mask( Client )); + + Client_SetOperByMe( Client, TRUE ); + return IRC_WriteStrClient( Client, RPL_YOUREOPER_MSG, Client_ID( Client )); +} /* IRC_OPER */ + + +GLOBAL BOOLEAN IRC_DIE( CLIENT *Client, REQUEST *Req ) +{ + assert( Client != NULL ); + assert( Req != NULL ); + + if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); + + /* Falsche Anzahl Parameter? */ + if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + if(( ! Client_HasMode( Client, 'o' )) || ( ! Client_OperByMe( Client ))) return IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client )); + + Log( LOG_NOTICE, "Got DIE command from \"%s\", going down!", Client_Mask( Client )); + NGIRCd_Quit = TRUE; + return CONNECTED; +} /* IRC_DIE */ + + +GLOBAL BOOLEAN IRC_RESTART( CLIENT *Client, REQUEST *Req ) +{ + assert( Client != NULL ); + assert( Req != NULL ); + + if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); + + /* Falsche Anzahl Parameter? */ + if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + if(( ! Client_HasMode( Client, 'o' )) || ( ! Client_OperByMe( Client ))) return IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client )); + + Log( LOG_NOTICE, "Got RESTART command from \"%s\", going down!", Client_Mask( Client )); + NGIRCd_Restart = TRUE; + return CONNECTED; +} /* IRC_RESTART */ + + +GLOBAL BOOLEAN IRC_NAMES( CLIENT *Client, REQUEST *Req ) +{ + CHAR rpl[COMMAND_LEN]; + CLIENT *c; + + assert( Client != NULL ); + assert( Req != NULL ); + + if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); + + /* Falsche Anzahl Parameter? */ + if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + /* Noch alle User ausgeben, die in keinem Channel sind */ + rpl[0] = '\0'; + c = Client_First( ); + while( c ) + { + if( Client_Type( c ) == CLIENT_USER ) + { + /* Okay, das ist ein User */ + strcat( rpl, Client_ID( c )); + strcat( rpl, " " ); + } + + /* Antwort zu lang? Splitten. */ + if( strlen( rpl ) > 480 ) + { + if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0'; + if( ! IRC_WriteStrClient( Client, RPL_NAMREPLY_MSG, Client_ID( Client ), "*", "*", rpl )) return DISCONNECTED; + rpl[0] = '\0'; + } + + c = Client_Next( c ); + } + if( rpl[0] ) + { + /* es wurden User gefunden */ + if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0'; + if( ! IRC_WriteStrClient( Client, RPL_NAMREPLY_MSG, Client_ID( Client ), "*", "*", rpl )) return DISCONNECTED; + } + return IRC_WriteStrClient( Client, RPL_ENDOFNAMES_MSG, Client_ID( Client ), "*" ); +} /* IRC_NAMES */ + + +GLOBAL BOOLEAN IRC_ISON( CLIENT *Client, REQUEST *Req ) +{ + CHAR rpl[COMMAND_LEN]; + CLIENT *c; + CHAR *ptr; + INT i; + + assert( Client != NULL ); + assert( Req != NULL ); + + if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); + + /* Falsche Anzahl Parameter? */ + if(( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + strcpy( rpl, RPL_ISON_MSG ); + for( i = 0; i < Req->argc; i++ ) + { + ptr = strtok( Req->argv[i], " " ); + while( ptr ) + { + ngt_TrimStr( ptr ); + c = Client_GetFromID( ptr ); + if( c && ( Client_Type( c ) == CLIENT_USER )) + { + /* Dieser Nick ist "online" */ + strcat( rpl, ptr ); + strcat( rpl, " " ); + } + ptr = strtok( NULL, " " ); + } + } + if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0'; + + return IRC_WriteStrClient( Client, rpl, Client_ID( Client ) ); +} /* IRC_ISON */ + + +GLOBAL BOOLEAN IRC_WHOIS( CLIENT *Client, REQUEST *Req ) +{ + CLIENT *from, *target, *c; + CHAR str[LINE_LEN + 1], *ptr = NULL; + CL2CHAN *cl2chan; + CHANNEL *chan; + + assert( Client != NULL ); + assert( Req != NULL ); + + if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); + + /* Falsche Anzahl Parameter? */ + if(( Req->argc < 1 ) || ( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + /* Client suchen */ + c = Client_GetFromID( Req->argv[Req->argc - 1] ); + if(( ! c ) || ( Client_Type( c ) != CLIENT_USER )) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[Req->argc - 1] ); + + /* Empfaenger des WHOIS suchen */ + if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_GetFromID( Req->prefix ); + else from = Client; + if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix ); + + /* Forwarden an anderen Server? */ + if( Req->argc > 1 ) + { + /* angegebenen Ziel-Server suchen */ + target = Client_GetFromID( Req->argv[1] ); + if( ! target ) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[1] ); + ptr = Req->argv[1]; + } + else target = Client_ThisServer( ); + + assert( target != NULL ); + + if(( Client_NextHop( target ) != Client_ThisServer( )) && ( Client_Type( Client_NextHop( target )) == CLIENT_SERVER )) return IRC_WriteStrClientPrefix( target, from, "WHOIS %s :%s", Req->argv[0], ptr ); + + /* Nick, User und Name */ + if( ! IRC_WriteStrClient( from, RPL_WHOISUSER_MSG, Client_ID( from ), Client_ID( c ), Client_User( c ), Client_Hostname( c ), Client_Info( c ))) return DISCONNECTED; + + /* Server */ + 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; + + /* Channels */ + sprintf( str, RPL_WHOISCHANNELS_MSG, Client_ID( from ), Client_ID( c )); + cl2chan = Channel_FirstChannelOf( c ); + while( cl2chan ) + { + chan = Channel_GetChannel( cl2chan ); + assert( chan != NULL ); + + /* Channel-Name anhaengen */ + if( str[strlen( str ) - 1] != ':' ) strcat( str, " " ); + if( strchr( Channel_UserModes( chan, c ), 'v' )) strcat( str, "+" ); + if( strchr( Channel_UserModes( chan, c ), 'o' )) strcat( str, "@" ); + strcat( str, Channel_Name( chan )); + + if( strlen( str ) > ( LINE_LEN - CHANNEL_NAME_LEN - 4 )) + { + /* Zeile wird zu lang: senden! */ + if( ! IRC_WriteStrClient( Client, str )) return DISCONNECTED; + sprintf( str, RPL_WHOISCHANNELS_MSG, Client_ID( from ), Client_ID( c )); + } + + /* naechstes Mitglied suchen */ + cl2chan = Channel_NextChannelOf( c, cl2chan ); + } + if( str[strlen( str ) - 1] != ':') + { + /* Es sind noch Daten da, die gesendet werden muessen */ + if( ! IRC_WriteStrClient( Client, str )) return DISCONNECTED; + } + + /* IRC-Operator? */ + if( Client_HasMode( c, 'o' )) + { + if( ! IRC_WriteStrClient( from, RPL_WHOISOPERATOR_MSG, Client_ID( from ), Client_ID( c ))) return DISCONNECTED; + } + + /* Idle (nur lokale Clients) */ + if( Client_Conn( c ) > NONE ) + { + if( ! IRC_WriteStrClient( from, RPL_WHOISIDLE_MSG, Client_ID( from ), Client_ID( c ), Conn_GetIdle( Client_Conn ( c )))) return DISCONNECTED; + } + + /* End of Whois */ + return IRC_WriteStrClient( from, RPL_ENDOFWHOIS_MSG, Client_ID( from ), Client_ID( c )); +} /* IRC_WHOIS */ + + +GLOBAL BOOLEAN IRC_USERHOST( CLIENT *Client, REQUEST *Req ) +{ + CHAR rpl[COMMAND_LEN]; + CLIENT *c; + INT max, i; + + assert( Client != NULL ); + assert( Req != NULL ); + + if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); + + /* Falsche Anzahl Parameter? */ + if(( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + if( Req->argc > 5 ) max = 5; + else max = Req->argc; + + strcpy( rpl, RPL_USERHOST_MSG ); + for( i = 0; i < max; i++ ) + { + c = Client_GetFromID( Req->argv[i] ); + if( c && ( Client_Type( c ) == CLIENT_USER )) + { + /* Dieser Nick ist "online" */ + strcat( rpl, Client_ID( c )); + if( Client_HasMode( c, 'o' )) strcat( rpl, "*" ); + strcat( rpl, "=" ); + if( Client_HasMode( c, 'a' )) strcat( rpl, "-" ); + else strcat( rpl, "+" ); + strcat( rpl, Client_User( c )); + strcat( rpl, "@" ); + strcat( rpl, Client_Hostname( c )); + strcat( rpl, " " ); + } + } + if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0'; + + return IRC_WriteStrClient( Client, rpl, Client_ID( Client ) ); +} /* IRC_USERHOST */ + + +GLOBAL BOOLEAN IRC_ERROR( CLIENT *Client, REQUEST *Req ) +{ + assert( Client != NULL ); + assert( Req != NULL ); + + if( Req->argc < 1 ) Log( LOG_NOTICE, "Got ERROR from \"%s\"!", Client_Mask( Client )); + else Log( LOG_NOTICE, "Got ERROR from \"%s\": %s!", Client_Mask( Client ), Req->argv[0] ); + + return CONNECTED; +} /* IRC_ERROR */ + + +GLOBAL BOOLEAN IRC_LUSERS( CLIENT *Client, REQUEST *Req ) +{ + CLIENT *target, *from; + + assert( Client != NULL ); + assert( Req != NULL ); + + if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); + + /* Falsche Anzahl Parameter? */ + if(( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + /* Absender ermitteln */ + if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_GetFromID( Req->prefix ); + else from = Client; + if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix ); + + /* An anderen Server forwarden? */ + if( Req->argc == 2 ) + { + target = Client_GetFromID( Req->argv[1] ); + if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[1] ); + else if( target != Client_ThisServer( )) return IRC_WriteStrClientPrefix( target, from, "LUSERS %s %s", Req->argv[0], Req->argv[1] ); + } + + /* Wer ist der Absender? */ + if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_GetFromID( Req->prefix ); + else target = Client; + if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix ); + + Send_LUSERS( target ); + + return CONNECTED; +} /* IRC_LUSERS */ + + +GLOBAL BOOLEAN IRC_LINKS( CLIENT *Client, REQUEST *Req ) +{ + CLIENT *target, *from, *c; + CHAR *mask; + + assert( Client != NULL ); + assert( Req != NULL ); + + if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); + + /* Falsche Anzahl Parameter? */ + if(( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + /* Server-Mask ermitteln */ + if( Req->argc > 0 ) mask = Req->argv[Req->argc - 1]; + else mask = "*"; + + /* Absender ermitteln */ + if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_GetFromID( Req->prefix ); + else from = Client; + if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix ); + + /* An anderen Server forwarden? */ + if( Req->argc == 2 ) + { + target = Client_GetFromID( Req->argv[0] ); + if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[0] ); + else if( target != Client_ThisServer( )) return IRC_WriteStrClientPrefix( target, from, "LINKS %s %s", Req->argv[0], Req->argv[1] ); + } + + /* Wer ist der Absender? */ + if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_GetFromID( Req->prefix ); + else target = Client; + if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix ); + + c = Client_First( ); + while( c ) + { + if( Client_Type( c ) == CLIENT_SERVER ) + { + if( ! IRC_WriteStrClient( target, RPL_LINKS_MSG, Client_ID( target ), Client_ID( c ), Client_ID( Client_TopServer( c ) ? Client_TopServer( c ) : Client_ThisServer( )), Client_Hops( c ), Client_Info( c ))) return DISCONNECTED; + } + c = Client_Next( c ); + } + + return IRC_WriteStrClient( target, RPL_ENDOFLINKS_MSG, Client_ID( target ), mask ); +} /* IRC_LINKS */ + + +GLOBAL BOOLEAN IRC_JOIN( CLIENT *Client, REQUEST *Req ) +{ + CHAR *channame, *flags, modes[8]; + BOOLEAN is_new_chan; + CLIENT *target; + CHANNEL *chan; + + assert( Client != NULL ); + assert( Req != NULL ); + + if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); + + /* Falsche Anzahl Parameter? */ + if(( Req->argc > 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + /* Wer ist der Absender? */ + if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_GetFromID( Req->prefix ); + else target = Client; + if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix ); + + /* Channel-Namen durchgehen */ + channame = strtok( Req->argv[0], "," ); + while( channame ) + { + /* wird der Channel neu angelegt? */ + flags = NULL; + + if( Channel_Search( channame )) is_new_chan = FALSE; + else is_new_chan = TRUE; + + /* Hat ein Server Channel-User-Modes uebergeben? */ + if( Client_Type( Client ) == CLIENT_SERVER ) + { + /* Channel-Flags extrahieren */ + flags = strchr( channame, 0x7 ); + if( flags ) *flags++ = '\0'; + } + + /* neuer Channel udn lokaler Client? */ + if( is_new_chan && ( Client_Type( Client ) == CLIENT_USER )) + { + /* Dann soll der Client Channel-Operator werden! */ + flags = "o"; + } + + /* Channel joinen (und ggf. anlegen) */ + if( ! Channel_Join( target, channame )) + { + /* naechsten Namen ermitteln */ + channame = strtok( NULL, "," ); + continue; + } + chan = Channel_Search( channame ); + assert( chan != NULL ); + + /* Modes setzen (wenn vorhanden) */ + while( flags && *flags ) + { + Channel_UserModeAdd( chan, target, *flags ); + flags++; + } + + /* Muessen Modes an andere Server gemeldet werden? */ + strcpy( &modes[1], Channel_UserModes( chan, target )); + if( modes[1] ) modes[0] = 0x7; + else modes[0] = '\0'; + + /* An andere Server weiterleiten */ + IRC_WriteStrServersPrefix( Client, target, "JOIN :%s%s", channame, modes ); + + /* im Channel bekannt machen */ + IRC_WriteStrChannelPrefix( Client, chan, target, FALSE, "JOIN :%s", channame ); + if( modes[1] ) + { + /* Modes im Channel bekannt machen */ + IRC_WriteStrChannelPrefix( Client, chan, target, FALSE, "MODE %s %s :%s", channame, modes, Client_ID( target )); + } + + if( Client_Type( Client ) == CLIENT_USER ) + { + /* an Client bestaetigen */ + IRC_WriteStrClientPrefix( Client, target, "JOIN :%s", channame ); + /* Topic an Client schicken */ + IRC_WriteStrClient( Client, RPL_TOPIC_MSG, Client_ID( Client ), channame, "What a wonderful channel!" ); + /* Mitglieder an Client Melden */ + Send_NAMES( Client, chan ); + } + + /* naechsten Namen ermitteln */ + channame = strtok( NULL, "," ); + } + return CONNECTED; +} /* IRC_JOIN */ + + +GLOBAL BOOLEAN IRC_PART( CLIENT *Client, REQUEST *Req ) +{ + CLIENT *target; + CHAR *chan; + + assert( Client != NULL ); + assert( Req != NULL ); + + if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); + + /* Falsche Anzahl Parameter? */ + if(( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + /* Wer ist der Absender? */ + if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_GetFromID( Req->prefix ); + else target = Client; + if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix ); + + /* Channel-Namen durchgehen */ + chan = strtok( Req->argv[0], "," ); + while( chan ) + { + if( ! Channel_Part( target, Client, chan, Req->argc > 1 ? Req->argv[1] : Client_ID( target ))) + { + /* naechsten Namen ermitteln */ + chan = strtok( NULL, "," ); + continue; + } + + /* naechsten Namen ermitteln */ + chan = strtok( NULL, "," ); + } + return CONNECTED; +} /* IRC_PART */ + + +GLOBAL BOOLEAN IRC_VERSION( CLIENT *Client, REQUEST *Req ) +{ + CLIENT *target; + + assert( Client != NULL ); + assert( Req != NULL ); + + /* Falsche Anzahl Parameter? */ + if(( Req->argc > 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + /* Ziel suchen */ + if( Req->argc == 1 ) target = Client_GetFromID( Req->argv[0] ); + else target = Client_ThisServer( ); + + /* An anderen Server weiterleiten? */ + if( target != Client_ThisServer( )) + { + if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[0] ); + IRC_WriteStrClientPrefix( Client_NextHop( target ), Client, "VERSION %s", Req->argv[0] ); + return CONNECTED; + } + + return IRC_WriteStrClient( Client, RPL_VERSION_MSG, Client_ID( Client ), NGIRCd_DebugLevel, Conf_ServerName, NGIRCd_VersionAddition( )); +} /* IRC_VERSION */ + + +GLOBAL BOOLEAN IRC_KILL( CLIENT *Client, REQUEST *Req ) +{ + CLIENT *prefix, *c; + + assert( Client != NULL ); + assert( Req != NULL ); + + if( Client_Type( Client ) != CLIENT_SERVER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); + + /* Falsche Anzahl Parameter? */ + if(( Req->argc != 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + prefix = Client_GetFromID( Req->prefix ); + if( ! prefix ) + { + Log( LOG_WARNING, "Got KILL with invalid prefix: \"%s\"!", Req->prefix ); + prefix = Client_ThisServer( ); + } + + Log( LOG_NOTICE, "Got KILL command from \"%s\" for \"%s\": %s", Client_Mask( prefix ), Req->argv[0], Req->argv[1] ); + + /* andere Server benachrichtigen */ + IRC_WriteStrServersPrefix( Client, prefix, "KILL %s :%s", Req->argv[0], Req->argv[1] ); + + /* haben wir selber einen solchen Client? */ + c = Client_GetFromID( Req->argv[0] ); + if( c && ( Client_Conn( c ) != NONE )) Conn_Close( Client_Conn( c ), NULL, Req->argv[1], TRUE ); + + return CONNECTED; +} /* IRC_KILL */ + + +LOCAL BOOLEAN Hello_User( CLIENT *Client ) +{ + assert( Client != NULL ); + + /* Passwort ueberpruefen */ + if( strcmp( Client_Password( Client ), Conf_ServerPwd ) != 0 ) + { + /* Falsches Passwort */ + Log( LOG_ERR, "User \"%s\" rejected (connection %d): Bad password!", Client_Mask( Client ), Client_Conn( Client )); + Conn_Close( Client_Conn( Client ), NULL, "Bad password", TRUE ); + return DISCONNECTED; + } + + Log( LOG_NOTICE, "User \"%s\" registered (connection %d).", Client_Mask( Client ), Client_Conn( Client )); + + /* Andere Server informieren */ + 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 )); + + if( ! IRC_WriteStrClient( Client, RPL_WELCOME_MSG, Client_ID( Client ), Client_Mask( Client ))) return FALSE; + if( ! IRC_WriteStrClient( Client, RPL_YOURHOST_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( )))) return FALSE; + if( ! IRC_WriteStrClient( Client, RPL_CREATED_MSG, Client_ID( Client ), NGIRCd_StartStr )) return FALSE; + if( ! IRC_WriteStrClient( Client, RPL_MYINFO_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( )))) return FALSE; + + Client_SetType( Client, CLIENT_USER ); + + if( ! Send_LUSERS( Client )) return DISCONNECTED; + if( ! Show_MOTD( Client )) return DISCONNECTED; + + return CONNECTED; +} /* Hello_User */ + + +LOCAL BOOLEAN Show_MOTD( CLIENT *Client ) +{ + BOOLEAN ok; + CHAR line[127]; + FILE *fd; + + assert( Client != NULL ); + + fd = fopen( Conf_MotdFile, "r" ); + if( ! fd ) + { + Log( LOG_WARNING, "Can't read MOTD file \"%s\": %s", Conf_MotdFile, strerror( errno )); + return IRC_WriteStrClient( Client, ERR_NOMOTD_MSG, Client_ID( Client ) ); + } + + IRC_WriteStrClient( Client, RPL_MOTDSTART_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( ))); + while( TRUE ) + { + if( ! fgets( line, 126, fd )) break; + if( line[strlen( line ) - 1] == '\n' ) line[strlen( line ) - 1] = '\0'; + if( ! IRC_WriteStrClient( Client, RPL_MOTD_MSG, Client_ID( Client ), line )) + { + fclose( fd ); + return FALSE; + } + } + ok = IRC_WriteStrClient( Client, RPL_ENDOFMOTD_MSG, Client_ID( Client ) ); + + fclose( fd ); + + return ok; +} /* Show_MOTD */ + + +LOCAL VOID Kill_Nick( CHAR *Nick, CHAR *Reason ) +{ + CLIENT *c; + + assert( Nick != NULL ); + assert( Reason != NULL ); + + Log( LOG_ERR, "User(s) with nick \"%s\" will be disconnected: %s", Nick, Reason ); + + /* andere Server benachrichtigen */ + IRC_WriteStrServers( NULL, "KILL %s :%s", Nick, Reason ); + + /* Ggf. einen eigenen Client toeten */ + c = Client_GetFromID( Nick ); + if( c && ( Client_Conn( c ) != NONE )) Conn_Close( Client_Conn( c ), NULL, Reason, TRUE ); +} /* Kill_Nick */ + + +LOCAL BOOLEAN Send_NAMES( CLIENT *Client, CHANNEL *Chan ) +{ + CHAR str[LINE_LEN + 1]; + CL2CHAN *cl2chan; + CLIENT *cl; + + assert( Client != NULL ); + assert( Chan != NULL ); + + /* Alle Mitglieder suchen */ + sprintf( str, RPL_NAMREPLY_MSG, Client_ID( Client ), "=", Channel_Name( Chan )); + cl2chan = Channel_FirstMember( Chan ); + while( cl2chan ) + { + cl = Channel_GetClient( cl2chan ); + + /* Nick anhaengen */ + if( str[strlen( str ) - 1] != ':' ) strcat( str, " " ); + if( strchr( Channel_UserModes( Chan, cl ), 'v' )) strcat( str, "+" ); + if( strchr( Channel_UserModes( Chan, cl ), 'o' )) strcat( str, "@" ); + strcat( str, Client_ID( cl )); + + if( strlen( str ) > ( LINE_LEN - CLIENT_NICK_LEN - 4 )) + { + /* Zeile wird zu lang: senden! */ + if( ! IRC_WriteStrClient( Client, str )) return DISCONNECTED; + sprintf( str, RPL_NAMREPLY_MSG, Client_ID( Client ), "=", Channel_Name( Chan )); + } + + /* naechstes Mitglied suchen */ + cl2chan = Channel_NextMember( Chan, cl2chan ); + } + if( str[strlen( str ) - 1] != ':') + { + /* Es sind noch Daten da, die gesendet werden muessen */ + if( ! IRC_WriteStrClient( Client, str )) return DISCONNECTED; + } + + /* Ende anzeigen */ + IRC_WriteStrClient( Client, RPL_ENDOFNAMES_MSG, Client_ID( Client ), Channel_Name( Chan )); + + return CONNECTED; +} /* Send_NAMES */ + + +LOCAL BOOLEAN Send_LUSERS( CLIENT *Client ) +{ + INT cnt; + + assert( Client != NULL ); + + /* Users, Services und Serevr im Netz */ + if( ! IRC_WriteStrClient( Client, RPL_LUSERCLIENT_MSG, Client_ID( Client ), Client_UserCount( ), Client_ServiceCount( ), Client_ServerCount( ))) return DISCONNECTED; + + /* IRC-Operatoren im Netz */ + cnt = Client_OperCount( ); + if( cnt > 0 ) + { + if( ! IRC_WriteStrClient( Client, RPL_LUSEROP_MSG, Client_ID( Client ), cnt )) return DISCONNECTED; + } + + /* Unbekannt Verbindungen */ + cnt = Client_UnknownCount( ); + if( cnt > 0 ) + { + if( ! IRC_WriteStrClient( Client, RPL_LUSERUNKNOWN_MSG, Client_ID( Client ), cnt )) return DISCONNECTED; + } + + /* Channels im Netz */ + if( ! IRC_WriteStrClient( Client, RPL_LUSERCHANNELS_MSG, Client_ID( Client ), Channel_Count( ))) return DISCONNECTED; + + /* Channels im Netz */ + if( ! IRC_WriteStrClient( Client, RPL_LUSERME_MSG, Client_ID( Client ), Client_MyUserCount( ), Client_MyServiceCount( ), Client_MyServerCount( ))) return DISCONNECTED; + + return CONNECTED; +} /* Send_LUSERS */ + + +CHAR *Get_Prefix( CLIENT *Target, CLIENT *Client ) +{ + assert( Target != NULL ); + assert( Client != NULL ); + + if( Client_Type( Target ) == CLIENT_SERVER ) return Client_ID( Client ); + else return Client_Mask( Client ); +} /* Get_Prefix */ /* -eof- */