2 * ngIRCd -- The Next Generation IRC Daemon
3 * Copyright (c)2001 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 comBase beteiligten Autoren finden Sie in der Datei AUTHORS.
12 * $Id: irc.c,v 1.4 2001/12/25 19:19:30 alex Exp $
17 * Revision 1.4 2001/12/25 19:19:30 alex
18 * - bessere Fehler-Abfragen, diverse Bugfixes.
19 * - Nicks werden nur einmal vergeben :-)
20 * - /MOTD wird unterstuetzt.
22 * Revision 1.3 2001/12/24 01:34:06 alex
23 * - USER und NICK wird nun in beliebiger Reihenfolge akzeptiert (wg. BitchX)
24 * - MOTD-Ausgabe begonnen zu implementieren.
26 * Revision 1.2 2001/12/23 21:57:16 alex
27 * - erste IRC-Befehle zu implementieren begonnen.
29 * Revision 1.1 2001/12/14 08:13:43 alex
30 * - neues Modul begonnen :-)
52 #define CONNECTED TRUE
53 #define DISCONNECTED FALSE
56 LOCAL BOOLEAN Check_Valid_User( CLIENT *Client );
58 LOCAL BOOLEAN Hello_User( CLIENT *Client );
59 LOCAL BOOLEAN Show_MOTD( CLIENT *Client );
62 GLOBAL VOID IRC_Init( VOID )
67 GLOBAL VOID IRC_Exit( VOID )
72 GLOBAL BOOLEAN IRC_WriteStr_Client( CLIENT *Client, CLIENT *Prefix, CHAR *Format, ... )
74 /* Text an Clients, lokal bzw. remote, senden. */
77 BOOLEAN ok = CONNECTED;
80 assert( Client != NULL );
81 assert( Format != NULL );
83 va_start( ap, Format );
85 if( Client->conn_id != NONE )
88 vsnprintf( buffer, 1000, Format, ap );
89 if( Prefix ) ok = Conn_WriteStr( Client->conn_id, ":%s %s", Prefix->host, buffer );
90 else ok = Conn_WriteStr( Client->conn_id, buffer );
95 Log( LOG_DEBUG, "not implemented: IRC_WriteStr_Client()" );
100 } /* IRC_WriteStr_Client */
103 GLOBAL BOOLEAN IRC_PASS( CLIENT *Client, REQUEST *Req )
105 assert( Client != NULL );
106 assert( Req != NULL );
108 return IRC_WriteStr_Client( Client, This_Server, ERR_UNKNOWNCOMMAND_MSG, Req->command );
112 GLOBAL BOOLEAN IRC_NICK( CLIENT *Client, REQUEST *Req )
116 assert( Client != NULL );
117 assert( Req != NULL );
119 if( Client->type != CLIENT_SERVER && Client->type != CLIENT_SERVICE )
121 /* Falsche Anzahl Parameter? */
122 if( Req->argc != 1 ) return IRC_WriteStr_Client( Client, This_Server, ERR_NEEDMOREPARAMS_MSG );
125 if( strlen( Req->argv[0] ) > CLIENT_NICK_LEN ) return IRC_WriteStr_Client( Client, This_Server, ERR_ERRONEUSNICKNAME_MSG, Req->argv[0] );
127 /* pruefen, ob Nick bereits vergeben */
131 if( strcasecmp( c->nick, Req->argv[0] ) == 0 )
133 /* den Nick gibt es bereits */
134 return IRC_WriteStr_Client( Client, This_Server, ERR_NICKNAMEINUSE_MSG, Req->argv[0] );
139 /* Client-Nick registrieren */
140 strcpy( Client->nick, Req->argv[0] );
142 if( Client->type != CLIENT_USER )
145 if( Client->type == CLIENT_GOTUSER ) return Hello_User( Client );
146 else Client->type = CLIENT_GOTNICK;
150 else return IRC_WriteStr_Client( Client, This_Server, ERR_ALREADYREGISTRED_MSG );
154 GLOBAL BOOLEAN IRC_USER( CLIENT *Client, REQUEST *Req )
156 assert( Client != NULL );
157 assert( Req != NULL );
159 if( Client->type == CLIENT_UNKNOWN || Client->type == CLIENT_GOTNICK || Client->type == CLIENT_GOTPASS )
161 /* Falsche Anzahl Parameter? */
162 if( Req->argc != 4 ) return IRC_WriteStr_Client( Client, This_Server, ERR_NEEDMOREPARAMS_MSG );
164 strncpy( Client->user, Req->argv[0], CLIENT_USER_LEN );
165 Client->user[CLIENT_USER_LEN] = '\0';
166 strncpy( Client->name, Req->argv[3], CLIENT_NAME_LEN );
167 Client->name[CLIENT_NAME_LEN] = '\0';
169 if( Client->type == CLIENT_GOTNICK ) return Hello_User( Client );
170 else Client->type = CLIENT_GOTUSER;
173 else if( Client->type == CLIENT_USER || Client->type == CLIENT_SERVER || Client->type == CLIENT_SERVICE )
175 return IRC_WriteStr_Client( Client, This_Server, ERR_ALREADYREGISTRED_MSG );
177 else return IRC_WriteStr_Client( Client, This_Server, ERR_NOTREGISTERED_MSG );
181 GLOBAL BOOLEAN IRC_MOTD( CLIENT *Client, REQUEST *Req )
183 assert( Client != NULL );
184 assert( Req != NULL );
186 if( ! Check_Valid_User( Client )) return CONNECTED;
188 /* Falsche Anzahl Parameter? */
189 if( Req->argc != 0 ) return IRC_WriteStr_Client( Client, This_Server, ERR_NEEDMOREPARAMS_MSG );
191 return Show_MOTD( Client );
195 LOCAL BOOLEAN Check_Valid_User( CLIENT *Client )
197 assert( Client != NULL );
199 if( Client->type != CLIENT_USER )
201 IRC_WriteStr_Client( Client, This_Server, ERR_NOTREGISTERED_MSG );
205 } /* Check_Valid_User */
208 LOCAL BOOLEAN Hello_User( CLIENT *Client )
210 Log( LOG_INFO, "User \"%s!%s@%s\" (%s) registered.", Client->nick, Client->user, Client->host, Client->name );
212 IRC_WriteStr_Client( Client, This_Server, RPL_WELCOME_MSG, Client->nick, Client->nick, Client->user, Client->host );
213 IRC_WriteStr_Client( Client, This_Server, RPL_YOURHOST_MSG, Client->nick, This_Server->host );
214 IRC_WriteStr_Client( Client, This_Server, RPL_CREATED_MSG, Client->nick );
215 IRC_WriteStr_Client( Client, This_Server, RPL_MYINFO_MSG, Client->nick, This_Server->host );
217 Client->type = CLIENT_USER;
219 return Show_MOTD( Client );
223 LOCAL BOOLEAN Show_MOTD( CLIENT *Client )
225 IRC_WriteStr_Client( Client, This_Server, RPL_MOTDSTART_MSG, Client->nick, This_Server->host );
226 IRC_WriteStr_Client( Client, This_Server, RPL_MOTD_MSG, Client->nick, "Some cool IRC server welcome message ;-)" );
227 return IRC_WriteStr_Client( Client, This_Server, RPL_ENDOFMOTD_MSG, Client->nick );