2001-12-14 09:13:43 +01:00
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/*
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* ngIRCd -- The Next Generation IRC Daemon
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* Copyright (c)2001 by Alexander Barton (alex@barton.de)
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*
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* Dieses Programm ist freie Software. Sie koennen es unter den Bedingungen
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* der GNU General Public License (GPL), wie von der Free Software Foundation
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* herausgegeben, weitergeben und/oder modifizieren, entweder unter Version 2
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* der Lizenz oder (wenn Sie es wuenschen) jeder spaeteren Version.
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* Naehere Informationen entnehmen Sie bitter der Datei COPYING. Eine Liste
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* der an comBase beteiligten Autoren finden Sie in der Datei AUTHORS.
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*
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2001-12-30 20:26:11 +01:00
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* $Id: client.c,v 1.13 2001/12/30 19:26:11 alex Exp $
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2001-12-14 09:13:43 +01:00
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*
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* client.c: Management aller Clients
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*
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* Der Begriff "Client" ist in diesem Fall evtl. etwas verwirrend: Clients sind
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* alle Verbindungen, die im gesamten(!) IRC-Netzwerk bekannt sind. Das sind IRC-
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* Clients (User), andere Server und IRC-Services.
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* Ueber welchen IRC-Server die Verbindung nun tatsaechlich in das Netzwerk her-
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* gestellt wurde, muss der jeweiligen Struktur entnommen werden. Ist es dieser
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* Server gewesen, so existiert eine entsprechende CONNECTION-Struktur.
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*
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* $Log: client.c,v $
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2001-12-30 20:26:11 +01:00
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* Revision 1.13 2001/12/30 19:26:11 alex
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* - Unterstuetzung fuer die Konfigurationsdatei eingebaut.
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*
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2001-12-29 21:18:18 +01:00
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* Revision 1.12 2001/12/29 20:18:18 alex
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* - neue Funktion Client_SetHostname().
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*
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2001-12-29 04:10:47 +01:00
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* Revision 1.11 2001/12/29 03:10:47 alex
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* - Client-Modes implementiert; Loglevel mal wieder angepasst.
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*
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2001-12-27 20:13:47 +01:00
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* Revision 1.10 2001/12/27 19:13:47 alex
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* - neue Funktion Client_Search(), besseres Logging.
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*
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2001-12-27 18:15:29 +01:00
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* Revision 1.9 2001/12/27 17:15:29 alex
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* - der eigene Hostname wird nun komplet (als FQDN) ermittelt.
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*
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2001-12-27 17:54:51 +01:00
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* Revision 1.8 2001/12/27 16:54:51 alex
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* - neue Funktion Client_GetID(), liefert die "Client ID".
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*
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2001-12-26 15:45:37 +01:00
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* Revision 1.7 2001/12/26 14:45:37 alex
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* - "Code Cleanups".
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*
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2001-12-26 04:19:16 +01:00
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* Revision 1.6 2001/12/26 03:19:16 alex
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* - neue Funktion Client_Name().
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*
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2001-12-25 23:04:26 +01:00
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* Revision 1.5 2001/12/25 22:04:26 alex
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* - Aenderungen an den Debug- und Logging-Funktionen.
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*
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2001-12-25 20:21:26 +01:00
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* Revision 1.4 2001/12/25 19:21:26 alex
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* - Client-Typ ("Status") besser unterteilt, My_Clients ist zudem nun global.
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*
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2001-12-24 02:31:14 +01:00
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* Revision 1.3 2001/12/24 01:31:14 alex
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* - einige assert()'s eingestraeut.
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*
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2001-12-23 23:04:37 +01:00
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* Revision 1.2 2001/12/23 22:04:37 alex
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* - einige neue Funktionen,
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* - CLIENT-Struktur erweitert.
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*
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2001-12-14 09:13:43 +01:00
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* Revision 1.1 2001/12/14 08:13:43 alex
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* - neues Modul begonnen :-)
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*/
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#include <portab.h>
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#include "global.h"
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#include <imp.h>
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#include <assert.h>
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2001-12-23 23:04:37 +01:00
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#include <unistd.h>
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2001-12-27 17:54:51 +01:00
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#include <stdio.h>
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2001-12-23 23:04:37 +01:00
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#include <string.h>
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2001-12-27 18:15:29 +01:00
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#include <netdb.h>
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2001-12-14 09:13:43 +01:00
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2001-12-26 15:45:37 +01:00
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#include <exp.h>
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#include "client.h"
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#include <imp.h>
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2001-12-14 09:13:43 +01:00
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#include "channel.h"
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2001-12-30 20:26:11 +01:00
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#include "conf.h"
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2001-12-14 09:13:43 +01:00
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#include "conn.h"
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2001-12-26 15:45:37 +01:00
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#include "irc.h"
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2001-12-14 09:13:43 +01:00
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#include "log.h"
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2001-12-26 15:45:37 +01:00
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#include "messages.h"
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2001-12-14 09:13:43 +01:00
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#include <exp.h>
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2001-12-26 15:45:37 +01:00
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2001-12-27 17:54:51 +01:00
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LOCAL CLIENT *My_Clients;
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LOCAL CHAR GetID_Buffer[CLIENT_ID_LEN];
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2001-12-14 09:13:43 +01:00
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LOCAL CLIENT *New_Client_Struct( VOID );
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GLOBAL VOID Client_Init( VOID )
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{
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2001-12-27 18:15:29 +01:00
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struct hostent *h;
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2001-12-14 09:13:43 +01:00
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This_Server = New_Client_Struct( );
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if( ! This_Server )
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{
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Log( LOG_EMERG, "Can't allocate client structure for server! Going down." );
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2001-12-30 20:26:11 +01:00
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Log( LOG_ALERT, PACKAGE" exiting due to fatal errors!" );
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2001-12-14 09:13:43 +01:00
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exit( 1 );
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}
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/* Client-Struktur dieses Servers */
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This_Server->next = NULL;
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This_Server->type = CLIENT_SERVER;
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This_Server->conn_id = NONE;
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This_Server->introducer = This_Server;
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2001-12-27 18:15:29 +01:00
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2001-12-23 23:04:37 +01:00
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gethostname( This_Server->host, CLIENT_HOST_LEN );
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2001-12-27 18:15:29 +01:00
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h = gethostbyname( This_Server->host );
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if( h ) strcpy( This_Server->host, h->h_name );
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2001-12-30 20:26:11 +01:00
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strcpy( This_Server->nick, Conf_ServerName );
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2001-12-23 23:04:37 +01:00
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2001-12-14 09:13:43 +01:00
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My_Clients = This_Server;
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} /* Client_Init */
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GLOBAL VOID Client_Exit( VOID )
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{
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2001-12-23 23:04:37 +01:00
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CLIENT *c, *next;
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INT cnt;
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Client_Destroy( This_Server );
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cnt = 0;
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c = My_Clients;
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while( c )
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{
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cnt++;
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next = c->next;
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free( c );
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c = next;
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}
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2001-12-25 23:04:26 +01:00
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if( cnt ) Log( LOG_INFO, "Freed %d client structure%s.", cnt, cnt == 1 ? "" : "s" );
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2001-12-14 09:13:43 +01:00
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} /* Client Exit */
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2001-12-26 15:45:37 +01:00
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GLOBAL CLIENT *Client_NewLocal( CONN_ID Idx, CHAR *Hostname )
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2001-12-23 23:04:37 +01:00
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{
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/* Neuen lokalen Client erzeugen. */
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CLIENT *client;
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2001-12-24 02:31:14 +01:00
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assert( Idx >= 0 );
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assert( Hostname != NULL );
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2001-12-23 23:04:37 +01:00
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client = New_Client_Struct( );
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if( ! client ) return NULL;
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2001-12-29 21:18:18 +01:00
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/* Initialisieren */
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2001-12-23 23:04:37 +01:00
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client->conn_id = Idx;
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client->introducer = This_Server;
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2001-12-29 21:18:18 +01:00
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Client_SetHostname( client, Hostname );
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2001-12-23 23:04:37 +01:00
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/* Verketten */
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client->next = My_Clients;
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My_Clients = client;
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return client;
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2001-12-26 15:45:37 +01:00
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} /* Client_NewLocal */
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2001-12-23 23:04:37 +01:00
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GLOBAL VOID Client_Destroy( CLIENT *Client )
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{
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/* Client entfernen. */
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CLIENT *last, *c;
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2001-12-24 02:31:14 +01:00
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assert( Client != NULL );
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2001-12-23 23:04:37 +01:00
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last = NULL;
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c = My_Clients;
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while( c )
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{
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if( c == Client )
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{
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if( last ) last->next = c->next;
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else My_Clients = c->next;
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2001-12-27 20:13:47 +01:00
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2001-12-29 04:10:47 +01:00
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if( c->type == CLIENT_USER ) Log( LOG_NOTICE, "User \"%s!%s@%s\" (%s) exited (connection %d).", c->nick, c->user, c->host, c->name, c->conn_id );
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2001-12-27 20:13:47 +01:00
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2001-12-23 23:04:37 +01:00
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free( c );
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break;
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}
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last = c;
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c = c->next;
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}
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} /* Client_Destroy */
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2001-12-29 21:18:18 +01:00
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GLOBAL VOID Client_SetHostname( CLIENT *Client, CHAR *Hostname )
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{
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/* Hostname eines Clients setzen */
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assert( Client != NULL );
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strncpy( Client->host, Hostname, CLIENT_HOST_LEN );
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Client->host[CLIENT_HOST_LEN] = '\0';
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} /* Client_SetHostname */
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2001-12-23 23:04:37 +01:00
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GLOBAL CLIENT *Client_GetFromConn( CONN_ID Idx )
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{
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/* Client-Struktur, die zur lokalen Verbindung Idx gehoert
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* liefern. Wird keine gefunden, so wird NULL geliefert. */
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CLIENT *c;
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2001-12-24 02:31:14 +01:00
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assert( Idx >= 0 );
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2001-12-23 23:04:37 +01:00
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c = My_Clients;
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while( c )
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{
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if( c->conn_id == Idx ) return c;
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c = c->next;
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}
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return NULL;
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} /* Client_GetFromConn */
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2001-12-26 04:19:16 +01:00
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GLOBAL CHAR *Client_Name( CLIENT *Client )
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{
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assert( Client != NULL );
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if( Client->nick[0] ) return Client->nick;
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else return "*";
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} /* Client_Name */
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2001-12-26 15:45:37 +01:00
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GLOBAL BOOLEAN Client_CheckNick( CLIENT *Client, CHAR *Nick )
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{
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/* Nick ueberpruefen */
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CLIENT *c;
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assert( Client != NULL );
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assert( Nick != NULL );
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/* Nick zu lang? */
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if( strlen( Nick ) > CLIENT_NICK_LEN ) return IRC_WriteStrClient( Client, This_Server, ERR_ERRONEUSNICKNAME_MSG, Client_Name( Client ), Nick );
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/* Nick bereits vergeben? */
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c = My_Clients;
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while( c )
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{
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if( strcasecmp( c->nick, Nick ) == 0 )
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{
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/* den Nick gibt es bereits */
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IRC_WriteStrClient( Client, This_Server, ERR_NICKNAMEINUSE_MSG, Client_Name( Client ), Nick );
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return FALSE;
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}
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c = c->next;
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}
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return TRUE;
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} /* Client_CheckNick */
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2001-12-27 17:54:51 +01:00
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GLOBAL CHAR *Client_GetID( CLIENT *Client )
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{
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/* Client-"ID" liefern, wie sie z.B. fuer
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* Prefixe benoetigt wird. */
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assert( Client != NULL );
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2001-12-30 20:26:11 +01:00
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if( Client->type == CLIENT_SERVER ) return Client->nick;
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2001-12-27 17:54:51 +01:00
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sprintf( GetID_Buffer, "%s!%s@%s", Client->nick, Client->user, Client->host );
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return GetID_Buffer;
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} /* Client_GetID */
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2001-12-27 20:13:47 +01:00
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GLOBAL CLIENT *Client_Search( CHAR *ID )
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{
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/* Client suchen, auf den ID passt */
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CLIENT *c;
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assert( ID != NULL );
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c = My_Clients;
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while( c )
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{
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if( strcasecmp( c->nick, ID ) == 0 ) return c;
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c = c->next;
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}
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return NULL;
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} /* Client_Search */
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2001-12-14 09:13:43 +01:00
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LOCAL CLIENT *New_Client_Struct( VOID )
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{
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2001-12-23 23:04:37 +01:00
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/* Neue CLIENT-Struktur pre-initialisieren */
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2001-12-14 09:13:43 +01:00
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CLIENT *c;
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INT i;
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c = malloc( sizeof( CLIENT ));
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if( ! c )
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{
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Log( LOG_EMERG, "Can't allocate memory!" );
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return NULL;
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}
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c->next = NULL;
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c->type = CLIENT_UNKNOWN;
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c->conn_id = NONE;
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c->introducer = NULL;
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strcpy( c->nick, "" );
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strcpy( c->pass, "" );
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2001-12-23 23:04:37 +01:00
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strcpy( c->host, "" );
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strcpy( c->user, "" );
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strcpy( c->name, "" );
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2001-12-14 09:13:43 +01:00
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for( i = 0; i < MAX_CHANNELS; c->channels[i++] = NULL );
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2001-12-29 04:10:47 +01:00
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strcpy( c->modes, "" );
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2001-12-23 23:04:37 +01:00
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2001-12-14 09:13:43 +01:00
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return c;
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} /* New_Client */
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/* -eof- */
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