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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2004-02-28 03:18:16 +01:00
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* Copyright (c)2001-2004 Alexander Barton <alex@barton.de>
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2001-12-14 09:13:43 +01:00
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*
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2002-12-12 13:24:18 +01:00
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* Please read the file COPYING, README and AUTHORS for more information.
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2001-12-14 09:13:43 +01:00
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*
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2002-12-12 13:24:18 +01:00
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* IRC commands
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2002-02-28 00:26:36 +01:00
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*/
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2001-12-26 04:21:46 +01:00
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2002-03-12 15:37:51 +01:00
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#include "portab.h"
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2002-02-11 16:15:53 +01:00
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2006-07-23 16:55:40 +02:00
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static char UNUSED id[] = "$Id: irc.c,v 1.131 2006/07/23 14:55:40 alex Exp $";
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2002-12-12 13:24:18 +01:00
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2002-03-12 15:37:51 +01:00
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#include "imp.h"
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2002-02-28 00:26:36 +01:00
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#include <assert.h>
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2002-12-12 12:40:41 +01:00
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#include <stdio.h>
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2002-02-28 00:26:36 +01:00
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#include <string.h>
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2001-12-26 04:21:46 +01:00
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2003-01-13 19:56:30 +01:00
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#include "ngircd.h"
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#include "resolve.h"
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2002-12-30 18:15:42 +01:00
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#include "conn-func.h"
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2006-07-23 16:55:40 +02:00
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#include "conf.h"
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2002-02-28 00:26:36 +01:00
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#include "client.h"
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2002-05-27 15:09:26 +02:00
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#include "channel.h"
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2002-11-30 18:39:56 +01:00
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#include "defines.h"
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2002-02-28 00:26:36 +01:00
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#include "irc-write.h"
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#include "log.h"
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#include "messages.h"
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2002-05-27 15:09:26 +02:00
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#include "parse.h"
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2002-02-11 02:03:20 +01:00
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2002-03-12 15:37:51 +01:00
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#include "exp.h"
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2002-02-28 00:26:36 +01:00
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#include "irc.h"
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2001-12-26 04:21:46 +01:00
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2005-07-31 22:13:07 +02:00
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static char *Option_String PARAMS(( CONN_ID Idx ));
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2003-03-19 22:16:53 +01:00
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2005-03-19 19:43:48 +01:00
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GLOBAL bool
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2002-05-27 15:09:26 +02:00
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IRC_ERROR( CLIENT *Client, REQUEST *Req )
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2002-01-02 03:44:36 +01:00
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{
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assert( Client != NULL );
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assert( Req != NULL );
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2002-01-04 02:21:47 +01:00
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if( Req->argc < 1 ) Log( LOG_NOTICE, "Got ERROR from \"%s\"!", Client_Mask( Client ));
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else Log( LOG_NOTICE, "Got ERROR from \"%s\": %s!", Client_Mask( Client ), Req->argv[0] );
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2002-01-02 03:44:36 +01:00
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return CONNECTED;
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} /* IRC_ERROR */
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2001-12-31 03:18:51 +01:00
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2005-04-18 17:44:39 +02:00
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/**
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* Kill client on request.
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* This function implements the IRC command "KILL" wich is used to selectively
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* disconnect clients. It can be used by IRC operators and servers, for example
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* to "solve" nick collisions after netsplits.
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* Please note that this function is also called internally, without a real
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* KILL command beeing received over the network! Client is Client_ThisServer()
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* in this case. */
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2005-03-19 19:43:48 +01:00
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GLOBAL bool
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2002-05-27 15:09:26 +02:00
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IRC_KILL( CLIENT *Client, REQUEST *Req )
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2002-02-23 22:39:48 +01:00
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{
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CLIENT *prefix, *c;
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2005-04-18 17:44:39 +02:00
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char reason[COMMAND_LEN], *msg;
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2002-12-31 17:09:55 +01:00
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CONN_ID my_conn, conn;
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2002-11-30 18:39:56 +01:00
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2002-02-23 22:39:48 +01:00
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assert( Client != NULL );
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assert( Req != NULL );
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2005-04-18 17:44:39 +02:00
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if(( Client_Type( Client ) != CLIENT_SERVER ) &&
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( ! Client_OperByMe( Client )))
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{
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/* The originator of the KILL is neither an IRC operator of
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* this server nor a server. */
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return IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG,
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Client_ID( Client ));
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}
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2002-12-06 18:02:39 +01:00
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2005-04-18 17:44:39 +02:00
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if( Req->argc != 2 )
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{
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/* This command requires exactly 2 parameters! */
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return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG,
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Client_ID( Client ), Req->command );
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}
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2002-02-23 22:39:48 +01:00
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2002-12-06 18:02:39 +01:00
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if( Req->prefix ) prefix = Client_Search( Req->prefix );
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else prefix = Client;
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2002-02-23 22:39:48 +01:00
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if( ! prefix )
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{
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2005-04-18 17:44:39 +02:00
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Log( LOG_WARNING, "Got KILL with invalid prefix: \"%s\"!",
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Req->prefix );
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2002-02-23 22:39:48 +01:00
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prefix = Client_ThisServer( );
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}
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2002-11-30 18:39:56 +01:00
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2005-04-18 17:44:39 +02:00
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if( Client != Client_ThisServer( ))
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{
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/* This is a "real" KILL received from the network. */
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Log( LOG_NOTICE|LOG_snotice, "Got KILL command from \"%s\" for \"%s\": %s",
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Client_Mask( prefix ), Req->argv[0], Req->argv[1] );
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}
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2002-12-06 18:02:39 +01:00
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2002-12-26 19:41:00 +01:00
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/* Build reason string */
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2005-04-18 17:44:39 +02:00
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if( Client_Type( Client ) == CLIENT_USER )
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{
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/* Prefix the "reason" if the originator is a regular user,
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* so users can't spoof KILLs of servers. */
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snprintf( reason, sizeof( reason ), "KILLed by %s: %s",
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Client_ID( Client ), Req->argv[1] );
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}
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else
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strlcpy( reason, Req->argv[1], sizeof( reason ));
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2002-11-30 18:39:56 +01:00
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2002-12-26 19:41:00 +01:00
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/* Inform other servers */
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2005-04-18 17:44:39 +02:00
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IRC_WriteStrServersPrefix( Client, prefix, "KILL %s :%s",
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Req->argv[0], reason );
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2002-02-23 22:39:48 +01:00
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2002-12-31 17:09:55 +01:00
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/* Save ID of this connection */
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my_conn = Client_Conn( Client );
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2005-04-18 17:44:39 +02:00
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2002-12-26 19:41:00 +01:00
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/* Do we host such a client? */
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2002-03-25 18:04:02 +01:00
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c = Client_Search( Req->argv[0] );
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2002-07-25 13:37:01 +02:00
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if( c )
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{
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2005-04-18 17:44:39 +02:00
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if(( Client_Type( c ) != CLIENT_USER ) &&
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( Client_Type( c ) != CLIENT_GOTNICK ))
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2003-04-29 14:19:20 +02:00
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{
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2005-04-18 17:44:39 +02:00
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/* Target of this KILL is not a regular user, this is
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* invalid! So we ignore this case if we received a
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* regular KILL from the network and try to kill the
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* client/connection anyway (but log an error!) if the
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* origin is the local server. */
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if( Client != Client_ThisServer( ))
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2003-04-29 14:19:20 +02:00
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{
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2005-04-18 17:44:39 +02:00
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/* Invalid KILL received from remote */
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if( Client_Type( c ) == CLIENT_SERVER )
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msg = ERR_CANTKILLSERVER_MSG;
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else
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msg = ERR_NOPRIVILEGES_MSG;
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return IRC_WriteStrClient( Client, msg,
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Client_ID( Client ));
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2003-04-29 14:19:20 +02:00
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}
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2005-04-18 17:44:39 +02:00
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Log( LOG_ERR, "Got KILL for invalid client type: %d, \"%s\"!",
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Client_Type( c ), Req->argv[0] );
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2003-04-29 14:19:20 +02:00
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}
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2005-04-18 17:44:39 +02:00
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/* Kill client NOW! */
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2005-08-03 01:19:21 +02:00
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conn = Client_Conn( c );
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2005-04-18 17:44:39 +02:00
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Client_Destroy( c, NULL, reason, false );
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if( conn > NONE )
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Conn_Close( conn, NULL, reason, true );
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2002-07-25 13:37:01 +02:00
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}
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2005-04-18 17:44:39 +02:00
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else
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Log( LOG_NOTICE, "Client with nick \"%s\" is unknown here.", Req->argv[0] );
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2002-07-25 13:37:01 +02:00
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2002-12-26 19:41:00 +01:00
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/* Are we still connected or were we killed, too? */
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2006-04-23 12:37:27 +02:00
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if(( my_conn > NONE ) && ( Conn_GetClient( my_conn )))
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2005-04-18 17:44:39 +02:00
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return CONNECTED;
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else
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return DISCONNECTED;
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2002-02-23 22:39:48 +01:00
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} /* IRC_KILL */
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2005-03-19 19:43:48 +01:00
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GLOBAL bool
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2002-11-30 18:39:56 +01:00
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IRC_NOTICE( CLIENT *Client, REQUEST *Req )
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2002-09-16 11:14:45 +02:00
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{
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2002-11-30 18:39:56 +01:00
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CLIENT *to, *from;
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2002-09-16 11:14:45 +02:00
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assert( Client != NULL );
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assert( Req != NULL );
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2002-11-30 18:39:56 +01:00
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if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return CONNECTED;
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2002-11-24 19:45:53 +01:00
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/* Falsche Anzahl Parameter? */
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2002-11-30 18:39:56 +01:00
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if( Req->argc != 2 ) return CONNECTED;
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2002-11-24 19:45:53 +01:00
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if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
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else from = Client;
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2002-11-30 18:39:56 +01:00
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if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
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2001-12-26 23:48:53 +01:00
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2002-11-30 18:39:56 +01:00
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to = Client_Search( Req->argv[0] );
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if(( to ) && ( Client_Type( to ) == CLIENT_USER ))
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2001-12-26 23:48:53 +01:00
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{
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2002-11-30 18:39:56 +01:00
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/* Okay, Ziel ist ein User */
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return IRC_WriteStrClientPrefix( to, from, "NOTICE %s :%s", Client_ID( to ), Req->argv[1] );
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2001-12-26 23:48:53 +01:00
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}
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2002-11-30 18:39:56 +01:00
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else return CONNECTED;
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} /* IRC_NOTICE */
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2002-02-23 22:39:48 +01:00
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2002-01-04 02:21:47 +01:00
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2005-03-19 19:43:48 +01:00
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GLOBAL bool
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2002-11-30 18:39:56 +01:00
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IRC_PRIVMSG( CLIENT *Client, REQUEST *Req )
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2002-01-28 14:05:48 +01:00
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{
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2002-11-30 18:39:56 +01:00
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CLIENT *cl, *from;
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CHANNEL *chan;
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2002-01-28 14:05:48 +01:00
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assert( Client != NULL );
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2002-11-30 18:39:56 +01:00
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assert( Req != NULL );
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2002-03-03 20:44:30 +01:00
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2002-11-30 18:39:56 +01:00
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/* Falsche Anzahl Parameter? */
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if( Req->argc == 0 ) return IRC_WriteStrClient( Client, ERR_NORECIPIENT_MSG, Client_ID( Client ), Req->command );
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if( Req->argc == 1 ) return IRC_WriteStrClient( Client, ERR_NOTEXTTOSEND_MSG, Client_ID( Client ));
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if( Req->argc > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
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2002-03-03 20:44:30 +01:00
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2002-11-30 18:39:56 +01:00
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if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
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else from = Client;
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if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
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2002-03-03 20:44:30 +01:00
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2002-11-30 18:39:56 +01:00
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cl = Client_Search( Req->argv[0] );
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if( cl )
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2002-03-03 20:44:30 +01:00
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{
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2002-11-30 18:39:56 +01:00
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/* Okay, Ziel ist ein Client. Aber ist es auch ein User? */
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if( Client_Type( cl ) != CLIENT_USER ) return IRC_WriteStrClient( from, ERR_NOSUCHNICK_MSG, Client_ID( from ), Req->argv[0] );
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2002-03-03 20:44:30 +01:00
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2002-11-30 18:39:56 +01:00
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/* Okay, Ziel ist ein User */
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if(( Client_Type( Client ) != CLIENT_SERVER ) && ( strchr( Client_Modes( cl ), 'a' )))
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2002-03-03 20:44:30 +01:00
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{
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2002-11-30 18:39:56 +01:00
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/* Ziel-User ist AWAY: Meldung verschicken */
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if( ! IRC_WriteStrClient( from, RPL_AWAY_MSG, Client_ID( from ), Client_ID( cl ), Client_Away( cl ))) return DISCONNECTED;
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2002-03-03 20:44:30 +01:00
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}
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2002-11-30 18:39:56 +01:00
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/* Text senden */
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if( Client_Conn( from ) > NONE ) Conn_UpdateIdle( Client_Conn( from ));
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return IRC_WriteStrClientPrefix( cl, from, "PRIVMSG %s :%s", Client_ID( cl ), Req->argv[1] );
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2002-02-14 00:05:29 +01:00
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}
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2002-11-30 18:39:56 +01:00
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chan = Channel_Search( Req->argv[0] );
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if( chan ) return Channel_Write( chan, from, Client, Req->argv[1] );
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2002-02-14 00:05:29 +01:00
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2002-11-30 18:39:56 +01:00
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return IRC_WriteStrClient( from, ERR_NOSUCHNICK_MSG, Client_ID( from ), Req->argv[0] );
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} /* IRC_PRIVMSG */
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2002-02-25 18:46:27 +01:00
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2005-03-19 19:43:48 +01:00
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GLOBAL bool
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2003-01-13 19:56:30 +01:00
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IRC_TRACE( CLIENT *Client, REQUEST *Req )
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{
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2003-03-19 22:16:53 +01:00
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CLIENT *from, *target, *c;
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2003-01-13 19:56:30 +01:00
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CONN_ID idx, idx2;
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2005-03-19 19:43:48 +01:00
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char user[CLIENT_USER_LEN];
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2003-01-13 19:56:30 +01:00
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assert( Client != NULL );
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assert( Req != NULL );
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/* Bad number of arguments? */
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if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NORECIPIENT_MSG, Client_ID( Client ), Req->command );
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/* Search sender */
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if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
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else from = Client;
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if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
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/* Search target */
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if( Req->argc == 1 ) target = Client_Search( Req->argv[0] );
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else target = Client_ThisServer( );
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/* Forward command to other server? */
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if( target != Client_ThisServer( ))
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{
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if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[0] );
|
|
|
|
|
|
|
|
/* Send RPL_TRACELINK back to initiator */
|
|
|
|
idx = Client_Conn( Client ); assert( idx > NONE );
|
|
|
|
idx2 = Client_Conn( Client_NextHop( target )); assert( idx2 > NONE );
|
2003-03-31 17:54:21 +02:00
|
|
|
if( ! IRC_WriteStrClient( from, RPL_TRACELINK_MSG, Client_ID( from ), PACKAGE_NAME, PACKAGE_VERSION, Client_ID( target ), Client_ID( Client_NextHop( target )), Option_String( idx2 ), time( NULL ) - Conn_StartTime( idx2 ), Conn_SendQ( idx ), Conn_SendQ( idx2 ))) return DISCONNECTED;
|
2003-01-13 19:56:30 +01:00
|
|
|
|
|
|
|
/* Forward command */
|
|
|
|
IRC_WriteStrClientPrefix( target, from, "TRACE %s", Req->argv[0] );
|
|
|
|
return CONNECTED;
|
|
|
|
}
|
|
|
|
|
2003-03-19 22:16:53 +01:00
|
|
|
/* Infos about all connected servers */
|
|
|
|
c = Client_First( );
|
|
|
|
while( c )
|
|
|
|
{
|
|
|
|
if( Client_Conn( c ) > NONE )
|
|
|
|
{
|
|
|
|
/* Local client */
|
|
|
|
if( Client_Type( c ) == CLIENT_SERVER )
|
|
|
|
{
|
|
|
|
/* Server link */
|
2004-02-28 03:18:16 +01:00
|
|
|
strlcpy( user, Client_User( c ), sizeof( user ));
|
|
|
|
if( user[0] == '~' ) strlcpy( user, "unknown", sizeof( user ));
|
|
|
|
if( ! IRC_WriteStrClient( from, RPL_TRACESERVER_MSG, Client_ID( from ), Client_ID( c ), user, Client_Hostname( c ), Client_Mask( Client_ThisServer( )), Option_String( Client_Conn( c )))) return DISCONNECTED;
|
2003-03-19 22:16:53 +01:00
|
|
|
}
|
|
|
|
if(( Client_Type( c ) == CLIENT_USER ) && ( strchr( Client_Modes( c ), 'o' )))
|
|
|
|
{
|
|
|
|
/* IRC Operator */
|
|
|
|
if( ! IRC_WriteStrClient( from, RPL_TRACEOPERATOR_MSG, Client_ID( from ), Client_ID( c ))) return DISCONNECTED;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
c = Client_Next( c );
|
|
|
|
}
|
|
|
|
|
2003-11-06 00:24:48 +01:00
|
|
|
IRC_SetPenalty( Client, 3 );
|
2003-03-31 17:54:21 +02:00
|
|
|
return IRC_WriteStrClient( from, RPL_TRACEEND_MSG, Client_ID( from ), Conf_ServerName, PACKAGE_NAME, PACKAGE_VERSION, NGIRCd_DebugLevel );
|
2003-01-13 19:56:30 +01:00
|
|
|
} /* IRC_TRACE */
|
|
|
|
|
|
|
|
|
2005-03-19 19:43:48 +01:00
|
|
|
GLOBAL bool
|
2003-01-15 14:49:20 +01:00
|
|
|
IRC_HELP( CLIENT *Client, REQUEST *Req )
|
|
|
|
{
|
|
|
|
COMMAND *cmd;
|
|
|
|
|
|
|
|
assert( Client != NULL );
|
|
|
|
assert( Req != NULL );
|
|
|
|
|
|
|
|
/* Bad number of arguments? */
|
|
|
|
if( Req->argc > 0 ) return IRC_WriteStrClient( Client, ERR_NORECIPIENT_MSG, Client_ID( Client ), Req->command );
|
|
|
|
|
|
|
|
cmd = Parse_GetCommandStruct( );
|
|
|
|
while( cmd->name )
|
|
|
|
{
|
|
|
|
if( ! IRC_WriteStrClient( Client, "NOTICE %s :%s", Client_ID( Client ), cmd->name )) return DISCONNECTED;
|
|
|
|
cmd++;
|
|
|
|
}
|
2003-11-06 00:24:48 +01:00
|
|
|
|
|
|
|
IRC_SetPenalty( Client, 2 );
|
2003-01-15 14:49:20 +01:00
|
|
|
return CONNECTED;
|
|
|
|
} /* IRC_HELP */
|
|
|
|
|
|
|
|
|
2005-07-31 22:13:07 +02:00
|
|
|
static char *
|
2003-03-19 22:16:53 +01:00
|
|
|
Option_String( CONN_ID Idx )
|
|
|
|
{
|
2005-03-19 19:43:48 +01:00
|
|
|
static char option_txt[8];
|
2006-05-10 23:24:01 +02:00
|
|
|
UINT16 options;
|
2003-03-19 22:16:53 +01:00
|
|
|
|
2006-05-10 23:24:01 +02:00
|
|
|
options = Conn_Options(Idx);
|
2003-03-19 22:16:53 +01:00
|
|
|
|
2006-05-10 23:24:01 +02:00
|
|
|
strcpy(option_txt, "F"); /* No idea what this means, but the
|
|
|
|
* original ircd sends it ... */
|
2003-12-26 16:55:07 +01:00
|
|
|
#ifdef ZLIB
|
2006-05-10 23:24:01 +02:00
|
|
|
if(options & CONN_ZIP) /* zlib compression supported. */
|
|
|
|
strcat(option_txt, "z");
|
2003-03-19 22:16:53 +01:00
|
|
|
#endif
|
|
|
|
|
|
|
|
return option_txt;
|
|
|
|
} /* Option_String */
|
|
|
|
|
|
|
|
|
2001-12-14 09:13:43 +01:00
|
|
|
/* -eof- */
|