/*
* ircd-ratbox: A slightly useful ircd.
* m_connect.c: Connects to a remote IRC server.
*
* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
* Copyright (C) 1996-2002 Hybrid Development Team
* Copyright (C) 2002-2005 ircd-ratbox development team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
* $Id: m_connect.c 3161 2007-01-25 07:23:01Z nenolod $
*/
#include "stdinc.h"
#include "client.h"
#include "ircd.h"
#include "irc_string.h"
#include "numeric.h"
#include "s_conf.h"
#include "s_newconf.h"
#include "s_log.h"
#include "s_serv.h"
#include "send.h"
#include "msg.h"
#include "parse.h"
#include "hash.h"
#include "modules.h"
static int mo_connect(struct Client *, struct Client *, int, const char **);
static int ms_connect(struct Client *, struct Client *, int, const char **);
struct Message connect_msgtab = {
"CONNECT", 0, 0, 0, MFLG_SLOW,
{mg_unreg, mg_not_oper, {ms_connect, 4}, {ms_connect, 4}, mg_ignore, {mo_connect, 2}}
};
mapi_clist_av1 connect_clist[] = { &connect_msgtab, NULL };
DECLARE_MODULE_AV1(connect, NULL, NULL, connect_clist, NULL, NULL, "$Revision: 3161 $");
/*
* mo_connect - CONNECT command handler
*
* Added by Jto 11 Feb 1989
*
* m_connect
* parv[0] = sender prefix
* parv[1] = servername
* parv[2] = port number
* parv[3] = remote server
*/
static int
mo_connect(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
int port;
int tmpport;
struct server_conf *server_p;
struct Client *target_p;
/* always privileged with handlers */
if(MyConnect(source_p) && !IsOperRemote(source_p) && parc > 3)
{
sendto_one(source_p, form_str(ERR_NOPRIVS),
me.name, source_p->name, "remote");
return 0;
}
if(hunt_server(client_p, source_p, ":%s CONNECT %s %s :%s", 3, parc, parv) != HUNTED_ISME)
return 0;
if((target_p = find_server(source_p, parv[1])))
{
sendto_one_notice(source_p, ":Connect: Server %s already exists from %s.", parv[1],
target_p->from->name);
return 0;
}
/*
* try to find the name, then host, if both fail notify ops and bail
*/
if((server_p = find_server_conf(parv[1])) == NULL)
{
sendto_one_notice(source_p, ":Connect: Host %s not listed in ircd.conf", parv[1]);
return 0;
}
/*
* Get port number from user, if given. If not specified,
* use the default form configuration structure. If missing
* from there, then use the precompiled default.
*/
tmpport = port = server_p->port;
if(parc > 2 && !EmptyString(parv[2]))
{
if((port = atoi(parv[2])) <= 0)
{
sendto_one_notice(source_p, ":Connect: Illegal port number");
return 0;
}
}
else if(port <= 0 && (port = PORTNUM) <= 0)
{
sendto_one_notice(source_p, ":Connect: missing port number");
return 0;
}
/*
* Notify all operators about remote connect requests
*/
ilog(L_SERVER, "CONNECT From %s : %s %s", parv[0], parv[1], parc > 2 ? parv[2] : "");
server_p->port = port;
/*
* at this point we should be calling connect_server with a valid
* C:line and a valid port in the C:line
*/
if(serv_connect(server_p, source_p))
{
#ifndef HIDE_SERVERS_IPS
sendto_one_notice(source_p, ":*** Connecting to %s[%s].%d",
server_p->host, server_p->name, server_p->port);
#else
sendto_one_notice(source_p, ":*** Connecting to %s.%d",
server_p->name, server_p->port);
#endif
}
else
{
sendto_one_notice(source_p, ":*** Couldn't connect to %s.%d",
server_p->name, server_p->port);
}
/*
* client is either connecting with all the data it needs or has been
* destroyed
*/
server_p->port = tmpport;
return 0;
}
/*
* ms_connect - CONNECT command handler
*
* Added by Jto 11 Feb 1989
*
* m_connect
* parv[0] = sender prefix
* parv[1] = servername
* parv[2] = port number
* parv[3] = remote server
*/
static int
ms_connect(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
int port;
int tmpport;
struct server_conf *server_p;
struct Client *target_p;
if(hunt_server(client_p, source_p, ":%s CONNECT %s %s :%s", 3, parc, parv) != HUNTED_ISME)
return 0;
if((target_p = find_server(NULL, parv[1])))
{
sendto_one_notice(source_p, ":Connect: Server %s already exists from %s.",
parv[1], target_p->from->name);
return 0;
}
/*
* try to find the name, then host, if both fail notify ops and bail
*/
if((server_p = find_server_conf(parv[1])) == NULL)
{
sendto_one_notice(source_p, ":Connect: Host %s not listed in ircd.conf",
parv[1]);
return 0;
}
/*
* Get port number from user, if given. If not specified,
* use the default form configuration structure. If missing
* from there, then use the precompiled default.
*/
tmpport = server_p->port;
port = atoi(parv[2]);
/* if someone sends port 0, and we have a config port.. use it */
if(port == 0 && server_p->port)
port = server_p->port;
else if(port <= 0)
{
sendto_one_notice(source_p, ":Connect: Illegal port number");
return 0;
}
/*
* Notify all operators about remote connect requests
*/
sendto_wallops_flags(UMODE_WALLOP, &me,
"Remote CONNECT %s %d from %s",
parv[1], port, source_p->name);
sendto_server(NULL, NULL, CAP_TS6, NOCAPS,
":%s WALLOPS :Remote CONNECT %s %d from %s",
me.id, parv[1], port, source_p->name);
sendto_server(NULL, NULL, NOCAPS, CAP_TS6,
":%s WALLOPS :Remote CONNECT %s %d from %s",
me.name, parv[1], port, source_p->name);
ilog(L_SERVER, "CONNECT From %s : %s %d", source_p->name, parv[1], port);
server_p->port = port;
/*
* at this point we should be calling connect_server with a valid
* C:line and a valid port in the C:line
*/
if(serv_connect(server_p, source_p))
sendto_one_notice(source_p, ":*** Connecting to %s.%d",
server_p->name, server_p->port);
else
sendto_one_notice(source_p, ":*** Couldn't connect to %s.%d",
server_p->name, server_p->port);
/*
* client is either connecting with all the data it needs or has been
* destroyed
*/
server_p->port = tmpport;
return 0;
}