3c7d6fcce7
Also fix up some return values and stuff to use bool (or void if nothing). I just did it whilst I was here. According to jilles, the return value used to signify whether or not the client had exited. This was error-prone and was fixed a long, long time ago, but the return value was left int for historical reasons. Since the return type is not used (and has no clear use case anyway), it's safe to just get rid of it.
250 lines
6.7 KiB
C
250 lines
6.7 KiB
C
/*
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* ircd-ratbox: A slightly useful ircd.
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* m_connect.c: Connects to a remote IRC server.
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*
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* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
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* Copyright (C) 1996-2002 Hybrid Development Team
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* Copyright (C) 2002-2005 ircd-ratbox development team
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*
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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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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*/
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#include "stdinc.h"
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#include "client.h"
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#include "ircd.h"
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#include "match.h"
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#include "numeric.h"
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#include "s_conf.h"
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#include "s_newconf.h"
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#include "logger.h"
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#include "s_serv.h"
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#include "send.h"
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#include "msg.h"
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#include "parse.h"
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#include "hash.h"
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#include "modules.h"
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#include "sslproc.h"
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static const char connect_desc[] =
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"Provides the CONNECT command to introduce servers to the network";
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static void mo_connect(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
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static void ms_connect(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
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struct Message connect_msgtab = {
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"CONNECT", 0, 0, 0, 0,
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{mg_unreg, mg_not_oper, {ms_connect, 4}, {ms_connect, 4}, mg_ignore, {mo_connect, 2}}
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};
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mapi_clist_av1 connect_clist[] = { &connect_msgtab, NULL };
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DECLARE_MODULE_AV2(connect, NULL, NULL, connect_clist, NULL, NULL, NULL, NULL, connect_desc);
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/*
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* mo_connect - CONNECT command handler
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*
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* Added by Jto 11 Feb 1989
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*
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* m_connect
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* parv[1] = servername
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* parv[2] = port number
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* parv[3] = remote server
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*/
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static void
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mo_connect(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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int port;
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int tmpport;
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struct server_conf *server_p;
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struct Client *target_p;
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/* always privileged with handlers */
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if(MyConnect(source_p) && !IsOperRemote(source_p) && parc > 3)
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{
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sendto_one(source_p, form_str(ERR_NOPRIVS),
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me.name, source_p->name, "remote");
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return;
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}
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if(hunt_server(client_p, source_p, ":%s CONNECT %s %s :%s", 3, parc, parv) != HUNTED_ISME)
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return;
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if((target_p = find_server(source_p, parv[1])))
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{
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sendto_one_notice(source_p, ":Connect: Server %s already exists from %s.", parv[1],
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target_p->from->name);
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return;
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}
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/*
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* try to find the name, then host, if both fail notify ops and bail
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*/
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if((server_p = find_server_conf(parv[1])) == NULL)
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{
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sendto_one_notice(source_p, ":Connect: Host %s not listed in ircd.conf", parv[1]);
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return;
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}
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if(ServerConfSSL(server_p) && (!ssl_ok || !get_ssld_count()))
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{
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sendto_one_notice(source_p,
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":Connect: Server %s is set to use SSL/TLS but SSL/TLS is not configured.",
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parv[1]);
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return;
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}
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/*
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* Get port number from user, if given. If not specified,
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* use the default form configuration structure. If missing
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* from there, then use the precompiled default.
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*/
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port = 0;
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if(parc > 2 && !EmptyString(parv[2]))
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port = atoi(parv[2]);
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if(port == 0 && server_p->port)
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port = server_p->port;
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else if(port <= 0)
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{
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sendto_one_notice(source_p, ":Connect: illegal port number");
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return;
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}
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/*
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* Notify all operators about remote connect requests
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*/
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ilog(L_SERVER, "CONNECT From %s : %s %s", source_p->name, parv[1], parc > 2 ? parv[2] : "");
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tmpport = server_p->port;
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server_p->port = port;
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/*
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* at this point we should be calling connect_server with a valid
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* C:line and a valid port in the C:line
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*/
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if(serv_connect(server_p, source_p))
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{
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sendto_one_notice(source_p, ":*** Connecting to %s.%d",
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server_p->name, server_p->port);
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}
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else
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{
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sendto_one_notice(source_p, ":*** Couldn't connect to %s.%d",
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server_p->name, server_p->port);
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}
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/*
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* client is either connecting with all the data it needs or has been
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* destroyed, so reset it back to the configured settings
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*/
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server_p->port = tmpport;
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}
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/*
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* ms_connect - CONNECT command handler
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*
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* Added by Jto 11 Feb 1989
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*
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* m_connect
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* parv[1] = servername
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* parv[2] = port number
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* parv[3] = remote server
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*/
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static void
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ms_connect(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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int port;
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int tmpport;
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struct server_conf *server_p;
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struct Client *target_p;
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if(hunt_server(client_p, source_p, ":%s CONNECT %s %s :%s", 3, parc, parv) != HUNTED_ISME)
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return;
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if((target_p = find_server(NULL, parv[1])))
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{
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sendto_one_notice(source_p, ":Connect: Server %s already exists from %s.",
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parv[1], target_p->from->name);
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return;
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}
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/*
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* try to find the name, then host, if both fail notify ops and bail
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*/
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if((server_p = find_server_conf(parv[1])) == NULL)
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{
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sendto_one_notice(source_p, ":Connect: Host %s not listed in ircd.conf",
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parv[1]);
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return;
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}
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if(ServerConfSSL(server_p) && (!ssl_ok || !get_ssld_count()))
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{
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sendto_one_notice(source_p,
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":Connect: Server %s is set to use SSL/TLS but SSL/TLS is not configured.",
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parv[1]);
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return;
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}
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/*
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* Get port number from user, if given. If not specified,
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* use the default form configuration structure. If missing
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* from there, then use the precompiled default.
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*/
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tmpport = server_p->port;
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port = atoi(parv[2]);
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/* if someone sends port 0, and we have a config port.. use it */
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if(port == 0 && server_p->port)
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port = server_p->port;
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else if(port <= 0)
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{
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sendto_one_notice(source_p, ":Connect: Illegal port number");
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return;
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}
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/*
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* Notify all operators about remote connect requests
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*/
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sendto_wallops_flags(UMODE_WALLOP, &me,
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"Remote CONNECT %s %d from %s",
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parv[1], port, source_p->name);
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sendto_server(NULL, NULL, CAP_TS6, NOCAPS,
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":%s WALLOPS :Remote CONNECT %s %d from %s",
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me.id, parv[1], port, source_p->name);
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ilog(L_SERVER, "CONNECT From %s : %s %d", source_p->name, parv[1], port);
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server_p->port = port;
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/*
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* at this point we should be calling connect_server with a valid
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* C:line and a valid port in the C:line
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*/
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if(serv_connect(server_p, source_p))
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sendto_one_notice(source_p, ":*** Connecting to %s.%d",
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server_p->name, server_p->port);
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else
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sendto_one_notice(source_p, ":*** Couldn't connect to %s.%d",
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server_p->name, server_p->port);
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/*
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* client is either connecting with all the data it needs or has been
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* destroyed
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*/
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server_p->port = tmpport;
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}
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