hlswmaster/plugins/gamespy1.c

/***************************************************************************
 *   Copyright (C) 03/2005 by Olaf Rempel                                  *
 *   razzor@kopf-tisch.de                                                  *
 *                                                                         *
 *   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.             *
 ***************************************************************************/
#include <string.h>
#include "plugin.h"

struct scan_ports port_arr[] = {
	{ 22000, 22010, 16 }, /* Battlefield 1942 */
	{ 0, 0, 0 }
};

static char scanmsg[] = "\\info\\";
static char bf1942_reply[] = "\\gameId\\BF1942\\";
static char hostport_search[] = "\\hostport\\";

int scan(void) {
	pkt_send_portarr(NULL, port_arr, scanmsg, strlen(scanmsg));
	return 1;
}

int parse(struct net_pkt *pkt) {
	int gameid, port;
	void *p;
	
	if (!(gameid = pkt_check_portarr(pkt, port_arr)))
		return 0;

	switch (gameid) {
	case 16: /* battlefield 1942 */
		if (!pkt_memmem(pkt, 0, bf1942_reply, strlen(bf1942_reply)))
			return 0;

		p = pkt_memmem(pkt, 0, hostport_search, strlen(hostport_search));
		if (!p)
			return 0;

		port = pkt_atoi(pkt, p + strlen(hostport_search));
		server_add(gameid, pkt->addr.sin_addr.s_addr, port, ntohs(pkt->addr.sin_port));
		break;
	
	default:
		server_add_pkt(gameid, pkt);
		break;
	}
	
	return 1;
}

static struct hlswmaster_plugin plugin = {
	.name		= "gamespy1",
	.scan		= &scan,
	.parse		= &parse,
};

void __attribute__ ((constructor)) init(void) {
	register_plugin(&plugin);
}

void __attribute__ ((destructor)) fini(void) {
	unregister_plugin(&plugin);
}