network_udp.c
author truelight
Tue, 21 Dec 2004 17:12:20 +0000
changeset 747 4bf34cf669d0
parent 738 b96ab9e63d22
child 764 7e1e17b7c7d4
permissions -rw-r--r--
(svn r1203) -Fix: the pathfinder no longer sees rail with an other owner as a
possible route. This also makes sure signals don't show red because
there is a train on the track of an other owner.
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#include "stdafx.h"
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#include "network_data.h"
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#ifdef ENABLE_NETWORK
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#include "network_gamelist.h"
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extern void UpdateNetworkGameWindow(bool unselect);
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extern void NetworkPopulateCompanyInfo(void);
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//
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// This file handles all the LAN-stuff
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// Stuff like:
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//   - UDP search over the network
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//
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typedef enum {
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	PACKET_UDP_CLIENT_FIND_SERVER,
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	PACKET_UDP_SERVER_RESPONSE,
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	PACKET_UDP_CLIENT_DETAIL_INFO,
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	PACKET_UDP_SERVER_DETAIL_INFO, // Is not used in OpenTTD itself, only for external querying
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	PACKET_UDP_SERVER_REGISTER, // Packet to register itself to the master server
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	PACKET_UDP_END
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} PacketUDPType;
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static SOCKET _udp_server_socket; // udp server socket
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#define DEF_UDP_RECEIVE_COMMAND(type) void NetworkPacketReceive_ ## type ## _command(Packet *p, struct sockaddr_in *client_addr)
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void NetworkSendUDP_Packet(Packet *p, struct sockaddr_in *recv);
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DEF_UDP_RECEIVE_COMMAND(PACKET_UDP_CLIENT_FIND_SERVER)
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{
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	Packet *packet;
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	// Just a fail-safe.. should never happen
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	if (!_network_udp_server)
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		return;
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	packet = NetworkSend_Init(PACKET_UDP_SERVER_RESPONSE);
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	// Update some game_info
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	_network_game_info.game_date = _date;
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	_network_game_info.map_set = _opt.landscape;
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	NetworkSend_uint8 (packet, NETWORK_GAME_INFO_VERSION);
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	NetworkSend_string(packet, _network_game_info.server_name);
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	NetworkSend_string(packet, _network_game_info.server_revision);
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	NetworkSend_uint8 (packet, _network_game_info.server_lang);
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	NetworkSend_uint8 (packet, _network_game_info.use_password);
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	NetworkSend_uint8 (packet, _network_game_info.clients_max);
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	NetworkSend_uint8 (packet, _network_game_info.clients_on);
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	NetworkSend_uint8 (packet, _network_game_info.spectators_on);
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	NetworkSend_uint16(packet, _network_game_info.game_date);
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	NetworkSend_uint16(packet, _network_game_info.start_date);
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	NetworkSend_string(packet, _network_game_info.map_name);
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	NetworkSend_uint16(packet, _network_game_info.map_width);
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	NetworkSend_uint16(packet, _network_game_info.map_height);
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	NetworkSend_uint8 (packet, _network_game_info.map_set);
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	NetworkSend_uint8 (packet, _network_game_info.dedicated);
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	// Let the client know that we are here
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	NetworkSendUDP_Packet(packet, client_addr);
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	free(packet);
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	DEBUG(net, 2)("[NET][UDP] Queried from %s", inet_ntoa(client_addr->sin_addr));
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}
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DEF_UDP_RECEIVE_COMMAND(PACKET_UDP_SERVER_RESPONSE)
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{
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	NetworkGameList *item;
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	byte game_info_version;
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	// Just a fail-safe.. should never happen
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	if (_network_udp_server)
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		return;
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	game_info_version = NetworkRecv_uint8(p);
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	// Find next item
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	item = NetworkGameListAddItem(inet_addr(inet_ntoa(client_addr->sin_addr)), ntohs(client_addr->sin_port));
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	if (game_info_version == 1) {
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		NetworkRecv_string(p, item->info.server_name, sizeof(item->info.server_name));
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		NetworkRecv_string(p, item->info.server_revision, sizeof(item->info.server_revision));
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		item->info.server_lang = NetworkRecv_uint8(p);
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		item->info.use_password = NetworkRecv_uint8(p);
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		item->info.clients_max = NetworkRecv_uint8(p);
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		item->info.clients_on = NetworkRecv_uint8(p);
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		item->info.spectators_on = NetworkRecv_uint8(p);
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		item->info.game_date = NetworkRecv_uint16(p);
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		item->info.start_date = NetworkRecv_uint16(p);
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		NetworkRecv_string(p, item->info.map_name, sizeof(item->info.map_name));
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		item->info.map_width = NetworkRecv_uint16(p);
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		item->info.map_height = NetworkRecv_uint16(p);
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		item->info.map_set = NetworkRecv_uint8(p);
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		item->info.dedicated = NetworkRecv_uint8(p);
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		if (item->info.hostname[0] == '\0')
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			snprintf(item->info.hostname, sizeof(item->info.hostname), "%s", inet_ntoa(client_addr->sin_addr));
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	}
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	item->online = true;
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	UpdateNetworkGameWindow(false);
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}
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DEF_UDP_RECEIVE_COMMAND(PACKET_UDP_CLIENT_DETAIL_INFO)
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{
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	NetworkClientState *cs;
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	NetworkClientInfo *ci;
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	Packet *packet;
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	Player *player;
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	byte active = 0;
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	byte current = 0;
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	int i;
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	// Just a fail-safe.. should never happen
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	if (!_network_udp_server)
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		return;
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	packet = NetworkSend_Init(PACKET_UDP_SERVER_DETAIL_INFO);
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	FOR_ALL_PLAYERS(player) {
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		if (player->is_active)
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			active++;
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	}
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	/* Send the amount of active companies */
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	NetworkSend_uint8 (packet, NETWORK_COMPANY_INFO_VERSION);
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	NetworkSend_uint8 (packet, active);
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	/* Fetch the latest version of everything */
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	NetworkPopulateCompanyInfo();
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	/* Go through all the players */
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	FOR_ALL_PLAYERS(player) {
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		/* Skip non-active players */
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		if (!player->is_active)
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			continue;
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   140
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		current++;
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   142
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		/* Send the information */
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		NetworkSend_uint8 (packet, current);
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		NetworkSend_string(packet, _network_player_info[player->index].company_name);
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		NetworkSend_uint8 (packet, _network_player_info[player->index].inaugurated_year);
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		NetworkSend_uint64(packet, _network_player_info[player->index].company_value);
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		NetworkSend_uint64(packet, _network_player_info[player->index].money);
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		NetworkSend_uint64(packet, _network_player_info[player->index].income);
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		NetworkSend_uint16(packet, _network_player_info[player->index].performance);
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		for (i = 0; i < NETWORK_VEHICLE_TYPES; i++)
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			NetworkSend_uint16(packet, _network_player_info[player->index].num_vehicle[i]);
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		for (i = 0; i < NETWORK_STATION_TYPES; i++)
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			NetworkSend_uint16(packet, _network_player_info[player->index].num_station[i]);
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		/* Find the clients that are connected to this player */
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		FOR_ALL_CLIENTS(cs) {
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			ci = DEREF_CLIENT_INFO(cs);
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			if ((ci->client_playas - 1) == player->index) {
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				/* The uint8 == 1 indicates that a client is following */
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				NetworkSend_uint8(packet, 1);
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				NetworkSend_string(packet, ci->client_name);
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				NetworkSend_string(packet, ci->unique_id);
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				NetworkSend_uint16(packet, ci->join_date);
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			}
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		}
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		/* Also check for the server itself */
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		ci = NetworkFindClientInfoFromIndex(NETWORK_SERVER_INDEX);
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		if ((ci->client_playas - 1) == player->index) {
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			/* The uint8 == 1 indicates that a client is following */
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			NetworkSend_uint8(packet, 1);
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			NetworkSend_string(packet, ci->client_name);
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			NetworkSend_string(packet, ci->unique_id);
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			NetworkSend_uint16(packet, ci->join_date);
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		}
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		/* Indicates end of client list */
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		NetworkSend_uint8(packet, 0);
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	}
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	/* And check if we have any spectators */
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	FOR_ALL_CLIENTS(cs) {
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		ci = DEREF_CLIENT_INFO(cs);
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		if ((ci->client_playas - 1) > MAX_PLAYERS) {
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			/* The uint8 == 1 indicates that a client is following */
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			NetworkSend_uint8(packet, 1);
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			NetworkSend_string(packet, ci->client_name);
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			NetworkSend_string(packet, ci->unique_id);
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			NetworkSend_uint16(packet, ci->join_date);
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		}
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	}
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	/* Also check for the server itself */
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	ci = NetworkFindClientInfoFromIndex(NETWORK_SERVER_INDEX);
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	if ((ci->client_playas - 1) > MAX_PLAYERS) {
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		/* The uint8 == 1 indicates that a client is following */
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		NetworkSend_uint8(packet, 1);
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		NetworkSend_string(packet, ci->client_name);
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		NetworkSend_string(packet, ci->unique_id);
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		NetworkSend_uint16(packet, ci->join_date);
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	}
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	/* Indicates end of client list */
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	NetworkSend_uint8(packet, 0);
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	NetworkSendUDP_Packet(packet, client_addr);
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	free(packet);
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   211
}
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   212
543
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// The layout for the receive-functions by UDP
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typedef void NetworkUDPPacket(Packet *p, struct sockaddr_in *client_addr);
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static NetworkUDPPacket* const _network_udp_packet[] = {
638
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	RECEIVE_COMMAND(PACKET_UDP_CLIENT_FIND_SERVER),
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	RECEIVE_COMMAND(PACKET_UDP_SERVER_RESPONSE),
638
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	RECEIVE_COMMAND(PACKET_UDP_CLIENT_DETAIL_INFO),
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   221
	NULL,
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	NULL,
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};
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// If this fails, check the array above with network_data.h
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assert_compile(lengthof(_network_udp_packet) == PACKET_UDP_END);
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void NetworkHandleUDPPacket(Packet *p, struct sockaddr_in *client_addr)
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{
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	byte type;
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	type = NetworkRecv_uint8(p);
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	if (type < PACKET_UDP_END && _network_udp_packet[type] != NULL) {
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		_network_udp_packet[type](p, client_addr);
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	}	else {
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		DEBUG(net, 0)("[NET][UDP] Received invalid packet type %d", type);
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	}
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}
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   241
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// Send a packet over UDP
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void NetworkSendUDP_Packet(Packet *p, struct sockaddr_in *recv)
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{
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	SOCKET udp;
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	int res;
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	// Find the correct socket
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	if (_network_udp_server)
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		udp = _udp_server_socket;
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	else
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		udp = _udp_client_socket;
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	// Put the length in the buffer
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	p->buffer[0] = p->size & 0xFF;
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	p->buffer[1] = p->size >> 8;
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	// Send the buffer
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	res = sendto(udp, p->buffer, p->size, 0, (struct sockaddr *)recv, sizeof(*recv));
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	// Check for any errors, but ignore it for the rest
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	if (res == -1) {
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		DEBUG(net, 1)("[NET][UDP] Send error: %i", GET_LAST_ERROR());
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	}
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}
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// Start UDP listener
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bool NetworkUDPListen(uint32 host, uint16 port)
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{
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	struct sockaddr_in sin;
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	SOCKET udp;
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	// Make sure sockets are closed
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	if (_network_udp_server)
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		closesocket(_udp_server_socket);
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	else
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		closesocket(_udp_client_socket);
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	udp = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
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	if (udp == INVALID_SOCKET) {
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		DEBUG(net, 1)("[NET][UDP] Failed to start UDP support");
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		return false;
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	}
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	// set nonblocking mode for socket
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	{
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		unsigned long blocking = 1;
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		ioctlsocket(udp, FIONBIO, &blocking);
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	}
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   291
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	sin.sin_family = AF_INET;
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	// Listen on all IPs
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	sin.sin_addr.s_addr = host;
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	sin.sin_port = htons(port);
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   296
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	if (bind(udp, (struct sockaddr*)&sin, sizeof(sin)) != 0) {
629
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		DEBUG(net, 1) ("[NET][UDP] error: bind failed on %s:%i", inet_ntoa(*(struct in_addr *)&host), port);
543
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		return false;
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	}
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   301
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	// enable broadcasting
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	// allow reusing
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	{
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		unsigned long val = 1;
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		setsockopt(udp, SOL_SOCKET, SO_BROADCAST, (char *) &val , sizeof(val));
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		val = 1;
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		setsockopt(udp, SOL_SOCKET, SO_REUSEADDR, (char *) &val , sizeof(val));
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	}
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   310
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	if (_network_udp_server)
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		_udp_server_socket = udp;
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   313
	else
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		_udp_client_socket = udp;
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   316
	DEBUG(net, 1)("[NET][UDP] Listening on port %s:%d", inet_ntoa(*(struct in_addr *)&host), port);
543
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	return true;
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   319
}
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   321
// Close UDP connection
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   322
void NetworkUDPClose(void)
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   323
{
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   324
	DEBUG(net, 1) ("[NET][UDP] Closed listener");
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   325
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   326
	if (_network_udp_server) {
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		closesocket(_udp_server_socket);
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		_udp_server_socket = INVALID_SOCKET;
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   329
		_network_udp_server = false;
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   330
		_network_udp_broadcast = 0;
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   331
	} else {
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   332
		closesocket(_udp_client_socket);
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   333
		_udp_client_socket = INVALID_SOCKET;
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   334
		_network_udp_broadcast = 0;
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   335
	}
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   336
}
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   337
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   338
// Receive something on UDP level
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   339
void NetworkUDPReceive(void)
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   340
{
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   341
	struct sockaddr_in client_addr;
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   342
#ifndef __MORPHOS__
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   343
	int client_len;
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   344
#else
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   345
	LONG client_len; // for some reason we need a 'LONG' under MorphOS
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   346
#endif
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   347
	int nbytes;
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   348
	static Packet *p = NULL;
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   349
	int packet_len;
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   350
	SOCKET udp;
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   351
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   352
	if (_network_udp_server)
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   353
		udp = _udp_server_socket;
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   354
	else
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   355
		udp = _udp_client_socket;
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   356
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   357
	// If p is NULL, malloc him.. this prevents unneeded mallocs
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   358
	if (p == NULL)
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   359
		p = malloc(sizeof(Packet));
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   360
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   361
	packet_len = sizeof(p->buffer);
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   362
	client_len = sizeof(client_addr);
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   363
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   364
	// Try to receive anything
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   365
	nbytes = recvfrom(udp, p->buffer, packet_len, 0, (struct sockaddr *)&client_addr, &client_len);
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   366
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   367
	// We got some bytes.. just asume we receive the whole packet
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   368
	if (nbytes > 0) {
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   369
		// Get the size of the buffer
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   370
		p->size = (uint16)p->buffer[0];
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   371
		p->size += (uint16)p->buffer[1] << 8;
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   372
		// Put the position on the right place
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   373
		p->pos = 2;
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   374
		p->next = NULL;
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   375
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   376
		// Handle the packet
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   377
		NetworkHandleUDPPacket(p, &client_addr);
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diff changeset
   378
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   379
		// Free the packet
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   380
		free(p);
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   381
		p = NULL;
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   382
	}
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diff changeset
   383
}
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parents:
diff changeset
   384
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diff changeset
   385
// Broadcast to all ips
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parents:
diff changeset
   386
void NetworkUDPBroadCast(void)
946badd71033 (svn r942) -Merged branch/network back into the trunk
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parents:
diff changeset
   387
{
946badd71033 (svn r942) -Merged branch/network back into the trunk
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diff changeset
   388
	int i;
946badd71033 (svn r942) -Merged branch/network back into the trunk
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parents:
diff changeset
   389
	struct sockaddr_in out_addr;
946badd71033 (svn r942) -Merged branch/network back into the trunk
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diff changeset
   390
	byte *bcptr;
946badd71033 (svn r942) -Merged branch/network back into the trunk
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diff changeset
   391
	uint32 bcaddr;
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   392
	Packet *p;
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parents:
diff changeset
   393
946badd71033 (svn r942) -Merged branch/network back into the trunk
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diff changeset
   394
	// Init the packet
638
cb9f5f50d3c7 (svn r1069) -Add: [Network] Added UDP-packet for detail info about a server for
truelight
parents: 629
diff changeset
   395
	p = NetworkSend_Init(PACKET_UDP_CLIENT_FIND_SERVER);
543
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parents:
diff changeset
   396
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diff changeset
   397
	// Go through all the ips on this pc
946badd71033 (svn r942) -Merged branch/network back into the trunk
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diff changeset
   398
	i = 0;
946badd71033 (svn r942) -Merged branch/network back into the trunk
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parents:
diff changeset
   399
	while (_network_ip_list[i] != 0) {
946badd71033 (svn r942) -Merged branch/network back into the trunk
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parents:
diff changeset
   400
		bcaddr = _network_ip_list[i];
946badd71033 (svn r942) -Merged branch/network back into the trunk
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parents:
diff changeset
   401
		bcptr = (byte *)&bcaddr;
946badd71033 (svn r942) -Merged branch/network back into the trunk
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parents:
diff changeset
   402
		// Make the address a broadcast address
946badd71033 (svn r942) -Merged branch/network back into the trunk
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parents:
diff changeset
   403
		bcptr[3] = 255;
946badd71033 (svn r942) -Merged branch/network back into the trunk
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parents:
diff changeset
   404
946badd71033 (svn r942) -Merged branch/network back into the trunk
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parents:
diff changeset
   405
		DEBUG(net, 6)("[NET][UDP] Broadcasting to %s", inet_ntoa(*(struct in_addr *)&bcaddr));
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   406
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   407
		out_addr.sin_family = AF_INET;
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   408
		out_addr.sin_port = htons(_network_server_port);
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   409
		out_addr.sin_addr.s_addr = bcaddr;
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   410
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   411
		NetworkSendUDP_Packet(p, &out_addr);
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   412
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   413
		i++;
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   414
	}
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   415
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   416
	free(p);
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   417
}
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   418
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   419
// Find all servers
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   420
void NetworkUDPSearchGame(void)
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   421
{
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   422
	// We are still searching..
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   423
	if (_network_udp_broadcast > 0)
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   424
		return;
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   425
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   426
	// No UDP-socket yet..
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   427
	if (_udp_client_socket == INVALID_SOCKET)
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   428
		if (!NetworkUDPListen(0, 0))
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   429
			return;
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   430
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   431
	DEBUG(net, 0)("[NET][UDP] Searching server");
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   432
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   433
	NetworkUDPBroadCast();
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   434
	_network_udp_broadcast = 300; // Stay searching for 300 ticks
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   435
}
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   436
738
b96ab9e63d22 (svn r1194) Feature: You can now add and remove servers from the server list. Those will be remembered until you delete them by pressing the Delete key.
dominik
parents: 716
diff changeset
   437
NetworkGameList *NetworkUDPQueryServer(const byte* host, unsigned short port)
543
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   438
{
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   439
	struct sockaddr_in out_addr;
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   440
	Packet *p;
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   441
	NetworkGameList *item;
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   442
	char hostname[NETWORK_HOSTNAME_LENGTH];
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   443
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   444
	// No UDP-socket yet..
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   445
	if (_udp_client_socket == INVALID_SOCKET)
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   446
		if (!NetworkUDPListen(0, 0))
738
b96ab9e63d22 (svn r1194) Feature: You can now add and remove servers from the server list. Those will be remembered until you delete them by pressing the Delete key.
dominik
parents: 716
diff changeset
   447
			return NULL;
543
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   448
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   449
	ttd_strlcpy(hostname, host, sizeof(hostname));
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   450
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   451
	out_addr.sin_family = AF_INET;
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   452
	out_addr.sin_port = htons(port);
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   453
	out_addr.sin_addr.s_addr = NetworkResolveHost(host);
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   454
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   455
	// Clear item in gamelist
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   456
	item = NetworkGameListAddItem(inet_addr(inet_ntoa(out_addr.sin_addr)), ntohs(out_addr.sin_port));
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   457
	memset(&item->info, 0, sizeof(item->info));
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   458
	snprintf(item->info.server_name, sizeof(item->info.server_name), "%s", hostname);
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   459
	snprintf(item->info.hostname, sizeof(item->info.hostname), "%s", hostname);
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   460
	item->online = false;
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   461
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   462
	// Init the packet
638
cb9f5f50d3c7 (svn r1069) -Add: [Network] Added UDP-packet for detail info about a server for
truelight
parents: 629
diff changeset
   463
	p = NetworkSend_Init(PACKET_UDP_CLIENT_FIND_SERVER);
543
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   464
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   465
	NetworkSendUDP_Packet(p, &out_addr);
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   466
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   467
	free(p);
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   468
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   469
	UpdateNetworkGameWindow(false);
738
b96ab9e63d22 (svn r1194) Feature: You can now add and remove servers from the server list. Those will be remembered until you delete them by pressing the Delete key.
dominik
parents: 716
diff changeset
   470
	return item;
543
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   471
}
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   472
668
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   473
/* Register us to the master server
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   474
     This function checks if it needs to send an advertise */
716
8af847728d5b (svn r1168) -Cleanup: [Network] Cleaned the network code a bit. Added 'const'
truelight
parents: 668
diff changeset
   475
void NetworkUDPAdvertise(void)
668
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   476
{
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   477
	struct sockaddr_in out_addr;
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   478
	Packet *p;
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   479
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   480
	/* Check if we should send an advertise */
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   481
	if (!_networking || !_network_server || !_network_udp_server || !_network_advertise)
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   482
		return;
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   483
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   484
	/* Only send once in the 450 game-days (about 15 minutes) */
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   485
	if (_network_last_advertise_date + 450 > _date)
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   486
		return;
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   487
	_network_last_advertise_date = _date;
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   488
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   489
	/* Find somewhere to send */
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   490
	out_addr.sin_family = AF_INET;
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   491
	out_addr.sin_port = htons(NETWORK_MASTER_SERVER_PORT);
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   492
	out_addr.sin_addr.s_addr = NetworkResolveHost(NETWORK_MASTER_SERVER_HOST);
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   493
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   494
	DEBUG(net, 1)("[NET][UDP] Advertising to master server");
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   495
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   496
	/* Send the packet */
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   497
	p = NetworkSend_Init(PACKET_UDP_SERVER_REGISTER);
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   498
	/* Packet is: WELCOME_MESSAGE, Version, server_port */
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   499
	NetworkSend_string(p, NETWORK_MASTER_SERVER_WELCOME_MESSAGE);
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   500
	NetworkSend_uint8(p, NETWORK_MASTER_SERVER_VERSION);
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   501
	NetworkSend_uint16(p, _network_server_port);
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   502
	NetworkSendUDP_Packet(p, &out_addr);
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   503
	free(p);
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   504
}
1fe298df8526 (svn r1106) -Add: [Network] Added master-server protocol and advertise to
truelight
parents: 638
diff changeset
   505
543
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   506
void NetworkUDPInitialize(void)
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   507
{
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   508
	_udp_client_socket = INVALID_SOCKET;
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   509
	_udp_server_socket = INVALID_SOCKET;
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   510
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   511
	_network_udp_server = false;
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   512
	_network_udp_broadcast = 0;
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   513
}
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   514
946badd71033 (svn r942) -Merged branch/network back into the trunk
truelight
parents:
diff changeset
   515
#endif /* ENABLE_NETWORK */