(svn r7751) -Codechange: move network_* to a new network map. Furthermore move the low level network functions to network/core, so they can be reused by the masterserver and website-serverlist-updater.

1 files changed, 1451 insertions, 0 deletions

diff --git a/network/network.c b/network/network.c
new file mode 100644
index 000000000..83f7eedcd
--- /dev/null
+++ b/network/network.c
@@ -0,0 +1,1451 @@
+/* $Id$ */
+
+#include "../stdafx.h"
+#include "network_data.h"
+
+#if defined(WITH_REV)
+	extern const char _openttd_revision[];
+#elif defined(WITH_REV_HACK)
+	#define WITH_REV
+	const char _openttd_revision[] = WITH_REV_HACK;
+#else
+	const char _openttd_revision[] = NOREV_STRING;
+#endif
+
+
+#ifdef ENABLE_NETWORK
+
+#include "../openttd.h"
+#include "../debug.h"
+#include "../functions.h"
+#include "../string.h"
+#include "../strings.h"
+#include "../map.h"
+#include "../command.h"
+#include "../variables.h"
+#include "../date.h"
+#include "../newgrf_config.h"
+#include "../table/strings.h"
+#include "network_client.h"
+#include "network_server.h"
+#include "network_udp.h"
+#include "network_gamelist.h"
+#include "core/udp.h"
+#include "core/tcp.h"
+#include "network_gui.h"
+#include "../console.h" /* IConsoleCmdExec */
+#include <stdarg.h> /* va_list */
+#include "../md5.h"
+
+#ifdef __MORPHOS__
+// the library base is required here
+struct Library *SocketBase = NULL;
+#endif
+
+// The listen socket for the server
+static SOCKET _listensocket;
+
+// The amount of clients connected
+static byte _network_clients_connected = 0;
+// The index counter for new clients (is never decreased)
+static uint16 _network_client_index = NETWORK_SERVER_INDEX + 1;
+
+/* Some externs / forwards */
+extern void StateGameLoop(void);
+
+// Function that looks up the CI for a given client-index
+NetworkClientInfo *NetworkFindClientInfoFromIndex(uint16 client_index)
+{
+	NetworkClientInfo *ci;
+
+	for (ci = _network_client_info; ci != endof(_network_client_info); ci++) {
+		if (ci->client_index == client_index) return ci;
+	}
+
+	return NULL;
+}
+
+/** Return the CI for a given IP
+ * @param ip IP of the client we are looking for. This must be in string-format
+ * @return return a pointer to the corresponding NetworkClientInfo struct or NULL on failure */
+NetworkClientInfo *NetworkFindClientInfoFromIP(const char *ip)
+{
+	NetworkClientInfo *ci;
+	uint32 ip_number = inet_addr(ip);
+
+	for (ci = _network_client_info; ci != endof(_network_client_info); ci++) {
+		if (ci->client_ip == ip_number) return ci;
+	}
+
+	return NULL;
+}
+
+// Function that looks up the CS for a given client-index
+NetworkClientState *NetworkFindClientStateFromIndex(uint16 client_index)
+{
+	NetworkClientState *cs;
+
+	for (cs = _clients; cs != &_clients[MAX_CLIENT_INFO]; cs++) {
+		if (cs->index == client_index) return cs;
+	}
+
+	return NULL;
+}
+
+// NetworkGetClientName is a server-safe function to get the name of the client
+//  if the user did not send it yet, Client #<no> is used.
+void NetworkGetClientName(char *client_name, size_t size, const NetworkClientState *cs)
+{
+	const NetworkClientInfo *ci = DEREF_CLIENT_INFO(cs);
+
+	if (ci->client_name[0] == '\0') {
+		snprintf(client_name, size, "Client #%4d", cs->index);
+	} else {
+		ttd_strlcpy(client_name, ci->client_name, size);
+	}
+}
+
+byte NetworkSpectatorCount(void)
+{
+	const NetworkClientState *cs;
+	byte count = 0;
+
+	FOR_ALL_CLIENTS(cs) {
+		if (DEREF_CLIENT_INFO(cs)->client_playas == PLAYER_SPECTATOR) count++;
+	}
+
+	return count;
+}
+
+// This puts a text-message to the console, or in the future, the chat-box,
+//  (to keep it all a bit more general)
+// If 'self_send' is true, this is the client who is sending the message
+void CDECL NetworkTextMessage(NetworkAction action, uint16 color, bool self_send, const char *name, const char *str, ...)
+{
+	char buf[1024];
+	va_list va;
+	const int duration = 10; // Game days the messages stay visible
+	char message[1024];
+	char temp[1024];
+
+	va_start(va, str);
+	vsnprintf(buf, lengthof(buf), str, va);
+	va_end(va);
+
+	switch (action) {
+		case NETWORK_ACTION_SERVER_MESSAGE:
+			color = 1;
+			snprintf(message, sizeof(message), "*** %s", buf);
+			break;
+		case NETWORK_ACTION_JOIN:
+			color = 1;
+			GetString(temp, STR_NETWORK_CLIENT_JOINED, lastof(temp));
+			snprintf(message, sizeof(message), "*** %s %s", name, temp);
+			break;
+		case NETWORK_ACTION_LEAVE:
+			color = 1;
+			GetString(temp, STR_NETWORK_ERR_LEFT, lastof(temp));
+			snprintf(message, sizeof(message), "*** %s %s (%s)", name, temp, buf);
+			break;
+		case NETWORK_ACTION_GIVE_MONEY:
+			if (self_send) {
+				SetDParamStr(0, name);
+				SetDParam(1, atoi(buf));
+				GetString(temp, STR_NETWORK_GAVE_MONEY_AWAY, lastof(temp));
+				snprintf(message, sizeof(message), "*** %s", temp);
+			} else {
+				SetDParam(0, atoi(buf));
+				GetString(temp, STR_NETWORK_GIVE_MONEY, lastof(temp));
+				snprintf(message, sizeof(message), "*** %s %s", name, temp);
+			}
+			break;
+		case NETWORK_ACTION_NAME_CHANGE:
+			GetString(temp, STR_NETWORK_NAME_CHANGE, lastof(temp));
+			snprintf(message, sizeof(message), "*** %s %s %s", name, temp, buf);
+			break;
+		case NETWORK_ACTION_CHAT_COMPANY:
+			SetDParamStr(0, name);
+			SetDParamStr(1, buf);
+			GetString(temp, self_send ? STR_NETWORK_CHAT_TO_COMPANY : STR_NETWORK_CHAT_COMPANY, lastof(temp));
+			ttd_strlcpy(message, temp, sizeof(message));
+			break;
+		case NETWORK_ACTION_CHAT_CLIENT:
+			SetDParamStr(0, name);
+			SetDParamStr(1, buf);
+			GetString(temp, self_send ? STR_NETWORK_CHAT_TO_CLIENT : STR_NETWORK_CHAT_CLIENT, lastof(temp));
+			ttd_strlcpy(message, temp, sizeof(message));
+			break;
+		default:
+			SetDParamStr(0, name);
+			SetDParamStr(1, buf);
+			GetString(temp, STR_NETWORK_CHAT_ALL, lastof(temp));
+			ttd_strlcpy(message, temp, sizeof(message));
+			break;
+	}
+
+	IConsolePrintF(color, "%s", message);
+	AddTextMessage(color, duration, "%s", message);
+}
+
+// Calculate the frame-lag of a client
+uint NetworkCalculateLag(const NetworkClientState *cs)
+{
+	int lag = cs->last_frame_server - cs->last_frame;
+	// This client has missed his ACK packet after 1 DAY_TICKS..
+	//  so we increase his lag for every frame that passes!
+	// The packet can be out by a max of _net_frame_freq
+	if (cs->last_frame_server + DAY_TICKS + _network_frame_freq < _frame_counter)
+		lag += _frame_counter - (cs->last_frame_server + DAY_TICKS + _network_frame_freq);
+
+	return lag;
+}
+
+
+// There was a non-recoverable error, drop back to the main menu with a nice
+//  error
+static void NetworkError(StringID error_string)
+{
+	_switch_mode = SM_MENU;
+	_switch_mode_errorstr = error_string;
+}
+
+static void ClientStartError(const char *error)
+{
+	DEBUG(net, 0, "[client] could not start network: %s",error);
+	NetworkError(STR_NETWORK_ERR_CLIENT_START);
+}
+
+static void ServerStartError(const char *error)
+{
+	DEBUG(net, 0, "[server] could not start network: %s",error);
+	NetworkError(STR_NETWORK_ERR_SERVER_START);
+}
+
+static void NetworkClientError(NetworkRecvStatus res, NetworkClientState* cs)
+{
+	// First, send a CLIENT_ERROR to the server, so he knows we are
+	//  disconnection (and why!)
+	NetworkErrorCode errorno;
+
+	// We just want to close the connection..
+	if (res == NETWORK_RECV_STATUS_CLOSE_QUERY) {
+		cs->has_quit = true;
+		NetworkCloseClient(cs);
+		_networking = false;
+
+		DeleteWindowById(WC_NETWORK_STATUS_WINDOW, 0);
+		return;
+	}
+
+	switch (res) {
+		case NETWORK_RECV_STATUS_DESYNC:   errorno = NETWORK_ERROR_DESYNC; break;
+		case NETWORK_RECV_STATUS_SAVEGAME: errorno = NETWORK_ERROR_SAVEGAME_FAILED; break;
+		default:                           errorno = NETWORK_ERROR_GENERAL; break;
+	}
+	// This means we fucked up and the server closed the connection
+	if (res != NETWORK_RECV_STATUS_SERVER_ERROR && res != NETWORK_RECV_STATUS_SERVER_FULL &&
+			res != NETWORK_RECV_STATUS_SERVER_BANNED) {
+		SEND_COMMAND(PACKET_CLIENT_ERROR)(errorno);
+
+		// Dequeue all commands before closing the socket
+		NetworkSend_Packets(DEREF_CLIENT(0));
+	}
+
+	_switch_mode = SM_MENU;
+	NetworkCloseClient(cs);
+	_networking = false;
+}
+
+/** Retrieve a string representation of an internal error number
+ * @param buf buffer where the error message will be stored
+ * @param err NetworkErrorCode
+ * @return returns a pointer to the error message (buf) */
+char* GetNetworkErrorMsg(char* buf, NetworkErrorCode err, const char* last)
+{
+	/* List of possible network errors, used by
+	 * PACKET_SERVER_ERROR and PACKET_CLIENT_ERROR */
+	static const StringID network_error_strings[] = {
+		STR_NETWORK_ERR_CLIENT_GENERAL,
+		STR_NETWORK_ERR_CLIENT_DESYNC,
+		STR_NETWORK_ERR_CLIENT_SAVEGAME,
+		STR_NETWORK_ERR_CLIENT_CONNECTION_LOST,
+		STR_NETWORK_ERR_CLIENT_PROTOCOL_ERROR,
+		STR_NETWORK_ERR_CLIENT_NOT_AUTHORIZED,
+		STR_NETWORK_ERR_CLIENT_NOT_EXPECTED,
+		STR_NETWORK_ERR_CLIENT_WRONG_REVISION,
+		STR_NETWORK_ERR_CLIENT_NAME_IN_USE,
+		STR_NETWORK_ERR_CLIENT_WRONG_PASSWORD,
+		STR_NETWORK_ERR_CLIENT_PLAYER_MISMATCH,
+		STR_NETWORK_ERR_CLIENT_KICKED,
+		STR_NETWORK_ERR_CLIENT_CHEATER,
+		STR_NETWORK_ERR_CLIENT_SERVER_FULL
+	};
+
+	if (err >= lengthof(network_error_strings)) err = 0;
+
+	return GetString(buf, network_error_strings[err], last);
+}
+
+/* Count the number of active clients connected */
+static uint NetworkCountPlayers(void)
+{
+	const NetworkClientState *cs;
+	uint count = 0;
+
+	FOR_ALL_CLIENTS(cs) {
+		const NetworkClientInfo *ci = DEREF_CLIENT_INFO(cs);
+		if (IsValidPlayer(ci->client_playas)) count++;
+	}
+
+	return count;
+}
+
+static bool _min_players_paused = false;
+
+/* Check if the minimum number of players has been reached and pause or unpause the game as appropriate */
+void CheckMinPlayers(void)
+{
+	if (!_network_dedicated) return;
+
+	if (NetworkCountPlayers() < _network_min_players) {
+		if (_min_players_paused) return;
+
+		_min_players_paused = true;
+		DoCommandP(0, 1, 0, NULL, CMD_PAUSE);
+		NetworkServer_HandleChat(NETWORK_ACTION_SERVER_MESSAGE, DESTTYPE_BROADCAST, 0, "Game paused (not enough players)", NETWORK_SERVER_INDEX);
+	} else {
+		if (!_min_players_paused) return;
+
+		_min_players_paused = false;
+		DoCommandP(0, 0, 0, NULL, CMD_PAUSE);
+		NetworkServer_HandleChat(NETWORK_ACTION_SERVER_MESSAGE, DESTTYPE_BROADCAST, 0, "Game unpaused (enough players)", NETWORK_SERVER_INDEX);
+	}
+}
+
+// Find all IP-aliases for this host
+static void NetworkFindIPs(void)
+{
+	int i;
+
+#if defined(BEOS_NET_SERVER) /* doesn't have neither getifaddrs or net/if.h */
+	/* Based on Andrew Bachmann's netstat+.c. Big thanks to him! */
+	int _netstat(int fd, char **output, int verbose);
+
+	int seek_past_header(char **pos, const char *header) {
+		char *new_pos = strstr(*pos, header);
+		if (new_pos == 0) {
+			return B_ERROR;
+		}
+		*pos += strlen(header) + new_pos - *pos + 1;
+		return B_OK;
+	}
+
+	int output_length;
+	char *output_pointer = NULL;
+	char **output;
+	int sock = socket(AF_INET, SOCK_DGRAM, 0);
+	i = 0;
+
+	// If something fails, make sure the list is empty
+	_broadcast_list[0] = 0;
+
+	if (sock < 0) {
+		DEBUG(net, 0, "[core] error creating socket");
+		return;
+	}
+
+	output_length = _netstat(sock, &output_pointer, 1);
+	if (output_length < 0) {
+		DEBUG(net, 0, "[core] error running _netstat");
+		return;
+	}
+
+	output = &output_pointer;
+	if (seek_past_header(output, "IP Interfaces:") == B_OK) {
+		for (;;) {
+			uint32 n, fields, read;
+			uint8 i1, i2, i3, i4, j1, j2, j3, j4;
+			struct in_addr inaddr;
+			uint32 ip;
+			uint32 netmask;
+
+			fields = sscanf(*output, "%u: %hhu.%hhu.%hhu.%hhu, netmask %hhu.%hhu.%hhu.%hhu%n",
+												&n, &i1,&i2,&i3,&i4, &j1,&j2,&j3,&j4, &read);
+			read += 1;
+			if (fields != 9) {
+				break;
+			}
+
+			ip      = (uint32)i1 << 24 | (uint32)i2 << 16 | (uint32)i3 << 8 | (uint32)i4;
+			netmask = (uint32)j1 << 24 | (uint32)j2 << 16 | (uint32)j3 << 8 | (uint32)j4;
+
+			if (ip != INADDR_LOOPBACK && ip != INADDR_ANY) {
+				inaddr.s_addr = htonl(ip | ~netmask);
+				_broadcast_list[i] = inaddr.s_addr;
+				i++;
+			}
+			if (read < 0) {
+				break;
+			}
+			*output += read;
+		}
+		/* XXX - Using either one of these crashes openttd heavily? - wber */
+		/*free(output_pointer);*/
+		/*free(output);*/
+		closesocket(sock);
+	}
+#elif defined(HAVE_GETIFADDRS)
+	struct ifaddrs *ifap, *ifa;
+
+	// If something fails, make sure the list is empty
+	_broadcast_list[0] = 0;
+
+	if (getifaddrs(&ifap) != 0)
+		return;
+
+	i = 0;
+	for (ifa = ifap; ifa != NULL; ifa = ifa->ifa_next) {
+		if (!(ifa->ifa_flags & IFF_BROADCAST)) continue;
+		if (ifa->ifa_broadaddr == NULL) continue;
+		if (ifa->ifa_broadaddr->sa_family != AF_INET) continue;
+		_broadcast_list[i] = ((struct sockaddr_in*)ifa->ifa_broadaddr)->sin_addr.s_addr;
+		i++;
+	}
+	freeifaddrs(ifap);
+
+#else /* not HAVE_GETIFADDRS */
+	SOCKET sock;
+#ifdef WIN32
+	DWORD len = 0;
+	INTERFACE_INFO ifo[MAX_INTERFACES];
+	uint j;
+#else
+	char buf[4 * 1024]; // Arbitrary buffer size
+	struct ifconf ifconf;
+	const char* buf_end;
+	const char* p;
+#endif
+
+	// If something fails, make sure the list is empty
+	_broadcast_list[0] = 0;
+
+	sock = socket(AF_INET, SOCK_DGRAM, 0);
+	if (sock == INVALID_SOCKET) return;
+
+#ifdef WIN32
+	memset(&ifo[0], 0, sizeof(ifo));
+	if ((WSAIoctl(sock, SIO_GET_INTERFACE_LIST, NULL, 0, &ifo[0], sizeof(ifo), &len, NULL, NULL)) != 0) {
+		closesocket(sock);
+		return;
+	}
+
+	i = 0;
+	for (j = 0; j < len / sizeof(*ifo); j++) {
+		if (ifo[j].iiFlags & IFF_LOOPBACK) continue;
+		if (!(ifo[j].iiFlags & IFF_BROADCAST)) continue;
+		/* iiBroadcast is unusable, because it always seems to be set to
+		 * 255.255.255.255.
+		 */
+		_broadcast_list[i++] =
+			 ifo[j].iiAddress.AddressIn.sin_addr.s_addr |
+			~ifo[j].iiNetmask.AddressIn.sin_addr.s_addr;
+	}
+#else
+	ifconf.ifc_len = sizeof(buf);
+	ifconf.ifc_buf = buf;
+	if (ioctl(sock, SIOCGIFCONF, &ifconf) == -1) {
+		closesocket(sock);
+		return;
+	}
+
+	i = 0;
+	buf_end = buf + ifconf.ifc_len;
+	for (p = buf; p < buf_end;) {
+		const struct ifreq* req = (const struct ifreq*)p;
+
+		if (req->ifr_addr.sa_family == AF_INET) {
+			struct ifreq r;
+
+			strncpy(r.ifr_name, req->ifr_name, lengthof(r.ifr_name));
+			if (ioctl(sock, SIOCGIFFLAGS, &r) != -1 &&
+					r.ifr_flags & IFF_BROADCAST &&
+					ioctl(sock, SIOCGIFBRDADDR, &r) != -1) {
+				_broadcast_list[i++] =
+					((struct sockaddr_in*)&r.ifr_broadaddr)->sin_addr.s_addr;
+			}
+		}
+
+		p += sizeof(struct ifreq);
+#ifdef AF_LINK
+		p += req->ifr_addr.sa_len - sizeof(struct sockaddr);
+#endif
+	}
+#endif
+
+	closesocket(sock);
+#endif /* not HAVE_GETIFADDRS */
+
+	_broadcast_list[i] = 0;
+
+	DEBUG(net, 3, "Detected broadcast addresses:");
+	// Now display to the debug all the detected ips
+	for (i = 0; _broadcast_list[i] != 0; i++) {
+		DEBUG(net, 3, "%d) %s", i, inet_ntoa(*(struct in_addr *)&_broadcast_list[i]));//inet_ntoa(inaddr));
+	}
+}
+
+// Resolve a hostname to a inet_addr
+unsigned long NetworkResolveHost(const char *hostname)
+{
+	in_addr_t ip;
+
+	// First try: is it an ip address?
+	ip = inet_addr(hostname);
+
+	// If not try to resolve the name
+	if (ip == INADDR_NONE) {
+		struct hostent *he = gethostbyname(hostname);
+		if (he == NULL) {
+			DEBUG(net, 0, "Cannot resolve '%s'", hostname);
+		} else {
+			struct in_addr addr = *(struct in_addr *)he->h_addr_list[0];
+			DEBUG(net, 1, "Resolved '%s' to %s", hostname, inet_ntoa(addr));
+			ip = addr.s_addr;
+		}
+	}
+	return ip;
+}
+
+// Converts a string to ip/port/player
+//  Format: IP#player:port
+//
+// connection_string will be re-terminated to seperate out the hostname, and player and port will
+// be set to the player and port strings given by the user, inside the memory area originally
+// occupied by connection_string.
+void ParseConnectionString(const char **player, const char **port, char *connection_string)
+{
+	char *p;
+	for (p = connection_string; *p != '\0'; p++) {
+		if (*p == '#') {
+			*p = '\0';
+			*player = ++p;
+			while (IsValidChar(*p, CS_NUMERAL)) p++;
+			if (*p == '\0') break;
+		} else if (*p == ':') {
+			*port = p + 1;
+			*p = '\0';
+		}
+	}
+}
+
+// Creates a new client from a socket
+//   Used both by the server and the client
+static NetworkClientState *NetworkAllocClient(SOCKET s)
+{
+	NetworkClientState *cs;
+	byte client_no = 0;
+
+	if (_network_server) {
+		// Can we handle a new client?
+		if (_network_clients_connected >= MAX_CLIENTS) return NULL;
+		if (_network_game_info.clients_on >= _network_game_info.clients_max) return NULL;
+
+		// Register the login
+		client_no = _network_clients_connected++;
+	}
+
+	cs = DEREF_CLIENT(client_no);
+	memset(cs, 0, sizeof(*cs));
+	cs->socket = s;
+	cs->last_frame = 0;
+	cs->has_quit = false;
+
+	cs->last_frame = _frame_counter;
+	cs->last_frame_server = _frame_counter;
+
+	if (_network_server) {
+		NetworkClientInfo *ci = DEREF_CLIENT_INFO(cs);
+		memset(ci, 0, sizeof(*ci));
+
+		cs->index = _network_client_index++;
+		ci->client_index = cs->index;
+		ci->client_playas = PLAYER_INACTIVE_CLIENT;
+		ci->join_date = _date;
+
+		InvalidateWindow(WC_CLIENT_LIST, 0);
+	}
+
+	return cs;
+}
+
+// Close a connection
+void NetworkCloseClient(NetworkClientState *cs)
+{
+	NetworkClientInfo *ci;
+	// Socket is already dead
+	if (cs->socket == INVALID_SOCKET) {
+		cs->has_quit = true;
+		return;
+	}
+
+	DEBUG(net, 1, "Closed client connection %d", cs->index);
+
+	if (!cs->has_quit && _network_server && cs->status > STATUS_INACTIVE) {
+		// We did not receive a leave message from this client...
+		NetworkErrorCode errorno = NETWORK_ERROR_CONNECTION_LOST;
+		char str[100];
+		char client_name[NETWORK_CLIENT_NAME_LENGTH];
+		NetworkClientState *new_cs;
+
+		NetworkGetClientName(client_name, sizeof(client_name), cs);
+
+		GetNetworkErrorMsg(str, errorno, lastof(str));
+
+		NetworkTextMessage(NETWORK_ACTION_LEAVE, 1, false, client_name, "%s", str);
+
+		// Inform other clients of this... strange leaving ;)
+		FOR_ALL_CLIENTS(new_cs) {
+			if (new_cs->status > STATUS_AUTH && cs != new_cs) {
+				SEND_COMMAND(PACKET_SERVER_ERROR_QUIT)(new_cs, cs->index, errorno);
+			}
+		}
+	}
+
+	/* When the client was PRE_ACTIVE, the server was in pause mode, so unpause */
+	if (cs->status == STATUS_PRE_ACTIVE && _network_pause_on_join) {
+		DoCommandP(0, 0, 0, NULL, CMD_PAUSE);
+		NetworkServer_HandleChat(NETWORK_ACTION_SERVER_MESSAGE, DESTTYPE_BROADCAST, 0, "Game unpaused", NETWORK_SERVER_INDEX);
+	}
+
+	closesocket(cs->socket);
+	cs->writable = false;
+	cs->has_quit = true;
+
+	// Free all pending and partially received packets
+	while (cs->packet_queue != NULL) {
+		Packet *p = cs->packet_queue->next;
+		free(cs->packet_queue);
+		cs->packet_queue = p;
+	}
+	free(cs->packet_recv);
+	cs->packet_recv = NULL;
+
+	while (cs->command_queue != NULL) {
+		CommandPacket *p = cs->command_queue->next;
+		free(cs->command_queue);
+		cs->command_queue = p;
+	}
+
+	// Close the gap in the client-list
+	ci = DEREF_CLIENT_INFO(cs);
+
+	if (_network_server) {
+		// We just lost one client :(
+		if (cs->status > STATUS_INACTIVE) _network_game_info.clients_on--;
+		_network_clients_connected--;
+
+		while ((cs + 1) != DEREF_CLIENT(MAX_CLIENTS) && (cs + 1)->socket != INVALID_SOCKET) {
+			*cs = *(cs + 1);
+			*ci = *(ci + 1);
+			cs++;
+			ci++;
+		}
+
+		InvalidateWindow(WC_CLIENT_LIST, 0);
+	}
+
+	// Reset the status of the last socket
+	cs->socket = INVALID_SOCKET;
+	cs->status = STATUS_INACTIVE;
+	cs->index = NETWORK_EMPTY_INDEX;
+	ci->client_index = NETWORK_EMPTY_INDEX;
+
+	CheckMinPlayers();
+}
+
+// A client wants to connect to a server
+static bool NetworkConnect(const char *hostname, int port)
+{
+	SOCKET s;
+	struct sockaddr_in sin;
+
+	DEBUG(net, 1, "Connecting to %s %d", hostname, port);
+
+	s = socket(AF_INET, SOCK_STREAM, 0);
+	if (s == INVALID_SOCKET) {
+		ClientStartError("socket() failed");
+		return false;
+	}
+
+	if (!SetNoDelay(s)) DEBUG(net, 1, "Setting TCP_NODELAY failed");
+
+	sin.sin_family = AF_INET;
+	sin.sin_addr.s_addr = NetworkResolveHost(hostname);
+	sin.sin_port = htons(port);
+	_network_last_host_ip = sin.sin_addr.s_addr;
+
+	/* We failed to connect for which reason what so ever */
+	if (connect(s, (struct sockaddr*) &sin, sizeof(sin)) != 0) return false;
+
+	if (!SetNonBlocking(s)) DEBUG(net, 0, "Setting non-blocking mode failed"); // XXX should this be an error?
+
+	// in client mode, only the first client field is used. it's pointing to the server.
+	NetworkAllocClient(s);
+
+	_network_join_status = NETWORK_JOIN_STATUS_CONNECTING;
+	ShowJoinStatusWindow();
+
+	return true;
+}
+
+// For the server, to accept new clients
+static void NetworkAcceptClients(void)
+{
+	struct sockaddr_in sin;
+	NetworkClientState *cs;
+	uint i;
+	bool banned;
+
+	// Should never ever happen.. is it possible??
+	assert(_listensocket != INVALID_SOCKET);
+
+	for (;;) {
+		socklen_t sin_len = sizeof(sin);
+		SOCKET s = accept(_listensocket, (struct sockaddr*)&sin, &sin_len);
+		if (s == INVALID_SOCKET) return;
+
+		SetNonBlocking(s); // XXX error handling?
+
+		DEBUG(net, 1, "Client connected from %s on frame %d", inet_ntoa(sin.sin_addr), _frame_counter);
+
+		SetNoDelay(s); // XXX error handling?
+
+		/* Check if the client is banned */
+		banned = false;
+		for (i = 0; i < lengthof(_network_ban_list); i++) {
+			if (_network_ban_list[i] == NULL) continue;
+
+			if (sin.sin_addr.s_addr == inet_addr(_network_ban_list[i])) {
+				Packet *p = NetworkSend_Init(PACKET_SERVER_BANNED);
+
+				DEBUG(net, 1, "Banned ip tried to join (%s), refused", _network_ban_list[i]);
+
+				p->buffer[0] = p->size & 0xFF;
+				p->buffer[1] = p->size >> 8;
+
+				send(s, p->buffer, p->size, 0);
+				closesocket(s);
+
+				free(p);
+
+				banned = true;
+				break;
+			}
+		}
+		/* If this client is banned, continue with next client */
+		if (banned) continue;
+
+		cs = NetworkAllocClient(s);
+		if (cs == NULL) {
+			// no more clients allowed?
+			// Send to the client that we are full!
+			Packet *p = NetworkSend_Init(PACKET_SERVER_FULL);
+
+			p->buffer[0] = p->size & 0xFF;
+			p->buffer[1] = p->size >> 8;
+
+			send(s, p->buffer, p->size, 0);
+			closesocket(s);
+
+			free(p);
+
+			continue;
+		}
+
+		// a new client has connected. We set him at inactive for now
+		//  maybe he is only requesting server-info. Till he has sent a PACKET_CLIENT_MAP_OK
+		//  the client stays inactive
+		cs->status = STATUS_INACTIVE;
+
+		DEREF_CLIENT_INFO(cs)->client_ip = sin.sin_addr.s_addr; // Save the IP of the client
+	}
+}
+
+// Set up the listen socket for the server
+static bool NetworkListen(void)
+{
+	SOCKET ls;
+	struct sockaddr_in sin;
+
+	DEBUG(net, 1, "Listening on %s:%d", _network_server_bind_ip_host, _network_server_port);
+
+	ls = socket(AF_INET, SOCK_STREAM, 0);
+	if (ls == INVALID_SOCKET) {
+		ServerStartError("socket() on listen socket failed");
+		return false;
+	}
+
+	{ // reuse the socket
+		int reuse = 1;
+		// The (const char*) cast is needed for windows!!
+		if (setsockopt(ls, SOL_SOCKET, SO_REUSEADDR, (const char*)&reuse, sizeof(reuse)) == -1) {
+			ServerStartError("setsockopt() on listen socket failed");
+			return false;
+		}
+	}
+
+	if (!SetNonBlocking(ls)) DEBUG(net, 0, "Setting non-blocking mode failed"); // XXX should this be an error?
+
+	sin.sin_family = AF_INET;
+	sin.sin_addr.s_addr = _network_server_bind_ip;
+	sin.sin_port = htons(_network_server_port);
+
+	if (bind(ls, (struct sockaddr*)&sin, sizeof(sin)) != 0) {
+		ServerStartError("bind() failed");
+		return false;
+	}
+
+	if (listen(ls, 1) != 0) {
+		ServerStartError("listen() failed");
+		return false;
+	}
+
+	_listensocket = ls;
+
+	return true;
+}
+
+// Close all current connections
+static void NetworkClose(void)
+{
+	NetworkClientState *cs;
+
+	FOR_ALL_CLIENTS(cs) {
+		if (!_network_server) {
+			SEND_COMMAND(PACKET_CLIENT_QUIT)("leaving");
+			NetworkSend_Packets(cs);
+		}
+		NetworkCloseClient(cs);
+	}
+
+	if (_network_server) {
+		// We are a server, also close the listensocket
+		closesocket(_listensocket);
+		_listensocket = INVALID_SOCKET;
+		DEBUG(net, 1, "Closed listener");
+		NetworkUDPClose();
+	}
+}
+
+// Inits the network (cleans sockets and stuff)
+static void NetworkInitialize(void)
+{
+	NetworkClientState *cs;
+
+	_local_command_queue = NULL;
+
+	// Clean all client-sockets
+	memset(_clients, 0, sizeof(_clients));
+	for (cs = _clients; cs != &_clients[MAX_CLIENTS]; cs++) {
+		cs->socket = INVALID_SOCKET;
+		cs->status = STATUS_INACTIVE;
+		cs->command_queue = NULL;
+	}
+
+	// Clean the client_info memory
+	memset(&_network_client_info, 0, sizeof(_network_client_info));
+	memset(&_network_player_info, 0, sizeof(_network_player_info));
+
+	_sync_frame = 0;
+	_network_first_time = true;
+
+	_network_reconnect = 0;
+
+	NetworkUDPInitialize();
+}
+
+// Query a server to fetch his game-info
+//  If game_info is true, only the gameinfo is fetched,
+//   else only the client_info is fetched
+NetworkGameList *NetworkQueryServer(const char* host, unsigned short port, bool game_info)
+{
+	if (!_network_available) return NULL;
+
+	NetworkDisconnect();
+
+	if (game_info) return NetworkUDPQueryServer(host, port);
+
+	NetworkInitialize();
+
+	_network_server = false;
+
+	// Try to connect
+	_networking = NetworkConnect(host, port);
+
+	// We are connected
+	if (_networking) {
+		SEND_COMMAND(PACKET_CLIENT_COMPANY_INFO)();
+	} else { // No networking, close everything down again
+		NetworkDisconnect();
+	}
+
+	return NULL;
+}
+
+/* Validates an address entered as a string and adds the server to
+ * the list. If you use this function, the games will be marked
+ * as manually added. */
+void NetworkAddServer(const char *b)
+{
+	if (*b != '\0') {
+		NetworkGameList *item;
+		const char *port = NULL;
+		const char *player = NULL;
+		char host[NETWORK_HOSTNAME_LENGTH];
+		uint16 rport;
+
+		ttd_strlcpy(host, b, lengthof(host));
+
+		ttd_strlcpy(_network_default_ip, b, lengthof(_network_default_ip));
+		rport = NETWORK_DEFAULT_PORT;
+
+		ParseConnectionString(&player, &port, host);
+		if (port != NULL) rport = atoi(port);
+
+		item = NetworkQueryServer(host, rport, true);
+		item->manually = true;
+	}
+}
+
+/* Generates the list of manually added hosts from NetworkGameList and
+ * dumps them into the array _network_host_list. This array is needed
+ * by the function that generates the config file. */
+void NetworkRebuildHostList(void)
+{
+	uint i = 0;
+	const NetworkGameList *item = _network_game_list;
+	while (item != NULL && i != lengthof(_network_host_list)) {
+		if (item->manually) {
+			free(_network_host_list[i]);
+			_network_host_list[i++] = str_fmt("%s:%i", item->info.hostname, item->port);
+		}
+		item = item->next;
+	}
+
+	for (; i < lengthof(_network_host_list); i++) {
+		free(_network_host_list[i]);
+		_network_host_list[i] = NULL;
+	}
+}
+
+// Used by clients, to connect to a server
+bool NetworkClientConnectGame(const char *host, uint16 port)
+{
+	if (!_network_available) return false;
+
+	if (port == 0) return false;
+
+	ttd_strlcpy(_network_last_host, host, sizeof(_network_last_host));
+	_network_last_port = port;
+
+	NetworkDisconnect();
+	NetworkUDPClose();
+	NetworkInitialize();
+
+	// Try to connect
+	_networking = NetworkConnect(host, port);
+
+	// We are connected
+	if (_networking) {
+		IConsoleCmdExec("exec scripts/on_client.scr 0");
+		NetworkClient_Connected();
+	} else {
+		// Connecting failed
+		NetworkError(STR_NETWORK_ERR_NOCONNECTION);
+	}
+
+	return _networking;
+}
+
+static void NetworkInitGameInfo(void)
+{
+	NetworkClientInfo *ci;
+
+	ttd_strlcpy(_network_game_info.server_name, _network_server_name, sizeof(_network_game_info.server_name));
+	ttd_strlcpy(_network_game_info.server_password, _network_server_password, sizeof(_network_server_password));
+	ttd_strlcpy(_network_game_info.rcon_password, _network_rcon_password, sizeof(_network_rcon_password));
+	if (_network_game_info.server_name[0] == '\0')
+		snprintf(_network_game_info.server_name, sizeof(_network_game_info.server_name), "Unnamed Server");
+
+	ttd_strlcpy(_network_game_info.server_revision, _openttd_revision, sizeof(_network_game_info.server_revision));
+
+	// The server is a client too ;)
+	if (_network_dedicated) {
+		_network_game_info.clients_on = 0;
+		_network_game_info.companies_on = 0;
+		_network_game_info.dedicated = true;
+	} else {
+		_network_game_info.clients_on = 1;
+		_network_game_info.companies_on = 1;
+		_network_game_info.dedicated = false;
+	}
+
+	_network_game_info.spectators_on = 0;
+
+	_network_game_info.game_date = _date;
+	_network_game_info.start_date = ConvertYMDToDate(_patches.starting_year, 0, 1);
+	_network_game_info.map_width = MapSizeX();
+	_network_game_info.map_height = MapSizeY();
+	_network_game_info.map_set = _opt.landscape;
+
+	_network_game_info.use_password = (_network_server_password[0] != '\0');
+
+	// We use _network_client_info[MAX_CLIENT_INFO - 1] to store the server-data in it
+	//  The index is NETWORK_SERVER_INDEX ( = 1)
+	ci = &_network_client_info[MAX_CLIENT_INFO - 1];
+	memset(ci, 0, sizeof(*ci));
+
+	ci->client_index = NETWORK_SERVER_INDEX;
+	ci->client_playas = _network_dedicated ? PLAYER_SPECTATOR : _local_player;
+
+	ttd_strlcpy(ci->client_name, _network_player_name, sizeof(ci->client_name));
+	ttd_strlcpy(ci->unique_id, _network_unique_id, sizeof(ci->unique_id));
+}
+
+bool NetworkServerStart(void)
+{
+	if (!_network_available) return false;
+
+	/* Call the pre-scripts */
+	IConsoleCmdExec("exec scripts/pre_server.scr 0");
+	if (_network_dedicated) IConsoleCmdExec("exec scripts/pre_dedicated.scr 0");
+
+	NetworkInitialize();
+	if (!NetworkListen()) return false;
+
+	// Try to start UDP-server
+	_network_udp_server = true;
+	_network_udp_server = NetworkUDPListen(&_udp_server_socket, _network_server_bind_ip, _network_server_port, false);
+
+	_network_server = true;
+	_networking = true;
+	_frame_counter = 0;
+	_frame_counter_server = 0;
+	_frame_counter_max = 0;
+	_last_sync_frame = 0;
+	_network_own_client_index = NETWORK_SERVER_INDEX;
+
+	/* Non-dedicated server will always be player #1 */
+	if (!_network_dedicated) _network_playas = 0;
+
+	_network_clients_connected = 0;
+
+	NetworkInitGameInfo();
+
+	// execute server initialization script
+	IConsoleCmdExec("exec scripts/on_server.scr 0");
+	// if the server is dedicated ... add some other script
+	if (_network_dedicated) IConsoleCmdExec("exec scripts/on_dedicated.scr 0");
+
+	_min_players_paused = false;
+	CheckMinPlayers();
+
+	/* Try to register us to the master server */
+	_network_last_advertise_frame = 0;
+	_network_need_advertise = true;
+	NetworkUDPAdvertise();
+	return true;
+}
+
+// The server is rebooting...
+// The only difference with NetworkDisconnect, is the packets that is sent
+void NetworkReboot(void)
+{
+	if (_network_server) {
+		NetworkClientState *cs;
+		FOR_ALL_CLIENTS(cs) {
+			SEND_COMMAND(PACKET_SERVER_NEWGAME)(cs);
+			NetworkSend_Packets(cs);
+		}
+	}
+
+	NetworkClose();
+
+	// Free all queued commands
+	while (_local_command_queue != NULL) {
+		CommandPacket *p = _local_command_queue;
+		_local_command_queue = _local_command_queue->next;
+		free(p);
+	}
+
+	_networking = false;
+	_network_server = false;
+}
+
+// We want to disconnect from the host/clients
+void NetworkDisconnect(void)
+{
+	if (_network_server) {
+		NetworkClientState *cs;
+		FOR_ALL_CLIENTS(cs) {
+			SEND_COMMAND(PACKET_SERVER_SHUTDOWN)(cs);
+			NetworkSend_Packets(cs);
+		}
+	}
+
+	if (_network_advertise) NetworkUDPRemoveAdvertise();
+
+	DeleteWindowById(WC_NETWORK_STATUS_WINDOW, 0);
+
+	NetworkClose();
+
+	// Free all queued commands
+	while (_local_command_queue != NULL) {
+		CommandPacket *p = _local_command_queue;
+		_local_command_queue = _local_command_queue->next;
+		free(p);
+	}
+
+	_networking = false;
+	_network_server = false;
+}
+
+// Receives something from the network
+static bool NetworkReceive(void)
+{
+	NetworkClientState *cs;
+	int n;
+	fd_set read_fd, write_fd;
+	struct timeval tv;
+
+	FD_ZERO(&read_fd);
+	FD_ZERO(&write_fd);
+
+	FOR_ALL_CLIENTS(cs) {
+		FD_SET(cs->socket, &read_fd);
+		FD_SET(cs->socket, &write_fd);
+	}
+
+	// take care of listener port
+	if (_network_server) FD_SET(_listensocket, &read_fd);
+
+	tv.tv_sec = tv.tv_usec = 0; // don't block at all.
+#if !defined(__MORPHOS__) && !defined(__AMIGA__)
+	n = select(FD_SETSIZE, &read_fd, &write_fd, NULL, &tv);
+#else
+	n = WaitSelect(FD_SETSIZE, &read_fd, &write_fd, NULL, &tv, NULL);
+#endif
+	if (n == -1 && !_network_server) NetworkError(STR_NETWORK_ERR_LOSTCONNECTION);
+
+	// accept clients..
+	if (_network_server && FD_ISSET(_listensocket, &read_fd)) NetworkAcceptClients();
+
+	// read stuff from clients
+	FOR_ALL_CLIENTS(cs) {
+		cs->writable = !!FD_ISSET(cs->socket, &write_fd);
+		if (FD_ISSET(cs->socket, &read_fd)) {
+			if (_network_server) {
+				NetworkServer_ReadPackets(cs);
+			} else {
+				NetworkRecvStatus res;
+
+				// The client already was quiting!
+				if (cs->has_quit) return false;
+
+				res = NetworkClient_ReadPackets(cs);
+				if (res != NETWORK_RECV_STATUS_OKAY) {
+					// The client made an error of which we can not recover
+					//   close the client and drop back to main menu
+					NetworkClientError(res, cs);
+					return false;
+				}
+			}
+		}
+	}
+	return true;
+}
+
+// This sends all buffered commands (if possible)
+static void NetworkSend(void)
+{
+	NetworkClientState *cs;
+	FOR_ALL_CLIENTS(cs) {
+		if (cs->writable) {
+			NetworkSend_Packets(cs);
+
+			if (cs->status == STATUS_MAP) {
+				// This client is in the middle of a map-send, call the function for that
+				SEND_COMMAND(PACKET_SERVER_MAP)(cs);
+			}
+		}
+	}
+}
+
+// Handle the local-command-queue
+static void NetworkHandleLocalQueue(void)
+{
+	CommandPacket *cp, **cp_prev;
+
+	cp_prev = &_local_command_queue;
+
+	while ( (cp = *cp_prev) != NULL) {
+
+		// The queue is always in order, which means
+		// that the first element will be executed first.
+		if (_frame_counter < cp->frame) break;
+
+		if (_frame_counter > cp->frame) {
+			// If we reach here, it means for whatever reason, we've already executed
+			// past the command we need to execute.
+			DEBUG(net, 0, "Trying to execute a packet in the past!");
+			assert(0);
+		}
+
+		// We can execute this command
+		NetworkExecuteCommand(cp);
+
+		*cp_prev = cp->next;
+		free(cp);
+	}
+
+	// Just a safety check, to be removed in the future.
+	// Make sure that no older command appears towards the end of the queue
+	// In that case we missed executing it. This will never happen.
+	for (cp = _local_command_queue; cp; cp = cp->next) {
+		assert(_frame_counter < cp->frame);
+	}
+
+}
+
+static bool NetworkDoClientLoop(void)
+{
+	_frame_counter++;
+
+	NetworkHandleLocalQueue();
+
+	StateGameLoop();
+
+	// Check if we are in sync!
+	if (_sync_frame != 0) {
+		if (_sync_frame == _frame_counter) {
+#ifdef NETWORK_SEND_DOUBLE_SEED
+			if (_sync_seed_1 != _random_seeds[0][0] || _sync_seed_2 != _random_seeds[0][1]) {
+#else
+			if (_sync_seed_1 != _random_seeds[0][0]) {
+#endif
+				NetworkError(STR_NETWORK_ERR_DESYNC);
+				DEBUG(net, 0, "Sync error detected!");
+				NetworkClientError(NETWORK_RECV_STATUS_DESYNC, DEREF_CLIENT(0));
+				return false;
+			}
+
+			// If this is the first time we have a sync-frame, we
+			//   need to let the server know that we are ready and at the same
+			//   frame as he is.. so we can start playing!
+			if (_network_first_time) {
+				_network_first_time = false;
+				SEND_COMMAND(PACKET_CLIENT_ACK)();
+			}
+
+			_sync_frame = 0;
+		} else if (_sync_frame < _frame_counter) {
+			DEBUG(net, 1, "Missed frame for sync-test (%d / %d)", _sync_frame, _frame_counter);
+			_sync_frame = 0;
+		}
+	}
+
+	return true;
+}
+
+// We have to do some UDP checking
+void NetworkUDPGameLoop(void)
+{
+	if (_network_udp_server) {
+		NetworkUDPReceive(_udp_server_socket);
+		if (_udp_master_socket != INVALID_SOCKET) {
+			NetworkUDPReceive(_udp_master_socket);
+		}
+	} else if (_udp_client_socket != INVALID_SOCKET) {
+		NetworkUDPReceive(_udp_client_socket);
+		if (_network_udp_broadcast > 0) _network_udp_broadcast--;
+	}
+}
+
+// The main loop called from ttd.c
+//  Here we also have to do StateGameLoop if needed!
+void NetworkGameLoop(void)
+{
+	if (!_networking) return;
+
+	if (!NetworkReceive()) return;
+
+	if (_network_server) {
+		bool send_frame = false;
+
+		// We first increase the _frame_counter
+		_frame_counter++;
+		// Update max-frame-counter
+		if (_frame_counter > _frame_counter_max) {
+			_frame_counter_max = _frame_counter + _network_frame_freq;
+			send_frame = true;
+		}
+
+		NetworkHandleLocalQueue();
+
+		// Then we make the frame
+		StateGameLoop();
+
+		_sync_seed_1 = _random_seeds[0][0];
+#ifdef NETWORK_SEND_DOUBLE_SEED
+		_sync_seed_2 = _random_seeds[0][1];
+#endif
+
+		NetworkServer_Tick(send_frame);
+	} else {
+		// Client
+
+		// Make sure we are at the frame were the server is (quick-frames)
+		if (_frame_counter_server > _frame_counter) {
+			while (_frame_counter_server > _frame_counter) {
+				if (!NetworkDoClientLoop()) break;
+			}
+		} else {
+			// Else, keep on going till _frame_counter_max
+			if (_frame_counter_max > _frame_counter) NetworkDoClientLoop();
+		}
+	}
+
+	NetworkSend();
+}
+
+static void NetworkGenerateUniqueId(void)
+{
+	md5_state_t state;
+	md5_byte_t digest[16];
+	char hex_output[16*2 + 1];
+	char coding_string[NETWORK_NAME_LENGTH];
+	int di;
+
+	snprintf(coding_string, sizeof(coding_string), "%d%s", (uint)Random(), "OpenTTD Unique ID");
+
+	/* Generate the MD5 hash */
+	md5_init(&state);
+	md5_append(&state, (const md5_byte_t*)coding_string, strlen(coding_string));
+	md5_finish(&state, digest);
+
+	for (di = 0; di < 16; ++di)
+		sprintf(hex_output + di * 2, "%02x", digest[di]);
+
+	/* _network_unique_id is our id */
+	snprintf(_network_unique_id, sizeof(_network_unique_id), "%s", hex_output);
+}
+
+// This tries to launch the network for a given OS
+void NetworkStartUp(void)
+{
+	DEBUG(net, 3, "[core] starting network...");
+
+#if defined(__MORPHOS__) || defined(__AMIGA__)
+	/*
+	 *  IMPORTANT NOTE: SocketBase needs to be initialized before we use _any_
+	 *  network related function, else: crash.
+	 */
+	DEBUG(net, 3, "[core] loading bsd socket library");
+	SocketBase = OpenLibrary("bsdsocket.library", 4);
+	if (SocketBase == NULL) {
+		DEBUG(net, 0, "[core] can't open bsdsocket.library version 4, network unavailable");
+		_network_available = false;
+		return;
+	}
+
+#if defined(__AMIGA__)
+	// for usleep() implementation (only required for legacy AmigaOS builds)
+	TimerPort = CreateMsgPort();
+	if (TimerPort != NULL) {
+		TimerRequest = (struct timerequest*)CreateIORequest(TimerPort, sizeof(struct timerequest);
+		if (TimerRequest != NULL) {
+			if (OpenDevice("timer.device", UNIT_MICROHZ, (struct IORequest*)TimerRequest, 0) == 0) {
+				TimerBase = TimerRequest->tr_node.io_Device;
+				if (TimerBase == NULL) {
+					// free ressources...
+					DEBUG(net, 0, "[core] can't initialize timer, network unavailable");
+					_network_available = false;
+					return;
+				}
+			}
+		}
+	}
+#endif // __AMIGA__
+#endif // __MORPHOS__ / __AMIGA__
+
+	// Network is available
+	_network_available = true;
+	_network_dedicated = false;
+	_network_last_advertise_frame = 0;
+	_network_need_advertise = true;
+	_network_advertise_retries = 0;
+
+	/* Load the ip from the openttd.cfg */
+	_network_server_bind_ip = inet_addr(_network_server_bind_ip_host);
+	/* And put the data back in it in case it was an invalid ip */
+	snprintf(_network_server_bind_ip_host, sizeof(_network_server_bind_ip_host), "%s", inet_ntoa(*(struct in_addr *)&_network_server_bind_ip));
+
+	/* Generate an unique id when there is none yet */
+	if (_network_unique_id[0] == '\0') NetworkGenerateUniqueId();
+
+	{
+		byte cl_max = _network_game_info.clients_max;
+		byte cp_max = _network_game_info.companies_max;
+		byte sp_max = _network_game_info.spectators_max;
+
+		memset(&_network_game_info, 0, sizeof(_network_game_info));
+		_network_game_info.clients_max = cl_max;
+		_network_game_info.companies_max = cp_max;
+		_network_game_info.spectators_max = sp_max;
+	}
+
+	// Let's load the network in windows
+	#if defined(WIN32)
+	{
+		WSADATA wsa;
+		DEBUG(net, 3, "[core] loading windows socket library");
+		if (WSAStartup(MAKEWORD(2,0), &wsa) != 0) {
+			DEBUG(net, 0, "[core] WSAStartup failed, network unavailable");
+			_network_available = false;
+			return;
+		}
+	}
+	#endif // WIN32
+
+	NetworkInitialize();
+	DEBUG(net, 3, "[core] network online, multiplayer available");
+	NetworkFindIPs();
+}
+
+// This shuts the network down
+void NetworkShutDown(void)
+{
+	NetworkDisconnect();
+	NetworkUDPClose();
+
+	DEBUG(net, 3, "[core] shutting down network");
+
+	_network_available = false;
+
+#if defined(__MORPHOS__) || defined(__AMIGA__)
+	// free allocated ressources
+#if defined(__AMIGA__)
+	if (TimerBase    != NULL) CloseDevice((struct IORequest*)TimerRequest); // XXX This smells wrong
+	if (TimerRequest != NULL) DeleteIORequest(TimerRequest);
+	if (TimerPort    != NULL) DeleteMsgPort(TimerPort);
+#endif
+
+	if (SocketBase != NULL) CloseLibrary(SocketBase);
+#endif
+
+#if defined(WIN32)
+	WSACleanup();
+#endif
+}
+
+#endif /* ENABLE_NETWORK */