Method ConnectToServer

PanzerChasm/net/net.cpp:638–812

}

IConnectionPtr Net::ConnectToServer(
	const InetAddress& address,
	const uint16_t in_udp_port,
	const uint16_t in_tcp_port )
{
#ifdef _WIN32
	// Create and open TCP socket.
	const SOCKET tcp_socket= ::socket( AF_INET, SOCK_STREAM, 0 );
	if( tcp_socket == INVALID_SOCKET )
	{
		Log::Warning( FUNC_NAME, " can not create tcp socket. Error code: ", ::WSAGetLastError() );
		return nullptr;
	}

	sockaddr_in tcp_address;
	tcp_address.sin_family= AF_INET;
	tcp_address.sin_addr.s_addr= INADDR_ANY;
	tcp_address.sin_port= ::htons( in_tcp_port );
	if( ::bind( tcp_socket, (sockaddr*) &tcp_address, sizeof(tcp_address) ) != 0 )
	{
		Log::Warning( FUNC_NAME, " can not bind tcp socket. Error code: ", ::WSAGetLastError() );
		::closesocket( tcp_socket );
		return nullptr;
	}

	// Createe and open UDP socket.
	const SOCKET udp_socket= ::socket( AF_INET, SOCK_DGRAM, 0 );
	if( udp_socket == INVALID_SOCKET )
	{
		Log::Warning( FUNC_NAME, " can not create udp socket. Error code: ", ::WSAGetLastError() );
		::closesocket( tcp_socket );
		return nullptr;
	}

	sockaddr_in udp_address;
	udp_address.sin_family= AF_INET;
	udp_address.sin_addr.s_addr= INADDR_ANY;
	udp_address.sin_port= ::htons( in_udp_port );
	if( ::bind( udp_socket, (sockaddr*) &udp_address, sizeof(udp_address) ) != 0 )
	{
		Log::Warning( FUNC_NAME, " can not bind udp socket. Error code: ", ::WSAGetLastError() );
		::closesocket( tcp_socket );
		::closesocket( udp_socket );
		return nullptr;
	}

	// Connect to server.
	sockaddr_in server_tcp_address;
	std::memset( &server_tcp_address, 0, sizeof(server_tcp_address) );
	server_tcp_address.sin_family= AF_INET;
	server_tcp_address.sin_addr.s_addr= ::htonl( address.ip_address );
	server_tcp_address.sin_port= ::htons( address.port );

	const int connection_result= ::connect( tcp_socket, (sockaddr*) &server_tcp_address, sizeof(server_tcp_address) );
	if( connection_result == SOCKET_ERROR )
	{
		Log::Warning( FUNC_NAME, " can not connect to server. Error code: ", ::WSAGetLastError() );
		::closesocket( tcp_socket );