/// <summary>
    /// Structure used in getaddrinfo() call
    /// </summary>
    /// <remarks></remarks>
    [System.Runtime.InteropServices.StructLayoutAttribute(System.Runtime.InteropServices.LayoutKind.Sequential)]
    public unsafe struct addrinfo
    {
        public int ai_flags;
        public int ai_family;
        public int ai_socktype;
        public int ai_protocol;
        public uint ai_addrlen;
        [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPStr)]
        public string ai_canonname;
        public sockaddr* ai_addr; //ERROR
        public addrinfo* ai_next; //ERROR
    }

//Example from C# language specification:
    public unsafe struct Node
    {
        public int Value;
        public Node* Left;
        public Node* Right;
    }

//Y U NO WORK?