c# - WinRT 中的 IPAddress.HostToNetworkOrder() 等价物？

Question

IPAddress 类似乎不存在于 WinRT API 中。是否有等效于 IPAddress.HostToNetworkOrder() 的方法可用于将 int 从主机顺序转换为网络顺序(从 Little Endian 到 Big Endian)？

Answer 1

在许多情况下(当然不是所有情况)您可以为此使用DataReader 和DataWriter:

DataReader reader = new DataReader(stream.AsInputStream());
reader.ByteOrder = ByteOrder.BigEndian;  // standard network byte order
reader.ReadInt16();

出于兼容性原因，我使用了反射器:

    public static short HostToNetworkOrder(short host)
    {
        return (short)(((host & 0xff) << 8) | ((host >> 8) & 0xff));
    }

    public static int HostToNetworkOrder(int host)
    {
        return (((HostToNetworkOrder((short)host) & 0xffff) << 0x10) | (HostToNetworkOrder((short)(host >> 0x10)) & 0xffff));
    }

    public static long HostToNetworkOrder(long host)
    {
        return (long)(((HostToNetworkOrder((int)host) & 0xffffffffL) << 0x20) | (HostToNetworkOrder((int)(host >> 0x20)) & 0xffffffffL));
    }

    public static short NetworkToHostOrder(short network)
    {
        return HostToNetworkOrder(network);
    }

    public static int NetworkToHostOrder(int network)
    {
        return HostToNetworkOrder(network);
    }

    public static long NetworkToHostOrder(long network)
    {
        return HostToNetworkOrder(network);
    }