SocketExtensions.cs

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using System.Net;
using System.Net.Sockets;
 
namespace Tgstation.Server.Host.Extensions
{
    static class SocketExtensions
    {
        public static void BindTest(ushort port, bool includeIPv6)
        {
            using var socket = new Socket(
                includeIPv6
                    ? AddressFamily.InterNetworkV6
                    : AddressFamily.InterNetwork,
                SocketType.Stream,
                ProtocolType.Tcp);
            socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ExclusiveAddressUse, true);
            socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, false);
            if (includeIPv6)
                socket.DualMode = true;
 
            socket.Bind(
                new IPEndPoint(
                    includeIPv6
                        ? IPAddress.IPv6Any
                        : IPAddress.Any,
                    port));
        }
    }
}