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integrations/unity3d/Assets/ZeroTierUtils.cs

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+using UnityEngine;
+using System.Collections;
+using System.Net;
+using System;
+using System.Globalization;
+using System.Runtime.InteropServices;
+
+public class ZeroTierUtils {
+
+	// Handles IPv4 and IPv6 notation.
+	public static IPEndPoint CreateIPEndPoint(string endPoint)
+	{
+		string[] ep = endPoint.Split(':');
+		if (ep.Length < 2) throw new FormatException("Invalid endpoint format");
+		IPAddress ip;
+		if (ep.Length > 2) {
+			if (!IPAddress.TryParse(string.Join(":", ep, 0, ep.Length - 1), out ip)) {
+				throw new FormatException("Invalid ip-adress");
+			}
+		}
+		else {
+			if (!IPAddress.TryParse(ep[0], out ip)) {
+				throw new FormatException("Invalid ip-adress");
+			}
+		}
+		int port;
+		if (!int.TryParse(ep[ep.Length - 1], NumberStyles.None, NumberFormatInfo.CurrentInfo, out port)) {
+			throw new FormatException("Invalid port");
+		}
+		return new IPEndPoint(ip, port);
+	}
+
+	// Generates an unmanaged sockaddr structure from a string-formatted endpoint
+	public static GCHandle Generate_unmananged_sockaddr(string endpoint_str)
+	{
+		IPEndPoint ipEndPoint;
+		ipEndPoint = ZeroTierUtils.CreateIPEndPoint (endpoint_str);
+		SocketAddress socketAddress = ipEndPoint.Serialize ();
+
+		// use an array of bytes instead of the sockaddr structure 
+		byte[] sockAddrStructureBytes = new byte[socketAddress.Size];
+		GCHandle sockAddrHandle = GCHandle.Alloc (sockAddrStructureBytes, GCHandleType.Pinned);
+		for (int i = 0; i < socketAddress.Size; ++i) {
+			sockAddrStructureBytes [i] = socketAddress [i];
+		}
+		return sockAddrHandle;
+	}
+
+	public static GCHandle Generate_unmanaged_buffer(byte[] buf)
+	{
+		// use an array of bytes instead of the sockaddr structure 
+		GCHandle sockAddrHandle = GCHandle.Alloc (buf, GCHandleType.Pinned);
+		return sockAddrHandle;
+	}
+}