Add WIP Java language bindings

src/bindings/java/ZeroTierSocketAddress.java

@@ -0,0 +1,124 @@
+/*
+ * Copyright (c)2013-2021 ZeroTier, Inc.
+ *
+ * Use of this software is governed by the Business Source License included
+ * in the LICENSE.TXT file in the project's root directory.
+ *
+ * Change Date: 2026-01-01
+ *
+ * On the date above, in accordance with the Business Source License, use
+ * of this software will be governed by version 2.0 of the Apache License.
+ */
+/****/
+
+package com.zerotier.sdk;
+
+import com.zerotier.sdk.ZeroTierNative;
+import java.net.InetAddress;
+
+/**
+ * Convenience class for holding address information. Used internally by JNI layer.
+ */
+class ZeroTierSocketAddress {
+    private byte[] _ip6 = new byte[16];
+    private byte[] _ip4 = new byte[4];
+
+    private int _family;
+    private int _port;   // Also reused for netmask or prefix
+
+    public ZeroTierSocketAddress()
+    {
+    }
+
+    /**
+     * Constructor
+     */
+    public ZeroTierSocketAddress(String ipStr, int port)
+    {
+        if (ipStr.contains(":")) {
+            _family = ZeroTierNative.ZTS_AF_INET6;
+            try {
+                InetAddress ip = InetAddress.getByName(ipStr);
+                _ip6 = ip.getAddress();
+            }
+            catch (Exception e) {
+            }
+        }
+        else if (ipStr.contains(".")) {
+            _family = ZeroTierNative.ZTS_AF_INET;
+            try {
+                InetAddress ip = InetAddress.getByName(ipStr);
+                _ip4 = ip.getAddress();
+            }
+            catch (Exception e) {
+            }
+        }
+        _port = port;
+    }
+
+    /**
+     * Convert to string (ip portion only)
+     */
+    public String ipString()
+    {
+        if (_family == ZeroTierNative.ZTS_AF_INET) {
+            try {
+                InetAddress inet = InetAddress.getByAddress(_ip4);
+                return "" + inet.getHostAddress();
+            }
+            catch (Exception e) {
+                System.out.println(e);
+            }
+        }
+        if (_family == ZeroTierNative.ZTS_AF_INET6) {
+            try {
+                InetAddress inet = InetAddress.getByAddress(_ip6);
+                return "" + inet.getHostAddress();
+            }
+            catch (Exception e) {
+                System.out.println(e);
+            }
+        }
+        return "";
+    }
+
+    /**
+     * Convert to string (ip and port)
+     */
+    public String toString()
+    {
+        return ipString() + ":" + _port;
+    }
+
+    /**
+     * Convert to string (ip+netmask and port)
+     */
+    public String toCIDR()
+    {
+        return ipString() + "/" + _port;
+    }
+
+    /**
+     * Get port
+     */
+    public int getPort()
+    {
+        return _port;
+    }
+
+    /**
+     * Get netmask
+     */
+    public int getNetmask()
+    {
+        return _port;
+    }
+
+    /**
+     * Get prefix (stored in port)
+     */
+    public int getPrefix()
+    {
+        return _port;
+    }
+}