Update InternetAddress

runtime/bin/socket_patch.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 patch class RawServerSocket {
   /* patch */ static Future<RawServerSocket> bind(address,
                                                   int port,
                                                   {int backlog: 0,
                                                    bool v6Only: false}) {
     return _RawServerSocket.bind(address, port, backlog, v6Only);
@@ skipping 88 matching lines @@
         return _sockaddr_storage[_IPV4_ADDR_OFFSET] == 169 &&
             _sockaddr_storage[_IPV4_ADDR_OFFSET + 1] == 254;
 
       case InternetAddressType.IP_V6:
         // Checking for fe80::/10.
         return _sockaddr_storage[_IPV6_ADDR_OFFSET] == 0xFE &&
             (_sockaddr_storage[_IPV6_ADDR_OFFSET + 1] & 0xB0) == 0x80;
     }
   }
 
+  bool get isMulticast {
+    switch (type) {
+      case InternetAddressType.IP_V4:
+        // Checking for 224.0.0.0 through 239.255.255.255.
+        return _sockaddr_storage[_IPV4_ADDR_OFFSET] >= 224 &&
+            _sockaddr_storage[_IPV4_ADDR_OFFSET] < 240;
+
+      case InternetAddressType.IP_V6:
+        // Checking for ff00::/8.
+        return _sockaddr_storage[_IPV6_ADDR_OFFSET] == 0xFF;
+    }
+  }
+
   Future<InternetAddress> reverse() => _NativeSocket.reverseLookup(this);
 
   _InternetAddress(InternetAddressType this.type,
                    String this.address,
                    String this._host,
                    List<int> this._sockaddr_storage);
 
+  factory _InternetAddress.parse(String address) {
+    var type = address.indexOf(':') == -1
+        ? InternetAddressType.IP_V4
+        : InternetAddressType.IP_V6;
+    var raw = _parse(type._value, address);
+    if (raw == null) {
+      throw new ArgumentError("Invalid internet address $address");
+    }
+    return new _InternetAddress(type, address, null, raw);
+  }
+
   factory _InternetAddress.fixed(int id) {
     var sockaddr = _fixed(id);
     switch (id) {
       case _ADDRESS_LOOPBACK_IP_V4:
         return new _InternetAddress(
             InternetAddressType.IP_V4, "127.0.0.1", null, sockaddr);
       case _ADDRESS_LOOPBACK_IP_V6:
         return new _InternetAddress(
             InternetAddressType.IP_V6, "::1", null, sockaddr);
       case _ADDRESS_ANY_IP_V4:
         return new _InternetAddress(
             InternetAddressType.IP_V4, "0.0.0.0", "0.0.0.0", sockaddr);
       case _ADDRESS_ANY_IP_V6:
         return new _InternetAddress(
             InternetAddressType.IP_V6, "::", "::", sockaddr);
       default:
         assert(false);
         throw new ArgumentError();
     }
   }
 
   // Create a clone of this _InternetAddress replacing the host.
   _InternetAddress _cloneWithNewHost(String host) {
     return new _InternetAddress(
         type, address, host, new Uint8List.fromList(_sockaddr_storage));
   }
 
+  bool operator ==(other) {
+    if (!(other is _InternetAddress)) return false;
+    if (other.type != type) return false;
+    bool equals = true;
+    for (int i = 0; i < _sockaddr_storage.length && equals; i++) {
+      equals = other._sockaddr_storage[i] == _sockaddr_storage[i];
+    }
+    return equals;
+  }
+
+  int get hashCode {
+    int result = 1;
+    for (int i = 0; i < _sockaddr_storage.length; i++) {
+      result = (result * 31 + _sockaddr_storage[i]) & 0x3FFFFFFF;
+    }
+    return result;
+  }
+
   String toString() {
     return "InternetAddress('$address', ${type.name})";
   }
 
   static Uint8List _fixed(int id) native "InternetAddress_Fixed";
+  static Uint8List _parse(int type, String address)
+      native "InternetAddress_Parse";
 }
 
 class _NetworkInterface implements NetworkInterface {
   final String name;
   final List<InternetAddress> addresses;
 
   _NetworkInterface(String this.name, List<InternetAddress> this.addresses);
 
   String toString() {
     return "NetworkInterface('$name', $addresses)";
@@ skipping 1062 matching lines @@
     if (_detachReady != null) {
       _detachReady.complete(null);
     } else {
       if (_raw != null) {
         _raw.shutdown(SocketDirection.SEND);
         _disableWriteEvent();
       }
     }
   }
 }