1 files changed, 131 insertions, 0 deletions
diff --git a/libjava/classpath/vm/reference/java/net/VMNetworkInterface.java b/libjava/classpath/vm/reference/java/net/VMNetworkInterface.java
new file mode 100644
index 000000000..fca0c525a
--- /dev/null
+++ b/libjava/classpath/vm/reference/java/net/VMNetworkInterface.java
@@ -0,0 +1,131 @@
+/* VMNetworkInterface.java --
+   Copyright (C) 2005, 2008  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package java.net;
+
+import gnu.classpath.Configuration;
+
+import java.nio.ByteBuffer;
+import java.util.HashSet;
+import java.util.Set;
+
+/**
+ * This class models a network interface on the host computer.  A network
+ * interface contains a name (typically associated with a specific
+ * hardware adapter) and a list of addresses that are bound to it.
+ * For example, an ethernet interface may be named "eth0" and have the
+ * address 192.168.1.101 assigned to it.
+ *
+ * @author Michael Koch (konqueror@gmx.de)
+ * @since 1.4
+ */
+final class VMNetworkInterface
+{
+  String name;
+  Set addresses;
+
+  VMNetworkInterface(String name)
+  {
+    this.name = name;
+    addresses = new HashSet();
+  }
+
+  /**
+   * Creates a dummy instance which represents any network
+   * interface.
+   */
+  public VMNetworkInterface()
+  {
+    addresses = new HashSet();
+    try
+      {
+        addresses.add(InetAddress.getByName("0.0.0.0"));
+      }
+    catch (UnknownHostException _)
+      {
+        // Cannot happen.
+      }
+  }
+
+  static
+  {
+    if (Configuration.INIT_LOAD_LIBRARY)
+      System.loadLibrary("javanet");
+
+    initIds();
+  }
+
+  private static native void initIds();
+
+  /**
+   * Return a list of VM network interface objects.
+   *
+   * @return The list of network interfaces.
+   * @throws SocketException
+   */
+  public static native VMNetworkInterface[] getVMInterfaces()
+    throws SocketException;
+
+  private void addAddress(ByteBuffer addr)
+    throws SocketException, UnknownHostException
+  {
+    if (addr.remaining() == 4)
+      {
+        byte[] ipv4 = new byte[4];
+        addr.get(ipv4);
+        addresses.add(Inet4Address.getByAddress(ipv4));
+      }
+    else if (addr.remaining() == 16)
+      {
+        byte[] ipv6 = new byte[16];
+        addr.get(ipv6);
+        addresses.add(Inet6Address.getByAddress(ipv6));
+      }
+    else
+      throw new SocketException("invalid interface address");
+  }
+
+  static native boolean isUp(String name) throws SocketException;
+
+  static native boolean isLoopback(String name) throws SocketException;
+
+  static native boolean isPointToPoint(String name) throws SocketException;
+
+  static native boolean supportsMulticast(String name) throws SocketException;
+
+}