--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/components/visual-panels/core/src/java/util/com/oracle/solaris/vp/util/misc/NetUtil.java	Thu May 24 04:16:47 2012 -0400
@@ -0,0 +1,129 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved.
+ */
+
+package com.oracle.solaris.vp.util.misc;
+
+import java.net.*;
+import java.security.*;
+import java.util.Enumeration;
+
+public class NetUtil {
+    public static InetAddress[] getAllByName(final String host)
+	throws UnknownHostException {
+
+	final UnknownHostException[] uhe = new UnknownHostException[1];
+
+	InetAddress[] addrs = AccessController.doPrivileged(
+	    new PrivilegedAction<InetAddress[]>() {
+		@Override
+		public InetAddress[] run() {
+		    try {
+			return InetAddress.getAllByName(host);
+		    } catch (UnknownHostException e) {
+			uhe[0] = e;
+			return null;
+		    }
+		}
+	    });
+
+	if (uhe[0] != null) {
+	    throw uhe[0];
+	}
+
+	return addrs;
+    }
+
+    /**
+     * Gets the name of the local host.
+     *
+     * @return	    the hostname, or {@code null} if no IP address for the host
+     *		    could be found.
+     */
+    public static String getHostName() {
+	return AccessController.doPrivileged(
+	    new PrivilegedAction<String>() {
+		@Override
+		public String run() {
+		    try {
+			return InetAddress.getLocalHost().getHostName();
+		    } catch (UnknownHostException e) {
+		    }
+		    return null;
+		}
+	    });
+    }
+
+    public static boolean isLoopbackAddress(final String host) {
+	return AccessController.doPrivileged(
+	    new PrivilegedAction<Boolean>() {
+		@Override
+		public Boolean run() {
+		    try {
+			InetAddress addr = InetAddress.getByName(host);
+			return addr.isLoopbackAddress();
+		    } catch (UnknownHostException ignore) {
+		    }
+		    return false;
+		}
+	    });
+    }
+
+    public static boolean isLocalAddress(final String host) {
+	return AccessController.doPrivileged(
+	    new PrivilegedAction<Boolean>() {
+		@Override
+		public Boolean run() {
+		    try {
+			InetAddress[] addrs = InetAddress.getAllByName(host);
+
+			Enumeration<NetworkInterface> localNics =
+			    NetworkInterface.getNetworkInterfaces();
+
+			while (localNics.hasMoreElements()) {
+
+			    NetworkInterface nic = localNics.nextElement();
+			    Enumeration<InetAddress> localAddrs =
+				nic.getInetAddresses();
+
+			    while (localAddrs.hasMoreElements()) {
+				InetAddress localAddr =
+				    localAddrs.nextElement();
+
+				for (InetAddress addr : addrs) {
+				    if (addr.equals(localAddr)) {
+					return true;
+				    }
+				}
+			    }
+			}
+		    } catch (UnknownHostException e) {
+		    } catch (SocketException e) {
+		    }
+
+		    return false;
+		}
+	    });
+    }
+}