--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/components/visual-panels/core/src/java/util/com/oracle/solaris/vp/util/misc/TermUtil.java	Thu May 24 04:16:47 2012 -0400
@@ -0,0 +1,150 @@
+/*
+ * 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) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
+ */
+
+package com.oracle.solaris.vp.util.misc;
+
+import java.io.*;
+import java.security.*;
+import com.oracle.solaris.vp.util.misc.exception.CommandFailedException;
+
+public class TermUtil {
+    //
+    // Static data
+    //
+
+    private static String savedStty;
+    private static Thread shutdownHook =
+	new Thread() {
+	    @Override
+	    public void run() {
+		try {
+		    resetTty();
+		} catch (Exception ignore) {
+		}
+	    }
+	};
+
+    //
+    // Static methods
+    //
+
+    public static FileInputStream getStdIn() {
+	return AccessController.doPrivileged(
+	    new PrivilegedAction<FileInputStream>() {
+		@Override
+		public FileInputStream run() {
+		    return new FileInputStream(FileDescriptor.in);
+		}
+	    });
+    }
+
+    public synchronized static void setRawTty() throws IOException,
+        InterruptedException, CommandFailedException {
+
+	if (savedStty == null) {
+	    savedStty = stty("-g").getStdoutAsString();
+
+	    AccessController.doPrivileged(
+		new PrivilegedAction<Object>() {
+		    @Override
+		    public Object run() {
+			try {
+			    Runtime.getRuntime().addShutdownHook(shutdownHook);
+			} catch (IllegalArgumentException ignore) {
+			} catch (IllegalStateException ignore) {
+			}
+			return null;
+		    }
+		});
+	}
+
+	stty("raw -echo");
+    }
+
+    public synchronized static void resetTty() throws IOException,
+        InterruptedException, CommandFailedException {
+
+	if (savedStty != null) {
+	    stty(savedStty);
+	    savedStty = null;
+	    AccessController.doPrivileged(
+		new PrivilegedAction<Object>() {
+		    @Override
+		    public Object run() {
+			try {
+			    Runtime.getRuntime().removeShutdownHook(
+				shutdownHook);
+			} catch (IllegalStateException ignore) {
+			}
+			return null;
+		    }
+		});
+	}
+    }
+
+    //
+    // Private static methods
+    //
+
+    private static ProcessResult stty(final String args) throws IOException,
+	InterruptedException, CommandFailedException {
+
+	final IOException[] ioE = new IOException[1];
+	final InterruptedException[] intE = new InterruptedException[1];
+	final CommandFailedException[] comE = new CommandFailedException[1];
+
+	ProcessResult result = AccessController.doPrivileged(
+	    new PrivilegedAction<ProcessResult>() {
+		@Override
+		public ProcessResult run() {
+		    try {
+			return ProcessUtil.exec(0, "/bin/sh", "-c",
+			    "/usr/bin/stty " + args + " </dev/tty");
+		    } catch (IOException e) {
+			ioE[0] = e;
+		    } catch (InterruptedException e) {
+			intE[0] = e;
+		    } catch (CommandFailedException e) {
+			comE[0] = e;
+		    }
+		    return null;
+		}
+	    });
+
+	if (ioE[0] != null) {
+	    throw ioE[0];
+	}
+
+	if (intE[0] != null) {
+	    throw intE[0];
+	}
+
+	if (comE[0] != null) {
+	    throw comE[0];
+	}
+
+	return result;
+    }
+}