--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/sun/security/krb5/internal/APOptions.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,110 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ *
+ *  (C) Copyright IBM Corp. 1999 All Rights Reserved.
+ *  Copyright 1997 The Open Group Research Institute.  All rights reserved.
+ */
+
+package sun.security.krb5.internal;
+
+import sun.security.krb5.Asn1Exception;
+import sun.security.krb5.internal.util.KerberosFlags;
+import sun.security.util.*;
+import java.io.IOException;
+
+/**
+ * Implements the ASN.1 APOptions type.
+ *
+ * <xmp>
+ * APOptions    ::= KerberosFlags
+ *      -- reserved(0),
+ *      -- use-session-key(1),
+ *      -- mutual-required(2)
+ * </xmp>
+ *
+ * KerberosFlags   ::= BIT STRING (SIZE (32..MAX))
+ *              -- minimum number of bits shall be sent,
+ *              -- but no fewer than 32
+ *
+ * <p>
+ * This definition reflects the Network Working Group RFC4120
+ * specification available at
+ * <a href="http://www.ietf.org/rfc/rfc4120.txt">
+ * http://www.ietf.org/rfc/rfc4120.txt</a>.
+ */
+
+public class APOptions extends KerberosFlags {
+    public APOptions() {
+        super(Krb5.AP_OPTS_MAX + 1);
+    }
+
+    public APOptions(int oneBit) throws Asn1Exception {
+        super(Krb5.AP_OPTS_MAX + 1);
+        set(oneBit, true);
+    }
+    public APOptions(int size, byte[] data) throws Asn1Exception {
+        super(size, data);
+        if ((size > data.length * BITS_PER_UNIT) || (size > Krb5.AP_OPTS_MAX + 1)) {
+            throw new Asn1Exception(Krb5.BITSTRING_BAD_LENGTH);
+        }
+    }
+
+    public APOptions(boolean[] data) throws Asn1Exception {
+        super(data);
+        if (data.length > Krb5.AP_OPTS_MAX + 1) {
+            throw new Asn1Exception(Krb5.BITSTRING_BAD_LENGTH);
+        }
+    }
+
+    public APOptions(DerValue encoding) throws IOException, Asn1Exception {
+        this(encoding.getUnalignedBitString(true).toBooleanArray());
+    }
+
+    /**
+     * Parse (unmarshal) an APOptions from a DER input stream.  This form
+     * parsing might be used when expanding a value which is part of
+     * a constructed sequence and uses explicitly tagged type.
+     *
+     * @param data the Der input stream value, which contains one or more marshaled value.
+     * @param explicitTag tag number.
+     * @param optional indicate if this data field is optional.
+     * @return an instance of APOptions.
+     * @exception Asn1Exception if an error occurs while decoding an ASN1 encoded data.
+     * @exception IOException if an I/O error occurs while reading encoded data.
+     *
+     */
+    public static APOptions parse(DerInputStream data, byte explicitTag, boolean optional) throws Asn1Exception, IOException {
+        if ((optional) && (((byte)data.peekByte() & (byte)0x1F) != explicitTag))
+            return null;
+        DerValue der = data.getDerValue();
+        if (explicitTag != (der.getTag() & (byte)0x1F))  {
+            throw new Asn1Exception(Krb5.ASN1_BAD_ID);
+        } else {
+            DerValue subDer = der.getData().getDerValue();
+            return new APOptions(subDer);
+        }
+    }
+}