--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/sun/security/x509/GeneralNameInterface.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,103 @@
+/*
+ * Copyright 1997-2000 Sun Microsystems, Inc.  All Rights Reserved.
+ * 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.
+ */
+
+package sun.security.x509;
+
+import java.io.IOException;
+
+import sun.security.util.*;
+
+/**
+ * This interface specifies the abstract methods which have to be
+ * implemented by all the members of the GeneralNames ASN.1 object.
+ *
+ * @author Amit Kapoor
+ * @author Hemma Prafullchandra
+ */
+public interface GeneralNameInterface {
+    /**
+     * The list of names supported.
+     */
+    public static final int NAME_ANY = 0;
+    public static final int NAME_RFC822 = 1;
+    public static final int NAME_DNS = 2;
+    public static final int NAME_X400 = 3;
+    public static final int NAME_DIRECTORY = 4;
+    public static final int NAME_EDI = 5;
+    public static final int NAME_URI = 6;
+    public static final int NAME_IP = 7;
+    public static final int NAME_OID = 8;
+
+    /**
+     * The list of constraint results.
+     */
+    public static final int NAME_DIFF_TYPE = -1; /* input name is different type from name (i.e. does not constrain) */
+    public static final int NAME_MATCH = 0;      /* input name matches name */
+    public static final int NAME_NARROWS = 1;    /* input name narrows name */
+    public static final int NAME_WIDENS = 2;     /* input name widens name */
+    public static final int NAME_SAME_TYPE = 3;  /* input name does not match, narrow, or widen, but is same type */
+
+    /**
+     * Return the type of the general name, as
+     * defined above.
+     */
+    int getType();
+
+    /**
+     * Encode the name to the specified DerOutputStream.
+     *
+     * @param out the DerOutputStream to encode the GeneralName to.
+     * @exception IOException thrown if the GeneralName could not be
+     *            encoded.
+     */
+    void encode(DerOutputStream out) throws IOException;
+
+    /**
+     * Return type of constraint inputName places on this name:<ul>
+     *   <li>NAME_DIFF_TYPE = -1: input name is different type from name (i.e. does not constrain).
+     *   <li>NAME_MATCH = 0: input name matches name.
+     *   <li>NAME_NARROWS = 1: input name narrows name (is lower in the naming subtree)
+     *   <li>NAME_WIDENS = 2: input name widens name (is higher in the naming subtree)
+     *   <li>NAME_SAME_TYPE = 3: input name does not match or narrow name, but is same type.
+     * </ul>.  These results are used in checking NameConstraints during
+     * certification path verification.
+     *
+     * @param inputName to be checked for being constrained
+     * @returns constraint type above
+     * @throws UnsupportedOperationException if name is same type, but comparison operations are
+     *          not supported for this name type.
+     */
+    int constrains(GeneralNameInterface inputName) throws UnsupportedOperationException;
+
+    /**
+     * Return subtree depth of this name for purposes of determining
+     * NameConstraints minimum and maximum bounds and for calculating
+     * path lengths in name subtrees.
+     *
+     * @returns distance of name from root
+     * @throws UnsupportedOperationException if not supported for this name type
+     */
+    int subtreeDepth() throws UnsupportedOperationException;
+}