/*

 * 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.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.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.ccache;

import sun.security.krb5.*;

import java.io.ByteArrayOutputStream;

/**

 * tag field introduced in KRB5_FCC_FVNO_4

 *

 * @author Yanni Zhang

 */

public class Tag{

    int length;

    int tag;

    int tagLen;

    Integer time_offset;

    Integer usec_offset;

    public Tag(int len, int new_tag, Integer new_time, Integer new_usec) {

        tag = new_tag;

        tagLen = 8;

        time_offset = new_time;

        usec_offset = new_usec;

        length =  4 + tagLen;

    }

    public Tag(int new_tag) {

        tag = new_tag;

        tagLen = 0;

        length = 4 + tagLen;

    }

    public byte[] toByteArray() {

        ByteArrayOutputStream os = new ByteArrayOutputStream();

        os.write(length);

        os.write(tag);

        os.write(tagLen);

        if (time_offset != null) {

            os.write(time_offset.intValue());

        }

        if (usec_offset != null) {

            os.write(usec_offset.intValue());

        }

        return os.toByteArray();

    }

}