/*
* 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.util;
import java.io.IOException;
import java.util.Arrays;
import sun.security.krb5.internal.Krb5;
import sun.security.util.BitArray;
import sun.security.util.DerOutputStream;
/**
* A wrapper class around sun.security.util.BitArray, so that KDCOptions,
* TicketFlags and ApOptions in krb5 classes can utilize some functions
* in BitArray classes.
*
* The data type is defined in RFC 4120 as:
*
* 5.2.8. KerberosFlags
*
* For several message types, a specific constrained bit string type,
* KerberosFlags, is used.
*
* KerberosFlags ::= BIT STRING (SIZE (32..MAX))
* -- minimum number of bits shall be sent,
* -- but no fewer than 32
*
* @author Yanni Zhang
*/
public class KerberosFlags {
BitArray bits;
// This constant is used by child classes.
protected static final int BITS_PER_UNIT = 8;
public KerberosFlags(int length) throws IllegalArgumentException {
bits = new BitArray(length);
}
public KerberosFlags(int length, byte[] a) throws IllegalArgumentException {
bits = new BitArray(length, a);
if (length != Krb5.KRB_FLAGS_MAX+1) {
bits = new BitArray(Arrays.copyOf(bits.toBooleanArray(), Krb5.KRB_FLAGS_MAX+1));
}
}
public KerberosFlags(boolean[] bools) {
bits = new BitArray((bools.length==Krb5.KRB_FLAGS_MAX+1)?
bools:
Arrays.copyOf(bools, Krb5.KRB_FLAGS_MAX+1));
}
public void set(int index, boolean value) {
bits.set(index, value);
}
public boolean get(int index) {
return bits.get(index);
}
public boolean[] toBooleanArray() {
return bits.toBooleanArray();
}
/**
* Writes the encoded data.
*
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