| /* |
| * 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. |
| * |
| * @exception IOException if an I/O error occurs while reading encoded data. |
| * @return an byte array of encoded KDCOptions. |
| */ |
| public byte[] asn1Encode() throws IOException { |
| DerOutputStream out = new DerOutputStream(); |
| out.putUnalignedBitString(bits); |
| return out.toByteArray(); |
| } |
| |
| public String toString() { |
| return bits.toString(); |
| } |
| } |