Showing the changes to java/pkg/sun/security/krb5/internal/MethodData.java (1 of 18352 files). Show all
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| 1 | +/* | |
| 2 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 3 | + * | |
| 4 | + * This code is free software; you can redistribute it and/or modify it | |
| 5 | + * under the terms of the GNU General Public License version 2 only, as | |
| 6 | + * published by the Free Software Foundation. Oracle designates this | |
| 7 | + * particular file as subject to the "Classpath" exception as provided | |
| 8 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 9 | + * | |
| 10 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 11 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 12 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 13 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 14 | + * accompanied this code). | |
| 15 | + * | |
| 16 | + * You should have received a copy of the GNU General Public License version | |
| 17 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 18 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 19 | + * | |
| 20 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 21 | + * or visit www.oracle.com if you need additional information or have any | |
| 22 | + * questions. | |
| 23 | + */ | |
| 24 | + | |
| 25 | +/* | |
| 26 | + * | |
| 27 | + * (C) Copyright IBM Corp. 1999 All Rights Reserved. | |
| 28 | + * Copyright 1997 The Open Group Research Institute. All rights reserved. | |
| 29 | + */ | |
| 30 | + | |
| 31 | +package sun.security.krb5.internal; | |
| 32 | + | |
| 33 | +import sun.security.util.*; | |
| 34 | +import sun.security.krb5.Asn1Exception; | |
| 35 | +import java.io.IOException; | |
| 36 | +import java.math.BigInteger; | |
| 37 | + | |
| 38 | +/** | |
| 39 | + * Implements the ASN.1 EncKrbPrivPart type. | |
| 40 | + * | |
| 41 | + * <xmp> | |
| 42 | + * METHOD-DATA ::= SEQUENCE { | |
| 43 | + * method-type[0] INTEGER, | |
| 44 | + * method-data[1] OCTET STRING OPTIONAL | |
| 45 | + * } | |
| 46 | + * </xmp> | |
| 47 | + */ | |
| 48 | +public class MethodData { | |
| 49 | + private int methodType; | |
| 50 | + private byte[] methodData = null; //optional | |
| 51 | + | |
| 52 | + public MethodData(int type, byte[] data) { | |
| 53 | + methodType = type; | |
| 54 | + if (data != null) { | |
| 55 | + methodData = data.clone(); | |
| 56 | + } | |
| 57 | + } | |
| 58 | + | |
| 59 | + /** | |
| 60 | + * Constructs a MethodData object. | |
| 61 | + * @param encoding a Der-encoded data. | |
| 62 | + * @exception Asn1Exception if an error occurs while decoding an ASN1 encoded data. | |
| 63 | + * @exception IOException if an I/O error occurs while reading encoded data. | |
| 64 | + */ | |
| 65 | + public MethodData(DerValue encoding) throws Asn1Exception, IOException { | |
| 66 | + DerValue der; | |
| 67 | + if (encoding.getTag() != DerValue.tag_Sequence) { | |
| 68 | + throw new Asn1Exception(Krb5.ASN1_BAD_ID); | |
| 69 | + } | |
| 70 | + der = encoding.getData().getDerValue(); | |
| 71 | + if ((der.getTag() & 0x1F) == 0x00) { | |
| 72 | + BigInteger bint = der.getData().getBigInteger(); | |
| 73 | + methodType = bint.intValue(); | |
| 74 | + } | |
| 75 | + else | |
| 76 | + throw new Asn1Exception(Krb5.ASN1_BAD_ID); | |
| 77 | + if (encoding.getData().available() > 0) { | |
| 78 | + der = encoding.getData().getDerValue(); | |
| 79 | + if ((der.getTag() & 0x1F) == 0x01) { | |
| 80 | + methodData = der.getData().getOctetString(); | |
| 81 | + } | |
| 82 | + else throw new Asn1Exception(Krb5.ASN1_BAD_ID); | |
| 83 | + } | |
| 84 | + if (encoding.getData().available() > 0) | |
| 85 | + throw new Asn1Exception(Krb5.ASN1_BAD_ID); | |
| 86 | + } | |
| 87 | + | |
| 88 | + /** | |
| 89 | + * Encodes an MethodData object. | |
| 90 | + * @return the byte array of encoded MethodData object. | |
| 91 | + * @exception Asn1Exception if an error occurs while decoding an ASN1 encoded data. | |
| 92 | + * @exception IOException if an I/O error occurs while reading encoded data. | |
| 93 | + */ | |
| 94 | + | |
| 95 | + public byte[] asn1Encode() throws Asn1Exception, IOException { | |
| 96 | + DerOutputStream bytes = new DerOutputStream(); | |
| 97 | + DerOutputStream temp = new DerOutputStream(); | |
| 98 | + temp.putInteger(BigInteger.valueOf(methodType)); | |
| 99 | + bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x00), temp); | |
| 100 | + if (methodData != null) { | |
| 101 | + temp = new DerOutputStream(); | |
| 102 | + temp.putOctetString(methodData); | |
| 103 | + bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x01), temp); | |
| 104 | + } | |
| 105 | + | |
| 106 | + temp = new DerOutputStream(); | |
| 107 | + temp.write(DerValue.tag_Sequence, bytes); | |
| 108 | + return temp.toByteArray(); | |
| 109 | + } | |
| 110 | + | |
| 111 | +} | |