J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 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. Sun designates this |
| 7 | * particular file as subject to the "Classpath" exception as provided |
| 8 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 21 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 22 | * have any 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.ktab; |
| 32 | |
| 33 | import sun.security.krb5.internal.*; |
| 34 | import sun.security.krb5.internal.util.KrbDataOutputStream; |
| 35 | import java.io.IOException; |
| 36 | import java.io.FileOutputStream; |
| 37 | import java.io.OutputStream; |
| 38 | import java.io.UnsupportedEncodingException; |
| 39 | |
| 40 | /** |
| 41 | * This class implements a buffered input stream. It is used for parsing key table |
| 42 | * data to memory. |
| 43 | * |
| 44 | * @author Yanni Zhang |
| 45 | * |
| 46 | */ |
| 47 | public class KeyTabOutputStream extends KrbDataOutputStream implements KeyTabConstants { |
| 48 | private KeyTabEntry entry; |
| 49 | private int keyType; |
| 50 | private byte[] keyValue; |
| 51 | public int version; |
| 52 | |
| 53 | public KeyTabOutputStream(OutputStream os) { |
| 54 | super(os); |
| 55 | } |
| 56 | |
| 57 | public void writeVersion(int num) throws IOException { |
| 58 | version = num; |
| 59 | write16(num); //we use the standard version. |
| 60 | } |
| 61 | |
| 62 | public void writeEntry(KeyTabEntry entry) throws IOException { |
| 63 | write32(entry.entryLength()); |
| 64 | String[] serviceNames = entry.service.getNameStrings(); |
| 65 | int comp_num = serviceNames.length; |
| 66 | if (version == KRB5_KT_VNO_1) { |
| 67 | write16(comp_num + 1); |
| 68 | } |
| 69 | else write16(comp_num); |
| 70 | |
| 71 | byte[] realm = null; |
| 72 | try { |
| 73 | realm = entry.service.getRealmString().getBytes("8859_1"); |
| 74 | } catch (UnsupportedEncodingException exc) { |
| 75 | } |
| 76 | |
| 77 | write16(realm.length); |
| 78 | write(realm); |
| 79 | for (int i = 0; i < comp_num; i++) { |
| 80 | try { |
| 81 | write16(serviceNames[i].getBytes("8859_1").length); |
| 82 | write(serviceNames[i].getBytes("8859_1")); |
| 83 | } catch (UnsupportedEncodingException exc) { |
| 84 | } |
| 85 | } |
| 86 | write32(entry.service.getNameType()); |
| 87 | //time is long, but we only use 4 bytes to store the data. |
| 88 | write32((int)(entry.timestamp.getTime()/1000)); |
| 89 | |
| 90 | // the key version might be a 32 bit extended number. |
| 91 | write8(entry.keyVersion % 256 ); |
| 92 | write16(entry.keyType); |
| 93 | write16(entry.keyblock.length); |
| 94 | write(entry.keyblock); |
| 95 | |
| 96 | // if the key version isn't smaller than 256, it could be saved as |
| 97 | // extension key version number in 4 bytes. The nonzero extension |
| 98 | // key version number will be trusted. However, it isn't standardized |
| 99 | // yet, we won't support it. |
| 100 | // if (entry.keyVersion >= 256) { |
| 101 | // write32(entry.keyVersion); |
| 102 | //} |
| 103 | } |
| 104 | } |