author | weijun |
Thu, 28 Oct 2010 21:14:44 +0800 | |
changeset 7037 | 9fd3887c8010 |
parent 5506 | 202f599c92aa |
child 7296 | fa827ef8c75e |
permissions | -rw-r--r-- |
2 | 1 |
/* |
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* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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||
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/* |
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* (C) Copyright IBM Corp. 1999 All Rights Reserved. |
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* Copyright 1997 The Open Group Research Institute. All rights reserved. |
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*/ |
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||
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package sun.security.krb5.internal.tools; |
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import sun.security.krb5.*; |
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import sun.security.krb5.internal.ktab.*; |
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import java.io.IOException; |
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import java.io.BufferedReader; |
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import java.io.InputStreamReader; |
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import java.io.File; |
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import java.text.DateFormat; |
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import java.util.Arrays; |
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import java.util.Date; |
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import java.util.Locale; |
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import sun.security.krb5.internal.crypto.EType; |
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/** |
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* This class can execute as a command-line tool to help the user manage |
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* entries in the key table. |
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* Available functions include list/add/update/delete service key(s). |
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* |
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* @author Yanni Zhang |
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* @author Ram Marti |
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*/ |
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public class Ktab { |
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// KeyTabAdmin admin; |
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KeyTab table; |
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char action; |
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String name; // name and directory of key table |
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String principal; |
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boolean showEType; |
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boolean showTime; |
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int etype = -1; |
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char[] password = null; |
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boolean forced = false; // true if delete without prompt. Default false |
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boolean append = false; // true if new keys are appended. Default false |
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int vDel = -1; // kvno to delete, -1 all, -2 old. Default -1 |
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int vAdd = -1; // kvno to add. Default -1, means auto incremented |
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/** |
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* The main program that can be invoked at command line. |
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* See {@link #printHelp} for usages. |
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*/ |
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public static void main(String[] args) { |
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Ktab ktab = new Ktab(); |
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if ((args.length == 1) && (args[0].equalsIgnoreCase("-help"))) { |
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ktab.printHelp(); |
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return; |
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} else if ((args == null) || (args.length == 0)) { |
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ktab.action = 'l'; |
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} else { |
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ktab.processArgs(args); |
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} |
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try { |
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if (ktab.name == null) { |
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// ktab.admin = new KeyTabAdmin(); // use the default keytab. |
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ktab.table = KeyTab.getInstance(); |
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if (ktab.table == null) { |
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if (ktab.action == 'a') { |
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ktab.table = KeyTab.create(); |
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} else { |
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System.out.println("No default key table exists."); |
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System.exit(-1); |
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} |
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} |
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} else { |
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if ((ktab.action != 'a') && |
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!(new File(ktab.name)).exists()) { |
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System.out.println("Key table " + |
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ktab.name + " does not exist."); |
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System.exit(-1); |
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} else { |
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ktab.table = KeyTab.getInstance(ktab.name); |
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} |
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if (ktab.table == null) { |
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if (ktab.action == 'a') { |
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ktab.table = KeyTab.create(ktab.name); |
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} else { |
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System.out.println("The format of key table " + |
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ktab.name + " is incorrect."); |
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System.exit(-1); |
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} |
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} |
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} |
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} catch (RealmException e) { |
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System.err.println("Error loading key table."); |
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System.exit(-1); |
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} catch (IOException e) { |
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System.err.println("Error loading key table."); |
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System.exit(-1); |
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} |
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switch (ktab.action) { |
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case 'l': |
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ktab.listKt(); |
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break; |
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case 'a': |
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ktab.addEntry(); |
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break; |
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case 'd': |
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ktab.deleteEntry(); |
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break; |
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default: |
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ktab.printHelp(); |
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} |
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} |
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||
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/** |
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* Parses the command line arguments. |
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*/ |
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void processArgs(String[] args) { |
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// Commands (should appear before options): |
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// -l |
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// -a <princ> |
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// -d <princ> |
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// Options: |
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// -e <etype> (for -d) |
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// -e (for -l) |
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// -n <kvno> |
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// -k <keytab> |
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// -t |
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// -f |
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// -append |
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// Optional extra arguments: |
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// password for -a |
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// [kvno|all|old] for -d |
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|
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boolean argAlreadyAppeared = false; |
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for (int i = 0; i < args.length; i++) { |
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if (args[i].startsWith("-")) { |
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switch (args[i].toLowerCase(Locale.US)) { |
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161 |
|
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// Commands |
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case "-l": // list |
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action = 'l'; |
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break; |
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case "-a": // add a new entry to keytab. |
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action = 'a'; |
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if (++i >= args.length || args[i].startsWith("-")) { |
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error("A principal name must be specified after -a"); |
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170 |
} |
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principal = args[i]; |
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172 |
break; |
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173 |
case "-d": // delete entries |
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174 |
action = 'd'; |
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175 |
if (++i >= args.length || args[i].startsWith("-")) { |
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176 |
error("A principal name must be specified after -d"); |
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177 |
} |
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178 |
principal = args[i]; |
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179 |
break; |
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180 |
|
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181 |
// Options |
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182 |
case "-e": |
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183 |
if (action == 'l') { // list etypes |
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184 |
showEType = true; |
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185 |
} else if (action == 'd') { // delete etypes |
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186 |
if (++i >= args.length || args[i].startsWith("-")) { |
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187 |
error("An etype must be specified after -e"); |
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188 |
} |
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189 |
try { |
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190 |
etype = Integer.parseInt(args[i]); |
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191 |
if (etype <= 0) { |
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192 |
throw new NumberFormatException(); |
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193 |
} |
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194 |
} catch (NumberFormatException nfe) { |
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195 |
error(args[i] + " is not a valid etype"); |
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196 |
} |
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197 |
} else { |
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198 |
error(args[i] + " is not valid after -" + action); |
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199 |
} |
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200 |
break; |
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201 |
case "-n": // kvno for -a |
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202 |
if (++i >= args.length || args[i].startsWith("-")) { |
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203 |
error("A KVNO must be specified after -n"); |
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204 |
} |
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|
205 |
try { |
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206 |
vAdd = Integer.parseInt(args[i]); |
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207 |
if (vAdd < 0) { |
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208 |
throw new NumberFormatException(); |
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209 |
} |
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210 |
} catch (NumberFormatException nfe) { |
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211 |
error(args[i] + " is not a valid KVNO"); |
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212 |
} |
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213 |
break; |
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|
214 |
case "-k": // specify keytab to use |
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215 |
if (++i >= args.length || args[i].startsWith("-")) { |
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216 |
error("A keytab name must be specified after -k"); |
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217 |
} |
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|
218 |
if (args[i].length() >= 5 && |
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219 |
args[i].substring(0, 5).equalsIgnoreCase("FILE:")) { |
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220 |
name = args[i].substring(5); |
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|
221 |
} else { |
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222 |
name = args[i]; |
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223 |
} |
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|
224 |
break; |
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|
225 |
case "-t": // list timestamps |
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|
226 |
showTime = true; |
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|
227 |
break; |
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|
228 |
case "-f": // force delete, no prompt |
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|
229 |
forced = true; |
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|
230 |
break; |
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|
231 |
case "-append": // -a, new keys append to file |
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232 |
append = true; |
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|
233 |
break; |
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|
234 |
default: |
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|
235 |
printHelp(); |
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|
236 |
break; |
2 | 237 |
} |
7037
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|
238 |
} else { // optional standalone arguments |
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|
239 |
if (argAlreadyAppeared) { |
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|
240 |
error("Useless extra argument " + args[i]); |
2 | 241 |
} |
7037
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|
242 |
if (action == 'a') { |
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|
243 |
password = args[i].toCharArray(); |
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|
244 |
} else if (action == 'd') { |
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|
245 |
switch (args[i]) { |
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|
246 |
case "all": vDel = -1; break; |
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|
247 |
case "old": vDel = -2; break; |
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|
248 |
default: { |
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|
249 |
try { |
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|
250 |
vDel = Integer.parseInt(args[i]); |
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|
251 |
if (vDel < 0) { |
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|
252 |
throw new NumberFormatException(); |
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|
253 |
} |
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|
254 |
} catch (NumberFormatException nfe) { |
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|
255 |
error(args[i] + " is not a valid KVNO"); |
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|
256 |
} |
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|
257 |
} |
3317 | 258 |
} |
2 | 259 |
} else { |
7037
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|
260 |
error("Useless extra argument " + args[i]); |
2 | 261 |
} |
7037
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|
262 |
argAlreadyAppeared = true; |
2 | 263 |
} |
264 |
} |
|
265 |
} |
|
266 |
||
267 |
/** |
|
268 |
* Adds a service key to key table. If the specified key table does not |
|
269 |
* exist, the program will automatically generate |
|
270 |
* a new key table. |
|
271 |
*/ |
|
272 |
void addEntry() { |
|
273 |
PrincipalName pname = null; |
|
274 |
try { |
|
275 |
pname = new PrincipalName(principal); |
|
276 |
if (pname.getRealm() == null) { |
|
277 |
pname.setRealm(Config.getInstance().getDefaultRealm()); |
|
278 |
} |
|
279 |
} catch (KrbException e) { |
|
280 |
System.err.println("Failed to add " + principal + |
|
281 |
" to keytab."); |
|
282 |
e.printStackTrace(); |
|
283 |
System.exit(-1); |
|
284 |
} |
|
285 |
if (password == null) { |
|
286 |
try { |
|
287 |
BufferedReader cis = |
|
288 |
new BufferedReader(new InputStreamReader(System.in)); |
|
289 |
System.out.print("Password for " + pname.toString() + ":"); |
|
290 |
System.out.flush(); |
|
291 |
password = cis.readLine().toCharArray(); |
|
292 |
} catch (IOException e) { |
|
293 |
System.err.println("Failed to read the password."); |
|
294 |
e.printStackTrace(); |
|
295 |
System.exit(-1); |
|
296 |
} |
|
297 |
||
298 |
} |
|
299 |
try { |
|
300 |
// admin.addEntry(pname, password); |
|
7037
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|
301 |
table.addEntry(pname, password, vAdd, append); |
2 | 302 |
Arrays.fill(password, '0'); // clear password |
303 |
// admin.save(); |
|
304 |
table.save(); |
|
305 |
System.out.println("Done!"); |
|
306 |
System.out.println("Service key for " + principal + |
|
307 |
" is saved in " + table.tabName()); |
|
308 |
||
309 |
} catch (KrbException e) { |
|
310 |
System.err.println("Failed to add " + principal + " to keytab."); |
|
311 |
e.printStackTrace(); |
|
312 |
System.exit(-1); |
|
313 |
} catch (IOException e) { |
|
314 |
System.err.println("Failed to save new entry."); |
|
315 |
e.printStackTrace(); |
|
316 |
System.exit(-1); |
|
317 |
} |
|
318 |
} |
|
319 |
||
320 |
/** |
|
321 |
* Lists key table name and entries in it. |
|
322 |
*/ |
|
323 |
void listKt() { |
|
3317 | 324 |
System.out.println("Keytab name: " + KeyTab.tabName()); |
2 | 325 |
KeyTabEntry[] entries = table.getEntries(); |
326 |
if ((entries != null) && (entries.length > 0)) { |
|
3317 | 327 |
String[][] output = new String[entries.length+1][showTime?3:2]; |
328 |
int column = 0; |
|
329 |
output[0][column++] = "KVNO"; |
|
330 |
if (showTime) output[0][column++] = "Timestamp"; |
|
331 |
output[0][column++] = "Principal"; |
|
2 | 332 |
for (int i = 0; i < entries.length; i++) { |
3317 | 333 |
column = 0; |
334 |
output[i+1][column++] = entries[i].getKey(). |
|
335 |
getKeyVersionNumber().toString(); |
|
336 |
if (showTime) output[i+1][column++] = |
|
337 |
DateFormat.getDateTimeInstance( |
|
338 |
DateFormat.SHORT, DateFormat.SHORT).format( |
|
339 |
new Date(entries[i].getTimeStamp().getTime())); |
|
340 |
String princ = entries[i].getService().toString(); |
|
341 |
if (showEType) { |
|
342 |
int e = entries[i].getKey().getEType(); |
|
343 |
output[i+1][column++] = princ + " (" + e + ":" + |
|
344 |
EType.toString(e) + ")"; |
|
345 |
} else { |
|
346 |
output[i+1][column++] = princ; |
|
347 |
} |
|
348 |
} |
|
349 |
int[] width = new int[column]; |
|
350 |
for (int j=0; j<column; j++) { |
|
351 |
for (int i=0; i <= entries.length; i++) { |
|
352 |
if (output[i][j].length() > width[j]) { |
|
353 |
width[j] = output[i][j].length(); |
|
2 | 354 |
} |
355 |
} |
|
3317 | 356 |
if (j != 0) width[j] = -width[j]; |
357 |
} |
|
358 |
for (int j=0; j<column; j++) { |
|
359 |
System.out.printf("%" + width[j] + "s ", output[0][j]); |
|
360 |
} |
|
361 |
System.out.println(); |
|
362 |
for (int j=0; j<column; j++) { |
|
363 |
for (int k=0; k<Math.abs(width[j]); k++) System.out.print("-"); |
|
364 |
System.out.print(" "); |
|
365 |
} |
|
366 |
System.out.println(); |
|
367 |
for (int i=0; i<entries.length; i++) { |
|
368 |
for (int j=0; j<column; j++) { |
|
369 |
System.out.printf("%" + width[j] + "s ", output[i+1][j]); |
|
370 |
} |
|
371 |
System.out.println(); |
|
2 | 372 |
} |
373 |
} else { |
|
374 |
System.out.println("0 entry."); |
|
375 |
} |
|
376 |
} |
|
377 |
||
378 |
/** |
|
379 |
* Deletes an entry from the key table. |
|
380 |
*/ |
|
381 |
void deleteEntry() { |
|
382 |
PrincipalName pname = null; |
|
383 |
try { |
|
384 |
pname = new PrincipalName(principal); |
|
385 |
if (pname.getRealm() == null) { |
|
386 |
pname.setRealm(Config.getInstance().getDefaultRealm()); |
|
387 |
} |
|
7037
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diff
changeset
|
388 |
if (!forced) { |
9fd3887c8010
6950546: "ktab -d name etype" to "ktab -d name [-e etype] [kvno | all | old]"
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diff
changeset
|
389 |
String answer; |
9fd3887c8010
6950546: "ktab -d name etype" to "ktab -d name [-e etype] [kvno | all | old]"
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diff
changeset
|
390 |
BufferedReader cis = |
9fd3887c8010
6950546: "ktab -d name etype" to "ktab -d name [-e etype] [kvno | all | old]"
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diff
changeset
|
391 |
new BufferedReader(new InputStreamReader(System.in)); |
9fd3887c8010
6950546: "ktab -d name etype" to "ktab -d name [-e etype] [kvno | all | old]"
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diff
changeset
|
392 |
System.out.print("Are you sure you want to delete "+ |
9fd3887c8010
6950546: "ktab -d name etype" to "ktab -d name [-e etype] [kvno | all | old]"
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diff
changeset
|
393 |
"service key(s) for " + pname.toString() + |
9fd3887c8010
6950546: "ktab -d name etype" to "ktab -d name [-e etype] [kvno | all | old]"
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diff
changeset
|
394 |
" (" + (etype==-1?"all etypes":("etype="+etype)) + ", " + |
9fd3887c8010
6950546: "ktab -d name etype" to "ktab -d name [-e etype] [kvno | all | old]"
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diff
changeset
|
395 |
(vDel==-1?"all kvno":(vDel==-2?"old kvno":("kvno=" + vDel))) + |
9fd3887c8010
6950546: "ktab -d name etype" to "ktab -d name [-e etype] [kvno | all | old]"
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diff
changeset
|
396 |
") in " + table.tabName() + "? (Y/[N]): "); |
2 | 397 |
|
7037
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6950546: "ktab -d name etype" to "ktab -d name [-e etype] [kvno | all | old]"
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diff
changeset
|
398 |
System.out.flush(); |
9fd3887c8010
6950546: "ktab -d name etype" to "ktab -d name [-e etype] [kvno | all | old]"
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5506
diff
changeset
|
399 |
answer = cis.readLine(); |
9fd3887c8010
6950546: "ktab -d name etype" to "ktab -d name [-e etype] [kvno | all | old]"
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5506
diff
changeset
|
400 |
if (answer.equalsIgnoreCase("Y") || |
9fd3887c8010
6950546: "ktab -d name etype" to "ktab -d name [-e etype] [kvno | all | old]"
weijun
parents:
5506
diff
changeset
|
401 |
answer.equalsIgnoreCase("Yes")); |
9fd3887c8010
6950546: "ktab -d name etype" to "ktab -d name [-e etype] [kvno | all | old]"
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diff
changeset
|
402 |
else { |
9fd3887c8010
6950546: "ktab -d name etype" to "ktab -d name [-e etype] [kvno | all | old]"
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parents:
5506
diff
changeset
|
403 |
// no error, the user did not want to delete the entry |
9fd3887c8010
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|
404 |
System.exit(0); |
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|
405 |
} |
2 | 406 |
} |
407 |
} catch (KrbException e) { |
|
408 |
System.err.println("Error occured while deleting the entry. "+ |
|
409 |
"Deletion failed."); |
|
410 |
e.printStackTrace(); |
|
411 |
System.exit(-1); |
|
412 |
} catch (IOException e) { |
|
413 |
System.err.println("Error occured while deleting the entry. "+ |
|
414 |
" Deletion failed."); |
|
415 |
e.printStackTrace(); |
|
416 |
System.exit(-1); |
|
417 |
} |
|
3317 | 418 |
|
7037
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419 |
int count = table.deleteEntries(pname, etype, vDel); |
2 | 420 |
|
3317 | 421 |
if (count == 0) { |
422 |
System.err.println("No matched entry in the keytab. " + |
|
2 | 423 |
"Deletion fails."); |
424 |
System.exit(-1); |
|
3317 | 425 |
} else { |
426 |
try { |
|
427 |
table.save(); |
|
428 |
} catch (IOException e) { |
|
429 |
System.err.println("Error occurs while saving the keytab. " + |
|
430 |
"Deletion fails."); |
|
431 |
e.printStackTrace(); |
|
432 |
System.exit(-1); |
|
433 |
} |
|
7037
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|
434 |
System.out.println("Done! " + count + " entries removed."); |
2 | 435 |
} |
436 |
} |
|
437 |
||
7037
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|
438 |
void error(String... errors) { |
9fd3887c8010
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439 |
for (String error: errors) { |
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440 |
System.out.println("Error: " + error + "."); |
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441 |
} |
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|
442 |
printHelp(); |
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|
443 |
System.exit(-1); |
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444 |
} |
2 | 445 |
/** |
446 |
* Prints out the help information. |
|
447 |
*/ |
|
448 |
void printHelp() { |
|
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|
449 |
System.out.println("\nUsage: ktab <commands> <options>"); |
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450 |
System.out.println(); |
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|
451 |
System.out.println("Available commands:"); |
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|
452 |
System.out.println(); |
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|
453 |
System.out.println("-l [-e] [-t]\n" |
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|
454 |
+ " list the keytab name and entries. -e with etype, -t with timestamp."); |
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|
455 |
System.out.println("-a <principal name> [<password>] [-n <kvno>] [-append]\n" |
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|
456 |
+ " add new key entries to the keytab for the given principal name with\n" |
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|
457 |
+ " optional <password>. If a <kvno> is specified, new keys' Key Version\n" |
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|
458 |
+ " Numbers equal to the value, otherwise, automatically incrementing\n" |
9fd3887c8010
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|
459 |
+ " the Key Version Numbers. If -append is specified, new keys are\n" |
9fd3887c8010
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|
460 |
+ " appended to the keytab, otherwise, old keys for the\n" |
9fd3887c8010
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|
461 |
+ " same principal are removed."); |
9fd3887c8010
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|
462 |
System.out.println("-d <principal name> [-f] [-e <etype>] [<kvno> | all | old]\n" |
9fd3887c8010
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|
463 |
+ " delete key entries from the keytab for the specified principal. If\n" |
9fd3887c8010
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|
464 |
+ " <kvno> is specified, delete keys whose Key Version Numbers match\n" |
9fd3887c8010
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|
465 |
+ " kvno. If \"all\" is specified, delete all keys. If \"old\" is specified,\n" |
9fd3887c8010
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changeset
|
466 |
+ " delete all keys except those with the highest kvno. Default action\n" |
9fd3887c8010
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changeset
|
467 |
+ " is \"all\". If <etype> is specified, only keys of this encryption type\n" |
9fd3887c8010
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changeset
|
468 |
+ " are deleted. <etype> should be specified as the numberic value etype\n" |
9fd3887c8010
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changeset
|
469 |
+ " defined in RFC 3961, section 8. A prompt to confirm the deletion is\n" |
9fd3887c8010
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changeset
|
470 |
+ " displayed unless -f is specified."); |
9fd3887c8010
6950546: "ktab -d name etype" to "ktab -d name [-e etype] [kvno | all | old]"
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changeset
|
471 |
System.out.println(); |
9fd3887c8010
6950546: "ktab -d name etype" to "ktab -d name [-e etype] [kvno | all | old]"
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changeset
|
472 |
System.out.println("Common option(s):"); |
9fd3887c8010
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changeset
|
473 |
System.out.println(); |
9fd3887c8010
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changeset
|
474 |
System.out.println("-k <keytab name>\n" |
9fd3887c8010
6950546: "ktab -d name etype" to "ktab -d name [-e etype] [kvno | all | old]"
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changeset
|
475 |
+ " specify keytab name and path with prefix FILE:"); |
2 | 476 |
} |
477 |
} |