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/* PrintCertCmd.java -- The printcert command handler of the keytool
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Copyright (C) 2006 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.classpath.tools.keytool;
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import java.io.PrintWriter;
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import java.security.cert.Certificate;
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import java.security.cert.CertificateException;
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import java.security.cert.CertificateFactory;
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import java.util.logging.Logger;
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* The <b>-printcert</b> keytool command handler is used to read a certificate
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* from a designated file, and print its contents in a human-readable format.
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* Possible options for this command are:
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* <dt>-file FILE_NAME</dt>
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* <dd>The fully qualified path of the file to read the certificate from.
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* If this option is omitted, the tool will process STDIN.
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* <dd>Use this option to enable more verbose output.</dd>
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class PrintCertCmd extends Command
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private static final Logger log = Logger.getLogger(PrintCertCmd.class.getName());
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private String _certFileName;
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// default 0-arguments constructor
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// public setters -----------------------------------------------------------
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/** @param pathName the fully qualified path name of the file to process. */
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public void setFile(String pathName)
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this._certFileName = pathName;
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// life-cycle methods -------------------------------------------------------
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int processArgs(String[] args, int i)
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int limit = args.length;
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log.finest("args[" + i + "]=" + opt);
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if (opt == null || opt.length() == 0)
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if ("-file".equals(opt)) // -file FILE_NAME
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_certFileName = args[++i];
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else if ("-v".equals(opt))
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void setup() throws Exception
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setInputStreamParam(_certFileName);
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log.finer("-printcert handler will use the following options:");
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log.finer(" -file=" + _certFileName);
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log.finer(" -v=" + verbose);
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void start() throws CertificateException
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log.entering(getClass().getName(), "start");
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CertificateFactory x509Factory = CertificateFactory.getInstance(Main.X_509);
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Certificate certificate = x509Factory.generateCertificate(inStream);
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PrintWriter writer = new PrintWriter(System.out, true);
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printVerbose(certificate, writer);
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log.exiting(getClass().getName(), "start");