/*

 * 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.

 *

 * 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

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 */

import java.util.Arrays;

import java.util.HashSet;

import java.util.Set;

import sun.security.krb5.internal.ktab.KeyTab;

import sun.security.krb5.internal.ktab.KeyTabEntry;

/**

 * This class is called by the test ktcheck.sh and is not meant to run

 * by itself.

 */

public class KtabCheck {

    /**

     * Checks if a keytab contains exactly the keys (kvno and etype)

     * @param args keytabname kvno etype...

     */

    public static void main(String[] args) throws Exception {

        System.out.println("Checking " + Arrays.toString(args));

        KeyTab ktab = KeyTab.getInstance(args[0]);

        Set<String> expected = new HashSet<>();

        for (int i=1; i<args.length; i += 2) {

            expected.add(args[i]+":"+args[i+1]);

        }

        for (KeyTabEntry e: ktab.getEntries()) {

            // KVNO and etype

            String vne = e.getKey().getKeyVersionNumber() + ":" +

                    e.getKey().getEType();

            if (!expected.contains(vne)) {

                throw new Exception("No " + vne + " in expected");

            }

            expected.remove(vne);

        }

        if (!expected.isEmpty()) {

            throw new Exception("Extra elements in expected");

        }

    }

}