68 lines
2.3 KiB
Java
68 lines
2.3 KiB
Java
/*
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* Copyright (c) 2013, 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.
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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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* @test
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* @bug 8009875
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* @summary Provide a default udp_preference_limit for krb5.conf
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* @modules java.security.jgss/sun.security.krb5:+open
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* @run main/othervm DefUdpLimit -1 1465
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* @run main/othervm DefUdpLimit 0 0
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* @run main/othervm DefUdpLimit 1234 1234
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* @run main/othervm DefUdpLimit 12345 12345
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* @run main/othervm DefUdpLimit 123456 32700
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*
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*/
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import sun.security.krb5.KdcComm;
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import java.lang.reflect.Field;
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import java.nio.file.Files;
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import java.nio.file.Paths;
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public class DefUdpLimit {
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public static void main(String[] args) throws Exception {
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int set = Integer.valueOf(args[0]);
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int expected = Integer.valueOf(args[1]);
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Field f = KdcComm.class.getDeclaredField("defaultUdpPrefLimit");
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f.setAccessible(true);
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writeConf(set);
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int actual = (Integer)f.get(null);
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if (actual != expected) {
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throw new Exception("Expected: " + expected + ", get " + actual);
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}
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}
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static void writeConf(int i) throws Exception {
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String file = "krb5.conf." + i;
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String content = "[libdefaults]\n";
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if (i >= 0) {
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content += "udp_preference_limit = " + i;
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}
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Files.write(Paths.get(file), content.getBytes());
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System.setProperty("java.security.krb5.conf", file);
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}
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}
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