/*
* Copyright ( c ) 2008 , 2012 , Oracle and / or its affiliates . All rights reserved .
* 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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*/
/*
* @ test
* @ bug 6673164 6552334 8077102
* @ modules java . security . jgss / sun . security . krb5 : + open
* @ run main / othervm DnsFallback
* @ summary fix dns_fallback parse error , and use dns by default
*/
import java.io.*;
import java.lang.reflect.Method;
import sun.security.krb5.Config;
public class DnsFallback {
static Method useDNS_Realm;
static Method useDNS_KDC;
public static void main(String[] args) throws Exception {
useDNS_Realm = Config.class .getDeclaredMethod("useDNS_Realm" );
useDNS_Realm.setAccessible(true );
useDNS_KDC = Config.class .getDeclaredMethod("useDNS_KDC" );
useDNS_KDC.setAccessible(true );
// for 6673164
check("true" , "true" , true , true );
check("false" , "true" , false , false );
check("true" , "false" , true , true );
check("false" , "false" , false , false );
check("true" , null , true , true );
check("false" , null , false , false );
check(null , "true" , true , true );
check(null , "false" , false , false );
// for 6552334, no longer true
//check(null, null, true, true);
// 8077102
check(null , null , false , true );
}
/**
* Sets and checks .
*
* @ param u dns_lookup_XXX value set , none if null
* @ param f dns_fallback value set , none if null
* @ param r expected useDNS_Realm
* @ param k expected useDNS_KDC
*/
static void check(String u, String f, boolean r, boolean k)
throws Exception {
try (PrintStream ps =
new PrintStream(new FileOutputStream("dnsfallback.conf" ))) {
ps.println("[libdefaults]\n" );
if (u != null ) {
ps.println("dns_lookup_realm=" + u);
ps.println("dns_lookup_kdc=" + u);
}
if (f != null ) {
ps.println("dns_fallback=" + f);
}
}
System.setProperty("java.security.krb5.conf" , "dnsfallback.conf" );
Config.refresh();
System.out.println("Testing " + u + ", " + f + ", " + r + ", " + k);
if (!useDNS_Realm.invoke(Config.getInstance()).equals(r)) {
throw new Exception("useDNS_Realm Fail" );
}
if (!useDNS_KDC.invoke(Config.getInstance()).equals(k)) {
throw new Exception("useDNS_KDC Fail" );
}
}
}
Messung V0.5 in Prozent C=90 H=92 G=90
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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