82 lines
2.9 KiB
Java
82 lines
2.9 KiB
Java
|
import java.lang.reflect.Field;
|
||
|
|
import java.util.Hashtable;
|
||
|
|
|
||
|
|
import javax.naming.Context;
|
||
|
|
import javax.naming.NamingException;
|
||
|
|
import javax.naming.spi.NamingManager;
|
||
|
|
|
||
|
|
import com.sun.jndi.dns.DnsContext;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @test
|
||
|
|
* @bug 6991580
|
||
|
|
* @summary IPv6 Nameservers in resolv.conf throws NumberFormatException
|
||
|
|
* @run main/manual IPv6NameserverPlatformParsingTest
|
||
|
|
*
|
||
|
|
* In order to run this test be sure to place, for example, the following
|
||
|
|
* snippet into your platform's {@code /etc/resolv.conf}:
|
||
|
|
* <pre>
|
||
|
|
* nameserver 127.0.0.1
|
||
|
|
* nameserver 2001:4860:4860::8888
|
||
|
|
* nameserver [::1]:5353
|
||
|
|
* nameserver 127.0.0.1:5353
|
||
|
|
* </pre>
|
||
|
|
*
|
||
|
|
* Then, run this test as manual jtreg test.
|
||
|
|
*
|
||
|
|
* @author Severin Gehwolf
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
public class IPv6NameserverPlatformParsingTest {
|
||
|
|
|
||
|
|
private static boolean foundIPv6 = false;
|
||
|
|
|
||
|
|
public static void main(String[] args) {
|
||
|
|
Hashtable<String, String> env = new Hashtable<>();
|
||
|
|
env.put(Context.INITIAL_CONTEXT_FACTORY, com.sun.jndi.dns.DnsContextFactory.class.getName());
|
||
|
|
|
||
|
|
String[] servers;
|
||
|
|
try {
|
||
|
|
Context ctx = NamingManager.getInitialContext(env);
|
||
|
|
if (!com.sun.jndi.dns.DnsContextFactory.platformServersAvailable()) {
|
||
|
|
throw new RuntimeException("FAIL: no platform servers available, test does not make sense");
|
||
|
|
}
|
||
|
|
DnsContext context = (DnsContext)ctx;
|
||
|
|
servers = getServersFromContext(context);
|
||
|
|
} catch (NamingException e) {
|
||
|
|
throw new RuntimeException(e);
|
||
|
|
}
|
||
|
|
for (String server: servers) {
|
||
|
|
System.out.println("DEBUG: 'nameserver = " + server + "'");
|
||
|
|
if (server.indexOf(':') >= 0 && server.indexOf('.') < 0) {
|
||
|
|
System.out.println("DEBUG: ==> Found IPv6 address in servers list: " + server);
|
||
|
|
foundIPv6 = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
try {
|
||
|
|
new com.sun.jndi.dns.DnsClient(servers, 100, 1);
|
||
|
|
} catch (NumberFormatException e) {
|
||
|
|
throw new RuntimeException("FAIL: Tried to parse non-[]-encapsulated IPv6 address.", e);
|
||
|
|
} catch (Exception e) {
|
||
|
|
throw new RuntimeException("ERROR: Something unexpected happened.");
|
||
|
|
}
|
||
|
|
if (!foundIPv6) {
|
||
|
|
// This is a manual test, since it requires changing /etc/resolv.conf on Linux/Unix
|
||
|
|
// platforms. See comment as to how to run this test.
|
||
|
|
throw new RuntimeException("ERROR: No IPv6 address returned from platform.");
|
||
|
|
}
|
||
|
|
System.out.println("PASS: Found IPv6 address and DnsClient parsed it correctly.");
|
||
|
|
}
|
||
|
|
|
||
|
|
private static String[] getServersFromContext(DnsContext context) {
|
||
|
|
try {
|
||
|
|
Field serversField = DnsContext.class.getDeclaredField("servers");
|
||
|
|
serversField.setAccessible(true);
|
||
|
|
return (String[])serversField.get(context);
|
||
|
|
} catch (Exception e) {
|
||
|
|
throw new RuntimeException(e);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|