| /* |
| * Copyright (c) 2000, 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 |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * |
| * @bug 4204320 |
| * |
| * @summary DatagramSocket.send should throw exception when connected |
| * to an invalid destination (on platforms that support it). |
| */ |
| |
| import java.net.*; |
| import java.util.*; |
| import java.io.InterruptedIOException; |
| |
| public class SendDatagramToBadAddress { |
| |
| static boolean debug = false; |
| |
| public static boolean OSsupportsFeature () { |
| Properties p = System.getProperties (); |
| String v; |
| if (p.getProperty ("os.name").equals ("Windows 2000")) |
| return (true); |
| if (p.getProperty ("os.name").equals ("Linux")) |
| return (true); |
| if (p.getProperty ("os.name").startsWith ("Mac OS")) |
| return (true); |
| // Check for specific Solaris version from here |
| v = p.getProperty ("os.arch"); |
| if (!v.equalsIgnoreCase ("sparc")) |
| return (false); |
| v = p.getProperty ("os.name"); |
| if (!v.equalsIgnoreCase ("Solaris") && !v.equalsIgnoreCase ("SunOS")) |
| return (false); |
| v = p.getProperty ("os.version"); |
| if (v.equals ("5.8") || v.equals ("8")) |
| return (false); |
| return (true); |
| } |
| |
| static void print (String s) { |
| if (debug) |
| System.out.println (s); |
| } |
| |
| class Server { |
| |
| DatagramSocket server; |
| byte[] buf = new byte [128]; |
| DatagramPacket pack = new DatagramPacket (buf, buf.length); |
| |
| public Server (DatagramSocket s) { |
| server = s; |
| } |
| |
| public void receive (int loop, boolean expectError) throws Exception { |
| for (int i=0; i<loop; i++) { |
| try { |
| server.receive (pack); |
| } catch (Exception e) { |
| if (expectError) { |
| print ("Got expected error: " + e); |
| continue; |
| } else { |
| print ("Got: " + new String (pack.getData())); |
| print ("Expected: " + new String (buf)); |
| throw new Exception ("Error reading data: Iter " +i); |
| } |
| } |
| String s1 = "Hello, server"+i; |
| byte[] buf = s1.getBytes(); |
| if (!s1.equals (new String (pack.getData(), |
| pack.getOffset(),pack.getLength()))) { |
| print ("Got: " + new String (pack.getData())); |
| print ("Expected: " + new String (buf)); |
| throw new Exception ("Error comparing data: Iter " +i); |
| } |
| } |
| } |
| }; |
| |
| public static void main (String args[]) throws Exception { |
| if (args.length >=1 && args[0].equals ("-d")) { |
| debug = true; |
| } |
| SendDatagramToBadAddress ud = new SendDatagramToBadAddress (); |
| ud.run (); |
| } |
| |
| public void run() throws Exception { |
| |
| if (OSsupportsFeature()) { |
| print ("running on OS that supports ICMP port unreachable"); |
| } |
| String host = "127.0.0.1"; |
| InetAddress addr = InetAddress.getByName(host); |
| DatagramSocket sock = new DatagramSocket(); |
| DatagramSocket serversock = new DatagramSocket(0); |
| DatagramPacket p; |
| byte[] buf; |
| int port = serversock.getLocalPort (); |
| final int loop = 5; |
| Server s = new Server (serversock); |
| int i; |
| |
| print ("Checking send to connected address ..."); |
| sock.connect(addr, port); |
| |
| for (i = 0; i < loop; i++) { |
| try { |
| buf = ("Hello, server"+i).getBytes(); |
| if (i % 2 == 1) |
| p = new DatagramPacket(buf, buf.length, addr, port); |
| else |
| p = new DatagramPacket(buf, buf.length); |
| sock.send(p); |
| } catch (Exception ex) { |
| print ("Got unexpected exception: " + ex); |
| throw new Exception ("Error sending data: "); |
| } |
| } |
| |
| s.receive (loop, false); |
| |
| // check disconnect() works |
| |
| print ("Checking send to non-connected address ..."); |
| sock.disconnect (); |
| buf = ("Hello, server"+0).getBytes(); |
| p = new DatagramPacket(buf, buf.length, addr, port); |
| sock.send (p); |
| s.receive (1, false); |
| |
| // check send() to invalid destination followed by a blocking receive |
| // returns an error |
| |
| print ("Checking send to invalid address ..."); |
| sock.connect(addr, port); |
| serversock.close (); |
| try { |
| sock.setSoTimeout (4000); |
| } catch (Exception e) { |
| print ("could not set timeout"); |
| throw e; |
| } |
| |
| boolean goterror = false; |
| |
| for (i = 0; i < loop; i++) { |
| try { |
| buf = ("Hello, server"+i).getBytes(); |
| p = new DatagramPacket(buf, buf.length, addr, port); |
| sock.send(p); |
| p = new DatagramPacket(buf, buf.length, addr, port); |
| sock.receive (p); |
| } catch (InterruptedIOException ex) { |
| print ("socket timeout"); |
| } catch (Exception ex) { |
| print ("Got expected exception: " + ex); |
| goterror = true; |
| } |
| } |
| |
| if (!goterror && OSsupportsFeature ()) { |
| print ("Didnt get expected exception: "); |
| throw new Exception ("send did not return expected error"); |
| } |
| } |
| } |