[freenet-cvs] r12951 - trunk/plugins/JSTUN

[t...@freenetproject.org]

Author: toad
Date: 2007-04-25 19:00:34 +0000 (Wed, 25 Apr 2007)
New Revision: 12951

Modified:
   trunk/plugins/JSTUN/JSTUN.java
Log:
Call getMTU() via reflection

Modified: trunk/plugins/JSTUN/JSTUN.java
===================================================================
--- trunk/plugins/JSTUN/JSTUN.java      2007-04-25 18:36:14 UTC (rev 12950)
+++ trunk/plugins/JSTUN/JSTUN.java      2007-04-25 19:00:34 UTC (rev 12951)
@@ -172,8 +172,29 @@
                        DetectedIP[] ip;
                        try {
                                ip = runTest(startAddress);
-                               //int mtu = 
NetworkInterface.getByInetAddress(startAddress).getMTU();
+                               NetworkInterface nif = 
NetworkInterface.getByInetAddress(startAddress);
                                int mtu = Integer.MAX_VALUE;
+                               if(nif != null) {
+                                       try {
+                                               Class c = nif.getClass();
+                                               Method[] methods = 
c.getMethods();
+                                               for(int 
i=0;i<methods.length;i++) {
+                                                       Method m = methods[i];
+                                                       
if(m.getName().equals("getMTU") && m.getParameterTypes().length == 0) {
+                                                               
System.err.println("Found getMTU() method");
+                                                               Integer iMTU = 
(Integer) m.invoke(nif, null);
+                                                               if(iMTU != 
null) {
+                                                                       mtu = 
iMTU.intValue();
+                                                                       break;
+                                                               }
+                                                       }
+                                               }
+                                       } catch (Throwable t) {
+                                               System.err.println("Trying to 
access 1.6 getMTU(), caught "+t);
+                                               t.printStackTrace();
+                                       }
+                               }
+                               //int mtu = .getMTU();
                                for(int i=0;i<ip.length;i++) ip[i].mtu = mtu;
                        } catch (Throwable t) {
                                ip = null;