From fe6fec12bc6b03d1ed88c61bd3e2b4da62bdaf5b Mon Sep 17 00:00:00 2001
From: Gary Spencer <gary.spencer@alfresco.com>
Date: Thu, 6 Apr 2006 08:50:45 +0000
Subject: [PATCH] Added code to detect if running on 64bit Windows to the 
 Win32NetBIOS static initializer method and load the appropriate DLL. Added
 the X64 utility class, currently just has a method for detecting 64bit
 Windows.

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@2627 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
---
 .../filesys/netbios/win32/Win32NetBIOS.java   | 13 +++-
 .../java/org/alfresco/filesys/util/X64.java   | 66 +++++++++++++++++++
 2 files changed, 77 insertions(+), 2 deletions(-)
 create mode 100644 source/java/org/alfresco/filesys/util/X64.java

diff --git a/source/java/org/alfresco/filesys/netbios/win32/Win32NetBIOS.java b/source/java/org/alfresco/filesys/netbios/win32/Win32NetBIOS.java
index eec3c4b8f0..a356facc04 100644
--- a/source/java/org/alfresco/filesys/netbios/win32/Win32NetBIOS.java
+++ b/source/java/org/alfresco/filesys/netbios/win32/Win32NetBIOS.java
@@ -25,6 +25,7 @@ import java.util.Hashtable;
 import org.alfresco.filesys.netbios.NetBIOSName;
 import org.alfresco.filesys.util.DataBuffer;
 import org.alfresco.filesys.util.IPAddress;
+import org.alfresco.filesys.util.X64;
 
 /**
  * Win32 NetBIOS Native Call Wrapper Class
@@ -696,15 +697,23 @@ public class Win32NetBIOS
      */
     static
     {
-
+        // Check if we are running under 64 bit Windows
+        
+        String dllName = "Win32NetBIOS";
+        
+        if ( X64.isWindows64())
+            dllName = "Win32NetBIOSx64";
+        
         // Load the Win32 NetBIOS interface library
 
         try
         {
-            System.loadLibrary("Win32NetBIOS");
+            System.loadLibrary( dllName);
         }
         catch (Throwable ex)
         {
+            ex.printStackTrace();
+            
             // Save the native code load exception
 
             m_loadDLLException = ex;
diff --git a/source/java/org/alfresco/filesys/util/X64.java b/source/java/org/alfresco/filesys/util/X64.java
new file mode 100644
index 0000000000..7fb4af9e0b
--- /dev/null
+++ b/source/java/org/alfresco/filesys/util/X64.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2005 Alfresco, Inc.
+ *
+ * Licensed under the Mozilla Public License version 1.1 
+ * with a permitted attribution clause. You may obtain a
+ * copy of the License at
+ *
+ *   http://www.alfresco.org/legal/license.txt
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific
+ * language governing permissions and limitations under the
+ * License.
+ */
+
+package org.alfresco.filesys.util;
+
+import java.util.Properties;
+
+/**
+ * X64 Class
+ * 
+ * <p>Check if the platform is a 64bit operating system.
+ * 
+ * @author gkspencer
+ */
+public class X64
+{
+    /**
+     * Check if we are running on a Windows 64bit system
+     * 
+     * @return boolean
+     */
+    public static boolean isWindows64()
+    {
+        // Check for Windows
+        
+        String prop = System.getProperty("os.name");
+        if ( prop == null || prop.startsWith("Windows") == false)
+            return false;
+
+        // Check the OS architecture
+        
+        prop = System.getProperty("os.arch");
+        if ( prop != null && prop.equalsIgnoreCase("amd64"))
+            return true;
+        
+        // Check the VM name
+        
+        prop = System.getProperty("java.vm.name");
+        if ( prop != null && prop.indexOf("64-Bit") != -1)
+            return true;
+
+        // Check the data model
+        
+        prop = System.getProperty("sun.arch.data.model");
+        if ( prop != null && prop.equals("64"))
+            return true;
+        
+        // Not 64 bit Windows
+        
+        return false;
+    }
+}