roundcube (0.3.1-6) disable-dns-prefetch.patch

Disable DNS prefetching to solve CVE-2010-0464.

Index: b/program/include/rcube_html_page.php
===================================================================
--- a/program/include/rcube_html_page.php	2009-06-22 18:20:34.000000000 +0200
+++ b/program/include/rcube_html_page.php	2010-07-17 17:33:25.000000000 +0200
@@ -165,6 +165,13 @@
             $__page_header.= $this->charset . '" />'."\n";
         }
 
+        // add hint to disable DNS prefetching
+        if (!headers_sent()) {
+            header('X-DNS-Prefetch-Control: off');
+        } else {
+            $__page_header.= '<meta http-equiv="x-dns-prefetch-control" content="off" />'."\n";
+        }
+
         // definition of the code to be placed in the document header and footer
         if (is_array($this->script_files['head'])) {
             foreach ($this->script_files['head'] as $file) {