diff --git a/contrib/updatecheck/index.php b/contrib/updatecheck/index.php
index 3be24e92..9a0105a6 100644
--- a/contrib/updatecheck/index.php
+++ b/contrib/updatecheck/index.php
@@ -1,56 +1,11 @@
 <?php
 $agent = $_SERVER['HTTP_USER_AGENT'];
 if (substr($agent, 0, 5)==='ebusd') {
+  require_once('prepend.inc');
   $r = @file_get_contents('php://input');
-  $v = @file_get_contents('versions.txt');
-  $versions = array();
-  if ($v) {
-    $v = explode("\n", $v);
-    $func = function($val, $k) {
-      global $versions;
-      $val = explode('=', $val);
-      if (count($val)>1) {
-        $versions[$val[0]] = explode(',', $val[1]);
-      }
-    };
-    array_walk($v, $func);
-  }
   header('Content-Type: text/plain');
-  $ret = 'unknown';
   $r = @json_decode($r, true);
-  if (!$r || !isset($r['v']) || !isset($r['r'])) {
-    $ret = 'invalid request';
-  } else {
-    if (isset($versions['ebusd'])) {
-      if ($r['v']==$versions['ebusd'][0] && $r['r']==$versions['ebusd'][1]) {
-        $ret = 'OK';
-      } else if ($r['v']==$versions['ebusd'][0]) {
-        $ret = 'revision '.$versions['ebusd'][1].' available';
-      } else {
-        $ret = 'version '.$versions['ebusd'][0].' available';
-      }
-    }
-    $configs = '';
-    $neweravail = 0;
-    $func = function($val, $k) {
-      global $versions, $configs, $neweravail;
-      $v = $versions[$k];
-      if ($v) {
-        $newer = $v[2]>$val['t'];
-        if ($newer || $v[0]!=$val['h'] || $v[1]!=$val['s']) {
-          if ($newer) $neweravail++;
-          $configs .= ', '.$k.': '.($newer?'newer':'different').' version available';
-        }
-      }
-    };
-    array_walk($r['l'], $func);
-    if (strlen($configs)>100) {
-      $ret .= ($neweravail?$neweravail.', newer ':', different').' configuration files available';
-    } else {
-       $ret .= $configs;
-     }
-  }
-  echo $ret;
+  echo checkUpdate(@$r['v'], @$r['r'], @$r['l']);
   exit;
 }
 header('HTTP/1.1 404 Not Found');
diff --git a/contrib/updatecheck/prepend.inc b/contrib/updatecheck/prepend.inc
new file mode 100644
index 00000000..58dfc4c4
--- /dev/null
+++ b/contrib/updatecheck/prepend.inc
@@ -0,0 +1,47 @@
+<?php
+$v = @file_get_contents('versions.txt');
+$versions = array();
+if ($v) {
+  $v = explode("\n", $v);
+  $func = function($val, $k) {
+    global $versions;
+    $val = explode('=', $val);
+    if (count($val)>1) {
+      $versions[$val[0]] = explode(',', $val[1]);
+    }
+  };
+  array_walk($v, $func);
+}
+function checkUpdate($ebusdVersion, $ebusdRelease, $loadedFiles) {
+  if (!$ebusdVersion || !$loadedFiles) {
+    return 'invalid request';
+  }
+  global $versions;
+  $ret = 'unknown';
+  if ($ebusdVersion==$versions['ebusd'][0] && $ebusdRelease==$versions['ebusd'][1]) {
+    $ret = 'OK';
+  } else if ($ebusdVersion==$versions['ebusd'][0]) {
+    $ret = 'revision '.$versions['ebusd'][1].' available';
+  } else {
+    $ret = 'version '.$versions['ebusd'][0].' available';
+  }
+  $newerAvailable = 0;
+  $configs = '';
+  foreach ($loadedFiles as $k => $val) {
+    $v = $versions[$k];
+    if ($v) {
+      $newer = $v[2]>$val['t'];
+      if ($newer || $v[0]!=$val['h'] || $v[1]!=$val['s']) {
+        if ($newer) {
+          $newerAvailable++;
+        }
+        $configs .= ', '.$k.': '.($newer?'newer':'different').' version available';
+      }
+    }
+  }
+  if (strlen($configs)>100) {
+    return $ret.($newerAvailable?', '.$newerAvailable.' newer':', different').' configuration files available';
+  }
+  return $ret.$configs;
+}
+?>