--- a/common/util.h	Tue Apr 29 15:26:02 2014 +0200
+++ b/common/util.h	Tue Apr 29 15:26:43 2014 +0200
@@ -12,6 +12,10 @@
  */
 #include <stdbool.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**@brief Check if the current process is running with elevated privileges.
  *
  * Elevates the current process token to check if it is marked as elevated.
@@ -20,4 +24,17 @@
  * @returns true if the current process is elevated.*/
 bool is_elevated();
 
+/**@brief Check if the user is in the administrators group.
+ *
+ * The function checks if the account that startet this process
+ * belongs to a user that is a member of the Administrators group.
+ *
+ * @returns True if the user is in the admin group. False otherwise or on error.
+ */
+bool is_admin();
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif // COMMON_UTIL_H