diff --git a/src/stubser/cfile.c b/src/stubser/cfile.c
index b04ecb3..f18ea34 100644
--- a/src/stubser/cfile.c
+++ b/src/stubser/cfile.c
@@ -97,3 +97,35 @@ void cfile_print(cfile_t *aCfile)
 
    cfunction_printList(&aCfile->functions);
 }
+
+/*!
+ * @brief Checks if at least one function uses a variable parameter list
+ * @retval -2 Null pointer parameter
+ * @retval -1 Has no va_list
+ * @retval 0 At least on va_list
+ */
+int8_t cfile_hasVaList(cfile_t *aFile)
+{
+   cfunction_t *function = aFile->functions.head;
+   cfunction_parameterList_t *paraList = NULL;
+   cfunction_parameter_t *parameter;
+   if (NULL == aFile)
+   {
+      return -2;
+   }
+   while(function)
+   {
+      paraList = &function->parameter;
+      parameter = paraList->head;
+      while(parameter)
+      {
+         if (CPARAMETER_TYPE_VARIABLE == parameter->type)
+         {
+            return 0;
+         }
+         parameter = parameter->next;
+      }
+      function = function->next;
+   }
+   return -1;
+}
diff --git a/src/stubser/cfile_if.h b/src/stubser/cfile_if.h
index 6a34fe1..3b8a90c 100644
--- a/src/stubser/cfile_if.h
+++ b/src/stubser/cfile_if.h
@@ -70,5 +70,6 @@ cfile_variable_t* cfile_newVariable(cfile_variableList_t *aList);
 int8_t cfile_freeVariables(cfile_variableList_t *aVariable);
 void cfile_free(cfile_t *aCfile);
 void cfile_print(cfile_t *aCfile);
+int8_t cfile_hasVaList(cfile_t *aFile);
 
 #endif /* STUBSER_CFILE_IF_H_ */