add and use der_{malloc,free}

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@22426 ec53bebd-3082-4978-b11e-865c3cabbd6b

lib/asn1/der.c

@@ -140,3 +140,15 @@ der_get_tag_num(const char *name)
 {
     return get_type(name, tag_names, SIZEOF_ARRAY(tag_names));
 }
+
+void
+der_free(void *ptr)
+{
+    free(ptr);
+}
+
+void *
+der_malloc(size_t size)
+{
+    return malloc(size);
+}