1 files changed, 9 insertions, 3 deletions
diff --git a/src/core/or/port_cfg_st.h b/src/core/or/port_cfg_st.h
index b67091ce32..f8ff6f8cc8 100644
--- a/src/core/or/port_cfg_st.h
+++ b/src/core/or/port_cfg_st.h
@@ -1,9 +1,14 @@
 /* Copyright (c) 2001 Matej Pfajfar.
  * Copyright (c) 2001-2004, Roger Dingledine.
  * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
- * Copyright (c) 2007-2019, The Tor Project, Inc. */
+ * Copyright (c) 2007-2020, The Tor Project, Inc. */
 /* See LICENSE for licensing information */
 
+/**
+ * @file port_cfg_st.h
+ * @brief Listener port configuration structure.
+ **/
+
 #ifndef PORT_CFG_ST_H
 #define PORT_CFG_ST_H
 
@@ -21,6 +26,8 @@ struct port_cfg_t {
   unsigned is_group_writable : 1;
   unsigned is_world_writable : 1;
   unsigned relax_dirmode_check : 1;
+  unsigned explicit_addr : 1; /** Indicate if address was explicitly set or
+                               * we are using the default address. */
 
   entry_port_cfg_t entry_cfg;
 
@@ -31,5 +38,4 @@ struct port_cfg_t {
   char unix_addr[FLEXIBLE_ARRAY_MEMBER];
 };
 
-#endif
-
+#endif /* !defined(PORT_CFG_ST_H) */