#define RERR_FILESELECT 3 /* errors selecting input/output files, dirs */
#define RERR_UNSUPPORTED 4 /* requested action not supported */
#define RERR_STARTCLIENT 5 /* error starting client-server protocol */
+#define RERR_LOG_FAILURE 6 /* daemon unable to append to log-file */
#define RERR_SOCKETIO 10 /* error in socket IO */
#define RERR_FILEIO 11 /* error in file IO */