refclock: warn if lock refid is invalid

Log a warning message if the specified lock refid doesn't match any
existing refclock or it matches the refclock which has the lock option
itself.

diff --git a/refclock.c b/refclock.c
index 5cc2ca26590420132713ffe941eb402f30bf47d2..fcf7d596976142385b4592eb02e8b2376aae3198 100644 (file)
--- a/refclock.c
+++ b/refclock.c
@@ -296,6 +296,9 @@ RCL_StartRefclocks(void)
         lock_index = j;
         break;
       }
+
+      if (lock_index == -1 || lock_index == i)
+        LOG(LOGS_WARN, "Invalid lock refid %s", UTI_RefidToString(inst->lock_ref));
     }
 
     inst->lock_ref = lock_index;