1 files changed, 2 insertions, 0 deletions
diff --git a/lib/mqueue.h b/lib/mqueue.h
index 32ac599e..b1332e68 100644
--- a/lib/mqueue.h
+++ b/lib/mqueue.h
@@ -96,6 +96,8 @@ struct args
   char data[mqb_args_size_max] ;        /* empty space                  */
 } ;
 
+#define MQB_ARGS_SIZE_OK(s) CONFIRM(sizeof(struct s) <= mqb_args_size_max)
+
 struct mqueue_block
 {
   struct args     args ;                /* user structure               */