1 files changed, 3 insertions, 0 deletions
diff --git a/common.c b/common.c
index f76554d..43e53b9 100644
--- a/common.c
+++ b/common.c
@@ -41,6 +41,9 @@
 		return 0;                                                              \
 	BLOCK_END
 
+#define CONTAINER_OF(pointer, type, member) \
+	(type *) ((char *) pointer - offsetof (type, member))
+
 // --- To be moved to liberty --------------------------------------------------
 
 static void