#define CONTAINER_OF(POINTER, STRUCT, MEMBER) \
((STRUCT *) (void *) ((char *) (POINTER) - offsetof (STRUCT, MEMBER)))
+/* Given POINTER, the address of the given MEMBER within an object of the type
+ * that that OBJECT points to, returns OBJECT as a "void *" pointer. OBJECT
+ * must be an lvalue.
+ *
+ * This is the same as CONTAINER_OF except that it infers the structure type
+ * from the type of '*OBJECT'. */
+#define OBJECT_CONTAINING(POINTER, OBJECT, MEMBER) \
+ ((void *) ((char *) (POINTER) \
+ - ((char *) &(OBJECT)->MEMBER - (char *) (OBJECT))))
+
#ifdef __cplusplus
extern "C" {
#endif
char *get_cwd(void);
char *dir_name(const char *file_name);
+char *base_name(const char *file_name);
char *abs_file_name(const char *dir, const char *file_name);
void ignore(bool x OVS_UNUSED);