+/**
+ * list_check_node - check node of a list for consistency
+ * @n: the list_node
+ * @abortstr: the location to print on aborting, or NULL.
+ *
+ * Check consistency of the list node is in (it must be in one).
+ *
+ * See also: list_check()
+ *
+ * Example:
+ * static void dump_child(const struct child *c)
+ * {
+ * list_check_node(&c->list, "bad child list");
+ * printf("%s\n", c->name);
+ * }
+ */
+struct list_node *list_check_node(const struct list_node *n,
+ const char *abortstr);
+