+extern unsigned short compare_string_array(const char *string_array[], const char *key);
+
+extern int my_query_module(const char *name, int which, void **buf, size_t *bufsize, size_t *ret);
+
+typedef struct llist_s {
+ char *data;
+ struct llist_s *link;
+} llist_t;
+extern llist_t *llist_add_to(llist_t *old_head, char *new_item);