+int get_user_reservations(struct query *q, char **argv, client *cl,
+ int (*action)(int, char *[], void *), void *actarg);
+int get_user_by_reservation(struct query *q, char **argv, client *cl,
+ int (*action)(int, char *[], void *),
+ void *actarg);
+int get_machines_of_container(struct query *q, char **argv, client *cl,
+ int (*action)(int, char *[], void *),
+ void *actarg);
+int get_subcontainers_of_container(struct query *q, char **argv, client *cl,
+ int (*action)(int, char *[], void *),
+ void *actarg);
+