* // Freed if conn closes normally.
* timeout = tal(conn, struct timeout_timer);
* timeout->conn = conn;
- * timeout->t = conn;
* timer_addrel(&timers, &timeout->t, time_from_sec(5));
* return io_sock_shutdown(conn);
* }
*/
int (*io_poll_override(int (*poll)(struct pollfd *fds, nfds_t nfds, int timeout)))(struct pollfd *, nfds_t, int);
+/**
+ * io_have_fd - do we own this file descriptor?
+ * @fd: the file descriptor.
+ * @listener: if non-NULL, set to true if it's a listening socket (io_listener).
+ *
+ * Returns NULL if we don't own it, otherwise a struct io_conn * or struct io_listener *.
+ */
+const void *io_have_fd(int fd, bool *listener);
+
#endif /* CCAN_IO_H */