(c-system-include "sys/types.h")
(c-system-include "time.h")
(c-system-include "unistd.h")

(define-c input-port (open-input-fd fdopen) (int (value "r")))
(define-c output-port (open-output-fd fdopen) (int (value "w")))

(define-c errno (delete-file unlink) (string))
(define-c errno (link-file link) (string string))
(define-c errno (symbolic-link-file symlink) (string string))
(define-c errno (rename-file rename) (string string))

(define-c errno (create-directory mkdir) (string int))
(define-c errno (delete-directory rmdir) (string))

(define-c int (duplicate-fd dup) (int))
;;(define-c errno pipe ((array int 2)))

(define-c time_t (current-seconds time) ((value NULL)))