dhcp/dhcp/client.scm

64 lines
2.0 KiB
Scheme

;;; GNU Guix DHCP Client.
;;;
;;; Copyright © 2015 Rohan Prinja <rohan.prinja@gmail.com>
;;;
;;; This program is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; This program is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with this program. If not, see <http://www.gnu.org/licenses/>.
#!/usr/local/bin/guile \
-e main -s
coding: utf-8
!#
;; DHCP client module
(define-module (dhcp client)
#:use-module (dhcp dhcp)
#:use-module (ice-9 getopt-long)
#:use-module (dhcp messages)
#:export (main))
(define *help-message* "\
dhcp-client [options]
-v, --version Display version
-h, --help Display this help
")
(define (main args)
"Process command-line arguments and run the client"
(let* ((option-spec '((version (value #f))
(help (single-char #\h))
(four (single-char #\4) (value #t))
(six (single-char #\6))
(verbose)
(release)
(foreground (single-char #\d))
(continue-running (single-char #\w))
(no-wait)
(stop (single-char #\x))
(port (single-char #\p) (value #t))
(server-addr (single-char #\s) (value #t))))
(options (getopt-long args option-spec))
(help-wanted (option-ref options 'help #f))
(version-wanted (option-ref options 'version #f)))
(if (or version-wanted help-wanted)
(begin
(if version-wanted
(display "dhcp-client version 0.1\n"))
(if help-wanted
(display *help-message*)))
(begin
(display "Hello, World!") (newline)))))
;; Seed the random state.
(set! *random-state* (random-state-from-platform))