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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix 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.
;;;
;;; GNU Guix 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 GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (gnu system shadow)
#:use-module (guix store)
#:use-module (ice-9 match)
#:export (passwd-file))
;;; Commentary:
;;;
;;; Utilities for configuring the Shadow tool suite ('login', 'passwd', etc.)
;;;
;;; Code:
(define* (passwd-file store accounts #:key shadow?)
"Return a password file for ACCOUNTS, a list of vectors as returned by
'getpwnam'. If SHADOW? is true, then it is a /etc/shadow file, otherwise it
is a /etc/passwd file."
;; XXX: The resulting file is world-readable, so beware when SHADOW? is #t!
(define contents
(let loop ((accounts accounts)
(result '()))
(match accounts
((#(name pass uid gid comment home-dir shell) rest ...)
(loop rest
(cons (if shadow?
(string-append name
":" ; XXX: use (crypt PASS …)?
":::::::")
(string-append name
":" "x"
":" (number->string uid)
":" (number->string gid)
":" comment ":" home-dir ":" shell))
result)))
(()
(string-join (reverse result) "\n" 'suffix)))))
(add-text-to-store store (if shadow? "shadow" "passwd")
contents '()))
;;; shadow.scm ends here
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