;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2021 Brice Waegeneire <brice@waegenei.re>
;;; Copyright © 2022 Tobias Geerinckx-Rice <me@tobias.gr>
;;;
;;; 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 setuid)
  #:use-module (gnu system privilege)
  #:use-module (ice-9 match)
  #:use-module (srfi srfi-1)
  #:re-export (file-like->setuid-program)
  #:export (setuid-program
            setuid-program?
            setuid-program-program
            setuid-program-setuid?
            setuid-program-setgid?
            setuid-program-user
            setuid-program-group))

;;; Commentary:
;;;
;;; Do not use this module in new code.  It used to define data structures
;;; representing setuid/setgid programs, but is now a mere compatibility shim
;;; wrapping a subset of (gnu system privilege).
;;;
;;; Code:

(define-syntax setuid-program
  (lambda (fields)
    (syntax-case fields ()
      ((_ (field value) ...)
       #`(privileged-program
          (setuid? (match (assoc-ref '((field value) ...) 'setuid?)
                     ((#f) #f)
                     (_ #t)))
          #,@(remove (match-lambda ((f _) (eq? (syntax->datum f) 'setuid?)))
                     #'((field value) ...)))))))

(define setuid-program?        privileged-program?)
(define setuid-program-program privileged-program-program)
(define setuid-program-setuid? privileged-program-setuid?)
(define setuid-program-setgid? privileged-program-setgid?)
(define setuid-program-user    privileged-program-user)
(define setuid-program-group   privileged-program-group)
7f1247b997558131b2'>tests</a>/<a href='/guix/log/tests/guix-time-machine.sh?id=c3d8f39b5b0abc8f73f86c7f1247b997558131b2'>guix-time-machine.sh</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/tests/guix-time-machine.sh?id=c3d8f39b5b0abc8f73f86c7f1247b997558131b2&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2023-11-05 23:23:23 +0100'>2023-11-05</span></td><td><a href='/guix/commit/tests/guix-time-machine.sh?id=9f05fbb67d0de4d577c21a6fb6888cb6be67cd12'>tests: Make ‘guix time-machine’ test effective.</a><span class='msg-avail'>...<span class='msg-tooltip'>The test as added in 79ec651a286c71a3d4c72be33a1f80e76a560031 had no
effect: first because ‘guix time-machine --commit=X’, not followed by a
command, does nothing, and second because the “! COMMAND” shell stanza
does not have the desired effect (see &lt;https://issues.guix.gnu.org/62406&gt;).

This change rewrites the test to make it effective.

* tests/guix-time-machine.sh: Rewrite.

Change-Id: Ib44a11331c8625e346139a236cffa699cdbd02f2
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2023-08-16 21:34:13 -0400'>2023-08-16</span></td><td><a href='/guix/commit/tests/guix-time-machine.sh?id=79ec651a286c71a3d4c72be33a1f80e76a560031'>scripts: time-machine: Error when attempting to visit too old commits.</a><span class='msg-avail'>...<span class='msg-tooltip'>* doc/guix.texi (Invoking guix time-machine): Document limitation.
* guix/inferior.scm (cached-channel-instance): New VALIDATE-CHANNELS
argument.  Use it to validate channels when there are no cache hit.
* guix/scripts/time-machine.scm
(%options): Tag the given reference with 'tag-or-commit instead of 'commit.
(%oldest-possible-commit): New variable.
(guix-time-machine) &lt;validate-guix-channel&gt;: New nested procedure.  Pass it to
the 'cached-channel-instance' call.
* tests/guix-time-machine.sh: New test.
* Makefile.am (SH_TESTS): Register it.

Suggested-by: Simon Tournier &lt;zimon.toutoune@gmail.com&gt;
Reviewed-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
Reviewed-by: Simon Tournier &lt;zimon.toutoune@gmail.com&gt;
</span></span></td><td>Maxim Cournoyer</td></tr>