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;;; Consfigurator -- Lisp declarative configuration management system
;;; Copyright (C) 2021 Sean Whitton <spwhitton@spwhitton.name>
;;; This file 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, or (at your option)
;;; any later version.
;;; This file 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/>.
(in-package :consfigurator.connection.chroot.fork)
(named-readtables:in-readtable :consfigurator)
#+sbcl (eval-when (:compile-toplevel :load-toplevel :execute)
(require "sb-posix"))
(defun chroot (path)
#+sbcl (sb-posix:chroot path)
#-(or sbcl) (foreign-funcall "chroot" :string path :int))
(defmethod establish-connection ((type (eql :chroot.fork)) remaining &key into)
(informat 1 "~&Forking into chroot at ~A" into)
(with-fork-connection (remaining)
(unless (zerop (chroot into))
(error "chroot(2) failed; are you root?"))
;; chdir, else our current working directory is a pointer to something
;; outside the chroot
(uiop:chdir "/")))
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