1 /* vi: set sw=4 ts=4: */
3 * Mini chroot implementation for busybox
6 * Copyright (C) 1999,2000 by Lineo, inc.
7 * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
31 static const char chroot_usage[] = "chroot NEWROOT [COMMAND...]\n\n"
33 "Run COMMAND with root directory set to NEWROOT.\n";
37 int chroot_main(int argc, char **argv)
39 if ((argc < 2) || (**(argv + 1) == '-')) {
45 if (chroot(*argv) || (chdir("/"))) {
46 fprintf(stderr, "chroot: cannot change root directory to %s: %s\n",
47 *argv, strerror(errno));
54 fprintf(stderr, "command: %s\n", *argv);
59 prog = getenv("SHELL");
62 execlp(prog, prog, NULL);
64 fprintf(stderr, "chroot: cannot execute %s: %s\n",
65 *argv, strerror(errno));