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