2 * Mini chroot implementation for busybox
4 * Copyright (C) 1998 by Erik Andersen <andersee@debian.org>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
28 static const char chroot_usage[] = "NEWROOT [COMMAND...]\n"
29 "Run COMMAND with root directory set to NEWROOT.\n";
33 int chroot_main(int argc, char **argv)
35 if ( (argc < 2) || (**(argv+1) == '-') ) {
36 fprintf(stderr, "Usage: %s %s", *argv, chroot_usage);
42 if (chroot (*argv) || (chdir ("/"))) {
43 fprintf(stderr, "chroot: cannot change root directory to %s: %s\n",
44 *argv, strerror(errno));
51 fprintf(stderr, "command: %s\n", *argv);
56 prog = getenv ("SHELL");
59 execlp (prog, prog, NULL);
61 fprintf(stderr, "chroot: cannot execute %s: %s\n",
62 *argv, strerror(errno));