blob: f7228a61ae4ef904d86a30e1aa63b58b35d6089b [file] [log] [blame]
/* vi: set sw=4 ts=4: */
/*
* Mini chroot implementation for busybox
*
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
/* BB_AUDIT SUSv3 N/A -- Matches GNU behavior. */
#include "libbb.h"
int chroot_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int chroot_main(int argc UNUSED_PARAM, char **argv)
{
++argv;
if (!*argv)
bb_show_usage();
xchroot(*argv);
xchdir("/");
++argv;
if (!*argv) { /* no 2nd param (PROG), use shell */
argv -= 2;
argv[0] = getenv("SHELL");
if (!argv[0]) {
argv[0] = (char *) DEFAULT_SHELL;
}
argv[1] = (char *) "-i";
}
BB_EXECVP(*argv, argv);
bb_perror_msg_and_die("can't execute '%s'", *argv);
}