54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Mini chroot implementation for busybox
|
|
*
|
|
* Copyright (C) 1999-2003 by Erik Andersen <andersen@codepoet.org>
|
|
*
|
|
* This program 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 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
/* BB_AUDIT SUSv3 N/A -- Matches GNU behavior. */
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
#include "busybox.h"
|
|
|
|
int chroot_main(int argc, char **argv)
|
|
{
|
|
if (argc < 2) {
|
|
bb_show_usage();
|
|
}
|
|
|
|
++argv;
|
|
if (chroot(*argv) || (chdir("/"))) {
|
|
bb_perror_msg_and_die("cannot change root directory to %s", *argv);
|
|
}
|
|
|
|
++argv;
|
|
if (argc == 2) {
|
|
argv -= 2;
|
|
if (!(*argv = getenv("SHELL"))) {
|
|
*argv = (char *) DEFAULT_SHELL;
|
|
}
|
|
argv[1] = (char *) "-i";
|
|
}
|
|
|
|
execvp(*argv, argv);
|
|
bb_perror_msg_and_die("cannot execute %s", *argv);
|
|
}
|