blob: 2706bd2ff1eaa42b6420c6b67a51b845b046979f [file] [log] [blame]
Eric Andersen6fd8c662001-02-13 20:04:30 +00001/* vi: set sw=4 ts=4: */
2/*
3 * pivot_root.c - Change root file system. Based on util-linux 2.10s
4 *
5 * busyboxed by Evin Robertson
Eric Andersend160a272001-02-24 19:17:07 +00006 * pivot_root syscall stubbed by Erik Andersen, so it will compile
Eric Andersenc7bda1c2004-03-15 08:29:22 +00007 * regardless of the kernel being used.
Bernhard Reutner-Fischerb1629b12006-05-19 19:29:19 +00008 *
Rob Landleye9a7a622006-09-22 02:52:41 +00009 * Licensed under GPL version 2, see file LICENSE in this tarball for details.
Eric Andersen6fd8c662001-02-13 20:04:30 +000010 */
Eric Andersencbe31da2001-02-20 06:14:08 +000011#include "busybox.h"
Eric Andersen6fd8c662001-02-13 20:04:30 +000012
Eric Andersene76c3b02001-04-05 03:14:39 +000013extern int pivot_root(const char * new_root,const char * put_old);
Eric Andersen6fd8c662001-02-13 20:04:30 +000014
Denis Vlasenko06af2162007-02-03 17:28:39 +000015int pivot_root_main(int argc, char **argv);
Eric Andersen6fd8c662001-02-13 20:04:30 +000016int pivot_root_main(int argc, char **argv)
17{
Denis Vlasenko59839142006-09-10 18:26:51 +000018 if (argc != 3)
19 bb_show_usage();
Eric Andersen6fd8c662001-02-13 20:04:30 +000020
Denis Vlasenkof885c542007-02-06 00:35:36 +000021 if (pivot_root(argv[1], argv[2]) < 0) {
22 /* prints "pivot_root: <strerror text>" */
23 bb_perror_nomsg_and_die();
24 }
Eric Andersen6fd8c662001-02-13 20:04:30 +000025
Denis Vlasenko59839142006-09-10 18:26:51 +000026 return EXIT_SUCCESS;
Eric Andersen6fd8c662001-02-13 20:04:30 +000027}