summaryrefslogtreecommitdiffhomepage
path: root/util-linux/pivot_root.c
blob: 2706bd2ff1eaa42b6420c6b67a51b845b046979f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
/* vi: set sw=4 ts=4: */
/*
 * pivot_root.c - Change root file system.  Based on util-linux 2.10s
 *
 * busyboxed by Evin Robertson
 * pivot_root syscall stubbed by Erik Andersen, so it will compile
 *     regardless of the kernel being used.
 *
 * Licensed under GPL version 2, see file LICENSE in this tarball for details.
 */
#include "busybox.h"

extern int pivot_root(const char * new_root,const char * put_old);

int pivot_root_main(int argc, char **argv);
int pivot_root_main(int argc, char **argv)
{
	if (argc != 3)
		bb_show_usage();

	if (pivot_root(argv[1], argv[2]) < 0) {
		/* prints "pivot_root: <strerror text>" */
		bb_perror_nomsg_and_die();
	}

	return EXIT_SUCCESS;
}