hush/pivot_root.c
Eric Andersen 67991cf824 This patch, put together by Manuel Novoa III, is a merge of work
done by Evin Robertson (bug#1105) and work from Manuel to make
usage messages occupy less space and simplify how usage messages
are displayed.
2001-02-14 21:23:06 +00:00

40 lines
710 B
C

/* vi: set sw=4 ts=4: */
/*
* pivot_root.c - Change root file system. Based on util-linux 2.10s
*
* busyboxed by Evin Robertson
*/
#include "busybox.h"
#include <stdlib.h>
#include <stdio.h>
#include <sys/syscall.h>
#include <linux/unistd.h>
#ifndef __NR_pivot_root
#error Sorry, but this kernel does not support the pivot_root syscall
#endif
static _syscall2(int,pivot_root,const char *,new_root,const char *,put_old)
int pivot_root_main(int argc, char **argv)
{
if (argc != 3)
show_usage();
if (pivot_root(argv[1],argv[2]) < 0)
perror_msg_and_die("pivot_root");
return EXIT_SUCCESS;
}
/*
Local Variables:
c-file-style: "linux"
c-basic-offset: 4
tab-width: 4
End:
*/