ubase/pivot_root.c

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/* See LICENSE file for copyright and license details. */
#include <sys/syscall.h>
#include <unistd.h>
#include <stdio.h>
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#include <stdlib.h>
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#include "util.h"
static void
usage(void)
{
eprintf("usage: %s new-root put-old\n", argv0);
}
int
main(int argc, char *argv[])
{
ARGBEGIN {
default:
usage();
} ARGEND;
if (argc < 2)
usage();
if (syscall(SYS_pivot_root, argv[0], argv[1]) < 0)
eprintf("pivot_root:");
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return EXIT_SUCCESS;
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}