chroot/test/example.js

Safely chroot the current process and drop privileges

/**
 * Copyright (c) 2014, 2015 Tim Kuijsten
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

'use strict';

var net = require('net');
var chroot = require('../index');

var server = net.createServer();
server.listen(81, function(err) {
  if (err) { throw err; }

  try {
    chroot('/var/empty', 'nobody');
    console.log('changed root to "/var/empty" and user to "nobody"');
  } catch(err) {
    console.error('changing root or user failed', err);
    process.exit(1);
  }
});