dns host pack

readme.md

use to find the --hex-string value for the first iptables rule from http://dev.kryo.se/iodine/wiki/TipsAndTricks

usage: node hostpack.js tunnel.blah.com

hostpack.js

function enc(s) {
	if (!s) throw new Error('need hostname')
	if (s.slice(-1) != '.') s += '.'
	var r = Buffer(s.length + 1)
	s = s.split('.')
	var cc = 0
	for (var i = 0; i < s.length; i++) {
		r.writeUInt8(s[i].length, cc)
		cc++
		r.write(s[i], cc)
		cc += s[i].length
	}
	return r.toString('hex')
}

console.log(enc(process.argv[2]))