dns-packet/classes.js

An abstract-encoding compliant module for encoding / decoding DNS packets

'use strict'

exports.toString = function (klass) {
  switch (klass) {
    case 1: return 'IN'
    case 2: return 'CS'
    case 3: return 'CH'
    case 4: return 'HS'
    case 255: return 'ANY'
  }
  return 'UNKNOWN_' + klass
}

exports.toClass = function (name) {
  switch (name.toUpperCase()) {
    case 'IN': return 1
    case 'CS': return 2
    case 'CH': return 3
    case 'HS': return 4
    case 'ANY': return 255
  }
  return 0
}