dns-suite.js/node_modules/native-dns/lib/packet.js

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2017-01-14 02:04:27 +00:00
// Copyright 2011 Timothy J Fontaine <tjfontaine@gmail.com>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the 'Software'), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE
'use strict';
var NDP = require('native-dns-packet'),
util = require('util');
var Packet = module.exports = function(socket) {
NDP.call(this);
this.address = undefined;
this._socket = socket;
};
util.inherits(Packet, NDP);
Packet.prototype.send = function() {
var buff, len, size;
if (typeof(this.edns_version) !== 'undefined') {
size = 4096;
}
this.payload = size = size || this._socket.base_size;
buff = this._socket.buffer(size);
len = Packet.write(buff, this);
this._socket.send(len);
};
Packet.parse = function (msg, socket) {
var p = NDP.parse(msg);
p._socket = socket;
return p;
};
Packet.write = NDP.write;