* MailPacket class: read() and write() with event emits

* FTNMailPacket WIP derived from MailPacket

core/mail_packet.js

@@ -0,0 +1,36 @@
+/* jslint node: true */
+'use strict';
+
+var events			= require('events');
+var assert			= require('assert');
+var _				= require('lodash');
+
+module.exports = MailPacket;
+
+function MailPacket(options) {
+	events.EventEmitter.call(this);
+
+	//	map of network name -> address obj ( { zone, net, node, point, domain } )
+	this.nodeAddresses = options.nodeAddresses || {};
+}
+
+require('util').inherits(MailPacket, events.EventEmitter);
+
+MailPacket.prototype.read = function(options) {
+	//
+	//	options.packetPath | opts.packetBuffer: supplies a path-to-file
+	//	or a buffer containing packet data
+	//
+	//	emits 'message' event per message read
+	//
+	assert(_.isString(options.packetPath) || Buffer.isBuffer(options.packetBuffer));
+};
+
+MailPacket.prototype.write = function(options) {
+	//
+	//	options.messages[]: array of message(s) to create packets from
+	//
+	//	emits 'packet' event per packet constructed
+	//
+	assert(_.isArray(options.messages));
+}