var util = require('util'); var net = require("net"); process.on("uncaughtException", function(e) { console.log(e); }); if (process.argv.length != 5) { console.log("引数が正しく入力されていません:" +　" proxy_port target_host target_port"); console.log("node scriptfile 3000 www.google.com 80"); process.exit(); } var proxyPort = process.argv[2]; var targetHost = process.argv[3]; var targetPort = process.argv[4]; n