added whitelist functionality

main.js

@@ -1,5 +1,10 @@
+const whitelist = [
+    "127.0.0.1"
+]
+
 const net = require("net")
 const {exec} = require("child_process");
+const { ReadableStreamDefaultController } = require("node:stream/web");
 const portlist = [21,1433]
 const host = "0.0.0.0";
 var ipSet = new Set()
@@ -14,6 +19,9 @@ portlist.forEach(i => {
     })
     // defining connection event
     server.on("connection", a => {
+        // if the ip is in the whitelist, ignore the connection (this is to prevent manually crafted packets to)
+        if(whitelist.includes(a.remoteAddress)) return
+
         console.log(`incomming connection from : ${a.remoteAddress} on port ${i}`)
         // handle error even on socket instance (prevents the econnreset error)
         a.on("error", () => {})