Added tcp-movie exercise

Need to practice sockets more, I have many ideas on what to do with them

tcp-movie/go.mod

@@ -0,0 +1,3 @@
+module tcp-movie
+
+go 1.22.1

tcp-movie/main.go

@@ -0,0 +1,50 @@
+package main
+
+import (
+	"fmt"
+	"net"
+	"os"
+	//"time"
+)
+
+var LISTENING_PORT = 1337
+
+func main() {
+
+	ln, err := net.Listen("tcp", ":1337")
+	catchErr(err)
+	fmt.Println("Listening on port 1337...")
+
+	for {
+		conn, err := ln.Accept()
+		catchErr(err)
+		go handleConn(conn)
+	}
+}
+
+func getIP(conn net.Conn) {
+	if addr, ok := conn.RemoteAddr().(*net.TCPAddr); ok {
+		fmt.Printf("Received connection from: %v\n", addr)
+	}
+}
+
+func handleConn(conn net.Conn) {
+	defer conn.Close()
+
+	getIP(conn)
+	//fmt.Printf("\rWelcome to my server!")
+	//time.Sleep(time.Second)
+	//fmt.Printf("\r")
+	//fmt.Printf("\rWhat, were you expecting something?")
+	conn.Write([]byte("\rWelcome to my server!"))
+}
+
+func catchErr(err error) (errHappened bool) {
+	errHappened = false
+	if err != nil {
+		errHappened = true
+		fmt.Println(err)
+		os.Exit(2)
+	}
+	return errHappened
+}