Connects two outgoing connections

forward.go

package main

import (
	"fmt"
	"io"
	"net"
	"os"
)

func main() {
	if len(os.Args) != 3 {
		fmt.Println("proxy src dst")
		os.Exit(1)
	}

	fmt.Println("Connecting to ", os.Args[1])
	conn2, err := net.Dial("tcp", os.Args[1])
	if err != nil {
		fmt.Println(err)
		os.Exit(1)
	}

	fmt.Println("Connected to ", os.Args[1])

	fmt.Println("Connecting to ", os.Args[2])
	conn, err := net.Dial("tcp", os.Args[2])
	if err != nil {
		fmt.Println(err)
		os.Exit(1)
	}

	fmt.Println("Connected to ", os.Args[2])

	go io.Copy(conn2, conn)
	io.Copy(conn, io.TeeReader(conn2, os.Stdout))
}