package main

import (
	"io"
	"log"
	"os"
	"os/exec"

	"golang.org/x/crypto/ssh/terminal"

	"github.com/kr/pty"
)

func main() {
	stdin := os.Stdin
	stdout := os.Stdout

	os.Stdin = nil
	os.Stdout = nil
	// os.Stderr = nil

	bash := exec.Command("/bin/bash")

	// Allocate a terminal for this channel
	t, err := pty.Start(bash)
	if err != nil {
		log.Fatalf("Could not start pty (%s)\n", err)
	}

	_, err = terminal.MakeRaw(int(stdin.Fd()))
	if err != nil {
		log.Fatalln(err)
	}

	go func() {
		if _, err := io.Copy(stdout, t); err != nil {
			log.Fatalln(err)
		}
	}()

	if _, err := io.Copy(t, stdin); err != nil {
		log.Fatalln(err)
	}
}