websocketd.go

package main

import (
	"flag"
	"fmt"
	"net/http"
	"os"
	"os/exec"

	"golang.org/x/net/websocket"
)

func main() {
	addr := flag.String("addr", ":8080", "Specify the address to listen on")
	flag.Parse()
	args := flag.Args()
	if len(args) == 0 {
		fmt.Fprintf(os.Stderr, "Must specify command to run\n")
		os.Exit(2)
	}
	h := func(ws *websocket.Conn) {
		cmd := exec.Command(args[0], args[1:]...)
		cmd.Stdout = ws
		cmd.Stderr = ws
		cmd.Stdin = ws
		cmd.Run()
	}
	http.ListenAndServe(*addr, websocket.Handler(h))
}