/*	Simple static web server for UNIX files.*/package main import (	"clive/cmd"	"clive/cmd/opt"	"net/http") var (	dir   = "/zx/usr/web"	port  = "8080"	tport = "8083"	opts  = opt.New("[dir]")) func main() {	cmd.UnixIO()	local := false	opts.NewFlag("p", "port: port used (8080 by default)", &port)	opts.NewFlag("t", "port: TLS port (8083 by default)", &tport)	opts.NewFlag("l", "localhost and TLS only", &local)	args := opts.Parse()	switch len(args) {	case 0:		if local {			dir = "/zx"		}	case 1:		dir = args[0]	default:		cmd.Warn("too many arguments")		opts.Usage()	}	cert := "/zx/lib/webcert.pem"	key := "/zx/lib/webcert.key"	addr := ":"	go func() {		err := http.ListenAndServeTLS(addr+tport, cert, key, http.FileServer(http.Dir(dir)))		if err != nil {			cmd.Fatal(err)		}	}()	go func() {		if local {			return		}		err := http.ListenAndServe(addr+port, http.FileServer(http.Dir(dir)))		if err != nil {			cmd.Fatal(err)		}	}()	c := make(chan bool)	<-c}