Example #1
0
File: ucat.go Project: rht/ipget
// Dial connects to a remote address and pipes all os.Stdin to the remote end.
// If localAddr is set, uses it to Dial from.
func Dial(localAddr, remoteAddr string) error {

	var laddr net.Addr
	var err error
	if localAddr != "" {
		laddr, err = utp.ResolveAddr("utp", localAddr)
		if err != nil {
			return fmt.Errorf("failed to resolve address %s", localAddr)
		}
	}

	if laddr != nil {
		log("dialing %s from %s", remoteAddr, laddr)
	} else {
		log("dialing %s", remoteAddr)
	}

	d := utp.Dialer{LocalAddr: laddr}
	c, err := d.Dial("utp", remoteAddr)
	if err != nil {
		return err
	}
	log("connected to %s", c.RemoteAddr())

	netcat(c)
	return c.Close()
}
Example #2
0
File: ucat.go Project: rht/ipget
// Listen listens and accepts one incoming uTP connection on a given port,
// and pipes all incoming data to os.Stdout.
func Listen(localAddr string) error {
	laddr, err := utp.ResolveAddr("utp", localAddr)
	if err != nil {
		return fmt.Errorf("failed to resolve address %s", localAddr)
	}
	l, err := utp.Listen("utp", laddr)
	if err != nil {
		return err
	}
	log("listening at %s", l.Addr())

	c, err := l.Accept()
	if err != nil {
		return err
	}
	log("accepted connection from %s", c.RemoteAddr())

	// should be able to close listener here, but utp.Listener.Close
	// closes all open connections.
	defer l.Close()

	netcat(c)
	return c.Close()
}