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proxy.go

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package proxy

import (

"fmt"

"net"

)

type Proxy interface {

// Start forwarding traffic back and forth the front and back-end

// addresses.

Run()

// Stop forwarding traffic and close both ends of the Proxy.

Close()

// Return the address on which the proxy is listening.

FrontendAddr() net.Addr

// Return the proxied address.

BackendAddr() net.Addr

}

func NewProxy(frontendAddr, backendAddr net.Addr) (Proxy, error) {

switch frontendAddr.(type) {

case *net.UDPAddr:

return NewUDPProxy(frontendAddr.(*net.UDPAddr), backendAddr.(*net.UDPAddr))

case *net.TCPAddr:

return NewTCPProxy(frontendAddr.(*net.TCPAddr), backendAddr.(*net.TCPAddr))

default:

panic(fmt.Errorf("Unsupported protocol"))

}

}