var proxyVersion = socks.SOCKS5
if config.ProxyVersion == 4 {
    proxyVersion = socks.SOCKS4
}
var socksProxy = socks.DialSocksProxy(proxyVersion, "someproxie.com:1080")
gate, err = socksProxy("", "somehost.example.com:8000")
if err != nil {
    return
}
defer gate.Close()

var hsBuf = new(bytes.Buffer)
binary.Write(hsBuf, binary.LittleEndian, 200)
binary.Write(hsBuf, binary.LittleEndian, 500)
_, err = gate.Write(hsBuf.Bytes())
if err != nil {
    return
}