func main() {
var addr, conf string
flag.StringVar(&addr, "a", "127.0.0.1:9876", "`address` of server")
flag.StringVar(&conf, "f", "client.json", "config `file` to use")
flag.Parse()
var id = new(core.Identity)
data, err := ioutil.ReadFile(conf)
if err != nil {
exlib.Err(1, err, "reading config file")
}
err = json.Unmarshal(data, id)
if err != nil {
exlib.Err(1, err, "parsing config file")
}
tr, err := transport.New(exlib.Before, id)
if err != nil {
exlib.Err(1, err, "creating transport")
}
conn, err := transport.Dial(addr, tr)
if err != nil {
exlib.Err(1, err, "dialing %s", addr)
}
defer conn.Close()
for _, msg := range messages {
if err = exlib.Pack(conn, []byte(msg)); err != nil {
exlib.Err(1, err, "sending message")
}
var resp []byte
resp, err = exlib.Unpack(conn)
if err != nil {
exlib.Err(1, err, "receiving message")
}
if !bytes.Equal(resp, []byte("OK")) {
exlib.Errx(1, "server didn't send an OK message; received '%s'", resp)
}
}
err = exlib.Pack(conn, []byte{})
if err != nil {
exlib.Err(1, err, "sending shutdown message failed")
}
fmt.Println("OK")
}
func connHandler(conn net.Conn) {
defer conn.Close()
for {
buf, err := exlib.Unpack(conn)
if err != nil {
exlib.Warn(err, "unpack message")
return
}
if len(buf) == 0 {
log.Info(conn.RemoteAddr(), " sent empty record, closing connection")
return
}
log.Infof("received %d-byte message: %s", len(buf), buf)
err = exlib.Pack(conn, []byte("OK"))
if err != nil {
exlib.Warn(err, "pack message")
return
}
}
}