TODO:

listen and connect for UDP

listener {
    mainsock = new UdpSocket(true)
    mainsock.bind(in_end)

    do {
        pac = mainsock.receiveAny(out sender_end)
    } while (pac is not ConnectionRequest) skip package
    connector_end = sender_end
    mainsock.sendTo(ConnectionConfirmation, connector_end)

    attemptN = 0
    while(attemptN < 20){
        try {
            pac = mainsock.receiveAny(out sender_end)
            if(sender_end == connector_end) {
                connector_pac = new ConnectorPackage.parse(pac)
                mainsock.sendTo(connector_pac.data, connector_pac.destination), 
            }
            else {
                extern_pac = new ExternPackage(pac, sender_end)
                mainsock.sendTo(extern_pac, connector_end)
            }
            attemptN = 0
        }
        catch { 
            attemptN++
            sleep(10ms)
        }
    }
    log("connector is unreachable")
}

connector {
    if(output_mode == bind) {
        mainsock = new UdpSocket(true)
        mainsock.bind(out_end)
    }
    else if(output_mode == send) {
        mainsock = new UdpSocket(false)
    }
    else throw

    attemptN = 0
    while(attemptN < 20) {
        try {
            pac = mainsock.receiveAny(out sender_end)
            if(sender_end == out_end) {
                connector_pac = new ConnectorPackage(pac)
            }
            else {
                extern_pac = ExternPackage.parse(pac)
                mainsock.sendTo(extern_pac.data, out_end)
            }
            attemptN = 0
        }
        catch { 
            attemptN++
            sleep(10ms)
        }
    }
    log("connector is unreachable")
}

listen and connect for TCP
encrypt/decrypt input/output
- generate temp password from key every 10 minutes:
```
rng(seed: time()/(10*60*CLOCKS_PER_SECOND), salt: hash(key))
```

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TODO:

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