You haven't shown which lines 75, 76 and 83 correspond to. It's easier if
you put the whole code on play.golang.org, and we'll be able to point to
the error.
But I'm guessing it's this:
data := cmd.Stdout
...
n := int(math.Min(float64(rand.Intn(len(data))), float64(len(data)))) <<
line 75?
d := data[i : i+n] << line 76?
...
if i >= len(data) { << line 83?
If I'm right, the compiler is saying: cmd.Stdout (which you assigned to
'data') is of type io.Writer. It's not a string; you can't take len(...)
of an io.Writer, nor can you slice it.
On Tuesday, 6 July 2021 at 16:03:26 UTC+1 LetGo wrote:
> I think I made some progress.... I think. Is it right what I'm doing ?
>
> ................
> cmd.Stdin = conn
> // cmd.Stdout = conn
> // data := []byte(cmd.Stdout)
> data := cmd.Stdout
> var i int
> for {
> n := int(math.Min(float64(rand.Intn(len(data))), float64(len(data))))
> d := data[i : i+n]
> i += n
> time.Sleep(400 * time.Millisecond)
> d = conn
>
> if i >= len(data) {
> break
> }
> }
> cmd.Stderr = conn
> cmd.Run()
> ............................
>
> But when I try to build I get these errors:
>
> conn.go:75:46: invalid argument data (type io.Writer) for len
> conn.go:76:16: cannot slice data (type io.Writer)
> conn.go:83:22: invalid argument data (type io.Writer) for len
>
>
>
>
>
>
>
>
> Il giorno martedì 29 giugno 2021 alle 19:37:04 UTC+2 LetGo ha scritto:
>
>> Thank you guys for all your answers and suggestions!
>> I really appreciate!
>> Sorry about the screenshots, it was the only way to make the packets
>> "human readable"
>> How could you code that kind of implementation based on your knowledge
>> and skill?
>> I have noone of these in golang ahah as I said, im too newbie to do all
>> this alone!
>> Also not working examples ( if they throw an error I don't care, based on
>> my code are fine!
>> These examples could rapresent a great start from me!(:
>>
>>
>> Il giorno martedì 29 giugno 2021 alle 19:00:06 UTC+2
>> jesper.lou...@gmail.com ha scritto:
>>
>>> On Tue, Jun 29, 2021 at 5:24 PM LetGo <non3...@gmail.com> wrote:
>>>
>>>> Thanks for the answer! (:
>>>> In python it was straightforward to implement and it works like a
>>>> charm. It sends small packets with delay between each other without even
>>>> care if it is UDP or TCP:
>>>>
>>>>
>>> Beware! This is an assumption that will break at some point in time.
>>> Currently the delay and the OS makes things straightforward for you. But
>>> TCP doesn't behave like you expect, and you are very likely to run into
>>> trouble if the machine, the network, or the system starts taking additional
>>> load.
>>>
>>> You need to frame the data. A good way is to use 4 bytes as a size
>>> (unsigned 32 bit integer), followed by a payload of that size. You can then
>>> avoid this becoming an uncontrolled explosion in your software at a later
>>> date. You can also close connections early if too large messages get sent,
>>> etc.
>>>
>>>
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