[erlang-questions] packet and packet_size options in dlls socket

[Jesper Louis Andersen]

Pure guess:

Because UDP is an unreliable protocol and thus has no support for the
"packet" option (whereas TCP does). My guess is that {packet, 0} has no
real effect in the default option list.

On Sat, Dec 30, 2017 at 6:52 PM Joe K <goodjoe2049@REDACTED> wrote:

> Why is `packet` one of the default options here
>
> https://github.com/erlang/otp/blob/master/lib/ssl/src/dtls_socket.erl#L142-L143
>
>   default_inet_values() ->
>     [{active, true}, {mode, list}, {packet, 0}, {packet_size, 0}].
>
> But is then prohibited here
>
> https://github.com/erlang/otp/blob/master/lib/ssl/src/dtls_socket.erl#L173-L174
>
>   emulated_options([{packet, _} = Opt | _], _, _) ->
>     throw({error, {options, {not_supported, Opt}}});
>
> Same for `packet_size` option.
>
>
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