<p>Yeah, <code>gnrc_tcp</code> is still missing an implementation for <code>sock_tcp</code> :(. It is on <a class="user-mention" data-hovercard-type="user" data-hovercard-url="/hovercards?user_id=3950119" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/brummer-simon">@brummer-simon</a>'s TODO list though (after GNRC's TCP API itself was cleaned up AFAIK). And yes, due to our focus on UDP-based communication in the past, I have to admit that TCP+RIOT is in a bad state in general :(. However, just using the plain <code>gnrc_tcp</code> API <em>should</em> work (but I always would recommend lwIP over GNRC for TCP traffic as it is far more mature than GNRC in that regard atm).</p>

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