After upgrade lwip to version 1.4.1 I have an issue in qt-network. In my fork was implemented Ssl support in qt-network for using in web browsers. With new lwip https doesn’t work. Http works, but I think with issues too.
I tried to investigate this issue. I think it is related to non-blocking sockets, which implemented in the new version. All simple examples are working properly. Issues occur only in a Qt application. I found that qt application calls connect and the connection started in non-blocking mode, connect return EINPROGRESS. After qt made call connect again, in such case connect must return EAGAIN, but it doesn’t happen in lwip. It doesn’t affect for http connection, but ssl connection is dropped.
Anyone already faced such issues?

--
Ivan Loskutov