> On 21. Apr 2020, at 23:49, Matt Caswell <matt@xxxxxxxxxxx> wrote: > > > > On 21/04/2020 18:34, Claus Assmann wrote: >> Thanks for the reply, below is the output, It seems it only fails >> because the host doesn't support IPv6? > > Yes - it does seem to be an IPv6 problem. I don't recall any recent > changes in this area. Were you successfully able to run the tests with > previous versions of OpenSSL? > > Looks like the failing call is here: > > if (setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, > (const void *)&on, sizeof(on)) != 0) { Can you provide a pointer to the code? Best regards Michael > > To which we get an errno indicating "Invalid argument". So it looks like > your host has the relevant IPV6 macros defined (otherwise we would have > got a compilation failure) - but doesn't understand them when used. > > If you're not using IPv6 on that host and this is the only test failure > then it can probably be safely ignored. > > Matt