Put inside HAVE_STRUCT_SOCKADDR_IN6_SIN6_SCOPE_ID similar to existing instance. Should fix error on UnixWare 7.
in order to reuse them for per-source maxstartups limiting. Supplement with some additional functions from djm's flowtools that we'll also need. ok djm@ (as part of a larger diff). OpenBSD-Commit-ID: e3e7d9ccc6c9b82e25cfef0ec83598e8e2327cbf