Fix a bug which resulted in illegal kevent() behaviour on 1-to-1 style sockets.
Fix a bug which resulted in illegal kevent() behaviour on 1-to-1 style
sockets.

ossy-szeged/sctp-refimpl,ossy-szeged/sctp-refimpl,ossy-szeged/sctp-refimpl,ossy-szeged/sctp-refimpl,ossy-szeged/sctp-refimpl,ossy-szeged/sctp-refimpl,ossy-szeged/sctp-refimpl,ossy-szeged/sctp-refimpl,ossy-szeged/sctp-refimpl