BSocket: interpret setsockopt return value correctly, fallback to WSASendTo/WSARecvFrom if WSASendMsg/WSARecvMsg isn't available
BSocket: interpret setsockopt return value correctly, fallback to WSASendTo/WSARecvFrom if WSASendMsg/WSARecvMsg isn't available

DavidCox1979/badvpn,DavidCox1979/badvpn,DavidCox1979/badvpn,DavidCox1979/badvpn,DavidCox1979/badvpn