INP_RECVFLOWID
if (inp->inp_flags2 & INP_RECVFLOWID) {
OPTSET2(INP_RECVFLOWID, optval);
optval = OPTBIT2(INP_RECVFLOWID);
if (inp->inp_flags2 & INP_RECVFLOWID) {
OPTSET2(INP_RECVFLOWID, optval);
optval = OPTBIT2(INP_RECVFLOWID);