SCTP_SI
SCTP_SI(stream, i)->mid = 0;
SCTP_SI(stream, i)->mid = 0;
SCTP_SI(stream, ntohs(str_p[i]))->mid = 0;
SCTP_SI(stream, i)->mid = 0;
SCTP_SI(stream, i)->mid = 0;
struct sctp_stream_in *sin = SCTP_SI(stream, sid);