cr_canseesocket
error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
error = cr_canseesocket(req->td->td_ucred,
error = cr_canseesocket(req->td->td_ucred,
int cr_canseesocket(struct ucred *cred, struct socket *so);