ite_cnfilter
c = ite_cnfilter(c, ITEFILT_CONSOLE);
int ite_cnfilter(u_char, enum caller);
c = ite_cnfilter(c, ITEFILT_CONSOLE);
int ite_cnfilter(u_int, enum caller);
c = ite_cnfilter(c);
int ite_cnfilter(u_char);