O_CRMOD
defflags &= ECHO | O_CRMOD;
b.sg_flags = O_CRMOD|O_XTABS|O_ANYP;
mode(O_ECHO|O_CRMOD, 0);
if (on & O_CRMOD) {
#define CRMOD O_CRMOD
if (csp->t_flags & O_CRMOD) {
csp->t_flags |= O_CRMOD;
#define CRMOD O_CRMOD