w_char
if(w_char(TTYOUT) == NO)
w_char(), /* local io routine */
if( w_char(Cn) == NO) {
(void)w_char(TTYOUT);
(void)w_char(TTYOUT);
if(w_char(Cn) == NO) {
if((w_char(TTYERR) == NO) || (wioflsh(TTYERR) == NO))