cursetree/src/termio.c

#include "termio.h"

/* c_iflag bit masks */
#define ifl_RAW (~(IMAXBEL))
/* NOTE: the line below won't work, bad bitwise ops */
#define ifl_NOPARITY ((IGNPAR) & ~(PARMRK | INPCK | ISTRIP))

/* c_cflag bit masks */
#define cfl_NOPARITY (~(PARENB))

/* c_lflag bit masks */
#define lfl_RAW (~(ISIG | ICANON))
#define lfl_ECHO ((ECHO | ECHOE | ECHOK | ECHONL | ECHO))
// & ~(ECHOCTL | ECHOPRT | ECHOKE))

int termmode_raw(struct ct_term *restrict const term) {
  term->termios.c_lflag &= lfl_RAW & ~(lfl_ECHO);
  ct_applyterm(term);
  return OK;
}

int termmode_canon(struct ct_term *restrict const term) {
  term->termios.c_lflag &= (ISIG);
  return OK;
}

/* Set ncurses terminal mode (buffering, character processing,
 * Key->SIG handling, and other termios(3) functionality).
 */
static inline int termmode(struct ct_term *restrict const term,
                           const enum crs_termmode mode) {
  switch (mode) {
  case TMODE_RAW:
    return termmode_raw(term);
  case TMODE_CANON:
    return termmode_canon(term); /* ITS A CANON EVENT OHMAHGOH */
  default:
    /* defaulting is not possible. */
    return 1;
  }
}