-/* md_control_keyboard():
- *
- * This routine is much like md_cbreak_no_echo_nonl() below. It sets up the
- * keyboard for appropriate input. Specifically, it prevents the tty driver
- * from stealing characters. For example, ^Y is needed as a command
- * character, but the tty driver intercepts it for another purpose. Any
- * such behavior should be stopped. This routine could be avoided if
- * we used RAW mode instead of CBREAK. But RAW mode does not allow the
- * generation of keyboard signals, which the program uses.
- *
- * The parameter 'mode' when true, indicates that the keyboard should
- * be set up to play rogue. When false, it should be restored if
- * necessary.
- *
- * This routine is not strictly necessary and may be stubbed. This may
- * cause certain command characters to be unavailable.
- */
-
-md_control_keybord(mode)
-boolean mode;
-{
- static boolean called_before = 0;
-#ifdef UNIX_BSD4_2
- static struct ltchars ltc_orig;
- static struct tchars tc_orig;
- struct ltchars ltc_temp;
- struct tchars tc_temp;
-#endif
-#ifdef UNIX_SYSV
- static struct termio _oldtty;
- struct termio _tty;
-#endif
-
- if (!called_before) {
- called_before = 1;
-#ifdef UNIX_BSD4_2
- ioctl(0, TIOCGETC, &tc_orig);
- ioctl(0, TIOCGLTC, <c_orig);
-#endif
-#ifdef UNIX_SYSV
- ioctl(0, TCGETA, &_oldtty);
-#endif
- }
-#ifdef UNIX_BSD4_2
- ltc_temp = ltc_orig;
- tc_temp = tc_orig;
-#endif
-#ifdef UNIX_SYSV
- _tty = _oldtty;
-#endif
-
- if (!mode) {
-#ifdef UNIX_BSD4_2
- ltc_temp.t_suspc = ltc_temp.t_dsuspc = -1;
- ltc_temp.t_rprntc = ltc_temp.t_flushc = -1;
- ltc_temp.t_werasc = ltc_temp.t_lnextc = -1;
- tc_temp.t_startc = tc_temp.t_stopc = -1;
-#endif
-#ifdef UNIX_SYSV
- _tty.c_cc[VSWTCH] = CNSWTCH;
-#endif
- }
-#ifdef UNIX_BSD4_2
- ioctl(0, TIOCSETC, &tc_temp);
- ioctl(0, TIOCSLTC, <c_temp);
-#endif
-#ifdef UNIX_SYSV
- ioctl(0, TCSETA, &_tty);
-#endif
-}
-