2  * Copyright 2019-2023,2024 Thomas E. Dickey                                *
5  * Permission is hereby granted, free of charge, to any person obtaining a  *
50 /* they neglected to define struct winsize in termios.h -- it is only
129  * Mode-setting logic
134  * commonly-altered ones are defined.
149 /* control-character defaults */
151 #define CEOF	CTRL('D')
154 #define CERASE	CTRL('H')
160 #define CKILL	CTRL('U')
163 #define CLNEXT  CTRL('v')
166 #define CRPRNT  CTRL('r')
169 #define CQUIT	CTRL('\\')
172 #define CSTART	CTRL('Q')
175 #define CSTOP	CTRL('S')
178 #define CSUSP	CTRL('Z')
182 #define DISABLED(val)   (((_POSIX_VDISABLE != -1) \
191 #define reset_char(item, value) \  argument
192     tty_settings->c_cc[item] = CHK(tty_settings->c_cc[item], value)
315     clear_flags(tty_settings->c_iflag, (IGNBRK  in reset_tty_settings()
325     set_flags(tty_settings->c_iflag, (BRKINT  in reset_tty_settings()
331     clear_flags(tty_settings->c_oflag, (0  in reset_tty_settings()
345     set_flags(tty_settings->c_oflag, (OPOST  in reset_tty_settings()
351     if (ioctl(fd, TIOCMGET, &modem_bits) == -1)  in reset_tty_settings()
354     /* cannot check - use the behavior from tset */  in reset_tty_settings()
357     clear_flags(tty_settings->c_cflag, mask);  in reset_tty_settings()
359     set_flags(tty_settings->c_cflag, (CS8 | CREAD));  in reset_tty_settings()
360     clear_flags(tty_settings->c_lflag, (ECHONL  in reset_tty_settings()
366     set_flags(tty_settings->c_lflag, (ISIG  in reset_tty_settings()
381  * Returns a "good" value for the erase character.  This is loosely based on
418     if (DISABLED(tty_settings->c_cc[VERASE]) || my_erase >= 0) {  in set_control_chars()
419 	tty_settings->c_cc[VERASE] = UChar((my_erase >= 0)  in set_control_chars()
424     if (DISABLED(tty_settings->c_cc[VINTR]) || my_intr >= 0) {  in set_control_chars()
425 	tty_settings->c_cc[VINTR] = UChar((my_intr >= 0)  in set_control_chars()
430     if (DISABLED(tty_settings->c_cc[VKILL]) || my_kill >= 0) {  in set_control_chars()
431 	tty_settings->c_cc[VKILL] = UChar((my_kill >= 0)  in set_control_chars()
448     set_flags(tty_settings->c_oflag, ONLCR);  in set_conversions()
449     set_flags(tty_settings->c_iflag, ICRNL);  in set_conversions()
450     set_flags(tty_settings->c_lflag, ECHO);  in set_conversions()
451     set_flags(tty_settings->c_oflag, OXTABS);  in set_conversions()
456 	clear_flags(tty_settings->c_oflag, ONLCR);  in set_conversions()
457 	clear_flags(tty_settings->c_iflag, ICRNL);  in set_conversions()
462 	clear_flags(tty_settings->c_oflag, OXTABS);  in set_conversions()
464     set_flags(tty_settings->c_lflag, (ECHOE | ECHOK));  in set_conversions()
532 	old_settings->c_oflag & (TAB3 | ONLCR | OCRNL | ONLRET)) {  in send_init_strings()
533 	old_settings->c_oflag &= (TAB3 | ONLCR | OCRNL | ONLRET);  in send_init_strings()
555 	    need_flush |= sent_string(TIPARM_2(set_lr_margin, 0, columns - 1));  in send_init_strings()
563 					       columns - 1));  in send_init_strings()
572 						   columns - 1));  in send_init_strings()
574 		for (i = 0; i < columns - 1; i++) {  in send_init_strings()
596  * Tell the user if a control key has been changed from the default value.
616     newer = new_settings->c_cc[which];  in show_tty_change()
617     older = old_settings->c_cc[which];  in show_tty_change()
627 	 * Check 'delete' before 'backspace', since the key_backspace value  in show_tty_change()
638 	(void) fprintf(stderr, "control-%c (^%c).\n", UChar(newer), UChar(newer));  in show_tty_change()