1 // SPDX-License-Identifier: GPL-2.0
2 #include "term.h"
3 #include <stdlib.h>
4 #include <termios.h>
5 #include <unistd.h>
6 #include <sys/ioctl.h>
7 
get_term_dimensions(struct winsize * ws)8 void get_term_dimensions(struct winsize *ws)
9 {
10 	char *s = getenv("LINES");
11 
12 	if (s != NULL) {
13 		ws->ws_row = atoi(s);
14 		s = getenv("COLUMNS");
15 		if (s != NULL) {
16 			ws->ws_col = atoi(s);
17 			if (ws->ws_row && ws->ws_col)
18 				return;
19 		}
20 	}
21 #ifdef TIOCGWINSZ
22 	if (ioctl(1, TIOCGWINSZ, ws) == 0 &&
23 	    ws->ws_row && ws->ws_col)
24 		return;
25 #endif
26 	ws->ws_row = 25;
27 	ws->ws_col = 80;
28 }
29 
set_term_quiet_input(struct termios * old)30 void set_term_quiet_input(struct termios *old)
31 {
32 	struct termios tc;
33 
34 	tcgetattr(0, old);
35 	tc = *old;
36 	tc.c_lflag &= ~(ICANON | ECHO);
37 	tc.c_cc[VMIN] = 0;
38 	tc.c_cc[VTIME] = 0;
39 	tcsetattr(0, TCSANOW, &tc);
40 }
41