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
8void 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
30void 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