// SPDX-License-Identifier: GPL-2.0
#include "term.h"
#include <stdlib.h>
#include <termios.h>
#include <unistd.h>
#include <sys/ioctl.h>

void get_term_dimensions(struct winsize *ws)
{
        char *s = getenv("LINES");

        if (s != NULL) {
                ws->ws_row = atoi(s);
                s = getenv("COLUMNS");
                if (s != NULL) {
                        ws->ws_col = atoi(s);
                        if (ws->ws_row && ws->ws_col)
                                return;
                }
        }
#ifdef TIOCGWINSZ
        if (ioctl(1, TIOCGWINSZ, ws) == 0 &&
            ws->ws_row && ws->ws_col)
                return;
#endif
        ws->ws_row = 25;
        ws->ws_col = 80;
}

void set_term_quiet_input(struct termios *old)
{
        struct termios tc;

        tcgetattr(0, old);
        tc = *old;
        tc.c_lflag &= ~(ICANON | ECHO);
        tc.c_cc[VMIN] = 0;
        tc.c_cc[VTIME] = 0;
        tcsetattr(0, TCSANOW, &tc);
}