term.c

Go to the documentation of this file.

// 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);
}