/*
 watchdog -- A very little and simple watchdog program
 Copyright (C) 2005 Michael Hanselmann

 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2 of the License, or
 (at your option) any later version.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/

#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>

int main() {
    int fd = open("/dev/watchdog", O_WRONLY);
    if(fd < 0) {
        perror("/dev/watchdog");
        exit(1);
    }

    while(1) {
        write(fd, "\0", 1);
        sleep(10);
    }

    /* will never be reached */
    return 0;
}