50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Mini watchdog implementation for busybox
|
|
*
|
|
* Copyright (C) 2000 spoon <spoon@ix.netcom.com>.
|
|
*
|
|
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
/* getopt not needed */
|
|
|
|
#include <stdio.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
#include <stdlib.h>
|
|
#include "busybox.h"
|
|
|
|
extern int watchdog_main(int argc, char **argv)
|
|
{
|
|
int fd;
|
|
|
|
if (argc != 2) {
|
|
show_usage();
|
|
}
|
|
|
|
if ((fd=open(argv[1], O_WRONLY)) == -1) {
|
|
perror_msg_and_die(argv[1]);
|
|
}
|
|
|
|
while (1) {
|
|
sleep(30);
|
|
write(fd, "\0", 1);
|
|
}
|
|
|
|
return EXIT_FAILURE;
|
|
}
|