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/* vi: set sw=4 ts=4:
* Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
* Copyright (c) 2010-2013 RIPE NCC, Antony <antony@ripe.net>
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*
* sleep implementation for busybox with watchdog petting.
*/
/* BB_AUDIT SUSv3 compliant */
/* BB_AUDIT GNU issues -- fancy version matches except args must be ints. */
/* http://www.opengroup.org/onlinepubs/007904975/utilities/sleep.html */
/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
*
* Rewritten to do proper arg and error checking.
* Also, added a 'fancy' configuration to accept multiple args with
* time suffixes for seconds, minutes, hours, and days.
*/
#include "libbb.h"
#define WATCHDOGDEV "/dev/watchdog"
/* This is a NOFORK applet. Be very careful! */
int sleepkick_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int sleepkick_main(int argc UNUSED_PARAM, char **argv)
{
unsigned duration;
unsigned watchdog;
++argv;
if (!*argv)
bb_show_usage();
duration = xatou(*argv);
++argv;
if(*argv)
{
int fd; /* File handler for watchdog */
int i = 0;
int iMax = 0;
watchdog = xatou(*argv);
iMax = (int) (duration / watchdog);
int modDuration = 0;
int wReminder = 0;
if( duration >= watchdog)
{
modDuration = duration % watchdog;
}
else {
modDuration = duration;
}
fd = open(WATCHDOGDEV, O_RDWR);
for( i = 0; i < iMax; i++)
{
write(fd, "1", 1);
sleep(watchdog);
}
if(modDuration)
{
write(fd, "1", 1);
sleep(modDuration);
write(fd, "1", 1);
}
close(fd);
}
else
{
sleep(duration);
}
return EXIT_SUCCESS;
}
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