freebsd-dev/usr.sbin/rtadvd/timer_subr.c

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/* $FreeBSD$ */
/* $KAME: timer.c,v 1.9 2002/06/10 19:59:47 itojun Exp $ */
/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (C) 1998 WIDE Project.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/queue.h>
#include <sys/socket.h>
#include <syslog.h>
#include <stdio.h>
#include <inttypes.h>
#include <time.h>
#include "timer.h"
#include "timer_subr.h"
struct timespec *
rtadvd_timer_rest(struct rtadvd_timer *rat)
{
static struct timespec returnval, now;
clock_gettime(CLOCK_MONOTONIC_FAST, &now);
if (TS_CMP(&rat->rat_tm, &now, <=)) {
syslog(LOG_DEBUG,
"<%s> a timer must be expired, but not yet",
__func__);
returnval.tv_sec = returnval.tv_nsec = 0;
}
else
TS_SUB(&rat->rat_tm, &now, &returnval);
return (&returnval);
}
char *
sec2str(uint32_t s, char *buf)
{
uint32_t day;
uint32_t hour;
uint32_t min;
uint32_t sec;
char *p;
min = s / 60;
sec = s % 60;
hour = min / 60;
min = min % 60;
day = hour / 24;
hour = hour % 24;
p = buf;
if (day > 0)
p += sprintf(p, "%" PRIu32 "d", day);
if (hour > 0)
p += sprintf(p, "%" PRIu32 "h", hour);
if (min > 0)
p += sprintf(p, "%" PRIu32 "m", min);
if ((p == buf) || (sec > 0 && p > buf))
sprintf(p, "%" PRIu32 "s", sec);
return (buf);
}