1/*	$KAME: timer.c,v 1.9 2002/06/10 19:59:47 itojun Exp $	*/
2
3/*-
4 * SPDX-License-Identifier: BSD-3-Clause
5 *
6 * Copyright (C) 1998 WIDE Project.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the project nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#include <sys/queue.h>
35#include <sys/socket.h>
36#include <syslog.h>
37#include <stdio.h>
38#include <inttypes.h>
39#include <time.h>
40
41#include "timer.h"
42#include "timer_subr.h"
43
44struct timespec *
45rtadvd_timer_rest(struct rtadvd_timer *rat)
46{
47	static struct timespec returnval, now;
48
49	clock_gettime(CLOCK_MONOTONIC_FAST, &now);
50	if (TS_CMP(&rat->rat_tm, &now, <=)) {
51		syslog(LOG_DEBUG,
52		    "<%s> a timer must be expired, but not yet",
53		    __func__);
54		returnval.tv_sec = returnval.tv_nsec = 0;
55	}
56	else
57		TS_SUB(&rat->rat_tm, &now, &returnval);
58
59	return (&returnval);
60}
61
62char *
63sec2str(uint32_t s, char *buf)
64{
65	uint32_t day;
66	uint32_t hour;
67	uint32_t min;
68	uint32_t sec;
69	char *p;
70
71	min = s / 60;
72	sec = s % 60;
73
74	hour = min / 60;
75	min = min % 60;
76
77	day = hour / 24;
78	hour = hour % 24;
79
80	p = buf;
81	if (day > 0)
82		p += sprintf(p, "%" PRIu32 "d", day);
83	if (hour > 0)
84		p += sprintf(p, "%" PRIu32 "h", hour);
85	if (min > 0)
86		p += sprintf(p, "%" PRIu32 "m", min);
87
88	if ((p == buf) || (sec > 0 && p > buf))
89		sprintf(p, "%" PRIu32 "s", sec);
90
91	return (buf);
92}
93