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