1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 2005 Poul-Henning Kamp
5 * Copyright (c) 1990, 1993
6 *	The Regents of the University of California.  All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * Chris Torek.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 *    may be used to endorse or promote products derived from this software
21 *    without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * $FreeBSD$
36 */
37#include <namespace.h>
38#include <stdio.h>
39#include <wchar.h>
40#include <stdint.h>
41#include <assert.h>
42#include <sys/time.h>
43#include "printf.h"
44
45int
46__printf_arginfo_time(const struct printf_info *pi, size_t n, int *argt)
47{
48
49	assert(n >= 1);
50	argt[0] = PA_POINTER;
51	return (1);
52}
53#define MINUTE 60
54#define HOUR	(60 * MINUTE)
55#define DAY	(24 * HOUR)
56#define YEAR	(365 * DAY)
57
58int
59__printf_render_time(struct __printf_io *io, const struct printf_info *pi, const void *const *arg)
60{
61	char buf[100];
62	char *p;
63	struct timeval *tv;
64	struct timespec *ts;
65	time_t *tp;
66	intmax_t t, tx;
67	int i, prec, nsec, ret;
68
69	if (pi->is_long) {
70		tv = *((struct timeval **)arg[0]);
71		t = tv->tv_sec;
72		nsec = tv->tv_usec * 1000;
73		prec = 6;
74	} else if (pi->is_long_double) {
75		ts = *((struct timespec **)arg[0]);
76		t = ts->tv_sec;
77		nsec = ts->tv_nsec;
78		prec = 9;
79	} else {
80		tp = *((time_t **)arg[0]);
81		t = *tp;
82		nsec = 0;
83		prec = 0;
84	}
85	if (pi->is_long || pi->is_long_double) {
86		if (pi->prec >= 0)
87			prec = pi->prec;
88		if (prec == 0)
89			nsec = 0;
90	}
91
92	p = buf;
93	if (pi->alt) {
94		tx = t;
95		if (t >= YEAR) {
96			p += sprintf(p, "%jdy", t / YEAR);
97			t %= YEAR;
98		}
99		if (tx >= DAY && (t != 0 || prec != 0)) {
100			p += sprintf(p, "%jdd", t / DAY);
101			t %= DAY;
102		}
103		if (tx >= HOUR && (t != 0 || prec != 0)) {
104			p += sprintf(p, "%jdh", t / HOUR);
105			t %= HOUR;
106		}
107		if (tx >= MINUTE && (t != 0 || prec != 0)) {
108			p += sprintf(p, "%jdm", t / MINUTE);
109			t %= MINUTE;
110		}
111		if (t != 0 || tx == 0 || prec != 0)
112			p += sprintf(p, "%jds", t);
113	} else  {
114		p += sprintf(p, "%jd", (intmax_t)t);
115	}
116	if (prec != 0) {
117		for (i = prec; i < 9; i++)
118			nsec /= 10;
119		p += sprintf(p, ".%.*d", prec, nsec);
120	}
121	ret = __printf_out(io, pi, buf, p - buf);
122	__printf_flush(io);
123	return (ret);
124}
125