summaryrefslogtreecommitdiffstats
path: root/lib/libc/stdio/xprintf_time.c
blob: 81697f165a4304b3e4663081f46910bac9534b15 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
/*-
 * Copyright (c) 2005 Poul-Henning Kamp
 * Copyright (c) 1990, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Chris Torek.
 *
 * 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 University 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 REGENTS 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 REGENTS 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.
 *
 * $FreeBSD$
 */
#include <namespace.h>
#include <stdio.h>
#include <wchar.h>
#include <stdint.h>
#include <assert.h>
#include <sys/time.h>
#include "printf.h"

int
__printf_arginfo_time(const struct printf_info *pi, size_t n, int *argt)
{

	assert(n >= 1);
	argt[0] = PA_POINTER;
	return (1);
}
#define MINUTE 60
#define HOUR	(60 * MINUTE)
#define DAY	(24 * HOUR)
#define YEAR	(365 * DAY)

int
__printf_render_time(struct __printf_io *io, const struct printf_info *pi, const void *const *arg)
{
	char buf[100];
	char *p;
	struct timeval *tv;
	struct timespec *ts;
	time_t *tp;
	intmax_t t, tx;
	int i, prec, nsec;

	prec = 0;
	if (pi->is_long) {
		tv = *((struct timeval **)arg[0]);
		t = tv->tv_sec;
		nsec = tv->tv_usec * 1000;
		prec = 6;
	} else if (pi->is_long_double) {
		ts = *((struct timespec **)arg[0]);
		t = ts->tv_sec;
		nsec = ts->tv_nsec;
		prec = 9;
	} else {
		tp = *((time_t **)arg[0]);
		t = *tp;
	}

	p = buf;
	if (pi->alt) {
		tx = t;
		if (t >= YEAR) {
			p += sprintf(p, "%jdy", t / YEAR);
			t %= YEAR;
		}
		if (t >= DAY && t != 0) {
			p += sprintf(p, "%jdd", t / DAY);
			t %= DAY;
		}
		if (t >= HOUR && t != 0) {
			p += sprintf(p, "%jdh", t / HOUR);
			t %= HOUR;
		}
		if (t >= MINUTE && t != 0) {
			p += sprintf(p, "%jdm", t / MINUTE);
			t %= MINUTE;
		}
		if (t != 0 || tx == 0)
			p += sprintf(p, "%jds", t);
	} else  {
		p += sprintf(p, "%jd", (intmax_t)t);
	}
	if (pi->is_long || pi->is_long_double) {
		if (pi->prec >= 0) 
			prec = pi->prec;
		for (i = prec; i < 9; i++)
			nsec /= 10;
		p += sprintf(p, ".%.*d", prec, nsec);
	}
	return(__printf_out(io, pi, buf, p - buf));
}
OpenPOWER on IntegriCloud