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
45 int
__printf_arginfo_time(const struct printf_info * pi,size_t n,int * argt)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
58 int
__printf_render_time(struct __printf_io * io,const struct printf_info * pi,const void * const * arg)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