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 #include <namespace.h>
36 #include <stdio.h>
37 #include <wchar.h>
38 #include <stdint.h>
39 #include <assert.h>
40 #include <sys/time.h>
41 #include "printf.h"
42
43 int
__printf_arginfo_time(const struct printf_info * pi,size_t n,int * argt)44 __printf_arginfo_time(const struct printf_info *pi, size_t n, int *argt)
45 {
46
47 assert(n >= 1);
48 argt[0] = PA_POINTER;
49 return (1);
50 }
51 #define MINUTE 60
52 #define HOUR (60 * MINUTE)
53 #define DAY (24 * HOUR)
54 #define YEAR (365 * DAY)
55
56 int
__printf_render_time(struct __printf_io * io,const struct printf_info * pi,const void * const * arg)57 __printf_render_time(struct __printf_io *io, const struct printf_info *pi, const void *const *arg)
58 {
59 char buf[100];
60 char *p;
61 struct timeval *tv;
62 struct timespec *ts;
63 time_t *tp;
64 intmax_t t, tx;
65 int i, prec, nsec, ret;
66
67 if (pi->is_long) {
68 tv = *((struct timeval **)arg[0]);
69 t = tv->tv_sec;
70 nsec = tv->tv_usec * 1000;
71 prec = 6;
72 } else if (pi->is_long_double) {
73 ts = *((struct timespec **)arg[0]);
74 t = ts->tv_sec;
75 nsec = ts->tv_nsec;
76 prec = 9;
77 } else {
78 tp = *((time_t **)arg[0]);
79 t = *tp;
80 nsec = 0;
81 prec = 0;
82 }
83 if (pi->is_long || pi->is_long_double) {
84 if (pi->prec >= 0)
85 prec = pi->prec;
86 if (prec == 0)
87 nsec = 0;
88 }
89
90 p = buf;
91 if (pi->alt) {
92 tx = t;
93 if (t >= YEAR) {
94 p += sprintf(p, "%jdy", t / YEAR);
95 t %= YEAR;
96 }
97 if (tx >= DAY && (t != 0 || prec != 0)) {
98 p += sprintf(p, "%jdd", t / DAY);
99 t %= DAY;
100 }
101 if (tx >= HOUR && (t != 0 || prec != 0)) {
102 p += sprintf(p, "%jdh", t / HOUR);
103 t %= HOUR;
104 }
105 if (tx >= MINUTE && (t != 0 || prec != 0)) {
106 p += sprintf(p, "%jdm", t / MINUTE);
107 t %= MINUTE;
108 }
109 if (t != 0 || tx == 0 || prec != 0)
110 p += sprintf(p, "%jds", t);
111 } else {
112 p += sprintf(p, "%jd", (intmax_t)t);
113 }
114 if (prec != 0) {
115 for (i = prec; i < 9; i++)
116 nsec /= 10;
117 p += sprintf(p, ".%.*d", prec, nsec);
118 }
119 ret = __printf_out(io, pi, buf, p - buf);
120 __printf_flush(io);
121 return (ret);
122 }
123