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 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 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