1/*- 2 * Copyright (c) 2005 Poul-Henning Kamp 3 * Copyright (c) 1990, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * Chris Torek. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * $FreeBSD: src/lib/libc/stdio/xprintf_time.c,v 1.6 2011/03/06 19:47:46 pjd Exp $ 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#include "xprintf_private.h" 43 44__private_extern__ int 45__printf_arginfo_time(const struct printf_info *pi, size_t n, int *argt) 46{ 47 48 assert(n >= 1); 49 argt[0] = PA_POINTER; 50 return (1); 51} 52#define MINUTE 60 53#define HOUR (60 * MINUTE) 54#define DAY (24 * HOUR) 55#define YEAR (365 * DAY) 56 57__private_extern__ int 58__printf_render_time(struct __printf_io *io, const struct printf_info *pi, const void *const *arg) 59{ 60 char buf[100]; 61 char *p; 62 struct timeval *tv; 63 struct timespec *ts; 64 time_t *tp; 65 intmax_t t, tx; 66 int i, prec, nsec, ret; 67 68 if (pi->is_long) { 69 tv = *((struct timeval **)arg[0]); 70 t = tv->tv_sec; 71 nsec = tv->tv_usec * 1000; 72 prec = 6; 73 } else if (pi->is_long_double) { 74 ts = *((struct timespec **)arg[0]); 75 t = ts->tv_sec; 76 nsec = ts->tv_nsec; 77 prec = 9; 78 } else { 79 tp = *((time_t **)arg[0]); 80 t = *tp; 81 nsec = 0; 82 prec = 0; 83 } 84 if (pi->is_long || pi->is_long_double) { 85 if (pi->prec >= 0) 86 prec = pi->prec; 87 if (prec == 0) 88 nsec = 0; 89 } 90 91 p = buf; 92 if (pi->alt) { 93 tx = t; 94 if (t >= YEAR) { 95 p += sprintf(p, "%jdy", t / YEAR); 96 t %= YEAR; 97 } 98 if (tx >= DAY && (t != 0 || prec != 0)) { 99 p += sprintf(p, "%jdd", t / DAY); 100 t %= DAY; 101 } 102 if (tx >= HOUR && (t != 0 || prec != 0)) { 103 p += sprintf(p, "%jdh", t / HOUR); 104 t %= HOUR; 105 } 106 if (tx >= MINUTE && (t != 0 || prec != 0)) { 107 p += sprintf(p, "%jdm", t / MINUTE); 108 t %= MINUTE; 109 } 110 if (t != 0 || tx == 0 || prec != 0) 111 p += sprintf(p, "%jds", t); 112 } else { 113 p += sprintf(p, "%jd", (intmax_t)t); 114 } 115 if (prec != 0) { 116 for (i = prec; i < 9; i++) 117 nsec /= 10; 118 p += sprintf(p, ".%.*d", prec, nsec); 119 } 120 ret = __printf_out(io, pi, buf, p - buf); 121 __printf_flush(io); 122 return (ret); 123} 124