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 1.3 2006/02/04 14:35:01 phk Exp $ 34 */ 35 36 #include "namespace.h" 37 #include <stdio.h> 38 #include <wchar.h> 39 #include <stdint.h> 40 #include <assert.h> 41 #include <sys/time.h> 42 #include "un-namespace.h" 43 #include "printf.h" 44 45 int 46 __printf_arginfo_time(const struct printf_info *pi __unused, size_t n, 47 int *argt) 48 { 49 50 assert(n >= 1); 51 argt[0] = PA_POINTER; 52 return (1); 53 } 54 #define MINUTE 60 55 #define HOUR (60 * MINUTE) 56 #define DAY (24 * HOUR) 57 #define YEAR (365 * DAY) 58 59 int 60 __printf_render_time(struct __printf_io *io, const struct printf_info *pi, 61 const void *const *arg) 62 { 63 char buf[100]; 64 char *p; 65 struct timeval *tv; 66 struct timespec *ts; 67 time_t *tp; 68 intmax_t t, tx; 69 int i, prec, nsec; 70 71 prec = 0; 72 if (pi->is_long) { 73 tv = *((struct timeval **)arg[0]); 74 t = tv->tv_sec; 75 nsec = tv->tv_usec * 1000; 76 prec = 6; 77 } else if (pi->is_long_double) { 78 ts = *((struct timespec **)arg[0]); 79 t = ts->tv_sec; 80 nsec = ts->tv_nsec; 81 prec = 9; 82 } else { 83 tp = *((time_t **)arg[0]); 84 t = *tp; 85 } 86 87 p = buf; 88 if (pi->alt) { 89 tx = t; 90 if (t >= YEAR) { 91 p += sprintf(p, "%jdy", t / YEAR); 92 t %= YEAR; 93 } 94 if (t >= DAY && t != 0) { 95 p += sprintf(p, "%jdd", t / DAY); 96 t %= DAY; 97 } 98 if (t >= HOUR && t != 0) { 99 p += sprintf(p, "%jdh", t / HOUR); 100 t %= HOUR; 101 } 102 if (t >= MINUTE && t != 0) { 103 p += sprintf(p, "%jdm", t / MINUTE); 104 t %= MINUTE; 105 } 106 if (t != 0 || tx == 0) 107 p += sprintf(p, "%jds", t); 108 } else { 109 p += sprintf(p, "%jd", (intmax_t)t); 110 } 111 if (pi->is_long || pi->is_long_double) { 112 if (pi->prec >= 0) 113 prec = pi->prec; 114 for (i = prec; i < 9; i++) 115 nsec /= 10; 116 p += sprintf(p, ".%.*d", prec, nsec); 117 } 118 return(__printf_out(io, pi, buf, p - buf)); 119 } 120