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, 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, 60 const void *const *arg) 61 { 62 char buf[100]; 63 char *p; 64 struct timeval *tv; 65 struct timespec *ts; 66 time_t *tp; 67 intmax_t t, tx; 68 int i, prec, nsec; 69 70 prec = 0; 71 if (pi->is_long) { 72 tv = *((struct timeval **)arg[0]); 73 t = tv->tv_sec; 74 nsec = tv->tv_usec * 1000; 75 prec = 6; 76 } else if (pi->is_long_double) { 77 ts = *((struct timespec **)arg[0]); 78 t = ts->tv_sec; 79 nsec = ts->tv_nsec; 80 prec = 9; 81 } else { 82 tp = *((time_t **)arg[0]); 83 t = *tp; 84 } 85 86 p = buf; 87 if (pi->alt) { 88 tx = t; 89 if (t >= YEAR) { 90 p += sprintf(p, "%jdy", t / YEAR); 91 t %= YEAR; 92 } 93 if (t >= DAY && t != 0) { 94 p += sprintf(p, "%jdd", t / DAY); 95 t %= DAY; 96 } 97 if (t >= HOUR && t != 0) { 98 p += sprintf(p, "%jdh", t / HOUR); 99 t %= HOUR; 100 } 101 if (t >= MINUTE && t != 0) { 102 p += sprintf(p, "%jdm", t / MINUTE); 103 t %= MINUTE; 104 } 105 if (t != 0 || tx == 0) 106 p += sprintf(p, "%jds", t); 107 } else { 108 p += sprintf(p, "%jd", (intmax_t)t); 109 } 110 if (pi->is_long || pi->is_long_double) { 111 if (pi->prec >= 0) 112 prec = pi->prec; 113 for (i = prec; i < 9; i++) 114 nsec /= 10; 115 p += sprintf(p, ".%.*d", prec, nsec); 116 } 117 return(__printf_out(io, pi, buf, p - buf)); 118 } 119