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 * $FreeBSD$ 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 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 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