1 /* 2 * Print time_t and nanoseconds in symbolic format. 3 * 4 * Copyright (c) 2015-2017 Dmitry V. Levin <ldv (at) altlinux.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include "tests.h" 31 #include <stdio.h> 32 #include <time.h> 33 34 static void 35 print_time_t_ex(const time_t t, const unsigned long long part_sec, 36 const unsigned int max_part_sec, const int width, 37 const int comment) 38 { 39 40 if ((!t && !part_sec) || part_sec > max_part_sec) 41 return; 42 43 const struct tm *const p = localtime(&t); 44 char buf[256]; 45 if (!p || !strftime(buf, sizeof(buf), "%FT%T", p)) 46 return; 47 48 if (comment) 49 fputs(" /* ", stdout); 50 51 fputs(buf, stdout); 52 53 if (part_sec) 54 printf(".%0*llu", width, part_sec); 55 56 if (strftime(buf, sizeof(buf), "%z", p)) 57 fputs(buf, stdout); 58 59 if (comment) 60 fputs(" */", stdout); 61 } 62 63 void 64 print_time_t_nsec(const time_t t, const unsigned long long nsec, int comment) 65 { 66 print_time_t_ex(t, nsec, 999999999, 9, comment); 67 } 68 69 void 70 print_time_t_usec(const time_t t, const unsigned long long usec, int comment) 71 { 72 print_time_t_ex(t, usec, 999999, 6, comment); 73 } 74
