1 /* $NetBSD: t_mktime.c,v 1.4 2012/01/07 15:05:22 martin Exp $ */ 2 3 /*- 4 * Copyright (c) 2011 The NetBSD Foundation, Inc. 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <atf-c.h> 30 31 #include <err.h> 32 #include <errno.h> 33 #include <string.h> 34 #include <time.h> 35 36 ATF_TC(mktime_negyear); 37 38 ATF_TC_HEAD(mktime_negyear, tc) 39 { 40 41 atf_tc_set_md_var(tc, "descr", "Test mktime(3) with negative year"); 42 } 43 44 ATF_TC_BODY(mktime_negyear, tc) 45 { 46 struct tm tms; 47 time_t t; 48 49 (void)memset(&tms, 0, sizeof(tms)); 50 tms.tm_year = ~0; 51 52 errno = 0; 53 t = mktime(&tms); 54 ATF_REQUIRE_ERRNO(0, t != (time_t)-1); 55 } 56 57 ATF_TC(timegm_epoch); 58 59 ATF_TC_HEAD(timegm_epoch, tc) 60 { 61 62 atf_tc_set_md_var(tc, "descr", "Test timegm(3) close to the epoch"); 63 } 64 65 ATF_TC_BODY(timegm_epoch, tc) 66 { 67 struct tm tms; 68 time_t t; 69 70 /* midnight on 1 Jan 1970 */ 71 (void)memset(&tms, 0, sizeof(tms)); 72 errno = 0; 73 tms.tm_year = 1970 - 1900; 74 tms.tm_mday = 1; 75 t = timegm(&tms); 76 ATF_REQUIRE_ERRNO(0, t == (time_t)0); 77 78 /* one second after midnight on 1 Jan 1970 */ 79 (void)memset(&tms, 0, sizeof(tms)); 80 errno = 0; 81 tms.tm_year = 1970 - 1900; 82 tms.tm_mday = 1; 83 tms.tm_sec = 1; 84 t = timegm(&tms); 85 ATF_REQUIRE_ERRNO(0, t == (time_t)1); 86 87 /* 88 * 1969-12-31 23:59:59 = one second before the epoch. 89 * Result should be -1 with errno = 0. 90 */ 91 (void)memset(&tms, 0, sizeof(tms)); 92 errno = 0; 93 tms.tm_year = 1969 - 1900; 94 tms.tm_mon = 12 - 1; 95 tms.tm_mday = 31; 96 tms.tm_hour = 23; 97 tms.tm_min = 59; 98 tms.tm_sec = 59; 99 t = timegm(&tms); 100 ATF_REQUIRE_ERRNO(0, t == (time_t)-1); 101 102 /* 103 * Another way of getting one second before the epoch: 104 * Set date to 1 Jan 1970, and time to -1 second. 105 */ 106 (void)memset(&tms, 0, sizeof(tms)); 107 errno = 0; 108 tms.tm_year = 1970 - 1900; 109 tms.tm_mday = 1; 110 tms.tm_sec = -1; 111 t = timegm(&tms); 112 ATF_REQUIRE_ERRNO(0, t == (time_t)-1); 113 114 /* 115 * Two seconds before the epoch. 116 */ 117 (void)memset(&tms, 0, sizeof(tms)); 118 errno = 0; 119 tms.tm_year = 1970 - 1900; 120 tms.tm_mday = 1; 121 tms.tm_sec = -2; 122 t = timegm(&tms); 123 ATF_REQUIRE_ERRNO(0, t == (time_t)-2); 124 125 } 126 127 128 ATF_TP_ADD_TCS(tp) 129 { 130 131 ATF_TP_ADD_TC(tp, mktime_negyear); 132 ATF_TP_ADD_TC(tp, timegm_epoch); 133 134 return atf_no_error(); 135 } 136