1 /* 2 * The MIT License (MIT) 3 * 4 * Copyright (c) 2015-2019 Derick Rethans 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to deal 8 * in the Software without restriction, including without limitation the rights 9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 10 * copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 22 * THE SOFTWARE. 23 */ 24 25 #ifndef __TIMELIB_PRIVATE_H__ 26 #define __TIMELIB_PRIVATE_H__ 27 28 #ifdef HAVE_TIMELIB_CONFIG_H 29 # include "timelib_config.h" 30 #endif 31 32 #ifdef HAVE_SYS_TIME_H 33 # include <sys/time.h> 34 #endif 35 36 #ifdef _WIN32 37 # ifdef HAVE_WINSOCK2_H 38 # include <winsock2.h> 39 # endif 40 #endif 41 42 #include <string.h> 43 44 #ifdef HAVE_SYS_TYPES_H 45 #include <sys/types.h> 46 #endif 47 48 #if defined(HAVE_STDINT_H) 49 # include <stdint.h> 50 #endif 51 52 #if HAVE_UNISTD_H 53 # include <unistd.h> 54 #endif 55 56 #if HAVE_IO_H 57 # include <io.h> 58 #endif 59 60 #if HAVE_DIRENT_H 61 # include <dirent.h> 62 #endif 63 64 #include <stdio.h> 65 #include <limits.h> 66 67 #define TIMELIB_SECOND 1 68 #define TIMELIB_MINUTE 2 69 #define TIMELIB_HOUR 3 70 #define TIMELIB_DAY 4 71 #define TIMELIB_MONTH 5 72 #define TIMELIB_YEAR 6 73 #define TIMELIB_WEEKDAY 7 74 #define TIMELIB_SPECIAL 8 75 #define TIMELIB_MICROSEC 9 76 77 #define TIMELIB_SPECIAL_WEEKDAY 0x01 78 #define TIMELIB_SPECIAL_DAY_OF_WEEK_IN_MONTH 0x02 79 #define TIMELIB_SPECIAL_LAST_DAY_OF_WEEK_IN_MONTH 0x03 80 81 #define TIMELIB_SPECIAL_FIRST_DAY_OF_MONTH 0x01 82 #define TIMELIB_SPECIAL_LAST_DAY_OF_MONTH 0x02 83 84 #define TIMELIB_TIME_PART_DONT_KEEP 0x00 85 #define TIMELIB_TIME_PART_KEEP 0x01 86 87 #define MINS_PER_HOUR 60 88 #define SECS_PER_ERA TIMELIB_LL_CONST(12622780800) 89 #define SECS_PER_DAY 86400 90 #define SECS_PER_HOUR 3600 91 #define USECS_PER_HOUR TIMELIB_LL_CONST(3600000000) 92 93 #define DAYS_PER_WEEK 7 94 #define DAYS_PER_YEAR 365 95 #define DAYS_PER_LYEAR 366 96 #define MONTHS_PER_YEAR 12 97 /* 400*365 days + 97 leap days */ 98 #define DAYS_PER_ERA 146097 99 #define YEARS_PER_ERA 400 100 #define HINNANT_EPOCH_SHIFT 719468 /* 0000-03-01 instead of 1970-01-01 */ 101 102 #define TIMELIB_TZINFO_PHP 0x01 103 #define TIMELIB_TZINFO_ZONEINFO 0x02 104 105 #define timelib_is_leap(y) ((y) % 4 == 0 && ((y) % 100 != 0 || (y) % 400 == 0)) 106 107 #define TIMELIB_DEBUG(s) if (0) { s } 108 109 #define TIMELIB_TIME_FREE(m) \ 110 if (m) { \ 111 timelib_free(m); \ 112 m = NULL; \ 113 } 114 115 #if defined (__GNUC__) 116 # define TIMELIB_GNUC_CHECK_VERSION(major, minor) \ 117 ((__GNUC__ > (major)) || \ 118 ((__GNUC__ == (major)) && (__GNUC_MINOR__ >= (minor)))) 119 #else 120 # define TIMELIB_GNUC_CHECK_VERSION(major, minor) 0 121 #endif 122 123 #if TIMELIB_GNUC_CHECK_VERSION(7, 0) 124 # define TIMELIB_BREAK_INTENTIONALLY_MISSING __attribute__ ((fallthrough)); 125 #else 126 # define TIMELIB_BREAK_INTENTIONALLY_MISSING 127 #endif 128 129 struct _ttinfo 130 { 131 int32_t offset; 132 int isdst; 133 unsigned int abbr_idx; 134 135 unsigned int isstdcnt; 136 unsigned int isgmtcnt; 137 }; 138 139 struct _tlinfo 140 { 141 int64_t trans; 142 int32_t offset; 143 }; 144 145 146 #ifndef LONG_MAX 147 #define LONG_MAX 2147483647L 148 #endif 149 150 #ifndef LONG_MIN 151 #define LONG_MIN (- LONG_MAX - 1) 152 #endif 153 154 #ifdef __cplusplus 155 extern "C" { 156 #endif 157 158 /* From unixtime2tm.c */ 159 int timelib_apply_localtime(timelib_time *t, unsigned int localtime); 160 161 /* From parse_posix.c */ 162 timelib_sll timelib_ts_at_start_of_year(timelib_sll year); 163 ttinfo* timelib_fetch_posix_timezone_offset(timelib_tzinfo *tz, timelib_sll ts, timelib_sll *transition_time); 164 165 /* From parse_tz.c */ 166 void timelib_time_tz_abbr_update(timelib_time* tm, const char* tz_abbr); 167 ttinfo* timelib_fetch_timezone_offset(timelib_tzinfo *tz, timelib_sll ts, timelib_sll *transition_time); 168 169 /* From timelib.c */ 170 int timelib_strcasecmp(const char *s1, const char *s2); 171 int timelib_strncasecmp(const char *s1, const char *s2, size_t n); 172 173 #ifdef __cplusplus 174 } /* extern "C" */ 175 #endif 176 177 #endif 178
