Mario Fetka
162 lines
6.2 KiB
C
162 lines
6.2 KiB
C
/****************************************************************************
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* <Novell-copyright>
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* Copyright (c) 2001 Novell, Inc. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of version 2 of the GNU General Public License
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, contact Novell, Inc.
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*
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* To contact Novell about this file by physical or electronic mail, you
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* may find current contact information at www.novell.com.
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* </Novell-copyright>
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****************************************************************************/
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#ifndef MSGDATE_H
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#define MSGDATE_H
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/* This is our Date conversion/calculation library.
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* We calculate everything in the "rata die" format, since this
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* allows to easily calculate "Day of Week" functionality.
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* The calculations/formulas I used can be found at
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* http://www.capecod.net/~pbaum/date/date0.htm
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* http://www.capecod.net/~pbaum/date/rata.htm
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* http://www.capecod.net/~pbaum/date/inrata.htm
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*/
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/* Timezones we understand */
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#define TZ_UTC 0
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#define TZ_GREENWICH 1
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#define TZ_GMT 2
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#define TZ_WEST_EUROPE 3
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#define TZ_CENTRAL_EUROPE 4
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#define TZ_ROMANCE 5
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#define TZ_CENTRAL_EUROPEAN 6
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#define TZ_WEST_CENTRAL_AFRICA 7
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#define TZ_GBT 8
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#define TZ_EAST_EUROPE 9
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#define TZ_EGYPT 10
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#define TZ_SOUTH_AFRICA 11
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#define TZ_FLE 12
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#define TZ_ISRAEL 13
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#define TZ_ARABIC 14
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#define TZ_ARAB 15
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#define TZ_RUSSIAN 16
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#define TZ_EAST_AFRICA 17
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#define TZ_IRAN 18
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#define TZ_ARABIAN 19
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#define TZ_CAUCASUS 20
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#define TZ_AFGHANISTAN 21
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#define TZ_EKATERINENBURG 22
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#define TZ_WEST_ASIA 23
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#define TZ_INDIA 24
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#define TZ_NEPAL 25
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#define TZ_NORTH_CENTRAL_ASIA 26
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#define TZ_CENTRAL_ASIA 27
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#define TZ_SRI_LANKA 28
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#define TZ_MYANMAR 29
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#define TZ_SOUTH_EAST_ASIA 30
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#define TZ_NORTH_EAST_ASIA 31
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#define TZ_CHINA 32
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#define TZ_NORTH_ASIA_EAST 33
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#define TZ_SINGAPORE 34
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#define TZ_WEST_AUSTRALIA 35
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#define TZ_TAIPEI 36
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#define TZ_TOKYO 37
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#define TZ_KOREA 38
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#define TZ_YAKUTSK 39
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#define TZ_CENTRAL_AUSTRALIA 40
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#define TZ_AUS_CENTRAL 41
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#define TZ_EAST_AUSTRALIA 42
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#define TZ_AUS_EASTERN 43
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#define TZ_WEST_PACIFIC 44
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#define TZ_TASMANIA 45
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#define TZ_VLADIVOSTOK 46
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#define TZ_CENTRAL_PACIFIC 47
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#define TZ_NEW_ZEALAND 48
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#define TZ_FIJI 49
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#define TZ_TONGO 50
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#define TZ_AZORES 51
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#define TZ_CAPE_VERDE 52
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#define TZ_MID_ATLANTIC 53
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#define TZ_EAST_SOUTH_AMERICA 54
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#define TZ_SA_EASTERN 55
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#define TZ_GREENLAND 56
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#define TZ_NEWFOUNDLAND 57
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#define TZ_ATLANTIC 58
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#define TZ_SA_WESTERN 59
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#define TZ_PACIFIC_SA 60
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#define TZ_SA_PACIFIC 61
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#define TZ_EASTERN 62
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#define TZ_US_EASTERN 63
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#define TZ_CENTRAL_AMERICA 64
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#define TZ_CENTRAL 65
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#define TZ_MEXICO 66
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#define TZ_CANADA_CENTRAL 67
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#define TZ_US_MOUNTAIN 68
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#define TZ_MOUNTAIN 69
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#define TZ_PACIFIC 70
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#define TZ_ALASKAN 71
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#define TZ_HAWAIIAN 72
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#define TZ_SAMOA 73
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#define TZ_DATELINE 74
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typedef struct _MsgDateFormat {
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const char *const *monthShort;
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const char *const *monthLong;
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const char *const *wDayShort;
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const char *const *wDayLong;
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const char *const *AmPm;
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unsigned long wDayStart;
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long timezoneOffset;
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} MsgDateFormat;
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/* fixme - this is hokey */
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#ifdef MSGDATE_H_NEED_DAYS_PER_MONTH
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static unsigned long MsgDaysPerMonth[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
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#endif
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#define MSG_IS_LEAP_YEAR(y) (((((y)) % 100) != 0 && (((y)) % 4) == 0) || (((y)) % 400) == 0)
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#define MSG_DAYS_IN_MONTH(m, y) (MsgDaysPerMonth[((m)) - 1] + ((((m)) == 2 && MSG_IS_LEAP_YEAR((y)) == 1) ? 1 : 0))
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#define MSG_DAY_OF_WEEK(r) ((r) % 7)
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#define MSG_CAL_ROWS(s, d, m, y, r) ((MSG_DAYS_IN_MONTH(((m)), ((y))) - 1 + ((MSG_DAY_OF_WEEK((r)) - (s) + 7) % 7 + 36 - ((d))) % 7) / 7 + 1)
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* The real functions */
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EXPORT void MsgGetDate(long rataDie, unsigned long *day, unsigned long *month, unsigned long *year);
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EXPORT long MsgGetRataDie(unsigned long day, unsigned long month, unsigned long year);
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/* Date Interface */
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EXPORT BOOL MsgGetRFC822Date(long offset, long utcCime, char *dateBuffer);
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EXPORT long MsgGetUTCOffset(void);
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EXPORT unsigned long MsgGetUTC(unsigned long day, unsigned long month, unsigned long year, unsigned long hour, unsigned long minute, unsigned long second);
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EXPORT BOOL MsgGetDMY(unsigned long utcTime, unsigned long *day, unsigned long *month, unsigned long *year, unsigned long *hour, unsigned long *minute, unsigned long *second);
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EXPORT unsigned long MsgGetTimezoneID(long day, long wDay, unsigned long month, unsigned long hour, long dstDay, long dstWDay, unsigned long dstMonth, unsigned long dstHour, long offset, long dstOffset);
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EXPORT long MsgGetUTCOffsetByDate(unsigned long timezone, unsigned long day, unsigned long month, unsigned long year, unsigned long hour);
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EXPORT long MsgGetUTCOffsetByUTC(unsigned long timezone, unsigned long utc);
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EXPORT unsigned long MsgPrint(char *buffer, int bufLen, const char *format, unsigned long time, const MsgDateFormat *dateInfo);
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unsigned long MsgLookupRFC822Month(const char *name);
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uint64_t MsgParseRFC822DateTime(const char *date);
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uint64_t MsgParseRFC822Date(const char *date);
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#ifdef __cplusplus
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}
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#endif
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#endif /* MSGDATE_H */
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