forked from KolibriOS/kolibrios
62 lines
2.2 KiB
C
62 lines
2.2 KiB
C
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/*
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Copyright (c) 1990-2000 Info-ZIP. All rights reserved.
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See the accompanying file LICENSE, version 2000-Apr-09 or later
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(the contents of which are also included in zip.h) for terms of use.
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If, for some reason, all these files are missing, the Info-ZIP license
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also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html
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*/
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#ifndef _MACTIME_H_
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#define _MACTIME_H_
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/* -----------------------------------------------------------------------------
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The original functions (Metrowerks Codewarrior pro 3.0) gmtime, localtime,
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mktime and time do not work correctly. The supplied link library mactime.c
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contains replacement functions for them.
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* Caveat: On a Mac, we only know the GMT and DST offsets for
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* the current time, not for the time in question.
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* Mac has no support for DST handling.
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* DST changeover is all manually set by the user.
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------------------------------------------------------------------------------*/
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#include <time.h>
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#include <mactypes.h>
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/*****************************************************************************/
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/* Macros, typedefs */
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/*****************************************************************************/
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/*
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* ARGH. Mac times are based on 1904 Jan 1 00:00, not 1970 Jan 1 00:00.
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* So we have to diddle time_t's appropriately: add or subtract 66 years'
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* worth of seconds == number of days times 86400 == (66*365 regular days +
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* 17 leap days ) * 86400 == (24090 + 17) * 86400 == 2082844800L seconds.
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* We hope time_t is an unsigned long (ulg) on the Macintosh...
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*/
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/*
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This Offset is only used by MacFileDate_to_UTime()
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*/
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#define MACOS_TO_UNIX(x) (x) -= (unsigned long)MacOS_2_Unix
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#define UNIX_TO_MACOS(x) (x) += (unsigned long)MacOS_2_Unix
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/*
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The MacOS function GetDateTime returns the
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number of seconds elapsed since midnight, January 1, 1904.
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*/
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extern const unsigned long MacOS_2_Unix;
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/* prototypes for public utility functions */
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time_t MacFtime2UnixFtime(unsigned long macftime);
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unsigned long UnixFtime2MacFtime(time_t unxftime);
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time_t AdjustForTZmoveMac(unsigned long macloctim, long s_gmtoffs);
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Boolean GetGMToffsetMac(unsigned long macftime, long *UTCoffset);
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#endif
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