136 lines
3.7 KiB
C
136 lines
3.7 KiB
C
#ifndef __TZFILE_H__
|
|
#define __TZFILE_H__
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
#ident "$Revision: 1.3 $"
|
|
/*
|
|
*
|
|
* Copyright 1992, Silicon Graphics, Inc.
|
|
* All Rights Reserved.
|
|
*
|
|
* This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics, Inc.;
|
|
* the contents of this file may not be disclosed to third parties, copied or
|
|
* duplicated in any form, in whole or in part, without the prior written
|
|
* permission of Silicon Graphics, Inc.
|
|
*
|
|
* RESTRICTED RIGHTS LEGEND:
|
|
* Use, duplication or disclosure by the Government is subject to restrictions
|
|
* as set forth in subdivision (c)(1)(ii) of the Rights in Technical Data
|
|
* and Computer Software clause at DFARS 252.227-7013, and/or in similar or
|
|
* successor clauses in the FAR, DOD or NASA FAR Supplement. Unpublished -
|
|
* rights reserved under the Copyright Laws of the United States.
|
|
*/
|
|
/* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */
|
|
/* Copyright (c) 1988 AT&T */
|
|
/* All Rights Reserved */
|
|
|
|
/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF */
|
|
/* UNIX System Laboratories, Inc. */
|
|
/* The copyright notice above does not evidence any */
|
|
/* actual or intended publication of such source code. */
|
|
|
|
|
|
#ident "@(#)libc-port:gen/tzfile.h 1.3"
|
|
|
|
/*
|
|
** Information about time zone files.
|
|
*/
|
|
|
|
#define TZDIR "/usr/lib/locale/TZ" /* Time zone object file directory */
|
|
|
|
#define TZDEFAULT "localtime"
|
|
|
|
/*
|
|
** Each file begins with. . .
|
|
*/
|
|
|
|
struct tzhead {
|
|
char tzh_reserved[32]; /* reserved for future use */
|
|
char tzh_timecnt[4]; /* coded number of transition times */
|
|
char tzh_typecnt[4]; /* coded number of local time types */
|
|
char tzh_charcnt[4]; /* coded number of abbr. chars */
|
|
};
|
|
|
|
/*
|
|
** . . .followed by. . .
|
|
**
|
|
** tzh_timecnt (char [4])s coded transition times a la time(2)
|
|
** tzh_timecnt (unsigned char)s types of local time starting at above
|
|
** tzh_typecnt repetitions of
|
|
** one (char [4]) coded GMT offset in seconds
|
|
** one (unsigned char) used to set tm_isdt
|
|
** one (unsigned char) that's an abbreviation list index
|
|
** tzh_charcnt (char)s '\0'-terminated zone abbreviaton strings
|
|
*/
|
|
|
|
/*
|
|
** In the current implementation, "tzset()" refuses to deal with files that
|
|
** exceed any of the limits below.
|
|
*/
|
|
|
|
/*
|
|
** The TZ_MAX_TIMES value below is enough to handle a bit more than a
|
|
** year's worth of solar time (corrected daily to the nearest second) or
|
|
** 138 years of Pacific Presidential Election time
|
|
** (where there are three time zone transitions every fourth year).
|
|
*/
|
|
#define TZ_MAX_TIMES 370
|
|
|
|
#ifndef NOSOLAR
|
|
#define TZ_MAX_TYPES 256 /* Limited by what (unsigned char)'s can hold */
|
|
#else /* !NOSOLAR */
|
|
#define TZ_MAX_TYPES 10 /* Maximum number of local time types */
|
|
#endif /* !NOSOLAR */
|
|
|
|
#define TZ_MAX_CHARS 50 /* Maximum number of abbreviation characters */
|
|
|
|
#define SECS_PER_MIN 60
|
|
#define MINS_PER_HOUR 60
|
|
#define HOURS_PER_DAY 24
|
|
#define DAYS_PER_WEEK 7
|
|
#define DAYS_PER_NYEAR 365
|
|
#define DAYS_PER_LYEAR 366
|
|
#define SECS_PER_HOUR (SECS_PER_MIN * MINS_PER_HOUR)
|
|
#define SECS_PER_DAY ((long) SECS_PER_HOUR * HOURS_PER_DAY)
|
|
#define MONS_PER_YEAR 12
|
|
|
|
#define TM_SUNDAY 0
|
|
#define TM_MONDAY 1
|
|
#define TM_TUESDAY 2
|
|
#define TM_WEDNESDAY 3
|
|
#define TM_THURSDAY 4
|
|
#define TM_FRIDAY 5
|
|
#define TM_SATURDAY 6
|
|
|
|
#define TM_JANUARY 0
|
|
#define TM_FEBRUARY 1
|
|
#define TM_MARCH 2
|
|
#define TM_APRIL 3
|
|
#define TM_MAY 4
|
|
#define TM_JUNE 5
|
|
#define TM_JULY 6
|
|
#define TM_AUGUST 7
|
|
#define TM_SEPTEMBER 8
|
|
#define TM_OCTOBER 9
|
|
#define TM_NOVEMBER 10
|
|
#define TM_DECEMBER 11
|
|
#define TM_SUNDAY 0
|
|
|
|
#define TM_YEAR_BASE 1900
|
|
|
|
#define EPOCH_YEAR 1970
|
|
#define EPOCH_WDAY TM_THURSDAY
|
|
|
|
/*
|
|
** Accurate only for the past couple of centuries;
|
|
** that will probably do.
|
|
*/
|
|
|
|
#define isleap(y) (((y) % 4) == 0 && ((y) % 100) != 0 || ((y) % 400) == 0)
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif /* !__TZFILE_H__ */
|