[apple/system_cmds.git] / zic.tproj / tzfile.h

/*
 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*	$OpenBSD: tzfile.h,v 1.4 1997/01/14 03:16:52 millert Exp $	*/

#ifndef TZFILE_H

#define TZFILE_H

/*
** This file is in the public domain, so clarified as of
** 1996-06-05 by Arthur David Olson (arthur_david_olson@nih.gov).
*/

/*
** This header is for use ONLY with the time conversion code.
** There is no guarantee that it will remain unchanged,
** or that it will remain at all.
** Do NOT copy it to any system include directory.
** Thank you!
*/

/*
** ID
*/

#if 0
#ifndef lint
#ifndef NOID
static char	tzfilehid[] = "@(#)tzfile.h	7.9";
#endif /* !defined NOID */
#endif /* !defined lint */
#endif

/*
** Information about time zone files.
*/

#ifndef TZDIR
#define TZDIR	"/usr/share/zoneinfo" /* Time zone object file directory */
#endif /* !defined TZDIR */

#ifndef TZDEFAULT
#define TZDEFAULT	"/etc/localtime"
#endif /* !defined TZDEFAULT */

#ifndef TZDEFRULES
#define TZDEFRULES	"posixrules"
#endif /* !defined TZDEFRULES */

/*
** Each file begins with. . .
*/

struct tzhead {
	char	tzh_reserved[20];	/* reserved for future use */
	char	tzh_ttisgmtcnt[4];	/* coded number of trans. time flags */
	char	tzh_ttisstdcnt[4];	/* coded number of trans. time flags */
	char	tzh_leapcnt[4];		/* coded number of leap seconds */
	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_isdst
**		one (unsigned char)	that's an abbreviation list index
**	tzh_charcnt (char)s		'\0'-terminated zone abbreviations
**	tzh_leapcnt repetitions of
**		one (char [4])		coded leap second transition times
**		one (char [4])		total correction after above
**	tzh_ttisstdcnt (char)s		indexed by type; if TRUE, transition
**					time is standard time, if FALSE,
**					transition time is wall clock time
**					if absent, transition times are
**					assumed to be wall clock time
**	tzh_ttisgmtcnt (char)s		indexed by type; if TRUE, transition
**					time is GMT, if FALSE,
**					transition time is local time
**					if absent, transition times are
**					assumed to be local time
*/

/*
** In the current implementation, "tzset()" refuses to deal with files that
** exceed any of the limits below.
*/

#ifndef TZ_MAX_TIMES
/*
** 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
#endif /* !defined TZ_MAX_TIMES */

#ifndef TZ_MAX_TYPES
#ifndef NOSOLAR
#define TZ_MAX_TYPES	256 /* Limited by what (unsigned char)'s can hold */
#endif /* !defined NOSOLAR */
#ifdef NOSOLAR
/*
** Must be at least 14 for Europe/Riga as of Jan 12 1995,
** as noted by Earl Chew <earl@hpato.aus.hp.com>.
*/
#define TZ_MAX_TYPES	20	/* Maximum number of local time types */
#endif /* !defined NOSOLAR */
#endif /* !defined TZ_MAX_TYPES */

#ifndef TZ_MAX_CHARS
#define TZ_MAX_CHARS	50	/* Maximum number of abbreviation characters */
				/* (limited by what unsigned chars can hold) */
#endif /* !defined TZ_MAX_CHARS */

#ifndef TZ_MAX_LEAPS
#define TZ_MAX_LEAPS	50	/* Maximum number of leap second corrections */
#endif /* !defined TZ_MAX_LEAPS */

#define SECSPERMIN	60
#define MINSPERHOUR	60
#define HOURSPERDAY	24
#define DAYSPERWEEK	7
#define DAYSPERNYEAR	365
#define DAYSPERLYEAR	366
#define SECSPERHOUR	(SECSPERMIN * MINSPERHOUR)
#define SECSPERDAY	((long) SECSPERHOUR * HOURSPERDAY)
#define MONSPERYEAR	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_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))

#ifndef USG

/*
** Use of the underscored variants may cause problems if you move your code to
** certain System-V-based systems; for maximum portability, use the
** underscore-free variants.  The underscored variants are provided for
** backward compatibility only; they may disappear from future versions of
** this file.
*/

#define SECS_PER_MIN	SECSPERMIN
#define MINS_PER_HOUR	MINSPERHOUR
#define HOURS_PER_DAY	HOURSPERDAY
#define DAYS_PER_WEEK	DAYSPERWEEK
#define DAYS_PER_NYEAR	DAYSPERNYEAR
#define DAYS_PER_LYEAR	DAYSPERLYEAR
#define SECS_PER_HOUR	SECSPERHOUR
#define SECS_PER_DAY	SECSPERDAY
#define MONS_PER_YEAR	MONSPERYEAR

#endif /* !defined USG */

#endif /* !defined TZFILE_H */
Commit	Line	Data
1815bff5 A	1	/*
	2	* Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
6d658acd A	6	* Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
	7	*
	8	* This file contains Original Code and/or Modifications of Original Code
	9	* as defined in and that are subject to the Apple Public Source License
	10	* Version 2.0 (the 'License'). You may not use this file except in
	11	* compliance with the License. Please obtain a copy of the License at
	12	* http://www.opensource.apple.com/apsl/ and read it before using this
	13	* file.
1815bff5 A	14	*
	15	* The Original Code and all software distributed under the License are
	16	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	17	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	18	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
6d658acd A	19	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	20	* Please see the License for the specific language governing rights and
	21	* limitations under the License.
1815bff5 A	22	*
	23	* @APPLE_LICENSE_HEADER_END@
	24	*/
	25	/* $OpenBSD: tzfile.h,v 1.4 1997/01/14 03:16:52 millert Exp $ */
	26
	27	#ifndef TZFILE_H
	28
	29	#define TZFILE_H
	30
	31	/*
	32	** This file is in the public domain, so clarified as of
	33	** 1996-06-05 by Arthur David Olson (arthur_david_olson@nih.gov).
	34	*/
	35
	36	/*
	37	** This header is for use ONLY with the time conversion code.
	38	** There is no guarantee that it will remain unchanged,
	39	** or that it will remain at all.
	40	** Do NOT copy it to any system include directory.
	41	** Thank you!
	42	*/
	43
	44	/*
	45	** ID
	46	*/
	47
	48	#if 0
	49	#ifndef lint
	50	#ifndef NOID
	51	static char tzfilehid[] = "@(#)tzfile.h 7.9";
	52	#endif /* !defined NOID */
	53	#endif /* !defined lint */
	54	#endif
	55
	56	/*
	57	** Information about time zone files.
	58	*/
	59
	60	#ifndef TZDIR
	61	#define TZDIR "/usr/share/zoneinfo" /* Time zone object file directory */
	62	#endif /* !defined TZDIR */
	63
	64	#ifndef TZDEFAULT
	65	#define TZDEFAULT "/etc/localtime"
	66	#endif /* !defined TZDEFAULT */
	67
	68	#ifndef TZDEFRULES
	69	#define TZDEFRULES "posixrules"
	70	#endif /* !defined TZDEFRULES */
	71
	72	/*
	73	** Each file begins with. . .
	74	*/
	75
	76	struct tzhead {
	77	char tzh_reserved[20]; /* reserved for future use */
	78	char tzh_ttisgmtcnt[4]; /* coded number of trans. time flags */
	79	char tzh_ttisstdcnt[4]; /* coded number of trans. time flags */
	80	char tzh_leapcnt[4]; /* coded number of leap seconds */
	81	char tzh_timecnt[4]; /* coded number of transition times */
	82	char tzh_typecnt[4]; /* coded number of local time types */
	83	char tzh_charcnt[4]; /* coded number of abbr. chars */
	84	};
	85
86	/*
87	** . . .followed by. . .
88	**
89	** tzh_timecnt (char [4])s coded transition times a la time(2)
90	** tzh_timecnt (unsigned char)s types of local time starting at above
91	** tzh_typecnt repetitions of
92	** one (char [4]) coded GMT offset in seconds
93	** one (unsigned char) used to set tm_isdst
94	** one (unsigned char) that's an abbreviation list index
95	** tzh_charcnt (char)s '\0'-terminated zone abbreviations
96	** tzh_leapcnt repetitions of
97	** one (char [4]) coded leap second transition times
98	** one (char [4]) total correction after above
99	** tzh_ttisstdcnt (char)s indexed by type; if TRUE, transition
100	** time is standard time, if FALSE,
101	** transition time is wall clock time
102	** if absent, transition times are
103	** assumed to be wall clock time
104	** tzh_ttisgmtcnt (char)s indexed by type; if TRUE, transition
105	** time is GMT, if FALSE,
106	** transition time is local time
107	** if absent, transition times are
108	** assumed to be local time
109	*/
110
111	/*
112	** In the current implementation, "tzset()" refuses to deal with files that
113	** exceed any of the limits below.
114	*/
115
116	#ifndef TZ_MAX_TIMES
117	/*
118	** The TZ_MAX_TIMES value below is enough to handle a bit more than a
119	** year's worth of solar time (corrected daily to the nearest second) or
120	** 138 years of Pacific Presidential Election time
121	** (where there are three time zone transitions every fourth year).
122	*/
123	#define TZ_MAX_TIMES 370
124	#endif /* !defined TZ_MAX_TIMES */
125
126	#ifndef TZ_MAX_TYPES
127	#ifndef NOSOLAR
128	#define TZ_MAX_TYPES 256 /* Limited by what (unsigned char)'s can hold */
129	#endif /* !defined NOSOLAR */
130	#ifdef NOSOLAR
131	/*
132	** Must be at least 14 for Europe/Riga as of Jan 12 1995,
133	** as noted by Earl Chew <earl@hpato.aus.hp.com>.
134	*/
135	#define TZ_MAX_TYPES 20 /* Maximum number of local time types */
136	#endif /* !defined NOSOLAR */
137	#endif /* !defined TZ_MAX_TYPES */
138
139	#ifndef TZ_MAX_CHARS
140	#define TZ_MAX_CHARS 50 /* Maximum number of abbreviation characters */
141	/* (limited by what unsigned chars can hold) */
142	#endif /* !defined TZ_MAX_CHARS */
143
144	#ifndef TZ_MAX_LEAPS
145	#define TZ_MAX_LEAPS 50 /* Maximum number of leap second corrections */
146	#endif /* !defined TZ_MAX_LEAPS */
147
148	#define SECSPERMIN 60
149	#define MINSPERHOUR 60
150	#define HOURSPERDAY 24
151	#define DAYSPERWEEK 7
152	#define DAYSPERNYEAR 365
153	#define DAYSPERLYEAR 366
154	#define SECSPERHOUR (SECSPERMIN * MINSPERHOUR)
155	#define SECSPERDAY ((long) SECSPERHOUR * HOURSPERDAY)
156	#define MONSPERYEAR 12
157
158	#define TM_SUNDAY 0
159	#define TM_MONDAY 1
160	#define TM_TUESDAY 2
161	#define TM_WEDNESDAY 3
162	#define TM_THURSDAY 4
163	#define TM_FRIDAY 5
164	#define TM_SATURDAY 6
165
166	#define TM_JANUARY 0
167	#define TM_FEBRUARY 1
168	#define TM_MARCH 2
169	#define TM_APRIL 3
170	#define TM_MAY 4
171	#define TM_JUNE 5
172	#define TM_JULY 6
173	#define TM_AUGUST 7
174	#define TM_SEPTEMBER 8
175	#define TM_OCTOBER 9
176	#define TM_NOVEMBER 10
177	#define TM_DECEMBER 11
178
179	#define TM_YEAR_BASE 1900
180
181	#define EPOCH_YEAR 1970
182	#define EPOCH_WDAY TM_THURSDAY
183
184	/*
185	** Accurate only for the past couple of centuries;
186	** that will probably do.
187	*/
188
189	#define isleap(y) (((y) % 4) == 0 && (((y) % 100) != 0 \|\| ((y) % 400) == 0))
190
191	#ifndef USG
192
193	/*
194	** Use of the underscored variants may cause problems if you move your code to
195	** certain System-V-based systems; for maximum portability, use the
196	** underscore-free variants. The underscored variants are provided for
197	** backward compatibility only; they may disappear from future versions of
198	** this file.
199	*/
200
201	#define SECS_PER_MIN SECSPERMIN
202	#define MINS_PER_HOUR MINSPERHOUR
203	#define HOURS_PER_DAY HOURSPERDAY
204	#define DAYS_PER_WEEK DAYSPERWEEK
205	#define DAYS_PER_NYEAR DAYSPERNYEAR
206	#define DAYS_PER_LYEAR DAYSPERLYEAR
207	#define SECS_PER_HOUR SECSPERHOUR
208	#define SECS_PER_DAY SECSPERDAY
209	#define MONS_PER_YEAR MONSPERYEAR
210
211	#endif /* !defined USG */
212
213	#endif /* !defined TZFILE_H */