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

/*
 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * "Portions Copyright (c) 1999 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 1.0 (the 'License').  You may not use this file
 * except in compliance with the License.  Please obtain a copy of the
 * License at http://www.apple.com/publicsource 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 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	*
d904471c A	6	* "Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
	7	* Reserved. This file contains Original Code and/or Modifications of
	8	* Original Code as defined in and that are subject to the Apple Public
	9	* Source License Version 1.0 (the 'License'). You may not use this file
	10	* except in compliance with the License. Please obtain a copy of the
	11	* License at http://www.apple.com/publicsource and read it before using
	12	* this file.
1815bff5 A	13	*
	14	* The Original Code and all software distributed under the License are
	15	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	16	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	17	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
d904471c A	18	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	19	* License for the specific language governing rights and limitations
	20	* under the License."
1815bff5 A	21	*
	22	* @APPLE_LICENSE_HEADER_END@
	23	*/
	24	/* $OpenBSD: tzfile.h,v 1.4 1997/01/14 03:16:52 millert Exp $ */
	25
	26	#ifndef TZFILE_H
	27
	28	#define TZFILE_H
	29
	30	/*
	31	** This file is in the public domain, so clarified as of
	32	** 1996-06-05 by Arthur David Olson (arthur_david_olson@nih.gov).
	33	*/
	34
	35	/*
	36	** This header is for use ONLY with the time conversion code.
	37	** There is no guarantee that it will remain unchanged,
	38	** or that it will remain at all.
	39	** Do NOT copy it to any system include directory.
	40	** Thank you!
	41	*/
	42
	43	/*
	44	** ID
	45	*/
	46
	47	#if 0
	48	#ifndef lint
	49	#ifndef NOID
	50	static char tzfilehid[] = "@(#)tzfile.h 7.9";
	51	#endif /* !defined NOID */
	52	#endif /* !defined lint */
	53	#endif
	54
	55	/*
	56	** Information about time zone files.
	57	*/
	58
	59	#ifndef TZDIR
	60	#define TZDIR "/usr/share/zoneinfo" /* Time zone object file directory */
	61	#endif /* !defined TZDIR */
	62
	63	#ifndef TZDEFAULT
	64	#define TZDEFAULT "/etc/localtime"
	65	#endif /* !defined TZDEFAULT */
	66
	67	#ifndef TZDEFRULES
	68	#define TZDEFRULES "posixrules"
	69	#endif /* !defined TZDEFRULES */
	70
	71	/*
	72	** Each file begins with. . .
	73	*/
	74
	75	struct tzhead {
	76	char tzh_reserved[20]; /* reserved for future use */
	77	char tzh_ttisgmtcnt[4]; /* coded number of trans. time flags */
	78	char tzh_ttisstdcnt[4]; /* coded number of trans. time flags */
	79	char tzh_leapcnt[4]; /* coded number of leap seconds */
	80	char tzh_timecnt[4]; /* coded number of transition times */
	81	char tzh_typecnt[4]; /* coded number of local time types */
	82	char tzh_charcnt[4]; /* coded number of abbr. chars */
	83	};
	84
85	/*
86	** . . .followed by. . .
87	**
88	** tzh_timecnt (char [4])s coded transition times a la time(2)
89	** tzh_timecnt (unsigned char)s types of local time starting at above
90	** tzh_typecnt repetitions of
91	** one (char [4]) coded GMT offset in seconds
92	** one (unsigned char) used to set tm_isdst
93	** one (unsigned char) that's an abbreviation list index
94	** tzh_charcnt (char)s '\0'-terminated zone abbreviations
95	** tzh_leapcnt repetitions of
96	** one (char [4]) coded leap second transition times
97	** one (char [4]) total correction after above
98	** tzh_ttisstdcnt (char)s indexed by type; if TRUE, transition
99	** time is standard time, if FALSE,
100	** transition time is wall clock time
101	** if absent, transition times are
102	** assumed to be wall clock time
103	** tzh_ttisgmtcnt (char)s indexed by type; if TRUE, transition
104	** time is GMT, if FALSE,
105	** transition time is local time
106	** if absent, transition times are
107	** assumed to be local time
108	*/
109
110	/*
111	** In the current implementation, "tzset()" refuses to deal with files that
112	** exceed any of the limits below.
113	*/
114
115	#ifndef TZ_MAX_TIMES
116	/*
117	** The TZ_MAX_TIMES value below is enough to handle a bit more than a
118	** year's worth of solar time (corrected daily to the nearest second) or
119	** 138 years of Pacific Presidential Election time
120	** (where there are three time zone transitions every fourth year).
121	*/
122	#define TZ_MAX_TIMES 370
123	#endif /* !defined TZ_MAX_TIMES */
124
125	#ifndef TZ_MAX_TYPES
126	#ifndef NOSOLAR
127	#define TZ_MAX_TYPES 256 /* Limited by what (unsigned char)'s can hold */
128	#endif /* !defined NOSOLAR */
129	#ifdef NOSOLAR
130	/*
131	** Must be at least 14 for Europe/Riga as of Jan 12 1995,
132	** as noted by Earl Chew <earl@hpato.aus.hp.com>.
133	*/
134	#define TZ_MAX_TYPES 20 /* Maximum number of local time types */
135	#endif /* !defined NOSOLAR */
136	#endif /* !defined TZ_MAX_TYPES */
137
138	#ifndef TZ_MAX_CHARS
139	#define TZ_MAX_CHARS 50 /* Maximum number of abbreviation characters */
140	/* (limited by what unsigned chars can hold) */
141	#endif /* !defined TZ_MAX_CHARS */
142
143	#ifndef TZ_MAX_LEAPS
144	#define TZ_MAX_LEAPS 50 /* Maximum number of leap second corrections */
145	#endif /* !defined TZ_MAX_LEAPS */
146
147	#define SECSPERMIN 60
148	#define MINSPERHOUR 60
149	#define HOURSPERDAY 24
150	#define DAYSPERWEEK 7
151	#define DAYSPERNYEAR 365
152	#define DAYSPERLYEAR 366
153	#define SECSPERHOUR (SECSPERMIN * MINSPERHOUR)
154	#define SECSPERDAY ((long) SECSPERHOUR * HOURSPERDAY)
155	#define MONSPERYEAR 12
156
157	#define TM_SUNDAY 0
158	#define TM_MONDAY 1
159	#define TM_TUESDAY 2
160	#define TM_WEDNESDAY 3
161	#define TM_THURSDAY 4
162	#define TM_FRIDAY 5
163	#define TM_SATURDAY 6
164
165	#define TM_JANUARY 0
166	#define TM_FEBRUARY 1
167	#define TM_MARCH 2
168	#define TM_APRIL 3
169	#define TM_MAY 4
170	#define TM_JUNE 5
171	#define TM_JULY 6
172	#define TM_AUGUST 7
173	#define TM_SEPTEMBER 8
174	#define TM_OCTOBER 9
175	#define TM_NOVEMBER 10
176	#define TM_DECEMBER 11
177
178	#define TM_YEAR_BASE 1900
179
180	#define EPOCH_YEAR 1970
181	#define EPOCH_WDAY TM_THURSDAY
182
183	/*
184	** Accurate only for the past couple of centuries;
185	** that will probably do.
186	*/
187
188	#define isleap(y) (((y) % 4) == 0 && (((y) % 100) != 0 \|\| ((y) % 400) == 0))
189
190	#ifndef USG
191
192	/*
193	** Use of the underscored variants may cause problems if you move your code to
194	** certain System-V-based systems; for maximum portability, use the
195	** underscore-free variants. The underscored variants are provided for
196	** backward compatibility only; they may disappear from future versions of
197	** this file.
198	*/
199
200	#define SECS_PER_MIN SECSPERMIN
201	#define MINS_PER_HOUR MINSPERHOUR
202	#define HOURS_PER_DAY HOURSPERDAY
203	#define DAYS_PER_WEEK DAYSPERWEEK
204	#define DAYS_PER_NYEAR DAYSPERNYEAR
205	#define DAYS_PER_LYEAR DAYSPERLYEAR
206	#define SECS_PER_HOUR SECSPERHOUR
207	#define SECS_PER_DAY SECSPERDAY
208	#define MONS_PER_YEAR MONSPERYEAR
209
210	#endif /* !defined USG */
211
212	#endif /* !defined TZFILE_H */