Merge commit 'refs/top-bases/linux-configure-branch' into linux-configure-branch

lib/libspl/include/sys/tzfile.h

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+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+/*
+ *	from Arthur Olson's 6.1
+ */
+
+#ifndef _LIBSPL_SYS_TZFILE_H
+#define	_LIBSPL_SYS_TZFILE_H
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+/*
+ * Information about time zone files.
+ */
+
+#define	TZDIR	"/usr/share/lib/zoneinfo" /* Time zone object file directory */
+
+#define	TZDEFAULT	(getenv("TZ"))
+
+#define	TZDEFRULES	"posixrules"
+
+/*
+ * Each file begins with. . .
+ */
+
+struct tzhead {
+	char	tzh_reserved[24];	/* reserved for future use */
+	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
+ */
+
+/*
+ * 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
+
+#define	TZ_MAX_TYPES	256	/* Limited by what (unsigned char)'s can hold */
+
+#define	TZ_MAX_CHARS	50	/* Maximum number of abbreviation characters */
+
+#define	TZ_MAX_LEAPS	50	/* Maximum number of leap second corrections */
+
+#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)
+
+/*
+ * 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
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif /* _LIBSPL_SYS_TZFILE_H */