+/* $NetBSD: tzfile.h,v 1.6 1998/07/30 14:11:22 kleink Exp $ */
+
/*
- * Copyright (c) 1988 Regents of the University of California.
- * All rights reserved.
+ * Copyright (c) 1988, 1993
+ * The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Arthur David Olson of the National Cancer Institute.
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
- * @(#)tzfile.h 5.10 (Berkeley) 4/3/91
+ * @(#)tzfile.h 8.1 (Berkeley) 6/2/93
*/
#ifndef _TZFILE_H_
** Each file begins with. . .
*/
+#define TZ_MAGIC "TZif"
+
struct tzhead {
- char tzh_reserved[24]; /* reserved for future use */
+ char tzh_magic[4]; /* TZ_MAGIC */
+ char tzh_reserved[16]; /* 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 */
** 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 (char [4]) coded UTC 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
** 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 UTC, if FALSE,
+** transition time is wall clock time
+** if absent, transition times are
+** assumed to be local time
*/
/*
** that will probably do.
*/
-#define isleap(y) (((y) % 4) == 0 && ((y) % 100) != 0 || ((y) % 400) == 0)
+#define isleap(y) ((((y) % 4) == 0 && ((y) % 100) != 0) || ((y) % 400) == 0)
#endif /* !_TZFILE_H_ */