mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-09 23:00:07 +00:00
92bd70fb85
This patch updates files coming from tzcode to the versions in tzcode 2017b. A couple of changes to other glibc code are needed. time/tzset.c was using the SECSPERDAY macro from tzfile.h, which no longer defines that macro, so a local definition is added to tzset.c. Because timezone/private.h now defines the _ macro whenever HAVE_GETTEXT is true, even if it was previously defined, it is also necessary to avoid a conflict with the definition in include/libintl.h. Defining _ISOMAC is the obvious way to avoid such internal definitions being visible, together with defining TZ_DOMAIN so that zic and zdump continue to get the messages from the libc domain as desired. However, zic and zdump rely on PKGVERSION and REPORT_BUGS_TO from config.h, which is not included by default with _ISOMAC, so -include config.h needs adding to the options for these programs as well. Together those changes allow unmodified tzcode 2017b sources to work in glibc. Tested for x86_64. * timezone/private.h: Update from tzcode 2017b. * timezone/tzfile.h: Likewise. * timezone/tzselect.ksh: Likewise. * timezone/zdump.c: Likewise. * timezone/zic.c: Likewise. * timezone/Makefile (tz-cflags): Add -D_ISOMAC -DTZ_DOMAIN='"libc"' -include $(common-objpfx)config.h. * time/tzset.c (SECSPERDAY): New macro.
118 lines
3.7 KiB
C
118 lines
3.7 KiB
C
#ifndef TZFILE_H
|
|
|
|
#define TZFILE_H
|
|
|
|
/*
|
|
** This file is in the public domain, so clarified as of
|
|
** 1996-06-05 by Arthur David Olson.
|
|
*/
|
|
|
|
/*
|
|
** 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!
|
|
*/
|
|
|
|
/*
|
|
** Information about time zone files.
|
|
*/
|
|
|
|
#ifndef TZDIR
|
|
#define TZDIR "/usr/local/etc/zoneinfo" /* Time zone object file directory */
|
|
#endif /* !defined TZDIR */
|
|
|
|
#ifndef TZDEFAULT
|
|
#define TZDEFAULT "localtime"
|
|
#endif /* !defined TZDEFAULT */
|
|
|
|
#ifndef TZDEFRULES
|
|
#define TZDEFRULES "posixrules"
|
|
#endif /* !defined TZDEFRULES */
|
|
|
|
/*
|
|
** Each file begins with. . .
|
|
*/
|
|
|
|
#define TZ_MAGIC "TZif"
|
|
|
|
struct tzhead {
|
|
char tzh_magic[4]; /* TZ_MAGIC */
|
|
char tzh_version[1]; /* '\0' or '2' or '3' as of 2013 */
|
|
char tzh_reserved[15]; /* reserved; must be zero */
|
|
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 UT 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 1, transition
|
|
** time is standard time, if 0,
|
|
** 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 1, transition
|
|
** time is UT, if 0,
|
|
** transition time is local time
|
|
** if absent, transition times are
|
|
** assumed to be local time
|
|
*/
|
|
|
|
/*
|
|
** If tzh_version is '2' or greater, the above is followed by a second instance
|
|
** of tzhead and a second instance of the data in which each coded transition
|
|
** time uses 8 rather than 4 chars,
|
|
** then a POSIX-TZ-environment-variable-style string for use in handling
|
|
** instants after the last transition time stored in the file
|
|
** (with nothing between the newlines if there is no POSIX representation for
|
|
** such instants).
|
|
**
|
|
** If tz_version is '3' or greater, the above is extended as follows.
|
|
** First, the POSIX TZ string's hour offset may range from -167
|
|
** through 167 as compared to the POSIX-required 0 through 24.
|
|
** Second, its DST start time may be January 1 at 00:00 and its stop
|
|
** time December 31 at 24:00 plus the difference between DST and
|
|
** standard time, indicating DST all year.
|
|
*/
|
|
|
|
/*
|
|
** In the current implementation, "tzset()" refuses to deal with files that
|
|
** exceed any of the limits below.
|
|
*/
|
|
|
|
#ifndef TZ_MAX_TIMES
|
|
#define TZ_MAX_TIMES 2000
|
|
#endif /* !defined TZ_MAX_TIMES */
|
|
|
|
#ifndef TZ_MAX_TYPES
|
|
/* This must be at least 17 for Europe/Samara and Europe/Vilnius. */
|
|
#define TZ_MAX_TYPES 256 /* Limited by what (unsigned char)'s can hold */
|
|
#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 */
|
|
|
|
#endif /* !defined TZFILE_H */
|