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CVS log for src/lib/libc/time/zdump.c

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Default branch: MAIN
Current tag: MAIN


Revision 1.53 / (download) - annotate - [select for diffs], Mon May 25 14:52:48 2020 UTC (6 months ago) by christos
Branch: MAIN
CVS Tags: HEAD
Changes since 1.52: +5 -5 lines
Diff to previous 1.52 (colored)

Bring in 2020a

Revision 1.52 / (download) - annotate - [select for diffs], Sun Jan 27 02:08:35 2019 UTC (21 months, 4 weeks ago) by pgoyette
Branch: MAIN
CVS Tags: phil-wifi-20200421, phil-wifi-20200411, phil-wifi-20200406, phil-wifi-20191119, phil-wifi-20190609, netbsd-9-base, netbsd-9-1-RELEASE, netbsd-9-0-RELEASE, netbsd-9-0-RC2, netbsd-9-0-RC1, netbsd-9, is-mlppp-base, is-mlppp
Changes since 1.51: +2 -2 lines
Diff to previous 1.51 (colored)

Merge the [pgoyette-compat] branch

Revision 1.51 / (download) - annotate - [select for diffs], Tue Jan 1 03:04:56 2019 UTC (22 months, 3 weeks ago) by christos
Branch: MAIN
CVS Tags: pgoyette-compat-20190127, pgoyette-compat-20190118
Changes since 1.50: +5 -3 lines
Diff to previous 1.50 (colored)

Release 2018i - 2018-12-30 11:05:43 -0800

  Briefly:
    São Tomé and Príncipe switches from +01 to +00 on 2019-01-01.

  Changes to future timestamps

    Due to a change in government, São Tomé and Príncipe switches back
    from +01 to +00 on 2019-01-01 at 02:00.  (Thanks to Vadim
    Nasardinov and Michael Deckers.)


Release 2018h - 2018-12-23 17:59:32 -0800

  Briefly:
    Qyzylorda, Kazakhstan moved from +06 to +05 on 2018-12-21.
    New zone Asia/Qostanay because Qostanay, Kazakhstan didn't move.
    Metlakatla, Alaska observes PST this winter only.
    Guess Morocco will continue to adjust clocks around Ramadan.
    Add predictions for Iran from 2038 through 2090.

  Changes to future timestamps

    Guess that Morocco will continue to fall back just before and
    spring forward just after Ramadan, the practice since 2012.
    (Thanks to Maamar Abdelkader.)  This means Morocco will observe
    negative DST during Ramadan in main and vanguard formats, and in
    rearguard format it stays in the +00 timezone and observes
    ordinary DST in all months other than Ramadan.  As before, extend
    this guesswork to the year 2037.  As a consequence, Morocco is
    scheduled to observe three DST transitions in some Gregorian years
    (e.g., 2033) due to the mismatch between the Gregorian and Islamic
    calendars.

    The table of exact transitions for Iranian DST has been extended.
    It formerly cut off before the year 2038 in a nod to 32-bit time_t.
    It now cuts off before 2091 as there is doubt about how the Persian
    calendar will treat 2091.  This change predicts DST transitions in
    2038-9, 2042-3, and 2046-7 to occur one day later than previously
    predicted.  As before, post-cutoff transitions are approximated.

  Changes to past and future timestamps

    Qyzylorda (aka Kyzylorda) oblast in Kazakhstan moved from +06 to
    +05 on 2018-12-21.  This is a zone split as Qostanay (aka
    Kostanay) did not switch, so create a zone Asia/Qostanay.

    Metlakatla moved from Alaska to Pacific standard time on 2018-11-04.
    It did not change clocks that day and remains on -08 this winter.
    (Thanks to Ryan Stanley.)  It will revert to the usual Alaska
    rules next spring, so this change affects only timestamps
    from 2018-11-04 through 2019-03-10.

  Change to past timestamps

    Kwajalein's 1993-08-20 transition from -12 to +12 was at 24:00,
    not 00:00.  I transcribed the time incorrectly from Shanks.
    (Thanks to Phake Nick.)

    Nauru's 1979 transition was on 02-10 at 02:00, not 05-01 at 00:00.
    (Thanks to Phake Nick.)

    Guam observed DST irregularly from 1959 through 1977.
    (Thanks to Phake Nick.)

    Hong Kong observed DST in 1941 starting 06-15 (not 04-01), then on
    10-01 changed standard time to +08:30 (not +08).  Its transition
    back to +08 after WWII was on 1945-09-15, not the previous day.
    Its 1904-10-30 change took effect at 01:00 +08 (not 00:00 LMT).
    (Thanks to Phake Nick, Steve Allen, and Joseph Myers.)  Also,
    its 1952 fallback was on 11-02 (not 10-25).

    This release contains many changes to timestamps before 1946 due
    to Japanese possession or occupation of Pacific/Chuuk,
    Pacific/Guam, Pacific/Kosrae, Pacific/Kwajalein, Pacific/Majuro,
    Pacific/Nauru, Pacific/Palau, and Pacific/Pohnpei.
    (Thanks to Phake Nick.)

    Assume that the Spanish East Indies was like the Philippines and
    observed American time until the end of 1844.  This affects
    Pacific/Chuuk, Pacific/Kosrae, Pacific/Palau, and Pacific/Pohnpei.

  Changes to past tm_isdst flags

    For the recent Morocco change, the tm_isdst flag should be 1 from
    2018-10-27 00:00 to 2018-10-28 03:00.  (Thanks to Michael Deckers.)
    Give a URL to the official decree.  (Thanks to Matt Johnson.)

Revision 1.50 / (download) - annotate - [select for diffs], Fri Oct 19 23:05:35 2018 UTC (2 years, 1 month ago) by christos
Branch: MAIN
CVS Tags: pgoyette-compat-1226, pgoyette-compat-1126, pgoyette-compat-1020
Changes since 1.49: +5 -3 lines
Diff to previous 1.49 (colored)

Update to 2018f:

  Changes to code

    zic now always generates TZif files where time type 0 is used for
    timestamps before the first transition.  This simplifies the
    reading of TZif files and should not affect behavior of existing
    TZif readers because the same set of time types is used; only
    their internal indexes may have changed.  This affects only the
    legacy zones EST5EDT, CST6CDT, MST7MDT, PST8PDT, CET, MET, and
    EET, which previously used nonzero types for these timestamps.

    Because of the type 0 change, zic no longer outputs a dummy
    transition at time -2**59 (before the Big Bang), as clients should
    no longer need this to handle historical timestamps correctly.
    This reverts a change introduced in 2013d and shrinks most TZif
    files by a few bytes.

    zic now supports negative time-of-day in Rule and Leap lines, e.g.,
    "Rule X min max - Apr lastSun -6:00 1:00 -" means the transition
    occurs at 18:00 on the Saturday before the last Sunday in April.
    This behavior was documented in 2018a but the code did not
    entirely match the documentation.

    localtime.c no longer requires at least one time type in TZif
    files that lack transitions or have a POSIX-style TZ string.  This
    future-proofs the code against possible future extensions to the
    format that would allow TZif files with POSIX-style TZ strings and
    without transitions or time types.

    A read-access subscript error in localtime.c has been fixed.
    It could occur only in TZif files with timecnt == 0, something that
    does not happen in practice now but could happen in future versions.

    localtime.c no longer ignores TZif POSIX-style TZ strings that
    specify only standard time.  Instead, these TZ strings now
    override the default time type for timestamps after the last
    transition (or for all time stamps if there are no transitions),
    just as DST strings specifying DST have always done.

    leapseconds.awk now outputs "#updated" and "#expires" comments,
    and supports leap seconds at the ends of months other than June
    and December.  (Inspired by suggestions from Chris Woodbury.)

  Changes to documentation

    New restrictions: A Rule name must start with a character that
    is neither an ASCII digit nor "-" nor "+", and an unquoted name
    should not use characters in the set "!$%&'()*,/:;<=>?@[\]^`{|}~".
    The latter restriction makes room for future extensions (a
    possibility noted by Tom Lane).

    tzfile.5 now documents what time types apply before the first and
    after the last transition, if any.

    Documentation now uses the spelling "timezone" for a TZ setting
    that determines timestamp history, and "time zone" for a
    geographic region currently sharing the same standard time.

    The name "TZif" is now used for the tz binary data format.

    tz-link.htm now mentions the A0 TimeZone Migration utilities.
    (Thanks to Aldrin Martoq for the link.)

Revision 1.49 / (download) - annotate - [select for diffs], Fri May 4 15:51:00 2018 UTC (2 years, 6 months ago) by christos
Branch: MAIN
CVS Tags: phil-wifi-base, pgoyette-compat-0930, pgoyette-compat-0906, pgoyette-compat-0728, pgoyette-compat-0625, pgoyette-compat-0521
Branch point for: phil-wifi
Changes since 1.48: +3 -13 lines
Diff to previous 1.48 (colored)

Merge 2018e

  Changes to code

    zic now accepts subsecond precision in expressions like
    00:19:32.13, which is approximately the legal time of the
    Netherlands from 1835 to 1937.  However, because it is
    questionable whether the few recorded uses of non-integer offsets
    had subsecond precision in practice, there are no plans for tzdata
    to use this feature.  (Thanks to Steve Allen for pointing out
    the limitations of historical data in this area.)

    The code is a bit more portable to MS-Windows.  Installers can
    compile with -DRESERVE_STD_EXT_IDS on MS-Windows platforms that
    reserve identifiers like 'localtime'.  (Thanks to Manuela
    Friedrich).

  Changes to documentation and commentary

    theory.html now outlines tzdb's extensions to POSIX's model for
    civil time, and has a section "POSIX features no longer needed"
    that lists POSIX API components that are now vestigial.
    (From suggestions by Steve Summit.)  It also better distinguishes
    time zones from tz regions.  (From a suggestion by Guy Harris.)

    Commentary is now more consistent about using the phrase "daylight
    saving time", to match the C name tm_isdst.  Daylight saving time
    need not occur in summer, and need not have a positive offset from
    standard time.

    Commentary about historical transitions in Uruguay has been expanded
    with links to many relevant legal documents.
    (Thanks to Tim Parenti.)

    Commentary now uses some non-ASCII characters with Unicode value
    less than U+0100, as they can be useful and should work even with
    older editors such as XEmacs.

Revision 1.48 / (download) - annotate - [select for diffs], Thu Jan 25 22:48:42 2018 UTC (2 years, 9 months ago) by christos
Branch: MAIN
CVS Tags: pgoyette-compat-base, pgoyette-compat-0502, pgoyette-compat-0422, pgoyette-compat-0415, pgoyette-compat-0407, pgoyette-compat-0330, pgoyette-compat-0322, pgoyette-compat-0315
Branch point for: pgoyette-compat
Changes since 1.47: +30 -27 lines
Diff to previous 1.47 (colored)

Merge tzcode2018c [ changelog with changes to tzdata sections removed ]

Release 2018c - 2018-01-22 23:00:44 -0800

  Changes to build procedure

    The build procedure now works around mawk 1.3.3's lack of support
    for character class expressions.  (Problem reported by Ohyama.)


Release 2018b - 2018-01-17 23:24:48 -0800

  Changes to build procedure

    The distribution now contains the file 'pacificnew' again.
    This file was inadvertantly omitted in the 2018a distribution.
    (Problem reported by Matias Fonzo.)


Release 2018a - 2018-01-12 22:29:21 -0800

  Changes to build procedure

    The default installation locations have been changed to mostly
    match Debian circa 2017, instead of being designed as an add-on to
    4.3BSD circa 1986.  This affects the Makefile macros TOPDIR,
    TZDIR, MANDIR, and LIBDIR.  New Makefile macros TZDEFAULT, USRDIR,
    USRSHAREDIR, BINDIR, ZDUMPDIR, and ZICDIR let installers tailor
    locations more precisely.  (This responds to suggestions from
    Brian Inglis and from Steve Summit.)

    The default installation procedure no longer creates the
    backward-compatibility link US/Pacific-New, which causes
    confusion during user setup (e.g., see Debian bug 815200).
    Use 'make BACKWARD="backward pacificnew"' to create the link
    anyway, for now.  Eventually we plan to remove the link entirely.

    tzdata.zi now contains a version-number comment.
    (Suggested by Tom Lane.)

    The Makefile now quotes values like BACKWARD more carefully when
    passing them to the shell.  (Problem reported by Zefram.)

    Builders no longer need to specify -DHAVE_SNPRINTF on platforms
    that have snprintf and use pre-C99 compilers.  (Problem reported
    by Jon Skeet.)

  Changes to code

    zic has a new option -t FILE that specifies the location of the
    file that determines local time when TZ is unset.  The default for
    this location can be configured via the new TZDEFAULT makefile
    macro, which defaults to /etc/localtime.

    Diagnostics and commentary now distinguish UT from UTC more
    carefully; see theory.html for more information about UT vs UTC.

    zic has been ported to GCC 8's -Wstringop-truncation option.
    (Problem reported by Martin Sebor.)

  Changes to documentation and commentary

    The zic man page now documents the longstanding behavior that
    times and years can be out of the usual range, with negative times
    counting backwards from midnight and with year 0 preceding year 1.
    (Problem reported by Michael Deckers.)

    The theory.html file now mentions the POSIX limit of six chars
    per abbreviation, and lists alphabetic abbreviations used.

    The files tz-art.htm and tz-link.htm have been renamed to
    tz-art.html and tz-link.html, respectively, for consistency with
    other file names and to simplify web server configuration.

Revision 1.47 / (download) - annotate - [select for diffs], Tue Oct 24 17:38:17 2017 UTC (3 years, 1 month ago) by christos
Branch: MAIN
Changes since 1.46: +57 -15 lines
Diff to previous 1.46 (colored)

Welcome to 2017c:

    zic and the reference runtime now reject multiple leap seconds
    within 28 days of each other, or leap seconds before the Epoch.
    As a result, support for double leap seconds, which was
    obsolescent and undocumented, has been removed.  Double leap
    seconds were an error in the C89 standard; they have never existed
    in civil timekeeping.  (Thanks to Robert Elz and Bradley White for
    noticing glitches in the code that uncovered this problem.)

    zic now warns about use of the obsolescent and undocumented -y
    option, and about use of the obsolescent TYPE field of Rule lines.

    zic now allows unambiguous abbreviations like "Sa" and "Su" for
    weekdays; formerly it rejected them due to a bug.  Conversely, zic
    no longer considers non-prefixes to be abbreviations; for example,
    it no longer accepts "lF" as an abbreviation for "lastFriday".
    Also, zic warns about the undocumented usage with a "last-"
    prefix, e.g., "last-Fri".

    Similarly, zic now accepts the unambiguous abbreviation "L" for
    "Link" in ordinary context and for "Leap" in leap-second context.
    Conversely, zic no longer accepts non-prefixes such as "La" as
    abbreviations for words like "Leap".

    zic no longer accepts leap second lines in ordinary input, or
    ordinary lines in leap second input.  Formerly, zic sometimes
    warned about this undocumented usage and handled it incorrectly.

    The new macro HAVE_TZNAME governs whether the tzname external
    variable is exported, instead of USG_COMPAT.  USG_COMPAT now
    governs only the external variables "timezone" and "daylight".
    This change is needed because the three variables are not in the
    same category: although POSIX requires tzname, it specifies the
    other two variables as optional.  Also, USG_COMPAT is now 1 or 0:
    if not defined, the code attempts to guess it from other macros.

    localtime.c and difftime.c no longer require stdio.h, and .c files
    other than zic.c no longer require sys/wait.h.

    zdump.c no longer assumes snprintf.  (Reported by Jonathan Leffler.)

    Calculation of time_t extrema works around a bug in GCC 4.8.4
    (Reported by Stan Shebs and Joseph Myers.)

    zic.c no longer mistranslates formats of line numbers in non-English
    locales.  (Problem reported by Benno Schulenberg.)

    Several minor changes have been made to the code to make it a
    bit easier to port to MS-Windows and Solaris.  (Thanks to Kees
    Dekker for reporting the problems.)

  Changes to documentation and commentary

    The two new files 'theory.html' and 'calendars' contain the
    contents of the removed file 'Theory'.  The goal is to document
    tzdb theory more accessibly.

    The zic man page now documents abbreviation rules.

    tz-link.htm now covers how to apply tzdata changes to clients.
    (Thanks to Jorge Fábregas for the AIX link.)  It also mentions MySQL.

    The leap-seconds.list URL has been updated to something that is
    more reliable for tzdb.  (Thanks to Tim Parenti and Brian Inglis.)

Revision 1.46 / (download) - annotate - [select for diffs], Sat Mar 11 18:23:14 2017 UTC (3 years, 8 months ago) by christos
Branch: MAIN
CVS Tags: prg-localcount2-base3, prg-localcount2-base2, prg-localcount2-base1, prg-localcount2-base, prg-localcount2, pgoyette-localcount-20170426, pgoyette-localcount-20170320, perseant-stdc-iso10646-base, perseant-stdc-iso10646, netbsd-8-base, netbsd-8-2-RELEASE, netbsd-8-1-RELEASE, netbsd-8-1-RC1, netbsd-8-0-RELEASE, netbsd-8-0-RC2, netbsd-8-0-RC1, netbsd-8, matt-nb8-mediatek-base, matt-nb8-mediatek, bouyer-socketcan-base1
Changes since 1.45: +15 -210 lines
Diff to previous 1.45 (colored)

merge 2017a

Revision 1.45 / (download) - annotate - [select for diffs], Thu Oct 20 17:41:34 2016 UTC (4 years, 1 month ago) by christos
Branch: MAIN
CVS Tags: pgoyette-localcount-20170107, pgoyette-localcount-20161104, bouyer-socketcan-base
Branch point for: bouyer-socketcan
Changes since 1.44: +3 -3 lines
Diff to previous 1.44 (colored)

welcome to 2016h

Revision 1.44 / (download) - annotate - [select for diffs], Fri Oct 7 15:29:42 2016 UTC (4 years, 1 month ago) by christos
Branch: MAIN
Changes since 1.43: +317 -63 lines
Diff to previous 1.43 (colored)

merge tzcode2016g

Revision 1.43 / (download) - annotate - [select for diffs], Tue Mar 15 15:16:01 2016 UTC (4 years, 8 months ago) by christos
Branch: MAIN
CVS Tags: pgoyette-localcount-base, pgoyette-localcount-20160806, pgoyette-localcount-20160726, localcount-20160914
Branch point for: pgoyette-localcount
Changes since 1.42: +5 -2 lines
Diff to previous 1.42 (colored)

Sync with 2016b

Revision 1.42 / (download) - annotate - [select for diffs], Thu Aug 13 11:21:18 2015 UTC (5 years, 3 months ago) by christos
Branch: MAIN
Changes since 1.41: +13 -19 lines
Diff to previous 1.41 (colored)

merge 2015f

Revision 1.41 / (download) - annotate - [select for diffs], Sun Jun 21 16:06:51 2015 UTC (5 years, 5 months ago) by christos
Branch: MAIN
Changes since 1.40: +6 -4 lines
Diff to previous 1.40 (colored)

merge tzcode2015e:

  Changes affecting code

    When displaying data, tzselect converts it to the current locale's
    encoding if the iconv command works.  (Problem reported by random832.)

    tzselect no longer mishandles Dominica, fixing a bug introduced
    in Release 2014f.  (Problem reported by Owen Leibman.)

    zic -l no longer fails when compiled with -DTZDEFAULT=\"/etc/localtime\".
    This fixes a bug introduced in Release 2014f.
    (Problem reported by Leonardo Chiquitto.)

Revision 1.40 / (download) - annotate - [select for diffs], Thu Oct 23 21:19:53 2014 UTC (6 years, 1 month ago) by christos
Branch: MAIN
Changes since 1.39: +2 -3 lines
Diff to previous 1.39 (colored)

remove stray endif

Revision 1.39 / (download) - annotate - [select for diffs], Thu Oct 23 18:45:58 2014 UTC (6 years, 1 month ago) by christos
Branch: MAIN
Changes since 1.38: +4 -3 lines
Diff to previous 1.38 (colored)

merge 2014i

Revision 1.38 / (download) - annotate - [select for diffs], Wed Oct 8 13:13:34 2014 UTC (6 years, 1 month ago) by martin
Branch: MAIN
Changes since 1.37: +3 -3 lines
Diff to previous 1.37 (colored)

Make yeartot() declaration match prototype.

Revision 1.37 / (download) - annotate - [select for diffs], Tue Oct 7 22:14:46 2014 UTC (6 years, 1 month ago) by christos
Branch: MAIN
Changes since 1.36: +2 -3 lines
Diff to previous 1.36 (colored)

remove version stuff

Revision 1.36 / (download) - annotate - [select for diffs], Tue Oct 7 21:51:03 2014 UTC (6 years, 1 month ago) by christos
Branch: MAIN
Changes since 1.35: +410 -147 lines
Diff to previous 1.35 (colored)

Sync with tzcode2014h

Revision 1.35 / (download) - annotate - [select for diffs], Sat Aug 16 16:22:21 2014 UTC (6 years, 3 months ago) by christos
Branch: MAIN
Changes since 1.34: +5 -5 lines
Diff to previous 1.34 (colored)

Reduce diffs with upstream by automatically defining INITIALIZE as it was
intended.

Revision 1.34 / (download) - annotate - [select for diffs], Fri Aug 15 11:04:07 2014 UTC (6 years, 3 months ago) by christos
Branch: MAIN
Changes since 1.33: +29 -25 lines
Diff to previous 1.33 (colored)

merge tzcode2014f via patch

Revision 1.33 / (download) - annotate - [select for diffs], Tue May 13 16:33:56 2014 UTC (6 years, 6 months ago) by christos
Branch: MAIN
CVS Tags: tls-maxphys-base, tls-earlyentropy-base, netbsd-7-base
Branch point for: netbsd-7
Changes since 1.32: +5 -3 lines
Diff to previous 1.32 (colored)

Welcome to 2014c
   Changes affecting code

     zic now generates transitions for minimum time values, eliminating
     guesswork when handling low-valued time stamps.  (Thanks to Arthur
     David Olson.)

     Port to Cygwin sans glibc.  (Thanks to Arthur David Olson.)

   Changes affecting commentary and documentation

     Remove now-confusing comment about Jordan.  (Thanks to Oleksii
     Nochovnyi.)

Revision 1.32 / (download) - annotate - [select for diffs], Thu Dec 26 18:34:28 2013 UTC (6 years, 11 months ago) by christos
Branch: MAIN
CVS Tags: yamt-pagecache-base9, riastradh-xf86-video-intel-2-7-1-pre-2-21-15, riastradh-drm2-base3
Branch point for: tls-earlyentropy
Changes since 1.31: +19 -14 lines
Diff to previous 1.31 (colored)

update from tzcode 2013e to tzcode2013i
i:
    The compile-time flag NOSOLAR has been removed, as nowadays the
    benefit of slightly shrinking runtime table size is outweighed by the
    cost of disallowing potential future updates that exceed old limits.
h:
    Fix localtime overflow bugs with 32-bit unsigned time_t.

    zdump no longer assumes sscanf returns maximal values on overflow.
g:
    'zic' now runs on platforms that lack both hard links and symlinks.
    (Thanks to Theo Veenker for reporting the problem, for MinGW.)
    Also, fix some bugs on platforms that lack hard links but have symlinks.

    'zic -v' again warns that Asia/Tehran has no POSIX environment variable
    to predict the far future, fixing a bug introduced in 2013e.
f:
    The types of the global variables 'timezone' and 'altzone' (if present)
    have been changed back to 'long'.  This is required for 'timezone'
    by POSIX, and for 'altzone' by common practice, e.g., Solaris 11.
    These variables were originally 'long' in the tz code, but were
    mistakenly changed to 'time_t' in 1987; nobody reported the
    incompatibility until now.  The difference matters on x32, where
    'long' is 32 bits and 'time_t' is 64.  (Thanks to Elliott Hughes.)

Revision 1.31 / (download) - annotate - [select for diffs], Fri Sep 20 19:06:54 2013 UTC (7 years, 2 months ago) by christos
Branch: MAIN
Changes since 1.30: +60 -62 lines
Diff to previous 1.30 (colored)

Welcome to tzcode 2013e:

  Changes affecting API

    The 'zic' command now outputs a dummy transition when far-future
    data can't be summarized using a TZ string, and uses a 402-year
    window rather than a 400-year window.  For the current data, this
    affects only the Asia/Tehran file.  It does not affect any of the
    time stamps that this file represents, so zdump outputs the same
    information as before.  (Thanks to Andrew Main (Zefram).)

    The 'date' command has a new '-r' option, which lets you specify
    the integer time to display, a la FreeBSD.

    The 'tzselect' command has two new options '-c' and '-n', which lets you
    select a zone based on latitude and longitude.

    The 'zic' command's '-v' option now warns about constructs that
    require the new version-3 binary file format.  (Thanks to Arthur
    David Olson for the suggestion.)

    Support for floating-point time_t has been removed.
    It was always dicey, and POSIX no longer requires it.
    (Thanks to Eric Blake for suggesting to the POSIX committee to
    remove it, and thanks to Alan Barrett, Clive D.W. Feather, Andy
    Heninger, Arthur David Olson, and Alois Treindl, for reporting
    bugs and elucidating some of the corners of the old floating-point
    implementation.)

    The signatures of 'offtime', 'timeoff', and 'gtime' have been
    changed back to the old practice of using 'long' to represent UT
    offsets.  This had been inadvertently and mistakenly changed to
    'int_fast32_t'.  (Thanks to Christos Zoulos.)

    The code avoids undefined behavior on integer overflow in some
    more places, including gmtime, localtime, mktime and zdump.

  Changes affecting the zdump utility

    zdump now outputs "UT" when referring to Universal Time, not "UTC".
    "UTC" does not make sense for time stamps that predate the introduction
    of UTC, whereas "UT", a more-generic term, does.  (Thanks to Steve Allen
    for clarifying UT vs UTC.)

  Data changes affecting behavior of tzselect and similar programs

    Country code BQ is now called the more-common name "Caribbean Netherlands"
    rather than the more-official "Bonaire, St Eustatius & Saba".

    Remove from zone.tab the names America/Montreal, America/Shiprock,
    and Antarctica/South_Pole, as they are equivalent to existing
    same-country-code zones for post-1970 time stamps.  The data for
    these names are unchanged, so the names continue to work as before.

  Changes affecting code internals

    zic -c now runs way faster on 64-bit hosts when given large numbers.

    zic now uses vfprintf to avoid allocating and freeing some memory.

    tzselect now computes the list of continents from the data,
    rather than have it hard-coded.

    Minor changes pacify GCC 4.7.3 and GCC 4.8.1.

  Changes affecting the build procedure

    The 'leapseconds' file is now generated automatically from a
    new file 'leap-seconds.list', which is a copy of
    <ftp://time.nist.gov/pub/leap-seconds.list>.
    A new source file 'leapseconds.awk' implements this.
    The goal is simplification of the future maintenance of 'leapseconds'.

    When building the 'posix' or 'right' subdirectories, if the
    subdirectory would be a copy of the default subdirectory, it is
    now made a symbolic link if that is supported.  This saves about
    2 MB of file system space.

    The links America/Shiprock and Antarctica/South_Pole have been
    moved to the 'backward' file.  This affects only nondefault builds
    that omit 'backward'.

  Changes affecting documentation and commentary

    Changes to the 'tzfile' man page

      It now mentions that the binary file format may be extended in
      future versions by appending data.

      It now refers to the 'zdump' and 'zic' man pages.

    Changes to the 'zic' man page

      It lists conditions that elicit a warning with '-v'.

      It says that the behavior is unspecified when duplicate names
      are given, or if the source of one link is the target of another.

      Its examples are updated to match the latest data.

      The definition of white space has been clarified slightly.
      (Thanks to Michael Deckers.)

    Changes to the 'Theory' file

      There is a new section about the accuracy of the tz database,
      describing the many ways that errors can creep in, and
      explaining why so many of the pre-1970 time stamps are wrong or
      misleading (thanks to Steve Allen, Lester Caine, and Garrett
      Wollman for discussions that contributed to this).

      The 'Theory' file describes LMT better (this follows a
      suggestion by Guy Harris).

      It refers to the 2013 edition of POSIX rather than the 2004 edition.

      It's mentioned that excluding 'backward' should not affect the
      other data, and it suggests at least one zone.tab name per
      inhabited country (thanks to Stephen Colebourne).

      Some longstanding restrictions on names are documented, e.g.,
      'America/New_York' precludes 'America/New_York/Bronx'.

      It gives more reasons for the 1970 cutoff.

      It now mentions which time_t variants are supported, such as
      signed integer time_t.  (Thanks to Paul Goyette for reporting
      typos in an experimental version of this change.)

      (Thanks to Philip Newton for correcting typos in these changes.)

    Documentation and commentary is more careful to distinguish UT in
    general from UTC in particular.  (Thanks to Steve Allen.)

    Add a better source for the Zurich 1894 transition.
    (Thanks to Pierre-Yves Berger.)

    Update shapefile citations in tz-link.htm.  (Thanks to Guy Harris.)

Revision 1.30 / (download) - annotate - [select for diffs], Wed Jul 17 23:09:26 2013 UTC (7 years, 4 months ago) by christos
Branch: MAIN
CVS Tags: riastradh-drm2-base2, riastradh-drm2-base1
Changes since 1.29: +4 -4 lines
Diff to previous 1.29 (colored)

remove "register" in new code
fix backwards check for overflow

Revision 1.29 / (download) - annotate - [select for diffs], Wed Jul 17 20:13:04 2013 UTC (7 years, 4 months ago) by christos
Branch: MAIN
Changes since 1.28: +171 -104 lines
Diff to previous 1.28 (colored)

welcome to 2013d

Revision 1.28 / (download) - annotate - [select for diffs], Sat Mar 2 21:24:28 2013 UTC (7 years, 8 months ago) by christos
Branch: MAIN
CVS Tags: riastradh-drm2-base, agc-symver-base, agc-symver
Branch point for: riastradh-drm2
Changes since 1.27: +5 -5 lines
Diff to previous 1.27 (colored)

update to tzcode2013a

Revision 1.27 / (download) - annotate - [select for diffs], Thu Jan 31 15:47:53 2013 UTC (7 years, 9 months ago) by christos
Branch: MAIN
Changes since 1.26: +4 -2 lines
Diff to previous 1.26 (colored)

include private.h to get access to TM_GMTOFF

Revision 1.26 / (download) - annotate - [select for diffs], Wed Oct 24 00:10:03 2012 UTC (8 years, 1 month ago) by christos
Branch: MAIN
CVS Tags: yamt-pagecache-base8, yamt-pagecache-base7, yamt-pagecache-base6
Changes since 1.25: +58 -61 lines
Diff to previous 1.25 (colored)

apply 2012g via patch

Revision 1.25 / (download) - annotate - [select for diffs], Thu Aug 9 12:38:26 2012 UTC (8 years, 3 months ago) by christos
Branch: MAIN
Branch point for: tls-maxphys
Changes since 1.24: +4 -7 lines
Diff to previous 1.24 (colored)

merge 2012e

Revision 1.24 / (download) - annotate - [select for diffs], Fri Sep 16 16:05:59 2011 UTC (9 years, 2 months ago) by joerg
Branch: MAIN
CVS Tags: yamt-pagecache-base5, yamt-pagecache-base4, yamt-pagecache-base3, yamt-pagecache-base2, yamt-pagecache-base, netbsd-6-base, netbsd-6-1-RELEASE, netbsd-6-1-RC4, netbsd-6-1-RC3, netbsd-6-1-RC2, netbsd-6-1-RC1, netbsd-6-1-5-RELEASE, netbsd-6-1-4-RELEASE, netbsd-6-1-3-RELEASE, netbsd-6-1-2-RELEASE, netbsd-6-1-1-RELEASE, netbsd-6-1, netbsd-6-0-RELEASE, netbsd-6-0-RC2, netbsd-6-0-RC1, netbsd-6-0-6-RELEASE, netbsd-6-0-5-RELEASE, netbsd-6-0-4-RELEASE, netbsd-6-0-3-RELEASE, netbsd-6-0-2-RELEASE, netbsd-6-0-1-RELEASE, netbsd-6-0, netbsd-6, matt-nb6-plus-nbase, matt-nb6-plus-base, matt-nb6-plus
Branch point for: yamt-pagecache
Changes since 1.23: +3 -3 lines
Diff to previous 1.23 (colored)

Use __dead

Revision 1.23 / (download) - annotate - [select for diffs], Sun Sep 4 13:25:22 2011 UTC (9 years, 2 months ago) by christos
Branch: MAIN
Changes since 1.22: +3 -3 lines
Diff to previous 1.22 (colored)

forgot to change one usage call.

Revision 1.22 / (download) - annotate - [select for diffs], Sun Sep 4 10:10:26 2011 UTC (9 years, 2 months ago) by christos
Branch: MAIN
Changes since 1.21: +6 -6 lines
Diff to previous 1.21 (colored)

bring in the 2011i changes.

Revision 1.21 / (download) - annotate - [select for diffs], Wed Aug 24 07:51:31 2011 UTC (9 years, 3 months ago) by christos
Branch: MAIN
Changes since 1.20: +4 -4 lines
Diff to previous 1.20 (colored)

remove unneeded casts

Revision 1.20 / (download) - annotate - [select for diffs], Tue Aug 16 07:51:46 2011 UTC (9 years, 3 months ago) by christos
Branch: MAIN
Changes since 1.19: +12 -5 lines
Diff to previous 1.19 (colored)

do the overflow check in a way that gcc-4.5 likes.

Revision 1.19 / (download) - annotate - [select for diffs], Sat Jan 15 12:31:57 2011 UTC (9 years, 10 months ago) by martin
Branch: MAIN
CVS Tags: cherry-xenmp-base, cherry-xenmp, bouyer-quota2-nbase, bouyer-quota2-base, bouyer-quota2
Changes since 1.18: +13 -18 lines
Diff to previous 1.18 (colored)

Backout previous, it breaks the build big time and causes e.g. date(1)
and top(1) to dump core.

Revision 1.18 / (download) - annotate - [select for diffs], Fri Jan 14 23:35:07 2011 UTC (9 years, 10 months ago) by christos
Branch: MAIN
Changes since 1.17: +20 -15 lines
Diff to previous 1.17 (colored)

don't depend on integer oveflow wrapping to detect it. From Paul Eggert in
the tz mailing list.

Revision 1.17 / (download) - annotate - [select for diffs], Thu Dec 31 22:49:16 2009 UTC (10 years, 10 months ago) by mlelstv
Branch: MAIN
CVS Tags: matt-mips64-premerge-20101231
Changes since 1.16: +426 -116 lines
Diff to previous 1.16 (colored)

Import tzcode2009k.
- now understands 64bit time_t and 64bit data in timezone files.
- localtime(), gmtime(), asctime() and ctime() may now fail with
  a NULL result if time_t cannot be represented by struct tm.

Revision 1.16 / (download) - annotate - [select for diffs], Mon Dec 4 17:24:40 2006 UTC (13 years, 11 months ago) by kleink
Branch: MAIN
CVS Tags: yamt-pf42-baseX, yamt-pf42-base4, yamt-pf42-base3, yamt-pf42-base2, yamt-pf42-base, yamt-pf42, wrstuden-revivesa-base-3, wrstuden-revivesa-base-2, wrstuden-revivesa-base-1, wrstuden-revivesa-base, wrstuden-revivesa, netbsd-5-base, netbsd-5-2-RELEASE, netbsd-5-2-RC1, netbsd-5-2-3-RELEASE, netbsd-5-2-2-RELEASE, netbsd-5-2-1-RELEASE, netbsd-5-2, netbsd-5-1-RELEASE, netbsd-5-1-RC4, netbsd-5-1-RC3, netbsd-5-1-RC2, netbsd-5-1-RC1, netbsd-5-1-5-RELEASE, netbsd-5-1-4-RELEASE, netbsd-5-1-3-RELEASE, netbsd-5-1-2-RELEASE, netbsd-5-1-1-RELEASE, netbsd-5-1, netbsd-5-0-RELEASE, netbsd-5-0-RC4, netbsd-5-0-RC3, netbsd-5-0-RC2, netbsd-5-0-RC1, netbsd-5-0-2-RELEASE, netbsd-5-0-1-RELEASE, netbsd-5-0, netbsd-5, mjf-devfs2-base, mjf-devfs2, matt-premerge-20091211, matt-nb5-pq3-base, matt-nb5-pq3, matt-nb5-mips64-u2-k2-k4-k7-k8-k9, matt-nb5-mips64-u1-k1-k5, matt-nb5-mips64-premerge-20101231, matt-nb5-mips64-premerge-20091211, matt-nb5-mips64-k15, matt-nb5-mips64, matt-nb4-mips64-k7-u2a-k9b, matt-mips64-base2, matt-mips64-base, matt-mips64, matt-armv6-prevmlocking, matt-armv6-nbase, matt-armv6-base, matt-armv6, keiichi-mipv6-base, keiichi-mipv6, jym-xensuspend-nbase, jym-xensuspend-base, jym-xensuspend, hpcarm-cleanup-nbase, hpcarm-cleanup-base, hpcarm-cleanup, cube-autoconf-base, cube-autoconf, christos-time_t-nbase, christos-time_t-base, christos-time_t
Changes since 1.15: +3 -3 lines
Diff to previous 1.15 (colored)

Restore i18n wrapping removed in previous.

Revision 1.15 / (download) - annotate - [select for diffs], Fri Nov 3 20:23:19 2006 UTC (14 years ago) by christos
Branch: MAIN
CVS Tags: wrstuden-fixsa-newbase, wrstuden-fixsa-base-1, wrstuden-fixsa-base, wrstuden-fixsa, netbsd-4-base, netbsd-4-0-RELEASE, netbsd-4-0-RC5, netbsd-4-0-RC4, netbsd-4-0-RC3, netbsd-4-0-RC2, netbsd-4-0-RC1, netbsd-4-0-1-RELEASE, netbsd-4-0, netbsd-4
Changes since 1.14: +7 -8 lines
Diff to previous 1.14 (colored)

nuke perror.

Revision 1.14 / (download) - annotate - [select for diffs], Wed Oct 29 20:43:27 2003 UTC (17 years, 1 month ago) by kleink
Branch: MAIN
CVS Tags: netbsd-3-base, netbsd-3-1-RELEASE, netbsd-3-1-RC4, netbsd-3-1-RC3, netbsd-3-1-RC2, netbsd-3-1-RC1, netbsd-3-1-1-RELEASE, netbsd-3-1, netbsd-3-0-RELEASE, netbsd-3-0-RC6, netbsd-3-0-RC5, netbsd-3-0-RC4, netbsd-3-0-RC3, netbsd-3-0-RC2, netbsd-3-0-RC1, netbsd-3-0-3-RELEASE, netbsd-3-0-2-RELEASE, netbsd-3-0-1-RELEASE, netbsd-3-0, netbsd-3, netbsd-2-base, netbsd-2-1-RELEASE, netbsd-2-1-RC6, netbsd-2-1-RC5, netbsd-2-1-RC4, netbsd-2-1-RC3, netbsd-2-1-RC2, netbsd-2-1-RC1, netbsd-2-1, netbsd-2-0-base, netbsd-2-0-RELEASE, netbsd-2-0-RC5, netbsd-2-0-RC4, netbsd-2-0-RC3, netbsd-2-0-RC2, netbsd-2-0-RC1, netbsd-2-0-3-RELEASE, netbsd-2-0-2-RELEASE, netbsd-2-0-1-RELEASE, netbsd-2-0, netbsd-2, abandoned-netbsd-4-base, abandoned-netbsd-4
Changes since 1.13: +10 -7 lines
Diff to previous 1.13 (colored)

Merge tzcode2003d.

Revision 1.13 / (download) - annotate - [select for diffs], Sun May 26 11:49:58 2002 UTC (18 years, 6 months ago) by wiz
Branch: MAIN
CVS Tags: nathanw_sa_before_merge, nathanw_sa_base, fvdl_fs64_base
Changes since 1.12: +2 -7 lines
Diff to previous 1.12 (colored)

__STDC__ is always defined on NetBSD.

Revision 1.12 / (download) - annotate - [select for diffs], Tue Apr 16 19:20:51 2002 UTC (18 years, 7 months ago) by groo
Branch: MAIN
CVS Tags: netbsd-1-6-base, netbsd-1-6-RELEASE, netbsd-1-6-RC3, netbsd-1-6-RC2, netbsd-1-6-RC1, netbsd-1-6-PATCH002-RELEASE, netbsd-1-6-PATCH002-RC4, netbsd-1-6-PATCH002-RC3, netbsd-1-6-PATCH002-RC2, netbsd-1-6-PATCH002-RC1, netbsd-1-6-PATCH002, netbsd-1-6-PATCH001-RELEASE, netbsd-1-6-PATCH001-RC3, netbsd-1-6-PATCH001-RC2, netbsd-1-6-PATCH001-RC1, netbsd-1-6-PATCH001, netbsd-1-6
Changes since 1.11: +6 -6 lines
Diff to previous 1.11 (colored)

botched strncpy -> strlcpy
from xs@kittenz.org

Revision 1.11 / (download) - annotate - [select for diffs], Tue Jan 29 12:40:34 2002 UTC (18 years, 9 months ago) by kleink
Branch: MAIN
Changes since 1.10: +5 -6 lines
Diff to previous 1.10 (colored)

Merge tzcode2002b.

Revision 1.10 / (download) - annotate - [select for diffs], Mon Feb 8 18:00:19 1999 UTC (21 years, 9 months ago) by kleink
Branch: MAIN
CVS Tags: wrstuden-devbsize-base, wrstuden-devbsize-19991221, wrstuden-devbsize, netbsd-1-5-base, netbsd-1-5-RELEASE, netbsd-1-5-PATCH002, netbsd-1-5-PATCH001, netbsd-1-5-BETA2, netbsd-1-5-BETA, netbsd-1-5-ALPHA2, netbsd-1-4-base, netbsd-1-4-RELEASE, netbsd-1-4-PATCH003, netbsd-1-4-PATCH002, netbsd-1-4-PATCH001, netbsd-1-4, minoura-xpg4dl-base, minoura-xpg4dl, comdex-fall-1999-base, comdex-fall-1999
Branch point for: netbsd-1-5, nathanw_sa
Changes since 1.9: +4 -4 lines
Diff to previous 1.9 (colored)

Merge tzcode1999b.

Revision 1.9 / (download) - annotate - [select for diffs], Sun Jul 26 16:03:16 1998 UTC (22 years, 4 months ago) by mycroft
Branch: MAIN
Changes since 1.8: +6 -7 lines
Diff to previous 1.8 (colored)

const poisoning.

Revision 1.8 / (download) - annotate - [select for diffs], Thu Jan 22 07:07:00 1998 UTC (22 years, 10 months ago) by jtc
Branch: MAIN
Changes since 1.7: +4 -4 lines
Diff to previous 1.7 (colored)

sync with tzcode1998a

Revision 1.7 / (download) - annotate - [select for diffs], Fri Oct 17 14:23:45 1997 UTC (23 years, 1 month ago) by lukem
Branch: MAIN
CVS Tags: netbsd-1-3-base, netbsd-1-3-RELEASE, netbsd-1-3-PATCH003-CANDIDATE2, netbsd-1-3-PATCH003-CANDIDATE1, netbsd-1-3-PATCH003-CANDIDATE0, netbsd-1-3-PATCH003, netbsd-1-3-PATCH002, netbsd-1-3-PATCH001, netbsd-1-3-BETA, netbsd-1-3
Changes since 1.6: +3 -2 lines
Diff to previous 1.6 (colored)

warnsify

Revision 1.6 / (download) - annotate - [select for diffs], Sun Jul 13 20:26:55 1997 UTC (23 years, 4 months ago) by christos
Branch: MAIN
Changes since 1.5: +6 -1 lines
Diff to previous 1.5 (colored)

Fix RCSID's

Revision 1.5 / (download) - annotate - [select for diffs], Wed Jun 18 01:13:00 1997 UTC (23 years, 5 months ago) by jtc
Branch: MAIN
Changes since 1.4: +21 -15 lines
Diff to previous 1.4 (colored)

Sync with tzcode1997e

Revision 1.4 / (download) - annotate - [select for diffs], Thu Jan 23 14:02:31 1997 UTC (23 years, 10 months ago) by mrg
Branch: MAIN
Changes since 1.3: +3 -3 lines
Diff to previous 1.3 (colored)

- convert unsafe strcpy(), strcat() and sprintf() to the `n' versions.
- some KNF.

Revision 1.3 / (download) - annotate - [select for diffs], Tue Sep 10 22:04:35 1996 UTC (24 years, 2 months ago) by jtc
Branch: MAIN
CVS Tags: nsswitch, ivory_soap2
Changes since 1.2: +38 -7 lines
Diff to previous 1.2 (colored)

sync with tzcode96l

Revision 1.2 / (download) - annotate - [select for diffs], Fri Mar 10 18:12:43 1995 UTC (25 years, 8 months ago) by jtc
Branch: MAIN
CVS Tags: netbsd-1-2-base, netbsd-1-2-RELEASE, netbsd-1-2-PATCH001, netbsd-1-2-BETA, netbsd-1-2, netbsd-1-1-base, netbsd-1-1-RELEASE, netbsd-1-1-PATCH001, netbsd-1-1
Branch point for: ivory_soap
Changes since 1.1: +2 -0 lines
Diff to previous 1.1 (colored)

Added NetBSD Id.

Revision 1.1 / (download) - annotate - [select for diffs], Fri Mar 10 07:08:19 1995 UTC (25 years, 8 months ago) by jtc
Branch: MAIN

Initial revision

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