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Diffstat (limited to 'system_cmds/zic.tproj')
| -rw-r--r-- | system_cmds/zic.tproj/Arts.htm | 178 | ||||
| -rw-r--r-- | system_cmds/zic.tproj/Makefile.zoneinfo.dist | 90 | ||||
| -rw-r--r-- | system_cmds/zic.tproj/README | 88 | ||||
| -rw-r--r-- | system_cmds/zic.tproj/Theory | 552 | ||||
| -rw-r--r-- | system_cmds/zic.tproj/ZIC_HACK | 6 | ||||
| -rwxr-xr-x | system_cmds/zic.tproj/build_zichost.sh | 50 | ||||
| -rwxr-xr-x | system_cmds/zic.tproj/generate_zone_file_list.sh | 28 | ||||
| -rwxr-xr-x | system_cmds/zic.tproj/generate_zoneinfo.sh | 105 | ||||
| -rw-r--r-- | system_cmds/zic.tproj/ialloc.c | 91 | ||||
| -rwxr-xr-x | system_cmds/zic.tproj/install_zoneinfo.sh | 47 | ||||
| -rw-r--r-- | system_cmds/zic.tproj/private.h | 272 | ||||
| -rw-r--r-- | system_cmds/zic.tproj/scheck.c | 68 | ||||
| -rw-r--r-- | system_cmds/zic.tproj/tz-art.htm | 278 | ||||
| -rw-r--r-- | system_cmds/zic.tproj/tz-link.htm | 443 | ||||
| -rw-r--r-- | system_cmds/zic.tproj/tzfile.h | 192 | ||||
| -rw-r--r-- | system_cmds/zic.tproj/zic.8 | 468 | ||||
| -rw-r--r-- | system_cmds/zic.tproj/zic.c | 2770 |
17 files changed, 5726 insertions, 0 deletions
diff --git a/system_cmds/zic.tproj/Arts.htm b/system_cmds/zic.tproj/Arts.htm new file mode 100644 index 0000000..e8f9539 --- /dev/null +++ b/system_cmds/zic.tproj/Arts.htm @@ -0,0 +1,178 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN" "http://www.w3.org/TR/REC-html40/strict.dtd"> +<!-- $FreeBSD: src/usr.sbin/zic/Arts.htm,v 1.2 2000/05/29 20:23:04 charnier Exp $ --> +<HTML> +<HEAD> +<TITLE>Time and the Arts</TITLE> +</HEAD> +<BODY> +<H1>Time and the Arts</H1> +<P> +<H6> +@(#)Arts.htm 7.18 +</H6> +</P> +<PRE> +Data on recordings of "Save That Time," Russ Long, Serrob Publishing, BMI: +-------------------------------------------------------------------------- +Artist: Karrin Allyson +CD: I Didn't Know About You +Copyright Date: 1993 +Label: Concord Jazz, Inc. +ID: CCD-4543 +Track Time: 3:44 +Personnel: Karrin Allyson, vocal + Russ Long, piano + Gerald Spaits, bass + Todd Strait, drums +Notes: CD notes "additional lyric by Karrin Allyson; + arranged by Russ Long and Karrin Allyson" +ADO Rating: 1 star +<A HREF="http://205.186.189.2/cgi-win/amg.exe?sql=1A_IDR|||175928">AMG Rating: 3.5 stars</A> +Penguin Rating: 3.5 stars +-------------------------------------------------------------------------- +Artist: Kevin Mahogany +CD: Double Rainbow +Copyright Date: 1993 +Label: Enja Records +ID: ENJ-7097 2 +Track Time: 6:27 +Personnel: Kevin Mahogany, vocal + Kenny Barron, piano + Ray Drummond, bss + Ralph Moore, tenor saxophone + Lewis Nash, drums +ADO Rating: 1.5 stars +<A HREF="http://205.186.189.2/cgi-win/amg.exe?sql=1A_IDR|||262654">AMG Rating: unrated</A> +Penguin Rating: 3 stars +-------------------------------------------------------------------------- +Artist: Joe Williams +CD: Here's to Life +Copyright Date: 1994 +Label: Telarc International Corporation +ID: CD-83357 +Track Time: 3:58 +Personnel: Joe Williams, vocal + The Robert Farnon [39 piece] Orchestra +Notes: On-line information and samples available at + <A HREF="http://www.telarc.com/telarc/releases/release.req?ID=83357">http://telarc.dmn.com/telarc/releases/release.req?ID=83357</A> +ADO Rating: black dot +<A HREF="http://205.186.189.2/cgi-win/amg.exe?sql=1A_IDR|||194434">AMG Rating: 2 stars</A> +Penguin Rating: 3 stars +-------------------------------------------------------------------------- +Artist: Charles Fambrough +CD: Keeper of the Spirit +Copyright Date: 1995 +Label: AudioQuest Music +ID: AQ-CD1033 +Track Time: 7:07 +Personnel: Charles Fambrough, bass + Joel Levine, tenor recorder + Edward Simon, piano + Lenny White, drums + Marion Simon, percussion +Notes: On-line information and samples available at + <A HREF="http://wwmusic.com/~music/audioq/rel/1033.html">http://wwmusic.com/~music/audioq/rel/1033.html</A> +ADO Rating: 2 stars +<A HREF="http://205.186.189.2/cgi-win/AMG.exe?sql=1A_IDR|||224430">AMG Rating: unrated</A> +Penguin Rating: 3 stars +========================================================================== +Also of note: +-------------------------------------------------------------------------- +Artist: Holly Cole Trio +CD: Blame It On My Youth +Copyright Date: 1992 +Label: Manhattan +ID: CDP 7 97349 2 +Total Time: 37:45 +Personnel: Holly Cole, voice + Aaron Davis, piano + David Piltch, string bass +Notes: Lyrical reference to "Eastern Standard Time" in + Tom Waits' "Purple Avenue" +ADO Rating: 2.5 stars +<A HREF="http://205.186.189.2/cgi-win/AMG.exe?sql=1A_IDR|||157959">AMG Rating: 2 stars</A> +Penguin Rating: unrated +-------------------------------------------------------------------------- +Artist: Milt Hinton +CD: Old Man Time +Copyright Date: 1990 +Label: Chiaroscuro +ID: CR(D) 310 +Total Time: 149:38 (two CDs) +Personnel: Milt Hinton, bass + Doc Cheatham, Dizzy Gillespie, Clark Terry, trumpet + Al Grey, trombone + Eddie Barefield, Joe Camel (Flip Phillips), Buddy Tate, + clarinet and saxophone + John Bunch, Red Richards, Norman Simmons, Derek Smith, + Ralph Sutton, piano + Danny Barker, Al Casey, guitar + Gus Johnson, Gerryck King, Bob Rosengarden, Jackie Williams, + drums + Lionel Hampton, vibraphone + Cab Calloway, Joe Williams, vocal + Buck Clayton, arrangements +Notes: tunes include Old Man Time, Time After Time, + Sometimes I'm Happy, + A Hot Time in the Old Town Tonight, + Four or Five Times, Now's the Time, + Time on My Hands, This Time It's Us, + and Good Time Charlie + On-line samples available at + <A HREF="http://www.globalmusic.com/labels/chiaroscuro/chiaro_cd_gallery.html">http://www.globalmusic.com/labels/chiaroscuro/chiaro_cd_gallery.html</A> +ADO Rating: 3 stars +<A HREF="http://205.186.189.2/cgi-win/AMG.exe?sql=1A_IDR|||162344">AMG Rating: 4.5 stars</A> +Penguin Rating: 3 stars +-------------------------------------------------------------------------- +Artist: Paul Broadbent +CD: Pacific Standard Time +Copyright Date: 1995 +Label: Concord Jazz, Inc. +ID: CCD-4664 +Total Time: 62:42 +Personnel: Paul Broadbent, piano + Putter Smith, Bass + Frank Gibson, Jr., drums +Notes: The CD cover features an analemma for equation of time fans +ADO Rating: 1 star +<A HREF="http://205.186.189.2/cgi-win/AMG.exe?sql=1A_IDR|||223722">AMG Rating: 3 stars</A> +Penguin Rating: 3.5 stars +-------------------------------------------------------------------------- +Artist: Anthony Braxton/Richard Teitelbaum +CD: Silence/Time Zones +Copyright Date: 1996 +Label: Black Lion +ID: BLCD 760221 +Total Time: 72:58 +Personnel: Anthony Braxton, sopranino and alto saxophones, + contrebasse clarinet, miscellaneous instruments + Leo Smith, trumpet and miscellaneous instruments + Leroy Jenkins, violin and miscellaneous instruments + Richard Teitelbaum, modular moog and micromoog synthesizer +ADO Rating: black dot +<A HREF="http://205.186.189.2/cg/AMG_.exe?sql=A310757">AMG Rating: unrated</A> +-------------------------------------------------------------------------- +Artist: Jules Verne +Book: Le Tour du Monde en Quatre-Vingts Jours + (Around the World in Eighty Days) +Notes: Wall-clock time plays a central role in the plot. + European readers of the 1870s clearly held the U.S. press in + deep contempt; the protagonists cross the U.S. without once + reading a paper. + An on-line French-language version of the book + "with illustrations from the original 1873 French-language edition" + is available at + <A HREF="http://fourmilab.ch/etexts/www/tdm80j">http://fourmilab.ch/etexts/www/tdm80j</A> + An on-line English-language translation of the book is available at + <A HREF="http://www.literature.org/Works/Jules-Verne/eighty">http://www.literature.org/Works/Jules-Verne/eighty</A> +-------------------------------------------------------------------------- +Film: Bell Science - About Time +Notes: The Frank Baxter/Richard Deacon extravaganza + Information on ordering is available at + <A HREF="http://www.videoflicks.com/VF/38/038332.htm">http://www.videoflicks.com/VF/38/038332.htm</A> +-------------------------------------------------------------------------- +The syndicated comic strip "Dilbert" featured an all-too-rare example of +time zone humor on 1998-03-14. +</PRE> +</BODY> +</HTML> diff --git a/system_cmds/zic.tproj/Makefile.zoneinfo.dist b/system_cmds/zic.tproj/Makefile.zoneinfo.dist new file mode 100644 index 0000000..1e21e89 --- /dev/null +++ b/system_cmds/zic.tproj/Makefile.zoneinfo.dist @@ -0,0 +1,90 @@ +# $NetBSD: Makefile,v 1.14 1995/04/22 12:10:17 cgd Exp $ + +# Change the line below for your time zone (after finding the zone you want in +# the time zone files, or adding it to a time zone file). +# Alternately, if you discover you've got the wrong time zone, you can just +# zic -l rightzone + +################################################################################ +# NOTE: THIS MAKEFILE IS FOR REFERENCE ONLY AND IS NOT ACTUALLY EXECUTED AT +# BUILD TIME +################################################################################ + +# This line has been moved to /usr/src/etc/Makefile +LOCALTIME= US/Pacific + +# If you want something other than Eastern United States time as a template +# for handling POSIX-style time zone environment variables, +# change the line below (after finding the zone you want in the +# time zone files, or adding it to a time zone file). +# Alternately, if you discover you've got the wrong time zone, you can just +# zic -p rightzone + +POSIXRULES= US/Pacific + +# Use an absolute path name for TZDIR unless you're just testing the software. + +TZDIR= ${DESTDIR}/usr/share/zoneinfo + +# If you always want time values interpreted as "seconds since the epoch +# (not counting leap seconds)", use +# REDO= posix_only +# below. If you always want right time values interpreted as "seconds since +# the epoch" (counting leap seconds)", use +# REDO= right_only +# below. If you want both sets of data available, with leap seconds not +# counted normally, use +# REDO= posix_right +# below. If you want both sets of data available, with leap seconds counted +# normally, use +# REDO= right_posix +# below. + +REDO= posix_only + +# Since "." may not be in PATH... +YEARISTYPE= ${.CURDIR}/datfiles/yearistype.sh +YEARISTYPECOPY= ${.OBJDIR}/yearistypecopy + +YDATA= africa antarctica asia australasia \ + europe northamerica southamerica pacificnew etcetera factory \ + backward +NDATA= systemv +TDATA= $(YDATA) $(NDATA) +DATA= $(YDATA) $(NDATA) leapseconds # yearistype.sh +USNO= usno1988 usno1989 + +ZIC=zic + +${YEARISTYPECOPY}: + cp ${YEARISTYPE} yearistypecopy + chmod u+x yearistypecopy + +posix_only: ${TDATA} ${YEARISTYPECOPY} + (cd ${.CURDIR}/datfiles; \ + ${ZIC} -y ${YEARISTYPECOPY} -d ${TZDIR} -L /dev/null ${TDATA}) + +right_only: leapseconds ${TDATA} ${YEARISTYPECOPY} + (cd ${.CURDIR}/datfiles; \ + ${ZIC} -y ${YEARISTYPECOPY} -d ${TZDIR} -L leapseconds ${TDATA}) + +other_two: leapseconds ${TDATA} ${YEARISTYPECOPY} + (cd ${.CURDIR}/datfiles; \ + ${ZIC} -y ${YEARISTYPECOPY} -d ${TZDIR}/posix -L /dev/null ${TDATA}) + (cd ${.CURDIR}/datfiles; \ + ${ZIC} -y ${YEARISTYPECOPY} -d ${TZDIR}/right -L leapseconds ${TDATA}) + +posix_right: posix_only other_two + +right_posix: right_only other_two + +realinstall: ${DATA} ${REDO} ${YEARISTYPECOPY} + (cd ${.CURDIR}/datfiles; \ + ${ZIC} -y ${YEARISTYPECOPY} -d ${TZDIR} -p ${POSIXRULES}) + chown -R ${BINOWN}:${BINGRP} ${TZDIR} + find ${TZDIR} -type f | xargs chmod a=r + +CLEANFILES+= yearistypecopy + +.PATH: ${.CURDIR}/datfiles +.include <bsd.prog.mk> diff --git a/system_cmds/zic.tproj/README b/system_cmds/zic.tproj/README new file mode 100644 index 0000000..ff974e9 --- /dev/null +++ b/system_cmds/zic.tproj/README @@ -0,0 +1,88 @@ +@(#)README 8.3 +This file is in the public domain, so clarified as of +2009-05-17 by Arthur David Olson. + +$FreeBSD: head/contrib/tzcode/zic/README 192890 2009-05-27 12:18:39Z edwin $ + +"What time is it?" -- Richard Deacon as The King +"Any time you want it to be." -- Frank Baxter as The Scientist + (from the Bell System film "About Time") + +The 1989 update of the time zone package featured + +* POSIXization (including interpretation of POSIX-style TZ environment + variables, provided by Guy Harris), +* ANSIfication (including versions of "mktime" and "difftime"), +* SVIDulation (an "altzone" variable) +* MACHination (the "gtime" function) +* corrections to some time zone data (including corrections to the rules + for Great Britain and New Zealand) +* reference data from the United States Naval Observatory for folks who + want to do additional time zones +* and the 1989 data for Saudi Arabia. + +(Since this code will be treated as "part of the implementation" in some places +and as "part of the application" in others, there's no good way to name +functions, such as timegm, that are not part of the proposed ANSI C standard; +such functions have kept their old, underscore-free names in this update.) + +And the "dysize" function has disappeared; it was present to allow compilation +of the "date" command on old BSD systems, and a version of "date" is now +provided in the package. The "date" command is not created when you "make all" +since it may lack options provided by the version distributed with your +operating system, or may not interact with the system in the same way the +native version does. + +Since POSIX frowns on correct leap second handling, the default behavior of +the "zic" command (in the absence of a "-L" option) has been changed to omit +leap second information from its output files. + +Here is a recipe for acquiring, building, installing, and testing the +tz distribution on a GNU/Linux or similar host. + + mkdir tz + cd tz + wget 'ftp://elsie.nci.nih.gov/pub/tz*.tar.gz' + gzip -dc tzcode*.tar.gz | tar -xf - + gzip -dc tzdata*.tar.gz | tar -xf - + +Be sure to read the comments in "Makefile" and make any changes needed +to make things right for your system, especially if you are using some +platform other than GNU/Linux. Then run the following commands, +substituting your desired installation directory for "$HOME/tzdir": + + make TOPDIR=$HOME/tzdir install + $HOME/tzdir/etc/zdump -v America/Los_Angeles + +To use the new functions, use a "-ltz" option when compiling or linking. + +Historical local time information has been included here to: + +* provide a compendium of data about the history of civil time + that is useful even if the data are not 100% accurate; + +* give an idea of the variety of local time rules that have + existed in the past and thus an idea of the variety that may be + expected in the future; + +* provide a test of the generality of the local time rule description + system. + +The information in the time zone data files is by no means authoritative; +the files currently do not even attempt to cover all time stamps before +1970, and there are undoubtedly errors even for time stamps since 1970. +If you know that the rules are different from those in a file, by all means +feel free to change file (and please send the changed version to +tz@elsie.nci.nih.gov for use in the future). Europeans take note! + +Thanks to these Timezone Caballeros who've made major contributions to the +time conversion package: Keith Bostic; Bob Devine; Paul Eggert; Robert Elz; +Guy Harris; Mark Horton; John Mackin; and Bradley White. Thanks also to +Michael Bloom, Art Neilson, Stephen Prince, John Sovereign, and Frank Wales +for testing work, and to Gwillim Law for checking local mean time data. +None of them are responsible for remaining errors. + +Look in the ~ftp/pub directory of elsie.nci.nih.gov +for updated versions of these files. + +Please send comments or information to tz@elsie.nci.nih.gov. diff --git a/system_cmds/zic.tproj/Theory b/system_cmds/zic.tproj/Theory new file mode 100644 index 0000000..cbf53b9 --- /dev/null +++ b/system_cmds/zic.tproj/Theory @@ -0,0 +1,552 @@ +@(#)Theory 7.15 + + +----- Outline ----- + + Time and date functions + Names of time zone regions + Time zone abbreviations + Calendrical issues + Time and time zones on Mars + + +----- Time and date functions ----- + +These time and date functions are upwards compatible with POSIX.1, +an international standard for UNIX-like systems. +As of this writing, the current edition of POSIX.1 is: + + Information technology --Portable Operating System Interface (POSIX (R)) + -- Part 1: System Application Program Interface (API) [C Language] + ISO/IEC 9945-1:1996 + ANSI/IEEE Std 1003.1, 1996 Edition + 1996-07-12 + +POSIX.1 has the following properties and limitations. + +* In POSIX.1, time display in a process is controlled by the + environment variable TZ. Unfortunately, the POSIX.1 TZ string takes + a form that is hard to describe and is error-prone in practice. + Also, POSIX.1 TZ strings can't deal with other (for example, Israeli) + daylight saving time rules, or situations where more than two + time zone abbreviations are used in an area. + + The POSIX.1 TZ string takes the following form: + + stdoffset[dst[offset],date[/time],date[/time]] + + where: + + std and dst + are 3 or more characters specifying the standard + and daylight saving time (DST) zone names. + offset + is of the form `[-]hh:[mm[:ss]]' and specifies the + offset west of UTC. The default DST offset is one hour + ahead of standard time. + date[/time],date[/time] + specifies the beginning and end of DST. If this is absent, + the system supplies its own rules for DST, and these can + differ from year to year; typically US DST rules are used. + time + takes the form `hh:[mm[:ss]]' and defaults to 02:00. + date + takes one of the following forms: + Jn (1<=n<=365) + origin-1 day number not counting February 29 + n (0<=n<=365) + origin-0 day number counting February 29 if present + Mm.n.d (0[Sunday]<=d<=6[Saturday], 1<=n<=5, 1<=m<=12) + for the dth day of week n of month m of the year, + where week 1 is the first week in which day d appears, + and `5' stands for the last week in which day d appears + (which may be either the 4th or 5th week). + +* In POSIX.1, when a TZ value like "EST5EDT" is parsed, + typically the current US DST rules are used, + but this means that the US DST rules are compiled into each program + that does time conversion. This means that when US time conversion + rules change (as in the United States in 1987), all programs that + do time conversion must be recompiled to ensure proper results. + +* In POSIX.1, there's no tamper-proof way for a process to learn the + system's best idea of local wall clock. (This is important for + applications that an administrator wants used only at certain times-- + without regard to whether the user has fiddled the "TZ" environment + variable. While an administrator can "do everything in UTC" to get + around the problem, doing so is inconvenient and precludes handling + daylight saving time shifts--as might be required to limit phone + calls to off-peak hours.) + +* POSIX.1 requires that systems ignore leap seconds. + +These are the extensions that have been made to the POSIX.1 functions: + +* The "TZ" environment variable is used in generating the name of a file + from which time zone information is read (or is interpreted a la + POSIX); "TZ" is no longer constrained to be a three-letter time zone + name followed by a number of hours and an optional three-letter + daylight time zone name. The daylight saving time rules to be used + for a particular time zone are encoded in the time zone file; + the format of the file allows U.S., Australian, and other rules to be + encoded, and allows for situations where more than two time zone + abbreviations are used. + + It was recognized that allowing the "TZ" environment variable to + take on values such as "America/New_York" might cause "old" programs + (that expect "TZ" to have a certain form) to operate incorrectly; + consideration was given to using some other environment variable + (for example, "TIMEZONE") to hold the string used to generate the + time zone information file name. In the end, however, it was decided + to continue using "TZ": it is widely used for time zone purposes; + separately maintaining both "TZ" and "TIMEZONE" seemed a nuisance; + and systems where "new" forms of "TZ" might cause problems can simply + use TZ values such as "EST5EDT" which can be used both by + "new" programs (a la POSIX) and "old" programs (as zone names and + offsets). + +* To handle places where more than two time zone abbreviations are used, + the functions "localtime" and "gmtime" set tzname[tmp->tm_isdst] + (where "tmp" is the value the function returns) to the time zone + abbreviation to be used. This differs from POSIX.1, where the elements + of tzname are only changed as a result of calls to tzset. + +* Since the "TZ" environment variable can now be used to control time + conversion, the "daylight" and "timezone" variables are no longer + needed. (These variables are defined and set by "tzset"; however, their + values will not be used by "localtime.") + +* The "localtime" function has been set up to deliver correct results + for near-minimum or near-maximum time_t values. (A comment in the + source code tells how to get compatibly wrong results). + +* A function "tzsetwall" has been added to arrange for the system's + best approximation to local wall clock time to be delivered by + subsequent calls to "localtime." Source code for portable + applications that "must" run on local wall clock time should call + "tzsetwall();" if such code is moved to "old" systems that don't + provide tzsetwall, you won't be able to generate an executable program. + (These time zone functions also arrange for local wall clock time to be + used if tzset is called--directly or indirectly--and there's no "TZ" + environment variable; portable applications should not, however, rely + on this behavior since it's not the way SVR2 systems behave.) + +* These functions can account for leap seconds, thanks to Bradley White + (bww@k.cs.cmu.edu). + +Points of interest to folks with other systems: + +* This package is already part of many POSIX-compliant hosts, + including BSD, HP, Linux, Network Appliance, SCO, SGI, and Sun. + On such hosts, the primary use of this package + is to update obsolete time zone rule tables. + To do this, you may need to compile the time zone compiler + `zic' supplied with this package instead of using the system `zic', + since the format of zic's input changed slightly in late 1994, + and many vendors still do not support the new input format. + +* The UNIX Version 7 "timezone" function is not present in this package; + it's impossible to reliably map timezone's arguments (a "minutes west + of GMT" value and a "daylight saving time in effect" flag) to a + time zone abbreviation, and we refuse to guess. + Programs that in the past used the timezone function may now examine + tzname[localtime(&clock)->tm_isdst] to learn the correct time + zone abbreviation to use. Alternatively, use + localtime(&clock)->tm_zone if this has been enabled. + +* The 4.2BSD gettimeofday function is not used in this package. + This formerly let users obtain the current UTC offset and DST flag, + but this functionality was removed in later versions of BSD. + +* In SVR2, time conversion fails for near-minimum or near-maximum + time_t values when doing conversions for places that don't use UTC. + This package takes care to do these conversions correctly. + +The functions that are conditionally compiled if STD_INSPIRED is defined +should, at this point, be looked on primarily as food for thought. They are +not in any sense "standard compatible"--some are not, in fact, specified in +*any* standard. They do, however, represent responses of various authors to +standardization proposals. + +Other time conversion proposals, in particular the one developed by folks at +Hewlett Packard, offer a wider selection of functions that provide capabilities +beyond those provided here. The absence of such functions from this package +is not meant to discourage the development, standardization, or use of such +functions. Rather, their absence reflects the decision to make this package +contain valid extensions to POSIX.1, to ensure its broad +acceptability. If more powerful time conversion functions can be standardized, +so much the better. + + +----- Names of time zone rule files ----- + +The time zone rule file naming conventions attempt to strike a balance +among the following goals: + + * Uniquely identify every national region where clocks have all + agreed since 1970. This is essential for the intended use: static + clocks keeping local civil time. + + * Indicate to humans as to where that region is. This simplifes use. + + * Be robust in the presence of political changes. This reduces the + number of updates and backward-compatibility hacks. For example, + names of countries are ordinarily not used, to avoid + incompatibilities when countries change their name + (e.g. Zaire->Congo) or when locations change countries + (e.g. Hong Kong from UK colony to China). + + * Be portable to a wide variety of implementations. + This promotes use of the technology. + + * Use a consistent naming convention over the entire world. + This simplifies both use and maintenance. + +This naming convention is not intended for use by inexperienced users +to select TZ values by themselves (though they can of course examine +and reuse existing settings). Distributors should provide +documentation and/or a simple selection interface that explains the +names; see the 'tzselect' program supplied with this distribution for +one example. + +Names normally have the form AREA/LOCATION, where AREA is the name +of a continent or ocean, and LOCATION is the name of a specific +location within that region. North and South America share the same +area, `America'. Typical names are `Africa/Cairo', `America/New_York', +and `Pacific/Honolulu'. + +Here are the general rules used for choosing location names, +in decreasing order of importance: + + Use only valid POSIX file name components (i.e., the parts of + names other than `/'). Within a file name component, + use only ASCII letters, `.', `-' and `_'. Do not use + digits, as that might create an ambiguity with POSIX + TZ strings. A file name component must not exceed 14 + characters or start with `-'. E.g., prefer `Brunei' + to `Bandar_Seri_Begawan'. + Include at least one location per time zone rule set per country. + One such location is enough. Use ISO 3166 (see the file + iso3166.tab) to help decide whether something is a country. + If all the clocks in a country's region have agreed since 1970, + don't bother to include more than one location + even if subregions' clocks disagreed before 1970. + Otherwise these tables would become annoyingly large. + If a name is ambiguous, use a less ambiguous alternative; + e.g. many cities are named San Jose and Georgetown, so + prefer `Costa_Rica' to `San_Jose' and `Guyana' to `Georgetown'. + Keep locations compact. Use cities or small islands, not countries + or regions, so that any future time zone changes do not split + locations into different time zones. E.g. prefer `Paris' + to `France', since France has had multiple time zones. + Use mainstream English spelling, e.g. prefer `Rome' to `Roma', and + prefer `Athens' to the true name (which uses Greek letters). + The POSIX file name restrictions encourage this rule. + Use the most populous among locations in a country's time zone, + e.g. prefer `Shanghai' to `Beijing'. Among locations with + similar populations, pick the best-known location, + e.g. prefer `Rome' to `Milan'. + Use the singular form, e.g. prefer `Canary' to `Canaries'. + Omit common suffixes like `_Islands' and `_City', unless that + would lead to ambiguity. E.g. prefer `Cayman' to + `Cayman_Islands' and `Guatemala' to `Guatemala_City', + but prefer `Mexico_City' to `Mexico' because the country + of Mexico has several time zones. + Use `_' to represent a space. + Omit `.' from abbreviations in names, e.g. prefer `St_Helena' + to `St._Helena'. + Do not change established names if they only marginally + violate the above rules. For example, don't change + the existing name `Rome' to `Milan' merely because + Milan's population has grown to be somewhat greater + than Rome's. + If a name is changed, put its old spelling in the `backward' file. + +The file `zone.tab' lists the geographical locations used to name +time zone rule files. + +Older versions of this package used a different naming scheme, +and these older names are still supported. +See the file `backward' for most of these older names +(e.g. `US/Eastern' instead of `America/New_York'). +The other old-fashioned names still supported are +`WET', `CET', `MET', `EET' (see the file `europe'), +and `Factory' (see the file `factory'). + + +----- Time zone abbreviations ----- + +When this package is installed, it generates time zone abbreviations +like `EST' to be compatible with human tradition and POSIX.1. +Here are the general rules used for choosing time zone abbreviations, +in decreasing order of importance: + + Use abbreviations that consist of three or more ASCII letters. + Previous editions of this database also used characters like + ' ' and '?', but these characters have a special meaning to + the shell and cause commands like + set `date` + to have unexpected effects. + Previous editions of this rule required upper-case letters, + but the Congressman who introduced Chamorro Standard Time + preferred "ChST", so the rule has been relaxed. + + This rule guarantees that all abbreviations could have + been specified by a POSIX.1 TZ string. POSIX.1 + requires at least three characters for an + abbreviation. POSIX.1-1996 says that an abbreviation + cannot start with ':', and cannot contain ',', '-', + '+', NUL, or a digit. Draft 7 of POSIX 1003.1-200x + changes this rule to say that an abbreviation can + contain only '-', '+', and alphanumeric characters in + the current locale. To be portable to both sets of + rules, an abbreviation must therefore use only ASCII + letters, as these are the only letters that are + alphabetic in all locales. + + Use abbreviations that are in common use among English-speakers, + e.g. `EST' for Eastern Standard Time in North America. + We assume that applications translate them to other languages + as part of the normal localization process; for example, + a French application might translate `EST' to `HNE'. + + For zones whose times are taken from a city's longitude, use the + traditional xMT notation, e.g. `PMT' for Paris Mean Time. + The only name like this in current use is `GMT'. + + If there is no common English abbreviation, abbreviate the English + translation of the usual phrase used by native speakers. + If this is not available or is a phrase mentioning the country + (e.g. ``Cape Verde Time''), then: + + When a country has a single or principal time zone region, + append `T' to the country's ISO code, e.g. `CVT' for + Cape Verde Time. For summer time append `ST'; + for double summer time append `DST'; etc. + When a country has multiple time zones, take the first three + letters of an English place name identifying each zone + and then append `T', `ST', etc. as before; + e.g. `VLAST' for VLAdivostok Summer Time. + + Use "zzz" for locations while uninhabited. The mnemonic is that + these locations are, in some sense, asleep. + +Application writers should note that these abbreviations are ambiguous +in practice: e.g. `EST' has a different meaning in Australia than +it does in the United States. In new applications, it's often better +to use numeric UTC offsets like `-0500' instead of time zone +abbreviations like `EST'; this avoids the ambiguity. + + +----- Calendrical issues ----- + +Calendrical issues are a bit out of scope for a time zone database, +but they indicate the sort of problems that we would run into if we +extended the time zone database further into the past. An excellent +resource in this area is Nachum Dershowitz and Edward M. Reingold, +<a href="http://emr.cs.uiuc.edu/home/reingold/calendar-book/index.shtml"> +Calendrical Calculations +</a>, Cambridge University Press (1997). Other information and +sources are given below. They sometimes disagree. + + +France + +Gregorian calendar adopted 1582-12-20. +French Revolutionary calendar used 1793-11-24 through 1805-12-31, +and (in Paris only) 1871-05-06 through 1871-05-23. + + +Russia + +From Chris Carrier <72157.3334@CompuServe.COM> (1996-12-02): +On 1929-10-01 the Soviet Union instituted an ``Eternal Calendar'' +with 30-day months plus 5 holidays, with a 5-day week. +On 1931-12-01 it changed to a 6-day week; in 1934 it reverted to the +Gregorian calendar while retaining the 6-day week; on 1940-06-27 it +reverted to the 7-day week. With the 6-day week the usual days +off were the 6th, 12th, 18th, 24th and 30th of the month. +(Source: Evitiar Zerubavel, _The Seven Day Circle_) + + +Mark Brader reported a similar story in "The Book of Calendars", edited +by Frank Parise (1982, Facts on File, ISBN 0-8719-6467-8), page 377. But: + +From: Petteri Sulonen (via Usenet) +Date: 14 Jan 1999 00:00:00 GMT +Message-ID: <Petteri.Sulonen-1401991626030001@lapin-kulta.in.helsinki.fi> + +If your source is correct, how come documents between 1929 -- 1940 were +still dated using the conventional, Gregorian calendar? + +I can post a scan of a document dated December 1, 1934, signed by +Yenukidze, the secretary, on behalf of Kalinin, the President of the +Executive Committee of the Supreme Soviet, if you like. + + + +Sweden (and Finland) + +From: msb@sq.com (Mark Brader) +<a href="news:1996Jul6.012937.29190@sq.com"> +Subject: Re: Gregorian reform -- a part of locale? +</a> +Date: 1996-07-06 + +In 1700, Denmark made the transition from Julian to Gregorian. Sweden +decided to *start* a transition in 1700 as well, but rather than have one of +those unsightly calendar gaps :-), they simply decreed that the next leap +year after 1696 would be in 1744 -- putting the whole country on a calendar +different from both Julian and Gregorian for a period of 40 years. + +However, in 1704 something went wrong and the plan was not carried through; +they did, after all, have a leap year that year. And one in 1708. In 1712 +they gave it up and went back to Julian, putting 30 days in February that +year!... + +Then in 1753, Sweden made the transition to Gregorian in the usual manner, +getting there only 13 years behind the original schedule. + +(A previous posting of this story was challenged, and Swedish readers +produced the following references to support it: "Tiderakning och historia" +by Natanael Beckman (1924) and "Tid, en bok om tiderakning och +kalendervasen" by Lars-Olof Lode'n (no date was given).) + + +Grotefend's data + +From: "Michael Palmer" <mpalmer@netcom.com> [with one obvious typo fixed] +Subject: Re: Gregorian Calendar (was Re: Another FHC related question +Newsgroups: soc.genealogy.german +Date: Tue, 9 Feb 1999 02:32:48 -800 +Message-ID: <199902091032.CAA09644@netcom10.netcom.com> + +The following is a(n incomplete) listing, arranged chronologically, of +European states, with the date they converted from the Julian to the +Gregorian calendar: + +04/15 Oct 1582 - Italy (with exceptions), Spain, Portugal, Poland (Roman + Catholics and Danzig only) +09/20 Dec 1582 - France, Lorraine + +21 Dec 1582/ + 01 Jan 1583 - Holland, Brabant, Flanders, Hennegau +10/21 Feb 1583 - bishopric of Liege (L"uttich) +13/24 Feb 1583 - bishopric of Augsburg +04/15 Oct 1583 - electorate of Trier +05/16 Oct 1583 - Bavaria, bishoprics of Freising, Eichstedt, Regensburg, + Salzburg, Brixen +13/24 Oct 1583 - Austrian Oberelsass and Breisgau +20/31 Oct 1583 - bishopric of Basel +02/13 Nov 1583 - duchy of J"ulich-Berg +02/13 Nov 1583 - electorate and city of K"oln +04/15 Nov 1583 - bishopric of W"urzburg +11/22 Nov 1583 - electorate of Mainz +16/27 Nov 1583 - bishopric of Strassburg and the margraviate of Baden +17/28 Nov 1583 - bishopric of M"unster and duchy of Cleve +14/25 Dec 1583 - Steiermark + +06/17 Jan 1584 - Austria and Bohemia +11/22 Jan 1584 - Luzern, Uri, Schwyz, Zug, Freiburg, Solothurn +12/23 Jan 1584 - Silesia and the Lausitz +22 Jan/ + 02 Feb 1584 - Hungary (legally on 21 Oct 1587) + Jun 1584 - Unterwalden +01/12 Jul 1584 - duchy of Westfalen + +16/27 Jun 1585 - bishopric of Paderborn + +14/25 Dec 1590 - Transylvania + +22 Aug/ + 02 Sep 1612 - duchy of Prussia + +13/24 Dec 1614 - Pfalz-Neuburg + + 1617 - duchy of Kurland (reverted to the Julian calendar in + 1796) + + 1624 - bishopric of Osnabr"uck + + 1630 - bishopric of Minden + +15/26 Mar 1631 - bishopric of Hildesheim + + 1655 - Kanton Wallis + +05/16 Feb 1682 - city of Strassburg + +18 Feb/ + 01 Mar 1700 - Protestant Germany (including Swedish possessions in + Germany), Denmark, Norway +30 Jun/ + 12 Jul 1700 - Gelderland, Zutphen +10 Nov/ + 12 Dec 1700 - Utrecht, Overijssel + +31 Dec 1700/ + 12 Jan 1701 - Friesland, Groningen, Z"urich, Bern, Basel, Geneva, + Turgau, and Schaffhausen + + 1724 - Glarus, Appenzell, and the city of St. Gallen + +01 Jan 1750 - Pisa and Florence + +02/14 Sep 1752 - Great Britain + +17 Feb/ + 01 Mar 1753 - Sweden + +1760-1812 - Graub"unden + +The Russian empire (including Finland and the Baltic states) did not +convert to the Gregorian calendar until the Soviet revolution of 1917. + +Source: H. Grotefend, _Taschenbuch der Zeitrechnung des deutschen +Mittelalters und der Neuzeit_, herausgegeben von Dr. O. Grotefend +(Hannover: Hahnsche Buchhandlung, 1941), pp. 26-28. + + +----- Time and time zones on Mars ----- + +Some people have adjusted their work schedules to fit Mars time. +Dozens of special Mars watches were built for Jet Propulsion +Laboratory workers who kept Mars time during the Mars Exploration +Rovers mission (2004). These timepieces look like normal Seikos and +Citizens but use Mars seconds rather than terrestrial seconds. + +A Mars solar day is called a "sol" and has a mean period equal to +about 24 hours 39 minutes 35.244 seconds in terrestrial time. It is +divided into a conventional 24-hour clock, so each Mars second equals +about 1.02749125 terrestrial seconds. + +The prime meridian of Mars goes through the center of the crater +Airy-0, named in honor of the British astronomer who built the +Greenwich telescope that defines Earth's prime meridian. Mean solar +time on the Mars prime meridian is called Mars Coordinated Time (MTC). + +Each landed mission on Mars has adopted a different reference for +solar time keeping, so there is no real standard for Mars time zones. +For example, the Mars Exploration Rover project (2004) defined two +time zones "Local Solar Time A" and "Local Solar Time B" for its two +missions, each zone designed so that its time equals local true solar +time at approximately the middle of the nominal mission. Such a "time +zone" is not particularly suited for any application other than the +mission itself. + +Many calendars have been proposed for Mars, but none have achieved +wide acceptance. Astronomers often use Mars Sol Date (MSD) which is a +sequential count of Mars solar days elapsed since about 1873-12-29 +12:00 GMT. + +The tz database does not currently support Mars time, but it is +documented here in the hopes that support will be added eventually. + +Sources: + +Michael Allison and Robert Schmunk, +"Technical Notes on Mars Solar Time as Adopted by the Mars24 Sunclock" +<http://www.giss.nasa.gov/tools/mars24/help/notes.html> (2004-03-15). + +Jia-Rui Chong, "Workdays Fit for a Martian", Los Angeles Times +(2004-01-14), pp A1, A20-A21. diff --git a/system_cmds/zic.tproj/ZIC_HACK b/system_cmds/zic.tproj/ZIC_HACK new file mode 100644 index 0000000..57851d9 --- /dev/null +++ b/system_cmds/zic.tproj/ZIC_HACK @@ -0,0 +1,6 @@ +#!/bin/sh +#this must be run on a native system + +ZONE_FILES="$(egrep --files-with-match '^(Zone|Rule|Link)' datfiles/*)" +zic -y datfiles/yearistype.sh -d /tmp/zoneinfo -L /dev/null $ZONE_FILES + diff --git a/system_cmds/zic.tproj/build_zichost.sh b/system_cmds/zic.tproj/build_zichost.sh new file mode 100755 index 0000000..69711cc --- /dev/null +++ b/system_cmds/zic.tproj/build_zichost.sh @@ -0,0 +1,50 @@ +#!/bin/sh +set -e +set -x + +if [ $# -ne 1 ]; then + echo "Usage: $0 BUILT_PRODUCTS_DIR" 1>&2 + exit 1 +fi + +BUILT_PRODUCTS_DIR="$1" + +# We may not be building for a platform we can natively +# run on the build machine. Build a dedicate copy of zic +# for processing zoneinfo files + +ZICHOST_OBJROOT="${BUILT_PRODUCTS_DIR}/zic_host-objroot" +ZICHOST_SYMROOT="${BUILT_PRODUCTS_DIR}/zic_host-sym" +ZICHOST_DSTROOT="${BUILT_PRODUCTS_DIR}/zic_host-dst" +ZICHOST="${ZICHOST_DSTROOT}/zic_host" + +# A full environment causes build settings from a cross +# build (like PLATFORM_NAME) to leak into a native +# host tool build + +EXTRA_ARGS="" +if [ -n "${XCODE_DEVELOPER_USR_PATH}" ]; then + EXTRA_ARGS="XCODE_DEVELOPER_USR_PATH=${XCODE_DEVELOPER_USR_PATH}" +fi + +env -i \ + TMPDIR="${TMPDIR}" \ + PATH="${PATH}" \ + XBS_IS_CHROOTED="${XBS_IS_CHROOTED}" \ + SCDontUseServer="${SCDontUseServer}" \ + __CFPREFERENCES_AVOID_DAEMON="${__CFPREFERENCES_AVOID_DAEMON}" \ + __CF_USER_TEXT_ENCODING="${__CF_USER_TEXT_ENCODING}" \ + LANG="${LANG}" \ + HOME="${HOME}" \ + $EXTRA_ARGS \ + TOOLCHAINS="${TOOLCHAINS}" \ + xcrun -sdk "${SDKROOT}" xcodebuild install \ + -target zic \ + -sdk "macosxinternal" \ + SRCROOT="${SRCROOT}" \ + OBJROOT="${ZICHOST_OBJROOT}" \ + SYMROOT="${ZICHOST_SYMROOT}" \ + DSTROOT="${ZICHOST_DSTROOT}" \ + ARCHS='$(NATIVE_ARCH_ACTUAL)' \ + PRODUCT_NAME=zic_host \ + INSTALL_PATH="/" diff --git a/system_cmds/zic.tproj/generate_zone_file_list.sh b/system_cmds/zic.tproj/generate_zone_file_list.sh new file mode 100755 index 0000000..c28c4da --- /dev/null +++ b/system_cmds/zic.tproj/generate_zone_file_list.sh @@ -0,0 +1,28 @@ +#!/bin/sh +set -e +set -x + +# we need to know where the data files are... +if [ $# -ne 1 ]; then + echo "Usage: $0 DATA_FILES_DIR" 1>&2 + exit 1 +fi + +DATFILES="$1" +ZONE_FILES="$(egrep --files-with-match '^(Zone|Rule|Link)' "${DATFILES}"/* | awk -F "/" '{print $NF}')" + +for tz in ${ZONE_FILES}; do + if [ ${tz} = "backward" ]; then + DO_BACKWARD=1 + continue + elif [ ${tz} = "backzone" ]; then + continue + else + echo "${tz}" + fi +done + +if [ -n "$DO_BACKWARD" ]; then + echo "backward" +fi + diff --git a/system_cmds/zic.tproj/generate_zoneinfo.sh b/system_cmds/zic.tproj/generate_zoneinfo.sh new file mode 100755 index 0000000..2f25d1c --- /dev/null +++ b/system_cmds/zic.tproj/generate_zoneinfo.sh @@ -0,0 +1,105 @@ +#!/bin/sh +set -e +set -x + +printenv | sort + +if [ $# -ne 5 ]; then + echo "Usage: $0 SRCROOT OBJROOT BUILT_PRODUCTS_DIR SDKROOT PLATFORM_NAME" 1>&2 + exit 1 +fi + +SRCROOT="$1" +OBJROOT="$2" +BUILT_PRODUCTS_DIR="$3" +SDKROOT="$4" +PLATFORM_NAME="$5" + +ZICHOST_SYMROOT="${BUILT_PRODUCTS_DIR}/zic_host-sym" +ZICHOST_DSTROOT="${BUILT_PRODUCTS_DIR}/zic_host-dst" +ZICHOST="${ZICHOST_DSTROOT}/zic_host" + +LOCALTIME="US/Pacific" +POSIXRULES="US/Pacific" + +ZONEINFO="${BUILT_PRODUCTS_DIR}/zoneinfo" +DATFILES="${BUILT_PRODUCTS_DIR}/datfiles" +PRIVATEDIR="${BUILT_PRODUCTS_DIR}/private" + +# ftp://elsie.nci.nih.gov/pub/tzdata*.tar.gz +# the tzdata*.tar.gz file is automatically unpacked and a version file created +# /usr/local/share/tz/tzdata*.tar.gz is installed by the TimeZoneData project +TARBALL="${SDKROOT}"/usr/local/share/tz/latest_tzdata.tar.gz +if [ ! -L "$TARBALL" ]; then + echo "error: ${TARBALL} is not a symbolic link" 1>&2 + exit 1 +fi +if [ ! -r "$TARBALL" ]; then + echo "error: ${TARBALL} does not point to a valid file" 1>&2 + exit 1 +fi +DATVERS=`readlink ${TARBALL} | cut -d. -f1 | sed -e 's/^tzdata//'` +VERSIONFILE="${ZONEINFO}/+VERSION" + +mkdir -p "${DATFILES}" +mkdir -p "${ZONEINFO}" +tar zxf "${TARBALL}" -C "${DATFILES}" +ZONE_FILES="$("${SRCROOT}"/zic.tproj/generate_zone_file_list.sh "${DATFILES}")" +for tz in ${ZONE_FILES}; do + if [ ${tz} = "northamerica" ]; then + ARG="-p America/New_York" + else + ARG="" + fi + "${ZICHOST}" ${ARG} -L /dev/null -d "${ZONEINFO}" \ + -y "${DATFILES}/yearistype.sh" "${DATFILES}/${tz}" || exit 1 +done + +if [ $? -ne 0 ]; then + exit 1 +fi + +chmod -R og-w "${ZONEINFO}" +for f in "zone.tab" "iso3166.tab" "leapseconds"; do + install -m 0444 "${DATFILES}/$f" "${ZONEINFO}/$f" || exit 1 +done +if [ $? -ne 0 ]; then + exit 1 +fi + +if [ -n "$RC_BRIDGE" ]; then + ACTUAL_PLATFORM_NAME="bridgeos" +else + ACTUAL_PLATFORM_NAME="${PLATFORM_NAME}" +fi + +case "$ACTUAL_PLATFORM_NAME" in +bridge*) + LOCALTIME="GMT" + ;; +esac + +case "$ACTUAL_PLATFORM_NAME" in +iphone*|appletv*|watch*|bridge*) + mkdir -p "${PRIVATEDIR}/var/db" + mkdir -p -m a+rx "${PRIVATEDIR}/var/db/timezone" + + # This link must precisely start with TZDIR followed by a slash. radar:13532660 + ln -hfs "/var/db/timezone/zoneinfo/${LOCALTIME}" "${PRIVATEDIR}/var/db/timezone/localtime" + ;; +macosx) + mkdir -p "${PRIVATEDIR}/etc" + ln -hfs "/var/db/timezone/zoneinfo/${LOCALTIME}" "${PRIVATEDIR}/etc/localtime" + ;; +*) + echo "Unsupported platform: $ACTUAL_PLATFORM_NAME" + exit 1 + ;; +esac + +rm -f "${VERSIONFILE}" +echo ${DATVERS} > "${VERSIONFILE}" +chmod 444 "${VERSIONFILE}" +touch "${ZONEINFO}" +touch "${PRIVATEDIR}" + diff --git a/system_cmds/zic.tproj/ialloc.c b/system_cmds/zic.tproj/ialloc.c new file mode 100644 index 0000000..dda367b --- /dev/null +++ b/system_cmds/zic.tproj/ialloc.c @@ -0,0 +1,91 @@ +/* +** This file is in the public domain, so clarified as of +** 2006-07-17 by Arthur David Olson. +*/ + +#ifndef lint +#ifndef NOID +static const char elsieid[] = "@(#)ialloc.c 8.30"; +#endif /* !defined NOID */ +#endif /* !defined lint */ + +#ifndef lint +static const char rcsid[] = + "$FreeBSD: head/contrib/tzcode/zic/ialloc.c 192625 2009-05-23 06:31:50Z edwin $"; +#endif /* not lint */ + +/*LINTLIBRARY*/ + +#include "private.h" + +#define nonzero(n) (((n) == 0) ? 1 : (n)) + +char * +imalloc(n) +const int n; +{ + return malloc((size_t) nonzero(n)); +} + +char * +icalloc(nelem, elsize) +int nelem; +int elsize; +{ + if (nelem == 0 || elsize == 0) + nelem = elsize = 1; + return calloc((size_t) nelem, (size_t) elsize); +} + +void * +irealloc(pointer, size) +void * const pointer; +const int size; +{ + if (pointer == NULL) + return imalloc(size); + return realloc((void *) pointer, (size_t) nonzero(size)); +} + +char * +icatalloc(old, new) +char * const old; +const char * const new; +{ + register char * result; + register int oldsize, newsize; + + newsize = (new == NULL) ? 0 : strlen(new); + if (old == NULL) + oldsize = 0; + else if (newsize == 0) + return old; + else oldsize = strlen(old); + if ((result = irealloc(old, oldsize + newsize + 1)) != NULL) + if (new != NULL) + (void) strcpy(result + oldsize, new); + return result; +} + +char * +icpyalloc(string) +const char * const string; +{ + return icatalloc((char *) NULL, string); +} + +void +ifree(p) +char * const p; +{ + if (p != NULL) + (void) free(p); +} + +void +icfree(p) +char * const p; +{ + if (p != NULL) + (void) free(p); +} diff --git a/system_cmds/zic.tproj/install_zoneinfo.sh b/system_cmds/zic.tproj/install_zoneinfo.sh new file mode 100755 index 0000000..50a9deb --- /dev/null +++ b/system_cmds/zic.tproj/install_zoneinfo.sh @@ -0,0 +1,47 @@ +#!/bin/sh +set -e +set -x + +if [ -n "$RC_BRIDGE" ]; then + ACTUAL_PLATFORM_NAME="bridgeos" +else + ACTUAL_PLATFORM_NAME="${PLATFORM_NAME}" +fi + +# This sets up the paths for the default set of zoneinfo files +# On iOS, watchOS, and tvOS, this is handled by tzd in coordination with +# launchd on first boot. +# On macOS, the directory needs to be setup # during mastering for SIP +# protection, and the symlink for the BaseSystem. +# On bridgeOS tzd doesn't exist, so needs this all setup statically. +default_zoneinfo_setup() +{ + mkdir -p "${DSTROOT}/private/var/db/timezone" + chmod 555 "${DSTROOT}/private/var/db/timezone" + ln -hfs "/usr/share/zoneinfo.default" "${DSTROOT}/private/var/db/timezone/zoneinfo" +} + +case "$ACTUAL_PLATFORM_NAME" in +iphone*|appletv*|watch*|macosx) + ditto "${BUILT_PRODUCTS_DIR}/zoneinfo" "${DSTROOT}/usr/share/zoneinfo.default" + ln -hfs "/var/db/timezone/zoneinfo" "${DSTROOT}/usr/share/zoneinfo" + case "$ACTUAL_PLATFORM_NAME" in + macosx) + default_zoneinfo_setup + ;; + esac + ;; +bridge*) + # Since bridgeOS lacks any mechanism to change timezones (currently), + # and in the interest of saving space, only GMT is installed. + mkdir -p "${DSTROOT}/usr/share/zoneinfo.default" + chmod 555 "${DSTROOT}/usr/share/zoneinfo.default" + ditto "${BUILT_PRODUCTS_DIR}/zoneinfo/GMT" "${DSTROOT}/usr/share/zoneinfo.default/GMT" + default_zoneinfo_setup + ;; +*) + echo "Unsupported platform: $ACTUAL_PLATFORM_NAME" + exit 1 + ;; +esac + diff --git a/system_cmds/zic.tproj/private.h b/system_cmds/zic.tproj/private.h new file mode 100644 index 0000000..ae931b0 --- /dev/null +++ b/system_cmds/zic.tproj/private.h @@ -0,0 +1,272 @@ +#ifndef PRIVATE_H + +#define PRIVATE_H + +/* +** This file is in the public domain, so clarified as of +** 1996-06-05 by Arthur David Olson. +*/ + +/* + * FreeBSD modifications: separate libc's privates from zic's. + * This makes it easier when we need to update one but not the other. + * I have removed all of the ifdef spaghetti which is not relevant to + * zic from this file. + * + * $FreeBSD: head/contrib/tzcode/zic/private.h 207590 2010-05-03 22:32:26Z emaste $ + */ + +/* +** 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 +*/ + +#ifndef lint +#ifndef NOID +static const char privatehid[] = "@(#)private.h 8.6"; +#endif /* !defined NOID */ +#endif /* !defined lint */ + +#define GRANDPARENTED "Local time zone must be set--use tzsetup" + +/* +** Defaults for preprocessor symbols. +** You can override these in your C compiler options, e.g. `-DHAVE_ADJTIME=0'. +*/ + +#ifndef HAVE_GETTEXT +#define HAVE_GETTEXT 0 +#endif /* !defined HAVE_GETTEXT */ + +#ifndef HAVE_SYMLINK +#define HAVE_SYMLINK 1 +#endif /* !defined HAVE_SYMLINK */ + +#ifndef HAVE_SYS_STAT_H +#define HAVE_SYS_STAT_H 1 +#endif /* !defined HAVE_SYS_STAT_H */ + +#ifndef HAVE_SYS_WAIT_H +#define HAVE_SYS_WAIT_H 1 +#endif /* !defined HAVE_SYS_WAIT_H */ + +#ifndef HAVE_UNISTD_H +#define HAVE_UNISTD_H 1 +#endif /* !defined HAVE_UNISTD_H */ + +/* +** Nested includes +*/ + +#include "sys/types.h" /* for time_t */ +#include "stdio.h" +#include "errno.h" +#include "string.h" +#include "limits.h" /* for CHAR_BIT et al. */ +#include "time.h" +#include "stdlib.h" + +#if HAVE_GETTEXT +#include "libintl.h" +#endif /* HAVE_GETTEXT */ + +#if HAVE_SYS_WAIT_H +#include <sys/wait.h> /* for WIFEXITED and WEXITSTATUS */ +#endif /* HAVE_SYS_WAIT_H */ + +#if HAVE_UNISTD_H +#include "unistd.h" /* for F_OK and R_OK, and other POSIX goodness */ +#endif /* HAVE_UNISTD_H */ + +#ifndef F_OK +#define F_OK 0 +#endif /* !defined F_OK */ +#ifndef R_OK +#define R_OK 4 +#endif /* !defined R_OK */ + +/* Unlike <ctype.h>'s isdigit, this also works if c < 0 | c > UCHAR_MAX. */ +#define is_digit(c) ((unsigned)(c) - '0' <= 9) + +/* +** Define HAVE_STDINT_H's default value here, rather than at the +** start, since __GLIBC__'s value depends on previously-included +** files. +** (glibc 2.1 and later have stdint.h, even with pre-C99 compilers.) +*/ +#ifndef HAVE_STDINT_H +#define HAVE_STDINT_H \ + (199901 <= __STDC_VERSION__ || \ + 2 < (__GLIBC__ + (0 < __GLIBC_MINOR__))) +#endif /* !defined HAVE_STDINT_H */ + +#if HAVE_STDINT_H +#include "stdint.h" +#endif /* !HAVE_STDINT_H */ + +#ifndef INT_FAST64_MAX +/* Pre-C99 GCC compilers define __LONG_LONG_MAX__ instead of LLONG_MAX. */ +#if defined LLONG_MAX || defined __LONG_LONG_MAX__ +typedef long long int_fast64_t; +#else /* ! (defined LLONG_MAX || defined __LONG_LONG_MAX__) */ +#if (LONG_MAX >> 31) < 0xffffffff +Please use a compiler that supports a 64-bit integer type (or wider); +you may need to compile with "-DHAVE_STDINT_H". +#endif /* (LONG_MAX >> 31) < 0xffffffff */ +typedef long int_fast64_t; +#endif /* ! (defined LLONG_MAX || defined __LONG_LONG_MAX__) */ +#endif /* !defined INT_FAST64_MAX */ + +#ifndef INT32_MAX +#define INT32_MAX 0x7fffffff +#endif /* !defined INT32_MAX */ +#ifndef INT32_MIN +#define INT32_MIN (-1 - INT32_MAX) +#endif /* !defined INT32_MIN */ + +/* +** Workarounds for compilers/systems. + */ + +/* +** Some time.h implementations don't declare asctime_r. +** Others might define it as a macro. +** Fix the former without affecting the latter. + */ +#ifndef asctime_r +extern char * asctime_r(struct tm const *, char *); +#endif + + + +/* +** Private function declarations. +*/ +char * icalloc (int nelem, int elsize); +char * icatalloc (char * old, const char * new); +char * icpyalloc (const char * string); +char * imalloc (int n); +void * irealloc (void * pointer, int size); +void icfree (char * pointer); +void ifree (char * pointer); +const char * scheck (const char *string, const char *format); + +/* +** Finally, some convenience items. +*/ + +#ifndef TRUE +#define TRUE 1 +#endif /* !defined TRUE */ + +#ifndef FALSE +#define FALSE 0 +#endif /* !defined FALSE */ + +#ifndef TYPE_BIT +#define TYPE_BIT(type) (sizeof (type) * CHAR_BIT) +#endif /* !defined TYPE_BIT */ + +#ifndef TYPE_SIGNED +#define TYPE_SIGNED(type) (((type) -1) < 0) +#endif /* !defined TYPE_SIGNED */ + +/* +** Since the definition of TYPE_INTEGRAL contains floating point numbers, +** it cannot be used in preprocessor directives. +*/ + +#ifndef TYPE_INTEGRAL +#define TYPE_INTEGRAL(type) (((type) 0.5) != 0.5) +#endif /* !defined TYPE_INTEGRAL */ + +#ifndef INT_STRLEN_MAXIMUM +/* +** 302 / 1000 is log10(2.0) rounded up. +** Subtract one for the sign bit if the type is signed; +** add one for integer division truncation; +** add one more for a minus sign if the type is signed. +*/ +#define INT_STRLEN_MAXIMUM(type) \ + ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + \ + 1 + TYPE_SIGNED(type)) +#endif /* !defined INT_STRLEN_MAXIMUM */ + +/* +** INITIALIZE(x) +*/ + +#ifndef GNUC_or_lint +#ifdef lint +#define GNUC_or_lint +#endif /* defined lint */ +#ifndef lint +#ifdef __GNUC__ +#define GNUC_or_lint +#endif /* defined __GNUC__ */ +#endif /* !defined lint */ +#endif /* !defined GNUC_or_lint */ + +#ifndef INITIALIZE +#ifdef GNUC_or_lint +#define INITIALIZE(x) ((x) = 0) +#endif /* defined GNUC_or_lint */ +#ifndef GNUC_or_lint +#define INITIALIZE(x) +#endif /* !defined GNUC_or_lint */ +#endif /* !defined INITIALIZE */ + +/* +** For the benefit of GNU folk... +** `_(MSGID)' uses the current locale's message library string for MSGID. +** The default is to use gettext if available, and use MSGID otherwise. +*/ + +#ifndef _ +#if HAVE_GETTEXT +#define _(msgid) gettext(msgid) +#else /* !HAVE_GETTEXT */ +#define _(msgid) msgid +#endif /* !HAVE_GETTEXT */ +#endif /* !defined _ */ + +#ifndef TZ_DOMAIN +#define TZ_DOMAIN "tz" +#endif /* !defined TZ_DOMAIN */ + +/* +** UNIX was a registered trademark of The Open Group in 2003. +*/ + +#ifndef YEARSPERREPEAT +#define YEARSPERREPEAT 400 /* years before a Gregorian repeat */ +#endif /* !defined YEARSPERREPEAT */ + +/* +** The Gregorian year averages 365.2425 days, which is 31556952 seconds. +*/ + +#ifndef AVGSECSPERYEAR +#define AVGSECSPERYEAR 31556952L +#endif /* !defined AVGSECSPERYEAR */ + +#ifndef SECSPERREPEAT +#define SECSPERREPEAT ((int_fast64_t) YEARSPERREPEAT * (int_fast64_t) AVGSECSPERYEAR) +#endif /* !defined SECSPERREPEAT */ + +#ifndef SECSPERREPEAT_BITS +#define SECSPERREPEAT_BITS 34 /* ceil(log2(SECSPERREPEAT)) */ +#endif /* !defined SECSPERREPEAT_BITS */ + + /* + ** UNIX was a registered trademark of The Open Group in 2003. + */ + +#endif /* !defined PRIVATE_H */ diff --git a/system_cmds/zic.tproj/scheck.c b/system_cmds/zic.tproj/scheck.c new file mode 100644 index 0000000..10eea82 --- /dev/null +++ b/system_cmds/zic.tproj/scheck.c @@ -0,0 +1,68 @@ +/* +** This file is in the public domain, so clarified as of +** 2006-07-17 by Arthur David Olson. +*/ + +#ifndef lint +#ifndef NOID +static const char elsieid[] = "@(#)scheck.c 8.19"; +#endif /* !defined lint */ +#endif /* !defined NOID */ + +#ifndef lint +static const char rcsid[] = + "$FreeBSD: head/contrib/tzcode/zic/scheck.c 192625 2009-05-23 06:31:50Z edwin $"; +#endif /* not lint */ + +/*LINTLIBRARY*/ + +#include "private.h" + +const char * +scheck(string, format) +const char * const string; +const char * const format; +{ + register char * fbuf; + register const char * fp; + register char * tp; + register int c; + register const char * result; + char dummy; + + result = ""; + if (string == NULL || format == NULL) + return result; + fbuf = imalloc((int) (2 * strlen(format) + 4)); + if (fbuf == NULL) + return result; + fp = format; + tp = fbuf; + while ((*tp++ = c = *fp++) != '\0') { + if (c != '%') + continue; + if (*fp == '%') { + *tp++ = *fp++; + continue; + } + *tp++ = '*'; + if (*fp == '*') + ++fp; + while (is_digit(*fp)) + *tp++ = *fp++; + if (*fp == 'l' || *fp == 'h') + *tp++ = *fp++; + else if (*fp == '[') + do *tp++ = *fp++; + while (*fp != '\0' && *fp != ']'); + if ((*tp++ = *fp++) == '\0') + break; + } + *(tp - 1) = '%'; + *tp++ = 'c'; + *tp = '\0'; + if (sscanf(string, fbuf, &dummy) != 1) + result = (char *) format; + ifree(fbuf); + return result; +} diff --git a/system_cmds/zic.tproj/tz-art.htm b/system_cmds/zic.tproj/tz-art.htm new file mode 100644 index 0000000..56f78ac --- /dev/null +++ b/system_cmds/zic.tproj/tz-art.htm @@ -0,0 +1,278 @@ +<?xml version="1.0" encoding="US-ASCII"?> +<!DOCTYPE html +PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" +"DTD/xhtml1-strict.dtd"> +<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> +<head> +<meta http-equiv="Content-type" content='text/html; charset="US-ASCII"' /> +<title>Time and the Arts</title> +</head> +<body> +<h1>Time and the Arts</h1> +<address> +@(#)tz-art.htm 7.53 +</address> +<p> +Please send corrections to this web page to the +<a href="mailto:tz@elsie.nci.nih.gov">time zone mailing list</a>.</p> +<p> +See also <a href="tz-link.htm">Sources for Time Zone and Daylight Saving Time Data</a>.</p> +<hr /> +<p> +Data on recordings of "Save That Time," Russ Long, Serrob Publishing, BMI:</p> +<table> +<tr><td>Artist</td><td>Karrin Allyson</td></tr> +<tr><td>CD</td><td>I Didn't Know About You</td></tr> +<tr><td>Copyright Date</td><td>1993</td></tr> +<tr><td>Label</td><td>Concord Jazz, Inc.</td></tr> +<tr><td>ID</td><td>CCD-4543</td></tr> +<tr><td>Track Time</td><td>3:44</td></tr> +<tr><td>Personnel</td><td>Karrin Allyson, vocal; +Russ Long, piano; +Gerald Spaits, bass; +Todd Strait, drums</td></tr> +<tr><td>Notes</td><td>CD notes "additional lyric by Karrin Allyson; +arranged by Russ Long and Karrin Allyson"</td></tr> +<tr><td>ADO Rating</td><td>1 star</td></tr> +<tr><td><a href="http://www.allmusic.com/cg/amg.dll?p=amg&sql=A1fdovw9ta92k">AMG Rating</a></td><td>4 stars</td></tr> +<tr><td>Penguin Rating</td><td>3.5 stars</td></tr> +<tr><td> </td></tr> +<tr><td>Artist</td><td>Kevin Mahogany</td></tr> +<tr><td>CD</td><td>Double Rainbow</td></tr> +<tr><td>Copyright Date</td><td>1993</td></tr> +<tr><td>Label</td><td>Enja Records</td></tr> +<tr><td>ID</td><td>ENJ-7097 2</td></tr> +<tr><td>Track Time</td><td>6:27</td></tr> +<tr><td>Personnel</td><td>Kevin Mahogany, vocal; +Kenny Barron, piano; +Ray Drummond, bass; +Ralph Moore, tenor saxophone; +Lewis Nash, drums</td></tr> +<tr><td>ADO Rating</td><td>1.5 stars</td></tr> +<tr><td><a href="http://www.allmusic.com/cg/amg.dll?p=amg&sql=Akikbikzjbb19">AMG Rating</a></td><td>3 stars</td></tr> +<tr><td>Penguin Rating</td><td>3 stars</td></tr> +<tr><td> </td></tr> +<tr><td>Artist</td><td>Joe Williams</td></tr> +<tr><td>CD</td><td>Here's to Life</td></tr> +<tr><td>Copyright Date</td><td>1994</td></tr> +<tr><td>Label</td><td>Telarc International Corporation</td></tr> +<tr><td>ID</td><td>CD-83357</td></tr> +<tr><td>Track Time</td><td>3:58</td></tr> +<tr><td>Personnel</td><td>Joe Williams, vocal +The Robert Farnon [39 piece] Orchestra</td></tr> +<tr><td>Notes</td><td>This CD is also available as part of a 3-CD package from +Telarc, "Triple Play" (CD-83461)</td></tr> +<tr><td>ADO Rating</td><td>black dot</td></tr> +<tr><td><a href="http://www.allmusic.com/cg/amg.dll?p=amg&sql=Amyyvad6kt8w1">AMG Rating</a></td><td>2 stars</td></tr> +<tr><td>Penguin Rating</td><td>3 stars</td></tr> +<tr><td> </td></tr> +<tr><td>Artist</td><td>Charles Fambrough</td></tr> +<tr><td>CD</td><td>Keeper of the Spirit</td></tr> +<tr><td>Copyright Date</td><td>1995</td></tr> +<tr><td>Label</td><td>AudioQuest Music</td></tr> +<tr><td>ID</td><td>AQ-CD1033</td></tr> +<tr><td>Track Time</td><td>7:07</td></tr> +<tr><td>Personnel</td><td>Charles Fambrough, bass; +Joel Levine, tenor recorder; +Edward Simon, piano; +Lenny White, drums; +Marion Simon, percussion</td></tr> +<tr><td>Notes</td><td>On-line information and samples available at +<a href="http://wwmusic.com/~music/audioq/rel/1033.html">http://wwmusic.com/~music/audioq/rel/1033.html</a></td></tr> +<tr><td>ADO Rating</td><td>2 stars</td></tr> +<tr><td><a href="http://www.allmusic.com/cg/amg.dll?p=amg&sql=A5rkcikcjbb89">AMG Rating</a></td><td>unrated</td></tr> +<tr><td>Penguin Rating</td><td>3 stars</td></tr> +</table> +<hr /> +<p>Also of note:</p> +<table> +<tr><td>Artist</td><td>Holly Cole Trio</td></tr> +<tr><td>CD</td><td>Blame It On My Youth</td></tr> +<tr><td>Copyright Date</td><td>1992</td></tr> +<tr><td>Label</td><td>Manhattan</td></tr> +<tr><td>ID</td><td>CDP 7 97349 2</td></tr> +<tr><td>Total Time</td><td>37:45</td></tr> +<tr><td>Personnel</td><td>Holly Cole, voice; +Aaron Davis, piano; +David Piltch, string bass</td></tr> +<tr><td>Notes</td><td>Lyrical reference to "Eastern Standard Time" in +Tom Waits' "Purple Avenue"</td></tr> +<tr><td>ADO Rating</td><td>2.5 stars</td></tr> +<tr><td><a href="http://www.allmusic.com/cg/amg.dll?p=amg&sql=A3a9ds37ya3dg">AMG Rating</a></td><td>3 stars</td></tr> +<tr><td>Penguin Rating</td><td>unrated</td></tr> +<tr><td> </td></tr> +<tr><td>Artist</td><td>Milt Hinton</td></tr> +<tr><td>CD</td><td>Old Man Time</td></tr> +<tr><td>Copyright Date</td><td>1990</td></tr> +<tr><td>Label</td><td>Chiaroscuro</td></tr> +<tr><td>ID</td><td>CR(D) 310</td></tr> +<tr><td>Total Time</td><td>149:38 (two CDs)</td></tr> +<tr><td>Personnel</td><td>Milt Hinton, bass; +Doc Cheatham, Dizzy Gillespie, Clark Terry, trumpet; +Al Grey, trombone; +Eddie Barefield, Joe Camel (Flip Phillips), Buddy Tate, +clarinet and saxophone; +John Bunch, Red Richards, Norman Simmons, Derek Smith, +Ralph Sutton, piano; +Danny Barker, Al Casey, guitar; +Gus Johnson, Gerryck King, Bob Rosengarden, Jackie Williams, +drums; +Lionel Hampton, vibraphone; +Cab Calloway, Joe Williams, vocal; +Buck Clayton, arrangements</td></tr> +<tr><td>Notes</td><td>tunes include Old Man Time, Time After Time, +Sometimes I'm Happy, +A Hot Time in the Old Town Tonight, +Four or Five Times, Now's the Time, +Time on My Hands, This Time It's Us, +and Good Time Charlie +On-line samples available at +<a href="http://www.chiaroscurojazz.com/albuminfo.php4?albumid=49">http://www.chiaroscurojazz.com/albuminfo.php3?albumid=49</a></td></tr> +<tr><td>ADO Rating</td><td>3 stars</td></tr> +<tr><td><a href="http://www.allmusic.com/cg/amg.dll?p=amg&sql=A1cbyxdab8ola">AMG Rating</a></td><td>4.5 stars</td></tr> +<tr><td>Penguin Rating</td><td>3 stars</td></tr> +<tr><td> </td></tr> +<tr><td>Artist</td><td>Alan Broadbent</td></tr> +<tr><td>CD</td><td>Pacific Standard Time</td></tr> +<tr><td>Copyright Date</td><td>1995</td></tr> +<tr><td>Label</td><td>Concord Jazz, Inc.</td></tr> +<tr><td>ID</td><td>CCD-4664</td></tr> +<tr><td>Total Time</td><td>62:42</td></tr> +<tr><td>Personnel</td><td>Alan Broadbent, piano; +Putter Smith, Bass; +Frank Gibson, Jr., drums</td></tr> +<tr><td>Notes</td><td>The CD cover features an analemma for equation-of-time fans</td></tr> +<tr><td>ADO Rating</td><td>1 star</td></tr> +<tr><td><a href="http://www.allmusic.com/cg/amg.dll?p=amg&sql=Asl8zefuk8gfo">AMG Rating</a></td><td>4 stars</td></tr> +<tr><td>Penguin Rating</td><td>3.5 stars</td></tr> +<tr><td> </td></tr> +<tr><td>Artist</td><td>Anthony Braxton/Richard Teitelbaum</td></tr> +<tr><td>CD</td><td>Silence/Time Zones</td></tr> +<tr><td>Copyright Date</td><td>1996</td></tr> +<tr><td>Label</td><td>Black Lion</td></tr> +<tr><td>ID</td><td>BLCD 760221</td></tr> +<tr><td>Total Time</td><td>72:58</td></tr> +<tr><td>Personnel</td><td>Anthony Braxton, sopranino and alto saxophones, +contrebasse clarinet, miscellaneous instruments; +Leo Smith, trumpet and miscellaneous instruments; +Leroy Jenkins, violin and miscellaneous instruments; +Richard Teitelbaum, modular moog and micromoog synthesizer</td></tr> +<tr><td>ADO Rating</td><td>black dot</td></tr> +<tr><td><a href="http://www.allmusic.com/cg/amg.dll?p=amg&sql=A5bkvu3xjan1k">AMG Rating</a></td><td>unrated</td></tr> +<tr><td> </td></tr> +<tr><td>Artist</td><td>Jules Verne</td></tr> +<tr><td>Book</td><td>Le Tour du Monde en Quatre-Vingts Jours +(Around the World in Eighty Days)</td></tr> +<tr><td>Notes</td><td>Wall-clock time plays a central role in the plot. +European readers of the 1870s clearly held the U.S. press in +deep contempt; the protagonists cross the U.S. without once +reading a paper. +An on-line French-language version of the book +"with illustrations from the original 1873 French-language edition" +is available at +<a href="http://fourmilab.ch/etexts/www/tdm80j">http://fourmilab.ch/etexts/www/tdm80j</a> +An on-line English-language translation of the book is available at +<a href="http://www.literature.org/Works/Jules-Verne/eighty">http://www.literature.org/Works/Jules-Verne/eighty</a></td></tr> +<tr><td> </td></tr> +<tr><td>Film</td><td>Bell Science - About Time</td></tr> +<tr><td>Notes</td><td>The Frank Baxter/Richard Deacon extravaganza +Information on ordering is available at +<a href="http://www.videoflicks.com/VF2/1035/1035893.ihtml">http://www.videoflicks.com/VF2/1035/1035893.ihtml</a></td></tr> +</table> +<hr /> +<ul> +<li> +An episode of "The Adventures of Superman" entitled "The Mysterious +Cube," first aired 1958-02-24, had Superman convincing the controllers +of WWV to broadcast time signals five minutes ahead of actual time; +doing so got a crook trying to beat the statute of limitations to +emerge a bit too early from the titular enclosure. +</li> +<li> +The 1960s ITC television series "The Prisoner" included an episode +entitled "The Chimes of Big Ben" in which our protagonist tumbled to +the fraudulent nature of a Poland-to-England escape upon hearing "Big +Ben" chiming on Polish local time. +</li> +<li> +The series "Seinfeld" included an episode entitled "The Susie," first +broadcast 1997-02-13, in which Kramer decides that daylight saving time +isn't coming fast enough, so he sets his watch ahead an hour. +</li> +<li> +The syndicated comic strip "Dilbert" featured an all-too-rare example of +time zone humor on 1998-03-14. +</li> +<li> +Surrealist artist Guy Billout's work "Date Line" appeared on page 103 +of the 1999-11 Atlantic Monthly. +</li> +<li> +"Gloom, Gloom, Go Away" by Walter Kirn appeared on page 106 of Time +Magazine's 2002-11-11 issue; among other things, it proposed +year-round DST as a way of lessening wintertime despair. +</li> +<li> +The "20 Hours in America" episode of "The West Wing," first aired 2002-09-25, +saw White House staffers stranded in Indiana; they thought they had time to +catch Air Force One but were done in by intra-Indiana local time changes. +</li> +<li> +"In what time zone would you find New York City?" was a $200 question on +the 1999-11-13 United States airing of "Who Wants to Be a Millionaire?" +"In 1883, what industry led the movement to divide the U.S. into four time +zones?" was a $32,000 question on the 2001-05-23 United States airing of +"Who Wants to Be a Millionaire?" At this rate, the million-dollar time-zone +question should have been asked 2002-06-04. +</li> +</ul> +<hr /> +<ul> +<li> +"We're been using the five-cent nickle in this country since 1492. +Now that's pretty near 100 years, daylight savings [sic]." +(Groucho Marx as Captain Spaulding in "Animal Crackers", 1930, +as noted by Will Fitzerald, wfitzgerald@ameritech.net) +</li> +<li> +"Good news." +"What did they do? Extend Daylight Saving Time year round?" +(Professional tanner George Hamilton, in dialog from a +May, 1999 episode of the syndicated television series "Baywatch") +</li> +<li> +"A fundamental belief held by Americans is that if you are on land, you +cannot be killed by a fish...So most Americans remain on land, believing +they're safe. Unfortunately, this belief—like so many myths, such as that +there's a reason for 'Daylight Saving Time'—is false." +(Dave Barry column, 2000-07-02) +</li> +<li> +"I once had sex for an hour and five minutes, but that was on the day +when you turn the clocks ahead." +(Garry Shandling, 52nd Annual Emmys, 2000-09-10) +</li> +<li> +"Would it impress you if I told you I invented Daylight Savings Time?" +("Sahjhan" to "Lilah" in dialog from the "Loyalty" episode of "Angel," +originally aired 2002-02-25) +</li> +<li> +"I thought you said Tulsa was a three hour flight." +"Well, you're forgetting about the time difference." +("Chandler" and "Joey" in dialog from the episode of "Friends" first +aired 2002-12-05) +</li> +<li> +"Is that a pertinent fact, +or are you trying to dazzle me with your command of time zones?" +(Kelsey Grammer as "Frasier Crane") +</li> +<li> +"Don't worry about the world coming to an end today. +It is already tomorrow in Australia." +(Charles M. Schulz, provided by Steve Summit) +</li> +</ul> +</body> +</html> diff --git a/system_cmds/zic.tproj/tz-link.htm b/system_cmds/zic.tproj/tz-link.htm new file mode 100644 index 0000000..0e63073 --- /dev/null +++ b/system_cmds/zic.tproj/tz-link.htm @@ -0,0 +1,443 @@ +<?xml version="1.0" encoding="US-ASCII"?> +<!DOCTYPE html + PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" + "DTD/xhtml1-strict.dtd"> +<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> +<head> +<title>Sources for Time Zone and Daylight Saving Time Data</title> +<link rel="schema.DC" href="http://purl.org/DC/elements/1.1/" /> +<meta http-equiv="Content-type" content='text/html; charset="US-ASCII"' /> +<meta name="DC.Creator" content="Eggert, Paul" /> +<meta name="DC.Contributor" content="Olson, Arthur David" /> +<meta name="DC.Date" content="2004-05-24" /> +<meta name="DC.Description" + content="Sources of information about time zones and daylight saving time" /> +<meta name="DC.Identifier" content="http://www.twinsun.com/tz/tz-link.htm" /> +<meta name="Keywords" + content="database,daylight saving,DST,time zone,timezone,tz,zoneinfo" /> +</head> +<body> +<h1>Sources for Time Zone and Daylight Saving Time Data</h1> +<address> +@(#)tz-link.htm 7.42 +</address> +<p> +Please send corrections to this web page to the +<a href="mailto:tz@elsie.nci.nih.gov">time zone mailing list</a>. +</p> +<h2>The <code>tz</code> database</h2> +<p> +The public-domain time zone database contains code and data +that represent the history of local time +for many representative locations around the globe. +It is updated periodically to reflect changes made by political bodies +to UTC offsets and daylight-saving rules. +This database (often called <code>tz</code> or <code>zoneinfo</code>) +is used by several implementations, +including +<a href="http://www.gnu.org/software/libc/">the GNU C Library</a> used in +<a href="http://www.linux.org/">GNU/Linux</a>, +<a href="http://www.freebsd.org/">FreeBSD</a>, +<a href="http://www.netbsd.org/">NetBSD</a>, +<a href="http://www.openbsd.org/">OpenBSD</a>, +<a href="http://www.cygwin.com/">Cygwin</a>, +<a href="http://www.delorie.com/djgpp/">DJGPP</a>, +<a href="http://www.hp.com/products1/unix/operating/">HP-UX</a>, +<a href="http://www.sgi.com/developers/technology/irix/">IRIX</a>, +<a href="http://www.apple.com/macosx/">Mac OS X</a>, +<a href="http://h71000.www7.hp.com/">OpenVMS</a>, +<a href="http://wwws.sun.com/software/solaris/">Solaris</a>, +<a href="http://www.tru64unix.compaq.com/">Tru64</a>, and +<a href="http://www.sco.com/products/unixware/">UnixWare</a>.</p> +<p> +Each location in the database represents a national region where all +clocks keeping local time have agreed since 1970. +Locations are identified by continent or ocean and then by the name of +the location, which is typically the largest city within the region. +For example, <code>America/New_York</code> +represents most of the US eastern time zone; +<code>America/Indianapolis</code> represents most of Indiana, which +uses eastern time without daylight saving time (DST); +<code>America/Detroit</code> represents most of Michigan, which uses +eastern time but with different DST rules in 1975; +and other entries represent smaller regions like Starke County, +Kentucky, which switched from central to eastern time in 1991. +To use the database, set the <code>TZ</code> environment variable to +the location's full name, e.g., <code>TZ="America/New_York"</code>.</p> +<p> +In the <code>tz</code> database's +<a href="ftp://elsie.nci.nih.gov/pub/">FTP distribution</a>, +the code is in the file <code>tzcode<var>C</var>.tar.gz</code>, +where <code><var>C</var></code> is the code's version; +similarly, the data are in <code>tzdata<var>D</var>.tar.gz</code>, +where <code><var>D</var></code> is the data's version. +The following shell commands download +these files to a GNU/Linux or similar host; see the downloaded +<code>README</code> file for what to do next.</p> +<pre style="margin-left: 2em"><code><a href="http://www.gnu.org/software/wget/">wget</a> 'ftp://elsie.nci.nih.gov/pub/tz*.tar.gz' +<a href="http://www.gnu.org/software/gzip/">gzip</a> -dc tzcode*.tar.gz | <a href="http://www.gnu.org/software/tar/">tar</a> -xf - +gzip -dc tzdata*.tar.gz | tar -xf - +</code></pre> +<p> +The code lets you compile the <code>tz</code> source files into +machine-readable binary files, one for each location. It also lets +you read a <code>tz</code> binary file and interpret time stamps for that +location.</p> +<p> +The data are by no means authoritative. If you find errors, please +send changes to the <a href="mailto:tz@elsie.nci.nih.gov">time zone +mailing list</a>. You can also <a +href="mailto:tz-request@elsie.nci.nih.gov">subscribe</a> to the +mailing list, retrieve the <a +href="ftp://elsie.nci.nih.gov/pub/tzarchive.gz">archive of old +messages</a> (in gzip compressed format), or retrieve <a +href="ftp://munnari.oz.au/pub/oldtz/">archived older versions of code +and data</a>.</p> +<p> +The Web has several other sources for time zone and daylight saving time data. +Here are some recent links that may be of interest. +</p> +<h2>Web pages using recent versions of the <code>tz</code> database</h2> +<ul> +<li><a href="http://twiki.org/cgi-bin/xtra/tzdate">Date and Time Gateway</a> +is a text-based point-and-click interface to tables of current time +throughout the world.</li> +<li>Fancier web interfaces, roughly in ascending order of complexity, include: +<ul> +<li><a href="http://www.hilink.com.au/times/">Local Times Around the +World</a></li> +<li><a href="http://www.convertit.com/Go/ConvertIt/World_Time/Current_Time.ASP">Current Time in 1000 Places</a></li> +<li><a href="http://timezoneconverter.com/">Time Zone Converter</a></li> +</ul></li> +<li><a href="http://www.holidayfestival.com/">The Worldwide Holiday +& Festival Site</a> lists DST-related clock changes along with +holidays.</li> +<li><a href="http://www.timeanddate.com/worldclock/">The World Clock - +Time Zones</a> +is a web interface to a time zone database derived from +<code>tz</code>'s.</li> +</ul> +<h2>Other time zone database formats</h2> +<ul> +<li>The <a href="ftp://ftp.rfc-editor.org/in-notes/rfc2445.txt"> +Internet Calendaring and Scheduling Core Object Specification +(iCalendar)</a> specification published by the <a +href="http://www.ietf.org/html.charters/calsch-charter.html">IETF +Calendaring and Scheduling Working Group (calsch)</a> covers time zone +data; see its VTIMEZONE calendar component.</li> +<li>The <a +href="http://lists.w3.org/Archives/Public/www-rdf-calendar/">www-rdf-calendar</a> +list discusses <a href="http://www.w3.org/RDF/">RDF</a>-based calendar +and group scheduling systems, and has a <a +href="http://www.w3.org/2002/12/cal/#tzd">workspace on time zone +data</a> converted from <code>tz</code>. An earlier <a +href="http://www.w3.org/2000/01/foo">schema</a> was sketched out by <a +href="http://www.w3.org/People/Berners-Lee/">Tim Berners-Lee</a>.</li> +<li><a +href="http://www.calsch.org/ietf/archives/draft-ietf-calsch-many-xcal-02.txt">XCal</a> +was a draft <a href="http://www.w3.org/XML/">XML</a> document type +definition that corresponded to iCalendar.</li> +</ul> +<h2>Other <code>tz</code> compilers</h2> +<ul> +<li><a href="http://www.dachaplin.dsl.pipex.com/vzic">Vzic iCalendar +Timezone Converter</a> describes a program Vzic that compiles +<code>tz</code> source into iCalendar-compatible VTIMEZONE files. +Vzic is freely +available under the <a href="http://www.gnu.org/copyleft/gpl.html">GNU +General Public License (GPL)</a>.</li> +<li><a +href="http://search.cpan.org/dist/DateTime-TimeZone/">DateTime::TimeZone</a> +contains a script <code>parse_olson</code> that compiles +<code>tz</code> source into <a href="http://www.perl.org/">Perl</a> +modules. It is part of the Perl <a +href="http://datetime.perl.org/">DateTime Project</a>, which is freely +available under both the GPL and the Perl <a +href="http://www.perl.com/language/misc/Artistic.html">Artistic +License</a>. DateTime::TimeZone also contains a script +<code>tests_from_zdump</code> that generates test cases for each clock +transition in the <code>tz</code> database.</li> +<li><a href="http://oss.software.ibm.com/icu/">International Components for +Unicode (ICU)</a> contains a C/C++ library for internationalization that +has a compiler from <samp>tz</samp> source into an ICU-specific format. +ICU is freely available under a BSD-style license.</li> +<li><a href="http://joda-time.sourceforge.net/">Joda Time - Java date +and time API</a> contains a class +<code>org.joda.time.tz.ZoneInfoCompiler</code> that compiles +<code>tz</code> source into a Joda-specific binary format. Joda Time +is freely available under a BSD-style license.</li> +</ul> +<h2>Other <code>tz</code> binary file readers</h2> +<ul> +<li>The <a href="http://www.gnu.org/software/libc/">GNU C Library</a> +has an independent, thread-safe implementation of +a <code>tz</code> binary file reader. +This library is freely available under the +<a href="http://www.gnu.org/copyleft/lesser.html"> +GNU Lesser General Public License (LGPL)</a>, +and is widely used in GNU/Linux systems.</li> +<li><a href="http://www.bmsi.com/java/#TZ">ZoneInfo.java</a> +is a <code>tz</code> binary file reader written in Java. +It is freely available under the GNU LGPL.</li> +<li><a href="http://s.keim.free.fr/tz/doc.html">Python time zones</a> +is a <code>tz</code> binary file reader written in <a +href="http://www.python.org/">Python</a>. It is freely available +under a BSD-style license.</li> +</ul> +<h2>Other <code>tz</code>-based time zone conversion software</h2> +<ul> +<li><a href="http://java.sun.com/">Sun Java</a> releases since 1.4 +contain a copy of a recent <samp>tz</samp> database in a Java-specific +format.</li> +<li><a +href="http://www1.tip.nl/~t876506/AboutTimeZonesHC.html">HyperCard +time zones calculator</a> is a HyperCard stack.</li> +<li><a +href="http://www.cimmyt.org/timezone/">World Time Explorer</a> is a +Microsoft Windows program.</li> +</ul> +<h2>Other time zone databases</h2> +<ul> +<li><a href="http://www.astro.com/cgi-bin/atlw3/aq.cgi?lang=e">Atlas Query +- Astrodienst</a> is Astrodienst's Web version of Shanks's +excellent time zone history atlases published in both <a +href="http://astrocom.com/software/pcatlas.php">computer</a> and <a +href="http://astrocom.com/books/xrefa.php#SHANKS">book</a> form by <a +href="http://astrocom.com/">Astro Communications Services</a>.</li> +<li><a href="http://worldtime.com/">WORLDTIME: interactive atlas, +time info, public holidays</a> +contains information on local time, sunrise and sunset, +and public holidays in several hundred cities around the world.</li> +<li><a href="http://www.worldtimeserver.com/">World Time Server</a> +is another time zone database.</li> +<li><a href="http://tycho.usno.navy.mil/tzones.html">World Time Zones</a> +contains data from the Time Service Department of the US Naval Observatory +(USNO), used as the source +for the <code>usno*</code> files in the <code>tz</code> distribution.</li> +<li><a href="http://www.airportcitycodes.com/aaa/">Airlines, Airplanes +and Airports</a> lists current standard times for thousands of +airports around the world. This seems to be derived from +the <a href="http://www.iata.org/sked/publications/">Standard +Schedules Information Manual (SSIM)</a> of the +the <a href="http://www.iata.org/">International Air Transport +Association</a>, +which gives current time zone rules for +all the airports served by commercial aviation.</li> +</ul> +<h2>Maps</h2> +<ul> +<li>The <a href="http://www.odci.gov/">United States Central +Intelligence Agency (CIA)</a> publishes a <a +href="http://www.odci.gov/cia/publications/factbook/reference_maps/pdf/time_zones.pdf">time +zone map</a>; the +<a +href="http://www.lib.utexas.edu/maps/world.html">Perry-Castañeda +Library Map Collection</a> +of the University of Texas at Austin has copies of +recent editions. +The pictorial quality is good, +but the maps do not indicate summer time, +and parts of the data are a few years out of date.</li> +<li><a href="http://worldtimezone.com/">World timezones map with +current time</a> +has several fancy time zone maps; it covers Russia particularly well. +The maps' pictorial quality is not quite as good as the CIA's +but the maps are more up to date.</li> +</ul> +<h2>Time zone boundaries</h2> +<ul> +<li><a href="http://home-4.tiscali.nl/~t876506/Multizones.html">Time +zone boundaries for multizone countries</a> summarizes legal +boundaries between time zones within countries.</li> +<li>Manifold.net's <a +href="http://www.manifold.net/download/freemaps.html">Free Maps and +GIS Data</a> includes a Manifold-format map of world time zone +boundaries distributed under the GPL. The GeoCommunity's <a +href="http://software.geocomm.com/data/intl_timezones.html">International +Time Zones</a> publishes the same data in other formats.</li> +<li>The US Geological Survey's National Atlas of the United States +publishes the <a href="http://www.nationalatlas.gov/timeznm.html">Time +Zones of the United States</a> in the public domain.</li> +<li>The GeoCommunity lists several commercial sources for <a +href="http://spatialnews.geocomm.com/features/timezones/">International +Time Zones and Time Zone Data</a>.</li> +</ul> +<h2>Civil time concepts and history</h2> +<ul> +<li><a href="http://physics.nist.gov/time">A Walk through Time</a> +surveys the evolution of timekeeping.</li> +<li><a href="http://webexhibits.org/daylightsaving/">About Daylight +Saving Time - History, rationale, laws and dates</a> +is an overall history of DST.</li> +<li><a href="http://toi.iriti.cnr.it/">The +Time of Internet</a> +describes time zones and daylight saving time, +with diagrams. +The time zone map is out of date, however.</li> +<li><a href="http://www.phys.uu.nl/~vgent/idl/idl.htm">A History of +the International Date Line</a> tells the story of the most important +time zone boundary.</li> +<li><a href="http://www.statoids.com/tconcept.html">Basic Time +Zone Concepts</a> discusses terminological issues behind time zones.</li> +</ul> +<h2>National histories of legal time</h2> +<dl> +<dt>Australia</dt> +<dd>The Community Relations Division of the New South Wales (NSW) +Attorney General's Department maintains a <a +href="http://www.lawlink.nsw.gov.au/crd.nsf/pages/time2">history of +daylight saving in NSW</a>.</dd> +<dt>Austria</dt> +<dd>The Federal Office of Metrology and Surveying publishes a +table of <a href="http://www.metrologie.at/pdf/sommerzeit.pdf" +hreflang="de">daylight saving time in Austria (in German)</a>.</dd> +<dt>Belgium</dt> +<dd>The Royal Observatory of Belgium maintains a table of <a +href="http://www.astro.oma.be/GENERAL/INFO/nli001a.html" +hreflang="nl">time in Belgium (in Dutch)</a>.</dd> +<dt>Brazil</dt> +<dd>The Time Service Department of the National Observatory +records <a href="http://pcdsh01.on.br/DecHV.html" +hreflang="pt-BR">Brazil's daylight saving time decrees (in +Portuguese)</a>.</dd> +<dt>Canada</dt> +<dd>The Institute for National Measurement Standards publishes current +and some older information about <a +href="http://inms-ienm.nrc-cnrc.gc.ca/time_services/daylight_savings_e.html">Time +Zones and Daylight Saving Time</a>.</dd> +<dt>Chile</dt> +<dd>WebExhibits publishes a <a +href="http://webexhibits.org/daylightsaving/chile.html" +hreflang="es">history of official time (in Spanish)</a> originally +written by the Chilean Hydrographic and Oceanographic Service.</dd> +<dt>Germany</dt> +<dd>The National Institute for Science and Technology maintains the <a +href="http://www.ptb.de/en/org/4/44/441/dars_e.htm">Realisation of +Legal Time in Germany</a>.</dd> +<dt>Israel</dt> +<dd>The Interior Ministry periodically issues <a +href="ftp://ftp.cs.huji.ac.il/pub/tz/announcements/" +hreflang="he">announcements (in Hebrew)</a>.</dd> +<dt>Mexico</dt> +<dd>The Investigation and Analysis Service of the Mexican Library of +Congress has published a <a +href="http://www.cddhcu.gob.mx/bibliot/publica/inveyana/polisoc/horver/" +hreflang="es">history of Mexican local time (in Spanish)</a>.</dd> +<dt>Malaysia</dt> +<dd>See Singapore below.</dd> +<dt>Netherlands</dt> +<dd><a href="http://www.phys.uu.nl/~vgent/wettijd/wettijd.htm" +hreflang="nl">Legal time in the Netherlands (in Dutch)</a> +covers the history of local time in the Netherlands from ancient times.</dd> +<dt>New Zealand</dt> +<dd>The Department of Internal Affairs maintains a brief history <a +href="http://www.dia.govt.nz/diawebsite.nsf/wpg_URL/Resource-material-Information-We-Provide-About-Daylight-Saving">about +daylight saving</a>. The privately-maintained <a +href="http://www.astrologyhouse.co.nz/timechanges.htm">Time Changes in +New Zealand</a> has more details.</dd> +<dt>Singapore</dt> +<dd><a +href="http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html">Why +is Singapore in the "Wrong" Time Zone?</a> details the +history of legal time in Singapore and Malaysia.</dd> +<dt>United Kingdom</dt> +<dd><a +href="http://www.srcf.ucam.org/~jsm28/british-time/">History of +legal time in Britain</a> discusses in detail the country +with perhaps the best-documented history of clock adjustments. +The National Physical Laboratory also maintains an <a +href="http://www.npl.co.uk/time/summer_time_archive.html">archive +of summer time dates</a>.</dd> +</dl> +<h2>Precision timekeeping</h2> +<ul> +<li><a +href="http://literature.agilent.com/litwebbin/purl.cgi?org_id=tmo&pub_id=5965-7984E">The +Science of Timekeeping</a> is a thorough introduction +to the theory and practice of precision timekeeping.</li> +<li><a href="http://www.ntp.org/">NTP: The Network Time Protocol</a> +discusses how to synchronize clocks of +Internet hosts.</li> +<li><a href="http://gauss.gge.unb.ca/GMT.UT.and.the.RGO.txt" +charset="macintosh">A +Few Facts Concerning GMT, UT, and the RGO</a> +answers questions like "What is the difference between GMT and UTC?"</li> +<li><a +href="http://www.gb.nrao.edu/~rfisher/Ephemerides/times.html">Astronomical +Times</a> explains more abstruse astronomical time scales like TT, TCG, +and TDB.</li> +<li>The <a href="http://www.iau.org/">IAU</a>'s <a +href="http://www.iau-sofa.rl.ac.uk/">Standards Of Fundamental +Astronomy</a> (SOFA) initiative publishes Fortran code for converting +among time scales like TAI, TDB, TT and UTC.</li> +<li><a href="http://www.jpl.nasa.gov/basics/bsf2-3.htm">Basics of +Space Flight - Reference Systems - Time Conventions</a> +briefly explains interplanetary space flight timekeeping.</li> +<li><a +href="http://www.giss.nasa.gov/tools/mars24/help/notes.html">Technical +Notes on Mars Solar Time as Adopted by the Mars24 Sunclock</a> briefly +describes Mars Coordinated Time (MTC) and the diverse local time +scales used by each landed mission on Mars.</li> +<li><a +href="http://hpiers.obspm.fr/eop-pc/products/bulletins/bulletins.html">Bulletins +maintained by the IERS EOP (PC)</a> contains official publications of +the Earth Orientation Parameters Product Center of the +International Earth Rotation Service, the committee that decides +when leap seconds occur.</li> +<li>The <a +href="http://www.mail-archive.com/leapsecs@rom.usno.navy.mil/">Leap +Second Discussion List</a> covers McCarthy and Klepczynski's proposal +to discontinue leap seconds, published in <a +href="http://www.gpsworld.com/">GPS World</a> <strong>10</strong>, 11 +(1999-11), 50–57 and discussed further in R. A. Nelson et al., +<a href="http://www.cl.cam.ac.uk/~mgk25/time/metrologia-leapsecond.pdf">The +leap second: its history and possible future</a>, +<a href="http://www.bipm.fr/metrologia/metrologia.html">Metrologia</a> +<strong>38</strong> (2001), 509–529. +<a href="http://www.ucolick.org/~sla/leapsecs/onlinebib.html">The +Future of Leap Seconds</a> catalogs information about this +contentious issue.</li> +</ul> +<h2>Time notation</h2> +<ul> +<li> +<a href="http://www.cl.cam.ac.uk/~mgk25/iso-time.html">A Summary of +the International Standard Date and Time Notation</a> is a good +summary of ISO +8601:1988 - Data elements and interchange formats - Information interchange +- Representation of dates and times (which has been superseded by +<a href="http://www.iso.org/iso/en/CatalogueDetailPage.CatalogueDetail?CSNUMBER=26780">ISO 8601:2000</a>).</li> +<li> +Section 3.3 of <a +href="ftp://ftp.rfc-editor.org/in-notes/rfc2822.txt">Internet RFC 2822</a> +specifies the time notation used in email and <a +href="ftp://ftp.rfc-editor.org/in-notes/rfc2616.txt">HTTP</a> headers.</li> +<li> +<a href="ftp://ftp.rfc-editor.org/in-notes/rfc3339.txt">Internet RFC +3339</a> specifies an ISO 8601 profile for use in new Internet +protocols.</li> +<li> +<a href="http://www.exit109.com/~ghealton/y2k/yrexamples.html">The +Best of Dates, the Worst of Dates</a> covers many problems encountered +by software developers when handling dates and time stamps.</li> +<li> +Alphabetic time zone abbreviations should not be used as unique +identifiers for UTC offsets as they are ambiguous in practice. For +example, "EST" denotes 5 hours behind UTC in English-speaking North +America, but it denotes 10 or 11 hours ahead of UTC in Australia; +and French-speaking North Americans prefer "HNE" to "EST". For +compatibility with <a href="http://www.pasc.org/#POSIX">POSIX</a> the +<code>tz</code> database contains English abbreviations for all time +stamps but in many cases these are merely inventions of the database +maintainers.</li> +</ul> +<h2>Related indexes</h2> +<ul> +<li><a href="tz-art.htm">Time and the Arts</a></li> +<li><a href="http://dmoz.org/Reference/Time/">Open Directory - +Reference: Time</a></li> +<li><a href="http://directory.google.com/Top/Reference/Time/">Google Directory - Reference > Time</a></li> +<li><a href="http://dir.yahoo.com/Science/Measurements_and_Units/Time/">Yahoo! Science > Measurements and Units > Time</a></li> +</ul> +</body> +</html> diff --git a/system_cmds/zic.tproj/tzfile.h b/system_cmds/zic.tproj/tzfile.h new file mode 100644 index 0000000..ec4009b --- /dev/null +++ b/system_cmds/zic.tproj/tzfile.h @@ -0,0 +1,192 @@ +#ifndef TZFILE_H +#define TZFILE_H + + +/* +** This file is in the public domain, so clarified as of +** 1996-06-05 by Arthur David Olson. +** +** $FreeBSD: head/contrib/tzcode/stdtime/tzfile.h 192625 2009-05-23 06:31:50Z edwin $ +*/ + +/* +** 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 +*/ + +#ifndef lint +#ifndef NOID +/* +static char tzfilehid[] = "@(#)tzfile.h 8.1"; +*/ +#endif /* !defined NOID */ +#endif /* !defined lint */ + +/* +** Information about time zone files. +*/ + +#ifndef TZDIR +#ifdef UNIFDEF_TZDIR_SYMLINK +#define TZDIR "/var/db/timezone/zoneinfo" /* Time zone object file directory */ +#else /* !UNIFDEF_TZDIR_SYMLINK */ +#define TZDIR "/usr/share/zoneinfo" /* Time zone object file directory */ +#endif /* UNIFDEF_TZDIR_SYMLINK */ +#endif /* !defined TZDIR */ + +#ifndef TZDEFAULT +#ifdef UNIFDEF_MOVE_LOCALTIME +#define TZDEFAULT "/var/db/timezone/localtime" +#else /* !UNIFDEF_MOVE_LOCALTIME */ +#define TZDEFAULT "/etc/localtime" +#endif /* UNIFDEF_MOVE_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' as of 2005 */ + 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 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 +** 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 UTC, if FALSE, +** 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). +*/ + +/* +** 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 1200 +#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. +*/ +#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 + +#define isleap(y) (((y) % 4) == 0 && (((y) % 100) != 0 || ((y) % 400) == 0)) + +/* +** Since everything in isleap is modulo 400 (or a factor of 400), we know that +** isleap(y) == isleap(y % 400) +** and so +** isleap(a + b) == isleap((a + b) % 400) +** or +** isleap(a + b) == isleap(a % 400 + b % 400) +** This is true even if % means modulo rather than Fortran remainder +** (which is allowed by C89 but not C99). +** We use this to avoid addition overflow problems. +*/ + +#define isleap_sum(a, b) isleap((a) % 400 + (b) % 400) + +#endif /* !defined TZFILE_H */ diff --git a/system_cmds/zic.tproj/zic.8 b/system_cmds/zic.tproj/zic.8 new file mode 100644 index 0000000..a84e563 --- /dev/null +++ b/system_cmds/zic.tproj/zic.8 @@ -0,0 +1,468 @@ +.\" $FreeBSD: head/contrib/tzcode/zic/zic.8 214411 2010-10-27 07:14:46Z edwin $ +.Dd June 20, 2004 +.Dt ZIC 8 +.Os +.Sh NAME +.Nm zic +.Nd timezone compiler +.Sh SYNOPSIS +.Nm +.Op Fl -version +.Op Fl Dsv +.Op Fl d Ar directory +.Op Fl g Ar group +.Op Fl L Ar leapsecondfilename +.Op Fl l Ar localtime +.Op Fl m Ar mode +.Op Fl p Ar posixrules +.Op Fl u Ar user +.Op Fl y Ar command +.Op Ar filename ... +.Sh DESCRIPTION +The +.Nm +utility reads text from the file(s) named on the command line +and creates the time conversion information files specified in this input. +If a +.Ar filename +is +.Em - , +the standard input is read. +.Pp +The following options are available: +.Bl -tag -width indent +.It Fl -version +Output version information and exit. +.It Fl D +Do not automatically create directories. +If the input file(s) specify +an output file in a directory which does not already exist, the +default behavior is to attempt to create the directory. +If +.Fl D +is specified, +.Nm +will instead error out immediately. +.It Fl d Ar directory +Create time conversion information files in the named directory rather than +in the standard directory named below. +.It Fl g Ar group +After creating each output file, change its group ownership to the +specified +.Ar group +(which can be either a name or a numeric group ID). +.It Fl L Ar leapsecondfilename +Read leap second information from the file with the given name. +If this option is not used, +no leap second information appears in output files. +.It Fl l Ar timezone +Use the given +.Ar time zone +as local time. +The +.Nm +utility will act as if the input contained a link line of the form +.Pp +.D1 No "Link timezone localtime" +.Pp +(Note that this action has no effect on +.Fx , +since the local time zone is specified in +.Pa /etc/localtime +and not +.Pa /usr/share/zoneinfo/localtime . ) +.It Fl m Ar mode +After creating each output file, change its access mode to +.Ar mode . +Both numeric and alphabetic modes are accepted +(see +.Xr chmod 1 ) . +.It Fl p Ar timezone +Use the given +.Ar "time zone" Ns 's +rules when handling POSIX-format +time zone environment variables. +The +.Nm +utility will act as if the input contained a link line of the form +.Pp +.D1 No "Link timezone posixrules" +.It Fl u Ar user +After creating each output file, change its owner to +.Ar user +(which can be either a name or a numeric user ID). +.It Fl v +Complain if a year that appears in a data file is outside the range +of years representable by +.Xr time 3 +values. +.It Fl s +Limit time values stored in output files to values that are the same +whether they are taken to be signed or unsigned. +You can use this option to generate SVVS-compatible files. +.It Fl y Ar command +Use the given +.Ar command +rather than +.Em yearistype +when checking year types (see below). +.El +.Pp +Input lines are made up of fields. +Fields are separated from one another by any number of white space characters. +Leading and trailing white space on input lines is ignored. +An unquoted sharp character (#) in the input introduces a comment which extends +to the end of the line the sharp character appears on. +White space characters and sharp characters may be enclosed in double quotes +(") if they are to be used as part of a field. +Any line that is blank (after comment stripping) is ignored. +Non-blank lines are expected to be of one of three types: +rule lines, zone lines, and link lines. +.Pp +Names (such as month names) must be in English and are case insensitive. +Abbreviations, if used, must be unambiguous in context. +.Pp +A rule line has the form: +.Dl "Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S" +For example: +.Dl "Rule US 1967 1973 \- Apr lastSun 2:00 1:00 D" +.Pp +The fields that make up a rule line are: +.Bl -tag -width "LETTER/S" -offset indent +.It NAME +Give the (arbitrary) name of the set of rules this rule is part of. +.It FROM +Give the first year in which the rule applies. +Any integer year can be supplied; the Gregorian calendar is assumed. +The word +.Em minimum +(or an abbreviation) means the minimum year representable as an integer. +The word +.Em maximum +(or an abbreviation) means the maximum year representable as an integer. +Rules can describe times that are not representable as time values, +with the unrepresentable times ignored; this allows rules to be portable +among hosts with differing time value types. +.It TO +Give the final year in which the rule applies. +In addition to +.Em minimum +and +.Em maximum +(as above), +the word +.Em only +(or an abbreviation) +may be used to repeat the value of the +.Em FROM +field. +.It TYPE +Give the type of year in which the rule applies. +If +.Em TYPE +is +.Em \- +then the rule applies in all years between +.Em FROM +and +.Em TO +inclusive. +If +.Em TYPE +is something else, then +.Nm +executes the command +.Li yearistype Ar year Ar type +to check the type of a year: +an exit status of zero is taken to mean that the year is of the given type; +an exit status of one is taken to mean that the year is not of the given type. +.It IN +Name the month in which the rule takes effect. +Month names may be abbreviated. +.It ON +Give the day on which the rule takes effect. +Recognized forms include: +.Pp +.Bl -tag -width lastSun -compact -offset indent +.It \&5 +the fifth of the month +.It lastSun +the last Sunday in the month +.It lastMon +the last Monday in the month +.It Sun>=8 +first Sunday on or after the eighth +.It Sun<=25 +last Sunday on or before the 25th +.El +.Pp +Names of days of the week may be abbreviated or spelled out in full. +Note that there must be no spaces within the +.Em ON +field. +.It AT +Give the time of day at which the rule takes effect. +Recognized forms include: +.Pp +.Bl -tag -width "\&1:28:14" -offset indent -compact +.It 2 +time in hours +.It 2:00 +time in hours and minutes +.It 15:00 +24-hour format time (for times after noon) +.It 1:28:14 +time in hours, minutes, and seconds +.El +.Pp +where hour 0 is midnight at the start of the day, +and hour 24 is midnight at the end of the day. +Any of these forms may be followed by the letter +.Sq Li w +if the given time is local +.Dq "wall clock" +time, +.Sq Li s +if the given time is local +.Dq standard +time, or +.Sq Li u +(or +.Sq Li g +or +.Sq Li z ) +if the given time is universal time; +in the absence of an indicator, +wall clock time is assumed. +.It SAVE +Give the amount of time to be added to local standard time when the rule is in +effect. +This field has the same format as the +.Em AT +field +(although, of course, the +.Sq Li w +and +.Sq Li s +suffixes are not used). +.It LETTER/S +Give the +.Dq "variable part" +(for example, the +.Dq S +or +.Dq D +in +.Dq EST +or +.Dq EDT ) +of time zone abbreviations to be used when this rule is in effect. +If this field is +.Em \- , +the variable part is null. +.El +.Pp +A zone line has the form: +.Dl "Zone NAME GMTOFF RULES/SAVE FORMAT [UNTILYEAR [MONTH [DAY [TIME]]]]" +For example: +.Dl "Zone Australia/Adelaide 9:30 Aus CST 1971 Oct 31 2:00" +The fields that make up a zone line are: +.Bl -tag -width indent +.It NAME +The name of the time zone. +This is the name used in creating the time conversion information file for the +zone. +.It GMTOFF +The amount of time to add to UTC to get standard time in this zone. +This field has the same format as the +.Em AT +and +.Em SAVE +fields of rule lines; +begin the field with a minus sign if time must be subtracted from UTC. +.It RULES/SAVE +The name of the rule(s) that apply in the time zone or, +alternately, an amount of time to add to local standard time. +If this field is +.Em \- +then standard time always applies in the time zone. +.It FORMAT +The format for time zone abbreviations in this time zone. +The pair of characters +.Em %s +is used to show where the +.Dq "variable part" +of the time zone abbreviation goes. +Alternately, +a slash (/) +separates standard and daylight abbreviations. +.It UNTILYEAR [MONTH [DAY [TIME]]] +The time at which the UTC offset or the rule(s) change for a location. +It is specified as a year, a month, a day, and a time of day. +If this is specified, +the time zone information is generated from the given UTC offset +and rule change until the time specified. +The month, day, and time of day have the same format as the IN, ON, and AT +fields of a rule; trailing fields can be omitted, and default to the +earliest possible value for the missing fields. +.Pp +The next line must be a +.Dq continuation +line; this has the same form as a zone line except that the +string +.Dq Zone +and the name are omitted, as the continuation line will +place information starting at the time specified as the +.Em until +information in the previous line in the file used by the previous line. +Continuation lines may contain +.Em until +information, just as zone lines do, indicating that the next line is a further +continuation. +.El +.Pp +A link line has the form +.Dl "Link LINK-FROM LINK-TO" +For example: +.Dl "Link Europe/Istanbul Asia/Istanbul" +The +.Em LINK-FROM +field should appear as the +.Em NAME +field in some zone line; +the +.Em LINK-TO +field is used as an alternate name for that zone. +.Pp +Except for continuation lines, +lines may appear in any order in the input. +.Pp +Lines in the file that describes leap seconds have the following form: +.Dl "Leap YEAR MONTH DAY HH:MM:SS CORR R/S" +For example: +.Dl "Leap 1974 Dec 31 23:59:60 + S" +The +.Em YEAR , +.Em MONTH , +.Em DAY , +and +.Em HH:MM:SS +fields tell when the leap second happened. +The +.Em CORR +field +should be +.Dq + +if a second was added +or +.Dq - +if a second was skipped. +.\" There's no need to document the following, since it's impossible for more +.\" than one leap second to be inserted or deleted at a time. +.\" The C Standard is in error in suggesting the possibility. +.\" See Terry J Quinn, The BIPM and the accurate measure of time, +.\" Proc IEEE 79, 7 (July 1991), 894-905. +.\" or +.\" .q ++ +.\" if two seconds were added +.\" or +.\" .q -- +.\" if two seconds were skipped. +The +.Em R/S +field +should be (an abbreviation of) +.Dq Stationary +if the leap second time given by the other fields should be interpreted as UTC +or +(an abbreviation of) +.Dq Rolling +if the leap second time given by the other fields should be interpreted as +local wall clock time. +.Sh "EXTENDED EXAMPLE" +Here is an extended example of +.Nm +input, intended to illustrate many of its features. +.br +.ne 22 +.nf +.in +2m +.ta \w'# Rule\0\0'u +\w'NAME\0\0'u +\w'FROM\0\0'u +\w'1973\0\0'u +\w'TYPE\0\0'u +\w'Apr\0\0'u +\w'lastSun\0\0'u +\w'2:00\0\0'u +\w'SAVE\0\0'u +.sp +# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S +Rule Swiss 1940 only - Nov 2 0:00 1:00 S +Rule Swiss 1940 only - Dec 31 0:00 0 - +Rule Swiss 1941 1942 - May Sun>=1 2:00 1:00 S +Rule Swiss 1941 1942 - Oct Sun>=1 0:00 0 +.sp .5 +Rule EU 1977 1980 - Apr Sun>=1 1:00u 1:00 S +Rule EU 1977 only - Sep lastSun 1:00u 0 - +Rule EU 1978 only - Oct 1 1:00u 0 - +Rule EU 1979 1995 - Sep lastSun 1:00u 0 - +Rule EU 1981 max - Mar lastSun 1:00u 1:00 S +Rule EU 1996 max - Oct lastSun 1:00u 0 - +.sp +.ta \w'# Zone\0\0'u +\w'Europe/Zurich\0\0'u +\w'0:34:08\0\0'u +\w'RULES/SAVE\0\0'u +\w'FORMAT\0\0'u +# Zone NAME GMTOFF RULES FORMAT UNTIL +Zone Europe/Zurich 0:34:08 - LMT 1848 Sep 12 + 0:29:44 - BMT 1894 Jun + 1:00 Swiss CE%sT 1981 + 1:00 EU CE%sT +.sp +Link Europe/Zurich Switzerland +.sp +.in +.fi +In this example, the zone is named Europe/Zurich but it has an alias +as Switzerland. +Zurich was 34 minutes and 8 seconds west of GMT until 1848-09-12 +at 00:00, when the offset changed to 29 minutes and 44 seconds. +After 1894-06-01 at 00:00 Swiss daylight saving rules (defined with +lines beginning with "Rule Swiss") apply, and the GMT offset became +one hour. +From 1981 to the present, EU daylight saving rules have applied, +and the UTC offset has remained at one hour. +.Pp +In 1940, daylight saving time applied from November 2 at 00:00 to +December 31 at 00:00. +In 1941 and 1942, daylight saving time applied from the first Sunday +in May at 02:00 to the first Sunday in October at 00:00. +The pre-1981 EU daylight-saving rules have no effect here, but are +included for completeness. +Since 1981, daylight saving has begun on the last Sunday in March +at 01:00 UTC. +Until 1995 it ended the last Sunday in September at 01:00 UTC, but +this changed to the last Sunday in October starting in 1996. +.Pp +For purposes of display, "LMT" and "BMT" were initially used, +respectively. +Since Swiss rules and later EU rules were applied, the display name +for the timezone has been CET for standard time and CEST for daylight +saving time. +.Sh NOTES +For areas with more than two types of local time, +you may need to use local standard time in the +.Em AT +field of the earliest transition time's rule to ensure that +the earliest transition time recorded in the compiled file is correct. +.Pp +If, for a particular zone, a clock advance caused by the start of +daylight saving coincides with and is equal to a clock retreat +caused by a change in UTC offset, +.Nm +produces a single transition to daylight saving at the new UTC offset +(without any change in wall clock time). +To get separate transitions use multiple zone continuation lines +specifying transition instants using universal time. +.Sh FILES +.Bl -tag -width /usr/share/zoneinfo -compact +.It /usr/share/zoneinfo +standard directory used for created files +.El +.Sh "SEE ALSO" +.Xr ctime 3 , +.Xr tzfile 5 , +.Xr zdump 8 +.\" @(#)zic.8 8.6 +.\" This file is in the public domain, so clarified as of +.\" 2009-05-17 by Arthur David Olson. diff --git a/system_cmds/zic.tproj/zic.c b/system_cmds/zic.tproj/zic.c new file mode 100644 index 0000000..75db5be --- /dev/null +++ b/system_cmds/zic.tproj/zic.c @@ -0,0 +1,2770 @@ +/* +** This file is in the public domain, so clarified as of +** 2006-07-17 by Arthur David Olson. +*/ + +static const char elsieid[] = "@(#)zic.c 8.22"; + +#ifndef lint +static const char rcsid[] = + "$FreeBSD: head/contrib/tzcode/zic/zic.c 214411 2010-10-27 07:14:46Z edwin $"; +#endif /* not lint */ + +#include "private.h" +#include "tzfile.h" +#include <err.h> +#include <locale.h> +#include <sys/stat.h> /* for umask manifest constants */ +#include <sys/types.h> +#include <unistd.h> + +#define ZIC_VERSION '2' + +typedef int_fast64_t zic_t; + +#ifndef ZIC_MAX_ABBR_LEN_WO_WARN +#define ZIC_MAX_ABBR_LEN_WO_WARN 6 +#endif /* !defined ZIC_MAX_ABBR_LEN_WO_WARN */ + +#define MKDIR_UMASK (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH) + +/* +** On some ancient hosts, predicates like `isspace(C)' are defined +** only if isascii(C) || C == EOF. Modern hosts obey the C Standard, +** which says they are defined only if C == ((unsigned char) C) || C == EOF. +** Neither the C Standard nor POSIX require that `isascii' exist. +** For portability, we check both ancient and modern requirements. +** If isascii is not defined, the isascii check succeeds trivially. +*/ +#include "ctype.h" +#ifndef isascii +#define isascii(x) 1 +#endif + +#define OFFSET_STRLEN_MAXIMUM (7 + INT_STRLEN_MAXIMUM(long)) +#define RULE_STRLEN_MAXIMUM 8 /* "Mdd.dd.d" */ + +#define end(cp) (strchr((cp), '\0')) + +struct rule { + const char * r_filename; + int r_linenum; + const char * r_name; + + int r_loyear; /* for example, 1986 */ + int r_hiyear; /* for example, 1986 */ + const char * r_yrtype; + int r_lowasnum; + int r_hiwasnum; + + int r_month; /* 0..11 */ + + int r_dycode; /* see below */ + int r_dayofmonth; + int r_wday; + + long r_tod; /* time from midnight */ + int r_todisstd; /* above is standard time if TRUE */ + /* or wall clock time if FALSE */ + int r_todisgmt; /* above is GMT if TRUE */ + /* or local time if FALSE */ + long r_stdoff; /* offset from standard time */ + const char * r_abbrvar; /* variable part of abbreviation */ + + int r_todo; /* a rule to do (used in outzone) */ + zic_t r_temp; /* used in outzone */ +}; + +/* +** r_dycode r_dayofmonth r_wday +*/ + +#define DC_DOM 0 /* 1..31 */ /* unused */ +#define DC_DOWGEQ 1 /* 1..31 */ /* 0..6 (Sun..Sat) */ +#define DC_DOWLEQ 2 /* 1..31 */ /* 0..6 (Sun..Sat) */ + +struct zone { + const char * z_filename; + int z_linenum; + + const char * z_name; + long z_gmtoff; + const char * z_rule; + const char * z_format; + + long z_stdoff; + + struct rule * z_rules; + int z_nrules; + + struct rule z_untilrule; + zic_t z_untiltime; +}; + +static void addtt(zic_t starttime, int type); +static int addtype(long gmtoff, const char * abbr, int isdst, + int ttisstd, int ttisgmt); +static void leapadd(zic_t t, int positive, int rolling, int count); +static void adjleap(void); +static void associate(void); +static int ciequal(const char * ap, const char * bp); +static void convert(long val, char * buf); +static void convert64(zic_t val, char * buf); +static void dolink(const char * fromfield, const char * tofield); +static void doabbr(char * abbr, const char * format, + const char * letters, int isdst, int doquotes); +static void eat(const char * name, int num); +static void eats(const char * name, int num, + const char * rname, int rnum); +static long eitol(int i); +static void error(const char * message); +static char ** getfields(char * buf); +static long gethms(const char * string, const char * errstrng, + int signable); +static void infile(const char * filename); +static void inleap(char ** fields, int nfields); +static void inlink(char ** fields, int nfields); +static void inrule(char ** fields, int nfields); +static int inzcont(char ** fields, int nfields); +static int inzone(char ** fields, int nfields); +static int inzsub(char ** fields, int nfields, int iscont); +static int is32(zic_t x); +static int itsabbr(const char * abbr, const char * word); +static int itsdir(const char * name); +static int lowerit(int c); +static char * memcheck(char * tocheck); +static int mkdirs(char * filename); +static void newabbr(const char * abbr); +static long oadd(long t1, long t2); +static void outzone(const struct zone * zp, int ntzones); +static void puttzcode(long code, FILE * fp); +static void puttzcode64(zic_t code, FILE * fp); +static int rcomp(const void * leftp, const void * rightp); +static zic_t rpytime(const struct rule * rp, int wantedy); +static void rulesub(struct rule * rp, + const char * loyearp, const char * hiyearp, + const char * typep, const char * monthp, + const char * dayp, const char * timep); +static int stringoffset(char * result, long offset); +static int stringrule(char * result, const struct rule * rp, + long dstoff, long gmtoff); +static void stringzone(char * result, + const struct zone * zp, int ntzones); +static void setboundaries(void); +static void setgroup(gid_t *flag, const char *name); +static void setuser(uid_t *flag, const char *name); +static zic_t tadd(zic_t t1, long t2); +static void usage(FILE *stream, int status); +static void writezone(const char * name, const char * string); +static int yearistype(int year, const char * type); + +static int charcnt; +static int errors; +static const char * filename; +static int leapcnt; +static int leapseen; +static int leapminyear; +static int leapmaxyear; +static int linenum; +static int max_abbrvar_len; +static int max_format_len; +static zic_t max_time; +static int max_year; +static zic_t min_time; +static int min_year; +static zic_t min_time; +static int noise; +static const char * rfilename; +static int rlinenum; +static int timecnt; +static int typecnt; + +/* +** Line codes. +*/ + +#define LC_RULE 0 +#define LC_ZONE 1 +#define LC_LINK 2 +#define LC_LEAP 3 + +/* +** Which fields are which on a Zone line. +*/ + +#define ZF_NAME 1 +#define ZF_GMTOFF 2 +#define ZF_RULE 3 +#define ZF_FORMAT 4 +#define ZF_TILYEAR 5 +#define ZF_TILMONTH 6 +#define ZF_TILDAY 7 +#define ZF_TILTIME 8 +#define ZONE_MINFIELDS 5 +#define ZONE_MAXFIELDS 9 + +/* +** Which fields are which on a Zone continuation line. +*/ + +#define ZFC_GMTOFF 0 +#define ZFC_RULE 1 +#define ZFC_FORMAT 2 +#define ZFC_TILYEAR 3 +#define ZFC_TILMONTH 4 +#define ZFC_TILDAY 5 +#define ZFC_TILTIME 6 +#define ZONEC_MINFIELDS 3 +#define ZONEC_MAXFIELDS 7 + +/* +** Which files are which on a Rule line. +*/ + +#define RF_NAME 1 +#define RF_LOYEAR 2 +#define RF_HIYEAR 3 +#define RF_COMMAND 4 +#define RF_MONTH 5 +#define RF_DAY 6 +#define RF_TOD 7 +#define RF_STDOFF 8 +#define RF_ABBRVAR 9 +#define RULE_FIELDS 10 + +/* +** Which fields are which on a Link line. +*/ + +#define LF_FROM 1 +#define LF_TO 2 +#define LINK_FIELDS 3 + +/* +** Which fields are which on a Leap line. +*/ + +#define LP_YEAR 1 +#define LP_MONTH 2 +#define LP_DAY 3 +#define LP_TIME 4 +#define LP_CORR 5 +#define LP_ROLL 6 +#define LEAP_FIELDS 7 + +/* +** Year synonyms. +*/ + +#define YR_MINIMUM 0 +#define YR_MAXIMUM 1 +#define YR_ONLY 2 + +static struct rule * rules; +static int nrules; /* number of rules */ + +static struct zone * zones; +static int nzones; /* number of zones */ + +struct link { + const char * l_filename; + int l_linenum; + const char * l_from; + const char * l_to; +}; + +static struct link * links; +static int nlinks; + +struct lookup { + const char * l_word; + const int l_value; +}; + +static struct lookup const * byword(const char * string, + const struct lookup * lp); + +static struct lookup const line_codes[] = { + { "Rule", LC_RULE }, + { "Zone", LC_ZONE }, + { "Link", LC_LINK }, + { "Leap", LC_LEAP }, + { NULL, 0} +}; + +static struct lookup const mon_names[] = { + { "January", TM_JANUARY }, + { "February", TM_FEBRUARY }, + { "March", TM_MARCH }, + { "April", TM_APRIL }, + { "May", TM_MAY }, + { "June", TM_JUNE }, + { "July", TM_JULY }, + { "August", TM_AUGUST }, + { "September", TM_SEPTEMBER }, + { "October", TM_OCTOBER }, + { "November", TM_NOVEMBER }, + { "December", TM_DECEMBER }, + { NULL, 0 } +}; + +static struct lookup const wday_names[] = { + { "Sunday", TM_SUNDAY }, + { "Monday", TM_MONDAY }, + { "Tuesday", TM_TUESDAY }, + { "Wednesday", TM_WEDNESDAY }, + { "Thursday", TM_THURSDAY }, + { "Friday", TM_FRIDAY }, + { "Saturday", TM_SATURDAY }, + { NULL, 0 } +}; + +static struct lookup const lasts[] = { + { "last-Sunday", TM_SUNDAY }, + { "last-Monday", TM_MONDAY }, + { "last-Tuesday", TM_TUESDAY }, + { "last-Wednesday", TM_WEDNESDAY }, + { "last-Thursday", TM_THURSDAY }, + { "last-Friday", TM_FRIDAY }, + { "last-Saturday", TM_SATURDAY }, + { NULL, 0 } +}; + +static struct lookup const begin_years[] = { + { "minimum", YR_MINIMUM }, + { "maximum", YR_MAXIMUM }, + { NULL, 0 } +}; + +static struct lookup const end_years[] = { + { "minimum", YR_MINIMUM }, + { "maximum", YR_MAXIMUM }, + { "only", YR_ONLY }, + { NULL, 0 } +}; + +static struct lookup const leap_types[] = { + { "Rolling", TRUE }, + { "Stationary", FALSE }, + { NULL, 0 } +}; + +static const int len_months[2][MONSPERYEAR] = { + { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }, + { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 } +}; + +static const int len_years[2] = { + DAYSPERNYEAR, DAYSPERLYEAR +}; + +static struct attype { + zic_t at; + unsigned char type; +} attypes[TZ_MAX_TIMES]; +static long gmtoffs[TZ_MAX_TYPES]; +static char isdsts[TZ_MAX_TYPES]; +static unsigned char abbrinds[TZ_MAX_TYPES]; +static char ttisstds[TZ_MAX_TYPES]; +static char ttisgmts[TZ_MAX_TYPES]; +static char chars[TZ_MAX_CHARS]; +static zic_t trans[TZ_MAX_LEAPS]; +static long corr[TZ_MAX_LEAPS]; +static char roll[TZ_MAX_LEAPS]; + +/* +** Memory allocation. +*/ + +static char * +memcheck(ptr) +char * const ptr; +{ + if (ptr == NULL) + errx(EXIT_FAILURE, _("memory exhausted")); + return ptr; +} + +#define emalloc(size) memcheck(imalloc(size)) +#define erealloc(ptr, size) memcheck(irealloc((ptr), (size))) +#define ecpyalloc(ptr) memcheck(icpyalloc(ptr)) +#define ecatalloc(oldp, newp) memcheck(icatalloc((oldp), (newp))) + +/* +** Error handling. +*/ + +static void +eats(name, num, rname, rnum) +const char * const name; +const int num; +const char * const rname; +const int rnum; +{ + filename = name; + linenum = num; + rfilename = rname; + rlinenum = rnum; +} + +static void +eat(name, num) +const char * const name; +const int num; +{ + eats(name, num, (char *) NULL, -1); +} + +static void +error(string) +const char * const string; +{ + /* + ** Match the format of "cc" to allow sh users to + ** zic ... 2>&1 | error -t "*" -v + ** on BSD systems. + */ + (void) fprintf(stderr, _("\"%s\", line %d: %s"), + filename, linenum, string); + if (rfilename != NULL) + (void) fprintf(stderr, _(" (rule from \"%s\", line %d)"), + rfilename, rlinenum); + (void) fprintf(stderr, "\n"); + ++errors; +} + +static void +warning(string) +const char * const string; +{ + char * cp; + + cp = ecpyalloc(_("warning: ")); + cp = ecatalloc(cp, string); + error(cp); + ifree(cp); + --errors; +} + +static void +usage(FILE *stream, int status) + { + (void) fprintf(stream, _("usage is zic \ +[ --version ] [--help] [ -v ] [ -l localtime ] [ -p posixrules ] \\\n\ +\t[ -d directory ] [ -L leapseconds ] [ -y yearistype ] [ filename ... ]\n\ +\n\ +Report bugs to tz@elsie.nci.nih.gov.\n")); + exit(status); +} + +static const char * psxrules; +static const char * lcltime; +static const char * directory; +static const char * leapsec; +static const char * yitcommand; +static int Dflag; +static uid_t uflag = (uid_t)-1; +static gid_t gflag = (gid_t)-1; +static mode_t mflag = (S_IRUSR | S_IRGRP | S_IROTH + | S_IWUSR); + +int +main(argc, argv) +int argc; +char * argv[]; +{ + register int i; + register int j; + register int c; + +#ifdef unix + (void) umask(umask(S_IWGRP | S_IWOTH) | (S_IWGRP | S_IWOTH)); +#endif /* defined unix */ +#if HAVE_GETTEXT + (void) setlocale(LC_ALL, ""); +#ifdef TZ_DOMAINDIR + (void) bindtextdomain(TZ_DOMAIN, TZ_DOMAINDIR); +#endif /* defined TEXTDOMAINDIR */ + (void) textdomain(TZ_DOMAIN); +#endif /* HAVE_GETTEXT */ + if (TYPE_BIT(zic_t) < 64) { + (void) fprintf(stderr, "zic: %s\n", + _("wild compilation-time specification of zic_t")); + exit(EXIT_FAILURE); + } + for (i = 1; i < argc; ++i) + if (strcmp(argv[i], "--version") == 0) { + errx(EXIT_SUCCESS, "%s", elsieid); + } else if (strcmp(argv[i], "--help") == 0) { + usage(stdout, EXIT_SUCCESS); + } + while ((c = getopt(argc, argv, "Dd:g:l:m:p:L:u:vsy:")) != -1) + switch (c) { + default: + usage(stderr, EXIT_FAILURE); + case 'D': + Dflag = 1; + break; + case 'd': + if (directory == NULL) + directory = optarg; + else + errx(EXIT_FAILURE, +_("more than one -d option specified")); + break; + case 'g': + setgroup(&gflag, optarg); + break; + case 'l': + if (lcltime == NULL) + lcltime = optarg; + else + errx(EXIT_FAILURE, +_("more than one -l option specified")); + break; + case 'm': + { + void *set = setmode(optarg); + if (set == NULL) + errx(EXIT_FAILURE, +_("invalid file mode")); + mflag = getmode(set, mflag); + free(set); + break; + } + case 'p': + if (psxrules == NULL) + psxrules = optarg; + else + errx(EXIT_FAILURE, +_("more than one -p option specified")); + break; + case 'u': + setuser(&uflag, optarg); + break; + case 'y': + if (yitcommand == NULL) + yitcommand = optarg; + else + errx(EXIT_FAILURE, +_("more than one -y option specified")); + break; + case 'L': + if (leapsec == NULL) + leapsec = optarg; + else + errx(EXIT_FAILURE, +_("more than one -L option specified")); + break; + case 'v': + noise = TRUE; + break; + case 's': + (void) printf("zic: -s ignored\n"); + break; + } + if (optind == argc - 1 && strcmp(argv[optind], "=") == 0) + usage(stderr, EXIT_FAILURE); /* usage message by request */ + if (directory == NULL) + directory = TZDIR; + if (yitcommand == NULL) + yitcommand = "yearistype"; + + setboundaries(); + + if (optind < argc && leapsec != NULL) { + infile(leapsec); + adjleap(); + } + + for (i = optind; i < argc; ++i) + infile(argv[i]); + if (errors) + exit(EXIT_FAILURE); + associate(); + for (i = 0; i < nzones; i = j) { + /* + ** Find the next non-continuation zone entry. + */ + for (j = i + 1; j < nzones && zones[j].z_name == NULL; ++j) + continue; + outzone(&zones[i], j - i); + } + /* + ** Make links. + */ + for (i = 0; i < nlinks; ++i) { + eat(links[i].l_filename, links[i].l_linenum); + dolink(links[i].l_from, links[i].l_to); + if (noise) + for (j = 0; j < nlinks; ++j) + if (strcmp(links[i].l_to, + links[j].l_from) == 0) + warning(_("link to link")); + } + if (lcltime != NULL) { + eat("command line", 1); + dolink(lcltime, TZDEFAULT); + } + if (psxrules != NULL) { + eat("command line", 1); + dolink(psxrules, TZDEFRULES); + } + return (errors == 0) ? EXIT_SUCCESS : EXIT_FAILURE; +} + +static void +dolink(fromfield, tofield) +const char * const fromfield; +const char * const tofield; +{ + register char * fromname; + register char * toname; + + if (fromfield[0] == '/') + fromname = ecpyalloc(fromfield); + else { + fromname = ecpyalloc(directory); + fromname = ecatalloc(fromname, "/"); + fromname = ecatalloc(fromname, fromfield); + } + if (tofield[0] == '/') + toname = ecpyalloc(tofield); + else { + toname = ecpyalloc(directory); + toname = ecatalloc(toname, "/"); + toname = ecatalloc(toname, tofield); + } + /* + ** We get to be careful here since + ** there's a fair chance of root running us. + */ + if (!itsdir(toname)) + (void) remove(toname); + if (link(fromname, toname) != 0) { + int result; + + if (mkdirs(toname) != 0) + exit(EXIT_FAILURE); + + result = link(fromname, toname); +#if HAVE_SYMLINK + if (result != 0 && + access(fromname, F_OK) == 0 && + !itsdir(fromname)) { + const char *s = tofield; + register char * symlinkcontents = NULL; + while ((s = strchr(s+1, '/')) != NULL) + symlinkcontents = + ecatalloc(symlinkcontents, + "../"); + symlinkcontents = + ecatalloc(symlinkcontents, + fromname); + result = + symlink(symlinkcontents, + toname); + if (result == 0) +warning(_("hard link failed, symbolic link used")); + ifree(symlinkcontents); + } +#endif /* HAVE_SYMLINK */ + if (result != 0) { + err(EXIT_FAILURE, _("can't link from %s to %s"), + fromname, toname); + } + } + ifree(fromname); + ifree(toname); +} + +#define TIME_T_BITS_IN_FILE 64 + +static void +setboundaries (void) +{ + register int i; + + min_time = -1; + for (i = 0; i < TIME_T_BITS_IN_FILE - 1; ++i) + min_time *= 2; + max_time = -(min_time + 1); +} + +static int +itsdir(name) +const char * const name; +{ + register char * myname; + register int accres; + + myname = ecpyalloc(name); + myname = ecatalloc(myname, "/."); + accres = access(myname, F_OK); + ifree(myname); + return accres == 0; +} + +/* +** Associate sets of rules with zones. +*/ + +/* +** Sort by rule name. +*/ + +static int +rcomp(cp1, cp2) +const void * cp1; +const void * cp2; +{ + return strcmp(((const struct rule *) cp1)->r_name, + ((const struct rule *) cp2)->r_name); +} + +static void +associate(void) +{ + register struct zone * zp; + register struct rule * rp; + register int base, out; + register int i, j; + + if (nrules != 0) { + (void) qsort((void *) rules, (size_t) nrules, + (size_t) sizeof *rules, rcomp); + for (i = 0; i < nrules - 1; ++i) { + if (strcmp(rules[i].r_name, + rules[i + 1].r_name) != 0) + continue; + if (strcmp(rules[i].r_filename, + rules[i + 1].r_filename) == 0) + continue; + eat(rules[i].r_filename, rules[i].r_linenum); + warning(_("same rule name in multiple files")); + eat(rules[i + 1].r_filename, rules[i + 1].r_linenum); + warning(_("same rule name in multiple files")); + for (j = i + 2; j < nrules; ++j) { + if (strcmp(rules[i].r_name, + rules[j].r_name) != 0) + break; + if (strcmp(rules[i].r_filename, + rules[j].r_filename) == 0) + continue; + if (strcmp(rules[i + 1].r_filename, + rules[j].r_filename) == 0) + continue; + break; + } + i = j - 1; + } + } + for (i = 0; i < nzones; ++i) { + zp = &zones[i]; + zp->z_rules = NULL; + zp->z_nrules = 0; + } + for (base = 0; base < nrules; base = out) { + rp = &rules[base]; + for (out = base + 1; out < nrules; ++out) + if (strcmp(rp->r_name, rules[out].r_name) != 0) + break; + for (i = 0; i < nzones; ++i) { + zp = &zones[i]; + if (strcmp(zp->z_rule, rp->r_name) != 0) + continue; + zp->z_rules = rp; + zp->z_nrules = out - base; + } + } + for (i = 0; i < nzones; ++i) { + zp = &zones[i]; + if (zp->z_nrules == 0) { + /* + ** Maybe we have a local standard time offset. + */ + eat(zp->z_filename, zp->z_linenum); + zp->z_stdoff = gethms(zp->z_rule, _("unruly zone"), + TRUE); + /* + ** Note, though, that if there's no rule, + ** a '%s' in the format is a bad thing. + */ + if (strchr(zp->z_format, '%') != 0) + error(_("%s in ruleless zone")); + } + } + if (errors) + exit(EXIT_FAILURE); +} + +static void +infile(name) +const char * name; +{ + register FILE * fp; + register char ** fields; + register char * cp; + register const struct lookup * lp; + register int nfields; + register int wantcont; + register int num; + char buf[BUFSIZ]; + + if (strcmp(name, "-") == 0) { + name = _("standard input"); + fp = stdin; + } else if ((fp = fopen(name, "r")) == NULL) + err(EXIT_FAILURE, _("can't open %s"), name); + wantcont = FALSE; + for (num = 1; ; ++num) { + eat(name, num); + if (fgets(buf, (int) sizeof buf, fp) != buf) + break; + cp = strchr(buf, '\n'); + if (cp == NULL) { + error(_("line too long")); + exit(EXIT_FAILURE); + } + *cp = '\0'; + fields = getfields(buf); + nfields = 0; + while (fields[nfields] != NULL) { + static char nada; + + if (strcmp(fields[nfields], "-") == 0) + fields[nfields] = &nada; + ++nfields; + } + if (nfields == 0) { + /* nothing to do */ + } else if (wantcont) { + wantcont = inzcont(fields, nfields); + } else { + lp = byword(fields[0], line_codes); + if (lp == NULL) + error(_("input line of unknown type")); + else switch ((int) (lp->l_value)) { + case LC_RULE: + inrule(fields, nfields); + wantcont = FALSE; + break; + case LC_ZONE: + wantcont = inzone(fields, nfields); + break; + case LC_LINK: + inlink(fields, nfields); + wantcont = FALSE; + break; + case LC_LEAP: + if (name != leapsec) + warnx( +_("leap line in non leap seconds file %s"), name); + else inleap(fields, nfields); + wantcont = FALSE; + break; + default: /* "cannot happen" */ + errx(EXIT_FAILURE, +_("panic: invalid l_value %d"), lp->l_value); + } + } + ifree((char *) fields); + } + if (ferror(fp)) + errx(EXIT_FAILURE, _("error reading %s"), filename); + if (fp != stdin && fclose(fp)) + err(EXIT_FAILURE, _("error closing %s"), filename); + if (wantcont) + error(_("expected continuation line not found")); +} + +/* +** Convert a string of one of the forms +** h -h hh:mm -hh:mm hh:mm:ss -hh:mm:ss +** into a number of seconds. +** A null string maps to zero. +** Call error with errstring and return zero on errors. +*/ + +static long +gethms(string, errstring, signable) +const char * string; +const char * const errstring; +const int signable; +{ + long hh; + int mm, ss, sign; + + if (string == NULL || *string == '\0') + return 0; + if (!signable) + sign = 1; + else if (*string == '-') { + sign = -1; + ++string; + } else sign = 1; + if (sscanf(string, scheck(string, "%ld"), &hh) == 1) + mm = ss = 0; + else if (sscanf(string, scheck(string, "%ld:%d"), &hh, &mm) == 2) + ss = 0; + else if (sscanf(string, scheck(string, "%ld:%d:%d"), + &hh, &mm, &ss) != 3) { + error(errstring); + return 0; + } + if (hh < 0 || + mm < 0 || mm >= MINSPERHOUR || + ss < 0 || ss > SECSPERMIN) { + error(errstring); + return 0; + } + if (LONG_MAX / SECSPERHOUR < hh) { + error(_("time overflow")); + return 0; + } + if (noise && hh == HOURSPERDAY && mm == 0 && ss == 0) + warning(_("24:00 not handled by pre-1998 versions of zic")); + if (noise && (hh > HOURSPERDAY || + (hh == HOURSPERDAY && (mm != 0 || ss != 0)))) +warning(_("values over 24 hours not handled by pre-2007 versions of zic")); + return oadd(eitol(sign) * hh * eitol(SECSPERHOUR), + eitol(sign) * (eitol(mm) * eitol(SECSPERMIN) + eitol(ss))); +} + +static void +inrule(fields, nfields) +register char ** const fields; +const int nfields; +{ + static struct rule r; + + if (nfields != RULE_FIELDS) { + error(_("wrong number of fields on Rule line")); + return; + } + if (*fields[RF_NAME] == '\0') { + error(_("nameless rule")); + return; + } + r.r_filename = filename; + r.r_linenum = linenum; + r.r_stdoff = gethms(fields[RF_STDOFF], _("invalid saved time"), TRUE); + rulesub(&r, fields[RF_LOYEAR], fields[RF_HIYEAR], fields[RF_COMMAND], + fields[RF_MONTH], fields[RF_DAY], fields[RF_TOD]); + r.r_name = ecpyalloc(fields[RF_NAME]); + r.r_abbrvar = ecpyalloc(fields[RF_ABBRVAR]); + if (max_abbrvar_len < strlen(r.r_abbrvar)) + max_abbrvar_len = strlen(r.r_abbrvar); + rules = (struct rule *) (void *) erealloc((char *) rules, + (int) ((nrules + 1) * sizeof *rules)); + rules[nrules++] = r; +} + +static int +inzone(fields, nfields) +register char ** const fields; +const int nfields; +{ + register int i; + static char * buf; + + if (nfields < ZONE_MINFIELDS || nfields > ZONE_MAXFIELDS) { + error(_("wrong number of fields on Zone line")); + return FALSE; + } + if (strcmp(fields[ZF_NAME], TZDEFAULT) == 0 && lcltime != NULL) { + buf = erealloc(buf, (int) (132 + strlen(TZDEFAULT))); + (void) sprintf(buf, +_("\"Zone %s\" line and -l option are mutually exclusive"), + TZDEFAULT); + error(buf); + return FALSE; + } + if (strcmp(fields[ZF_NAME], TZDEFRULES) == 0 && psxrules != NULL) { + buf = erealloc(buf, (int) (132 + strlen(TZDEFRULES))); + (void) sprintf(buf, +_("\"Zone %s\" line and -p option are mutually exclusive"), + TZDEFRULES); + error(buf); + return FALSE; + } + for (i = 0; i < nzones; ++i) + if (zones[i].z_name != NULL && + strcmp(zones[i].z_name, fields[ZF_NAME]) == 0) { + buf = erealloc(buf, (int) (132 + + strlen(fields[ZF_NAME]) + + strlen(zones[i].z_filename))); + (void) sprintf(buf, +_("duplicate zone name %s (file \"%s\", line %d)"), + fields[ZF_NAME], + zones[i].z_filename, + zones[i].z_linenum); + error(buf); + return FALSE; + } + return inzsub(fields, nfields, FALSE); +} + +static int +inzcont(fields, nfields) +register char ** const fields; +const int nfields; +{ + if (nfields < ZONEC_MINFIELDS || nfields > ZONEC_MAXFIELDS) { + error(_("wrong number of fields on Zone continuation line")); + return FALSE; + } + return inzsub(fields, nfields, TRUE); +} + +static int +inzsub(fields, nfields, iscont) +register char ** const fields; +const int nfields; +const int iscont; +{ + register char * cp; + static struct zone z; + register int i_gmtoff, i_rule, i_format; + register int i_untilyear, i_untilmonth; + register int i_untilday, i_untiltime; + register int hasuntil; + + if (iscont) { + i_gmtoff = ZFC_GMTOFF; + i_rule = ZFC_RULE; + i_format = ZFC_FORMAT; + i_untilyear = ZFC_TILYEAR; + i_untilmonth = ZFC_TILMONTH; + i_untilday = ZFC_TILDAY; + i_untiltime = ZFC_TILTIME; + z.z_name = NULL; + } else { + i_gmtoff = ZF_GMTOFF; + i_rule = ZF_RULE; + i_format = ZF_FORMAT; + i_untilyear = ZF_TILYEAR; + i_untilmonth = ZF_TILMONTH; + i_untilday = ZF_TILDAY; + i_untiltime = ZF_TILTIME; + z.z_name = ecpyalloc(fields[ZF_NAME]); + } + z.z_filename = filename; + z.z_linenum = linenum; + z.z_gmtoff = gethms(fields[i_gmtoff], _("invalid UTC offset"), TRUE); + if ((cp = strchr(fields[i_format], '%')) != 0) { + if (*++cp != 's' || strchr(cp, '%') != 0) { + error(_("invalid abbreviation format")); + return FALSE; + } + } + z.z_rule = ecpyalloc(fields[i_rule]); + z.z_format = ecpyalloc(fields[i_format]); + if (max_format_len < strlen(z.z_format)) + max_format_len = strlen(z.z_format); + hasuntil = nfields > i_untilyear; + if (hasuntil) { + z.z_untilrule.r_filename = filename; + z.z_untilrule.r_linenum = linenum; + rulesub(&z.z_untilrule, + fields[i_untilyear], + "only", + "", + (nfields > i_untilmonth) ? + fields[i_untilmonth] : "Jan", + (nfields > i_untilday) ? fields[i_untilday] : "1", + (nfields > i_untiltime) ? fields[i_untiltime] : "0"); + z.z_untiltime = rpytime(&z.z_untilrule, + z.z_untilrule.r_loyear); + if (iscont && nzones > 0 && + z.z_untiltime > min_time && + z.z_untiltime < max_time && + zones[nzones - 1].z_untiltime > min_time && + zones[nzones - 1].z_untiltime < max_time && + zones[nzones - 1].z_untiltime >= z.z_untiltime) { + error(_( +"Zone continuation line end time is not after end time of previous line" + )); + return FALSE; + } + } + zones = (struct zone *) (void *) erealloc((char *) zones, + (int) ((nzones + 1) * sizeof *zones)); + zones[nzones++] = z; + /* + ** If there was an UNTIL field on this line, + ** there's more information about the zone on the next line. + */ + return hasuntil; +} + +static void +inleap(fields, nfields) +register char ** const fields; +const int nfields; +{ + register const char * cp; + register const struct lookup * lp; + register int i, j; + int year, month, day; + long dayoff, tod; + zic_t t; + + if (nfields != LEAP_FIELDS) { + error(_("wrong number of fields on Leap line")); + return; + } + dayoff = 0; + cp = fields[LP_YEAR]; + if (sscanf(cp, scheck(cp, "%d"), &year) != 1) { + /* + ** Leapin' Lizards! + */ + error(_("invalid leaping year")); + return; + } + if (!leapseen || leapmaxyear < year) + leapmaxyear = year; + if (!leapseen || leapminyear > year) + leapminyear = year; + leapseen = TRUE; + j = EPOCH_YEAR; + while (j != year) { + if (year > j) { + i = len_years[isleap(j)]; + ++j; + } else { + --j; + i = -len_years[isleap(j)]; + } + dayoff = oadd(dayoff, eitol(i)); + } + if ((lp = byword(fields[LP_MONTH], mon_names)) == NULL) { + error(_("invalid month name")); + return; + } + month = lp->l_value; + j = TM_JANUARY; + while (j != month) { + i = len_months[isleap(year)][j]; + dayoff = oadd(dayoff, eitol(i)); + ++j; + } + cp = fields[LP_DAY]; + if (sscanf(cp, scheck(cp, "%d"), &day) != 1 || + day <= 0 || day > len_months[isleap(year)][month]) { + error(_("invalid day of month")); + return; + } + dayoff = oadd(dayoff, eitol(day - 1)); + if (dayoff < 0 && !TYPE_SIGNED(zic_t)) { + error(_("time before zero")); + return; + } + if (dayoff < min_time / SECSPERDAY) { + error(_("time too small")); + return; + } + if (dayoff > max_time / SECSPERDAY) { + error(_("time too large")); + return; + } + t = (zic_t) dayoff * SECSPERDAY; + tod = gethms(fields[LP_TIME], _("invalid time of day"), FALSE); + cp = fields[LP_CORR]; + { + register int positive; + int count; + + if (strcmp(cp, "") == 0) { /* infile() turns "-" into "" */ + positive = FALSE; + count = 1; + } else if (strcmp(cp, "--") == 0) { + positive = FALSE; + count = 2; + } else if (strcmp(cp, "+") == 0) { + positive = TRUE; + count = 1; + } else if (strcmp(cp, "++") == 0) { + positive = TRUE; + count = 2; + } else { + error(_("illegal CORRECTION field on Leap line")); + return; + } + if ((lp = byword(fields[LP_ROLL], leap_types)) == NULL) { + error(_( + "illegal Rolling/Stationary field on Leap line" + )); + return; + } + leapadd(tadd(t, tod), positive, lp->l_value, count); + } +} + +static void +inlink(fields, nfields) +register char ** const fields; +const int nfields; +{ + struct link l; + + if (nfields != LINK_FIELDS) { + error(_("wrong number of fields on Link line")); + return; + } + if (*fields[LF_FROM] == '\0') { + error(_("blank FROM field on Link line")); + return; + } + if (*fields[LF_TO] == '\0') { + error(_("blank TO field on Link line")); + return; + } + l.l_filename = filename; + l.l_linenum = linenum; + l.l_from = ecpyalloc(fields[LF_FROM]); + l.l_to = ecpyalloc(fields[LF_TO]); + links = (struct link *) (void *) erealloc((char *) links, + (int) ((nlinks + 1) * sizeof *links)); + links[nlinks++] = l; +} + +static void +rulesub(rp, loyearp, hiyearp, typep, monthp, dayp, timep) +register struct rule * const rp; +const char * const loyearp; +const char * const hiyearp; +const char * const typep; +const char * const monthp; +const char * const dayp; +const char * const timep; +{ + register const struct lookup * lp; + register const char * cp; + register char * dp; + register char * ep; + + if ((lp = byword(monthp, mon_names)) == NULL) { + error(_("invalid month name")); + return; + } + rp->r_month = lp->l_value; + rp->r_todisstd = FALSE; + rp->r_todisgmt = FALSE; + dp = ecpyalloc(timep); + if (*dp != '\0') { + ep = dp + strlen(dp) - 1; + switch (lowerit(*ep)) { + case 's': /* Standard */ + rp->r_todisstd = TRUE; + rp->r_todisgmt = FALSE; + *ep = '\0'; + break; + case 'w': /* Wall */ + rp->r_todisstd = FALSE; + rp->r_todisgmt = FALSE; + *ep = '\0'; + break; + case 'g': /* Greenwich */ + case 'u': /* Universal */ + case 'z': /* Zulu */ + rp->r_todisstd = TRUE; + rp->r_todisgmt = TRUE; + *ep = '\0'; + break; + } + } + rp->r_tod = gethms(dp, _("invalid time of day"), FALSE); + ifree(dp); + /* + ** Year work. + */ + cp = loyearp; + lp = byword(cp, begin_years); + rp->r_lowasnum = lp == NULL; + if (!rp->r_lowasnum) switch ((int) lp->l_value) { + case YR_MINIMUM: + rp->r_loyear = INT_MIN; + break; + case YR_MAXIMUM: + rp->r_loyear = INT_MAX; + break; + default: /* "cannot happen" */ + errx(EXIT_FAILURE, + _("panic: invalid l_value %d"), lp->l_value); + } else if (sscanf(cp, scheck(cp, "%d"), &rp->r_loyear) != 1) { + error(_("invalid starting year")); + return; + } + cp = hiyearp; + lp = byword(cp, end_years); + rp->r_hiwasnum = lp == NULL; + if (!rp->r_hiwasnum) switch ((int) lp->l_value) { + case YR_MINIMUM: + rp->r_hiyear = INT_MIN; + break; + case YR_MAXIMUM: + rp->r_hiyear = INT_MAX; + break; + case YR_ONLY: + rp->r_hiyear = rp->r_loyear; + break; + default: /* "cannot happen" */ + errx(EXIT_FAILURE, + _("panic: invalid l_value %d"), lp->l_value); + } else if (sscanf(cp, scheck(cp, "%d"), &rp->r_hiyear) != 1) { + error(_("invalid ending year")); + return; + } + if (rp->r_loyear > rp->r_hiyear) { + error(_("starting year greater than ending year")); + return; + } + if (*typep == '\0') + rp->r_yrtype = NULL; + else { + if (rp->r_loyear == rp->r_hiyear) { + error(_("typed single year")); + return; + } + rp->r_yrtype = ecpyalloc(typep); + } + /* + ** Day work. + ** Accept things such as: + ** 1 + ** last-Sunday + ** Sun<=20 + ** Sun>=7 + */ + dp = ecpyalloc(dayp); + if ((lp = byword(dp, lasts)) != NULL) { + rp->r_dycode = DC_DOWLEQ; + rp->r_wday = lp->l_value; + rp->r_dayofmonth = len_months[1][rp->r_month]; + } else { + if ((ep = strchr(dp, '<')) != 0) + rp->r_dycode = DC_DOWLEQ; + else if ((ep = strchr(dp, '>')) != 0) + rp->r_dycode = DC_DOWGEQ; + else { + ep = dp; + rp->r_dycode = DC_DOM; + } + if (rp->r_dycode != DC_DOM) { + *ep++ = 0; + if (*ep++ != '=') { + error(_("invalid day of month")); + ifree(dp); + return; + } + if ((lp = byword(dp, wday_names)) == NULL) { + error(_("invalid weekday name")); + ifree(dp); + return; + } + rp->r_wday = lp->l_value; + } + if (sscanf(ep, scheck(ep, "%d"), &rp->r_dayofmonth) != 1 || + rp->r_dayofmonth <= 0 || + (rp->r_dayofmonth > len_months[1][rp->r_month])) { + error(_("invalid day of month")); + ifree(dp); + return; + } + } + ifree(dp); +} + +static void +convert(val, buf) +const long val; +char * const buf; +{ + register int i; + register int shift; + + for (i = 0, shift = 24; i < 4; ++i, shift -= 8) + buf[i] = val >> shift; +} + +static void +convert64(val, buf) +const zic_t val; +char * const buf; +{ + register int i; + register int shift; + + for (i = 0, shift = 56; i < 8; ++i, shift -= 8) + buf[i] = val >> shift; +} + +static void +puttzcode(val, fp) +const long val; +FILE * const fp; +{ + char buf[4]; + + convert(val, buf); + (void) fwrite((void *) buf, (size_t) sizeof buf, (size_t) 1, fp); +} + +static void +puttzcode64(val, fp) +const zic_t val; +FILE * const fp; +{ + char buf[8]; + + convert64(val, buf); + (void) fwrite((void *) buf, (size_t) sizeof buf, (size_t) 1, fp); +} + +static int +atcomp(avp, bvp) +const void * avp; +const void * bvp; +{ + const zic_t a = ((const struct attype *) avp)->at; + const zic_t b = ((const struct attype *) bvp)->at; + + return (a < b) ? -1 : (a > b); +} + +static int +is32(x) +const zic_t x; +{ + return INT32_MIN <= x && x <= INT32_MAX; +} + +static void +writezone(name, string) +const char * const name; +const char * const string; +{ + register FILE * fp; + register int i, j; + register int leapcnt32, leapi32; + register int timecnt32, timei32; + register int pass; + static char * fullname; + static const struct tzhead tzh0; + static struct tzhead tzh; + zic_t ats[TZ_MAX_TIMES]; + unsigned char types[TZ_MAX_TIMES]; + + /* + ** Sort. + */ + if (timecnt > 1) + (void) qsort((void *) attypes, (size_t) timecnt, + (size_t) sizeof *attypes, atcomp); + /* + ** Optimize. + */ + { + int fromi; + int toi; + + toi = 0; + fromi = 0; + while (fromi < timecnt && attypes[fromi].at < min_time) + ++fromi; + if (isdsts[0] == 0) + while (fromi < timecnt && attypes[fromi].type == 0) + ++fromi; /* handled by default rule */ + for ( ; fromi < timecnt; ++fromi) { + if (toi != 0 && ((attypes[fromi].at + + gmtoffs[attypes[toi - 1].type]) <= + (attypes[toi - 1].at + gmtoffs[toi == 1 ? 0 + : attypes[toi - 2].type]))) { + attypes[toi - 1].type = + attypes[fromi].type; + continue; + } + if (toi == 0 || + attypes[toi - 1].type != attypes[fromi].type) + attypes[toi++] = attypes[fromi]; + } + timecnt = toi; + } + /* + ** Transfer. + */ + for (i = 0; i < timecnt; ++i) { + ats[i] = attypes[i].at; + types[i] = attypes[i].type; + } + /* + ** Correct for leap seconds. + */ + for (i = 0; i < timecnt; ++i) { + j = leapcnt; + while (--j >= 0) + if (ats[i] > trans[j] - corr[j]) { + ats[i] = tadd(ats[i], corr[j]); + break; + } + } + /* + ** Figure out 32-bit-limited starts and counts. + */ + timecnt32 = timecnt; + timei32 = 0; + leapcnt32 = leapcnt; + leapi32 = 0; + while (timecnt32 > 0 && !is32(ats[timecnt32 - 1])) + --timecnt32; + while (timecnt32 > 0 && !is32(ats[timei32])) { + --timecnt32; + ++timei32; + } + while (leapcnt32 > 0 && !is32(trans[leapcnt32 - 1])) + --leapcnt32; + while (leapcnt32 > 0 && !is32(trans[leapi32])) { + --leapcnt32; + ++leapi32; + } + fullname = erealloc(fullname, + (int) (strlen(directory) + 1 + strlen(name) + 1)); + (void) sprintf(fullname, "%s/%s", directory, name); + + /* + * Remove old file, if any, to snap links. + */ + if (!itsdir(fullname) && remove(fullname) != 0 && errno != ENOENT) + err(EXIT_FAILURE, _("can't remove %s"), fullname); + + if ((fp = fopen(fullname, "wb")) == NULL) { + if (mkdirs(fullname) != 0) + exit(EXIT_FAILURE); + if ((fp = fopen(fullname, "wb")) == NULL) + err(EXIT_FAILURE, _("can't create %s"), fullname); + } + for (pass = 1; pass <= 2; ++pass) { + register int thistimei, thistimecnt; + register int thisleapi, thisleapcnt; + register int thistimelim, thisleaplim; + int writetype[TZ_MAX_TIMES]; + int typemap[TZ_MAX_TYPES]; + register int thistypecnt; + char thischars[TZ_MAX_CHARS]; + char thischarcnt; + int indmap[TZ_MAX_CHARS]; + + if (pass == 1) { + thistimei = timei32; + thistimecnt = timecnt32; + thisleapi = leapi32; + thisleapcnt = leapcnt32; + } else { + thistimei = 0; + thistimecnt = timecnt; + thisleapi = 0; + thisleapcnt = leapcnt; + } + thistimelim = thistimei + thistimecnt; + thisleaplim = thisleapi + thisleapcnt; + for (i = 0; i < typecnt; ++i) + writetype[i] = thistimecnt == timecnt; + if (thistimecnt == 0) { + /* + ** No transition times fall in the current + ** (32- or 64-bit) window. + */ + if (typecnt != 0) + writetype[typecnt - 1] = TRUE; + } else { + for (i = thistimei - 1; i < thistimelim; ++i) + if (i >= 0) + writetype[types[i]] = TRUE; + /* + ** For America/Godthab and Antarctica/Palmer + */ + if (thistimei == 0) + writetype[0] = TRUE; + } +#ifndef LEAVE_SOME_PRE_2011_SYSTEMS_IN_THE_LURCH + /* + ** For some pre-2011 systems: if the last-to-be-written + ** standard (or daylight) type has an offset different from the + ** most recently used offset, + ** append an (unused) copy of the most recently used type + ** (to help get global "altzone" and "timezone" variables + ** set correctly). + */ + { + register int mrudst, mrustd, hidst, histd, type; + + hidst = histd = mrudst = mrustd = -1; + for (i = thistimei; i < thistimelim; ++i) + if (isdsts[types[i]]) + mrudst = types[i]; + else mrustd = types[i]; + for (i = 0; i < typecnt; ++i) + if (writetype[i]) { + if (isdsts[i]) + hidst = i; + else histd = i; + } + if (hidst >= 0 && mrudst >= 0 && hidst != mrudst && + gmtoffs[hidst] != gmtoffs[mrudst]) { + isdsts[mrudst] = -1; + type = addtype(gmtoffs[mrudst], + &chars[abbrinds[mrudst]], + TRUE, + ttisstds[mrudst], + ttisgmts[mrudst]); + isdsts[mrudst] = TRUE; + writetype[type] = TRUE; + } + if (histd >= 0 && mrustd >= 0 && histd != mrustd && + gmtoffs[histd] != gmtoffs[mrustd]) { + isdsts[mrustd] = -1; + type = addtype(gmtoffs[mrustd], + &chars[abbrinds[mrustd]], + FALSE, + ttisstds[mrustd], + ttisgmts[mrustd]); + isdsts[mrustd] = FALSE; + writetype[type] = TRUE; + } + } +#endif /* !defined LEAVE_SOME_PRE_2011_SYSTEMS_IN_THE_LURCH */ + thistypecnt = 0; + for (i = 0; i < typecnt; ++i) + typemap[i] = writetype[i] ? thistypecnt++ : -1; + for (i = 0; i < sizeof indmap / sizeof indmap[0]; ++i) + indmap[i] = -1; + thischarcnt = 0; + for (i = 0; i < typecnt; ++i) { + register char * thisabbr; + + if (!writetype[i]) + continue; + if (indmap[abbrinds[i]] >= 0) + continue; + thisabbr = &chars[abbrinds[i]]; + for (j = 0; j < thischarcnt; ++j) + if (strcmp(&thischars[j], thisabbr) == 0) + break; + if (j == thischarcnt) { + (void) strcpy(&thischars[(int) thischarcnt], + thisabbr); + thischarcnt += strlen(thisabbr) + 1; + } + indmap[abbrinds[i]] = j; + } +#define DO(field) (void) fwrite((void *) tzh.field, \ + (size_t) sizeof tzh.field, (size_t) 1, fp) + tzh = tzh0; + (void) strncpy(tzh.tzh_magic, TZ_MAGIC, sizeof tzh.tzh_magic); + tzh.tzh_version[0] = ZIC_VERSION; + convert(eitol(thistypecnt), tzh.tzh_ttisgmtcnt); + convert(eitol(thistypecnt), tzh.tzh_ttisstdcnt); + convert(eitol(thisleapcnt), tzh.tzh_leapcnt); + convert(eitol(thistimecnt), tzh.tzh_timecnt); + convert(eitol(thistypecnt), tzh.tzh_typecnt); + convert(eitol(thischarcnt), tzh.tzh_charcnt); + DO(tzh_magic); + DO(tzh_version); + DO(tzh_reserved); + DO(tzh_ttisgmtcnt); + DO(tzh_ttisstdcnt); + DO(tzh_leapcnt); + DO(tzh_timecnt); + DO(tzh_typecnt); + DO(tzh_charcnt); +#undef DO + for (i = thistimei; i < thistimelim; ++i) + if (pass == 1) + puttzcode((long) ats[i], fp); + else puttzcode64(ats[i], fp); + for (i = thistimei; i < thistimelim; ++i) { + unsigned char uc; + + uc = typemap[types[i]]; + (void) fwrite((void *) &uc, + (size_t) sizeof uc, + (size_t) 1, + fp); + } + for (i = 0; i < typecnt; ++i) + if (writetype[i]) { + puttzcode(gmtoffs[i], fp); + (void) putc(isdsts[i], fp); + (void) putc((unsigned char) indmap[abbrinds[i]], fp); + } + if (thischarcnt != 0) + (void) fwrite((void *) thischars, + (size_t) sizeof thischars[0], + (size_t) thischarcnt, fp); + for (i = thisleapi; i < thisleaplim; ++i) { + register zic_t todo; + + if (roll[i]) { + if (timecnt == 0 || trans[i] < ats[0]) { + j = 0; + while (isdsts[j]) + if (++j >= typecnt) { + j = 0; + break; + } + } else { + j = 1; + while (j < timecnt && + trans[i] >= ats[j]) + ++j; + j = types[j - 1]; + } + todo = tadd(trans[i], -gmtoffs[j]); + } else todo = trans[i]; + if (pass == 1) + puttzcode((long) todo, fp); + else puttzcode64(todo, fp); + puttzcode(corr[i], fp); + } + for (i = 0; i < typecnt; ++i) + if (writetype[i]) + (void) putc(ttisstds[i], fp); + for (i = 0; i < typecnt; ++i) + if (writetype[i]) + (void) putc(ttisgmts[i], fp); + } + (void) fprintf(fp, "\n%s\n", string); + if (ferror(fp) || fclose(fp)) + errx(EXIT_FAILURE, _("error writing %s"), fullname); + if (chmod(fullname, mflag) < 0) + err(EXIT_FAILURE, _("cannot change mode of %s to %03o"), + fullname, (unsigned)mflag); + if ((uflag != (uid_t)-1 || gflag != (gid_t)-1) + && chown(fullname, uflag, gflag) < 0) + err(EXIT_FAILURE, _("cannot change ownership of %s"), + fullname); +} + +static void +doabbr(abbr, format, letters, isdst, doquotes) +char * const abbr; +const char * const format; +const char * const letters; +const int isdst; +const int doquotes; +{ + register char * cp; + register char * slashp; + register int len; + + slashp = strchr(format, '/'); + if (slashp == NULL) { + if (letters == NULL) + (void) strcpy(abbr, format); + else (void) sprintf(abbr, format, letters); + } else if (isdst) { + (void) strcpy(abbr, slashp + 1); + } else { + if (slashp > format) + (void) strncpy(abbr, format, + (unsigned) (slashp - format)); + abbr[slashp - format] = '\0'; + } + if (!doquotes) + return; + for (cp = abbr; *cp != '\0'; ++cp) + if (strchr("ABCDEFGHIJKLMNOPQRSTUVWXYZ", *cp) == NULL && + strchr("abcdefghijklmnopqrstuvwxyz", *cp) == NULL) + break; + len = strlen(abbr); + if (len > 0 && *cp == '\0') + return; + abbr[len + 2] = '\0'; + abbr[len + 1] = '>'; + for ( ; len > 0; --len) + abbr[len] = abbr[len - 1]; + abbr[0] = '<'; +} + +static void +updateminmax(x) +const int x; +{ + if (min_year > x) + min_year = x; + if (max_year < x) + max_year = x; +} + +static int +stringoffset(result, offset) +char * result; +long offset; +{ + register int hours; + register int minutes; + register int seconds; + + result[0] = '\0'; + if (offset < 0) { + (void) strcpy(result, "-"); + offset = -offset; + } + seconds = offset % SECSPERMIN; + offset /= SECSPERMIN; + minutes = offset % MINSPERHOUR; + offset /= MINSPERHOUR; + hours = offset; + if (hours >= HOURSPERDAY) { + result[0] = '\0'; + return -1; + } + (void) sprintf(end(result), "%d", hours); + if (minutes != 0 || seconds != 0) { + (void) sprintf(end(result), ":%02d", minutes); + if (seconds != 0) + (void) sprintf(end(result), ":%02d", seconds); + } + return 0; +} + +static int +stringrule(result, rp, dstoff, gmtoff) +char * result; +const struct rule * const rp; +const long dstoff; +const long gmtoff; +{ + register long tod; + + result = end(result); + if (rp->r_dycode == DC_DOM) { + register int month, total; + + if (rp->r_dayofmonth == 29 && rp->r_month == TM_FEBRUARY) + return -1; + total = 0; + for (month = 0; month < rp->r_month; ++month) + total += len_months[0][month]; + (void) sprintf(result, "J%d", total + rp->r_dayofmonth); + } else { + register int week; + + if (rp->r_dycode == DC_DOWGEQ) { + week = 1 + rp->r_dayofmonth / DAYSPERWEEK; + if ((week - 1) * DAYSPERWEEK + 1 != rp->r_dayofmonth) + return -1; + } else if (rp->r_dycode == DC_DOWLEQ) { + if (rp->r_dayofmonth == len_months[1][rp->r_month]) + week = 5; + else { + week = 1 + rp->r_dayofmonth / DAYSPERWEEK; + if (week * DAYSPERWEEK - 1 != rp->r_dayofmonth) + return -1; + } + } else return -1; /* "cannot happen" */ + (void) sprintf(result, "M%d.%d.%d", + rp->r_month + 1, week, rp->r_wday); + } + tod = rp->r_tod; + if (rp->r_todisgmt) + tod += gmtoff; + if (rp->r_todisstd && rp->r_stdoff == 0) + tod += dstoff; + if (tod < 0) { + result[0] = '\0'; + return -1; + } + if (tod != 2 * SECSPERMIN * MINSPERHOUR) { + (void) strcat(result, "/"); + if (stringoffset(end(result), tod) != 0) + return -1; + } + return 0; +} + +static void +stringzone(result, zpfirst, zonecount) +char * result; +const struct zone * const zpfirst; +const int zonecount; +{ + register const struct zone * zp; + register struct rule * rp; + register struct rule * stdrp; + register struct rule * dstrp; + register int i; + register const char * abbrvar; + + result[0] = '\0'; + zp = zpfirst + zonecount - 1; + stdrp = dstrp = NULL; + for (i = 0; i < zp->z_nrules; ++i) { + rp = &zp->z_rules[i]; + if (rp->r_hiwasnum || rp->r_hiyear != INT_MAX) + continue; + if (rp->r_yrtype != NULL) + continue; + if (rp->r_stdoff == 0) { + if (stdrp == NULL) + stdrp = rp; + else return; + } else { + if (dstrp == NULL) + dstrp = rp; + else return; + } + } + if (stdrp == NULL && dstrp == NULL) { + /* + ** There are no rules running through "max". + ** Let's find the latest rule. + */ + for (i = 0; i < zp->z_nrules; ++i) { + rp = &zp->z_rules[i]; + if (stdrp == NULL || rp->r_hiyear > stdrp->r_hiyear || + (rp->r_hiyear == stdrp->r_hiyear && + rp->r_month > stdrp->r_month)) + stdrp = rp; + } + if (stdrp != NULL && stdrp->r_stdoff != 0) + return; /* We end up in DST (a POSIX no-no). */ + /* + ** Horrid special case: if year is 2037, + ** presume this is a zone handled on a year-by-year basis; + ** do not try to apply a rule to the zone. + */ + if (stdrp != NULL && stdrp->r_hiyear == 2037) + return; + } + if (stdrp == NULL && (zp->z_nrules != 0 || zp->z_stdoff != 0)) + return; + abbrvar = (stdrp == NULL) ? "" : stdrp->r_abbrvar; + doabbr(result, zp->z_format, abbrvar, FALSE, TRUE); + if (stringoffset(end(result), -zp->z_gmtoff) != 0) { + result[0] = '\0'; + return; + } + if (dstrp == NULL) + return; + doabbr(end(result), zp->z_format, dstrp->r_abbrvar, TRUE, TRUE); + if (dstrp->r_stdoff != SECSPERMIN * MINSPERHOUR) + if (stringoffset(end(result), + -(zp->z_gmtoff + dstrp->r_stdoff)) != 0) { + result[0] = '\0'; + return; + } + (void) strcat(result, ","); + if (stringrule(result, dstrp, dstrp->r_stdoff, zp->z_gmtoff) != 0) { + result[0] = '\0'; + return; + } + (void) strcat(result, ","); + if (stringrule(result, stdrp, dstrp->r_stdoff, zp->z_gmtoff) != 0) { + result[0] = '\0'; + return; + } +} + +static void +outzone(zpfirst, zonecount) +const struct zone * const zpfirst; +const int zonecount; +{ + register const struct zone * zp; + register struct rule * rp; + register int i, j; + register int usestart, useuntil; + register zic_t starttime, untiltime; + register long gmtoff; + register long stdoff; + register int year; + register long startoff; + register int startttisstd; + register int startttisgmt; + register int type; + register char * startbuf; + register char * ab; + register char * envvar; + register int max_abbr_len; + register int max_envvar_len; + + max_abbr_len = 2 + max_format_len + max_abbrvar_len; + max_envvar_len = 2 * max_abbr_len + 5 * 9; + startbuf = emalloc(max_abbr_len + 1); + ab = emalloc(max_abbr_len + 1); + envvar = emalloc(max_envvar_len + 1); + INITIALIZE(untiltime); + INITIALIZE(starttime); + /* + ** Now. . .finally. . .generate some useful data! + */ + timecnt = 0; + typecnt = 0; + charcnt = 0; + /* + ** Thanks to Earl Chew + ** for noting the need to unconditionally initialize startttisstd. + */ + startttisstd = FALSE; + startttisgmt = FALSE; + min_year = max_year = EPOCH_YEAR; + if (leapseen) { + updateminmax(leapminyear); + updateminmax(leapmaxyear + (leapmaxyear < INT_MAX)); + } + for (i = 0; i < zonecount; ++i) { + zp = &zpfirst[i]; + if (i < zonecount - 1) + updateminmax(zp->z_untilrule.r_loyear); + for (j = 0; j < zp->z_nrules; ++j) { + rp = &zp->z_rules[j]; + if (rp->r_lowasnum) + updateminmax(rp->r_loyear); + if (rp->r_hiwasnum) + updateminmax(rp->r_hiyear); + } + } + /* + ** Generate lots of data if a rule can't cover all future times. + */ + stringzone(envvar, zpfirst, zonecount); + if (noise && envvar[0] == '\0') { + register char * wp; + +wp = ecpyalloc(_("no POSIX environment variable for zone")); + wp = ecatalloc(wp, " "); + wp = ecatalloc(wp, zpfirst->z_name); + warning(wp); + ifree(wp); + } + if (envvar[0] == '\0') { + if (min_year >= INT_MIN + YEARSPERREPEAT) + min_year -= YEARSPERREPEAT; + else min_year = INT_MIN; + if (max_year <= INT_MAX - YEARSPERREPEAT) + max_year += YEARSPERREPEAT; + else max_year = INT_MAX; + } + /* + ** For the benefit of older systems, + ** generate data from 1900 through 2037. + */ + if (min_year > 1900) + min_year = 1900; + if (max_year < 2037) + max_year = 2037; + for (i = 0; i < zonecount; ++i) { + /* + ** A guess that may well be corrected later. + */ + stdoff = 0; + zp = &zpfirst[i]; + usestart = i > 0 && (zp - 1)->z_untiltime > min_time; + useuntil = i < (zonecount - 1); + if (useuntil && zp->z_untiltime <= min_time) + continue; + gmtoff = zp->z_gmtoff; + eat(zp->z_filename, zp->z_linenum); + *startbuf = '\0'; + startoff = zp->z_gmtoff; + if (zp->z_nrules == 0) { + stdoff = zp->z_stdoff; + doabbr(startbuf, zp->z_format, + (char *) NULL, stdoff != 0, FALSE); + type = addtype(oadd(zp->z_gmtoff, stdoff), + startbuf, stdoff != 0, startttisstd, + startttisgmt); + if (usestart) { + addtt(starttime, type); + usestart = FALSE; + } else if (stdoff != 0) + addtt(min_time, type); + } else for (year = min_year; year <= max_year; ++year) { + if (useuntil && year > zp->z_untilrule.r_hiyear) + break; + /* + ** Mark which rules to do in the current year. + ** For those to do, calculate rpytime(rp, year); + */ + for (j = 0; j < zp->z_nrules; ++j) { + rp = &zp->z_rules[j]; + eats(zp->z_filename, zp->z_linenum, + rp->r_filename, rp->r_linenum); + rp->r_todo = year >= rp->r_loyear && + year <= rp->r_hiyear && + yearistype(year, rp->r_yrtype); + if (rp->r_todo) + rp->r_temp = rpytime(rp, year); + } + for ( ; ; ) { + register int k; + register zic_t jtime, ktime; + register long offset; + + INITIALIZE(ktime); + if (useuntil) { + /* + ** Turn untiltime into UTC + ** assuming the current gmtoff and + ** stdoff values. + */ + untiltime = zp->z_untiltime; + if (!zp->z_untilrule.r_todisgmt) + untiltime = tadd(untiltime, + -gmtoff); + if (!zp->z_untilrule.r_todisstd) + untiltime = tadd(untiltime, + -stdoff); + } + /* + ** Find the rule (of those to do, if any) + ** that takes effect earliest in the year. + */ + k = -1; + for (j = 0; j < zp->z_nrules; ++j) { + rp = &zp->z_rules[j]; + if (!rp->r_todo) + continue; + eats(zp->z_filename, zp->z_linenum, + rp->r_filename, rp->r_linenum); + offset = rp->r_todisgmt ? 0 : gmtoff; + if (!rp->r_todisstd) + offset = oadd(offset, stdoff); + jtime = rp->r_temp; + if (jtime == min_time || + jtime == max_time) + continue; + jtime = tadd(jtime, -offset); + if (k < 0 || jtime < ktime) { + k = j; + ktime = jtime; + } + } + if (k < 0) + break; /* go on to next year */ + rp = &zp->z_rules[k]; + rp->r_todo = FALSE; + if (useuntil && ktime >= untiltime) + break; + stdoff = rp->r_stdoff; + if (usestart && ktime == starttime) + usestart = FALSE; + if (usestart) { + if (ktime < starttime) { + startoff = oadd(zp->z_gmtoff, + stdoff); + doabbr(startbuf, zp->z_format, + rp->r_abbrvar, + rp->r_stdoff != 0, + FALSE); + continue; + } + if (*startbuf == '\0' && + startoff == oadd(zp->z_gmtoff, + stdoff)) { + doabbr(startbuf, + zp->z_format, + rp->r_abbrvar, + rp->r_stdoff != + 0, + FALSE); + } + } + eats(zp->z_filename, zp->z_linenum, + rp->r_filename, rp->r_linenum); + doabbr(ab, zp->z_format, rp->r_abbrvar, + rp->r_stdoff != 0, FALSE); + offset = oadd(zp->z_gmtoff, rp->r_stdoff); + type = addtype(offset, ab, rp->r_stdoff != 0, + rp->r_todisstd, rp->r_todisgmt); + addtt(ktime, type); + } + } + if (usestart) { + if (*startbuf == '\0' && + zp->z_format != NULL && + strchr(zp->z_format, '%') == NULL && + strchr(zp->z_format, '/') == NULL) + (void) strcpy(startbuf, zp->z_format); + eat(zp->z_filename, zp->z_linenum); + if (*startbuf == '\0') +error(_("can't determine time zone abbreviation to use just after until time")); + else addtt(starttime, + addtype(startoff, startbuf, + startoff != zp->z_gmtoff, + startttisstd, + startttisgmt)); + } + /* + ** Now we may get to set starttime for the next zone line. + */ + if (useuntil) { + startttisstd = zp->z_untilrule.r_todisstd; + startttisgmt = zp->z_untilrule.r_todisgmt; + starttime = zp->z_untiltime; + if (!startttisstd) + starttime = tadd(starttime, -stdoff); + if (!startttisgmt) + starttime = tadd(starttime, -gmtoff); + } + } + writezone(zpfirst->z_name, envvar); + ifree(startbuf); + ifree(ab); + ifree(envvar); +} + +static void +addtt(starttime, type) +const zic_t starttime; +int type; +{ + if (starttime <= min_time || + (timecnt == 1 && attypes[0].at < min_time)) { + gmtoffs[0] = gmtoffs[type]; + isdsts[0] = isdsts[type]; + ttisstds[0] = ttisstds[type]; + ttisgmts[0] = ttisgmts[type]; + if (abbrinds[type] != 0) + (void) strcpy(chars, &chars[abbrinds[type]]); + abbrinds[0] = 0; + charcnt = strlen(chars) + 1; + typecnt = 1; + timecnt = 0; + type = 0; + } + if (timecnt >= TZ_MAX_TIMES) { + error(_("too many transitions?!")); + exit(EXIT_FAILURE); + } + attypes[timecnt].at = starttime; + attypes[timecnt].type = type; + ++timecnt; +} + +static int +addtype(gmtoff, abbr, isdst, ttisstd, ttisgmt) +const long gmtoff; +const char * const abbr; +const int isdst; +const int ttisstd; +const int ttisgmt; +{ + register int i, j; + + if (isdst != TRUE && isdst != FALSE) { + error(_("internal error - addtype called with bad isdst")); + exit(EXIT_FAILURE); + } + if (ttisstd != TRUE && ttisstd != FALSE) { + error(_("internal error - addtype called with bad ttisstd")); + exit(EXIT_FAILURE); + } + if (ttisgmt != TRUE && ttisgmt != FALSE) { + error(_("internal error - addtype called with bad ttisgmt")); + exit(EXIT_FAILURE); + } + /* + ** See if there's already an entry for this zone type. + ** If so, just return its index. + */ + for (i = 0; i < typecnt; ++i) { + if (gmtoff == gmtoffs[i] && isdst == isdsts[i] && + strcmp(abbr, &chars[abbrinds[i]]) == 0 && + ttisstd == ttisstds[i] && + ttisgmt == ttisgmts[i]) + return i; + } + /* + ** There isn't one; add a new one, unless there are already too + ** many. + */ + if (typecnt >= TZ_MAX_TYPES) { + error(_("too many local time types")); + exit(EXIT_FAILURE); + } + if (! (-1L - 2147483647L <= gmtoff && gmtoff <= 2147483647L)) { + error(_("UTC offset out of range")); + exit(EXIT_FAILURE); + } + gmtoffs[i] = gmtoff; + isdsts[i] = isdst; + ttisstds[i] = ttisstd; + ttisgmts[i] = ttisgmt; + + for (j = 0; j < charcnt; ++j) + if (strcmp(&chars[j], abbr) == 0) + break; + if (j == charcnt) + newabbr(abbr); + abbrinds[i] = j; + ++typecnt; + return i; +} + +static void +leapadd(t, positive, rolling, count) +const zic_t t; +const int positive; +const int rolling; +int count; +{ + register int i, j; + + if (leapcnt + (positive ? count : 1) > TZ_MAX_LEAPS) { + error(_("too many leap seconds")); + exit(EXIT_FAILURE); + } + for (i = 0; i < leapcnt; ++i) + if (t <= trans[i]) { + if (t == trans[i]) { + error(_("repeated leap second moment")); + exit(EXIT_FAILURE); + } + break; + } + do { + for (j = leapcnt; j > i; --j) { + trans[j] = trans[j - 1]; + corr[j] = corr[j - 1]; + roll[j] = roll[j - 1]; + } + trans[i] = t; + corr[i] = positive ? 1L : eitol(-count); + roll[i] = rolling; + ++leapcnt; + } while (positive && --count != 0); +} + +static void +adjleap(void) +{ + register int i; + register long last = 0; + + /* + ** propagate leap seconds forward + */ + for (i = 0; i < leapcnt; ++i) { + trans[i] = tadd(trans[i], last); + last = corr[i] += last; + } +} + +static int +yearistype(year, type) +const int year; +const char * const type; +{ + static char * buf; + int result; + + if (type == NULL || *type == '\0') + return TRUE; + buf = erealloc(buf, (int) (132 + strlen(yitcommand) + strlen(type))); + (void) sprintf(buf, "%s %d %s", yitcommand, year, type); + result = system(buf); + if (WIFEXITED(result)) switch (WEXITSTATUS(result)) { + case 0: + return TRUE; + case 1: + return FALSE; + } + error(_("wild result from command execution")); + warnx(_("command was '%s', result was %d"), buf, result); + for ( ; ; ) + exit(EXIT_FAILURE); +} + +static int +lowerit(a) +int a; +{ + a = (unsigned char) a; + return (isascii(a) && isupper(a)) ? tolower(a) : a; +} + +static int +ciequal(ap, bp) /* case-insensitive equality */ +register const char * ap; +register const char * bp; +{ + while (lowerit(*ap) == lowerit(*bp++)) + if (*ap++ == '\0') + return TRUE; + return FALSE; +} + +static int +itsabbr(abbr, word) +register const char * abbr; +register const char * word; +{ + if (lowerit(*abbr) != lowerit(*word)) + return FALSE; + ++word; + while (*++abbr != '\0') + do { + if (*word == '\0') + return FALSE; + } while (lowerit(*word++) != lowerit(*abbr)); + return TRUE; +} + +static const struct lookup * +byword(word, table) +register const char * const word; +register const struct lookup * const table; +{ + register const struct lookup * foundlp; + register const struct lookup * lp; + + if (word == NULL || table == NULL) + return NULL; + /* + ** Look for exact match. + */ + for (lp = table; lp->l_word != NULL; ++lp) + if (ciequal(word, lp->l_word)) + return lp; + /* + ** Look for inexact match. + */ + foundlp = NULL; + for (lp = table; lp->l_word != NULL; ++lp) + if (itsabbr(word, lp->l_word)) { + if (foundlp == NULL) + foundlp = lp; + else return NULL; /* multiple inexact matches */ + } + return foundlp; +} + +static char ** +getfields(cp) +register char * cp; +{ + register char * dp; + register char ** array; + register int nsubs; + + if (cp == NULL) + return NULL; + array = (char **) (void *) + emalloc((int) ((strlen(cp) + 1) * sizeof *array)); + nsubs = 0; + for ( ; ; ) { + while (isascii((unsigned char) *cp) && + isspace((unsigned char) *cp)) + ++cp; + if (*cp == '\0' || *cp == '#') + break; + array[nsubs++] = dp = cp; + do { + if ((*dp = *cp++) != '"') + ++dp; + else while ((*dp = *cp++) != '"') + if (*dp != '\0') + ++dp; + else { + error(_("odd number of quotation marks")); + exit(EXIT_FAILURE); + } + } while (*cp != '\0' && *cp != '#' && + (!isascii(*cp) || !isspace((unsigned char) *cp))); + if (isascii(*cp) && isspace((unsigned char) *cp)) + ++cp; + *dp = '\0'; + } + array[nsubs] = NULL; + return array; +} + +static long +oadd(t1, t2) +const long t1; +const long t2; +{ + register long t; + + t = t1 + t2; + if ((t2 > 0 && t <= t1) || (t2 < 0 && t >= t1)) { + error(_("time overflow")); + exit(EXIT_FAILURE); + } + return t; +} + +static zic_t +tadd(t1, t2) +const zic_t t1; +const long t2; +{ + register zic_t t; + + if (t1 == max_time && t2 > 0) + return max_time; + if (t1 == min_time && t2 < 0) + return min_time; + t = t1 + t2; + if ((t2 > 0 && t <= t1) || (t2 < 0 && t >= t1)) { + error(_("time overflow")); + exit(EXIT_FAILURE); + } + return t; +} + +/* +** Given a rule, and a year, compute the date - in seconds since January 1, +** 1970, 00:00 LOCAL time - in that year that the rule refers to. +*/ + +static zic_t +rpytime(rp, wantedy) +register const struct rule * const rp; +register const int wantedy; +{ + register int y, m, i; + register long dayoff; /* with a nod to Margaret O. */ + register zic_t t; + + if (wantedy == INT_MIN) + return min_time; + if (wantedy == INT_MAX) + return max_time; + dayoff = 0; + m = TM_JANUARY; + y = EPOCH_YEAR; + while (wantedy != y) { + if (wantedy > y) { + i = len_years[isleap(y)]; + ++y; + } else { + --y; + i = -len_years[isleap(y)]; + } + dayoff = oadd(dayoff, eitol(i)); + } + while (m != rp->r_month) { + i = len_months[isleap(y)][m]; + dayoff = oadd(dayoff, eitol(i)); + ++m; + } + i = rp->r_dayofmonth; + if (m == TM_FEBRUARY && i == 29 && !isleap(y)) { + if (rp->r_dycode == DC_DOWLEQ) + --i; + else { + error(_("use of 2/29 in non leap-year")); + exit(EXIT_FAILURE); + } + } + --i; + dayoff = oadd(dayoff, eitol(i)); + if (rp->r_dycode == DC_DOWGEQ || rp->r_dycode == DC_DOWLEQ) { + register long wday; + +#define LDAYSPERWEEK ((long) DAYSPERWEEK) + wday = eitol(EPOCH_WDAY); + /* + ** Don't trust mod of negative numbers. + */ + if (dayoff >= 0) + wday = (wday + dayoff) % LDAYSPERWEEK; + else { + wday -= ((-dayoff) % LDAYSPERWEEK); + if (wday < 0) + wday += LDAYSPERWEEK; + } + while (wday != eitol(rp->r_wday)) + if (rp->r_dycode == DC_DOWGEQ) { + dayoff = oadd(dayoff, (long) 1); + if (++wday >= LDAYSPERWEEK) + wday = 0; + ++i; + } else { + dayoff = oadd(dayoff, (long) -1); + if (--wday < 0) + wday = LDAYSPERWEEK - 1; + --i; + } + if (i < 0 || i >= len_months[isleap(y)][m]) { + if (noise) + warning(_("rule goes past start/end of month--\ +will not work with pre-2004 versions of zic")); + } + } + if (dayoff < min_time / SECSPERDAY) + return min_time; + if (dayoff > max_time / SECSPERDAY) + return max_time; + t = (zic_t) dayoff * SECSPERDAY; + return tadd(t, rp->r_tod); +} + +static void +newabbr(string) +const char * const string; +{ + register int i; + + if (strcmp(string, GRANDPARENTED) != 0) { + register const char * cp; + register char * wp; + + /* + ** Want one to ZIC_MAX_ABBR_LEN_WO_WARN alphabetics + ** optionally followed by a + or - and a number from 1 to 14. + */ + cp = string; + wp = NULL; + while (isascii((unsigned char) *cp) && + isalpha((unsigned char) *cp)) + ++cp; + if (cp - string == 0) +wp = _("time zone abbreviation lacks alphabetic at start"); + if (noise && cp - string > 3) +wp = _("time zone abbreviation has more than 3 alphabetics"); + if (cp - string > ZIC_MAX_ABBR_LEN_WO_WARN) +wp = _("time zone abbreviation has too many alphabetics"); + if (wp == NULL && (*cp == '+' || *cp == '-')) { + ++cp; + if (isascii((unsigned char) *cp) && + isdigit((unsigned char) *cp)) + if (*cp++ == '1' && + *cp >= '0' && *cp <= '4') + ++cp; + } + if (*cp != '\0') +wp = _("time zone abbreviation differs from POSIX standard"); + if (wp != NULL) { + wp = ecpyalloc(wp); + wp = ecatalloc(wp, " ("); + wp = ecatalloc(wp, string); + wp = ecatalloc(wp, ")"); + warning(wp); + ifree(wp); + } + } + i = strlen(string) + 1; + if (charcnt + i > TZ_MAX_CHARS) { + error(_("too many, or too long, time zone abbreviations")); + exit(EXIT_FAILURE); + } + (void) strcpy(&chars[charcnt], string); + charcnt += eitol(i); +} + +static int +mkdirs(argname) +char * argname; +{ + register char * name; + register char * cp; + + if (argname == NULL || *argname == '\0' || Dflag) + return 0; + cp = name = ecpyalloc(argname); + while ((cp = strchr(cp + 1, '/')) != 0) { + *cp = '\0'; +#ifndef unix + /* + ** DOS drive specifier? + */ + if (isalpha((unsigned char) name[0]) && + name[1] == ':' && name[2] == '\0') { + *cp = '/'; + continue; + } +#endif /* !defined unix */ + if (!itsdir(name)) { + /* + ** It doesn't seem to exist, so we try to create it. + ** Creation may fail because of the directory being + ** created by some other multiprocessor, so we get + ** to do extra checking. + */ + if (mkdir(name, MKDIR_UMASK) != 0 + && (errno != EEXIST || !itsdir(name))) { + warn(_("can't create directory %s"), name); + ifree(name); + return -1; + } + } + *cp = '/'; + } + ifree(name); + return 0; +} + +static long +eitol(i) +const int i; +{ + long l; + + l = i; + if ((i < 0 && l >= 0) || (i == 0 && l != 0) || (i > 0 && l <= 0)) + errx(EXIT_FAILURE, _("%d did not sign extend correctly"), i); + return l; +} + +#include <grp.h> +#include <pwd.h> + +static void +setgroup(flag, name) + gid_t *flag; + const char *name; +{ + struct group *gr; + + if (*flag != (gid_t)-1) + errx(EXIT_FAILURE, _("multiple -g flags specified")); + + gr = getgrnam(name); + if (gr == 0) { + char *ep; + unsigned long ul; + + ul = strtoul(name, &ep, 10); + if (ul == (unsigned long)(gid_t)ul && *ep == '\0') { + *flag = ul; + return; + } + errx(EXIT_FAILURE, _("group `%s' not found"), name); + } + *flag = gr->gr_gid; +} + +static void +setuser(flag, name) + uid_t *flag; + const char *name; +{ + struct passwd *pw; + + if (*flag != (gid_t)-1) + errx(EXIT_FAILURE, _("multiple -u flags specified")); + + pw = getpwnam(name); + if (pw == 0) { + char *ep; + unsigned long ul; + + ul = strtoul(name, &ep, 10); + if (ul == (unsigned long)(gid_t)ul && *ep == '\0') { + *flag = ul; + return; + } + errx(EXIT_FAILURE, _("user `%s' not found"), name); + } + *flag = pw->pw_uid; +} + +/* +** UNIX was a registered trademark of The Open Group in 2003. +*/ |