2956 lines
70 KiB
C
2956 lines
70 KiB
C
/*
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** This file is in the public domain, so clarified as of
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** 2006-07-17 by Arthur David Olson.
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*/
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static char elsieid[] = "@(#)zic.c 8.7";
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#include "private.h"
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#include "locale.h"
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#include "tzfile.h"
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#define ZIC_VERSION '2'
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typedef int_fast64_t zic_t;
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#ifndef ZIC_MAX_ABBR_LEN_WO_WARN
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#define ZIC_MAX_ABBR_LEN_WO_WARN 6
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#endif /* !defined ZIC_MAX_ABBR_LEN_WO_WARN */
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#if HAVE_SYS_STAT_H
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#include "sys/stat.h"
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#endif
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#ifdef S_IRUSR
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#define MKDIR_UMASK (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH)
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#else
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#define MKDIR_UMASK 0755
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#endif
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/* Enable extensions and modifications for ICU. */
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#define ICU
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/* Continue executing after link failure. Even if ICU is undefined
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* (for vanilla zic behavior), ICU_LINKS should be defined, since zic
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* appears to fail on the 2003 data the first time through during the
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* linking phase. Running zic twice, with ICU_LINKS defined, causes
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* links to be handled correctly. */
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#define ICU_LINKS
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#ifdef ICU
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#include "tz2icu.h"
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#endif
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/*
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** On some ancient hosts, predicates like `isspace(C)' are defined
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** only if isascii(C) || C == EOF. Modern hosts obey the C Standard,
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** which says they are defined only if C == ((unsigned char) C) || C == EOF.
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** Neither the C Standard nor Posix require that `isascii' exist.
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** For portability, we check both ancient and modern requirements.
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** If isascii is not defined, the isascii check succeeds trivially.
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*/
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#include "ctype.h"
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#ifndef isascii
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#define isascii(x) 1
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#endif
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#define OFFSET_STRLEN_MAXIMUM (7 + INT_STRLEN_MAXIMUM(long))
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#define RULE_STRLEN_MAXIMUM 8 /* "Mdd.dd.d" */
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#define end(cp) (strchr((cp), '\0'))
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struct rule {
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const char * r_filename;
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int r_linenum;
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const char * r_name;
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int r_loyear; /* for example, 1986 */
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int r_hiyear; /* for example, 1986 */
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const char * r_yrtype;
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int r_lowasnum;
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int r_hiwasnum;
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int r_month; /* 0..11 */
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int r_dycode; /* see below */
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int r_dayofmonth;
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int r_wday;
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long r_tod; /* time from midnight */
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int r_todisstd; /* above is standard time if TRUE */
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/* or wall clock time if FALSE */
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int r_todisgmt; /* above is GMT if TRUE */
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/* or local time if FALSE */
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long r_stdoff; /* offset from standard time */
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const char * r_abbrvar; /* variable part of abbreviation */
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int r_todo; /* a rule to do (used in outzone) */
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zic_t r_temp; /* used in outzone */
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};
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/*
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** r_dycode r_dayofmonth r_wday
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*/
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#define DC_DOM 0 /* 1..31 */ /* unused */
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#define DC_DOWGEQ 1 /* 1..31 */ /* 0..6 (Sun..Sat) */
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#define DC_DOWLEQ 2 /* 1..31 */ /* 0..6 (Sun..Sat) */
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struct zone {
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const char * z_filename;
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int z_linenum;
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const char * z_name;
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long z_gmtoff;
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const char * z_rule;
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const char * z_format;
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long z_stdoff;
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struct rule * z_rules;
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int z_nrules;
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struct rule z_untilrule;
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zic_t z_untiltime;
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};
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extern int getopt P((int argc, char * const argv[],
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const char * options));
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extern int link P((const char * fromname, const char * toname));
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extern char * optarg;
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extern int optind;
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static void addtt P((zic_t starttime, int type));
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#ifdef ICU
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static int addtype P((long gmtoff, long rawoff, long dstoff,
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const char * abbr, int isdst,
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int ttisstd, int ttisgmt));
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#else
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static int addtype P((long gmtoff, const char * abbr, int isdst,
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int ttisstd, int ttisgmt));
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#endif
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static void leapadd P((zic_t t, int positive, int rolling, int count));
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static void adjleap P((void));
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static void associate P((void));
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static int ciequal P((const char * ap, const char * bp));
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static void convert P((long val, char * buf));
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static void convert64 P((zic_t val, char * buf));
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static void dolink P((const char * fromfile, const char * tofile));
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static void doabbr P((char * abbr, const char * format,
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const char * letters, int isdst, int doquotes));
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static void eat P((const char * name, int num));
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static void eats P((const char * name, int num,
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const char * rname, int rnum));
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static long eitol P((int i));
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static void error P((const char * message));
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static char ** getfields P((char * buf));
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static long gethms P((const char * string, const char * errstrng,
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int signable));
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static void infile P((const char * filename));
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static void inleap P((char ** fields, int nfields));
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static void inlink P((char ** fields, int nfields));
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static void inrule P((char ** fields, int nfields));
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static int inzcont P((char ** fields, int nfields));
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static int inzone P((char ** fields, int nfields));
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static int inzsub P((char ** fields, int nfields, int iscont));
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static int is32 P((zic_t x));
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static int itsabbr P((const char * abbr, const char * word));
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static int itsdir P((const char * name));
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static int lowerit P((int c));
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static char * memcheck P((char * tocheck));
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static int mkdirs P((char * filename));
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static void newabbr P((const char * abbr));
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static long oadd P((long t1, long t2));
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static void outzone P((const struct zone * zp, int ntzones));
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static void puttzcode P((long code, FILE * fp));
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static void puttzcode64 P((zic_t code, FILE * fp));
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static int rcomp P((const void * leftp, const void * rightp));
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static zic_t rpytime P((const struct rule * rp, int wantedy));
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static void rulesub P((struct rule * rp,
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const char * loyearp, const char * hiyearp,
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const char * typep, const char * monthp,
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const char * dayp, const char * timep));
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static int stringoffset P((char * result, long offset));
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static int stringrule P((char * result, const struct rule * rp,
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long dstoff, long gmtoff));
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static void stringzone P((char * result,
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const struct zone * zp, int ntzones));
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static void setboundaries P((void));
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static zic_t tadd P((zic_t t1, long t2));
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static void usage P((void));
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static void writezone P((const char * name, const char * string));
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static int yearistype P((int year, const char * type));
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#if !HAVE_STRERROR
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static char * strerror P((int));
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#endif /* !HAVE_STRERROR */
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static int charcnt;
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static int errors;
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static const char * filename;
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static int leapcnt;
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static int leapseen;
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static int leapminyear;
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static int leapmaxyear;
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static int linenum;
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static int max_abbrvar_len;
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static int max_format_len;
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static zic_t max_time;
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static int max_year;
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static zic_t min_time;
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static int min_year;
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static int noise;
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static const char * rfilename;
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static int rlinenum;
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static const char * progname;
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static int timecnt;
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static int typecnt;
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/*
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** Line codes.
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*/
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#define LC_RULE 0
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#define LC_ZONE 1
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#define LC_LINK 2
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#define LC_LEAP 3
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/*
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** Which fields are which on a Zone line.
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*/
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#define ZF_NAME 1
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#define ZF_GMTOFF 2
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#define ZF_RULE 3
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#define ZF_FORMAT 4
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#define ZF_TILYEAR 5
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#define ZF_TILMONTH 6
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#define ZF_TILDAY 7
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#define ZF_TILTIME 8
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#define ZONE_MINFIELDS 5
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#define ZONE_MAXFIELDS 9
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/*
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** Which fields are which on a Zone continuation line.
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*/
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#define ZFC_GMTOFF 0
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#define ZFC_RULE 1
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#define ZFC_FORMAT 2
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#define ZFC_TILYEAR 3
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#define ZFC_TILMONTH 4
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#define ZFC_TILDAY 5
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#define ZFC_TILTIME 6
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#define ZONEC_MINFIELDS 3
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#define ZONEC_MAXFIELDS 7
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/*
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** Which files are which on a Rule line.
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*/
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#define RF_NAME 1
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#define RF_LOYEAR 2
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#define RF_HIYEAR 3
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#define RF_COMMAND 4
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#define RF_MONTH 5
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#define RF_DAY 6
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#define RF_TOD 7
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#define RF_STDOFF 8
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#define RF_ABBRVAR 9
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#define RULE_FIELDS 10
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/*
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** Which fields are which on a Link line.
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*/
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#define LF_FROM 1
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#define LF_TO 2
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#define LINK_FIELDS 3
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/*
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** Which fields are which on a Leap line.
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*/
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#define LP_YEAR 1
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#define LP_MONTH 2
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#define LP_DAY 3
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#define LP_TIME 4
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#define LP_CORR 5
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#define LP_ROLL 6
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#define LEAP_FIELDS 7
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/*
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** Year synonyms.
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*/
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#define YR_MINIMUM 0
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#define YR_MAXIMUM 1
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#define YR_ONLY 2
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static struct rule * rules;
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static int nrules; /* number of rules */
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static struct zone * zones;
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static int nzones; /* number of zones */
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struct link {
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const char * l_filename;
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int l_linenum;
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const char * l_from;
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const char * l_to;
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};
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static struct link * links;
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static int nlinks;
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struct lookup {
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const char * l_word;
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const int l_value;
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};
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#ifdef ICU
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/* Indices into rules[] for final rules. They will occur in pairs,
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* with finalRules[i] occurring before finalRules[i+1] in the year.
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* Each zone need only store a start year, a standard offset, and an
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* index into finalRules[]. FinalRules[] are aliases into rules[]. */
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static const struct rule ** finalRules;
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static int finalRulesCount;
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#endif
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static struct lookup const * byword P((const char * string,
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const struct lookup * lp));
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static struct lookup const line_codes[] = {
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{ "Rule", LC_RULE },
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{ "Zone", LC_ZONE },
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{ "Link", LC_LINK },
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{ "Leap", LC_LEAP },
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{ NULL, 0}
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};
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static struct lookup const mon_names[] = {
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{ "January", TM_JANUARY },
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{ "February", TM_FEBRUARY },
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{ "March", TM_MARCH },
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{ "April", TM_APRIL },
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{ "May", TM_MAY },
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{ "June", TM_JUNE },
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{ "July", TM_JULY },
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{ "August", TM_AUGUST },
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{ "September", TM_SEPTEMBER },
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{ "October", TM_OCTOBER },
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{ "November", TM_NOVEMBER },
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{ "December", TM_DECEMBER },
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{ NULL, 0 }
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};
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static struct lookup const wday_names[] = {
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{ "Sunday", TM_SUNDAY },
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{ "Monday", TM_MONDAY },
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{ "Tuesday", TM_TUESDAY },
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{ "Wednesday", TM_WEDNESDAY },
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{ "Thursday", TM_THURSDAY },
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{ "Friday", TM_FRIDAY },
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{ "Saturday", TM_SATURDAY },
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{ NULL, 0 }
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};
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static struct lookup const lasts[] = {
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{ "last-Sunday", TM_SUNDAY },
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{ "last-Monday", TM_MONDAY },
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{ "last-Tuesday", TM_TUESDAY },
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{ "last-Wednesday", TM_WEDNESDAY },
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{ "last-Thursday", TM_THURSDAY },
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{ "last-Friday", TM_FRIDAY },
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{ "last-Saturday", TM_SATURDAY },
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{ NULL, 0 }
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};
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static struct lookup const begin_years[] = {
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{ "minimum", YR_MINIMUM },
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{ "maximum", YR_MAXIMUM },
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{ NULL, 0 }
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};
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static struct lookup const end_years[] = {
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{ "minimum", YR_MINIMUM },
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{ "maximum", YR_MAXIMUM },
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{ "only", YR_ONLY },
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{ NULL, 0 }
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};
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static struct lookup const leap_types[] = {
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{ "Rolling", TRUE },
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{ "Stationary", FALSE },
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{ NULL, 0 }
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};
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static const int len_months[2][MONSPERYEAR] = {
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{ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
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{ 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
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};
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static const int len_years[2] = {
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DAYSPERNYEAR, DAYSPERLYEAR
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};
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static struct attype {
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zic_t at;
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unsigned char type;
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} attypes[TZ_MAX_TIMES];
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static long gmtoffs[TZ_MAX_TYPES];
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#ifdef ICU
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/* gmtoffs[i] = rawoffs[i] + dstoffs[i] */
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static long rawoffs[TZ_MAX_TYPES];
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static long dstoffs[TZ_MAX_TYPES];
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#endif
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static char isdsts[TZ_MAX_TYPES];
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static unsigned char abbrinds[TZ_MAX_TYPES];
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static char ttisstds[TZ_MAX_TYPES];
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static char ttisgmts[TZ_MAX_TYPES];
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static char chars[TZ_MAX_CHARS];
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static zic_t trans[TZ_MAX_LEAPS];
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static long corr[TZ_MAX_LEAPS];
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static char roll[TZ_MAX_LEAPS];
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/*
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** Memory allocation.
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*/
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static char *
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memcheck(ptr)
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char * const ptr;
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{
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if (ptr == NULL) {
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const char *e = strerror(errno);
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(void) fprintf(stderr, _("%s: Memory exhausted: %s\n"),
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progname, e);
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exit(EXIT_FAILURE);
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}
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return ptr;
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}
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#define emalloc(size) memcheck(imalloc(size))
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#define erealloc(ptr, size) memcheck(irealloc((ptr), (size)))
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#define ecpyalloc(ptr) memcheck(icpyalloc(ptr))
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#define ecatalloc(oldp, newp) memcheck(icatalloc((oldp), (newp)))
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/*
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** Error handling.
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*/
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#if !HAVE_STRERROR
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static char *
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strerror(errnum)
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int errnum;
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{
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extern char * sys_errlist[];
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extern int sys_nerr;
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return (errnum > 0 && errnum <= sys_nerr) ?
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sys_errlist[errnum] : _("Unknown system error");
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}
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#endif /* !HAVE_STRERROR */
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static void
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eats(name, num, rname, rnum)
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const char * const name;
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const int num;
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const char * const rname;
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const int rnum;
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{
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filename = name;
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linenum = num;
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rfilename = rname;
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rlinenum = rnum;
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}
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static void
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eat(name, num)
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const char * const name;
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const int num;
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{
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eats(name, num, (char *) NULL, -1);
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}
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|
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static void
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error(string)
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const char * const string;
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{
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/*
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|
** Match the format of "cc" to allow sh users to
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** zic ... 2>&1 | error -t "*" -v
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** on BSD systems.
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*/
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(void) fprintf(stderr, _("\"%s\", line %d: %s"),
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filename, linenum, string);
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if (rfilename != NULL)
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(void) fprintf(stderr, _(" (rule from \"%s\", line %d)"),
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rfilename, rlinenum);
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(void) fprintf(stderr, "\n");
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++errors;
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}
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|
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static void
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warning(string)
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const char * const string;
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{
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char * cp;
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cp = ecpyalloc(_("warning: "));
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cp = ecatalloc(cp, string);
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error(cp);
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ifree(cp);
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--errors;
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}
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|
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static void
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usage P((void))
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{
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(void) fprintf(stderr, _("%s: usage is %s \
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[ --version ] [ -v ] [ -l localtime ] [ -p posixrules ] \\\n\
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|
\t[ -d directory ] [ -L leapseconds ] [ -y yearistype ] [ filename ... ]\n"),
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progname, progname);
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exit(EXIT_FAILURE);
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}
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|
|
#ifdef ICU
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|
|
/* File into which we will write supplemental ICU data. */
|
|
static FILE * icuFile;
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|
|
void emit_icu_zone(FILE* f, const char* zoneName, int zoneOffset,
|
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const struct rule* rule,
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int ruleIndex, int startYear) {
|
|
/* machine-readable section */
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fprintf(f, "zone %s %d %d %s", zoneName, zoneOffset, startYear, rule->r_name);
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|
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/* human-readable section */
|
|
fprintf(f, " # zone %s, offset %d, year >= %d, rule %s (%d)\n",
|
|
zoneName, zoneOffset, startYear,
|
|
rule->r_name, ruleIndex);
|
|
}
|
|
|
|
void emit_icu_link(FILE* f, const char* from, const char* to) {
|
|
/* machine-readable section */
|
|
fprintf(f, "link %s %s\n", from, to);
|
|
}
|
|
|
|
static const char* DYCODE[] = {"DOM", "DOWGEQ", "DOWLEQ"};
|
|
|
|
void emit_icu_rule(FILE* f, const struct rule* r, int ruleIndex) {
|
|
if (r->r_yrtype != NULL) {
|
|
warning("year types not supported by ICU");
|
|
fprintf(stderr, "rule %s, file %s, line %d\n",
|
|
r->r_name, r->r_filename, r->r_linenum);
|
|
}
|
|
|
|
/* machine-readable section */
|
|
fprintf(f, "rule %s %s %d %d %d %d %d %d %d",
|
|
r->r_name, DYCODE[r->r_dycode],
|
|
r->r_month, r->r_dayofmonth,
|
|
(r->r_dycode == DC_DOM ? -1 : r->r_wday),
|
|
r->r_tod, r->r_todisstd, r->r_todisgmt, r->r_stdoff
|
|
);
|
|
|
|
/* human-readable section */
|
|
fprintf(f, " # %d: %s, file %s, line %d",
|
|
ruleIndex, r->r_name, r->r_filename, r->r_linenum);
|
|
fprintf(f, ", mode %s", DYCODE[r->r_dycode]);
|
|
fprintf(f, ", %s, dom %d", mon_names[r->r_month].l_word, r->r_dayofmonth);
|
|
if (r->r_dycode != DC_DOM) {
|
|
fprintf(f, ", %s", wday_names[r->r_wday].l_word);
|
|
}
|
|
fprintf(f, ", time %d", r->r_tod);
|
|
fprintf(f, ", isstd %d", r->r_todisstd);
|
|
fprintf(f, ", isgmt %d", r->r_todisgmt);
|
|
fprintf(f, ", offset %ld", r->r_stdoff);
|
|
fprintf(f, "\n");
|
|
}
|
|
|
|
#endif
|
|
|
|
static const char * psxrules;
|
|
static const char * lcltime;
|
|
static const char * directory;
|
|
static const char * leapsec;
|
|
static const char * yitcommand;
|
|
|
|
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 */
|
|
progname = argv[0];
|
|
if (TYPE_BIT(zic_t) < 64) {
|
|
(void) fprintf(stderr, "%s: %s\n", progname,
|
|
_("wild compilation-time specification of zic_t"));
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
for (i = 1; i < argc; ++i)
|
|
if (strcmp(argv[i], "--version") == 0) {
|
|
(void) printf("%s\n", elsieid);
|
|
exit(EXIT_SUCCESS);
|
|
}
|
|
while ((c = getopt(argc, argv, "d:l:p:L:vsy:")) != EOF && c != -1)
|
|
switch (c) {
|
|
default:
|
|
usage();
|
|
case 'd':
|
|
if (directory == NULL)
|
|
directory = optarg;
|
|
else {
|
|
(void) fprintf(stderr,
|
|
_("%s: More than one -d option specified\n"),
|
|
progname);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
break;
|
|
case 'l':
|
|
if (lcltime == NULL)
|
|
lcltime = optarg;
|
|
else {
|
|
(void) fprintf(stderr,
|
|
_("%s: More than one -l option specified\n"),
|
|
progname);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
break;
|
|
case 'p':
|
|
if (psxrules == NULL)
|
|
psxrules = optarg;
|
|
else {
|
|
(void) fprintf(stderr,
|
|
_("%s: More than one -p option specified\n"),
|
|
progname);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
break;
|
|
case 'y':
|
|
if (yitcommand == NULL)
|
|
yitcommand = optarg;
|
|
else {
|
|
(void) fprintf(stderr,
|
|
_("%s: More than one -y option specified\n"),
|
|
progname);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
break;
|
|
case 'L':
|
|
if (leapsec == NULL)
|
|
leapsec = optarg;
|
|
else {
|
|
(void) fprintf(stderr,
|
|
_("%s: More than one -L option specified\n"),
|
|
progname);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
break;
|
|
case 'v':
|
|
noise = TRUE;
|
|
break;
|
|
case 's':
|
|
(void) printf("%s: -s ignored\n", progname);
|
|
break;
|
|
}
|
|
if (optind == argc - 1 && strcmp(argv[optind], "=") == 0)
|
|
usage(); /* usage message by request */
|
|
if (directory == NULL)
|
|
directory = TZDIR;
|
|
if (yitcommand == NULL)
|
|
yitcommand = "yearistype";
|
|
|
|
setboundaries();
|
|
|
|
if (optind < argc && leapsec != NULL) {
|
|
infile(leapsec);
|
|
adjleap();
|
|
}
|
|
|
|
#ifdef ICU
|
|
if ((icuFile = fopen(ICU_ZONE_FILE, "w")) == NULL) {
|
|
const char *e = strerror(errno);
|
|
(void) fprintf(stderr, _("%s: Can't open %s: %s\n"),
|
|
progname, ICU_ZONE_FILE, e);
|
|
(void) exit(EXIT_FAILURE);
|
|
}
|
|
#endif
|
|
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);
|
|
#ifdef ICU
|
|
emit_icu_link(icuFile, links[i].l_from, links[i].l_to);
|
|
#endif
|
|
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);
|
|
}
|
|
#ifdef ICU
|
|
for (i=0; i<finalRulesCount; ++i) {
|
|
emit_icu_rule(icuFile, finalRules[i], i);
|
|
}
|
|
#endif /*ICU*/
|
|
return (errors == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
|
|
}
|
|
|
|
static void
|
|
dolink(fromfile, tofile)
|
|
const char * const fromfile;
|
|
const char * const tofile;
|
|
{
|
|
register char * fromname;
|
|
register char * toname;
|
|
|
|
if (fromfile[0] == '/')
|
|
fromname = ecpyalloc(fromfile);
|
|
else {
|
|
fromname = ecpyalloc(directory);
|
|
fromname = ecatalloc(fromname, "/");
|
|
fromname = ecatalloc(fromname, fromfile);
|
|
}
|
|
if (tofile[0] == '/')
|
|
toname = ecpyalloc(tofile);
|
|
else {
|
|
toname = ecpyalloc(directory);
|
|
toname = ecatalloc(toname, "/");
|
|
toname = ecatalloc(toname, tofile);
|
|
}
|
|
/*
|
|
** 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 = tofile;
|
|
register char * symlinkcontents = NULL;
|
|
|
|
while ((s = strchr(s+1, '/')) != NULL)
|
|
symlinkcontents =
|
|
ecatalloc(symlinkcontents,
|
|
"../");
|
|
symlinkcontents =
|
|
ecatalloc(symlinkcontents,
|
|
fromfile);
|
|
result = symlink(symlinkcontents,
|
|
toname);
|
|
if (result == 0)
|
|
warning(_("hard link failed, symbolic link used"));
|
|
ifree(symlinkcontents);
|
|
}
|
|
#endif /* HAVE_SYMLINK */
|
|
if (result != 0) {
|
|
const char *e = strerror(errno);
|
|
|
|
(void) fprintf(stderr,
|
|
_("%s: Can't link from %s to %s: %s\n"),
|
|
progname, fromname, toname, e);
|
|
#ifndef ICU_LINKS
|
|
exit(EXIT_FAILURE);
|
|
#endif
|
|
}
|
|
}
|
|
ifree(fromname);
|
|
ifree(toname);
|
|
}
|
|
|
|
#define TIME_T_BITS_IN_FILE 64
|
|
|
|
static void
|
|
setboundaries P((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 P((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) {
|
|
const char *e = strerror(errno);
|
|
|
|
(void) fprintf(stderr, _("%s: Can't open %s: %s\n"),
|
|
progname, name, e);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
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)
|
|
(void) fprintf(stderr,
|
|
_("%s: Leap line in non leap seconds file %s\n"),
|
|
progname, name);
|
|
else inleap(fields, nfields);
|
|
wantcont = FALSE;
|
|
break;
|
|
default: /* "cannot happen" */
|
|
(void) fprintf(stderr,
|
|
_("%s: panic: Invalid l_value %d\n"),
|
|
progname, lp->l_value);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
ifree((char *) fields);
|
|
}
|
|
if (ferror(fp)) {
|
|
(void) fprintf(stderr, _("%s: Error reading %s\n"),
|
|
progname, filename);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
if (fp != stdin && fclose(fp)) {
|
|
const char *e = strerror(errno);
|
|
|
|
(void) fprintf(stderr, _("%s: Error closing %s: %s\n"),
|
|
progname, filename, e);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
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;
|
|
{
|
|
int hh, 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, "%d"), &hh) == 1)
|
|
mm = ss = 0;
|
|
else if (sscanf(string, scheck(string, "%d:%d"), &hh, &mm) == 2)
|
|
ss = 0;
|
|
else if (sscanf(string, scheck(string, "%d:%d:%d"),
|
|
&hh, &mm, &ss) != 3) {
|
|
error(errstring);
|
|
return 0;
|
|
}
|
|
if ((hh < 0 || hh >= HOURSPERDAY ||
|
|
mm < 0 || mm >= MINSPERHOUR ||
|
|
ss < 0 || ss > SECSPERMIN) &&
|
|
!(hh == HOURSPERDAY && mm == 0 && ss == 0)) {
|
|
error(errstring);
|
|
return 0;
|
|
}
|
|
if (noise && hh == HOURSPERDAY)
|
|
warning(_("24:00 not handled by pre-1998 versions of zic"));
|
|
return eitol(sign) *
|
|
(eitol(hh * MINSPERHOUR + 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" */
|
|
(void) fprintf(stderr,
|
|
_("%s: panic: Invalid l_value %d\n"),
|
|
progname, lp->l_value);
|
|
exit(EXIT_FAILURE);
|
|
} 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" */
|
|
(void) fprintf(stderr,
|
|
_("%s: panic: Invalid l_value %d\n"),
|
|
progname, lp->l_value);
|
|
exit(EXIT_FAILURE);
|
|
} 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) {
|
|
const char *e = strerror(errno);
|
|
|
|
(void) fprintf(stderr, _("%s: Can't remove %s: %s\n"),
|
|
progname, fullname, e);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
if ((fp = fopen(fullname, "wb")) == NULL) {
|
|
if (mkdirs(fullname) != 0)
|
|
exit(EXIT_FAILURE);
|
|
if ((fp = fopen(fullname, "wb")) == NULL) {
|
|
const char *e = strerror(errno);
|
|
|
|
(void) fprintf(stderr, _("%s: Can't create %s: %s\n"),
|
|
progname, fullname, e);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
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;
|
|
}
|
|
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;
|
|
#ifdef ICU
|
|
* (ICUZoneinfoVersion*) &tzh.tzh_reserved = TZ_ICU_VERSION;
|
|
(void) strncpy(tzh.tzh_magic, TZ_ICU_MAGIC, sizeof tzh.tzh_magic);
|
|
#else
|
|
(void) strncpy(tzh.tzh_magic, TZ_MAGIC, sizeof tzh.tzh_magic);
|
|
#endif
|
|
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]) {
|
|
#ifdef ICU
|
|
puttzcode((long) rawoffs[i], fp);
|
|
puttzcode((long) dstoffs[i], fp);
|
|
#else
|
|
puttzcode((long) gmtoffs[i], fp);
|
|
#endif
|
|
(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)) {
|
|
(void) fprintf(stderr, _("%s: Error writing %s\n"),
|
|
progname, fullname);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
|
|
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)
|
|
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;
|
|
}
|
|
}
|
|
|
|
#ifdef ICU
|
|
|
|
int add_icu_final_rules(const struct rule* r1, const struct rule* r2) {
|
|
int i;
|
|
|
|
for (i=0; i<finalRulesCount; ++i) { /* i+=2 should work too */
|
|
if (r1==finalRules[i]) return i; /* [sic] pointer comparison */
|
|
}
|
|
|
|
finalRules = (const struct rule**) (void*) erealloc((char *) finalRules,
|
|
(finalRulesCount + 2) * sizeof(*finalRules));
|
|
finalRules[finalRulesCount++] = r1;
|
|
finalRules[finalRulesCount++] = r2;
|
|
return finalRulesCount - 2;
|
|
}
|
|
|
|
#endif /*ICU*/
|
|
|
|
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;
|
|
#ifdef ICU
|
|
int finalRuleYear, finalRuleIndex;
|
|
const struct rule* finalRule1;
|
|
const struct rule* finalRule2;
|
|
#endif
|
|
|
|
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);
|
|
}
|
|
for (i = 0; i < zonecount; ++i) {
|
|
zp = &zpfirst[i];
|
|
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 through 2037.
|
|
*/
|
|
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;
|
|
#ifdef ICU
|
|
finalRuleYear = finalRuleIndex = -1;
|
|
finalRule1 = finalRule2 = NULL;
|
|
if (i == (zonecount - 1)) { /* !useuntil */
|
|
/* Look for exactly 2 rules that end at 'max' and
|
|
* note them. Determine max(r_loyear) for the 2 of
|
|
* them. */
|
|
for (j=0; j<zp->z_nrules; ++j) {
|
|
rp = &zp->z_rules[j];
|
|
if (rp->r_hiyear == INT_MAX) {
|
|
if (finalRule1 == NULL) {
|
|
finalRule1 = rp;
|
|
finalRuleYear = rp->r_loyear;
|
|
} else if (finalRule2 == NULL) {
|
|
finalRule2 = rp;
|
|
if (rp->r_loyear > finalRuleYear) {
|
|
finalRuleYear = rp->r_loyear;
|
|
}
|
|
} else {
|
|
error("more than two max rules found (ICU)");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
}
|
|
if (finalRule1 != NULL && finalRule2 == NULL) {
|
|
error("only one max rule found (ICU)");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
if (finalRule1 != NULL) {
|
|
/* Swap if necessary so finalRule1 occurs before
|
|
* finalRule2 */
|
|
if (finalRule1->r_month > finalRule2->r_month) {
|
|
const struct rule* t = finalRule1;
|
|
finalRule1 = finalRule2;
|
|
finalRule2 = t;
|
|
}
|
|
/* Add final rule to our list */
|
|
finalRuleIndex = add_icu_final_rules(finalRule1, finalRule2);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
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),
|
|
#ifdef ICU
|
|
zp->z_gmtoff, stdoff,
|
|
#endif
|
|
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);
|
|
}
|
|
}
|
|
#ifdef ICU
|
|
if (year >= finalRuleYear && rp == finalRule1) {
|
|
/* We want to shift final year 1 year after
|
|
* the actual final rule takes effect (year + 1),
|
|
* because the previous type is valid until the first
|
|
* transition defined by the final rule. Otherwise
|
|
* we may see unexpected offset shift at the
|
|
* begining of the year when the final rule takes
|
|
* effect. */
|
|
emit_icu_zone(icuFile,
|
|
zpfirst->z_name, zp->z_gmtoff,
|
|
rp, finalRuleIndex, year + 1);
|
|
/* only emit this for the first year */
|
|
finalRule1 = NULL;
|
|
}
|
|
#endif
|
|
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);
|
|
#ifdef ICU
|
|
type = addtype(offset, zp->z_gmtoff, rp->r_stdoff,
|
|
ab, rp->r_stdoff != 0,
|
|
rp->r_todisstd, rp->r_todisgmt);
|
|
#else
|
|
type = addtype(offset, ab, rp->r_stdoff != 0,
|
|
rp->r_todisstd, rp->r_todisgmt);
|
|
#endif
|
|
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,
|
|
#ifdef ICU
|
|
addtype(startoff,
|
|
zp->z_gmtoff, startoff - zp->z_gmtoff,
|
|
startbuf,
|
|
startoff != zp->z_gmtoff,
|
|
startttisstd,
|
|
startttisgmt));
|
|
#else
|
|
addtype(startoff, startbuf,
|
|
startoff != zp->z_gmtoff,
|
|
startttisstd,
|
|
startttisgmt));
|
|
#endif
|
|
}
|
|
/*
|
|
** 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];
|
|
#ifdef ICU
|
|
rawoffs[0] = rawoffs[type];
|
|
dstoffs[0] = dstoffs[type];
|
|
#endif
|
|
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
|
|
#ifdef ICU
|
|
addtype(gmtoff, rawoff, dstoff, abbr, isdst, ttisstd, ttisgmt)
|
|
const long gmtoff;
|
|
const long rawoff;
|
|
const long dstoff;
|
|
#else
|
|
addtype(gmtoff, abbr, isdst, ttisstd, ttisgmt)
|
|
const long gmtoff;
|
|
#endif
|
|
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);
|
|
}
|
|
#ifdef ICU
|
|
if (isdst != (dstoff != 0)) {
|
|
error(_("internal error - addtype called with bad isdst/dstoff"));
|
|
(void) exit(EXIT_FAILURE);
|
|
}
|
|
if (gmtoff != (rawoff + dstoff)) {
|
|
error(_("internal error - addtype called with bad gmt/raw/dstoff"));
|
|
(void) exit(EXIT_FAILURE);
|
|
}
|
|
#endif
|
|
/*
|
|
** 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] &&
|
|
#ifdef ICU
|
|
rawoff == rawoffs[i] && dstoff == dstoffs[i] &&
|
|
#endif
|
|
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);
|
|
}
|
|
gmtoffs[i] = gmtoff;
|
|
#ifdef ICU
|
|
rawoffs[i] = rawoff;
|
|
dstoffs[i] = dstoff;
|
|
#endif
|
|
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 P((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"));
|
|
(void) fprintf(stderr, _("%s: command was '%s', result was %d\n"),
|
|
progname, 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"
|
|
));
|
|
} 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 * const argname;
|
|
{
|
|
register char * name;
|
|
register char * cp;
|
|
|
|
if (argname == NULL || *argname == '\0')
|
|
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) {
|
|
const char *e = strerror(errno);
|
|
|
|
if (errno != EEXIST || !itsdir(name)) {
|
|
(void) fprintf(stderr,
|
|
_("%s: Can't create directory %s: %s\n"),
|
|
progname, name, e);
|
|
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)) {
|
|
(void) fprintf(stderr,
|
|
_("%s: %d did not sign extend correctly\n"),
|
|
progname, i);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
return l;
|
|
}
|
|
|
|
/*
|
|
** UNIX was a registered trademark of The Open Group in 2003.
|
|
*/
|