diff options
Diffstat (limited to 'timezone/zic.c')
-rw-r--r-- | timezone/zic.c | 89 |
1 files changed, 37 insertions, 52 deletions
diff --git a/timezone/zic.c b/timezone/zic.c index d855475f9f..9bb8662e55 100644 --- a/timezone/zic.c +++ b/timezone/zic.c @@ -1,10 +1,4 @@ -static char elsieid[] = "@(#)zic.c 7.118"; - -/* -** Regardless of the type of time_t, we do our work using this type. -*/ - -typedef int zic_t; +static char elsieid[] = "@(#)zic.c 7.116"; #include "private.h" #include "locale.h" @@ -56,7 +50,7 @@ struct rule { const char * r_abbrvar; /* variable part of abbreviation */ int r_todo; /* a rule to do (used in outzone) */ - zic_t r_temp; /* used in outzone */ + time_t r_temp; /* used in outzone */ }; /* @@ -82,7 +76,7 @@ struct zone { int z_nrules; struct rule z_untilrule; - zic_t z_untiltime; + time_t z_untiltime; }; extern int getopt P((int argc, char * const argv[], @@ -91,10 +85,10 @@ extern int link P((const char * fromname, const char * toname)); extern char * optarg; extern int optind; -static void addtt P((zic_t starttime, int type)); +static void addtt P((time_t starttime, int type)); static int addtype P((long gmtoff, const char * abbr, int isdst, int ttisstd, int ttisgmt)); -static void leapadd P((zic_t t, int positive, int rolling, int count)); +static void leapadd P((time_t t, int positive, int rolling, int count)); static void adjleap P((void)); static void associate P((void)); static int ciequal P((const char * ap, const char * bp)); @@ -127,13 +121,13 @@ static long oadd P((long t1, long t2)); static void outzone P((const struct zone * zp, int ntzones)); static void puttzcode P((long code, FILE * fp)); static int rcomp P((const void * leftp, const void * rightp)); -static zic_t rpytime P((const struct rule * rp, int wantedy)); +static time_t rpytime P((const struct rule * rp, int wantedy)); static void rulesub P((struct rule * rp, const char * loyearp, const char * hiyearp, const char * typep, const char * monthp, const char * dayp, const char * timep)); static void setboundaries P((void)); -static zic_t tadd P((zic_t t1, long t2)); +static time_t tadd P((time_t t1, long t2)); static void usage P((void)); static void writezone P((const char * name)); static int yearistype P((int year, const char * type)); @@ -147,10 +141,10 @@ static int errors; static const char * filename; static int leapcnt; static int linenum; -static zic_t max_time; +static time_t max_time; static int max_year; static int max_year_representable; -static zic_t min_time; +static time_t min_time; static int min_year; static int min_year_representable; static int noise; @@ -340,7 +334,7 @@ static const int len_years[2] = { }; static struct attype { - zic_t at; + time_t at; unsigned char type; } attypes[TZ_MAX_TIMES]; static long gmtoffs[TZ_MAX_TYPES]; @@ -349,7 +343,7 @@ static unsigned char abbrinds[TZ_MAX_TYPES]; static char ttisstds[TZ_MAX_TYPES]; static char ttisgmts[TZ_MAX_TYPES]; static char chars[TZ_MAX_CHARS]; -static zic_t trans[TZ_MAX_LEAPS]; +static time_t trans[TZ_MAX_LEAPS]; static long corr[TZ_MAX_LEAPS]; static char roll[TZ_MAX_LEAPS]; @@ -635,7 +629,7 @@ const char * const tofile; register char * symlinkcontents = NULL; while ((s = strchr(s+1, '/')) != NULL) symlinkcontents = ecatalloc(symlinkcontents, "../"); - symlinkcontents = ecatalloc(symlinkcontents, fromfile); + symlinkcontents = ecatalloc(symlinkcontents, fromname); result = unlink(toname); if (result != 0 && errno != ENOENT) { @@ -682,36 +676,25 @@ warning(_("hard link failed, symbolic link used")); */ #define MAX_BITS_IN_FILE 32 -#define TIME_T_BITS_IN_FILE ((TYPE_BIT(zic_t) < MAX_BITS_IN_FILE) ? \ - TYPE_BIT(zic_t) : MAX_BITS_IN_FILE) +#define TIME_T_BITS_IN_FILE ((TYPE_BIT(time_t) < MAX_BITS_IN_FILE) ? TYPE_BIT(time_t) : MAX_BITS_IN_FILE) static void setboundaries P((void)) { - register int i; - - if (TYPE_SIGNED(zic_t)) { - min_time = -1; - for (i = 0; i < TIME_T_BITS_IN_FILE - 1; ++i) - min_time *= 2; - max_time = -(min_time + 1); + if (TYPE_SIGNED(time_t)) { + min_time = ~ (time_t) 0; + min_time <<= TIME_T_BITS_IN_FILE - 1; + max_time = ~ (time_t) 0 - min_time; if (sflag) min_time = 0; } else { min_time = 0; max_time = 2 - sflag; - for (i = 0; i < TIME_T_BITS_IN_FILE - 1; ++i) - max_time *= 2; + max_time <<= TIME_T_BITS_IN_FILE - 1; --max_time; } - { - time_t t; - - t = (time_t) min_time; - min_year = TM_YEAR_BASE + gmtime(&t)->tm_year; - t = (time_t) max_time; - max_year = TM_YEAR_BASE + gmtime(&t)->tm_year; - } + min_year = TM_YEAR_BASE + gmtime(&min_time)->tm_year; + max_year = TM_YEAR_BASE + gmtime(&max_time)->tm_year; min_year_representable = min_year; max_year_representable = max_year; } @@ -1137,7 +1120,7 @@ const int nfields; register int i, j; int year, month, day; long dayoff, tod; - zic_t t; + time_t t; if (nfields != LEAP_FIELDS) { error(_("wrong number of fields on Leap line")); @@ -1181,7 +1164,7 @@ const int nfields; return; } dayoff = oadd(dayoff, eitol(day - 1)); - if (dayoff < 0 && !TYPE_SIGNED(zic_t)) { + if (dayoff < 0 && !TYPE_SIGNED(time_t)) { error(_("time before zero")); return; } @@ -1193,7 +1176,7 @@ const int nfields; error(_("time too large")); return; } - t = (zic_t) dayoff * SECSPERDAY; + t = (time_t) dayoff * SECSPERDAY; tod = gethms(fields[LP_TIME], _("invalid time of day"), FALSE); cp = fields[LP_CORR]; { @@ -1455,7 +1438,7 @@ const char * const name; register int i, j; static char * fullname; static struct tzhead tzh; - zic_t ats[TZ_MAX_TIMES]; + time_t ats[TZ_MAX_TIMES]; unsigned char types[TZ_MAX_TIMES]; /* @@ -1620,7 +1603,7 @@ const int zonecount; register struct rule * rp; register int i, j; register int usestart, useuntil; - register zic_t starttime, untiltime; + register time_t starttime, untiltime; register long gmtoff; register long stdoff; register int year; @@ -1689,7 +1672,7 @@ const int zonecount; } for ( ; ; ) { register int k; - register zic_t jtime, ktime; + register time_t jtime, ktime; register long offset; char buf[BUFSIZ]; @@ -1801,7 +1784,7 @@ error(_("can't determine time zone abbreviation to use just after until time")); static void addtt(starttime, type) -const zic_t starttime; +const time_t starttime; int type; { if (starttime <= min_time || @@ -1885,7 +1868,7 @@ const int ttisgmt; static void leapadd(t, positive, rolling, count) -const zic_t t; +const time_t t; const int positive; const int rolling; int count; @@ -2073,12 +2056,12 @@ const long t2; return t; } -static zic_t +static time_t tadd(t1, t2) -const zic_t t1; +const time_t t1; const long t2; { - register zic_t t; + register time_t t; if (t1 == max_time && t2 > 0) return max_time; @@ -2097,14 +2080,14 @@ const long t2; ** 1970, 00:00 LOCAL time - in that year that the rule refers to. */ -static zic_t +static time_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; + register time_t t; if (wantedy == INT_MIN) return min_time; @@ -2171,13 +2154,15 @@ register const int wantedy; warning(_("rule goes past start/end of month--will not work with pre-2004 versions of zic")); } } - if (dayoff < 0 && !TYPE_SIGNED(zic_t)) + if (dayoff < 0 && !TYPE_SIGNED(time_t)) return min_time; if (dayoff < min_time / SECSPERDAY) return min_time; if (dayoff > max_time / SECSPERDAY) return max_time; - t = (zic_t) dayoff * SECSPERDAY; + t = (time_t) dayoff * SECSPERDAY; + if (t > 0 && max_time - t < rp->r_tod) + return max_time; return tadd(t, rp->r_tod); } |