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Diffstat (limited to 'timezone.h')
| -rw-r--r-- | timezone.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/timezone.h b/timezone.h new file mode 100644 index 0000000..f4f46f2 --- /dev/null +++ b/timezone.h @@ -0,0 +1,83 @@ +/* + timezone.h - Zip 3 + + Copyright (c) 1990-2004 Info-ZIP. All rights reserved. + + See the accompanying file LICENSE, version 2003-May-08 or later + (the contents of which are also included in zip.h) for terms of use. + If, for some reason, all these files are missing, the Info-ZIP license + also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html +*/ +#ifndef __timezone_h +#define __timezone_h + +#ifndef IZ_MKTIME_ONLY + +/* limits for our timezone info data: + * we support only basic standard and daylight time, with max 2 transitions + * per year, but for the maximum range of years a 32-bit second counter + * can cover (these are 136 years plus a bit more than one month) + */ +#define TZ_MAX_TIMES 272 /* (=2*(LastGoodYr + 1 - FirstGoodYr) */ +#define TZ_MAX_TYPES 2 /* We only support basic standard and daylight */ +#ifdef WIN32 /* Win32 tzinfo supplies at max (2 * 32) chars of tz names */ +#define TZ_MAX_CHARS 64 /* Maximum number of abbreviation characters */ +#else +#define TZ_MAX_CHARS 50 /* Maximum number of abbreviation characters */ +#endif + +/* supported types of transition rules */ +#define JULIAN_DAY 0 /* Jn - Julian day */ +#define DAY_OF_YEAR 1 /* n - day of year */ +#define MONTH_NTH_DAY_OF_WEEK 2 /* Mm.n.d - month, week, day of week */ + + +struct ttinfo { + long tt_gmtoff; /* UTC offset in seconds */ + int tt_isdst; /* used to set tm_isdst */ + int tt_abbrind; /* abbreviation list index */ +}; + +struct state { + int timecnt; + int typecnt; + int charcnt; + time_t ats[TZ_MAX_TIMES]; + unsigned char types[TZ_MAX_TIMES]; + struct ttinfo ttis[TZ_MAX_TYPES]; + char chars[TZ_MAX_CHARS]; +}; + +struct rule { + int r_type; /* type of rule--JULIAN_DAY etc */ + int r_day; /* day number of rule */ + int r_week; /* week number of rule */ + int r_mon; /* month number of rule */ + long r_time; /* transition time of rule */ +}; + +extern int real_timezone_is_set; /* set by tzset() */ + + +/* prototypes of functions not in time.h */ + +void __tzset OF((void)); + +#ifdef NEED__ISINDST +int _isindst OF((struct tm *tb)); +#endif + +/* callback function to be supplied by the program that uses this library */ +int GetPlatformLocalTimezone OF((register struct state * ZCONST sp, + void (*fill_tzstate_from_rules)(struct state * ZCONST sp_res, + ZCONST struct rule * ZCONST start, + ZCONST struct rule * ZCONST end))); +#ifdef IZTZ_SETLOCALTZINFO +void set_TZ OF((long time_zone, int day_light)); +#endif + +#endif /* !IZ_MKTIME_ONLY */ + +time_t mkgmtime OF((struct tm *tm)); + +#endif |