| 1,5 → 1,12 |
|---|
| /* |
| * localtime_r.c |
| * Original Author: Adapted from tzcode maintained by Arthur David Olson. |
| * Modifications: |
| * - Changed to mktm_r and added __tzcalc_limits - 04/10/02, Jeff Johnston |
| * - Fixed bug in mday computations - 08/12/04, Alex Mogilnikov <alx@intellectronika.ru> |
| * - Fixed bug in __tzcalc_limits - 08/12/04, Alex Mogilnikov <alx@intellectronika.ru> |
| * - Implement localtime_r() with gmtime_r() and the conditional code moved |
| * from _mktm_r() - 05/09/14, Freddie Chopin <freddie_chopin@op.pl> |
| * |
| * Converts the calendar time pointed to by tim_p into a broken-down time |
| * expressed as local time. Returns a pointer to a structure containing the |
| 6,7 → 13,6 |
|---|
| * broken-down time. |
| */ |
| |
| #include <time.h> |
| #include "local.h" |
| |
| struct tm * |
| 14,5 → 20,108 |
|---|
| _CONST time_t *__restrict tim_p _AND |
| struct tm *__restrict res) |
| { |
| return _mktm_r (tim_p, res, 0); |
| long offset; |
| int hours, mins, secs; |
| int year; |
| __tzinfo_type *_CONST tz = __gettzinfo (); |
| _CONST int *ip; |
| |
| res = gmtime_r (tim_p, res); |
| |
| year = res->tm_year + YEAR_BASE; |
| ip = __month_lengths[isleap(year)]; |
| |
| TZ_LOCK; |
| _tzset_unlocked (); |
| if (_daylight) |
| { |
| if (year == tz->__tzyear || __tzcalc_limits (year)) |
| res->tm_isdst = (tz->__tznorth |
| ? (*tim_p >= tz->__tzrule[0].change |
| && *tim_p < tz->__tzrule[1].change) |
| : (*tim_p >= tz->__tzrule[0].change |
| || *tim_p < tz->__tzrule[1].change)); |
| else |
| res->tm_isdst = -1; |
| } |
| else |
| res->tm_isdst = 0; |
| |
| offset = (res->tm_isdst == 1 |
| ? tz->__tzrule[1].offset |
| : tz->__tzrule[0].offset); |
| |
| hours = (int) (offset / SECSPERHOUR); |
| offset = offset % SECSPERHOUR; |
| |
| mins = (int) (offset / SECSPERMIN); |
| secs = (int) (offset % SECSPERMIN); |
| |
| res->tm_sec -= secs; |
| res->tm_min -= mins; |
| res->tm_hour -= hours; |
| |
| if (res->tm_sec >= SECSPERMIN) |
| { |
| res->tm_min += 1; |
| res->tm_sec -= SECSPERMIN; |
| } |
| else if (res->tm_sec < 0) |
| { |
| res->tm_min -= 1; |
| res->tm_sec += SECSPERMIN; |
| } |
| if (res->tm_min >= MINSPERHOUR) |
| { |
| res->tm_hour += 1; |
| res->tm_min -= MINSPERHOUR; |
| } |
| else if (res->tm_min < 0) |
| { |
| res->tm_hour -= 1; |
| res->tm_min += MINSPERHOUR; |
| } |
| if (res->tm_hour >= HOURSPERDAY) |
| { |
| ++res->tm_yday; |
| ++res->tm_wday; |
| if (res->tm_wday > 6) |
| res->tm_wday = 0; |
| ++res->tm_mday; |
| res->tm_hour -= HOURSPERDAY; |
| if (res->tm_mday > ip[res->tm_mon]) |
| { |
| res->tm_mday -= ip[res->tm_mon]; |
| res->tm_mon += 1; |
| if (res->tm_mon == 12) |
| { |
| res->tm_mon = 0; |
| res->tm_year += 1; |
| res->tm_yday = 0; |
| } |
| } |
| } |
| else if (res->tm_hour < 0) |
| { |
| res->tm_yday -= 1; |
| res->tm_wday -= 1; |
| if (res->tm_wday < 0) |
| res->tm_wday = 6; |
| res->tm_mday -= 1; |
| res->tm_hour += 24; |
| if (res->tm_mday == 0) |
| { |
| res->tm_mon -= 1; |
| if (res->tm_mon < 0) |
| { |
| res->tm_mon = 11; |
| res->tm_year -= 1; |
| res->tm_yday = 364 + isleap(res->tm_year + YEAR_BASE); |
| } |
| res->tm_mday = ip[res->tm_mon]; |
| } |
| } |
| TZ_UNLOCK; |
| |
| return (res); |
| } |