Piotr Caban : msvcrt: Use _timezone in _ftime64.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: b8bafa2c58f69043debe9c7a962eb5f04dee0ca5
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=b8bafa2c58f69043debe9c7a962eb5f04dee0ca5

Author: Piotr Caban <piotr at codeweavers.com>
Date:   Fri Dec 21 12:44:26 2018 +0100

msvcrt: Use _timezone in _ftime64.

Signed-off-by: Piotr Caban <piotr at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/msvcrt/time.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/dlls/msvcrt/time.c b/dlls/msvcrt/time.c
index 861b2ed..1fee0a9 100644
--- a/dlls/msvcrt/time.c
+++ b/dlls/msvcrt/time.c
@@ -769,17 +769,16 @@ void CDECL MSVCRT__ftime64(struct MSVCRT___timeb64 *buf)
   FILETIME ft;
   ULONGLONG time;
 
-  DWORD tzid = GetTimeZoneInformation(&tzinfo);
+  _tzset_init();
+
   GetSystemTimeAsFileTime(&ft);
 
   time = ((ULONGLONG)ft.dwHighDateTime << 32) | ft.dwLowDateTime;
 
   buf->time = time / TICKSPERSEC - SECS_1601_TO_1970;
   buf->millitm = (time % TICKSPERSEC) / TICKSPERMSEC;
-  buf->timezone = tzinfo.Bias +
-      ( tzid == TIME_ZONE_ID_STANDARD ? tzinfo.StandardBias :
-      ( tzid == TIME_ZONE_ID_DAYLIGHT ? tzinfo.DaylightBias : 0 ));
-  buf->dstflag = (tzid == TIME_ZONE_ID_DAYLIGHT?1:0);
+  buf->timezone = MSVCRT___timezone / 60;
+  buf->dstflag = GetTimeZoneInformation(&tzinfo) == TIME_ZONE_ID_DAYLIGHT;
 }
 
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