[winpr,timezone] add API to convert from IANA

convert IANA format timezone strings to windows format.
FreeRDP · May 13, 2024 · 768adaf · 768adaf
1 parent 41d63e1
commit 768adaf
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diff --git a/winpr/include/winpr/timezone.h b/winpr/include/winpr/timezone.h
@@ -74,6 +74,8 @@ extern "C"
 
 #endif
 
+	WINPR_API TIME_ZONE_INFORMATION* winpr_GetWindowsTimezoneFromIANA(const char* tzid);
+
 /*
  * GetDynamicTimeZoneInformation is provided by the SDK if _WIN32_WINNT >= 0x0600 in SDKs above 7.1A
  * and incorrectly if _WIN32_WINNT >= 0x0501 in older SDKs

diff --git a/winpr/libwinpr/timezone/timezone.c b/winpr/libwinpr/timezone/timezone.c
@@ -685,3 +685,14 @@ DWORD GetDynamicTimeZoneInformationEffectiveYears(
 }
 
 #endif
+
+TIME_ZONE_INFORMATION* winpr_GetWindowsTimezoneFromIANA(const char* tzid)
+{
+	WCHAR* wzid = tz_map_iana_to_windows(tzid);
+	if (!wzid)
+		return NULL;
+
+	TIME_ZONE_INFORMATION* entry = winpr_get_from_id(tzid, wzid);
+	free(wzid);
+	return entry;
+}