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[TZLIB] QueryTimeZoneData(): Don't fail if the optional values "Display", "Std", "Dlt" are missing (or too long to be captured). However fail if the timezone information is missing.

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Hermès Bélusca-Maïto 2020-04-19 18:50:00 +02:00
parent 7c3e96a26a
commit bbdb0ab6a8
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GPG key ID: 3B2539C65E7B93D0
1 changed files with 28 additions and 24 deletions
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52
sdk/lib/tzlib/tzlib.c
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@ -152,6 +152,30 @@ QueryTimeZoneData(
LONG lError;
DWORD dwValueSize;
if (Index)
{
dwValueSize = sizeof(*Index);
lError = RegQueryValueExW(hZoneKey,
L"Index",
NULL,
NULL,
(LPBYTE)Index,
&dwValueSize);
if (lError != ERROR_SUCCESS)
*Index = 0;
}
/* The time zone information structure is mandatory for a valid time zone */
dwValueSize = sizeof(*TimeZoneInfo);
lError = RegQueryValueExW(hZoneKey,
L"TZI",
NULL,
NULL,
(LPBYTE)TimeZoneInfo,
&dwValueSize);
if (lError != ERROR_SUCCESS)
return lError;
if (Description && DescriptionSize && *DescriptionSize > 0)
{
lError = RegQueryValueExW(hZoneKey,
@ -161,7 +185,7 @@ QueryTimeZoneData(
(LPBYTE)Description,
DescriptionSize);
if (lError != ERROR_SUCCESS)
return lError;
*Description = 0;
}
if (StandardName && StandardNameSize && *StandardNameSize > 0)
@ -173,7 +197,7 @@ QueryTimeZoneData(
(LPBYTE)StandardName,
StandardNameSize);
if (lError != ERROR_SUCCESS)
return lError;
*StandardName = 0;
}
if (DaylightName && DaylightNameSize && *DaylightNameSize > 0)
@ -185,30 +209,10 @@ QueryTimeZoneData(
(LPBYTE)DaylightName,
DaylightNameSize);
if (lError != ERROR_SUCCESS)
return lError;
*DaylightName = 0;
}
if (Index)
{
dwValueSize = sizeof(*Index);
lError = RegQueryValueExW(hZoneKey,
L"Index",
NULL,
NULL,
(LPBYTE)Index,
&dwValueSize);
if (lError != ERROR_SUCCESS)
return lError;
}
dwValueSize = sizeof(*TimeZoneInfo);
lError = RegQueryValueExW(hZoneKey,
L"TZI",
NULL,
NULL,
(LPBYTE)TimeZoneInfo,
&dwValueSize);
return lError;
return ERROR_SUCCESS;
}
//