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Clamp utime range (Wnd)

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This commit is contained in:
Nekotekina 2017-11-23 22:18:38 +03:00
parent 477c6fdedd
commit 2ac773385f
1 changed files with 18 additions and 3 deletions
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21
Utilities/File.cpp
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@ -75,10 +75,25 @@ static time_t to_time(const FILETIME& ft)
static FILETIME from_time(s64 _time)
{
const ullong wtime = (_time + 11644473600ULL) * 10000000ULL;
FILETIME result;
result.dwLowDateTime = static_cast<DWORD>(wtime);
result.dwHighDateTime = static_cast<DWORD>(wtime >> 32);
if (_time <= -11644473600ll)
{
result.dwLowDateTime = 0;
result.dwHighDateTime = 0;
}
else if (_time > INT64_MAX / 10000000ll - 11644473600ll)
{
result.dwLowDateTime = 0xffffffff;
result.dwHighDateTime = 0x7fffffff;
}
else
{
const ullong wtime = (_time + 11644473600ull) * 10000000ull;
result.dwLowDateTime = static_cast<DWORD>(wtime);
result.dwHighDateTime = static_cast<DWORD>(wtime >> 32);
}
return result;
}