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Check if file size <= LONG_MAX.

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This commit is contained in:
Tsuda Kageyu 2016-10-27 15:10:34 +09:00
parent 8d873e4e3e
commit 06ca9a099d
1 changed files with 7 additions and 7 deletions
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14
taglib/toolkit/tfilestream.cpp
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@ -50,7 +50,7 @@ namespace
FileHandle openFile(const FileName &path, bool readOnly)
{
const DWORD access = readOnly ? GENERIC_READ : (GENERIC_READ | GENERIC_WRITE);
#if defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0602)
return CreateFile2(path.toString().toCWString(), access, FILE_SHARE_READ, OPEN_EXISTING, NULL);
#else
@ -442,14 +442,14 @@ long FileStream::length()
SetLastError(NO_ERROR);
#if defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0602)
LARGE_INTEGER fSize;
GetFileSizeEx(d->file, &fSize);
LONGLONG fileSize = fSize.QuadPart;
LARGE_INTEGER fileSize;
GetFileSizeEx(d->file, &fileSize);
#else
const DWORD fileSize = GetFileSize(d->file, NULL);
ULARGE_INTEGER fileSize;
fileSize.LowPart = GetFileSize(d->file, &fileSize.HighPart);
#endif
if(GetLastError() == NO_ERROR) {
return static_cast<long>(fileSize);
if(GetLastError() == NO_ERROR && fileSize.QuadPart <= LONG_MAX) {
return static_cast<long>(fileSize.QuadPart);
}
else {
debug("FileStream::length() -- Failed to get the file size.");