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Windows: make VeraCrypt Expander able to resume expansion of volumes whose previous expansion was aborted before it finishes

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This commit is contained in:
Mounir IDRASSI
2019-10-18 23:04:59 +02:00
parent 5b88a183ac
commit 008d0503be
2 changed files with 18 additions and 7 deletions
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2
src/ExpandVolume/DlgExpandVolume.cpp
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@@ -717,7 +717,7 @@ void ExpandVolumeWizard (HWND hwndDlg, wchar_t *lpszVolume)
if ( !bIsDevice ) if ( !bIsDevice )
{ {
if ( newVolumeSize < hostSize + TC_MINVAL_FS_EXPAND) if ( (newVolumeSize < hostSize + TC_MINVAL_FS_EXPAND) && ((hostSize == volSize) || (newVolumeSize != hostSize) || ((hostSize - volSize) < TC_MINVAL_FS_EXPAND)))
{ {
StringCbPrintfW(szTmp,sizeof(szTmp),L"New volume size too small, must be at least %I64u kB larger than the current size.",TC_MINVAL_FS_EXPAND/BYTES_PER_KB); StringCbPrintfW(szTmp,sizeof(szTmp),L"New volume size too small, must be at least %I64u kB larger than the current size.",TC_MINVAL_FS_EXPAND/BYTES_PER_KB);
MessageBoxW (hwndDlg, szTmp, lpszTitle, MB_OK | MB_ICONEXCLAMATION ); MessageBoxW (hwndDlg, szTmp, lpszTitle, MB_OK | MB_ICONEXCLAMATION );

23
src/ExpandVolume/ExpandVolume.c
View File

@@ -750,13 +750,24 @@ static int ExpandVolume (HWND hwndDlg, wchar_t *lpszVolume, Password *pVolumePas
liNewSize.QuadPart=(LONGLONG)newHostSize; liNewSize.QuadPart=(LONGLONG)newHostSize;
// Preallocate the file if (hostSize != newHostSize)
if (!SetFilePointerEx (dev, liNewSize, NULL, FILE_BEGIN)
|| !SetEndOfFile (dev)
|| SetFilePointer (dev, 0, NULL, FILE_BEGIN) != 0)
{ {
nStatus = ERR_OS_ERROR; // Preallocate the file
goto error; if (!SetFilePointerEx (dev, liNewSize, NULL, FILE_BEGIN)
|| !SetEndOfFile (dev)
|| SetFilePointer (dev, 0, NULL, FILE_BEGIN) != 0)
{
nStatus = ERR_OS_ERROR;
goto error;
}
}
else
{
if (SetFilePointer (dev, 0, NULL, FILE_BEGIN) != 0)
{
nStatus = ERR_OS_ERROR;
goto error;
}
} }
} }