static int IsInstallationFile(LPCTSTR lpszFile)
{
IStream* pStream = NULL;
CaCompoundFile cmpFile(lpszFile);
IStorage* pRoot = cmpFile.GetRootStorage();
ASSERT(pRoot);
if (!pRoot)
return -1;
DWORD grfMode = STGM_DIRECT|STGM_READ|STGM_SHARE_EXCLUSIVE;
int nInstallation = -1;
//
// Load Schema Information:
pStream = cmpFile.OpenStream(NULL, _T("SCHEMAINFO"), grfMode);
if (pStream)
{
int nVersion = 0;
CString strItem;
COleStreamFile file (pStream);
CArchive ar(&file, CArchive::load);
ar >> strItem; // Date
ar >> nVersion; // Version
ar >> strItem; // Node
ar >> strItem; // Database
nInstallation = strItem.IsEmpty()? 1: 0;
ar >> strItem; // Schema
ar.Flush();
pStream->Release();
}
return nInstallation;
}
static void
sort(struct dirent **a, int left, int right)
{
struct dirent *tmp, *pivot;
int i, p;
if (left < right) {
pivot = a[left];
p = left;
for (i=left+1; i<=right; i++) {
if (cmpFile(a[i],pivot)<0){
p=p+1;
tmp=a[p];
a[p]=a[i];
a[i]=tmp;
}
}
a[left] = a[p];
a[p] = pivot;
sort(a, left, p-1);
sort(a, p+1, right);
}
}
