bool VFS::IsFolder(const char *pszVirtual)
// Returns true iff pszVirtual denotes an existing folder.
// Does NOT support wildcards.
{
string strLocal;
DWORD dw;
if (FindMountPoint(pszVirtual, &_root)) return true;
if (!Map(pszVirtual, strLocal, &_root)) return true;
dw = GetFileAttributes(strLocal.c_str());
return ((dw != -1) && (dw & FILE_ATTRIBUTE_DIRECTORY));
}
tree<VFS::MOUNTPOINT> * VFS::FindMountPoint(const char *pszVirtual, tree<MOUNTPOINT> *ptree)
// Returns a pointer to the tree node described by pszVirtual, or 0.
{
const char *psz;
UINT_PTR dwLen;
if (!strcmp(pszVirtual, "/")) return ptree;
psz = strchr(pszVirtual, '/');
if (psz) dwLen = psz - pszVirtual;
else dwLen = strlen(pszVirtual);
while (ptree) {
if ((ptree->_data.strVirtual.length() == dwLen) && (!dwLen || !_strnicmp(pszVirtual, ptree->_data.strVirtual.c_str(), dwLen))) {
if (psz) {
return FindMountPoint(psz + 1, ptree->_pdown);
} else {
return ptree;
}
} else {
ptree = ptree->_pright;
}
}
return 0;
}
LPVOID VFS::FindFirstFile(const char *pszVirtual, WIN32_FIND_DATA *pw32fd)
// Returns a find handle if a match was found. Otherwise returns 0.
// Supports wildcards.
{
FINDDATA *pfd;
const char *psz;
string str;
psz = strrchr(pszVirtual, '/');
if (psz == NULL) return NULL;
str.assign(pszVirtual, psz);
pfd = new FINDDATA;
pfd->hFind = 0;
pfd->strVirtual = pszVirtual;
pfd->strFilespec = psz + 1;
pfd->ptree = FindMountPoint(str.c_str(), &_root);
if (pfd->ptree) pfd->ptree = pfd->ptree->_pdown;
if (FindNextFile(pfd, pw32fd)) return pfd;
else {
delete pfd;
return 0;
}
}
static VOID DokanControl(PDOKAN_CONTROL Control)
{
PMOUNT_ENTRY mountEntry;
Control->Status = DOKAN_CONTROL_FAIL;
switch (Control->Type)
{
case DOKAN_CONTROL_MOUNT:
DbgPrintW(L"DokanControl Mount\n");
if (DokanControlMount(Control->MountPoint, Control->DeviceName)) {
Control->Status = DOKAN_CONTROL_SUCCESS;
InsertMountEntry(Control);
} else {
Control->Status = DOKAN_CONTROL_FAIL;
}
break;
case DOKAN_CONTROL_UNMOUNT:
DbgPrintW(L"DokanControl Unmount\n");
mountEntry = FindMountEntry(Control);
if (mountEntry == NULL) {
if (!wcslen(Control->MountPoint))
FindMountPoint(Control);
DbgPrintW(L"DokanControl MountEntry not found. Try unmount '%s' force: %d\n", Control->MountPoint, Control->Option);
if (Control->Option == DOKAN_CONTROL_OPTION_FORCE_UNMOUNT &&
DokanControlUnmount(Control->MountPoint)) {
Control->Status = DOKAN_CONTROL_SUCCESS;
break;
}
Control->Status = DOKAN_CONTROL_FAIL;
break;
}
if (DokanControlUnmount(mountEntry->MountControl.MountPoint)) {
Control->Status = DOKAN_CONTROL_SUCCESS;
if (Control->DeviceName[0] == L'\0') {
wcscpy_s(Control->DeviceName, sizeof(Control->DeviceName) / sizeof(WCHAR),
mountEntry->MountControl.DeviceName);
}
RemoveMountEntry(mountEntry);
} else {
mountEntry->MountControl.Status = DOKAN_CONTROL_FAIL;
Control->Status = DOKAN_CONTROL_FAIL;
}
break;
case DOKAN_CONTROL_CHECK:
{
DbgPrint("DokanControl Check\n");
Control->Status = 0;
}
break;
case DOKAN_CONTROL_FIND:
{
DbgPrintW(L"DokanControl Find\n");
DokanControlFind(Control);
}
break;
case DOKAN_CONTROL_LIST:
{
DbgPrintW(L"DokanControl List\n");
DokanControlList(Control);
}
break;
default:
DbgPrintW(L"DokanControl UnknownType %u\n", Control->Type);
}
return;
}