static bool GetSymLink(CFSTR path, CReparseAttr &attr)
{
NIO::CInFile file;
if (!file.Open(path,
FILE_SHARE_READ,
OPEN_EXISTING,
FILE_FLAG_OPEN_REPARSE_POINT | FILE_FLAG_BACKUP_SEMANTICS))
return false;
const unsigned kBufSize = MAXIMUM_REPARSE_DATA_BUFFER_SIZE;
CByteArr buf(kBufSize);
DWORD returnedSize;
if (!file.DeviceIoControlOut(my_FSCTL_GET_REPARSE_POINT, buf, kBufSize, &returnedSize))
return false;
if (!attr.Parse(buf, returnedSize))
return false;
CByteBuffer data2;
if (!FillLinkData(data2, attr.GetPath(), attr.IsSymLink()))
return false;
if (data2.Size() != returnedSize ||
memcmp(data2, buf, returnedSize) != 0)
return false;
return true;
}
bool CLinkDialog::OnInit()
{
#ifdef LANG
LangSetWindowText(*this, IDD_LINK);
LangSetDlgItems(*this, kLangIDs, ARRAY_SIZE(kLangIDs));
#endif
_pathFromCombo.Attach(GetItem(IDC_LINK_PATH_FROM));
_pathToCombo.Attach(GetItem(IDC_LINK_PATH_TO));
if (!FilePath.IsEmpty())
{
NFind::CFileInfo fi;
int linkType = 0;
if (!fi.Find(us2fs(FilePath)))
linkType = IDR_LINK_TYPE_SYM_FILE;
else
{
if (fi.HasReparsePoint())
{
CReparseAttr attr;
bool res = GetSymLink(us2fs(FilePath), attr);
UString s = attr.PrintName;
if (!attr.IsOkNamePair())
{
s += L" : ";
s += attr.SubsName;
}
if (!res)
s = L"ERROR: " + s;
SetItemText(IDT_LINK_PATH_TO_CUR, s);
UString destPath = attr.GetPath();
_pathFromCombo.SetText(FilePath);
_pathToCombo.SetText(destPath);
if (res)
{
if (attr.IsMountPoint())
linkType = IDR_LINK_TYPE_JUNCTION;
if (attr.IsSymLink())
{
linkType =
fi.IsDir() ?
IDR_LINK_TYPE_SYM_DIR :
IDR_LINK_TYPE_SYM_FILE;
// if (attr.IsRelative()) linkType = IDR_LINK_TYPE_SYM_RELATIVE;
}
if (linkType != 0)
Set_LinkType_Radio(linkType);
}
}
else
{
_pathFromCombo.SetText(AnotherPath);
_pathToCombo.SetText(FilePath);
if (fi.IsDir())
linkType = g_SymLink_Supported ?
IDR_LINK_TYPE_SYM_DIR :
IDR_LINK_TYPE_JUNCTION;
else
linkType = IDR_LINK_TYPE_HARD;
}
}
if (linkType != 0)
Set_LinkType_Radio(linkType);
}
NormalizeSize();
return CModalDialog::OnInit();
}
