fixed: security vulnerability in 'ln' winix function

a user could create a hardlink to any file and the new link 
       had user_id, group_id and permissions the same as for new generated files,
       this allowes to overwrite any existing file in the filesystem,
       now user_id, group_id, permissions are the same as from the oryginal file



git-svn-id: svn://ttmath.org/publicrep/winix/trunk@941 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/dirs.cpp

@@ -517,7 +517,11 @@ void Dirs::CopyDirTab(const std::vector<Item*> & in, std::vector<Item*> & out)
 
 
 
-
+/*
+	!! IMPROVE ME
+	may dir_tab can be empty when link_to is not relative?
+	and now the algorith doesn't check if link_to is not relative (it only uses dir_tab)
+*/
 bool Dirs::AnalyzeDir(std::vector<Item*> & dir_tab, const std::wstring & link_to, size_t & i)
 {
 	size_t old_i;