Cygwin by default, tries to implement POSIX permissions using the NT ACL system - fairly well described here:
http://cygwin.com/cygwin-ug-net/ntsec.html The way this feature is implemented interacts poorly with Vista, however. A previous mailing (with reply) on this list that tried to describe this issue is here: http://www.mail-archive.com/cygwin@cygwin.com/msg83783.html Reply: http://www.mail-archive.com/cygwin@cygwin.com/msg83794.html The Vista feature in question is "Shared Files", which is *not* the same thing as a network share. Rather, it describes files which are shared between *different* users of the *same* computer, rather than different users in a network environment. Vista comes with a saved search that tries to show all such "Shared Files" in your profile directory, recursively; i.e. files that you would reasonably expect to own, but are letting other users of the same computer access. The saved search is located here: C:\Users\<user-name>\Searches\Shared By Me.search-ms The way it appears to work is by looking for files and directories which have access-allowed access control entries (ACEs) for the groups Users or Everyone. Unfortunately, Cygwin creates an ACE for the group Everyone, even with umask 0077, or after chmod 0700 is applied. Specifically, this is what it looks like using cacls: Everyone:(special access:) READ_CONTROL FILE_READ_EA FILE_READ_ATTRIBUTES How can addition of this ACE be controlled or prevented by default for Cygwin applications? Thanks, -- Barry -- http://barrkel.blogspot.com/ -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
