On Mar 29 13:12, Corinna Vinschen via Cygwin wrote: > On Mar 29 12:43, Bruno Haible via Cygwin wrote: > > OK, and what does this mean for the *files* created in such a directory? > > Just for clarity, permissions in Windows are *always* defined by an ACL. > There's no such thing as default POSIX perms. Don't try to look at > non-Cygwin-created files from a POSIX permission POV, it's a lost cause. > > But your question was specificially about files created in the above > dir: > > - Files created by a Cygwin process inside that dir will have only the > usual three ACL entries constituting standard POSIX permission bits, > combined with their umask, i.e.: > > $ cd /tmp/glo1FkFx/tmpdir0 > $ umask > 22 > $ touch foo > $ getfacl foo > # file: foo > # owner: corinna > # group: vinschen > user::rw- > group::r-- > other::r-- > > - Files created by non-Cygwin processes inside that dir will have by > default(*) only the usual three ACL entries constituting standard > POSIX permission bits, but there's no umask handling in the non-Cygwin > process, i.e. > > $ cd /tmp/glo1FkFx/tmpdir0 > $ cmd > C:\cygwin64\tmp\glQatIoG\tmpdir0>echo foo > bar > C:\cygwin64\tmp\glQatIoG\tmpdir0>exit > $ getfacl bar > # file: bar > # owner: corinna > # group: vinschen > user::rwx > group::r-x > other::r-x > > (*) Most Windows processes rely entirely on the permissions in > the ACLs and the Windows ACL inheritance rules. > > Does that answer your question? > [...] > For non-Cygwin-generated files, there's no such thing as a standard ACL, > and the Cygwin user, looking from the POSIX perspective when using it, > should see the '+'-sign to notice this file has no POSIX permissions.
Erm... except for non-Cygwin-generated files created in a Cygwin-created dir, as outlined in the above example, in which case the inherited default permissions emulate POSIX permissions and acl_extended_file() on them returns 0. I wasn't sure this was clear from the example... Corinna -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
