Changing permissions resets extended access rights flags

[cyberduck]

07eb6ed created the issue

I have a remote folder like so:

drwxr-s--- 2 me www-data 4096 Oct  7 15:31 htdocs

Then I want to set it to be group-writeable in Cyberduck. So I login (SFTP) I bring up the Info-dialogue for the folder and click the appropriate checkbox to make it so. Now the folder looks like this:

drwxrwx--- 2 me www-data 4096 Oct  7 15:31 htdocs

The setgid-bit has been reset. Surely, this can't be correct?

cheers!

[cyberduck]

@dkocher commented

The same also applies to changing UNIX permissions when connected to FTP.

[cyberduck]

@dkocher commented

We should also honour both setuid and setgid and sticky bits.

[cyberduck]

@dkocher commented

           4000    (the set-user-ID-on-execution bit) Executable files with this bit set will run with effective
                   uid set to the uid of the file owner.  Directories with the set-user-id bit set will force all
                   files and sub-directories created in them to be owned by the directory owner and not by the
                   uid of the creating process, if the underlying file system supports this feature: see chmod(2)
                   and the suiddir option to mount(8).
           2000    (the set-group-ID-on-execution bit) Executable files with this bit set will run with effective
                   gid set to the gid of the file owner.
           1000    (the sticky bit) See chmod(2) and sticky(8).

[cyberduck]

@dkocher commented

#4387 closed as duplicate.

[cyberduck]

@dkocher commented

In d5f48ff.

[cyberduck]

@dkocher commented

setuid and setgid In fb2e93b.

[cyberduck]

@dkocher commented

New test for SFTP in 87028f4.

[cyberduck]

@dkocher commented

Fix for FTP and test in f6a538c.