Eric Kolotyluk wrote:
>The problem is when I try something like
> chown user directory
>
>I get back
> Chown: directory: Operation not permitted
>
>The current owner of directory is root. I can't think of any way to make
>this work without enabling the root account and doing an "su"
1) Ask the user for the admin password, then use 'sudo -S'. See 'man
sudo'. For this to work, the user must already be logged in under an admin
account.
2) Use my open source AuthKit, which is a Java API to Mac OS X's
system-level authentication dialog:
<http://www.amug.org/~glguerin/sw/#authkit>
AuthKit does NOT need to be logged in under an admin account. The user
still has to know an admin-account user-name and password, though.
AuthKit uses JNI code, which I have not yet compiled as Universal Binary.
However, I include all source, so you can do it yourself if you need it.
And last time I checked, it did work on J2SE 5.0.
>From the GUI I can select a folder or file and bring up the Get Info panel
>and I can change the owner from system to my login ID, but is there any
>way to do this programmatically?
That's not just "the GUI": it's the Finder. So a 3rd possibility is to
exec() an 'osascript' command that tells the Finder to present a Get Info
on something and then activate (come to front). If you're only changing
permissions rarely, that may be a workable strategy, because it delegates
all the authentication to the Finder. See 'man osascript', and for the
scripting verbs, open the Finder's dictionary in Script Editor.
I can't help asking:
What system files do you want to change the permission or ownership of?
-- GG
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