Common writable folders

[Richard Gaskin]

J. Landman Gay wrote:

> Richard Gaskin wrote:
>> I have an app which will be for Mac and Win, and maybe Linux down the 
>> road, in which I need to store some data in a folder which needs to be 
>> writable by all users.
>> 
>> Both Mac and Win provide common folders for reading data:
>> 
>>   Mac  /HD/System Folder/Application Support
>>   Win  C:/Documents and Settings/All Users/Application Data
>> 
>> ...but in my testing here only users with admin privileges can write to 
>> those folders. :(
>> 
>> What is the OS-recommended place to store common data which can be 
>> written by any user? 
> 
> I had exactly the same problem with a currently-shipping app. I'm 
> writing app-specific data to the two folders you mention above. The only 
> way we could work around it was to wrap our app in an OS-approved 
> installer and have the installer set the permissions for our application 
> support folder to allow access by everyone. The app support/app data 
> folders don't need their permissions reset; only your own 
> standalone-specific folder has to be set. For Mac OS X, we used Apple's 
> package installer. On Windows, most any installer will do this for you.

Thanks for the input, Jacque.

But now I wonder:  Is there a way to do this from within a custom 
Rev-based installer?   How does one trigger the OS X authentication dialog?

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  Richard Gaskin Managing Editor, revJournal
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