Re: Overriding file lock for writing extended attributes

On Oct 26, 2009, at 19:01, Kyle Sluder wrote:

> On Mon, Oct 26, 2009 at 2:24 AM, Christiaan Hofman  
> <[email protected]> wrote:
>> When I try to write extended attributes using setxattr() it fails  
>> with an
>> EPERM POSIX error when the file is locked. Is there a way to  
>> override the
>> lock and write extended attributes to locked files? For instance,  
>> when
>> NSDocument saves to a locked file it will be able to write anyway,  
>> usually
>> after asking the user using an alert. So how can I emulate this or  
>> EAs?
>
> File locks are implemented with the uchng flag, not with xattrs.
>
> --Kyle Sluder

What does it matter how locks are implemented? I'm not saying locks  
are put in the EAs, I'm saying locks prevent me from writing EAs.

Christiaan