posix acl

[Jeremy Allison]

On Sat, Feb 13, 2016 at 04:44:58AM +0000, Greg Silverman wrote:
> From Windows clients I see many getxattr calls for
> "system.posix_acl_permissions" and "system.posix_acl_default". At this
> time, I return EOPNOTSUPP for  system directories and ENODATA for others.
> 
> If the format of responses to these calls was ASCII, like,
> "u:rwx;g:rw-;o:--x", I could return the permissions in the char * buffer.
> What is the format of those responses?

I already told you. You need to look inside the source code
for libacl-dev.