On Oct 25, 2006, at 9:10 PM, Wesley W. Terpstra wrote:
As for prefixing all MacOS xattrs with "user.", we'd need to come up
with some rules that would preserve the xattrs for all data paths:
Mac -> Mac, Mac -> Posix -> Mac, and Posix -> Mac -> Posix. So, a
Mac
receiver would need to be able to differentiate what entries
needed the
extra prefix stripped, and which did not. So, perhaps adding
something
like "user.N0nP0s1%." to any non "user." data (that's NonPosix
spelled
with 2 zeros, a one, and a percent). That would make the stripping
rule pretty straight forward on the Mac side.
I just don't know enough about these issues to have an opinion;
that's why I asked here
I will add this:
com.apple.ResourceFork
is used by MacOS internally to expose/modify the resource fork
com.apple.FinderInfo
is used by the Finder to track stuff like icon/program to open with/etc
com.apple.acl.text
is used when a file with an ACL is copied to a non-HFS volume.
However, this seems to be broken, because if you copy the file back,
the EA remains and the ACL is not restored. I suspect this is
probably some bug in osx that will be fixed in the future, though. It
is NOT set when the file has working ACLs on the local volume.
The namespace appears to be flat aside from this, allowing EAs of any
shape and size. Even 'system.x' seems to be allowed, despite an
article I read claiming this was reserved.
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