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Obnam should provide xattr and ACL support. --liw

I only need to support extended attributes, since ACLs are implemented
in terms of those. Good, this makes things simpler. I can just read the
list of xattrs on backup, and set it on restore, and I can treat the
list as a string blob. It seems that in Linux, one needs to do a syscall
for each key/value pair for a file, but there's a library function that
operates on multiple pairs at once, and on Irix they're syscalls. Those
functions have a fairly complicated API, though. Might want to keep
things simple, at least initially.  --liw

This is now implemented for local filesystems. Paramiko does not seem
to support them for SFTP, so that will have to not work. --liw

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