Hello, we already have a number of Extended Attribute system calls (*xattr) in the 2.5.x kernel. For implement them on file systems we also need the ENOATTR error. It makes little sense to reuse an existing error number as glibc's strerror() wouldn't be able to create an intelligent text message. ENOATTR also exists on Irix and AIX. Error messages for ENOATTR should be added to glibc once ENOATTR is defined in the kernel. I have attached a patch against glibc that adds the English error text. In addition to ENOATTR we also need to clarify the ENOTSUP / EOPNOTSUPP / ENOTSUPP issue, which I have posted yesterday (with no comments so far). For details concerning the xattr system calls you may find the manual pages interesting, which are available as part of the attr-devel package, and online at . Regards, Andreas. ------------------------------------------------------------------ Andreas Gruenbacher SuSE Linux AG mailto:agruen@suse.de Deutschherrnstr. 15-19 http://www.suse.de/ D-90429 Nuernberg, Germany