[Bug 51871] New: getxattr() man page wrongly refers to ENOATTR

[Bug 51871] New: getxattr() man page wrongly refers to ENOATTR

[bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r]

https://bugzilla.kernel.org/show_bug.cgi?id=51871

           Summary: getxattr() man page wrongly refers to ENOATTR
           Product: Documentation
           Version: unspecified
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: man-pages
        AssignedTo: documentation_man-pages-ztI5WcYan/vQLgFONoPN62D2FQJk+8+b@public.gmane.org
        ReportedBy: andrew_perepechko-qCPWdT176rRBDgjK7y7TUQ@public.gmane.org
        Regression: No


man 2 getxattr reads:

"If the named attribute does not exist, or the process has no access to this
attribute, errno is set to ENOATTR."

However, the actual error code returned is ENODATA.

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[Bug 51871] getxattr() man page wrongly refers to ENOATTR

[bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r]

https://bugzilla.kernel.org/show_bug.cgi?id=51871


Andrew Perepechko <andrew_perepechko-qCPWdT176rRBDgjK7y7TUQ@public.gmane.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |INVALID




--- Comment #1 from Andrew Perepechko <andrew_perepechko-qCPWdT176rRBDgjK7y7TUQ@public.gmane.org>  2012-12-20 18:13:53 ---
Hm, actually ENODATA is an alias of ENOATTR defined in libattr header.

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Re: [Bug 51871] getxattr() man page wrongly refers to ENOATTR

[Christoph Hellwig]

On Thu, Dec 20, 2012 at 06:13:54PM +0000, bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r@public.gmane.org wrote:
> --- Comment #1 from Andrew Perepechko <andrew_perepechko-qCPWdT176rRBDgjK7y7TUQ@public.gmane.org>  2012-12-20 18:13:53 ---
> Hm, actually ENODATA is an alias of ENOATTR defined in libattr header.

But that's:

 a) not how normal Posix errno values are supposed to work.  I
 b) limited to using xattr, whichle getxattr is also exposed by glibc
 directly.

This really needs an explanation in the NOTES section, I'll see if I can
come up with someting useful.
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[Bug 51871] getxattr() man page wrongly refers to ENOATTR

[bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r]

https://bugzilla.kernel.org/show_bug.cgi?id=51871





--- Comment #2 from Anonymous Emailer <anonymous-ztI5WcYan/vQLgFONoPN62D2FQJk+8+b@public.gmane.org>  2012-12-22 08:19:28 ---
Reply-To: hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org

On Thu, Dec 20, 2012 at 06:13:54PM +0000, bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r@public.gmane.org
wrote:
> --- Comment #1 from Andrew Perepechko <andrew_perepechko-qCPWdT176rRBDgjK7y7TUQ@public.gmane.org>  2012-12-20 18:13:53 ---
> Hm, actually ENODATA is an alias of ENOATTR defined in libattr header.

But that's:

 a) not how normal Posix errno values are supposed to work.  I
 b) limited to using xattr, whichle getxattr is also exposed by glibc
 directly.

This really needs an explanation in the NOTES section, I'll see if I can
come up with someting useful.

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[Bug 51871] getxattr() man page wrongly refers to ENOATTR

[bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r]

https://bugzilla.kernel.org/show_bug.cgi?id=51871


Michael Kerrisk <mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
         Resolution|INVALID                     |CODE_FIX




--- Comment #3 from Michael Kerrisk <mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>  2013-01-18 23:00:47 ---
Andrew, (and Christoph),

Others have also noted this point. For each of the relevant pages, I've simply
added the text: "(ENOATTR is defined to be a synonym for ENODATA in
<attr/xattr.h>.)"

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[Bug 51871] getxattr() man page wrongly refers to ENOATTR

[bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r]

https://bugzilla.kernel.org/show_bug.cgi?id=51871





--- Comment #4 from Andrew Perepechko <andrew_perepechko-qCPWdT176rRBDgjK7y7TUQ@public.gmane.org>  2013-01-18 23:04:33 ---
Thanks, Michael and Christoph!

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