From: DENIEL Philippe <philippe.deniel@CEA.FR>
To: xfs@oss.sgi.com
Subject: xfsprogs/libhandle : How to get the handle for a symbolic link ?
Date: Tue, 01 Jun 2010 13:48:22 +0200 [thread overview]
Message-ID: <4C04F386.908@cea.fr> (raw)
Hi,
I am currently developing a user space nfs server with various backends.
One of this backend module use xfsprogss's libhandle to implement XFS
support. I could do almost everything with open_by_handle and
fd_to_handle, used jointly with ATFILE_SOURCE functions, but I do have a
problem with symbolic links. To build an xfs object's handle, I get its
parent handle (now problem to this) then I call "openat" to get the fd
to the object before calling fd_to_handle. This works ok, but not for
symbolic link : the openat with follow the link. I added the O_NOFOLLOW
flag to openat, but now openat return ELOOP instead.
I know there is a readlink_by_handle function in libhandle. How could I
build the related handle to be used as argument to it (I mean, how to
build a handle that refers to the symlink itself, not the object it
points to).
Regards
Philippe
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next reply other threads:[~2010-06-01 11:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-01 11:48 DENIEL Philippe [this message]
2010-06-01 23:29 ` xfsprogs/libhandle : How to get the handle for a symbolic link ? Dave Chinner
2010-06-02 7:20 ` DENIEL Philippe
2010-06-02 10:06 ` Christoph Hellwig
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