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ATTR_REMOVE
Section: XFS Compatibility API (3)
Updated: Extended Attributes
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NAME
attr_remove, attr_removef - remove a user attribute of a filesystem object
C SYNOPSIS
#include <attr/attributes.h>
int attr_remove (const char *path, const char *attrname, int flags);
int attr_removef (int fd, const char *attrname, int flags);
[
DESCRIPTION
]
The
attr_remove
and
attr_removef
functions provide a way to remove previously created attributes
from filesystem objects.
Path
points to a path name for a filesystem object, and
fd
refers to the file descriptor associated with a file.
If the attribute
attrname
exists, the attribute name and value will be removed from the
fileystem object.
The
flags
argument can contain the following symbols bitwise OR'ed together:
- ATTR_ROOT
-
Look for
attrname
in the
root
address space, not in the
user
address space.
(limited to use by super-user only)
- ATTR_DONTFOLLOW
-
Do not follow symbolic links when resolving a
path
on an
attr_remove
function call.
The default is to follow symbolic links.
attr_remove
will fail if one or more of the following are true:
- [ENOATTR]
-
The attribute name given is not associated with the indicated
filesystem object.
- [ENOENT]
-
The named file does not exist.
- [EPERM]
-
The effective user
ID
does not match the owner of the file
and the effective user
ID
is not super-user.
- [ENOTDIR]
-
A component of the
path prefix
is not a directory.
- [EACCES]
-
Search permission is denied on a
component of the
path prefix.
- [EINVAL]
-
A bit was set in the
flag
argument that is not defined for this system call.
- [EFAULT]
-
Path
points outside the allocated address space of the process.
- [ELOOP]
-
A path name lookup involved too many symbolic links.
- [ENAMETOOLONG]
-
The length of
path
exceeds
{MAXPATHLEN},
or a pathname component is longer than
{MAXNAMELEN}.
attr_removef
will fail if:
- [ENOATTR]
-
The attribute name given is not associated with the indicated
filesystem object.
- [EINVAL]
-
A bit was set in the
flag
argument that is not defined for this system call,
or
fd
refers to a socket, not a file.
- [EFAULT]
-
Attrname
points outside the allocated address space of the process.
- [EBADF]
-
Fd
does not refer to a valid descriptor.
DIAGNOSTICS
On success, zero is returned. On error, -1 is returned, and
errno
is set appropriately.
SEE ALSO
attr(1),
attr_get(3),
attr_list(3),
attr_multi(3),
and
attr_set(3).
Index
- NAME
-
- C SYNOPSIS
-
- DESCRIPTION
-
- DIAGNOSTICS
-
- SEE ALSO
-
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