NAME
fdetach() — detach a name from a STREAMS file descriptor
SYNOPSIS
#include <stropts.h>
int fdetach(const char *path);
DESCRIPTION
The
fdetach()
function detaches a file
descriptor from a name in the file system designated by
path.
path
specifies the path name of an existing object in the file system
name space that was previously attached (see
fattach(3C)).
As a result of the
fdetach()
operation, the node's status and permissions return to the state prior
to the file attaching to the node. Any later operations on
path
will affect only the file system node and not the attached file.
Security Restrictions
The
fdetach()
function is restricted to superusers, or users with the
OWNER
privilege, or those who own
path
and have write permission.
In addition to having the
OWNER
privilege,
DACREAD
or
DACWRITE
privileges may also be required.
See
privileges(5)
for more information about privileged access on systems that support
fine-grained privileges.
RETURN VALUE
Upon successful completion, the
fdetach()
function returns a
value of 0 (zero). Otherwise, it returns a value of -1 is returned, and
errno
is set to indicate the error.
ERRORS
If any of the following conditions occurs, the
fdetach()
function sets
errno
to the value that corresponds to the condition.
- EFAULT
The
path
parameter points outside the process' allocated address space.
- EACCES
The user does not have the correct permission to access the file.
See the
Security Restrictions
section.
- EINVAL
The object pointed to by the
path
parameter
is not fattached to a
STREAMS
device or pipe.
- ELOOP
When
path
was translated, too many symbolic links were found.
- ENOENT
The
path
parameter points to a path name that does not exist.
- ENOTDIR
The directory portion of the
path
parameter does not exist.
- ENAMETOOLONG
The size of a path name component is longer than
NAME_MAX
when
_POSIX_NO_TRUNC
is in effect, or the path name length is longer
than
PATH_MAX.
- EPERM
The current effective user ID is not the owner of the existing object
specified by the
path
parameter, or
the current effective user ID does not specify a
user with the correct permissions.
STANDARDS CONFORMANCE
fdetach(): SVID3
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