.\" Copyright (c) 2001 Networks Associates Technology, Inc.
.\" All rights reserved.
.\" 
.\" This software was developed for the FreeBSD Project by Chris
.\" Costello at Safeport Network Services and NAI Labs, the Security
.\" Research Division of Network Associates, Inc. under DARPA/SPAWAR
.\" contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS
.\" research program.
.\" 
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\" 3. The name of the author may not be used to endorse or promote
.\"    products derived from this software without specific prior written
.\"    permission.
.\" 
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\" 
.\" $FreeBSD$
.Dd December 21, 2001
.Dt MAC_GET 3
.Sh NAME
.Nm mac_get_file ,
.Nm mac_get_fd ,
.Nm mac_get_proc
.Nd get the label of a file, socket, socket peer or process
.Sh SYNOPSIS
.In sys/mac.h
.Ft mac_t
.Fn mac_get_file "const char *path_p"
.Ft mac_t
.Fn mac_get_fd "int fd"
.Ft mac_t
.Fn mac_get_proc
.Sh DESCRIPTION
The
.Fn mac_get_file
and
.Fn mac_get_fd
functions return the MAC label associated
with the file referenced by
the pathname pointed to by
.Fa path_p
or the file descriptor specified by
.Fa fd ,
respectively.  Note this function will
fail on socket descriptors.  For information on
getting MAC labels on socket descriptors see
.Xr getsockopt 2 .
The
.Fn mac_get_proc
function returns a MAC label associated
with the requesting process.
.Sh ERRORS
.Bl -tag -width Er
.It Bq Er EACCES
A component of
.Fa path_p
is not searchable,
or MAC read access to the file
is denied.
.It Bq Er ENAMETOOLONG
The pathname pointed to by
.Fa path_p
exceeds
.Dv PATH_MAX ,
or a component of the pathname exceeds
.Dv NAME_MAX .
.It Bq Er ENOENT
A component of
.Fa path_p
does not exist.
.It Bq Er ENOMEM
Insufficient memory is available
to allocate a new MAC label structure.
.It Bq Er ENOTDIR
A component of
.Fa path_p
is not a directory.
.El
.Sh SEE ALSO
.Xr mac 3 ,
.Xr mac_free 3 ,
.Xr mac_text 3 ,
.Xr mac_set 3
.Sh STANDARDS
POSIX.1e is described in IEEE POSIX.1e draft 17.
Discussion of the draft
continues on the cross-platform POSIX.1e implementation mailing list.
To join this list, see the
.Fx
POSIX.1e implementation page
for more information.