mac_get.3 revision 107744
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: head/lib/libc/posix1e/mac_get.3 107744 2002-12-11 15:55:29Z ru $
.Dd December 21, 2001 .Dt MAC_GET 3 .Os .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 LIBRARY .Lb libc .Sh SYNOPSIS n 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 that 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 l -tag -width Er t Bq Er EACCES A component of .Fa path_p is not searchable, or MAC read access to the file is denied. t 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 . t Bq Er ENOENT A component of .Fa path_p does not exist. t Bq Er ENOMEM Insufficient memory is available to allocate a new MAC label structure. t 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_set 3 , .Xr mac_text 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.
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: head/lib/libc/posix1e/mac_get.3 107744 2002-12-11 15:55:29Z ru $
.Dd December 21, 2001 .Dt MAC_GET 3 .Os .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 LIBRARY .Lb libc .Sh SYNOPSIS n 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 that 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 l -tag -width Er t Bq Er EACCES A component of .Fa path_p is not searchable, or MAC read access to the file is denied. t 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 . t Bq Er ENOENT A component of .Fa path_p does not exist. t Bq Er ENOMEM Insufficient memory is available to allocate a new MAC label structure. t 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_set 3 , .Xr mac_text 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.