1.\" Copyright (c) 2001 Networks Associates Technology, Inc. 2.\" All rights reserved. 3.\" 4.\" This software was developed for the FreeBSD Project by Chris 5.\" Costello at Safeport Network Services and NAI Labs, the Security 6.\" Research Division of Network Associates, Inc. under DARPA/SPAWAR 7.\" contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS 8.\" research program. 9.\" 10.\" Redistribution and use in source and binary forms, with or without 11.\" modification, are permitted provided that the following conditions 12.\" are met: 13.\" 1. Redistributions of source code must retain the above copyright 14.\" notice, this list of conditions and the following disclaimer. 15.\" 2. Redistributions in binary form must reproduce the above copyright 16.\" notice, this list of conditions and the following disclaimer in the 17.\" documentation and/or other materials provided with the distribution. 18.\" 3. The name of the author may not be used to endorse or promote 19.\" products derived from this software without specific prior written 20.\" permission. 21.\" 22.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 23.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 26.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32.\" SUCH DAMAGE. 33.\" 34.\" $FreeBSD$ 35.Dd December 21, 2001 36.Dt MAC_TEXT 3 37.Sh NAME 38.Nm mac_from_text , 39.Nm mac_to_text 40.Nd convert MAC label to/from text representation 41.Sh LIBRARY 42.Lb libc 43.Sh SYNOPSIS 44.In sys/mac.h 45.Ft mac_t 46.Fn mac_from_text "const char *text_p" 47.Ft "char *" 48.Fn mac_to_text "mac_t label" "size_t *len_p" 49.Sh DESCRIPTION 50The 51.Fn mac_from_text 52function converts the text representation of a label 53into a 54.Vt mac_t , 55which must later be freed with 56.Xr mac_free . 57The 58.Fn mac_to_text 59function returns 60the text representation of 61.Fa label 62and sets 63.Fa *len_p 64to the length of the returned string. 65.Pp 66Refer to 67.Xr maclabel 7 68for the MAC label format. 69.Sh RETURN VALUES 70The 71.Fn mac_from_text 72function returns a valid 73.Vt mac_t 74equivalent to 75the MAC label described in 76.Fa text_p 77upon success, and 78.Dv NULL 79upon failure, setting 80.Va errno 81to indicate the error. 82.Pp 83The 84.Fn mac_to_text 85function returns a string 86containing the text representation of 87.Fa label 88upon success, and 89.Dv NULL 90upon failure, setting 91.Va errno 92to indicate the error. 93.Sh COMPATIBILITY 94POSIX.1e does not define 95a text format for text representations 96of MAC labels. 97.Sh ERRORS 98.Bl -tag -width Er 99.It Bq Er EINVAL 100An invalid policy or qualifier 101was specified in 102.Fa text_p , 103or an invalid MAC label 104was specified in 105.Fa label . 106.It Bq Er ENOMEM 107Insufficient memory was available 108to allocate internal storage. 109.El 110.Sh SEE ALSO 111.Xr mac 3 , 112.Xr mac_free 3 , 113.Xr mac_get 3 , 114.Xr mac_set 3 , 115.Xr maclabel 7 116.Sh STANDARDS 117POSIX.1e is described in IEEE POSIX.1e draft 17. 118Discussion of the draft 119continues on the cross-platform POSIX.1e implementation mailing list. 120To join this list, see the 121.Fx 122POSIX.1e implementation page 123for more information. 124