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+.\"-
+.\" Copyright (c) 2008, 2009 Edward Tomasz Napierala
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 June 25, 2009
+.Dt ACL_GET_BRAND_NP 3
+.Os
+.Sh NAME
+.Nm acl_get_brand_np
+.Nd retrieve the ACL brand from an ACL entry
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/acl.h
+.Ft int
+.Fn acl_get_brand_np "acl_t acl" "int *brand_p"
+.Sh DESCRIPTION
+The
+.Fn acl_get_brand_np
+function
+is a non-portable call that returns the ACL brand for the ACL
+.Fa acl .
+Upon successful completion, the location referred to by the argument
+.Fa brand_p
+will be set to the ACL brand of the ACL
+.Fa acl .
+.Pp
+Branding is an internal mechanism intended to prevent mixing POSIX.1e
+and NFSv4 entries by mistake.
+It's also used by the libc to determine how to print out the ACL.
+The first call to function that is specific for one particular brand - POSIX.1e
+or NFSv4 - "brands" the ACL.
+After that, calling function specific to another brand will result in error.
+.Sh RETURN VALUES
+.Rv -std acl_get_brand_np
+.Sh ERRORS
+The
+.Fn acl_get_brand_np
+function fails if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+Argument
+.Fa acl
+does not point to a valid ACL.
+.El
+.Sh SEE ALSO
+.Xr acl 3 ,
+.Xr posix1e 3
+.Sh STANDARDS
+POSIX.1e is described in IEEE POSIX.1e draft 17.
+.Sh HISTORY
+POSIX.1e support was introduced in
+.Fx 4.0 .
+The
+.Fn acl_get_brand_np
+function was added in
+.Fx 8.0 .
+.Sh AUTHORS
+The
+.Fn acl_get_brand_np
+function was written by
+.An Edward Tomasz Napierala Aq trasz@FreeBSD.org .