.\"-
.\" Copyright (c) 2001 Chris D. Faulhaber
.\" 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 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 April 10, 2001
.Dt ACL_GET_PERM_NP 3
.Os
.Sh NAME
.Nm acl_get_perm_np
.Nd "check if a permission is set in a permission set"
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In sys/types.h
.In sys/acl.h
.Ft int
.Fn acl_get_perm_np "acl_permset_t permset_d" "acl_perm_t perm"
.Sh DESCRIPTION
The
.Fn acl_get_perm_np
function
is a non-portable function that checks if a permission is set in
a permission set.
.Sh RETURN VALUES
If the permission in
.Fa perm
is set in the permission set
.Fa permset_d ,
a value of
1
is returned, otherwise a value of
0
is returned.
.Sh ERRORS
If any of the following conditions occur, the
.Fn acl_get_perm_np
function will return a value of
\-1
and set global variable
.Va errno
to the corresponding value:
.Bl -tag -width Er
.It Bq Er EINVAL
Argument
.Fa perm
does not contain a valid ACL permission or argument
.Fa permset_d
is not a valid ACL permset.
.El
.Sh SEE ALSO
.Xr acl 3 ,
.Xr acl_add_perm 3 ,
.Xr acl_clear_perms 3 ,
.Xr acl_delete_perm 3 ,
.Xr acl_get_permset 3 ,
.Xr acl_set_permset 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_perm_np
function was added in
.Fx 5.0 .
.Sh AUTHORS
The
.Fn acl_get_perm_np
function was written by
.An Chris D. Faulhaber Aq Mt jedgar@fxp.org .