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.\"-
.\" Copyright (c) 2001 Chris D. Faulhaber
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.\" $FreeBSD: release/9.1.0/lib/libc/posix1e/acl_get_perm_np.3 184607 2008-11-04 00:20:43Z imp $
.\"
.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 jedgar@fxp.org .