.\"-
.\" Copyright (c) 2001 Chris D. Faulhaber
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.\" $FreeBSD: src/lib/libc/posix1e/acl_add_perm.3,v 1.6 2002/12/18 12:45:09 ru Exp $
.\"
.Dd March 10, 2001
.Dt ACL_ADD_PERM 3
.Os
.Sh NAME
.Nm acl_add_perm
.Nd add permissions to a permission set
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In sys/types.h
.In sys/acl.h
.Ft int
.Fn acl_add_perm "acl_permset_t permset_d" "acl_perm_t perm"
.Sh DESCRIPTION
The
.Fn acl_add_perm
function
is a POSIX.1e call that adds the permission contained in
.Fa perm
to the permission set
.Fa permset_d .
.Pp
Note: it is not considered an error to attempt to add permissions
that already exist in the permission set.
.Sh RETURN VALUES
.Rv -std acl_add_perm
.Sh ERRORS
The
.Fn acl_add_perm
function fails if:
.Bl -tag -width Er
.It Bq Er EINVAL
Argument
.Fa permset_d
is not a valid descriptor for a permission set within an ACL entry.
Argument
.Fa perm
does not contain a valid
.Vt acl_perm_t
value.
.El
.Sh SEE ALSO
.Xr acl 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 AUTHORS
.An Michael Smith
.An Chris D Fulhaber