1.\" $NetBSD: acl_add_perm.3,v 1.2 2020/06/18 19:46:34 wiz Exp $ 2.\"- 3.\" Copyright (c) 2001 Chris D. Faulhaber 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 15.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18.\" ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 19.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25.\" SUCH DAMAGE. 26.\" 27.\" $FreeBSD: head/lib/libc/posix1e/acl_add_perm.3 267774 2014-06-23 08:25:03Z bapt $ 28.\" 29.Dd June 25, 2009 30.Dt ACL_ADD_PERM 3 31.Os 32.Sh NAME 33.Nm acl_add_perm 34.Nd add permissions to a permission set 35.Sh LIBRARY 36.Lb libc 37.Sh SYNOPSIS 38.In sys/types.h 39.In sys/acl.h 40.Ft int 41.Fn acl_add_perm "acl_permset_t permset_d" "acl_perm_t perm" 42.Sh DESCRIPTION 43The 44.Fn acl_add_perm 45function 46is a POSIX.1e call that adds the permission contained in 47.Fa perm 48to the permission set 49.Fa permset_d . 50.Pp 51Note: it is not considered an error to attempt to add permissions 52that already exist in the permission set. 53.Pp 54For POSIX.1e ACLs, valid values are: 55.Bl -column -offset 3n "ACL_WRITE_NAMED_ATTRS" 56.It ACL_EXECUTE Execute permission 57.It ACL_WRITE Write permission 58.It ACL_READ Read permission 59.El 60.Pp 61For NFSv4 ACLs, valid values are: 62.Bl -column -offset 3n "ACL_WRITE_NAMED_ATTRS" 63.It ACL_READ_DATA Ta "Read permission" 64.It ACL_LIST_DIRECTORY Ta "Same as ACL_READ_DATA" 65.It ACL_WRITE_DATA Ta "Write permission, or permission to create files" 66.It ACL_ADD_FILE Ta "Same as ACL_READ_DATA" 67.It ACL_APPEND_DATA Ta "Permission to create directories. Ignored for files" 68.It ACL_ADD_SUBDIRECTORY Ta "Same as ACL_APPEND_DATA" 69.It ACL_READ_NAMED_ATTRS Ta "Ignored" 70.It ACL_WRITE_NAMED_ATTRS Ta "Ignored" 71.It ACL_EXECUTE Ta "Execute permission" 72.It ACL_DELETE_CHILD Ta "Permission to delete files and subdirectories" 73.It ACL_READ_ATTRIBUTES Ta "Permission to read basic attributes" 74.It ACL_WRITE_ATTRIBUTES Ta "Permission to change basic attributes" 75.It ACL_DELETE Ta "Permission to delete the object this ACL is placed on" 76.It ACL_READ_ACL Ta "Permission to read ACL" 77.It ACL_WRITE_ACL Ta "Permission to change the ACL and file mode" 78.It ACL_SYNCHRONIZE Ta "Ignored" 79.El 80.Pp 81Calling 82.Fn acl_add_perm 83with 84.Fa perm 85equal to ACL_WRITE or ACL_READ brands the ACL as POSIX. 86Calling it with ACL_READ_DATA, ACL_LIST_DIRECTORY, ACL_WRITE_DATA, 87ACL_ADD_FILE, ACL_APPEND_DATA, ACL_ADD_SUBDIRECTORY, ACL_READ_NAMED_ATTRS, 88ACL_WRITE_NAMED_ATTRS, ACL_DELETE_CHILD, ACL_READ_ATTRIBUTES, 89ACL_WRITE_ATTRIBUTES, ACL_DELETE, ACL_READ_ACL, ACL_WRITE_ACL 90or ACL_SYNCHRONIZE brands the ACL as NFSv4. 91.Sh RETURN VALUES 92.Rv -std acl_add_perm 93.Sh ERRORS 94The 95.Fn acl_add_perm 96function fails if: 97.Bl -tag -width Er 98.It Bq Er EINVAL 99Argument 100.Fa permset_d 101is not a valid descriptor for a permission set within an ACL entry. 102Argument 103.Fa perm 104does not contain a valid 105.Vt acl_perm_t 106value. 107ACL is already branded differently. 108.El 109.Sh SEE ALSO 110.Xr acl 3 , 111.Xr acl_clear_perms 3 , 112.Xr acl_delete_perm 3 , 113.Xr acl_get_brand_np 3 , 114.Xr acl_get_permset 3 , 115.Xr acl_set_permset 3 , 116.Xr posix1e 3 117.Sh STANDARDS 118POSIX.1e is described in IEEE POSIX.1e draft 17. 119.Sh HISTORY 120POSIX.1e support was introduced in 121.Fx 4.0 . 122The 123.Fn acl_add_perm 124function was added in 125.Fx 5.0 . 126.Sh AUTHORS 127The 128.Fn acl_add_perm 129function was written by 130.An Chris D. Faulhaber Aq Mt jedgar@fxp.org . 131