1.\"- 2.\" Copyright (c) 2008, 2009 Edward Tomasz Napierala 3.\" 4.\" This software was developed by Robert Watson for the TrustedBSD Project. 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 THE 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.Dd June 19, 2023 28.Dt ACL_IS_TRIVIAL_NP 3 29.Os 30.Sh NAME 31.Nm acl_is_trivial_np 32.Nd determine whether ACL is trivial 33.Sh LIBRARY 34.Lb libc 35.Sh SYNOPSIS 36.In sys/types.h 37.In sys/acl.h 38.Ft int 39.Fn acl_is_trivial_np "const acl_t aclp" "int *trivialp" 40.Sh DESCRIPTION 41The 42.Fn acl_is_trivial_np 43function determines whether the ACL pointed to by the argument 44.Va acl 45is trivial. 46Upon successful completion, the location referred to by the argument 47.Fa trivialp 48will be set to 1, if the ACL 49.Fa aclp 50points to is trivial, or 0 if it's not. 51.Pp 52ACL is trivial if it can be fully expressed as a file mode without losing 53any access rules. 54For POSIX.1e ACLs, ACL is trivial if it has the three required entries, 55one for owner, one for owning group, and one for other. 56For NFSv4 ACLs, ACL is trivial if it is identical to the ACL generated by 57.Xr acl_strip_np 3 . 58Files that have non-trivial ACL have a plus sign appended after mode bits 59in "ls -l" output. 60.Sh RETURN VALUES 61.Rv -std acl_is_trivial_np 62.Sh SEE ALSO 63.Xr acl 3 , 64.Xr acl_strip_np 3 , 65.Xr posix1e 3 66.Sh STANDARDS 67POSIX.1e is described in IEEE POSIX.1e draft 17. 68Discussion 69of the draft continues on the cross-platform POSIX.1e implementation 70mailing list. 71To join this list, see the 72.Fx 73POSIX.1e implementation 74page for more information. 75.Sh HISTORY 76POSIX.1e support was introduced in 77.Fx 4.0 . 78The 79.Fn acl_is_trivial_np 80function was added in 81.Fx 8.0 . 82.Sh AUTHORS 83.An Edward Tomasz Napierala Aq Mt trasz@FreeBSD.org 84