1.\"-
2.\" Copyright (c) 2008, 2009 Edward Tomasz Napierala
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4.\" This software was developed by Robert Watson for the TrustedBSD Project.
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27.\" $FreeBSD$
28.\"
29.Dd November 12, 2013
30.Dt ACL_STRIP_NP 3
31.Os
32.Sh NAME
33.Nm acl_is_trivial_np
34.Nd determine whether ACL is trivial
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_is_trivial_np "const acl_t aclp" "int *trivialp"
42.Sh DESCRIPTION
43The
44.Fn acl_is_trivial
45function determines whether the ACL pointed to by the argument
46.Va acl
47is trivial.
48Upon successful completion, the location referred to by the argument
49.Fa trivialp
50will be set to 1, if the ACL
51.Fa aclp
52points to is trivial, or 0 if it's not.
53.Pp
54ACL is trivial if it can be fully expressed as a file mode without losing
55any access rules.
56For POSIX.1e ACLs, ACL is trivial if it has the three required entries,
57one for owner, one for owning group, and one for other.
58For NFSv4 ACLs, ACL is trivial if it is identical to the ACL generated by
59.Fn acl_strip_np 3 .
60Files that have non-trivial ACL have a plus sign appended after mode bits
61in "ls -l" output.
62.Sh RETURN VALUES
63.Rv -std acl_get_tag_type
64.Sh SEE ALSO
65.Xr acl 3 ,
66.Xr posix1e 3
67.Sh STANDARDS
68POSIX.1e is described in IEEE POSIX.1e draft 17.
69Discussion
70of the draft continues on the cross-platform POSIX.1e implementation
71mailing list.
72To join this list, see the
73.Fx
74POSIX.1e implementation
75page for more information.
76.Sh HISTORY
77POSIX.1e support was introduced in
78.Fx 4.0 .
79The
80.Fn acl_is_trivial_np
81function was added in
82.Fx 8.0 .
83.Sh AUTHORS
84.An Edward Tomasz Napierala Aq Mt trasz@FreeBSD.org
85