1.\"-
2.\" Copyright (c) 2008, 2009 Edward Tomasz Napierala
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5.\" This software was developed by Robert Watson for the TrustedBSD Project.
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28.\" $FreeBSD$
29.\"
30.Dd November 12, 2013
31.Dt ACL_STRIP_NP 3
32.Os
33.Sh NAME
34.Nm acl_is_trivial_np
35.Nd determine whether ACL is trivial
36.Sh LIBRARY
37.Lb libc
38.Sh SYNOPSIS
39.In sys/types.h
40.In sys/acl.h
41.Ft int
42.Fn acl_is_trivial_np "const acl_t aclp" "int *trivialp"
43.Sh DESCRIPTION
44The
45.Fn acl_is_trivial
46function determines whether the ACL pointed to by the argument
47.Va acl
48is trivial.
49Upon successful completion, the location referred to by the argument
50.Fa trivialp
51will be set to 1, if the ACL
52.Fa aclp
53points to is trivial, or 0 if it's not.
54.Pp
55ACL is trivial if it can be fully expressed as a file mode without losing
56any access rules.
57For POSIX.1e ACLs, ACL is trivial if it has the three required entries,
58one for owner, one for owning group, and one for other.
59For NFSv4 ACLs, ACL is trivial if it is identical to the ACL generated by
60.Fn acl_strip_np 3 .
61Files that have non-trivial ACL have a plus sign appended after mode bits
62in "ls -l" output.
63.Sh RETURN VALUES
64.Rv -std acl_get_tag_type
65.Sh SEE ALSO
66.Xr acl 3 ,
67.Xr posix1e 3
68.Sh STANDARDS
69POSIX.1e is described in IEEE POSIX.1e draft 17.
70Discussion
71of the draft continues on the cross-platform POSIX.1e implementation
72mailing list.
73To join this list, see the
74.Fx
75POSIX.1e implementation
76page for more information.
77.Sh HISTORY
78POSIX.1e support was introduced in
79.Fx 4.0 .
80The
81.Fn acl_is_trivial_np
82function was added in
83.Fx 8.0 .
84.Sh AUTHORS
85.An Edward Tomasz Napierala Aq Mt trasz@FreeBSD.org
86