a164074fc4
PR: kern/176054 Submitted by: Christoph Mallon <christoph.mallon@gmx.de> MFC after: 3 days
87 lines
2.9 KiB
Groff
87 lines
2.9 KiB
Groff
.\"-
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.\" Copyright (c) 2008, 2009 Edward Tomasz Napierala
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.\" All rights reserved.
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.\"
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.\" This software was developed by Robert Watson for the TrustedBSD Project.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd December 13, 2010
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.Dt ACL_STRIP_NP 3
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.Os
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.Sh NAME
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.Nm acl_is_trivial_np
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.Nd determine whether ACL is trivial
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.Sh LIBRARY
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.Lb libc
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.Sh SYNOPSIS
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.In sys/types.h
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.In sys/acl.h
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.Ft int
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.Fn acl_is_trivial_np "const acl_t aclp" "int *trivialp"
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.Sh DESCRIPTION
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The
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.Fn acl_is_trivial
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function determines whether the ACL pointed to by the argument
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.Va acl
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is trivial.
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Upon successful completion, the location referred to by the argument
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.Fa trivialp
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will be set to 1, if the ACL
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.Fa aclp
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points to is trivial, or 0 if it's not.
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.Pp
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ACL is trivial if it can be fully expressed as a file mode without losing
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any access rules.
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For POSIX.1e ACLs, ACL is trivial if it has the three required entries,
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one for owner, one for owning group, and one for other.
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For NFSv4 ACLs, ACL is trivial if is identical to the ACL generated by
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.Fn acl_strip_np 3
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from the file mode.
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Files that have non-trivial ACL have a plus sign appended after mode bits
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in "ls -l" output.
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.Sh RETURN VALUES
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.Rv -std acl_get_tag_type
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.Sh SEE ALSO
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.Xr acl 3 ,
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.Xr posix1e 3
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.Sh STANDARDS
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POSIX.1e is described in IEEE POSIX.1e draft 17.
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Discussion
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of the draft continues on the cross-platform POSIX.1e implementation
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mailing list.
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To join this list, see the
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.Fx
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POSIX.1e implementation
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page for more information.
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.Sh HISTORY
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POSIX.1e support was introduced in
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.Fx 4.0 .
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The
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.Fn acl_is_trivial_np
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function was added in
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.Fx 8.0 .
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.Sh AUTHORS
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.An Edward Tomasz Napierala Aq trasz@FreeBSD.org .
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