87 lines
2.7 KiB
Groff
87 lines
2.7 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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.\" 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 June 25, 2009
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.Dt ACL_GET_BRAND_NP 3
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.Os
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.Sh NAME
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.Nm acl_get_brand_np
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.Nd retrieve the ACL brand from an ACL entry
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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_get_brand_np "acl_t acl" "int *brand_p"
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.Sh DESCRIPTION
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The
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.Fn acl_get_brand_np
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function
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is a non-portable call that returns the ACL brand for the ACL
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.Fa acl .
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Upon successful completion, the location referred to by the argument
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.Fa brand_p
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will be set to the ACL brand of the ACL
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.Fa acl .
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.Pp
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Branding is an internal mechanism intended to prevent mixing POSIX.1e
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and NFSv4 entries by mistake.
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It's also used by the libc to determine how to print out the ACL.
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The first call to function that is specific for one particular brand - POSIX.1e
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or NFSv4 - "brands" the ACL.
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After that, calling function specific to another brand will result in error.
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.Sh RETURN VALUES
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.Rv -std acl_get_brand_np
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.Sh ERRORS
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The
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.Fn acl_get_brand_np
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function fails if:
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.Bl -tag -width Er
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.It Bq Er EINVAL
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Argument
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.Fa acl
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does not point to a valid ACL.
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.El
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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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.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_get_brand_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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The
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.Fn acl_get_brand_np
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function was written by
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.An Edward Tomasz Napierala Aq trasz@FreeBSD.org .
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