7bb862d793
support functions:
cap_subset_np() - Is cap1 a subset of cap2
cap_equal_np() - Is cap1 equal to cap2
o Introduce implementations of POSIX.1e capability support functions:
cap_copy_ext() - Externalize capability
cap_copy_int() - Internalize capability
cap_size() - Determine size required for cap_copy_ext()
Submitted by: tmm
Obtained from: TrustedBSD Project
51 lines
1.8 KiB
C
51 lines
1.8 KiB
C
/*
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* Copyright 2001 by Thomas Moestl <tmm@FreeBSD.org>. 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 AUTHORS ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* Capabiltiy comparison functions cap_subset, cap_equal.
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*/
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/* define this to pull in the cap macros the kernel uses */
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#include <sys/types.h>
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#define _CAPABILITY_NEEDMACROS
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#include <sys/capability.h>
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#undef _CAPABILITY_NEEDMACROS
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int
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cap_subset_np(cap_t c1, cap_t c2)
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{
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return CAP_SUBSET(*c1, *c2);
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}
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int
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cap_equal_np(cap_t c1, cap_t c2)
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{
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return c1->c_effective == c2->c_effective &&
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c1->c_permitted == c2->c_permitted &&
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c1->c_inheritable == c2->c_inheritable;
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}
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