55 lines
2.3 KiB
C
55 lines
2.3 KiB
C
/*
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* Copyright (c) 2012 William Pitcock <nenolod@dereferenced.org>.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice is present in all copies.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR 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)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __CAPABILITY_H__
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#define __CAPABILITY_H__
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struct CapabilityIndex {
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const char *name;
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struct Dictionary *cap_dict;
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unsigned int highest_bit;
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rb_dlink_node node;
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};
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#define CAP_ORPHANED 0x1
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#define CAP_REQUIRED 0x2
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struct CapabilityEntry {
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const char *cap;
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unsigned int value;
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unsigned int flags;
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void *ownerdata;
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};
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extern struct CapabilityEntry *capability_find(struct CapabilityIndex *idx, const char *cap);
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extern unsigned int capability_get(struct CapabilityIndex *idx, const char *cap, void **ownerdata);
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extern unsigned int capability_put(struct CapabilityIndex *idx, const char *cap, void *ownerdata);
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extern unsigned int capability_put_anonymous(struct CapabilityIndex *idx);
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extern void capability_orphan(struct CapabilityIndex *idx, const char *cap);
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extern void capability_require(struct CapabilityIndex *idx, const char *cap);
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extern struct CapabilityIndex *capability_index_create(const char *name);
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extern void capability_index_destroy(struct CapabilityIndex *);
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extern const char *capability_index_list(struct CapabilityIndex *, unsigned int capability_mask);
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extern unsigned int capability_index_mask(struct CapabilityIndex *);
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extern unsigned int capability_index_get_required(struct CapabilityIndex *);
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extern void capability_index_stats(void (*cb)(const char *line, void *privdata), void *privdata);
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#endif
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