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/**
* @file
* Defines the public interface for searching and iterating over the policy capabilities
*
* @author Steve Lawrence slawrence@tresys.com
*
* Copyright (C) 2006-2009 Tresys Technology, LLC
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef QPOL_POLCAP_QUERY_H
#define QPOL_POLCAP_QUERY_H
#ifdef __cplusplus
extern "C"
{
#endif
#include <stddef.h>
#include <stdint.h>
#include <qpol/iterator.h>
#include <qpol/policy.h>
typedef struct qpol_polcap qpol_polcap_t;
/**
* Get an iterator for the policay capabilities in a policy.
* @param policy The policy from which to create the iterator.
* @param iter Iterator over items of type qpol_isid_t returned.
* The caller is responsible for calling qpol_iterator_destroy
* to free memory used by this iterator.
* It is important to note that this iterator is only valid as long
* as the policy is unmodified.
* @return 0 on success and < 0 on failure; if the call fails,
* errno will be set and *iter will be NULL.
*/
extern int qpol_policy_get_polcap_iter(const qpol_policy_t *policy, qpol_iterator_t **iter);
/**
* Get the name which identifies a policy capability from its datum.
* @param policy The policy with which the policy capability is associated.
* @param datum Polcap datum for which to get the name. Must be non-NULL.
* @param name Pointer to the string in which to store the name.
* Must be non-NULL. The caller should not free the string.
* @return Returns 0 on success and < 0 on failure; if the call fails,
* errno will be set and *name will be NULL.
*/
extern int qpol_polcap_get_name(const qpol_policy_t *policy, const qpol_polcap_t *datum, const char **name);
#ifdef __cplusplus
}
#endif
#endif /* QPOL_POLCAP_QUERY_H */
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