/* Authors: Jason Tang <jtang@tresys.com>

 *

 * Copyright (C) 2005 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

 */

#include <sepol/policydb/policydb.h>

#include <sepol/policydb/constraint.h>

#include <sepol/policydb/expand.h>

#include <sepol/policydb/flask_types.h>

#include <assert.h>

#include <stdlib.h>

int constraint_expr_init(constraint_expr_t * expr)

{

  memset(expr, 0, sizeof(*expr));

  ebitmap_init(&expr->names);

  if ((expr->type_names = malloc(sizeof(*expr->type_names))) == NULL) {

    return -1;

  }

  type_set_init(expr->type_names);

  return 0;

}

void constraint_expr_destroy(constraint_expr_t * expr)

{

  constraint_expr_t *next;

  while (expr != NULL) {

    next = expr->next;

    ebitmap_destroy(&expr->names);

    type_set_destroy(expr->type_names);

    free(expr->type_names);

    free(expr);

    expr = next;

  }

}