constraint.c revision 255e72915d4cbddceb435e13d81601755714e9f3 
1/* Authors: Jason Tang <jtang@tresys.com>
2 *
3 * Copyright (C) 2005 Tresys Technology, LLC
4 *
5 *  This library is free software; you can redistribute it and/or
6 *  modify it under the terms of the GNU Lesser General Public
7 *  License as published by the Free Software Foundation; either
8 *  version 2.1 of the License, or (at your option) any later version.
9 *
10 *  This library is distributed in the hope that it will be useful,
11 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 *  Lesser General Public License for more details.
14 *
15 *  You should have received a copy of the GNU Lesser General Public
16 *  License along with this library; if not, write to the Free Software
17 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
18 */
19
20#include <sepol/policydb/policydb.h>
21#include <sepol/policydb/constraint.h>
22#include <sepol/policydb/expand.h>
23#include <sepol/policydb/flask_types.h>
24
25#include <assert.h>
26#include <stdlib.h>
27
28int constraint_expr_init(constraint_expr_t * expr)
29{
30	memset(expr, 0, sizeof(*expr));
31	ebitmap_init(&expr->names);
32	if ((expr->type_names = malloc(sizeof(*expr->type_names))) == NULL) {
33		return -1;
34	}
35	type_set_init(expr->type_names);
36	return 0;
37}
38
39void constraint_expr_destroy(constraint_expr_t * expr)
40{
41	if (expr != NULL) {
42		ebitmap_destroy(&expr->names);
43		type_set_destroy(expr->type_names);
44		free(expr->type_names);
45		free(expr);
46	}
47}
48