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
constraint_expr_init(constraint_expr_t * expr)28 int 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
constraint_expr_destroy(constraint_expr_t * expr)39 void constraint_expr_destroy(constraint_expr_t * expr)
40 {
41 constraint_expr_t *next;
42
43 while (expr != NULL) {
44 next = expr->next;
45 ebitmap_destroy(&expr->names);
46 type_set_destroy(expr->type_names);
47 free(expr->type_names);
48 free(expr);
49 expr = next;
50 }
51 }
52