1/*
2  File: acl_free.c
3
4  Copyright (C) 1999, 2000
5  Andreas Gruenbacher <a.gruenbacher@computer.org>
6
7  This program is free software; you can redistribute it and/or
8  modify it under the terms of the GNU Library General Public
9  License as published by the Free Software Foundation; either
10  version 2 of the License, or (at your option) any later version.
11
12  This program is distributed in the hope that it will be useful,
13  but WITHOUT ANY WARRANTY; without even the implied warranty of
14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  Library General Public License for more details.
16
17  You should have received a copy of the GNU Library General Public
18  License along with this library; if not, write to the Free Software
19  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20*/
21
22#include "libacl.h"
23
24
25void
26__acl_free_acl_obj(acl_obj *acl_obj_p)
27{
28	acl_entry_obj *entry_obj_p;
29	while (acl_obj_p->anext != (acl_entry_obj *)acl_obj_p) {
30		entry_obj_p = acl_obj_p->anext;
31		acl_obj_p->anext = acl_obj_p->anext->enext;
32		free_obj_p(entry_obj_p);
33	}
34	free(acl_obj_p->aprealloc);
35	free_obj_p(acl_obj_p);
36}
37
38
39/* 23.4.12 */
40int
41acl_free(void *obj_p)
42{
43	obj_prefix *int_p = ((obj_prefix *)obj_p)-1;
44	if (!obj_p || !int_p) {
45		errno = EINVAL;
46		return -1;
47	}
48
49
50	switch(int_p->p_magic) {
51		case acl_MAGIC:
52			__acl_free_acl_obj((acl_obj *)int_p);
53			return 0;
54		case qualifier_MAGIC:
55		case string_MAGIC:
56			free_obj_p(int_p);
57			return 0;
58		case acl_entry_MAGIC:
59		case acl_permset_MAGIC:
60#ifdef LIBACL_DEBUG
61			fprintf(stderr, "object (magic=0x%X) "
62			        "at %p cannot be freed\n",
63				int_p->p_magic, int_p);
64#endif
65			break;
66		default:
67#ifdef LIBACL_DEBUG
68			fprintf(stderr, "invalid object (magic=0x%X) "
69			        "at %p\n", int_p->p_magic, int_p);
70#endif
71			break;
72	}
73	errno = EINVAL;
74	return -1;
75}
76
77