1/*
2  File: acl_copy_int.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
25/* 23.4.6 */
26acl_t
27acl_copy_int(const void *buf_p)
28{
29	const struct __acl *ext_acl = (struct __acl *)buf_p;
30	const struct __acl_entry *ent_p = ext_acl->x_entries, *end_p;
31	size_t size = ext_acl ? ext_acl->x_size : 0;
32	int entries;
33	acl_obj *acl_obj_p;
34	acl_entry_obj *entry_obj_p;
35
36	if (!ext_acl || size < sizeof(struct __acl)) {
37		errno = EINVAL;
38		return NULL;
39	}
40	size -= sizeof(struct __acl);
41	if (size % sizeof(struct __acl_entry)) {
42		errno = EINVAL;
43		return NULL;
44	}
45	entries = size / sizeof(struct __acl_entry);
46	acl_obj_p = __acl_init_obj(entries);
47	if (acl_obj_p == NULL)
48		goto fail;
49	end_p = ext_acl->x_entries + entries;
50	for(; ent_p != end_p; ent_p++) {
51		entry_obj_p = __acl_create_entry_obj(acl_obj_p);
52		if (!entry_obj_p)
53			goto fail;
54		/* XXX Convert to machine endianness */
55		entry_obj_p->eentry = *ent_p;
56	}
57	if (__acl_reorder_obj_p(acl_obj_p))
58		goto fail;
59	return int2ext(acl_obj_p);
60
61fail:
62	__acl_free_acl_obj(acl_obj_p);
63	return NULL;
64}
65
66