acl_init.c revision 56625 
1/*-
2 * Copyright (c) 1999 Robert N. M. Watson
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 *	$FreeBSD: head/lib/libc/posix1e/acl_init.c 56625 2000-01-26 04:19:38Z rwatson $
27 */
28/*
29 * acl_init -- return a fresh acl structure
30 * acl_dup -- duplicate an acl and return the new copy
31 */
32
33#include <sys/types.h>
34#include <sys/acl.h>
35#include <errno.h>
36#include <stdlib.h>
37#include <string.h>
38
39acl_t
40acl_init(int count)
41{
42	struct acl	*acl;
43
44	if (count > ACL_MAX_ENTRIES) {
45		errno = ENOMEM;
46		return (0);
47	}
48
49	acl = (struct acl *) malloc(sizeof(struct acl));
50	bzero(acl, sizeof(struct acl));
51
52	return (acl);
53}
54
55acl_t
56acl_dup(acl_t acl)
57{
58	struct acl	*acl_new;
59
60	acl_new = acl_init(ACL_MAX_ENTRIES);
61	if (!acl_new)
62		return(NULL);
63
64	*acl_new = *acl;
65
66	return(acl_new);
67}
68