1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2001 Robert N. M. Watson
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28/*
29 * TrustedBSD: Utility functions for extended attributes.
30 */
31
32#include <sys/cdefs.h>
33__FBSDID("$FreeBSD$");
34
35#include <sys/types.h>
36#include <sys/extattr.h>
37
38#include <errno.h>
39#include <libutil.h>
40#include <string.h>
41
42int
43extattr_namespace_to_string(int attrnamespace, char **string)
44{
45
46	switch(attrnamespace) {
47	case EXTATTR_NAMESPACE_USER:
48		if (string != NULL)
49			*string = strdup(EXTATTR_NAMESPACE_USER_STRING);
50		return (0);
51
52	case EXTATTR_NAMESPACE_SYSTEM:
53		if (string != NULL)
54			*string = strdup(EXTATTR_NAMESPACE_SYSTEM_STRING);
55		return (0);
56
57	default:
58		errno = EINVAL;
59		return (-1);
60	}
61}
62
63int
64extattr_string_to_namespace(const char *string, int *attrnamespace)
65{
66
67	if (!strcmp(string, EXTATTR_NAMESPACE_USER_STRING)) {
68		if (attrnamespace != NULL)
69			*attrnamespace = EXTATTR_NAMESPACE_USER;
70		return (0);
71	} else if (!strcmp(string, EXTATTR_NAMESPACE_SYSTEM_STRING)) {
72		if (attrnamespace != NULL)
73			*attrnamespace = EXTATTR_NAMESPACE_SYSTEM;
74		return (0);
75	} else {
76		errno = EINVAL;
77		return (-1);
78	}
79}
80