1/*
2 * Copyright (c) 2012,2014 Apple Inc. All Rights Reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23
24
25#include <stdio.h>
26
27#include "utilities/SecCFRelease.h"
28#include "utilities/der_plist.h"
29#include "utilities/der_plist_internal.h"
30
31#include <corecrypto/ccder.h>
32#include <CoreFoundation/CoreFoundation.h>
33
34
35const uint8_t* der_decode_boolean(CFAllocatorRef allocator, CFOptionFlags mutability,
36                                  CFBooleanRef* boolean, CFErrorRef *error,
37                                  const uint8_t* der, const uint8_t *der_end)
38{
39    if (NULL == der)
40        return NULL;
41
42    size_t payload_size = 0;
43    const uint8_t *payload = ccder_decode_tl(CCDER_BOOLEAN, &payload_size, der, der_end);
44
45    if (NULL == payload || (der_end - payload) < payload_size || payload_size != 1) {
46        SecCFDERCreateError(kSecDERErrorUnknownEncoding, CFSTR("Unknown boolean encoding"), NULL, error);
47        return NULL;
48    }
49
50    *boolean = *payload ? kCFBooleanTrue : kCFBooleanFalse;
51
52    return payload + payload_size;
53}
54
55
56size_t der_sizeof_boolean(CFBooleanRef data __unused, CFErrorRef *error)
57{
58    return ccder_sizeof(CCDER_BOOLEAN, 1);
59}
60
61
62uint8_t* der_encode_boolean(CFBooleanRef boolean, CFErrorRef *error,
63                            const uint8_t *der, uint8_t *der_end)
64{
65    uint8_t value = CFBooleanGetValue(boolean);
66
67    return ccder_encode_tl(CCDER_BOOLEAN, 1, der,
68           ccder_encode_body(1, &value, der, der_end));
69
70}
71