1 /* $NetBSD: extra.c,v 1.2 2017/01/28 21:31:45 christos Exp $ */
2
3 /*
4 * Copyright (c) 2003 - 2005 Kungliga Tekniska Högskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * All rights reserved.
7 *
8 * Portions Copyright (c) 2009 Apple Inc. All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 *
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 *
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 *
21 * 3. Neither the name of the Institute nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 */
37
38 #include "der_locl.h"
39 #include <krb5/heim_asn1.h>
40
41 __RCSID("$NetBSD: extra.c,v 1.2 2017/01/28 21:31:45 christos Exp $");
42
43 int
encode_heim_any(unsigned char * p,size_t len,const heim_any * data,size_t * size)44 encode_heim_any(unsigned char *p, size_t len,
45 const heim_any *data, size_t *size)
46 {
47 return der_put_octet_string (p, len, data, size);
48 }
49
50 int
decode_heim_any(const unsigned char * p,size_t len,heim_any * data,size_t * size)51 decode_heim_any(const unsigned char *p, size_t len,
52 heim_any *data, size_t *size)
53 {
54 size_t len_len, length, l;
55 Der_class thisclass;
56 Der_type thistype;
57 unsigned int thistag;
58 int e;
59
60 memset(data, 0, sizeof(*data));
61
62 e = der_get_tag (p, len, &thisclass, &thistype, &thistag, &l);
63 if (e) return e;
64 if (l > len)
65 return ASN1_OVERFLOW;
66 e = der_get_length(p + l, len - l, &length, &len_len);
67 if (e) return e;
68 if (length == ASN1_INDEFINITE) {
69 if (len < len_len + l)
70 return ASN1_OVERFLOW;
71 length = len - (len_len + l);
72 } else {
73 if (len < length + len_len + l)
74 return ASN1_OVERFLOW;
75 }
76
77 data->data = malloc(length + len_len + l);
78 if (data->data == NULL)
79 return ENOMEM;
80 data->length = length + len_len + l;
81 memcpy(data->data, p, length + len_len + l);
82
83 if (size)
84 *size = length + len_len + l;
85
86 return 0;
87 }
88
89 void
free_heim_any(heim_any * data)90 free_heim_any(heim_any *data)
91 {
92 der_free_octet_string(data);
93 }
94
95 size_t
length_heim_any(const heim_any * data)96 length_heim_any(const heim_any *data)
97 {
98 return data->length;
99 }
100
101 int
copy_heim_any(const heim_any * from,heim_any * to)102 copy_heim_any(const heim_any *from, heim_any *to)
103 {
104 return der_copy_octet_string(from, to);
105 }
106
107 int
encode_heim_any_set(unsigned char * p,size_t len,const heim_any_set * data,size_t * size)108 encode_heim_any_set(unsigned char *p, size_t len,
109 const heim_any_set *data, size_t *size)
110 {
111 return der_put_octet_string (p, len, data, size);
112 }
113
114 int
decode_heim_any_set(const unsigned char * p,size_t len,heim_any_set * data,size_t * size)115 decode_heim_any_set(const unsigned char *p, size_t len,
116 heim_any_set *data, size_t *size)
117 {
118 return der_get_octet_string(p, len, data, size);
119 }
120
121 void
free_heim_any_set(heim_any_set * data)122 free_heim_any_set(heim_any_set *data)
123 {
124 der_free_octet_string(data);
125 }
126
127 size_t
length_heim_any_set(const heim_any * data)128 length_heim_any_set(const heim_any *data)
129 {
130 return data->length;
131 }
132
133 int
copy_heim_any_set(const heim_any_set * from,heim_any_set * to)134 copy_heim_any_set(const heim_any_set *from, heim_any_set *to)
135 {
136 return der_copy_octet_string(from, to);
137 }
138
139 int
heim_any_cmp(const heim_any_set * p,const heim_any_set * q)140 heim_any_cmp(const heim_any_set *p, const heim_any_set *q)
141 {
142 return der_heim_octet_string_cmp(p, q);
143 }
144