/src/libressl/crypto/objects/obj_lib.c
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1 | | /* $OpenBSD: obj_lib.c,v 1.16 2022/01/07 11:13:54 tb Exp $ */ |
2 | | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
3 | | * All rights reserved. |
4 | | * |
5 | | * This package is an SSL implementation written |
6 | | * by Eric Young (eay@cryptsoft.com). |
7 | | * The implementation was written so as to conform with Netscapes SSL. |
8 | | * |
9 | | * This library is free for commercial and non-commercial use as long as |
10 | | * the following conditions are aheared to. The following conditions |
11 | | * apply to all code found in this distribution, be it the RC4, RSA, |
12 | | * lhash, DES, etc., code; not just the SSL code. The SSL documentation |
13 | | * included with this distribution is covered by the same copyright terms |
14 | | * except that the holder is Tim Hudson (tjh@cryptsoft.com). |
15 | | * |
16 | | * Copyright remains Eric Young's, and as such any Copyright notices in |
17 | | * the code are not to be removed. |
18 | | * If this package is used in a product, Eric Young should be given attribution |
19 | | * as the author of the parts of the library used. |
20 | | * This can be in the form of a textual message at program startup or |
21 | | * in documentation (online or textual) provided with the package. |
22 | | * |
23 | | * Redistribution and use in source and binary forms, with or without |
24 | | * modification, are permitted provided that the following conditions |
25 | | * are met: |
26 | | * 1. Redistributions of source code must retain the copyright |
27 | | * notice, this list of conditions and the following disclaimer. |
28 | | * 2. Redistributions in binary form must reproduce the above copyright |
29 | | * notice, this list of conditions and the following disclaimer in the |
30 | | * documentation and/or other materials provided with the distribution. |
31 | | * 3. All advertising materials mentioning features or use of this software |
32 | | * must display the following acknowledgement: |
33 | | * "This product includes cryptographic software written by |
34 | | * Eric Young (eay@cryptsoft.com)" |
35 | | * The word 'cryptographic' can be left out if the rouines from the library |
36 | | * being used are not cryptographic related :-). |
37 | | * 4. If you include any Windows specific code (or a derivative thereof) from |
38 | | * the apps directory (application code) you must include an acknowledgement: |
39 | | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
40 | | * |
41 | | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
42 | | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
43 | | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
44 | | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
45 | | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
46 | | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
47 | | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
48 | | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
49 | | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
50 | | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
51 | | * SUCH DAMAGE. |
52 | | * |
53 | | * The licence and distribution terms for any publically available version or |
54 | | * derivative of this code cannot be changed. i.e. this code cannot simply be |
55 | | * copied and put under another distribution licence |
56 | | * [including the GNU Public Licence.] |
57 | | */ |
58 | | |
59 | | #include <stdio.h> |
60 | | #include <string.h> |
61 | | |
62 | | #include <openssl/err.h> |
63 | | #include <openssl/buffer.h> |
64 | | #include <openssl/lhash.h> |
65 | | #include <openssl/objects.h> |
66 | | |
67 | | #include "asn1_locl.h" |
68 | | |
69 | | ASN1_OBJECT * |
70 | | OBJ_dup(const ASN1_OBJECT *o) |
71 | 0 | { |
72 | 0 | ASN1_OBJECT *r; |
73 | 0 | char *ln = NULL, *sn = NULL; |
74 | 0 | unsigned char *data = NULL; |
75 | |
|
76 | 0 | if (o == NULL) |
77 | 0 | return (NULL); |
78 | 0 | if (!(o->flags & ASN1_OBJECT_FLAG_DYNAMIC)) |
79 | 0 | return((ASN1_OBJECT *)o); /* XXX: ugh! Why? What kind of |
80 | | duplication is this??? */ |
81 | | |
82 | 0 | r = ASN1_OBJECT_new(); |
83 | 0 | if (r == NULL) { |
84 | 0 | OBJerror(ERR_R_ASN1_LIB); |
85 | 0 | return (NULL); |
86 | 0 | } |
87 | 0 | data = malloc(o->length); |
88 | 0 | if (data == NULL) |
89 | 0 | goto err; |
90 | 0 | if (o->data != NULL) |
91 | 0 | memcpy(data, o->data, o->length); |
92 | | /* once data attached to object it remains const */ |
93 | 0 | r->data = data; |
94 | 0 | r->length = o->length; |
95 | 0 | r->nid = o->nid; |
96 | 0 | r->ln = r->sn = NULL; |
97 | 0 | if (o->ln != NULL) { |
98 | 0 | ln = strdup(o->ln); |
99 | 0 | if (ln == NULL) |
100 | 0 | goto err; |
101 | 0 | r->ln = ln; |
102 | 0 | } |
103 | | |
104 | 0 | if (o->sn != NULL) { |
105 | 0 | sn = strdup(o->sn); |
106 | 0 | if (sn == NULL) |
107 | 0 | goto err; |
108 | 0 | r->sn = sn; |
109 | 0 | } |
110 | 0 | r->flags = o->flags | (ASN1_OBJECT_FLAG_DYNAMIC | |
111 | 0 | ASN1_OBJECT_FLAG_DYNAMIC_STRINGS | ASN1_OBJECT_FLAG_DYNAMIC_DATA); |
112 | 0 | return (r); |
113 | | |
114 | 0 | err: |
115 | 0 | OBJerror(ERR_R_MALLOC_FAILURE); |
116 | 0 | free(ln); |
117 | 0 | free(sn); |
118 | 0 | free(data); |
119 | 0 | free(r); |
120 | 0 | return (NULL); |
121 | 0 | } |
122 | | |
123 | | int |
124 | | OBJ_cmp(const ASN1_OBJECT *a, const ASN1_OBJECT *b) |
125 | 0 | { |
126 | 0 | int ret; |
127 | |
|
128 | 0 | ret = (a->length - b->length); |
129 | 0 | if (ret) |
130 | 0 | return (ret); |
131 | 0 | return (memcmp(a->data, b->data, a->length)); |
132 | 0 | } |