1 | /* |
---|---|
2 | * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved. |
3 | * |
4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at |
7 | * https://www.openssl.org/source/license.html |
8 | */ |
9 | |
10 | #include <stdio.h> |
11 | #include "internal/cryptlib.h" |
12 | #include <openssl/objects.h> |
13 | #include <openssl/buffer.h> |
14 | #include "crypto/asn1.h" |
15 | |
16 | ASN1_OBJECT *OBJ_dup(const ASN1_OBJECT *o) |
17 | { |
18 | ASN1_OBJECT *r; |
19 | |
20 | if (o == NULL) |
21 | return NULL; |
22 | /* If object isn't dynamic it's an internal OID which is never freed */ |
23 | if (!(o->flags & ASN1_OBJECT_FLAG_DYNAMIC)) |
24 | return (ASN1_OBJECT *)o; |
25 | |
26 | r = ASN1_OBJECT_new(); |
27 | if (r == NULL) { |
28 | OBJerr(OBJ_F_OBJ_DUP, ERR_R_ASN1_LIB); |
29 | return NULL; |
30 | } |
31 | |
32 | /* Set dynamic flags so everything gets freed up on error */ |
33 | |
34 | r->flags = o->flags | (ASN1_OBJECT_FLAG_DYNAMIC | |
35 | ASN1_OBJECT_FLAG_DYNAMIC_STRINGS | |
36 | ASN1_OBJECT_FLAG_DYNAMIC_DATA); |
37 | |
38 | if (o->length > 0 && (r->data = OPENSSL_memdup(o->data, o->length)) == NULL) |
39 | goto err; |
40 | |
41 | r->length = o->length; |
42 | r->nid = o->nid; |
43 | |
44 | if (o->ln != NULL && (r->ln = OPENSSL_strdup(o->ln)) == NULL) |
45 | goto err; |
46 | |
47 | if (o->sn != NULL && (r->sn = OPENSSL_strdup(o->sn)) == NULL) |
48 | goto err; |
49 | |
50 | return r; |
51 | err: |
52 | ASN1_OBJECT_free(r); |
53 | OBJerr(OBJ_F_OBJ_DUP, ERR_R_MALLOC_FAILURE); |
54 | return NULL; |
55 | } |
56 | |
57 | int OBJ_cmp(const ASN1_OBJECT *a, const ASN1_OBJECT *b) |
58 | { |
59 | int ret; |
60 | |
61 | ret = (a->length - b->length); |
62 | if (ret) |
63 | return ret; |
64 | return memcmp(a->data, b->data, a->length); |
65 | } |
66 |