2 * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (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
11 #include "internal/cryptlib.h"
12 #include <openssl/objects.h>
13 #include <openssl/buffer.h>
14 #include "internal/asn1_int.h"
16 ASN1_OBJECT *OBJ_dup(const ASN1_OBJECT *o)
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;
26 r = ASN1_OBJECT_new();
28 OBJerr(OBJ_F_OBJ_DUP, ERR_R_ASN1_LIB);
32 /* Set dynamic flags so everything gets freed up on error */
34 r->flags = o->flags | (ASN1_OBJECT_FLAG_DYNAMIC |
35 ASN1_OBJECT_FLAG_DYNAMIC_STRINGS |
36 ASN1_OBJECT_FLAG_DYNAMIC_DATA);
38 if (o->length > 0 && (r->data = OPENSSL_memdup(o->data, o->length)) == NULL)
41 r->length = o->length;
44 if (o->ln != NULL && (r->ln = OPENSSL_strdup(o->ln)) == NULL)
47 if (o->sn != NULL && (r->sn = OPENSSL_strdup(o->sn)) == NULL)
53 OBJerr(OBJ_F_OBJ_DUP, ERR_R_MALLOC_FAILURE);
57 int OBJ_cmp(const ASN1_OBJECT *a, const ASN1_OBJECT *b)
61 ret = (a->length - b->length);
64 return memcmp(a->data, b->data, a->length);