mirror of https://github.com/openssl/openssl.git
65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
/*
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* Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <stdio.h>
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#include "internal/cryptlib.h"
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#include <openssl/objects.h>
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#include <openssl/buffer.h>
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#include "crypto/asn1.h"
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ASN1_OBJECT *OBJ_dup(const ASN1_OBJECT *o)
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{
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ASN1_OBJECT *r;
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if (o == NULL)
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return NULL;
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/* If object isn't dynamic it's an internal OID which is never freed */
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if (!(o->flags & ASN1_OBJECT_FLAG_DYNAMIC))
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return (ASN1_OBJECT *)o;
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r = ASN1_OBJECT_new();
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if (r == NULL) {
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ERR_raise(ERR_LIB_OBJ, ERR_R_ASN1_LIB);
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return NULL;
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}
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/* Set dynamic flags so everything gets freed up on error */
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r->flags = o->flags | (ASN1_OBJECT_FLAG_DYNAMIC |
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ASN1_OBJECT_FLAG_DYNAMIC_STRINGS |
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ASN1_OBJECT_FLAG_DYNAMIC_DATA);
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if (o->length > 0 && (r->data = OPENSSL_memdup(o->data, o->length)) == NULL)
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goto err;
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r->length = o->length;
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r->nid = o->nid;
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if (o->ln != NULL && (r->ln = OPENSSL_strdup(o->ln)) == NULL)
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goto err;
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if (o->sn != NULL && (r->sn = OPENSSL_strdup(o->sn)) == NULL)
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goto err;
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return r;
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err:
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ASN1_OBJECT_free(r);
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return NULL;
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}
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int OBJ_cmp(const ASN1_OBJECT *a, const ASN1_OBJECT *b)
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{
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int ret;
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ret = (a->length - b->length);
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if (ret)
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return ret;
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return memcmp(a->data, b->data, a->length);
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}
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