mirror of
https://github.com/openssl/openssl.git
synced 2025-02-23 14:42:15 +08:00
84 lines
2.2 KiB
C
84 lines
2.2 KiB
C
/*
|
|
* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
|
|
*
|
|
* Licensed under the OpenSSL license (the "License"). You may not use
|
|
* this file except in compliance with the License. You can obtain a copy
|
|
* in the file LICENSE in the source distribution or at
|
|
* https://www.openssl.org/source/license.html
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include "internal/cryptlib.h"
|
|
#include <openssl/lhash.h>
|
|
#include <openssl/objects.h>
|
|
#include <openssl/buffer.h>
|
|
#include "internal/asn1_int.h"
|
|
|
|
ASN1_OBJECT *OBJ_dup(const ASN1_OBJECT *o)
|
|
{
|
|
ASN1_OBJECT *r;
|
|
int i;
|
|
char *ln = NULL, *sn = NULL;
|
|
unsigned char *data = NULL;
|
|
|
|
if (o == NULL)
|
|
return (NULL);
|
|
if (!(o->flags & ASN1_OBJECT_FLAG_DYNAMIC))
|
|
return ((ASN1_OBJECT *)o); /* XXX: ugh! Why? What kind of duplication
|
|
* is this??? */
|
|
|
|
r = ASN1_OBJECT_new();
|
|
if (r == NULL) {
|
|
OBJerr(OBJ_F_OBJ_DUP, ERR_R_ASN1_LIB);
|
|
return (NULL);
|
|
}
|
|
data = OPENSSL_malloc(o->length);
|
|
if (data == NULL)
|
|
goto err;
|
|
if (o->data != NULL)
|
|
memcpy(data, o->data, o->length);
|
|
/* once data attached to object it remains const */
|
|
r->data = data;
|
|
r->length = o->length;
|
|
r->nid = o->nid;
|
|
r->ln = r->sn = NULL;
|
|
if (o->ln != NULL) {
|
|
i = strlen(o->ln) + 1;
|
|
ln = OPENSSL_malloc(i);
|
|
if (ln == NULL)
|
|
goto err;
|
|
memcpy(ln, o->ln, i);
|
|
r->ln = ln;
|
|
}
|
|
|
|
if (o->sn != NULL) {
|
|
i = strlen(o->sn) + 1;
|
|
sn = OPENSSL_malloc(i);
|
|
if (sn == NULL)
|
|
goto err;
|
|
memcpy(sn, o->sn, i);
|
|
r->sn = sn;
|
|
}
|
|
r->flags = o->flags | (ASN1_OBJECT_FLAG_DYNAMIC |
|
|
ASN1_OBJECT_FLAG_DYNAMIC_STRINGS |
|
|
ASN1_OBJECT_FLAG_DYNAMIC_DATA);
|
|
return (r);
|
|
err:
|
|
OBJerr(OBJ_F_OBJ_DUP, ERR_R_MALLOC_FAILURE);
|
|
OPENSSL_free(ln);
|
|
OPENSSL_free(sn);
|
|
OPENSSL_free(data);
|
|
OPENSSL_free(r);
|
|
return (NULL);
|
|
}
|
|
|
|
int OBJ_cmp(const ASN1_OBJECT *a, const ASN1_OBJECT *b)
|
|
{
|
|
int ret;
|
|
|
|
ret = (a->length - b->length);
|
|
if (ret)
|
|
return (ret);
|
|
return (memcmp(a->data, b->data, a->length));
|
|
}
|