2 * Copyright 1999-2016 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/asn1.h>
14 /* ASN1 packing and unpacking functions */
16 ASN1_STRING *ASN1_item_pack(void *obj, const ASN1_ITEM *it, ASN1_STRING **oct)
20 if (oct == NULL || *oct == NULL) {
21 if ((octmp = ASN1_STRING_new()) == NULL) {
22 ASN1err(ASN1_F_ASN1_ITEM_PACK, ERR_R_MALLOC_FAILURE);
29 OPENSSL_free(octmp->data);
32 if ((octmp->length = ASN1_item_i2d(obj, &octmp->data, it)) == 0) {
33 ASN1err(ASN1_F_ASN1_ITEM_PACK, ASN1_R_ENCODE_ERROR);
36 if (octmp->data == NULL) {
37 ASN1err(ASN1_F_ASN1_ITEM_PACK, ERR_R_MALLOC_FAILURE);
41 if (oct != NULL && *oct == NULL)
46 if (oct == NULL || *oct == NULL)
47 ASN1_STRING_free(octmp);
51 /* Extract an ASN1 object from an ASN1_STRING */
53 void *ASN1_item_unpack(const ASN1_STRING *oct, const ASN1_ITEM *it)
55 const unsigned char *p;
59 if ((ret = ASN1_item_d2i(NULL, &p, oct->length, it)) == NULL)
60 ASN1err(ASN1_F_ASN1_ITEM_UNPACK, ASN1_R_DECODE_ERROR);