| /* |
| * Copyright 1999-2020 The OpenSSL Project Authors. All Rights Reserved. |
| * |
| * Licensed under the Apache License 2.0 (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/asn1.h> |
| |
| /* ASN1 packing and unpacking functions */ |
| |
| ASN1_STRING *ASN1_item_pack(void *obj, const ASN1_ITEM *it, ASN1_STRING **oct) |
| { |
| ASN1_STRING *octmp; |
| |
| if (oct == NULL || *oct == NULL) { |
| if ((octmp = ASN1_STRING_new()) == NULL) { |
| ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE); |
| return NULL; |
| } |
| } else { |
| octmp = *oct; |
| } |
| |
| OPENSSL_free(octmp->data); |
| octmp->data = NULL; |
| |
| if ((octmp->length = ASN1_item_i2d(obj, &octmp->data, it)) == 0) { |
| ERR_raise(ERR_LIB_ASN1, ASN1_R_ENCODE_ERROR); |
| goto err; |
| } |
| if (octmp->data == NULL) { |
| ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE); |
| goto err; |
| } |
| |
| if (oct != NULL && *oct == NULL) |
| *oct = octmp; |
| |
| return octmp; |
| err: |
| if (oct == NULL || *oct == NULL) |
| ASN1_STRING_free(octmp); |
| return NULL; |
| } |
| |
| /* Extract an ASN1 object from an ASN1_STRING */ |
| |
| void *ASN1_item_unpack(const ASN1_STRING *oct, const ASN1_ITEM *it) |
| { |
| const unsigned char *p; |
| void *ret; |
| |
| p = oct->data; |
| if ((ret = ASN1_item_d2i(NULL, &p, oct->length, it)) == NULL) |
| ERR_raise(ERR_LIB_ASN1, ASN1_R_DECODE_ERROR); |
| return ret; |
| } |