/* * Copyright 1999-2016 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 #include "internal/cryptlib.h" #include /* 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) { ASN1err(ASN1_F_ASN1_ITEM_PACK, 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) { ASN1err(ASN1_F_ASN1_ITEM_PACK, ASN1_R_ENCODE_ERROR); goto err; } if (octmp->data == NULL) { ASN1err(ASN1_F_ASN1_ITEM_PACK, 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(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) ASN1err(ASN1_F_ASN1_ITEM_UNPACK, ASN1_R_DECODE_ERROR); return ret; }