diff options
Diffstat (limited to 'openssl-1.1.0h/crypto/asn1/asn_pack.c')
| -rw-r--r-- | openssl-1.1.0h/crypto/asn1/asn_pack.c | 62 | 
1 files changed, 62 insertions, 0 deletions
| diff --git a/openssl-1.1.0h/crypto/asn1/asn_pack.c b/openssl-1.1.0h/crypto/asn1/asn_pack.c new file mode 100644 index 0000000..63bc306 --- /dev/null +++ b/openssl-1.1.0h/crypto/asn1/asn_pack.c @@ -0,0 +1,62 @@ +/* + * 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 <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) { +            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(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) +        ASN1err(ASN1_F_ASN1_ITEM_UNPACK, ASN1_R_DECODE_ERROR); +    return ret; +} | 
