/*

 * 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/evp.h>

#include <openssl/x509.h>

#include "internal/asn1_int.h"

#include "internal/evp_int.h"

int i2d_PrivateKey(EVP_PKEY *a, unsigned char **pp)

{

    if (a->ameth && a->ameth->old_priv_encode) {

        return a->ameth->old_priv_encode(a, pp);

    }

    if (a->ameth && a->ameth->priv_encode) {

        PKCS8_PRIV_KEY_INFO *p8 = EVP_PKEY2PKCS8(a);

        int ret = 0;

        if (p8 != NULL) {

            ret = i2d_PKCS8_PRIV_KEY_INFO(p8, pp);

            PKCS8_PRIV_KEY_INFO_free(p8);

        }

        return ret;

    }

    ASN1err(ASN1_F_I2D_PRIVATEKEY, ASN1_R_UNSUPPORTED_PUBLIC_KEY_TYPE);

    return -1;

}