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/*
 * 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 "crypto/asn1.h"
#include "crypto/evp.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;
}