/*

 * Copyright 2016-2021 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 may obtain a copy of the License at

 * https://www.openssl.org/source/license.html

 * or in the file LICENSE in the source distribution.

 */

#include <openssl/x509.h>

#include <openssl/bio.h>

#include <openssl/err.h>

#include <openssl/rand.h>

#include "fuzzer.h"

int FuzzerInitialize(int *argc, char ***argv)

{

    FuzzerSetRand();

    OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);

    ERR_clear_error();

    CRYPTO_free_ex_index(0, -1);

    return 1;

}

int FuzzerTestOneInput(const uint8_t *buf, size_t len)

{

    const unsigned char *p = buf;

    unsigned char *der = NULL;

    X509 *x509 = d2i_X509(NULL, &p, len);

    if (x509 != NULL) {

        BIO *bio = BIO_new(BIO_s_null());

        /* This will load and print the public key as well as extensions */

        X509_print(bio, x509);

        BIO_free(bio);

        X509_issuer_and_serial_hash(x509);

        i2d_X509(x509, &der);

        OPENSSL_free(der);

        X509_free(x509);

    }

    ERR_clear_error();

    return 0;

}

void FuzzerCleanup(void)

{

    FuzzerClearRand();

}