/*

 * 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.

 */

/*

 * Fuzz the parser used for dumping ASN.1 using "openssl asn1parse".

 */

#include <stdio.h>

#include <openssl/asn1.h>

#include <openssl/x509.h>

#include <openssl/x509v3.h>

#include <openssl/err.h>

#include "fuzzer.h"

static BIO *bio_out;

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

{

    bio_out = BIO_new(BIO_s_null()); /* output will be ignored */

    if (bio_out == NULL)

        return 0;

    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)

{

    (void)ASN1_parse_dump(bio_out, buf, len, 0, 0);

    ERR_clear_error();

    return 0;

}

void FuzzerCleanup(void)

{

    BIO_free(bio_out);

}