11cb0ef41Sopenharmony_ci/*
21cb0ef41Sopenharmony_ci * Copyright 2016-2021 The OpenSSL Project Authors. All Rights Reserved.
31cb0ef41Sopenharmony_ci *
41cb0ef41Sopenharmony_ci * Licensed under the Apache License 2.0 (the "License");
51cb0ef41Sopenharmony_ci * you may not use this file except in compliance with the License.
61cb0ef41Sopenharmony_ci * You may obtain a copy of the License at
71cb0ef41Sopenharmony_ci * https://www.openssl.org/source/license.html
81cb0ef41Sopenharmony_ci * or in the file LICENSE in the source distribution.
91cb0ef41Sopenharmony_ci */
101cb0ef41Sopenharmony_ci
111cb0ef41Sopenharmony_ci/*
121cb0ef41Sopenharmony_ci * Fuzz the parser used for dumping ASN.1 using "openssl asn1parse".
131cb0ef41Sopenharmony_ci */
141cb0ef41Sopenharmony_ci
151cb0ef41Sopenharmony_ci#include <stdio.h>
161cb0ef41Sopenharmony_ci#include <openssl/asn1.h>
171cb0ef41Sopenharmony_ci#include <openssl/x509.h>
181cb0ef41Sopenharmony_ci#include <openssl/x509v3.h>
191cb0ef41Sopenharmony_ci#include <openssl/err.h>
201cb0ef41Sopenharmony_ci#include "fuzzer.h"
211cb0ef41Sopenharmony_ci
221cb0ef41Sopenharmony_cistatic BIO *bio_out;
231cb0ef41Sopenharmony_ci
241cb0ef41Sopenharmony_ciint FuzzerInitialize(int *argc, char ***argv)
251cb0ef41Sopenharmony_ci{
261cb0ef41Sopenharmony_ci    bio_out = BIO_new(BIO_s_null()); /* output will be ignored */
271cb0ef41Sopenharmony_ci    if (bio_out == NULL)
281cb0ef41Sopenharmony_ci        return 0;
291cb0ef41Sopenharmony_ci    OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
301cb0ef41Sopenharmony_ci    ERR_clear_error();
311cb0ef41Sopenharmony_ci    CRYPTO_free_ex_index(0, -1);
321cb0ef41Sopenharmony_ci    return 1;
331cb0ef41Sopenharmony_ci}
341cb0ef41Sopenharmony_ci
351cb0ef41Sopenharmony_ciint FuzzerTestOneInput(const uint8_t *buf, size_t len)
361cb0ef41Sopenharmony_ci{
371cb0ef41Sopenharmony_ci    (void)ASN1_parse_dump(bio_out, buf, len, 0, 0);
381cb0ef41Sopenharmony_ci    ERR_clear_error();
391cb0ef41Sopenharmony_ci    return 0;
401cb0ef41Sopenharmony_ci}
411cb0ef41Sopenharmony_ci
421cb0ef41Sopenharmony_civoid FuzzerCleanup(void)
431cb0ef41Sopenharmony_ci{
441cb0ef41Sopenharmony_ci    BIO_free(bio_out);
451cb0ef41Sopenharmony_ci}
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