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/*
* Copyright 2016-2025 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, (long)len, 0, 0);
ERR_clear_error();
return 0;
}
void FuzzerCleanup(void)
{
BIO_free(bio_out);
}
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