A local copy of OpenSSL from GitHub
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/*
* 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();
}