1/* 2 * Copyright 2016-2021 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the Apache License 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * https://www.openssl.org/source/license.html 8 * or in the file LICENSE in the source distribution. 9 */ 10 11#include <openssl/x509.h> 12#include <openssl/bio.h> 13#include <openssl/err.h> 14#include <openssl/rand.h> 15#include "fuzzer.h" 16 17int FuzzerInitialize(int *argc, char ***argv) 18{ 19 FuzzerSetRand(); 20 OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL); 21 ERR_clear_error(); 22 CRYPTO_free_ex_index(0, -1); 23 return 1; 24} 25 26int FuzzerTestOneInput(const uint8_t *buf, size_t len) 27{ 28 const unsigned char *p = buf; 29 unsigned char *der = NULL; 30 31 X509 *x509 = d2i_X509(NULL, &p, len); 32 if (x509 != NULL) { 33 BIO *bio = BIO_new(BIO_s_null()); 34 /* This will load and print the public key as well as extensions */ 35 X509_print(bio, x509); 36 BIO_free(bio); 37 38 X509_issuer_and_serial_hash(x509); 39 40 i2d_X509(x509, &der); 41 OPENSSL_free(der); 42 43 X509_free(x509); 44 } 45 ERR_clear_error(); 46 return 0; 47} 48 49void FuzzerCleanup(void) 50{ 51 FuzzerClearRand(); 52} 53