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      1 /*
      2  * Copyright 2016-2021 The OpenSSL Project Authors. All Rights Reserved.
      3  *
      4  * Licensed under the OpenSSL licenses, (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 
     17 #include "rand.inc"
     18 
     19 int FuzzerInitialize(int *argc, char ***argv)
     20 {
     21     OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
     22     ERR_get_state();
     23     CRYPTO_free_ex_index(0, -1);
     24     FuzzerSetRand();
     25     return 1;
     26 }
     27 
     28 int FuzzerTestOneInput(const uint8_t *buf, size_t len)
     29 {
     30     const unsigned char *p = buf;
     31     unsigned char *der = NULL;
     32 
     33     X509 *x509 = d2i_X509(NULL, &p, len);
     34     if (x509 != NULL) {
     35         BIO *bio = BIO_new(BIO_s_null());
     36         /* This will load and print the public key as well as extensions */
     37         X509_print(bio, x509);
     38         BIO_free(bio);
     39 
     40         X509_issuer_and_serial_hash(x509);
     41 
     42         i2d_X509(x509, &der);
     43         OPENSSL_free(der);
     44 
     45         X509_free(x509);
     46     }
     47     ERR_clear_error();
     48     return 0;
     49 }
     50 
     51 void FuzzerCleanup(void)
     52 {
     53 }
     54