fuzz/x509.c

   1 /*
   2  * Copyright 2016 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
  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         i2d_X509(x509, &der);
  41         OPENSSL_free(der);
  42
  43         X509_free(x509);
  44     }
  45     ERR_clear_error();
  46     return 0;
  47 }
  48
  49 void FuzzerCleanup(void)
  50 {
  51 }