fuzz/x509.c

   1 /*
   2  * Copyright 2016 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 "fuzzer.h"
  14
  15 int FuzzerInitialize(int *argc, char ***argv) {
  16     return 1;
  17 }
  18
  19 int FuzzerTestOneInput(const uint8_t *buf, size_t len) {
  20     const unsigned char *p = buf;
  21     unsigned char *der = NULL;
  22
  23     X509 *x509 = d2i_X509(NULL, &p, len);
  24     if (x509 != NULL) {
  25         BIO *bio = BIO_new(BIO_s_null());
  26         /* This will load and print the public key as well as extensions */
  27         X509_print(bio, x509);
  28         BIO_free(bio);
  29
  30         i2d_X509(x509, &der);
  31         OPENSSL_free(der);
  32
  33         X509_free(x509);
  34     }
  35     return 0;
  36 }