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asn1parse.c 1.0 KB

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  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. * Fuzz the parser used for dumping ASN.1 using "openssl asn1parse".
  12. */
  13. #include <stdio.h>
  14. #include <openssl/asn1.h>
  15. #include <openssl/x509.h>
  16. #include <openssl/x509v3.h>
  17. #include <openssl/err.h>
  18. #include "fuzzer.h"
  19. static BIO *bio_out;
  20. int FuzzerInitialize(int *argc, char ***argv)
  21. {
  22. bio_out = BIO_new_file("/dev/null", "w");
  23. OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
  24. ERR_clear_error();
  25. CRYPTO_free_ex_index(0, -1);
  26. return 1;
  27. }
  28. int FuzzerTestOneInput(const uint8_t *buf, size_t len)
  29. {
  30. (void)ASN1_parse_dump(bio_out, buf, len, 0, 0);
  31. ERR_clear_error();
  32. return 0;
  33. }
  34. void FuzzerCleanup(void)
  35. {
  36. BIO_free(bio_out);
  37. }