/* Copyright (c) 2016, Google Inc.

 *

 * Permission to use, copy, modify, and/or distribute this software for any

 * purpose with or without fee is hereby granted, provided that the above

 * copyright notice and this permission notice appear in all copies.

 *

 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY

 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION

 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN

 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */

#include <openssl/bytestring.h>

#include <openssl/err.h>

#include <openssl/evp.h>

#include <openssl/mem.h>

extern "C" int LLVMFuzzerTestOneInput(const uint8_t *buf, size_t len) {

  CBS cbs;

  CBS_init(&cbs, buf, len);

  EVP_PKEY *pkey = EVP_parse_public_key(&cbs);

  if (pkey == NULL) {

    ERR_clear_error();

    return 0;

  }

  uint8_t *der;

  size_t der_len;

  CBB cbb;

  if (CBB_init(&cbb, 0) &&

      EVP_marshal_public_key(&cbb, pkey) &&

      CBB_finish(&cbb, &der, &der_len)) {

    OPENSSL_free(der);

  }

  CBB_cleanup(&cbb);

  EVP_PKEY_free(pkey);

  ERR_clear_error();

  return 0;

}