// Copyright 2016 The BoringSSL Authors

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

//     https://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

#include <stdio.h>

#include <openssl/mem.h>

#include <openssl/ssl.h>

struct GlobalState {

  GlobalState() : ctx(SSL_CTX_new(TLS_method())) {}

  bssl::UniquePtr<SSL_CTX> ctx;

};

static GlobalState g_state;

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

  // Parse in our session.

  bssl::UniquePtr<SSL_SESSION> session(

      SSL_SESSION_from_bytes(buf, len, g_state.ctx.get()));

  // If the format was invalid, just return.

  if (!session) {

    return 0;

  }

  // Stress the encoder.

  size_t encoded_len;

  uint8_t *encoded;

  if (!SSL_SESSION_to_bytes(session.get(), &encoded, &encoded_len)) {

    fprintf(stderr, "SSL_SESSION_to_bytes failed.\n");

    return 1;

  }

  OPENSSL_free(encoded);

  return 0;

}