text: /*
   * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
   *
   * Licensed under the Apache License, Version 2.0 (the "License").
   * You may not use this file except in compliance with the License.
   * A copy of the License is located at
   *
   *  http://aws.amazon.com/apache2.0
   *
   * or in the "license" file accompanying this file. This file 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.
   */
  
  #pragma once
  
  #include <stdint.h>
  
  #include "s2n_connection.h"
  
  #define TLS13_CONTENT_TYPE_LENGTH 1
  
  extern S2N_RESULT s2n_record_max_write_payload_size(struct s2n_connection *conn, uint16_t *max_fragment_size);
  extern int s2n_record_min_write_payload_size(struct s2n_connection *conn);
  extern int s2n_record_write(struct s2n_connection *conn, uint8_t content_type, struct s2n_blob *in);
  extern int s2n_record_writev(struct s2n_connection *conn, uint8_t content_type, const struct iovec *in, int in_count, size_t offs, size_t to_write);
  extern int s2n_record_parse(struct s2n_connection *conn);
  extern int s2n_record_header_parse(struct s2n_connection *conn, uint8_t * content_type, uint16_t * fragment_length);
  extern int s2n_tls13_parse_record_type(struct s2n_stuffer *stuffer, uint8_t * record_type);
  extern int s2n_sslv2_record_header_parse(struct s2n_connection *conn, uint8_t * record_type, uint8_t * client_protocol_version, uint16_t * fragment_length);
  extern int s2n_verify_cbc(struct s2n_connection *conn, struct s2n_hmac_state *hmac, struct s2n_blob *decrypted);
  extern int s2n_aead_aad_init(const struct s2n_connection *conn, uint8_t * sequence_number, uint8_t content_type, uint16_t record_length, struct s2n_stuffer *ad);
  extern int s2n_tls13_aead_aad_init(uint16_t record_length, uint8_t tag_length, struct s2n_stuffer *ad);
  