text: /*
   * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
   *
   * Licensed under the Apache License 2.0 (the "License").  You may not use
   * this file except in compliance with the License.  You can obtain a copy
   * in the file LICENSE in the source distribution or at
   * https://www.openssl.org/source/license.html
   */
  
  #ifndef OPENSSL_MD5_H
  # define OPENSSL_MD5_H
  # pragma once
  
  # include <openssl/macros.h>
  # if !OPENSSL_API_3
  #  define HEADER_MD5_H
  # endif
  
  # include <openssl/opensslconf.h>
  
  # ifndef OPENSSL_NO_MD5
  # include <openssl/e_os2.h>
  # include <stddef.h>
  # ifdef  __cplusplus
  extern "C" {
  # endif
  
  /*
   * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
   * ! MD5_LONG has to be at least 32 bits wide.                     !
   * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
   */
  # define MD5_LONG unsigned int
  
  # define MD5_CBLOCK      64
  # define MD5_LBLOCK      (MD5_CBLOCK/4)
  # define MD5_DIGEST_LENGTH 16
  
  typedef struct MD5state_st {
      MD5_LONG A, B, C, D;
      MD5_LONG Nl, Nh;
      MD5_LONG data[MD5_LBLOCK];
      unsigned int num;
  } MD5_CTX;
  
  int MD5_Init(MD5_CTX *c);
  int MD5_Update(MD5_CTX *c, const void *data, size_t len);
  int MD5_Final(unsigned char *md, MD5_CTX *c);
  unsigned char *MD5(const unsigned char *d, size_t n, unsigned char *md);
  void MD5_Transform(MD5_CTX *c, const unsigned char *b);
  # ifdef  __cplusplus
  }
  # endif
  # endif
  
  #endif
  