text: /* crypto/md4/md4.h */
  /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   * All rights reserved.
   *
   * This package is an SSL implementation written
   * by Eric Young (eay@cryptsoft.com).
   * The implementation was written so as to conform with Netscapes SSL.
   *
   * This library is free for commercial and non-commercial use as long as
   * the following conditions are aheared to.  The following conditions
   * apply to all code found in this distribution, be it the RC4, RSA,
   * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
   * included with this distribution is covered by the same copyright terms
   * except that the holder is Tim Hudson (tjh@cryptsoft.com).
   *
   * Copyright remains Eric Young's, and as such any Copyright notices in
   * the code are not to be removed.
   * If this package is used in a product, Eric Young should be given attribution
   * as the author of the parts of the library used.
   * This can be in the form of a textual message at program startup or
   * in documentation (online or textual) provided with the package.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. All advertising materials mentioning features or use of this software
   *    must display the following acknowledgement:
   *    "This product includes cryptographic software written by
   *     Eric Young (eay@cryptsoft.com)"
   *    The word 'cryptographic' can be left out if the rouines from the library
   *    being used are not cryptographic related :-).
   * 4. If you include any Windows specific code (or a derivative thereof) from
   *    the apps directory (application code) you must include an acknowledgement:
   *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
   *
   * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   *
   * The licence and distribution terms for any publically available version or
   * derivative of this code cannot be changed.  i.e. this code cannot simply be
   * copied and put under another distribution licence
   * [including the GNU Public Licence.]
   */
  
  #ifndef HEADER_MD4_H
  # define HEADER_MD4_H
  
  # include <openssl/e_os2.h>
  # include <stddef.h>
  
  #ifdef  __cplusplus
  extern "C" {
  #endif
  
  # ifdef OPENSSL_NO_MD4
  #  error MD4 is disabled.
  # endif
  
  /*-
   * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
   * ! MD4_LONG has to be at least 32 bits wide. If it's wider, then !
   * ! MD4_LONG_LOG2 has to be defined along.                        !
   * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
   */
  
  # if defined(__LP32__)
  #  define MD4_LONG unsigned long
  # elif defined(OPENSSL_SYS_CRAY) || defined(__ILP64__)
  #  define MD4_LONG unsigned long
  #  define MD4_LONG_LOG2 3
  /*
   * _CRAY note. I could declare short, but I have no idea what impact
   * does it have on performance on none-T3E machines. I could declare
   * int, but at least on C90 sizeof(int) can be chosen at compile time.
   * So I've chosen long...
   *                                      <appro@fy.chalmers.se>
   */
  # else
  #  define MD4_LONG unsigned int
  # endif
  
  # define MD4_CBLOCK      64
  # define MD4_LBLOCK      (MD4_CBLOCK/4)
  # define MD4_DIGEST_LENGTH 16
  
  typedef struct MD4state_st {
      MD4_LONG A, B, C, D;
      MD4_LONG Nl, Nh;
      MD4_LONG data[MD4_LBLOCK];
      unsigned int num;
  } MD4_CTX;
  
  # ifdef OPENSSL_FIPS
  int private_MD4_Init(MD4_CTX *c);
  # endif
  int MD4_Init(MD4_CTX *c);
  int MD4_Update(MD4_CTX *c, const void *data, size_t len);
  int MD4_Final(unsigned char *md, MD4_CTX *c);
  unsigned char *MD4(const unsigned char *d, size_t n, unsigned char *md);
  void MD4_Transform(MD4_CTX *c, const unsigned char *b);
  #ifdef  __cplusplus
  }
  #endif
  
  #endif
  