text: /*
    Copyright (C) 1999, 2002 Aladdin Enterprises.  All rights reserved.
  
    This software is provided 'as-is', without any express or implied
    warranty.  In no event will the authors be held liable for any damages
    arising from the use of this software.
  
    Permission is granted to anyone to use this software for any purpose,
    including commercial applications, and to alter it and redistribute it
    freely, subject to the following restrictions:
  
    1. The origin of this software must not be misrepresented; you must not
       claim that you wrote the original software. If you use this software
       in a product, an acknowledgment in the product documentation would be
       appreciated but is not required.
    2. Altered source versions must be plainly marked as such, and must not be
       misrepresented as being the original software.
    3. This notice may not be removed or altered from any source distribution.
  
    L. Peter Deutsch
    ghost@aladdin.com
  
   */
  /* $Id: md5.h,v 1.6 2005/06/02 04:48:25 zion Exp $ */
  /*
    Independent implementation of MD5 (RFC 1321).
  
    This code implements the MD5 Algorithm defined in RFC 1321, whose
    text is available at
  	http://www.ietf.org/rfc/rfc1321.txt
    The code is derived from the text of the RFC, including the test suite
    (section A.5) but excluding the rest of Appendix A.  It does not include
    any code or documentation that is identified in the RFC as being
    copyrighted.
  
    The original and principal author of md5.h is L. Peter Deutsch
    <ghost@aladdin.com>.  Other authors are noted in the change history
    that follows (in reverse chronological order):
  
    2002-04-13 lpd Removed support for non-ANSI compilers; removed
  	references to Ghostscript; clarified derivation from RFC 1321;
  	now handles byte order either statically or dynamically.
    1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
    1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5);
  	added conditionalization for C++ compilation from Martin
  	Purschke <purschke@bnl.gov>.
    1999-05-03 lpd Original version.
   */
  
  #ifndef md5_INCLUDED
  #  define md5_INCLUDED
  
  #include "util.h"
  
  /* jabberd2 Windows DLL */
  #ifndef JABBERD2_API
  # ifdef _WIN32
  #  ifdef JABBERD2_EXPORTS
  #   define JABBERD2_API  __declspec(dllexport)
  #  else /* JABBERD2_EXPORTS */
  #   define JABBERD2_API  __declspec(dllimport)
  #  endif /* JABBERD2_EXPORTS */
  # else /* _WIN32 */
  #  define JABBERD2_API extern
  # endif /* _WIN32 */
  #endif /* JABBERD2_API */
  
  /* use OpenSSL functions when available */
  #ifdef HAVE_SSL
  #include <openssl/md5.h>
  
  #define md5_state_t MD5_CTX
  #define md5_init(c) MD5_Init(c)
  #define md5_append(c, data, len) MD5_Update(c, data, len);
  #define md5_finish(c, md) MD5_Final(md, c)
  
  #else
  /*
   * This package supports both compile-time and run-time determination of CPU
   * byte order.  If ARCH_IS_BIG_ENDIAN is defined as 0, the code will be
   * compiled to run only on little-endian CPUs; if ARCH_IS_BIG_ENDIAN is
   * defined as non-zero, the code will be compiled to run only on big-endian
   * CPUs; if ARCH_IS_BIG_ENDIAN is not defined, the code will be compiled to
   * run on either big- or little-endian CPUs, but will run slightly less
   * efficiently on either one than if ARCH_IS_BIG_ENDIAN is defined.
   */
  
  typedef uint8_t  md5_byte_t; /* 8-bit byte */
  typedef uint32_t md5_word_t; /* 32-bit word */
  
  /* Define the state of the MD5 Algorithm. */
  typedef struct md5_state_s {
      md5_word_t count[2];	/* message length in bits, lsw first */
      md5_word_t abcd[4];		/* digest buffer */
      md5_byte_t buf[64];		/* accumulate block */
  } md5_state_t;
  
  #ifdef __cplusplus
  extern "C" 
  {
  #endif
  
  /* Initialize the algorithm. */
  JABBERD2_API void md5_init(md5_state_t *pms);
  
  /* Append a string to the message. */
  JABBERD2_API void md5_append(md5_state_t *pms, const md5_byte_t *data, int nbytes);
  
  /* Finish the message and return the digest. */
  JABBERD2_API void md5_finish(md5_state_t *pms, md5_byte_t digest[16]);
  
  #ifdef __cplusplus
  }  /* end extern "C" */
  #endif
  
  #endif /* md5_INCLUDED */
  
  #endif /* HAVE_SSL */
  