text: /*
   * Copyright (C) 2004-2006  Internet Systems Consortium, Inc. ("ISC")
   * Copyright (C) 2000, 2001  Internet Software Consortium.
   *
   * Permission to use, copy, modify, and distribute this software for any
   * purpose with or without fee is hereby granted, provided that the above
   * copyright notice and this permission notice appear in all copies.
   *
   * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
   * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
   * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
   * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
   * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
   * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
   * PERFORMANCE OF THIS SOFTWARE.
   */
  
  /* $ISC: md5.h,v 1.9.18.4 2006/02/01 00:10:34 marka Exp $ */
  
  /*! \file 
   * \brief This is the header file for the MD5 message-digest algorithm.
   *
   * The algorithm is due to Ron Rivest.  This code was
   * written by Colin Plumb in 1993, no copyright is claimed.
   * This code is in the public domain; do with it what you wish.
   *
   * Equivalent code is available from RSA Data Security, Inc.
   * This code has been tested against that, and is equivalent,
   * except that you don't need to include two pages of legalese
   * with every copy.
   *
   * To compute the message digest of a chunk of bytes, declare an
   * MD5Context structure, pass it to MD5Init, call MD5Update as
   * needed on buffers full of bytes, and then call MD5Final, which
   * will fill a supplied 16-byte array with the digest.
   *
   * Changed so as no longer to depend on Colin Plumb's `usual.h'
   * header definitions; now uses stuff from dpkg's config.h
   *  - Ian Jackson <ijackson@nyx.cs.du.edu>.
   * Still in the public domain.
   */
  
  #ifndef ISC_MD5_H
  #define ISC_MD5_H 1
  
  #include <isc/lang.h>
  #include <isc/types.h>
  
  #define ISC_MD5_DIGESTLENGTH 16U
  
  typedef struct {
  	isc_uint32_t buf[4];
  	isc_uint32_t bytes[2];
  	isc_uint32_t in[16];
  } isc_md5_t;
  
  ISC_LANG_BEGINDECLS
  
  void
  isc_md5_init(isc_md5_t *ctx);
  
  void
  isc_md5_invalidate(isc_md5_t *ctx);
  
  void
  isc_md5_update(isc_md5_t *ctx, const unsigned char *buf, unsigned int len);
  
  void
  isc_md5_final(isc_md5_t *ctx, unsigned char *digest);
  
  ISC_LANG_ENDDECLS
  
  #endif /* ISC_MD5_H */
  