text: /*	$OpenBSD: md5.h,v 1.16 2004/06/22 01:57:30 jfb Exp $	*/
  
  /*
   * This code implements 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.
   */
  
  #ifndef _MD5_H_
  #define _MD5_H_
  
  #define	MD5_BLOCK_LENGTH		64
  #define	MD5_DIGEST_LENGTH		16
  #define	MD5_DIGEST_STRING_LENGTH	(MD5_DIGEST_LENGTH * 2 + 1)
  
  typedef struct MD5Context {
  	u_int32_t state[4];			/* state */
  	u_int64_t count;			/* number of bits, mod 2^64 */
  	u_int8_t buffer[MD5_BLOCK_LENGTH];	/* input buffer */
  } MD5_CTX;
  
  #include <sys/cdefs.h>
  
  __BEGIN_DECLS
  void	 MD5Init(MD5_CTX *);
  void	 MD5Update(MD5_CTX *, const u_int8_t *, size_t)
  		__attribute__((__bounded__(__string__,2,3)));
  void	 MD5Pad(MD5_CTX *);
  void	 MD5Final(u_int8_t [MD5_DIGEST_LENGTH], MD5_CTX *)
  		__attribute__((__bounded__(__minbytes__,1,MD5_DIGEST_LENGTH)));
  void	 MD5Transform(u_int32_t [4], const u_int8_t [MD5_BLOCK_LENGTH])
  		__attribute__((__bounded__(__minbytes__,1,4)))
  		__attribute__((__bounded__(__minbytes__,2,MD5_BLOCK_LENGTH)));
  char	*MD5End(MD5_CTX *, char *)
  		__attribute__((__bounded__(__minbytes__,2,MD5_DIGEST_STRING_LENGTH)));
  char	*MD5File(const char *, char *)
  		__attribute__((__bounded__(__minbytes__,2,MD5_DIGEST_STRING_LENGTH)));
  char	*MD5FileChunk(const char *, char *, off_t, off_t)
  		__attribute__((__bounded__(__minbytes__,2,MD5_DIGEST_STRING_LENGTH)));
  char	*MD5Data(const u_int8_t *, size_t, char *)
  		__attribute__((__bounded__(__string__,1,2)))
  		__attribute__((__bounded__(__minbytes__,3,MD5_DIGEST_STRING_LENGTH)));
  __END_DECLS
  
  #endif /* _MD5_H_ */
  