git.sur5r.net Git - openldap/blob - include/lutil_hash.h

   1 /* $OpenLDAP$ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 1998-2018 The OpenLDAP Foundation.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted only as authorized by the OpenLDAP
   9  * Public License.
  10  *
  11  * A copy of this license is available in file LICENSE in the
  12  * top-level directory of the distribution or, alternatively, at
  13  * <http://www.OpenLDAP.org/license.html>.
  14  */
  15
  16 #ifndef _LUTIL_HASH_H_
  17 #define _LUTIL_HASH_H_
  18
  19 #include <lber_types.h>
  20
  21 LDAP_BEGIN_DECL
  22
  23 #define LUTIL_HASH_BYTES 4
  24
  25 #ifdef HAVE_LONG_LONG
  26
  27 typedef union lutil_HASHContext {
  28         ber_uint_t hash;
  29         unsigned long long hash64;
  30 } lutil_HASH_CTX;
  31
  32 #else /* !HAVE_LONG_LONG */
  33
  34 typedef struct lutil_HASHContext {
  35         ber_uint_t hash;
  36 } lutil_HASH_CTX;
  37
  38 #endif /* HAVE_LONG_LONG */
  39
  40 LDAP_LUTIL_F( void )
  41 lutil_HASHInit LDAP_P((
  42         lutil_HASH_CTX *context));
  43
  44 LDAP_LUTIL_F( void )
  45 lutil_HASHUpdate LDAP_P((
  46         lutil_HASH_CTX *context,
  47         unsigned char const *buf,
  48         ber_len_t len));
  49
  50 LDAP_LUTIL_F( void )
  51 lutil_HASHFinal LDAP_P((
  52         unsigned char digest[LUTIL_HASH_BYTES],
  53         lutil_HASH_CTX *context));
  54
  55 #ifdef HAVE_LONG_LONG
  56
  57 #define LUTIL_HASH64_BYTES      8
  58
  59 LDAP_LUTIL_F( void )
  60 lutil_HASH64Init LDAP_P((
  61         lutil_HASH_CTX *context));
  62
  63 LDAP_LUTIL_F( void )
  64 lutil_HASH64Update LDAP_P((
  65         lutil_HASH_CTX *context,
  66         unsigned char const *buf,
  67         ber_len_t len));
  68
  69 LDAP_LUTIL_F( void )
  70 lutil_HASH64Final LDAP_P((
  71         unsigned char digest[LUTIL_HASH64_BYTES],
  72         lutil_HASH_CTX *context));
  73
  74 #endif /* HAVE_LONG_LONG */
  75
  76 LDAP_END_DECL
  77
  78 #endif /* _LUTIL_HASH_H_ */