lib/gnutls_num.h

   1 /*
   2  * Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation
   3  *
   4  * Author: Nikos Mavrogiannopoulos
   5  *
   6  * This file is part of GNUTLS.
   7  *
   8  * The GNUTLS library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public License
  10  * as published by the Free Software Foundation; either version 2.1 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  21  * USA
  22  *
  23  */
  24
  25 #include <gnutls_int.h>
  26
  27 #include <minmax.h>
  28
  29 #define rotl32(x,n)   (((x) << ((uint16_t)(n))) | ((x) >> (32 - (uint16_t)(n))))
  30 #define rotr32(x,n)   (((x) >> ((uint16_t)(n))) | ((x) << (32 - (uint16_t)(n))))
  31 #define rotl16(x,n)   (((x) << ((uint16_t)(n))) | ((x) >> (16 - (uint16_t)(n))))
  32 #define rotr16(x,n)   (((x) >> ((uint16_t)(n))) | ((x) << (16 - (uint16_t)(n))))
  33
  34 #define byteswap16(x)  ((rotl16(x, 8) & 0x00ff) | (rotr16(x, 8) & 0xff00))
  35 #define byteswap32(x)  ((rotl32(x, 8) & 0x00ff00ffUL) | (rotr32(x, 8) & 0xff00ff00UL))
  36
  37 uint32_t _gnutls_uint24touint32 (uint24 num);
  38 uint24 _gnutls_uint32touint24 (uint32_t num);
  39 uint32_t _gnutls_read_uint32 (const opaque * data);
  40 uint16_t _gnutls_read_uint16 (const opaque * data);
  41 uint32_t _gnutls_conv_uint32 (uint32_t data);
  42 uint16_t _gnutls_conv_uint16 (uint16_t data);
  43 uint32_t _gnutls_read_uint24 (const opaque * data);
  44 void _gnutls_write_uint24 (uint32_t num, opaque * data);
  45 void _gnutls_write_uint32 (uint32_t num, opaque * data);
  46 void _gnutls_write_uint16 (uint16_t num, opaque * data);
  47 uint32_t _gnutls_uint64touint32 (const uint64 *);
  48
  49 int _gnutls_uint64pp (uint64 *);
  50 # define _gnutls_uint64zero(x) x.i[0] = x.i[1] = x.i[2] = x.i[3] = x.i[4] = x.i[5] = x.i[6] = x.i[7] = 0
  51 # define UINT64DATA(x) x.i