release/src/router/nettle/nettle-write.h

   1 /* nettle-write.h
   2  *
   3  * Prototypes for some internal functions to write out word-sized data
   4  * to byte arrays. */
   5
   6 /* nettle, low-level cryptographics library
   7  *
   8  * Copyright (C) 2010 Niels Möller
   9  *
  10  * The nettle library is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU Lesser General Public License as published by
  12  * the Free Software Foundation; either version 2.1 of the License, or (at your
  13  * option) any later version.
  14  *
  15  * The nettle library is distributed in the hope that it will be useful, but
  16  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  17  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
  18  * License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public License
  21  * along with the nettle library; see the file COPYING.LIB.  If not, write to
  22  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  23  * MA 02111-1301, USA.
  24  */
  25
  26 #ifndef NETTLE_WRITE_H_INCLUDED
  27 #define NETTLE_WRITE_H_INCLUDED
  28
  29 #include "nettle-stdint.h"
  30
  31 /* Write the word array at SRC to the byte array at DST, using little
  32    endian (le) or big endian (be) byte order, and truncating the
  33    result to LENGTH bytes. */
  34
  35 /* FIXME: Use a macro shortcut to memcpy for native endianness. */
  36 void
  37 _nettle_write_be32(unsigned length, uint8_t *dst,
  38                    uint32_t *src);
  39 void
  40 _nettle_write_le32(unsigned length, uint8_t *dst,
  41                    uint32_t *src);
  42
  43 void
  44 _nettle_write_le64(unsigned length, uint8_t *dst,
  45                    uint64_t *src);
  46
  47 #endif /* NETTLE_WRITE_H_INCLUDED */