File: byteorder.h

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/*
  Copyright (C) 2000, 2002  Andreas Gruenbacher <agruen@suse.de>

  This program is free software: you can redistribute it and/or modify it
  under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation, either version 2.1 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include <endian.h>

#if __BYTE_ORDER == __BIG_ENDIAN
# define cpu_to_le16(w16) le16_to_cpu(w16)
# define le16_to_cpu(w16) ((u_int16_t)((u_int16_t)(w16) >> 8) | \
                           (u_int16_t)((u_int16_t)(w16) << 8))
# define cpu_to_le32(w32) le32_to_cpu(w32)
# define le32_to_cpu(w32) ((u_int32_t)( (u_int32_t)(w32) >>24) | \
                           (u_int32_t)(((u_int32_t)(w32) >> 8) & 0xFF00) | \
                           (u_int32_t)(((u_int32_t)(w32) << 8) & 0xFF0000) | \
			   (u_int32_t)( (u_int32_t)(w32) <<24))
#elif __BYTE_ORDER == __LITTLE_ENDIAN
# define cpu_to_le16(w16) ((u_int16_t)(w16))
# define le16_to_cpu(w16) ((u_int16_t)(w16))
# define cpu_to_le32(w32) ((u_int32_t)(w32))
# define le32_to_cpu(w32) ((u_int32_t)(w32))
#else
# error unknown endianess?
#endif