text: /*
   * Copyright (C) 2010-2014 by Joseph A. Marrero. http://www.manvscode.com/
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   * THE SOFTWARE.
   */
  #include <stdlib.h>
  #include <stdbool.h>
  #include "libxtd-config.h"
  
  typedef union two_bytes {
  	unsigned short s;
  	unsigned char bytes[ 2 ];
  } two_bytes_t;
  
  
  bool is_big_endian( void )
  {
  	two_bytes_t check;
  	check.s = 1;
  
  	if( check.bytes[ 0 ] == 1 )
  	{
  		return false; /* little endian */
  	}
  
  	return true;
  }
  
  void swap_every_two_bytes( void* mem, size_t size )
  {
  	unsigned char* buffer = (unsigned char*) mem;
  
  	/* If we have an odd number of bytes, then
  	 * we subtract 1 and swap up until that size.
  	 */
  	size -= (size % 2);
  
  	for( size_t i = 0; i < size - 1; i += 2 )
  	{
  		unsigned char tmp = buffer[ i ];
  		buffer[ i ] = buffer[ i + 1];
  		buffer[ i + 1 ] = tmp;
  	}
  }
  
  void hton( void* mem, size_t size )
  {
  	#ifndef WORDS_BIGENDIAN
  	if( !is_big_endian( ) )
  	{
  		swap_every_two_bytes( mem, size );
  	}
  	#endif
  }
  
  void ntoh( void* mem, size_t size )
  {
  	#ifndef WORDS_BIGENDIAN
  	if( !is_big_endian( ) )
  	{
  		swap_every_two_bytes( mem, size );
  	}
  	#endif
  }
  