sock.c

非常使用的基于TDI驱动开发的应用程序过滤 防火墙的例子

// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil -*- (for GNU Emacs)
//
// $Id: sock.c,v 1.2 2002/12/03 12:14:28 dev Exp $

/*
 * Some helpers from sockets
 */

#include <stdlib.h>
#include <string.h>
#include "sock.h"

u_long
ntohl (u_long netlong)
{
	u_long result = 0;
	((char *)&result)[0] = ((char *)&netlong)[3];
	((char *)&result)[1] = ((char *)&netlong)[2];
	((char *)&result)[2] = ((char *)&netlong)[1];
	((char *)&result)[3] = ((char *)&netlong)[0];
	return result;
}

u_short
ntohs (u_short netshort)
{
	u_short result = 0;
	((char *)&result)[0] = ((char *)&netshort)[1];
	((char *)&result)[1] = ((char *)&netshort)[0];
	return result;
}