IP数据包过滤，过滤端口、黑名单、网段等（修改后的全部源码）

/** * 规则函数： addRule(char *driver_name,USHORT type,USHORT protocol,char *sourceIp,char *sourceMask,USHORT sourcePort, char *destinationIp, char *destinationMask, USHORT destinationPort,BOOLEAN isDrop)； * 规则说明： * type：参数 * LOCAL_PORT_FILTER类型： 端口过滤。 * BLANK_IP_FILTER类型： IP黑名单过滤。 * NET_FILTER类型：子网过滤。 *

#include 
#include “ctr_filter.h“
#include “IPPackageFilter.h“


unsigned long inet_addr（const char *sIp）
{
	int octets[4];
	int i;
	const char * auxCad = sIp;
	unsigned long lIp = 0;
	
	//we extract each octet of the ip address
	//atoi will get characters until it found a non numeric character（in our case ‘.‘）
	for（i = 0; i < 4; i++）
	{
		octets[i] = atoi（auxCad）;

		if（octets[i] < 0 || octets[i] > 255）
			return 0;

		lIp |= （octets[i] << （i*8））;

		//update auxCad to point to the next octet
		auxCad = strchr（auxCad ‘.‘）;

		if（auxCad == NULL && i!=3）
			return -1;

		auxCad++;
	}


	return lIp;
}




unsigned short htons（unsigned short port）
{
	unsigned short portRet;

	portRet = （（port << 8） | （port >> 8））;

	return portRet;

 属性            大小     日期    时间   名称
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     目录          0  2009-01-05 15:04  例子

     目录          0  2009-01-05 15:04  例子\ctr_test

     目录          0  2009-01-05 15:04  例子\ctr_test\ctr_test

     文件       5411  2009-01-05 14:52  例子\ctr_test\ctr_test\ctr_filter.cpp

     文件        119  2008-12-30 14:21  例子\ctr_test\ctr_test\ctr_filter.h

     文件       3669  2008-12-30 16:34  例子\ctr_test\ctr_test\ctr_test.vcproj

     目录          0  2009-01-05 15:04  例子\ctr_test\ctr_test\Debug

     文件       2203  2009-01-05 15:03  例子\ctr_test\ctr_test\Debug\BuildLog.htm

     文件     123832  2009-01-05 15:03  例子\ctr_test\ctr_test\Debug\ctr_filter.obj

     文件     118784  2009-01-05 15:03  例子\ctr_test\ctr_test\Debug\ctr_test.exe

     文件     703312  2009-01-05 15:03  例子\ctr_test\ctr_test\Debug\ctr_test.ilk

     文件    2706432  2009-01-05 15:03  例子\ctr_test\ctr_test\Debug\ctr_test.pdb

     文件     131091  2009-01-05 15:03  例子\ctr_test\ctr_test\Debug\TDriver.obj

     文件     691200  2009-01-05 15:03  例子\ctr_test\ctr_test\Debug\vc70.idb

     文件     479232  2009-01-05 15:03  例子\ctr_test\ctr_test\Debug\vc70.pdb

     文件       3001  2009-01-05 14:33  例子\ctr_test\ctr_test\IPPackageFilter.h

     文件       1587  2008-11-19 10:21  例子\ctr_test\ctr_test\stdafx.h

     文件      15533  2008-11-20 14:01  例子\ctr_test\ctr_test\TDriver.cpp

     文件       2973  2008-11-20 14:02  例子\ctr_test\ctr_test\TDriver.h

     文件      60416  2009-01-05 15:04  例子\ctr_test\ctr_test.ncb

     文件        914  2008-12-30 15:46  例子\ctr_test\ctr_test.sln

    ..A..H.     11264  2009-01-05 15:04  例子\ctr_test\ctr_test.suo

     目录          0  2009-01-05 15:00  例子\IPPackageFilter

     目录          0  2009-01-05 15:00  例子\IPPackageFilter\IPPackageFilter

     文件       1826  2009-01-05 15:02  例子\IPPackageFilter\IPPackageFilter\buildchk.log

     文件       3142  2009-01-05 15:02  例子\IPPackageFilter\IPPackageFilter\BuildLog.htm

     文件         20  2008-12-18 09:34  例子\IPPackageFilter\IPPackageFilter\ddkbldenv.cmd

     文件        222  2008-12-18 09:34  例子\IPPackageFilter\IPPackageFilter\ddkpostbld.cmd

     文件         70  2008-12-18 09:34  例子\IPPackageFilter\IPPackageFilter\ddkprebld.cmd

     文件      19433  2009-01-05 14:25  例子\IPPackageFilter\IPPackageFilter\IPPackageFilter.c

............此处省略17个文件信息