|
case 'a':high=10;
break;
case 'b':high=11;
break;
case 'c':high=12;
break;
case 'd':high=13;
break;
case 'e':high=14;
break;
case 'f':high=15;
break;
default:temp=*str;
high=atoi(&temp);
}
switch(*str1)
{
case 'a':low=10;
break;
case 'b':low=11;
break;
case 'c':low=12;
break;
case 'd':low=13;
break;
case 'e':low=14;
break;
case 'f':low=15;
break;
default:temp=*str1;
low=atoi(&temp);
}
mac[i]=high*16+low;
str+=2;
}
}
void AssayAndSendData(LPPACKET lpPacket)
{
char *buf;
bpf_hdr *lpBpfhdr;
ET_HEADER *lpEthdr;
in_addr addr={0};
buf=(char *)lpPacket->Buffer;
lpBpfhdr=(bpf_hdr *)buf;
lpEthdr=(ET_HEADER *)(buf+lpBpfhdr->bh_hdrlen);
if(lpEthdr->eh_type==htons(0x0800)) //判断是否为IP包
{
IP_HEADER *lpIphdr=(IP_HEADER *)(buf+lpBpfhdr->bh_hdrlen+sizeof(ET_HEADER));
if( ( inet_addr(SIMULATE_IP)==lpIphdr->m_dIP ) && ( inet_addr(TARGET_IP)==lpIphdr->m_sIP ) && (lpIphdr->m_protocol==IPPROTO_TCP) ) //判断所收到的数据包的传输层协议、源及目的IP
{
TCP_HEADER *lpTcphdr=(TCP_HEADER *)(buf+lpBpfhdr->bh_hdrlen+sizeof(ET_HEADER)+sizeof(IP_HEADER));
if( ( (lpTcphdr->m_res2_flag & 0x10)!=0 ) && ( lpTcphdr->m_win!=0 ) ) //判断是否为带ACK标记的包并判断目标主机接收窗口是否已为0
{
char s_mac[6]={0},d_mac[6]={ 上一页 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] ... 下一页 >> |
