arpsproof源码..doc

Arpsproof 源码 // saga.constantine编写 2006.4.20 //printf(have run to here!!!\n); 我自己的习惯,调试的时候好复制到程序中调试用! #include stdlib.h #include stdio.h #include pcap.h //winpcap的头文件 #include winsock2.h #include process.h //多线程编程的头文件 #include windows.h #include Iphlpapi.h //提取网关用的头文件 #pragma comment(lib,ws2_32) #pragma comment(lib,pcap) #pragma comment(lib,IPHlpApi) //////////////////////////////////////////////////////////////////// #define IPTOSBUFFERS 12 #define MOSTCHEATNUMBER 256 //最大的欺骗数目 #define ETH_IP 0x0800 //定义各种标识的数值 #define ETH_ARP 0x0806 #define ARP_REPLY 0x0002 #define ARP_REQUEST 0x0001 #define ARP_HARDWARE 0x0001 ///////////////////////////////////////////////////////////////////// typedef struct ethdr //以太头结构 { unsigned char eh_dst[6]; unsigned char eh_src[6]; unsigned short eh_type; }ETHDR,*PETHDR; typedef struct arphdr //arp头结构 { unsigned short arp_hdr; unsigned short arp_pro; unsigned char arp_hln; unsigned char arp_pln; unsigned short arp_opt; unsigned char arp_sha[6]; unsigned long arp_spa; unsigned char arp_tha[6]; unsigned long arp_tpa; }ARPHDR,*PARPHDR; typedef struct acttiveIpwithMac //用于存储ip与对应mac的结构 { acttiveIpwithMac* next; unsigned long ip; unsigned char mac[6]; }acttiveIpwithMac,*PacttiveIpwithMac; //////////////////////////////////////////////////////////////////////////// char *iptos(u_long in); //用来将网络的ip地址转换成4字节形式 void ifprint(pcap_if_t *d); //显示pcap_if结构的信息 int macequal(PacttiveIpwithMac m,PacttiveIpwithMac n); //判断两个mac是否相同 int getmmac(); //获得自己mac的函数.用pcap实现.当让还可以用GetAdaptersInfo来获得 unsigned int _stdcall sendpackettogetallacttiveIpwithMac(void *x); //向局域网内发arp请求包扫描 unsigned int _stdcall recvpackettogeta