基于wincap的程序.docVIP

include pcap.h #include winsock.h /* void main()//取得网络设备列表 { pcap_if_t *alldevs; pcap_if_t *d; int i=0; char errbuf[PCAP_ERRBUF_SIZE]; //取得网络设备列表 if(pcap_findalldevs(alldevs,errbuf)==-1) { fprintf(stderr,Error in pcap_findalldevs:%s\n,errbuf); exit(1); } //显示网络设备列表 for(d=alldevs;d;d=d-next) { printf(%d,++i); printf( ); printf(%s,d-name); printf( ); if(d-description) printf((%s)\n,d-description); else printf((No description available)\n); } if(i==0) { printf(\nNo interfaces found!Make sure WinPcap is installed.\n); return; } pcap_freealldevs(alldevs); }*/ /*void ifprint(pcap_if_t *d); char *iptos(u_long in); int main()//取得网络设备信息 { pcap_if_t *alldevs; pcap_if_t *d; int i=0; char errbuf[PCAP_ERRBUF_SIZE]; //取得网络设备列表 if(pcap_findalldevs(alldevs,errbuf)==-1) { fprintf(stderr,Error in pcap_findalldevs:%s\n,errbuf); exit(1); } //扫描并显示列表内容 for(d=alldevs;d;d=d-next) ifprint(d); return 1; } void ifprint(pcap_if_t *d) { pcap_addr_t *a; //网络接口名 printf(%s\n,d-name); //网络接口描述 if(d-description) printf(\tDescription: %s\n,d-description); //Loopback地址 printf(\tLoopback:%s\n,(d-flagsPCAP_IF_LOOPBACK)?yes:no); //IP地址 for(a=d-addresses;a;a=a-next) { printf(\tAddress Family:#%d\n,a-addr-sa_family); switch(a-addr-sa_family) { case AF_INET: printf(\tAddress Family Name:AF_INET\n); if(a-addr) printf(\tAddress:%s\n,iptos(((struct sockaddr_in *)a-addr)-sin_addr.s_addr)); if(a-netmask) printf(\tNetmask:%s\n,iptos(((struct sockaddr_in *)a-netmask)-sin_addr.s_addr)); if(a-broadaddr) printf(\tBroadcast Address:%s\n,iptos(((struct sockaddr_in *)a-broadaddr)-sin_addr.s_addr)); if(a-dstaddr) printf(\tDestination Address:%s\n,iptos(((struct sockaddr_in *)a-dstaddr)-sin_addr.s_addr)); break; default: printf(\tAddress Family Name:Unknown\n); break; } } printf(\n); } //数字IP地址转换成字符串 #define IPTOSBUFFERS 12 char *iptos(u_long in) { static char output[IPTOSBUFFERS][3*4+3+1]