ARP.rar_arp_arp 检测

#include "pcap.h" #include <remote-ext.h> #include "stdio.h" #pragma comment(lib,"wpcap.lib") #pragma comment(lib,"ws2_32.lib") #pragma pack (1) pcap_if_t * NetCardChoose() { pcap_if_t *alldevs; pcap_if_t *d; char errbuf[PCAP_ERRBUF_SIZE]; int num; int i=0; if (pcap_findalldevs_ex(PCAP_SRC_IF_STRING, NULL /* auth is not needed */, &alldevs, errbuf) == -1) { fprintf(stderr,"Error in pcap_findalldevs_ex: %s\n", errbuf); return -1; } /* Print the list */ for(d= alldevs; d != NULL; d= d->next) { if (d->description) printf(" %d��(%s)\n", ++i,d->description); else printf(" (No description available)\n"); } if (i == 0) { printf("\nNo interfaces found! Make sure WinPcap is installed.\n"); return -1; } scanf_s("%d",&num,4); if(num<1||num>i) { printf("ERROR,have no this one"); return -1; } for(d=alldevs,i=1;i<num;i++) d=d->next; return d; }