winpcap 编程及环境配置

#include <pcap.h>
#include <stdio.h>
#pragma comment(lib, "ws2_32.lib")

void main()
{
    char erro_content[PCAP_ERRBUF_SIZE];
    struct in_addr net_ip_address;
    struct in_addr net_mask_address;
    char *net_interface=NULL;
    char *net_ip_string=NULL;
    char *net_mask_string=NULL;
    pcap_if_t *alldevs;
    pcap_if_t *d;

    u_int32_t net_ip;
    u_int32_t net_mask;
    //net_interface = pcap_lookupdev(erro_content);
    if (pcap_findalldevs_ex(PCAP_SRC_IF_STRING, NULL , &alldevs, erro_content) == -1)
    {
        printf("查找网卡错误！%s\n", erro_content);
        return;
    }
    for (d=alldevs; d; d=d->next)
    {
        printf("%s\n",d->name);  
        printf("Description: %s\n",d->description); 
        pcap_lookupnet(d->name, &net_ip, &net_mask, erro_content);
        net_ip_address.s_addr = net_ip;
        net_ip_string = inet_ntoa(net_ip_address);
        printf("网络地址:%s\n", net_ip_string);
        net_mask_address.s_addr = net_mask;
        net_mask_string = inet_ntoa(net_mask_address);
        printf("网路掩码:%s\n", net_mask_string);
    }
    pcap_freealldevs(alldevs); 
    system("pause");
    return;
}