winpcap 枚举网络设备

// SynFl.cpp : 定义控制台应用程序的入口点。
//
#include "stdafx.h"
 #pragma comment(lib,"ws2_32.lib")
#ifdef _MSC_VER
/*
 * we do not want the warnings about the old deprecated and unsecure CRT functions
 * since these examples can be compiled under *nix as well
 */
#define _CRT_SECURE_NO_WARNINGS
#endif

#include "pcap.h"

#ifndef WIN32
#include <sys/socket.h>
#include <netinet/in.h>
#else
#include <winsock.h>
#endif


// Function prototypes
void ifprint(pcap_if_t *d);
char *iptos(u_long in);
char* ip6tos(struct sockaddr *sockaddr, char *address, int addrlen);


int main()
{
pcap_if_t *alldevs;
pcap_if_t *d;
char errbuf[PCAP_ERRBUF_SIZE+1];
/* Retrieve the device list */
if(pcap_findalldevs(&alldevs, errbuf) == -1)
{
fprintf(stderr,"Error in pcap_findalldevs: %s\n", errbuf);
exit(1);
}
/* Scan the list printing every entry */
for(d=alldevs;d;d=d->next)
{
ifprint(d);
}

/* Free the device list */
pcap_freealldevs(alldevs);

return 1;
}



/* Print all the available information on the given interface */
void ifprint(pcap_if_t *d)
{
  pcap_addr_t *a;
  char ip6str[128];

  /* Name */
  printf("%s\n",d->name);

  /* Description */
  if (d->description)
    printf("\tDescription: %s\n",d->description);

  /* Loopback Address*/
  printf("\tLoopback: %s\n",(d->flags & PCAP_IF_LOOPBACK)?"yes":"no");

  /* IP addresses */
  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;

 case AF_INET6:
       printf("\tAddress Family Name: AF_INET6\n");
#ifndef __MINGW32__ /* Cygnus doesn't have IPv6 */
        if (a->addr)
          printf("\tAddress: %s\n", ip6tos(a->addr, ip6str, sizeof(ip6str)));
#endif
break;

 default:
        printf("\tAddress Family Name: Unknown\n");
        break;
    }
  }
  printf("\n");
}

/* From tcptraceroute, convert a numeric IP address to a string */
#define IPTOSBUFFERS 12
char *iptos(u_long in)
{
static char output[IPTOSBUFFERS][3*4+3+1];
static short which;
u_char *p;

p = (u_char *)&in;
which = (which + 1 == IPTOSBUFFERS ? 0 : which + 1);
sprintf(output[which], "%d.%d.%d.%d", p[0], p[1], p[2], p[3]);
return output[which];
}

#ifndef __MINGW32__ /* Cygnus doesn't have IPv6 */
char* ip6tos(struct sockaddr *sockaddr, char *address, int addrlen)
{
socklen_t sockaddrlen;

#ifdef WIN32
sockaddrlen = sizeof(struct sockaddr_in6);
#else
sockaddrlen = sizeof(struct sockaddr_storage);
#endif


if(getnameinfo(sockaddr, 
sockaddrlen, 
address, 
addrlen, 
NULL, 
0, 
NI_NUMERICHOST) != 0) address = NULL;

return address;
}
#endif /* __MINGW32__ */
//注:win7 (64)下无效,原因不明
//附 vc 使用winpcap 配置
VC6.0中使用winpcap
1.下载winpcap的安装包,程序员开发包。
2.执行安装包,这样你的机子就能运行winpcap程序了
3.解压开发包,在VC的option的include和lib中加入winpcap的include和lib
4. 在工程的setting中导入wpcap.lib和Packet.lib库
VS .net中使用winpcap
1、在项目-〉属性    -〉C++    -〉常规标签的附加包含目录中包含WinPcap的Include目录   
2、在项目-〉属性    -〉链接器    -〉输入标签的附加依赖项中添加lib库文件

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