WinPcap 获取本地适配器信息

开始学习WinPcap的相关开发

从最简单的开始, 获取本地的网卡信息

#include <stdio.h>
#include <stdlib.h>

#define HAVE_REMOTE
#include <pcap.h>

#pragma comment(lib,"wpcap.lib")

int _tmain(int argc, _TCHAR* argv[])
{
	pcap_if_t *alldevs;
	pcap_if_t *d;
	int i = 0;
	char errbuf[PCAP_ERRBUF_SIZE];

	/* get local devices */
	if(pcap_findalldevs_ex(PCAP_SRC_IF_STRING, NULL, &alldevs, errbuf) == -1)
	{
		fprintf(stderr, "Error in pcap_findalldevs_ex: %s\n", errbuf);
		exit(1);
	}

	/* print devices list */
	for(d = alldevs; d != NULL; d = d->next)
	{
		printf("%d. %s", ++i, d->name);
		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 -1;
	}

	pcap_freealldevs(alldevs);

	getchar();

	return 0;
}