獲取網絡卡名稱 linux c
阿新 • • 發佈：2018-12-31
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <string.h>
#include <net/if.h>
#include <sys/ioctl.h>
int main()
{
int i=0;
int sockfd;
struct ifconf ifc;
unsigned char buf[512];
struct ifreq *ifr;
//初始化ifconf
ifc.ifc_len = 512;
ifc.ifc_buf = buf;
if((sockfd = socket(AF_INET, SOCK_DGRAM, 0))<0)
{
perror("socket");
exit(1);
}
ioctl(sockfd, SIOCGIFCONF, &ifconf); //獲取所有介面資訊
//接下來獲取逐個網絡卡的名稱和IP地址
ifr = (struct ifreq*)buf;
for(i=(ifc.ifc_len/sizeof(struct ifreq)); i>0; i--)
{
printf("name = [%s]\n", ifreq->ifr_name);
}
#include <stdlib.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <string.h>
#include <net/if.h>
#include <sys/ioctl.h>
int main()
{
int i=0;
int sockfd;
struct ifconf ifc;
unsigned char buf[512];
struct ifreq *ifr;
//初始化ifconf
ifc.ifc_len = 512;
ifc.ifc_buf = buf;
if((sockfd = socket(AF_INET, SOCK_DGRAM, 0))<0)
{
perror("socket");
exit(1);
}
ioctl(sockfd, SIOCGIFCONF, &ifconf); //獲取所有介面資訊
//接下來獲取逐個網絡卡的名稱和IP地址
ifr = (struct ifreq*)buf;
for(i=(ifc.ifc_len/sizeof(struct ifreq)); i>0; i--)
{
printf("name = [%s]\n", ifreq->ifr_name);
printf("local addr = [%s]\n", inet_ntoa(((struct sockaddr_in*)&(ifreq->ifr_addr))->sin_addr));
ifr++;
}
return 0;}