1 #include <stdio.h>
2 #include <string.h>
3
4 #include <sys/types.h>
5 #include <sys/socket.h>
6 #include <sys/ioctl.h>
7 #include <netinet/in.h>
8 #include <net/if.h>
9
10 int
11 main()
12 {
13 int fd;
14 struct ifreq ifr;
15
16 fd = socket(AF_INET, SOCK_DGRAM, 0);
17
18 ifr.ifr_addr.sa_family = AF_INET;
19 strncpy(ifr.ifr_name, "eth0", IFNAMSIZ-1);
20
21 ioctl(fd, SIOCGIFHWADDR, &ifr);
22
23 close(fd);
24
25 printf("%.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
26 (unsigned char)ifr.ifr_hwaddr.sa_data[0],
27 (unsigned char)ifr.ifr_hwaddr.sa_data[1],
28 (unsigned char)ifr.ifr_hwaddr.sa_data[2],
29 (unsigned char)ifr.ifr_hwaddr.sa_data[3],
30 (unsigned char)ifr.ifr_hwaddr.sa_data[4],
31 (unsigned char)ifr.ifr_hwaddr.sa_data[5]);
32
33 return 0;
34 }
引用http://blog.csdn.net/nbda1121440/article/details/8963352
