Get MAC address using C
不過 , 這邊有指定 eth0 , 若 server 有很多 interface 的話就要注意一下了.
#include <stdio.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <net/if.h>
int main( int argc, char *argv[] )
{
int s;
struct ifreq buffer;
s = socket(PF_INET, SOCK_DGRAM, 0);
memset(&buffer, 0x00, sizeof(buffer));
strcpy(buffer.ifr_name, "eth0");
ioctl(s, SIOCGIFHWADDR, &buffer);
close(s);
for( s = 0; s < 6; s++ )
{
printf("%.2X ", (unsigned char)buffer.ifr_hwaddr.sa_data[s]);
}
printf("\n");
return 0;
}
