🚀 go-pugleaf

cz@silver.lcs.mit.edu (Christopher R. Zach) writes:

>The subject says it all: How does one get the Ethernet Hardware address into
>a C program?


The program below should do what you want.
And no, I didn't write it, I picked it up on the net in one of
the Sun newsgroups (I think) a couple months ago.  Sorry I can't
give credit where it's due,

#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
main()
{       char hname[65];
        struct ether_addr ea;
        gethostname(hname, sizeof(hname));
        ether_hostton(hname, &ea);
        printf("%s\n", ether_ntoa(&ea));
}