/* printEtherAddrs.c - Prints the ethernet address of a network *                     interface on the VxWorks target *//* Copyright 1984-1997 Wind River Systems, Inc. *//*modification history--------------------01c,06nov97,mm   added copyright.01b,15Sep97,mm   included <string.h> and changed "if.h" to "net/if.h"01a,16Feb93,ms   written*/#include <string.h>#include "vxWorks.h"#include "stdio.h"#include "net/if.h"#include "etherLib.h"/***************************************************************************** * printEtherAddrs - Demo for printing the ethernet address of the network *                   interface in the VxWorks target. * * EXAMPLE: * *     To run printEtherAddrs from the VxWorks shell do as follows:  * *     ->  printEtherAddrs ("nameOfTheNetworkInterface") * *     where nameOfTheNetworkInterface is the name of the network *     interface in your the VxWorks target (Eg: "ln0") * */   void printEtherAddrs     (    char *netIfName        /* name of the network interface */    )    {    struct ifnet    *ifPtr; /* Pointer to network interface's ifnet struct */    unsigned char enet[6];  /* This is a temporary variable used in this demo                             * for storing the Ethernet address of the network                             * interface.                             */                                if ((ifPtr = ifunit (netIfName)) == NULL)        printf ("Interface not found \n");    else        {               /* get the ethernet address from the arpcom structure (arpcom         * structure is shared between the network interface          * driver and address resolution code) and print it. The first data         * element in an arpcom structure (vw/h/netinet/if_ether.h) is an          * ifnet structure (vw/h/net/if.h) (hence the address of arpcom and          * ifnet structures are the same for any given network).          */        bcopy ((char *) ((struct arpcom *) ifPtr)->ac_enaddr, enet,                 sizeof (enet));         printf(" Ethernet address is %02x:%02x:%02x:%02x:%02x:%02x\n",                  enet [0], enet [1], enet [2], enet [3], enet [4], enet[5]);	}    }