char *
arp_lookup(dev, ip, mac)
	unsigned char *dev;
	unsigned char *ip;
	unsigned char *mac;
	CODE:
	  char tmp[20];

	  if(SOCK_TYPE == SOCK_RAW)
	  {
	    arp_lookup_bsd(dev,ip,tmp);
	  }
	  else
	  {
	    arp_lookup_linux(dev,ip,tmp);
	  }

	  mac = tmp;

	OUTPUT:
	mac

##</code><code>##

int arp_lookup_linux(char *dev, char *ip, char *mac)
{
  FILE *fp;
  char ipaddr[100];
  char line[200];
  char hwa[100];
  char mask[100];
  char device[100];
  int num, type, flags;
  
  if(strlen(mac) > 0)
    strcpy(mac,"unkown");
  else
    return -1;