--- libelwix/src/net.c	2013/06/20 14:55:23	1.6
+++ libelwix/src/net.c	2013/07/08 11:45:01	1.6.4.2
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@elwix.org>
 *
 * $Author: misho $
-* $Id: net.c,v 1.6 2013/06/20 14:55:23 misho Exp $
+* $Id: net.c,v 1.6.4.2 2013/07/08 11:45:01 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -100,7 +100,7 @@ e_link_ntoa(const struct sockaddr_dl *sdl)
  * return: NULL error or !=NULL string a
  */
 char *
-e_ether_ntoa(const struct e_ether_addr *n, char * __restrict a, int len)
+e_ether_ntoa(const ether_addr_t * __restrict n, char * __restrict a, int len)
 {
 	if (!n || !a)
 		return NULL;
@@ -122,8 +122,8 @@ e_ether_ntoa(const struct e_ether_addr *n, char * __re
  * @e = ethernet address structure, like struct ether_addr
  * return: NULL error or !=NULL ethernet address structure
  */
-struct e_ether_addr *
-e_ether_aton(const char *a, struct e_ether_addr *e)
+ether_addr_t *
+e_ether_aton(const char *a, ether_addr_t * __restrict e)
 {                       
 	int i;
 	u_int o0, o1, o2, o3, o4, o5;
@@ -437,4 +437,38 @@ e_getnet(const char *net)
 
 	e_free(str);
 	return n;
+}
+
+/*
+ * e_ether_addr() - Get or set ethernet address from interface name
+ *
+ * @ifname = interface name
+ * @addr = if addr is !=NULL then set this for new address
+ * return: NULL error or !=NULL get ethernet address
+ */
+ether_addr_t *
+e_ether_addr(const char *ifname, ether_addr_t * __restrict addr)
+{
+	ether_addr_t *a = NULL;
+	struct ifaddrs *p, *ifa = NULL;
+
+	if (!ifname)
+		return NULL;
+
+	a = e_malloc(sizeof(ether_addr_t));
+	if (!a)
+		return NULL;
+	else
+		memset(a, 0, sizeof(ether_addr_t));
+
+	getifaddrs(&ifa);
+	for (p = ifa; p && p->ifa_name; p++)
+		if (p->ifa_name && !strcmp(p->ifa_name, ifname) && p->ifa_addr && 
+				p->ifa_addr->sa_family == AF_LINK) {
+			memcpy(a, LLADDR((struct sockaddr_dl*) p->ifa_addr), sizeof(ether_addr_t));
+			break;
+		}
+	freeifaddrs(ifa);
+
+	return a;
 }