2 * Copyright (C) 2013 IBM Corporation
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include <util/util.h>
24 void mac_str(uint8_t *mac, unsigned int maclen, char *buf, unsigned int buflen)
29 assert(buflen > sizeof("unknown"));
31 if (!maclen || maclen * 3 + 1 > buflen) {
32 strcpy(buf, "unknown");
38 for (i = 0; i < maclen; i++) {
39 snprintf(pos, 4, "%02x:", mac[i]);