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/*
* Copyright (C) 2013 IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <string.h>
#include <assert.h>
#include <util/util.h>
static const char hex[] = { '0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'a', 'b', 'c', 'd', 'e', 'f', };
void mac_str(uint8_t *mac, unsigned int maclen, char *buf, unsigned int buflen)
{
unsigned int i;
char *pos;
assert(buflen > sizeof("unknown"));
if (!maclen || maclen * 3 + 1 > buflen) {
strcpy(buf, "unknown");
return;
}
pos = buf;
for (i = 0; i < maclen; i++) {
*(pos++) = hex[mac[i] >> 4 & 0xf];
*(pos++) = hex[mac[i] & 0xf];
*(pos++) = ':';
}
*(pos - 1) = '\0';
return;
}
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