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/*
* Linux IEEE 802.15.4 userspace tools
*
* Copyright (C) 2008, 2009 Sismens AG
*
* Written-by: Dmitry Eremin-Solenikov
* Written-by: Sergey Lapin
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <libcommon.h>
#include <errno.h>
#include <stdio.h>
int parse_hw_addr(const char *hw, unsigned char *buf) {
int i = 0;
while (*hw) {
unsigned char c = *(hw++);
switch (c) {
case '0'...'9':
c -= '0';
break;
case 'a'...'f':
c -= 'a' - 10;
break;
case 'A'...'F':
c -= 'A' - 10;
break;
case ':':
case '.':
continue;
default:
fprintf(stderr, "Bad HW address encountered (%c)\n", c);
return -EINVAL;
}
buf[i / 2] = (buf[i/2] & (0xf << (4 * (i % 2)))) | (c << 4 * (1 -i % 2));
i++;
if (i == 16)
return 0;
}
return -EINVAL;
}
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