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/*
* Copyright (c) 2014 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Dornierstr. 4
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <rtems/bsd/util.h>
#include <sys/cdefs.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <net/if_dl.h>
#include <errno.h>
#include <ifaddrs.h>
#include <string.h>
int
rtems_bsd_get_ethernet_addr(const char *ifname, uint8_t eaddr[ETHER_ADDR_LEN])
{
int rv;
struct ifaddrs *ifa;
rv = getifaddrs(&ifa);
if (rv == 0) {
struct ifaddrs *cur;
for (cur = ifa; cur != NULL; cur = cur->ifa_next) {
if (strcmp(cur->ifa_name, ifname) == 0 &&
cur->ifa_addr->sa_family == AF_LINK) {
const struct sockaddr_dl *dl =
(const struct sockaddr_dl *) cur->ifa_addr;
memcpy(&eaddr[0], LLADDR(dl), ETHER_ADDR_LEN);
break;
}
}
freeifaddrs(ifa);
if (cur == NULL) {
errno = ENXIO;
rv = -1;
}
}
return rv;
}
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