my_bool my_gethwaddr(uchar *to)
{
size_t len;
uchar *buf, *next, *end, *addr;
struct if_msghdr *ifm;
struct sockaddr_dl *sdl;
int i, res=1, mib[6]={CTL_NET, AF_ROUTE, 0, AF_LINK, NET_RT_IFLIST, 0};
if (sysctl(mib, 6, NULL, &len, NULL, 0) == -1)
goto err;
if (!(buf = alloca(len)))
goto err;
if (sysctl(mib, 6, buf, &len, NULL, 0) < 0)
goto err;
end = buf + len;
for (next = buf ; res && next < end ; next += ifm->ifm_msglen)
{
ifm = (struct if_msghdr *)next;
if (ifm->ifm_type == RTM_IFINFO)
{
sdl = (struct sockaddr_dl *)(ifm + 1);
addr=LLADDR(sdl);
res=memcpy_and_test(to, addr, ETHER_ADDR_LEN);
}
}
err:
return res;
}
my_bool my_gethwaddr(uchar *to)
{
my_bool res= 1;
IP_ADAPTER_INFO *info= NULL;
ULONG info_len= 0;
if (GetAdaptersInfo(info, &info_len) != ERROR_BUFFER_OVERFLOW)
goto err;
info= (IP_ADAPTER_INFO *)alloca(info_len);
if (GetAdaptersInfo(info, &info_len) != NO_ERROR)
goto err;
while (info && res)
{
if (info->Type == MIB_IF_TYPE_ETHERNET &&
info->AddressLength == ETHER_ADDR_LEN)
{
res= memcpy_and_test(to, info->Address, ETHER_ADDR_LEN);
}
info = info->Next;
}
err:
return res;
}
my_bool my_gethwaddr(uchar *to)
{
int fd, res= 1;
struct ifreq ifr[32];
struct ifconf ifc;
ifc.ifc_req= ifr;
ifc.ifc_len= sizeof(ifr);
fd = socket(AF_INET, SOCK_DGRAM, 0);
if (fd < 0)
goto err;
if (ioctl(fd, SIOCGIFCONF, (char*)&ifc) >= 0)
{
uint i;
for (i= 0; res && i < ifc.ifc_len / sizeof(ifr[0]); i++)
{
#ifdef __linux__
if (ioctl(fd, SIOCGIFHWADDR, &ifr[i]) >= 0)
res= memcpy_and_test(to, (uchar *)&ifr[i].ifr_hwaddr.sa_data,
ETHER_ADDR_LEN);
#else
/*
A bug in OpenSolaris used to prevent non-root from getting a mac address:
{no url. Oracle killed the old OpenSolaris bug database}
Thus, we'll use an alternative method and extract the address from the
arp table.
*/
struct arpreq arpr;
arpr.arp_pa= ifr[i].ifr_addr;
if (ioctl(fd, SIOCGARP, (char*)&arpr) >= 0)
res= memcpy_and_test(to, (uchar *)&arpr.arp_ha.sa_data,
ETHER_ADDR_LEN);
#endif
}
}
close(fd);
err:
return res;
}
my_bool my_gethwaddr(uchar *to)
{
int fd, res=1;
struct ifreq ifr;
fd = socket(AF_INET, SOCK_DGRAM, 0);
if (fd < 0)
goto err;
bzero(&ifr, sizeof(ifr));
strnmov(ifr.ifr_name, "eth0", sizeof(ifr.ifr_name) - 1);
do {
if (ioctl(fd, SIOCGIFHWADDR, &ifr) >= 0)
res=memcpy_and_test(to, (uchar *)&ifr.ifr_hwaddr.sa_data, ETHER_ADDR_LEN);
} while (res && (errno == 0 || errno == ENODEV) && ifr.ifr_name[3]++ < '6');
close(fd);
err:
return res;
}
