int netdev_tap::recv_dev(UINT8 **buf)
{
int len;
if(m_fd == -1) return 0;
// exit if we didn't receive anything, got an error, got a broadcast or multicast packet,
// are in promiscuous mode or got a packet with our mac.
do {
len = read(m_fd, m_buf, sizeof(m_buf));
} while((len > 0) && memcmp(get_mac(), m_buf, 6) && !get_promisc() && !(m_buf[0] & 1));
*buf = m_buf;
return (len == -1)?0:len;
}
void netdev::recv(void *ptr, int param)
{
UINT8 *buf;
int len;
while((len = recv_dev(&buf)))
{
if(buf[0] & 1)
{
if(memcmp("\xff\xff\xff\xff\xff\xff", buf, 6) && !m_dev->mcast_chk(buf, len)) continue;
}
else
if(memcmp(get_mac(), buf, 6) && !get_promisc()) continue;
m_dev->recv_cb(buf, len);
}
}
void osd_netdev::recv(void *ptr, int param)
{
UINT8 *buf;
int len;
//const char atalkmac[] = { 0x09, 0x00, 0x07, 0xff, 0xff, 0xff };
while((!m_stop) && (len = recv_dev(&buf)))
{
#if 0
if(buf[0] & 1)
{
if(memcmp("\xff\xff\xff\xff\xff\xff", buf, 6) && memcmp(atalkmac, buf, 6) && !m_dev->mcast_chk(buf, len)) continue;
}
else {
//const unsigned char *ourmac = (const unsigned char *)get_mac();
//printf("our mac: %.2X:%.2X:%.2X:%.2X:%.2X:%.2X dst mac: %.2X:%.2X:%.2X:%.2X:%.2X:%.2X\n", ourmac[0], ourmac[1], ourmac[2], ourmac[3], ourmac[4], ourmac[5], buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
if(memcmp(get_mac(), buf, 6) && !get_promisc()) continue;
}
#endif
m_dev->recv_cb(buf, len);
}
}