@Override
public int send(ByteBuffer src, SocketAddress target) throws IOException {
UnixSocketAddress remote = null;
if (null == target) {
if (isConnected()) {
remote = remoteAddress;
} else {
throw new IllegalArgumentException(
"Destination address cannot be null on unconnected datagram sockets");
}
} else {
if (!(target instanceof UnixSocketAddress)) {
throw new UnsupportedAddressTypeException();
}
remote = (UnixSocketAddress) target;
}
SockAddrUnix sa = (null == remote) ? null : remote.getStruct();
int addrlen = (null == sa) ? 0 : sa.length();
int n = Native.sendto(getFD(), src, sa, addrlen);
if (n < 0) {
throw new IOException(Native.getLastErrorString());
}
return n;
}
