rem: return udp_send( rb->send_sock, buf, len, &rb->to,  sizeof(union sockaddr_union) ) ;
add: return udp_send( rb->send_sock, buf, len, &rb->to) ;
context: int send_pr_buffer( struct retr_buf *rb,	void *buf, int len, char *function, int line ){	if (buf && len && rb )		return udp_send( rb->send_sock, buf,			len, &rb->to,  sizeof(union sockaddr_union) ) ;	else {		LOG(L_CRIT, "ERROR: sending an empty buffer from %s (%d)\n",			function, line );		return -1;	}}