rem: LOG(L_ERR, "ERROR: init_rb: cannot fwd to af %d " "no socket\n", rb->dst.to.s.sa_family);
add: LOG(L_ERR, "ERROR: init_rb: cannot fwd to af %d, proto %d " "no socket\n", rb->dst.to.s.sa_family, proto);
context: int init_rb( struct retr_buf *rb, struct sip_msg *msg){	struct socket_info* send_sock;	struct via_body* via;	int proto;	via=msg->via1;	if (!reply_to_via) {		update_sock_struct_from_ip( &rb->dst.to, msg );		proto=msg->rcv.proto;	} else {		/*init retrans buffer*/		if (update_sock_struct_from_via( &(rb->dst.to), msg, via )==-1) {			LOG(L_ERR, "ERROR: init_rb: cannot lookup reply dst: %.*s\n",				via->host.len, via->host.s );			ser_error=E_BAD_VIA;			return 0;		}		proto=via->proto;	}	rb->dst.proto=proto;	rb->dst.proto_reserved1=msg->rcv.proto_reserved1;	send_sock=get_send_socket(&rb->dst.to, proto);	if (send_sock==0) {		LOG(L_ERR, "ERROR: init_rb: cannot fwd to af %d "			"no socket\n", rb->dst.to.s.sa_family);		ser_error=E_BAD_VIA;		return 0;	}	rb->dst.send_sock=send_sock;	    return 1;}