if (server == NULL) { printf("No server available!\n"); return; }
quip_printfilter(const char *ifname, const u_long handle){	char buf[BODY_MAXSIZE], req[REQ_MAXSIZE], *cp;	int result_code, len;	/* get qdisc info from the server */	snprintf(req, sizeof(req), "GET filter?%s::%#lx\n", ifname, handle);	quip_sendrequest(server, req);	result_code = quip_recvresponse(server, NULL, buf, &len);	if (result_code != 200)		errx(1, "can't get filter info");	if ((cp = strchr(buf, '\n')) != NULL)		*cp = '\0';	printf("%s", buf);}