Lines Matching refs:dns_pcb

219 static struct udp_pcb        *dns_pcb;
244   if (dns_pcb == NULL) {
245     dns_pcb = udp_new();
247     if (dns_pcb != NULL) {
254       udp_bind(dns_pcb, IP_ADDR_ANY, 0);
255       udp_recv(dns_pcb, dns_recv, NULL);
275   if ((numdns < DNS_MAX_SERVERS) && (dns_pcb != NULL) &&
305   if (dns_pcb != NULL) {
613     udp_connect(dns_pcb, &dns_servers[numdns], DNS_SERVER_PORT);
615     err = udp_sendto(dns_pcb, p, &dns_servers[numdns], DNS_SERVER_PORT);
942   if ((dns_pcb == NULL) || (addr == NULL) ||