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connect the UDP pcb to the DNS server (IPaddress and port) to receive faster (unconnected pcbs are very inefficient in udp_input)

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goldsimon 2007-11-30 12:46:30 +00:00
parent b28cd02149
commit 92aa004b75
1 changed files with 2 additions and 0 deletions
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2
src/core/dns.c
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@ -464,6 +464,8 @@ dns_send(u8_t numdns, const char* name, u8_t id)
/* resize pbuf to the exact dns query */
pbuf_realloc(p, (query + sizeof(struct dns_query)) - ((char*)(p->payload)));
/* connect to the server for faster receiving */
udp_connect(dns_pcb, &dns_servers[numdns], DNS_SERVER_PORT);
/* send dns packet */
err = udp_sendto(dns_pcb, p, &dns_servers[numdns], DNS_SERVER_PORT);