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libc/netdb: in dns_query_callback, ret != -EADDRNOTAVAIL condition consumes error returns including EAGAIN in this case, dns query retransmission doesn't work

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Ritajina
2017-04-12 06:41:08 -06:00
committed by Gregory Nutt
parent dced088ff5
commit eab139a539
1 changed files with 2 additions and 2 deletions
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libc/netdb/lib_dnsquery.c
+2 -2
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@@ -494,7 +494,7 @@ static int dns_query_callback(FAR void *arg, FAR struct sockaddr *addr,
nerr("ERROR: IPv4 dns_recv_response failed: %d\n", ret);
if (ret != -EADDRNOTAVAIL)
if (ret == -EADDRNOTAVAIL)
{
/* The IPv4 address is not available. Return zero to
* continue the tranversal with the next nameserver
@@ -575,7 +575,7 @@ static int dns_query_callback(FAR void *arg, FAR struct sockaddr *addr,
nerr("ERROR: IPv6 dns_recv_response failed: %d\n", ret);
if (ret != -EADDRNOTAVAIL)
if (ret == -EADDRNOTAVAIL)
{
/* The IPv6 address is not available. Return zero to
* continue the tranversal with the next nameserver