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Check if DNS server has been initialized before trying to lookup the server address in the cache. From Librae

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Librae 2015-07-27 14:16:45 -06:00 committed by Gregory Nutt
parent e66e2f5c0f
commit dce921c1cd
1 changed files with 8 additions and 0 deletions
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8
libc/netdb/lib_dnsclient.c
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@ -1029,6 +1029,14 @@ int dns_find_answer(FAR const char *hostname, FAR struct sockaddr *addr,
int next;
int ndx;
/* If DNS not initialized, no need to proceed */
if (!g_dns_initialized)
{
ndbg("ERROR: DNS not initialized yet\n");
return -EAGAIN;
}
/* Get exclusive access to the DNS cache */
dns_semtake();