Merge "Send both A and AAAA queries if all probes fail."
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229ab1a33e
@ -1911,6 +1911,13 @@ _dns_getaddrinfo(void *rv, void *cb_data, va_list ap)
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if (pai->ai_flags & AI_ADDRCONFIG) {
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query_ipv6 = _have_ipv6();
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query_ipv4 = _have_ipv4();
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if (query_ipv6 == 0 && query_ipv4 == 0) {
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// Both our IPv4 and IPv6 connectivity probes failed, which indicates
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// that we have neither an IPv4 or an IPv6 default route (and thus no
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// global IPv4 or IPv6 connectivity). We might be in a walled garden.
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// Throw up our arms and ask for both A and AAAA.
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query_ipv6 = query_ipv4 = 1;
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}
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}
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if (query_ipv6) {
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q.qtype = T_AAAA;
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