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Initialise DNS TTL for A and AAAA records.
So far, the TTLs for both A and AAAA records were not initialised, resulting in exit relays sending back the value 60 to Tor clients. This also impacts exit relays' DNS cache -- the expiry time for all domains is set to 60. This fixes <https://bugs.torproject.org/19025>.
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@ -326,7 +326,7 @@ cached_resolve_add_answer(cached_resolve_t *resolve,
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resolve->result_ipv4.err_ipv4 = dns_result;
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resolve->res_status_ipv4 = RES_STATUS_DONE_ERR;
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}
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resolve->ttl_ipv4 = ttl;
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} else if (query_type == DNS_IPv6_AAAA) {
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if (resolve->res_status_ipv6 != RES_STATUS_INFLIGHT)
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return;
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@ -341,6 +341,7 @@ cached_resolve_add_answer(cached_resolve_t *resolve,
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resolve->result_ipv6.err_ipv6 = dns_result;
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resolve->res_status_ipv6 = RES_STATUS_DONE_ERR;
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}
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resolve->ttl_ipv6 = ttl;
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}
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}
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