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Allow truncated answers to be returned

This commit is contained in:
Willem Toorop 2015-12-22 10:56:20 +01:00
parent ee2a1fbfe6
commit 0a809cb7d8
1 changed files with 7 additions and 6 deletions
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13
src/stub.c
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@ -1276,17 +1276,19 @@ stub_udp_read_cb(void *userarg)
return; /* Client cookie didn't match? */ return; /* Client cookie didn't match? */
close(netreq->fd); close(netreq->fd);
if (GLDNS_TC_WIRE(netreq->response)) { while (GLDNS_TC_WIRE(netreq->response)) {
DEBUG_STUB("TC bit set\n");
if (!(netreq->transport_current < netreq->transport_count)) if (!(netreq->transport_current < netreq->transport_count))
goto done; break;
getdns_transport_list_t next_transport = getdns_transport_list_t next_transport =
netreq->transports[++netreq->transport_current]; netreq->transports[++netreq->transport_current];
if (next_transport != GETDNS_TRANSPORT_TCP) if (next_transport != GETDNS_TRANSPORT_TCP &&
goto done; next_transport != GETDNS_TRANSPORT_TLS)
break;
/* For now, special case where fallback should be on the same upstream*/ /* For now, special case where fallback should be on the same upstream*/
if ((netreq->fd = upstream_connect(upstream, next_transport, if ((netreq->fd = upstream_connect(upstream, next_transport,
dnsreq)) == -1) dnsreq)) == -1)
goto done; break;
upstream_schedule_netreq(netreq->upstream, netreq); upstream_schedule_netreq(netreq->upstream, netreq);
GETDNS_SCHEDULE_EVENT( GETDNS_SCHEDULE_EVENT(
dnsreq->loop, netreq->upstream->fd, dnsreq->context->timeout, dnsreq->loop, netreq->upstream->fd, dnsreq->context->timeout,
@ -1298,7 +1300,6 @@ stub_udp_read_cb(void *userarg)
} }
netreq->response_len = read; netreq->response_len = read;
dnsreq->upstreams->current = 0; dnsreq->upstreams->current = 0;
done:
netreq->debug_end_time = _getdns_get_time_as_uintt64(); netreq->debug_end_time = _getdns_get_time_as_uintt64();
netreq->state = NET_REQ_FINISHED; netreq->state = NET_REQ_FINISHED;
_getdns_check_dns_req_complete(dnsreq); _getdns_check_dns_req_complete(dnsreq);