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https-rr: implementation improvements

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- fold DoH and async HTTPS-RR handling into common code.
  have common cleanups, etc. Have a CURLcode result in async
  handling to allow HTTPS RR parsing to fail.
- keep target, ipv4hints, ipv6hints, port and echconfig also
  when resolving via cares. We need to know `target` and `port`
  when evaluating possible ALPN candidates to not go astray.
- add CURL_TRC_DNS for tracing DNS operations
- replace DoH specific tracing with DNS, use doh as alias
  for dns in curl_global_tracea()

Closes #16132
This commit is contained in:
Stefan Eissing 2025-01-30 15:31:16 +01:00 • committed by Daniel Stenberg
parent db72b8d4d0
commit 1b710381ca
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12 changed files with 174 additions and 103 deletions
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10
lib/asyn-thread.c
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@ -585,17 +585,19 @@ CURLcode Curl_resolver_is_resolved(struct Curl_easy *data,
Curl_mutex_release(&td->tsd.mutx);
if(done) {
CURLcode result = td->result;
getaddrinfo_complete(data);
if(!data->state.async.dns) {
CURLcode result = Curl_resolver_error(data);
if(!result && !data->state.async.dns)
result = Curl_resolver_error(data);
if(result) {
destroy_async_data(data);
return result;
}
#ifdef USE_HTTPSRR_ARES
{
struct Curl_https_rrinfo *lhrr =
Curl_memdup(&td->hinfo, sizeof(struct Curl_https_rrinfo));
struct Curl_https_rrinfo *lhrr = Curl_httpsrr_dup_move(&td->hinfo);
if(!lhrr) {
destroy_async_data(data);
return CURLE_OUT_OF_MEMORY;