From: Daniel Stenberg <daniel@haxx.se>
Date: Thu, 9 Oct 2025 15:23:56 +0000 (+0200)
Subject: asyn-ares: use the duped hostname pointer for all calls
X-Git-Tag: rc-8_17_0-3~233
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=71585f9894cf97ed6719487cb03aa97d2f94b7cd;p=thirdparty%2Fcurl.git

asyn-ares: use the duped hostname pointer for all calls

In one c-ares call the passed in pointer was used and not the new
duplicated one. This is probably fine but might as well use the new
pointer as all the other calls do, which will survive longer.

Reported-by: Joshua Rogers
Closes #18980
---

diff --git a/lib/asyn-ares.c b/lib/asyn-ares.c
index 236697695e..dcbed0129c 100644
--- a/lib/asyn-ares.c
+++ b/lib/asyn-ares.c
@@ -793,7 +793,7 @@ struct Curl_addrinfo *Curl_async_getaddrinfo(struct Curl_easy *data,
     /* The stack seems to be IPv6-enabled */
     /* areschannel is already setup in the Curl_open() function */
     CURL_TRC_DNS(data, "asyn-ares: fire off query for A");
-    ares_gethostbyname(ares->channel, hostname, PF_INET,
+    ares_gethostbyname(ares->channel, data->state.async.hostname, PF_INET,
                        async_ares_hostbyname_cb, data);
     CURL_TRC_DNS(data, "asyn-ares: fire off query for AAAA");
     ares->num_pending = 2;