From f105c6ac812bf6be9f7b8877906fad5d22c9ca85 Mon Sep 17 00:00:00 2001
From: Charles Kerr <charles@charleskerr.com>
Date: Tue, 8 Feb 2022 21:30:45 -0600
Subject: [PATCH] fix: make DNS queries lowercase (#2591)

Fixes #461.
---
 libtransmission/announcer-udp.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libtransmission/announcer-udp.cc b/libtransmission/announcer-udp.cc
index 8320137d4..858f8952d 100644
--- a/libtransmission/announcer-udp.cc
+++ b/libtransmission/announcer-udp.cc
@@ -629,7 +629,7 @@ static void tau_tracker_upkeep_ex(struct tau_tracker* tracker, bool timeout_reqs
         dbgmsg(tracker->host, "Trying a new DNS lookup");
         tracker->dns_request = evdns_getaddrinfo(
             tracker->session->evdns_base,
-            tracker->host.c_str(),
+            tr_strlower(tracker->host.sv()).c_str(),
             nullptr,
             &hints,
             tau_tracker_on_dns,