From 206df571999b51e67323ae3008b7e429e53af679 Mon Sep 17 00:00:00 2001
From: 0oshowero0 <o0shower0o@outlook.com>
Date: Wed, 1 Jul 2026 10:38:44 +0800
Subject: [PATCH] fix ipv6 support

Signed-off-by: 0oshowero0 <o0shower0o@outlook.com>
---
 transfer_queue/utils/zmq_utils.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/transfer_queue/utils/zmq_utils.py b/transfer_queue/utils/zmq_utils.py
index 4fe32f0a..89608738 100644
--- a/transfer_queue/utils/zmq_utils.py
+++ b/transfer_queue/utils/zmq_utils.py
@@ -248,7 +248,8 @@ def get_free_port(ip: str) -> int:
                 # in that case just ignore and use the default behavior.
                 pass
 
-        sock.bind(("", 0))
+        bind_host = "::" if is_ipv6 else ""
+        sock.bind((bind_host, 0))
         return sock.getsockname()[1]