From 94fab2d210cc60da33da1d7ed862b28a5d970ebf Mon Sep 17 00:00:00 2001 From: Graham Campbell Date: Tue, 14 Jul 2026 01:37:51 +0100 Subject: [PATCH] test798: force IPv4 to avoid cross-runner port aliasing `test798` is the only test fetching `http://localhost:%HTTPPORT` without `-4`, since it needs the hostname for its folded `domain=localhost` cookie. curl tries `::1` first, but the test HTTP server is IPv4-only. On the BSDs, IPv4 and IPv6 have separate ephemeral port namespaces, so with every test server binding port 0, another parallel runner's IPv6-bound server can hold the same numeric port. curl then connects to the wrong runner's server, which cannot open its own `log/N/test798` and closes without a response, giving exit 52 and an empty `server.input`. This PR fixes this flake by adding `-4` matches what tests 389 and 392 already do. Linux is immune because wildcard IPv6 binds occupy the IPv4 port too. Seen in https://github.com/curl/curl/actions/runs/29229170329/job/86749470571. Closes #22318 --- tests/data/test798 | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tests/data/test798 b/tests/data/test798 index c69461ead7..b3937e5713 100644 --- a/tests/data/test798 +++ b/tests/data/test798 @@ -36,7 +36,7 @@ http HTTP cookies in a folded header -http://localhost:%HTTPPORT/we/want/%TESTNUMBER -b none -c %LOGDIR/jar%TESTNUMBER.txt +-4 http://localhost:%HTTPPORT/we/want/%TESTNUMBER -b none -c %LOGDIR/jar%TESTNUMBER.txt cookies