mirror of
git://code.qt.io/qt/qt5.git
synced 2026-04-19 11:36:12 +08:00
5c6814fb18
glibc has a system where, if it fails to perform Happy Eyeballs host name resolution in parallel, it will do it sequentially. We triggered this because our docker setup was not responding to systemd-resolved's AAAA queries over IPv6. The bug in glibc was then that it would poll for 4999ms after sending the first of the two queries. __Every time__ we do mdns host lookup. In tst_QTcpSocket this happens multiple times in ::initTestCase for the proxy global-datatags. That means we would be stuck polling for 4999ms*5 (number of proxy addresses to look up) before every test-case that would use proxy (even if the test just does a return in the proxy-case). Plus another 4999ms for any mdns lookup we would need to perform during the test. This led to the test severely slowing down and timing out quite often. Work around this by doing full mDNS before trying DNS. This will let us resolve multi-label mDNS addresses. Pick-to: 6.5 Fixes: QTBUG-107696 Change-Id: I26c6b356b4c9712f4ac6d3613998ee448c0ca504 Reviewed-by: Dimitrios Apostolou <jimis@qt.io>
52 lines
2.4 KiB
Bash
Executable File
52 lines
2.4 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
#############################################################################
|
|
##
|
|
## Copyright (C) 2021 The Qt Company Ltd.
|
|
## Contact: https://www.qt.io/licensing/
|
|
##
|
|
## This file is part of the provisioning scripts of the Qt Toolkit.
|
|
##
|
|
## $QT_BEGIN_LICENSE:LGPL$
|
|
## Commercial License Usage
|
|
## Licensees holding valid commercial Qt licenses may use this file in
|
|
## accordance with the commercial license agreement provided with the
|
|
## Software or, alternatively, in accordance with the terms contained in
|
|
## a written agreement between you and The Qt Company. For licensing terms
|
|
## and conditions see https://www.qt.io/terms-conditions. For further
|
|
## information use the contact form at https://www.qt.io/contact-us.
|
|
##
|
|
## GNU Lesser General Public License Usage
|
|
## Alternatively, this file may be used under the terms of the GNU Lesser
|
|
## General Public License version 3 as published by the Free Software
|
|
## Foundation and appearing in the file LICENSE.LGPL3 included in the
|
|
## packaging of this file. Please review the following information to
|
|
## ensure the GNU Lesser General Public License version 3 requirements
|
|
## will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
|
|
##
|
|
## GNU General Public License Usage
|
|
## Alternatively, this file may be used under the terms of the GNU
|
|
## General Public License version 2.0 or (at your option) the GNU General
|
|
## Public license version 3 or any later version approved by the KDE Free
|
|
## Qt Foundation. The licenses are as published by the Free Software
|
|
## Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
|
|
## included in the packaging of this file. Please review the following
|
|
## information to ensure the GNU General Public License requirements will
|
|
## be met: https://www.gnu.org/licenses/gpl-2.0.html and
|
|
## https://www.gnu.org/licenses/gpl-3.0.html.
|
|
##
|
|
## $QT_END_LICENSE$
|
|
##
|
|
#############################################################################
|
|
|
|
# The new version of libnss-mdns resolver library automatically rejects all
|
|
# hostnames with more than two labels (i.e. subdomains deep), for example
|
|
# vsftpd.test-net.qt.local is automatically rejected. The changes here fix
|
|
# this, see also https://github.com/lathiat/nss-mdns#etcmdnsallow
|
|
|
|
cat <<EOT | sudo tee /etc/mdns.allow
|
|
.local.
|
|
.local
|
|
EOT
|
|
|
|
sudo sed -i '/^hosts:/s/.*/hosts: files mdns_minimal [NOTFOUND=return] mdns4 dns/' /etc/nsswitch.conf
|