File 0001-Export-consistent-hostname-as-XAUTHLOCALHO... of Package kwin5

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File 0001-Export-consistent-hostname-as-XAUTHLOCALHOSTNAME.patch of Package kwin5 (Revision d735ad9999be195aed6fe4f0236db07a)

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From 1b4234cfd61a3cfdbe5023cdef5d7cfa5a1c9704 Mon Sep 17 00:00:00 2001
From: Fabian Vogt <fabian@ritter-vogt.de>
Date: Wed, 10 Feb 2021 21:23:40 +0100
Subject: [PATCH] Export consistent hostname as XAUTHLOCALHOSTNAME

To deal with hostname changes, FamilyWild is used for Xauthority, but for Xsm
XAUTHLOCALHOSTNAME is also set (boo#1177835, downstream patch in xtrans).
The hostname is read once on startup and then used consistently.
---
 xwl/xwayland.cpp | 6 ++++--
 xwl/xwayland.h   | 1 +
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/xwl/xwayland.cpp b/xwl/xwayland.cpp
index 92e3d9199..c5d877148 100644
--- a/xwl/xwayland.cpp
+++ b/xwl/xwayland.cpp
@@ -66,6 +66,7 @@ namespace Xwl
 Xwayland::Xwayland(ApplicationWaylandAbstract *app, QObject *parent)
     : XwaylandInterface(parent)
     , m_app(app)
+    , m_hostname(QHostInfo::localHostName().toUtf8())
 {
     m_resetCrashCountTimer = new QTimer(this);
     m_resetCrashCountTimer->setSingleShot(true);
@@ -326,6 +327,7 @@ void Xwayland::handleXwaylandReady()
     qCInfo(KWIN_XWL) << "Xwayland server started on display" << displayName;
     qputenv("DISPLAY", displayName);
     qputenv("XAUTHORITY", m_authorityFile.fileName().toUtf8());
+    qputenv("XAUTHLOCALHOSTNAME", m_hostname);
 
     // create selection owner for WM_S0 - magic X display number expected by XWayland
     m_selectionOwner.reset(new KSelectionOwner("WM_S0", kwinApp()->x11Connection(), kwinApp()->x11RootWindow()));
@@ -336,6 +338,7 @@ void Xwayland::handleXwaylandReady()
     auto env = m_app->processStartupEnvironment();
     env.insert(QStringLiteral("DISPLAY"), displayName);
     env.insert(QStringLiteral("XAUTHORITY"), m_authorityFile.fileName());
+    env.insert(QStringLiteral("XAUTHLOCALHOSTNAME"), m_hostname);
     m_app->setProcessStartupEnvironment(env);
 
     emit started();
@@ -435,7 +438,6 @@ static QByteArray generateXauthorityCookie()
 
 bool Xwayland::writeXauthorityEntries()
 {
-    const QByteArray hostname = QHostInfo::localHostName().toUtf8();
     const QByteArray display = QByteArray::number(m_display);
     const QByteArray name = QByteArrayLiteral("MIT-MAGIC-COOKIE-1");
     const QByteArray cookie = generateXauthorityCookie();
@@ -444,7 +446,7 @@ bool Xwayland::writeXauthorityEntries()
     stream.setByteOrder(QDataStream::BigEndian);
 
     // Write entry with FamilyLocal and the host name as address
-    writeXauthorityEntry(stream, 256 /* FamilyLocal */, hostname, display, name, cookie);
+    writeXauthorityEntry(stream, 256 /* FamilyLocal */, m_hostname, display, name, cookie);
 
     // Write entry with FamilyWild, no address
     writeXauthorityEntry(stream, 65535 /* FamilyWild */, QByteArray{}, display, name, cookie);
diff --git a/xwl/xwayland.h b/xwl/xwayland.h
index 0bdbdbfdf..5c3cca60a 100644
--- a/xwl/xwayland.h
+++ b/xwl/xwayland.h
@@ -113,6 +113,7 @@ private:
     ApplicationWaylandAbstract *m_app;
     QScopedPointer<KSelectionOwner> m_selectionOwner;
     QTemporaryFile m_authorityFile;
+    QByteArray m_hostname;
     int m_crashCount = 0;
 
     Q_DISABLE_COPY(Xwayland)
-- 
2.25.1

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File 0001-Export-consistent-hostname-as-XAUTHLOCALHOSTNAME.patch of Package kwin5 (Revision d735ad9999be195aed6fe4f0236db07a)

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