Qt UI: Runner: Use specialised QProcess subclass

This allows us to set the uid/gid in the executor process so that APK
inherits full root, which prevents a weird error that causes APK Tools
to write out all files as owned by the live user's GID when run under
live media.

1 files changed, 20 insertions, 0 deletions

diff --git a/ui/qt5/runner/executorprocess.cc b/ui/qt5/runner/executorprocess.cc
new file mode 100644
index 0000000..1712fd9
--- /dev/null
+++ b/ui/qt5/runner/executorprocess.cc
@@ -0,0 +1,20 @@
+/*
+ * executorprocess.cc - Implementation of the QProcess class for the executor
+ * horizon-run-qt5, the Qt 5 executor user interface for
+ * Project Horizon
+ *
+ * Copyright (c) 2023 Adélie Linux and contributors.  All rights reserved.
+ * This code is licensed under the AGPL 3.0 license, as noted in the
+ * LICENSE-code file in the root directory of this repository.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+#include "executorprocess.hh"
+
+#include <unistd.h>
+
+void ExecutorProcess::setupChildProcess() {
+    ::setuid(::geteuid());
+    ::setgid(::getegid());
+}