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/*
* Copyright (c) 2021, Peter Elliott <pelliott@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibCore/ProcessStatisticsReader.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
#include <signal.h>
static Core::ProcessStatistics const& get_proc(Core::AllProcessesStatistics const& stats, pid_t pid)
{
for (auto& proc : stats.processes) {
if (proc.pid == pid)
return proc;
}
VERIFY_NOT_REACHED();
}
ErrorOr<int> serenity_main(Main::Arguments)
{
TRY(Core::System::pledge("stdio proc rpath"));
TRY(Core::System::unveil("/proc/all", "r"));
TRY(Core::System::unveil("/etc/passwd", "r"));
TRY(Core::System::unveil(nullptr, nullptr));
// logout finds the highest session up all nested sessions, and kills it.
auto stats = Core::ProcessStatisticsReader::get_all();
if (!stats.has_value()) {
warnln("couldn't get process statistics");
return 1;
}
pid_t sid = getsid(0);
while (true) {
pid_t parent = get_proc(stats.value(), sid).ppid;
pid_t parent_sid = get_proc(stats.value(), parent).sid;
if (parent_sid == 0)
break;
sid = parent_sid;
}
TRY(Core::System::kill(-sid, SIGTERM));
return 0;
}
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