ladybird/Userland/Utilities/dmesg.cpp

21 lines
573 B
C++

/*
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibCore/File.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
ErrorOr<int> serenity_main(Main::Arguments)
{
TRY(Core::System::pledge("stdio rpath"));
TRY(Core::System::unveil("/sys/kernel/dmesg", "r"));
TRY(Core::System::unveil(nullptr, nullptr));
auto file = TRY(Core::File::open("/sys/kernel/dmesg", Core::OpenMode::ReadOnly));
auto buffer = file->read_all();
out("{}", StringView { buffer });
return 0;
}