ladybird/Userland/Utilities/dmesg.cpp
Tim Schumacher ed4c2f2f8e LibCore: Rename Stream::read_all to read_until_eof
This generally seems like a better name, especially if we somehow also
need a better name for "read the entire buffer, but not the entire file"
somewhere down the line.
2022-12-12 14:16:42 +01:00

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C++

/*
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibCore/Stream.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::Stream::File::open("/sys/kernel/dmesg"sv, Core::Stream::OpenMode::Read));
auto buffer = TRY(file->read_until_eof());
out("{}", StringView { buffer });
return 0;
}