ladybird/Userland/Utilities/dmesg.cpp
2021-08-01 08:10:16 +02:00

34 lines
765 B
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibCore/File.h>
#include <stdio.h>
#include <unistd.h>
int main([[maybe_unused]] int argc, [[maybe_unused]] char** argv)
{
if (pledge("stdio rpath", nullptr) < 0) {
perror("pledge");
return 1;
}
if (unveil("/proc/dmesg", "r") < 0) {
perror("unveil");
return 1;
}
unveil(nullptr, nullptr);
auto file = Core::File::construct("/proc/dmesg");
if (!file->open(Core::OpenMode::ReadOnly)) {
warnln("Failed to open {}: {}", file->name(), file->error_string());
return 1;
}
auto buffer = file->read_all();
out("{}", String::copy(buffer));
return 0;
}