mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-25 09:00:22 +00:00
111 lines
3 KiB
C++
111 lines
3 KiB
C++
/*
|
|
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <AK/ByteBuffer.h>
|
|
#include <AK/JsonObject.h>
|
|
#include <AK/JsonValue.h>
|
|
#include <LibCore/DateTime.h>
|
|
#include <LibCore/File.h>
|
|
#include <LibCore/ProcessStatisticsReader.h>
|
|
#include <inttypes.h>
|
|
#include <pwd.h>
|
|
#include <stdio.h>
|
|
#include <sys/stat.h>
|
|
#include <time.h>
|
|
|
|
int main()
|
|
{
|
|
if (pledge("stdio rpath", nullptr) < 0) {
|
|
perror("pledge");
|
|
return 1;
|
|
}
|
|
|
|
if (unveil("/dev", "r") < 0) {
|
|
perror("unveil");
|
|
return 1;
|
|
}
|
|
|
|
if (unveil("/etc/passwd", "r") < 0) {
|
|
perror("unveil");
|
|
return 1;
|
|
}
|
|
|
|
if (unveil("/var/run/utmp", "r") < 0) {
|
|
perror("unveil");
|
|
return 1;
|
|
}
|
|
|
|
if (unveil("/proc", "r") < 0) {
|
|
perror("unveil");
|
|
return 1;
|
|
}
|
|
|
|
unveil(nullptr, nullptr);
|
|
|
|
auto file_or_error = Core::File::open("/var/run/utmp", Core::OpenMode::ReadOnly);
|
|
if (file_or_error.is_error()) {
|
|
warnln("Error: {}", file_or_error.error());
|
|
return 1;
|
|
}
|
|
auto& file = *file_or_error.value();
|
|
auto json = JsonValue::from_string(file.read_all());
|
|
if (!json.has_value() || !json.value().is_object()) {
|
|
warnln("Error: Could not parse /var/run/utmp");
|
|
return 1;
|
|
}
|
|
|
|
auto process_statistics = Core::ProcessStatisticsReader::get_all();
|
|
if (!process_statistics.has_value()) {
|
|
warnln("Error: Could not get process statistics");
|
|
return 1;
|
|
}
|
|
|
|
auto now = time(nullptr);
|
|
|
|
printf("\033[1m%-10s %-12s %-16s %-6s %s\033[0m\n",
|
|
"USER", "TTY", "LOGIN@", "IDLE", "WHAT");
|
|
json.value().as_object().for_each_member([&](auto& tty, auto& value) {
|
|
const JsonObject& entry = value.as_object();
|
|
auto uid = entry.get("uid").to_u32();
|
|
[[maybe_unused]] auto pid = entry.get("pid").to_i32();
|
|
|
|
auto login_time = Core::DateTime::from_timestamp(entry.get("login_at").to_number<time_t>());
|
|
auto login_at = login_time.to_string("%b%d %H:%M:%S");
|
|
|
|
auto* pw = getpwuid(uid);
|
|
String username;
|
|
if (pw)
|
|
username = pw->pw_name;
|
|
else
|
|
username = String::number(uid);
|
|
|
|
StringBuilder builder;
|
|
String idle_string = "n/a";
|
|
struct stat st;
|
|
if (stat(tty.characters(), &st) == 0) {
|
|
auto idle_time = now - st.st_mtime;
|
|
if (idle_time >= 0) {
|
|
builder.appendff("{}s", idle_time);
|
|
idle_string = builder.to_string();
|
|
}
|
|
}
|
|
|
|
String what = "n/a";
|
|
|
|
for (auto& process : process_statistics.value()) {
|
|
if (process.tty == tty && process.pid == process.pgid)
|
|
what = process.name;
|
|
}
|
|
|
|
printf("%-10s %-12s %-16s %-6s %s\n",
|
|
username.characters(),
|
|
tty.characters(),
|
|
login_at.characters(),
|
|
idle_string.characters(),
|
|
what.characters());
|
|
});
|
|
return 0;
|
|
}
|