mirror of
https://github.com/RGBCube/serenity
synced 2025-07-27 02:27:43 +00:00
Userland: Move command-line utilities to Userland/Utilities/
This commit is contained in:
parent
c4e2fd8123
commit
ececac65c2
142 changed files with 58 additions and 58 deletions
130
Userland/Utilities/w.cpp
Normal file
130
Userland/Utilities/w.cpp
Normal file
|
@ -0,0 +1,130 @@
|
|||
/*
|
||||
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
||||
* this list of conditions and the following disclaimer in the documentation
|
||||
* and/or other materials provided with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||||
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#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 <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::IODevice::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.appendf("%llds", idle_time);
|
||||
idle_string = builder.to_string();
|
||||
}
|
||||
}
|
||||
|
||||
String what = "n/a";
|
||||
|
||||
for (auto& it : process_statistics.value()) {
|
||||
if (it.value.tty == tty && it.value.pid == it.value.pgid)
|
||||
what = it.value.name;
|
||||
}
|
||||
|
||||
printf("%-10s %-12s %-16s %-6s %s\n",
|
||||
username.characters(),
|
||||
tty.characters(),
|
||||
login_at.characters(),
|
||||
idle_string.characters(),
|
||||
what.characters());
|
||||
});
|
||||
return 0;
|
||||
}
|
Loading…
Add table
Add a link
Reference in a new issue