import os

import subprocess

import sys

import time

from time import sleep

FIFO = "./namedpipe"

STDOUT = "./logfile.log"

STDERR = "./logfile.err"

pid = os.fork()

if pid != 0:

sys.exit(0)

os.setsid()

os.umask(0)

sys.stderr.flush()

sys.stdout.flush()

try:

os.mkfifo(FIFO)

except OSError:

pass

with open(FIFO) as fifo, open(STDOUT, "w+") as stdout, open(STDERR, "w+") as stderr:

while True:

input_data = fifo.read().strip("\n")

if not input_data:

sleep(3)

sys.stderr = stderr

sys.stdout = stdout

if input_data.isdigit():

command = f"cat /proc/{input_data}/limits | grep 'Max open files'"

output = str(subprocess.check_output(['/bin/bash', '-c', command]))

print(f"{time.time()} {output}")

elif input_data == "PACKAGES":

output = str(

subprocess.check_output(['/bin/bash', '-c', """apt list --installed | tail -n 5 | tr "\n" " " """]))

print(f"{time.time()} {output}")

elif input_data.startswith("/dev/pts/"):

print(f"{time.time()} Message sent!")

subprocess.run(["/bin/bash", "-c", f"echo 'Hello Sender\n' > {input_data}"])

elif input_data == "CLOSE":

print(f"{time.time()} Shutting down")

os.unlink("./namedpipe")

sys.exit(1)

sleep(3)