Questions tagged [socket]
An endpoint of a bidirectional inter-process communication flow. This often refers to a process flow over a network connection, but by no means is limited to such.
307
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16 views
Unable to get required output in Backdoor and Listener with Remote Code Execution functionality [closed]
I am trying to code a Backdoor and for it, a Listener that can be used to remotely execute commands on a Compromised Machine. But I am unable to get the code right in Python 3.
There are 2 codes in ...
3
votes
1answer
61 views
TCP chat room in Python3
(Previous question)
I've created a server file, that keeps waiting for clients. When someone connects to the server, he can send messages to the server, and from the server it is broadcasted to all ...
4
votes
1answer
220 views
TCP chat room in Python 3
I've created a server file, that keeps waiting for clients. When someone connects to the server, he can send messages to the server, and from the server it is broadcasted to all clients.
Can you ...
3
votes
1answer
104 views
Pomodoro timer daemon in C for BSD systems
I wrote a Pomodoro timer daemon for BSD systems in C (may work on Linux with -lbsd).
The server uses poll(2) and sockets to communicate with the client and to ...
2
votes
2answers
87 views
Write deduplicated 9-digit numbers from concurrent clients to a log
Problem Statement:
Write a server (“Application”) in Java that opens a socket and restricts input to at most 5 concurrent clients. Clients will connect to the Application and write any number of 9 ...
1
vote
1answer
30 views
Utilizing idle socket server to do meaningful thing (timeout after sleep on epoll_wait)
I write an app server that uses TCP socket on Linux. When there is no traffic (no data is sent by client, no client connect() or ...
1
vote
1answer
87 views
Java UDP port knocking authentication. Many clients at the same time
This is a student project of mine. I got 4/5 points but I suspect there's a lot of weird stuff in there. I never had a chance to hear my teacher's feedback about it and it bothers me so I figured ...
4
votes
2answers
118 views
C++ TcpServer class
I have a class Tcp_Server that implements a TCP server. This is the base class for the other types of servers available in my program. For example ...
3
votes
1answer
109 views
Secure socket programming with OpenSSL and C
Background
Lately, I found OpenSSL to be difficult to learn as a beginner, while it can be implemented inside beginner-friendly projects like socket programming. ...
0
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0answers
12 views
What are the downsides of stateful socket NodeJS server comparing to a regular stateless REST server?
I've built this NodeJS server architecture 5 years ago. The project was in production all this time, I've been maintaining it actively, adding a lot of new features, and had no troubles with this ...
1
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1answer
162 views
How can I speed up the processing of the received channel socket
This currently runs with 1400+ sockets and manages data correctly and in the manner the application requires. I do have an issue with the HandleData method where ...
1
vote
1answer
55 views
Implementing classes in Javascript
I'm building a simple chatApp. The UI has just 3 interaction areas: input, submit and previous messages button.
But I'm not interested in reviewing the app architecture as much as the javascript ideas ...
5
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0answers
72 views
Simple chat server in Python
I'm new to both Python and socket programming and figured setting up a simple chat server would be good practice. In addition to general critiques of the code, I have specific questions:
What are the ...
1
vote
1answer
77 views
Feedback on send/recv functions for non blocking sockets in client side HTTP library
I'm working with TCP sockets in C, specifically only for client side HTTP(S) requests, and would like to get some feedback on my send and recv code.
You can make some assumptions regarding my code, as ...
2
votes
1answer
396 views
Async tcp socket client: send multiple requests with one connection
I'm new to socket programming and c++. I have a the following method that sends an array to server and receives sum of the array, I tried to make it async.
...
4
votes
2answers
1k views
C++ sockets: Sending structs for P2P communication
Two parties communicate over a network sending back and forth up to 100 messages. Each message sent is a response to the last received message and depends on it.
This means that both parties have to ...
8
votes
1answer
107 views
A Server and Client Chatroom Using Sockets and Threading
I made a chatroom with a server and client python files, using Sockets and Threading as a project. I'm interested to acquire ...
5
votes
1answer
47 views
A Program that gets text from a client and puts it into a file on a server
I recently created a program that could get information from a client, a name and some text, and then put that into a text file. From there the user can get open the text file straight from the ...
9
votes
3answers
315 views
Parse string into a struct
I'm writing a C application for the Networking course at the University.
Basically it's a UDP server that can receive two commands:
GET key
SET key value
That are ...
5
votes
1answer
317 views
Server in Python
I'm looking for a code review and code improvement for my own small server.
The server accepts the requests:
User Join,User Leave,User Text Notify Group Join, Group Leave, Group Notify Request Time.
...
3
votes
1answer
67 views
Finding the class to which the IP address belongs
I have tried the code for finding the class of the IP address the user inputs, and printing the network and the host bits in the IP address. Could someone please review this approach and provide ...
4
votes
0answers
101 views
Chat using async Python and sockets
I am trying out websockets using the python async framework aiohttp.
Basically I have created a game which will include multiple ...
4
votes
1answer
437 views
HTTPS proxy server in Rust using the CONNECT protocol
I'm a Rust newbie. As a pet project, I decided to implement a simple multi-threaded HTTPS proxy server in Rust which uses the CONNECT protocol. I have tested the code below using my browser.
...
3
votes
1answer
77 views
Encrypted Online Rock Paper Scissors Game
I made an RPS Game with python with the Crypto and socket modules.
I would like you to look at the code and tell me if anything ...
2
votes
1answer
29 views
Python Socket programming chat - getting a handle on PEP conventions
A while back I wrote a socket programmed chat in Python. This question isn't really about the program specifically, moreso on conventions of Python and my style of coding. I've only been using Python ...
0
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1answer
103 views
A common class for Client and Server [closed]
I have written this code to use TcpClient both from a client program and a server program.
Can you review this source code?
Kindly, take a close look at ...
0
votes
1answer
232 views
Basic asio framework using epoll
I created an asio framework using epoll.
Full project: https://github.com/arkceajin/EpollSocket.git
I wanna know is there any potential issue.
Below is the core ...
3
votes
2answers
1k views
Adding a cancellation token to TcpListener.AcceptTcpClientAsync()
There is no facility in TcpListener (or for that matter Socket) to close a listening socket that is waiting for a connection without throwing an exception. After running up a test bench with 8 ...
12
votes
3answers
2k views
Correctly applying the “rule of five” to a RAII socket wrapper
I was trying to create a simple RAII wrapper with rule of 5 for a TCP POSIX socket. My aim was to try learn how to apply rule of five in different situations, but this one was somehow tricky.
...
2
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0answers
38 views
Log tailing socket server
Each client application would send a filepath and search term to the server. The server then takes that file path reads the file and returns any lines that contain the search term, the server then ...
3
votes
0answers
39 views
Application uniqueness and unilateral IPC on Unix
This program
Detects application uniqueness, if the application is a unique/primary instance, it launches a server, otherwise a client over a Unix domain socket.
Client will send a message that will ...
3
votes
0answers
51 views
one-thread blocking approach for socket tcp multi-client server
my use-case (an home task to practice abstraction, exception handling, unitests) is regarding a message-queue with small-fixed-size client requests from stdin of such:
[ENQ] data (insert json ...
6
votes
0answers
134 views
Single-threaded fully asynchronous server, with a SocketSelector that dispatches events
I need a fully asynchronous single-threaded server written using .Net Core. Searched for options and, surprisingly, did't find any. So I decided to write a simple prototype. Borrowed idea from python'...
3
votes
1answer
151 views
Java Networking Framework
So I've just written a framework that is supposed to make it easier to create a network-based application (client-server) using the native java.net package. I was wondering if the structure of my code ...
2
votes
2answers
703 views
Server and Client programs for guessing game
I recently had to complete this for a school assignment and I really enjoyed it, but was hoping someone with experience in OO design or maybe just Java in general could have a look and point out ...
5
votes
1answer
1k views
Streaming Messages to multiple Clients
I wrote a server-client application in Python where the server sends a never-ending stream of messages to connecting clients.
I was in need for such an architecture since I want to retrieve and ...
3
votes
1answer
121 views
Capsulation solution for byte arrays
In a part of the project, I had to implement a solution for encapsulation of byte arrays. We do use ssh and secure ports for socket connection but I was in need of an extra layer of protection against ...
2
votes
1answer
67 views
Java file transfer through sockets
I am making a program that transfers files from one client to another. Right now I am just working on sending the file to the server and then later I will work on transferring it to the other client.
...
4
votes
4answers
1k views
Unix chat server making communication between terminals possible
This Server handles clients communicating with each other. Because I was not willing to actually give every client a name, they are named by their socket's file descriptor. This is my first ...
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0answers
778 views
Some questions about a simple asynchronous socket client [closed]
I am having a hard time to come up with a simple TCP client, that should use one socket and two threads (one for sending and one for receiving).
As using TPL tasks is the way asynchrony should be ...
4
votes
1answer
58 views
Send / receive wrapper for System.Net.Sockets - follow-up
I recently posted a question about improving thread and socket safety in my NetworkEndpoint class. previous post
I have implemented the changes suggested in the answer I got there. When I asked for a ...
6
votes
1answer
176 views
Send / receive wrapper for System.Net.Sockets
The following NetworkEndpoint class serves as a simple send / receive interface for either side of a network connection (client or server) when provided with a ...
3
votes
1answer
75 views
Small socket based packet Library
I'm currently writing a python script which needs some simple networking. After some playing around with sockets, this emerged, but as this is my first foray into sockets I'd really like a second ...
6
votes
2answers
2k views
C++ network stream
So, I'm new to socket programming. I wanted to get started learning, and start making stuff, but was really surprised to find out there was no standard C++ network library yet. I'd have to look for a ...
2
votes
0answers
40 views
Rust HTTP Requester
I am writing an HTTP client for terminal, similar to curl, as a learning exercise.
There's one limitation it suffers from and that is that it won't return until the client closes the socket. I fixed ...
2
votes
0answers
62 views
Simple Socket Server in C for Windows
I have taken the code from a tutorial of Microsoft webpage.
Of course, the example is for illustration only but I wanted to organize it and make it clear in order to understand it a little more.
Here ...
14
votes
3answers
2k views
Simple HTTP Server
I'm working on a project (studying) and I have a lot of time for proof of concepts and write something from scratch.
Basically I'm creating an HTTP server (simple, but not too simple) in C++ using ...
3
votes
2answers
3k views
C++ protocol for sending arrays over TCP
As someone who has programmed in C for a long time, I have just written my first C++ program and feel it would be very valuable to get a review of the code, to see what features of C++ I could make ...
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0answers
38 views
Java local service with sockets
My goal was to create a Java service on Windows that runs locally and communicates with local programs using JSON. The service should be reliable and robust.
The service runs a ServerSocket and ...
8
votes
1answer
1k views
Python scanner for the first free port in a range
I have a distributed application (YARN), which runs a WebApp.
This application use a default port to start (8008), before I start I need to check if port is in use.
A container may run in the same ...
