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.
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questions
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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
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3answers
1k 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.
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36 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 ...
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0answers
34 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 ...
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0answers
44 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
105 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
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1answer
58 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
169 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
79 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
115 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
59 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.
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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
124 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
50 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
106 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
63 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 ...
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votes
0answers
253 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 ...
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votes
0answers
36 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
43 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
664 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
34 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 ...
7
votes
1answer
356 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 ...
2
votes
0answers
124 views
Simple Go Linux daemon to send/receive gob-encoded data on a socket
I'm currently working on a linux daemon and would like some feedback. The program is a simple unix socket server that sends around gob encoded messages. I'm still getting the hang of concurrency in go ...
2
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0answers
528 views
Socket chat room made with Tkinter Python
This is a real live chatroom that I have made with Tkinter
I posted a question before about making a chatroom but the problem that I had with that one was that only one user could connect to the ...
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vote
0answers
43 views
Socket sending/receiving data
I am a beginner in Android and this is my first big project in it. I am trying to communicate with an STM Discovery board using an ESP01 module.
Below is the client connection class
...
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vote
2answers
51 views
Creating a dict with external and internal IP addresses provided a list of candidates
I created a function that finds internal and external IP addresses, returns them in dict with the keys external_ips and local_ips...
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votes
0answers
61 views
Web server using syscalls in Go
I'm new to Go and wanted to implement a web server using system calls to get a better feel for how everything works.
I'm looking for feedback on idiomatic go especially error handling and using ...
6
votes
2answers
1k views
Socket chat room in Python
This is a Python chat room that I've been working on and it enables to you to chat to other people on the same network through Python.
Server.py:
...
3
votes
0answers
421 views
TCP client reading socket asynchronously
I'm relatively new to .Net/UWP networking and have been trying to make sense of the APIs. I'd like to implement a TCP client that is capable of reading and sending messages independently (there is no ...
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vote
0answers
33 views
Back-end web framework with sockets
I recently became interested in back end web frameworks in python, but I didn't want to use django or flask. (I want to make something similar to django or flask) So I decided to make my own. This is ...
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votes
1answer
62 views
Android TCP server that maps data to an object and sends it to a service
This is a code for an android thread. This is a tcp server and gets data from socket, maps it to an object and sends that object back to the main service. If there is anything I'm doing wrong or if ...
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0answers
33 views
Managing multiple sockets in a network client in Python
I'm writing a small FIX client in Python (2.7, constraint I cannot waive for now, unfortunately).
There will be multiple sockets, connecting to different ports, so I thought I'd create a ...
1
vote
1answer
923 views
Python Making Bruteforce Password Crack Faster
I made a simple password cracker using Python. But it's extremely slow. Here is my code:
...
2
votes
1answer
72 views
Await socket Response
I wrote this to make the "callback hell" more manageable on the part of the coder when using Socket IO, so that there wasn't really any callback hell to go with, just a simple await.
This should work ...
3
votes
2answers
750 views
Simple multithreaded chat server in Rust
I'm trying to develop a simple Rust chat server. I'm not a Rust expert and come from Java and Kotlin.
This same server in Kotlin is:
...
5
votes
1answer
71 views
Socket client-server app for exchanging sine-wave points
I wanted to try C# network programming and wrote this simple client/server application. The idea is - many clients can connect to server and request some data. As an example they request a set of ...
4
votes
1answer
8k views
A Simple C++ Client That Sends Data Over TLS Using OpenSSL
I am learning C++ and socket programming and OpenSSL. As such, I decided to make a simple client that opens a TLS connection and writes some data as practice. It also serves as a base for more complex ...
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vote
1answer
1k views
Multithreaded non-blocking tiny echo server
I wrote this code to make a non-blocking server without using select(), my main concern is to catch as many exceptions as possible for worst case scenarios (so I ...
2
votes
0answers
152 views
Gomoku game with socket client(multithread) and server
I've write a gomoku terminal game with socket client and server.
The main suggestions I am looking for:
Am I using the multithread in right way? As when I tried to migrate the terminal game to GUI(...
0
votes
1answer
71 views
Game Server application
I'm trying to write game server core that I can easy extend to use for various games. From simple online Blackjack session, to MMORPG. Long story short, I came up with this solution:
Firstly, we have ...
2
votes
4answers
2k views
Simple port scanner in Python 3
I wrote a simple python port scanner today and I would like to get some advice on how to improve on the code in different ways.
I am aware that I can implement threading to reduce runtime but I won't ...
6
votes
2answers
659 views
UDP Reverse Shell
I'm currently learning python / network programming altogether and I coded this simple python reverse shell; I would like to hear any remarks from you regarding code structure, any common beginner ...
3
votes
1answer
113 views
Java Messenger data transmission
This is a very simple concern, could somebody take a look at a few lines of my code? I'm writing a simple Java multi-user messenger, it is structured in a desktop client with a Swing GUI, a java ...
0
votes
1answer
209 views
Scanning the subnet by ip range
By applying the get_name and get_mac functions to the specified IP address, it is possible to estimate the network availability ...
6
votes
1answer
75 views
Response dispatcher for HTTP server
I’m writing a small HTTP server (just for fun and education). One important part is the response dispatcher. Responses for each socket should be sent in the order the requests were received. The idea ...
7
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2answers
667 views
Network Interface Object
I wrote a Network... thing (not really telnet); and it's pretty simple. No options, just straight I/O. It seems programs get so bloated easily.
...
3
votes
1answer
333 views
Socket server in c#
I'm writing a socket server for a project I am working on. I'm used to working in .NET FW, but I'm attempting to write this using .NET standard/core. Particularly, I am concerned about managing ...
2
votes
1answer
142 views
Actively writing an HTTPS webserver in Python 3
Please help me improving this existing, working code. I am not asking you to change what it does, as it handles connections already perfectly as designed by my own specs. I just want the code to be ...
3
votes
0answers
1k views
Large file transmission over socket in Python
To learn network programming in Python, I have written a small piece of code which is constituted of 2 modules, a client and a server. The server listens to a specific port provided on command line, ...
