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Questions tagged [networking]

Networking is associated with creating and managing networks as well as adding network connectivity to a (set of) programs.

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Decoupling networking management with the processing of generating messages to be sent which may need some calculation

The code snippet below is used to read/write tcp message. And the messages are sent(i.e. the void Conversation::do_write(std::string content)) by other threads ...
John's user avatar
  • 417
1 vote
1 answer
72 views

Asynchronous OOP-based networking using the Epic EOS SDK

There is also a limitation from the Epic EOS SDK in the absence of thread safety, all "C" calls can only be made from one thread. And from the thread where the SDK was initialized. Based on ...
Alexovsky's user avatar
2 votes
1 answer
96 views

Lazy/deferred OOP-based networking using the Epic EOS SDK

For gaming applications, networking looks strange from the point of view of traditional approaches. Much of the game logic is based on "ticks"; Most often this is a mandatory item of ...
Alexovsky's user avatar
1 vote
2 answers
545 views

Split netmask or ip address

I've written a python function to split a netmask or an ip address. The code is about to become part of a custom router api. ...
Looser User's user avatar
0 votes
1 answer
130 views

Handling multiple socket communication in Python Client-Server application [closed]

I'm developing a client-server game application in Python. Here's the scenario: Clients connect to the server and register. After registration, all clients see a main menu. One client can initiate a ...
wallyyopp's user avatar
2 votes
1 answer
98 views

sendmsg() scatter-gather coroutine awaiter, optimized suspending

My attempt at an Awaiter for sending scatter-gather data over an open file descriptor. Tested only on gcc-13.1.1 Micro-optimizing by suspending the coroutine only ...
serafean's user avatar
3 votes
1 answer
78 views

Access integer field in network packet

I see three complexities in accessing (reading/writing) integer field in network packet. Handle endianness. Integer in network packet is big-endian (BE). The host may be either big-endian or little-...
Lingxi's user avatar
  • 818
5 votes
1 answer
712 views

Python script that identifies the country code of a given IP address

This is a Python script I wrote to identify the country code of a given IP address, using data obtained from tor. It uses geoip.txt to identify country code for IPv4 addresses, and geoip6.txt to do so ...
Ξένη Γήινος's user avatar
5 votes
3 answers
205 views

Socks4 Client/Server implementation

I implemented a basic Socks4 client and server which can handle CONNECT requests only right now also without identfication protocol support. I've tested it with a ...
mortytheshorty's user avatar
4 votes
1 answer
698 views

Python script to check network speed

This is a Python script I wrote to check internet download speed and upload speed. I wrote this because I live in China behind the GFW, and I use VPNs to browse international free internet, and my ISP ...
Ξένη Γήινος's user avatar
10 votes
5 answers
853 views

Follow Up: struct sockaddr storage initialization by network format-string

This is a follow up to: struct sockaddr_storage initialization by network format string First of all thanks to @Haris, @Toby Speight, @G. Sliepen and @chux - Reinstate for their help. I learned a lot ...
mortytheshorty's user avatar
8 votes
3 answers
931 views

struct sockaddr_storage initialization by network format string

I am writing a wrapper library for network functionality in C and wanted to let the user let the user initialize a struct sockaddr_storage with a format string. Format ist like: "proto:host:port/...
mortytheshorty's user avatar
3 votes
3 answers
138 views

Follow up: A chat server using the select() API

This is a follow up to my last question: Multiperson chat server using the select() API Changes: After much fine critique, I made the following changes to the code: Removed redundant casts and ...
Harith's user avatar
  • 8,978
11 votes
2 answers
1k views

Multiperson chat server using the select() API

I followed the Beej's Guide to Network Programming. The program acts like a multi-user chat server. One connects and sends a message to the server, which is forwarded to all that are connected. There'...
Harith's user avatar
  • 8,978
5 votes
2 answers
347 views

Tiny Network Web Framework / Library in C++

I recently wrote a tiny network library in C++17 called Turtle on Linux and wish to seek some improvement advice on how to further develop it. Any insights would be appreciated. Origin: As a student, ...
I Love Turtle's user avatar
3 votes
2 answers
267 views

Forward TCP packets from one connection to another

I am new to Rust but well versed in Go. I have written the following program which initiates connection to the remote-addr and starting a thread to listen to the ...
Nick's user avatar
  • 131
2 votes
1 answer
18k views

Brute-force cracking a wireless network password

I am working on my first brute force experiment and I modified code from this SO post but it is kinda slow. Are there any improvements I can make to make it run faster? What the code basically does is ...
seriously's user avatar
  • 163
1 vote
1 answer
153 views

A Tor-enabled daytime client

The following is a daytime client written in C that uses Tor to connect to a given daytime server. It assumes a Tor daemon is running on the system and that Tor can be reached via a specified UNIX ...
JohnScott's user avatar
  • 171
2 votes
0 answers
307 views

TCP&UDP Networking Library Design

Edit: This question is dead, so I am making an edit in hopes that someone who does have the time to look over my code sees it. If you have any way for me to improve this question/ask some other ...
Jakob Tinhofer's user avatar
3 votes
1 answer
239 views

Find proceses listening on the network outside of default package manager v2

So this is a follow up questions to Find proceses listening on the network outside of default package manager I managed to make it a little faster thanks to using ...
N3buchadnezzar's user avatar
4 votes
2 answers
357 views

Find proceses listening on the network outside of default package manager

I have been tinkering with a script that should list things that are listening on the network, but are not part of the base packaging manager. Currently I have only done support for fedora and debian ...
N3buchadnezzar's user avatar
5 votes
1 answer
433 views

Linux netlink kernel socket arp cache getter (similar to ip ne)

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legale's user avatar
  • 151
4 votes
0 answers
212 views

First Lua program - Print external IP and VPN status

I started learning Lua yesterday and wanted to write a quick program as a practice. It queries an external service for the IP address and country code, and naively check for the existence of network ...
luanoob's user avatar
  • 41
9 votes
1 answer
1k views

Porting C-style socket to CPP class

I am porting the C-style socket to design a simple wrapper around the telnet client in CPP. The telnet protocol is accomplished by using libtelnet in C. The C-style code for this wrapper is reviewed ...
ravi's user avatar
  • 439
1 vote
1 answer
253 views

API call to list top stories using dependency injection in iOS with MVVM

I'm currently trying to find out what's the best networking architecture for MVVM applications. I couldn't find many resources and decided to go with dependency injection based architecture as per the ...
Tharindu Ketipearachchi's user avatar
1 vote
1 answer
147 views

Simple networking framework in C++

Question: What do you think about this design and the implementation? This is a simple networking framework for IPv4, IPv6 TCP client and TCP server for Linux and MS-Windows in C++14. It uses a single-...
Andre Adrian's user avatar
3 votes
1 answer
126 views

Simple networking framework in C

Question: What do you think about this design and the implementation? This is a simple networking framework for IPv4, IPv6 TCP client and TCP server for Linux and MS-Windows in C. It uses a single-...
Andre Adrian's user avatar
1 vote
1 answer
280 views

NTP client displaying reference, originate, receive and transmit timestamps periodically with graceful shutdown in C#

based on this stackoverflow topic: https://stackoverflow.com/a/12150289/15270760 I have decided to create a simple NTP client displaying difference between NTP server response and DateTime.Now called ...
Artur's user avatar
  • 169
2 votes
0 answers
341 views

Networking code for a Golang P2P library

I am working in a Noise-based P2P lib that has only basic TCP networking implemented so far. I am looking for anyone who get interested in this project that want to helps with reviews to the code and ...
Geo's user avatar
  • 21
3 votes
2 answers
2k views

Multithreaded tcp server accepting two clients with task factory and graceful shutdown

as an exercise from multithreading and networking I have decided to create my own implementation of TCP server accepting connections from two clients (which is I think a pretty common case e.g. chess ...
Artur's user avatar
  • 169
3 votes
0 answers
389 views

boost-asio reverse proxy

I wrote reverse proxy using boost::asio. The idea is to send client's data to two external servers and send back response from one of them. Here is my code: ...
rudolfninja's user avatar
6 votes
2 answers
887 views

Bash-based Port scanner (/dev/tcp)

This question is ideal in my case: Ludisposed's python-scapy-tcp-port-scan-of-subnet - At codereview stackexchange But this is not Scapy; nor Python(it might get used in the future though but that is ...
William Martens's user avatar
4 votes
1 answer
216 views

Online check with retry logic and anti-flapping

I've got a network device that doesn't hold its WiFi connection brilliantly and occasionally drops off the network completely. Although there are dedicated network monitoring tools out there, I ...
Gordon Mckeown's user avatar
1 vote
2 answers
136 views

IPAddress Range access

I want to make this code better and easier to read. It works now but I think it can be better. When there is an Inbound request I check to see if that accessKey is setup for IP address Range that will ...
Jefferson's user avatar
5 votes
1 answer
736 views

Task-based TCP socket wrapper class

Recently I've been entertaining the idea of making a small encrypted chat app as a way to learn about UI, encryption and networking in C#. After some research/work, I've produced the below protocol ...
SomewhereOutInSpace's user avatar
1 vote
1 answer
158 views

simple code that tries to establish tcp handshake. Creating tun device | what ever ip packets message comes try sending valid response.checksum&TCP

So I am getting packets from TUN interface and after that processing the packet, and then try to send correct TCP handshake response message. It does handle sequence and ack sequence handling but That ...
user786's user avatar
  • 145
7 votes
2 answers
117 views

Network utility tool

I wrote a little program in C based on some requirements: Ping every IP from a file and check the result Show, by network adapter, ONLY the IP, subnet, default gateway and DNS Check the speed between ...
Norhther's user avatar
  • 269
3 votes
1 answer
537 views

Creating a Client-Side Prediction and Server Reconciliation

Preface I have been trying to find out "How to make Client-side Prediction and Server Reconciliation" from scratch with an easy-to-understand code in C#. So I decided to make my own ...
ガブリエル Gabriel's user avatar
4 votes
0 answers
111 views

Barebones DNS Client in Rust

I'm starting to learn about networking and as a project I am building a really simple DNS client in Rust. Functionality to start was just to take a command line domain argument and sending a DNS A ...
matthewmturner's user avatar
2 votes
0 answers
52 views

Rust program to create mail.tm accounts

I have created a rust program to create https://mail.tm accounts, but I think there are things I could have done better. Are there things I can do to improve performance? Are there any unnecessary ...
cavalry1223's user avatar
1 vote
1 answer
6k views

How to continiously read data from a NetworkStream

So I'm currently learning about networking between a client and a server and I decided to try to write my own client and server. I implemented a way of receiving data and it goes as follows.. The ...
RileyDan's user avatar
  • 123
1 vote
1 answer
1k views

Program to continuously check availability of internet connection c#

I have a C# program to check if a hard coded host is available and if not, waits then checks again (this is a loop in form of recursion). How can it be enhanced? ...
user14773854's user avatar
1 vote
1 answer
96 views

Android APP FTP host profile class implementation

This is a follow-up question for Android APP connect to FTP server in Java. I am attempting to create a tiny FTP host manager with FTPHostProfile class and ...
JimmyHu's user avatar
  • 5,214
1 vote
1 answer
313 views

Gather all IP addresses of a host as a vector

I have the following working code to get IPv4/v6 addresses from host names: ...
Richard Neumann's user avatar
4 votes
0 answers
2k views

Android APP connect to FTP server in Java

I am attempting to build an Android APP with the ability to connect specified FTP server in Java. The connection operation has been performed in FTPconnection class ...
JimmyHu's user avatar
  • 5,214
2 votes
2 answers
311 views

Getting metadata from MusicBrainz service

I've written a program which does the following things: calls third-party utility to get mp3 file fingerprint asks MusicBrainz IDs from AcoustID service asks metadata from MusicBrainz for each ID I'...
Maxim Voloshin's user avatar
2 votes
1 answer
143 views

MAC address-based presence detection

This code integrates with dweet and freeboard to produce a dashboard display of which occupants of a house are probably at home, based on the presence or absence of their phones' MAC addresses on the ...
user avatar
4 votes
0 answers
289 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 ...
JeremiahDixon's user avatar
4 votes
1 answer
762 views

Boost.Asio Server and RAII

I am trying to implement a network server application in C++ using Boost.Asio. Here are the requirements I am trying to meet: The Application creates only one instance of ...
MarekR's user avatar
  • 141
1 vote
1 answer
145 views

Networking library for c++ linux

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The Masked Rebel's user avatar

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