Gustavo Palomino. Gustavo Palomino Gustavo Palomino 11 1 1 silver badge 2 2 bronze badges. It's not concrete i have ideas but not sure how to implement them.
For example I want to run the server program and wait for all 3 clients to connect to it. I'm just not sure how to count for the connections. Before asking should try something. If you are able to handle single client server application, it means you know about the functionality of accept select syatem call. Do read carefully about all these calls if you don't. Yousaf I have the server waiting for 3 connections but then the 3 clients end their code and server shows a bad file descriptor error.
Show 4 more comments. Active Oldest Votes. By calling accept three times. This is not specific enough to have an answer. To fix the first I'll so a loop. GustavoPalomino Yeah? Same as an array of anything else. Stream, ProtocolType. Listen 10 ; Console. WriteLine "Waiting for a connection GetString bytes, 0, bytesRec ; if data. GetBytes data ; handler. Send msg ; handler. Shutdown SocketShutdown. Both ; handler. WriteLine e. The output will look like Figure 1. Catch any errors.
Connect remoteEP ; Console. Receive bytes ; Console. Both ; sender. If Yes, Did you compile both. What exactly is this :. I think you should first go through the man pages of snprintf function and system function to understand how are they used.
For example, if the client sends the server 9, then that means that the client is going to send the server 9 integer numbers. Then, the server computes the sum and average of the. Finally, the client should receive those results and print them out Your input should be read from the keyboard as an ASCII character string. Maybe you can help me out a bit.
I installed ubuntu on a virtual machine. I have windows installed on my laptop. I wanted to see if I can get the date and time from my windows and display them on ubuntu. I compiled the code and it gave no errors, but when I wrote. Hi guys…can we create a loop in our socket program where the client can continously query for data n server responds to each query,without closing the sockets? Thank you for the great article. Great tutorial. I have a question.
Situation:my client and server both sockets are open and connected. Thankyou very much.. How I can send Integers, command string.. Please reply. Great article Himanshu! The explanations beneath the programs really helped me understand the concept of socket progamming.
However, I keep getting a connect failed output. Any ideas? I am having some trouble in my server side program I am having an infinte while loop on server side and I am checking few conditions on server side. If the conditions satisfy then the while loop goes on doing its work in each iteration ,however if any condition fails then the client side program ends but at server side it shows an infinte loop running without any exit.
Kindly use comments for better understandablity…….. For the first time this code runs fine.. But now when i try to run the client with the server ip it still gives me the same output.. Hi, Can you provide any examples of socket programming codes from real world i. Like how its used in industry preferably in hardware interaction paradigm e. Hi, I am doing c programming with unix…I have copied ur code and trying to run on same machine….
Please type man socket or info socket. Google socket programming. When you quit a program you should of course do first do a close call for the socket that was opened. You are not checking for errors, I lost almost an hour because of an error on bind. Permission denied. Please correct the code. Thanks for the code snippet! Very helpful. Questions: Can I connect over any port that I like?
I have some data acquisition equipment that puts out data at a given IP over port I have tried compiling and running with different ports and I connection failures.
Error : Connect Failed. This a late comment, but you deserve big kudos for this program set and explanation. This is of great benefit to my offensive security training. I need to understand the inner workings of exploits and payloads, which contain socket-related activity.
This is perfect for my current studies. Hi, I am trying to create a client server program. The server and Client in my scenario doesnt rest in the same system they are present in a distributed LAN network. Please let me know how I can bind a socket with a global IP address which i can access from an external client. Server forms the listener socket while client reaches out to the server. This is the same number which appears on protocol field in the IP header of a packet.
This is completely optional, but it helps in reuse of address and port. Listen: int listen int sockfd, int backlog ; It puts the server socket in a passive mode, where it waits for the client to approach the server to make a connection.
The backlog, defines the maximum length to which the queue of pending connections for sockfd may grow. At this point, connection is established between client and server, and they are ready to transfer data.
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