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multi-threaded-client-server using c programing

Frail Fowl answered on March 27, 2021 Popularity 5/10 Helpfulness 1/10

answer multi-threaded-client-server using c programing

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multi-threaded-client-server using c programing

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// socket server example, handles multiple clients using threads

#include<stdio.h>
#include<string.h>    //strlen
#include<stdlib.h>    //strlen
#include<sys/socket.h>
#include<arpa/inet.h> //inet_addr
#include<unistd.h>    //write
#include<pthread.h> //for threading , link with lpthread

//the thread function
void *connection_handler(void *);

int main(int argc , char *argv[])
{
    int socket_desc , client_sock , c , *new_sock;
    struct sockaddr_in server , client;

    //Create socket
    socket_desc = socket(AF_INET , SOCK_STREAM , 0);
    if (socket_desc == -1)
    {
        printf("Could not create socket");
    }
    puts("Socket created");

    //Prepare the sockaddr_in structure
    server.sin_family = AF_INET;
    server.sin_addr.s_addr = INADDR_ANY;
    server.sin_port = htons( 3000 );

    //Bind
    if( bind(socket_desc,(struct sockaddr *)&server , sizeof(server)) < 0)
    {
        //print the error message
        perror("bind failed. Error");
        return 1;
    }
    puts("bind done");

    //Listen
    listen(socket_desc , 3);

    //Accept and incoming connection
    puts("Waiting for incoming connections...");
    c = sizeof(struct sockaddr_in);

        c=sizeof(struct sockaddr_in);
       while(client_sock=accept(socket_desc,(struct sockaddr*)&client,(socklen_t*)&c))
       {
        puts("Connection accepted");

        pthread_t sniffer_thread;
        new_sock = malloc(1);
        *new_sock = client_sock;

        if( pthread_create( &sniffer_thread , NULL ,  connection_handler , (void*) new_sock) < 0)
        {
            perror("could not create thread");
            return 1;
        }

        puts("Handler assigned");
    }

    if (client_sock < 0)
    {
        perror("accept failed");
        return 1;
    }
    return 0;
}
/*
  This will handle connection for each client
  */
void *connection_handler(void *socket_desc)
{
    //Get the socket descriptor
    int sock = *(int*)socket_desc;
    int n;

        char    sendBuff[100], client_message[2000];

      while((n=recv(sock,client_message,2000,0))>0)
      {

        send(sock,client_message,n,0);
      }
      close(sock);

      if(n==0)
      {
        puts("Client Disconnected");
      }
      else
      {
        perror("recv failed");
      }
    return 0;
}

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Source: stackoverflow.com

Tags: c using whatever

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Contributed on Oct 31 2024

Frail Fowl

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Ah, I see you are a man of culture

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Contributed on Nov 19 2021

Hamza Haseeb

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I still love you Atom <3

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Contributed on Mar 27 2021

lakshay.me

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best choice ever

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Contributed on Apr 18 2021

Homeless Hippopotamus

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vs code is a very good ide for beginners and professionals too. I recommend it.


- a cat person

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Contributed on Jul 05 2021

Expensive Emu

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The Best Code Editor Ever Visual Studio Code

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Contributed on Aug 03 2021

Yasin

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Best code editor in existence

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Contributed on Dec 17 2021

Proud Polecat

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The best (free) Code Editor out there! Happy coding :)

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Contributed on Mar 24 2023

LitHub SlowPilot

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Nice Choise, Best For Web Developement! (;

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Contributed on Jul 08 2021

Tan_Xin

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Contributed on Apr 03 2021

Disgusted Dragonfly

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Best Code Editor with built in emmet

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Contributed on Apr 01 2021

Fair Fowl

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