Server and client stuck in 1 clients

[007fred50]

Hello,

I'm trying to create a serer and clients. but then i added more that 1 client the server does not know with one client to send back to !

I think it's on
send(newSocket, name, strlen(name), 0);



all what i want to server send back to the client, but not the same client.
different if there are 2 client

Server:

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<unistd.h>
#include<sys/socket.h>
#include<sys/types.h>
#include<netinet/in.h>
#include<arpa/inet.h>
#include<inttypes.h>

#definePORT4444

intfindIndex(int *array, size_tsize, inttarget)
{
  int i = 0;
  while ((i < size) && (array != target))
    i++;

  return (i < size) ? (i) : (-1);
}

intmain()
{
  int countclients = 0;
  constchar *clients[] = { };
  constchar *checkclients[] = { };

  int sockfd, ret;
  struct sockaddr_in serverAddr;

  int newSocket;
  struct sockaddr_in newAddr;

  charname[1024];
  charage[1024];
  charholdname[1024];
  pid_t childpid;

  sockfd = socket(AF_INET, SOCK_STREAM, 0);
  if (sockfd < 0) {
    printf("[-]Error in connection. \n");
    exit(1);
  }
  printf("[+]Server Socket is created. \n");

  memset(&serverAddr, '\0', sizeof(serverAddr));
  serverAddr.sin_family = AF_INET;
  serverAddr.sin_port = htons(PORT);
  serverAddr.sin_addr.s_addr = inet_addr("127.0.0.1");

  ret = bind(sockfd, (struct sockaddr *) &serverAddr, sizeof(serverAddr));
  if (ret < 0) {
    printf("[-]Error in binding");
    exit(1);
  }
  printf("[+]Bind port to %d\n", PORT);

  if (listen(sockfd, 10) == 0) {
    printf("Listening....\n");
  } else {
    printf("[-]Error in binding. \n");
  }

  while (1) {
    socklen_t newAddrLength = sizeof(newAddr);
    newSocket = accept(sockfd, (struct sockaddr *) &newAddr, &newAddrLength);
    if (newSocket < 0) {
      exit(1);
    }
    // printf("%d", newSocket[0]);

    printf("login to server: \n");

    printf("Connection accepted from %s:%" PRIu16 "\n",
           inet_ntoa(newAddr.sin_addr), ntohs(newAddr.sin_port));

    if ((childpid = fork()) == 0) {
      printf("check childpid: \n");

      close(sockfd);

      while (1) {
        printf("check childpid inside while: \n");

        recv(newSocket, name, 1024, 0);
        recv(newSocket, age, 1024, 0);
        if (strcmp(name, ":exit") == 0) {
          printf("disconnection from %s:%" PRIu16 "\n",
                 inet_ntoa(newAddr.sin_addr), ntohs(newAddr.sin_port));
        } else {
          printf("send and recive code: \n");

          charnameinserver[1024];
          charageinserver[1024];

          for (int i = 0; i <= countclients; i++) {
            printf("works \n");

            charconnectclient[1024];
            sprintf(connectclient, "%s:%d", inet_ntoa(newAddr.sin_addr),
                    ntohs(newAddr.sin_port));
            clients = connectclient;
            charcheckclient[1024];
            sprintf(checkclient, "%s:%d", inet_ntoa(newAddr.sin_addr),
                    ntohs(newAddr.sin_port));

            if (strcmp(checkclient, clients) == 0) {
              checkclients = checkclient;
              sprintf(nameinserver, "%s Name: %s", checkclients, name);
              sprintf(ageinserver, "%s Age: %s", checkclients, age);
            } else {
              countclients++;
              charconnectclient[1024];
              sprintf(connectclient, "%s:%d", inet_ntoa(newAddr.sin_addr),
                      ntohs(newAddr.sin_port));
              clients[i + 1] = connectclient;
              charcheckclient[1024];
              sprintf(checkclient, "%s:%d", inet_ntoa(newAddr.sin_addr),
                      ntohs(newAddr.sin_port));
              sprintf(nameinserver, "%s Name: %s", checkclients[i + 1], name);
              sprintf(ageinserver, "%s Age: %s", checkclients[i + 1], age);
            }
          }

          printf("%s\n", nameinserver);
          printf("%s\n", ageinserver);
          send(newSocket, name, strlen(name), 0);
          send(newSocket, age, strlen(age), 0);
          bzero(name, sizeof(name));
          bzero(age, sizeof(age));
          // break;
        }
      }
    }
  }
  printf("close \n");
  close(newSocket);

  return0;
}

Client:

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<unistd.h>
#include<sys/socket.h>
#include<sys/types.h>
#include<netinet/in.h>
#include<arpa/inet.h>

#definePORT4444

intmain()
{
  int clientSocket, ret;
  struct sockaddr_in serverAddr;
  charname[1024];
  charage[1024];

  clientSocket = socket(AF_INET, SOCK_STREAM, 0);
  if (clientSocket < 0) {
    printf("[-]Error in cannection. \n");
    exit(1);
  }
  printf("[+]Client Spcket is created \n");

  memset(&serverAddr, '\0', sizeof(serverAddr));
  serverAddr.sin_family = AF_INET;
  serverAddr.sin_port = htons(PORT);
  serverAddr.sin_addr.s_addr = inet_addr("127.0.0.1");

  ret =
      connect(clientSocket, (struct sockaddr *) &serverAddr,
              sizeof(serverAddr));
  if (ret < 0) {
    printf("[-]Error in conncation");
    exit(1);
  }

  while (1) {
    printf("Client Name: ");
    scanf("%s", &name[0]);
    printf("Client Age: ");
    scanf("%s", &age[0]);
    send(clientSocket, name, strlen(name), 0);
    send(clientSocket, age, strlen(age), 0);

    if (strcmp(name, ":exit") == 0 || strcmp(age, ":exit") == 0) {
      close(clientSocket);
      printf("[-]Disconnected from server");
      exit(1);
    }

    if (recv(clientSocket, name, 1024, 0) < 0
        || recv(clientSocket, age, 1024, 0) < 0) {
      printf("[-]Error in receivng data \n");
    } else {
      printf("Server: \t%s\n", name);
      printf("Server: \t%s\n", age);
    }
  }

  return0;
}

Thanks for helping me