client.c

/*Client Side*/

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

int main()
{
  int sd, con, port, i, Res;
  char content[255];
  struct sockaddr_in cli;
  if ((sd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1)
  {
    printf(“\nSocket problem”);
    return 0;
  }

  bzero((char *)&cli, sizeof(cli));
  cli.sin_family = AF_INET;
  printf("ENTER PORT NO:\n");
  scanf("% d", &port);
  cli.sin_port = htons(port);
  cli.sin_addr.s_addr = htonl(INADDR_ANY);
  con = connect(sd, (struct sockaddr *)&cli, sizeof(cli));

  if (con == -1)
  {
    printf("\nConnection error ");
    return 0;
  }
  if (fork())
  {
    printf("\nEnter the data to be send type exit for stop:\n\e[1;33m");
    gets(content);
    while (strcmp(content, "exit") != 0)
    {
      gets(content);
      send(sd, content, 255, 0);
    }
    send(sd,”exit”, 5, 0);
  }
  else
  {
    i = recv(sd, content, 255, 0);
    while (strcmp(content, "exit") != 0)
    {
      printf("\e[1;34mServer: %s\e[1;33m\n", content);
      i = recv(sd, content, 255, 0);
    }
    send(sd, "exit", 5, 0);
  }
  close(sd);
  printf("\e[0m");
  return 0;
}