TCP CLIENT SERVER '"CHAT PROGRAM"

// SERVER PROGRAM

#include <stdio.h>
#include <errno.h>
#include <sys/socket.h>
#include <resolv.h>
#include<netinet/in.h>
#include<sys/types.h>
int main()
{
char buff[2000];
int sd,connfd,len,n;
struct sockaddr_in servaddr,cliaddr;
sd=socket(AF_INET,SOCK_STREAM,0);
if(sd==-1)
{
    printf(" socket not created in server\n");
    exit(0);
}
else
{
    printf("socket created in  server\n");
}
bzero(&servaddr, sizeof(servaddr));
servaddr.sin_family = AF_INET;
servaddr.sin_addr.s_addr = INADDR_ANY;
servaddr.sin_port = htons(5207);
if ( bind(sd, (struct sockaddr *)&servaddr, sizeof(servaddr)) != 0 )
    printf("Not binded\n");
else
    printf("Binded\n");
if(listen(sd,1)!=0)
    printf("Not listened\n");
else
    printf("Listened\n");
len=sizeof(cliaddr);
connfd=accept(sd,(struct sockaddr *) &cliaddr, &len);
if(connfd!=0) 
    printf("Server accepted client \n");
else
    printf("Server not accepted client\n");
while(n<3)

{
recv(connfd,buff,1024,0);
printf("Serever received msg from client  %s",buff);

Printf(“Type message\n”);

scanf("%s",buff);

Send(connfd,buff,1024,0);//send message to client

n++;

}
close(sd);
return(0);
}




                       

// CLIENT PROGRAM

#include <stdio.h>
#include <errno.h>
#include <sys/socket.h>
#include <resolv.h>
#include<netinet/in.h>
#include<sys/types.h>
int main()
{
char buff[2000];
int sockfd,connfd,len,n;
struct sockaddr_in servaddr,cliaddr;
// create socket in client side
sockfd=socket(AF_INET,SOCK_STREAM,0);
if(sockfd==-1)
{
    printf(" socket not created in client\n");
    exit(0);
}
else
{
    printf("socket created in  client\n");
}
bzero(&servaddr, sizeof(servaddr));
servaddr.sin_family = AF_INET;
servaddr.sin_addr.s_addr = INADDR_ANY; // ANY address or use specific address
servaddr.sin_port = htons(7802);  // Port address
// client connected to server using server address
if(connect(sockfd,(struct sockaddr *)&servaddr, sizeof(servaddr) )!=0)
{
    printf("client not connected to server\n");
    exit(0);
}
else
{
    printf("client connected to server\n");
}

While(n<3)

{
    printf("Type ur client message\n");
    scanf("%s",buff);
// send  msg to server
   send(sockfd,buff,1024,0);

//recive msg

recv(sockfd,buff,1024,0);
printf("Client received msg from client  %s",buff);

n++;

}

//close client side connection
close(sockfd);
return(0);
}