program

Server side 

#include<stdio.h>

#include<sys/socket.h>

#include<netinet/in.h>

#include<unistd.h>

#include<sys/time.h>

#include<arpa/inet.h>

int main()

{

int server_sockfd,client_sockfd;

int server_len,client_len;

char msg1[100],msg2[100];

time_t t;

struct sockaddr_in server_address,client_address;

server_sockfd=socket(AF_INET,SOCK_STREAM,0);

server_address.sin_family=AF_INET;

server_address.sin_port=4006;

server_address.sin_addr.s_addr=inet_addr("127.0.0.1");

server_len=sizeof(server_address);

bind(server_sockfd,(struct sockaddr *)&server_address,server_len);

listen(server_sockfd,5);

client_len=sizeof(client_address);

client_sockfd=accept(server_sockfd,(struct sockaddr

*)&client_address,&client_len);

read(client_sockfd,msg2,sizeof(msg2));

puts(msg2);

t=time(NULL);

sprintf(msg1,"%24s",ctime(&t));

write(client_sockfd,msg1,sizeof(msg1));

close(client_sockfd);

}

Client side

#include<stdlib.h>

#include<sys/types.h>

#include<sys/socket.h>

#include<netinet/in.h>

#include<stdio.h>

#include<arpa/inet.h>

#include<unistd.h>

int main()

{

int sockfd,len,result;

struct sockaddr_in address;

char msg1[100],msg2[100];

sockfd=socket(AF_INET,SOCK_STREAM,0);

address.sin_family=AF_INET;

address.sin_port=4006;

address.sin_addr.s_addr=inet_addr("127.0.0.1");

len=sizeof(address);

result=connect(sockfd,(struct sockaddr *)&address,len);

if(result == -1)

{

perror("oops : client1");

exit(1);

}

printf("Enter::");

gets(msg2);

write(sockfd,msg2,sizeof(msg2));

read(sockfd,msg1,sizeof(msg1));

printf("\n Time of server is::");

puts(msg1);

return(0);

}