TCP ECHO PROGRAM

***************************************SERVER*******************************

#include<stdio.h>
#include<netinet/in.h>
#include<netdb.h>
#define SERV_TCP_PORT 5035
int main(int argc,char**argv)
{
    int clen,sockfd,clientfd;
    char buffer[4096];
    struct sockaddr_in server1,client1;
    sockfd=socket(AF_INET,SOCK_STREAM,0);
    if(sockfd==-1)
    printf("Socket Creation Failed....\n");
    else
    printf("Socket Created.....\n");
    server1.sin_family=AF_INET;
    server1.sin_port=htons(SERV_TCP_PORT);
    server1.sin_addr.s_addr=INADDR_ANY;
    bind(sockfd,(struct sockaddr *)&server1,sizeof(server1));
    printf("Binding......\n");
    listen(sockfd,5);
    printf("Listening.....\n");
    clen=sizeof(client1);
    clientfd=accept(sockfd,(struct sockaddr *)&client1,&clen);
    printf("Accepted....\n");
    read(clientfd,buffer,4096);
    printf("CLIENT:-%s",buffer);
    write(clientfd,buffer,4096);
    close(sockfd);
}
   
   
******************************************CLIENT********************************


#include<stdio.h>
#include<sys/types.h>
#include<sys/socket.h>
#include<netinet/in.h>
#include<netdb.h>
#define SERV_TCP_PORT 5035
int main(int argc,char**argv)
{
    int sockfd;
    struct sockaddr_in server1;
    struct hostent *server;
    char buffer[4096];
    sockfd=socket(AF_INET,SOCK_STREAM,0);
    server1.sin_family=AF_INET;
    server1.sin_port=htons(SERV_TCP_PORT);
    server1.sin_addr.s_addr=inet_addr("127.0.0.1");;
    connect(sockfd,(struct sockaddr*)&server1,sizeof(server1));
    printf("enter Message..");
    fgets(buffer,4096,stdin);
    write(sockfd,buffer,4096);
    printf("%s",buffer);
    close(sockfd);
    return 0;
   
   

}