client6.c

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

void main()
{
	int sock;
	unsigned int len;
	int n,ans;
	char ch[3] = "no";
	char ch1[3];
	struct sockaddr_in client;
	if((sock=socket(AF_INET,SOCK_STREAM,0))==-1){
		perror("socket: ");
		exit(-1);
	}

	client.sin_family=AF_INET;
	client.sin_port=htons(10000);
	client.sin_addr.s_addr=INADDR_ANY;

	bzero(&client.sin_zero,0);


	len=sizeof(struct sockaddr_in);
	if((connect(sock,(struct sockaddr *)&client,len))==-1){
		perror("connect: ");
		exit(-1);
	}

	while(1)
	{	
		printf("Enter n\n");
		scanf("%d", &n);
		send(sock, &n, sizeof(n), 0);
		recv(sock, &ans, sizeof(ans), 0);
		printf("Answer = %d\n", ans);
		printf("\ndo you want to exit...press 'no'\n");
        scanf("%s",ch1);
        if(strcmp(ch,ch1))
        {
            close(sock);
            exit(0);
        }
	}	
}