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

#define PORT 3490

int main(){

	int sockfd;
	struct sockaddr_in serv_addr;
	struct hostent *server;
	char buffer[256];

	if( sockfd = socket( PF_INET, SOCK_STREAM, 0) == -1){
		perror("socket");
		exit(1);
	}

	server = gethostbyname("localhost");

	if( server == NULL){
		perror("no such host");
		exit(1);
	}

	bzero( (char *) &serv_addr, sizeof(serv_addr));
	serv_addr.sin_family = AF_INET;
	bcopy( (char *) server->h_addr, (char*) &serv_addr.sin_addr.s_addr, server->h_length);
	serv_addr.sin_port = htons(PORT);

	if( connect(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) == -1){
		perror("connect");
		exit(2);
	}

	printf("Enter the message: ");
	bzero(buffer,256);
	fgets(buffer,255,stdin);

	if( write(sockfd, buffer, strlen(buffer)) == -1){
		perror("write");
		exit(3);
	}

	bzero(buffer,256);

	if( read( sockfd, buffer, 256) == -1){
		perror("read");
		exit(4);
	}

	printf("%s\n",buffer);

	return 0;
}