// Client TCP
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <netinet/in.h>
#include <signal.h>
#include <netdb.h>
#define ERR(source) (perror(source),\
		     fprintf(stderr,"%s:%d\n",__FILE__,__LINE__),\
		     exit(EXIT_FAILURE))
#define HERR(source) (fprintf(stderr,"%s(%d) at %s:%d\n",source,h_errno,__FILE__,__LINE__),\
		     exit(EXIT_FAILURE))

int sethandler( void (*f)(int), int sigNo) {
	struct sigaction act;
	memset(&act, 0, sizeof(struct sigaction));
	act.sa_handler = f;
	if (-1==sigaction(sigNo, &act, NULL))
		return -1;
	return 0;
}
struct sockaddr_in make_address(char *address, uint16_t port){
	struct sockaddr_in addr;
	struct hostent *hostinfo;
	addr.sin_family = AF_INET;
	addr.sin_port = htons (port);
	hostinfo = gethostbyname(address);
	if(hostinfo == NULL)HERR("gethostbyname");
	addr.sin_addr = *(struct in_addr*) hostinfo->h_addr;
	return addr;
}


void usage(char * name){
	fprintf(stderr,"USAGE: %s domain port  operand1 operand2 operation \n",name);
}

int main(int argc, char** argv) {
	int fd;
	int32_t data[5];
	if(argc!=6) {
		usage(argv[0]);
		return EXIT_FAILURE;
	}

// HERE
return EXIT_SUCCESS;
}