#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <winsock2.h>

int main(int argc, char **argv)
{
	WORD RequiredVersion;
	WSADATA WData;
	SOCKET s;
	struct sockaddr_in addr;
	long val;
	struct hostent *he;

	if (argc<4) {
		printf("podaj nazwe hosta, port i liczbe jako parametry\n");
		return 1;
	}

	RequiredVersion = MAKEWORD(2, 0);

	if (WSAStartup(RequiredVersion, &WData) != 0) {
		printf("Blad inicjalizacji WinSock2\n");
		return 1;
	}

	he = gethostbyname(argv[1]);
	
	addr.sin_family = AF_INET;
	addr.sin_port = htons(atoi(argv[2]));
	addr.sin_addr.s_addr = *((unsigned long*) he->h_addr);

	s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
	connect(s, (struct sockaddr*) &addr, sizeof(addr));
	val = atoi(argv[3]);
	printf("Wysylam %d do %s\n",val,inet_ntoa(addr.sin_addr));
	val = htonl(val);
	send(s, (char*) &val, sizeof(long), 0);
	printf("Czekam na odpowiedz...\n");
	recv(s, (char*) &val, sizeof(long), 0);
	val = ntohl(val);
	printf("Odpowiedz: %d\n", val);
	closesocket(s);

	WSACleanup();
	return 0;
}