/*
 * Udaljeni RPC klijent
 * Dinko Korunic, 36355514, kreator@srk.fer.hr
 * Fri Jan 18 10:24:29 CET 2002
 */

#include <stdio.h>
#include <time.h>
#include <errno.h>
#include "echo.h"

int main(int argc, char **argv)
{
	
	CLIENT *clnt;
	echo_res *result;
	echo_reply value;
	echo_request req;
	char *server;

  /* provjeri ulazne argumente */
	if (argc != 3)
  {
		fprintf(stderr,"Usage: %s hostname message\n", argv[0]);
		exit(EXIT_FAILURE);
	}

  /* servername ptr u server varijablu */
	server = argv[1];

  /* stvori klijent rucku :-) */
	if ((clnt = clnt_create(server, ECHOPROG, ECHOVERS, "tcp")) == NULL)
  {
		clnt_pcreateerror(server);
		exit(EXIT_FAILURE);
	}

  /* napuni strukturu */
	req.message = argv[2];
	time(&req.request_time);

  /* pogledaj sto vraca posluzitelj pri spajanju */
	if ((result = echo_1(&req, clnt)) == NULL)
  {
		clnt_perror(clnt, server);
		exit(EXIT_FAILURE);
	}

  /* ima li kakav errno pri povratku sa posluzitelja */
	if (result->rpcerrno)
  {
		errno = result->rpcerrno;
		perror("Remote RPC error");
		exit(EXIT_FAILURE);
  }

  /* pogledaj napokon i vraceni rezultat */
  if (result)
  {
    time_t remotetime;

	  value = result->echo_res_u.reply;
    remotetime = value.respond_time;
		printf("Count: %d\n"
           "Response time: %s",
           value.count,
           ctime(&remotetime));
  }

  /* ugasi "rucku" :-) */
	clnt_destroy(clnt);

	exit(EXIT_SUCCESS);
}