#include <cstdlib>
#include <iostream> 
#include <winsock.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#define REMOTE_SERVER_PORT 6000
#define EXIT_CALL_STRING "#quit"

char message[128];
int message_length = 0;
char remote_ip[32];

void msg_err_exit(char *msg)
{
    fprintf(stderr, msg);
    system("PAUSE");
    exit(EXIT_FAILURE);
}


int main(int argc, char **argv) {
  
  int sd, rc, i;
  struct sockaddr_in cliAddr, remoteServAddr;
  WSADATA wsaData;
  LPHOSTENT lpHostEntry; 



printf("IP do servidor: ");
    scanf("%s", remote_ip);
    fflush(stdin);
  

  WSAStartup(MAKEWORD(2,0),&wsaData);

  lpHostEntry = gethostbyname(remote_ip);
  if (lpHostEntry == NULL)
  {
       
       msg_err_exit("servidor não encontrado");
  }
  /* socket creation */
  sd = socket(AF_INET,SOCK_DGRAM,0);
  if(sd<0) {
    
    msg_err_exit("não é possivel abrir socket");
  }

  /* bind any port */
  memset(&remoteServAddr, 0, sizeof(remoteServAddr));
  cliAddr.sin_family = AF_INET;
  cliAddr.sin_addr.s_addr = htonl(INADDR_ANY);
  cliAddr.sin_port = htons(0);
  
  remoteServAddr.sin_family = AF_INET;
  remoteServAddr.sin_addr = *((LPIN_ADDR)*lpHostEntry->h_addr_list);
										// ^ Server's address
  remoteServAddr.sin_port = htons(REMOTE_SERVER_PORT);	// Port number from command line

  /* send data */
//  for(i=1;i<argc;i++) {
    do
    {
                        
    printf("msg: ");
    gets(message);
    fflush(stdin);
 
    message_length = strlen(message);
                        
                        
    rc = sendto(sd, message, message_length, 0, 
		(LPSOCKADDR) &remoteServAddr, 
		sizeof(struct sockaddr));
    if(rc<0) {
      puts("data not send!");
      WSACleanup();
      closesocket(sd);
      msg_err_exit("socket() failed\n");
    }
  }while(strcmp(message, EXIT_CALL_STRING));
  WSACleanup();
  closesocket(sd);
  system("PAUSE");
  return 0;

}