/*  streamCli.c  -  sockets  */

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

#define   PORT_SERVEUR  2222

#include "creerSocket.h"
#include "streamOp.h"

int main (int argc, char * argv []) {

  int                sock, ok;

  unsigned short     port;

  struct hostent*    hp ;
  struct sockaddr_in adr ;
  socklen_t          lgradr ;

  long   l, lrep;

  if (argc < 2) { 
    fprintf(stderr, "Mauvais nombre d'arguments\n");
    fprintf(stderr, "=> Utilisation : %s machineServeur\n",argv[0]);
    exit(EXIT_FAILURE) ;
  }

  port = 0;
  sock = creerSocket(&port, SOCK_STREAM);

  /***************************************/ 
  /* Preparation de l'adresse du serveur */
  /***************************************/ 

  hp = gethostbyname (argv [1]);

  if (hp == NULL) { perror("gethostbyname"); exit(EXIT_FAILURE); }

  lgradr = sizeof(struct sockaddr_in);
  memset(&adr, 0, lgradr);
  adr.sin_family = AF_INET;
  adr.sin_port = htons (PORT_SERVEUR);

  adr.sin_addr = *((struct in_addr *) (hp -> h_addr_list[0]));

  /* et Aussi ...

     adr.sin_addr.s_addr = *((u_int32_t*) (hp -> h_addr_list[0]));

     memcpy(&adr.sin_addr, hp -> h_addr, hp -> h_length);
     adr.sin_addr.s_addr = ((struct in_addr*)(hp -> h_addr))->s_addr;

  */


  /****************************************/ 
  /*        Demande  de connexion         */
  /****************************************/ 

  ok = connect(sock, (struct sockaddr*)&adr, lgradr);
  if (ok == -1) { perror("connect"); exit(EXIT_FAILURE); }

  printf("entier a envoyer :");
  scanf("%ld",&l);

     /***************************************/ 
     /*   Envoi de l'entier a incrementer   */
     /***************************************/ 
 
     ok = writeLong(sock,&l);
     if (ok==-1 || ok==0) { perror("writeLong"); exit(EXIT_FAILURE); }

     /***************************************/ 
     /*         Reception de l'entier       */
     /***************************************/ 

     ok = readLong(sock,&lrep);
     if (ok==-1 || ok==0) { perror("readLong"); exit(EXIT_FAILURE); }

     /***************************************/ 
     /*        Exploitation de la reponse   */
     /***************************************/ 

     printf("Reponse %ld+1=%ld\n",l,lrep);

  close(sock);

  return EXIT_SUCCESS;
}