#include "rd.h"

main (argc, argv)
     int argc;
     char *argv[];
{
  char dir[DIRSIZE];
  int sd, len_addr;
  struct sockaddr_in serv_addr, clie_addr;
  struct hostent *hp;

/* Deschide un socket */
  if ((sd = socket (AF_INET, SOCK_DGRAM, 0)) < 0)
    ERR ("socket", 1);

/* Obtine adresa IP a serverului */
  if (!(hp = gethostbyname (argv[1])))
    ERR ("gethostbyname", 2);

/* Pregateste adresa server pentru conexiune */
  memset ((char *) &serv_addr, 0, sizeof (serv_addr));
  serv_addr.sin_family = AF_INET;
  memcpy (hp->h_addr, (char *) &serv_addr.sin_addr.s_addr,
	  hp->h_length);
  serv_addr.sin_port = htons (PORT_SERVER);

/* Pregateste adresa client pentru bind */
  memset ((char *) &clie_addr, 0, sizeof (clie_addr));
  clie_addr.sin_family = AF_INET;
  clie_addr.sin_addr.s_addr = htonl (INADDR_ANY);
  clie_addr.sin_port = htons (0);

/* bind */
  if (bind (sd, (struct sockaddr *) &clie_addr,
	    sizeof (clie_addr)) < 0)
    ERR ("bind", 3);

/* Trimite o cerere catre server */
  if (sendto (sd, argv[2], strlen (argv[2]), 0,
	      (struct sockaddr *) &serv_addr,
	      sizeof (serv_addr)) < 0)
    ERR ("sendto", 4);

/* Asteapta raspunsul de la server */

  len_addr = sizeof (serv_addr);
  memset ((char *) &serv_addr, 0, len_addr);
  if (recvfrom (sd, dir, DIRSIZE, 0,
	   (struct sockaddr *) &serv_addr, &len_addr) < 0)
    ERR ("recvfrom", 5);

/* Tipareste rezultatul */
  printf ("%s\n", dir);
  close (sd);
}
/* Programul 3.9 Sursa clientului rdcu.c */