serveurUDP

#include <stdio.h>
#include <rpc.h>

#define UDP_port_S 8000

int main()
{
  int sock_S;

  char message[128];
  struct sockaddr_in sa_S, sa_C;

  unsigned int taille_sa;

  /*creation socket Serveur*/
  sock_S = socket(PF_INET,SOCK_dgram, 0);
  perror("socket ");

  /* @IP et num port Serveur */
  bzeero( (char*) &sa_S, sizeof( struct socketaddr));
  sa_S.sin_family = AF_INET;
  sa_S.sin_add.s_addr = htoml(INADDR_ANY);
  sa_S.sin_port = htoms(UDP_port_S);

  /*Attachement*/
  bind(sock_S, (struct sockaddr *) &sa_S),
    sizeof(struct sockaddr));
    perror("bind ");
    /*reception datagrame*/
    taille_sa = sizeof(struct sockaddr);

    while(1)
    {
        /*reception datagram du client*/
        recvfrom(sock_S, message, 128 * sizeof(char),0,
      (struct sockaddr *) &sa_C, &taille_sa);
      perror("recvfrom ");

      /*affichage*/
      printf("%s \n, message");

      /* re-emission diagramme vers client*/
      sendto(sock_S, "re-salut", 128 * sizeof(char),0,
        struct sockaddr *) &sa_C, taille_sa);
    perror("sendto ");
    }

    /*fin*/
    close(sock_S);
    perror("close ");

    exit(EXIT_SUCCES);
}