cabecera.c

multiplataform real time Linux monitor

/* LiMon-Server
|  Copyright (C) 2006 Marcelo Busico
|
|  Author:  Marcelo Busico    [e-mail]
|
|  This program is free software which I release under the GNU General Public
|  License. You may redistribute and/or modify this program under the terms
|  of that license as published by the Free Software Foundation; either
|  version 2 of the License, or (at your option) any later version.
|
|  This program is distributed in the hope that it will be useful,
|  but WITHOUT ANY WARRANTY; without even the implied warranty of
|  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
|  GNU General Public License for more details.  Version 2 is in the
|  LICENSE.txt file in the top level directory of this distribution.
| 
|  To get a copy of the GNU General Puplic License, write to the Free Software
|  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

/* Implementacion de la libreria que envia y recibe la cabecera */
#include "cabecera.h"
#include "socket.h"

#include <netinet/in.h> 
#include <string.h>

/* Retorna la cabecera leida de la red por el descriptor del Socket */
Cabecera recibirCabecera(int sockfd)
{
    Cabecera cabecera;
    int lectura=0;
    char pass[64];

    /* Lee el identificador */
    Lee_Socket(sockfd, (char*)&lectura, sizeof(int));
    cabecera.identificador=ntohl(lectura);
    
    /* Lee la password */
    Lee_Socket(sockfd, pass, sizeof(pass));
    strcpy(cabecera.password,pass);

    /* Retorna la cabecera */
    return cabecera;
}

/* Envia la cabecera a la red por el descriptor del Socket */
void enviarCabecera(int sockfd, Cabecera cab)
{
    int id=0;
    char pass[64];

    /* ID en formato de red */
    id=htonl(cab.identificador);
    
    /* Envia el id de la cabecera por la red */
    Escribe_Socket(sockfd, (char*) &id, sizeof(int));
    
    /* Envia la password de la cabecera por la red */
    Escribe_Socket(sockfd, cab.password, sizeof(pass));
}