common.h

/***
 *
 */
#ifndef __COMMON_H
#define __COMMON_H
/******************************************************************************/
#include <sys/types.h> 
#include <sys/socket.h> 
#include <netinet/in.h>
#include <string.h>
#include <stdio.h>
/******************************************************************************/
#define MAXSIZE         256
#define MAXBUFLEN       264
#define PORT_SERVER     2222
#define PORT_CLIENTE    12344
#define VERSION         0x01

#define OP_NUEVO_REG    0x01
#define OP_CONSULTA_REG 0x02
#define OP_ELIM_REG     0x03

#define OP_OK       0x00
#define OP_KO       0x01

#define VERBOSE     1
#define NOVERBOSE   0
/******************************************************************************/
struct nuevo_registro /* 1 + 1 + 2 + 4 + 256 = 264 bytes */
{
    char version;
    char op;
    unsigned short puerto;
    unsigned long ip;
    char id[MAXSIZE];
} __attribute__((packed));

struct respuesta /* 1 + 1 + 256 = 258 bytes */
{
    char version;
    char op;
    char mensaje[MAXSIZE];
} __attribute__((packed));

struct resp_consulta /* 1 + 1 + 2 + 4 = 8 bytes */
{
    char version;
    char op;
    unsigned short puerto;
    unsigned long ip;
} __attribute__((packed));
/******************************************************************************/
int envia_paquete(int sockfd, struct sockaddr_in server_addr, void * paquete, int len, int verbose);
char * recibe_paquete(int sockfd, struct sockaddr_in server_addr);
/******************************************************************************/
#endif