/*
 * Copyright (c) 1995, 1996 Gunther Schadow.  All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public 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.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef LLPDRV_H
#define LLPDRV_H

#include <pg_config.h>
#include "ansi.h"
#include <signal.h>
#include <stdio.h>
#include <syslog.h>
#ifndef USE_TRIP
#include "semaphor.h"
#endif

/* Error codes specifications of FAILs
 */
extern int llp_errno;

#define RF_UNSPEC 0  /* unspecified error */
#define RF_SERVER 1  /* server error */
#define RF_CLIENT 2  /* proximal client error */
#define RF_DISTAL 3  /* distal client error */
#define RF_INTERN 4  /* internal protocol error */
#define RF_EXTERN 5  /* external protocol error */
#define RF_ABORT  6  /* transaction aborted */

/* Protocols
 */
#define P_MINI 1
#define P_HYBR 2
#define P_ANSI 3

/* Seconds to wait for subprocesses to exit after signal
 */
#define WAIT_TIME 5

#ifndef BUF_SIZE
# define BUF_SIZE 1024
#endif

/* These variables are used by the proximal server
 */
extern char *to_addr;   /* destination server's address */
extern int  to_af;      /* destination server's address family */

/* bool disconnect is used by serve_proximal() and llpdrv() and tells that
 * the serving process should exit after a single transaction.
 */
extern bool disconnect;

#ifdef USE_TRIP
extern semaphor mutex;
#endif

__BEGIN_DECLS
void serve_proximal(int proto,
#ifdef USE_TRIP
		    pid_t dist_pid,
#else
		    semaphor mutex,
#endif
		    const char *client_name, int client_fd);

void serve_distal  (int proto,
#ifdef USE_TRIP
		    pid_t proxi_pid,
#else
		    semaphor mutex,
#endif
		    const char *client_name, int client_fd,
		    int distal_af, const char *distal_addr)
     __attribute__((__noreturn__));
			   
result mini2i(FILE *mini, FILE *i);
result i2mini(FILE *i, FILE *mini);
result hybr2i(FILE *hybr, FILE *i);
result i2hybr(FILE *i, FILE *hybr);
result ansi2i(ASTRM *ansi, FILE *i);
result i2ansi(FILE *i, ASTRM *ansi);
FILE  *fattach(int fd);
__END_DECLS

#endif