/*
 * sendtoxlog - example for sending data to xlog remotely
 * Copyright (C) 2002 Joop Stakenborg <pa4tu@amsat.org>
 *
 * 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 Library 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

/*
 *
 * Compile with 'gcc -o fromxlog fromxlog.c'
 * See the provided README for more details.
 *
 */


#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <errno.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <string.h>

#define KEY 6146 /* unique key */
#define SHMSIZE  40 /* size of shared memory */

int main (void )
{
	int shmid = -1;
	void *pt;

	for (;;)
	{	/* allocate a shared memory segment */
		if ((shmid = shmget ((key_t) KEY, SHMSIZE, 0600)) < 0)
		{
			fprintf (stderr, "No logging program...\n");
			shmid = -1;
		}
		if (shmid != -1) { /* attach  the  shared memory segment */
			if ((pt = (shmat(shmid, NULL, 0))) == (void *)-1)
			{
				perror("fromlog - shmat");
				exit(1);
			} 
			fprintf(stdout, "%s\n", (char *)pt);
			shmdt ((void *)pt); /* detach  the  shared  memory  segment */
		}
		sleep(1);
	}
	exit(0);
}
