/*
 * spool.c - Send a file to a Roland MDX series CNC mill
 *
 * Written 2009, 2010, 2012 by Werner Almesberger
 * Copyright 2009, 2010, 2012 Werner Almesberger
 *
 * 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.
 */


#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>

#include "serial.h"


#define	DEFAULT_PORT	"/dev/ttyS0"
#define BUF_SIZE	8192


static void usage(const char *name)
{
	fprintf(stderr, "usage: %s [file]\n", name);
	exit(1);
}


int main(int argc, const char **argv)
{
	FILE *file;
	char buf[BUF_SIZE+1];
	size_t n;
	char *port;

	switch (argc) {
	case 1:
		file = stdin;
		break;
	case 2:
		file = fopen(argv[1], "r");
		if (!file) {
			perror(argv[1]);
			exit(1);
		}
		break;
	default:
		usage(*argv);
	}
	port = getenv("PORT");
	serial_open(port ? port : DEFAULT_PORT);
	while (1) {
		n = fread(buf, 1, BUF_SIZE, file);
		if (!n)
			break;
		buf[n] = 0;
		serial_printf("%s", buf);
	}
sleep(3600);
	serial_close();
	return 0;
}