/*
    Copyright (C) 2018 Carl Hetherington <cth@carlh.net>

    This file is part of DCP-o-matic.

    DCP-o-matic 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.

    DCP-o-matic 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 DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.

*/

#include <cstdio>

int main ()
{
#ifdef DCPOMATIC_LINUX	
	FILE* f = fopen ("/sys/class/dmi/id/product_uuid", "r");
	if (!f) {
		printf ("unknown");
		return 1;
	}
	char buffer[256];
	int const N = fread (buffer, 1, 255, f);
	buffer[N] = '\0';
	printf ("%s", buffer);
	fclose (f);
	return 0;
#endif
	printf ("unknown");
	return 1;
}