/*
 * Authors: Petr Spacek <pspacek@redhat.com>
 *
 * Copyright (C) 2012  Red Hat
 * see file 'COPYING' for use and warranty information
 *
 * 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; version 2 or later
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#include <isc/mem.h>
#include <isc/result.h>
#include <isc/util.h>
#include <isc/hash.h>

#include <dns/db.h>
#include <dns/rbt.h>
#include <dns/result.h>

#include <string.h>

void
logger(const char *format, ...)
{
	va_list args;

	va_start(args, format);
	vfprintf(stderr, format, args);
	va_end(args);
}

#define CHECK(op)						\
	do {							\
		logger("%4u: %s = ", __LINE__, #op);		\
		result = (op);					\
		logger("%s\n", dns_result_totext(result));	\
		if (result != ISC_R_SUCCESS)			\
			goto cleanup;				\
	} while (0)

int
main (int argc, char ** argv) {
	isc_result_t result = ISC_R_SUCCESS;
	dns_db_t  *rbtdb = NULL;
	isc_mem_t *mctx = NULL;
	void *node = NULL;

	CHECK(isc_mem_create2(0, 0, &mctx, ISC_MEMFLAG_DEFAULT));
	CHECK(isc_hash_create(mctx, NULL, 256));
	CHECK(dns_db_create(mctx, "rbt", dns_rootname, dns_dbtype_zone,
			    dns_rdataclass_in, 0, NULL, &rbtdb));

	CHECK(dns_db_getoriginnode(rbtdb, &node));
	dns_db_printnode(rbtdb, node, stderr);
	dns_db_detachnode(rbtdb, &node);

	CHECK(dns_db_getoriginnode(rbtdb, &node));
	dns_db_printnode(rbtdb, node, stderr);
	dns_db_detachnode(rbtdb, &node);

cleanup:
	if (result != ISC_R_SUCCESS)
		logger("error: %s\n", dns_result_totext(result));

	(void) argc;
	(void) argv;

	return 0;
}