/*
 * Copyright (C) 2015 Jan-Piet Mens <jpmens@gmail.com> and OwnTracks
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * JAN-PIET MENS OR OWNTRACKS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */

#include <stdio.h>
#include <string.h>
#include "lmdb.h"

int main(int argc,char **argv)
{
	int rc;
	MDB_env *env;
	MDB_dbi dbi;
	MDB_val key, data;
	MDB_txn *txn;
	MDB_cursor *cursor;

	if (argc != 2) {
		fprintf(stderr, "Usage: %s storage-directory/ghash\n", *argv);
		return (1);
	}

	rc = mdb_env_create(&env);
	rc = mdb_env_open(env, argv[1], 0, 0664);
	if (rc) {
		fprintf(stderr, "%s: %s: %s\n", *argv, argv[1], mdb_strerror(rc));
		return (2);
	}

	key.mv_size = 0;
	key.mv_data = NULL;
	
	rc = mdb_txn_begin(env, NULL, MDB_RDONLY, &txn);
	rc = mdb_dbi_open(txn, NULL, 0, &dbi);
	rc = mdb_cursor_open(txn, dbi, &cursor);
	while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
		printf("%*.*s %*.*s\n",
			(int)key.mv_size, (int)key.mv_size, (char *)key.mv_data,
			(int)data.mv_size, (int)data.mv_size, (char *)data.mv_data);
	}
	mdb_cursor_close(cursor);
	mdb_txn_abort(txn);

	mdb_dbi_close(env, dbi);
	mdb_env_close(env);
	return (0);
}