/*

 * Copyright (C) 2019 Tim Rühsen

 *

 * This file is part of GnuTLS.

 *

 * GnuTLS 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 3 of the License, or

 * (at your option) any later version.

 *

 * GnuTLS 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 GnuTLS; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA

 */

#ifdef HAVE_CONFIG_H

#include <config.h>

#endif

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <gnutls_int.h>

#include "utils.h"

void doit(void)

{

	static const struct test_data {

		const char *

			input;

		const char *

			output;

	} test_data[] = {

		{ "%20%20", "  ", },

		{ "%20", " ", },

		{ "%2z", "%2z", },

		{ "%2", "%2", },

		{ "%", "%", },

		{ "", "", },

	};

	for (unsigned it = 0; it < countof(test_data); it++) {

		const struct test_data *t = &test_data[it];

		gnutls_buffer_st str;

		int ret;

		_gnutls_buffer_init(&str);

		ret = _gnutls_buffer_append_data(&str, t->input, strlen(t->input));

		if (ret < 0)

			fail("_gnutls_buffer_append_str: %s\n", gnutls_strerror(ret));

		ret = _gnutls_buffer_unescape(&str);

		if (ret < 0)

			fail("_gnutls_buffer_unescape: %s\n", gnutls_strerror(ret));

		ret = _gnutls_buffer_append_data(&str, "", 1);

		if (ret < 0)

			fail("_gnutls_buffer_append_data: %s\n", gnutls_strerror(ret));

		/* using malloc() instead of stack memory for better buffer overflow detection */

		gnutls_datum output;

		_gnutls_buffer_pop_datum(&str, &output, strlen(t->output) + 1);

		if (strcmp(t->output, (char *) output.data))

			fail("output differs [%d]: expected '%s', seen '%s'\n", it, t->output, (char *) output.data);

		_gnutls_buffer_clear(&str);

	}

}