glib/fuzzing/fuzz_uri_escape.c

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/*
* Copyright 2020 Endless OS Foundation, LLC
* Copyright 2020 Red Hat, Inc.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "fuzz.h"
static void
test_bytes (const guint8 *data,
gsize size)
{
GError *error = NULL;
GBytes *unescaped_bytes = NULL;
gchar *escaped_string = NULL;
if (size > G_MAXSSIZE)
return;
unescaped_bytes = g_uri_unescape_bytes ((const gchar *) data, (gssize) size, NULL, &error);
if (unescaped_bytes == NULL)
{
g_assert_nonnull (error);
g_clear_error (&error);
return;
}
escaped_string = g_uri_escape_bytes (g_bytes_get_data (unescaped_bytes, NULL),
g_bytes_get_size (unescaped_bytes),
NULL);
g_bytes_unref (unescaped_bytes);
if (escaped_string == NULL)
return;
g_free (escaped_string);
}
static void
test_string (const guint8 *data,
gsize size)
{
gchar *unescaped_string = NULL;
gchar *escaped_string = NULL;
unescaped_string = g_uri_unescape_segment ((const gchar *) data, (const gchar *) data + size, NULL);
if (unescaped_string == NULL)
return;
escaped_string = g_uri_escape_string (unescaped_string, NULL, TRUE);
g_free (unescaped_string);
if (escaped_string == NULL)
return;
g_free (escaped_string);
}
int
LLVMFuzzerTestOneInput (const unsigned char *data, size_t size)
{
fuzz_set_logging_func ();
/* Bytes form */
test_bytes (data, size);
/* String form (doesnt do %-decoding) */
test_string (data, size);
return 0;
}