glib2.0/fuzzing/fuzz_resolver.c

74 lines
2.3 KiB
C
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/*
* Copyright 2021 Endless OS Foundation, LLC
*
* 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"
#include "gio/gnetworking.h"
#include "../gio/gthreadedresolver.h"
#include "../gio/gthreadedresolver-private.h"
static void
test_for_rrtype (const guint8 *data,
gsize data_len,
gint rrtype)
{
/* g_resolver_records_from_res_query() is only available on Unix */
#ifdef G_OS_UNIX
GList *record_list = NULL;
/* Data too long? */
if (data_len > G_MAXSSIZE)
return;
/* rrname is only used in error messages, so doesnt need to vary.
* herr is used similarly, so is just set to zero. */
record_list = g_resolver_records_from_res_query ("rrname",
rrtype,
data,
data_len,
0,
NULL);
g_list_free_full (record_list, (GDestroyNotify) g_variant_unref);
#endif /* G_OS_UNIX */
}
int
LLVMFuzzerTestOneInput (const unsigned char *data, size_t size)
{
const gint rrtypes_to_test[] =
{
/* See https://en.wikipedia.org/wiki/List_of_DNS_record_types */
33 /* SRV */,
15 /* MX */,
6 /* SOA */,
2 /* NS */,
16 /* TXT */,
999, /* not currently a valid rrtype, to test the unknown code path */
};
gsize i;
fuzz_set_logging_func ();
for (i = 0; i < G_N_ELEMENTS (rrtypes_to_test); i++)
test_for_rrtype (data, size, rrtypes_to_test[i]);
return 0;
}