samba-mirror/lib/fuzzing/fuzz_tiniparser.c

/*
   Fuzzing for trivial smb.conf parsing code.
   Copyright (C) Michael Hanselmann 2019

   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; either version 3 of the License, or
   (at your option) any later version.

   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, see <http://www.gnu.org/licenses/>.
*/

#include "includes.h"
#include "fuzzing.h"
#include "lib/util/tiniparser.h"

int LLVMFuzzerInitialize(int *argc, char ***argv)
{
	return 0;
}

int LLVMFuzzerTestOneInput(uint8_t *buf, size_t len)
{
	FILE *fp = NULL;
	struct tiniparser_dictionary *d = NULL;

	if (len == 0) {
		/*
		 * Otherwise fmemopen() will return null and set errno
		 * to EINVAL
		 */
		return 0;
	}

	fp = fmemopen(buf, len, "r");

	d = tiniparser_load_stream(fp);
	if (d != NULL) {
		tiniparser_freedict(d);
	}

	fclose(fp);

	return 0;
}