oss-fuzz/projects/haproxy/fuzz_cfg_parser.c

/*
# Copyright 2020 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
################################################################################
*/
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>

int
LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
{
    if (size < 50)
        return 0;

	char filename[256];
	sprintf(filename, "/tmp/libfuzzer.%d", getpid());

	FILE *fp = fopen(filename, "wb");
	if (!fp)
			return 0;
	fwrite(data, size, 1, fp);
	fclose(fp);

	// Fuzz the cfg parser
	readcfgfile(filename);

	unlink(filename);

	return 0;
}