/*  Fluent Bit

 *  ==========

 *  Copyright (C) 2019-2021 The Fluent Bit Authors

 *  Copyright (C) 2015-2018 Treasure Data 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 <stdint.h>

#include <string.h>

#include <stdlib.h>

#include <fluent-bit/flb_parser.h>

#include <fluent-bit/flb_slist.h>

#include "flb_fuzz_header.h"

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)

{

    /* Set fuzzer-malloc chance of failure */

    flb_malloc_p = 0;

    flb_malloc_mod = 25000;

    /* Limit the size of the config files to 32KB. */

    if (size > 32768) {

        return 0;

    }

    /* Write the config file to a location we know OSS-Fuzz has */

    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);

    /* Now parse a random config file */

    struct flb_config *config = NULL;

    config = flb_config_init();

    flb_parser_conf_file(filename, config);

    flb_parser_exit(config);

    flb_config_exit(config);

    /* Cleanup written config file */

    unlink(filename);

    return 0;

}