/*
 * librdkafka - Apache Kafka C library
 *
 * Copyright (c) 2020-2022, Magnus Edenhill
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */


/**
 * Fuzzer test case for the builtin regexp engine in src/regexp.c
 *
 * librdkafka must be built with --disable-regex-ext
 */

#include "rd.h"

#include <stdlib.h>
#include <string.h>
#include <stdio.h>

#include "regexp.h"

int LLVMFuzzerTestOneInput(uint8_t *data, size_t size) {
        /* wrap random data in a null-terminated string */
        char *null_terminated = malloc(size + 1);
        memcpy(null_terminated, data, size);
        null_terminated[size] = '\0';

        const char *error;
        Reprog *p = re_regcomp(null_terminated, 0, &error);
        if (p != NULL) {
                re_regfree(p);
        }

        /* cleanup */
        free(null_terminated);

        return 0;
}

#if WITH_MAIN
#include "helpers.h"

int main(int argc, char **argv) {
        int i;
        for (i = 1; i < argc; i++) {
                size_t size;
                uint8_t *buf = read_file(argv[i], &size);
                LLVMFuzzerTestOneInput(buf, size);
                free(buf);
        }
}
#endif