fuzzer-json.c

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/*
   +----------------------------------------------------------------------+
   | Copyright (c) The PHP Group                                          |
   +----------------------------------------------------------------------+
   | This source file is subject to version 3.01 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
   | available through the world-wide-web at the following url:           |
   | https://www.php.net/license/3_01.txt                                 |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
   | Authors: Johannes Schlüter <johanes@php.net>                         |
   |          Stanislav Malyshev <stas@php.net>                           |
   +----------------------------------------------------------------------+
 */
 
#include "fuzzer.h"
 
#include "Zend/zend.h"
#include <main/php_config.h>
#include "main/php_main.h"
 
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
 
#include "fuzzer-sapi.h"
#include "ext/json/php_json_parser.h"
 
int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
 
    if (fuzzer_request_startup() == FAILURE){
        return 0;
    }
 
    char *data = malloc(Size + 1);
    memcpy(data, Data, Size);
    data[Size] = '\0';
 
    for (int option = 0; option <=1; ++option) {
        zval result;
        php_json_parser parser;
        php_json_parser_init(&parser, &result, data, Size, option, 10);
        if (php_json_yyparse(&parser) == SUCCESS) {
            zval_ptr_dtor(&result);
        }
    }
 
    php_request_shutdown(NULL);
 
    free(data);
    return 0;
}
 
int LLVMFuzzerInitialize(int *argc, char ***argv) {
    fuzzer_init_php(NULL);
 
    /* fuzzer_shutdown_php(); */
    return 0;
}