81 lines
2.1 KiB
C
81 lines
2.1 KiB
C
/*
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+----------------------------------------------------------------------+
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| Copyright © The PHP Group and Contributors. |
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+----------------------------------------------------------------------+
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| This source file is subject to the Modified BSD License that is |
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| bundled with this package in the file LICENSE, and is available |
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| through the World Wide Web at <https://www.php.net/license/>. |
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| |
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| SPDX-License-Identifier: BSD-3-Clause |
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+----------------------------------------------------------------------+
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*/
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#include "fuzzer.h"
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#include "Zend/zend.h"
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#include <main/php_config.h>
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#include "main/php_main.h"
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include "fuzzer-sapi.h"
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#include "ext/standard/php_var.h"
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int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t FullSize) {
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const uint8_t *Start = memchr(Data, '|', FullSize);
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if (!Start) {
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return 0;
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}
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++Start;
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if (fuzzer_request_startup() == FAILURE) {
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return 0;
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}
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size_t Size = (Data + FullSize) - Start;
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unsigned char *orig_data = malloc(Size+1);
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memcpy(orig_data, Start, Size);
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orig_data[Size] = '\0';
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fuzzer_setup_dummy_frame();
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{
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const unsigned char *data = orig_data;
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zval result;
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ZVAL_UNDEF(&result);
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php_unserialize_data_t var_hash;
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PHP_VAR_UNSERIALIZE_INIT(var_hash);
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php_var_unserialize(&result, (const unsigned char **) &data, data + Size, &var_hash);
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PHP_VAR_UNSERIALIZE_DESTROY(var_hash);
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if (Z_TYPE(result) == IS_OBJECT
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&& zend_string_equals_literal(Z_OBJCE(result)->name, "HashContext")) {
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zval args[2];
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ZVAL_COPY_VALUE(&args[0], &result);
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ZVAL_STRINGL(&args[1], (char *) Data, (Start - Data) - 1);
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fuzzer_call_php_func_zval("hash_update", 2, args);
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zval_ptr_dtor(&args[1]);
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fuzzer_call_php_func_zval("hash_final", 1, args);
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}
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zval_ptr_dtor(&result);
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}
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free(orig_data);
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fuzzer_request_shutdown();
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return 0;
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}
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int LLVMFuzzerInitialize(int *argc, char ***argv) {
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fuzzer_init_php(NULL);
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/* fuzzer_shutdown_php(); */
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return 0;
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}
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