1 /*
2 +----------------------------------------------------------------------+
3 | Copyright (c) The PHP Group |
4 +----------------------------------------------------------------------+
5 | This source file is subject to version 3.01 of the PHP license, |
6 | that is bundled with this package in the file LICENSE, and is |
7 | available through the world-wide-web at the following url: |
8 | https://www.php.net/license/3_01.txt |
9 | If you did not receive a copy of the PHP license and are unable to |
10 | obtain it through the world-wide-web, please send a note to |
11 | license@php.net so we can mail you a copy immediately. |
12 +----------------------------------------------------------------------+
13 */
14
15
16 #include "fuzzer.h"
17
18 #include "Zend/zend.h"
19 #include "main/php_config.h"
20 #include "main/php_main.h"
21
22 #include <stdio.h>
23 #include <stdint.h>
24 #include <stdlib.h>
25
26 #include "fuzzer-sapi.h"
27
28 #include "ext/standard/php_var.h"
29
LLVMFuzzerTestOneInput(const uint8_t * Data,size_t FullSize)30 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t FullSize) {
31 const uint8_t *Start = memchr(Data, '|', FullSize);
32 if (!Start) {
33 return 0;
34 }
35 ++Start;
36
37 size_t Size = (Data + FullSize) - Start;
38 unsigned char *orig_data = malloc(Size+1);
39 memcpy(orig_data, Start, Size);
40 orig_data[Size] = '\0';
41
42 if (fuzzer_request_startup() == FAILURE) {
43 return 0;
44 }
45
46 fuzzer_setup_dummy_frame();
47
48 {
49 const unsigned char *data = orig_data;
50 zval result;
51 ZVAL_UNDEF(&result);
52
53 php_unserialize_data_t var_hash;
54 PHP_VAR_UNSERIALIZE_INIT(var_hash);
55 php_var_unserialize(&result, (const unsigned char **) &data, data + Size, &var_hash);
56 PHP_VAR_UNSERIALIZE_DESTROY(var_hash);
57
58 if (Z_TYPE(result) == IS_OBJECT
59 && zend_string_equals_literal(Z_OBJCE(result)->name, "HashContext")) {
60 zval args[2];
61 ZVAL_COPY_VALUE(&args[0], &result);
62 ZVAL_STRINGL(&args[1], (char *) Data, (Start - Data) - 1);
63 fuzzer_call_php_func_zval("hash_update", 2, args);
64 zval_ptr_dtor(&args[1]);
65 fuzzer_call_php_func_zval("hash_final", 1, args);
66 }
67
68 zval_ptr_dtor(&result);
69 }
70
71 free(orig_data);
72
73 fuzzer_request_shutdown();
74 return 0;
75 }
76
LLVMFuzzerInitialize(int * argc,char *** argv)77 int LLVMFuzzerInitialize(int *argc, char ***argv) {
78 fuzzer_init_php(NULL);
79
80 /* fuzzer_shutdown_php(); */
81 return 0;
82 }
83
