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 | Authors: Stanislav Malyshev <stas@php.net> |
14 +----------------------------------------------------------------------+
15 */
16
17
18 #include "zend.h"
19 #include "fuzzer.h"
20 #include "fuzzer-sapi.h"
21 #include "ext/mbstring/mbstring.h"
22
LLVMFuzzerTestOneInput(const uint8_t * Data,size_t Size)23 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
24 const uint8_t *Comma1 = memchr(Data, ',', Size);
25 if (!Comma1) {
26 return 0;
27 }
28
29 size_t ToEncodingNameLen = Comma1 - Data;
30 char *ToEncodingName = estrndup((char *) Data, ToEncodingNameLen);
31 Data = Comma1 + 1;
32 Size -= ToEncodingNameLen + 1;
33
34 const uint8_t *Comma2 = memchr(Data, ',', Size);
35 if (!Comma2) {
36 efree(ToEncodingName);
37 return 0;
38 }
39
40 size_t FromEncodingNameLen = Comma2 - Data;
41 char *FromEncodingName = estrndup((char *) Data, FromEncodingNameLen);
42 Data = Comma2 + 1;
43 Size -= FromEncodingNameLen + 1;
44
45 const mbfl_encoding *ToEncoding = mbfl_name2encoding(ToEncodingName);
46 const mbfl_encoding *FromEncoding = mbfl_name2encoding(FromEncodingName);
47
48 if (!ToEncoding || !FromEncoding || fuzzer_request_startup() == FAILURE) {
49 efree(ToEncodingName);
50 efree(FromEncodingName);
51 return 0;
52 }
53
54 zend_string *Result = php_mb_convert_encoding_ex((char *) Data, Size, ToEncoding, FromEncoding);
55 zend_string_release(Result);
56 efree(ToEncodingName);
57 efree(FromEncodingName);
58
59 fuzzer_request_shutdown();
60 return 0;
61 }
62
LLVMFuzzerInitialize(int * argc,char *** argv)63 int LLVMFuzzerInitialize(int *argc, char ***argv) {
64 fuzzer_init_php(NULL);
65 return 0;
66 }
67
