PHP  
 PHP_HEAD
downloads | QA | documentation | faq | getting help | mailing lists | reporting bugs | php.net sites | links | my php.net 
 

Valgrind Report for sapi/phpdbg/tests/phpdbg_get_executable_stream_wrapper.phpt ('Getting executable lines from custom wrappers')

Script

1: <?php
2:
3:
/**
4:  * This example demonstrates how phpdbg_get_executable() behaves differently
5:  * when passed the 'files' option vs without, in the face of some mild abuse
6:  * of stream wrappers.
7:  */
8:
9: /**
10:  * First, we define a stream wrapper that simply maps to a real file on disk.
11:  */
12:
final class StreamWrapper
13:
{
14:     public function 
stream_open(
15:         
string $path,
16:         
string $mode,
17:         
int $options 0,
18:         
string &$openedPath null
19:     
) : bool {
20:         if (
$mode[0] !== 'r') {
21:             return 
false;
22:         }
23:
24:         list(
$scheme$path) = explode('://'$path2);
25:
26:         
$stream = \fopen($path$mode);
27:
28:         if (
$stream === false) {
29:             return 
false;
30:         }
31:
32:         
$this->stream $stream;
33:
34:         
/**
35:          * The $openedPath reference variable is assigned, indicating the
36:          * *actual* path that was opened. This affects the behaviour of
37:          * constants like __FILE__.
38:          */
39:         
$openedPath = \realpath($path);
40:
41:         return 
true;
42:     }
43:
44:     public function 
stream_read(int $count) : string { return \fread($this->stream$count); }
45:     public function 
stream_close() : bool { return \fclose($this->stream); }
46:     public function 
stream_eof() : bool { return \feof($this->stream); }
47:     public function 
stream_stat() { return \fstat($this->stream); }
48:
49:     private 
$stream false;
50: }
51:
52:
stream_wrapper_register('wrapper'StreamWrapper::class);
53:
54:
/**
55:  * Next, we include a PHP file that contains executable lines, via the stream
56:  * wrapper.
57:  */
58:
$filename __DIR__ '/phpdbg_get_executable_stream_wrapper.inc';
59: require 
'wrapper://' $filename;
60:
61:
/**
62:  * If we call phpdbg_get_executable() and pass no options, the realpath of the
63:  * included file is present in the array, but indicates no executable lines.
64:  */
65:
$x phpdbg_get_executable();
66:
67:
// We expect [5 => 0], but got an empty array ...
68:
var_dump($x[$filename]);
69:
70:
?>
71:

Report

==18170== Invalid read of size 1
==18170==    at 0x10A6449: zend_string_release (zend_string.h:284)
==18170==    by 0x10A6449: destroy_op_array (zend_opcode.c:402)
==18170==    by 0x133C0FB: php_phpdbg_destroy_file_source (phpdbg.c:131)
==18170==    by 0x110226C: zend_hash_destroy (zend_hash.c:1296)
==18170==    by 0x1345422: main (phpdbg.c:2155)
==18170==  Address 0x14f18b05 is 5 bytes inside a block of size 40 free'd
==18170==    at 0x4C28BD4: free (vg_replace_malloc.c:529)
==18170==    by 0x1389750: phpdbg_watch_efree (phpdbg_watch.c:1170)
==18170==    by 0x106173D: _efree (zend_alloc.c:2499)
==18170==    by 0x114A26B: _str_dtor (zend_string.c:55)
==18170==    by 0x110226C: zend_hash_destroy (zend_hash.c:1296)
==18170==    by 0x114CB54: zend_interned_strings_deactivate (zend_string.c:265)
==18170==    by 0xFB6F7F: php_request_shutdown (main.c:1788)
==18170==    by 0x1344DBD: main (phpdbg.c:2093)
==18170==  Block was alloc'd at
==18170==    at 0x4C291FA: malloc (vg_replace_malloc.c:298)
==18170==    by 0x10654A8: __zend_malloc (zend_alloc.c:2884)
==18170==    by 0x106141A: _emalloc (zend_alloc.c:2484)
==18170==    by 0x1027244: zend_string_alloc (zend_string.h:136)
==18170==    by 0x1027244: zend_string_init (zend_string.h:172)
==18170==    by 0x1027244: lex_scan (zend_language_scanner.l:1869)
==18170==    by 0x106D699: zendlex (zend_compile.c:1708)
==18170==    by 0x100D1B7: zendparse (zend_language_parser.c:4912)
==18170==    by 0x101909B: zend_compile (zend_language_scanner.l:585)
==18170==    by 0x1019477: compile_file (zend_language_scanner.l:635)
==18170==    by 0xB82035: phar_compile_file (phar.c:3339)
==18170==    by 0x136E705: phpdbg_compile_file (phpdbg_list.c:274)
==18170==    by 0x136EC46: phpdbg_init_compile_file (phpdbg_list.c:317)
==18170==    by 0x135206E: phpdbg_compile (phpdbg_prompt.c:600)
==18170== 
==18170== Invalid read of size 1
==18170==    at 0x10A6449: zend_string_release (zend_string.h:284)
==18170==    by 0x10A6449: destroy_op_array (zend_opcode.c:402)
==18170==    by 0x133CB5F: zm_shutdown_phpdbg (phpdbg.c:268)
==18170==    by 0x10E1C75: module_destructor (zend_API.c:2496)
==18170==    by 0x10CBCAC: module_destructor_zval (zend.c:697)
==18170==    by 0x1104D01: _zend_hash_del_el_ex (zend_hash.c:1058)
==18170==    by 0x1104D01: _zend_hash_del_el (zend_hash.c:1081)
==18170==    by 0x1104D01: zend_hash_graceful_reverse_destroy (zend_hash.c:1537)
==18170==    by 0x10DD327: zend_destroy_modules (zend_API.c:1940)
==18170==    by 0x10CC51C: zend_shutdown (zend.c:923)
==18170==    by 0xFB8928: php_module_shutdown (main.c:2328)
==18170==    by 0x134549A: main (phpdbg.c:2158)
==18170==  Address 0x15972d25 is 5 bytes inside a block of size 40 free'd
==18170==    at 0x4C28BD4: free (vg_replace_malloc.c:529)
==18170==    by 0x1389750: phpdbg_watch_efree (phpdbg_watch.c:1170)
==18170==    by 0x106173D: _efree (zend_alloc.c:2499)
==18170==    by 0x114A26B: _str_dtor (zend_string.c:55)
==18170==    by 0x110226C: zend_hash_destroy (zend_hash.c:1296)
==18170==    by 0x114CB54: zend_interned_strings_deactivate (zend_string.c:265)
==18170==    by 0xFB6F7F: php_request_shutdown (main.c:1788)
==18170==    by 0x1344DBD: main (phpdbg.c:2093)
==18170==  Block was alloc'd at
==18170==    at 0x4C291FA: malloc (vg_replace_malloc.c:298)
==18170==    by 0x10654A8: __zend_malloc (zend_alloc.c:2884)
==18170==    by 0x106141A: _emalloc (zend_alloc.c:2484)
==18170==    by 0x1027244: zend_string_alloc (zend_string.h:136)
==18170==    by 0x1027244: zend_string_init (zend_string.h:172)
==18170==    by 0x1027244: lex_scan (zend_language_scanner.l:1869)
==18170==    by 0x106D699: zendlex (zend_compile.c:1708)
==18170==    by 0x100D1B7: zendparse (zend_language_parser.c:4912)
==18170==    by 0x101909B: zend_compile (zend_language_scanner.l:585)
==18170==    by 0x1019477: compile_file (zend_language_scanner.l:635)
==18170==    by 0xB82035: phar_compile_file (phar.c:3339)
==18170==    by 0x136E705: phpdbg_compile_file (phpdbg_list.c:274)
==18170==    by 0x136EC46: phpdbg_init_compile_file (phpdbg_list.c:317)
==18170==    by 0x135206E: phpdbg_compile (phpdbg_prompt.c:600)
==18170== 
==18170== Invalid read of size 4
==18170==    at 0xA0EA562: kpufhndl0 (in /u01/app/oracle/product/11.2.0/xe/lib/libclntsh.so.11.1)
==18170==    by 0xA0F0952: kpufhndl (in /u01/app/oracle/product/11.2.0/xe/lib/libclntsh.so.11.1)
==18170==    by 0x9FBA5C4: OCIHandleFree (in /u01/app/oracle/product/11.2.0/xe/lib/libclntsh.so.11.1)
==18170==    by 0xAEDBDC: zm_shutdown_pdo_oci (pdo_oci.c:140)
==18170==    by 0x10E1C75: module_destructor (zend_API.c:2496)
==18170==    by 0x10CBCAC: module_destructor_zval (zend.c:697)
==18170==    by 0x1104D01: _zend_hash_del_el_ex (zend_hash.c:1058)
==18170==    by 0x1104D01: _zend_hash_del_el (zend_hash.c:1081)
==18170==    by 0x1104D01: zend_hash_graceful_reverse_destroy (zend_hash.c:1537)
==18170==    by 0x10DD327: zend_destroy_modules (zend_API.c:1940)
==18170==    by 0x10CC51C: zend_shutdown (zend.c:923)
==18170==    by 0xFB8928: php_module_shutdown (main.c:2328)
==18170==    by 0x134549A: main (phpdbg.c:2158)
==18170==  Address 0x14ec2f00 is 0 bytes inside a block of size 43,632 free'd
==18170==    at 0x4C28BD4: free (vg_replace_malloc.c:529)
==18170==    by 0xA3E0CDE: ssMemFree (in /u01/app/oracle/product/11.2.0/xe/lib/libclntsh.so.11.1)
==18170==    by 0xA4A6ED9: sktsfFree (in /u01/app/oracle/product/11.2.0/xe/lib/libclntsh.so.11.1)
==18170==    by 0xAE36F6B: kpummefree (in /u01/app/oracle/product/11.2.0/xe/lib/libclntsh.so.11.1)
==18170==    by 0xA0F06E6: kpufhndl0 (in /u01/app/oracle/product/11.2.0/xe/lib/libclntsh.so.11.1)
==18170==    by 0xA0F0952: kpufhndl (in /u01/app/oracle/product/11.2.0/xe/lib/libclntsh.so.11.1)
==18170==    by 0x9FBA5C4: OCIHandleFree (in /u01/app/oracle/product/11.2.0/xe/lib/libclntsh.so.11.1)
==18170==    by 0xAEDBDC: zm_shutdown_pdo_oci (pdo_oci.c:140)
==18170==    by 0x10E1C75: module_destructor (zend_API.c:2496)
==18170==    by 0x10CBCAC: module_destructor_zval (zend.c:697)
==18170==    by 0x1104D01: _zend_hash_del_el_ex (zend_hash.c:1058)
==18170==    by 0x1104D01: _zend_hash_del_el (zend_hash.c:1081)
==18170==    by 0x1104D01: zend_hash_graceful_reverse_destroy (zend_hash.c:1537)
==18170==    by 0x10DD327: zend_destroy_modules (zend_API.c:1940)
==18170==  Block was alloc'd at
==18170==    at 0x4C291FA: malloc (vg_replace_malloc.c:298)
==18170==    by 0xA3E0CEC: ssMemMalloc (in /u01/app/oracle/product/11.2.0/xe/lib/libclntsh.so.11.1)
==18170==    by 0xA4A6EEB: sktsfMalloc (in /u01/app/oracle/product/11.2.0/xe/lib/libclntsh.so.11.1)
==18170==    by 0xAE36EFD: kpummealloc (in /u01/app/oracle/product/11.2.0/xe/lib/libclntsh.so.11.1)
==18170==    by 0xA0FA030: kpuinit0 (in /u01/app/oracle/product/11.2.0/xe/lib/libclntsh.so.11.1)
==18170==    by 0xA0F82FC: kpuenvcr (in /u01/app/oracle/product/11.2.0/xe/lib/libclntsh.so.11.1)
==18170==    by 0x9FBA4E9: OCIEnvCreate (in /u01/app/oracle/product/11.2.0/xe/lib/libclntsh.so.11.1)
==18170==    by 0xAEDB50: zm_activate_pdo_oci (pdo_oci.c:118)
==18170==    by 0x10E1E32: zend_activate_modules (zend_API.c:2532)
==18170==    by 0xFB6773: php_request_startup (main.c:1666)
==18170==    by 0x1343A2B: main (phpdbg.c:1806)
==18170== 

 

Generated at Sun, 12 Nov 2017 21:17:35 +0000 (6 days ago)

Copyright © 2005-2017 The PHP Group
All rights reserved.