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[2015-02-12 04:31 UTC] sergey dot prokhorov at gmail dot com
Description: ------------ PHP 5.5.21 Non Thread Safe Steps to reproduce: 1. Add FastCgiModule handler with php-cgi.exe executable on IIS site 2. Put script from next section to this site 3. Kill all FastCGI child processes: restart IIS App pool used by site or just exec taskkill /f /im php-cgi.exe 4. Run script twice, ensure that both requests handled by the same process php-cgi.exe. Result will be ex described in Actual result - second request will read value first one. This bug was made during fix https://bugs.php.net/bug.php?id=66265 and affects only newly created variables. Test script: --------------- <?php $originalValue = getenv('MY_ENV_VAR'); var_dump($originalValue); $res = putenv('MY_ENV_VAR=SOME_VALUE'); var_dump($res); $newValue = getenv('MY_ENV_VAR'); var_dump($newValue); Expected result: ---------------- First request output: bool(false) bool(true) string(10) "SOME_VALUE" Second request output: bool(false) bool(true) string(10) "SOME_VALUE" Actual result: -------------- First request output: bool(false) bool(true) string(10) "SOME_VALUE" Second request output: string(10) "SOME_VALUE" bool(true) string(10) "SOME_VALUE" Patchesbug69033_2.patch (last revision 2015-02-12 11:19 UTC by ab@php.net)bug69033_1.patch (last revision 2015-02-12 09:22 UTC by ab@php.net) Pull RequestsHistoryAllCommentsChangesGit/SVN commits
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Last updated: Fri Oct 24 09:00:01 2025 UTC |
It seems I forgot to attach patch when submit this bug and I cannot attach it to private bug so I add it as comment: --- ext/standard/basic_functions.c +++ ext/standard/basic_functions.c @@ -3421,6 +3421,10 @@ zend_module_entry basic_functions_module = { /* {{{ */ #if defined(HAVE_PUTENV) static void php_putenv_destructor(putenv_entry *pe) /* {{{ */ { +# if !defined(ZTS) && defined(PHP_WIN32) + int key_len; + char *putenv_string; +#endif if (pe->previous_value) { #if _MSC_VER >= 1300 /* VS.Net has a bug in putenv() when setting a variable that @@ -3438,6 +3442,14 @@ static void php_putenv_destructor(putenv_entry *pe) /* {{{ */ unsetenv(pe->key); # elif defined(PHP_WIN32) SetEnvironmentVariable(pe->key, NULL); +# ifndef ZTS + key_len = strlen(pe->key); + putenv_string = (char *) emalloc(key_len + 2); + memcpy(putenv_string, pe->key, key_len); + memset(putenv_string + key_len, 0, 2); + putenv_string[key_len] = '='; + _putenv(putenv_string); +# endif # else char **env;Thanks for reporting, the issue confirmed. I've attached a slightly modified patch, but just posting it to this comment as well so you could check: ======= START ======= --- a/ext/standard/basic_functions.c +++ b/ext/standard/basic_functions.c @@ -3432,7 +3432,18 @@ static void php_putenv_destructor(putenv_entry *pe) /* {{{ */ # if HAVE_UNSETENV unsetenv(pe->key); # elif defined(PHP_WIN32) +# ifndef ZTS + int key_len = strlen(pe->key); + char *putenv_string = (char *) emalloc(key_len + 2); +# endif SetEnvironmentVariable(pe->key, NULL); +# ifndef ZTS + memcpy(putenv_string, pe->key, key_len); + putenv_string[key_len] = '='; + putenv_string[key_len + 1] = '\0'; + _putenv(putenv_string); + efree(putenv_string); +# endif # else char **env; ======= END ======= This should be applied ASAP. Thanks.@sergey actually there's a better way to do this, which also avoids additional memory overhead --- a/ext/standard/basic_functions.c +++ b/ext/standard/basic_functions.c @@ -3433,6 +3433,9 @@ static void php_putenv_destructor(putenv_entry *pe) /* {{{ */ unsetenv(pe->key); # elif defined(PHP_WIN32) SetEnvironmentVariable(pe->key, NULL); +# ifndef ZTS + _putenv_s(pe->key, ""); +# endif # else char **env;