Greetings list,
I've modified fopen_wrappers.c to add some custom security checks for
our environment.
Part of the check requires obtaining the DocumentRoot.
The modification begins at line 115 where the DocumentRoot is found:
// Document root from Zend (pointer to pointer)
zval **document_root = NULL;
// Make sure DOCUMENT_ROOT is accessible from the global vars
if (!PG(http_globals)[TRACK_VARS_SERVER] ||
zend_hash_find(PG(http_globals)[TRACK_VARS_SERVER]->value.ht,
"DOCUMENT_ROOT", sizeof("DOCUMENT_ROOT"), (void **) &document_root) ==
FAILURE) {
// Unable to find DOCUMENT_ROOT
php_error_docref(NULL TSRMLS_CC, E_WARNING, "fopen_wrapper_patch:
DOCUMENT_ROOT variable is not set, cannot determine document root.");
// Can't check the document root - fail
return -1;
}
The above code has been works fine in PHP 5.2.6. In PHP 5.2.10 it
works except when an .htaccess is defined with the following:
<--BEGIN SNIP .htaccess-->
php_value error_log '/home/st/stu/studio1.com.au/www/logs/php_err.log'
<--END SNIP-->
The above .htaccess works as expected in PHP 5.2.6 when looking up the
DOCUMENT_ROOT.
Is there another way to obtain the DOCUMENT_ROOT at this point in the
code or has something been introduced into the code since 5.2.6 that
is causing a wider issue that needs to be fixed?
Your help would be much appreciated.
Thanks
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