[PATCH] 5.0 ISAPI cookie string free fix (#28929)

I believe that a bug was introduced with version 1.3 of php5isapi.c. The sapi_isapi_read_cookies() function used to return NULL when there were no cookies, but was changed to return "" instead. That's fine, but then HttpExtensionProc() attempts to free the non-ealloc'ed empty string and dies with an Access Violation. I believe this is the issue people are seeing in bug #28929. I've attached a patch for the PHP_5_0 branch that has sapi_isapi_read_cookes() return an empty_string constant, and uses STR_FREE to call efree() to protect the case of the empty_string value. For HEAD this patch would be easier becuase of the recent removal of empty_string - just return STR_EMPTY_ALLOC() and keep the efree() as is. Michael Sisolak msisolak@yahoo.com __________________________________ Do you Yahoo!? New and Improved Yahoo! Mail - Send 10MB messages! http://promotions.yahoo.com/new_mail