not safe for persistent streams

diff --git a/ext/zlib/zlib_filter.c b/ext/zlib/zlib_filter.c
index e0fa2d4555d1db268551a4c05c3655bddcd39727..038fa7a481a47f77e66f00349323beb4ba9388ff 100644 (file)
--- a/ext/zlib/zlib_filter.c
+++ b/ext/zlib/zlib_filter.c
@@ -270,6 +270,11 @@ static php_stream_filter *php_zlib_filter_create(const char *filtername, zval *f
        php_zlib_filter_data *data;
        int status;
 
+       if (persistent) {
+               php_error_docref(NULL TSRMLS_CC, E_WARNING, "this filter is not safe to use with a persistent stream");
+               return NULL;
+       }
+
        /* Create this filter */
        data = ecalloc(1, sizeof(php_zlib_filter_data));
 
@@ -356,7 +361,7 @@ static php_stream_filter *php_zlib_filter_create(const char *filtername, zval *f
                                case IS_DOUBLE:
                                case IS_LONG:
                                        tmpzval = &filterparams;
- factory_setlevel:
+factory_setlevel:
                                        /* Set compression level within reason (-1 == default, 0 == none, 1-9 == least to most compression */
                                        SEPARATE_ZVAL(tmpzval);
                                        convert_to_long_ex(tmpzval);