From: Stanislav Malyshev <stas@php.net>
Date: Wed, 12 Sep 2007 21:21:18 +0000 (+0000)
Subject: fix crash if stream is empty and reader function sets buffer as null
X-Git-Tag: php-5.2.5RC1~167
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=1f45d49a0c45c631a9e76ec20fcff492fa78f59b;p=php

fix crash if stream is empty and reader function sets buffer as null
---

diff --git a/ext/pdo/pdo_stmt.c b/ext/pdo/pdo_stmt.c
index ca9120550b..ef86c7e1ac 100755
--- a/ext/pdo/pdo_stmt.c
+++ b/ext/pdo/pdo_stmt.c
@@ -569,7 +569,11 @@ static inline void fetch_value(pdo_stmt_t *stmt, zval *dest, int colno, int *typ
 					char *buf = NULL;
 					size_t len;
 					len = php_stream_copy_to_mem((php_stream*)value, &buf, PHP_STREAM_COPY_ALL, 0);
-					ZVAL_STRINGL(dest, buf, len, 0);
+					if(buf == NULL) {
+						ZVAL_EMPTY_STRING(dest);
+					} else {
+						ZVAL_STRINGL(dest, buf, len, 0);
+					}
 					php_stream_close((php_stream*)value);
 				} else {
 					php_stream_to_zval((php_stream*)value, dest);