From 6e3ef7fe09c5df6d353018f4ec2d2a76846b28c2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=BA=91=E9=A3=8E?= <cloudwu@gmail.com>
Date: Mon, 30 Dec 2013 19:48:30 +0800
Subject: [PATCH] bugfix: Issue #60

---
 lualib-src/lua-seri.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lualib-src/lua-seri.c b/lualib-src/lua-seri.c
index 23413cf5..e02c0421 100644
--- a/lualib-src/lua-seri.c
+++ b/lualib-src/lua-seri.c
@@ -447,6 +447,9 @@ static void
 _get_buffer(lua_State *L, struct read_block *rb, int len) {
 	char tmp[len];
 	char * p = rb_read(rb,tmp,len);
+	if (p == NULL) {
+		_invalid_stream(L,rb);
+	}
 	lua_pushlstring(L,p,len);
 }