lua

commit 20a48a818f4084f1b6480e3ec846c219abaafd5b
parent c9e6ed1d9fdf3323599a59515e73ec794b7cb15a
Author: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date:   Fri, 27 Jun 1997 19:38:29 -0300

a file handle must be a userdata.

Diffstat:
M
iolib.c
 | 
2
+-

1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/iolib.c b/iolib.c
@@ -41,7 +41,7 @@ static void pushresult (int i)
 static FILE *getfile (char *name)
 {
   lua_Object f = lua_getglobal(name);
-  if (lua_tag(f) != lua_tagio)
+  if (!lua_isuserdata(f) || lua_tag(f) != lua_tagio)
     luaL_verror("global variable %s is not a file handle", name);
   return lua_getuserdata(f);
 }