a file handle must be a userdata.

1997-06-27 19:38:49 -03:00
parent c9e6ed1d9f
commit 20a48a818f
1 changed files with 1 additions and 1 deletions
--- 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);
 }