8079841: Buffer underflow with empty zip entry names
Summary: check for zero-length entry name before accessing "last" byte
Reviewed-by: sherman, martin
/*
* Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* NASHORN-768 : Implement cross context property/function access and browser JSObject access by JSObject dynalink linker
*
* @test
* @option -scripting
* @run
*/
// create another nashorn engine
var m = new javax.script.ScriptEngineManager();
var engine = m.getEngineByName("nashorn");
// our global var 'id'
var id = "global-id";
engine.eval(<<CODE
// code evaluated in engine
// engine code's id
var id = "engine-global-id";
// global object
var obj = {
foo: 42,
bar: function(x) {
if (id != "engine-global-id") {
throw "id != 'engine-global-id'";
}
// check this.foo is accessible
if (this.foo != 42) {
throw "this.foo != 42";
}
return x;
}
};
// global function
function func(callback) {
var res = callback(id);
if (res != id) {
fail("result of callback is wrong");
}
}
CODE);
var obj = engine.get("obj");
if (obj.bar("hello") != "hello") {
fail("obj.bar('hello') return value is wrong");
}
if (obj.foo != 42) {
fail("obj.foo != 42");
}
var func = engine.get("func");
var inside_f = false;
function f(arg) {
inside_f = true;
if (id != "global-id") {
fail("id != 'global-id'");
}
return arg;
}
func(f);
if (! inside_f) {
fail("function 'f' was not called");
}