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93 lines
2.9 KiB
JavaScript
Executable File
93 lines
2.9 KiB
JavaScript
Executable File
/* -*- Mode: java; tab-width:8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is JavaScript Engine testing utilities.
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*
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* The Initial Developer of the Original Code is
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* Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2006
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s): Igor Bukanov
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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gTestfile = 'regress-339785.js';
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var summary = "scanner: memory exposure to scripts";
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var BUGNUMBER = 339785;
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var actual = '';
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var expect = '';
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printBugNumber(BUGNUMBER);
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START(summary);
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function evalXML(N)
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{
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var str = Array(N + 1).join('a'); // str is string of N a
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src = "var x = <xml>&"+str+";</xml>;";
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try {
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eval(src);
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return "Should have thrown unknown entity error";
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} catch (e) {
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return e.message;
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}
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return "Unexpected";
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}
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var N1 = 1;
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var must_be_good = evalXML(N1);
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expect = 'unknown XML entity a';
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actual = must_be_good;
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TEST(1, expect, actual);
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function testScanner()
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{
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for (var power = 2; power != 15; ++power) {
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var N2 = (1 << power) - 2;
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var can_be_bad = evalXML(N2);
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var diff = can_be_bad.length - must_be_good.length;
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if (diff != 0 && diff != N2 - N1) {
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return "Detected memory exposure at entity length of "+(N2+2);
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}
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}
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return "Ok";
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}
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expect = "Ok";
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// repeat test since test does not always fail
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for (var iTestScanner = 0; iTestScanner < 100; ++iTestScanner)
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{
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actual = testScanner();
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TEST(iTestScanner+1, expect, actual);
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}
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END();
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