Home » Text » Text_Wiki_Mediawiki » Bug #6664

[2006-02-02 11:02 UTC] i-am at wykis dot com

Description:
------------
I get Segmentation Fault error when parsing some text using Text_MediaWiki.

Also, i modified Text/Wiki/MediaWiki.php by modifying
'Prefilter',
'Delimiter',
// 'Plugin',

Into

'Prefilter',
'Delimiter',
'Code', // << Here!
// 'Plugin',

Test script:
---------------
BBCode.txt: http://hashphp.org/pastebin.php?pid=6137

<?php
require_once("Pear.php");
require_once("Text/Wiki/Mediawiki.php");

$text=file_get_contents("BBCode.txt");

$pp=new Text_Wiki_Mediawiki();
$tt=$pp->transform($text,"xhtml");
return $tt;
?>

Expected result:
----------------
Parsed BBCode.txt using MediaWiki

Actual result:
--------------
I backtraced it to using "php4 script.php" and it simply returns "Segmentation fault".
The sample script is different from my actual script but returns the same error.

I get the same error with few other scripts that have <code tag as well as { , [ and other characters that might cause it to crash.

I am using shared hosting ( with ssh access at least ) where i could find some errors.

Here's what i got with gdb tracing, nothing much though :
"
Starting program: /usr/local/bin/php4 engine.php
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...[New Thread 1024 (LWP 31649)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1024 (LWP 31649)]
0x0809e3f5 in pcre_dfa_exec ()
"

[2006-02-02 12:22 UTC] i-am at wykis dot com

This code also gives the same error when using Text_MediaWiki:
{|
| title || link || description || category || guid || pubDate
|-
| ID theft 'costs UK £1.7bn a year' || http://news.bbc.co.uk/go/rss/-/1/hi/uk_politics/4672622.stm || Identity fraud is costing the UK an estimated £1.7bn every year, Home Office Minister Andy Burnham says. || Politics || http://news.bbc.co.uk/1/hi/uk_politics/4672622.stm || Thu, 02 Feb 2006 10:33:49 GMT
|-
| Microsoft opens up censored blogs || http://news.bbc.co.uk/go/rss/-/1/hi/technology/4671284.stm || Microsoft is changing the way it reacts to calls from governments to censor personal journals or blogs. || Technology || http://news.bbc.co.uk/1/hi/technology/4671284.stm || Thu, 02 Feb 2006 10:43:30 GMT
|-
| Children 'can access mobile porn' || http://news.bbc.co.uk/go/rss/-/1/hi/uk/4671334.stm || Children can gain access to internet porn via their mobile phones, a consumer
group warns. || UK || http://news.bbc.co.uk/1/hi/uk/4671334.stm || Thu, 02 Feb 2006 00:45:40 GMT
|-
| Action on mass-marketed scams || http://news.bbc.co.uk/go/rss/-/1/hi/business/4669670.stm || The Office of Fair Trading warns about scams costing £1bn a year. || Business || http://news.bbc.co.uk/1/hi/business/4669670.stm || Wed, 01 Feb 2006 15:48:02 GMT
|-
| ID theft 'contained' says study || http://news.bbc.co.uk/go/rss/-/1/hi/technology/4670316.stm || Identity theft is a "contained" problem that cannot be blamed on the net, finds research || Technology || http://news.bbc.co.uk/1/hi/technology/4670316.stm || Wed, 01 Feb 2006 13:53:43 GMT
|-
| New bid to tackle spyware || http://news.bbc.co.uk/go/rss/-/1/hi/technology/4669304.stm || Five big security firms band together in a bid to tackle growing problem of spyware. || Technology || http://news.bbc.co.uk/1/hi/technology/4669304.stm || Wed, 01 Feb 2006 11:34:54 GMT
|-
| Google shares fall on Wall Street || http://news.bbc.co.uk/go/rss/-/1/hi/business/4670632.stm || Internet firm Google sees shares drop 7% after profits miss Wall Street targets. || Business || http://news.bbc.co.uk/1/hi/business/4670632.stm || Wed, 01 Feb 2006 22:18:17 GMT
|-
| Lords defeat terror internet plan || http://news.bbc.co.uk/go/rss/-/1/hi/uk_politics/4671566.stm || Plans for new anti-terrorism controls on websites lead to a government defeat in the House of the Lords. || Politics || http://news.bbc.co.uk/1/hi/uk_politics/4671566.stm || Wed, 01 Feb 2006 17:48:14 GMT
|-
| Deal places limits on .com fees || http://news.bbc.co.uk/go/rss/-/1/hi/technology/4664906.stm || The net oversight body proposes to limit what the domain name giant, Verisign, can charge for .com domains. || Technology || http://news.bbc.co.uk/1/hi/technology/4664906.stm || Tue, 31 Jan 2006 09:37:17 GMT
|-
| Warner Bros to sell movies on net || http://news.bbc.co.uk/go/rss/-/1/hi/entertainment/4665438.stm || Films such as Batman Begins will be made available legally over the internet via peer-to-peer networks. || Entertainment || http://news.bbc.co.uk/1/hi/entertainment/4665438.stm || Tue, 31 Jan 2006 11:55:51 GMT
|-
| Actor Baker to be voice of text || http://news.bbc.co.uk/go/rss/-/1/hi/entertainment/4665254.stm || Former Doctor Who Tom Baker is lending his voice to a service which transfers text messages to landlines. || Entertainment || http://news.bbc.co.uk/1/hi/entertainment/4665254.stm || Tue, 31 Jan 2006 11:41:22 GMT
|-
| UK court to unmask 'file-sharers' || http://news.bbc.co.uk/go/rss/-/1/hi/technology/4663388.stm || Ten UK internet providers are ordered to provide details of 150 customers accused of illegally sharing software. || Technology || http://news.bbc.co.uk/1/hi/technology/4663388.stm || Mon, 30 Jan 2006 17:17:45 GMT
|-
| Dell to hire 50% more in India || http://news.bbc.co.uk/go/rss/-/1/hi/world/south_asia/4663484.stm || US computer giant Dell will increase its workforce in India by 50% in the next two years, says Dell's president and CEO. || South Asia || http://news.bbc.co.uk/1/hi/world/south_asia/4663484.stm || Mon, 30 Jan 2006 17:52:40 GMT
|-
| Internet firms 'bowed to Beijing' || http://news.bbc.co.uk/go/rss/-/1/hi/world/americas/4672518.stm || US congressmen condemn IT firms including Microsoft and Google for helping China censor the internet. || Americas || http://news.bbc.co.uk/1/hi/world/americas/4672518.stm || Thu, 02 Feb 2006 01:24:49 GMT
|-
| Washington steps in on Blackberry || http://news.bbc.co.uk/go/rss/-/1/hi/business/4672844.stm || The US government says its need for the Blackberry e-mail service means a threatened shutdown should not go ahead. || Business || http://news.bbc.co.uk/1/hi/business/4672844.stm || Thu, 02 Feb 2006 08:26:41 GMT
|-
| Mobiles 'don't raise cancer risk' || http://news.bbc.co.uk/go/rss/-/1/hi/health/4628914.stm || There is no link between mobile phone use and brain tumours, researchers say after a large-scale study. || Health || http://news.bbc.co.uk/1/hi/health/4628914.stm || Fri, 20 Jan 2006 08:30:06 GMT
|-
| File-sharing 'not cut by courts' || http://news.bbc.co.uk/go/rss/-/1/hi/entertainment/4627368.stm || Court action against music file-sharers has not reduced illegal song-swapping, an industry report says. || Entertainment || http://news.bbc.co.uk/1/hi/entertainment/4627368.stm || Fri, 20 Jan 2006 14:31:53 GMT
|-
| Dead or Alive 4 tops UK charts || http://news.bbc.co.uk/go/rss/-/1/hi/technology/2207229.stm || Catch up with the latest news from the world of video gaming. || Technology || http://news.bbc.co.uk/1/hi/technology/2207229.stm || Tue, 31 Jan 2006 14:36:50 GMT
|-
| Handhelds mix plankton and play || http://news.bbc.co.uk/go/rss/-/1/hi/technology/4596450.stm || Reviewer Neil McGreevey rounds up some of the latest, and oddest, games on handhelds. || Technology || http://news.bbc.co.uk/1/hi/technology/4596450.stm || Fri, 13 Jan 2006 13:27:30 GMT
|-
}