#45996 [Com]: libxml2 2.7.1 causes breakage with character data in xml_parse()

From: Date: Fri, 24 Oct 2008 20:47:09 +0000
Subject: #45996 [Com]: libxml2 2.7.1 causes breakage with character data in xml_parse()
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-130072@lists.php.net to get a copy of this message 
 ID:               45996
 Comment by:       sanepit at o2 dot pl
 Reported By:      phpbugs at colin dot guthr dot ie
 Status:           Assigned
 Bug Type:         XML related
 Operating System: Mandriva Linux
 PHP Version:      5.2.6
 Assigned To:      rrichards
 New Comment:

I have the same problem on Gentoo with new libxml2-2.6.32
In moodle platform this problem disable to restore courses backup.


Previous Comments:
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[2008-10-22 11:39:48] markus dot gevers at contenit dot de

Hallo,

is there a solution yet?

I have the same problem on Fedora Core 9.
I also have this problem using libxml2-2.6.32

Can anyone help me?

Best regards,
Markus

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[2008-10-17 14:08:57] rrichards@php.net

Changing the flag fixes internally defined entities, but breaks the
rest 
of the entity handling.

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[2008-10-17 13:40:27] jorton@php.net

So far as I can tell the only problem here is that libxml2 is bailing
in parser.c:xmlParseReference() because the ctxt->wellFormed flag is
cleared.  It is set to zero by compat.c, which seems simply wrong;
xmlCreate*ParserContext initialize it to non-zero.

If I apply this patch it works fine:

http://people.apache.org/~jorton/php-5.2.6-xmlwformed.patch

Rob?

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[2008-10-16 14:56:03] mike at kogan dot org

Nevermind we got it - libexpat is in and workaround is fine. Thanks
again and happy coding!

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[2008-10-16 02:01:00] mike at Kogan dot org

Thanks Col - unfortunately after thrashing on this for a day I either
have gotten libexpat built in and it hasn't worked, or my efforts to
build it into Apache2 have not worked. How can I tell once I've rebuilt
apache whether it's in or not? Will it show up on phpinfo? I see
libexpat.so on the system and configured apache --with-expat=builtin and
tried using the expat on the system but I'm not sure if it's actually
getting there. Sorry in advance if this is not the place to ask such a
question but googling libexpat has not been fruitful.

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