#18697 [Opn->Csd]: HTTP POST with libcurl can cause Segmentation fault

From: Date: Fri, 02 Aug 2002 23:05:15 +0000
Subject: #18697 [Opn->Csd]: HTTP POST with libcurl can cause Segmentation fault
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-15875@lists.php.net to get a copy of this message 
 ID:               18697
 Updated by:       sniper@php.net
 Reported By:      glen@designsolution.co.uk
-Status:           Open
+Status:           Closed
 Bug Type:         cURL related
 Operating System: Linux
 PHP Version:      4.2.2
 New Comment:

This bug has been fixed in CVS. You can grab a snapshot of the
CVS version at http://snaps.php.net/. In case this was a
documentation 
problem, the fix will show up soon at http://www.php.net/manual/.
In case this was a PHP.net website problem, the change will show
up on the PHP.net site and on the mirror sites.
Thank you for the report, and for helping us make PHP better.


..and update your CURL..



Previous Comments:
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[2002-08-02 03:21:58] glen@designsolution.co.uk

I'm afraid this bug may be quite tricky to track down, but here goes:

This script:

$ch = curl_init();

curl_setopt( $ch, CURLOPT_URL, 'http://www.foo.com/test.php' );
curl_setopt( $ch, CURLOPT_FAILONERROR, 1 );
curl_setopt( $ch, CURLOPT_FOLLOWLOCATION, 1 );
curl_setopt( $ch, CURLOPT_TIMEOUT, 3 );	// times out after 4s
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, 1 );
curl_setopt( $ch, CURLOPT_POST, 1 );
curl_setopt( $ch, CURLOPT_POSTFIELDS,
'postvar1=php&postvar2=is&postvar3=great' );

$result = curl_exec( $ch );
curl_close( $ch );

echo "result = '$result'";

will work 9 out of 10 times with no problem at all.  However,
occasionally it will crash Apache.  The line in the error log says
'child pid 2154 exit signal Segmentation fault (11)' and the browser
will report 'The document contains no data'.

I will attempt to get a backtrace if this will help.

Here is my configure line:

 './configure' '--with-apxs=/usr/sbin/apxs' '--with-mysql=/usr/'
'--with-gd=/usr/local' '--with-png-dir=/usr/local'
'--with-zlib-dir=/usr' '--with-jpeg-dir=/usr/local'
'--with-crack=../cracklib-2.7' '--with-curl=/usr/local'
'--with-mcrypt=/usr/local' '--with-pspell=/usr/local'

My phpinfo reports curl support as:

libcurl 7.9.6 (SSL 0.9.3)

Thanks,

Glen






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