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Bug #16886 Seg. fault on socket_close if socket died
Submitted: 2002-04-28 08:43 UTC Modified: 2002-09-11 11:00 UTC
From: tech at kalyweb dot com Assigned:
Status: Not a bug Package: Sockets related
PHP Version: 4.0CVS-2002-04-28 OS: Linux RedHat 7.2
Private report: No CVE-ID: None
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 [2002-04-28 08:43 UTC] tech at kalyweb dot com 
I had that issue :
I use a non blocking socket to read a data stream.

I was assuming that if socket_read($socket) !== false then I should close the socket !!
NO ! I must not !
If I close that socket, I have an error : 9975 Segmentation fault      /usr/local/php-cgi/bin/php -q ./core.php

I checked socket_last_error and I found : 104 : Connexion reset by peer ....

It would be nice if the socket is checked before socket_close or socket_shutdown ...

I don't know sockets system under Linux . I can't fix that :(

To have the same error, create a socket, listen on it, accept accept that connexion. On the remote machine, close the telnet (kill or other :D) and then do socket_close on your socket.
Then you have a seg. fault !

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 [2002-04-28 08:57 UTC] mfischer@php.net 
To properly diagnose this bug, we need a backtrace to see what is
happening behind the scenes. To find out how to generate a backtrace,
please read http://bugs.php.net/bugs-generating-backtrace.php

Once you have generated a backtrace, please submit it to this bug
report and change the status back to "Open".
 [2002-09-11 11:00 UTC] sniper@php.net 
Thank you for taking the time to report a problem with PHP.
Unfortunately you are not using a current version of PHP -- 
the problem might already be fixed. Please download a new
PHP version from http://www.php.net/downloads.php

If you are able to reproduce the bug with one of the latest
versions of PHP, please change the PHP version on this bug report
to the version you tested and change the status back to "Open".
Again, thank you for your continued support of PHP.
 
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