From:             keirlavelle1 at hotmail dot co dot uk
Operating system: 
PHP version:      5.3.17
Package:          Streams related
Bug Type:         Bug
Bug description:Creating Socket returns a 'false' stream on local network

Description:
------------
When using fsockopen if the ip address specified for hostname is local and
within the subnet mask range, and UDP is specified as the transport method,
the returned handle will var_dump as a resource of type stream, even if the
ip address doesn't exist on the network - indicating a false positive for
some reason.

Test script:
---------------
$socket = fsockopen('UDP://192.168.213.23:12345', $errno, $errstr, 30);

//assuming that subnet mask is 255.255.255.0 - port can be anything

var_dump($socket);

Expected result:
----------------
bool(false);

//possibly e_warning that domain is not valid

Actual result:
--------------
resource(8) of type (stream)

-- 
Edit bug report at https://bugs.php.net/bug.php?id=63170&edit=1
-- 
Try a snapshot (PHP 5.4):   
https://bugs.php.net/fix.php?id=63170&r=trysnapshot54
Try a snapshot (PHP 5.3):   
https://bugs.php.net/fix.php?id=63170&r=trysnapshot53
Try a snapshot (trunk):     
https://bugs.php.net/fix.php?id=63170&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=63170&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=63170&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=63170&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=63170&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=63170&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=63170&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=63170&r=notwrong
Not enough info:            
https://bugs.php.net/fix.php?id=63170&r=notenoughinfo
Submitted twice:            
https://bugs.php.net/fix.php?id=63170&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=63170&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=63170&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=63170&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=63170&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=63170&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=63170&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=63170&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=63170&r=mysqlcfg

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