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Bug #26667 ip2long("") = 0 intstead of -1
Submitted: 2003-12-19 06:22 UTC Modified: 2003-12-19 08:30 UTC
From: ovdspek at liacs dot nl Assigned:
Status: Closed Package: Network related
PHP Version: 4CVS-2003-12-18 OS: win32 only
Private report: No CVE-ID: None
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 [2003-12-19 06:22 UTC] ovdspek at liacs dot nl 
Description:
------------
ip2long returns 0 if the input is an empty string. However, an empty string is not valid, so it should return -1.

"The function ip2long() generates an IPv4 Internet network address from its Internet standard format (dotted string) representation. If ip_address is invalid than -1 is returned. Note that -1 does not evaluate as FALSE in PHP."

Reproduce code:
---------------
<?php echo ip2long(""); ?>

Expected result:
----------------
-1

Actual result:
--------------
0

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 [2003-12-19 06:41 UTC] derick@php.net 
hmm, works for me:

derick@kossu:~$ php-4.3dev -r 'echo ip2long(""); '
-1
 [2003-12-19 07:03 UTC] derick@php.net 
Please try using this CVS snapshot:

  http://snaps.php.net/php4-STABLE-latest.tar.gz
 
For Windows:
 
  http://snaps.php.net/win32/php4-win32-STABLE-latest.zip

Okay, then please try the latest version :)
 [2003-12-19 07:05 UTC] ovdspek at liacs dot nl 
D:\Temp>php ..\wte\php\a.php
Content-type: text/html
X-Powered-By: PHP/4.3.5-dev

0
 [2003-12-19 08:30 UTC] iliaa@php.net 
This bug has been fixed in CVS.

In case this was a PHP problem, snapshots of the sources are packaged
every three hours; this change will be in the next snapshot. You can
grab the snapshot 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 in short time.
 
Thank you for the report, and for helping us make PHP better.
 
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