PHP :: Bug #64395 :: Wrong result

Bug #64395

Wrong result

Submitted:

2013-03-08 19:54 UTC

Modified:

2013-06-19 12:15 UTC

Votes:	2
Avg. Score:	3.0 ± 0.0
Reproduced:	0 of 2 (0.0%)

From:

abc905 at mail dot ru

Assigned:

Status:

Wont fix

Package:

Network related

PHP Version:

5.4.13

OS:

Windows 7 x64

Private report:

CVE-ID:

None

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New/Additional Comment:

[2013-03-08 19:54 UTC] abc905 at mail dot ru

Description:
------------
Hello,
It seems ip2long function returns wrong result   
1.1.9.9 instead of 1.1.11.11 when convert ip address like '1.1.011.011'

Thank you,
Alexander

---
From manual page: http://www.php.net/function.long2ip
---


Test script:
---------------
$ip = '1.1.011.011';
$ip_long = sprintf("%u", ip2long($ip));
print long2ip($ip_long);

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[2013-03-17 02:39 UTC] pete at petermcdonald dot co dot uk

I have tried to reproduce on php 5.4.11 (zend server install) using code specified 
but output is expected 1.1.11.11.

[2013-03-21 16:11 UTC] abc905 at mail dot ru

Unfortunatly my output is wrong

PHP. Ver.  5.4.11 (Open Server Win7 x64) and 5.4.9 (Windows Installer install)
Output:    
1.1.011.011 -> 1.1.9.9
1.1.071.071 -> 1.1.57.57
1.1.081.081 -> 0.0.0.0
Looks like long2ip() converts segments with leading zero as octal.

[2013-03-28 15:48 UTC] abc905 at mail dot ru

-PHP Version: 5.4.12 +PHP Version: 5.4.13

[2013-03-28 15:48 UTC] abc905 at mail dot ru

PHP. Ver.  5.4.13 (Open Server Win7 x64)
Output:    
1.1.011.011 -> 1.1.9.9
1.1.071.071 -> 1.1.57.57
1.1.081.081 -> 0.0.0.0
Looks like long2ip() converts segments with leading zero as octal.

[2013-04-21 12:37 UTC] sjon at hortensius dot net

Php interprets numbers with leading zeros as octal [1]. Octal 011 = Decimal 9. 
Also, I think this is not a valid IP address notation.

This is fixed in newer PHP versions, where this format is rejected and false is 
returned; see http://3v4l.org/EBD9k

1. http://php.net/manual/en/language.types.integer.php

[2013-06-19 12:15 UTC] ab@php.net

-Status: Open +Status: Wont fix

[2013-06-19 12:15 UTC] ab@php.net

This won't fix in 5.4 - the native inet_pton platform implementation is available starting with windows vista 
http://msdn.microsoft.com/en-us/library/windows/desktop/cc805844(v=vs.85).aspx , in 5.4 however windows xp support is guaranteed.

In 5.5 the sdk implementation is used, which validates this issue as fixed there. Prior to that PHP own inet_pton implementation is used, 
which isn't perfect. However the case you brought is just one of many more complicated, imagine one would use a hex notation for 
segments including upper and lower letter case. Parsing this is much more complicated and facing the fact it's fixed in 5.5 I'm really not 
sure it's worth to touch 5.4.

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