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From "Sebb (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (VALIDATOR-421) InetAddressValidator IPV4 rejects IPs with leading 0's in octets
Date Thu, 06 Apr 2017 11:41:41 GMT

     [ https://issues.apache.org/jira/browse/VALIDATOR-421?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sebb resolved VALIDATOR-421.
----------------------------
    Resolution: Won't Fix

This is not a bug.

> InetAddressValidator IPV4 rejects IPs with leading 0's in octets
> ----------------------------------------------------------------
>
>                 Key: VALIDATOR-421
>                 URL: https://issues.apache.org/jira/browse/VALIDATOR-421
>             Project: Commons Validator
>          Issue Type: Bug
>          Components: Routines
>    Affects Versions: 1.6
>            Reporter: Matt Kusnierz
>
> According to Wikipedia "It [IPv4] also allowed the numbers to be written in hexadecimal
and octal, by prefixing them with 0x and 0, respectively", but org.apache.commons.validator.routines.InetAddressValidator.isValidInet4Address(String)
rejects IPs if an ipSegment starts with a leading 0.
> So leading 0's should be detected first, and then used to try and parseInt using the
octal radix.
> The ipv4 regex also doesn't support hex notation.



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