[VALIDATOR-421] InetAddressValidator IPV4 rejects IPs with leading 0's in octets

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 1.6
• Component/s: Routines
• Assignee: Unassigned
• Reporter: Matt Kusnierz
• Created: 05/Apr/17 16:07
• Updated: 06/Apr/17 15:26
• Resolved: 06/Apr/17 11:40

Description

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.