NAME

       Sisimai::RFC791 - IP related class

SYNOPSIS

           use Sisimai::RFC791;

           my $p = Sisimai::RFC791->find("mx7.example.jp:[192.0.2.27]"); # ["192.0.2.27"]

DESCRIPTION

       "Sisimai::RFC791" is a class related to IP

CLASS METHODS

   "is_ipv4address(String)"
       "is_ipv4address" method returns 1 if the argument is an valid IPv4 address.

           print Sisimai::RFC791->is_ipv4address("192.0.2.25");   # 1
           print Sisimai::RFC791->is_ipv4address("123.456.78.9"); # 0

   "find(String)"
       "find" method return all the IPv4 address found in the given string.

           my $v = "connection refused from 192.0.2.1, DNSBL returned 127.0.0.2";
           my $p = Sisimai::RFC791->find($v); # ["192.0.2.1", "127.0.0.2"]

AUTHOR

       azumakuniyuki

COPYRIGHT

       Copyright (C) 2024 azumakuniyuki, All rights reserved.

LICENSE

       This software is distributed under The BSD 2-Clause License.

perl v5.40.1                                       2025-04-12                               Sisimai::RFC791(3pm)