README
1NAME
2 NetAddr::IP::Find - Find IP addresses in plain text
3
4SYNOPSIS
5 use NetAddr::IP::Find;
6 $num_found = find_ipaddrs($text, \&callback);
7
8DESCRIPTION
9 This is a module for finding IP addresses in plain text.
10
11 Functions
12
13 NetAddr::IP::Find exports one function, find_ipaddrs(). It works very
14 similar to URI::Find's find_uris() or Email::Find's find_emails().
15
16 $num_ipaddrs_found = find_ipaddrs($text, \&callback);
17
18 The first argument is a text to search through and manipulate. Second is
19 a callback routine which defines what to do with each IP address as
20 they're found. It returns the total number of IP addresses found.
21
22 The callback is given two arguments. The first is a NetAddr::IP instance
23 representing the IP address found. The second is the actual IP address
24 as found in the text. Whatever the callback returns will replace the
25 original text.
26
27EXAMPLES
28 # For each IP address found, ping its host to see if its alive.
29 use Net::Ping;
30 my $pinger = Net::Ping->new;
31 my %pinged;
32 find_ipaddrs($text, sub {
33 my($ipaddr, $orig) = @_;
34 my $host = $ipaddr->to_string;
35 next if exists $pinged{$host};
36 $pinged{$host} = $pinger->ping($host);
37 });
38
39 while (my($host, $up) == each %pinged) {
40 print "$host is " . $up ? 'up' : 'down' . "\n";
41 }
42
43 # Resolve IP address to FQDN
44 find_ipaddrs($text, sub {
45 my($ipaddr, $orig) = @_;
46 resolve_ip($ipaddr->to_string);
47 });
48
49 sub resolve_ip {
50 use Net::DNS;
51 # see perldoc Net::DNS for details
52 }
53
54TODO
55 * Subnet support.
56
57 * IPv6 support.
58
59AUTHOR
60 Tatsuhiko Miyagawa <miyagawa@bulknews.net>
61
62 This library is free software; you can redistribute it and/or modify it
63 under the same terms as Perl itself.
64
65SEE ALSO
66 the NetAddr::IP manpage, the URI::Find manpage, the Email::Find manpage,
67 jdresove
68
69