blob: 1487b72f068c1c00fd4228503aa0d17d2e331c81 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
#!/usr/bin/env perl
use strict;
use warnings;
use 5.010;
use IO::Handle;
use IPC::Run qw(harness);
use Time::HiRes qw(usleep);
our $VERSION = '0.1';
my $host = shift;
my $id = 0;
my $last_id = 0;
my $is_beep = 1;
my $was_beep = 1;
my $no_reply = 0;
my $ping = harness(['ping', '-n', $host],
'<' => \undef,
'>&' => \&parse_ping_output,
);
sub parse_ping_output {
my ($line) = @_;
chomp($line);
if ($line =~ m{ ^ \d+ \s bytes \s from \s \S+ \s icmp_req = (?<id> \d+ ) }x) {
$id = $+{id};
}
}
$ping->start();
sleep(2);
# Ignore first line
$ping->pump();
while(usleep(100_000)) {
$ping->pump_nb();
if ($id != $last_id) {
$is_beep = 1;
print '^';
$last_id = $id;
$no_reply = 0;
}
else {
$is_beep = 0;
$no_reply++;
if ($no_reply > 15) {
$is_beep = 1;
}
print '_';
}
if ($is_beep) {
print 'O';
}
STDOUT->flush();
}
$ping->kill_kill( grace => 1 );
__END__
=head1 NAME
=head1 SYNOPSIS
=head1 VERSION
=head1 DESCRIPTION
=head1 OPTIONS
=over
=back
=head1 EXIT STATUS
=head1 CONFIGURATION
None.
=head1 DEPENDENCIES
=over
=back
=head1 BUGS AND LIMITATIONS
=head1 AUTHOR
Copyright (C) 2011 by Daniel Friesel E<lt>derf@finalrewind.orgE<gt>
=head1 LICENSE
0. You just DO WHAT THE FUCK YOU WANT TO.
|
