Provided by: libparse-netstat-perl_0.150-1_all 
NAME
Parse::Netstat::freebsd - Parse the output of FreeBSD "netstat" command
VERSION
This document describes version 0.150 of Parse::Netstat::freebsd (from Perl distribution
Parse-Netstat), released on 2022-12-04.
SYNOPSIS
use Parse::Netstat qw(parse_netstat);
my $res = parse_netstat(output=>join("", `netstat -an`), flavor=>"freebsd");
Sample `netstat -an` output:
Active Internet connections (including servers)
Proto Recv-Q Send-Q Local Address Foreign Address (state)
tcp4 0 0 192.168.1.33.780 192.168.1.10.2049 CLOSE_WAIT
tcp4 0 0 192.168.1.33.632 192.168.1.10.2049 CLOSED
tcp4 0 0 127.0.0.1.6012 *.* LISTEN
tcp6 0 0 ::1.6012 *.* LISTEN
tcp4 0 52 192.168.1.33.22 192.168.1.10.41487 ESTABLISHED
tcp4 0 0 127.0.0.1.6011 *.* LISTEN
tcp6 0 0 ::1.6011 *.* LISTEN
tcp4 0 0 192.168.1.33.22 192.168.1.10.61223 ESTABLISHED
tcp4 0 0 127.0.0.1.6010 *.* LISTEN
tcp6 0 0 ::1.6010 *.* LISTEN
tcp4 0 0 192.168.1.33.22 192.168.1.10.18499 ESTABLISHED
tcp4 0 0 192.168.1.33.22 192.168.1.10.30712 ESTABLISHED
tcp4 0 0 127.0.0.1.25 *.* LISTEN
tcp4 0 0 *.22 *.* LISTEN
tcp6 0 0 *.22 *.* LISTEN
tcp4 0 0 *.4949 *.* LISTEN
tcp6 0 0 *.4949 *.* LISTEN
tcp4 0 0 *.667 *.* LISTEN
tcp6 0 0 *.896 *.* LISTEN
tcp4 0 0 *.879 *.* LISTEN
tcp6 0 0 *.879 *.* LISTEN
tcp4 0 0 *.111 *.* LISTEN
tcp6 0 0 *.111 *.* LISTEN
udp4 0 0 *.682 *.*
udp6 0 0 *.726 *.*
udp6 0 0 *.948 *.*
udp4 0 0 *.* *.*
udp4 0 0 *.879 *.*
udp6 0 0 *.879 *.*
udp6 0 0 *.* *.*
udp4 0 0 *.755 *.*
udp4 0 0 *.111 *.*
udp6 0 0 *.932 *.*
udp6 0 0 *.111 *.*
udp4 0 0 *.514 *.*
udp6 0 0 *.514 *.*
Active UNIX domain sockets
Address Type Recv-Q Send-Q Inode Conn Refs Nextref Addr
fffff80057aa11e0 stream 0 0 0 0 0 0
fffff80057aa12d0 stream 0 0 0 0 0 0
fffff8001b0bc5a0 stream 0 0 fffff80011150938 0 0 0 /tmp/ssh-52dQiqRzC4/agent.35116
fffff8001b0bc780 stream 0 0 0 fffff8001b0bcc30 0 0
fffff8001b0bcc30 stream 0 0 0 fffff8001b0bc780 0 0
fffff80002ad85a0 stream 0 0 fffff80030dfd760 0 0 0 /tmp/ssh-ZPrtis6Qgb/agent.21969
fffff8001b0bc2d0 stream 0 0 0 fffff80057aa10f0 0 0
fffff80057aa10f0 stream 0 0 0 fffff8001b0bc2d0 0 0
fffff80002ad82d0 stream 0 0 0 fffff80002ad84b0 0 0
fffff80002ad84b0 stream 0 0 0 fffff80002ad82d0 0 0
fffff800028b3960 stream 0 0 fffff800354e3588 0 0 0 /var/run/dbus/system_bus_socket
fffff80002ad8a50 stream 0 0 0 fffff80002ad8c30 0 0
fffff80002ad8c30 stream 0 0 0 fffff80002ad8a50 0 0
fffff80002ad91e0 stream 0 0 fffff80002f5b1d8 0 0 0 /tmp/ssh-EXvnWwxbk4/agent.750
fffff80002ad93c0 stream 0 0 0 fffff80002ad90f0 0 0
fffff80002ad90f0 stream 0 0 0 fffff80002ad93c0 0 0
fffff80002ad9780 stream 0 0 fffff800029db000 0 0 0 /var/run/rpcbind.sock
fffff80002ad9b40 stream 0 0 fffff800029a4000 0 0 0 /var/run/devd.pipe
fffff80002ad80f0 dgram 0 0 0 fffff80002ad9960 0 fffff80002ad94b0
fffff80002ad9000 dgram 0 0 0 fffff80002ad9870 0 fffff80002ad92d0
fffff80002ad94b0 dgram 0 0 0 fffff80002ad9960 0 0
fffff80002ad92d0 dgram 0 0 0 fffff80002ad9870 0 fffff80002ad9690
fffff80002ad9690 dgram 0 0 0 fffff80002ad9870 0 fffff80002ad95a0
fffff80002ad95a0 dgram 0 0 0 fffff80002ad9870 0 0
fffff80002ad9870 dgram 0 0 fffff80002b3e938 0 fffff80002ad9000 0 /var/run/logpriv
fffff80002ad9960 dgram 0 0 fffff80002b3eb10 0 fffff80002ad80f0 0 /var/run/log
fffff80002ad9a50 seqpac 0 0 fffff80002947ce8 0 0 0 /var/run/devd.seqpacket.pipe
Sample result:
[
200,
"OK",
{
active_conns => [
{
foreign_host => "192.168.1.10",
foreign_port => 2049,
local_host => "192.168.1.33",
local_port => 780,
proto => "tcp4",
recvq => 0,
sendq => 0,
state => "CLOSE_WAIT",
},
{
foreign_host => "192.168.1.10",
foreign_port => 2049,
local_host => "192.168.1.33",
local_port => 632,
proto => "tcp4",
recvq => 0,
sendq => 0,
state => "CLOSED",
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "127.0.0.1",
local_port => 6012,
proto => "tcp4",
recvq => 0,
sendq => 0,
state => "LISTEN",
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "::1",
local_port => 6012,
proto => "tcp6",
recvq => 0,
sendq => 0,
state => "LISTEN",
},
{
foreign_host => "192.168.1.10",
foreign_port => 41487,
local_host => "192.168.1.33",
local_port => 22,
proto => "tcp4",
recvq => 0,
sendq => 52,
state => "ESTABLISHED",
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "127.0.0.1",
local_port => 6011,
proto => "tcp4",
recvq => 0,
sendq => 0,
state => "LISTEN",
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "::1",
local_port => 6011,
proto => "tcp6",
recvq => 0,
sendq => 0,
state => "LISTEN",
},
{
foreign_host => "192.168.1.10",
foreign_port => 61223,
local_host => "192.168.1.33",
local_port => 22,
proto => "tcp4",
recvq => 0,
sendq => 0,
state => "ESTABLISHED",
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "127.0.0.1",
local_port => 6010,
proto => "tcp4",
recvq => 0,
sendq => 0,
state => "LISTEN",
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "::1",
local_port => 6010,
proto => "tcp6",
recvq => 0,
sendq => 0,
state => "LISTEN",
},
{
foreign_host => "192.168.1.10",
foreign_port => 18499,
local_host => "192.168.1.33",
local_port => 22,
proto => "tcp4",
recvq => 0,
sendq => 0,
state => "ESTABLISHED",
},
{
foreign_host => "192.168.1.10",
foreign_port => 30712,
local_host => "192.168.1.33",
local_port => 22,
proto => "tcp4",
recvq => 0,
sendq => 0,
state => "ESTABLISHED",
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "127.0.0.1",
local_port => 25,
proto => "tcp4",
recvq => 0,
sendq => 0,
state => "LISTEN",
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "*",
local_port => 22,
proto => "tcp4",
recvq => 0,
sendq => 0,
state => "LISTEN",
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "*",
local_port => 22,
proto => "tcp6",
recvq => 0,
sendq => 0,
state => "LISTEN",
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "*",
local_port => 4949,
proto => "tcp4",
recvq => 0,
sendq => 0,
state => "LISTEN",
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "*",
local_port => 4949,
proto => "tcp6",
recvq => 0,
sendq => 0,
state => "LISTEN",
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "*",
local_port => 667,
proto => "tcp4",
recvq => 0,
sendq => 0,
state => "LISTEN",
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "*",
local_port => 896,
proto => "tcp6",
recvq => 0,
sendq => 0,
state => "LISTEN",
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "*",
local_port => 879,
proto => "tcp4",
recvq => 0,
sendq => 0,
state => "LISTEN",
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "*",
local_port => 879,
proto => "tcp6",
recvq => 0,
sendq => 0,
state => "LISTEN",
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "*",
local_port => 111,
proto => "tcp4",
recvq => 0,
sendq => 0,
state => "LISTEN",
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "*",
local_port => 111,
proto => "tcp6",
recvq => 0,
sendq => 0,
state => "LISTEN",
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "*",
local_port => 682,
proto => "udp4",
recvq => 0,
sendq => 0,
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "*",
local_port => 726,
proto => "udp6",
recvq => 0,
sendq => 0,
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "*",
local_port => 948,
proto => "udp6",
recvq => 0,
sendq => 0,
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "*",
local_port => "*",
proto => "udp4",
recvq => 0,
sendq => 0,
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "*",
local_port => 879,
proto => "udp4",
recvq => 0,
sendq => 0,
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "*",
local_port => 879,
proto => "udp6",
recvq => 0,
sendq => 0,
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "*",
local_port => "*",
proto => "udp6",
recvq => 0,
sendq => 0,
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "*",
local_port => 755,
proto => "udp4",
recvq => 0,
sendq => 0,
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "*",
local_port => 111,
proto => "udp4",
recvq => 0,
sendq => 0,
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "*",
local_port => 932,
proto => "udp6",
recvq => 0,
sendq => 0,
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "*",
local_port => 111,
proto => "udp6",
recvq => 0,
sendq => 0,
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "*",
local_port => 514,
proto => "udp4",
recvq => 0,
sendq => 0,
},
{
foreign_host => "*",
foreign_port => "*",
local_host => "*",
local_port => 514,
proto => "udp6",
recvq => 0,
sendq => 0,
},
{},
{},
{
address => "fffff80057aa11e0",
conn => 0,
inode => 0,
nextref => 0,
proto => "unix",
recvq => 0,
refs => 0,
sendq => 0,
type => "stream",
},
{
address => "fffff80057aa12d0",
conn => 0,
inode => 0,
nextref => 0,
proto => "unix",
recvq => 0,
refs => 0,
sendq => 0,
type => "stream",
},
{
addr => "/tmp/ssh-52dQiqRzC4/agent.35116",
address => "fffff8001b0bc5a0",
conn => 0,
inode => "fffff80011150938",
nextref => 0,
proto => "unix",
recvq => 0,
refs => 0,
sendq => 0,
type => "stream",
},
{
address => "fffff8001b0bc780",
conn => "fffff8001b0bcc30",
inode => 0,
nextref => 0,
proto => "unix",
recvq => 0,
refs => 0,
sendq => 0,
type => "stream",
},
{
address => "fffff8001b0bcc30",
conn => "fffff8001b0bc780",
inode => 0,
nextref => 0,
proto => "unix",
recvq => 0,
refs => 0,
sendq => 0,
type => "stream",
},
{
addr => "/tmp/ssh-ZPrtis6Qgb/agent.21969",
address => "fffff80002ad85a0",
conn => 0,
inode => "fffff80030dfd760",
nextref => 0,
proto => "unix",
recvq => 0,
refs => 0,
sendq => 0,
type => "stream",
},
{
address => "fffff8001b0bc2d0",
conn => "fffff80057aa10f0",
inode => 0,
nextref => 0,
proto => "unix",
recvq => 0,
refs => 0,
sendq => 0,
type => "stream",
},
{
address => "fffff80057aa10f0",
conn => "fffff8001b0bc2d0",
inode => 0,
nextref => 0,
proto => "unix",
recvq => 0,
refs => 0,
sendq => 0,
type => "stream",
},
{
address => "fffff80002ad82d0",
conn => "fffff80002ad84b0",
inode => 0,
nextref => 0,
proto => "unix",
recvq => 0,
refs => 0,
sendq => 0,
type => "stream",
},
{
address => "fffff80002ad84b0",
conn => "fffff80002ad82d0",
inode => 0,
nextref => 0,
proto => "unix",
recvq => 0,
refs => 0,
sendq => 0,
type => "stream",
},
{
addr => "/var/run/dbus/system_bus_socket",
address => "fffff800028b3960",
conn => 0,
inode => "fffff800354e3588",
nextref => 0,
proto => "unix",
recvq => 0,
refs => 0,
sendq => 0,
type => "stream",
},
{
address => "fffff80002ad8a50",
conn => "fffff80002ad8c30",
inode => 0,
nextref => 0,
proto => "unix",
recvq => 0,
refs => 0,
sendq => 0,
type => "stream",
},
{
address => "fffff80002ad8c30",
conn => "fffff80002ad8a50",
inode => 0,
nextref => 0,
proto => "unix",
recvq => 0,
refs => 0,
sendq => 0,
type => "stream",
},
{
addr => "/tmp/ssh-EXvnWwxbk4/agent.750",
address => "fffff80002ad91e0",
conn => 0,
inode => "fffff80002f5b1d8",
nextref => 0,
proto => "unix",
recvq => 0,
refs => 0,
sendq => 0,
type => "stream",
},
{
address => "fffff80002ad93c0",
conn => "fffff80002ad90f0",
inode => 0,
nextref => 0,
proto => "unix",
recvq => 0,
refs => 0,
sendq => 0,
type => "stream",
},
{
address => "fffff80002ad90f0",
conn => "fffff80002ad93c0",
inode => 0,
nextref => 0,
proto => "unix",
recvq => 0,
refs => 0,
sendq => 0,
type => "stream",
},
{
addr => "/var/run/rpcbind.sock",
address => "fffff80002ad9780",
conn => 0,
inode => "fffff800029db000",
nextref => 0,
proto => "unix",
recvq => 0,
refs => 0,
sendq => 0,
type => "stream",
},
{
addr => "/var/run/devd.pipe",
address => "fffff80002ad9b40",
conn => 0,
inode => "fffff800029a4000",
nextref => 0,
proto => "unix",
recvq => 0,
refs => 0,
sendq => 0,
type => "stream",
},
{
address => "fffff80002ad80f0",
conn => "fffff80002ad9960",
inode => 0,
nextref => "fffff80002ad94b0",
proto => "unix",
recvq => 0,
refs => 0,
sendq => 0,
type => "dgram",
},
{
address => "fffff80002ad9000",
conn => "fffff80002ad9870",
inode => 0,
nextref => "fffff80002ad92d0",
proto => "unix",
recvq => 0,
refs => 0,
sendq => 0,
type => "dgram",
},
{
address => "fffff80002ad94b0",
conn => "fffff80002ad9960",
inode => 0,
nextref => 0,
proto => "unix",
recvq => 0,
refs => 0,
sendq => 0,
type => "dgram",
},
{
address => "fffff80002ad92d0",
conn => "fffff80002ad9870",
inode => 0,
nextref => "fffff80002ad9690",
proto => "unix",
recvq => 0,
refs => 0,
sendq => 0,
type => "dgram",
},
{
address => "fffff80002ad9690",
conn => "fffff80002ad9870",
inode => 0,
nextref => "fffff80002ad95a0",
proto => "unix",
recvq => 0,
refs => 0,
sendq => 0,
type => "dgram",
},
{
address => "fffff80002ad95a0",
conn => "fffff80002ad9870",
inode => 0,
nextref => 0,
proto => "unix",
recvq => 0,
refs => 0,
sendq => 0,
type => "dgram",
},
{
addr => "/var/run/logpriv",
address => "fffff80002ad9870",
conn => 0,
inode => "fffff80002b3e938",
nextref => 0,
proto => "unix",
recvq => 0,
refs => "fffff80002ad9000",
sendq => 0,
type => "dgram",
},
{
addr => "/var/run/log",
address => "fffff80002ad9960",
conn => 0,
inode => "fffff80002b3eb10",
nextref => 0,
proto => "unix",
recvq => 0,
refs => "fffff80002ad80f0",
sendq => 0,
type => "dgram",
},
{
addr => "/var/run/devd.seqpacket.pipe",
address => "fffff80002ad9a50",
conn => 0,
inode => "fffff80002947ce8",
nextref => 0,
proto => "unix",
recvq => 0,
refs => 0,
sendq => 0,
type => "seqpac",
},
],
},
]
FUNCTIONS
parse_netstat
Usage:
parse_netstat(%args) -> [$status_code, $reason, $payload, \%result_meta]
Parse the output of FreeBSD "netstat" command.
Netstat can be called with "-n" (show raw IP addresses and port numbers instead of
hostnames or port names) or without. It can be called with "-a" (show all listening and
non-listening socket) option or without.
Tested with FreeBSD 10.1's netstat.
This function is not exported by default, but exportable.
Arguments ('*' denotes required arguments):
• output* => str
Output of netstat command.
• tcp => bool (default: 1)
Whether to parse TCP (and TCP6) connections.
• udp => bool (default: 1)
Whether to parse UDP (and UDP6) connections.
• unix => bool (default: 1)
Whether to parse Unix socket connections.
Returns an enveloped result (an array).
First element ($status_code) is an integer containing HTTP-like status code (200 means OK,
4xx caller error, 5xx function error). Second element ($reason) is a string containing
error message, or something like "OK" if status is 200. Third element ($payload) is the
actual result, but usually not present when enveloped result is an error response
($status_code is not 2xx). Fourth element (%result_meta) is called result metadata and is
optional, a hash that contains extra information, much like how HTTP response headers
provide additional metadata.
Return value: (any)
HOMEPAGE
Please visit the project's homepage at <https://metacpan.org/release/Parse-Netstat>.
SOURCE
Source repository is at <https://github.com/perlancar/perl-Parse-Netstat>.
AUTHOR
perlancar <perlancar@cpan.org>
CONTRIBUTING
To contribute, you can send patches by email/via RT, or send pull requests on GitHub.
Most of the time, you don't need to build the distribution yourself. You can simply modify
the code, then test via:
% prove -l
If you want to build the distribution (e.g. to try to install it locally on your system),
you can install Dist::Zilla, Dist::Zilla::PluginBundle::Author::PERLANCAR,
Pod::Weaver::PluginBundle::Author::PERLANCAR, and sometimes one or two other Dist::Zilla-
and/or Pod::Weaver plugins. Any additional steps required beyond that are considered a bug
and can be reported to me.
COPYRIGHT AND LICENSE
This software is copyright (c) 2022, 2017, 2015, 2014, 2012, 2011 by perlancar
<perlancar@cpan.org>.
This is free software; you can redistribute it and/or modify it under the same terms as
the Perl 5 programming language system itself.
BUGS
Please report any bugs or feature requests on the bugtracker website
<https://rt.cpan.org/Public/Dist/Display.html?Name=Parse-Netstat>
When submitting a bug or request, please include a test-file or a patch to an existing
test-file that illustrates the bug or desired feature.