This file is indexed.

/usr/share/perl5/Parse/Netstat/freebsd.pm is in libparse-netstat-perl 0.14-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
package Parse::Netstat::freebsd;

our $DATE = '2017-02-10'; # DATE
our $VERSION = '0.14'; # VERSION

use 5.010001;
use strict;
use warnings;

use Exporter;
our @ISA = qw(Exporter);
our @EXPORT_OK = qw(parse_netstat);

our %SPEC;

$SPEC{parse_netstat} = {
    v => 1.1,
    summary => 'Parse the output of FreeBSD "netstat" command',
    description => <<'_',

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.

_
    args => {
        output => {
            summary => 'Output of netstat command',
            schema => 'str*',
            req => 1,
        },
        tcp => {
            summary => 'Whether to parse TCP (and TCP6) connections',
            schema  => [bool => default => 1],
        },
        udp => {
            summary => 'Whether to parse UDP (and UDP6) connections',
            schema  => [bool => default => 1],
        },
        unix => {
            summary => 'Whether to parse Unix socket connections',
            schema  => [bool => default => 1],
        },
    },
};
sub parse_netstat {
    my %args = @_;
    my $output = $args{output} or return [400, "Please specify output"];
    my $tcp    = $args{tcp} // 1;
    my $udp    = $args{udp} // 1;
    my $unix   = $args{unix} // 1;

    my $in_unix;
    my $in_unix_header;
    my @conns;
    my $i = 0;
    for my $line (split /^/, $output) {
        $i++;
        my %k;
        if ($line =~ /^Registered kernel control modules/) {
            $in_unix = 0;
        } elsif ($line =~ /^tcp/ && $tcp) {
            #Proto Recv-Q Send-Q Local Address               Foreign Address             State       PID/Program name
            #tcp4       0      0 192.168.1.33.632       192.168.1.10.2049      CLOSED
            $line =~ m!^(?P<proto>tcp(?:4|6|46)?) \s+ (?P<recvq>\d+) \s+ (?P<sendq>\d+)\s+
                       (?P<local_host>\S+?)[:.](?P<local_port>\w+)\s+
                       (?P<foreign_host>\S+?)[:.](?P<foreign_port>\w+|\*)\s+
                       (?P<state>\S+) (?: \s+ (?:
                               (?P<pid>\d+)/(?P<program>.+?) |
                               -
                       ))? \s*$!x
                           or return [400, "Can't parse tcp line (#$i): $line"];
            %k = %+;
        } elsif ($line =~ /^udp/ && $udp) {
            #Proto Recv-Q Send-Q Local Address          Foreign Address        (state)
            #udp4       0      0 *.879                  *.*
            $line =~ m!^(?P<proto>udp(?:4|6|46)?) \s+ (?P<recvq>\d+) \s+ (?P<sendq>\d+) \s+
                       (?P<local_host>\S+?)[:.](?P<local_port>\w+|\*)\s+
                       (?P<foreign_host>\S+?)[:.](?P<foreign_port>\w+|\*)
                       (?: \s+
                           (?P<state>\S+)?
                           (?: \s+ (?:
                                   (?P<pid>\d+)/(?P<program>.+?) |
                                   -
                           ))?
                       )? \s*$!x
                           or return [400, "Can't parse udp line (#$i): $line"];
            %k = %+;
        } elsif ($in_unix && $unix) {
            #Address  Type   Recv-Q Send-Q    Inode     Conn     Refs  Nextref Addr
            #fffffe00029912d0 stream      0      0 fffffe0002d8abd0        0        0        0 /tmp/ssh-zwZwlpzaip/agent.1089
            $line =~ m!^(?P<address>\S+) \s+ (?P<type>\S+) \s+
                       (?P<recvq>\d+) \s+ (?P<sendq>\d+) \s+ (?P<inode>[0-9a-f]+) \s+ (?P<conn>[0-9a-f]+) \s+
                       (?P<refs>[0-9a-f]+) \s+ (?P<nextref>[0-9a-f]+)
                       (?:
                           \s+
                           (?P<addr>.+)
                       )?
                       \s*$!x
                           or return [400, "Can't parse unix/freebsd line (#$i): $line"];
            %k = %+;
            $k{proto} = 'unix';
        } elsif ($in_unix_header) {
            $in_unix_header = 0;
            $in_unix++;
        } elsif ($line =~ /^Active (UNIX|LOCAL \(UNIX\)) domain sockets/) {
            $in_unix_header++;
        } else {
            next;
        }
        push @conns, \%k;
    }

    [200, "OK", {active_conns => \@conns}];
}

1;
# ABSTRACT: Parse the output of FreeBSD "netstat" command

__END__

=pod

=encoding UTF-8

=head1 NAME

Parse::Netstat::freebsd - Parse the output of FreeBSD "netstat" command

=head1 VERSION

This document describes version 0.14 of Parse::Netstat::freebsd (from Perl distribution Parse-Netstat), released on 2017-02-10.

=head1 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",
       },
     ],
   },
 ]

=head1 FUNCTIONS


=head2 parse_netstat

Usage:

 parse_netstat(%args) -> [status, msg, result, meta]

Parse the output of FreeBSD "netstat" command.

Netstat can be called with C<-n> (show raw IP addresses and port numbers instead
of hostnames or port names) or without. It can be called with C<-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):

=over 4

=item * B<output>* => I<str>

Output of netstat command.

=item * B<tcp> => I<bool> (default: 1)

Whether to parse TCP (and TCP6) connections.

=item * B<udp> => I<bool> (default: 1)

Whether to parse UDP (and UDP6) connections.

=item * B<unix> => I<bool> (default: 1)

Whether to parse Unix socket connections.

=back

Returns an enveloped result (an array).

First element (status) is an integer containing HTTP status code
(200 means OK, 4xx caller error, 5xx function error). Second element
(msg) is a string containing error message, or 'OK' if status is
200. Third element (result) is optional, the actual result. Fourth
element (meta) is called result metadata and is optional, a hash
that contains extra information.

Return value:  (any)

=head1 HOMEPAGE

Please visit the project's homepage at L<https://metacpan.org/release/Parse-Netstat>.

=head1 SOURCE

Source repository is at L<https://github.com/perlancar/perl-Parse-Netstat>.

=head1 BUGS

Please report any bugs or feature requests on the bugtracker website L<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.

=head1 AUTHOR

perlancar <perlancar@cpan.org>

=head1 COPYRIGHT AND LICENSE

This software is copyright (c) 2017, 2015, 2014, 2012, 2011 by 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.

=cut