112 lines
2.4 KiB
Perl
112 lines
2.4 KiB
Perl
#!/usr/bin/perl -w
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use strict;
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my $sfile = 'services';
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my $snewfile = 'services.new';
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my %s;
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my %snew;
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parse_services_file($sfile, \%s);
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parse_services_file($snewfile, \%snew);
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my @preserved_pairs;
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my @services_changing_port;
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my @services_renamed;
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my @removed_pairs;
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my @new_pairs;
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BEGINLOOP: foreach my $port (keys %s)
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{
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if (exists($snew{$port}) and $snew{$port} eq $s{$port})
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{
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# service port pair preserved
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push(@preserved_pairs, "$snew{$port} $port");
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next BEGINLOOP;
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}
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foreach my $portnew (keys %snew)
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{
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if ($snew{$portnew} eq $s{$port} and protocol($portnew) eq protocol($port))
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{
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push(@services_changing_port, "$snew{$portnew} $port -> $portnew");
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next BEGINLOOP;
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}
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}
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if (exists($snew{$port})) # and $snew{$port} ne $s{$port} and service don't use another port
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{
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push(@services_renamed, "$s{$port} -> $snew{$port} ($port)");
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}
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else
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{
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push(@removed_pairs, "$s{$port} $port");
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}
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}
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my $string_scp = join(" ", @services_changing_port);
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foreach my $portnew (keys %snew)
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{
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if (not exists($s{$portnew}))
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{
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if (index($string_scp, $snew{$portnew}) == -1)
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{
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push(@new_pairs, "$snew{$portnew} $portnew");
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}
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}
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}
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print_pairs("Removed pairs", sort (@removed_pairs));
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print_pairs("Renamed or replaced services", sort (@services_renamed));
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print_pairs("Services, that changed port", sort (@services_changing_port));
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print_pairs("New pairs", sort (@new_pairs));
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print_pairs("Preserved pairs", sort (@preserved_pairs));
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sub print_pairs
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{
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my $heading = shift;
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my @pairs = @_;
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print "\n";
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print "$heading\n";
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my $underline = ('-' x length($heading));
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print $underline, "\n";
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foreach my $pair (@pairs)
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{ print $pair,"\n"; }
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}
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sub protocol
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{
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my $port = shift;
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$port =~ s/.*\///;
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return $port;
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}
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sub parse_services_file
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{
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my $filename = shift;
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my $hashref = shift;
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open(FILE, $filename) or die "cannot read $filename\n";
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while (<FILE>)
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{
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chomp;
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$_ =~ s/#.*//;
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if ($_)
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{
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# my ($service, $port) = split(/[ \t]+/, $_); is not sufficient because of errors in xml like
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# Apple Remote Desktop (Net Assistant) 3283/tcp # Net Assistant (updated 2011-11-09) [Michael_Stein]
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my $service = my $port = $_;
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$service =~ s:[ \t]+[0-9]+/[a-z]+.*$::;
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$port =~ s:^.*[ \t]+([0-9]+/[a-z]+).*$:$1:;
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$hashref->{$port} = $service;
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# printf "[%s] [%s]\n", ($service, $port);
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}
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}
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close(FILE);
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}
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