129 lines
3.3 KiB
Perl
Executable File
129 lines
3.3 KiB
Perl
Executable File
#!/usr/bin/perl -w
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# create the services file from
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# http://www.iana.org/assignments/enterprise-numbers
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#
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# Wireshark - Network traffic analyzer
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# By Gerald Combs <gerald@wireshark.org>
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# Copyright 2004 Gerald Combs
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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use strict;
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use English;
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my $svc_file = "services";
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my $in = shift;
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my $min_size = 2000000; # Size was 2654612 on 2011-08-31
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my @exclude_pats = qw(
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^spr-itunes
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^spl-itunes
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^shilp
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);
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my $iana_port_url = "http://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.txt";
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# As of August 2011, the page linked from http://www.iana.org/protocols/
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# is XML. Perhaps we should parse that instead.
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$in = $iana_port_url unless(defined $in);
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my $body = "";
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if($in =~ m/^http:/i) {
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eval "require LWP::UserAgent;";
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die "LWP isn't installed. It is part of the standard Perl module libwww." if $@;
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my $agent = LWP::UserAgent->new;
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$agent->env_proxy;
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$agent->agent("Wireshark make-services.pl");
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warn "starting to fetch $in ...\n";
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my $request = HTTP::Request->new(GET => $in);
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if (-f $svc_file) {
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my $mtime;
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(undef,undef,undef,undef,undef,undef,undef,$min_size,undef,$mtime,undef,undef,undef) = stat($svc_file);
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$request->if_modified_since( $mtime );
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}
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my $result = $agent->request($request);
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if ($result->code eq 200) {
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warn "done fetching $in\n";
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my @in_lines = split /\n/, $result->content;
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my $prefix = "";
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my $exclude_match;
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my $line;
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my $pat;
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foreach $line (@in_lines) {
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$prefix = "# ";
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$exclude_match = 0;
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if ($line =~ /^(\S+)\s+(\d+)\s+(tcp|udp|sctp|dccp)\s+(\S.*)/) {
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$line = "$1 $2/$3 # $4";
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foreach $pat (@exclude_pats) {
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if ($line =~ $pat) {
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$exclude_match = 1;
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last;
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}
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}
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if ($exclude_match) {
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$body .= "# Excluded by $PROGRAM_NAME\n";
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} else {
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$prefix = "";
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}
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}
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$line =~ s/^\s+|\s+$//g;
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$body .= $prefix . $line . "\n";
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}
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} elsif ($result->code eq 304) {
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warn "$svc_file was up-to-date\n";
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exit 0;
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} else {
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die "request for $in failed with result code:" . $result->code;
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}
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} else {
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open IN, "< $in";
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$body = <IN>;
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close IN;
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}
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if (length($body) < $min_size * 0.9) {
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die "$in doesn't have enough data\n";
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}
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open OUT, "> $svc_file";
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print OUT <<"_HEADER";
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# This is a local copy of the IANA port-numbers file.
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#
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# Wireshark uses it to resolve port numbers into human readable
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# service names, e.g. TCP port 80 -> http.
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#
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# It is subject to copyright and being used with IANA's permission:
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# http://www.wireshark.org/lists/wireshark-dev/200708/msg00160.html
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#
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# The original file can be found at:
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# $iana_port_url
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#
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$body
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_HEADER
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close OUT;
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