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#!/usr/bin/perl
#
# extract-port-numbers.pl - Extract port numbers from IANA port-numbers file
#
# Written 2001 by Werner Almesberger
# Copyright 2001 Network Robots
#
while (<>) {
chop;
next if /^\s*#/;
next unless m#\s+(\d+)(-\d+)?/(udp|tcp)\s+#;
$name = $`;
$port = $1;
$range = $2;
$proto = $3;
$dsc = $';
next if $name eq "";
next if $dsc =~ /\s*(Unassigned|Reserved)\s*$/;
$name =~ s/\+\+/_PP/; # whois++
if ($name =~ /[^-A-Za-z0-9\.\*\/_]/) {
print STDERR "ERROR: invalid character \"$&\" in $name ".
"($port/$proto)\n";
next;
}
print STDERR "warning: using only port $port of $port$range\n"
if defined $range;
$name =~ tr/a-z/A-Z/;
$name =~ tr#-.*/#_#;
if (!defined $port{$name}) {
$port{$name} = $port;
$proto{$name} = $proto;
next;
}
if ($port{$name} != $port) {
print STDERR "warning: $name changed port from $port{$name} to $port\n";
$port{$name} = $port;
print STDERR "ERROR: protocol $name changed from $proto{$name} to ".
"$proto\n"
if $proto{$name} ne $proto;
}
}
print "/* MACHINE-GENERATED - DO NOT EDIT ! */\n\n" || die;
print "/* Extracted from IANA port-numbers database, available from */\n".
"/* http://www.iana.org/assignments/port-numbers */\n\n" || die;
print "#ifndef PORTS_TC\n\n" || die;
for (sort keys %port) {
print "#define PORT_$_ $port{$_}\n" || die;
}
print "\n#endif /* PORTS_TC */\n" || die;
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