#!/usr/bin/perl
#
# Copyright 2006-2014 SPARTA, Inc.  All rights reserved.  See the COPYING
# file distributed with this software for details.
#
# DNSSEC-Tools:  dtdefs
#
#	This script displays the DNSSEC-Tools default values defined in
#	the defaults.pm module.  The command is used in this way:
#
#		dtdefs
#

use strict;

use Net::DNS::SEC::Tools::defaults;

#
# Version information.
#
my $NAME   = "dtdefs";
my $VERS   = "$NAME version: 2.1.0";
my $DTVERS = "DNSSEC-Tools Version: 2.1";

my @defnames;					# Array of default names.
my $maxlen = 0;					# Maximum default name length.
my $blanks = "";				# String o' blanks.

main();
exit(0);

#----------------------------------------------------------------------------
#
# Routine:	main()
#
# Purpose:	Yeah, yeah, a main() isn't necessary.  However, it offends my
#		sense of aesthetics to have great gobs of code on the same
#		level as a pile of globals.
#
#		But what about those globals, you ask...
#
sub main
{
	#
	# show the version number.
	#
	version() if(grep(/^-Version$/,@ARGV));

	#
	# Give a usage message when required.
	#
	usage() if(@ARGV > 0);

	#
	# Get the list of DNSSEC-Tools default names.
	#
	@defnames = dnssec_tools_defnames();
	exit(0) if(@defnames == 0);

	#
	# Find the maximum length of the default names.
	#
	foreach my $dn (sort(@defnames))
	{
		my $len = length($dn);
		$maxlen = $len if($len > $maxlen);
	}

	#
	# Build a string of blanks that's as long as our longest default name.
	#
	$blanks = " " x $maxlen;

	#
	# Print all the default names and their values.  The names are adjusted
	# such that the columns all line up nicely.
	#
	foreach my $dn (sort(@defnames))
	{
		my $dv;				# Default's value.
		my $newname;			# Default name w/ blanks.

		$dv = dnssec_tools_default($dn);
		$dn .= $blanks;

		$newname = substr($dn,0,$maxlen);
		print "$newname\t\t$dv\n";
	}

}

#----------------------------------------------------------------------
#
# Routine:	version()
#
# Purpose:	Print the version number(s) and exit.
#
sub version
{
	print STDERR "$VERS\n";
	print STDERR "$DTVERS\n";

	exit(0);
}

#----------------------------------------------------------------------------
#
# Routine:	usage()
#
sub usage()
{
	print STDERR "usage:  dtdefs [-Version]\n";
	exit(0);
}

1;

##############################################################################
#

=pod

=head1 NAME

dtdefs - Displays defaults defined for DNSSEC-Tools

=head1 SYNOPSIS

  dtdefs

=head1 DESCRIPTION

The B<dtdefs> program displays defaults defined for DNSSEC-Tools.

=head1 OPTIONS

The following options are handled by B<dtdefs>.

=over 4

=item B<-Version>

Displays the version information for B<dtdefs> and the DNSSEC-Tools package.

=back

=head1 COPYRIGHT

Copyright 2006-2014 SPARTA, Inc.  All rights reserved.
See the COPYING file included with the DNSSEC-Tools package for details.

=head1 AUTHOR

Wayne Morrison, tewok@tislabs.com

=head1 SEE ALSO

B<Net::DNS::SEC::Tools::defaults.pm(3)>

=cut
