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#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2009, Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at http://curl.haxx.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
# $Id$
#***************************************************************************
package serverhelp;
use strict;
use warnings;
use Exporter;
#***************************************************************************
# Global symbols allowed without explicit package name
#
use vars qw(
@ISA
@EXPORT_OK
);
#***************************************************************************
# Inherit Exporter's capabilities
#
@ISA = qw(Exporter);
#***************************************************************************
# Global symbols this module will export upon request
#
@EXPORT_OK = qw(
servername_id
servername_str
servername_canon
);
#***************************************************************************
# Return server name string formatted for presentation purposes
#
sub servername_str {
my ($proto, $ipver, $idnum) = @_;
$proto = uc($proto) if($proto);
die "unsupported protocol: $proto" unless($proto &&
($proto =~ /^(((FTP|HTTP|IMAP|POP3|SMTP|TFTP)S?)|(SOCKS|SSH))$/));
$ipver = (not $ipver) ? 'ipv4' : lc($ipver);
die "unsupported IP version: $ipver" unless($ipver &&
($ipver =~ /^(4|6|ipv4|ipv6|-ipv4|-ipv6)$/));
$ipver = ($ipver =~ /6$/) ? '-IPv6' : '';
$idnum = 1 if(not $idnum);
die "unsupported ID number: $idnum" unless($idnum &&
($idnum =~ /^(\d+)$/));
$idnum = '' unless($idnum > 1);
return "${proto}${idnum}${ipver}";
}
#***************************************************************************
# Return server name string formatted for identification purposes
#
sub servername_id {
my ($proto, $ipver, $idnum) = @_;
return lc(servername_str($proto, $ipver, $idnum));
}
#***************************************************************************
# Return server name string formatted for file name purposes
#
sub servername_canon {
my ($proto, $ipver, $idnum) = @_;
my $string = lc(servername_str($proto, $ipver, $idnum));
$string =~ tr/-/_/;
return $string;
}
#***************************************************************************
# End of library
1;
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