h0   h 0   File not found.   File not found. FlY>*_) ƜS y__ub &=LV[(am_J*j"T~CpMF"K# Net::Domain.pm # # Copyright (C) 1995-1998 Graham Barr. All rights reserved. # Copyright (C) 2013-2014, 2020 Steve Hay. All rights reserved. # This module is free software; you can redistribute it and/or modify it under # the same terms as Perl itself, i.e. under the terms of either the GNU General # Public License or the Artistic License, as specified in the F file. package Net::Domain; use 5.008001; use strict; use warnings; use Carp; use Exporter; use Net::Config; our @ISA = qw(Exporter); our @EXPORT_OK = qw(hostname hostdomain hostfqdn domainname); our $VERSION = "3.13"; my ($host, $domain, $fqdn) = (undef, undef, undef); # Try every conceivable way to get hostname. sub _hostname { # we already know it return $host if (defined $host); if ($^O eq 'MSWin32') { require Socket; my ($name, $alias, $type, $len, @addr) = gethostbyname($ENV{'COMPUTERNAME'} || 'localhost'); while (@addr) { my $a = shift(@addr); $host = gethostbyaddr($a, Socket::AF_INET()); last if defined $host; } if (defined($host) && index($host, '.') > 0) { $fqdn = $host; ($host, $domain) = $fqdn =~ /^([^.]+)\.(.*)$/; } return $host; } elsif ($^O eq 'MacOS') { chomp($host = `hostname`); } elsif ($^O eq 'VMS') { ## multiple varieties of net s/w makes this hard $host = $ENV{'UCX$INET_HOST'} if defined($ENV{'UCX$INET_HOST'}); $host = $ENV{'MULTINET_HOST_NAME'} if defined($ENV{'MULTINET_HOST_NAME'}); if (index($host, '.') > 0) { $fqdn = $host; ($host, $domain) = $fqdn =~ /^([^.]+)\.(.*)$/; } return $host; } else { local $SIG{'__DIE__'}; # syscall is preferred since it avoids tainting problems eval { my $tmp = "\0" x 256; ## preload scalar eval { package main; require "syscall.ph"; ## no critic (Modules::RequireBarewordIncludes) defined(&main::SYS_gethostname); } || eval { package main; require "sys/syscall.ph"; ## no critic (Modules::RequireBarewordIncludes) defined(&main::SYS_gethostname); } and $host = (syscall(&main::SYS_gethostname, $tmp, 256) == 0) ? $tmp : undef; } # POSIX || eval { require POSIX; $host = (POSIX::uname())[1]; } # trusty old hostname command || eval { chop($host = `(hostname) 2>/dev/null`); # BSD'ish } # sysV/POSIX uname command (may truncate) || eval { chop($host = `uname -n 2>/dev/null`); ## SYSV'ish && POSIX'ish } # Apollo pre-SR10 || eval { $host = (split(/[:. ]/, `/com/host`, 6))[0]; } || eval { $host = ""; }; } # remove garbage $host =~ s/[\0\r\n]+//go; $host =~ s/(\A\.+|\.+\Z)//go; $host =~ s/\.\.+/\./go; $host; } sub _hostdomain { # we already know it return $domain if (defined $domain); local $SIG{'__DIE__'}; return $domain = $NetConfig{'inet_domain'} if defined $NetConfig{'inet_domain'}; # try looking in /etc/resolv.conf # putting this here and assuming that it is correct, eliminates # calls to gethostbyname, and therefore DNS lookups. This helps # those on dialup systems. local ($_); if (open(my $res, '<', "/etc/resolv.conf")) { while (<$res>) { $domain = $1 if (/\A\s*(?:domain|search)\s+(\S+)/); } close($res); return $domain if (defined $domain); } # just try hostname and system calls my $host = _hostname(); my (@hosts); @hosts = ($host, "localhost"); unless (defined($host) && $host =~ /\./) { my $dom = undef; eval { my $tmp = "\0" x 256; ## preload scalar eval { package main; require "syscall.ph"; ## no critic (Modules::RequireBarewordIncludes) } || eval