91 lines
2.2 KiB
Perl
91 lines
2.2 KiB
Perl
package Net::DNS::Resolver::UNIX;
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use strict;
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use warnings;
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our $VERSION = (qw$Id: UNIX.pm 1856 2021-12-02 14:36:25Z willem $)[2];
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=head1 NAME
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Net::DNS::Resolver::UNIX - Unix resolver class
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=cut
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use base qw(Net::DNS::Resolver::Base);
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my @config_file = grep { -f $_ && -r _ } '/etc/resolv.conf';
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my $dotfile = '.resolv.conf';
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my @dotpath = grep {defined} $ENV{HOME}, '.';
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my @dotfile = grep { -f $_ && -o _ } map {"$_/$dotfile"} @dotpath;
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local $ENV{PATH} = join ':', grep {$_} qw(/bin /usr/bin), $ENV{PATH};
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my $uname = eval {`uname -n 2>/dev/null`} || '';
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chomp $uname;
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my ( $host, @domain ) = split /\./, $uname, 2;
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__PACKAGE__->domain(@domain);
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sub _init {
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my $defaults = shift->_defaults;
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$defaults->_read_config_file($_) foreach @config_file;
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%$defaults = Net::DNS::Resolver::Base::_untaint(%$defaults);
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$defaults->_read_config_file($_) foreach @dotfile;
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$defaults->_read_env;
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return;
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}
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1;
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__END__
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=head1 SYNOPSIS
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use Net::DNS::Resolver;
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=head1 DESCRIPTION
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This class implements the OS specific portions of C<Net::DNS::Resolver>.
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No user serviceable parts inside, see L<Net::DNS::Resolver>
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for all your resolving needs.
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=head1 COPYRIGHT
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Copyright (c)2003 Chris Reinhardt.
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All rights reserved.
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=head1 LICENSE
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted, provided
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that the original copyright notices appear in all copies and that both
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copyright notice and this permission notice appear in supporting
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documentation, and that the name of the author not be used in advertising
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or publicity pertaining to distribution of the software without specific
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prior written permission.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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=head1 SEE ALSO
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L<perl>, L<Net::DNS>, L<Net::DNS::Resolver>
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=cut
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