File Coverage

blib/lib/IO/Interface.pm

Criterion	Covered	Total	%
statement	40	44	90.9
branch	7	14	50.0
condition	0	3	0.0
subroutine	11	11	100.0
pod	2	2	100.0
total	60	74	81.0

package IO::Interface;

require 5.005;
use strict;
use Carp;
use vars qw(@EXPORT @EXPORT_OK @ISA %EXPORT_TAGS $VERSION $AUTOLOAD);

use IO::Socket;

require Exporter;
require DynaLoader;
use AutoLoader;

my @functions = qw(if_addr if_broadcast if_netmask if_dstaddr if_hwaddr if_flags if_list if_mtu if_metric
		   addr_to_interface if_index if_indextoname );
my @flags     = qw(IFF_ALLMULTI    IFF_AUTOMEDIA  IFF_BROADCAST
		   IFF_DEBUG       IFF_LOOPBACK   IFF_MASTER
		   IFF_MULTICAST   IFF_NOARP      IFF_NOTRAILERS
		   IFF_POINTOPOINT IFF_PORTSEL    IFF_PROMISC
		   IFF_RUNNING     IFF_SLAVE      IFF_UP);
%EXPORT_TAGS = ( 'all'        => [@functions,@flags],
		 'functions'  => \@functions,
		 'flags'      => \@flags,
	       );

@EXPORT_OK = ( @{ $EXPORT_TAGS{'all'} } );

@EXPORT = qw( );

@ISA = qw(Exporter DynaLoader);
$VERSION = '1.08';

sub AUTOLOAD {
    # This AUTOLOAD is used to 'autoload' constants from the constant()
    # XS function.  If a constant is not found then control is passed
    # to the AUTOLOAD in AutoLoader.

    my $constname;
    ($constname = $AUTOLOAD) =~ s/.*:://;
    croak "&constant not defined" if $constname eq 'constant';
    my $val = constant($constname, @_ ? $_[0] : 0);
    if ($! != 0) {
	if ($! =~ /Invalid/ || $!{EINVAL}) {
	    $AutoLoader::AUTOLOAD = $AUTOLOAD;
	    goto &AutoLoader::AUTOLOAD;
	}
	else {
	    croak "Your vendor has not defined IO::Interface macro $constname";
	}
    }
    {
      no strict 'refs';
      *$AUTOLOAD = sub { $val };  # *$AUTOLOAD = sub() { $val };
    }
    goto &$AUTOLOAD;
}

bootstrap IO::Interface $VERSION;

# copy routines into IO::Socket
{
  no strict 'refs';
  *{"IO\:\:Socket\:\:$_"} = \&$_ foreach @functions;
}

# Preloaded methods go here.

sub if_list {
  my %hash = map {$_=>undef} &_if_list;
  sort keys %hash;
}

sub addr_to_interface {
  my ($sock,$addr) = @_;
  return "any" if $addr eq '0.0.0.0';
  my @interfaces = $sock->if_list;
  foreach (@interfaces) {
    my $if_addr = $sock->if_addr($_) or next;
    return $_ if $if_addr eq $addr;
  }
  return;  # couldn't find it
}

# Autoload methods go after =cut, and are processed by the autosplit program.
1;
__END__