use DynaLoader;

# declare the library functions
@exconfig_syms = ('XS_ExConfig_fnGetLocalIPAddresses');

# declare the library files
$ExConfigLibFile='libconf.so';

# load the library file
$exconfig_libref = load_shared_lib($ExConfigLibFile);

unless (import_shared_lib_syms($exconfig_libref, \@exconfig_syms)) {
    print ("\n*** ERROR: failed to import symbols from library '$ExConfigLibFile'!");
    exit;
}

{
    my @locals = split(/\|/, hostIP());
    print ("Local address". ((@locals > 1) ? "es" : '').":\n\t" . join ("\n\t", @locals));
}



sub load_shared_lib {
    my $lib_file = shift; 
    my $lib_ref = undef;

    $lib_ref = DynaLoader::dl_load_file($lib_file,1);
     return $lib_ref;
}

sub import_shared_lib_syms {
    my $lib_ref = shift;
    my $lib_syms = shift;

    # Load functions from shared library
    foreach my $key (@{$lib_syms}) {#Load function from shared library
	my $sym_ref = DynaLoader::dl_find_symbol($lib_ref, $key);
	unless ($sym_ref) {
	    print("\nCan't load symbol '$key' from shared library $lib_file:\n\t". DynaLoader::dl_error());
            return 0;
	}
	# Install XSub function
	(my $func = $key) =~ s/XS_//;
	my $func_ref = DynaLoader::dl_install_xsub($func, $sym_ref);
	unless ($func_ref) {
	    print("\nUnable to install '$key' function from shared library $lib_file:\n\t". DynaLoader::dl_error());
            return 0;
	}
    }
    return 1; # $lib_ref;
}
sub hostIP {
    my $IPs;
    # the below functon return the value in 64bit perl
    # and it returns the 'Segmentation fault' error in 32bit perl
    ExConfig_fnGetLocalIPAddresses($IPs);
    return $IPs;
}