1 files changed, 9 insertions, 5 deletions

diff --git a/lib/Nagios/Plugin/Functions.pm b/lib/Nagios/Plugin/Functions.pm
index 4ff6118..65200ec 100644
--- a/lib/Nagios/Plugin/Functions.pm
+++ b/lib/Nagios/Plugin/Functions.pm
@@ -54,12 +54,15 @@ my $_use_die = 0;
 sub _use_die { @_ ? $_use_die = shift : $_use_die };
 
 sub get_shortname {
-    my %arg = @_;
+    my $arg = shift;
 
-    return $arg{plugin}->shortname if $arg{plugin};
+    my $shortname = undef;
 
-    my $shortname = uc basename($ENV{NAGIOS_PLUGIN} || $0);
-    $shortname =~ s/^CHECK_//;     # Remove any leading CHECK_
+    return $arg->{shortname} if (defined($arg->{shortname}));
+    $shortname = $arg->{plugin} if (defined( $arg->{plugin}));
+
+    $shortname = uc basename($shortname || $ENV{NAGIOS_PLUGIN} || $0);
+    $shortname =~ s/^CHECK_(?:BY_)?//;     # Remove any leading CHECK_[BY_]
     $shortname =~ s/\..*$//;       # Remove any trailing suffix
     return $shortname;
 }
@@ -116,7 +119,8 @@ sub nagios_exit {
     # Setup output
     my $output = "$STATUS_TEXT{$code}";
     $output .= " - $message" if defined $message && $message ne '';
-    my $shortname = get_shortname(plugin => $arg->{plugin});
+    my $shortname = ($arg->{plugin} ? $arg->{plugin}->shortname : undef);
+    $shortname ||= get_shortname(); # Should happen only if funnctions are called directly
     $output = "$shortname $output" if $shortname;
     if ($arg->{plugin}) {
         my $plugin = $arg->{plugin};