1 files changed, 23 insertions, 14 deletions

diff --git a/plugins-scripts/check_ntp.pl b/plugins-scripts/check_ntp.pl
index f8648345..68acdf65 100755
--- a/plugins-scripts/check_ntp.pl
+++ b/plugins-scripts/check_ntp.pl
@@ -119,6 +119,12 @@ my $ntpdate_error = $ERRORS{'UNKNOWN'};
 my $dispersion_error = $ERRORS{'UNKNOWN'};
 
 my $key = undef;
+# some systems don't have a proper ntpdc/xntpdc
+if ($utils::PATH_TO_NTPDC && -x $utils::PATH_TO_NTPDC ) {
+        my $have_ntpdc = 1;  
+}else{
+        my $have_ntpdc = 0;
+}
 
 # Just in case of problems, let's not hang Nagios
 $SIG{'ALRM'} = sub {
@@ -176,22 +182,25 @@ if ( $? ) {
 ### and look in the 8th column for dispersion (ntpd v4) or jitter (ntpd v3)
 ###
 
-if ( open(NTPDC,"$utils::PATH_TO_NTPDC -s $host 2>&1 |") ) {
-        while (<NTPDC>) {
-                print $_ if ($verbose);
-                if (/([^\s]+)\s+([-0-9.]+)\s+([-0-9.]+)\s+([-0-9.]+)\s+([-0-9.]+)\s+([-0-9.]+)\s+([-0-9.]+)\s+([-0-9.]+)/) {
-                        if ($8>15) {
-                                print "Dispersion = $8 \n" if ($verbose);
-                                $dispersion_error = $ERRORS{'CRITICAL'};
-                        } elsif ($8>5 && $dispersion_error<$ERRORS{'CRITICAL'}) {
-                                print "Dispersion = $8 \n" if ($verbose);
-                                $dispersion_error = $ERRORS{'WARNING'};
-                        } else {
-                                $dispersion_error = $ERRORS{'OK'};
+if ($have_ntpdc) {
+
+        if ( open(NTPDC,"$utils::PATH_TO_NTPDC -s $host 2>&1 |") ) {
+                while (<NTPDC>) {
+                        print $_ if ($verbose);
+                        if (/([^\s]+)\s+([-0-9.]+)\s+([-0-9.]+)\s+([-0-9.]+)\s+([-0-9.]+)\s+([-0-9.]+)\s+([-0-9.]+)\s+([-0-9.]+)/) {
+                                if ($8>15) {
+                                        print "Dispersion = $8 \n" if ($verbose);
+                                        $dispersion_error = $ERRORS{'CRITICAL'};
+                                } elsif ($8>5 && $dispersion_error<$ERRORS{'CRITICAL'}) {
+                                        print "Dispersion = $8 \n" if ($verbose);
+                                        $dispersion_error = $ERRORS{'WARNING'};
+                                } else {
+                                        $dispersion_error = $ERRORS{'OK'};
+                                }
                         }
                 }
+                close NTPDC;
         }
-        close NTPDC;
 }
 
 
@@ -205,7 +214,7 @@ if ($ntpdate_error != $ERRORS{'OK'}) {
                 $answer = "Server error and time difference $offset seconds greater than +/- $warning sec\n";
         }
 
-} elsif ($dispersion_error != $ERRORS{'OK'}) {
+} elsif ($have_ntpdc && $dispersion_error != $ERRORS{'OK'}) {
         $state = $dispersion_error;
         $answer = "Dispersion too high\n";
         if (defined($offset) && abs($offset) > $critical) {