check_icmp: keep performance data order in case of none-reachable hosts

For responding hosts nothing changes:

    ./check_icmp -H 10.0.0.1
    OK - 10.0.0.1 rta 0.336ms lost 0%|rta=0.336ms;200.000;500.000;0; rtmax=0.471ms;;;; rtmin=0.000ms;;;; pl=0%;40;80;0;100

In case the host is down, the performance data now contain 'U' according to:
https://www.monitoring-plugins.org/doc/guidelines.html#AEN201

Old:
    ./check_icmp -H 10.0.0.99
    CRITICAL - 10.0.0.99: Host unreachable @ 10.0.1.138. rta nan, lost 100%|pl=100%;40;80;0;100

Old:
    ./check_icmp -H 10.0.0.99
    CRITICAL - 10.0.0.99: Host unreachable @ 10.0.1.138. rta nan, lost 100%|rta=U;;;; rtmax=U;;;; rtmin=U;;;; pl=100%;40;80;0;100

This confuses some performance graphing tools, ex.: pnp.

Signed-off-by: Sven Nierlein <sven@consol.de>

2 files changed, 53 insertions, 32 deletions

diff --git a/plugins-root/check_icmp.c b/plugins-root/check_icmp.c
index 303241d..f788d42 100644
--- a/plugins-root/check_icmp.c
+++ b/plugins-root/check_icmp.c
@@ -1547,46 +1547,66 @@ finish(int sig)
         while(host) {
                 if(debug) puts("");
 
-                if (rta_mode && host->pl<100) {
-                        printf("%srta=%0.3fms;%0.3f;%0.3f;0; %srtmax=%0.3fms;;;; %srtmin=%0.3fms;;;; ",
-                           (targets > 1) ? host->name : "",
-                           host->rta / 1000, (float)warn.rta / 1000, (float)crit.rta / 1000,
-                           (targets > 1) ? host->name : "", (float)host->rtmax / 1000,
-                           (targets > 1) ? host->name : "", (host->rtmin < INFINITY) ? (float)host->rtmin / 1000 : (float)0);
+                if (rta_mode) {
+                        if (host->pl<100) {
+                                printf("%srta=%0.3fms;%0.3f;%0.3f;0; %srtmax=%0.3fms;;;; %srtmin=%0.3fms;;;; ",
+                                        (targets > 1) ? host->name : "",
+                                        host->rta / 1000, (float)warn.rta / 1000, (float)crit.rta / 1000,
+                                        (targets > 1) ? host->name : "", (float)host->rtmax / 1000,
+                                        (targets > 1) ? host->name : "", (host->rtmin < INFINITY) ? (float)host->rtmin / 1000 : (float)0);
+                        } else {
+                                printf("%srta=U;;;; %srtmax=U;;;; %srtmin=U;;;; ",
+                                        (targets > 1) ? host->name : "",
+                                        (targets > 1) ? host->name : "",
+                                        (targets > 1) ? host->name : "");
+                        }
                 }
 
                 if (pl_mode) {
                         printf("%spl=%u%%;%u;%u;0;100 ", (targets > 1) ? host->name : "", host->pl, warn.pl, crit.pl);
                 }
 
-                if (jitter_mode && host->pl<100) {
-                        printf("%sjitter_avg=%0.3fms;%0.3f;%0.3f;0; %sjitter_max=%0.3fms;;;; %sjitter_min=%0.3fms;;;; ",
-                                (targets > 1) ? host->name : "",
-                                (float)host->jitter,
-                                (float)warn.jitter,
-                                (float)crit.jitter,
-                                (targets > 1) ? host->name : "",
-                                (float)host->jitter_max / 1000, (targets > 1) ? host->name : "",
-                                (float)host->jitter_min / 1000
-                        );
+                if (jitter_mode) {
+                        if (host->pl<100) {
+                                printf("%sjitter_avg=%0.3fms;%0.3f;%0.3f;0; %sjitter_max=%0.3fms;;;; %sjitter_min=%0.3fms;;;; ",
+                                        (targets > 1) ? host->name : "",
+                                        (float)host->jitter,
+                                        (float)warn.jitter,
+                                        (float)crit.jitter,
+                                        (targets > 1) ? host->name : "",
+                                        (float)host->jitter_max / 1000, (targets > 1) ? host->name : "",
+                                        (float)host->jitter_min / 1000
+                                );
+                        } else {
+                                printf("%sjitter_avg=U;;;; %sjitter_max=U;;;; %sjitter_min=U;;;; ",
+                                        (targets > 1) ? host->name : "",
+                                        (targets > 1) ? host->name : "",
+                                        (targets > 1) ? host->name : "");
+                        }
                 }
 
-                if (mos_mode && host->pl<100) {
-                        printf("%smos=%0.1f;%0.1f;%0.1f;0;5 ",
-                                (targets > 1) ? host->name : "",
-                                (float)host->mos,
-                                (float)warn.mos,
-                                (float)crit.mos
-                        );
+                if (mos_mode) {
+                        if (host->pl<100) {
+                                printf("%smos=%0.1f;%0.1f;%0.1f;0;5 ",
+                                        (targets > 1) ? host->name : "",
+                                        (float)host->mos,
+                                        (float)warn.mos,
+                                        (float)crit.mos);
+                        } else {
+                                printf("%smos=U;;;; ", (targets > 1) ? host->name : "");
+                        }
                 }
 
-                if (score_mode && host->pl<100) {
-                        printf("%sscore=%u;%u;%u;0;100 ",
-                                (targets > 1) ? host->name : "",
-                                (int)host->score,
-                                (int)warn.score,
-                                (int)crit.score
-                        );
+                if (score_mode) {
+                        if (host->pl<100) {
+                                printf("%sscore=%u;%u;%u;0;100 ",
+                                        (targets > 1) ? host->name : "",
+                                        (int)host->score,
+                                        (int)warn.score,
+                                        (int)crit.score);
+                        } else {
+                                printf("%sscore=U;;;; ", (targets > 1) ? host->name : "");
+                        }
                 }
 
                 host = host->next;
diff --git a/plugins-root/t/check_icmp.t b/plugins-root/t/check_icmp.t
index 4f9db86..de1d88d 100644
--- a/plugins-root/t/check_icmp.t
+++ b/plugins-root/t/check_icmp.t
@@ -12,7 +12,7 @@ my $allow_sudo = getTestParameter( "NP_ALLOW_SUDO",
         "no" );
 
 if ($allow_sudo eq "yes" or $> == 0) {
-        plan tests => 39;
+        plan tests => 40;
 } else {
         plan skip_all => "Need sudo to test check_icmp";
 }
@@ -57,7 +57,8 @@ $res = NPTest->testCmd(
         "$sudo ./check_icmp -H $host_nonresponsive -w 10000ms,100% -c 10000ms,100% -t 2"
         );
 is( $res->return_code, 2, "Timeout - host nonresponsive" );
-like( $res->output, '/100%/', "Error contains '100%' string (for 100% packet loss)" );
+like( $res->output, '/pl=100%/', "Error contains 'pl=100%' string (for 100% packet loss)" );
+like( $res->output, '/rta=U/', "Error contains 'rta=U' string" );
 
 $res = NPTest->testCmd(
         "$sudo ./check_icmp -w 10000ms,100% -c 10000ms,100%"