Nagios Support Forum

Somebody on the german nagios forum used a symbolic link (check_host) to check_icmp. In hostcheck mode the perfdata output of check_icmp is somewhat incomplete as no valid warning value is returned which leads to an error if using functions to process the values.

The following patch (for 1.4.11) should resolve the problem:

--- check_icmp.c.orig 2007-12-11 06:57:35.000000000 +0100
+++ check_icmp.c 2008-05-11 12:39:53.000000000 +0200
@@ -778,7 +778,7 @@
/* if we're in hostcheck mode, exit with limited printouts */
if(mode == MODE_HOSTCHECK) {
printf("OK - %s responds to ICMP. Packet %u, rta %0.3fms|"
- "pkt=%u;;0;%u rta=%0.3f;%0.3f;%0.3f;;\n",
+ "pkt=%u;0;0;%u rta=%0.3f;%0.3f;%0.3f;;\n",
host->name, icmp_recv, (float)tdiff / 1000,
icmp_recv, packets, (float)tdiff / 1000,
(float)warn.rta / 1000, (float)crit.rta / 1000);

Wolfgang
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