[Nagiosplug-devel] [ nagiosplug-Bugs-3535140 ] check_ping yields warning on a single lost package

[SourceForge.net]

Bugs item #3535140, was opened at 2012-06-14 02:45
Message generated for change (Tracker Item Submitted) made by 
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=397597&aid=3535140&group_id=29880

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: General plugin execution
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: https://www.google.com/accounts ()
Assigned to: Nobody/Anonymous (nobody)
Summary: check_ping yields warning on a single lost package

Initial Comment:
check_ping gives WARNING if a single packet is lost, regardless of what warning threshold is set.

The reason is that the ping exit status is used, and ref the manual page of ping a single lost packet will cause ping to exit with 1 instead of 0:

"If a packet count and deadline  are  both  specified,  and  fewer  than  count  packets are received by the time the deadline has arrived, it will also exit with code 1."

Tested with those versions of ping installed:

$ ping -V
ping utility, iputils-sss20071127
$ ping -V
ping utility, iputils-sss20101006

The attached patch will cause check_ping to ignore the exit code from ping.
Version 1.4.15 affected (even v1.4.15.61.g4d527)

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=397597&aid=3535140&group_id=29880