check_icmp: use packet reception time to compute rtt (#1232)

[Matthieu Kermagoret]

Currently, check_icmp uses processing time to compute rtt. This can lead to
invalid values when the machine is heavily loaded. The patch I propose uses
the SO_TIMESTAMP feature of setsockopt to use the kernel reception time
instead. You can merge this Pull Request by running:

git pull https://github.com/ganoze/monitoring-plugins master

Or you can view, comment on it, or merge it online at:

https://github.com/monitoring-plugins/monitoring-plugins/pull/1232

-- Commit Summary --

* Use kernel reception time on ICMP packets to compute rtt.

* Restore check_icmp header style (spaces at EOL).

-- File Changes --

M plugins-root/check_icmp.c (55)

-- Patch Links --

https://github.com/monitoring-plugins/monitoring-plugins/pull/1232.patch
https://github.com/monitoring-plugins/monitoring-plugins/pull/1232.diff

-- 
Reply to this email on GitHub:
https://github.com/monitoring-plugins/monitoring-plugins/pull/1232
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