check_load weird behavior in French config

[Andreas Ericsson]

Serveur-Faucon Surveillance wrote:
> Hi all,
> 
> The is somehow a weird behavior with check_load with my French
> Mandrake 10.x (plugins version 1.4)
> 
> Somehow, when I reboot the server, check_load does not work anymore.
> I go on the console, /init.d/nrpe restart the program and everything
> is fine after. Is there someone with/had the same problem?
> 
> 
> --- all the tests ---
> 
> On another normal system (rh9)
> 
> root# /usr/local/nagios/libexec/check_load -w 20,15,10 -c 35,30,25 OK
> - load average: 0.37, 0.66, 0.82|load1=0;20;35;0 load5=0;15;30;0
> load15=0;10;25;0
> 
> Everything is fine...
> 
> On a  English Mandrake 10.x
> 
> root]# /usr/local/nagios/libexec/check_load -w 20,15,10 -c 35,30,25 
> OK - load average: 0.31, 0.23,
> 0.20|load1=0.310000;20.000000;35.000000;0.000000
> load5=0.230000;15.000000;30.000000;0.000000
> load15=0.200000;10.000000;25.000000;0.000000
> 
> Everything is fine...
> 
> But... on a French Mandrake 10.x
> 
> /usr/local/nagios/libexec/check_load -w 20,15,10 -c 35,30,25 Warning
> threshold must be float or float triplet! Usage: check_load -w
> WLOAD1,WLOAD5,WLOAD15 -c CLOAD1,CLOAD5,CLOAD15 check_load (-h |
> --help) for detailed help check_load (-V | --version) for version
> information
> 
> So he needs some " " " since the command "w" returns with "," insted
> of "."
> 
> root]# w 09:08:23 up 15:48,  1 user,  load average: 0,00, 0,00, 0,00 
> USER     TTY        LOGIN@   IDLE   JCPU   PCPU WHAT root     pts/0
> 09:07    0.00s  0.10s  0.01s w
> 
> root]# /usr/local/nagios/libexec/check_load -w "20,0","15,0","10,0"
> -c "35,0","30,0","25,0" OK - load average: 0,00, 0,00,
> 0,00|load1=0;20;35;0 load5=0;15;30;0 load15=0;10;25;0
> 
> everything works now. But when I reboot, there is a critical
> situation. When I restart nrpe, everything is fine.
> 

This has to do with locale settings. The french numbers locale appoints 
',' to be the decimal point (decimal comma or whatever), which clashes 
horribly with the plugins since it's using strtod() to get the 
thresholds. strtod() barfs on more than one decimal point (decimal 
comma, whatever), since any number can only have one decimal point 
(comma...).

It's terribly involved to try to write code to parse all different 
locales properly. The best bet would probably be to use a semi-colon, 
but that would leave current users stumped because the shell will think 
you're starting a new command. Like I said; Terribly involved.

> 
> 
> --------------------------------------------------- Alexandre Racine
> - www.gardienvirtuel.com Montréal, Québec, Canada
> 
> 
> 
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-- 
Andreas Ericsson                   andreas.ericsson at op5.se
OP5 AB                             www.op5.se
Lead Developer


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