escape character in execstatement

[Anders Håål]

The execution in bischeck for a check command is done with a simple 
Runtime.getRuntime().exec("your command") where "your command" in your 
example is:

/usr/bin/python3.5 /usr/local/nagios/libexec/script_test.py -h hostname 
-w host=myHost and par=myPar

Using Runtime.getRuntime().exec just take the string and try to execute 
it without any understanding of what a normal shell would do with 
quoting, piping, env variables, etc. For the exec method space is the 
only separator. So anything like that is up to your program to be 
manage, like your workaround.

If you need to have a full shell context running your command or even do 
pipeline you can check out 
http://codewhitesec.blogspot.se/2015/03/sh-or-getting-shell-environment-from.html 
to do some magic stuff in the exec() method.

/Anders

On 01/11/2018 04:24 PM, Francesco Giuseppe Toffoli wrote:
>
> Hi everybody,
> I've the following situation. I' using a script, which is run in the 
> <execstatement>.
> The script gets some parameters from the CLI:
>
> <execstatement>{"check":"/usr/bin/python3.5 
> /usr/local/nagios/libexec/script_test.py -h hostname *-w host=myHost 
> and par=myPar* ", "label":"value"}</execstatement>
>
> One of the CLI parameters, (-w in this example), takes a string 
> separated by spaces (%s).
> I've seen that Bischeck in this case does not run the script,raising 
> an exception,  probably does not recognize the spaces.
> Also surrounding the parameter with ' or escaped \" does not work:
>
> *-w 'host=myHost and par=myPar'
> ***-w \"host=myHost and par=myPar\"**
>
> **
> **
>
> The workaround i found is to separate the string argument with a 
> comma, and inside the script split them by the comma and recreate the 
> desired string.****(host=myHost,and,par=myPar).
> Is there an easier way?
>
> Thanks,
> Francesco
>
> **
> **
>
>
>
> -- 
>
> Francesco Giuseppe Toffoli
> Monitoring Engineer
>
> GSE Department
>
> Tel: +39 01127387488
>
> Mobile: +39 349.800.60.35
> Email: _ftoffoli at skylogic.it <mailto:ftoffoli at skylogic.it>_
> *
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