[OpenSIPS-Devel] [opensips] added exec(cmd, output, input, error, avpenv) function for exec (#375)

[Walter Doekes]

> +		<para>
> +		WARNING: "input"/"output"/"error" parameters are not designed for a large amount of
> +		data so one should be careful when using them because server could considerably be
> +		slowed down.
> +		</para>
> +		<para>
> +		This function can be used from REQUEST_ROUTE, FAILURE_ROUTE,
> +		LOCAL_ROUTE, STARTUP_ROUTE, TIMER_ROUTE, EVENT_ROUTE, ONREPLY_ROUTE.
> +		</para>
> +		<example>
> +		<title><function moreinfo="none">exec</function> usage</title>
> +		<programlisting format="linespecific">
> +...
> +$avp(env) = "a";
> +$avp(env) = "b";
> +exec("ls -l", "$var(out)",, "$avp(env)");

This example does not take stderr into account.

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https://github.com/OpenSIPS/opensips/pull/375/files#r19524764
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