[Serusers] exec module question

[Jiri Kuthan]

Greg,

that's related to SER's return value convention. Actions
returning zero are rather exceptional and lead to immediate 
leaving the script. (Good for example on receipt of an unnecessary
retransmission).


Otherwise:
>0 ... true
<0 false


-jiri

At 05:07 AM 10/28/2003, Greg Fausak wrote:
>Jiri,
>
>I've got a bit more basic a question.
>In the exec_s3.cfg file in examples, the statement:
>if (!exec_msg('blah blah'))
>{
>        ...dothis...
>};
>I was going to play around and see what return values get through,
>but I thought first I'd look at the source code:
>
>exec.c in modules/exec will return:
>-1 if execution / pipe error
>-1 if the execution works but returns a non-zero value
>1 if the execution worked and returned a 0
>
>My yacc is a bit rusty.
>
>My question is this.  I would expect exec_msg() to return a 0
>or a non-zero, but my examination of the exec.c file indicates
>it can't return a zero.  That doesn't seem right, am I reading it wrong?
>It seems to me that the expression !exec_msg() can never evaluate
>to true, because exec_msg() can't return a 0.
>
>---greg
>
>
>
>
>
>Jiri Kuthan wrote:
>
>>Send us the message in question too.
>>-jiri
>>At 09:24 PM 10/27/2003, Andres wrote:
>>
>>>Hi,
>>>
>>>I am testing the exec module by outputting some variables to a flat file using:   SIP_HF_<hf_name>
>>>
>>>So for example I put something like 
>>>exec_msg("echo `date` - From: $SIP_HF_FROM To: $SIP_HF_TO  Contact: $SIP_HF_CONTACT Src_IP: $SIP_SRCIP User-Agent: $SIP_HF_USER-AGENT >> /var/log/ser/ser_register.log");
>>>
>>>but the User-Agent header field does not get passed even though a sniffer trace shows it in the SIP REGISTER request.
>>>
>>>Can somebody tell me why not?
>>>
>>>Thanks,
>>>Andres
>>>
>>>_______________________________________________
>>>Serusers mailing list
>>>serusers at lists.iptel.org
>>>http://lists.iptel.org/mailman/listinfo/serusers
>>
>>--
>>Jiri Kuthan            http://iptel.org/~jiri/ 
>>_______________________________________________
>>Serusers mailing list
>>serusers at lists.iptel.org
>>http://lists.iptel.org/mailman/listinfo/serusers
>

--
Jiri Kuthan            http://iptel.org/~jiri/