Hi Joel,

Thanks for your quick response. Okay then I went this way and convert it to int and do then the checking. The mailing list is a good source for best practices questions.

I had some concerns about the core error warnings if the value is alphanumeric or something else not numeric.

Cheers Karsten Horsmann

Joel Serrano joel@textplus.com schrieb am Fr., 18. Okt. 2019, 20:12:

Hey Karsten,

I had a similar doubt and following Daniel's recommendation I went with the same route you did (using {s.int} to convert to integer).

Quote from another thread: *"you can also convert the header value to integer using the transformation {s.int http://s.int/}, that's safer if you need to do other types of comparison such as > or <, because comparing string values might give the result you don't expect"*

Hope this helps!

Joel.

On Fri, Oct 18, 2019 at 10:58 AM Karsten Horsmann khorsmann@gmail.com wrote:

...

Hi List,

I use Kamailio 5.2.x and I want to fetch an value from an X Header and do some checks like "is not empty" and "should be an integer".

AFAIK per default all values are strings with the hdr function.

What are the best way for some validations within Kamailio script language?

if(is_present_hf("X-someheader")) { $avp(routing_target) = $(hdr(X-someheader){s.int });

if(!ds_list_exists("$avp(routing_target)")) Cheers Karsten Horsmann _______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

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