Hello, On 16/09/15 10:59, Yufei Tao wrote: > Hi, > > Thanks for the replies! The first thing I looked at was the > encode/decode.hexa transformations but it only transforms between > ASCII characters and Hex numbers. Then I used exec_avp to call a bash > command (for example, 'echo $((0x123))' gives you 291) which works. > But calling something external may not be optimal I thought? > an embedded script like lua (see app_lua module) could be the alternative for anything that is not available as config function. Exec might not be the most performat option that can be used, but it won't have any relevant impact if you don't execute any long time taking application.
Anyhow, I looked at the code and found an easy way to get this working so, I pushed a patch that makes the cast operator (int) to detect and convert hex: * https://github.com/kamailio/kamailio/commit/33f159121193b3ed09e2ec7aa7b55aa543aeb852 You should be able to cherry pick that commit in your branch. It can be used like: $var(x) = "0x10"; $var(y) = (int)$var(x); xlog("hex x = $var(x); dec y = $var(y)\n"); Adding transformations would be another option to be done when time allows. Cheers, Daniel -- Daniel-Constantin Mierla http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Book: SIP Routing With Kamailio - http://www.asipto.com Kamailio Advanced Training, Sep 28-30, 2015, in Berlin - http://asipto.com/u/kat _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users@lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users