@vingarzan commented on this pull request.
> + shm_str_dup_macro(x->vrf, vrf);
+ if(!x->vrf.s)
+ goto error;
https://github.com/kamailio/kamailio/blob/d2c3db281e08f53f4b4e892978ebf43df6be58ce/src/modules/cdp/utils.h#L67
So it seems it is wasteful, but safe (including zero-padding). I was more of a
fan of a variant where it would not allocate anything and the check if "empty"
was on str->len, not str->s. Hence all is good.
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