err= adns__findlabel_next(&fls, &lablen,&labstart);
assert(!err); assert(lablen >= 0);
err= typei->checklabel(ads,flags, &cls,ctx,
err= adns__findlabel_next(&fls, &lablen,&labstart);
assert(!err); assert(lablen >= 0);
err= typei->checklabel(ads,flags, &cls,ctx,