Nice catch!
2012/8/29 <cinap_len...@gmx.de>:
> you are right!
>
> baddelegation() is checking for that, but it was not effective because it
> bailed out before even entering that for loop because of:
>
> if(t == nil)
> t = lookupinfo("dom");
> if(t == nil)
> return 0; <- delegation loop will not be checked :(
>
> the following patch makes it work:
>
> dblookup.c:799,806 - /sys/src/cmd/ndb/dblookup.c:799,804
>
> if(t == nil)
> t = lookupinfo("dom");
> - if(t == nil)
> - return 0;
>
> for(; rp; rp = rp->next){
> if(rp->type != Tns)
> dblookup.c:816,821 - /sys/src/cmd/ndb/dblookup.c:814,822
> return 1;
> }
>
> + if(t == nil)
> + continue;
> +
> /* see if delegating to us what we don't own */
> for(nt = t; nt != nil; nt = nt->entry)
> if(rp->host && cistrcmp(rp->host->name, nt->val) == 0)
> --
> cinap
>
