From: cinap_lenrek@gmx.de
To: 9fans@9fans.net
Subject: Re: [9fans] dns poisoning
Date: Wed, 29 Aug 2012 18:16:03 +0200 [thread overview]
Message-ID: <824997a9f2cda909d1c0a19e4e6aa377@rei2.9hal> (raw)
In-Reply-To: <29b5e5de98bbf11a690b6831b3cf0ea6@kw.quanstro.net>
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
next prev parent reply other threads:[~2012-08-29 16:16 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-29 3:29 cinap_lenrek
2012-08-29 4:22 ` erik quanstrom
2012-08-29 16:16 ` cinap_lenrek [this message]
2012-08-29 16:26 ` Devon H. O'Dell
2012-08-29 16:37 ` erik quanstrom
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