ref: 453d3c3d4c96899c7bbca81b8a143ac7a934aebe
parent: 78eff200d85e0fc2f92622d221c0e3d81aaf9522
author: cinap_lenrek <[email protected]>
date: Mon Oct 30 18:18:07 EDT 2023
ndb/dns: make sure theres only a single Topt option in getednsopt().
--- a/sys/src/cmd/ndb/dnresolve.c
+++ b/sys/src/cmd/ndb/dnresolve.c
@@ -502,14 +502,21 @@
RR*
getednsopt(DNSmsg *mp)
{- RR *rp;
+ RR *rp, *x;
rp = rrremtype(&mp->ar, Topt);
if(rp == nil)
return nil;
mp->arcount--;
+ while((x = rp->next) != nil){+ rp->next = x->next;
+ rrfree(x);
+ mp->arcount--;
+ }
+
if(rp->udpsize < 512)
rp->udpsize = 512;
+
return rp;
}