Re: hyatt.com spf record and dnscache

On Wed, Jul 28, 2010 at 9:44 AM, David Hubbard
<[email protected]> wrote:
> Is this an issue of the size of the record and djbdns or
> something I'm overlooking?

It's not the size of the record that's the issue, it's that their name
servers are sending back >512 byte UDP responses regardless of the
client's buffer size advertisement (or lack thereof, in the case of
djbdns).

Patch below will workaround the issue.  (Apologies if gmail mangles it.)

--- dns_transmit.c~     Wed Jul 28 04:23:30 2010
+++ dns_transmit.c      Wed Jul 28 04:23:30 2010
@@ -240,7 +240,7 @@

 int dns_transmit_get(struct dns_transmit *d,const iopause_fd *x,const
struct taia *when)
 {
-  char udpbuf[513];
+  char udpbuf[4097];
   unsigned char ch;
   int r;
   int fd;