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Annotation of embedaddon/dnsmasq/contrib/try-all-ns/dnsmasq-2.68-try-all-ns, revision 1.1.1.1

1.1       misho       1: From: Jesse Glick <jglick@cloudbees.com>
                      2: To: dnsmasq-discuss@lists.thekelleys.org.uk
                      3: Subject: Re: [Dnsmasq-discuss] Ability to delegate to one server but fall
                      4:  back to another after NXDOMAIN?
                      5: 
                      6: 
                      7: On Wed, Jan 15, 2014 at 12:30 PM, Simon Kelley <simon@thekelleys.org.uk> wrote:
                      8: > > There's a (very old) patch in contrib/try-all-ns that would make a starting point
                      9: This does not apply against trunk, so I tried to rework it. The
                     10: following appears to do what I expect:
                     11: 
                     12: diff --git a/src/forward.c b/src/forward.c
                     13: index 8167229..76070b5 100644
                     14: --- a/src/forward.c
                     15: +++ b/src/forward.c
                     16: @@ -610,7 +610,11 @@ void reply_query(int fd, int family, time_t now)
                     17: 
                     18:    if ((RCODE(header) == SERVFAIL || RCODE(header) == REFUSED) &&
                     19:        !option_bool(OPT_ORDER) &&
                     20: -      forward->forwardall == 0)
                     21: +      forward->forwardall == 0 ||
                     22: +      /* try each in turn */
                     23: +      RCODE(header) == NXDOMAIN &&
                     24: +      option_bool(OPT_ORDER) &&
                     25: +      server->next != NULL)
                     26:      /* for broken servers, attempt to send to another one. */
                     27:      {
                     28:        unsigned char *pheader;
                     29: