Borrow patch from Fedora to add DNSSEC support: if glibc 2.11 is

installed, the host key is published in an SSHFP RR secured with DNSSEC,
and VerifyHostKeyDNS=yes, then ssh will no longer prompt for host key
verification (closes: #572049).

1 files changed, 5 insertions, 5 deletions

diff --git a/openbsd-compat/getrrsetbyname.c b/openbsd-compat/getrrsetbyname.c
index 98876673d..011821198 100644
--- a/openbsd-compat/getrrsetbyname.c
+++ b/openbsd-compat/getrrsetbyname.c
@@ -209,8 +209,8 @@ getrrsetbyname(const char *hostname, unsigned int rdclass,
                 goto fail;
         }
 
-        /* don't allow flags yet, unimplemented */
-        if (flags) {
+        /* Allow RRSET_FORCE_EDNS0 flag only. */
+        if ((flags & !RRSET_FORCE_EDNS0) != 0) {
                 result = ERRSET_INVAL;
                 goto fail;
         }
@@ -226,9 +226,9 @@ getrrsetbyname(const char *hostname, unsigned int rdclass,
 #endif /* DEBUG */
 
 #ifdef RES_USE_DNSSEC
-        /* turn on DNSSEC if EDNS0 is configured */
-        if (_resp->options & RES_USE_EDNS0)
-                _resp->options |= RES_USE_DNSSEC;
+        /* turn on DNSSEC if required  */
+        if (flags & RRSET_FORCE_EDNS0)
+                _resp->options |= (RES_USE_EDNS0|RES_USE_DNSSEC);
 #endif /* RES_USE_DNSEC */
 
         /* make query */