resolvers: no more using AI_CANONNAME

No resolver anymore needs to use AI_CANONNAME and do reverse
lookups.  We should work hard to avoid having code that relies on
it.

3 files changed, 1 insertions, 13 deletions

diff --git a/lib/hostip4.c b/lib/hostip4.c
index aa33fb965..05dd73e0a 100644
--- a/lib/hostip4.c
+++ b/lib/hostip4.c
@@ -160,11 +160,6 @@ Curl_addrinfo *Curl_ipv4_resolve_r(const char *hostname,
       snprintf(sbuf, sizeof(sbuf), "%d", port);
       sbufptr = sbuf;
     }
-#ifdef HAVE_GSSAPI
-  if(conn->data->set.krb)
-    /* if krb is used, we (might) need the canonical host name */
-    hints.ai_flags |= AI_CANONNAME;
-#endif
 
     (void)Curl_getaddrinfo_ex(hostname, sbufptr, &hints, &ai);
 
diff --git a/lib/hostip6.c b/lib/hostip6.c
index fb3ad0c08..7d0a9122f 100644
--- a/lib/hostip6.c
+++ b/lib/hostip6.c
@@ -213,11 +213,6 @@ Curl_addrinfo *Curl_getaddrinfo(struct connectdata *conn,
     /* the given address is numerical only, prevent a reverse lookup */
     hints.ai_flags = AI_NUMERICHOST;
   }
-#ifdef HAVE_GSSAPI
-  if(conn->data->set.krb)
-    /* if krb is used, we (might) need the canonical host name */
-    hints.ai_flags |= AI_CANONNAME;
-#endif
 
   if(port) {
     snprintf(sbuf, sizeof(sbuf), "%d", port);
diff --git a/lib/hostthre.c b/lib/hostthre.c
index 1e4845e2c..6698cd848 100644
--- a/lib/hostthre.c
+++ b/lib/hostthre.c
@@ -561,9 +561,7 @@ Curl_addrinfo *Curl_getaddrinfo(struct connectdata *conn,
   memset(&hints, 0, sizeof(hints));
   hints.ai_family = pf;
   hints.ai_socktype = conn->socktype;
-#if 0 /* removed nov 8 2005 before 7.15.1 */
-  hints.ai_flags = AI_CANONNAME;
-#endif
+
   snprintf(sbuf, sizeof(sbuf), "%d", port);
 
   /* fire up a new resolver thread! */