libgo: Update to go1.6rc1.

    
    Reviewed-on: https://go-review.googlesource.com/19200

From-SVN: r233110

1 files changed, 48 insertions, 0 deletions

diff --git a/libgo/go/net/dnsclient_test.go b/libgo/go/net/dnsclient_test.go
index 3ab2b83..7308fb0 100644
--- a/libgo/go/net/dnsclient_test.go
+++ b/libgo/go/net/dnsclient_test.go
@@ -67,3 +67,51 @@ func testWeighting(t *testing.T, margin float64) {
 func TestWeighting(t *testing.T) {
 	testWeighting(t, 0.05)
 }
+
+// Issue 8434: verify that Temporary returns true on an error when rcode
+// is SERVFAIL
+func TestIssue8434(t *testing.T) {
+	msg := &dnsMsg{
+		dnsMsgHdr: dnsMsgHdr{
+			rcode: dnsRcodeServerFailure,
+		},
+	}
+
+	_, _, err := answer("golang.org", "foo:53", msg, uint16(dnsTypeSRV))
+	if err == nil {
+		t.Fatal("expected an error")
+	}
+	if ne, ok := err.(Error); !ok {
+		t.Fatalf("err = %#v; wanted something supporting net.Error", err)
+	} else if !ne.Temporary() {
+		t.Fatalf("Temporary = false for err = %#v; want Temporary == true", err)
+	}
+	if de, ok := err.(*DNSError); !ok {
+		t.Fatalf("err = %#v; wanted a *net.DNSError", err)
+	} else if !de.IsTemporary {
+		t.Fatalf("IsTemporary = false for err = %#v; want IsTemporary == true", err)
+	}
+}
+
+// Issue 12778: verify that NXDOMAIN without RA bit errors as
+// "no such host" and not "server misbehaving"
+func TestIssue12778(t *testing.T) {
+	msg := &dnsMsg{
+		dnsMsgHdr: dnsMsgHdr{
+			rcode:               dnsRcodeNameError,
+			recursion_available: false,
+		},
+	}
+
+	_, _, err := answer("golang.org", "foo:53", msg, uint16(dnsTypeSRV))
+	if err == nil {
+		t.Fatal("expected an error")
+	}
+	de, ok := err.(*DNSError)
+	if !ok {
+		t.Fatalf("err = %#v; wanted a *net.DNSError", err)
+	}
+	if de.Err != errNoSuchHost.Error() {
+		t.Fatalf("Err = %#v; wanted %q", de.Err, errNoSuchHost.Error())
+	}
+}