Add test for forward compression pointer (#1123)

Automatically submitted.
miekg · May 27, 2020 · 203ad24 · 203ad24
1 parent 0ffcea3
commit 203ad24
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/msg_test.go b/msg_test.go
@@ -202,6 +202,7 @@ func TestUnpackDomainName(t *testing.T) {
 			"\x03foo" + "\x03bar" + "\x07example" + "\xC0\x04",
 			"",
 			ErrLongDomain.Error()},
+		{"forward compression pointer", "\x02\xC0\xFF\xC0\x01", "", ErrBuf.Error()},
 		{"reserved compression pointer 0b10", "\x07example\x80", "", "dns: bad rdata"},
 		{"reserved compression pointer 0b01", "\x07example\x40", "", "dns: bad rdata"},
 	}